Results 51 to 60 of about 830,323 (220)

Rademacher complexity for Markov chains: Applications to kernel smoothing and Metropolis–Hastings [PDF]

open access: yesBernoulli, 2018
Following the seminal approach by Talagrand, the concept of Rademacher complexity for independent sequences of random variables is extended to Markov chains.
P. Bertail, Franccois Portier
semanticscholar   +1 more source

Monotone bivariate Markov kernels with specified marginals [PDF]

open access: yesProceedings of the American Mathematical Society, 2010
Summary: Given two Markov kernels \( k\) and \( k'\) on an ordered Polish space, such that \( k\) is stochastically dominated by \( k'\), we establish the existence of: (i) a monotone bivariate Markov kernel whose marginals are \( k\) and \( k'\) and (ii) an upward coupler from \( k\) to \( k'\). This extends the results of \textit{V.
Machida, Motoya, Shibakov, Alexander
openaire   +1 more source

Unsupervised SAR image segmentation based on kernel TMFs with belief propagation

open access: yesThe Journal of Engineering, 2019
The triplet Markov field (TMF) model has achieved promising results in synthetic aperture radar (SAR) image segmentation. Focusing on the simple likelihood modelling of an SAR image and the effective optimisation of the TMF model, an unsupervised SAR ...
Lu Gan, Xiaoming Liu, Ziwei Li
doaj   +1 more source

The Hypergroup Property and Representation of Markov Kernels [PDF]

open access: yes, 2008
accept\'e au "S\'eminaire de Probabilit\'es"
Bakry, Dominique, Huet, Nolwen
openaire   +3 more sources

Calculating principal eigen-functions of non-negative integral kernels: particle approximations and applications [PDF]

open access: yes, 2016
Often in applications such as rare events estimation or optimal control it is required that one calculates the principal eigen-function and eigen-value of a non-negative integral kernel.
Kantas, Nikolas, Whiteley, Nick
core   +3 more sources

Memory kernel approach to generalized Pauli channels: Markovian, semi-Markov, and beyond [PDF]

open access: yes, 2017
In this paper, we analyze the evolution of the generalized Pauli channels governed by the memory kernel master equation. We provide necessary and sufficient conditions for the memory kernel to give rise to the legitimate (completely positive and trace ...
Katarzyna Siudzi'nska, D. Chru'sci'nski
semanticscholar   +1 more source

Non ultracontractive heat kernel bounds by Lyapunov conditions [PDF]

open access: yes, 2013
Nash and Sobolev inequalities are known to be equivalent to ultracontractive properties of heat-like Markov semigroups, hence to uniform on-diagonal bounds on their kernel densities.
Bolley, François   +2 more
core   +3 more sources

Transformation of Hand-Shape Features for a Biometric Identification Approach

open access: yesSensors, 2012
The present work presents a biometric identification system for hand shape identification. The different contours have been coded based on angular descriptions forming a Markov chain descriptor.
Jesús B. Alonso   +2 more
doaj   +1 more source

Time inhomogeneous Markov chains with wave-like behavior

open access: yes, 2010
Starting from a given Markov kernel on a finite set $V$ and a bijection $g$ of $V$, we construct and study a time inhomogeneous Markov chain whose kernel at time $n$ is obtained from $K$ by transport of $g^{n-1}$.
Saloff-Coste, L., Zúñiga, J.
core   +1 more source

Stochastic monotonicity and duality for one-dimensional Markov processes [PDF]

open access: yes, 2011
The theory of monotonicity and duality is developed for general one-dimensional Feller processes, extending the approach from [11]. Moreover it is shown that local monotonicity conditions (conditions on the Lévy kernel) are sufficient to prove the well-
Kolokoltsov, V. N. (Vasiliĭ Nikitich)
core   +1 more source

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