skysight-inc/HackerNews huggingface dataset:
I liked the way the article compared the two approaches (CF and text analysis) and the code was interesting.

At Conversify[0] we literally tested these methods last week(!) We help e-commerce companies with machine-learning optimizations of which a recommendation system is one. The average shop uses the standard tools for recommendations which are terrible, with some intelligence it could be a very important way to increase sales and conversion. [/end-plug]

This is what we learned. We've tested three approaches (all on sites with enough traffic):

(1) CF based on buys in combination with/without profiling

(2) CF based on purely clicks in combination with/without profiling

(3) Text analysis (sklearn, TF-IDF)

We had the best hopes for buys then clicks and as last text-analysis. It was exactly the other way around ;-).

(1) Buys has the drawback that the relationship of profiles to products is a lot to a few most of the time (relatively).

(2) Clicks has the same drawback but we can also see clicks within one session. This makes clicks somewhat better because shoppers often compare multiple products that are alike. This is valuable info.

(3) We didn't think that TF-IDF had evolved the last couple of years this much that we now can do an analysis with a few a lines of code with these results. They were stellar. We tested the outcomes with the business owners as well as customers (we didn't say which method generated which results) and they all went massively for text-analysis.

Here's our outcome for a random product from one of our customers (with a combined buys/clicks recommendation): http://i.imgur.com/lEYYIh9.png

That being said: we are working on a combination of all three methods. We think that text-analysis is for the first filtering of related products and that the CF methods are for ordering of this set. Also using weights for the different methods are useful.

Besides that we are developing a way to distinguish in an automated way between substitute products (samsung vs iphone) and complementary products (charger with a phone). This could be accomplished by using more CF than text (and specifically bought products within sessions). Our first results are promising.

[0] https://www.conversify.com
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Why Ferris Bueller Never Existed
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Only on a message board would someone think I said that. We are talking about rearranging your whole life. I am most certainly not saying going to the other extreme.
Yes, a single global line build-up doesn't feel solely like your responsibility. It's like a tragedy of the commons scenario.
I'm proficient in Qwerty, Dvorak, and RSTHD [1]. I also learned Colemak at one point and was proficient at it, but learning RSTHD replaced my Colemak muscle memory (which in itself is odd and interesting). Right now I use RSTHD when I have my ErgoDox, Dvorak on a standard keyboard, and Qwerty on mobile. Some additional things I've found:

* It's possible to be proficient in multiple layouts at a time as long as you use all of them on a regular basis.

* Furthermore, it's possible to separate your muscle memory for a layout from your muscle memory for the physical keyboard enough to be able to switch between keyboard layouts basically at will.

* Getting used to moving around punctuation is much harder than getting used to moving around normal letters for some reason.

* If you use different keyboard form factors (for me, ErgoDox vs. standard keyboard), your muscle memory for the layout is tied to your muscle memory of the physical keyboard itself. I can't type Qwerty on an ErgoDox but I can just fine on a standard keyboard.

[1] https://xsznix.wordpress.com/2016/05/16/introducing-the-rsth...
How many of these criteria [1] does your idea meet?

1. https://www.tillett.info/2016/01/27/a-good-idea-checklist/
Starbuck's growth chart by # of stores
Does what your ancestors might have done really make you more deserving of a better life? I understand that it gives you more chance of a better life, but just by the luck of the lottery of birth, not by any actual fairness.

Did civil war soldiers really know they were fighting for high wages 150 years later? Were taxpayers really choosing to pay tax because they expected it would give their grandkids a higher salary, or because it was the law and they'd be fined or imprisoned if they didn't? Every country had wars, and they're just meaningless wars. They weren't fought for the good things we eventually got. They were fought for a meaningless feeling of needing to support whatever group each soldier belonged to.

If you don't want other people to use your country, how do you tolerate babies being born? They never contributed anything. They're just like immigrants - appearing and competing with the existing people.
OP: I thought this was a pretty interesting depiction of exponential growth and the infamous "cockroaching" of startups, since it took about 15 years of operating for them to really kickstart their growth
How can an virtual object (a photo of a woman seen on a monitor) be objectified? The model meant that photo to be used as an object (looked at). If she wanted people to understand her personality more, she would have just written a book.
LA? NYC? Miami?
Yeap. Afaik you are not even allowed to virtualize OS X on an OS X server. If you could I'd assume AWS et al would do so for CI and such.
doesn't fit for a "Show HN:" though: https://news.ycombinator.com/showhn.html
Here's an alternative: have a warm smile on your face, but don't make eye contact.
At least the lab data should be confirmed by observing comparable real-life checkout scenarios. Managing variables would be challenging in a genuine retail setting, but it probably can be accomplished well enough.

The fact that the outcome will vary in different store environments isn't a trivial factor in evaluating the claims of the experiment. IOW the findings may apply in some cases but not others, which is an important kind of detail to consider.
We have been working on this off an on for a while and that's definitely an option.
You made a claim about violent crime and then posted a link containing information that doesn't support your stance. Your link lumps crime and accidental injury together. The thread was about violent crime.
I'm afraid it's a London thing. Lot of fear and attitude in that city.
There's always time to launch your dream
...or teaching what they say are their ways to others. I suspect that the way some have been able to peddle their "pay no taxes" seminars and books for years without getting busted is that they themselves know that their methods do not work and so they actually do pay their taxes.

This does not occur to their gullible students, who take their teacher's continued lack of indictment as proof that the methods work.
Speaking totally from a selfish standpoint, these policies against immigrants don't make sense for the American worker either.

H1Bs lower the wage of American tech workers because it fills the workforce with those who can't ask for more.

Cracking down on illegal immigrants just forces them underground away from the ability to demand workers rights. This puts the American worker, who demands minimum wage, safe work places and overtime at a disadvantage.

I don't claim to know what the perfect policy is but as it stands the systems are set up to benefit the employer in every case.
> a lie (This is not what happened)

You're naive. Read up on the Kitty Genovese murder and similar incidents.

It's not even that people consciously decide they don't give a shit. They just assume that surely one of the dozens of other people within earshot will take care of it and save them the awkwardness and bother.

But everyone else is thinking the same thing. So no one takes care of it, and somebody dies.
In the states I found people will look you in the eye when oassing by and some will say hello. Most will respond back if you say hello or how are you.

When I'm in Mexico it's almost rude not greet someone with a customary "buenas dias/tardes/noches"

In Japan rarely people will look you in the eye period.
A reprieve for Moore’s Law? Work on gallium nitride semiconductors
UTClock – Super Simple UTC Clock for Mac OS X Menu Bar
Does this actually happen? Can any American parents here confirm that they actually do structure every free minute of their kids' time and never let them simply run around and play on their own?

We raise our kids kinda like the author describes as the "French" way. You know, taking them along as we live our lives, and letting them play however they like. As it happens, we do actually live in France, but it never occurred to me that we were doing anything particularly novel.

If anything I thought our way of raising kids was the "American" way, and that the French are too stifling in the way they confine their kids to pushchairs with pacifiers in their mouths to sit quietly in the corner until age 5.

The only case I can think of among my acquaintance of the overscheduling described in the article was an English mother. Still, I wouldn't use that as an example to base an article like this on.

In short, I don't buy it. Surely nobody actually thinks that is a good idea.
Shoot. How can I delete the post?
Well yes and no. Let's take another example, voting. I think an ideal democratic process should be that people vote selfishly for their own "well-understood" interest. This "well understood" is crucial, it means all the "therefores" in this logic: one will vote for one's own interest, therefore in one's country's own interest, therefore in the world's best interest, therefore in our universe's best interest.

The same for my kids: I want them to have an happy life, therefore I teach them the values that will help them achieve this modest ambition, and these values are modest but also useful for other people: be friendly, open minded, accept life as it comes to you, do not value money for more than it is, do not expect too much from others, do not let your "underbelly" drive your will or your life, read good books, learn how to "garden" friends, be honest, serious, finish what you've started, etc.

To me all of these values are stubornly selfish: they draw the surest and well-know way to a happy life, for a normal human being.
It's a kind of funny those images look nice on high res screens.

Some time ago I experimented with 16-32 color images on websites. Because of high res screens they look great but save a lot of data.
Really pleased to stumble across your comment. Don't be disheartened. People who support boycotts often come down very hard on those who work together. Kolhakavod.
So let's say you had a gym session at 8 am, and now you have to drop your kid at school at 8, according to your words "kids should understand that you have your activities" And you can just go to gym while your babysitter will cook breakfast and drop them at school? Why have kids then if you can't and don't want to change something in your life to be with them more?
I agree that being locked to one employer is a kind of market distortion. Would you say non-compete clauses are too? I know they're not enforceable in California, but other states effectively lock local workers to their company because they're not allowed to move to another company in the same industry within a year or two of quitting.

Should we try to prevent companies from legally hiring local workers with non-compete clauses in their contracts? I think so. And I think it's a bigger issue than immigrants from the point of view of artificial wage distortion. Yet somehow these threads about immigrant workers get a lot more enthusiasm than threads about non-compete, so there's obviously something else to it. And I can't see what else besides the GP's "I'm an American".
> I have special love for are the Chilean passport and the Dutch passport (which I have) [...] The Dutch passport because it is very difficult to obtain (and requires you to give up all other citizenships unless obtained by birth)

Ok, but, aside from being hard to get what other benefits would it have say over a German or other European one?
I think lots of people were fooled by that link bait article, but even it doesn't say violent crime is lower in urban areas.

Now it’s true that the risk of homicide is greater in big cities than it is in the countryside.
Yes unfortunately human biases can override even simple logic. Perhaps your idea would cause workers to earn more their supervisors which may be a cultural no no
Holy shit laughing my ass off.

10/10
I don't think looser typing is the current trend at all. I think the opposite is true: there's a movement towards more typing, particularly among the languages that have traditionally been the most dynamically typed.

- Type hinting is a significant new feature in PHP 7.x: http://php.net/manual/en/migration70.new-features.php

- Python 3.5 introduces type hinting: https://docs.python.org/3/library/typing.html

- Ruby is talking about possibly adding a static typing system to Ruby 3.x (this is very early stage, but there appears to be interest): https://codon.com/consider-static-typing. Also 24 days ago Matz talked about possibly adding type inference to Ruby3x3: https://bugs.ruby-lang.org/issues/9999

- Flow and TypeScript add types to JavaScript.

- JavaScript is adding more structure to its type system with ES6 classes.

- Newer languages such as Swift and Dart are certainly more typed than the Python/Ruby/JavaScript generation.

- Rust is typed to the max.

I guess what I'm saying is that if you like type systems, the future is bright. :)
2 Ways That Can Help You Write Cleaner and More Efficient Code
Then you've decided that you value your convenience over strangers' lives. As I said above, look into the Kitty Genovese murder, for example. That's your decision to make, but don't try to dress it up as something else.
I've been involved in a number of "community building" initiatives. What I've learned is that it is easy to start the community, but soon enough people start getting political and the infighting begins - it often only takes one or two people to ruin it for everybody else.
As a Swede coming to SF, it was a refreshing eye-opener how some people actually talked to strangers at all. Here in Sweden, it's literally just panhandlers, salespeople, drunks and the mentally deranged who talk to strangers in public. Every time I have been abroad, I try to bring some of that spontaneity and sociability with me back home.
Whats up with HN's link deduper? It seems to randomly not work.
This was my biggest surprise in becoming a parent. I had expected that "Me" would effectively come to an end and that "Daddy" would be it from there on out. Everything would revolve around the kids and there would be no time for us parents to do anything just for us. Better get it all out of the system ahead of time because once the kids come, that's it.

But I was completely wrong. Our life just sort of carried on as usual, but with kids along.

Number One had seven stamps in his passport before his first birthday. Any given Saturday, you'll find the kids playing in the sand in the forest next to the boulders that Mom & Dad are climbing. Kids are just that portable.

I'm sure you could still arrange your entire life around your kids, but in reality it just isn't necessary.
Show HN: Caco – Node.js generator that supports both callbacks and promises
I'm more interested in which passport adds the most most visa free travel to a given passport. Maybe Russia would be best given a US passport, since Canada/USA/Germany are sure to have a great deal of overlap. You can take the set difference of the passport you have and all of the candidate passports. Whichever candidate yields the set with the highest cardinality is the passport to pursue.
It doesn't need to be complicated. Just a rule that the employee must be paid a minimum of the median average wage of any similar domestic employees in the company, or the market average if there aren't any.
Canadian passport does not give you free healthcare; it is completely unconnected with citizenship.

Health care, like most thing, is the responsibility of the provincial governments. You have to be a resident of a province for a period of time, usually 6 months, to get free healthcare in that province. Provinces do cover out of province travel and some limited international travel though usually not the US -- but that all varies by province.

If you are a non-resident Canadian citizen, you will not be covered and have to pay full even if you are treated in Canada. For example, if you move to the Bay area for work, go home at christmas and break your leg, you will be out of pocket the total costs.

However, if you a resident non-citizen (i.e., PR, TFW, Student), you will be covered after your residency is established.
Dancing alone in your living room, I suppose.
Going Anti-Postal
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That's Unitarian Universalism, for the benefit of anyone trying to Google it. :) But yeah, UU seems like a really solid substitute for the traditional religious community. Shame it isn't more popular.
dw's society can produce goods at lower cost than without fw. But really there doesn't need to be any benefit to dw's society unless dw's people consider themselves privileged and deserving a better life than the world's poor simply because they happened to be born into it.
You just made my life better, thank you!
Higher throughput necessarily means lower average latency. Little's Law. What the single queue helps with is reducing the variance of latency. That, and it makes handling more involved interactions easier to do without inconveniencing people waiting behind them.
Using Slack as a Personal Knowledge Hub – Preslav Rachev
For what it's worth, I think "same to you" is a perfectly fine reply to "good morning." So is a smile or nod.
Nuance? You are flat accusing him of being racist in the laziest way. Let me explain the nuance of dropping a nuclear bomb on a jaywalker: there is no nuance.
Dear Coursera,

Thanks for all the free courses for the last couple of years. I understand the need to be profitable and make this a real business so you don't have to fire all your good employees who have helped provide free education for so long.

I for one welcome what you are doing - as I understand that's is impossible to sustain a free model forever.

All the best!
There's only one solution to prevent this, if you're operating a server that might be of federal interest (which might even be running an open proxy or TOR relay):

1) Rent an entire rack with a 19" rackmount UPS, as well as locks connected to the server to signal if the rack has been opened, and motion sensors, as well as a compass

2) If either the power from outside goes down, or the lock/cage alarm triggers, or the motion sensor/compass detects motion, wipe the RAM section that contains the HDD encryption keys and power down the machine.

Why a compass? Because in case the cops try to move the entire rack carefully (to not trigger a motion sensor with false-alarm filtering), and they rotate the rack, the compass will detect it.
> So, to say it's a lie without any evidence to the contrary is unconstructive.

Sorry, it is of course a lie. You shouldn't need evidence.

If you think this sort of thing happens you are a very very broken human being.

'You' are the actual problem, because the people in these stories are not real. But people who believe these stories are.

I shouldn't need to link evidence but I will in the hope that perhaps the truly awful humans who think people will knowingly leave a screaming a grandmother to die in the cold might change the awful way they think.

http://www.theglobeandmail.com/news/toronto/toronto-womans-d...
In a big city "neighbours" doesn't mean random people on the street but usually other people in your apartment building. You can say 'hi' to them.
The reality sting theory try to describe is more general than the reality we can observe. It's like finding the primes for what is possible. The meaning of the primes on the next level up is moot.
Nope, that's not what I said or meant. Your a family and you balance. We are talking about people obsessing about scheduling and removing all adult time.
They build an open source CPU to run an open source OS namely Linux to make IoT applications possible. Okay,

But then they mention in the beginning with Linux you need minimum 8 MiB Ram, because "less is awkward".

To be honest 8 MiB is a lot for embedded, for IoT. Normally we deal with way less then 1 MiB. Especially in IoT I need low power and less components. A state of the art Cortex M0 has somewhere of 256 KiB of Ram. With that they basically prove, that Linux is not suited for IoT. Is that the point they want to make? Really?
I actually would love to have ADRs for Clojure - that's an exceptional idea. The design wiki pages often record much of the decision record, but it's quite common for them to be out of date by the time something is done. Will consider more.
This is how and Estonian or a Finn would feel: http://finnishnightmares.blogspot.com/
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I never actually had that shock, and I grew up just north of NYC (near White Plains, a quick train ride right into Manhattan). You quickly learn to size people up and know who is likely to try to sell you something, often by how they dress, their mannerisms, and how they approach you.
It's not really necessary to use turtlebot, you can use ros with whatever you want, it just won't work off the shelf. Setting up your own robot with ROS is a great learning experience and a great way to get familiar with it.
This is probably a naive question: can we input a bunch of particle interactions into a deep learning system and train it to predict the probability of future interactions? It would be like a "black box version" of physics. If we can predict, then we can find a more elegant mathematical notation and a more intuitive physical interpretation.

Machine learning can observe and learn patterns that are more complex than humans can grasp. What if the perfect Physics theory is more complex than humans can understand and possibly quite unintuitive in meaning? Then we won't like it and steer away from it, and that would be a bad thing in the end.
Actually its leviooosAAUUUGHH. https://youtu.be/FWtO0cfgewY?t=19
Ohhh... Rest assured. My first job was fixing bugs in existing mobile game. Here is the code:

// Method in some class in squirrel script

function Move()

{

// ...

Jump();

// ...

}

So... Where is the implementation of function Jump? In this class? Or in C++ class, which might add some methods to squirrel? Or it's in base class of squirrel? Or in C++ class of that base[squirrel] class? Also methods might be overridden. So... You need to find last implementation of that function.

You also need manually build an inheritance tree.

It's impossible to navigate in it's code. While you can use Sublime and it's Find. You still need to look through all the usages of function Jump in entire game.

Squirrel made me love all static typed languages with it's instant jump to implementation of some function.
The right to repair my drone (and how I saved $50)