Authoritative sources in a hyperlinked environment
Journal of the ACM (JACM)
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
Graph-based ranking algorithms for e-mail expertise analysis
DMKD '03 Proceedings of the 8th ACM SIGMOD workshop on Research issues in data mining and knowledge discovery
Expertise identification using email communications
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Propagation of trust and distrust
Proceedings of the 13th international conference on World Wide Web
Finding similar questions in large question and answer archives
Proceedings of the 14th ACM international conference on Information and knowledge management
Propagation Models for Trust and Distrust in Social Networks
Information Systems Frontiers
An analysis of the AskMSR question-answering system
EMNLP '02 Proceedings of the ACL-02 conference on Empirical methods in natural language processing - Volume 10
A framework to predict the quality of answers with non-textual features
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
Expertise networks in online communities: structure and algorithms
Proceedings of the 16th international conference on World Wide Web
Internet-scale collection of human-reviewed data
Proceedings of the 16th international conference on World Wide Web
A regression framework for learning ranking functions using relative relevance judgments
SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
Discovering authorities in question answer communities by using link analysis
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
Finding high-quality content in social media
WSDM '08 Proceedings of the 2008 International Conference on Web Search and Data Mining
Finding the right facts in the crowd: factoid question answering over social media
Proceedings of the 17th international conference on World Wide Web
Knowledge sharing and yahoo answers: everyone knows something
Proceedings of the 17th international conference on World Wide Web
Co-ranking Authors and Documents in a Heterogeneous Network
ICDM '07 Proceedings of the 2007 Seventh IEEE International Conference on Data Mining
Proceedings of the international conference on Multimedia information retrieval
Exploiting social context for review quality prediction
Proceedings of the 19th international conference on World wide web
Separating the reputation and the sociability of online community users
Proceedings of the 2010 ACM Symposium on Applied Computing
Freshness matters: in flowers, food, and web authority
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
Analysing multimedia content in social networking environments
Proceedings of the 2010 ACM workshop on Social, adaptive and personalized multimedia interaction and access
Automatic image semantic interpretation using social action and tagging data
Multimedia Tools and Applications
QuestionHolic: Hot topic discovery and trend analysis in community question answering systems
Expert Systems with Applications: An International Journal
Competition-based user expertise score estimation
Proceedings of the 34th international ACM SIGIR conference on Research and development in Information Retrieval
Predicting discussions on the social semantic web
ESWC'11 Proceedings of the 8th extended semantic web conference on The semanic web: research and applications - Volume Part II
User reputation in a comment rating environment
Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining
I want to answer; who has a question?: Yahoo! answers recommender system
Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining
Impact and degree of user sociability in social media
Information Sciences: an International Journal
Analyzing and predicting question quality in community question answering services
Proceedings of the 21st international conference companion on World Wide Web
A classification-based approach to question routing in community question answering
Proceedings of the 21st international conference companion on World Wide Web
Modeling and exploiting heterogeneous bibliographic networks for expertise ranking
Proceedings of the 12th ACM/IEEE-CS joint conference on Digital Libraries
A framework for unsupervised spam detection in social networking sites
ECIR'12 Proceedings of the 34th European conference on Advances in Information Retrieval
Ranking User Influence in Healthcare Social Media
ACM Transactions on Intelligent Systems and Technology (TIST)
Automatic identification of best answers in online enquiry communities
ESWC'12 Proceedings of the 9th international conference on The Semantic Web: research and applications
Vote calibration in community question-answering systems
SIGIR '12 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval
Joint relevance and answer quality learning for question routing in community QA
Proceedings of the 21st ACM international conference on Information and knowledge management
Have you done anything like that?: predicting performance using inter-category reputation
Proceedings of the sixth ACM international conference on Web search and data mining
From amateurs to connoisseurs: modeling the evolution of user expertise through online reviews
Proceedings of the 22nd international conference on World Wide Web
The best answers? think twice: online detection of commercial campaigns in the CQA forums
Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
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
CQArank: jointly model topics and expertise in community question answering
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
User profiling for answer quality assessment in Q&A communities
Proceedings of the 2013 workshop on Data-driven user behavioral modelling and mining from social media
The perception of others: inferring reputation from social media in the enterprise
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing
Trust, but verify: predicting contribution quality for knowledge base construction and curation
Proceedings of the 7th ACM international conference on Web search and data mining
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Community Question Answering (CQA) has emerged as a popular forum for users to pose questions for other users to answer. Over the last few years, CQA portals such as Naver and Yahoo! Answers have exploded in popularity, and now provide a viable alternative to general purpose Web search. At the same time, the answers to past questions submitted in CQA sites comprise a valuable knowledge repository which could be a gold mine for information retrieval and automatic question answering. Unfortunately, the quality of the submitted questions and answers varies widely - increasingly so that a large fraction of the content is not usable for answering queries. Previous approaches for retrieving relevant and high quality content have been proposed, but they require large amounts of manually labeled data -- which limits the applicability of the supervised approaches to new sites and domains. In this paper we address this problem by developing a semi-supervised coupled mutual reinforcement framework for simultaneously calculating content quality and user reputation, that requires relatively few labeled examples to initialize the training process. Results of a large scale evaluation demonstrate that our methods are more effective than previous approaches for finding high-quality answers, questions, and users. More importantly, our quality estimation significantly improves the accuracy of search over CQA archives over the state-of-the-art methods.