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Describe how you would handle hyperparameter tuning in a distributed machine learning environment using Spark ML. What tools and techniques would you use to optimize the model's performance across a cluster?
A
Use manual tuning with small-scale experiments; tools include basic DataFrame operations.
B
Employ Spark ML's CrossValidator and TrainValidationSplit for automated tuning; utilize grid search and randomized search techniques.
C
Rely on pre-set default hyperparameters; tools include model import functions.
D
Outsource hyperparameter tuning to a third-party service; tools include API integrations.
