@inproceedings{yuan-etal-2020-graph,
title = "Graph Attention Network with Memory Fusion for Aspect-level Sentiment Analysis",
author = "Yuan, Li and
Wang, Jin and
Yu, Liang-Chih and
Zhang, Xuejie",
editor = "Wong, Kam-Fai and
Knight, Kevin and
Wu, Hua",
booktitle = "Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing",
month = dec,
year = "2020",
address = "Suzhou, China",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2020.aacl-main.4/",
doi = "10.18653/v1/2020.aacl-main.4",
pages = "27--36",
abstract = "Aspect-level sentiment analysis(ASC) predicts each specific aspect term`s sentiment polarity in a given text or review. Recent studies used attention-based methods that can effectively improve the performance of aspect-level sentiment analysis. These methods ignored the syntactic relationship between the aspect and its corresponding context words, leading the model to focus on syntactically unrelated words mistakenly. One proposed solution, the graph convolutional network (GCN), cannot completely avoid the problem. While it does incorporate useful information about syntax, it assigns equal weight to all the edges between connected words. It may still incorrectly associate unrelated words to the target aspect through the iterations of graph convolutional propagation. In this study, a graph attention network with memory fusion is proposed to extend GCN`s idea by assigning different weights to edges. Syntactic constraints can be imposed to block the graph convolutional propagation of unrelated words. A convolutional layer and a memory fusion were applied to learn and exploit multiword relations and draw different weights of words to improve performance further. Experimental results on five datasets show that the proposed method yields better performance than existing methods."
}
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<abstract>Aspect-level sentiment analysis(ASC) predicts each specific aspect term‘s sentiment polarity in a given text or review. Recent studies used attention-based methods that can effectively improve the performance of aspect-level sentiment analysis. These methods ignored the syntactic relationship between the aspect and its corresponding context words, leading the model to focus on syntactically unrelated words mistakenly. One proposed solution, the graph convolutional network (GCN), cannot completely avoid the problem. While it does incorporate useful information about syntax, it assigns equal weight to all the edges between connected words. It may still incorrectly associate unrelated words to the target aspect through the iterations of graph convolutional propagation. In this study, a graph attention network with memory fusion is proposed to extend GCN‘s idea by assigning different weights to edges. Syntactic constraints can be imposed to block the graph convolutional propagation of unrelated words. A convolutional layer and a memory fusion were applied to learn and exploit multiword relations and draw different weights of words to improve performance further. Experimental results on five datasets show that the proposed method yields better performance than existing methods.</abstract>
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%0 Conference Proceedings
%T Graph Attention Network with Memory Fusion for Aspect-level Sentiment Analysis
%A Yuan, Li
%A Wang, Jin
%A Yu, Liang-Chih
%A Zhang, Xuejie
%Y Wong, Kam-Fai
%Y Knight, Kevin
%Y Wu, Hua
%S Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing
%D 2020
%8 December
%I Association for Computational Linguistics
%C Suzhou, China
%F yuan-etal-2020-graph
%X Aspect-level sentiment analysis(ASC) predicts each specific aspect term‘s sentiment polarity in a given text or review. Recent studies used attention-based methods that can effectively improve the performance of aspect-level sentiment analysis. These methods ignored the syntactic relationship between the aspect and its corresponding context words, leading the model to focus on syntactically unrelated words mistakenly. One proposed solution, the graph convolutional network (GCN), cannot completely avoid the problem. While it does incorporate useful information about syntax, it assigns equal weight to all the edges between connected words. It may still incorrectly associate unrelated words to the target aspect through the iterations of graph convolutional propagation. In this study, a graph attention network with memory fusion is proposed to extend GCN‘s idea by assigning different weights to edges. Syntactic constraints can be imposed to block the graph convolutional propagation of unrelated words. A convolutional layer and a memory fusion were applied to learn and exploit multiword relations and draw different weights of words to improve performance further. Experimental results on five datasets show that the proposed method yields better performance than existing methods.
%R 10.18653/v1/2020.aacl-main.4
%U https://aclanthology.org/2020.aacl-main.4/
%U https://doi.org/10.18653/v1/2020.aacl-main.4
%P 27-36
Markdown (Informal)
[Graph Attention Network with Memory Fusion for Aspect-level Sentiment Analysis](https://aclanthology.org/2020.aacl-main.4/) (Yuan et al., AACL 2020)
ACL
- Li Yuan, Jin Wang, Liang-Chih Yu, and Xuejie Zhang. 2020. Graph Attention Network with Memory Fusion for Aspect-level Sentiment Analysis. In Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing, pages 27–36, Suzhou, China. Association for Computational Linguistics.