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<Paper uid="P98-2170">
  <Title>A Procedure for Multi-Class Discrimination and some Linguistic Applications</Title>
  <Section position="7" start_page="1039" end_page="1039" type="concl">
    <SectionTitle>
7 Conclusion
</SectionTitle>
    <Paragraph position="0"> The basic contributions of this paper are: (1) to introduce a novel flexible multi-class learning program, MPD, that emphasizes the conciseness and intelligibility of the class descriptions; (2) to show some uses of MPD in diverse linguistic fields, at the same time indicating some prospective modes of using the program in the different application types; and (3) to describe substantial results that employed the program. null A basic limitation of MPD is of course its inability to handle inherently disjunctive concepts, and there are indeed various tasks of this sort. Also, despite its efficient implementation, the user may sometimes be forced to sacrifice conciseness (e.g., choose two primitive features instead of just one derived that can validly replace them) in order to evade combinatorial problems. Nevertheless in our experience with linguistic (and not only linguistic) tasks MPD has proved a successful tool for solving significant practical problems. As far as our ongoing research is concerned, we basically are focussing on finding novel application areas.</Paragraph>
    <Paragraph position="1"> Acknowledgments. This work was supported by a grant #IRI-9421656 from the (USA) National Science Foundation and by the NSF Division of International Programs.</Paragraph>
    <Paragraph position="2"> 13E.g., instead of the profile \[xranja-se: NPl=beast PP\] in Table 2, one may choose the valid shorter profile \[xranja-se: -~VTR\], even though that would increase the number of overall features used.</Paragraph>
  </Section>
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