Showing 21 - 40 results of 421 for search 'Probability density evaluation', query time: 0.14s Refine Results
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    Modified generalized Chen distribution, estimation and application using econometrics data by Owens Ogheneochuko Akpojaro, Charles Okechukwu Aronu

    Published 2024-12-01
    “…The objectives of the study was to derive the probability density function (PDF) and cumulative density function (CDF) of the MGC distribution, determine its statistical properties and reliability characteristics, compare these properties and characteristics to existing distributions, and empirically evaluate its performance. …”
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  3. 23

    The Modified Weibull–Fréchet Mixture distribution for enhanced econometric data modelling by I. O. Akalagboro, C. O. Aronu

    Published 2025-12-01
    “…The objectives of the study include to: derive the probability density function (PDF) and cumulative density function (CDF) of the MWFM distribution to establish its mathematical foundation; determine the statistical properties of the MWFM distribution, including moments, skewness, and kurtosis; ascertain the reliability characteristics of the MWFM distribution, providing insights into its performance in modelling reliability and survival data; and compare, on a theoretical basis, the statistical properties of the MWFM distribution with existing distributions to highlight its unique features. …”
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  4. 24

    How low-abundance amphibians shape functional diversity across tropical forest succession stages? by Fabio Zabala-Forero, Angela M. Cortés-Gómez, Nicolás Urbina-Cardona

    Published 2025-02-01
    “…We applied trait probability density (TPD) analysis at the assemblage level and functional rarity indices (Scarcity and Functional Distinctiveness) at the species level. …”
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    Spatial analysis of prehospital emergency medical services accessibility: a comparative evaluation of the GAUSS-probability two-step floating catchment area model in Handan City by Feng Tian, Feng Tian, Feng Tian, Saicong Lu, Saicong Lu, Saicong Lu, Zhenjie Yang, Tingting Zhao, Tingting Zhao, Tingting Zhao, Penghui Li, Penghui Li, Penghui Li, Haifang Zhang

    Published 2025-03-01
    “…In this study, the GAUSS-Probability Two-step Floating Catchment Area (GP2SFCA) method was applied to evaluate the spatial distribution of access to prehospital EMS in Handan City and to assess accessibility differences by comparing it with various models.ResultsThe results demonstrated that the GP2SFCA model achieved significantly improved performance, with an average correlation coefficient of 0.7017, indicating a notably higher predictive accuracy. …”
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  7. 27

    Stochastic modeling and first-passage-time analysis of oncological time metrics with dynamic tumor barriers by Olusegun Michael Otunuga

    Published 2025-04-01
    “…For certain verified stochastic models describing the volume of a tumor, a moving barrier for the tumor size in which an explicit solution of an FPT probability density function (PDF) exists for the first time the tumor size reaches the moving barrier is obtained in this work. …”
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  8. 28

    The Effect of Nodal Deviation on the Reliability Performance of the Optimized Free-Form Single-Layer Reticulated Shell by Dong Li, Baoshi Jiang

    Published 2025-05-01
    “…Shape optimization is carried out with the objective function of minimizing the strain energy under the uniform vertical load, and the influence of the nodal deviation on the reliability performance of the optimized structure is performed by analyzing changes in the structural response’s probability density function (PDF). The elastic modulus, yield strength, and nodal deviation of the material were selected as the basic random variables, and the PDF of the structural response was calculated using the probability density evolution method. …”
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  9. 29

    A Novel Hybrid Item-Based Similarity Method to Mitigate the Effects of Data Sparsity in Multi-Criteria Collaborative Filtering by Burcu Demirelli Okkalioglu

    Published 2025-01-01
    “…Additionally, it incorporates <inline-formula> <tex-math notation="LaTeX">$\alpha $ </tex-math></inline-formula>-divergence as a global similarity measure, leveraging the probability density distribution of ratings to compute similarities even when user overlap is minimal or absent. …”
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    Could PTH/Ca Ratio Serve as a New Marker for Evaluating Bone Metabolism in Hemophilia Patients? by Tuba Ersal, Fazıl Çağrı Hunutlu, Vildan Gürsoy, Ezel Elgün, Şeyma Yavuz, İpek Dal Akkuş, İlayda Baş, Vildan Özkocaman, Fahir Özkalemkaş

    Published 2025-03-01
    “…Patients with hemophilia are at risk of low bone mineral density (BMD). This study aimed to evaluate the prevalence of low BMD, associated risk factors, and raise awareness regarding its significance in hemophilia patients. …”
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    Evaluation of Acoustic Recording Devices to Survey Northern Bobwhite Populations by Nathan G. Wilhite, Paige E. Howell, James A. Martin

    Published 2020-03-01
    “…We believe ARDs can be used to evaluate northern bobwhite occupancy at fine scales and may potentially be useful in estimating autumn densities for setting harvest regulations. …”
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    OPTIMAL ESTIMATION OF RANDOM PROCESSES ON THE CRITERION OF MAXIMUM A POSTERIORI PROBABILITY by A. A. Lobaty, Y. F. Yacina, N. N. Arefiev

    Published 2016-03-01
    “…Unlike common approaches based on consideration as a criterion for optimization of the minimum mean square error of estimation, in this case, the optimization criterion is considered the maximum a posteriori probability density of the process being evaluated.The a priori probability density estimated Gaussian process originally considered a differentiable function that allows us to expand it in a Taylor series without use of intermediate transformations characteristic functions and harmonic decomposition. …”
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    WIND ENERGY EVALUATION AND TURBINE IDENTIFICATION FOR POWER GENERATION IN SOME SELECTED AREAS IN NIGERIA by MUSEDIQ ADEDOYIN SULAIMAN, IGNATIUS KEMA OKAKWU, AKINTUNDE SAMSON ALAYANDE, OLAKUNLE ELIJAH OLABODE, AUGUSTUS EHIREMEN IBHAZE

    Published 2020-06-01
    “…The analysis of the data is carried out using a two-parameter Weibull Distribution Function (WDF). The most probable wind-speed and the wind-speed carrying the maximum energy were also evaluated. …”
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    Complementary Characteristics Between Hydro-Solar-Wind Power Factors in the Upper Yellow River Region During 1979~2018 by Jiongwei Cao, Xiang Li, Huimin Zuo, Jingyang Wang, Lizhen Wang

    Published 2025-03-01
    “…Additionally, the probability density distributions of individual and pairs of power factors are examined at the Longyangxia Clean Energy Base in Qinghai Province. …”
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    Line Sampling with Probability Proportional to The Geometrical Average Area Per Tree in The Stand by Sylvio Péllico Netto, Alexandre Behling, Ataides Marinheski Filho, Ângelo Augusto Ebling, Claiton Nardini

    Published 2025-03-01
    “…Abstract The study proposes a sampling method, termed the probability proportional to the average geometric area of occupation, method in which a set of trees along a row is selected as the sampling unit with a probability proportional to the geometrical average area per tree - PPGA. …”
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    Evaluation of the optimal values of cholesterol of high density lipoproteins in a cohort of men aged 40-59 with myocardial infarction (according to 30-year monitoring of the status... by V. V. Belov, A. A. Menshchikov

    Published 2019-03-01
    “…The functions of 30-year survival in the cohort of middle-aged men who underwent MI, allow to determine the probability of survival of patients with this level of HDL-C to certain time.…”
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    Metabolic, Inflammatory and Imaging Biomarkers in Evaluation of Coronary Arteries Anatomical Stenosis in Patients with Stable Coronary Artery Disease by O. A. Koshelskaya, T. E. Suslova, I. V. Kologrivova, N. Y. Margolis, O. A. Zhuravleva, O. A. Kharitonova, I. V. Vinnitskaya

    Published 2020-03-01
    “…It allowed to determine probability P for CA stenosis of 70% or more for each patient using formula Р, where L=0.89-1.09×gender+ 0.51×triglycerides–0.28×HDL+0.24×hsCRP (HDL – high density lipoproteins). …”
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