Differentiable lower bound for expected BLEU score.

Vlad Zhukov Maksim Kretov

Published in: CoRR (2017)

Keyphrases

lower bound
objective function
upper bound
branch and bound algorithm
lower and upper bounds
optimal solution
branch and bound
machine translation
np hard
loss function
relative improvement
linear programming
worst case
word alignment
statistical machine translation
lower bounding
polynomial approximation