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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 社会情報学コース ソーシャルメディアユニット 教授(併任) |
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![]() Proc. of IEEE BigData, pp.713-718, Washington DC, USA, 2024 |
Masafumi Iwanaga, Keishi Tajima, Yoko Yamakata |
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![]() Proc. of ACM Multimedia Asia, pp.94:1-94:7, Auckland, New Zealand, 2024 |
Yixin Zhang,
Yoko Yamakata, Keishi Tajima |
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![]() 情報処理学会論文誌データベース, TOD104, 2025 |
Yixin Zhang,
Yoko Yamakata, Keishi Tajima |
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![]() Proc. of ACM ICMR, pp.1145-1149, Phuket, Thailand, 2024 |
Eisaku Yoshikawa, Keishi Tajima |
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abstract poster .bib |
![]() Proc. of WWW Conf., pp.545-548, Singapore, 2024 |
Hirotaka Nagashima, Keishi Tajima |
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abstract poster .bib promo video |
![]() Proc. of ECIR Part III, pp.122-136, Glasgow, UK, 2024 |
Satoshi Horikawa,
Chiyonosuke Nemoto, Keishi Tajima, Masaki Matsubara, Atsuyuki Morishima |
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abstract slides .bib |
![]() Companion Proc. of ACM IUI, pp.89-94, Greenville, SC, 2024 |
Tetsuya Sasaoka, Yoko Yamakata, Keishi Tajima |
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abstract .bib poster slides |
A Centrality for Social Media Users Focusing on Information-Gathering Ability Proc. of ACM Hypertext, pp.32:1-32:9, Rome, Italy, 2023 |
Mamoru Yamakawa, Keishi Tajima |
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Active Learning Strategies Based on Text Informativeness Proc. of IEEE/WIC/ACM WI-IAT, pp.32-39, Niagara Falls, Canada, 2022 |
Ruide Li,
Yoko Yamakata, Keishi Tajima |
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abstract .bib slides video |
Real-World Popularity Estimation from Community Structure of Followers on SNS Proc. of IEEE/WIC/ACM WI-IAT, pp.328-334, Niagara Falls, Canada, 2022 |
Shuhei Kobayashi, Keishi Tajima |
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Worker Qualifications for Image-Aesthetic-Assessment Tasks in Crowdsourcing Work-in-progress paper in AAAI HCOMP, #pages:3, 2022 |
Yudai Kato,
Marie Katsurai, Keishi Tajima |
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abstract .bib slides poster |
MIAIS: A Multimedia Recipe Dataset with Ingredient Annotation at Each Instructional Step Proc. of CEA++ (In conj. with ACM MM), pp.49-52, Lisbon, Portugal, 2022 |
Yixin Zhang,
Yoko Yamakata, Keishi Tajima |
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Spammer Detection Based on Task Completion Time Variation in Crowdsourcing Proc. of HMData (collocated with IEEE BigData), pp.3568-3570, 2021 |
Ayato Watanabe, Keishi Tajima |
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MIRecipe: A Recipe Dataset for Stage-Aware Recognition of Changes in Appearance of Ingredients Proc. of ACM Multimedia Asia, pp.16:1-16:7, 2021 |
Yixin Zhang,
Yoko Yamakata, Keishi Tajima |
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abstract .bib slides video poster |
Supplementing Omitted Named Entities in Cooking Procedural Text with Attached Images Proc. of IEEE MIPR, pp.199-205, 2021 |
Yixin Zhang,
Yoko Yamakata, Keishi Tajima |
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Making AI Machines Work for Humans in FoW ACM SIGMOD Record, Vol.49, No.2, pp.30-35, 2020 |
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Categorization of Cooking Actions Based on Textual/Visual Similarity Proc. of MADiMa (In conj. with ACM MM), pp.42-49, Nice, France, 2019 |
Yixin Zhang,
Yoko Yamakata, Keishi Tajima |
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Disjunctive Sets of Phrase Queries for Diverse Query Suggestion Proc. of IEEE/WIC/ACM WI, pp.449-455, Thessaloniki, Greece, 2019 |
Ziyang Liao, Keishi Tajima |
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Identifying Tags Describing Image Contents Proc. of ACM Hypertext, pp.297-298, Hof, Germany, 2019 |
Taka Maenishi, Keishi Tajima |
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Imagine All the People and AI in the Future of Work ACM SIGMOD Blog, 2019 |
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Temporal Analysis of Supply and Demand of Topics on The Web Proc. of ACM WebSci, pp.143-144, Boston, MA, 2019 |
Masahiro Inoue, Keishi Tajima |
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A Ranking Method for Relaxed Queries in Book Search Proc. of ACM/IEEE JCDL, pp.400-401, Urbana-Champaign, IL, 2019 |
Momo Kyozuka, Yang Xu, Keishi Tajima |
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Improving Multiclass Classification in Crowdsourcing by Using Hierarchical Schemes Proc. of WWW Conf., pp.2694-2700, San Francisco, CA, 2019 |
Xiaoni Duan, Keishi Tajima |
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A Map Search System based on a Spatial Query Language (demo) Proc. of EDBT, pp.578-581, Lisbon, Portugal, 2019 |
Yuanyuan Wang,
Panote Siriaraya, Haruka Sakata, Yukiko Kawai, Keishi Tajima |
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A Proposal of Spatial Operators for a Collaborative Map Search System Companion Proc. of ACM IUI, pp.79-80, Los Angeles, CA, 2019 |
Yuanyuan Wang,
Panote Siriaraya, Yukiko Kawai, Keishi Tajima |
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A Case Study on Start-up of Dataset Construction: In Case of Recipe Named Entity Corpus Proc. of HMData (collocated with IEEE BigData), pp.3564-3567, Seattle, WA, 2018 |
Yoko Yamakata, Keishi Tajima, Shinsuke Mori |
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A Cache-based Approach to Dynamic Switching between Different Dataflows in Crowdsourcing Proc. of HMData (collocated with IEEE BigData), pp.3552-3554, Seattle, WA, 2018 |
Yusuke Suzuki,
Masaki Matsubara,
Keishi Tajima, Toshiyuki Amagasa, Atsuyuki Morishima |
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Ranking Methods for Query Relaxation in Book Search Proc. of IEEE/WIC/ACM WI, pp.466-473, Santiago, Chile, 2018 |
Momo Kyozuka, Keishi Tajima |
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SNS Retrieval Based on User Profile Estimation Using Transfer Learning from Web Search Proc. of IEEE/WIC/ACM WI, pp.278-285, Santiago, Chile, 2018 |
Daisuke Kataoka, Keishi Tajima |
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Efficient Pipeline Processing of Crowdsourcing Workflows Proc. of ACM CIKM, pp.1559-1562, Turin, Italy, 2018 |
Ken Mizusawa,
Keishi Tajima,
Masaki Matsubara, Toshiyuki Amagasa, Atsuyuki Morishima |
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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 |
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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 |
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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 |
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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 |
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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 |
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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, Edinburgh, Scotland, 2013 |
Keishi Tajima | ![]() |
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Tweet Classification Based on Their Lifetime Duration Proc. of ACM CIKM, pp.2367-2370, Maui, HI, 2012 |
Hikaru Takemura, Keishi Tajima |
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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 |
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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 |
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Browsing Large HTML Tables on Small Screens Proc. of ACM UIST, pp.259-268, Monterey, CA, 2008 |
Keishi Tajima, Kaori Ohnishi |
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Incremental Evaluation of a Monotone XPath Fragment Proc. of ACM CIKM, pp.245-246, Bremen, Germany, 2005 |
Hidetaka Matsumura, Keishi Tajima |
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Answering XPath Queries over Networks by Sending Minimal Views Proc. of VLDB, pp.48-59, Toronto, Canada, 2004 |
Keishi Tajima, Yoshiki Fukui |
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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 |
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abstract .bib |
Archiving Scientific Data Proc. of ACM SIGMOD, pp.1-12, Madison, WI, 2002 |
Peter Buneman,
Sanjeev Khanna, Keishi Tajima, Wang-Chiew Tan |
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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 |
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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 |
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Finding Context Paths for Web Pages Proc. of ACM Hypertext, pp.13-22, Darmstadt, Germany, 1999 |
Yoshiaki Mizuuchi, Keishi Tajima |
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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 |
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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 |
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Static Detection of Security Flaws in Object-Oriented Databases Proc. of ACM SIGMOD, pp.341-352, Montreal, Canada, 1996 |
Keishi Tajima | ![]() |
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A Polymorphic Calculus for Views and Object Sharing Proc. of ACM PODS, pp.255-266, Minneapolis, MN, 1994 |
Atsushi Ohori, Keishi Tajima |
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