Site Summaries in XHTML is a cost-effective way to formalize our news metadata.
<html xmlns="http://www.w3.org/1999/xhtml"> <head profile="http://www.w3.org/2000/08/w3c-synd/#"> ... </head> <body> ... <div id="x200501110b" class="item"> <h3><img alt="" width="17" height="11" src="/Icons/right" />Policy for Authorized W3C Translations Announced</h3> <p><span class="date">2005-11-10:</span> W3C is pleased to announce...
... <item rdf:about="http://www.w3.org/News/2005#item158"> <title>Policy for Authorized W3C Translations Announced</title> <description>2005-11-10: W3C is pleased to announce ...
A person (or a machine) can "follow your nose" from the document to the transformation algorithm, to the data, to the definitions of the terms used in the data.
Use GRDDL to aggregate data from friends etc, then...
PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX c: <http://www.w3.org/2002/12/cal/icaltzd#> SELECT ?name, ?summary, ?when FROM <myFriendsBlogsData> WHERE { ?somebody foaf:name ?name; foaf:mbox ?mbox. ?event c:summary ?summary; c:dtstart ?ymd; c:attendee [ c:calAddress ?mbox ] }.
?name | ?summary | ?when |
---|---|---|
Tantek Çelik | Web 2.0 | 2005-10-05 |
Norm Walsh | XML 2005 | 2005-11-13 |
Dan Connolly | W3C tech plenary | 2006-02-27 |
See SPARQL Query Language for RDF W3C Working Draft Feb 2006, plus Norm's travel last year
PersonDay a owl:Class; s:subClassOf k:Entity; s:subClassOf [ owl:onProperty _city; owl:maxCardinality 1 ].
java -jar pellet.jar -inputFile ,mash.rdf -unsat Input file: ,mash.rdf OWL Species: Full DL Expressivity: ALCHIF(D) Consistent: No Reason: There is an anonymous individual X, identified by this path (file:...cal/mash/calbg#oct6 http://www.cyc.com/2004/06/04/cyc#temporallyIntersects X), which has more than 1 values for property file:...cal/mash/calbg#_city violating the cardinality restriction Time: 8784 ms (Loading: 6485 Preprocessing: 0 Species Validation: 2202 Consistency: 96 )
For details: see Semantic Web Data Integration with hCalendar and GRDDL, given Nov 2005 at XML 2005 in Atlanta
These slides: http://www.w3.org/2003/g/talk62/slides