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20192026
most citedA Stochastic Derivative Free Optimization Method with Momentum

4 citations · 9 across the 25 of their papers we have counts for

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11 papers · 1 filter

cs.LG2026

TACO: Ternary Absolute-max Column-wise One-sparse Optimizer for LLM Fine-Tuning

Jichao Jiang, Cristian McGee, El Houcine Bergou +3

Full-parameter fine-tuning of large language models (LLMs) incurs substantial optimizer state memory overhead, limiting the model sizes that fit on modern GPUs. Existing approaches…

cs.LG2026

Trust the Direction, Search the Step: Zero-and-First-Order Methods for LLM Fine-Tuning

Cristian McGee, El Houcine Bergou, Aritra Dutta

Step-size selection remains a central challenge in large-scale neural network optimization; conservative steps slow convergence, while aggressive steps can destabilize it. We combi…

cs.LG2026

Beyond LoRA: Is Sparsity-Induced Adaptation Better?

Elijah Cadenhead, Cristian McGee, Xin Li +2

Low-rank adaptation (LoRA) and its variants provide a memory- and compute-efficient alternative to full fine-tuning of pre-trained models. However, questions remain about the compa…

cs.LG2025

FairEnergy: Contribution-Based Fairness meets Energy Efficiency in Federated Learning

Ouiame Marnissi, Hajar EL Hammouti, El Houcine Bergou

Federated learning (FL) enables collaborative model training across distributed devices while preserving data privacy. However, balancing energy efficiency and fair participation w…

cs.LG2025

Stabilizing Policy Gradient Methods via Reward Profiling

Shihab Ahmed, El Houcine Bergou, Aritra Dutta +1

Policy gradient methods, which have been extensively studied in the last decade, offer an effective and efficient framework for reinforcement learning problems. However, their perf…

cs.LG2025

If You Want to Be Robust, Be Wary of Initialization

Sofiane Ennadir, Johannes F. Lutzeyer, Michalis Vazirgiannis +1

Graph Neural Networks (GNNs) have demonstrated remarkable performance across a spectrum of graph-related tasks, however concerns persist regarding their vulnerability to adversaria…

cs.LG2024

Joint Probability Selection and Power Allocation for Federated Learning

Ouiame Marnissi, Hajar EL Hammouti, El Houcine Bergou

In this paper, we study the performance of federated learning over wireless networks, where devices with a limited energy budget train a machine learning model. The federated learn…

cs.LG2023

Demystifying the Myths and Legends of Nonconvex Convergence of SGD

Aritra Dutta, El Houcine Bergou, Soumia Boucherouite +3

Stochastic gradient descent (SGD) and its variants are the main workhorses for solving large-scale optimization problems with nonconvex objective functions. Although the convergenc…

cs.LG2022

Linear Scalarization for Byzantine-robust learning on non-IID data

Latifa Errami, El Houcine Bergou

In this work we study the problem of Byzantine-robust learning when data among clients is heterogeneous. We focus on poisoning attacks targeting the convergence of SGD. Although th…

cs.LG2022★ 1 cited

Personalized Federated Learning with Communication Compression

El Houcine Bergou, Konstantin Burlachenko, Aritra Dutta +1

In contrast to training traditional machine learning (ML) models in data centers, federated learning (FL) trains ML models over local datasets contained on resource-constrained het…

cs.LG2021★ 4 cited

Client Selection in Federated Learning based on Gradients Importance

Ouiame Marnissi, Hajar El Hammouti, El Houcine Bergou

Federated learning (FL) enables multiple devices to collaboratively learn a global model without sharing their personal data. In real-world applications, the different parties are…