This study compares different similarity methods applied to spectral data. As an evaluation data set, we use vibration data from motors, both healthy and falty. In the context of condition monitoring or predictive maintenance, discriminating both states is essential.
Ref: Li, Jianfeng & Hibbert, David & Fuller, Stephen & Vaughn, Gary. (2006). A comparative study of point-to-point algorithms for matching spectra. Chemometrics and Intelligent Laboratory Systems - CHEMOMETR INTELL LAB SYST