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- W2048448151 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." @default.
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- W2048448151 date "1977-05-01" @default.
- W2048448151 modified "2023-09-24" @default.
- W2048448151 title "Input-output relationships in on-line bibliographic searching" @default.
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- W2048448151 doi "https://doi.org/10.1002/asi.4630280303" @default.
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