|
@@ 821-839 (lines=19) @@
|
| 818 |
|
kwargs.pop('vMin', None), kwargs.pop('vMax', None) |
| 819 |
|
MutatedCenterParticleSwarmOptimization.setParameters(self, vMin=-np.inf, vMax=np.inf, **kwargs) |
| 820 |
|
|
| 821 |
|
def updateVelocity(self, V, p, pb, gb, w, vMin, vMax, task, **kwargs): |
| 822 |
|
r"""Update particle velocity. |
| 823 |
|
|
| 824 |
|
Args: |
| 825 |
|
V (numpy.ndarray): Current velocity of particle. |
| 826 |
|
p (numpy.ndarray): Current position of particle. |
| 827 |
|
pb (numpy.ndarray): Personal best position of particle. |
| 828 |
|
gb (numpy.ndarray): Global best position of particle. |
| 829 |
|
w (numpy.ndarray): Weights for velocity adjustment. |
| 830 |
|
vMin (numpy.ndarray): Minimal velocity allowed. |
| 831 |
|
vMax (numpy.ndarray): Maxmimal velocity allowed. |
| 832 |
|
task (Task): Optimization task. |
| 833 |
|
kwargs: Additional arguments. |
| 834 |
|
|
| 835 |
|
Returns: |
| 836 |
|
numpy.ndarray: Updated velocity of particle. |
| 837 |
|
""" |
| 838 |
|
r3 = self.rand(task.D) |
| 839 |
|
return self.Repair(w * V + self.C1 * self.rand(task.D) * (pb - p) * r3 + self.C2 * self.rand(task.D) * (gb - p) * (1 - r3), vMin, vMax) |
| 840 |
|
|
| 841 |
|
class ComprehensiveLearningParticleSwarmOptimizer(ParticleSwarmAlgorithm): |
| 842 |
|
r"""Implementation of Mutated Particle Swarm Optimization. |
|
@@ 170-187 (lines=18) @@
|
| 167 |
|
d.update({'popb': pop.copy(), 'fpopb': fpop.copy()}) |
| 168 |
|
return pop, fpop, d |
| 169 |
|
|
| 170 |
|
def updateVelocity(self, V, p, pb, gb, w, vMin, vMax, task, **kwargs): |
| 171 |
|
r"""Update particle velocity. |
| 172 |
|
|
| 173 |
|
Args: |
| 174 |
|
V (numpy.ndarray): Current velocity of particle. |
| 175 |
|
p (numpy.ndarray): Current position of particle. |
| 176 |
|
pb (numpy.ndarray): Personal best position of particle. |
| 177 |
|
gb (numpy.ndarray): Global best position of particle. |
| 178 |
|
w (numpy.ndarray): Weights for velocity adjustment. |
| 179 |
|
vMin (numpy.ndarray): Minimal velocity allowed. |
| 180 |
|
vMax (numpy.ndarray): Maximal velocity allowed. |
| 181 |
|
task (Task): Optimization task. |
| 182 |
|
kwargs: Additional arguments. |
| 183 |
|
|
| 184 |
|
Returns: |
| 185 |
|
numpy.ndarray: Updated velocity of particle. |
| 186 |
|
""" |
| 187 |
|
return self.Repair(w * V + self.C1 * self.rand(task.D) * (pb - p) + self.C2 * self.rand(task.D) * (gb - p), vMin, vMax) |
| 188 |
|
|
| 189 |
|
def runIteration(self, task, pop, fpop, xb, fxb, popb, fpopb, w, vMin, vMax, V, **dparams): |
| 190 |
|
r"""Core function of Particle Swarm Optimization algorithm. |
NiaOrg /
NiaPy
