April 2009
Intermediate to advanced
646 pages
15h 30m
English
book
Semantic Web Programming
by John Hebeler, Matthew Fisher, Ryan Blace, Andrew Perez-Lopez, Mike Dean
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Chapter 10. Aligning Information
"The newest computer can merely compound, at speed, the oldest problem in the relations between human beings, and in the end the communicator will be confronted with the old problem, of what to say and how to say it."
—Edward R. Murrow
In the preceding chapters, you have learned about theoretical and practical knowledge modeling with RDF and OWL, inference and reasoners, Jena, triple stores, SPARQL, and SWRL. This chapter combines all of these threads to describe the task of information integration and explains the role that such integration plays in Semantic Web applications using the FriendTracker application. Specifically, in this chapter, you will:
Learn about data source ontologies, domain ontologies, application ontologies, and the role they play in Semantic Web applications
Learn about the FriendTracker application and get an introduction to data-oriented software design
Learn about ontology alignment and how that process leads to truly integrated information
See several concrete examples of different practical techniques for ontology alignment in the context of the FriendTracker application
Data Source, Domain, and Application Ontologies
In Chapter 9, "Combining Information," you learned how to transform data from a variety of sources into RDF data for the Semantic Web. Even after all of the data is represented in RDF, however, it is still not integrated in a meaningful sense because the information from each source is expressed in a vocabulary specific ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.