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<Paper uid="W04-0505">
  <Title>BioGrapher: Biography Questions as a Restricted Domain Question Answering Task</Title>
  <Section position="9" start_page="0" end_page="0" type="concl">
    <SectionTitle>
8 Conclusion
</SectionTitle>
    <Paragraph position="0"> In this paper we have addressed the problem of biographical question answering. The main challenge in this restricted domain is the fact that the available collections of biography documents are (unavoidably) too small to admit answering all biographical questions. We use the web as a backoff source for finding biography-like documents from which to extract answers in case a given biography collection does not contain information about the question target. We demonstrated the benefits of integrating a text classifier into a restricted domain QA system as a filter to web retrieval. Finally, we believe that the use of text classifiers can be beneficial for definitional QA, especially for identifying documents from which the final answer should be extracted. Future work will address the weakness of the current implementation: improved biography classification and improved answer extraction from biography-like documents.</Paragraph>
  </Section>
class="xml-element"></Paper>