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- W4380687130 abstract "The diffusion maps embedding of data lying on a manifold have shown success in tasks ranging from dimensionality reduction and clustering, to data visualization. In this work, we consider embedding data sets which were sampled from a manifold which is closed under the action of a continuous matrix group. An example of such a data set is images who's planar rotations are arbitrary. The G-invariant graph Laplacian, introduced in a previous work of the authors, admits eigenfunctions in the form of tensor products between the elements of the irreducible unitary representations of the group and eigenvectors of certain matrices. We employ these eigenfunctions to derive diffusion maps that intrinsically account for the group action on the data. In particular, we construct both equivariant and invariant embeddings which can be used naturally to cluster and align the data points. We demonstrate the effectiveness of our construction with simulated data." @default.
- W4380687130 created "2023-06-15" @default.
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- W4380687130 date "2023-06-12" @default.
- W4380687130 modified "2023-10-18" @default.
- W4380687130 title "G-invariant diffusion maps" @default.
- W4380687130 doi "https://doi.org/10.48550/arxiv.2306.07350" @default.
- W4380687130 hasPublicationYear "2023" @default.
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