skysight-inc/HackerNews huggingface dataset:
I think this article does a good job of illustrating why its so hard to have an open dialog on this subject.

Start with asking "What is front running."?
The market's definition would not include what HFT do. But bring this up to someone without knowledge of the public markets and their first reaction is to say, hey this is front running, it must be wrong. "Front Running" has a specific definition and it only relates to a broker and their own clients. You trading before me because you are faster is not front running. You understanding my flow is not front running.

You can then ask "What is public information". The fact that everyone can see any tape they pay money to see so there doesn't seem to be any one acting on "insider knowledge."

Now tell people that HFT's will use their fast machines to change their orders due to a change on one exchanges tape before the main NBBO tape is updated and some people will claim that this is obviously wrong.

The other argument I've seen made here is that trading on "insider knowledge is obviously wrong." Well it isn't obviously wrong and the entire commodities market assumes that anyone can trade legally on insider knowledge. Imagine you are the biggest producer of oranges. You know that you are going to have a bad crop so you but some orange futures so you can meet your demands. This is insider information you've traded on and its the way the market is intended to work.
I was discussing something similar with my brother past week. He works with real time data acquisition and analysis of large streams of data and he has a hard time finding hardware and software appropriate for his needs. He has to network with other people in his industry a lot, also with vendors in conferences and fairs. I though that is is a shame that there is no forum with people from other industries that deal with similar problems that they could share ideas, cooperate and evolve together. Very big companies have enough funds to invest in research centers and on basic research at the academic environment, but for the smaller companies and individuals it is very hard.
I can set it up for you on your *ix machine in an afternoon for $200 :)
CitusDB (PostgreSQL Column Store) vs. MonetDB TPC-H Shootout
The State of Car UI
If a couple joins a colonization movement and moves to the middle of nowhere, with limited chance to survive (make your time) outside the colony, in a land occupied by dangerous animals and savage heathens - say, New England in the early 1600s - would you consider the human rights of their children and grandchildren to be infringed? Isn't the difference just a matter of degree?

(n.b. actual savageness of heathens is left as an exercise to the risk-averse potential colonist)
I used cucumber in the same type of scenario (humans running tests) and it worked great. It works so well it's really tempting to try and use it everywhere, but there are definitely shortcomings when cucumber gets misapplied.
i'm actually doing the mentor role atm for a couple of people, but in one or two of the situations I can't really send them work home to do on their own.

So i'm taking the active role in the pair programming, and showing rather than having them doing. At least they will have the reference afterward.

gitbook looks like a pretty nice way to collect all that knowledge though.

http://www.gitbook.io
I have written a short blog post on how CitusDB's column store compares with purpose-built systems such as MonetDB. Repeatability ftw. Disclosure: I am part of the MonetDB development team.

CitusDB vs. MonetDB TPC-H Shootout
http://www.monetdb.org/content/citusdb-postgresql-column-sto...
Milano, Italy - UniCredit R&D

Hello everyone,
UniCredit R&D team is looking for talents for our big data and visual analytics team.

The office is located in Milano and we currently work with the latest technology (mainly Scala, JS (D3), Hadoop, Redis...).

Drop us a line if interested: uirnd@unicredit.eu
Been using DMS for years now (it was recently bought by Collective Idea). Love it so much that I'm on the testimonials page.

The reason we started using it is because it's hard to notice the absence of an email alerting you that job xyz is complete. E.g. when our nightly backup would complete, we'd get an email. We'd also get N other emails nightly emails about other tasks that would run.

On the rare occasion that e.g. backup wouldn't complete it would be really tough to notice that you didn't get the email.

What you really want is to hear nothing UNLESS something goes wrong, which DMS makes happen. Love love love it.
I'm partial to Foxy diva Jennifer Lopez wasn't baking my quiche.
168sdbet – AGEN BOLA TARUHAN ONLINE JUDI ONLINE AGEN TOGEL ONLINE
168sdbet adalah agen bola dan agen togel online menyediakan permainan taruhan online dan judi online SBOBET IBCBET. Daftarkan diri anda di agen togel online kami sekarang juga, Proses Deposit Cepat dan Aman, untuk lebih lanjut hubungin CS kami di www.168sdbet.com
The Telephone Tower in Stockholm circa 1890s
I think this is their way of monetizing that existing base: pay us money or the only dynamic DNS option your router supports will stop working. Most of the damn things don't let you run your own DDNS server either.
"There is only one real exchange rate – it’s called the mid-market rate"

Well no, there are two "real exchange rates" - how many X people will offer you for one Y, and how many Y people will offer you for one X. The mid-market rate is a fiction derived from these at which no one is transacting.
In this case it will just prompt you for for the recipient. This command is too verbose though. You can type:

gpg -e file

The output will be file.gpg. It will ask you for a recipient unless you have "default-recipient" or "default-recipient-selt" set in gpg.conf.
I'd def go for ROTATE-SIDE-DOWN PERSPECTIVE. Clear, concise and intuitive.
If I tell you that I know privately a piece of news about company XYZ that's about to become public tomorrow, and then you use that knowledge to trade based on how you know its shares will change, that's insider trading.

If I tell you that I know privately a piece of news about company XYZ that's about to be come public in 0.25 seconds and your machine is fast-enough to parse and react to this information before that deadline, that seems pretty close to insider-trading, it's just the "insider" is the exchange itself.
Interesting, I've never heard that criticism of NaCl before. I guess it makes some sense if you're engineering toward a "thin client" model with cheap, minimalist hardware.

The main concern about NaCl though, is that it's not portable, it's just Google's version of ActiveX.

So I guess he could have just said "great, now we can do what ActiveX could 10 years ago."
You will find the attitude almost everywhere you look. "If it is legal it is moral". Saying it's exclusively in the finance industry is absolutely delusional.
Bad UX for e-filing taxes
This weekend, like a good American, I filed my taxes. I decided to do it online, and it wasn't too bad; it only took about a half hour. I submitted and went on my merry way.

Immediately after, I got an email saying my filing had been rejected, with a somewhat cryptic error message:

Issue : Business Rule X0000-005 - The XML data has failed schema validation. cvc-complex-type.2.4.a. Invalid content was found starting with element 'EmployeeUSAddress'. One of '{"http://www.irs.gov/efile":ControlNumber, "http://www.irs.gov/efile":EmployeeName}' is expected.

The following information may help you determine the form at issue:
Field/Xpath: /efile:Return[1]/efile:ReturnData[1]/efile:IRSW2[1]/efile:EmployeeUSAddress[1]

I figured the server was having trouble and decided to try again later.

This morning, I decided to try again. I noticed a link from the site that said Fixing Your Rejection[1]. Clicking on it, I was greeted with a 38-page PDF that started with a description of how to search for my error message within the document.

I know that government systems aren't terribly sophisticated (unless they're tracking people's activity online that is) but I personally think it's ridiculous to expect anyone to know that this is expected behavior. Rather than type up their PDF, they should have put all this information into a database and used that to generate the email. If this were a company's site, the bounce rate would be tremendous.

Do you all think this is useable as-is, or that this is an unacceptable UX?

[1] http://www.irs.gov/PUP/efile/Fixing_Your_Rejection.pdf
reproduction rates are highly tied to culture, risk (high risk = more offsprings) and wealth. How that would look in the context of high tech space ships is rather unclear.
The number could be significantly higher, since genetics might not be the limit at all. The true question is how many people it takes to maintain the complete production line of our computers, from dirt and water to boards and chips.

Anybody interested in interstellar colonization topic (and in particular the question of how to get hundreds of thousands of colonists there) might also want to read "Neptune's Brood" by Charles Stross. The society and mechanics he describes are so far the most realistic I have ever seen.

Don't want to spoil anything, but according to him, the squishy biological stuff might not be up to the job.
People have to have different information or views on a market, otherwise no trade would take place except between gamblers.

This is wrong. The house is not a gambler.
One of the problems with this whole issue is that people are prone to looking at tl;dr's. Your comment assumes that front-running is occurring, which is not what's happening. Would you rather the debate go to: whether everyone should trade based on the SIP? But then:

- What happens when the SIP goes down? Should the US markets shut down?
- What is the motivation for innovation if everyone uses the SIP? One advantage of multiple markets is that they are also competing with each other to improve in terms of technology, and rates.
- Why is it better to trade in a world with less information?
You should read about Jeff Skilling's leadership 'survival of the fittest' outings at Enron.

I can't find any clear examples on the net, but you should watch The Smartest Guys in The Room.

Pretty sure there were lots of people that went with him on crazy corporate holidays.
In the digital space there is.

Comparing it to a McDonalds franchise make little sense IMO both in terms of what the investment is used for and the returns you stand to gain.

With regards to the inconvenience and price of not having HFT around. That again sounds like an issue for the traders not for the companies the stockmarket is supposed to help.
The trading pit that electronic trading replaced had far more potential information leakage. You can see which broker is demanding what. Also in order to get the "direct feed" you had to be an exchange member, or rent a seat from someone who was. What we have now is a far lower barrier to entry at the cost of all the existing players. And many of those players are mad.
> And you think it's morally wrong even if it leads to better functioning markets with lower costs and better prices for everyone else.

Citation?
Looks really cool but I'm slightly disappointed to see that when buying these Compute Modules in bulk they still each cost about the same as a single full Raspberry Pi (Version A). The Compute Modules do have 4gb of built in flash that the Version A doesn't have though.
Any questions or comments please let us know!
Batteries degrade with heat. Heat is generated by rapidly discharging or charging a battery.

This would destroy batteries - wouldn't suggest this at all unless you only want your battery to last a year.

Edit: Some resource - http://batteryuniversity.com/learn/article/ultra_fast_charge...
How many of the libraries do something sensible when given NaNs? I'd assume a nontrivial number give junk output (i.e. not even reliably NaN).
One of the core complaints about HFT regulation is that the regulators refuse to update their definitions to include HFT activities that follow the letter of the regulation but clearly violate the spirit of the regulation. Therefore arguing that HFT detractors are not relying on precise definitions does more to show that you're not really listening to their argument but rather just finding something to nitpick. It looks like an avoidance strategy, not an honest defense.
Replace investment finance industry with silicon valley and you would be just as correct.
Sincerely, I was expecting something like in Blade Runner [0]. It's quite easy to take "language" for something spoken.

[0] - http://www.imdb.com/title/tt0083658/quotes?item=qt1827458
Best/most innovative documentation?
Post the best/ most innovative documentation you have seen for a software project.
In my opinion it's too much "american" media and societys individualistic culture that has spread like a disease on the internet and kind of destroyed much of the original 90s internet culture. And thereby also the safehaven for the hacker people. The one place where many people felt at home has been stripped from them though this "capitalization" of the internet in my opinion. I loved playing around with the net before it got big. Remembering the times I played age of empires with random Chinese ppl and build websites with html where i uploaded my favorite games for people to download (had almost 1000 downloads at one of my sites!) or when I "hacked" games by alternating attributes in their config files and posted results on various forums... This was when the net was free and interesting today most of the landscape is dominated by commercials and Hollywood/media brainwashing.
I think our understanding of human rights has evolved since the 1600s. This is a very interesting ethical question.
I would think it would be similar to living during war times, in terms of restriction.
I'd also imagine that the kids would not really know better if they haven't tried anything else.
That doesn't conform very well to my understanding or experience. Citation?
One of the issues with that is you must have "the backbone" up and running before you can sign up any customers.

Many different projects have been centered around the idea of a "mesh" network and I don't know of any that have really been successful.
For those interested in further reading (ha), I can't recommend Nicholas Carr's The Shallows: What The Internet Is Doing To Our Brains enough. Just a profound meditation on technology's effect on humanity, particularly pertaining to our Google/internet era. Frankly, he's more skeptical about technology than I am, but I find his perspective genuinely useful for raising interesting questions that have changed my thinking.
Learning Web Technologies Can Be Easier Than You Think
A problem with the Heroku/pkgr approach to handling dependencies is that applications using this approach can never fully follow the advice provided under "Dependencies" in the 12-factor guidelines (http://12factor.net/dependencies), because some libraries are always outside the scope of RubyGems, pip, npm, or whatever language-specific package system the app is using. Heroku works around this problem, rather than dealing with it directly, by including a hodgepodge of packages in the Cedar base system. If you have a Heroku account, create an app, run a one-off shell process, and look at all the packages that are installed (e.g. by looking at /var/lib/dpkg/info/*.list). Or look at how Dokku and Flynn approximate this poorly defined base system by looking at https://github.com/progrium/cedarish. I suspect that pkgr will need to do the same.

EDIT: It's particularly ironic that the aformentioned section of the 12-factor guidelines says an app shouldn't assume the existence of commands like curl and the ImageMagick utilities, yet the Cedar base system includes both.

So it seems to me that containerization, with the whole container under the app developer's control (unlike on Heroku), is the only way to fully implement the 12-factor approach to dependencies. The downside is that the app developer is now responsible for the whole stack except for the kernel, including security-sensitive libraries such as OpenSSL. So I guess we'll need tools to help app developers keep up with changes in the lower layers of the stack. Another problem, for now, is that Docker isn't yet ready for production, and isn't even targeting more conservative distros like CentOS and Debian yet.
Test if a URL uses Node.js
> Routers are pretty cheap, and nice routers can cover half of a city block.

Proper ones aren't really cheap. And to cover a reasonably large area with a big number of users (and I suspect everyone and their dog has some WiFi-capable device nowadays, even in poorer countries) one needs a reasonably large quantities of routers.

Oh, and if that was the idea, I would really warn against trying to provide public connectivity this with commodity out-of-shelf consumer-grade routers. Prototypes work, but it doesn't scale well. My company (a small ISP) had tried and I'd say, in my personal opinion, we mostly failed (i.e., I mean, commodity routers are not fit for such job), even though our setup was much simpler than mesh as we had every router connected to a backbone.

Short summary of issues others should be aware of, when dealing with consumer-grade devices:

- First of all, QoS is a must - and it's a bit tricky to implement. Without QoS just 3-5 torrenting users will completely take the AP down. Getting QoS to work (and perform well) on cheap routers is hard, especially considering it's mostly done in software and their CPUs are slow.

- Another problem is, routers seem practically limited in number of active peers they can handle, and putting too much of them too nearby had its own issues due to signal interference. Not that this is unavoidable, but it may add some headache.

- And another issue is hardware supply. Imagine you polish a firmware so it works acceptably fine and consumers are satisfied. Next year, those routers go out of stock and you can't really get them anymore - only newer revisions or even models are available. A hardware change even between same model revisions could be drastic, so the development struggle never ends.
#1 New Paid App – Costs $4, 10,000 Downloads, 4.7 Rating... and is a Total Scam
A user should never have to search a pdf for an error message. Nor should they every see an error of this complexity. And yes, the IRS should be able to programatically find your error and email you directions, written in simple english, on how to fix your submission.
Dynastic wealth was earned by somebody

I get that, but that somebody is gone. The freedom that we allow each other in life to make what we will of our own labor is gone.

the US takes 40% of the really large ones

Do you think that the Kennedys lose 40% of their wealth every time one of them dies?

Hardly. That money is locked up in trusts and other tax avoidance vehicles so that very little is lost when a member of the family passes. The people losing large amounts due to inheritance taxes are the ones on the bubble who maybe have a few million dollars to pass on, but aren't steeped enough in wealth to be able to take advantage of the real loopholes in the system. As with most cases, those people in the upper middle are the ones who bear the brunt of being "rich" without the protections of being truly wealthy.

And I don't see why you think it's "harmful to the mobility of others".

The biggest threats to a thriving free, capitalistic society are monopolies and corruption. Big government, crony capitalism, corporate monopolies, massive military-industrial complexes, and dynastic wealth all contribute heavily to those core problems. They are so fundamentally powerful that they rewrite the rules(laws) of the society to protect themselves by stifling smaller players.

Dynastic wealth is power without the wisdom of having earned it. It's easy access to the force of government without really understanding how government impacts the capitalistic foundations of the society.

I sympathize with those who want to leave money to their children after they die, and I definitely think that you should be able to leave something to them - but the dark side of capitalism that is dynastic wealth should really be dealt with.
We may not be your main target, but international (Canada here) shipping would be great. There are alternatives, such as using a third party to forward the package, but with the weight the shipping costs get out of control.

I'm just waiting until a solution pops up, I do not want to buy elsewhere and I also do not want two mattresses.
Please don't. gifs are constrained by file size and usually 10-20 seconds or less. When you approach the minute range being able to navigate through rather than watching the whole thing again becomes valuable. Thankfully there's no sound, so at least there's no issue with volume levels.
The riddle of the Voynich Manuscript
Yes, when everyone already had phone lines in their homes and you could get any number of phone lines you wanted to any location you wanted to terminate the modem calls.

Nowadays you have to build out that "phone line" (a.k.a. "the last mile") to the customer which is sorta what this article talks about.
Citation for what?

A) that jellicle thinks it's morally wrong? He certainly seems to think that.

B) That costs have lowered? Spreads have dropped 10-20x in the last 10 years. Here's the CIO of Vanguard talking about how that's benefited everyone who buys one of their index funds:

http://www.cnbc.com/id/49434073
Reading this and the stories linked, it really makes me wonder how this can be legal, because it sure as hell isn't open or "not evil".

I'm really shocked that this is their business practice, because it's put me off ever developing for Android, as they could wipe out everything I use.

This needs to be challenged, as they are abusing their monopoly.
In what other context is using indications of a big buy or sell to bid up the price ahead of the big buyer or seller considered wrong? If my observation of Disney suggests they're going to buy up some land in a neighborhood to build a theme park, is it morally wrong for me to buy up the land and sell it at a higher price?
It would be really cool if they could figure out a way to adapt the fees of various operations to match their costs. Fixed fees will almost certainly not do this.

Imagine someone develops a chip that can calculate ECDSA operations 10 times faster, consuming 100 times less electricity. In a well-functioning market, the consequence of this would be that the price of ECDSA operations would drop, to reflect the fact that they now cost less to verify. With fixed fees, this isn't possible, and there is no financial incentive to optimize any given operation, without optimizing all operations simultaneously.
Powerbar Energy Drinks
What if I'm giving them $10 a month? $20? At what point have you as a customer "bought the right" to updates?
Your saying you should be able to front run the market because otherwise its unfair that I know what decision I'm going to make before you know what decision I'm going to make?
Anytime you act on information that isn't public whether it's a year or a second before it becomes public, your act is illegal. HFT's do NOT have such private information. Everyone has the same information.
You have a point regarding electricity - South Africa was having rolling blackouts a few years back, not sure what the state is now.

One thing to consider is that it might be easier to grow into a big fish in a small pond than in a big pond. I've seen people in small pond countries grow into big fish then move to a bigger pond with their big fish credentials. Whereas when a small fish moves from small pond to a big pond, with only small fish credentials, it becomes food, forever battling it's way nowhere. Not always, of course.