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jdhuang

Re:Here Come China's Drones on Saturday March 02, 2013 @09:36AM (#5309580)
We already have automatic ground turrets that use heat signatures and computer vision

http://singularityhub.com/2010/07/25/armed-robots-deployed-b...

But at the end of the day, everything loses against a single nuclear bomb.

Re:Why Watching DVDs on Linux is Illegal in the USA on Saturday March 02, 2013 @09:08AM (#5309488)
Curious to hear whether these weird Linux-asymmetries apply to Blu-Ray or online digital media (e.g. Hulu/Netflix) too.

I would be willing to accept the fact that DVDs were invented so long ago that some of their restrictions are a little archaic.

Re:Ask HN: What is your best online purchase? on Saturday March 02, 2013 @09:01AM (#5309475)
Yeah, heh.

I totally Amazon Subscribe-and-Save all my toilet paper now (but I don't always like to admit it)

Re:Please critique our open source PaaS website on Saturday March 02, 2013 @09:00AM (#5309472)
I'd be curious to hear who you think the target audience/demographic is for your landing page.

In particular, I find that the page is succinct at describing "what" AppScale is but not "why" I should click either Join or Download within the first 45 seconds

Re:Why teens are tiring of Facebook on Saturday March 02, 2013 @08:55AM (#5309462)
What's crazy is that Facebook has only been a public open-signup website for ~6 years, and it's so tempting to assume it will be around and popular forever -- I mean, why wouldn't it?

But at the end of the day we really have no idea what the world will be like in 15 years.

It only took MySpace 3 years to fall out of favor.

Re:Why Python, Ruby, and Javascript are Slow on Saturday March 02, 2013 @08:49AM (#5309448)
Interesting presentation, but it can't be the whole story. Even projects like SciPy which use the most rudimentary data structures (basically just a large array of floats) and algorithms (sometimes just looping through the elements in order a few times) see a considerable advantage when rewritten in C.

http://www.scipy.org/PerformancePython

Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:37PM (#4393245)
Heh. Not the first time it's happened :P
Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:37PM (#4393241)
It's actually based on the ambient Wi-Fi signature of the airwaves around you. There is no image recognition involved!
Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:34PM (#4393224)
In our experience, we've found that most access points do in fact have a fixed power. Either way, the system can accomodate some amount of dynamic changes.
Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:33PM (#4393218)
Fair enough. We have a 90 second video on YouTube that should give you a sense of what you'll get: www.youtube.com/watch?v=B_GdXp_Swjs

But basically, yes. It lets you build indoor positioning by walking around my room.

I thought this was super-clever when I first came across DiffBot last year. Can't wait to see what they come out with next.

Keep it up!

Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:25PM (#4393177)
@untog: It's actually a sensor fusion approach that combines both accelerometers and Wi-Fi signals.
Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:24PM (#4393172)
Oh also, if you're up for learning more about the technology/platform in general, take a look at blog.wifislam.com
Re:Show HN: Indoor Location you can try yourself on Thursday August 16, 2012 @03:07PM (#4393073)
If you don’t have time to try the app, watch this video instead. It’s 90 seconds. www.youtube.com/watch?v=B_GdXp_Swjs