arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.08897cs.LGstat.ML
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基于类感知对齐的鲁棒无领域领域泛化

Robust Domain-Free Domain Generalization with Class-aware Alignment

Institute for Infocomm Research(信息通信研究院);Nanyang Technological University(南洋理工大学)

Wenyu Zhang, Mohamed Ragab, Ramon Sagarna

摘要:

虽然深度神经网络在各种学习任务上表现出最先进的性能,但它们的性能依赖于训练和测试分布相同的假设,这在现实世界的应用中可能不成立。领域泛化通过采用多个源域来构建鲁棒的模型来解决这个问题,该模型可以泛化到受数据分布变化影响的看不见的目标域。在本文中,我们提出了无域领域泛化(DFDG),模型无关的方法,以实现更好的泛化性能上看不见的测试域,而不需要源域标签。DFDG使用新的策略来学习域不变的类判别特征。它通过类条件软标签对齐样本的类关系,并使用传统上为图像分类网络的事后分析而开发的显着图,以从训练输入中去除表面观察。DFDG在时间序列传感器和图像分类公共数据集上都获得了有竞争力的性能。

英文摘要:

While deep neural networks demonstrate state-of-the-art performance on a variety of learning tasks, their performance relies on the assumption that train and test distributions are the same, which may not hold in real-world applications. Domain generalization addresses this issue by employing multiple source domains to build robust models that can generalize to unseen target domains subject to shifts in data distribution. In this paper, we propose Domain-Free Domain Generalization (DFDG), a model-agnostic method to achieve better generalization performance on the unseen test domain without the need for source domain labels. DFDG uses novel strategies to learn domain-invariant class-discriminative features. It aligns class relationships of samples through class-conditional soft labels, and uses saliency maps, traditionally developed for post-hoc analysis of image classification networks, to remove superficial observations from training inputs. DFDG obtains competitive performance on both time series sensor and image classification public datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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