Risk Factors Extraction from Clinical Texts based on Linked Open Data Svetla Boytcheva author Galia Angelova author Zhivko Angelov author 2019-09 text Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2019) Ruslan Mitkov editor Galia Angelova editor INCOMA Ltd. Varna, Bulgaria conference publication boytcheva-etal-2019-risk 10.26615/978-954-452-056-4_019 https://aclanthology.org/R19-1019/ 2019-09 161 167