T. Hashimoto, Y. Shirota, A. Iizawa, and H. Kitagawa : "A Rule-based Scheme to Make Personal Digests from Video Program Meta Data", Proc. 12th International Conference on Database and Expert System Applications (DEXA 2001), pp. 243-253, Munich, Germany, September 2001
T. Hashimoto, Y. Shirota, A. Iizawa, and H. Kitagawa : "Digest Making Method Based on Turning Point Analysis", Proc. 2nd International Conference on Web Information Systems Engineering (WISE 2001), Vol. 1, pp. 83-91, Kyoto, Japan, December 2001
P. W. H. Kwan, K. Toraichi, H. Kitagawa, and K. Kameyama : "Approximate Query Processing for a Content-Based Image Retrieval Method", Proc. 14th International Conference on Database and Expert Systems Applications (DEXA 2003) (LNCS 2736), pp. 517-526, Prague, Czech, September 2003
T. Hashimoto, T. Katooka, A. Iizawa, and H. Kitagawa : "Significant Scene Extraction Method Using Situation Importance", Proc. 6th International Workshop on Multimedia Network Systems and Applications (MNSA 2004), pp. 248-253, Tokyo, Japan, March 2004