Lessons from Applied Machine Learning
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Applied machine learning is often less about finding a clever model and more about asking better questions of the data.
Establish a baseline early
A simple baseline creates a reference point for every later experiment. Without it, improvements can sound impressive while remaining difficult to interpret.
Spend time on data slices
Aggregate metrics hide uneven behavior. Inspect results across meaningful segments and record where the model becomes uncertain or brittle.
Communicate the trade-offs
A useful result includes the metric, the evaluation setup, the limitations, and the next experiment. This makes the work actionable for people who did not build the model.