Findings of the 2009 Workshop on Statistical Machine Translation
Chris Callison-Burch, Philipp Koehn, Christof Monz and Josh Schroeder
In: WMT 2009, March 30-31, 2009, Greece.

Abstract

This paper presents the results of the WMT09 shared tasks, which included a translation task, a system combination task, and an evaluation task. We conducted a large-scale manual evaluation of 87 machine translation systems and 22 system combination entries. We used the ranking of these systems to measure how strongly automatic metrics correlate with human judgments of translation quality, for more than 20 metrics. We present a new evaluation technique whereby system output is edited and judged for correctness.

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