Essays about: "Power-exponential function"
Found 4 essays containing the words Power-exponential function.
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1. Comparison of mortality rate forecasting using the Second Order Lee–Carter method with different mortality models
University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikationAbstract : Mortality information is very important for national planning and health of a country. Mortality rate forecasting is a basic contribution for the projection of financial improvement of pension plans, well-being and social strategy planning. READ MORE
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2. Non-linear Curve Fitting
University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikationAbstract : The work done in this thesis is to examine various methods for curve fitting. Linear least squares and non-linear least squares will be described and compared, and the Newton method, Gauss--Newton method and Levenberg--Marquardt method will be applied to example problems. .. READ MORE
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3. Application of a power-exponential function based model to mortality rates forecasting
University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikationAbstract : De modellering van een wet of mortaliteit heeft een consequente interesse van een grote meerderheid van onderzoekers en vele modellen door de jaren is voorgesteld. The first aim of this thesis is to systematically evaluate a selection of models --- Modified Perks, Heligman-Pollard and Power-exponential --- to determine their relative strengths and weaknesses with regard to forecasting the mortality rate using the Lee-Carter model. READ MORE
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4. Nonlinear Regression of Power-Exponential Functions : Experiment Design for Curve Fitting
University essay from Mälardalens högskola/Utbildningsvetenskap och MatematikAbstract : This thesis explores how to best choose data when curve fitting using power exponential functions. The power exponential functions used are μ(b; x)=(xe1-x)b and Φ(ρ; x)=((1-x)ex)ρ . We use a number of designs such as the equidistant design, the Chebyshev design and the the D-optimal design to compare which design gives the best fit. READ MORE