UMLS to DBpedia Mapping

We are pleased to announce our work on mapping between UMLS and DBpedia concepts has been published in the “Journal of the American Medical Informatics Association” ( with the full dataset, online browser, and RESTful API available at This dataset includes 221 690 “exact match” relations, 26 276 “close match”, and 6 784 322 “see also” pairings. We hope you find this useful in facilitating effective interchange and integration between general knowledge databases (DBpedia) and those from (bio)medical ontologies (UMLS).