Hi, the last time I tested this number is here (Table 7): http://www.statmt.org/wmt13/pdf/WMT12.pdf
However, there may be benefits to bigger phrases in more narrow domains where translations follow stricter guidelines, rather than the news sets tested here. -phi On Thu, Mar 31, 2016 at 3:43 PM, Hieu Hoang <hieuho...@gmail.com> wrote: > > > On 31/03/2016 13:58, Vincent Nguyen wrote: > > Hello, > > > > Does someone have some support to this (found in the doc) : > > > > Maximum Phrase Length > > > > The maximum length of phrases is limited to 7 words. The maximum phrase > > length impacts the size of the phrase translation table, so shorter > > limits may be desirable, if phrase table size is an issue. Previous > > experiments have shown that performance increases only slightly when > > including phrases of more that 3 words. > > > > Summary > > > > --max-phrase-length -- maximum length of phrases entered into > > phrase table (default 7) > > > > > > If there is no major improvement above 3, why is the default 7, and is > > there a benchmark somewhere ? > it may not be major improvements, but even minor improvements are > important in some cases. Unless there's a good reason for changing the > default, it's too much hassle to change it. > > You'll have to make sure the regression tests still works, and answer > all the queries on the mailing list about why it's changed. > > > > > > Thanks > > Vincent. > > _______________________________________________ > > Moses-support mailing list > > Moses-support@mit.edu > > http://mailman.mit.edu/mailman/listinfo/moses-support > > > > _______________________________________________ > Moses-support mailing list > Moses-support@mit.edu > http://mailman.mit.edu/mailman/listinfo/moses-support >
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