Exploiting Structured Data, Negation Detection and SNOMED CT Terms in a Random Indexing Approach to Clinical Coding Aron Henriksson author Martin Hassel author 2011-09 text Proceedings of the Second Workshop on Biomedical Natural Language Processing Guergana Savova editor Kevin Bretonnel Cohen editor Galia Angelova editor Association for Computational Linguistics Hissar, Bulgaria conference publication henriksson-hassel-2011-exploiting https://aclanthology.org/W11-4202/ 2011-09 3 10