  Because of the ambiguous and subjective property of the facial expression
recognition (FER) task, the label noise is widely existing in the FER dataset.
For this problem, in the training phase, current FER methods often directly
predict whether the label of the input image is noised or not, aiming to reduce
the contribution of the noised data in training. However, we argue that this
kind of method suffers from the low reliability of such noise data decision
operation. It makes that some mistakenly abounded clean data are not utilized
sufficiently and some mistakenly kept noised data disturbing the model learning
process. In this paper, we propose a more reliable noise-label suppression
method called ReSup (Reliable label noise Suppression for FER). First, instead
of directly predicting noised or not, ReSup makes the noise data decision by
modeling the distribution of noise and clean labels simultaneously according to
the disagreement between the prediction and the target. Specifically, to
achieve optimal distribution modeling, ReSup models the similarity distribution
of all samples. To further enhance the reliability of our noise decision
results, ReSup uses two networks to jointly achieve noise suppression.
Specifically, ReSup utilize the property that two networks are less likely to
make the same mistakes, making two networks swap decisions and tending to trust
decisions with high agreement. Extensive experiments on three popular
benchmarks show that the proposed method significantly outperforms
state-of-the-art noisy label FER methods by 3.01% on FERPlus becnmarks. Code:
https://github.com/purpleleaves007/FERDenoise
