A Constrained Viterbi Relaxation for Bidirectional Word Alignment Yin-Wen Chang author Alexander M Rush author John DeNero author Michael Collins author 2014-06 text Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Kristina Toutanova editor Hua Wu editor Association for Computational Linguistics Baltimore, Maryland conference publication chang-etal-2014-constrained 10.3115/v1/P14-1139 https://aclanthology.org/P14-1139/ 2014-06 1481 1490