A new video by Katie Ray has been making the rounds recently which gives a nice introduction to the Semantic Web and what it all means. An interview with John was featured in the film, along with interviews with Semantic Web personalities such as Tim Berners-Lee, Lee Feigenbaum, and others. Check it out!
This is the second article in our series that expands the code example from Chapter 5 of Semantic Web Programming to cover the semantics of OWL 2. This article covers property chains. The code can be downloaded from here (zip, 7z, tar.gz) and includes an Eclipse project with all required dependencies.
This article focuses on the semantics of property chains and how they are interpreted and applied in a reasoner that supports most of OWL 2 semantics (Pellet 2.0 RC6 – see the Pellet documentation for a full list of the semantics supported in each release candidate).
As I said in the first article, for a more in-depth exploration of OWL and Semantic Web, feel free to reference the book as needed or buy a copy so you can learn about the cool stuff in this article and more. Click the link below to read the rest of the article…
This article is the first in a short series of articles that expands the code example from Chapter 5 of Semantic Web Programming to include some of the features of OWL 2. The code can be downloaded from here (zip, 7z, tar.gz), including an Eclipse project and all dependencies. This article focuses on how the semantics of qualified cardinality restrictions are interpreted and applied in a reasoner that supports most of OWL 2 semantics (Pellet 2.0 RC6 – see the Pellet documentation for a full list of the semantics supported in each release candidate).
For a more in-depth exploration of OWL and Semantic Web, feel free to reference the book as needed or buy a copy so you can learn about the cool stuff in this article and more 
Recall from Chapter 4 in the book that cardinality restrictions are a way to specify the number of statements that describe an individual with a unique value that have a particular property as the predicate of each statement… Read more…
As part of the the E-Business lecture series at Towson University, John Hebeler gave a presentation on the Semantic Web and its role in data integration. The presentation is here in pdf format – Semantic Integration.
Here are the links to the various sites discussed.
