Word Embedding for Semantically Relative Words: an Experimental Study
https://doi.org/10.18255/1818-1015-2018-6-726-733
Abstract
The ability to identify semantic relations between words has made a word2vec model widely used in NLP tasks. The idea of word2vec is based on a simple rule that a higher similarity can be reached if two words have a similar context. Each word can be represented as a vector, so the closest coordinates of vectors can be interpreted as similar words. It allows to establish semantic relations (synonymy, relations of hypernymy and hyponymy and other semantic relations) by applying an automatic extraction. The extraction of semantic relations by hand is considered as a time-consuming and biased task, requiring a large amount of time and some help of experts. Unfortunately, the word2vec model provides an associative list of words which does not consist of relative words only. In this paper, we show some additional criteria that may be applicable to solve this problem. Observations and experiments with well-known characteristics, such as word frequency, a position in an associative list, might be useful for improving results for the task of extraction of semantic relations for the Russian language by using word embedding. In the experiments, the word2vec model trained on the Flibusta and pairs from Wiktionary are used as examples with semantic relationships. Semantically related words are applicable to thesauri, ontologies and intelligent systems for natural language processing.
Supporting agencies: The reported study was funded by RFBR according to the research projects No16-07-01180 и No16-06-00497
About the Authors
Maria S. Karyaeva
P.G. Demidov Yaroslavl State University
Russian Federation
Russian Federation
graduate student
14 Sovetskaya str., Yaroslavl 150003
Pavel I. Braslavski
Ural Federal University
Russian Federation
Russian Federation
PhD, Docent
19 Mira str., Ekaterinburg 620002
Valery A. Sokolov
P.G. Demidov Yaroslavl State University
Russian Federation
Russian Federation
Doctor, Professor
14 Sovetskaya str., Yaroslavl 150003
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Review
For citations:
Karyaeva M.S., Braslavski P.I., Sokolov V.A. Word Embedding for Semantically Relative Words: an Experimental Study. Modeling and Analysis of Information Systems. 2018;25(6):726-733. (In Russ.) https://doi.org/10.18255/1818-1015-2018-6-726-733
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