Document (#20952)

Author

Bodoff, D.

Title

¬A re-unification of two competing models for document retrieval

Source

Journal of the American Society for Information Science. 50(1999) no.1, S.49-64

Year

1999

Abstract

2 competing approaches for document retrieval were first identified by Robertson, Maron and Cooper (1982) for probabilistic retrieval. The difficulty of unifying those approaches was introduced as a problem of resolving query-focused with document-focused retrieval, and an approach towards unification was offered. That approach rests on a re-conceptualization of the meaning of terms weight estimates. In this work, we propose a new unified model. The unification problem is re-framed as resulting from a lack of theory regarding the relationship to 2 sorts of data, absolute and relative. This new unified model is valid even for traditional interpretations of term estimates

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