redcalx

15 ms·

121.
by redcalx 10y ago
heh. I was unaware :)
122.
by redcalx 10y ago
Yeh as I recall Jeremy Howard was chief boffin at the start, and left some time later to start his own biomedical data analysis company (also in SF).
123.
by redcalx 10y ago
> I wonder if people would be interested in it. YES!
124.
by redcalx 10y ago
There's an argument that when the current s-curve (sigmoid) starts to reach its limit we start looking for other ways of obtaining improvements, such that over time we have a series of sigmoids and overall exponential progress... until
125.
by redcalx 10y ago
I found that matrix multiplication of dense matrices using MKL was about 60x faster than 'plain' C# code (on a recent core i7 CPU). The Vector<T> class will get you only some of that gain - mainly because MKL uses the FMA CP
126.
by redcalx 10y ago
Cool. I'm assuming you do a lot of matrix operations, so I'm wondering if you've come across the Matrix<> type in Math.Net?; It has plug-in 'providers' for concrete implementations, and there are providers tha
127.
by redcalx 10y ago
Interestingly the UK national grid's current policy is the opposite of this - i.e. to open up as many circuits as possible to provide multiple paths for charge to dissipate through.
128.
by redcalx 10y ago
I think IIS is a bad example, many of it's config settings are a complete mess of partially obsoleted legacy settings. And some of it has no definitive reference, e.g. the threading and concurrency settings which seem to change with ea
129.
by redcalx 10y ago
Sure, but can data obtained by that be used in a court of law. I /think/ those are two different things (but not sure).
130.
by redcalx 10y ago
True. Anyone know if this new IP law allows the gov to do this? I.e. if they tried to prosecute and it came to light that the logs were obtained using a MITM attack, would the evidence be nullified?
131.
by redcalx 10y ago
They can't record the pages if the request is over https, as per most web sites these days. The IP address is known because it's necessary for routing traffic, but the content of each HTTP request and response is encrypted, and th
132.
by redcalx 10y ago
Somewhat related; here's my attempt at explaining Cross Entropy: http://heliosphan.org/cross-entropy.html
133.
by redcalx 10y ago
> software solution is not realistic. I would expect such a role to be holistic; to consider the entire system and ways it could fail. The boundaries between sub-systems would be high on the list of targets; software-software, software-h
134.
by redcalx 10y ago
> The trick is trying to figure out where to spend your limited resources as the project is going. In a situation such as this where you don't have the funds to test everything to the level you would like and the cost of a failure
135.
by redcalx 10y ago
Indeed. I.e. have some probabilistic model of the 'world' and the probe's status within it (position, speed, rotation, etc). The sensor information then 'merely' informs that model, so e.g. if some sensor or piece o
136.
by redcalx 10y ago
Consider this; if those kids that would normally avoid scouts/guide were now forced to go because their parents saw reports of this study, then the effects could very well be negative, in turn cancelling out or even reversing the repor
137.
by redcalx 10y ago
It looks like they weren't included in the study because the authors deemed that they were subject to selection bias (correctly in my view).
138.
by redcalx 10y ago
Yeh. The paper claims to have controlled for this by comparing against kids in other groups, I suspect that might not be a very good control. E.g. if your daughter went on to join a different type of group that she did fit in with better, t
139.
by redcalx 10y ago
Thanks. Seems they were acutely aware of this; it's the first thing discussed in the paper: http://jech.bmj.com/content/early/2016/10/05/jech-2016-20789... They're comparing with people wh
140.
by redcalx 10y ago
Link to the paper: http://jech.bmj.com/content/early/2016/10/05/jech-2016-20789...
141.
by redcalx 10y ago
You're conflating 'experiencing anxiety' with 'some underlying condition that increases the tendency to experience anxiety (and it's severity)'. The first cohort is a subgroup of the second. Or just switch anxi
142.
by redcalx 10y ago
There is a selection bias issue here. E.g. if there were some underling genetic disorder that causes anxiety, then that person is less likely to join a group.
143.
by redcalx 10y ago
What can happen will happen.
144.
by redcalx 10y ago
I agree. In fact if they inflate the money supply they devalue the currency that the debts are denominated in, so there's an incentive to inflate and there's no money to spare to reverse QE anyway, so the bonds remain in existen
145.
by redcalx 10y ago
Reverse the creation process... creation consists of the central bank creating new money, and the government creating a new bond. Central bank buys the bond and the gov gets the money and can spend it on welfare or whatever. To reverse the
146.
by redcalx 10y ago
> Before 1971, the US Dollar was worth exactly 1/35th troy ounce of gold Sort of. The US gov committed itself legally to redeeming gold at a fixed stated price. It was an untenable position since by 1971 there wasn't anywhere n
147.
by redcalx 10y ago
> There is certainly an enormous inflation of the money supply Of M0 or 'narrow' money, yes. But the broader money supply was shrinking as loans defaulted. Arguably QE was an attempt to equalise the total (broad) money supply,
148.
by redcalx 10y ago
I'm increasingly of the opinion that bitcoin has all the qualities required for international bank transfers and settlements.
149.
by redcalx 10y ago
You can sort of ballpark the bitcoin energy usage by assuming all mined coins are sold at the current exchange rate, and used to buy electricity at a reasonable average for the world... 12.5 BTC every 10 mins => 12.5 / 600 per secon
150.
by redcalx 10y ago
Back in the days when CPU speed was measured in single digit MHZ (e.g. Amiga 68000 at 7mhz, ZX Spectrum at 6Mhz?), I had a hard time hearing anything other than CPU noise on standard FM radios. You could indeed hear algorithms running very

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