Github user sachingoel0101 commented on the pull request:
https://github.com/apache/flink/pull/757#issuecomment-117220314
Hey @thvasilo , I'm going to break up this PR further. The motivation is
that, the Sampling code should be available as a general feature. Given a
probability distribution over data, user should be able to sample as many
points as they want.
The Sampler will take the DataSet as input, number of samples required and
a function which determines the relative probability of a particular element
being picked, apart from specifying whether the elements should be sampled with
replacement or without replacement.
Let me know your thoughts. I'll work out a version in the meantime. If this
is desirable, I will file a JIRA ticket and open a separate PR.
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