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Question regarding online bagging (bootstrap)

  1. Mar 17, 2012 #1
    Hello guys,

    I'm trying to understand the proof of convergence for online bagging/bootstrap, in the Oza's paper an expression says:

    θ ~ [itex]\sum[/itex][itex]^{N}_{t=0}[/itex]P(Poisson(N)=t)Multinomial(t,1/N)

    θ may represents a vector with each element being a real value;
    Poisson() is the Poisson distribution;
    t is certain real value;
    Multinomial() is the multinomial distribution...

    But I am totally lost when put all these stuff together
    what's that mean by adding up the multiplication of a probability with a distribution?

    I don't have a solid background on probability and I've been tortured by these for a while...hopefully I can get some suggestion...

    Thanks a lot in advance!
  2. jcsd
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