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Information geometry of Markov Kernels: a survey

open access: yesFrontiers in Physics, 2023
Information geometry and Markov chains are two powerful tools used in modern fields such as finance, physics, computer science, and epidemiology. In this survey, we explore their intersection, focusing on the theoretical framework.
Geoffrey Wolfer, Shun Watanabe
doaj   +2 more sources

Network motif detection using hidden markov models [PDF]

open access: yesScientific Reports
Graphical representations model complex networks by encoding entities as vertices and interactions as edges, with recurring subgraphs—or motifs—revealing fundamental organizational principles. We present a novel application of Hidden Markov Models (HMMs)
Costas Bampos, Vasileios Megalooikonomou
doaj   +2 more sources

Semipullbacks of labelled Markov processes [PDF]

open access: yesLogical Methods in Computer Science, 2021
A labelled Markov process (LMP) consists of a measurable space $S$ together with an indexed family of Markov kernels from $S$ to itself. This structure has been used to model probabilistic computations in Computer Science, and one of the main problems in
Jan Pachl, Pedro Sánchez Terraf
doaj   +1 more source

Networks with Complex Weights: Green Function and Power Series

open access: yesMathematics, 2022
We introduce a Green function and analogues of other related kernels for finite and infinite networks whose edge weights are complex-valued admittances with positive real part.
Anna Muranova, Wolfgang Woess
doaj   +1 more source

Non-Stationary Stochastic Global Optimization Algorithms

open access: yesAlgorithms, 2022
Studying the theoretical properties of optimization algorithms such as genetic algorithms and evolutionary strategies allows us to determine when they are suitable for solving a particular type of optimization problem. Such a study consists of three main
Jonatan Gomez, Andres Rivera
doaj   +1 more source

Adversarially Training MCMC with Non-Volume-Preserving Flows

open access: yesEntropy, 2022
Recently, flow models parameterized by neural networks have been used to design efficient Markov chain Monte Carlo (MCMC) transition kernels. However, inefficient utilization of gradient information of the target distribution or the use of volume ...
Shaofan Liu, Shiliang Sun
doaj   +1 more source

Searching remote homology with spectral clustering with symmetry in neighborhood cluster kernels. [PDF]

open access: yesPLoS ONE, 2013
Remote homology detection among proteins utilizing only the unlabelled sequences is a central problem in comparative genomics. The existing cluster kernel methods based on neighborhoods and profiles and the Markov clustering algorithms are currently the ...
Ujjwal Maulik, Anasua Sarkar
doaj   +1 more source

Decomposition of Finitely Additive Markov Chains in Discrete Space

open access: yesMathematics, 2022
In this study, we consider general Markov chains (MC) defined by a transition probability (kernel) that is finitely additive. These Markov chains were constructed by S. Ramakrishnan within the concepts and symbolism of game theory.
Alexander Zhdanok, Anna Khuruma
doaj   +1 more source

A Wavelet-Based Computational Framework for a Block-Structured Markov Chain with a Continuous Phase Variable

open access: yesMathematics, 2023
We consider the computing issues of the steady probabilities for block-structured discrete-time Markov chains that are of upper-Hessenberg or lower-Hessenberg transition kernels with a continuous phase set.
Shuxia Jiang, Nian Liu, Yuanyuan Liu
doaj   +1 more source

Boolean Valued Representation of Random Sets and Markov Kernels with Application to Large Deviations

open access: yesMathematics, 2020
We establish a connection between random set theory and Boolean valued analysis by showing that random Borel sets, random Borel functions, and Markov kernels are respectively represented by Borel sets, Borel functions, and Borel probability measures in a
Antonio Avilés López   +1 more
doaj   +1 more source

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