activity
20142023
most citedEscaping Saddles with Stochastic Gradients

79 citations · 180 across the 19 of their papers we have counts for

collaborators

19 papers

cs.LG2023

Towards Training Without Depth Limits: Batch Normalization Without Gradient Explosion

Alexandru Meterez, Amir Joudaki, Francesco Orabona +3

Normalization layers are one of the key building blocks for deep neural networks. Several theoretical studies have shown that batch normalization improves the signal propagation, b…

cs.LG2023★ 6 cited

Transformers learn to implement preconditioned gradient descent for in-context learning

Kwangjun Ahn, Xiang Cheng, Hadi Daneshmand +1

Several recent works demonstrate that transformers can implement algorithms like gradient descent. By a careful construction of weights, these works show that multiple layers of tr…

cs.LG2023★ 3 cited

On the impact of activation and normalization in obtaining isometric embeddings at initialization

Amir Joudaki, Hadi Daneshmand, Francis Bach

In this paper, we explore the structure of the penultimate Gram matrix in deep neural networks, which contains the pairwise inner products of outputs corresponding to a batch of in…

cs.LG2023

Efficient displacement convex optimization with particle gradient descent

Hadi Daneshmand, Jason D. Lee, Chi Jin

Particle gradient descent, which uses particles to represent a probability measure and performs gradient descent on particles in parallel, is widely used to optimize functions of p…

cs.LG2022

On Bridging the Gap between Mean Field and Finite Width in Deep Random Neural Networks with Batch Normalization

Amir Joudaki, Hadi Daneshmand, Francis Bach

Mean field theory is widely used in the theoretical studies of neural networks. In this paper, we analyze the role of depth in the concentration of mean-field predictions, specific…

cs.LG2022

Polynomial-time Sparse Measure Recovery: From Mean Field Theory to Algorithm Design

Hadi Daneshmand, Francis Bach

Mean field theory has provided theoretical insights into various algorithms by letting the problem size tend to infinity. We argue that the applications of mean-field theory go bey…