Abstract
Community Question Answering (CQA) sites are becoming increasingly important source of information where users can share knowledge on various topics. Although these platforms bring new opportunities for users to seek help or provide solutions, they also pose many challenges with the ever growing size of the community. The sheer number of questions posted everyday motivates the problem of routing questions to the appropriate users who can answer them. In this paper, we propose an approach to predict the best answerer for a new question on CQA site. Our approach considers both user interest and user expertise relevant to the topics of the given question. A user’s interests on various topics are learned by applying topic modeling to previous questions answered by the user, while the user’s expertise is learned by leveraging collaborative voting mechanism of CQA sites. We have applied our model on a dataset extracted from StackOverflow, one of the biggest CQA sites. The results show that our approach outperforms the TF-IDF based approach.
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References
Liu, Y., Bian, J., Agichtein, E.: Predicting information seeker satisfaction in community question answering. In: SIGIR, pp. 483–490 (2008)
Liu, Q., Agichtein, E., Dror, G., Gabrilovich, E., Maarek, Y., Pelleg, D., Szpektor, I.: Predicting web searcher satisfaction with existing community-based answers. In: SIGIR, pp. 415–424 (2011)
Liu, X., Croft, W.B., Koll, M.B.: Finding experts in community-based question-answering services. In: CIKM, pp. 315–316 (2005)
Bouguessa, M., Dumoulin, B., Wang, S.: Identifying authoritative actors in question-answering forums: the case of yahoo! answers. In: KDD, pp. 866–874 (2008)
Qu, M., Qiu, G., He, X., Zhang, C., Wu, H., Bu, J., Chen, C.: Probabilistic question recommendation for question answering communities. In: WWW, pp. 1229–1230 (2009)
Liu, Q., Agichtein, E.: Modeling answerer behavior in collaborative question answering systems. In: Clough, P., Foley, C., Gurrin, C., Jones, G.J.F., Kraaij, W., Lee, H., Mudoch, V. (eds.) ECIR 2011. LNCS, vol. 6611, pp. 67–79. Springer, Heidelberg (2011)
Liu, M., Liu, Y., Yang, Q.: Predicting best answerers for new questions in community question answering. In: Chen, L., Tang, C., Yang, J., Gao, Y. (eds.) WAIM 2010. LNCS, vol. 6184, pp. 127–138. Springer, Heidelberg (2010)
Riahi, F., Zolaktaf, Z., Shafiei, M., Milios, E.: Finding expert users in community question answering. In: Proceedings of the 21st International Conference Companion on World Wide Web, pp. 791–798. ACM (2012)
Wang, S., Lo, D., Jiang, L.: An empirical study on developer interactions in stackoverflow. In: 28th ACM Symposium on Applied Computing (2013)
Xia, X., Lo, D., Wang, X., Zhou, B.: Tag recommendation in software information sites. In: Proceedings of the Tenth International Workshop on Mining Software Repositories, pp. 287–296. IEEE Press (2013)
Berger, A., Caruana, R., Cohn, D., Freitag, D., Mittal, V.: Bridging the lexical chasm: Statistical approaches to answer-finding. In: Proceedings of the 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (2000)
Blei, D.M., Ng, A.Y., Jordan, M.I., Lafferty, J.: Latent dirichlet allocation. Journal of Machine Learning Research 3, 2003 (2003)
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Tian, Y., Kochhar, P.S., Lim, EP., Zhu, F., Lo, D. (2014). Predicting Best Answerers for New Questions: An Approach Leveraging Topic Modeling and Collaborative Voting. In: Nadamoto, A., Jatowt, A., Wierzbicki, A., Leidner, J.L. (eds) Social Informatics. SocInfo 2013. Lecture Notes in Computer Science, vol 8359. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55285-4_5
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DOI: https://doi.org/10.1007/978-3-642-55285-4_5
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