Learning Generalizable Models via Disentangling Spurious and Enhancing Potential Correlations

• URL: http://arxiv.org/abs/2401.05752v1
• Date: Thu, 11 Jan 2024 09:00:22 GMT
• Title: Learning Generalizable Models via Disentangling Spurious and Enhancing Potential Correlations
• Authors: Na Wang, Lei Qi, Jintao Guo, Yinghuan Shi, Yang Gao
• Abstract summary: Domain generalization (DG) aims to train a model on multiple source domains to ensure that it can generalize well to an arbitrary unseen target domain. Adopting multiple perspectives, such as the sample and the feature, proves to be effective. In this paper, we focus on improving the generalization ability of the model by compelling it to acquire domain-invariant representations from both the sample and feature perspectives.
• Score: 28.38895118573957
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Domain generalization (DG) intends to train a model on multiple source domains to ensure that it can generalize well to an arbitrary unseen target domain. The acquisition of domain-invariant representations is pivotal for DG as they possess the ability to capture the inherent semantic information of the data, mitigate the influence of domain shift, and enhance the generalization capability of the model. Adopting multiple perspectives, such as the sample and the feature, proves to be effective. The sample perspective facilitates data augmentation through data manipulation techniques, whereas the feature perspective enables the extraction of meaningful generalization features. In this paper, we focus on improving the generalization ability of the model by compelling it to acquire domain-invariant representations from both the sample and feature perspectives by disentangling spurious correlations and enhancing potential correlations. 1) From the sample perspective, we develop a frequency restriction module, guiding the model to focus on the relevant correlations between object features and labels, thereby disentangling spurious correlations. 2) From the feature perspective, the simple Tail Interaction module implicitly enhances potential correlations among all samples from all source domains, facilitating the acquisition of domain-invariant representations across multiple domains for the model. The experimental results show that Convolutional Neural Networks (CNNs) or Multi-Layer Perceptrons (MLPs) with a strong baseline embedded with these two modules can achieve superior results, e.g., an average accuracy of 92.30% on Digits-DG.

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