Zeynab Mousavikhamene

7 Questions 5 Answers 0 Followers

Questions related from Zeynab Mousavikhamene

Does fisher discriminant analysis for dimension reduction take into the correlation between features?

My plan is to do supervised dimension reduction and I am planning to try fisher discriminant analysis. My question is that do I need to test if my features are correlated separately to get rid of...

01 July 2020 4,471 5 View

Does SVM binary classifier of matlab (fitcsvm ) handle the unbalanced classes?

I am classifying into two classes and data points in one class are almost 3 times more than data points in the second class. My question is that is fitcsvm sensitive to unbalanced datapoints? oe...

26 May 2020 9,093 8 View

Is it possible to have a few data points as support vectors while they are far from the plane?

We know that in SVM, support vectors that determine the position and orientation of the hyperplane are close to the boundary (close to the plane). In the simulation I did most of the support...

07 May 2020 3,287 3 View

Is there any advantage in multiclass classification compared to binary classification if both are possible?

Multiclass data can be divided into binary classes. e.g. you have 3 classes of data named: A, B, C. You can do multiclass classification or you can divide them into the binary groups like: A-B,...

29 April 2020 6,504 5 View

When is it necessary to check the correlation between features when doing a classification?

I have not found any clear explanation about the necessity of checking correlation between features when doing classification. Is it necessary to check the correlation when the accuracy of...

10 April 2020 4,630 6 View

Does statistical significance give any info of the outcome of classification?

If values of a specific feature for all samples in class A are statistically significant than values of the same feature of all samples in class B, would that give me any information or intuition...

01 April 2020 8,421 3 View

How to determine the adequate number of data sets required for convolutional neural network?

I have seen the scale of at least 1000 s for cnn. I know it depends on many factors like the image and its details but is there roughly any estimate that can determine the number of samples is...

17 March 2020 7,259 4 View