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A Unifying Semantic Distance Model for Determining the Similarity Of Attribute Values

By John Roddick, Kathleen Hornsby and Denise Vries


The relative difference between two data values is of interest in a number of application domains including temporal and spatial applications, schema versioning, data warehousing (particularly data preparation), internet searching, validation and error correction, and data mining. Moreover, consistency across systems in determining such distances and the robustness of such calculations is essential in some domains and useful in many. Despite this, there is no generally adopted approach to determining such distances and no accommodation of distance within SQL or any commercially available DBMS

Topics: Semantic distance, difference measures
Year: 2003
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