FLINS, an acronym originally for Fuzzy Logic and Intelligent Technologies in Nuclear Science, is now extended into a well-established international research forum to advance the foundations and applications of computational intelligence for applied research in general and for complex engineering and decision support systems. The principal mission of FLINS is bridging the gap between machine intelligence and real complex systems via joint research between universities and international research institutions, encouraging interdisciplinary research and bringing multidiscipline researchers together. FLINS 2014 is the eleventh in a series of conferences on computational intelligence systems. The conference will be held in João Pessoa (Paraiba), Brazil, the 2nd greenest city in the world, located in the Eastermost point of Americas. It follows the successful previous FLINS Conference since 1994. FLINS 2014 will be again included in the ISI proceedings as previous ones. Special issues of SCI indexed journals will be devoted to a strict refereed selection of extended papers.