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phdcomputer Eng


32 total contributions since 2018

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Question


How to select the values greater than the mean in an array?
I want to apply feature selection on a dataset (lung.mat) After loading the data, I computed the mean of distances between eac...

29 days ago | 1 answer | 0

1

answer

Question


How to apply NMI (mutualinfo) accuracy measure for classifiers?
I want to compute the NMI measure for obtaining the accuracy of the classifiers on a dataset (attached) I used this mutualinfo f...

29 days ago | 0 answers | 0

0

answers

Question


How to sort a matrix's columns by using indexes
I wrote some codes to sort an array (a) descendingly. I want to use the indexes (indA) to sort the data matrix's columns. clo...

2 months ago | 2 answers | 0

2

answers

Question


How to compare array's values with each other?
In an array (a) with indexes from 1 to m, I want to compare the values of this array one by one with each other, and if the dist...

3 months ago | 2 answers | 0

2

answers

Question


How to calculate threshold for matrix in Matlab?
I wrote these codes to calculate a threshold for distance values between features of the dataset. after computing hamming distan...

3 months ago | 1 answer | 0

1

answer

Question


How to compare matrices with different dimensions?
I wrote a code for classification by using 5 classifiers and at the end I used voting this code is for initia defining of train ...

4 months ago | 0 answers | 0

0

answers

Question


How to fix MATLAB errors arise from changing the search path?
The Matlab software installed on my computer(windows OS) shows a lot of errors when I tried to change the search path by using a...

4 months ago | 1 answer | 0

1

answer

Question


How to fix an error about struct input of an function in Matlab?
I wrote this function svmclassify: [SL: Removed the svmclassify function. This is identical (modulo a few blank lines added) to...

4 months ago | 1 answer | 0

1

answer

Question


How to fix a program that does not end?
I wrote a program for clustering that a number of kmeans algorithms are implemented on a dataset, clear all close all clc lo...

4 months ago | 1 answer | 0

1

answer

Question


How to fix the errors Arise from moving .m files and functions in folders?
I wrote some codes in Matlab for classification and I achieved the desired results, all the functions which were used in the pro...

4 months ago | 2 answers | 0

2

answers

Question


How to write CSPA algorithm for clustering ensemble in matlab?
I have lung cancer dataset (attached) , I want to apply clustering ensemble algorithm on the data : CSPA (cluster-based similari...

5 months ago | 0 answers | 0

0

answers

Question


How to combine classifiers by voting?
I used five classifiers on a dataset, then I want to combine the results of the classifiers by a simple voting methode but I don...

5 months ago | 0 answers | 0

0

answers

Question


How to apply majority voting for classification ensemble in Matlab?
I have five classifiers SVM, random forest, naive Bayes, decision tree, KNN,I attached my Matlab code. I want to combine the res...

5 months ago | 1 answer | 0

1

answer

Question


How to save a xls file as a mat file?
I used this code to save an excel file as a .mat file in matlab. num = xlsread('Immunotherapy.xls') save Immunotherapy.mat num...

8 months ago | 1 answer | 0

1

answer

Question


How to implement classification in Matlab?
I've found that after feature selection I can use classification algorithm to specify the class(label) of each sample, In my re...

8 months ago | 0 answers | 0

0

answers

Question


How do I import dataset in classification learner app?
I want to use classification learner app in Matlab program to classify my data, I studied this matlab documentation MathWorks ,...

8 months ago | 1 answer | 0

1

answer

Question


Is random forest a classification ensemble methode?
I want to apply classification ensembke methode for my matrix , Is random forest algorithm a classification ensemble method? ...

9 months ago | 1 answer | 0

1

answer

Question


How to apply classification ensemble?
I wrote a feature selection code and It's output is a matrix, now I want to apply classification ensemble on the output. I studi...

9 months ago | 0 answers | 0

0

answers

Question


Testing my feature selection program with datasets
I wrote a feature selection program based on a dataset with two class labels, now I want to test It with more datasets. I searc...

9 months ago | 0 answers | 0

0

answers

Question


How to compute the average of distances between a column and other columns of a matrix?
I want to compute the average of distances between a column and other columns in a matrix except itself. I'm not sure that the...

10 months ago | 0 answers | 0

0

answers

Question


How to split a column's elements to two vectors based on lables?
I attached a part of lung dataset(32X57), It's last column is the lables(1 or 2), I want to split each column to two vectors bas...

10 months ago | 2 answers | 0

2

answers

Question


How to use pdist2 for unequal vectors?
I want to compute the distance between two vectors by using Jaccard distance measure in matlab program. I studied about pdist2 ...

10 months ago | 0 answers | 0

0

answers

Question


How to split positive & negative comments?
Firefox users' opinions collected in a text file, I want to write codes in Matlab to split them into positive & negative comment...

12 months ago | 0 answers | 0

0

answers

Question


How to convert text to matrix?
I attached a program and a dataset: https://files.fm/u/j8snykvm. This program splits positive and negative comments from the tex...

12 months ago | 0 answers | 0

0

answers

Question


How to convert a text dataset to a numeric matrix?
I have a text dataset and I want to convert it to a numeric matrix by feature representation methods like Uni-gram, (Uni-Bi) gra...

12 months ago | 0 answers | 0

0

answers

Question


Using feature selection or sample selection?
I'm Implementing an article in Matlab( the article is attached). You can get the dataset in this link: https://sites.google.co...

12 months ago | 0 answers | 0

0

answers

Question


How to cluster my graph?
I used community detection toolbox (ComDetTBv091) for clustering my directed weighted graph. I tried to use gui but it didn't i...

1 year ago | 0 answers | 0

0

answers

Question


Error in importing data in community detection toolbox
I downloaded community detection toolbox from the following link: https://nl.mathworks.com/matlabcentral/fileexchange/45867-com...

1 year ago | 1 answer | 0

1

answer

Question


how to calculate the edges' weights from a dataset?
filename='C:\Program Files\MATLAB\R2016a\bin\Firefox.xlsx'; t=readtable(filename); g = graph(t.Assignee, t.Reporter ); plot...

1 year ago | 0 answers | 0

0

answers

Question


How to define cell arrays that their elements are extracted from a Dataset?
I have two 29*1 cells in my Matlab workspace (they were two columns in my excel dataset with the names: Assignee & Reporter that...

1 year ago | 1 answer | 0

1

answer

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