REPORT Emonet_Idiap-RR-21-2013/IDIAP Unsupervised Methods for Activity Analysis and Detection of Abnormal Events Emonet, Remi Odobez, Jean-Marc EXTERNAL https://publications.idiap.ch/attachments/reports/2012/Emonet_Idiap-RR-21-2013.pdf PUBLIC Idiap-RR-21-2013 2013 Idiap May 2013