He says that an edge weight in the neural network means "At pixel 9x6 the letter A is 58% likely to be filling in that pixel." That isn't how neural networks work (although, it is fairly close to how bayesian belief nets work). In a neural network the edge weights of the graph don't obviously correspond to anything - they are simply chosen (most commonly through the back propagation training algorithm) to minimize the error between the desired output and actual output on the training data.
The weights in a neural network are simply the coefficients for terms in an equation that, when plotted, produces a curve that's a good fit for a series of data points. Unfortunately, that explanation is not very sexy ;-) That's one of the big problems with neural networks - they're effectively just black boxes that incidentally produce pretty good answers. They are (in most of their standard incarnations) really just a fairly simple technique for regression analysis.
Incidentally, I got to see Resig speak about jQuery yesterday, and he's clearly a very clever guy. I say this with all due respect, and fully expect that this is just a misunderstanding due to me misinterpreting the sentence I quoted in my second paragraph.
Also offtopic, are .biz and .info domains used for anything that isn't a scam? Anyone seen a legitimate website hosted at .biz/.info?
Is it just me that has a mental filter "Never click on .biz .info .name"
edit: I still think .info should have been .nfo and been restricted to ANSI art.
I assure you I'm not trying to sell anyone anything, I just couldn't get the .com
I definitely agree with .biz though. Just looking at it invokes a scammy sensation. There are lots of good .info sites though... regular-expressions.info and magiccards.info come to mind.
Luckily I've since been able to get a decent .com (and .co.uk)
(The URL was for my open source project. Clearly, they didn't even check the webpage before issuing their threat.)