Ali Jadbabaie

Global optimality conditions for deep neural networks

2017 · arXiv (Cornell University)

We study the error landscape of deep linear and nonlinear neural networks with the squared error loss. Minimizing the loss of a deep linear neural network is a nonconvex problem, and despite recent progress, our …

Time varying regression with hidden linear dynamics

2021 · arXiv (Cornell University)

We revisit a model for time-varying linear regression that assumes the unknown parameters evolve according to a linear dynamical system. Counterintuitively, we show that when the underlying dynamics are stable the parameters of this model …