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arXiv · 1903.04064

Sliced Wasserstein Discrepancy for Unsupervised Domain Adaptation

Chen-Yu Lee·Tanmay Batra·Mohammad Haris Baig·Daniel Ulbricht
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Abstract

In this work, we connect two distinct concepts for unsupervised domain adaptation: feature distribution alignment between domains by utilizing the task-specific decision boundary and the Wasserstein metric. Our proposed sliced Wasserstein discrepancy (SWD) is designed to capture the natural notion of dissimilarity between the outputs of task-specific classifiers. It provides a geometrically meaningful guidance to detect target samples that are far from the support of the source and enables efficient distribution alignment in an end-to-end trainable fashion. In the experiments, we validate the effectiveness and genericness of our method on digit and sign recognition, image classification, semantic segmentation, and object detection.

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Chen-Yu Lee, Tanmay Batra, Mohammad Haris Baig, Daniel Ulbricht. 2019-03-10. Sliced Wasserstein Discrepancy for Unsupervised Domain Adaptation. https://arxiv.org/abs/1903.04064

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