Temat: syntax-semantics - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A syntax-semantics interface for Tree-Adjoining Grammars through Abstract Categorial Grammars
Autorzy:: Pogodalla, S.
Powiązania:: https://bibliotekanauki.pl/articles/103827.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: TAGs
Tree-Adjoining Grammars
syntax-semantics interface
ACGs
Abstract Categorial Grammars
Opis:: We present a model of the syntax-semantics interface for Tree-Adjoining Grammars (TAGs). It is based on the encoding of TAGs within the framework of Abstract Categorial Grammars (ACGs). This encoding relies on a functional interpretation of the substitution and adjunction operations of TAGs. In ACGs, the abstract terms representing derivation trees are full-fledged objects of the grammar. These terms are mapped onto logical formulas representing the semantic interpretation of natural language expressions that TAGs can analyze. Because of the reversibility properties of ACGs, this provides a way to parse and generate with the same TAG-encoded grammar. We propose several analyses, including for long-distance dependencies, quantification, control and raising verbs, and subordinate clauses. We also show how this encoding easily extends to other phenomena such as idioms or scope ambiguities. All the lexical data for theses modellings are provided and can be run with the ACG toolkit, a software package dedicated to the development of ACGs that can use these grammars both for parsing and generation.
Źródło:: Journal of Language Modelling; 2017, 5, 3; 527-605
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Syntax-driven semantic frame composition in Lexicalized Tree Adjoining Grammars
Autorzy:: Kallmeyer, L.
Osswald, R.
Powiązania:: https://bibliotekanauki.pl/articles/103941.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: lexicalized tree adjoining grammars
syntax-semantics interface
decompositional frame semantics
elementary constructions
metagrammar
feature structures
dative alternation
directed motion expressions
Opis:: The grammar framework presented in this paper combines Lexicalized Tree Adjoining Grammar (LTAG) with a (de)compositional frame semantics. We introduce elementary constructions as pairs of elementary LTAG trees and decompositional frames. The linking between syntax and semantics can largely be captured by such construction since in LTAG, elementary trees represent full argument projections. Substitution and adjunction in the syntax then trigger the unification of the associated semantic frames, which are formally defined as base-labelled feature structures. Moreover, the system of elementary constructions is specified in a metagrammar by means of tree and frame descriptions. This metagrammatical factorization gives rise to a fine-grained decomposition of the semantic contributions of syntactic building blocks, and it allows us to separate lexical from constructional contributions and to carve out generalizations across constructions. In the second half of the paper, we apply the framework to the analysis of directed motion expressions and of the dative alternation in English, two well known examples of the interaction between lexical and constructional meaning.
Źródło:: Journal of Language Modelling; 2013, 1, 2; 267-330
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: High-level methodologies for grammar engineering. Introduction to the special issue
Autorzy:: Duchier, D.
Parmentier, Y.
Powiązania:: https://bibliotekanauki.pl/articles/103817.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: grammar engineering
formal language
syntax
semantics
Opis:: Grammar engineering is the task of designing and implementing linguistically motivated electronic descriptions of natural language (socalled grammars). These grammars are expressed within well-defined theoretical frameworks, and offer a fine-grained description of natural language. While grammars were first used to describe syntax, that is to say, the relations between constituents in a sentence, they often go beyond syntax and include semantic information. Grammar engineering provides precise descriptions which can be used for natural language understanding and generation, making these valuable resources for various natural language applications, including textual entailment, dialogue systems, or machine translation. The first attempts at designing large-scale resource grammars were costly because of the complexity of the task (Erbach 1990) and of the number of persons that were needed (see e.g. Doran et al. 1997). Advances in the field have led to the development of environments for semi-automatic grammar engineering, borrowing ideas from compilation (grammar engineering is compared with software development) and machine learning. This special issue reports on new trends in the field, where grammar engineering benefits from elaborate high-level methodologies and techniques, dealing with various issues (both theoretical and practical).
Źródło:: Journal of Language Modelling; 2015, 3, 1; 5-19
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Constructions with Lexical Integrity
Autorzy:: Asudeh, A.
Dalrymple, M.
Toivonen, I.
Powiązania:: https://bibliotekanauki.pl/articles/103943.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
Tematy:: syntax
lexicon
semantics
constructions
Lexical Integrity
templates
Swedish
Dutch
LFG
Glue Semantics
Opis:: Construction Grammar holds that unpredictable form-meaning combinations are not restricted in size. In particular, there may be phrases that have particular meanings that are not predictable from the words that they contain, but which are nonetheless not purely idiosyncratic. In addressing this observation, some construction grammarians have not only weakened the word/phrase distinction, but also denied the lexicon/grammar distinction. In this paper, we consider the word/phrase and lexicon/grammar distinction in light of Lexical-Functional Grammar and its Lexical Integrity Principle. We show that it is not necessary to remove the word/phrase distinction or the lexicon/grammar distinction to capture constructional effects, although we agree that there are important generalizations involving constructions of all sizes that must be captured at both syntactic and semantic levels. We use LFG’s templates, bundles of grammatical descriptions, to factor out grammatical information in such a way that it can be invoked either by words or by construction-specific phrase structure rules. Phrase structure rules that invoke specific templates are thus the equivalent of phrasal constructions in our approach, but Lexical Integrity and the separation of word and phrase are preserved. Constructional effects are captured by systematically allowing words and phrases to contribute comparable information to LFG’s level of functional structure; this is just a generalization of LFG’s usual assumption that “morphology competes with syntax” (Bresnan, 2001).
Źródło:: Journal of Language Modelling; 2013, 1, 1; 1-54
2299-856X
2299-8470
Pojawia się w:: Journal of Language Modelling
Dostawca treści:: Biblioteka Nauki

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