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Web and Mobile Data Management, invited talk, Hong Kong Baptist University, Apr. 26, 2007

Mobile and XML Data Management, invited talk, National Technical University of Athens, Dec. 9, 2006

OrientX: an Schema-Based Native XML Database System, invited talk, Dagstuhl Seminar on XQuery Implementation Paradigms, Germany, Nov. 20, 2006.

Seminar on Database System Teaching, Emei Mountain, July 20-22,2006

Web Database Integration, invited talk at IBM T J Watson Research, July 7, 2006

Vision-based Web Data Records Extraction, the 9th SIGMOD International Workshop on Web and Databases (SIGMOD-WebDB2006), Chicago, Illinois, June 30, 2006

Trend in Database Research in China, invited talk, the 2006 Greater China Database Research Summit Great China DB, Hong Kong, China, June 16, 2006

:RecipeCrawler: Collecting Recipe Data from WWW Incrementally, invited talk, DEWS 2006, Okinawa, Japan, March 2, 2006