hrzn

15 ms·

31.
Routing Traveling Salesmen on Random Graphs Using Reinforcement Learning(medium.com)
5 points by hrzn 7y ago|1 comments
32.
by hrzn 7y ago
"Why We Sleep" by Matthew Walker is an excellent book for those interested in what science has to say about sleep (disclaimer: it's excessively good for you)
33.
Once Paralyzed, Three Men Take Steps Again with Spinal Implant(nytimes.com)
34 points by hrzn 8y ago|0 comments
34.
by hrzn 8y ago
What they meant is that we evolved in a way that made teenagers having shifted cycles, going to sleep later and waking up later. We're not living in tribes anymore, but evolution is slow and we still cary these biological traits. It th
35.
by hrzn 9y ago
Thanks! Since then I actually took a bit of time to read the whitepaper of Raiblocks and bought a few more. The tech looks nice.
36.
by hrzn 9y ago
I'll give it a try as well :) xrb_1pjzyhtcjwg5u3ot88dfa53bu6tf31syixpz78t9mq9bcfmjo81j7sjysox1
37.
Show HN: HyperLogLog in Python(github.com)
2 points by hrzn 9y ago|0 comments
38.
by hrzn 10y ago
I encourage you to consider EPFL or ETH in Switzerland. Both are top-level universities in CS, where Iranians are welcome. The next deadline to apply to EPFL Phd school (EDIC) is in April. I wish you the best!
39.
by hrzn 10y ago
I Absolutely agree. Overall it's probably a mix of many things like luck, talent, insider information, ability to go against dominant investing ideas, where you start in life (if you are wealthy at birth that's equivalent to many
40.
by hrzn 10y ago
> what is more improbable? that he is flipping a coin 40 times and got head all the time or that billions of people cant see what he sees? Actually, the probability of getting a head 40 times is 1/2^40, which is 1 in about 1.1 trill
41.
by hrzn 10y ago
Gain background knowledge first, it will make your life much easier. It will also make the difference between just running black box libraries and understanding what's happening. Make sure you're comfortable with linear algebra (m
42.
by hrzn 10y ago
I find it quite dangerous to think most people are too naive to vote on important issues. Trained politicians are also very much impacted by gut reactions and irrational behavior (though in favour of one's own party/career/et
43.
by hrzn 10y ago
"And yet a Pareto distribution still has a mean, and the sampling distribution of that mean is approximately normally distributed." This is often wrong. The central limit theorem requires finite variance and some (yet common) Pare
44.
How Future Wi-Fi Networks Should Use Spectrum and Time(hrzn.ch)
3 points by hrzn 10y ago|1 comments
45.
First TV Image of Mars(directedplay.com)
1 points by hrzn 11y ago|0 comments
46.
by hrzn 11y ago
I don't think that the author assumes the causation that you mention. He says that growth is composed of two parts. One part depends on energy production/consumption and the other part does not -- If you don't like the causat
47.
by hrzn 11y ago
The maths models used in economics are rarely checked against real-world data, but when they are they often turn out to be wrong. A major instance of this problem comes from models used for trading, which often assume Gaussian distributions
48.
by hrzn 12y ago
I'm thinking about it, but the current implementation that I wrote (which runs on OpenWrt) is currently somewhat too constrained to my Atheros hardware. I'll try to improve it though.
49.
by hrzn 12y ago
Usually, 802.11 devices don't turn off between transmissions, so this has no effect. In fact, it's actually the opposite; using a narrower channel requires a slower clock rate, which also significantly reduces power consumption of
50.
by hrzn 12y ago
Well, I think that 802.11 is not that bad. Conceptually, the way it schedules packet transmissions over time turns out to be quite efficient (at least in WLANs scenarios), even though this efficiency is somewhat reduced with newer and faste
51.
by hrzn 12y ago
All 802.11n devices supporting the 5G band support at least a bandwidth 20 MHz (as well as 40 MHz). In addition, you can use 5 and 10 MHz as well on some Atheros devices with open source drivers.
52.
by hrzn 12y ago
The algorithm takes into account the interference of partially overlapping channels. In fact, it is part of the optimization procedure to minimize this overlap (globally, over all WLANs, but in a decentralized way), while still using as muc
53.
by hrzn 12y ago
You're right; but actually the mention of 13 channels was just for the example. The algorithm works exactly in the same way for the 5G band as well (where you have similar problems as soon as you have a few neighbors using recent Wi-Fi
54.
by hrzn 12y ago
I'm the main inventor. Thanks a lot for the positive feedback! You are actually right, similar ideas have already been proposed before. The main novelty here is that the algorithm adapts not only the channel (center frequency), but als