Performance testing of a book and its index as an information retrieval system

Bruce C. Bennion

Journal of the American Society for Information Science, 1980, vol. 31, issue 4, 264-270

Abstract: The retrieval performance of book indexes can be measured in terms of their ability to direct a user selectively to text material whose identity but not location is known. The method requires human searchers to base their searching strategies on actual passages from the book rather than on test queries, natural or contrived. It circumvents the need for relevance judgment, but still yields performance indicators that correspond approximately to the recall and precision ratios of large document retrieval system evaluation. A preliminary application of the method to the subject indexing of two major encyclopedias showed one encyclopedia apparently superior in both the finding and discrimination abilities of retrieval performance. The method is presently best suited for comparative testing since its ability to yield absolute or reproducible measures is as yet not established.

Date: 1980
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