activity
20212026
most citedA Field Guide to Federated Optimization

167 citations · 181 across the 12 of their papers we have counts for

collaborators

13 papers

cs.LG2026

OptRot: Mitigating Weight Outliers via Data-Free Rotations for Post-Training Quantization

Advait Gadhikar, Riccardo Grazzi, James Hensman

The presence of outliers in Large Language Models (LLMs) weights and activations makes them difficult to quantize. Recent work has leveraged rotations to mitigate these outliers. I…

cs.LG2025

Pay Attention to Small Weights

Chao Zhou, Tom Jacobs, Advait Gadhikar +1

Finetuning large pretrained neural networks is known to be resource-intensive, both in terms of memory and computational cost. To mitigate this, a common approach is to restrict tr…

cs.LG2025

Hyperbolic Aware Minimization: Implicit Bias for Sparsity

Tom Jacobs, Advait Gadhikar, Celia Rubio-Madrigal +1

Understanding the implicit bias of optimization algorithms is key to explaining and improving the generalization of deep models. The hyperbolic implicit bias induced by pointwise o…

cs.LG2025

Sign-In to the Lottery: Reparameterizing Sparse Training From Scratch

Advait Gadhikar, Tom Jacobs, Chao Zhou +1

The performance gap between training sparse neural networks from scratch (PaI) and dense-to-sparse training presents a major roadblock for efficient deep learning. According to the…

cs.CV2024

Attention Is All You Need For Mixture-of-Depths Routing

Advait Gadhikar, Souptik Kumar Majumdar, Niclas Popp +3

Advancements in deep learning are driven by training models with increasingly larger numbers of parameters, which in turn heightens the computational demands. To address this issue…

cs.LG2024

Cyclic Sparse Training: Is it Enough?

Advait Gadhikar, Sree Harsha Nelaturu, Rebekka Burkholz

The success of iterative pruning methods in achieving state-of-the-art sparse networks has largely been attributed to improved mask identification and an implicit regularization in…

cs.LG2024

Masks, Signs, And Learning Rate Rewinding

Advait Gadhikar, Rebekka Burkholz

Learning Rate Rewinding (LRR) has been established as a strong variant of Iterative Magnitude Pruning (IMP) to find lottery tickets in deep overparameterized neural networks. While…

cs.LG2022★ 2 cited

Dynamical Isometry for Residual Networks

Advait Gadhikar, Rebekka Burkholz

The training success, training speed and generalization ability of neural networks rely crucially on the choice of random parameter initialization. It has been shown for multiple a…

cs.LG2022★ 4 cited

Why Random Pruning Is All We Need to Start Sparse

Advait Gadhikar, Sohom Mukherjee, Rebekka Burkholz

Random masks define surprisingly effective sparse neural network models, as has been shown empirically. The resulting sparse networks can often compete with dense architectures and…

cs.LG2021★ 5 cited

Leveraging Spatial and Temporal Correlations in Sparsified Mean Estimation

Divyansh Jhunjhunwala, Ankur Mallick, Advait Gadhikar +2

We study the problem of estimating at a central server the mean of a set of vectors distributed across several nodes (one vector per node). When the vectors are high-dimensional, t…

cs.LG2021★ 2 cited

Lottery Tickets with Nonzero Biases

Jonas Fischer, Advait Gadhikar, Rebekka Burkholz

The strong lottery ticket hypothesis holds the promise that pruning randomly initialized deep neural networks could offer a computationally efficient alternative to deep learning w…

cs.LG2021★ 167 cited

A Field Guide to Federated Optimization

Jianyu Wang, Zachary Charles, Zheng Xu +50

Federated learning and analytics are a distributed approach for collaboratively learning models (or statistics) from decentralized data, motivated by and designed for privacy prote…

cs.LG2021★ 1 cited

Adaptive Quantization of Model Updates for Communication-Efficient Federated Learning

Divyansh Jhunjhunwala, Advait Gadhikar, Gauri Joshi +1

Communication of model updates between client nodes and the central aggregating server is a major bottleneck in federated learning, especially in bandwidth-limited settings and hig…