Learning to Extract International Relations from Political Context
Brandon M. Stewart
Noah A. Smith
Proceedings of ACL 2013.
Data and software (Github)
Slides (Univ. of Maryland talk)
-- these are probably the best to read for a quick overview.
Very short version slides (SOCS)
Since a number of people found the model diagram in the paper confusing, the second and third slides below show an alternative view (using vector-valued graphical/plate notation).