Advancement of Decision Support Systems, Complex Systems and Empirical Studies Based on the Fifteenth ICMSEM Proceedings -- Residual Neural Network Based on Attention Mechanism for Visibility Estimation of Fog Figure -- Autonomous Control and Monitoring of On-site In-network Storage Systems in Remote Environments to Mitigate Floods -- Using Dynamic Search Mandatory Genetic Algorithm to Solve the University Course Timetabling Problem Considering Walking Distance -- Multi-Criteria Evaluation of Rumor Refuting Platform's Refuting Capacity with Hesitant Fuzzy Judgments -- Quality Analysis Using Motif Discovery in Small Data Sets -- Motif Analysis in Internet of the Things Platform for Wind Turbine Maintenance Management -- Scheme Evaluation of Junxi-I Small Hydro-PV Hybrid System Using FAHP-TOPSIS Approach -- Parallel Assembly Lines with Heterogeneous Workforce: A Cost-Driven Mathematical Model and Simulated Annealing Approach -- A Mathematical Model for Multi-Trip Home Health Care Routing Problem with Time Windows.

This book gathers the proceedings of the fifteenth International Conference on Management Science and Engineering Management (ICMSEM 2021) held on August 1-4, 2021, at the University of Castilla-La Mancha (UCLM), Toledo, Spain. The proceedings contains theoretical and practical research of decision support systems, complex systems, empirical studies, sustainable development, project management, and operation optimization, showing advanced management concepts and demonstrates substantial interdisciplinary developments in MSEM methods and practical applications. It allows researchers and practitioners in management science and engineering management (MSEM) to share their latest insights and contribution. Meanwhile, it appeals to readers interested in these areas, especially those looking for new ideas and research directions.