Research Article
Hierarchical Swarm Model: A New Approach to Optimization
Table 2
Parameters of the PS2O.
| | The number of agents (species) in level-2 | | Population size of each species in level-1 | | Species’ ID counter from 1 to M | | Individual’s ID counter from 1 to N | | Dimension counter from 1 to D | | Generation counter from 1 to max-gen | | The th individual’s (of the th species) dimension’s position value | | The th individual’s (of the th species) dimension’s velocity value | | The th dimension value of the th individual’s (of the th species) personal best position | | The th dimension position value of the best position found by the th level-2 species | | The th dimension value of the community best position | | The constriction coefficient | | The learning rates for individual cognition | | The learning rates for intraspecies cooperation | | The learning rates for interspecies coevolution |
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