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: 9388|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:9 X7 d9 t, e6 U) n( `# z% Q' d
to do-business
0 `$ U7 D. d& L# p rt random 360. H3 Q3 X8 A7 \+ b
fd 13 R$ G+ h, T9 m: }" E: g  k# _) H
ifelse(other turtles-here != nobody)[1 [3 M! _& }' B& k! G0 I& b2 t
   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.- k  T, ?: K+ m# R( k  }, K# F
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
! W2 O, Z2 {" q, O1 X7 w5 a   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer0 f5 S  ?4 n" \$ T! ^" \
   set [trade-record-one-len] of self length [trade-record-one] of self
. {9 L, l8 \! X$ c" v4 r2 [   set trade-record-current( list (timer) (random money-upper-limit))
/ A: O# ?( o3 W! C$ i/ D! _$ H' ?& p6 W% p
问题的提示如下:
' {0 E$ ?  K2 _- {7 k! Y+ ?; ]
5 R- P6 @' g6 o8 Berror while turtle 50 running OF in procedure DO-BUSINESS
' j6 ^0 \0 Y( Y8 E  called by procedure GO
6 W4 Q0 Z. Y% f8 Y' v2 TOF expected input to be a turtle agentset or turtle but got NOBODY instead.0 V& V4 U5 U4 V3 t7 \- a7 z: H5 \- p
(halted running of go)
# z% b# g4 h! U0 B
: n) I' p+ F6 H) {  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~~
/ ?  h  P* b% J1 F% D7 V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
% J5 s1 y1 Q6 m% a7 Y: Pglobals[+ o  X- {: I7 L
xmax: `; j- V7 S) o: i0 z2 e" V
ymax
+ k4 w9 |/ i9 q) D8 m# lglobal-reputation-list
# _% d5 u( ?) q/ I' o% N( J4 b9 e7 }, H$ P. _
;;
每一个turtle的全局声誉都存在此LIST9 Y- x! Q% K2 D" M$ z" {
credibility-list; t( }7 m8 C3 |# @2 R! h
;;
每一个turtle的评价可信度+ z6 o1 b8 T2 u- a: F/ y) l
honest-service
/ I) m+ l+ c- ?9 \unhonest-service4 [8 j9 Z0 N1 S/ ]/ ^$ W( @
oscillation5 d3 H7 p, P& t0 T. J, K
rand-dynamic
0 u/ a; C% p9 Y2 f( R8 g]
) |8 B$ o2 ]. ~+ `/ [3 m9 r: @+ E+ I: W
turtles-own[
0 h+ x3 A. W  s) btrade-record-all1 a3 f  t2 h4 N  a$ @
;;a list of lists,
trade-record-one组成9 e8 X, ~* X. \; c: k
trade-record-one
+ b  C( X6 v+ ~0 j3 t;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
3 I$ G# n. i8 N- `4 j) q1 u6 c( W# x+ h3 a% d# @9 H$ m( c
;;[
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]]
% N/ _+ ~3 D+ f7 Etrade-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]% f1 d  n* t0 G. e" B' L/ B
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list5 {$ k2 z% p3 t  c# u. S
neighbor-total+ v: y+ V+ Z# T& C' N% i
;;
记录该turtle的邻居节点的数目! T: w0 F5 C: p# u  y
trade-time, b  i1 H5 \$ `3 J! y
;;
当前发生交易的turtle的交易时间, v! O& q. ?/ J1 G
appraise-give" S& S/ J: r2 p- _) d3 u" y
;;
当前发生交易时给出的评价
( [+ D* X3 ^4 X. Z8 _9 d; a* [$ Zappraise-receive
, @8 {7 m" N9 }9 j" ?0 B3 F;;
当前发生交易时收到的评价
4 I0 ~0 d+ M* |, o% G6 n( @1 Iappraise-time+ y8 o9 a/ p) v: b; E
;;
当前发生交易时的评价时间
) c8 _8 P( }) plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉/ W2 R- E2 l: {+ U! s
trade-times-total7 Q- _- \* Q' S* [5 U: l, X
;;
与当前turtle的交易总次数: D7 Z/ c- ]/ X
trade-money-total4 k0 @" j, {* D3 w; ~" z' u- h
;;
与当前turtle的交易总金额
* D  S. g) u2 l1 e+ {5 xlocal-reputation
. G" R" q& s1 o1 ]" z3 J6 Lglobal-reputation9 X+ q- H3 {( P% k1 g. l& e7 |
credibility( p$ o; k& j+ P
;;
评价可信度,每次交易后都需要更新- C3 T2 t  c1 I
credibility-all4 J2 P; w! i6 O. b8 p8 N6 h5 ?3 t
;;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' l" U- C  ?1 N

# r5 U2 A0 z. S8 ~. p;;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
( K7 c. {) }; Ncredibility-one% w6 \7 ?, D+ }2 ~# Q0 v
;;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
7 d7 D% `9 v5 aglobal-proportion
  o3 _5 u# a' H' O* y. V- Ncustomer# o, g1 S* n2 F/ R: G
customer-no# s6 Q2 u$ D' f8 A4 m) G
trust-ok
8 U) X! Z" d. c" etrade-record-one-len;;trade-record-one的长度
& z6 r* `+ @0 t" M6 r0 O# p! s5 m+ B]
* `% I% c2 V& A0 t# k# R& j0 v8 l, q. [6 Z; x; G! {/ f) v: V
;;setup procedure
3 w& r% N& Z0 r# Z' T$ T) T! \0 Y7 ^: l
to setup
4 n$ q- q) ]' K
+ \2 ]- `+ U6 z( Q! |! Zca

( N' ]0 F/ x8 q- T( k' e* T% _" m' d. @) i* `9 A7 w: }( z6 Y" S4 y
initialize-settings

( k& S  l# u1 F5 I- J! Y' d2 M2 p4 _
crt people [setup-turtles]

) ~# p# Z& |, v5 m; Q0 W" F- g" S, H- v. E
reset-timer
* q6 Q8 }! M% Z8 a( \  Y6 w6 t
& S) i$ ?* Q, ^2 e9 q" r$ [
poll-class

  W- K2 A1 ]5 Z4 `( i! z, Q9 c# ^
  t% S2 Z' \9 a: E6 w9 [setup-plots

3 ~5 Y. g2 E  `
, ^7 H+ K( c+ Odo-plots

. e" O5 e' D+ kend( Z$ ]/ [. |# J* J) s

' I: {- \% v/ S( y6 O. wto initialize-settings9 L$ c, Q8 j' x' K6 v% h3 S' m, ^

3 a2 V- E5 F: T: p( u/ F: Hset global-reputation-list []
0 v6 h( L$ t; @0 ~
: S/ F) c+ T  D* U# M
set credibility-list n-values people [0.5]
/ T( O0 L" g3 T% w% _) y" f
+ o% J/ `3 K9 c# H; n& V5 v6 C
set honest-service 0
$ i& d( Y0 P( }, f, v

% H1 G$ S4 e8 D0 S% @- q! F1 Fset unhonest-service 0

: Y4 I2 T8 d3 r: B/ V* M. j- {5 l  s5 a3 t( c$ }" n
set oscillation 0

0 i3 Y' F; A$ U  z( S& A4 g5 o' c
! x" w+ l/ B" k5 G! h$ pset rand-dynamic 0

4 n4 [" ^( M  @' {" a# M3 Jend4 N$ Q! n3 x2 I0 ]7 K  Q8 d

) j# x# {3 P8 J% Z4 s$ j, sto setup-turtles
  n/ X. F1 Z5 b5 l7 u) j3 }& p' N; }set shape "person"; Z: @% P0 u# f' u+ h
setxy random-xcor random-ycor
8 N4 q& e( z+ \4 F6 g* Vset trade-record-one []7 B' R7 n3 `: H. l
' ?1 W8 ?- [, {1 [& S  {
set trade-record-all n-values people [(list (? + 1) 0 0)] , e: ?+ t6 d# d* N+ [' _* p' |

/ y" z9 d: v9 }. N. ]8 s" i" mset trade-record-current []
1 ]& }4 q9 x( n, I) Oset credibility-receive []
; m5 `0 E) J+ B& k4 {, h" kset local-reputation 0.5) a  Z6 m* ?+ g( u7 S  O  `" u# h
set neighbor-total 0
2 X  g1 ?$ t1 l6 ?set trade-times-total 0
' i/ E3 m! o/ ]8 S2 Z  `set trade-money-total 0' N% U* H/ ]1 N. z. Z" K* ?0 i
set customer nobody# z% K4 F# z3 v9 }
set credibility-all n-values people [creat-credibility]: D, y0 Z* w9 [# s9 ]
set credibility n-values people [-1]- t- K' |# d  k
get-color" y$ p4 c# N6 F8 V# M
- ~) U& B# a$ K" x/ S
end# M3 v! d9 M& r
3 J) P4 T8 u0 M7 |) v7 [
to-report creat-credibility2 r7 G4 J; i: P5 X% r
report n-values people [0.5]
  v# ?4 u$ x8 j5 m' c0 o& oend
! }! O' _) b  T. |/ G/ P2 b
! w) u8 |* Z( s" ]5 t9 y9 Dto setup-plots
% q+ z7 u* i9 k1 C* V1 {5 V
( g( z) R  L( S. V. L$ xset xmax 30

0 ~' j, }6 Z8 I$ }/ G# k# W
3 h. \& }8 w! ]2 O- I9 wset ymax 1.0
- U8 @8 w% n9 ~" _% w2 J
* _5 q4 S+ p: ~) I
clear-all-plots

7 R. f/ {+ Z3 d, }6 Y0 K4 ]% V
8 n! M5 v8 Y8 g2 i: X& A) Vsetup-plot1

: ~! n( N% Y9 d2 R9 m5 j5 A$ J& R2 o+ L
setup-plot2

: ~% s0 `, ]3 y; I0 N3 f7 M9 P" u' ]0 c9 b! i' g4 c5 P# x# a! E. z
setup-plot3
# v8 ?3 V5 [$ {( h
end
% w3 a3 Q% p5 f9 \7 R# c8 t' Y3 }3 P
5 S$ S7 V0 S8 ~4 s;;run time procedures
. k/ B4 b! k- o, j' ?5 f
# u5 G/ r9 f( i' I3 K0 ]  k6 pto go/ i) D: o( O) X' n: P- f5 s) {
; `$ N. K1 b3 I& |6 M" H: J
ask turtles [do-business]
6 }$ l8 l0 r9 S- T
end
) q% Q0 f6 J% t7 A$ }2 {. k7 \& g6 d, [5 F
to do-business ; a+ W5 u' k% [, y

; h6 ~: s) s/ m+ ^) D+ p
* p1 C1 F. h2 D1 S. N# w! urt random 360
6 A: n& X& X) O; E$ `7 G6 ?; V
/ W# _  X& i4 M: ^
fd 1

- `; V  A: [6 l  @5 y7 |
8 \0 f' n& D  l3 `9 s; Cifelse(other turtles-here != nobody)[
  x8 }# t/ T+ t
% R  e7 v0 T2 k4 p( Q) _
set customer one-of other turtles-here
$ u3 B0 O. [% W- `! M6 V
/ F; N/ Z$ q5 A1 y  I
;; set [customer] of customer myself
* f+ a( F( A$ x" g) {
; _; i) _  b7 ]* }$ D2 r
set [trade-record-one] of self item (([who] of customer) - 1)
1 g' o# r* N# z+ A, Z' o0 l8 [! X[trade-record-all]of self' e1 f" w+ T( T/ ^
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
8 v. O0 L3 c) y$ ^: r

7 X. G4 z& w. K/ Z7 Uset [trade-record-one] of customer item (([who] of self) - 1)
3 C, x2 [* n3 R7 [[trade-record-all]of customer
" N) i$ i/ F5 v' i5 K  K2 r
5 k/ q5 C3 Z3 b
set [trade-record-one-len] of self length [trade-record-one] of self
9 w0 s' X. }/ g0 _

6 Z) [1 N8 C5 x( y9 sset trade-record-current( list (timer) (random money-upper-limit))

! K8 a* i  _" L+ @' W( H. V  U6 b6 {. G, P9 }
ask self [do-trust]
7 Y" A$ A6 a) l5 r' z;;
先求ij的信任度
2 R. G4 O* F4 X& W& ~# V, a8 J/ j. I0 o) W# D
if ([trust-ok] of self)
3 O' O) s- K3 x;;
根据ij的信任度来决定是否与j进行交易[
1 I- H1 D. v* d+ D- e$ S* K' cask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
/ F) {" G5 r- N' m3 L
1 t/ y- W! ]0 p& I[

6 ?6 f1 g0 z5 W8 L/ o) ~
" A5 |7 d8 L" V" `: }: a+ {3 m; xdo-trade

2 ^% f  T* t$ }) y7 h; v9 c
' E4 i1 d6 x$ @update-credibility-ijl

! u' E! c5 {3 s8 M; D8 u) \& L2 T
update-credibility-list
5 m/ b4 @% p6 {/ O( c( g, n

! Y7 w5 e+ e: e7 Y5 U# C
; x3 d$ _! N( A% R% B- a& cupdate-global-reputation-list

6 x" C6 Q2 [% q& F4 {
5 L/ m! P( M  ppoll-class
! v5 ]; N; Z8 n2 ~' B9 o: C
; U: R. }: }1 j& b# P
get-color

( |& n" e5 P: U" G3 ?* D( \, F  L* J/ ]6 g; B7 f( k0 }, F  ]
]]# Z6 ^0 v2 T& Q. c; C: y& R4 y8 v

* a. @$ f" x5 ^! j; D# x7 v;;
如果所得的信任度满足条件,则进行交易
, A# F& _7 H  s2 W
% b" ~1 E# Y4 {) e, p' b6 K+ i4 C[
. `8 u4 a5 u% `
+ K4 w! O6 Z8 x1 V$ z
rt random 360

( j! r; p& G8 S7 P" }4 _: E: y) D4 [+ {$ U) I' }
fd 1

7 y$ T' t' c# S" I2 X$ b! R; Z' k, g% {1 E2 Z
]

+ ~* P& e1 w7 N) S* J# ~! k+ o2 _1 e
end

5 i# t" I' Z; g
: C  C. X5 S) h0 ~: Ito do-trust
- R% S) J& \: g, Z* K) c" `" j3 Oset trust-ok False3 O4 g7 u5 ~7 {  s8 O

3 K, S+ V. L& E
% a0 g+ D  [$ L  a2 w; n
let max-trade-times 0
' r. i2 J6 h: l& L& g* p0 D; }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 P8 ?7 m' o. R
let max-trade-money 08 w$ l, R* e- @& P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ [7 f8 V1 m, E. J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); y( O. l: H9 I# d

4 N+ t! Y% ]5 |2 F; Q' k
: p* P& {% |4 K9 w0 G
get-global-proportion
/ ~' v7 H- L+ B: Ilet trust-value
; q3 [, _4 d. X' S5 f! blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

# m6 g6 e$ K) T. y3 n( fif(trust-value > trade-trust-value), T3 R- K/ m- B5 Z; g/ I; A7 w6 m
[set trust-ok true]( w3 }/ ~$ x- C
end
# q0 i# T. w8 F# O0 L8 o& Q3 f, z8 e, q" z% ?; w) _1 e
to get-global-proportion% @7 [9 u+ k$ t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' H7 Z5 X, E) J, b8 \+ C
[set global-proportion 0]; `8 ]/ z2 [0 v2 ]) ]
[let i 0( Y# ]4 e/ V' n8 ]- j3 a0 h6 U
let sum-money 0# e/ |2 }. |* t2 W: z
while[ i < people], L4 z7 S/ @5 _; N8 U9 F% ]
[
+ ^& V1 J" D3 t) K; d* R0 t( [if( length (item i) D0 I, G9 F  N, e/ r! h: ^
[trade-record-all] of customer) > 3 )

5 F! a7 }5 D5 \( i: m& u[! b4 v& ^  o" C( @& X' r# _
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ G9 s, ]) _: ^$ Q6 |2 l  R]& C9 Z/ ]+ ~, m: j
]
0 }6 L  ^6 c( A- \: plet j 0
' I6 d, \; B3 A; o6 {. Hlet note 0( p8 h* ]" Y4 a4 E' R
while[ j < people]9 a  x) Y9 _! a$ i
[
/ _0 Y, s3 L* Y. q. Uif( length (item i, w' |3 x. Z0 x( z7 x3 `0 g8 c
[trade-record-all] of customer) > 3 )

7 u0 [' m( R7 @; r7 ^. q[
1 j. ~( m8 D5 `, E8 G( Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* F) l9 ^: @. }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
/ I8 q0 Q* S. N" b+ u9 w' R7 ^) B[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" w+ P5 N* r' o
]" m# O$ Y/ z# b) W7 s& f
]0 @* r8 E# ^9 `. _- z9 Y( v
set global-proportion note
4 {4 s+ \: x: ?; d" l  l]
' i- k" [; u9 u( x8 \; Fend1 W" \$ _# k# F; M$ B! g" S! a5 u

4 f' w0 f- L  ]5 }  A! A6 \6 ~to do-trade
  P8 [8 m* s! }9 k7 B2 O& n& Q;;
这个过程实际上是给双方作出评价的过程
8 Q6 W( h* I! }/ a+ F2 d+ zset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
1 \* i6 c8 P/ W% e, l3 J, v" `; Vset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
; A+ W* E8 j# \$ v1 d6 bset trade-record-current lput(timer) trade-record-current
  m& G4 Q6 ^6 R: K;;
评价时间
0 ~2 S, K' |/ x: \; _) Rask myself [; C! Q3 q! B" W
update-local-reputation) ~' J" K9 `) \2 L& t& A
set trade-record-current lput([local-reputation] of myself) trade-record-current* F& D5 }1 ~) E/ f2 C+ C9 J3 c4 e
]$ c- k1 A6 g+ K, F5 o1 z5 j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ d, q! {) l, B8 s9 p
;;
将此次交易的记录加入到trade-record-one
0 H4 @! R& C, o9 Q4 R* B% {; \  }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! N: c: u" ]+ s9 p8 ~+ J1 P- q
let note (item 2 trade-record-current )! x2 i5 T! z( H
set trade-record-current
1 ]3 b+ Y3 I0 t- P, }  V5 [(replace-item 2 trade-record-current (item 3 trade-record-current))

* U7 U' G+ z( X4 P' d5 y9 j3 T0 X8 q) G  Sset trade-record-current
% u* |* J$ H  V3 Q(replace-item 3 trade-record-current note)
% |) k* F* j9 h8 A* S% `1 F5 U4 f# c( y  m2 P" Q4 b3 `+ ?
3 P7 J6 }( @" J
ask customer [
4 h+ S1 j( \, I4 B8 t0 q6 `0 Wupdate-local-reputation  P4 f+ d% ?1 }8 {
set trade-record-current
% h- V8 d8 i6 n! c5 L1 ?(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! s; N' N# \% y& n% u6 a
]+ n% U4 ]1 W$ {' l
/ a1 ?* R) R* y8 {$ p
' V9 T7 J, S0 c. l. ]# Z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( @9 b0 K+ y5 Q. d0 R; C) \
2 q  M" _( Z$ \, O
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); ^- J7 x3 U0 i" `" u, G
;;
将此次交易的记录加入到customertrade-record-all
7 [/ u  u2 x7 X) |! _" M+ Cend& q2 z# e2 @% k& p

! V0 O: I4 ?3 i( mto update-local-reputation1 t& n1 ^9 W: [
set [trade-record-one-len] of myself length [trade-record-one] of myself
9 Q# s) o) R4 _& z+ ?" l( @9 f) m6 X6 J9 c; ]( j

' C( l' p% I* ];;if [trade-record-one-len] of myself > 3

7 L  \4 Z& U0 Q& Qupdate-neighbor-total0 b7 J0 c! W- y6 `# N3 K. s* F* {
;;
更新邻居节点的数目,在此进行& q( ~+ f: e( I, G6 a) `  d
let i 3/ t( N0 d% y7 k2 J0 ^& }5 f! `# t
let sum-time 0* `7 A9 d  {' j$ P
while[i < [trade-record-one-len] of myself]" G: a: }! p  G6 B, K4 Y2 A
[* D( j7 `3 |  s% m$ `# Z. }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. G; I. |  W& d: ^3 E4 l* Fset i
& A: u% T: j, V" W( H+ a  Y+ }" P$ P( i + 1)
/ J3 f7 `7 O8 ?( c  i! J* H( z
]
5 n: d% T1 e$ F: R, {" @let j 3: d+ b2 n/ W4 ^1 o% n
let sum-money 0: [6 E, F* K& R
while[j < [trade-record-one-len] of myself]2 ^) C& ~2 z# k6 [) `) x8 ^
[0 i4 X5 K8 W' C. D7 P
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)* Z) |$ Y& b  u- f# j
set j( y7 b2 |) z+ `# u# m7 V
( j + 1)

) O) s0 ]8 e5 x- Y& W! E# l$ s  l]& ?5 m6 K( n: K1 e. e3 K
let k 3, A" P, R4 t) Y( r$ v5 W# N
let power 0
( y5 _2 _( `2 Z. s4 r. _let local 0$ g7 ]$ [& ^# O4 r% d* v; m7 O3 C
while [k <[trade-record-one-len] of myself]
  b" ]4 q, s; @- N" F: f[
: Z9 g% F' C. B8 rset 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)
* w! S, n+ _2 ]9 f8 r" a3 qset k (k + 1)
" ^- C1 K9 K6 ]/ h& v]  {4 x/ r( @! |2 ?
set [local-reputation] of myself (local)1 Y, i" |* H8 F2 C* g; w
end
, c  {; }: u& L. y9 c3 X8 B, a4 N: [5 n+ g" ^9 Z( Y) O
to update-neighbor-total
  b+ O3 a, Q% ~; b+ y
0 v( q2 E7 g# f# Aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! @$ g: U1 d) M8 m
. _" s( I% m( J

$ @. g) p% |% O. Y$ A# @end" V& s' W( e8 c8 m* c0 J
' |2 d+ _2 D8 h% T+ Q- v1 }
to update-credibility-ijl
/ N6 D' k( e/ W& T: ]  L7 W" u
" {  k% p8 b, I;;
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。0 T) X" ^+ C3 ~. i
let l 0
) d% S1 l" a9 `% \1 mwhile[ l < people ], Q8 U7 D8 l, r- T( f
;;
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) q; g( N' @0 E* I( G/ }2 |4 b5 n2 _
[8 Q6 B- |5 T0 t% p* Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" k. Y( I4 K* `  I: O. J: c: sif (trade-record-one-j-l-len > 3)7 V! C1 p0 `( ~) ^
[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) O& G7 }8 X2 C/ `+ ]5 o) L
let i 3/ J- v. S  _7 K5 M. h
let sum-time 0
7 h# ?6 x3 ^' W0 k( Dwhile[i < trade-record-one-len]5 ?5 v" r3 v4 S) i' Z& g: i
[% m. G) T3 D8 u; U! L
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 [* R6 j+ e0 ]9 V" `
set i0 ^( N" V5 d1 J4 g7 _
( i + 1)
1 ]2 Y# s3 A+ O9 T
]8 Z) W: M" [/ D5 m; X' p2 G/ x. K
let credibility-i-j-l 0
, I1 [& Z- [% {- k7 A  K0 R;;i
评价(jjl的评价), F! K$ f  X8 F2 P9 U
let j 3
  _3 y; U7 q0 l  D2 @let k 4
3 L; o- z: k* v% ]4 A8 S. H4 Jwhile[j < trade-record-one-len]3 I3 U/ E. h* A) d9 a( ]' B6 a
[; c8 n' z9 q1 [- K5 j: m! m7 p! i
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
( X6 }: B4 m. b5 O! q) |# gset 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)/ e, m* L0 S; M+ i& a0 c  X  Z; o( d1 ~
set j8 k" [& ?6 @; _( L! \' D
( j + 1)
9 c+ g2 B$ h9 K# Q
]
; `- `( c) j: jset [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 ))& s" H+ ~6 C' g0 q; Q1 S
) Y. Q: ~2 p2 p9 J  o9 {

$ {. h- X: a* z3 W3 klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: I' O9 X/ W; v2 h" X. G  J;;
及时更新il的评价质量的评价6 `: e2 T' k2 B6 o. k. A
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 q( F# Z* {" F4 L+ E/ ?! rset l (l + 1)
0 ?& ?3 d+ j2 w) e7 E]* I2 e9 W' s, _9 V2 s0 X; c
end
. V& R0 c' \# L2 p  R: ~. a7 a, a" ~% _" E
to update-credibility-list
  \( r$ M" {' j- }! V+ ], slet i 0! |0 W& J# c) Q3 V" v5 w" X" q6 `
while[i < people]- e# h1 z: z5 A$ O
[& O- Z# |! g, z7 g3 G1 Q
let j 0
1 N& V9 s9 T$ ]. A& l' b: l" ilet note 0
# d/ N; V$ W, z; x  B$ |" ~let k 0
! n- Y7 _+ e/ z. N$ \9 ?) n2 k;;
计作出过评价的邻居节点的数目# R5 ^* I3 x+ S+ L! W/ u
while[j < people]# [# F2 h& ^7 U7 T8 L( f9 C
[
9 T* G6 ]1 S: h  \if (item j( [credibility] of turtle (i + 1)) != -1)0 L% M0 K9 M4 e; \3 R
;;
判断是否给本turtle的评价质量做出过评价的节点
) _; H$ W% o6 W[set note (note + item j ([credibility]of turtle (i + 1)))
9 L$ U5 d' q( c" I- h;;*(exp (-(people - 2)))/(people - 2))]

0 H2 ]. E$ t+ yset k (k + 1)+ w  C& y! z- g# a6 Z  d9 ?) ?4 w
]
: o! \( V; x3 M5 I5 f& @set j (j + 1)
8 ~' \3 o# }$ @, Z& l]
: _. A) I% p  ~; ?set note (note *(exp (- (1 / k)))/ k)
% s2 y* {; L/ _set credibility-list (replace-item i credibility-list note)
9 E4 E, J5 X; B- i. Hset i (i + 1)6 K0 q/ k' ]1 O  Q- ]" f+ n
]8 d* W% K1 K  c- N
end3 [2 g# u2 T1 I' Q2 H- P; N

; W6 _) K! Q& b0 @* W! b7 V! u6 Hto update-global-reputation-list& H' h* F: d  n3 B( {, k* x" v
let j 0; `; Z$ Z4 X7 M% F
while[j < people]
: [+ A0 y8 s4 Z0 N. Y[
# \- J0 o) [: ]' o/ I- k5 C7 C- ~let new 0, }" ~6 M" F- ~( U  P6 {! k
;;
暂存新的一个全局声誉& b6 P( a- }7 u  S) z
let i 0
. d/ p" E' h+ t  Y; r4 Wlet sum-money 01 h6 {/ D9 J/ n+ y# Q/ i% ]! y
let credibility-money 03 Z( G7 _$ B6 ]1 x0 a  D: _
while [i < people]2 e% {  y& K- p2 }5 m! `
[- W  ~- \+ `7 I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# H8 D; B4 p1 Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& {: f; |$ m7 r
set i (i + 1)& z, H6 `& {( T
]* t# H, h* S0 m0 J! s9 F
let k 08 C2 l$ V# ?6 y; D0 g' s
let new1 0
) _3 A$ B, t( Y1 k2 u7 b0 y; H5 U  cwhile [k < people]8 S* U9 P& L: m; O
[
3 S8 n. E- L/ _- ?set 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)
" @! e! v1 T: n3 u" Oset k (k + 1)% c4 G  v$ x- D  ?
]
/ q% X6 I$ N  j/ u, G9 p8 sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : M; q& f0 W+ v! q0 U
set global-reputation-list (replace-item j global-reputation-list new)6 ^9 [& q  C; b/ u% }3 I5 Z, y
set j (j + 1)
, k) e# m& A* C4 D+ F4 C]& Y: l5 \6 i7 }' ?' J( x
end+ v2 E. F6 \# |0 s8 J- f2 H, h

5 G% Q9 y5 r1 `2 n% u* b
3 r/ {; t+ [5 D! b# Q0 I8 u( J2 k5 T6 Q1 _1 z1 J2 }
to get-color
4 n' v8 _5 G9 p" i7 A0 Z/ y5 M2 y, n7 e1 H5 ?
set color blue
5 g  Y( L" m0 i. |' F% d
end' |5 E& x! F0 y& N5 R. y/ y1 F) Q

* {4 j7 A0 a. ~) }to poll-class4 D( S4 J+ }  q% C: h0 d5 E
end
$ X* y& O3 l; C  ~) W) M) I3 {9 D/ h' U" R& D# y
to setup-plot1
- @5 {/ ~' V+ S3 l- p# |9 m9 ]/ x# \2 S0 _7 _
set-current-plot "Trends-of-Local-reputation"
; T$ a1 S" c+ C
  y1 t- I  z- e. q" @# E. o7 D
set-plot-x-range 0 xmax

: D# M. ?, e9 H$ o
1 E- M1 k  Z, _/ N' rset-plot-y-range 0.0 ymax

) N# q% U3 i+ zend% F+ e. k8 E" x& K+ W2 x

7 W0 q1 a* A, X' k  yto setup-plot2
/ m) ]' `+ Y  ~1 u. t. ^4 @7 c% @: {6 y, ]( q6 w$ I9 _' J: p
set-current-plot "Trends-of-global-reputation"

3 X5 @' Y" A, g- d; Z* j) k9 v  C5 m
set-plot-x-range 0 xmax

5 H" [8 S  T- x1 l; l# z! K& g6 R; Y3 e, r2 X  N% [* s
set-plot-y-range 0.0 ymax

* x9 Q7 S8 E4 ~' M3 }% ^( Uend
/ p6 @* r) ?# b
9 z3 S) x; P* r! E! cto setup-plot39 ^; x6 H) P/ {& l- C2 L7 q/ b5 p

; Q6 G1 _7 ]( T! B$ r, X: A- \! T) Fset-current-plot "Trends-of-credibility"

7 q7 w  _& R5 r' `' G# m  v" w8 p. `7 x8 \! ?  t  _
set-plot-x-range 0 xmax
) O2 Z! u7 e: A, K* V8 M) o# L$ S9 ]# m
& N! b3 }; q3 _8 g
set-plot-y-range 0.0 ymax

# r  ?6 d' |; p3 lend
  g$ Y2 C' S; \9 M. E
5 H9 C! o- {7 m- }) t/ r7 K4 |to do-plots0 X/ B% }' p: S! ~
set-current-plot "Trends-of-Local-reputation"3 ^3 p" m# Z  u# Y, i! W8 f
set-current-plot-pen "Honest service"
! l  r* Z1 j% X  v  xend
( `) g" t. F( m) C+ G
, _' W; o% y0 J[ 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.
) d  E% |$ S& \! M! S+ w6 }- w  I. P6 v+ c. G$ d/ q/ d) F0 c- b
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, 2025-7-3 05:28 , Processed in 0.017723 second(s), 18 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表