selected publications
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academic article
- Semantic Web: Past, Present, and Future. Transactions on Graph Data and Knowledge. 2. 2024
- A computational framework based on the dynamic pipeline approach. Journal of Logical and Algebraic Methods in Programming. 139:100966. 2024
- CauseKG: A Framework Enhancing Causal Inference With Implicit Knowledge Deduced From Knowledge Graphs. IEEE Access. 12:61810-61827. 2024
- Empowering the SDM-RDFizer tool for scaling up to complex knowledge graph creation pipelines1. Semantic Web. 1-28. 2024
- InterpretME: A tool for interpretations of machine learning models over knowledge graphs. Semantic Web. 1-21. 2024
- PALADIN: A process-based constraint language for data validation. Information Fusion. 102557. 2024
- Trust, Accountability, and Autonomy in Knowledge Graph-Based AI for Self-Determination. Special Issue on Trends in Graph Data and Knowledge. Transactions on Graph Data and Knowledge (TGDK). 1:9:1-9:32. 2023
- A neuro-symbolic system over knowledge graphs for link prediction. Semantic Web. vol. Pre-press:1-25. 2023
- A neuro-symbolic system over knowledge graphs for link prediction. Semantic Web. vol. Pre-press:1-25. 2023
- Empowering machine learning models with contextual knowledge for enhancing the detection of eating disorders in social media posts. Semantic Web. 14:873-892. 2023
- Empowering machine learning models with contextual knowledge for enhancing the detection of eating disorders in social media posts. Semantic Web. 14:873-892. 2023
- Knowledge graphs for enhancing transparency in health data ecosystems1. Semantic Web. 14:943-976. 2023
- Knowledge graphs for enhancing transparency in health data ecosystems1. Semantic Web. 14:943-976. 2023
- Knowledge4COVID-19: A semantic-based approach for constructing a COVID-19 related knowledge graph from various sources and analyzing treatments’ toxicities. Web semantics: science, services and agents on the World Wide Web. 75. 2023
- Scaling up knowledge graph creation to large and heterogeneous data sources. Web semantics: science, services and agents on the World Wide Web. 75:100755. 2023
- An Artificial Intelligence-Based Tool for Data Analysis and Prognosis in Cancer Patients: Results from the Clarify Study.. Cancers. 14:4041. 2022
- Efficient semantic summary graphs for querying large knowledge graphs. International Journal of Information Management Data Insights. 2:100082. 2022
- Identifying the presence and severity of dementia by applying interpretable machine learning techniques on structured clinical records. BMC Medical Informatics and Decision Making. 22. 2022
- Improving Early Prognosis of Dementia Using Machine Learning Methods. ACM Transactions on Computing for Healthcare. 3:1-16. 2022
- Knowledge-Driven Data Ecosystems Toward Data Transparency. Journal of Data and Information Quality. 14:1-12. 2022
- Resorting to Context-Aware Background Knowledge for Unveiling Semantically Related Social Media Posts. IEEE Access. 10:115351-115371. 2022
- SKG4EOSC - Scholarly Knowledge Graphs for EOSC: Establishing a backbone of knowledge graphs for FAIR Scholarly Information in EOSC. Research Ideas and Outcomes. 8. 2022
- Traditional Machine Learning Models and Bidirectional Encoder Representations From Transformer (BERT)–Based Automatic Classification of Tweets About Eating Disorders: Algorithm Development and Validation Study. JMIR Medical Informatics. 10:e34492. 2022
- 1730P Cancer long survivor artificial intelligence follow-up (CLARIFY): Family history of cancer and lung cancer. Annals of Oncology. 32:S1198-S1199. 2021
- Calibrating Mini-Mental State Examination Scores to Predict Misdiagnosed Dementia Patients. Applied Sciences. 11:8055. 2021
- Creating and Capturing Artificial Emotions in Autonomous Robots and Software Agents. Journal of Web Engineering. 20:933-970. 2021
- Discover Relations in the Industry 4.0 Standards Via Unsupervised Learning on Knowledge Graph Embeddings. Journal of Data Intelligence. 2:336-347. 2021
- Enhancing virtual ontology based access over tabular data with Morph-CSV. Semantic Web. 12:869-902. 2021
- Enhancing virtual ontology based access over tabular data with Morph-CSV. Semantic Web. 12:869-902. 2021
- Compacting frequent star patterns in RDF graphs. Journal of Intelligent Information Systems. 55:561-585. 2020
- Bias in data‐driven artificial intelligence systems—An introductory survey. WIREs Data Mining and Knowledge Discovery. 10:e1356. 2020
- No one is perfect: Analysing the performance of question answering components over the DBpedia knowledge graph. Web semantics: science, services and agents on the World Wide Web. 65:100594. 2020
- IOTA: Interlinking of Heterogeneous Multilingual Open Fiscal DaTA. Expert Systems with Applications. 2019
- IOTA: Interlinking of Heterogeneous Multilingual Open Fiscal DaTA. Expert Systems with Applications. 2019
- Transforming Heterogeneous Data into Knowledge for Personalized Treatments—A Use Case. Datenbank-Spektrum. 19:95-106. 2019
- Evaluation of metadata representations in RDF stores. Semantic Web. 10:205-229. 2019
- Evaluation of metadata representations in RDF stores. Semantic Web. 10:205-229. 2019
- DESERT: A Continuous SPARQL Query Engine for On-Demand Query Answering. International journal of semantic computing. 12:373-397. 2018
- Experience: Open Fiscal Datasets, Common Issues, and Recommendations. Journal of Data and Information Quality. 9:1-10. 2018
- Federated Semantic Data Management (Dagstuhl Seminar 17262). Dagstuhl Reports. 7:135-167. 2017
- Use of Knowledge Graph in Rescoring the N-Best List in Automatic Speech Recognition 2017
- Comparing MapReduce and Pipeline Implementations for Counting Triangles. Electronic Proceedings in Theoretical Computer Science : EPTCS. 237:20-33. 2017
- Comparing MapReduce and Pipeline Implementations for Counting Triangles. Electronic Proceedings in Theoretical Computer Science : EPTCS. 237:20-33. 2017
- Decomposing federated queries in presence of replicated fragments. Web semantics: science, services and agents on the World Wide Web. 42:1-18. 2017
- Enhancing answer completeness of SPARQL queries via crowdsourcing. Web semantics: science, services and agents on the World Wide Web. 45:41-62. 2017
- LITMUS: An Open Extensible Framework for Benchmarking RDF Data Management Solutions 2016
- Mobile teleradiology system suitable for m-health services supporting content and semantic based image retrieval on a grid infrastructure.. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2016:5380-5383. 2016
- An automatic method for the enrichment of DICOM metadata using biomedical ontologies.. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2015:2551-4. 2015
- Determining similarity of scientific entities in annotation datasets. Database. 2015. 2015
- Determining similarity of scientific entities in annotation datasets. 2015
- An authority-flow based ranking approach to discover potential novel associations between Linked Data. Semantic Web. 5:23-46. 2014
- An authority-flow based ranking approach to discover potential novel associations between Linked Data. Semantic Web. 5:23-46. 2014
- Efficiently Producing the K Nearest Neighbors in the Skyline on Vertically Partitioned Tables. International Journal of Information Retrieval Research. 3:58-77. 2013
- A Non-Chronological Backtracking Unfolding Algorithm for Transactional Web Service Composition. Procedia Computer Science. 10:888-893. 2012
- Experiences of sampling-based approaches for estimating QoS parameters in the Web Service composition problem. International journal of web and grid services : IJWGS. 8:1. 2012
- Query evaluation and optimization in the semantic web. Theory and Practice of Logic Programming. 8:393-409. 2008
- PATH-BASED SYSTEMS TO GUIDE SCIENTISTS IN THE MAZE OF BIOLOGICAL DATA SOURCES. Journal of Bioinformatics and Computational Biology. 04:1069-1095. 2006
- Path-based systems to guide scientists in the maze of biological data sources.. Journal of Bioinformatics and Computational Biology. 4:1069-95. 2006
- BioFast. ACM SIGMOD Record. 33:72. 2004
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article
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book
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chapter
- Comparison Between Graph Databases and RDF Engines for Modelling Epidemiological Investigation of Nosocomial Infections. Proceedings of the 17th International Joint Conference on Biomedical Engineering Systems and Technologies - (Volume 2). 23-36. 2024
- Tracing the Impact of Bias in Link Prediction. SAC '24: Proceedings of the 39th ACM/SIGAPP Symposium on Applied Computing. 1626-1633. 2024
- Knowledge Graph Creation Challenge: Results for SDM-RDFizer. Proceedings of the 4th International Workshop on Knowledge Graph Construction co-located with 20th Extended Semantic Web Conference ESWC 2023. 2023
- Towards Certified Distributed Query Processing. ESWC 2023 Workshops and Tutorials Joint Proceedings. 2023
- Challenges for Healthcare Data Analytics Over Knowledge Graphs. Transactions on Large-Scale Data- and Knowledge-Centered Systems LIV. Springer, Cham. 89-118. 2023
- Correction to: The Semantic Web. The Semantic Web - 19th International Conference, ESWC 2022, Hersonissos, Crete, Greece, May 29 – June 2, 2022, Proceedings. C1-C1. 2023
- Mining Symbolic Rules to Explain Lung Cancer Treatments. The Semantic Web: ESWC 2023 Satellite Events. Springer, Cham. 69-74. 2023
- SAP-KG: Synonym Predicate Analyzer Across Multiple Knowledge Graphs. The Semantic Web: ESWC 2023 Satellite Events. Springer, Cham. 48-53. 2023
- SHACL-ACL: Access Control with SHACL. The Semantic Web: ESWC 2023 Satellite Events. Springer, Cham. 22-26. 2023
- SPaRKLE : Symbolic caPtuRing of knowledge for Knowledge graph enrichment with LEarning. K-CAP '23: Proceedings of the 12th Knowledge Capture Conference 2023. 44-52. 2023
- Toward a Solution for an Energy Knowledge Graph. Semantic Intelligence. Springer, Cham. 3-12. 2023
- Toward a Solution for an Energy Knowledge Graph. Semantic Intelligence. Springer, Cham. 3-12. 2023
- Trusting Decentralised Knowledge Graphs and Web Data at the Web Conference. WWW '23 Companion: Companion Proceedings of the ACM Web Conference 2023. 2023
- Unraveling the Hepatitis B Cure: A Hybrid AI Approach for Capturing Knowledge about the Immune System's Impact. K-CAP '23: Proceedings of the 12th Knowledge Capture Conference 2023. 241-249. 2023
- EABlock: a declarative entity alignment block for knowledge graph creation pipelines. SAC '22: Proceedings of the 37th ACM/SIGAPP Symposium on Applied Computing, April 2022 . ACM. 1908-1916. 2022
- Leibniz Data Manager – A Research Data Management System. The Semantic Web: ESWC 2022 Satellite Events. 73-77. 2022
- Datenschutzfragen in Big Data der Biomedizin. Künstliche Intelligenz – Recht und Praxis automatisierter und autonomer Systeme. Baden-Baden. 571-588. 2021
- Digital Transformation of Education Credential Processes and Life Cycles - A Structured Overview on Main Challenges and Research Questions. Proceedings of the 12th International Conference on Mobile, Hybrid, and On-line Learning (eLmL 2020). 54-57. 2021
- Analyzing a Knowledge Graph of Industry 4.0 Standards. WWW '21: Companion Proceedings of the Web Conference 2021. 16-25. 2021
- Capturing Knowledge about Drug-Drug Interactions to Enhance Treatment Effectiveness. K-CAP '21: Proceedings of the 11th Knowledge Capture Conference. 33-40. 2021
- Managing Knowledge in Energy Data Spaces. WWW '21: Companion Proceedings of the Web Conference 2021. 7-15. 2021
- Trav-SHACL: Efficiently Validating Networks of SHACL Constraints. WWW '21: Companion Proceedings of the Web Conference 2021. 3337-3348. 2021
- A Data-Driven Approach for Analyzing Healthcare Services Extracted from Clinical Records. 2020 IEEE 33rd International Symposium on Computer-Based Medical Systems (CBMS). 193-196. 2020
- Chapter 5 Federated Query Processing. Knowledge Graphs and Big Data Processing. Cham: Springer Nature. 73-86. 2020
- Chapter 8 Context-Based Entity Matching for Big Data. Knowledge Graphs and Big Data Processing. Cham: Springer Nature. 122-146. 2020
- Chapter 9 Survey on Big Data Applications. Knowledge Graphs and Big Data Processing. Cham, Switzerland: Springer Nature. 149-164. 2020
- A Knowledge Graph for Industry 4.0. The Semantic Web - 17th International Conference, ESWC 2020, Heraklion, Crete, Greece, May 31–June 4, 2020, Proceedings. 465-480. 2020
- Encoding Knowledge Graph Entity Aliases in Attentive Neural Network for Wikidata Entity Linking. Web Information Systems Engineering – WISE 2020. 328-342. 2020
- FunMap: Efficient Execution of Functional Mappings for Knowledge Graph Creation. The Semantic Web – ISWC 2020 19th International Semantic Web Conference, Athens, Greece, November 2–6, 2020, Proceedings, Part I. 276-293. 2020
- Interaction Network Analysis Using Semantic Similarity Based on Translation Embeddings. Semantic Systems. The Power of AI and Knowledge Graphs. 249-255. 2019
- Ranking Knowledge Graphs By Capturing Knowledge about Languages and Labels. K-CAP '19: Proceedings of the 10th International Conference on Knowledge Capture. ACM. 21-28. 2019
- MapSDI: A Scaled-Up Semantic Data Integration Framework for Knowledge Graph Creation. On the Move to Meaningful Internet Systems: OTM 2019 Conferences. Springer, Cham. 58-75. 2019
- What Are the Parameters that Affect the Construction of a Knowledge Graph?. On the Move to Meaningful Internet Systems: OTM 2019 Conferences. OTM 2019.. 695-713. 2019
- Semantic Representation of Scientific Publications. Digital Libraries for Open Knowledge 2019. Springer, Cham. 375-379. 2019
- iASiS: Towards Heterogeneous Big Data Analysis for Personalized Medicine. 2019 IEEE 32nd International Symposium on Computer-Based Medical Systems (CBMS). 106-111. 2019
- COMET: A Contextualized Molecule-Based Matching Technique. Database and Expert Systems Applications: 30th International Conference, DEXA 2019 Linz, Austria, August 26–29, 2019 Proceedings, Part I. Springer, Cham. 175-185. 2019
- Ontario: Federated Query Processing Against a Semantic Data Lake. Database and Expert Systems Applications: 30th International Conference, DEXA 2019 Linz, Austria, August 26–29, 2019 Proceedings, Part I. Springer Nature. 379-395. 2019
- Old is Gold: Linguistic Driven Approach for Entity and Relation Linking of Short Text. Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers). Association for Computational Linguistics. 2336-2346. 2019
- Linked Data on the Web and its Relationship with Distributed Ledgers (LDOW/LDDL). WWW '19 Companion Proceedings of The 2019 World Wide Web Conference . 823-839. 2019
- Summarizing Entity Temporal Evolution in Knowledge Graphs. WWW '19 Companion Proceedings of The 2019 World Wide Web Conference . 961-965. 2019
- Semantic Data Integration of Big Biomedical Data for Supporting Personalised Medicine. Current Trends in Semantic Web Technologies: Theory and Practice. Cham: Springer Nature. 25-56. 2019
- PURE: A Privacy Aware Rule-Based Framework over Knowledge Graphs. Database and Expert Systems Applications: 30th International Conference, DEXA 2019 Linz, Austria, August 26–29, 2019 Proceedings, Part I. Springer, Cham. 205-214. 2019
- Semantic Data Integration Techniques for Transforming Big Biomedical Data into Actionable Knowledge. 2019 IEEE 32nd International Symposium on Computer-Based Medical Systems (CBMS). IEEE. 563-566. 2019
- A Knowledge-Driven Pipeline for Transforming Big Data into Actionable Knowledge. Data Integration in the Life Sciences. 44-49. 2018
- Data Integration for Supporting Biomedical Knowledge Graph Creation at Large-Scale. Data Integration in the Life Sciences. Cham: Springer, Cham. 91-96. 2018
- FedSDM: Semantic Data Manager for Federations of RDF Datasets. Data Integration in the Life Sciences. 85-90. 2018
- Knowledge Graphs for Semantically Integrating Cyber-Physical Systems. Database and Expert Systems Applications 29th International Conference, DEXA 2018, Regensburg, Germany, September 3–6, 2018, Proceedings, Part I. 184-199. 2018
- BOUNCER: Privacy-Aware Query Processing over Federations of RDF Datasets. Database and Expert Systems Applications 29th International Conference, DEXA 2018, Regensburg, Germany, September 3–6, 2018, Proceedings, Part I. 69-84. 2018
- GARUM: A Semantic Similarity Measure Based on Machine Learning and Entity Characteristics. Database and Expert Systems Applications 29th International Conference, DEXA 2018, Regensburg, Germany, September 3–6, 2018, Proceedings, Part I. 169-183. 2018
- OpenBudgets.eu: A Platform for Semantically Representing and Analyzing Open Fiscal Data. Web Engineering 18th International Conference, ICWE 2018, Cáceres, Spain, June 5-8, 2018, Proceedings. 433-447. 2018
- Querying Interlinked Data by Bridging RDF Molecule Templates. Transactions on Large-Scale Data- and Knowledge-Centered Systems XXXIX. 1-42. 2018
- Synthesizing Knowledge Graphs from Web Sources with the MINTE+ Framework. The Semantic Web – ISWC 2018 17th International Semantic Web Conference, Monterey, CA, USA, October 8–12, 2018, Proceedings, Part II. 359-375. 2018
- Ulysses: An Intelligent Client for Replicated Triple Pattern Fragments. The Semantic Web: ESWC 2018 Satellite Events ESWC 2018 Satellite Events, Heraklion, Crete, Greece, June 3-7, 2018, Revised Selected Papers. 182-186. 2018
- Unveiling Scholarly Communities over Knowledge Graphs. Digital Libraries for Open Knowledge. 103-115. 2018
- Diefficiency Metrics: Measuring the Continuous Efficiency of Query Processing Approaches. The Semantic Web – ISWC 2017 16th International Semantic Web Conference, Vienna, Austria, October 21-25, 2017, Proceedings, Part II. 3-19. 2017
- Towards a Multi-way Similarity Join Operator. Communications in Computer and Information Science. 267-274. 2017
- Challenges for Semantically Driven Collaborative Spaces. Semantic Web Collaborative Spaces. 3-9. 2016
- Considering Semantics on the Discovery of Relations in Knowledge Graphs. Knowledge Engineering and Knowledge Management 20th International Conference, EKAW 2016, Bologna, Italy, November 19-23, 2016, Proceedings. 666-680. 2016
- On the Selection of SPARQL Endpoints to Efficiently Execute Federated SPARQL Queries. Transactions on Large-Scale Data- and Knowledge-Centered Systems XXV. 109-149. 2016
- AnnEvol: An Evolutionary Framework to Description Ontology-Based Annotations. Data Integration in the Life Sciences 11th International Conference, DILS 2015, Los Angeles, CA, USA, July 9-10, 2015, Proceedings. 87-103. 2015
- Combining Multiple Knowledge Sources: A Case Study of Drug Induced Liver Injury. Data Integration in the Life Sciences 11th International Conference, DILS 2015, Los Angeles, CA, USA, July 9-10, 2015, Proceedings. 3-12. 2015
- D-FOPA: A Dynamic Final Object Pruning Algorithm to Efficiently Produce Skyline Points Over Data Streams. Database and Expert Systems Applications 26th International Conference, DEXA 2015, Valencia, Spain, September 1-4, 2015, Proceedings, Part II. 117-133. 2015
- DEFENDER: A DEcomposer for quEries agaiNst feDERations of Endpoints. The Semantic Web: ESWC 2012 Satellite Events ESWC 2012 Satellite Events, Heraklion, Crete, Greece, May 27-31, 2012. Revised Selected Papers. 480-484. 2015
- Federated SPARQL Queries Processing with Replicated Fragments. The Semantic Web - ISWC 2015. 36-51. 2015
- Networks of Linked Data Eddies: An Adaptive Web Query Processing Engine for RDF Data. The Semantic Web - ISWC 2015. 111-127. 2015
- OnSim: A Similarity Measure for Determining Relatedness Between Ontology Terms. Data Integration in the Life Sciences 11th International Conference, DILS 2015, Los Angeles, CA, USA, July 9-10, 2015, Proceedings. 70-86. 2015
- Analyzing Linked Data Quality with LiQuate. The Semantic Web: ESWC 2014 Satellite Events ESWC 2014 Satellite Events, Anissaras, Crete, Greece, May 25-29, 2014, Revised Selected Papers. 488-493. 2014
- Drug-Target Interaction Prediction Using Semantic Similarity and Edge Partitioning. The Semantic Web – ISWC 2014. 131-146. 2014
- Exploiting Semantics from Ontologies and Shared Annotations to Partition Linked Data. Data Integration in the Life Sciences 10th International Conference, DILS 2014, Lisbon, Portugal, July 17-18, 2014. Proceedings. 120-127. 2014
- Graphium Chrysalis: Exploiting Graph Database Engines to Analyze RDF Graphs. The Semantic Web: ESWC 2014 Satellite Events ESWC 2014 Satellite Events, Anissaras, Crete, Greece, May 25-29, 2014, Revised Selected Papers. 326-331. 2014
- SemLAV: Local-As-View Mediation for SPARQL Queries. 33-58. 2014
- SemLAV: Querying Deep Web and Linked Open Data with SPARQL. The Semantic Web: ESWC 2014 Satellite Events ESWC 2014 Satellite Events, Anissaras, Crete, Greece, May 25-29, 2014, Revised Selected Papers. 332-337. 2014
- Traversing the Linking Open Data Cloud to Create News from Tweets. On the Move to Meaningful Internet Systems: OTM 2014 Workshops. 479-488. 2014
- Analyzing Linked Data Quality with LiQuate. On the Move to Meaningful Internet Systems: OTM 2013 Workshops Confederated International Workshops: OTM Academy, OTM Industry Case Studies Program, ACM, EI2N, ISDE, META4eS, ORM, SeDeS, SINCOM, SMS and SOMOCO 2013, Graz, Austria, September 9 - 13, 2013, Proceedings. 629-638. 2013
- FOPA: A Final Object Pruning Algorithm to Efficiently Produce Skyline Points. Database and Expert Systems Applications 24th International Conference, DEXA 2013, Prague, Czech Republic, August 26-29, 2013. Proceedings, Part II. 334-348. 2013
- FRAGOLA: Fabulous RAnking of GastrOnomy LocAtions. On the Move to Meaningful Internet Systems: OTM 2013 Workshops Confederated International Workshops: OTM Academy, OTM Industry Case Studies Program, ACM, EI2N, ISDE, META4eS, ORM, SeDeS, SINCOM, SMS and SOMOCO 2013, Graz, Austria, September 9 - 13, 2013, Proceedings. 408-413. 2013
- GUN: An Efficient Execution Strategy for Querying the Web of Data. Database and Expert Systems Applications 24th International Conference, DEXA 2013, Prague, Czech Republic, August 26-29, 2013. Proceedings, Part I. 180-194. 2013
- LiQuate-Estimating the Quality of Links in the Linking Open Data Cloud. Resource Discovery. 56-82. 2013
- Medical Image Rendering and Description Driven by Semantic Annotations. Resource Discovery. 123-149. 2013
- On the Efficiency of Querying and Storing RDF Documents. Advances in Data Mining and Database Management. 354-385. 2012
- A Transactional-QoS Driven Approach for Web Service Composition. Resource Discovery. 23-42. 2012
- Benchmarking Federated SPARQL Query Engines: Are Existing Testbeds Enough?. The Semantic Web – ISWC 2012. 313-324. 2012
- Challenges of Quality-Driven Resource Discovery. Resource Discovery. 181-189. 2012
- Efficiently Producing the K Nearest Neighbors in the Skyline for Multidimensional Datasets. On the Move to Meaningful Internet Systems: OTM 2012 Workshops. 673-676. 2012
- Finding Cross Genome Patterns in Annotation Graphs. Data Integration in the Life Sciences 8th International Conference, DILS 2012, College Park, MD, USA, June 28-29, 2012, Proceedings. 21-36. 2012
- Ranking and Clustering Techniques to Support an Efficient E-Democracy. On the Move to Meaningful Internet Systems: OTM 2012 Workshops. 298-301. 2012
- ANAPSID: An Adaptive Query Processing Engine for SPARQL Endpoints. The Semantic Web – ISWC 2011. 18-34. 2011
- CAREY: ClimAtological ContRol of EmergencY Regions. On the Move to Meaningful Internet Systems: OTM 2011 Workshops. 494-503. 2011
- To Cache or Not To Cache: The Effects of Warming Cache in Complex SPARQL Queries. On the Move to Meaningful Internet Systems: OTM 2011. 716-733. 2011
- An Expressive and Efficient Solution to the Service Selection Problem. The Semantic Web - ISWC 2010 9th International Semantic Web Conference, ISWC 2010, Shanghai, China, November 7-11, 2010, Revised Selected Papers, Part I. 386-401. 2010
- BioNav: An Ontology-Based Framework to Discover Semantic Links in the Cloud of Linked Data. The Semantic Web: Research and Applications 7th European Semantic Web Conference, ESWC 2010, Heraklion, Crete, Greece, May 30 - June 3, 2010, Proceedings, Part II. 441-445. 2010
- Efficiently Joining Group Patterns in SPARQL Queries. The Semantic Web: Research and Applications 7th Extended Semantic Web Conference, ESWC 2010, Heraklion, Crete, Greece, May 30 - June 2, 2010, Proceedings, Part I. 228-242. 2010
- Efficiently Selecting the Best Web Services. Resource Discovery. 120-139. 2010
- Expressing and Managing Reactivity in the Semantic Web. On the Move to Meaningful Internet Systems, OTM 2010. 1018-1035. 2010
- Customized and Optimized Service Selection with ProtocolDB. Data Management in Grid and Peer-to-Peer Systems Second International Conference, Globe 2009 Linz, Austria, September 1-2, 2009 Proceedings. 112-123. 2009
- Reaching the Top of the Skyline: An Efficient Indexed Algorithm for Top-k Skyline Queries. Database and Expert Systems Applications 20th International Conference, DEXA 2009, Linz, Austria, August 31 - September 4, 2009, Proceedings. 471-485. 2009
- A Deductive Approach for Resource Interoperability and Well-Defined Workflows. On the Move to Meaningful Internet Systems: OTM 2008 Workshops. 998-1009. 2008
- Magic Rewritings for Efficiently Processing Reactivity on Web Ontologies. On the Move to Meaningful Internet Systems: OTM 2008. 1338-1354. 2008
- Deductive Web Services: An Ontology-Driven Approach for Service Interoperability in Life Science. On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops. 1338-1347. 2007
- BioNavigation: Selecting Optimum Paths Through Biological Resources to Evaluate Ontological Navigational Queries. Data Integration in the Life Sciences Second International Workshop, DILS 2005, San Diego, CA, USA, July 20-22, 2005, Proceedings. 275-283. 2005
- Preferred Skyline: A Hybrid Approach Between SQLf and Skyline. Database and Expert Systems Applications 16th International Conference, DEXA 2005, Copenhagen, Denmark, August 22-26, 2005, Proceedings. 375-384. 2005
- Top-k Skyline: A Unified Approach. On the Move to Meaningful Internet Systems 2005: OTM 2005 Workshops. 790-799. 2005
- Efficient Techniques to Explore and Rank Paths in Life Science Data Sources. Data Integration in the Life Sciences First International Workshop, DILS 2004, Leipzig, Germany, March 25-26, 2004, proceedings. 187-202. 2004
- Source selection and ranking in the websemantics architecture using quality of data metadata. Advances in Computers. 87-118. 2002
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conference paper
- Enhancing Interpretability of Machine Learning Models over Knowledge Graphs. Proceedings of the Posters and Demo Track of the 19th International Conference on Semantic Systems co-located with 19th International Conference on Semantic Systems (SEMANTiCS 2023). 2023
- Optimizing Federated Queries Based on the Physical Design of a Data Lake. EDBT/ICDT 2020 Workshops: Proceedings of the Workshops of the EDBT/ICDT 2020 Joint Conference, Copenhagen, Denmark, March 30, 2020. 2020
- Falcon 2.0 2020
- SDM-RDFizer 2020
- FALCON: An Entity and Relation Linking Framework over DBpedia. Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations, Industry, and Outrageous Ideas) co-located with 18th International Semantic Web Conference (ISWC 2019). 265-268. 2019
- HARE: An Engine for Enhancing Answer Completeness of SPARQL Queries via Crowdsourcing 2018
- Synthesizing a Knowledge Graph of Data Scientist Job Offers with MINTE+. Proceedings of the ISWC 2018 Posters & Demonstrations, Industry and Blue Sky Ideas Tracks co-located with 17th International Semantic Web Conference (ISWC 2018), Monterey, USA, October 8th - to - 12th, 2018.. 2018
- Classifying Data Heterogeneity within Budget and Spending Open Data 2018
- Dynamic Composition of Question Answering Pipelines with FRANKENSTEIN 2018
- EffTE: a dependency-aware approach for test-driven ontology development 2018
- Intelligent Clients for Replicated Triple Pattern Fragments. The Semantic Web. 400-414. 2018
- SAANSET: Semi-Automated Acquisition of Scholarly Metadata Using OpenResearch.org Platform 2018
- Seamless integration of cyber-physical systems in knowledge graphs 2018
- Semantic Enrichment of IoT Stream Data On-demand 2018
- Shipping Knowledge Graph Management Capabilities to Data Providers and Consumers 2018
- Towards a Knowledge Graph for Science 2018
- Why Reinvent the Wheel: Let's Build Question Answering Systems Together 2018
- Capturing Knowledge in Semantically-typed Relational Patterns to Enhance Relation Linking. K-CAP 2017 : Proceedings of the Knowledge Capture Conference. Article No. 31. 2017
- Efficient Processing of Semantically Represented Sensor Data. Proceedings of the 13th International Conference on Web Information Systems and Technologies, WEBIST 2017, Porto, Portugal, April 25-27, 2017. 252-259. 2017
- Enterprise Knowledge Graphs: A Semantic Approach for Knowledge Management in the Next Generation of Enterprise Information Systems. ICEIS 2017 - Proceedings of the 19th International Conference on Enterprise Information Systems, Volume 2, Porto, Portugal, April 26-29, 2017. 88-98. 2017
- Integration of Scholarly Communication Metadata Using Knowledge Graphs. Research and Advanced Technology for Digital Libraries : 21st International Conference on Theory and Practice of Digital Libraries, TPDL 2017, Thessaloniki, Greece, September 18-21, 2017, Proceedings. 328-341. 2017
- Large-scale storage and query processing for semantic sensor data. Proceedings of the 7th International Conference on Web Intelligence, Mining and Semantics, WIMS 2017, Amantea, Italy, June 19-22, 2017. 8:1-8:12. 2017
- MINTE: semantically integrating RDF graphs. Proceedings of the 7th International Conference on Web Intelligence, Mining and Semantics, WIMS 2017, Amantea, Italy, June 19-22, 2017. 22:1-22:11. 2017
- MULDER: Querying the Linked Data Web by Bridging RDF Molecule Templates. Database and Expert Systems Applications - 28th International Conference, DEXA 2017, Lyon, France, August 28-31, 2017, Proceedings, Part I. 3-18. 2017
- MateTee: A Semantic Similarity Metric Based on Translation Embeddings for Knowledge Graphs. Web Engineering - 17th International Conference, ICWE 2017, Rome, Italy, June 5-8, 2017, Proceedings. 246-263. 2017
- QAestro - Semantic-Based Composition of Question Answering Pipelines. Database and Expert Systems Applications - 28th International Conference, DEXA 2017, Lyon, France, August 28-31, 2017, Proceedings, Part I. 19-34. 2017
- SJoin: A Semantic Join Operator to Integrate Heterogeneous RDF Graphs. Database and Expert Systems Applications - 28th International Conference, DEXA 2017, Lyon, France, August 28-31, 2017, Proceedings, Part I. 206-221. 2017
- SMJoin: A Multi-way Join Operator for SPARQL Queries. Semantics2017: Proceedings of the 13th International Conference on Semantic Systems. 104-111. 2017
- The BigDataEurope Platform - Supporting the Variety Dimension of Big Data. Web Engineering - 17th International Conference, ICWE 2017, Rome, Italy, June 5-8, 2017, Proceedings. 41-59. 2017
- Towards an Integrated Graph Algebra for Graph Pattern Matching with Gremlin. Database and Expert Systems Applications - 28th International Conference, DEXA 2017, Lyon, France, August 28-31, 2017, Proceedings, Part I. 81-91. 2017
- A big data architecture for managing oceans of data and maritime applications 2017
- Maritime data technology landscape and value chain exploiting oceans of data for maritime applications 2017
- Semantic Data Integration for Knowledge Graph Construction at Query Time. 11th IEEE International Conference on Semantic Computing, ICSC 2017, San Diego, CA, USA, January 30 - February 1, 2017. 109-116. 2017
- The industry 4.0 standards landscape from a semantic integration perspective 2017
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- Co-evolution of RDF Datasets. Web Engineering - 16th International Conference, ICWE 2016, Lugano, Switzerland, June 6-9, 2016. Proceedings. 225-243. 2016
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- FuhSen: A Federated Hybrid Search Engine for Building a Knowledge Graph On-Demand (Short Paper). On the Move to Meaningful Internet Systems: OTM 2016 Conferences - Confederated International Conferences: CoopIS, C&TC, and ODBASE 2016, Rhodes, Greece, October 24-28, 2016, Proceedings. 752-761. 2016
- Proactive Prevention of False-Positive Conflicts in Distributed Ontology Development. Proceedings of the 8th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2016) - Volume 2: KEOD, Porto - Portugal, November 9 - 11, 2016.. 43-51. 2016
- Towards Semantification of Big Data Technology. Big Data Analytics and Knowledge Discovery - 18th International Conference, DaWaK 2016, Porto, Portugal, September 6-8, 2016, Proceedings. 376-390. 2016
- GADES 2016
- Mobile teleradiology system suitable for m-health services supporting content and semantic based image retrieval on a grid infrastructure 2016
- An automatic method for the enrichment of DICOM metadata using biomedical ontologies 2015
- Exploiting information content and semantics to accurately compute similarity of GO-based annotated entities 2015
- HARE: A Hybrid SPARQL Engine to Enhance Query Answers via Crowdsourcing 2015
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- Query Rewriting in the Semantic Web7 2006
- Ranking target objects of navigational queries 2006
- Semantic Model to Integrate Biological Resources 2006
- BioNavigation: Using Ontologies to Express Meaningful Navigational Queries Over Biological Resources 2005
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conference poster
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editorial article
- Managing the evolution and preservation of the data web. Web semantics: science, services and agents on the World Wide Web. 54:1-3. 2019
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monograph
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preprint
- Dragoman: Efficiently Evaluating Declarative Mapping Languages over Frameworks for Knowledge Graph Creation 2022
- Analyzing a Knowledge Graph of Industry4.0 Standards 2021
- Knowledge-driven Data Ecosystems Towards Data Transparency 2021
- Managing Knowledge in Energy Data Spaces 2021
- Reuse of Semantic Models for Emerging Smart Grids Applications 2021
- Trav-SHACL: Efficiently Validating Networks of SHACL Constraints 2021
- FunMap: Efficient Execution of Functional Mappings for Knowledge Graph Creation 2020
- SDM-RDFizer: An RML Interpreter for the Efficient Creation of RDF Knowledge Graphs 2020
- Unveiling Relations in the Industry 4.0 Standards Landscape based on Knowledge Graph Embeddings 2020
- Enhancing OBDA Query Translation over Tabular Data with Morph-CSV 2020
- Compact Representations for Efficient Storage of Semantic Sensor Data 2020
- Context-aware Entity Linking with Attentive Neural Networks on Wikidata Knowledge Graph 2019
- Towards an Integrated Graph Algebra for Graph Pattern Matching with Gremlin (Extended Version) 2019
- Towards Optimisation of Collaborative Question Answering over Knowledge Graphs 2019
- Using The Force to Solve Linked Data Incompleteness. Linked Open Data Validity : A Technical Report from ISWS 2018. 98-117. 2019
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working paper
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