skysight-inc/HackerNews huggingface dataset:
I've never studied chess formally or played in a tournament, but my parents taught me the rules when I was 3, so I've picked up some of the basics and recreated things that look like the openings in the "moving past the basics course" over time, even if I don't know the official names for them.

The videos here are great. I've tried to pick up chess books and sites before a couple times, but I always very quickly feel like I need to memorize a few hundred board positions before anything will make sense (or worse, the "lessons" consist of nothing but THESE 3000 THINGS ARE GOOD, DO THEM). Putting things in a logical order for learning is very helpful.

I have to say, though, the exercises really need a better gradient of feedback, especially when you get to the later lessons with some more ambiguous positions. I only "solved" the "make your pieces happy" test by trying moves at random - I had correctly identified f5 as the target square, but I'm still unclear as to why it needs to be the left-hand knight that works its way over there. I know it would be a lot of work, but an after-action walkthrough of the solution and a couple wrong answers would be extremely helpful.
There was a collector in the Palo Alto area who had stashed up three large warehouses full of tanks. The warehouses were open as a museum until recently. He had acquired some of the tanks for just $5000 (time of purchase unknown) from liquidation sale of the former soviet military equipment. Transportation to the US had cost him $50-80K for each tank. Fortunately for you (and unfortunately for everyone else) the collection was going to be liquidated or moved. So if you feel like buying a tank you could get one in the Silicon Valley. http://www.yelp.com/biz/military-vehicle-technology-foundati...
Anyone into walking/climbing is probably used to metric for heights and distances as OS maps have been metric for ages.
David Chalmers is not a scientist. Is a philosopher, and quite a respectable one. Consciousness is a much older problem than the new age thingy. And definitely is much older than the pseudo-skeptic that knows better than scholars in a branch with a very long and wide tradition.
There are really two versions of A:

A1) Be assholes.

A2) Point out mistakes to share the benefit of your experience.

The problem is that people have a real hard time distinguishing between A1 and A2, and this drives a lot of people to say that we shouldn't even try for A2, and just try to build stuff so people can learn from our experience without the troublesome burden of communicating with us.
With the awesome exception of the Pagani Huayra:

http://www.pagani.com/huayra/partners/aspa.aspx

"Even the car's name tag positioned on the rear bumper, is carved in a 24 hour process from a solid block of aluminium. It is the Pagani way of reassuring its customers that their cars are built to their own standards exceeding the highest in the industry."
I vowed never ever to set foot in an RH store again after receiving one of these monstrosities.
As LukeB pointed out, you've reversed the meaning of the term.

I strongly recommend fixing this -- you really risk confusing the layperson and the debate.
The neurons in the IBM chip are only slightly better approximations to biological behavior, nowhere near close enough to hope that it will accidentally result in brain-like intelligence.

Last I heard, the behavior of biological neurons was so badly understood that even the behavior of the 300-neuron C. elegans worm could not be accurately simulated, even though the neuron connections have been fully determined. That was about 8 years ago, though.
If you do buy any of this kit you might want to read the novel "Red Army" and imagine what it might have been like fighting your way through NATO forces in West Germany in the 1980s:

http://en.wikipedia.org/wiki/Red_Army_%28novel%29
Machine learning is the goal. This chip should be judged on its learning performance, not on how well it adheres to an oversimplified and incomplete model of how biological neurons might work in the brain.
He is not either negative nor judgmental. He represents the top end of the field. His brother(who had adhd) died in a car accident. He is speaking soberly about a topic matter that is taken lightly.
Though I can't really comment on the discussion as a whole, I can say with good authority that if Zapier zaps fail (for any reason), we will try to send out alert emails to the best of our ability!
The LHC disagrees with you...

I pick a combination of (a) and (d). If someone does something dangerous and stupid we have to snap out of our predisposition to feel sorry for them. Ridicule is fine. As long as you then tell them how not to make the mistake again and why it was bad. When I blew up the fume cupboard at school due to a hydrogen gas explosion I didn't receive or deserve any sympathy but I apologised to those who were showered with glass :)

Option (d) which you missed is not to build them tools but teach them how the universe works and give them the knowledge of how to make their own tools.

Any fucker can stick an LED in arduino with a series resistor picked from a web form. However when someone gets the IV curve, the difference is remarkable.
Made the front page of reddit: 60x traffic, only 8x revenue
Last month one of my niche sites made it to the front page of reddit (in the TIL subreddit). Thought it was interesting that I got a huge influx of traffic (20k visitors), but only an additional $12 in ad revenue.

Lesson learned: Not all traffic is created equal!
'Spek'[0] is a nice free, lightweight, open source & cross platform Spectrum Analyser.

[0] http://spek.cc/
Deep Habits: Plan Your Week in Advance
So, you let a bird guard a fish?
Stream graph of online music listening history over the past 365 days by Artist
This paper says that if you can touch a simple bare wire to the chassis of a desktop computer, or even to the metal on an Ethernet, VGA, or USB cable connected to that computer, and then trigger RSA operations, you can extract RSA private keys from the computer, even against software that puts some effort into not leaking information in its computations.

This is an extremely cool paper (I'm not qualified to say how novel it is, though I can say that Eran Tromer is an important name in side channel cryptanalyis; the acoustic side channel against GPG builds in some ways off his earlier work).

Some things to look at:

* How the paper builds up from distinguishing a test case using electrical side channels, to distinguishing between different keys using those side channels, to attacking a single key operation, to attacking a single key adaptively.

* The (not particularly complicated) math involved in selecting chosen RSA ciphertexts to target GPG's multiplication code and amplify the side channel.

* The way the adaptive attack (where you bounce repeated and different ciphertexts off the target and learn from each "experiment" to select the next one) builds from the simpler attack.

If the electrical mechanics of how they actually captured the signal are interesting to you, something like the last third of the paper goes into detail, including the part numbers of the equipment they used to capture and process the signals.

I'd like to get someone on my team working on reproducing some of this work. Which is usually the sign of a well-written paper. :)
Is there a chance the APC could be made road-legal in the United States?
To play devil's advocate, what if the impact of a teacher inspired a student who eventually came up with a billon-dollar idea?
It's currently a mixture of automated and manual effort. That's what we mean by "experimenting".

The goal is to automate as much as we can, not to eliminate bias—I doubt that's possible, or even well-defined—but to eliminate work.
Now THAT makes sense to me. I can picture being on a team using those units to build a house.
> On one level I agree with you however I think that the barn door is open and the horses are heading for the treeline.

The horses are on fire.

Agree entirely though.
On a related note, what about hardware? Remote controllable light dimmers, for example. I've been browsing around, but all the options seem to be terribly locked up: "here's our custom switch, here's our custom control box, there's our custom software for the control box, here's our custom phone app, use them together or not at all". Are there any solutions on market that are more hacker-friendly? A switch with documented bluetooth/wifi interface? Or maybe just something that exposes couple digital IO pins and tasks you with getting the correct signal there?
To paraphrase Bill Gates, measuring wealth production by hours of work is like measuring aircraft building progress by weight.

The "production per hour" metric gets more and more meaningless and deceitful for more and more jobs, mostly for the most productive ones. Obsessively measuring $/hours misleads us into thinking that spending more hours will get us more $, which is false for most jobs which actually creates significant amounts of wealth.

I've automated away dozens to hundreds of menial jobs (hard to count): what sense is there in comparing my one-shot engineering hours to those of the technicians I've definitely made redundant? Each of my hours will have saved thousands of technician hours over the years: does that make me and my time worth thousands of time more than them?

> we still have to work some hours

Some of us have to work some hours, but there are more and more poeple whose hours simply can't be converted into wealth. And that's good news, not a tragedy, because we don't _need_ those working hours. What we need is a way to distribute wealth complementary to, and less obsolete than, salary.
Would be nice if one of the many downvoters would explain how working in the hundreds of centimeters is easier...?
From a different article - To match the earlier settlement, the latest deal "would need to total at least $380 million," Koh wrote. That is disturbing a judge suggesting an amount. The original case called for 3 billion. The attorneys did not take it to court because of the triple damages clause in US Law. Also what is the Sept 10 next meeting supposed to decide.
I've used atom since it was open sourced and really like many of the features it offers. But there is an issue with the mouse cursor disappearing when hitting the ALT key described here https://github.com/atom/atom/issues/2122 and the launch problem https://github.com/atom/atom/issues/3190

I've never used a .desktop file for atom and had no problems launching it until a recent update from the master repo. Guess I'll try installing the PPA package to see if that works.
Man I love Clojure. So happy to see it on the front page these past few days.
You're right. Working on an edit now.
Wouldn't this make political polling pointless?
No need to play devil's advocate, just look at Finland.

http://www.smithsonianmag.com/innovation/why-are-finlands-sc...
But everybody benefits from functioning shipping lanes. After all, if shipping shuts down how will we keep wallmart stocket, no matter whose flag those ships sail under.
Actually, I can remember at least one commonly used alternative name from my time in a German-speaking country. The term "Pfund" (literally, pound) was frequently used to refer to a half-kilogram. I remember it being particularly used in reference to a loaf of bread, by both bakers and customers. (That was a long time ago, don't know if it's still common.)
It's very baffling. I purchased one item from them 5 years ago and got the 17 pound stack the other month. I believe it went straight into the recycling bin.
Scent Trunk Startup Is Changing The Way Men Buy Cologne
Everything Good Correlates (the clustering of sexually desirable traits)
https://ifttt.com/sms

Send a text message to an IFTT (If This, Then That) number with #migraine as the message body. Append the date and time as a new row to a Google Drive spreadsheet.
I don't think it's really an equivalent tool.
As I understood, the main point is the real-time analysis of the microphone input. Spek seems to only analyze a « static » sound file (same for SoX and Audacity if I'm correct).
Also because using the metric system you simply take shorthands. 1 inch? About 2.4 cm as far as anyone cares in a casual sense. A meter is about the length of your shoulder to your hand, or a slightly stretch stride. It's actually easier for me to eyeball a centimeter then an inch because I see and use the centimeter all the time.

The idea that the units themselves matter is absurd - when you're eyeballing it, you're eyeballing it.
Made using Windows prog last.fm Extra Stats - http://www.last.fm/user/C26000/journal/2006/07/30/383m_last....

via @shaggorama - In case anyone is looking for tutorials to make this type of graphic on their own, this style of graphic is called a stream graph . Here are some demos:
D3 - http://bl.ocks.org/mbostock/4060954
Protovis - http://mbostock.github.io/protovis/ex/stream.html
Processing - https://github.com/leebyron/streamgraph_generator
Python - http://code.activestate.com/recipes/576633-stacked-graphs-us...
Mattermark Is Seeking Full Stack and Front End Developers
No. Model-building relies on a given set of assumptions that may or may not be true. Once you've agreed to a set of assumptions, the data becomes meaningful within the framework. The framework can be bent and shaped as the assumptions evolve.

If we can assume that on average, a random set of people who are randomly asked about a political topic is a reflection of the population of a whole, we can start to draw meaningful conclusions about the political topic.

The OP article points to the concept of spurious correlation [1] which is a danger if you have very little domain expertise in the data that you're working with. e.g. If your regression shows US GDP is statistically significantly affected by Bangladesh butter production, you may want to discuss the results with domain experts about why the result may or may not be spurious.

[1] http://en.wikipedia.org/wiki/Spurious_correlation
Haha what? No one using the metric system uses "stone" for body weight. They use kilos.

Even the US doesn't use "stone" - you use pounds, which is your stand-in for the kilogram.

EDIT: Seriously, I cannot think of a single country which uses "stone" for bodyweight. Maybe the British? But doctors don't, definitely not in Australia, and I've never heard anyone from any other places use it either.
who uses stones for body weight?
It's a horribly short-sighted viewpoint to not take into account the effect teachers (are supposed to) have on whole new generations of people! Teachers raise people who may get billion-dollar ideas in the future, and should be paid accordingly.
> Would you care to share why you think capitalism would prevent an increase in leisure time

It's actually a quite simple mechanism - people who would want to work 3 days will get replaced by people willing to work 4 days, which will get replaced to work one day more, etc. As long as people actually need jobs to survive, the end result is they work as much as possible within bounds of law. We sometimes forget about it, because IT industry is in it's golden age, with more jobs than suitable candidates. But look at non-specialized jobs like retail, and you'll find everyone working Monday-Saturday in shitty conditions for low pay. They'd be working Monday-Sunday, were it not the long fight against capitalism for leisure time.

Capitalism optimizes for profit, not for human values. Those are becoming increasingly separated nowdays.
when you videotape, video that day's newspaper to establish dates
That implies about $1-2/CPM. Which is not an unusual value.

20k visitors for the front page of Reddit sounds low, though. I've hit the front page (with http://www.reddit.com/r/dataisbeautiful/comments/2ac8ba/who_... , also a default subreddit) and I received 150k visitors.
Slightly related: the adult business is being rejected by Google play and the app store. I think some big co should sell a modified android phone (like telcos do) with a preinstalled adult app store. Plus it could work for other adult materials such as strong-language comedies and such.
Thanks! This reminded me to look up the area I'm visiting today and see what I could do. Turns out there was a big old lake missing, so signed up and added it. Easy and fun!
> Even the terrible stuff can inform language models for understanding the good stuff.

The terrible stuff may be used for cutting and scratching. If you scratch the vinyl, it adds character.
PatchNRide – Fix your bicycle flat in less than 60 seconds
They should, but they aren't and this is the reality.

Capitalism sucks at valuing things that don't give immediate profit. Education is such a thing - it has extreme ROI... 20 years down the line. Which is too long a time and it gets valued less than small changes that will bring in a little bit of money next month.
Aerospace is the origin of the insanity which is modern pipe thread specifications. The metric version is still in inches, but whatever 1/8" means, the pipe it goes in no obvious dimension represents that size.

Like, I know there is a system and calculations behind it, but they are in no way friendly to any user.
(replying to the wish for a name for 2.4m; edited out): Why for the 2.4m, but not the 1.8m or the 3.6m? Surely it makes just as much sense to refer to it as the "two point four" as anything else?
Even though I'm an ex-physicist where nearly everything was done in metric, I'm decidedly anti-metric. Most of the metric system has no empathy for the everyday life of humans and is better suited for making scientific equations easier. It is roughly the equivalent of choosing esperanto for consistency.
Ask HN: Any founders have a place to rent on airbnb?
My team and I are coming up to SF next Thursday through Sunday and want to stay with some people in the startup community. We're 3 guys driving up from SoCal.

P.S. We're not looking for a freebie :) how can we find you on airbnb?
No, I'm learning OCaml, although I've gone through the normal introductory Haskell material and liked it.

The catch in your approach is that it doesn't really offer an incentive for people to learn Haskell other than "it's really good, believe me". The best incentive I know of is to demonstrate that people are solving the problems that the potential Haskeller wants to solve, and that there are tools, resources, and even sample code available.

Just a little while ago there was a goddamn GIF encoder in JavaScript on the HN frontpage. There was a text editor in Go. Does anyone really need that stuff? Probably not. But the visibility of people solving so many familiar problems in these languages gives newcomers the impression that JavaScript/Go/whatever are powerful, popular languages suitable for a broad array of tasks.

Seeing that kind of thing -- that the Haskell community does more than write language parsers and terse implementations of interesting algorithms -- is what's going to convince a newcomer that it's worth the investment to start from scratch on a new, unfamiliar language. At that point they're going to be happy to learn about typeclasses and functors and monoids as stepping stones to the cool stuff they want to do (and in the process, maybe learn that they're more than stepping stones).
We’re tackling aging
Hackers Unveil Their Plan to Change Email
I don't distinguish between a group of people colluding to beat someone up, and colluding to subvert the market by suppressing wages. I think it's entirely arbitrary to say that the state should use violence to prevent one kind of harmful activity and not the other.
Stop writing custom code
What LeCun is missing is that the IBM chip was designed to be ultra low power (63mW to do pattern recognition on a real time video). One of the novel techniques this chip uses to achieve low power is to use spikes to send information between neurons.

It is not clear how LeCun would propose to send information in his convolutional neural networks in specialized hardware (from what I can tell, he uses FPGAs which are very high power in comparison). In the worst case, that approach sends data between neurons on each time step, which is very inefficient in power. If they do something more clever, I would bet it would start to like sending spikes.

It also seems very short sighted to say that if the hardware is not specifically designed for convolutional neural networks, then it is not the right architecture. It seems like the IBM chip does support convolutional networks, but it might require a few extra time steps to average.

Biology has evolved to use spikes (across many different species). Perhaps evolution didn't get the memo that non-spiking convolutional neural networks is the only architecture worth building. Maybe it will take a few more thousand generations before evolution catches up, but until then spiking neuron architectures seem like a decent gambit ...
"fishes" refers to multiple species of fish, while "fish" is the correct plural form of a school of a single species.
The site looks great!
What's the goal of the tactics? I've passed one but couldn't figure out why I "won". Is it just supposed to make me learn what a good move would be in a random situation?
If it's the case it's fine, but I think it should be better explained.
Who Made That Twitter Bird?
Show HN: Sticky Notes Chrome App for self learners
Oops, I'm sorry for the edit. You & I had the same thought: singling out 2.4 was just muddying things.

Calling the unit the "2.4" sounds great. But that doesn't sound very metric to me...
150k wow! Maybe the subreddit subscribers perform differently, or I wasn't on the front for that long. It did have over 1800 votes though
The Mirror Man: Treating Phantom Limb Pain With a Simple Technology
Here's the monthly report that has my detailed numbers, if you're curious: http://www.sideprojectprofit.com/july-2014-profit-report/
I wrote "Correlated: Surprising Connections Between Seemingly Unrelated Things" (http://www.correlated.org), and one of the things I run into a lot when promoting the book is the "correlation doesn't imply causation" line.

Obviously, the statistics I present in the book and on the website are tongue-in-cheek, but I like to take issue with that line, because typically, people don't fully understand what it means. I use a variation of the line in the OP's post -- that "nothing other than correlation implies causation."
Which makes no difference because you're eyeballing it to start with. You can just as easily divide the 0-100 range in half a bunch of times. Your thermometer is not achieving <1 degree accuracy.

Of course if you have a tool to accurately measure halves, then you can also measure any other division you care to use.
I don't care to post this, but meta begets meta...

Your (and tptacek's) meta comments seem unhelpful and clearly favor HN's status quo.

I've successfully demanded a shorter workweek from capitalist bosses, and helped coworkers fight theirs. And that comment you both meta-criticize is pretty sensible, in my view. If you're going to hack a system, it's worth getting familiar with the subversive lit.

(Though their last paragraph may indicate a lack of familiarity with that subversive lit. Because politicians will naturally fight/coopt revolutionary changes to the system they administrate. Post-capitalism is a revolutionary change, and a capitalist state would attempt to respond violently. But whatever.)
Things Job Ads Say
As a guy with a chem degree, I prefer Metric in the lab, and Imperial (US) in the kitchen or workshop. It isn't really that hard to shift gears/units for your task.

Even better is when you learn to cook or build without measurement, just transferring sizes directly. See James Krenov on building a cabinet.
> "you can't even represent 0.1 in IEEE floating point"

Not true, the IEEE 754-2008 standard provides a Decimal Floating Point specification in binary.

http://en.wikipedia.org/wiki/Decimal_floating_point#IEEE_754...
LibHoare – pre- and postconditions in Rust