Vous voulez en savoir plus sur Vertex AI Feature Store ? Vous souhaitez découvrir comment améliorer la précision de vos modèles de ML ? Comment déterminer les colonnes de données présentant les caractéristiques les plus utiles ? Bienvenue dans le cours "Feature Engineering", dans lequel vous apprendrez à distinguer les caractéristiques pertinentes de celles qui ne le sont pas. Vous verrez aussi comment les prétraiter et les transformer pour les utiliser de manière optimale dans vos modèles. Ce cours inclut du contenu et des ateliers portant sur l'extraction de caractéristiques à l'aide de BigQuery ML, Keras et TensorFlow.
This course is part of the Machine Learning with TensorFlow on Google Cloud en Français Specialization
Feature Engineering en Français
About this Course
What you will learn
Utiliser Vertex AI Feature Store
Expliquer comment transformer des données brutes en caractéristiques et effectuer une extraction de caractéristiques
Prétraiter des caractéristiques à l'aide d'Apache Beam et de Cloud Dataflow
We help millions of organizations empower their employees, serve their customers, and build what’s next for their businesses with innovative technology created in—and for—the cloud. Our products are engineered for security, reliability, and scalability, running the full stack from infrastructure to applications to devices and hardware. Our teams are dedicated to helping customers apply our technologies to create success.
Syllabus - What you will learn from this course
Ce module présente le cours et ses objectifs.
Présentation de Vertex AI Feature Store
Ce module présente Vertex AI Feature Store.
Des données brutes aux caractéristiques
L'extraction de caractéristiques est souvent la phase la plus longue et la plus difficile du développement de votre projet de ML. Dans le processus d'extraction de caractéristiques, vous partez de vos données brutes et utilisez votre propre connaissance du domaine pour créer des caractéristiques qui feront fonctionner vos algorithmes de ML. Dans ce module, nous explorerons ce qui constitue une bonne caractéristique et découvrirons comment la représenter dans votre modèle de ML.
Extraction de caractéristiques
Ce module examine les différences entre le machine learning et les statistiques, et comment effectuer une extraction de caractéristiques dans BigQuery ML et Keras. Nous aborderons également certaines pratiques avancées d'extraction de caractéristiques.
Prétraiter et créer des caractéristiques
Dans ce module, vous en apprendrez plus sur Dataflow, une technologie complémentaire d'Apache Beam. Grâce à ces deux technologies, vous pouvez créer et accéder à des fonctionnalités de prétraitement et d'extraction de caractéristiques.
Croisements de caractéristiques – TensorFlow Playground
Dans le machine learning traditionnel, les croisements de caractéristiques ne jouent pas un rôle très important, mais dans les méthodes modernes, ils constituent un outil à la valeur inestimable. Dans ce module, vous apprendrez à reconnaître les types de problèmes pour lesquels les croisements de caractéristiques constituent un outil puissant aidant les machines à apprendre.
Présentation de TensorFlow Transform
TensorFlow Transform (tf.Transform) est une bibliothèque de prétraitement des données avec TensorFlow qui est utile pour les prétraitements nécessitant un passage complet des données, comme : - la normalisation d'une valeur d'entrée par la moyenne et l'écart type - la conversion de chaînes en nombres entiers en générant un vocabulaire sur toutes les valeurs d'entrée - la mise en buckets des entrées basées sur la distribution des données observées Dans ce module, nous allons explorer les cas d'utilisation de tf.Transform.
Ce module est un résumé du cours "Feature Engineering".
About the Machine Learning with TensorFlow on Google Cloud en Français Specialization
Qu'est-ce que le machine learning et quels types de problèmes permet-il de résoudre ? Quelles sont les cinq phases permettant de traiter un cas d'utilisation à l'aide du machine learning, et pourquoi chaque étape est-elle essentielle ? Pourquoi les réseaux de neurones sont-ils désormais si courants ? Comment définir un problème d'apprentissage supervisé et trouver une solution adaptée et généralisable à l'aide de la descente de gradient et d'une méthode pertinente de création d'ensembles de données ? Apprenez à créer des modèles de machine learning distribués qui pourront évoluer dans TensorFlow, à adapter l'entraînement de ces modèles pour bénéficier d'une évolutivité horizontale et à obtenir des prédictions très performantes. Convertissez les données brutes en caractéristiques de sorte que les processus de ML soient en mesure d'identifier les propriétés importantes dans les données et générez des insights qui ont du sens en rapport avec la problématique. Enfin, découvrez comment intégrer à la fois la combinaison de paramètres permettant d'obtenir des modèles précis et généralisés, et une connaissance de la théorie indispensable pour résoudre des types spécifiques de problèmes de ML.
Vous expérimenterez le ML de bout en bout en commençant par créer une stratégie centrée sur le ML, puis en progressant dans le processus d'entraînement, d'optimisation et de production de modèles grâce à des ateliers pratiques faisant appel à Google Cloud Platform. >>> En vous inscrivant à cette spécialisation vous acceptez les conditions d'utilisation de Qwiklabs décrites dans la FAQ et disponibles à l'adresse: https://qwiklabs.com/terms_of_service <<<
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Last Updated: September 1, 2015
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