Implicit Kernel
Implicit kernels represent a powerful approach to designing efficient and expressive machine learning models by implicitly defining kernel functions rather than explicitly storing their parameters. Current research focuses on leveraging implicit kernels within neural networks, particularly through novel architectures like hyper-convolutions and coordinate-based MLPs, to achieve full context interaction and improved performance with fewer parameters. This approach is proving valuable in diverse applications, including time series analysis, image classification (especially in medical imaging), and modeling spatio-temporal geophysical data, by enabling the incorporation of prior knowledge and the handling of nonlinear relationships. The resulting models offer advantages in terms of parameter efficiency, training speed, and the ability to capture complex patterns in data.