skysight-inc/HackerNews huggingface dataset:
> I'm not sure what this school did to get it right, but it's sad to see it not replicated many times over.

> but you need to apply to go there

It sounds to me as if the school had a filter function to sort the unmotivated (or disadvantaged) out at the gate. If your strategy is to sift though the general population to find exceptional individuals, pretty much by definition you will not be making all schools in the same manner.

I think that's why successful charter schools are so hard to replicate. For every successful charter school, there are some number N that aren't.
I don't see the point of doing that. The point is, you can't add data specific to one particular function call to a singleton error value that you define on the package level.
> I feel that something monumentally bad will happen in the future related to the information these companies have amassed, something epically bad and the public will (perhaps) say "Enough is enough" but it will be too late...

What's an example of something monumentally/epically bad happening involving this information?
Was this removed from the front page?

So news about Prince dying from overdose is okay but 50+ people shot to death is not okay?
Occasionally causing large delays while maintaining the same mean response time will increase the 99th percentile and lower the median.

The metric you want is to figure out what wait time constitutes good/acceptable/bad service, and what percentage of people get that service.
> I'm genuinely curious and haven't had luck finding this with Google - neither sites that confirm this, nor those that deny it.

Wikipedia talks about this. https://en.wikipedia.org/wiki/Force_carrier .

> The electromagnetic force can be described by the exchange of virtual photons.
If it meets the guidelines, this might make a good "Show HN". Show HN guidelines: https://news.ycombinator.com/showhn.html
Here's what President Donald Trump letter will be for his successor
> I mean, really, you have no way of seeing what your friends are doing without logging in Facebook? No one can call/text/email/stop over to tell you? That's hard to imagine.

I've had trouble with missing out on social events because of not being on Facebook -- mostly party invitations (like birthday or housewarming parties) and cases where people are going out with a small group to see a movie, concert, etc. They could e-mail or text me, but they generally don't. So I still get one-on-one invitations to dinner and so on, but I think a lot fewer large and small group invitations.

I think even one-on-one invitations may be affected somewhat because people may be reminded that they want to see people by interacting with them on social media. "Oh, there's an update from x; we should get dinner sometime, shouldn't we?"
Not all big cities are unfriendly - I think you'll find levels of friendliness in the UK towards strangers differing depending on the city or area. It is a cliche, but the further North (or even West) you go in the UK, people tend to be more amenable to chatting to strangers or striking up a conversation.
> Mental health professionals say the narrative has taken hold among a group of people experiencing psychotic symptoms that have troubled the human mind since time immemorial. Except now victims are connecting on the internet, organizing and defying medical explanations for what’s happening to them.

I think that paragraph has implications far beyond just the paranoia described...
You can get constant updates from IG via scraping. Market prices are fractal I.e. Self similar at any scale
I also find weird that a subject like missing features in Go has beaten so much to death and still it continues to be a thing after so many explanations. See https://news.ycombinator.com/item?id=11888219
Oh, come on. Yeah, we do make plastics and all, but the main use is for burning.
It's not paranoia if they're really after you!

Kidding aside, while I know the article is talking about gang-stalking and paranoia of things that aren't there as variations of psychosis, there is a deeper conversation to be had about the role of real government and private business in actions and methods that actually encourage them, along with the fact that sometimes people aren't just crazy and things really are happening to them.

So as not to get to distracted from the original topic, I won't expound too much, but in an era of mk ultra, emf weaponry, massive surveillance societies, silencing of dissidents, including assassination, and various other trust breaking experiments or operations against our own citizens, perhaps they arent all crazy.
I also hate slide decks that do that. I literally went through this one left to right and thought "wow, that was a really high level overview". Only then I realized I had to hit down some of the time.

(And the "you idiot, you weren't using the correct navigation keys" is not a particularly satisfying answer, I navigated with left and right arrows the way I have always navigated slides for years.)
His point is, cash isn't free. It costs money to secure it, have guards refill ATMs, check it for fraud, etc. Somehow, as a customer of the bank, you're paying for it. Either though service fees, poor exchange rates, etc.

> There's also no fees for having a checking account

In the US, people with poor credit are often unable to get even a checking account. This is because banks figure those customers are not going to be profitable since they're not going to use the services they can earn fees on.
Because $tech_forum and $language_forum are different environments for different topics. Topics for one would rightly be OT in the other.
You realize that worldnewsdaily is a fiction site, right?
Yep. A nod will suffice for greetings in almost all public spaces. When I recognize the tell-tale signs I've been 'marked', I am always prepared to respond with the unusually effective "negative" response and leave it at that.
Canadian visa debits are still interac cards, and most retailers in Canada have their machines set up to only allow treating them as such (because fees). This is actually a bit annoying when the interac network is down, but not the credit card network.
This is definitely true. What would you rather do: buy everything from Amazon, or have a big list of distributors that you can shop and for individual categories like books, office supplies, electronics, etc.? Would you rather have to keep track of some of your friends on Google+, some on Facebook, some on Myspace, some on Diaspora, or just have them all in one place? There is a usability problem with distributed services in this way.
Exactly. Plus let's remember you are adding nothing to life here. All you are doing is collecting 30k off other people with a slightly less optimal "strategy" than you.

And no I don't believe these people are "adding liquidity and assisting price discovery".

to the reply as I can't post as HN censors detractors of big finance:

I don't believe the benefits of liquidity added by HFT are worth the enormous costs firms sink into it.
I'm not sure to be honest: It's the tin-foil-hatter in me that is saying this but perhaps something like Google gets hacked and no one finds out for a couple of years giving someone plenty of time and data to do what they want, e.g. perhaps "out" a pile of prominent public figures or just plain extortion.

I am not sure but we have seen breach after breach and no one is really batting an eyelid about it so it would have to be a massive breach leading to a massive problem.
You're making arguments against something that I didn't say.

All cars have significant manufacturing costs. So saying that making batteries has energy expensive processes isn't an argument that disqualifies EVs. An EV will have much less impact on the environment over its lifetime than a gas-powered car manufactured in the same year.
A tale of 10 Xss Flaws
The paper gives a brief description of 10 Cross Site Scripting vulnerabilities found in high profile websites e.g Tesla, Apple, MIT, Stanford, Dell, Hp etc.
http://fsecurify.com/a-tale-of-10-xss-vulnerabilities/
If its only wordpress blog why not use wordpress.com ?

Here is a nice infograph with more info; http://www.wpbeginner.com/beginners-guide/self-hosted-wordpr...
There's a minimum threshold of understanding required to make intelligent commentary on topics like this. Muddled pop-sci and half remembered undergrad material doesn't cut it.
When I get to the point in my life where I'm ready to start a company I'll aim for the opposite of what Riot seems to be doing.

I don't feel as an employer I'll own my employees. Thus, I cannot control what they do outside of my office.

If it's off the clock, I don't care. I'll be hiring by ability, not by other traits.
It was announced that it was going open-source a few weeks or months ago, so maybe today's the first day it's up on github? Or someone just happened to notice it today.
So much this. Also even if you have won it means very little going forward. If you put 100 guys in a room and asked them to try to flip N consecutive tails one guy will come out thinking he is the king of flipping, with a rock-solid "system". He's just someone who doesn't understand probability. And as you say you don't hear from the other 99 including the math guy who flipped N/2 heads and is muttering about it.
I am looking at the market as a tool to fulfil my needs, e.g. I need X and company Y springs up to provide it.

I understand the political aspect of companies like google and the security nut in me says that they are in collusion with various other parties (I include governments in that) to give them access to their data (I have no evidence of this, I just think it's the case!)
I don't think handling and manipulating checked exceptions is a terrible experience. Specifically, i don't think it's worse than using an Either, and as far as i know, that's the only other way to safely handle methods which can fail. The other options get better ergonomics by sacrificing safety, which isn't okay.

You can be somewhat generic over checked exceptions. This is okay:

@FunctionalInterface
interface RiskyGetter<T, E extends Exception> {
public T get() throws E;
}

This is not:

public <T, E extends Exception> T get(RiskyGetter<T, E> getter) {
try {
return getter.get();
} catch (E e) { // <-- can't catch a type parameter
e.printStackTrace();
return null;
}
}

So you have to both throw and catch concrete exception types, but you can have them pass through layers of generic code in between. It's not perfect, but it's something.

As a result, the streams stuff absolutely could have been written to handle exceptions. The standard Function interface could have been defined as throwing an exception, and the terminal operations could have thrown it on. Could, but i'm not saying should - the additional complexity of the interfaces would have been annoying, so the flexibility would not have been free.
XssPy – Web Application XSS Scanner
That first link is interesting, thanks.
Thanks!

It keeps the session local. It will upload to halik.io when you tell it to. There's a share option in the top right corner. Once shared, your session can be accessed by anyone.

I will make sure to clarify that better going onwards.
I'm a psychiatrist and I primarily work with patients who are involved in the legal system.

A sadly common scenario that I see is paranoia resulting in the patient acting in what they believe to be self-defense, with injury or death to another person.

Once medicated, and able to process the world without their paranoia, these people are almost always devastated about their actions.
Autonomous vehicles. Then when my girlfriend forces us to move back into the suburbs, I won't lose my mind commuting into work.
see also Terrence McKenna "Culture Is Not Your Friend" https://www.youtube.com/watch?v=4-tY6hmKcms

Still, there's seeing a culture for what it is and then there's running from invisible monsters. I think we can agree that most of the folks from the article need some healing.
Lots of people have clicked 'flag', presumably.

There's absolutely no way that the comments here will be productive and not derail, so people have flagged it.

It's almost impossible that anybody with an internet connection will miss this news, so it doesn't need to be here, either.
There's an old con game - you send 500 letters to gamblers, predicting the next Dodgers game. 250 predict they'll win; 250 say lose. Game happens, 250 people think Hey lucky guess. To those you send 250 letters, 125 predict they'll win the next game; 125 lose. After 6 games you have 8 people who have seen you guess right 6 times in a row. Get them to pay you for another (worthless) letter.
If you're going to make a shared backend between Android, iOS, or other platforms Xamarin supports, I highly suggest using MvvmCross to guide the structure of your project. I've worked on a project with a custom backend and it was a monster of a codebase that I never was able to fully understand. However, if it's mostly just UI and little backend, do your own backend, because MvvmCross would introduce unneeded overhead.

Let me know if you have any other questions.
> I thought I would go the radiology route, because that's where all the cool tech is

Also where the money is as well (vs. Psychiatry).
American here, I have always found it disingenuous and a little creepy when people smile while baring all of their teeth. There is a difference from showing some when extremely happy and the practiced facade people selling something have learned to do unconsciously, notably when lower lip curls down for more dental exposure.
Maybe, but is that going to stop fourchan?
When I've needed to dump a stack trace, I've just included an interrupt handler which prints the call stack to a debug log.

That has been good enough for the problem of "wtf is this ruby process doing for _minutes_ at a time?" That doesn't get you flame graphs, but you can take a few snapshots and get an idea of what is happening.

For more involved perf debugging I've used ruby-prof.
Atom was notorious for not being able to open moderately sized files earlier in its life: https://github.com/atom/atom/issues/307
don't forget to share the links
If the number of people in the system remains constant over time, then you can measure throughput by counting the rate at which people either arrive or get processed.

And you're right about throughput, I was implicitly holding the number of people in the queue constant, and you can obviously add arbitrary delays and increase the number of people in queue without touching throughput.
My interest rate is maybe 0.3%, so they're definitely making money on that.

But that's not a "fee." Obviously banks cover their operating expenses somehow. That doesn't mean they charge me to have an account or to deposit cash (in fact, charging for deposits would be counterproductive).
>> And no I don't believe these people are "adding liquidity and assisting price discovery".

The nice thing about reality is that it remains even when your belief persists against it.

In large-cap stocks during rising markets, high frequency trading does improve liquidity[1]. While the effect may not be as prevalent during a downturn and it may not impact smaller stocks as much, I'd like to see your evidence that it actively harms the market or that the practice is vapid and produces nothing of value.

Or is that just a statement you made because it nicely aligns with your political conception of Wall St?

EDIT: It helps to point out that "algorithmic trading" and "high frequency trading" are not at all the same thing, especially as these terms are usually conflated on HN. An algorithmic trading system does not necessarily need to trade at high frequency. Some algorithmic trading systems make trades in intervals of days or weeks, not seconds or milliseconds. The paper cited here describes the market-making activities of what is traditionally called high frequency trading and the benefits it has over human brokers of the past, but it uses the umbrella term "algorithmic trading."

EDIT 2: The parent comment responded to this one by editing his original one, because "HN censors detractors of big finance." You also claimed you don't believe that the liquidity provided by HFT is worth the capital that large firms dump into it.

In 2013 the entire HFT industry made about $1B, down from $5B in 2009[2]. HFT is not a large industry. It is eating much of Wall Street's traditional market-making inefficiencies, which is why it is widely disliked, but it is not "big finance." Big Finance is generally opposed to HFT.

You still haven't provided evidence or numbers to prove or even quantify what you're claiming. Are you saying HFT is not worth the investment to firms, or are you saying it isn't providing some vague "value to society" relative to alternative uses of investor capital?

The first case is obviously nonsensical, as many firms generate profit using high frequency trading strategies. The second case is like saying we shouldn't do anything if it doesn't save impoverished children in Africa. The added liquidity has a material and beneficial impact on trading outcomes for buy-and-hold retail investors, which is shown in my first citation here. You have yet to satisfactorily refute this.

[1]: http://faculty.haas.berkeley.edu/hender/Algo.pdf

[2]: http://www.bloomberg.com/news/articles/2013-06-06/how-the-ro...
No, his comment is exactly right. As long as there are more employees than customers in the store, every customer is quickly approached by an employee and can make their purchase. As soon as the number of customers starts going over the number of employees, the employees basically start selecting which customer to approach next. Instead of a line where everyone knows their position in it, everyone's just standing around hoping they're the next one, or trying to form pseudo lines near a busy employee.
I don't understand your response. You're talking about the 2nd Amendment and things not being literally illegal, neither of which address what I said. I'm not talking about the legality/illegality of squatting (which is the only thing that seems relevant to housing).

I see a lot of attitudes in regards to housing that I can only describe as entitled, which is unfortunate because it's a very negative word. But nothing else immediately comes to mind. Do people have a right to live in any given area, absent their ability to pay for it? I don't think so. There's no amendment for it. There's no laws for it. The closest applicable laws are those providing for rent control, but all that does is decrease the cost of living somewhere (at the expense of supply and housing quality) -- it still doesn't guarantee you a right to live there absent the ability to pay the lower rate.

There are lots of places I would love to live in but cannot because I either cannot afford it or am not willing to spend a very large percentage of my salary on it. It's a purely economic decision. How is there a right to live somewhere that is independent of your ability to afford it? Are you making an argument that if you are born somewhere, you have a lifelong right to live there at the prevailing rent at the time of your birth (adjusted only for inflation), and that this right should transfer to your children? That's really what it comes down to when people complain about no longer being able to afford living somewhere that they previously were able to live in. I don't think there is such a right, and it's certainly not reflected in any laws.
It's only illegal if you are an insider or got it from an insider who realized a gain on it. There's a lot of misconceptions here about what insider trading actually is.
Denner in Switzerland does not accept Visa, MasterCard or any other card (except of some special version of Maestro) for the same reasons.

It shocked me a little during my first shopping, that I could pay only in cash in Switzerland.
This is the thing though, it has also been removed from Reddit !

Think about that.

If comments are a problem, then lock it for comments and only allow voting.

But censoring out important news is a huge problem.

Well then I expect all breaking news to be deleted from HN, and I mean all of it.

You can't take the largest mass killing on American soil since 9/11 and simply censor it out because it is a hassle.
You should check out what Alan Kay has to say about Tim Berners Lee (amateur) and the Web (disaster) in general before putting people on pedestals and worshipping them.
To be fair, some people (to a lesser extent) were targeted at random when Facebook was showing some people more negative posts on their newsfeeds as an experiment.
I still use dithering daily with 24 bit color images. In fact, my test for whether a modern image editor is serious and good is whether it supports dithering when converting from floating point color channels down to 8 bits per channel. Photoshop does this.

The most important reason for me is not display on the monitor, but printing the image. I do a lot of large format printing, and printers smash parts of your color space and make some gradient/banding problems stick out like a sore thumb. Dithering is critical when printing!

Gradients with banding can easily show up when you resize a large image down to a smaller size. This is a good reason that resizing probably anything less than 16 bits per channel images should be done in a higher precision format than the image.

I haven't tried to use an error diffusion dither when converting 16 bits per channel down to 8... I'm not sure how much that matters. It might make a difference, and it sounds fun to code either way, but in my experience, a good random number generator suffices to make color bands vanish.
Although not permanent, try this for a couple of minutes of bliss:

Place the palms of your hands over your ears with fingers resting gently on the back of your head. Your middle fingers should point toward one another just above the base of your skull. Place your index fingers on top of you middle fingers and snap them (the index fingers) onto the skull making a loud, drumming noise. Repeat 40-50 times. Some people experience immediate relief with this method. Repeat several times a day for as long as necessary to reduce tinnitus.

This always works for me.

Source: reddit post, gilded x29 [1]

[1] https://np.reddit.com/r/WTF/comments/3l3uri/these_guys_light...
Wouldn't you still need a web server? Assuming we still need some sort of web app running on a web server, I think you can expose any DB action you want as an API endpoint and hit it using http://www.jasonclient.org/doc/#2-network-request Please let me know if I misunderstood your question.
> Specifically, i don't think it's worse than using an Either, and as far as i know, that's the only other way to safely handle methods which can fail.

`Either`s can be nested, put in lists, passed as arguments, and pretty much everything else you would expect from first-class values. Checked exceptions can't.
I think it's called 'conspiracy theory'
Police: 50 killed in Florida nightclub
What if "solitude" is just a social and personal acceptable way to talk about "loneliness"?

I was thinking about those people who call themselves "expats" and not "immigrants".

In other way: the rich is "solo", the poor is "lonely".
Hmmm, delicious spam
It was a terrorist attack, Pride events won't change a damn thing about it.
Toronto is poised to become a producer of tech startups
I used to agree with this but it is easier than ever before to seriously reduce your footprint on the web: I use a VPN, UBlock Origin and NoScript and although it's not perfect it stops all third parties tracking me with their stuff. Dead.

It can be tedious at times, like hitting a link on HN to a site that requires JS... do I let them in or not? But it can be done.

I don't know what size my footprint is online but I reckon it's tiny compared to, say, my mums.

The thing that worries me is when someone puts everything together, i.e. Facebook data, Google data, Twitter data, government sites data etc... that's worrying.