Results 61 to 70 of about 102,876 (329)

Effective Berry–Esseen and concentration bounds for Markov chains with a spectral gap

open access: yesThe Annals of Applied Probability, 2019
Applying quantitative perturbation theory for linear operators, we prove nonasymptotic bounds for Markov chains whose transition kernel has a spectral gap in an arbitrary Banach algebra of functions X . The main results are concentration inequalities and
Benoît R. Kloeckner
semanticscholar   +1 more source

Perturbation Bounds for the Stationary Distributions of Markov Chains [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2012
In this paper, we are interested in investigating the perturbation bounds for the stationary distributions for discrete-time or continuous-time Markov chains on a countable state space.
Yuanyuan Liu
semanticscholar   +1 more source

Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota

open access: yesAdvanced Science, EarlyView.
This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo   +11 more
wiley   +1 more source

Analyticity of Entropy Rate of Hidden Markov Chains [PDF]

open access: yes, 2005
We prove that under mild positivity assumptions the entropy rate of a hidden Markov chain varies analytically as a function of the underlying Markov chain parameters. A general principle to determine the domain of analyticity is stated.
Han, Guangyue, Marcus, Brian
core   +4 more sources

Temporal Transcriptional Regulation of Human Neuronal Differentiation via Forward Programming

open access: yesAdvanced Science, EarlyView.
Single‐cell profiling of TF‐induced forward programming versus stepwise dual‐SMAD differentiation reveals that divergent trajectories set the pace of neurogenesis. OLIG TFs advance cell‐cycle exit via NOTCH modulation, while NEUROD2 later accelerates maturation. The study elucidates transcriptional mechanisms governing differentiation timing, providing
Lingling Zhu   +13 more
wiley   +1 more source

Information Landscape and Flux, Mutual Information Rate Decomposition and Connections to Entropy Production

open access: yesEntropy, 2017
We explored the dynamics of two interacting information systems. We show that for the Markovian marginal systems, the driving force for information dynamics is determined by both the information landscape and information flux.
Qian Zeng, Jin Wang
doaj   +1 more source

Stochastic Stabilization for Discrete-Time Markovian Jump Systems With Time-Varying Delay and Two Markov Chains Under Partly Known Transition Probabilities

open access: yesIEEE Access, 2021
This paper investigates the problem of state feedback controller design for discrete-time Markovian jump systems (MJSs) with time delay and two Markov chains under partly known transition probabilities. First, by constructing improved Lyapunov-Krasovskii
Yuan Li   +3 more
doaj   +1 more source

Local stationarity and time-inhomogeneous Markov chains [PDF]

open access: yesAnnals of Statistics, 2016
In this paper, we study a notion of local stationarity for discrete time Markov chains which is useful for applications in statistics. In the spirit of some locally stationary processes introduced in the literature, we consider triangular arrays of time ...
L. Truquet
semanticscholar   +1 more source

Explicit Compression Degradation Estimations for Low‐Sampling Single‐Pixel Imaging using Hadamard Basis

open access: yesAdvanced Science, EarlyView.
This study proposes a degradation estimation technique to explicitly describe compressive sampling for low‐sampling Hadamard single‐pixel imaging. Blur kernels in explicit degradation models are estimated by the self‐supervised learning method without labeled data and implicit priors.
Haoyu Zhang   +4 more
wiley   +1 more source

On the connections between PCTL and Dynamic Programming

open access: yes, 2009
Probabilistic Computation Tree Logic (PCTL) is a well-known modal logic which has become a standard for expressing temporal properties of finite-state Markov chains in the context of automated model checking.
Chatterjee, Debasish   +3 more
core   +1 more source

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