Gauri Joshi

Efficient Straggler Replication in Large-Scale Parallel Computing

2019 · ACM Transactions on Modeling and Performance Evaluation of Computing Systems

In a cloud computing job with many parallel tasks, the tasks on the slowest machines (straggling tasks) become the bottleneck in the job completion. Computing frameworks such as MapReduce and Spark tackle this by replicating …

Adaptive Federated Learning via Dynamical System Model

2025 · arXiv (Cornell University)

Hyperparameter selection is critical for stable and efficient convergence of heterogeneous federated learning, where clients differ in computational capabilities, and data distributions are non-IID. Tuning hyperparameters is a manual and computationally expensive process as the …