2017

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Overview of the NTCIR-13 Short Text Conversation Task
Lifeng Shang | Tetsuya Sakai | Hang Li | Ryuichiro Higashinaka | Yusuke Miyao | Yuki Arase | Masako Nomoto
The 13th NTCIR Conference, Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, December 5-8, 2017

2016

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Overview of the NTCIR-12 Short Text Conversation Task
Lifeng Shang | Tetsuya Sakai | Zhengdong Lu | Hang Li | Ryuichiro Higashinaka | Yusuke Miyao
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016

2010

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Trend detection model
Noriaki Kawamae | Ryuichiro Higashinaka
Proceedings of the 19th International Conference on World Wide Web, WWW 2010, Raleigh, North Carolina, USA, April 26-30, 2010

2008

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NTT's CCLQA System for NTCIR-7 ACLIA
Ryuichiro Higashinaka | Hideki Isozaki
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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NTT's Question Answering System for NTCIR-6 QAC-4
Ryuichiro Higashinaka | Hideki Isozaki
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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