k-nearest neighbor normalized error for visualization and reconstruction (k3n error) – a measure for data visualization performance
For more details on k3n error, please see http://datachemeng.com/k3nerror/ or https://www.sciencedirect.com/science/article/pii/S0169743918300698.
For demonstration of k3n error, please go to https://github.com/hkaneko1985/gtm-generativetopographicmapping.