Notable Contributions
Gelenbe has contributed theoretical and applied research concerning the performance of multiprogramming computer systems, virtual memory management, data base reliability optimisation, distributed systems and network protocols. He carried out some of the first work on the adaptive control of computer systems, and published seminal papers on the performance analysis and optimisation of computer network protocols and on the use of diffusion approximations for network performance. He developed the mathematics of new product form queueing networks with negative customers and triggers known as "G-networks". He also introduced a new spiked stochastic neural network model known as the random neural network, developed its mathematical solution and learning algorithms, and applied it to both engineering and biological problems. His inventions include the design of the first random access fibre-optics local area network, a patented admission control technique for ATM networks, a neural network based anomaly detector for brain magnetic resonance scans, and the "cognitive packet network" routing protocol to offer quality of service to users.
From 1984 to 1986 he served as the Science and Technology Advisor to the French Secretary of State for Universities.
He founded the ISCIS (International Symposium on Computer and Information Sciences) series of conferences that since 1986 are held annually in Turkey to bring together Turkish computer scientists with their international counterparts. According to the Mathematics Genealogy project, Gelenbe has graduated 55 PhD students.
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