Flexible querying Graphes Artificial intelligence Data integration Knowledge base Conceptual graphs Selection criterion Ontology-Based Data Access RDF Knowledge Representation Artificial Intelligence Graphs Conceptual Graphs SPARQL Knowledge management CONCEPTUAL GRAPHS Rules Informatique Description Logics Agroalimentaire Algorithm OWL Deduction Argumentation framework Decision support system Experiments Graphes conceptuels Reverse engineering Base de connaissances Decidability Règles existentielles Modeling Web sémantique Information extraction Existential Rules Animal food product Argumentation systems Knowledge Representation and Reasoning Conjunctive Queries with Negation Aide à la décision Decision making Argumentation Framework TOPIC MAPS Algorithms Outil d'aide à la décision Analyse multicritère Preferences Intelligence artificielle Représentation des connaissances Agent-based simulation Ontologie Knowledge bases Annotation Sustainability Déduction Query rewriting Graphes Conceptuels Linked data Alternative Existential rules Reasoning Query answering Query language Acyclicity Databases Intelligence Artificielle Knowledge representation Logic-based argumentation Homomorphisme Complexity RDFS Algorithme Critère de choix Knowledge integration Information integration ASPIC+ Explanation Datalog+ Heuristics Decision support AI First-order logic Expert knowledge Ontologies Semantic web Backward chaining Decision Support System Conceptual graph Inconsistency Negation Homomorphism Semantic Web Argumentation Agrifood chain control Ontology Applications Chase Conceptual Graph TGD Food packaging