This proceedings volume highlights the role and importance of Operational Research (OR) in the digital era and the underlying ICT challenges. The selected papers cover recent advances in all branches of operational research, mathematical modeling and decision making. It covers a wide range of key areas from digital economy, to supply chain management, and also finance. The book adopts an applied perspective that covers the contributions of OR in the broad field of business and economics linked with the discipline of computer science. The chapters are based on papers presented at the 6th International Symposium & 28th National Conference on Operational Research. Although the conference is organized by the Hellenic Operational Research Society (HELORS), the contributions in this book promotes international co-operation among researchers and practitioners working in the field.

Autorentext
Angelo Sifaleras is an Assistant Professor of Mathematical Programming - Network Optimization at the University of Macedonia, Department of Applied Informatics, School of Information Sciences, Greece, Thessaloniki. His research focuses on algorithms and models for network optimization problems. Currently, he serves as a member of the Editorial Board of the Yugoslav Journal of Operations Research (YUJOR) and he is also a senior member of ACM. Konstantinos Petridis received his Ph.D in Operational Research at Democritus University. His research interests and expertise lie in quantitative methods: mathematical programming models for optimization and design of supply chain networks, mathematical programming models for forest and agricultural scheduling and production and data envelopment analysis models for various scientific fields (bioenergy, computer science, scientometrics, energy). Furthermore, he is working on the field of e-waste management applying advanced forecasting techniques.****

Inhalt
Chapter 1. Final Energy Consumption Forecasting by Applying Artificial Intelligence Models.- Chapter 2. Game theoretic approaches in cloud and P2P networks: Issues and challenges.- Chapter 3. A proactive model for joint maintenance and logistics optimization in the frame of Industrial Internet of Things.- Chapter 4. Adoption of Digital Currencies: The Companies' Perspective.- Chapter 5. Unemployment Prediction in UK by Using a Feedforward Multilayer Perceptron.- Chapter 6. Performance Evaluation of Routing Protocols for BIG Data application.- Chapter 7. Vehicle Routing Problem for Urban Freight Transportation: A Review of the Recent Literature.- Chapter 8. Development of a framework for the assessment of soft skills in the ICT sector.- Chapter 9. Cloud Computing Adoption Decision in E-government.- Chapter 10. A unified framework for decision-making process on social media analytics.