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This book constitutes the proceedings of the 4th International Conference on Decision Support Systems, ICDSST 2018, held in Heraklion, Greece, in May 2018. The main topic of this year´s conference was "Sustainable Data-Driven and Evidence Based Decision Support". The 15 papers presented in this volume were carefully reviewed and selected from 71 submissions. They were organized in topical sections named: decision support systems for a sustainable society; decision support systems serving the public; decision support systems in management and organization; and advances in decision support systems´ technologies and methods.

The EWG-DSS series of International Conference on Decision Support System Technology (ICDSST), starting with ICDSST 2015 in Belgrade, were planned to consolidate the tradition of annual events organized by the EWG-DSS in offering a platform for European and international DSS communities, comprising the academic and industrial sectors, to present state-of-the-art DSS research and developments, to discuss current challenges that surround decision-making processes, to exchange ideas about realistic and innovative solutions, and to co-develop potential business opportunities.

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Decision Support Systems for a Sustainable Society.- SIRPSS-Sustainable Industrial Site Redevelopment Planning Support System.- An Intelligent Multi-Agent System using Fuzzy Analytic Hierarchy Process and Axiomatic Design as a Decision Support Method for Refugee Settlement Siting.- Towards an Intelligent Integrated System for Urban Planning Using GIS and Cloud Computing.- An Ontology-based Decision Support Framework for Personalized Quality of Life Recommendations.- Decision Support Systems Serving the Public.- Critical Events and Critical Infrastructures: A System Dynamics Approach.- How to model Stakeholder participation for Flood Management.- Big Data Analytics to Improve the Decision-Making Process in Public Safety: A Case Study in Northeast Brazil.- An Interactive Learning Environment Based on System Dynamics Methodology for Sustainable Mobility Challenges Communication & Citizens´ Engagement.- Decision Support Systems in Management and Organizations.- Skills and Mindsets for an Analytically Innovative Organisation.- Computer Supported Team Formation.- A Group Decision-Making Model for Supplier Selection: the Case of a Colombian Agricultural Research Company. - Advances in Decision Support Systems´ technologies and methods.- SK-DSSy: how to integrate the YouTube platform in a cooperative decision support.- A DSS models for selection of Computer on Module based on PROMETHEE and DEX methods.- Unveiling hidden patterns in flexible medical treatment processes - A process mining case study.- A new function for ensemble pruning.

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