What the Heart Can(not) Tell: Potential and Pitfalls of Biometric Recognition Methods Based on Photoplethysmography
Lidia Alecci, Matías Laporte, Leonardo Alchieri, Nouran Abdalazim, and Silvia Santini. 2025. What the Heart Can(not) Tell: Potential and Pitfalls of Biometric Recognition Methods Based on Photoplethysmography. Sensors 25, no. 24: 7586. https://doi.org/10.3390/s25247586
Robust PPG Authentication: The Role of Temporal, Individual, and State Variability
Lidia Alecci, Alessandro Zanzi, Matías Laporte, Leonardo Alchieri, Nouran Abdalazim, Giovanni De Felice, and Silvia Santini. 2025. Robust PPG Authentication: The Role of Temporal, Individual, and State Variability. In Companion of the 2025 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp Companion '25), October 12-16, 2025, Espoo, Finland. ACM, New York, NY, USA, 8 pages. https://doi.org/10.1145/3714394.3756172
Mitigating Interpersonal Variability in Machine Learning Models for Human Behavior Monitoring
Lidia Alecci. 2025. Mitigating Interpersonal Variability in Machine Learning Models for Human Behavior Monitoring. In Companion of the 2025 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp Companion '25), October 12-16, 2025, Espoo, Finland. ACM, New York, NY, USA, 5 pages. https://doi.org/10.1145/3714394.3750544
Exploring Generalist Foundation Models for Time Series of Electrodermal Activity Data
Leonardo Alchieri, Lino Candian, Nouran Abdalazim, Lidia Alecci, Giovanni De Felice, and Silvia Santini. 2025. Exploring Generalist Foundation Models for Time Series of Electrodermal Activity Data. In Companion of the 2025 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp Companion '25), October 12-16, 2025, Espoo, Finland. ACM, New York, NY, USA, 8 pages. https://doi.org/10.1145/3714394.3756186
Blue Mondays and Happy Meals: Investigating the Impact of Contextual Factors on Mood States
Nouran Abdalazim, Leonardo Alchieri, Lidia Alecci, Giovanni De Felice, and Silvia Santini. 2025. Blue Mondays and Happy Meals: Investigating the Impact of Contextual Factors on Mood States. In Companion of the 2025 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp Companion '25), October 12-16, 2025, Espoo, Finland. ACM, New York, NY, USA, 9 pages. https://doi.org/10.1145/3714394.3756182
The Impact of Domain Shift on Predicting Perceived Sleep Quality from Wearables
Abdalazim, Nouran, Leonardo Alchieri, Lidia Alecci, Pietro Barbiero, and Silvia Santini. 2025. “The Impact of Domain Shift on Predicting Perceived Sleep Quality from Wearables.” Sensors 25 (13): 4012. https://doi.org/10.3390/s25134012.
Lateralization Effects in Electrodermal Activity Data Collected Using Wearable Devices
Alchieri, Leonardo, Nouran Abdalazim, Lidia Alecci, Shkurta Gashi, Martin Gjoreski, and Silvia Santini. “Lateralization Effects in Electrodermal Activity Data Collected Using Wearable Devices.” Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 8, no. 1 (March 6, 2024): 2:1-2:30. https://doi.org/10.1145/3643541.
A multi-sensor fusion method for stress recognition
Alchieri, Leonardo, Nouran Abdalazim, Lidia Alecci, Silvia Santini, and Shkurta Gashi. 2024. “A Multi-Sensor Fusion Method for Stress Recognition.” In Human Activity and Behavior Analysis. CRC Press.
Enhancing XGBoost with Heuristic Smoothing for Transportation Mode and Activity Recognition
Lidia, Alecci, Leonardo Alchieri, Nouran Abdalazim, Pietro Barbiero, Silvia Santini, and Martin Gjoreski. 2023. In Adjunct Proceedings of the 2023 ACM International Joint Conference on Pervasive and Ubiquitous Computing & the 2023 ACM International Symposium on Wearable Computing (UbiComp/ISWC '23 Adjunct). Association for Computing Machinery, New York, NY, USA, 540‐545. https://doi.org/10.1145/3594739.3610752
Recognition of Engagement from Electrodermal Activity Data Across Different Contexts
Alchieri, Leonardo, Lidia Alecci, Nouran Abdalazim, and Silvia Santini. “Recognition of Engagement from Electrodermal Activity Data Across Different Contexts.” In Adjunct Proceedings of the 2023 ACM International Joint Conference on Pervasive and Ubiquitous Computing & the 2023 ACM International Symposium on Wearable Computing, 108-12. UbiComp/ISWC '23 Adjunct. New York, NY, USA: Association for Computing Machinery, 2023. https://doi.org/10.1145/3594739.3610701.
Prediction of upper limb chorea severity using passive monitoring smartwatch motion sensor data in individuals with Huntington's disease
Lidia, Alecci, Jonas Dorn, Florian Lipsmeier, Johannes Rennig, Atieh Bamdadian, Fiona Kinsella, Peter McColgan, Michael Lindemann, Edward J Wild and Cedric Simillion. 2023. CHDI 2023 Poster (Roche).
BiHeartS: Bilateral Heart Rate from Multiple Devices and Body Positions for Sleep Measurement Dataset
Abdalazim, Nouran, Leonardo Alchieri, Lidia Alecci, and Silvia Santini. “BiHeartS: Bilateral Heart Rate from Multiple Devices and Body Positions for Sleep Measurement Dataset.” arXiv, August 13, 2023. https://doi.org/10.48550/arXiv.2308.06811.
Heart Rate During Sleep Measured Using Finger-, Wrist- and Chest-Worn Devices: A Comparison Study
Abdalazim, Nouran, Joseba Aitzol Arbilla Larraza, Leonardo Alchieri, Lidia Alecci, Silvia Santini, and Shkurta Gashi. “Heart Rate During Sleep Measured Using Finger-, Wrist- and Chest-Worn Devices: A Comparison Study.” In Pervasive Computing Technologies for Healthcare, edited by Athanasios Tsanas and Andreas Triantafyllidis, 18-32. Cham: Springer Nature Switzerland, 2023. https://doi.org/10.1007/978-3-031-34586-9_2.
On the mismatch between measured and perceived sleep quality
Lidia, Alecci, Nouran Abdalazim, Leonardo Alchieri, Shkurta Gashi, and Silvia Santini. 2022. In Proceedings of the 2022 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp/ISWC '22 Adjunct), September 11-15, 2022, Cambridge, United Kingdom. ACM, New York, NY, USA, 7 pages. https://doi.org/10.1145/3544793.3563412
On the Impact of Lateralization in Physiological Signals from Wearable Sensors
Alchieri, Leonardo, Nouran Abdalazim, Lidia Alecci, Shkurta Gashi, Elena Di Lascio, and Silvia Santini. “On the Impact of Lateralization in Physiological Signals from Wearable Sensors.” In Adjunct Proceedings of the 2022 ACM International Joint Conference on Pervasive and Ubiquitous Computing and the 2022 ACM International Symposium on Wearable Computers, 472-77. UbiComp/ISWC '22 Adjunct. New York, NY, USA: Association for Computing Machinery, 2023. https://doi.org/10.1145/3544793.3563427.
Handling Missing Data For Sleep Monitoring Systems
Gashi, Shkurta, Lidia Alecci, Martin Gjoreski, Elena Di Lascio, Abhinav Mehrotra, Mirco Musolesi, Maike E. Debus, Francesca Gasparini, and Silvia Santini. “Handling Missing Data For Sleep Monitoring Systems.” In 2022 10th International Conference on Affective Computing and Intelligent Interaction (ACII), 1-8, 2022. https://doi.org/10.1109/ACII55700.2022.9953832.
The Role of Model Personalization for Sleep Stage and Sleep Quality Recognition Using Wearables
Gashi, Shkurta, Lidia Alecci, Elena Di Lascio, Maike E. Debus, Francesca Gasparini, and Silvia Santini. “The Role of Model Personalization for Sleep Stage and Sleep Quality Recognition Using Wearables.” IEEE Pervasive Computing 21, no. 2 (April 2022): 69-77. https://doi.org/10.1109/MPRV.2022.3164334.
Robust recognition of sleep behavior using wearable sensors
Lidia Alecci. 2021. Robust recognition of sleep behavior using wearable sensors. Master's Thesis. Università degli studi di Milano-Bicocca and Universtià della Svizzera italiana (USI).