Closed this issue 7 years ago · 3 comments
https://www.mitpressjournals.org/doi/pdf/10.1162/COLI_a_00077
http://wing.comp.nus.edu.sg/~linzihen/publications/acl2012.pdf
NP-rewrite: https://repository.upenn.edu/cgi/viewcontent.cgi?article=1768&context=cis_papers