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Livia Chung

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    Livia Chung commented  · 

    For example: Books with subject heading that begins with "Law" generally discuss laws in a general and collective way, while "Obligations (Law)", "Civil law", "Press law", "Radio--Law and legislation" and so on discuss various laws individually. LCSH has thousands of subject headings that contain the word "law", i.e. if search criteria is set as Subject "is (exact)" in Primo VE, then the result will presumably include large number of materials that readers actually do not want. On March 24, 2023, a try was done with the same criteria and found a total of 1,650 materials. Taking the first 20 results as an example, only 6 bibs. are with subject headings that begin with the word "Law", i.e. the desirable hit rate is only 30%.

    Actually the above case occurs in hundreds of LCSH, e.g. "Disabilities", "Finance", "Artists" and " Criticism".

    Comparing with Title or Keyword search, the advantage of Subject search is high accuracy of results. However, Primo VE does not provide "Starts with" of Subject search, this greatly weakens its accuracy and on the other hand increases the burden of readers' screening. These days, we are facing a problem of too much information and therefore providing readers with accurate information is the most effective way to help them finding information.

    Livia Chung supported this idea  · 

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