skysight-inc/HackerNews huggingface dataset:
To expand on the bus route thing: City of Houston just completed a complete revamp of their routes. It would be interesting to see how much, if any, that impacted uber's use in areas that should in fact have better (more direct) service.

Second item is DUI rates before and after Uber comes to town. For that matter how much surge pricing happens during major events such as concerts, football games, etc where people may perceive they must drive. Combine that with congestion data and perhaps uber can propose a partnership with the local metro to pick people up outside of the deepest traffic area by doing a bus/rail hop first.

For instance Houston has light rail from our sporting venues to park and ride lots. If you can group people going to the same neighborhood it's possible to shift congestion and make the last mile cheaper for riders and more environmentally friendly to boot.

You also have major events where really no one should be driving but they are so data is gathered: hurricanes, ice storms, blizzards and so on. In Houston we have regular flooding and it would be interesting to see where reroutes happen due to deep water and it would be very useful to have drivers marking flooded spots so it can be shared back to other drivers via Waze/Google Maps and maybe even CoH fire and police.

I could easily see an autonomous car on the side of the road with an led bar in its back window or on its roof warning that water is 12" past this point. Many of the worst spots have machine vision readable flood gauges but even for those that don't it may be possible to gather surface elevation from the Google maps car since they have such accurate GPS, and that data doesn't change often.

In fact one could see Uber / Google subleasing a few of those cars to HPD just for the purpose of sending them out to gather data (including video) on flooded intersections so police could spend their attention elsewhere. And of course so they'll know if someone does flood themselves out anyway by driving past the car and then stalling. Autonomous cars already track object distance and speed of vehicles in their view.
This is pretty much the norm for any of the busy national parks. 90% of visitors never leave the roads and a few adjacent attractions and 90% of the rest don't get more than a 1/2 mile from the road. Even in places like Yosemite, you can pretty quickly get away from almost everyone surprisingly quickly.
Manufacturers don't care about whether end-users have the ability to install stuff like OpenWRT on their products, so if the easiest way to comply with the regulations is to lock them down altogether they'll do it. It's the users who lose out, and they're not the ones who are designing the products in the first place.
Responvie lightbox with VideoJS. SublimeVideo alternative
Basically says big data = three Vs.

Volume - you have too much data,
Velocity - it's coming at you too fast,
Variety - it's coming from too many different places,

But then he goes on to talk about specifics and gets strangely cut off.
No this is not my conclusion. The reason I specifically talked about disgust, as opposed to the context of good fragrance in the previous comment, is that it specifically is a scientific conclusion, read in the works of Steven Pinker and Paul Bloom among others.

The debate is whether emotion is independent of reason, and both are pretext under consiousness, so you are sidetracking.
The Youtube app on Android is able to be minimized and will continue to play. However, it does not work on iOS.
Show HN: Combinatorics.js – Combinatorics JavaScript Library
3 Free Resources to Learn Blockchain Technology
Yes, and the cheapest way to be compliant with that is to put the wifi chips in its own locked box, separate from the rest of the phone. There are several chips available right now, like the ath9k series, that already work like this. This issue really is a tempest in a teapot.
And when someone proposes a viable technology that could actually work the way Reed contemplates, we can and should review these kinds of regulations.

Right now, today, in the real world, it doesn't matter whether the phenomenon we commonly call interference is a property of radio waves or a property of the receivers we use or the will of benevolent aliens watching us in their lab. The fact is that it causes communications systems not to work properly.
TF;DV ("Too Flakey; Didn't View") version:

After an intro ad, Stonebreaker gives the semi-common "3 V's" definition of big data of "volume, velocity, variety" popularized by META/Gartner [0]. And then he talks briefly about using big data for integration from many data sources, and then he concludes by relaying the interest that the Miller Beer company expressed in knowing the relationship between El Nino / temperature / precipitation and sales of beer.

[0] https://en.wikipedia.org/wiki/Big_data#Definition
I think it's hard for those without these problems to truly understand the weight of getting out from underneath them. For example from the outside it's easy to say how someone who is poor could do something to lift themselves out of that state, but this wouldn't account for all the things working against someone who is poor.

Naive might be a strong word for it, but it's always easy to say someone else's problems are good problems to have, or they have it easier, but as long as we're putting them on a spectrum and assigning value to their experience, we're not accounting for the struggle itself. It's not the value of the struggle that matters, it's that we all have struggles, and being able to find support for when we are struggling makes a HUGE quality of life difference.

So many people in today's world want to deny others this experience, "you don't/didn't have it that hard, what are you complaining about. Man Up. Stop being a pussy... You're rich, what's the problem..." etc
I don't think it's just this field.

Statistics are routinely abused in nearly every field of science, alas.

The OP mentions findings about how forcing pre-registration on clicnicaltrials.gov seems to change results. Those are, of course, medical research studies. A discussion of those findings regarding pre-registration was on HN 10 days ago. https://news.ycombinator.com/item?id=10080680

I do not think it is conscious 'fraud' exactly. Sloppy statistics have just become routinized in standard scientific research in many fields. And yes, that sloppiness almost always errs in the direction of making it easier to show positive results, of course. But I don't think the researchers realize they are doing something wrong exactly, it's just totally routinized.
Wish there was a bit more depth and detail to this. These high-cbt strains sound interesting all right, but is there research to support their effectiveness? IE, randomized controlled trials?

It is easy to demonize the status quo, and it is certainly true that there are powerful industries and lobbies whose interests could be threatened by cannabis, but it is a cheap argument to use, because of course the cannabis industry also has its own interests in mind.

PS. I live in WA state, and I'm all for legalized marijuana, but I dislike this sort of lazy intellectual presentation that uses emotional appeals and anecdotes instead of diving down a bit deeper.
The one that requested call metadata from all Verizon (business?) customers.
Mining is always 100% efficient. If you don't understand that, then you don't understand how a blockchain works. The purpose of mining is specifically to waste something of value. Without destroying value, there is nothing to keep the network anchored to 'truth'.

How much energy is needed to be burned? Precisely as much as is needed to combat 'spam' (both in the form of speculation and block-space consumption).

The only 'alternative' that has been pitched is the ironically named Proof of Stake. PoS has many, many problems (Andrew Poelstra itemizes many of them) not least of which is that they will degenerate into Work-based attacks/mining-strategies.

Thus far, miners have been reluctant to switch to an alternate chain. It is probably a very tall claim that this will ever happen at this point. SMTP was/is a terrible protocol, but the advantages of the network effect sustained its success. This effect is particularly pronounced in Bitcoin, mostly due to the way that blockchains work. The longest chain will almost always secure the most 'faith'.
It's tied to the objective-c runtime to the same extent that other dynamic languages e.g. Ruby, are tied to their runtimes. That hasn't stopped them.

I agree that the poor state of GNUStep and indeed the fact that it even tries to be a compatibility layer discourages users.

However objective-c is not tied to GNUStep. And this line of reasoning is irrelevant to swift.

Neither swift nor its standard library are tied to OSX at all. Moreover the applications for which a Linux versions will be useful, i.e. servers, will not be handicapped by the lack of access to Cocoa.
I never knew apologists had a negative connotation. What is the concern with apologists?
They aren't buzzwords, they are simple ideas and don't have to be referred to with those terms if they are triggering you. The OP just wants interactive, flexible systems to learn math from, which I wholeheartedly agree with.
We've become used to such accidents, and usually blame them on the driver.

In the event of a driverless car killing someone, the manufacturer will have to shoulder the blame; and Google/Uber/etc are much more attractive targets for lawsuits than regular drivers are.
Objective C plays nicely with any C and C++
I love Austin. I was referring to folks outside of Austin.
Paleo Doodles
The monads that were harder for me to understand while learning Haskell had quite plain names like "State" and "Continuation". I don't think alternative naming would have helped.

By the way, while I'm not sure the monad concept would be useful for all languages, I believe monoid really should become common parlance. It's such a simple and useful idea.
Based on one of his recent tweets, he hasn't developed the ability to deal with assholes or similar. Even with $1.5 billion he finds it difficult to deal with them, and that kind of wealth and power confers every advantage over 99.9-% of assholes on the planet one could ever ask for.

I'd guess there's a much deeper issue at play. Crippling social anxiety, an overly extreme need to be liked, etc. Then combined with his semi-fame, he's finding it difficult to create again, out of fear of rejection / mockery / jerks. The solution is to stop caring so much about what other people think (it's how people like John Carmack survive it), getting to that point appears to be his challenge.
if the teams creating the software was not effective at producing fixes to the software, the black team's efforts at catching bugs would have been for naught. So the silent heroes are actually the fixers.
> The cross product only exists in three dimensions

While true, the Wedge product is a useful concept that generalizes a cross product to arbitrary dimensions and is used in multivariable calculus for proving various integral theorems in high dimension. Here, generalized Stokes theorems apply despite the cross product not being defined. Admittedly, it isn't really a map on the vector space, but the fact that Stokes theorems still hold makes it pretty darn useful to me.
Are you sure about the second point? I use Uber on a Nexus 5 and it works fine in Shanghai, without requiring VPN. IIRC Uber now uses Baidu maps in China.
Confirmation times are a feature, not a bug. 10 minutes secures a lot of energy in block, and drastically reduces forking. If you believe it is a bug, there are many solutions on the horizon, most of which create a market for settlement latency. Lightning network is the most promising.
Why do people keep bringing thinks like OpenWRT into this? The regulations here are about the firmware in the radio components themselves, not any particular firmware running on a specific end user device that happens to include such a component.

The firmware running on the end user device and provided by its manufacturer probably doesn't even have access to the firmware running on the radio component in many cases, in which case the kind of regulations we're talking about would make no difference at all to that device.

If the main device firmware does have access to reconfigure the radio component, these regulations are a good thing, because it means you can afford to let end users swap out the main device firmware without risking them breaking the radio with adverse consequences for everyone else nearby. If you didn't have that safeguard, the only safe thing to do would be to lock down the entire device in exactly the way you're describing.

You are arguing against the regulatory framework that makes your desired outcome practical to achieve.
Their usage in Haskell/OCaml etc is precisely faithful to their category theoretic definitions as can be in a general purpose language.

This debate about naming monads is pretty tiresome after so many years, if one called it "computation builder" it wouldn't change their structure or convey any notion of the laws any better than term monad. A monad at it's core is a set of algebraic relations.
This never made sense to me. The bigger the company, the less valuable the options or stock are (because the value is known - you might as well take an equivalent amount of cash, because the upside is capped). On the other hand, at a tiny company where the options are worthless, you can get way more options more easily. You can actually negotiate for points of the total ownership of the company. Can you ask for 0.01% of Google if you interview there?

If you don't want risk, why would you work at a startup? If you aren't betting on a big exit, why wouldn't you just work at a company like Google or Facebook where your total (guaranteed, risk free) compensation would be far greater?

At my last startup I negotiated for a lower salary and as much equity as I could get, and I asked for more equity with every promotion. Those were the best decisions I ever made. I want to work at a startup because I want more risk, not less.
I would be _extremely_ happy if I had a business with 1% of mainland Chinese as customers.
Hi, yeah, sure, effective communication requires simplification.

A few points got me concerned in the slides - namely, concerning emphasizing how easy this makes to change things. I would consider that it is not a positive thing that adding a library is cheap and easy, and I find that component versioning can be bypassed even more so.

It all sounds like grievous local greedy optimization without a view of the entire lifecycle of the codebase. The slides say change is the only constant. I would claim that unless the change is backed by good and strong architecture - which throwing all architectural firewalls away does not support - then the end result will be a mess of spaghetti the older the codebase gets.

But, I may just be too much set in my ways of coding and I respect the fact that these may be non-issues in the particular domain these slides address.
Nope. Our executives and risk management group are very much against open source. We have to jump through hoops to use any open source software. Never mind that 90% of all vendor solutions use open source. Sigh.
In general Marketing is a series of experiments to find what works and doesn't work. So marketing is always about learning and failing quickly to find the successful campaigns and channels.

As for your specific circumstances, it doesn't sound like your marketing outright blows as you are getting traffic, so I'd look more to one of the following:

1. You don't have a good product market fit. Your product value proposition might even be spot on, but the product itself may fail to fulfill the need.

2. You are marketing to the wrong group of people, so while you get traffic your conversions are horrid. I have seen this when people are using terms or a value proposition that a broad group cares about but only a small sub-group actually purchases or controls the funds.

Have you followed up with visitors and figured out why they aren't converting? Have you done trails to get feedback? Have you done 1 or more surveys to get feedback? Have you talked to people, called them? Offered them something small in return for honest feedback? Have you gone and sat with a potential client and walked them through the product to get feedback? etc

Not sure what your goals are, but I think you have to earn the right to quit so you can learn from the situation. If you haven't found out why it is failing then you haven't earned that right, as you haven't learned what not to do the next time.
Due to the extremely dynamic nature of Ruby, I'm not aware of any linter that can catch misspellings when interacting with class or instance variables, dynamically-defined methods, etc.

It's an entirely different level of statically-verifiable correctness.
I am the founder of http://brainturk.com . I would like to talk to you on this . What's your email ?
> If we know these numbers (and nothing else), we can linearly approximate the values of a function near a particular point, with at most quadratic error.

Ignoring the fact that you need the function's values actually at the particular point in question, you do in fact need to know something else: you need to know that the function in question has sufficient regularity (enough smoothness) to allow an application of Taylor's theorem.
This article from The Economist a while back [1] gives what seems to be a pretty good rundown of Argentina's rather sad economic and political history.

[1] http://www.economist.com/news/briefing/21596582-one-hundred-...
It's been at least a few months.
It was flagged by users.
What if instead of coopting the tech, they add their resources to the existing blockchain, making it more robust?
Not giving equity strikes me as a tactical error, because the hurt feelings seem to be worth a lot more to him than the money he now has and apparently isn't interested in. I understand the justification for not doing it, but it seems like he's paying a different price for it now.
You can't prevent resentment, that's up to other people. Whether it's over a billion dollars, or a raise, or a new car, or anything else. The key in most cases is to stop caring so much about what other people think (assuming you're not being an overt jerk to spur the resentment). How highly you value someone's opinion should roughly match how much you value them as part of your life in general; any misalignment of that, will usually cause suffering.

You give it to the Bill & Melinda Gates Foundation. Within reason you could pick a specific project that interests you (education in Sweden, or a specific disease, or clean water in Africa), and they would go after it on your money's behalf. They have the scale and systems in place to do that with large donations.
First: it's nice to give arXiv links to the abstract/metadata page rather than straight to the PDF: http://arxiv.org/abs/1205.2720

Second, this paper is from 2012.

And third, who is this guy? A quick Google search suggests that he's a college dropout who somehow made a big media splash in 2003 after announcing that he had a radical new theory of time, but has had zero impact on the actual physics community. Why is this paper worth our time?
In SF every driver, except for the tiny minority who own a medallion pays the gate fee. Since the medallion licenses a cab to operate 24/7, medallion holders also lease out their medallions if and when they don't use them personally.

The MTA sets the meter rate, the gate fee and both the number and sale/resale price of medallions. It seems it almost doesn't matter how evil or virtuous cab companies are since the system doesn't appear to have much flexibility, room for competition or self-correction.
Comparing Optionals and Null in Swift, Scala, Ceylon and Kotlin
Unfortunately not.
My god, Did you just bring up some memories. In the 90s my buddy Morgan was head of the game lab at Intel. He was a mast of quake, but another factor was that in the 90s broadband was much more scarce. So imagine playing quake on the fastest machines Intel made on the fastest corp network likely available at the time AND being a master of quake. That was Morgan. And he got paid to do it.

I fucking hated playing quake against him. I was ok, but he was amazing. He also would taunt you.

However, my best gaming memories were when we would basically live at Intel for days at a time playing UO across six diff machines simultaneously on that same corp net. No lag. Thanks for triggering that memory.
It does, and I feel I acknowledged that. I just wonder if it says something about our economy as a whole that something so trivial could be so important. I'm a huge fan of the progression toward simplification, represented by Instagram, Twitter, etc. over the incumbents they displaced. I just think the missing piece is how to also provide basic adaptability without sacrificing that core of simplicity.
MARS-500
It can be added to the disallowed certificate store, which takes precedence over any trusted stores.

For example, using the root discussed in the article:

1. Download the root cert from http://ctldl.windowsupdate.com/msdownload/update/v3/static/t... (or save it from the browser's certificate viewer)

2. Open certmgr and import it into 'Untrusted Certificates'.

(This just adds it for the current user's store. Could also import into the computer store by running mmc, adding the Certificates snap-in, and specifying 'Computer account' as the target.)

3. Restart browser. Go to https://certplusrootcag1-test.opentrust.com/ - it should say the certificate is revoked.

This only works for browsers like IE and Chrome, that use the Windows certificate store. Firefox has its own so would have to be done separately.
You made me feel just as narrow sighted, but on a smaller scale (sincere thanks for the insight). However, there are still lots of people who don't eat fast food for dinner. And for that, they are healthier and better looking. Would you feel sorry for the guy complaining that he's fat and ugly whilst chewing on a burger? Aren't our own decisions responsible for who we are? I still don't think he deserves to be pitied.
This comment breaks the HN guidelines. It also shouldn't have been a reply to the top comment. (We detached it from https://news.ycombinator.com/item?id=10140066.)

Please don't post spiteful swipes here.
Can you elaborate a bit on the last sentence? What exactly are the relations and what is the set?
I expect that providing videos (etc.) to show methods and facilitate both replication and identification of methodological errors is going to become a requirement (much as publishing data and placing hypotheses in escrow prior to data collection). So while there may not be much in the way of incentives now... just wait.
The only problem with driverless elevators was how to prevent passengers from being trapped in closing doors. The problems with driverless cars are a bit more difficult.
Yep, and many other countries including the USA. Using geothermal energy to "tap into hot spots" is called "geothermal energy."
I was hoping for at least a mainstream game that was mainly about problem solving, like Portal.