4Nam K K, Ackerman M S, Adamic LA. Questions in, knowledge in: a study of naver' s question answering community[A]/ /Proceedings of the 27th International Conference on Human Factors in Computing Systems [ C]. New York : ACM Press, 2009: 779-788.
5Oh S. The relationships between motivations and answering strategies: An exploratory review of health answerers' behaviors in Yahoo I Answers [J]. Proceedings of the American Society for Information Science and Technology, 2011,48(1): 1-9.
6Agichtein E, Castillo C, Donato D, et al. Finding high quality content in social media[A]//WSDM '08 Proceedings of the International Conference on Web Search and Web Data Mining[C]. New York:ACM,2008: 183-194.
7Shah C, Pomerantz J. Evaluating and predicting answer qualityin community QA[A]/ /SIGIR ' 10 Proceedings of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval[C]. New York: ACM,2010 :411-418.
8Kim S, Oh S. Users' relevance criteria for evaluating answers in a social Q&A site[J]. Journal of the American Society for Information Science and Technology, 2009, 60( 4) : 716-727.
9Jeon J, Croft W B, Lee J H, et al. A framework to predict the quality of answers with non-textual features[A]/ /SIGIR '06 Proceedings of the 29rd International ACM SIGIR Conference on Research and Development in Information Retrieval[C]. Washington: ACM, 2006:228-235.
10Ko J, Si L, Nyberg E. A probabilistic framework for answer selection in question answering[A]//Proceedings of NAACL-HLT[C]. Rochester, NY: Association for Computational Linguistics, 2007: 524-531.