[jira] [Created] (FLINK-1901) Create sample operator for Dataset

[Shang Yuanchun (Jira)]

Theodore Vasiloudis created FLINK-1901:
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             Summary: 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


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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