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<Paper uid="P96-1035">
  <Title>Resolving Anaphors in Embedded Sentences</Title>
  <Section position="3" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1 Introduction
</SectionTitle>
    <Paragraph position="0"> Intrasentential antecedents, i.e., antecedents occurring in the same sentence as the anaphor, are a crucial issue for the anaphora resolution method. The main problem is to determine the constraints that intrasentential phrases must respect in anaphoric relations. These constraints are used to determine relations between a given anaphor and its antecedents.</Paragraph>
    <Paragraph position="1"> Until now, this kind of constraint has been tackled mainly in terms of syntactic aspects, see (Lappin and Leass, 1994) (Merlo, 1993) and (Hobbs, 1985). We propose to consider new kinds of criteria that combine semantic restrictions with sentence structure.</Paragraph>
    <Paragraph position="2"> One of these criteria is, for example, the way in which the verb meaning influences the sentence structure, then the way in which the sentence structure influences the anaphoric relations between intrasentential phrases. The structure we studied is the embedded sentence structure. Indeed, an important assumption we have made is that embedded sentences favour the occurrence of intrasentential antecedents. We exploit the focusing mechanism proposed by Sidner (Sidner, 1979) (Sidner, 1981) (Sialher, 1983) extending and refining her algorithms.</Paragraph>
    <Paragraph position="3"> The algorithm is designed for anaphors generally, even if we focus mainly on pronouns in this paper.</Paragraph>
    <Paragraph position="4"> Indeed, the distinction between different kinds of anaphors is made at the level of anaphor interpretation rules. These resolution rule aspects will not be developed here; though they have been developed in the literature, e.g., see (Carter, 1987), and (Sidner, 1981) (Sidner, 1983). We focus more on the mechanisms that handle these different kinds of rules.</Paragraph>
    <Paragraph position="5"> We first present how intrasentential antecedents occur in embedded sentences. We recall the main ideas of the focusing approach, then expand on the main hypotheses which led the design of the anaphora resolution algorithm.</Paragraph>
  </Section>
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