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01-28-2010, 11:47 AM
Basic Information About RDFA
The best place to begin your studies of RDFa is by learning the basics with the W3C RDFa Primer (http://www.w3.org/TR/xhtml-rdfa-primer/).
Here is another introduction to using RDFa (http://www.xml.com/lpt/a/1691):
XML.com: Introducing RDFa (http://www.xml.com/lpt/a/1691)
Once you have got your head around everything RDFa you can begin to test your work with the RDFa Distiller and Parser (http://www.w3.org/2007/08/pyRdfa/).
This page will help you get a grasp of using RDFa Syntax (http://www.w3.org/TR/rdfa-syntax/).
RDFa in XHTML: Syntax and Processing (http://www.w3.org/TR/rdfa-syntax/)
RDFa And Images Licenses:
Users can now license images they own using RDFa (http://www.youtube.com/watch?v=quyhasVn2jw&feature=player_embedded). The procedure is simple and should be utilized as much as possible. Note this does not apply to images related to layout.
YouTube - Specifying an image's license using RDFa (http://www.youtube.com/watch?v=quyhasVn2jw&feature=player_embedded)
There is a feature on Google’s Advanced Image Search (http://images.google.com/advanced_image_search) that enables one to search images based on their license type. One reason for searching images based on license type would be for example if you wanted to search for images you can use for free, without paying a license fee. This particular search would fall under the Creative Commons license (http://creativecommons.org/).
If You Own The Images:
If you own the image and want your image to be found and reused across different domains on your own terms the Creative Commons license allows you to specify the terms of use for your images ie. general use, non-commercial use, the right to modify the image or not or remix them. As mentioned in the link below once a license has been applied Google will help people find those images.
The kind of licenses Google Image Search allows you to search from are the following:
a. not filtered by license
b. labeled for reuse
c. labeled for commercial reuse
d. labeled for reuse and modification
e. labeled for commercial reuse and modification
Official Google Blog: Find Creative Commons images with Image Search (http://googleblog.blogspot.com/2009/07/find-creative-commons-images-with-image.html)
Tutorial showing you how to apply an image license to your images:
Using RDFa to Provide License Information to Google Image Search | webBackplane (http://webbackplane.com/mark-birbeck/blog/2009/08/using-rdfa-to-provide-license-information-to-google-image-search)
Here is an RFDa license generator (http://creativecommons.org/choose/) that will help you choose the right license for your work: Choose a License (http://creativecommons.org/choose/)
This page has some useful points to consider before you license your work (http://wiki.creativecommons.org/Before_Licensing):
Before Licensing - CC Wiki (http://wiki.creativecommons.org/Before_Licensing)
Here is a very detailed example of using RDFa to describe images (http://esw.w3.org/topic/ImageDescriptionRdfExamples).
ImageDescriptionRdfExamples - ESW Wiki (http://esw.w3.org/topic/ImageDescriptionRdfExamples)
RDFa parsing, Querying and Generation:
On the other end of the RDFa spectrum are the programmers who want to query, parse and regenerate information from RDFa documents.
Some places to help you start building applications that do this job for you are the following:
It seems the most popular means of querying RDFa documents is through the use of SPARQL.
SPARQL Query Language for RDF (http://www.w3.org/TR/rdf-sparql-query/) – this is Wikipedia’s entry for SPARQL (http://en.wikipedia.org/wiki/SPARQL) with examples and references such as:
a. SPARQL Query language (http://www.w3.org/TR/rdf-sparql-query/)
b. SPARQL Protocol (http://www.w3.org/TR/rdf-sparql-protocol/)
c. SPARQL Query XML Results Format (http://www.w3.org/TR/rdf-sparql-XMLres/)
d. SPARQL Tutorial (http://openjena.org/ARQ/Tutorial/index.html)
e. Your first SPARQL Query (http://jena.sourceforge.net/ARQ/Tutorial/query1.html)
There are also a number of other means of querying RDFa documents listed below.
a. rdfquery (http://code.google.com/p/rdfquery/)
b. ubiquity-rdfa (http://code.google.com/p/ubiquity-rdfa/)
c. using Javascript for RDFa (http://www.w3.org/2006/07/SWD/RDFa/impl/js/)
Now this post certainly doesn’t encompass the RDFa in it’s entirety. There are a few other students like myself of RDFa that frequent this board and I invite you to add your own information to this thread so we can build a decent resource for the visitors of WebProWorld.com who want to get started witn RDFa. It’s the future of the semantic web and the quicker us web developers and SEOs get used to using RDFa the better and more professional the web and our work will be.
I also just found, read and listened to an excellent article that gives a really good, clear and concise explanation of how RDFa and RichSnippets help in the search enginges.
http://radar.oreilly.com/2009/05/google-adds-microformat-parsin.html
Please, share your own RDFa and related resources.
The best place to begin your studies of RDFa is by learning the basics with the W3C RDFa Primer (http://www.w3.org/TR/xhtml-rdfa-primer/).
Here is another introduction to using RDFa (http://www.xml.com/lpt/a/1691):
XML.com: Introducing RDFa (http://www.xml.com/lpt/a/1691)
Once you have got your head around everything RDFa you can begin to test your work with the RDFa Distiller and Parser (http://www.w3.org/2007/08/pyRdfa/).
This page will help you get a grasp of using RDFa Syntax (http://www.w3.org/TR/rdfa-syntax/).
RDFa in XHTML: Syntax and Processing (http://www.w3.org/TR/rdfa-syntax/)
RDFa And Images Licenses:
Users can now license images they own using RDFa (http://www.youtube.com/watch?v=quyhasVn2jw&feature=player_embedded). The procedure is simple and should be utilized as much as possible. Note this does not apply to images related to layout.
YouTube - Specifying an image's license using RDFa (http://www.youtube.com/watch?v=quyhasVn2jw&feature=player_embedded)
There is a feature on Google’s Advanced Image Search (http://images.google.com/advanced_image_search) that enables one to search images based on their license type. One reason for searching images based on license type would be for example if you wanted to search for images you can use for free, without paying a license fee. This particular search would fall under the Creative Commons license (http://creativecommons.org/).
If You Own The Images:
If you own the image and want your image to be found and reused across different domains on your own terms the Creative Commons license allows you to specify the terms of use for your images ie. general use, non-commercial use, the right to modify the image or not or remix them. As mentioned in the link below once a license has been applied Google will help people find those images.
The kind of licenses Google Image Search allows you to search from are the following:
a. not filtered by license
b. labeled for reuse
c. labeled for commercial reuse
d. labeled for reuse and modification
e. labeled for commercial reuse and modification
Official Google Blog: Find Creative Commons images with Image Search (http://googleblog.blogspot.com/2009/07/find-creative-commons-images-with-image.html)
Tutorial showing you how to apply an image license to your images:
Using RDFa to Provide License Information to Google Image Search | webBackplane (http://webbackplane.com/mark-birbeck/blog/2009/08/using-rdfa-to-provide-license-information-to-google-image-search)
Here is an RFDa license generator (http://creativecommons.org/choose/) that will help you choose the right license for your work: Choose a License (http://creativecommons.org/choose/)
This page has some useful points to consider before you license your work (http://wiki.creativecommons.org/Before_Licensing):
Before Licensing - CC Wiki (http://wiki.creativecommons.org/Before_Licensing)
Here is a very detailed example of using RDFa to describe images (http://esw.w3.org/topic/ImageDescriptionRdfExamples).
ImageDescriptionRdfExamples - ESW Wiki (http://esw.w3.org/topic/ImageDescriptionRdfExamples)
RDFa parsing, Querying and Generation:
On the other end of the RDFa spectrum are the programmers who want to query, parse and regenerate information from RDFa documents.
Some places to help you start building applications that do this job for you are the following:
It seems the most popular means of querying RDFa documents is through the use of SPARQL.
SPARQL Query Language for RDF (http://www.w3.org/TR/rdf-sparql-query/) – this is Wikipedia’s entry for SPARQL (http://en.wikipedia.org/wiki/SPARQL) with examples and references such as:
a. SPARQL Query language (http://www.w3.org/TR/rdf-sparql-query/)
b. SPARQL Protocol (http://www.w3.org/TR/rdf-sparql-protocol/)
c. SPARQL Query XML Results Format (http://www.w3.org/TR/rdf-sparql-XMLres/)
d. SPARQL Tutorial (http://openjena.org/ARQ/Tutorial/index.html)
e. Your first SPARQL Query (http://jena.sourceforge.net/ARQ/Tutorial/query1.html)
There are also a number of other means of querying RDFa documents listed below.
a. rdfquery (http://code.google.com/p/rdfquery/)
b. ubiquity-rdfa (http://code.google.com/p/ubiquity-rdfa/)
c. using Javascript for RDFa (http://www.w3.org/2006/07/SWD/RDFa/impl/js/)
Now this post certainly doesn’t encompass the RDFa in it’s entirety. There are a few other students like myself of RDFa that frequent this board and I invite you to add your own information to this thread so we can build a decent resource for the visitors of WebProWorld.com who want to get started witn RDFa. It’s the future of the semantic web and the quicker us web developers and SEOs get used to using RDFa the better and more professional the web and our work will be.
I also just found, read and listened to an excellent article that gives a really good, clear and concise explanation of how RDFa and RichSnippets help in the search enginges.
http://radar.oreilly.com/2009/05/google-adds-microformat-parsin.html
Please, share your own RDFa and related resources.