Improving Automatic Sentence Boundary Detection with Confusion Networks D Hillard author M Ostendorf author A Stolcke author Y Liu author E Shriberg author 2004-may 2 - may 7 text Proceedings of HLT-NAACL 2004: Short Papers Association for Computational Linguistics Boston, Massachusetts, USA conference publication hillard-etal-2004-improving https://aclanthology.org/N04-4018/ 2004-may 2 - may 7 69 72