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<Paper uid="C94-2206">
  <Title>Incremental Construction of a Lexical Transducer for Korean</Title>
  <Section position="5" start_page="1264" end_page="1264" type="concl">
    <SectionTitle>
4 Conclusion
</SectionTitle>
    <Paragraph position="0"> The success of our work on Korean further underscores the point made by KKZ(Karttnncn, 1992a) thai; the most salient property of two-level morphology is not the number of levels but the fact two-level rules describe regular relations (just like classical phonological rewrite rnles) (Kaplan, 1988; Ritehie, 1992). Consequently, it is possible to combine sets of parallel two-level rules by intersection and merge them with the lexicon and other rule systems in a cascade, of compositions. The complexities of Korean morphology make it desirable both tbr linguistic and computational reasons to allow for many more intermediate levels than assumed in previous works on English and t,~reneh, l{.egardless of the nnmber of intervening levels, the outcome is a single lexieal transduce.r thaw directly maps lexical forms to their intlected surface realizations, and vice versa.</Paragraph>
    <Paragraph position="1"> In the construction of the lexieal automaton for Ko-.</Paragraph>
    <Paragraph position="2"> rean, we have put two-level rules to a novel use as well-formedness constraints on lexical tbrms. The sublexicons from which the LA is constructed contain (tiacritic marks on the outer edge that identify the type of morphoh)gical constituents that the lexicon contains.</Paragraph>
    <Paragraph position="3"> The role of rules in the \[,A constructions is to enforce morphotaetics and, at the same time, to eliminate the diacritics that encode them.</Paragraph>
    <Paragraph position="4"> Theoretically, we can get the same LT to compose the morphotactic and phonological &gt;ties all together into one. rule and compose it with the initial LA or to compose the initial LA with each rule of the mor photaetic and phonological rules one by one in order.</Paragraph>
    <Paragraph position="5"> Practically, the composition of all the morphotactic and phonologieal rules into one rule causes the combinatorial explosion of states. This shows that ordered rules can be used to avoid the combinatorial explosion of states in one two level rule system too.</Paragraph>
  </Section>
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