TY - GEN
T1 - Simple robust grammar induction with combinatory categorial grammars
AU - Bisk, Yonatan
AU - Hockenmaier, Julia
PY - 2012
Y1 - 2012
N2 - We present a simple EM-based grammar induction algorithm for Combinatory Categorial Grammar (CCG) that achieves state-of-the-art performance by relying on a minimal number of very general linguistic principles. Unlike previous work on unsupervised parsing with CCGs, our approach has no prior language-specific knowledge, and discovers all categories automatically. Additionally, unlike other approaches, our grammar remains robust when parsing longer sentences, performing as well as or better than other systems. We believe this is a natural result of using an expressive grammar formalism with an extended domain of locality.
AB - We present a simple EM-based grammar induction algorithm for Combinatory Categorial Grammar (CCG) that achieves state-of-the-art performance by relying on a minimal number of very general linguistic principles. Unlike previous work on unsupervised parsing with CCGs, our approach has no prior language-specific knowledge, and discovers all categories automatically. Additionally, unlike other approaches, our grammar remains robust when parsing longer sentences, performing as well as or better than other systems. We believe this is a natural result of using an expressive grammar formalism with an extended domain of locality.
UR - http://www.scopus.com/inward/record.url?scp=84868287219&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84868287219&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84868287219
SN - 9781577355687
T3 - Proceedings of the National Conference on Artificial Intelligence
SP - 1643
EP - 1649
BT - AAAI-12 / IAAI-12 - Proceedings of the 26th AAAI Conference on Artificial Intelligence and the 24th Innovative Applications of Artificial Intelligence Conference
T2 - 26th AAAI Conference on Artificial Intelligence and the 24th Innovative Applications of Artificial Intelligence Conference, AAAI-12 / IAAI-12
Y2 - 22 July 2012 through 26 July 2012
ER -