August 22, 1945 |
|Institutions||University of Liège
Paris-Sud 11 University
New Jersey Institute of Technology
University of Central Florida
|Alma mater||Middle East Technical University
Polytechnic Institute of New York University
|Thesis||Stochastic automata with structural restrictions (1970)|
|Doctoral advisor||Edward J. Smith
Random neural network
Michael O. Rabin
Sami Erol Gelenbe is a Turkish computer scientist, engineer and applied mathematician who currently holds the Dennis Gabor Professorship at Imperial College. Best known for introducing the random neural networks and the eponymous G-networks, Gelenbe is the recipient of several awards, including the ACM SIGMETRICS Life-Time Achievement Award.
Gelenbe was born in Istanbul in 1945, to Italian-born Maria Sacchet and Turkish-born Yusuf Ali Gelenbe, a descendant of the 18th-century Ottoman mathematician Gelenbevi Ismail Efendi. As his father's job was in Ankara, Gelenbe moved there for his studies. He graduated from Ankara Koleji in 1962 and from the Middle East Technical University in 1966, winning the K.K. Clarke Research Award for work on "partial flux switching magnetic memory systems". Awarded a Fulbright Fellowship, he continued his studies at Polytechnic University, where he completed a Master's degree and a PhD thesis on "Stochastic automata with structural restrictions", under the supervision of Edward J. Smith.
After graduation he joined the University of Michigan as an Assistant Professor. In 1972, on leave from Michigan, he founded the Modeling and Performance Evaluation of Computer Systems research group at INRIA (France), and was a visiting lecturer at the University of Paris 13 University. In 1971 he was elected to the second Chair in Computer Science at the University of Liège, which he joined in 1973 while remaining a research director at INRIA. In 1973, he was awarded a Doctorat d'État ès Sciences Mathématiques from the Paris VI University with a thesis on "Modèlisation des systèmes informatiques", under Jacques-Louis Lions. In 1979, Gelenbe moved to the Paris-Sud 11 University where he co-founded the Laboratoire de Recherche en Informatique and its PhD Program, before joining Paris Descartes University in 1986.
Gelenbe moved back to the United States in 1991. Until 1993, he worked as a New Jersey State Endowed Professor at the New Jersey Institute of Technology and between 1993 and 1998 as Chaired professor and Head of the Department of Electrical and Computer Engineering at Duke University. In 1998, he moved to the University of Central Florida, where he founded the School of Electrical Engineering and Computer Science.
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.
Latest research interests
Gelenbe currently  works on energy efficient computer systems and self-aware networks, and on how to improve the performance of Digital Cities including models of economic interaction. His recent collaborations with biologists include Gene Regulatory Networks and Protein Sequence Alignment.
- Foreign Member of the Polish Academy of Sciences, 2013 
- Institution of Engineering and Technology Oliver Lodge Medal, 2010  
- Honorary Member of the Hungarian Academy of Sciences, 2010  
- ACM SIGMETRICS Award describes him "as the single individual who, over a span of 30 years, has made the greatest overall contribution to the field of Computer System and Network Performance Evaluation" 
- Knight Commander in the Order of the Star of Italy, or "Grande Ufficiale dell'Ordine della Stella d'Italia", 2007 
- Member of the Science Academy, Turkey 
- Member of the French Academy of Technologies or "Academie des Technologies" 
- Member of Academia Europaea 
- Docteur en Sciences "Honoris Causa", University of Liège, Belgium  
- Dottore Ingegnere "Honoris Causa", University of Rome Tor Vergata, Italy, 1996
- Doctor "Honoris Causa" from Boğaziçi University, Istanbul
- Commander of Merit of Italy (Commendatore in the "Ordine al Merito della Repubblica Italiana"), 2005 
- Chevalier des Palmes Academiques, France, 2003
- Officer of the Ordre National du Mérite of France, 2001
- Fellow of the Association for Computing Machinery (ACM), New York, USA, 2002 
- France Telecom Prize, one of the Grands Prix of the French Academy of Sciences, 1996 
- Parlar Foundation Science Award, Turkey, 1994 
- Chevalier de l'Ordre National du Merite, France, 1991
- Fellow of the Institute of Electrical and Electronics Engineers (IEEE), New York, USA, 1986 
- International Federation for Information Processing (IFIP) Silver Core Award, 1980 
- E. Gelenbe "On languages defined by linear probabilistic automata", Information and Control, 16(5):487–501, July 1970.
- E. Gelenbe "A realizable model for stochastic sequential machines", IEEE Trans. Comput. 20, 199–204 (1971).
- E. Gelenbe "On approximate computer system models", Journal of the ACM 22(2):261–269 (April 1975).
- E. Gelenbe and I. Mitrani "Analysis and synthesis of computer systems", Academic Press (June 1980), 239 pp., ISBN 0-12-279350-1, ISBN 978-0-12-279350-9.
- E. Gelenbe "On the optimum checkpoint interval", Journal of the ACM, 26(2):259–270, April 1979.
- E. Gelenbe "Product-Form queueing networks with negative and positive customers", Journal of Applied Probability, Vol. 28 (3): 656–663 (Sep., 1991).
- E. Gelenbe, Mao, Z.H., Li, Y.D. "Function approximation with spiked random networks,", IEEE Trans. on Neural Networks, 10 (1): 3–9, 1999.
- E. Gelenbe and G. Pujolle "Introduction to Queueing Networks", John Wiley & Sons, Inc. New York, USA, 1987 and 2000.
- E. Gelenbe, R. Lent and Z. Xu "Design and performance of a cognitive packet network", Performance Evaluation, 46, (2–3): 155–176, October 2001.
- E. Gelenbe and Hussain K.F. "Learning in the multiple class random neural network, " IEEE Transactions on Neural Networks, 13(6): 1257–1267, Nov. 2002.
- E. Gelenbe, Gellman, R. M. Lent, P. Liu and Pu Su "Autonomous smart routing for network QoS", Proc. International Conference on Autonomic Computing: 232–239, ISBN 0-7695-2114-2, 17–18 May 2004.
- J.-M. Fourneau and E. Gelenbe "Flow equivalence and stochastic equivalence in G-networks", doi:10.1007/s10287-003-0008-z, Computational Management Science, 1 (2): 179-192, July 2004.
- E. Gelenbe "Steady-state solution of probabilistic gene regulatory networks", Physical Review E, 76(1), 031903 (2007).
- E. Gelenbe "A Diffusion Model for Packet Travel Time in a Random Multi-Hop Medium", ACM Trans. on Sensor Networks, 3 (2), Article 10, June 2007.
- E. Gelenbe "Dealing with software viruses: a biological paradigm", Information Security Technical Reports 12: 242–250, Elsevier Science, 2007.
- E. Gelenbe, G. Sakellari and M. d'Arienzo "Admission of QoS aware users in a smart network", ACM Trans. on Autonomous and Adaptive Systems, 3(1), Idaho TAAS-07-0003, 2008.
- E. Gelenbe "Network of interacting synthetic molecules in equilibrium" Proc. Royal Society A 464:2219–2228, 2008.
- E. Gelenbe and I. Mitrani "Analysis and Synthesis of Computer Systems" World Scientiﬁc, Imperial College Press, Singapore and London, 2009.
- E. Gelenbe "Analysis of single and networked auctions", ACM Trans. on Internet Technology, 9 (2), 2009.
- E. Gelenbe "Steps toward self-aware networks", Communications ACM, 52 (7):66–75, July 2009.
- A. Berl, E. Gelenbe, M. Di Girolamo, G. Giuliani, H. De Meer, M. Quan Dang, and K. Pentikousis "Energy-eﬃcient cloud computing", Comp. J. 53 (7): 1045–1051, 2010.
- E. Gelenbe "Search in unknown random environments", Phys. Rev. E 82: 061112, 2010.
- E. Gelenbe and C. Morfopoulou "A framework for energy aware routing in packet networks", Comp. J., doi:10.1093/comjnl/bxq092, 2011.
- O. H. Abdelrahman and E. Gelenbe. Time and energy in team-based search. Phys. Rev. E, 87(3):032125, March 2013.
- Gaster, Adrian. The international authors and writers who's who. International Biographical Centre. ISBN 0-900332-45-X.
- Barria, Javier A. (2006). Communication networks and computer systems: a tribute to Professor Erol Gelenbe. Imperial College Press. pp. 1–8. ISBN 1-86094-659-3.
- "ACM SIGMETRICS Life-Time Achievement Award 2008".
- Erol Gelenbe's Carrier and Contributions, by Ufuk Caglayan
- "Biographicon: Erol Gelenbe". Retrieved 2011-01-29.
- "Minutes of Senate Meeting" (PDF). Imperial College London. 2006-12-13. Retrieved 2009-06-20.
- "Council: Staff Matters". Imperial College London. 2002-10-18. Retrieved 2009-06-20.
- Harrison, Peter (2009). "Turning Back Time – What Impact on Performance?". The Computer Journal 53 (6): 860. doi:10.1093/comjnl/bxp021.
- Çaglayan, P. U. (2005). "Erol Gelenbe’s Career and Contributions". Computer and Information Sciences - ISCIS 2005. Lecture Notes in Computer Science 3733. pp. 966–970. doi:10.1007/11569596_98. ISBN 978-3-540-29414-6.
- "Mathematics Genealogy Project". Retrieved 2011-01-29.
- "Engineering and Technology Magazine". Retrieved 2013-03-30.
- "ACM Ubiquity - An Interview with Erol Gelenbe: Practical Theories Make the World Go". Retrieved 2013-03-30.
- "Foreign Members - Division IV". Polish Academy of Sciences. Retrieved 12 November 2013.
- Chris Edwards (18 January 2011). "Profile: Professor Erol Gelenbe". IET. Retrieved 12 November 2013.
- "The IET Achievement Medal Winners 2013". IET. Retrieved 12 November 2013.
- Academy of Sciences "HAS General Assembly Elects New Honorary Members". Retrieved 12 November 2013.
- "Profile: Gelenbe, S. Erol". Hungarian Academy of Sciences. Retrieved 12 November 2013.
- "Erol Gelenbe Wins the 2008 SIGMETRICS Achievement Award". ACM SIGMETRICS. Retrieved 12 November 2013.
- Gelenbe, Erol. "Grande Ufficiale dell'Ordine della Stella d'Italia (già Stella della solidarietà italiana)" (in Italian). Presidenza della Repubblica. Retrieved 12 November 2013.
- "Members of the Science Academy". Bilim Akademisi. Retrieved 12 November 2013.
- "Fellows: Erol Gelenbe". Academie des Technologies. Retrieved 12 November 2013.
- "Member: Gelenbe, Erol". Academia Europaea. Retrieved 12 November 2013.
- "Séance académique de remise des insignes de Docteur Honoris Causa" (in French). Universite de Liege. 30 March 2006. Retrieved 12 November 2013.
- "DHC2006 : Présentation de M. Erol GELENBE" (in French). Universite de Liege. Retrieved 12 November 2013.
- Gelenbe, Erol. "Commendatore Ordine al Merito della Repubblica Italiana" (in Italian). Presidenza della Repubblica. Retrieved 12 November 2013.
- "ACM Fellows: Erol Gelenbe". ACM. Retrieved 12 November 2013.
- "Prix France Telecom: Laureats de L'Annee 2012" (in French). Academie des Sciences. Retrieved 12 November 2013.
- "Bugüne Kadar Ödül Alanlar: Bilim Ödülü" (in Turkish). ODTÜ Prof.Dr.Mustafa N.PARLAR Eğitim ve Araştırma Vakfı. Retrieved 12 November 2013.
- "Fellow Class of 1986". IEEE. Retrieved 12 November 2013.
- "Holders of the IFIP Silver Core Award (1974-2010)". IFIP. Retrieved 12 November 2013.
-  Erol Gelenbe at Imperial College
-  Interview published in ACM Ubiquity, 2002.
-  Part 1 of Interview published in ACM Ubiquity, 2010.
-  Part 2 of Interview published in ACM Ubiquity, 2010.
-  Erol Gelenbe's Publications as listed in the DBLP Computer Science Bibliography and his List of Collaborators (including his doctoral students).