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https://issues.apache.org/jira/browse/FLINK-1901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636332#comment-14636332
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Chengxiang Li commented on FLINK-1901:
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I write a simple example of sampling operator at
[here|https://github.com/ChengXiangLi/flink/blob/FLINK-1901/flink-examples/flink-java-examples/src/main/java/org/apache/flink/examples/java/wordcount/TestSample.java],
it works just as expected inside or outside of iteration(for example, 1000
items, sample fraction 0.5, after 3 iterations, output contains around 125
items), [[email protected]], i'm not sure whether i understand you
correctly about sampling inside iteration, it looks same to me if it's the case
in the example.
> Create sample operator for Dataset
> ----------------------------------
>
> Key: FLINK-1901
> URL: https://issues.apache.org/jira/browse/FLINK-1901
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Reporter: Theodore Vasiloudis
> Assignee: Chengxiang Li
>
> In order to be able to implement Stochastic Gradient Descent and a number of
> other machine learning algorithms we need to have a way to take a random
> sample from a Dataset.
> We need to be able to sample with or without replacement from the Dataset,
> choose the relative size of the sample, and set a seed for reproducibility.
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