jedbrown

16 ms·

121.
by jedbrown 9y ago
This can be fixed by a small change to privacy liability law. Current law requires litigants to show actual economic harm. That is hard to do in cases of identity theft and privacy violations, which is why the OPM case was just dismissed
122.
by jedbrown 10y ago
It doesn't bother you to have the perception of privacy without actual privacy? Like being alone, except for the hidden cameras.
123.
by jedbrown 10y ago
PGP signatures can't be used to prevent delivery of scam/spam email.
124.
by jedbrown 10y ago
Unfortunately, having the list software create a new message breaks threading. It is common practice to Cc people (subscribed to the list or not) that may need to interact with the thread, but they get the message directly from the sender w
125.
by jedbrown 10y ago
In each previous upheaval, new industries created large numbers of low-skilled jobs. In contrast, most of the new jobs created by AI will require significant education and creativity.
126.
by jedbrown 10y ago
The bottleneck here is education. There will always be demand for employees in the emerging industries, but the required skillset will increasingly be out of reach of the masses, partly due to the time needed to learn these skills (compound
127.
by jedbrown 10y ago
How do you define "recover"? Stocks were ahead of 10-year T.Bonds by 1945. http://pages.stern.nyu.edu/~adamodar/New_Home_Page/datafile/...
128.
by jedbrown 10y ago
Cool service. Beware that the Wikipedia links may direct to different people with the same name, particularly for local offices. For example, my Assessor links to a British wartime codebreaker and my Surveyor links to a Kiwi rugby star.
129.
by jedbrown 10y ago
Are states divided into two groups -- the givers and the takers? http://www.theatlantic.com/business/archive/2014/05/which-st... The sign on your tax return seems much less of a class divide than whether
130.
by jedbrown 10y ago
Reinsurance is definitely concerned about sea level rise. Here is an example presentation from SwissRe showing their estimates of the increasing damages due to climate change (e.g., slide 7). http://www.miamidade.gov/plannin
131.
by jedbrown 10y ago
1. 4 of those R3 instances cost less than the X1 but offer nearly double the bandwidth. The X1 is cheaper per GB, but much more expensive per GB/s. 2. If DRAM was not faster than NVRAM/SSD, nobody would use it. "Speed"
132.
by jedbrown 10y ago
Does anyone have numbers on memory bandwidth and latency? The x1 cost per GB is about 2/3 that of r3 instances, but you get 4x as many memory channels if spec the same amount of memory via r3 instances so the cost per memory channel is
133.
by jedbrown 10y ago
Most everything here is subjective, inaccurate, or outdated by C99, save Fortran's multi-dimensional array handling which is legitimately superior to C despite partial reconciliation by VLAs.
134.
by jedbrown 10y ago
I came here to cite the same paper, but your comment about efficiency is only true in a limited context. Applying an explicitly-computed inverse exposes more parallelism than solving with factors. State of the art parallel linear algebra p
135.
by jedbrown 11y ago
My resting has been 36-40 since age 15. Scared the hell out of me once when I was in an ER for trauma and they say "we have to fix your heart first". It's common for athletes to have a resting heart rate below 40, though I&
136.
by jedbrown 11y ago
While these high-intensity sessions are believed to be critical to achieving maximal performances, they cannot be performed optimally if intervening basic endurance sessions are performed at too high an intensity (Bruin et al., 1994). Howe
137.
by jedbrown 11y ago
Anecdotally, I experience somewhat higher perceived effort at a given (moderate) heart rate when better trained. For example, my resting and max heart rates have been nearly constant at 36-40 and 170-175 since about 18 (I'm 32 now). Du
138.
by jedbrown 11y ago
A huge source of uncertainty in molecular dynamics comes from the force model, which are crude approximations of electronic structure. There is a great deal of active research on improved force models, many of which are implemented in AMBE
139.
by jedbrown 11y ago
Standardization makes it easy and reliable. If those that insist on DRM need to navigate unreliable, mediocre technology, it requires more development effort and delivers a sub-par user experience, thus leaving the door open for DRM-free co
140.
by jedbrown 11y ago
In the interest of not propagating this common misconception: "The main problem with Git is that binary files are stored “as is” in the history of the project, so that every single revision of a new binary file (even if just a single b
141.
by jedbrown 11y ago
http://www.politifact.com/truth-o-meter/statements/2015/oct/...
142.
by jedbrown 11y ago
Even for an executable, the installation environment may be different from the execution environment (which may be sandboxed, mounted read-only, etc.). Moreover, a tarball gives you a reliable manifest so that you know what will happen befo
143.
by jedbrown 11y ago
What value does this provide? It looks like nothing more than a security vulnerability with a new non-standard and crippled interface. Tar is available on all the target platforms, for example.
144.
by jedbrown 11y ago
HPL has an abundance of flops at all scales (N^{1.5} flops on N data), so one can expect a decent fraction of peak flop/s on any architecture with enough memory and adequate cache performance. This is a problem because architectural t
145.
by jedbrown 11y ago
The information I've seen about Sibyl (the Google ML system, not the genomics package ( http://sybil.sourceforge.net/documentation.html) ) says it is basically doing logistic regression using a parallel algorithm (Collin
146.
by jedbrown 11y ago
Power is over-emphasized in HPC circles. According to FOIA reports (and you can back out similar from public budget information), less than 10% of the budget is going to energy. It is frequently used as an excuse to build machines that are
147.
by jedbrown 11y ago
CG isn't truly asynchronous due to its reductions. It can be pipelined in various ways (we have several implementations in PETSc), but performance requires a quality implementation of asynchronous reduction (e.g., MPI_Iallreduce) which
148.
by jedbrown 11y ago
HPCG basically measures STREAM and has many technical flaws making it scale-dependent and difficulty to adjudicate. As codeveloper of a different benchmark, I'll just cite this paper from a third party. https://hpgmg.org&#x
149.
by jedbrown 11y ago
This article takes a rather fatalist perspective. Seems to me companies/government should have a strict need-to-know policy and some liability for failures. If you can't keep information secure, you shouldn't have it. Acting
150.
by jedbrown 11y ago
Obviously, but no amount of high-density construction in Boulder will make it cheaper than equivalent accommodations in Bend (unless Bend gets a lot more expensive). I'm not questioning your decision, but it's worth being realisti

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