skysight-inc/HackerNews huggingface dataset:
I'll let you in on a little secret - paywave/paypass etc are EMV cards. The interface is wireless and they have a shorter transaction flow. There are less (zero) customer validation techniques, final evaluation (pass/fail) takes place at the stage a 'normal' EMV transaction would decide on pass/online/fail.

As usual there are variations between implementations, but underneath it's all good-ol' EMV :)

So I doubt that these could be supported easily by Coin, it requires various keys that the banks do not allow to escape.

If Coin do manage to get talking to banks about allowing wired or wireless EMV apps to be loaded onto a customer Coin card then that would be awesome. I predict that layers of bureaucracy and brand-management will prevent this.

But good luck to 'em if they try!
Fix your boring slides
Coin is a very neat idea that will be hampered by many practical limitations.

How durable will it be? I routinely neglect to take my wallet out of my pocket, and end up putting it through the wash. Can Coin survive total immersion in water for an hour? What happens when my dog invariably decides to chew up my wallet? What happens when I drop my Coin in sand?

Moreover, the cost of a Coin becoming inoperable is far greater than that of a traditional card. Worst case scenario, my bank will send me a new card within a few days, which will cost nothing because the cost of manufacturing plastic cards is negligible. If my Coin breaks, I have to shell out another $100. Unless Coin is as indestructible as plastic cards (which is highly doubtful simply because the mechanics and circuitry in Coin create a level of complexity far greater than that of a piece of solid plastic), It will end up costing me more in the long run.

What about security? If I were to lose a plastic card, the maximum risk I'm exposed to is a single account being defrauded. If my Coin falls into the wrong hands, the bad guy has absolutely everything.

In a perfect world, Coin would be great. Unfortunately, the limitations of modern life and commerce make Coin impractical and even dangerous.
I am assuming that the more clustered the circles are, the more like minded the party is? Each line represents a vote. So, a thick line between 2 congressman represents more general agreement, and thinner line means they agree only on a few things. Also, the position of the circles to the left or the right represents the extent of their political leaning, based on their votes.

Above are just informed guesses. A key really would be nice.
Magic Johnson is quite the entrepreneur. He's worth $500-$700 million.

http://en.wikipedia.org/wiki/Magic_Johnson_Enterprises

http://en.wikipedia.org/wiki/Magic_Johnson

I'm sure there are others but he's one of the most famous.
Quality of courses. Udacity offers very high quality courses, just like Coursera, not like University of Phoenix.
It would be helpful to see an animation to clarify this, but it's interesting to quantify how increasingly polarized this has become, starting in the early '90s.
Looking through the documentation, though, it's even worse than just saying every alter is an offline alter. There are a few, but significant, schema changes that one could want to make -- like when dealing with a table that has full text search -- that need to be done offline; you have to tread real real lightly in dealing with online alters. I'd personally argue that online alter is not ready for prime time with 5.6; there are too many other things they need to do with the database engines to make it really useful.
In 1995, Investors Had One Question: What is the Internet?
Similar effects, but the force is spread over a larger area, and shouldn't swell the scalp.
But then I have to go to the bank.

I'd rather have a chip in my arm.
It's great that the instructor-student model is becoming increasingly available, but is this really what innovation in education has come to?
Well, you guys deserve it. I've had so many hassles sending email that nowadays I just use you to do it. The centralized, one-page instructions on setting up are especially helpful. "Do these things and your emails won't bounce or get sent to spam".
Merchants eat the costs where no EMV card was used.
Customers eat some costs where the bank can prove negligence, and face court if the bank can prove fraud (i.e. signed statement it wasn't you but later the CCTV footage is found. Oops)

Other than that, here in Europe, customers are protected by law from having to take on the liability. Varies by country, but basically it's a case of "you're responsible to see that nobody else gets to take my money, that's why you're a bank numbnuts"
Very nice! I love minimal distractions. Now I just need to script out redirecting me to this site anytime I hit a YouTube.com URL.
There is a big danger in this line of thinking. Pretending like we don't need to inherit a lot from the previous generations, or from people who think different from us in our current time, is willful ignorance. Every wild-eyed utopian who has striven to rewrite all of the rules has tended to fail pretty badly and has also tended to bring a lot of other people down with'm as well.

We do not need ideologies that call for full breaks from the past any more than we need ideologies that offer no improvements.

Taking over from the previous generation and moving things in a new direction is something that should be carefully considered and by getting as much feedback as possible. If revolutionaries actually listened to the people around them, we'd have a much better world out there...

I'm afraid that current trends have done a lot of damage to a bunch of existing cultural institutions. An easy example of this for readers of this forum would be the music industry. It has been a full-on technological assault which fragmented everything. The sales, the business and the artists themselves were absorbed by Apple, Facebook, and Google and a select few other social networks.

Art needs to be on the outside looking in, so it can properly reflect on society. And art should find it's way in to everyone's hearts, no matter their profession or specialties, so don't think I'm just talking about musicians here. And even within the scope of the music industry the "slacker middle class musician who should just get a programming job" is a really easy target and a huge straw-man.

You're gonna have to go out and define the word "art" on your own terms. Funny enough, you actually have to go out looking for it, it's not just gonna be whatever you read on Wiktionary.

I'll give you a little hint though. Wanton destruction of our cultural heritage is pretty much going in the exact opposite direction.
That happens to me all the time with my airline club cards. I always get to the airport and realize I forgot them.
This would be even cooler if it was somehow combined with the data from opensecrets.
Pathfinder's Mars Landing: To Reboot or Not Reboot [pdf]
Additionally better friction coefficients when getting the head out - should make things somewhat easier as well.
This algoritm pragmatically computes how far left/right a senater's polical views are by placing them in the corresponding place on the page
One thing that continues to bother me about Coursera (haven't tried Udacity) is why courses are offered only for a small window of time with stringent due date requirement. They tout themselves as this revolutionary force in education. Then why are they so insistent on continuing traditional university course model?

I wish Coursera would just keep the courses around for people to watch lectures, do exercises and HW.
There is a new significant technology released every week. Sometimes there are several in one day. When people seem surprised that I haven't heard of their new favorite tech it makes them seem inexperienced or dumb to me. Actually I think you can almost take any two random developers and there is a good chance they are each working on technologies that the other has never heard of. The thing is new technology comes out as soon as people think of it and type it in.
Yeah, that was what caught my attention. Just waiting for PG to add that to his list of industries to disrupt :D
Want to make your friends go streaking? Now there’s a (hacked) app for that.
This actually offends me that you called him Jamal Washburn. It's Jamal Mashburn, and you're conflating him with Chris Washburn who actually did go broke.
Language Field Trip: IDL
I think it's fascinating watching how the parties have split up more over the years.
I am fairly impressed with this actually. Live code refresh and showing results in the browser is very cool. Definitely this project can be extended to have OS-level notifications with the help of browsers (e.g. Chrome).

Also this approach can be adopted in many languages which doesn't have a rich IDE (e.g. Visual Studio or XCode). Are there any similar tools you know of in other languages?
Is data for pre-90s years available? I am really curious to see the 60-70-80s progression.
Me too :)
varun [at] semantics3 [dot] com
Cool. I didn't know if it was a bug or I was actually gagged/filtered, but my reply button disappeared, then later reappeared. Glad I wasn't banned. :)
There is a spec and discussion in the standards bodies for all of those AFAIK. For example for let,

http://wiki.ecmascript.org/doku.php?id=harmony:let

Arrow functions are being standardized as well,

http://wiki.ecmascript.org/doku.php?id=harmony:arrow_functio...

and for generators, the standards discussion led to a change in the spec, with the new version replacing the old implementation in SpiderMonkey (v8 recently implemented the new one as well).

In general see

http://kangax.github.io/es5-compat-table/es6/

where it lists compatibility for various new JS features. As it says there, let is supported not just in Firefox but also IE11 and Chrome 30.

It is true that Firefox shipped some of these several years back. I am not sure of the best way to find out exactly what the standards-track status was at those times.

But in general: Talking about the far past is counterproductive. We can probably find stuff that wasn't done properly by any browser if we look back far enough. But in recent years, there is growing consensus on the importance of not shipping non-standard things. That is the important thing I think.
Don't mean to throw a wet blanked over your enthusiasm, but this is a very new technology, and unless you work at a major partner, the chances are slim that you'll get access to the API soon. Or, come work at IBM :-)
I'm sorry that you're so easily offended. Wasn't my intent to misspell the name. Original comment has been edited.
That's true of ECDSA as well, and, in a larger sense, true of RSA --- the "Minding Your P's and Q's" research seemed to boil down to an RNG weakness. It is also, for what it's worth, largely true of all the modern AEAD modes.
+1 If the author could get data from 1980-2013, and make it into a 60 second animation, it would be really interesting to see.
I know Citi Bank has a disposable credit card number feature though their website. You had to log into your credit card account to use it.
There is no such thing as a shit task.

Added: That's a little too glib, sorry. Let me try again: From my perspective, if there's something that needs to be done at GitHub there are a few possibilities:

1. It needs to be done and it's getting done,

2. It needs to be done and it's not getting done, or

3. It's bullshit.

Cases of #3 become obvious pretty quickly. The best evidence: Searching for ways to make someone do it because nobody stepped up.

Cases of #2 can happen for a bunch of different reasons, but malice, apathy, laziness, or incompetence are the least likely ones. The most likely: Not enough hours in the day or not enough people with the knowledge necessary to be worried. No matter the reason for #2, someone at GitHub who is worried will generally try to get others to share their priorities, by persuasion, by hiring, or by prototyping.

Or occasionally by just jumping up and down and wailing.
Certainly a chart should be readable, but I think it's okay to ask for a few moments of careful study. I'm much more interested in a chart that provides some context or basis for comparison, if not with several series than with small multiples or a representation of the general distribution.
Well, git is a distributed VCS, so all you need in order to use it socially is the Internet. Just publish your fork on your machine (or just anywhere on the net) and anyone else connected to the Internet can pull it, github is simply superfluous for that, the Internet already connects everyone to everyone.
Without the court case hanging over this, I'd expect Google to offer authors something an opt-in "Google Books Upgrade" including things like:

- we'll use our scans to make a decent ebook for you (ideally better than your publisher would)

- we'll prominently feature a buy button next to search results / snippets related to your book

- we'll give you insight into queries that matched your book and what people did from there (looked at snippet, bought, ...)

- we'll give you more control over how snippets are displayed (e.g. how much at a time)

- and so on
Seems like Dropbox allows that many metadata calls. When I was testing this for myself, I started getting 429s when I would make 5+ refreshes in a minute, but it also rate limits on a user-by-user basis.
Well, that's just silli.
Not true. Watson style analytics requires HPC, the kind that Google and Microsoft do not (need to) build. Although, that might change with time as (cheaper) computers get faster.
It looks like the Democrats are coming together on their votes, and Republicans differences are widening. It does make sense, as the fiscal conservatives and social conservatives really are different breeds.
> It seems a lot of people don't know how to find out whether they're shadowbanned, or how to get out of the HN purgatory if they are.

Agreed, and as others mention, a little more transparency would be nice. When I signed up, I think I posted less than 10 comments, all perfectly civil and in-line, before someone informed me I appeared to be hellbanned (and was kind enough to comment on it and say they looked at my comment history and didn't see any reason). I don't know what heuristic I triggered or if it was simply a mistake, but my initial reaction was that banning was so arbitrary and capricious around here that I almost just shrugged and said, "ok, whatever, I'm not particularly invested in this site," and left. Instead I emailed info@ycombinator.com to ask why I was hellbanned, and I never got a response, but soon afterwards, the ban was lifted. I still have no idea what happened, and although I seem to have managed to find the right tone for comment threads, the machinations of the site and its rules remain shadowy and cryptic, so I have no idea if I'm eventually going to be banned again.

Edit: haha, I just went back and looked, and it was you who was so kind. Thanks, parent! :)
They are highly related. For instance, if you are using AES-CBC in your own program, but are not composing it with a MAC properly, you too are likely vulnerable to a padding oracle attack, and that attack is likely to be much easier to execute than Lucky 13.

In reality, you can safely look at TLS as a "best case" scenario; the number of vulnerabilities that commonly arise from homegrown crypto ("using AES in a self-contained program") are a large superset of the ones that have arisen in TLS.
for an interesting perspective on the extreme opposite end of the pro-athlete-financial-responsibility spectrum, check out the highly entertaining (even if a bit sloppy) documentary 'broke' by 30 for 30 (espn).

http://movies.netflix.com/WiMovie/30_for_30_Broke/70239460
Nice execution. I saw several pitches for unifying cards while working for a VC.

As a consumer I have a few suggestions:

1. Make the card switch/activation button detect the fingerprint of the owner. (The merchant or waiter sliding the card could press the button accidentally and switch to a different card)

2. Show me that a tap-scanning tool can't take the data for all of my cards. (from hackers to accidental taps)

3. Can a magnet disable this card?

4. What happens if someone steals my coin? Can I disable it remotely with the app? Can it happen automatically?

Good luck!
Show HN: Moon by Ai Weiwei and Olafur Eliasson
The Discovery of a New Element at CERN
As you call it gym for the mind, it'd be interesting to see something like netflix for schooling.
Can someone make a glass app that covers a politicians face with the logos of their largest interests? That would make politics bearable for me.
Since he used to play for the Heat, I would guess Miami.
Dart also compiles to JavaScript, and was designed to do so from the very beginning.
There are a variety of theoretical attacks on EMV cards. Some involve compromised reader devices. Some involve ingenious card-like devices that talk wirelessly to a device containging the real card and change some of the data exchange going back and forth. This may allow some transactions to circumvent PIN or other validation but all requires the original, stolen card.

One I just read about (yescard) could allow you to clone a card and could be used (most likely) for a half dozen low-value offline transactions. But it has no keys so can't fool the bank.

You can get a card reader/writer on the open market for about $10. Writeable cards will cost you a little more. Problem is that the card you want to clone isn't going to give up the goods in terms of private keys, PIN validation data etc, so like the yescard, it's going to be of very limited use.
There's more or less flexibility depending upon the course (speaking about Coursera). Some of the reasons given for having a schedule are:
- Provides a structure that a lot of people find useful
- Is necessary for any sort of peer grading
- Keeps discussion on discussion board in some degree of sync with the class.

If you signup for a class, at least the videos are kept around for some length of time for viewing. That may not be true with grading infrastructures and obviously not peer grading.

It's a tradeoff. I came into Coursera thinking that I'd like more flexibility. But I now see the benefits of a more structured approach so long as deadlines aren't too rigid. After all, if you want something totally unstructured, there is lots of video and other material on most topics on the Internet
Of course people make logical, informed purchasing decisions. But marketing and company communications are not what they rely upon to make them. They rely on trusted third parties. My blog post was not directed at those parties.

I'm explaining how marketers need to communicate with developers differently. Those same marketers will probably have models for how a campaign should work. And those models, if they are effective, are brief and do not appeal to logic, because most people don't have the time to wade through lengthy arguments. Marketers have a few seconds to connect with consumers. They do so with images and emotion. The point is too self-evident to belabor.

The post wasn't arguing that developers rule the world. It was arguing that developers, due to several factors, are becoming more powerful in the world, and that new power has consequences.

Have you finished with your straw men?
Mushroom protection from a mushroom cloud.
For those interested, I believe the underlying data is from DW-NOMINATE (http://voteview.com/dwnomin.htm).
And, in this case, the pubic interest aspect comes from the US Constitution ("promote the progress of science and useful arts").
What the author of this article just doesn't get is that Coin isn't supposed to be a long-term solution (at least from my takeaway), nor is it something that is intended to completely redefine the vision of future payments. What Coin intends to do is provide a unified interface for payments right now, today. Credit/debit cards are so ubiquitous that it's only natural we unify them. It's 2013, and there's still no comprehensive NFC mobile payment solution. Google Wallet can't really be used on a practical basis, and doesn't give you much security – lose your phone, and you're pretty much screwed.

Coin is most definitely a step in the right direction, and it's a simple solution. One of the hallmark traits of great design is its obviousness -- and Coin's design is obvious. A credit card that can act as multiple credit cards. Who would have thought?
Check out this paper:

Practical recommendations for gradient-based training of deep architectures, Y. Bengio

http://arxiv.org/abs/1206.5533

There is a section on weight initialization on page 15. In general, this paper has a lot of good information in one place.
Bingo. To the millionth degree. Most people are just blind to the pure amount of effort and work that needs to be put into to getting the right answer. They'd rather just stack it up to being "bad/dumb".
Appetite comes with eating.
Ha, I read this in Morpheus' voice.

"Do you think that's air you're breathing now?..."
I was hoping he would post references as well. I think there are no literal "management design patterns", he just means there are "design patterns for management" in the form of "management best practices". So you would need to dig into each relevant area of management and read the materials on best practices; dealing with staff, customers, partners, boards, ...
I once switched my laptop hard drive with a portable one bought at the store, by removing the portable's case and swapping that drive with my laptop's. I then had the new 500gb one in my laptop and an old 120gb in a new portable housing case. I joked to my friend who was with me that I could just return the now 120gb drive back to the store no questions asked. He told me I was an idiot if I didn't; he didn't think of it as stealing as I did. Unfortunately I don't think that mindset is uncommon with our society. What's worse is being moral can be seen as weak and stupid by those who don't see the long term benefits of having a moral population. (Probably aided by the con man often glorified as extremely clever and smart in media, when often he's just taking advantage of people's good will e.g. Catch Me If You Can, Matchstick Men, maybe 21 and Oceans 11. But people love someone smarter than everyone else so they want to emulate that) On the bright side most of the brighter people I know have good ethics.
(I'm extrapolating most of this negative rant.)

Coursera is founded by bored professors who were tired of seeing their students get rich, so they decided to do a land grab in an "online education 2.0" space. They don't want to revolutionize education. They don't want you to have the option of running open ended courses. They believe in credentials, requirements, sacrifice, and the holy university cram session. They want to keep repeating what they already do make just make it more wide spread (because wide spread translates into money these days).

Have you looked at running your own course on Coursera? They require you have a PhD to even be considered. It probably makes perfect sense in their world, but in the real world, it's just condescending.
I find this style really passive aggressive.
I've been using Guardpost in production for the past few months, and it works really well. I'm curious to see the internals. Thanks for this!
Pretty link bait-y title.
You'd expect an authoritative analysis of the product but half of the article is a Fox News-y "some people don't like pre-paying for pre-order" complain unrelated to the direction of payment systems. The other half is a subjective anecdotal nice to have wishlist on the payment industry.
Sound shockingly contrarian and ride the popular topic, old trick in the book.
I just call the bank and tell them that I need to get a new card :)
> Less than 1% of 1% of mysql users are using replication.

If you count all the crappy shared hosts, XAMPP local installs, and hobbyists setting up their own little VPSes, perhaps.

Using a single, unreplicated database instance in production for anything serious is bizarre. Failed hardware is hardly unheard of.