Preface -- Part I Introduction -- 1 Backgrounds and Literature Review -- Part II Three-way Risk Decision Based on Group Information Fusion -- 2 Three-way Group Decision -- 3 Three-way Group Decision under Linguistic Assessments -- 4 Three-way Group Decision via Joint Classification and Consensus -- Part III Three-way Risk Decision Driven by Group Social Network -- 5 Three-way Group Decision Based on Social Network -- 6 Three-way Group Decision Based on Large-scale Social Network -- 7 Three-way Group Decision Based on Hierarchical Social Network -- Part IV Three-way Risk Decision Driven by Group Complex Network -- 8 Sequential Three-way Group Decision Based on Multiple Networks.

This book delves deeply into the research progress on three-way risk decision for risk management under complex social environment. From the new perspective of collective wisdom, it systematically explores three-way group decision-making methods and practical applications by considering group information fusion, consensus reaching process, group social network and group complex network. This book intends to provide a reference for researchers, practitioners and graduate students in the fields of risk management and decision analysis.