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Wyszukujesz frazę "syntax-semantics interface" wg kryterium: Temat


Wyświetlanie 1-2 z 2
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
Artykuł
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
Artykuł
    Wyświetlanie 1-2 z 2

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