Analysis of Population Diversity of Dynamic Probabilistic Particle Swarm Optimization Algorithms

Table 1

Description of corresponding symbols in DPPSO.

Symbol	Meaning
𝑖	The particle's number
𝑡	The number of evolutionary generation
𝑋𝑖(𝑡)	The particle 𝑖's position in the 𝑡 generation
𝑑	The dimension number of particle's position
𝑘	The number of particles in the neighborhood
𝐾	The total number of particles in its neighborhood
𝑃𝑘	The position of optimal particle in its neighborhood
Gen()	The dynamic probabilistic evolutionary operator
OT𝑖(𝑡)	The abbreviation of Outlier Trend
CT𝑖(𝑡)	The abbreviation of Centralized Tendency
𝛼, 𝛽, and 𝛾	The positive parameters