skysight-inc/HackerNews huggingface dataset:
Well, the inspirtation in my mind was the interference from the double slit experiment.

If we think about a particle going from A to B, over t from 0 to 1, then the common interpretation is that it takes all paths and that those paths can interfere with eachother.

If we think about t=0.5, then the "particle" is not in a definite place, but sort of "smeared" out across its possible paths. The thought was if those possible paths, together, could form an embedded sphere in 3+1D, and in some sense could have similar computational knotting behavior. (And moreso that form shells of equal probability in a solid in 3+1+1D, with the extra dimension coming from the probability associated with each point.)

Im not sure how you'd "read" that, though possibly by "weakly" interacting with it in flight or it might contribute to the "random" outcomes of measured values. Since knotting is low-energy in general, we might not notice that behavior under normal conditions because of thermal interference adding a lot of computation in flight, hence making the values seem random. Similarly, heavily controlled experiments likely don't permit enough freedom to be anything but the trivial knot.

I expect that there is a reason that doesn't work, but figuring out where my hunch fails will help learn more about QM.
Econet’s Masiyiwa warns regulators not to be “ham fisted”
This was a great little writeup, and I appreciate you taking the time to make it.
Its visually more appealing, with some interesting UI features. Some character mode apps seems to have alignment and scroll speed issues, but the project appears to be in beta.

I'm comparing to iTerm2, which is faster, but plainer in the traditional terminal sense.
Unsupervised Image-To-Image Translation Networks
I know Stripe is 7 days
In 2004, shortly after Google launched Gmail, I put some ads on a friend's website that had about 10 monthly visitors, using my gmail account. The ads didn't really bring in any money, and then we got a notice about "fraudulent clicks" where they took away the $2 we had earned. So we took them down.

12 years later, my account is still blocked from signing up for Google ads.
Facebook now flagging fake news
Thanks for checking out the project. You can also query the underlying database at ~/.erised/erised.sqlite3 if you prefer SQL over JSON strings.
The trouble with any successful market beating strategy is everyone will copy it as best they can, causing it to revert to mere market performance. The way to consistently beat the market is to keep your strategy a secret, have an edge (like being electrically closer to the exchange), or cheat like Bernie Madoff.
Fixing Facebook's Fake News
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> 3) I believe that there are some managers that are much better than other managers for at least short times.

There are always managers who outperform the market, if you look backwards. The problem is whether they're able to repeat their performance moving forwards or if it was due to pure luck.
> It's impossible to assign a "true"/"fake" value to all news stories... especially with our increasingly biased and divided media.

This is an absolutely irrational argument, which is not to say it is incorrect. It is possible to assign levels of truths to information - we do it all the time in infrastructure. OTOH, it matters not if biases exist in media - those biases can be "truths" as well to the groups of entities who share the biases.

Truths don't imply absolute labeling however, as you so well point out. We all knew Fox News was biased toward the Republican's views. In hindsight, Fox looks quaint compared to Breitbart. Supporting Breitbart or Infowars is another thing entirely, given they support continued, or self-referential irrationality. Irrationality that spreads itself, in other words. I consider this harmful to humans.

The only people who don't want truths to exist is people whose intent is to spread their irrationality to gain control over others.

What will happen, and you can mark my words on this, is that AI will be known primarily in assisting humans in their final effort to reduce the amount of damage those-who-speak-for-others cause the larger group, primarily by detecting their intent in FUCKING with the way we all communicate with each other in a trusted manner.

When, not if, this happens, those who played this game will learn the real price of dissonance.
I would expect a bit more in article: missing fissionable materials, South Africa, Israel, Pakistan, Saudi Arabia, Brazil....
I don't agree with harsh punishment of innocents, but mess with strict regimes (this includes the US now) at your own risk:

https://en.wikipedia.org/wiki/List_of_foreign_nationals_deta...

/edit

to add to my comment, remember that the moment you step over the border you are at the mercy of a regime that can treat you however it likes. It doesn't matter whether Otto Warmbier actually stole that poster or not, since he's spending 15 years in DPRK prison anyway.
Increasing activity increases calories burned, which can help produce a caloric deficit which will lead to weight loss.

Obesity is literally impossible without being in a caloric surplus over the long term.

Added sugar contributes to the problem, in that it is not very satiating so it makes it easier to overeat, but you can easily lose weight on a high sugar diet so long as a caloric deficit is maintained.

The actual physiology is well-understood. The only problem is changing habits and behaviors, which can be difficult but is certainly not even close to impossible.
He used D3.js. It produces standard HTML SVG elements which is why it looks handcrafted, but you can see the d3.min.js link at the bottom of the body. D3 is very powerful and can probably be used to do what you want but has a very steep learning curve imo.
IQ test are a proxy for g. They are meaningless when applied to computers.
Am I just dense or are the figures in this paper completely unrelated to the text?
Yes. The Durbin amendment specifically prohibits processors from restricting you from offering a discount for payment by other means.[1] What you found on the net probably is out of date.

Incidentally it also regulates debit interchange down to practically nothing. Processors like Stripe are making a killing on debit. Try to find one that does "interchange plus" pricing, and then you can accept debit at no additional cost to your customers.

[1] see p7 http://blog.legalsolutions.thomsonreuters.com/wp-content/upl...
No.

NodeJS (V8) is slower than Racket in many benchmarks:

https://benchmarksgame.alioth.debian.org/u64q/measurements.p...

https://benchmarksgame.alioth.debian.org/u64q/measurements.p...

Note that Racket is not even in the top 5 for most Scheme compiler benchmarks:

https://ecraven.github.io/r7rs-benchmarks/benchmark.html

There are a bunch of Scheme implementations in JS, none of them are benchmarked in the previous link: https://github.com/jashkenas/coffeescript/wiki/List-of-langu...

JavaScript is a really shitty language to target because it has very few performant control structures and terrible data types (you need ints and good arrays). Scheme also has first-class continuations, which cannot be implemented efficiently in JavaScript. Even if you leave out continuations IMO it is impossible to make a performant transpiler for most languages that targets JavaScript.
Why FOSS mobile communication matters
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Here's the problem with that idea: How do you convert your abstract high-level description into a set of specific operations? First you need to parse your specification, and parsing natural language is already hard. Secondly, you have to infer everything else that was requested and will be needed but was not originally specified.

Alright, now you have your list of requirements. Firstly, you must break each requirement down into a long series of small steps that perform exactly one operation - such as add 1 and 1 together. You must also find the correct order for all of the steps, as well as the operations to store and manage all required data in memory as meeded.

Finally, the list must either be translated to the native language of your computer's CPU or ran by a program running on the CPU.

As you can see, this is actually a large and difficult task, even if you manage to not encounter any unsolvable problems along the way. I would think the following comes naturally: The difference between your language and the 'dumb-as-rocks' ones is that the latter are implementable and usable.
if the Chinese economy is crashing, I think it is a pretty good thing. Just imaging when it is not 'crashing'.
I appreciate the reply!

Yes, if you put little R^4 balls around points of the line, you can still untangle it. It's basically still a line. (They might have to be really little balls, but the definitions all use neighborhoods for defining the legality of knot moves, so you can't "shrink" the knot out of existence.)

My actual thought was slightly more complicated, in that particles dont need to necessarily not be a point all the time, since a sphere you're slicing with a plane can appear as a point -- see sibling comment for what inspired the idea.
Where does the pin come into play for chip based credit card purchases?
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Close enough, no?

Or: if we've got data let's go with the data. If all we've got is opinions let's go with mine.
As an added bonus the heat coming out of the hot water heater might be inside the home where it has to be removed via AC meaning that not only is that heat being wasted instead of providing hot water, it's also increasing your AC usage and wasting even more power.
> (this includes the US now)

Can you expand?

edit: I don't understand why this question was so poorly received. I didn't know what this was in reference to and now I know having been given proper information.
Those sections specifically state that those rules don't apply in the U.S. (anymore). That's the Durbin amendment.
> Explore, yes, by all means, just not near politically fraught international borders, even if you are a white man from America, with all the privilege in the world to marshal

I'm not an English native, can someone explain me what would be the meaning of the verb to marshal in that sentence, in the context of using of the word "privilege". I don't want to misinterpret the last point.
Yep, surely they'd only have resources to deal with half of the problem - meters that undercharge.
Yes, absolutely. I say this every time this homework assignment shit pops up. It's offloading the cost of hiring on to prospective candidates. The asymmetry of cost should give everyone pause. It's plainly exploitative.

So you block off 4-8 hours of your life for this job you're really excited about. What is the employer putting up? Generally nothing. They get a sea of responses and they get to pick a few of the best ones. The 100 responses they got cost these candidates 400 hours of time for no cost to the employer whatsoever.

Take home assignments are fine, but the employer needs to put up something as well. Either pay for the time I spend on it, or have the assignment late in the interviewing process and have employment contingent on passing some known bar ahead of time. That is to say, I should be the only one doing the assignment and there should be no wishy-washy rejections.
Wonder if part of it has to do with incentive structures for patents? My understanding is that at Google, if you have <= K (2? 3?) inventors on a patent, they each get $X,000, and more than K, $X*2,000 is split N ways. (I have not received any patent bonuses personally, so this is all second- and third-hand.) This means that it pays to keep the number of inventors on a patent small.

If Apple has a different structure, this may account for the differences.
> "favorite" wart at the moment: '% x ' parses to the literal string "x" - "%" when not preceeded by an operand that makes it the infix operator "%" starts a quote-sequence where the following character indicates what the quote character should be - with the exception of a few special character, most characters will set the quote character to its identity. So in '% x ', the quote character is space.

How is this different, in principle, from any other unary/binary operator like plus? In most languages, when `+` is preceded by an expression, it's a binary operator, otherwise it's a unary operator.

The same seems true here: when `%` is preceded by an expression it's binary `%`, otherwise it's a unary operator with the semantics you describe.
What One Photo Tells Us About North Korea’s Nuclear Program – 纽约时报 国际生活
Ask HN: Services like InstaFameNow for Twitter?
was wondering if there are any?
Fair. I should've thought of designers and photographers. Ballet makes sense, since there are trials for prestigious orchestras and the like, but that isn't something I knew about.

When I wrote my comment, I was thinking of the medical profession, dentistry, auto & other mechanics, appliance and other device repair, construction ("there's a pile of lumber in the back, you have an hour to build a shed and then we'll consider hiring you"), plumbing, civil engineering ...
It means he has a lot of privilege.
For some context, this resulted in the author of the virus in question, Robert Morris, being the first person ever indicted under the CFAA. Morris later became one of the four founders of YC.
I don't disagree. :) I'm intrigued and want to hear more of your take, though we might be too deep in the comments to have a meaningful conversation.

The analogy isn't perfect, of course, but I only think interviewing and dating are similar in some ways, not all ways, and they aren't the same thing. Of course.

It's true that business is about finances and not bonding, and there are definitely times where it's best to keep that abundantly clear, I think you add a good perspective.

It's also true that I have declined to hire some people primarily due to their negative attitude and declared lack of interest in the company or the job they're applying for, and I know others who've made exactly the same call. I also screwed up a job interview once by being overtly disinterested, and regretted it and it stuck with me.

So, we can certainly disagree about how it's characterized, I don't mind what we call it, but it's still true that coming to a job interview disinterested or only as a self-interested financial arrangement is less likely to score you the job you want.

I can say from personal experience that starting a company truly is similar in many ways to getting married, with all the trials and tribulations. To come to that relationship primarily as a self-interested party simply may not functionally work at all, and it's certainly very common for business partners to be mutually emotionally invested.

Having interviewed some people recently for a more co-founder type of position, the process was more literally like dating than any engineer hiring I did before. People were in fact looking for a personality match, and requested that I take personality tests to validate that. People do look for an alignment of vision, and do evaluate me on the basis that we'll be spending a lot of time together should we pair up. We talked business too, but the evaluation of common goals and personality match, general likability, work ethic, goals and dreams for the future, these things were the primary traits I was judged by, not my technical skills, and not the financial equation. And not by my ass either, so yes, it's not dating, but it was surprisingly close. ;)
https://youtu.be/V8U4Qn6iIIg
The right question is probably what syntax can't be expressed cleanly with a Pratt parser. Operator precedence parsing in general can be extended to parse anything relatively easily by introducing different kinds of operators with special treatment, but if your grammar can't be cleanly expressed in a way that naturally results in a sensible parse-tree by applying operator precedence (e.g. asterisk should bind tighter than "+" so that "5 * 2 + 1" is parsed (+ (* 5 2) 1) rather than (* 5 (+ 2 1))) you can end up with ugly special casing.

An example that makes it more complicated (not impossible):

In Ruby "x" depends on context. It can be a method call or a local variable reference. If "x" has been assigned to prior to the reference, it's a local variable. Except if it has a parameter list. "x 1" is a method call. Except if it's within a literal hash. "{ foo: x 1 }" is a syntax error - the parser wants a "," after "x".

Even with Ruby I handle a substantial part of the syntax in my compiler with an operator precedence parser where the operator precedence parser class itself is about ~170 lines of Ruby (excluding the table of operator priorities which adds another 145 lines). But on top of that I so far have ended up with about the same again to "massage" the resulting parse tree into something that's nicer to work with.

The challenge with these types of parsers, though, is generally more often that they are harder for people to reason about. If I express the rules I started with (for "+" vs asterisk) in a BNF-type syntax, I could do it like this:

expr = plusexpr
plusexpr = mulexpr ("+" plusexpr)*
mulexpr = simple ("*" mulexpr)*
simple = number|identifier

It's quite clear if you've seen some variant of BNF before that "1 + 2 + 3" will go expr -> plusexpr -> mulexpr -> simple, return 1, then fail to find asterisk , find "+", parse a second "plusexpr" find 2 + 3, then exit with (+ 1 (+ 2 3)). And that "1 * 2 + 3" meanwhile will go expr -> plusxpr -> mulexpr -> simple, find "1", then find asterisk parse a second "mulexpr" which will find "2", return up to plusexpr, find "+" and eventually "3", and result in (+ (* 1 2) 3).

But the grammar above, in terms of an operator precedence parser might be expressed by a table like this:

+, INFIX, 10
*, INFIX, 20

The rest is "obscured" in the parser function. As long as it's this simple you can probably guess what's going on (the last number is the priority, and the values are arbitrary - only their relative size and whether high or low values are treated as binding tigher or loser by the parser matters), but when you e.g. add things like different types of brackets and parentheses, function calls, operators with different priorities if used as a prefix vs. infix etc. it can easily become hard to understand intuitively from the table of operators how the priorities interact.

EDIT: Modified due to HN handling of asterisk...
That's a good way to get passed over for good jobs. As a potential candidate, you aren't in a position to making such demands and your unwillingness to demonstrate your skills on a simple assignment just means you won't be considered. Plenty of other fish in the sea who have no problem completing a simple assignment.
taxis have apps now. Payments are handled before I step in the car. Common destinations are saved. ETAs are live. The entire Uber experience is now the defacto experience.

Yeah I'd call that disrupted. If they don't survive it IDGAF.
At that time Soviet Union was shooting their own people, who would try to cross the border in opposite direction.
Unless they have a gun to your head, they aren't making you do anything. Applying/Interviewing is your choice.
Every comment on this thread is valuable. The key is lots of practice and feedback. If Toastmasters is not an option - or if you don't feel ready yet, an alternative is recording yourself while doing speaking exercises at your own pace. We built a tool for this exact reason: https://www.speakscore.net
Nukes aren't that complicated, at least not simple gun-type devices. The tough part of making a crude nuke is getting the fissile material.
In that context, it means "to muster up." To gather and apply.
What if the HW assignment became the norm. Could you spend half a day, or a whole day to 10 jobs? What if after you spend all that time you still don't get any offers, or even interviews? Job searches are already hard enough (for most people) without these huge time sinks becoming the norm.
Seriously. I'm a lawyer and I'll take the case. Since no one else wants it, let's do it on a contingency basis. (I am a lawyer, but that was not an actual offer -- just an offer to discuss.)

Another would be to file a claim in small claims court for the max allowed there -- say $10k or whatever and see what happens. You could even represent yourself there after doing a few hours research. Judges will practically let you write your briefs in crayon in some jurisdictions.
use, collect, gather up, stockpile.

"a white man from America" has a lot of privilege in the world, but even putting it all together could not help this guy.
I don't agree about the unique account number every time. That's nice to opt into when you want maximum privacy but it screws up things like loyalty programs or recurring billing where you actually do want a merchant to remember you.

What we can agree on is that there should be strong authentication. Apple Pay is the best system I've seen. It creates a unique but static account number that can only be used with Apple Pay, which has strong authentication which is also convenient (Touch ID), so it can be mandatory. Thus it doesn't matter if the number gets stolen as it's useless without Apple Pay.
Check the actual papers.[1][2] For single-phase meters, which covers most residential uses, this is a non-problem: "No deviation beyond the specification could be observed; no influence of interference due to interfering or distorted voltage, and no influence caused by interfering currents were observed." All the problems were seen with 3-phase meters, usually found only in industrial and commercial environments.

Figure 3 of [1] is puzzling. They claim to be testing a 3-phase meter, but the circuit shown is single-phase. Are they testing 3-phase meters with only one phase connected? That's way out of balance; 3-phase systems normally have at least roughly equal loads on each phase. While a 3-phase meter with an wildly asymmetrical load ought to measure accurately, that's not a normal condition.

[1] http://doc.utwente.nl/102016/1/Runaway_energy_Meters.pdf
[2] http://ieeexplore.ieee.org/document/7866234/
What you need to know before starting a dropshipping business by Beyond Eleven
> Outside of the interview context, I haven't balanced a red-black tree since I was in undergrad over 15 years ago.

Which company asked you to balance a red-black tree in an interview context? Name-and-shame them. Seriously. I've heard many whiteboard interview polemicists use this example, but have never seen any evidence for it actually happening.
> It's offloading the cost of hiring on to prospective candidates. The asymmetry of cost should give everyone pause. It's plainly exploitative.

There's nothing wrong with that, it's a competitive market, those who get hired are those willing to compete, not those who complain about unfairness about being asked to demonstrate their skills. Employers spend tons of time filtering candidates, even reviewing the submitted work takes time and effort, saying it's no cost to the employer whatsoever is not only untrue, it's naive.
No. ATM need to sign amounts as well,but keep the key in memory. I don't think it's a consequence of swipe vs chip or anything. It just the UX built into the machine.

IMHO , consumers find it reassuring that they are asked for a pin AFTER the amount is entered into a swipe machine in a bar (where you are much more likely to be drunk). This kind of a mechanism is very nice when amount is entered by someone else (the retailer/cashier).

At the ATM, you are the only one that enters the amount.

So the pin entry at the end of the workflow is not a bug..It's a feature.
Marshal generally means something along the lines of "to wield". So in this case the author is saying that even though as a white American male he possesses many societal privileges (and may attempt to take advantage of them), they aren't enough to overcome the political barriers outlined.