School of Geographic and Biologic Information;
Nanjing University of Posts and Telecommunications;
Nanjing 210003;
China;
Smart Health Big Data Analysis and Location Services Engineering Laboratory of Jiangsu Province;
Nanjing 210003;
China;
Department of Psychiatry;
the Affiliated Brain Hospital of Nanjing Medical University;
Nanjing 210029;
China;
Jiangsu Health Vocational College;
Nanjing 211800;
China;
School of Computer Science and Engineering;
Nanjing University of Science and Technology;
Nanjing 210094;
China;
two-dimensional horizontal visibility graph; brain aging; structural magnetic resonance imaging; network structure entropy;