Information Gain-Guided Causal Intervention for Autonomous Debiasing Large Language Models

• URL: http://arxiv.org/abs/2504.12898v1
• Date: Thu, 17 Apr 2025 12:39:25 GMT
• Title: Information Gain-Guided Causal Intervention for Autonomous Debiasing Large Language Models
• Authors: Zhouhao Sun, Xiao Ding, Li Du, Yunpeng Xu, Yixuan Ma, Yang Zhao, Bing Qin, Ting Liu,
• Abstract summary: Current large language models (LLMs) may still capture dataset biases and utilize them during inference.<n>We propose an information gain-guided causal intervention debiasing framework.<n>IGCIDB can effectively debias LLM to improve its generalizability across different tasks.
• Score: 40.853803921563596
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Despite significant progress, recent studies indicate that current large language models (LLMs) may still capture dataset biases and utilize them during inference, leading to the poor generalizability of LLMs. However, due to the diversity of dataset biases and the insufficient nature of bias suppression based on in-context learning, the effectiveness of previous prior knowledge-based debiasing methods and in-context learning based automatic debiasing methods is limited. To address these challenges, we explore the combination of causal mechanisms with information theory and propose an information gain-guided causal intervention debiasing (IGCIDB) framework. This framework first utilizes an information gain-guided causal intervention method to automatically and autonomously balance the distribution of instruction-tuning dataset. Subsequently, it employs a standard supervised fine-tuning process to train LLMs on the debiased dataset. Experimental results show that IGCIDB can effectively debias LLM to improve its generalizability across different tasks.

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