Before revision:  However, privacy concerns require the strict protection of a user's data which leads to a dilemma between pursuing better intelligent services and privacy preservation. To solve this dilemma, this paper develops a decentralized learning framework to enable proactive social care equipped with artificial intelligence and data protection.
After revision:  However, privacy concerns require the strict protection of a user's data become an isolated island and limits the predictive performance of standalone clients. To enable effective proactive social care equipped with artificial intelligence and data protection.