Large scale language independent generation using thematic hierarchies Nizar Habash author Bonnie Dorr author 2001-sep 18-22 text Proceedings of Machine Translation Summit VIII Bente Maegaard editor Santiago de Compostela, Spain conference publication habash-dorr-2001-large https://aclanthology.org/2001.mtsummit-papers.26/ 2001-sep 18-22