Search Results for author: Lisha Chen

Found 6 papers, 3 papers with code

Understanding Benign Overfitting in Gradient-Based Meta Learning

no code implementations27 Jun 2022 Lisha Chen, Songtao Lu, Tianyi Chen

While the conventional statistical learning theory suggests that overparameterized models tend to overfit, empirical evidence reveals that overparameterized meta learning methods still work well -- a phenomenon often called "benign overfitting."

Few-Shot Learning Learning Theory

Sharp-MAML: Sharpness-Aware Model-Agnostic Meta Learning

1 code implementation8 Jun 2022 Momin Abbas, Quan Xiao, Lisha Chen, Pin-Yu Chen, Tianyi Chen

Model-agnostic meta learning (MAML) is currently one of the dominating approaches for few-shot meta-learning.

Meta-Learning

Is Bayesian Model-Agnostic Meta Learning Better than Model-Agnostic Meta Learning, Provably?

1 code implementation6 Mar 2022 Lisha Chen, Tianyi Chen

In this paper, we aim to provide theoretical justifications for Bayesian MAML's advantageous performance by comparing the meta test risks of MAML and Bayesian MAML.

Meta-Learning

Face Alignment With Kernel Density Deep Neural Network

no code implementations ICCV 2019 Lisha Chen, Hui Su, Qiang Ji

Specifically, for face alignment, we adapt state-of-the-art hourglass neural network into a probabilistic neural network framework with landmark probability map as its output.

Face Alignment

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