The main research interests of Maria Leonilde Rocha Varela are in: Production Planning, Control and Optimization and in Collaborative Networks and Decision Making Models, Methods and Systems, along with Web Applications and Services for supporting Engineering and Production Management.
She has been improving international scientific collaborations, mainly in terms of projects and special issues proposals and publications with colleagues from other national and foreign institutions, such as: VSB-Technick Univerzita Ostrava; University of Belgrade; International Islamic University Malaysia; SimTech Simulation Technology; Malek Ashtar University of Technology; University of Macedonia; ED&F Man Commodities West Africa; University of Liverpool; Universidad de La Frontera; Universidade de Poznan; Toulouse University; Universidade de Liberec; University of Plymouth; Dalian University of Technology; VIT University; Erciyes University, Kayseri; University of Calgary; China University of Petroleum.
Moreover, her participation in editorial boards and special issues proposals in several international journals, has also been increased, for instance in the following journals: International Journal of Management and Fuzzy Systems; International Journal of Sustainability Management and Information Technologies; International Journal of Intelligent Enterprise; Journal of Decision Systems; International Journal of Decision Support Systems Technology; Management and Production Engineering Review; Mathematical Problems in Engineering; Journal of Robotics.
Her main scientific activity regarding international conferences is related to the participation as a member in organizing and scientific committees, namely in: HIS-Hybrid and Intelligent Systems; NaBIC- World Congress on Nature and Biologically Inspired Computing; CaSoN–International Conference on Computational Aspects of Social Networks; EWG–ICDSST-The International Conference on Decision Support System Technology; ISDA-The International Conference on Intelligent Systems Design and Applications; WorldCist-World Conference on Information Systems and Technologies; SoCPaR–International Conference on Soft Computing and Pattern Recognition Technologies and Tools; WICT– World Congress on Information and Communication Technologies; IAS–The International Conference on Information Assurance and Security; IBICA–the International Conference on Innovations in Bio-Inspired Computing and Applications; FCTA-International Conference on Fuzzy Computation Theory and Applications; MECAHITECH-International Conference on Innovations, Recent Trends and Challenges in Mechatronics, Mechanical Engineering and New High–Tech Products Development; Manufacturing-International Scientific-Technical Conference; MESIC-Manufacturing Engineering Society International Conference; IJCCI–International Joint Conference on Computational Intelligence; ViNOrg–International Conference on Virtual and Networked Organizations Emergent Technologies and Tools.
Also noteworthy is her participation in international networks, such as: Euro Working Group of Decision Support Systems (EWG-DSS); Institute of Electrical and Electronics Engineers (IEEE); System, Man, and Cybernetics Society (IEEE SMC); Industrial Engineering Network (IE Network); Institute of Industrial and Systems Engineers (IISE); Machine Intelligence Research Labs, Scientific Network for Innovation and Research Excellence (MirLabs).