Research Director at CNR-ISTI
Papers Scientific Activities Contact Teaching Software Invited Presentations

Topics of Interests:

My Web Page at CNR: www.cnr.it/people/umberto.straccia

My CV: Umberto Straccia's Curriculum Vitae et Studiorum


My Google Scholar : scholar.google.com
My Scopus         : www.scopus.com
My ORCID          : orcid.org
My DBLP           : dblp.org

Book:

Foundations of Fuzzy Logic and Semantic Web Languages

Chapman & Hall/CRC Studies in Informatics Series.

The book is a rigorous account of  the mathematical methods and tools about the Foundations of Representing Fuzzy Information and Reasoning with it within Semantic Web Languages. The development covers the three main streams of Semantic Web languages: namely, triple languages RDF & RDFS, Conceptual languages  OWL, OWL 2 and their Profiles (OWL EL, OWL QL and OWL RL), and rule-based languages such as SWRL and RIF

Book URL. Free Preview Free PDF

• The FuzzyDL System: The Fuzzy Description Logic Reasoner fuzzyDL (paper)(Java source)(Python PyPI source, Python source code, paper)
• Fuzzy OWL 2: See how to write fuzzy ontologies in OWL 2
• FuzzyDL-Learner A tool to learn class descriptions from OWL 2 ontologies
• MILP-SAT-GNN Yet Another Neural SAT solver (paper)
• The SoftFacts System: Ontology Mediated Access to Databases. It supports top-k retrieval (paper).
• The fuzzyRDF System: Fuzzy RDFS reasoner. It supports top-k retrieval (paper).
• The DL-Media System: An Ontology Mediated Multimedia Information Retrieval System (paper)
• oMap: A probabilisitc Ontology Alignemt Tool (paper)

Keynotes & Tutorials:

• Straccia, Umberto. PN-OWL: A Two Stage Algorithm to Learn Fuzzy Concept Inclusions from OWL Ontologies. Seminar at University of Cape Town (UCT), South Africa,  October 2024. Slides
  
• Straccia, Umberto and Casini, Giovanni. Non-Classical Knowledge Representation and Reasoning. Italian National PhD Course on AI, 2024. Slides

• Straccia, Umberto. Query-answering from linked data. Tutorial Lecture at the Autumn School IA2 on ARTIFICIAL INTELLIGENCE: MANAGING IMPERFECT AND HETEROGENEOUS INFORMATION AND DATA, Le Lazaret, Sète, France, October 30 - November 03, 2023. Slides
  
• Straccia, Umberto. Fuzzy & Annotated Semantic Web Languages. Tutorial Lecture at the 2020 Southern African Conference for Artificial Intelligence Research (SACAIR 2020), South Africa, 22-26 February,  2021. Slides
  
• Straccia, Umberto. Fuzzy & Annotated Semantic Web Languages. Invited Talk at the 2018 Artificial Intelligence International Conference (A2IC 2018), Barcelona, Spain, 1-3 November, 2018. Paper Slides Presentation on Youtube
• Straccia, Umberto. Fuzzy Semantic Web Languages and Beyond. Invited Talk at the 30th International Conference on Industrial, Engineering, Other Applications of Applied Intelligent Systems (IEA/AIE 2017), Arras, France, June 27-30, 2017. Pdf Slides
• Umberto Straccia and Fernando Bobillo. From Fuzzy to Annotated Semantic Web Languages. Tutorial Lecture at the Reasoning Web 2016 Summer School. Aberdeen, UK, 5 - 9 September, 2016. Pdf Slides
• Umberto Straccia. All About Fuzzy Description Logics and Applications. Tutorial Lecture at the Reasoning Web 2015 Summer School. Berlin, Germany 31 July - 4 August, 2015. Pdf Slides
• Straccia, Umberto. Foundations of Fuzzy Logic and Semantic Web Langugages. Invited Talk at the 9th Italian Convention on Computational Logic (CILC-12), Rome, Italy, June 6-7, 2012. Pdf
• Umberto Straccia. Fuzzy Logic, Annotation Domains and Semantic Web Languages. Invited Talk at the Fifth International Conference on Scalable Uncertainty Management, SUM-2011, 2011. Paper. Slides
• Umberto Straccia. Managing Uncertainty and Vagueness in Description Logics, Logic Programs and Description Logic Programs. Tutorial Lecture at the Reasoning Web 2008 Summer School. Venice, Italy 7th to 11th September, 2008. Paper. Slides
• Thomas Lukasiewicz and Umberto Straccia. Managing Uncertainty and Vagueness in Semantic Web Languages. Tutorial Lecture at the Twenty-Second Conference on Artificial Intelligence (AAAI-07), 2007. July 22-23, 2007, Vancouver, British Columbia, Canada. Pdf
• Thomas Lukasiewicz and Umberto Straccia. Managing Uncertainty and Vagueness in Semantic Web Languages. Tutorial Lecture at the 4th European Semantic Web Conference (ESWC-07), 2007. June 3-7, 2007, Insbruck, Austria. Pdf

Current Professional Activities:


• Editorial Board member of
  • Fuzzy Sets and Systems (Area Editor) (Elsevier)
  • International Journal On Semantic Web and Information Systems
  • International Journal of Hybrid Information Technology (SERSC)
  • Advances in Artificial Intelligence (Hindawi Publishing Corporation)
  • Open Journal on Semantic Web (Research Publishing Online)
  • International Journal of Knowledge Science and Engineering (Inderscience Publishers)
  
  
• Association Member of
• CLAIRE (Member of CLAIRE: Confederation of Laboratories for Artificial Intelligence Research in Europe, 2018-)
• CINI (Member of CINI: National Laboratory of Artificial Intelligence and Intelligent Systems, Node CNR-DIITET, 2018-)
• RR (Member of the Web Reasoning and Rule Systems (RR) Associations, 2012-)
• EUSFLAT (Member of the European Society for Fuzzy Logic and Technology. 2011-)
• MathFuzzLog (Member of the Working Group on Mathematical Fuzzy Logic, MathFuzzLog. 2007-)

• Conference Activities (PC memberships and Chairing) From 2025 onward (see all activities)
• IJCAI 2026 (The International Joint Conference on Artificial Intelligence, Survey Track)
  
• KR 2026 (International Conference on the Principles of Knowledge Representation and Reasoning)
  
• TheWebConf 2026 (The Web Conference -formerly known as WWW Conference, Semantics and Knowledge Track)
  
• ESWC 2026 (The Extended Semantic Web Conference)
• UAI 2026 (The Conference on Uncertainty in Artificial Intelligence)
• RuleML+RR 2026 (The International Joint Conference on Rules and Reasoning)
• SUM 2026 (17th International Conference on Scalable Uncertainty Management)
• DL 2026 (39th International Workshop on Description Logics)
• IJCAI 2025 (The International Joint Conference on Artificial Intelligence, Survey Track)
• KR 2025 (22nd International Conference on the Principles of Knowledge Representation and Reasoning)
• ECAI 2025 (Senior Program Committee Member, The European Conference on Artificial Intelligence)
• ESWC 2025 (The Extended Semantic Web Conference)
• RuleML+RR 2025 (The International Joint Conference on Rules and Reasoning)
• UAI 2025 (The Conference on Uncertainty in Artificial Intelligence)
• FuzzIEEE 2025 (The IEEE International Conference on Fuzzy Systems)
• EUSFLAT 2025 (The Conference of the European Society for Fuzzy Logic and Technology)
• DL 2025 (38th International Workshop on Description Logics)
• JELIA 2025 (19th European Conference on Logics in Artificial Intelligence)
• IFSA-NAFIPS 2025 (World Congress of the International Fuzzy Systems  Association and Annual Conference of the North American Fuzzy Information  Processing Society
 

• Other Activities
• Member of the Italian National Agency for the Evaluation of Universities and Research institutes (ANVUR), Committee GEV01 (Computer Science), Research Quality Assessment (VQR) of years 2015-2019. June 2020 - June 2022.