skysight-inc/HackerNews huggingface dataset:
Oh, I completely agree, and I don't waste trying to convince them. This is more a post to people who have just come up with an idea to try to get them to realize that they're going to have to work very hard to add enough value to make it worth it to a technical cofounder.
Will this book remain publicly accessible in future ?

I intend working on MacRuby in a while.
RVM is one of those tools that you add to your arsenal that makes you go back and think how you ever got by without it before. This is particularly true if you are working on multiple projects, all of which have their own Ruby versioning/gem set requirements. It's incredible how trivial management has become when I'm dealing with 1.8.7, 1.9.2 and JRuby 1.5.2 (concurrently) on an almost daily basis.
At least in the abstract this study doesn't seem to differentiate between market making and more agressive HTF strategies, furthermore the firms involved and strategies they are running aren't listed. The potential bias in both these factors is enormous. Given there is significant empirical evidence that at least some HFT strategies have involved market manipulation and in one notable example, the temporary total destabilisation of the entire market I'm extremely dubious as to the origins and motivations behind this paper and the data used.

That the author appears to run a high-freq quant fund hardly helps: http://www.linkedin.com/pub/jonathan-brogaard/22/b04/b60
I once lost my phone, with work email on it. I used the remote wipe as soon as I knew the phone wasn't coming back.

Someone had gone to the trouble of keeping the phone charged; it got the wipe a good 24 hours after the battery should have died.

I was very, very happy the facility was there.
I think you're responding to the article, when the post links to a comment by blue_beetle, FYI.
But we're talking about the best and worst here- so presumably at the ends of the curve, and deserving of superlatives.
Surprisingly appropriate works to describe the best and worst people, as well!
Concurrency, State, and Functional Programming
This was a problem, but it was fixed with the release of iOS 4.0. Now users have to go to the app store to rate an app.
Birthday SMS | Birthday Messages | Happy Birthday Wishes - Hindi, Urdu Greetings
I'd love a one-push deployment option for Python. But the website should really have some more details.
I disagree. Being Spaniard myself, my education has been based in reasoning, at least in High School and College (engineering degree).
Anti-US hacker takes credit for 'Here you have' worm
Part of the point is that it is looking at historical data, and that most academic economics results look at historical data, and historical data does not, for example (as I understand it), enable predictions of the crashes of 1929 or 2008.

This paper is fundamentally talking about "normal" trading conditions, and the continuing danger is that results like this will be used to bolster the contention that HFT is in fact a good thing, whereas when the market crashes it might be an incredibly bad thing.

I'm not saying it is or it isn't, I'm just saying that there seem to be a lot of assumptions that aren't being made explicit, those assumptions might not be valid, and when they're not valid, all predictions go out the window.

Hence the quotation.

I should add that perhaps this is no surprise. A claim I've seen made is that the information economists need to be accurate is fundamentally undiscoverable. Hence the article I lunk to earlier:

http://news.ycombinator.com/item?id=1686077
http://sms2everyone.com/sms-in/shayari-sms/
I have to wonder about that. At least in the STEM fields, there's no particular change in US K-12 schooling I know of that you can point at for a cause in decreased US student interest, unless it's the final decay of the Sputnik inspired stuff.

US K-12 education has been horrible for nearly 3/4 of a century. The most basic, fundamental skill, the foundation for all other learning, was in such bad shape in 1955 that the whole Why Johnny Can't Read thing got started, along with a furious debate then or a little later on "Federal Aid to Education", which then was pushed through in the '60s.

(Note, however, that a large fraction of kids, almost certainly enough to keep the STEM pipeline filled, will learn to read no matter how bad Dick and Jane and Their Running Dog Spot is. The success of this "method" was "proven" in a single study of ... the kids of University of Chicago professors and the like. It's a middle set that desperately need phonics to learn how to read.)

The attractiveness of US higher education can be largely explained by these hard to dispute facts:

Our best universities are simply the best in the world, full stop.

In a lot of countries the local universities are very bad (note where Feynman developed his theory of cargo cult science) and/or are way too small to support the number of students qualified for them (e.g. India's IITs; imagine, assuming you qualify to even take the test, being one of 400,000 competing for 4,000 seats (http://en.wikipedia.org/wiki/Indian_Institutes_of_Technology... )). Many good students from those countries don't have to go to top or first tier US school to get a superior, often vastly superior education in the US.
Ask HN: Charging - When, how, and how much?
I've been building a web-based mockup tool called jMockups for the last several months and I'd like to get your thoughts on when and how to charge for it.

I've asked several experienced members of this community whether I should charge from the start or wait and charge down the road and I've had mixed feedback. Those that say charge now say that I should establish from the get go that this is a high quality product worth paying for and that transitioning from free to paid is a pain (which from my own experience with previous sites is true).

Those that say charge down the road say that I want to get as much feedback as possible right now to make it a better product, that I'll get more inlinks and buzz because more people will try it, and that I'm in this for the long term so its not a big loss if I don't charge for the first few weeks.

The second issue: how much? Balsamiq is the clear leader in this space and their main product sells for $79. We don't have identical products -- theirs focuses on low fidelity whereas mine currently focuses on high fidelity mockups -- but there is a lot of overlap. I plan to charge per month and offer a free option for folks to try it. I find myself basing my pricing off of this $79 number ($7/mo = $84/year) and while I think thats something that a lot of folks would pay, some of the feedback I've gotten is that I'd be better off charging much higher... $20/mo on the low end.

I don't have enough experience to decide with certainty on either issue which is why I've been asking for feedback and I'd like to get yours too: charge now or wait and how much?
JavaScript Console Fix V2 Now with iOS
I was more thinking of a review of academic publications to see how coupled they are to the finance industry.
Dead Man Walking The Fragile Future Of Loyalty Programs
If integrated into daily routine, quizzes are no more anxiety-producing that, for instance, sprints as warmup in {name any sport}. It can be a fast way to get the mental juices flowing.

This is way too much discussion about way too little. Leave it up to the teacher to choose how and when to drill, measure, and stretch their pupils.
I agree... We will do that as we keep moving forward for sure.
As someone who wants to move to the Bay Area next year, I would love this. I have zero idea as to where I would fit, but this would be awesome.
But Apple cannot sell your credit card number to other people, they still need to get you to pay for it. Advertisement is different.

Advertisers pay the newspaper immediately in order to appear on the newspaper/magazine. And because they pay so much more than people buying the actual newspaper/magazine, it can be a great business for the later to attract more people... even going as far as giving the newspaper away for free.

Apple (pre iAds) was making money from you buying the phone: compared to that making money from apps sold is peanuts. So much so that it can be beneficial to let app developers in for free just to get more people buying the phone.

To summarise: Apple tries to attract customers with apps, newspapers try to attract advertisers with customers. Customers don't buy more newspapers because there are more ads, but advertisers buy more ads space if there are more customers.
What I can't believe is why you are so riled up: I have read the article, part of my comment was about testing for young children. If you care to read my comment, you'll see that the point I was trying to make was that constant testing, as the article proposes, leads to a toxic educational atmosphere where students learn greedy optimization for each test.

Here's another point: You have to learn to be more civil in arguments, even those you don't quite agree.
Maybe that's why they call it hazing? </badjoke>
That's sure a big rude assumption (that if you think Stewart is accurate, you must not know anything about Glenn Beck.) I watch Beck every once in a while and I thought Stewart's portrayal of him nailed it.

You should start citing specific things you take issue with.
HP to acquire ArcSight
>Too bad that I'm forced to play the game of the SE0 L00z3r

There's building a link farm, and then there's giving your article a descriptive title.
No one lists BDB, they list Tokyo Cabinet instead. As far as I know (but I'm not an expert), BDB has been completely superseded by TC.
FCC Launches new Developer Site
I completely agree. This article is full of oddities like that, drawing correlations in places where it does not necessitate causation.

"These are not the big once-a-year or once-in-a-lifetime exams, like the SATs, but a stream of smaller, less monumental tests, designed in theory, at least, primarily to help students and their teachers know how they’re doing"

How profound. How exactly does that differ from current exams!? K-12 students don't have once-in-a-lifetime exams - they have less monumental tests that already take the focus away from what school is for - learning - not assessing. More assessments will lead to more focus on passing assessments and less focus on students and then less learning. Who can argue this? The fact that Chinese schools may possibly (which I'm suspicious of in the first place) have more tests, should in now way be seen as a cause for better learning. Here are a number of things the Chinese do better than most in the states that would lead to superior education:

1. Parents are more involved in their kids education.
2. Students are more involved in their own education.
3. Teachers are more involved in quality teaching/mentoring.
4. Teaching/learning methodologies are better.

How ridiculous.
I remember watching that at the time and think it was a cool bit of movie wizardry. However, I don't think it's stood the test of time in the same way the Blade Runner effects have. The effects scenes in Blade Runner are nearly flawless. There is so much detail, some of it almost compulsively unnecessary. There's a scene where Decker is walking to his apartment, and you get a long view shot down the rows of buildings -- every time I see that I think "that's totally unnecessary, they could have just angled the camera such that you don't see the externals of the building, but oh man does it build a sense of setting". If you freeze one of those frames, it tells so much story about future L.A.
And what criteria are we rating on? "Which schools I make the most commission on" vs. "Schools that produce graduates that satisfy my clients needs" etc.
It's amazing they could snatch that property up, put a team on it cold, and peg a release date like that.

If this happens, it'll be a wonderful case study on the powers of good project and product management.
"On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity. "

I found the article to be very interesting, and apparently so did many others. Not everything on here needs to be 100% about startups, programming, or business.
citricsquid, are you affiliated with PayPal in some way? In this thread and the other (and possibly in the whole development world), you seem to be the only voice claiming PayPal is a reasonable, fair company.

It's mildly amusing, to say the least.
"Very few applications I've ever designed ever seemed like a good fit when mapped to a relational data model"

I think for many applications it's sign of bad design if the data model really fits the application in the sense that application data structures have 1:1 mappings in the database. It's similar to the relationship between the UI and the underlying object model (or whatever the paradigm may be). You need separation of concerns.

Data lives longer and usually serves more than one application over time. Fitting it too closely to the needs of one particular application at one particular point in time causes too many dependencies.

Of course, there are exceptions. Sometimes applications are trivial. Sometimes data isn't analyzed or used in other contexts. Sometimes performance dominates everything else. But for most applications, the infamaous impedance mismatch is an automatic consequence of acknowledging the different requirements we have for applications and data respectively.
Given there is significant empirical evidence that at least some HFT strategies have involved market manipulation and in one notable example, the temporary total destabilisation of the entire market...

[citation (or even a few google keywords) needed]
Contributing (how to contribute to open source projects)
Heartburn Symptoms-Are You Killing Your Stomach?
Sorry to all reddit here but whooosh.
HN: Minneapolis Meetup Tomorrow Night
The next Minneapolis HN Meetup is tomorrow at 6pm at Tiffany Bar & Grille (2051 Ford Parkway, St Paul, MN‎). Hope to see everybody there.
How do you find a vegan at a dinner party?

Don't worry, they'll let you know.
I never proposed having no tests (so you're no stranger to strawman arguments after all :-). My point was that constant testing was wrong. Judging by your naive comparison to Google Analytics, I think that you haven't been subjected to a brutal regimen of constant testing, starting at 7, as I was.
This would be a great feature in a lot of web-based apps. Generate a few hundred passwords when you are on a secure connection, use them when needed.

Edit: I found a few implementations.

http://wordpress.org/extend/plugins/one-time-password/

http://alexking.org/blog/2008/06/27/phonefactor-10

http://henrik.schack.dk/yubikey-plugin/

http://blog.fastmail.fm/2008/07/21/one-time-and-sms-password...

http://squirrelmail.org/plugin_view.php?id=276

Yubikey looks interesting and they also have a web service API.

http://www.yubico.com/products/yubikey/
http://www.yubico.com/developers/api/

MyPW is another web service: https://www.mypw.com/

OpenOTP supports both hardware tokens (also supports Yubikeys) and all kinds of phones.

http://www.rcdevs.com/products/openotp/
OT, but on my first week in Oz I had bought a cup of coffee for $4 (I could see them, they're four small copper coins.) then went through my pockets to get rid of small change as tips, much to the waitress' resistance. So I gave her something around 6 - 10 smaller copper coins, much smaller than $1 coin.

Turns out, the smaller coins are actually worth $2, and I must have given her $12-$20 worth of tips for a cup of coffee.
The fsf petition generates errors when you try to sign it.
Interesting points, but it reads like a parable, rather than something that actually happened.

This is something that irritates me about business writing. Parable != evidence, since I construct a parable after the fact, to make a specific point.

Also, like witty aphorisms, it's just as easy to support either side of an argument. E.g. "the early bird gets the worm" v.s "the second mouse gets the cheese".
When are you guys hoping to drop something? 1 week? five months? fourteen years? ham?
I think it's less "job titles that", and more "job titles can". The hiring model for employees in the tech industry has shifted from "I'm hiring a (insert position here)" to "I'm hiring someone who can (skills x, y, and z)". Old industry HR practice is to look for a title, but new industry needs to focus on skillsets. Especially in the fluid world of startups, flexibility is core.
the nice thing about scala and erlang is that you get everything (threading, messaging, remoting, process control) with the framework, so all your code needs to be concerned about is the business functionality.
If you can't beat them, join them
Any time you start off a point by saying "Of course, Stewart is a socialist ....." and then go on to call blogs propaganda outlets, I 100% tune out your opinion. If you are trying to call out someone else as being uninformed, you probably should cut out the double speak before trying to make your point if you want to be taken seriously by anyone who is not indoctrinated into that school of thought.

Guess what, I think socialism is an interesting concept, not the boogeyman! And I have been a registered big L Libertarian from before Ron Paul and Glenn Beck were even known! I ran as a libertarian candidate once, and I still don't use socialist as a degrogatory adjective like you clearly have. Get a grip on reality.
Have you ever watched an entire episode of Beck?
Are you going to provide PostgreSQL access? If so, are you going to run a shared database? What about database quotas, are you solving it on a file system level?

Are you going to use mod_wsgi, nginx/gunicorn, or something else?

How are you building/scaling/deploying the presumably virtualized servers needed to host users apps? Puppet, Chef, Fabric, or something else? Are you running on EC2?

Will there be file system access or only read-only access like Heroku?

How will you compete with djangy.com and other services which are in the works? (you already seem to have an advantage by not running in debug mode....: http://news.ycombinator.com/item?id=1617691 )

How are you going to handle mail delivery? Through a third party over HTTP?

What about DNS? Will you allow A records or just CNAME records like AppEngine?

Looking forward to try the service out, but I'm not sure it will be much easier than my current Puppet setup:

gunicorn { "murerknutsen":
domain => "murerknutsen.no",
django => true,
postgresql => true,
}

(cross post from http://forr.st/~XTn )
In addition, the article ends with one of the author's children asking [while in a class that has no tests]:
“How do I know if I get what’s going on in math class?”

I find this kind of thinking dangerous in that this question is essentially asking another person to think for you. Sometimes the answer should be a string of questions, not always a test.

What do you feel you have learnt? Do you remember anything? Do you feel it has changed you? Was anything memorable? Did you enjoy the class? Do you enjoy doing problems? Do they interest you? Do you feel you are learning well?...Please think about it, child. What do you feel?
I have seen horrible relational schemas as well. But they are islands of sanity in the ocean of custom data formats and encoding rules. Interestingly, the worst relational schemas are often justified using exactly the same arguments we're hearing out of the NoSQL camp today.
> A financially stable newspaper gets around 75-80% of its gross revenue from advertisements.

In the glory days, a solid 30-40% of revenue was from classified ads, which were _way_ overpriced, but the only game in town.

You may find this of interest: http://newsosaur.blogspot.com/2010/09/newspaper-ad-sales-hea...
I also chose Tech for their strong engineering program. But it seemed to have really pick up steam in the last few years and they've developed a strong reputation, internationally. Where if you weren't Ivy, UC, Stanford or MIT you couldn't get much respect.

Last time I stepped foot in Blacksburg they pegged me with $100 parking ticket and wouldn't release my transcripts until it was paid. They get you coming and going!
> Okay, here's the bad news. The engine looks dated. ... Hopefully, this is something that will be addressed by Gearbox.

I really hope this was tongue in cheek....
I think you've got the sensitivity on your douche detector cranked up way too high.
But you can't guarantee that you can wipe it. What if it's not connected to the 3G network? What if the data has already been pulled off? What if it's been copied to a memory card on the phone? What if the phone doesn't properly implement this feature?
I don't know. A very high-quality small school will have a tendency to get bigger.
I was part of a similar program this summer called HackNY (hackny.org). I was supplied housing and a paid internship with a NY based startup. If you're a student looking to gain some startup experience, I strongly encourage you to attend one of their upcoming hackathons and register for the summer program .
GLASS is now free up to 16 GB and 2 CPU (formerly $7000/year)
Sam Ruby: One True Way
So our company will not let iPhones connect to the Exchange servers from outside the corp firewall. Solution: Set up a separate mailbox on an external web host and use an exchange rule through Outlook to redirect emails to that address, all the while filtering for things like confidential or classified documents, and check the mail from my phone.
Most of the other data is used primarily to restrict access to certain "tribes", not to select good students.

(By "tribe", I mean certain personality types and cultural groupings, not ethnic tribes. Though of course, the other data points are used to reward certain ethnic groups as well.)
You've confused me. Let me explain.

The article doesn't talk about huge tests that determine your future, but you are. You say:

> part of my comment was about testing for young children

The only bit you seem to have about testing you children is this:

> One, at 11, that determined which secondary school
> I could go to. Every private school had its own exam,
> so as a kid you had to take 6-8 exams in about two
> weeks

This is exactly what the article is not talking about. The article is talking about exactly the opposite of this - it's talking about having tests, small ones, fast ones, fun ones, literllay every week, if not every day.

You claim:

> constant testing, as the article proposes, leads
> to a toxic educational atmosphere where students
> learn greedy optimization for each test.

The article says this doesn't happen, and you don't appear to provide any evidence that it does. You don't talk about that situation, you only talk about the major testing periods that are critical.

Finally, you say:

> You have to learn to be more civil in arguments,
> even those you don't quite agree.

I don't believe he was being incivil. He said that your arguments don't appear to apply to the article. Your arguments appear to be about situations other than in the article. In that, he appears to be right.

I agree with your comments. I think most people here will. The huge pressure, incredibly important, major testing periods to determine your future are toxic.

But that's not what the article is about.
Why does socialism == hate campaign? What is the association between them?

There is a huge difference between a Democrat/liberal person and a socialist, and a huge difference between socialists and facists, and all of them are short of being Nazis.

Anyone standing on the right, painting everyone to their left as socialist Nazis trying to destroy America are completely out of touch.
Don't feed the troll. This guy is clearly stuck in 1950's McCarthy-land and thinks Godwin's law is a guidebook, not a admonishment of sloppy thinking. You'll only be debating your grandfather here.
Take the open source IQ test
Hundreds of years of political satire (cartoons, opinion pieces) agree with you.