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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="2" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1 Introduction
</SectionTitle>
    <Paragraph position="0"> In recent years, the semantic web (Berners-Lee et al., 2001) has been evolving as the nextgeneration web technology and has attracted the attention of many researchers in database and knowledge engineering communities. In the semantic web, contributions obtained from fields related to databases frequently refer to ontology maintenance, reuse, and sharing. Based on the results from database research, this paper proposes a method to screen inconsistencies in ontologies by applying a natural language processing (NLP) technique, especially, those used for word sense disambiguation (WSD).</Paragraph>
    <Paragraph position="1"> Many reference books on WSD are available (e.g., (Manning and Schutze, 1999)). As for ontology integration, several approarches are proposed (Mitra et al., 2001)(Euzenat, 2001).</Paragraph>
    <Paragraph position="2"> In (Calvanese et al., 2001), global-centric (aka global-as-view) and local-centric (aka local-asview) approaches for an ontology integration framework are proposed, respectively. In this paper, we support the global-as-view approach for screening inconsistencies in ontology. In addition, (Calvanese et al., 2001) claims that queries over target ontologies should play a significant role because they represent every aspect of the terms described in each ontology.</Paragraph>
    <Paragraph position="3"> The terms in the global ontology can be viewed as the query over the local ontology, which describes a concept definition. On the other hand, ontology screening systems should be able to take advantage of some popular techniques for WSD, which is supposed to decide the right sense where the target word is used in a specific context. We claim that WSD is a promising method for determining which local ontology should be used for forming concepts for a global ontology. This paper contains a brief introduction of the global-centric approach, which is described in Section 2. In addition, we mention the inconsistencies in ontologies caused by words with multiple definitions. For example, the word gbassh is chosen, and we explain that some queries based on two of its definitions have concepts in the global ontology. After extracting new concepts by querying the global ontology, each local ontology is illustrated with DAML+OIL (DAML+OIL, 2001). Several inconsistencies in the ontology are presented in Section 3 over the global ontology, and the WSD for solving such inconsistencies are discussed.</Paragraph>
    <Paragraph position="4"> The final section is the conclusion.</Paragraph>
  </Section>
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