Skip to main content

Early Detection of Potential Experts in Question Answering Communities

  • Conference paper
Book cover User Modeling, Adaption and Personalization (UMAP 2011)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 6787))

Abstract

Question answering communities (QA) are sustained by a handful of experts who provide a large number of high quality answers. Identifying these experts during the first few weeks of their joining the community can be beneficial as it would allow community managers to take steps to develop and retain these potential experts. In this paper, we explore approaches to identify potential experts as early as within the first two weeks of their association with the QA. We look at users’ behavior and estimate their motivation and ability to help others. These qualities enable us to build classification and ranking models to identify users who are likely to become experts in the future. Our results indicate that the current experts can be effectively identified from their early behavior. We asked community managers to evaluate the potential experts identified by our algorithm and their analysis revealed that quite a few of these users were already experts or on the path of becoming experts. Our retrospective analysis shows that some of these potential experts had already left the community, highlighting the value of early identification and engagement.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bouguessa, M., Dumoulin, B., Wang, S.: Identifying authoritative actors in question-answering forums: the case of Yahoo! answers. In: ACM International Conference on Knowledge Discovery and Data Mining, KDD, pp. 866–874 (2008)

    Google Scholar 

  2. Cortes, C., Vapnik, V.: Support-Vector Networks. Journal of Machine Learning, 273–297 (1995)

    Google Scholar 

  3. Jurczyk, P., Agichtein, E.: Discovering authorities in question answer communities by using link analysis. In: ACM International Conference on Information and Knowledge Management, CIKM, pp. 919–922 (2007)

    Google Scholar 

  4. Lawrence, P., Brin, S., Motwani, R., Winograd, T.: The PageRank Citation Ranking: Bringing Order to the Web. Technical Report, Stanford InfoLab (1999)

    Google Scholar 

  5. Pal, A., Konstan, J.A.: Expert identification in community question answering: exploring question selection bias. In: ACM International Conference on Information and Knowledge Management, CIKM, pp. 1505–1508 (2010)

    Google Scholar 

  6. Panciera, K., Halfaker, A., Terveen, L.: Wikipedians are born, not made: a study of power editors on Wikipedia. In: ACM International Conference on Supporting Group Work, GROUP, pp. 51–60 (2009)

    Google Scholar 

  7. Platt, J.C.: Fast training of support vector machines using sequential minimal optimization. In: Advances in Kernel Methods, pp. 185–208. MIT Press, Cambridge (1999)

    Google Scholar 

  8. Quinlan, J.R.: C4.5: programs for machine learning. Morgan Kaufmann Publishers Inc., San Francisco (1993)

    Google Scholar 

  9. Zhang, J., Ackerman, M.S., Adamic, L.: Expertise networks in online communities: structure and algorithms. In: ACM International Conference on World Wide Web, WWW, pp. 221–230 (2007)

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2011 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Pal, A., Farzan, R., Konstan, J.A., Kraut, R.E. (2011). Early Detection of Potential Experts in Question Answering Communities. In: Konstan, J.A., Conejo, R., Marzo, J.L., Oliver, N. (eds) User Modeling, Adaption and Personalization. UMAP 2011. Lecture Notes in Computer Science, vol 6787. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-22362-4_20

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-22362-4_20

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-22361-7

  • Online ISBN: 978-3-642-22362-4

  • eBook Packages: Computer ScienceComputer Science (R0)

Publish with us

Policies and ethics