On The Density Estimation by Super-Parametric Method

Details On The Density Estimation by Super-Parametric Method On The Density Estimation by Super-Parametric Method

2007-09-24

arxiv.org/abs/0709.3560v7

Statistics

Computation

In this paper, new aspproaches od density estimation are studied. The B-spline estimatos and the Berzier spline are stdudied c

Scientific paper

The super-parametric density estimators and its related algorism were suggested by Y. -S. Tsai et al [7]. The number of parameters is unlimited in the super- parametric estimators and it is a general theory in sense of unifying or connecting nonparametric and parametric estimators. Before applying to numerical examples, we can not give any comment of the estimators. In this paper, we will focus on the implementation, the computer programming, of the algorism and strategies of choosing window functions. B-splines, Bezier splines and covering windows are studied as well. According to the criterion of the convergence conditions for Parzen window, the number of the window functions shall be, roughly, proportional to the number of samples and so is the number of the variables. Since the algorism is designed for solving the optimization of likelihood function, there will be a set of nonlinear equations with a large number of variables. The results show that algorism suggested by Y. -S. Tsai is very powerful and effective in the sense of mathematics, that is, the iteration procedures converge and the rates of convergence are very fast. Also, the numerical results of different window functions show that the approach of super-parametric density estimators has ushered a new era of statistics.

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