skysight-inc/HackerNews huggingface dataset:
You should really look into the history of IQ testing. In its infancy (in the United States) it was used to show that Italian Americans and Irish Americans were fundamentally inferior to Anglo Americans, because those populations had lower IQ scores. Lo and behold, those scores normalized as those populations became more assimilated.

If you had written this comment (on paper) early last century you'd be telling us that the liberals refuse to accept that Italian immigrants are inferior to their Anglo counterparts. Such ignorant liberals!
Ask HN: How does email tracking work?
From my understanding, Sidekick uses a "tracking pixel" that reports back to their servers when loaded, then sends the user a notification. Are there any guides out there on how to program something of this nature? Or are there any open source projects that may provide a more in-depth look into how email tracking works?

Any more information would be greatly appreciated.
Understanding Machine Learning – An Interactive Coding Tutorial
She knows she and SPARK are how the real design would be done. Just got to map it for production to something else majority are willing to work with, optimize, and maintain. ;)
Homeland Security websites vulnerable to cyber attack: audit
Or about 10% of their full-time workforce [0].

[0] http://finance.yahoo.com/q/pr?s=HPQ+Profile
Consensus in a distributed system is not the innovation of Bitcoin, just propose a new block and let all parties digitally sign the block if they consider it valid. If more than half of the parties have signed the block it is considered accepted. This of course requires knowing the parties because otherwise a single party could just cast arbitrarily many votes.

And here lies the innovation of proof of work schemes, preventing one party from casting arbitrarily many votes by making votes expensive. This also is no innovation of Bitcoin, Bitcoin just put all the pieces together. But if you don't need pseudonymity and can know the involved parties there is no need for proof of work, i.e. you can easily replace mining with an identity verification process. And you get a system that is in some sense better because you remove the possibility to obtain more voting power by buying more hardware.
This is true, and an Arduino and a switchable strobe will let you figure out the frequency. The important thing is to know which direction it lets go first after the light goes away :-)

I read an advertisement for a red light camera system that offered this as a feature (traffic management for emergency vehicle (EV) ingress and egress) it had the feature that you had to have red and blue lights, so it wasn't fooled easily by civilians.
Ironically, the big header image is JPG

http://ucnv.github.io/pnglitch/files/header.jpg
Hey HN, this is the Assuredly team. Thanks for all of the feedback, this was exciting to wake up to this morning.

We’re certainly not trying to be creepy or move us all toward a bleak authoritarian future.

Reference checks, though time-consuming, are already performed by many leasers looking to fill a room. Our goal is to simplify the process to the point where it becomes feasible for anyone wishing to learn more than what can be uncovered in 15 minutes over coffee. All checks that we perform are done strictly with the permission of the applicant; we’re not doing any sneaking around.

Many of us have had bad roommate situations unfold after seemingly smooth interviews - from financial disagreements to apartments nearly burning down. We’d like to help you avoid those situations.

We’re in the experimentation phase. The first round of checks are being performed this week and we hope to learn more about the underlying needs and what we can do to help.
Basic version is anything that can look at a logfile of a webserver. Each mail gets a specific URL for the image, HTTP request to there turns up in the log.

Or you put some kind of server side app on the server that tracks the request in its own log.
> How is sex, race etc required to evaluate guilt or innocent?

Because it's part of the facts of the case (imagine for instance if you couldn't mention the color and make of a car that hit you)?

Not to mention how would you hide the race and sex of a defendant from the jury? Not let the defendant into the courtroom? Move everything to written testimony?
Google’s Medical Moonshots Take Aim at Mental Health
Moynihan's ideas didn't and don't fit neatly into an existing political coalition on either side of the aisle. Supporters of enlarging social welfare programs and supporters of the traditional, gendered nuclear family as a normative institution are not quite disjoint sets, but the overlap has been shrinking for decades.
Fast download from YouTube, Soundcloud, Vimeo with 10K users hosted for $5/month
What plan of action are you recommending here? And how does it differ from your plan for any person of equivalent IQ from other groups?

If IQ is that important, why use an unreliable, socially constructed grouping instead of measuring it directly?
DJB Redo Implementation in Bourne Shell
Or autonomy: tell participants they need to design their own coin-flipping experiment, then perform, measure, and report the results. They still might be underpaid on a $/time basis, but with a greater investment in the process I suspect they'd have a certain amount of pride in ensuring accurate results.
> One pilot in Minnesota even reported seeing something that “resembled a dog.”

Which I thought was pretty odd, but indeed some drone hobbyists are flying their former pets[1][2][3]

[1] http://www.theguardian.com/artanddesign/gallery/2012/jun/04/...

[2] http://www.nltimes.nl/2014/09/12/boy-turns-pet-dead-rat-dron...

[3]http://makezine.com/2015/03/31/4-taxidermy-drones-yes-thats-...
I'm saying it's a path worth exploring. The research on LISP machines, synthesis, splitting of apps between CPU and FPGA's... all this showed functional approach got the job done better with less hardware and the well-known software benefits. Even the workhorse instructions of the imperative processors operate in a functional way when you look at how the processors actually work. There's so much overhead in supporting the illusion of sequential, imperative programming that it might be better spent utilizing hardware to support concurrent, functional programming more efficiently.
XFS would be perfect if there was a way to disable delayed allocation. Has that changed recently? I still use it on a number of machines because it tends to work better with large volumes. But that hasn't kept me from losing data with it, repeatedly. Of course I've lost data with lots of other linux file systems too, so in that regard it isn't much worse. These days if I really think the data is important I still use a bunch of little ext3 partitions with data=journal, barrier=1 and all the disk caches set to write through mode.

https://en.wikipedia.org/wiki/Allocate-on-flush
Hi man,

it really depends on the type of business/product you try to promote and your FB PPC skills (targeting and creative).

Generally FB isn't a good place to generate direct eCommerce sales, but it's great for Lead Gen, Branding, content promotion.

I'd recommend to start with one campaign and test 40-50 (not necessarily all at once) ad targeting via separate ad group. If your budget is small so target a small and precise audience and bid $20-$30 daily on each ad group.

That will give you an idea about what is the right way to target your audience, who are they and what they do, and what type of creative drives the best response from them.

Here is a recent post I wrote regarding Facebook targeting, you may find it valuable as well.

https://medium.com/@yurishub/7-facebook-ads-tips-to-help-you...

Good luck!
Wine Staging
Is the HTTP request for the image or for a blank page? I'm just guessing here, but I guess a new file is created each time an email is created and then a reference to who the email is sent to is stored in a DB somewhere?
Things I was unprepared for as a lead developer
Thats a good list. I'd also include linear predictive coding, the foundation of basically all digital telecommunications.
From an energy perspective, as Heinlein pointed out "Once you get to earth orbit, you're halfway to anywhere in the solar system."
I pretty much owe everything to this film, it's how I started with computers. I didn't even have one when I watched it but the moment it ended I said "That's what I want to do!". Never became a "hacker" but at least I'm a developer and do something I truly love.

As for the accuracy of the film, I don't really have much to say. I don't expect films to be "too" accurate, if they were they would be called "documentaries". It's cool to see Gibson they way it was and them turning traffic lights green etc.
The fallacy in your comment is that you assume the degraded state to be inherent. I'm Irish myself and while Ireland became independent of its colonial oppressor and is a fairly prosperous nation today, people used to make the same assumptions about racial degradation and so on that you do about black people.

Your argument proceeds like this: Group X is badly off, because group X is inferior, therefore it's group X's own fault. Well, if you knew a group was at an enormous starting disadvantage in an iterated economic competition, naturally you would expect its position to decline over time. But if you were to provide group X with resources to mitigate its disadvantage, why would you not expect it to revert to the mean? On the other hand, give me a license to systematically oppress any group - people in your family tree, for example - and after a few decades I'll be able to make them underperform significantly, especially if operating the machinery of oppression allows me to collect economic rents.
I'm not sure if you're claiming that the OAuth integration into WebDAV is broken or OAuth itself (because remoteStorage's integration works fine, e.g.).
To be clear, we’re offering reference checks, rather than background checks, for roommates.

Many leasers already perform reference checks. Take a look at any article about finding a good roommate and you’ll see that almost every one recommends this step. We just know that it’s a pain, so we’d like to make it easier for those who don’t have the time to do it themselves.
Is there an opposite phrase to 'damned with faint praise'?
You're saying only Americans matter. Workers in Mexico and China have the same inherent worth as Americans do, and they benefit from free trade.
According to this article, the brain has implemented epoll(4). Wake up the neuron when you want to use it. The upper bound is tied to how many active firings are happening concurrently.
something that isn't an image might show up on the page, even if only 1x1 px big, so it's "cleaner" to send an empty gif or something. Doesn't have to be a new file for everybody though -> one could simply redirect everything to one file, or put the metadata in an URL parameter.
In the home stretch of my Tiny House construction.
https://goo.gl/photos/dPnx7jttphUvQXcj8
What does "Start Course For Free" entail? The link goes to a signup page that doesn't give any information. Does it require a credit card? Does it give you access to the whole course but only for a limited time? Or does it give you just a small intro? Is there a way to see a sample of this or some other course without giving them my email address?
They will if they think they can make money from doing so.
Towards the end of an iterated prisoner's dilemma, your opponent has fewer upcoming opportunities to punish you, and so you may as well defect (especially since your opponent may be thinking the same thing). The interaction in the study really doesn't resemble an iterated prisoner's dilemma, but this may still explain why people instinctively defect more as an ongoing interaction is nearing completion.
I said "easy parsing", not "easy implementation". "Computationally cheap" is probably a better term.

Everything is trivial with a parser generator. This is besides the point.
Show HN: Growth is shit? is it worth to spend time on growth hack early?
Continuing work on an online course on React JS, found here: https://www.udemy.com/learn-and-understand-reactjs/?couponCo....

I had some challenges with the course at the started, but refocused my efforts in making sure I was creating a product that a beginning developer could work through and then feel confident to build their own apps. Once the quality content was in place, reviews, revenue, and engagement soared.

Revenue is up over the last two months, and I plan to write a blog post in the next few weeks regarding that topic. In addition, I plan to also release a new course covering React Native in the next week.
First Hermann Zapf in June, now Adrian Frutiger. As a font geek, I am mourning.
What this article leaves out is that sparse coding is most common in neocortex (the wrinkly outside part of your brain). In structures underneath there are a lot of brain cells that fire away all the time: the thalamus, the basal ganglia, the dopamine cells in the midbrain that fire like pacemakers. I've recorded from the cerebellum in deeply anesthetized animals; there is still a lot of spiking going on in there. Presumably the same thing is true for humans. So sparse coding is nifty--and people have made some cool algorithms with it, cf. Cris Rozell's work--but it doesn't mean you're not using your whole brain
I can't prove it, but I imagine we'd be surprised at how few letters they actually get during parts of the election cycle. Depending on your district your congressman may be far more accessible than you think.
Well, you're going to have to sanitize all the testimony to obscure the specifics of race, gender, location, and other social context. In many cases all you'll end up with are an allegation and a denial, as you'll have no way to evaluate the demeanor of the various parties to the case. The fact that we are subject to bias doesn't mean that jettisoning our entire social technology (about how to read people and so on) is automatically going to lead to improved results.
Facebook's “Dislike” Button
I mostly agree with you. I'm using it in the sense that functional programming is closer to declarative programming in saying what must be done and letting the compiler/hardware do it. LISP also easily implements true, declarative programming. It also does a form of it with some domain-specific languages. So, it seems like one of the best compromises.

I recall doing automatic programming research long ago. We got to the 4GL's that automated much of what you want. There were even programs that took requirements put into CASE tools and synthesized simple code to meet them. Eventually we found that we'd have to precisely specify behavior, requirements, and constraints w/ heuristics-driven tools synthesizing the system. Probably led to concept for 5GL's being constraint-programming.

In any case, if you look at all of that, functional programming or 4GL combined with a formal specification language + good QA tools are MUCH EASIER. One person told me you'd have to think like a lawyer to do English precise enough declare an app into existence. While there's even non-technical people cranking out working, readable code in Python and Ocaml. Cleanroom's restrictive method got similar quality out of languages not known for it. I think combining approaches like that is better than declarative approach for the general case w/ DSL's (in LISP etc) being used for declarative programming of specific components (GUI's, database integration).

The constraints and heuristics mean you're always doing more work than mere declarative programming outside simple stuff like SQL.
Mining is the core feature that allows Bitcoin to work without knowing all the parties. Reaching consensus and cryptographically protecting information is not a very hard problem if you know the parties.
AWS Solutions Architect – Associate Level Certification (3 Courses)
https://en.wikipedia.org/wiki/Straw_man
If you are in downtown Austin, this is actually playing at Alamo Drafthouse tonight(9/15).
6 Rules of thumb to build blazing fast web server applications
The key advantage that the blockchain provides is distributed consensus-finding. It's the best known solution to the Byzantine generals problem to date. Pseudonymity is besides the point.
This is some really stupid decision! Even more stupid than adding the stickers! All that we've seen going wrong here and over at reddit with the community-destroying negative voting is coming to Facebook - let the flame wars begin! Trolls are gonna love it, too! Instead, what they had to do is copy Slack's emoji reactions - the most brilliant thing they could've done to improve feedback. Or at least copy BuzzFeed's original reaction approach for the lazy majority.
It might be difficult but it needs a strong, standard lib. I can't remember that many languages that really made it with several competing libraries for the basics. Could go Common LISP approach and do an integration but that would probably be similarly ugly.

A LCD approach with stuff like you suggested might work. Maybe source-to-source translation from one to the other. (shrugs) Still think fragmentation might hold them back.
There is so much wrong with the taking of this view. Instead of looking at the experience of growing up black, the horribly unlevel playing field, the reverberating echos of slavery and broken families. A resonance maintained by the complete disregard of the dominant system.

You point to a metric associated with intelligence only to a standard deviation at best, and say it's the reason? I think your reasoning is a lazy kind of cowardice. You want there to be a simple explanation because you want to believe it's not possible to elevate african americans and therefore you don't have to face the enormous effort that will be required to do so.

Finally, the Jews, Italians, Irish and Chinese were never slaves in america. They lived through terrible poverty as immigrants, but they were never slaves.
Presumably that Will met, and fell in love with, Ariel when he was 26 or thereabouts and she was a 15-year-old schoolgirl at the school where he taught. So saith Wikipedia, anyway.
We agree. Sharing an apartment with roommates is very common in major cities and university areas and that is where roommate problems are most prevalent.

Landlords commonly perform reference checks but individual owners or students looking to fill a room in their current apartment typically don’t have the resources to. Don’t they deserve to know more about their potential roommates before they’re sharing a living room with them?
Not exactly. You still need to solve the origin of money problem. Refer problems with proof-of-stake coins.
If you substitute "all ciphers" with "all known ciphers" and don a tin-foil hat, it works.
You are right that my argument is as strong as the legitimacy of modern IQ tests.
Nixon led the creation of the Environmental Protection Agency, and was instrumental in the normalization of relations with China
No need for UI, just use the scroll wheel while dragging, or shift + scroll while the mouse is hovering a country.
Beyond the information presented, this is really neat to see interactive visualizations with code that can be edited inline.

It reduces the apparent distance between "wow cool visualization" and the code that generated it.

The more people see code regularly, and can connect it with something they understand, the more likely they are to be code fluent.
Unfortunately they probably going to go the way of TT. They never really had a decent enough revenue model IMO. Also annoyed after supporting them through purchasing avatars and a subscription that they still come back asking for more.
How exactly can I use Prolog in Datomic? I only saw Datalog.
I've never actually used Prolog, but like you say, it always seems like a really cool language. That said, I always wondered why it needs to be a language instead of just a library in another language. It seems there are some types of problems that are really well suited to Prolog, but I don't think it necessarily applies to all problems. So why not use another language and then bring in the relational piece as a library? Granted, I think that's what Kanren does in Scheme, but it doesn't really seem to be all that common.

Also, maybe I misunderstand, but doesn't using Prolog limit you to the unification algorithm used? If you wanted to build something like the Cassowary constraint solver in Prolog would it be really easy or would you still need to implement the algorithm from scratch?
The system you're describing is not distributed, though. There has to be some centralized arbiter of which keys are considered valid members of the system. This list of keys is vetted and is kept up to date on all end systems.

It doesn't work without that centralized arbiter because then you'd end up with situations where each party has their own separate list of other parties that they consider vetted, and this falls out of sync, and the blockchain completely falls apart as there is no longer consensus on whether any given block is valid or not.

I will agree that the banks can probably come up with a centralized arbiter that works for them, and thus they don't need blockchain technology, but that isn't a counter to my assertion that the blockchain's key innovation is that it allows decentralization in a way that was never before possible.
Like/dislike is not structured feedback. The most awkward situation is when people "like" some tragic article. In this case, Reddit and HN do better - you up/down vote, you don't "like". Instead, they should've added multiple "reactions". Like/dislike, agree/disagree, boost up/down, etc. Of course, the equivalent of "upvoting" possibly is "sharing", but often you don't want to pollute your timeline, just to boost the visibility. I think Facebook is making things worse, not better.
I'll don't buy this BS about the block chain, when the power to verify it centralizes power in the hands of those that can afford the most computing resources.
Facebook Creating a Dislike Button
It does basic note taking and checklists and things pretty well (better than Evernote in some ways), but a frequent use case is creating a notebook with stuff in it (a mix of clipped web pages, notes, maybe documents), and then sharing it with someone. Also, it needs to be searchable. It's that part that OneNote seems weaker at.
It's hard to sabotage peace talks if there isn't a war on already. I'm not trying to rehabilitate his machinations and policies about Vietnam, but speculating on what sort of President he might have been if the US hadn't been at war to begin with. Mainly I'm interested in the contrast between the general radicalism of the late 60s and the institutional conservatism of today, rather than wanting to argue that Nixon was a great guy.
That could be interesting.

Won't the blockchain get very large very fast on that scale though? (If I remember my BC theory right the chain remembers all past transactions, correct?).

Also - I'm assuming they'll essentially start a new system independent of BC. How will the initial blocks be divided?
Huh. I wonder if mutations in these genes are responsible for DSPD https://en.wikipedia.org/wiki/Delayed_sleep_phase_disorder and other "night owl" vs "morning lark" phenotypes.
I don't have a plan of action. If my argument is sound and we accept it then the implications for what that would mean for public policy and society are not exactly nice or easy to think about.

I do know that we predicate school funding and a lot of other education/social policies on "bridging the achievement gap" and maybe this should be re-examined.
On the other hand, it's not a whole lot of fun to google a question and get a thread that's mostly filled with arguments about the validity of the question itself over and over again. I've often wondered why they don't sequester the meta-discussions in a similar fashion as wikipedia.