Web-based graphical querying of databases through an ontology: the Wonder system. - Diego Calvanese; C. Maria Keet; Werner Nutt; Mariano Rodriguez-Muro; Giorgio Stefanoni (SAC, 2010)

The Complexity of Conjunctive Query Abduction in DL-Lite. - Diego Calvanese; Magdalena Ortiz 001; Mantas Simkus; Giorgio Stefanoni (Description Logics, 2011)

Small Datalog Query Rewritings for EL. - Giorgio Stefanoni; Boris Motik; Ian Horrocks 001 (Description Logics, 2012)

The Complexity of Explaining Negative Query Answers in DL-Lite. - Diego Calvanese; Magdalena Ortiz 001; Mantas Simkus; Giorgio Stefanoni (KR, 2012)

Introducing Nominals to the Combined Query Answering Approaches for EL. - Giorgio Stefanoni; Boris Motik; Ian Horrocks 001 (AAAI, 2013)

Reasoning about Explanations for Negative Query Answers in DL-Lite. - Diego Calvanese; Magdalena Ortiz 001; Mantas Simkus; Giorgio Stefanoni (J. Artif. Intell. Res., 2013)

Answering Conjunctive Queries over $ mathcal{EL}$ Knowledge Bases with Transitive and Reflexive Roles. - Giorgio Stefanoni; Boris Motik (CoRR, 2014)

The Complexity of Answering Conjunctive and Navigational Queries over OWL 2 EL Knowledge Bases. - Giorgio Stefanoni; Boris Motik; Markus Krötzsch; Sebastian Rudolph (J. Artif. Intell. Res., 2014)

Answering Conjunctive Queries over EL Knowledge Bases with Transitive and Reflexive Roles. - Giorgio Stefanoni; Boris Motik (AAAI, 2015)

Extending the Combined Approach Beyond Lightweight Description Logics. - Cristina Feier; David Carral; Giorgio Stefanoni; Bernardo Cuenca Grau; Ian Horrocks 001 (Description Logics, 2015)

The Combined Approach to Query Answering Beyond the OWL 2 Profiles. - Cristina Feier; David Carral; Giorgio Stefanoni; Bernardo Cuenca Grau; Ian Horrocks 001 (IJCAI, 2015)

Evaluating conjunctive and graph queries over the EL profile of OWL 2. - Giorgio Stefanoni (2015)

Weakly-supervised Contextualization of Knowledge Graph Facts. - Nikos Voskarides; Edgar Meij; Ridho Reinanda; Abhinav Khaitan; Miles Osborne; Giorgio Stefanoni; Prabhanjan Kambadur; Maarten de Rijke (SIGIR, 2018)

Estimating the Cardinality of Conjunctive Queries over RDF Data Using Graph Summarisation. - Giorgio Stefanoni; Boris Motik; Egor V. Kostylev (WWW, 2018)

Identifying Notable News Stories. - Antonia Saravanou; Giorgio Stefanoni; Edgar Meij (ECIR (2), 2020)