Conceptual structures: information processing in mind and machine
Conceptual structures: information processing in mind and machine
Foundations of Databases: The Logical Level
Foundations of Databases: The Logical Level
Reformulation of XML Queries and Constraints
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Data Exchange: Semantics and Query Answering
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Sound and Complete Forward and backward Chainingd of Graph Rules
ICCS '96 Proceedings of the 4th International Conference on Conceptual Structures: Knowledge Representation as Interlingua
Containment of conjunctive object meta-queries
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
The Description Logic Handbook
The Description Logic Handbook
Tractable Reasoning and Efficient Query Answering in Description Logics: The DL-Lite Family
Journal of Automated Reasoning
Proceedings of the twenty-seventh ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Extensions of simple conceptual graphs: the complexity of rules and constraints
Journal of Artificial Intelligence Research
Conceptual Graph Rules and Equivalent Rules: A Synthesis
ICCS '09 Proceedings of the 17th International Conference on Conceptual Structures: Conceptual Structures: Leveraging Semantic Technologies
Default Conceptual Graph Rules: Preliminary Results for an Agronomy Application
ICCS '09 Proceedings of the 17th International Conference on Conceptual Structures: Conceptual Structures: Leveraging Semantic Technologies
Default conceptual graph rules, atomic negation and Tic-Tac-Toe
ICCS'10 Proceedings of the 18th international conference on Conceptual structures: from information to intelligence
Query answering under non-guarded rules in datalog+/-
RR'10 Proceedings of the Fourth international conference on Web reasoning and rule systems
On the termination of the chase algorithm
RR'10 Proceedings of the Fourth international conference on Web reasoning and rule systems
Advanced processing for ontological queries
Proceedings of the VLDB Endowment
A better uncle for OWL: nominal schemas for integrating rules and ontologies
Proceedings of the 20th international conference on World wide web
On rules with existential variables: Walking the decidability line
Artificial Intelligence
Ontological query answering with existential rules
RR'11 Proceedings of the 5th international conference on Web reasoning and rule systems
Towards farsighted dependencies for existential rules
RR'11 Proceedings of the 5th international conference on Web reasoning and rule systems
Polynomial conjunctive query rewriting under unary inclusion dependencies
RR'11 Proceedings of the 5th international conference on Web reasoning and rule systems
Datalog+/-: a family of languages for ontology querying
Datalog'10 Proceedings of the First international conference on Datalog Reloaded
Walking the complexity lines for generalized guarded existential rules
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Two
Extending decidable existential rules by joining acyclicity and guardedness
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Two
Existential rules: a graph-based view
Datalog 2.0'12 Proceedings of the Second international conference on Datalog in Academia and Industry
A sound and complete backward chaining algorithm for existential rules
RR'12 Proceedings of the 6th international conference on Web Reasoning and Rule Systems
Query processing under GLAV mappings for relational and graph databases
Proceedings of the VLDB Endowment
On the exploration of the query rewriting space with existential rules
RR'13 Proceedings of the 7th international conference on Web Reasoning and Rule Systems
Graph-based reasoning in collaborative knowledge management for industrial maintenance
Computers in Industry
Compact rewritings for existential rules
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
Sound, complete, and minimal query rewriting for existential rules
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
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In ∀∃-rules, the conclusion may contain existentially quantified variables, which makes reasoning tasks (as deduction) non-decidable. These rules have the same logical form as TGD (tuple-generating dependencies) in databases and as conceptual graph rules. We extend known decidable cases by combining backward and forward chaining schemes, in association with a graph that captures exactly the notion of dependency between rules. Finally, we draw a map of known decidable cases, including an extension obtained by combining our approach with very recent results on TGD.