Article thumbnail
Location of Repository

By Alexander Pretschner Ý and Technische Universität München

Abstract

With the exponentially growing amount of information available on the Internet, the task of retrieving documents of interest has become increasingly difficult. Search engines usually return more than 1,500 results per query, yet out of the top twenty results, only one half turn out to be relevant to the user. One reason for this is that Web queries are in general very short and give an incomplete specification of individual users ’ information needs. This paper explores ways of incorporating users ’ interests into the search process to improve the results. The user profiles are structured as a concept hierarchy of 4,400 nodes. These are populated by ‘watching over a user’s shoulder ’ while he is surfing. No explicit feedback is necessary. The profiles are shown to converge and to reflect the actual interests quite well. One possible deployment of the profiles is investigated: re-ranking and filtering search results. Increases in performance are moderate but noticeable and show that fully automatic creation of large hierarchical user profiles is possible

Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.112.1613
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www.cs.utexas.edu/~fern... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.