粒子群算法Matlab工具箱！

madio

PSOt, particle swarm optimization toolbox for matlab.
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- s3 ?, N, _3 m( g# Z5 |& y+ XMay be distributed freely as long as none of the files are
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4 f' i, v: f" y0 D3 ?% D' x* FSend suggestions to bkbirge@yahoo.com
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, w6 N, [0 c: s1 Y4 K4 ^* @0 }+ q' c2 IUpdates will be posted periodically at the Mathworks User
2 d% Y) n" r9 _4 h& r0 N# nContributed Files website (www.mathworks.com) under the
1 U' X/ `& b4 B! w8 ^, a0 R) g# XOptimization category.
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* j1 i2 S4 t' E- hTo install:
3 x& r5 F7 `- z3 r2 eExtract into any directory you want but make sure the matlab
/ |3 j! S4 F5 S% I; v. f; P5 L/ x0 gpath points to that directory and the subdirectories
0 H8 J/ M6 j- s& H# K& L, ]'hiddenutils' and 'testfunctions'.
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Enjoy! - Brian Birge
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INFO
) |% i6 Z) C8 R# D# E. ]* @Quick start: just type ... out = pso_Trelea_vectorized('f6',2)
1 [, k2 X$ L' nand watch it work!
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This is a PSO toolbox implementing Common, Clerc 1", and
4 P9 R" S6 {% [. B9 kTrelea types along with an alpha version of tracking changing
environments. It can search for min, max, or 'distance' of
user developed cost function. Very easy to use and hack with
& N+ M2 B9 u* D- s7 Ureasonably good documentation (type help for any function and
it should tell you what you need) and will take advantage of
. J- P  |4 j8 g9 L7 E: t( u0 Fvectorized cost functions. It uses similar syntax to Matlab's
% y* q* S9 G0 I, w& @0 Soptimization toolbox. Includes a suite of static and dynamic
test functions. It also includes a dedicated PSO based neural
1 I  }7 F& S1 Q+ }network trainer for use with Mathwork's neural network toolbox.
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2 {8 U4 k* z% y2 C: O% W: X7 d0 gRun 'DemoPSOBehavior' to explore the various functions, options,
and visualizations.

. F5 ~. ^' |- \0 k, U$ _1 E" ?Run 'demoPSOnet' to see a neural net trained with PSO
(requires neural net toolbox).


) e0 p$ E* n% q" w/ A* dThis toolbox is in constant development and I welcome
1 g) P' |2 Y+ ?; z, jsuggestions. The main program 'pso_Trelea_vectorized.m' lists
various papers you can look at in the comments.

Usage ideas: to find a global min/max, to optimize training of
neural nets, error topology change tracking, teaching PSO,
investigate Emergence, tune control systems/filters, paradigm
for multi-agent interaction, etc.
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Files included:
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9 ~- z5 C- d* G+ i) [# ~** in main directory:
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1 U$ S  `7 b' R/ z( m, d0) ReadMe.txt - this file, duh
1) A Particle Swarm Optimization (PSO) Primer.pdf  -  powerpoint converted to pdf presentation explaining the very basics of PSO
2) DemoPSOBehavior.m - demo script, useful to see how the pso main function is called
3) goplotpso4demo.m - plotting routine called by the demo script, useful to see how custom plotting can be developed though this routine slows down the PSO a lot
4) goplotpso.m - default plotting routine used by pso algorithm
5) pso_Trelea_vectorized.m - main PSO algorithm function, implements Common, Trelea 1&2, Clerc 1", and an alpha version of tracking environmental changes.


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9 M" `2 T: P* K! i+ z" B3 j** in 'hiddenutils'

1) forcerow, forcecol.m - utils to force a vector to be a row or column, superseded by Matlab 7 functions I believe but I think they are still called in the main algo
& q6 A3 e& p4 d# f2) normmat.m - takes a matrix and reformats the data to fit between a new range, very flexible
3) linear_dyn, spiral_dyn.m - helpers for the dynamic test functions listed in the 'testfunctions' directory



  D6 J  q# {$ h% s6 s** in 'testfunctions'
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6 g4 K( o  W9 b; m. T9 {9 \' xA bunch of useful functions (mostly 2D) for testing. See help for each one for specifics. Here's a list of the names:
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Static test functions, minima don't change w.r.t. time/iteration:
1) Ackley
2) Alpine
" A  {! s, \# h/ \ 3) DeJong_f2
4) DeJong_f3
5) DeJong_f4
: m2 Q3 q' E2 B: J/ M 6) Foxhole
7) Griewank
8) NDparabola
9) Rastrigin
10) Rosenbrock
11) Schaffer f6
  U+ s# u6 \9 I; n12) Schaffer f6 modified (5 f6 functions translated from each other)
' z- W, A, P6 L# {# j% c/ w6 ~13) Tripod
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% A5 Q: @+ V2 \% Y% l1 U1 W( Q9 oDynamic test functions, minima/environment evolves over time (NOT iteration, though easily modifed to do so):
14) f6_bubbles_dyn
2 U5 W) d2 n, f+ b- _, E! L15) f6_linear_dyn
16) f6_spiral_dyn


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** in 'nnet' (all these require Matlab's Neural Net toolbox)

: R/ u/ `/ J% f* F0 w+ W2 e- x" } 1) demoPSOnet - standalone demo to show neural net training
1 V/ l9 X/ {% ?8 Q& I 2) trainpso   - the neural net toolbox plugin, set net.trainFcn to this
2 O( v+ d- o9 E& I3 y/ h4 P 3) pso_neteval - wrapper used by trainpso to call the main PSO optimizer, this is the cost function that PSO will optimize
4) goplotpso4net - default graphing plugin for trainpso, shows net architecture, relative weight indications, error, and PSO details on run
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枫叶下的你

发表回复嗯嗯嗯ヽ(○^^)
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1150865889

回复一个赚体力
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2268733244

太好用了，博主牛牛牛
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932624145

感觉很不错的

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57475207

发表回看看感觉挺好用复
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