Xu Yang created FLINK-14151:
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Summary: Add class for DocHashIDFVectorizerModelMapper.
Key: FLINK-14151
URL: https://issues.apache.org/jira/browse/FLINK-14151
Project: Flink
Issue Type: Sub-task
Components: Library / Machine Learning
Reporter: Xu Yang
DocHashIDFVectorizerModelMapper is a transformer to transform a document
to a sparse vector based on the inverse document frequency(idf).
* Add DocHashIDFVectorizerModelMapper for the operation of the
DocHashIDFVectorizerModelMapper.
* Add DocHashIDFVectorizerModelData to save model data.
* Add DocHashIDFVectorizerModelDataConverter to serialize and deserialize
model.
* Add DocHashIDFVectorizerPredictParams for the params of
DocHashIDFVectorizerModelMapper.
* Add DocHashIDFVectorizerModelMapperTest for the test example.
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