Links & references
==================

1. GTM algorithm by Bishop et al: https://www.microsoft.com/en-us/research/wp-content/uploads/1998/01/bishop-gtm-ncomp-98.pdf

2. kernel GTM: https://www.elen.ucl.ac.be/Proceedings/esann/esannpdf/es2010-44.pdf

3. GTM classification models: https://www.ncbi.nlm.nih.gov/pubmed/24320683

4. GTM regression models: https://www.ncbi.nlm.nih.gov/pubmed/27490381

5. Visualizations were realized using `altair <https://altair-viz.github.io>`_

6. Source code: https://github.com/hagax8/ugtm
