Results 51 to 60 of about 1,619 (228)

Resource System with Losses in a Random Environment

open access: yesMathematics, 2021
The article deals with queueing systems with random resource requirements modeled as bivariate Markov jump processes. One of the process components describes the service system with limited resources.
Valeriy Naumov, Konstantin Samouylov
doaj   +1 more source

Progressive Colour Equalisation and Detail Refinement for Underwater Image Enhancement

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Underwater image enhancement remains a critical challenge in computational vision due to complex distortions caused by wavelength‐dependent light absorption and scattering. This paper introduces CEDFNet, a novel two‐stage framework that leverages advanced computational intelligence techniques for robust and high‐fidelity underwater image ...
Songbai Liu, Jiacheng Huang
wiley   +1 more source

Museomics Deciphers the Phylogeographic Differentiation and Conservation Status of a Montane Pheasant

open access: yesIntegrative Zoology, EarlyView.
Museum specimens provide a rich source of historical DNA, enabling insights into phylogenetic relationships and demographic history of the endangered Koklass Pheasant. Our findings uncovered a previously unrecognized population in Guizhou province and highlighted elevated extinction risk in populations from Anhui province and Southern China, informing ...
Zhiyong Jiang   +9 more
wiley   +1 more source

Infinite-server queueing tandem with Markovian arrival process and service depending on its state

open access: yes, 2023
We consider the infinite-server queueing tandem with the Markovian arrival process. The service time of messages at the first stage and the probability of their transition to the second stage are determined by the type of message that corresponds to the ...
Maria Shklennik   +5 more
core   +1 more source

An intuitive method to calculate the utilization distribution of an animal from step‐selection analysis

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Step‐selection analysis (SSA) is a popular tool for estimating resource/habitat selection conditional on the local availability of conditions as determined by an animal's movement capacity. These models can be subsequently used to parameterize a movement model; however, most SSAs focus instead merely on interpreting the direction and magnitude
Natasha Ellison‐Neary   +4 more
wiley   +1 more source

A Queuing Model for Mixed Traffic Flows on Highways considering Fluctuations in Traffic Demand

open access: yesJournal of Advanced Transportation, 2022
Modelling the mixed traffic flows of autonomous vehicles (AVs) and human-driven vehicles (HVs) on highways is challenging. Randomness, fluctuations, and congestion exist in the mixed traffic flows.
Juanxiu Zhu, Lu Hu, Zikang Chen, Han Xie
doaj   +1 more source

Perturbation Theory for the Asymptotic Decay Rates in the Queues with Markovian Arrival Process and/or Markovian Service Process – Correction [PDF]

open access: yesQueueing Systems, 2001
Three kinds of queues with Markovian arrival process and/or Markovian service process, are considered in this paper. In great generality, their basic steady-state distributions have asymptotically exponential tails. We investigate the sensitivity of these asymptotic decay rates to the small entrywise perturbations in the parameter matrices of the ...
Attahiru Sule Alfa   +2 more
openaire   +1 more source

Student profiles of change in formative assessment behaviour: Replication and evaluation for grade prediction

open access: yesBritish Journal of Educational Technology, EarlyView.
Abstract As students learn and practice new skills in university courses, their behaviour can change in response to competing demands and increasing content complexity. However, most metrics used to evaluate study behaviour focus on the number or sequence of activities rather than on the change of behaviour.
Oleksandra Poquet   +2 more
wiley   +1 more source

A Markovian arrival stream approach to stochastic gene expression in cells

open access: yes, 2023
We analyse a generalisation of the stochastic gene expression model studied recently in Fromion et al. (SIAM J Appl Math 73:195-211, 2013) and Robert (Probab Surv 16:277-332, 2019) that keeps track of the production of both mRNA and protein molecules ...
Brian Fralix   +5 more
core   +1 more source

Retrial BMAP/PH/N Queueing System with a Threshold-Dependent Inter-Retrial Time Distribution

open access: yesMathematics, 2022
In this paper, we study a multi-server queueing system with retrials and an infinite orbit. The arrival of primary customers is described by a batch Markovian arrival process (BMAP), and the service times have a phase-type (PH) distribution.
Valentina I. Klimenok   +3 more
doaj   +1 more source

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