skysight-inc/HackerNews huggingface dataset:
My interpretation is that it will convert DataFrames to normal data.frames when necessary. Unfortunately, this removes the performance efficiency of Spark.

Since currently SparkR only supports aggregation, it limits the usability of SparkR slightly. Future versions will apparently have MLib support which should alleviate that.
TIS-100: A programming puzzle game using a fictional assembly language
I was a bit apprehensive to post this as it has a very personal story of complete failure. But given how valuable it was for myself I figured I owed the rest of HN. Love to hear feedback of what resonated or did not so I can improve. Thanks!
That's great to hear! I also had some trouble finding the gist of currying. As you said, the _why_ is often missing in the explanations. Glad I could help you in that regard.
->I'm not even all that keen on the bright oversaturated aesthetic
thats right
How feasible would it be to simulate non-automatic vehicles with the models you've provided? My hypothesis is that humans, too, could implement the proposed steering behaviors (albeit likely with some degree of imperfection) and thus could feasibly implement some or all of the proposed flocking strategy, but I wouldn't know where to begin with testing things like blind spots and slower reaction times.

At the very least, I reckon the "yield to higher-priority traffic", "maintain distance from other vehicles", "maintain distance from road boundaries", and "drive forward" behaviors to be (relatively) easy for human drivers to implement, seeing as they do these things already (albeit with lanes as visual reference points), and do so even better with modern driving assistance technologies like blind spot indicators. Dynamic adjustment to asymmetric load would be harder, but I suspect even this could be feasible.
He does say "I'd rather see that money spent on intelligence and investigation". And I think it's evident from his other writings that "intelligence and investigation" refer to focused and targeted efforts, rather than dragenet surveillance.
People forget that Digg was already on the decline when it released v4. v4 was a bold attempt at trying to reinvent the site with the trends of the time. It failed and Reddit stayed the course and became a phenomenon.
I wrote BASIC in VAX assembly as a freshman. It compiled each line to byte-code (like Atari BASIC), and used a hand-written recursive descent parser. I remember using the VAX SKIP and SPAN instructions when dealing with strings.

Sadly my only record of it was a fading fan-fold listing which is now gone.

Looking at the presentation: I really should have learned LISP earlier than I did..
Oculus not bothering means they're just part of why it's not happening.

Valve on the other hand seems to fully embrace OSX/Linux (with both Steam and the Vive) and have done plenty to improve gaming on those platforms.

I think I know which HMD I'll be purchasing.
They're not shipping until Q1 2016? With all that funding? They're going to miss the 2015 holiday season? Zuckerberg needs to kick some ass over there.

[1] https://www.oculus.com/en-us/blog/first-look-at-the-rift-shi...
If the overarching goal is to create a "safe space" and one of the tenets of that safety is "i do not have to be exposed to opinions and actions that offend me" then the slope is well greased.

I'm not saying that is explicitly the case for reddit, but there are a number of internet communities who work from that definition.
Wikipedia's donation banners last year were more intrusive than paid ads on a lot of sites.
The problem is that Go implements a half-arsed way of dependency management (go get) and enforces things like GOPATH that clash with community created solutions.
Good observations. Questions to ask about them:

Can you be successful without acquiring some form of power, and can you receive that power and not work to retain it? In other words, how inevitable is the process that affected the extreme socialism of the early USSR and the extreme libertarianism of the early internet?

If this was triggered by the recent incidents at reddit, are they really relating to commercial / advertising pressure, or are they an attempt to use the power that the controllers of reddit have gained, towards what they see as worthwhile ends?
http://www.bloomberg.com/graphics/2015-paul-ford-what-is-cod...

> You know what, though? Cobol has a great data-description language. If you spend a lot of time formatting dates and currency, and so forth, it’s got you. (If you’re curious, search for “Cobol Picture clause.”)

https://www.google.com/search?q=%E2%80%9CCobol+Picture+claus...

What am I supposed to be looking at here?
To really feel the difference you have to work on complex logic.

It's easy to be under illusion that you can create everything using a verbose language. At some point the complex system you work on just gets extremely hard to reason about.

For verbose languages you reach this point considerably faster.
I agree that humans would have a hard time with dealing with oncoming traffic. The rest of this, though, sounds hardly different from what human drivers already do; they're expected to maintain a safe distance from other cars, yield to emergency vehicles, drive in the correct direction, and not drive off the side of the road.
Yeah but will you still focus to infinity while you're trying to read text? That's the main thing with VR for desktop use - reading text.
Resolution is the main concern. Is oculus detailed enough to do programming on a virtual monitor?
The most memorable Game of Thrones characters, according to MIT
7BN is like 250K for each public school in the US
Check out MemSQL's Community Edition for this very use case. We shipped MemSQL with an open-source multi-threaded, bi-directional connector to Spark.

The DB has two storage engines: in-memory row tables, and on-disk column tables for efficient compression and permanent retention. Then, it becomes an easy task of INSERT/SELECT...FROM to move data from memory to disk very quickly.
Pretty interesting (and sadly not surprising).
It does but this is because you can't easily wear glasses under the devkit.
Super idea for a side project! Thanks!
Is there a documentation of transport protocol? i.e http sse, websocket? ...peeking the source code a little bit - tcp-socket?
> Engaging in such an inherently dangerous activity inevitably causes a lot of incidents draining those resources.

I've done rescue work in Alaska for most of the last ten years, and I've followed rescue-related issues fairly well for a long time. Elite athletes like Dean and Graham do not drain rescue resources. The bulk of rescue work centers around ordinary people who get into situations where they find themselves over their heads.

By the time people like Dean and Graham need help, they've typically already helped a good number of people because they have the skills to do so. Their contribution to the pool of rescue resources is a net positive.
Compared to many blue collar jobs, that's the case. By the numbers, it's about twice as dangerous as being a car mechanic and significantly less so than being a construction worker. Further, most deaths of police officers on duty aren't from violence.
Couldn't you just correctively blur the display or something?
5 Tools to Permanently Set Process Priority in Windows
Nobody does, but up until now the reddit admins have been very supportive of the idea that they are a home for any content that isn't illegal. Former CEO of reddit, Yishan Wong: "We stand for free speech. This means we are not going to ban distasteful subreddits. We will not ban legal content even if we find it odious or if we personally condemn it." http://www.bbc.co.uk/news/technology-19975375

This is an obvious departure from this ideal.
Your are right and it is being corrected.
GitHub updated its header
Have you tried Coverity Desktop analysis? It'll let you run Coverity on your code incrementally(for only code changes), assuming you already have a baseline.
Hell why not just use something the same thing glovers use. http://i.ytimg.com/vi/xxAghmBb6zQ/maxresdefault.jpg

Just use IR LEDs instead of colored.
Twitter's Dick Costolo to step down as CEO on July 1 [pdf]
Any data on the SDE of the new display?

I'm really excited about VR, have a DK2 and am really impressed with the experiences available already. But, I've found it very hard to use for long periods of time (more than 20-30 minutes) as my eyes eventually focus on the screen door and I can't seem to break that without taking some time away from it.
OK, we would all like that, but if you are this personality type, trying to do push the boundaries of human flight, then you don't really consider that. You find the best place to do it and go for it. Sometimes the law is an ass.

If Dean had sat on his couch and ate himself into a 240kg shut-in, it would be legal, no-one would be commenting and objecting to the cost to society. I would like more Deans and less of the shut-ins. I think it's good for humanity. I think it's a shame when we denounce one and accept the other.
Twitter Initiates CEO Transition [pdf]
The damage is to the serenity enjoyed by the people hiking or horseback riding, not the trail itself.
Thank you! "Accessible" is precisely what I wanted the post feel like.

Sly seems very cool too, I hope it will help popularizing these ideas!
Only place I've seen that had an actual bottle-fill station was Copenhagen airport in Denmark. But in many ways that airport felt like it was 10 years ahead.
From the article:

"The TSA is failing to defend us against the threat of terrorism. The only reason they've been able to get away with the scam for so long is that there isn't much of a threat of terrorism to defend against... Terrorists are much rarer than we think, and launching a terrorist plot is much more difficult than we think. I understand this conclusion is counterintuitive, and contrary to the fearmongering we hear every day from our political leaders. But it's what the data shows."

You're much more likely to get killed on the car ride to the airport than at the airport.
Twitter CEO Dick Costolo is stepping down July 1
That never stopped you regarding generics!
This Is Your Brain on Discounts
Twitter CEO Dick Costolo is leaving the company
I was trying to want to build a simple kind-of normal non-blog website also. Thanks for the tip on Middleman.
Are you sure? I'm running Firefox 38.0.5 and Chromium 40.0.2214.91 through normal channels (ie, not nightly builds...) and they are both NOT vulnerable.
How do other professions demonstrate competence in interviewing?
All the recent discussion of interviewing practices got me wondering how other professions that require deep skills test the competence of applicants in an interview process? Are doctors required to diagnose something? Do architects have to solve a design problem or interpret a drawing? Or are these steps rendered redundant by things like state boards and licenses? Would like to hear from other professionals who have had to "white board" what they can do in order to get to the next stage of an application process.
It is well established, but plagued by issues relating to centralisation - exit scammers, law enforcement infiltrating markets, people stealing bitcoins. Each time this happens, growth is damped as buyers and sellers shuffle over to new operators. OpenBazaar would revolutionize this.
Twitter’s CEO Dick Costolo Is Stepping Down
Dick Costolo to Step Down as Twitter CEO [pdf]
Wouldn't focusing on infinity be a problem for people who are myopic? I imagine everything would be blurred, and I don't think glasses would be wearable together with the VR gear.
Twitter CEO Dick Costolo Will Step Down on July 1. Jack Dorsey Intermin CEO
This should be a yawn for those with web and mobile dev experience, people I'd expect to already understand virtual machines and fractured encodings.
Microsoft owns a couple of % of Facebook.
It will be interesting to watch this relationship as Microsoft's HoloLens develops.
Twitter CEO Costolo to step down
We're talking specifically about tritium. Under normal circumstances, there's maybe 4 kilograms on the Earth's surface. The nuclear tests increased that by multiple orders of magnitude, ejecting hundreds of kilograms into the stratosphere, whereupon it promptly precipitated back out into the earth's oceans.

1) Your link does not discuss tritium. Tritium is a specific substance with specific characteristics; you can't just lump it all under "Evil Radiation" and make meaningful conclusions.

2) Whatever effect tritium would have would be global. You talk about local extinctions, but we're actually looking for evidence of massive global extinctions. The early 1960s (which saw peak tritium levels) are not known for a huge spike in inexplicable extinction events.

3) Not only did the tests spread it everywhere, but ongoing runoff means that rivers have been pumping tritium into delta regions. Almost a kilogram of tritium was pumped into the Gulf of Mexico over the last 50 years. Again, no impacts from the tritium have been detected; whatever impact it might have had was drowned out by all the other much more serious crap we humans were doing.

4) Again, there's still no theory as to how tritium (specifically tritium, and not, eg, radioactive cesium or iodine) might do all this crazy stuff. I'm just pointing out that there's also no emperical evidence either, and thus, no real reason to think our entire understanding of how radiation impacts living organisms is wrong.

All of which means that people worried about the impacts of 4 grams of tritium on the Pacific Ocean are—to be charitable—innumerate. They're certainly wrong, because we've already dumped something like a HUNDRED THOUSAND TIMES more tritium into the Pacific ocean than that, and we literally have been unable to detect any impact. It's absurd to think we could even measure the impact of 4 grams.
I can assure we've spent far more time thinking about generics than about vendoring.
I've had a ton of success with O-1s for founders and key hires for early stage companies; it's definitely not a "genius" visa. I sometimes refer to it as a founder's visa. It's even easier that you've secured angel funding.

Shoot me your contact information, and we'll find out within 15 minutes whether it's worth a shot.
Jack is back™
> what it is his company does

The company sells products. The website with a shopping cart is not the primary purpose of the company.

The company may in fact sell automobiles.
We'll update the readme. Overlooked in the push to release. The docs on InfluxDB.com should be accurate
Fun article. Even to this day sometimes I look at the software we have all built and wonder:

> It’s amazing any of it works at all.
$150 House
"it's like a self-hosted firebase"

Basically, yes. see the subscribe() function.
http://en.wikipedia.org/wiki/List_of_gaps_in_Interstate_High...

In any case, typical interstate highways certainly have numerous interchanges, which are the other kind of junction.
>I use https://github.com/Sable/soot for Java analysis myself. It is extremely powerful out of the box and can analyze: java source code, jvm bytecode and dalvik bytecode. I recommend taking a look at that if you are interested in that sort of thing.

Soot is also really slow if you're using SSA on large codebases, and the code is a mess.
But there are probably an order of magnitude (or two) fewer riders than bikers.
Yeah, even operating systems it seems. :)
You make a good, if harsh point.

But this:

"it wouldn't help the economic position of Apple, Google, FB, or Microsoft if everyone knew what code is and how it works. It strengthens the tech economy's stranglehold on society when code is treated as something inscrutable."

Is just cynical. Tech companies aren't so fragile as to depend on general ignorance among the human population. If more people understood code, these companies could create more code. I think you point to an underlying misconception that some how technology is just a barrier to entry, and doesn't provide intrinsic value. But I do not believe this to be true.
i'm not exactly sure either, too bad he didnt define "invert".

i based my comment on the only thing I could find: https://wwwx.cs.unc.edu/~duozhao/entry/2014/12/binary-tree-u...

this is only slightly harder than the trivial (if u know recursion) "mirroring" a tree problem
I've heard that or-patterns can result in superlinear blowup in the number of cases, which is why Haskell compilers have not implemented it so far.
Yes, just like a piece of furniture you built can have bugs
>making a small-form-factor custom is super-hard

Mini-ITX is easy enough. Micro-ATX is easy as pie. There are very nice cases for both. If you know of a sub-mITX OEM build that has 4690K+980Ti level performance, I'd like to see it.

>compatibility is always frustrating

Not really. A graphics card, for example, has two things to check to verify compatibility:
* Will it physically fit in my case? (Check the length)
* Is my PSU powerful enough and has the correct connectors?

That's it. Every graphics card has been PCI-E for a decade. If it fits and has power, any card will work in any motherboard.

CPUs are also not too obtuse. If you have an Intel 9-series motherboard, you can install any Haswell or Broadwell chip. This kind of stuff can easily be googled. It's no harder than getting the correct speakers for your home theatre.
Mirror: http://pastebin.com/R8HUAt5q
New mapnik website
I really completely agree.

But I think the intention with this device is to make something 'more' than just gestures. They wanted to make a device that can understand gestures, but also gives you more fine controls (buttons, analog sticks, grasping). It seems like they really want to get the basics right, and then expand on all sorts of forms of input in the future depending on the reaction and ideas of devs and gamers. In their way of thinking you could buy a leap motion right now, strap it to the headset and have complete finger tracking. The only downside is the probable fact that there will be more applications using Oculus' Touch device and some few novel unpolished apps using something like a leap motion.

Maybe there will be a device like you explained in the future.
Very handy. Thanks for throwing that together.

At first glance I was thinking of the hell that it would be to run a current IDE on a 640x480 14" monitor. But at 1280x960 on a 28" monitor, it may work pretty well.
Union: Hackers Have Personnel Data on Every Federal Employee
Costolo Steps Down as Twitter’s Chief Executive Officer Business
Looks red to me. /s

https://en.wikipedia.org/wiki/Gaslighting
This is incidentally a weakness in the US education system. You split schools into elementary-middle-high (for no especial reason) then treat it all as 'grade school'.

In every European country I've lived in schools are generally split into primary and secondary. Primary school teachers are general educators whose primary skill is teaching but who do not need advanced knowledge in any particular subject. They usually have the same class all day, which gives them a deep insight into students' progrewss (although from a kid's point of view, if you don't get on with your teacher then school may suck). In secondary school teachers may teach more than one subject but they're required to have studied their primary subject at university and done some additional study in other subjects they teach, as well as additional study in educational methods. So your math teacher has a math degree, your history teacher a history degree and so on. People who plan to teach usually develop themselves academically in two subjects, sometimes three if they're closely related or you have special experience. For example: http://www.teachingcouncil.ie/_fileupload/Registration/Gener...

California seems to be moving towards this model too: http://www.ctc.ca.gov/credentials/leaflets/cl560c.pdf

The downside of this is that if a particular teacher is sick and another has to take the class as a substitute, the substitute teacher just babysits, or comes into class with a homework assignment from the sick teacher that should be doable during the class period. The upside is that in general students are keenly aware that teachers know what they're talking about and are considerably more expert in the subject than would be possible using the assigned textbooks.

I've ranted on HN before about how destructive of educational ends the practice of using 'Teacher's Editions of textbooks with scripts and answer keys is. It degrades teaching to a branch of bullshit artistry, and students who take a subject seriously can quickly detect a lack of true expertise.

Obviously this short comment isn't meant as an accurate descriptor of the whole state of the US education system, just the legacy of the non-specialization referred to in the grandparent comment.
Well shoot, upgrading rarely works well even for power users unless you're upgrading very often instead of only when necessary. By the time your CPU can't keep up, Intel has a new socket and you need a new motherboard. By the time your video card needs replaced, you'll likely need a new PSU to handle the new power requirements. RAM changes slow enough that you might get two or three upgrade cycles from your RAM, but you'll likely need more... and if you bought 4x1 GB and now you want 16GB, you're throwing it all away anyway. Hard drives are the only things that are easy enough to replace every day, but hard drive tech doesn't move that fast. Upgrade to even a slow SSD and you're golden for quite a while.

I bought my computer five years ago. After two years, the only things original were the hard drive, the RAM, and the case. After four years, only the case was original (and even that's trashed now as pieces and parts have broken).
Is Avatard too un-PC?
Dick Costolo Out as CEO of Twitter
Ugh — this plague again. No other coding community has latched on to performance tests like the javascript one. For NO GOOD REASON.

They're not expensive. You're not binding thousands of times a second anyway, so stop your silly premature optimizations.
>I normally play games on a PS4 or PS Vita.

That's fine, nothing wrong with that. You are simply not the target market for an ultra-high-end PC gaming peripheral.
PANDAS really is a great thing
Microsoft dropping Metro Skype app, going back to the desktop
I definitely don't agree with anything he has said, nor is it acceptable in any form. If he's referring to you openly as an "immigrant" or "monkey", I also doubt that he's the type of person that would dramatically change his behavior after you flag it.

However, I still think that you need to communicate to him that the way he is behaving is deeply unprofessional as a colleague and completely unethical as another human being.

The 6pm issue is a kinda moot & one could ask all kinds of questions such as 'why didn't you eat earlier?' but I honestly think it's irrelevant.
Amazon’s E-Books Business Investigated by European Antitrust Regulators
Golden Layout: A JavaScript multi-screen layout manager
Twitter CEO Dick Costolo to Be Replaced by Jack Dorsey
That is ceratainly one of my standard examples.

The best answer to this seems to be simply:

var sum = ls => ls.reduce(add, 0)

ISTM that this is neither as elegant nor as easy to reason about, but it's also not horrible. It really moves away from the easy association that Ramda makes between

var currentTotal = reduce(add, 0, nbrs);

and

var sum = reduce(add, 0); //=> :: [Number] -> Number

Of course this arrow syntax is ES6 (or transpiler) only, but the library is predicated on that notion. Ramda is a bit of an oddity, still maintaining compatibility with ES3 - ES6.