Displaying 20 results from an estimated 11000 matches similar to: "SVM, feature selection and parameter tuning"
2007 Nov 21
2
Reconstruct array dataset
Hi there
I have an interesting problem:
My csv file is of array dimensions [12,50], but it was saved the wrong way: there should be only 11 colums. What happens now if I read it into R is that the whole data set is shifted ( in the first row, the last column contains already the first value of the supposed second row and so on...)
how can I tell R to switch after 11 read values to the next row,
2007 Oct 15
1
Save variable with loop part
Hello
does anyone know how to save in a variable with a loop part.
Im reading several csv files with read.table and would like to save with a loop:
for (i in 0:9){
}
should give read0, read1, read2, read3, read4, read5, read6, read7, read8, read9
st. like read(i)<-read.table("myfile.csv".....)
I tried with paste("read", i, sep"") or to save as a vector with
2007 Mar 13
6
Asterisknow with video and X-Lite not quite working
Hello everyone,
I have previously asked this question on the asterisk-video list, but I
got directed here.
I have a setup consisting of asterisknow beta4 (not sure if that is
crucial) and a few clients all running X-Lite 3.0 (not eyebeam) on the
local network. My computer has a USB-Camera installed, and now I would
like to do some video calling with it, at least, so that the other user
can
2008 Sep 26
1
issue with varSel.svm.rfe in package MCRestimate
Hello all,
I would like to perform SVM-RFE (Guyon et al. 2002) in R and have only found
one implementation of this algorithm. The function belongs
to the MCRestimate package but when I try to use it I encounter a problem
- the function appears to be missing a required package or other function
that I simply cannot find available anywhere.
Here is my session info followed by a simple example
2008 Feb 11
4
domain member WIN2003 AD - Trusted Domain
Hi folks,
we have a problem with a win2003 DC and Samba. The authentification of users from the dc works fine, but when we added users from a forest trust in a active directory localgroup, samba don't find the users...
I post this problem here:
https://bugzilla.samba.org/show_bug.cgi?id=5245
Maybe you can help.
Cheers
Paul
--
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2007 Jul 13
2
nearest correlation to polychoric
Dear all,
Has someone implemented in R (or any other language)
Knol DL, ten Berge JMF. Least-squares approximation of an improper correlation matrix by a proper one. Psychometrika, 1989, 54, 53-61.
or any other similar algorithm?
Best regards
Jens Oehlschl?gel
Background:
I want to factanal() matrices of polychoric correlations which have negative eigenvalue. I coded
Highham 2002
2007 Feb 16
1
Fwd: Re: user add script, machine add script
Hello to all,
after noone bother my subject. I think I'm all alone making mistakes
on this thing. But I should really know if it is possible to mange
the administration of samba in an comfortable way. After all the years I
worked with it I never did manage it to be in an sufficent manner.
Is there a plan in the future to have a central administration within the samba package?
--------
2012 Aug 01
0
Questions regarding MCRestimate package
Hello,
I'm currently using MCRestimate package and I have a question regarding
the MCRestimate function.
Here is my code:
NestedCV.rf<-MCRestimate(eset, "Class", classificatin.fun="RF.wrap",
variableSel.fun="varSel.highest.var", poss.parameters=
list(var.numbers=c(100), mtry=c(10,50),
cross.outer=10,cross.inner=10,cross.repeat=3)
I'm pretty sure that I
2006 Nov 21
0
variable selection with support vector machines (SVM)
Hello
I am using support vector machine (from package kernlab) for a classification task (with RBF-Kernel). My data has dozens of variables and I need to identify which variables contribute most to the classification performance.
What I did so far is comparing the classification performance (measured for example with the proportion of misclassified cases) of different sets of variables with
2008 Sep 22
4
dedicated usb support
hi wine user group
I try to run a model aircraft simulator (aerofly professional deluxe) with wine. the installation was a success. after that, I can start the simulator but it doesn't identify the usb game commander (at least a 4 channel usb device). but the kde desktop control center detect the right device IPACS Ikarus Gamecommander (/dev/input/js1). how I get support for this device
2007 Aug 13
1
password server DOMDC1 rejected the password: NT_STATUS_LOGON_FAILURE
Hello list,
I have trouble with a smb configuration that worked fine before I upgraded my samba to the latest stable release.
I used samba 3.0.23c (Slackware11) and now I'm using samba 3.0.25b (Slackware12).
The error/failure looks like this:
I'm trying to connect to my HOME service and I fail. The log produces only this:
[2007/08/13 10:29:33, 1]
2007 Feb 26
1
Samba PDC and Win2k PDC
hi,
I would like to change the old windows 2000 domain structure into one samba 3 domain. the migration is to take place gradually for the departments. I had imagined to packing the samba pdc with another domain name into the same subnetz as windows pdc.
Windows 2k DN = work.wurst.local
Samba 3 DN = work.wurst.de
IP Subnet = 192.168.2.0/24 (Samba and Windows)
is it possible ?
thank
stefan
--
2007 Sep 21
1
SIP and Firewall
Dear Group!
I want to improve the firewall rules for SIP
and I already compiled the linux kernel with additional SIP netfilter
settings
Now I found this on the internet:
modprobe ip_conntrack_sip ip_nat_sip
Set IPtables filter rules
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p udp --dport 5060 -j ACCEPT
Set IPtables NAT rules
iptables -A FORWARD -o
2007 Feb 18
0
Fwd: Re: Samba 3.0.24 + OpenLDAP
Hello,
I did it from the same side on a suse 9.3. For me it worked with
smpldap-useradd -m . But I had to recognize that some of the steps descriped there did not work on suse and I had to change different things
in my ldap.conf and with pam and nss. Did yoe set smbpasswd -w yorldappassword and smbpasswd -a root perhaps you must have a usermap
in smbusers root=administrator or just a net rpc
2007 Nov 07
1
File renaming doesn't work if only case changes
Hi!
I've searched the web, but didn't find anything related to my strange problem: when I try to rename a file or a directory on a Samba share from my Windows-Client and I only change the case of a some characters it's ignored and the old filename is displayed again.
Example:
A directory "New Folder" should be renamed to "new Folder". Thats just ignored :-(. If I
2007 Nov 01
1
Start plot really at baselines x=0, y=0
Dear R
Plots without par arguments do start not at zero (means, the box around is somwhere outside the specified plotrange). How to start really from zero, pe. basline y=0?
every standart par works like this:
x<-seq(1,10,0.1)
y<-sin(x)
plot(sin(x))
Thanks for help
Marc
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2007 Mar 14
0
S/DNAT and Xen problems
There are several people out there having problems with SNAT and Xen. I''m having a problem with DNAT and Xen and I think the reason for the problem could be exactly the same.
I have actually tracked the problem down to http://lxr.mstier.de/linux/source/net/ipv4/route.c?v=2.6.16.28-xen302#1922 -- xenbr0 is the input device and it has no IP which is why everything coming in from that
2005 Jul 21
1
Queue issues: timeout and leastrecent strategy
2004 Dec 13
0
Problem tuning an SVM
Hi all -
(Re my previous question to the list, I managed to generate an ROC plot
for my SVM by ranking the data using the Decision.Values property.
Thanks for your responses)
I have now started tuning the SVM to get optimal parameters for the RBF
kernel and I ran into a problem. Whatever parameter ranges I specify, I
always get the same error values for all combinations of parameters it
2004 Dec 21
2
Rgui.exe - Error while tuning svm
Hello,
if I try to tune my svm with the code:
Tune <- tune.svm(Data.Train, Class.Train, type="C-classification",
kernel="radial", gamma = 2^(-1:1), cost = 2^(2:4))
i get a windows Messagebox with a error in the application "Rgui.exe" and
the message: "Die Anweisung in 0x6c48174d verweist auf Speicher 0x00000000.
Der Vorgang "read" konnte nicht auf