Tractable Query Answering over Conceptual Schemata. - Andrea Calì; Georg Gottlob; Andreas Pieris (ER, 2009)

Ontological Reasoning with F-logic Lite and its Extensions. - Andrea Calì; Georg Gottlob; Michael Kifer; Thomas Lukasiewicz; Andreas Pieris (AAAI, 2010)

Query Rewriting under Non-Guarded Rules. - Andrea Calì; Georg Gottlob; Andreas Pieris (AMW, 2010)

Datalog+/-: A Family of Languages for Ontology Querying. - Andrea Calì; Georg Gottlob; Thomas Lukasiewicz; Andreas Pieris (Datalog, 2010)

Query Answering under Expressive Entity-Relationship Schemata. - Andrea Calì; Georg Gottlob; Andreas Pieris (ER, 2010)

Datalog+/-: A Family of Logical Knowledge Representation and Query Languages for New Applications. - Andrea Calì; Georg Gottlob; Thomas Lukasiewicz; Bruno Marnette; Andreas Pieris (LICS, 2010)

Query Answering under Non-guarded Rules in Datalog+/-. - Andrea Calì; Georg Gottlob; Andreas Pieris (RR, 2010)

Tractable Query Answering over Conceptual Schemata (Extended Abstract). - Andrea Calì; Georg Gottlob; Andreas Pieris (SEBD, 2010)

Facets of the Fully Mixed Nash Equilibrium Conjecture. - Rainer Feldmann; Marios Mavronicolas; Andreas Pieris (Theory Comput. Syst., 2010)

Advanced Processing for Ontological Queries. - Andrea Calì; Georg Gottlob; Andreas Pieris (Proc. VLDB Endow., 2010)

New Expressive Languages for Ontological Query Answering. - Andrea Calì; Georg Gottlob; Andreas Pieris (AAAI, 2011)

Ontological Query Answering via Rewriting. - Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (ADBIS, 2011)

On Equality-Generating Dependencies in Ontology Querying - Preliminary Report. - Andrea Calì; Andreas Pieris (AMW, 2011)

Querying Conceptual Schemata with Expressive Equality Constraints. - Andrea Calì; Georg Gottlob; Andreas Pieris (ER, 2011)

Ontological queries: Rewriting and optimization. - Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (ICDE, 2011)

On Equality-Generating Dependencies in Ontology Querying (Extended Abstract). - Andrea Calì; Andreas Pieris (SEBD, 2011)

Ontological Queries: Rewriting and Optimization (Extended Version) - Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (CoRR, 2011)

Optimizing Query Answering under Ontological Constraints. - Giorgio Orsi 001; Andreas Pieris (Proc. VLDB Endow., 2011)

A logical toolbox for ontological reasoning. - Andrea Calì; Georg Gottlob; Thomas Lukasiewicz; Andreas Pieris (SIGMOD Rec., 2011)

Ontological query answering : new languages, algorithms and complexity. - Andreas Pieris (2011)

The Return of the Entity-Relationship Model: Ontological Query Answering. - Andrea Calì; Georg Gottlob; Andreas Pieris (Semantic Search over the Web, 2012)

On the Interaction of Existential Rules and Equality Constraints in Ontology Querying. - Andrea Calì; Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (Correct Reasoning, 2012)

Querying UML Class Diagrams. - Andrea Calì; Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (FoSSaCS, 2012)

On the Complexity of Ontological Reasoning under Disjunctive Existential Rules. - Georg Gottlob; Marco Manna; Michael Morak; Andreas Pieris (MFCS, 2012)

Datalog and Its Extensions for Semantic Web Databases. - Georg Gottlob; Giorgio Orsi 001; Andreas Pieris; Mantas Simkus (Reasoning Web, 2012)

Towards more expressive ontology languages: The query answering problem. - Andrea Calì; Georg Gottlob; Andreas Pieris (Artif. Intell., 2012)

Ontological query answering under expressive Entity-Relationship schemata. - Andrea Calì; Georg Gottlob; Andreas Pieris (Inf. Syst., 2012)

Tractable Reasoning in Description Logics with Functionality Constraints. - Andrea Calì; Georg Gottlob; Andreas Pieris (In Search of Elegance in the Theory and Practice of Computation, 2013)

Querying the Guarded Fragment with Transitivity. - Georg Gottlob; Andreas Pieris; Lidia Tendera (ICALP (2), 2013)

The Impact of Disjunction on Query Answering Under Guarded-Based Existential Rules. - Pierre Bourhis; Michael Morak; Andreas Pieris (IJCAI, 2013)

Combining decidability paradigms for existential rules. - Georg Gottlob; Marco Manna; Andreas Pieris (Theory Pract. Log. Program., 2013)

Acyclic Query Answering under Guarded Disjunctive Existential Rules and Consequences to DLs. - Pierre Bourhis; Michael Morak; Andreas Pieris (Description Logics, 2014)

Datalog+/-: Questions and Answers. - Georg Gottlob; Thomas Lukasiewicz; Andreas Pieris (KR, 2014)

Polynomial Combined Rewritings for Existential Rules. - Georg Gottlob; Marco Manna; Andreas Pieris (KR, 2014)

Towards Efficient Reasoning Under Guarded-Based Disjunctive Existential Rules. - Pierre Bourhis; Michael Morak; Andreas Pieris (MFCS (1), 2014)

Query Rewriting and Optimization for Ontological Databases. - Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (ACM Trans. Database Syst., 2014)

From Classical to Consistent Query Answering under Existential Rules. - Thomas Lukasiewicz; Maria Vanina Martinez; Andreas Pieris; Gerardo I. Simari (AAAI, 2015)

Chase Termination for Guarded Existential Rules. - Marco Calautti; Georg Gottlob; Andreas Pieris (AMW, 2015)

Polynomial Combined Rewritings for Linear Existential Rules and DL-Lite with n-ary Relations. - Georg Gottlob; Marco Manna; Andreas Pieris (Description Logics, 2015)

Polynomial Rewritings for Linear Existential Rules. - Georg Gottlob; Marco Manna; Andreas Pieris (IJCAI, 2015)

Beyond SPARQL under OWL 2 QL Entailment Regime: Rules to the Rescue. - Georg Gottlob; Andreas Pieris (IJCAI, 2015)

From Classical to Consistent Query Answering under Existential Rules. - Andreas Pieris (JOWO@IJCAI, 2015)

Default Negation for Non-Guarded Existential Rules. - Mario Alviano; Andreas Pieris (PODS, 2015)

Consistency Checking of Re-engineered UML Class Diagrams via Datalog+/-. - Georg Gottlob; Giorgio Orsi 001; Andreas Pieris (RuleML, 2015)

Recent Advances in Datalog ^ pm. - Georg Gottlob; Michael Morak; Andreas Pieris (Reasoning Web, 2015)

A Datalog-Based Language for Querying RDF Graphs. - Marcelo Arenas; Georg Gottlob; Andreas Pieris (AMW, 2016)

Semantic Acyclicity Under Constraints. - Pablo Barceló; Georg Gottlob; Andreas Pieris (AMW, 2016)

Ontology-Mediated Queries Distributing over Components. - Gerald Berger; Andreas Pieris (IJCAI, 2016)

Guarded-Based Disjunctive Tuple-Generating Dependencies. - Pierre Bourhis; Marco Manna; Michael Morak; Andreas Pieris (ACM Trans. Database Syst., 2016)

Combining decidability paradigms for existential rules. Theory and Practice of Logic Programming - Corrigendum. - Georg Gottlob; Marco Manna; Andreas Pieris (Theory Pract. Log. Program., 2016)

Guarded Ontology-Mediated Queries Distributing Over Components. - Pablo Barceló; Gerald Berger; Andreas Pieris (AMW, 2017)

Swift Logic for Big Data and Knowledge Graphs. - Luigi Bellomarini; Georg Gottlob; Andreas Pieris; Emanuel Sallinger (IJCAI, 2017)

Making Cross Products and Guarded Ontology Languages Compatible. - Pierre Bourhis; Michael Morak; Andreas Pieris (IJCAI, 2017)

Logic, Languages, and Rules for Web Data Extraction and Reasoning over Data. - Georg Gottlob; Christoph Koch 001; Andreas Pieris (LATA, 2017)

Stable Model Semantics for Tuple-Generating Dependencies Revisited. - Mario Alviano; Michael Morak; Andreas Pieris (PODS, 2017)

Semantic Optimization in Tractable Classes of Conjunctive Queries. - Pablo Barceló; Andreas Pieris; Miguel Romero 001 (SIGMOD Rec., 2017)

The Vadalog System: Swift Logic for Big Data and Enterprise Knowledge Graphs. - Luigi Bellomarini; Georg Gottlob; Andreas Pieris; Emanuel Sallinger (AMW, 2018)

An Operational Approach to Consistent Query Answering. - Marco Calautti; Leonid Libkin; Andreas Pieris (AMW, 2018)

First-Order Rewritability of Frontier-Guarded Ontology-Mediated Queries. - Pablo Barceló; Gerald Berger; Carsten Lutz; Andreas Pieris (IJCAI, 2018)

Finite Model Reasoning in Hybrid Classes of Existential Rules. - Georg Gottlob; Marco Manna; Andreas Pieris (IJCAI, 2018)

Containment for Rule-Based Ontology-Mediated Queries. - Pablo Barceló; Gerald Berger; Andreas Pieris (PODS, 2018)

Vadalog: A Language and System for Knowledge Graphs. - Luigi Bellomarini; Georg Gottlob; Andreas Pieris; Emanuel Sallinger (RuleML+RR, 2018)

Swift Logic for Big Data and Knowledge Graphs - Overview of Requirements, Language, and System. - Luigi Bellomarini; Georg Gottlob; Andreas Pieris; Emanuel Sallinger (SOFSEM, 2018)

The Impact of Active Domain Predicates on Guarded Existential Rules. - Georg Gottlob; Andreas Pieris; Mantas Simkus (Fundam. Informaticae, 2018)

Expressive Languages for Querying the Semantic Web. - Marcelo Arenas; Georg Gottlob; Andreas Pieris (ACM Trans. Database Syst., 2018)

PTime Combined Complexity and FPT in Ontology-Mediated Querying. - Pablo Barceló; Cristina Feier; Carsten Lutz; Andreas Pieris (Description Logics, 2019)

Additive First-Order Queries. - Gerald Berger; Martin Otto 001; Andreas Pieris; Dimitri Surinx; Jan Van den Bussche (ICDT, 2019)

Oblivious Chase Termination: The Sticky Case. - Marco Calautti; Andreas Pieris (ICDT, 2019)

Vadalog: Recent Advances and Applications. - Georg Gottlob; Andreas Pieris; Emanuel Sallinger (JELIA, 2019)

When is Ontology-Mediated Querying Efficient? - Pablo Barceló; Cristina Feier; Carsten Lutz; Andreas Pieris (LICS, 2019)

Counting Database Repairs under Primary Keys Revisited. - Marco Calautti; Marco Console; Andreas Pieris (SEBD, 2019)

All-Instances Restricted Chase Termination: The Guarded Case. - Tomasz Gogacz; Jerzy Marcinkowski; Andreas Pieris (CoRR, 2019)

Multi-head Guarded Existential Rules Over Fixed Signatures. - Georg Gottlob; Marco Manna; Andreas Pieris (KR, 2020)

The Limits of Efficiency for Open- and Closed-World Query Evaluation Under Guarded TGDs. - Pablo Barceló; Victor Dalmau; Cristina Feier; Carsten Lutz; Andreas Pieris (PODS, 2020)

All-Instances Restricted Chase Termination. - Tomasz Gogacz; Jerzy Marcinkowski; Andreas Pieris (PODS, 2020)

Semantic Optimization of Conjunctive Queries. - Pablo Barceló; Diego Figueira; Georg Gottlob; Andreas Pieris (J. ACM, 2020)

All-Instances Restricted Chase Termination for Linear TGDs. - Tomasz Gogacz; Jerzy Marcinkowski; Andreas Pieris (Künstliche Intell., 2020)

Querying the Semantic Web via Rules. - Marcelo Arenas; Georg Gottlob; Andreas Pieris (Applications and Practices in Ontology Design, Extraction, and Reasoning, 2020)

Model-theoretic Characterizations of Rule-based Ontologies. - Marco Console; Phokion G. Kolaitis; Andreas Pieris (Description Logics, 2021)

Benchmarking Approximate Consistent Query Answering. - Marco Calautti; Marco Console; Andreas Pieris (PODS, 2021)

Benchmarking Approximate Consistent Query Answering (Discussion Paper). - Marco Calautti; Marco Console; Andreas Pieris (SEBD, 2021)

Semi-Oblivious Chase Termination: The Sticky Case. - Marco Calautti; Andreas Pieris (Theory Comput. Syst., 2021)

Non-Uniformly Terminating Chase: Size and Complexity. - Marco Calautti; Georg Gottlob; Andreas Pieris (PODS, 2022)

Uniform Operational Consistent Query Answering. - Marco Calautti; Ester Livshits; Andreas Pieris; Markus Schneider 009 (PODS, 2022)

Counting Database Repairs Entailing a Query: The Case of Functional Dependencies. - Marco Calautti; Ester Livshits; Andreas Pieris; Markus Schneider 009 (SEBD, 2022)

Inconsistency-tolerant query answering for existential rules. - Thomas Lukasiewicz; Enrico Malizia; Maria Vanina Martinez; Cristian Molinaro; Andreas Pieris; Gerardo I. Simari (Artif. Intell., 2022)

Absolute Expressiveness of Subgraph Motif Centrality Measures. - Andreas Pieris; Jorge Salas (CoRR, 2022)

The Space-Efficient Core of Vadalog. - Gerald Berger; Georg Gottlob; Andreas Pieris; Emanuel Sallinger (ACM Trans. Database Syst., 2022)

Absolute Expressiveness of Subgraph-Based Centrality Measures. - Andreas Pieris; Jorge Salas (ICDT, 2023)

Generative Datalog with Stable Negation. - Mario Alviano; Matthias Lanzinger; Michael Morak; Andreas Pieris (PODS, 2023)

Semi-Oblivious Chase Termination for Linear Existential Rules: An Experimental Study. - Marco Calautti; Mostafa Milani; Andreas Pieris (Proc. VLDB Endow., 2023)

Uniform Restricted Chase Termination. - Tomasz Gogacz; Jerzy Marcinkowski; Andreas Pieris (SIAM J. Comput., 2023)

Polynomial combined first-order rewritings for linear and guarded existential rules. - Georg Gottlob; Marco Manna; Andreas Pieris (Artif. Intell., 2023)

Explaining Answers to Datalog Queries (Invited Talk). - Andreas Pieris (Datalog, 2024)

Rule-Based Ontologies: From Semantics to Syntax (Invited Talk). - Andreas Pieris (ICDT, 2024)

Computing the Why-Provenance for Datalog Queries via SAT Solvers. - Marco Calautti; Ester Livshits; Andreas Pieris; Markus Schneider 009 (SEBD, 2024)

Characterizing Data Dependencies Then and Now. - Phokion G. Kolaitis; Andreas Pieris (CoRR, 2024)

The Complexity of Why-Provenance for Datalog Queries. - Marco Calautti; Ester Livshits; Andreas Pieris; Markus Schneider 009 (Proc. ACM Manag. Data, 2024)

Combined Approximations for Uniform Operational Consistent Query Answering. - Marco Calautti; Ester Livshits; Andreas Pieris; Markus Schneider 009 (Proc. ACM Manag. Data, 2024)

Selected Papers from Datalog 2.0 2022. - Mario Alviano; Andreas Pieris (Theory Pract. Log. Program., 2024)

Below and Above Why-Provenance for Datalog Queries. - Marco Calautti; Ester Livshits; Andreas Pieris; Markus Schneider 009 (Proc. ACM Manag. Data, 2024)

Finite Axiomatizability by Disjunctive Existential Rules. - Marco Calautti; Marco Console; Andreas Pieris (CoRR, 2025)