Notes on RDF and URIs.
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.DS_Store
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.direnv
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.direnv
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result
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result
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notes/.obsidian.mobile
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notes/.obsidian.mobile
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"function-general.png",
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"function-general.png",
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"church-rosser.png",
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"church-rosser.png",
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"infinite-cartesian-product.png",
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"infinite-cartesian-product.png",
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"function-kernel.png"
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"function-kernel.png",
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"triple-table.png",
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"table-triple.png",
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"triple-table-repr.png"
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],
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],
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"File Hashes": {
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"File Hashes": {
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"algorithms/index.md": "3ac071354e55242919cc574eb43de6f8",
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"algorithms/index.md": "3ac071354e55242919cc574eb43de6f8",
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"_journal/2024-07/2024-07-12.md": "6603ed8a3f9a9e87bf40e81b03e96356",
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"_journal/2024-07/2024-07-12.md": "6603ed8a3f9a9e87bf40e81b03e96356",
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"hashing/static.md": "3ec6eaee73fb9b599700f5a56b300b83",
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"hashing/static.md": "3ec6eaee73fb9b599700f5a56b300b83",
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"hashing/addressing.md": "e97c1905cdf5787d94c857fb5f22be8a",
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"hashing/addressing.md": "e97c1905cdf5787d94c857fb5f22be8a",
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"ontology/index.md": "15e97e3e8068660314499fb4d1bdd53e",
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"ontology/index.md": "0994403dcd84415f1459752129b55f65",
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"ontology/permissivism.md": "643e815a79bc5c050cde9f996aa44ef5",
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"ontology/permissivism.md": "643e815a79bc5c050cde9f996aa44ef5",
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"ontology/properties.md": "91ece501551c444afcd119d7197958ef",
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"ontology/properties.md": "91ece501551c444afcd119d7197958ef",
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"_journal/2024-07-14.md": "9a74d2dd0f44db58e14f57c8908c3342",
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"_journal/2024-07-14.md": "9a74d2dd0f44db58e14f57c8908c3342",
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@ -649,6 +652,12 @@
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"_journal/2024-07/2024-07-26.md": "c167f734a5037e1a5537b1e95ca6790f",
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"_journal/2024-07/2024-07-26.md": "c167f734a5037e1a5537b1e95ca6790f",
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"_journal/2024-07-28.md": "2aafb514903eca2b842487c573c1753a",
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"_journal/2024-07-28.md": "2aafb514903eca2b842487c573c1753a",
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"_journal/2024-07/2024-07-27.md": "7c48690746d8320494e29e92390eb6ee"
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"_journal/2024-07/2024-07-27.md": "7c48690746d8320494e29e92390eb6ee"
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"ontology/rdf/index.md": "b9951dcc7a50d38e3238cb8c8dc1da07",
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"ontology/philosophy/permissivism.md": "643e815a79bc5c050cde9f996aa44ef5",
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"ontology/philosophy/nominalism.md": "46245c644238157e15c7cb6def27d90a",
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"ontology/philosophy/index.md": "09c1caab6733a4f13ae35f6898581653",
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"ontology/philosophy/dialetheism.md": "56dd05b38519f90c5cab93637978b3b3",
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"ontology/rdf/uri.md": "becfaeb0aeadca9eec4f19f7f8e907b8"
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},
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},
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"fields_dict": {
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"fields_dict": {
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"Basic": [
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"Basic": [
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---
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---
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title: Ontology
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title: Ontology
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TARGET DECK: Obsidian::H&SS
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FILE TAGS: ontology
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tags:
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- ontology
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---
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---
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## Overview
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Ontology is the philosophical study of being. Generally *things* are split into two broad categories: **abstract** and **concrete** things. These words are "terms of art" and their definition is not standardized in any way.
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%%ANKI
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Basic
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What did Quine declare as *the* ontological question?
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Back: "What is there?"
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Reference: Simon Hewitt, “A Cardinal Worry for Permissive Metaontology,” _Metaphysica_ 16, no. 2 (September 18, 2015): 159–65, [https://doi.org/10.1515/mp-2015-0009](https://doi.org/10.1515/mp-2015-0009).
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<!--ID: 1720912238054-->
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END%%
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%%ANKI
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Basic
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Who is attributed *the* ontological question?
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Back: Willard Van Orman Quine.
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Reference: Simon Hewitt, “A Cardinal Worry for Permissive Metaontology,” _Metaphysica_ 16, no. 2 (September 18, 2015): 159–65, [https://doi.org/10.1515/mp-2015-0009](https://doi.org/10.1515/mp-2015-0009).
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<!--ID: 1720912259767-->
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END%%
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%%ANKI
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Cloze
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{Ontology} is the {philosophical study of being}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720912238058-->
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END%%
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%%ANKI
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Cloze
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{Epistemology} is the {philosophical study of knowledge}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720912238062-->
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END%%
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%%ANKI
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Cloze
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{Taxonomy} is the {branch of science concerned with categorization}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720912238066-->
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END%%
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%%ANKI
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Cloze
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{Mereology} is the {philosophical study of part-whole relationships}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720998380912-->
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END%%
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%%ANKI
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Basic
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What does Effingham mean when saying "concreta" and "abstracta" are terms of art?
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Back: They are terms defined freely by a person to mean whatever one wants.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782942-->
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END%%
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%%ANKI
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Cloze
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In general, ontologists often categorize things as either {concreta} or {abstracta}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782951-->
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END%%
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%%ANKI
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Basic
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Generally speaking, what does someone *probably* mean by "concrete" things?
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Back: Things that exists in space and/or time.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782957-->
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END%%
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%%ANKI
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Basic
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Generally speaking, what does someone *probably* mean by "abstract" things?
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Back: Things that exist in neither space nor time.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782965-->
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END%%
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%%ANKI
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Basic
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Is a material object considered concreta?
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Back: Usually.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782971-->
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END%%
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%%ANKI
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Basic
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Is an immaterial object considered concreta?
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Back: Possibly.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782978-->
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END%%
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%%ANKI
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Basic
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Is a material object considered abstracta?
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Back: Not usually.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782984-->
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END%%
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%%ANKI
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Basic
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Is an immaterial object considered abstracta?
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Back: Possibly.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782989-->
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END%%
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## Bibliography
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* Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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* Simon Hewitt, “A Cardinal Worry for Permissive Metaontology,” _Metaphysica_ 16, no. 2 (September 18, 2015): 159–65, [https://doi.org/10.1515/mp-2015-0009](https://doi.org/10.1515/mp-2015-0009).
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@ -1,14 +1,124 @@
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---
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---
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title: Properties
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title: Ontology
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TARGET DECK: Obsidian::H&SS
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TARGET DECK: Obsidian::H&SS
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FILE TAGS: ontology::property
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FILE TAGS: ontology::philosophy
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tags:
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tags:
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- ontology
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- ontology
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- property
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---
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---
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## Overview
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## Overview
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Ontology is the philosophical study of being. Generally *things* are split into two broad categories: **abstract** and **concrete** things. These words are "terms of art" and their definition is not standardized in any way.
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%%ANKI
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Basic
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What did Quine declare as *the* ontological question?
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Back: "What is there?"
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Reference: Simon Hewitt, “A Cardinal Worry for Permissive Metaontology,” _Metaphysica_ 16, no. 2 (September 18, 2015): 159–65, [https://doi.org/10.1515/mp-2015-0009](https://doi.org/10.1515/mp-2015-0009).
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<!--ID: 1720912238054-->
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END%%
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%%ANKI
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Basic
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Who is attributed *the* ontological question?
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Back: Willard Van Orman Quine.
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Reference: Simon Hewitt, “A Cardinal Worry for Permissive Metaontology,” _Metaphysica_ 16, no. 2 (September 18, 2015): 159–65, [https://doi.org/10.1515/mp-2015-0009](https://doi.org/10.1515/mp-2015-0009).
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<!--ID: 1720912259767-->
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END%%
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%%ANKI
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Cloze
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{Ontology} is the {philosophical study of being}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720912238058-->
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END%%
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%%ANKI
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Cloze
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{Epistemology} is the {philosophical study of knowledge}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720912238062-->
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END%%
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%%ANKI
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Cloze
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{Taxonomy} is the {branch of science concerned with categorization}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720912238066-->
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END%%
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%%ANKI
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Cloze
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{Mereology} is the {philosophical study of part-whole relationships}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720998380912-->
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END%%
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%%ANKI
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Basic
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What does Effingham mean when saying "concreta" and "abstracta" are terms of art?
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Back: They are terms defined freely by a person to mean whatever one wants.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782942-->
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END%%
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%%ANKI
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Cloze
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In general, ontologists often categorize things as either {concreta} or {abstracta}.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782951-->
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END%%
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%%ANKI
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Basic
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Generally speaking, what does someone *probably* mean by "concrete" things?
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Back: Things that exists in space and/or time.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782957-->
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END%%
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%%ANKI
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Basic
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Generally speaking, what does someone *probably* mean by "abstract" things?
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Back: Things that exist in neither space nor time.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782965-->
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END%%
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%%ANKI
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Basic
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Is a material object considered concreta?
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Back: Usually.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782971-->
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END%%
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%%ANKI
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Basic
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Is an immaterial object considered concreta?
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Back: Possibly.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782978-->
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END%%
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%%ANKI
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Basic
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Is a material object considered abstracta?
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Back: Not usually.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782984-->
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END%%
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%%ANKI
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Basic
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Is an immaterial object considered abstracta?
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Back: Possibly.
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Reference: Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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<!--ID: 1720894782989-->
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END%%
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## Properties
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A **property** is an entity that can be predicated of things or, in other words, attributed to them.
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A **property** is an entity that can be predicated of things or, in other words, attributed to them.
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%%ANKI
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%%ANKI
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@ -19,7 +129,7 @@ Reference: Francesco Orilia and Michele Paolini Paoletti, “Properties,” in _
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<!--ID: 1720912237900-->
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<!--ID: 1720912237900-->
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END%%
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END%%
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## Instantiation
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### Instantiation
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An entity is said to **instantiate** a property if said entity bears a connection to the property. For example, a human instantiates the property of *being human* and a man instantiates the properties of *being human* and *being a man*.
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An entity is said to **instantiate** a property if said entity bears a connection to the property. For example, a human instantiates the property of *being human* and a man instantiates the properties of *being human* and *being a man*.
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* Francesco Orilia and Michele Paolini Paoletti, “Properties,” in _The Stanford Encyclopedia of Philosophy_, ed. Edward N. Zalta, Spring 2022 (Metaphysics Research Lab, Stanford University, 2022), [https://plato.stanford.edu/archives/spr2022/entries/properties/](https://plato.stanford.edu/archives/spr2022/entries/properties/).
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* Francesco Orilia and Michele Paolini Paoletti, “Properties,” in _The Stanford Encyclopedia of Philosophy_, ed. Edward N. Zalta, Spring 2022 (Metaphysics Research Lab, Stanford University, 2022), [https://plato.stanford.edu/archives/spr2022/entries/properties/](https://plato.stanford.edu/archives/spr2022/entries/properties/).
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* Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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* Nikk Effingham, _An Introduction to Ontology_ (Cambridge: Polity Press, 2013).
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* Simon Hewitt, “A Cardinal Worry for Permissive Metaontology,” _Metaphysica_ 16, no. 2 (September 18, 2015): 159–65, [https://doi.org/10.1515/mp-2015-0009](https://doi.org/10.1515/mp-2015-0009).
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---
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title: RDF
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TARGET DECK: Obsidian::STEM
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FILE TAGS: ontology::rdf
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tags:
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- ontology
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- rdf
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---
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## Overview
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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|URIs]] (or, more generally, IRIs). These URIs can be expressed more compactly as [[uri#CURIEs|CURIEs]].
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%%ANKI
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Basic
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||||||
|
What is RDF an acronym for?
|
||||||
|
Back: **R**esource **D**escription **F**ramework.
|
||||||
|
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: 1722187893324-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%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.
|
||||||
|
<!--ID: 1722187893326-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%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.
|
||||||
|
<!--ID: 1722187893328-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%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.
|
||||||
|
<!--ID: 1722187893330-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What three components make up an RDF triple?
|
||||||
|
Back: The subject, predicate, and verb.
|
||||||
|
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: 1722187893332-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%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.
|
||||||
|
<!--ID: 1722187893333-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Cloze
|
||||||
|
A {subject} is to RDF as a recordt is to a relation.
|
||||||
|
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: 1722187893334-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Cloze
|
||||||
|
A {predicate} is to RDF as an attribute is to a relation.
|
||||||
|
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: 1722187893335-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Cloze
|
||||||
|
An {object} is to RDF as a value is to a relation.
|
||||||
|
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: 1722187893337-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
Consider converting the following table to a triple. What is the subject?
|
||||||
|
![[triple-table-repr.png]]
|
||||||
|
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.
|
||||||
|
<!--ID: 1722188525589-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
Consider converting the following table to a triple. What is the object?
|
||||||
|
![[triple-table-repr.png]]
|
||||||
|
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.
|
||||||
|
<!--ID: 1722188525594-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
Consider converting the following table to a triple. What is the predicate?
|
||||||
|
![[triple-table-repr.png]]
|
||||||
|
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.
|
||||||
|
<!--ID: 1722188525598-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
RDF identifiers are represented using what?
|
||||||
|
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.
|
||||||
|
<!--ID: 1722191359882-->
|
||||||
|
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.
|
||||||
|
|
@ -0,0 +1,239 @@
|
||||||
|
---
|
||||||
|
title: Uniform Resource Identifiers
|
||||||
|
TARGET DECK: Obsidian::STEM
|
||||||
|
FILE TAGS: uri
|
||||||
|
tags:
|
||||||
|
- rdf
|
||||||
|
- uri
|
||||||
|
---
|
||||||
|
|
||||||
|
## Overview
|
||||||
|
|
||||||
|
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.
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What is URI an acronym for?
|
||||||
|
Back: **U**niform **r**esource **i**dentifier.
|
||||||
|
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: 1722191359864-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
*Why* is a URI named the way it is?
|
||||||
|
Back: It is a globally unique identifier for some resource.
|
||||||
|
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: 1722191359866-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What is IRI an acronym for?
|
||||||
|
Back: **I**nternationalized **r**esource **i**dentifier.
|
||||||
|
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: 1722191359867-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
In what way does an IRI generalize URIs?
|
||||||
|
Back: It allows any characters with standard web encodings to be used in the 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: 1722191359871-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
Which of URIs or IRIs are more general?
|
||||||
|
Back: IRIs.
|
||||||
|
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: 1722191359873-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
### URLs
|
||||||
|
|
||||||
|
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`.
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What is URL an acronym for?
|
||||||
|
Back: **U**niform **r**esource **l**ocator.
|
||||||
|
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: 1722191359858-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
*Why* is a URL named the way it is?
|
||||||
|
Back: Its structure specifies how to find the corresponding resource.
|
||||||
|
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: 1722191359861-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
How do you find the resource represented by a URI?
|
||||||
|
Back: N/A. This isn't generally possible.
|
||||||
|
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: 1722191359863-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
In what way does a URI generalize URLs?
|
||||||
|
Back: A URI does not necessarily specify how to find the represented resource.
|
||||||
|
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: 1722191359869-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
Which of URIs or URLs are more general?
|
||||||
|
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.
|
||||||
|
<!--ID: 1722191359872-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
Which of IRIs or URLs are more general?
|
||||||
|
Back: IRIs.
|
||||||
|
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: 1722191359874-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What scheme are URLs required to use?
|
||||||
|
Back: N/A. There exist many possible schemes.
|
||||||
|
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).
|
||||||
|
<!--ID: 1722193197739-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What are the two most commonly used URL schemes?
|
||||||
|
Back: `http` and `https`.
|
||||||
|
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).
|
||||||
|
<!--ID: 1722193197746-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
### URNs
|
||||||
|
|
||||||
|
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.
|
||||||
|
|
||||||
|
%%ANKI
|
||||||
|
Basic
|
||||||
|
What is URN an acronym for?
|
||||||
|
Back: **U**niform **r**esource **n**ame.
|
||||||
|
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: 1722192211078-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%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-->
|
||||||
|
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-->
|
||||||
|
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-->
|
||||||
|
END%%
|
||||||
|
|
||||||
|
%%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: CURIE.
|
||||||
|
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**&.
|
||||||
|
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%%
|
||||||
|
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## Bibliography
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* 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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* “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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* “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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* “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).
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