Particle-Swarm-Optimization
A population based stochastic algorithm for finding the minimum value in a function.
Sample Output: Ackley's Function
Mac:ParticleSwarmOptimization Laki$ java PSO.Main
Use the parameter '-p' to change the inertia, cognitive and social components.
Otherwise the default values will be:
Inertia: 0.729844
Cognitive Component: 1.49618
Social Component: 1.49618
----------------------------MENU----------------------------
Select a function:
1. (x^4)-2(x^3)
2. Ackley's Function
3. Booth's Function
4. Three Hump Camel Function
Function: 2
Particles: 1000
Epochs: 1000
--------------------------EXECUTING-------------------------
Global Best Evaluation (Epoch 0): 5.422131717799509
Global Best Evaluation (Epoch 3): 0.031656530136856986
Global Best Evaluation (Epoch 8): 0.030219907753814113
Global Best Evaluation (Epoch 10): 0.02538826049692844
Global Best Evaluation (Epoch 11): 0.025236966868810384
Global Best Evaluation (Epoch 17): 0.02166967644671658
Global Best Evaluation (Epoch 18): 0.017187649614228917
Global Best Evaluation (Epoch 19): 0.016496497260948928
Global Best Evaluation (Epoch 22): 0.0021499892932403952
Global Best Evaluation (Epoch 34): 0.0019956299229910712
Global Best Evaluation (Epoch 43): 0.0015960080106260932
Global Best Evaluation (Epoch 44): 0.0014693467707225238
Global Best Evaluation (Epoch 46): 2.986043254615822E-4
Global Best Evaluation (Epoch 49): 6.164677056474943E-5
Global Best Evaluation (Epoch 66): 1.1299483393401033E-5
Global Best Evaluation (Epoch 78): 4.5291077945819325E-6
Global Best Evaluation (Epoch 89): 3.4391925716192873E-6
Global Best Evaluation (Epoch 91): 2.141784676723546E-6
Global Best Evaluation (Epoch 94): 2.0698024343346333E-6
Global Best Evaluation (Epoch 95): 1.8336575031696611E-6
Global Best Evaluation (Epoch 98): 1.1274069358080396E-6
Global Best Evaluation (Epoch 100): 8.45729953624641E-7
Global Best Evaluation (Epoch 110): 7.325002755464993E-7
Global Best Evaluation (Epoch 112): 5.200744297439996E-7
Global Best Evaluation (Epoch 115): 7.409581215256367E-8
Global Best Evaluation (Epoch 120): 2.6267723995943015E-8
Global Best Evaluation (Epoch 126): 7.836298721031199E-9
Global Best Evaluation (Epoch 130): 6.1849121379964345E-9
Global Best Evaluation (Epoch 132): 5.719776652313158E-9
Global Best Evaluation (Epoch 142): 3.863750208665806E-9
Global Best Evaluation (Epoch 150): 2.6104345351996017E-9
Global Best Evaluation (Epoch 154): 2.4920687735630054E-9
Global Best Evaluation (Epoch 157): 4.022133737180411E-10
Global Best Evaluation (Epoch 162): 1.1517897746671224E-10
Global Best Evaluation (Epoch 167): 8.520117944499361E-11
Global Best Evaluation (Epoch 179): 6.695799470435304E-11
Global Best Evaluation (Epoch 185): 5.170619488126249E-11
Global Best Evaluation (Epoch 186): 2.0325074956417666E-11
Global Best Evaluation (Epoch 189): 1.5980106127244653E-11
Global Best Evaluation (Epoch 195): 3.3644198538240744E-12
Global Best Evaluation (Epoch 206): 1.3749001936957939E-12
Global Best Evaluation (Epoch 207): 2.2026824808563106E-13
Global Best Evaluation (Epoch 224): 1.9895196601282805E-13
Global Best Evaluation (Epoch 226): 1.6342482922482304E-13
Global Best Evaluation (Epoch 229): 9.947598300641403E-14
Global Best Evaluation (Epoch 236): 9.237055564881302E-14
Global Best Evaluation (Epoch 238): 7.460698725481052E-14
Global Best Evaluation (Epoch 240): 1.4210854715202004E-14
Global Best Evaluation (Epoch 242): 7.105427357601002E-15
Global Best Evaluation (Epoch 245): 3.552713678800501E-15
Global Best Evaluation (Epoch 257): 0.0
---------------------------RESULT---------------------------
x = -2.1652314152008058E-16
y = 2.8876173252079404E-16
Final Best Evaluation: 0.0
---------------------------COMPLETE-------------------------
Usage
Navigate directly above the PSO folder.
To run it with the default parameters:
java PSO.Main
To run it with custom parameters:
java PSO.Main -p