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![many dialects of XML are in use <ccxml version="1.0" xmlns="http://www.w3.org/2002/09/ccxml"> <eventprocessor> <transition event="connection.alerting" name="evt"> <log expr="'The number called is' + evt.connection.remote + '.'"/> <if cond="evt.connection.remote == 'tel:+18315551234'"> <log expr="'Go away! we do not want to answer the phone.'"/> <reject/> <else/> <log expr="'We like you! We are going to answer the call.'"/> <accept/> </if> </transition> <transition event="connection.connected"> <log expr="'Call was answered,Time to disconnect it.'"/> <disconnect/> </transition> <transition event="connection.disconnected"> <log expr="'Call has been disconnected. Ending CCXML Session.'"/> <exit/> </transition> </eventprocessor> </ccxml> <mroot> <mrow> <mn>1</mn> <mo>-</mo> <mfrac> <mi>x</mi> <mn>2</mn> </mfrac> </mrow> <mn>3</mn> </mroot> <users> <person login="fgandon" uid="19536"> <home>/net/user/fg</home> <pref>/sys/19536.inf</pref> <access_level>8</access_level> </person> <person login="fgandon" uid="19536"> <home>/net/user/fg</home> <pref>/sys/19536.inf</pref> <access_level>8</access_level> </person> </users> <p:pipeline name="fig2" xmlns:p="http://example.org/PipelineNamespace"> <p:input port="doc" sequence="no"/> <p:output port="out" step="xform" source="result"/> <p:choose name="vcheck" step="fig2" source="doc"> <p:when test="/*[@version < 2.0]"> <p:output name="valid" step="val1" source="result"/> <p:step type="p:validate" name="val1"> <p:input port="document" step="fig2" source="doc"/> <p:input port="schema" href="v1schema.xsd"/> </p:step> </p:when> <p:otherwise> <p:output name="valid" step="val2" source="result"/> <p:step type="p:validate" name="val2"> <p:input port="document" step="fig2" source="doc"/> <p:input port="schema" href="v2schema.xsd"/> </p:step> </p:otherwise> </p:choose> <p:step type="p:xslt" name="xform"> <p:input port="document" step="vcheck" source="valid"/> <p:input port="stylesheet" href="stylesheet.xsl"/> </p:step> </p:pipeline> <HTML> <HEAD> <TITLE>title</TITLE> <LINK REL=STYLESHEET TYPE="text/css" HREF="http://style.com/cool" TITLE="Cool"> </HEAD> <BODY> <H1>Headline is blue</H1> <P STYLE="color: green">While the paragraph is green. </BODY> </HTML>](https://image.slidesharecdn.com/grddl-in-a-nutshell-v1-11978216398116-5/85/Grddl-In-A-Nutshell-V1-8-320.jpg)
Uploaded byFabien Gandon
Grddl In A Nutshell V1
The document discusses GRDDL ( Gleaning Resource Descriptions from Dialects of Languages), which is an easy way to extract metadata from web pages in various formats like HTML and XML. It allows one to declare a web page or document as a source of data, link it to extractors that can glean semantic data from it, and then have GRDDL agents extract RDF descriptions from the document. This is done by adding GRDDL profiling and transformation links to declare the source and transformation that will be applied.
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Grddl In A Nutshell V1
- 1. GRDDL in anutshell fabien, gandon, inria
- 2. I want mydata back from my web pages.
- 3. many data inmy web page
- 4. I want your data back from your web pages.
- 5. many data inmany web pages
- 6. open your datato anyone who might use it W3C ©
- 7. deep web inparticular…
- 8. many dialects ofXML are in use <ccxml version="1.0" xmlns="http://www.w3.org/2002/09/ccxml"> <eventprocessor> <transition event="connection.alerting" name="evt"> <log expr="'The number called is' + evt.connection.remote + '.'"/> <if cond="evt.connection.remote == 'tel:+18315551234'"> <log expr="'Go away! we do not want to answer the phone.'"/> <reject/> <else/> <log expr="'We like you! We are going to answer the call.'"/> <accept/> </if> </transition> <transition event="connection.connected"> <log expr="'Call was answered,Time to disconnect it.'"/> <disconnect/> </transition> <transition event="connection.disconnected"> <log expr="'Call has been disconnected. Ending CCXML Session.'"/> <exit/> </transition> </eventprocessor> </ccxml> <mroot> <mrow> <mn>1</mn> <mo>-</mo> <mfrac> <mi>x</mi> <mn>2</mn> </mfrac> </mrow> <mn>3</mn> </mroot> <users> <person login="fgandon" uid="19536"> <home>/net/user/fg</home> <pref>/sys/19536.inf</pref> <access_level>8</access_level> </person> <person login="fgandon" uid="19536"> <home>/net/user/fg</home> <pref>/sys/19536.inf</pref> <access_level>8</access_level> </person> </users> <p:pipeline name="fig2" xmlns:p="http://example.org/PipelineNamespace"> <p:input port="doc" sequence="no"/> <p:output port="out" step="xform" source="result"/> <p:choose name="vcheck" step="fig2" source="doc"> <p:when test="/*[@version < 2.0]"> <p:output name="valid" step="val1" source="result"/> <p:step type="p:validate" name="val1"> <p:input port="document" step="fig2" source="doc"/> <p:input port="schema" href="v1schema.xsd"/> </p:step> </p:when> <p:otherwise> <p:output name="valid" step="val2" source="result"/> <p:step type="p:validate" name="val2"> <p:input port="document" step="fig2" source="doc"/> <p:input port="schema" href="v2schema.xsd"/> </p:step> </p:otherwise> </p:choose> <p:step type="p:xslt" name="xform"> <p:input port="document" step="vcheck" source="valid"/> <p:input port="stylesheet" href="stylesheet.xsl"/> </p:step> </p:pipeline> <HTML> <HEAD> <TITLE>title</TITLE> <LINK REL=STYLESHEET TYPE="text/css" HREF="http://style.com/cool" TITLE="Cool"> </HEAD> <BODY> <H1>Headline is blue</H1> <P STYLE="color: green">While the paragraph is green. </BODY> </HTML>
- 9. resources many waysto weave data with the web
- 10. embedding explicit severalinitiatives to make data
- 11. your data GRRDL = an easy way to open
- 12. XML data GRRDL = an easy way to extract RDF from http://www.flickr.com/photos/cho45/1402634073/
- 13.
- 14. guitar, Stephan wishesto buy a
- 15. reviews, he visitsa site offering
- 16. reviews & profileshe uses GRDDL to aggregate
- 17.
- 18. GRDDL step 1declare a document is a source
- 19. GRDDL step 2link it to one or more extractors
- 20. GRDDL step 3let GRDDL agents extract RDF from the document
- 21. generic profile declarean XHTML document is a source <head profile="http://www.w3.org/2003/g/data-view" > <title>The man who mistook his wife for a hat</title> <link rel="transformation" href="http://www.w3.org/2000/06/ dc-extract/dc-extract.xsl" /> <meta name="DC.Subject" content="clinical tales" /> … </head>
- 22. transformation link anXHTML document to a <head profile="http://www.w3.org/2003/g/data-view"> <title>The man who mistook his wife for a hat</title> < link rel="transformation" href="http://www.w3.org/2000/06/ dc-extract/dc-extract.xsl" /> <meta name="DC.Subject" content="clinical tales" /> … </head>
- 23. GRDDL agent whatis extracted by a standard <head profile="http://www.w3.org/2003/g/data-view"> <title> The man who mistook his wife for a hat </title> <link rel="transformation" href="http://www.w3.org/2000/06/ dc-extract/dc-extract.xsl" /> < meta name="DC.Subject" content="clinical tales" /> … </head> # dc:title "The man who mistook his wife for a hat" # dc:subject "clinical tales"
- 24. custom profile declarea source and a transformation at once
- 25. custom profile notransformation, just reference the <head profile="http://purl.org/NET/erdf/profile" > <title>Fabien’s agenda</title> (…) </head>
- 26. transformation profile document= GRDDL source giving the <html xmlns="http://www.w3.org/1999/xhtml"> <head profile="http://www.w3.org/2003/g/data-view" > <link rel="transformation" href=" http://www.w3.org/2003/g/glean-profile " /> </head> <body> <p> <a rel="profileTransformation" href="http://purl.org/NET/erdf/extract-rdf">GRDDL transform</a> </p> </body> </html>
- 27. XML document declarea source and a transformation for an
- 28. generic profile declarean XML document is a source <book xmlns="http://example.org/book/" xmlns:grddl="http://www.w3.org/2003/g/data-view#" grddl:transformation=" http://example.org/book/getAuthor.xsl " > <title>The man who mistook his wife for a hat</title> … </book>
- 29. transformation link anXML document to a <book xmlns="http://example.org/book/" xmlns:grddl="http://www.w3.org/2003/g/data-view#" grddl:transformation=" http://example.org/book/getAuthor.xsl " > <title>The man who mistook his wife for a hat</title> … </book>
- 30.
- 31. Don't bury yourdata in some HTML page or XML document
- 32. data… when youpublish a document that contains
- 33. do reference GRDDLprofiles and/or transformations
- 34.