skysight-inc/HackerNews huggingface dataset:
In the decision function of an SVM, you compute the scalar products of the support vectors (points that are on the margin of your hyperplane, or more precisely, the points that constrain your hyperplane) and your new sample point:

x· sv

The "z" the article defines is a new component that will be taken into account in the scalar product. A more mathematical way of seeing that is that you define a function phi that takes an original sample of your dataset, and transform it into a new vector. In our case, we simply add a new dimension (x3) based on the two original dimensions (x1, x2) that we add as a third component in our vector:

phi(x) = [x1, x2, x1² + x2²]

The scalar product we will have to compute in our decision function can then be expressed as (this is the a and b in the article, i.e. the sample and the support vector in our new space):

phi(x)· phi(sv)

The SVM doesn't need phi(x) or phi(sv), but the scalar product of those two numbers. The kernel trick is to find a function k that satisfies

k(x, sv) = phi(x)· phi(sv)

and that satisfies the Mercer's condition (I'll let Google explain what it is).

Your SVM will compute this (simpler) k function, instead of the full scalar product. There are multiple "common" kernel functions used (Wikipedia has examples of them[1]), and choosing one is a parameter of your model (ideally, you would then setup a testing protocol to find the best one).

[1] https://en.wikipedia.org/wiki/Positive-definite_kernel#Examp...
Yup, end-of-the-line logistics would be an easily transitioned to stopgap measure. Some former truckers would be able to stay local and handle loading/unloading. Not as many as are currently on the road, but every little bit of transitioning helps.
Cool take on things, but not really fundamentally new as an explanation of evolution of cooperative traits. Models involving reputation and punishment have been around for awhile. Basically, once you introduce reputation and memory, together with punishment, cooperation becomes more viable as a strategy. It's even led to models of higher-order cooperation, of enforcing the enforcers, etc.

To me it seems like the paper isn't really offering a fundamentally new explanation of how these traits arise, it's just providing a sophisticated analysis of the dynamics.
> these systems were held back by a limitation that was considered to be fundamental

This is the key distinction: -proven- fundamental is very different from -considered- fundamental.

Overturning Heisenberg's Uncertainty Principle would shatter physics as we know it.

Overturning a misconception is far more mundane.
That's the agricultural land reserve. Can't build there, aside from mansions. https://beta.theglobeandmail.com/news/investigations/farmlan...
It's a widely discussed effect that tons of people have complained about, including famous directors -- so one can hardly be surprised others find it as such too.

I for one, don't like that kind of high frame rate motion -- it looks as fake as bad CGI graphics.
Behavior like this should end in a multi year ban of the corporation existing. Only with such extreme penalties that far out weigh any possible profit will corporate behavior change.
Doesn't the time-bandwidth reciprocity fall out of the same math as the Heisenberg Uncertainty Principle? Does this work have implications for HUP "workarounds"?
Well no, actually. Good Nvidia cards are also nearly extinct, because they are actually still profitable for Ethereum mining. So when people couldn't find AMD cards, they settled for bying Nvidia.

Unlike the situation with Bitcoin a few years ago, Nvidia cards are ok for mining Ethereum (something like 40-50% lower hash rate than AMD, but still very much profitable).
I did try with speed 3. Do you mean that:

(declaim (ftype (function (fixnum fixnum) fixnum) foo)
(optimize (safety 0) (speed 3))
(defun foo (m n) (* (1+ m) n))

should have produced the optimized code (without any generic-*)? It didn't in my testing on SBCL 1.3.18.
I believe his condition is neurological. I'll definitely pass on your link though!
I didn't see analysis about the separatist/immigration issues.

That might be more relevant to Trump/Brexit, but does not seem to fit very well into any of the 3 categories the author sets up.
In the days of analog you could connect a walmart cable to the box outside, and your TV would receive cable. The cable box probably had an empty connection on the splitter outside to plug the cable into, and opening the box isn't hard so this entire process was well in the ability of anyone who could change their oil. There were plenty of bootleg instructions on how to bypass the scrambling system to get any channel, though the basic cable channels were not scrambled in the first place.
Of course, some degrees are direct training, and some are more generally useful. But there's a spectrum.

E.g. philosophy and "gender studies" are both considered generally useless. But I'd say that philosophy at least can be applied to various types of work, and the course doesn't make a student less useful as a productive human.

With "gender studies" the student is actually becoming more useless by having his head filled with a bunch of moralisms, victimhood ideologies, and objectively false lies about the world. A naive highschooler is more useful in any workplace than a "gender studies" graduate.

It's more useful to know nothing than to know things that aren't true, or be full of propagandized anger at various identity groups.
Let's be clear to differentiate when we're talking about fundamental laws like conservation of momentum or unitarity versus "how much energy can be stored in a fiber", which was really just the derivation someone did on a specific class of fibers and then assumed that every other fiber would be the same thing (some homogenous material, boundary conditions, etc.).

Calling this particular result "breaking a fundamental law" is just typical hyperbolic science PR.
The regulators need to crack down on this. If Comcast controls the regulators, they need to be broken up. No one company should have that much political power.
Vancouver could legalize making 6 story high apartment buildings with 2000 sqft 4 bedroom family sized units.
Had to be recreated without access to the original source code? How sad.
Yes. Very simple formula: Do great work in your day job. Help people. Do small side projects that you enjoy. Make everyday count.
Economic assistance. Give them the resources to choose their new career path for themselves.
Software trumping hardware. Question is how generalizable is that approach.
Chrome 59 with TurboFan is Sometimes Slower than 58
One of the reasons tech is doing really well here in the last ten years despite the governments is that you don't need a lot of imports to work on IT except for the computers, the customers abroad are easily reached through internet and also you don't pay export taxes like you would if you would export meat or soy. People are really well educated as education up to a bachelor's degree is completely free.

What used to be difficult is getting money into the country, something that sounds as crazy as it really is and all of the different white grey and black exchange rates. I had to send money to a US account owned by somebody that would promise to pay me in pesos here because there just was no other way to do it. That really made me nervous.

Also I couldn't pay my bills abroad because I couldn't send any money if nothing was left on my foreign accounts.
Remote driving, though, might solve for this. You still have a human to react to unforeseen circumstances, but you can switch up the remote driver easily so you can work in shifts, drive 24/7, not stop for bathrooms/food etc.

I'd imagine the quality of life would be significantly better too since they would work in the same spot with co-workers and could go home every day.
(Note: I'm the product manager for the headless browsing feature of Firefox.)

I chose to prioritize WebDriver support because it's a popular way to drive headed Firefox, and I wanted to make it as easy as possible for existing WebDriver users to use headless.

For use cases that are not well-served by WebDriver, I've considered supporting the Chrome DevTools Protocol, as @brendandahl noted, although I haven't yet made a decision to do so.

I'm interested to hear more about the use cases you've considered for which WebDriver is a suboptimal solution. Like @brendandahl, I'm in the Bay Area and would be happy to meet in SF or MV.
Don't miss a Gymbox class anymore
Have you always understood and executed this mindset, or did you have to train yourself?
Don't forget that the driverless vehicle will have tracking. Expect to get a ticket complete with video if you do things like that. If you are costing the trucking company money they might be willing to send people to court against you as well (taking you to court might not be worth it, but the teach people a lesson aspect might make it worth it anyway)
Odd that the leaders of freest countries in the world need to go to such lengths to protect themselves from the people they ostensibly serve.
It doesn't matter. If they are contractors working for Comcast, then Comcast should be held 100% liable.

Outsourcing has no bearing on who is responsible for the problem.
It's also a notable distinguishing feature of WeChat and it's wildly popular, FWIW.
What are examples of jobs that don't align with your moral/ideological compass?

You probably shouldn't get all your fulfillment in life from a job. You need to find fulfillment in things you control. Giving so much power to something you can't control will cause you lots of pain in your life.
"I don't buy it"

Ah, sorry, I forgot I was on the internet, land of experts in everything.
The stability of a country like Sweden it will never have. Change is not just a politician's slogan, things really are different every year.

Good, bad or just plainly weird.
San Marzano Tomatoes - The Fake Rolex of Canned Foods
From whom, the govt? I don't trust that would happen (see rustbelt industries). These automation startups? What's their profit if they have to train the people they help get laid off/made redundant?
This doesn't seem to account for rental income, either by renting out a building or by spending money on a mortgage which would otherwise be spent in rent. The real appreciation may be less, but are dividends from stocks greater than rental income from real estate?
Apparently the same scientist published the description of these materials 10 years ago in Nature:

https://www.researchgate.net/profile/Kosmas_Tsakmakidis2/pub...
err.. I think it is an evolution. Deep architectures allow for a more efficient function approximation from fewer examples than shallow architectures do.

Deep (neural) networks are really just a generalization of machine learning (on graphs). The key is that we learn the similarity function to discriminate from examples instead of specifying it a priori. You can also build classifiers other ways: linear/logistic regression based on feature vectors or by providing some similarity metric (SVM). But in these cases you are providing the discriminator function.

For example, in SVMs you have to provide a similarity measure as the "kernel" maps your feature vector into a higher dimensional space where the examples can be separated.

In deep neural networks we don't really know (or care to some extent) what the optimal feature vectors are or what the correct similarity metric is. We only care that at the end we've encoded it correctly (e.g. having chosen enough parameters/layers etc...) after training. Again the NN is some general function that applies a soft-max relationship from the inputs to outputs for each layer.

Yann LeCun has a great paper (2007) explaining this:

http://yann.lecun.com/exdb/publis/pdf/bengio-lecun-07.pdf.
I grew up in Minnesota where we learned to deal with bad roads. We did drive on them and got good at it. The truth is we went in the ditch a lot when the weather was bad.
The irony here is that this kind of styling used in this devtools example(hovering over one element, highlighting another), cannot be done by css itself.
You're right. I was just trying to give some insight into why the quality of work varies so much.
>if the analogy were true, listening to a CD or streaming from the web would make most people think the recording is "fake" or artificial, longing to listen to it on vinyl.

Well, some people do. But unlike 24 fps vs 60 fps movies, mp3/cd has huge usability improvements against vinyl (not to mention it's free if you pirate or stream), so there's no real competition.

But take musicians for example: even most young electronic musicians, born entirely in the digital era, prefer analog synths for their warmth and bite, or try to emulate it on the PC with external processing or purposeful degradation of the signal.

Or take guitars. Who likes a clean, undistorted signal? Even for jazz, people still prefer a coloured, saturated tone.
You should just replace it and define a nullptr macro for older compiles.
Very interesting thanks for sharing. As someone working in e-commerce, I was smiling when I saw some of them but it is frustrating on how often these ineffective experiments are repeated.

I would have loved to see the cut of performance by industry/sector. My hunch is some of the things would work really well in travel but not as well in others especially low involvement categories and categories with lower average selling price. It would also be interesting to know the average duration of these A/B tests, I think some of things like scarcity and urgency will have larger effect in the shorter time duration vs others like UI changes which will take a while to produce substantial results, mostly because customers will have to learn new behaviours. Product recommendations is interesting because it is notoriously difficult to get them right and feel they tend to work better in long tail categories like media vs. head heavy categories like mobiles or laptops. They may also not work well in categories where brand influence is high and are generally high involvement and high cost.
Thanks for bringing some saner notation in here. I feel like blog posts and journal articles that abuse notation like this one just make people more allergic to math.
I'm taking the cynical view.

> intentionally sabotaging competitors?

This only underscores that Uber is a fairly large company. The only difference with every other large company is that not only did Uber get caught, they also sported a festering PR problem which worked as an amplifier.
It seems to me that the US's attitude of being pro-business is to have as little regulation as possible and allow many forms of anticompetitive behaviour, whereas the EU is actively involved in regulating the market to keep it free and accessible for everybody.
This comment is like a C- summary of a good, effortful article.
I think that's a shock everyone goes through. You either accept it as a fact of life and take the paycheck to survive and feed your family, or you figure out an alternative path.

Personally, I find offices pretty depressing usually, the only way I tolerate it is with self-employment. Fulfillment isn't something I really think about, I just want to make sure I'm maximizing my own potential.

If money doesn't matter as much, I don't see why you wouldn't learn a skilled trade. These types of people are usually happier; if you are responsible, reliable and not drugged out, and master a difficult skill that's in demand, you will always have work. In addition, the path to self-employment is obvious, clear, and potentially lucrative.
The hunt is on for gravity waves
A CDN hosted site would be good
Haskell for all: Dhall is now a template engine
Maybe I'm an outlier, but there have definitely been times (long camera movements/rotations in particular) where I thought "jeez, that's a low framerate".

Some movies have it worse than others, and maybe it's my own fault for training myself to look for it with interactive games, but there are definitely times where it stands out as an outdated technical limitation.
And going across boarders I could see people smugglers hiring hackers to slow down the vehicles so that there clients could board the trucks.

Drug smugglers are another group that could use this and how would a cop stop an autonomous vehicle to search it they would have to have a back door which could be abused
Other than name – none at all :)
1 click deployment to something like golem.network would be even cooler
Wouldn't say it's that simple. The biggest supercomputers need to have a balance between fat-ass manycore for the MPI/numerics (which won't go away until physics problems can be solved by DL--seems unlikely); GPUs for training, and probably something ultra low-power that can take advantage of power-in-numbers across thousands of nodes (FPGAs potentially). This is still a co-design effort, but like other areas that have been automated out of existence, it might be our best and brightest (supposedly) at the top of computing creating and maintaining these scientific applications should watch their futures.
Or hosted on an S3 bucket... took forever to load
Amazon accuses Walmart of bullying in cloud computing clash
Agreed. I sold in Toronto nearly 4 years ago believing that the end was nigh.

Stupidest decision of my life. 4 years appreciation on that property is likely another 200-300k that I walked away from. Should have rented, rather than sell.
Technically the way the US legal system works, the expected outcome is that Comcast loses, pays this company, and then sues their independent contractors to recover the damages they had to pay out.
Thresholds of Silence
> people they ostensibly serve

Should they submit to having no protection from a minority group of people who wish them harm? It really is not odd given the gravity of the event and attendees
in what way is javascript a non language? i write c, python and javascript- i dont see how one is any more of a language than another? you are baselessly pretentious
I noticed one of these payment processing fronts when I looked at my card transactions after making a PartyPoker deposit back in ~2006. In this case, it was a site called Gygon.com. If you visited their website, you would have thought it was an online lamp store with many broken features. I later learned that GYGON stood for "get your game on".
Yeah, very poor choice of words. The writer must not know what it means as the effects of "investment in education, healthcare and retirement" are really the opposite of 'pernicious'.
It's so easy to change a MAC address though.

Also in the past (different cable provider) they had it MAC authorised so I couldn't use my new modem. But then I set the new modem to use the MAC of the old one and it worked. So same
Can someone explain how those issues fit into his categorization? I got multiple downvotes in seconds, and I honestly don't understand why.
Java 8 language capabilities, What's in it for you? The notes
Negative One Jobs
I wouldn't lose hope ("never" may be too strong a word). Sweden itself, 160 years ago, was a poor country. It takes time (not only time, of course).
I remember reading this article 7 years ago http://seedmagazine.com/content/article/the_evolution_of_coo...
I have learned which ones to not go to though. Some are worse than others. I know of an out of the way office that is never very busy. (actually this office is more convenient than the much bigger overcrowded one everyone around me uses)
Show HN: Steering self driving cars without LIDAR
Magic leap looks more, and more like smoke an mirrors these days.
One counter to that is Buffett doesn't try to time the market, he finds stable, productive businesses and buys in. Housing might collapse but in 10-15 years he will be profitable. Most homeowners aren't looking at things with the same perspective.
But that shouldn't be the alternative for these individuals. The alternative should be doing the same thing somewhere without a tax. Say... Toronto.
Reasonable doubt is the criminal law standard, and is relatively hard to achieve since any credible theory by the defense can undermine it.

This is a civil lawsuit, so probably goes to preponderance of evidence. That's a lot easier--the plaintiff only has to prove it's more likely than not that the defendant was liable.

Jury or not doesn't really come into it, except that formal criminal trials (above an infraction, at least) always involve a jury.
Wow, you're really doubling down on making stuff up and then being critical of it.

My sister is an example of someone who studied gender studies as an undergraduate, and she's currently a quite successful high school English teacher.
Ancient Wisdom from the Neural Network
Actually, there has been a diplomatic problem lately because some of Erdogan's guards beat up on protesters near the Turkish embassy some weeks ago. The Washington, DC, police arrested some of the pro-Erdogan group, some employed by the Turkish government and some not.
Thanks for posting this. We'll think about how we can make that search UX clearer. And when we have C/C++ support, I hope you'll find it super useful.
At many colleges the CS program is watered down, similar to how watered down the math curriculum is in high school. You barely need a half a year of Algebra to graduate and when you get to college you're doing HTML and very simple C++ (well, C using cout/cin) programs that you're really just copying from the other students.
1 also belongs to 'all integers from 1 through 10'. Is this also a category? (I assume yes). How is this category expressed in Luna?
It's built on top of GHC... you could try writing your filters in haskell; I imagine it would be similar.
I completely understand that, but we care about it very much and don't want to have problems with it. Because of that I asked about help with the naming :)
There is no data to make this assertion about computer driven vehicles.

There is little basis to declare human drivers 'fundamentally unsafe' given the proportion of accidents pales in comparison to the gigantic volume of vehicles on roads worldwide over varied road and traffic conditions.

It can be speculated automated vehicles may require constraints on roads in which case it becomes apples to oranges. And human drivers equipped with the kind of technology and sensors on self driven cars would be much safer.
The What, Why and Wow Behind the CoreOS Container Linux
This is true. Discipline is very important in learning process. Another important thing is - completing at least primary education in mother tongue which improves thinking process. Sadly these days parents prefer international public schools.
No. I'm in product management, and I think that the root cause is that I do not deeply care about the product that I manage. I'm looking for a similar position, but at a company that builds something that I would use intensively myself, in a domain that I consider myself an expert in (which is not the case now, tbh).

Then again, I believe that no matter how much you love doing something, if you're forced to do it 40 hours a week every week, everything becomes a drag sooner or later. So I'd love to work less, maybe 4 full days a week. Sadly this is not acceptable for my employer (an early growth stage startup).
Wasn't that a concept paper? They did analysis then; they produced no actual material or device. Now they have. 10 years seems like about the right delay between conceiving of a material, and creating it?
it does, because you are clearly just a snob. its so obvious that people are just looking for reasons to hate javascript when they post shit like your dumb example. though i concede that is a pretty hilarious "wat". virtually all the dumb "gotchas" never show up, and the real gotchas are learned early, just like other languages. you are like a classical musician who thinks every other kind of music is not real and easy. the same damn attitude. go away