L. Xie, R. Yan, J. Yang, Multi-concept Learning with Large-scale Multimedia Lexicon. Proc. IEEE International Conference on Image Processing (ICIP 2008), San Diego, California, USA, October 2008. (PDF|POSTER)

J. He, S.-F. Chang, L. Xie, Fast Kernel Learning for Spatial Pyramid Matching. Proc. IEEE International Conference on Computer Vision and Pattern Recognition (CVPR 2008), Anchorage, Alaska, USA, June 2008. (ABSTRACT|PDF)

L. Xie, H. Sundaram, M. Campbell, Event Mining in Multimedia Streams. Proceedings of the IEEE, v96, no4, pages 623-647, April 2008 (ABSTRACT|PDF)

L. Xie, R. Yan, Extracting Semantics from Multimedia Content: Challenges and Solutions. Book Chapter, in Multimedia Content Analysis:Theory and Applications, A. Divakaran Ed., Springer, 2008. (BOOKLINK|PDF)

A. Natsev, W. Jiang, M. Merler, J. R. Smith, J. Tesic, L. Xie and R. Yan IBM Research TRECVID-2008 Video Retrieval System. Proc. TREC Video Retrieval Workshop, Gaithersburg, MD, November 2008 (PDF)

L. Liu, L. Xie, D. J. Lan, P. N. Liu, R. Moulic, SpotSmart: A Mobile Shopping Assistant. ACM Mobicom 2008 Demo, San Franscisco, USA, Sept 2008

A. Natsev, A. Haubold, J Tesic, L. Xie, R. Yan, Semantic Concept-based Query Expansion and Re-ranking for Multimedia Retrieval. Proc. ACM Multimedia (ACM-MM 2007), Augsburg, Germany, October 2007. (ABSTRACT | PDF)

A. Zunjarwad, H. Sundaram, L. Xie, Contextual Wisdom: Social Relations and Correlations for Multimedia Event Annotation. Proc. ACM Multimedia (ACM-MM 2007), Augsburg, Germany, October 2007. (ABSTRACT | PDF)

L. Xie, A. Natsev, J. Tesic, Dynamic Multimodal Fusion in Video Search. Proc. IEEE Intl. Conf. on Multimedia and Expo (ICME) 2007, Beijing, China, July 2007. (ABSTRACT |PDF|SLIDES)

J. Tesic, A. Natsev, L. Xie, J. R. Smith, Data Modeling Strategies for Imbalanced Learning in Visual Search. Proc. IEEE Intl. Conf. on Multimedia and Expo (ICME) 2007, Beijing, China, July 2007. (ABSTRACT|PDF|SLIDES)

B. Shevade, H. Sundaram, L. Xie, Modeling Personal and Social Network Context for Event Annotation in Images. Proc. ACM/IEEE Joint Conf. on Digital Libraries (JCDL) 2007, June 2007, Vancouver, Canada. (ABSTRACT|PDF) [best student paper award]

B. Shevade, H. Sundaram, L. Xie, Exploiting Personal And Social Network Context For Event Annotation.. Proc. IEEE Intl. Conf. on Multimedia and Expo (ICME) 2007, Beijing, China, July 2007. (preliminary version of the above)

M. Campbell, A. Haubold, M. Liu, A. Natsev, J.R. Smith, J. Tesic, L. Xie, R. Yan and J. Yang, IBM Research TRECVID-2007 Video Retrieval System. Proc. TREC Video Retrieval Workshop, Gaithersburg, MD, November 2007 (PDF)

L. Xie, D. Xu, S. Ebadollahi, K. Scheinberg, S.-F. Chang, J. R. Smith. Detecting Generic Visual Events with Temporal Cues. Proc. 40th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, October 2006. (ABSTRACT|PDF)

L. Xie, S.-F. Chang, Pattern Mining In Visual Concept Streams. Proc. IEEE International Conference on Multimedia and Expo (ICME 06), Toronto, Canada, 2006. (ABSTRACT|PDF|SLIDES)

S. Ebadollahi, L. Xie, S.-F. Chang, J. R. Smith Visual Event Detection Using Multi-Dimensional Concept Dynamics. Proc. IEEE International Conference on Multimedia and Expo (ICME 06), Toronto, Canada, 2006. (ABSTRACT|PDF)

M. Campbell, S. Ebadollahi, A. Haubold, D. Joshi, M. Naphade, A. Natsev, J. Seidl, J. R. Smith, K. Scheinberg, J. Tesic and L. Xie IBM Research TRECVID-2006 Video Retrieval System. Proc. TREC Video Retrieval Workshop, Gaithersburg, MD, November 2006 (PDF)

T.-T. Ng, S.-F. Chang, Y.-F. Hsu, L. Xie, M.-P. Tsui. Physics-Motivated Features for Distinguishing Photographic Images and Computer Graphics. ACM Multimedia, Singapore, November 2005. (ABSTRACT | PDF) [best student paper award]

L. Xie, L. Kennedy, S.-F. Chang, A. Divakaran, H. Sun, C.-Y. Lin, Layered Dynamic Mixture Model for Pattern Discovery in Asynchronous Multi-modal Streams. Proc. International Conference on Acoustic, Speech and Signal Processing (ICASSP) 2005. (ABSTRACT | PDF)

L. Xie, Unsupervised Pattern Discovery for Multimedia Sequences. Graduate School of Arts and Sciences, Coumbia University, August 2005. (Abstract-HTML | PDF)

Y. Wang, L. Xie, S.-F. Chang, VisGenie: a Generic Video Visualization System.. Columbia University ADVENT Technical Report #210-2005-4, 2005. (ABSTRACT | PDF | PROJ PAGE)

S.-F. Chang, W. Hsu, L. Kennedy, L. Xie, A. Yanagawa, E. Zavesky, D.-Q. Zhang Columbia University TRECVID-2005 Video Search and High-Level Feature Extraction. Proc. TREC Video Retrieval Workshop, Gaithersburg, MD, November 2005. (PDF)

L. Xie, L. Kennedy, S.-F. Chang, A. Divakaran, H. Sun, C.-Y. Lin, Discover meaningful multimedia patterns with audio-visual concepts and associated text. IEEE International Conference on Image Processing (ICIP), Singapore, October 2004. (ABSTRACT | PDF) [best student paper award]

L. Xie, P. Pérez, Slightly Supervised Learning of Part-Based Appearance Models. IEEE CVPR Workshop on Learning in Computer Vision and Pattern Recognition, Washington D. C, June 2004. (ABSTRACT | PDF)

L. Xie, P. Xu, S.-F. Chang, A. Divakaran, H. Sun Structure Analysis of Soccer Video with Domain Knowledge and Hidden Markov Models.. Pattern Recognition Letters, 25(7):767-775, May 2004 (ABSTRACT | PDF)

L. Xie, S.-F. Chang, A. Divakaran, H. Sun, Unsupervised Mining of Statistical Temporal Structures in Video. In Video Mining, A. Rosenfeld, D. Doremann, D. Dementhon (eds.), Chap. 10, Kluwer Academic Publishers, 2003. (ABSTRACT | PDF)

L. Xie, S.-F. Chang, A. Divakaran, H. Sun, Feature Selection for Unsupervised Discovery of Statistical Temporal Structures in Video. In IEEE International Conference on Image Processing (ICIP), Barcelona, Spain, September 2003. (ABSTRACT | PDF)

L. Xie, S.-F. Chang, A. Divakaran, H. Sun, Unsupervised Discovery of Multilevel Statistical Video Structures Using Hierarchical Hidden Markov Models. In IEEE International Conference on Multimedia and Expo (ICME), Baltimore, MD, July 2003. (ABSTRACT | PDF)

H. Sundaram, L. Xie, S.-F. Chang, A Utility Framework for the Automatic Generation of Audio-Visual Skims. ACM Multimedia, Juan Les Pins, France, December 2002. (ABSTRACT | PDF)

L. Xie, S.-F. Chang, A. Divakaran, H. Sun, Structure Analysis of Soccer Video with Hidden Markov Models. In IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP-2002), Orlando, FL, May 2002 (ABSTRACT | PDF)

L. Xie, S.-F. Chang, A. Divakaran, H. Sun, Learning Hierarchical Hidden Markov Models for Video Structure Discovery. Advent Technical Report Columbia University, December 2002. (ABSTRACT | PDF)

L. Xie, K. Maeno, Q. Sun, C.-Y. Lin, S.-F. Chang. Benchmarking for SARI Image Authentication System. ADVENT Technical Report, Nov. 2002 Columbia University, November 2002. (ABSTRACT | PDF)

P. Xu, L. Xie, S.-F. Chang, A. Divakaran, A. Vetro, H. Sun, Algorithms and Systems for Segmentation and Structure Analysis in Soccer Video. In IEEE International Conference on Multimedia and Expo (ICME), Tokyo, Japan, August 2001. (ABSTRACT | PDF)