ISR develops, applies and teaches advanced methodologies of design and analysis to solve complex, hierarchical, heterogeneous and dynamic problems of engineering technology and systems for industry and government. ISR is a permanent institute of the University of Maryland, within the Glenn L. Martin Institute of Technol- ogy/A. James Clark School of Engineering. It is a National Science Foundation Engineering Research Center. Web site http://www.isr.umd.edu IR INSTITUTE FOR SYSTEMS RESEARCH TECHNICAL RESEARCH REPORT A Model Reference Adaptive Search Algorithm for Global Optimization by Jiaqiao Hu, Michael C. Fu, Steven I. Marcus TR 2005-81