Dr. D.S Kalana Mendis is a Senior lecturer at Department of Information Technology, Advanced Technological Institute, Dehiwala, Sri Lanka. He obtained BSc (Hons.) from University of Kelaniya, Sri Lanka… He obtained his MPhil in Computer Science from Open University of Sri Lanka and obtained PhD in Engineering Technology (Fuzzy logic in Artificial Intelligence) from Open University of Sri Lanka. He is a Chartered Physicist. He is an editorial board member of American Journal of Artificial Intelligence. He has published more than 90 research publications and edited 1 book. He has reviewed many research papers in IEEE Transaction of Fuzzy systems, Journal of Intelligent Information Management, International Conference on Industrial Information Systems, and Journal of Soft Computing in Image processing. He received presidential research award for scientific research in 2014. He was a Chairman of Environment committee in Sri Lanka Association for Advancement of Sciences in 2017 and council member for Institute of Physics Sri Lanka in 2014. He is a Life member and council member of Royal Asiatic Society of Sri Lanka and engaging research work on archaeology, history of science and technology of Sri Lanka for national and also international forums. His research fields are fuzzy modeling, fuzzy sets and systems, knowledge engineering and Artificial Intelligence in general.