CONF Varadarajan_INTERNATIONALCONFERENCEINCOMPUTERVISION_2009/IDIAP Topic Models for Scene Analysis and Abnormality Detection Varadarajan, Jagannadan Odobez, Jean-Marc EXTERNAL http://publications.idiap.ch/attachments/papers/2009/Varadarajan_INTERNATIONALCONFERENCEINCOMPUTERVISION_2009.pdf PUBLIC IEEE - 9th International Workshop in Visual Surveillance Kyoto, Japan 2009 IEEE October 2009