Ruofei Zhang Ramesh Sarukkai Jyh-Herng Chow Wei Dai Zhongfei Zhang Joint categorization of queries and clips for web-based video search. 193-202 2006 conf/mir/2006 Multimedia Information Retrieval http://doi.acm.org/10.1145/1178677.1178705 db/conf/mir/mir2006.html#ZhangSCDZ06