There are currently no challenges in progress.
You may click on a challenge below to learn more about it, but only previously registered participants of a given challenge may access its corresponding set of files.
To access our publicly available data sets, including the n2c2 NLP data sets that originally came out of challenges held during the i2b2 project, visit Data Sets.
If you have your own annotations on n2c2 (formerly i2b2) data that you would like to contribute to the research community, you may submit them at any time through n2c2 Data Upload: Community generated annotations. Thank you!