Link lub cytat. http://ena.lp.edu.ua:8080/handle/ntb/39416
Tytuł: Partial semantic parsing of sentences by means of grammatically augmented ontology and weighted affix context-free grammar
Authors: Davydov, M.
Lozynska, O.
Pasichnyk, V.
Akcesoria: Lviv Polytechnic National University
Cytat: Davydov M. Partial semantic parsing of sentences by means of grammatically augmented ontology and weighted affix context-free grammar / M. Davydov, O. Lozynska, V. Pasichnyk // Econtechmod : an international quarterly journal on economics in technology, new technologies and modelling processes. – Lublin ; Rzeszow, 2017. – Volum 6, number 2. – P. 27–32. – Bibliography: 24 titles.
Journal/kolekcja: Econtechmod
Tom: Volum 6, number 2
Data wydania: 2017
Wydawca: Commission of Motorization and Energetics in Agriculture
Kraj (kod): PL
Place edycja: Lublin ; Rzeszow
Słowa kluczowe: Grammatically augmented ontology
weighted affix context free grammar
semantic parsing
syntactic parsing
template productions
Strony: 27-32
Abstract: In spite of the fact that modern statistical and neural net based tools for parsing natural language texts supersede classical approaches there are still areas where generative grammars are used. These are areas where collection of universal parallel corpuses is still in the progress. National sign languages are among them. Ontologies and common sense databases play valuable role in parsing and translation of such languages. Grammatically augmented ontology (GAO) is an ontology extension that links phrases to their meaning. The link is established via special expressions that connect phrase meaning to grammatical and semantical attributes of words that constitute it. The article introduces a new approach to sentence parsing that is based on integration of ontology relations into productions of weighted affix context-free grammar (WACFG). For that reason a new parser for WACFG grammar was developed inspired by works of C.H.A. Koster. Basic properties of WACFG are discussed and the algorithm for selection and convertion of GAO expressions into the set of WACFG productions is provided. The proposed algorithm turned out to be feasible in the context of parsing and translating Ukrainian Spoken and Ukrainian Sign language. The developed approach for mixed semantical and syntactical sentence parsing was tested on the database of sentences from Ukrainian fairy tail by Ivan Franko “Fox Mykyta” where 92 % of sentences were correctly parsed.
URI: http://ena.lp.edu.ua:8080/handle/ntb/39416
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Typ zawartości: Article
Występuje w kolekcjach:Econtechmod. – 2017. – Vol. 6, No. 2

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