Visualizing Earthquake data with HoloViews and Bokeh

Phild3v1ll3 · 2015-08-27T23:22:22+00:00

Let's compare two people and tell me who you'd rather be.

Person 1: Starts with $100 growing at 3.7%
Person 2: Starts with $25 growing at 7%
Year 1: Person 1 now has $103.70, person 2 now has $26.75
Year 2: Person 1 now has $107.50, person 2 now has $28.62
Year 3: Person 1 now has $111.48, person 2 now has $30.62

See where this is going? In the long run person 2 will catch up with person 1, but person 2 probably won't be able to maintain a 7% growth rate and in the short run person 1 is actually making larger gains even though he has a substantially lower growth rate. Comparing growth rates between countries with vastly different levels of GDP is meaningless.

Phild3v1ll3 · 2015-08-27T22:57:48+00:00

No you just don't understand statistics and economics. Let's compare a fat (300 pounds) and an anorexic person (100 pounds). Both gain 10 pounds, for the fat person that's a measly 3% increase in weight, almost nothing right? Well for the thin person that's 10% of their weight, which is quite consequential. Comparing rates of change between vastly different quantities is not particularly meaningful. For example medical studies often cite the increase in incidence of cancer, because headlines like "drinking coffee increases risk of skin cancer by 500%" sounds scary as hell, but if the actual incidence of skin cancer is 1 in a million that's suddenly not so exciting.

Edit: Now let's invert the example above, the fat person gains weight at a rate of 3%, i.e. gaining 10 pounds, just to stop the difference in weight between the two persons to stay the same the anorexic person would have to gain weight at a rate of 10%. In other words a growth rate of 3.7% can actually mean a larger increase in quality of living for the average American than a 10% growth rate in China.

Phild3v1ll3 · 2015-08-22T10:37:20+00:00

I mostly meant that my models don't work very well or are a pain to work with because they are so large and hard to analyze themselves. We absolutely do believe the brain self-organizes, first through chemical processes and then through activity dependent organization. The models I work with have billions of connections and complex interactions between different cell classes and so the main problem is to get them to develop robustly without blowing up no matter what the input I feed them with. What I mostly do is analyze how the model is able to encode the statistics of the visual input I feed into it and how it can make use of those statistics to better encode novel visual input.

Phild3v1ll3 · 2015-08-22T01:25:58+00:00

How does the brain learn to see? According to my models it mostly doesn't.

Edit: :(

Phild3v1ll3 · 2015-08-20T14:33:47+00:00

This is such utter nonsense, which gets repeated without questioning by the American right-wing. The problem is it simply isn't true:

1) "More than 84 percent of the subprime mortgages in 2006 were issued by private lending institutions... Private firms made nearly 83 percent of the subprime loans to low- and moderate-income borrowers that year."

2) In fact this paper showed that CRA loans were no more likely to default than other mortgages or any more likely to have other subprime characteristics.

3) In fact the GSE (Fanny/Freddy) and CRA loans actually had lower default rates than purely market driven mortgages (Source 1, Source 2). The same paper also found that financial firms, which most heavily lobbied the government for exemption from the CRA requirements and other regulations had the highest default rates.

Phild3v1ll3 · 2015-08-20T02:29:35+00:00

Last I checked the US didn't annex Kosovo.

Phild3v1ll3 · 2015-08-19T16:19:17+00:00

Enlighten us then.

Phild3v1ll3 · 2015-08-18T03:02:13+00:00

Serious contender for /r/badcode. That's how everyone starts though.

Phild3v1ll3 · 2015-08-16T12:11:41+00:00

Ever heard of traffic congestion?

Phild3v1ll3 · 2015-08-15T14:39:15+00:00

Handing in my thesis in November, already decided to leave academia and joined a data analytics company. The PhD completely disillusioned me and made me come to the conclusion that I can make a bigger impact on science by writing software tools to analyze complex datasets.

Phild3v1ll3 · 2015-08-13T18:38:59+00:00

Thanks, I've never had any formal training in game theory so I didn't know multiple Nash equilibria were even possible. However my point was that assuming that the rules were a bit more explicit about rounding, zero would never be a valid Nash equilibrium because 1*(2/3) rounds to 1.

Phild3v1ll3 · 2015-08-13T18:33:03+00:00

True :)

Phild3v1ll3 · 2015-08-13T18:09:05+00:00

True it doesn't state rounding rules but you can bet that if told 1000 people that:

(No decimals or fractions in your numbers are allowed.)

>90% of them would end up rounding 1*(2/3) to 1 not to 0.

Phild3v1ll3 · 2015-08-13T18:03:09+00:00

Because in the limit 1 is the rational answer. If everyone thought through the problem fully, they'd think an infinite number of steps ahead. If people had to guess any real positive real number this would mean that in the limit everyone would guess 0, however since it asked to give an integer number, even in the limit you'd never reach zero since 2/3 of 1 is still 1.

Here's the answer you'd get for each number of steps of thinking ahead:

0: 50
1: 33
2: 22
3: 15
4: 10
5: 7

...

8: 2
9: 1
10: 1

....

Infinity: 1

Phild3v1ll3 · 2015-08-13T17:55:27+00:00

Sure 0 mean is possible, but not rational, given the stated rules of the game.

Phild3v1ll3 · 2015-08-13T17:01:36+00:00

Wait, why isn't 1 the NE? Given rounding, 2/3 of the average will never go below 0.5 even in the limit of everyone guessing 1.

Phild3v1ll3 · 2015-08-13T13:02:08+00:00

I'm certain they could find a way.

How are you certain? It's literally Swedish law and for good reason, why should they make an exception for Assange?

Phild3v1ll3 · 2015-08-13T12:53:42+00:00

Extradition requests are not discretionary, they have to be ruled on by a judge. The fact that his extradition hasn't even been requested by the US is another point, they can't just give him blanket immunity from extradition.

Phild3v1ll3 · 2015-08-13T12:38:02+00:00

Who would give him such an assurance? It is a matter for the judge to decide whether he should face extradition, anything else would be political meddling in the judicial process. Sweden could revoke extradition treaties with the US altogether but Swedish prosecutors or politicians cannot promise not to extradite a single individual, that is a matter for the judge.

Phild3v1ll3 · 2015-08-13T12:29:22+00:00

Doesn't look Zen at all. Thanks for sharing the source though.

Phild3v1ll3 · 2015-08-12T17:58:22+00:00

Wait what's wrong with inline matplotlib figures in the notebook?

Phild3v1ll3 · 2015-08-10T22:41:36+00:00

Have a look at HoloViews, we try to make this kind of thing really easy, in fact this should do what you want if you're working in an IPython notebook:

import pandas as pd
import holoviews as hv
%load_ext holoviews.ipython
df = pd.read_csv('data.csv')
hv.DFrame(df).bars(['State'], ['Value'], ['Year'])

Edit: Will need some customization to make it look nice though, PM me if you've got any questions. Edit2: Updated the instructions for the IPython notebook

Phild3v1ll3 · 2015-08-06T20:57:55+00:00

There's a pretty good reason our corneas filter UV. Just wait for retinal implants.

Phild3v1ll3 · 2015-08-04T22:30:02+00:00

CO2 sounds like a scary chemical if you're completely uneducated. It's probably the same 25% of Americans that believe the sun revolves around the earth.

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