Concept Distillation: Leveraging Human-Centered Explanations for Model Improvement

• URL: http://arxiv.org/abs/2311.15303v1
• Date: Sun, 26 Nov 2023 14:00:14 GMT
• Title: Concept Distillation: Leveraging Human-Centered Explanations for Model Improvement
• Authors: Avani Gupta, Saurabh Saini, P J Narayanan
• Abstract summary: Concept Activation Vectors (CAVs) estimate a model's sensitivity and possible biases to a given concept. We extend CAVs from post-hoc analysis to ante-hoc training in order to reduce model bias through fine-tuning. We show applications of concept-sensitive training to debias several classification problems.
• Score: 3.026365073195727
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Humans use abstract concepts for understanding instead of hard features. Recent interpretability research has focused on human-centered concept explanations of neural networks. Concept Activation Vectors (CAVs) estimate a model's sensitivity and possible biases to a given concept. In this paper, we extend CAVs from post-hoc analysis to ante-hoc training in order to reduce model bias through fine-tuning using an additional Concept Loss. Concepts were defined on the final layer of the network in the past. We generalize it to intermediate layers using class prototypes. This facilitates class learning in the last convolution layer, which is known to be most informative. We also introduce Concept Distillation to create richer concepts using a pre-trained knowledgeable model as the teacher. Our method can sensitize or desensitize a model towards concepts. We show applications of concept-sensitive training to debias several classification problems. We also use concepts to induce prior knowledge into IID, a reconstruction problem. Concept-sensitive training can improve model interpretability, reduce biases, and induce prior knowledge. Please visit https://avani17101.github.io/Concept-Distilllation/ for code and more details.

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