Machine Learning Engineering Best Practices: From Research to Production


Apr 28, 2023
Machine Learning Engineering Best Practices: From
Machine learning models are becoming more prevalent in real-world applications, but their development and deployment can be challenging. To overcome these challenges, ML engineers must follow best practices to ensure that the models are efficient, scalable, and maintainable.

Understanding the Problem

Before developing an ML model, it is essential to understand the problem being solved thoroughly. This includes understanding the data, the business objectives, and the constraints. By understanding the problem, it is easier to select the right ML algorithms and techniques.

Data Preparation

Data preparation is a critical step in developing an ML model. This involves cleaning and transforming the data, handling missing values, and selecting the relevant features. ML engineers must also ensure that the data is unbiased and that there is enough of it to train the model.

Model Selection

Choosing the right ML model is crucial to achieving the best results. The selection process should involve comparing different models and techniques, evaluating their performance, and selecting the best one for the problem.

Hyperparameter Tuning

Hyperparameters are the parameters that are set before training the model. These parameters can significantly affect the model's performance. To achieve the best results, ML engineers must tune the hyperparameters and find the optimal values.

Model Training

After selecting the model and tuning the hyperparameters, the next step is to train the model. During training, it is crucial to monitor the model's performance and adjust the hyperparameters if necessary. It is also essential to avoid overfitting, which occurs when the model performs well on the training data but poorly on new data.

Model Evaluation

Once the model has been trained, it is necessary to evaluate its performance. This involves testing the model on new data and comparing its predictions to the actual outcomes. ML engineers must also calculate the model's accuracy, precision, recall, and F1 score.

Model Deployment

Deploying an ML model involves integrating it into a production environment, where it can be used to make predictions. It is essential to ensure that the model is scalable, efficient, and maintainable. This includes monitoring the model's performance, handling errors, and updating the model as new data becomes available.

Monitoring and Maintenance

After deploying the model, it is essential to monitor its performance continuously. This includes monitoring the data input, output, and the model's behavior. ML engineers must also handle any errors that arise and update the model as necessary.


Documenting the entire ML engineering process is crucial for future reference and replication. This includes documenting the problem statement, data preparation, model selection, hyperparameter tuning, model training, model evaluation, model deployment, and monitoring and maintenance.


Developing and deploying an ML model requires following best practices to ensure that the model is efficient, scalable, and maintainable. This article covered the best practices for machine learning engineering, from understanding the problem to documenting the entire process.

FAQs (Frequently Asked Questions)

Q: What is machine learning engineering?

A: Machine learning engineering is the process of developing, deploying, and maintaining machine learning models in real-world applications.

Q: What is data preparation in machine learning?

A: Data preparation involves cleaning and transforming the data, handling missing values, and selecting the relevant features for training the model.

Q: What is hyperparameter tuning in machine learning?

A: Hyperparameter tuning involves selecting the optimal values for the parameters that are set before training the model to achieve the best results.

Q: What is model deployment in machine

A: Model deployment is the process of integrating the trained ML model into a production environment, where it can be used to make predictions on new data.

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