Displaying similar documents to “Regime-switching models of time series with cubic spline transition function in geodetic application”

On one approach to local surface smoothing

Nikolay Dikoussar, Csaba Török (2007)

Kybernetika

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A bicubic model for local smoothing of surfaces is constructed on the base of pivot points. Such an approach allows reducing the dimension of matrix of normal equations more than twice. The model enables to increase essentially the speed and stability of calculations. The algorithms, constructed by the aid of the offered model, can be used both in applications and the development of global methods for smoothing and approximation of surfaces.

Finite mixture models with fixed weights applied to growth data

Marek Molas, Emmanuel Lesaffre (2012)

Biometrical Letters

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To model cross-sectional growth data the LMS method is widely applied. In this method the distribution is summarized by three parameters: the Box-Cox power that converts outcome to normality (L); the median (M); and the coeficient of variation (S). Here, we propose an alternative approach based on fitting finite mixture models with several components which may perform better than the LMS method in case the data show an unusual distribution. Further, we explore fixing the weights of the...