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Tuong Nguyen Minh


Last seen: ungefär 2 månader ago
17 total contributions since 2020

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Question


Between ei(vpa(5)) and vpa (ei(5) ) which command would provide a higher precision for the integral ei(5) ?
Between ei( vpa(5) ) and vpa( ei(5) ) which command would provide a higher precision for the integral ei(5) ?

4 månader ago | 1 answer | 0

1

answer

Question


How to do classifier chain for Machine Learning in Matlab ?
I need to build a classifier chain for my machine learning problem since it considers dependencies between labels. My matlab ...

5 månader ago | 0 answers | 0

0

answers

Question


Best practice for multiple Matlab session that want to call the same function from an .m file ?
I run 10 matlab session - 10 GUI independently and each of these sessions want to call to the function that I wrote in a file ca...

6 månader ago | 1 answer | 0

1

answer

Question


Best practice for data normalization when using import model from Keras to predict ?
I have train a deep learning model in Keras where my input data is normalize by using the standard scaler https://scikit-learn...

6 månader ago | 1 answer | 0

1

answer

Question


How to transform non image data so that it will be able to train with Matlab CNN ?
For example if I am having 10 non image data point and its 10 corresponding label. Each datapoint is a 4x12 matrix where the ma...

6 månader ago | 1 answer | 0

1

answer

Question


Does Matlab have a function that provide label encoder for multi class classification ?
The Python's scikit learn library has a label encoder that encode target labels with value between 0 and n_classes-1 at the link...

7 månader ago | 1 answer | 0

1

answer

Question


How to avoid duplicate random value when open multiple matlab session ?
Currently I need to open 10 diffierent matlab session simultaneously using a .bat file. In these 10 sessions, i need to genera...

7 månader ago | 1 answer | 0

1

answer

Question


How to use GPU on model that was imported from the "Deep Learning Toolbox Importer for TensorFlow-Keras Models" ?
I have trained a network model in Keras and has successfully been able to import such model into Mathlab 2020a. How ever I am no...

7 månader ago | 1 answer | 0

1

answer

Question


Utilizing the large number of thread on recent Ryzen 3 Thread Rippper processor ?
When ever I used the parfor loop, Matlab automatically assign the number of worker to be equal to the number of physical CPU cor...

8 månader ago | 0 answers | 0

0

answers

Question


How to reflect the element above the diagonal of a matrix to the lower diagonal ?
How could I reflect all the upper element of a square matrix of size K = 3 to the lower side Like this ? Thank you very mu...

8 månader ago | 1 answer | 0

1

answer

Question


How to use try/catch so that my program rerun until it correct ?
Dear Matlab users, I need to process a large amount of data using parfor and I am running into a problem where my program can...

8 månader ago | 1 answer | 0

1

answer

Question


Modified parfor in order to not wait for all iteration to complete ?
Hello everyone I was running into a proble where I have to run a function that output some data in parallel. I notice that if I...

8 månader ago | 1 answer | 0

1

answer

Question


How to randomize the row of a table directly ?
Dear Matlab users, Currently I am puting my matrix A into the table T like this and now I want to shuffle the row of this table...

9 månader ago | 1 answer | 0

1

answer

Question


How to extract the upper diagonal part of a matrix into a 1 dimensional vector ?
Dear Matlab user community I have a K by K matrix like this for example when K = 3 A = 1 2 3 4 5 ...

9 månader ago | 2 answers | 0

2

answers

Question


Show and hide variable of interest/ unimportant in workspace ?
Dear Matlab users, I write a program with lots of variable in Matlab workspace and I only interest in a few of them for debugg...

9 månader ago | 1 answer | 0

1

answer

Question


Does anyone know how to implement density evolution for the sum product algorithm of LDPC code on AWGN channel ?
I am currently looking for density evolution (sum product, belief propagation or message passing decoding) of LDPC code on mathw...

ungefär ett år ago | 0 answers | 0

0

answers

Answered
I wrote a matlab code for obtaining BER of ldpc codes using sum product algorithm. But its BER performance is relatively close to uncoded BPSK. What can I do to change this? What should be the dimension of parity check matrix, number of iterations???
You might consider the log sum exp trick https://stats.stackexchange.com/questions/105602/example-of-how-the-log-sum-exp-trick...

ungefär ett år ago | 0