skysight-inc/HackerNews huggingface dataset:
For better or for worse, tech is being forced into classrooms by textbook companies. At least this project emphasizes students working on good old complete assignments, rather than tiny bite-sized activities. It is also free, rather than $100 per student per year/semester.

Computers are okay at deciding if an answer is correct, but they are not good tutors. Teachers can use Free Math to find the gems in their students work that demonstrate their misunderstanding. Currently there is no way for them to process all of the data and work produced by their students every day and have access to this granularity of information.

I considered having an app that would take pictures of student work, but OCR just seemed unrealistic for math. Bad handwriting and symbol ambiguity are almost guaranteed to make any automated transcription of math work buggy. Unlike with natural language, which you can produce on your approximate mobile keyboard, there is no way to auto-correct a symbol or number based on the context.
True, Amazon tends to pay the minimum that the market allows, and people are willing to accept work for that pay, but they also have high turnover, and people also quit in droves.

It's rational for them, as a company, to want to reduce costs by keeping wages low, but I don't believe the labor market agrees with it so much as tolerates it. I'm also not certain they couldn't afford a few dollars more an hour for full time employees (in whom, it's assumed, they want to make a long-term investment), rather, that they simply have a culture of being as cheap about everything as possible.

But this attitude (referred to as "frugality" but in practice it's just cheapness) has negative effects in terms of employee morale, cultural investment, and labor quality that Amazon has apparently decided aren't worth improving.
I would have loved to have cameras like that when someone chucked a rock at me in Milwaukee back in 2005.

Another thing that would be handy would be the ability to quickly transfer video to my phone via Wi-Fi.
I think what GP is saying is that he/she finds smalltalk less awkward at the dinner table compared to other settings, or maybe that less smalltalk is needed before going deeper when there's dinner involved. Which is understandable because food serves as a great icebreaker as well as a natural topic of conversation.
Couple of queries if anyone happens to know:

- Would existing employees with stock options be allowed to sell or the ones with RSU's are also eligible?

- Would ex employees be eligible too?
I think this article is best explained as a veiled advertisement of Wolfenstein.
It sucks by design compared to current markets and our job functional areas. Back in the 70s it was absolutely awesome pay in a region that wasn’t terribly expensive, but when the top n% of intelligence community engineers could easily go to a Big Tech company paying twice or three times as much it’s factors like ideology, mismatch of skills, or family that keep people in these jobs. In many other areas of government jobs, private sector pay is abysmal and the government jobs attract the best and brightest.

In my indirect experience with Lockheed, their pay wasn’t that much better than being federal (they’re still a huge federal contractor and aren’t exactly boutique). It seems like a lot when you’re used to $80-90k as a senior engineer though for years to bump into $110k on a whim (this is without being particularly special or niche, the over-funded “cyber” contracts get anyone that can read and write shellcode $140k+ which is a ton of people at NSA).

The much bigger problem hitting defense as a whole is that smaller contractors that specialized in being nimble and elite are basically being driven out of business due to federal contracting trend shifts post-sequester. Myself and many others have permanently left the IC out of exasperation with contractors now getting oftentimes less than their federal counterparts and a severe drought of technologically interesting contracts that make business sense.
I guess baby Rudin (or Hubbard & Hubbard for something simpler) in the analysis department; and Halmos (or Axler) in the linear algebra department.

This is, essentially, Math 55. All 4 books have been used at different stages in this famous course.
It wouldn't surprise me one bit. I have an extension that displays the tags that FB assigns to each photo. It detects emotions, environmental features, on and on. Not very hard to strategize with all that information and combining whatever else they know about you (what you "like", etc).
Viability of finding contract work for a team?
I myself have a background mainly in Java development but have been learning node.js, along with functional programming, I myself am Latino so, although I'm from the US, I have had a connection my whole life to a Latin American country where I still have family and have lately developed relationships with some developers there who have the skillset I'm interested in. I'm not trying to do some outsource business where I am some sales guy finding work and giving it to some offshore team but rather my idea is that I could possibly find contract work where I work partly as a developer and partly help manage the work with my team. Living near the bay area, I'm able to meet with companies there in person as well.. sorry if all this is too much into but basically I'm wondering if this sort of arrangement is one that is potentially viable, I'm asking mainly because I don't know anyone personally who has done this sort of thing, all the developers I know just work for companies their whole careers and aren't entreprenuial at all. Also I realize the bar would be high in terms of proving competency, etc, so I'm fine with that and ready to meet that challenge when it comes time to try this but mainly I'm not sure if this is something many companies would be open to?
Interesting. Admittedly, I haven't ever used the iPad Pro/Apple Pencil. In my personal experience, it just never felt great using most touch screens. Most styluses feel too heavy and slip too much on glossy tablet screens so it feels ill-suited to writing small stuff quickly. On a Surface Pro + whatever the Microsoft stylus is called, I find myself writing way too large and then having to constantly scroll down in order to comfortably fit things on the page. Also, all the software I've interacted with is awkward when it comes to grouping symbols so that's always an annoyance to me.
Yeah really. I want my 5 minutes back.
My understanding is that the reason the US doesn't have better rail service is because the auto industry lobbies the government to direct subsidies toward roads rather than railways. I've seen many cities wanting to improve commuter rail services, but until we get rid of the auto industry's influence, this is an uphill battle.
> Do you actually believe that every single problem can be solved by voting?

I am not sure why you keep assuming my own personal opinions about voting, democracy, etc when I have not bothered to share any. I have merely pointed out that his update to the essay seems to muddle the point made in the original essay -- and that I am having trouble parsing it.

You parse the update to his essay as "voting doesn't matter for the issues that concern him". I agree -- that is what he seems to be saying in the edit.

How do you parse his original statement: "extension of franchise to women has rendered the notion of capitalist democracy into an oxymoron". Assuming he cares about capitalist democracy (based on the content of the essay), that statement certainly seems to imply that voting did matter -- so much so, that extending franchise to new demographics harmed capitalist democracy (the thing he cared about).

With that context, his update seems more like an attempt to recover from bad PR than anything else.
A fresh fish killed and put on ice is a lot fresher tasting than a half-dead fish limp but alive in a home fish tank.
I’m scared by what the Japanese are doing with Prolog…
“SoftBank has been working with Morrison Foerster, known as MoFo.”
This is very cool and very much like what I want, but I can see how it's rudimentary. I think the only sustainable approach to these things is to build modular components and keep them separated into different modes/contexts. The advantage of that being that you can easily import symbols/functions from that particular paradigm of math into your notebook and then apply it to what you're doing in order to save time.
In many ways nostromo95 is correct, however that $1B is probably sitting at the top of the liquidation preference stack. The rest of the money would probably be buying earlier preferred stock or common shares which would be riskier especially if the company can't maintain the $70B valuation.

As a side note, if you were to try and double $100B, I think Softbank's approach is pretty good. You'd aim to invest large amounts of capital into late stage companies and negotiate to be the most senior liquidation preference. This strategy would give you growth potential as well as plenty of downside protection. One downside is that companies that take Softbank's money may struggle to raise additional private rounds. As a result, I think Softbank will be the last round of private capital that many of these companies will raise before IPO or some kind of M&A.
That's how I read the original essay as well. I think the update is an attempt to recover from the negative attention the piece got.
Wow that seems to paint a very very bad picture. I thought the impact of climate change was still a matter of great contention, or is this article a pretty accurate prediction?
Small companies are often run by people who are at best inexperienced and more often are incompetent.

They can’t scale their business, why do you think you can do it for them?

Recipe for disaster.
IIRD doesn't the double-slit experiment show it goes through one or the other?
Kalanick has always been on the board. He never left, but he has struggled to appoint two new board members, which results in Benchmark suing Kalanick. It is specualted SoftBank's investment is to reduce Kalanick's power on the board. Also, I don't think anyone in their right mind would want Kalanick back as CEO; perhaps in the future like Steve Jobs. But Kalanick has much to learn, despite I do feel bad for him for losing his beloved mother while he was ousted as the CEO, regardless of how he ran his company. He basically lost two things he has loved a lot, accordingly to him, which I can understand from my own experience.

In anyway, SoftBank is known for very acute investment, so with SoftBank stepping in, the board won't allow any more fuck-ups. Though I am very surprised SB didn't invest in Uber early on...
For someone who dislikes smalltalk, the ideal is for their conversational partner to maintain the discussion until a topic that interests them is brought up. Between two people, this is perhaps insolvent, but with a larger group, some of whom may already know each other, it is perfectly feasible to wait until you have something to say to speak.
>You don't even need to understand chemistry

Parent said "understand food chemistry", which I understand not to be the chemistry of food as it relates to molecules and chemical reaction chains, but rather something more basic: this thing can soak too much oil, this burns quickly even in moderate fire, this food gets soggy if you put in this before that, and such things.
They probably determined your page-relevant term was just getting in the way of their killer machine-learning tuned strategy of showing ads for the last thing the user happened to look at.
The difference is the ease and scale with which identity and source can be hidden or spoofed to exploit trust relationships and herd instincts on the internet.

Whether something is white (e.g. RT, Voice of America, etc), grey (e.g. swift boat vets for truth, astroturfed citizens for X), or black hat propaganda (e.g. Black Matters, @TEN_GOP) depends on whether you represent yourself as (a) yourself, (b) a neutral party, or (c) your adversary.

So yeah, the problem is one of policing identity rather than messages. In other words, how do we make it more difficult for people to get catfished?
Yes, my mistake - I read about AMT and conflated the two.

Lesson: don't read things when half asleep and then think you understand what you read.
Prices and selection differ between what Alexa quotes and Amazon.com[1]. This kind of stuff is very common, but specifically highlighting Wal-Mart seems odd.

[1] https://www.reddit.com/r/Frugal/comments/6evffg/alexa_prices...
It's all OK as long as the Democrats win.
>> But even Starship Troopers is a book not about facism, but about the virtues of service to the collective.

Can we please not over-read politics into Starship Troopers' imagined society? It's first and foremost a book about space marines in power armour making war to giant bug-like aliens. There is some political subtext but it mainly serves the purpose of painting a convincing portrait of a future society, with mores that seem weird to uss (public floggings, voting only for the military etc). Or in any case, the desire to add some convincing fluff in an already interesting interstellar action romp, should suffice to explain all the weirdness of the imagined society.

Full disclosure: I've been called a fascist for declaring Starship Troopers one of my favourite Sci-Fi works ever; called that by a guy who played Warhammer 40K like crazy, I might add (you know, the game where a psychic vampire rules a humanity sinking into barbarism and sends forth his genengineered supersoldiers to subjugate the xenos, etc). My other favourite books tend to be Iain M. Banks ones, so not quite the fascist dystopias. Rather.
Understanding Perlin Noise
I completely agree with this problem. While I haven't solved the full problem you are describing, including graphs and diagrams, I think they will all fit nicely into this application model soon.

The biggest problem with pens is palm rejection, which some recent hardware has gotten right. This actually works find on a screen you can only write on with the pen, like a graphics tablet, but people love their mobile games, so even laptops get capacitive touchscreens in most cases these days.

I cannot wait for good tools for managing mathematical work like we have for prose today, I think it will be a real productivity boost for students as well as professionals. So many workflows get forces into Excel and Word because they are the tools that people know. While they are great at some things and pretty good swiss-army knife products, they just don't work for managing a bunch of floating diagrams/images and lots of equations.
Weird trends here lately. A friend of mine recently bought a jacket at REI online and saw it cheaper at the REI store. They wouldn't refund the difference and said "we don't price match our own products".
You can use Javascript, the main engines will do that kind of magical "fixing" like adding missing semicolons and hoist variable definitions upwards in functions. It's even transparent.
It's an hot mess.

What you request in the last paragraph is a Junior Developer to do the grunt work of implementing a spec.
No one wants the FOMO.
It's the same as any other serious family activity. Going on a camping trip, having a big garage sale, or decorating your house for Halloween can take just as much planning and cleanup as a dinner party. If you can take day off or take advantage of a long weekend to do these things, great! If not, you probably have different priorities and that's fine too.
> it sounds like the marine community uses "SSB" to mean "an HF radio with SSB", and "VHF" to mean "a VHF radio with FM".

It's a little bit more specific than that. ITU has specific frequency allocations for maritime use that imply several of those details that are not explicitly stated when a sailor refers to his VHF radio, and GMDSS standards also help dictate what kind of equipment and features are expected for different bands.
There is hardly a source more biased than NYT.
Because small local shops are not as efficient as big not-local shops. Nothing to do with the skill or determination of shop owners, just plain, uncomfortable, economics.
Ask HN: How to verify a BlockSign transaction in the Bitcoin blockchain?
I am really enjoying this subthread and I appreciate your contributions to it.

I think it is a little of column A and a little of column B. I think a lot of people want to emphasize the luck, happenstance and inheritance angle in part to try to make peace with not being rich themselves.

I have mixed feelings about it. On the one hand, I am tired of being dirt poor and working so hard at solving my problems, seemingly without ever getting any credit while often feeling like the financial piece never really changes, no matter how much progress I have made. There always seems to be some reason why I am broke anyway.

I wish life would give me a break and I end up often feeling like the difference between me and more financially well off people is entirely "luck" (bad luck) that no amount of effort can reverse. On the other hand, I want success that I earned, not some winning lottery ticket.

I can't quite figure out if hoping for a break is worse or if wanting to stubbornly do it my damn self is stupidly and pointlessly masochistic.

I don't have the answer. I am just trying to say that I have a lot of sympathy for the people who want to claim that rich people were just lucky.

Yet, I have worked hard to get healthier and seen results for that while people dismiss that as wild coincidence and get incredibly defensive at the idea that making changes to their life might make a difference. And it gives me the sneaking suspicion that people who want to say rich people are merely lucky and that's it are people who don't want to examine what they might be able to do differently because it might involve admitting that their lack of money is partly due to not wanting to make certain hard choices.
Especially if you are in UK, I'd dare to recommend laptops from less known company, Star Labs Systems https://starlabs.systems/ . I own "Lite" which has all stuff by Intel (most importantly wifi + bt, no broadcom shit).

They officially support Linux, and you can even choose to have a keyboard with Tux instead of Windows logo :)
As per my answer above, you just need to know a very high level food related chemistry -- not even actual chemistry, just how different foods (plants, meats, sauces, etc) react to heat/water/cold and how they interact between them.

There have been untold number of cooks who know nothing about actual chemistry beyond "water = H2O", including tons of professional chefs all over the world. In fact any chef before like early 20th century or so wouldn't know the first thing about chemistry proper unless they've studied chemistry -- heck chemistry became a real discipline after the 18th century, but exquisite cooking has been with us for millennia.
In a somewhat similar vein in 2009 I wrote about how useful Twitter is for spreading disinformation.

Some of the points I made were somewhat mitigated by Twitter product changes but I still think it holds up as an article/paper.

http://memeover.arkem.org/2009/12/twitter-as-vector-for-disi...
Back in college, a friend of mine wanted to buy an expensive SLR camera. He researched the prices diligently, and found a place in LA with the best price. So we all piled into his car, and went to buy it.

Once there, he naturally bought a lense, flash, case, carrying strap, film, filter, etc. Back in the dorm, he ruefully added things up and compared again and found out he'd paid, in aggregate, top dollar!

An awful lot of analysis and variables go into setting prices, and whether an item is in-store or online is just one factor.
""A BlockSign Transaction is a transaction on the bitcoin blockchain representing legally binding signatures on any document, contract, or agreement. It can be any bitcoin transaction with at least one Pay-To-PubKey-Hash Input and at least one BlockSign Output.

The PubKey Hash (aka. Bitcoin Address) in the Pay-To-PubKey-Hash Input identifies the signer (or signers) while the hash digest embedded in the BlockSign Output identifies the document being signed.""

I can understand how a document can be signed and bound, but the process of verifying the signature is still obscure to me !

Can anyone clarify this please ?
No. It goes through both. That's the weird thing that double-slit tells us, especially because it remains true even for "one photon" (i.e. one quantized energy packet arriving somewhere on the detector screen).
More than one exploit released by the shadow brokers was specifically targeted at Linux/Unix/Cisco and other operating systems...
Its naive to think that other operating systems are somehow invulnerable to nation-state attackers.
One can also do better with the right choice of characters: ╲ ╱

from random import choice; print(''.join(choice(('╲', '╱')) for i in range(10000)))
Perspectives of Scientists Who Become Targets: John Mashey
That's not how it works.

When computational hash power leaves the network, the difficulty won't readjust and transactions will slow down and clog for at least 2 weeks unless computational hash power returns.
China has 3x the population, so they ought to end up with 3x the GDP in the end. Per capita is the question.
Might as well use YAML or TOML in that case.
Same use case and you are not limited to ASCII strings for identifiers.
If you're one of the hosts, it's also perfectly acceptable to say just a few words at the start and then proceed to occupy yourself with the logistics of the dinner.
That's a great example. One solution here might be to find an intermediary who works well / gets along with the Toxic boss and involve them in process somehow. You might just go to them for advice and try to understand how they they work with the person and what process has worked well for them. Another one would be to try and meet with your Toxic boss outside the office in a more neutral setting where you can have an open and honest conversation about what's going on. What I've found is people behave and open up differently outside of an office setting. You could also discuss your problem with other folks who work for this person and see if they are coming up against the same problem. If they are, then there are clearer grounds for you all to bring the problem to someone else to try and present it objectively coming 360 review time.
And I'd give NYT a lot more credit than Disney/ABC in that department. Not a peep from ABC News over the Disney/LA Times brouhaha.

http://www.chicagotribune.com/entertainment/movies/ct-mov-di...
Why would it wait two days? Have you never seen an ad for laptop bags before? I see them often.

You can decompile the facebook app. You can install a cert and mitm the network connection. You can do anything to the client. Yet nobody has found any evidence whatsoever of this behavior.
this is an interesting youtube channel related to this

https://www.youtube.com/user/jastownsendandson/videos
The Surprising Effects of a Basic Income Supplied by a Tribal Government
Target desperately wants to be completely viable as an online shopping destination, a reverse Amazon if you will. They have the profits and the time to force everybody through a funnel designed for the business model they'd like to be using in the future.
Unearthing a masterpiece
Decentraland will be a proframmable VR world blockchain based. It will be second life 3.0
If they hadn't also breathlessly bragged about life-threatening storms and sharks, that would be plausible. :-)
It's how you measure whether you're doing something useful.
The author was the former Facebook PM in charge of creating the ads targeting team.
https://www.urbandictionary.com/define.php?term=mofo

> A person who thinks they are the shit, dressed down with sagging pants, a high need for a belt, too much gold to make the national reserve jealous, and an attitude that stems from not having parents who knew how to refrain from the use of crack cocaine.

Don't sue me for libel, I'm quoting "deez nutz"!