Rules and Rulebases A rule is an object that can be applied to draw inferences from RDF Data. An IF side pattern for the antecedents.
{"Image DocumentName": "Rules and RulebasesA rule is an object that can be applied to draw inferences from RDF Data. An IF side pattern for the antecedents.", "Image ImageDescription": "An optional filter condition that further restricts the subgraphs matched by the IF side pattern. A THEN side pattern for the consequents. A rulebase is an object that contains rules. RDF and RDFS rulebases are provided. Each RDF rulebase consists of a set of rules. Each rule is identified by a name, and consists of an \u2018IF\u2019 side pattern for the antecedents, an optional filter condition that further restricts the subgraphs, and a \u2018THEN\u2019 side pattern for the consequents. A rule when applied to an RDF model may yield additional triples. An RDF model augmented with a rulebase is equivalent to the original set of triples plus the triples inferred by applying the rulebase to the model. Rules in a rulebase may be applied to the rulebase itself to generate additional triples. Oracle supplies both an RDF rulebase that implements the RDF entailment rules, and an RDF Schema (RDFS) rulebase that implements the RDFS entailment rules. Both rulebases are automatically created when RDF support is added to the database. It is also possible to create a user-defined rulebase for additional specialized inferencing capabilities. For each rulebase, a system table is created to hold rules in the rulebase, along with a system view of the rulebase. The view is used to insert, delete and modify rules in the rulebase.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}