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Posted to issues@flink.apache.org by "GaoLun (JIRA)" <ji...@apache.org> on 2016/04/19 08:15:25 UTC
[jira] [Created] (FLINK-3783) Support weighted random sampling with
reservoir
GaoLun created FLINK-3783:
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Summary: Support weighted random sampling with reservoir
Key: FLINK-3783
URL: https://issues.apache.org/jira/browse/FLINK-3783
Project: Flink
Issue Type: Improvement
Components: Core
Reporter: GaoLun
Assignee: GaoLun
Priority: Minor
In default random sampling, all items have the same probability to be selected. But in weighted random sampling, the probability of each item to be selected is determined by its weight with respect to the weights of the other items.
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