prof.dr. J.N. Kok (Joost)

About Me

My research is concentrated around data. My main research themes are data science and artificial intelligence . My main application areas are currently in Health, Sports & Movement, Biodiversity and Citizen Science.


Concept Drift
Data Distribution
Data Management
Data Streams
Novelty Detection
Engineering & Materials Science
Data Streams


Eichengreen, A., Tsou, Y.-T., Nasri, M., van Klaveren, L.-M., Li, B., Koutamanis, A. , Baratchi, M., Blijd-Hoogewys, E. , Kok, J., & Rieffe, C. (2023). Social connectedness at the playground before and after COVID-19 school closure. Journal of applied developmental psychology, 87, Article 101562. https://doi.org/10.1016/j.appdev.2023.101562
Dearo Garcia, K. (2021). Unsupervised learning approaches for non-stationary data streams. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036551601
Dearo Garcia, K. , Rebelo de Sá, C. , Poel, M., Carvalho, T., Mendes-Moreira, J., Cardoso, J. M. P., de Carvalho, A. C. P. L. F. , & Kok, J. N. (2021). An Ensemble of Autonomous Auto-Encoders for Human Activity Recognition. Neurocomputing, 439, 271-280. https://doi.org/10.1016/j.neucom.2020.01.125
Garcia, K. D., de Faria, E. R. , de Sá, C. R., Mendes-Moreira, J., Aggarwal, C. C., de Carvalho, A. C. P. L. F. , & Kok, J. N. (2019). Ensemble Clustering for Novelty Detection in Data Streams. In P. Kralj Novak, S. Džeroski, & T. Šmuc (Eds.), Discovery Science : 22nd International Conference, DS 2019, Splitm, Croatia, October 28-30, 2019. Proceedings (pp. 460-470). (Lecture Notes in Artificial Intelligence; subseries of Lecture Notes in Computer Science; Vol. 11828 LNAI). Springer. https://doi.org/10.1007/978-3-030-33778-0_34
Garcia, K. D. , Poel, M. , Kok, J. N., & de Carvalho, A. C. P. L. F. (2019). Online Clustering for Novelty Detection and Concept Drift in Data Streams. In P. Moura Oliveira, P. Novais, & L. P. Reis (Eds.), Progress in Artificial Intelligence: 19th EPIA Conference on Artificial Intelligence, EPIA 2019, Vila Real, Portugal, September 3–6, 2019, Proceedings (pp. 448-459). (Lecture Notes in Computer Science; Vol. 11805), (Lecture Notes in Artificial Intelligence), (Lecture Notes in Bioinformatics). Springer. https://doi.org/10.1007/978-3-030-30244-3_37

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Contact Details

Visiting Address

University of Twente
Drienerlolaan 5
7522 NB Enschede
The Netherlands

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Mailing Address

University of Twente
P.O. Box 217
7500 AE Enschede
The Netherlands