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: 9427|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:/ E7 N5 V: J7 d- z( ^
to do-business
- [6 ?. j3 f; G& ~: h( m9 @ rt random 3609 K4 w% O; q/ |  q1 t
fd 1
- U) q" }+ u  H- t/ Z$ R/ R* T ifelse(other turtles-here != nobody)[
+ I  {- ?9 c2 {* N! ~   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.0 i; s0 X6 O, J4 E7 F( t) q; T
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    ' t; c: p' V1 c+ |& x+ S% b. I  R
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
) B+ ~) [8 ]' w7 j# J6 v   set [trade-record-one-len] of self length [trade-record-one] of self
- x) t( b' P" W0 ]; c   set trade-record-current( list (timer) (random money-upper-limit))
) U+ ^4 m" d* E2 W4 Q) T& }, F0 Y8 Z0 k; m
问题的提示如下:
& c. K3 [1 u. J) I0 H
$ w: g6 `+ |* A; _3 terror while turtle 50 running OF in procedure DO-BUSINESS
& ^+ Y& a. K& ?- j  called by procedure GO
6 H! }: S  R  K4 R; a8 w" G  ^OF expected input to be a turtle agentset or turtle but got NOBODY instead.2 P4 z9 Q$ Z# t& |1 l8 O- w  P2 r
(halted running of go)8 o) F) J. f* |+ |# ?/ T$ `

: \& L5 y. j# _9 G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; j; b) ^( }# a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
& y6 H- Q" _' O2 H) Qglobals[+ U. i) u: ?: {$ ?
xmax
1 O) l% _6 _3 p$ w# m/ M8 cymax
& l4 `$ [' g6 A6 ^global-reputation-list
6 P5 r5 ^3 O9 U$ p2 E; y8 b7 o$ ~) V. |8 K7 F: v$ a& ]" Z
;;
每一个turtle的全局声誉都存在此LIST2 K( }; @5 O6 f" C0 L, E
credibility-list9 C; I% V; Z( b* m3 ]% x6 x" t& f; y
;;
每一个turtle的评价可信度# ?9 ^+ H. F' I: G! B% D
honest-service2 r$ p* B+ c1 V) r
unhonest-service
7 j" n, Y: H; z  ]5 R* `oscillation: T5 S/ ]7 L) E; K  j8 P
rand-dynamic- Z/ K: E, o  h1 k! J; |# J$ L2 a
]
; g2 y2 D5 p4 Q3 n4 ^
; [/ ]5 l" p! m3 J  ]3 y& ?; aturtles-own[" }/ V+ s0 ]) n
trade-record-all
8 R  ~, H! a; V4 v+ w2 C! |1 H5 k;;a list of lists,
trade-record-one组成, F! T( S% [/ a- ?) T
trade-record-one6 x' m* M5 K+ F7 c5 O! q
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录& D1 X: Q* T# M$ V

8 w0 j" S' n1 w9 a6 Q9 J;;[
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]]! E9 B1 g/ K/ i, _; w
trade-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]
; ~6 Q0 n! L0 b5 Kcredibility-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/ _. B* C% f2 _! p! I1 p, \8 Y
neighbor-total8 x# |. [) i, f2 h% Q
;;
记录该turtle的邻居节点的数目$ p, G0 w5 z. _. C& h1 I1 Q
trade-time
8 J; z/ r0 g9 F$ U8 A& c;;
当前发生交易的turtle的交易时间* C8 `3 ^, @) T* e/ q' u
appraise-give+ h* G9 G7 \0 y1 J; Z
;;
当前发生交易时给出的评价
" m, ?; t! H1 _  `- K+ r8 b7 uappraise-receive
+ L6 F: d' `' q/ v1 Q; u) [;;
当前发生交易时收到的评价
; T/ v: l8 D' Tappraise-time
; ~  f7 J$ Q$ u$ z  ];;
当前发生交易时的评价时间9 B2 p; P. g$ K' B3 m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: N) k  _3 P* I2 m! @7 e! I
trade-times-total6 S1 L1 V( J' @& ]" V8 v- N
;;
与当前turtle的交易总次数
* [$ S8 L) d( M; Ztrade-money-total. w3 m' o8 x- I: b  }, b
;;
与当前turtle的交易总金额0 L2 F; q) O' b# L# j
local-reputation
# ?. _* L7 b' C' T4 Fglobal-reputation
9 M3 q8 p8 m% @" Z2 Dcredibility9 ?% W" Y; d, L
;;
评价可信度,每次交易后都需要更新
9 F1 E5 e7 N& T* V# w5 W* Ycredibility-all
( \" y2 t; p* |; X;;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% c4 Y% I3 J" `7 ?0 N. ]
1 {2 b  \, ?+ O1 c( V1 f9 x
;;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
+ U. ~. |. @: _+ h( b3 b! Lcredibility-one' w7 a* b- ~6 E/ |+ n, R
;;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people4 p$ \5 M1 C: n5 F! ^  j9 G- V
global-proportion
8 Q8 B+ l) m+ Y' i, scustomer  U; E" K2 t8 w; o( C/ d5 X8 _& }
customer-no" h4 s/ E3 v, o; {
trust-ok
7 A8 t1 i, d6 ktrade-record-one-len;;trade-record-one的长度
" M9 S" f5 R9 S* e( P; F]: i+ I0 F9 W; q* U& |* E9 r
2 H, D" E2 A0 Z
;;setup procedure& B$ p, K/ t: [" y: |7 p6 M

; L* T8 A8 Y9 |4 V, E8 b0 S5 l' R3 Tto setup, w, c0 p& |0 V/ J: t

5 U# C! K! ^& d  \( a! {& Tca

/ ^+ w+ T$ {5 V& w
% Y# U4 ]+ e7 M  i, yinitialize-settings

$ L; H) X0 T: F8 t. s. S
* P" a4 w3 O) o* ucrt people [setup-turtles]

  k1 X  K3 p( H, K+ Y6 j. ]" k
8 X/ _9 p" _1 \' y6 kreset-timer
/ S! a$ i) E0 l  ]: g7 [
# L: b* q7 W2 f7 \: L9 z/ u
poll-class

$ E4 E7 C' v9 @: a/ v
4 j) o1 p: f  F: e" W, X4 Gsetup-plots
4 m5 U( T, A$ Q4 _2 a8 V3 v* I

2 q+ d6 h% @; h2 ^, xdo-plots
. ^! h; `. F8 _7 C+ r. _
end& T5 Y0 H4 @+ _
( P2 v& ?  c5 N. ^, ^+ K6 M" X3 F6 u
to initialize-settings2 }5 o. B, ~$ i

" c8 h$ s0 W" a1 B8 Yset global-reputation-list []

2 L& N( |9 {/ [0 D; |! _4 {' U' t$ s9 X& u, T2 j8 w
set credibility-list n-values people [0.5]

5 n1 t& K- _6 S' K6 m4 J( G3 q6 d7 e; i; E- I! j
set honest-service 0
. W# T- t1 L7 O
- h6 Z- n; |0 L  a
set unhonest-service 0

6 j4 D7 @$ ]* b) h# l! o5 z, r* z" W/ u0 W- H, I9 y
set oscillation 0
6 f" E, x7 T' r& o' N; X( a. C6 m
1 T+ L& K; ~& Q9 [. X+ Z' P  x
set rand-dynamic 0

$ C2 j' [) |2 R$ Fend+ z! m- e, D* m" g6 A+ n: t

- P4 _7 j6 W. O8 s9 c# kto setup-turtles
) M4 b3 u5 _2 _2 c( ?9 uset shape "person"
8 b% B3 u1 B( n! u" R  O) g1 dsetxy random-xcor random-ycor
8 [( @' h- z! _/ p7 \$ bset trade-record-one []4 c7 C9 K, |  c/ x. m1 l% Q
1 i4 U& o1 j$ X# ~
set trade-record-all n-values people [(list (? + 1) 0 0)]
% H4 ~+ n( |% V, `

  _7 _3 p+ n( G# u; lset trade-record-current []: B. K" j: g/ {5 N. @' W1 i  b
set credibility-receive []
8 {4 a5 N# t3 ~' a" r, f4 Hset local-reputation 0.5( [" y7 p  T: F- y/ o
set neighbor-total 0; h! ]  s6 Q8 }
set trade-times-total 0% p$ P) Z' j7 t. z! l8 a! D% X
set trade-money-total 0( T, X  ]' }; D/ i- W% {
set customer nobody- U$ g+ N) q+ ^) O- R) ^9 e5 z
set credibility-all n-values people [creat-credibility]' I9 o6 w' Z" X6 |
set credibility n-values people [-1]
! v3 _1 Q6 v3 E( _get-color$ o" W- ^1 y5 X
) \! D/ [$ y6 L7 m6 o+ S5 C! O
end
' o! P# T. i8 F. v' S; Q; d( m/ ?7 p- H  i. h) S$ N: O! \7 t
to-report creat-credibility) T8 l2 o1 W% E" E
report n-values people [0.5]/ x1 }& ~, ]2 f( u0 F
end
7 n2 d; @- Q( f1 G0 h9 h
1 g% U" x& R- G# S2 F, y' s8 z/ uto setup-plots
; M  i! j6 M/ y1 R6 r. V
0 {. v- |0 J" ^4 t( Y* B) k7 |! Jset xmax 30
2 Y# t. w1 l4 V( [7 D3 ~* X
2 Q5 G* i8 W. I% {, r- I7 f7 p
set ymax 1.0

, _: L1 h6 {. z. G. Z, f) E8 ^6 M5 l4 }! i" [
clear-all-plots

& W" N& t$ c0 {0 ^6 y  N
" p1 ]( v0 l/ Isetup-plot1
3 B2 g: S% u" L8 d
8 L# e6 {) C2 g3 n! l
setup-plot2
: A" m  u+ F" x7 f. P
8 W# ^( I+ J6 B8 w
setup-plot3
, W9 T) H' q5 j, b+ Y* Z+ r
end; w( {$ Q; ?' j) H3 z. h7 Z! n
( i9 J' l/ V+ X% d" V7 h  M9 N
;;run time procedures+ l0 J( k. n" f& f+ ^

' G0 c3 }) g6 ]  ~& y0 T% Gto go
8 E! o9 B% n# u+ \# o& K
& C+ x- S' W( y3 h+ d# qask turtles [do-business]

8 |( L% K# m* b& ?end
1 S6 Q" I, k, p
2 |, Y( X0 t5 qto do-business 4 o5 I9 X, W) _
; y+ c$ c2 R0 @1 r, Y, R

1 S4 b1 Z( [  J( grt random 360

: c7 _* b$ d1 |) K! {$ C
+ s) I  a. X  ~* a3 \" e( Z# j- tfd 1
: R6 w/ C0 s2 Z0 h9 O( Z

1 R( Q9 L$ _9 c5 \1 \! L) bifelse(other turtles-here != nobody)[

6 }# j; A, _' c) q0 @8 C& ~2 W& q/ Q2 z+ D' U3 f5 Y
set customer one-of other turtles-here
0 [; \  A# y1 v& L
8 C5 Y7 G, @; p5 I$ R  Q' O
;; set [customer] of customer myself
& E3 p+ |; x5 Z' ^" Z  r

2 s  Z& x, o8 O# ^4 s/ tset [trade-record-one] of self item (([who] of customer) - 1). {: F' I$ `5 x$ q; {
[trade-record-all]of self
' m" W/ E3 m. @6 R. g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& a/ k3 Z- d7 x) B) B+ {

" c. V) x: Q8 J; P7 R3 L6 qset [trade-record-one] of customer item (([who] of self) - 1)# p3 {+ o" I- R
[trade-record-all]of customer

" ~7 H- x0 a( C8 N5 T1 @+ W( N
, U, u8 [8 ?- dset [trade-record-one-len] of self length [trade-record-one] of self

! @3 H6 y8 y# `' B5 H$ ~9 w& o" F8 u5 p3 o# l3 c  z6 K8 A( @
set trade-record-current( list (timer) (random money-upper-limit))

( W; {2 L# }: l* B1 m
8 L, Y$ N8 J: h, v0 u/ pask self [do-trust]$ O- @( ?$ C# m- v
;;
先求ij的信任度
- b/ _2 p  x4 G6 C* B+ ^6 ^# M
7 W8 I1 O+ U0 @9 Y4 a4 Oif ([trust-ok] of self)
2 o5 G! [0 h2 u9 t;;
根据ij的信任度来决定是否与j进行交易[+ x0 G. p! |" t( w+ g) f: R  u
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
8 Q3 s. }- ^- \5 ]$ G
5 p3 [) V# P" }& ^2 G[

! \7 t1 ~5 c/ K* h1 _
0 C$ Y) P" ?2 m  b2 l" rdo-trade

) N0 H' R0 p4 Y5 ^
6 T" ~0 u$ n6 c4 F% o8 yupdate-credibility-ijl
% t3 s& |6 q8 F8 k3 z9 y3 P

1 L: ?8 i) r7 C* Vupdate-credibility-list
$ |: ^1 x8 P- {, ~

, O) R. i- e7 _9 g" v- A" ~* W# d9 c" T" n: T% Q5 P7 B  W4 L
update-global-reputation-list

, y. v+ h# D; `0 g. i
6 A4 a4 p. c2 ?6 Mpoll-class

( k# V* M, h+ H- f( V; V, q4 d. F6 _2 i) n- O: A. J
get-color

2 z+ {4 m% w. ^) b: z! Y7 c  e- d! [! T. D4 e1 q5 X
]]
7 c) }" N! \! k% r0 r
, i1 e# m2 e4 G# a: U% O0 k;;
如果所得的信任度满足条件,则进行交易! d  \& J3 D2 l/ @! ]) L

  V# T. X7 P9 N  j0 J[

9 P* F" ]) t  S2 [% ]" s9 Q% {# j9 y5 C$ |
rt random 360

& {( _& J* j- u% e# i! v! ~- |
. i/ W6 Y, ~' Y) ifd 1

9 U2 ?# r0 Q/ j+ R
* C/ W1 `; k; Q4 Y+ }]

; t  g3 s4 n) `0 y7 e9 V$ \* ]+ @% K* o9 V+ `6 L# b
end
) @/ |2 c- U( V+ U4 R
! e& ~" Y0 h% o: q
to do-trust 5 M- H; Y+ A. I% H, h
set trust-ok False
# v, U! J' t! s' v% ~; |, n) G2 _8 B. E

" L2 ?- B1 o( i; |: T6 d4 Ulet max-trade-times 0. {1 ?8 `3 p0 _) u
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) U5 W8 O+ I. N; y+ blet max-trade-money 0* W; l1 _" ^. C/ ]) q+ w3 _3 I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 b4 e' `, l$ a& o
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; |6 J* \5 r, d* q: v
3 E; z' a5 J7 Y

% l& u3 }, a& J# Q3 }get-global-proportion
: M1 w$ {& T; R: `7 glet trust-value1 @" o" @4 k+ U0 }/ ?
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)
. Q# f" ^6 V/ q
if(trust-value > trade-trust-value)
% j3 d. G3 v9 J# a8 S[set trust-ok true]& J5 |' {; I7 Q( \, o' B
end
( I* M9 J% J8 M/ O
: h+ Z: l. d, W+ i; Mto get-global-proportion
# T/ e  ~3 ?4 f/ x4 v2 Z3 \ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 z$ g) H. I# j9 h( B' T6 c
[set global-proportion 0]
4 f1 d4 ~9 H- k: J[let i 0
" F2 ^( W) q0 {, w5 r4 tlet sum-money 01 W1 l* d2 f2 [% G0 p7 V
while[ i < people]
$ T8 s  S% m9 i7 n% x[/ `, [# X1 K4 H  g' Y! W
if( length (item i
% f- C3 c) g* j7 r[trade-record-all] of customer) > 3 )

# g0 E6 U2 X$ i; y4 {% R* r[* `, k  V2 q6 a1 v7 b- e  l3 M# l
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! f7 n( X. j/ l* }2 F# D1 a
]
0 z' u8 C+ p' v" `! K7 [- s, v]8 y, O5 h! Y! q( E0 `7 J
let j 0
+ M0 ]" O- K6 n5 `# N( Ilet note 00 s; v  R% A$ L
while[ j < people]
: [7 E# I$ Q0 l[
' G' v; \1 D- l3 P* @  K- U5 W  _if( length (item i
0 Y1 Z6 E6 D' y9 s6 c  i[trade-record-all] of customer) > 3 )

; z/ V# T6 B! ~1 r1 f: e6 b) x# B[
0 e4 l. s0 }  H2 {ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) f! ]$ g1 X/ c[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 E( f: V* h4 p8 p
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# t6 c! z3 B' X% V+ ~3 G
]! l& G* x$ q  B3 N8 U
]; ?$ m. `7 e+ o! ~* r1 O$ s
set global-proportion note
, x6 E6 O, Z: g0 E$ V/ o/ [4 _7 h]
& j7 s) r/ m7 |# Xend2 z5 p3 e0 {9 v& U( y
  y: [5 A5 [9 x. q
to do-trade
, g$ J" G, |4 A& G5 ?;;
这个过程实际上是给双方作出评价的过程
# G1 g; z$ V1 y3 R( z. \set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
/ {. Y) t5 A1 K. S% v' v* c3 nset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
! n+ h, h7 O9 p9 m: V+ w. o8 Qset trade-record-current lput(timer) trade-record-current+ x# M# Y/ \% K5 B
;;
评价时间# j8 R# @: H/ g8 |5 k* \
ask myself [  c( [# c6 V1 }
update-local-reputation
9 @( K; F" [; x* {- N3 H2 Sset trade-record-current lput([local-reputation] of myself) trade-record-current
( z2 ?4 X. Q- e8 b6 Z]7 G- X0 b* y8 ?% q/ J
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) v& }  X! [5 s( y, f9 O+ B* ~
;;
将此次交易的记录加入到trade-record-one
: S# x9 ^3 j, Qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 U3 V( E# z# c& [let note (item 2 trade-record-current )/ K0 T$ l( g+ p4 d+ u1 k
set trade-record-current
5 Z/ C, s; \- B% D1 c9 a; ^/ k(replace-item 2 trade-record-current (item 3 trade-record-current))
% [8 P5 u; u0 [$ X& @& \3 T9 ?
set trade-record-current; A! x8 w/ ]) H% [- C' z3 D
(replace-item 3 trade-record-current note)" N; X8 y6 D% c7 U( D) n' E- _3 i" Q
" C7 U+ x/ }  @8 \5 B8 E0 X
/ z: E" G2 R  Q8 I
ask customer [
$ @+ ]9 N" p: p+ K6 vupdate-local-reputation
2 y3 l1 P1 _( xset trade-record-current
8 Z* Z0 h, d1 I" h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 u7 D$ G8 R0 Y* w: L
]
: _# U" ?' L! _
! [, }; m4 [; {& d0 u8 O
& v9 A( s2 t7 x8 N- w1 O7 W9 }
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ D- ]3 a2 d4 O9 L5 \

- c6 T# E' p/ K4 p% K  lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& J0 ^5 _0 q' t;;
将此次交易的记录加入到customertrade-record-all6 p- S) D/ H5 Q" j
end
% x5 S  q! t, u) d+ k* X- |- f- T% G/ }
to update-local-reputation4 a0 K7 y! _: _/ R( ?" V# i/ ^
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 h" R8 u( e7 L7 w% P/ d1 j, C/ h( X$ ]% G/ g6 [/ a( K

$ b$ N2 u% N/ C;;if [trade-record-one-len] of myself > 3
- e& ^5 `( E5 r& l/ n
update-neighbor-total
! Q( P. W/ ^* K2 p;;
更新邻居节点的数目,在此进行* \: W# q) ~3 e
let i 3
5 R. G1 T% y6 e: A# Blet sum-time 0
' m) n5 L. H, ]/ z2 }7 A7 Y! gwhile[i < [trade-record-one-len] of myself]
4 p5 k4 F. m' ^  c2 a* t; \; e- x[
0 \* g& s  I& d1 E& A6 }2 x1 X2 xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& w+ M+ ^: K' C5 vset i5 N5 ~" `9 O0 [  a/ m
( i + 1)
- E4 o* Z! ^9 U8 L( \, `: j
]
% B6 [% |, t* M3 ulet j 3* C! E8 i  X! e$ a2 ?/ O
let sum-money 03 s! ]2 Y  O9 T; G  y8 [8 `
while[j < [trade-record-one-len] of myself]
7 v0 J5 l+ C: r# z! q7 t[
: A* M+ x2 q5 `6 \# tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
; b9 }3 ^: l/ S1 k0 m0 k  Qset j9 n4 x5 O  k) h* h. j" G
( j + 1)

! S( p& o7 D& }; o+ K4 S$ Y]
. C# a: B4 F( D2 p4 N, p1 hlet k 3+ ]1 W+ c+ P4 E* k0 l+ x# I
let power 04 p5 G! L) s& _
let local 00 O) U4 P; p% [% o& Y# V& L
while [k <[trade-record-one-len] of myself]
2 a" ^: T2 w8 M0 M0 n[1 g7 F0 a1 I, J
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)   f: F  n) b$ H2 ]
set k (k + 1)/ d  v. T. k6 X# V9 L# B# R% h
]4 W/ w! D2 ~& x3 Y# m
set [local-reputation] of myself (local)3 L! }/ ~: b7 n
end* h, \3 B, ^3 ?

- ~3 f- ?# m) [! Uto update-neighbor-total$ x, Z& |: k& q, g: v5 d
8 Y5 a$ A: V: h0 \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ m1 w( U1 `7 `# D

1 f* E3 [. T! `2 _4 f8 F% i+ C
% w$ G& l5 z/ G! w4 U3 b/ Y6 {/ \
end3 c6 s: n- M: K
) ?7 C* l) d- |$ l
to update-credibility-ijl
3 W- x2 h- O% t3 B& Y& ^
/ A3 p- ^2 X& O" j2 u;;
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。/ |+ l! k$ k3 D+ `* \* \: N5 R
let l 0
" x2 q. [* ]1 s  G4 \/ Wwhile[ l < people ]1 G$ Z  B/ f# b4 }* y( [8 a  Q
;;
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* D) y; i+ H9 G3 s
[
/ D4 D# Z: Q( r: l" a9 Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 I2 j' O4 v7 q1 U9 x) }/ m
if (trade-record-one-j-l-len > 3)- o% F3 m6 _$ J2 k
[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-one2 a# R! k9 {6 g6 H7 O: s. E7 J
let i 3. _1 W. m* o, y6 t' ?6 q8 r
let sum-time 0
+ W; n6 M( }" u9 u+ i9 ywhile[i < trade-record-one-len]
4 \% o) f3 o  ]4 f; U9 ][0 Z# \1 |4 h+ ?4 a( e+ ]
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 W8 u4 ^; N/ m/ I. Y  W$ p" d9 A1 Q
set i
# s/ y: s* G% C1 z8 O( i + 1)

9 |5 u; F& P! S' M" }' ]  s0 |]8 p1 z& f8 o1 F8 }5 |5 @
let credibility-i-j-l 0
9 Q0 u1 N7 x# l" _5 V;;i
评价(jjl的评价)+ M/ s1 y4 z. T4 O
let j 39 u! m7 s+ V3 X. l. s5 Z: h
let k 4
2 S( J! I7 U" Kwhile[j < trade-record-one-len]8 }% u5 Q9 w- D
[
) B. n5 S% O- d( Awhile [((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3 a# n7 l' j! X, [0 I' ]! L$ G. K
set 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)& y& e! Z8 t+ _( \' a
set j
9 W+ K% V; j/ B0 l7 J( j + 1)
$ ?' u2 H1 ^$ a2 R0 {
]
$ i$ _0 a# a& ^; k: J! _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 ))) G4 p) X0 O1 j# `! i1 c

) ?7 J  [! R1 F+ g+ _

4 g$ K9 x1 U5 g+ u1 V( J% n; G9 plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ ^$ W0 b: e2 P2 f;;
及时更新il的评价质量的评价  T% L( }  E6 p9 u3 R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 ]- g2 m* r) U7 S. }. d* u$ X
set l (l + 1)
0 |  P; B) e& I7 s; V  `" n$ x]5 O1 R) o. d5 {: J8 z- z
end
# R7 f. s- T# M( l% t
2 y" S- {& }' x! z- oto update-credibility-list
0 R% ^: R5 _% R2 H, K  H4 ]let i 01 x1 B) {3 W' f4 K" I
while[i < people]
4 J2 V+ t- F2 h9 B1 d+ p$ t[
4 h7 D  ?5 F0 f( Xlet j 0
1 ~% h$ Z. I6 T7 Z( ]+ f2 xlet note 0' J* [4 @: q( l7 Z/ J" [0 ~
let k 0
. w. o( J6 q" s9 ^# L3 R9 a;;
计作出过评价的邻居节点的数目! b* i9 @. C( H) s( J/ N. ^
while[j < people]( [( v$ V" U6 R' z9 W+ |  h
[
# D5 e) q( {! z! i1 o- iif (item j( [credibility] of turtle (i + 1)) != -1)- l- u' j$ @. x" u1 q  q8 {
;;
判断是否给本turtle的评价质量做出过评价的节点9 Q! Y( W. y" M
[set note (note + item j ([credibility]of turtle (i + 1)))
1 l0 h( Q0 G( R' g+ w/ U;;*(exp (-(people - 2)))/(people - 2))]

0 w& C. Q1 R' W, H# b3 Dset k (k + 1)
! C+ _# d( K. Q4 \]
: D9 o; _' }" B2 J) ~, ?set j (j + 1)
* o: T4 B7 i! }]/ Y4 q! [: z4 \; Y* u% `1 b3 d4 e
set note (note *(exp (- (1 / k)))/ k)
) G" t# |" P+ zset credibility-list (replace-item i credibility-list note)3 ^# F  @1 _1 z5 G; q! h
set i (i + 1)& p' k/ E5 g9 U% U$ V+ M  @
]
) Z/ o/ L3 W$ C* {8 M4 F5 d0 Yend# x2 _" g) C+ i, S, T  o- T
4 ^1 u7 ^& g  J( C7 r
to update-global-reputation-list
  D8 P3 E6 q% i( K# b6 qlet j 0% S) H1 ?# `  N! _; L6 p
while[j < people]7 f. Y4 ]* F+ R% u
[' M1 O9 `+ w' I+ j! X- [5 e+ P
let new 0. J7 N* l2 G' i; f0 Q( |
;;
暂存新的一个全局声誉& k% B7 l: ~3 k8 h% ]* p
let i 0
" f( i6 j+ |+ Vlet sum-money 0( S+ |$ C4 i" k1 ~( L1 O) a. |4 ~
let credibility-money 0
* i8 X, \9 X4 S. jwhile [i < people]
: A% v; u3 a, k9 B[
  _! S; t! B' A' ^* I4 Nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 q8 Q/ Z2 a7 u% bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! b- S" p1 ]3 g: a
set i (i + 1)- |% B) i, F9 p$ b" Z) V( v+ Q
]
4 {+ ?6 a8 @) f' a2 n  ?2 d. o1 U4 tlet k 07 t0 T" n+ ?- H' v* e* ^" I
let new1 0
" p6 D  U7 G# swhile [k < people]* y  R: J1 Y5 e. S
[
7 ^  N) w- O& `! ]# d6 J; jset 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)% I+ |8 X- x3 U) u! M
set k (k + 1)$ v6 V% I* H  t9 W: ]
]  u+ K8 R7 }/ w1 Y. i4 J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 i0 g$ V& j, E' z& N% ~set global-reputation-list (replace-item j global-reputation-list new)
4 T! t% Z( r+ i: dset j (j + 1)
+ }! @! l: o& G2 x]8 Q1 G4 q+ I3 Q2 v+ f
end
" [! i/ }# t& u  z, t
# x7 ?: h! k+ g' c9 F+ [+ T3 L$ N# `* E5 y* w& m3 ?$ r' ?

8 r  h) \2 D1 ?5 ~to get-color* }1 z3 V8 Q- z6 G7 e& J

0 Q7 L# v; y* l7 B1 Z7 ?' s0 M' }set color blue

7 \- P- {0 P2 u* [end  m( ?* z) s  X+ @% @7 @

5 f2 I6 ^. H' c: `to poll-class( i) M: E0 f9 V* A% u
end1 L& h! d/ S* t! Q" ]
( M9 H0 x5 |6 x( ~7 f
to setup-plot1
! Z8 B6 ~1 N0 D& ~2 m
3 Y( M$ j& q+ e7 Dset-current-plot "Trends-of-Local-reputation"

3 R' h' l- U" R8 N* {2 ~
) b9 R/ Y+ h" V6 p/ rset-plot-x-range 0 xmax
) ^1 h1 t, T2 w3 Q% V1 Z2 }' f
) G% r7 y( Q' T5 b) W. |' O
set-plot-y-range 0.0 ymax

- O) s0 {- x: p7 ~# fend2 w2 \, i& N3 |) ?
+ _+ Y7 _9 P3 \! z! a3 ]: T5 K
to setup-plot2
1 N$ V) [8 a+ S, o, E' h5 V
$ I5 r( Z0 J% i8 zset-current-plot "Trends-of-global-reputation"
2 {3 f, F6 n, n5 `& U# |" p  z
* m# y4 I+ q' x% Y; Z' `
set-plot-x-range 0 xmax

1 E- J$ J' _$ ?
9 L6 u3 K8 ~7 ^6 Kset-plot-y-range 0.0 ymax
# C  {1 v. {6 k
end
) y1 D& W) O6 ~8 l
+ Q) ~* H- j" R& a# L' mto setup-plot3/ E) v+ g, I0 m8 m( D! M, B
# x+ u* m& ^  k! y
set-current-plot "Trends-of-credibility"
$ g. ~3 x8 \$ X

/ e8 A8 C  y* q3 Zset-plot-x-range 0 xmax
& D) b# x- f3 h" \& ^& {$ q: e& r

/ x% e' x& E: T1 Xset-plot-y-range 0.0 ymax

( O0 R6 Z0 p  e( L, [+ |+ nend
# o) a+ Z! a- I8 b! ?- z
  R2 j6 Z3 k8 K/ W6 Qto do-plots. z- m6 |7 S% x
set-current-plot "Trends-of-Local-reputation"
, v2 z9 ^" a( K) r, [" xset-current-plot-pen "Honest service"- t) i. U. _, P$ E& y
end$ p5 [1 |/ _" j7 z. U5 q
* `2 e3 Y7 l" |1 Q7 O
[ 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.& h1 W1 O# d) I: `

( y7 d9 W  J& c+ C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, 2025-7-8 16:00 , Processed in 0.023371 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