skysight-inc/HackerNews huggingface dataset:
It's nothing to do with "high frequency" or high volume trading. It's grounded in the fact that firms base their trading strategy on scraped sentiment and macro news. When a delta occurs between reality and signal input all hell breaks loose. All of which has nothing to do with the speed at which trades are submitted and executed.

A financial tax is laughable. That would truly impede market efficiency, a much better approach would be to mandate a minimum holding time of each order in the ELOB say 1000 micros before it can be amended or canceled.
> They want to keep the people making those engines employed.

It's more like wanting the companies that make them more profitable by requiring no retooling. I don't buy the "it's about the workers" thing.
My point was more that by the time the got a reasonable level of performance out of Flash on mobile it was too late: the industry had moved away from it as a platform.
I just checked the past 5 SIM cards I've used from 5 different countries and they all had free incoming SMS while roaming. Seems to be a general rule. I guess there could be exceptions?
While your anecdotal evidence is endearing, it is at odds with the actual data that researchers have compiled. Which the article briefly mentions.
This event is even less deserving of being called a "crash" than the so-called "Flash Crash". The markets did not crash; they blipped. Average investors should not have been affected at all.

(Some probably were affected due to stop-loss orders, but those simply should not be used-- index mutual funds are a perfectly good way to gain equities exposure.)
Hi Everyone,

I created a free - research based - usability checklist, which can be used to catch common usability issues on websites before doing expensive user testing.

By fixing obvious usability problems you get more meaningful feedback from user testing.

Please help me make this service better by sending some feedback. Do you find this useful? Would you use this? Should I develop it further?

Many thanks in advance!

-Nina, nina@userium.com, http://userium.com
Last nail in the coffin, the Unity Stage3D demos were easily the best examples of what Stage3D was capable of. Made Adobes examples look like a joke.
I might be the weird exception, started in the db/OS/backend, and ended up in web front end and mobile. What I found is that front end is closer to what the business clients see and what they would pay. Business users really can't see and don't care what the backend does as long as it works.
IIRC, there was a survival horror game that claimed to learn from and adapt to the player in order to provide a scarier experience (playing to the player's phobias and such). Not sure if that qualifies.
Yeah I couldn't make sense of the arrows but I only know AI from 2d and have 0 clue about 3d game development.

Most toy examples I know use an even square grid so I was wondering if I might be missing something there.

Either way thanks for the answer (same goes for the other posters who provided links)
I have money, help me spend them | Razvan Girmacea
It didn't work very well anyways. You had to severely limit the C# features you used in order to target Flash. The majority of plugins didn't work, etc.

With their recent announcement with Facebook to make the Unity web player plugin experience more pleasant, this is much less bad news.

And hopefully they're working on an HTML5 target as well.

So, just another nail in the coffin for Flash at this point.
How to rob an online casino
Feature Phones vs Android
How long will it take Android to catch up? we will see...
But why go to the US? A British citizen can study everywhere in the EU. Personally, I would recommend going to Germany (disclaimer: yes, I'm German), especially for an education in engineering. In many Univerities here, you pay less than 500€ a year (and might even get free public transportation with that). Granted, there is the language barrier, but on the other hand, it's rather cheap to spend a weekend "back home" when you feel like it.
The title is overly pessimistic. We may have wanted flying cars, but the mobile internet is far more empowering/revolutionary than moving cars to the air.

The problem the article highlights will self-correct. Twitter is a good additional news source because it is unfiltered and because of the multiplicity of sources, although we need to adapt to taking news in this form. I wouldn't buy or sell stock, or do anything drastic based on one source. Logic dictates that if the White House were bombed, lots of people on the ground in Washington DC should also be tweeting about it. As we become more savvy, Twitter's influence (the problem according to the OP) will actually be more of an asset. It probably already is.
Cannibal Craze in China
Everybody is entitled to their opinion, spit. I appreciate that hers was well written and cogent.
Please elaborate on your "implementation". The way I see it any implementation of a tax would sorely affect: Resiliency of price discovery at certain quantum's, Depth, Immediacy of execution (whether mechanical or economic) and breadth of liquidity.

Not to mention massive compliance overheads and loss of efficiency in the middle office. Such a tax could in theory only be implemented on lit exchanges! More volume would move to the dark ATS'S/ECN's and Crossing networks. Shit people would just internalize and cross order flows and never actually execute a "trade". Making your solution pointless.

Keynes hahahahaha.
Search algorithms (especially ones using heuristics such as A*) are squarely in the AI category (planning a sequence of actions).

From a broader perspective the entire question of "should these bots seem humanlike or act rational" is a typical AI question (think the 4 squares of AI definitions in R&N). In this example it is specifically of interest to find a path that is not the most rational but rather the most humanlike (well technically I suppose you could find a performance measure to judge humanlike and optimize that and it would be rational after all).
The original article misses the whole point of the NSFileProtection API: the strongest level of protection, NSFileProtectionComplete, prevents access to files while the device is locked. The whole point of the API is to protect things until the user has authenticated. (It's quite possible Mailbox is already using this API, given the evidence presented.)

In other words, this is the expected behaviour when your phone is unlocked.

See: https://developer.apple.com/library/ios/documentation/Cocoa/...
Or, you could just... open up Mail.app? and read the emails without a tool haha.
Gigawatts per gigawatt is a poor measure of energy efficiency because all forms of energy are not equal. Gasoline is a highly compact easily portable power source that also happens to fit into a lot of existing capital equipment, a gigawatt of "gasoline" power costs more than than same amount energy in the form of natural gas becausee it has a lower energy density and isn't not as easily portable. A process that used two gigawatts of coal or natural gas to displace one gigawatt of gasoline would be inefficent under your measure but make perfect economic sense.

We live in an economic world. Rational people are going to make choices about what type of energy they use based upon price. If one choice uses more gigawatts than another but is still cheaper people are going to chose it and it will be disruptive.
Not that relevant, but I was rather impressed by Jamie Roberts qualifying as a medic while playing rugby professionally and at an international level:

http://www.bbc.co.uk/news/uk-wales-22154392
Looks like it' time to retire the 40 year olds. It's looking like we're going to quadruple the number of H-1Bs in the Rubio/Shumer/McCain bill.

(Source , National Public Radio ...
http://www.npr.org/blogs/alltechconsidered/2013/04/03/176134... )

What H-1B Employers Say

NPR repeatedly tried to interview the biggest H-1B users, but none agreed to talk.

No one is talking be we all know what's going down.
That's not worrying at all. Considering you need the passcode of the device to do so. If they have the passcode, or there isn't one, then the attacker can just open the app and look without extracting the files. These aren't passwords stored in plaintext. This is plaintext stored in plaintext.
Throughout my career and my life I've followed this strategy disparagingly called being a doormat below. I have a friend who has followed the opposite strategy, always asking for and fighting for the most he can squeeze out of an employer and life. Strangely, I have often been paid more, been given more benefits and been generally happier. I think this works because unlike what many people seem to think, the other side aren't typically sociopaths trying to squeeze the last drop of blood out of the employees. But they will respond that way when pushed.

People generally have a solid understanding of what is fair and what isn't. When we start a negotiation from a point of unfairness and unreasonableness, both sides are then on the defensive which anyone who has read Dale Carnegie knows is a recipe for failure. I'm not sure I buy into the OP's idea of asking for $0 since that's just as unreasonable but it's unreasonable in a way that brings the other side closer instead of pushing them away. If you sincerely say you want to work for what you make, the majority of people will want to give you what you deserve. Are there people out there who will immediately try to screw you? Yes but that happens, you get as far away from them as possible. And if you can't recognize those people, you have far bigger problems than learning how to maximize your negotiations.

Negotiations seems to work best when they are discussions, not attempts to get the most of of the other side. Of course, if you're working for a boss who used to be a used car salesman or a sociopath, by all means, be prepared to have to fight for everything you want. And be prepared to be miserable to boot.
What does this have to do with HFT? If I had someone (man or machine) managing my money and a credible source had reported two explosions at the White House, and there is some chance it could be true, I would like them to incorporate and react to that information and the likely outcomes as quickly as possible. And then if it turns out to be false, I'd like them to react to that as quickly as possible as well.

Which is exactly what happened. No different to a rumour rippling around an old school trading floor and then being discredited. Just faster and more efficient.
Language barrier probably has a lot to do with it, but top US universities are forever in the media via US TV Shows, Films and news coverage.

I could probably name quite a few Ivy League institutions but nothing for Germany. Of course, anyone seriously considering this would do a lot of research but the US gets a fair head start.
In my experience, likelihood of spam content is correlated with number of ads or tracking cookies (the indicator number in ghostery). I expect posts with more than 5 tracking cookies/ads to be spam

(and yes, techcrunch rings in at 15, and almost all of their content is garbage)
This is good news. Flash is a dying technology, and HTML is the way forward. Hopefully this means they will make a HTML5 version with WebGL of their player.
Why on earth would you want market makers out of business?
Samsung Galaxy S 4: The empire strikes back with a faster, sleeker handset
Samsung Galaxy S4 review
I built an Oculus Rift clone with an iPad
But it's not. The only data cited in the article showed that "salary increases slowed" as engineers (in the semiconductor industry) grew older.

Stated more clearly: "Once you get to a comfortable multi-six-figure salary, you'll find you don't get spectacular percentage increases quite as often." That seems applicable to any field anywhere.

The article correctly states that an older guy is likely to be making three times as much as a new grad, while incorrectly assuming that he's still only capable of using the technology he learned 20 years hence.

So, no. The fact that the author couldn't actually come up with any statistics implying that being old is actually a bad thing, despite combing the Bureau of Labor Statistics and Census for data, seems to be a good indicator that there's nothing to worry about.
In my experience, higher income buyers are tired of being limited to black and gray phones as well. That was a big selling point of the Lumia 920 to me. It didn't need a case and it came in the color I wanted.
10 Modern Devices That Will Change Our Lives
Possibly, although I wouldn't say it mattered. £2.50 can hardly be classed as a huge amount of money. The benefit of paying that amount vs waiting a few days and getting a version that's below in terms of quality is pretty obvious.
Two-step authentication, especially for something as prominent as twitter, is always a good thing. So, kudos to them.
How I Explained REST to My Wife - REMOVED due to gender bias issues
The link is to the original. The scribd link is to the side and is automatically added by HN.

(I never really liked scribd and with pdf.js it's clearly obsolete)
By the time dual core phones like Galaxy Nexus arrived on the market, the battle was already lost. Adobe should've made Flash "work" from the days of iPhone 3GS/first Droid.
Ask HN: Why do some YouTube submissions get [dead]ed?
From time to time, I will submit an interesting YouTube vid that's pertinent to hacking. Such as this one about a guy who built an Oculus Rift clone from an iPad: http://youtu.be/4uUsctp3CJA

These links are immediately marked [dead] yet from time to time I've seen other YT vid submissions sail through. Can someone explain why?

I understand the aversion to turning into Reddit or MetaFilter, but I'm not submitting cat videos. If there had been a blog post instead of just the video, I would have submitted that link.
I'm also a programer always looking to build some fun-n-learn kind of project. Your advice for building onto third party API is good.
Satoshi ‘s Fortune: a more accurate figure
Yes and no. The front-end (as far as web goes) is still HTML and Javascript, just better frameworks. And the base patterns of good design still apply regardless of the front-end technology.

The back-end in the last five years or so has definitely had a lot of change in data stores, emphasis on RESTful API exposure to front-end and other back-end services, web server choice and style (WSGI, PSGI, FCGI, etc).

The biggest difference is that a front-end developer has to worry about the performance of a single client using a single state machine. The back-end guy has to deal with making a site fast and reliable while supporting 100s or 1000s of those clients concurrently.

Crash the browser every 100K views and someone reloads. Crash the back-end every 100K views and someone gets fired.
Can you share the source code for this modification? Interested to diff the two and see just what magic is required to turn something that does not support touch events into something that does. Everything I find on stack exchange about it outright doesn't work for me on the platforms I need to support. Fingers crossed!
pdf.js works as well.
It took quite a long time for Adobe to get mobile Flash to the state it's in now. Years after iOS devices were shipping without it. The earlier mobile versions of Flash for Android were not good.
great idea and a nice list. any links to articles that support the reasoning behind a recommendation would be useful, though definitely not neeeded for every bullet.
I reckon all discovered examples should be posted by the browser plugin automatically to a central db where they can be analyzed. It won't take too long to build up a picture of which news outlets do this the most, then that data can be posted in a simple, updated list (with links to examples) for everyone to consume much as they would an email blacklist.

This could all be automated.
ZTE deal to pay Microsoft Android royalties leaves Motorola exposed
Indeed. Negotiation is about understanding what "finished" looks like. Winning is not always a desired outcome.

There are two drivers in a negotiation - concern for self, or concern for others. There are five approaches to negotiation depending on the degree of the drivers - integrate; oblige; compromise; dominate; and avoid[1].

There are times where you dominate your counterpart, and there are times when it makes sense to capitulate. You choose your approach based on your objective and your drivers.

No mention is made of strategy, however. Negotiation is tactical, and it is useful to understand its place in a wider context.

[1] http://www.negotiationlawblog.com/uploads/file/Organizationa...
Good news! Your service is now so popular, well liked, and extensively used that important organizations use it and trust it.

Bad news: Now you have to go the extra mile to make sure it isn't misused.

I think this still falls into the category of problems that it's good to have, barely.
It's a wonder anybody uses flash anymore
I see a lot of the easy-to-forget-but-we-all-know-we-should-do-them things, so bravo, thanks, and bookmarked.
Is A Twitter Account One Of The Most Valuable Assets On A Company's Books?
Here is the ginourmous confounding issue the presentation in the article:
> Why would any company pay a computer programmer with out-of-date skills a salary of say $150,000, when it can hire a fresh graduate — who has no skills — for around $60,000?

(my emphasis)

So how do you untangle the ageism issue from the skills issue? This article doesn't, but for the broader question you kinda have to.

How do you control for skills when finding out about ageism?

I'm pretty sure there's ageism in tech. This makes me a little scared. It's this exogenous thing that I can't control.

I'm pretty sure skills-decay is at least as common as ageism. Skills have market prices. They change.

This reminds me of a (PG?) essay that said essentially, if you're gonna call yourself a developer, don't call yourself an [X] developer, because you are not the language [X]. I suspect it's all the [X] developers out there who are seeing the most "ageism"

But they what do I know, I'm in my 20s.

[edit: typos]
Yeah, it's not anything amazing from my experience. I've heard the FEAR games had decent AI, as well as Far Cry.

If we're not talking FPS then I've been impressed by the AI in XCOM. God damn those bastards are hard work.
Reacting to unverified information is really dumb - that is the point here.
This has been posted multiple times before
Looks good. It should help raise awareness of common issues and help make more user-friendly web sites and applications.

Minor gripe: shouldn't it be alt attributes, instead of tags?
> Legal enforcement of how much gambling bank can do with the money, people with accounts there entrusted them.

And are the limits of "how much gambling" the bank can do with the money defined by some universal prescription or by the particular understanding established by the bank and the depositor in each case?

If the former, then we're back to universal usurpation of everyone else's risk judgments by... whom, exactly? Yet more human beings, subject to the same failures of judgment as the people who you claim are incapable of effectively assessing risk?

If the latter, where's the evidence that there ever was a breach of that understanding? Reward is proportional to risk, and those seeking high-interest investment opportunities implicitly acknowledge that with higher return comes higher risk.

> Noone considers full chain of risks.

Plenty of people do, and where sufficient information to make a confident risk judgement is unavailable, plenty of people take that into account and plan accordingly.

"Most people" do not feel they are immortal or perpetual winners; indeed, although the systemic effects of the financial crisis have impacted us all, the number of people who did not engage in irrational real-estate speculation far exceeds those who did. (The "everyone" I mentioned above refers to segments of the chain of investment, not to individuals in general).

> The only thing we can do is set up barriers to curb the risky behavior

No; there are plenty of other viable alternatives, like providing mechanisms to insulate unwilling third parties against the risk-taking activities of others. Most public policy and regulatory intervention seems to do the exact opposite, however, and seeks to shoehorn everyone in society into a single uniform pattern of interaction, which, of course, exposes us all to the new systemic risks it creates and doesn't account for, and leaves us little room for escape.

Let's regard regulation as what it is: a flawed attempt to mitigate the downside of universal social systems in order to sustain those systems, and justify corralling everyone into them in order to maximize their putative upside. The problem is that it just doesn't work: at best we're reducing small and predictable risk impacts for massive and chaotic ones, which doesn't yield an environment suited to evolutionary resilience.

As in everything else, variation is the key to stability and survival, and top-down regulation of individuals' subjective risk judgments diminishes variation. We need lots of separate baskets to put our eggs in, not one giant over-engineered basket that's ultimately no more unbreakable than the Titanic was unsinkable.
All of this... so true. Spot on. I'm seeing the same thing now. I'm in my early 30's and the younger developers we're hiring are doing all the shit work, and they are freaking out about following the rules and doing everything on deadlines. I've had the exact same realization about the deadlines being arbitrary, and ever since I realized the engineering talent gets to set the deadlines, I ignore most of what's dictated to me and I set them back. The management at my company can't do much about it because regardless of how long it takes, the work I do is the important technology work in the company and none of the other developers could do it (not now at least, maybe in a few years).

There was a bullshit fake article written by someone at facebook this week, some tongue in cheek thing about how awesome it is to work at facebook as a developer. Reading it made me sick, and right here you have articulated exactly why.
at first I was a little pissed about your comments, but on reflection appreciate your "tough love" approach. ;)

My hope is that I can continue to write my thoughts and this plugins list will get smaller. I'd love to advance and share that experience. Out of this list, NERDTree will probably be the first to drop off, but it is very handy for lost noobs.
The front-end guy also deals with the users more. And after spending 20+ years doing that, us older geeks are more than happy to moved to management or the back-end. Peace and quite.
A few years ago there was a strange byline on a few tweets from @spam, it said "by {username}" indicating that there was some sort of system allowing specific users to send tweets from a different account, here is a screenshot from January 2010: http://i.imgur.com/o0iVS.png

Does anyone have any insight on why Twitter haven't implemented that sort of system (nominated accounts able to tweet from a corporate account) and seemingly abandoned the idea in 2010? One of our Twitter accounts has ~30,000 followers and we have to share the password amongst the company in a spreadsheet, that sort of poor security is encouraged by a single login model, with all the previous high profile account compromises it seems strange Twitter hasn't addressed this before. Maybe someone knows why, or can speculate why?