Base data management infrastructure and core data model

Data extraction and management infrastructure to collect data from online social environments and make them available to the rest of the project. This includes the core data model of the project (integrating existing models into a linked data-compliant vocabulary), creating extractors for specific sources of data such as the logs of GNOSS, Facebook’s activity streams or LinkedIn skills and education APIs, and deploying a data management platform consisting of a triple store and a data endpoint for supporting convenient use by other processes in the project.