collaborators

7 papers

cs.DC2026

FedOptima: Optimizing Resource Utilization in Federated Learning

Zihan Zhang, Leon Wong, Blesson Varghese

Federated learning (FL) systems facilitate distributed machine learning across a server and multiple devices. However, FL systems have low resource utilization on servers and devic…

cs.LG2026

DriftGuard: Mitigating Asynchronous Data Drift in Federated Learning

Yizhou Han, Di Wu, Blesson Varghese

In real-world Federated Learning (FL) deployments, data distributions on devices that participate in training evolve over time. This leads to asynchronous data drift, where differe…

cs.DC2026

Multi-DNN Inference of Sparse Models on Edge SoCs

Jiawei Luo, Di Wu, Simon Dobson +1

Modern edge applications increasingly require multi-DNN inference systems to execute tasks on heterogeneous processors, gaining performance from both concurrent execution and from…

cs.LG2025

Data-Free Pruning of Self-Attention Layers in LLMs

Dhananjay Saikumar, Blesson Varghese

Many self-attention sublayers in large language models (LLMs) can be removed with little to no loss. We attribute this to the Attention Suppression Hypothesis: during pre-training,…

cs.LG2025

Mosaic: Composite Projection Pruning for Resource-efficient LLMs

Bailey J. Eccles, Leon Wong, Blesson Varghese

Extensive compute and memory requirements limit the deployment of large language models (LLMs) on any hardware. Compression methods, such as pruning, can reduce model size, which i…

cs.DC2025

Ampere: Communication-Efficient and High-Accuracy Split Federated Learning

Zihan Zhang, Leon Wong, Blesson Varghese

A Federated Learning (FL) system collaboratively trains neural networks across devices and a server but is limited by significant on-device computation costs. Split Federated Learn…