PXGen: A Post-hoc Explainable Method for Generative Models

• URL: http://arxiv.org/abs/2501.11827v1
• Date: Tue, 21 Jan 2025 02:10:50 GMT
• Title: PXGen: A Post-hoc Explainable Method for Generative Models
• Authors: Yen-Lung Huang, Ming-Hsi Weng, Hao-Tsung Yang,
• Abstract summary: generative AI (XAI) plays a crucial role in ensuring the responsible development and deployment of generative AI technologies. Recent research emphasizes that a proficient XAI method should adhere to a set of criteria, primarily focusing on two key areas. We propose PXGen, a post-hoc explainable method for generative models.
• Score: 0.5266869303483376
• License:
• Abstract: With the rapid growth of generative AI in numerous applications, explainable AI (XAI) plays a crucial role in ensuring the responsible development and deployment of generative AI technologies. XAI has undergone notable advancements and widespread adoption in recent years, reflecting a concerted push to enhance the transparency, interpretability, and credibility of AI systems. Recent research emphasizes that a proficient XAI method should adhere to a set of criteria, primarily focusing on two key areas. Firstly, it should ensure the quality and fluidity of explanations, encompassing aspects like faithfulness, plausibility, completeness, and tailoring to individual needs. Secondly, the design principle of the XAI system or mechanism should cover the following factors such as reliability, resilience, the verifiability of its outputs, and the transparency of its algorithm. However, research in XAI for generative models remains relatively scarce, with little exploration into how such methods can effectively meet these criteria in that domain. In this work, we propose PXGen, a post-hoc explainable method for generative models. Given a model that needs to be explained, PXGen prepares two materials for the explanation, the Anchor set and intrinsic & extrinsic criteria. Those materials are customizable by users according to their purpose and requirements. Via the calculation of each criterion, each anchor has a set of feature values and PXGen provides examplebased explanation methods according to the feature values among all the anchors and illustrated and visualized to the users via tractable algorithms such as k-dispersion or k-center.

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