Optimization is a method of the application of succeeding iterations with application of variations on initial idea [11], i.e., optimization is fine-tuning of variables of system to get preferred output.
The Peavey AT-200 guitar with the Antares Solid-Tune™ intonation system constantly monitors the precise pitch of each individual string and electronically makes any corrections necessary to ensure that every note of every chord and riff is always in tune, regardless of variables like finger position or pressure.
However, the performance-based tuning of such variable-gain controllers is far from trivial.
Contrary to the trial and error tuning of the variable structure feedback gains reported in the literature, the controller parameters selection in this paper is done using an improved differential evolution (IDE) optimization approach.
Tuning of fuzzy design variables eliminate the requirement of expertise needed for setting these variables.
Recently, the NTIA group announced the release of a new version of VQM metrics especially tuned for variable packet loss rate.
The tuning of a sensitive variable, in the context of estimating the population mean of a sensitive variable, is also introduced through an unsolved exercise.
The resulting operational understanding of the behavior of the laser pyrolysis system has enabled tuning of the numerous experimental variables so that both low and high molecular pyrolysis products are transferred to the GC/TOF-MS analysis system efficiently and reproducibly.
Next, we applied the least absolute shrinkage and selection operator (LASSO) by changing a tuning parameter to reduce the number of variables down to ≤ 15 (Friedman et al. 2010).
Tuning of hyperparameters for RF (number of variables used to build a single tree, mtry) and PLS-DA (number of dimensions, K, and/or sparsness parameter, η) was done using a nested cross-validation scheme, comprised of stratified and repeated 10×5-fold resampling (inner loop) combined to a search grid of length 10 for the hyperparameters (outer loop).
As mentioned in the preceding section, parameter η j tunes the impact of variable σ upon the corresponding 3D system (6a)–(6a).
