ACL 2010

July 15 and 16, 2010
Uppsala, Sweden


This workshop builds on four previous workshops on statistical machines translation:

This year's workshop will feature three shared tasks: a shared translation task for 8 pairs of European languages, a shared evaluation task to test automatic evaluation metrics, and a system combination task combining the output of all the systems entered into the shared translation task. This third task will be evaluated in the context of the NIST MetricsMATR evaluation, with results reported on the final day of the workshop.

The workshop will also feature scientific papers on topics related to MT. Topics of interest include, but are not limited to:

We encourage authors to evaluate their approaches to the above topics using the common data sets created for the shared tasks.


The first shared task which will examine translation between the following language pairs:

Participants may submit translations for any or all of the language directions. In addition to the common test sets the workshop organizers will provide optional training resources, including a newly expanded release of the Europarl corpora and out-of-domain corpora.

All participants who submit entries will have their translations evaluated. We will evaluate translation performance by human judgment. To facilitate the human evaluation we will require participants in the shared tasks to manually judge some of the submitted translations.

A more detailed description of the shared translation task (including information about the test and training corpora, a freely available MT system, and a number of other resources) will be available shortly (latest by December 1st). We also provide a baseline machine translation system, whose performance is comparable to the best systems from last year's shared task.


Participants in the system combination task will be provided with the 1-best translations from each of the systems entered in the shared translation task. We will endeavor to provide a held-out development set for system combination, which will include translations from each of the systems and a reference translation. Any system combination strategy is acceptable, whether it selects the best translation on a per sentence basis or create novel translations by combining the systems' translations. The quality of the system combinations will be judged alongside the individual systems during the manual evaluation, as well as scored with automatic evaluation metrics.


The third task is the shared evaluation task. Developers of automatic machine translation metrics are invited to submit their software to NIST for evaluation in the second NIST MetricsMATR evaluation. Metrics will be assessed on the MetricsMATR test set. They will also be assessed on output from the WMT shared translation task, for their ability to:

Participants in the shared evaluation task will use their automatic evaluation metrics to score the output from the translation task and the system combination task. They will be provided with the output from the other two shared tasks along with reference translations. We will measure the correlation of automatic evaluation metrics with the human judgments.


Submissions will consist of regular full papers of 6-10 pages, plus additional pages for references, formatted following the ACL 2010 guidelines. In addition, shared task participants will be invited to submit short papers (4-6 pages) describing their systems or their evaluation metrics. Both submission and review processes will be handled electronically.

We encourage individuals who are submitting research papers to evaluate their approaches using the training resources provided by this workshop and past workshops, so that their experiments can be repeated by others using these publicly available corpora.


Release of training data December 1, 2009
Test set distributed for translation task March 1, 2010
Results submissions for translation task March 5, 2010

Translations release for system combination   March 15, 2010
System combinations due March 26, 2010

Start of manual evaluation period March 31, 2010
End of manual evaluation April 30, 2010

Metric evaluation: metric installation March 26-May 14, 2010

Paper submissions (online) April 23, 2010
Notification of acceptance May 14, 2010
Camera-ready deadline June 4, 2010


Subscribe to to the announcement list for WMT10 by entering your e-mail address below. This list will be used to announce when the test sets are released, to indicate any corrections to the training sets, and to amend the deadlines as needed.

You can read past announcements on the Google Groups page for WMT10. Google Groups


Chris Callison-Burch (Johns Hopkins University)
Philipp Koehn (University of Edinburgh)
Christof Monz (University of Amsterdam)
Kay Peterson (NIST)
Omar Zaidan (Johns Hopkins University)


Hermann Ney (RWTH Aachen)



For questions, comments, etc. please send email to

supported by the EuroMatrixPlus project
funded by the European Commission
under Framework Programme 7