Results 1 to 10 of about 494,232 (220)

Monte Carlo transition probabilities [PDF]

open access: yesAstronomy & Astrophysics, 2001
Transition probabilities governing the interaction of energy packets and matter are derived that allow Monte Carlo NLTE transfer codes to be constructed without simplifying the treatment of line formation.
Abbott   +14 more
core   +7 more sources

Transition Probabilities for Forbidden Lines [PDF]

open access: bronzeJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1964
A compilation is given of transition probabilities of forbidden lines which occur in the spectra of gaseous nebulae.
R. H. Garstang
openaire   +3 more sources

Discrete-time neural Markov models [PDF]

open access: yesBMC Medical Research Methodology
Background Markov models can be used to describe the movement of individuals between states. In medicine, Markov models are used to describe, for example, disease progression and the effects of interventions on such progression. The models can further be
Jesper Sundell   +2 more
doaj   +2 more sources

Comparison of the flexible parametric survival model and Cox model in estimating Markov transition probabilities using real-world data. [PDF]

open access: yesPLoS ONE, 2018
BACKGROUND AND OBJECTIVE:Markov micro-simulation models are being increasingly used in health economic evaluations. An important feature of the Markov micro-simulation model is its ability to consider transition probabilities of heterogeneous subgroups ...
Xudong Du   +8 more
doaj   +2 more sources

Current recommendations on the estimation of transition probabilities in Markov cohort models for use in health care decision-making: a targeted literature review [PDF]

open access: yesClinicoEconomics and Outcomes Research, 2017
Elena Olariu,1 Kevin K Cadwell,1 Elizabeth Hancock,1 David Trueman,1 Helene Chevrou-Severac2 1PHMR Ltd, London, UK; 2Takeda Pharmaceuticals International AG, Zurich, Switzerland Objective: Although Markov cohort models represent one of the most common ...
Olariu E   +4 more
doaj   +2 more sources

Empirical Transition Matrix of Multi-State Models: The etm Package [PDF]

open access: yesJournal of Statistical Software, 2011
Multi-State models provide a relevant framework for modelling complex event histories. Quantities of interest are the transition probabilities that can be estimated by the empirical transition matrix, that is also referred to as the Aalen-Johansen ...
Arthur Allignol   +2 more
doaj   +1 more source

A Note on Hidden Markov Models with Application to Criminal Intelligence

open access: yesJournal of Applied Sciences and Environmental Management, 2023
Hidden Markov Models (HMMs) which fall under the class of latent variable models have received widespread attention in many fields of applications. HMMs were initially developed and applied within the context of speech recognition.
P. Osatohanmwen   +6 more
doaj   +1 more source

Optimal investment with time-varying transition probabilities for regime switching [PDF]

open access: yesSeonmul yeongu, 2021
– This study aims to generalize the following result of McDonald and Siegel (1986) on optimal investment: it is optimal for an investor to invest when project cash flows exceed a certain threshold.
Hyo-Chan Lee   +2 more
doaj   +1 more source

Reachable set estimation for discrete-time Markovian jump neural networks with unified uncertain transition probability

open access: yesJournal of Automation and Intelligence, 2023
This paper focuses on the reachable set estimation for Markovian jump neural networks with time delay. By allowing uncertainty in the transition probabilities, a framework unifies and enhances the generality and realism of these systems. To fully exploit
Yufeng Tian, Wengang Ao, Peng Shi
doaj   +1 more source

Benchmark PhotoIonization Cross-Sections of Neutral Scandium from the Ground and Excited States

open access: yesAtoms, 2021
The B-spline R-matrix method has been used to investigate cross-sections for photoionization of neutral scandium from the ground and excited states in the energy region from the 3d and 4s valence electron ionization thresholds to 25 eV. The initial bound
Swaraj S. Tayal, Oleg Zatsarinny
doaj   +1 more source

Home - About - Disclaimer - Privacy