Semantic Web Gathers Substance
David Hersey writes "ADTMag reports that the semantic web technologies are taking real form in the wake of recent W3C approvals and early pioneering work by vendors such as IBM, Boeing, Adobe and others. These technologies have been developing for several years. When and If the finally take form, they hold the potential of raising the capabilties of internet users and internet technology applications to levels that are today impractical due to the web's document-centric architecture."
...check out various tools on SemWebCentral.
For example, you can browse the GForge project listing using OWL - more precisely, using an HTMLized version of the ObjectViewer.
The Army reading list
IA is a new interest of mine, specifically on the web...
m l
My favorite sites are:
boxesandarrows.com
zeldman.com
alistapart.com
http://argus-acia.com/white_papers/iaglossary.ht
http://iaslash.org/
Cloud City Digital: DVD Production at its cheapest/finest
Ultimately though, the question is whether people actually _want_ to enable the ability to reuse and recombine their data.
Within your own data, tools to enable you to analyse and reuse your data are highly prized, but enabling anyone else to use your valuable data to their own ends benefits (almost) noone. (IMHO)
The Semantic Web seems to be a generalized version of metatagging combined with a search engine tailored to the format. To work well, this requires 1) everyone to think hard and attach to their pages the appropriate semantics, and 2) that there are few people in the world that deliberately associate all sorts of junk with their web pages in order to get the page to appear in everyone's semantic search.
I'm not buying into the magical benefits of XML at all. Just because a file is written in XML doesn't mean your computer magically knows what it means (if that's what the semantic web is, then yeah, that violates both Godel's Theorem and common sense.) Your computer still has to know what XML tag to expect where, and what the data actually means in every tag (they can throw vague, poorly understood words like "ontology" around all they want, at the end of the day a human programmer still has to look up the documentation to see what a given tag stands for.)
Perhaps using an XML parsing library is slightly easier than designing your own file format and documenting it properly (you have to document it either way...but XML makes the process more formal, in theory). Perhaps using an XML editor or viewer to edit XML files is slightly easier than using emacs to edit text files. I suspect the minimal efficiency gains from either of those have already been burned away by millions of people trying to read and sort through meaningless noise-philosophies by MBAs preaching the benefits of this New World Order of Ontological Semantic Standardization.
So far the biggest semantic web project I've seen is IBM's WebFountain, which is basically a big sed script that goes through the web and wraps each stock phrase it finds with meta tags, and enters them in a big database. It seems like a reasonable phrase search would accomplish the same thing.
---- "If we have to go on with these damned quantum jumps, then I'm sorry that I ever got involved" - Erwin Schrodinger
The semantic web is not a procedural system; it's a method of encoding information. Goedel's Incompleteness Theorem is about mathematical systems and their ability to describe certain truth values.
I don't see any immediate connection between the one and the other.
In a sense I am a great fan of the idea of a semantic web. But I am affraid that it does not work in reality. As soons as it gains some momentum it will be hyjacked by large companies (MS, Yahoo) trying to commercialize it and by small companies trying to misuse it (spam).