What is“ Big data Integration?” o Big data integration= Big data+ data integration Data integration: easy access to multiple data sources[DH[12 Virtual: mediated schema, query reformulation, link fuse answers Warehouse: materialized data, easy querying, consistency issues Big data in the context of data integration: still about the v's g Size: large volume of sources, changing at high velocity Complexity huge variety of sources, of questionable veracity Utility: sources of considerable valueWhat is “Big Data Integration?”  Big data integration = Big data + data integration  Data integration: easy access to multiple data sources [DHI12] – Virtual: mediated schema, query reformulation, link + fuse answers – Warehouse: materialized data, easy querying, consistency issues  Big data in the context of data integration: still about the V’s ☺ – Size: large volume of sources, changing at high velocity – Complexity: huge variety of sources, of questionable veracity – Utility: sources of considerable value 3