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Tetsuya Sakai received a Master's degree from Waseda University in 1993 and joined the Toshiba Corporate R&D Center in the same year. He received a Ph.D from Waseda University in 2000 for his work on information retrieval and filtering systems. From 2000 to 2001, he was a visiting researcher at the University of Cambridge Computer Laboratory. In 2007, he became Director of the Natural Language Processing Laboratory at NewsWatch, Inc. In 2009, he joined Microsoft Research Asia. He is Chair of IPSJ SIG-IFAT, Evaluation Co-chair of NTCIR, and Regional Representative to the ACM SIGIR Executive Committee (Asia/Pacific). He has served as a Senior PC member for ACM SIGIR, CIKM and AIRS. He is on the editorial board of Information Processing and Management and that of Information Retrieval the Journal. He has received several awards in Japan, mostly from IPSJ. He is currently co-organising the NTCIR-9 1CLICK and INTENT tasks.
Using Graded-Relevance Metrics for Evaluating Community QA Answer Selection
as author at Fourth ACM International Conference on Web Search and Data Mining - WSDM 2011,