SCUZANE at SemEval-2026 Task 3: Dimensional Aspect-based Sentiment Analysis with Supervised Contrastive Regression and R-Drop Regularization

Ziang Zhou, Xiangmei He, Chenhongyi Bai


Abstract
Current Aspect-Based Sentiment Analysis (ABSA) often relies on coarse-grained categorical labels, such as Positive and Negative, and this often leads to fail capturing the subtle intensity of emotional expression in real-world text. To address this issue, the SemEval-2026 Shared Task 3: Dimensional ABSA (DimABSA) extends the traditional ABSA by replacing categorical sentiment polarity with continuous valence-arousal (VA) scores. In this paper, we describe our system for Subtask 1 (Dimensional Aspect Sentiment Regression) of Track A (DimABSA). Our system utilizes a DeBERTa-v3-large backbone, enhanced by a prompt-based learning strategy that concatenates aspect information with the context. And we employ multi-sample dropout and a weighted aggregation of the hidden states from the last four layers to capture rich semantic representations. Our experimental results across all provided domains on different languages demonstrate the effectiveness of integrating consistency regularization with dimensional contrastive learning for fine-grained sentiment regression.
Anthology ID:
2026.semeval-1.251
Volume:
Proceedings of the 20th International Workshop on Semantic Evaluation (2026)
Month:
July
Year:
2026
Address:
San Diego, California, USA
Editors:
Ekaterina Kochmar, Debanjan Ghosh, Kai North, Mamoru Komachi
Venues:
SemEval | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1992–1996
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.251/
DOI:
Bibkey:
Cite (ACL):
Ziang Zhou, Xiangmei He, and Chenhongyi Bai. 2026. SCUZANE at SemEval-2026 Task 3: Dimensional Aspect-based Sentiment Analysis with Supervised Contrastive Regression and R-Drop Regularization. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 1992–1996, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):
SCUZANE at SemEval-2026 Task 3: Dimensional Aspect-based Sentiment Analysis with Supervised Contrastive Regression and R-Drop Regularization (Zhou et al., SemEval 2026)
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https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.251.pdf