Michael S. Ryoo: Publications

• M. S. Ryoo and J. K Aggarwal, "Human Activities: Handling Uncertainties Using Fuzzy Time Intervals", International Conference on Pattern Recognition (ICPR), Tampa, FL, December 2008 (to appear).
• M. S. Ryoo and J. K. Aggarwal, "Observe-and-Explain: A New Approach for Multiple Hypotheses Tracking of Humans and Objects", IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Anchorage, AK, June 2008. pdf i-Lids_example_video CAVIAR_example_video
• M. S. Ryoo and J. K. Aggarwal, "Recognition of High-level Group Activities Based on Activities of Individual Members", Proceedings of IEEE Workshop on Motion and Video Computing (WMVC), Copper Mountain, CO, January 2008. pdf IEEE_link example_video1 example_video2
• J. T. Lee, M. S. Ryoo, M. Riley, and J. K. Aggarwal, "Real-time Detection of Illegally Parked Vehicles using 1-D Transformation", Proceedings of IEEE International Conference on Advanced Video and Signal based Surveillance (AVSS), London, UK, September 2007. pdf or IEEE_link
• M. Bhargava, C.-C. Chen, M. S. Ryoo, and J. K. Aggarwal, "Detection of Abandoned Objects in Crowded Environments", Proceedings of IEEE International Conference on Advanced Video and Signal based Surveillance (AVSS), London, UK, September 2007. pdf or IEEE_link
• M. S. Ryoo and J. K. Aggarwal, "Hierarchical Recognition of Human Activities Interacting with Objects", 2nd International Workshop on Semantic Learning Applications in Multimedia (SLAM), in Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Minneapolis, MN, June 2007. pdf or IEEE_link
• M. S. Ryoo and J. K. Aggarwal, "Robust Human-Computer Interaction System Guiding a User by Providing Feedback", Proceedings of International Joint Conference on Artificial Intelligence (IJCAI), Hyderabad, India, January 2007. pdf
• M. S. Ryoo and J. K. Aggarwal, "Semantic Understanding of Continued and Recursive Human Activities", Proceedings of 18th International Conference on Pattern Recognition (ICPR), Vol. 1, pp. 379~382, Hong Kong, August 2006. pdf or IEEE_link
• M. S. Ryoo and J. K. Aggarwal, "Recognition of Composite Human Activities through Context-Free Grammar based Representation", Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Vol. 2, pp. 1709-1719, New York, NY, June 2006. pdf or IEEE_link
• H. S. Yang, Y. Seo, M. S. Ryoo, and H. Jung, "Affective Communication System with Emotional Memories for Multimodal Interaction with Humanoids", Proceedings of the 11th international conference on virtual systems and multimedia (VSMM), October 2005.
• D. Pardoe, M. Ryoo, and R. Miikkulainen, "Evolving Neural Network Ensembles for Control Problems", Proceedings of the Genetic and Evolutionary Computation Conference (GECCO), June 2005. link
• M. S. Ryoo, Y. Seo, H. Jung, and H. S. Yang, "Affective Dialogue Communication System with Emotional Memories for Humanoid Robots", Proceedings of the First International Conference on Affective Computing and Intelligent Interaction (ACII), LNCS 3784, pp. 819-827, 2005. pdf
• H. Jung, Y. Seo, M. S. Ryoo, and H. S. Yang, "Affective Communication System with Multimodality for Humanoid Robot AMI", IEEE-RAS/RSJ International Conference on Humanoid Robots (Humanoids), 2004. pdf

• M. S. Ryoo and J. K Aggarwal, "Semantic Representation and Recognition of Continued and Recursive Human Activities", International Journal of Computer Vision (IJCV) under revision.
• M. S. Ryoo, K. Grauman, and J. K. Aggarwal, "Task-aware Intelligent Workspace System Providing Guidance Feedback", submitted to Computer Vision and Image Understanding (CVIU) special issue on Intelligent Vision Systems.
• J. K. Aggarwal and M. S. Ryoo, "Human Activity Analysis: A Review", submitted to ACM Computing Surveys.
• M. Bhargava, C.-C. Chen, M. S. Ryoo, and J. K. Aggarwal, "Detection of Object Abandonment Using Temporal Logic," Machine Vision and Applications (MVA) accepted.
• J. T. Lee, M. S. Ryoo, M. Riley, and J. K. Aggarwal, "Real-time Detection of Illegally Parked Vehicles using 1-D Transformation", submitted to IEEE Transactions on Circuits and Systems for Video Technology (T-CSVT) special issue on Event Analysis in Videos.

• M. S. Ryoo, "Semantic Representation and Recognition of Human Activities", Ph. D. Thesis, Track of Computer Engineering, Department of ECE, The University of Texas at Austin, August 2008.
• M. S. Ryoo, "Semantic Understanding of Continued and Recursive Activities using Context-Free Grammar", M. S. Thesis, Track of Computer Engineering, Department of ECE, The University of Texas at Austin, August 2006 (nominated for the Outstanding Thesis Award).
• M. S. Ryoo, "Affective Dialogue Communication System with Emotional Memories for Humanoid Robots", B. S. Thesis, Division of Computer Science, Department of EECS, KAIST, June 2004.