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Bookmarking and Tagging a Webpage
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Bookmarking and Tagging a Webpage
In the context of the World Wide Web, a bookmark is a locally stored Uniform Resource Identifier (URI). All modern web browsers include bookmark features (source: Wikipedia). Typically the URI is associated with a textual descriptions (or name or label) for improving human readability. A Tag is a label attached to someone or something for identification or other information. Typically tags are created attaching a free text label to a resource. With the emergence of the Linked Open Data method, semantic tagging or tagging through URIs is gaining popularity.
Example of Bookmarking and Tagging a Webpage
We here represent the bookmarking and the semantic tagging of a Wikipedia page of the APP (Amyloid Precursor Protein) Protein with two entries - identified by URIs - from two different databases/ontologies.
Open Annotation Representation
The Target of the annotation is a Wikipedia page. The annotation displays several Bodies. One body is a textual label. The other two are oa:SemanticTag. The URIs used as Semantic Tags are linked to the resource through foaf:page.
The Annotation instance exhibits an oa:annotatedBy - the agent responsible for entering the information that is used to generate the Annotation - and a oa:serializedBy - the agent, likely software, generating the serialization of the Annotation's graph. Annotation and generation dates are also associated.
In RDF format:
ex:anno a oa:Annotation ; oa:motivatedBy oa:bookmarking ; oa:hasTarget <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> ; oa:hasBody ex:uuid ; oa:hasBody ex:semtag1 ; oa:hasBody ex:semtag2 ; oa:annotatedBy ex:person1 ; oa:annotatedAt "2012-02-12T15:02:14Z" ; oa:serializedBy ex:software1 ; oa:serializedAt "2012-02-12T15:02:14Z" . <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> a dctypes:Text ; dc:format "text/html" . ex:uuid a cnt:ContentAsText ; cnt:chars "Amyloid precursor protein (APP) on Wikipedia" ; cnt:characterEncoding "utf-8" . ex:semtag1 a oa:SemanticTag ; foaf:page MGI:88059 . MGI:88059 rdfs:label "amyloid beta (A4) precursor protein" . ex:semtag2 a oa:SemanticTag ; foaf:page OMIM:104760 . OMIM:104760 rdfs:label "AMYLOID BETA A4 PRECURSOR PROTEIN; APP" . ex:person1 a foaf:Person ; foaf:mbox <mailto:john.doe@example.org> ; foaf:name "John Doe" . ex:software1 a foaf:Agent, prov:SoftwareAgent ; foaf:name "ExAnnotator" .
Some SPARQL queries
Select all the annotations for the target http://en.wikipedia.org/wiki/Amyloid_precursor_protein
SELECT ?anno WHERE { ?anno oa:hasTarget <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> . } => ex:anno
or
SELECT ?anno WHERE { ?anno rdf:type oa:Annotation . ?anno oa:hasTarget <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> . } => ex:anno
Select all the annotations by ex:person1 for the target http://en.wikipedia.org/wiki/Amyloid_precursor_protein
SELECT ?anno WHERE { ?anno oa:hasTarget <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> . ?anno oa:annotator ex:person1 . } => ex:anno
Select all the annotations by ex:person1 that include semantic tags
SELECT ?anno WHERE { ?anno oa:annotator ex:Person1 . ?anno oa:hasBody ?tag . ?tag rdf:type oa:SemanticTag . } => ex:anno
Select all the semantic tags for the target http://en.wikipedia.org/wiki/Amyloid_precursor_protein
SELECT ?tag WHERE { ?anno a oa:Annotation . ?anno oa:hasTarget <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> . ?anno oa:hasBody ?tag . ?tag rdf:type oa:SemanticTag . } => semTag1, semTag2
Select all the pages for semantic tags on the target http://en.wikipedia.org/wiki/Amyloid_precursor_protein
SELECT ?page WHERE { ?anno a oa:Annotation . ?anno oa:hasTarget <http://en.wikipedia.org/wiki/Amyloid_precursor_protein> . ?anno oa:hasBody ?tag . ?tag rdf:type oa:SemanticTag . ?tag foaf:page ?page . } => MGI: 88059, OMIM:104760
Select all the annotation targets tagged with a semantic tag associated to a page OMIM:104760
SELECT ?target WHERE { ?anno oa:hasTarget ?target . ?anno oa:hasBody ?tag . ?tag foaf:page OMIM:104760 . ?tag rdf:type oa:SemanticTag. } => <http://alturl.com/wxidq>
Select semantic tags used together with a page OMIM:104760
SELECT ?tag WHERE { ?anno oa:hasBody ?tag . ?tag foaf:page ?page ?tag foaf:page OMIM:104760 . ?tag rdf:type oa:SemanticTag . } => semTag1, semTag2
CREATOR: Paolo Ciccarese |
LAST UPDATED: Feb 6, 2012 |