MullOverThing

Useful tips for everyday

# Is the correlation a feature of a neural network?

## Is the correlation a feature of a neural network?

You could also consider the correlation a feature, which should be part of the neural network description, since it’s a property of the data. The nature of the correlation is not really important, unless it is something that should not be a part of the data.

## How are neural networks like the human brain?

Neural networks are computing systems with interconnected nodes that work much like neurons in the human brain. Using algorithms, they can recognize hidden patterns and correlations in raw data, cluster and classify it, and – over time – continuously learn and improve.

How are neural networks used to perform convolution?

Do convolutional neural networks perform convolution or cross-correlation? Typically, people say that convolutional neural networks (CNN) perform the convolution operation, hence their name. However, some people have also said that a CNN actually performs the cross-correlation operation rather than the convolution. How is that?

### How does a CNN perform the convolution or cross correlation operation?

Typically, people say that convolutional neural networks (CNN) perform the convolution operation, hence their name. However, some people have also said that a CNN actually performs the cross-correlation operation rather than the convolution. How is that? Does a CNN perform the convolution or cross-correlation operation?

### How to get correlation between input and output?

What command should I use in Matlab and how should I prepare that data (repeated around 1000 time) so I can get a clear correlation between the input candidate and the output. To find out correlation between given feature and target variable you can use R = corrcoef (A,B), but… do not do it!.

How does correlated input data lead to overfitting?

Or “Pattern Recognition and Machine Learning”, also by Bishop. For the correlation itself: Consider the input space having a certain dimension. No matter what transformation you use, the dimensionality will remain the same — linear algebra says so.

#### Can a neural net be used as a linear model?

Then, you will apply highly-non linear model which exploits co-occurences and features correlations. These two steps are completely incompatible. The only valid relation is – if your data is very simple and it can be pretty much modeled with linear model, then neural net will work as well.