The profile-query relationship

This research defines the relationship between a user profile and a user query in terms of the relationship between the clusters of documents that are retrieved by the profile and by the query, respectively. The document clusters were generated by performing retrieval at various threshold levels on profiles and related queries. Profiles were artificially generated based on documents by an author. Queries were artificially generated to cover the full range of the relationship as defined by the cosine similarity measure. The resulting clusters were examined and it was found that, given a desired retrieval threshold, cluster similarity and cluster overlap can be expressed as linear functions of the similarity existing between the original pairs of profiles and queries. © 1986 John Wiley & Sons, Inc.

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