notebook/notes/ontology/rdf.md

title	TARGET DECK	FILE TAGS	tags
RDF	Obsidian::STEM	ontology::rdf	rdf

Overview

The Resource Description Framework (RDF) is the foundational representation language of the Semantic Web. The basic building block of RDF is the triple containing a subject, predicate, and object. Global identifiers of resources are represented as uri (or, more generally, IRIs). These URIs can be expressed more compactly as uri#CURIEs.

A graph is a set of triples. A named graph is a particular set of triples with an associated name. When using named graphs, the term quads is often used in favor of triples. This refers to the original triple along with the name of the graph the triple is associated with.

%%ANKI Basic Which organization standardized RDF? Back: W3C Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What is W3C an acronym for? Back: World Wide Web Consortium. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What is RDF an acronym for? Back: Resource Description Framework. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What is considered the basic representation language of the Semantic Web? Back: RDF. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze With respect to RDF, a {resource} is {anything representable on the web}. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What aggregate concept is considered the basic building block of RDF? Back: The triple. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What three components make up an RDF triple? Back: The subject, predicate, and object. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze In RDF, a triple is a ({subject}, {predicate}, {object}) tuple. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze A {subject} is to a semantic triple as a row number is to a relation record. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze A {predicate} is to a semantic triple as an attribute is to a relation record. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze An {object} is to a semantic triple as a value is to a relation record. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic Consider converting the following table to a triple. What is the subject? ! Back: Row 2 Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic Consider converting the following table to a triple. What is the object? ! Back: Hamlet Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic Consider converting the following table to a triple. What is the predicate? ! Back: Title Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic RDF identifiers use what encoding? Back: URIs. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic How does RDF define a graph? Back: As a set of triples. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic How does RDF define a named graph? Back: A graph with a name. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze {1:Triples} are to {2:graphs} whereas {2:quads} are to {1:named graphs}. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What name is given to the members of a triple? Back: "Subject", "predicate", and "object". Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Basic What name is given to the members of a quad? Back: "Subject", "predicate", "object", and "graph". Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.

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%%ANKI Cloze RDF is a {data model} whereas XML is a {serialization}. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020. Tags: xml

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%%ANKI Basic How might RDF and XML relate to one another? Back: XML can be used to serialize RDF. Reference: Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020. Tags: xml

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Bibliography

• Allemang, Dean, James A. Hendler, and Fabien L. Gandon. Semantic Web for the Working Ontologist. 3e ed. ACM Books 33. New York: Association for computing machinery, 2020.