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
Tapping on the potential of q&a community by recommending answer providers
Proceedings of the 17th ACM conference on Information and knowledge management
Identifying topical authorities in microblogs
Proceedings of the fourth ACM international conference on Web search and data mining
Competition-based user expertise score estimation
Proceedings of the 34th international ACM SIGIR conference on Research and development in Information Retrieval
Early detection of potential experts in question answering communities
UMAP'11 Proceedings of the 19th international conference on User modeling, adaption, and personalization
IP-QAT: in-product questions, answers, & tips
Proceedings of the 24th annual ACM symposium on User interface software and technology
ACM Transactions on Information Systems (TOIS)
Vote calibration in community question-answering systems
SIGIR '12 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval
Topic-sensitive probabilistic model for expert finding in question answer communities
Proceedings of the 21st ACM international conference on Information and knowledge management
Online silk road: nurturing social search through knowledge bartering
Proceedings of the 2013 conference on Computer supported cooperative work
A question of complexity: measuring the maturity of online enquiry communities
Proceedings of the 24th ACM Conference on Hypertext and Social Media
Routing questions for collaborative answering in community question answering
Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
CQArank: jointly model topics and expertise in community question answering
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Evolutionary optimization for ranking how-to questions based on user-generated contents
Expert Systems with Applications: An International Journal
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing
Fuzzy-Based Answer Ranking in Question Answering Communities
International Journal of Digital Library Systems
Expert group formation using facility location analysis
Information Processing and Management: an International Journal
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Community Question Answering (CQA) services enables users to ask and answer questions. In these communities, there are typically a small number of experts amongst the large population of users. We study which questions a user select for answering and show that experts prefer answering questions where they have a higher chance of making a valuable contribution. We term this preferential selection as question selection bias and propose a mathematical model to estimate it. Our results show that using Gaussian classification models we can effectively distinguish experts from ordinary users over their selection biases. In order to estimate these biases, only a small amount of data per user is required, which makes an early identification of expertise a possibility. Further, our study of bias evolution reveals that they do not show significant changes over time indicating that they emanates from the intrinsic characteristics of users.