Emergence of correlation in domain knowledge based on frequency evolution Crossing the Growth Threshold:Service-Based Economy,Knowledge Process and Reshaping of Efficiency Model An Artificial Stock Market Based on Soft Control Theory Trajectory Big Data Processing Based on Frequent Activity Local Community Detection Based on Network Motifs Market-Based Solutions to Overcapacity:Principles and Measures Automatic Modulation Recognition Based on CNN and GRU Research on layout of China leisure agriculture based on sustainable development Ecotourism and EnvironmEntal Ethics: BasEd on chinEsE confucianism and taoism philosophy Regulation and decision system of water, fertilizer and salt in salinized farmland based on WebGIS