Decision Support Systems IV - Information and Knowledge Management in Decision Processes Euro Working Group Conferences, EWG-DSS 2014, Toulouse, France, June 10-13, 2014, and Barcelona, Spain, July 13-18, 2014, Revised Selected and Extended Papers - Linden, Isabelle; Liu, Shaofeng; Dargam, Fátima; E. Hernández, Jorge (Springer International Publishing : Imprint: Springer, 2015)