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Anand Mishra

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Devi Ahilya University, Indore

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Programming

 

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04 Apr 2012 Screenshot Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra svm, support vector machin..., multiclass, multiclass svm 245 29
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Comments and Ratings by Anand View all
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04 Apr 2012 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra

Download Version 3.0 of this function and give suggestions for improving it. Version 3.0 includes the usage of multiple row testing matrix input.

04 Apr 2012 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra

@pallavi
Sorry for late reply, but I was little bit busy.
You can use '|' instead of '||' or '&' instead of '&&' in function,hope this will work for your application. You can refer Operators and Flow Control in Matlab for more information.
Thank You for taking help.

04 Apr 2012 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra

@Gomathi C,
Sorry for late reply, but I was little bit busy.
By the way you don't have to worry about using this function for two class SVM. You can not use this function for two classes, because their is an inbuilt MATLAB function for two classes classification present in MATLAB IDE. I created this function to extend the facilities of inbuilt MATLAB function.
I am not able to understand your output of GLCM but you can look image associated with my file in MATLAB file exchange for example of using my SVM function.
If you still find any problem in using your inputs for your program then please clarify me whole parameters you are using for GLCM like autoc, contr etc. So that I am able to tell you more clearly.
Hope this will help you.
Thanks for using my function.

14 Oct 2011 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra

@guo,
Hi, you correctly spotted the algorithm behind this file.
Now take an example,
Suppose
T=[1 2 3 4;2 3 4 5;3 4 5 6;4 5 6 7]
C=[1 2 3 4]
tst=[3 4 5 6]
then run the function and then debug it step by step to understand algorithm.
It becomes clearer how the class is calculated.
Thanks for your interest.

11 Oct 2011 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra

@Aziz,
Dear Aziz, svmclassify never makes 'classes' variable as a row vector of 0 and 1. The 'classes' can used only for checking loop condition i.e.,whether loop is to be terminate or not (check in while condition).
Variables 'newClass' and 'c1' can takes form of vector(0 and 1) and changing their sizes in each iteration.

I am using operands || and && because I am working on C Programming also so I am habitual of using this instead of logical scalar values.

May this solve out your confusions. Read Comments on file thoroughly. Thanks for taking help.
Regards...Anand Mishra.

Comments and Ratings on Anand's Files View all
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16 Jan 2014 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra raha

hi
i am new in svm
i wonder how calculate accuracy in this algorithm
plz help me

01 Oct 2013 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra Li, Weizhi

Error using seqminopt>seqminoptImpl (line 198)
No convergence achieved within maximum number of iterations.

Error in seqminopt (line 81)
[alphas offset] = seqminoptImpl(data, targetLabels, ...

Error in svmtrain (line 499)
[alpha, bias] = seqminopt(training, groupIndex, ...

Error in multisvm (line 20)
models(k) = svmtrain(TrainingSet,G1vAll);

I think it does not work

12 May 2013 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra madridi, billel

hey ; why i can't see the file could you send it to me to( billelnet009@gmail.com )
please i really need it it's emergency

24 Apr 2013 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra Aya

please i need to know it's one vs all or one vs one relation??

13 Apr 2013 Multi Class Support Vector Machine This function removes out the limitation of MATLAB SVM function of two class and uses more classes. Author: Anand Mishra jamila

Hi
thank you for this code, it great ; but i have an error when i try to change the kernel function. The error is " Error using ==> seqminopt>seqminoptImpl at 203
No convergence achieved within maximum number of iterations.

Error in ==> seqminopt at 84
[alphas offset] = seqminoptImpl(data, targetLabels, ...

Error in ==> svmtrain at 541
[alpha bias] = seqminopt(training, groupIndex, ...

Error in ==> multisvm at 49
svmStruct = svmtrain(T,newClass,'kernel_function','linear' ); %
I am using rbf kernel function, you must change it also

Error in ==> teststa at 61
[itrfin] = multisvm( data,classa,test )"

can you help me please?

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