The document outlines the proceedings of the 4th International Summer School on the applications of informatics, mathematics, and physics held in Kiev, Ukraine, from August 5 to 16, 2009. It discusses various advanced methods in mathematical optimization, continuous optimization, and their relevance in fields such as financial mathematics, actuarial sciences, and biomedical engineering. The document highlights the significance of optimization in planning and traffic control issues in developing countries, particularly in the Asian Pacific region.