On Measuring Similarity for Conceptual Querying
نویسندگان
چکیده
The focus of this paper is approaches to measuring similarity for application in connection with query evaluation. Rather than only comparing at the level of words the issue here is to compare concepts that appear as compound expressions derived from list of words through brief natural language analysis. Concepts refers to and are compared with respect to an ontology describing the domain of the database. We discuss three different principles for measuring similarity between concepts. One in the form of subsumption expansion of concepts and two as different measures of distance in a graphical representation of an ontology.
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تاریخ انتشار 2002