Abstract
The following quote was obtained by the news editors from the background informa tion supplied by theinventors: “With advent of a big data era, each device gene rates massive raw data in various forms everyday. The data is generated in a fo rm of an “island” and exists in every corner of the world. Currently, howto des ign a machine learning framework while meeting data privacy, security, and regul atory requirementsto enable an artificial intelligence (artificial intelligence , AI) system to jointly use data of devices moreefficiently and accurately beco mes an important issue in current development of artificial intelligence.