Cognitive radio (CR) technologies have substantially improved the wireless communications performances, in a cost-effective way, by exploiting the underutilized licensed bands. However, there are several issues that still need to be addressed to take full advantages of the CR. Cognitive-workshop 2014 is to promote research works in the emerging cognitive-inspired fields to address the existing challenges including dynamic spectrum access, cognitive radio network design and optimization, software-defined and flexible radio architectures, multi-channel multi-user modeling, collaborative communications, cross layer design, routing method. In addition, cognitive computational modeling and theory from machines, e.g., expert systems, behavior recognitions, dynamical systems, and Bayesian modeling, are also in the scope of the workshop. It solicits high quality papers that illustrate novel cognitive methods, algorithms, theoretical analysis, modeling, research results, applications, projects, surveys and industrial experiences. It will serve as a forum for researchers to present and discuss the latest research results, novel cognitive techniques, concepts and analyses. Authors of Cognitive-workshop 2014 are promoted to freely enjoy CyberC 2014 and Big Data Summit. Both of the events are co-sponsored by a several CR related industry companies.