On the Complexity of Alignment Problems in Two Synchronous Grammar Formalisms Anders Søgaard author 2009-06 text Proceedings of the Third Workshop on Syntax and Structure in Statistical Translation (SSST-3) at NAACL HLT 2009 Dekai Wu editor David Chiang editor Association for Computational Linguistics Boulder, Colorado conference publication sogaard-2009-complexity https://aclanthology.org/W09-2308/ 2009-06 60 68