skysight-inc/HackerNews huggingface dataset:
But that only helps the first person called John or Paul who signs up with you. I guess you have to weigh up helping the odd few first people who join your site, or disallowing names that don't look like usernames.
This seems inaccurate. Dark pools make up 15% of market volume.
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I agree that "cancer" is over the top.

I would also say that you are probably better off with the Pareto rule, unless ability and industry are evenly distributed within the community.

(I speak as someone who uses Perl and Python for most of his scripting needs, by the way, and is definitely not part of the Ruby community.)
I am surprised as well, I did not expect it to work. I am very happy that it has however.
We joked about this "detailed technical info" in the office as our email was down. Why aren't unhelpful error codes dead?
Your numbers are too high. Actual rates are sub-penny or free. Some markets give a rebate for taking, others for posting.
It's a good question. I suppose from NASA's point of view, there are two factors: one, contests like this get people interested in space data; two, maybe some useful app for regular citizens will come from this.

It's like the Netflix challenge (even the winners of the $1M prize were losers if your metric is $/hour) or the DARPA Grand Challenges (which have used a lot of unpaid undergrad and grad student labor).

NASA spends a lot of money developing data services for hard-core science users (e.g., for ocean data: http://podaac.jpl.nasa.gov/), so it's not like they're trying to get off scot-free. But it doesn't really spend on services for curious citizens.

The existing evaluation process for science data services is not well-suited for judging citizen-facing apps/services. There would be a bunch of science nerds wondering if it would be OK to release uncalibrated data, or if the map projection selected was OK, etc.

Earth science data gets in front of citizens more easily because of weather and climate, but planetary data has been under-exposed.
Is it possible/legal for a cooperative to buy RIM?
I would like to see design samples in the same way that you show code samples. And the "see who you both know" functionality might work better with linkedin than facebook. What would be really nice is if you could tap into meetup.com so you could see the backgrounds of people you're about to be at an event with. Other than that I love the idea and your execution of it.
I think this is a moot point, as we've seen time and time again using technologies such as Clojure/OCaml/Haskell/Etc is a boon for hiring great talent, not the other way around.

http://janestreet.com/minsky_weeks-jfp_18.pdf See part 4 "Personnel" for Jane Street's experience hiring OCaml devs.
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Translating Krug's Usability to Edtech
I love Kickstarter, but I hope these kinds of success stories don't start attracting fraudsters.
so openflow is an alternative to ipv4/v6 ?
Tethys looks surprisingly like the Death Star with that pixel-tearing on the edge.
Why Argentina is going down (again)
I do my taxes on paper!

I'm a professional software engineer. I know how software works and how it doesn't work.

I don't trust automated tax software at all.

Fortunately, even the 1040 long form is a simple pen&paper algorithm that I can do in a couple hours.
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Yep. Most large market makers enter into obligations with exchanges to make markets in a wide spectrum of funds. Even those which are not that profitable. In exchange, the market maker gets much lower fees.
Email Rookie Mistakes
During our latest "crunch project", we worked pretty crazy hours to ship on time. One guy in the team works 6 hour days, and continued doing so all the way, with a few exceptions.

As the rest of us turned to Zombies he remained calm, focused and sharp. Without him, we wouldn't have shipped as well as we did.
HFT is not front running. Search comments for my remarks on latency arb - that may seem like front running, but it's entirely different. Latency arb involves information that is publicly available. Front running does not.
Very cool!

I assume you've tried Pivotal Tracker at some point too? I'd be interested to know what you like/dislike about your new workflow compared to Pivotal.
> Or it could be 12:20:00.200 and never. You are assuming Bob will show up, but at 12:20:00.200, neither Alice nor Eve know if he will or not.

Sure. It could be never. But it's not 50/50 or Eve wouldn't be playing. Eve buys from Alice because she expects to immediately sell at a higher price.

> Please go reread the section on why speed matters. As I said, speed matters to Eve and Eddie (both HFT's) - because Eve placed her order at 12:20:00.000, and Eddie placed his at 12:20:00.030, Eve trades before Eddie. Alice's timing is irrelevant in this part of the game.

It's not irrelevant. A price-increasing event occurs and Eve jumps on Alice's sell order before Bob's buy comes into the system. Bob pays the same, Alice gets her asking price, and Eve pockets the difference. This is just exploiting unequal market access.
ASIRRA - captcha for humans
As I understand it, no. ipv4/v6 define an endpoint address. This simply defines how to get from one endpoint to another efficiently.
How big of a team / project could be managed reasonably with this process?
It just came back, India.
SecondMarket is a start up pushing in this direction. The company whose shares are trading set the trade frequency. Sometimes once per quarter, once per day, whatever they want. Obviously, this is much less liquid.
Well, yes. Having a job definitely takes precedence over time off from a job. But working grueling hours will only work so long for you - trust me on that. Been there, done that, got the entire t-shirt collection.

What I regret most about being willing to do this though is that I made life difficult for fellow engineers. Everybody who unquestioningly puts in long days makes it harder for somebody else to actually keep decent hours. (And you'll want to go there at some point - see above)

There are plenty of places that have good work hours, and most places that don't have crappy engineering practices on top of everything else. So if you want to do your future self a huge favor, don't sell yourself via "I can work insane amounts of time". What you'll get for that - if you'll get anything - is a crappy job at most likely a crappy place that you'll quickly come to hate.

Sell your skills instead. Or, if you actually love working 16-hour days, strike out on your own. At least then you're not working to line somebody else's pocket.
> But some of this sounds too much like a defense of those whose dedication to learning stops at the office door.

I don't think it's fair to characterize it that way, there are other things to learn about outside of programming. I spend a lot of time learning about biology, sociology, economics, philosophy, etc. I spend time learning more about friends and partners. I spend time learning about myself. Yours is exactly the mentality that the article is addressing, the one that does not see value in or respect any activity not directly related to coding. What's troublesome to me is that some people focus so narrowly on technical proficiency that I wonder how they have the time to develop the perspective to know where to apply those skills.
Yes, but outfits like Gracenote have metadata for over three times as many tracks as freedb. The article's title is just plain misleading.
cool. a step in the right direction
I wasn't making any sort of proclamation like that.

I'm asking why the authors think that nature and nurture is not a sufficient explanation for the preferences of college age adults.

I brought up cultural bias specifically because it's something that people are used to trying to change, as opposed to genetics.
I don't know that it's the _only_ reason. I'm guessing another big part of it is that government agency software projects routinely run way past due and over budget, and often end up going nowhere. e.g.,

http://mobile.businessweek.com/news/2012-02-24/nextgen-faa-c...

or

http://www.usatoday.com/tech/products/services/2010-10-21-fb...

"The IRS could trivially set up a website" - no, you or I could trivially set up a website. The IRS can't trivially do anything.
I like the idea. From the agreement, clause 2:

'An assertion of claims of the Patents shall be considered for a “Defensive Purpose” if the claims are asserted .... (c) otherwise to deter a patent litigation threat against Assignee or Assignee’s users, affiliates, customers, suppliers, or distributors.'

That part (c) is pretty vague.
Steve Jobs wanted to offer people "Freedom from Porn". Seems he was pretty conservative in his older days (I got this impression from his biography as well, but I can't back that up). http://gawker.com/5539717/steve-jobs-offers-world-freedom-fr...
And what's the downside to that?
IB TWS is one of the most annoying platforms out there. And you will be throwing rocks against the wall as it never stays on,it wants to logout each day, oh and did I mention sometimes the datafeed just disappears, quotes for options don't get updated, PnL doesn't get updated right (seems like it takes snapshots 20-30 seconds ago)

Be careful.
It's got some useful APIs though
Actually, it's another product. We're still in a very early beta, so I haven't talked too much about it publicly, but I'm hoping to do so very soon.
Here's the original post submission on the Twitter Engineering blog: http://news.ycombinator.com/item?id=3853654
It should be obvious how it is beneficial. HFTs are in competition with themselves, not with investors like you and I. Prior to HFT market making, manual market makers (brokers on the floor) were making huge profits on large spreads. This means worse prices for the average investor.

Without HFT there would be no "1 penny" spread.
This is awesome! I'm looking forward to seeing which tech companies sign on.
Have you been to H&R block? They already are!
Strictly speaking, Japanese is moraic, in that it divides the rhythm of speech into units potentially smaller than a "conventional" syllable. For instance, the transliteration of "ice", as in "ice cream", would be three mora: "a" "i" "su". To me this is somewhat problematic, as the methodology of the study had native (or proficient) speakers counting the syllables as the corpus was transcribed, and it's unclear to me whether a native speaker would even count syllables in the same way an English speaker would. Another potential flaw is that the syllables counted were for "careful" speech, which differs phonetically from casual speech even in formal registers. For instance, the word "kakushita" (hidden) is technically 4 mora long, but in normal speech the u and i are effectively swallowed, even though a speaker would pronounce them if carefully sounding out the word. In this sense, either syllable or mora count is not necessarily a great metric, as you'd probably be better off counting the number of uttered phonemes in recorded speech.

However, the study is still quite interesting. Besides the syllabic analysis and derived information density, they also analyzed recorded speech for the time necessary to convey equivalent semantic content, and while this metric diverges somewhat from the others, Japanese still comes out at the bottom of the group. It's worth pointing out that if this hypothesis is correct, it's not at all in conflict with anecdotal observations about the high context in Japanese conversation. If anything, one would expect context to take over when formal information density is low, much the same way that tonal languages often have comparatively low phonemic inventories.
Having learned Mandarin and Japanese as a second and third language, respectively, I've been sharing this as an opinion for years, with some examples and anecdotal evidence to back it up. My core observations have been thus:

Mandarin, while there is of course grammar, it doesn't get in the way much. The basic idea is that you throw some words one after the other and the other person gets the right idea. That basic idea can get you very far. It sounds like it would be ambiguous, but rarely feels that way in practice.

Japanese, on the other hand, to get beyond sounding like a 5-year old you need to brush up on a lot more grammar. And even then, any given sentence, for all of its grammar and four- or five-syllable conjugations, can stretch on and on, but still be ambiguous as all hell. Part of that is cultural, though: a dash of ambiguity can provide some added politeness.

Here though, I must reference Symmetry's comment for fairness. Casual/conversational Japanese can be very abbreviated and through a combination of implicit topics, dropped/ignored/shortened conjugations and such doesn't feel so slow when spoken.

Here I'm going beyond the information density per syllable addressed by the study, but it was nice to see that aspect studied formally, even if it isn't the whole picture.
While my knee-jerk response is to agree with you, there are some cases where we want the government to shape behavior. The best example I can think of for this is gas taxes---there's a cost to driving (road maintenance, traffic lights/signage) that you wouldn't really pay for unless it were through taxes.

You could point out that that's a sales tax and thus not particularly applicable to the discussion at hand, and I'd agree, but the idea of making people pay for negative externalities is a good one.
> it was a small proof-of-concept for a telecom application.

would you describe what telecom application this was ? was it billing, ocs, pcrf or something else ? thanks !
Sub-pennies, negotiated directly with exchanges. They do the same negotiation that Interactive brokers does, except unlike interactive brokers, HFT players can trade 10% of market volume which give them significant leverage.
There's over 260 million Gmail users. I understand the outage percent is low but at 2%, that's still 5.2 million people. That's bound to spark some talk on the interwebs.
1. Why should there be one for all income categories? Some taxes are just plain fundamentally more complex than others. As it is, you can e-file for free through the federal government (I did so 2 years ago, it was no harder than filing out the form).

2. Are you seriously posing the question of why a ponderous government bureaucracy hasn't streamlined a process and made it user friendly? I'll just leave that one be.
You can buy preferential treatment: If you set a higher price for your buy order, then you are preferred over every lower-priced buy order.

If you select a participant at random, you are encouraging each trader to place many orders (at the same price level), to increase the probability that one of his orders is chosen randomly.

If you use a pro-rata algorithm based on order size, you are encouraging each trader to inflate his order quantity, and cancel very rapidly after all (or nearly all) of his desired quantity is filled.
It's also on Github for comment: https://github.com/twitter/innovators-patent-agreement
They haven't approved the update with the new graphics either.
Websockets and more: awesome node.js npm modules we use every day
As far as I'm aware of, the blockchain only gets signed every few minutes or so.

So how can you achieve this low latency? Do you just base your decision "x has paid" on the still unsigned chain? That's quite risky and open for exploits, isn't it?

Also, what do you do if there are orphan blocks in the chain?

(Comment about coindl.com, not the book the article links to.)
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But does the weatherman go to jail if the forecast is wrong?

There is a steady stream of people writing "Google's automatic system screwed me and I cannot get it fixed" blog posts. If Google's automated system screws people, just imagine how effective the government's system will be.
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How does HN's ranking work? This seems like an error
Stopping recruiters from messing with people on the site is one of the big reasons we use Facebook - we can block anyone who abuses the system easily, and potentially block the companies using those recruiters. If we make the stakes high for companies abusing people through reckless recruiters hopefully we can change how companies think twice about hiring them. We also built in some simple triggers to make reporting abuse super easy, and we monitor how people are using the system closely. Hopefully in the future we can watch for suspicious behavior patterns based on what we learn.

Thanks for asking :)
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Should be working fine now :)
French Presidential Candidate's Website Hides an 8-Bit Konami Code Surprise
I reset my browser cache/cookies and that reset the Oauth token but once I login with Facebook it redirects me back to the "add to my profile" page where I choose that I'm a developer and it either kicks me to the same page as above or a page with a few bullets on it that appears like an unfinished/unstyled page.
Actually the data you put on the W4 doesn't have to have anything to do with your actual status. Moreover, your status may have changed since you last updated your W4.
My apologies. Jeff Atwood made me a guest blogger without asking me first, then added some boilerplate that I didn't agree with. I'd have given him permission, had he asked, and I appreciate the inbound traffic, so I didn't complain. However, this seemed like the perfect opportunity for some humor while clarifying my position :-)
As a matter of fact, I agree. The fact that x86 won the consumer market is, IMHO, very much one of those clever-marketing-and-quick-standardization-cases.
> why we should build a system that enables HFT to be profitable.

because HFT's are more efficient. paying a guy to make a market in one stock is expensive. paying for a computer to do it is cheap. when the market maker's costs are lower, they can afford to quote tighter spreads and still be profitable. lower spreads => lower tcosts for "normal" (low frequency) market participants
I wonder if Twitter will retroactively apply this to the "pull to refresh" patent they acquired when they purchased the Tweetie and turned it into the official Twitter client:

http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec...
My understanding of the summary is thus:

The variance in aptitude in men is greater than the variance in women, even though the average point for women is higher than that of men.

To put this another way (vastly simplified), there are more male geniuses and more male idiots. However if you were to grab a random woman off the street, she is likely to have greater aptitude than a random man you grab off the street.

So in US highschools where grading is bounded and the same testing is forced on everyone, we see women routinely trouncing their male counter parts in GPA scores.

Then in college, where people have a choice more men go into difficult but unprofitable majors (e.g. Physics), additionally women have a bias against certain subjects (e.g. Computer Science) due to the low-status accorded to it, and thus choose other majors like Law or Medicine.

----

Bringing it back to Genetics, that means the 'dum dum gene' (gene which causes aptitude variance) is on the Y chromosome, thus women aren't affected by it at all.
No. The idea behind OpenFlow is having simple routers which only implement basic switching capabilities in hardware. The complex routing rules can then be set in software which allows for much easier and more capable traffic routing.
It also allows more innovation in this part of the infrastructure which has traditionally been very resistant to it because of the incumbent players. You can, for example, experiment with new routing protocols without having to do a firmware or even hardware upgrade.
The really unhealthy trends are the treating of a government id number as sensitive and the general mislabeling of fraud as identity theft.
If you don't itemize or have a business, then the IRS has all your income available to it. In particular, brokerages must now report cost basis on all stock/MF sales.
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Larry Ellison takes the stand in Android IP trial
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Please read before commenting.
It also moves the decision making off of the switch/router and onto a server. http://www.openflow.org/wp/learnmore/
The Distinction of Past and Future - Richard Feynman
It's a very thin line to walk. I know I've spent days reading Linux or Mach sources when I could just have coded around the issue, and I wouldn't list that as something that makes me a skilled coder. It just means for me sometimes shiny outweighs expedient ;)
The drawback is that for many games the most exposure and sales is going to be when it's released, so you want to polish and perfect it as much as possible to maximize that.

I think the strategy works better for games that are intended for longevity and re-playability, like free to play games and multiplayer games. If it's the type of game that people are only going to play through a couple times, then it doesn't really work.

Another thing is that it's easier to get all the bugs out for a single release than to have to QA again for every release(how much of an issue this is depends on the platform/type of game).

Also "controlling the experience" is a big deal. Many games are just not going to be good or worth playing until they are far into development and polished.
See this tweet from Twitter Comms: https://twitter.com/mgrooves/status/192303330876334082
patched sources ... gentoo ... environment variables ...

Please stop right there and think at the average Ubuntu user, or at a person that has used Windows as his primary OS and just recently has tried Linux hoping to learn/try/test some C++0x/C++11 codes.

Obviously the linked article was not written with a hard core Linux user in mind.

I understand that, from where you stand, this is trivially simple. Just don't assume everyone has your experience.
They will. From the announcement (http://engineering.twitter.com/2012/04/introducing-innovator...):

> We will implement the IPA later this year, and it will apply to all patents issued to our engineers, both past and present.
It can be slightly simpler: in the UK the common case is that you don't need to do anything at all, and the taxes are automatically deducted by your employer. (There are circumstances where you need to send a tax return, but they are the minority: http://www.hmrc.gov.uk/sa/need-tax-return.htm).
SymbolHound: Search Better. Code Better.
We will implement the IPA later this year, and it will apply to all patents issued to our engineers,

which is different than the acquired patent you mention, but at least indicates the intention to make the policy retroactive.