Computing Scope in a CCG Parser

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Abstract

Ambiguities arising from alternations of scope in interpretations for multiply quantified sentences appear to require grammatical operations that compromise the strong assumptions of syntactic/semantic transparency and monotonicity underlying the Frege-Montague approach to the theory of grammar. Examples that have been proposed include covert movement at the level of logical form, abstraction or storage mechanisms, and proliferating type-changing operations. The paper examines some interactions of scope alternation with syntactic phenomena including coordination, binding, and relativization. Starting from the assumption of Fodor and Sag, and others, that many expressions that have been treated as generalized quantifiers are in fact referential expressions, and using Combinatory Categorial Grammar (CCG) as a grammatical framework, the paper presents an account of quantifier scope ambiguities according to which the available readings are projected directly from the lexicon by the combinatorics of
the syntactic derivation, without any independent manipulation of logical form and without recourse to otherwise unmotivated type-changing operations. As a direct result, scope ambiguity can be efficiently processed using packed representations from which the available readings can be simply enumerated.
Original languageEnglish
Title of host publicationProceedings of the 12th International Conference on Parsing Technologies, IWPT 2011, October 5-7, 2011, Dublin City University, Dubin, Ireland
PublisherAssociation for Computational Linguistics
Pages1
Number of pages1
Publication statusPublished - 2011

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