The limits of automatic summarisation according to ROUGE Natalie Schluter author 2017-04 text Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics: Volume 2, Short Papers Mirella Lapata editor Phil Blunsom editor Alexander Koller editor Association for Computational Linguistics Valencia, Spain conference publication schluter-2017-limits https://aclanthology.org/E17-2007/ 2017-04 41 45