(Thanks to Tobias Blanke for the link)

U-Compare is an integrated text mining/natural language processing
system based on the UIMA Framework, which provides access to a large
collection of ready-to-use interoperable natural language processing
components.

U-Compare is currently the world’s largest UIMA component repository. It
allows users to build complex NLP workflows via an easy drag-and-drop
interface, and makes visualization and comparison of the outputs of
these workflows simple.

U-Compare is the result of a collaboration the Tsujii Laboratory at the
University of Tokyo, the Center for Computational Pharmacology at the
University of Colorado, and the National Centre for Text Mining at the
University of Manchester.

For more information, please see the U-Compare website:
http://www.u-compare.org/