[PDF] An extended Datalog Syntax for Existential Rules and - LIRMM
This document defines a textual format for the existential rule framework, also called Datalog+/- It is meant to be an exchange format at once human-friendly, concise and easy to parse This format can be seen as an extension of the commonly used format for plain Datalog It is called “dlgp” for “Datalog Plus”
[PDF] DLGP: An extended Datalog Syntax for Existential Rules and
9 jui 2015 · This document specifies the version 2 0 of dlgp, a textual format for the existential rule / Datalog± framework This format is meant to be an
[PDF] An Introduction to Existential Rules - ASPIQ
extend First-Order Horn clauses, i e , plain Datalog rules, by allowing to intro- rule in Example 1 is an existential rule; it allows to infer the existence of a movie
[PDF] Chasing Sets: How to Use Existential Rules for Expressive - IJCAI
able existential rule language that guarantees the chase to be finite [Krötzsch intermediate language, Datalog(S), which extends Datalog Example 1 Before
[PDF] Query Answering for Existential Rules via Efficient Datalog - IJCAI
Existential rules (a k a Datalog± and tuple generating de- pendencies) [Baget et 2017], it is challenging to extend them to more general ex- istential rules, which from Example 1 is not separable, yet a datalog rewriting does exist We call a
[PDF] A Fast Query Answering over Existential Rules
extension of Datalog [Abiteboul et al 1995] that allows existentially quantified variables in rule heads For example, the following Datalog∃ (or “existential”)
[PDF] Well-Founded Semantics for Extended Datalog and - Strathprints
The recent Datalog± family of ontology languages [1] extends plain Datalog by the possibil- ity of existential quantification in rule heads and other features, and simultaneously restricts the rule syntax to achieve decidability and tractability
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