skysight-inc/HackerNews huggingface dataset:
> The former captains spoke of an unrelenting, often unethical pressure to manipulate crime statistics. In addition, the professors studied police and health data and found weird divergences. City hospital data shows a 90 percent increase in emergency room visits for assaults from 1999 to 2006. But police data for the same period records a nearly 50 percent decrease in assaults.

A friend offered this: "Clearly the hospitals are just padding their books so it looks like they'll need more funding."
They also only carry enough fuel for short flights.
eh, this comment seems like a fractal snapshot of the whole thread.

why on earth do you feel any kind of right to be telling some random people you don't know how to behave? why does hn feel the need to have some private moment from these people's lives on the front page? why does this matter to me, a hacker? but is a wedding private? isn't it a public statement? why does a hacker like zuckenberg (sp?) need to make a public statement like this (i've been living w the same person for 20 years and neither of us see a need to get married)? and why rings? what the kind of ancient property-related crap is that? but that gets back to public statements. and why can't he do his tie up - he looks a mess? and now am i as bad as the person i am replying to?

and most of all, why take a photo with their washing line in the background?
Doesn't MongoDB automatically index columns? Wouldn't that account for a lot of the difference?
I had it like that for a while, but ran into problems once I introduced the double-click-to-edit functionality. Thanks for the suggestion though; I'm still working on improving the user experience. :)
"The best working environment I ever had was when I was in college- the top floor of our library was a big study room with individual cubicles, and it was absolutely silent. It was the one place I could really zone out and get work done because once I was firmly planted in a cubicle, I could focus solely on the task in front of me."

I also found the presence of others and absence of my own stuff kept me from task avoidance strategies.
It's one piece of the technology you need to run an VOIP phone service. You could use this, for example, as a building block to get push-to-touch voice livechats on your site.
For this type of service spamgourmet is my long time favorite.

Create disposable e-mail addresses that forward to your real e-mail address. You get a name stub and then you can create e-mail addresses on the fly. For instance you can have something like "hacker" as your name stub, and they have 20ish domains to use. So it works like this, say you are signing up for a subscription with inc you can then use inc.hacker@recursor.net or inc.hacker@neverbox.com or inc.hacker@spamgourmet.com. Whichever you prefer as the domain. In this case it would use my default burnout rate which is set at 3 when you signup. I bumped mine up some, but you can also specify it. So if you wanted say 10 e-mails before it burned out you could use inc.10.hacker@recursor.net. If you don't do anything else, once you receive 10 e-mails at that mailbox it will burnout and start eating them. You can also go whitelist the domain so if you get an e-mail from inc.com it will come through, but it will use the normal burnout settings for e-mail from anyone else. There are also much more advanced features for when/if someone figures out how this works and tries to spam you like setting watchwords. So if an e-mail doesn't contain the current watchword it will not allow the creation of a new e-mail address, but old ones continue to work.

One thing that is nice is the interface shows you how many e-mails have been received on a given address versus how many have been eaten. For instance when I signed up with inc, they apparently gave my e-mail away and I started getting e-mail on that inbox, so I let it burn out. Now they can no longer reach me. Market Samurai has been incredibly bad, they've had my e-mail address for almost 2 years and I have already received 2500 spam messages on that inbox.

The great thing is this is all free and open source. You can donate, and if you use the service a lot, you probably should. You can also download all the source and set one up yourself. Overall the current setup is not user friendly by design. In the FAQ it specifically discusses they don't want to support end users who can't take the time to read the FAQ. Overall I cannot overstate how great this has been. It solves such a major source of pain and does it in such an elegant way. If you haven't found a service you are happy with, give spamgourmet a try.
Indeed, I know a few people these days who are choosing KIA cars over alternatives from VW or BMW for reasons of reliability and build quality.
I think it's ridiculous that people try to put programmers in this environment. Coding is one activity that requires a tremendous amount of focus and concentration, you shouldn't even think about this for programmers. And I, for one, find headphones to be irritating and distracting, so that doesn't work out very well either.

For programming there are times where collaboration and group innovation is great--it's before you start coding. Yes, by all means hang out in bullpens and shoot darts at each other, cool. But once you start building, you take your piece of the structure and go build it in solitude. If you need to confer with someone else you figure out how to make it happen, whether it's walking up and interrupting them or even if you have to schedule a meeting. It's the nature of the beast, there is no magic pill to make that part go faster.
No, it doesn’t.

http://www.mongodb.org/display/DOCS/Indexes#Indexes-Basics
I agree, I wondered about that same snippet.

And I tested with the `timeit` module, there's not really much of a performance difference either (although the version with `not` is slightly faster, it's just by less than a percent or so).
SoftImage Physics Engine - with video
"in the event of a divorce they will properly have to split the money fifty-fifty."

Yeah ... 'cause I'm sure a guy that just became a multi-billionaire didn't have a prenup.
(Which existed in 8.4 as well: http://www.postgresql.org/docs/8.4/static/textsearch.html . Not sure why he's not using version 9)
Tornado relies on its own HTTP server, but its modules for everything from templating to authentication are loosely coupled, so you can take them or leave them.

To your point, I'd be curious to see a non-Tornado server that is Tornado compatible on the backend. It could be an interesting project. I would counter, however, that any server choice has its own inertia--changing web servers is hardly ever a simple process.
When Will Software Verification Matter?
Stuff for hackers
As previous posts regarding "building in America" point out, it's not just the cost of labor, but being close to your supply chain that makes China so great. Mexico faces the same supply chain problem as building in America, so it wouldn't really get anywhere.

You should also note that with NAFTA in place, there has been significant shifts of manufacturing to Mexico. A lot of car factories sprung up in Mexico after NAFTA (both brand new factories, as well as relocated from Canada/US). While the degree of work being done in Mexico is not as large as in China, it is not fair to say that none as happened. There's a decent business week article that gives some overview of whats going on down there.

http://www.businessweek.com/magazine/content/08_13/b40770009...
I can't even imagine the abuse this is ripe for. Think chat roulette, but without the video.
Nobody said you're guilty of anything. But you are asking why African countries are deserving of aid and I'm giving you an answer: because many African countries are in the position they are in because of colonial powers.

When you study the history of the continent you will see that a good part of the reason for its present levels of political instability, inequality and poverty has to do with an imbalance of power and wealth created due to colonialism (and associated racism).

If you think all that the colonial powers did was buy and capture slaves I think you should go do some reading and educate yourself about the impact of colonialism.
I've had some thought on this. The issue that I see with auto-focusing is people who use backspace to go back in the browser. If I steal focus then they're just stuck there, mashing on backspace.

As a compromise I implemented arrow key functionality. The down arrow focuses the input field when you're on the Daily tab. The left and right keys also scroll between days/months. I realize that at this point there is absolutely no indication of those features on the site, so consider it an Easter Egg for now. :)
Actually, it looks like he was picking on it for something he thinks it does poorly.
of course that post is not best practice for a sql-database search and not optimized at all. what it shows is that even then, on a single host, a sql database is within limits to nosql databases.
The lines are far too long, it would certainly benefit from more leading, larger sizing would be nice, and a typeface with a larger x-height (times is so tiny), would greatly improve readability.
Really cool. What is the front and back end?
Satyajit Ranjeev:

Since this is posted by the you as the author, I'll comment here: some JavaScript is running on page load that blanks the entire page in Safari and iCab on iPad, making the page turn white except for the bullet symbols, and making the article unreadable.

I was able to read it only by disabling JavaScript or parsing it with Readability. (Both disable my ability to comment about this bug there.)
video is actually available as is file sharing. this opens myriads of opportunities (or rather: now we can do with HTML5 what we could do with flash 2 years ago.)
http://www.nanex.net/aqck/QTSChartExplain/QTSequencer_Basic....
Breaking news: an old version of Postgres used badly is slow.
Wow, iceburns have gotten much warmer over the years.
Why is the post by easy dead? It looks fine to me....
We kept a simple stack.

Frontend:
HTML5
CSS3
Javascript (jQuery)

Backend:
NodeJS
CouchDB
Google scholar now lets you track your publications
Using Twitter for business marketing websites
So? Your question was "Where you get that he was Croatian in the first place?" and the answer is that he was born in what is now Croatia.
So? The question was "Where you get that he was Croatian in the first place?" and the answer is that he was born in what is now Croatia. I'm sure that, if you took a survey, plenty of people would say the Dalai Lama is Chinese.
I hated headphones with passion until I found a pair of earbud plug style phones with small plugs. And they are under 20 bucks. They don't isolated aot of noise, just low background chatter. Anything louder is completely ridiculous (yet common).
Good question. Is a relatively young (45 days) account with low karma (17) enough to auto-kill posts? None of easy's submissions or comments seem out of line to me. I'm quoting the post here because Rachel Sussman's TED talk on species longevity is spectacular.

If you found this interesting you might also enjoy a TED talk by Rachel Sussman entitled "The world's oldest living things":

http://www.ted.com/talks/lang/en/rachel_sussman_the_world_s_...
I am not expert, but GPL v3 terms means that I can't use it in commercial product if I do not attach all my source code? Am I right?
Chan luu earrings
yes that is correct
> a NoSQL database has a much more flexible structure

In some cases you really have too much diversity of data structures and then it a NoSQL solution can be helpful. An example can come to mind: a notification engine with tens of diverse notification format, each with their variable data and their localized display templates.

But if your data is well structured, like in this example, it is not true that SQL is not flexible. I have used PostgreSQL to manipulate on the fly the relatively big UNIHAN list (50 000 Chinese characters with their attributes) and could rearrange data in the way I wished, creating, updating columns, creating grouped tables, and I got a working database for an online dictionary without any pain.

If I would have to run scripts for each SQL command I ran, it would have taken much longer, and I would have the easy begin, modify, check, commit or rollback loop.

I sometime wonder if enough people who use SQL use it through the command line interface.
Thank you :)! And indeed, socket.io + node.js
Puzzle & Run: Greens Survive Only When Reds Die - Free Online Games
Nice to know it. So that's how they get their infinite supply of domains:

http://mailinator.blogspot.com/2008/01/your-own-private-mail...
Dispostable is great too. http://www.dispostable.com
MIT sues television makers over digital sets
Can somebody enlighten me please. Would this allow me to capture & process mic input client side?
Google wins final approval to acquire Motorola; deal to close imminently
How do I get started with Node.js
For web developers who want to detect disposable e-mail addresses, I've had good luck with http://www.block-disposable-email.com. It's a good replacement for the (now defunct) undisposable.org/undisposable.net.
What online gaming taught me about startups
I submitted this a few weeks ago, got 1 point iirc. Why does this get over 100?
How I cope:

I work for a company large enough to have little areas I can retreat to and get work done in isolation: A stall in the library, a corner of the cafeteria. I can get a solid hour or so of work done on a laptop (coding, writing, whatever) before I need to connect with my cow-orkers.

I also try to stay off the network during this time; I turn off wireless and shut down the browser and email client. This does wonders for concentration.

[I should add: Most of the rest of our company does have offices. Our particular division does not, and most people hate it.

I'm ambivalent; the open space plan works pretty well on teams, but if you get /two/ teams in the same open area, it's a misery of cross-talk and extraneous noise. Perhaps extreme mobility would help, a-la Valve, where people can dynamically choose their neighbors]
There's no way to capture mic input with HTML5 now.
Harvard Business Review did a study back in the mid-90's comparing the cost to manufacture in a range of countries (outside the US). Mexico came in at the top ranking for lowest total cost of operations, much of it due to reduced shipping, reduced lead times, and tax benefits due to NAFTA. A lot of the problems with Mexico, though, are due to infrastructure and workforce.

When I worked for a big electronics multinational, we had a plant in one of the Mexican maquiladoras. Management wanted to expand operations there, but the problem at the time was that the power grid and water supply in the area weren't sufficient.

The factory I visited was nice, the working conditions were safe and clean, employees had a straight 40-hour work week, and the atmosphere was friendly and relaxed. But according to the plant manager, there was really high turnover. This wasn't a sweat shop, the pay was good, and they weren't any chemicals or other hazardous materials - conditions you often read about regarding the high turnover in maquiladoras. Whatever the reason, it's really hard to run an operation when you lose the majority of your trained workers every year.
Modulo a prime ideal you're only guaranteed an integral domain. The residue ring is only a field when the ideal you're taking as a modulus is maximal. All maximal ideals are prime, but the converse is not true - for example in the ring Z[x] of polynomials with integral coefficients the ideal (p) generated by a rational prime p is prime but not maximal.

There are of course many rings in which all prime ideals are maximal. The integers, for example, and more generally the integer ring of any number field (which are not always principal ideal domains, but are examples of Dedekind domains).
Doorways may cause memory flush [pdf]
Yeah, he looks a bit dazed.
Do as I do -- get your own domain.

Then you can have as many email address as you want.
How to try Windows Phone on your iPhone or Android Devices?
Anyway this thing relies on javascript too, which I thought was a stretch to call 'pure html5'...so depending on your needs, Flash (which can use mic input) might be just as acceptable as javascript...then again, it might not be.
Nitpick: GSoC is not just OS related stuff. One of the areas that they are funding (exciting to me personally) is development of CGAL which is the most popular and powerful open-source library for computational geometry (http://www.cgal.org/gsoc/2012.html)
This is a bit of FUD IMHO

Also, I've thought for some time that P2P car sharing should be over longer terms, like months.
Japan, Korea, and China are really just three countries at different places on the same road. There was a time in the 20th century when the story of Japan was young people moving from the countryside to work in sweatshops taking in raw Chinese silk and turning it into spools. But the workers were paid more than they'd get on the farm, and the capitalists accumulated capital, and the supply of surplus labor was absorbed, and by WWII Japan was in more or less the relative position that Korea is now.

And China seems to be in more or less the same position that Korea was under Park[1]. Of course, China has this huge hinterland that wasn't there in South Korea, and there's nothing saying that China's political evolution will look like South Korea's (hopefully it won't look like Japan's). But its engaging in almost exactly the same sort of export led growth under an authoritarian government.

[1]http://en.wikipedia.org/wiki/Third_Republic_of_South_Korea
New Normal: Majority Of Unemployed Attended College
Pakistan Blocks Twitter - and why
User Experience Vision
In the next installment of this series we will show you how to format your output with printf.
i think the dataset is way too small, only 166K rows? That's not really interesting. if you want to compare, make it at least a few millions
There's a reason they are always hiring. Churn is accepted and regular practice. The CEO is quoted as saying, "The graveyard is littered with 'indispensable employees'". They chronically under-pay and overwork. I could go on forever, but in summary, they charm perspective employees into a truly toxic and demeaning environment.
Don't forget that web services are a great way around the gpl. Just slap a subscription fee on there and don't distribute the server-side code and you can do whatever you want with it and/or charge whatever you want for it without being in violation or giving a competitor a chance to copy you. worked for Google.

gpl client-side code of course you cannot protect in this way (except your trademarks).
When Keeping it Simple just doesn't work
You know how I know he's in love? He put on a tie.
If you're considering this, be aware that writing JS that takes advantage of new JS language features in v8 and not present in IE/Rhino is not considered bad form in the node.js community. Also, Rhino is ~50x slower than v8, which doesn't show up in microbenchmarks but probably will if you write any real code with this.

I'm waiting for Nashorn to try messing with vert.x/js but that still seems to be in stealh mode.
Maybe it's "too much too soon" from a new account? I think all the submissions I made so far came from technology review articles I've been reading so perhaps PGs code thinks I'm an account created to spam for a particular domain.
don't know where to start..

1. it's confusing (atleast for me)
2. a lot of his charts don't start with 0, this leaves the impression that e.g. mongodb is 3 times faster then PG, when in reality the difference was like 5%
3. one scollable page with multiple pictures would have been much better, imo
4. About the page itself: i don't see how many times the benchmarks were run.

The conclusion shows that even the writer is mislead in interpreting the charts...
"PostgreSQL performs worse than MongoDB in the retrieval queries but the time it takes is negligible (we are way under 1 second)"
What does it matter that it's one second?! That's stupid. His charts show for example for get_email 0.001 seconds versus 0.005 seconds. That's 5 times faster! Saying "that's so small, i don't care" sounds bad. Unless the author meant some other charts...

Also, when i'm at it, i am not sure if this is a good benchmark at all. 0.001 seconds is an extremely small value to measure. I doubt it is usefull for comparison. But it may be ok, if this is would be some "real-world" example where queries don't take long. But the benchmark is not "real-world". At all.

I would have liked to see a more realistic one (the dataset is ok), with multiple concurrent queries and also with measurement of CPU and memory consumption..
Anybody know of a teardown of the UK iPhone charger?
I don't understand why they aren't going after the dead guy's insurance. He's the one who was at fault, not the owner of the car, so his insurance should be the one to pay for the injuries.
Why Couch and not Mongo?
Tutorial: Chatting on Twitter using Pusher (1/2)
I've implemented the inverse of this with Common Node (http://olegp.github.com/common-node/). Common Node lets you run synchronous looking code compatible with RingoJS (server side JavaScript on the JVM) on Node.
But once those SRBs were lit, it was going up, or blowing up...

While it's not a capability unique to Falcon, it's still neat that they're able to be sure every engine providing thrust is operating normally before they let it go.
If the person didn't have their own car, I would be surprised if they had their own car insurance. The victims could sue the estate, but there might not be a lot of money in it.
Liability law allows the injured party to go after both, and if one of them was without insurance . . .
Because that's not how car insurance works. You purchase a policy to insure your car (and in most cases other drivers in your family). Car insurance doesn't insure the individual against whatever vehicle he may be operating on any given day. That's why your car insurance is based upon the make/model/year of your car, as well as which state it is registered in, how many miles you drive it per day, etc.

It also seems from the article that they haven't determined who was at fault.
Why is Ruby/Rails the best?
Hey guys,

What are the pros and cons about ruby being good for web development?

I've been reading a lot about it, but I'm not a developers so some comparison don't make any sense for me... can someone explain me shortly what makes it better than other language.

Like if I was 10 years old.

thanks :)
What exactly is the author's conclusion? To ask more questions?

It seams to me that in a post named X-vs-Y you should arrive at some sort of conclusion. Say, X is the way to go or something like that.

I'm not a db geek and I'm not pro-NOSQL or pro-RDBMS. Having no horse in the race, and a very modest knowledge of DBMS, I wonder what would be the best choice in this specific use case (building mailman archive)?
For binary strings a and b the Hamming distance is equal to the number of ones ( population count) in a XOR b.

Population count of x is not the same as x, so... how are the images the same?
How do I get it to work with Chrome 19? (the demo. it says not WebRTC support)
Some immature thoughts on Facebook IPO and Valuation
Our developer understood the views on Couch and simply couldn't get Mongo's views working with nodeJS. It's a human preference and works out perfectly - so far.
Refloat of Italy's Concordia wreck to be biggest ever
This creates a great opportunity to try doublehacking with your friends:

http://www.youtube.com/watch?v=u8qgehH3kEQ
I'm pretty sure the bottom billion still don't own cellphones. But this is a smart idea for the bottom billion of cellphone owners.
The I is supposed to be for Inexpensive. Are we there yet?
Opera Next has it (so it will be in the forthcoming Opera 12): http://my.opera.com/ODIN/blog/2012/04/17/web-page-camera-acc...

Chrome also has it, behind a flag.

(the parent comment originally asked when browsers would support getUserMedia)