Journaliser une exécution

Dans cet exercice, vous allez entraîner un modèle avec Linear Regression de scikit-learn pour prédire le profit à partir du jeu de données Unicorn. Vous avez créé une expérience appelée Unicorn Sklearn Experiment et démarré une nouvelle exécution. Vous allez journaliser la métrique r2_score et le paramètre n_jobs, ainsi que le code d’entraînement en tant qu’artefact.

Le modèle Linear Regression sera entraîné avec le paramètre n_jobs défini à 1. La métrique r2_score a été calculée avec r2_score() de scikit-learn à partir de la variable y_pred, issue des prédictions sur X_test.

model = LinearRegression(n_jobs=1)
model.fit(X_train, y_train)

y_pred = model.predict(X_test)

r2_score = r2_score(y_test, y_pred)

Le module mlflow ainsi que les modules LinearRegression, train_test_split et metrics de scikit-learn seront importés.

Cet exercice fait partie du cours

Introduction à MLflow

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Instructions

Journalisez la variable r2_score en tant que métrique appelée "r2_score".
Journalisez un paramètre appelé "n_jobs" vers le Tracking Server.
Journalisez le fichier "train.py" comme artefact dans l’exécution.

Exercice interactif pratique

Essayez cet exercice en complétant cet exemple de code.

# Log the metric r2_score as "r2_score"
____.____("____", ____)

# Log parameter n_jobs as "n_jobs"
____.____("____", ____)

# Log the training code
____.____("train.py")

Modifier et exécuter le code

Cet exercice fait partie du cours

Introduction à MLflow

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In this Chapter, you will be introduced to MLflow and how it aims to assist with some difficulties of the Machine Learning lifecycle. You will be introduced to the four main concepts that make up MLflow with a main focus on MLflow Tracking. You will learn to create experiments and runs as well as how to track metrics, parameters, and artifacts. Finally, you will search MLflow programmatically to find experiment runs that fit certain criteria.

Exercise 1: Qu’est-ce que MLflow ?Exercise 2: Composants de MLflow Exercise 3: Expériences MLflow Exercise 4: MLflow Tracking Exercise 5: Démarrer une exécution Exercise 6: Journaliser une exécution

Exercice en cours

Exercise 7: Comment récupérer les données de l’exécution active ?Exercise 8: Interroger des exécutions Exercise 9: Options de requête pour la recherche de runs Exercise 10: Rechercher des runs

In this Chapter, you will be introduced to MLflow Models. The MLflow Models component of MLflow plays an essential role in the Model Evaluation and Model Engineering steps of the Machine Learning lifecycle. You will learn how MLflow Models standardizes the packaging of ML models as well as how to save, log and load them. You will learn how to create custom MLflow Models to provide more flexibility to your use cases as well as how to evaluate model performance. You will utilize the powerful concept of “Flavors” and finally use the MLflow command line tool for model deployment.

Exercise 1: Introduction to MLflow Models Exercise 2: Package a machine learning model Exercise 3: Storage Format Exercise 4: What's in an MLmodel file?Exercise 5: Model API Exercise 6: Saving and loading a model Exercise 7: Logging and loading a model Exercise 8: Custom models Exercise 9: Creating a custom Python Class Exercise 10: Custom scikit-learn model Exercise 11: Scikit-learn flavor and evaluation Exercise 12: Model serving Exercise 13: Serving a model Exercise 14: Score from a served model

This Chapter introduces the concept of MLflow called the Model Registry. You will be introduced to how the Model Registry is used to manage the lifecycle of ML models. You will learn how to create and search for models in the Model Registry. You then learn how to register models to the Model Registry and learn how to transition models between predefined stages. Finally, you will also learn how to deploy models from the Model Registry.

Exercise 1: Introduction to MLflow Model Registry Exercise 2: Create a Model Exercise 3: Searching Models Exercise 4: Registering Models Exercise 5: Registering existing models Exercise 6: Registering new models Exercise 7: Model stages Exercise 8: Model stages in Model Registry Exercise 9: Transitioning model stages Exercise 10: Model deployment Exercise 11: Serving models from the Model Registry Exercise 12: Loading models from the Model Registry

In this chapter, you'll gain valuable knowledge on how to streamline your data science code for reusability and reproducibility using MLflow Projects. The chapter begins by introducing the concept of MLflow Projects and walking you through creating an MLproject file. From there, you'll learn how to run MLflow Projects through both the command-line and the MLflow Projects module while also discovering the power of using parameters for added flexibility in your code. Finally, you will learn how to manage steps of the machine learning lifecycle by creating a multi-step workflow using MLflow Projects.

Exercise 1: Introduction to MLflow Projects Exercise 2: MLproject file layout Exercise 3: Creating an MLproject Exercise 4: Running MLflow Projects Exercise 5: MLflow run command Exercise 6: MLflow projects module Exercise 7: Specifying parameters Exercise 8: Adding parameters to MLproject Exercise 9: Adding parameters to project run Exercise 10: Workflows Exercise 11: Creating an MLproject for the ML Lifecycle: Model Engineering Exercise 12: Creating an MLproject for the ML Lifecycle: Model Evaluation Exercise 13: Creating a multi-step workflow: Model Engineering Exercise 14: Creating a multi-step workflow: Model Evaluation Exercise 15: Wrap-up