tags: semantic web

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RDF (3), FOAF (3), integration (1), Atom (1),

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Rej is a graphical utility that allows you to write RDF statements directly, using a simple layout that is designed to naturally reflect the basic RDF model. You might use Rej in any situation that uses RDF as part of its pipeline, or as a general purpose annotation tool, such as when taking notes or doing research. Please see the installation guide for instructions on how to install Rej, and the manual for some basic information on how to use it.

url: http://infinitesque.net/projects/Legere/components/Rej/

type: project, format: none


Foafpress — Semantic Web application to publish RDF data including Linked Data aggregation

Foafpress screenshot, foaf:Person profile

An open-source PHP web application and presentation engine that publishes profiles and web pages based on RDF data stored in files. It allows you to aggregate and publish data from multiple web sources via Linked Data.

url: http://foafpress.org/

type: project, format: page



tags: semantic web, RDF
The Open Data Movement aims at making data freely available to everyone. There are already various interesting open data sets available on the Web. Examples include Wikipedia, Wikibooks, Geonames, MusicBrainz, WordNet, the DBLP bibliography and many more which are published under Creative Commons or Talis licenses. The goal of the W3C SWEO Linking Open Data community project is to extend the Web with a data commons by publishing various open data sets as RDF....

url: http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData

type: project, format: none


I'm learning more about the semantic web and RDF. I created an RDF Site Summary and FOAF file.

I've had an Atom rss feed for a while now. But i like RDF Site Summary because it's endorsed by the World Wide Web Consortium.

FOAF stands for Friend of a Friend. It's a way to use XML to specify some information about yourself and your friends. Developers have written FOAF navigators and aggregators to generated large SVG graphs of people. Here's the FoaF Explorer. FOAF includes relationship types such as friendOf, spouseOf, parentOf, etc.

Semantic Web

Celeste just posted an article about Tim Berners-Lee's Semantic Web. The article she cited got me thinking.

I'm just beginning to understand this "semantic web" concept. Let's see. The problem is that our web pages contain data. This data has meaning to use, but it's gibberish to computers. We need to mark this data with metadata describing it.

Say i want to search the Internet for a recipe with asparagus and steak. I can search for those terms but will i get a recipe with asparagus and steak or a page of text with the words recipe, asparagus, and steak in it?

Example. Assume a web page describes an Independence Day Fireworks show. This event has a date, location, and other attributes. However, i can't write a program that will search the web for dates and locations. I mean i can search on Washington DC, but i will get too much wrong information. It would be nice to write a program that automatically searches the Internet for events AND imports the interesting ones into my calendar.

This integration with applications can also be done for contact information like email, phone number, geographic location, tv schedule, weather, etc.

There are two places where i do see this.

One is called discovery in the blog world. If i want to trackback ping someone's article, i throw their URL into my form and my software will extract articles that can be commented on.

The other, also with blogs, entails discovering the friends of a blogger by searching their blog page for RDF and Friend of a Friend (FOAF). (There's another name for this that i can't find.) Here's a good article. See Listing 1.