Umberto Straccia

Marco Cerami, Umberto Straccia: On the (un)decidability of fuzzy description logics under Łukasiewicz t-norm. Inf. Sci. 227: 1-21 (2013)

Fernando Bobillo, Umberto Straccia: Finite Fuzzy Description Logics and Crisp Representations. URSW (LNCS Vol.) 2013: 99-118

Umberto Straccia, Nicolás Madrid: A top-k query answering procedure for fuzzy logic programming. Fuzzy Sets and Systems 205: 1-29 (2012)

Fernando Bobillo, Miguel Delgado, Juan Gómez-Romero, Umberto 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)

Fernando Bobillo, Umberto Straccia: Generalized fuzzy rough description logics. Inf. Sci. 189: 43-62 (2012)

Umberto Straccia: Top-k retrieval for ontology mediated access to relational databases. Inf. Sci. 198: 1-23 (2012)

Antoine Zimmermann, Nuno Lopes, Axel Polleres, Umberto Straccia: A general framework for representing, reasoning and querying with annotated Semantic Web data. J. Web Sem. 11: 72-95 (2012)

Umberto Straccia: Foundations of Fuzzy Logic and Semantic Web Languages. CILC 2012: 1

Sumeet Dua, Aryya Gangopadhyay, Parimala Thulasiraman, Umberto Straccia, Michael A. Shepherd, Benno Stein (Eds.): Information Systems, Technology and Management - 6th International Conference, ICISTM 2012, Grenoble, France, March 28-30, 2012. Proceedings. Communications in Computer and Information Science 285, Springer 2012, isbn 978-3-642-29165-4

Markus Krötzsch, Umberto Straccia (Eds.): Web Reasoning and Rule Systems - 6th International Conference, RR 2012, Vienna, Austria, September 10-12, 2012. Proceedings. Lecture Notes in Computer Science 7497, Springer 2012, isbn 978-3-642-33202-9

Umberto Straccia: Description Logics with Fuzzy Concrete Domains. CoRR abs/1207.1410 (2012)

Fernando Bobillo, Félix Bou, Umberto Straccia: On the failure of the finite model property in some Fuzzy Description Logics. Fuzzy Sets and Systems 172(1): 1-12 (2011)

Fernando Bobillo, Umberto Straccia: Fuzzy ontology representation using OWL 2. Int. J. Approx. Reasoning 52(7): 1073-1094 (2011)

Fernando Bobillo, Umberto Straccia: Reasoning with the finitely many-valued Lukasiewicz fuzzy Description Logic SROIQ. Inf. Sci. 181(4): 758-778 (2011)

Francesca A. Lisi, Umberto Straccia: An Inductive Logic Programming Approach to Learning Inclusion Axioms in Fuzzy Description Logics. CILC 2011: 57-71

Fernando Bobillo, Umberto Straccia: Aggregation operators and Fuzzy OWL 2. FUZZ-IEEE 2011: 1727-1734

Giovanni Casini, Umberto Straccia: Defeasible Inheritance-Based Description Logics. IJCAI 2011: 813-818

Fernando Bobillo, Umberto Straccia: Fuzzy ontologies and fuzzy integrals. ISDA 2011: 1311-1316

Umberto Straccia: Fuzzy Logic, Annotation Domains and Semantic Web Languages. SUM 2011: 2-21

Francesca A. Lisi, Umberto Straccia: Towards Learning Fuzzy DL Inclusion Axioms. WILF 2011: 58-66

Antoine Zimmermann, Nuno Lopes, Axel Polleres, Umberto Straccia: A General Framework for Representing, Reasoning and Querying with Annotated Semantic Web Data. CoRR abs/1103.1255 (2011)

Umberto Straccia: Reasoning within Fuzzy Description Logics. CoRR abs/1106.0667 (2011)

Carlos Viegas Damásio, Alun D. Preece, Umberto Straccia: Proceedings of the Doctoral Consortium and Poster Session of the 5th International Symposium on Rules (RuleML 2011@IJCAI). CoRR abs/1107.1686 (2011)

Marco Cerami, Umberto Straccia: On the Undecidability of Fuzzy Description Logics with GCIs with Lukasiewicz t-norm. CoRR abs/1107.4212 (2011)

Umberto Straccia, Nuno Lopes, Gergely Lukacsy, Axel Polleres: A General Framework for Representing and Reasoning with Annotated Semantic Web Data. AAAI 2010

Alessandro Ciaramella, Mario G. C. A. Cimino, Francesco Marcelloni, Umberto Straccia: Combining Fuzzy Logic and Semantic Web to Enable Situation-Awareness in Service Recommendation. DEXA (1) 2010: 31-45

Fernando Bobillo, Umberto Straccia: Representing fuzzy ontologies in OWL 2. FUZZ-IEEE 2010: 1-6

Umberto Straccia: An Ontology Mediated Multimedia Information Retrieval System. ISMVL 2010: 319-324

Giovanni Casini, Umberto Straccia: Rational Closure for Defeasible Description Logics. JELIA 2010: 77-90

Alexander Borgida, Jos de Bruijn, Enrico Franconi, Inanç Seylan, Umberto Straccia, David Toman, Grant E. Weddell: On Finding Query Rewritings under Expressive Constraints. SEBD 2010: 426-437

Fernando Bobillo, Umberto Straccia: Finite Fuzzy Description Logics: A Crisp Representation for Finite Fuzzy ALCH. URSW 2010: 61-72

Nuno Lopes, Axel Polleres, Umberto Straccia, Antoine Zimmermann: AnQL: SPARQLing Up Annotated RDFS. International Semantic Web Conference (1) 2010: 518-533

Umberto Straccia: SoftFacts: A top-k retrieval engine for ontology mediated access to relational databases. SMC 2010: 4115-4122

Fernando Bobillo, Félix Bou, Umberto Straccia: On the Failure of the Finite Model Property in some Fuzzy Description Logics. CoRR abs/1003.1588 (2010)

Nicolás Madrid Labrador, Umberto Straccia: Monotonic Mappings Invariant Linearisation of Finite Posets. CoRR abs/1006.2679 (2010)

Fernando Bobillo, Umberto Straccia: Fuzzy Ontology Representation using OWL 2. CoRR abs/1009.3391 (2010)

Yann Loyer, Umberto Straccia: Approximate well-founded semantics, query answering and generalized normal logic programs over lattices. Ann. Math. Artif. Intell. 55(3-4): 389-417 (2009)

Azzurra Ragone, Umberto Straccia, Tommaso Di Noia, Eugenio Di Sciascio, Francesco M. Donini: Fuzzy matchmaking in e-marketplaces of peer entities using Datalog. Fuzzy Sets and Systems 160(2): 251-268 (2009)

Fernando Bobillo, Umberto Straccia: Fuzzy description logics with general t-norms and datatypes. Fuzzy Sets and Systems 160(23): 3382-3402 (2009)

Fernando Bobillo, Miguel Delgado, Juan Gómez-Romero, Umberto Straccia: Fuzzy description logics under Gödel semantics. Int. J. Approx. Reasoning 50(3): 494-514 (2009)

Thomas Lukasiewicz, Umberto Straccia: Description logic programs under probabilistic uncertainty and fuzzy vagueness. Int. J. Approx. Reasoning 50(6): 837-853 (2009)

Umberto Straccia, Manuel Ojeda-Aciego, Carlos Viegas Damásio: On Fixed-Points of Multivalued Functions on Complete Lattices and Their Application to Generalized Logic Programs. SIAM J. Comput. 38(5): 1881-1911 (2009)

Simona Colucci, Tommaso Di Noia, Azzurra Ragone, Michele Ruta, Umberto Straccia, Eufemia Tinelli: Informative Top-k Retrieval for Advanced Skill Management. Semantic Web Information Management 2009: 449-476

Umberto Straccia, Eufemia Tinelli, Simona Colucci, Tommaso Di Noia, Eugenio Di Sciascio: A System for Retrieving Top-k Candidates to Job Positions. Description Logics 2009

Fernando Bobillo, Umberto Straccia: Supporting Fuzzy Rough Sets in Fuzzy Description Logics. ECSQARU 2009: 676-687

Fernando Bobillo, Umberto Straccia: Fuzzy Descriptions Logics with Fuzzy Truth Values. IFSA/EUSFLAT Conf. 2009: 189-194

Umberto Straccia: Towards spatial reasoning in fuzzy description logics. FUZZ-IEEE 2009: 512-517

Fernando Bobillo, Umberto Straccia: Extending Datatype Restrictions in Fuzzy Description Logics. ISDA 2009: 785-790

Fernando Bobillo, Umberto Straccia: An OWL Ontology for Fuzzy OWL 2. ISMIS 2009: 151-160

Umberto Straccia, Eufemia Tinelli, Simona Colucci, Tommaso Di Noia, Eugenio Di Sciascio: Semantic-Based Top-k Retrieval for Competence Management. ISMIS 2009: 473-482

Umberto Straccia: Multi Criteria Decision Making in Fuzzy Description Logics: A First Step. KES (1) 2009: 78-86

Umberto Straccia: A Minimal Deductive System for General Fuzzy RDF. RR 2009: 166-181

Umberto Straccia, Eufemia Tinelli, Tommaso Di Noia, Eugenio Di Sciascio, Simona Colucci: Top-k Retrieval for Automated Human Resource Management. SEBD 2009: 161-168

Carlo Meghini, Fabrizio Sebastiani, Umberto Straccia: Multimedia Information Retrieval Model. Encyclopedia of Database Systems 2009: 1820-1824

Carlos Viegas Damásio, Jeff Z. Pan, Giorgos Stoilos, Umberto Straccia: Representing Uncertainty in RuleML. Fundam. Inform. 82(3): 265-288 (2008)

Thomas Lukasiewicz, Umberto Straccia: Tightly Coupled Fuzzy Description Logic Programs under the Answer Set Semantics for the Semantic Web. Int. J. Semantic Web Inf. Syst. 4(3): 68-89 (2008)

Thomas Lukasiewicz, Umberto Straccia: Managing uncertainty and vagueness in description logics for the Semantic Web. J. Web Sem. 6(4): 291-308 (2008)

Azzurra Ragone, Umberto Straccia, Fernando Bobillo, Tommaso Di Noia, Eugenio Di Sciascio, Francesco M. Donini: Fuzzy Description Logics for Bilateral Matchmaking in e-Marketplaces. Description Logics 2008

Azzurra Ragone, Umberto Straccia, Tommaso Di Noia, Eugenio Di Sciascio, Francesco M. Donini: Towards a Fuzzy Logic for Automated Multi-issue Negotiation. FoIKS 2008: 381-396

Fernando Bobillo, Umberto Straccia: fuzzyDL: An expressive fuzzy description logic reasoner. FUZZ-IEEE 2008: 923-930

Fernando Bobillo, Umberto Straccia: Towards a Crisp Representation of Fuzzy Description Logics under Lukasiewicz Semantics. ISMIS 2008: 309-318

Azzurra Ragone, Umberto Straccia, Fernando Bobillo, Tommaso Di Noia, Eugenio Di Sciascio: Fuzzy Bilateral Matchmaking in e-Marketplaces. KES (3) 2008: 293-301

Umberto Straccia: Managing Uncertainty and Vagueness in Description Logics, Logic Programs and Description Logic Programs. Reasoning Web 2008: 54-103

Azzurra Ragone, Umberto Straccia, Fernando Bobillo, Tommaso Di Noia, Eugenio Di Sciascio, Francesco M. Donini: A Fuzzy Description Logic Approach to Bilateral Matchmaking in Electronic Marketplaces. SEBD 2008: 211-222

Umberto Straccia, Giulio Visco: DL-Media: An Ontology Mediated Multimedia Information Retrieval System. URSW 2008

Henrik Nottelmann, Umberto Straccia: Information retrieval and machine learning for probabilistic schema matching. Inf. Process. Manage. 43(3): 552-576 (2007)

Henri Avancini, Leonardo Candela, Umberto Straccia: Recommenders in a personalized, collaborative digital library environment. J. Intell. Inf. Syst. 28(3): 253-283 (2007)

Umberto Straccia, Giulio Visco: DLMedia: an Ontology Mediated Multimedia Information Retrieval System. Description Logics 2007

Umberto Straccia: A Top-Down Query Answering Procedure for Normal Logic Programs Under the Any-World Assumption. ECSQARU 2007: 115-127

Thomas Lukasiewicz, Umberto Straccia: Description Logic Programs Under Probabilistic Uncertainty and Fuzzy Vagueness. ECSQARU 2007: 187-198

Azzurra Ragone, Umberto Straccia, Tommaso Di Noia, Eugenio Di Sciascio, Francesco M. Donini: Vague Knowledge Bases for Matchmaking in P2P E-Marketplaces. ESWC 2007: 414-428

Umberto Straccia, Fernando Bobillo: Mixed Integer Programming, General Concept Inclusions and Fuzzy Description Logics. EUSFLAT Conf. (2) 2007: 213-220

Fernando Bobillo, Umberto Straccia: A Fuzzy Description Logic with Product T-norm. FUZZ-IEEE 2007: 1-6

Umberto Straccia: Towards Vague Query Answering in Logic Programming for Logic-Based Information Retrieval. IFSA (1) 2007: 125-134

Thomas Lukasiewicz, Umberto Straccia: Tightly Integrated Fuzzy Description Logic Programs Under the Answer Set Semantics for the Semantic Web. RR 2007: 289-298

Azzurra Ragone, Umberto Straccia, Tommaso Di Noia, Eugenio Di Sciascio, Francesco M. Donini: Extending Datalog for Matchmaking in P2P E-Marketplaces. SEBD 2007: 463-470

Thomas Lukasiewicz, Umberto Straccia: Top-k Retrieval in Description Logic Programs Under Vagueness for the Semantic Web. SUM 2007: 16-30

Umberto Straccia: Description Logics over Lattices. International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 14(1): 1-16 (2006)

Yann Loyer, Umberto Straccia: Epistemic foundation of stable model semantics. TPLP 6(4): 355-393 (2006)

Giorgos Stoilos, Umberto Straccia, Giorgos B. Stamou, Jeff Z. Pan: General Concept Inclusions inFluzzy Description Logics. ECAI 2006: 457-461

Umberto Straccia, Raphaël Troncy: Towards Distributed Information Retrieval in the Semantic Web: Query Reformulation Using the oMAP Framework. ESWC 2006: 378-392

Umberto Straccia: Towards Top-k Query Answering in Description Logics: The Case of DL-Lite. JELIA 2006: 439-451

Umberto Straccia: Query Answering under the Any-World Assumption for Normal Logic Programs. KR 2006: 329-339

Carlos Viegas Damásio, Jeff Z. Pan, Giorgos Stoilos, Umberto Straccia: An Approach to Representing Uncertainty Rules in RuleML. RuleML 2006: 97-106

M. Elena Renda, Umberto Straccia: Automatic structured query transformation over distributed digital libraries. SAC 2006: 1078-1083

Umberto Straccia: Towards Top-k Query Answering in Deductive Databases. SMC 2006: 4873-4879

Henri Avancini, Umberto Straccia: User recommendation for collaborative and personalised digital archives. IJWBC 1(2): 163-175 (2005)

M. Elena Renda, Umberto Straccia: A personalized collaborative Digital Library environment: a model and an application. Inf. Process. Manage. 41(1): 5-21 (2005)

Yann Loyer, Umberto Straccia: Any-world assumptions in logic programming. Theor. Comput. Sci. 342(2-3): 351-381 (2005)

Henrik Nottelmann, Umberto Straccia: Information retrieval and machine learning for probabilistic schema matching. CIKM 2005: 295-296

Henrik Nottelmann, Umberto Straccia: sPLMap: A Probabilistic Approach to Schema Matching. ECIR 2005: 81-95

Umberto Straccia: Query Answering in Normal Logic Programs Under Uncertainty. ECSQARU 2005: 687-700

Umberto Straccia: Towards a Fuzzy Description Logic for the Semantic Web (Preliminary Report). ESWC 2005: 167-181

Umberto Straccia, Raphaël Troncy: oMAP: Results of the Ontology Alignment Contest. Integrating Ontologies 2005

Umberto Straccia: Uncertainty Management in Logic Programming: Simple and Effective Top-Down Query Answering. KES (2) 2005: 753-760

Umberto Straccia, Raphaël Troncy: oMAP: An Implemented Framework for Automatically Aligning OWL Ontologies. SWAP 2005

Umberto Straccia: Description Logics with Fuzzy Concrete Domains. UAI 2005: 559-567

Umberto Straccia, Raphaël Troncy: oMAP: Combining Classifiers for Aligning Automatically OWL Ontologies. WISE 2005: 133-147

Umberto Straccia, Costantino Thanos: An open collaborative virtual archive environment. Int. J. on Digital Libraries 4(1): 23-24 (2004)

Umberto Straccia: Transforming Fuzzy Description Logics into Classical Description Logics. JELIA 2004: 385-399

Yann Loyer, Umberto Straccia: Epistemic Foundation of the Well-Founded Semantics over Bilattices. MFCS 2004: 513-524

Yann Loyer, Umberto Straccia: Epistemic Foundation of the Stable Model Semantics. CoRR cs.AI/0403002 (2004)

Umberto Straccia: Distributed Search in the Semantic Web. Description Logics 2003

Yann Loyer, Umberto Straccia: Default Knowledge in Logic Programs with Uncertainty. ICLP 2003: 466-480

Yann Loyer, Umberto Straccia: The Approximate Well-Founded Semantics for Logic Programs with Uncertainty. MFCS 2003: 541-550

M. Elena Renda, Umberto Straccia: Web Metasearch: Rank vs. Score Based Rank Aggregation Methods. SAC 2003: 841-846

Leonardo Candela, Umberto Straccia: The Personalized, Collaborative Digital Library Environment CYCLADES and Its Collections Management. Distributed Multimedia Information Retrieval 2003: 156-172

Yann Loyer, Umberto Straccia: Incertitude et hypothèses non-uniformes dans les bases de données déductives. BDA 2002

Yann Loyer, Umberto Straccia: The Well-Founded Semantics in Normal Logic Programs with Uncertainty. FLOPS 2002: 152-166

M. Elena Renda, Umberto Straccia: A Personalized Collaborative Digital Library Environment. ICADL 2002: 262-274

Yann Loyer, Umberto Straccia: Non-uniform Hypothesis in Deductive Databases with Uncertainty. ICLP 2002: 473-474

Yann Loyer, Umberto Straccia: Uncertainty and Partial Non-uniform Assumptions in Parametric Deductive Databases. JELIA 2002: 271-282

Carlo Meghini, Fabrizio Sebastiani, Umberto Straccia: A model of multimedia information retrieval. J. ACM 48(5): 909-970 (2001)

Umberto Straccia: Reasoning within Fuzzy Description Logics. J. Artif. Intell. Res. (JAIR) 14: 137-166 (2001)

Umberto Straccia: On the relationship between fuzzy logic and four-valued relevance logic. CoRR cs.AI/0010037 (2000)

Giuseppe Amato, Umberto Straccia: User Profile Modeling and Applications to Digital Libraries. ECDL 1999: 184-197

Carlo Meghini, Fabrizio Sebastiani, Umberto Straccia: A System for the Fast Prototyping of Multidimensional Image Retrieval. ICMCS, Vol. 2 1999: 603-609

Umberto Straccia: A Fuzzy Description Logic. AAAI/IAAI 1998: 594-599

Carlo Meghini, Fabrizio Sebastiani, Umberto Straccia: Modelling the Retrieval of Structured Documents Containing Texts and Images. ECDL 1997: 325-344

Carlo Meghini, Fabrizio Sebastiani, Umberto Straccia: The Terminological Image Retrieval Model. ICIAP (2) 1997: 156-163

Umberto Straccia: A Four-Valued Fuzzy Propositional Logic. IJCAI (1) 1997: 128-135

Umberto Straccia: A Sequent Calculus for Reasoning in Four-Valued Description Logics. TABLEAUX 1997: 343-357

Carlo Meghini, Umberto Straccia: A Relevance Terminological Logic for Information Retrieval. SIGIR 1996: 197-205

Fabrizio Sebastiani, Umberto Straccia: Default Reasoning in a Terminological Logic. Computers and Artificial Intelligence 14(3) (1995)

Umberto Straccia: Document Retrieval by Relevance Terminological Logics. MIRO 1995

Umberto Straccia: Default Inheritance Reasoning in Hybrid KL-ONE-Style Logics. IJCAI 1993: 676-681

Carlo Meghini, Fabrizio Sebastiani, Umberto Straccia, Costantino Thanos: A Model of Information Retrieval Based on a Terminological Logic. SIGIR 1993: 298-307

Fabrizio Sebastiani, Umberto Straccia: A Computationally Tractable Terminological Logic. SCAI 1991: 307-315