Results 1 to 10 of about 1,139,330 (298)

A matrix geometric solution of a multi-server queue with waiting servers and customers’ impatience under variant working vacation and vacation interruption [PDF]

open access: yesYugoslav Journal of Operations Research, 2023
This paper deals with a M/M/c queueing system with waiting servers, balking, reneging, and K-variant working vacations subjected to Bernoulli schedule vacation interruption.
Ziad Ines   +4 more
doaj   +1 more source

Local linear modelling of the conditional distribution function for functional ergodic data

open access: yesMathematical Modelling and Analysis, 2022
The focus of functional data analysis has been mostly on independent functional observations. It is therefore hoped that the present contribution will provide an informative account of a useful approach that merges the ideas of the ergodic theory and ...
Somia Ayad   +3 more
doaj   +1 more source

Local linear approach: Conditional density estimate for functional and censored data

open access: yesDemonstratio Mathematica, 2022
Let YY be a random real response, which is subject to right censoring by another random variable CC. In this paper, we study the nonparametric local linear estimation of the conditional density of a scalar response variable and when the covariable takes ...
Benkhaled Abdelkader, Madani Fethi
doaj   +1 more source

Challenges of integrated variance estimation in emerging stock markets [PDF]

open access: yesZbornik radova Ekonomskog fakulteta u Rijeci : časopis za ekonomsku teoriju i praksu, 2019
Estimating integrated variance, using high frequency data, requires modelling experience and data crunching skills. Although intraday returns have attracted much attention in recent years, handling these data is challenging because of their ...
Josip Arnerić, Mario Matković
doaj   +1 more source

A Stochastic Harmonic Oscillator Temperature Model for the Valuation of Weather Derivatives

open access: yesMathematics, 2021
Stochastic processes are employed in this paper to capture the evolution of daily mean temperatures, with the goal of pricing temperature-based weather options.
Alessio Giorgini   +2 more
doaj   +1 more source

On impatience in M/M/1/N/DWV queue with vacation interruption

open access: yesCroatian Operational Research Review, 2020
In this paper, we establish a cost optimization analysis for an M/M/1/N queuing system with differentiated working vacations, Bernoulli schedule vacation interruption, balking and reneging. Once the system is empty, the server waits a random amount of
Amina Angelika Bouchentouf   +2 more
doaj   +1 more source

Modeling and Analysis of BDS-2 and BDS-3 Combined Precise Time and Frequency Transfer Considering Stochastic Models of Inter-System Bias

open access: yesRemote Sensing, 2021
BeiDou global navigation satellite system (BDS) began to provide positioning, navigation, and timing (PNT) services to global users officially on 31 July, 2020. BDS constellations consist of regional (BDS-2) and global navigation satellites (BDS-3).
Guoqiang Jiao   +6 more
doaj   +1 more source

Stochastic neural network models for gene regulatory networks [PDF]

open access: yes, 2003
Recent advances in gene-expression profiling technologies provide large amounts of gene expression data. This raises the possibility for a functional understanding of genome dynamics by means of mathematical modelling.
Burrage, K., Tian, T.
core   +2 more sources

Optimum cost analysis for an Geo/Geo/c/N feedback queue under synchronous working vacations and impatient customers

open access: yesCroatian Operational Research Review, 2019
This paper concerns the cost optimisation analysis of a discrete-time finite-capacity multiserver queueing system with Bernoulli feedback, synchronous multiple and single working vacations, balking, and reneging during both busy and working vacation ...
Lahcene Yahiaoui   +2 more
doaj   +1 more source

Asymmetric Dipole Trends in Geodynamo Models and the Paleomagnetic Field

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Temporal trends in the paleomagnetic dipole moment exhibit the property of positive skewness. On average, positive trends are larger and occur less frequently than negative trends over timescales of several tens of kyr.
B. A. Buffett
doaj   +1 more source

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