| | |
Summary: Variational Decoding for Statistical
Machine Translation
Zhifei Li, Jason Eisner, and Sanjeev Khudanpur
Center for Language and Speech Processing
Computer Science Department
Johns Hopkins University
1
Monday, August 17, 2009
Spurious Ambiguity
· Statistical models in MT exhibit spurious
ambiguity
· Many different derivations (e.g., trees or
segmentations) generate the same translation string
· Regular phrase-based MT systems
· phrase segmentation ambiguity
· Tree-based MT systems
· derivation tree ambiguity
2
Monday, August 17, 2009
Spurious Ambiguity in Phrase Segmentations
|
