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<Paper uid="W97-1302">
  <Title>Constraints and Defaults on Zero Pronouns in Japanese Instruction Manuals</Title>
  <Section position="6" start_page="10" end_page="10" type="evalu">
    <SectionTitle>
6 Results
</SectionTitle>
    <Paragraph position="0"> The constraints and defaults we proposed here and their precision are summarized as Table 1.</Paragraph>
    <Paragraph position="1"> Note that this table shows that each default rule is strong enough for anaphora resolution of zero SUB-JECT if it is applicable. Therefore, we have to examine the total performance of our method, that is, have to verify what percentage of zero SUBJECTS in manuals are correctly determined with our defaults.</Paragraph>
    <Paragraph position="2"> In order for the verification, we examined the estimate by our defaults with 9 test example manuals, which contain 740 sentences. Table 2 shows the result of the verification. Here, the term 'Restricted' shows that the candidate of SUBJECT is correctly restricted by Default 8.</Paragraph>
    <Paragraph position="3"> As the table shows, our defaults successfully determine zero SUBJECTS in manuals with the precision of over 80%. It is remarkable that the rate of wrong judgment is only 2.5%. Since almost all zero SUBJECTS which cannot be resolved by our defaults are still undetermined, it is possible to improve the precision by adding new defaults/constraint, combining other methods of zero pronoun resolution, and so on.</Paragraph>
  </Section>
class="xml-element"></Paper>