This is source code of smatch, an evaluation tool for AMR (Abstract Meaning Representation).
The code was mostly developed during 2012-2013, and has undergone many fixes and updates. It is now hosted on github for better collaboration.
More details and updates about AMR and smatch can be found in USC/ISI's AMR site: http://amr.isi.edu/index.html
Last update: 2016/11/14.