2016

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Repeated Event Discovery from Image Sequences by Using Segmental Dynamic Time Warping: Experiment at the NTCIR-12 Lifelog Task
Kosuke Yamauchi | Tomoyosi Akiba
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016

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Overview of the NTCIR-12 SpokenQuery&Doc-2 Task
Tomoyosi Akiba | Hiromitsu Nishizaki | Hiroaki Nanjo | Gareth J. F. Jones
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016

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Graph-based Document Expansion and Robust SCR Models for False Positives: Experiments at the NTCIR-12 SpokenQuery&Doc-2
Sho Kawasaki | Hiroshi Oshima | Tomoyosi Akiba
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016

2014

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STD Score Combination with Acoustic Likelihood and Robust SCR Models for False Positives: Experiments at NTCIR-11 SpokenQuery&Doc
Yusuke Takada | Sho Kawasaki | Hiroshi Oshima | Hiroshi Kawatani | Tomoyosi Akiba
Proceedings of the 11th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-11, National Center of Sciences, Tokyo, Japan, December 9-12, 2014

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Overview of the NTCIR-11 SpokenQuery&Doc Task
Tomoyosi Akiba | Hiromitsu Nishizaki | Hiroaki Nanjo | Gareth J. F. Jones
Proceedings of the 11th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-11, National Center of Sciences, Tokyo, Japan, December 9-12, 2014

2013

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Overview of the NTCIR-10 SpokenDoc-2 Task
Tomoyosi Akiba | Hiromitsu Nishizaki | Kiyoaki Aikawa | Xinhui Hu | Yoshiaki Itoh | Tatsuya Kawahara | Seiichi Nakagawa | Hiroaki Nanjo | Yoichi Yamashita
Proceedings of the 10th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-10, National Center of Sciences, Tokyo, Japan, June 18-21, 2013

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DTW-Distance-Ordered Spoken Term Detection and STD-based Spoken Content Retrieval: Experiments at NTCIR-10 SpokenDoc-2
Tomoyosi Akiba | Tomoko Takigami | Teppei Ohno | Kenta Kase
Proceedings of the 10th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-10, National Center of Sciences, Tokyo, Japan, June 18-21, 2013

2011

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STD based on Hough Transform and SDR using STD results: Experiments at NTCIR-9 SpokenDoc
Taisuke Kaneko | Tomoko Takigami | Tomoyosi Akiba
Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-9, National Center of Sciences, Tokyo, Japan, December 6-9, 2011

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Overview of the IR for Spoken Documents Task in NTCIR-9 Workshop
Tomoyosi Akiba | Hiromitsu Nishizaki | Kiyoaki Aikawa | Tatsuya Kawahara | Tomoko Matsui
Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-9, National Center of Sciences, Tokyo, Japan, December 6-9, 2011

2010

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Analyzing Effects of Factored Translation Models in English to Japanese Statistical Machine Translation
Takahiro Oda | Tomoyosi Akiba
Proceedings of the 8th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-8, National Center of Sciences, Tokyo, Japan, June 15-18, 2010

2008

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Statistical Machine Translation based Passage Retrieval - Experiment at NTCIR-7 IR4QA Task
Tatsuhiro Hyodo | Tomoyosi Akiba
Proceedings of the 7th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-7, National Center of Sciences, Tokyo, Japan, December 16-19, 2008

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Effect of the Topic Dependent Translation Models for Patent Translation - Experiment at NTCIR-7
Takeshi Ito | Tomoyosi Akiba | Katunobu Itou
Proceedings of the 7th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-7, National Center of Sciences, Tokyo, Japan, December 16-19, 2008

2007

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Statistical Machine Translation based Passage Retrieval for Cross-Lingual Question Answering — Experiments at NTCIR-6
Tomoyosi Akiba | Kei Shimizu | Atsushi Fujii | Katunobu Itou
Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-6, National Center of Sciences, Tokyo, Japan, May 15-18, 2007

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Non-factoid Question Answering Experiments at NTCIR-6: Towards Answer Type Detection for Realworld Questions
Junta Mizuno | Tomoyosi Akiba | Atsushi Fujii | Katunobu Itou
Proceedings of the 6th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, Question Answering and Cross-Lingual Information Access, NTCIR-6, National Center of Sciences, Tokyo, Japan, May 15-18, 2007

2005

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Question Answering Experiments at NTCIR-5: Acquisition of Answer Evaluation Patterns and Context Processing using Passage Retrieval
Yuichi Murata | Tomoyosi Akiba | Atsushi Fujii | Katunobu Itou
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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Exploiting Anchor Text for the Navigational Web Retrieval at NTCIR-5
Atsushi Fujii | Katunobu Itou | Tomoyosi Akiba | Tetsuya Ishikawa
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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Bi-directional Cross Language Question Answering using a Single Monolingual QA System
Kei Shimizu | Tomoyosi Akiba | Atsushi Fujii | Katunobu Itou
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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Question Answering Using "Common Sense" and Utility Maximization Principle
Tomoyosi Akiba | Katunobu Itou | Atsushi Fujii
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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Experiments on Web Retrieval Driven by Spontaneously Spoken Queries
Tomoyosi Akiba | Atsushi Fujii | Tetsuya Ishikawa | Katunobu Itou
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

2002

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Towards Speech-Driven Question Answering: Experiments Using the NTCIR-3 Question Answering Collection
Tomoyosi Akiba | Katunobu Itou | Atsushi Fujii | Tetsuya Ishikawa
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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