similar to: Potential call logging problem for commercial systems..

Hi, I'm looking to perform a classification analysis on an imbalanced data set using random Forest and I'd like to reproduce the weighted random forest analysis proposed in the Chen, Liaw & Breiman paper "Using Random Forest to Learn Imbalanced Data"; can I use the R package randomForest to perform such analysis? What is the easiest way to accomplish this task? Thanks,

Has anyone seen this happening to their apps? I''m starting to get errors like this come across from one of my apps: ActiveRecord::UnknownAttributeError: unknown attribute: <script type The parameters being sent are: {"user"=> {"email_confirmation"=>"someone-hcDgGtZH8xNBDgjK7y7TUQ@public.gmane.org",

Hi all, I am doing binary classification and want to improve the classification results on imbalanced response data. Currently the performance is poor. Are there ways I could improve the performance? I could either try different classification methodologies, or try exploring the data more, and throwing away noisy data, and manipulate the data more before sending into the classifiers. I was

Hi, I have been searching everywhere for an implementation of those algorithms, but I have only observed them in Matlab and on the literature. I noticed a package called 'ada' in CRAN but it is not for multi class. I would be happy with just Adaboost.m2, Smoteboost over adaboost.m2 or any other combination that could account for imbalanced multiclass classification problems. Thanks!

Dear listers: Here I have a question on clustering methods available in R. I am trying to down-sampling the majority class in a classification problem on an imbalanced dataset. Since I don't want to lose information in the original dataset, I don't want to use naive down-sampling: I think using clustering on the majority class' side to select "representative" samples might

If no one has a better solution, split it, take a sample of size X from both and put it back together. hgwelec wrote: > > Dear members, > > Consider the following data frame (first 4 rows shown) > > > age sex class > 15 m low > 20 f high > 15 f low > 10 m low > > in my original data set i have 1200 rows and a class distribution

Hi Everyone, I am trying to analyze a split plot experiment in the field that was arranged like this: I am trying to measure the fitness consequences of seed size. Factors (X): *Seed size*: a continuous variable, normally distributed. *Water*: Categorical Levels- wet and dry. *Density*: Categorical Levels- high, medium and solo *Plot*: Counts from 1 to 20 The *response variable *(Y) was the

I recently use gbm for a binary classification problem. As expected, it gets very good results, based on Area under ROC with 7-fold cross validation. However, the application (malware detection) is cost-sensitive, getting a FP (classify a clean sample as a dirty one) is much worse than getting a FN (miss a dirty sample). I would like to tune the gbm model biased to very low FP rate. For this

Hi BJ, Further explanation about the 3rd party ecosystem question this morning Cory Andrews from VoIP supply was on the Voip-Users conference call last week. I asked the question - how much of VoIP Supply revenue is product versus applications - he said we don't sell any services such as ITSP hosted Asterisk so I replied that wasn't what I was thinking of and gave the example of Snap

The G.729.1 "wideband" codec is starting to show a slight bit of traction. There is a possibility that Asterisk could support G.729.1 - would you use it or buy it if it was available? More importantly, does any equipment with which your systems currently exchange traffic support G.729.1? Currently, the number of devices supporting G.729.1 seems to be fairly limited and it

Hi, Does anyone have any instructions or pointers to get VM2 to work with MySQL? I can't seem to find any docs or how-to's on this.. Later..

I have the following setup.. [extensions] ; all extensions defined here. exten => 1234,.... exten => 1235,.... [dial-out] ; PSTN dialout config ignorepat = 9 exten => _9,.... exten => h,.... [local] ; phone context in sip.conf is here.. include => extensions include => dialout The question is where will the "h" extension be active?? it appears to run for ALL,

Hello guys, to describe my scenario i have 4 VLANS on my switch, each VLAN is different subject. I have one DHCP server for 3 VLANS + second one DHCP server for 1 VLAN - named VLAN 7 . Problem is , this started to make problems suddenly. VLAN 7 is not recieving IP adress from correct DHCP server . On DHCP server where declaration for subnet is configured, i am recieving this message : Jul 25

On Tue, Feb 28, 2023 at 12:24:04PM +0100, Laszlo Ersek wrote: > On 2/27/23 17:44, Richard W.M. Jones wrote: > > On Mon, Feb 27, 2023 at 08:42:23AM -0600, Eric Blake wrote: > >> Or intentionally choose a hash that can be computed out-of-order, such > >> as a Merkle Tree. But we'd need a standard setup for all parties to > >> agree on how the hash is to be

I'm trying to run some Windows programs that rely on using the serial port with a data slicer interface and a .SYS or .VXD file that under Windows is necessary to transfer the information from the serial port to the application... At least I think this is how it works. In Wine these apps are complaining that they can't find the .SYS/.VXD files. In Windows these .SYS and .VXD files are

Hi ML members, is there a reason, why ssh-keyscan does not use Host definitions from .ssh/config but does only relys on DNS host names? I have a quite long list of host names and a not that well maintained name server.

We currently have an Asterisk system with a PRI and 6 POTs lines for backup. We are looking to add service such as Voicepulse Connect as an extra level of redundancy and a cost saving alternative to PRI calls. VP Connect only allows 4 simultaneous calls; we are looking for 4 to 5 times that to support our call center. Also, in looking through the archives, it seems like VP has had their share of

Hello, First, I'd like to say sorry if this isn't the right mailing list to ask my question. I'm writting some application(on Linux) wich relys on sshd, so I thought there is nothing wrong in posting my mail here. The aplication i'm writting should, at some point, kill the user from his terminal line. To achieve this I read the users utmp entry and kill the ut_pid in it.. It

I have an X100p card....and it is hard to hear the person on the other end. Should I mess with these values? I have heard both yes and no to this question in the past. If yes, how much louder should I make them? Thanks, MIchael

Hello, I unfortunately am not a systems person but I'm trying to use Samba to connect my linux box to two Win95 PC's. I am now able to print from my Linux box to my PC printer and now I'm trying to browse the Linux box from my PC. I can see my Samba server (the Linux box) in my Network Neighborhood. But when I click on it I get an error saying that the computer is not recieving