THANASIS G. PAPAIOANNOU

NETWORK ECONOMICS AND SERVICES LABORATORY

DEPARTMENT OF COMPUTER SCIENCE

ATHENS UNIVERSITY OF ECONOMICS AND BUSINESS

EMAIL pathan@aueb.gr

URL nes.aueb.gr/~pathan

CELL (+30) 6944 386589

Research Interests

• Incentive mechanisms in electronic and telecommunication environments (e-commerce, grids, peer-to-

peer, social networks, wireless ad hoc/mesh networks): reputation and trust mechanisms, game-theory

• Wireless (ad hoc, sensor, mesh) networking: (cooperative) routing, power-aware network formation and

packet scheduling, QoS, performance, transport protocols

• Network security and trust: botnet detection and propagation, rootkits, execution workflows

• Telecommunication network economics and services, QoS, intelligent agents

Education

5/01 –

12/06

Ph.D., Dept. of Computer Science, Athens University of Economics and Business (AUEB),

Awarded with Distinction

Ph.D. Thesis: “Accounting architectures and mechanisms for providing the right incentives in

telecommunication environments”

Adviser: Prof. George D. Stamoulis

Thesis Advisory Committee: Prof. Costas Courcoubetis, Prof. George Polyzos

Examination Committee: Assoc. Prof. D. Gritzalis, Prof. E. Flitzanis, Prof. E. Koutsoupias, Assist.

Prof. V. Vassalos

9/98 –

9/00

M.Sc., Computer Science Department, University of Crete, Greece

Main Areas: Networks and Telecommunications, Parallel and Distributed Systems

Master Thesis: “Design and implementation of an architecture for the efficient SLA selection and

provision in DiffServ networks”

Advisers: Assist. Prof. George D. Stamoulis, Dr. Stelios Sartzetakis, Researcher, ICS-FORTH

9/93 –

9/98

B.Sc., Computer Science Department, University of Crete, Greece

Diploma Thesis: “Issues and protocols for mobility support at the IP level”

Adviser: Assist. Prof. George D. Stamoulis

Industrial Placement (six months), Telecom. and Networks Division of the Institute of Computer

Science of the Foundation for Research and Technology Hellas (ICS- FORTH), graded with Honors

Honours and Scholarships

• Service Commendation, Cyber Defense Directorate, Hellenic National Defense General Staff, 2008

• Technical Committee Member: 42-HICSS (2009), ACM ValueTools 2008, IEEE AP2PC 2008, ComP2P

2008, ACM ICEC 2008, IEEE AP2PC 2007, ACM ICEC 2007

• Paper Citations: over 80 citations (excluding self-citations) according to Google Scholar (May 2008).

• Regular reviewer for Elsevier Journals Computer Communications and Grid Computing

• Reviewer for multiple scientific conferences and journals, including Transactions on Networking, Journal

of Selected Areas in Communications, Computer Networks, Infocom, PIMRC, CCGrid, Networking

• M.Sc. Fellowship (Sept. 1998 – Oct. 2000) from the Institute of Computer Science, Foundation of

Research and Technology – Hellas (ICS-FORTH)

• Scholarship for excellent academic performance in the Department of Computer Science, University of

Crete, Greece in 1993-1994 from the Greek National Fellowship Foundation (I.K.Y.)

Academic Experience

• February 2008 – June 2008: Visiting Professor in the Postgraduate program of the Department of

Computer Science, AUEB. Taught Networks and Network Security with hands-on labs on penetration

testing and programming projects on sophisticated network attacks.

• March 2007 – August 2007: Visiting Professor in Department of Computer Science, AUEB. Taught

Distributed Systems at undergraduate level.

• February 2007 – June 2007: Visiting Professor in the Postgraduate program of the Department of

Computer Science, AUEB. Taught Distributed Systems at postgraduate level.

• September 2001 – June 2006: Advised through to successful completion 4 MSc theses in the Department

of Computer Science, AUEB in the general area of network services and incentives. Subjects: SLA

negotiation algorithms for complex services, techno-economic analysis of broadband access technologies,

trust inference in overlays, reputation in grids.

• September 2001 – February 2006: Teaching Assistant in the Department of Computer Science, AUEB in

the following courses: “Performance Analysis of Systems and Networks” (Spring 2006), “Compilers”

(Spring 2004 and 2005), “Operating Systems” (Spring 2002 and 2003), “Introduction to Computer

Science” (Fall 2001-2005).

• October 1998 – June 2000: Teaching Assistant in the Department of Computer Science, University of

Crete in courses: “Computer Networks” (Fall 1998 and 1999), “C Programming” (Spring 1999), and

“Advanced Distributed Systems” (Spring 2000).

Journal Publications

[j5] Th. G. Papaioannou and G. D. Stamoulis. Achieving Truthful Rating and High Performance

Equilibria in Electronic Marketplaces. This paper is an extension of [c8] along with new results on

high performance equilibria. Submitted for journal publication to ACM Transactions on Internet

Technology, 2008.

[j4] Th. G. Papaioannou and G. D. Stamoulis. An Incentives' Mechanism for Truthful Feedback in Peer-

to-Peer Systems. This paper is a combination of [c4] and [c5] along with new results. Submitted for

journal publication to ACM Transactions of Knowledge and Data Engineering, 2008.

[j3] Th. G. Papaioannou and G. D. Stamoulis. Reputation-based Policies that Provide the Right Incentives

in Peer-to-Peer Environments. Computer Networks (Special Issue on Management in Peer-to-Peer

Systems: Trust, Reputation and Security) (Acceptance Rate: 13.3%), Elsevier, vol. 50, issue 4, pp.

563-578, 2006.

[j2] Th. G. Papaioannou and G. D. Stamoulis. Design of a charging and accounting architecture for QoS-

differentiated VPN services to mobile users, Computer Communications, Elsevier, vol. 27, issue 4, 1

March 2004, pp. 364-373.

[j1] Th. G. Papaioannou, S. Sartzetakis, and G. D. Stamoulis. Efficient agent-based selection of DiffServ

SLAs over MPLS networks within the ASP service model. Journal of Network and Systems

Management, Special Issue on Management of Converged Networks, Springer, vol. 10, issue 1,

March 2002, pp. 63-90.

Conference Publications

[c9] Th. G. Papaioannou and G. D. Stamoulis. Reputation-based Estimation of Individual Performance in

Grids. In Proc. of IEEE CCGRID 2008, Lyon, France, May 2008.

[c8] Th. G. Papaioannou and G. D. Stamoulis. Achieving Honest Ratings with Reputation-based Fines in

Electronic Markets. IEEE INFOCOM 2008 (Acceptance Rate: 21%), Phoenix, AZ, April 2008.

[c7] Th. G. Papaioannou and G. D. Stamoulis. Enforcing Truthful-Rating Equilibria in Electronic

Marketplaces. In Proc. of IEEE ICDCS Incentive-Based Computing, Lisbon, Portugal, July 2006.

[c6] V. Bintzios, Th. G. Papaioannou and G. D. Stamoulis. An Effective Approach for Accurate

Estimation of Trust of Distant Information Sources in the Semantic Web. In Proc. of the IEEE ICPS

Security, Privacy and Trust in Pervasive and Ubiquitous Computing, Lyon, France, June 2006.

[c5] Th. G. Papaioannou and G. D. Stamoulis. Optimizing an Incentives' Mechanism for Truthful

Feedback in Virtual Communities. AAMAS Workshop on Agents and Peer-to-Peer Computing,

Utrecht, The Netherlands, July 2005. A revised version has been published in Lecture Notes in

Artificial Intelligence, Springer, vol. 4118.

[c4] Th. G. Papaioannou and G. D. Stamoulis. An Incentives' Mechanism Promoting Truthful Feedback in

Peer-to-Peer Systems. In Proc. of IEEE/ACM CCGRID 2005 (Workshop on Global P2P Computing),

May 2005. (Cited in the Reputation Mechanisms chapter of the Elsevier Handbook on Economics

and Information Systems, 2006.)

[c3] Th. G. Papaioannou and G. D. Stamoulis. Effective Use of Reputation in Peer-to-Peer Environments.

In Proc. of IEEE/ACM CCGRID 2004 (Workshop on Global P2P Computing), April 2004.

[c2] Th. G. Papaioannou and G. D. Stamoulis. “Design and Implementation of a Charging and Accounting

Architecture for QoS-differentiated VPN Services to Mobile Users. In Proc. of QofIS/ICQT 2002,

Zurich, Switzerland, October 2002.

[c1] Th. G. Papaioannou, S. Sartzetakis, and G. D. Stamoulis. Efficient agent-based selection of DiffServ

SLAs over MPLS networks. In Proc. of SPIE International Symposium on Information Technologies

2000 (Program on Internet Performance and Control of Network Systems), Boston, USA, November

2000, Proceedings of SPIE, Vol. 4211.

Professional and Research Experience

CYBER DEFENSE DIRECTORATE, HELLENIC NATIONAL DEFENSE GENERAL STAFF ANALYST

AND SOFTWARE DEVELOPER, November 2007 to May 2008

• As part of my 1-year service in the Greek military, developed, and consulted on the development of a

number of software applications in the area of TCP/IP network security.

KEY TECHNICAL CONTRIBUTOR in a wide variety of major European and national projects, representing

the Network Economics and Services Lab of AUEB:

• 2006-2008: GridEcon (IST-2006-033634). Enable grid markets for computational resources. Role in

project: Design of trust-aware VO formation and scheduling mechanisms in computational grids. URL:

http://www.gridecon.eu

• 2006: GRNET internal project. Research of Usage and Impact of EDET2. Role in project: Lead

researcher and technical manager of a 3-person team for techno-economic analysis of alternative network

infrastructures and (O&M, upgrade) cost recovery methods by means of charging for the Greek NREN.

URL: http://edet2.cti.gr/

• 2005-2006: Eurobank multimedia broadband services. Role in project: Analysis of requirements for

multimedia broadband services, network design for deployment and cost analysis of the proposed

solution for Eurobank bank.

• 2004: e-Sharing (IST-2001-33325). Develop a pan-European e-Marketplace. Role in project: Design and

implementation of intelligent matching of offers with requests and of a personalized recommendation

system. I successfully defended the project results in the final audit. URL: http://esharing.intranet.gr

• 2002-2004: MMAPPS - Market Management of Peer-to-Peer Services (IST-2001-34201). Role in project:

Investigate and implement reputation-based mechanisms for market management so that cooperation

between peers can be encouraged without damaging the community-oriented structure of peer-to-peer

architectures. URL: http://www.mmapps.info

• 2002-2003: OTE S.A. national project. ADSL Broadband Services. Role in project: Estimation of

demand, composition of broadband services, estimation of cost recovery charging, business modelling,

and techno-economic analysis of ADSL broadband services. URL: https://ote-abs.iti.gr

• 2000-2002: VESPER – Virtual Home Environment for Service Personalization and Roaming Users (IST-

1999-10825). Role in project: Design and implement an accounting architecture and a charging scheme

for adaptive services for a Virtual Home Environment (VHE) over heterogeneous networks.

URL: http://cordis.europa.eu/fetch?ACTION=D&CALLER=PROJ_IST&QF_EP_RPG=IST-1999-10825

• 2001-2003: INTERNODE – Interworking of Nomadic Multi-domain Services (IST-1999-20117). Role in

project: Design and implement an accounting architecture and a charging scheme for services over VPN

to nomadic users. I successfully defended the project results in the final audit.

URL:http://cordis.europa.eu/fetch?ACTION=D&CALLER=PROJ_IST&QF_EP_RPG=IST-1999-20117

• 2000-2002: M3I - Market Managed Multiservice Internet (IST-1999-11429). Role in project: Design,

implement and trial a next generation system which enables Internet resource management through

market forces, and specifically, by enabling differential charging for multiple levels of service. URL:

http://www.m3i.org

SENIOR DEVELOPER for INTRACOM S.A., External Partner:

• 2001-2002: European project VESPER (see above). I implemented the core of the project’s distributed

platform (CORBA over OSA Parlay) and the Web access to the services.

KEY TECHNICAL CONTRIBUTOR for Institute of Computer Science of FORTH in:

• 1998-2000: MONTAGE: MObile iNTelligent AGEnts in Accounting, Charging, and Personal Mobility

(AC325). Role in project: Apply agent technology to design and implement the complete project platform

for service provisioning in a telecommunications environment that involves mobile users and multiple

competing and co-operating service retailers.

URL:http://cordis.europa.eu/infowin/acts/rus/projects/ac325.htm

DEVELOPER for Forthnet S.A.:

• 1998-1999: Key member of a 3-person development team that implemented the billing application for

dialup users of Forthnet S.A.

Professional Skills

• Experience and proven effectiveness in carrying out critical development goals

• Lead research teams on networking, distributed and economics-aware systems projects

• Deep understanding of R&D issues in networking, in distributed systems and their tangent to economics

• Proven experience in mechanism design for providing incentives

• Extensive knowledge of TCP/IP, IEEE 802.11, ATM protocol suites

• Selected analytical skills: Stochastic processes, game theory, dynamic/integer programming

• Selected programming languages, tools and middleware: Java core (expert), C++, Prolog, Python,

Mathematica, NS-2, COMNET, MPI, CORBA, UML, JXTA, JSP, Web Services, Javascript, IPtables

References

Prof. George D. Stamoulis,

Dept. of Computer Science, AUEB,

e-mail: gstamoul@aueb.gr

Prof. Costas Courcoubetis,

Dept. of Computer Science, AUEB,

e-mail: courcou@aueb.gr

Prof. George Polyzos,

Dept. of Computer Science, AUEB,

e-mail: polyzos@aueb.gr

Capt. Dionysios Antonopoulos, H.N.

Director, Cyber Defense Directorate

Hellenic National Defense General Staff

Kostas Zygourakis, Business Development Consultant,

Intracom Defense Electronics

e-mail: Konstantinos.Zygourakis@gmail.com