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https://issues.apache.org/jira/browse/DATAFU-16?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13878635#comment-13878635
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jian wang edited comment on DATAFU-16 at 1/22/14 1:35 PM:
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According to Matt's feedback on review request
https://reviews.apache.org/r/17058/, need to re-think how we implement the
reservoir sample with exponential jumps. Will done an offline simulation using
the exp jump reservoir by this weekend.
was (Author: king821221):
According to Matt's feedback on review request
https://reviews.apache.org/r/17058/, need to re-think how we implement the
reservoir sample with exponential jumps. Will do an offline simulation by this
weekend.
> weighted reservoir sampling with exponential jumps UDF
> ------------------------------------------------------
>
> Key: DATAFU-16
> URL: https://issues.apache.org/jira/browse/DATAFU-16
> Project: DataFu
> Issue Type: New Feature
> Environment: Mac, Linux
> pig-0.11
> Reporter: jian wang
>
> Create a weightedReservoirSampleWithExpJump UDF to implement the weighted
> reservoir sampling algorithm with exponential jumps. Investigation is tracked
> in https://github.com/linkedin/datafu/issues/80. This task is part of
> experiment of different weighted sampling algorithms.
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