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<Paper uid="W02-1702">
  <Title>Cascading XSL filters for content selection in multilingual document generation</Title>
  <Section position="6" start_page="0" end_page="0" type="concl">
    <SectionTitle>
5 Experimentation
</SectionTitle>
    <Paragraph position="0"> The objective of the experiment is to validate the hypothesis expressed in the filtering rules and the actual filtering mechanism of the CSA.</Paragraph>
    <Paragraph position="1"> Several ideas are taken into consideration in this respect, but we are aware that users (students, professor and other scholars) are the final judges. Their assessment of the system will depend on whether the generated document meet (or fail to do so) their information requirements, providing them with just the right type and amount of information.</Paragraph>
    <Paragraph position="2"> Conclusions In the tests conducted so far, the CourseViewGenerator is functioning correctly. One of the features that is worth considering is the scalability of the filtering mechanism. We anticipate two types of expansions to the system: (1) Increasing the size of the corpus, including more subjects and master documents, and (2) augmenting the user model by adding user aspects or by adding more parameters to the existing user aspects.</Paragraph>
    <Paragraph position="3"> The first type of expansion will not require any alteration of the CSA as long as the added document tokens conform to the existing DTD and our RST model. In order to increase the size of the corpus, it will be necessary to annotate XML discourse-tree metadata manually. This is a complex and time-consuming task (as has been noted by Carlson and Marcu, 2001). Future research activities should focus on helping automate the annotation process, for example using cue phrases a la Knott (Knott 1995; Alonso and Castellon, 2001).</Paragraph>
    <Paragraph position="4"> The second type of expansion requires only the elaboration of additional XSL filters.</Paragraph>
    <Paragraph position="5"> Adding new values to existing user aspects requires only the modification of the corresponding XSL filter. Any of these last two operations can be incorporated easily.</Paragraph>
    <Paragraph position="6"> Therefore, adding a new user aspect or a new discrete value does not increase in any substantial way the complexity of the system.</Paragraph>
  </Section>
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