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The Medline/full-text research project.

E J McKinin1, M Sievert, E D Johnson

  • 1University of Missouri-Columbia 65211.

Journal of the American Society for Information Science. American Society for Information Science
|May 1, 1991
PubMed
Summary
This summary is machine-generated.

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Full-text searching in medical databases like MEDIS and CCML retrieved more relevant articles than index terms in MEDLINE. However, full-text searches were less precise, often missing relevant documents due to natural language complexities.

Area of Science:

  • Medical Informatics
  • Information Retrieval

Background:

  • MEDLINE is a primary source for biomedical literature retrieval.
  • Full-text searching offers an alternative retrieval method.

Purpose of the Study:

  • To compare the retrieval efficacy of index terms versus full-text searching.
  • To evaluate document retrieval in MEDLINE journals with available full-text.

Main Methods:

  • Searched 100 clinical medical topics across MEDLINE, MEDIS, and CCML databases.
  • Compared the number of relevant articles retrieved by each search method.

Main Results:

  • Full-text searching identified significantly more relevant articles than MEDLINE's index terms.
  • Full-text searches exhibited lower precision compared to MEDLINE.

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  • Relevant articles missed in full-text were often due to natural language processing or restrictive search logic.

    • Conclusions:

    • Full-text searching enhances retrieval of relevant medical literature but requires careful search strategy development.
    • Index terms in MEDLINE remain valuable for precise retrieval.
    • The timeliness of journal content was comparable across MEDLINE and full-text databases.