MPRF: Interpretable Stance Detection through Multi-Path Reasoning Framework

ZhaoDan Zhang, Jin Zhang, Hui Xu, Jiafeng Guo, Xueqi Cheng


Abstract
Stance detection, a critical task in Natural Language Processing (NLP), aims to identify the attitude expressed in text toward specific targets. Despite advancements in Large Language Models (LLMs), challenges such as limited interpretability and handling nuanced content persist. To address these issues, we propose the Multi-Path Reasoning Framework (MPRF), a novel framework that generates, evaluates, and integrates multiple reasoning paths to improve accuracy, robustness, and transparency in stance detection. Unlike prior work that relies on single-path reasoning or static explanations, MPRF introduces a structured end-to-end pipeline: it first generates diverse reasoning paths through predefined perspectives, then dynamically evaluates and optimizes each path using LLM-based scoring, and finally fuses the results via weighted aggregation to produce interpretable and reliable predictions. Extensive experiments on the SEM16, VAST, and PStance datasets demonstrate that MPRF outperforms existing models. Ablation studies further validate the critical role of MPRF’s components, highlighting its effectiveness in enhancing interpretability and handling complex stance detection tasks.
Anthology ID:
2025.emnlp-main.24
Volume:
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Christos Christodoulopoulos, Tanmoy Chakraborty, Carolyn Rose, Violet Peng
Venue:
EMNLP
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Publisher:
Association for Computational Linguistics
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Pages:
454–470
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URL:
https://preview.aclanthology.org/ingest-emnlp/2025.emnlp-main.24/
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Cite (ACL):
ZhaoDan Zhang, Jin Zhang, Hui Xu, Jiafeng Guo, and Xueqi Cheng. 2025. MPRF: Interpretable Stance Detection through Multi-Path Reasoning Framework. In Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing, pages 454–470, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
MPRF: Interpretable Stance Detection through Multi-Path Reasoning Framework (Zhang et al., EMNLP 2025)
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