Everyday, large amounts of sensitive data is distributed across mobile
phones, wearable devices, and other sensors. Traditionally, these enormous
datasets have been processed on a single system, with complex models being
trained to make valuable predictions. Distributed machine learning techniques
such as Federated and Split Learning have recently been developed to protect
user data and privacy better while ensuring high performance. Both of these
distributed learning architectures have advantages and disadvantages. In this
paper, we examine these tradeoffs and suggest a new hybrid Federated Split
Learning architecture that combines the efficiency and privacy benefits of
both. Our evaluation demonstrates how our hybrid Federated Split Learning
approach can lower the amount of processing power required by each client
running a distributed learning system, reduce training and inference time while
keeping a similar accuracy. We also discuss the resiliency of our approach to
deep learning privacy inference attacks and compare our solution to other
recently proposed benchmarks.