Search Results - variable weight function

A new quantitative method for risk assessment of water inrush in karst tunnels based on variable weight function and improved cloud model by Lin, Chunjin, Zhang, Meng, Zhou, Zongqing, Li, Liping, Shi, Shaoshuai, Chen, Yuxue, Dai, Wenjie

“… We integrates the variable weight theory and cloud model theory to construct the VW&ICM calculation model to evaluate the risk of construction of karst tunnels…”
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Allocating inter-provincial CEA in China based on the utility perspective --a method for improving the variable weight function by Guo, Zhiping, Xiong, Chaohua

“… Specifically, the entropy method, SBM model, improved variable weight function, and ARIMA time series model are sequentially adopted to simulate the re-allocation scheme, examine its rationality…”
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Gauss-type quadrature rules for variable-sign weight functions by Tomanović, Jelena

“…When the Gauss quadrature formula Gn is applied, it is often assumed that the weight function (or the measure…”
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Application of a Variable Weight Time Function Combined Model in Surface Subsidence Prediction in Goaf Area: A Case Study in China by Chai, Huabin, Xu, Hui, Hu, Jibiao, Geng, Sijia, Guan, Pengju, Ding, Yahui, Zhao, Yuqiao, Xu, Mingtao, Chen, Lulu

“… Then we utilized a combined model approach and introduced the sliding window mechanism to assign variable weights to the model…”
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Grey comprehensive evaluation of development performance of provinces in China based on spatiotemporal probability function and variable weight strategy by Zhang, Shaoguang, Liu, Sifeng, Gatica, Gustavo, Fang, Zhigeng, Zhang, Jingru

“… In the past, when evaluating the development performance of various provinces in China, a single index weight was usually used…”
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P-116: APL-Adaptive Variable Weight Function for Improving Low Gray-Level Linearity and Gray-Level Expression in PDP-TV by Kang, Sung-Jin, Shin, Jung-Hwan, Lee, Dong-Ho, Chien, Sung-Il, Choi, Il-Hun

“…A new method is proposed to enhance the image quality by distributing sustain pulses among the subfields with a different rate according to the APL. Proposed…”
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Improved estimation of PC-SAFT equation of state parameters using a multi-objective variable-weight cost function by Fuenzalida, Martín, Cuevas-Valenzuela, José, Pérez-Correa, José Ricardo

“… The method consists in using information from a sensitivity analysis to define an improved variable-weight cost function and fixing the least sensitive parameter…”
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Existence of Multiple Solutions for a Quasilinear Elliptic System Involving Sign-Changing Weight Functions and Variable Exponent by Chu, Ying, Cheng, Libo, Sun, Jiahui, Cheng, Yi

“…The main purpose of this paper is to establish the existence of multiple solutions for a quasilinear elliptic system involving sign-changing weight functions and variable exponent…”
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Health status perception of oil-immersed power transformers considering wind power uncertainty by Yi, Lingzhi, Su, Xingren, Wang, Yahui, Xu, Xunjian, Liu, Jiangyong, She, Haixiang

“…•The optimal cloud entropy algorithm is utilizd to enhance the gray cloud model, and a dynamic weight allocation evaluation method is integrated based on variable weights for comprehensive state perception…”
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Advancing sustainable mining Practices: A dynamic ecological security and risk warning framework for ion-absorbed rare earth mine by Zhang, Jianying, Li, Hengkai, Ren, Guogang, Zhang, Zhiwei, Nie, Shengdong

“… To address these challenges, this study develops an innovative dynamic ES evaluation and early-warning simulation framework, integrating Variable Weight (VW…”
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Chebyshev Approximation of Multivariable Functions by a Power Expression by Malachivskyy, P. S., Melnychok, L. S., Pizyur, Ya. V.

“… Parameters for the polynomial approximation are computed as the boundary mean-power approximation through an iterative scheme using the least squares method with a variable weight function…”
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On the estimates of the values of various widths of classes of functions of two variables in the weight space L2,γ (ℝ2), γ = exp(− x2− y2) by Vakarchuk, Sergey B., Vakarchuk, Mihail B.

“…For the classes of functions of two variables W 2 (Ω m, γ , Ψ) = {f ∈ L 2 , γ (ℝ 2 ) : Ω m, γ ( f , t ) ⩽ Ψ( t ) ∀ t ∈ (0, 1)}, m ∈ ℕ, where Ω m, γ is a generalized modulus of continuity of the m -th order…”
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Chebyshev Approximation of a Multivariable Function with Reproducing the Values of the Function and Its Partial Derivatives by Malachivskyy, P. S., Melnychok, L. S., Pizyur, Ya. V.

“… The authors use an iterative scheme based on the least squares method with a variable weight function for constructing the mean-power approximation…”
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Chebyshev Approximation of Functions of Several Variables by Malachivskyy, P. S., Pizyur, Ya. V., Malachivskyi, R. P., Ukhanska, O. M.

“… → ∞. It is based on serial construction of power-average approximations using the least squares method with variable weight function…”
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Chebyshev Approximation of Multivariable Functions by a Logarithmic Expression by Malachivskyy, P. S., Melnychok, L. S., Pizyur, Ya. V.

“… formed values of variable weight function. The presented results of test examples’ solving confirm the fast convergence of the method in calculating the parameters of the Chebyshev approximation of the functions of one, two, and three variables by the logarithmic expression…”
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Chebyshev Approximation by the Power of a Rational Expression by Malachivskyy, P. S., Melnychok, L. S.

“… The approximation by the rational expression is computed as a limiting mean-power approximation using an iterative scheme based on the least squares method with two variable weight functions…”
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The Chebyshev Approximation by the Logarithm of a Rational Expression by Malachivskyy, P. S., Melnychok, L. S.

“… The approximation by the rational expression is calculated as the boundary of mean-power approximation using an iterative scheme based on the least squares method with two variable weight functions…”
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Chebyshev Approximation of Multivariable Functions by a Constrained Rational Expression by Malachivskyy, P. S., Melnychok, L. S., Pizyur, Ya.V.

“… → ∞. To construct such an approximation, an iterative scheme based on the least squares method with two variable weight functions is used…”
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Chebyshev Approximation of Multivariable Functions by the Exponential Expression by Malachivskyy, P. S., Melnychok, L. S., Pizyur, Ya. V.

“… An iterative scheme based on the least squares method with a variable weight function is used to construct the Chebyshev approximation of the multivariable functions by a generalized polynomial…”
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Design of variable weight SDRE control algorithm for civil aeroengine transition state by Zhenghong, Han, Wei, Wang, Shuai, Liu, Jie, Bai

“… A variable weight cost function with coupled state variable weight coefficient is established, and a parameter optimization method based on genetic algorithm is designed to obtain the mapping…”
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