skysight-inc/HackerNews huggingface dataset:
I don't see why this was downvoted. There are probably still many applications in the wild that use Objective-C 2 garbage collection. The garbage collector scans the stack and global memory for references, and recursively follows strong references to find out which objects are in the reachable set. This may touch a lot of memory pages that were paged out. So, even if the garbage collection algorithm does not require application to be in physical RAM, probably many pages will faulted to physical RAM as a part of garbage collection.
> pushing virtualenv and "self-contained" apps as the one solution is a diservice to the community.

Wow. :(

> There are valid reasons to rely on your OS, assuming you have an homogenous deployment target (same OS, maybe different versions):

I’d love to hear them.

> lots of people argue for virtualenv because some versions may be incompatible. The problem here is the lack of backward compatibility of packages, and frankly, if you need to rely on packages which change API willingnily betwen e.g. 1.5 and 1.6, or if each of your service depends on a different version of some library, you have bigger problems anyway.

Well, you said there are possibilities of problems but that they shouldn’t matter in an ideal world. Maybe you’re okay to take the chances but I’m not. Every code I deploy has been tested rigorously against a certain set of versions and that is the only combination of dependencies I’m willing to consider “working”. UnitTests with different dependencies are just as worthless like integration/functional tests against sqllite instead of the same DB type as in production.

There’s even the possibility that your code works because of a bug and when that one gets fixed, you app goes south because of some weird side-effect.

> any sufficiently complex deployment will depend on things that are not python, at which point you need a solution that integrates multiple languages. That is, you re-creating what a distribution is all about.

I’m not sure if I understand what you mean, but yes if you want to use certain features outside the Python ecosystem, you’ll have to buckle up and package them yourself too. “We can’t do that, package XYZ is missing/too old.” isn’t really a good excuse to not do something that is important/good for your business. And that’s one of the main points of the article.

> virtualenv relies on sources, so if some of your dependences are in C, every deploy means compilation

That’s wrong if you go the way described: The virtualenv is packaged with the code. Build tools don’t belong on production servers.

> I still have no idea how security is handled when you put everything in virtualenv

Just as everywhere else. If you think it’s okay to tell customers that their data has been hacked because debian was to slow to issue a fix, be my guest. We can’t afford that. What happens on my servers security wise is _my_ responsibility and using ancient versions of Python libraries just to be able to blame others for FUBARs is not a solution in my book.
Google Doodle HTML5 zipper celebrates Gideon Sundback
The intent is to use the water in orbit, but they're saying they'll bring the platinum down here. If you're already in earth orbit, going back to the surface doesn't take much energy.
If you're opposed to illegal immigration, and you're also opposed to changing the immigration laws so it's easier to immigrate legally, you're opposed to immigration. Let's just be honest about this.
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Rather than revenue diversification, I was thinking more about product diversification. With core products like GMail, search, Plus (hah), and Google Apps, if any one of those takes a catastrophic plummet in traffic, their revenue wouldn't crash completely. In their early days, if a competitor took over search, they would have no remaining products that continued to generate revenue.
There was this nice piece by the NYT about the history and traditions of comma placement recently. Interesting read.

http://opinionator.blogs.nytimes.com/2012/04/09/fanfare-for-...
Maybe I'm a bit cynical, but to me this doesn't even sound as innovative.

To say it better, I don't think this will enhance the reader's experience, so maybe I see it more as eye candy (a well executed one, no doubt) than something really useful.
Pinwheels.
No, it doesn't suffice. You are using an undescribed and unspecified algorithm to solve a specific instance of the Knapsack Problem.

To the best of my knowledge there is no such thing as "The Knapsack Algorithm." (Except in the (now broken) Knapsack Public Key Encryption system)

The only references I've found in a quick search either incorrectly use the term "Knapsack Algorithm" when they actually mean "Knapsack Problem," or they simply refer to the obvious depth-first recursive search.

So the question remains - what algorithm are you using? Depth-first search? Dynamic programming? Greedy algorithm with heuristics and early cut-off? Simulated Annealing? Hill-Climbing? All of these can be used to find good solutions to an instance of the Knapsack Problem.

The auxiliary question: Given that the Knapsack Problem has been shown to be NP-Complete, what will your code do when given a hard instance?
Thanks for clearing that up. I ment to start with animated graphic novel (fixed now). I didn't even know about Visual novels and the exact meaning of the term graphic novel was also new to me.

When I was a kid we used to read Lucky Luke, Asterix and Obelix and Donald Duck. These days it seems that Magas have taken their spot. There's a pretty large bookstore here: Hugendubel, which provided reading corners; similar to a library, except all books are new. You can often find many kids immersed in Mangas.

To me it's like the following: if you animate a manga you end up with an anime. If you animate a comic you end up with animated cartoon.

But the presented product here is still different. It's like a hybrid of both -- or am I mistaken?
Well as far as my knowledge goes, any sequence of steps to solve a problem is an algorithm(some are simple algorithms and some are complex). In our case we couldn't use fractional knapsack since we couldn't break images.
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A nice little artistic touch: If you go straight down from the beginning of the Jules Verne logo, there's a bunch of corals which fill the Google porthole perfectly.
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Yes, my problem is that a lot of these "5 things managers should do" lists describe a particular kind of bad manager (the article seems to be talking about an egotist).

If these articles don't give a bit more context, then they are easy to misinterpret.
Apparently, billionaires who made their money by inventing things people want have a tendency to do other cool things that benefit people.

Billionaires who got there by, say, making giant bets with the downside backed by the public purse, tend to be absent from these sorts of ventures.
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ML will be a paid upgrade right? So people who paid for Lion are worth nothing?
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This is very true (I'm UK based too).

When I did my CS degree we were taught Java and that was all most people knew. A few also knew PHP because they were interested in webdev or Visual Basic/Pascal because that was what they had done at A Level. I don't think anyone on the course knew functional programming until we did a module in it.

This was particularly pronounced when we were given an assignment to do where the tools to be used were not specified but it was to basically build a shopping cart system. Obviously the best tool to use would be either something like PHP or to use Java but with JSP etc.

What the majority of the students produced was a AWT/Swing application to control the shopping cart and used the file writing classes (FileOutputWriter etc) to output HTML.

Perhaps the difference though is that young developers would expect to be re-taught a bunch of different stuff when they started their first job.
Solar is a better bet for energy in near earth space as opposed to batteries. That changes as you go out to the Belt and Mars, but even then a radio thermal generator (RTG) is probably better.

If you want to ship energy to Earth surface you want solar again. Generate electricity from panels, convert to microwave, beam to receivers on Earth, convert back to electricity, problem solved. And no, the beam density would not high enough to cook anyone.

Google "space based solar power" for more.
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That’s exactly how we do it too. The only difference is that we don’t install the app using Fabric. Instead, puppet installs the deb with the app into the directory.

Maybe I should add a “running apps as root” anti-pattern, but this its 2012 after all, everyone should know that, right? :-/
They wrote this code during an interview -- and yes, they got the job
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Yes, the steps used to solve the problem are indeed the algorithm... But the question stands: what algorithm did you use?
We are using Dynamic programming and you are correct, knapsack is a problem but since the most common solution(and widely used) is using DP, we sometimes intermittently use the term Knapsack algorithm with DP algorithm to solve Knapsack problem.
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It's definitely wrong.

According to [1], 614,631 kg were mined in South Africa (which accounts for about 80% of world production) between 2002 and 2009.

Density of platinum = 21.45g/cm^3 = 21.45 * 10^6 g/m^3 = 21.45 * 10^3 kg/m^3

=> total volume mined 2002 - 2009 = 614631 / 21450 = 28.65 m^3 approx.

So that's about 28.65 * 35.29 = 1011 cubic feet, JUST in South Africa and JUST between those years.

Other estimates visualise the total ever mined as a cube of 20 feet per SIDE ([2]), which sounds a bit more like it, given the numbers above - but still feels a little bit low.

[1] http://www.indexmundi.com/minerals/?country=za&product=p...

[2] http://money.howstuffworks.com/question213.htm
If it's just a flag you can ignore, I think that someone will.
Or 3) You are an excellent developer who understands the cost as well as the benefit behind optimising for performance and memory.

Is the time spent optimising better spent building a new feature (i.e. the money saved through efficiency will be less than the value gained by doing something else)? Is the optimised code going to be less flexible in the face of change? Is the optimised code going to be less comprehensible for future maintenance? And so on...

Folk who spend their time making sure that everything has as small of a footprint as possible are a royal pain in the many situations where "small footprint" is not the biggest cost of the system :-)
Related: http://www.newyorker.com/reporting/2007/12/03/071203fa_fact_...
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Right, that makes sense. Thank you.

What would happen if I encoded a large integer factorization instance into a Knapsack Problem and called your system?
Well, it's called Search for Extra-Terrestrial Intelligence, not Communication with Extra-Terrestrial Intelligence. At least right now they aren't sending anything, and I'm sure there will be plenty of time to discuss this issue before and if they ever find anything.

I agree with you that it makes sense to be careful. Sending high-powered directed radio signals before we really know what we're dealing with does sound like a bad idea.
Flickr has new image sizes
From now on you can download a lot of new image sizes from your Flickr photo's. Also available in de API.
The sun is an extremely diffuse energy source. If we wanted to power the US using a power source with the same volumetric efficiency as the sun you'd need a device that's about 3000 cubic miles in size.

Assuming a 100 foot tall building, that would be a building 400 miles on each side. For comparison the amount of solar energy delivered to that same area is 20 times higher! (Assuming you could capture all of it.)

http://www.wolframalpha.com/input/?i=%283.3991%C3%9710^12+wa...

So to make fusion practical for human use it's not enough to duplicate the sun - they actually need to make it work far better than what happens in the sun. That's one of the reasons they use D-T reactions instead of H-H - it's much faster.
It's trivial to parse when statements end in my head, because I write code in a structure that makes it unbelievably clear where statements begin and end (with or without semicolons.) Knowing that is of prime importance to human readability, so it has to be dead obvious or the code sucks.

I'd love to leave it to the interpreter, but the interpreter doesn't put a semicolon at the end of every statement for me, as I write them naturally. It puts a semicolon at the end of... most statements.
yeah sometimes I'll boot into Windows just to clean the drives :-(
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This reads almost allegorical to me.
From the Times article:
this one has the distinct advantage in that it has technical savvy and adequate capitalization to get started.

Gotta feel bad for the guys who provided the "inadequate capital" to the earlier companies that never had the "technical savvy" to make it happen.

I see the imaginations of the hackers here burning, and it excites me. I only wonder if the human species as a whole isn't too cynical to try risky space ventures again.
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I found vcsh to be very effective. Files live directly in $HOME but the .git repository is in a special directory.

https://github.com/RichiH/vcsh
What's your position on this? I know just recently TechCrunch posted a similar, but different opinion on this (which claims that you're better off learning to code yourself)?

http://techcrunch.com/2012/04/15/stop-looking-for-a-technica...
Don’t run your daemons in a tmux/screen

Wow, I always though of myself as an idiot for doing this. But that is for some not yet launched thing. Who on earth does this for a production website?
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Because Apple is the "Gatekeeper" of all software on the platform. They have full control over what goes in the app store, and what doesn't. No longer will you be able to go to a website and download some no-name-joe's software. It HAS to be on the app store. That's the direction it's going in. It has nothing to do with the cloud, being able to redownload your software, view source code, etc... It's about having the choice of what software you can and can't use being controlled by them.
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http://ontwik.com/python/django-deployment-workshop-by-jacob...
This leads to scary thoughts on using this for military purposes
I have to say, I was experiencing a shitload of disk thrashing on my iMac, and eventually decided to replace the drive. So I did the whole ridiculous suction-cup routine (yeah, that's Apple "elegance") and replaced the drive.

Problem resolved. Not that I don't still get inexplicable pinwheels, but nothing like before.
> Ultimately, you want to have the whole thing in a
> UIScrollView (or a UITableView) to avoid such problems.

Or you can just change the class of background view to UIControl and wire it so it calls resignFirsResponder on inputs if touched.
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The public might not endorse risk that's Government sponsored, but I doubt we'll ever have a shortage of people willing to take extreme risks in the name of exploration.
Thanks. At least there's some indication that it's getting better.

Too bad the providers have to degrade the experience with their crap, instead of just providing additional apps if they feel it's necessary.
It sounds attractive to me, I like the idea of separate animated panels. I also think the idea of localized animation, to coin a phrase, could lead to some interesting presentation methods in more traditional books.
مسلسل بين الماضي والحب الحلقة 82 
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بين ,الماضي, والحب ,82

http://video.qlbak.com/11340.html
Sure E-mail, but not things like media storage.
I've occasionally taken to send out a 'nano' CV - with my contact details, a paragraph of text and 3 URLs. My Stackoverflow account, Github, and my tech blog.

I've also been responsible for hiring developers over the last five years and if I saw something like that, and there was anything useful to see on those links, the person would be at the top of the shortlist. The only time I ever came close to it - I offered the guy a job within the first hour of meeting him. I've also worked with that guy again since then.
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Medigram (YC W12) is hiring a Backend Python Software Engineer
About us:
Medigram is a small team of passionate people solving the most difficult communication problems in healthcare...

About the role:
Medigram is looking for an experienced engineer and hacker to work on our core system architecture and product who will play a key role in product development, from concept to launch. You will be writing code that deploys to production several times a day. You should be comfortable getting in over your head learning new skills and the latest technologies including but not limited to Python, Django, Memcached, MySQL, NoSQL.

We have a fast-paced environment with the right balance of quick, iterative development and more deliberate, smart architecting. The ideal candidate should be ready to take charge and lead features and design.

Key responsibilities:

* Help lead or direct back-end development and server side engineering.

* Develop and deploy new product features.

* Scale and tune the REST api that supports our mobile and web apps.

* Prototype experimental features.

* Manage and implement security features that protect health information.

What we’re looking for:

* Hacker strong with CS fundamentals from Bachelor’s in CS, engineering, related discipline or equivalent industry experience

* Expert with at least one programming languages, and very good with many others.

* Know Python very well or have the ability to learn it quickly.

* Very experienced with web application deployment and software design principles.

* Strong experience with web services including REST.

* Great understanding of SQL databases, MySQL, PostgreSQL.

* Strong unix/linux system administration skills.

If this sounds like you, please email yuhao@medigram.com with your resume/github/stackoverflow/quora/anything-that-you-think-is interesting.

Note, at this time, we can only hire someone willing to move move to Palo Alto, CA, and we cannot sponsor foreign visas.
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I would, actually. All iTunes is is an MP3 player, remember, and WinAmp did just fine on 90s machines.
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You could say the same for graphic novels in general. Why have pictures if text can suffice? Also take a look at Andrew Hussie's online graphic novel Homestuck. It features not only animated (in flash), but also interactive segments. These serve to give better representation to the action than simply explaining all the stuff that happens. Then he goes back to posting large blocks of text with only a static image on top, when exposition and clever word-play is in order.
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Stop talking about job titles. Stop talking about the things that you do.

Instead talk about increased ROI, more conversions, decreased support costs, better PR, etc. Talk to potential customers about their problems first. Then give them solutions to their problems.

Ideally have stories from previous customers about those areas. Stories sell much better than skill lists.

For example a while back I sent this letter (lightly edited to removed some identifying material).

<quote>

Hi $joe,

Thanks for talking to me last week about $company. From our chat it looks like your biggest problem was transitioning from startup geeks to long term customers. I think we can help.

We worked with $similar-company who had the same sort of issue reaching their long-term market. After helping them re-build their on- and off-line marketing materials their sales team saw a big increase in qualified leads, which helped them save money and focus their sales folk on some new markets. Conversions also increased significantly.

If you like I can put you in contact with their CTO and head of sales who can talk about their experiences with us.

If you'd like to talk about this further we should meet up. I could come and meet you next Friday afternoon in your offices. Drop me a line if this sounds interesting or if you have any further questions.

Cheers,

Adrian

</quote>

Note how I'm not talking about user interviews, analysing their search engine results, a new visual design, user testing, new CMS, web design, HTML5, jQuery, agile development, etc. Despite the fact that we did it all for $similar-company.

Instead I'm saying "You told me this was you're biggest problem. Look we solved it for $other-company. Here are some people you can talk to for verification. Here is what you should do next".

Find out their biggest business problems. Show them you can help them solve it. Leave out the details of how until the last possible moment.
You still don't say how you're LOSING pixels. If you had your way (a widescreen tablet) they'd simply chop off the extra pixels to change the aspect ratio. You gain NOTHING.

You also fail to say why putting controls, captions, and chapter indications in the empty space instead of OVER THE VIDEO IMAGE is "preposterous." How is having the video obscured with overlays BETTER?

In short: Your response fails utterly to support your claim.