A re-unification of two competing models for document retrieval

✍ Scribed by Bodoff, David

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 174 KB
• Volume: 50
• Category: Article
• ISSN: 0002-8231
• DOI: 10.1002/(sici)1097-4571(1999)50:1<49::aid-asi7>3.0.co;2-9

✦ Synopsis

Two competing approaches for document retrieval were first identified by Robertson, Maron, & 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 term 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 of two sorts of data, absolute and relative. This new unified model is valid even for traditional interpretations of term estimates.