How to verify whether the kernel is positive definite or indefinite?

04 May 2017 1,590 4 View

How to change initial weights in Libsvm software(matlab interface) which is set as zero ?

I want to give my defined weights as initial weights to train my data set using libsvm. I am using MATLAB interface. In which file and how can I do this change? Suggest me the code to provide my...

08 September 2016 8,040 1 View

Why do I get same number of support vectors in each class?

After training heart.scale data set using RBF kernel, to find number of support vectors in each class I am writing following code. Am I doing any thing wrong ? as I am getting the same number of...

02 March 2016 5,220 3 View

Why do the dimensions for support vector coefficients differ?

My classification problem has 4 classes. If I use inbuilt LIBSVM library in which one-one approach is used, and check the dimension of support vector coefficient ie, model.sv_coef, it is 53 x 3....

08 September 2015 180 2 View

How can I modify the code of LIBSVM to find distance of a point to the Hyperplane?

06 July 2015 2,815 2 View

How can one find the value of discriminant function of svm using libsvm?

02 March 2015 2,962 5 View

How can I calculate and store the value of decision function of SVM using LIBSVM (MATLAB interface)?

My problem has 6 classes. After creating model file using RBF kernel, I want to use my own kernel in which I want to use value of decision function, which I am getting using standard RBF kernel....

02 March 2015 9,584 3 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to find the mode of classified ocean colour images?

Hello, I have classified 10 S3 OLCI images from the same area (althouth not the same size and/or quadrant) and I would like to do a final image using the mode of the pixel of these 10 images. I...

01 March 2021 9,874 3 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How to prevent ANFIS Model from negative prediction values in MATLAB?

I have input and output data set for "ANFIS modeling in MATLAB", and I am getting some negative predicted values of output in testing. However, the predicted values of output in training are...

28 February 2021 3,459 3 View

How to threshold an image despite bright lighting, using ImageJ/Fiji?

Hi everyone, I am using Fiji to determine the percentage of the image covered by leaves, branches, or trunk, but i've encountered some difficulty when the sun hits parts of my image like the one...

27 February 2021 1,194 3 View