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Asvin Kumar


Last seen: 2 days ago

MathWorks

87 total contributions since 2019

Hi, I'm an Applications Support Engineer at Mathworks.

My areas of interest are signal processing and communications. I've also spent a little while on reinforcement learning, machine learning and deep learning.

DISCLAIMER: Any ideas or opinions posted here are my own and in no way reflect that of MathWorks.

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Answered
1d CNN with classification layer for prediction
A couple of details are unclear to me. I don’t understand the different classes you have in a wind speed dataset. If the X_t...

8 days ago | 0

Answered
Semantic segmentation using deep learning
Hi Ranjitha, I understand you’re looking for code references on semantic segmentation in MATLAB. I’ll let the community provi...

8 days ago | 0

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How do I use the upsampling layer?
I believe the functionality you are looking for is available in the resize2dLayer function that was introduced in R2020b. You ca...

8 days ago | 0

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Answered
Error using bboxresize>iParesInputs (line 115) The value of 'bboxA' is invalid. Expected input number 1, bboxA, to be positive.
I’m unable to reproduce the mentioned error since there’s no attached ‘testdata’ or an error stack. Nevertheless, it looks li...

8 days ago | 0

Answered
trainSSDObjectDetector's example network related
The version of the MAT file you’re referring to was updated in R2020b / R2020a Update 5. The network from the previous version h...

10 days ago | 0

Answered
Missing "Generate Function" in Regression Learner App
The ‘Generate Function’ option is unavailable on MATLAB Online as of R2020b. This will be available starting R2021a. Currentl...

11 days ago | 0

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How to reshape the data for an LSTM from 252 entry and 14 features to 42 examples with 6 timesteps and 14 features?
There’s a great example that should illustrate how to prepare your data. Please have a look at the Load Sequence Data section of...

12 days ago | 0

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How to go through a folder of dicom files and save them according to id's from a spreadsheet after anonymizing?
This process can definitely be automated. Although I’m not entirely clear as to how you want to rename your files, I understa...

12 days ago | 0

Answered
Help me with plotting, please.
Try plotting with the fsurf command as follows: fsurf(f, [-10 10 -10 10]) fsurf(f, [-10 10 4 6]) % or this You’ll notice th...

12 days ago | 0

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Answered
Is there a better way to view dozens of tabs in the Editor Window? Can the tabs be made smaller so I can see more at the same time?
Might help https://www.mathworks.com/matlabcentral/answers/87281-r2013b-ide-nonsense-the-story-continues#answer_96867

18 days ago | 0

Answered
Action Value can't be constained
For your first question: Have a look at the discussion here. https://www.mathworks.com/matlabcentral/answers/515602-incorrect-t...

5 months ago | 0

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divideint divides the same way every time even when I place 'rng shuffle' before it.
divideint uses a deterministic algorithm to partition the indices. You can use dividerand instead for a random partition of indi...

5 months ago | 0

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Answered
DO I need finalize shallow Neural network Model for prediction?
It depends. Whether you need to train your model on your whole data set or not depends on what you want to achieve. In the b...

5 months ago | 0

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Answered
LSTM cell operation with different number of hidden units
For your question, I am going to refer you to an earlier answer of mine: https://www.mathworks.com/matlabcentral/answers/525184...

6 months ago | 1

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Answered
trapezoidal signal down and upsample
Have a look at the upsample and downsample functions. If you would prefer to not have 0s, you can try using the interp1 functi...

6 months ago | 0

Answered
Machine Learning onramp section 4.6
For 2 and 3, have a look at https://www.mathworks.com/help/matlab/matlab_prog/add-and-delete-table-rows.html#AddAndDeleteTableRo...

7 months ago | 0

Answered
How to set dimension of input data for LSTM?
For the first part of your question on number of steps in an LSTM I am going to redirect you to an earlier answer of mine. Essen...

7 months ago | 0

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Position or Coordinates of Labels
Let me establish a couple of details first before I go ahead and explain how to solve your problem. 1. axes.XLabel.Position ...

7 months ago | 0

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Answered
AWGN function snr parameter
A higher Signal to Noise Ratio (SNR) would mean that the Signal Power is more as compared to the Noise Power. When that is the c...

7 months ago | 0

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Deep Network Designer missing Data and Training tab
Those features were added as part of the R2020a release. You can check those details in the release notes.

7 months ago | 0

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Answered
what does the error mean "Index in position 2 exceeds array bounds (must not exceed 1). Error in heat2 (line 116) if abs(Qforced(r,c) - Qfree(1,iterations)) < 0.001"
At some point in your program, either the ‘r’ or ‘c’ or ‘iterations’ variables are being used to index into a position in their ...

7 months ago | 0

Answered
How to solve the differential equation numerically
As others have mentioned in the comments, ODE seems best suited for this problem. Here’s an example from which you can adapt a s...

7 months ago | 0

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Answered
Image segmentation using gaussian mixture model clustering based on the blobworld paper
Here's a popular implementation of the EM algorithm from File Exchange which might be of use to you: Expectation Maximization A...

7 months ago | 0

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How can I use double-sided z transform?
Currently the ztrans function does not support bilateral transforms. This is a known limitation and our developers are looking i...

7 months ago | 1

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How to change /rotate the initial pose of the ego vehicle in the bird eye view ??
In the Driving Scenario App, you can change the Yaw for the required actor under the Actors tab to a negative value. A good in...

8 months ago | 0

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Answered
import a Keras pre-trained network into Matlab
You can use the 'Weights' property for each PlaceholderLayer. placeholderLayers = findPlaceholderLayers(lgraph); placeholderL...

8 months ago | 1

Answered
Pixellabeldata is not showing the segmented inforamtion in gTruth file.
There seems to be two questions to be addressed. It is important to understand the kind of data being exported from the Image ...

8 months ago | 0

Answered
MatFile grows exponentially larger in an empty table replacement loop?
This is a known issue in MAT files saved with version 7.3 based on HDF5 which does not manage freespace as effectively as it sho...

8 months ago | 0

Answered
Plot approach to steady state solution
Can you give this a try? figure title('Exact Steady State Temperature Profile') hold on plot(r_profile,Up_exact,'r-'); xlab...

8 months ago | 0

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Answered
How to convert from RGB to YUV lossless?
Short Answer: You can avoid data loss in images of type ‘float’. You most likely can’t do it with images of type ‘uint8’ or ‘ui...

8 months ago | 1

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