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The exact purpose of the value 2.718 is what I am not sure of.As far as I know,
the value is used for preferring the hypothesis with less phrases tothe one
that use more phrases(words) for the same coverage of the source sentence
duringthe prefix cost comparison inside priority queue( for the hyps that
covers the same source range ).for example ) phrase_1 + phrase_2 + phrase_3 )to
prefer hyp1 to hyp2 by multiplying hyp1 by 2.718.This is how I understand the
use of the value, since longer phrase has empirically better translationthan
the one made up of word-based translation.Is there any one who can confirm my
belief, or to correct my conclusion?p.s. Is 2.718 the Euler's number? If it is,
why is the weight determined as such?
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