Results 111 to 120 of about 776,491 (337)
Models for Patch-Based Image Restoration
EURASIP Journal on Image and Video Processing, 2009 We present a supervised learning approach for object-category specific restoration, recognition, and segmentation of images which are blurred using an unknown kernel.
Petrovic Nemanja +3 more
doaj +2 more sources
Local Kernels and the Geometric Structure of Data [PDF]
, 2015 We introduce a theory of local kernels, which generalize the kernels used in the standard diffusion maps construction of nonparametric modeling. We prove that evaluating a local kernel on a data set gives a discrete representation of the generator of a ...
Berry, Tyrus, Sauer, Timothy
core +1 more source
Data assimilation with extremum Monte Carlo methods
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study presents the extremum Monte Carlo filter as a data assimilation method and, in particular, a variant of the variational approach (three‐ and four‐dimensional variational), where the state estimates are obtained by solving an optimization problem numerically over a space of prediction functions, instead of the state space itself.
Karim Moussa, Siem Jan Koopman
wiley +1 more source
Quality and Reliability Engineering International, EarlyView.ABSTRACT Percutaneous transhepatic biliary drainage (PTBD) catheter placement is known to have a high readmission rate. This work focuses on monitoring the change in readmission rate after a new clinical paradigm for post‐procedural care is implemented for the PTBD procedures.
Muhammed Aljifri +2 more
wiley +1 more source
Multiplicative random walk Metropolis-Hastings on the real line
, 2011 In this article we propose multiplication based random walk Metropolis Hastings (MH) algorithm on the real line. We call it the random dive MH (RDMH) algorithm.
A Jasra +20 more
core +1 more source
Semispectral Measures and Feller markov Kernels
, 2012 We give a characterization of commutative semispectral measures by means of Feller and Strong Feller Markov kernels. In particular: {itemize} we show that a semispectral measure $F$ is commutative if and only if there exist a self-adjoint operator $A$ and a Markov kernel $ _{(\cdot)}(\cdot): \times\mathcal{B}(\mathbb{R})\to[0,1]$, $ \subset (A ...
openaire +2 more sources
Risk Times in Mission‐Oriented Systems
Quality and Reliability Engineering International, EarlyView.ABSTRACT This article assesses risk times in mission‐oriented systems with high safety standards. We examine critical times under two safety policies. The first requires that the system's reliability function, known the first failure of the components, must exceed a reliability level throughout the mission.
Antonio Arriaza +2 more
wiley +1 more source
Splitting-Based Regenerations for Accelerated Simulation of Queues
MathematicsIn this paper, we address the problem of increasing the number of regenerations in the simulation of the workload process in a single-server queueing system.
Irina Peshkova +2 more
doaj +1 more source
Modeling Temporal Structure in Music for Emotion Prediction using Pairwise Comparisons [PDF]
, 2014 The temporal structure of music is essential for the cognitive processes related to the emotions expressed in music. However, such temporal information is often disregarded in typical Music Information Retrieval modeling tasks of predicting higher-level ...
Larsen, Jens +2 more
core +1 more source
Asymptotics of a discrete-time particle system near a reflecting boundary
, 2012 We examine a discrete-time Markovian particle system on the quarter-plane introduced by M. Defosseux. The vertical boundary acts as a reflecting wall. The particle system lies in the Anisotropic Kardar-Parisi-Zhang with a wall universality class.
A. Aptekarev +12 more
core +1 more source