The 4th International Congress on Engineering and Information (ICEAI 2015) will take place on 07-09 May, 2015 in Tokyo, Japan.The goal of this conference is to bring together researchers from academia to practitioners to share ideas, problems, and solutions. This conference will provide many opportunities for researchers to present the latest research findings and describe emerging technologies, new research problems, and directions in Engineering and Information issues. The conference seeks to contribute to presenting novel research results in all aspects of Engineering and Information.