Reasoner Outperforms: Generative Stance Detection with Rationalization for Social Media

Fuente: arXiv
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Auteurs principaux: Yuan, Jiaqing, Xi, Ruijie, Singh, Munindar P.
Format: Preprint
Publié: 2024
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author Yuan, Jiaqing
Xi, Ruijie
Singh, Munindar P.
author_facet Yuan, Jiaqing
Xi, Ruijie
Singh, Munindar P.
contents Stance detection is crucial for fostering a human-centric Web by analyzing user-generated content to identify biases and harmful narratives that undermine trust. With the development of Large Language Models (LLMs), existing approaches treat stance detection as a classification problem, providing robust methodologies for modeling complex group interactions and advancing capabilities in natural language tasks. However, these methods often lack interpretability, limiting their ability to offer transparent and understandable justifications for predictions. This study adopts a generative approach, where stance predictions include explicit, interpretable rationales, and integrates them into smaller language models through single-task and multitask learning. We find that incorporating reasoning into stance detection enables the smaller model (FlanT5) to outperform GPT-3.5's zero-shot performance, achieving an improvement of up to 9.57%. Moreover, our results show that reasoning capabilities enhance multitask learning performance but may reduce effectiveness in single-task settings. Crucially, we demonstrate that faithful rationales improve rationale distillation into SLMs, advancing efforts to build interpretable, trustworthy systems for addressing discrimination, fostering trust, and promoting equitable engagement on social media.
format Preprint
id arxiv_https___arxiv_org_abs_2412_10266
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Reasoner Outperforms: Generative Stance Detection with Rationalization for Social Media
Yuan, Jiaqing
Xi, Ruijie
Singh, Munindar P.
Computation and Language
Stance detection is crucial for fostering a human-centric Web by analyzing user-generated content to identify biases and harmful narratives that undermine trust. With the development of Large Language Models (LLMs), existing approaches treat stance detection as a classification problem, providing robust methodologies for modeling complex group interactions and advancing capabilities in natural language tasks. However, these methods often lack interpretability, limiting their ability to offer transparent and understandable justifications for predictions. This study adopts a generative approach, where stance predictions include explicit, interpretable rationales, and integrates them into smaller language models through single-task and multitask learning. We find that incorporating reasoning into stance detection enables the smaller model (FlanT5) to outperform GPT-3.5's zero-shot performance, achieving an improvement of up to 9.57%. Moreover, our results show that reasoning capabilities enhance multitask learning performance but may reduce effectiveness in single-task settings. Crucially, we demonstrate that faithful rationales improve rationale distillation into SLMs, advancing efforts to build interpretable, trustworthy systems for addressing discrimination, fostering trust, and promoting equitable engagement on social media.
title Reasoner Outperforms: Generative Stance Detection with Rationalization for Social Media
topic Computation and Language
url https://arxiv.org/abs/2412.10266