← Search

Gavin Weiguang Ding

5 accepted papers

2020

MMA Training: Direct Input Space Margin Maximization through Adversarial Training

ICLR 2020poster

We study adversarial robustness of neural networks from a margin maximization perspective, where margins are defined as the distances from inputs to a classifier's decision boundary. Our study shows that maximizing margins can be achieved by minimizing the adversarial loss on the decision boundary a…

Cited by 358SourcecodeScholar
2020

On Minimax Optimality of GANs for Robust Mean Estimation

AISTATS 2020poster

Generative adversarial networks (GANs) have become one of the most popular generative modeling techniques in machine learning. In this work, we study the statistical and robust properties of GANs for Gaussian mean estimation under Huber’s contamination model, where an epsilon proportion of training…

2019

On the Sensitivity of Adversarial Robustness to Input Data Distributions

ICLR 2019poster

Neural networks are vulnerable to small adversarial perturbations. Existing literature largely focused on understanding and mitigating the vulnerability of learned models. In this paper, we demonstrate an intriguing phenomenon about the most popular robust training method in the literature, adversar…

Cited by 68SourcePDFScholar
2018

Dimensionality Reduction has Quantifiable Imperfections: Two Geometric Bounds

NeurIPS 2018poster

In this paper, we investigate Dimensionality reduction (DR) maps in an information retrieval setting from a quantitative topology point of view. In particular, we show that no DR maps can achieve perfect precision and perfect recall simultaneously. Thus a continuous DR map must have imperfect precis…

2018

Improving GAN Training via Binarized Representation Entropy (BRE) Regularization

ICLR 2018poster

We propose a novel regularizer to improve the training of Generative Adversarial Networks (GANs). The motivation is that when the discriminator D spreads out its model capacity in the right way, the learning signals given to the generator G are more informative and diverse, which helps G to explore…