540 lines
24 KiB
Markdown
540 lines
24 KiB
Markdown
---
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title: Uniform Resource Identifiers
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TARGET DECK: Obsidian::STEM
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FILE TAGS: uri
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tags:
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- uri
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---
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## Overview
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A **uniform resource identifier** (URI) is a unique sequence of characters for identifying some physical or abstract resource. URIs are further generalized to **internationalized resource identifier**s (IRIs) which allow using characters from any language, provided there exists a standard web encoding of the characters.
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%%ANKI
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Basic
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What is URI an acronym for?
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Back: **U**niform **r**esource **i**dentifier.
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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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<!--ID: 1722191359864-->
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END%%
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%%ANKI
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Basic
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*Why* is a URI named the way it is?
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Back: It is a globally unique identifier for some resource.
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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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<!--ID: 1722191359866-->
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END%%
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%%ANKI
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Basic
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What is IRI an acronym for?
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Back: **I**nternationalized **r**esource **i**dentifier.
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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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<!--ID: 1722191359867-->
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END%%
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%%ANKI
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Basic
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In what way does an IRI generalize URIs?
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Back: It allows any characters with standard web encodings to be used in the identifier.
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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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<!--ID: 1722191359871-->
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END%%
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%%ANKI
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Basic
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Which of URIs or IRIs are more general?
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Back: IRIs.
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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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<!--ID: 1722191359873-->
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END%%
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The URI generic syntax consists of five components organized hierarchically in order of decreasing significance from left to right:
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```
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<scheme>:[//<authority>]<path>[?<query>][#<fragment>]
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```
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where the `<authority>` is further composed as
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```
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[<userinfo>@]<host>[:<port>]
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```
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%%ANKI
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Cloze
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A URI has the following generic syntax:
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{`<scheme>`}`:`{`[//<authority>]`}{`<path>`}{`[?<query>]`}{`[#<fragment>]`}.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722211276499-->
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END%%
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%%ANKI
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Basic
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Which two components of a URI are required?
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Back: The scheme and the path.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722211744659-->
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END%%
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%%ANKI
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Basic
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Which three components of a URI are optional?
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Back: The authority, query, and fragment.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722211744664-->
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END%%
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%%ANKI
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Basic
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How many top-level components make up a URI's generic syntax?
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Back: Five.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201375-->
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END%%
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%%ANKI
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Basic
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What is the associated delimiter of a URI's authority?
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Back: `//`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201382-->
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END%%
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%%ANKI
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Basic
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What is the associated delimiter of a URI's query?
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Back: `?`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201386-->
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END%%
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%%ANKI
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Basic
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What is the associated delimiter of a URI's scheme?
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Back: N/A.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201389-->
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END%%
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%%ANKI
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Basic
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What is the associated delimiter of a URI's fragment?
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Back: `#`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201393-->
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END%%
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%%ANKI
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Basic
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What is the associated delimiter of a URI's path?
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Back: N/A.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201397-->
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END%%
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%%ANKI
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Basic
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When is a URI's component considered "undefined"?
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Back: When its associated delimiter is not present in the URI.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201402-->
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END%%
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%%ANKI
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Basic
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Which URI components are always defined?
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Back: The scheme and the path.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201407-->
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END%%
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%%ANKI
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Basic
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What delimiter separates the segments of a path?
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Back: `/`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201412-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what scheme? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: `http`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201466-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what authority? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: `//www.example.com`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201450-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what userinfo? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212472982-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what port? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212472988-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what host? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: `www.example.com`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212472995-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what path? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: `/questions/3456/my-document`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201416-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what query? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201460-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what fragment? $$\text{http://www.example.com/questions/3456/my-document}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212201472-->
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END%%
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%%ANKI
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Cloze
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The authority of a URI has the following generic syntax:
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{`[<userinfo>@]`}{`<host>`}{`[:<port>]`}
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722211744669-->
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END%%
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%%ANKI
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Basic
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Which two components of a URI's authority is optional?
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Back: The user info and port.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722211744675-->
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END%%
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%%ANKI
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Basic
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Which component of a URI's authority is required?
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Back: The host.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722211744680-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what scheme? $$\text{ldap://[2001:db8::7]/c=GB?objectClass?one}$$
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Back: `ldap`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212473001-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what fragment? $$\text{ldap://[2001:db8::7]/c=GB?objectClass?one}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790216-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what authority? $$\text{ldap://[2001:db8::7]/c=GB?objectClass?one}$$
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Back: `[2001:db8::7]`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790223-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what query? $$\text{ldap://[2001:db8::7]/c=GB?objectClass?one}$$
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Back: `objectClass?one`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790228-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what path? $$\text{ldap://[2001:db8::7]/c=GB?objectClass?one}$$
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Back: `/c=GB`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790232-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what scheme? $$\text{tel:+1-816-555-1212}$$
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Back: `tel`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790236-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what authority? $$\text{tel:+1-816-555-1212}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790241-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what path? $$\text{tel:+1-816-555-1212}$$
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Back: `+1-816-555-1212`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790247-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what query? $$\text{tel:+1-816-555-1212}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790252-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what fragment? $$\text{tel:+1-816-555-1212}$$
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Back: N/A. It is undefined.
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790258-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what scheme? $$\text{telnet://192.0.2.16:80/}$$
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Back: `telnet`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790265-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what authority? $$\text{telnet://192.0.2.16:80/}$$
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Back: `192.0.2.16:80`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790272-->
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END%%
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%%ANKI
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Basic
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The following URI specifies what path? $$\text{telnet://192.0.2.16:80/}$$
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Back: `/`
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Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
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<!--ID: 1722212790279-->
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END%%
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### URLs
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A **uniform resource locator** (URL) is a URI that specifies the means of finding the represented resource. The most commonly used schemes are `http` and `https`.
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%%ANKI
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Basic
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What is URL an acronym for?
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Back: **U**niform **r**esource **l**ocator.
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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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<!--ID: 1722191359858-->
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END%%
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%%ANKI
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Basic
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*Why* is a URL named the way it is?
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Back: Its structure specifies how to find the corresponding resource.
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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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<!--ID: 1722191359861-->
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END%%
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%%ANKI
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Basic
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How do you find the resource represented by a URI?
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Back: N/A. This isn't generally possible.
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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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<!--ID: 1722191359863-->
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END%%
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%%ANKI
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Basic
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In what way does a URI generalize URLs?
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Back: A URI does not necessarily specify how to find the represented resource.
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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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<!--ID: 1722191359869-->
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END%%
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%%ANKI
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Basic
|
|
Which of URIs or URLs are more general?
|
|
Back: URIs.
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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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<!--ID: 1722191359872-->
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END%%
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%%ANKI
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Basic
|
|
Which of IRIs or URLs are more general?
|
|
Back: IRIs.
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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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<!--ID: 1722191359874-->
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END%%
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%%ANKI
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|
Basic
|
|
What scheme are URLs required to use?
|
|
Back: N/A. There exist many possible schemes.
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|
Reference: “Uniform Resource Locator.” In _Wikipedia_, June 20, 2024. [https://en.wikipedia.org/w/index.php?title=URL](https://en.wikipedia.org/w/index.php?title=URL&oldid=1230124093).
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<!--ID: 1722193197739-->
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END%%
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%%ANKI
|
|
Basic
|
|
What are the two most commonly used URL schemes?
|
|
Back: `http` and `https`.
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|
Reference: “Uniform Resource Locator.” In _Wikipedia_, June 20, 2024. [https://en.wikipedia.org/w/index.php?title=URL](https://en.wikipedia.org/w/index.php?title=URL&oldid=1230124093).
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<!--ID: 1722193197746-->
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END%%
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### URNs
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A **uniform resource name** (URN) is a URI that uses the `urn` scheme. It is intended to uniquely identify a resource, even when the resource no longer exists.
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%%ANKI
|
|
Basic
|
|
What is URN an acronym for?
|
|
Back: **U**niform **r**esource **n**ame.
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|
Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
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<!--ID: 1722192211078-->
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END%%
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%%ANKI
|
|
Basic
|
|
*Why* is a URN named the way it is?
|
|
Back: It is used to uniquely identify some resource.
|
|
Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
|
<!--ID: 1722192211083-->
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|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
Which of URLs or URNs are more general?
|
|
Back: N/A.
|
|
Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
|
<!--ID: 1722192211087-->
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|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
Which of URNs or URIs are more general?
|
|
Back: URIs.
|
|
Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
|
<!--ID: 1722192211089-->
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|
END%%
|
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|
%%ANKI
|
|
Basic
|
|
*Why* aren't URLs a subset of URNs?
|
|
Back: What a URL represents may change over time.
|
|
Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
|
<!--ID: 1722192211091-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
*Why* aren't URNs a subset of URLs?
|
|
Back: Their structure may not necessarily indicate how to find the resource.
|
|
Reference: “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
|
<!--ID: 1722192211093-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
What scheme are URNs required to use?
|
|
Back: `urn`
|
|
Reference: “Uniform Resource Name.” In _Wikipedia_, April 26, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Name](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Name&oldid=1220954593).
|
|
<!--ID: 1722193197751-->
|
|
END%%
|
|
|
|
## CURIEs
|
|
|
|
A **compact URI** (CURIE) is a denser representation of URIs. In its simplest form, it consists of a namespace and identifier separated by a colon. For example, `geo:England`.
|
|
|
|
%%ANKI
|
|
Basic
|
|
URIs in RDF are usually represented in what condensed format?
|
|
Back: CURIEs.
|
|
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.
|
|
<!--ID: 1722191359875-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
What is CURIE an acronym for?
|
|
Back: **C**ompact **URI**s.
|
|
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.
|
|
<!--ID: 1722191359876-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
Consider CURIE `geo:England`. What is `geo` an example of?
|
|
Back: A namespace.
|
|
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.
|
|
<!--ID: 1722191359877-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
Consider CURIE `geo:England`. What is `England` an example of?
|
|
Back: An identifier.
|
|
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.
|
|
<!--ID: 1722191359878-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
In its simplest form, a CURIE is made up of what two parts?
|
|
Back: A namespace and an identifier.
|
|
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.
|
|
<!--ID: 1722191359880-->
|
|
END%%
|
|
|
|
%%ANKI
|
|
Basic
|
|
The namespace and identifier of a CURIE is usually separated by what?
|
|
Back: A colon (`:`).
|
|
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.
|
|
<!--ID: 1722191359881-->
|
|
END%%
|
|
|
|
## 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.
|
|
* “Uniform Resource Identifier.” In _Wikipedia_, July 22, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Identifier&oldid=1235957234).
|
|
* “Uniform Resource Locator.” In _Wikipedia_, June 20, 2024. [https://en.wikipedia.org/w/index.php?title=URL](https://en.wikipedia.org/w/index.php?title=URL&oldid=1230124093).
|
|
* “Uniform Resource Name.” In _Wikipedia_, April 26, 2024. [https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Name](https://en.wikipedia.org/w/index.php?title=Uniform_Resource_Name&oldid=1220954593). |