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ACL
2012
13 years 9 months ago
Robust Conversion of CCG Derivations to Phrase Structure Trees
We propose an improved, bottom-up method for converting CCG derivations into PTB-style phrase structure trees. In contrast with past work (Clark and Curran, 2009), which used simp...
Jonathan K. Kummerfeld, Dan Klein, James R. Curran
ACL
2012
13 years 9 months ago
Private Access to Phrase Tables for Statistical Machine Translation
Some Statistical Machine Translation systems never see the light because the owner of the appropriate training data cannot release them, and the potential user of the system canno...
Nicola Cancedda
ACL
2012
13 years 9 months ago
Tokenization: Returning to a Long Solved Problem - A Survey, Contrastive Experiment, Recommendations, and Toolkit -
We examine some of the frequently disregarded subtleties of tokenization in Penn Treebank style, and present a new rule-based preprocessing toolkit that not only reproduces the Tr...
Rebecca Dridan, Stephan Oepen
ACL
2012
13 years 9 months ago
Learning Better Rule Extraction with Translation Span Alignment
This paper presents an unsupervised approach to learning translation span alignments from parallel data that improves syntactic rule extraction by deleting spurious word alignment...
Jingbo Zhu, Tong Xiao, Chunliang Zhang
ACL
2012
13 years 9 months ago
MIX Is Not a Tree-Adjoining Language
The language MIX consists of all strings over the three-letter alphabet {a, b, c} that contain an equal number of occurrences of each letter. We prove Joshi’s (1985) conjecture ...
Makoto Kanazawa, Sylvain Salvati