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Relevance weighting using distance between term occurrences

Hawking, David; Thistlewaite, Paul


Recent work has achieved promising retrieval performance using distance between term occurrences as a primary estimator of document relevance. A major benefit of this approach is that relevance scoring does not rely on collection frequency statistics. A theoretical framework for lexical spans is now proposed which encompasses these approaches and suggests a number of important directions for future experimental work. Based on the formalism, approaches to issues such as scoring partial spans,...[Show more]

CollectionsANU Research Publications
Date published: 1996
Type: Working/Technical Paper


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