Beantwortet
Why sets Matlab automatically the activation functions for a neural network like this?
The simplest useful approximation is is a series of blocks with different heights and widths. The simplest useful DIFFERENTIAB...

mehr als 4 Jahre vor | 0

Beantwortet
Artificial Neural Networks Hidden Layers
Number of input and output nodes is determined by the data. Number of hidden layers and nodes is determined by the program auth...

mehr als 4 Jahre vor | 0

| akzeptiert

Beantwortet
Neural Network Classification Results
The original class sizes are unequal. Hope this helps THANK YOU FOR FORMALLY ACEEPTING MY ANSWER Greg

mehr als 4 Jahre vor | 0

Beantwortet
Please help with narnext error Subscripted assignment dimension mismatch.????
x5=data_inputs(5,1:17); x6=data_inputs(6,1:17); x7=data_inputs(6,1:17); x8=data_inputs(7,1:17); x9=data_inputs(9,1:17); Hop...

mehr als 4 Jahre vor | 0

Beantwortet
Hyperparameter tuning of neural network
One hidden layer is always sufficient. However, sometimes 1. Knowledge of the physical or mathematical process may lead to a ...

fast 5 Jahre vor | 1

Beantwortet
Different results in training a CNN with Matlab 2018a and Matlab 2019a
You are making the task difficult by going backwards. Start with a single hidden node and add nodes one at a time. Hope this...

fast 5 Jahre vor | 0

Frage

NEURAL NETWORK DATA SET EXAMPLES
For demonstration of old AND new concepts and ideas, PLEASE use the sample NN data sets provided by MATLAB help nndatas...

fast 5 Jahre vor | 0 Antworten | 0

0

Antworten

Beantwortet
cross validation in neural network using K-fold
%i am using neural network for classification but i need to use instead of holdout option , K-fold. ==> FALSE!. You mean y...

fast 5 Jahre vor | 0

Beantwortet
Can the number of Predictors be different for Train and Test data?
Of course not. The ultimate purpose of training is to create a model that works well on non-training data. Thank you for form...

fast 5 Jahre vor | 0

Beantwortet
How to check the robustness of the Neural network model?
If you are going to test with white noise, include white noise in your design (i.e., training + validation) Then, given a fixed...

fast 5 Jahre vor | 0

| akzeptiert

Beantwortet
NARX with Complex Values Input
Decades ago I learned (the hard way) to forget about trying to use complex computations for NNs. However, if you insist, let us...

fast 5 Jahre vor | 1

Beantwortet
Why sets Matlab automatically the activation functions for a neural network like this?
That is a standard configuation for a neural net. It's operation is explained in every elementary text. Thank you for formally...

fast 5 Jahre vor | 0

Beantwortet
How to plot Network performance?
You have lost training information, So the only thing left is output vs input. Hope this helps. Thank you for formally ac...

fast 5 Jahre vor | 0

Beantwortet
Elman Neural Network (ENN)
size(P_TRAIN) = [ 1296 1728] size(T_TRAIN) = [ 432 1728] Hope this helps. *Thank you for formally accepting my answer* ...

fast 5 Jahre vor | 0

Beantwortet
NARX re-training in closed loop
Using 100 feedback delays makes no sense. Only use feedback delays that are within the correlation length of the function. See...

fast 5 Jahre vor | 1

Beantwortet
Can CNN train separately instead of learning everything at one time?
I try to have the order of inputs as random and uncorrelated as possible. Otherwise the probability of extensive learning/unlear...

fast 5 Jahre vor | 0

Beantwortet
In evaluating a neural net, should NMSE be based only on test subset of data?
For serious work I calulate FOUR values of NMSE: 1.70% Training 2.15% Validation 3.15% Test 4.100% All for 10 (typically...

fast 5 Jahre vor | 0

| akzeptiert

Beantwortet
Is the "patternnet" a fully connected neural network
Yes. The only difference between my classifiers and regressors is the sigmoid output layer instead of linear. Hope this helps....

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
How to train and test time series data in Neural Network Toolbox
I order to test a net you have to compare the actual output with the desired output. Hope this helps. THANK YOU FOR FORMALLY...

etwa 5 Jahre vor | 0

Beantwortet
Artificial Neural Network implementation and to know the importance of each of the input on output(Response) - wanted help
The way I determine the importance of a single input is 1. Calculate the error using all inputs 2. Loop over inputs ...

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
transfer function purelin equation based on neural network toolbox
Read the documentation help purelin doc purelin Greg

etwa 5 Jahre vor | 0

Beantwortet
How to use a sequenceInputLayer with a regressionLayer (neural networks) ?
The answer is obvious: help regressionlayer doc regressionlayer *Thank you for formally accep...

etwa 5 Jahre vor | 0

Beantwortet
Time Domain Signal for neural network
If you have rpm I don't see why time is important. However, there is no reason you cannot do both and see what difference it ma...

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
Adding hidden layers to a patternnet hurts accuracy?
The global minimum is achievable with a single hidden layer. With more hidden layers you add more local minima; most of which ...

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
Training neural network - Forward Pass
You are very mixed up. I suggest going to the library and finding a good elementary NN book. Obviously, the appropriate info is...

etwa 5 Jahre vor | 1

Beantwortet
Hello, I'm working with artificial neural network.
Three layers are sufficient: input/hidden/output The input layer is NOT a neuron layer. The number of input nodes is the dimens...

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
Why neural network gives negative output ?
How different is the new data (e.g., Mahalanobis distance)? If you know the true outputs, how do the error rates compare? If y...

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
Rsq from NMSE in NN
NMSE = mse(trnopdb-net(trnipdb))/MSE00 i.e., NO TRANSPOSES 2. Rsq = R^2 3. Yes. Use separate calculations fo...

etwa 5 Jahre vor | 1

| akzeptiert

Beantwortet
HOW DO I SEARCH IN ANSWERS ???
Oh! It only opens up at the top of the page if the page is sufficiently wide. Since I often use large type and 2 pages per scre...

etwa 5 Jahre vor | 0

| akzeptiert

Beantwortet
Interpolation using Neural Networks
Plot the data. Look at the plots Are there regions that are seasonal? Separate the data that is relevant to your problem Ca...

etwa 5 Jahre vor | 0

| akzeptiert