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<Paper uid="W02-1711">
  <Title>A Proposal for Screening Inconsistencies in Ontologies based on Query Languages using WSD</Title>
  <Section position="4" start_page="3" end_page="3" type="concl">
    <SectionTitle>
4 Conclusion
</SectionTitle>
    <Paragraph position="0"> In this paper, we described a perspective for the mapping between the global and the local ontologies based on (Calvanese et al., 2001). We support the global-as-view approach for maintaining the global ontology. This approach is thought to be promising, but it has some unsolved problems concerning inconsistencies in ontologies. Word sense disambiguation, called WSD, can provide one clue for solving these problems because it draws certain close relationships among words appearing as property values or concept definitions. In contrast to (Calvanese et al., 2001), we proposed two situations in which there is ontology inconsistency because one word has multiple meanings: the first case was that of a query based on the wrong choice of meaning for a word, and the second situation involved the inability to use WSD to decide the meaning of a concept. To solve these problems, more precise disambiguation methods should be developed in WSD, or more elaborate representations should be provided for the constraints in ontology definitions. On the other hand, the ontology screening system proposed in this paper can be easily implemented using query engines (e.g., (RQL, 1994)(RDFQL, 2000)(Miller, 2001)(JENA, 2001) based on RDF Query (RDFQuery, 1998) as one of the alternatives. A query language must play a crucial role in the formation of concepts and the screening for inconsistencies over intended ontologies. In the semantic web world, we believe that screening for inconsistencies in ontologies will become critical and that the use of NLP methods like WSD to screen for inconsistencies will offer a significant contribution.</Paragraph>
  </Section>
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