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Δρ. Διονύσιος Κεχαγιάς -
Δημοσιεύσεις

Δημοσιεύσεις Σε Περιοδικά

  1. T. Varelas, A. Pentefountas, M. Tsimpoura, A. Sinanis, D. Kehagias, A. Tsakiris, D. Tzovaras, A. Kontonikolaou, "Activator: An Immersive Virtual Reality Serious Game Platform for Highlighting Ancient Greek Civilization.", KN-Journal of Cartography and Geographic Information, Volume 73, pages 277–288, (2023).
  2. I. Kalouptsoglou, M. Siavvas, A. Ampatzoglou, D. Kehagias, A. Chatzigeorgiou, "Software vulnerability prediction: A systematic mapping study.", Information and Software Technology, Volume 164, 2023, 107303, ISSN 0950-5849. https://doi.org/10.1016/j.infsof.2023.107303
  3. M. Siavvas, D. Tsoukalas, I. Kalouptsoglou, E. Manganopoulou, G. Manolis, D. Kehagias, D. Tzovaras, "Security Monitoring during Software Development: An Industrial Case Study.", Applied Sciences. 2023; 13(12):6872. https://doi.org/10.3390/app13126872
  4. C. Tsita, M. Satratzemi, A. Pedefoudas, C. Georgiadis, M. Zampeti, E. Papavergou, S. Tsiara, E. Sismanidou, P. Kyriakidis, D. Kehagias, D. Tzovaras, "A Virtual Reality Museum to Reinforce the Interpretation of Contemporary Art and Increase the Educational Value of User Experience.", Heritage. 2023; 6(5):4134-4172. https://doi.org/10.3390/heritage6050218
  5. D. Tsoukalas, M. Siavvas, D. Kehagias, A. Chatzigeorgiou, A. Ampatzoglou, "A practical approach for technical debt prioritization based on class-level forecasting.", In Journal of Software: Evolution and Process (JSME), Wiley, 2023;e2564. DOI: 10.1002/smr.2564
  6. G. Angelis, C. Timplalexis, A. Salamanis, S. Krinidis, D. Ioannidis, D. Kehagias, D. Tzovaras, "Energformer: A New Transformer Model for Energy Disaggregation.", IEEE Transactions on Consumer Electronics, doi: 10.1109/TCE.2023.3237862
  7. A. Salamanis, G. Xanthopoulou, D. Kehagias, D. Tzovaras, "LSTM-Based Deep Learning Models for Long-Term Tourism Demand Forecasting", . Electronics 2022, 11, 3681. https://doi.org/10.3390/electronics11223681
  8. M. Siavvas, D. Tsoukalas, M. Jankovic, D. Kehagias, D. Tzovaras, "Technical debt as an indicator of software security risk: a machine learning approach for software development enterprises", Enterprise Information Systems. 16(5):1824017, 2022.
  9. I. Kalouptsoglou, M. Siavvas, D. Kehagias, A. Chatzigeorgiou, A. Ampatzoglou, "Examining the Capacity of Text Mining and Software Metrics in Vulnerability Prediction", Entropy. 5;24(5):651, 2022.
  10. N. Vasilas, A. Papadopoulos, L. Papadopoulos, A. Salamanis, P. Kazepidis, D. Soudris, D. Kehagias, P. Seferlis, "Approximate Computing, Skeleton Programming and Run-Time Scheduling in an Algorithm for Process Design and Controllability in Distributed and Heterogeneous Infrastructures", Computers & Chemical Engineering, 107874, 2022.
  11. I. Kalouptsoglou, D. Tsoukalas, M. Siavvas, D. Kehagias, A. Chatzigeorgiou, A. Ampatzoglou, "Time Series Forecasting of Software Vulnerabilities Using Statistical and Deep Learning Models", . Electronics. 11(18):2820, 2022.
  12. C. Lamprakos, C. Marantos, M. Siavvas, L. Papadopoulos, A. Tsintzira, A.Ampatzoglou, A. Chatzigeorgiou, D. Kehagias, D. Soudris, "TranslatingQuality-Driven Code Change Selection to an Instance of Multiple-CriteriaDecision Making", Information and Software Technology, Elsevier, 2022.
  13. D. Tsoukalas, N. Mittas, A. Chatzigeorgiou, D. Kehagias, A. Ampatzoglou, T. Amanatidis, L. Angelis, "Machine Learning for Technical Debt Identification", IEEE Transactions on Software Engineering (accepted for publication)(2022)
  14. L. Papadopoulos, S. Soudris, C. Kessler, A. Ernstsson, J. Ahlqvist, N. Vasilas, A. Papadopoulos, P. Seferlis, C. Prouveur, M. Haefele, S. Thibault, A. Salamanis, T. Ioakimidis, D. Kehagias, "EXA2PRO: A Framework for High Development Productivity on Heterogeneous Computing Systems", IEEE Transactions on Parallel and Distributed Systems, 33 (4), 792-804 (2022)
  15. D. Tsoukalas, M. Mathioudaki, M. Siavvas, D. Kehagias, A. Chatzigeorgiou, "A clustering approach towards cross-project technical debt forecasting.", SN Computer Science, 2(1), 1-30. (2021)
  16. D. Kehagias, M. Jankovic, M. Siavvas, E. Gelenbe, "Investigating the interaction between energy consumption, quality of service, reliability, security, and maintainability of computer systems and networks.", SN Computer Science, 2(1), 1-6. (2021)
  17. M. Siavvas, D. Kehagias, D. Tzovaras, E. Gelenbe, "A hierarchical model for quantifying software security based on static analysis alerts and software metrics.", Software Quality Journal, 29(2), 431-507. (2021)
  18. A. Salamanis, G. Xanthopoulou, N. Bezas, C. Timplalexis, A. Bintoudi, L. Zyglakis, A. Tsolakis, D. Ioannidis, D. Kehagias, D. Tzovaras, "Benchmark Comparison of Analytical, Data-Based and Hybrid Models for Multi-Step Short-Term Photovoltaic Power Generation Forecasting", Energies (2020), 13(22), 5978, doi: https://doi.org/10.3390/en13225978
  19. D. Tsoukalas, D. Kehagias, M. Siavvas, A. Chatzigeorgiou, "Technical Debt Forecasting: An empirical study on open-source repositories", In: Journal of Systems and Software, vol. 170, p. 110777 (2020). DOI https://doi.org/10.1016/j.jss.2020.110777
  20. M. Siavvas, D. Tsoukalas, M. Jankovic, D. Kehagias, D. Tzovaras, "Technical debt as an indicator of software security risk: a machine learning approach for software development enterprises", Enterprise Information Systems 0(0), 1{43 (2020). DOI 10.1080/17517575.2020.1824017
  21. T. Varelas, A. Pentefoundas, C. Georgiadis, D. Kehagias, "An AR indoor positioning system based on anchors", MATTER: International Journal of Science and Technology, Vol. 6, Issue 3, pp. 43-57, 2020
  22. A. Salamanis, D. Kehagias, D. Tsoukalas, D. Tzovaras, "A Reputation Assessment Mechanism for Carpooling Applications based on clustering user travel preferences",International Journal of Transportation Science and Technology, Vol. 8, pp. 68–81, 2019.
  23. E. Mavridou, K. Giannoutakis, D. Kehagias, D. Tzovaras, G. Hassapis, "Automatic categorization of Web Service elements",International Journal of Web Information Systems, Vol. 14 Issue: 2, pp.233-258, 2018. [2019 Highly Commended Award]
  24. I. Kalamaras, A. Zamichos, A. Salamanis, A. Drosou, D. Kehagias, G. Margaritis, St. Papadopoulos, D. Tzovaras, "An interactive Visual Analytics Platform for smart Intelligent Transportation Systems management", in IEEE Transactions on Intelligent Transportation Systems, vol. 19, no. 2, pp. 487-496, Feb. 2018, doi: 10.1109/TITS.2017.2727143
  25. A. Salamanis, G. Margaritis, D. Kehagias, G. Matzoulas, D. Tzovaras, "Identifying patterns under both normal and abnormal traffic conditions for short-term traffic prediction.", Transportation Research Procedia, Vol. 22, pp.665-674, 2017.
  26. A. Salamanis, D. Kehagias, C.K. Filelis-Papadopoulos, D. Tzovaras, G.A. Gravvanis, "Managing Spatial Graph Dependencies in Large Volumes of Traffic Data for Travel-Time Prediction",IEEE Trans. on Intelligent Transportation, Vol. 17, No. 6, pp. 1678 - 1687, 2016, doi: 10.1109/TITS.2015.2488593
  27. A. Salamanis, A. Drosou, D. Michalopoulos, D. Kehagias, D. Tzovaras, "A Probabilistic Framework for the Reliability Assessment of Crowd Sourcing Urban Traffic Reports.", Transportation Research Procedia, Vol. 14, pp. 4552–4561, 2016.
  28. D. Kehagias, A. Salamanis, D. Tzovaras, "Speed Pattern Recognition Technique for Short–Term Traffic Forecasting based on Traffic Dynamics", IET Intelligent Transport Systems, Vol. 9, No. 6, pp.646-653, 2015.
  29. E. Mavridou, D. Kehagias, D. Tzovaras, G. Hassapis, "Mining Affective Needs of Automotive Industry Customers for Building a Mass-Customization Recommender System", Journal of Intelligent Manufacturing, Vol. 24, No.2, pp.251-265, 2013.
  30. C. Bratsas, P. Bamidis, D. Kehagias, E. Kaimakamis, N. Maglaveras, "Dynamic Composition of Semantic Pathways for Medical Computational Problem Solving by Means of Semantic Rules", IEEE Transactions on Information Technology in Biomedicice, Vol. 15, No. 2, pp. 334-343, March 2011
  31. D. Kehagias, K. Giannoutakis, G. Gravvanis, D. Tzovaras, "An Ontology-based Mechanism for Automatic Categorization of Web Services", Concurrency and Computation: Practice and Experience, Vol. 24, No. 3, pp. 214–236, Mar. 2011, DOI: 10.1002/cpe.1818
  32. D. Kehagias, D. Tzovaras, "A Semantic Web service-oriented application for mobility impaired users", International Journal of Social and Humanistic Computing, Vol. 1, No. 2, pp.149-162, 2009.
  33. A. L. Symeonidis, K. C. Chatzidimitriou, D. Kehagias, P. A. Mitkas, "A Multi-agent Infrastructure for Enhancing ERP system Intelligence", Scalable Computing: Practice and Experience, Vol. 8, No. 1, 2007, pp. 101-114
  34. P. A. Mitkas, A. L. Symeonidis, D. Kehagias, I. N. Athanasiadis, "Application of Data Mining and Intelligent Agent Technologies to Concurrent Engineering", International Journal of Product Lifecycle Management, Vol. 2, No. 2, pp. 173-186, 2007.
  35. A. L. Symeonidis, D. Kehagias, P. A. Mitkas, A. Koumpis, "Open Source Supply Chains", International Journal of Advanced Manufacturing Systems (IJAMS), Vol. 9, No. 1, 2006, pp. 33-42.
  36. D. Kehagias, A. L. Symeonidis, P. A. Mitkas, "Designing Pricing Mechanisms for Autonomous Agents based on Bid-Forecasting", Electronic Markets: the International Journal of Electronic Commerce & Business Media, Vol. 15, No. 1, 2005, pp. 38-52.
  37. A. Symeonidis, D. Kehagias, P. Mitkas, "Intelligent policy recommendations on enterprise resource planning by the use of agent technology and data mining techniques", Expert Systems with Applications (Elsevier), Vol. 25, No. 4., pp 589-602, November 2003

Δημοσιεύσεις Σε Συνέδρια

  1. G. Xanthopoulou, D. Kehagias, D. Tzovaras, "Traffic Prediction for More Accurate Last-Mile Delivery Management.", 11th International Congress on Transportation Research, Herakleio 2023.
  2. D. Kehagias, G. Xanthopoulou, "Load Balancing Approach for Efficient Batch Assignment of Delivery Tasks.", 7th International Conference on Intelligent Traffic and Transportation, Madrid 2023.
  3. T. Ioakeimidis, D. Kehagias, S. Kontogiannis, P. Melissaridis, A. Paraskevopoulos, G. Xanthopoulou, C. Zaroliagis, "i-Deliver: A Crowdsourcing Platform for Delivery-as-a-Service.", 15th ITS European Congress, Lisbon, Portugal, 2023.
  4. I. Kalouptsoglou, M. Siavvas, A. Ampatzoglou, D. Kehagias, A. Chatzigeorgiou, "An empirical comparison of Transformer-based models in Vulnerability Prediction.",The 23rd International Conference on Computational Science and Its Applications, May 2023.
  5. G. Christainas, D. Kehagias, A. Salamanis, P. Spanidis, M. Kyrkoy, D. Tzovaras, "An innovative crowdsourcing framework for reporting free parking spots in urban traffic networks", 6th Conference on Sustainable Urban Mobility 2022 (CSUM 2022), Smart Energy for Smart Transport, Skiathos Island, Greece, 31 August – 2 September 2022
  6. P. Spanidis, M. Kyrkou, G. Christainas, A. Salamanis, D. Kehagias, "An innovative mobile application for booking parking spaces", 6th Conference on Sustainable Urban Mobility 2022 (CSUM 2022), Smart Energy for Smart Transport, Skiathos Island, Greece, 31 August – 2 September 2022
  7. M. Mathioudaki, D. Tsoukalas, M. Siavvas, D. Kehagias, "Comparing Univariate and Multivariate Time Series Models for Technical Debt Forecasting", in 22nd International Conference on Computational Science and Its Applications (ICCSA 2022), July 4 - 7, 2022, Malaga, Spain
  8. T. Varelas, A. Pentefountas, D. Kehagias, D. Tzovaras, "Reconstruction of Ancient Settlement of Akrotiri, Thira in 1613 BC in the Context of an Integrated Virtual Reality Serious Game", (IN)TANGIBLE HERITAGE(S), June 15-17, Cantenburry, 2022.
  9. G. Christainas, A. Kampyli, D. Kehagias, M. Kyrkou, S. Kontogiannis, P. Machaira, A. Paraskevopoulos, A. Salamanis, P. Spanidis, N. Zacharatos, C. Zaroliagis, "SocialPark: An integrated Parking-as-a-Service platform for facilitating search of vacant parking lots based on crowd-sourced Information", 14th ITS European Congress, Toulouse, France, 30 May-1 June 2022
  10. D. Tsoukalas, A. Chatzigeorgiou, A. Ampatzoglou, N. Mittas, D. Kehagias, "TD Classifier: Automatic Identification of Java Classes with High Technical Debt", 5th International Conference on Technical Debt (TechDebt2022), Sun 22 - Mon 23 May 2022, Pennsylvania, United States
  11. E. Jelisić, M. Janković, N. Ivezić, B. Kulvatunyou, D. Kehagias, Z. Marjanović, "Business context-based approach for Digital Twin services integration.", In: Zdravković, M., Trajanović, M., Konjović, Z. (Eds.) ICIST 2022 Proceedings, pp.198-202, 2022.
  12. T. Varelas, A. Pentefountas, A. Sinani, M. Tsimpoura, D. Kehagias, A. Tsakiris, D. Tzovaras, A. Kontonikolaou, "Activator: An interactive and immersive educational VR platform for promoting the value of ancient Greek civilization", ICSHMS April 10 2022 Nicosia, Cyprus, 2022.
  13. M. Siavvas, E. Gelenbe, D. Tsoukalas, I. Kalouptsoglou, M. Mathioudaki, M. Nakip, D. Kehagias, D. Tzovaras, "The IoTAC Software Security-by-Design Platform: Concept, Challenges, and Preliminary Overview", . In 2022 18th International Conference on the Design of Reliable Communication Networks (DRCN) 2022 Mar 28 (pp. 1-6). IEEE.
  14. N. Ivezić, E. Jelisić, M. Janković, B. Kulvatunyou, D. Kehagias, Z. Marjanović, "Advancing Data Exchange Standards for Interoperable Enterprise Networks.", In: Proceedings of Interoperability for Enterprise Systems and Applications Workshops co-located with I-ESA 2022, Valencia, Spain, March 23-25 2022, ISSN 1613-0073.
  15. C. Marantos, M. Siavvas, D. Tsoukalas, C. Lamprakos, L. Papadopoulos, P. Boryszko, K. Filus, J. Domanska, A. Ampatzoglou, A. Chatzigeorgiou, E.Gelenbe, D. Kehagias, D. Soudris, "SDK4ED: One-click platform forEnergy-aware, Maintainable and Dependable Applications", 25th Design,Automation and Test in Europe Conference (DATE '22), Belgium, 2022.
  16. C. Giro, A. Salamanis, T. Zotos, D. Kehagias, D. Tzovaras, S. Tsegay, "Towards establishing a unique and technically sustainable Mobility Token driven Mobility-as-a-Service (MaaS)", ITS World Congress 2021, Mon, Oct 11, 2021 – Fri, Oct 15, 2021, Hamburg, Germany
  17. M. Siavvas, I. Kalouptsoglou, D. Tsoukalas, D. Kehagias, "A self-adaptive approach for assessing thecriticality of security-related static analysis alerts", 21st International Conference on Computational Science and Applications (ICCSA 2021)
  18. M. Mathioudaki, D. Tsoukalas, M. Siavvas, D. Kehagias, "Technical Debt Forecasting based on Deep Learning Techniques", in 21st International Conference on Computational Science and Its Applications (ICCSA 2021)
  19. I. Kalouptsoglou, M. Siavvas, D. Kehagias, A. Chatzigeorgiou, A. Apostolos, "An Empirical Evaluation of the Usefulness of Word Embedding Techniques in Deep Learning-based Vulnerability Prediction", EuroCyberSec2021, Springer, LNCS, 2021
  20. E. Gelenbe, M. Nakip, I. Kalouptsoglou, M. Siavvas, D. Kehagias, "System Vulnerability Prediction using the Adversarial Random Neural Network", EuroCybersec 2021, Nice, France, 2021, Springer Cham., LNCS
  21. D. Tsoukalas, M. Siavvas, M. Mathioudaki, D. Kehagias, "An Ontology-based Approach for Automatic Specification, Verification, and Validation of Software Security Requirements: Preliminary Results", IEEE International Conference on Software Quality, Security, and Reliability, 2021, IEEE
  22. A. Salamanis, G. Christainas, D. Kehagias, D. Tzovaras, "A Graph-Based Reputation Assessment System for Online Review Communities", The 2020 IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT '20), 14-17 December, 2020.
  23. M. Jankovic, M. Siavvas, D. Tsoukalas, D. Kehagias, "Evaluating and Improving the Internal Security of OPC-UA based Software Applications", 10th International Conference on Interoperability for Enterprise Systems and Applications (I-ESA 2020),Trabes France, November 17-20 2020.
  24. A. Salamanis, D. Kehagias, K. Kalogirou, D. Tzovaras, "A Matchmaking Module for Real-World MaaS Applications", 14th ITS European Congress, Lisbon, Portugal, 18-20 May 2020, 9-10 November, 2020.
  25. I. Kalouptsoglou, M. Siavvas, D. Tsoukalas, D. Kehagias, "Cross-Project Vulnerability Prediction Based on Software Metrics and Deep Learning", In International Conference on Computational Science and Its Applications (pp. 877-893). Springer, Cham, 2020
  26. M. Siavvas, D. Tsoukalas, C. Marantos, A. Tsintzira, M. Jankovic, D. Soudris, A. Chatzigeorgiou, D. Kehagias, "The SDK4ED Platform for Embedded Software Quality Improvement-Preliminary Overview", In International Conference on Computational Science and Its Applications (pp. 1035-1050). Springer, Cham, 2020.
  27. T. Varelas, A. Pentefoundas, C. Georgiadis, D. Kehagias, "An AR indoor positioning system based on anchors", 2nd ICSTR Athens – International Conference on Science & Technology Research, Athens, 12 Oct. 2020.
  28. A. Salamanis, T. Ioakeimidis, D. Kehagias, M. Gkemou, D. Tzovaras, "MyCorridor MaaS: A stakeholder-inclusive MaaS platform",Transport Research Arena 2020, Helsinki, Finland (2020, April 27-30).
  29. A. Ampatzoglou, A. A. Tsintzira, E. M. Arvanitou, A. Chatzigeorgiou, I. Stamelos, A. Moga, R. Heb, O. Matei, N. Tsiridis, D. Kehagias, "Applying the single responsibility principle in industry: Modularity benefits and trade-offs.", In Proceedings of the 23rd International Conference on Evaluation and Assessment in Software Engineering (pp. 347-352).
  30. A. Salamanis, T. Ioakeimidis, D. Kehagias, M. Gkemou, D. Tzovaras, "Mobility services data models for open and inclusive MaaS infrastructures",2nd International Conference on Mobility as a Service. December 3 – 4, 2019.
  31. D. Tsoukalas, M. Jankovic, M. Siavvas, D. Kehagias, A. Chatzigeorgiou, D. Tzovaras, "On the Applicability of Time Series Models for Technical Debt Forecasting",15th China-Europe International Symposium on Software Engineering Education (CEISEE). May 30 – 31, 2019.
  32. M. Jankovic, D. Kehagias, M. Siavvas, D. Tsoukalas, A. Chatzigeorgiou, "The SDK4ED Approach to Software Quality Optimization and Interplay Calculation", 15th China-Europe International Symposium on Software Engineering Education (CEISEE). May 30 – 31, 2019.
  33. E. Mastorakis, A. Salamanis, D. Kehagias, D. Tzovaras, "On the Evaluation of a Cluster-Based Reputation Assessment Mechanism for Carpooling Applications",5th International Conference on Vehicle Technology and Intelligent Transport Systems. Heraklion, Crete, Greece, 3 – 5 May, 2019.
  34. A. Ampatzoglou, A. Tsintzira, E. Arvanitou, A. Chatzigeorgiou, I. Stamelos, A. Moga, R. Heb, O. Matei, N. Tsiridis, D. Kehagias, "Benefits of Applying the Single Responsibility Principle to Repay Technical Debt: An Industrial Case Study", In Proceedings of 23rd Conference on the Evaluation and Assessment in Software Engineering (EASE’ 19), Copenhagen, Denmark, 15-17 April 2019.
  35. M. Siavvas, C. Marantos, L. Papadopoulos, D. Kehagias, D. Soudris, D. Tzovaras, "On the Relationship between Software Security and Energy Consumption",15th China-Europe International Symposium on Software Engineering Education (CEISEE). May 30 – 31, 2019.
  36. M. Siavvas, D. Tsoukalas, M. Jankovic, D. Kehagias, A. Chatzigeorgiou, D. Tzovaras, N. Anicic, E. Gelenbe, "An Empirical Evaluation of the Relationship between Technical Debt and Software Security",9th International Conference on Information Society and Technology (ICIST2019), March, 10 – 13, 2019.
  37. D. Tsoukalas, M. Siavvas, M. Jankovic, D. Kehagias, A. Chatzigeorgiou, D. Tzovaras, "Methods and Tools for TD Estimation and Forecasting: A State-of-the-art Survey",In 2018 International Conference on Intelligent Systems (IS) (pp. 698-705). IEEE, (2018, September).
  38. M. Siavvas, M. Jankovic, D. Kehagias, D. Tzovaras, "Is Popularity an Indicator of Software Security?",In 2018 International Conference on Intelligent Systems (IS) (pp. 692-697). IEEE, (2018, September).
  39. N. Dimokas, K. Kalogirou, P. Spanidis, D. Kehagias, "A Mobile Application for Multimodal Trip Planning.", 9th International Conference on Information, Intelligence, Systems and Applications (IISA 2018), 23 - 25 July, Zakynthos, Greece, 2018.
  40. K. Kalogirou, N. Dimokas, Tsami, D. Kehagias, "Smart Mobility Combining Public Transport with Carpooling: An iOS Application Paradigm.", 16th IEEE International Conference on Smart City (SmartCity-2018), 28-30 June, Exeter, UK, 2018.
  41. D. Gavalas, K. Giannakopoulou, V. Kasapakis, D. Kehagias, C. Konstantopoulos, S. Kontogiannis, D. Kypriadis, G. Pantziou, A. Paraskevopoulos, C. Zaroliagis, "Renewable Mobility in Smart Cities: Cloud-Based Services.", In 2018 IEEE Symposium on Computers and Communications (ISCC) (pp. 01280-01285). IEEE, June 2018
  42. I. Kalamaras, A. Drosou, K. Votis, D. Kehagias, D. Tzovaras, "A multi-objective data mining approach for road traffic prediction", 14th International Conference on Artificial Intelligence Applications and Innovations (AIAI 2018), Rhodes, Greece, May 2018.
  43. D. Tsoukalas, A. Salamanis, D. Kehagias, D. Tzovaras, "A Maintainable and Secure Backend Infrastructure for Carpooling Applications", Transportation Research Arena 2018 (TRA 2018), Vienna, Austria, 16-19 April 2018.
  44. M. Siavvas, E. Gelenbe, D. Kehagias, D. Tzovaras, "Static analysis-based approaches for secure software development", in Proceedings of the 2018 ISCIS Security Workshop: Recent Cybersecurity Research in Europe, vol. 821, Lecture Notes CCIS, Springer Verlag, London, UK, Feb. 2018.
  45. D. Soudris, L. Papadopoulos, C. Kessler, D. Kehagias, A. Papadopoulos, P. Seferlis, A. Chatzigeorgiou, "et al. EXA2PRO programming environment: architecture and applications.", In Proceedings of the 18th International Conference on Embedded Computer Systems: Architectures, Modeling, and Simulation, pp. 202-209. ACM, 2018.
  46. M. Siavvas, D. Kehagias, D. Tzovaras, "A Preliminary Study on the Relationship among Software Metrics and Specific Vulnerability Types", in the 2017 International Conference on Computational Science and Computational Intelligence – Symposium on Software Engineering (CSCI-ISSE), Las Vegas, USA, 14-16 Dec. 2017.
  47. M. Gkemou, R. Palacin, E. Bekiaris, D. Kehagias, D. Tzovaras, V. Mizaras, Y. Larios, "Mobility as a Service (MaaS) in a multimodal European cross-border corridor", 8th International Congress on Transportation Research (ICTR 2017), Thessaloniki, Greece, 27 – 29 Sep. 2017.
  48. M. Gkemou, F. Fischer, E. Bekiaris, D. Kehagias, D. Tzovaras, "Low-cost innovative implementation towards self-explaining and forgiving road interactive applications", 8th International Congress on Transportation Research (ICTR 2017), Thessaloniki, Greece, 27–29 Sep. 2017.
  49. A. Salamanis, D. Tsoukalas, D. Kehagias, D. Tzovaras, "A Reputation Assessment System for Carpooling Applications", 8th International Congress on Transportation Research (ICTR 2017), Thessaloniki, Greece, 27–29 Sep. 2017.
  50. G. Xanthopoulou, A. Salamanis, D. Kehagias, I. Antoniou, C. Bratsas, D. Tzovaras, "Forecasting Power Output of Photovoltaic Systems Using Linear, Non-Linear and Enhanced Models", in International Work-Conference on Time Series Analysis (ITISE 2017), Granada, Spain, 18-20 Sep. 2017.
  51. T. Theodorou, A. Salamanis, D. Kehagias, D. Tzovaras, "Short-Term Traffic Prediction Under both Typical and Atypical Traffic Conditions using a Pattern Transition Model", 3rd International Conference on Vehicle Technology and Intelligent Transport Systems, Porto, Portugal, 22-24 Ap. 2017.
  52. J. Dibbelt, D. Kehagias, G. Pantziou, D. Gavalas, C. Konstantopoulos, D. Wagner, K. Giannakopoulou, S. Kontogiannis, C. Zaroliagis, "Eco-aware vehicle routing in urban environments.", In Computers and Communications (ISCC), 2017 IEEE Symposium on, pp. 208-213. IEEE, 2017.
  53. A. Salamanis, T. Theodorou, D. Kehagias, D. Tzovaras, "A Regime-Switching Model for Short-Term Traffic Prediction under both Typical and Atypical Conditions", NIPS Workshop: Machine Learning for Spatiotemporal Forecasting, Spain, Dec. 2016.
  54. A. Salamanis, G. Margaritis, D. Kehagias, G. Matzoulas, D. Tzovaras, "Identifying patterns under both normal and abnormal traffic conditions for short-term traffic prediction", 19th EURO Working Group on Transportation Meeting (EWGT), Istanbul, Turkey, 05-07 Sep. 2016.
  55. A. Salamanis, A. Drosou, D. Michalopoulos, D. Kehagias, D. Tzovaras, "A Probabilistic Framework for the Reliability Assessment of Crowd Sourcing Urban Traffic Reports", 6th European Transport Research Conference – Moving Forward: Innovative Solutions for Tomorrow’s Mobility (TRA), Warsaw, Poland, 18-21 April 2016, pp 1-10.
  56. K. Giannoutakis, D. Kehagias, D. Tzovaras, "A three-level semantic categorization scheme of Web Services", In Proceedings of the 8th IEEE International Conference on Service Oriented Computing & Applications (SOCA 2015), Rome, Italy, 19-21 Oct. 2015.
  57. A. Salamanis, P. Meladianos, D. Kehagias, D. Tzovaras, "Evaluating the Effect of Time Series Segmentation on STARIMA-based Traffic Prediction model", In Proceedings of the 18th International IEEE Conference on Intelligent Transportation Systems (ITSC 2015), Canary Islands, Spain, 15-18 Sep. 2015.
  58. E. Gakis, D. Kehagias, D. Tzovaras, "Mining Traffic Data for Road Incidents Detection", In Proceedings of the 17th International IEEE Conference on Intelligent Transportation Systems (ITSC 2014), Qingdao, China, 8-11 Oct. 2014.
  59. D. Kehagias, A. Salamanis, D. Tzovaras, "Using speed dynamics for short-term traffic forecasting", In Proceedings of the 10th ITS European Congress, Helsinki, Finland, 16-19 Jun. 2014.
  60. T. Diamantopoulos, D. Kehagias, F. Konig, D. Tzovaras, "Use of density-based cluster analysis and classification techniques for traffic congestion prediction and visualization", In Transport Research Arena (TRA 2014), Paris, France, 14-17 Apr. 2014.
  61. C. Ioakimidis, A. Zabala, D. Simic, D. Kehagias, A. Miralles, "A smart phone version of an urban e-transportation reservation service.", Electric Vehicle Symposium and Exhibition (EVS27), 2013 World, 17-20 Nov, Barcelona, Spain, pp. 1-8, 2013.
  62. T. Diamantopoulos, D. Kehagias, F. G. Konig, D. Tzovaras, "Investigating the Effect of Global Metrics in Travel Time Forecasting", Proceedings of IEEE 16th International Conference on Intelligent Transportation Systems (IEEE ITSC 2013), Hague, The Netherlands, pp. 412-417, 6-9 Oct. 2013, pp. 412-417.
  63. E. Mavridou, G. Hassapis, D. Kehagias, D. Tzovaras, "Semantic Categorization of Web Services based on Feature Space Transformation", 16th Panhellenic Conference on In Informatics (PCI), IEEE, Oct. 2012, pp. 162-167.
  64. C. Malavazos, D. Ioannidis, D. Kehagias, D. Tzovaras, "Energy and Behavioural Modelling and Simulation for ee-Buildings Design", 2nd Workshop on eeBuildings Data Models, CIB Conference W078-W012, Sophia Antipolis, France, 26-28 Oct. 2011, pp. 92-105.
  65. D. Kehagias, D. Tzovaras, "An Ontology for Mobility Impaired User Needs and Services", International Conference on Knowledge Engineering an Ontology Development, KEOD 2010, Valencia, Spain, 25-28 Oct. 2010.
  66. D. Kehagias, D. Kontotasiou, D. Tzovaras, "Evaluation Framework for Ontology Development and Management Methodologies", ORES2010, 7th Extended Semantic Web Conference, (ESWC10), Heraklion, Greece, 30 May – 3 June 2010.
  67. D. Kehagias, D. Tzovaras, E. Mavridou, K. Kalogirou, M. Becker, "Implementing an open reference architecture based on web service mining for the integration of distributed applications and multi-agent Systems", 9th International Conference on Autonomous Agents and Multiagent Systems, (AAMAS 2010) Toronto Canada, 10-14 May 2010.
  68. D. Kehagias, E. Mavridou, K. Giannoutakis, D. Tzovaras, "A WSDL structure based approach for semantic categorization of web service elements", 6th Hellenic Conference on Artificial Intelligence, (SETN 2010) Athens, Greece, 4-7 May 2010.
  69. D. Kehagias, D. Ioannidis, D. Tzovaras, "Towards seamless semantic integration of Web services: An ontology-based three-layer approach", 1st OASIS International Conference, Florence, Italy, 4-5 Nov. 2009.
  70. D. Kontotasiou, D. Kehagias, D. Tzovaras, "A survey of ontology development and management methodologies", 1st OASIS International Conference, Florence, Italy, 4-5 Nov. 2009.
  71. D. Giakoumis, D. Tzovaras, D. Kehagias, E. Bekiaris, G. Hassapis, "An Integrated Approach towards the Homogeneous Provision of Geographically Dispersed Info-Mobility Services to Mobile Users", HCI International 2009 (HCII 2009), San Diego, California, USA, 19-24 July 2009, pp. 385-394.
  72. E. Mavridou, D. Kehagias, K. Kalogirou, D. Tzovaras, "An Agent-based Data Mining Framework for Mass Customization in the Automotive Industry", in Proceedings of the 2008 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology – Workshops, Sydney, NSW, Australia, 9-12 Dec. 2008.
  73. D. Kehagias, A. Garcia-Castro, D. Giakoumis, D. Tzovaras, "A Semantic Web Service Alignment Tool", 7th International Semantic Web Conference, Karlsruhe, Germany, 26-30 Oct. 2008.
  74. D. Kehagias, D. Giakoumis, D. Tzovaras, "An ontology-based service-oriented application for mobility impaired users", 7th International Semantic Web Conference, Karlsruhe, Germany, 26-30 Oct. 2008.
  75. D. Kehagias, D. Tzovaras, "An ontology-based framework for Web service integration and delivery to mobility impaired users", Springer CCIS, vol. 19, Official Proceedings of 1st World Summit on the Knowledge Society, Athens, Greece, 24-28 Sep. 2008.
  76. D. Kehagias, D. Giakoumis, D. Tzovaras, "An Ontology-based Framework for Integrating Web Services for Mobility Impaired Users", 2nd ASK-IT International Conference, Nueremberg, Germany, 25-27 Jun. 2008.
  77. D. Kehagias, D. Kontotasiou, D. Tzovaras, E. Bekiaris, "Preliminary Architecture of the OASIS Content Connector Module", 2nd ASK-IT International Conference, Nueremberg, Germany, 25-27 Jun. 2008.
  78. D. Kehagias, I. Papadimitriou, J. Hois, D. Tzovaras, J. Bateman, "A Methodological Approach for Ontology Evaluation and Refinement", 2nd ASK-IT International Conference, Nueremberg, Germany, 25-27 Jun. 2008.
  79. D. Kehagias, P.A. Mitkas, "Efficient E-Commerce Agent Design Based on Clustering eBay Data", in Proceedings of the 2007 IEEE/WIC/ACM Int. Conferences on Web Intelligence and Intelligent Agent Technology – Workshops, pp. 495-498, November 2-5, 2007
  80. M. Wiethoff, S.M. Sommer, S. Valjakka, K.V. Isacker, D. Kehagias, E. Bekiaris, "Specification of Information Needs for the Development of a Mobile Communication Platform to Support Mobility of People with Functional Limitations", In: Universal Access in Human-Computer Interaction. Ambient Interaction. Lecture Notes in Computer Science Vol. 4555, pp. 595-604, Springer-Verlag Berlin Heidelberg, July 22-27, 2007
  81. D. Kehagias, I. Tsampoulatidis, P. Daras, D. Tzovaras, "Ontologies for Mobility Impaired User Information Needs in the Domain of Tourism and Leisure", ASK-IT International Conference, Nice, France, Oct. 2006.
  82. D. Kehagias, E. Bekiaris, I. Tsampoulatidis, D. Tzovaras, "An Ontological Framework for Mobility Impaired Users Service Provision", 3rd International conference on Terminology, Standardization and Technology Transfer (TSTT), Beijing, People’s Republic of China, 25-26 Aug. 2006.
  83. D. Kehagias, P. Toulis, P. Mitkas, "A Long-Term Profit Seeking Strategy for Continuous Double Auctions in a Trading Agent Competition", in Lecture Notes in Computer Science 3955 Springer, pp. 116-126, May 18-20, 2006
  84. P. Toulis, D. Kehagias, P. Mitkas, "Mertacor: A Successful Autonomous Trading Agent", in 5th Intl. Joint Conference on Autonomous Agents and Multiagent Systems (AAMAS’06), pp. 1191-1198, 9 May 2006
  85. D. Kehagias, P.A. Mitkas, "Adaptive pricing functions for open outcry auctions", in IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT-2005), pp. 653-656, 19-22 Sept. 2005
  86. A.L. Symeonidis, K.C. Chatzidimitriou, D. Kehagias, P.A. Mitkas, "An Intelligent Recommendation Framework for ERP Systems", in the IASTED International Conference on Artificial Intelligence and Applications, pp. 715-720, February 14 – 16, 2005
  87. D. Kehagias, K. Chatzidimitriou, A. Symeonidis, P. A. Mitkas, "Information Agents Cooperating with Heterogeneous Data Sources for Customer-Order Management", in the 19th Annual ACM Symposium on Applied Computing, pp. 52-57, March 2004
  88. P. A. Mitkas, D. Kehagias, A. L. Symeonidis, I. N. Athanasiadis, "A Framework for Constructing Multi-Agent Applications and Training Intelligent Agents", in Lecture Notes in Computer Science, 2935, pp. 96–109, Springer-Verlag, December 2003
  89. P. A. Mitkas, D. Kehagias, A. L. Symeonidis, I. N. Athanasiadis, "Agent Academy: An integrated tool for developing multi-agent systems and embedding decision structures into agents", in the First European Workshop on Multi-Agent Systems (EUMAS 2003), December 2003
  90. P. A. Mitkas, A. L. Symeonidis, D. Kehagias, I. N. Athanasiadis, "Application of Data Mining and Intelligent Agent Technologies to Concurrent Engineering", in: Proceedings of the 10th International Conference on Concurrent Engineering (CE-2003), Madeira, Portugal, pp. 11-18, July 2003
  91. A. L. Symeonidis, D. Kehagias, A. Koumpis, A. Vontas, "Open Source Supply Chains", in 10th International Conference on Concurrent Engineering (CE-2003), Madeira, Portugal, July 2003
  92. P. A. Mitkas, A. L. Symeonidis, D. Kehagias, "An agent framework for dynamic agent retraining: Agent Academy", In: B. Stanford-Smith, E. Chiozza, and M. Edin, eds., Challenges and Achievements in e-business and e-work, (eBusiness and eWork 12th annual conference and exhibition), pp. 757-764, IOS Press, December 2002
  93. A. L. Symeonidis, P. A. Mitkas, D. Kehagias, "Mining patterns and rules for improving agent intelligence through an integrated multi agent platform", 6th IASTED International Conference, Artificial Intelligence and Soft Computing (ASC 2002), Banff, Alberta, Canada, July 2002
  94. D. Kehagias, A. Symeonidis, P. Mitkas, "Towards improving Multi-Agent Simulation in safety management and hazard control environments", 2002 AI, Simulation and Planning in High Autonomous Systems - AIS'2002, 7-10 April, Lisbon, Portugal, 2002
  95. D. Kehagias, G. A. Triantafyllidis, D. Sampson, V. Mitropoulou, C. Vasilopoulos, "Design and Development of Educational Software of Guided Discovery for supporting Religion Studies in Secondary Education", in Proc. of the National Conference on Informatics and Education, pp. 47, University of Macedonia, Greece, November 2000
  96. D. Kehagias, G. A. Triantafyllidis, D. Sampson, V. Mitropoulou, C. Vasilopoulos, "Educational Software for Teaching Religions", in Proc. of the 2nd National Conference on ICT in Education, University of Patras, New Technologies Pub., October 2000
  97. D. Kehagias, G. Triantafyllidis, Y. Melidis, K. Akanthopoulou, Ch. Vasilopoulos, D. Sampson, "Open-Ended Educational Software of Guided Discovery for supporting Religion Studies Classes", in Proc. of the 3nd National Workshop on Informatics in the Secondary Education, ISBN: 9607203313, pp. 178-181, Athens, Greece, Doukas Pub., February 2000

Κεφάλαια Βιβλίων

  1. C. Tsita, C. Georgiadis, M. Zampeti, E. Papavergou, S. Tsiara, A. Pedefoudas, D. Kehagias, "An Approach to Facilitate Visitors’ Engagement with Contemporary Art in a Virtual Museum.", In: Moropoulou, A., Georgopoulos, A., Doulamis, A., Ioannides, M., Ronchi, A. (eds). Trandisciplinary Multispectral Modelling and Cooperation for the Preservation of Cultural Heritage. TMM_CH 2021. Communications in Computer and Information Science, vol 1574. Springer, Cham. https://doi.org/10.1007/978-3-031-20253-7_17
  2. D. Gavalas, K. Giannakopoulou, V. Kasapakis, D. Kehagias, C. Konstantopoulos, S. Kontogiannis, D. Kypriadis, G. Pantziou, A. Paraskevopoulos, C. Zaroliagis, "Renewable Mobility in Smart Cities: The MOVESMART approach.", Smart Technologies for Smart Cities, EAI/Springer Innovations in Communication and Computing (Springer 2020), pp.135-157.
  3. M.-R. Tazari, F. Furfari, A. Fides Valero, S. Hanke, O. Hoftberger, D. Kehagias, M. Mosmondor, R. Wichert, P. Wolf, "The universal Reference Model for AAL.", In: Augusto J.-C. et al (Eds); Handbook of Ambient Assisted Living - Technology for Healthcare, Rehabilitation, and Well-being, ISBN: 978-1-60750-836-6, IOS Press, Series "Ambient Intelligence and Smart Environments", Volume 11, Jan 15, 2012, pp. 610 - 625.
  4. D. Kehagias, D. Tzovaras, G. Gravvanis, "Agent-based discovery, composition and orchestration of grid web services", Series:Computer Science, Technology and Applications, in: Recent developments in Grid Technology and Applications, Nova Science Publishers, 2010
  5. D. Kehagias, D. Giakoumis, D. Tzovaras, E. Bekiaris, M. Wiethoff, "An Ambient Intelligence Framework for the Provision of Geographically Distributed Multimedia Content to Mobility Impaired Users", In: Markus A., Cereijo R.A. Sala R. (eds.) Beyond Mobile TV: Mobile Storytelling, Creation, and Sharing, Springer, 2010
  6. M. Wiethoff, S. Sommer, S. Valjakka, K. V. Isacker, D. Kehagias, D. Tzovaras, "User Needs for Mobility Improvement for people with Functional Limitations", In S. Pinder (ed.) Advances in Human-Computer Interaction, I-Tech, Oct. 2008
  7. S. M. Sommer, M. Wiethoff, S. Valjakka, D. Kehagias, D. Tzovaras, "Development of a Mobile Tourist Information System for People with Functional Limitations: User Behaviour Concept and Specification of Content Requirements", Computers Helping People with Special Needs, Lecture Notes in Computer Science, Springer Berlin / Heidelberg, Volume 4061/2006, ISBN 978-3-540-36020-9, Wednesday, July 19, 2006.
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