SurroCBM: Concept Bottleneck Surrogate Models for Generative Post-hoc Explanation

• URL: http://arxiv.org/abs/2310.07698v1
• Date: Wed, 11 Oct 2023 17:46:59 GMT
• Title: SurroCBM: Concept Bottleneck Surrogate Models for Generative Post-hoc Explanation
• Authors: Bo Pan, Zhenke Liu, Yifei Zhang, Liang Zhao
• Abstract summary: This paper introduces the Concept Bottleneck Surrogate Models (SurroCBM) to explain black-box models. SurroCBM identifies shared and unique concepts across various black-box models and employs an explainable surrogate model for post-hoc explanations. An effective training strategy using self-generated data is proposed to enhance explanation quality continuously.
• Score: 11.820167569334444
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Explainable AI seeks to bring light to the decision-making processes of black-box models. Traditional saliency-based methods, while highlighting influential data segments, often lack semantic understanding. Recent advancements, such as Concept Activation Vectors (CAVs) and Concept Bottleneck Models (CBMs), offer concept-based explanations but necessitate human-defined concepts. However, human-annotated concepts are expensive to attain. This paper introduces the Concept Bottleneck Surrogate Models (SurroCBM), a novel framework that aims to explain the black-box models with automatically discovered concepts. SurroCBM identifies shared and unique concepts across various black-box models and employs an explainable surrogate model for post-hoc explanations. An effective training strategy using self-generated data is proposed to enhance explanation quality continuously. Through extensive experiments, we demonstrate the efficacy of SurroCBM in concept discovery and explanation, underscoring its potential in advancing the field of explainable AI.

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