Understanding the Architecture and Functioning of VAEs

Variational Autoencoders (VAEs) are strong generative models that are made to figure out how a dataset's probabilities are distributed. There are two major parts that make up a VAE's architecture: the encoder and the decoder. The decoder shrinks the input data into a hidden space with fewer dimensions, keeping only the most important parts of the data. The decoder then uses this hidden version to put together the raw data. This process helps the model learn a short and useful way to show the data, which can then be used to make new samples that are similar. During training, VAEs improve two types of loss: the reconstruction loss, which makes sure that the input data is correctly rebuilt; and the Kullback-Leibler (KL) divergence, which limits the latent space in a way that is based on probability and encourages smooth and continuous data generation.

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Generative AI

Understanding the Architecture and Functioning of VAEs

Beginner 5 Hours

Variational Autoencoders (VAEs) are strong generative models that are made to figure out how a dataset's probabilities are distributed. There are two major parts that make up a VAE's architecture: the encoder and the decoder. The decoder shrinks the input data into a hidden space with fewer dimensions, keeping only the most important parts of the data. The decoder then uses this hidden version to put together the raw data. This process helps the model learn a short and useful way to show the data, which can then be used to make new samples that are similar. During training, VAEs improve two types of loss: the reconstruction loss, which makes sure that the input data is correctly rebuilt; and the Kullback-Leibler (KL) divergence, which limits the latent space in a way that is based on probability and encourages smooth and continuous data generation.

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