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<Paper uid="E99-1030">
  <Title>The Development of Lexical Resources for Information Extraction from Text Combining WordNet and Dewey Decimal Classification*</Title>
  <Section position="6" start_page="226" end_page="227" type="concl">
    <SectionTitle>
5 Conclusion
</SectionTitle>
    <Paragraph position="0"> Up to now experiments have been carried on in the financial domain, and in particular in the domain of bonds issued by banks. Experiments are continuing. The construction of WN+DDC is a long process that has to be done in general. Up to now we have just started inserting in WordNet the field labels that are interesting for the domain  under analysis. If the final experiments will confirm the usefulness of the approach, we will extend the integration to the rest of the WordNet hierarchy. The final evaluation will include a comparison of the lexicon produced by using WN+DDC with a normally developed lexicon in the domain of bond-issue (Ciravegna et el., 1999). The evaluation will consider both quality and quantity of terms and development time of the whole lexicon.</Paragraph>
    <Paragraph position="1"> One of the issues that we are currently investigating is that of choosing the correct set of field labels from DDC: DDC is very detailed and it is not worth integrating it completely with Word-Net. It is necessary to individuate the correct set of labels by pruning the DDC hierarchy at some level. We are currently investigating the effectiveness of just selecting the first three levels of the hierarchy.</Paragraph>
  </Section>
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