Hierarchical expansion for concept-based search Academic Article uri icon


  • Although many digital libraries are indexed using a hierarchical conceptual structure, improving the performance of traditional free text search is not trivial. We present a preliminary evaluation of a novel method of a hierarchical concept based search, as implemented in the Vaidurya search engine, with the innovation of using automated query mapping. Using MetaMap, textual query is mapped into MeSH concepts, which are later abstracted. Preliminary encouraging evaluation results on the TREC Genomics 2004 test collection are presented.

publication date

  • January 1, 2007