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Stochastic dynamic models and Chebyshev splines.


ABSTRACT: In this article, we establish a connection between a stochastic dynamic model (SDM) driven by a linear stochastic differential equation (SDE) and a Chebyshev spline, which enables researchers to borrow strength across fields both theoretically and numerically. We construct a differential operator for the penalty function and develop a reproducing kernel Hilbert space (RKHS) induced by the SDM and the Chebyshev spline. The general form of the linear SDE allows us to extend the well-known connection between an integrated Brownian motion and a polynomial spline to a connection between more complex diffusion processes and Chebyshev splines. One interesting special case is connection between an integrated Ornstein-Uhlenbeck process and an exponential spline. We use two real data sets to illustrate the integrated Ornstein-Uhlenbeck process model and exponential spline model and show their estimates are almost identical.

SUBMITTER: Fan R 

PROVIDER: S-EPMC4451187 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

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Stochastic dynamic models and Chebyshev splines.

Fan Ruzong R   Zhu Bin B   Wang Yuedong Y  

The Canadian journal of statistics = Revue canadienne de statistique 20141201 4


In this article, we establish a connection between a stochastic dynamic model (SDM) driven by a linear stochastic differential equation (SDE) and a Chebyshev spline, which enables researchers to borrow strength across fields both theoretically and numerically. We construct a differential operator for the penalty function and develop a reproducing kernel Hilbert space (RKHS) induced by the SDM and the Chebyshev spline. The general form of the linear SDE allows us to extend the well-known connecti  ...[more]

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