Weighted by the Vp (variable importance in projection) index, which indicates the importance of the sensor variables to the quality variables, the new monitoring statistic, Qv, is developed to ensure that the most vital sensor faults be detected successfully.
Step 2: Construct the projection index function (Q(a)).
Actually projection pursuit classification model is a dimensional reduction technology, with optimizing projection index function and finding optimal projection value as its core problem.
In doing so, projection pursuit (PP -based dimensionality reduction by transform (DRT) techniques are develoPP -basedhis purpose where the Projection Indimensionalityed to define the direductionf interestingness of a PP-transformed component, referred to as projection index component (PIC).
Such a resultant PDRT is called progressive dimensionality reduction by projection index-based projection pursuit (PDR-PIPP) which performs PDRT by retaining an appropriate set of PICs for information preservation according to their priorities.
With the help of artificial fish-swarm algorithm (AFSA), it optimizes the projection index function, seeks for the optimal projection direction, and improves AFSA with the application of self-adaptive artificial fish step and crowding factor.
Characteristics of (z(i)) are that local projection points should gather as much as possible, projection index function could be expressed as following: Q(a) = S_{z} D_{z} (3)where (S_{z}) is standard deviation of projection value (z(i)), (D_{z}) is local density of projection value (z(i)).
Thus, Vegfa 120/120 mice had a significantly increased ipsilateral projection index as well as defasciculation of the ipsilateral and contralateral optic tracts (Erskine et al., 2011), but the ipsilateral index and shape of the optic chiasm appeared unaffected in Vegfa 188/188 mice (Fig. 3B,C).
We evaluated three aspects of hypothalamic function in long‐lived mice with GH and/or IGF‐1 defects: (i) hypothalamic axonal projections; (ii) indices of inflammatory signals, each of which we had found to be altered in long‐lived CL mice; and (iii) responses to leptin injection.
An indicator called projection similarity validity index (PSVIndex) is designed to select the best solution and cluster number.
