2018

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Supervised Nonparametric Multimodal Topic Modeling Methods for Multi-class Video Classification
Jianfei Xue | Koji Eguchi
Proceedings of the 2018 ACM on International Conference on Multimedia Retrieval, ICMR 2018, Yokohama, Japan, June 11-14, 2018

2017

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Particle Filter Inference based on Activities for Overlapping Community Models
Shohei Sakamoto | Koji Eguchi
Proceedings of the 26th International Conference on World Wide Web Companion, Perth, Australia, April 3-7, 2017

2016

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Sequential Monte Carlo Inference Based on Activities for Overlapping Community Models
Shohei Sakamoto | Koji Eguchi
Behavioral Analytics in Social and Ubiquitous Environments - 6th International Workshop on Mining Ubiquitous and Social Environments, MUSE 2015, Porto, Portugal, September 7, 2015; 6th International Workshop on Modeling Social Media, MSM 2015, Florence, Italy, May 19, 2015; 7th International Workshop on Modeling Social Media, MSM 2016, Montreal, QC, Canada, April 12, 2016; Revised Selected Papers

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Sequential Correspondence Hierarchical Dirichlet Processes for Video Data Analysis
Jianfei Xue | Koji Eguchi
Proceedings of the 2016 ACM on International Conference on Multimedia Retrieval, ICMR 2016, New York, New York, USA, June 6-9, 2016

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NEXTI at NTCIR-12 IMine-2 Task
Hidetsugu Nanba | Tetsuya Sakai | Noriko Kando | Atsushi Keyaki | Koji Eguchi | Kenji Hatano | Toshiyuki Shimizu | Yu Hirate | Atsushi Fujii
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016

2009

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Query structuring and expansion with two-stage term dependence for Japanese web retrieval
Koji Eguchi | W. Bruce Croft
2009 Volume 12 Issue 3

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Locally contextualized smoothing of language models for sentiment sentence retrieval
Takayoshi Okamoto | Tetsuya Honda | Koji Eguchi
Proceedings of the 1st International CIKM Workshop on Topic-Sentiment Analysis for Mass Opinion, TSA '09, Hong Kong, SAR, China, November 6, 2009

2008

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Automatic query structuring from sentences for Japanese web retrieval
Tetsuya Shibata | Koji Eguchi
Proceeding of the 2nd ACM workshop on Improving Non English Web Searching, iNEWS 2008, Napa Valley, California, USA, October 30, 2008

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Predicting protein-protein relationships from literature using collapsed variational latent dirichlet allocation
Tatsuya Asou | Koji Eguchi
Proceeding of the 2nd International Workshop on Data and Text Mining in Bioinformatics, DTMBIO 2008, Napa Valley, California, USA, October 30, 2008

2007

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Opinion Retrieval Experiments Using Generative Models: Experiments for the TREC 2007 Blog Track
Yuki Arai | Koji Eguchi
Proceedings of The Sixteenth Text REtrieval Conference, TREC 2007, Gaithersburg, Maryland, USA, November 5-9, 2007

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Use of Topicality and Information Measures to Improve Document Representation for Story Link Detection
Chirag Shah | Koji Eguchi
Advances in Information Retrieval, 29th European Conference on IR Research, ECIR 2007, Rome, Italy, April 2-5, 2007, Proceedings

2006

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Opinion Retrieval Experiments Using Generative Models: Experiments for the TREC 2006 Blog Track
Koji Eguchi | Chirag Shah
Proceedings of the Fifteenth Text REtrieval Conference, TREC 2006, Gaithersburg, Maryland, USA, November 14-17, 2006

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Query Structuring with Two-Stage Term Dependence in the Japanese Language
Koji Eguchi | W. Bruce Croft
Information Retrieval Technology, Third Asia Information Retrieval Symposium, AIRS 2006, Singapore, October 16-18, 2006, Proceedings

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Boosting relevance model performance with query term dependence
Koji Eguchi | W. Bruce Croft
Proceedings of the 2006 ACM CIKM International Conference on Information and Knowledge Management, Arlington, Virginia, USA, November 6-11, 2006

2005

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NTCIR-5 Query Expansion Experiments using Term Dependence Models
Koji Eguchi
Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-5, National Center of Sciences, Tokyo, Japan, December 6-9, 2005

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Multi-Document Summarization Reflecting Information Needs on Subjectivity
Yohei Seki | Koji Eguchi | Noriko Kando | Masaki Aono
Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-5, National Center of Sciences, Tokyo, Japan, December 6-9, 2005

2004

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An evaluation of the Web retrieval task at the third NTCIR workshop
Koji Eguchi | Keizo Oyama | Emi Ishida | Noriko Kando | Kazuko Kuriyama
2004 Volume 38 Issue 1

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Cross-lingual information retrieval (CLIR) task at the NTCIR workshop 3
Kazuaki Kishida | Kuang-hua Chen | Sukhoon Lee | Hsin-Hsi Chen | Noriko Kando | Kazuko Kuriyama | Sung-Hyon Myaeng | Koji Eguchi
2004 Volume 38 Issue 1

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User-Focused Multi-Document Summarization with Paragraph Clustering and Sentence-Type Filtering
Yohei Seki | Koji Eguchi | Noriko Kando
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Prediction of Performance on Cross-Lingual Information Retrieval by Regression Models
Kazuaki Kishida | Kazuko Kuriyama | Noriko Kando | Koji Eguchi
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Overview of the Topical Classification Task at NTCIR-4 WEB
Koji Eguchi
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Overview of the NTCIR-4 WEB Navigational Retrieval Task 1
Keizo Oyama | Koji Eguchi | Haruko Ishikawa | Akiko Aizawa
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Overview of the Informational Retrieval Task at NTCIR-4 WEB
Koji Eguchi | Keizo Oyama | Akiko Aizawa | Haruko Ishikawa
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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Overview of CLIR Task at the Fourth NTCIR Workshop
Kazuaki Kishida | Kuang-hua Chen | Sukhoon Lee | Kazuko Kuriyama | Noriko Kando | Hsin-Hsi Chen | Sung-Hyon Myaeng | Koji Eguchi
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

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An Evaluation Method of Web Search Engines Based on Users' Sense
Takashi Ohtsuka | Koji Eguchi | Hayato Yamana
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies Information Retrieval, Question Answering and Summarization, NTCIR-4, National Center of Sciences, Tokyo, Japan, June 2-4, 2004

2003

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System Evaluation Methods for Web Retrieval Tasks Considering Hyperlink Structure
Koji Eguchi | Keizo Oyama | Emi Ishida | Noriko Kando | Kazuko Kuriyama
Proceedings of the Twelfth International World Wide Web Conference - Posters, WWW 2003, Budapest, Hungary, May 20-24, 2003

2002

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Pooling for a Large-Scale Test Collection: An Analysis of the Search Results from the First NTCIR Workshop
Kazuko Kuriyama | Noriko Kando | Toshihiko Nozue | Koji Eguchi
2002 Volume 5 Issue 1

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Overview of the Web Retrieval Task at the Third NTCIR Workshop
Koji Eguchi | Keizo Oyama | Emi Ishida | Noriko Kando | Kazuko Kuriyama
Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering, NTCIR-3, Tokyo, Japan, October 8-10, 2002

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Overview of CLIR Task at the Third NTCIR Workshop
Kuang-hua Chen | Hsin-Hsi Chen | Noriko Kando | Kazuko Kuriyama | Sukhoon Lee | Sung-Hyon Myaeng | Kazuaki Kishida | Koji Eguchi | Hyeon Kim
Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering, NTCIR-3, Tokyo, Japan, October 8-10, 2002

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The web retrieval task and its evaluation in the third NTCIR workshop
Koji Eguchi | Keizo Oyama | Emi Ishida | Kazuko Kuriyama | Noriko Kando
SIGIR 2002: Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, August 11-15, 2002, Tampere, Finland

1999

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Overview of IR tasks
Noriko Kando | Kazuko Kuriyama | Toshihiko Nozue | Koji Eguchi | Hiroyuki Kato | Soichiro Hidaka
Proceedings of the First NTCIR Workshop on Research in Japanese Text Retrieval and Term Recognition, NTCIR-1, Tokyo, Japan, August 30 - September 1, 1999

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Adaptive Cluster-Based Browsing Using Incrementally Expanded Queries and its Effects (poster abstract)
Koji Eguchi
SIGIR '99: Proceedings of the 22nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, August 15-19, 1999, Berkeley, CA, USA

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