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Persoonlijk profiel


“I always believe opening my eyes to see different worlds will encourage me to think about things that better our life.”

Research profile

Xi Long is Assistant Professor in the Signal Processing Systems group, where he advises, coordinates and participates in many collaborative projects (with, for example, Philips, Maxima Medical Center, Kempenhaeghe, UMC Utrecht, KU Leuven, Fudan University and others) combining signal processing, data analysis, and healthcare.

Long’s expertise is in signal processing, time series analysis, machine learning, data analytics, deep learning and mathematical modeling. His research interests include engineering for biomedical applications such as unobtrusive sensing, patient monitoring, vital signs monitoring, sleep, physical activity, perinatal and pregnancy monitoring, cardiorespiratory dynamics, psycho-physiological analysis, epilepsy, and brain activity.

In addition, Long has published over 80 scientific articles and reports, generated more than 20 IPs or patent filings and supervised more than 15 PhD or MSc students. He is a peer reviewer of more than 20 prestigious international journals/conferences in his research areas.

Academic background

Xi Long holds a BSc with honor in Electronic Information Engineering from Zhejiang University (China) and obtained his MSc in Electrical Engineering from Eindhoven University of Technology (TU/e) in 2009. He worked at Philips as a researcher from 2008 to 2009 and at Tencent (China) as project manager and UX engineer from 2009 to 2011. He then went on to do his PhD at TU/e and Philips Research, on signal processing and machine learning in unobtrusive sleep monitoring, which he completed cum laude in 2015. Long currently wears several hats: he is a Senior Scientist and Lead FCS Data Analytics Cluster at Philips Research, a Project Coordinator at Maxima Medical Center and UMC Utrecht, and an Assistant Professor at TU/e.

Opleiding / Academische kwalificatie

Doctor, Technische Universiteit Eindhoven


Master, Technische Universiteit Eindhoven


Bachelor, Zhejiang University


Externe posities

Senior Scientist, Philips Research

2016 → …

Vingerafdruk Duik in de onderzoeksthema's waar Xi Long actief is. Deze onderwerplabels komen voort uit het werk van deze persoon. Samen vormen ze een unieke vingerafdruk.

Sleep Medicijnen en Levenswetenschappen
Electrocardiography Engineering en materiaalwetenschappen
Sleep Stages Medicijnen en Levenswetenschappen
Electroencephalography Engineering en materiaalwetenschappen
Classifiers Engineering en materiaalwetenschappen
Actigraphy Medicijnen en Levenswetenschappen
Photoplethysmography Engineering en materiaalwetenschappen
Premature Infants Medicijnen en Levenswetenschappen

Netwerk Recente externe samenwerking op landenniveau. Duik in de details door op de stippen te klikken.

Onderzoeksoutput 2009 2020

13 Citaties (Scopus)

EEG analysis of seizure patterns using visibility graphs for detection of generalized seizures

Wang, L., Long, X., Arends, J. B. A. M. & Aarts, R. M., 1 okt 2017, In : Journal of Neuroscience Methods. 290, blz. 85-94 10 blz.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Intellectual Disability
23 Citaties (Scopus)

Unobtrusive sleep state measurements in preterm infants - A review

Werth, J. V. S. W., Atallah, L., Andriessen, P., Long, X., Zwartkruis-Pelgrim, E. & Aarts, R. M., 2017, In : Sleep Medicine Reviews. 32, blz. 109-122 14 blz.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Premature Infants
4 Citaties (Scopus)

Hybrid optical unobtrusive blood pressure measurements

Zhang, G., Shan, C., Kirenko, I., Long, X. & Aarts, R. M., 1 jul 2017, In : Sensors. 17, 7, blz. 1-15 15 blz., 1541

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
blood pressure
Blood pressure
pressure measurement
Pressure measurement
11 Citaties (Scopus)

Time delay between cardiac and brain activity during sleep transitions

Long, X., Arends, J. B. A. M., Aarts, R. M., Haakma, R., Fonseca, P. & Rolink, J., 2015, In : Applied Physics Letters. 106, 14, blz. 143702-1/4 4 blz., 143702

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Open Access
time lag
eye movements
46 Citaties (Scopus)

Sleep and wake classification with actigraphy and respiratory effort using dynamic warping

Long, X., Fonseca, P., Foussier, J., Haakma, R. & Aarts, R. M., 2014, In : IEEE Journal of Biomedical and Health Informatics. 18, 4, blz. 1272-1284 13 blz.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Healthy Volunteers


An unobtrusive surrogate blood pressure measurement by a camera and a contact sensor

Auteur: Zhang, G., 27 okt 2016

Begeleider: Long, X. (Afstudeerdocent 1) & Shan, C. (Externe coach)

Scriptie/masterproef: Master

Baby cry detection based on audio signals using deep neural networks

Auteur: Xie, J., 29 apr 2019

Begeleider: Long, X. (Afstudeerdocent 1)

Scriptie/masterproef: Master

Exploring a novel telescoping visibility graph methodology in physiological time series analysis

Auteur: Du, H., 31 jan 2019

Begeleider: Long, X. (Afstudeerdocent 1)

Scriptie/masterproef: Master

Feature extraction for deep sleep detection

Auteur: Yang, J., 31 aug 2013

Begeleider: Long, X. (Afstudeerdocent 1), Haakma, R. (Externe coach), Calders, T. (Afstudeerdocent 2), Hoang, T. (Afstudeerdocent 2) & Serebrenik, A. (Afstudeerdocent 2)

Scriptie/masterproef: Master