Textual Properties and Task-based Evaluation: Investigating the Role of Surface Properties, Structure and Content Albert Gatt author François Portet author 2010-07 text Proceedings of the 6th International Natural Language Generation Conference John Kelleher editor Brian Mac Namee editor Ielka van der Sluis editor Association for Computational Linguistics conference publication gatt-portet-2010-textual https://aclanthology.org/W10-4206/ 2010-07