Troumpoukis A., Klampanos I. and Karkaletsis V., DeployAI to Deliver Interoperability of Cloud and HPC Resources for Earth Observation in the Context of the European AI-on-Demand Platform, EGU General Assembly 2024, 14-19 April, online, 2024 [doi]

Mollaki V., Karatzas I., Tsekeris C. and Karkaletsis, V., The role of National Ethics Committees in the changing research environment, Bioethica, National Documentation Centre (EKT), 10, Pages: 2–5, 2024 [doi] [pdf]

Ziouvelou, X., Karkaletsis, V., & Giouvanopoulou, K., Embedding values in AI by design: an integrated framework, Smart Ethics in the Digital World: Proceedings of the ETHICOMP 2024, 21th International Conference on the Ethical and Social Impacts of ICT, Universidad de La Rioja, Pages: 239-244, 2024 [doi] [pdf]

Troumpoukis A., Klampanos I., Pantazi D.-A., Albughdadi M. Baousis V., Barrilero O., Bojor A., Branco P., Bruzzone L., Chietera A., Fournand P., Hall R., Lazzarini M., Luna A., Nousias A., Perentis C., Petrakis G., Punjani D., Röbl D., Stamoulis G., Tsalapati E., Urbanavičiūtė I., Weikmann G., Ziouvelou X., Ziółkowski M., Koubarakis M. and Karkaletsis, V., European AI and EO convergence via a novel community-driven framework for data-intensive innovation, Future Generation Computer Systems, Elsevier BV, 160, Pages: 505–521, 2024 [doi] [pdf]

X. Ziouvelou, K. Giouvanopoulou, V. Karkaletsis, An integrated ethics framework for embedding values in AI, Universidad de La Rioja, Pages: 277-289, 2024 [doi] [pdf]

Ziouvelou X., Karozis S., Blazkova M. and Karkaletsis V., Democratising HPC Training: co-creating an Industrial HPC Nano Online Course, Research Square Platform LLC, 2024 [doi] [pdf]

Karozis S., Ziouvelou X. & Karkaletsis V., Mapping the national HPC ecosystem and training needs: The Greek paradigm, The Journal of Supercomputing, Springer Science and Business Media LLC, 79, Pages: 10691–10705, 2023 [doi]

Rekatsinas, C., Giannakopoulos, G., & Karkaletsis E., Machine Learning driven health monitoring diagnostics focused on composite structures utilizing Smart Layers Spectral Elements, 10th ECCOMAS Thematic Conference on Smart Structures and Materials, Dept. of Mechanical Engineering & Aeronautics University of Patras, 2023 [doi]

Troumpoukis A., Klampanos I., Pantazi D., Tsalapati E., Albughdadi M., Alexe M., Baousis V., Barrilero O., Billière B. Bojor A., Branco P., Bruzzone L., Chietera A., Fournand P., Hall R., Hassan D., Lazzarini M., Luna A., Punjani D., Stamoulis G., Weikmann G., Ziółkowski M., Ziouvelou X., Koubarakis M., Karkaletsis V., Bridging the European Earth-Observation and AI Communities for Data-Intensive Innovation, 2023 IEEE Ninth International Conference on Big Data Computing Service and Applications (BigDataService), IEEE, 2023 [doi] [pdf]

Markaki O., Papapostolou A., Mouzakitis S., Zrazinska I., Sobek U., Wilczek T., Troumpoukis A., Ziouvelou X., Karkaletsis, V., Carrasco A., Garcia M., Roger G., Micheli A., Codagnone J. A., de Prado M., O’Neill S., Encouraging AI Adoption by SMEs: Opportunities and Contributions by the ICT49 Project Cluster, 2023 14th International Conference on Information Intelligence Systems & Applications (IISA), IEEE, 2023 [doi] [pdf]

Pittaras N., Giannakopoulos G., Stamatopoulos P. and Karkaletsis V., Content-Based and Knowledge-Enriched Representations for Classification Across Modalities: A Survey, ACM Comput. Surv., Association for Computing Machinery, 2023 [doi] [pdf]

Giouvanopoulou K., Ziouvelou X., Katsamori D., Petasis G., Karkaletsis V., Values and Intangible Cultural Heritage: Policy Recommendations, Capturing the IntAngible of Cultural Heritage (CaTCH), Online & Maribor, Slovenia, 2023 [doi] [pdf]

Sevastopoulos C., Hussain J., Konstantopoulos S., Karkaletsis V. and Makedon F., Depth-guided Free-space Segmentation for a Mobile Robot, arXiv, 2023 [doi] [pdf]

Giouvanopoulou K., Ziouvelou X., Petasis G. and Karkaletsis V., Exploring Values and Value Transformation: A Multi-Perspective Approach, Open Journal of Social Sciences, Scientific Research Publishing, Inc., 11, Pages: 313–338, 2023 [doi] [pdf]

Dagioglou M., Karkaletsis V., Special theme: Cognitive AI & Cobots, Transparent human-robot collaboration, ERCIM News 132, 2023 [doi] [pdf]

Nasikas D., Ricci E., Giannakopoulos G., Karkaletsis V., Theodorou D. N., Vergadou N., Investigation of Machine Learning-based Coarse-Grained Mapping Schemes for Organic Molecules, Proceedings of the SETN 2022 - 12th Hellenic Conference on Artificial Intelligence, ACM, 2022 [doi] [pdf]

Davvetas A., Klampanos I., Skiadopoulos S. and Karkaletsis V., Evidence Transfer: Learning Improved Representations According to External Heterogeneous Task Outcomes, ACM Transactions on Knowledge Discovery from Data, Association for Computing Machinery (ACM), 16, Pages: 1–22, 2022 [doi] [pdf]

Ricci E., Giannakopoulos G., Karkaletsis V., Theodorou D. N., Vergadou N., Developing Machine-Learned Potentials for Coarse-Grained Molecular Simulations: Challenges and Pitfalls, Proceedings of the SETN 2022 - 12th Hellenic Conference on Artificial Intelligence, ACM, 2022 [doi] [pdf]

Sevastopoulos C., Theofanidis M., Zadeh Z. M., Acharya S., Konstantopoulos St., Karkaletsis V., Makedon F., Indoors Traversability Estimation with Less Labels for Mobile Robots, 2022 Sixth IEEE International Conference on Robotic Computing (IRC), IEEE, 2022 [doi] [pdf]

Ricci E., Nasikas D., Giannakopoulos G., Karkaletsis V., Vergadou N., COARSE GRAINED MOLECULAR SIMULATIONS FACILITATED BY MACHINE LEARNING, 13th Panhellenic Scientific Conference on Chemical Engineering, 2022 [doi] [pdf]

Dagioglou M., Tsitos A., Smarnakis A., Karkaletsis V., Smoothing of human movements recorded by a single RGB-D camera for robot demonstrations, HumanInteract Workshop: Learning by Observing Humans in Interaction with their Environment at the 14th PErvasive Technologies Related to Assistive Environments Conference (PETRA 2021), 30 June, 2021 [doi] [pdf]

Lygerakis F., Dagioglou M., Karkaletsis V., Accelerating Human-Agent Collaborative Reinforcement Learning, 14th PErvasive Technologies Related to Assistive Environments Conference (PETRA 2021), 29 June - 2 July, 2021 [doi] [pdf]

Pagé C., Plieger M., Cerff W., Spinuso A., Filgueira R., Atkinson M., Themeli C., Klampanos I. and Karkaletsis V., Making Cyclone Tracking accessible to end users for Climate Research and Applications, EGU General Assembly 2021, 19-30 April, online, 2021 [doi]

Dagioglou M., Karkaletsis V., The sense of agency during Human-Agent Collaboration, Workshop: Robo-Identity: Artificial identity and multi-embodiment in International Conference on Human-Robot Interaction (HRI 2021), 8 March, 2021 [doi] [pdf]

Koubarakis M., Bilidas D., Prokopaki Kostopoulou N., Troumpoukis A, Konstantopoulos S., Karkaletsis V., et al., Artificial Intelligence and Big Data Technologies for Copernicus Data: the ExtremeEarth Project, Big Data from Space 2021 Conference (BiDS 2021), 18-20 May, online, 2021 [doi] [pdf]

Giannakopoulos G., Kiomourtzis G., Pittaras N. and Karkaletsis V., Scaling and Semantically-Enriching Language-Agnostic Summarization, Trends and Applications of Text Summarization Techniques, IGI Global, Pages: 244–292, 2020 [doi]

Antonopoulos C., Keramidas G., Voros N., Huebner M., Schwiegelshohn F., Goehringer D., Dagioglou M., Stavrinos G., Konstantopoulos S and Karkaletsis V., Toward an ICT-Based Service Oriented Health Care Paradigm, IEEE Consumer Electronics Magazine, 9, Pages: 77-82, 2020 [doi] [pdf]

Pagé C., Plieger M. Cerff W., Spinuso A., Filgueira R., Atkinson M., Themeli S., Klampanos I., Karkaletsis V., Easy Access to Complex Analysis Tools for Climate Researchers and Climate Data End Users, AGU Fall Meeting, 1-17 December, Virtual, 2020 [doi] [pdf]

Klampanos I., Themeli C., Spinuso A., Filgueira R., Atkinson M., Gemünd A. and Karkaletsis V., DARE Platform: a Developer-Friendly and Self-Optimising Workflows-as-a-Service Framework for e-Science on the Cloud, Journal of Open Source Software, The Open Journal, 5, Pages: 2664, 2020 [doi] [pdf]

Pagé C., Cerff W., Plieger M., Spinuso A., Klampanos I., Atkinson M., Karkaletsis V., Integrating e-infrastructures for remote climate data processing, EGU General Assembly 2020, May 4–8, Virtual, 2020 [doi]

Ziouvelou X., Karkaletsis V., Giannakopoulos G., Nousias A. and Konstantopoulos S., Democratising AI: A National Strategy for Greece, NCSR Demokritos White Paper, April, 2020 [doi]

Pittaras N., Giannakopoulos G., Papadakis G. and Karkaletsis V., Text classification with semantically enriched word embeddings, Natural Language Engineering, Cambridge University Press, Pages: 1–35, 2020 [doi] [pdf]

Lygerakis F., Tsitos A. C., Dagioglou M., Makedon F., Karkaletsis V., Evaluation of 3D markerless pose estimation accuracy using openpose and depth information from a single RGB-D camera, 13th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA), Pages: 1-6, 2020 [doi] [pdf]

Athanasios Davvetas, Iraklis A. Klampanos, Spiros Skiadopoulos, Vangelis Karkaletsis, The Effect of Evidence Transfer on Latent Feature Relevance for Clustering, Informatics, MDPI, 6, Pages: 17, 2019 [doi]

Karkaletsis V., Konstantopoulos S., Voros N.S., Annicchiarico R., Dagioglou M. and Antonopoulos C. P. (Editors), RADIO–Robots in Assisted Living: Unobtrusive, Efficient, Reliable and Modular Solutions for Independent Ageing, Springer, Cham, 2019 [doi] [pdf]

Klampanos I., Davvetas A., Koukourikos A. and Karkaletsis V., ANNETT-O: an ontology for describing artificial neural network evaluation, topology and training, International Journal of Metadata, Semantics and Ontologies (IJMSO), Inderscience, 13, Pages: 179–190, 2019 [doi]

Koubarakis M., Bereta K., Bilidas D., Giannousis K., Ioannidis T., Pantazi D.A., Stamoulis G., Dowling J., Haridi S., Vlassov V., Bruzzone L., Paris C., Eltoft T., Kramer T., Charalambidis A., Karkaletsis V., Konstantopoulos S., Kakantousis T., Datcu M., Dumitru C. O., Appel F., Bach H., Migdall S., Hughes N., Arthurs D. and Fleming A., From Copernicus Big Data to Extreme Earth Analytics, Advances in Database Technology: 22nd International Conference on Extending Database Technology (EDBT) 2019, Lisbon, Portugal, March 26-29, Pages: 690–693, 2019 [doi]

Pittaras N., Montanelli S., Giannakopoulos G., Ferrara A. and Karkaletsis V., Crowdsourcing in Single-document Summary Evaluation: The Argo Way, World Scientific, Pages: 245-280, 2019 [doi]

Davvetas A., Klampanos I., Karkaletsis V., Evidence Transfer for Improving Clustering Tasks Using External Categorical Evidence, International Joint Conference on Neural Networks (IJCNN) 2019, Budapest, Hungary, July 14-19, Pages: 1–8, 2019 [doi] [pdf]

Pittaras N., Karkaletsis V., A study of semantic augmentation of word embeddings for extractive summarization, Workshop MultiLing 2019: Summarization Across Languages, Genres and Sources, Varna, Bulgaria, September 6, Pages: 63–72, 2019 [doi] [pdf]

Magnoni F., Casarotti E., Harris P. A., Lindner M., Rietbrock A., Klampanos I., Davvetas A., Spinuso A., Filgueira R., Krause A., Gemund A., Atkinson M. and Karkaletsis V., DARE to Perform Seismological Workflows, AGU Fall Meeting 2019, San Fransisco, USA, December 9-13, Pages: IN13C–0726, 2019 [doi]

Klampanos I., Davvetas A., Gemund A., Atkinson M, Koukourikos A., Filgueira R., Krause A., Spinuso A., Charalambidis A., Magnoni F., Casarotti E., Page C., Lindner M., Ikonomopoulos A. and Karkaletsis V., DARE: A Reflective Platform Designed to Enable Agile Data-Driven Research on the Cloud, 15th International Conference on eScience (eScience) 2019, San Diego, CA, USA, September 24-27, Pages: 578–585, 2019 [doi] [pdf]

Karkaletsis V., Konstantopoulos S. and Voros N. S., Introduction to the RADIO Project, RADIO–Robots in Assisted Living: Unobtrusive, Efficient, Reliable and Modular Solutions for Independent Ageing, Springer, Cham, Pages: 1–4, 2018 [doi] [pdf]

Giannakopoulos T., Konstantopoulos S., Siantikos G. and Karkaletsis V., A System of Recognition Services for Clinical Assessment, RADIO–Robots in Assisted Living: Unobtrusive, Efficient, Reliable and Modular Solutions for Independent Ageing, Springer, Cham, Pages: 7–18, 2018 [doi] [pdf]

Iraklis A. Klampanos, Malcolm Atkinson, Christian Page, Antonis Koukourikos, Federica Magnoni, Andreas Rietbrock, Vangelis Karkaletsis, DARE to Deliver Research Agility on Cloud E-Infrastructures, AGU Fall Meeting Abstracts, Washington, USA, December 10-14, 2018 [doi]

Page C., Cerff W.S., Spinuso A., Plieger M., Klampanos I., Atkinson M. and Karkaletsis V., Leveraging and Easing End Users' Climate Data Access by Interfacing Infrastructures, AGU Fall Meeting Abstracts, Washington, USA, December 10-14, 2018 [doi] [pdf]

Iraklis A. Klampanos, Athanasios Davvetas, Spyros Andronopoulos, Charalambos Pappas, Andreas Ikonomopoulos, Vangelis Karkaletsis, Autoencoder-driven weather clustering for source estimation during nuclear events, Environmental Modelling and Software, Elsevier, 102, Pages: 84–93, 2018 [doi]

Klampanos I.A., Davvetas A., Koukourikos A. and Karkaletsis V., ANNETT-O: An Ontology for Describing Artificial Neural Network Evaluation, Topology and Training, CoRR, abs/1804.02528, 2018 [doi]

Tsiakas K., Karkaletsis V. and Makedon F., A Taxonomy in Robot-Assisted Training: Current Trends, Needs and Challenges, 11th PErvasive Technologies Related to Assistive Environments Conference (PETRA) 2018, Corfu, Greece, June 26-29, Pages: 208–213, 2018 [doi] [pdf]

Antonopoulos C., Keramidas G., Voros N.S., Hubner M., Schwiegelshohn F., Goehringer D., Dagioglou M., Stavrinos G., Konstantopoulos S. and Karkaletsis V., Robots in Assisted Living Environments as an Unobtrusive, Efficient, Reliable and Modular Solution for Independent Ageing: The RADIO Experience, 14th International Symposium on Applied Reconfigurable Computing: Architectures, Tools, and Applications (ARC) 2018, Santorini, Greece, May 2-4, Pages: 712–723, 2018 [doi] [pdf]

Giannakopoulos T., Konstantopoulos S., Siantikos G. and Karkaletsis V., Design for a system of multimodal interconnected ADL recognition services, Components and Services for IoT Platforms, Springer, Cham, Pages: 323–333, 2017 [doi] [pdf]

Andronopoulos S., Klampanos I., Davvetas A., Pappas C., Ikonomopoulos A. and Karkaletsis V., Towards Inverse Source Term Estimation using Big Data Technologies, 3rd NERIS Workshop: State of the art and Needs for further research for emergency and recovery preparedness and response, Lisbon, Portugal, May 17-19, Pages: 40-45, 2017 [doi] [pdf]

Iraklis Klampanos, Charalambos Pappas, Spyros Andronopoulos, Athanasios Davvetas, Andreas Ikonomopoulos, Vangelis Karkaletsis, Identifying patterns in the weather of Europe for source term estimation, 19th EGU General Assembly 2017, Vienna, Austria, April 23-28, Pages: 11273, 2017 [doi]

Klampanos I. A., Davvetas A., Andronopoulos S., Pappas C., Ikonomopoulos A., and Karkaletsis V., Autoencoder-Driven Weather Clustering for Source Estimation during Nuclear Events, CoRR, abs/1709.05840, 2017 [doi]

Stasinos Konstantopoulos, Angelos Charalambidis, Antonis Troumpoukis, Giannis Mouchakis, Vangelis Karkaletsis, The Sevod Vocabulary for Dataset Descriptions for Federated Querying, 4th International Workshop on Dataset PROFIling and fEderated Search for Web Data (PROFILES) 2017, co-located with the 16th International Semantic Web Conference (ISWC) 2017, Vienna, Austria, October 23-25, 2017 [doi]

Athanasios Davvetas, Iraklis A. Klampanos, Spyros Andronopoulos, Giannis Mouchakis, Stasinos Konstantopoulos, Andreas Ikonomopoulos, Vangelis Karkaletsis, Big Data Processing and Semantic Web Technologies for Decision Making in Hazardous Substance Dispersion Emergencies, (DEMO - People's Choice Award), Posters & Demonstrations and Industry Tracks co-located with 16th International Semantic Web Conference (ISWC) 2017, Vienna, Austria, October 23-25, 2017 [doi]

Michalis Papakostas, Theodoros Giannakopoulos, Vangelis Karkaletsis, A Fitness Monitoring System based on Fusion of Visual and Sensorial Information, 10th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2017, Rhodes, Greece, June 21-23, Pages: 280–285, 2017 [doi]

Soren Auer, Simon Scerri, Aad Versteden, Erika Pauwels, Angelos Charalambidis, Stasinos Konstantopoulos, Jens Lehmann, Hajira Jabeen, Ivan Ermilov, Gezim Sejdiu, Andreas Ikonomopoulos, Spyros Andronopoulos, Mandy Vlachogiannis, Charalambos Pappas, Athanasios Davvetas, Iraklis A. Klampanos, Efstathios Grigoropoulos, Vangelis Karkaletsis, Victor de Boer, Ronald Siebes, Mohamed Nadjib Mami, Sergio Albani, Michele Lazzarini, Paulo Nunes, Emanuele Angiuli, Nikiforos Pittaras, George Giannakopoulos, Giorgos Argyriou, George Stamoulis, George Papadakis, Manolis Koubarakis, Pythagoras Karampiperis, Axel-Cyrille Ngonga Ngomo, Maria-Esther Vidal, The BigDataEurope Platform - Supporting the Variety Dimension of Big Data, 17th International Conference on Web Engineering (ICWE) 2017, Rome, Italy, June 5-8, Pages: 41–59, 2017 [doi]

Ioannis Manousos Katakis, Georgios Petasis, Vangelis Karkaletsis, CLARIN-EL Web-based Annotation Tool, 10th International Conference on Language Resources and Evaluation (LREC) 2016, Portorovz, Slovenia, May 23-28, Pages: 4505–4512, 2016 [doi]

Antonis Koukourikos, Pythagoras Karampiperis, Vangelis Karkaletsis, Creative stories: Modelling the principal components of human creativity over texts in a storytelling game, Digital Culture & Education, 8, Pages: 119-135, 2016 [doi]

Konstantinos Tsiakas, Maria Dagioglou, Vangelis Karkaletsis, Fillia Makedon, Adaptive Robot Assisted Therapy Using Interactive Reinforcement Learning, 8th International Conference on Social Robotics (ICSR) 2016, Kansas City, USA, November 1-3, Pages: 11–21, 2016 [doi]

Vangelis Karkaletsis, Keynote abstract: Extracting and fusing information from large and heterogeneous datasets, 11th International Workshop on Semantic and Social Media Adaptation and Personalization (SMAP) 2016, Thessaloniki, Greece, October 20-21, Pages: xxi–xxii, 2016 [doi]

Michalis Papakostas, Theodoros Giannakopoulos, Fillia Makedon, Vangelis Karkaletsis, Short-Term Recognition of Human Activities Using Convolutional Neural Networks, 12th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS) 2016, Naples, Italy, November 28 - December 1, Pages: 302–307, 2016 [doi]

Konstantinos Tsiakas, Michalis Papakostas, Benjamin Chebaa, Dylan Ebert, Vangelis Karkaletsis, Fillia Makedon, An Interactive Learning and Adaptation Framework for Adaptive Robot Assisted Therapy, 9th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2016, Corfu Island, Greece, June 29 - July 1, Pages: 40, 2016 [doi]

Stasinos Konstantopoulos, Angelos Charalambidis, Giannis Mouchakis, Antonis Troumpoukis, Jurgen Jakobitsch, Vangelis Karkaletsis, Semantic Web Technologies and Big Data Infrastructures: SPARQL Federated Querying of Heterogeneous Big Data Stores, Posters & Demonstrations Track co-located with 15th International Semantic Web Conference (ISWC) 2016, Kobe, Japan, October 19, 2016 [doi]

Georgios Keramidas, Christos P. Antonopoulos, Nikolaos S. Voros, Fynn Schwiegelshohn, Philipp Wehner, Jens Rettkowski, Diana Gohringer, Michael Hubner, Stasinos Konstantopoulos, Theodoros Giannakopoulos, Vangelis Karkaletsis, Vaggelis Mariatos, Computation and communication challenges to deploy robots in assisted living environments, Design, Automation & Test in Europe Conference & Exhibition (DATE) 2016, Dresden, Germany, March 14-18, Pages: 888–893, 2016 [doi]

George Kiomourtzis, George Giannakopoulos, Vangelis Karkaletsis, Aris Kosmopoulos, A multi-lingually applicable journalist toolset for the big-data era, 25th International Joint Conference on Artificial Intelligence (IJCAI) 2016, Workshop on Natural Language Processing meets Journalism, New York City, United States, July 9-15, Pages: 41–46, 2016 [doi]

Georgios Petasis, Vangelis Karkaletsis, Identifying Argument Components through TextRank, 3rd Workshop on Argument Mining, hosted by the 54th Annual Meeting of the Association for Computational Linguistics, ArgMining@ACL 2016, Berlin, Germany, August 12, Pages: 94–102, 2016 [doi]

Iraklis A. Klampanos, Diamando Vlachogiannis, Spyros Andronopoulos, Antonio Cofino, Angelos Charalambidis, Rob Lokers, Stasinos Konstantopoulos, Vangelis Karkaletsis, Towards supporting climate scientists and impact assessment analysts with the Big Data Europe platform, EGU General Assembly Conference, Vienna, Austria, April 17-22, 2016 [doi]

Katerina Zamani, Angelos Charalambidis, Stasinos Konstantopoulos, Maria Dagioglou, Vangelis Karkaletsis, A Peer-to-Peer Protocol and System Architecture for Privacy-Preserving Statistical Analysis, International Conference on Availability, Reliability, and Security in Information Systems (IFIP) 2016 and Workshop on Privacy Aware Machine Learning for Health Data Science (PAML) 2016, Salzburg, Austria, August 31-September 2, Pages: 236–250, 2016 [doi]

Sergio Albani, Michele Lazzarini, Manolis Koubarakis, Efi Karra Taniskidou, George Papadakis, Vangelis Karkaletsis, Vangelis, George Giannakopoulos, Integrating Remote and Social Sensing Data for a Scenario on Secure Societies in Big Data Platform, Living Planet Symposium, Prague, Czech Republic, May 9-13, Pages: 33, 2016

Alexandros Lioulemes, Paul Sassaman, Shawn N. Gieser, Vangelis Karkaletsis, Fillia Makedon, Vangelis Metsis, Self-managed patient-game interaction using the barrett WAM arm for motion analysis, 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2015, Corfu, Greece, July 1-3, Pages: 34:1–34:8, 2015 [doi]

Anastasia Krithara, George Giannakopoulos, George Paliouras, George Petasis and Vangelis Karkaletsis, Predicting Sentiment using Transfer Learning, 15th International Conference on Artificial Intelligence (IJCAI) 2015, Workshop on Replicability and Reproducibility in Natural Language Processing: adaptive methods, resources and software (AdaptiveNLP) 2015, Buenos Aires, Argentina, July 25-31, 2015 [doi]

Theodosios Goudas, Christos Louizos, Georgios Petasis, Vangelis Karkaletsis, Argument Extraction from News, Blogs, and the Social Web, International Journal on Artificial Intelligence Tools: Architectures, Languages, Algorithms, World Scientific, 24, 2015 [doi]

Angelos Charalambidis, Stasinos Konstantopoulos, Vangelis Karkaletsis, Dataset Descriptions for Optimizing Federated Querying, 24th International Conference on World Wide Web Companion (WWW) 2015, Florence, Italy, May 18-22, Pages: 17–18, 2015 [doi]

Konstantinos Tsiakas, Lynette Watts, Cyril Lutterodt, Theodoros Giannakopoulos, Alexandros Papangelis, Robert Gatchel, Vangelis Karkaletsis, Fillia Makedon, A multimodal adaptive dialogue manager for depressive and anxiety disorder screening: a Wizard-of-Oz experiment, 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2015, Corfu, Greece, July 1-3, Pages: 82:1–82:4, 2015 [doi]

Michalis Papakostas, Konstantinos Tsiakas, Natalie Parde, Vangelis Karkaletsis, Fillia Makedon, An interactive framework for learning user-object associations through human-robot interaction, 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2015, Corfu, Greece, July 1-3, Pages: 13:1–13:8, 2015 [doi]

Alexandros Lioulemes, Nikolaos Sarafianos, Theodoros Giannakopoulos, Vangelis Karkaletsis, A two-step identification method for human-robot interaction in assistive environments, 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2015, Corfu, Greece, July 1-3, Pages: 71:1–71:4, 2015 [doi]

Theodoros Giannakopoulos, Michalis Papakostas, Stavros J. Perantonis, Vangelis Karkaletsis, Visual sentiment analysis for brand monitoring enhancement, 9th International Symposium on Image and Signal Processing and Analysis (ISPA) 2015, Zagreb, Croatia, September 7-9, Pages: 1–6, 2015 [doi]

Natalie Parde, Adam Hair, Michalis Papakostas, Konstantinos Tsiakas, Maria Dagioglou, Vangelis Karkaletsis, Rodney D. Nielsen, Grounding the Meaning of Words through Vision and Interactive Gameplay, 24th International Joint Conference on Artificial Intelligence (IJCAI) 2015, Buenos Aires, Argentina, July 25-31, Pages: 1895–1901, 2015 [doi]

Christos P. Antonopoulos, Georgios Keramidas, Nikolaos S. Voros, Michael Hubner, Diana Gohringer, Maria Dagioglou, Theodoros Giannakopoulos, Stasinos Konstantopoulos, Vangelis Karkaletsis, Robots in Assisted Living Environments as an Unobtrusive, Efficient, Reliable and Modular Solution for Independent Ageing: The RADIO Perspective, 11th International Symposium on Applied Reconfigurable Computing (ARC) 2015, Bochum, Germany, April 13-17, Pages: 519–530, 2015 [doi]

Natalie Paige Parde, Michalis Papakostas, Konstantinos Tsiakas, Maria Dagioglou, Vangelis Karkaletsis, Rodney D. Nielsen, I Spy: An Interactive Game-Based Approach to Multimodal Robot Learning, Knowledge, Skill, and Behavior Transfer in Autonomous Robots, Papers from the 2015 AAAI Workshop, Austin, Texas, USA, January 25, Pages: 35–41, 2015 [doi]

Christos Sardianos, Ioannis Manousos Katakis, Georgios Petasis, Vangelis Karkaletsis, Argument Extraction from News, 2nd Workshop on Argumentation Mining, ArgMining@HLT-NAACL 2015, Denver, Colorado, USA, May 31-June 5, Pages: 56–66, 2015 [doi]

George Kiomourtzis, George Giannakopoulos, Georgios Petasis, Pythagoras Karampiperis, Vangelis Karkaletsis, NOMAD: Linguistic Resources and Tools Aimed at Policy Formulation and Validation, 9th International Conference on Language Resources and Evaluation (LREC) 2014, Reykjavik, Iceland, May 26-31, Pages: 3464–3470, 2014 [doi]

Theodosios Goudas, Christos Louizos, Georgios Petasis, Vangelis Karkaletsis, Argument Extraction from News, Blogs, and Social Media, 8th Hellenic Conference on Artificial Intelligence: Methods and Applications SETN 2014, Ioannina, Greece, May 15-17, Pages: 287–299, 2014 [doi]

Theodoros Giannakopoulos, Ioannis A. Vetsikas, Ioanna Koromila, Vangelis Karkaletsis, Stavros J. Perantonis, AMINESS: a platform for environmentally safe shipping, 7th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2014, Workshop on Assistive Technologies for Safe Operation Of Complex Technological Systems Including Industrial Sites, Shipping, Off-Shore Platforms And Mining Activities, Rhodes, Greece, May 27-30, Pages: 45:1–45:8, 2014 [doi]

Yannis Charalabidis, Euripidis N. Loukis, Aggeliki Androutsopoulou, Vangelis Karkaletsis, Anna Triantafillou, Passive crowdsourcing in government using social media, Transforming Government: People, Process and Policy, Emerald Group Publishing Limited, 8, Pages: 283–308, 2014 [doi]

George Giannakopoulos, George Kiomourtzis, Vangelis Karkaletsis, NewSum:“N-Gram Graph”-Based Summarization in the Real World, Innovative Document Summarization Techniques: Revolutionizing Knowledge Understanding, IGI Global, Pages: 205–230, 2014 [doi]

Pythagoras Karampiperis, Giannis Mouchakis, Georgios Paliouras, Vangelis Karkaletsis, ER designer toolkit: a graphical event definition authoring tool, Universal Access in the Information Society, Springer, 13, Pages: 115–123, 2014 [doi]

Georgios Petasis, Ralf Moller, Vangelis Karkaletsis, BOEMIE: Reasoning-based Information Extraction, 1st Workshop on Natural Language Processing and Automated Reasoning co-located with 12th International Conference on Logic Programming and Nonmonotonic Reasoning (LPNMR) 2013, A Corunna, Spain, September 15, Pages: 60–75, 2013 [doi]

Marios Vodas, Nikos Pelekis, Yannis Theodoridis, Cyril Ray, Vangelis Karkaletsis, Sergios Petridis, Anastasia Miliou, Efficient AIS Data Processing for Environmentally Safe Shipping, SPOUDAI Journal of Economics and Business, University of Piraeus, 63, Pages: 181-190, 2013 [doi]

Nikolaos Mavridis, Stasinos Konstantopoulos, Ioannis A. Vetsikas, I. Heldal, Pythagoras Karampiperis, G. Mathiason, Serge Thill, Kostas Stathis, Vangelis Karkaletsis, CLIC: A Framework for Distributed, On-Demand, Human-Machine Cognitive Systems, CoRR, abs/1312.2242, 2013 [doi]

Antonis Koukourikos, George A. Vouros, Vangelis Karkaletsis, SYNTHESIS: results for the Ontology Alignment Evaluation Initiative (OAEI) 2013, 8th International Workshop on Ontology Matching co-located with the 12th International Semantic Web Conference (ISWC) 2013, Sydney, Australia, October 21, Pages: 190–196, 2013 [doi]

Antonis Koukourikos, Vangelis Karkaletsis, George A. Vouros, Exploiting unstructured web information for managing linked data spaces, 17th Panhellenic Conference on Informatics (PCI) 2013, Thessaloniki, Greece, September 19-21, Pages: 294–299, 2013 [doi]

Stasinos Konstantopoulos, Vangelis Karkaletsis, System Personality and Adaptivity in Affective Human-Computer Interaction, International Journal on Artificial Intelligence Tools: Architectures, Languages, Algorithms, World Scientific, 22, 2013 [doi]

Alexandros Papangelis, Vangelis Karkaletsis, Heng Huang, Towards adaptive dialogue systems for assistive living environments, 18th International Conference on Intelligent User Interfaces (IUI) 2013, Santa Monica, CA, USA, March 19-22, Pages: 29–32, 2013 [doi]

George Giannakopoulos, Vangelis Karkaletsis, Summary Evaluation: Together We Stand NPowER-ed, 14th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing) 2013, Samos, Greece, March 24-30, Pages: 436–450, 2013 [doi]

Vangelis Karkaletsis, Stasinos Konstantopoulos, Embodiment and audio-visual perception in tele-health environments, 6th International Conference on Pervasive Technologies Related to Assistive Environments (PETRA) 2013, Rhodes, Greece, May 29-31, 2013

Nikos Katzouris, Alexander Artikis, Fillia Makedon, Vangelis Karkaletsis, George Paliouras, Event recognition for assisted independent living, 6th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2013, Rhodes, Greece, May 29-31, Pages: 26:1–26:5, 2013 [doi]

Yannis Charalabidis, Vangelis Karkaletsis, Anna Triantafillou, Aggeliki Androutsopoulou, Euripidis N. Loukis, Requirements and Architecture of a Passive Crowdsourcing Environment, Electronic Government and Electronic Participation: Joint Proceedings of Ongoing Research of IFIP EGOV and IFIP ePart 2013, Koblenz, Germany, September 16-19, Pages: 208–217, 2013 [doi]

Stasinos Konstantopoulos, Valia Kordoni, Nicola Cancedda, Vangelis Karkaletsis, Dietrich Klakow, Jean-Michel Renders, Task-Driven Linguistic Analysis based on an Underspecified Features Representation, 8th International Conference on Language Resources and Evaluation (LREC) 2012, Istanbul, Turkey, May 23-25, Pages: 1966–1970, 2012 [doi]

Elias Iosif, Georgios Petasis, Vangelis Karkaletsis, Ontology-Based Information Extraction under a Bootstrapping Approach, Semi-Automatic Ontology Development: Processes and Resources, IGI Global, Pages: 1–21, 2012 [doi]

Stasinos Konstantopoulos, Phil Archer, Pythagoras Karampiperis, Vangelis Karkaletsis, The POWDER protocol as infrastructure to serving and compressing semantic data, International Journal on Metadata, Semantics, and Ontologies, Inderscience, 7, Pages: 1–15, 2012 [doi]

Alexandros Papangelis, Nikolaos Kouroupas, Vangelis Karkaletsis, Fillia Makedon, An Adaptive Dialogue System with Online Dialogue Policy Learning, 7th Hellenic Conference on Artificial Intelligence: Theories and Applications (SETN) 2012, Lamia, Greece, May 28-31, Pages: 323–330, 2012 [doi]

George Giannakopoulos, Vangelis Karkaletsis, George A. Vouros, Detecting Human Features in Summaries - Symbol Sequence Statistical Regularity, 7th Hellenic Conference on Artificial Intelligence: Theories and Applications (SETN) 2012, Lamia, Greece, May 28-31, Pages: 114–123, 2012 [doi]

Alexandros Papangelis, Giannis Mouchakis, Angela Boisselle Texas, Dimitrios I. Kosmopoulos, Vangelis Karkaletsis, Fillia Makedon, A game system for remote rehabilitation of cerebral palsy patients, 5th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2012, Heraklion, Crete, Greece, June 6-9, Pages: 19, 2012 [doi]

Alexandros Papangelis, Vangelis Karkaletsis, Fillia Makedon, Evaluation of Online Dialogue Policy Learning Techniques, 8th International Conference on Language Resources and Evaluation (LREC) 2012, Istanbul, Turkey, May 23-25, Pages: 1410–1415, 2012 [doi]

Vassiliki Rentoumi, George A. Vouros, Vangelis Karkaletsis, Amalia Moser, Investigating Metaphorical Language in Sentiment Analysis: A Sense-to-Sentiment Perspective, Transactions on Speech and Language Processing, ACM, 9, Pages: 6:1–6:31, 2012 [doi]

Antonis Koukourikos, Vangelis Karkaletsis, George A. Vouros, Towards Enriching Linked Open Data via Open Information Extraction, 1st International Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data, Heraklion, Greece, May 27, Pages: 37–42, 2012 [doi]

Antonis Koukourikos and Pythagoras Karampiperis and George A. Vouros and Vangelis Karkaletsis, Using Open Information Extraction and Linked Open Data towards Ontology Enrichment and Alignment, International Conference on Advanced Information Systems Engineering (CAiSE) 2012, 5th International Workshop on Ontology, Models Conceptualization and Epistemology in Social, Artificial and Natural Systems (ONTOSE) 2012, Gdansk, Poland, June 25-26, Pages: 117–122, 2012 [doi]

Georgios Petasis, Anastasia Krithara, Vangelis Karkaletsis, Bootstraping ontology evolution: A generic approach relying on ontology-based information extraction, 8th International Conference of Language Resources and Evaluation (LREC) 2012, Istanbul, Turkey, May 23-25, 2012 [doi]

Vangelis Karkaletsis, Pythagoras Karampiperis, Stasinos Konstantopoulos, Social networks as a resource for policy formulation, Intersocial Workshop on Online Social Networks: Challenges and Perspectives (IWOSN) 2012, Patras, Greece, June 15, 2012 [doi]

Marios Vodas, Nikos Pelekis, Yannis Theodoridis, Cyril Ray, Vangelis Karkaletsis, Sergios Petridis, Anastasia Miliou, Big AIS Data Processing for Environmentally Safe Shipping, Workshop on Progress in Movement Analysis: Experiences with Real Data, Zurich, Switzerland, November 15-16, 2012

Alexander Artikis, Panagiotis D. Bamidis, Antonis Billis, Charalampos Bratsas, Christos Frantzidis, Vangelis Karkaletsis, Manousos Klados, Evdokimos Konstantinidis, Stasinos Konstantopoulos, Dimitris Kosmopoulos, Homer Papadopoulos, Stavros Perantonis, Sergios Petridis, Constantine D. Spyropoulos, Supporting tele-health and AI-based clinical decision making with sensor data fusion and semantic interpretation: The USEFIL case study, 1st International Workshop on Artificial Intelligence and NetMedicine in conjuction with ECAI 2012, Montpellier, France, August 27, Pages: 21, 2012 [doi]

Yannis Charalabidis, Anna Triantafillou, Vangelis Karkaletsis, Euripidis N. Loukis, Public Policy Formulation through Non Moderated Crowdsourcing in Social Media, 4th International Conference on Electronic Participation (ePart) 2012, Kristiansand, Norway, September 3-5, Pages: 156–169, 2012 [doi]

George Giannakopoulos, Vangelis Karkaletsis, AutoSummENG and MeMoG in Evaluating Guided Summaries, 4th Text Analysis Conference (TAC) 2011, Gaithersburg, Maryland, USA, November 14-15, 2011 [doi]

Stasinos Konstantopoulos, Vangelis Karkaletsis, Dimitrios Vogiatzis, Dimitris Bilidas, Authoring Semantic and Linguistic Knowledge for the Dynamic Generation of Personalized Descriptions, Language Technology for Cultural Heritage, Selected Papers from the LaTeCH Workshop Series, Theory and Applications of Natural Language Processing, Springer Berlin, Heidelberg, Pages: 115–132, 2011 [doi]

Dimitrios Vogiatzis, Vangelis Karkaletsis, A cognitive framework for robot guides in art collections, Universal Access in the Information Society, Springer, 10, Pages: 179–193, 2011 [doi]

Miguel Angel Mayer, Pythagoras Karampiperis, Antonis Kukurikos, Vangelis Karkaletsis, Kostas Stamatakis, Dagmar Villarroel Gonzales, Angela Leis, Applying Semantic Web technologies to improve the retrieval, credibility and use of health-related web resources, Health Informatics Journal, Sage, 17, Pages: 95–115, 2011 [doi]

Karkaletsis V., Mayer M., Karampiperis P., Special issue on semantic descriptions of medical web resources: Technologies to support their creation, maintenance and access, Health Informatics Journal, Sage, 17, Pages: 91–94, 2011 [doi] [pdf]

Pythagoras Karampiperis, Stasinos Konstantopoulos, Vangelis Karkaletsis, POWDER as Enabling Technology for the Semantic Interoperability of Agricultural Repositories, 5th International Conference on Metadata and Semantic Research (MTSR) 2011, Izmir, Turkey, October 12-14, Pages: 514–519, 2011 [doi]

Vangelis Karkaletsis, Pavlina Fragkou, Georgios Petasis, Elias Iosif, Ontology Based Information Extraction from Text, Knowledge-Driven Multimedia Information Extraction and Ontology Evolution - Bridging the Semantic Gap, Lecture Notes in Computer Science, volume 6050, Springer Berlin, Heidelberg, Pages: 89–109, 2011 [doi]

Pythagoras Karampiperis, Giannis Mouchakis, Georgios Paliouras, Vangelis Karkaletsis, ER designer toolkit: a graphical event definition authoring tool, 4th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) 2011, Crete, Greece, May 25-27, Pages: 34, 2011 [doi]

Georgios Petasis, Vangelis Karkaletsis, Georgios Paliouras, Anastasia Krithara, Elias Zavitsanos, Ontology Population and Enrichment: State of the Art, Knowledge-Driven Multimedia Information Extraction and Ontology Evolution - Bridging the Semantic Gap, Lecture Notes in Computer Science, volume 6050, Springer Berlin, Heidelberg, Pages: 134–166, 2011 [doi]

George Giannakopoulos, George Vouros, Vangelis Karkaletsis, Multi-document summaries using n-gram graphs: salience and redundancy, Natural Language Engineering, Cambridge University Press, 1, Pages: 1–31, 2010 [doi]

Konstantopoulos S., Perantonis S. J., Karkaletsis V., Spyropoulos C. D. , Vouros G. A.(Editors), Artificial Intelligence: Theories, Models and Applications: 6th Hellenic Conference on AI, SETN 2010,Greece, May 4-7, 2010, Proceedings, Springer, Berlin, Heidelberg, 6040, 2010 [doi] [pdf]

Vassiliki Rentoumi, Stefanos Petrakis, Manfred Klenner, George A. Vouros, Vangelis Karkaletsis, United we Stand: Improving Sentiment Analysis by Joining Machine Learning and Rule Based Methods, International Conference on Language Resources and Evaluation (LREC) 2010, Valletta, Malta, May 17-23, 2010 [doi]

Vangelis Karkaletsis, Stasinos Konstantopoulos, Dimitris Bilidas, Dimitrios Vogiatzis, INDIGO project: personality and dialogue enabled cognitive robots, 3rd International Conference on Pervasive Technologies Related to Assistive Environments (PETRA) 2010, Samos, Greece, June 23-25, 2010 [doi]

Vassiliki Rentoumi, Stefanos Petrakis, Vangelis Karkaletsis, Manfred Klenner, George A. Vouros, A Collaborative System for Sentiment Analysis, 6th Hellenic Conference on AI: Artificial Intelligence: Theories, Models and Applications (SETN) 2010, Athens, Greece, May 4-7, Pages: 411–416, 2010 [doi]

George Giannakopoulos, Vangelis Karkaletsis, Summarization System Evaluation Variations Based on N-Gram Graphs, 3rd Text Analysis Conference (TAC) 2010, Gaithersburg, Maryland, USA, November 15-16, 2010 [doi]

Vassilis Spiliopoulos, George A. Vouros, Vangelis Karkaletsis, On the discovery of subsumption relations for the alignment of ontologies, Journal of Web Semantics: Science, Services and Agents on the World Wide Web, Elsevier, 8, Pages: 69–88, 2010 [doi]

Vangelis Karkaletsis, Konstantinos Stamatakis, Pythagoras Karampiperis, Martin Labský, Management of medical website quality labels via web mining, Web Technologies: Concepts, Methodologies, Tools and Applications, IGI Global, Pages: 1994–2014, 2010 [doi]

Phil Archer, Elena Ferrari, Vangelis Karkaletsis, Stasinos Konstantopoulos, Antonis Koukourikos, Andrea Perego, QUATRO Plus: Quality You Can Trust?, 6th European Semantic Web Conference (ESWC) 2009, Workshop on Trust and Privacy on the Social and Semantic Web (SPOT) 2009, Heraklion, Greece, June 1, 2009 [doi]

Vangelis Karkaletsis, Konstantinos Stamatakis, Pythagoras Karampiperis, Martin Labský, Marek Růžička, Vojtech Svátek, Enrique Amigo Cabrera, Matti Pöllä, Miguel Angel Mayer, Dagmar Villaroel Gonzales, Management of Medical Website Quality Labels via Web Mining, Data Mining and Medical Knowledge Management: Cases and Applications, IGI Global, Pages: 206–226, 2009 [doi]

Stasinos Konstantopoulos, Vangelis Karkaletsis, Dimitris Bilidas, An Intelligent Authoring Environment for Abstract Semantic Representations of Cultural Object Descriptions, Workshop on Language Technology and Resources for Cultural Heritage, Social Sciences, Humanities, and Education (LaTeCH - SHELT&R) at EACL 2009, Athens, Greece, March 30, Pages: 10–17, 2009 [doi]

Vassiliki Rentoumi, George Giannakopoulos, Vangelis Karkaletsis, George A. Vouros, Sentiment Analysis of Figurative Language using a Word Sense Disambiguation Approach, Recent Advances in Natural Language Processing (RANLP) 2009, Borovets, Bulgaria, September 14-16, Pages: 370–375, 2009 [doi]

George Giannakopoulos, Vangelis Karkaletsis, N-gram Graphs: Representing Documents and Document Sets in Summary System Evaluation, 2nd Text Analysis Conference (TAC) 2009, Gaithersburg, Maryland, USA, November 16-17, 2009 [doi]

Silvana Castano, Irma Sofia Espinosa Peraldi, Alfio Ferrara, Vangelis Karkaletsis, Atila Kaya, Ralf Moller, Stefano Montanelli, Georgios Petasis, Michael Wessel, Multimedia Interpretation for Dynamic Ontology Evolution, Journal of Logic and Computation: Special Issue: Recent Advances in Ontology Dynamics, Oxford Academic, 19, Pages: 859–897, 2009 [doi]

Guergana Savova, Vangelis Karkaletsis, Galia Angelova (Editors), Proceedings of the International Workshop Biomedical Information Extraction, International Conference RANLP 2009, Borovets, Bulgaria, September 14-16, Incoma, 2009 [doi]

Georgios Petasis, Vangelis Karkaletsis, Anastasia Krithara, Georgios Paliouras, Constantine D. Spyropoulos, Semi-automated ontology learning: the BOEMIE approach, 6th European Semantic Web Conference (ESWC) 2009, 1st ESWC Workshop on Inductive Reasoning and Machine Learning on the Semantic Web (IRMLeS) 2009, Heraklion, Greece, June 1, 2009 [doi]

Dimitrios Vogiatzis, Constantine D. Spyropoulos, Stasinos Konstantopoulos, Vangelis Karkaletsis, Zerrin Kasap, Colin Matheson, Olivier Deroo, An Affective Robot Guide to Museums, 4th International Workshop on Human-Computer Conversation, Bellagio, Italy, October 6-7, 2008 [doi]

George Giannakopoulos, Vangelis Karkaletsis, George A. Vouros, Panagiotis Stamatopoulos, Summarization system evaluation revisited: N-gram graphs, Transactions on Speech and Language Processing, ACM, 5, Pages: 5:1–5:39, 2008 [doi]

Stergos D. Afantenos, Vangelis Karkaletsis, Panagiotis Stamatopoulos, Constantin Halatsis, Using synchronic and diachronic relations for summarizing multiple documents describing evolving events, Journal of Intelligent Information Systems: Integrating Artificial Intelligence and Database Technologies, Springer, 30, Pages: 183–226, 2008 [doi]

George Giannakopoulos, Vangelis Karkaletsis, George A. Vouros, Testing the Use of N-gram Graphs in Summarization Sub-tasks, 1st Text Analysis Conference (TAC) 2008, Gaithersburg, Maryland, USA, November 17-19, 2008 [doi]

George Giannakopoulos, Vangelis Karkaletsis, George Vouros, Summarization Evaluation Under an N-Gram Graph Perspective. In View of Combined Evaluation Measures, 1st Text Analysis Conference (TAC) 2008, Gaithersburg, Maryland, USA, November 17-19, 2008 [doi]

Pavlina Fragkou, Georgios Petasis, Aris Theodorakos, Vangelis Karkaletsis, Constantine D. Spyropoulos, BOEMIE Ontology-Based Text Annotation Tool, International Conference on Language Resources and Evaluation (LREC) 2008, Marrakech, Morocco, May 26-June 1, Pages: 1273-1279, 2008 [doi]

Vangelis Karkaletsis, Pythagoras Karampiperis, Konstantinos Stamatakis, Martin Labsky, Marek Ruzicka, Vojtech Svatek, Enrique Amigo, Matti Polla, Miquel Angel Mayer, Angela Leis, Dagmar Villarroel Gonzales, Automating Accreditation of Medical Web Content, 18th European Conference on Artificial Intelligence (ECAI) 2008, Patras, Greece, July 21-25, Pages: 688–692, 2008 [doi]

Dimitrios Vogiatzis, Vangelis Karkaletsis, A framework for human-robot interaction, 1st International Conference on Pervasive Technologies Related to Assistive Environments (PETRA) 2008, Athens, Greece, July 16-18, Pages: 10, 2008 [doi]

Stasinos Konstantopoulos, Vangelis Karkaletsis, Colin Matheson, Robot Personality: Representation and Externalization, International Workshop on Computational Aspects of Affective and Emotional Interaction (CAFFEi) 2008, Patras, Greece, July 21, 2008 [doi]

Vassiliki Rentoumi, Vangelis Karkaletsis, George Vouros, Amalia Mozer, Sentiment analysis exploring metaphorical and idiomatic senses: A word sense disambiguation approach, International Workshop on Computational Aspects of Affectual and Emotional Interaction (CAFFEi) 2008, Patras, Greece, July 21, 2008 [doi]

Athanasios Tegos, Vangelis Karkaletsis, Alexandros Potamianos, Learning of semantic relations between ontology concepts using statistical techniques, High-level Information Extraction Workshop, European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD) 2008, Antwerp, Belgium, September 19, 2008 [doi]

Georgios Petasis, Vangelis Karkaletsis, Georgios Paliouras, Constantine D. Spyropoulos, Learning context-free grammars to extract relations from text, 18th European Conference on Artificial Intelligence (ECAI) 2008, Patras, Greece, July 21-25, Pages: 303–307, 2008 [doi]

Dimitrios Vogiatzis, Dimitrios Galanis, Vangelis Karkaletsis, Ion Androutsopoulos, Constantine D. Spyropoulos, A conversant robotic guide to art collections, 2nd Workshop on Language Technology for Cultural Heritage Data, Language Resources and Evaluation Conference, Marrakech, Morocco, May 26-June 1, Pages: 55–60, 2008 [doi]

Georgios Petasis, Pavlina Fragkou, Aris Theodorakos, Vangelis Karkaletsis, Constantine D. Spyropoulos, Segmenting HTML pages using visual and semantic information, International Conference on Language Resources and Evaluation (LREC) 2008, 4th Web as Corpus Workshop (WAC-4) Can we beat Google?, Marrakech, Morocco, May 26-June 1, Pages: 18-25, 2008 [doi]

Stasinos Konstantopoulos, Vangelis Karkaletsis, Colin Matheson, Jan Oberlander (Editors), Proceedings of the International Workshop on Computational Aspects of Affective and Emotional Interaction (CAFFEi 08), Proceedings of the 18th European Conference on Artificial Intelligence (ECAI) 2008, Patras, Greece, July 21-25, 2008

Dagmar Villarroel Gonzales, Miguel Angel Mayer, Angela Leis, Vangelis Karkaletsis, Konstantinos Stamatakis, Vangelis Metsis, Pantelis Nasikas, Martin Labský, Marek Růžička, Vojtech Svátek, F. López-Ostenero, V. Peinado, Enrique Amigo Cabrera, T. Honkela, Matti Pöllä, Kostantine Chandrinos, AQUA (Assisting Quality Assessment): a system based on Semantic web and information extraction technologies to support medical quality labelling agencies, 12th World Congress on the Internet in Medicine (Mednet) 2007, Leipzig, Germany, October 7-10, 2007 [doi]

Konstantinos Stamatakis, Konstantine Chandrinos, Vangelis Karkaletsis, Miguel Angel Mayer, Dagmar Villarroel Gonzales, Martin Labský, Enrique Amigo Cabrera, Matti Pöllä, AQUA, a system assisting labelling experts assess health web resources, 12th International Symposium for Health Information Management Research (iSHIMR) 2007, Sheffield, UK, July 18-20, 2007 [doi]

Silvana Castano, Sofia Espinosa, Alfio Ferrara, Vangelis Karkaletsis, Atila Kaya, Sylvia Melzer, Ralf Moller, Stefano Montanelli, Georgios Petasis, Ontology dynamics with multimedia information: The BOEMIE evolution methodology, International Workshop on Ontology Dynamics (IWOD) 2007 in the context of the 4th European Semantic Web Conference (ESWC) 2007, Innsbruck, Austria, June 7, Pages: 41-54, 2007 [doi]

Ion Androutsopoulos, Jon Oberlander, Vangelis Karkaletsis, Source authoring for multilingual generation of personalised object descriptions, Journal of Natural Language Engineering, Cambridge University Press, 13, Pages: 191–233, 2007 [doi]

Vassilis Spiliopoulos, Alexandros G. Valarakos, George A. Vouros, Vangelis Karkaletsis, Learning Subsumption Relations with CSR: A Classification based Method for the Alignment of Ontologies, 2nd International Workshop on Ontology Matching (OM) 2007 in the context of the 6th International Semantic Web Conference (ISWC) 2007 and the 2nd Asian Semantic Web Conference (ASWC) 2007, Busan, Korea, November 11, 2007 [doi]

Vassilis Spiliopoulos, George A. Vouros, Vangelis Karkaletsis, Mapping Ontologies Elements using Features in a Latent Space, IEEE / WIC / ACM International Conference on Web Intelligence (WI) 2007, Silicon Valley, CA, USA, November 2-5, Pages: 457–460, 2007 [doi]

Vassilis Spiliopoulos, Alexandros G. Valarakos, George A. Vouros, Vangelis Karkaletsis, SEMA: Results for the Ontology Alignment Contest OAEI 2007, 2nd International Workshop on Ontology Matching (OM) 2007 in the context of the 6th International Semantic Web Conference (ISWC) 2007 and the 2nd Asian Semantic Web Conference (ASWC) 2007, Busan, Korea, November 11, 2007 [doi]

Dimitris Bilidas, Maria Theologou, Vangelis Karkaletsis, Enriching OWL Ontologies with Linguistic and User-Related Annotations: The ELEON System, 19th IEEE International Conference on Tools with Artificial Intelligence (ICTAI) 2007, Patras, Greece, October 29-31, Pages: 464–467, 2007 [doi]

Konstantinos Stamatakis, Vangelis Metsis, Vangelis Karkaletsis, Marek Ruzicka, Vojtech Svatek, Enrique Amigo, Matti Polla, Constantine D. Spyropoulos, Content Collection for the Labelling of Health-Related Web Content, 11th Conference on Artificial Intelligence in Medicine (AIME) 2007, Amsterdam, The Netherlands, July 7-11, Pages: 341–345, 2007 [doi]

Fillia Makedon, Vangelis Karkaletsis, Ilias Maglogiannis, (Guest Editors Special Issue), Overview: Computational analysis and decision support systems in oncology, International Journal of Oncology reports, Spandidos Publications, 15, Pages: 971–974, 2006 [doi]

Dimitrios Kosmopoulos, Vangelis Karkaletsis, Stavros Perantonis, George Paliouras, Constantine D. Spyropoulos, Representation and Analysis of Multimedia Content: The BOEMIE Proposal, Workshop on Crossing media for improved information access (LREC) 2006, Genoa, Italy, May 24-26, Pages: 32-37, 2006 [doi]

Vangelis Karkaletsis, Konstantinos Stamatakis, Vangelis Metsis, Vassiliki Redoumi, Dimitris Tsarouhas, Health-related Web Content: quality labelling mechanisms and the MedIEQ approach, 4th International conference on Information Communication Technologies in Health (ICICTH) 2006, Samos, Greece, July 13-15, 2006 [doi]

Zhengyi Le, James C. Ford, Vangelis Karkaletsis, Vassilios Spiliopoulos, Sokratis Katsikas, Fillia Makedon, Secure group collaboration in an open health care environment, 4th International conference on Information Communication Technologies in Health (ICICTH) 2006, Samos, Greece, July 13-15, 2006 [doi]

Fillia Makedon, Vangelis Karkaletsis, George Giannakopoulos, Ilias Maglogiannis, James C. Ford, George Vassilakopoulos, Health Grid Cyberinfrastructure: Computational Perspectives, 4th International conference on Information Communication Technologies in Health (ICICTH) 2006, Samos, Greece, July 13-15, 2006 [doi]

Alexandros G. Valarakos, Vangelis Karkaletsis, Constantine D. Spyropoulos, Populating ontologies in biomedicine and presenting their content using multilingual generation, Workshop on Acquiring and Representing Multilingual, Specialized Lexicons: the Case of Biomedicine at LREC 2006, Genoa, Italy, May 23, Pages: 51-56, 2006 [doi]

Miquel Angel Mayer, Vangelis Karkaletsis, Phil Archer, Pau Ruiz, Konstantinos Stamatakis, Angela Leis, Quality labelling of medical web content, Health Informatics Journal, Sage, 12, Pages: 81–87, 2006 [doi]

Constantine D. Spyropoulos, Georgios Paliouras, Vangelis Karkaletsis, Dimitrios Kosmopoulos, Ioannis Pratikakis, Stavros Perantonis, Basilios Gatos, BOEMIE: Bootstrapping ontology evolution with multimedia information extraction, International Workshop for Intelligent Information Access (IIIA) 2006, Helsinki, Finland, July 6-8, 2006

Alexandros G. Valarakos, Vangelis Karkaletsis, Dimitra Alexopoulou, Elsa Papadimitriou, Constantine D. Spyropoulos, George A. Vouros, Building an allergens ontology and maintaining it using machine learning techniques, Computers in Biology and Medicine Journal, Elsevier, 36, Pages: 1155–1184, 2006 [doi]

Vangelis Karkaletsis, Andrea Perego, Phil Archer, Kostas Stamatakis, Pantelis Nasikas, David Rose, Quality Labeling of Web Content: The Quatro approach, 15th International World Wide Web Conference (WWW) 2006, Workshop on Models of Trust for the Web (MTW) 2006, Edinburgh, Scotland, UK, May 22-26, 2006 [doi]

Dimitrios I. Kosmopoulos, Sergios Petridis, Ioannis Pratikakis, Vasileios Gatos, Stavros J. Perantonis, Vangelis Karkaletsis, Georgios Paliouras, Knowledge Acquisition from Multimedia Content using an Evolution Framework, 3rd IFIP International Conference on Artificial Intelligence Applications and Innovations (AIAI) 2006, Athens, Greece, June 7-9, Pages: 557–565, 2006 [doi]

Constantine D. Spyropoulos, Vangelis Karkaletsis (Guest Editors Special Issue), Information extraction and summarization from medical documents, Journal of Artificial Intelligence in Medicine, Elsevier, 33, Pages: 107–110, 2005 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, An Open Platform for Collecting Domain Specific Web Pages and Extracting Information from Them, Knowledge Mining, Studies in Fuzziness and Soft Computing, volume 185, Springer, Berlin, Heidelberg, Pages: 147–157, 2005 [doi]

Stergos D. Afantenos, Vangelis Karkaletsis, Panagiotis Stamatopoulos, Summarizing Reports on Evolving Events; Part I: Linear Evolution, Conference on Recent Advances in Natural Language Processing (RANLP) 2005, Borovets, Bulgaria, September 21-23, Pages: 18-24, 2005 [doi]

Vangelis Karkaletsis, Georgios Paliouras, Constantine D. Spyropoulos, A Bootstrapping Approach to Knowledge Acquisition from Multimedia Content with Ontology Evolution, International and Interdisciplinary Conference on Adaptive Knowledge Representation and Reasoning (AKRR) 2005, Espoo, Finland, June 15-17, Pages: 98-105, 2005 [doi]

Miquel Angel Mayer, Vangelis Karkaletsis, Phil Archer, Pau Ruiz, Konstantinos Stamatakis, Angela Leis, Quality labelling of medical web content, 10th International Symposium on Health Information Management Research (ISHIMR) 2005, Thessaloniki, September 22-24, Pages: 326-331, 2005 [doi]

Stergos D. Afantenos, Konstantina Liontou, Maria Salapata, Vangelis Karkaletsis, An Introduction to the Summarization of Evolving Events: Linear and Non-linear Evolution, 2nd International Workshop on Natural Language Understanding and Cognitive Science (NLUCS) 2005 in conjunction with 7th International Conference on Enterprise Information Systems (ICEIS) 2005, Miami, FL, USA, May 24-28, Pages: 91–99, 2005 [doi]

Stergos D. Afantenos, Vangelis Karkaletsis, Panagiotis Stamatopoulos, Summarization from medical documents: a survey, Artificial Intelligence in Medicine, Elsevier, 33, Pages: 157–177, 2005 [doi]

Ion Androutsopoulos, Spyros Kallonis, Vangelis Karkaletsis, Exploiting OWL Ontologies in the Multilingual Generation of Object Descriptions, 10th European Workshop on Natural Language Generation (ENLG) 2005, Aberdeen, UK, August 8-10, Pages: 150-155, 2005 [doi]

Alexandros G. Valarakos, Vangelis Karkaletsis, Dimitra Alexopoulou, Elsa Papadimitriou, Constantine D. Spyropoulos, Populating an Allergens Ontology Using Natural Language Processing and Machine Learning Techniques, 10th Conference on Artificial Intelligence in Medicine (AIME) 2005, Aberdeen, UK, July 23-27, Pages: 256–265, 2005 [doi]

Constantine D. Spyropoulos, Georgios Paliouras, Vangelis Karkaletsis, Dimitrios Kosmopoulos, Ioannis Pratikakis, Stavros Perantonis, Basilios Gatos, BOEMIE: Bootstrapping ontology evolution with multimedia information extraction, 2nd European Workshop on the Integration of Knowledge, Semantics and Digital Media Technology (EWIMT) 2005, London, UK, November 30-December 1, Pages: 419–420, 2005 [doi]

Stavros J. Perantonis, Basilios Gatos, Vassilios Maragos, Vangelis Karkaletsis, Georgios Petasis, Text Area Identification in Web Images, 3rd Hellenic Conference on Artificial Intelligence: Methods and Applications of AI (SETN) 2004, Samos, Greece, May 5-8, Pages: 82–92, 2004 [doi]

Georgios Petasis, Georgios Paliouras, Vangelis Karkaletsis, Constantine Halatsis, Constantine D. Spyropoulos, e-GRIDS: Computationally Efficient Gramatical Inference from Positive Examples, Grammars: A Journal of Mathematical Research on Formal and Natural Languages, Springer, 7, Pages: 69–110, 2004 [doi]

Alexandros G. Valarakos, Georgios Paliouras, Vangelis Karkaletsis, George A. Vouros, A Name-Matching Algorithm for Supporting Ontology Enrichment, 3rd Hellenic Conference on Artificial Intelligence: Methods and Applications of AI (SETN) 2004, Samos, Greece, May 5-8, Pages: 381–389, 2004 [doi]

Alexandros G. Valarakos, Georgios Paliouras, Vangelis Karkaletsis, George A. Vouros, Enhancing Ontological Knowledge Through Ontology Population and Enrichment, 14th International Conference on Knowledge Engineering and Knowledge Management (EKAW) 2004: Engineering Knowledge in the Age of the Semantic Web, Northamptonshire, UK, October 5-8, Pages: 144–156, 2004 [doi]

Georgios Petasis, Vangelis Karkaletsis, Georgios Paliouras, Constantine D. Spyropoulos, Ellogon: A Natural Language Engineering Infrastructure, 3rd Hellenic Conference on Artificial Intelligence: Methods and Applications of AI (SETN) 2004, Samos, Greece, May 5-8, 2004 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Claire Grover, Maria Teresa Pazienza, Jose Coch, Dimitris Souflis, A Platform for Cross-Lingual, Domain and User Adaptive Web Information Extraction, 16th European Conference on Artificial Intelligence (ECAI) 2004, including Prestigious Applicants of Intelligent Systems (PAIS) 2004, Valencia, Spain, August 22-27, Pages: 725–729, 2004 [doi]

Stergos D. Afantenos, Irene Doura, Eleni Kapellou, Vangelis Karkaletsis, Exploiting Cross-Document Relations for Multi-document Evolving Summarization, 3rd Hellenic Conference on Artificial Intelligence: Methods and Applications of AI (SETN) 2004, Samos, Greece, May 5-8, Pages: 410–419, 2004 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Information Retrieval and Extraction from the Web: the CROSSMARC approach, 7th International Conference on Computer-Assisted Information Retrieval, (Recherche d'Information et ses Applications) (RIAO) 2004, Avignon, France, April 26-28, Pages: 905–914, 2004 [doi]

Sheng Zhang, Fillia Makedon, James C. Ford, Calliope Sudborough, Lin Ai, Sarantos Kapidakis, Vangelis Karkaletsis, Euripidis N. Loukis, An International Trade Negotiation Framework for e-Government, 3rd International Conference on Electronic Government (EGOV) 2004, Zaragoza, Spain, August 30-September 3, Pages: 211–217, 2004 [doi]

Georgios Petasis, Vangelis Karkaletsis, Claire Grover, Ben Hachey, Maria Teresa Pazienza, Michele Vindigni, Jose Coch, Adaptive, Multilingual Named Entity Recognition in Web Pages, 16th European Conference on Artificial Intelligence (ECAI) 2004, including Prestigious Applicants of Intelligent Systems (PAIS) 2004, Valencia, Spain, August 22-27, Pages: 1073–1074, 2004 [doi]

Vangelis Karkaletsis, Stelios Piperidis (Editors), Proceedings of the International Workshop Balkan Language Resources and Tools, 1st Balkan Conference in Informatics (BCI) 2003, Thessaloniki, Greece, November 21, Incoma, 2003

Georgios Petasis, Vangelis Karkaletsis, Georgios Paliouras, Constantine D. Spyropoulos, Using the ellogon natural language engineering infrastructure, 1st Balkan Conference in Informatics (BCI) 2003, Workshop on Balkan Language Resources and Tools, Thessaloniki, Greece, November 19-21, 2003 [doi]

Georgios Petasis, Vangelis Karkaletsis, Constantine D. Spyropoulos, Cross-lingual Information Extraction from Web pages: the use of a general-purpose Text Engineering Platform, Recent Advances in Natural Language Processing Conference (RANLP) 2003, Borovets, Bulgaria, September 10-12, Pages: 381-388, 2003 [doi]

Georgios Sakkis, Ion Androutsopoulos, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Panagiotis Stamatopoulos, A Memory-Based Approach to Anti-Spam Filtering for Mailing Lists, Information Retrieval Journal, Springer, 6, Pages: 49–73, 2003 [doi]

Georgios Sigletos, Dimitra Farmakiotou, Konstantinos Stamatakis, Georgios Paliouras, Vangelis Karkaletsis, Annotating Web pages for the needs of Web Information Extraction Applications, 12th International World Wide Web Conference (WWW) 2003, Budapest, Hungary, May 20-24, 2003 [doi]

Dimitrios Pierrakos, Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Marios D. Dikaiakos, Web Community Directories: A New Approach to Web Personalization, 1st European Web Mining Forum (EMWF) 2003, Web Mining: From Web to Semantic Web, Revised Selected and Invited Papers, Cavtat - Dubrovnik, Croatia, September 22, Pages: 113–129, 2003 [doi]

Alexandros Valarakos, Georgios Sigletos, Vangelis Karkaletsis, Georgios Paliouras, A Methodology for Semantically Annotating a Corpus Using a Domain Ontology and Machine Learning, Recent Advances in Natural Language Processing Conference (RANLP) 2003, Borovets, Bulgaria, September 10-12, Pages: 495-499, 2003 [doi]

Konstantinos Stamatakis, Vangelis Karkaletsis, Georgios Paliouras, James Horlock, Claire Grover, James R. Curran, Shipra Dingare, Domain-specific Web site identification: the CROSSMARC focused Web crawler, 2nd International Workshop on Web Document Analysis (WDA) 2003, Edinburgh, UK, August 3, 75, Pages: 78, 2003 [doi]

Alexandros G. Valarakos, Georgios Sigletos, Vangelis Karkaletsis, Georgios Paliouras, George A. Vouros, A methodology for enriching a multi-lingual domain ontology using machine learning, 6th ICGL Workshop on Text Processing for Modern Greek: from Symbolic to Statistical Approaches held as part of the 6th International Conference in Greek Linguistics, Rethymno, Crete, September 18-21, 2003 [doi]

Dimitrios Pierrakos, Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Marios Dikaiakos, Construction of Web Community Directories by Mining Usage Data, 2nd Hellenic Data Management Symposium (HDMS) 2003, Athens, Greece, September 4-5, 2003 [doi]

Maria Teresa Pazienza, Armando Stellato, Michele Vindigni, Alexandros Valarakos, Vangelis Karkaletsis, Ontology integration in a multilingual e-retail system, Human Computer Interaction International (HCII) 2003, Heraklion, Crete, June 22-27, 2003 [doi]

Ben Hachey, Claire Grover, Vangelis Karkaletsis, Alexandros Valarakos, Maria Teresa Pazienza, Michele Vindigni, Emmanuel Cartier, Jose Coch, Use of ontologies for cross-lingual information management in the Web, Ontologies and Information Extraction International Workshop held as part of the EUROLAN, Bucharest, Romania, July 28-August 8, 2003 [doi]

Marina Vassiliou, Stella Markantonatou, Yanis Maistros, Vangelis Karkaletsis, Evaluating Specifications for Controlled Greek, Conference on Controlled Language Translation (EAMT/CLAW) 2003, Dublin, Ireland, May 15-17, Pages: 185-193, 2003 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Cross-lingual Information Management from the Web, 9th Panhellenic Conference in Informatics (PCI) 2003, Thessaloniki, November 21-23, 2003 [doi]

Dimitrios Pierrakos, Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Marios Dikaiakos, Construction of Web community directories using document clustering and Web usage mining, 1st European Web Mining Forum Workshop at the 14th Joint European Conference on Machine Learning and the 7th European Conference on Principles and Practices of Knowledge Discovery in Databases (ECML/PKDD) 2003, Cavtat-Dubrovnik, Croatia, September 22-26, Pages: 25-36, 2003 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Dimitris Souflis, Claire Grover, Ben Hachey, Maria Teresa Pazienza, Michele Vindigni, Emmanuel Cartier, Jose Coch, Demonstration of the CROSSMARC System, Human Language Technology Conference of the North American Chapter of the Association for Computational Linguistics (HLT-NAACL) 2003, Edmonton, Canada, May 27-June 1, Pages: 13-14, 2003 [doi]

Georgios Petasis, Sergios Petridis, Georgios Paliouras, Vangelis Karkaletsis, Stavros J. Perantonis, Constantine D. Spyropoulos, Symbolic and Neural Learning of Named-Entity Recognition and Classification Systems in Two Languages, Advances in Computational Intelligence and Learning: Methods and Applications, International Series in Intelligent Technologies, volume 18, Springer, Dordrecht, Pages: 193–210, 2002 [doi]

Dimitra Farmakiotou, Vangelis Karkaletsis, Georgios Samaritakis, Georgios Petasis, Constantine D. Spyropoulos, Named Entity Recognition from Greek Web Pages, 2nd Hellenic Conference on AI: Methods and Applications of Artificial Intelligence (SETN) 2002, Thessaloniki, Greece, April 11-12, Pages: 91–102, 2002 [doi]

Georgios Sigletos, Georgios Paliouras, Vangelis Karkaletsis, Role Identification from Free Text Using Hidden Markov Models, 2nd Hellenic Conference on AI: Methods and Applications of Artificial Intelligence (SETN) 2002, Thessaloniki, Greece, April 11-12, Pages: 167–178, 2002 [doi]

Georgios Petasis, Vangelis Karkaletsis, Georgios Paliouras, Ion Androutsopoulos, Constantine D. Spyropoulos, Ellogon: A New Text Engineering Platform, 3rd International Conference on Language Resources and Evaluation (LREC) 2002, Las Palmas, Canary Islands, Spain, May 29-31, Pages: 72-78, 2002 [doi]

Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Constantine D. Spyropoulos, Discovering user communities on the Internet using unsupervised machine learning techniques, Interacting with Computers, Oxford Academic, 14, Pages: 761–791, 2002 [doi]

Ion Androutsopoulos, Dimitris Spiliotopoulos, Konstantinos Stamatakis, Aggeliki Dimitromanolaki, Vangelis Karkaletsis, Constantine D. Spyropoulos, Symbolic Authoring for Multilingual Natural Language Generation, 2nd Hellenic Conference on AI: Methods and Applications of Artificial Intelligence (SETN) 2002, Thessaloniki, Greece, April 11-12, Pages: 131–142, 2002 [doi]

Claire Grover, Scott McDonald, Donnla Nic Gearailt, Vangelis Karkaletsis, Dimitra Farmakiotou, Georgios Samaritakis, Georgios Petasis, Maria Teresa Pazienza, Michele Vindigni, Frantz Vichot, Francis Wolinski, Multilingual XML-Based Named Entity Recognition for E-Retail Domains, 3rd International Conference on Language Resources and Evaluation (LREC) 2002, Las Palmas, Canary Islands, Spain, May 29-31, 2002 [doi]

Dimitra Farmakiotou, Vangelis Karkaletsis, Ioannis Koutsias, George Petasis, Constantine D. Spyropoulos, PatEdit: An Information Extraction Pattern Editor for Fast System Customization, 3rd International Conference on Language Resources and Evaluation (LREC) 2002, Las Palmas, Canary Islands, Spain, May 29-31, 2002 [doi]

Stella Markantonatou,Vangelis Karkaletsis, Yanis Maistros, An Authoring Tool for Controlled Modern Greek, 2nd Hellenic Conference on AI: Methods and Applications of Artificial Intelligence (SETN) 2002, Thessaloniki, Greece, April 11-12, Pages: 165–176, 2002 [doi]

Georgios Sakkis, Georgios Paliouras, Ion Androutsopoulos, Vangelis Karkaletsis, A memory-based approach to anti-spam filtering, NCSR "Demokritos", Technical Report DEMO, 2001 [doi]

George Petasis, Vangelis Karkaletsis, Dimitra Farmakiotou, George Samaritakis, Ion Androutsopoulos, Constantine D. Spyropoulos, A Greek Morphological Lexicon and its Exploitation by a Greek Controlled Language Checker, 8th Panhellenic Conference on Informatics: Advances in Informatics (PCI) 2001, Nicosia, Cyprus, November 8-10, Pages: 8–10, 2001 [doi]

Evangelia Kopanaki, Vangelis Karkaletsis, Constantine D. Spyropoulos, Nikos Avradinis, Nikos Fakotakis, Theodore Kalamboukis, Basilis Kladis, Yannis Lazarou, Themis Panayiotopoulos, Diomidis Spinellis, MITOS: An integrated web-based system for information management, 8th Panhellenic Conference on Informatics: Advances in Informatics (PCI) 2001, Nicosia, Cyprus, November 8-10, 2001 [doi]

Alexandros Grigoriadis, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Identifying Word Senses in Greek Text: A comparison of machine learning methods, European Workshop on Intelligent Forecasting, Diagnosis and Control (IFDICON) 2001, Santorini, Greece, June 24-28, Pages: 107–113, 2001 [doi]

Vangelis Karkaletsis, Georgios Samaritakis, Georgios Petasis, Dimitra Farmakiotou, Ion Androutsopoulos, Constantine D. Spyropoulos, A Controlled Language Checker Based on the Ellogon Text Engineering Platform, 2nd Meeting of the North American Chapter of the Association for Computational Linguistics (NAACL) 2001, Pittsburgh, USA, June 2-7, Pages: 74–75, 2001 [doi]

Konstantinos Koutroumbas, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Comparison of Computational Learning Methods on a Diagnostic Cytological Application, European Symposium on Intelligent Technologies, Hybrid Systems and their implementation on Smart Adaptive Systems (EUNITE) 2001, Tenerife, Spain, December 13-14, Pages: 500-508, 2001 [doi]

Georgios Petasis, Frantz Vichot, Francis Wolinski, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Using Machine Learning to Maintain Rule-based Named-Entity Recognition and Classification Systems, 39th Annual Meeting of the Association for Computational Linguistic, Toulouse, France, July 9-11, Pages: 426–433, 2001 [doi]

Georgios Sakkis, Ion Androutsopoulos, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Panagiotis Stamatopoulos, Stacking Classifiers for Anti-Spam Filtering of E-Mail, International Conference on Empirical Methods in Natural Language Processing (EMNLP) 2001, Pittsburgh, USA, June 3-4, Pages: 44-50, 2001 [doi]

Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos (Editors), Machine Learning and Its Applications: Advanced Lectures, Springer, Berlin, Heidelberg, 2049, 2001 [doi]

Marina Vassiliou, Stella Markantonatou, Yanis Maistros, Vangelis Karkaletsis, Controlled Greek: Design and Implementation, 5th International Conference on Greek Linguistics, Sorbonne, France, September 13-15, Pages: 323-325, 2001

Aggeliki Dimitromanolaki, Ion Androutsopoulos, Vangelis Karkaletsis, A large-scale systemic functional grammar of Greek, 5th International Conference on Greek Linguistics, Sorbonne, France, September 13-15, 2001 [doi]

Georgios Petasis, Vangelis Karkaletsis, Dimitra Farmakiotou, Ion Androutsopoulos, Constantine D. Spyropoulos, A Greek Morphological Lexicon and Its Exploitation by Natural Language Processing Applications, 8th Panhellenic Conference on Informatics: Advances in Informatics (PCI) 2001, Nicosia, Cyprus, November 8-10, Pages: 401–419, 2001 [doi]

Georgios Petasis, Sergios Petridis, Georgios Paliouras, Vangelis Karkaletsis, Stavros J. Perantonis, Constantine D. Spyropoulos, Symbolic and neural learning for named-entity recognition, Symposium on Computational Intelligence and Learning (COIL) 2000, Chios, Greece, June 22-23, Pages: 58–66, 2000 [doi]

Georgios Paliouras, Vangelis Karkaletsis, Ion Androutsopoulos, Constantine D. Spyropoulos, Learning Rules for Large-Vocabulary Word Sense Disambiguation: A Comparison of Various Classifiers, 2nd International Conference on Natural Language Processing (NLP) 2000, Patras, Greece, June 2-4, Pages: 383–394, 2000 [doi]

Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Panayotis Tzitziras, Constantine D. Spyropoulos, Large-scale mining of usage data on web sites, AAAI Spring Symposium on Adaptive User Interfaces, Stanford, California, March 20-22, Pages: 92–97, 2000 [doi]

Dimitra Farmakiotou, Vangelis Karkaletsis, John Koutsias, George Sigletos, Constantine D. Spyropoulos, Panagiotis Stamatopoulos, Rule-based named entity recognition for Greek financial texts, Workshop on Computational lexicography and Multimedia Dictionaries (COMLEX) 2000, Patras, Greece, September 22-23, Pages: 75–78, 2000 [doi]

Georgios Petasis, Alessandro Cucchiarelli, Paola Velardi, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Automatic adaptation of proper noun dictionaries through cooperation of machine learning and probabilistic methods, 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 2000, Athens, Greece, July 24-28, Pages: 128–135, 2000 [doi]

Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Constantine D. Spyropoulos, Clustering the Users of Large Web Sites into Communities, 17th International Conference on Machine Learning (ICML) 2000, Stanford, CA, USA, June 29-July 2, Pages: 719–726, 2000 [doi]

Ion Androutsopoulos, Georgios Paliouras, Vangelis Karkaletsis, Georgios Sakkis, Constantine D. Spyropoulos, Panagiotis Stamatopoulos, Learning to Filter Spam E-Mail: A Comparison of a Naive Bayesian and a Memory-Based Approach, Workshop on Machine Learning and Textual Information Access at the 4th European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD) 2000, Lyon, France, September 13-16, Pages: 1-13, 2000 [doi]

Georgios Paliouras, Vangelis Karkaletsis, Georgios Petasis, Constantine D. Spyropoulos, Learning decision trees for named-entity recognition and classification, Workshop on Machine Learning for Information Extraction at the European Conference in Artificial Intelligence (ECAI) 2000, Berlin, Germany, August 20-25, 2000 [doi]

Constantine D. Spyropoulos, Vangelis Karkaletsis, Guest Editorial: Artificial Intelligence and Software Multilinguality, Applied Artificial Intelligence Journal, Taylor & Francis, 13, Pages: 569–582, 1999 [doi]

Georgios Paliouras, Vangelis Karkaletisis, Christos Papatheodorou, Constantine D. Spyropoulos, Exploiting Learning Techniques for the Acquisition of User Stereotypes and Communities, 7th International Conference on User Modeling (UM) 1999, Banff, Canada, June 20-24, Pages: 169–178, 1999 [doi]

Georgios Petasis, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Ion Androutsopoulos, Using machine learning techniques for part-of-speech tagging in the Greek language, 7th Hellenic Conference on Informatics (HCI) 1999, Ioannina, Greece, August 26-29, Pages: 273–281, 1999 [doi]

Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Learning Rules for Large Vocabulary Word Sense Disambiguation, 16th International Joint Conference on Artificial Intelligence (IJCAI) 1999, Stockholm, Sweden, July 31-August 6, Pages: 674–681, 1999 [doi]

Georgios Petasis, Georgios Paliouras, Vangelis Karkaletsis, Constantine D. Spyropoulos, Ion Androutsopoulos, Resolving Part-of-Speech Ambiguity in the Greek Language Using Learning Techniques, CoRR, cs.CL/9906019, 1999 [doi]

Vangelis Karkaletsis, Georgios Paliouras, Georgios Petasis, Natasa Manousopoulou, Constantine D. Spyropoulos, Named-Entity Recognition from Greek and English Texts, Journal of Intelligent and Robotic Systems, Springer, 26, Pages: 123–135, 1999 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, George Petasis, Named Entity Recognition from Greek texts: the GIE Project, Advances in Intelligent Systems: Concepts, Tools and Applications, International Series on Microprocessor-Based and Intelligent Systems Engineering, volume 21, Springer, Dordrecht, Pages: 131–142, 1999 [doi]

Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Panayiotis Tzitziras, Constantine D. Spyropoulos, Learning communities of the acai99 web site visitors, Workshop on Machine learning in user modeling at ACAI 1999, Pages: 65–73, 1999

Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Costantine D. Spyropoulos, Panayiotis Tzitziras, From web usage statistics to web usage analysis, IEEE SMC 1999 International Conference on Systems, Man, and Cybernetics, Tokyo, Japan, October 12-15, Pages: 159–164, 1999 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Towards a User-Friendly Information Society, ELSNET in Wonderland Conference, Soestenberg, Holland, March 25-27, Pages: 66-72, 1998

Georgios Paliouras, Vangelis Karkaletsis, Costantine D. Spyropoulos, Machine learning for domain-adaptive word sense disambiguation, Workshop on Adapting Lexical and Corpus Resources to Sublanguages and Applications at the International Conference on Language Resources and Evaluation, Granada, Spain, May 28-30, 1998 [doi]

Georgios Paliouras, Christos Papatheodorou, Vangelis Karkaletsis, Constantine D. Spyropoulos, Victoria Malaveta, Learning User Communities for Improving the Services of Information Providers, 2nd European Conference on Research and Advanced Technology for Digital Libraries (ECDL) 1998, Heraklion, Crete, Greece, September 21-23, Pages: 367–383, 1998 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Towards a User-Friendly Information Society: the role of Software Globalisation, User Modelling and Information Extraction Technologies, 1st Panhelennic Conference on New Information Technology (NIT) 1998, Athens, Greece, October 8-10, 1998

Vangelis Karkaletsis, Constantine D. Spyropoulos, George A. Vouros, A Knowledge-Based Methodology for Supporting Multilingual and User-Tailored Interfaces, Interacting with Computers: The Interdisciplinary Journal of Human Computer Interaction, Oxford Academic, 9, Pages: 311–333, 1998 [doi]

Timo Honkela, Aarno Lehtola, Sakari Kalliomaki, Risto Suitiala, Ray Hudson, Vangelis Karkaletsis, George Vouros, A Recommended Globalization Method, Software Without Frontiers: A multi-platform, multi-cultural, multi-nation approach, J. Wiley & Sons, Pages: 33–50, 1997 [doi]

George Vouros, Vangelis Karkaletsis, Constantine D. Spyropoulos, Documentation and Translation, Software Without Frontiers: A multi-platform, multi-cultural, multi-nation approach, J. Wiley & Sons, Pages: 167–202, 1997

Vangelis Karkaletsis, Constantine D. Spyropoulos, Eftihia Benaki, Customising Information Extraction Templates according to Users Interests, International Workshop on Lexically Driven Information Extraction (LDIE) 1997, Frascatti, Rome, July 16, Pages: 23–38, 1997

Eftihia Benaki, Vangelis Karkaletsis, Constantine D. Spyropoulos, Integrating user modeling into information extraction: The UMIE prototype, 6th International Conference on User Modeling (UM) 1997, Chia Laguna, Sardinia, Italy, June 2-5, Pages: 55–57, 1997 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, A knowledge-based organisation of lexical resources to support multilingual information retrieval in software localisation, 1997 AAAI Symposium on Cross-Language and Speech Retrieval, Stanford, California, March 24-26, Pages: 120–126, 1997 [doi]

Vangelis Karkaletsis, Constantine C. Spyropoulos, George Vouros, Timo Honkela, Krista Lagus, Aarno Lehtola, Message Generation, Software Without Frontiers: A multi-platform, multi-cultural, multi-nation approach, J.Wiley & Sons, Pages: 203–218, 1997 [doi]

Eftihia Benaki, Vangelis Karkaletsis, Constantine D. Spyropoulos, User modeling in WWW: The UMIE prototype, Workshop Adaptive systems and user modeling on the World Wide Web, 6th International Conference User Modeling (UM) 1997, Chia Laguna, Sardinia, Italy, June 2-5, Pages: 13–21, 1997

Constantine D. Spyropoulos, Vangelis Karkaletsis, Report on the MULSAIC’96 Workshop Multilinguality in Software Industry: the AI Contribution, 1997 AAAI Symposium on Cross-Language and Speech Retrieval, Stanford, California, March 24-26, Pages: 217-219, 1997 [doi]

Constantine D. Spyropoulos, Vangelis Karkaletsis, On line Generation of Messages: A Knowledge-based Approach, Workshop on Multilinguality in Software Industry: The AI Contribution (MULSAIC) 1996 in conjuction with the ECAI 1996, Budapest, Hungary, August 12-13, 1996

Vangelis Karkaletsis, Constantine D. Spyropoulos, Exploiting an AI-based Approach in Multilingual Software Industry, Workshop on Multilinguality in Software Industry: The AI Contribution (MULSAIC) 1996 in conjuction with the ECAI 1996, Budapest, Hungary, August 12-13, 1996

Vangelis Karkaletsis, Information Extraction from Texts, 1st Symposium of the Hellenic Association of Artificial Intelligence (SETN) 1996, Pages: 20, 1996

Vangelis Karkaletsis, Constantine D. Spyropoulos, George Vouros, Constantin Halatsis, Organisation and exploitation of terminological knowledge in software localisation, TermNet News: Journal of the International Network for Terminology, 48, Pages: 42-48, 1995 [doi]

Constantine D. Spyropoulos, Vangelis Karkaletsis, George Vouros, Timo Honkela, Krista Lagus, Aarno Lehtola, Investigating on line message generation in software applications: The GLOSSASOFT results, ERCIM Workshop on Towards User Interfaces for All: Current Efforts and Future Trends, Heraklion, Greece, October 30-31, 1995 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Software Localisation and the GLOSSASOFT project, Τhe LISA Forum, Heidelberg, Germany, April 21-22, 1994

Vangelis Karkaletsis, Constantine D. Spyropoulos, George Vouros, A Knowledge-based Approach for Organising Terminological Data and Generating Messages in Software Applications, Workshop Language Engineering on the Information Highway, Santorini, Greece, September 26-30, 1994

Vangelis Karkaletsis, Constantine D. Spyropoulos, George A. Vouros, The Use of Terminological Knowledge Bases in Software Localization, 3rd International (EAMT) Workshop on Machine Translation and the Lexicon, Heidelberg, Germany, April 26-28, Pages: 175–188, 1993 [doi]

Vangelis Karkaletsis, Constantine D. Spyropoulos, Software Internationalisation and Localisation, 4th Panhellenic Conference on Informatics, Patras, Greece, December, Pages: 629-640, 1993

Alexandros Papangelis and Vangelis Karkaletsis and Fillia Makedon, Online Complex Action Learning and User State Estimation for Adaptive Dialogue Systems, {IEEE, Pages: 642--649, 2012 [doi]