CLARK v1 is a machine-learning classification software created by NC TraCS and CoVar Applied Technologies to enable computable phenotyping in unstructured data. CLARK’s user-friendly interface makes natural language processing (NLP) an accessible option for searching free-text clinical notes. This page includes user instructions and technical documentation for CLARK v1.
For instructions on CLARK v2, go here.
For a conceptual guide to CLARK including research applications and interpretation of results, go here.
Both CLARK v1 and v2 are free and available for download here.
CLARK runs best on Windows machines with 16 GB of RAM, and does not require special infrastructure to operate. Processing may take longer with 8GB of RAM.