NetExpert: Agent-Based Expertise Location by Means of Social and Knowledge Networks

  • Ramon Sangüesa
  • Josep M. Pujol


Locating expertise sources in a community of interest or practice is a critical need for distributed organizations. Usually expertise location is done through the use of personal social or knowledge networks and involves aspects such as trust and reputation. However, and especially in distributed organizations relying on communication technologies for cooperation, each member of a community is just aware of its own personal social or knowledge network. This makes difficult to get to know other potential experts in the community which may pertain to other members’ networks. NetExpert is an agent-based expertise location system that replicates the process of social and knowledge network building at community or organization level. In so doing it is able to connect several networks and put into contact expertise that otherwise would remain hidden.


Software agents multiagent systems assistant agents expertise location social networks knowledge networks collaborative systems knowledge mapping knowledge management 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Ackerman, M. S. and McDonald, D. W. (1996). Answer Garden 2: Merging Organizational Memory with collaborative help. In Computer Supported Cooperative Work, pages 97–105.Google Scholar
  2. Adamic, L. (1999). The Small World Web. In Abiteboul, S. and Vercoustre, A.-M., editors, Proc. 3rd European Conf. Research and Advanced Technology for Digital Libraries, ECDL, number 1696. Springer-Verlag.Google Scholar
  3. Borghoff, U. M. and Pareschi, R. (1998). Information Technology Support for Knowledge Management. Springer-Verlag.Google Scholar
  4. Contractor, N., Zink, D., and Chan, M. (1998). IKNOW: A tool to assist and study the creation, maintenance, and dissolution of knowledge networks. In Ishida, T., editor, Community Computing and Support Systems, number 1519 in Lecture Notes in Computer Science, pages 201–217, Berlin. Springer-Verlag.CrossRefGoogle Scholar
  5. Fava, M. (2001). Construcciö automàtica de thesaurus mitjantcant xarxes bayesianes. Master’s thesis, Technical University of CataloniaGoogle Scholar
  6. FIPA (2001). FIPA. Foundation for Intelligent Physical Agents. Available at Scholar
  7. Garcia, R. (2001). Extensiöcol.laborativadel servei de localitzaciö d’expertesa. Master’s thesis, Technical University of Catalonia.Google Scholar
  8. JATLite (2001). Java Agent Template, Lite. Stanford University. Available at
  9. Kautz, H., Selman, B., and Shah, M. (1997). The hidden web. AI Magazine, (18).Google Scholar
  10. Liao, M., Hinkelmann, K., Abecker, A., and Sintek, M. (1999). A Competence Knowledge Based System as Part of the Organizational Memory. In on Artificial Intelligence, L. N., editor, Proceedings of the 5th Biannual German Conference on Knowledge-Based Systems, number 1570, pages 125–137.Google Scholar
  11. McDonald, D. W. and Ackerman, M. S. (1998). Just Talk To Me: A Field Study of Expertise Location. In Proc. Conference on Computer-Supported Cooperative Work (CSCW’98), Seattle, pages 315–324. ACM Press.Google Scholar
  12. McDonald, D. W. and Ackerman, M. S. (2000). Expertise recommender: a flexible recommendation system and architecture. In Proceedings of the ACM 2000 Conference on Computer Supported Cooperative Work, CSCW, pages 231–240, Philadelphia.Google Scholar
  13. Pujol, J. M. (2000). NetExpert: Localitzador d’expertesa. Master’s thesis, Technical University of Catalonia.Google Scholar
  14. Pujol, J. M. and Sangüesa, R. (2001). Reputation Measures for Expertise Location Agents by means of Social Networks. In Proceedings of the 4th Congrès Català de Intel.ligència Artificial, pages 205–213.Google Scholar
  15. Resnick, P. and Varian, H. (1997). Recommender systems. Communications of the ACM, 40(3):56–58.CrossRefGoogle Scholar
  16. Salton, G. and McGill, M. J. (1983). Introduction to Modern Information Retrieval. McGraw-Hill.Google Scholar
  17. Sangüesa, R., Vázquez, A., and Vázquez, J. (2000). ACE: a multiagent recommender system using mixed collaborative and cognitive filtering. In Proceedings of the WARS 2000, Workshop on Agent-based Recommender Systems.Google Scholar
  18. Shardanand, U. and Maes, P. (1995). Social Information Filtering: Algorithms for automating “word of mouth”. In Proceedings of the Conference in Human Factors in Computer Systems (CHV’95), pages 210–217.Google Scholar
  19. Terveen, L., Hill, W., Amento, B., McDonald, D., and Creeter, J. (1997). Phoaks: a System for Sharing Recommendations. Communications of the ACM, 40(3):59–62.CrossRefGoogle Scholar
  20. Vázquez, A., Vázquez, J., Barrio, I., Pujol, J. M., and Sangüesa, R. (2001). The Collaboratory. Technical Report LSI-01-22-R., Technical University of Catalonia.Google Scholar
  21. Vivacqua, A. S. (1999). Agents for expertise location. In Proceedings of the 1999 AAAI Spring Symposium on Intelligent Agents in Cyberspace.Google Scholar
  22. Watts, D. J. and Strogatz, S. H. (1998). Collective dynamics of ’small-world’ networks. Nature, (393):440–442.CrossRefGoogle Scholar
  23. Wenger, E. (1999). Communities of Practice: Learning, Meaning, Identity. Cambridge University Press.Google Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Ramon Sangüesa
    • 1
  • Josep M. Pujol
    • 1
  1. 1.Software DepartmentUniversitat Politècnica de Catalunya (UPC)BarcelonaSpain

Personalised recommendations