DatabricksML Associate83 cards5 domains

ML Associate Flashcards

Active recall study cards for the Databricks Certified Machine Learning Associate exam. Flip each card to reveal the answer, filter by domain, or shuffle for spaced repetition.

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ml-fundamentals

What is a Spark ML Estimator, and how does it differ from a Transformer?

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Answer

An Estimator is an algorithm that implements fit() and produces a Transformer when trained on data. A Transformer implements transform() to apply learned parameters to a DataFrame. Think: Estimator = recipe (needs training), Transformer = the trained result.

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