Background (II):decentralized jointly sparse optimization Decentralized computing in a network Distributed data in distributed agents no fusion center e Consideration of privacy,difficulty in data collection,etc Decentralized jointly sparse optimization Goal:agent i has y(i)and A(i),to recover x(i)through collaboration 1010 Background (II): decentralized jointly sparse optimization ◼ Decentralized computing in a network ⚫ Distributed data in distributed agents & no fusion center ⚫ Consideration of privacy, difficulty in data collection, etc Goal: agent i has y(i) and A(i), to recover x(i) through collaboration ◼ Decentralized jointly sparse optimization