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"Oh, and be sure and check out the big kids: Haystack, SIMILE's Piggybank, etc."

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SWOOP

PhotoStuff

Ontology Tools Survey, Revisited

" Ontologies are a way of specifying the structure of domain knowledge in a formal logic designed for machine processing. The effect on information technology (IT) is to shift the burden of capturing the meaning of data content from the procedural operations of algorithms and rules to the representation of the data itself."

"Oh, and be sure and check out the big kids: Haystack, SIMILE's Piggybank, etc."

Protege

SWOOP

PhotoStuff

Ontology Tools Survey, Revisited

" Ontologies are a way of specifying the structure of domain knowledge in a formal logic designed for machine processing. The effect on information technology (IT) is to shift the burden of capturing the meaning of data content from the procedural operations of algorithms and rules to the representation of the data itself."

I've been wasting away in the vast pits of RDF and the "Semantic Web" for the last year at work. Here's a relatively nifty tool developed by some grad students at some university or another. PhotoStuff. Lots of stuff is being done with RDF - in particular with inferencing (using tools like RDF Gateway and the like). If you want to know my opinion on the subject: I hate it. But overtime, I've also come to respect it. Developing with it may not be my cup o' tea, but it can still be used to do some pretty nifty stuff.

Hmmm...just tested The Use of Lisp in Semantic Web Applications in KPDF, KGhostview, xpdf, and envince. Hyperlinks to the references list worked in xpdf and envince, and didn't work in KPDF and KGhostview. I wasn't aware of this issue before.

Semantic web is not something you can thing of as a concrete application nor we can consider it mature. As you surely read, semantic web is an extention of the current web. So I can link you to firefox or some HTML editor. Joke aside, it is more complicated than that and if you want to embrass semantic web you should get to know XML, RDF and OWL (in this order). In fact, if you are not working to build sw, you should consider another approach. I suggest you to look at RSS there and foaf which are IMHO concrete, but limited, examples of semantic web working examples.

As a web developper... try to generate web pages from RDF (mindswap as some tools) or XML (ala gentoo) source.

People who don't have a clue about semantic web tend to refer about it as semantic horse shit. It's a petty that those who don't believe in things try to demolish them rather than let it go... or let it perish if they are so sure about it's doom.

I am an ex-Lisper who strayed from the One True Language and am now in the process of regaining proficiency to rejoin the Lisp Priesthood. My motivation is that I am tired of the limitations I hit due to the deficiencies inherent in all the other supposed "modern" popular programming languages I've encountered. I also remembered really *enjoying* the whole process of rolling Lisp code, a joy I lost long ago when I strayed into the mass market of more socially acceptable programming languages.

The deficiencies of modern languages I speak of above are not necessarily those of capability (though those exist), but are primarily of language design. Most languages are designed with the goal of increasing the productivity of the average programmer. Lisp's design was entirely about elegance, simplicity and power. I can give you lots of reasons why Lisp is better than insert-your-favorite-programming-language-here, but that will just devolve the conversation into a jihad. So, let me tell you what Lisp is fantastic at.

Actually, you know what? I'm not going to reiterate that which others have stated. If you really are interested, let me just point you to a couple of sites to get you started on your journey of discovery. Read Paul Graham's essays/articles, the first two chapters of Peter Siebel's book available on-line, this essay on Lisp's prowess as a rapid prototyping language and this paper on why the future of the (semantic) Web may lie with Lisp. Then, if you appetite is whetted, Google for more info, download a flavor of Common Lisp, work thru Seibel's book, and experience it for yourself.

Or not. If you're perfectly satisfied with whatever flavor you how you do your work, there is absolutely no reason to learn ANYTHING new, is there?

Learning Lisp. It will take you back to the future.

http://www.geovistastudio.psu.edu/jsp/index.jsp

"GeoVISTA Studio is an open software development environment designed for geospatial data. Studio is a programming-free environment that allows users to quickly build applications for geocomputation and geographic visualization"

http://www.mancke-software.de/wmsClient/

"This is the Home of a Client vor viewing Maps from an WMS (Web Map Server). "

http://www.mindswap.org/2003/PhotoStuff/

"PhotoStuff - An Image Annotation Tool for the Semantic Web"

http://my.unidata.ucar.edu/content/software/idv/in dex.html

"The Integrated Data Viewer (IDV) from Unidata is a Java(TM)-based software framework for analyzing and visualizing geoscience data. The IDV brings together the ability to display and work with satellite imagery, gridded data, surface observations, balloon soundings, NWS WSR-88D Level II and Level III RADAR data, and NOAA National Profiler Network data, all within a unified interface."

http://opensourcegis.org/

"This effort represents an attempt to build a complete index of Open Source / Free GIS related software projects. The effort has some way to go, especially for projects in languages other than English. The definition of GIS has been kept loose to encompass a broad range of projects which deal with spatial data."

"I've had to deal with other RBLs and they're a holy pain in the arse. They're not worth the service they provide. They might save a couple of people from recieving some spam, but they're costing others time, money and stress in the process. To make it worse they invariabley have a terrible attitude. They're no better than vigilantes in most cases, and are normally a good demonstration of why vigilantes aren't tolerated in the real world."

Illegal file traders on a "Robin Hood" power trip.

---
"Jennifer Golbeck. Trust networks for email filtering. Virus Bulletin (Spam Supplement), October 2004."

http://mindswap.org/papers/VBArticle.pdf

Trust in the Semantic Web - Jen Golbeck offers a solution to this very problem. Specifically, topical trust about people in subject areas... so you can make statements like "Bob trusts Joe 90% in knowledge of Subatomic Nuclear Reactions In a Post Feminist Climate". Get enough people chained together and you have a web of trust - reasonably easy to implement in wikipedia I'd imagine. Joe trusts Bob 90%. Bob works for the NOAA. The NOAA trusts Bob 100%. Joe trusts the NOAA 50%. Kathy doesn't know bob but trusts the NOAA only 40%. You can then get an average trust metric from everyone about Bob's knowledge of the climate.

I'd like to see something like FOAF used for whitelisting. I posted a SA bug about it, and then there's things like Trust and Reputation in Web Based Social Networks . I think this looks like a workable approach.

I just set up a wiki on trust metrics evaluation.

The goal of this project is to review, understand, code and compare on same data all the trust metrics proposed so far.

I'm a PhD student and this is my phd research proposal (Trust-aware Decentralized Recommender Systems) and it is very related to all this concerns (trust, reputation, decentralization, blogs, recommender system, ...)

Personally I think the more promising path to follow is FOAF (Friend Of A Friend) format (see the project blog). There are also 2 extensions (1) (2) to incorporate trust into FOAF files.
By the way, here is my foaf file. You can add me to your "knows" list if you like.

Ok, so now you can check the wiki on trust metrics evaluation and add anything you think should be there and there isn't.
Please, note that I have just opened the wiki and I still have some problem with the installation (there are 2 conflicting python installations and I'm not root of the machine) but the basic functionalities are working. Hope to continue the discussion on the wiki! Paolo

Oddly enough, frodo.mindlab.umd.edu hosts www.mindswap.org, the main page for my lab which concentrates on semantic web research.