- Statistical machine learning, probabilistic graphical model, time series, mixture model, content-based image retrieval, computer vision, etc.
- F. Jing, L. Chen, L. Zhang and W.-Y. Ma. Normalizing content ratings of content forums, US20070174865 A1, 2007.
- L. Chen, D. Barber and J. Odobe. Dynamical Dirichlet mixture model, IDIAP-RR, 2007. Source code available here.
- L. Chen, L. Zhang, F. Jing, K. Deng and W.-Y. Ma. Ranking web objects from multiple communities. ACM 14th Conference on Information and Knowledge Management (CIKM), 2006, 377-386.
- L. Zhang, L. Chen, F. Jing, K. Deng and W.-Y. Ma. EnjoyPhoto: a vertical image search engine for enjoying high-quality photos. ACM Multimedia, 2006.
- X. Li, L. Chen, L. Zhang, F. Lin and W.-Y. Ma. Image annotation by large-scale content-based image retrieval. ACM Multimedia, 2006.
- D. Wang, D. Ding, L. Chen, S. Zhang, F. Lin, B. Zhang. Two kinds of timing cues and their usage in concept detection in news video, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2005.
- L. Chen, D. Ding, D. Wang, F. Lin and B. Zhang. AP-based Borda voting method for feature extraction in trecvid-2004. In: Losada D.E., Fernandez-Luna J.M. (eds) Advances in Information Retrieval. ECIR 2005. Lecture Notes in Computer Science, vol 3408. Springer, Berlin, Heidelberg, 2005.
- D. Ding, L. Chen, B. Zhang. Temporal shot clustering analysis for video concept detection. In: Losada D.E., Fernandez-Luna J.M. (eds) Advances in Information Retrieval. ECIR 2005. Lecture Notes in Computer Science, vol 3408. Springer, Berlin, Heidelberg, 2005.