The obtained results confirm that the most suitable threshold values do differ depending on the analysis method.
where | X ( k ) |, k, and α denote the spectral amplitude, the spectral number, and the most suitable threshold of the input signal, respectively.
As most suitable threshold, the threshold that maximized the overall accuracy on the training set was selected.
The most suitable threshold was at delta = 0.378 for SAM, and the sensitivity and FPR were 38.89% and 23.58%, respectively (Table 2, Figure 2 and 3).
The most suitable threshold in the 5 μg application, where the slope of the ROC curve was 1, was at delta = 0.378 for SAM, and the detected number of true SFPs, the sensitivity and FPR were 26,936, 38.89% and 23.58%, respectively (Table 2, Figure 2).
Unlike the previous methods, this work proposes an automatic and online approach, named automatic setting similarity threshold (ASTS), capable of estimating the most suitable similarity threshold value in accordance with the silhouette coefficient for individual searches, without any previous knowledge of the collection.
This optimization requires setting the most suitable decision threshold for the soft-decision cooperative spectrum sensing algorithm, described in Section 3.1, and, according to this threshold, setting an appropriate resource sensing periodicity for UEs, i.e., MGRP.
According to the application class, the optimizer actuator selects the most suitable upper threshold among the three defined frequencies.
IPA analyses were then carried out on the different sets of selected genes to determine the most suitable EV occurrence threshold for identifying the largest set of genes associated with LPS activation.
