Alexandros Chortaras

According to our database, Alexandros Chortaras authored at least 37 papers between 2005 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

The STIRData Approach to Interoperability of European Company High-Value Datasets.

Jakub Klímek, Alexandros Chortaras, Jakub Mísek, Jim J. Yang, Steinar Skagemo, Vassilis Tzouvaras

SN Comput. Sci., April, 2024

Searching for explanations of black-box classifiers in the space of semantic queries.

Jason Liartis, Edmund Dervakos, Orfeas Menis-Mastromichalakis, Alexandros Chortaras, Giorgos Stamou

Semantic Web, 2024

Combining Automatic Annotation with Human Validation for the Semantic Enrichment of Cultural Heritage Metadata.

Eirini Kaldeli, Alexandros Chortaras, Vassilis Lyberatos, Jason Liartis, Spyridon Kantarelis, Giorgos Stamou

Proceedings of the Computational Humanities Research Conference 2024, 2024

Rule-Based Explanations of Machine Learning Classifiers Using Knowledge Graphs.

Orfeas Menis-Mastromichalakis, Edmund Dervakos, Alexandros Chortaras, Giorgos Stamou

Proceedings of the AAAI 2024 Spring Symposium Series, 2024

2023

Semantic, Technical and Legal Interoperability of European Company Open Data in Practice: The STIRData Approach.

Jakub Klímek, Alexandros Chortaras, Jakub Mísek, Jim J. Yang, Steinar Skagemo, Vassilis Tzouvaras

Proceedings of the 12th International Conference on Data Science, 2023

2022

Computing Rule-Based Explanations of Machine Learning Classifiers using Knowledge Graphs.

Edmund Dervakos, Orfeas Menis-Mastromichalakis, Alexandros Chortaras, Giorgos Stamou

CoRR, 2022

2021

UCQ-Rewritings for disjunctive knowledge and queries with negated atoms.

Enrique Matos Alfonso, Alexandros Chortaras, Giorgos Stamou

Semantic Web, 2021

Semantic Queries Explaining Opaque Machine Learning Classifiers.

Jason Liartis, Edmund Dervakos, Orfeas Menis-Mastromichalakis, Alexandros Chortaras, Giorgos Stamou

Proceedings of the Workshop on Data meets Applied Ontologies in Explainable AI (DAO-XAI 2021) part of Bratislava Knowledge September (BAKS 2021), 2021

2020

Resolution-based rewriting for Horn-<i>SHIQ</i> ontologies.

Despoina Trivela, Giorgos Stoilos, Alexandros Chortaras, Giorgos Stamou

Knowl. Inf. Syst., 2020

Enriching Graph Representations of Text: Application to Medical Text Classification.

Alexios Mandalios, Alexandros Chortaras, Giorgos Stamou, Michalis Vazirgiannis

Proceedings of the Complex Networks & Their Applications IX, 2020

2019

Inside the Query Space of DL Knowledge Bases.

Alexandros Chortaras, Michalis Giazitzoglou, Giorgos Stamou

Proceedings of the 32nd International Workshop on Description Logics, 2019

2018

GEEK: Incremental Graph-based Entity Disambiguation.

Alexios Mandalios, Konstantinos Tzamaloukas, Alexandros Chortaras, Giorgos Stamou

Proceedings of the Workshop on Linked Data on the Web co-located with The Web Conference 2018, 2018

D2RML: Integrating Heterogeneous Data and Web Services into Custom RDF Graphs.

Alexandros Chortaras, Giorgos Stamou

Proceedings of the Workshop on Linked Data on the Web co-located with The Web Conference 2018, 2018

WITH: Human-Computer Collaboration for Data Annotation and Enrichment.

Alexandros Chortaras, Anna Christaki, Nasos Drosopoulos, Eirini Kaldeli, Maria Ralli, Anastasia Sofou, Arne Stabenau, Giorgos Stamou, Vassilis Tzouvaras

Proceedings of the Companion of the The Web Conference 2018 on The Web Conference 2018, 2018

Mapping Diverse Data to RDF in Practice.

Alexandros Chortaras, Giorgos Stamou

Proceedings of the Semantic Web - ISWC 2018, 2018

2017

Query Rewriting Under Ontology Change.

Eleni Tsalapati, Giorgos Stoilos, Alexandros Chortaras, Giorgos Stamou, George Koletsos

Comput. J., 2017

Ontological Query Answering over Semantic Data.

Giorgos B. Stamou, Alexandros Chortaras

Proceedings of the Reasoning Web. Semantic Interoperability on the Web, 2017

The WITH Platform: Where Culture Meets Creativity.

Michalis Giazitzoglou, Vassilis Tzouvaras, Alexandros Chortaras, Enrique Matos Alfonso, Nasos Drosopoulos

Proceedings of the Posters and Demos Track of the 13th International Conference on Semantic Systems, 2017

Enriching and Publishing Cultural Heritage as Linked Open Data.

Nikolaos Simou, Alexandros Chortaras, Giorgos Stamou, Stefanos D. Kollias

Proceedings of the Mixed Reality and Gamification for Cultural Heritage, 2017

2016

Reformulating Ontological Queries Using Materialised Rewritings.

Alexandros Chortaras, Bernardo Cuenca Grau, Giorgos B. Stamou, Giorgos Stoilos

Proceedings of the 6th International Conference on Web Intelligence, Mining and Semantics, 2016

A Semantic Approach to Film Content Analysis and Retrieval.

Alexandros Chortaras, Stefanos D. Kollias, Kostas Rapantzikos, Giorgos Stamou

Proceedings of the 9th Hellenic Conference on Artificial Intelligence, 2016

2015

Optimising resolution-based rewriting algorithms for OWL ontologies.

Despoina Trivela, Giorgos Stoilos, Alexandros Chortaras, Giorgos B. Stamou

J. Web Semant., 2015

Advancing the Terminological Classification of Semi-structured Documents.

Georgios Stratogiannis, Georgios Siolas, Georgios Stamou, Andreas Stafylopatis, Alexandros Chortaras, Athanasios Tagaris

Proceedings of the 27th IEEE International Conference on Tools with Artificial Intelligence, 2015

Query Rewriting in Horn-SHIQ.

Despoina Trivela, Giorgos Stoilos, Alexandros Chortaras, Giorgos B. Stamou

Proceedings of the 28th International Workshop on Description Logics, 2015

2014

Web Reasoning for Cultural Heritage.

Alexandros Chortaras, Nasos Drosopoulos, Ilianna Kollia, Nikolaos Simou

Proceedings of the Web Reasoning and Rule Systems - 8th International Conference, 2014

2013

Optimising Resolution-Based Rewriting Algorithms for DL Ontologies.

Despoina Trivela, Giorgos Stoilos, Alexandros Chortaras, Giorgos B. Stamou

Proceedings of the Informal Proceedings of the 26th International Workshop on Description Logics, Ulm, Germany, July 23, 2013

2011

Goal-oriented Query Rewriting for OWL 2 QL.

Alexandros Chortaras, Despoina Trivela, Giorgos B. Stamou

Proceedings of the 24th International Workshop on Description Logics (DL 2011), 2011

Optimized Query Rewriting for OWL 2 QL.

Alexandros Chortaras, Despoina Trivela, Giorgos B. Stamou

Proceedings of the Automated Deduction - CADE-23 - 23rd International Conference on Automated Deduction, Wroclaw, Poland, July 31, 2011

2009

Definition and Adaptation of Weighted Fuzzy Logic Programs.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis

Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2009

2008

Connectionist weighted fuzzy logic programs.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis

Neurocomputing, 2008

Adaptation of Connectionist Weighted Fuzzy Logic Programs with Kripke-Kleene Semantics.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis, Stefanos D. Kollias

Proceedings of the Artificial Neural Networks, 2008

2007

Top-Down Computation of the Semantics of Weighted Fuzzy Logic Programs.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis

Proceedings of the Web Reasoning and Rule Systems, First International Conference, 2007

Integrated Query Answering with Weighted Fuzzy Rules.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis

Proceedings of the Symbolic and Quantitative Approaches to Reasoning with Uncertainty, 2007

2006

A Connectionist Model for Weighted Fuzzy Programs.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis, Stefanos D. Kollias

Proceedings of the International Joint Conference on Neural Networks, 2006

Adaptation of Weighted Fuzzy Programs.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis

Proceedings of the Artificial Neural Networks, 2006

2005

Learning Ontology Alignments Using Recursive Neural Networks.

Alexandros Chortaras, Giorgos B. Stamou, Andreas Stafylopatis

Proceedings of the Artificial Neural Networks: Formal Models and Their Applications, 2005

A grid infrastructure for mixed bioinformatics data and text mining.

Moustafa Ghanem, Alexandros Chortaras, Yike Guo, Anthony Rowe, Jon Ratcliffe

Proceedings of the 2005 ACS / IEEE International Conference on Computer Systems and Applications (AICCSA 2005), 2005