search for: noisi

While working on 'random walk' applications, I got interested in optimizing noisy objective functions. As an (artificial) example, the following is the Rosenbrock function, where Gaussian noise of standard deviation `sd = 0.01` is added to the function value. fn <- function(x) (1+rnorm(1, sd=0.01)) * adagio::fnRosenbrock(x) To smooth out the noise, define another

The following creates a point process version of a sinewave (maybe there's a better way): p<-amp*cos(2*pi*freq*(1:n)/n ) + 0.5 as.numeric(runif(1:n)<p) I get something like this: 1 o oo oo o o ooooo o 0 ooo o o o o o ooo ooo In case it's not obvious, this is a noisy version of 1 ooooooo ooooooo 0 ooooooo

Dear Michael, One key is adjustment of nls optimizer tolerance. I notice it has to be higher than usual, but, I recovered your noisy "known" parameter values with an error of K1 (-7%) and k1 (-6%): #### Miller problem with Dalgaard modifications ## Linares 1/22/2004 ## Solution 1 nls(noisy ~ lsoda(xstart, time, one.compartment.model, c(K1=K1, k2=k2))[,2], data=C1.lsoda,

Hello, When I plot y=f(x) from the file xy.txt ( http://www.nabble.com/file/p18773387/xy.txt xy.txt ), I can clearly see a trend. Is there a function or a package able to take the median value of y for an interval of x (x +/- a defined value) to plot nice graph (at least a better one) ? Thanks in advance, Have a nice week-end, Ptit Bleu. -- View this message in context:

> On Feb 27, 2017, at 1:36 AM, Kristof Beyls via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi Mikael, > > Some noisiness in benchmark results is expected, but the numbers you see seem to be higher than I'd expect. > A number of tricks people use to get lower noise results are (with the lnt runtest nt command line options to enable it between brackets): > * Only build the benchmarks in parallel, but do t...

Hallo, my noisy time series represent a fading signal comprising of long enough parts with a simple trend inside of each such a part. Transition from one part into another is always a non-smooth and very sharp/acute. In other words I have a piecewise polynomial noisy curve asymptotically converging to the biased constant, points between pieces are non-differentiable. I am looking for

Hi, I'm trying to run the benchmark suite: http://llvm.org/docs/TestingGuide.html#test-suite-quickstart I'm doing it the lnt way, as described at: http://llvm.org/docs/lnt/quickstart.html I don't know what to expect but the results seems to be quite noisy and unstable. E.g I've done two runs on two different commits that only differ by a space in CODE_OWNERS.txt on my 12

Hi, I have a set of observations (x,y), derived from a previous estimation. For each observation I also have an estimated variance s(y) derived from the first stage. The problem is that I need to smooth the data (x,y) while taking into account the fact that the y's have been estimated at a previous stage and thus already come with a variance. So, if I smooth the data I somehow need to

..., it also stabilizes execution time variability due to "random" conflicts in caches, hash collisions in branch prediction or BTB, maybe even uop cache. On Mon, Feb 27, 2017 at 12:36 PM, Kristof Beyls via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi Mikael, > > Some noisiness in benchmark results is expected, but the numbers you see > seem to be higher than I'd expect. > A number of tricks people use to get lower noise results are (with the lnt > runtest nt command line options to enable it between brackets): > * Only build the benchmarks in parallel...

* Use `mktemp` instead of playing with date(1). * Use -f instead of removing the file every time. * "echo ERROR; exit 1" is what die() is for. * Some cosmetic renamings ('k' to 'comp' for compression etc). * Remove the MacOSX comment. It's not MacOSX specific, and it's not a problem anyway. The number behaves just right. * Remove the $((${size}+10)). It's

On Wed, 22 Jan 2020 at 19:55, Chris Lattner via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > On Jan 21, 2020, at 5:00 AM, Alex Bradbury <asb at lowrisc.org> wrote: > >> This all makes sense to me. > > > > That's correct, thanks for the feedback. > > > > I do like the idea from James of having the compiler always spit out a > > note

Anyone have some recommended equipment for alerting people to calls in a noisy environment? I have Polycom IP550 phones set up in some really noisy environments - our mine hoists - and they tend to drown out the ringers. I'm using Clarity WR100s now. They're analog devices, attached to Linksys PAP2T ATAs as part of a call group to get a loud (advertised as 95dB) ring out there, but it

On 11/22/2017 05:07 PM, Martin Peres wrote: > Hey, > > Thanks for your answer, Andy! > > On 22/11/17 04:06, Ilia Mirkin wrote: >> On Tue, Nov 21, 2017 at 8:29 PM, Andy Ritger <aritger at nvidia.com> wrote: >> Martin's question was very long, but it boils down to this: >> >> How do we compute the correct values to write into the e114/e118 pwm

Hi Bernhard, Can you confirm I'm understanding everything correctly? You encode with the same encoder and then decode with either A) blackfin assembly and fixed-point or B) fixed-point only on Blackfin. Then A) sounds bad and B) sounds good. If you do the same in narrowband, it sounds OK. Is that correct? If that's the case, it's *probably* some kind of bug and/or invalid assumption

For those of you using Dovecot on Fedora, the noisy syslog is fixed: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124979 I'd suggest getting the pam SRPM from Rawhide (Fedora development tree) and rebuilding, to minimize dependency issues. (I haven't tried this yet. I'm just forwarding the bug-closing report.)

https://bugzilla.mindrot.org/show_bug.cgi?id=1431 Summary: ssh-copy-id -i .ssh/*.pub hostname is noisy Classification: Unclassified Product: Portable OpenSSH Version: 4.7p1 Platform: Other OS/Version: Linux Status: NEW Severity: minor Priority: P2 Component: Miscellaneous AssignedTo: bitbucket

When I call in from an outside POTS line to a Zap channel, and the call ends, it seems like the hangups are very "sloppy." I see Asterisk give the hangup command, but on my phone there's lots of clicks and the line acts like it's staying open for several seconds, then I hear a phone ringing sound followed by "If you'd like to make a call, please hang up and try

When a Snom 200 (v2.1l) calls a C7960 (v4.4), both using g711u as default, the conversation is extremely noisy from the Snom to the Cisco, but clear in the reverse direction. Using a sniffer, I see packets from the Snom to the Cisco of 87 bytes and Cisco to Snom of 214 bytes. Asterisk is CVS from Saturday. The communications between the two was working fine on Saturday, however something has

Dear all, Currently I am using asterisk 1.4.23.1. . Over the period of 1 week, the memory in use starts off at 50% and continues to climb until it hits 99%. When memory usage ratio become 50% or more, the quality of calls become extremely noisy. The call quality goes back to being perfect once I reboot the machine, but I was to try and avoid having to reboot the machine every week. the following

First of all, sorry about my crossposting this, but tarkin-dev I think is thinly populated, and with all those people experienced in DSP in vorbis-dev I figured it'd be a good idea. On with the question: given an image and a pair of coordinates, how can I calculate some sort of noisiness value? If you create an image with two squares adjacent to one another, and you fill both of them with the same colour, but you add more noise to one than to the other, you see an edge. I'd like to take such edges into account as well, but I'd need a way to calculate how much noise ther...