Aspect-based sentiment analysis via affective knowledge enhanced graph convolutional networks

Aspect-based sentiment analysis is a fine-grained sentiment analysis task, which needs to detection the sentiment polarity towards a given aspect. Recently, graph neural models over the dependency tree are widely applied for aspect-based sentiment analysis. Most existing works, however, they general...

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Vydané v:Knowledge-based systems Ročník 235; s. 107643
Hlavní autori: Liang, Bin, Su, Hang, Gui, Lin, Cambria, Erik, Xu, Ruifeng
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Amsterdam Elsevier B.V 10.01.2022
Elsevier Science Ltd
Predmet:
Affective knowledge
Artificial neural networks
Aspect sentiment analysis
Context
Data mining
Dependency
Exploitation
Graph convolutional networks
Graph neural networks
Graphs
Knowledge
Networks
Neural networks
Novels
Polarity
Sentences
Sentiment analysis
Words
Affective knowledge
Aspect sentiment analysis
Sentiment analysis
Graph convolutional networks
ISSN:0950-7051, 1872-7409
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Shrnutí:Aspect-based sentiment analysis is a fine-grained sentiment analysis task, which needs to detection the sentiment polarity towards a given aspect. Recently, graph neural models over the dependency tree are widely applied for aspect-based sentiment analysis. Most existing works, however, they generally focus on learning the dependency information from contextual words to aspect words based on the dependency tree of the sentence, which lacks the exploitation of contextual affective knowledge with regard to the specific aspect. In this paper, we propose a graph convolutional network based on SenticNet to leverage the affective dependencies of the sentence according to the specific aspect, called Sentic GCN. To be specific, we explore a novel solution to construct the graph neural networks via integrating the affective knowledge from SenticNet to enhance the dependency graphs of sentences. Based on it, both the dependencies of contextual words and aspect words and the affective information between opinion words and the aspect are considered by the novel affective enhanced graph model. Experimental results on multiple public benchmark datasets illustrate that our proposed model can beat state-of-the-art methods.
Bibliografia:ObjectType-Article-1
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content type line 14
ISSN:0950-7051
1872-7409
DOI:10.1016/j.knosys.2021.107643