[FLINK-29604] Add Estimator and Transformer for CountVectorizer

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: ml-2.2.0
• Fix Version/s: ml-2.2.0
• Component/s: Library / Machine Learning
• Labels: pull-request-available
• Assignee: Jiang Xin
• Reporter: Yunfeng Zhou
• Created: 12/Oct/22 10:02
• Updated: 23/Nov/22 09:29
• Resolved: 23/Nov/22 09:29

Description

Add Estimator and Transformer for CountVectorizer.

Its function would be at least equivalent to Spark's org.apache.spark.ml.feature.CountVectorizer. The relevant PR should contain the following components:

• Java implementation/test (Must include)
• Python implementation/test (Optional)
• Markdown document (Optional)

Issue Links

• links to: GitHub Pull Request #174