Selected publications

Publicaciones seleccionadas

Fuzzy ontology overview

Revisión sobre ontologías difusas

U. Straccia, F. Bobillo. From Fuzzy to Annotated Semantic Web Languages. Tutorial Lectures of the 12th Reasoning Web Summer School (RW 2016). Lecture Notes in Computer Science 9885, Springer, pp. 203-240, 2017.
F. Bobillo, M. Cerami, F. Esteva, Á García-Cerdaña, R. Peñaloza, U. Straccia. Fuzzy Description Logics. Chapter XVI of Handbook of Mathematical Fuzzy Logic volume 3. Volume 58 of Studies in Logic, Mathematical Logic and Foundations. College Publications, pp. 1105-1181, 2015.
F. Bobillo. Managing Vagueness in Ontologies. PhD Dissertation, University of Granada, Spain, December 2008.

Fuzzy ontology languages and reasoners

Lenguajes y razonadores para ontologías difusas

I. Huitzil, U. Straccia, C. Bobed, E. Mena, F. Bobillo. The Serializable and Incremental Semantic Reasoner fuzzyDL. Proceedings of the 29th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2020). IEEE Press, Glasgow (United Kingdom), July 2020.
F. Bobillo, U. Straccia. The Fuzzy Ontology Reasoner FuzzyDL. Knowledge-Based Systems 95:12–34, 2016.
F. Bobillo, M. Delgado, J. Gómez-Romero. DeLorean: A Reasoner for Fuzzy OWL 2. Expert Systems with Applications 39(1):258-272, 2012.
F. Bobillo, U. Straccia. Fuzzy Ontology Representation using OWL 2. International Journal of Approximate Reasoning 52(7):1073-1094, 2011.

Fuzzy ontology reasoning: crisp representations

Razonamiento con ontologías difusas: representaciones crisp

F. Bobillo, M. Delgado, J. C. Sánchez-Sánchez. Parallel Algorithms for Fuzzy Ontology Reasoning. IEEE Transactions on Fuzzy Systems 21(4):775-781, 2013.
F. Bobillo, M. Delgado, J. Gómez-Romero, U. Straccia. Joining Gödel and Zadeh Fuzzy Logics in Fuzzy Description Logics. International Journal of Uncertainty, Fuzziness and Knowledge-based Systems 20(4):475-508, 2012.
F. Bobillo, U. Straccia. Reasoning with the Finitely Many-valued Łukasiewicz Fuzzy Description Logic SROIQ. Information Sciences 181(4):758-778, 2011.
F. Bobillo, M. Delgado, J. Gómez-Romero, U. Straccia. Fuzzy Description Logics under Gödel Semantics. International Journal of Approximate Reasoning 50(3):494-514, 2009.
F. Bobillo, M. Delgado, J. Gómez-Romero. Crisp Representations and Reasoning for Fuzzy Ontologies. International Journal of Uncertainty, Fuzziness and Knowledge-based Systems 17(4):501-530, 2009.

Fuzzy ontology reasoning: tableaux with optimization algorithms

Razonamiento con ontologías difusas: algoritmos tableaux con optimización

F. Bobillo, U. Straccia. Reasoning within Fuzzy OWL 2 EL Revisited. Fuzzy Sets and Systems 351:1–40, 2018.
F. Bobillo, U. Straccia. Generalizing Type-2 Fuzzy Ontologies and Type-2 Fuzzy Description Logics. International Journal of Approximate Reasoning 87:40–66, 2017.
F. Bobillo, U. Straccia. Aggregation Operators for Fuzzy Ontologies. Applied Soft Computing 13(9):3816-3830, 2013.
F. Bobillo, U. Straccia. Fuzzy Description Logics with General T-norms and Datatypes. Fuzzy Sets and Systems 160(23):3382-3402, 2009.

Fuzzy ontology reasoning: optimization

Razonamiento con ontologías difusas: optimización

I. Huitzil, J. Bernad, F. Bobillo. Algorithms for Instance Retrieval and Realization in Fuzzy Ontologies. Mathematics 8(2), 154:1-16, 2020.
F. Bobillo. The Role of Crisp Elements in Fuzzy Ontologies: The Case of Fuzzy OWL 2 EL. IEEE Transactions on Fuzzy Systems 24(5):1193-1209, 2016.
F. Bobillo, U. Straccia. Optimising Fuzzy Description Logic Reasoners with General Concept Inclusions Absorption. Fuzzy Sets and Systems 292:98-129, 2016.

Fuzzy ontology reasoning: decidability

Razonamiento con ontologías difusas: decidibilidad

F. Bobillo, F. Bou, U. Straccia. On the Failure of the Finite Model Property in some Fuzzy Description Logics. Fuzzy Sets and Systems 172(1):1-12, 2011.

Fuzzy ontology learning

Aprendizaje de ontologías difusas

I. Huitzil, F. Bobillo. Fuzzy Ontology Datatype Learning using Datil. Expert Systems With Applications 228:120299, 2023.
I. Huitzil, F. Bobillo, J. Gómez-Romero, U. Straccia. Fudge: Fuzzy Ontology Building with Consensuated Fuzzy Datatypes. Fuzzy Sets and Systems 401:91-112, 2020.
F. Bobillo, M. D. Ruiz, J. Gómez-Romero, D. Sánchez. On the Application of Data Mining Techniques to Graded Ontology Building. Actas del XVIII Congreso Español sobre Tecnologías y Lógica Fuzzy (ESTYLF 2016), pp. 142-143. San Sebastián (Spain), May 2016.

Fuzzy ontology applications

Aplicaciones de ontologías difusas

F. Bobillo, J. Bosque-Gil, J. Gracia, M. Lanau-Coronas. Fuzzy Lemon: Making lexical semantic relations more juicy. Proceedings of the 8th Workshop on Linked Data in Linguistics (LDL 2022), pp. 45-51. Marseille (France), June 2022.
I. Huitzil, Á. Fuentemilla, F. Bobillo. I Can Get Some Satisfaction: Fuzzy Ontologies for Partial Agreements in Blockchain Smart Contracts. Proceedings of the 29th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2020). IEEE Press, Glasgow (United Kingdom), July 2020.
I. Huitzil, F. Alegre, F. Bobillo. GimmeHop: A Recommender System for Mobile Devices using Ontology Reasoners and Fuzzy Logic. Fuzzy Sets and Systems 401:55-77, 2020.
I. Huitzil, L. Dranca, J. Bernad, F. Bobillo. Gait Recognition Using Fuzzy Ontologies and Kinect Sensor Data. International Journal of Approximate Reasoning 113:354-371, 2019
P. León-Araúz, J. Gómez-Romero, F. Bobillo. A Fuzzy Ontology Extension of WordNet and EuroWordnet for Specialized Knowledge. Proceedings of the 10th International Conference on Terminology and Knowledge Engineering Conference (TKE 2012), Madrid (Spain), pp. 139-154, June 2012. Best paper award.
F. Bobillo, M. Delgado, J. Gómez-Romero, E. López. A Semantic Fuzzy Expert System for a Fuzzy Balanced Scorecard. Expert Systems with Applications 36(1):423-433, 2009.
A. Ragone, U. Straccia, F. Bobillo, T. D. Noia, E. D. Sciascio. Fuzzy Bilateral Matchmaking in E-marketplaces. Proceedings of the 12th International Conference on Knowledge-Based, Intelligent Information & Engineering Systems (KES 2008), Lecture Notes in Computer Science 5179, pp. 293-301, Zagreb (Croatia), September 2008.

Fuzzy ontologies and construction

Ontologías difusas y construcción

I. Huitzil, M. Molina-Solana, J. Gómez-Romero, M. Schorlemmer, P. Garcia-Calvés, N. Osman, J. Coll, F. Bobillo. Semantic Building Information Modeling: An Empirical Evaluation of Existing Tools. Journal of Industrial Information Integration 42:100731, 2024.
I. Huitzil, M. Molina-Solana, J. Gómez-Romero, F. Bobillo. Minimalistic Fuzzy Ontology Reasoning: An application to Building Information Modeling. Applied Soft Computing 103:107158, 2021.
J. Gómez-Romero, F. Bobillo, M. Ros, M. Molina-Solana, M. D. Ruiz, M. J. Martín-Bautista. A Fuzzy Extension of the Semantic Building Information Model. Automation in Construction 57:202–212, 2015.

Fuzzy knowledge graphs

Grafos de conocimiento difusos

J. F. Yagüe, I. Huitzil, C. Bobed, F. Bobillo. FUKG: Answering Flexible Queries over Knowledge Graphs. The Electronic Library 42(3):368-392, 2024.

Uncertainty (not only fuzzy) in ontologies and Semantic Web

Incertidumbre (no solamente difusa) en ontologías y Web Semántica

I. Riali, F. Messaouda, F. Bobillo. ProbFuzOnto: A Fuzzy Ontology-Driven Uncertainty approach using Fuzzy Bayesian Networks. International Journal of Fuzzy Systems 27(3):680-700, 2025.
F. Bobillo, U. Straccia. Generalized Fuzzy Rough Description Logics. Information Sciences 189(1):43-62, 2012.
F. Bobillo, M. Delgado, J. Gómez-Romero. Extending Fuzzy Description Logics with a Possibilistic Layer. Proceedings of the 3rd Workshop on Uncertainty Reasoning for the Semantic Web (URSW 2007), CEUR Workshop Proceedings 327, Busan (South Korea), November 2007.

Context representation and reasoning

Representación y razonamiento con el contexto

F. Bobillo, M. Delgado, J. Gómez-Romero. Representation of Context-dependant Knowledge in Ontologies: A Model and an Application. Expert Systems with Applications 35(4), 1899-1908, 2008.
F. Bobillo, M. Delgado, J. Gómez-Romero. An Ontology Design Pattern for Representing Relevance in OWL. Proceedings of the 6th International Semantic Web Conference (ISWC 2007), Lecture Notes in Computer Science 4825, pp. 72-85, Busan (South Korea), November 2007.

Classical ontologies and Semantic Web

Ontologías clásicas y Web Semántica

F. Bobillo, C. Bobed, E. Mena, U. Straccia. A Fuzzy Logic-based Approach to Semantic Query Answering with Missing Values. Proceedings of the 33rd IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2024). IEEE. Yokohama (Japan), June 2024.
J. Z. Pan, C. Bobed, I. Guclu, F. Bobillo, M. J. Kollingbaum, E. Mena, Y.-F. Li. Predicting Reasoner Performance on ABox Intensive OWL 2 EL Ontologies. International Journal on Semantic Web and Information Systems 14(1):1-30, 2018.
C. Bobed, R. Yus, F. Bobillo, S. Ilarri, J. Bernad, E. Mena, R. Trillo-Lado, A. L. Garrido. Emerging Semantic-Based Applications. In Semantic Web - Implications for Technologies and Business Practices. Lecture Notes in Computer Science, pp. 41-85, Springer, 2016.
C. Bobed, F. Bobillo, S. Ilarri, E. Mena. Answering Continuous Description Logic Queries: Managing Static and Volatile Knowledge in Ontologies. International Journal on Semantic Web and Information Systems 10(3):1-44, 2014.
F. Bobillo, J. Gómez-Romero, R. Pérez-Pérez. Towards Semantic Web Services: A Brief Overview. Proceedings of the IADIS International Conference (WWW/Internet 2005), vol, 1, pp. 19-26, Lisbon (Portugal), October 2005.

Semantics and mobile devices

Semántica y dispositivos móviles

C. Bobed, F. Bobillo, E. Jiménez-Ruiz, E. Mena, J. Z. Pan. Praedixi, Redegi, Cogitavi: Adaptive Knowledge for Resource-aware Semantic Reasoning. Expert Systems with Applications 250:123838, 2024.
C. Bobed, F. Bobillo, E. Mena, J. Z. Pan. On Serializable Incremental Semantic Reasoners. Proceedings of the 9th International Conference on Knowledge Capture (K-CAP 2017), pp 187-190, ACM, Austin (USA), December 2017.
C. Bobed, R. Yus, F. Bobillo, E. Mena. Semantic reasoning on mobile devices: Do androids dream of efficient reasoners?. Journal of Web Semantics 35(4):167–183, 2015.

Ontology alignment

Alineamiento de ontologías

I. Huitzil, F. Bobillo, E. Mena, C. Bobed, J. Bermúdez. Evaluating some Heuristics to Find Hyponyms between Ontologies. ICEIS 2019 - Revised Selected Papers. Lecture Notes in Business Information Processing 378. Springer, pp. 274-298, 2020.
F. Bobillo, C. Bobed, E. Mena. On the Generalization of the Discovery of Subsumption Relationships to the Fuzzy Case. Proceedings of the 26th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2017), pp. 1-6. Naples (Italy), July 2017.

Fuzzy logic

Lógica difusa

F. Bobillo. Lógica difusa: una manera de pensar humana para las máquinas. Proyecto Inteligencia Artificial y Sistemas Autónomos Cognitivos (Unidigital IASAC), 2023.
I. Huitzil, F. Bobillo. Some Properties of the Left Recursive Form of the Convex Combination Linguistic Aggregator. Proceedings of the 15th International Conference on Flexible Query Answering Systems (FQAS 2023). Lecture Notes in Artificial Intelligence 14113, Springer, pp. 50–62. Palma de Mallorca (Spain).
Á. Cristobal, I. Huitzil, F. Bobillo. Learning OWA Weights by Combining Fuzzy quantifiers with Empirical Data. Actas del XX Congreso Español sobre Tecnologías y Lógica Fuzzy (ESTYLF 20-21), pp. 351-356. Málaga (Spain), 2021.

Neurosymbolic AI

IA neurosimbólica

F. Bobillo, M. Ionov, E. Mena, C. Bobed. Towards Multilingual Haikus: Representing Accentuation to Build Poems. Proceedings of the 5th Conference on Language, Data and Knowledge (LDK 2025), pp. 50-55. Naples (Italy), September 2025.
F. Bobillo, E. Mena. J. Gracia, C. Bobed. HAIKU: Hybrid Artificial Intelligence on Knowledge and lingUistics. Actas de las XXIX Jornadas de Ingeniería del Software y Bases de Datos (JISBD 2025), pp. 1-4. Córdoba (Spain), September 2025.

Teaching

Docencia

F. Bobillo. Introducción a la programación. Un enfoque práctico usando Pascal y Python. ISBN 978-84-09-60183-7, March 2024.

>Popular science

Divulgación

F. Bobillo. fobIA: miedo a la Inteligencia Artificial. Alquería 3:30-33, August 2025.