Keyword Extraction Using Unsupervised Learning on the Document’s Adjacency Matrix Eirini Papagiannopoulou author Grigorios Tsoumakas author Apostolos Papadopoulos author 2021-06 text Proceedings of the Fifteenth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-15) Alexander Panchenko editor Fragkiskos D Malliaros editor Varvara Logacheva editor Abhik Jana editor Dmitry Ustalov editor Peter Jansen editor Association for Computational Linguistics Mexico City, Mexico conference publication papagiannopoulou-etal-2021-keyword 10.18653/v1/2021.textgraphs-1.9 https://aclanthology.org/2021.textgraphs-1.9/ 2021-06 94 105