Row-wise PCA for multi-field data has the property of preserving physical constraints in the latent space, unlike standard PCA strategies

Our approach first leverages a specific PCA procedure for multi-field data, coined row-wise PCA, which has the interesting property of preserving the constraint in the latent space. Since standard PCA strategies for multi-field data do not preserve such constraints

http://arxiv.org/abs/2608.25709v1