[jira] [Created] (FLINK-14152) Add class for DocCountVectorizerMapper.

[Shang Yuanchun (Jira)]

Xu Yang created FLINK-14152:
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             Summary: Add  class  for  DocCountVectorizerMapper.
                 Key: FLINK-14152
                 URL: https://issues.apache.org/jira/browse/FLINK-14152
             Project: Flink
          Issue Type: Sub-task
          Components: Library / Machine Learning
            Reporter: Xu Yang






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