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Prototype-based Concept Grounding

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Authors:

(1) Sanchit Sinha, University of Virginia ([email protected]);

(2) Guangzhi Xiong, University of Virginia ([email protected]);

(3) Aidong Zhang, University of Virginia ([email protected]).

Table of Links

Abstract and 1 Introduction

2 Related Work

3 Methodology and 3.1 Representative Concept Extraction

3.2 Self-supervised Contrastive Concept Learning

3.3 Prototype-based Concept Grounding

3.4 End-to-end Composite Training

4 Experiments and 4.1 Datasets and Networks

4.2 Hyperparameter Settings

4.3 Evaluation Metrics and 4.4 Generalization Results

4.5 Concept Fidelity and 4.6 Qualitative Visualization

5 Conclusion and References

Appendix

3.3 Prototype-based Concept Grounding


Figure 3: Prototype-based concept grounding (PCG). Concept grounding ensures the concept representations learned from both source and target domains are grounded to a representative concept representation prototype (Green).


Concept Fidelity Regularization. Concept fidelity attempts to enforce the similarity of concepts through a similarity measure s(·, ·) of data instances from the same class in the same domain. Formally,



This paper is available on arxiv under CC BY 4.0 DEED license.


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