http://u-compare.org/ It's an open source platform LGPL. (documentation, but no source code found)
For any UIMA component, an integrated platform of
- GUI for easy drag-and-drop workflow (UIMA CPE/component descriptor) creation
- comparison by U-Compare parallel component
- evaluation, statistics and visualizations
- no installation required, click "Start U-Compare" button below to try U-Compare now!