This article introduces core Semantic Web concepts and standards and explains how to expose an LDAP directory as a service that Semantic Web applications can consume using the open source SquirrelRDF utility.
SemSol is a forthcoming Web development framework that uses Semantic Web technology to significantly increase productivity and flexibility for everyday Web programming.
Hmm, the description on the page sounds really promising. It uses hot things like SPARQL, RDF, microformats and so on.
Hope there will soon be some more information.
Just found another posting about DBpedia in a blog of one of the developers. It tells you a little bit more about the backgrounds of this great project.
Just read something about the following project:
DBpedia.org is a community effort to extract structured information from Wikipedia and to make this information available on the Web. DBpedia allows you to ask sophisticated queries against Wikipedia and to link other datasets on the Web to Wikipedia data.
Instead of searching the full-text of Wikipedia, it allows you to execute SPARQL-Queries on the data. With “the data” i mean RDF-Data. Because the goal of the DBpedia-project is to create a whole bunch of structured data out of the Wikipedia-texts.
A little search interface can be found at http://dbpedia.org/search/.
Oort is a toolkit for creating RDF-driven WSGI-compliant web applications.The purpose of this is to make it easy to create web views of RDF Graphs by using some declarative python programming.
Oort uses RDFLib, Paste and Genshi for the heaving lifting. Initial support for Template Plugins alá Buffet and TurboGears is included (but ain’t 100% full-proof yet).
Atomic is a client for the Queso Server. (Runs only on M$ Windows Boxes)
Ben Szekely has posted an example for accessing his Queso-Server with Apache Abdera. The important part is
AtomClient client = new AtomClient();
Entry postedEntry = client.post("http://abdera.watson.ibm.com:8080/atom/example", entry).getRoot();
where ‘entry’ is the Atom element.
Elias Torres, Wing Yung and Ben Szekely have created an ATOM-Server called Queso with a little interface using AJAX:
Queso is a J2EE-style application that implements the Atom Protocol specification currently in draft-09 atop an RDF server called Boca (the restaurant’s name is Boca Grande, a.k.a. Big Mouth) using Henry Story’s Atom OWL for the model and of course opening up a SPARQL endpoint to query the contents the store.
The actual data-storing takes place using RDF-Data. But the data is inserted by the user or the machine using Atom-syntax:
Content is inserted into the system is by posting Atom entries. The entries are stored as RDF (converted via Atom OWL by Henry Story), so their content and metadata is accessible via SPARQL queries. [...]
But test yourself under http://abdera.watson.ibm.com:8080/browser/. Its very rudimental so far, but looks promising.
Vorhin entdeckt, scheint es aber schon etwas länger zu geben. Ein Java-basierter Browser für RDF-Graphen: Welkin. RDF-Datei laden und *zack* erscheint der passende visualisierte Graph.
Ein kompaktes RDF-Vokabular zur Beschreibung von Open Source Projekten: DOAP (Description of a Project).
Die DOAP-Beschreibung zum DOAP-Projekt gibt es z.B. hier.
Die dazu passende Grafik gibt es auch: 
Wer kennt es nicht? Man geht auf eine Webseite und muss dort persönliche Daten eingeben. Aber wer liest sich schon immer die Datenschutz (Privacy) Richtlinien der Seite durch und entscheidet dann aufgrund dessen was er an Informationen herausgibt? Richtig, fast niemand.
Aber wäre es nicht schön, wenn z.B. der Browser den Benutzer automatisch darauf hinweisen würde, was dieser am besten preisgeben sollte und was nicht?
Und genau hierfür braucht man standardisierte Angaben zu den Datenschutz-Richtlinien einer Webseite. So können diese automatisiert verarbeitet und interpretiert werden.
Hier setzt das “Platform for Privacy Preferences Project (P3P)“ vom W3C an und definiert das entsprechende Format für diese Angaben. Format ist XML und es gibt sogar ein RDF-Schema dafür.
Das werde ich auf jeden Fall mal weiterverfolgen.
Papers and slides from the 2006 Jena User Conference, which took place in Bristol (UK). Available here.
This thought lists some of my favourite weblogs, especially logs containing information about SemanticWeb-technologies and programming.
 Dave Beckett – Journalblog News Feed |
 Hackdiary News Feed |
 Internet Alchemy News Feed |
 Lost Boy News Feed |
 Intertwingly News Feed |
 ongoing News Feed |
 Erik Benson News Feed |
 Jonathan Peterson News Feed |
 shelter.nu News Feed |