Interpreting BLEU/NIST Scores: How Much Improvement do We Need to Have a Better System? Ying Zhang author Stephan Vogel author Alex Waibel author 2004-05 text Proceedings of the Fourth International Conference on Language Resources and Evaluation (LREC’04) Maria Teresa Lino editor Maria Francisca Xavier editor Fátima Ferreira editor Rute Costa editor Raquel Silva editor European Language Resources Association (ELRA) Lisbon, Portugal conference publication zhang-etal-2004-interpreting https://aclanthology.org/L04-1489/ 2004-05