14Th International Conference on the Principles of Knowledge Representation and Reasoning, Kr 2014, Date: 20 July 2014 through 24 July 2014, Sponsors: Artificial Intelligence Journal;Association for Logic Programming (ALP);et al.;European Coordinating Committee for Artificial Intelligence (ECCAI);Principles of Knowledge Representation and Reasoning, Incorporated (KR Inc.);Siemens AG Osterreich