BBNVISER : BBN VISER TRECVID 2012 Multimedia Event Detection and Multimedia Event Recounting Systems. - Pradeep Natarajan; Prem Natarajan; Shuang Wu 003; Xiaodan Zhuang; Amelio Vázquez Reina; Shiv Vitaladevuni; Kleovoulos Tsourides; Carl Andersen 001; Rohit Prasad; Guangnan Ye; Dong Liu 001; Shih-Fu Chang; et al. (TRECVID, 2012)