设为首页收藏本站

最大的系统仿真与系统优化公益交流社区

 找回密码
 注册

QQ登录

只需一步,快速开始

查看: 18446|回复: 10

[交流] 关于turtle的使用问题

  [复制链接]
发表于 2008-3-14 16:14:39 | 显示全部楼层 |阅读模式
我将customer设为 turtles-own,初始值赋为-1,为的是当turtle遇到同伴时就将其中的一个turtle认为自己的customer,然后进行交易,如下:
& l; J4 C1 }' W$ D5 F. Oto do-business
% A9 I! T+ H- _8 } rt random 360
: z8 S1 A& A/ D# U fd 1. z& D: u% W* s5 n3 p$ c/ j, T- t! w/ |
ifelse(other turtles-here != nobody)[; J. c: W  B  G) K4 m3 p3 O1 Y3 f
   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.: Y4 ~) R6 Q* x* f
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
5 j8 I$ n  z# Y4 I   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer7 W1 p  I4 @1 e. I, J( p  ]$ |$ ~
   set [trade-record-one-len] of self length [trade-record-one] of self. i/ E8 c- P! A) F0 i
   set trade-record-current( list (timer) (random money-upper-limit))# A" B- m1 t2 Q3 N' |
2 H4 n  V) |% t9 X' g( C  W
问题的提示如下:$ g, v9 [7 I! S$ W. C
9 M& x& q7 z. }3 @% o( D
error while turtle 50 running OF in procedure DO-BUSINESS5 t+ q' J3 ]5 b3 {& v
  called by procedure GO
5 G( `4 H& l/ F) S% n7 |OF expected input to be a turtle agentset or turtle but got NOBODY instead." f! [0 C7 [) N# \! f5 ?2 j) A' {
(halted running of go)
" m; c" S  T3 ?' N1 \* a( Z3 Y: K6 |' C3 T
这是为什么呢?我看到一些netlogo中自带的例子也是用这种方法来找turtle的同伴的啊?期待高手解答~~( w& C! U8 N, C/ t  @% V9 r
另外,我用([who] of customer)来获取turtle的编号的方法对的吗?如  set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    中.

本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有帐号?注册

x

评分

参与人数 1仿真币 +30 +2 收起 理由
booblu + 30 + 2

查看全部评分

发表于 2008-3-17 17:34:20 | 显示全部楼层

资料不全

你把你的所有程序传上来我看一下,估计不是大问题。(南京大学)
 楼主| 发表于 2008-3-18 13:10:54 | 显示全部楼层
你好,这是我现在正在写着的程序,以上问题就在其中,请多指教- k% J( _3 M. c2 g6 T# G
globals[
; S- Q7 G+ C4 r9 y# Gxmax4 Y4 B9 W2 H% D: D* W: g
ymax
1 e1 L$ N0 c3 k& R* h- jglobal-reputation-list
: v! {% e( N/ U" _6 V5 U5 X3 }
0 x  x/ Y6 M& N; S& W/ j;;
每一个turtle的全局声誉都存在此LIST
- \4 b) ?- W! r7 D  v9 acredibility-list
, n' p% A. S3 u- {$ P;;
每一个turtle的评价可信度4 c# U: V- d) F5 q* Z
honest-service( |6 H8 X  d2 ^! U- w. K* M, i+ B) f
unhonest-service  G& y( q) J( p0 F
oscillation1 x: G' n' K& ^/ v/ d9 e
rand-dynamic1 M2 M: V3 D/ z7 w8 N. C) H
]
4 M( r% h5 K- D( {
0 L. Q" K2 ^6 M$ m9 W" `/ D  o+ nturtles-own[- s( c& F( `3 H; P4 C: ]- a5 f
trade-record-all
3 @. g1 E/ k* N$ h: i3 v- E;;a list of lists,
trade-record-one组成, r/ }0 Z2 t- ]
trade-record-one
& T7 k# V# I- q; h8 ]# I1 W8 v;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
; e1 W: x$ O: y) @9 a* B! o; b: r. H3 n- k- ?, w' v
;;[
对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
+ U; c5 X4 _2 R; p5 E) Otrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]9 P% V9 A6 q% n  [$ m9 z" Q7 ~
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
) C# T, N" X) C- `- `) G# aneighbor-total; ]4 \* W' @/ \; Y" }# x
;;
记录该turtle的邻居节点的数目6 p% Z; e/ c" R! L+ F3 K7 l2 r9 ~
trade-time
# o2 P2 g4 d+ n9 |! d+ k;;
当前发生交易的turtle的交易时间3 P5 u8 }3 G1 T! b( e
appraise-give
4 V" p' z( A" y( n0 z$ T. K;;
当前发生交易时给出的评价
# N. ]; k3 f% U' pappraise-receive; _0 X7 t, ]( R5 I
;;
当前发生交易时收到的评价
" q( T$ j( ?8 y( [1 bappraise-time& s, N' a6 ?& p" a. f9 F2 y" H
;;
当前发生交易时的评价时间
8 d: R, p" k" A; D$ glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: y2 X+ W! A! ]' Q4 i  u  i; P0 ^trade-times-total
  P9 ?: i  J: h" \% U;;
与当前turtle的交易总次数$ E( n$ A( K8 O' ~0 v
trade-money-total8 f+ w* r" A. K- G2 k( K
;;
与当前turtle的交易总金额
( ~  ?: h+ u' mlocal-reputation
9 I: Z) V& R) ?3 V- N5 ^" p- }) |global-reputation7 @7 P8 V; ?& y+ J) w
credibility
' b% y- F0 x& F: V4 g0 {1 {% j;;
评价可信度,每次交易后都需要更新* v8 q& ~1 u' i) Y4 B
credibility-all& Y* v4 d  S( z8 D, K5 K
;;a list of lists,
credibility-one组成。[[1j的评价质量的评价][2j的评价质量的评价]……[ij的评价质量的评价]……],其中一共有people项,根据
6 |5 R' ~$ U0 `% P6 k8 X4 V) B9 Z/ Z  z! I+ e
;;turtle
的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5
" A; d/ H) ~0 F: U: o8 ^( v% |credibility-one
8 Z0 [" l7 b! w7 c0 ]& K% ]! p3 X;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people+ d7 N: E1 m) a; |; R5 N% f1 L
global-proportion
% y5 L/ D# G2 }/ v; x6 Mcustomer7 G% L- h2 r8 U# o
customer-no
* @% W+ G1 L* m6 X( b# x/ o. ktrust-ok. O. M" V4 k; @6 J3 R
trade-record-one-len;;trade-record-one的长度6 G$ R$ }# O" ~3 E
]' d+ p0 ]+ N8 a* M+ s: \
+ m% n& R7 B5 C4 V
;;setup procedure
3 r7 H0 o! @( _+ G0 C2 {' f: R6 k& ]) O) W
to setup' [& E  P4 n! w) o  F- M

' N2 e) |% z/ `7 p" `8 X8 O) {ca

3 a! g6 e$ j/ g+ s: C" ~
$ [1 g1 F; T; binitialize-settings

. m' j  g$ ]# g. ?) t8 W! M: C/ ^( X0 V) v1 ?9 Y
crt people [setup-turtles]

. N. P  {4 h3 S' J
5 p% |- K$ U2 i$ @& K0 sreset-timer
! W5 m: R, R  ~. ^

/ L1 f9 j, F9 X5 F0 I( {4 s; F" h: wpoll-class

8 Z; k9 w& z* r% ?
9 [4 e; {4 l* O4 [# T- c* J, _setup-plots

$ [5 Q6 ]' A; V" H9 p( l/ J
4 {% l$ I! R+ m1 p' x* bdo-plots
* d6 F9 T$ Q/ ]* t  o# x
end
: j6 |0 h7 K9 l$ ^8 T! x3 [; \& O8 }8 T
to initialize-settings. r% _4 Z3 J5 H6 ?

: h9 ]. X9 U5 A+ Aset global-reputation-list []
3 v- N( c5 \( O- t
+ s5 r/ K9 Q2 s6 J0 j, V
set credibility-list n-values people [0.5]

* l# s3 V7 L3 O8 g" q! S% ?. d/ S% R$ G1 y' Q  X' T
set honest-service 0

7 R8 R5 f! L* X
( b9 i7 n- V% ~4 R, sset unhonest-service 0

/ }% N7 Y: \; \6 y: L7 v8 y; q+ z$ J$ m3 o
set oscillation 0
6 a) ^$ ~  n" [

6 V8 h) m4 E* Z* ~set rand-dynamic 0
" z0 `) p) O& N4 v9 N
end$ I, F, \6 i. ~! Z4 K! [
& j' d, V. t+ e8 C) `
to setup-turtles
7 @! Q" W' L2 h2 Rset shape "person"  V: }" b. W; }! `: P( v8 b( Q
setxy random-xcor random-ycor
/ T, a( ~4 R& O* w) A5 Vset trade-record-one []
, b( T6 b2 k! g" X  _6 X; Z0 j  k! q, E
6 j& [" s+ S! t7 m
set trade-record-all n-values people [(list (? + 1) 0 0)]
" \& d: ~1 p" L
) a+ y' \7 o, e! A! f% n
set trade-record-current []' K1 q1 [! Q* s: X8 a
set credibility-receive []+ Y$ m3 T1 V% |8 T
set local-reputation 0.5
! }8 }  t0 l$ B( |set neighbor-total 0% O) p2 M8 _# v0 \9 y; k, v
set trade-times-total 0
6 H1 {( w! D- T! C6 {' I" w# P7 ^6 @set trade-money-total 08 w! P7 Y( b9 L! z
set customer nobody
' U1 Z5 z7 f3 X$ Q/ bset credibility-all n-values people [creat-credibility]2 ^" S  X! Z, d& c1 W6 |: a
set credibility n-values people [-1]
7 ?+ Z+ C* z, Q' Y2 rget-color# G8 i6 }5 w0 l0 t. T7 S$ C, p
, o8 Q1 f5 R& g, l9 i* ]
end
8 V$ s/ |& `; @7 J/ F3 [
8 n: _" M# }. |. t4 gto-report creat-credibility
  [) b2 Y; r4 X4 yreport n-values people [0.5]
, k: l6 K% z' d# p& @% g2 Qend
" u  W6 t* k$ K3 b' l4 ]9 d: g. ~$ n* j* \8 `
to setup-plots5 I6 F7 q# Z( g  I

/ |* h& t8 X6 n2 g7 G- w, oset xmax 30

2 u' l1 }0 ~' v/ e
1 j- K% }1 x  x& H3 ^$ J( xset ymax 1.0

, j+ Z, v" m3 w2 Z* H' g1 Q7 _1 u6 g% n6 o9 J
clear-all-plots

0 m0 Q4 l( p! H; B
- U" n2 l' h& @& Y! s" ^# u; _setup-plot1

/ {. Y9 O5 [9 f. D- ]- k% U+ Z
1 q. _; J5 N7 u" u9 _8 W4 n) U6 ]setup-plot2

1 d8 E" i+ k; C( f3 A  b) |- }, u7 _$ Q. [" I) N+ s: `, {
setup-plot3
$ {! F  i0 T; j0 a$ ^
end
) A* c2 s% `8 O* I; {! G5 B3 h3 |4 d9 b
;;run time procedures
% j+ L/ d2 V+ G
/ m8 b% e2 a1 ]! b0 p6 Rto go
0 g# c. T% K& H" X+ t, Y, u7 ?# g& }- l7 z3 a
ask turtles [do-business]
: }9 d. R* B* t( U2 T6 W
end5 g5 K! S" O2 Q% d- I  G) Q; E& a

7 E" o1 @3 G1 A+ H7 V( Oto do-business
8 d% P) X. U( K( A( R+ J' L* d
4 E6 V7 X. ]5 L2 Z
( K7 x' R: N2 e3 r2 [8 f
rt random 360

& j" [; N/ \$ J) y
9 L1 R6 {! E) I: e" {6 @9 p9 @2 f: N9 ]fd 1

$ C& V2 ~' Z# B/ W- \" I+ {/ d( ?4 R9 m6 J! T
ifelse(other turtles-here != nobody)[

, ?$ v% p1 V) N$ \4 W8 A# C7 \$ t
3 O  S$ v( ~* V# ^2 M. Sset customer one-of other turtles-here

+ \1 ^) j! q; M6 M$ w1 B) T. D( u$ p5 w! s5 o5 Z/ `  R
;; set [customer] of customer myself
0 s* w& U  L( }8 |2 |5 z

9 g: z3 {+ q3 x+ ^" e1 T0 h6 j. d( b& Lset [trade-record-one] of self item (([who] of customer) - 1)* c7 r9 t# w8 h7 n
[trade-record-all]of self3 U; s5 I- t7 Q/ Y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 ?- N$ ?% b# ^$ }/ ], t6 O

$ z1 q, }4 A0 j. Eset [trade-record-one] of customer item (([who] of self) - 1)
) l; L! U. o: ]0 \) G[trade-record-all]of customer

# C# k2 R) h' t  t
  {: [: \. k7 `set [trade-record-one-len] of self length [trade-record-one] of self

5 C/ V7 c" U- ]
: u. c- C$ V3 e" g; k5 _7 Kset trade-record-current( list (timer) (random money-upper-limit))
3 k4 b. U0 S3 r* ?

# `* f. t! p3 Z" g/ i% m- B: Wask self [do-trust]
: b1 D& e! J  ~& W;;
先求ij的信任度9 T* p4 Z, H& [1 t

# T9 e# _% U, v' V3 E# aif ([trust-ok] of self)& h3 U( e/ `- l# }% i
;;
根据ij的信任度来决定是否与j进行交易[4 T' `- J9 x% b
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself! w+ t5 q; `8 P
$ g' P) @) w! O5 U* d; T0 x
[
0 p. v/ N$ j% [# ]1 ^# D
5 I% K/ l9 y* Z  I7 a
do-trade

/ f+ \/ d$ z5 l5 h$ B, Z+ l+ |$ p
update-credibility-ijl

7 l/ q) U% S/ H% X% A, R+ W6 h
update-credibility-list
! t) U. t3 r3 e! \
, Z" d* K. S& S# Y2 x$ \$ Y

, z2 M$ h. O. J+ c- K5 O4 oupdate-global-reputation-list

8 x9 G$ i" R; s* G9 r, ~3 Q5 i
+ {2 _7 F) x4 D( h! f3 W9 e9 p+ ?poll-class

3 C; {' Q3 a. J# y0 D) t' L4 q2 {) m1 q' E
get-color

0 w* p5 W7 _, H0 e. g1 u6 _3 J) D* o4 j' ^# U6 W7 }
]]
1 m7 h' ^4 J/ O% _/ X' C+ D/ N, [3 ?/ M) R
;;
如果所得的信任度满足条件,则进行交易  `  d5 ~3 f: {, b$ c+ v$ G
2 x) x. d  z: r6 K" H
[

! F2 F$ E: C5 A% D+ c. b
# v0 i3 u' I% D2 S+ K# F$ {+ Rrt random 360

8 }4 p. }  A3 r) H( p0 N- F/ Q; A& E: ^6 ?/ E  r6 g( x
fd 1

; M8 G4 z; c7 b% [; \0 X+ Q/ l, o1 `: M
]
/ k1 I+ L) s4 I3 {4 @

% I- i. X. |3 d6 m: n( Xend
8 C" G' z7 ]" K" [

& K% X4 Z0 X1 n5 r* g% ]4 {+ P6 Cto do-trust 3 ~0 u+ l6 L; T) C+ c
set trust-ok False
: W$ ~# M9 i- k1 C( O5 i5 }; ?5 X  `0 a% |

/ J4 Z- L" J: D) T6 i& I  _let max-trade-times 0
6 t1 l  S4 k2 ?' }4 fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: }1 s$ G( M: I4 H6 f
let max-trade-money 0/ W- f. ~6 d7 y  g8 Z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ d, d- J+ z6 [$ F4 Y* alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 {/ N, v# [' w# n1 \* m
# n" z( B8 {# _9 ~

- M/ F, Q3 Z7 {' L' T- Y$ @+ _get-global-proportion
4 ?3 ~8 Y( g0 {. C9 n+ `' U! Q! Ulet trust-value7 r4 c/ R$ y  c: i' S$ a- v% z5 S
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

8 F5 e* p7 A: K. j# S5 w+ P) eif(trust-value > trade-trust-value). t: t" r7 g4 r9 ~. G! S
[set trust-ok true]" v7 q9 C& g% u6 G9 b0 p
end+ [2 t/ X4 G7 I+ M  q, z

* U! J# I7 U, r6 e+ B" o* }to get-global-proportion
) _4 {3 i: d! Y) g4 M8 M' c/ |0 ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' x( F$ C/ L% U1 u! r) }- |5 I) j
[set global-proportion 0]; y; d" a" F1 A. e9 u
[let i 0: ]2 s/ _  ]& U; l$ U' Y3 u- k
let sum-money 0
  z7 Q; \) `3 \* G' e+ awhile[ i < people]
& }# Y" v2 Z5 l/ U6 H, `* v[
9 Y' L; }1 x/ B$ Aif( length (item i5 y- s; ^& q) F, z, k' z
[trade-record-all] of customer) > 3 )
: g+ S' E% i! x! J- h3 X$ B
[* a2 t- W% J( n+ ^8 q3 x- \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ C, G# O* B3 a7 k]. I5 I- f5 U# I) J/ ~+ v  U
]
" h  h* X: h5 T. E) f$ B, y, Q' glet j 0
+ X7 C$ T3 c8 f3 hlet note 0
4 A0 w. E7 E3 V+ nwhile[ j < people]
( L7 K9 a3 v0 v+ O5 [4 K" z[
' e1 j( s1 g6 I% H# ?4 m; V5 Dif( length (item i
4 t3 s& f7 h  v9 O# c[trade-record-all] of customer) > 3 )

3 C1 D: k' }8 R[5 T  X" @3 M; H5 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( }+ m% [* d* n8 L/ N6 G
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 b7 _5 Y% g9 Z3 Q5 f[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- B. Z9 M6 i6 F* B2 C]1 ]2 L, Q2 l) U6 D8 {' y
]
( Q& G- r6 x. n* ~set global-proportion note6 F4 D, H: H4 p1 X- G
]
! I6 h! K- k5 p$ y' D- b$ k% k1 L( Zend
9 l7 |7 n2 |# d& Q
" |: z0 Z! M% L, r" Gto do-trade
' m; i. X& S% K. [  M( W, ^;;
这个过程实际上是给双方作出评价的过程8 S( `" A8 L; r+ E0 y& W1 P
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价7 D9 p* S2 ]( d, o) x9 }2 Z1 U8 |3 _. g
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价7 ^$ }9 t: Q, B4 }3 O3 e* k5 L
set trade-record-current lput(timer) trade-record-current
8 F. T5 w7 d% c;;
评价时间. }4 Q- B9 _7 T. Z! d9 K1 o
ask myself [
/ F- V7 Y* t+ q% b2 ~! A  {update-local-reputation
% V+ t4 d7 V2 B' yset trade-record-current lput([local-reputation] of myself) trade-record-current/ w# F5 z# w$ B/ N% Z# l& o
]
. u; p6 D7 m; w) y$ O/ Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 B; z$ ?0 J3 `( _+ V' v2 L;;
将此次交易的记录加入到trade-record-one
" W( S. h/ I1 [+ fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 ~: j! o8 p3 X+ h& O
let note (item 2 trade-record-current )' A  j4 d. C  B! F' R$ [
set trade-record-current# A' x* x5 H9 Q% q
(replace-item 2 trade-record-current (item 3 trade-record-current))
( \% M8 f6 V3 j9 B
set trade-record-current  q4 n: r2 z8 L. y9 n! k
(replace-item 3 trade-record-current note)
! Q) b8 W$ I$ v+ k& j  ?0 @  T& O2 D5 m/ b% p: l' H

. R6 `! j6 b- }5 K# bask customer [) |2 ]) e% c5 x" e
update-local-reputation
, r6 i5 U; d& R0 J5 n) uset trade-record-current0 S8 f$ \% Z' ]# W4 {2 j2 A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 g. p5 h( `5 `/ k1 a( q  s
]1 T  Y4 N. J2 R% e% x" \0 ^! w
. j) d. u. h1 i4 E! @: V& M

7 u0 Z' g) f' ^& M0 aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 N7 [8 \0 I7 |3 n! t, x  z( h
1 L& m: L' e6 j) Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& u7 h* b5 D( h
;;
将此次交易的记录加入到customertrade-record-all
' l% v* G8 j' Wend9 V8 |6 f0 W; N4 t' o+ r

0 S$ t$ V' L. l7 `4 m0 Y% f. n) eto update-local-reputation3 W0 d0 t3 X/ P7 }  s, Q8 `$ Z) ]2 N
set [trade-record-one-len] of myself length [trade-record-one] of myself
; [0 u% R) T. u  y1 l) g) n2 ?* G
9 Y" J. _! G$ v* D  u' c! W$ s7 P, \/ W4 X. V
;;if [trade-record-one-len] of myself > 3
1 H( z9 i2 D: G% ~. X; d& d
update-neighbor-total
( g, ^9 \) h1 t3 F& S9 c+ J;;
更新邻居节点的数目,在此进行
2 C+ P& A1 _) ^2 l, Z$ _let i 3- g7 ?" V" O1 e# F1 {: p; C2 _, F
let sum-time 0
( O  t' z/ ?4 u2 L" W# i# g  \while[i < [trade-record-one-len] of myself]" N* e; m' t$ N; W" g4 P) ~
[- J/ r/ M3 u* i9 ?$ @: k" Z+ {/ F/ t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- K- g; }# y# B, ?7 m
set i
4 ?/ Y# v. c" O2 V; A( i + 1)

2 F. @; m" n0 T) k# W! L8 l- W7 ]]! j/ D4 [. B) N+ N9 f. L
let j 3& x) S9 ~) G6 ]$ q
let sum-money 0
: w1 \6 p$ M, U3 i8 T+ Bwhile[j < [trade-record-one-len] of myself]
! p" g& A+ E% }6 g) n[2 g: L, X% K& ^, D
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)* D" ^3 D- f7 w
set j( D, H- {. B' n7 X2 c! e* c
( j + 1)
5 r6 r2 G% f) d" w( C
]
9 A! a- h' j- b5 k7 Y/ K/ Jlet k 3& E* L; M9 O+ t) A& g
let power 03 |% O2 x7 m0 K' E5 J' |/ ?. t9 p
let local 0
5 V! [# E6 v9 i7 cwhile [k <[trade-record-one-len] of myself]
$ M! w  [3 ?7 J. I. B6 l( u[
7 S' N9 s9 F" a0 Pset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) * E2 q8 Y- j' k7 R& O; b# S
set k (k + 1)2 M$ `0 Y4 {+ p0 y3 J5 I
]; T" \8 g; L! V/ g/ ^& h  r
set [local-reputation] of myself (local)
/ i" J1 @( s' l/ U8 D- G" A& N: R& Cend, |& Q2 l" C0 W: V% H

. ?. d9 s* c/ n6 g+ [; ^5 l) vto update-neighbor-total8 u% \- v: r! M: Z! }% q
4 o4 D0 t1 I* w+ f" D  I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 u* L2 B& q! N) s. f. X

& r0 K# h8 V! c; i

2 y5 @8 p1 C4 z  Send
/ N$ ]- d9 k# U$ W5 X& H1 Z! S0 u+ K
to update-credibility-ijl
! `- g( w3 \* n% q
% w4 u5 u3 d4 b9 [- {0 `3 i% E;;
思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。. g" X6 O( [; Y
let l 0, U& k: ]( J% _! u# U
while[ l < people ]
' B# \. j% h0 O) F4 h+ m5 G& D;;
j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价3 u( N/ `! e4 Y5 ^
[
2 N1 @$ G( \1 w* Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 B/ ~0 R4 |9 i
if (trade-record-one-j-l-len > 3); L5 L5 w: X4 S3 l" \1 `. U
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与ltrade-record-one
# |" j# V* g% }let i 3) ?$ Z( J$ q5 _
let sum-time 0, g& s: s* w1 C: Z1 t- \
while[i < trade-record-one-len]
! l# f  W* P, q( J[' B2 t7 E7 R! H7 ~0 N
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- Q  I; k: d" p: @
set i
0 x& ^0 n' _4 r4 M0 x' m( i + 1)

& ?, W9 M' B( W5 k+ Y]7 k. A! |7 l0 T8 m$ o; a
let credibility-i-j-l 0% i4 ?2 N0 b5 `
;;i
评价(jjl的评价)5 E! s; ~" `# [/ ^- w5 t
let j 3
6 D- \! a# b+ y# zlet k 45 d" W$ X) V+ Z7 \; v* [
while[j < trade-record-one-len]
+ _% h, S" l# X+ R0 O1 V[, `# |% }) }8 P+ b. t, y$ r$ @, J
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在ik次给l评价的这一时刻,l相对于j的局部声誉
$ \: X3 Q+ w9 Sset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
& H& y) R& Z' N3 }& {' ]' fset j
1 V% C8 m. Z/ C! Q( j + 1)

0 ]0 s8 {# s( }/ ~; v) k$ l$ S1 Z]3 |$ Q. M. P. y! w5 f- i( _
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))+ a; l; ^- \$ R) n  y: v

! H6 {( _9 Z7 G' z1 h! [
% D2 m4 L3 ?1 g# W$ F6 [" Y
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 _+ D! @. a& o6 M
;;
及时更新il的评价质量的评价/ c# V& E* N7 j; T$ O
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; B( z/ D2 g3 w* i" v" k" i; aset l (l + 1)) A# W- k# V( |- i
]. |: Q" z9 N7 _- Q# X
end* R8 c' H) r" ^' n

& d5 l9 h5 d, N( O3 E* v4 jto update-credibility-list# o# s5 N2 }9 M& e$ I- B
let i 0
1 `- W3 S+ H! x1 {+ ~: nwhile[i < people]
: ]8 A! @" ?+ u, r9 T$ n9 a- m[
+ q/ `# Y3 L" X  [. `/ dlet j 0
: y3 [3 b5 G4 X# G$ w( `" I7 a" h6 @let note 0, N, \/ \: a' B7 d! t" n- D
let k 01 T+ X; e' _) B% q! g+ D/ s
;;
计作出过评价的邻居节点的数目. J! @5 f' F' F6 C1 @9 p8 T
while[j < people]7 C* E$ g, x4 }4 F3 b# b
[& O  }# o1 h3 S4 j- ^
if (item j( [credibility] of turtle (i + 1)) != -1)/ k& }  M& Y2 F7 ]9 [
;;
判断是否给本turtle的评价质量做出过评价的节点
  q8 N5 e, s& l7 n" ?[set note (note + item j ([credibility]of turtle (i + 1)))
- I+ U' a) @2 X& r;;*(exp (-(people - 2)))/(people - 2))]
+ r& y, V; N: F8 j  Z  H* O
set k (k + 1)& Z* T& _8 H9 r0 C7 S
]& O5 i  L; e; y+ o7 D3 D( j
set j (j + 1)8 T6 u) R! a& _4 t& _; s4 A
]
- p7 d5 V+ V! K' s% m8 y7 l$ Tset note (note *(exp (- (1 / k)))/ k)
0 _  i6 Q: R7 a& fset credibility-list (replace-item i credibility-list note)' o/ v: n) ?8 b; Y
set i (i + 1)- f, d4 I8 S/ P0 u+ v% Z
]# e  U+ W- p: i4 U
end% M" S) \* _5 L! P6 ?  V

9 S) f& t+ h9 {- U" Fto update-global-reputation-list
8 }: F, A0 Z+ B5 o/ slet j 0
+ `" n0 L( I0 R! ywhile[j < people]
% U( ~1 v% K. U4 N2 n9 b7 F* Z[
) n) N  S0 t; L4 flet new 0% I) d4 z* F- j
;;
暂存新的一个全局声誉
) ?) {) b1 `4 B) clet i 09 h6 H$ S' [0 ?: k
let sum-money 0
: Q# f. R- M1 b* jlet credibility-money 0& q$ }, I/ A7 d* s2 f% O
while [i < people]
' g1 S$ H6 x1 {[2 b1 T; k. y, ?9 |
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 q6 j/ M& J6 [$ x5 u* k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 H0 d1 q# J' n/ n* m
set i (i + 1)
0 z9 Z9 i1 T9 H7 q6 _]
0 n2 _6 y  H2 r3 A3 x6 Y- \7 K3 j1 dlet k 0
: Q, N. V0 t5 m9 ulet new1 0
4 B+ ?9 h7 D) v0 ~% o: M- ~while [k < people]( b4 j8 f7 j8 c" ~
[
! G/ j4 E; |: w. V: _+ h" A4 }+ Tset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
7 G! X! n3 o) ?4 }set k (k + 1)( T; l! t9 K: u9 g
]( ^- R, f; M, [6 s$ o4 Y* F
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 M) r# ]  ?" N$ B
set global-reputation-list (replace-item j global-reputation-list new)& D: v6 G0 c9 F) \
set j (j + 1)* }- N7 E, L0 ^) Z, B
]$ g! T5 H3 }: P6 o* }
end
5 \- y) s  D5 I5 [1 J
* n0 Z, v: ]( p$ ?5 ?( r- |* L/ W$ u2 v- N6 a6 T) L
/ v/ N# p2 H. i8 K: o
to get-color
8 r9 Q' v, t) ^7 t2 k6 ?  D" Y- V4 d- }( J9 J- l
set color blue

9 O' i$ @8 W4 z0 J  T8 a* Aend
" Y# ~9 M6 s/ [+ H0 T" m7 ^( Z( \2 ?& D. R" o
to poll-class
' k; [4 d% n6 Tend; j( Z  X  L  R$ [
* W& R5 P. B8 i
to setup-plot1- Y# `% q- g; `* `
) E3 F$ Z/ G; _; [
set-current-plot "Trends-of-Local-reputation"

3 F8 K. L( |! N3 b' I: U' Z2 z# s% P# J- w( h- ^
set-plot-x-range 0 xmax

$ ]8 O' u" R  B5 E- v9 A- }; T" |  \  n  {; n
set-plot-y-range 0.0 ymax
! h- v' ?' y; U& H2 U1 P- E9 Y
end, a7 t" ?7 [7 ~+ i4 Z0 `- [

# D7 |+ [1 ?8 A0 gto setup-plot2
* O8 T/ y3 [' r: q* W: Y3 [2 H* }5 S) k5 d" ^
set-current-plot "Trends-of-global-reputation"

7 O# Z5 O* |3 `2 M+ g! _
+ |: ^6 a" l; W' Cset-plot-x-range 0 xmax

4 c, x8 j2 y6 ?- @1 R  @+ s
2 `- l" P) N. z: G. d1 V2 nset-plot-y-range 0.0 ymax

0 ~6 {% {  J- K# q2 cend, W% ]. ~) f8 i  u" n4 L! q* d, F

# x: x! c, e0 S$ Nto setup-plot3
1 X7 e+ F: m0 S* i  t* |% L3 N
- n) ]" \! i& f3 u$ fset-current-plot "Trends-of-credibility"

, q/ I7 X; e8 U
7 I2 i& d. D. h% U  }6 o! v* \set-plot-x-range 0 xmax

" b! e2 n5 D0 Z# t
. \2 h- J1 V7 Vset-plot-y-range 0.0 ymax
: S% }! ^! X& e# K
end
& L- |( E* }1 O8 M. F# |
* T& T1 N5 R- }+ c: }, Zto do-plots
) u! D! k3 O% F3 j8 L* `set-current-plot "Trends-of-Local-reputation"
. h" F- p2 M* s- e6 Mset-current-plot-pen "Honest service"
. F3 f  c" o4 w0 C  b  Pend0 n0 c+ j& t( }' D6 D2 ~
0 _# Q5 X9 P9 c0 F
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有帐号?注册

x
发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

没想到挺复杂的,我去问问师兄们,不知道你是自己建构的模型还是其它模型的改进,我试了一下好像setup都有问题,别着急啊,呵呵 。
发表于 2008-3-19 11:34:29 | 显示全部楼层

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.
- P' B$ K' E) y" v/ b; A
4 v2 J. S1 s2 ~$ n* O3 i这是我自己编的,估计有不少错误,对netlogo了解不是很深,请多指教,谢谢!
发表于 2008-3-22 16:55:16 | 显示全部楼层

程序公式

我问了一下,只是从程序角度来分析,是跑不起来的。如果参照你建的模型(公式),可能会有帮助,我的邮箱是wjcpcahu@126.com.方便的话,看看能不能进一步探讨。
发表于 2008-5-19 18:02:44 | 显示全部楼层

运行不了

提示custom无值,这是怎么回事?
发表于 2011-4-10 14:42:01 | 显示全部楼层
好高深
发表于 2011-11-7 11:36:13 | 显示全部楼层
为什么大部分的帖子的交流都止步于2008年,从08年到现在好像已经很长时间没有更新过了啊,为什么呢?
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|手机版|SimulWay 道于仿真   

GMT+8, 2026-9-14 05:30 , Processed in 0.023725 second(s), 17 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表