نتایج جستجو برای: dependency grammar

تعداد نتایج: 76792  

1992
David Milward

The paper describes two equiwtlent grammatical formalisnLs. The first is a lexicalised version of depen dency grammar, and this can be nsed to provide tree-structured analyses of sentences (though somewhat tlatter than those usually provided by phra.se structure grammars). The second is a new forrnal ism, 'Dynamic Dependency Gramniar ' , which uses axioms and deduction rules to provide analyses...

2013
Sylvain Kahane

This paper shows how to introduce predicative adjunction in a dependency grammar inspired from TAG, MTT and RG. The addition of predicative adjunction allows us to obtain a modular surface syntactic grammar, the derivation structures of which can be interpreted as semantic representations.

Journal: :Information and Control 1981
Joost Engelfriet Gilberto Filé

An attribute grammar is pure (left-to-right) multi-pass if a bounded number of left-to-right passes over the derivation tree suffice to compute all its attributes. There is no requirement, as for the usual multi-pass attribute grammars, that all occurrences of the same attribute are computed in the same pass, R is shown that the problem of determining whether an arbitrary attribute grammar is p...

2006
Yuan Ding Martha Palmer

As an approach to syntax based statistical machine translation (SMT), Probabilistic Synchronous Dependency Insertion Grammars (PSDIG), introduced in (Ding and Palmer, 2005), are a version of synchronous grammars defined on dependency trees. In this paper we discuss better learning and decoding algorithms for a PSDIG MT system. We introduce two new grammar learners: (1) an exhaustive learner com...

1996
Ronnie Cann

One of the important tasks of a syntactic theory is to provide an account of the different dependency relations that hold between elements in a phrase.1 In Dependency Grammar (following various traditional grammatical traditions (cf. Lyons 1968), there are two basic types: complement and adjunct (or modifier). The first defines an obligatory relation between a functor (or head) and its argument...

2011
Pablo Gamallo Otero

In this paper, we describe a grammatical formalism, called DepPattern, to write dependency grammars using patterns of Part of Speech (PoS) tags augmented with lexical and morphological information. The formalism inherits ideas from Sinclair’s work and Pattern Grammar. To properly analyze semi-fixed idiomatic expressions, DepPattern distinguishes between open-choice and idiomatic rules. A gramma...

2014
Bharat Ram Ambati Tejaswini Deoskar Mark Steedman

Subcategorization information is a useful feature in dependency parsing. In this paper, we explore a method of incorporating this information via Combinatory Categorial Grammar (CCG) categories from a supertagger. We experiment with two popular dependency parsers (Malt and MST) for two languages: English and Hindi. For both languages, CCG categories improve the overall accuracy of both parsers ...

2007
Mary P. Harper Christopher M. White Stephen A. Hockema Randall A. Helzerman

Constraint Dependency Grammar (CDG) 11, 13] is a constraint-based grammatical formalism that has proven eeective for processing English 5] and improving the accuracy of spoken language understanding systems 4]. However, prospective users of CDG face a steep learning curve when trying to master this powerful formalism. Therefore, a recent trend in CDG research has been to try to ease the burden ...

2009

Broad-coverage annotated treebanks necessary to train parsers do not exist for many resource-poor languages. The wide availability of parallel text and accurate parsers in English has opened up the possibility of grammar induction through partial transfer across bitext. We consider generative and discriminative models for dependency grammar induction that use word-level alignments and a source ...

2002

We present the first step towards a constraint-based syntax-semantics interface for Topological Dependency Grammar (TDG) (Duchier and Debusmann, 2001). We extend TDG with a new level of representation called semantic dependency dag to capture the deep semantic dependencies and clearly separate this level from the syntactic dependency tree. We stipulate an emancipation mechanism between these le...

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