The present book includes extended and revised versions of a set of selected papers from the Fifth International Joint Conference on Knowledge Discovery, Knowledge Engineering, and Knowledge Management (IC3K 2013), held in Vilamoura, Algarve, Portugal, during September 19–22, 2013. IC3K was sponsored by the Institute for Systems and Technologies of Information, Control and Communication (INSTICC) and held in Vilamoura, Algarve, Portugal and was organized in cooperation with the AAAI Association for the Advancement of Artificial Intelligence, DICODE Mastering DataIntensive Collaboration and Decision Making Project, TIMBUS Digital Preservation for Timeless Business Processes and Services, iKMS Information & Knowledge Management Society, ACM SIGMIS ACM Special Interest Group on Management Information Systems, ACM SIGIR ACM Special Interest Group on Information Retrieval, ACM SIGART ACM Special Interest Group on Artificial Intelligence and ERCIM European Research Consortium for Informatics and Mathematics. IC3K is also technically cosponsored by APRP Associação Portuguesa de Reconhecimento de Padrões. The main objective of IC3K is to provide a point of contact for scientists, engineers, and practitioners interested in the areas of Knowledge Discovery, Knowledge Engineering, and Knowledge Management. IC3K is composed of three colocated complementary conferences, each specialized in one of the aforementioned main knowledge areas. Namely: