Practical applications for natural language processing in clinical research: The 2014 i2b2/UTHealth shared tasks.

•Capstone shared task for 8years of i2b2 challenges. Co-organized with UTHealth.•Four tracks: de-identification, risk factor extraction, software usability, and novel data use.•Participation from around the world, from academia and industry.•Data sets available for research beyond the lifetime of i2b2, at i2b2.org/NLP.