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SchemaWeb is/was a great resource. In particular, it provides a very useful web service to get the URL of the schema from its URI. However it hasn't been updated since 2007.

Whats the status of this site? is it able to be resurrected? Is there an alternative service (neither schemaCache or Swoogle are queriable by vocab URI and don't provide a service AFAIK)

Chris

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It's considered best practice to publish schemas with class and property URIs that are resolvable. This makes the specific web service you mentioned unnecessary. w3.org/TR/swbp-vocab-pub – cygri Jun 5 at 13:44

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You can search a namespace using Schemapedia, for example:

You'll be redirected to: http://schemapedia.com/schemas/daia which has the info you want.

See also:

The one you mentioned (just to have a sort of complete list):

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 schemapedia.com has a sparql service at api.talis.com/stores/schemapedia/services/sparql (although i intend to wrap that with a schemapedia.com hosted page) – Ian Davis Apr 19 at 20:01
While these are all useful vocab resources, especially schemapedia which is looking really comprehensive and up-to-date, and prefix.cc for converting between prefixes and namespace URIs, AFAIK none of them provide a link between a namespace URI and a document defining the vocabulary in RDF/XML. Authors don't have to provide such a document, and it could be in any RDF serialisation but it would be a good addition to schemapedia to include references where they are known (and surely all public vocabs should have such as definition? – Chris Wallace Apr 20 at 15:31
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 You can search the namespace on Schemapedia, for example: schemapedia.com/search?q=http://purl.org/ontology/… – castagna Apr 21 at 21:02

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