Generalization Error Bound
Generalization error bounds aim to quantify how well a machine learning model trained on a finite dataset will perform on unseen data. Current research focuses on deriving tighter bounds for various model architectures, including neural networks (especially deep networks with weight decay and specific activation functions), and algorithms like stochastic gradient descent and federated learning, often leveraging techniques from information theory and optimal transport. These bounds are crucial for understanding model robustness and reliability, informing algorithm design, and providing theoretical guarantees for applications ranging from natural language processing to quantum machine learning. Improved bounds contribute to more efficient and trustworthy machine learning systems.