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田 馳, 手塚 太郎, 小山 聡, 田島 敬史, 田中 克己,

「質問キーワードの近接性と密度分布に基づくウェブ検索の改善手法」

日本データベース学会 Letters, Vol. 5, No. 1, pp. 113-116, June 2006

張 一萌, 何 書勉, 小山 聡, 田島 敬史, 田中 克己,

「時系列データに意味的に関連するニューストピックの発見」

日本データベース学会 Letters, Vol. 5, No. 1, pp. 133-136, June 2006

Chi Tian, Taro Tezuka, Satoshi Oyama, Keishi Tajima, Katsumi Tanaka,

Web Search Improvement Based on Proximity and Density of Multiple Keywords

Proc. of the 2nd International Special Workshop on Databases for Next-Generation Researchers,
pp. 122-125, IEEE Computer Society Press, April 2006 (IEEE Xplore, IEEE CS DL)

Yutaka Kabutoya, Takayuki Yumoto, Satoshi Oyama, Keishi Tajima, Katsumi Tanaka,

Quality Estimation of Local Contents Based on PageRank Values of Web Pages

Proc. of the 2nd International Special Workshop on Databases for Next-Generation Researchers,
pp. 126-129, IEEE Computer Society Press, April 2006 (IEEE Xplore, IEEE CS DL)

Keishi Tajima, Katsumi Tanaka,

New Techniques for the Discovery of Logical Documents in Web

Proc. of International Symposium on Database Applications in Non-Traditional Environments,
pp. 125-132, IEEE Computer Society Press, November 1999 (IEEE Xplore, IEEE CS DL)

Keishi Tajima, Kenji Hatano, Takeshi Matsukura, Ryouichi Sano, Katsumi Tanaka,

Discovery and Retrieval of Logical Information Units in Web

(invited) Proc. of Workshop on Organizing Web Space (in conjunction with 4th ACM Conference on Digital Libraries),
pp. 13-23, August 1999

Yoshiaki Mizuuchi, Keishi Tajima,

Finding Context Paths for Web Pages

Proc. of 10th ACM Conference on Hypertext and Hypermedia,
pp. 13-22, ACM Press, February 1999 (ACM DL)

Keishi Tajima, Yoshiaki Mizuuchi, Masatsugu Kitagawa, Katsumi Tanaka,

Cut as a Querying Unit for WWW, Netnews, and E-mail

Proc. of 9th ACM Conference on Hypertext and Hypermedia,
pp. 235-244, ACM Press, June 1998 (ACM DL)