AIT Community / Faculty / Research Scientists / Andreas Stergiou

CONTACT INFORMATION Athens Information Technology 19.5 Km Markopoulo Avenue, 19002 Peania, Attiki, Greece Phone: +30 210 6682751 Fax: +30 210 6682703 E-mail: aste@ait.edu.gr

STUDIES
March 2005 – June 2008: “Techno-Economic Systems” Master’s program, offered jointly by the National Technical University of Athens, the University of Athens and the University of Piraeus.

August 2003 – December 2004: MSIN Master’s program (Master of Science in Information Networking) offered by Carnegie Mellon University in collaboration with Athens Information Technology (ΑΙΤ).

• Thesis Subject: “Elastic Bunch Graph Matching Face Recognition: Performance and Comparison with Subspace Projection Methods”, Supervisor: Associate Professor A. Pnevmatikakis.

September 1998 – July 2003: Graduate of the Electronic & Computer Engineering Department of the National Technical University of Athens (NTUA), with specialization in Electronics & Control Systems Design. GPA: 8.42/10.00 (Very Good).

• Thesis Subject: “Design of a 0.35μm CMOS Analog Integrated RF Mixer”, Supervisor: Assistant Professor I. Papananos.

WORK EXPERIENCE
June 2008 – now: Researcher for the Autonomic & Grid Computing (AGC) Group of Athens Information Technology (AIT).

• Work on two industrial projects for Intralot S.A., (a) development of image processing software for reading and decoding of lottery tickets using a camera, and (b) implementation of a platform for virtual horse racing applications.
• Work in the scope of the EU-funded HERMES – Cognitive Care and Guidance for Active Aging Project (FP7-216709), contributing to the project deliverable D4.1, ‘Initial HERMES Audio and Video Processing Technologies’.
• Work in the scope of the EU-funded My-e-Director 2012 - Real-Time Context-Aware and Personalized Media Streaming Environments for Large Scale Broadcasting Applications Project (FP7-215248), contributing to the project deliverable D3.2, ‘Environment Analysis Module’.
• Contribution to the software prototyping of AIT’s submission to the TRECVid08 Evaluation for Event Detection, organized by NIST.
• Contribution to the software prototyping of AIT’s submission to the Multiple Biometric Grand Challenge (MBGC), organized by NIST.

December 2004 – April 2007: Researcher for the Autonomic & Grid Computing (AGC) Group of Athens Information Technology (AIT).

• Work in the scope of the EU-funded Project CHIL (Computers in the Human Interaction Loop) on the development and implementation of audio-visual perceptual human-machine interfaces. Numerous Publications & working systems were produced as a result.
• The outcomes of this research were installed in the AGC’s Smart Lab and formed part of the backbone for a service designed to facilitate corporate meetings and presentations.
• Contribution to CHIL project deliverable D.4.5, ‘Basic System for Audio Activity Detection’, January 2005.
• Contribution to CHIL project deliverable D.4.6, ‘Audio-Visual Person Identification and Identity Verification’, June 2005.

December 2004 – April 2006: Translation and revising of technical specifications and user manuals for consumer electronics products for N. Katsarakis E.E..

August – November 2002: Internship with Texas Instruments in Freising, Germany, as part of the IAESTE (International Association for Exchange of Students for Technical Experience) program. The goal was to evaluate the design of a Voltage-Controlled Oscillator (VCO) circuit, a subsystem of a Phase-Locked Loop (PLL) device. Supervisor: Herr Horst Jungert.

TEACHING EXPERIENCE

1. Multimedia Communications, MSIN (AIT), Summer 2005: Teaching Assistant for Associate Professor A. Pnevmatikakis, 1 lecture (MPEG Audio Coding).
2. Telecommunication Systems, MsITT (AIT), Fall 2005: Teaching Assistant for Associate Professor A. Pnevmatikakis & Dr. D. Klonidis, 1 laboratory session (MATLAB Primer).
3. PROSTO Executive Program (AIT), 1 hour of theory (Comparison of Algorithms for Face Identification), November 2005.
4. Supervision of AIT student teams working on vision components development for the AGC Smart Lab.
5. Preliminary courses on ‘Programming and Data Structures’, MSITT (AIT), 4 lectures, September 2008.

PURSUIT & ATTRACTION OF RESEARCH FUNDING

Considerable experience in the writing, coordination and pursuit of European funded proposals. In particular, in the period 2005-2007, Mr. Andreas Stergiou worked with the AGC group on the pursuit of three EU proposals: RESTORE, AMPERE, and MARVELOUS.
Integral writing role in the successful nationally-funded (PRIAMOS (GSRT)) research project proposals.

FOREIGN LANGUAGES
English : Cambridge Proficiency (June 1996, Grade : Α), GRE (April 2003, Verbal : 650/800, Quantitative : 800/800)
German : Goethe Institut Mittelstufe (May 1997, Grade : Gut)

SIMULATION & PROGRAMMING TOOLS EXPERIENCE
Programming experience using C, C++ and Java.
System modeling and simulation using MATLAB and SIMULINK.
Experience with various database packages (Oracle, SQLPlus).
Network modeling and simulation using OPNET, VPI and ns-2.
Familiarity with design tools for analog (Cadence) and digital (VHDL) circuitry.

PUBLICATIONS 

Journals

• A. Stergiou, A. Pnevmatikakis and L. Polymenakos, ‘A Decision Fusion System across Time and Classifiers for Audio-visual Person Identification’, in R. Stiefelhagen and J. Garofolo (eds.): CLEAR 2006, Lecture Notes in Computer Science 4122, Springer-Verlag, Berlin Heidelberg, 2006.
• E. Rentzeperis, A. Stergiou, A. Pnevmatikakis and L. Polymenakos, ‘Impact of Face Registration Errors on Recognition’, in I. Maglogiannis, K. Karpouzis and M. Bramer (eds.), Artificial Intelligence Applications and Innovations (AIAI06), Springer, Berlin Heidelberg, pp. 187-194, June 2006.
• E. Rentzeperis, A. Stergiou, C. Boukis, A. Pnevmatikakis and L. Polymenakos, ‘The 2006 Athens Information Technology Speech Activity Detection and Speaker Diarizaton Systems’, in R. Stiefelhagen and J. Garofolo (eds.): RT’06, Lecture Notes in Computer Science, Springer-Verlag, Berlin Heidelberg.
• A. Stergiou, G. Karame, A. Pnevmatikakis and L. Polymenakos, ‘The AIT 2D face detection and tracking system for CLEAR 2007’, in R. Stiefelhagen and J. Garofolo (eds.): CLEAR 2007, Lecture Notes in Computer Science, Springer-Verlag, Berlin Heidelberg, 2007.
• A. Stergiou, A. Pnevmatikakis and L. Polymenakos, ‘The AIT multimodal person identification system for CLEAR 2007’, in R. Stiefelhagen and J. Garofolo (eds.): CLEAR 2007, Lecture Notes in Computer Science, Springer-Verlag, Berlin Heidelberg, 2007.
• A. Stergiou, A. Pnevmatikakis and L. Polymenakos, ‘The AIT outdoor tracker for vehicles and pedestrians in CLEAR 2007’, in R. Stiefelhagen and J. Garofolo (eds.): CLEAR 2007, Lecture Notes in Computer Science, Springer-Verlag, Berlin Heidelberg, 2007.

Conferences

• A. Pnevmatikakis, A. Stergiou and L. Polymenakos, ‘Audio/Visual Person Identification’, 2nd Joint Workshop on Multi-Modal Interaction and Related Machine Learning Algorithms, Edinburgh, UK, July 2005.
• A. Stergiou, A. Pnevmatikakis and L. Polymenakos, ‘EBGM Vs Subspace Projection for Face Recognition’ International Conference on Computer Vision Theory and Applications, Setúbal, Portugal, Vol. 2, pp. 131-137, Feb. 2006.
• E. Rentzeperis, A. Stergiou, C. Boukis, G. Souretis, A. Pnevmatikakis and L. Polymenakos, ‘An Adaptive Speech Activity Detector Based on Signal Energy and LDA’, 3rd Joint Workshop on Multi-Modal Interaction and Related Machine Learning Algorithms.
• A. Stergiou, A. Pnevmatikakis and L. Polymenakos, ‘Enhancing the Performance of a GMM-based Speaker Identification System in a Multi-Microphone Setup’, InterSpeech 2006, Pittsburgh, USA, Sept. 2006.
• A. Stergiou, G. Karame, A. Pnevmatikakis and L. Polymenakos, ‘The AIT face tracker for VACE multisite meeting recordings’, CLEAR 2007, Baltimore, USA, May 2007.
• G. Karame, A. Stergiou, N. Katsarakis, P. Papageorgiou and A. Pnevmatikakis, ‘2D and 3D Face Localization for Complex Scenes’, IEEE Int. Conf. on Advanced Video and Signal based Surveillance (AVSS 2007), London, UK, Sept. 2007.
• A. Stergiou, N. Katsarakis, A. Pnevmatikakis and L. Polymenakos, ‘Detecting Single-Actor Events in Video Streams for TRECVid 2008’, TRECVid 2008 workshop, USA, Nov. 2008.

SOCIETY WORK

1. Participation in the organization of the AIAI2006 international conference (Artificial Intelligence Applications & Innovations 2006 – June 2006).
2. Reviewer for 2nd Joint Workshop on Multi-Modal Interaction and Related Machine Learning Algorithms, Edinburgh, UK, July 2005.
3. Reviewer for the INTERSPEECH 2006 conference, Pittsburgh, Pennsylvania, September 2006.
4. Reviewer for the INTERSPEECH 2007 conference, Antwerp, Belgium, August 2007.

EXHIBITIONS

1. Promotion of AIT and AGC Group Research on e-Life, ET3, April 2005.
2. Promotion of AIT and AGC Group Research at COMDEX technology exhibition, Nov. 2005.
3. Presentation of videos and posters with AIT work in the context of CHIL, as well as a live demo [Face Identification from a fixed camera] (CHIL Technology Day, Berlin, Germany, April 2006).
4. Promotion of AIT and AGC Group Research at the Athens Digital Week technology exhibition, Oct. 2008.