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Perturbation theory for Markov chains

, 2022
reservedIl lavoro di tesi consiste nella ricerca di maggioranti della "distanza" tra le distribuzioni di due catene di Markov, ipotizzando che una, l'originale, sia perturbata nell'altra.
PALMIOTTO, MATTIA
core  

Using Markov Chains in Medical Field [PDF]

المجلة العراقية للعلوم الاحصائية, 2018
تم فی ىذا البحث د ا رسة السمسمة الزمنیة لعدد الإصابات بمرض ذات الرئة کمتسمسمة مارکوف ، وذلک بوضع افت ا رضات عمى عدد الإصابات لصیاغة المسألة وفق نموذج متسمسمة مارکوف بالاعتماد عمى عدد الحالات التی تمثل الظاىر. وبعد إیجاد الصفات الإحصائیة لیذه السمسمة تبین
Abd Al-Gafoor G. Al-Obeady, Ammar Y. Suleman   +1 more
doaj   +1 more source

Controlled Markov Chains

The Annals of Probability, 1975
We propose a control problem in which we minimize the expected hitting time of a fixed state in an arbitrary Markov chains with countable state space. A Markovian optimal strategy exists in all cases, and the value of this strategy is the unique solution of a nonlinear equation involving the transition function of the Markov chain.
Kesten, Harry, Spitzer, Frank
openaire   +3 more sources

Approximating Markov chains. [PDF]

Proceedings of the National Academy of Sciences, 1992
A common framework of finite state approximating Markov chains is developed for discrete time deterministic and stochastic processes. Two types of approximating chains are introduced: (i) those based on stationary conditional probabilities (time averaging) and (ii) transient, based on the percentage of the Lebesgue measure of the image of cells ...
openaire   +2 more sources

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane, Valentina Giunchiglia, Michael C. B. David, Magdalena A. Kolanko, William R. Trender, Peter J. Hellyer, Harmeena Kaur, David J. Sharp, Christopher Carswell, Paresh A. Malhotra, Adam Hampshire   +10 more
wiley   +1 more source

An estimate for an expectation of the simultaneous renewal for time-inhomogeneous Markov chains

Modern Stochastics: Theory and Applications, 2016
In this paper, we consider two time-inhomogeneous Markov chains ${X_{t}^{(l)}}$, $l\in \{1,2\}$, with discrete time on a general state space. We assume the existence of some renewal set C and investigate the time of simultaneous renewal, that is, the ...
Vitaliy Golomoziy
doaj   +1 more source

Markov and Semi-Markov Chains, Processes, Systems, and Emerging Related Fields

Mathematics, 2021
Probability resembles the ancient Roman God Janus since, like Janus, probability also has a face with two different sides, which correspond to the metaphorical gateways and transitions between the past and the future [...]
P.-C.G. Vassiliou, Andreas C. Georgiou
doaj   +1 more source

The importance Markov chain

Stochastic Processes and their Applications
The Importance Markov chain is a novel algorithm bridging the gap between rejection sampling and importance sampling, moving from one to the other through a tuning parameter. Based on a modified sample of an instrumental Markov chain targeting an instrumental distribution (typically via a MCMC kernel), the Importance Markov chain produces an extended ...
Andral, Charly, Douc, Randal, Marival, Hugo, Robert, Christian   +3 more
openaire   +4 more sources

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

On automorphisms of Markov chains [PDF]

Transactions of the American Mathematical Society, 1992
We prove several theorems about automorphisms of Markov chains, using the weight-per-symbol polytope.
Krieger, Wolfgang, Marcus, Brian, Tuncel, Selim   +2 more
openaire   +1 more source