iskander

74 ms·

781.
by iskander 17y ago
I think this roughly corresponds to the original I/O system in Haskell, based on lazy streams. They were, by all accounts, an absolute bitch to program with. Continuation based I/O was slightly better, but monads were still greeted as liber
782.
by iskander 17y ago
Interesting: "...these cross-country data are consistent with the hypothesis that mixed-gender classrooms are a necessary component for gender inequality to translate into poor female math performance"
783.
by iskander 17y ago
>Researchers say women's friendships are face to face: They talk, cry together, share secrets. Men's friendships are side by side: We play golf. We go to football games. That mode of friendship sounds terrible to me. I'm male and I like
784.
by iskander 17y ago
Those soldiers, even after seeing the video, seem to remain convinced the people in the van were gathering weapons. Weird.
785.
by iskander 17y ago
Yep, we don't use branches. Maybe that's the reason everyone seems to have such (otherwise mystifyingly) negative opinions of SVN.
786.
by iskander 17y ago
But what exactly is better?
787.
by iskander 17y ago
Perhaps my project is too small to encounter performance issues (only have ~15k lines of code), but SVN has always been perfectly snappy.
788.
by iskander 17y ago
I use SVN on a 2 person academic project. It works great, I've never had any problems or complaints. Is there some compelling reason to switch to a distributed VCS?
789.
by iskander 17y ago
This is especially a problem in Russia, where having even modest sums can draw the attention of local goons. I don't think being a famous mathematician is any protection from having Grisha the neighborhood limb breaker show up at your door.
790.
by iskander 17y ago
>Nope, computation can never be the same as math, per Godel's incompleteness theorem. lolwut? (first order logic w/ addition ain't math enough for you?)
791.
by iskander 17y ago
>A good dictator would be really effective and could do tremendous amount of good. The downside is that generally in a dictatorship, the ruler could also be an evil dictator and cause lots of damage. I don't think this is quite right, s
792.
by iskander 17y ago
>If you eat whole foods that have been around for 1000s of years, you probably don’t have to worry about counting calories Total rubbish. Calories are calories. I have a picky palate (I like things this person might call "whole foods"),
793.
by iskander 17y ago
>, it's also phonetically very similar to Latin characters. The history of alphabets is awesome. Phoenician -> Aramaic -> Hebrew Phoenician -> Greek -> Latin
794.
by iskander 17y ago
>In this respect, off shoring manufacturing enables a greater range of innovation at much lower risk. I can build 1000 widgets overseas for $1 each, but I can't even get 1000 widgets in the u.s. due to the cost of the machines to make t
795.
by iskander 17y ago
My parents started a company together. My mom had more drive and interest in managing, so as they grew she became CEO while my dad continued to tinker with IT. They've been working together for ~16 years, their company is doing OK, but my d
796.
by iskander 17y ago
1) No. See V8. 2) Tracing JIT's might win for loop-centric languages. They miss some serious opportunities for parallelization in languages with rich collection-oriented operators (functional and array languages).
797.
by iskander 17y ago
Just because V8 doesn't have an IR doesn't mean it's not a JIT. V8 still has to generate assembly throughout the execution of a javascript program (to create new hidden classes, patch the inline cache, etc...). See: http://code.google.com/
798.
by iskander 17y ago
Not just functional programs. You can transform any old C program into specific subsets of lambda calculus (administrative normal form or continuation passing style) and do all your optimizations there.
799.
by iskander 17y ago
Many common compiler optimizations are subsumed by ordinary reduction rules for lambda calculus. See: [Shrinking reductions in SML. NET]( http://research.microsoft.com/en-us/um/people/akenn/sml/Shri... ). That said, you can always transform
800.
by iskander 17y ago
>Do you remember learning to factor quadrilateral equations? x2 -32x +12? Why were you taught this? Why did they spend hours drilling you on such clearly useless content? Simple: you were being trained to be a compliant cog, someone who
801.
by iskander 17y ago
Despite the article's somewhat confusing presentation, compressed sensing isn't primarily about photos. It's a principle that can be used to reconstruct any sort of signal from a small number of measurements. The only requirement is that we
802.
by iskander 17y ago
Check out Lustig's thesis. He finds that you can keep the same brain image quality while accelerating the sampling considerably. http://yonit.stanford.edu/cgi-bin/axs/ax.pl?http://www-mrsrl...
803.
by iskander 17y ago
The article focuses on "missing pixels" which doesn't have much to do with the original Candes paper. The usual setup for compressed sensing is that you're sampling the entire image one coefficient at a time in some "incoherent" basis (ie,
804.
by iskander 17y ago
This is more of a case where you aren't actually using all the information-bearing capacity of your pixels but are actually sampling from a much lower dimensional manifold. This isn't just interpolation and information need not be lost.
805.
by iskander 17y ago
I think Candes (and/or the journalist) is contrasting sampling in an incoherent basis with the conventional route of compression (sample the full signal/image/whatever, then try to reduce its size). The former is a form of compression, ju
806.
by iskander 17y ago
>In practice, this doesn't work as well for more complicated images such as brains or abdomens. There is just much more to draw, and the images cease to be sparse. Compressed sensing works just fine for brains, abdomens etc.. because th
807.
by iskander 17y ago
Why do you say that? Seems like a reasonable application of compressed sensing.
808.
by iskander 17y ago
I might be mistaken (I'm not an expert), but isn't the article mixing up compressed sensing and low-rank matrix completion? edit: Also, they present all of compressed sensing as if it were just that one algorithm for image reconstruction (w