Call for Papers Special Issue on Complex System Modeling and Simulation Research on index system of sustainable development of telecom operator Call for Papers Special Issue on Internet of Things Designing Carbon emissions TraDing FinanCial reporTing sysTem in China Analysis on diversified socialized relief system for solving environmental infringement Construction practice of market system for energy saving renovation of existing buildings Software System Evolution Analysis Method Based on Algebraic Topology IoT-Based Cost Saving Offloading System for Cellular Networks EVchain: An Anonymous Blockchain-Based System for Charging–Connected Electric Vehicles Call for Papers Special Section on Deep Learning for Natural Language Processing