Tackling Instance-Dependent Label Noise via a Universal Probabilistic Model

• URL: http://arxiv.org/abs/2101.05467v1
• Date: Thu, 14 Jan 2021 05:43:51 GMT
• Title: Tackling Instance-Dependent Label Noise via a Universal Probabilistic Model
• Authors: Qizhou Wang, Bo Han, Tongliang Liu, Gang Niu, Jian Yang, Chen Gong
• Abstract summary: This paper proposes a simple yet universal probabilistic model, which explicitly relates noisy labels to their instances. Experiments on datasets with both synthetic and real-world label noise verify that the proposed method yields significant improvements on robustness.
• Score: 80.91927573604438
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The drastic increase of data quantity often brings the severe decrease of data quality, such as incorrect label annotations, which poses a great challenge for robustly training Deep Neural Networks (DNNs). Existing learning \mbox{methods} with label noise either employ ad-hoc heuristics or restrict to specific noise assumptions. However, more general situations, such as instance-dependent label noise, have not been fully explored, as scarce studies focus on their label corruption process. By categorizing instances into confusing and unconfusing instances, this paper proposes a simple yet universal probabilistic model, which explicitly relates noisy labels to their instances. The resultant model can be realized by DNNs, where the training procedure is accomplished by employing an alternating optimization algorithm. Experiments on datasets with both synthetic and real-world label noise verify that the proposed method yields significant improvements on robustness over state-of-the-art counterparts.

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