RapidMiner (formerly known as YALE) is a flexible Java environment for knowledge discovery in databases, machine learning, and data mining. It allows experiments to be made up of a large number of arbitrarily nestable operators, described in XML files which are created with RapidMiner’s graphical user interface.
It features an easy-to-use visual environment, a plugin mechanism, and high-dimensional plotting, as well as an extension mechanism that makes it possible to integrate new operators and adapt the system to your personal requirements. The modular operator concept of RapidMiner allows the design of complex nested operator chains for a huge number of learning problems in a very fast and efficient way (rapid prototyping).
A command line version is included.
RapidMiner is ideal for analyzing data generated by high-throughput instruments, e.g. proteomics, genotyping and mass spectrometry.
Key Features
- Extract, transform, load (ETL), a data warehousing process.
- Data warehousing.
- Data Mining.
- OLAP.
- Business Intelligence in Java.
- Machine learning library WEKA fully integrated.
- 500+ modules including: extract, transform, load (ETL), data mining, data analysis + Weka, statistical forecasting, preprocessing, validation, visualization, OLAP, business intelligence.
- Knowledge discovery processes are modeled as operator trees.
- Internal XML representation ensures standardized interchange format of data mining experiments.
- Scripting language allows for automatic large-scale experiments.
- Multi-layered data view concept ensures efficient and transparent data handling.
- Graphical user interface, command line mode (batch mode), and Java API for using RapidMiner from your own programs.
- Plugin and extension mechanisms.
- Plotting facility offering a large set of high-dimensional visualization schemes for data and models.
- Applications include text mining, multimedia mining, feature engineering, data stream mining and tracking drifting concepts, development of ensemble methods, and distributed data mining.
- Java API (application programming interface) to ease usage of RapidMiner from your own programs.
Website: rapidminer.com
Support: GitHub Code Repository
Developer: RapidMiner GmbH
License: GNU Affero General Public License v3.0

RapidMiner is written in Java. Learn Java with our recommended free books and free tutorials.
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