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15 - Drilling Lexico-Semantic Knowledge in Portuguese from BERT ...
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On the Utility of Word Embeddings for Enriching OpenWordNet-PT ...
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Assessing Lexical-Semantic Regularities in Portuguese Word Embeddings
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Abstract:
Models of word embeddings are often assessed when solving syntactic and semantic analogies. Among the latter, we are interested in relations that one would find in lexical-semantic knowledge bases like WordNet, also covered by some analogy test sets for English. Briefly, this paper aims to study how well pretrained Portuguese word embeddings capture such relations. For this purpose, we created a new test, dubbed TALES, with an exclusive focus on Portuguese lexical-semantic relations, acquired from lexical resources. With TALES, we analyse the performance of methods previously used for solving analogies, on different models of Portuguese word embeddings. Accuracies were clearly below the state of the art in analogies of other kinds, which shows that TALES is a challenging test, mainly due to the nature of lexical-semantic relations, i.e., there are many instances sharing the same argument, thus allowing for several correct answers, sometimes too many to be all included in the dataset. We further inspect the results of the best performing combination of method and model to find that some acceptable answers had been considered incorrect. This was mainly due to the lack of coverage by the source lexical resources and suggests that word embeddings may be a useful source of information for enriching those resources, something we also discuss.
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Keyword:
IJIMAI; natural language processing; semantic lexicon; semantics; word embeddings
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URL: https://reunir.unir.net/handle/123456789/12888
https://doi.org/10.9781/ijimai.2021.02.006
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TALES: Test Set of Portuguese Lexical-Semantic Relations for Assessing Word Embeddings ...
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Exploring Different Methods for Solving Analogies with Portuguese Word Embeddings ...
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ASAPP 2.0: Advancing the state-of-the-art of semantic textual similarity for Portuguese ...
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Comparing and Combining Portuguese Lexical-Semantic Knowledge Bases ...
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Gonçalo Oliveira, Hugo. - : Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH, Wadern/Saarbruecken, Germany, 2017
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Assigning Polarity Automatically to the Synsets of a Wordnet-like Resource ...
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Uma Abordagem ao Págico baseada no Processamento e Análise de Sintagmas dos Tópicos
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