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Wren N. G. Thornton
Researcher at Johns Hopkins University
Publications - 8
Citations - 336
Wren N. G. Thornton is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Machine translation & Parsing. The author has an hindex of 6, co-authored 8 publications receiving 335 citations.
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Proceedings ArticleDOI
Joshua: An Open Source Toolkit for Parsing-Based Machine Translation
Zhifei Li,Chris Callison-Burch,Chris Dyer,Sanjeev Khudanpur,Lane Schwartz,Wren N. G. Thornton,Jonathan Weese,Omar F. Zaidan +7 more
TL;DR: In this article, a synchronous context free grammars (SCFGs) are used for statistical machine translation. And the toolkit achieves state-of-the-art performance on the WMT09 French-English translation task.
Proceedings Article
Joshua: An open source toolkit for parsing-based machine translation
Zhifei Li,Chris Callison-Burch,Chris Dyer,Juri Ganitkevitch,Sanjeev Khudanpur,Lane Schwartz,Wren N. G. Thornton,Jonathan Weese,Omar F. Zaidan +8 more
TL;DR: Joshua implements all of the algorithms required for synchronous context free grammars (SCFGs): chart-parsing, n-gram language model integration, beam-and cube-pruning, and k-best extraction, and uses parallel and distributed computing techniques for scalability.
Journal ArticleDOI
Decoding in Joshua: Open Source, Parsing-Based Machine Translation
TL;DR: A scalable decoder for parsing-based machine translation that implements all the essential algorithms described in (Chiang, 2007) and (Li and Khudanpur, 2008b): chart-parsing, n-gram language model integration, beam- and cube-pruning, and k-best extraction is described.
Proceedings Article
Joshua 2.0: A Toolkit for Parsing-Based Machine Translation with Syntax, Semirings, Discriminative Training and Other Goodies
Zhifei Li,Chris Callison-Burch,Chris Dyer,Juri Ganitkevitch,Ann Irvine,Sanjeev Khudanpur,Lane Schwartz,Wren N. G. Thornton,Ziyuan Wang,Jonathan Weese,Omar F. Zaidan +10 more
TL;DR: Support for translation grammars with a rich set of syntactic nonterminals, ability for external modules to posit constraints on how spans in the input sentence should be translated, lattice parsing for dealing with input uncertainty, and a semiring framework that provides a unified way of doing various dynamic programming calculations are described.
Proceedings ArticleDOI
Demonstration of Joshua: An Open Source Toolkit for Parsing-based Machine Translation
Zhifei Li,Chris Callison-Burch,Chris Dyery,Juri Ganitkevitch,Sanjeev Khudanpur,Lane Schwartz,Wren N. G. Thornton,Jonathan Weese,Omar F. Zaidan +8 more
TL;DR: Joshua implements all of the algorithms required for translation via synchronous context free grammars: chart-parsing, n-gram language model integration, beam- and cube-pruning, and k-best extraction, and suffix-array grammar extraction and minimum error rate training.