Abstract: In the last years various intelligent technologies and methodologies (ITM) have been proposed by the researchers in order to develop efficient intelligent Decision Support Systems for different medical tasks. ITM offer robust computational methods for accumulating, representing, changing, and updating knowledge (i.e. knowledge engineering) in intelligent systems. In particular they enable users with learning mechanisms that help to induce knowledge from raw data. ITM provide methods, techniques, and tools that can help solving diagnostic and prognostic problems in a variety of medical domains. ITM are used for the analysis of the importance of clinical parameters and their combinations for prognosis, e.g. prediction of disease progression; the extraction of medical knowledge of outcomes research; therapy planning and support; overall patient management.
This talk is devoted to discussion of current research of the knowledge engineering approaches and methodologies for developing intelligent Decision Support Systems .This paper presents some of the intelligent methodologies for managing and engineering knowledge in medical knowledge-based systems. Some of the results of the research that has been carried out by the author and his colleagues at the Medical Informatics and Knowledge Engineering Research Unit, Computer Science Department, Faculty of Computer and Information Sciences, Ain Shams University, Cairo, are discussed as well. The paper covers the following topics: (a) knowledge representation techniques from the knowledge engineering point of view; (b) expert systems methodologies, rule-based and case-based reasoning; (c) producing knowledge with intelligent data mining methodology; and (d) ontological engineering approach.

Brief Biography of the Speaker:
Prof. Dr. Abdel-Badeeh M Salem He is a Professor of Computer Science since 1989 at Faculty of Computer and Information Sciences ,Ain Shams University, Cairo-Egypt. He is a professor emeritus since October 2007 . He was a Director of Scientific Computing Center at Ain Shams University (1984-1990). His research includes intelligent computing, expert systems, medical informatics, and intelligent e-learning technologies. He has published around 200 papers in refereed journals and conference proceedings in these areas. He has been involved in more than 200 conferences and workshops as an Int. Program Committee , organizer and Session Chair. He is author and co-author of 15 Books in English and Arabic Languages.
He was one of the founders of the following events, First Egyptian Workshop on Expert Systems 1987, Int. Cairo Conference on Artificial Intelligence Applications in 1992 and Int. Conf. on Intelligent Computing and Information Systems 2002, and one of the main sustainers of annual Int. Romanian Internet Learning Workshop Project (RILW), 1997.
In addition he was Secretary of Egyptian Computer Society (1984-1990), Member of National Committee in Informatics-Academy of Scientific Research and Technology (1992-200), Member of Egyptian Committee in the Inter-Governmental Informatics Program, IIP-UNISCO, Paris (1988-1990) and Coordinator of the Annual International Conference for Statistics, Scientific Computing, and Social and Demographic Research (1983-1990). In addition he was a partner of a MEDCAMPUS Projects on Methodologies and Technologies for Distance Education in Mediterranean (1993-1995). In addition He is a Member of the Editorial Board of 15 international and national Journals in the following countries: Canada; Italy, Romania, Japan, Turkey, UK and Egypt. Also, He is member of many Int. Scientific Societies and associations in USA, UK, Switzerland, Austria, Canada and Egypt.