Aris Lanaridis, Giorgos Siolas, Andreas Stafylopatis: Artificial Immune Classifier Based on ELLipsoidal Regions (AICELL) Computation 5(2): 31 (2017)
Georgios Alexandridis, Georgios Siolas, Andreas Stafylopatis: Enhancing social collaborative filtering through the application of non-negative matrix factorization and exponential random graph models. Data Min. Knowl. Discov. 31(4): 1031-1059 (2017)
Eleni Tsalapati, Giorgos Stoilos, Alexandros Chortaras, Giorgos Stamou, George Koletsos:
Query Rewriting Under Ontology Change. Comput. J. 60(3): 389-409 (2017)
Eleni Vathi, Georgios Siolas, Andreas Stafylopatis: Mining and categorizing interesting topics in Twitter communities. Journal of Intelligent and Fuzzy Systems 32(2): 1265-1275 (2017)
Enrique Matos Alfonso, Giorgos Stamou: Rewriting Queries with Negated Atoms. RuleML+RR 2017: 151-167
Christos Varytimidis, Konstantinos Rapantzikos, Yannis S. Avrithis, Stefanos D. Kollias:
α-shapes for local feature detection. Pattern Recognition 50: 56-73 (2016)
Alexandros Chortaras, Bernardo Cuenca Grau, Giorgos B. Stamou, Giorgos Stoilos:
Reformulating Ontological Queries Using Materialised Rewritings. WIMS 2016: 17:1-17:8
Aggeliki Vlachostergiou, Georgios Stratogiannis, George Caridakis, George Siolas, Phivos Mylonas: User Adaptive and Context-Aware Smart Home Using Pervasive and Semantic Technologies. J. Electrical and Computer Engineering 2016: 4789803:1-4789803:20 (2016)
Dimitrios Koutsoukos, Georgios Alexandridis, Georgios Siolas, Andreas Stafylopatis: A new approach to session identification by applying fuzzy c-means clustering on web logs. SSCI 2016: 1-8
Giorgos Stoilos, Tassos Venetis, Giorgos Stamou:
A Fuzzy Extension to the OWL 2 RL Ontology Language. Comput. J. 58(11): 2956-2971 (2015)
Giorgos Siolas, George Caridakis, Phivos Mylonas, Georgios Stratogiannis, Stefanos D. Kollias, Andreas Stafylopatis:
Context-Aware User Modeling and Semantic Interoperability in Smart Home Environments. IJVCSN 7(3): 17-50 (2015)
Christos Varytimidis, Konstantinos Rapantzikos, Yannis S. Avrithis, Stefanos D. Kollias:
Dithering-based Sampling and Weighted α-shapes for Local Feature Detection. IPSJ Trans. Computer Vision and Applications 7: 189-200 (2015)
Despoina Trivela, Giorgos Stoilos, Alexandros Chortaras, Giorgos B. Stamou:
Optimising resolution-based rewriting algorithms for OWL ontologies. J. Web Sem. 33: 30-49 (2015)
Birte Glimm, Yevgeny Kazakov, Ilianna Kollia, Giorgos B. Stamou:
Lower and Upper Bounds for SPARQL Queries over OWL Ontologies. AAAI 2015: 109-115
Giorgos Tolias, Yannis Kalantidis, Yannis S. Avrithis, Stefanos D. Kollias:
Towards large-scale geometry indexing by feature selection. Computer Vision and Image Understanding 120: 31-45 (2014)
Georgios Stratogiannis, Georgios Siolas, Andreas Stafylopatis: Semantic Question Answering Using Wikipedia Categories Clustering. International Journal on Artificial Intelligence Tools 23(4) (2014)
Stylianos Asteriadis, Kostas Karpouzis, Stefanos D. Kollias:
Visual Focus of Attention in Non-calibrated Environments using Gaze Estimation. International Journal of Computer Vision 107(3): 293-316 (2014)
Tassos Venetis, Giorgos Stoilos, Giorgos B. Stamou:
Query Extensions and Incremental Query Rewriting for OWL 2 QL Ontologies. J. Data Semantics 3(1): 1-23 (2014)
Giorgos Stoilos, Giorgos B. Stamou: Hybrid Query Answering Over DL Ontologies. Description Logics 2014: 336-339
Giorgos Stoilos, Giorgos B. Stamou: Reasoning with fuzzy extensions of OWL and OWL 2. Knowl. Inf. Syst. 40(1): 205-242 (2014)
Georgios Goudelis, Kostas Karpouzis, Stefanos D. Kollias: Exploring trace transform for robust human action recognition. Pattern Recognition 46(12): 3238-3248 (2013)
Christos Ferles, Georgios Siolas, Andreas Stafylopatis: Scaled Self-Organizing Map - Hidden Markov Model Architecture for Biological sequence Clustering. Applied Artificial Intelligence 27(6): 461-495 (2013)
Christos Ferles, Andreas Stafylopatis: Self-Organizing Hidden Markov Model Map (SOHMMM). Neural Networks 48: 133-147 (2013)
Birte Glimm, Yevgeny Kazakov, Ilianna Kollia, Giorgos B. Stamou:
Using the TBox to Optimise SPARQL Queries. Description Logics 2013: 181-196
Georgios Alexandridis, Georgios Siolas, Andreas Stafylopatis: Improving Social Recommendations by applying a Personalized Item Clustering Policy. RSWeb@RecSys 2013
Theofilos P. Mailis, Giorgos Stoilos, Nikos Simou, Giorgos B. Stamou, Stefanos D. Kollias:
Tractable reasoning with vague knowledge using fuzzy EL++. J. Intell. Inf. Syst. 39(2): 399-440 (2012)
Georgios Alexandridis, Georgios Siolas, Andreas Stafylopatis: Applying k-Separability to Collaborative Recommender Systems. International Journal on Artificial Intelligence Tools 21(1) (2012)
Ilianna Kollia, Vassilis Tzouvaras, Nasos Drosopoulos, Giorgos B. Stamou:
A systemic approach for effective semantic access to cultural content. Semantic Web 3(1): 65-83 (2012)
George Caridakis, Kostas Karpouzis, Athanasios I. Drosopoulos, Stefanos D. Kollias: Non parametric, self organizing, scalable modeling of spatiotemporal inputs: The sign language paradigm. Neural Networks 36: 157-166 (2012)
Aris Lanaridis, Andreas Stafylopatis:
An Artificial Immune Classifier Using Pseudo-Ellipsoid Rules. ISCIS 2011: 395-401
Konstantinos Rapantzikos, Yannis S. Avrithis, Stefanos D. Kollias: Spatiotemporal Features for Action Recognition and Salient Event Detection. Cognitive Computation 3(1): 167-184 (2011)
Yannis Kalantidis, Giorgos Tolias, Yannis S. Avrithis, Marios Phinikettos, Evaggelos Spyrou, Phivos Mylonas, Stefanos D. Kollias: VIRaL: Visual Image Retrieval and Localization. Multimedia Tools Appl. 51(2): 555-592 (2011)
Alexandros Chortaras, Despoina Trivela, Giorgos B. Stamou:
Optimized Query Rewriting for OWL 2 QL. CADE 2011: 192-206
Giorgos Stoilos, Giorgos B. Stamou, Jeff Z. Pan: Fuzzy extensions of OWL: Logical properties and reduction to fuzzy description logics. Int. J. Approx. Reasoning 51(6): 656-679 (2010)
Georgios Alexandridis, Georgios Siolas, Andreas Stafylopatis:
An Efficient Collaborative Recommender System Based on k-Separability. ICANN (3) 2010: 198-207
George Caridakis, Kostas Karpouzis, Athanasios I. Drosopoulos, Stefanos D. Kollias:SOMM: Self organizing Markov map for gesture recognition. Pattern Recognition Letters 31(1): 52-59 (2010)
Evaggelos Spyrou, Yannis Kalantidis, Giorgos Tolias, Phivos Mylonas, Stefanos D. Kollias: Intelligent content retrieval using a visual vocabulary and geometric constraints. FUZZ-IEEE 2010: 1-8
Paraskevi K. Tzouveli, Nikos Simou, Giorgos B. Stamou, Stefanos D. Kollias:
Semantic Classification of Byzantine Icons. IEEE Intelligent Systems 24(2): 35-43 (2009)
Lori Malatesta, Amaryllis Raouzaiou, Kostas Karpouzis, Stefanos D. Kollias: Towards modeling embodied conversational agent character profiles using appraisal theory predictions in expression synthesis. Appl. Intell. 30(1): 58-64 (2009)
Stylianos Asteriadis, Paraskevi K. Tzouveli, Kostas Karpouzis, Stefanos D. Kollias: Estimation of behavioral user state based on eye gaze and head pose - application in an e-learning environment. Multimedia Tools Appl. 41(3): 469-493 (2009)
Konstantinos Rapantzikos, Nicolas Tsapatsoulis, Yannis S. Avrithis, Stefanos D. Kollias: Spatiotemporal saliency for video classification. Sig. Proc.: Image Comm. 24(7): 557-571 (2009)
Minas Pertselakis, Natali Raouzaiou, Andreas Stafylopatis: An Adaptive Resource Allocating Neuro-Fuzzy Inference System with Sensitivity Analysis Resource Control. AIAI 2009: 509-516
Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis:
Definition and Adaptation of Weighted Fuzzy Logic Programs. International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 17(1): 85-135 (2009)
Minas Pertselakis, Andreas Stafylopatis: Dynamic modular fuzzy neural classifier with tree-based structure identification. Neurocomputing 71(4-6): 801-812 (2008)
Nikos Simou, Giorgos Stoilos, Vassilis Tzouvaras, Giorgos B. Stamou, Stefanos D. Kollias:
Storing and Querying Fuzzy Knowledge in the Semantic Web. URSW 2008
Vasileios Karakasis, Andreas Stafylopatis: Efficient Evolution of Accurate Classification Rules Using a Combination of Gene Expression Programming and Clonal Selection. IEEE Trans. Evolutionary Computation 12(6): 662-678 (2008)
Paraskevi K. Tzouveli, Phivos Mylonas, Stefanos D. Kollias: An intelligent e-learning system based on learner profiling and learning resources adaptation. Computers & Education 51(1): 224-238 (2008)
George Caridakis, Kostas Karpouzis, Stefanos D. Kollias: User and context adaptive neural networks for emotion recognition. Neurocomputing 71(13-15): 2553-2562 (2008)
Aris Lanaridis, Vasileios Karakasis, Andreas Stafylopatis: Clonal Selection-Based Neural Classifier. HIS 2008: 655-660
Nikos Simou, Thanos Athanasiadis, Giorgos Stoilos, Stefanos D. Kollias: Image indexing and retrieval using expressive fuzzy description logics. Signal, Image and Video Processing 2(4): 321-335 (2008)
Giorgos Stoilos, Giorgos B. Stamou, Jeff Z. Pan, Vassilis Tzouvaras, Ian Horrocks:
Reasoning with Very Expressive Fuzzy Description Logics. J. Artif. Intell. Res. 30: 273-320 (2007)
Christos Pateritsas, Andreas Stafylopatis: Memory-Based Classification with Dynamic Feature Selection Using Self-Organizing Maps for Pattern Evaluation. International Journal on Artificial Intelligence Tools 16(5): 875-899 (2007)
Spiros Ioannou, George Caridakis, Kostas Karpouzis, Stefanos D. Kollias: Robust Feature Detection for Facial Expression Recognition. EURASIP J. Image and Video Processing 2007 (2007)
Thanos Athanasiadis, Phivos Mylonas, Yannis S. Avrithis, Stefanos D. Kollias: Semantic Image Segmentation and Object Labeling. IEEE Trans. Circuits Syst. Video Techn. 17(3): 298-312 (2007)
Giorgos Stoilos, Nikos Simou, Giorgos B. Stamou, Stefanos D. Kollias:
Uncertainty and the Semantic Web. IEEE Intelligent Systems 21(5): 84-87 (2006)
Manolis Wallace, Yannis S. Avrithis, Stefanos D. Kollias: Computationally efficient sup-t transitive closure for sparse fuzzy binary relations. Fuzzy Sets and Systems 157(3): 341-372 (2006)
Christos Pateritsas, Andreas Stafylopatis: A Nearest Features Classifier Using a Self-organizing Map for Memory Base Evaluation. ICANN (2) 2006: 391-400
Jeff Z. Pan, Giorgos Stoilos, Giorgos B. Stamou, Vassilis Tzouvaras, Ian Horrocks:
f-SWRL: A Fuzzy Extension of SWRL. : 28-46 (2006)
Giorgos B. Stamou, Stefanos D. Kollias: Multimedia Semantics. Encyclopedia of Multimedia 2006
Minas Pertselakis, Christos Ferles, Kostas Tsiolis, Andreas Stafylopatis: Wireless Distributed Implementation of a Fuzzy Neural Classification System. International Journal on Artificial Intelligence Tools 14(4): 661-682 (2005)
Dimitrios S. Frossyniotis, Christos Pateritsas, Andreas Stafylopatis: A multi-clustering fusion scheme for data partitioning. Int. J. Neural Syst. 15(5): 391-401 (2005)
Spiros Ioannou, Amaryllis Raouzaiou, Vassilis Tzouvaras, Theofilos P. Mailis, Kostas Karpouzis, Stefanos D. Kollias: Emotion recognition through facial expression analysis based on a neurofuzzy network. Neural Networks 18(4): 423-435 (2005)
Manolis Wallace, Nicolas Tsapatsoulis, Stefanos D. Kollias: Intelligent initialization of resource allocating RBF networks. Neural Networks 18(2): 117-122 (2005)
Giorgos Stoilos, Giorgos B. Stamou, Stefanos D. Kollias:
A String Metric for Ontology Alignment. International Semantic Web Conference 2005: 624-637