# About Me

I am a Ph.D. student in the RISELab (former AMPLab), BDD and Math Department at University of California at Berkeley. I am advised by Michael Mahoney. My research interest lies in computing statistics, optimization and machine learning. Currently, I am interested in leveraging tools from randomized linear algebra to provide efficient and scalable solutions for large-scale optimization and learning problems. I am also working on the theory and application of deep learning. Before joining UC Berkeley, I recieved my B.S. in Math from Zhiyuan Honor College at Shanghai Jiao Tong University. CV

# Publications

### Papers

- JumpReLU: A Retrofit Defense Strategy for Adversarial Attacks.

NB Erichson, Z Yao, MW Mahoney

Under review - Trust Region Based Adversarial Attack on Neural Networks.

Z Yao, A Gholami, P Xu, K Keutzer, MW Mahoney

arXiv preprint arXiv - Parameter Re-Initialization through Cyclical Batch Scheduling.

N Mu, Z Yao, A Gholami, K Keutzer, MW Mahoney

arXiv preprint arXiv

Accepted for publication, Proc. MLSYS Workshop at NIPS 2018 - On the Computational Inefficiency of Large Batch Sizes for Stochastic Gradient Descent.

N Golmant, N Vemuri, Z Yao, V Feinberg, A Gholami, K Rothauge, MW Mahoney, J Gonzalez

arXiv preprint arXiv - Large batch size training of neural networks with adversarial training and second-order information.

Z Yao, A Gholami, K Keutzer, MW Mahoney

arXiv preprint arXiv - Hessian-based Analysis of Large Batch Training and Robustness to Adversaries.

Z Yao, A Gholami, Q Lei, K Keutzer, MW Mahoney

arXiv preprint arXiv

Accepted for publication, Proc. NIPS 2018. - Inexact non-convex Newton-type methods.

Z Yao, P Xu, F Roosta-Khorasani, MW Mahoney

arXiv preprint arXiv - A hybrid adaptive MCMC algorithm in function spaces.

Q Zhou, Z Hu, Z Yao, J Li

arXiv preprint arXiv

SIAM/ASA Journal on Uncertainty Quantification 5 (1), 621-639 - On an adaptive preconditioned CrankâNicolson MCMC algorithm for infinite dimensional Bayesian inference.

Z Hu, Z Yao, J Li

arXiv preprint arXiv

Journal of Computational Physics 332, 492-503 - A TV-Gaussian prior for infinite-dimensional Bayesian inverse problems and its numerical implementation.

Z Yao, Z Hu, J Li

arXiv preprint arXiv

Inverse Problems 32 (7), 075006

### Workshops

- An Empirical Exploration of Gradient Correlations in Deep Learning.

D Rothchild, R Fox, N Golmant, J Gonzalez, MW Mahoney, K Rothauge, I Stoica and Z Yao

Integration of Deep Learning Theories, NeurIPS 2018