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[Repost Q] Are autoencoders and auto-associative neural networks the same thing? (sh.itjust.works)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

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This question is being reposted to preserve technical content removed from elsewhere. Feel free to add your own answers/discussion.

Original question: Autoencoders and auto-associative memory seem to be closely related. It appears the terminology changed, is there a difference between the two or did the wording simply change over time?

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[–] [email protected] 2 points 1 year ago

Original answer (source u/friendlykitten123):

Auto associative Neural networks are the types of neural networks whose input and output vectors are identical. These are special kinds of neural networks that are used to simulate and explore the associative process.

And Autoencoders are an unsupervised learning technique in which we leverage neural networks for the task of representation learning.

The difference being is that Autoencoders need at least 1 hidden layer to be constructed. But, Autoassociative neural networks could be obtained through a bidirectional associative memory, which is implemented with no hidden layer, and whose weights are learned in one step.

For more information, you can visit the following article:

https://ml-concepts.com/2022/03/10/everything-about-autoencoders/