WC3: Wikipedia Category Consistency Checker Based on DBPedia

Wikipedia is a free Internet encyclopedia that covers numerous topics and is maintained by voluntary editors. There have been several efforts to analyze the quality of Wikipedia´s content, specifically assessing textual content and user editorial behavior. However, there has been no specific analysis of the quality of structured data (e.g., category structures, attributes contained in infoboxes) in Wikipedia. DBPedia is one of a core part of Linked Open Data database which extracts structured information from Wikipedia. Since the quality of DBPedia depends on Wikipedia, it is beneficial to have a mechanism to keep a consistent style of writing of the structured data (metadata) within Wikipedia. In this paper, we propose a system WC3 (WC-triple: Wikipedia Category Consistency Checker) that uses DBPedia RDF-triple information to evaluate the consistency of the metadata related to the Wikipedia category information. We also illustrate examples of typicalinconsistencies that the system can assist in detecting.