| CLSP Homepage : Workshop Homepage | |
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| Workshop 2006 | Tuesday, May 13, 2008 |
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The objective of this JHU Workshop is the development of novel methods for statistical machine translation that improve the state of the art, specifically factored translation models, and lattice-based decoding methods. As part of this workshop, we will implement these techniques and distribute them in an open source toolkit. We propose to extend phrase-based statistical machine translation models using a factored representation. Current statistical MT approaches represent each word simply as their textual form. A factored translation approach replaces this representation with a feature vector for each word derived from a variety of information sources. These features may be the surface form, lemma, stem, part-of-speech tag, morphological information, syntactic, semantic or automatically derived categories, etc. This representation is then used to construct statistical translation models that can be combined together to maximize translation quality. We also propose to extend current MT decoding methods to process multiple, ambiguous hypotheses in the form of an input lattice. A lattice representation allows an MT system to arbitrate between multiple ambiguous hypotheses from upstream processing so that the best translation can be produced. During the workshop we will implement lattice decoding and run experiments with errorful ASR input. We will compare different lattice-based strategies against single-hypothesis input results. Find Details about the plans and progress of this project here and here. | |||
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Team Members: | |||
| Philipp Koehn | Team Leader | University of Edinburgh | pkoehn at inf dot ed dot ac dot uk |
| Marcello Federico | Senior Researcher | ITC-IRST | federico at itc dot it |
| Wade Shen | Senior Researcher | Lincoln Labs | swade at ll dot mit dot edu |
| Nicola Bertoldi | Senior Researcher | ITC-IRST | bertoldi at itc dot it |
| Chris Callison-Burch | Graduate Student | University of Edinburgh | callison-burch at ed dot ac dot uk |
| Richard Zens | Graduate Student | Aachen University | zens at i6 dot informatik dot rwth-aachen dot de |
| Hieu Hoang | Graduate Student | University of Edinburgh | H.Hoang at sms dot ed dot ac dot uk |
| Brooke Cowan | Graduate Student | MIT | brooke at csail dot mit dot edu |
| Ondrej Bojar | Graduate Student | Charles University | bojar at ufal dot mff dot cuni dot cz |
| Chris Dyer | Graduate Student | University of Maryland | redpony at umd dot edu |
| Alexandra Constantin | Undergraduate Student | Williams College | 07aec_2 at williams dot edu |
| Evan Herbst | Undergraduate Student | Cornell | evh4 at cornell dot edu |
| Christine Corbett Moran | Undergraduate Student | MIT | corbett at csail dot mit dot edu |
| The Center for Language and Speech Processing The Johns Hopkins University 3400 North Charles Street, Barton Hall Baltimore, MD 21218 | |||||
 | Telephone: (410) 516-4237 | | Fax: (410) 516-5050 | | E-mail: clsp@clsp.jhu.edu |