skysight-inc/HackerNews huggingface dataset:
Well, you can walk spatial partitions with trees in ways that become clunky with hashes (taking a branch means all children are 'near' each other). Also, B-trees might work better in cached architectures -- this is certainly true with respect to disk accesses but I'm not sure if that carries over to L3/L2/L1 cache.
It's possible. There are parallels between main memory and disks. A disk seek gets you hundreds or thousands of bytes and requires (blocking for) millions of cpu cycles; a cache line fill gets you 64 (sometimes) bytes and requires (spinning for) hundreds of cpu cycles. You want to minimize both of those, but with memory, the difference is much less dramatic.
Should be gets you past WSJ paywall for now. Eventually WSJ is going to figure out how to block this. Then the cycle repeats the extension author figures out how to get around that....
Good point - if cold showers were the only thing you were doing to build self-discipline, that would be rather silly. I already work out almost everyday, put myself in uncomfortable social situations and other "character-building" activities. This is just one more thing I've added to the mix and that I'm sharing my thoughts on.
Google's AdMeld Acquisition: The need for diabolical liqudity
Talk about first world problems, it's almost embarrassing that you have to seek out discomfort and the only way to do it is to take a cold shower.
Of course, but again, that doesn't explain why other tablets are failing today. Motorola's Xoom contains those same parts, yet its sales are terrible. Because it sucks.
Interesting. Is this actually real-time, or are you just frequently polling feed urls from a central source and then pushing them to the clients on a case-by-case basis? I'm assuming the latter, since the former has traditionally required participation on the part of the feed provider, in the form of something like Google's PubSubHubBub.
Fair question. I don't intend to come off as masochistic but I can understand if it appears this way. I'm just sharing something I've found to add value to my life and suggesting that others try it and see if it also gives them value.
Tracy Morgan Apologizes for Anti-Gay Comments
“While I am an equal opportunity jokester, and my friends know what is in my heart, even in a comedy club this clearly went too far and was not funny in any context,” Tracy Morgan says he’s sorry for telling an audience at a June 3 comedy show that he’d “pull out a knife and stab” his son if he were gay.
It's more or less the same technology since 1957.
It's the most reliable rocket in the world.

http://en.wikipedia.org/wiki/R-7_%28rocket_family%29
The App Store has also demonstrated that 0.00 is no longer a magic number when your payment information is on file.

Great insight. I'm writing that down somewhere.
College grads bring parents to job interviews
"There are Jewish anti-Semites, too."

Now that is anti-intellectual, see-

Semitic is a Language Group, Not a Race or Ethnic Group

http://www.counterpunch.org/hamod07122003.html

I'm a geek, I'm not anti-intellectual however I am anti-BS, whether it is the above statement or whether it is any of the intellectually bankrupt -isms, Marxism, Fascism etc or religious dogma that goes against all the evidence for evolution or other scientifically validated theories. All of which have been promoted as being "intellectual", Fascism was famously promoted at Harvard before WWII, Marxism has been promoted at innumerable universities and now we have creationism attempting to be "intellectual" via the idea that there is a "controversy" that pits it along side the theory of evolution in terms of being able to explain how we as a species came to be the way we are. I'm also anti-prophet, that is I do not believe that there is any human being that has all the answers to all questions. Experts to me are useful as long as they are not experts in the domains of BS.
Corporations: Don't Hate the Player. Hate the Game..
it's real-time when possible (if the publishers are using PSHB) otherwise it is polled as timely as possible. most posts come through within a few minutes of being posted.
Chartio develops non-blocking MySQL queries using Tornado
The Backfire Effect. Or: Why you can never win an argument online
I've seen the math behind it and you are definitely correct.
It's refreshing to see a non tech solution every now and then. As technologists we have to learn when and when not to apply technology solutions. This just happens to be one of those cases.
Sidenote: Anyone else catch (Groupon director) Brad Keywell's talk at MidVentures Chicago last year? All that Ayn Rand stuff?? Bizarre.
Does anyone else feel like the cheers of success for iCloud are a little premature? It's amazing that since it's Apple we automatically believe the "No, really I mean it this time!". Shouldn't previous performance be taken into consideration (.Mac, MobileMe)? Boy who cries cloud?

Until iCloud is launched (not til the fall), all we have is old broken promises, vapourware, and some very expensive data centres.

I want iCloud to live up to the hype as much as anyone. But at this point the only thing we should be calling a success is the awesome power of the Jobs Distortion Field. He's the tech equivalent of a superstar athlete in their prime and the top of their game - evidenced by articles like these.
Makes you wonder why he didn't exit when he had a chance at $6 billion. I doubt groupon will ever see that type of valuation again considering how terrible their coupons have become and how natural competitors in the space like local papers and yelp are beginning to gain traction.
How high can you go? Gasoline prices in the Netherlands
For US people: http://lmgtfy.com/?q=1.70+euros+per+liter+to+dollars+per+gal...
Three suspected members of Anonymous arrested in Spain
So, are strings in PHP cstrings, or are they a length/address pair?
I'm in Portland, Oregon, and, if this town is any sort of trend leader, I think unicycles are the next fixed-gears.
I wish people stopped talking dirt about these guys and their IPO. Investors aren't being forced to buy the stock, consumers aren't being forced to buy groupons and merchants aren't certainly being forced to participate in their program.

While Lefkofsky is selling his stock at will, you should note that the CEO is holding on to most of his portion of the company.

Everybody and their cousin worries about their expenses, and that is totally understandable, but let us not forget how many acquisitions they have made in the past. If most of the money they have raised went into founders' pockets, then most of the income they have made went into buying other sizeable companies and paying some 7000 employees.

There are 15M small businesses in the US. Groupon made nearly $3B last year servicing only less than half a percent of those. For better or for worse, Groupon could be bigger than Google and turn a solid profit.
For the previous international SMS service (which was also in beta, though admittedly, not very clearly denoted as such) we notified those that we believed would be impacted by the change. I'm sorry that you did not receive a notification. That should not have happened that way.

Every customer, regardless of volume, is important to us. We're opening up the intl SMS beta to more and more customers every day. I'm happy to try to work something out with you. If we can't get you up and running, I'll refund your $20. Email me: jsheehan@twilio.com
I'd argue that astronomy does save lives! It does it through inspiring people to become more educated, and giving them a greater perspective on the nature of our world. Hopefully, that helps limit future conflict, warfare and environmental destruction.

This is probably not as direct as what you do now, though. I am glad you have found something that works better for you :)
45 Visionary Examples of Creative Photography #5
Declaring that you've never programmed in Java, then cherry-picking a type from the language and asking why Python doesn't have it, is quite ironic, given the vast differences in typing between the two languages.
This criticism seems like a non sequitur. The author is not claiming to be free of Google genetically, he's trying to free himself from actively using Google services. So what if he had to use Google in the past to build up his knowledge about how to use the internet effectively? He doesn't have to continue to use it.

And re:

> In this way I kind of think the article is essentially saying "It is easy to live without parents once you're already an adult." Trivially true, but greatly mis-understanding of the importance that his search-parents had on him.

I wish it were more true that Google was something you grew out of in this fashion. People instead seem to become more and more reliant on it over time.
> The problem is, why should we assume that the price is the only ( or the most relevant ) proxy for "value it creates for people"...

If you like, think of value as having economic and non-economic components. You're charging money for the economic value.
Javascript Closures - a comprehensive overview
There was a paper on arXiv a while ago that looked into this, and concluded that while there are enough postdocs to go around, only 25% of postdocs can count on a permanent position. And of course, as time goes on, the number of postdocs keep swelling as people pile up trying to get those jobs...

I'm close to getting out, I've enjoyed my time doing astrophysics but it would probably have been a career-enhancing decision to have done so a while ago...
I've been using rapportive for a few months and love it. It provides additional context about the person you're corresponding with - social profiles, crunchbase info, etc. It occasionally displays completely innacurate info, though. Somebody else using it recently congratulated me on a recent multimillion dollar investment... unfortunately that wasn't me, but a VC with the same name.
Actually they can, and yes they are bleeding cash and yes they are 'upside down' in the parlance, but if they lower the offering price and still can't get it fully subscribed they are stuck. They can go back to their investors for a bridge loan, or issue warrants, or try another private (probably down) round.

Two very interesting things have come out of Groupon's history so far, the first is that they turned down a $6B buyout (which seemed amazing to me at the time) and then they did a fund raise where most of the stock was insiders selling.

That particular combination makes me wonder if the buyout was rejected because the way money would have been shared around was stipulated by previous term agreements, and some of the investors didn't want that, so they did the series D or what ever it was which allowed them to funnel money to specific investors, so that now if they take a hair cut on valuation those investors are 'protected.'

So the fact that they are bleeding cash will force some sort of financial transaction to occur (buyout, bridge loan, chapter 11 bankruptcy), if they are having a hard time getting the offering fully subscribed they may be shopping the company around, and if they are doing that they are in a much weaker position than they were before.
You have to maintain the dependency graph anyway to build the system. And no, maintaining the dependency graph is not entirely manual.
Technologies That Will Shape the Web
HPCwire: Chinese Super Breaks World Record in Application Performance
Those who would find this useful are those who have not figured out that following these basic principles WORKS. Too many teams think bypassing mundane correct process will somehow buy them time. There is no magic or secret to great success, only doing things right all the time.
Why you should always take shortcuts
Avoiding Failure - A not so inspiring story
Give the man some credit for starting 2 companies that went public and are profitable, selling another one for nearly a quarter of a billion, and now has been involved with the fastest growing startup in terms of revenue.
Good luck getting a clean shave under those conditions.

It sometimes amazes me what people think constitutes adversarial conditions, and testing oneself. Reaching down and turning a knob, then telling yourself that you're building character? Odd.

By the way, I loved the comments. They read like something I would have written as a twelve year old. "I'm like a Navy SEAL because I beat myself up every day with a cold shower! I'm tough!" My favorite is paleo guy:

But I also do it due to the paleo/primal lifestyle I’ve been adopting—the fact that we didn’t evolve bathing with the convenience of hot coals or temperature faucets and and that our bodies are probably designed to buck up and shower in less-than-ideal conditions.

Except that you'll find that frequency of bathing, and bathing as a social and relaxation mechanism, directly correlates with availability of hot water. Where there are hot springs, there are happy, relaxed locals.
what phone/app are you using? barcode scanner on my nexus s was able to read it right away off my screen, at a weird angle.
Dr. Ben Goertzel on Artificial Intelligence, Transhumanism and Open Source
Web apps became popular because the desktop was too unwieldy for the average person to deal with. The browser was easy to deal with in comparison. The situation with iOS is completely different. The main advantage that web apps have is sharing and collaboration but that is easier to accomplish than a web app being as smooth and looking native to the average user.
> vapourware

There's a beta. Register and download it.
disruptive project!
Would you like to share some specific reasons why people shouldn't engage in cold showers?

Would you like to share some sort of science proving that taking a cold shower has some health benefit over talking a hot shower?
Starting with Scheme in C++
Apologies for that! Our data is now extremely accurate, apart from our CrunchBase Raplet — which is in great need of tender loving care. We'll get on it.

In the meantime, hit me up at rahul@rapportive.com and I'll sort out the error for you :)
I really don't understand your point. I'm happy to learn things from Java and apply them in Python despite the fact that I never programmed Java.

Regarding the differences in typing between Java and Python: Despite of these differences, `flufl.enum` does work in Python, so I don't see how these differences are relevant.
Lately, I've been feeling more of this. I work in numerical simulations of galaxies, and I feel like people are just running simulations and writing papers without bothering to check things like sensitivity to the parametrized recipes for unresolved physics. What really irks me is that when you really do worry about these things, you just look like someone who can't produce compared to these people who are getting jobs without any repercussions from flip-flopping their results every couple of years. Because these simulations can be compared to reality only in very tangential ways, it's like there is no need to worry about being wrong...
This layout of this page feels like they are trying to sell you something.

Also now their database is down. Oops.
And probably be just as wrong. Trying to group people is always fraught with peril, but doing it in a dismissive way ("are, well,") is really not going to help the point. Italy isn't a mono-culture, neither is America.
Thanks for the compliments, rdl! When it comes to designer codes, I believe that function trumps form. There is definitely no point to designing a code if it cannot be scanned quickly and easily. The code in the TechCrunch article should definitely scan easily across any QR reader on any smartphone. That said, it is nearly impossible for us to test every reader on every phone. Assuming a designer code can be scanned easily (which is a requirement on every designer code we create), the benefits of branding the code are tremendous. Scanthrough rates shoot up when you use a designer code, and they definitely have the ability to become the talk of the town. We will put up examples of designer codes on http://www.paperlinks.com in the very near future so you can decide for yourselves!
The way I see it, learning to be uncomfortable is beside the point; it's about finding the positives, not ignoring the negatives. If you learn to be uncomfortable, you become complacent, and don't do things to improve your life in real, tangible ways, like, say, negotiating a better salary.

If there's a problem you need to solve with a method like this, that's great, but I would hesitate to recommend that people regularly incorporate unpleasant things into their daily life for the sole sake of them being unpleasant. That ultimately leaves you with less understanding of not only how to lead a pleasant life but also of how to improve the lives of the people around you, this latter goal being the core of entrepreneurship. E.g. if you try to use nothing but `cat` to edit files, you will never design a better text editor. If you walk to work, you won't be able to contribute to advances in vehicle technology.

Ultimately I think our goal as humans is to reduce that sort of thing, not to increase it; otherwise we might as well revert to nomadic tribalism. To quote Edward Abbey:

One final paragraph of advice: do not burn yourselves out. Be as I am — a reluctant enthusiast... a part-time crusader, a half-hearted fanatic. Save the other half of yourselves and your lives for pleasure and adventure. It is not enough to fight for the land; it is even more important to enjoy it. While you can. While it’s still here. So get out there and hunt and fish and mess around with your friends, ramble out yonder and explore the forests, climb the mountains, bag the peaks, run the rivers, breathe deep of that yet sweet and lucid air, sit quietly for a while and contemplate the precious stillness, the lovely, mysterious, and awesome space. Enjoy yourselves, keep your brain in your head and your head firmly attached to the body, the body active and alive, and I promise you this much; I promise you this one sweet victory over our enemies, over those desk-bound men and women with their hearts in a safe deposit box, and their eyes hypnotized by desk calculators. I promise you this; You will outlive the bastards.
The NYT story was both print and online. It's impossible to measure the direct traffic from the print version. Maybe another 1%?
Ask HN: Technical cost of a web startup?
I am working on a social networking concept and I'd like to make a prototype. I've got most of the know-how, but my problem is, I'm not sure how much capital to allocate to running my test.

Setting aside certain logistics (assume I pay myself nothing and I pay nothing for marketing/advertising) how much would you estimate it costs to maintain servers (using AWS for example) and scale to a reasonable level (200 users, 1k users, 5k users) per month? How quickly will that change?
heh, My Little Pony Bronies are popular on wired.com today
This is a banal point. Yes, separate compilation hurts performance. But that's what link-time optimization is for. GCC and LLVM alike can both do link-time optimization.

You might as well say "gcc with -O0 is slower than V8, therefore V8 is faster than gcc".
Good idea, not everything has to use a computer just because we have them.

It's only 150 sheets of paper too it's not like it's reams of the stuff (it's just about 1/4 of a ream) otherwise people would be tempted to use a laptop to be 'green'.

Local guy makes it to HN. And I'll be voting in October.
That's what was done.

https://github.com/infusion/PHP/commit/790d551ac9ef8e204b44f...
It's a science fiction story written in 1956.
There is a saying that when you scheme to make yourself and the company successful its called 'leadership' and when you scheme to make only yourself successful its called 'politics.' (some cynics add that if you make the company successful but not yourself its called 'stupidity' :-)

The exhortation 'go big or go home' is clearly a challenge to 'win' at all costs. How people internalize that challenge reflects on their character and their moral compass. Its all about what someone considers and 'acceptable cost' at that point.
Why the CEO ROI and brand marketing don't match
New York, NY - Multibillion-dollar hedge fund looking for an exceptional programmer to join our core development team.

We build the tools and engines used by the fund's portfolio managers, traders, quantitative analysts, and back office team to develop trading strategies, analyze risk, and manage day-to-day trading operations across a wide range of markets. We are language-agnostic, but would like someone who knows at least one general-purpose language (C++, C#, Java, etc.) and one get-it-done scripting language (Python, PERL, etc.) well enough to create rock-solid, production-quality systems.

Strong financial mathematics skills are obviously a plus, but those can be taught (and we are happy to teach you). What cannot be taught, and what we seek most, is an intense passion for programming and the desire to tackle the types of difficult problems found in the financial domain. If this sounds interesting to you, please email hropportunity1@gmail.com (sorry for the throwaway address, but for various reasons we cannot publish our actual contact info). Or, if you prefer, contact me directly through my HN profile.
radioactive umbrellas

You're mixing your East European assassination techniques.

Umbrella: http://en.wikipedia.org/wiki/Georgi_Markov
Polonium: http://en.wikipedia.org/wiki/Poisoning_of_Alexander_Litvinen...
Want this so badly.
Rally Software Raises $20 Million
Article on Techcrunch today about a retailers view point on Groupon: http://techcrunch.com/2011/06/09/groupon-single-worst-decisi...
Aww, I was hoping there would be some sort of prize for actually clicking the 'no' button...
I don't understand Notifo anymore. I thought the idea was that small companies would pay for push alerts in Notifo that contain links back to their webapp (or something).

Basically, a universal app until a company-specific one can be written.

I thought things weren't going well. How does releasing a free app help? Are you pivoting?
I too love East of Eden, I'm curious though what change did it cause you to make?
it is their unreformable country’s.

Yet the notion that change is impossible is not just defeatist but also wrong. In the mid-1990s successive Italian governments, desperate not to be left out of the euro, pushed through some impressive reforms. Even Mr Berlusconi has occasionally managed to pass some liberalising measures in between battling the courts: back in 2003 the Biagi labour-market law cut red tape at the bottom, boosting employment, and many economists have praised Italy’s pension reforms. He might have done much more had he used his vast power and popularity to do something other than protect his own interests. Entrepreneurial Italy will pay dearly for his pleasures.
You make some very good and interesting points, though I think it's wrong to just presume Apple is lax on security based from that one sentence.
Obscure? It's interesting but I can't see a case where I'd be recompiling C code every time I want to run something. On the other hand, we can't just go AOT compile using V8 (AFAIK) so let's call V8 always slower?
>our bodies are probably designed to buck up and shower in less-than-ideal conditions.

By this argument, our bodies are designed to die of smallpox.
For the level of users you mention the costs would be very low assuming you're not talking about storing huge quantities of data per user.

AWS offers a free instance when you register an account - it sounds like it would cover your initial needs. You would probably want to bind a larger volume to it (perhaps 20GB or so?) which would cost $2 per month.
Yes. So?

There are lots of other constraints that come to mind. Do we do frequent insertions/deletions?

What are the memory constraints?

What is the size of the unhashed key?

And many more... No data structure always wins.