Dmitry Ustalov editor Swapna Somasundaran editor Alexander Panchenko editor Fragkiskos D Malliaros editor Ioana Hulpuș editor Peter Jansen editor Abhik Jana editor 2020-12 Association for Computational Linguistics Barcelona, Spain (Online) text conference publication textgraphs-2020-graph https://aclanthology.org/2020.textgraphs-1.0/