Swarm Intelligence Algorithms

234 Krill Herd Algorithm

Step 9 in Algorithm 17 is utilized to address Equation (18.2). In step 11,

sensing distance for every krill individual is calculated. In Equation (18.2),

N

i

depends on two different factors α

target

i

(for the best neighbor effect) and

α

local

i

(for local neighbor effect). Those factors are computed in step 10 and

13, respectively. In step 15, inertia weights for induced motion by other krill

individuals (ω

n

) and inertia weight of the foraging motion (ω

f

) are evaluated.

The movement caused by other krill individuals (N

new

i

) is computed in step

16. In steps 17 and 18, β

food

i

and β

best

i

, two necessary factors for evaluating the

foraging ...