libsvm Questions
4
Solved
I have been recently trying to use svm for feature classification. While i was doing so, a question came to my mind.
Which would be a better method to use, LIBSVM or svmclassify? What I mean by sv...
Jaella asked 11/1, 2012 at 16:12
1
Solved
When data is offset (not centered in zero), LinearSVC() and SVC(kernel='linear') are giving awfully different results. (EDIT: the problem might be it does not handle non-normalized data.)
import m...
Aeschines asked 15/1, 2016 at 13:6
2
I am new to the libsvm and sorry for some silly questions.
I am trying to run easy.py but have problems to do so. I have
downloaded the libsvm-3.1 package and extract it into C:\User\Cassie\libsv...
3
Solved
I am trying to use the java bindings for libsvm:
http://www.csie.ntu.edu.tw/~cjlin/libsvm/
I have implemented a 'trivial' example which is easily linearly separable in y. The data is defined as:...
1
I am trying to run the LibSVMAndroidClassification Android project with my own dataset. It works perfectly fine with the dataset already provided and it also works fine when I use my csv with 100 r...
Landri asked 1/11, 2014 at 1:34
1
Solved
I'm using LIBSVM. In the download package is a svm_toy.java file. I could not find out how it works. Here is the source code:
import libsvm.*;
import java.applet.*;
import java.awt.*;
import java....
1
Solved
I read this thread about the difference between SVC() and LinearSVC() in scikit-learn.
Now I have a data set of binary classification problem(For such a problem, the one-to-one/one-to-rest strate...
Colombes asked 21/11, 2015 at 13:36
5
Solved
Would like to know how to install libsvm for python under windows 7?
I downloaded the livsvm zip, but I don't understand the instructions included. I have placed the libsvm.dll in my c:\windows\sy...
2
Solved
I have a data set which is in the form of some nested maps, and its Scala type is:
Map[String, (LabelType,Map[Int, Double])]
The first String key is a unique identifier for each sample, and the ...
Snider asked 18/8, 2015 at 19:7
2
I'm trying to use a classifier LibSVM-based using Weka, but i got this error:
Exception in thread "main" weka.core.UnsupportedAttributeTypeException:weka.classifiers.functions.LibSVM: Cannot handl...
Flintlock asked 18/7, 2013 at 10:16
5
Solved
I want to use LibSVM classifier with Weka in my application. How can I (or where can I find good examples to) do this?
1
Solved
I have scraped a lot of ebay titles like this one:
Apple iPhone 5 White 16GB Dual-Core
and I have manually tagged all of them in this way
B M C S NA
where B=Brand (Apple) M=Model (iPhone 5) C...
Numerology asked 28/6, 2015 at 19:51
2
Solved
I have scraped a lot of ebay titles like this one:
Apple iPhone 5 White 16GB Dual-Core
and I have manually tagged all of them in this way
B M C S NA
where B=Brand (Apple) M=Model (iPhone 5) C...
Projective asked 22/6, 2015 at 23:34
3
Solved
How should I set my gamma and Cost parameters in libSVM when I am using an imbalanced dataset that consists of 75% 'true' labels and 25% 'false' labels? I'm getting a constant error of having all t...
Burse asked 30/9, 2013 at 8:42
2
Solved
I'm using the package e1071 in R in order to build a one-class SVM model. I don't know how to do that and I neither find any example on the Internet.
Could someone give an example code to characte...
Owens asked 9/12, 2014 at 9:32
2
Solved
I was wondering why libSVM gives different accuracy results if I predict with or without the probabilities and I found a FAQ at this page which says
Q: Why using svm-predict -b 0 and -b 1 gives di...
Marston asked 17/4, 2015 at 19:56
4
How do I visualize the SVM classification once I perform SVM training in Matlab?
So far, I have only trained the SVM with:
% Labels are -1 or 1
groundTruth = Ytrain;
d = xtrain;
model = svmtrain...
Polonaise asked 15/4, 2010 at 22:19
3
Solved
I am having problem with implementing LibSVM to MATLAB.
I am using MATLAB R2009a (I also have the latest version, R2012b, but I dont use that one)
I downloaded LibSVM package, libsvm-3.14 to my Win...
1
While using easy.py script it generates error as shown in figure:
Path for gnuplot is set well. There is no problem in using grid.py
Some people suggested (http://www.cnblogs.com/tekson/archive...
Psyche asked 23/9, 2014 at 8:49
1
I am using One-Class SVM for outlier detections. It appears that as the number of training samples increases, the sensitivity TP/(TP+FN) of One-Class SVM detection result drops, and classification ...
Iona asked 2/7, 2014 at 20:59
3
Solved
I know that in MatLab this is really easy ('-v 10').
But I need to do it in R. I did find one comment about adding cross = 10 as parameter would do it. But this is not confirmed in the help file s...
Trilateration asked 12/11, 2012 at 16:26
1
Solved
I am using libsvm and I did a very simple experiment, training 10k vectors and testing with only 22. I am using the linear kernel with parameter cost C=1. My problem is multiclass. So Libsvm will u...
2
Solved
I want to use matlab toolbox to do feature selection. there is one good function there called sequentialfs that does a good job. However, I could not integrate it with LibSVM function to perform fe...
Yirinec asked 6/5, 2012 at 10:28
2
Solved
I am trying to run LIBSVM in parallel mode, however my question is in OpenMP in general. According to LIBSVM FAQ, I have modified the code with #pragma calls to use OpenMP. I also modified the Make...
5
Solved
I extracted PCA features using:
function [mn,A1,A2,Eigenfaces] = pca(T,f1,nf1)
m=mean(T,2), %T is the whole training set
train=size(T,2);
A=[];
for i=1:train
temp=double(T(:,i))-m;
A=[A temp];...
Acceptation asked 31/1, 2014 at 7:8
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