Search (2 results, page 1 of 1)

  • × author_ss:"Pao, M.L."
  • × theme_ss:"Citation indexing"
  1. Pao, M.L.: Term and citation retrieval : a field study (1993) 0.01 
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    Abstract
    Investigates the relative efficacy of searching by terms and by citations in searches collected in health science libraries. In pilot and field studies the odds that overlap items retrieved would be relevant or partially relevant were greatly improved. In the field setting citation searching was able to add average of 24% recall to traditional subject retrieval. Attempts to identify distinguishing characteristics in queries which might benefit most from additional citation searches proved inclusive. Online access of citation databases has been hampered by their high cost
    Source
    Information processing and management. 29(1993) no.1, S.95-112
  2. Pao, M.L.; Worthen, D.B.: Retrieval effectiveness by semantic and citation searching (1989) 0.00 
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    Abstract
    A pilot study on the relative retrieval effectiveness of semantic relevance (by terms) and pragmatic relevance (by citations) is reported. A single database has been constructed to provide access by both descriptors and cited references. For each question from a set of queries, two equivalent sets were retrieved. All retrieved items were evaluated by subject experts for relevance to their originating queries. We conclude that there are essentially two types of relevance at work resulting in two different sets of documents. Using both search methods to create a union set is likely to increase recall. Those few retrieved by the intersection of the two methods tend to result in higher precision. Suggestions are made to develop a front-end system to display the overlapping items for higher precision and to manipulate and rank the union set sets retrieved by the two search modes for improved output
    Source
    Journal of the American Society for Information Science. 40(1989), S.226-235

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