While tags are widely used in Web 2.0 services, their lack of machine-understandable meaning can be a problem for information retrieval, especially when people use tags that can have different meanings depending on the context.
MOAT aims to solve this by providing a way for users to define meaning(s) of their tag(s) using URIs of Semantic Web resources (such as URIs from DBpedia, GeoNames, or any knowledge base), and then annotate content with those URIs rather than free-text tags, leveraging content into Semantic Web, by linking data together. Moreover, tag meanings can be shared between people, providing an architecture of participation to define and exchange potential meanings of tags within a community of users.
To achieve this goal, MOAT relies on an architecture that can be deployed for any organization or community and that involves a lightweight ontology, a MOAT server, and some third-party clients.
MOAT Server is a application that serves tag meanings (in HTML, JSON or RDF/XML, using content negotiation for any Tag you request. The server is shipped without any data, which means that users have first to define meanings for their tags (thanks to the clients they use, that will then update the server information) to efficiently use it, using data available on the Semantic Web, especially from the Linked Data initiative.
A Virtuoso instance that has one or more MOAT meanings is a valid MOAT server. When accessed the following URL, returns as result a valid MOAT RDF:
http://host:port/dataspace/tag/<tag-name>
For example http://myopenlink.net/dataspace/tag/test returns the MOAT RDF file:
<?xml version="1.0" encoding="utf-8"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:moat="http://moat-project.org/ns#" xmlns:foaf="http://xmlns.com/foaf/0.1/"> <moat:Tag rdf:about="http://myopenlink.net/dataspace/tag/test"> <moat:name><![CDATA[test]]></moat:name> </moat:Tag> </rdf:RDF>
http://tags.moat-project.org/
tagging
paris
paris
http://google.com?q=paris
and click the button "Add" or you can also click the "Import meanings" button.
This will cause a request to the entered from above MOAT server and will return as result if found meaning URLs for the relevant tag such as for example:
http://sws.geonames.org/2988507/ http://sws.geonames.org/4402 http://dbpedia.org/resource/Paris
paris
".
my blog test
this is my blog test for MOAT
paris
Associate your tags, in the current context, with one or more of the following things or concepts: ->paris
paris
".
my second blog test
Where is paris?
At the moment, you cannot stop Automatic Links only for a chosen string. You can turn them off for an entire post, by including the following tag anywhere in the article --
<no-auto-href />
OpenLink recommends that the author always place the <no-auto-href />
at the very end and/or the very beginning of a post, so it is easily visible to later editors.
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