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: 11438|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:
+ f2 W/ Q" V2 x. J4 X: u2 J+ c1 K- kto do-business
. U6 ?3 o5 K0 i# ] rt random 360
% t/ k, _, A9 P1 p1 u( y fd 1" W# M8 I3 c# i5 d, f) w. p: g
ifelse(other turtles-here != nobody)[' L' K3 c7 J& ^* F. C+ X# x
   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.. @# r2 S" b, ?5 a5 I. c8 u* ?
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    + Q$ z2 I0 R9 X+ r4 X% W
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer% `& B) _$ ~0 |2 W8 P9 y
   set [trade-record-one-len] of self length [trade-record-one] of self
; l6 t/ g7 d( L' `5 O+ a   set trade-record-current( list (timer) (random money-upper-limit))' f4 Q" e& e, Z
; P% J% X0 h/ d" c3 a, ^- b7 h
问题的提示如下:5 B& m+ \, g2 c4 v

; {$ U1 Q: {7 f- eerror while turtle 50 running OF in procedure DO-BUSINESS; e/ V7 ~5 v9 K% c
  called by procedure GO3 o. q+ p. D1 B, h4 {: d
OF expected input to be a turtle agentset or turtle but got NOBODY instead.! [6 i1 U& s" J3 z# q% y- ~
(halted running of go)
, L+ N* Q/ p; D! N( I+ H, U4 V4 M+ z, I3 P% u  ~; u# \
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~~
6 ]* y( 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
/ g) b- ~" }" a+ S) xglobals[
2 e* D" f, c* L( |) Y) }( G6 ?% Dxmax. y! h: V. b/ ]8 A6 Z3 y2 q
ymax
/ F5 ]8 t& e+ Dglobal-reputation-list0 U1 S. ]" F" s9 r; `# k1 E3 ^
9 Q, I9 N- U# m( E6 h
;;
每一个turtle的全局声誉都存在此LIST( O1 l( S6 C2 f+ ^8 @
credibility-list
3 x7 a! R% k$ [8 ]% `;;
每一个turtle的评价可信度
( X7 C" I7 e0 O& m% I- j" |honest-service3 m1 `) f/ F1 ^( ^" S
unhonest-service
, E1 |3 H/ x1 s/ ]* h3 O8 Foscillation
9 h5 @. A; I! R5 Q# O# V* xrand-dynamic: q- d6 i' k5 Q1 `& w
]
8 h* V* s8 k# X6 j$ B2 O% s6 b/ l6 c; u
turtles-own[4 M# }" q* c7 ^# V9 R1 N2 Q
trade-record-all5 I, Q0 c4 S  D& _8 M
;;a list of lists,
trade-record-one组成
& F7 W7 o0 u0 ^$ wtrade-record-one
, L( T2 }1 N* H( J( k8 h3 \6 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; K% w; g( k$ x9 p  L# e# w/ J% g0 F* U
+ s  s+ N9 z+ n$ B  T
;;[
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]]
4 N1 B, B% {6 Q& {4 }0 R2 Htrade-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]
# z: n/ A% i2 A9 x# {6 ^1 M5 ?: ucredibility-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
. {4 c- t% s& u0 Uneighbor-total, z  Q, S  t( g
;;
记录该turtle的邻居节点的数目
2 \7 C5 v" o% M* p* j* a8 _trade-time' @0 X3 T2 ]$ _2 }
;;
当前发生交易的turtle的交易时间7 T. T6 i. }$ u: X) b2 {
appraise-give( i. ?- U8 \" E# m6 Y& S
;;
当前发生交易时给出的评价
; N6 P) E3 O* B2 ]  i( I6 J* }. Vappraise-receive
$ {/ A6 S9 L1 I" X% o;;
当前发生交易时收到的评价7 Z& b- y- v2 E2 P- u+ D" _6 }4 |
appraise-time
* C9 K" P' L& F# N! W( {# w;;
当前发生交易时的评价时间
/ l) U2 Q) n  Ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉% `6 P/ \- E3 g# k2 i
trade-times-total
3 ], O! s- K! w' A# ?$ a* P5 _;;
与当前turtle的交易总次数
$ L" z! W7 x' Qtrade-money-total
  w2 I+ p; ?$ ~5 t;;
与当前turtle的交易总金额
3 k0 a: O* w6 M6 r# k$ ?$ ^) Ulocal-reputation9 D, ~, N0 C% T" T( R
global-reputation! R6 y. \) `  Z% H
credibility* r( F  f- b+ x2 j9 g7 z- p' h% W
;;
评价可信度,每次交易后都需要更新
7 D1 p2 H+ U8 z% D: @credibility-all7 G( \2 Y5 I" |. d
;;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
4 Z+ [5 m# M5 a5 n7 D- o0 l  h1 s+ [  X8 f# @. ?
;;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
5 y0 a; _5 S. A0 O* U: V( ]8 Vcredibility-one
; E8 P( e* `' @5 j;;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( k% v5 m- f% o2 W
global-proportion
$ C, ~! }* Q4 J9 @6 [( n5 bcustomer
  I9 z) G+ E# Ccustomer-no2 }7 y2 U- T- {1 ~
trust-ok
# W% @: u% |& W; P+ z3 utrade-record-one-len;;trade-record-one的长度4 F# O1 L6 l1 w8 f+ X7 v
]
, X% U+ z3 s$ F* r( V+ G$ }3 Y* s
;;setup procedure9 s9 M2 ^* ^6 e
  z1 E, C; t  k
to setup
- `9 Y4 F0 K/ U5 ?
8 B! y! m. T6 D4 [5 D; Rca

0 a' E4 j, T0 U: ~- {. L8 g& n- M2 D6 t9 L* m% F9 |
initialize-settings
" X3 w+ E/ }1 U* Q. [

; S( A" v* g3 \6 Y/ w2 P5 ~2 dcrt people [setup-turtles]

( S  ?; n1 W1 l% I
0 T2 S. r6 V, n2 H9 l* O' hreset-timer
1 i; g+ r1 ~2 A& I( G/ `

0 t* `3 P' i2 t' |2 g$ f# mpoll-class
1 R2 z! |4 u. M$ Y  |9 W0 q5 ~- h5 H
! ]2 M2 l% i+ H/ Q2 |9 p+ I. x
setup-plots

+ R5 c( C0 ]* `* V: O
3 H( ?* v5 Z$ Z$ _! w8 Z- ?do-plots

. x4 V/ U1 R8 m5 {8 s3 Xend
' o0 ~* V  `& [2 P
, E7 l" y# z0 eto initialize-settings
0 @- Q/ k4 a1 P& Q; D+ R4 H# H2 z" P- ]! n4 b2 r; X" n2 s4 i
set global-reputation-list []

% U8 G1 J2 \, v$ J) K* v5 N: Z
+ n3 w6 k# U( K8 K4 Eset credibility-list n-values people [0.5]
8 D4 y  q2 H" _

+ k+ x$ D1 g( g- ^set honest-service 0
2 ]8 U/ F. }4 R  N) K1 H$ y5 ^
( @+ P5 t! X' W% A
set unhonest-service 0

! l' J( X/ ?  I) V4 B. n: V# S, @7 E& D& g; E; P
set oscillation 0
( O* B+ X8 u; t
8 x$ d8 y5 r$ B. p: Y$ p
set rand-dynamic 0
$ ^8 V) H' V  j: a3 c5 _
end
: l9 `: w/ N- }! w" [; H7 F+ e) D$ n
4 j: P  z! F: ?! a0 P1 t5 [. wto setup-turtles
) y) ?" M+ t1 o7 t* A1 H. F2 Sset shape "person"
; j5 n! v$ T  n: }+ {) Lsetxy random-xcor random-ycor0 i3 U5 Z! I: H$ G4 D& w
set trade-record-one []
& M+ w7 N4 f9 _3 E2 x
7 Q# C! x# b1 [# g8 m
set trade-record-all n-values people [(list (? + 1) 0 0)] ) s6 n3 _. a  ~, I6 N# \2 H

/ v- k  e/ t" O! ~  yset trade-record-current []: J" v$ {: g9 P5 V4 Q
set credibility-receive []
% T! U. d& k( W* ]6 {set local-reputation 0.5
5 ]) P. g% p# iset neighbor-total 0: P0 r1 T$ Y! P. H# p
set trade-times-total 0) ~# B+ e' b; g. ]" ^  f
set trade-money-total 0
% r: b: `, l+ Hset customer nobody
  g8 q) c$ y; u- c. Z, lset credibility-all n-values people [creat-credibility]
0 k9 [: ~/ @+ w. |set credibility n-values people [-1]' E, }- [9 ^/ [3 E& \( n/ i
get-color
9 m, S% \* o8 h; `, [/ ^' u

5 c' a8 s9 K$ k' m4 i: z  cend* D; N: B/ z2 d$ n/ _3 u

- [8 a  j9 k, \3 S$ vto-report creat-credibility
4 ^* D4 r8 L( \4 d1 g$ ?! f3 r- Zreport n-values people [0.5]
* O) h' I3 X( q% t( b2 mend, J* D( y, c+ G
$ i* I+ D) {) h6 k
to setup-plots7 h; |/ D, Y* M$ W3 f
* J; z+ q+ s3 Q. z1 S2 W  ]
set xmax 30
4 Z! u8 F. Y$ r8 `1 J( p( t) e
# l$ ^. B) {- b( T6 d$ i2 F% ?- j  U
set ymax 1.0
8 e% b: p$ ]1 a" T9 L$ ~0 j

4 i7 z, S* L1 H0 O$ _clear-all-plots

, ]. G' P/ @- q) p8 Y& N6 y3 W; C+ t, N6 l  C
setup-plot1
4 c, _/ ?8 k: ]6 P0 X, F- s

- C4 E- L: K+ M+ ]% e9 rsetup-plot2
7 n4 k6 D& L( ^

4 \8 j. n# f& z4 k4 E  Esetup-plot3
- C* h. c3 ~# _  Z3 c- }
end$ I* ?7 K8 f1 ^0 o$ ^2 o
5 x+ a6 n2 z1 s+ x; x
;;run time procedures  V; F) S" i# f! s
1 V8 y! K2 p: m: P5 H8 ^2 x! `3 }) _9 U4 K
to go
: D" ~& S: B0 i% a
1 m, t3 S( C# C2 K- Pask turtles [do-business]
- |/ y4 g, C8 J( n' X: ]3 {
end
5 J3 p# H3 l1 r8 e1 [
' V' u' R$ o6 Y1 r2 P# R' m: o# m- t- mto do-business
  U0 y5 G# A. `$ v( Q: x4 W
$ k! i" p% s9 A) \! E
0 }: P3 k0 {! F$ X
rt random 360
  \2 \0 q* N( O, f5 H

+ m+ {+ @5 @- j% Q3 z. V' @  Xfd 1

1 o8 h0 @4 i' j* d8 [& z3 J- C# u0 ]4 a3 g! `4 U" j- o5 v
ifelse(other turtles-here != nobody)[
& \' i6 ~- _3 E# G0 E) R1 K

4 Z- a; I7 t  w# D8 Rset customer one-of other turtles-here
) _& ~, w* m# k5 _! @# \; g

" ~6 R8 ^. T9 x  a;; set [customer] of customer myself
3 A4 b4 g& ^( p/ K+ Z
' @' i- k% d+ l& T6 {
set [trade-record-one] of self item (([who] of customer) - 1)/ l8 O3 P8 J: h5 O) Y
[trade-record-all]of self$ }! p. s1 A0 P, H+ V) i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ r. L8 R1 ~- [7 N9 [

5 c# V! k6 y  E. @  m, B* vset [trade-record-one] of customer item (([who] of self) - 1)7 [/ n' s3 ?3 N( ]
[trade-record-all]of customer

3 J7 Z4 j/ l* K/ O5 b( a
- s9 w# u  p' |! l) k0 u" n  }- q. S% pset [trade-record-one-len] of self length [trade-record-one] of self
9 |, A& _3 ?0 U0 {, y" Y) k

& U1 `- _: P+ ]# H& L) _set trade-record-current( list (timer) (random money-upper-limit))

, S. E2 w& e; \* M
) R& L) K5 e( `1 sask self [do-trust]) W9 T4 d0 x7 P# r0 T9 }. K9 v
;;
先求ij的信任度
' Y. V: ~' u2 N+ D8 P% U4 ~/ Z  q" w# a; o% d/ Q: e
if ([trust-ok] of self)
, B+ \) G8 Z0 x! Y  G" u( T;;
根据ij的信任度来决定是否与j进行交易[# M& N9 a! W2 d: ]" b
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself6 Z% B# b) n) C' d+ h4 j4 z& D

3 G9 }! F# j' C; m[
$ X5 L0 `" v2 g7 Q' J; k
$ z% }9 N4 H( b! H4 y9 Z
do-trade

! |5 ]& \1 L* c/ F6 o
- O8 ?- C' J2 B+ K- A2 m3 Wupdate-credibility-ijl
- Z, s8 q* [- Y3 C% V: X& s6 Z9 b
( J$ e$ [) s0 z3 P9 ?3 o; O# i
update-credibility-list/ @8 I1 {7 b) A, ?+ ~
1 O/ m/ s- x+ o# }

/ j0 S1 z/ |' bupdate-global-reputation-list
* g1 e( d$ }: d
) X# K8 B4 x5 \# h$ O
poll-class
3 P/ [# T( n- d5 k8 t6 d  n
& J) N7 N( m8 K0 G% {. |1 i9 }
get-color

4 Q; |( }; ~  D6 e+ v
/ `2 U$ a3 \) ^, t7 @! ^% n, L% J]]$ k  P# \- V, a! N7 h9 Y4 t
: E; \. R" i$ b2 I6 Q
;;
如果所得的信任度满足条件,则进行交易
/ j0 d' S8 v  c% H: |
4 F' f1 E: u, q, R- L[
" l& i' l9 o" d8 T7 X& W( }  ^
. J- e7 Z( n. q0 [$ }7 J) q: ?
rt random 360
4 S, j$ t$ X3 c2 ^; \
' t& }* J0 Y4 i
fd 1

% j( p1 ^9 S' c/ j, \* j& R
9 ?$ Z2 Z7 s) {3 K]
% G: Y6 `8 q) U1 g" f, W4 j3 R, c
; x, @5 B/ }# [
end
1 u$ s) W# n' M

7 J& i# ~- s. @$ }1 C6 l5 G' \to do-trust
! U# n6 w5 f* S0 u) e' Rset trust-ok False% m/ n3 {, |/ {
/ x4 x/ y+ V! M
, P3 F, r. i% d! ]7 Y( H
let max-trade-times 0' N# u3 j; S, _& `0 X3 V: {
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; J4 F( y- M9 V2 H7 D9 _' R: llet max-trade-money 0
7 B6 h  d% W3 a6 N- d! M; mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& G% N- F0 q0 A& P  E' Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 X6 R. s; f) J6 `
+ t: p: w  k* g

8 d$ @9 G( j# s- Rget-global-proportion
/ c% s# v) o1 r! blet trust-value
' d6 c/ d8 L3 u( [3 F! {. U2 N% Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

6 C' W' e5 `4 Z8 Mif(trust-value > trade-trust-value). }( \! x$ F1 N0 [) c
[set trust-ok true]' W0 n4 I- T$ ^, d0 p7 P
end
5 T! p! t* N  j; n
# O) a3 R+ \% `/ f3 ]; V/ }) a+ b' sto get-global-proportion
7 {+ E0 a% _( b7 l' Fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)& P9 G% q( S+ L$ @; ?3 y+ c
[set global-proportion 0]
0 A: S/ J0 e/ v  F3 a& H) Z8 o6 h[let i 04 y2 L* s* y4 S: O6 y
let sum-money 0- Z$ R. P- w2 u  ~& j( S1 d7 W
while[ i < people]6 m2 j/ ~7 r: v$ w1 |; G& A
[. A* E, Y+ e% j' c; _  L
if( length (item i3 r0 A- `4 P3 e6 D2 o8 A
[trade-record-all] of customer) > 3 )

% g/ Z+ i, P! q; o6 W[
% I, o+ `$ `" T. J& ]5 |0 nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) h. P' ^3 J+ J2 M6 A) C]( J0 j4 B6 o$ |! N2 F* H9 i
]8 {5 N% D# T' {8 w6 o
let j 0+ r% `5 ~' o& j. c4 U
let note 0
6 s6 t, j2 g0 H" I. b% Y$ _, w$ wwhile[ j < people]3 `0 o9 @/ Q6 Z& S
[6 N) V) [/ [( o/ E2 }. p6 K7 u
if( length (item i
6 U3 q; R( H2 H7 |& y[trade-record-all] of customer) > 3 )
3 p4 j. a0 C+ a* X; H1 f' j" |" Z& g# l
[
8 j+ l/ Y/ Q* Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 L5 C- ?4 u6 y- }1 M, N/ ~) f7 y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' r3 b( g+ o5 v8 Y* A8 d% D
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 Z5 o. Z/ Z" K9 w2 I2 Y
]! d1 \+ W) v% Z! q" D
]
' e- ]3 @/ a0 uset global-proportion note, T2 d; V+ E9 M8 n5 P
]
0 O' ~; D# ]% z6 k, Y4 a6 ~end
" L6 W+ T4 a  `+ {* K; O" s0 ]. |+ B- S9 _. A
to do-trade
7 |; w1 U2 I+ w6 K3 r;;
这个过程实际上是给双方作出评价的过程; i( k+ E& K, Z8 L5 d) }. A; f
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
; z% V" |. @" \& k9 r* d1 Xset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价3 k& ]) d, V" M- ~
set trade-record-current lput(timer) trade-record-current+ {, h3 X# {4 W# V  k- b! |+ J
;;
评价时间
% D2 R- F1 a( ]+ \; U+ T  n2 rask myself [7 j8 b  |- u) a9 ^
update-local-reputation. Y5 \& B- x+ s2 }# d: F
set trade-record-current lput([local-reputation] of myself) trade-record-current
  O4 Z6 f; [! h4 G* z9 N]
% f9 c: T  G4 @set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) g9 G; v/ A& r+ v3 T! o5 x8 m
;;
将此次交易的记录加入到trade-record-one
" h! q& y8 K- p& L  y0 M2 O$ |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
  l1 ]7 @$ T7 C, S# S; T. E" ulet note (item 2 trade-record-current )) U8 Q; u, v3 }* M% m6 {
set trade-record-current$ d0 Z8 n. a- N, ?: J6 H
(replace-item 2 trade-record-current (item 3 trade-record-current))

( w; ^+ D; k$ T- j& k; z# A- J0 aset trade-record-current
+ S6 y1 A9 K. d, d& b. Y( i6 \(replace-item 3 trade-record-current note), L, b+ C8 D0 Z6 U4 i- l- n
5 X* r& A; K( Q. E% h
$ t* a; m/ x+ w2 G3 z
ask customer [; o1 f8 Q# x# f  w( [
update-local-reputation& h* f0 c. ]& z
set trade-record-current
- _% {+ W8 \6 U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 t) G2 E$ g$ I1 A' B' I
]
+ {- F# R! [: m2 @0 z& u" C5 _" {% i7 u6 Z3 ]4 {

8 z9 T& X! c7 t% m. y5 c8 ^1 Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" ^8 b' U4 u2 i/ _3 Z. k& p! J

* Z. Y/ c2 X% w. Nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
  V8 ]* `* W. @0 L  D;;
将此次交易的记录加入到customertrade-record-all3 h- q; f  p1 P$ Z. D" a# P' @' _
end
) B( ?, a0 N  F6 O9 n
1 X: M/ m9 J- u2 ~; zto update-local-reputation
2 F8 Z" S& C4 e0 v# h, qset [trade-record-one-len] of myself length [trade-record-one] of myself  Y9 G: Z7 `/ W. N: i
' E5 i; }- ~/ b6 ?/ E4 w) D# U

3 Z  i/ k2 ~" p: J/ D3 `* v;;if [trade-record-one-len] of myself > 3
& p+ W9 l9 I) ]7 f6 H  C' B, h& y
update-neighbor-total
; c- [( k: \4 E& B: U;;
更新邻居节点的数目,在此进行
! `9 N; Q# y( h, ^let i 3  s# E0 q: K2 Q. k: V9 `
let sum-time 07 {4 e3 S; V# d# V3 a) @; O, a9 I- f
while[i < [trade-record-one-len] of myself]
+ ]8 Y" {# m6 T6 C( M: L% M% x[
# z. d1 V( z6 |9 w9 J% X6 Dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )  r# k( |+ d& z( {" Y' c+ P
set i
% y. n$ o$ G6 e, \7 T( i + 1)

# a( i( J+ k& t* q/ A( i' a4 a]( N. o' Y" o, W* L
let j 3: [% t# x' w1 D. p2 H6 b% \
let sum-money 0( t7 V( \2 `$ E0 l: H
while[j < [trade-record-one-len] of myself]9 ]# e. \. T( [- ~# L, W
[& u: n9 B) w( \# v! h# _2 C
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)1 q2 t7 G0 E: F2 r1 ^2 e) J
set j& r) q& B3 r; Y/ s+ I) T
( j + 1)

( z" m2 M; t6 `, o; b]! W" B! o5 ~" d$ Y
let k 39 g! k5 [, k$ l) ~* ?! ~
let power 0
$ W5 H" e8 B" l: Nlet local 0
% o4 b( u) X: f- Mwhile [k <[trade-record-one-len] of myself]: S  r/ e0 d) y3 Y8 p4 `! Y
[
3 q. ^9 p& q+ x% F3 ^set 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( i. B1 t/ F" \set k (k + 1)
% C% y! h# ^* S* T9 F- _2 @]
  f; V* B1 R' o5 g7 k% V. k* Zset [local-reputation] of myself (local)
9 f: ^' Y# e" r: J$ uend
" J* S) x% J# D0 w# M+ H, K' E' [
% C% o4 H* H) v6 @- W6 Eto update-neighbor-total
0 b" ~" n+ P% X3 R, S0 _' \. g$ G: T) D* a# l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 @4 H: s0 H8 j' R; L6 I+ q; Z# V8 \; V( }/ S9 N2 {

% H7 Q% o. L" y/ P" ?* @8 n  F( A9 `end
2 [$ e4 i! V" J9 A: c1 l
4 A3 Q% ?4 a) Z5 [7 |to update-credibility-ijl
  [) _6 @7 f: t
2 V7 O+ q" g( g, J3 ]& e' u. s;;
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。, d& B) S- G6 ^- O
let l 0* e# a& Y; p& }) c" c8 b
while[ l < people ]4 a% |5 \% M1 w; s3 g
;;
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
, R" A0 t  D6 i/ F( q[
' F! L' [+ q$ ?let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ U7 L' z! N8 C2 \! E; x8 J2 kif (trade-record-one-j-l-len > 3)
. p" @/ c2 b" H" K( O# Z1 Y[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-one3 z' O- R0 f8 E5 N& Q4 y5 i2 g
let i 3
4 e# ]( h3 @( g  W" clet sum-time 09 e6 W; a2 o9 x: d3 o8 j2 ]& ]
while[i < trade-record-one-len]# Z% r. Y# a$ T
[3 g: P" l+ E6 G) p9 K$ d) E) v
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 Y' Z# B2 j% J* @" s2 u' G
set i, w8 w# \+ h& N3 M; j( Z" W* J
( i + 1)
8 w# f. I0 y! L0 f  {
]
" o/ c5 E; B( t. w" klet credibility-i-j-l 0! g5 R1 W, {6 B1 G
;;i
评价(jjl的评价)
9 r  s, n! F- _& X2 i1 olet j 3
/ j% {/ C3 T! I: i: o# xlet k 4  r4 [( [0 P" B& B4 A2 t
while[j < trade-record-one-len]- y& T' X  ^+ T/ _2 P1 Z( `
[
7 T8 A& D5 q* Nwhile [((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
; y# @3 F- i' Y9 Q3 Q" X2 Bset 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)
) T) P9 f' n9 i/ H/ c% Eset j9 w( N6 E2 ]9 r7 ]/ n! X9 f) e
( j + 1)
, }0 }/ p4 O4 ]/ o/ u5 O
], v+ w- L  Y2 }. L8 U; L4 _
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 ))( N; l) z# V" j) v; q% z
- z3 M7 k# b5 J) A

" O8 a# @6 q% w. O* F- ?, P, K8 }7 slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 |4 r8 I3 q- M; t
;;
及时更新il的评价质量的评价
+ }7 v: o6 V2 G/ ~- M2 [3 R" J( Tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- X1 c; L3 \$ j! w1 k; l# l4 D
set l (l + 1)
& m+ t+ c8 R) S- D% n$ C7 y]& R* C' x+ x4 {8 y6 |) H
end
, e2 Z6 z# Q* i! K, I  u9 N' v$ \$ x( \6 K
to update-credibility-list
8 U+ j: w1 P- H8 }8 M3 Y0 u' Hlet i 0* @! ?% A2 O0 P
while[i < people]
. Z) A* b; h+ M# d6 h[
' N" r! L! Q# k1 z# ?1 T0 M4 |5 ?let j 0
2 a+ X# ~3 _! x% I0 w5 b% Blet note 0
9 n( K! a% A* d% Alet k 0
+ h( K% @' u4 y8 u" @  ?6 _6 |;;
计作出过评价的邻居节点的数目; f5 Z  Y; c5 u1 P
while[j < people]
0 ]- m8 e- w# ~4 j8 Z, a[
; W7 d5 }( _. M6 Q# Wif (item j( [credibility] of turtle (i + 1)) != -1)
; S2 ~. r( J! x5 N: A8 \;;
判断是否给本turtle的评价质量做出过评价的节点
' d# ^& r# a: ~[set note (note + item j ([credibility]of turtle (i + 1)))
2 I" }$ R3 _8 `. A" j2 _;;*(exp (-(people - 2)))/(people - 2))]
- t2 o( Q- v) U* |, w3 x
set k (k + 1)
- M" R0 R/ ]6 a8 k) c]
9 R2 `8 m2 H& X; s# q  r" I; v8 Z- W9 Dset j (j + 1)$ K( q  L% p9 \- C9 {
]# `3 d: N2 O. ^6 D- D3 X, g
set note (note *(exp (- (1 / k)))/ k)  F: H; {4 Z' G. W
set credibility-list (replace-item i credibility-list note)* i+ z; P8 p) L& h1 d
set i (i + 1)- E. f% z. w" w, ^
]0 `0 z. z% u! F( l) S
end# x* c$ c5 c7 O! s* `) L' U

% ?& v  M; t5 I2 L; A8 ^to update-global-reputation-list
1 t  Z5 Z3 S- llet j 0
7 [; J1 J6 ~. L) ^2 F5 Z; L8 Lwhile[j < people]
4 L; }( ]% ]/ K1 c. i& o[" F3 v8 D8 X4 @/ i9 c
let new 0, ~  x/ l" n. X
;;
暂存新的一个全局声誉' }6 q. m/ J  d0 {& j, y
let i 0" {% ]( C3 E6 n9 r  z: B" {
let sum-money 0( f# B, m2 h1 m8 n: ]+ V) q
let credibility-money 05 }; v. Z; H: F- [* l- G5 C; L" F
while [i < people]9 }  d- r4 {9 d
[
6 _1 h, T  |, {$ o3 t' Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# X( L0 T- R9 ?- w8 Xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ ~. |' \: o2 d+ Q" N2 [, l
set i (i + 1)
- T% F& n! k# K0 B]6 K5 u8 ^- D1 U
let k 0( K/ S  y- D: H5 g, |
let new1 0' T, _' T6 n& E! h8 l
while [k < people]
: \/ c' R2 y- K: F[+ `  O; h% W5 O
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)  a/ i# V2 D6 j* u: r
set k (k + 1)
$ A" v+ q9 I  P5 I; b4 F]4 s4 l, I0 H# n" t! \( B
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / `) [% T0 t8 h, R
set global-reputation-list (replace-item j global-reputation-list new)
9 F" O  ~# Y, L' pset j (j + 1)
) e) s4 {+ o  o6 z2 A) h  C1 D]3 n8 L) x' A3 e' w* o
end
- V: Z# J# \; M" W) t4 v3 ]& B' g3 ^/ F/ w0 K7 q# P# t- `
* K" w; R  g$ S' j, d" ?
1 E- D. P4 }' f$ @+ Z
to get-color/ j0 G. o" `2 m

9 |% c9 F. G; o' Nset color blue

$ q$ I; x4 u) o1 [, |end$ _9 b( L+ X0 D: Z( P: e

, t2 A8 j! |% j% T% Dto poll-class
# J% H& }1 e9 h  k. e5 |end1 N* u. L2 }3 Q

( |, [# v4 t- E' b/ kto setup-plot1
3 R( {# t$ o( R+ {  I8 B) V7 l5 ]1 R
set-current-plot "Trends-of-Local-reputation"
8 H! m1 s7 M7 _
" E# R. J% F. \! P( P' }# u9 Z
set-plot-x-range 0 xmax
" L5 k4 l+ y; f$ v. l' P- A
$ N* }% e1 j# Q9 k. ?9 I: h1 A& _
set-plot-y-range 0.0 ymax
+ }  f5 J( B+ E& C4 O1 d
end
5 }3 c! A6 h+ S7 f9 N: J" U9 A8 C- G* ~: L3 e# \$ S
to setup-plot20 `$ u; p; T" F+ R
. Y* A; f8 U9 X* h8 J) Z) S
set-current-plot "Trends-of-global-reputation"

" T; p5 x0 `- {# b" Y$ o" e! w. I4 I
set-plot-x-range 0 xmax

+ w3 m" t! }( Y! x; }" V
9 \7 Y, w( e$ S6 q% _set-plot-y-range 0.0 ymax
8 u  E( ~% }( X/ \" j0 k
end/ x+ l9 V; W2 X, Q5 |4 ^/ f+ ?
& n3 O2 A5 C6 q1 x% r: {7 X0 E/ y
to setup-plot3( @: \$ y, U- m& f# m% X8 b
% R( [! \; p! V1 h7 I; ]
set-current-plot "Trends-of-credibility"

% y- t) A* R2 T/ c9 ?7 s; N9 r- [+ S1 Q% l1 r- y
set-plot-x-range 0 xmax
& f( w8 g2 X! Q6 t, }# V/ s4 B
; t! W! ~" k$ F0 P7 I0 N8 p
set-plot-y-range 0.0 ymax

$ p6 \  K: s, c0 }, r- z( tend# Q% v7 [' {4 \0 W

3 t0 a5 w( |1 ]2 b' X$ ]to do-plots+ _2 `: P' A/ o* \" t7 i5 |: L3 |; l
set-current-plot "Trends-of-Local-reputation"
' o) @7 h1 ]- _2 Rset-current-plot-pen "Honest service"9 a. L* P4 R! _) w
end  ~4 ]+ R: l4 d% h2 K
9 \( h7 g- A0 H$ S# C! 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.
8 p  m) k# m1 J! l  l! {9 L' h# q; Y' V# I2 z* y4 {2 P
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, 2026-1-18 20:48 , Processed in 0.025614 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