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Questions tagged [autoencoder]

Autoencoders are a type of neural network that learns a useful encoding for data in an unsupervised manner.

141 questions with no upvoted or accepted answers
6votes
0answers
153views

Unable to transform (greatly performing) Autoencoder into Variational Autoencoder

Following the procedure described in this SO question, I am trying to transform my (greatly performing) convolutional Autoencoder into a Variational version of the same Autoencoder. As explained in ...
user87590's user avatar
4votes
1answer
886views

Why KL Divergence instead of Cross-entropy in VAE

I understand how KL divergence provides us with a measure of how one probability distribution is different from a second, reference probability distribution. But why are they particularly used (...
Bahauddin Omar's user avatar
4votes
2answers
4kviews

Autoencoders for the compression of time series

I am trying to use autoencoder (simple, convolutional, LSTM) to compress time series. Here are the models I tried. Simple autoencoder: ...
netang's user avatar
3votes
0answers
560views

Autoencoder: Size of out_backprop doesn't match computed

This question was asked before and non of the answered worked for, I have the code ...
fromSAS2Spark's user avatar
3votes
0answers
386views

Chess deep learning siamese network overfitting when shouldn't in theory

TLDR: My network is training with pairs so instead of 10^6 samples it has 10^12 samples (The number of samples squared) . With that large of a data set is shouldn't overfit but it does after very few ...
EXTORY's user avatar
3votes
0answers
654views

What is the difference between KL-divergence, JS-divergence, Wasserstein distance and MMD?

I was reading about different distribution distances, and came across Kullback-Leibler divergence Jensen-Shannon divergence Wasserstein distance Maximum mean discrepancy (MMD) The book was too ...
asahi kibou's user avatar
3votes
0answers
162views

What is an intuitive explanation for the Importance Weighted Autoencoder?

I have been reading a paper by Burda et al. on Importance Weighted Autoencoders(IWAE) but I can't quite grasp what they mean by sampling the terms h1...hk. Do they mean you have separate models from ...
deZakelijke's user avatar
3votes
0answers
116views

Encoder-Decoder Sequence-to-Sequence Model for Translations in Both Directions

Is it possible to use a pre-trained sequence to sequence encoder-decoder model which translates an input text in source language to an output in target language to do an inverse translation? That is, ...
Amir's user avatar
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3votes
0answers
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Autoencoder behavior with All White/Black MNIST

I am using a stock auto-encoder anomaly detector from Deeplearning4j. I was getting unexpected results from my own variant of the auto-encoder, which looks for anomalies in my own (non-image) data, ...
Stevod's user avatar
3votes
0answers
725views

Using an autoencoder to mimic independent component analysis?

I'm trying to use autoencoders in keras to create a linear transformation similar to independent component analysis (ICA) (using this to denoise electroencephalographic data, time series of 64x100000 ...
Russell Butler's user avatar
2votes
1answer
243views

Why VAE Encoder outputs log variance and not standard deviation?

When talking about VAE (and viewing VAE implementations), the Encoder outputs: μ, log(variance) when we train the model (the ...
user3668129's user avatar
2votes
0answers
57views

How can I use autoencoders for noise detection and removal

How can I use autoencoders for noise detection and removal in a dataset with only 2 features and no labels? How should my architecture be like, such as 2 1 1 1 2 or any other? And does the output of ...
MobiusT's user avatar
2votes
0answers
136views

Convolutional autoencoder - why keras example is asymmetry model?

I'm looking on keras convolutional autoencoder example, and confused with the model structure: ...
user3668129's user avatar
2votes
0answers
27views

Deep Continious Clustering algorithm - just one output cluster

I use the DCC algorithm to cluster some data. The whole algorithm is available here, but shortly it is: construct mkNN graph of the data points (the connected components of it are the clusters). ...
Ilya.K.'s user avatar
2votes
1answer
1kviews

How to Save Model that has a TensorFlow Probability Regularizer?

Consider the following minimal VAE: ...
Parker Wieck's user avatar

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