Core Concepts
Unanticipated biases in Large Language Models (LLMs) can have serious negative impacts, yet current research primarily focuses on known biases. This paper explores novel methods using Uncertainty Quantification and Explainable AI to identify hidden biases in LLMs.
Abstract
The paper discusses the critical issue of unanticipated biases in Large Language Models (LLMs) and proposes innovative approaches to detect these hidden biases.
Key highlights:
Current research on bias in LLMs primarily focuses on well-known biases related to gender, race, and ethnicity, overlooking more subtle, unanticipated biases.
Unanticipated biases can have serious negative impacts in various applications, such as medical diagnostics, where biases based on patient attributes should not influence the model's decisions.
The paper explores the use of Uncertainty Quantification (UQ) and Explainable AI (XAI) methods to uncover these hidden biases in LLMs.
UQ approaches like Test-Time Data Augmentation, Ensemble Methods, and Verbal Uncertainty can reveal biases by analyzing the model's certainty and variations in its outputs.
XAI methods such as Perturbation-based Approaches, Surrogate Models, and Prompting can provide insights into the factors influencing the model's decisions, potentially uncovering unanticipated biases.
The paper emphasizes the importance of local, user-centric explanations that empower users to recognize biases in specific instances, rather than seeking general statements about the model.
Visualization tools and user feedback mechanisms are proposed to facilitate the bias detection process and enable iterative model refinement.
The paper acknowledges limitations, such as the inherent subjectivity of bias, the closed-source nature of many LLMs, and the challenge of disentangling other influences in UQ and XAI results.
Overall, this research contributes to the ongoing discourse on bias in AI by providing new insights and methods for unanticipated bias detection in LLMs, promoting more transparent, accountable, and unbiased AI systems.
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