[ Home | Articles | Account | People | Projects | FAQ ] Name: Eivind Eklund
Member since: 1999-11-14 23:00:04
Last Login: N/A
Homepage: http://www.freebsd.org/~eivind/
Notes: I'm a FreeBSD developer, presently on sabbatical. For my sabbatical, I'm working on a new version control system, aimed at distributed development. I don't fully track the new members on Advogato; however, I check out the people that have certified me and give a re-certification if I know enough to do so.
My e-mail address for Open Source-related issues is eivind@FreeBSD.org.
Personally dangerous point of the day (or rather, last night): Got partially hooked on Everything 2. Starting to write up nodes there is a recursive loop - you always find something you want to link to, and thus have to create ever more nodes.
The Everything experience, combined with previous inspections of WikiWikiWeb, has led me to conlude that Ted Nelson (the original inventor of hypertext and initator the Xanadu project, started 1960) was right: You do need some way of hooking together multiple nodes of text (he calls them 'berts' or somesuch) to form a coherent text stream, but still be able to connect different sets of them for form different streams. Neither linear text nor traditional node/page based hypertext is enough, and thus all of the web, Everything, and WikiWikiWeb fail to live up to the original promise of hypertext. Everything and Wiki comes closer than the overall web, though.
Ankh mentions using the correlation between evaluation from various people to find out what to present.
This is a field that has seen some study; it is known as "Collaborative Filtering" (or just "Personalization" when the marketeers have been there), have implementations available from Firefly (now purchased by Microsoft, IIRC - their website is down, so I can't check), Net Perceptions (the commericalized aspect of Grouplens, and probably a couple of other companies.
If you are going to experiment with this, picking up a book on multi-variate analysis is probably not a bad idea. You can get free datasets from Compaq for research use. These measure how well a bunch of people have liked films (from EachMovie, while that still ran). They are probably better to use than the Master/Journeyer/Apprentice ratings from Advogato, as I expect "How well did you like that film?" to be more likely to evaluate the same criterion in each person than the various Advogato ratings. Apart from that, I expect the data sets to be much larger - EachMovie was mass-targeted and seemed quite popular.
Not that this is terribly relevant as a form of diary for me, but given the restrictions of the communications medium... *grin*
Overall conclusion: The GPL only makes sense if you hate commerical software so much that you are willing to hurt free software to hurt commercial software, if you love gratifying your own ego more than you love free software, or if the building blocks you are using force you to use the GPL. There is a long buildup of economics to show this, something I was surprised at when I first discovered it.
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