Orthonormal sets with non-negative Dirichlet kernels
نویسندگان
چکیده
منابع مشابه
Non-negative Matrix Factorization on Kernels
In this paper, we extend the original non-negative matrix factorization (NMF) to kernel NMF (KNMF). The advantages of KNMF over NMF are: 1) it could extract more useful features hidden in the original data through some kernel-induced nonlinear mappings; 2) it can deal with data where only relationships (similarities or dissimilarities) between objects are known; 3) it can process data with nega...
متن کاملFinite p-groups with few non-linear irreducible character kernels
Abstract. In this paper, we classify all of the finite p-groups with at most three non linear irreducible character kernels.
متن کاملCSP Search with Responsibility Sets and Kernels
We introduce data structures called responsibility set and kernel. We present an algorithm FCRK, which is a modification of FC that maintains these structures and uses them for pruning of the search space. According to our experimental evaluation, FC-RK outperforms FC-CBJ on constraint networks encoding graph k-coloring instances and on non-dense random binary constraint networks.
متن کاملHeat kernels and sets with fractal structure
In these notes I will concentrate mainly on heat kernel estimates on ‘pre-fractal graphs’ – for what these are see below. In the final section I will then explain briefly how these estimates can be used to define diffusion processes on some regular true fractal sets. For other (mathematical) surveys of this area see [3], [48], and Kigami’s book [33]. A survey of the physics literature can be fo...
متن کاملSplines with non positive kernels
Non parametric regression methods can be presented in two main clusters. The one of smoothing splines methods requiring positive kernels and the other one known as Nonparametric Kernel Regression allowing the use of non positive kernels such as the Epanechnikov kernel. We propose a generalization of the smoothing spline method to include kernels which are still symmetric but not positive semi d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 1960
ISSN: 0002-9947
DOI: 10.1090/s0002-9947-1960-0111968-4