This three-volume set constitutes the refereed proceedings of the International Conference on Computational Science and its Applications. These volumes feature outstanding papers that present a wealth of original research results in the field of computational science, from foundational issues in computer science and mathematics to advanced applications in almost all sciences that use computational techniques.

Workshop on Computational Geometry and Applications (CGA 07).- Workshop on Data Storage Device and Systems (DS2 07).- Workshop on Molecular Simulations Structures and Processes (MOSSAP 07).- Workshop on Virtual Reality in Scientific Applications and Learning (VRSAL 07).- Workshop on Middleware Support for Distributed Computing (MSDC 07).- Workshop on Pattern Recognition and Ubiquitous Computing (PRUC 07).- Workshop on Computational Linguistic (CL 07).- Workshop on PULSES - Logical, Technical and Computational Aspects of Transformations and Suddenly Emerging Phenomena (PULSES 07).- Workshop on Computational Intelligence Approaches and Methods for Security Engineering (CIAMSE 07).- Workshop on Integrated Analysis and Intelligent Design Technology (IAIDT 07).- Workshop on Ubiquitous Applications and Security Service (UASS 07).- Workshop on Modelling of Location Management in Mobile Information Systems (MLM 07).- Workshop on Optimization: Theories and Applications (OTA 07).- Workshop on Digital Content Security and Management of Distributed Computing (DCSMDC 07).- Workshop on Intelligent Image Mining (IIM 07).- Workshop on Advances in Web Based Learning (AWBL 07).