Results 81 to 90 of about 8,329 (301)
Odessa Astronomical Publications, 2017 The methods for determination of the characteristics of the extrema are discussed with an application to irregularly spaced data, which are characteristic for photometrical observations of variable stars.
K. D. Andrych +2 more
doaj +1 more source
Stability Analysis of Some Fractional Differential Equations by Special type of Spline Function
Journal of Zankoy Sulaimani - Part A, 2017 One fractional spline interpolation is presented in this paper for the solution fractional initial value problems that is with spline interpolation as a new class depended on class splines as a method to approximate the exact solution of such problem. Error bounds were discussed as the presented spline function.
Faraidun HamaSalh, Amina Ali
openaire +1 more source
Local Linear Forecasts Using Cubic Smoothing Splines [PDF]
We show how cubic smoothing splines fitted to univariate time series data can be used to obtain local linear forecasts. Our approach is based on a stochastic state space model which allows the use of a likelihood approach for estimating the smoothing ...
Baki Billah +3 more
core
Generalized geometric cubic splines [PDF]
, 1996 A constructive approach has been adopted to build interpolatory and freeform cubic spline curves with a more general continuity than -continuity. This method provides not only a large variety of very interesting shape controls like biased, point and ...
Sarfraz, M.
core
Advanced Intelligent Systems, EarlyView.Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal +6 more
wiley +1 more source
Segmented Regression Based on Cut-off Polynomials [PDF]
Statistika: Statistics and Economy Journal, 2016 In Statistika: Statistics and Economy Journal No. 4/2015 (pp. 39–58), author’s paper Segmented Regression Based on B-splines with Solved Examples was published.
Miloš Kaňka
doaj
Dynamic Programming as a Method of Spline Approximation in the CAD Systems of Linear Constructions
Российский технологический журнал, 2019 Under study is a problem of the line structure routing of roads, railways and other linear constructions. Designing a trace plan and longitudinal profile are considered as non-linear programming tasks.
D. A. Karpov, V. I. Struchenkov
doaj +1 more source
Journal of Neuroinflammation, 2020 Background Dickkopf-3 (Dkk-3) is implicated in the progression of atherosclerosis. This study aimed to investigate the association between serum Dkk-3 and the prognosis of ischemic stroke.
Zhengbao Zhu +12 more
doaj +1 more source
Locally optimal knots and tension parameters for exponential splines
, 2005 Tension can be applied to cubic splines in order to avoid undesired spurious oscillations. This leads to the well-known (exponential) spline in tension.
Riedel, Karl O., Karl O. Riedel
core +1 more source
Accounting for animal health in efficiency analysis: An application to Swedish dairy farms
American Journal of Agricultural Economics, EarlyView.Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang +3 more
wiley +1 more source