Search Results - "variable weight function"
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A new quantitative method for risk assessment of water inrush in karst tunnels based on variable weight function and improved cloud model
ISSN: 0886-7798, 1878-4364Published: Oxford Elsevier Ltd 01.01.2020Published in Tunnelling and underground space technology (01.01.2020)“…•The VM&ICM model improved the weight distribution of risk indicators and reduced the impact of human subjective factors on the assessment results. And it has…”
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Allocating inter-provincial CEA in China based on the utility perspective --a method for improving the variable weight function
ISSN: 2296-665X, 2296-665XPublished: Frontiers Media S.A 25.09.2024Published in Frontiers in environmental science (25.09.2024)“… 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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Health status perception of oil-immersed power transformers considering wind power uncertainty
ISSN: 0378-7796, 1873-2046Published: Elsevier B.V 01.09.2024Published in Electric power systems research (01.09.2024)“…•The optimal cloud entropy algorithm is utilizd to enhance the gray cloud model, and a dynamic weight allocation evaluation method is integrated based on…”
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Advancing sustainable mining Practices: A dynamic ecological security and risk warning framework for ion-absorbed rare earth mine
ISSN: 0959-6526Published: Elsevier Ltd 15.06.2025Published in Journal of cleaner production (15.06.2025)“…The southern regions of China are rich in ion-adsorbed rare earth mineral resources, primarily distributed in ecologically fragile red soil hilly areas. Recent…”
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Chebyshev Approximation by the Power of a Rational Expression
ISSN: 1060-0396, 1573-8337Published: Cham Springer International Publishing 01.05.2025Published in Cybernetics and systems analysis (01.05.2025)“… 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
ISSN: 1060-0396, 1573-8337Published: Cham Springer International Publishing 01.01.2025Published in Cybernetics and systems analysis (01.01.2025)“… 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 Power Expression
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.07.2024Published in Cybernetics and systems analysis (01.07.2024)“… 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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Chebyshev Approximation of Multivariable Functions by a Logarithmic Expression
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.03.2023Published in Cybernetics and systems analysis (01.03.2023)“… 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 of a Multivariable Function with Reproducing the Values of the Function and Its Partial Derivatives
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.07.2023Published in Cybernetics and systems analysis (01.07.2023)“… 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 Multivariable Functions by the Exponential Expression
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.05.2021Published in Cybernetics and systems analysis (01.05.2021)“… 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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Chebyshev Approximation of Multivariable Functions by a Constrained Rational Expression
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.01.2023Published in Cybernetics and systems analysis (01.01.2023)“… → ∞. 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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P-116: APL-Adaptive Variable Weight Function for Improving Low Gray-Level Linearity and Gray-Level Expression in PDP-TV
ISSN: 0097-966X, 2168-0159Published: Oxford, UK Blackwell Publishing Ltd 01.06.2006Published in SID International Symposium Digest of technical papers (01.06.2006)“…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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Chebyshev Approximation of Functions of Several Variables
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.01.2020Published in Cybernetics and systems analysis (01.01.2020)“… → ∞. It is based on serial construction of power-average approximations using the least squares method with variable weight function…”
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Fragile States Metric System: An Assessment Model Considering Climate Change
ISSN: 2071-1050, 2071-1050Published: Basel MDPI AG 28.05.2018Published in Sustainability (28.05.2018)“…)-Entropy method and variable weight function model, to calculate the weights. As the result, from 2007 to 2017, European countries, in particular…”
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Uniform Approximation of Functions of Two Variables
ISSN: 1060-0396, 1573-8337Published: New York Springer US 01.05.2017Published in Cybernetics and systems analysis (01.05.2017)“… → ∞. It is based on root mean square approximation with variable weight function. We propose a technique of successive adjustment of weight function and give examples…”
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Chebyshev approximation by the exponent from a rational expression
ISSN: 2312-9794, 2415-3788Published: 2025Published in Mathematical Modeling and Computing (2025)“… The approximation by a rational expression is calculated as the boundary mean-power approximation using an iterative scheme based on the least squares method with two variable weight functions…”
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Evaluation Method for Insulation State of Cable Intermediate Joint based on Variable Weight and Set Pair Analysis
ISSN: 2831-4549Published: IEEE 18.11.2022Published in IEEE International Conference on Automation, Electronics and Electrical Engineering (Online) (18.11.2022)“… On the basis of determining the constant weights, the corresponding state variable weight function is constructed according to the change law of each index in the process of cable joint insulation…”
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Conference Proceeding -
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Chebyshev Approximation of the Functions of Many Variables with the Condition
Published: IEEE 23.09.2020Published in 2020 IEEE 15th International Conference on Computer Sciences and Information Technologies (CSIT) (23.09.2020)“… The mean-power approximation is calculated using an iterative scheme based on the method of least squares with the variable weight function…”
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Conference Proceeding -
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State Evaluation Method of Traction Transformer Based on Variable Weight Coefficient and Bayesian Network
ISSN: 2166-5656Published: IEEE 01.10.2020Published in Prognostics and System Health Management Conference (01.10.2020)“…Traction transformer is one of the core equipment of traction power supply system, and its safe and stable operation are very important for this electrified…”
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Conference Proceeding -
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Risk assessment of buried gas pipelines based on improved cloud-variable weight theory
ISSN: 0951-8320, 1879-0836Published: Barking Elsevier Ltd 01.05.2022Published in Reliability engineering & system safety (01.05.2022)“…•Variable weight function highlights the negative effects of the index with higher risk.•Can help pipeline operators make optimal risk decisions with limited resources…”
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