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<Paper uid="E99-1013">
  <Title>Complementing WordNet with Roget's and Corpus-based Thesauri for Information Retrieval</Title>
  <Section position="7" start_page="99" end_page="99" type="concl">
    <SectionTitle>
7 Conclusions
</SectionTitle>
    <Paragraph position="0"> We have proposed the use of different types of thesaurus for query expansion. The basic idea underlying this method is that each type of thesaurus has different characteristics and combining them provides a valuable resource to expand the query.</Paragraph>
    <Paragraph position="1"> Wrong expansion terms can be avoided by designing a weighting term method in which the weight of expansion terms not only depends on all query terms, but also depends on their similarity values in all type of thesaurus.</Paragraph>
    <Paragraph position="2"> Future research will include the use of a parser with better performance and the use of more recent term weighting methods for indexing.</Paragraph>
  </Section>
class="xml-element"></Paper>