Results 111 to 120 of about 60,582 (310)

Theory and inference for a Markov switching GARCH model [PDF]

open access: yes
We develop a Markov-switching GARCH model (MS-GARCH) wherein the conditional mean and variance switch in time from one GARCH process to another. The switching is governed by a hidden Markov chain. We provide sufficient conditions for geometric ergodicity
Luc, BAUWENS   +2 more
core   +6 more sources

Mixing Times of Markov Chains: from Coupling to Paths [PDF]

open access: yes
openA well-known result in the theory of Markov chains, the Convergence Theorem, states that if we assume the chain to be aperiodic and irreducible, then its distribution converges to equilibrium.
PIGNATELLI, FEDERICO MAURO
core  

Building phenotypic character matrices for phylogenetic inference: exploration of 35 years of practice

open access: yesBiological Reviews, EarlyView.
ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Melanie J. Hopkins   +9 more
wiley   +1 more source

Products of stochastic matrices and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
This paper deals with aspects of the limit behaviour of products of nonidentical finite or countable stochastic matrices (Pn). Applications are given to nonhomogeneous Markov models as positive chains, some classes of finite chains considered by Doeblin ...
Harry Cohn
doaj   +1 more source

Modelling the profitability of credit cards by Markov decision processes

open access: yes, 2009
This paper derives a model for the profitability of credit cards, which allow lenders to find the optimal dynamic credit limit policy. The model is a Markov decision process, where the states of the system are based on the borrower's behavioural score ...
Thomas, Lyn C., So, Mee Chi
core  

On the importance of including both sexes in animal studies – insights from home‐cage monitoring

open access: yesBiological Reviews, EarlyView.
ABSTRACT A review of behavioural studies using home‐cage monitoring (HCM) systems revealed that over 61% of studies used only male subjects, with only 24% including both sexes, despite evidence of substantial behavioural differences between male and female animals. This bias could influence the outcomes of biomedical research.
Maša Čater   +12 more
wiley   +1 more source

A Taxonomy of Predictive Maintenance as a Basis for Supra‐Regional Sustainability Monitoring—Literature Review

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The concept of predictive maintenance in advanced manufacturing systems is crucial from the point of view of resource efficiency in the era of high competitiveness forced by energy transformation in the digital economy. Against the backdrop of sustainability and the opportunities a data cooperative offers, the combination of predictive ...
Christian Schachtner   +6 more
wiley   +1 more source

Convergence, Rank Reduction and Bounds for the Stationary Analysis of Markov Chains

open access: yes, 2004
We introduce a rank reduction method for computing stationary distributions of Markov chains for which low-rank iteration matrices can be formed. We first prove that, for an irreducible Markov chain, a necessary and sufficient condition for convergence ...
Peng, Bin
core  

07461 Abstracts Collection – Numerical Methods for Structured Markov Chains

open access: yes, 2008
From 11.11. to 14.11.07, the Dagstuhl Seminar 07461 ``Numerical Methods for Structured Markov Chains'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl.
Bini, Dario A.   +4 more
core   +1 more source

Uniqueness of equilibrium measures for countable Markov shifts and multidimensional piecewise expanding maps [PDF]

open access: yes, 2003
We prove that potentials with summable variations on topologically transitive countable Markov shifts have at most one equilibrium measure.
Buzzi, Jérôme, Sarig, Omri
core   +1 more source

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