New release: on Tuesday, July 31st, 2007, Rapid-I released a new version of the open-source data mining software RapidMiner 4.0 (formerly: YALE).

Because of legal issues, Rapid-I decided to change the name of YALE. The name RapidMiner was chosen for its fit to the company name Rapid-I and to the naming scheme of the line of products planned by Rapid-I for the future. Only the name changes. Everything else stays the same. RapidMiner / YALE will remain open-source software under GNU GPL and available to end-users free of charge and is also available under a commercial OEM license.

Changes from RapidMiner 4.0beta2 to RapidMiner 4.0

General Improvements:

• RapidMiner now supports workspaces for different projects. The default workspace must be set during the first start of RapidMiner.
• Training and test data do no longer need to have exactly the same structure. Changing the order of nominal values often caused problems for past versions.
• The operator PerformanceEvaluator is now divided into smaller task dependent operators allowing for additional checks.
• New compatibility checks for prediction models between training and application data.
• A filter for the New Operator tab is added.
• Added learning for numerical attributes for rule learners.
• Improved the visualization for almost all performance criteria.
• Added 3D visualization of confusion matrix
• Added automatical (averaged) ROC curve visualization for AUC criterion.
• New plotter: Deviation.
• amongst others

Screenshots

New Operators:

• Performance
• ClassificationPerformance
• BinominalClassificationPerformance
• RegressionPerformance
• UserBasedPerformance
• SingleRuleWeighting
• MPCKMeans

Bugfixes:

Links