Contact: wg2279 (at) columbia (dot) edu

- Wenbo Gao*, Laura Graesser*, Krzysztof Choromanski*, Xingyou Song, Nevena Lazic, Pannag Sanketi, Vikas Sindhwani, and Navdeep Jaitly.
*Robotic Table Tennis with Model-Free Reinforcement Learning*. [pdf][arXiv]

To appear in IROS 2020.

- Xingyou Song, Yuxiang Yang, Krzysztof Choromanski, Ken Caluwaerts, Wenbo Gao, Chelsea Finn, and Jie Tan.
*Rapidly Adaptable Legged Robots via Evolutionary Meta-Learning*. [arXiv]

To appear in IROS 2020.

- Wenbo Gao, Donald Goldfarb, and Frank E. Curtis.
*ADMM for Multiaffine Constrained Optimization*. [pdf][arXiv]

Optimization Methods and Software, 35-2 (2020), pp. 257-303. - Xingyou Song*, Wenbo Gao*, Yuxiang Yang, Krzysztof Choromanski, Aldo Pacchiano, and Yunhao Tang.
*ES-MAML: Simple Hessian-Free Meta Learning*. [arXiv][OpenReview]

ICLR 2020.

Short version accepted as a spotlight in NeurIPS Workshop on Meta-Learning 2019. - Yunfei Teng*, Wenbo Gao*, Francois Chalus, Anna Choromanska, Donald Goldfarb, and Adrian Weller.
*Leader Stochastic Gradient Descent for Distributed Training of Deep Learning Models*. [pdf][arXiv][nips.cc]

Advances in Neural Information Processing Systems (NeurIPS) 32, 2019. - Wenbo Gao and Donald Goldfarb.
*Block BFGS Methods*. [pdf][arXiv][code]

SIAM Journal on Optimization 28-2 (2018), pp. 1205-1231. - Wenbo Gao and Donald Goldfarb.
*Quasi-Newton Methods: Superlinear Convergence Without Line Searches for Self-Concordant Functions*. [pdf][arXiv][code]

Optimization Methods and Software, 34-1 (2018), pp.194-217. - Chaoxu Zhou*, Wenbo Gao*, and Donald Goldfarb.
*Stochastic Adaptive Quasi-Newton Methods for Minimizing Expected Values*. [pdf][supplementary][PMLR]

Proceedings of the 34th ICML, PMLR 70:4150-4159, 2017.

- Wenbo Gao and Luke Postle.
*On the Minimum Edge Density of $K_4$-Free 6-Critical Graphs*. [pdf][appendix][arXiv] - Xingyou Song, Krzysztof Choromanski, Jack Parker-Holder, Yunhao Tang, Wenbo Gao, Aldo Pacchiano, Tamas Sarlos, Deepali Jain, Yuxiang Yang.
*Reinforcement Learning with Chromatic Networks*. [arXiv]

- Wenbo Gao and David Wagner.
*Highly symmetric matroids, the strong Rayleigh property, and sums of squares*. [arXiv]

*Dishonest Stopping, or: Bayesians and Bad Experiments*[pdf]

A discussion of a Bayesian inference problem discussed by David Speyer here. Mostly for self-edification.*A Complicated Solution to an Easy Problem*[pdf]

Why everyone should learn combinatorics /sarc.*Equivalent Simplicial Polytopes with Integer Vertices*[pdf]

A proof of a folklore result in polytope theory.*Cycles in Random Permutations*[pdf]

Some double counting proofs of identities from this post of Terry Tao.*Understanding the Primal and Dual Simplex Method*[pdf]

Expository note for IEOR students learning about linear programming.