Questions tagged [feedforward-neural-network]

For questions related to feedforward neural networks (FFNNs), which are also sometimes called multilayer perceptrons, but these two expressions may not always be interchangeable.

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9
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1answer
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What is the time complexity of the forward pass algorithm of a feedforward neural network?

How do I determine the time complexity of the forward pass algorithm of a feedforward neural network? How many multiplications are done to generate the output?
5
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2answers
672 views

What exactly is averaged when doing batch gradient descent?

I have a question about how the averaging works when doing mini-batch gradient descent. I think I now understood the general gradient descent algorithm, but only for online learning. When doing mini-...
2
votes
1answer
265 views

Why do we need convolutional neural networks instead of feed-forward neural networks?

Why do we need convolutional neural networks instead of feed-forward neural networks? What is the significance of a CNN? Even a feed-forward neural network will able to solve the image classification ...
12
votes
2answers
2k views

What is a recurrent neural network?

Surprisingly, this wasn't asked before - at least I didn't find anything besides some vaguely related questions. So, what is a recurrent neural network, and what are their advantages over regular (or ...
17
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2answers
296 views

How do I decide the optimal number of layers for a neural network?

How do I decide the optimal number of layers for a neural network (feedforward or recurrent)?
5
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2answers
174 views

Neural network to detect "spam"? [closed]

I've inherited a neural network project at the company I work for. The person who developed gave me some very basic training to get up and running. I've maintained it for a while. The current neural ...