Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	Fukumoto, J and Kato, T., An overview of Question and Answering Challenge (QAC) of the next NTCIR workshop, Proceedings of the Second NTCIR Workshop Meeting, pp. 375--377, 2001.
	2	Fukumoto, J., Kato, T. and Masui, F., Question and Answering Challenge (QAC-1): Question answering evaluation at NTCIR workshop 3, Working Notes of the Third NTCIR Workshop Meeting Part IV: Question Answering Challenge (QAC-1), pp. 1--10, 2002.
	3	Mark T. Maybury, Intelligent multimedia interfaces, American Association for Artificial Intelligence, Menlo Park, CA, 1993
	4	Burger, J., Cardie, C. et.al., Issues, tasks and program structures to roadmap research in question & answering (Q&A), NIST DUC Vision and Roadmap Documents, 2001. http://www.nlpir.nist.gov/projects/duc/roadmapping.html
	5	Ellen M. Voorhees , Dawn M. Tice, Building a question answering test collection, Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval, p.200-207, July 24-28, 2000, Athens, Greece  [doi>10.1145/345508.345577]
	6	NTCIR, http://research.nii.ac.jp/ntcir/workshop/.
	7	TREC, http://trec.nist.gov/.

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