Information engineering is an important underpinning for techniques used in information and computational science and there are many unresolved problems worth studying. The (IEA 2012), which was held in Chongqing, China, from October 26-28, 2012, discusses the most innovative research and developments including technical challenges and social, legal, political, and economic issues. A forum for engineers and scientists in academia, industry, and government, the presents ideas, results, works in progress, and experience in all aspects of information engineering and applications.