Artificial Neural Networks Regression Model

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Thank you Ismail for this video! I loved the video and really got excited seeing the various R-squared values produced using different kinds of neural networks (e.g. different activation function)!

tymothylim
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Sir, you saved my day ❤️ I was struggling with my neural network bcz of not normalising the input and outputs... As you said, i have normalised them and then the MSE was reduced close to 5E-5. Now the prediction is almost perfect

venkatyalamati
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thank you. appreciate your time and explanation

kudimaysey
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ismail Hocam, aşağıdaki kod da sorun ne hocam?

iris
df <- iris[, -5]
scaledDf <- scale(df)
scaledDf <- as.data.frame(scaledDf)

str(scaledDf)
set.seed(245)

Sam <- sample(1:nrow(scaledDf), size = 0.75*nrow(scaledDf))

traindata <- scaledDf[Sam, ]
testdata <- scaledDf[-Sam, ]

nn <- neuralnet(Sepal.Length ~ ., data = traindata,
hidden = c(2, 2),
threshold = 0.01,
stepmax = 1e+05,
linear.output = TRUE)

tahmin1 <- predict(nn, testdata$Sepal.Length)


Error in if (ncol(newdata) == { :
argument is of length zero

ozgurates
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Very good video for an absolute beginner like me! So how can I plot the graphs to show the best performance in terms of the R2 against the number of epochs or in this case the max_iter number?

ronaldssebadduka
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Hello sir can you please upload the data sets that you used here??
Would be highly appreciated.

sudippandit
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I have just used a random dataset...but that provide me result of scaler fitting between -1 to 0...and accuracy level more than 1....what is the reason behind this?

ananyaroy
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hello, sir thank you for your nice video!
and I want to generate weights and biases from my model... how should I code to do so??

dawitbenti
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I really don't like this trial-and-error approach where people tune the various degrees of freedom of the system to reach a non well defined goal. It gives no information about what you're trying to achieve and why, hence when things don't work you have no idea why and when things work you still have no idea why, giving the chance to unpredictable catastrophes to happen. There's an insane vastness of theory and literature available for these topics which shall be better to understand (not fully) at least the philoshopy you're following.

MattRch
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??! Final mean absolute error = 1251 ??

Shiva-zjzj