School of Computer Engineering Jinling Institute of Technology Nanjing 211169 China;
School of Intelligence Science and Control Engineering Jinling Institute of Technology Nanjing 211169 China;
School of Modern Post&Institute of Modern Posts Nanjing University of Posts and Telecommunications Nanjing 210003 China;
Stratifyd Inc. Charlotte NC 28208 USA;
Center of Information Construction and Management Nanjing Normal University of Special Education Nanjing 210038 China;
Multi-hop; localization; Elastic; Net; regularization; sparse;