نتایج جستجو برای: piecewise regression
تعداد نتایج: 331244 فیلتر نتایج به سال:
We study the problem of one-dimensional regression data points with total-variation (TV) regularization (in sense measures) on second derivative, which is known to promote piecewise-linear solutions few knots. While there are efficient algorithms for determining such adaptive splines, difficulty TV that solution generally non-unique, an aspect often ignored in practice. In this paper, we presen...
Yu et al. (Fuzzy Sets and Systems 105 (1999) 429) performed general piecewise necessity regression analysis based on linear programming (LP) to obtain the necessity area. Their method is the same as that according to data distribution, even if the data are irregular, practitioners must specify the number and the positions of change-points. However, as the sample size increases, the number of ch...
BACKGROUND In population-based cancer research, piecewise exponential regression models are used to derive adjusted estimates of excess mortality due to cancer using the Poisson generalized linear modelling framework. However, the assumption that the conditional mean and variance of the rate parameter given the set of covariates x i are equal is strong and may fail to account for overdispersion...
in this article, a new method is introduced to give approximate solution to van der pol equation. the proposed method is based on the combination of two different methods, the spectral adomian decomposition method (sadm) and piecewise method, called the piecewise adomian decomposition method (psadm). the numerical results obtained from the proposed method show that this method is an...
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