September 2018
Intermediate to advanced
228 pages
6h 54m
English
Content preview from Swarm Intelligence
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3.3 AFSA hybridizations 55
The chaotic variables use the tent chaotic map defined as follows:
x
i+1
=
(
2x
i
x
i
∈ (0, 0.5]
2(1 − x
i
) x
i
∈ (0.5, 1]
(3.22)
3.2.11 Parallel AFSA (PAFSA)
A parallel version of AFSA was introduced in [12]. Because the main loop of the basic
AFSA only selects one of the three behaviors (chasing behavior, the swarming behavior,
and the feeding behavior) to execute the result is easy to be stagnant or be missed,
and it is not very satisfactory. Therefore, we propose an improved parallel artificial fish
swarm algorithm (PAFSA) which reduces the probability of missing the better solutions.
The improvement of PAFSA is made at the loop body
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