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Disambiguation of Super Parts of Speech (or Supertags): Almost Parsing ...
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Abstract:
In a lexicalized grammar formalism such as Lexicalized Tree-Adjoining Grammar (LTAG), each lexical item is associated with at least one elementary structure (supertag) that localizes syntactic and semantic dependencies. Thus a parser for a lexicalized grammar must search a large set of supertags to choose the right ones to combine for the parse of the sentence. We present techniques for disambiguating supertags using local information such as lexical preference and local lexical dependencies. The similarity between LTAG and Dependency grammars is exploited in the dependency model of supertag disambiguation. The performance results for various models of supertag disambiguation such as unigram, trigram and dependency-based models are presented. ... : ps file. 8 pages ...
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Keyword:
Computation and Language cs.CL; FOS Computer and information sciences
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URL: https://arxiv.org/abs/cmp-lg/9410029 https://dx.doi.org/10.48550/arxiv.cmp-lg/9410029
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84 |
A Formal Look at Dependency Grammars and Phrase-Structure Grammars, with Special Consideration of Word-Order Phenomena ...
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88 |
The convergence of mildly context-sensitive grammar formalisms
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89 |
Tree-Adjoining Grammars and Lexicalized Grammars
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In: Technical Reports (CIS) (1991)
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90 |
Unification-Based Tree Adjoining Grammars
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In: Technical Reports (CIS) (1991)
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91 |
Using Lexicalized Tags for Machine Translation
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In: Technical Reports (CIS) (1991)
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96 |
Two Recent Developments in Tree Adjoining Grammars: Semantics and Efficient Processing
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In: DTIC (1990)
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97 |
Parsing With Lexicalized Tree Adjoining Grammar
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In: Technical Reports (CIS) (1990)
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98 |
The Convergence of Mildly Context-Sensitive Grammar Formalisms
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In: Technical Reports (CIS) (1990)
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100 |
Processing Crossed and Nested Dependencies: An Automaton Perspective on the Psycholinguistic Results
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In: Technical Reports (CIS) (1989)
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