2025
Olyaee, Maryam; Peña-Martín, Juan P; Romero-Jerez, Juan M
Statistical Characterization and Performance of the Extreme Two-Wave Fading Model Proceedings Article
In: Proc. IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy, 2025.
@inproceedings{olyaeeWCNC,
title = {Statistical Characterization and Performance of the Extreme Two-Wave Fading Model},
author = {Maryam Olyaee and Juan P Peña-Martín and Juan M Romero-Jerez},
year = {2025},
date = {2025-03-01},
booktitle = {Proc. IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Olyaee, Maryam; Peña-Martín, Juan P.; Lopez-Martinez, F. J.; Romero-Jerez, Juan M.
The Multi-cluster Two-Wave Fading Model Journal Article
In: IEEE Transactions on Communications, vol. 73, no. 4, pp. 2707-2718, 2025.
@article{10697184b,
title = {The Multi-cluster Two-Wave Fading Model},
author = {Maryam Olyaee and Juan P. Peña-Martín and F. J. Lopez-Martinez and Juan M. Romero-Jerez},
doi = {10.1109/TCOMM.2024.3469543},
year = {2025},
date = {2025-01-01},
journal = {IEEE Transactions on Communications},
volume = {73},
number = {4},
pages = {2707-2718},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Villa, Manny; Casilari, Eduardo
Energy-Efficient Fall-Detection System Using LoRa and Hybrid Algorithms Journal Article
In: Biomimetics, vol. 10, no. 5, 2025, ISSN: 2313-7673.
@article{biomimetics10050313,
title = {Energy-Efficient Fall-Detection System Using LoRa and Hybrid Algorithms},
author = {Manny Villa and Eduardo Casilari},
url = {https://www.mdpi.com/2313-7673/10/5/313},
doi = {10.3390/biomimetics10050313},
issn = {2313-7673},
year = {2025},
date = {2025-01-01},
journal = {Biomimetics},
volume = {10},
number = {5},
abstract = {Wearable fall-detection systems have received significant research attention during the last years. Fall detection in wearable devices presents key challenges, particularly in balancing high precision with low power consumption—both of which are essential for the continuous monitoring of older adults and individuals with reduced mobility. This study introduces a hybrid system that integrates a threshold-based model for preliminary detection with a deep learning-based approach that combines a CNN (Convolutional Neural Network) for spatial feature extraction with a LSTM (Long Short-Term Memory) model for temporal pattern recognition, aimed at improving classification accuracy. LoRa technology enables long-range, energy-efficient communication, ensuring real-time monitoring across diverse environments. The wearable device operates in ultra-low-power mode, capturing acceleration data at 20 Hz and transmitting a 4-s window when a predefined threshold in the acceleration magnitude is exceeded. The CNN-LSTM classifier refines event identification, significantly reducing false positives. This design extends operational autonomy to 178 h of continuous monitoring. The experimental and systematic evaluation of the prototype achieved a 96.67% detection rate (sensitivity) for simulated falls and a 100% specificity in classifying conventional Activities of Daily Living as non-falls. These results establish the system as a robust and scalable solution, effectively addressing limitations in power efficiency, connectivity, and detection accuracy while enhancing user safety and quality of life.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Wearable fall-detection systems have received significant research attention during the last years. Fall detection in wearable devices presents key challenges, particularly in balancing high precision with low power consumption—both of which are essential for the continuous monitoring of older adults and individuals with reduced mobility. This study introduces a hybrid system that integrates a threshold-based model for preliminary detection with a deep learning-based approach that combines a CNN (Convolutional Neural Network) for spatial feature extraction with a LSTM (Long Short-Term Memory) model for temporal pattern recognition, aimed at improving classification accuracy. LoRa technology enables long-range, energy-efficient communication, ensuring real-time monitoring across diverse environments. The wearable device operates in ultra-low-power mode, capturing acceleration data at 20 Hz and transmitting a 4-s window when a predefined threshold in the acceleration magnitude is exceeded. The CNN-LSTM classifier refines event identification, significantly reducing false positives. This design extends operational autonomy to 178 h of continuous monitoring. The experimental and systematic evaluation of the prototype achieved a 96.67% detection rate (sensitivity) for simulated falls and a 100% specificity in classifying conventional Activities of Daily Living as non-falls. These results establish the system as a robust and scalable solution, effectively addressing limitations in power efficiency, connectivity, and detection accuracy while enhancing user safety and quality of life.
Villa, Manny; Casilari, Eduardo
Optimization of Data Storage and Transmission in Wearable Devices for ADLs and Falls Using Bluetooth Low Energy: An Approach to Minimize Packet Loss Proceedings Article
In: Suni-Lopez, Franci; Flores, Elvira G. Rincón; Cruz, Hernan Alejandro Quintana; dos Santos Nunes, Eunice Pereira (Ed.): Extended Reality and Serious Games for Education, Competitiveness, and Wellbeing, pp. 203–215, Springer Nature Switzerland, Cham, 2025, ISBN: 978-3-031-91481-2.
@inproceedings{10.1007/978-3-031-91481-2_14,
title = {Optimization of Data Storage and Transmission in Wearable Devices for ADLs and Falls Using Bluetooth Low Energy: An Approach to Minimize Packet Loss},
author = {Manny Villa and Eduardo Casilari},
editor = {Franci Suni-Lopez and Elvira G. Rincón Flores and Hernan Alejandro Quintana Cruz and Eunice Pereira dos Santos Nunes},
doi = {10.1007/978-3-031-91481-2_14},
isbn = {978-3-031-91481-2},
year = {2025},
date = {2025-01-01},
booktitle = {Extended Reality and Serious Games for Education, Competitiveness, and Wellbeing},
pages = {203–215},
publisher = {Springer Nature Switzerland},
address = {Cham},
abstract = {This paper describes a practical experience with the real-time collection and storage of data from a wearable device used to generate essential datasets for the development of algorithms and artificial intelligence models. The aims of the models are to identify activities of daily living (ADL) movements and to detect falls. The device is equipped with accelerometer, gyroscope, magnetometer, barometer, and microphone sensors, all operating at a frequency of 20 Hz. Initially, significant packet loss was observed during real-time transmission due to distance and data saturation transmitted by Bluetooth Low Energy (BLE). To address this issue, an algorithm was developed to store data in a buffer for 10 s of movement. Subsequently, the data is transmitted to the receiving mobile device in a controlled manner when it is near the wearable device, achieving packet loss-free data transfer. The packet size was specified to analyze its impact on transmission. Two mobile applications were used: one for real-time transmission, and another for collecting data stored in the buffer. Both applications allow data to be saved in .csv files for subsequent visualization. During buffer transmission, a transmission frequency of 10 Hz was implemented on the wearable device to ensure no data loss. This device is designed for data collection in a laboratory setting to obtain raw data that will allow future researchers to create models for identifying ADL movements and falls.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
This paper describes a practical experience with the real-time collection and storage of data from a wearable device used to generate essential datasets for the development of algorithms and artificial intelligence models. The aims of the models are to identify activities of daily living (ADL) movements and to detect falls. The device is equipped with accelerometer, gyroscope, magnetometer, barometer, and microphone sensors, all operating at a frequency of 20 Hz. Initially, significant packet loss was observed during real-time transmission due to distance and data saturation transmitted by Bluetooth Low Energy (BLE). To address this issue, an algorithm was developed to store data in a buffer for 10 s of movement. Subsequently, the data is transmitted to the receiving mobile device in a controlled manner when it is near the wearable device, achieving packet loss-free data transfer. The packet size was specified to analyze its impact on transmission. Two mobile applications were used: one for real-time transmission, and another for collecting data stored in the buffer. Both applications allow data to be saved in .csv files for subsequent visualization. During buffer transmission, a transmission frequency of 10 Hz was implemented on the wearable device to ensure no data loss. This device is designed for data collection in a laboratory setting to obtain raw data that will allow future researchers to create models for identifying ADL movements and falls.
2024
Olyaee, Maryam; Peña-Martín, Juan P; Romero-Jerez, Juan M
Empirical Validation of the MTW Fading Model for Extreme Parameter Values Proceedings Article
In: Proc. 1st IEEE Latin American Conference on Antennas & Propagation (LACAP), Cartagena de Indias Colombia, 2024.
@inproceedings{olyaeeLACAP,
title = {Empirical Validation of the MTW Fading Model for Extreme Parameter Values},
author = {Maryam Olyaee and Juan P Peña-Martín and Juan M Romero-Jerez},
year = {2024},
date = {2024-12-01},
booktitle = {Proc. 1st IEEE Latin American Conference on Antennas & Propagation (LACAP), Cartagena de Indias Colombia},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Peña-Martín, J. P.; García-Berdonés, C.
Proyecto de desarrollo integrado de competencias transversales en un grado de ingeniería: Desarrollo Proceedings Article
In: XXXI Congreso Universitario de Innovación Educativa en las Enseñanzas Técnicas (CUIEET’31), pp. 371-376, Universitat de Girona – Publicacions, 2024, ISBN: 978-84-8458-680-7.
@inproceedings{Pena2024a,
title = {Proyecto de desarrollo integrado de competencias transversales en un grado de ingeniería: Desarrollo},
author = {J. P. Peña-Martín and C. García-Berdonés},
isbn = {978-84-8458-680-7},
year = {2024},
date = {2024-07-01},
booktitle = {XXXI Congreso Universitario de Innovación Educativa en las Enseñanzas Técnicas (CUIEET’31)},
pages = {371-376},
publisher = {Universitat de Girona - Publicacions},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Peña-Martín, J. P.; Santos-Díaz, I. De Los
PCI para visualizar problemas de EMC en circuitos electrónicos digitales Proceedings Article
In: XVI Congreso Tecnología Aprendizaje y Enseñanza de la Electrónica (TAEE 2024), pp. 191-197, Universidad de Málaga, 2024, ISBN: 978-84-09-63040-0.
@inproceedings{Pena2024b,
title = {PCI para visualizar problemas de EMC en circuitos electrónicos digitales},
author = {J. P. Peña-Martín and I. De Los Santos-Díaz},
isbn = {978-84-09-63040-0},
year = {2024},
date = {2024-06-01},
booktitle = {XVI Congreso Tecnología Aprendizaje y Enseñanza de la Electrónica (TAEE 2024)},
pages = {191-197},
publisher = {Universidad de Málaga},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Gonzalez-Toledo, Daniel
Interacción 3D con objetos complejos PhD Thesis
Universidad de Málaga, 2024.
@phdthesis{TesisDani2024,
title = {Interacción 3D con objetos complejos},
author = {Daniel Gonzalez-Toledo},
url = {https://riuma.uma.es/xmlui/handle/10630/31787},
year = {2024},
date = {2024-05-30},
address = {Reyes-Lecuona, A and Molina-Tanco, L.},
school = {Universidad de Málaga},
abstract = {En la actualidad, las aplicaciones 3D van más allá de la creación y exploración de mundos virtuales para el entretenimiento, siendo utilizadas en campos como la ingeniería, la arquitectura o la medicina. El objetivo aquí es visualizar, analizar y relacionar sistemas complejos, como motores, dispositivos móviles o modelos anatómicos, que poseen múltiples partes interrelacionadas y geometrías complicadas. La interacción con estas aplicaciones ha evolucionado en las últimas décadas, pero sigue dominada por dos dispositivos omnipresentes: el ratón y las pantallas táctiles.
Esta tesis se propone mejorar la usabilidad en la interacción tridimensional con objetos complejos, centrándose especialmente en el uso de dispositivos con pocos grados de libertad, como el ratón y las pantallas táctiles. El desafío es optimizar la experiencia de usuario en este contexto específico. Para iniciar esta investigación, se exploraron variantes de las técnicas clásicas de virtual trackball, considerando la pertinencia de elegir un eje fijo que fuera intrínsecamente relevante al objeto tridimensional. Nuestros estudios mostraron que de esa forma se podía mejorar la inspección de objetos virtuales. A partir de esta premisa, se desarrollaron distintas técnicas basadas en elipsoides con el fin de facilitar la interacción con objetos tridimensionales complejos.
Estas técnicas abarcaron desde la navegación esferoidal hasta la elipsoidal, generalizaciones de la virtual trackball esférica tradicional, que demostraron mejoras sustanciales en la eficiencia y la percepción de usabilidad al examinar áreas laterales y secciones ocultas de los objetos virtuales. Se exploraron y desarrollaron diversas estrategias para afrontar la visualización de partes ocultas en objetos 3D, desde métodos jerárquicos de selección hasta herramientas como eliminación, aislamiento, transparencia adaptativa y vistas explotadas. Cada una de estas estrategias presenta sus propias ventajas y limitaciones, pero la integración de estas técnicas ofrece una solución más completa para resolver situaciones de oclusión, abriendo un espectro amplio de posibilidades para la interacción con estos objetos complejos.
Además de las estrategias específicas para la gestión de oclusiones, se propusieron modelos de datos estructurados: un modelo jerárquico de componentes, un modelo de interacción 3D y un modelo de gestión de oclusiones. Estos modelos, diseñados para organizar y procesar información de sistemas complejos, tienen como finalidad mejorar la usabilidad y adaptabilidad de las técnicas de interacción.
En conjunto, la integración de estas estrategias, modelos y técnicas proporciona un marco estructurado y versátil para mejorar la usabilidad y la interacción en entornos 3D, especialmente en sistemas complejos. Estos enfoques fueron sometidos a evaluaciones y pruebas en proyectos de investigación, demostrando su adaptabilidad y fiabilidad en diversos contextos, desde aplicaciones industriales hasta entornos web, móviles y autónomos.},
keywords = {},
pubstate = {published},
tppubtype = {phdthesis}
}
En la actualidad, las aplicaciones 3D van más allá de la creación y exploración de mundos virtuales para el entretenimiento, siendo utilizadas en campos como la ingeniería, la arquitectura o la medicina. El objetivo aquí es visualizar, analizar y relacionar sistemas complejos, como motores, dispositivos móviles o modelos anatómicos, que poseen múltiples partes interrelacionadas y geometrías complicadas. La interacción con estas aplicaciones ha evolucionado en las últimas décadas, pero sigue dominada por dos dispositivos omnipresentes: el ratón y las pantallas táctiles.
Esta tesis se propone mejorar la usabilidad en la interacción tridimensional con objetos complejos, centrándose especialmente en el uso de dispositivos con pocos grados de libertad, como el ratón y las pantallas táctiles. El desafío es optimizar la experiencia de usuario en este contexto específico. Para iniciar esta investigación, se exploraron variantes de las técnicas clásicas de virtual trackball, considerando la pertinencia de elegir un eje fijo que fuera intrínsecamente relevante al objeto tridimensional. Nuestros estudios mostraron que de esa forma se podía mejorar la inspección de objetos virtuales. A partir de esta premisa, se desarrollaron distintas técnicas basadas en elipsoides con el fin de facilitar la interacción con objetos tridimensionales complejos.
Estas técnicas abarcaron desde la navegación esferoidal hasta la elipsoidal, generalizaciones de la virtual trackball esférica tradicional, que demostraron mejoras sustanciales en la eficiencia y la percepción de usabilidad al examinar áreas laterales y secciones ocultas de los objetos virtuales. Se exploraron y desarrollaron diversas estrategias para afrontar la visualización de partes ocultas en objetos 3D, desde métodos jerárquicos de selección hasta herramientas como eliminación, aislamiento, transparencia adaptativa y vistas explotadas. Cada una de estas estrategias presenta sus propias ventajas y limitaciones, pero la integración de estas técnicas ofrece una solución más completa para resolver situaciones de oclusión, abriendo un espectro amplio de posibilidades para la interacción con estos objetos complejos.
Además de las estrategias específicas para la gestión de oclusiones, se propusieron modelos de datos estructurados: un modelo jerárquico de componentes, un modelo de interacción 3D y un modelo de gestión de oclusiones. Estos modelos, diseñados para organizar y procesar información de sistemas complejos, tienen como finalidad mejorar la usabilidad y adaptabilidad de las técnicas de interacción.
En conjunto, la integración de estas estrategias, modelos y técnicas proporciona un marco estructurado y versátil para mejorar la usabilidad y la interacción en entornos 3D, especialmente en sistemas complejos. Estos enfoques fueron sometidos a evaluaciones y pruebas en proyectos de investigación, demostrando su adaptabilidad y fiabilidad en diversos contextos, desde aplicaciones industriales hasta entornos web, móviles y autónomos.
Esta tesis se propone mejorar la usabilidad en la interacción tridimensional con objetos complejos, centrándose especialmente en el uso de dispositivos con pocos grados de libertad, como el ratón y las pantallas táctiles. El desafío es optimizar la experiencia de usuario en este contexto específico. Para iniciar esta investigación, se exploraron variantes de las técnicas clásicas de virtual trackball, considerando la pertinencia de elegir un eje fijo que fuera intrínsecamente relevante al objeto tridimensional. Nuestros estudios mostraron que de esa forma se podía mejorar la inspección de objetos virtuales. A partir de esta premisa, se desarrollaron distintas técnicas basadas en elipsoides con el fin de facilitar la interacción con objetos tridimensionales complejos.
Estas técnicas abarcaron desde la navegación esferoidal hasta la elipsoidal, generalizaciones de la virtual trackball esférica tradicional, que demostraron mejoras sustanciales en la eficiencia y la percepción de usabilidad al examinar áreas laterales y secciones ocultas de los objetos virtuales. Se exploraron y desarrollaron diversas estrategias para afrontar la visualización de partes ocultas en objetos 3D, desde métodos jerárquicos de selección hasta herramientas como eliminación, aislamiento, transparencia adaptativa y vistas explotadas. Cada una de estas estrategias presenta sus propias ventajas y limitaciones, pero la integración de estas técnicas ofrece una solución más completa para resolver situaciones de oclusión, abriendo un espectro amplio de posibilidades para la interacción con estos objetos complejos.
Además de las estrategias específicas para la gestión de oclusiones, se propusieron modelos de datos estructurados: un modelo jerárquico de componentes, un modelo de interacción 3D y un modelo de gestión de oclusiones. Estos modelos, diseñados para organizar y procesar información de sistemas complejos, tienen como finalidad mejorar la usabilidad y adaptabilidad de las técnicas de interacción.
En conjunto, la integración de estas estrategias, modelos y técnicas proporciona un marco estructurado y versátil para mejorar la usabilidad y la interacción en entornos 3D, especialmente en sistemas complejos. Estos enfoques fueron sometidos a evaluaciones y pruebas en proyectos de investigación, demostrando su adaptabilidad y fiabilidad en diversos contextos, desde aplicaciones industriales hasta entornos web, móviles y autónomos.
González-Toledo, Daniel; Cuevas-Rodríguez, María; Molina-Tanco, Luis; Reyes-Lecuona, Arcadio
The spheroidal trackball: generalising the fixed trackball for virtual camera navigation Journal Article
In: The Visual Computer, 2024, ISSN: 1432-2315.
@article{gonzalez-toledo_spheroidal_2024,
title = {The spheroidal trackball: generalising the fixed trackball for virtual camera navigation},
author = {Daniel González-Toledo and María Cuevas-Rodríguez and Luis Molina-Tanco and Arcadio Reyes-Lecuona},
url = {https://doi.org/10.1007/s00371-023-03250-w},
doi = {10.1007/s00371-023-03250-w},
issn = {1432-2315},
year = {2024},
date = {2024-02-01},
journal = {The Visual Computer},
abstract = {Virtual trackball techniques have become a standard in 3D applications, particularly for interfaces with limited degrees of freedom such as touchscreens or mice. The fact that we are used to them does not mean that they cannot be improved upon. Recent research has highlighted the significance of considering users’ mental models of a preferred rotation axis, as it can improve performance, perceived usability and perceived workload. Building upon these findings, this paper introduces the spheroidal trackball framework—a novel method for orbiting the virtual camera around elongated objects. The paper presents the mathematical formulation and the evaluation of the technique. The formulation offers enough information to implement the approach. The evaluation shows the advantages of this approach over the fixed spherical trackball for this class of objects, in terms of task performance, usability and perceived workload. This research constitutes an advancement in the refinement of 3D user interaction techniques, opening new avenues of innovation in this still evolving field.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Virtual trackball techniques have become a standard in 3D applications, particularly for interfaces with limited degrees of freedom such as touchscreens or mice. The fact that we are used to them does not mean that they cannot be improved upon. Recent research has highlighted the significance of considering users’ mental models of a preferred rotation axis, as it can improve performance, perceived usability and perceived workload. Building upon these findings, this paper introduces the spheroidal trackball framework—a novel method for orbiting the virtual camera around elongated objects. The paper presents the mathematical formulation and the evaluation of the technique. The formulation offers enough information to implement the approach. The evaluation shows the advantages of this approach over the fixed spherical trackball for this class of objects, in terms of task performance, usability and perceived workload. This research constitutes an advancement in the refinement of 3D user interaction techniques, opening new avenues of innovation in this still evolving field.
González-Toledo, Daniel; Cuevas-Rodríguez, María; Vicente, Thibault; Picinali, Lorenzo; Molina-Tanco, Luis; Reyes-Lecuona, Arcadio
Spatial release from masking in the median plane with non-native speakers using individual and mannequin head related transfer functions Journal Article
In: The Journal of the Acoustical Society of America, vol. 155, no. 1, pp. 284-293, 2024, ISSN: 0001-4966.
@article{10.1121/10.0024239,
title = {Spatial release from masking in the median plane with non-native speakers using individual and mannequin head related transfer functions},
author = {Daniel González-Toledo and María Cuevas-Rodríguez and Thibault Vicente and Lorenzo Picinali and Luis Molina-Tanco and Arcadio Reyes-Lecuona},
url = {https://doi.org/10.1121/10.0024239},
doi = {10.1121/10.0024239},
issn = {0001-4966},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
journal = {The Journal of the Acoustical Society of America},
volume = {155},
number = {1},
pages = {284-293},
abstract = {Spatial release from masking (SRM) in speech-on-speech tasks has been widely studied in the horizontal plane, where interaural cues play a fundamental role. Several studies have also observed SRM for sources located in the median plane, where (monaural) spectral cues are more important. However, a relatively unexplored research question concerns the impact of head-related transfer function (HRTF) personalisation on SRM, for example, whether using individually-measured HRTFs results in better performance if compared with the use of mannequin HRTFs. This study compares SRM in the median plane in a speech-on-speech virtual task rendered using both individual and mannequin HRTFs. SRM is obtained using English sentences with non-native English speakers. Our participants show lower SRM performances compared to those found by others using native English participants. Furthermore, SRM is significantly larger when the source is spatialised using the individual HRTF, and this effect is more marked for those with lower English proficiency. Further analyses using a spectral distortion metric and the estimation of the better-ear effect, show that the observed SRM can only partially be explained by HRTF-specific factors and that the effect of the familiarity with individual spatial cues is likely to be the most significant element driving these results.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Spatial release from masking (SRM) in speech-on-speech tasks has been widely studied in the horizontal plane, where interaural cues play a fundamental role. Several studies have also observed SRM for sources located in the median plane, where (monaural) spectral cues are more important. However, a relatively unexplored research question concerns the impact of head-related transfer function (HRTF) personalisation on SRM, for example, whether using individually-measured HRTFs results in better performance if compared with the use of mannequin HRTFs. This study compares SRM in the median plane in a speech-on-speech virtual task rendered using both individual and mannequin HRTFs. SRM is obtained using English sentences with non-native English speakers. Our participants show lower SRM performances compared to those found by others using native English participants. Furthermore, SRM is significantly larger when the source is spatialised using the individual HRTF, and this effect is more marked for those with lower English proficiency. Further analyses using a spectral distortion metric and the estimation of the better-ear effect, show that the observed SRM can only partially be explained by HRTF-specific factors and that the effect of the familiarity with individual spatial cues is likely to be the most significant element driving these results.
Reyes-Lecuona, Arcadio; Cuevas-Rodríguez, María; González-Toledo, Daniel; Molina-Tanco, Luis; Poirier-Quinot, David; Picinali, Lorenzo
Hearing loss and hearing aid simulations for accessible user experience Proceedings Article
In: Proceedings of the XXIII International Conference on Human Computer Interaction, Association for Computing Machinery, Lleida, Spain, 2024, ISBN: 9798400707902.
@inproceedings{10.1145/3612783.3612816,
title = {Hearing loss and hearing aid simulations for accessible user experience},
author = {Arcadio Reyes-Lecuona and María Cuevas-Rodríguez and Daniel González-Toledo and Luis Molina-Tanco and David Poirier-Quinot and Lorenzo Picinali},
url = {https://doi.org/10.1145/3612783.3612816},
doi = {10.1145/3612783.3612816},
isbn = {9798400707902},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
booktitle = {Proceedings of the XXIII International Conference on Human Computer Interaction},
publisher = {Association for Computing Machinery},
address = {Lleida, Spain},
series = {Interaccion '23},
abstract = {This paper presents an open-source real-time hearing loss and hearing aids simulator implemented within the 3D Tune-In Toolkit C++ library. These simulators provide a valuable tool for improving auditory accessibility, promoting inclusivity and foster new research. The hearing loss simulator accurately simulates various types and levels of hearing loss, while the hearing aid simulator replicates different hearing aid technologies, allowing for the simulation of real-world hearing aid experiences. Both simulators are implemented to work in real-time, allowing for immediate feedback and adjustment during testing and development. As an open-source tool, the simulators can be customised and modified to meet specific needs, and the scientific community can collaborate and improve upon the algorithms. The technical details of the simulators and their implementation in the C++ library are presented, and the potential applications of the simulators are discussed, showing that they can be used as a valuable support software for UX designers to ensure the accessibility of their products to individuals with hearing impairment. Moreover, these simulators can be used to raise awareness about auditory accessibility issues. Overall, this paper also aims to provide some insight into the development and implementation of accessible technology for individuals with hearing impairments.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
This paper presents an open-source real-time hearing loss and hearing aids simulator implemented within the 3D Tune-In Toolkit C++ library. These simulators provide a valuable tool for improving auditory accessibility, promoting inclusivity and foster new research. The hearing loss simulator accurately simulates various types and levels of hearing loss, while the hearing aid simulator replicates different hearing aid technologies, allowing for the simulation of real-world hearing aid experiences. Both simulators are implemented to work in real-time, allowing for immediate feedback and adjustment during testing and development. As an open-source tool, the simulators can be customised and modified to meet specific needs, and the scientific community can collaborate and improve upon the algorithms. The technical details of the simulators and their implementation in the C++ library are presented, and the potential applications of the simulators are discussed, showing that they can be used as a valuable support software for UX designers to ensure the accessibility of their products to individuals with hearing impairment. Moreover, these simulators can be used to raise awareness about auditory accessibility issues. Overall, this paper also aims to provide some insight into the development and implementation of accessible technology for individuals with hearing impairments.
Castillo-Sánchez, José-Borja; González-Parada, Eva; Cano-García, José-Manuel
Swarm Robot Communications in ROS 2: An Experimental Study Journal Article
In: IEEE Access, vol. 12, pp. 142930-142943, 2024.
@article{10699316,
title = {Swarm Robot Communications in ROS 2: An Experimental Study},
author = {José-Borja Castillo-Sánchez and Eva González-Parada and José-Manuel Cano-García},
doi = {10.1109/ACCESS.2024.3470254},
year = {2024},
date = {2024-01-01},
journal = {IEEE Access},
volume = {12},
pages = {142930-142943},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sánchez, J. Borja Castillo; García, José M. Cano; Parada, Eva González; Nadal, Manuel Maestre
WSAN ZigBee Demonstrator Based on Commercial Home Automation Devices and Development Platforms Proceedings Article
In: 2024 XVI Congreso de Tecnología, Aprendizaje y Enseñanza de la Electrónica (TAEE), pp. 1-7, 2024.
@inproceedings{10604957,
title = {WSAN ZigBee Demonstrator Based on Commercial Home Automation Devices and Development Platforms},
author = {J. Borja Castillo Sánchez and José M. Cano García and Eva González Parada and Manuel Maestre Nadal},
doi = {10.1109/TAEE59541.2024.10604957},
year = {2024},
date = {2024-01-01},
booktitle = {2024 XVI Congreso de Tecnología, Aprendizaje y Enseñanza de la Electrónica (TAEE)},
pages = {1-7},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Galeas-Merchán, José-Miguel; Castillo-Sánchez, José-Borja; Rodríguez-Fernández, Juan-Antonio; González-García, Martín
Open Architectures (RISC-V) as Demo Platforms for Electronic Design Teaching Proceedings Article
In: 2024 XVI Congreso de Tecnología, Aprendizaje y Enseñanza de la Electrónica (TAEE), pp. 1-7, 2024.
@inproceedings{10604978,
title = {Open Architectures (RISC-V) as Demo Platforms for Electronic Design Teaching},
author = {José-Miguel Galeas-Merchán and José-Borja Castillo-Sánchez and Juan-Antonio Rodríguez-Fernández and Martín González-García},
doi = {10.1109/TAEE59541.2024.10604978},
year = {2024},
date = {2024-01-01},
booktitle = {2024 XVI Congreso de Tecnología, Aprendizaje y Enseñanza de la Electrónica (TAEE)},
pages = {1-7},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Castillo-Sánchez, José-Borja; González-Parada, Eva; Cano-García, José-Manuel
A novel testbed for evaluating ROS 2 robot swarm wireless communications Proceedings Article
In: 2024 IEEE 22nd Mediterranean Electrotechnical Conference (MELECON), pp. 68-73, 2024.
@inproceedings{10608676,
title = {A novel testbed for evaluating ROS 2 robot swarm wireless communications},
author = {José-Borja Castillo-Sánchez and Eva González-Parada and José-Manuel Cano-García},
doi = {10.1109/MELECON56669.2024.10608676},
year = {2024},
date = {2024-01-01},
booktitle = {2024 IEEE 22nd Mediterranean Electrotechnical Conference (MELECON)},
pages = {68-73},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Villa, Manny; Casilari, Eduardo
Wearable Fall Detectors Based on Low Power Transmission Systems: A Systematic Review Journal Article
In: Technologies, vol. 12, no. 9, 2024, ISSN: 2227-7080.
@article{technologies12090166,
title = {Wearable Fall Detectors Based on Low Power Transmission
Systems: A Systematic Review},
author = {Manny Villa and Eduardo Casilari},
url = {https://www.mdpi.com/2227-7080/12/9/166},
doi = {10.3390/technologies12090166},
issn = {2227-7080},
year = {2024},
date = {2024-01-01},
journal = {Technologies},
volume = {12},
number = {9},
abstract = {Early attention to individuals who suffer falls is a critical aspect when determining the consequences of such accidents, which are among the leading causes of mortality and disability in older adults. For this reason and considering the high number of older adults living alone, the development of automatic fall alerting systems has garnered significant research attention over the past decade. A key element for deploying a fall detection system (FDS) based on wearables is the wireless transmission method employed to transmit the medical alarms. In this regard, the vast majority of prototypes in the related literature utilize short-range technologies, such as Bluetooth, which must be complemented by the existence of a gateway device (e.g., a smartphone). In other studies, standards like Wi-Fi or 3G communications are proposed, which offer greater range but come with high power consumption, which can be unsuitable for most wearables, and higher service fees. In addition, they require reliable radio coverage, which is not always guaranteed in all application scenarios. An interesting alternative to these standards is Low Power Wide Area Network (LPWAN) technologies, which minimize both energy consumption and hardware costs while maximizing transmission range. This article provides a comprehensive search and review of that works in the literature that have implemented and evaluated wearable FDSs utilizing LPWAN interfaces to transmit alarms. The review systematically examines these proposals, considering various operational aspects and identifying key areas that have not yet been adequately addressed for the viable implementation of such detectors.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Early attention to individuals who suffer falls is a critical aspect when determining the consequences of such accidents, which are among the leading causes of mortality and disability in older adults. For this reason and considering the high number of older adults living alone, the development of automatic fall alerting systems has garnered significant research attention over the past decade. A key element for deploying a fall detection system (FDS) based on wearables is the wireless transmission method employed to transmit the medical alarms. In this regard, the vast majority of prototypes in the related literature utilize short-range technologies, such as Bluetooth, which must be complemented by the existence of a gateway device (e.g., a smartphone). In other studies, standards like Wi-Fi or 3G communications are proposed, which offer greater range but come with high power consumption, which can be unsuitable for most wearables, and higher service fees. In addition, they require reliable radio coverage, which is not always guaranteed in all application scenarios. An interesting alternative to these standards is Low Power Wide Area Network (LPWAN) technologies, which minimize both energy consumption and hardware costs while maximizing transmission range. This article provides a comprehensive search and review of that works in the literature that have implemented and evaluated wearable FDSs utilizing LPWAN interfaces to transmit alarms. The review systematically examines these proposals, considering various operational aspects and identifying key areas that have not yet been adequately addressed for the viable implementation of such detectors.
Casilari, Eduardo; Barbosa-Galeano, Jennifer; González-Cañete, Francisco J.
UMAHand: A dataset of inertial signals of typical hand activities Journal Article
In: Data in Brief, vol. 55, pp. 110731, 2024, ISSN: 2352-3409.
@article{CASILARI2024110731,
title = {UMAHand: A dataset of inertial signals of typical hand activities},
author = {Eduardo Casilari and Jennifer Barbosa-Galeano and Francisco J. González-Cañete},
url = {https://www.sciencedirect.com/science/article/pii/S235234092400698X},
doi = {https://doi.org/10.1016/j.dib.2024.110731},
issn = {2352-3409},
year = {2024},
date = {2024-01-01},
journal = {Data in Brief},
volume = {55},
pages = {110731},
abstract = {Given the popularity of wrist-worn devices, particularly smartwatches, the identification of manual movement patterns has become of utmost interest within the research field of Human Activity Recognition (HAR) systems. In this context, by leveraging the numerous sensors natively embedded in smartwatches, the HAR functionalities that can be implemented in a watch via software and in a very cost-efficient way cover a wide variety of applications, ranging from fitness trackers to gesture detectors aimed at disabled individuals (e.g., for sending alarms), promoting behavioral activation or healthy lifestyle habits. In this regard, for the development of artificial intelligence algorithms capable of effectively discriminating these activities, it is of great importance to have repositories of movements that allow the scientific community to train, evaluate, and benchmark new proposals of movement detectors. The UMAHand dataset offers a collection of files containing the signals captured by a Shimmer 3 sensor node, which includes an accelerometer, a gyroscope, a magnetometer and a barometer, during the execution of different typical hand movements. For that purpose, the measurements from these four sensors, gathered at a sampling rate of 100 Hz, were taken from a group of 25 volunteers (16 females and 9 males), aged between 18 and 56, during the performance of 29 daily life activities involving hand mobility. Participants wore the sensor node on their dominant hand throughout the experiments.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Given the popularity of wrist-worn devices, particularly smartwatches, the identification of manual movement patterns has become of utmost interest within the research field of Human Activity Recognition (HAR) systems. In this context, by leveraging the numerous sensors natively embedded in smartwatches, the HAR functionalities that can be implemented in a watch via software and in a very cost-efficient way cover a wide variety of applications, ranging from fitness trackers to gesture detectors aimed at disabled individuals (e.g., for sending alarms), promoting behavioral activation or healthy lifestyle habits. In this regard, for the development of artificial intelligence algorithms capable of effectively discriminating these activities, it is of great importance to have repositories of movements that allow the scientific community to train, evaluate, and benchmark new proposals of movement detectors. The UMAHand dataset offers a collection of files containing the signals captured by a Shimmer 3 sensor node, which includes an accelerometer, a gyroscope, a magnetometer and a barometer, during the execution of different typical hand movements. For that purpose, the measurements from these four sensors, gathered at a sampling rate of 100 Hz, were taken from a group of 25 volunteers (16 females and 9 males), aged between 18 and 56, during the performance of 29 daily life activities involving hand mobility. Participants wore the sensor node on their dominant hand throughout the experiments.
Silva, Carlos A.; Casilari, Eduardo; García-Bermúdez, Rodolfo
In: Data in Brief, vol. 55, pp. 110621, 2024, ISSN: 2352-3409.
@article{SILVA2024110621,
title = {UMATUG: A dataset of inertial signals of older and young adults using a gerontologic simulator collected during instrumented Timed Up and Go (iTUG) tests},
author = {Carlos A. Silva and Eduardo Casilari and Rodolfo García-Bermúdez},
url = {https://www.sciencedirect.com/science/article/pii/S2352340924005882},
doi = {https://doi.org/10.1016/j.dib.2024.110621},
issn = {2352-3409},
year = {2024},
date = {2024-01-01},
journal = {Data in Brief},
volume = {55},
pages = {110621},
abstract = {Timed Up and Go (TUG) test is one of the most popular clinical tools aimed at the assessment of functional mobility and fall risk in older adults. The automation of the analysis of TUG movements is of great medical interest not only to speed up the test but also to maximize the information inferred from the subjects under study. In this context, this article describes a dataset collected from a cohort of 69 experimental subjects (including 30 adults over 60 years), during the execution of several repetitions of the TUG test. In particular, the dataset includes the measurements gathered with four wearables devices embedding four sensors (accelerometer, gyroscope magnetometer and
barometer) located on four body locations (waist, wrist, ankle and chest). As a particularity, the dataset also includes the same measurements recorded when the young subjects repeat the test while wearing a commercial geriatric simulator, consisting of a set of weighted vests and other elements intended to replicate the limitations caused by aging. Thus, the generated dataset also enables the investigation into the potential of such tools to emulate the actual dynamics of older individuals.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Timed Up and Go (TUG) test is one of the most popular clinical tools aimed at the assessment of functional mobility and fall risk in older adults. The automation of the analysis of TUG movements is of great medical interest not only to speed up the test but also to maximize the information inferred from the subjects under study. In this context, this article describes a dataset collected from a cohort of 69 experimental subjects (including 30 adults over 60 years), during the execution of several repetitions of the TUG test. In particular, the dataset includes the measurements gathered with four wearables devices embedding four sensors (accelerometer, gyroscope magnetometer and
barometer) located on four body locations (waist, wrist, ankle and chest). As a particularity, the dataset also includes the same measurements recorded when the young subjects repeat the test while wearing a commercial geriatric simulator, consisting of a set of weighted vests and other elements intended to replicate the limitations caused by aging. Thus, the generated dataset also enables the investigation into the potential of such tools to emulate the actual dynamics of older individuals.
barometer) located on four body locations (waist, wrist, ankle and chest). As a particularity, the dataset also includes the same measurements recorded when the young subjects repeat the test while wearing a commercial geriatric simulator, consisting of a set of weighted vests and other elements intended to replicate the limitations caused by aging. Thus, the generated dataset also enables the investigation into the potential of such tools to emulate the actual dynamics of older individuals.
Silva, Carlos A.; Casilari, Eduardo; García-Bermúdez, Rodolfo
Cross-dataset evaluation of wearable fall detection systems using data from real falls and long-term monitoring of daily life Journal Article
In: Measurement, vol. 235, pp. 114992, 2024, ISSN: 0263-2241.
@article{SILVA2024114992,
title = {Cross-dataset evaluation of wearable fall detection systems using data from real falls and long-term monitoring of daily life},
author = {Carlos A. Silva and Eduardo Casilari and Rodolfo García-Bermúdez},
url = {https://www.sciencedirect.com/science/article/pii/S0263224124008777},
doi = {https://doi.org/10.1016/j.measurement.2024.114992},
issn = {0263-2241},
year = {2024},
date = {2024-01-01},
journal = {Measurement},
volume = {235},
pages = {114992},
abstract = {The evaluation of fall detection systems based on wearables is controversial as most studies in the literature benchmark their proposals against falls that are simulated by experimental subjects under unrealistic laboratory conditions. In order to systematically investigate the suitability of this procedure, this paper evaluates a wide set of artificial intelligence algorithms used for fall detection, when trained with a large number of datasets containing acceleration samples captured during the emulation of falls and ordinary movements and then tested with the signals of both actual falls and long-term traces collected from the constant monitoring of users during their daily routines. The results, based on a large number of repositories, show a remarkable degradation in all performance metrics (sensitivity, specificity and false alarm hourly rate) with respect to the typical case in which the detectors are tested with the same types of laboratory movements for which they were trained.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The evaluation of fall detection systems based on wearables is controversial as most studies in the literature benchmark their proposals against falls that are simulated by experimental subjects under unrealistic laboratory conditions. In order to systematically investigate the suitability of this procedure, this paper evaluates a wide set of artificial intelligence algorithms used for fall detection, when trained with a large number of datasets containing acceleration samples captured during the emulation of falls and ordinary movements and then tested with the signals of both actual falls and long-term traces collected from the constant monitoring of users during their daily routines. The results, based on a large number of repositories, show a remarkable degradation in all performance metrics (sensitivity, specificity and false alarm hourly rate) with respect to the typical case in which the detectors are tested with the same types of laboratory movements for which they were trained.
Casilari, Eduardo; Gonzalez-Cañete, Francisco Javier
A Smartwatch-based Approach for Oral Health Monitoring using Deep Learning Proceedings Article
In: Proceedings of the 17th International Conference on PErvasive Technologies Related to Assistive Environments, pp. 343–350, Association for Computing Machinery, Crete, Greece, 2024, ISBN: 9798400717604.
@inproceedings{10.1145/3652037.3663912,
title = {A Smartwatch-based Approach for Oral Health Monitoring using Deep Learning},
author = {Eduardo Casilari and Francisco Javier Gonzalez-Cañete},
url = {https://doi.org/10.1145/3652037.3663912},
doi = {10.1145/3652037.3663912},
isbn = {9798400717604},
year = {2024},
date = {2024-01-01},
booktitle = {Proceedings of the 17th International Conference on PErvasive Technologies Related to Assistive Environments},
pages = {343–350},
publisher = {Association for Computing Machinery},
address = {Crete, Greece},
series = {PETRA '24},
abstract = {Monitoring toothbrushing is of great importance to promote the improvement of oral health habits. In this study wearable devices and artificial intelligence methods are combined to identify tooth brushing. The focus is on utilizing convolutional neural networks to recognize brushing gestures based on short samples of accelerometer data collected from wrist-worn devices. As a benchmarking dataset, we train and test the model with a public database containing signals obtained from a wide set of experimental subjects performing a variety of different manual actions. The results show the high effectiveness of the detector, which achieves quality metrics (sensitivity and specificity) higher than 95% when it is employed to discriminate brushing actions from other 23 hand movements. This performance is improved if the architecture is refined through a simple low-pass filtering of the classifier's decisions, aimed at correcting the classification of anomalous and isolated mobility patterns.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Monitoring toothbrushing is of great importance to promote the improvement of oral health habits. In this study wearable devices and artificial intelligence methods are combined to identify tooth brushing. The focus is on utilizing convolutional neural networks to recognize brushing gestures based on short samples of accelerometer data collected from wrist-worn devices. As a benchmarking dataset, we train and test the model with a public database containing signals obtained from a wide set of experimental subjects performing a variety of different manual actions. The results show the high effectiveness of the detector, which achieves quality metrics (sensitivity and specificity) higher than 95% when it is employed to discriminate brushing actions from other 23 hand movements. This performance is improved if the architecture is refined through a simple low-pass filtering of the classifier’s decisions, aimed at correcting the classification of anomalous and isolated mobility patterns.
Olyaee, Maryam; Peña-Martín, Juan P.; Lopez-Martinez, F. J.; Romero-Jerez, Juan M.
The Multi-cluster Two-Wave Fading Model Journal Article
In: IEEE Transactions on Communications, pp. 1-1, 2024.
@article{10697184,
title = {The Multi-cluster Two-Wave Fading Model},
author = {Maryam Olyaee and Juan P. Peña-Martín and F. J. Lopez-Martinez and Juan M. Romero-Jerez},
doi = {10.1109/TCOMM.2024.3469543},
year = {2024},
date = {2024-01-01},
journal = {IEEE Transactions on Communications},
pages = {1-1},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Valle, Marta; Belloch, Jose A.; Gutierrez-Parera, Pablo; Prida, Daniel
Detección de movimientos de cabeza para la implementación de un sistema binaural en el ámbito cultural Proceedings Article
In: Tecniacústica 2024 – 55º Congreso Español De Acústica, 13 Congreso Ibérico De Acústica, pp. 513–520, Faro, Portugal, 2024.
@inproceedings{Valle2024,
title = {Detección de movimientos de cabeza para la implementación de un sistema binaural en el ámbito cultural},
author = {Marta Valle and Jose A. Belloch and Pablo Gutierrez-Parera and Daniel Prida},
year = {2024},
date = {2024-01-01},
booktitle = {Tecniacústica 2024 - 55º Congreso Español De Acústica, 13 Congreso Ibérico De Acústica},
pages = {513–520},
address = {Faro, Portugal},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Gonzalez-Toledo, Daniel; Gutierrez-Parera, Pablo; Soto-Romero, Carmen; Cuevas-Rodriguez, Maria; Reyes‐Lecuona, Arcadio
A pilot experiment on user individualization for sound localization within interactive virtual environments Proceedings Article
In: 21st EuroXR International Conference, Athens, Greece, 2024.
@inproceedings{Gonzalez-Toledo2024,
title = {A pilot experiment on user individualization for sound localization within interactive virtual environments},
author = {Daniel Gonzalez-Toledo and Pablo Gutierrez-Parera and Carmen Soto-Romero and Maria Cuevas-Rodriguez and Arcadio Reyes‐Lecuona},
doi = {10.32040/2242-122X.2024.T4232},
year = {2024},
date = {2024-01-01},
booktitle = {21st EuroXR International Conference},
address = {Athens, Greece},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Ron-Angevin, Ricardo; Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco; Lespinet-Najib, Véronique; André, Jean-Marc
In: Sensors, vol. 24, no. 11, 2024, (All Open Access, Gold Open Access, Green Open Access).
@article{Ron-Angevin2024,
title = {Evaluation of Different Types of Stimuli in an Event-Related Potential-Based Brain–Computer Interface Speller under Rapid Serial Visual Presentation},
author = {Ricardo Ron-Angevin and Álvaro Fernández-Rodríguez and Francisco Velasco-Álvarez and Véronique Lespinet-Najib and Jean-Marc André},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85195978217&doi=10.3390%2fs24113315&partnerID=40&md5=8e45210cdad07fac5074cca1e4ccbfd2},
doi = {10.3390/s24113315},
year = {2024},
date = {2024-01-01},
journal = {Sensors},
volume = {24},
number = {11},
note = {All Open Access, Gold Open Access, Green Open Access},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fernández-Rodríguez, Álvaro; Álvarez, Chloé; Langin, Celia; Velasco-Álvarez, Francisco; Letouze, Theodore; Andre, Jean-Marc; Ron-Angevin, Ricardo
Exploring the impact of stimulus transparency in ERP-BCI under RSVP Proceedings Article
In: pp. 9 – 14, 2024, (Cited by: 0; All Open Access, Green Open Access).
@inproceedings{Fernández-Rodríguez20249,
title = {Exploring the impact of stimulus transparency in ERP-BCI under RSVP},
author = {Álvaro Fernández-Rodríguez and Chloé Álvarez and Celia Langin and Francisco Velasco-Álvarez and Theodore Letouze and Jean-Marc Andre and Ricardo Ron-Angevin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85198117393&doi=10.1145%2f3652037.3652045&partnerID=40&md5=3bedfd860b26747cedd03e64e0197434},
doi = {10.1145/3652037.3652045},
year = {2024},
date = {2024-01-01},
journal = {ACM International Conference Proceeding Series},
pages = {9 – 14},
note = {Cited by: 0; All Open Access, Green Open Access},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
2023
Cuevas-Rodriguez, Maria; González-Toledo, Daniel; Gutierrez-Parera, Pablo; Reyes-Lecuona, Arcadio
An experiment replication on dynamic 3D sound loalisation using auditory Virtual Reality Proceedings Article
In: Proceedings of the 10th Convention of the European Acoustics Association, 2023.
@inproceedings{ForumAcusticum2023Experiment,
title = {An experiment replication on dynamic 3D sound loalisation using auditory Virtual Reality},
author = {Maria Cuevas-Rodriguez and Daniel González-Toledo and Pablo Gutierrez-Parera and Arcadio Reyes-Lecuona},
url = {https://dael.euracoustics.org/confs/landing_pages/fa2023/000744.html},
year = {2023},
date = {2023-09-01},
urldate = {2023-09-01},
booktitle = {Proceedings of the 10th Convention of the European Acoustics Association},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
González-Toledo, Daniel; Molina-Tanco, Luis; Cuevas-Rodríguez, María; Majdak, Piotr; Reyes-Lecuona, Arcadio
The Binaural Rendering Toolbox. A Virtual Laboratory for Reproducible Research in Psychoacoustics Proceedings Article
In: Proceedings of the 10th Convention of the European Acoustics Association, 2023.
@inproceedings{ForumAcusticum2023BRT,
title = {The Binaural Rendering Toolbox. A Virtual Laboratory for Reproducible Research in Psychoacoustics},
author = {Daniel González-Toledo and Luis Molina-Tanco and María Cuevas-Rodríguez and Piotr Majdak and Arcadio Reyes-Lecuona},
url = {https://dael.euracoustics.org/confs/landing_pages/fa2023/001042.html},
year = {2023},
date = {2023-09-01},
urldate = {2023-09-01},
booktitle = {Proceedings of the 10th Convention of the European Acoustics Association},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Peña-Martín, J. P.; García-Berdonés, C.; Doblas-Navarro, M. C.; Cáceres-Cansino, A. M.; Heredia-Sánchez, F.; Trujillo-Aguilera, F. D.
An Experience to Introduce the Planning and Time Management Competence in an Engineering Degree Proceedings Article
In: 2023 XIII International Conference on Virtual Campus (JICV), pp. 1-3, IEEE, 2023.
@inproceedings{Pena2023a,
title = {An Experience to Introduce the Planning and Time Management Competence in an Engineering Degree},
author = {J. P. Peña-Martín and C. García-Berdonés and M. C. Doblas-Navarro and A. M. Cáceres-Cansino and F. Heredia-Sánchez and F. D. Trujillo-Aguilera},
doi = {10.1109/JICV59748.2023.10565651},
year = {2023},
date = {2023-09-01},
booktitle = {2023 XIII International Conference on Virtual Campus (JICV)},
pages = {1-3},
publisher = {IEEE},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Olyaee, Maryam; Cortés, José A; Lopez-Martinez, F Javier; Paris, José F; Romero-Jerez, Juan M
The IFTR Fading Model: Statistical Characterization and Empirical Validation Proceedings Article
In: Proc. 2023 IEEE International Conference on Communications (ICC), Rome, Italy, May, 2023.
@inproceedings{olyaee2023IFTR,
title = {The IFTR Fading Model: Statistical Characterization and Empirical Validation},
author = {Maryam Olyaee and José A Cortés and F Javier Lopez-Martinez and José F Paris and Juan M Romero-Jerez},
year = {2023},
date = {2023-05-01},
booktitle = {Proc. 2023 IEEE International Conference on Communications (ICC), Rome, Italy, May},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Toledo, Daniel González; Cuevas-Rodríguez, María; Molina-Tanco, Luis; Reyes-Lecuona, Arcadio
Still room for improvement in traditional 3D interaction: selecting the fixed axis in the virtual trackball Journal Article
In: The Visual Computer, vol. 39, pp. 1149–1162, 2023.
@article{Sti/2023,
title = {Still room for improvement in traditional 3D interaction: selecting the fixed axis in the virtual trackball},
author = {Daniel González Toledo and María Cuevas-Rodríguez and Luis Molina-Tanco and Arcadio Reyes-Lecuona},
url = {https://link.springer.com/article/10.1007/s00371-021-02394-x},
doi = {10.1007/s00371-021-02394-x},
year = {2023},
date = {2023-03-01},
urldate = {2022-01-01},
journal = {The Visual Computer},
volume = {39},
pages = {1149–1162},
abstract = {Virtual trackball techniques are widely used when 3D interaction is performed through interfaces with a reduced number of degrees of freedom such as mice and touchscreens. For decades, most implementations fix a vertical axis of rotation, which is a suitable choice when the vertical axis should indeed be fixed, according to some mental model of the user. We conducted an experiment involving the use of a mouse and a touch device to study usability in terms of performance, perceived usability and mental workload when selecting different fixed axes in accordance with the user’s mental model. The results we obtained indicate that the consistency between the axis fixed by the technique and the object’s intrinsic axis has a positive effect on usability. We believe that implementations that allow to select different fixed axis for each specific object should be considered when designing future reduced-DoF interaction interfaces.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Virtual trackball techniques are widely used when 3D interaction is performed through interfaces with a reduced number of degrees of freedom such as mice and touchscreens. For decades, most implementations fix a vertical axis of rotation, which is a suitable choice when the vertical axis should indeed be fixed, according to some mental model of the user. We conducted an experiment involving the use of a mouse and a touch device to study usability in terms of performance, perceived usability and mental workload when selecting different fixed axes in accordance with the user’s mental model. The results we obtained indicate that the consistency between the axis fixed by the technique and the object’s intrinsic axis has a positive effect on usability. We believe that implementations that allow to select different fixed axis for each specific object should be considered when designing future reduced-DoF interaction interfaces.
Montalvo-Gallego, M. Blanca; Artero-Flores, Javier; Cajigal-García, Alberto; Reyes-Lecuona, Arcadio; Florido-Becerra, Sergio; Navarrete-Gálvez, Juan José
Experimentos de vista y oído, para una pieza de arte sonoro. Proceedings Article
In: Actas del XXIII Congreso Internacional de Interacción Persona-Ordenador: INTERACCIÓN 2023, pp. 78–85, 2023.
@inproceedings{montalvo2023experimentos,
title = {Experimentos de vista y oído, para una pieza de arte sonoro.},
author = {M. Blanca Montalvo-Gallego and Javier Artero-Flores and Alberto Cajigal-García and Arcadio Reyes-Lecuona and Sergio Florido-Becerra and Juan José Navarrete-Gálvez},
url = {https://interaccion2023.udl.cat/wp-content/uploads/2023/09/Libro_de_Actas_INTERACCCION_2023_LLEIDA_v1.pdf},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
booktitle = {Actas del XXIII Congreso Internacional de Interacción Persona-Ordenador: INTERACCIÓN 2023},
pages = {78–85},
abstract = {Presentamos la versión 3.0 del proyecto en proceso Imagen imperfecta. A través de esta investigación exploramos la visión periférica del individuo, que se encuentra en los límites de la percepción visual. En esta última versión, además, incorporamos a la experimentación un sistema de audio 3D binaural. Esta implementación redirige la investigación, lo que nos desplaza del arte electrónico al arte sonoro. Para llevar a cabo este proyecto, rediseñamos un prototipo de casco de visión periférica para su acoplamiento a unos auriculares de diadema que el usuario ha de portar para transitar la obra: una instalación compuesta por paneles LEDs animados. Por último, nos planteamos una serie de mejoras técnicas (reducción de cableado, baterías, ergonomía del casco) que permitan ofrecer una experiencia óptima al usuario, al tiempo que analizamos las variaciones generadas en el proyecto, a nivel técnico, perceptual y conceptual.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Presentamos la versión 3.0 del proyecto en proceso Imagen imperfecta. A través de esta investigación exploramos la visión periférica del individuo, que se encuentra en los límites de la percepción visual. En esta última versión, además, incorporamos a la experimentación un sistema de audio 3D binaural. Esta implementación redirige la investigación, lo que nos desplaza del arte electrónico al arte sonoro. Para llevar a cabo este proyecto, rediseñamos un prototipo de casco de visión periférica para su acoplamiento a unos auriculares de diadema que el usuario ha de portar para transitar la obra: una instalación compuesta por paneles LEDs animados. Por último, nos planteamos una serie de mejoras técnicas (reducción de cableado, baterías, ergonomía del casco) que permitan ofrecer una experiencia óptima al usuario, al tiempo que analizamos las variaciones generadas en el proyecto, a nivel técnico, perceptual y conceptual.
Peña-Martín, Juan P.; García-Berdonés, Carmen
Proyecto de desarrollo integrado de competencias transversales en un grado de ingeniería: diseño Proceedings Article
In: XXX Congreso Universitario de Innovación Educativa en las Enseñanzas Técnicas (CUIEET’30), Cartagena 19-21 de julio de 2023, 2023.
@inproceedings{4756814,
title = {Proyecto de desarrollo integrado de competencias transversales en un grado de ingeniería: diseño},
author = {Juan P. Peña-Martín and Carmen García-Berdonés},
doi = {https://hdl.handle.net/10630/27365},
year = {2023},
date = {2023-01-01},
booktitle = {XXX Congreso Universitario de Innovación Educativa en las Enseñanzas Técnicas (CUIEET’30), Cartagena 19-21 de julio de 2023},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Lamsal, Ritu Raj; Karthikeyan, P.; Otero, Pablo; Ariza, Alfonso
Design and Implementation of Internet of Things (IoT) Platform Targeted for Smallholder Farmers: From Nepal Perspective Journal Article
In: Agriculture, vol. 13, no. 10, 2023, ISSN: 2077-0472.
@article{agriculture13101900,
title = {Design and Implementation of Internet of Things (IoT) Platform Targeted for Smallholder Farmers: From Nepal Perspective},
author = {Ritu Raj Lamsal and P. Karthikeyan and Pablo Otero and Alfonso Ariza},
url = {https://www.mdpi.com/2077-0472/13/10/1900},
doi = {10.3390/agriculture13101900},
issn = {2077-0472},
year = {2023},
date = {2023-01-01},
journal = {Agriculture},
volume = {13},
number = {10},
abstract = {Nepal, a lower-middle-income country in South Asia, predominantly features smallholder farming communities operating on modest land holdings. These smallholders often adhere to traditional farming methods, relying on familial labor, which has become increasingly inefficient in contemporary agricultural landscapes. To enhance their productivity and efficiency, smallholder farmers require affordable and accessible Internet of Things (IoT)-based systems. However, the prevailing IoT solutions in the market primarily cater to large-scale commercial enterprises, rendering them unsuitable for the specific needs and constraints faced by smallholder farmers. In response to this gap, we have introduced a cost-effective, customizable, scalable, and dependable IoT platform tailored expressly for smallholder farmers. This platform empowers them to visualize, monitor, and control real-time data pertaining to their crops, livestock, and other agricultural assets. To ascertain the efficacy and suitability of our proposed platform, we conducted a comparative analysis with existing counterparts such as Blynk IoT and ThingSpeak IoT, evaluating their respective features and application services against standard requirements. Additionally, we subjected our platform to rigorous server load testing, assessing crucial performance parameters including throughput, response time, user capacity, and data sampling rates. Over an observation period spanning an average of 339 days, our platform successfully processed and stored a substantial volume of data, encompassing 817,633 sensor messages, averaging 2412 messages per day, with a cumulative storage size of 14,238.28 KB. Extrapolating from these results, it is noteworthy that an A0 instance with 20 GB of cloud space can adequately accommodate 200 users at a rate of 100 MB per user, which is adequate for the smallholder needs. Furthermore, the purposed platform was deployed inside a polyhouse to perform off-season grafting of citrus plants. The achieved success rate of 84% closely approached the success rate of 90-95% observed during on-season grafting. These empirical findings, coupled with the extensive data gathered during our research, underscore the reliability and performance of our proposed IoT platform for smallholder farmers.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nepal, a lower-middle-income country in South Asia, predominantly features smallholder farming communities operating on modest land holdings. These smallholders often adhere to traditional farming methods, relying on familial labor, which has become increasingly inefficient in contemporary agricultural landscapes. To enhance their productivity and efficiency, smallholder farmers require affordable and accessible Internet of Things (IoT)-based systems. However, the prevailing IoT solutions in the market primarily cater to large-scale commercial enterprises, rendering them unsuitable for the specific needs and constraints faced by smallholder farmers. In response to this gap, we have introduced a cost-effective, customizable, scalable, and dependable IoT platform tailored expressly for smallholder farmers. This platform empowers them to visualize, monitor, and control real-time data pertaining to their crops, livestock, and other agricultural assets. To ascertain the efficacy and suitability of our proposed platform, we conducted a comparative analysis with existing counterparts such as Blynk IoT and ThingSpeak IoT, evaluating their respective features and application services against standard requirements. Additionally, we subjected our platform to rigorous server load testing, assessing crucial performance parameters including throughput, response time, user capacity, and data sampling rates. Over an observation period spanning an average of 339 days, our platform successfully processed and stored a substantial volume of data, encompassing 817,633 sensor messages, averaging 2412 messages per day, with a cumulative storage size of 14,238.28 KB. Extrapolating from these results, it is noteworthy that an A0 instance with 20 GB of cloud space can adequately accommodate 200 users at a rate of 100 MB per user, which is adequate for the smallholder needs. Furthermore, the purposed platform was deployed inside a polyhouse to perform off-season grafting of citrus plants. The achieved success rate of 84% closely approached the success rate of 90–95% observed during on-season grafting. These empirical findings, coupled with the extensive data gathered during our research, underscore the reliability and performance of our proposed IoT platform for smallholder farmers.
Sharifian, Zakieh; Barekatain, Behrang; Quintana, Alfonso Ariza; Beheshti, Zahra; Safi-Esfahani, Faramarz
In: Expert Systems with Applications, vol. 228, pp. 120404, 2023, ISSN: 0957-4174.
@article{SHARIFIAN2023120404,
title = {Sin-Cos-bIAVOA: A new feature selection method based on improved African vulture optimization algorithm and a novel transfer function to DDoS attack detection},
author = {Zakieh Sharifian and Behrang Barekatain and Alfonso Ariza Quintana and Zahra Beheshti and Faramarz Safi-Esfahani},
url = {https://www.sciencedirect.com/science/article/pii/S0957417423009065},
doi = {https://doi.org/10.1016/j.eswa.2023.120404},
issn = {0957-4174},
year = {2023},
date = {2023-01-01},
journal = {Expert Systems with Applications},
volume = {228},
pages = {120404},
abstract = {Internet of Things (IoT) services and devices have raised numerous challenges such as connectivity, computation, and security. Therefore, networks should provide and maintain quality services. Nowadays, Distributed Denial-of-Service (DDoS) attack is the most important network attacks according to recent studies. Among the variety of DDoS detection methods, Machine Learning (ML) algorithms have attracted researchers. In ML, the selection of optimal subset of features can have a significant role to enhance the classification rate. This problem called the feature selection problem is in the class of NP-hard problems and exact algorithms cannot obtain the best results in acceptable time. Therefore, approximate algorithms like meta-heuristic algorithms are employed to solve the problem. Since these algorithms do not search all solution space, they fall in local optima and provide a premature convergence rate. Several methods have been introduced so far to address these challenges but researchers try to find new strategies for enhancing the performance of methods. In this study, a binary Improved African Vulture Optimization Algorithm (Sin-Cos-bIAVOA) is proposed to select effective features of DDoS attacks. The method applies a novel compound transfer function (Sin-Cos) to increase exploration. To select the optimal subset of features, Gravitational Fixed Radius Nearest Neighbor (GFRNN) is employed as the classifier in the method. Moreover, AVOA is improved in three phases including exploration, balancing exploration and exploitation, and exploitation phases. Hence, Sin-Cos-bIAVOA explores promising areas to achieve the best solution and avoid the local optima traps. The proposed method’s performance is compared with some recent state-of-the-art in two datasets, CIC-DDOS2019 and NSL-KDD for the DDoS attack detection. The experiment results show that the proposed method achieves the minimum feature selection rate (0.0184) with the high average accuracy (99.9979%), precision (99.9979%), recall (100.00%), and F-measure (99.9989%) compared with competitors in the first scenario with 1% attack rate in CIC-DDOS2019 dataset. In addition, the results of Friedman test based on fitness functions indicate that Sin-Cos-bIAVOA has the first rank among comparative algorithms. The source code of Sin-Cos-bIAVOA is publicly available at https://www.mathworks.com/matlabcentral/fileexchange/129409-sin-cos-biavoa-a-new-feature-selection-method.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Internet of Things (IoT) services and devices have raised numerous challenges such as connectivity, computation, and security. Therefore, networks should provide and maintain quality services. Nowadays, Distributed Denial-of-Service (DDoS) attack is the most important network attacks according to recent studies. Among the variety of DDoS detection methods, Machine Learning (ML) algorithms have attracted researchers. In ML, the selection of optimal subset of features can have a significant role to enhance the classification rate. This problem called the feature selection problem is in the class of NP-hard problems and exact algorithms cannot obtain the best results in acceptable time. Therefore, approximate algorithms like meta-heuristic algorithms are employed to solve the problem. Since these algorithms do not search all solution space, they fall in local optima and provide a premature convergence rate. Several methods have been introduced so far to address these challenges but researchers try to find new strategies for enhancing the performance of methods. In this study, a binary Improved African Vulture Optimization Algorithm (Sin-Cos-bIAVOA) is proposed to select effective features of DDoS attacks. The method applies a novel compound transfer function (Sin-Cos) to increase exploration. To select the optimal subset of features, Gravitational Fixed Radius Nearest Neighbor (GFRNN) is employed as the classifier in the method. Moreover, AVOA is improved in three phases including exploration, balancing exploration and exploitation, and exploitation phases. Hence, Sin-Cos-bIAVOA explores promising areas to achieve the best solution and avoid the local optima traps. The proposed method’s performance is compared with some recent state-of-the-art in two datasets, CIC-DDOS2019 and NSL-KDD for the DDoS attack detection. The experiment results show that the proposed method achieves the minimum feature selection rate (0.0184) with the high average accuracy (99.9979%), precision (99.9979%), recall (100.00%), and F-measure (99.9989%) compared with competitors in the first scenario with 1% attack rate in CIC-DDOS2019 dataset. In addition, the results of Friedman test based on fitness functions indicate that Sin-Cos-bIAVOA has the first rank among comparative algorithms. The source code of Sin-Cos-bIAVOA is publicly available at https://www.mathworks.com/matlabcentral/fileexchange/129409-sin-cos-biavoa-a-new-feature-selection-method.
Otero, Pablo; Hernández-Romero, Álvaro; Luque-Nieto, Miguel-Ángel; Ariza, Alfonso
Underwater Positioning System Based on Drifting Buoys and Acoustic Modems Journal Article
In: Journal of Marine Science and Engineering, vol. 11, no. 4, 2023, ISSN: 2077-1312.
@article{jmse11040682,
title = {Underwater Positioning System Based on Drifting Buoys and Acoustic Modems},
author = {Pablo Otero and Álvaro Hernández-Romero and Miguel-Ángel Luque-Nieto and Alfonso Ariza},
url = {https://www.mdpi.com/2077-1312/11/4/682},
doi = {10.3390/jmse11040682},
issn = {2077-1312},
year = {2023},
date = {2023-01-01},
journal = {Journal of Marine Science and Engineering},
volume = {11},
number = {4},
abstract = {GNSS (Global Navigation Satellite System) positioning is not available underwater due to the very short range of electromagnetic waves in the sea water medium. In this article a LBL (Long Base Line) acoustic repeater system of the GNSS positioning is presented. The system is hyperbolic, i.e., based on time differences and it does not need very accurate atomic clocks to synchronize repeaters. The system architecture and system calculations that demonstrate the feasibility of the solution are presented. The system uses four buoys that sequentially transmit their position and the time of the instant of transmission, for which they are equipped with GNSS receivers and acoustic modems. The buoys can be fixed or even drifting, but they are inexpensive devices, which pose no hazard to navigation and can be easily and quickly deployed for a specific underwater mission. The multilateration algorithm used in the receiver is presented. To simplify the algorithm, the depth of the receiver, measured by a depth sensor, is used. Results are presented for the position error of an underwater vehicle due to its displacement during the transmission frame of the four buoys.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
GNSS (Global Navigation Satellite System) positioning is not available underwater due to the very short range of electromagnetic waves in the sea water medium. In this article a LBL (Long Base Line) acoustic repeater system of the GNSS positioning is presented. The system is hyperbolic, i.e., based on time differences and it does not need very accurate atomic clocks to synchronize repeaters. The system architecture and system calculations that demonstrate the feasibility of the solution are presented. The system uses four buoys that sequentially transmit their position and the time of the instant of transmission, for which they are equipped with GNSS receivers and acoustic modems. The buoys can be fixed or even drifting, but they are inexpensive devices, which pose no hazard to navigation and can be easily and quickly deployed for a specific underwater mission. The multilateration algorithm used in the receiver is presented. To simplify the algorithm, the depth of the receiver, measured by a depth sensor, is used. Results are presented for the position error of an underwater vehicle due to its displacement during the transmission frame of the four buoys.
Ron-Angevin, Ricardo; Fernández-Rodríguez, Álvaro; Dupont, Clara; Maigrot, Jeanne; Meunier, Juliette; Tavard, Hugo; Lespinet-Najib, Véronique; André, Jean-Marc
Comparison of Two Paradigms Based on Stimulation with Images in a Spelling Brain–Computer Interface Journal Article
In: Sensors, vol. 23, no. 3, 2023, ISSN: 14248220.
@article{Ron-Angevin2023,
title = {Comparison of Two Paradigms Based on Stimulation with Images in a Spelling Brain–Computer Interface},
author = {Ricardo Ron-Angevin and Álvaro Fernández-Rodríguez and Clara Dupont and Jeanne Maigrot and Juliette Meunier and Hugo Tavard and Véronique Lespinet-Najib and Jean-Marc André},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147923784&doi=10.3390%2fs23031304&partnerID=40&md5=0f5fe843d93e8501ee978763220e27e1},
doi = {10.3390/s23031304},
issn = {14248220},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Sensors},
volume = {23},
number = {3},
publisher = {MDPI},
abstract = {A P300-based speller can be used to control a home automation system via brain activity. Evaluation of the visual stimuli used in a P300-based speller is a common topic in the field of brain–computer interfaces (BCIs). The aim of the present work is to compare, using the usability approach, two types of stimuli that have provided high performance in previous studies. Twelve participants controlled a BCI under two conditions, which varied in terms of the type of stimulus employed: a red famous face surrounded by a white rectangle (RFW) and a range of neutral pictures (NPs). The usability approach included variables related to effectiveness (accuracy and information transfer rate), efficiency (stress and fatigue), and satisfaction (pleasantness and System Usability Scale and Affect Grid questionnaires). The results indicated that there were no significant differences in effectiveness, but the system that used NPs was reported as significantly more pleasant. Hence, since satisfaction variables should also be considered in systems that potential users are likely to employ regularly, the use of different NPs may be a more suitable option than the use of a single RFW for the development of a home automation system based on a visual P300-based speller. © 2023 by the authors.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A P300-based speller can be used to control a home automation system via brain activity. Evaluation of the visual stimuli used in a P300-based speller is a common topic in the field of brain–computer interfaces (BCIs). The aim of the present work is to compare, using the usability approach, two types of stimuli that have provided high performance in previous studies. Twelve participants controlled a BCI under two conditions, which varied in terms of the type of stimulus employed: a red famous face surrounded by a white rectangle (RFW) and a range of neutral pictures (NPs). The usability approach included variables related to effectiveness (accuracy and information transfer rate), efficiency (stress and fatigue), and satisfaction (pleasantness and System Usability Scale and Affect Grid questionnaires). The results indicated that there were no significant differences in effectiveness, but the system that used NPs was reported as significantly more pleasant. Hence, since satisfaction variables should also be considered in systems that potential users are likely to employ regularly, the use of different NPs may be a more suitable option than the use of a single RFW for the development of a home automation system based on a visual P300-based speller. © 2023 by the authors.
Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo; Velasco-Álvarez, Francisco; Diaz-Pineda, Jaime; Letouzé, Théodore; André, Jean-Marc
Evaluation of Single-Trial Classification to Control a Visual ERP-BCI under a Situation Awareness Scenario Journal Article
In: Brain Sciences, vol. 13, no. 6, 2023, ISSN: 20763425.
@article{Fernández-Rodríguez2023,
title = {Evaluation of Single-Trial Classification to Control a Visual ERP-BCI under a Situation Awareness Scenario},
author = {Álvaro Fernández-Rodríguez and Ricardo Ron-Angevin and Francisco Velasco-Álvarez and Jaime Diaz-Pineda and Théodore Letouzé and Jean-Marc André},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163969490&doi=10.3390%2fbrainsci13060886&partnerID=40&md5=43795c68f8e86133ee9694be1f604516},
doi = {10.3390/brainsci13060886},
issn = {20763425},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Brain Sciences},
volume = {13},
number = {6},
publisher = {MDPI},
abstract = {An event-related potential (ERP)-based brain–computer interface (BCI) can be used to monitor a user’s cognitive state during a surveillance task in a situational awareness context. The present study explores the use of an ERP-BCI for detecting new planes in an air traffic controller (ATC). Two experiments were conducted to evaluate the impact of different visual factors on target detection. Experiment 1 validated the type of stimulus used and the effect of not knowing its appearance location in an ERP-BCI scenario. Experiment 2 evaluated the effect of the size of the target stimulus appearance area and the stimulus salience in an ATC scenario. The main results demonstrate that the size of the plane appearance area had a negative impact on the detection performance and on the amplitude of the P300 component. Future studies should address this issue to improve the performance of an ATC in stimulus detection using an ERP-BCI. © 2023 by the authors.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
An event-related potential (ERP)-based brain–computer interface (BCI) can be used to monitor a user’s cognitive state during a surveillance task in a situational awareness context. The present study explores the use of an ERP-BCI for detecting new planes in an air traffic controller (ATC). Two experiments were conducted to evaluate the impact of different visual factors on target detection. Experiment 1 validated the type of stimulus used and the effect of not knowing its appearance location in an ERP-BCI scenario. Experiment 2 evaluated the effect of the size of the target stimulus appearance area and the stimulus salience in an ATC scenario. The main results demonstrate that the size of the plane appearance area had a negative impact on the detection performance and on the amplitude of the P300 component. Future studies should address this issue to improve the performance of an ATC in stimulus detection using an ERP-BCI. © 2023 by the authors.
Ron-Angevin, Ricardo; Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco; Lespinet-Najib, Véronique; André, Jean-Marc
Usability of three software platforms for modifying graphical layout in visual P300-based brain-computer interface Journal Article
In: Biomedical Signal Processing and Control, vol. 86, no. 3, 2023, ISSN: 17468094.
@article{Ron-Angevin2023b,
title = {Usability of three software platforms for modifying graphical layout in visual P300-based brain-computer interface},
author = {Ricardo Ron-Angevin and Álvaro Fernández-Rodríguez and Francisco Velasco-Álvarez and Véronique Lespinet-Najib and Jean-Marc André},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85169902364&doi=10.1016%2fj.bspc.2023.105326&partnerID=40&md5=748249dc39b1ae49e362818c249cf223},
doi = {10.1016/j.bspc.2023.105326},
issn = {17468094},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Biomedical Signal Processing and Control},
volume = {86},
number = {3},
publisher = {Elsevier Ltd},
abstract = {Individuals afflicted by neurodegenerative conditions such as amyotrophic lateral sclerosis may eventually reach a point where they lose the ability to communicate with the outside world through conventional muscular pathways. In these cases, brain-computer interfaces (BCIs) can be a suitable alternative, as they directly transform brain activity into external commands. A P300-based speller is a BCI for communication purposes. The most popular software platforms used to develop spellers are BCI2000 and Open-ViBE. However, these platforms can be relatively complex to set up without advanced technical knowledge. For this reason, the UMA-BCI Speller platform was recently developed, intended to facilitate the control of the system. Hence, the objective of this research was to assess and compare the user-friendliness of the three platforms put forth. A group of fifteen participants were tasked with configuring a designated speller layout using the three platforms. The findings acquired demonstrated that the UMA-BCI Speller platform exhibited the utmost level of usability, as it required the shortest time to complete the tasks and received the best feedback in the questionnaires. Overall, there was no difference between the BCI2000 and Open-ViBE platforms. In short, the UMA-BCI Speller offered the best usability and showed itself to be an easy application to use that provides many options to configure a speller graphical layout. © 2023 The Authors},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Individuals afflicted by neurodegenerative conditions such as amyotrophic lateral sclerosis may eventually reach a point where they lose the ability to communicate with the outside world through conventional muscular pathways. In these cases, brain-computer interfaces (BCIs) can be a suitable alternative, as they directly transform brain activity into external commands. A P300-based speller is a BCI for communication purposes. The most popular software platforms used to develop spellers are BCI2000 and Open-ViBE. However, these platforms can be relatively complex to set up without advanced technical knowledge. For this reason, the UMA-BCI Speller platform was recently developed, intended to facilitate the control of the system. Hence, the objective of this research was to assess and compare the user-friendliness of the three platforms put forth. A group of fifteen participants were tasked with configuring a designated speller layout using the three platforms. The findings acquired demonstrated that the UMA-BCI Speller platform exhibited the utmost level of usability, as it required the shortest time to complete the tasks and received the best feedback in the questionnaires. Overall, there was no difference between the BCI2000 and Open-ViBE platforms. In short, the UMA-BCI Speller offered the best usability and showed itself to be an easy application to use that provides many options to configure a speller graphical layout. © 2023 The Authors
Velasco-Álvarez, Francisco; Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo
Home automation system controlled through a brain-computer interface; [Sistema domótico controlado a través de una interfaz cerebro-ordenador] Journal Article
In: RIAI – Revista Iberoamericana de Automatica e Informatica Industrial, vol. 20, no. 2, pp. 224 – 235, 2023, ISSN: 16977912.
@article{Velasco-Álvarez2023224,
title = {Home automation system controlled through a brain-computer interface; [Sistema domótico controlado a través de una interfaz cerebro-ordenador]},
author = {Francisco Velasco-Álvarez and Álvaro Fernández-Rodríguez and Ricardo Ron-Angevin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163181095&doi=10.4995%2friai.2023.18718&partnerID=40&md5=88092eee53668ddddc58f099301eef88},
doi = {10.4995/riai.2023.18718},
issn = {16977912},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {RIAI - Revista Iberoamericana de Automatica e Informatica Industrial},
volume = {20},
number = {2},
pages = {224 – 235},
publisher = {Universidad Politecnica de Valencia.},
abstract = {Brain-computer interface (BCI) technology permits brain activity to be used as a communication channel without the usage of muscular action in order to control a computer or different devices, such as a home automation system. Nevertheless, BCI systems have proven to be difficult to adapt to handle external equipment. The objective of this work is to control a home automation system through a BCI that allows the construction of voice commands, which are interpreted by a virtual assistant. The suggested system has been tested by twelve participants. WhatsApp, Spotify, Google Nest, a smart light bulb, a smart plug (to switch on/off a radio), and an infrared controller (to control a TV and an air conditioner) were among the devices operated. The results obtained have shown that the proposed BCI was effective for the control of a flexible home automation system that can be adapted to the needs of the users. © 2023 Universitat Politecnica de Valencia. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Brain-computer interface (BCI) technology permits brain activity to be used as a communication channel without the usage of muscular action in order to control a computer or different devices, such as a home automation system. Nevertheless, BCI systems have proven to be difficult to adapt to handle external equipment. The objective of this work is to control a home automation system through a BCI that allows the construction of voice commands, which are interpreted by a virtual assistant. The suggested system has been tested by twelve participants. WhatsApp, Spotify, Google Nest, a smart light bulb, a smart plug (to switch on/off a radio), and an infrared controller (to control a TV and an air conditioner) were among the devices operated. The results obtained have shown that the proposed BCI was effective for the control of a flexible home automation system that can be adapted to the needs of the users. © 2023 Universitat Politecnica de Valencia. All rights reserved.
Galeas-Merchán, Jose M.; García-Berdonés, Carmen; Ruiz-García, Margarita
Cuéntame un cuento: concurso de diseño digital Proceedings Article
In: XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET, Cartagena, 2023.
@inproceedings{Galeas-Merchan2023,
title = {Cuéntame un cuento: concurso de diseño digital},
author = {Jose M. Galeas-Merchán and Carmen García-Berdonés and Margarita Ruiz-García},
year = {2023},
date = {2023-01-01},
booktitle = {XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET},
address = {Cartagena},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Ruiz-García, Margarita; Galeas-Merchán, Jose M.; García-Berdonés, Carmen
Escalando la muralla de los subsistemas analógicos Proceedings Article
In: XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET, Cartagena, 2023.
@inproceedings{Ruiz-Garcia2023,
title = {Escalando la muralla de los subsistemas analógicos},
author = {Margarita Ruiz-García and Jose M. Galeas-Merchán and Carmen García-Berdonés},
year = {2023},
date = {2023-01-01},
booktitle = {XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET},
address = {Cartagena},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Olyaee, Maryam; Eslami, Mohsen; Navaie, Keivan; Romero-Jerez, Juan M; Hashemi, Hadi; Haghighat, Javad; Bahmanpour, Mohamad
Analysis of the Effect of Sand and Dust Storms (SDSs) and Rain on the Performance of Cellular Networks in the Millimeter Wave Band Journal Article
In: IEEE Access, vol. 11, pp. 69252–69262, 2023.
@article{olyaee2023analysis,
title = {Analysis of the Effect of Sand and Dust Storms (SDSs) and Rain on the Performance of Cellular Networks in the Millimeter Wave Band},
author = {Maryam Olyaee and Mohsen Eslami and Keivan Navaie and Juan M Romero-Jerez and Hadi Hashemi and Javad Haghighat and Mohamad Bahmanpour},
url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=10168836},
year = {2023},
date = {2023-01-01},
journal = {IEEE Access},
volume = {11},
pages = {69252–69262},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Olyaee, Maryam; Romero-Jerez, Juan M; Eslami, Mohsen; Hashemi, Hadi
Effect of Sand and Dust Storms on the Coverage of Cellular Networks in the Millimeter Wave Band Proceedings Article
In: Proc. IEEE International Mediterranean Conference on Communications and Networking (MeditCom), Dubrovnik, Croacia, Sep., 2023.
@inproceedings{olyaee2023Effect,
title = {Effect of Sand and Dust Storms on the Coverage of Cellular Networks in the Millimeter Wave Band},
author = {Maryam Olyaee and Juan M Romero-Jerez and Mohsen Eslami and Hadi Hashemi},
year = {2023},
date = {2023-01-01},
booktitle = {Proc. IEEE International Mediterranean Conference on Communications and Networking (MeditCom), Dubrovnik, Croacia, Sep.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
González-Cañete, F. J.; García, M. Ruiz
La caza de fantasmas con Karnaugh Proceedings Article
In: 2023.
@inproceedings{gonzalezcanete2023caza,
title = {La caza de fantasmas con Karnaugh},
author = {F. J. González-Cañete and M. Ruiz García},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {XXX CONGRESO UNIVERSITARIO DE INNOVACIÓN EDUCATIVA EN LAS ENSEÑANZAS TÉCNICAS (CUIEET'30)},
abstract = {En el presente artículo se describe una experiencia realizada en una asignatura básica relativa al diseño con circuitos digitales. La experiencia pretende acercar al alumnado de forma entretenida mediante gamificación la resolución de un problema de diseño digital basado en sensores y actuadores, pero con una perspectiva descriptiva y de contexto divertida. Los resultados obtenidos han sido satisfactorios según la opinión del alumnado objetivo de la experiencia.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
En el presente artículo se describe una experiencia realizada en una asignatura básica relativa al diseño con circuitos digitales. La experiencia pretende acercar al alumnado de forma entretenida mediante gamificación la resolución de un problema de diseño digital basado en sensores y actuadores, pero con una perspectiva descriptiva y de contexto divertida. Los resultados obtenidos han sido satisfactorios según la opinión del alumnado objetivo de la experiencia.
Castillo-Sánchez, José Borja; Cano-García, José Manuel; González-Parada, Eva
Desarrollo de un proyecto de tutorización y orientación profesional en el Grado en Ingeniería de Sistemas electrónicos Proceedings Article
In: XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET, Cartagena, 2023.
@inproceedings{Castillo-sanchez2023,
title = {Desarrollo de un proyecto de tutorización y orientación profesional en el Grado en Ingeniería de Sistemas electrónicos},
author = {José Borja Castillo-Sánchez and José Manuel Cano-García and Eva González-Parada},
doi = {https://hdl.handle.net/10630/27368},
year = {2023},
date = {2023-01-01},
booktitle = {XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET},
address = {Cartagena},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
González-Parada, Eva; García-Berdonés, Carmen; Castillo-Sánchez, José Borja
Volver a los 17, el reto del profesor tutor en las enseñanzas de ingeniería Proceedings Article
In: XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET, Cartagena, 2023.
@inproceedings{Gonzalez-Parada2023,
title = {Volver a los 17, el reto del profesor tutor en las enseñanzas de ingeniería},
author = {Eva González-Parada and Carmen García-Berdonés and José Borja Castillo-Sánchez},
doi = {https://hdl.handle.net/10630/27367},
year = {2023},
date = {2023-01-01},
booktitle = {XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET},
address = {Cartagena},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Cano-García, José Manuel; González-Parada, Eva; Castillo-Sánchez, José Borja
Emulación de dispositivos I2C para formación a distancia en sistemas empotrados basados en microcontroladores Proceedings Article
In: XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET, Cartagena, 2023.
@inproceedings{Cano-Garcia2023,
title = {Emulación de dispositivos I2C para formación a distancia en sistemas empotrados basados en microcontroladores},
author = {José Manuel Cano-García and Eva González-Parada and José Borja Castillo-Sánchez},
doi = {https://hdl.handle.net/10630/27366},
year = {2023},
date = {2023-01-01},
booktitle = {XXX Congreso de Innovación Educativa en las Enseñanzas Técnicas, 30 CUIEET},
address = {Cartagena},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Galeas-Merchán, José-Miguel; Castillo-Sánchez, José-Borja; González-García, Martín
Simplifying RTL design and verification in chip manufacturing: A paradigm for Electronics Teaching using Open-Source tools Proceedings Article
In: 2023 38th Conference on Design of Circuits and Integrated Systems (DCIS), pp. 1-6, 2023.
@inproceedings{10335966,
title = {Simplifying RTL design and verification in chip manufacturing: A paradigm for Electronics Teaching using Open-Source tools},
author = {José-Miguel Galeas-Merchán and José-Borja Castillo-Sánchez and Martín González-García},
doi = {10.1109/DCIS58620.2023.10335966},
year = {2023},
date = {2023-01-01},
booktitle = {2023 38th Conference on Design of Circuits and Integrated Systems (DCIS)},
pages = {1-6},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
2022
Reyes-Lecuona, Arcadio; Bouchara, Tifanie; Picinali, Lorenzo
Immersive Sound for XR Book Chapter
In: Alcañiz, Jolanda G. Tromp Marco Sacco Mariano (Ed.): Chapter 4, Wiley, 2022, ISBN: 9781119865148.
@inbook{Imm/2022,
title = {Immersive Sound for XR},
author = {Arcadio Reyes-Lecuona and Tifanie Bouchara and Lorenzo Picinali},
editor = {Jolanda G. Tromp Marco Sacco Mariano Alcañiz},
url = {https://onlinelibrary.wiley.com/doi/10.1002/9781119865810.ch4},
doi = {10.1002/9781119865810.ch4},
isbn = {9781119865148},
year = {2022},
date = {2022-07-01},
urldate = {2022-07-01},
publisher = {Wiley},
chapter = {4},
abstract = {Sound plays a very important role in everyday life as well as in XR applications, as it will be explained in this chapter. Recent advances and challenges in immersive audio research are presented, discussing how, why, and to which extent there is potential for further development of these technologies applied to XR. The fundamentals of immersive audio rendering for XR are introduced before presenting the main technological challenges still open in the area. Finally, a series of future applications is presented, which the authors envision being examples of the potential of immersive audio in XR, and a research roadmap is outlined.},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}
Sound plays a very important role in everyday life as well as in XR applications, as it will be explained in this chapter. Recent advances and challenges in immersive audio research are presented, discussing how, why, and to which extent there is potential for further development of these technologies applied to XR. The fundamentals of immersive audio rendering for XR are introduced before presenting the main technological challenges still open in the area. Finally, a series of future applications is presented, which the authors envision being examples of the potential of immersive audio in XR, and a research roadmap is outlined.
Gutierrez-Parera, Pablo; Lopez, Jose J.; Mora-Merchan, Javier M.; Larios, Diego F.
Interaural time difference individualization in HRTF by scaling through anthropometric parameters Journal Article
In: EURASIP Journal on Audio, Speech, and Music Processing, vol. 2022, no. 9, 2022, ISSN: 1687-4722.
@article{Gutierrez-Parera2022,
title = {Interaural time difference individualization in HRTF by scaling through anthropometric parameters},
author = {Pablo Gutierrez-Parera and Jose J. Lopez and Javier M. Mora-Merchan and Diego F. Larios},
url = {https://asmp-eurasipjournals.springeropen.com/articles/10.1186/s13636-022-00241-y},
doi = {10.1186/s13636-022-00241-y},
issn = {1687-4722},
year = {2022},
date = {2022-05-01},
journal = {EURASIP Journal on Audio, Speech, and Music Processing},
volume = {2022},
number = {9},
keywords = {},
pubstate = {published},
tppubtype = {article}
}