-The `sweep_step` is the step for hyperparameter tuning. Its type needs to be `sweep`. And `trial` refers to the command component defined in `train.yaml`. From the `search sapce` field we can see three hyparmeters (`c_value`, `kernel`, and `coef`) are added to the search space. After you submit this pipeline job, Azure Machine Learning will run the trial component multiple times to sweep over hyperparameters based on the search space and terminate policy you defined in `sweep_step`. Check [sweep job YAML schema](reference-yaml-job-sweep.md) for full schema of sweep job.
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