Document (#6714)

Author
Ellis, D.
Furner-Hines, J.
Willett, P.
Title
Measuring the degree of similarity between objects in text retrieval systems
Source
Perspectives in information management. 3(1993) no.2, S.128-149
Year
1993
Abstract
Describes the use of a variety of similarity coefficients in the measurement of the degree of similarity between objects that contain textual information, such as documents, paragraphs, index terms or queries. The work is intended as a preliminary to future investigation of the calculations involved in measuring the degree of similarity between structured objects that may be represented by graph theoretic forms. Descusses the role of similarity coefficients in text retrieval in terms of: document and query similarity; document and document similarity; cocitation analysis; term and term similarity; and the similarity between sets of judgements, such as relevance judgements. Describes several methods for expressing the formulae used to define similarity coefficients and compares their attributes. Concludes with details the characteristics of similarity coefficients; equivalence and monotonicity; consideration of negative matches; geometric analyses; and the meaning of correlation coefficients

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  4. Kirriemuir, J.W.; Willet, P.: Identification of duplicate and near-duplicate full-text records in database search-outputs using hierarchic cluster analysis (1995) 0.27
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  5. Rorissa, A.: Relationships between perceived features and similarity of images : a test of Tversky's contrast model (2007) 0.27
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