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Published on 2010-04-10T07:45:02Z
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to retrieve k random numbers from an array of undetermined size we use a technique called reservoir sampling. Can anybody briefly highlight how it happens with a sample code??
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This MSDN article proves the correctness of Reservoir Sampling algorithm as follows:
Base case is trivial. For the k+1st
case, the probability a given
element i with position <= k is in R
is s/k.
The probability i is replaced is the probability k+1st element is chosen multiplied by i being…
>>> More
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This MSDN article proves the correctness of Reservoir Sampling algorithm as follows:
Base case is trivial. For the k+1st
case, the probability a given
element i with position <= k is in R
is s/k.
The probability i is replaced is the probability k+1st element is chosen multiplied by i being…
>>> More
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to retrieve k random numbers from an array of undetermined size we use a technique called reservoir sampling. Can anybody briefly highlight how it happens with a sample code??
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Ideally, we would know the exact answer to every question. How
many people support presidential candidate A vs. B? How many people
suffer from H1N1 in a given state? Does this batch of manufactured
widgets have any defective parts? Knowing exact answers is expensive in
terms of time
and money and…
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Our technologist samples dynamically, considers usage, and sets levels.
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