Revisiting the Robustness of the Minimum Error Entropy Criterion: A
Transfer Learning Case Study
- URL: http://arxiv.org/abs/2307.08572v4
- Date: Tue, 25 Jul 2023 10:06:18 GMT
- Title: Revisiting the Robustness of the Minimum Error Entropy Criterion: A
Transfer Learning Case Study
- Authors: Luis Pedro Silvestrin, Shujian Yu, Mark Hoogendoorn
- Abstract summary: This paper revisits the robustness of the minimum error entropy criterion to deal with non-Gaussian noises.
We investigate its feasibility and usefulness in real-life transfer learning regression tasks, where distributional shifts are common.
- Score: 16.07380451502911
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Coping with distributional shifts is an important part of transfer learning
methods in order to perform well in real-life tasks. However, most of the
existing approaches in this area either focus on an ideal scenario in which the
data does not contain noises or employ a complicated training paradigm or model
design to deal with distributional shifts. In this paper, we revisit the
robustness of the minimum error entropy (MEE) criterion, a widely used
objective in statistical signal processing to deal with non-Gaussian noises,
and investigate its feasibility and usefulness in real-life transfer learning
regression tasks, where distributional shifts are common. Specifically, we put
forward a new theoretical result showing the robustness of MEE against
covariate shift. We also show that by simply replacing the mean squared error
(MSE) loss with the MEE on basic transfer learning algorithms such as
fine-tuning and linear probing, we can achieve competitive performance with
respect to state-of-the-art transfer learning algorithms. We justify our
arguments on both synthetic data and 5 real-world time-series data.
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