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Input‐output relationships in on‐line bibliographic searching

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  • Michael D. Cooper

Abstract

A methodology is proposed to aid in system design and evaluation of on‐line bibliographic search systems. It uses multiple linear regression analysis to ascertain if there is a relationship between measures of search out‐put (such as cost‐effectiveness and cost) and input (such as the characteristics of the search‐number of descriptors used, number of Boolean operators, charateristics of the requestor, and characteristics of the searcher). Four measures of cost‐effectiveness and cost alone are pre‐sented and their values are calculated using empirical data from the DIALOG system for a sample of searches. From the sample data it is concluded that the cost‐effectiveness measures are not sensitive to input‐variable changes. In contrast, there is a good statistical relation between the cost of an on‐line search and the value of the input variables.

Suggested Citation

  • Michael D. Cooper, 1977. "Input‐output relationships in on‐line bibliographic searching," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 28(3), pages 153-160, May.
    • Handle: RePEc:bla:jamest:v:28:y:1977:i:3:p:153-160
    DOI: 10.1002/asi.4630280303
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