The AIMSA conference series was ?rst conceived in 1984 as a gathering of AI researchersandstudentsfromEasternandCentralEurope.Sincethenthecon- rence has followed a biennial schedule of meetings in Bulgaria, attracting parti- pantsfromawidergeographicalarea.Today,20yearson, AIMSAisathoroughly international conference, with contributions from most European countries and some from as far a?eld as the United States, Mexico and Brazil. The AIMSA organizers are delighted to present you with another exciting program, coveringmostareasofArti?cialIntelligence.Inkeepingwithitsm- sion to inform the...