Information retrieval with concept-based pseudo-relevance feedback in MEDLINE

  title={Information retrieval with concept-based pseudo-relevance feedback in MEDLINE},
  author={Vahid Jalali and Mohammad Reza Matash Borujerdi},
  journal={Knowledge and Information Systems},
Although using domain specific knowledge sources for information retrieval yields more accurate results compared to pure keyword-based methods, more improvements can be achieved by considering both relations between concepts in an ontology and also their statistical dependencies over the corpus. In this paper, an innovative approach named concept-based pseudo-relevance feedback is introduced for improving accuracy of biomedical retrieval systems. Proposed method uses a hybrid retrieval… CONTINUE READING

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Key Quantitative Results

  • Experimental results on MEDLINE documents (in OHSUMED collection) show 21% improvement over keyword-based approach in terms of mean average precision, which is a noticeable gain.


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