Abstract
In recent years, the World Wide Web (WWW) has transformed to a gigantic social network where people interact and collaborate in diverse online communities. By using Web 2.0 tools, people contribute content and knowledge at a rapid pace. Knowledge-intensive social networks such as Q/A communities offer a great source of expertise for crowdsourcing applications. Companies desiring to outsource human tasks to the crowd, however, demand for certain guarantees such as quality that can be expected from returned tasks. We argue that the quality of crowd-sourced tasks greatly depends on incentives and the users’ dynamically evolving expertise and interests. Here we propose expertise mining techniques that are applied in online social communities. Our approach recommends users by considering contextual properties of Q/A communities such as participation degree and topic-sensitive expertise. Furthermore, we discuss prediction mechanisms to estimate answering dynamics considering a person’s interest and social preferences.
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References
Adamic, L.A., Zhang, J., Bakshy, E., Ackerman, M.S.: Knowledge sharing and yahoo answers: everyone knows something. In: WWW 2008, pp. 665–674. ACM, New York (2008)
Agichtein, E., Castillo, C., Donato, D., Gionis, A., Mishne, G.: Finding high-quality content in social media. In: WSDM 2008, pp. 183–194. ACM, New York (2008)
Artz, D., Gil, Y.: A survey of trust in computer science and the semantic web. J. Web Sem. 5(2), 58–71 (2007)
Becerra-Fernandez, I.: Searching for experts on the Web: A review of contemporary expertise locator systems. ACM Trans. Inter. Tech. 6(4), 333–355 (2006)
Brabham, D.: Crowdsourcing as a model for problem solving: An introduction and cases. Convergence 14(1), 75 (2008)
De Choudhury, M., Mason, W.A., Hofman, J.M., Watts, D.J.: Inferring relevant social networks from interpersonal communication. In: WWW 2010, pp. 301–310. ACM, New York (2010)
Golbeck, J.: Trust and nuanced profile similarity in online social networks. ACM Transactions on the Web 3(4), 1–33 (2009)
Gyongyi, Z., Koutrika, G., Pedersen, J., Garcia-Molina, H.: Questioning yahoo! answers. Technical Report 2007-35, Stanford InfoLab (2007)
Haveliwala, T.H.: Topic-sensitive pagerank. In: WWW 2002, pp. 517–526 (2002)
Horowitz, D., Kamvar, S.D.: The anatomy of a large-scale social search engine. In: WWW 2010, pp. 431–440. ACM, New York (2010)
Jurczyk, P., Agichtein, E.: Discovering authorities in question answer communities by using link analysis. In: CIKM 2007, pp. 919–922. ACM, New York (2007)
Kleinberg, J.M.: Authoritative sources in a hyperlinked environment. J. ACM 46(5), 604–632 (1999)
Kumar, R., Lifshits, Y., Tomkins, A.: Evolution of two-sided markets. In: WSDM 2010, pp. 311–320. ACM, New York (2010)
Page, L., Brin, S., Motwani, R., Winograd, T.: The PageRank Citation Ranking: Bringing Order to the Web. Tech. rep. (1998)
Schall, D., Dustdar, S.: Dynamic context-sensitive pagerank for expertise mining. In: Bolc, L., Makowski, M., Wierzbicki, A. (eds.) SocInfo 2010. LNCS, vol. 6430, pp. 160–175. Springer, Heidelberg (2010)
Skopik, F., Schall, D., Dustdar, S.: Modeling and mining of dynamic trust in complex service-oriented systems. Information Systems 35, 735–757 (2010)
Vázquez, A., Ao Gama Oliveira, J., Dezsö, Z., Goh, K.I., Kondor, I., Barabási, A.L.: Modeling bursts and heavy tails in human dynamics. Physical Review E 73(3), 36127+ (2006)
Weng, J., Lim, E.P., Jiang, J., He, Q.: Twitterrank: finding topic-sensitive influential twitterers. In: WSDM 2010, pp. 261–270. ACM, New York (2010)
Yahoo: Yahoo! answers - home, http://answers.yahoo.com (last access April 2011)
Yahoo: Yahoo! answers scoring system, http://answers.yahoo.com/info/scoring_system (last access April 2011)
Zhang, J., Ackerman, M.S., Adamic, L.: Expertise networks in online communities: structure and algorithms. In: WWW 2007, pp. 221–230. ACM, New York (2007)
Ziegler, C.N., Golbeck, J.: Investigating interactions of trust and interest similarity. Decision Support Systems 43(2), 460–475 (2007)
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Schall, D., Skopik, F. (2011). An Analysis of the Structure and Dynamics of Large-Scale Q/A Communities. In: Eder, J., Bielikova, M., Tjoa, A.M. (eds) Advances in Databases and Information Systems. ADBIS 2011. Lecture Notes in Computer Science, vol 6909. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23737-9_21
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DOI: https://doi.org/10.1007/978-3-642-23737-9_21
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