Centrality Measures for Non-Contextual Graph-Based Unsupervised Single Document Keyword Extraction Natalie Schluter author 2014-07 text Proceedings of TALN 2014 (Volume 2: Short Papers) Philippe Blache editor Frédéric Béchet editor Brigitte Bigi editor Association pour le Traitement Automatique des Langues Marseille, France conference publication schluter-2014-centrality https://aclanthology.org/F14-2012/ 2014-07 455 460