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<Paper uid="N04-4016">
  <Title>Correction Grammars for Error Handling in a Speech Dialog System</Title>
  <Section position="7" start_page="0" end_page="0" type="evalu">
    <SectionTitle>
6 Experiments
</SectionTitle>
    <Paragraph position="0"> We carried out an experiment to verify whether the proposed method works properly in a dialog system. In this experiment, dialog systems with and without the error handling method were compared. In this experiment, a weather information dialog was selected as the task for the subjects and about 1200 dialog instances were analyzed (both with and without error handling). The dialog flow was the same as shown in  names, and 69 words for the date. The subjects were instructed in advance on the utterance patterns allowed by the system, and used only those patterns during the experiment. A summary of the collected data is shown in Table 1. When error handling is disabled, the system returns to the place name query when the user denies the system's confirmation, e.g. it returns from U3 to S1 in  two systems is shown in Table 2. &amp;quot;1 error&amp;quot; in Table 2 means that the dialog included one error and &amp;quot;2 errors&amp;quot; means that the same error was repeated.</Paragraph>
    <Paragraph position="1"> The success rate for the task and the average number of turns in the dialog (including errors) are tabulated. Dialogs including more than 3 errors were regarded as incomplete tasks in the calculation of the success rate. The results are shown in Table 3.</Paragraph>
    <Paragraph position="2">  inserting slot values into a template</Paragraph>
  </Section>
class="xml-element"></Paper>