Resolving Terminological Heterogeneity In Ontologies

A system that enables interoperation among information sources using ontologies needs to resolve the terminological differences between ontologies. In this work, we present several methods that we have designed to match terms used in different ontologies. We have implemented two methods based on linguistic similarities of terms used in the ontologies. The first looks up a dictionary or semantic network like WordNet and the second determines similarities of words based on word similarity compuoed from a domain-specific corpus of documents. We discuss our experiments that indicate that a method that uses both heuristics produces good results