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Tuong Nguyen Minh


Last seen: 2 maanden ago |  Active since 2020

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How to evaluate a multivariable function at different value of the variable effectively ?
I have finally found a way to do it by using the built-in combvec function all_combination= combvec(epxi,beta,a1_t2,a2_t3,xai...

meer dan 2 jaar ago | 0

| accepted

Question


How to evaluate a multivariable function at different value of the variable effectively ?
I am having a function f() this function is complicated function and its varialbles are epxi, beta, a1_t2, a2_t3, and xai. All ...

meer dan 2 jaar ago | 1 answer | 0

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How to turn this function into function with handle that is suitable for particle swarm ?
I have a function like this : function y = Sum_throughput_U1_phase2(beta,a1_t2,a2_t2, SNRdB,M, Rate1, Rate2,eta_BS,xai,L1,L3) ...

bijna 3 jaar ago | 0 answers | 0

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answers

Answered
Integrating quadruple integral ?
I have been able to deduce the answer after much frustration. The corresponding syntax should be clear all; clc; syms w z y x...

bijna 3 jaar ago | 0

| accepted

Question


Integrating quadruple integral ?
I am trying to integrate a quadruple integral with the following limit of integration I am using the integralN.m function fr...

bijna 3 jaar ago | 1 answer | 0

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answer

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) ?

meer dan 3 jaar ago | 1 answer | 0

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answer

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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 ...

meer dan 3 jaar ago | 0 answers | 0

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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...

meer dan 3 jaar ago | 1 answer | 0

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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...

meer dan 3 jaar ago | 1 answer | 0

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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...

meer dan 3 jaar ago | 1 answer | 0

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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...

meer dan 3 jaar ago | 1 answer | 0

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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...

meer dan 3 jaar ago | 1 answer | 0

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answer

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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...

meer dan 3 jaar ago | 1 answer | 0

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answer

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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...

meer dan 3 jaar ago | 0 answers | 0

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answers

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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...

meer dan 3 jaar ago | 1 answer | 0

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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...

bijna 4 jaar ago | 1 answer | 0

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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...

bijna 4 jaar ago | 1 answer | 0

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answer

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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...

bijna 4 jaar ago | 1 answer | 0

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answer

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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 ...

bijna 4 jaar ago | 2 answers | 0

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answers

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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...

bijna 4 jaar ago | 1 answer | 1

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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...

ongeveer 4 jaar ago | 1 answer | 0

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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...

ongeveer 4 jaar ago | 0