lkozma

41 ms·

361.
Scott Aaronson adds $200K to prize money if P≠NP proof correct(scottaaronson.com)
56 points by lkozma 16y ago|22 comments
362.
by lkozma 16y ago
I skimmed through the synopsis but this philosophical statement baffles me (although obviously it is unrelated to the validity or invalidity of the proof): "The implications of [P ?= NP] on the general philosophical question of [..] whether
363.
by lkozma 16y ago
Acne
364.
by lkozma 16y ago
A slightly related issue is that keyboards are usually incredibly dirty (especially those in public places). A habbit of touching your face after having typed on the keyboard can cause all sorts of problems.
365.
by lkozma 16y ago
Reddit comes up as a topic in MBA courses ?
366.
by lkozma 16y ago
Also worth reading a rebuttal: http://unqualified-reservations.blogspot.com/2009/08/from-cr...
367.
by lkozma 16y ago
Elo system is really cool, when I was a kid, I thought the name Élő (the inventor's name) is meant literally, as it means "live" in Hungarian, so I thought it is just something that is being constantly updated, which it is in fact.
368.
by lkozma 16y ago
I guess in older times even dying long after breeding could have had an effect: not being able to look after children => less chance of survival of children carrying same gene. You are right that in modern society this effect is not so
369.
by lkozma 16y ago
But could this work with a non-Lamarkian explanation: say most people would smoke, some of them have a random mutation which makes them resistant to it, so they would be more likely to have children and care for them, so the trait would bec
370.
by lkozma 16y ago
That's true, but ultimately what causes wars might have to do with the impulses of people as much as with the "international situation". While institutions can be put in place that seem to make war less likely, people today are not that dif
371.
by lkozma 16y ago
Yeah, he gets repetitive for sure. But I still think the core of his message is sound and (somewhat) counterintuitive (to me at least): you can lose most bets if you win the rare large ones, people underestimate the probability of outlier e
372.
by lkozma 16y ago
Surely you are joking, Mr. Feynman. D. MacKay: Sustainable energy - without the hot air. N. Taleb: Fooled by randomness. M. Karinthy: A journey round my skull.
373.
Alan Kay: Significant new inventions in computing since 1980?(stackoverflow.com)
12 points by lkozma 16y ago|0 comments
374.
by lkozma 16y ago
I imagined reading that aloud in thick Swedish accent to get in the mood for how serious Erlang is :) (just joking: I'm refering to the famous Erlang demo video)
375.
by lkozma 16y ago
That must be the most depressing thing I read in quite a while.
376.
by lkozma 16y ago
I don't disagree, I just meant it from a realistic/pessimistic point of view.
377.
Ask HN: What are the biggest (simple) ideas in recent history of computing?
2 points by lkozma 16y ago|2 comments
378.
by lkozma 16y ago
Reminds me of the story of that company that was called Bradford & Reed, even though the founders had different names, just because it sounded serious and imposing. Edit: ah, found it, it was Andrew Warner's story.
379.
by lkozma 16y ago
I think there are new banks starting up and some probably see themselves as high tech operations. But in that sector that means J2EE and not Ruby on Rails.
380.
by lkozma 16y ago
> One of the strengths of having most of the vectors contain 0 values is that it makes computation much, much easier, even if the vector size is so large. I can quite quickly dismiss any vectors that have 0 dimensions in common. I agree
381.
by lkozma 16y ago
Yeah, there is always the danger that the data is just too little or too noisy. But the technical issues you mention (normalization, subtracting bias, using temporal data) all came up in the netflix movie recommendation competition as well
382.
by lkozma 16y ago
Good suggestion for dimensionality reduction. Most ready made packages you will find under the name PCA though (principal component analysis). It's almost always good to reduce dimensionality first, depending on the component number you cho
383.
by lkozma 16y ago
OK, I got it. Well, each URL is still a (60,000)-dimensional vector, just that 59990 entries happen to be zero and the 10 that are non-zero have certain values which show how many times that tag was chosen. Problem is that not the same ten
384.
by lkozma 16y ago
Well, the more internal links and the less external links you have, the better for pagerank. PR just formalizes the random surfer model: what is the probability that someone who just randomly clicks links is on your page after n clicks.
385.
by lkozma 16y ago
Another suggestion: on the result page make the main link for each result go to the "moreofit" page of the given link, rather than the actual external websites. (just like you do for the top pages). You want to keep people on your site :) a
386.
by lkozma 16y ago
Oh, I got it now, you use the tags attached to the link. First I thought that you use the individual bookmarking of each user which would be a HUGE binary, sparse matrix, however, that could really be reduced with PCA and it would give a "
387.
by lkozma 16y ago
I didn't start the thread, but here's a tweak of this idea: "You enter a URL you want to monitor." OR - I copy/paste a line of javascript of your service on my site, like google analytics... your service then figures out which are the compe
388.
by lkozma 16y ago
Interesting, this is almost exactly the same thing that I thought about about 5 days ago. I even wrote it up at: http://www.lkozma.net/blogs (second idea)
389.
by lkozma 16y ago
Nice idea, well done. Probably you could use PCA to reduce the dimensionality of the data before doing the nn search. This seems a bit like the netflix movie recommendations data so you could probably use ideas from there. Sorry, probably y
390.
by lkozma 16y ago
"from a combinator" - a freudian slip :)

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