I was informed this evening that my youngest brother has run off to enlist in the US Marine Corps. He’s not been sworn in yet, but I’ve little doubt that he will go through with it. I was convinced that he’d enlist the day he turned 18, and the fact that he didn’t was pretty surprising. Still, it’s highly disturbing that he didn’t consult anyone in his family for advice. At 19 one thinks one knows everything, but I was 19 not that long ago, and I’m old enough now to realise what a fool I was then. Military recruiters lie through their teeth, and to sign a contract without having someone else look through it is foolish.
Of course, I suppose that this is his way of asserting his adulthood.
He’s been treated like a child for the past several years living
at my parents’ house, and this is probably his means of saying,
Hello! I’m an adult now!
He could have chosen a less
drastic method of doing so.
I’m not against him signing up: the Marine Corps is an honourable institution, and it is proper and good to serve one’s country. But there are better ways to go about doing it. For one thing, he should have waited until he had a degree, when he would have been much more valuable.
And they’re going to make him shave his beard, which is just immoral…


Social Software and AI
One of the techniques used in some sub-fields of Artificial Intelligence is training: one feeds one’s apparatus a set of known good associations (e.g. this word sounds like this and that like that, or this is the number 3 in forty different styles of handwriting), and for each sees what answer it returns, then correct it based on its answer. This obviously requires a large corpus, and building such a corpus is time-consuming and error-prone. Imagine how much work would be involved in gathering several hundred thousand photographs and hand-identifying each person and feature in each photo. It would be mind-numbingly boring; no intelligent person would want to do it, and a low-paid data-entry clerk would likely make many mistakes. But that’s what one has to do.
Until now, that is. For there are now several social networking sites out there; these are ways for one to indicate who one is and who one’s friends are, and see who the friends of friends are and so forth. Many let one upload one’s own photos and indicate who’s in them and (this is key) where. There are also sites to trade & categorise URLs, photos and what-have you.
Well, this is a researcher’s dream: tens or hundreds of thousands of motivated categorisers. Rather than a bored data-entry clerk, each of these users wants his data to be accurate, and will update it when he notices an error. So now Facebook and Flickr provide a huge photo corpus; Facebook even has photos keyed to unique users! del.icio.us provides tagged access to URLs (useful for grading comprehension of a web page). All these data are just begging to be mined.
There are, of course, some privacy implications...
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