Wuyi Yue is a Doctor of Engineering in Applied Mathematics and Physics. She has worked for years in research and as a professor in her field. She is currently a professor at Konan University in Kobe, Japan,  in the Department of Information Sciences and Systems Enginnering and the Faculty of Science and Engineering. She is also the Director of Intelligent Information and Communications Techonology. She has served as the organizing chair of many committees and international conferences, as well as published numerous monographs and journal articles. Yutaka Takahashi has actively worked in the field of computer science, communication networks, operations research and systems science. He pioneered a technique for a nalzying the performance of queuing networks and was the founding co-chairman of the IFIP WG6.3 for Performance Evaluation of Communication Systems. He has organized and served on committees of hundreds of international conferences, and he has edited several books in his field. Hideaki Takagi is a professor at the Institute of Policy and Planning Sciences at the University of Tsukuba, Japan. He received his doctorate of Physics from the University of California, Los Angeles, which he attended with the support of the IBM Japan Overseas Scholarship Program and a contract with the Defense Advanced Research Projects Agency. He has worked in research and academia for years, and is curently the editor of the Performance Evaluation journal and the Queueing Systems journal.