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以概率1收敛(a.s.收敛)问题

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tommywong Posted at 2016-5-16 07:25:51 |Read mode
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现充已死,エロ当立。
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《方幂和及其推广和式》 数学学习与研究2016.

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战巡 Posted at 2016-5-16 13:19:24
回复 1# tommywong

\[P(\rho=1)=P(f(\xi)\ge\eta)=\int_0^1P(f(\xi)\ge\eta|f(\xi))P(f(\xi))=\int_0^1f(\xi)·\frac{df(\xi)}{f'(\xi)}=\int_0^1f(\xi)d\xi=p\]
而后显然
\[\sum_{k=1}^n\rho_k\sim BIN(n,p)\]


这个延伸下去可以得出Metropolis–Hastings算法,可以对一些不那么常见的分布进行抽样模拟,往往用在MCMC里面

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 Author| tommywong Posted at 2016-5-17 06:11:07
收皮性呢?

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