Aug 23, 2009

Little Miss 3, and the camera

Lilly has a Fisher Price digital camera. It was a present from Gabriel - at his birth.





Now little Miss 3 is wandering the house flash-photographing everything. Some of her photos are quite impressive.




All the photos shown were done entirely by Lilly.















The last photo shows me, at about 10pm, removing said camera from the photographer who was supposed to be in bed sleeping....

Aug 22, 2009

Getting ready to go


It's our last weekend before flying to Brazil on Wednesday. We are at the point of knowing we have to pack and not wanting to really start. Well, I'm not really wanting to start packing (I hate packing) Flavia has put out piles of clothes on top of large suitcases, in preparation for my eventual capitulation.

So today we went to Philip to buy a learn-to-finger-pick guitar book. It was recommended by the guitar teacher (I'm now doing continuing) and looks pretty flashy. Then back to Belconnen for lunch and minor shopping - chemist, photos, carry-on bags. We promised Lilly a trip to the park, which is why at 3:30pm this afternoon, we went to Lake Ginninderra park -- the John Knight memorial park, which is the developed part of the larger park area.

It was ridiculously cold and windy, but I was obstinate, and a little cabin-fevered, wanting to be outside for a few minutes. We took a kite we'd bought a few weeks ago, and flew it off the walkway bridge to the lake. Lilly was quite interested in the kite, until she noticed the "crocodiles" lurking below the bridge -- some floating rubber barriers. Then the conversation turned to what the crocodiles were doing, and how she could see them through the gaps in the bridge...

Sadly, we don't have a photo, but next time we're out there (which won't be for a while) I'll make sure we remember to photograph the place. Canberra seems to lack official photographs of the parks, which is a shame, since the area is quite lovely.

Home brought soup for dinner, and we've all been dosed up on lemon, ginger, honey tea. I'm hoping the jaunt doesn't come back to bite us in a few days' time.

Aug 17, 2009

Global Financial crises due to ignorance, not greed, says Jeffrey Friedman

Listening to ABC radio national, counterpoint, this afternoon, I heard an interview with Jeffrey Friedman, who was introduced by the interviewer with the notion that the Great Finance Crisis was caused by too much information, rather than anything else.

Interestingly, Friedmans waved aside the claim that greed was the root-cause of the GCF. Greed=evil=GCF is a common (albeit glib) argument that has been floating around for some time. Examples are: greed & ignorance responsible for housing crisis (back in 2007, before it was global) and National Public Radio gave an equally greed=bad argument in 2008.

I would suggest that in capitalist societies, greed is a good thing - that to claim that somehow everyone should act in their self-interest, but that at some point the super-self-interested are doing it wrong is to miss the point of the system. If greed is the reason why the global system fell apart, then it ought to have collapsed in the industrial revolution, when finances were being greedily absorbed by factory bosses. Or when oil barons were behaving greedily. It didn't.

If we agree that individuals in the capitalist society ought to act in their own self-interest whatever that may be, and that they do this within whatever legal constraints apply, then greed, being the act of effecting this self-interest is always good. Moreover, if too much greed is the problem, then we are doomed to forever have global financial crises, because I seriously doubt there is anyway to reign in the self-interested.

So I liked the premise - there was something other than self-interest at the heart of the financial crisis. Friendman argued
The financial crisis was caused by the complex, constantly growing web of regulations designed to constrain and redirect modern capitalism.
The details of the article on which the interview was based is found here
These regulations interacted with each other to foster the issuance and securitization of subprime mortgages; their rating as AA or AAA; and their concentration on the balance sheets (and off the balance sheets) of many commercial and investment banks. As a practical matter, it was impossible to predict the disastrous outcome of these interacting regulations.
I know I am cheating, by only quoting the abstract of Friedman's introduction, but I feel this largely summarises his argument on radio. The ignorance which birthed the crisis was created (at least in this argument) by too much and too complex regulation. The "ignorance" approach was addressed by Kaufmann somewhat pre-emptively in March, in capture and the financial crisis:
There has been a reticence in rigorously studying the extent to which money in politics, 'legal corruption', and capture may have played a significant role in causing the mammoth crisis we are in now.... it is naive to claim that the problem was mere 'ignorance'
however, `ignorance' is not really the problem cited by Friedman - rather it is that the economic system is impossibly complex to forecast and control. The conclusion Friedman draws in his article (June 1) is both more complex, and more compelling.
The problem of the regulator and the scholar—and of the citizen of a social democracy—is essentially the same: There is too much information. This is why modern societies seem “complex.” And it creates the special kind of ignorance with which modern political actors are plagued: Not the costliness of information but its overabundance... While from an optimistic perspective, therefore, the financial crisis might be seen as a “perfect storm” of unanticipated regulatory interactions, and thus as unlikely to be repeated, a more realistic view would treat the crisis, and the current intellectual response to it, as warning signs of more, and possibly worse, to come.
Further, Friedman claims that it is policy (rather than economics) at fault. A core example in the argument is that prudential regulators put credit ratings agencies in an impossibly strong position - non-competitive by law and then legislated that consumers especially government buyers and super-annuation funds, use the AAA bonds as rated by these agencies. Friedman argues that if there were substantial competition between agencies then the faux-AAA rated subprime bonds might not have arisen.

So here's a question - should the ratings agencies be regulated? And what would competition between ratings agencies look like - particularly when "you may only use AAA rated bonds" regulations remain in effect.

Finally, Friedman's argument (and others elsewhere) seem to imply the market had a self-inflicted blind spot. In this case the ratings agencies did not provide true transparency. Friedman doen't really dewll on this, suffice to imply that it's probably not wise, in the absence of information, to promote one-eyed guides.

However, some have claimed that the GFC implies the efficient market hypothesis (EMH) is dead. I would argue that it really shows that some information (credit ratings are for dopes) was not widely available. And hence, while this information remained private to a select few, some people probably made (or at least did not lose) a substantial amount of cash. Once the information did permeate the market, the price of the sub-primes nose-dived in accordance with the EMH.

So I wonder, as I flail about with nil economic training, is there a theory of transitions for economic principles? From an engineering approach, rules a such as EMH appear as steady-state descriptions -- but the interesting activities we see are all dynamic responses, that is, it is the transitions to new steady states where the profit and loss are made. What I need now is an introduction to economic dynamics. That, and some sleep.

Aug 8, 2009

Mum's birthday, or, mission impossible

Today was Mum's birthday.

So we started out by cooking a cake. This may not sound a big deal, but mum is allergic to gluten, wheat, sugar, dairy, eggs, iodine, yeast... suffice to say, that building a cake which looks like a cake, and tastes not like a metal sponge is verging on mission impossible stuff. difficult.

But we have found a solution: There are a couple of new brands available at the local supermarket
  • Easy Bakers yeast, dairy & wheat free flour. From Lauke Flour. Which is actually flour that looks and feels like real wheat flour, and not (to randomly choose something) re-fried dirt.
  • Orgran, gluten free, No Egg - which is an egg replacement.
We sort of followed the "basic cake" recipe on the flour box. Flavia inevitably asks me why we can't at least follow the actual recipe once before deciding that it won't work without substantial creative input. I don't know why recipes are written that way, but the answer is we just can't.

So. Into 250g of the nifty flour (correct to recipe) sieved, we added 5 heaped teaspoons of No-Egg should have been 4 whole eggs. We also added 150mL fresh-squeezed orange juice that should have been 100mL water and some water because it wasn't looking wet enough and about 20 drops of Sugarine should have been 75g of sugar. I also accidentally added 1/2 a teaspoon of the vanilla essence we have in the cupboard in a moment of non-concentration. We then cut a super-ripe banana and dropped the slices into an concentric-round cooking dish (it was supposed to be a flat square tray) covered the banana in nutmeg and cinnamon the recipe is just looking at me shaking it's head with a why-oh-why do I even bother type look and poured in the (rather small looking) batter. It was starting to rise and bubble in the mixing bowl.

Oven at 150C correct to recipe and the whole thing cooked in about 10 minutes which I take to be reasonable when the recipe said 30 minutes or when golden. The batter was golden when I put it in, so no help there, and after all, they hadn't accounted for half the stuff I did o their recipe..... We just did the classic toothpick test a few times.

Mum loved the cake, it actually tasted like banana bread, and we started the day with a completely out of time and tune happy birthday song in English and Portuguese. Lilly helped blow the candles out, delivered the present, opened the present, stuck her head in the bag and shouted There's chocolate! and after handing Mum the chocolate, shouted And a scarf! So the surprise element of the present may have been lost.

Astute readers may wonder, with all those allergies, what we're thinking giving Mum chocolate for her birthday, but it's (again a recent find) Sweet William chocolate which I have to say is one of the best foods we've found for Mum ever. It is milk, sugar free, but still tastes close to real chocolate.

We've previously bought mum membership to the National Gallery of Australia, and so we took Mum for the first time to the "members lounge". She was impressed with the view and the service. Lilly loved looking at the forest from above, and watching the people walking around the trees. I carried Gabriel in the Baby Bjourn, facing outwards this time, and he had a great time. Never complained once.

In the lounge Flavia noticed some lilies in water - and pointed them out to Lilly. Lilly was fascinated that flowers have names. So after returning home, she noticed that we had some flowers in vases on the table. These are Lillies! No, they are camellias. Oh. All flowers have different names. We looked around the house and pointed to some pansies Lilly had planted a while ago. Pantsees? Pansies. Ah. And did Lilly remember the little tiny blue flowers that grew in the grass outside? Mum asked her What do you think they are called? Harry.

So we now have some tiny blue grass flowers which are named Harry.

We've ended the day with watching the first Mission Impossible movie, it seems appropriate.

Once in a thousand years, half a dozen times!

On the Friday, the 7th of August, was one of those freaky time-and-date moments that we seem to be hitting repeatedly now that the calendar year has integers in it. At 12:34:56, 07-08-09, the numbers of the time (12 hours 34 minutes and 56 seconds) and date (7-8-9) formed the counting sequence.

Curiously, if we chose to write the time as YY-MM-DD HH-MM-SS.T (T being in tenths of a second), then we also got: 9-8-7 6-54-32.1, and that we got twice on Friday. (morning and evening).

One of the best references is here. Which is written with the view of writing dates MM-DD-YY, so the 7-8-9 was actually the 8'th of July... If you like sinister red fiery numbers then this is the place for you. And for Unix, which counts the time in seconds since 1970, the event 1234567890 passed last Feb, 2009. (It didn't take many seconds to get to 123456789 which passed a long time ago). Yeah, I'm a pedant.

Aug 7, 2009

Work stuff: it's time to leave the blog

So, I've decided to create a new blog: wearable intelligence which will capture all the material related to the work I do. The intention is to separate work-thoughts from home. We'll see how this goes, but I do expect that every now and then a "wireless world" post pops up here, and some reference to Miss 3 or Small Dude sneak in over there...

Aug 6, 2009

Cakes and fun

It's my birthday today.

Flavia bought an excellent mud cake which had (honest) a 5mm thick chocolate coating - not icing, chocolate, and not compound chocolate. Miss three has been extremely excited, telling me for the last day or so Your birthday is in the fridge! [meaning birthday cake] She whispered this to me, because it's a secret.

The cake is from a little bakery in Kippax, called Baker's Best at 8 Hardwick Cres. I don't know if they do all their own stuff, but the food there is always excellent, it's not expensive and the staff are super friendly. I've often walked past at the end of the day, and the manager will give Lilly a few free croissants - it's that sort of place.

An excellent day, and thanks to all.

Aug 5, 2009

Playing with the style instead of creating content...

It's always a temptation. But I like tag clouds. The tag cloud on this blog is copied from Phydeaux3's blog, and it worked perfectly first time. Kudos to phydeaux3.

Aug 4, 2009

Computing

ICT Careers: Willy Wonka and the Google factory
In what must be a kind of Geek version of the Willy Wonka tale (as if the chocolate factory weren’t geeky enough), Google is offering 40 students and their parents a rare look behind the scenes at the company’s Sydney Googleplex.
Years (ok, more than twenty years) ago I entered an Australian computing Olympiad. It was the pre-trial run, to see if anyone from the tiny thousand-person shire high school would actually enter the true ACS Olympiad. Amazingly enough, someone did.

Since then I think the Australian Computing Society has run regional South Pacific trials in which Australia periodically appears. Other Olympiads also exist, but in general it's been fairly low-key. There has been a recent announcement of re-invigorating the secondary schools computer science outreach
Meanwhile, the Australian Computer Society and peak research agency National ICT Australia (NICTA) have announced a National ICT Prize for high school students, where years 10 to 12 students have a chance to win prizes from a total pool of $5,000, with top prize being an ICT internship inside NICTA's research laboratories.

“Offering school students the opportunity to contribute to dynamic, world-class ICT research projects is a powerful way to engage them with tertiary-level ICT study and participation in the digital economy,” said NICTA's education director, Tim Hesketh.
which makes me wonder: why are there no substantial tertiary programming contests in Australia?

My 2nd-year computer science Algorithmics lecturer Mike Houle, introduced me to the idea of individual programming competitions for hard problem solving - travelling salesperson and the like. I've seen similar things since, either for individuals or teams: typically it's a massive class assignment, in which the competitors hand in one final solution code which is tested, and run. The competition winner is the one with the best score. In Mike's case there was some feedback along the way with a trial data set, that students posted (on his door -- no real Internet then!) their current score.

I have found a different type of programming competition, which I am particularly interested in: the Matlab one where teams not only compete on the problem as stated, and publish their scores but they also publish their code thereby giving the opposition a chance to modify and resubmit the code before the competition closes. It has the feel (to me who has never seen one) of something like real code collaboration - subversion style. It also strikes me that the winner of such a competition need not be the best programmer, but that much of the "sponsors' benefit" will be achieved in scoping out the competitors while the competition proceeds.
This sort of competitive collaboration is one of the aspects that makes the MATLAB Contest "programming as a spectator sport".
So, is it possible for Australian Universities to have a code-collaborating competition like this? There would need to be some common need, and some common benefit (both the students and the sponsors) but it strikes me that with enough impetus, there are enough Comp. Sci., Soft. Eng and Elec. Eng students around who'd jump at the opportunity to hack away.

Aug 3, 2009

Painting by footprints

So last weekend, instead of cleaning the house, gardening or doing anything that we ought to have done, we painted.

I begin by noting that the amazingly large paper is courtesy of work, and a never-ending-demand for posters. I also note that Mum is still staying with us, and as an ex-pre-school teacher of many years "doing something interesting with a three year old" takes on a whole new world of meaning.

Enough context. We got up, we wandered around the house finding the paints -- we used squeezie-marker pen type ones, that were supposed to be not too hard for small people to use. I believe Flavia has photographic recall of every object we've ever bought, and where it currently resides. She managed to find and unearth the paints based on no more than my statement "We got some squeezie paints for Lilly a year or so ago, you know, the ones you can hold. Do you know where they went?" With my GPS-like description of the materials in question, and less than one minute, we had the paints. And so with two A0 posters stuck together, we filled the lounge room.

In the end, it was much more fun to finger paint than it was to use the paints as markers. Yes, that's me in the trackies and ugg boots. Lilly is performing her first ice-skating based masterpiece. At this point in time we have (I think) finished breakfast. Flavia has very generously not shown any identifying features of anyone except the artist in the photo.

This weekend we might add some more paint, and put the work-in-progress up on one of our walls.

And the flame grows...
Today Mum started blogging. This takes us from Flavia, Its just a way to put pictures up to me, and now Mum, who is very excited. I am looking forward to the news, and hoping that once we all separate back to normal households in a month or so, we will keep the blogging active.

Aug 2, 2009

Ballet

Flavia's sister (Renata) has just sent over this link. My niece (Manuela) is taking ballet classes. She is the last to enter from the left. The view is from Manuela's first ballet presentation.

I don't care what anyone says, I think it's brilliant.