Document (#7818)

Author
Pao, M.L.
Title
Relevance odds of retrieval overlaps from seven search fields
Source
Information processing and management. 30(1994) no.3, S.305-314
Year
1994
Abstract
Data contained in a 1982 paper were analyzed in terms of relevance odds of common items retrieved by searching any two content-bearing search fields. While the 1982 study compared the relatice retrieval performance of 7 search fields, the present study shows that duplicate documents retrieval by the use of terms from any two of the fields would have higher odds being judges relevant than those retrieved by only one of the fields. 63 relevance odds were computed using the log cross product technique. The highest relevance odds were associated with common items retrieved from assigned descriptors and from truncated free text terms from either the title or abstract fields; their relevance odds were 19 to 2 in favour of overlaps. Overlap retrieval could be considered a strategy for high precision searching

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  5. Pao, M.L.; Worthen, D.B.: Retrieval effectiveness by semantic and citation searching (1989) 0.22
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