skysight-inc/HackerNews huggingface dataset:
Is it not, in fact, intrinsically 2-dimensional? The enclosing contour that defines the prominence is a 2d entity. I don't know anything about persistent homology.

Maybe by 0-dimensional you mean that the nodes of the "contour tree" from which prominence can be calculated are labelled with scalars, not vectors. But isosurfaces of a scalar function in an arbitrarily high dimension would still be labelled with scalars. I guess that implies that persistent homology can be used with vector-valued data points to assess the topology of a vector field?

Another CS thing that's somewhat similar in flavour is scale space analysis.
Have you considered that one or both parts of your view might be incorrect? Regardless, let's assume that your view is correct.

Did you read my response? I explained why your proposal would still involve people racing to trade in microseconds. I also claimed, but didn't prove that your proposal would reward fast traders to a greater extent than the current system.
What? Teachers love Classroom and why they pay to use. Something does not dominate as quickly as Google has in k12 unless very good. People do not lime change.
My road from academia to driverless cars to startup founder
They are position this for use in script sharing.

You might have a nix shell script, using a bunch of traditional GNU tools which does some "stuff" - you can now consolidate that workload onto a Windows Server.
> $ howmanypeoplearearound

> Specify WiFi adapter (use ifconfig to determine): wlp4s0

> [==================================================] 100% 0s left

> Found no signals, are you sure wlp4s0 supports monitor mode?

Do I need to run airmon first?
it's ok, it's a legitimate question. it's just a bit hard to answer without sounding like I'm victimizing myself because people tend to feel like when enough bad things happen to someone it must partially be their fault. But here is a tldr.

I had a bullshit drug conviction from high school when an underage and unlicensed driver rear-ended my friend and I and he had a small amount of pot in his booksack that I didn't know about. The case took two years and about eight appearances, six or so conflicting testimonials by officers present at the scene, and I was given the maximum penalty possible.

I couldn't get a decent job because of the charge and I was being extorted monthly for money by the government. I had no support from family and ended up taking what I could as far as housing arrangements, leading to me getting robbed about half a dozen times by various roommates over the years for a total of a few thousand dollars.

I was still learning CS in my free time so I was limited to part time minimum wage jobs and had no disposable income.

I developed heart palpitations and visited the ER, but they laughed at me and gave me a bunch of useless crap and scans related to my lungs, didn't look at my heart, then gave me a receipt for a sum that vastly outweighed what I was told I would be expected to pay. I was diagnosed with costochondritis, and amazingly, because I mentioned I had smoked marijuana before in my life, I was also diagnosed with "marijuana abuse". I have not paid this medical bill and I consider the experience insulting and unprofessional.

My sister later developed heart palpitations as well, and when she visited the ER she was also discharged with costochondritis. She also owes a hefty hospital bill now. Neither of us know what is wrong with us and have ~1k of debt to show for it. Neither of us can afford more debt because we look in fear at the debt our mother has yet to pay off.

Without insurance or a health care credit card with high interest rates, you're usually expected to pay up front for health care. When I had these dental emergencies and blood infections, I never had enough money up front for the healthcare due to the circumstances described above, and I was not going to rack up another 1k in the ER just to get antibiotics. So it always ended up being only feasible to source them through both friends (who shouldn't have leftover antibiotics) and actual antibiotic distributors.
What makes you think that? Win 7 is simple to activate using Daz loader etc. my theory is that Win XP is the last version of Windows that will run comfortably on true toaster <1GB RAM computers.
You are free to use something else. Google does some things better so people use. Gmail Google solved spam and unlimited storage and won. We should encourage companies to do things better.

Look at Google Photos now being far better so winning. This is how it is suppose to work.
Every "strong" country today became strong via theft, protectionism and mercantilism. And once a country became strong, they expanded/colonized/etc and then supported "free" trade.

There isn't a greater example of this than the US. We stole all kinds of tech from the british/europe and then protected our industries.

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

It's how our nascent industries developed in the US. Without protectionism, all our industries would have been dominated by european companies.
It would be interesting to see if total read and recommendation percentages are higher / lower on the members-only content.
I read a similar things a few weeks ago. They were saying that the U.S. (government through laws and legal system) centered on "fairness" up until recently. Sometime after WWII the focus changed to Economics and growth. I'm guessing it was saying this is the cause of crazy inequality and "the jobless recovery."

I'm not sure I buy all of it (the U.S. wasn't really a world power prior to the world wars, so they'd be dismissing that and other gains if it was their whole premise), but like this article, something to think about.
Ask HN: Should i take this programming test
I interviewed with a company and im going into the second round. They asked me to do a programming test. They say it should not take more than 3 or 4 hours. I have many years as a software engineer and to be honest im very opposed to programming tests. Also i dont think this can be done i 4 hours. Can i get some feedback what steps i should take.

They wrote....
Please write an
application to showcase your skills. Use your creativity to develop a compelling web application that will allow customers to view a list of products and add them to their shopping cart.

The MVP should include the ability for a user to log in, view products and add products to their cart. The cart information should be persisted to MSSQL.

We would like the app to be built using C# and .NET. Feel free to use web forms, MVC, or Web API as well as server side 3rd party libraries and JavaScript frameworks/libraries.

You can spend as little or as much time as you would like on this project however we think 3 - 4 hours is reasonable and you can factor that into your design.

Please submit the full source code along with instructions to build and run your application.
what about about mac address randomization?????
The nations mentioned are some of the most advanced in the world, and their lower-than-world-average GDP growth is being used to show that "it's not all about wealth". I don't think this article makes a very good point.
Hell the icon of "free trade and capitalism" developed under protectionism.

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

Every nation needs protectionism to help its industries. It's only when you have strong stable industries/companies that you become anti-protectionism because you want your native companies to have access to foreign markets.
Can you elaborate on which part of the restore process was slow (downloading the files themselves or something else)?
I can relate as I always feel very fatigued mentally after a long drive, especially if it involves a route I am not familiar with, and there is lots of stop and go traffic.
It's kinda ironic that I bought TIS-100 when it first came out, played for a few hours, lost interest, and never really touched it since. But then, later I found great fun writing actual x86-64 assembler.
Totally agree in consumer space. School docs, team roosters, anything was MS forever and basically overnight I only get personal stuff in Google Apps. But work stuff still dominated by MS but some slight cracks.

Personally prefer Google Apps now.

Btw, kids school they have to use Google as workflow including plagiarism check all based on Google Apps. Pretty amazing and had thought MS Office monopoly unbreakable.
FedEx hit as NSA-linked ransomware spreads around the world
WiMax is why sprint didn't have an LTE network for so long, my market (Seattle) didn't get LTE until Q2 2013 in any form, and it wasn't even fully turned up until like Q4 2014, if not into early 2015.

I don't have a dollar estimate though. I know that having to do site development for all those non-shared sites, was very very expensive. I also know that Sprint made other network upgrades too in that time.

I disagree with your assertion however that GSM is superior to CDMA - GSM has the advantage of being more extensible, because its a collection of loosely coupled network elements working in tandem, but in terms of network construction CDMA is much more forgiving for poor deployment engineering, and offers (in my opinion) much better audio quality compared to GSM. CDMA also has one more advantage for the future, you can build a market out on it, and put all the sites on a single CDMA carrier (frequency), allowing you to more aggressively reallocate your spectrum to other uses (like LTE).

The reasons Sprints LTE network sucks is spectrum, in most of their markets, they don't have enough spectrum in the right band (1900 MHz PCS Block) to cram enough bandwidth into a macro site, meaning you have to do things like densification, which Sprint is very well positioned for with spectrum, but poorly positioned for in customer counts - its this math that really leads me to believe that there is no room for 4 competitive national networks, there are just not enough customers to pay the bills and keep the lights on.
Socialist critics include George Orwell (known for his criticism of totalitarian Socialism in Animal Farm), economist I.I Rubin, the anarchists which the USSR suppressed, Luxemburg, Bordiga, Bookchin, and later on Hobsbawm, Trotsky (to some extent), Sylvia Pankhurt (and various other feminists) etc.
Why no pillows on the ISS? Weight? Fear of being smothered if it floats around and covers your nose & mouth? Can't be washed there?
After reading this article, I have no idea about how Google Chrome gives any advantages over paper and pencils. The gist of the article is that it allows students to collaborate.

What I don't understand is how the technology is actually being used to extend education.

For example, Wikipedia is a dynamic encyclopaedia. Dictionary.com is an online dictionary/thesaurus. I can obtain photos through a Google search. I can find articles by searching for them... so, what does Google Chrome actually provide?

I often think back to Alexander the Great. He was taught by Aristotle. What was his teaching technique? It was about a way of thinking, not the vehicle for teaching. Mac/PC/Chromebook. They all offer the same basic opportunities to online resources. The difference (superficially) is cost and admin.

My children still generate real world artefacts (eg. Paintings/posters/models). These can't be marked or submitted electronically. This means that it can't be about aggregating student work, unless you only allow electronic work, which would be crazy.

We use a tool called seesaw. As a parent, it gives me warm and fuzzies seeing my kids sitting with other kids in a classroom (it's being used as Facebook for classrooms). I never get copies of homework sheets or a good idea of the actual work being done. This is an example of how technology can be used in all of the wrong ways (technology for technology's sake).

So I'm back to my original question. Other than cheap cost and simple integration of basic office tools, how does this product actually help students?

Disclaimer: I spent several years developing an electronic education system. I asked myself this same question often!
This has been discussed in many posts already. Main discussion: https://news.ycombinator.com/item?id=14326439
Classroom is paid for and not ad driven.
Round Two: WannaCry Ransomware That Struck the Globe Is Back
> 1. non HFT traders are the fundamental players in the market, without them, HFT traders wouldn't exist. The exchange itself wouldn't exist. The exchange's objective is to connect non HFT traders.

Sure: there are buyers, sellers and market makers. Naturally the market exists for buyers and sellers. Market makers can't exist without anyone to make a market for, and buyers and sellers can't exist without a way to find each other (more generally, the market requires liquidity to be healthy). The market is an ecosystem.

Market makers used to make markets in timescales that required me to wait minutes before I could complete an order. Now I can wait less than a second. So this brings us full circle back to my question: if they benefit the market at sub-second granularity, and you can't demonstrate a harm in sub-millisecond granularity, why do I want them to stop?

> 2. subsecond liquidity is useful because non-HFT traders want their orders to be done as fast as possible: they want to their orders to feel immediate.

Yep, I'm with you there.

> 3. non HFT traders do not care about submillisecond liquidity because the timeframes in which they invest is much larger.

And now you've lost me again; I am an active algotrader, and I don't work in HFT timescales, but I appreciate the liquidity benefits I get from HFT all the same because I do trade in timescales that make it meaningful.

Furthermore, I can't really consciously think productively in sub-second or sub-millisecond resolution.

Retail investors who trade by hand don't need sub-second or sub-millisecond resolution. If you have an argument that both are harmful, make that argument. If you have an argument that sub-millisecond is harmful, make that argument. But so far you're saying it's bad because...people don't need it, which is odd. I don't really try to stop people from doing things that I either don't care or about or which don't harm me. There's a lot of that in the world.

> 4. submillisecond liquidity is harmful because it incentivize HFT firms to stupidly race to reach the exchange without adding any value for the non HFT traders, while at some point the exchange has to say "we received these 2 orders at the same time".

I'm still not following you, because you're not demonstrating harm here. It's harmful because it's stupid? Why is it stupid? Who can deem it to be stupid? Even if it is stupid, what makes it actually harmful to anyone?

As to your last point, what do you think is more likely - timestamp collisions at second, sub-second or sub-millisecond resolution? Frankly your point here is an argument for greater resolution, no lesser.
Classroom is NOT free for schools.
Cyberattack on the Bundestag: Merkel and the Fancy Bear – ZEIT ONLINE
What kind of WiFi chip do you have? Make sure it supports monitor mode (if should list "monitor" when running `iw list`). Although, for reasons I don't understand, this may not be sufficient as my laptop built-in wifi does not see signals although plugging in the TL-WN722N allows it to work just fine.
I did the same until Backblaze lost all data from one of my drives, which they didn't alert me about and I discovered abruptly attempting to restore after the physical drive died. Dealing with their customer support is very insecure (sharing your secret in plain text) and they still weren't able to recover the files. I don't see myself using or recommending it to anyone again.
45% off currently.

Was ~$19 AUD ($14 USD)
All good points. The only thing I feel I can add that addresses the strangeness in a general way are these quotes:

“There are those that look at things the way they are, and ask why? I dream of things that never were, and ask why not?” - Robert F. Kennedy

“The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” - George Bernard Shaw

“The sweet spot is in good ideas that seem like bad ideas.” - Peter Theil

“Pursue the good ideas that, for some reason, others won't.” - Chris Dixon

“It's actually pretty easy to be contrarian. It's hard to be contrarian and right.” - Reid Hoffman
Should I take this programming test to get the next interview round?
I was asked to take this take home programming test to get to the second round of my interviews. Im in two minds. Im actually against programming tests altogether.

I have 10 years experience and i think this will take more than 4 hours. What do you think ?
What would you do ?

Please write a application to showcase your skills. Use your creativity to develop a compelling web application that will allow customers to view a list of products and add them to their shopping cart.

The MVP should include the ability for a user to log in, view products and add products to their cart. The cart information should be persisted to MSSQL.

We would like the app to be built using C# and .NET. Feel free to use web forms, MVC, or Web API as well as server side 3rd party libraries and JavaScript frameworks/libraries.

You can spend as little or as much time as you would like on this project however we think 3 - 4 hours is reasonable and you can factor that into your design.

Please submit the full source code along with instructions to build and run your application.
1.3 TB deduplicating & compressing down to 2.75 GB seems way too good to be true. Is there something weird about your data that leads to this level of compression?
It's the "if at all possible" part that is not easy for most job applicants. This is probably only marginally easier even for HN users with a higher chance of being in white hot job markets.
Looking at wikipedia's info on a certain kisrhombille tiling https://en.m.wikipedia.org/wiki/3-6_kisrhombille

I think this is relevant https://blogs.scientificamerican.com/roots-of-unity/the-worl...
Oh interesting, I did not know that. I have heard that the US government has a lot of VMS systems. If that's true then this alone would make sense for HP to fund Itanium to some extent.
Maybe she was trying to commit suicide, but didn't do it soon enough.
> Obviously you have free time and that's great, but that's time to do not-work, not other work, and that's obvious and reasonable to the vast majority of employees, and it makes a lot of sense that prohibiting it is the default.

Wow. So your point is that, because you like doing non-work on your own time, everybody should be prohibited from doing work?

> The fact that we work in a field where your hobby might quite often be productive work to the extent that it could compete with your day job is an extreme privilege and is to be treated as such.

Holy shit, seriously? I seriously have to ask my employer permission to have a hobby because the hobby might be lucrative? I have a hard time believing you actually hold these opinions.

My employer isn't the one who made my hobby "a privilege". My hobby might be a privilege, but I'm sure as hell not going to ask my employer whether they'll allow me to practice it.

It's not a privilege, by the way, because it's a hobby. At most, the "privilege" is the fact that people will pay for it, but it's the same for any person who actually enjoys the field they work in.
For iPhones this only happens when un-associated [1] so this script will probably underestimate the count in public spaces. Although, I'm not sure whether the randomization includes the OUI?

[1] http://papers.mathyvanhoef.com/asiaccs2016.pdf
Can you share the link?
Thankfully you now have organisations like GoG and The Humble Bundle finally doing something for DRM-free media.
I assume drivers for scanners... but yes, if you underfund a healthcare system (remember half the cost of the US system for better outcomes) and constantly demand "efficiency savings" (and cancel long term Microsoft support contract) managers will cut IT before frontline services.
Nah, the Internet is an essential service. (Don't believe me, don't use it for ten years and report back to me.) The provision also lacks meaningful competition in many areas, including this one. This is exactly where regulators get involved.
Sadly, the malware author(s) have updated their code and are now spreading a variant without the "kill-switch" domain check: https://motherboard.vice.com/en_us/article/round-two-wannacr...

However, MalwareTech's sinkhole intervention has bought enough time for patches to be pushed out, so at this point it is absolutely imperative that everyone apply these patches as soon as possible.
I used to use Crashplan too. The Java client brought my rMBP to a halt when it spun up though. It made the computer practically unusable.
Writing "this is a contract of adhesion" basically means "we gave this contract to the applicant and asked them to take it or leave it".

A court will be much more favorable to the applicant, then, because presenting them with a contract they have little power over is something courts generally don't like, as it is unjust.

Asking the employer to write "this is a contract of adhesion" basically means "oh, you're screwing me over? Can you please write that this is a screwing-over contract on it?".
So do I - I hope they study the history of countries that were the victims of Marxist revolutions, and come to recognise it for the monstrous evil that it is.

Communists killed an order of magnitude more people than the Fascists did. The Khmer Rouge killed around a quarter of their entire population.

As well as Marx, interested people should read Mises as well, and decide for themselves which approach is the moral one:

https://mises.org/library/liberalism-classical-tradition
An unlisted con of Backblaze is that they delete all external drives if not plugged in for at least 6 consecutive hours every 30 days. It can be a huge pain if you travel regularly or otherwise don't want to leave your computer on all night.
Huh, I would suspect that in modern times English is widely taught at schools all over the world, unless I am horribly mistaken. The quality of teaching is quite another issue and it's usually lacking - to which I can testify from my own experiences with post-Soviet secondary education system. Regardless, I am not starting a grammar crusade here, more like making a small remark.
Fascinating! I wonder if they can move the tusk fast enough to cause cavitation, which could stun the fish, making it easier to catch.
Yes, I did use it incorrectly.

But they were priced like a high-tier carrier, I was their customer at the time (and worked in the telecom industry), and while you got unlimited Direct Connect (and they also had plans for free incoming) you paid significantly more for it - but you also got better customer service too (something which Sprint badly munged in the merger). Also, pretty much every carrier in 2004-7 had free mobile to mobile minutes, so I don't think the free calling thing as big as you might make it out to be - the selling point of direct connect was that it was push to talk, and not a phone call.

The other thing I'll note, having been in over 1000 cell sites for each of the carriers, the Nextel sites were 'gold plated' build outs, they were very clearly not built on a budget (almost all indoor sites (mostly in andrews shelters), most sites had a generator on site, much more extensive grounding, higher performance power systems, over provisioned power and backhaul for future expansion) - the only other carrier that comes close to this is Verizon.

https://blogs.wsj.com/deals/2007/10/09/sprint-nextel-anatomy...
https://www.scribd.com/doc/2621922/Sprint-Nextel-Merger-Anal...