Results 111 to 120 of about 252,736 (238)

Analysing the Drivers of Cropland Footprint in Leading Agricultural Nations: Evidence From MMQR Approach

Geological Journal, EarlyView.
ABSTRACT Climate change represents the biggest current challenge for us and for future generations. Its impact on agriculture is undeniable, considering the food security goal. Thus, the cropland footprint has been distinguished as a comprehensive index for assessing the impact of environmental changes in agricultural areas determined by the increased ...
Ibrahim Cutcu, Magdalena Radulescu
wiley   +1 more source

Optimal Inspection and Maintenance Policy: Integrating a Continuous-Time Markov Chain into a Homing Problem

Machines
The state of a machine is modeled as a controlled continuous-time Markov chain. Moreover, the machine is being serviced at random times. The aim is to maximize the time until the machine must be repaired, while taking the maintenance costs into account ...
Mario Lefebvre, Roozbeh Yaghoubi
doaj   +1 more source

Intraluminal thrombus effect on the progression of abdominal aortic aneurysms by using a multistate continuous-time Markov chain model. [PDF]

J Int Med Res, 2020
Zhang L, Zambrano BA, Choi J, Lee W, Baek S, Lim CY.   +5 more
europepmc   +1 more source

ON SOME ASPECTS OF THE MANAGEMENT OF A STOCHASTICALLY DEVELOPING FOREST [PDF]

In this paper I focus on some important biological aspects of the forest management problem. I model a stochastically developing forest as a multidimensional, continuous-time Markov chain.
Batabyal, Amitrajeet A.
core   +1 more source

Fast MCMC sampling for Markov jump processes and extensions

, 2013
Markov jump processes (or continuous-time Markov chains) are a simple and important class of continuous-time dynamical systems. In this paper, we tackle the problem of simulating from the posterior distribution over paths in these models, given partial ...
Rao, Vinayak, Teh, Yee Whye
core  

Bayesian selection of continuous-time Markov chain evolutionary models.

Molecular biology and evolution, 2001
M. Suchard, R. E. Weiss, J. Sinsheimer
semanticscholar   +1 more source

On One Approach to Obtaining Estimates of the Rate of Convergence to the Limiting Regime of Markov Chains

Mathematics
We revisit the problem of the computation of the limiting characteristics of (in)homogeneous continuous-time Markov chains with the finite state space. In general, it can be performed only numerically.
Yacov Satin, Rostislav Razumchik, Alexander Zeifman, Ilya Usov   +3 more
doaj   +1 more source

A Two-Stage Optimization Method for Multi-Runway Departure Sequencing Based on Continuous-Time Markov Chain

Aerospace
With the rapid expansion of the aviation industry, traditional static scheduling methods have become inadequate to meet the increasingly complex demands of efficient airport operations. To enhance the operational efficiency of multi-runway airports, this
Guan Lian, Yingzi Wu, Weizhen Luo, Wenyong Li, Yaping Zhang, Xiaoyue Zhang   +5 more
doaj   +1 more source

Multi-state SVIRD Model with Continuous-time Markov Chain Assumption on the Spread of Infectious Diseases

Austrian Journal of Statistics
The spread of infectious diseases is generally described using mathematical models. This paper discusses the spread of infectious diseases using a multi-state SVIRD model, assuming that a continuous-time Markov chain (CTMC) occurs in a closed population
Faihatuz Zuhairoh, Dedi Rosadi, Adhitya Ronnie Effendie   +2 more
doaj   +1 more source

A Multi Objective Fibonacci Search Based Algorithm for Resource Allocation in PERT Networks [PDF]

Journal of Optimization in Industrial Engineering, 2010
The problem we investigate deals with the optimal assignment of resources to the activities of a stochastic project network. We seek to minimize the expected cost of the project include sum of resource utilization costs and lateness costs. We assume that
Behrouz Afshar Nadjafi, Salman Kolyaei
doaj