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Nayan

Last seen: 1年以上 前 |  2023 年からアクティブ

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I am an engineer at Engineering Development Group at MathWorks. My responsibility is to provide the best support for application like Signal/Audio Processing, Machine Learning and Deep Learning. Disclaimer: Any advice or opinions here are my own, and in no way reflect that of MathWorks

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  • 3 Month Streak
  • Knowledgeable Level 2
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Proof of convergence for fmincon
Hi theOptimizer, MATLAB's “fmincon()” function implements several algorithms. MATLAB will choose automatically the best possib...

1年以上 前 | 0

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How to create low pass filter to remove the signal greater than 40pi?
As I understand, your problem requires a low pass filtering frequency range from "0-40pi". For this, you are using the filter de...

1年以上 前 | 0

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Why I can't use the hhspectrum
Hi, I would suggest you refer to the following link for the Hilbert-Huang transform:- Hilbert-Huang transform For any error ...

1年以上 前 | 0

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How to remove false positives in audio classification?
Hi I understand that the problem is with the excessive number of "False Positives" in the classification of footsteps from wood...

1年以上 前 | 1

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Reproducing 'pspectrum' using 'periodogram'
As I understand it you would like to understand the working of "pspectrum(x)". I would suggest you to note down the following po...

1年以上 前 | 0

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How to eliminate periodic frequencies (line processing) from image and what parameters to use?
Hi, As I understand, you would like to perform fence removal from the image. My research and exploration have found that deep-...

1年以上 前 | 1

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Spectrogram computed on the Bark scale
Hi As I understand, you need to find the spectrogram on the bark-scale. This can be achieved by the following steps :- Read th...

1年以上 前 | 0

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How can i use Discrete wavelet transform (DWT) on a matrix
Hi As I understand you want to perfrom discrete wavelet transform on a matrix. This can be performed using dwt2(X,wname). For ...

1年以上 前 | 0

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How to Fourier Phase Scramble a specific area of an image?
Hi, As I understand you need to perform phase scrambling on the image. Phase scrambling is a technique used in signal processin...

1年以上 前 | 2

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1-day ahead Load forecasting using AR and ARX models
Hi, As I understand you are trying to train an order AR(1) model for forecasting from historical electricity load data. To desi...

1年以上 前 | 0

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How to obtain the uncertainties in the obtained fitting parameters from the confidence bounds in the curve fitting toolbox?
Hi The uncertainty of a fitted parameter can be estimated from the confidence bounds obtained from the Curve Fitting Toolbox in...

1年以上 前 | 0

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How to scramble an image using Gyrator transform? matlab code?
Hi Though the gyrator transform is not directly available in MATLAB. You could use the FFT and permutation matrix. Find the a...

1年以上 前 | 1

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How to use Nadam optimizer in training deep neural networks
Hi I assume you want to use "adam" optimizer in place "sgdm". You need to simply replace the "sgdm" key with "adam" keyword. o...

1年以上 前 | 0

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Invalid training data. Predictors must be a N-by-1 cell array of sequences, where N is the number of sequences. All sequences must have the same feature dimension and at least
Hi, I reproduced the exact error with a test .txt file. The code is failing at the line net = trainNetwork(sequences,responses...

1年以上 前 | 0

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Trying to divide a 3D Scatter plot into grid to count number of colored points in each grid cell
Hi, As, I understand, you are required to find the area of the heart with the most isochronal crowding (defined as the region w...

1年以上 前 | 0

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GANs not scaling up or down
Hi, GANs makes use of two network namely generator and descriminator. To train GANs with images a convolutional neural network...

1年以上 前 | 0

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How to select samples to leave out when building my regression model and automate it
Hey NCA As described above, I would suggest you to perform k-Fold Cross Validation. K-Fold Cross Validation helps in splitting...

1年以上 前 | 0

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How is data characterised as 'spatial or temporal' in the context of neural networks?
Hey Nikolas Katsaros, As your error suggests, the input data to your fullyConnectedLayer has both spatial and temporal dimensio...

1年以上 前 | 0

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How to calculate and plot the power spectral density of complex envelope
Hey Emmanuela, As I understand you want to calculate the and plot the power spectral density of complex envelop. I would sugg...

1年以上 前 | 0

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Simple Simulink model on fuel valve using first order system without PID Controller for an aircraft system
Hey Phuntsog As I understand you want to design a fuel valve using a first order system. I would suggest you to refer to Implem...

1年以上 前 | 0

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neural network in Matlab: vectors at output instead of a single concrete number
Hey Mary, As I understand from your description, you want to design a neural network that outputs two set of vectors for a giv...

1年以上 前 | 0