skysight-inc/HackerNews huggingface dataset:
Explain the difference in semantics between the two because the mechanics sound the same, best I can tell this company was just running ads like everyone else. Creating psychological profiles of voters to craft messages to them to pursuade their vote I believe is the same thing as political advertising and is exactly what Obama's campaign were doing and had countless fawning articles written about them (just Google it.) Best I can tell the real facet here being used to paint this in a new light is the use of harvested data in a way that violated Facebook ToS but that is 100% nothing new and crawling FB via the API to do data science was a new idea like 10+ years ago (and it has since been locked down due to the prevalence of abuse I'd assume.)
I don’t think quaternions would be taught in a typical first course of abstract algebra. Do you know of a textbook where they are featured prominently?
But that "feature" was from an era before the internet and Amazon and Google Books, back when not-buying a book meant the information would likely be lost to you forever.
It's absolutely true that to be most useful, knowledge needs to be absorbed and integrated directly into the mind. But there's a large constellation of useful information and data out there too, and you can't and shouldn't memorize all of it.

I collect a lot of links to articles that I've read using pinboard.in. However, I fairly frequently end up searching through those bookmarks to find the article that I remembered reading. I suppose once or a few times per month. It's especially useful for bookmarking specific scientific studies, or papers presenting engineering techniques, etc., where it's useful to remember "I recall reading about that" and be able to get back to the original.
Ironic that the way you showed the justification is proof that the justification is no longer valid. You didn't have to buy the book to use it as a reference when needed.
The production stack for this is almost always postgresql/Cassandra+spark.
Some people also use stuff like Janus graph, but that is still too new.
But didn't people learn from the Vietnam and Korean wars that they might be unnecessary for defense even if the government says so? Is it that a new generation forgets the lessons from the previous one? In that case, why not blame the soldiers - if there was little popular support for them and it was seen as a shameful or failure of a job then maybe fewer would be sucked into it.

I heard that in WWI, soldiers were naive and didn't understand what they were getting into. Now though, there's no excuse. Everyone learns history at school and can use Google. So the decision to join should be fairly obviously likely to lead to doing bad things. The US has been nearly continuously at war since WWII, it's not going to suddenly stop when your son joins the army.

Also, how do Americans reconcile that "my family" attitude with the fact that the people they're fighting are also somebody's sons and brothers? It's not seen as equally noble to be an Isis soldier as a US one. What makes the US special other than "my country"?
Structures of function pointers and, what, string method names? My C++ is rusty, but that's all I can think of. I guess there's a lot of variations on structures of pointers...
Could you name a few? I was under the impression that inheritance was the only way.
and a substantial number of heavy drinkers maintain the idea that they are moderate drinkers, and thus would actually be helping their health by continuing to drink.
Fun story: I once heard of a startup that was keeping all their data on ephemeral local storage, mirroring it between instances across AZs for "high availability", and then, er, using spot pricing for all instances to save money.

One day the spot price skyrocketed and all their databases got shot down.

And that, I presume, was the end of the company.
If it’s not practical to exploit, why wouldn’t Microsoft disclose it publicly? I thought that the “best ethical practice” for vulnerability disclosure is to notify the vendor privately, then disclose publicly after some period of time if the vendor is uninterested or unresponsive, with the idea being that it’s safer in the long run for vulnerabilities to be publicly known than only known to a small number of parties (since some of those parties may be trying to exploit the vulnerability).
I’m sorry you feel attacked.

After watching a friend suffer, I feel a visceral negative reaction to peddling dietary supplements alongside medicalish advice.
What's wrong with eating chocolate and peanut butter regularly? They are healthy foods.
Strange, I have taken a 4 credit, one quarter class in both probability theory and combinatorics in my undergraduate math and computer science education.
I think you are getting caught in the weeds. The point is that historical science is still evidence based.
Discrete convolution definitely isn't the dot product. Given an n-tuple a and an m-tuple b, form a polynomial p_1 from the coefficients of a and a polynomial p_2 from the coefficients of p_2. The the convolution of a and b is the coefficients of a * b.

e.g. a= [1,2,3] and b=[4,5,6].

p_1 = 1 + 2x + 3x^2 + ...

p_2 = 4 + 5x + 6x^2 + ...

p_1 * p_2 = 4 + 13x + 28x^2 + ...

Hence the convolution of a and b is [4, 13, 28, ...].

Here's the full answer:

octave:1> conv([1,2,3], [4,5,6])

ans =

4 13 28 27 18

The intuition behind convolution to me for an image is uniform blurring. If you have a square shaped eraser, and you use it to blur a pencil sketch, the sketch will appear blocky and square shaped. Or perhaps a better analogy is painting: your wall will appear different depending on whether you use a paintbrush or a roller.
Images Manipulation in Cloud Is EASIER Now
I just got a 20 year old Land Rover and, after having attempted to repair consumer electronics and modern vehicles, I am stunned at how easy they are to repair.

Firstly, it is an entirely mechanical car, which makes everything much simpler. But the truly stunning bit is the documentation and community.

All of the workshop manuals are available online. That is good enough for most tasks, but if something particularly complex needs diagnosing, there are forums with all the information you need.

When you need to get parts, an exploded diagram of the entire car is available online with part numbers. Both the original manufacturer and several third parties still make parts. Somebody has even made a price comparison website.[0]

I wish all the things I owned worked like this. I understand the economics often don’t work out for smaller, cheaper things, and there is no incentive for the original manufacturer to provide these things, but surely there is enough of a community to support common repairs in a similar way.

[0] https://www.landroverworkshop.com
It’s not very likely for any US constitutional amendment to be passed ever again.
Google Fuchsia: A system built for 'Instant Apps' on steroids
I recently had a similar experience with an LG G watch. Bought on craigslist for $5 'as-is' (I wanted it for parts), but turns out that the only thing wrong was the OS had been corrupted on it somehow. I was able to flash Android on it and it works perfectly!
From what perspective is a rectangle a kind of square?
Ask HN: Searching specific post on hackernews
i am specificaly looking for a post where described was a google developer program where wvery two engineer give a complete solution to a problem leveraging gcp describe it in a youtube video and let user vote on the better system. i have been unable to find this post so far eother on here or on youtube
Concave earth is hands down my favorite conspiracy theory. The completeness of the lie is astonishing. I actually spent months trying to come up with a way to disprove it on a high-school-education only-trust-your-eyes shoestring budget, and couldn't come up with much.
Correct :) There are builds being released but the game is far from complete.
I remember being introduced to quaternions recently by this post[0] which recommended this book[1].

[0]: https://www.haroldserrano.com/blog/best-books-to-develop-a-g...

[1]: https://www.amazon.com/Quaternions-Computer-Graphics-John-Vi...
So far the JVM + Kotlin have been very handy! The coroutines are really cool for doing async stuff and really easy to use.
JavaScript Summary for beginners
The Refugee Detectives
I am aware of it... we have somewhat divergent goals. I seek more of a re-creation of "SC4-style" city simulator, without agents for all traffic and so on. I think the big difference between this game and Citybound is that I'm trying for more of a statistical / stochastic approach vs. an agent based approach. I think the agent-based approach was one of the factors that led to SimCity 2013 not being that fun.

Citybound is aiming more for the Cities: Skylines approach to traffic and simulation.

I'm a big city-builder fan and have tried almost every one I can get my hands on. Among myself and some others, there is the feeling that the SimCity series peaked at SimCity 4 and I'm hoping to recapture that feel. It seems that Citybound is going in a totally different direction, which is fine, but that's not the aim of this project.

I hope to play Citybound when it is released but I do not think this project is redundant.
Great article. After reading, I realized it may also describe Apple.

"Businesses like Wild Bill’s, which are formed around the passion and personality of a unusual individual, can be hard to keep alive over the long term, even when the founder is still alive. And when the visionary passes on, and a family disagrees over how to run their inheritance, the chances of survival become slimmer still.

...

In the past, part of what made Wild Bill’s Nostalgia a special place was these sort of improbable, impractical projects, which functioned as round-about investments because they attracted people to the store to spend money. Under the supervision of a fiduciary, there’s little room for that sort of creative marketing."
Take it up with the Kotlin guys :)
No, there are no proper addresses for large slabs of India. The status quo is people using things like "Vijay Nagar, IFFCO Chowk, behind Maruti showroom" even for mailed correspondence.
Learning about how you learn can be a great first step! I highly recommend the aptly titled Coursera course “Learning How To Learn” [0] with Barbara Oakley. She also has an accompanying book “A Mind For Numbers”, which has much of the same information in it.

I’ve worked through both and found them very enjoyable and useful, and I occasionally review my notes on them (with a short quiz, of course!) to refresh my memory. I’m also pursuing further education (coincidentally also a part time masters in a field I have little academic experience in), and I’ve found that the lessons are very applicable.

[0] https://www.coursera.org/learn/learning-how-to-learn
This made me think about a verse from Auden's poem "Under Which Lyre--A Reactionary Tract for the Times":

The sons of Hermes love to play
And only do their best when they
Are told they oughtn't;

Apollo's children never shrink
From boring jobs but have to think
Their work important.

http://members.wizzards.net/~mlworden/atyp/auden.htm
Probably some of the introductory level Computer Graphics books. The field uses a lot of quaternions, so they might have a good explanation about it.
They have some pretty useful properties. For example every polynomial of degree n has exactly n complex roots and if a complex-valued function is differentiable wrt a complex variable then it's also infinitely differentiable and analytical.
This is bizarre. It’s not “ganging up on you” for two separate people to think that your behavior is weird, and it’s not bad faith tactics either. If this happens to you a lot then I’d guess that you frequently seem to be misjudging other commenters here.
it's not that simple. Have a look at my reply to the parent.
In my experience, it's been helpful occasionally. I've used techniques from it once or twice when writing algorithms to figure out what exactly the constraints on their inputs would be, however, other than that I don't think I've ever used it.
Have you tried using the search bar at the bottom of HN?
I think taxes based on users or revenue are misguided.

This sort of tax ought to be based on a relative share of megawatts of compute power, and should be progressive in a way that prevents any single entity from controlling more than N% of all computational capacity.
I've heard similar frustrations from bug-hunters before. I don't know enough to side with anyone, but it would be nice if there were some kind of oversight body for this sort of thing, an independent third party that offered some consistency in the experience.
At one point I was buying/trying a lot of new stuff, shiny new hardware, gadgets, software, technologies, frameworks, etc. But now I don't care about learning/collecting new tools anymore unless I have a really good reason to do it.

For me, creativity seems to spur from mixing and matching a minimal amount of basic elements. Creativity is very close to mastering a computer programming language. In general, you only need to command a paintbrush well to compose great paintings. You only need to know 30 keywords to make amazing programs. It's better to make use of general purpose tools really well to my specific needs than to employ a whole bunch of specialized tools. Having specialized tools is the answer only when I need to copy and mass produce something.

One of the trends I have seen lately is some people have the tendency to branch out to make new gadgets and teach very specialized tools nowadays without merit. For example, the amount of javascript frameworks is absolutely mind-blowing, there seems to be a new javascript way to achieve the same damn result every minute. Someone recently bought me a sous-vide cooking device which both before and after having it, I still have a really hard time justifying having it in my home: What couldn't I do without it and with just a thermometer? I cook sous-vide exactly 0 times before I got it, and do it 3 times in 6 months since I had it. When I do it, I could as well enjoy and watch the thermometer instead of having download an app to my phone that I use once every 2 months to watch the temperature for me.

It's not just in tech -- I understand they need to sell shit. Even in education, there are courses of "data science in X" or "X statistics" offered at every university for every field. One of my friends (who is doing a PhD) recently asked me to help with one of her assignments for her course. Basically, it was just two hours of boring shit teaching her to use graphs with various examples in her field X, I just jumped in and helped with what I knew, which has nothing to do with her field X. Why can't it be just a general-purpose data science or statistics course?

With this rate, sometime in the future, we'll have sous-vide device just for 20-year-old blonde people who are married instead of just a thermometer that works for everyone. Rand's razor and all that.
To make money.

Was that a serious question? It doesn't matter if the product is terrible as long as they can make sales, revenue growth looks fine (unless you've built a $100M business in a year?), and they definitely do make money unless you're talking about profit, which in VC-funded companies is traded for faster growth and exit (like an IPO).
Interestingly, in 19884 the government do the opposite. The workforce have some leeway (booze and sex) while the middle class (the one that could see through the party lies and revolt) is under permanent surveillance.
FT subscriber here too. Wish there was a way to share articles too. Because I always use the app and am not signed in, it's annoying to come across FT articles and not be able to read it.
Oh no your anti-corporate organization is being visited by left wing people...
I wasn't peddling dietary supplements. I was recommending a particular brand of sea salt. Salt is not a supplement. It's a normal part of the diet.

There is research showing people with my condition who surf have a better prognosis. This research is respected enough it led to the creation of a prescription treatment where people inhale nebulized salt water. I think that's a silly conclusion and a more logical one is that sea salt is beneficial. I also recommend people like me simply go to the beach whenever possible and/or live near the coast because this is known to help.

I'm sorry for your suffering, but the problem here is that people are suffering horribly and dying from my condition and there is no path forward for helping them. Meanwhile, drugs are being developed that cost $300k annually and help only 5 percent of the population but I am evil incarnate and viciously attacked on a regular basis for a. Saying "I did X and it helped me" and b. Trying to find some means -- any means -- to monetize my writing on any subject, whether health related or not, so I can take better care of myself and stop being desperately poor.

I blog. The information is free. It isn't framed as medical advice. And when I criticize conventional medicine and how it gets monetized, I also get attacked for that, a thing that happened just today in a different discussion in HN. There is zero logical consistency here. The thing that is consistent boils down to prejudice.

I have thought a great deal about this problem space and how to monetize it. And I cannot think of a good path forward. Trying to make money off of helping people with their health is just inherently problematic. Period. Whether you decide to become a medical professional or not.
The TeX Yoda has a terrible built in mouse. Highly recommend steering clear. I've been a thinkpad guy for the past 15 years or so, and I jumped on the opportunity to buy one when it came out. The sensitivity on the trackpoint has a really weird velocity curve and I never managed to get it to feel even close to right on any platform.

Building keyboards has been a hobby for a minute, I've settled on an HHKB that I've gutted and replaced the controller with a Teensy 2 so I can program all my mouse keys and shortcuts in hardware, therefore avoiding the inevitable discussion on who's mappings to use when pairing.
You can often find good offerings for sale/trade on reddit/r/mechmarket.
This seems like an over-application of the (valid) claim that evolution doesn’t have any specific objective. The sentence you quote doesn’t describe an objective. It only describes a necessity.
believe it or not, its not that accurate because of the imperfect tuning ratios of even tempered scale. i think checking 4ths and 5ths of adjacent strings is really the way to go, since those are the ones that sound really bad when out of tune. if you really want to get in to the weeds of tuning on a guitar, martin taylor touches on some more of the complexities here: https://m.youtube.com/watch?v=Dl3mcHixAKM
> Solar+batteries is down to ~6c/kWh with zero subsidies

Is this 6¢/kWh figure for any region, or the middle of the Arizonan desert?
This comment section.. wow.
For non-Indian readers "Vijay Nagar" is a neighborhood named "Vijay", "IFCCO Chowk" is an intersection named "IFFCO" (yes sometimes intersections have names and the names often have nothing to do with the streets that join there) and "Maruti" is an automobile brand.
Are you willing to bet money on there being no data breaches from GPDR compliant companies in the next N years?
Thank you, I will fix that soon .
This looks interesting. I should bookmark it for later.
Are they listed separately on the stock exchange?

If so, then they really separate companies, not just different on paper. Their ownership of the different companies will eventually diverge from each other and the companies will need to compete with each other to satisfy their owners.

If not, then the taxman will probably be smart enough to send the bill to the parent company instead of the mini-Googles.
An ADHD brain talks back. Similarly to a rebelous teenager. You need to brush your teeth. You want to do it. But the brain goes "let's just check Instagram one more time." You see, the dopamine-inducing task always wins.

To do lists, books, apps work for a while, until the novelty wears off and the dopamine return is diminished.

Good luck with the app. Focus on dopamine.
If this happens to you a lot then I’d guess that you frequently seem to be misjudging other commenters here.

That's another unfounded personal attack.

Women and other minorities often have a hard time in environments dominated by white males. It has nothing to do with them doing something wrong. They are simply demographic outliers.
> Because that's where the generated binary will go.
> Presumably the same for any lib files?

Why is even tracked, then? Surely putting it in .gitignore is a better way to go?
Then have the scripts create them?
Yes, but see https://en.wikipedia.org/wiki/Falsifiability#Verificationism
B-Heap vs. Binary Heap (2010)
I believe you missed a step there. After learning deep learning, GP would want to learn about how complex numbers are an improvement. Only then would one want to consider how quaternions are an improvement.
Thanks. I’ve actually taken that course already. The only thing notable, that I got from that course is the importance of spaced repetition. But my angst is that I simply can’t pick things up at first glance, and envious of those that can.
Did you try "site:news.ycombinator.com keywords" in google?.
Accurate. Too accurate. You end up with your strings in perfect 4ths instead of equal tempered fourths. That’s just under 2 cents off, but if you tuned all adjacent pairs it adds up.

Be careful not to train your ears to hear the difference. Guitars playing chords are maddening collections of compromises and you will find yourself spiraling into sweetened tunings and fiddling with intonation instead of playing and enjoying music. Someday when you are adjusting your microtonal frets between songs, remember I warned you.
Any suggestions for readable introductions to how complex numbers help neural networks?
In the world of amateur radio, coordinates are converted into short strings of letters called the Maidenhead Locator System:
https://en.wikipedia.org/wiki/Maidenhead_Locator_System

I always wondered why this system hasn't "escaped" amateur radio and found uses elsewhere.
Neither jeans or belly fat are the cause of your issue. As someone who wears jeans and has a lot of belly fat, doing a full squat (and resting in that position) is no issue. I suspect it just has to do with flexibility with the hip muscles, built over a lifetime of squatting in most developing countries.
It's easier than trying to manager the details in an app like Quicken.
The term is used in Germany as a battle cry against the enemies of social market democracy, perceived or real.

I don't think it's a thing in the US.
Non-stimulants also increase dopamine and norepinephrine in the prefrontal cortex, and not everyone sees a benefit.

In general though, yes dextroamphetamine is a powerful stimulant that enhances physical and mental performance in healthy individuals as well as those with ADHD.
Sounds like there's a story behind this. What happened?
wait why? didn't they also produce diet drinks?
I doubt this person would submit to genomic testing for ADHD. Failing everything (socially, school, and work) as a child and in adulthood isn't some fucking joke. This opinion piece is wrong. Might as well throw out the sunscreen and pray away skin-cancer.
I wonder if there's a fear under that of being mocked because someone else has different aesthetic preferences.

Well, in this day and age, that kind of thing gets called out pretty quickly.