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{{Graphical representation header}} | {{Graphical representation header}} | ||
{{Graphical representation | {{Graphical representation | ||
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{{Content OP Proposal Template | {{Content OP Proposal Template | ||
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| − | | | + | |Name=Literal Reification |
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|Intent=The goal of this pattern is to allow the reification of literal values within OWL. | |Intent=The goal of this pattern is to allow the reification of literal values within OWL. | ||
| + | |Domain=General | ||
|CompetencyQuestion=What is the context in which entities refer to a particular literal value? | |CompetencyQuestion=What is the context in which entities refer to a particular literal value? | ||
What are the meanings of a particular value considering the context in which it is used? | What are the meanings of a particular value considering the context in which it is used? | ||
| − | | | + | |ContentODPDescription=Literals are reified in proper ontological individual, expressing the literal value they refer to through a data property. This reification allows to use each 'reified literal' as subject or object of assertions. |
| − | | | + | |ReusableOWLBuildingBlock=http://www.essepuntato.it/2010/06/literalreification |
| + | |Scenario=From a Web 2.0 point of view, a tag is a non-hierarchical keyword (e.g., a string) assigned to a piece of information, such as a web document. A particular tag can have more than one meaning according to the context in which it is specified. Let us consider the following two article from Wikipedia: 1) http://en.wikipedia.org/wiki/Ulysses_%28novel%29 2) http://en.wikipedia.org/wiki/Paris_Hilton The tag 'Paris' can be added to both articles, of course, but it brings with itself two different meanings, even though it is exactly the same string that has been used. In the above example, we want to say that 'Paris' is a first name of the person document 2) is about (i.e., Paris Hilton), while in document 1) 'Paris' is the name of the city in which the subject of the document (the novel 'Ulysses' by James Joyce) was published the very first time. Using the reified literal pattern, we can express tags as proper individuals of the class 'Literal' (or of a specific subclass of it, such as 'Tag'), connecting them when refer to the same literal value. Writing the previous example down in a Turtle format, we could have: <http://en.wikipedia.org/wiki/Ulysses_%28novel%29> a foaf:Document ; prism:keyword :parisTag1 . <http://en.wikipedia.org/wiki/Paris_Hilton> a foaf:Document ; prism:keyword :parisTag2 . :parisTag1 a litre:Literal ; litre:hasLiteralValue "Paris" ; a [ a skos:Concept ; skos:definition "the name associated to a particular city"@en ] . :parisTag2 a litre:Literal ; litre:hasSameLiteralValueAs :parisTag1 ; a [ a skos:Concept ; skos:definition "the first name of a person"@en ] . | ||
}} | }} | ||
{{Element list header}} | {{Element list header}} | ||
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{{Additional information header}} | {{Additional information header}} | ||
{{Scenarios about me}} | {{Scenarios about me}} | ||
| − | {{Reviews about me}}{{Modeling issues about me}}{{My references}} | + | {{Reviews about me}} |
| + | {{Modeling issues about me}} | ||
| + | {{My references}} | ||
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Last modified date is: 2010-08-10 |
Diagram
The Literal Reification Content OP locally defines the following ontology elements:
No scenario is added to this Content OP.
This revision (revision ID 9809) takes in account the reviews: none
Other info at evaluation tab
'Ontology Design Patterns'
