activity
20202023
most citedDensePure: Understanding Diffusion Models towards Adversarial Robustness

18 citations · 21 across the 9 of their papers we have counts for

collaborators

9 papers

cs.LG2023★ 3 cited

DiffSmooth: Certifiably Robust Learning via Diffusion Models and Local Smoothing

Jiawei Zhang, Zhongzhu Chen, Huan Zhang +2

Diffusion models have been leveraged to perform adversarial purification and thus provide both empirical and certified robustness for a standard model. On the other hand, different…

math.OC2023

Generalized Scaling for the Constrained Maximum-Entropy Sampling Problem

Zhongzhu Chen, Marcia Fampa, Jon Lee

The best practical techniques for exact solution of instances of the constrained maximum-entropy sampling problem, a discrete-optimization problem arising in the design of experime…

math.OC2023

Generalized Scaling for the Constrained Maximum-Entropy Sampling Problem

Zhongzhu Chen, Marcia Fampa, Jon Lee

The best techniques for the constrained maximum-entropy sampling problem, a discrete-optimization problem arising in the design of experiments, are via a variety of concave continu…

cs.LG2022★ 18 cited

DensePure: Understanding Diffusion Models towards Adversarial Robustness

Chaowei Xiao, Zhongzhu Chen, Kun Jin +6

Diffusion models have been recently employed to improve certified robustness through the process of denoising. However, the theoretical understanding of why diffusion models are ab…

cs.LG2022

How to Attain Communication-Efficient DNN Training? Convert, Compress, Correct

Zhong-Jing Chen, Eduin E. Hernandez, Yu-Chih Huang +1

This paper introduces CO3 -- an algorithm for communication-efficient federated Deep Neural Network (DNN) training. CO3 takes its name from three processing applied which reduce th…

cs.LG2022

Convert, compress, correct: Three steps toward communication-efficient DNN training

Zhong-Jing Chen, Eduin E. Hernandez, Yu-Chih Huang +1

In this paper, we introduce a novel algorithm, , for communication-efficiency distributed Deep Neural Network (DNN) training. is a joint training/com…

math.OC2021

On computing with some convex relaxations for the maximum-entropy sampling problem

Zhongzhu Chen, Marcia Fampa, Jon Lee

Based on a factorization of an input covariance matrix, we define a mild generalization of an upper bound of Nikolov (2015) and Li and Xie (2020) for the NP-Hard constrained maximu…

cs.LG2021

DNN gradient lossless compression: Can GenNorm be the answer?

Zhong-Jing Chen, Eduin E. Hernandez, Yu-Chih Huang +1

In this paper, the problem of optimal gradient lossless compression in Deep Neural Network (DNN) training is considered. Gradient compression is relevant in many distributed DNN tr…

math.OC2020

Mixing convex-optimization bounds for maximum-entropy sampling

Zhongzhu Chen, Marcia Fampa, Amélie Lambert +1

The maximum-entropy sampling problem is a fundamental and challenging combinatorial-optimization problem, with application in spatial statistics. It asks to find a maximum-determin…