AUC_ln_K {coRanking}

Area under the RN_X curve

Description

Area under the R_{NX}(K) curve when K is put on a logarithmic scale.

Usage

AUC_ln_K(R_NX)

Arguments

R_NX

The R_NX curve, a vector of values

Details

It is calculated as:

AUC_{\ln K}(R_{NX}(K)) = \left(\sum_{K=1}^{N-2}R_{NX}(K)/K\right)/\left(\sum_{K=1}^{N-2}1/K\right)

Value

A value, the area under the curve.

Author(s)

Guido Kraemer

References

Lee, J. A., Peluffo-Ordóñez, D. H., & Verleysen, M., 2015. Multi-scale similarities in stochastic neighbour embedding: Reducing dimensionality while preserving both local and global structure. Neurocomputing, 169, 246–261. https://doi.org/10.1016/j.neucom.2014.12.095