GROUP '05 Proceedings of the 2005 international ACM SIGGROUP conference on Supporting group work
Finding experts in community-based question-answering services
Proceedings of the 14th ACM international conference on Information and knowledge management
Expertise networks in online communities: structure and algorithms
Proceedings of the 16th international conference on World Wide Web
Discovering authorities in question answer communities by using link analysis
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
Identifying authoritative actors in question-answering forums: the case of Yahoo! answers
Proceedings of the 14th ACM SIGKDD international conference on Knowledge discovery and data mining
Expertise Analysis in a Question Answer Portal for Author Ranking
WI-IAT '08 Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 01
Facts or friends?: distinguishing informational and conversational questions in social Q&A sites
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Ranking tournaments: Local search and a new algorithm
Journal of Experimental Algorithmics (JEA)
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Many internet users turn to online knowledge exchange communities to get information they cannot find elsewhere. Question&Answer sites are one of the largest hosts of such communities where users reciprocally answer their questions. Research on expert identification in online communities tries to rank community members by their expertise or to separate experts from non-experts. Until now proposed algorithms for expert identification do not perform well on all datasets. We present an analysis of the structures of topic-induced sub-communities of Question&Answer communities. This analysis aims to provide a basis for expert identification research. The results from the analysis of the network structures explain why common expert identification algorithms are not suitable for all communities.