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Hamza Ali


Last seen: 7 mois il y a |  Actif depuis 2017

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Question


which quantile value is good for prediction ?
Hello, Quantile random forest model is used to predict 1 year solar radiation. Question : which quantile value should i use ...

presque 5 ans il y a | 1 réponse | 0

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réponse

Question


Autocorrelation plots for stationary time series
Hello, Please, i have stationnarized times series (removing trends and seasonality using differencing) in order to find most s...

presque 5 ans il y a | 1 réponse | 0

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réponse

Question


How clustering analysis improve neural networks performance ?
Hello, I divided my training set using clustering analysis into several subsets in order to improve performance. But, i don'...

plus de 6 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
Optimal hidden nodes number
Hello, Thank you for your response. I compute R_square with following relationship : R_square = 1 - (trainPerform / var(...

plus de 6 ans il y a | 0

Question


Optimal hidden nodes number
Hello everybody, In order to determine optimal hidden neurons, Trial and error algorithm has been used (trial = 10, 10 < H <...

plus de 6 ans il y a | 3 réponses | 0

3

réponses

Question


Trial-and-error or K-fold cross-validation
Hello, As researcher, i would like to ask for efficient algorithm to determine ANN's architecture (number of hidden neurons ...

presque 7 ans il y a | 1 réponse | 0

1

réponse

Question


Optimal hidden nodes number
Hello everyone, I would like to find optimal hidden nodes number using structured trial an error. I did the following simulation...

environ 7 ans il y a | 3 réponses | 0

3

réponses

Question


How to normalize new inputs with mapminmax ?
Hello, I have normalized my data with mapminmax which gives values between -1 and 1. However, when I present new inputs to my n...

environ 7 ans il y a | 1 réponse | 0

1

réponse

Question


Negative output neural networks
I trained my neural network, but it generates negative values even though the target values are positive. I wonder why ?

environ 7 ans il y a | 1 réponse | 0

1

réponse

Question


Set initial weights of neural networks
Hello everyone ! I would like to set the initial weights of artificial neural network in order to define relevant number of h...

environ 7 ans il y a | 1 réponse | 0

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réponse

Question


Permut Data for Neural Networks
Hello eveybody ! I use Neural Networks for prediction and i would like to apply random permutation to DataInputs(2*1199) and...

environ 7 ans il y a | 1 réponse | 0

1

réponse

Question


How to initialize weight and biases for single hidden layer ?
Hello Everyone ! Please i need your help ! In order to create artificial neural networks for solar radiation prediction, I n...

plus de 7 ans il y a | 1 réponse | 0

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réponse

Réponse apportée
Error using load Number of columns on line 2 of ASCII file
Hello everyone ! I followed your advice literally, which led me to the following result: %%%%%%%%%%% Load training...

plus de 7 ans il y a | 0

Question


Error using load Number of columns on line 2 of ASCII file
Hello everybody ! I want to make a prediction by using Extreme learning Machine (ELM), but i encountered a problem when rea...

plus de 7 ans il y a | 5 réponses | 1

5

réponses

Réponse apportée
Error using load Number of columns on line 2 of ASCII file
Thanks very much for your reaction, the problem is solved using the xlsread function. However, I get only one column that the nu...

plus de 7 ans il y a | 0