Dhiraj Joshi Ritendra Datta Ziming Zhuang W. P. Weiss Marc Friedenberg Jia Li James Ze Wang PARAgrab: A Comprehensive Architecture for Web Image Management and Multimodal Querying. 1163-1166 2006 conf/vldb/2006 VLDB http://www.vldb.org/conf/2006/p1163-joshi.pdf db/conf/vldb/vldb2006.html#JoshiDZWFLW06