Transfer Capsule Network for Aspect Level Sentiment Classification

Zhuang Chen, Tieyun Qian


Abstract
Aspect-level sentiment classification aims to determine the sentiment polarity of a sentence towards an aspect. Due to the high cost in annotation, the lack of aspect-level labeled data becomes a major obstacle in this area. On the other hand, document-level labeled data like reviews are easily accessible from online websites. These reviews encode sentiment knowledge in abundant contexts. In this paper, we propose a Transfer Capsule Network (TransCap) model for transferring document-level knowledge to aspect-level sentiment classification. To this end, we first develop an aspect routing approach to encapsulate the sentence-level semantic representations into semantic capsules from both the aspect-level and document-level data. We then extend the dynamic routing approach to adaptively couple the semantic capsules with the class capsules under the transfer learning framework. Experiments on SemEval datasets demonstrate the effectiveness of TransCap.
Anthology ID:
P19-1052
Volume:
Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics
Month:
July
Year:
2019
Address:
Florence, Italy
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
547–556
Language:
URL:
https://aclanthology.org/P19-1052
DOI:
10.18653/v1/P19-1052
Bibkey:
Cite (ACL):
Zhuang Chen and Tieyun Qian. 2019. Transfer Capsule Network for Aspect Level Sentiment Classification. In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics, pages 547–556, Florence, Italy. Association for Computational Linguistics.
Cite (Informal):
Transfer Capsule Network for Aspect Level Sentiment Classification (Chen & Qian, ACL 2019)
Copy Citation:
PDF:
https://preview.aclanthology.org/auto-file-uploads/P19-1052.pdf
Code
 NLPWM-WHU/TransCap