BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:A Gibbs Sampler for Phrasal Synchronous Grammar Induction - Juan P
 ino (University of Cambridge)
DTSTART:20100118T123000Z
DTEND:20100118T133000Z
UID:TALK22416@talks.cam.ac.uk
CONTACT:Diarmuid Ó Séaghdha
DESCRIPTION:At this session of the NLIP Reading Group we’ll be discussin
 g the following paper:\n\nPhil Blunsom\, Trevor Cohn\, Chris Dyer\, Miles 
 Osborne. 2009. "A Gibbs sampler for phrasal synchronous grammar induction"
 :http://aclweb.org/anthology-new/P/P09/P09-1088.pdf. In Proceedings of ACL
 -IJCNLP-09.\n\n*Abstract:* We present a phrasal synchronous grammar model 
 of translational equivalence. Unlike previous approaches\, we do not resor
 t to heuristics or constraints from a word-alignment model\, but instead d
 irectly induce a synchronous grammar from parallel sentence-aligned corpor
 a. We use a hierarchical Bayesian prior to bias towards compact grammars w
 ith small translation units. Inference is performed using a novel Gibbs sa
 mpler over synchronous derivations. This sampler side-steps the intractabi
 lity issues of previous models which required inference over derivation fo
 rests. Instead each sampling iteration is highly efficient\, allowing the 
 model to be applied to larger translation corpora than previous approaches
 .
LOCATION:GS15\, Computer Laboratory
END:VEVENT
END:VCALENDAR