Mappingpedia: A Collaborative Environment For R2rml Mappings

Most of Semantic Web data is being generated from legacy datasets with the help of mappings, some of which may have been specified declaratively in languages such as R2RML or its extensions: RML and xR2RML. Most of these mappings are kept locally in each organization, and to the best to our knowledge, a shared repository that would facilitate the discovery, registration, execution, request and analysis of mappings doesn't exist. Additionally, many R2RML users do not have sufficient knowledge of the mapping language, and would probably benefit from collaborating with others. We present a demo of MappingPedia, a collaborative environment for storing and sharing R2RML mappings. It is comprised of five main functionalities: (1) Discover, (2) Share, (3) Execute, (4) Request, and (5) Analyze.