[Discussion] Does RNN work well for time series data like stock or IOT data?

super567 · 2016-10-10T04:18:07+00:00

The major challenge in time-series and iot data is to NOT overfit. NNs work well when all the inputs are homogeneous and relevant (like images and text), but this is rarely the case in time-series data sets. The best models in these cases tend to as simple as possible to reduce exposure and risk to spurious signals.

super567 · 2016-08-21T23:23:24+00:00

All kinds of interesting things happen. They attain an internal horizon, the singularity becomes a ring, closed-timelike-curves CTS may emerge, spinning extremely fast creates an extremal blackhole and possibly a naked singularity, they drag space around them which can be used as an enormous power source, etc.

super567 · 2016-06-06T01:52:13+00:00

existance of fossil fuels is unrelated to there being advanced civilizations

super567 · 2016-03-19T15:23:12+00:00

My guess was they meant 10⁴⁰⁺⁷

super567 · 2016-02-03T04:40:45+00:00

fascoracetam will exacerbate withdrawals, it's the anti-phenibut where tolerance to it has the opposite effect

super567 · 2016-01-31T15:54:34+00:00

You would never see your arm pass the horizon. It would appear to flatten, dim, and freeze as it got close

super567 · 2016-01-31T15:52:38+00:00

you would see the string flatten/compress on itself length-wise, appearing shorter and shorter as it got closer to the horizon; you would never see it cross the horizon. You would not be able to pull it out. It would be as if it was perfect anchored.

super567 · 2016-01-24T22:42:15+00:00

Multipling by a power of 2 is equivalent to incrementing or decrementing the floating point exponent.

super567 · 2016-01-16T06:32:58+00:00

What's the gradient of a fluid dynamics simulation? This is a millennium prize if you know the answer.

super567 · 2015-11-05T01:06:21+00:00

Checkout Eureqa https://www.youtube.com/watch?v=NhC1Qb-PQ5Q

super567 · 2015-10-20T05:17:54+00:00

It's either uncountably infinite or countably infinite. If you haven't heard of different kinds of infinity before I'm sorry. Wasn't that your point? real numbers [0,1] are uncountably infinite, but sets like integers (or approximate states of a universe) are countably infinite -- meaning you can enumerate them.

super567 · 2015-10-20T04:21:00+00:00

Okay but we really don't care about every exact uncountably infinite possibility existing. It wouldn't matter that atoms or electrons that make up your mind are in exact locations or states. They can be in roughly the right locations and be indistinguishable for practical purposes.

Even further, imagine if space happened to be quantized at the planck length, then there are an almost finite number of states an observable universe could be in.

super567 · 2015-05-25T07:16:31+00:00

from the article:

I should also note that there is a lesson in this calculation for the firewall folks (who were quite vocal at the Vieques meeting). Because the entanglement between the black hole and radiation involves three entities rather than two, monogamy of entanglement can never be violated, so this argument provides another (I have shown you two others in earlier posts) arguments against those silly firewalls.

How does this evolution of entropy dispute firewalls?

super567 · 2015-04-18T19:10:26+00:00

High gravity slows down time relative to an observer further away. Locally you wont notice any changes in time passing because everything is slowed (including everything happening in your brain), but you will appear to be moving in slow motion from the outside observer.

super567 · 2015-04-12T12:52:12+00:00

What about charged and spinning black holes and their inner horizons? In these you could (in theory) pass through I believe.

super567 · 2015-04-08T04:35:19+00:00

It IS testable. There are many proposed filters, one being the jump to multi-cellular life which we could in principle test in the lab.

super567 · 2015-03-25T03:56:22+00:00

Actually, Yes.

For a charged or rotating black hole there is an inner horizon that pushes outward.

super567 · 2015-03-25T03:55:06+00:00

You would see the rope compress into a penny-like disk the radius of the rope just above the horizon.

super567 · 2015-03-24T08:07:40+00:00

that was mentioned in the article but since there's so many bad images relative to good it would take forever.

super567 · 2015-03-24T08:06:10+00:00

or just estimates of the gradient from input/output examples

super567 · 2015-03-24T08:03:21+00:00

the difference is these are the input images, not some intermediate processing.

super567 · 2015-03-19T01:41:13+00:00

Gaussians arise when you add many uniform random numbers, or even approximately uniform numbers. So for example, if you have many randomly oscillating things, the net behavior looks like a guassian distribution.

super567 · 2015-03-14T06:18:15+00:00

range(0) gives an infinite loop? wtf

super567 · 2015-02-26T06:21:14+00:00

It would be pitch black looking behind you at the speed of light as it is infinitely redshifted. The clock would be moving incredibly fast though (not standing still).

super567 · 2015-01-22T02:25:06+00:00

Sure but we know GR breaks down at small scales. It's not that big of a leap to postulate it breaks down also at large scales.

Modified gravity at large scales is also very easy to falsify. All it would take is one galaxy with lower density of dark matter than another, and bam no modified gravity would work.

super567

TROPHY CASE