Figure 4
The idea of the Shake LFPSO algorithm. The red line represents a cost function in a single dimension. Dark red arrows indicate location and velocity vectors of particles (solutions) in the population Xt. (a) Shake condition: all particles are trapped in a local minimum. (b) Shaking event: location and velocities of all particles are randomized on the basis of Pgbest. The maximum of the velocities is multiplied by k1, while is lifted by a factor k2. (c) After LFPSO leap, the best new solution Pgbest is found. |