skysight-inc/HackerNews huggingface dataset:
I was just talking about empathy. I thought stripping one of his degree for made up data is a bit too harsh. I'm not for dishonesty, just for some empathy.
The article reminded me of all the buzz surrounding the Segway. There was so much buzz, in fact, people had a heyday trying to figure out what it was. Most thought it was some kind of personal flying device - which led to long discussions about the implications and roadblocks such a device would encounter. Which is very similar to having packages delivered via drones.

In the end, the Segway hardly lived up to all the hype. I mean, Bezo's himself was quoted as saying, "Cities will be built around these devices." Which should give you a good idea of how masterful he's at over hyping certain things. I now take most of his announcements with a pound of salt, considering his colorful history.
Sure, but that's what upvoting is supposed to determine, not the headline renaming conventions.
Which exchange/site do you use?
Outside of traffic, cars are dramatically more efficient than public transportation for each individual. It is only as a whole (note that traffic comment) that the efficiency breaks down.

I can't take a bus from my driveway to my work. Nor does the path a bus take usually end up being the most direct one.
I'm sure the average consumer wouldn't take that seriously -- however, this is not meant for the average consumer. This letter is definitely trying to appeal to business IT managers, and they sure love Gartner's magic quadrants. (They also enjoy whitepapers about best practices for implementing thin enterprise BYOD methodologies.)
Yes, this story, at worst a pie-in-the-sky project of one company, that will fade into the background in a week, this is the thing we should be skeptical about.

The consequences if I did "believe the hype" are terrible, I'm sure, although I can't think of a single one right now.
Bitcoin Can't Be a Better Dollar If It's a Newer Tulip
China Launches ‘Jade Rabbit’ Rover To Moon
90% is probably good enough for Amazon package delivery. The other 10% they send out another one. The cost of this is included in the fast-delivery surcharge. Unique and living products are not eligible for air delivery.
a/b? Don't think so....??
What's the dividing line between commentary and starting a discussion with a primary reference? I've come to really disagree with the strict title rule. IMO, HN should be more of a community for sharing ideas than a simple link aggregator. Someone submits a link because they found something interesting about it and wanted to share. They should be granted some agency to frame the discussion.

The rule just seems overly bureaucratic and inflexible. Often the link is appropriately titled and the content speaks for itself, but not always. An original title arguably has just as much potential to negatively impact discussion as a badly editorialized title. For a Wikipedia article - why was it submitted? For a link titled simply "Jolla," how is that even remotely useful? What the hell is that and why should I click it? For a normal article, maybe there was a particular angle or interesting small bit of it to highlight. Enforcing the creation of your own "wrapper" blog post also smells of unnecessary bureaucratic overhead. Why is it better to trade a "privileged position at the top of the page" for a privileged position at the URL of the link itself, that is now misdirecting from the actual piece (aka blogspam)?

I can see the downside, for example a popular article where multiple people attempt to put their own spin on it, fragmenting and confusing the discussion. But this happens already, how many different threads introducing Amazon Prime Air were there yesterday? Eventually the community settles on the preferred one and the rest die out. It's a trade-off, and would take some subjective tweaking and moderating (which is already necessary anyway), but I think discussions could be substantially improved by allowing the submitter the chance to "start things off on the right foot," when appropriate.
> CmdrTaco

> some people were relying on him to have an informed opinion

hahahaha.... Seriously though, his job was to stoke pageviews, not be correct. Slashdot didn't get big because Rob was a prophetic genius or a talented reporter.
"every time you call a function, its vars get allocated on the stack."

That's 'may get allocated'.

Also, even if you compile with -OnegativeInfinity, your 'another fun way' won't do what you think it does on architectures that store return addresses and locals on the same stack (= most CPUs that mortals will program) or that grow the stack 'up' (rare)
I'm saying that there is no reason for to be as noteworthy as it is right now. As Bezos himself says,

“this is early, this is still years away.”[1]

Yes, 30 minute drone delivery would be big news. That Amazon is in the very early stages of an R&D project to look at the feasibility of it is not. In any case, I am staking an early bet that you'll have your Amazon products delivered by a self driving van before you'll have a drone do it - especially if you live anywhere outside of a major metropolitan area.

[1] http://techland.time.com/2013/12/01/amazon-bezos-drones/#ixz...
Shows a blank page for me or a "Whoops, something went wrong!".
Limit order books need to need to be very very quick as they usually live in exchanges and process a lot of orders. I've written a few limit order books, I found it difficult to beat this approach.

Deal with prices as an int not a float. This important as the price can then form the key of a hash table. Size of the hash table should be the limits of price in your book (including decimal places you support). This seems like a lot of memory, however the structures we're dealing with are small. Insertion into the book is then largely O(1) as few people bid/offers are exactly the same price.

Bid and offer can share the same hash table as they will be at opposite ends of the table (apart from orders that cross).

We can preallocate all active orders and form a link list of nodes inside the order book. Never allocate any memory on the fly as it is very expensive.

Order
{
Order *next;
int price;
int size;
int side;
}

This will allow fast insertion/removal and will keep a lot of the data in the level 2 cache. Of course you need to keep the list big enough to support all active orders.

Processing an order would involve working out if it's a buy or sell, then hashing the price, if a value exists at that key you fill the order (or partial fill).

Finally use taskset or something similar to make sure the OS puts your process on a dedicated hardware thread.
It isn't impossible but users have to wait arbitrarily large amounts of time in order to withdraw - some people report waiting for months.
The limits of online video?
I read that Android support in BB10 is not so great.

Most of Android components are open sourced. There are versions of Android which strips out Google stuff. For example Facebook released their phone which runs on Android. There is even alternative OS (sailfish) with similar architecture, which runs Android apps just fine.

The problem is that BlackBerry tries to be manufacturer. They do everything by themselves. Instead they should focus on services and existing standards.
Great. I bought a copy and will be following along on your progress. I'll be sure to use issues and pull requests for any other suggestions/fixes I might stumble across.
I'm glad to hear that! I find the story inspirational myself, and look to the great innovators like the Wright brothers, Jeff Bezos and of course Elon Musk as role models for looking at the big picture
> Its author, New York Times religion correspondent Mark Oppenheimer concedes that “(s)tudying music or dance over a long time teaches perseverance and can build self-confidence” and “that there is virtue in mastering difficult disciplines.”

This could be said of programming too

About classical music, because a coincidence, I've downloaded lots of classical music and found out that it helps me greatly to concentrate while I'm studying.

I like it, I would probably want to learn more about it (if and when I have time), but I dont want to become an expert and be pedantic about it.
I'm upvoting all of these comments because irony is cheaper than advice.
Pee Could Power Future Robots
If you want to understand the drama around the doxing of the site's owner and how it led him to run check out Gwern's comment here: http://www.reddit.com/r/SilkRoad/comments/1ptd6b/precommitme...
People have said they're nearly insolvent. They're also being sued I think. So, withdrawing USD from Mt. Gox you're screwed... I waited 3 months and gave, up, converted my dollars into bitcoin and sold it elsewhere.
I can hear your crying from here
Curious about the performance hits you're experiencing, feel free to reach out to me directly.
Now that I have a huge stash of bit coins I was thinking of making a service/startup where you could lend out your bit coins to people who would agree to pay you back a slightly higher number of coins in the future. Kind of like a bank but not corrupt and full of banksters like the federal reserve and JP Morgan. Once I have traction I can IPO but instead of sell my shares for cash I would sell them in bit coins.

I think it would have some kind of restful API.
SnydeRyder: awesome tips. Thank you.
No. That's a misconception as old as the site. Upvoting is one of the sorting mechanisms on HN, but if it was the only one, we'd all be looking at memes and cat pictures all day. From the jump, HN has used both voting and site guidelines that dictate what is & isn't on topic.

The headline renaming drama has been rehashed ad nauseam in the past few months. I submit that the healthiest way to view it is that nobody but the site's admins have a real appreciation for what a tedious chore it is to correct the often abusive breakage in submission titles, and so maybe it's a good idea to cut them a great deal more slack.
My biggest motivation, now nearing three years without missing a day writing usually 500 to 2,000 words daily, which applies to exercise and a million other habits you don't want to lose, is

If you miss one day you can miss two, if you miss two it's all over.

(which I wrote up here -- http://joshuaspodek.com/a-model-for-consistency)

Words to live by if you want consistency and discipline in your life.

I'm also coming up on two years without missing a single day of exercising, for which the same philosophy motivates me -- http://joshuaspodek.com/burpees-the-one-year-review

EDIT: Another lesson I learned: That the route to quality generally comes from quantity -- http://joshuaspodek.com/route-quality-quantity.
The Peacock Problem - Part II
Agree with the adjacent post that this is a complementary feature request and I also really want it. There is a browser plugin that can sort of get you there, but it's pretty brittle.
"...when I search for something I look for information..."

The problem is, to paraphrase someone I generally disagree with, not in what you know that you don't know, but rather in what you don't know that you don't know.

To look for information, you have to know it exists; you're less likely to know to look for something if it never impinges on your bubble.
Isn't the root of this problem false dichotomies? The real reason you don't get synthethesis from two opposing views is that there are omitted variables at play, that typically increase the complexity of the solution.
Are you working on re-upping it? I would like to see.
MDM - Mobile Device Management

BYOD - Bring Your Own Device

BES - BlackBerry Enterprise... Something?
But so do Apple and they are wildly successful. BlackBerry's security model relies on integration of the OS with the hardware in such a way that they'd need to rewrite the Android kernel anyway to keep the same benefits.
This is huge from an academic standpoint, and I sincerely hope this sort of mind-expanding recommendation will enter the mainstream. Here is a off-the-top-of-my-head list of some introductory thoughts:

- I'd be willing to bet that people won't react well to this sort of thing popping up in their existing news feeds without their explicit permission. For instance, I'd love to see Facebook or Twitter introduce this as a ranking signal, but I can't see that resulting in meaningful discussion without some careful tuning.

- This being hacker news, the first thing that comes to mind is "let's found a startup that does this." I'd seriously love to see this turn into a product of some sort. It would face something of an uphill struggle for adoption, but it might not be so bad. One major feature of the "ideal customer" is already lined out: interest in or willingness to tolerate dissenting opinions. Synthesis of opposing views into a new one correlates strongly with education, so that's a group you can reasonably target. College students are into this sort of stuff, so you could go after them. Personally, I think this has potential as a space.

- Gathering existing data for this sort of thing could be difficult. Access to significant amount of social network data is a must, especially if you will want to perform clustering-type analysis. My hunch is that there may be a way to make this happen without a large quantity of data, but nothing obvious or market-tested comes to mind.
Poll: Have you ever written an article that made it to the front page of HN?
I was curious about how much of the content on HN comes from HN users directly.
Yes: once
Yes: 2-3 times
Yes: 4-6 times
Yes: more than 6 times
The Year In Bing Searches
> re-implemented in Go

Conversely, this enables a host of features (e.g cross-compiling) unavailable or disabled were you to link against C-land using cgo.
Arguably WWII was won due to the information provided by a spy, Sorge[1]. His timely info to Stalin informing him that the Japanese would not invade Russia allowed Stalin to pull most of his eastern armies back to Moscow. Combined with the Russian winter, the sudden influx of new troops halted and reversed the German advance. This was only possible because the Soviet policy makers understood the __intent__ of the Japanese government. That knowledge was provided by a spy.

The purpose of a spy is not to "defeat the enemy", but rather to provide the leadership apparatus with a clear understanding of the capabilities and intents of the other actors in the game. (This is the theory anyway). Usually this is referred to as "reducing uncertainty". The intelligence agencies collect raw information, process it (e.g. determine its veracity, probability for accuracy, etc.) and combine it with existing knowledge to produce "product"... the intelligence output that provides the political leadership with the "best estimate" of what the other actors are capable of doing, and what they plan on doing. (capability and intent).

The author appears to have confused SIGINT, HUMINT and covert action (and also doesn't seem to have a clear idea on how spies actually operate). SIGINT is considered particularly useful because it is not subject to the whims, calculations and forgetfulness of a human agent. HUMINT is much more useful in the long run, and this is something that the Russians knew from at least the days of the Okhrana. The Russians wrote the book on HUMINT and have forgotten more about it than the West will ever know. (See "Technophilic Hubris and Espionage Styles During the Cold War" [2])

[1] http://en.wikipedia.org/wiki/Richard_Sorge

[2] http://www.jstor.org/stable/pdfplus/10.1086/653104.pdf
Comments in code is a start. URLs to documentation in comments is better.
I think this is a way to reach their target audience and I think it just might make sense. Think of it as them going to their roots. You are not their target audience.
Why was my title edited?

It said "How reddit tried to solve the "new link" problem/ why HN doesn't need a new algo"

How is this new title an improvement? I would at least expect a comment here when a title is edited as to why so I can learn for next time.
You can hit most of a medium-sized metro area from a 10-mile radius. NYC and cities like it are exceptional; most metros have an abundance of single-family homes with porches and backyards, even just a mile or so from the central business district.

Amazon would not need a full-fledged distribution center as a drone base. Orders received by, say, 10am could be put on a truck from a distribution center that's an hour or two's drive from the center of the metro area. The truck goes to the drone base in the middle of town and unloads. You can still deliver before 5pm.
Cool, this sounds like a fast approach. The implementation I wrote is very much not optimized at all. I wanted it to be correct-ish and easy to understand.
Technically counter-espionage, but I always think of http://en.wikipedia.org/wiki/Operation_Mincemeat

Edit: Probably SIGINT, not HUMINT, but I'll leave the link for other people's reading pleasure.

In any case, one that would definitely be HUMINT- I recall some Axis pilot defected to the Allies, giving the Allies information about a new plane. I don't remember what plane- our first Zero was recovered from a crash, maybe it was a Messerschmidt?
Looks nice, would like to see cavirtex exchange.
This would open up the possibility of shorting Bitcoins. Could get big.
Amazon Prime Air: 5 Predictions About the Retailer’s Delivery Drones
Turning our Side-Project into a Full-Time Job
I assume they would start to have distributed micro ware houses (shipping containers, dry vans) that are launching points for drones or dudes on scooters. I feel sorry for minimart.

Also, if serious, they should buy 7-11. I still don't understand why Blockbuster wasn't scooped up like hot cakes. All those juicy retail locations.
Classical music is alive and well. It's also evolving, as it should. You might find it camouflaged as sountracks. Witness the "views" numbers on Youtube of "Inception" or any "epic music", they're in the millions.
Based on the research I've made it is legal by the OO principles and SHOULD work but it got omitted somehow in the trade-off during the implementation.

Also NOT available in java.lang.
Android is a race to the bottom for everyone who isn't Google (controls the software side) or Samsung (fabs the key silicon).
Richard Sorge. He (arguably) won WWII.

http://en.wikipedia.org/wiki/Richard_Sorge
The original (as linked above):

http://www.jamiebgall.co.uk/the-peacock-problem/4581216632

A response from someone on Twitter:

http://therationaliser.blogspot.co.uk/2013/12/the-peacock-pr...

A follow-up from the original author:

https://news.ycombinator.com/item?id=6835021
This is awesome. Where can I donate?
This is exciting but a little too early for its time. Four months early to be specific.
Yes, as long as there isn't a crane, net, tilted lamppost, kite, human, dog, or any other unplanned obstacle.

Come on, people. Being able to draw a trajectory isn't the same as moving a physical object through space. And moving a drone to a predetermined GPS location in ideal conditions while you are watching it and when you know there is nothing around has nothing to do with day-to-day deliveries using drones.
They most certainly were not! They were written for CIO's and the like.

For the record:

MDM - Mobile Device Management - a thing to integrate management of a companies cell phones

BES - BlackBerry Enterprise Server - the MDM made by BlackBerry

BYOD - Bring Your Own Device - The practice of employees using personal cell phones for company business. The company deploys some set of apps and services onto the device which allows them some measure of control over it, and the employee gets to use a mobile device that they are comfortable with.
Contributing to an unfamiliar project is like buying a gift for a stranger: they might appreciate the sentiment, but your effort will most likely be wasted.

I recommend contributing to projects you already use. That way you'll have a better idea of what specific features or issues you should work on. Also, you'll be more likely to succeed, since you'll be motivated out of self-interest as well as general goodwill toward the community.
https://btcjam.com/ ??
Why would anyone want to borrow money in a deflationary currency (Bitcoins) rather than an inflationary one (dollars)?
Looks good! X and Y axes with price/time ticks would be really useful...
Cppquiz – Figure what a given C++ program does
Show HN: What I learnt by launching my weekend-project.
FutureJS, a new JavaScript conference: May 1-3 2014 Barcelona
Future of programming,40 years ago by Bret Victor
They are done. They STILL have no clue they aren't the center of the universe. Who knows (or cares) what this sentence means:

"We’re serious about multi-platform MDM and even more serious about multi-platform EMM"
I would agree that's a part of it, but the idea that someone hasn't yet discovered a variable that bears impact on an issue is a far less crucial one than the ability of one's mind to disregard a salient factor as irrelevant.

Without the ability to think critically of an idea that one is endeared to though, none of that matters at all. Meanwhile, the ability to be challenged allows one to accept more variables as relevant than previously.
I did $4 up front, justified in my mind for "effort", and then I'll be doing the same as you (giving after if it's useful).
Over the long term, you're going to be happier here if you avoid terms like "dick stroking" and "dry humping". I don't agree with your comment but found it mostly coherent and helpful. But you sabotaged it in a failed attempt to make it sound lively that just made you sound shrill.
The original (as linked above):

http://www.jamiebgall.co.uk/the-peacock-problem/4581216632

Submitted and discussed: https://news.ycombinator.com/item?id=6832988

A response from someone on Twitter:

http://therationaliser.blogspot.co.uk/2013/12/the-peacock-pr...

This submission is a follow-up from the original author.
Of course it does, in part thanks to the moderation and flamewar detector. Read this thread, especially PG's comments. https://news.ycombinator.com/item?id=6596038
Go Binary Sizes Are Growing out of Control
Optimization - Run away from lions in a cage - Mathematics Stack Exchange
Are you sure? Self driving cars have to deal with human drivers, cyclists and pedestrians - none of which are in the sky at the same numbers. They also can't communicate intelligently with those in the ways that drones could intelligently avoid collisions by being in constant contact with everything near them. Self driving cars are constrained to roads while drones may be able to fly in different areas. Drones can fly up and down too, so there won't be any traffic jams - they can be avoided even easier since every vehicle can be in communication with each other.

For what it's worth I think your solution is likely better, but not in every conceivable way. There are real benefits of taking self-driving cars and giving them 3 dimensions and no human obstacles.
Fed Up With Bitcoin? Here's How To Start Your Own Currency
Keep in mind, the public relations aspect of this product is as much in development as the technology itself.

Is this a PR stunt? Yes and no. On one hand it's a PR stunt in that it teases people with pie-in-the-sky products that don't exist yet.

On the other hand, this is a completely new product built on completely new technology that most people don't have any experience with. Releasing this sort of stuff is delicate because people need to be acclimated to the existence of the technology before they can be comfortable with it. This release is the very first step in that process. As the project matures, I predict they will lead the launch with a great deal of public-relations-type announcements like this.
What's to stop people from just running off with your loan? Would you require some sort of tie-in to real-world identity?
You can do something similar to this on Bitfinex right now, though it's specifically lending for margin trading. Also has the option to lend USD, which I have done, and had quite a nice return.

Worth checking out while doing research.
Really, Microsoft?

Google does Zietgeist http://www.google.com/zeitgeist/2012/#the-world

And you do this crap? Way to level-up in the game!