Introduce Vectorizer to ML models

Texera / texera

Collaborative Machine-Learning-Centric Data Analytics Using Workflows

https://texera.github.io

Apache License 2.0

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Closed aglinxinyuan closed 4 months ago

aglinxinyuan commented 5 months ago

This PR introduces CountVectorizer and TfidfTransformer such that ML operators can take text feature as input and train the models.