iExplore: A Provenance-based Application for Exploring Biomedical Knowledge

Data source: The data source in the backend of iExplore includes concepts and relations from Biomedical Knowledge Repository (BKR). The BKR schema contains approximately two millions of concepts in Unified Medical Language System (UMLS) that are integrated from various vocabularies and knowledge bases. Beside the relations taken from UMLS, the BKR also includes the relations extracted from millions of PubMed abstracts published from 2000 to 2009. The relations from both UMLS and PubMed are represented in RDF format with additional metadata to annotate the data provenance.