The Calculation of Discriminating Power for a Series of Correlated Attributes

A quantitative differentiation method for plastic bags by infrared spectroscopy, thickness measurement and differential scanning calorimetry for tracing the source of illegal drugs

“…T I m and DH I m denote the temperature and enthalpy of melting measured in the first heating ramp, T c and DH c are the temperature and enthalpy of crystallization, T II m and DH II m are the melting temperature and enthalpy measured in the second heating ramp. pairs over the number of possible pairs [17]. The DP of IR spectroscopy was 0.60.…”

Forensic differentiation of paper by X-ray diffraction and infrared spectroscopy

“…To quantify the discriminating power (DP) of the technique, the approach of Smalldon and Moffat was applied, i.e. the ratio between the number of differentiated pairs over the number of possible pairs was calculated [20]: Four sample pairs, i.e. J and Q, J and P, N and P and I and O had indistinguishable R A and R B values, within the experimental error.…”

A quantitative differentiation method for plastic bags by wide angle X-ray diffraction for tracing the source of illegal drugs

“…The discriminating power (DP) of each of the considered features was calculated as the ratio between the number of differentiated pairs over the number of possible pairs [21]. Sixty-four and 75% of all possible sample pairs could be distinguished if the crystallinity in the parallel or perpendicular direction, respectively, was taken into account.…”