Chrysostomos Symvoulidis
PhD · Artificial Intelligence

Chrysostomos
Symvoulidis

AI Researcher and Technical Manager with experience in designing and developing AI-driven solutions in healthcare, smart cities, and distributed systems. Worked on research and innovation projects involving Cloud and Edge Computing, Health Information Exchange, AI medical imaging, Federated Learning, and intelligent digital platforms. Experienced in technical leadership, system architecture, product management, and AI services, including LLM applications and chatbots. Actively involved in European and national R&D projects, proposal writing, and technical coordination, focused on translating research into high-impact solutions.

Causal Discovery Causal Inference Cloud Computing Deep Learning Edge Computing Machine Learning
31+ Publications
9+ R&D Projects
2 Best Paper Awards
9+ Years Experience
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01

Education

Degrees
2019 – 2024
PhD
Artificial Intelligence
Dept. of Digital Systems · School of Information and Communication Technologies
University of Piraeus
  • Dissertation: Causal and contextual information extraction and data enrichment methods with emphasis on artificial intelligence-driven optimization algorithms for cloud and edge computing.
  • Supervisor: Prof. Dimosthenis Kyriazis
  • Grade: Excellent (10/10)
2016 – 2018
MSc
Big Data & Analytics
Dept. of Digital Systems · School of Information and Communication Technologies
University of Piraeus · MSc Programme: Digital Systems and Services
  • Thesis: Complex Event Processing for real-time events identification.
  • Supervisor: Prof. Dimosthenis Kyriazis
  • Grade: Excellent (9.17/10)
2011 – 2016
BSc
Digital Systems
Dept. of Digital Systems · School of Information and Communication Technologies
University of Piraeus · Major in Electronic Services
  • Final Year Project: Forecasting the Athens Stock Exchange General Index using Machine Learning algorithms.
  • Grade: Very Good (6.53/10)
Doctoral Dissertation

Causal and contextual information extraction and data enrichment methods with emphasis on artificial intelligence-driven optimization algorithms for cloud and edge computing.

Causal Discovery and Context Awareness are central subjects in research for many years. With its origins deeply rooted in scientific research, statistical inference, and philosophical questions, causality has thrilled researchers due to its key role in revealing the relationships between variables. Its significance lies in the pursuit of understanding of not just what happens, but why it happens, and thus making it vital in many scientific fields. Context awareness on the other hand, refers to the ability of a system to understand the context and what are the factors that affect the environment in which it is being used. That being said, Causal Discovery and Context Awareness are of crucial importance when it comes to the development of Artificial Intelligence systems that can be more accurate, robust and generalizable. This thesis focuses on the design and implementation of two Contextual and Causal Extraction methods which can be used for the enrichment of datasets towards the improvement of Machine Learning models. The first method identifies the most influential instances in a dataset and utilizes them in order to generate an Influence-based dataset. The second method discovers the causal relationships that may exist in a dataset and afterwards utilizes this information to generate causal features in order to incorporate this information to the initial dataset. In order to evaluate the methods' performance they have been applied in several, diverse frameworks and strategies used for the optimization of Cloud and Edge Computing environments. The results show that the methods can effectively extract contextual and causal information from datasets. Furthermore, the evaluation proves that the utilization of this information can significantly improve the performance of Machine Learning models. This thesis also provides potential directions for future research that could build upon the findings of the current thesis.

View full dissertation
Causal Discovery Causal Inference Cloud Computing Edge Computing Machine Learning Deep Learning Optimization
02

Work Experience

2024.10 – today
Researcher | Technical Manager
Gruppo Maggioli SpA · Athens, Greece
  • Technical lead of the SEARCH federated storage and learning platform.
  • Coordinate development activities, technical roadmaps, and documentation.
  • Contribute to technical deliverables and project coordination.
2022.05 – today
Researcher | Technical Manager
Telesto Technologies Ltd. · Athens, Greece
  • Lead the architecture and product management of smart city and healthcare platforms.
  • Design and develop AI-driven services, including LLM applications, chatbots, and fleet profiling solutions.
  • Manage feature prioritization, technical documentation, and development activities.
  • Contribute to European and national R&D proposals and technical deliverables.
2022.05 – 2024.06
Researcher | Technical Coordinator
Thridium Ltd. · London, UK
  • Coordinated scientific and technical activities across project work packages.
  • Monitored project progress and ensured alignment with timelines and objectives.
  • Facilitated collaboration among partners and ensured deliverable quality.
2017.06 – 2024.04
Research Associate
University of Piraeus · Piraeus, Greece
  • Developed orchestration and Complex Event Processing components in the MATILDA project.
  • Designed 5G application modelling and service recommendation frameworks.
  • Contributed to technical deliverables and research activities.
  • Teaching / Lab Assistant: C Programming and Information Systems.
2019.06 – 2022.11
Research Associate
BYTE Computer S.A. · Athens, Greece
  • Coordinated integration activities within the InteropEHRate project.
  • Managed BYTE’s technical team and contributed to technical planning.
  • Designed and implemented the Health Storage Cloud and data prefetching mechanisms.
  • Contributed to technical deliverables and project reporting.
2019.01 – 2021.12
Research Associate
SingularLogic S.A. · Athens, Greece
  • Supported project management activities for the BigDataStack project.
  • Contributed to technical deliverables and coordination activities.
03

Research Projects

Active
EMBRACE
Pan-European Management of Biological toxin incidents through standardisation initiatives for Crisis response Enhancement
2024.10 – today · Telesto Technologies Ltd.
EU Horizon Europe
embracebiotoxhub.eu
Active
SEARCH
Synthetic Healthcare Data Governance Hub
2024.10 – today · Gruppo Maggioli SpA
IHI Joint Undertaking
ihi-search.eu
Completed
IMENOT
Identification of ingredients and their metabolites in novel tobacco products
2024.11 – 2026.06 · Telesto Technologies Ltd.
Strategy for Excellence in Universities & Innovation
toptobscience.org
Completed
ONELAB
Orchestrating next-generation mobile modular laboratories for pandemic monitoring preparedness
2022.10 – 2025.12 · Telesto Technologies Ltd.
EU Horizon Europe
onelab-project.eu
Completed
INCISIVE
Multimodal AI-based toolbox and interoperable health imaging repository for cancer diagnosis, prediction and follow-up
2020.10 – 2024.04 · Thridium Ltd.
EU Horizon 2020
incisive-project.eu
Completed
InteropEHRate
Interoperable Electronic Health Records at user edge
2019.01 – 2022.09 · BYTE Computer S.A.
EU Horizon 2020
interopehrate.eu
Completed
BigDataStack
High-performance data-centric stack for big data applications and operations
2018.01 – 2020.12 · SingularLogic S.A.
EU Horizon 2020
bigdatastack.eu
Completed
LeADS
Legality attentive data scientists
2022.04 – 2022.06 · BYTE Computer S.A.
Marie Skłodowska-Curie Actions
legalityattentivedatascientists.eu
Completed
MATILDA
Holistic framework for 5G-ready applications and network services over sliced programmable infrastructure
2017.06 – 2020.07 · University of Piraeus Research Centre
EU Horizon 2020
matilda-5g.eu
04

Publications

Journal 2026
A three-tier AI-based approach for dynamic application placement in cloud–edge environments
E. Paraskevoulakou, C. Symvoulidis, P. Karamolegkos, G. Kousiouris, D. Kyriazis
Future Generation Computer Systems, Elsevier View
Journal 2026
Evaluation of the INCISIVE services in cancer imaging: a feasibility study
L. Zacharias, I. Hesso, R. Kayyali, C. Symvoulidis, et al.
Seminars in Oncology Nursing, Elsevier View
Journal 2023
A user mobility-based data placement strategy in a hybrid cloud/edge environment using a causal-aware deep learning network
C. Symvoulidis, A. Kiourtis, G. Marinos, J. D. Totow Tom-Ata, G. Manias, A. Mavrogiorgou, D. Kyriazis
IEEE Transactions on Computers, IEEE View
Journal 2023
Multilingual text categorization and sentiment analysis: a comparative analysis of multilingual approaches for classifying twitter data
G. Manias, A. Mavrogiorgou, A. Kiourtis, C. Symvoulidis, D. Kyriazis
Neural Computing and Applications, Springer View
Journal 2023
Batch and streaming data ingestion towards creating holistic health records
A. Mavrogiorgou, A. Kiourtis, G. Manias, C. Symvoulidis, D. Kyriazis
Emerging Science Journal, Ital Publication View
Journal 2023
Identity management standards: a literature review
A. Kiourtis, A. Giannetsos, C. Symvoulidis, et al.
Computer and Informatics, DergiPark View
Journal 2022
The holistic perspective of the INCISIVE project — artificial intelligence in screening mammography
I. Lazic, F. Agullo, C. Symvoulidis, et al.
Applied Sciences, MDPI View
Journal 2022
HealthFetch: an influence-based, context-aware prefetch scheme in citizen-centered health storage clouds
C. Symvoulidis, G. Marinos, A. Kiourtis, A. Mavrogiorgou, D. Kyriazis
Future Internet, MDPI View
Book chapter 2025
Architectures and platforms for trustworthy AI: cloud technologies and federated approaches
A. Gutierrez-Torre, F. Agulló López, P. Laras, C. Symvoulidis
Trustworthy AI in Cancer Imaging Research (pp. 169–194), Springer View
Conference 2024
Enhancing international security: a secure biometric data sharing framework for cross-border crime and terrorism prevention
G. Benos, K. Koutsoukos, C. Symvoulidis, D. Drakoulis
IEEE BigData 2024 View
Conference 2024
A secure and trustworthy biometric data ecosystem for cross-border suspect identification
K. Kyriakou, A. Apostolaras, C. Symvoulidis, et al.
IEEE BigData 2024 View
Conference 2024
Exploring machine learning algorithms for infection detection using GC-IMS data: a preliminary study
C. Sardianos, C. Symvoulidis, M. Schloegl, I. Varlamis, G. T. Papadopoulos
EEITE 2024 View
Conference 2024
Dynamic resource allocation on the edge: a causal and contextually-aware machine learning approach
C. Symvoulidis, E. Paraskevoulakou, A. Kiourtis, A. Mavrogiorgou, D. Kyriazis
IntelliSys 2024 View
Conference 2024🏆 Best paper
Enhancing cloud-based application component placement with AI-driven operations
E. Paraskevoulakou, J. D. Totow Tom-Ata, C. Symvoulidis, D. Kyriazis
IEEE CCWC 2024 View
Conference 2023🏆 Best paper
Dynamic deployment prediction and configuration in hybrid cloud/edge computing environments using influence-based learning
C. Symvoulidis, A. Kiourtis, A. Mavrogiorgou, J. D. Totow Tom-Ata, G. Manias, D. Kyriazis
IEEE EECSI 2023 View
Conference 2023
Polymorphic cloud application design assisted by open source software classification
J. D. Totow Tom-Ata, K. Kritikos, C. Symvoulidis, D. Kyriazis
CECCC 2023 View
Conference 2023
A practical guide to green computing for manufacturers, businesses, and individuals
A. Kiourtis, A. Mavrogiorgou, G. Makridis, C. Symvoulidis, D. Kyriazis
FRUCT 2023 View
Conference 2022
K-Medoids-Surv: a patients risk stratification algorithm considering censored data
G. Marinos, C. Symvoulidis, D. Kyriazis
ICAISC 2022 View
Conference 2022
Electronic health records at people's hands across Europe: the InteropEHRate protocols
A. Kiourtis, A. Mavrogiorgou, C. Symvoulidis, et al.
pHealth 2022 View
Conference 2022
Mobile anonymization and pseudonymization of structured health data for research
S. Dimopoulou, C. Symvoulidis, K. Koutsoukos, A. Kiourtis, A. Mavrogiorgou, D. Kyriazis
IEEE MobiSecServ 2022 View
Conference 2022
Emergency health protocols supporting health data exchange, cloud storage, and indexing
K. Koutsoukos, C. Symvoulidis, A. Kiourtis, A. Mavrogiorgou, S. Dimopoulou, D. Kyriazis
HEALTHINF 2022 View
Conference 2021
MICSurv: medical image clustering for survival risk group identification
G. Marinos, C. Symvoulidis, D. Kyriazis
IEEE BioSMART 2021 View
Conference 2021
A health information exchange protocol supporting Bluetooth-based messages
A. Kiourtis, A. Graziani, A. Mavrogiorgou, C. Symvoulidis, K. Mavrogiorgos, D. Kyriazis
IEEE ICISAT 2021 View
Conference 2021
Facilitating health information exchange in medical emergencies
C. Symvoulidis, A. Mavrogiorgou, A. Kiourtis, G. Marinos, D. Kyriazis
IEEE EHB 2021 View
Conference 2021
Healthcare provision in the cloud: an EHR object store-based cloud used for emergency
C. Symvoulidis, A. Kiourtis, A. Mavrogiorgou, D. Kyriazis
HEALTHINF 2021 View
Conference 2021
Indexing of cloud stored electronic health records for consented third party accessing
A. Kiourtis, A. Mavrogiorgou, C. Symvoulidis, C. Tsigkounis, D. Kyriazis
FRUCT 2021 View
Conference 2021
Learning a generalized matrix from multi-graphs topologies towards microservices recommendations
I. Tsoumas, C. Symvoulidis, D. Kyriazis
IntelliSys 2020 View
Conference 2019
Modelling 5G cloud-native applications by exploiting the service mesh paradigm
I. Tsoumas, C. Symvoulidis, D. Kyriazis, P. Gouvas, A. Zafeiropoulos, J. Melian, J. Sterle
EMCIS 2019 View
Conference 2019
Towards the identification of context in 5G infrastructures
C. Symvoulidis, I. Tsoumas, D. Kyriazis
SAI Computing Conference 2019 View
Conference 2019
An integrated SLA management framework in a 5G environment
M. Touloupou, E. Kapassa, C. Symvoulidis, P. Stavrianos, D. Kyriazis
IEEE ICIN 2019 View
Conference 2018
Capturing the reliability of unknown devices in the IoT world
A. Mavrogiorgou, A. Kiourtis, C. Symvoulidis, D. Kyriazis
IEEE IoTSMS 2018 View
05

Teaching

Lecturing
2025 – 2026
Neural Networks & Deep Learning
MSc in Advanced Information Systems & MSc in Big Data and Analytics · University of Piraeus
Teaching assistant
2017 – 2023
DS-501 C Programming (Lab)
Dept. of Digital Systems, University of Piraeus
2019 – 2023
DS-512 Information Systems (Lab)
Dept. of Digital Systems, University of Piraeus
Final year project supervision
2023
D. Kozoni
"Comparative analysis of Explainable Artificial Intelligence (XAI) tools" · Undergraduate, University of Piraeus
06

Awards & Services

Awards
2024
🏆 Best paper
14th IEEE Annual Computing and Communication Workshop and Conference (CCWC 2024)
2023
🏆 Best paper
10th IEEE International Conference on Electrical Engineering, Computer Science and Informatics (EECSI 2023)
Reviewer
Computer Communications Journal, Elsevier
Scientific Reports Journal, Springer Nature
Concurrency and Computation: Practice and Experience (CCPE), Wiley
Trustworthy AI in Cancer Imaging Research, Springer Nature
International Conference on Cloud Computing and Services Science (CLOSER), INSTICC
07

Skills & Interests

Machine learning
TensorFlowKerasScikit-learnPandasNumPyMatplotlibSeaborn
Programming
PythonJavaJava for AndroidCR
Web & APIs
FlaskFastAPIStreamlitSpringRESTful APIsJWTPostman
Big data
HadoopSparkKafkaFlink
Cloud & DevOps
DockerDocker ComposeVMsPrometheusGrafana
Databases
MySQLMongoDBMariaDBMS SQL ServerMinIO
Version control & IDEs
GitGitHubGitLabAzure DevOpsTrelloPyCharmVS Code
Languages
Greek (native)English (fluent)German (basic)
Soft skills
Attention to detailCritical thinkingProblem solvingDecisivenessConflict resolutionInterpersonal communication
Interests
TravellingPhotographyMusicMountain bikingTrail runningCrossFitMoviesGaming