This book contains extended and revised versions of a set of selected papers from two workshops
organized by the Euro Working Group on Decision Support Systems (EWG-DSS) which were held in
Thessaloniki Greece and Rome Italy in May and July 2013. From a total of 45 submissions 15
papers were accepted for publication in this edition after being reviewed by at least three
internationally known experts from the EWG-DSS Program Committee and external invited
reviewers. The selected papers are representative of current research activities in the area of
operational research and decision support systems focusing on topics such as decision-making
using social networks and Web resources spatio-temporal Web-based decision making group
support systems technical legal and social aspects of decision making knowledge management
and decision support systems business intelligence and data warehousing and negotiation
support systems.
