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Common used kernel functions are Epanechnikov, Gaussian, Quartic and Triweight kernel, etc. Since the Gaussian kernel is unbounded (x¡Ê(-¡Þ,+¡Þ)), it exacerbates the cost of computing integral. Quartic and Triweight kernel are fourth and sixth function each other.
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dllkg(½ð±Ò+5, ·­ÒëEPI+1):лл°ïÖú£¡ 2010-07-16 16:03:34
Common used kernel functions are Epanechnikov, Gaussian, Quartic and Triweight kernel, etc. Since the Gaussian kernel is unbounded (x¡Ê(-¡Þ,+¡Þ)), it exacerbates the cost of computing integral. Quartic and Triweight kernel are fourth and sixth function each other.
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dllkg

ľ³æ (СÓÐÃûÆø)

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Originally posted by zerohead at 2010-07-15 10:27:42:
Common used kernel functions are Epanechnikov, Gaussian, Quartic and Triweight kernel, etc. Since the Gaussian kernel is unbounded (x¡Ê(-¡Þ,+¡Þ)), it exacerbates the cost of computing integral. Qua ...

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zerohead

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Originally posted by dllkg at 2010-07-16 07:36:29:
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[ Last edited by zerohead on 2010-7-16 at 08:26 ]
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dllkg

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Originally posted by zerohead at 2010-07-16 07:55:20:


Quartic ÊÇËĴη½µÄ
Triweight (=tricube) ÊÇÁù´Î·½µÄ

ÒªÃ÷°×ÕâЩ£¬ÄãµÃÒªÖªµÀʲôÊÇ Kernel regression ºÍ Kernel functions£¬Õâ¾Í²»ÊÇ·­ÒëµÄÎÊÌâÀ²¡£

[ Last edited by zerohead on 2010-7-16 at 0 ...

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