skysight-inc/HackerNews huggingface dataset:
This is not technically possible for most matching engines. There is simply no "fill order X bypassing price/time queue" message. In fact, NYSE doesn't even tell you that order X exists and simply aggregates all orders into "Z shares available at price Y".

Also, except in the case of certain rare events which cause high latency (e.g., yesterday), it is also illegal to play games like this. For instance, if the bid is 99 on BATS and only 50 on ARCA, and I want to sell, I can't sell on ARCA. (I'm grossly oversimplifying, of course, but my simplifications don't exclude the case of selling at $0.01 to fool the markets.)
New Head Coach Jim Calhoun-contract extension to five until the 2014
Here is the movement of Accenture as given by WSJ:

"With Accenture, for example, 20,365 shares changed hands at around $39.98 during the minute of 2:46 p.m., then another 68,516 shares were traded at $38 per share during the minute of 2:47. But then in the 2:49 p.m. minute, 66,277 shares traded at one cent. By 2:50 p.m., the stock was back up to $39.51."

The trade at 2:50 pm is the is the one that intrigues me , i can understand how the other ones can be blamed/attributed to HFT algorithms , but how does one explain the bounce-back at 2:50 from one cent to 39.51 ?
If anyone is interested in producing a kit or finished project to put for sale like this, I'm struggling through that right now and lightly blogging it. My first PCB prototypes just came in.

A good post to land on: http://projectexcitebike.blogspot.com/2010/01/how-to-build-y...
I just checked with my coworker Marko (author of Gremlin [1]) and he told me that no-one really has much info on this. Though he said that Apache Hama [2] + Angrapa [3] is a supposed to be a clone.

I think Hama is built on MR so maybe Google's version is as well?

[1] http://github.com/tinkerpop/gremlin

[2] http://incubator.apache.org/hama/

[3] http://wiki.apache.org/hama/GraphPackage
http://gettingreal.37signals.com/ch09_Context_Over_Consisten...
Of course not. And no one gets an alpine start to climb on 15-foot rocks in the high Sierra.

Oh wait ... except, they do!
We already have a system where anyone can buy any name they want. It's called .com. If we open up the root space as a free-for-all, then we will never be able to extend the system in the future. We can only do it once.
a phone faq? Really? when I hit those as a customer I assume that the company in question thinks that 1. I am illiterate and 2. my time has no value.

I mean, sure, I'm a nerd and hate talking to people over the phone. But talking to a machine over the phone is even worse.

The advantage of phone support is it's immediacy. if you get rid of that, you might as well eliminate the phone altogether.
Out of curiosity, do you have the Apple iPad case, or a similar carrying case that allows you to prop it up at an angle?

I found the iPad awkward to use without a case that does this, but after using the Apple case for the few weeks I've had it, I can't imagine using an iPad without it. It props up the iPad in landscape mode at the perfect angle for browsing/reading/typing, whether it's on a table, desk, or your lap. It also can prop it up at a more vertical angle for watching video.

I agree, the iPad by itself is awkward. Get a case for it and see how you like it then.
Or just use modules. Seriously, it is a true singleton.
Mokoko, the Venice of Lagos, Built on a Pile of Rubbish
This is a major coup for Scribd. I think it's a service that people begrudgingly and painstakingly used. But now it's just joyful, and kind of sexy. But as someone points out - Scribd is a bridge and if the things that they bridge to ever contain the ability to embed or convert to HTML5, what will they do?
brm - The video on YouTube doesn't provide much context for what it is. Happy to link to original sources that provide some context (video descriptions don't always do that), but in this case, didn't see enough there.
Streaming Twitter into MongoDB w/ Replication
Mac/Safari 4
Looks perfect. Better then boxed Flash version
Greece Debt Crisis Explained - Part 1
I think it's basically that prior to this finding, the general though was that humans wiped out the neandertals by being better hunters etc. but it now looks more like humans may have absorbed them into the gene pool.
The Birth of the Scheduled Web
Assuming it's connected via GigE, it's 70% wirespeed write and 213% wirespeed read, and that's without accounting for any sort of network overhead.

It's fast enough.
The OCaml type system is a really weak form of theorem proving-- the fanciest usable thing you can do is phantom types.

When algorithmic trading software gets written in Agda then your comment might make more sense.
Man, it's bad enough all the gringos wanted to learn Salsa last year and Tango this year. Now they are going to bring their kids? ;)

On a serious note: isn't diagnosis something that varies across the attitudes of the doctors? A psychologist friend from Venezuela thinks that Asperger's is a load of bunk, for example.
Yes, I can. However, the page sportmeets.com/join does not link to the CSS. The join page starts with:

<div id="content" class="fat-right-sidebar clr">
<div id="content-main">

Have you actually tried it? I know this is not a computer or browser specific issue. Just trying to help.
No problem in Chrome.
Getting locked up is often part of civil disobedience. :)
I had no idea John Resig is so young! I was picturing a gandalf-like grey-beard who had been coding JS since before the internet. :P
If you have a San Francisco public library card, you can get access to the entire Safari Techbooks collection online. Other libraries may have the same service. It's a huge resource and well worth the ten minute stop into a local library to sign up for a free card.
TLER is well worth the 50% premium, in many cases. With desktop firmware, my experience has been that fully half the time when a disk fails, it doesn't properly fail, it retries forever. Linux MD and 3ware hardware raid (the only hardware raid I tried) both hang up waiting for the drive to fail. (the 3ware keeps resetting the drive... but it will sit there and suck for two days just like md)

Back when I used desktop drives, I had several outages caused by a bad disk in a mirror. I log into the box and manually fail it out of the raid and we are good, but customers tend to get mad when their I/O hangs for hours on end.

It only takes one hung mirror in production, for me at least, to pay for a whole lot of 'enterprise' firmware drives.
Reg NMS does not allow a trade to happen outside the national Best Bid/Offer.

If the market is 99.99-100.00 you cannot trade even at 99.98
I'll take that risk.
why do you want to be an EIR?
Ask HN: Should I build my product or my portfolio?
I asked this in a thread about something else yesterday and could use some advice. It's about where I should focus my time to start bringing in some cash.

Should I focus on the product I want to build and possibly fail months later with nothing to show for the effort and no budget left to live on (I'm still recovering from the last one)?

Or should I build several smaller demo projects as portfolio pieces I can shop to get client work to fund the part-time development of my eventual product? Especially considering that my walled-off enterprise projects are inaccessible and built with tools other than the open source ones I'd prefer to be working with.

It's almost like starting from scratch.

For example, Rails ads usually specify "2 years experience with high-traffic production apps" or something like that. Should I build a bunch of small demos, free and consumer apps?

I'd be interested in reading any success stories here.
Less like a tip, more like a requirement. Clicking to advance didn't work for me. :(
Which means "Texting 2.0" or "Mobile phone 2.0" is the next big thing. It is time to say farewell to "web 2.0".
Hmm. Speculators choose to avoid a market which they feel is highly risky. For this, you believe they are con artists.

Similarly, any person who doesn't put their retirement fund into junk bonds and penny stocks is also a con artist. After all, they are avoiding risky markets!
It's not absurd. Of course there's a continuum of views, I didn't suggest otherwise, but the parties each publish a manifesto outlining their policies well in advance and it seems bizarre to only make up your mind at the last minute. People keep "waiting to hear" what the leaders have to say on crime or the economy or whatever. It's in their manifestoes and it's fairly consistent with what they've been saying for the last few years. Policies are not decided on the fly during debates or news shows.
Very similar to the arguments of the Luddites: The power loom is putting workers out of a job!

Some attempt to do something which gets the unemployed back to work could be good, but trying to create make-work by using more people than a job requires is not.
The HTML5 fonts look fine for me (FF 3.6.3, OS X 10.5), but the text overflows the right margin rather badly, and it persists even after resizing. I hope they can work out the kinks.
We're probably going to do something to improve the toolbar hiding interaction. Thanks for the feedback.
I wondered about that also. I was a little surprised to see that he didn't (appear to) put in any sort of shock mounts or buffers between the side plates and the drives themselves.

He seems to know what he's doing, though, so perhaps it was a purposeful tradeoff in order to use the sides as heat sinks? By mounting the drives without shockmounts, you can transfer heat directly from the drives to the enclosure chassis. In terms of preventing drive failure that might be more important than vibration reduction.
he's just giving the play by play on the price basically.

a "handle" is the whole number value, so when he says "down 65 handles" S&P futures are trading 65.00 points under the closing price from yesterday.

in the pit they generally refer to just the unit place and the decimal value:
"5 evens" = xxx5.00, "seven halves" are xxx7.50, "seventy evens" == xx70.00 (in this case it was 1070.00 in the SP 500 future price).

when he says "figure bid at oh five" at the end, figure refers to a hundreds handle, (in this case it was 1100), so the two sided market was 1100.00@1100.05.

I'm shocked that he's saying its the craziest he's ever seen because it was like that in about the same duration about 2 years ago. one morning S&P's printed down 80 handles or so in a few minutes and came all the way back up just like yesterday.
Ajax style Loading Animation in CSS3
Uh, Wade Meredith here. That second infographic is mine. It was the most successful blog post on Healthbolt.net (my blog at the time, I ended up selling it to b5media a few months later). I had a couple of other big hits, but this was my favorite.

I'm glad they remark in the OP about the post taking on a life of it's own. It has 4k+ comments and has turned into an informal support group for people to share stories about quitting successes and failures.

It's pretty much the first big graphic design project I ever undertook (I had built a Wordpress blog and was reskinning it every month or two to teach myself how to code, so I thought should start getting serious about design as well). It was by far the most rewarding post I made on that blog out of about 400 over the course of 9 months. I think it's helped a lot of people and I'm glad it seems like it's going to help more in the future.

The actual post finally ended up here with an add-on article tacked onto the front of it (http://blisstree.com/feel/what-happens-to-your-body-if-you-s...)

While the content changed hands a few more times over the last 3 years apparently on of them involved the first ~400 posts on the blog, which I wrote, getting attributed to "Liz Lewis". (Disappointing.) Considering I sold the blog and the content with it, though, there's nothing to be done about it. Such is life.

The important thing is that the post itself, originally published in 2007, now has 4,239 comments and the last one was left 20 hours ago. Pretty cool stuff.

TL;DR I made the "most popular" infographic of 2007 while I was still wet-behind-the-ears as a designer, and it's cool to see it leading a life of its own 3 years later.
"Hacker"News cracks me up sometimes.

Who cares if the video is a joke or not? It's awesome either way. Just appreciate it and get on with your day.

But, instead, there has to be analysis, and physics, and obviously there's a 20-foot submerged walkway that they built just for this joke video. Unless it was already there! (Ever tried running across something that's submerged under water for any length of time? It's slippery as fuck, which would make these guys incredible athletes still.)

Sheesh, get over yourselves already. This is pseudo-intellectualism at its worst. Nobody here knows these guys, probably nobody here has put any serious effort into trying anything like this, so nobody here has any applicable expertise to speak from. Just appreciate it as a nifty trick and move on.
Nope, I'm pretty sure we can blame them for it.

I can also blame them for adding a sensationalist headline which promises "Unbelievable Facts And Figures" and then follows it up with a combination of a few completely boring facts (omg half the world's population is under thirty as you might have suspected if you thought about it for a moment!) and some statements which are unbelievable only in the rather trivial sense that they're almost certainly complete bullshit (one out of eight married couples met via social media? I imagine at least seven out of eight couples married before there was such a thing as "social media")

So in conclusion, I do blame them for putting together a link-whoring, sensationalized, extremely dull blog post based on someone else's work for the purposes of attempting to drive traffic to their site under false pretences.
Info graphics irritate me, they dumb down what is already trivial to digest. I'm sure it fits right in with 'talking points', 'power points','infomercials' and 'advertorials' but it isn't for me.

I prefer to read some solid text, graphics optional, if they have to be there to illustrate the points in the text then so be it.

People are lazy, and infographics seem to tap in to that so I don't doubt they'll be successful, but it is just another step on the road to idiocracy. Keep those gray cells working, use them or lose them.
Slightly less load in Chrome for me but it's still significant.

What probably matters is I am using Windows XP with integrated graphics on the motherboard.

Are you using Windows 7 with discreet?

I am betting a Flash version would have the same or more load so the issue is probably moot.
Not necessarily. They can always IM each other during dinner.
The biggest con out there is government employees making salaries that are on average double than private enterprise... but I guess that's a different discussion.
they pretend to convey unbiased information
pretty interesting tidbid:
the pit language and structure is highly specific and has developed built in redundancy to prevent misunderstandings.

the word "for" typically only represents bids or purchases and the word "at" typically represents offers or sales.

so you can sell AT price X, but you don't sell FOR price X (some people say it wrong, but old timers tend to hate it).

typically to represent an offer you'd say "i'm [price] offered" or "i'm at [price]", but to represent a bid you'd say "i'm [price] bid"
you'll notice he says "i'm offered AT [price]", but you wouldn't say you're bid "for" [price], you'd say "i'm [price] bid"

additionally in transactions, you'd say:
sell [quantity] at [price]
pay [price] on [quantity]
inverting the structure gives another sanity check when people are checking trades verbally.

and those guys have insanely good memory, because they make these trades by word of mouth then card it (write up a paper slip) after the fact. when its busy, you can be carding trades up well after the fact and many trades later.

in the pit
Hi, this is Eleanor Jones, marketing manager for ZoomSafer. Frossie, thanks for highlighting how technology like ZoomSafer's safe driving software can prevent tragic crashes by reducing mobile phone use while driving.

ZoomSafer prevents distracted driving by using your phone's GPS to detect when you're driving and automatically activating 'safe drive mode'. In 'safe drive mode', ZoomSafer locks your phone's keypad and screen so you can't text, email, or browse the web while driving - completely eliminating the need to look at your phone when your eyes should be on the road scanning for potential hazards.

The unfortunate situation detailed in the Men's Health article is one that's entirely too common - there were 6,000 deaths from distracted driving in 2008 alone. Visit www.zoomsafer.com to learn more about you can stay safely focused on the road.
Thanks for the feedback. Win XP has a different font renderer than Win 7 which is different than os x's. The fonts look best in win xp with cleartype enabled. We are going to be working on improving the font quality in XP in all modes.

It looks like you don't even have font smoothing enabled which. Enabling that will make a huge improvement cleartype or not.
Your statements are flawed. Yes we program on some platforms in certain languages because we are forced to do so (due to the inability of certain languages to operate within those bounds). However, if we restrict capable languages from platforms in which they would thrive, we are effectively blocking progress.

There was a time that assembler was the best language. If we restricted platforms to only asm, C would never exist. Where do you think computing would be today if Dennis Ritchie and Ken Thompson had shared your views and refused to challenge the de-facto standard of a platform?
Woody Norris did this 10 years ago using the same technology. I actually have one sitting beside me at my desk that I got back in 2001.

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

It's fun for practical jokes or making the neighbors think their house is haunted. I'm not sure how this guy is getting credit for this.
Exactly. Think of "computers" as becoming "workstations" and the future becomes clearer.
Were you doing the RAID using the card's drivers (BIOS softraid/fakeraid), or using regular software RAID?

It seems odd that the controller would drop drives like that, but I would never trust the "RAID" features of low-end interface cards ... they're barely competent at exposing the drives as bare block devices to the OS as it is.

I've had decent enough luck with the real hardware-RAID cards from Dell, but they are expensive and if I were building a new server today, given the price of CPU cores, I'm not sure it would be at all worth the cost and SPOF risk. I've never had a card fail but if it did, that would suck. Back in the SCSI/PentiumII era they were fairly nice though -- I have a PERC still running in a closet, doing RAID5 across 5 74GB SCSIs. Probably about time to pull the plug on it though ... those five drives probably burn through their replacement cost in electricity every few months.
Ask HN: Okay to post a link to a kickstarter?
I'm writing software for a 2.5 ton musical instrument that breathes fire. Like most large scale art projects, it is funded in part by grants, and in part through fundraising efforts. One of our fundraising efforts is through kickstarter.com, an all-or-nothing funding website for creative endeavors.

Would it be appropriate to post a link to our kickstarter on HN? The project definitely falls within HN guidelines, but I'm uncertain about posting a link that is soliciting contributions.
"Social media has overtaken pornography as the #1 web activity"

That one surprised me - I'd love to see some numbers. I've heard for ages now that the the porn industry is the leader in creating new internet technologies. Does that mean the social media companies will be the pioneers now? I can't tell if they are actually innovating or just trying to outdo each other.
Crazy, in this sense, perhaps equates more with 'irrational' than 'erratic'. In 08' Everyone basically knew why things were melting down (or had a narrative that fit the data) but people were pretty much dumbfounded at the massive move with little or no immediate cause.
and when you indicate prices with your fingers, palms in for bids or purchases, and palms out for sales or offers.

yes, people still do that by holding up the number of fingers of the price they want. yes, its archaic.

but frankly, the electronic markets tend to do really poorly in these situations. its hard to get a "real" 2-sided market in panics and all the liquidity is relly in the pits.
Sounds like a neat project. I wouldn't mind seeing a link to it.
Works well overall, but the damn toolbar is fixed width, so it gets clipped when the browser window is smaller than 1024 wide, which is lame.
psychological manipulation: Why Apple choose to give out EU/UK iPad price with tax while US price where without Tax? My guess is they wanted to avoid direct comparison of US price to EU/UK price. Why so? bcoz they are bumping up the price :-). All Apple fan boys, keep discussing if the prices are equivalent or not much different etc.
yeah, do it!
Wouah, that one was really awesome. And in full screen mode, it's as good as reading a real pdf. Awesome work scribd. Performance wise, Firefox seems to have a little bit of a hard time.
I use Nexenta (my ZFS build is described here: http://news.ycombinator.com/item?id=794640 and here: http://blog.barrkel.com/2009/03/zfssolaris-as-nas.html). The nice thing about Nexenta is that it's an Debian/Ubuntu-style userland (the default install is console only I think, but that's the way I like it).
Mmm, pie....

What kind?
>My clients were amazed by how much productivity they could squeeze out of their people in the downturn.

Overworking only works for a few months, after which people's health will start to suffer. All these managers are deluding themselves if they think this is going to keep on indefinitely. OTOH, if some people were underworked and they are just starting to pull their weight, that's another matter.
Android on iPhone 3G
I just use classes, so I'm not sure what you took my meaning to be. I'm certainly not requiring the singleton library.
We have a situation of 'haves' and 'have nots'. A corporation of 100 employees has every reason to prefer that those employees work at 120% (50 hrs/wk).

Our society would benefit if instead the corporation hired 20 additional employees, and everyone worked at 100%.
The worrying thing is this isn't the first time I've though about the irony of getting distracted from what I'm doing by reading an article on distraction.
I can't navigate with arrow keys
It's obviously a viral campaign for Hi-Tec.
Ask HN: Review my website - topytalk.com
If you aren't in the Twitter camp then you probably shouldn't care... Otherwise I'm eager to hear what you think about my twitter application for keeping up with the noise :)

http://topytalk.com
The App Store Spam Problem
Thanks for the tips! I never spent much time making XP look better, I mostly just turn off all the piss-me-off stuff the first day I run the machine, and forget it.

I'm glad it was a mixture of XP and PEBKAC causing the output to look bad. Like I hinted before, I am in complete support of your decision to move to HTML5, and I am tickled to see it look so good (on other people's screens ;).

EDIT: Wow, yes, ClearType smoothing really takes care of the font appearance.