Smoothing sparse multinomial data using local polynomial fitting
Smoothing sparse multinomial data using local polynomial fitting
复制标题
使用局部多项式拟合平滑稀疏多项式数据
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
P. Janssen
中科院分区:
文献类型:
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作者:
M. Aerts;I. Augustyns;P. Janssen
To estimate cell probabilities for sparse multinomial data several smoothing techniques have been investigated. Here we propose local polynomial smoothers as estimators for the cell probabilities and we study their performance. For the mean sum of squared errors we obtain the optimal rate of convergence and we establish a central limit theorem. We show that local polynomial smoothers provide a nice alternative for already existing nonparametric estimators and we discuss interrelations. Some illustrations are also included.