Modelling and forecasting contact time as a measure of item informativeness |
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| Authors: | Jean Tague-Sutcliffe |
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| Affiliation: | 1. School of Library and Information Science, University of Western Ontario, N6G 1H1, London, Ontario, (Canada)
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| Abstract: | The value or informativeness of an item in a library collection or database has been measured by its frequency of circulation or access. This paper presents a more discriminating measure, user contact time, and develops a model for its distribution over users and over time. The model is applied to the problem of predicting future informativeness of an item. |
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