PAI at SemEval-2026 Task 3: An LLM and Data Redistribution Adaptation-Based Predictive Strategy for Valence-Arousal Scores

Zhihao Ruan, Kaifeng Yang, Cheng Chen, Wenwen Dai, Wenjia Mao


Abstract
To address the valence and arousal score prediction task in Dimensional Aspect-Based Sentiment Analysis (DimABSA), we propose a two-stage strategy. In the first stage, we conduct post-training on a Large Language Model (LLM) via a Supervised Fine-Tuning (SFT) scheme, followed by generating initial predictions for valence and arousal scores. In the second stage, we perform distribution adaptation on the initial results by leveraging the training set distribution through various techniques, including Gaussian distribution modeling, quantile mapping, and the Sinkhorn algorithm.
Anthology ID:
2026.semeval-1.193
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:
1489–1494
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.193/
DOI:
Bibkey:
Cite (ACL):
Zhihao Ruan, Kaifeng Yang, Cheng Chen, Wenwen Dai, and Wenjia Mao. 2026. PAI at SemEval-2026 Task 3: An LLM and Data Redistribution Adaptation-Based Predictive Strategy for Valence-Arousal Scores. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 1489–1494, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):
PAI at SemEval-2026 Task 3: An LLM and Data Redistribution Adaptation-Based Predictive Strategy for Valence-Arousal Scores (Ruan et al., SemEval 2026)
Copy Citation:
PDF:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.193.pdf