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BrainHook Glossary

Machine Learning Pipelines

An automated workflow that chains data prep, model training, and deployment into a single, reproducible sequence, ensuring ML systems scale efficiently without manual intervention at each stage.

Machine Learning Pipelines — BrainHook Glossary card

A machine learning pipeline is an automated workflow that orchestrates the end-to-end process of building ML systems, including data ingestion, preprocessing, feature engineering, model training, evaluation, and deployment. It ensures reproducibility and efficiency by chaining these stages into a single, reusable sequence, often implemented with tools like Apache Airflow or MLflow.

What this means in real life

A bank's loan-approval system uses a pipeline: incoming applications are automatically cleaned (missing values filled), converted into numerical features (income-to-debt ratio calculated), fed into a trained model, and scored—all without human intervention between steps.

What it isn’t

Not simply a machine learning model itself. A pipeline is the *entire assembly line* that feeds data into and through a model; the model is just one component. Confusing the two leads people to think training a model is the same as building a production system.

Commonly misused online

Often used to mean 'any workflow involving data,' when technically it refers to *automated, repeatable* sequences. Social media posts sometimes call a one-off analysis a 'pipeline,' diluting the term's emphasis on reproducibility and scale.