Overview on NLP Techniques for Content-based Recommender Systems for Books Melania Berbatova author 2019-09 text Proceedings of the Student Research Workshop Associated with RANLP 2019 Venelin Kovatchev editor Irina Temnikova editor Branislava Šandrih editor Ivelina Nikolova editor INCOMA Ltd. Varna, Bulgaria conference publication berbatova-2019-overview 10.26615/issn.2603-2821.2019_009 https://aclanthology.org/R19-2009/ 2019-09 55 61