Showing 101 - 120 results of 145 for search '"stochastic processes"', query time: 0.07s Refine Results
  1. 101

    Trivariate Stochastic Weather Model for Predicting Maize Yield by Patrick Chidzalo, Phillip O. Ngare, Joseph K. Mung’atu

    Published 2022-01-01
    “…Hence, there exists a need for a stochastic process for predicting maize yield with higher precision. …”
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    Article
  2. 102

    Determining the First Probability Density Function of Linear Random Initial Value Problems by the Random Variable Transformation (RVT) Technique: A Comprehensive Study by M.-C. Casabán, J.-C. Cortés, J.-V. Romero, M.-D. Roselló

    Published 2014-01-01
    “…Solving a random differential equation means computing not only its solution stochastic process but also its main statistical functions such as the expectation and standard deviation. …”
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    Article
  3. 103

    Estimating Remaining Useful Life for Degrading Systems with Large Fluctuations by Dang-Bo Du, Jian-Xun Zhang, Zhi-Jie Zhou, Xiao-Sheng Si, Chang-Hua Hu

    Published 2018-01-01
    “…Firstly the degradation data are decomposed into trend items and random items, which are defined as a stochastic process. Then the standard deviation of the stochastic process is defined as another performance variable because standard deviation reflects the system performance. …”
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    Article
  4. 104

    Application of Discrete-time semi-Markov Model to the Stochastic forecasting of Capital assests as stock. by Nafiu, Lukman Abiodun, Patrick, Weke, Alieu Jallow, Mamadou, Carolyne, Ogutu

    Published 2022
    “…Semi Markov is a stochastic process that generalizes both the Markov chain and the Markov renewal processes. it is well known that the performances of the stock market or factors that move stock prices are technical factors, fundamental factors and market sentiments.…”
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    Article
  5. 105

    Operator Inequalities of Morrey Spaces Associated with Karamata Regular Variation by Jiajia Wang, Zunwei Fu, Shaoguang Shi, Ling Mi

    Published 2017-01-01
    “…Karamata regular variation is a basic tool in stochastic process and the boundary blow-up problems for partial differential equations (PDEs). …”
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  6. 106

    Analytic-Numerical Solution of Random Boundary Value Heat Problems in a Semi-Infinite Bar by M.-C. Casabán, J.-C. Cortés, B. García-Mora, L. Jódar

    Published 2013-01-01
    “…Using previous results about random ordinary differential equations, a closed form solution stochastic process is firstly obtained. Then, expectation and variance are computed. …”
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    Article
  7. 107

    Option Pricing Based on Modified Advection-Dispersion Equation: Stochastic Representation and Applications by Longjin Lv, Luna Wang

    Published 2020-01-01
    “…In this paper, we first investigate the stochastic representation of the modified advection-dispersion equation, which is proved to be a subordinated stochastic process. Taking advantage of this result, we get the analytical solution and mean square displacement for the equation. …”
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  8. 108

    Coverage repair strategies for wireless sensor networks based on muti-mobile nodes and genetic algorithm by Miao YE, Yu-ping WANG, Jing-xuan WEI

    Published 2014-12-01
    “…A repairing strategy for the coverage of the sensor network based on multi-mobile nodes and path planning is designed.Such mechanism can ultimately repair common nodes in a timely fashion via energy consumption analysis of the nodes by using genetic algorithm to calculate the reasonable moving path of the mobile nodes,which can avoid cov-erage holes caused by the death of sensor nodes at its best.The global convergence the designed algorithm is proved by stochastic process.Simulation experiments have proven the effectiveness of the designed mechanism and the relevant solution algorithm.…”
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    Article
  9. 109

    Evolutionary dynamics of prey-predator systems with Holling type II functional response by Jian Zu, Wendi Wang, Bo Zu

    Published 2007-01-01
    “…The evolutionarydynamics is constructed from a stochastic process of mutation andselection. We investigate the ecological and evolutionary conditionsthat allow for continuously stable strategy and evolutionarybranching. …”
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  10. 110

    A First Application of the Backward Technique in Social Sciences: Exploring Demographic Noise in a Model with Three Personality Types by Roberto Macrelli, Margherita Carletti, Vincenzo Fano

    Published 2024-12-01
    “…Applying the backward technique to this model built on ordinary differential equations, we demonstrate how demographic noise can act as a switching factor, i.e., moving backward from the deterministic continuous model to the discrete stochastic process using the same parameter values, a given equilibrium switches to a different one. …”
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    Article
  11. 111

    The Long Time Behavior of Equilibrium Status of a Predator-Prey System with Delayed Fear in Deterministic and Stochastic Scenarios by Weili Kong, Yuanfu Shao

    Published 2022-01-01
    “…Next, by perturbing the mortality rates of prey species and predator species, we stretch the deterministic system to the stochastic scenario and investigate the existence of stochastic process and the global asymptotical stability of the equilibrium status. …”
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  12. 112

    Effects of elongation delay in transcription dynamics by Xuan Zhang, Huiqin Jin, Zhuoqin Yang, Jinzhi Lei

    Published 2014-08-01
    “…This paper studies the transcription dynamics that involved the elongation delay and effects of cell division and DNA replication. The stochastic process of gene expression is modeled with delay chemical master equation with periodic coefficients, and is studied numerically through the stochastic simulation algorithm with delay. …”
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  13. 113

    2019-nCoV Transmission in Hubei Province, China: Stochastic and Deterministic Analyses by Zhiming Li, Zhidong Teng, Changxing Ma

    Published 2020-01-01
    “…Under R0>1, quasi-stationary distribution of the stochastic process is approximated by Gaussian diffusion. …”
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    Article
  14. 114

    Measuring Interest Rate Risk with Embedded Option Using HPL-MC Method in Fuzzy and Stochastic Environment by Enlin Tang, Wei Du

    Published 2020-01-01
    “…Under the premise that the fluctuation of interest rate follows fuzzy stochastic process, based on the option characteristics of financial instruments with embedded option, this paper takes effective duration and effective convexity as tools to measure interest rate risk when embedded options exist, tries to choose CIR extended model as term structure model, and uses the Monte Carlo method for hybrid low deviation sequences (HPL-MC) to analyze the prepayment characteristics of MBS, a representative financial instrument with embedded options, when interest rates fluctuate; on this basis, the effectiveness of effective duration management of interest rate risk is demonstrated with asset liability management cases of commercial banks.…”
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  15. 115

    Communication performance analysis of wireless sensor network for railway environmental monitoring by Ruifeng CHEN, Ming NI, Chunjie XU, Hao HU

    Published 2019-05-01
    “…Wireless sensor network (WSN) deployed along the railway can be commonly applied to environmental monitoring.In order to lengthen the lifetime of WSN,it is essential to introduce the node sleeping mechanism.Therefore,firstly the stochastic process theory was adopted and an analytical framework was proposed to study the communication performance of WSN in railway scenarios based on the node sleeping mechanism.Furthermore,the impacts of different system factors on the reception performance of WSN were analyzed under railway scenarios,and then the relation between the optimal ratio of active nodes and other system factors could be obtained.A simulation platform was established to verify the reception performance of WSN in safety areas and hazards-prone sections respectively.Finally,practical case was presented to verify the deployment scheme based on node sleeping mechanism.The analytical results could provide the guidelines for practical deployment of WSN under railway scenarios.…”
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  16. 116

    Stochastic Control of Inertial Sea Wave Energy Converter by Mattia Raffero, Michele Martini, Biagio Passione, Giuliana Mattiazzo, Ermanno Giorcelli, Giovanni Bracco

    Published 2015-01-01
    “…The response of the WEC (wave energy converter) is driven by the sea-surface elevation, which is modeled by a stationary and homogeneous zero mean Gaussian stochastic process. System equations are linearized thus simplifying the numerical model of the device. …”
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  17. 117

    Evolution of Bounded Confidence Opinion in Social Networks by Hui Xie, Guangjian Li, Yongjie Yan, Sihui Shu

    Published 2017-01-01
    “…We investigate opinion dynamics as a stochastic process in social networks. We introduce the stubborn agent in order to determine the impact of network structure on the emergence of consensus. …”
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  18. 118

    Effect of spectral cross-correlation on multiaxial fatigue damage: simulations using the critical plane approach by Andrea Carpinteri, Andrea Spagnoli, Sabrina Vantadori

    Published 2017-06-01
    “…Each of such signals is described by an ergodic, stationary and Gaussian stochastic process, with zero mean value. The spectrum of each signal is assumed to be represented by a PSD function with rectangular shape. …”
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  19. 119

    Optimal time to intervene: The case of measles child immunization by Zuzana Chladná

    Published 2018-01-01
    “…We represent immunization rate of newborns as a stochastic process and intervention as a one-period jump of this process. …”
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    Article
  20. 120

    Measured Rare Voltage Sags and Clusters of Sags: Prediction Models Driven by the Intermittence Indices by G. M. Casolino, M. de Santis, L. Di Stasio, C. Noce, P. Varilone, P. Verde

    Published 2024-01-01
    “…The clusters of sags represent a stochastic process due to their time dependence; the rare satisfy the requirements for a Poisson distribution process. …”
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    Article