Prepare ML Data with Amazon SageMaker Data Wrangler - Amazon SageMaker

Prepare ML Data with Amazon SageMaker Data Wrangler

Amazon SageMaker Data Wrangler (Data Wrangler) is a feature of Amazon SageMaker Studio that provides an end-to-end solution to import, prepare, transform, featurize, and analyze data. You can integrate a Data Wrangler data flow into your machine learning (ML) workflows to simplify and streamline data pre-processing and feature engineering using little to no coding. You can also add your own Python scripts and transformations to customize workflows.

Data Wrangler provides the following core functionalities to help you analyze and prepare data for machine learning applications.

  • Import – Connect to and import data from Amazon Simple Storage Service (Amazon S3), Amazon Athena (Athena), and Amazon Redshift.

  • Data Flow – Create a data flow to define a series of ML data prep steps. You can use a flow to combine datasets from different data sources, identify the number and types of transformations you want to apply to datasets, and define a data prep workflow that can be integrated into an ML pipeline.

  • Transform – Clean and transform your dataset using standard transforms like string, vector, and numeric data formatting tools. Featurize your data using transforms like text and date/time embedding and categorical encoding.

  • Analyze – Analyze features in your dataset at any point in your flow. Data Wrangler includes built-in data visualization tools like scatter plots and histograms, as well as data analysis tools like target leakage analysis and quick modeling to understand feature correlation.

  • Export – Data Wrangler offers export options to other SageMaker services, including Data Wrangler jobs, Amazon SageMaker Feature Store, and pipelines, giving you the ability to integrate your data prep flow into your ML workflow. You can also export your Data Wrangler flow to Python code.

To start using Data Wrangler, see Get Started with Data Wrangler.