DBpedia is a crowd-sourced community effort to extract structured information from Wikipedia and make this information available on the Web. DBpedia provides a complementary service to Wikipedia by exposing knowledge (from 130 Wikimedia projects, in particular the English Wikipedia, Commons, Wikidata and over 100 Wikipedia language editions) in a quality-controlled form compatible with tools covering ad-hoc structured data querying, business intelligence & analytics, entity extraction, natural language processing, reasoning & inference, machine learning services, and artificial intelligence in general.