Keishi Tajima


2019

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Improving Multiclass Classification in Crowdsourcing by Using Hierarchical Schemes
Xiaoni Duan | Keishi Tajima
The World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019

2018

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Efficient Pipeline Processing of Crowdsourcing Workflows
Ken Mizusawa | Keishi Tajima | Masaki Matsubara | Toshiyuki Amagasa | Atsuyuki Morishima
Proceedings of the 27th ACM International Conference on Information and Knowledge Management, CIKM 2018, Torino, Italy, October 22-26, 2018

2016

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Predicting Popularity of Twitter Accounts through the Discovery of Link-Propagating Early Adopters
Daichi Imamori | Keishi Tajima
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

2015

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Heading-Aware Snippet Generation for Web Search
Tomohiro Manabe | Keishi Tajima
Information Retrieval Technology - 11th Asia Information Retrieval Societies Conference, AIRS 2015, Brisbane, QLD, Australia, December 2-4, 2015. Proceedings

2012

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Noise robust detection of the emergence and spread of topics on the web
Masahiro Inoue | Keishi Tajima
2nd Temporal Web Analytics Workshop, TempWeb '12, Lyon, France, April 16-17, 2012

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Tweet classification based on their lifetime duration
Hikaru Takemura | Keishi Tajima
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

2005

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Incremental evaluation of a monotone XPath fragment
Hidetaka Matsumura | Keishi Tajima
Proceedings of the 2005 ACM CIKM International Conference on Information and Knowledge Management, Bremen, Germany, October 31 - November 5, 2005