Gramian-Angular-Field
Update Log 2021-12-17: Initial Upload The Gramian Angular Field is a tool which can convert 1-D time series data into 2-D images for further analysis. Mapping from Catesian Coordinates to Polar Coordinates The first step of this algorithm is to rescale the data in Catesian coordinates to [0, 1] or [-1, 1] by one of the following methods: x~−1i=(xi−max(X)..
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Variational Auto-Encoder
Update Log 2021-07-24: Initial Upload Auto-Encoder It is an unsupervised approach for learning a lower-dimensional feature representation from unlabelled training data. The encoder is trained usually with a decoder trying to recover the original data xxx. L2 loss between the reconstructed and original input data is calculated to facilitate the training ..
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GAN & Wasserstein GAN
Update Log 2021-07-14: Initial Upload Generative Adversarial Network A generator G and a discriminator D G’s goal: minimise objective such that D(G(z))D(G(z))D(G(z)) is close to 1 (discriminator is fooled into thinking generated G(z)G(z)G(z) is real) D’s goal: maximise objective such that D(x)D(x)D(x) is close to 1 (real) and D(G(z))D(G(z))D(G(z)) is c..
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