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<Paper uid="P98-2168">
  <Title>A Computational Model of Social Perlocutions</Title>
  <Section position="7" start_page="1024" end_page="1024" type="evalu">
    <SectionTitle>
6 Limitations and Future
</SectionTitle>
    <Paragraph position="0"> Work The model currently has three major limitations. First, it does not cover all aspects of social interactions. For example, it does not have conditions or effects involving the relative status of the speaker and hearer, or specialized roles they might play (e.g., judge, employer, and so on). Second, the conditions on exactly when effects occur need to be elaborated significantly. Finally, there are socially-related speech acts we have not yet represented (e.g., expressing sadness, joy, and so on).</Paragraph>
    <Paragraph position="1"> The primary implementation limitation involves the background information required to determine whether various conditions hold. Currently, the implementation does not query the user for all the background information it could take advantage of.</Paragraph>
    <Paragraph position="2"> The reason is that too many queries makes the program loses its appeal as a work-saving device. A related limitation is that its model of the speaker's goals is static, rather than dynamic (e.g., the speaker is always assumed to have a goal of being polite). We are addressing both of these problems by exploring techniques for forming a detailed user profile and applying across a large set of generated letters. The other important limitation is that its organizational and text templates are not particularly flexible (e.g., they demand a specific speech act order and they realize each speech act as a single sentence). One way to address this problem is to take the set of speech acts that LetterGen wants to generate as a goal and to plan exactly how they will be realized (Hovy, 1993; Moore and Paris, 1994; Hobbs, 1982).</Paragraph>
    <Paragraph position="3"> One interesting area for future exploration is the problem of applying the model to letter understanding as well as generation. This problem is potentially difllcult, as there are a variety of social reasons why a particular speech act might have appeared. For example, the thanking act might have been included in the example of Figure 1 in order to lessen the social debt the invites owes to the inviter, or to avoid insulting the inviter through curtness, or to make the invites feel that he is a polite person, or simply out of habit.</Paragraph>
  </Section>
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