Context-Based Topic Models for Query Modification

  title={Context-Based Topic Models for Query Modification},
  author={W. Bruce Croft and Xing Wei},
User context, which includes information such as models of user background or interests, is currently a popular research topic in information retrieval (IR), but it is still not clear what its benefits are. This paper demonstrates an empirical upper bound on the potential improvement that context techniques based on modeling the long-term interests of users could achieve. We do this by simulating a user model with a manually selected topic model for each query, and using the topic model to… CONTINUE READING