cTAKES Official Website Apache cTAKES Project Information page from ASF Abstract (JAMIA) Open Health Natural Language Processing (OHNLP) Consortium Strategic Health IT Advanced Research Projects (SHARP) Program SHARP Area 4 - Secondary Use of EHR Data The Automated Retrieval Console (ARC) Health Information Text Extraction (HITEx)) was developed as part of the i2b2 project. It is a rule-based NLP pipeline based on the GATE framework developed by Informatics for Integrating Biology and the Bedside. Computational Language and Education Research toolkit (cleartk) (No longer maintained) has been developed at the University of Colorado at Boulder, and provides a framework for developing statistical NLP components in Java.