skysight-inc/HackerNews huggingface dataset:
John Wanamaker (1838 to 1922), an early operator of department stores and a pioneer of some of today's principles of advertising, is credited with the saying, "Half the money I spend on advertising is wasted. The trouble is, I don't know which half." There is a huge business opportunity in further refinements in measuring the success or failure of advertising efforts.

http://www.economist.com/node/7138905

Part of the difficulty in measuring success or failure of advertising efforts, of course, is that different businesses gain different forms of utility from successful advertising, with some businesses structured to gain from almost any increase in reputation, and others depending on prompting direct contacts with salespersons, and others desiring to increase direct, in-store customer visits. Each business client of an advertising campaign in a free enterprise economy should be allowed to define "success" in a way that is meaningful to that business, and each thoughtfully managed business will shop around for the advertising provider that best delivers success meaningful to the client.

And of course providers of advertising compete with one another by offering reasonable targeting solutions at reasonable cost. From the submitted article: "Their first idea was to target the friends of people who already liked Pizza Delicious on Facebook. But that wound up targeting 74 percent of people in New Orleans on Facebook — 224,000 people. They needed something narrower." The clear implication here is that the restaurant could have reached the same huge number of people living in New Orleans through some other channel for less money.
Then link to one to think works differently.
Anybody else wonder whether the email from the random customer mentioning the advertising campaign platform was actually from someone working in Facebook's ad sales department?
2.75% with MasterCard, Visa and Diners Club.
3.75% with AMEX

without a card reader its 1.5 SEK + 3.5%
If you like to drink beer or smoke cigarettes in a public park, for example. Or smoke weed.
Rotating Web Page Elements Using The CSS3 Rotate Transform
With CSS3, you can rotate Web page elements by a specified number of degrees, clockwise or anti-clockwise. With a small amount of HTML and JavaScript code in conjunction with CSS declarations, you can also animate these rotations. In this tutorial we will work through the process of rotating an image element by varying amounts as well as animating the function, initiating the rotation on user interaction with the page.
I don't like his statistics so much:

Ruby - Saving 34% (6,613 keystrokes)
PHP - Saving 52% (105,250 keystrokes)

Those percentages are not the most helpful. They represent a relationship between the positive delta and the negative delta, rather than a savings for the project (which I feel is the first implication in a percentage saved).
Would this help?

https://github.com/schacon/git-scribe

Edit: Actually the project looks dead, so I'm not sure you'd want to use it.
I think any CEO who parades himself around his campus in an iPhone 'funeral' right after it's launched DEFINITELY deserves the worst CEO award.
Buy Me Hot Chocolate - Dwolla’s Buy Button
Primark
En compraropa.es descubre en montón de novedades en moda y tendencias. Todo lo que se lleva esta temporada y que no te puedes perder, además de un muchas ideas y consejos para conseguir el look perfecto además, de la información más actualizada relacionada con el mundo de la moda.
Excellent. You may wish to mention that the default Rails.cache is a per-process cache and doesn't work between instances / goes away at process death.

For Memcache users, configure Rails.cache to use Rails' built in :memcache_store:

http://api.rubyonrails.org/classes/ActiveSupport/Cache/MemCa...

For Redis fans, try :redis_store:

https://github.com/jodosha/redis-store

This covers Rails 3 caching pretty well:

http://broadcastingadam.com/2011/05/advanced_caching_in_rail...

Note for Rails 2: If I recall correctly, in Rails 2 fragment caching/action caching still uses the filesystem even if you have a cache_store set.
I wonder this every time a light goes out and I see people carefully and considerately coordinating to take turns at an intersection. But I really think if that weren't a special case that got everyone's attention, the result would be more collisions.
Except that Android's first release was a beta and SDK, almost a full year before phones shipped.

From that, it's not remotely clear whether saving 2 days to beta would have even resulted in 2 days of savings in the creation of any device.

To say nothing of whether Google/TMobile/HTC pre-selected a launch date in advance for the Dream, in which case they easily may have squandered a handful of days waiting for their desired PR timing.
Nvidia poised to change gaming with cloud graphics chips
Just add a zebra crossing.
I posted some comments below laying out the reasons why I don't like this. I got heavily downvoted and the majority opinion is clearly against me, saying essentially that he is a great teacher with the white hat for teaching everyone not to believe what they read on the internet. I guess I ought to gracefully admit defeat and bow out to oblivion.

Still, I cannot resist making one final farewell appeal. Consider carefully the near future, when prof. Kelly will have produced a flood of busy graduates, all experts at disinformation. What is the likely outcome of his program if it succeeds? It is not that hard to guess. You will get what you applaud: you will no longer be able to trust anything you read, ever. You seem to consider this to be of some great educational value but I must admit that the value escapes me.

Let me extrapolate one step further. What is the point of reading anything if it is all likely to be false? Exactly. Stop reading and sit on your dumb asses watching TV.
It's not ironic at all. One would expect that authors using a particular keyboard layout would tend to favor characters that are easy to type. In that way, it's the opposite of irony. The outcome is exactly what we'd expect.
Новини. Житомирский «шанхай» или Взгляд на Житний рынок сверху: Житомир
From a user interface perspective, paging has one great benefit. It provides structure, especially to long texts with no images or layout cues. Think of it as an extended version of the paragraph: a tool of composition that gives readers subtle navigation cues within a text.

If paging means more load time, bad results in search or the like, that's obviously a bad thing.
Your logic is lacking. The car in that clip is driving without the least regard to reasonable behaviour and the law. He was not stopped be the presence of traffic lights. Are you suggesting that he would be less not stopped by the absence of traffic lights?

Or as the article puts it:

"You can't even legislate for maniacs, so why hobble the vast majority with "one size fits all" rules devised to catch the hypothetical deviant?"
If by everyone he means anyone who's reached a point in their application where it's worth adding code and complexity in order to improve performance, then yes this is useful (and I use it often).

http://c2.com/cgi/wiki?PrematureOptimization
So what it it's 17 years old? I read it, but it's not contextless, nor is it dry. It has plenty of context - albieit in an older form - the creating of a word processor. You can still grasp this today! In fact, the information on Factory patterns is still used today, same with Singletons and a raft of other items - including Prototypes, which is what Javascript uses.

Please note that I didn't say that I'd provide it to a newbie coder. I merely pointed out that it's not an "antiquated tome". It's very definitely useful, and has been so for some time and remains that way. In fact, I actually think that Zed nailed it on many points in that article.

I find it very interesting that my comment was downvoted merely because someone disagreed. There was nothing inflammatory about my response, nor was there anything factually incorrect. I offered a differing opinion, of which someone decided they would hit the downvote button, instead of doing what they should do - post a response.
You can't turn two knobs at once in a live performance with a mouse.
Aye, I was going on the assumption that people were using memcached/redis. I'll add a little section in case anyone wasn't sure about that bit :)
From the article:

Pick a project in an area that you don’t have much background knowledge or experience in or one that requires a different stack of technologies from what you are familiar with. Use a different kind of database (eg: try a project using a graph database like Neo4j) or a different library/framework or even better, use a completely different language. It will not only make you a better engineer, it might just help you understand and improve your core work in different and better ways.

I think this is a lesson that is critical when trying to get better at anything, programming or otherwise. While researching an alternative to the documentation authoring tool we were using at work, I stumbled upon their training videos, and I have to admit, there were a lot of eye openers on how we could change the way we use the current software. This happens simply because different people have different methodologies, so following tutorials for one language, software, tool, can lead to realizations that apply to all of them in varying degrees.
We Rewrote Our Entire Application in PHP Before Launch
Can we finally kill blogs like this?

Any one and everyone is free to do as he or she likes, use adverts on their own site or not. Tim Moody should start his own video service sans any adverts.

What does he propose, a legislation or a movement to stop sites from using ads?
WordPress SEO Hacks: A Cheat Sheet for Getting More Traffic
Ask HN: What grammatical tense should I use when I commit to a repo?
Added functionality x to service y?
Adding "?
Adds "?
Will add "?
Replica Mulberry Bags
I wrote "please ask for ID" instead of signing. In 4 years, I was asked to show An ID exactly on once.
> If you want to say otherwise, you'll have to take issue with that argument.

Meta is death. Some meta discussion can be interesting and lead to useful discussion, but in general meta discussion sucks.

Imagine a content free meme-spew post.

Either it gets downvoted by the community (down vote ability appears after 500, maybe 750, maybe higher karma), and the poster knows what they did wrong.

Or it gets downvoted and the baffled new user asks why, and someone then posts "TINR; but here's our guidelines so that's why you got the downvotes". I'd suggest that the TINR in this case is useless, and the rest of the post is of dubious value. If a person is unable to grok the style of HN from the faqs and existing posts without someone having to handhold them then maybe they need to lurk more. But at least it's welcoming and helping people become productive. Notice that this is a tiny subset of TINR posts.

Imagine the content-free post gets a TINR comment before it gets a downvote. It antagonises other communities, it adds no value to the thread, it makes people think that TINR posts are acceptable, it clutters threads, it encourages meta-discussion, etc.
Investing inherently involves risk. Assuming there's nothing fraudulent in FB'S filing documents what would investors sue over?
BMWi Phone - 15 Years on an AA battery
Someone, I suspect the same person, has been downvoting all the folks who don't find GoF and k&r and who are willing to say it.

I think this is wrong. If you don't agree, please post a response. Don't hit the downvote button. These are valid comments, and while you might not agree they certainly add to the discussion.
"iZettle is neither memorable, nor makes any sense"

YMMV - I thinks it's both memorable and makes sense (sounds like "I settle"). Also, I've never seen a Square device so their domain isn't memorable to me!
Teaching students about being careful about sources -- online or not -- is good of course. But he should just have shared a paper about or something like that.

I agree with Wales; deliberately putting untruths on Wikipedia is really anti-social behavior. Wikipedia, however imperfect, is a really great asset -- people using it for their own little experiments like this is really doing everyone a great disservice, and I can only imagine how many others he has inspired to do similar things.
I use Colemak and occasionally one-handed Dvorak (when I'm having RSI issues in one hand or the other), but my keys are laid out QWERTY. Move the keys, and touch typing becomes much more difficult because you lose your "homing bumps" at the f and j positions. Also, learning a new layout is easiest with a diagram floating on the screen, not by trying to look through your fingers at the keyboard.
Why is there no clojure framework on this list?
Startup Founders Desperately Need Great Stories: Here’s Why | 21times
I've been planning something along these lines for PHP, but PHP in and of itself has plenty of learning resources. That's not to say they're any good, per se.

The focus thus shifts on to correcting the many mistakes these other learning resources make. That might be poor security (SQL injection, XSS, etc.), use of deprecated functions (mysql_* functions), and maintaining your website as an unholy tangle of intermingled HTML, CSS, JS and PHP. This is what I'm more interested in doing.

I don't personally see much value in writing about much else (like, idiomatic PHP), because the language itself lacks an opinion on what good code and bad code is, or whether it should be procedural or OOP (see DateTime and mysqli for examples where there is an interface for both styles). Trying to establish a 'norm' for these things would be nothing less than Sisyphean in nature.

Compare this to Python and Ruby, where these books flourish because the language itself makes it easier to write about.
"The fatal flaw at the heart of the system is priority. [...]
The unseen spanner in the works is the idea of main road priority."

He fiddles a bit with a story about a woman and a pram, but doesn't actually address why this is a bad idea. While access and crossings can be improved in places, letting traffic flow fast and freely on main roads seems like a fundamentally good idea to me?
Why I Throw Epic-Level Shindigs
Reminds me a little bit of VVVVVV (thelettervsixtim.es).
My American sister pays with a chip-and-pinless credit card when she visits the UK. She has to swipe and sign, but I've never seen anyone ask for ID.
With a degustation you'll probably have quite a few courses. 9, 10 maybe more. Maybe matching wines.

If you are just fine dining you will get larger portions but will still go starter, entree, main course, dessert.

The portions are small because you cannot eat that much. The prices are high because at a good restaurant they are serving food that is hard to make and they do it well.

A lot of fine food can be very rich. So I am not sure about not ingesting too many calories. Perhaps relative to eating an entire pizza on my own. But not to eating a regular balanced meal.
MySocialVenture – Turning Ideas Into Startups
Thought you might say that!

But you never know - despite the substantial improvement, 14 days might not be your sweetest spot.
By that metric just about every millionaire, and most every founder or cofounder billionaire, is an idiot. (Or was when they invested the time and energy to be where they are today.)
I'm not sitting through 4 or more rounds of interviews with recruiters, senior recruiters, recruiter managers, technical recruiters, senior technical recruiters, technical recruiter managers, to finally reach the person capable of making a decision.

And exactly how can a recruiter brag about the company "gourmet" cafeteria (I'll pass on getting food poisoning from another gourmet cafeteria again), but doesn't know if the company provides the equipment?

It's they don't know, or more accurately won't disclose, then I'm just hanging up. And I'm sure I'm not the only one.
Ask HN: music for hackers?
Hi, I have a simple question: what is your music? What is the music of hackers?
it depends: some tiles are updated very frequently for visualization. My experience is that it is no more than a hour or so to see the changes live. Therefore if somebody pulls from OSM, it will get the new version.
TL;DR Don't blame the ad platform if you don't know how to market your business and measure your efforts
Traffic lights in its current form will be obsolete by the time AI / computers start driving all our vehicles.
I disagree with your opinion on why folks are worried about this. There are many folks who are scared off unnecessarily by the sheer arrogance of those who say that they shouldn't code.

However, whoever is downvoting opinions that they don't like - will they cut it out? Seriously, I'd love to know who downvotes because I've noticed a lot of it is unjust. If you notice, there are a lot of considered responses to this considered reply. The debate has continued - trying to censor the opinion of others is pretty horrendous IMO.
He's 11. Something happened rather suddenly right around the time of his birthday. He went from not the slightest bit interested in how the computer worked to wanting to code. It's fun!
While that's true; If you look at how the surplus of productivity generated by technology was distributed among the members of the society in the last 30 years, you will notice that, maybe, she was right.

Who got benefited from the increase in productivity I generated with the automation I made? The owners of the company.
The Pitfalls of Naming Classes
Agreed. Though I will admit to often prematurely optimising as I quite enjoy performance tweaking :)
While the costs may go down and people's premiums will likely go down commensurately, accidents will still happen. So most people will carry insurance for that purpose. And besides, do you really think the insurance companies are going to let the state governments make casualty car insurance not required? Or do you think the car loan companies will really drop requiring comprehensive coverage as a requirement? I think not.
Google: Adweek’s “share wall” is a bug, not a feature
so basically doing things that are against the local laws
I work at a marketing agency and I wholeheartedly agree with everything on this list. While some people will read the article and think "advertising on Facebook is a bad investment," the real takeaway should be "advertising anywhere will be a bad investment if you have no clue about marketing."

And as a side note -- thank you for mentioning social proof. I'm constantly stunned at just how often this powerful concept is ignored or disregarded in marketing!
I'm curious now what context his programming comes in. His bio doesn't really show any pre-law career: law degree 1971, law clerk 1971-72, private attorney 1972-78, assistant in the Solicitor General's office 1978-80, private attorney 1980-99, judge 1999-present. So it must've come in the context of his law career somewhere (some kind of DIY automation?), unless it's a hobby.
Road Maintenance
Slurry tech has mentioned all the Health and Safety Objectives for microsurfacing, road construction and preventive maintenance for achieving the ZERO ACCIDENT LEVEL.
Darpa program to power instant language translation
Apple patent spats finally pay off
Yes, the theatre mentioned in the article opts to go with Ticketmaster for all their ticket sales, so the band couldn't sell their own tickets.
I'd be fairly surprised if there was even a single metric on which Paris beats Berlin for anything business related

Like Paris having the biggest business center in Europe?

http://en.wikipedia.org/wiki/La_D%C3%A9fense
See http://www.zug.com/pranks/credit/ -- very funny!
The "Best" of the Worst Diablo III Anger
No it hasn't. I'm a very happily married man who uses Facebook to talk to friends I haven't seen in a while. I have no interest whatsoever in romance (of other people than my wife!).
I have a smartphone that is 3.5 years old already, and it's still getting the latest OS updates. It wasn't even sold as a developer phone either. I'll leave it to the reader to guess what phone it is.

No matter how you spin it, Android OS updates are one big pile of fail, even if you buy a Nexus device.
Windows 8 Lets Parents Track Kids' Internet Use
Tesla, best inventor ever.
Yea, I'm pretty much a pure systems engineer. I'm working on teaching my self some code but it's not going to get me out of there. It's rough... I'm close though. Hopefully in a few weeks life will change.
Electric contractors Burlington
Contact Crown Electric for electric contractors in Etobicoke and the surrounding area. We are Burlington electric contractors who can meet your needs.
Full time employee of the company? Yes, W2 not 1099 (sorry for the confusion)

Job contract? The company hold the contract with the government. Every contract has varying lengths comprised of yearly renewable options.

$5K chairs, right. Citation needed.
Zomer: maak je huid gezond klaar voor de zon | Leef Nu Gezonder
This thread has piqued my interest, does anyone know of further reading I could to learn more about advertising strategies for local, small businesses?
Juggling Robot Takes on Two Balls With One Very Fast Hand
Well, it crashed my browser consistently everytime I openened the page (Safari 5.0.4 on Windows), so it sure lives up to flash in that department :-(
Here in Ireland credit cards about very commonly accepted in many shops, supermarkets and restaurants.
Still think this project needs to be rebranded "Googley-Eyes".
A few responses:

> 1. They target people who like Italian food. They don't target people who like Pizza. 15,440 people in New Orleans have liked Pizza on Facebook.

There are literally thousands of pizza places. Pizza Delicious isn't just a pizza place. It fills a niche that's closer to "Italian Food" than to just pizza.

> 3. They disregard targeting friends of people who already like Pizza Delicious. And by doing so - they don't use the most powerful feature Facebook has to offer: social proof.

No they didn't. From the article: "Their first idea was to target the friends of people who already liked Pizza Delicious on Facebook. But that wound up targeting 74 percent of people in New Orleans on Facebook — 224,000 people. They needed something narrower."

> 5. There is no benefit in Liking Pizza Delicious on Facebook. No special Facebook offers. Or discount coupons. And yet they were expecting people to like their page and come visit their place right away. Their call to action is weak. You can't expect facebook likes to convert into orders straight away - when you don't even ask for an order.

Their goal was to increase sales, not increase likes on facebook. They considered the likes on facebook to be a metric, and it turned out to be useless by itself.
And then the other party doesn't think you've read the message and wonders why. That's a fairly fatal flaw in your scheme :-)
I'm a CIS major about to enter my junior year, I still have the same problem that many of codeacademy's students do. I've done a couple of programming classes (which I aced) and dozens of tutorials but I don't have a clue where to begin when it comes to actually designing a useful program.
> Checking the signature was the norm in the UK before chip-and-PIN.

Yeah, I think it was in the UK they wanted me to sign the card, since I hadn't done it already. This was before chip-and-PIN. Oh well...
Are you aware of a recent case where an institutional investor representing "dumb" money (e.g. Pension funds) was successfully sued for bad investments? I am not.