LLM-assisted Concept Discovery: Automatically Identifying and Explaining Neuron Functions

• URL: http://arxiv.org/abs/2406.08572v1
• Date: Wed, 12 Jun 2024 18:19:37 GMT
• Title: LLM-assisted Concept Discovery: Automatically Identifying and Explaining Neuron Functions
• Authors: Nhat Hoang-Xuan, Minh Vu, My T. Thai,
• Abstract summary: Prior works have associated concepts with neurons based on examples of concepts or a pre-defined set of concepts. We propose to leverage multimodal large language models for automatic and open-ended concept discovery. We validate each concept by generating examples and counterexamples and evaluating the neuron's response on this new set of images.
• Score: 15.381209058506078
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Providing textual concept-based explanations for neurons in deep neural networks (DNNs) is of importance in understanding how a DNN model works. Prior works have associated concepts with neurons based on examples of concepts or a pre-defined set of concepts, thus limiting possible explanations to what the user expects, especially in discovering new concepts. Furthermore, defining the set of concepts requires manual work from the user, either by directly specifying them or collecting examples. To overcome these, we propose to leverage multimodal large language models for automatic and open-ended concept discovery. We show that, without a restricted set of pre-defined concepts, our method gives rise to novel interpretable concepts that are more faithful to the model's behavior. To quantify this, we validate each concept by generating examples and counterexamples and evaluating the neuron's response on this new set of images. Collectively, our method can discover concepts and simultaneously validate them, providing a credible automated tool to explain deep neural networks.

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