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Is there a better document somewhere about redis idioms?

    state = [st for s in state for st in states[(s,letter)]]

can be read as

    new_state = []
    for s in state:
        for st in states[(s, letter)]:
            new_state.append(st)
    state = new_state

tudorachimon Ask HN: What other sites do you regular?

quora, wilmott forums

tudorachimon Death By Regulation: FaceCash Is Shutting Down in California

For more background from the founder of FaceCash:

http://www.quora.com/Aaron-Greenspan/Why-Im-Furious-with-Sil... http://www.quora.com/Aaron-Greenspan/In-Thirty-Days-Payments...

tudorachimon WakeMate 2.0 - For Real, This Time.

If they can't detect when you're not in REM sleep and wake you up at that point, what's the point of the device?

tudorachimon Google Reveals Its Stealth Social Project, Google+

There is no facebook import option yet.

tudorachimon Google Reveals Its Stealth Social Project, Google+

It is just a demo limitation (I'm using the product right now).

tudorachimon Startup Fitness: An Entrepreneur's Guide to Working Out

A better discussion: http://www.quora.com/What-exercise-regimens-are-best-for-ext...

tudorachimon The Bitcoin Crash

The delay with getting your money into/out of bitcoin is too long to allow for that kind of arbitrage. The exchange owner could easily get away with the described practices.

tudorachimon Mt. Gox trades rolled back, thief only got away with $1K in BTC

False; there were many trades executed near $0 (see http://leanback.eu/bitcoin/plots/20110619195756-mtgox.png).

tudorachimon Chat with people in Apple Stores (iChat | AIM)

How is this implemented?

tudorachimon How to handle 1000s of concurrent users on a 360MB VPS

It's clear from his post that he found varnish to be faster.

tudorachimon Why (UK) train departure information is not open data.

What kind of data?

tudorachimon Creator of "Dirty Jobs" Mike Rowe testifies to Congress

"Maybe some people just have a knack for this stuff" is a different way of saying "I was also raised on a farm and took wood shop and engine shop."

tudorachimon Zeus crimeware source code leaked

Nice, this malware has better documentation than most open source projects I've used.

tudorachimon Spotify Programming Challenge Registration

They're looking for EU-based talent.

tudorachimon GitHub Jobs gets new site, iPhone app, and API

Wow, these guys produce a ridiculous amount of output for the size of their team...

tudorachimon PyCon 2011 Video: Advanced Network Architectures With ZeroMQ, by Zed Shaw

That main reason doesn't apply only to zeromq, though; with google's protobuf you can write an rpc layer on top of pretty much any channel in ten or twenty lines of code.

tudorachimon The technology behind Convore

Interesting that tornado wasn't mentioned along with node.js. Any reasons why?

tudorachimon Hiding Nobel prizes in plain sight

The capacity for being pedantic isn't the socially annoying part; rather, it is the curious unwillingness of some nerds to exercise restraint that is.

tudorachimon Look Out Quora, InboxQ (YC W10) Takes Q&A Off-Site And Onto Twitter

This is intended for one-off questions that can be answered in 140 characters; the markets couldn't be more different.

tudorachimon DARPA's new memristor-based approach to AI

There wouldn't be a benefit because we don't know how to use neural networks to do AI yet.

tudorachimon The Geek-Kings of Smut

False. In 2010 facebook's was "not too far off" from 1.1b [1], whereas Zynga's was around half that [2].

[1] http://techcrunch.com/2010/06/22/facebook-revenues/ [2] http://techcrunch.com/2010/05/03/zynga-revenue/

tudorachimon Write your passwords down

From the random generator's website: "Every one is completely random (maximum entropy) without any pattern, and the cryptographically-strong pseudo random number generator we use guarantees that no similar strings will ever be produced again."

Interesting guarantee for a random number generator to provide...

tudorachimon Lisp developer walks away with Google AI contest

Looks like alpha beta with a good evaluation function, move ordering, and a changing depth parameter (not sure about this one, though).

tudorachimon Hacked Kinect is now a 3D video capture tool

You could also just use pretty standard scanmatching algorithms to build a model from a sequence of scans from one camera (i.e. waving it around at a reasonable rate).

tudorachimon WePay and DailyBooth Hackathon

Why not?

tudorachimon [dead]

"I have no idea if it’s true or not, but the scene in The Social Network in which Zuck is ‘interviewing’ summer interns by having them hack a box while doing shots says a huge amount about how to only hire the best people."

Yeah, like how not to do it.

tudorachimon Good, freely-available textbooks in machine learning

The most promising approaches for neural nets these days involve learning generative models using Restricted Boltzmann Machines (RBMs). Geoffrey Hinton at UToronto has some good seminal papers on these, like http://www.cs.toronto.edu/~hinton/absps/ncfast.pdf. See http://www.cs.toronto.edu/~hinton/ for excellent videos of digit generation / classification.

As a note, this approach outperforms all others (sans tweaks), whereas neural nets used to be beaten by SVMs and the like.