A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination

In the last decade, several lexical-semantic knowledge bases (LKBs) were developed for Portuguese, by different teams and following different approaches. Most of them are open and freely available for the community. Those LKBs are briefly analysed here, with a focus on size, structure, and overlappi...

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Main Author: Hugo Gonçalo Oliveira
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Information
Subjects:
Online Access:http://www.mdpi.com/2078-2489/9/2/34
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author Hugo Gonçalo Oliveira
author_facet Hugo Gonçalo Oliveira
author_sort Hugo Gonçalo Oliveira
collection DOAJ
description In the last decade, several lexical-semantic knowledge bases (LKBs) were developed for Portuguese, by different teams and following different approaches. Most of them are open and freely available for the community. Those LKBs are briefly analysed here, with a focus on size, structure, and overlapping contents. However, we go further and exploit all of the analysed LKBs in the creation of new LKBs, based on the redundant contents. Both original and redundancy-based LKBs are then compared, indirectly, based on the performance of automatic procedures that exploit them for solving four different semantic analysis tasks. In addition to conclusions on the performance of the original LKBs, results show that, instead of selecting a single LKB to use, it is generally worth combining the contents of all the open Portuguese LKBs, towards better results.
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spelling doaj.art-0ddbcad75c8b41a58991e038d26912da2022-12-22T02:32:31ZengMDPI AGInformation2078-24892018-02-01923410.3390/info9020034info9020034A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and CombinationHugo Gonçalo Oliveira0Department of Informatics Engineering, Centre for Informatics and Systems of the University of Coimbra (CISUC), University of Coimbra, 3030-290 Coimbra, PortugalIn the last decade, several lexical-semantic knowledge bases (LKBs) were developed for Portuguese, by different teams and following different approaches. Most of them are open and freely available for the community. Those LKBs are briefly analysed here, with a focus on size, structure, and overlapping contents. However, we go further and exploit all of the analysed LKBs in the creation of new LKBs, based on the redundant contents. Both original and redundancy-based LKBs are then compared, indirectly, based on the performance of automatic procedures that exploit them for solving four different semantic analysis tasks. In addition to conclusions on the performance of the original LKBs, results show that, instead of selecting a single LKB to use, it is generally worth combining the contents of all the open Portuguese LKBs, towards better results.http://www.mdpi.com/2078-2489/9/2/34lexical knowledge basesPortugueseWordNetredundancysemantic similarity
spellingShingle Hugo Gonçalo Oliveira
A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination
Information
lexical knowledge bases
Portuguese
WordNet
redundancy
semantic similarity
title A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination
title_full A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination
title_fullStr A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination
title_full_unstemmed A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination
title_short A Survey on Portuguese Lexical Knowledge Bases: Contents, Comparison and Combination
title_sort survey on portuguese lexical knowledge bases contents comparison and combination
topic lexical knowledge bases
Portuguese
WordNet
redundancy
semantic similarity
url http://www.mdpi.com/2078-2489/9/2/34
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