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Adversarial Category Alignment Network for Cross-domain Sentiment Classification

Xiaoye Qu, Zhikang Zou, Yu Cheng, Yang Yang, Pan Zhou


Abstract
Cross-domain sentiment classification aims to predict sentiment polarity on a target domain utilizing a classifier learned from a source domain. Most existing adversarial learning methods focus on aligning the global marginal distribution by fooling a domain discriminator, without taking category-specific decision boundaries into consideration, which can lead to the mismatch of category-level features. In this work, we propose an adversarial category alignment network (ACAN), which attempts to enhance category consistency between the source domain and the target domain. Specifically, we increase the discrepancy of two polarity classifiers to provide diverse views, locating ambiguous features near the decision boundaries. Then the generator learns to create better features away from the category boundaries by minimizing this discrepancy. Experimental results on benchmark datasets show that the proposed method can achieve state-of-the-art performance and produce more discriminative features.
Anthology ID:
N19-1258
Volume:
Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers)
Month:
June
Year:
2019
Address:
Minneapolis, Minnesota
Editors:
Jill Burstein, Christy Doran, Thamar Solorio
Venue:
NAACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2496–2508
Language:
URL:
https://aclanthology.org/N19-1258
DOI:
10.18653/v1/N19-1258
Bibkey:
Cite (ACL):
Xiaoye Qu, Zhikang Zou, Yu Cheng, Yang Yang, and Pan Zhou. 2019. Adversarial Category Alignment Network for Cross-domain Sentiment Classification. In Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers), pages 2496–2508, Minneapolis, Minnesota. Association for Computational Linguistics.
Cite (Informal):
Adversarial Category Alignment Network for Cross-domain Sentiment Classification (Qu et al., NAACL 2019)
Copy Citation:
PDF:
https://aclanthology.org/N19-1258.pdf
Presentation:
 N19-1258.Presentation.pptx
Video:
 https://aclanthology.org/N19-1258.mp4