Collaborative Annotation for Pseudo Relevance Feedback

  title={Collaborative Annotation for Pseudo Relevance Feedback},
  author={Christina Lioma and Marie-Francine Moens and Leif Azzopardi},
We present a pseudo relevance feedback technique for information retrieval, which expands keyword queries with semantic annotation found in the freely available collaborative tagging system. We hypothesise that collaborative tags represent semantic information that may render queries more informative, and hence enhance retrieval performance. Experiments with three different techniques of enriching queries with tags, and also varying the number of tags used for expansion… CONTINUE READING