US Patent 9659043 Data system and method

A system and method for content sharing includes acquiring, by a processing device, a plurality of data objects from data sources, storing the plurality of data objects in a data warehouse, generating a high-level index that is shared by the plurality of data objects, generating a plurality of low-level indices that each provides a respective low-level index for a respective one of the plurality of data objects, and providing the plurality of data objects on the content sharing platform for query or search using the high-level index and the plurality of low-level indices.