Dear Tahsima... Very nice explanation 👍🌹. No voice needed.. Could you please provide the data file so that we can practice this tutorial.. Thank you so much
To develop an integrated drought index via ANN. Is generated ANN script is defined as the integrated drought index or any other output parameter defines the index
I have never done SIR models before. But you can check the MATLAB file exchange. www.mathworks.com/matlabcentral/fileexchange/75100-sir-epidemic-spread-model
Hi Santosh! Please go through the MATLAB official website to see how you can get weights and biases. www.mathworks.com/matlabcentral/answers/79894-how-can-i-generate-the-weights-and-bias-values-after-training-a-network?s_tid=answers_rc1-2_p2_MLT
The dataset is automatically segmented into training data, testing data and validation data in the tool. At the end of training, there is an option for testing additional datasets in the tool.
hello i have following dataset wind speed at 10m and 50 m for 4 years from 2014 to 2018 i suppose that use data of first three from 2014 to 2018 as training data then use last year 2018 as testing to predict wind speed at 50 m is this good idea or need to enhace
You might want to use k-fold distribution. Sampling a portion of each year as training data and the rest as testing data. It might give you better results.
Exactly this is my problem. For example I have 8 files each has 121 rows. I want to predict the outcome of file 8. What I did is put 7 files as an input array with 3 columns and 859 rows and and 8th file has 121 rows which is my target. Is this right ir wrong. Basically I want to predict the outcome by having 8 files. How do I do this in matlab? And by the way do I need to optimize the data
Hi Mam;
It was a very helpful video. I am more interested in getting the data that you have used. Can you please provide me with the excel file
how these data would be applied on to make a map of a study area ?
Can you explain how do to add another hidden layer ?
Dear Tahsima... Very nice explanation 👍🌹. No voice needed.. Could you please provide the data file so that we can practice this tutorial.. Thank you so much
To develop an integrated drought index via ANN. Is generated ANN script is defined as the integrated drought index or any other output parameter defines the index
Could you please clarify your problem?
Thank you Tahsina. I would like to ask if this method produce any mathematical model such as transfer function or other mathematical model?
ANN models won't generate any equation or function.
Good one! Is it necessary to preprocess data and perform scaling (normalisation) before feeding in ANN
Yes! Because machines don't understand units, they will only process numbers!
@@TahsinaAlam Thanks
Hi, very good demonstration. I have 4 inputs and 3 outputs. Shall i used ANN ?
Yes you can
Thank you mam. I have one doubt I have 2 images 1 input and 1 output . how can I use this image in this tool??
Please try convolutional neural network for that. Or you can convert the image into a pixel table at first.
can you send the data set you used i would be grateful
Dear I want to ask one thing. How to make input and target variables for SIR models? How to create data file for SIR model?
I have never done SIR models before. But you can check the MATLAB file exchange.
www.mathworks.com/matlabcentral/fileexchange/75100-sir-epidemic-spread-model
Sir, how do we get weights???? For that network?? If we get weights we can form equation right??
Hi Santosh!
Please go through the MATLAB official website to see how you can get weights and biases.
www.mathworks.com/matlabcentral/answers/79894-how-can-i-generate-the-weights-and-bias-values-after-training-a-network?s_tid=answers_rc1-2_p2_MLT
Training ok
But how do you test the data
The dataset is automatically segmented into training data, testing data and validation data in the tool. At the end of training, there is an option for testing additional datasets in the tool.
how did you know about the accuration of model?
you can check the R-square value, if this result is equal to or greater than 0.8, then the model training is good for prediction.
Can i view the predicted output? is there any way to change the weight?
Yes you can extract the predicted output and view them. The weight can not be changed inside nntool as far as I know.
How to save the NN after its creation; hw to use it later on for ex for cross-validation
You can export the code
@@TahsinaAlam : yes true ; done it ! . Now looking forward to utilize the prepared architecture as in to down load on hardware
Is the normalization process (scaling) done by Matlab intrinsically?
Yes. Between 0 to 1
hello i have following dataset wind speed at 10m and 50 m for 4 years from 2014 to 2018 i suppose that use data of first three from 2014 to 2018 as training data then use last year 2018 as testing to predict wind speed at 50 m is this good idea or need to enhace
You might want to use k-fold distribution. Sampling a portion of each year as training data and the rest as testing data. It might give you better results.
How can I use ANN model as a fitness function in Genetic algorithms?
Sorry but I do not have much idea about genetic algorithms.
@@TahsinaAlam Ok Thank you.
Have you got the answer? the same problem for me now
How do i get the Excell file Mom !
how to use model after train
You can export the model and reuse the code to test different dataset.
simulation?????//
hi, sir was very helpful thanks a lot.
bru
Hell there I have a problem. As I do not know what to put in the input and Target files exactly.
Should they have the same nbr of rows or columns
Hello Zaki, please put same number of rows in input and target files. Column numbers can differ.
Exactly this is my problem.
For example I have 8 files each has 121 rows.
I want to predict the outcome of file 8.
What I did is put 7 files as an input array with 3 columns and 859 rows and and 8th file has 121 rows which is my target.
Is this right ir wrong.
Basically I want to predict the outcome by having 8 files. How do I do this in matlab?
And by the way do I need to optimize the data
@@popeofchina8551 You need to put your 7 input files side by side. The input array must have 121 rows.