COBIAS: Contextual Reliability in Bias Assessment

• URL: http://arxiv.org/abs/2402.14889v2
• Date: Mon, 17 Jun 2024 09:01:25 GMT
• Title: COBIAS: Contextual Reliability in Bias Assessment
• Authors: Priyanshul Govil, Hemang Jain, Vamshi Krishna Bonagiri, Aman Chadha, Ponnurangam Kumaraguru, Manas Gaur, Sanorita Dey,
• Abstract summary: Large Language Models (LLMs) are trained on extensive web corpora, which enable them to understand and generate human-like text. These biases arise from web data's diverse and often uncurated nature, containing various stereotypes and prejudices. We propose understanding the context of inputs by considering the diverse situations in which they may arise.
• Score: 14.594920595573038
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large Language Models (LLMs) are trained on extensive web corpora, which enable them to understand and generate human-like text. However, this training process also results in inherent biases within the models. These biases arise from web data's diverse and often uncurated nature, containing various stereotypes and prejudices. Previous works on debiasing models rely on benchmark datasets to measure their method's performance. However, these datasets suffer from several pitfalls due to the highly subjective understanding of bias, highlighting a critical need for contextual exploration. We propose understanding the context of inputs by considering the diverse situations in which they may arise. Our contribution is two-fold: (i) we augment 2,291 stereotyped statements from two existing bias-benchmark datasets with points for adding context; (ii) we develop the Context-Oriented Bias Indicator and Assessment Score (COBIAS) to assess a statement's contextual reliability in measuring bias. Our metric aligns with human judgment on contextual reliability of statements (Spearman's $\rho = 0.65, p = 3.4 * 10^{-60}$) and can be used to create reliable datasets, which would assist bias mitigation works.

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