Physics, Data Science, Least Squares, Chemometrics, Spectroscopy.
Wikipedia. https://en.wikipedia.org/wiki/Spectroscopy [2] Khan, S. S., & Madden, M. G. (2012). New similarity metrics for Raman spectroscopy. Chemometrics and Intelligent Laboratory Systems, 114, 99–108. [3] Implementing the five most popular similarity measures in Python.