Wikipedia-based query phrase expansion in patent class search

  title={Wikipedia-based query phrase expansion in patent class search},
  author={Bashar Al-Shboul and Sung-Hyon Myaeng},
  journal={Information Retrieval},
Relevance feedback methods generally suffer from topic drift caused by word ambiguities and synonymous uses of words. Topic drift is an important issue in patent information retrieval as people tend to use different expressions describing similar concepts causing low precision and recall at the same time. Furthermore, failing to retrieve relevant patents to an application during the examination process may cause legal problems caused by granting an existing invention. A possible cause of topic… CONTINUE READING


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