Costas Vassilakis

195 papers A 3B 20C 14Misc 8Journal 87Unranked 63

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A Large-Scale Empirical Study of LLM Orchestration and Ensemble Strategies for Sentiment Analysis in Recommender Systems. Future Internet Konstantinos I. Roumeliotis, Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2026	J	`jnl`	Optimizing Collaborative Filtering for Accurate Rating Predictions in Very Sparse Datasets. Future Internet Sofia-Anna Lapadaki, John Nanos, Dionisis Margaris, Costas Vassilakis, Dimitris Spiliotopoulos
2025	J	`jnl`	A Machine Learning Framework for Harvesting and Harmonizing Cultural and Touristic Data. Inf. Kimon Deligiannis, Christos Tryfonopoulos, Paraskevi Raftopoulou, Costas Vassilakis, Vassilis Kaffes, Spiros Skiadopoulos
2025	J	`jnl`	A generalized, rule-based method for the detection of intermittent faults in software programs. J. Syst. Softw. Panagiotis Sotiropoulos, Costas Vassilakis
2025	J	`jnl`	AI and Related Technologies in the Fields of Smart Agriculture: A Review. Inf. Fotis Assimakopoulos, Costas Vassilakis, Dionisis Margaris, Konstantinos Kotis, Dimitris Spiliotopoulos
2025	J	`jnl`	An evaluation review of user similarity metrics in sparse collaborative filtering datasets. Int. J. Data Sci. Anal. Kiriakos Sgardelis, Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2025	J	`jnl`	From Rating Predictions to Reliable Recommendations in Collaborative Filtering: The Concept of Recommendation Reliability Classes. Big Data Cogn. Comput. Dionisis Margaris, Costas Vassilakis, Dimitris Spiliotopoulos
2025	Misc	`conf`	MiniLib: A flow analysis-based approach for attack surface reduction through software debloating. CSR Loukas Kopanias, Panagiotis Sotiropoulos, Nicholas Kolokotronis, Costas Vassilakis
2025	—	`conf`	On the use of pharmacies to establish a defibrillator network. SMAP Manolis Wallace, Christos Champilomatis, Panagiota Ventirozou, Georgios Pappas, Vasssilis Poulopoulos, Costas Vassilakis
2025	J	`jnl`	Stitching History into Semantics: LLM-Supported Knowledge Graph Engineering for 19th-Century Greek Bookbinding. Mach. Learn. Knowl. Extr. Dimitrios Doumanas, Efthalia Ntalouka, Costas Vassilakis, Manolis Wallace, Konstantinos Kotis
2024	J	`jnl`	Challenges and Trends in Student Evaluation of Teaching: Analysis of SET Data from the University of Peloponnese. Inf. Ilias Papadogiannis, Costas Vassilakis, Manolis Wallace, Athanassios Katsis
2024	—	`conf`	Estimating MPdist with SAX and Machine Learning. ADBIS (Short Papers) Mihalis Tsoukalos, Pantelis Chronis, Nikos Platis, Costas Vassilakis
2024	J	`jnl`	Exploiting Rating Prediction Certainty for Recommendation Formulation in Collaborative Filtering. Big Data Cogn. Comput. Dionisis Margaris, Kiriakos Sgardelis, Dimitris Spiliotopoulos, Costas Vassilakis
2024	C	`conf`	Improving Recommendation Quality in Collaborative Filtering by Including Prediction Confidence Factors. WEBIST Kiriakos Sgardelis, Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis, Stefanos Ougiaroglou
2024	—	`conf`	Predicting Agricultural Product and Supplies Prices Using Artificial Intelligence. KMIS Ioannis Dionissopoulos, Fotis Assimakopoulos, Dimitris Spiliotopoulos, Dionisis Margaris, Costas Vassilakis
2024	J	`jnl`	The Implementation of "Smart" Technologies in the Agricultural Sector: A Review. Inf. Fotis Assimakopoulos, Costas Vassilakis, Dionisis Margaris, Konstantinos Kotis, Dimitris Spiliotopoulos
2023	C	`conf`	A User Interface for Tuning QoS Parameters in Recommendation-Based Business Process Scenario Adaptation. WEBIST Kiriakos Sgardelis, Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2023	J	`jnl`	Blockchain meets Internet of Things (IoT) forensics: A unified framework for IoT ecosystems. Internet Things Sotirios Brotsis, Konstantinos-Panagiotis Grammatikakis, Dimitrios Kavallieros, Antonio I. Mazilu, Nicholas Kolokotronis, Konstantinos Limniotis, Costas Vassilakis
2023	J	`jnl`	Chatbots for Cultural Venues: A Topic-Based Approach. Algorithms Vasilis Bouras, Dimitris Spiliotopoulos, Dionisis Margaris, Costas Vassilakis, Konstantinos Kotis, Angeliki Antoniou, George Lepouras, Manolis Wallace, Vassilis Poulopoulos
2023	J	`jnl`	Disruptive Technologies for Parliaments: A Literature Review. Future Internet Dimitris Koryzis, Dionisis Margaris, Costas Vassilakis, Konstantinos Kotis, Dimitris Spiliotopoulos
2023	—	`conf`	Estimating iSAX Parameters for Efficiency. ADBIS (Short Papers) Mihalis Tsoukalos, Nikos Platis, Costas Vassilakis
2023	J	`jnl`	Improving collaborative filtering's rating prediction accuracy by introducing the experiencing period criterion. Neural Comput. Appl. Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis, Dionysios Vasilopoulos
2023	Misc	`conf`	Minimizing Software-Rooted Risk through Library Implementation Selection. CSR Panagiotis Sotiropoulos, Christos-Minas Mathas, Costas Vassilakis, Nicholas Kolokotronis
2023	J	`jnl`	Rating Prediction Quality Enhancement in Low-Density Collaborative Filtering Datasets. Big Data Cogn. Comput. Dionisis Margaris, Costas Vassilakis, Dimitris Spiliotopoulos, Stefanos Ougiaroglou
2023	Misc	`conf`	RoG§: A Pipeline for Automated Sensitive Data Identification and Anonymisation. CSR Sotirios Nikoletos, Stefanos Vlachos, Efstathios Zaragkas, Costas Vassilakis, Christos Tryfonopoulos, Paraskevi Raftopoulou
2022	—	`conf`	Anchoring Effect Mitigation for Complex Recommender System Design. HCI (41) Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2022	J	`jnl`	Multichannel Digital Marketing Optimizations through Big Data Analytics in the Tourism and Hospitality Industry. J. Theor. Appl. Electron. Commer. Res. Damianos P. Sakas, Dimitrios P. Reklitis, Marina C. Terzi, Costas Vassilakis
2022	J	`jnl`	On Exploiting Rating Prediction Accuracy Features in Dense Collaborative Filtering Datasets. Inf. Dimitris Spiliotopoulos, Dionisis Margaris, Costas Vassilakis
2022	J	`jnl`	On Producing Accurate Rating Predictions in Sparse Collaborative Filtering Datasets. Inf. Dionisis Margaris, Costas Vassilakis, Dimitris Spiliotopoulos
2022	—	`conf`	Persona Finetuning for Online Gaming Using Personalisation Techniques. HCI (42) Dimitris Spiliotopoulos, Dionisis Margaris, Kostas N. Koutrakis, Panos I. Philippopoulos, Costas Vassilakis
2022	J	`jnl`	The additional testsuite framework: facilitating software testing and test management. Int. J. Web Eng. Technol. Panagiotis Sotiropoulos, Costas Vassilakis
2021	—	`conf`	A System for Collecting, Managing, Analyzing and Sharing Diverse, Multi-Faceted Cultural Heritage and Tourism Data. SMAP Kimon Deligiannis, Paraskevi Raftopoulou, Christos Tryfonopoulos, Costas Vassilakis
2021	J	`jnl`	A Trust Management System for the IoT domain. CoRR Christos-Minas Mathas, Costas Vassilakis, Nicholas Kolokotronis
2021	—	`conf`	A User Interface for Personalising WS-BPEL Scenarios. HCI (22) Dionisis Margaris, Dimitris Spiliotopoulos, Dionysios Vasilopoulos, Costas Vassilakis
2021	—	`conf`	An Interface for User-Centred Process and Correlation Between Large Datasets. HCI (18) Dimitris Spiliotopoulos, Tauheodoros Giannakopoulos, Costas Vassilakis, Manolis Wallace, Marina Lantzouni, Vassilis Poulopoulos, Dionisis Margaris
2021	Misc	`conf`	Cyber-Security Training Evaluation Metrics. CSR Nikolaos Koutsouris, Costas Vassilakis, Nicholas Kolokotronis
2021	J	`jnl`	On Addressing the Low Rating Prediction Coverage in Sparse Datasets Using Virtual Ratings. SN Comput. Sci. Dionisis Margaris, Dimitris Spiliotopoulos, Gregory Karagiorgos, Costas Vassilakis, Dionysios Vasilopoulos
2021	J	`jnl`	On Blockchain Architectures for Trust-Based Collaborative Intrusion Detection. CoRR Nicholas Kolokotronis, Sotirios Brotsis, Georgios Germanos, Costas Vassilakis, Stavros Shiaeles
2021	J	`jnl`	Threat Landscape for Smart Grid Systems. CoRR Christos-Minas Mathas, Konstantinos-Panagiotis Grammatikakis, Costas Vassilakis, Nicholas Kolokotronis, Vasiliki-Georgia Bilali, Dimitris Kavallieros
2021	Misc	`conf`	Understanding and Mitigating Banking Trojans: From Zeus to Emotet. CSR Konstantinos-Panagiotis Grammatikakis, Ioannis Koufos, Nicholas Kolokotronis, Costas Vassilakis, Stavros Shiaeles
2021	J	`jnl`	Understanding and Mitigating Banking Trojans: From Zeus to Emotet. CoRR Konstantinos-Panagiotis Grammatikakis, Ioannis Koufos, Nicholas Kolokotronis, Costas Vassilakis, Stavros Shiaeles
2020	—	`conf`	"Talking" Triples to Museum Chatbots. HCI (35) Savvas Varitimiadis, Konstantinos Kotis, Dimitris Spiliotopoulos, Costas Vassilakis, Dionisis Margaris
2020	J	`jnl`	A Semantic Mixed Reality Framework for Shared Cultural Experiences Ecosystems. Big Data Cogn. Comput. Costas Vassilakis, Konstantinos Kotis, Dimitris Spiliotopoulos, Dionisis Margaris, Vlasios Kasapakis, Christos-Nikolaos Anagnostopoulos, Georgios M. Santipantakis, George A. Vouros, Theodore Kotsilieris, Volha Petukhova, Andrei Malchanau, Ioanna Lykourentzou, Kaj Michael Helin, Artem Revenko, Nenad Gligoric, Boris Pokric
2020	B	`conf`	A Trust Management System for the IoT domain. SERVICES Christos-Minas Mathas, Costas Vassilakis, Nicholas Kolokotronis
2020	—	`conf`	A User Interface for Personalized Web Service Selection in Business Processes. HCI (45) Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis, Gregory Karagiorgos
2020	J	`jnl`	A fine-grained social network recommender system. Soc. Netw. Anal. Min. Markos Aivazoglou, Antonios O. Roussos, Dionisis Margaris, Costas Vassilakis, Sotiris Ioannidis, Jason Polakis, Dimitris Spiliotopoulos
2020	J	`jnl`	An Adaptive Social Network-Aware Collaborative Filtering Algorithm for Improved Rating Prediction Accuracy. IEEE Access Dionisis Margaris, Anna Kobusinska, Dimitris Spiliotopoulos, Costas Vassilakis
2020	J	`jnl`	An Algorithm for Density Enrichment of Sparse Collaborative Filtering Datasets Using Robust Predictions as Derived Ratings. Algorithms Dionisis Margaris, Dimitris Spiliotopoulos, Gregory Karagiorgos, Costas Vassilakis
2020	J	`jnl`	Data-Assisted Persona Construction Using Social Media Data. Big Data Cogn. Comput. Dimitris Spiliotopoulos, Dionisis Margaris, Costas Vassilakis
2020	B	`conf`	Database Knowledge Enrichment Utilizing Trending Topics from Twitter. ASONAM Costas Vassilakis, Dimitra Maniataki, George Lepouras, Angeliki Antoniou, Dimitris Spiliotopoulos, Vassilis Poulopoulos, Manolis Wallace, Dionisis Margaris
2020	J	`jnl`	Detection of intermittent faults in software programs through identification of suspicious shared variable access patterns. J. Syst. Softw. Panagiotis Sotiropolos, Costas Vassilakis
2020	J	`jnl`	Human behaviour in multimodal interaction: main effects of civic action and interpersonal and problem-solving skills. J. Ambient Intell. Humaniz. Comput. Eleni Makri, Dimitris Spiliotopoulos, Costas Vassilakis, Dionisis Margaris
2020	J	`jnl`	Hydria: An Online Data Lake for Multi-Faceted Analytics in the Cultural Heritage Domain. Big Data Cogn. Comput. Kimon Deligiannis, Paraskevi Raftopoulou, Christos Tryfonopoulos, Nikos Platis, Costas Vassilakis
2020	J	`jnl`	Improving collaborative filtering's rating prediction accuracy by considering users' dynamic rating variability. Int. J. Big Data Intell. Dionisis Margaris, Costas Vassilakis
2020	J	`jnl`	Improving collaborative filtering's rating prediction coverage in sparse datasets by exploiting the 'friend of a friend' concept. Int. J. Big Data Intell. Dionisis Margaris, Costas Vassilakis
2020	—	`conf`	MOOC Accessibility from the Educator Perspective. HCI (44) Dimitris Spiliotopoulos, Vassilis Poulopoulos, Dionisis Margaris, Eleni Makri, Costas Vassilakis
2020	J	`jnl`	Multimodal Interaction: Correlates of Learners' Metacognitive Skill Training Negotiation Experience. Inf. Dimitris Spiliotopoulos, Eleni Makri, Costas Vassilakis, Dionisis Margaris
2020	B	`conf`	Neighbourhood Aging Factors for Limited Information Social Network Collaborative Filtering. ASONAM Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2020	B	`conf`	On Recommending Safe Travel Periods to High Attack Risk Destinations. ASONAM Dimitris Spiliotopoulos, Costas Vassilakis, Dionisis Margaris
2020	—	`conf`	Policy Making Analysis and Practitioner User Experience. HCI (41) Dimitris Koryzis, Fotios Fitsilis, Dimitris Spiliotopoulos, Theocharis Theocharopoulos, Dionisis Margaris, Costas Vassilakis
2020	—	`conf`	Semantics-Driven Conversational Interfaces for Museum Chatbots. HCI (35) Dimitris Spiliotopoulos, Konstantinos Kotis, Costas Vassilakis, Dionisis Margaris
2020	B	`conf`	Threat landscape for smart grid systems. ARES Christos-Minas Mathas, Konstantinos-Panagiotis Grammatikakis, Costas Vassilakis, Nicholas Kolokotronis, Vasiliki-Georgia Bilali, Dimitris Kavallieros
2020	J	`jnl`	What makes a review a reliable rating in recommender systems? Inf. Process. Manag. Dionisis Margaris, Costas Vassilakis, Dimitris Spiliotopoulos
2019	—	`conf`	A Methodology for Generated Text Annotation for High Quality Speech Synthesis. IISA Dimitris Spiliotopoulos, Costas Vassilakis, Dionisis Margaris, Konstantinos Kotis
2019	C	`conf`	A Mixed-reality Interaction-driven Game-based Learning Framework. MEDES Dimitris Spiliotopoulos, Dionisis Margaris, Costas Vassilakis, Volha Petukhova, Konstantinos Kotis
2019	—	`conf`	ATMF: A Student-Centered Framework for the Effective Implementation of Alternative Teaching Methods for CSEd. I3E Workshops Anastasios Theodoropoulos, Costas Vassilakis, Angeliki Antoniou, Manolis Wallace, George Lepouras
2019	J	`jnl`	Bringing a peripheral, traditional venue to the digital era with targeted narratives. Digit. Appl. Archaeol. Cult. Heritage Angeliki Antoniou, Susana Maria Reboreda-Morillo, George Lepouras, Jason Diakoumakos, Costas Vassilakis, Martín López Nores, Catherine Emma Jones
2019	C	`conf`	Citizen Engagement for Transparent and Accountable Policy Modelling. MEDES Dimitris Spiliotopoulos, Dionisis Margaris, Costas Vassilakis
2019	B	`conf`	Data-driven country safety monitoring terrorist attack prediction. ASONAM Dimitris Spiliotopoulos, Costas Vassilakis, Dionisis Margaris
2019	J	`jnl`	Editorial for the Special Issue on "Modern Recommender Systems: Approaches, Challenges and Applications". Inf. Costas Vassilakis, Dionisis Margaris
2019	—	`conf`	Exploring Self-organisation in Crowd Teams. I3E Workshops Ioanna Lykourentzou, Antonios Liapis, Costas Papastathis, Konstantinos Papangelis, Costas Vassilakis
2019	J	`jnl`	Handling uncertainty in social media textual information for improving venue recommendation formulation quality in social networks. Soc. Netw. Anal. Min. Dionisis Margaris, Costas Vassilakis, Dimitris Spiliotopoulos
2019	—	`conf`	Improving Collaborative Filtering's Rating Prediction Accuracy by Introducing the Common Item Rating Past Criterion. IISA Dionisis Margaris, Dionysios Vasilopoulos, Costas Vassilakis, Dimitris Spiliotopoulos
2019	—	`conf`	Improving Collaborative Filtering's Rating Prediction Coverage in Sparse Datasets through the Introduction of Virtual Near Neighbors. IISA Dionisis Margaris, Dionysios Vasilopoulos, Costas Vassilakis, Dimitris Spiliotopoulos
2019	B	`conf`	Improving Collaborative Filtering's Rating Prediction Quality by Exploiting the Item Adoption Eagerness Information. WI Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2019	B	`conf`	On Blockchain Architectures for Trust-Based Collaborative Intrusion Detection. SERVICES Nicholas Kolokotronis, Sotirios Brotsis, Georgios Germanos, Costas Vassilakis, Stavros Shiaeles
2019	—	`conf`	PaloAnalytics Project Concept, Scope and Outcomes: An Opportunity for Culture. CI@SMAP Vassilis Poulopoulos, Manolis Wallace, Costas Vassilakis, George Lepouras
2019	B	`conf`	Social relations versus near neighbours: reliable recommenders in limited information social network collaborative filtering for online advertising. ASONAM Dionisis Margaris, Dimitris Spiliotopoulos, Costas Vassilakis
2019	—	`conf`	TripMentor Project: Scope and Challenges. CI@SMAP Costas Vassilakis, Vassilis Poulopoulos, Manolis Wallace, Angeliki Antoniou, George Lepouras
2018	J	`jnl`	Enhancing Rating Prediction Quality Through Improving the Accuracy of Detection of Shifts in Rating Practices. Trans. Large Scale Data Knowl. Centered Syst. Dionisis Margaris, Costas Vassilakis
2018	B	`conf`	Evaluation of Apache Spot's machine learning capabilities in an SDN/NFV enabled environment. ARES Christos M. Mathas, Olga E. Segou, Georgios Xilouris, Dimitris Christinakis, Michail-Alexandros Kourtis, Costas Vassilakis, Anastasios Kourtis
2018	—	`conf`	ExhiSTORY: IoT in the service of Cultural Heritage. GIIS Vassilis Poulopoulos, Costas Vassilakis, Angela Antoniou, Manolis Wallace, George Lepouras, Martín López Nores
2018	J	`jnl`	Exploiting Rating Abstention Intervals for Addressing Concept Drift in Social Network Recommender Systems. Informatics Dionisis Margaris, Costas Vassilakis
2018	—	`conf`	Improving Collaborative Filtering's Rating Prediction Accuracy by Considering Users' Rating Variability. DASC/PiCom/DataCom/CyberSciTech Dionisis Margaris, Costas Vassilakis
2018	—	`conf`	Improving Collaborative Filtering's Rating Prediction Coverage in Sparse Datasets by Exploiting User Dissimilarity. DASC/PiCom/DataCom/CyberSciTech Dionisis Margaris, Costas Vassilakis
2018	—	`conf`	Personality Analysis of Social Media Influencers as a Tool for Cultural Institutions. EuroMed (1) Vassilis Poulopoulos, Costas Vassilakis, Angela Antoniou, George Lepouras, Manolis Wallace
2018	J	`jnl`	Query personalization using social network information and collaborative filtering techniques. Future Gener. Comput. Syst. Dionisis Margaris, Costas Vassilakis, Panagiotis Georgiadis
2018	—	`conf`	The Effect of Social Media Trending Topics Related to Cultural Venues' Content. SMAP Vassilis Poulopoulos, Costas Vassilakis, Manolis Wallace, Angela Antoniou, George Lepouras
2018	—	`conf`	The Human Computer Interaction and Virtual Reality Lab (University of Peloponnese): Overview and Current Challenges. CIRA@EuroMed Angeliki Antoniou, Costas Vassilakis, Anastasios Theodoropoulos, George Lepouras
2018	J	`jnl`	exhiSTORY: Smart exhibits that tell their own stories. Future Gener. Comput. Syst. Costas Vassilakis, Vassilis Poulopoulos, Angeliki Antoniou, Manolis Wallace, George Lepouras, Martín López Nores
2017	J	`jnl`	Enhancing User Rating Database Consistency Through Pruning. Trans. Large Scale Data Knowl. Centered Syst. Dionisis Margaris, Costas Vassilakis
2017	J	`jnl`	Exploiting Internet of Things information to enhance venues' recommendation accuracy. Serv. Oriented Comput. Appl. Dionisis Margaris, Costas Vassilakis
2017	—	`conf`	Formalization and Visualization of the Narrative for Museum Guides. International KEYSTONE Conference Ioannis Bourlakos, Manolis Wallace, Angeliki Antoniou, Costas Vassilakis, George Lepouras, Anna Vassiliki Karapanagiotou
2017	—	`conf`	Improving Collaborative Filtering's Rating Prediction Quality by Considering Shifts in Rating Practices. CBI (1) Dionisis Margaris, Costas Vassilakis
2017	C	`conf`	Improving collaborative filtering's rating prediction quality in dense datasets, by pruning old ratings. ISCC Dionisis Margaris, Costas Vassilakis
2017	—	`conf`	Modeling Server Workloads for Campus Email Traffic Using Recurrent Neural Networks. ICONIP (5) Spyros Boukoros, Anupiya Nugaliyadde, Angelos K. Marnerides, Costas Vassilakis, Polychronis Koutsakis, Kok Wai Wong
2017	—	`conf`	Personalized augmented reality experiences in museums using Google Cardboards. SMAP Marinos Theodorakopoulos, Nikos Papageorgopoulos, Andriana Mourti, Angeliki Antoniou, Manolis Wallace, George Lepouras, Costas Vassilakis, Nikos Platis
2017	J	`jnl`	Stimulation of reflection and discussion in museum visits through the use of social media. Soc. Netw. Anal. Min. Costas Vassilakis, Angeliki Antoniou, George Lepouras, Vassilis Poulopoulos, Manolis Wallace, Stavroula Bampatzia, Ioannis Bourlakos
2017	J	`jnl`	Using Time Clusters for Following Users' Shifts in Rating Practices. Complex Syst. Informatics Model. Q. Dionisis Margaris, Costas Vassilakis
2016	Misc	`conf`	Improving QoS delivered by WS-BPEL scenario adaptation through service execution parallelization. SAC Dionisis Margaris, Costas Vassilakis, Panagiotis Georgiadis
2016	—	`conf`	Interconnecting Objects, Visitors, Sites and (Hi)Stories Across Cultural and Historical Concepts: The CrossCult Project. EuroMed (1) Costas Vassilakis, Angeliki Antoniou, George Lepouras, Manolis Wallace, Ioanna Lykourentzou, Yannick Naudet
2016	—	`conf`	Pruning and aging for user histories in collaborative filtering. SSCI Dionisis Margaris, Costas Vassilakis
2016	J	`jnl`	Recommendation information diffusion in social networks considering user influence and semantics. Soc. Netw. Anal. Min. Dionisis Margaris, Costas Vassilakis, Panagiotis Georgiadis
2016	—	`conf`	Serious Games: Valuable Tools for Cultural Heritage. GALA Stavroula Bampatzia, Ioannis Bourlakos, Angeliki Antoniou, Costas Vassilakis, George Lepouras, Manolis Wallace
2016	—	`conf`	The Use of Semantics in the CrossCult H2020 Project. International KEYSTONE Conference Stavroula Bampatzia, Omar Gustavo Bravo-Quezada, Angeliki Antoniou, Martín López Nores, Manolis Wallace, George Lepouras, Costas Vassilakis
2016	—	`conf`	Using social media to stimulate history reflection in cultural heritage. SMAP Stavroula Bampatzia, Angeliki Antoniou, George Lepouras, Costas Vassilakis, Manolis Wallace
2015	B	`conf`	A collaborative filtering algorithm with clustering for personalized web service selection in business processes. RCIS Dionisis Margaris, Panagiotis Georgiadis, Costas Vassilakis
2015	Misc	`conf`	A hybrid framework for WS-BPEL scenario execution adaptation, using monitoring and feedback data. SAC Dionisis Margaris, Costas Vassilakis, Panagiotis Georgiadis
2015	J	`jnl`	An integrated framework for adapting WS-BPEL scenario execution using QoS and collaborative filtering techniques. Sci. Comput. Program. Dionisis Margaris, Costas Vassilakis, Panagiotis Georgiadis
2015	J	`jnl`	Effectiveness of Visualization for Information Retrieval through Ontologies with Entity Evolution: The Impact of Ontology Modeling. Int. J. Inf. Retr. Res. Akrivi Katifori, Costas Vassilakis, George Lepouras, Elena Torou
2015	—	`conf`	On Replacement Service Selection in WS-BPEL Scenario Adaptation. SOCA Dionisis Margaris, Panagiotis Georgiadis, Costas Vassilakis
2014	B	`conf`	Mindmap-Inspired Semantic Personal Information Management. EDBT Jenny Rompa, Christos Tryfonopoulos, Costas Vassilakis, George Lepouras
2014	—	`conf`	Towards a learning analytics platform for supporting the educational process. IISA George Lepouras, Akrivi Katifori, Costas Vassilakis, Angeliki Antoniou, Nikos Platis
2014	—	`conf`	Visualization Method Effectiveness in Ontology-Based Information Retrieval Tasks Involving Entity Evolution. SMAP Akrivi Katifori, Costas Vassilakis, George Lepouras, Elena Torou, Constantin Halatsis
2013	B	`conf`	Adapting WS-BPEL scenario execution using collaborative filtering techniques. RCIS Dionisis Margaris, Panagiotis Georgiadis, Costas Vassilakis
2013	Misc	`conf`	An integrated framework for QoS-based adaptation and exception resolution in WS-BPEL scenarios. SAC Dionisis Margaris, Costas Vassilakis, Panagiotis Georgiadis
2013	B	`conf`	Improving museum visitors' Quality of Experience through intelligent recommendations: A visiting style-based approach. Intelligent Environments (Workshops) Ioanna Lykourentzou, Xavier Claude, Yannick Naudet, Eric Tobias, Angeliki Antoniou, George Lepouras, Costas Vassilakis
2013	J	`jnl`	Modelling and performance study of finite-buffered blocking multistage interconnection networks supporting natively 2-class priority routing traffic. J. Netw. Comput. Appl. Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2013	J	`jnl`	OntoFM: A Personal Ontology-based File Manager for the Desktop. CoRR Jenny Rompa, Giorgos Lepouras, Costas Vassilakis, Christos Tryfonopoulos
2013	—	`conf`	User Profiling: Towards a Facebook Game that Reveals Cognitive Style. GALA Angeliki Antoniou, Ioanna Lykourentzou, Jenny Rompa, Eric Tobias, George Lepouras, Costas Vassilakis, Yannick Naudet
2012	J	`jnl`	A context management architecture for m-commerce applications. Central Eur. J. Comput. Sci. Poulcheria Benou, Costas Vassilakis
2012	J	`jnl`	A distributed recommender system architecture. Int. J. Web Eng. Technol. Panagiotis Giannikopoulos, Costas Vassilakis
2012	J	`jnl`	Class-Based Weighted Fair Queuing Scheduling on Dual-Priority Delta Networks. J. Comput. Networks Commun. Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2012	J	`jnl`	Class-based weighted fair queuing scheduling on quad-priority Delta Networks. Int. J. Parallel Emergent Distributed Syst. Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2012	J	`jnl`	Context management for m-commerce applications: determinants, methodology and the role of marketing. Inf. Technol. Manag. Poulcheria Benou, Costas Vassilakis, Adam P. Vrechopoulos
2012	J	`jnl`	Wikis in enterprise settings: a survey. Enterp. Inf. Syst. Ioanna Lykourentzou, Foteini Dagka, Katerina Papadaki, Giorgos Lepouras, Costas Vassilakis
2011	C	`conf`	A Software Architecture for Provision of Context-Aware Web-based m-Commerce Applications. CIT Poulcheria Benou, Costas Vassilakis
2011	J	`jnl`	Modelling and performance evaluation of a novel internal-priority routing scheme for finite-buffered multistage interconnection networks. Int. J. Parallel Emergent Distributed Syst. Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis, Euripidis Glavas
2011	J	`jnl`	Performance Analysis of Dual-Priority Multilayer Multistage Interconnection Networks under Multicast Environment. J. Networks Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2011	J	`jnl`	Performance Analysis of Multilayered Multipriority Asymmetric-Sized Delta Networks. J. Comput. Networks Commun. Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2011	—	`conf`	Supporting User Roles in Ontology Fuzzification. SMAP Manolis Wallace, Panos Alexopoulos, Ioannis Papafragkos, Costas Vassilakis
2011	J	`jnl`	Towards a methodological framework for the cognitive-behavioural evaluation of educational e-games. Int. J. Learn. Technol. Angeliki Antoniou, Dimitris Diakakis, George Lepouras, Costas Vassilakis
2010	J	`jnl`	From the web of data to a world of action. J. Web Semant. Alan J. Dix, Giorgos Lepouras, Akrivi Katifori, Costas Vassilakis, Tiziana Catarci, Antonella Poggi, Yannis E. Ioannidis, Miguel Mora, Ilias Daradimos, Nazihah Md. Akim, Shah Rukh Humayoun, Fabio Terella
2010	J	`jnl`	Historical research in archives: user methodology and supporting tools. Int. J. Digit. Libr. Elena Torou, Akrivi Katifori, Costas Vassilakis, George Lepouras, Constantin Halatsis
2010	J	`jnl`	Ontologies and the brain: Using spreading activation through ontologies to support personal interaction. Cogn. Syst. Res. Akrivi Katifori, Costas Vassilakis, Alan J. Dix
2010	J	`jnl`	Performance Study of Multilayered Multistage Interconnection Networks under Hotspot Traffic Conditions. J. Comput. Networks Commun. Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2010	J	`jnl`	Spreading Activation over Ontology-Based Resources: from Personal Context to Web Scale Reasoning. Int. J. Semantic Comput. Alan J. Dix, Akrivi Katifori, Giorgos Lepouras, Costas Vassilakis, Nadeem Shabir
2010	J	`jnl`	The conceptual model of context for mobile commerce applications. Electron. Commer. Res. Poulcheria Benou, Costas Vassilakis
2009	—	`conf`	A Framework For Adaptation In secure Web Services. MCIS Costas Vassilakis, Christos Kareliotis
2009	J	`jnl`	A heuristics-based approach to reverse engineering of electronic services. Inf. Softw. Technol. Costas Vassilakis, Giorgos Lepouras, Akrivi Katifori
2009	J	`jnl`	IQoS-aware exception resolution for BPEL processes: a middleware-based framework and performance evaluation. Int. J. Web Grid Serv. Christos Kareliotis, Costas Vassilakis, Efstathios Rouvas, Panagiotis Georgiadis
2009	—	`conf`	Performance Evaluation of Multicast Routing over Multilayer Multistage Interconnection Networks. AICT Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis, Euripidis Glavas
2009	A	`conf`	QoS-Driven Adaptation of BPEL Scenario Execution. ICWS Christos Kareliotis, Costas Vassilakis, Stathis Rouvas, Panagiotis Georgiadis
2008	—	`conf`	A game-engine based virtual museum authoring and presentation system. DIMEA Victor A. Mateevitsi, Michael Sfakianos, George Lepouras, Costas Vassilakis
2008	C	`conf`	An Interview-Based User Study on the use of Visualizations for Folder Browsing. IV Maria Golemati, Akrivi Katifori, Eugenia G. Giannopoulou, Ilias Daradimos, Costas Vassilakis, George Lepouras, Constantin Halatsis
2008	C	`conf`	Exception resolution for BPEL processes: a middleware-based framework and performance evaluation. iiWAS Christos Kareliotis, Costas Vassilakis, Stathis Rouvas, Panagiotis Georgiadis
2008	—	`conf`	Improving Performance of Finite-Buffered Blocking Delta Networks with 2-Class Priority Routing through Asymmetric-Sized Buffer Queues. AICT Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2008	—	`conf`	Routing and Performance Analysis of Double-Buffered Omega Networks Supporting Multi-class Priority Traffic. ICSNC Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis, Euripidis Glavas
2008	B	`conf`	Selected results of a comparative study of four ontology visualization methods for information retrieval tasks. RCIS Akrivi Katifori, Elena Torou, Costas Vassilakis, Giorgos Lepouras, Constantin Halatsis
2008	C	`conf`	Supporting Research in Historical Archives: Historical Information Visualization and Modeling Requirements. IV Akrivi Katifori, Elena Torou, Costas Vassilakis, Constantin Halatsis
2008	—	`conf`	Using Spreading Activation through Ontologies to Support Personal Information Management. CSKGOI Akrivi Katifori, Costas Vassilakis, Alan J. Dix
2008	B	`conf`	WhereRU: GPS position reporting and a personal ontology as a virtual community utility. RCIS Ilias Daradimos, Akrivi Katifori, Costas Vassilakis
2007	J	`jnl`	A knowledge-based approach for developing multi-channel e-government services. Electron. Commer. Res. Appl. Costas Vassilakis, Giorgos Lepouras, Constantin Halatsis
2007	B	`conf`	Creating an Ontology for the User Profile: Method and Applications. RCIS Akrivi Katifori, Maria Golemati, Costas Vassilakis, George Lepouras, Constantin Halatsis
2007	J	`jnl`	Domain expert user development: the smartgov approach. Commun. ACM George Lepouras, Costas Vassilakis, Constantin Halatsis, Panagiotis Georgiadis
2007	A	`conf`	Enhancing BPEL scenarios with Dynamic Relevance-Based Exception Handling. ICWS Christos Kareliotis, Costas Vassilakis, Panagiotis Georgiadis
2007	C	`conf`	Evaluating the Significance of the Windows Explorer Visualization in Personal Information Management Browsing tasks. IV Maria Golemati, Akrivi Katifori, Eugenia G. Giannopoulou, Ilias Daradimos, Costas Vassilakis
2007	B	`conf`	Historical Archive Ontologies Requirements, Modeling and Visualization. RCIS Akrivi Katifori, Costas Vassilakis, Elena Torou, George Lepouras, Constantin Halatsis, Ilias Daradimos
2007	J	`jnl`	Ontology visualization methods - a survey. ACM Comput. Surv. Akrivi Katifori, Constantin Halatsis, George Lepouras, Costas Vassilakis, Eugenia G. Giannopoulou
2007	—	`conf`	Performance Analysis of dual priority single-buffered blocking Multistage Interconnection Networks. ICNS Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis
2007	B	`conf`	Performance Evaluation of Two-Priority Network Schema for Single-Buffered Delta Networks. PIMRC Dimitris C. Vasiliadis, George E. Rizos, Costas Vassilakis, Euripidis Glavas
2007	J	`jnl`	Virtual reality in the e-Society. Virtual Real. George D. Magoulas, Giorgos Lepouras, Costas Vassilakis
2006	C	`conf`	A Comparative Study of Four Ontology Visualization Techniques in Protege: Experiment Setup and Preliminary Results. IV Akrivi Katifori, Elena Torou, Constantin Halatsis, Giorgos Lepouras, Costas Vassilakis
2006	C	`conf`	A Context-Based Adaptive Visualization Environment. IV Maria Golemati, Constantin Halatsis, Costas Vassilakis, Akrivi Katifori, Giorgos Lepouras
2006	J	`jnl`	Component reuse in electronic services development. J. Comput. Methods Sci. Eng. Costas Vassilakis, George Lepouras
2006	—	`conf`	Creating an Historical Archive Ontology: Guidelines and Evaluation. ICDIM Elena Torou, Akrivi Katifori, Costas Vassilakis, George Lepouras, Constantin Halatsis
2006	—	`conf`	Reverse engineering electronic services from e-forms to knowledge. ICSOFT (1) Costas Vassilakis, George Lepouras, Akrivi Katifori
2006	B	`conf`	Visualizing a temporally-enhanced ontology. AVI Akrivi Katifori, Costas Vassilakis, George Lepouras, Ilias Daradimos, Constantin Halatsis
2005	J	`jnl`	A flexible framework for managing temporal clinical trial data. Int. J. Electron. Heal. Michael Souillard, Carine Souveyet, Costas Vassilakis, Anya Sotiropoulou
2005	J	`jnl`	An XML model for electronic services. Electron. Gov. an Int. J. Costas Vassilakis, George Lepouras, Constantin Halatsis, Tomás Pariente Lobo
2005	J	`jnl`	Exploiting form semantics and validation checks to improve e-form layout. Int. J. Web Eng. Technol. Costas Vassilakis, George Lepouras, Stathis Rouvas, Panagiotis Georgiadis
2004	—	`conf`	Content Enrichment Through Dynamic Annotation. ICEIS (5) George R. S. Weir, George Lepouras, Costas Vassilakis
2004	J	`jnl`	Integrating e-government public transactional services into public authority workflows. Electron. Gov. an Int. J. Costas Vassilakis, George Lepouras, Stathis Rouvas, Panagiotis Georgiadis
2004	J	`jnl`	Real exhibitions in a virtual museum. Virtual Real. George Lepouras, Akrivi Katifori, Costas Vassilakis, Dimitrios Charitos
2004	J	`jnl`	Virtual museums for all: employing game technology for edutainment. Virtual Real. George Lepouras, Costas Vassilakis
2003	J	`jnl`	A framework for managing the lifecycle of transactional e-government services. Telematics Informatics Costas Vassilakis, Giorgos Laskaridis, Giorgos Lepouras, Stathis Rouvas, Panagiotis Georgiadis
2003	—	`conf`	Facilitating VR Museums Web Presence. HCI (4) George Lepouras, Akrivi Katifori, Costas Vassilakis, Anna Harissi
2003	—	`conf`	Improving e-Form Layout Through Analysis of Form Semantics and Validation Checks. CAiSE Short Paper Proceedings Costas Vassilakis, George Lepouras, Stathis Rouvas, Panagiotis Georgiadis
2002	—	`conf`	An Object-Oriented Approach for Designing Administrative E-forms and Transactional E-services. OOIS Dimitris Gouscos, Stathis Rouvas, Costas Vassilakis, Panagiotis Georgiadis
2002	C	`conf`	Controlled Caching of Dynamic WWW Pages. DEXA Costas Vassilakis, Giorgos Lepouras
2002	A	`conf`	Serving Enhanced Hypermedia Information. ECIR George Lepouras, Costas Vassilakis, George R. S. Weir
2002	—	`conf`	SmartGov: A Knowledge-Based Platform for Transactional Electronic Services. EGOV Panagiotis Georgiadis, Giorgos Lepouras, Costas Vassilakis, G. Boukis, Efthimios Tambouris, Stelios Gorilas, Elisabeth Davenport, Ann Macintosh, John Fraser, Dave Lochhead
2002	—	`conf`	Transactional e-Government Services: An Integrated Approach. EGOV Costas Vassilakis, Giorgos Laskaridis, Giorgos Lepouras, Stathis Rouvas, Panagiotis Georgiadis
2001	—	`conf`	Designing a virtual museum within a museum. Virtual Reality, Archeology, and Cultural Heritage Dimitrios Charitos, George Lepouras, Costas Vassilakis, Vivi Katifori, A. Charissi, L. Halatsi
2000	J	`jnl`	An Optimisation Scheme for Coalesce/Valid Time Selection Operator Sequences. SIGMOD Rec. Costas Vassilakis
2000	J	`jnl`	Function Oriented History Representation in Databases. Comput. Artif. Intell. László Kovács, Costas Vassilakis
1999	—	`conf`	Distributed Information Systems Tailorability: A Component Approach. FTDCS Dimitrios Theotokis, Georgios-Dimitrios Kapos, Costas Vassilakis, Anya Sotiropoulou, Georgios Gyftodimos
1998	J	`jnl`	Implementation of Transaction and Concurrency Control Support in a Temporal DBMS. Inf. Syst. Costas Vassilakis, Nikos A. Lorentzos, Panagiotis Georgiadis
1998	C	`conf`	Implementing Embedded Valid Time Query Languages. DEXA Costas Vassilakis, Panagiotis Georgiadis, Timos K. Sellis
1998	—	`conf`	TOOBIS: Application de la gestion de données temporelles dans le domaine de la recherche clinique. INFORSID Michael Souillard, Costas Vassilakis, Anya Sotiropoulou
1998	—	`conf`	Temporal Extension to ODMG. IADT Anya Sotiropoulou, Michael Souillard, Costas Vassilakis
1996	—	`conf`	A Comparative Study of Temporal DBMS Architectures. DEXA Workshop Costas Vassilakis, Panagiotis Georgiadis, Anya Sotiropoulou
1996	J	`jnl`	A Cost Model for the Estimation Query Execution Time in a Parallel Environment Supporting Pipeline. Comput. Artif. Intell. Myra Spiliopoulou, Michael Hatzopoulos, Costas Vassilakis
1995	—	`conf`	Transaction Support in a Temporal DBMS Temporal Databases Costas Vassilakis, Nikos A. Lorentzos, Panagiotis Georgiadis
1992	—	`conf`	Using Parallelism and Pipeline for the Optimisation of Join Queries. PARLE Myra Spiliopoulou, Michael Hatzopoulos, Costas Vassilakis