Friday, February 27, 2009

Golden Gate Raptor Observatory is seeking volunteers

Every fall, I volunteer with the Golden Gate Raptor Observatory, identifying and counting migrating hawks. The location is spectacular — Hawk Hill overlooks the Golden Gate Bridge — and the hawks even more so.

If you live in the Bay Area and think this might be your thing, attend one of the informational meetings: Wed 29th or Thu 30th April from 7 - 9.30pm, or Sat 2nd May 10am - 12.30pm.



(Can anyone identify the 3 birds at the top of the flyer? Bonus points for age & gender.)

Monday, February 16, 2009

Welcome, Sebastian Hyde!

Those of you who follow me in Twitter and Facebook will know that my thoughts have been on the birth of my son, Sebastian Hyde, and not on open-source BI or streaming SQL as much as usual.

British fathers often celebrate their baby's arrival by "wetting the baby's head" at a local hostelry. Unlike the Christening ceremony that it is patterned after, this involves lots of beer but no baby. My friend Rhys (who, my American readers may like to note, is British but not English) devised a variation of that tradition he called "baby bingo", and we carried out the ceremony at Barclay's pub on Friday.

As my father well knows, beer and commemorative plaques go together. Rhys, Jacq and Sabine just presented us an excellent framed image listing the beers that we consumed in Sebastian's honor. I wonder what Sebastian will make of it when he's older?

Saturday, February 07, 2009

Calculus: it's so basic that even moronic headline writers should know about it

The following headline in the Daily Telegraph struck me as really odd:
"Facebook at five: Ten times more traffic to Twitter website than Facebook in last year"
The actual facts in the article show that the headline was patently false:
  • "Over the last year, traffic to Twitter [...] has increased by 1191 per cent, while traffic to Facebook has grown just 110 per cent"
  • "Facebook [...] received 133 times more UK internet visits than Twitter"
If the headline had read "Ten times more growth in traffic to Twitter website than Facebook in last year" or "133 times more traffic to Twitter website than Facebook in last year", it would have been correct. I'm guessing that the headline writer omitted the word 'growth', presumably to save an inch of headline space, and turned the truth on its head: by a factor of a thousand.

The problem is that journalists are confusing a quantity and the time derivative of that quantity, and it bugs the heck out of me. Journalists who have a professional respect for punctuation, grammar and fact-checking seem to have a disdain for basic numeracy concepts like time derivatives. Do they not understand the difference, or do they think that we're too dumb to notice?

I hear financial journalists trotting out that such and such tax would "raise 15 million pounds". What, on the very morning it is introduced? No; we, the reader, are supposed to insert "per year" to compensate for the journalistic shorthand.

And here in the U.S., the terms "deficit" and "debt" are often used synonymously in the public discourse, where in fact, one is the derivative of the other. With record deficits and national debt looming, and astronomical numbers that we have a duty as citizens to try to comprehand, we need the help of journalists more than ever to help us make sense of the world.

Sunday, February 01, 2009

Michael Cote on SQLstream

In their weekly podcast John M. Willis discusses SQLstream with Redmonk's Michael Coté.

[Edit: This originally read "In his weekly podcast, Redmonk's Michael Coté discusses SQLstream with John M. Willis."]
"Is anybody foolish enough to think that one screen is going to be able to tell you what is going on?
I've actually seen customers try [...] to do ETLs every 15 minutes in order to look at what's goin' on, aggregating your data and doing analytics on your data, [...] which is at least a 15-fold [improvement over] using a single-pane-of-glass. [If you do that,] you can avert major disasters because you're watching the trend happen.
I think that something like SQLstream, or something like that, that is watching it as it goes [...] has brilliant  potential."
The action starts at around 1:10:00 in the podcast.