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Fig. 23.


Photometric dataset of 111 million sources processed with UMAP to reduce from ten features to two in supervised (top row) and unsupervised (bottom row) schemes, using models trained on the spectroscopic test dataset. The resulting two dimensions are plotted, with sources binned per pixel and coloured by the resolvedr parameter (left column), an SDSS colour |PSF u − PSF z| (middle column) and a WISE colour |w1 − w2| (right plots). Structures are as in Fig. 14, but the plot is more densely populated.

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