The past decade has seen significant interest and progress made in national and international homeland security research. The science of Intelligence and Security Informatics (ISI) focuses on the development and use of advanced information technologies, including methodologies, models and algorithms, infrastructure, systems, and tools, for national/international and homeland security related applications through an integrated technological, organizational, and policy based approach. ISI also encompasses the areas of terrorism research, intelligence analysis as well as security-related public policy.
The first ISI event was the NSF/NIJ Symposium on Intelligence and Security Informatics organized in 2003 by Professor Hsinchun Chen and colleagues at the University of of Arizona. The ISI series also includes related conferences and workshops in Europe (EISIC) and Asia (PAISI)
Conference proceedings have been published in Springer Lecture Notes in Computer Science (LNCS) as well as by IEEE.