Multi-level Bootstrapping For Extracting Parallel Sentences From a Quasi-Comparable Corpus Pascale Fung author Percy Cheung author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication fung-cheung-2004-multi https://aclanthology.org/C04-1151/ 2004-aug 23–aug 27 1051 1057