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portrait 田島 敬史 博士(理学)(1996, 東京大学 理学系研究科情報科学専攻
京都大学 国際高等教育院 教授
京都大学 情報学研究科 社会情報学専攻 ソーシャルメディアユニット 教授(併任)

研究課題

発表論文 著作権について

最近の論文

title / published in author(s)  pdf  misc
Predicting Popularity of Twitter Accounts through the Discovery of Link-Propagating Early Adopters
Proc. of ACM CIKM, pp.639-648, Indianapolis, IN, 2016
Daichi Imamori,
Keishi Tajima
Free from ACM Author-Izer abstract
slides  .bib
Classification of Twitter Accounts into Targeting Accounts and Non-Targeting Accounts
Proc. of ACM Hypertext, pp.291-296, Halifax, Canada, 2016
Hikaru Takemura,
Keishi Tajima
Free from ACM Author-Izer abstract
slides  .bib
Subtopic Ranking Based on Hierarchical Headings
Proc. of WEBIST, pp.121-130, Rome, Italy, 2016
Tomohiro Manabe,
Keishi Tajima
pdf abstract
slides
Heading-Aware Proximity Measure and Its Application to Web Search
DBSJ Journal, Vol.14, No.2, pp.1-6, 2016
Tomohiro Manabe,
Keishi Tajima
pdf abstract
.bib  data
Automatic Generation of Authentication Questions from Private Messages
Proc. of IEEE/WIC/ACM WI, pp.505-510, Singapore, 2015
Ming Li,
Keishi Tajima
pdf abstract
slides  .bib
Heading-Aware Snippet Generation for Web Search
Proc. of AIRS, pp.188-200, LNCS, Vol. 9460, Brisbane, Australia, 2015
Tomohiro Manabe,
Keishi Tajima
pdf abstract  .bib
slides  data
Extracting Logical Hierarchical Structure of HTML Documents Based on Headings
Proc. of VLDB, Vol.8, No.12, pp.1606-1617, Kohala Coast, HI, 2015
Tomohiro Manabe,
Keishi Tajima
pdf abstract  .bib
slides  poster
software
Classification of Twitter Follow Links Based on the Followers' Intention
Proc. of ACM SAC, pp.1174-1180, Salamanca, Spain, 2015
Hikaru Takemura,
Atsushi Tanaka, Keishi Tajima
Free from ACM Author-Izer abstract
slides  .bib
Why You Follow: A Classification Scheme for Twitter Follow Links
Proc. of ACM Hypertext, pp.324-326, Santiago, Chile, 2014
Atsushi Tanaka,
Hikaru Takemura, Keishi Tajima
Free from ACM Author-Izer abstract
poster  .bib
Online Retweet Recommendation with Item Count Limits
Proc. of IEEE/WIC/ACM WI, pp.282-289, Warsaw, Poland, 2014
Xiaoqi Zhao,
Keishi Tajima
pdf abstract
slides  .bib
Schemaless Semistructured Data Revisited
--Reinventing Peter Buneman's Deterministic Semistructured Data Model--

In Search of Elegance in the Theory and Practice of Computation
- Essays Dedicated to Peter Buneman
, pp.466-482, LNCS, Vol. 8000, 2013
Keishi Tajima pdf abstract
slides  .bib
Tweet Classification Based on Their Lifetime Duration
Proc. of ACM CIKM, pp.2367-2370, Maui, HI, 2012
Hikaru Takemura,
Keishi Tajima
Free from ACM Author-Izer abstract
poster  .bib
Noise Robust Detection of the Emergence and Spread of Topics on the Web
Proc. of TempWeb (in conj. with WWW Conf.), pp.9-16, Lyon, France, 2012
Masahiro Inoue,
Keishi Tajima
Free from ACM Author-Izer abstract  .bib
slides  software

主要論文

ICDE 2010 で発表した論文にはバグがあります.修正版はこちら.

title / published in author(s)  pdf  misc
Optimal Tree Node Ordering for Child/Descendant Navigations
Proc. of IEEE ICDE, pp.840-843, Long Beach, CA, 2010
Atsuyuki Morishima,
Keishi Tajima, Masateru Tadaishi
pdf abstract
slides  .bib
WildThumb: A Web Browser Supporting Efficient Task Management on Wide Displays
Proc. of ACM IUI, pp.159-168, Hong Kong, 2010
Shenwei Liu,
Keishi Tajima
Free from ACM Author-Izer abstract
slides  .bib
Browsing Large HTML Tables on Small Screens
Proc. of ACM UIST, pp.259-268, Monterey, CA, 2008
Keishi Tajima,
Kaori Ohnishi
Free from ACM Author-Izer abstract  .bib
slides  demo
Incremental Evaluation of a Monotone XPath Fragment
Proc. of ACM CIKM, pp.245-246, Bremen, Germany, 2005
Hidetaka Matsumura,
Keishi Tajima
Free from ACM Author-Izer abstract
poster  .bib
Answering XPath Queries over Networks by Sending Minimal Views
Proc. of VLDB, pp.48-59, Toronto, Canada, 2004
Keishi Tajima,
Yoshiki Fukui
pdf abstract
slides  .bib
Archiving Scientific Data (extended version of the SIGMOD paper)
ACM TODS, Vol.29, No.1 (SIGMOD/PODS special issue), pp.2-42, 2004
Peter Buneman, Sanjeev Khanna,
Keishi Tajima, Wang-Chiew Tan
Free from ACM Author-Izer abstract
.bib
Archiving Scientific Data
Proc. of ACM SIGMOD, pp.1-12, Madison, WI, 2002
Peter Buneman, Sanjeev Khanna,
Keishi Tajima, Wang-Chiew Tan
Free from ACM Author-Izer abstract
.bib
A Query Model to Synthesize Answer Intervals from Indexed Video Units
IEEE Trans. on Knowledge and Data Eng., Vol.13, No.5, pp.824-838, 2001
Sujeet Pradhan, Keishi Tajima,
Katsumi Tanaka
pdf abstract
.bib
Discovery and Retrieval of Logical Information Units in Web
(invited) Proc. of WOWS (ACM DL workshop), pp.13-23, Berkeley, CA, 1999
Keishi Tajima, Kenji Hatano, Takeshi Matsukura,
Ryouichi Sano, Katsumi Tanaka
pdf abstract
slides  .bib
Finding Context Paths for Web Pages
Proc. of ACM Hypertext, pp.13-22, Darmstadt, Germany, 1999
Yoshiaki Mizuuchi,
Keishi Tajima
Free from ACM Author-Izer abstract
slides  .bib
Cut as a Querying Unit for WWW, Netnews, and E-mail
Proc. of ACM Hypertext, pp.235-244, Pittsburgh, PA, 1998
Keishi Tajima, Yoshiaki Mizuuchi,
Masatsugu Kitagawa, Katsumi Tanaka
Free from ACM Author-Izer abstract
slides  .bib
An Equational Object-Oriented Data Model and its Data-Parallel Query Language
Proc. of ACM OOPSLA, pp.1-18, San Jose, CA, 1996
Susumu Nishimura,
Atsushi Ohori, Keishi Tajima
Free from ACM Author-Izer abstract
.bib
Static Detection of Security Flaws in Object-Oriented Databases
Proc. of ACM SIGMOD, pp.341-352, Montreal, Canada, 1996
Keishi Tajima Free from ACM Author-Izer abstract
slides  .bib
A Polymorphic Calculus for Views and Object Sharing
Proc. of ACM PODS, pp.255-266, Minneapolis, MN, 1994
Atsushi Ohori,
Keishi Tajima
Free from ACM Author-Izer abstract
slides  .bib

リンク


tajima@i.kyoto-u.ac.jp / Fax: 075-753-5978 / 総合研究7号館404号室