Big Data recently has become a new ubiquitous term to describe large datasets that are challenging to store, search, share, visualize, and analyze. Effective management and analysis of the Big Data would bring great benefits and unique opportunities to the users. However, the conventional methods are limited on providing desirable operational functions on Big Data. The Big Data workshop 2013 (BigData’13) is to promote research works in this emerging area of Big Data-inspired computing, networks, systems, and applications. BigData’13, held in conjunction with CyberC 2013, aims to provide a leading forum for exchanging and sharing experiences, new ideas, and research results on broad topics on Big Data Research, Development, and Applications. It solicits high quality papers that illustrate novel Big Data models, architecture and infrastructure, management, search and processing, security and privacy, applications, surveys and industrial experiences. Authors of Big Data workshop 2013 are promoted to freely enjoy CyberC 2013 and Big Data Summits. Both of the events are co-sponsored and participated by a number of industry giants.