Local Update
Local update methods in distributed machine learning aim to improve efficiency and robustness by performing multiple model updates on individual devices before aggregating results. Current research focuses on optimizing update frequency and incorporating techniques like gradient compression, layer-wise updates, and cache management to address challenges such as stragglers, communication bottlenecks, and data heterogeneity in federated learning and other distributed settings. These advancements enhance the scalability and privacy of machine learning models, particularly in resource-constrained environments and applications requiring collaborative training across multiple parties. The impact is seen in improved training speed, reduced communication costs, and enhanced resilience to adversarial attacks.