derf_

44 ms·

421.
by derf_ 12y ago
> How is this worse than starting a business without a patent? The argument in the article is that if you don't have the resources to commercially exploit a patent yourself, then no one else will pay you for your invention, beca
422.
by derf_ 12y ago
That patch doesn't affect the x87 asm in sysdeps/x86_64/fpu/e_expl.S, though, does it? Good to hear it's fixed for some cases, though.
423.
by derf_ 12y ago
Don't forget to add in the fact that you could have been earning that non-zero salary potential for two years instead of paying tuition... When I started my Ph.D., early on they ran the numbers with us. The increased starting salary
424.
by derf_ 12y ago
That's good to hear.
425.
by derf_ 12y ago
I take it back, we did measure average case performance of expf() (though not expl()), and it was slower than exp(): 16:12:48 < gmaxwell> ha. So, completely eliminating all the doubles made celt slower. 16:13:23 < gmaxwell> I&#x
426.
by derf_ 12y ago
See also the Firefox bug from 2011: https://bugzilla.mozilla.org/show_bug.cgi?id=648186
427.
by derf_ 12y ago
We didn't measure average case performance, but for worst-case performance the "orders of magnitude" comment is absolutely backed by measurement. See also my comment at https://news.ycombinator.com/item?id=883
428.
by derf_ 12y ago
In many contexts, the problem is not the absolute performance, but the variation in performance. For example, we want the Opus codec to be relatively insensitive to timing analysis, since Opus audio is often encrypted and transmitted over
429.
by derf_ 12y ago
There's an x87 asm implementation for x86-32 in sysdeps/i386/fpu/e_exp.S [1]. For x86-64, it falls back to the generic C code for exp(), in sysdeps/ieee754/dbl-64/e_exp.c. The sad part is that there is x
430.
by derf_ 12y ago
Why would laws be sufficient? There are plenty of people who would like to do the same things the NSA would like to do who are not concerned with laws. As Schneier says, "today's top-secret NSA programs become tomorrow's PhD
431.
by derf_ 12y ago
You could also just modulate the lambda used in the trellis quantization so that it is less aggressive in smooth blocks, and more aggressive in textured blocks. It's not as good as being able to change the quantizer, but you can get so
432.
by derf_ 12y ago
Well, it's not just "git"... it's any of the tools people use to compare and collaborate on text files. Throw it in a Rietveld instance or Gerrit, and you can review changes and make comments like with any other code rev
433.
by derf_ 12y ago
The U.S. patent system makes it impossible to guarantee anything with respect to patent infringement. But how many royalty-free codecs does Xiph need to develop and deploy at scale [0-4], without anyone filing lawsuits, before people believ
434.
by derf_ 12y ago
Even for real-time use cases, the range of bitrates where (spatial) SVC provides an advantage over simulcast is relatively small, and it's not a big advantage. Plus, it's a patent minefield. I've also seen people argue that i
435.
by derf_ 12y ago
Unlike OpenGL, OpenCL allows writes to arbitrary addresses computed by the OpenCL kernel. To be safely run on the web, you have to solve a very difficult validation problem to prove that an arbitrary kernel won't do bad things. I don&#
436.
by derf_ 12y ago
12:37:59 <+xiphmont> no, the lag is intentional. 12:38:11 <+xiphmont> it seems wrong... but exact tracking felt worse.
437.
by derf_ 12y ago
Bitrate peeling is not a design goal, no.
438.
by derf_ 12y ago
So that would be U.S. entities, then? Mt. Gox was headquartered in Japan.
439.
by derf_ 12y ago
In my case, a substantial amount of my work on Opus was done literally from my basement (sorry, I didn't have a garage).
440.
by derf_ 12y ago
I hear there are also about 4 and a half million homo sapiens there, though presumably they are an introduced species.
441.
by derf_ 12y ago
There are many other things that can go wrong long before this happens. Think joints, ligaments, tendons... I say this as someone who once walked 100 km in a bit under 21 hours. I am not an athlete. When I was done my knees had swelled to t
442.
by derf_ 12y ago
Thanks.
443.
by derf_ 12y ago
Link to the full set (top of the page): https://people.xiph.org/~xiphmont/demo/
444.
by derf_ 12y ago
Can you file a bug? https://bugzilla.mozilla.org/enter_bug.cgi?product=Air%20Moz...
445.
by derf_ 12y ago
We certainly thought so (I was Thomas's mentor this summer).
446.
by derf_ 12y ago
Yes, I think anonymity in reviews is largely a myth, even in "double blind" reviews. For many topics, there are only a few research groups actively pursuing them, and you can often tell from what other work they cite, what dataset
447.
by derf_ 12y ago
If you really believe that, then I feel sorry for your users. Privacy is a public health issue: https://www.theguardian.com/technology/2013/may/21/privacy-p... In the absence of some forcing function, th
448.
by derf_ 12y ago
Then why wouldn't they have a conversation with project managers for their company to pay them to be open source developers, instead of other people?
449.
by derf_ 12y ago
Bubbles are about prices, not ideas. Prices affect things in at least two ways: 1) The idea may be something people are willing to pay for, but when given an inordinate amount of money with which to execute it, people go overboard on spendi
450.
by derf_ 12y ago
> ...where everybody, including them knows that a given solution/service/feature does not serve their users' interest... The "users" being referred to are the advertisers.

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