Kernel methods, being supported by a well-developed theory and coming with efficient algorithms, are among the most popular and successful machine learning techniques. From a mathematical point of view, these methods rest on the concept of kernels and function spaces generated by kernels, so called reproducing kernel Hilbert spaces. Motivated by recent developments of learning approaches in the context of interacting particle systems, we investigate kernel methods acting on data with many measurement variables. We show the rigorous mean field limit of kernels and provide a detailed analysis of the limiting reproducing kernel Hilbert space. Furthermore, several examples of kernels, that allow a rigorous mean field limit, are presented.
翻译:内核方法由于具备完善的理论基础和高效的算法,在机器学习中备受欢迎且获得了巨大成功。从数学角度来看,这些方法基于核和核生成的函数空间,即所谓的“复现核希尔伯特空间”。受相互作用粒子系统中学习方法的最近发展的启发,我们研究了在具有许多测量变量的数据上操作内核方法。我们展示了内核的严格平均场极限,并提供了对极限复现核希尔伯特空间的详细分析。此外,还提出了若干允许严格平均场极限的内核示例。