ballet 0.6.2

Core functionality for lightweight, collaborative data science projects

ballet

A lightweight framework for collaborative data science projects through feature engineering.

Ballet is under active development, please report all bugs.

• Free software: MIT license
• Documentation: https://hdi-project.github.io/ballet
• Homepage: https://github.com/HDI-Project/ballet

Overview

Ballet projects maintain a feature engineering pipeline invariant: at any point, the code and features within a project repository can be used for end-to-end feature engineering for a given dataset. To expand on an existing feature engineering pipeline, well-structured feature source code submissions can be proposed by contributors and extensively validated for compatibility and performance.

How do you use the Ballet framework? First, you render a brand new ballet project from a provided project template using a quickstart command and push it to GitHub. This project contains an "empty" feature engineering pipeline. Next, you and your collaborators write feature engineering source code and submit pull requests to include your new features in the project and grow the pipeline. Features are instances of ballet.Feature, usually leveraging ballet.eng, a library of versatile transformers and transformer building blocks for developing features that learn. Once new pull requests are received by your project, a continuous integration service runs a streaming logical feature selection algorithm. This is part of an extensive feature validation suite that makes sure both that the proposed features are useful and that they can be safely integrated into your project. If the proposed feature is accepted, it can be safely merged.

History

0.6 (2019-11-12)

• Implement GFSSF validators and random validators
• Improve validators and allow validators to be configured in ballet.yml
• Improve project template
• Create ballet CLI
• Bug fixes and performance improvements

0.5 (2018-10-14)

• Add project template and ballet-quickstart command
• Add project structure checks and feature API checks
• Implement multi-stage validation routine driver

0.4 (2018-09-21)

• Implement Modeler for versatile modeling and evaluation
• Change project name

0.3 (2018-04-28)

• Implement PullRequestFeatureValidator
• Add util.travis, util.modutil, util.git util modules

0.2

• Implement ArrayLikeEqualityTestingMixin
• Implement collect_contrib_features

0.1

• First release on PyPI