JOURNAL ARTICLES:

• Z. Theodosiou, M. Thoma, H.  Partaourides, A. Lanitis, “A Systematic Approach for Developing a Robust Artwork Recognition Framework Using Smartphone Cameras”, Algorithms 2022, vol.15, 2022
• Z.Theodosiou and N. Tsapatsoulis, “Image annotation: The effects of content, lexicon and annotation method”, International Journal of Multimedia Information Retrieval, vol. 9, pp. 191–203, 2020
• V. Moustaka, Z.Theodosiou, A. Vakali, A. Kounoudes, L. G. Antopoulos, “Εnhancing Social Networking in Smart Cities: Privacy and Security Borderlines”, Elsevier Journal of Technological Forecasting and Social Change, vol. 142, pp. 285-300, 2019
• Z.Theodosiou, “Image Retrieval: Modelling Keywords via Low-Level Features”, Electronic Letters on Computer Vision and Image Analysis, vol.14 (3), 2015
• Z. Theodosiou and N. Tsapatsoulis, “Attention-Based Health Monitoring”,   International Journal of Monitoring and Surveillance Technologies   Research (IJMSTR), vol. 1(3), pp.68-81, 2013
• Z. Theodosiou, I. N. Kasampalidis, G. Karayannopoulou, I. Kostopoulos, M. Bobos, G. Bevilacquaca, P. Aretini, A. Starita, K. Lyroudia, and I. Pitas, “Evaluation of FISH image analysis system on assessing HER2 amplification in breast carcinoma cases”, The breast Elsevier, vol. 17(1), pp.80-84, 2008 
• Z. Theodosiou, I. N. Kasampalidis, G. Livanos, M. Zervakis, I. Pitas and K. Lyroudia, “Automated Analysis of FISH and Immunohistochemistry Images: A Review”, Cytometry Part 1, vol 71, pp. 439-450, 2007

BOOK CHAPTERS:

• A. Kafkalias, S. Herodotou, Z. Theodosiou, A. Lanitis, “Bias in Face Image Classification Machine Learning Models: The Impact of Annotator’s Gender and Race”, In: Maglogiannis, I., Iliadis, L., Macintyre, J., Cortez, P. (eds) Artificial Intelligence Applications and Innovations. AIAI 2022. IFIP Advances in Information and Communication Technology, vol 647. Springer, 2022
• Z. Theodosiou, H. Partaourides, S. Panayi, A. Kitsis, A. Lanitis, “Detection and Recognition of Barriers in Egocentric Images for Safe Urban Sidewalks”, In: , et al. Computer Vision, Imaging and Computer Graphics Theory and Applications. VISIGRAPP 2020. Communications in Computer and Information Science, vol 1474. Springer, 2021
• A. Lanitis, Z. Theodosiou, H. Partaourides, “Artwork Identification in a Museum Environment: A Quantitative Evaluation of Factors Affecting Identification Accuracy”, In: M. Ioannides, E. Fink, L. Cantoni, E. Champion. (eds) Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection. Lecture Notes in Computer Science book series (LNCS, volume 12642). Springer, 2021
• M. Thoma, Z. Theodosiou, H. Partaourides, C. Tylliros, D. Antoniades, A. Lanitis, “A Smartphone Application Designed to Detect Obstacles for Pedestrians’ Safety”, In: Paiva S., Lopes S.I., Zitouni R., Gupta N., Lopes S.F., Yonezawa T. (eds) Science and Technologies for Smart Cities. SmartCity360° 2020. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 372. Springer, Cham, 2021
• Z. Theodosiou, N. Tsapatsoulis, “Image Retrieval Using Keywords: The Machine Learning Perspective”, in Semantic Multimedia Analysis and Processing, Ed. By E. Spyrou, D. Iakovides, P. Mylonas, CRC Press / Taylor & Francis (June 2014)

ARTICLES IN CONFERENCE PROCEEDINGS:

• M. Thoma, H. Partaourides, I. Sreedharan, Z. Theodosiou, L. Michael, A. Lanitis, “Performance Assessment of Fine-tuned Barrier Recognition Models in Varying Conditions”, 20th International Conference on Computer Analysis of Images and Patterns (CAIP 2023), Limassol, Cyprus, 25-30 September 2023
• Z. Theodosiou, M. C. Voutsa, C. Constantinou, A. Lanitis, “Safe vs unsafe crosswalks: Assessing the factors related to pedestrian safety”, 18th International Workshop on Semantic and Social Media Adaptation &Personalization (SMAP), Limassol, Cyprus, 25-26 September 2023
• P. Perikleous, A. Kafkalias, Z. Theodosiou, P. Barlas, E. Christoforou, J. Otterbacher, G. Demartini, A. Lanitis, “How Does the Crowd Impact the Model? A Tool for Raising Awareness of Social Bias in Crowdsourced Training Data”, In Proceedings of the 31st ACM International Conference on Information & Knowledge Management (CIKM '22). Association for Computing Machinery, New York, NY, USA, 4951–4954, 2022
• Z.Theodosiou, H. Partaourides, T. Atun, S. Panayi, A. Lanitis, "A first person database for detecting barriers for pedestrians" , 15th The International Conference on Computer Vision Theory and Applications, Valletta, Malta, 2020
• Z. Theodosiou and A. Lanitis, "Visual Lifelogs Retrieval: State of the Art and Future Challenges," 2019 14th International Workshop on Semantic and Social Media Adaptation and Personalization (SMAP), Larnaca, Cyprus, pp. 1-5, 2019  
• V. Moustaka, Z. Theodosiou, A. Vakali, and A. Kounoudes, “Smart Cities at Risk!: Privacy and Security Borderlines from Social Networking in Cities”,  In Proc. of The Web Conference 2018 (WWW '18), pp. 905-910, April 23-27, Lyon France, 2018
• A. Gogoglou, Z. Theodosiou, A. Kounoudes, A. Vakali, Y. Manolopoulos, “Early Malicious Activity Discovery in Microblogs by Social Bridges Detection”, In Proc of the 16th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2016), December 12-14, Limassol, Cyprus, 2016

• Best Paper Award

• C. Psomas, C. Skouroumounis, I. Krikidis, A. Kalis, Z. Theodosiou, A. Kounoudes, "Performance gains from directional antennas in full-duplex systems," in Proceedings of IEEE International Conference on the Microwaves, Communications, Antennas and Electronic Systems (COMCAS), pp.1-5, November 2-4, Tel-Aviv Israel, 2015
• Z. Theodosiou, Nicolas Tsapatsoulis, “Spatial Histogram of Keypoints (SHiK)”, in Proceedings of the IEEE International Conference on Image Processing, pp. 2924-2928, September 14-18, Melbourne Australia, 2013
• Z. Theodosiou, Nicolas Tsapatsoulis, “Semantic Gap Between People: An Experimental Investigation based on Image Annotation”, in Proceedings of the 7th International Workshop on Semantic Media Adaptation and Personalization (SMAP), pp. 73-77, December 3-4, Luxembourg, 2012
• G. Tryfoy, Z. Theodosiou, N. Tsapatsoulis, “Web image context extraction based on semantic representation of web page visual segments”, in Proceedings of the 7th International Workshop on Semantic Media Adaptation and Personalization (SMAP), pp. 63-67, December 3-4, Luxembourg, 2012
• Z. Theodosiou, N. Tsapatsoulis, “Modelling Crowdsourcing Originated Keywords within the Athletics Domain”, Artificial Intelligence Applications and Innovations, IFIP Advances in Information and Communication Technology, Vol. 381, pp. 404 – 413, 2012
• Z. Theodosiou, N. Tsapatsoulis, “On the Creation of Visual Models for Keywords through Crowdsourcing”, Recent Researches in Applications of Electrical and Computer Engineering, pp.96-100, Athens Greece, March 2012
• Z. Theodosiou, O. Georgiou and N. Tsapatsoulis, “Evaluating annotators consistency with the aid of an innovative database schema”, in Proceedings of the 6th International Workshop on Semantic Media Adaptation and Personalization (SMAP 2011), pp. 74‐78, Vigo, Spain, December 2011
• Z. Theodosiou and N. Tsapatsoulis, “Crowdsourcing Annotation: Modelling keywords using low level features”, in Proceedings of the 5th International Conference on Internet Multimedia Systems Architecture and Application (IEEE IMSAA 11), Bangalore, India, December 2011

• Z. Theodosiou, N. Tsapatsoulis, S. Bujak‐Pietrek, I. Szadkowska ‐ Stanczyk, “Airborne asbestos fibers detection in microscope images using re‐initialization free active contours”, in Proceedings of the 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010), pp.4785‐4788, Buenos Aires, Argentina, September 2010

• N. Tsapatsoulis, Z. Theodosiou, “Object Classification using the MPEG-7 visual descriptors: An experimental evaluation using state of the art data classifiers”, in Proceedings of the 19th International Conference on Artificial Neural Networks (ICANN 2009), Limassol, Cyprus, September 2009
• Z. Theodosiou, A. Kounoudes, N. Tsapatsoulis, M. Milis, “MuLVAT: A Video Annotation Tool based on XML-dictionaries and Shot Clustering”, in Proceedings of the 19th International Conference on Artificial Neural Networks (ICANN 2009), Limassol, Cyprus, September 2009
• A. Kounoudes, N. Tsapatsoulis, Z. Theodosiou, M. Milis, “POLYBIO: Multimodal Biometric Data Acquisition Platform and Security System”, in Biometrics and Identity Management, Ed. by B. Schouten, N. C. Juul, A. Drygajlo, M. Tistarelli, Spinger-Verlag, pp. 216-227, 2009
• A. Kounoudes, N. Tsapatsoulis, Z. Theodosiou, M. Milis, “A multi‐level Video Annotation Tool based on XML‐dictionaries”, Proceedings of the 10th International Conference on Mathematical Methods, Computational Techniques and Intelligent Systems, Corfu, Greece, October 2008

• Z. Theodosiou, I. Kasampalidis, G. Karayannopoulou, I. Kostopoulos, P.  Aretini, F. A Cardillo, G. Bevilacqua, A. Starita, K. Lyroudia, I. Pitas, “Evaluation of automated FISH image analysis software on 60 breast carcinoma cases”, Meeting on BioInformatics and Medical Informatics, Athens, Greece, October 4-5, 2006
• Z. Theodosiou, F. Raimondo, M.E.Garefalaki, G. Karayannopoulou, K. Lyroudia, I. Pitas, I. Kostopoulos, “Fish Image Analysis System for Breast Cancer Studies”, European Conference on Emergent Aspects in Clinical Data Analysis (EACDA, 2005), Pisa, Italy, September 28-30, 2005
• V. C. Kelessidis, M. Zervakis, Z. Theodosiou, “System for collection and analysis of analog camera signal for studying solid motion during two-phase flow in horizontal annulus”, Paper presented at the 5th Panhellenic Symposium of Chemical Engineering, Thessaloniki, Greece, May 26-28, 2005

•  “PEDESTRIAN: First-Person Image Analysis for Developing Pedestrian Assistive Technologies”, CYENS Centre of Excellence (Internal funded Project)

Role: Coordinator (2022-2023)

• “RISE: Research Centre in Interactive media, Smart systems and Emerging technologies” H2020 Teaming Phase 2, Grand Agreement 739578 complemented by the Government of the Republic of Cyprus through the Directorate General for European Programmes, Coordination and Development

Role: Research Associate (2018- now)

• “MaRITeC-X: Marine and Maritime Research Innovation and Technology Centre of Excellence”, H2020 Teaming Phase 1, Grand Agreement 763815

                  Role: Researcher & Project Manager (2017-2018)

• “SIMDAS: Upgrade of CaSToRC into a Center of Excellence in Simulation and Data Science”, H2020 Teaming Phase 1, Grand Agreement 763558

                  Role: Researcher & Project Manager (2017-2018)

• “ENCASE: Enhancing Security and Privacy in the Social Web: a User-centered Approach for the Protection of Minors”, H2020 Marie Curie RISE, Grand Agreement 691025

Role: Project Manager & Supervisor of Secondees on behalf of SignalGeneriX Ltd (2016-2018)

•  “FUPLEX: Full-duplex Radio for LTE Communication Systems”, National fund, Protocol No ΔΙΑΚΡΑΤΙΚΕΣ/ΚΥ-ΙΣΡ/0114/02

Role: Researcher & Project Manager (2015-2017)

•  “MariaBox: MARINE environmental in situ Assessment and monitoring tool BOX”, FP7-OCEAN-2013, Grant Agreement 614088

Role: Researcher & Project Manager (2014-2018)

• “ICT COST Action IC1206: De-identification for Privacy Protection in Multimedia Content”

Role: Member of the Management Committee, Representative of Cyprus (2013-2017)

• “TISAMUC: Techniques for Intelligent Search and Access of Multimedia Content”, CRPF, under Grant ΠΕΝΕΚ/0609/95.

Role: Principal Investigator (2010-2014)

• “PORPARDET: Portable Particle Detection Device”, FP7-SME-2007-1, Grant Agreement 222590

Role: Researcher (2009-2010)

• “WideMEDnet: A Mediterranean network for Higher and Continuing Medical Education Resources”, INTERREG III ARCHIMED / 027867

Role: Researcher (2009)

• “POLY-BIO: Multimodal Biometric Security System”, CRPF, under Grant ΠΛΗΡΟ/0506/04

Role: Researcher (2007-2008)

• “PSIFIORIKSI: Digitization of AudioVisual Content and Extraction, Mining and Management of Multimedia Metadata based on MPEG standards”, CRPF, under Grant ΠΛΗΡΟ 0406/07

Role: Researcher (2007-2008)

• “Biopattern: Computational Intelligence for Biopattern Analysis in Support of eHealthcare”, Network of Excellence Project No. 508803

Role: Researcher (2005-2006)

• Special Teaching Staff
  Department of Communication and Internet Studies, Cyprus University of Technology, [September 2022-Today]

• Research Associate
  Biometrics for Smart Human-centred Emerging Technologies (BIO-SCENT) Research Group, CYENS Centre of Excellence
  [October 2018 - Today]

• Instructor of Computer Engineering
  Secondary Technical and Vocational Education, Cyprus Ministry of Education, Sports and Youth, Cyprus
  [September 2021-September 2022]

• Adjunct Lecturer
  MSc in Applied Health and Telemedicine, Faculty of Pure and Applied Sciences, Open University of Cyprus
  [February 2016-June 2016, February 2017-June 2017, February 2019-June 2019]

• Adjunct Lecturer
  Department of Communication and Internet Studies, Cyprus University of Technology
  [September 2014-December 2014, January 2015-May 2015, September 2015-December 2015, September 2016-December 2016, September 2017-December 2017, September 2018-December 2018]

• Senior Research Engineer
  SignalGenerix Ltd
  [March 2014-September 2018]

• Research Associate
  Department of Communication and Internet Studies, Cyprus University of Technology
  [January 2009-February 2014]

• Research Engineer
  SignalGenerix Ltd
  [October 2007-December 2008]

• Research Associate
  Artificial Intelligence and Information Analysis laboratory, Department of Informatics, Aristotle university of Thessaloniki
  [May 2005-December 2006]