# Ng Yong Jie

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**Content Feed**

Question

How to generate the F1-score, precision on the classification learner?

I am validating the results of the SVM using the classification learner. However, only the precision is available but I need F1-...

9 months ago | 1 answer | 0

### 1

answerQuestion

Why I can't import my data into the classification learner app?

I used the same data set variable for the classification learner app initially and it works. May I know why is it not working th...

9 months ago | 2 answers | 0

### 2

answersQuestion

How to produce the evaluation matrices (accuracy, F1 score, precision) for one-class SVM?

I am creating a one-class SVM model for anomaly detection. However, I can't find the documentation to produce the evaluation mat...

10 months ago | 1 answer | 0

### 1

answerQuestion

Which deep learning layer to use for autoencoder using the deep learning designer?

I am trying to build a stacked autoencoder combined with one-class SVM for anomaly detection. I tried training each autoencoder ...

10 months ago | 1 answer | 0

### 1

answerQuestion

How to improve accuracy in SVM using Classification Learner

The accuracy yielded from the SVM is extremely low at 2.7% (with PCA) and 3.7% (without PCA). May I know how can I improve the a...

10 months ago | 1 answer | 0

### 1

answerQuestion

How to visualize the data after the features extraction / dimension reduction using autoencoders

I've done the aitoencoder model but a visualization of the data after autoencoder would provide a better explanation in my opini...

10 months ago | 0 answers | 0

### 0

answersQuestion

Unable to open matlab example (Unsupervised Anomaly Detection)

When I copy the command and run on Matlab it shows error which the code didn't come out.

10 months ago | 1 answer | 0

### 1

answerQuestion

How to train dataset after dimension reduced with autoencoder into a support vector machine?

I am doing a anomaly detection by using stacked autoencoder and one-class svm. The stacked autoencoder is done. The problem ...

10 months ago | 1 answer | 0

### 1

answerQuestion

Can I use both of these type of autoencoder training for cell array type of data?

I saw two types of autoencoder training on the mathwork site. May I know what is the difference and which one to use for non-ima...

11 months ago | 0 answers | 0

### 0

answersQuestion

How to fully utilize my CPU and GPU for running my code?

I am running autoencoder with 10,000 neurons in the hidden layer and it takes very long time for the training. When I checked th...

11 months ago | 1 answer | 0

### 1

answerQuestion

Unable to import txt file

I tried earlier on with the exact same code and it works. However, it came out with this error when I tried again.

11 months ago | 1 answer | 0

### 1

answerQuestion

The RSME of the autoencoder is not reducing after training

When I train for the first autoencoder using the code below, the Mean Squared Error is not reducing. However when I did it for t...

11 months ago | 0 answers | 0

### 0

answersQuestion

How to use all CPU cores

I have 16 cores and 32 logical processors but only 16 out of the 32 processors are being used for my Matlab which takes very lon...

11 months ago | 1 answer | 0

### 1

answerQuestion

Adding early warning system to CNN and LSTM RUL prediction algorithm

I am trying to implement an early warning system to the RUL prediction algorithm (Remaining Useful Life Estimation using Convolu...

1 year ago | 0 answers | 0

### 0

answersQuestion

Predictive Maintenance Convolution Neural Network Algorithm Error

I copied the code from the example in Matlab website. However, there are some errors occured when I tried to run the code and I ...

1 year ago | 1 answer | 0

### 1

answerQuestion

Anomaly detection, warning system and real time simulation in predictive maintenance using LSTM and CNN

I am currently working on a project regarding predictive maintenance with LSTM and CNN. The algorithms are good to run. However,...

1 year ago | 1 answer | 0