Semantic Discourse Segmentation and Labeling for Route Instructions Nobuyuki Shimizu author 2006-07 text Proceedings of the COLING/ACL 2006 Student Research Workshop Marine Carpuat editor Kevin Duh editor Rebecca Hwa editor Association for Computational Linguistics Sydney, Australia conference publication shimizu-2006-semantic https://aclanthology.org/P06-3006/ 2006-07 31 36