Results 21 to 30 of about 22,181 (225)

Classifying Conserved RNA Secondary Structures With Pseudoknots by Vector-Edit Distance

open access: yesIEEE Access, 2021
Secondary structures have been proved to relate with the great functional diversity of RNA. There have been many studies to predict and compare the RNA secondary structures. However, fast and accurate comparison of RNA secondary structures with arbitrary
Liyu Huang   +3 more
doaj   +1 more source

Synchronous tree-adjoining grammars [PDF]

open access: yesProceedings of the 13th conference on Computational linguistics -, 1990
The unique properties of tree-adjoining grammars (TAG) present a challenge for the application of TAGs beyond the limited confines of syntax, for instance, to the task of semantic interpretation or automatic translation of natural language. We present a variant of TAGs, called synchronous TAGs, which characterize correspondences between languages.
Stuart M. Shieber, Yves Schabes
openaire   +1 more source

Lexical Functional Grammar as a Construction Grammar

open access: yesJournal of Language Modelling, 2023
Lexical Functional Grammar (LFG) is a lexicalist, constraint-based grammatical theory that shares a lot of the basic assumptions of Construction Grammar (CxG), such as a commitment to surface-oriented descriptions (no transformations), and the ...
Jamie Y. Findlay
doaj   +1 more source

On the Complexity of CCG Parsing [PDF]

open access: yesComputational Linguistics, 2018
We study the parsing complexity of Combinatory Categorial Grammar (CCG) in the formalism of Vijay-Shanker and Weir (1994). As our main result, we prove that any parsing algorithm for this formalism will take in the worst case exponential time when the ...
Marco Kuhlmann   +2 more
doaj   +1 more source

SOBRE LA SINTAXIS DE LAS ORACIONES DE RELATIVO

open access: yesBorealis: An International Journal of Hispanic Linguistics, 2022
En este trabajo examinaremos análisis existentes de las oraciones de relativo (principalmente restrictivas), y propondremos un análisis para las relativas españolas desde la perspectiva de una gramática de adjunción (TAG) lexicalizada.
Diego Gabriel Krivochen
doaj   +1 more source

Tree Parsing with Synchronous Tree-Adjoining Grammars [PDF]

open access: green, 2011
Restricting the input or the output of a grammar-induced translation to a given set of trees plays an important role in statistical machine translation. The problem for practical systems is to find a compact (and in particular, finite) representation of said restriction.
Matthias Büchse   +2 more
openalex   +2 more sources

Bimorphisms and synchronous grammars

open access: yesJournal of Language Modelling, 2014
We tend to think of the study of language as proceeding by characterizing the strings and structures of a language, and we think of natural language processing as using those structures to build systems of utility in manipulating the language.
Stuart M. Shieber
doaj   +1 more source

Multiple Context-Free Tree Grammars: Lexicalization and Characterization [PDF]

open access: yes, 2017
Multiple (simple) context-free tree grammars are investigated, where "simple" means "linear and nondeleting". Every multiple context-free tree grammar that is finitely ambiguous can be lexicalized; i.e., it can be transformed into an equivalent one ...
Engelfriet, Joost   +2 more
core   +3 more sources

Modeling Brain Representations of Words' Concreteness in Context Using GPT‐2 and Human Ratings

open access: yesCognitive Science, Volume 47, Issue 12, December 2023., 2023
Abstract The meaning of most words in language depends on their context. Understanding how the human brain extracts contextualized meaning, and identifying where in the brain this takes place, remain important scientific challenges. But technological and computational advances in neuroscience and artificial intelligence now provide unprecedented ...
Andrea Bruera   +5 more
wiley   +1 more source

Stochastic tree-adjoining grammars [PDF]

open access: yesProceedings of the workshop on Speech and Natural Language - HLT '91, 1992
The notion of stochastic lexicalized tree-adjoining grammar (SLTAG) is defined and basic algorithms for SLTAG are designed. The parameters of a SLTAG correspond to the probability of combining two structures each one associated with a word. The characteristics of SLTAG are unique and novel since it is lexically sensitive (as N-gram models or Hidden ...
openaire   +1 more source

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