Fotis Liotopoulos
Computer Architecture graduate from University of Patras, with MSc and PhD in Computer Engineering from University of Wisconsin-Madison. Currently working as Research & Tech. Development Director at Virtual Trip Ltd.
| Headline: | Engineer |
| Website: | http://Liotopoulos.info |
| Skills: | C/C++, Computer Engineering, Engineering, HTML / CSS, Java, Languages and Platforms, Software Engineering, System Administration, Unix, Web design, Web Development, Windows |
| Location: | Thessaloniki, Greece |
| Groups: | ESYNE |
| Interested in: | Consulting opportunities, Finding team mates, Meeting new people, Providing services to startups, Trading services |
| Schools: | University of Wisconsin System - Madison |
WORK EXPERIENCE
| Employer: | Virtual Trip Ltd. |
| Position: | Research & Tech. Development Director |
| Time period: | August 2006 - Present |
| Employer: | Hellenic Open University (E.A.P.) |
| Position: | Teaching Associate-Lecturer |
| Time period: | September 2001 - Present |
| Description: | Teaching “Digital Systems, Computer & Microprocessor Architectures” and “Computer Networks” (graduate and undergraduate courses). |
| Employer: | Virtual Trip Ltd. |
| Position: | Research Director, 50% appointment |
| Time period: | August 2005 - July 2006 |
| Employer: | Aristotle Univ. of Thessaloniki, Electrical & Computer Engineering dept. |
| Position: | Adjunct Lecturer (PD407/80) |
| Time period: | August 2005 - July 2006 |
| Description: | Teaching 1st year undergraduate “Computer Systems”. |
| Employer: | Aristotle Univ. of Thessaloniki, Electrical & Computer Engineering dept. |
| Position: | Adjunct Lecturer (PD407/80) |
| Time period: | February 2005 - July 2005 |
| Description: | Teaching 3rd year undergraduate “Computer Architecture”. |
| Employer: | ., CITY College, (affiliated Institute of the Univ. of Sheffield, UK), Thessaloniki, Greece |
| Position: | (Senior) Lecturer, Computer Science dept. |
| Time period: | August 2003 - August 2004 |
| Description: | Teaching undergraduate & graduate courses. |
| Employer: | Research Academic Computer Technology Institute (C.T.I.), Athens branch |
| Position: | Computer & Informatics Engineer – Researcher ‘C’ (assist .prof. level) |
| Time period: | September 1997 - July 2003 |
| Description: | Manager of R&D Unit 4 (“Computer & Communication Systems Architectures”) |
| Employer: | Univ. of Wisconsin-Madison |
| Position: | Research Assistant, Electrical & Computer Engineering dept. |
| Time period: | August 1994 - February 1996 |
| Description: | 3 semesters, with prof. S. Chalasani. |
| Employer: | Univ. of Wisconsin-Madison |
| Position: | Teaching Assistant, Electrical & Computer Engineering dept. |
| Time period: | August 1993 - November 1995 |
| Description: | 6 semesters, ECE-353, ECE-352, ECE-315, ECE/CS-752, ECE/CS-757, with prof. S. Chalasani, K. Saluja, P. Ramanathan, D.L. Dietmeyer, C. Kime, R. Jain. |
| Employer: | Univ. of Wisconsin-Madison |
| Position: | Project Assistant, Neurophysiology dept., Medical School |
| Time period: | August 1992 - April 1993 |
| Description: | 2 semesters, with prof. D. Geisler |
| Employer: | Univ. of Wisconsin-Madison |
| Position: | Teaching Assistant, Computer Sciences dept. |
| Time period: | August 1989 - April 1992 |
| Description: | 6 semesters, CS-132, Computer Lab h/w & s/w management, with prof. E. Desautels. |
| Employer: | Computer Technology Institute (CTI) and Univ. of Patras, Greece |
| Position: | Research Associate |
| Time period: | August 1988 - April 1989 |
| Description: | M.O.P. Committee, Digital Systems & Telecommunications Lab. organization, with ast. prof. N. Kanellopoulos. |
| Employer: | E-NA R&D S.A., Athens, Greece, for the 28th Int’l Chess Olympiad |
| Position: | Project Engineer |
| Time period: | August 1988 - November 1988 |
EDUCATION
| University: | University of Wisconsin System - Madison |
| Time period: | 1996 |
| Degree: | Computer Engineering, PhD |
| University: | University of Wisconsin System - Madison |
| Time period: | 1991 |
| Degree: | Computer Architecture, MSc |
PUBLICATIONS
| Articles: | Technical Reports & Articles:
1. F.K. Liotopoulos, "Towards Tomorrow: The Fourth Generation of Mobile Networks", The Economist Magazine (Greek weekly edition of the "Kathimerini" daily national newspaper, no. 31, pp 53-55, Sept. 2006. 2. F.K. Liotopoulos, “SPU: Switched Processing Unit”, CITY College, Technical Report, Feb. 2004. 3. F.K. Liotopoulos, “Solid-Connection Rearrangeability for 3-Stage Clos Networks in the Multirate Environment”, CTI Tech. Rep. TR99-12-03, Dec. 2003. 4. F.K. Liotopoulos, M. Houtzeos, S. Retzekas, N. Karousos and N. Kanellopoulos, “Performance Analysis of a Distributed Call Admission Control Scheme for Parallel Video-on-Demand Servers”, CTI Tech. Rep. TR2001-09-01, Sept. 2001. 5. “The Y2K Problem”, article in the Sunday (national) paper “To Vima tis Kyriakis”, 9/8/98. |
| Papers: | Journals: ( Avg. #authors per paper = 1.43)
1. F.K. Liotopoulos, “A Simulation Study of ‘Retreat FIFOs’ for the HoL Blocking Problem”, to appear in the Heterogeneous Networks (HetNets04) special issue Journal on Computer Networks, edited by D.D. Kouvatsos, (to be published in) 2008. 2. F.K. Liotopoulos, “Split-Connection Rearrangeably Nonblocking Operation of 3-Stage Multirate Clos Networks”, Computer Communications, Elsevier Science, vol.25, issue 17, pp.1584-1595, Nov. 2002. (Revised CTI Tech. Rep. TR99-12-02). 3. M.D. Logothetis and F.K. Liotopoulos, “A Batch-type, Time-true ATM network Simulator – Design for Parallel Processing”, Int’l Journal of Communication Systems, vol.15, issue 8, pp.713-739, Oct. 2002. 4. W. Kabacinski and F.K. Liotopoulos, “Multirate Non-Blocking Generalised 3-Stage Clos Switching Networks”, IEEE Trans. on Communications, vol.50, no.9, pp.1486-1494, Sept. 2002. (CTI Tech. Rep. TR99-12-01). 5. F.K. Liotopoulos, “Issues on Gigabit Switching, using 3-Stage Clos Networks”, Journal of Informatica, special issue on “Gigabit Networking”, vol. 23, no.3, pp.335-346, Sept.1999. 6. F.K. Liotopoulos and S. Chalasani, “Semi-Rearrangeably Nonblocking Operation of Clos Networks in the Multirate Environment”, IEEE Trans. on Networking, vol.4, no.2, pp.281-291, Apr. 1996. 7. F.K. Liotopoulos, “Sparse Generalized Hypergrids for Performance Scalability”, in “Lecture Notes in Computer Science”, vol. 817, pp.526-538, Springer-Verlag, 1994. [Awarded Best "young, single-author" paper award in the “PARLE-94 Conference on Parallel Architectures and Languages”, Athens, Greece, July 1994]. |
| Books: | Book Chapters: ( Avg. #authors per paper = )
1. F.K. Liotopoulos, “Scalable, Electro-Optical Clos Switch Architectures”, invited Book Chapter, in the book “Optical Switching / Networking and Computing for Multimedia Systems”, edited by Guizani & Battou, ISBN: 0-8247-0707-9, published by Marcel Dekker, New York, 2002. 2. F.K. Liotopoulos and S. Chalasani, “Semi-Centralized Routing Algorithms for 3-stage Clos Networks”, in the book "Performance Modelling and Evaluation of ATM Networks", pp. 147-176, vol. 1, edited by D. D. Kouvatsos, published by Chapman & Hall, London 1995. 3. F.K. Liotopoulos and S. Chalasani, “Strictly Nonblocking Operation of 3-stage Clos Switching Networks” (ext. ver.), in the book “Performance Modelling and Evaluation of ATM Networks”, vol. 2, edited by D. D. Kouvatsos, published by Chapman & Hall, London 1996. |
INFORMATION
| Memberships: | - I.E.E.E. (Institute of Electrical and Electronic Engineers) Student Member (1991-1996), Member (1997-2002), Senior Member (2002-today).
- A.C.M. (Association of Computing Machinery), Student Member (1991-1996), Member since 1997. - B.C.S. (British Computing Society), Member since 2004. - A.M.S. (American Mathematical Society), Member 1998-2004. - SIGMA-XI (Scientific Research Society), Full Member since 1996. - T.E.E. (The Technical Chamber of Greece), Member since 1988. - P.S.D.M.H.Y.P. (Panhellenic Assoc. of Computer & Informatics Engineers), Member since 2002. - E.P.E. (Panhellenic Association of Computer & Information Scientists), Member since 2004, General Secretary (since 2007). - USA-Alumni of Northern Greece (Association of Greek Graduates from American Universities), Member since 1997. - H.S.A.-U.W.M. (Hellenic Student Association of the University of Wisconsin-Madison), Member 1989-1996, Vice-President 1993-1994, 1994-1995, President 1995-1996. - U.W.A. (Univ. of Wisconsin Alumni), Member since 1996. - HKN (Eta Kappa Nu, Engineering Society), Student member 1995-1996. - C.T.I. Employee Union, (Vice-president), 11/2000-3/2003. - IEEE Technical Committee on Communications Switching & Routing (TCCSR) (member). - IEEE Technical Committee on Computer Architecture (TCCA) (member). - IEEE Technical Committee on Supercomputing Applications (TCSA) (member). - Working Committee of S.E.P.V.E. (the Association of Information Technology Companies of Northern Greece) for the Digital Strategy of the Region of Northern Greece, member (2007-2009). - Member (with Virtual Trip Ltd.) of the NEM (Networked and Electronic Media) European Technology Platform (ETP), NMCD (Next Multimedia Content Distribution) Cluster and NEM SEC (Security) Cluster, (since 2007). - Member (with Virtual Trip Ltd.) of the NESSI (Networked European Software & Services Initiative) European Technology Platform (ETP), TSD WG (Trust, Security & Dependability Working Group), (since 2007). |
| Awards: | - 12/06: Second best academic achievement (diploma grade: 9.51) of all times (1981-2006), Comp. Eng. & Informatics dept., Univ. of Patras, Greece.
- 9/02: IEEE Senior Member (in 7% of ~377,000 IEEE Members). - 3/04: “Certificate of Appreciation for Ten-Year Membership”, IEEE Communications Society. - 2/00: Best Researcher Award of R&D Unit 4, C.T.I. - 2/00: Praise (award) for the successful completion of the OASIS Project (Trading System of the Athens Stock & Derivatives Exchange). - 7/94: Best Paper Award for single authors under 30 years old, PARLE-94 Int’l Conference, Athens, Greece. - 9/93-5/94: Vilas Fellowship, awarded based on academic merit. - 1/96, 9/95, 1/95, 9/94: 4 Awards for educational achievement, Technical Improvement Program, dept. of Engineering Professional Development, College of Engineering, UW-Madison. - 9/88-5/89: Bodosakis Foundation Scholarship. - '83-'87: 4 scholarships from the (Greek) National Scholarship Foundation (I.K.Y.). - '84-'85, '85-'86, '87-'88: 3 scholarships from the Technical Chamber of Greece (T.E.E.). - '81-'82: Award (Praise) from the Greek Mathematidcal Society (E.M.E.) for participation and achievement in the National Competition on Mathematics. - '77-'83: 11 High School awards for excellence (6 "aristeeon") and best achievement in class (5 "vraveeon"). - 1984: First Prize in a National Software Competition, organized by the "Computer For All" magazine. |
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Virtual Trip Ltd
Virtual Trip is the vendor of Solo Gateway, a powerful unified communications solution offering complete computational & communication infrastructure for small & medium enterprises and home users.