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Taking ScopeThe Natural Semantics of Quantifiers$
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Mark Steedman

Print publication date: 2011

Print ISBN-13: 9780262017077

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262017077.001.0001

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Efficient Processing with CCG

Efficient Processing with CCG

Chapter:
(p.220) (p.221) Chapter 13 Efficient Processing with CCG
Source:
Taking Scope
Author(s):

Mark Steedman

Publisher:
The MIT Press
DOI:10.7551/mitpress/9780262017077.003.0013

Combinatory Categorial Grammar (CCG) allows semantically equivalent alternate surface derivations typified by the sentence “Harry admires Louise,” as well as English noun phrases, to have all of the type-raised categories allowed by a full-blown morphological case system. Many critics have argued that this so-called spurious ambiguity makes CCG quite impracticable to apply to useful tasks such as parsing and question answering in open domains, regardless of its linguistic attractions. This chapter examines how CCG can be used for efficient natural language processing. It first considers algorithms that have formed the basis of a number of practical CCG parsers before turning to logical forms and how they are built with CCG. The chapter also discusses processing scope and pronominal reference in CCG, generation of strings from logical forms using CCG, the use of scope for rapid inference in support of question answering or textual entailment, and human sentence processing.

Keywords:   parsing, Combinatory Categorial Grammar, question answering, natural language processing, logical forms, processing scope, pronominal reference, strings, entailment, human sentence processing

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