Results 111 to 120 of about 460,152 (328)
A Markov Chain Model for Contagion
Risks, 2014 We introduce a bivariate Markov chain counting process with contagion for modelling the clustering arrival of loss claims with delayed settlement for an insurance company.
Angelos Dassios, Hongbiao Zhao
doaj +1 more source
Stationary Probability Vectors of Higher-order Markov Chains [PDF]
arXiv, 2013 We consider the higher-order Markov Chain, and characterize the second order Markov chains admitting every probability distribution vector as a stationary vector. The result is used to construct Markov chains of higher-order with the same property. We also study conditions under which the set of stationary vectors of the Markov chain has a certain ...
arxiv
American Journal of Botany, EarlyView.Abstract Premise Uncarina contains 14 species of woody plants endemic to Madagascar. Its occurrence across dryland biomes on the island make it an interesting system to study the diversification of the flora. Methods Using samples of all species and 512 nuclear loci, we reconstructed phylogenetic trees to examine species relationships and assess their ...
Jeffrey P. Rose +3 more
wiley +1 more source
American Journal of Hematology, EarlyView.ABSTRACT Allogeneic hematopoietic stem‐cell transplantation (HCT) remains the only potentially curative therapy for patients with myelodysplastic neoplasms (MDS) and myelofibrosis (MF) and is the standard care for eligible patients with higher‐risk disease. Despite significant advancements, both diseases pose unique challenges due to their clinical and
Nico Gagelmann, Nicolaus Kröger
wiley +1 more source
An EM Algorithm for Continuous-time Bivariate Markov Chains [PDF]
arXiv, 2011 We study properties and parameter estimation of finite-state homogeneous continuous-time bivariate Markov chains. Only one of the two processes of the bivariate Markov chain is observable. The general form of the bivariate Markov chain studied here makes no assumptions on the structure of the generator of the chain, and hence, neither the underlying ...
arxiv
Making Markov chains less lazy [PDF]
, 2013 The mixing time of an ergodic, reversible Markov chain can be bounded in terms of the eigenvalues of the chain: specifically, the second-largest eigenvalue and the smallest eigenvalue. It has become standard to focus only on the second-largest eigenvalue,
Greenhill, Catherine
core
MATEC Web of Conferences, 2018 Properties of results obtained on Markov processes analysis in medical applications have been illustrated. Calculation was done for measurement of Thoracic Fluid Content by means of impedance cardiograph for chosen medical patients population.
Moszczyński Paweł, Walczak Andrzej
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Pulse‐Level Quantum Robust Control with Diffusion‐Based Reinforcement Learning
Advanced Physics Research, EarlyView.This paper proposes a diffusion‐based reinforcement learning method for pulse‐level quantum robust control (PQC‐DBRL) to enhance the robustness of pulse‐level quantum gate control. When evaluated across different Hamiltonian variations, PQC‐DBRL shows a smaller fidelity variance compared to GRAPE, indicating higher robustness against system parameter ...
Yuanjing Zhang +3 more
wiley +1 more source
Hepatology, EarlyView., 2022 Graphical summary of obesity‐induced NASH progression by LCN2 targeted to HSC activation. Abstract Background and Aims In obesity and type 2 diabetes mellitus, leptin promotes insulin resistance and contributes to the progression of NASH via activation of hepatic stellate cells (HSCs).
Kyung Eun Kim +12 more
wiley +1 more source
Modeling of hydrological drought durations and magnitudes: Experiences on Canadian streamflows
Journal of Hydrology: Regional Studies, 2014 Study region: North-west Ontario and eastern Canada. Study focus: This study utilized river flow sequences to predict hydrological drought parameters (duration and magnitude) on annual, monthly and weekly time scales. Analysis was conducted at the median
Tribeni C. Sharma, Umed S. Panu
doaj +1 more source