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4:44 AM
Three new tags created in the same question: , and .
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Q: Backpropagate through stochastic node

JingIn's commonly said that in VAE, we use reparameterization trick because "we can't backpropagate through stochastic node" It makes sense from the picture, but I found it hard to understand exactly what it means and why. Let's say X ~ N(u, 1). And we want to compute $$\frac{d X}{d u}$$ which is no...

In machine learning, backpropagation (backprop, BP) is a widely used algorithm for training feedforward neural networks. Generalizations of backpropagation exist for other artificial neural networks (ANNs), and for functions generally. These classes of algorithms are all referred to generically as "backpropagation". In fitting a neural network, backpropagation computes the gradient of the loss function with respect to the weights of the network for a single input–output example, and does so efficiently, unlike a naive direct computation of the gradient with respect to each weight individually....
Stochastic neural networks are a type of artificial neural networks built by introducing random variations into the network, either by giving the network's neurons stochastic transfer functions, or by giving them stochastic weights. This makes them useful tools for optimization problems, since the random fluctuations help it escape from local minima. An example of a neural network using stochastic transfer functions is a Boltzmann machine. Each neuron is binary valued, and the chance of it firing depends on the other neurons in the network. Stochastic neural networks have found applications in...
 
 
12 hours later…
5:01 PM
Motivated by this main question, I wonder if the tag is too board to be useful.
 
5:55 PM
When I look in this room, in seems that this tag was discussed a few times in the past.
It was brought up in December 2019 and then again in February 2020.
Feb 3 '20 at 18:12, by Xander Henderson
Right now, this question is the only question tagged and nothing else. The question is on its way to deletion (it has a number of downvotes, and no upvoted or accepted answer, so Roomba will grab it in a week or two).
Feb 3 '20 at 18:13, by Xander Henderson
Can we burninate the tag now? ;)
Then again in July 2020.
And it seems that it was forgotten after that.
There is this ancient post on meta: What is the 'transformation' tag for?
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Q: What is the 'transformation' tag for?

Ali CaglayanLooking at the tags, I see that transformation tag is the first tag without a tag wiki. Upon further investigation I see questions that are barely related. Some of them are geometry related, some are to do with linear algebra and others are even to do with integration. Is this tag really construc...

And the more recent one: Tag management 2020
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A: Tag management 2020

Xander Henderson Proposal: Eliminate the tag transformation. The tag transformation is too broad—there are a large number of things in mathematics called "transformations" coming from diverse parts of mathematics, and tagging a question with this tag does nothing to refine or sort these different notions. I...

@XanderHenderson It seems that you were considering burnination of . (It seems that this was before you became a moderator.)
Arctic Char asked about this tag ^^^^^ - perhaps you might have some comments on the issue.
 

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