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: 18711|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:7 o! @( g0 V& S! h5 v4 J% o! y$ \
to do-business
$ N9 e6 ]# O# H% ^* W rt random 360& I8 l2 i, P  a% `* r- Y2 L
fd 13 t( y0 y( U% K4 A
ifelse(other turtles-here != nobody)[: o3 R6 F# c% i$ {
   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.  C& B1 D5 L6 W& j* |% B. N
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
* s; d" P  O! Y   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer8 J/ X7 y: b% p: B; q& Q
   set [trade-record-one-len] of self length [trade-record-one] of self
& F8 w  m1 W" ~0 c8 C3 M   set trade-record-current( list (timer) (random money-upper-limit))/ m/ K; R7 ?% P' _

5 |- i3 `' \# W4 d问题的提示如下:
& o" d, J( Z1 A# m- U! f+ ]% x$ H$ i- P0 ^; I7 }
error while turtle 50 running OF in procedure DO-BUSINESS2 d) ~$ W) q- }$ t+ T3 t
  called by procedure GO
' `5 e4 _8 B8 `  f+ J! D, mOF expected input to be a turtle agentset or turtle but got NOBODY instead.
( h& {/ Y; E) V
(halted running of go)" I3 Q* N2 V) R4 R6 P- j
2 G1 [' r5 a+ B6 W, B3 \
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~~
5 m" t& }! E; f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/ v/ M& @* l% ~& [4 v: U# x; g
globals[
7 j* m9 U9 Q7 q. [xmax! ]7 ]# a' w+ q( H0 s
ymax$ _7 `8 S& f: D2 Z: J
global-reputation-list+ u9 H0 U  `2 F

; o# s8 M2 [( i; c;;
每一个turtle的全局声誉都存在此LIST% |9 ]+ ]5 |' E) {7 }4 V* o* q
credibility-list
0 D1 j! K! H5 P3 d;;
每一个turtle的评价可信度
3 w: O+ ^- U1 t$ b  ]2 U7 whonest-service6 e) m; z# Y" h' \+ ^9 `
unhonest-service
' W! P$ }. A. V( {) ?oscillation1 o3 ~1 P# Y5 Q+ f% U4 |
rand-dynamic
& M- G; n: H6 _]
! @/ C8 s$ l8 ]/ Q, J8 l! G9 x  h0 _5 I
turtles-own[! w* O9 u2 X  L) |+ f) w$ H7 L8 l, D
trade-record-all! I; Z+ Q, y* A+ f7 w7 g3 G1 `
;;a list of lists,
trade-record-one组成; G- j0 @' f! O2 I
trade-record-one
# h, o9 T' X  ?2 l3 M& y7 \5 I;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
  P7 d4 ?, z5 |% ?0 B
& c8 @& E, l" R( x# b( H$ Z;;[
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]]
* e7 Y+ T8 A9 z5 Vtrade-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]
8 }( j8 g* |6 Q2 f" W2 v6 Acredibility-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
6 j4 P" e/ c/ U- Cneighbor-total
2 t/ u8 ?4 u4 R; r1 G- K  h5 a" r;;
记录该turtle的邻居节点的数目2 q  q5 A6 x# @7 L+ i$ y- p5 }' w2 H
trade-time
, a& `, ~2 A" W;;
当前发生交易的turtle的交易时间
# I# s  o) g% q9 w) N9 J0 X( Wappraise-give
( h3 h2 S  a* t/ F( h- D6 @;;
当前发生交易时给出的评价
$ z& \& \$ x" y  t3 Z" E$ Z+ v# F0 _appraise-receive
. y+ t+ M' l8 \. l;;
当前发生交易时收到的评价2 d2 w2 s2 Q2 M& h
appraise-time& c! d  l6 a) e; T
;;
当前发生交易时的评价时间0 M  c& s! I% \7 U% I# x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! n$ y7 ~, Q, jtrade-times-total: y7 g5 Z% m1 l; V7 `8 C2 a* u$ ]0 d6 p
;;
与当前turtle的交易总次数* H$ _! g: `& X* x3 f+ x
trade-money-total4 P7 `' n' X, N4 |" s
;;
与当前turtle的交易总金额
# ]  {% Z  L: O" T4 S! Tlocal-reputation
/ ~, N8 u- n8 e: W7 m- k8 w  d3 i5 kglobal-reputation! A, I1 Q6 u* v$ U7 u
credibility% W5 l9 n- C7 K% l7 s: k
;;
评价可信度,每次交易后都需要更新- L2 x( N) j$ C. ?/ f
credibility-all
2 a/ v: I1 k' u0 w7 N) \;;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
' v$ q, S8 z) v9 r! X$ z3 T
7 ~& a$ r( T& @5 o: V3 ?;;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0.53 ]0 {5 i$ y2 K
credibility-one
' D# w- j2 [% O;;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
' |9 T( W4 u8 p# q4 Y2 Yglobal-proportion
( J  X# {( y0 \( z. K2 qcustomer
) u- I- G# K, v+ \1 Acustomer-no
- m0 x* J% d6 {8 m% v+ h, |trust-ok3 N+ Q+ ^# c3 l- w0 j  U7 I
trade-record-one-len;;trade-record-one的长度
% [4 l; W1 u7 w, j; i]* Q4 w$ T! d: B8 [

0 x& ?# ]1 ~- e/ ^;;setup procedure
' V/ X3 x: P9 q" a+ s. g0 {$ I7 O8 M
to setup  l  D) z2 L- i

! H1 g0 e" J% d8 w* kca
% N. u- T% z4 u+ n/ ]% |3 l; b
4 Q: \. }5 @& {3 S6 m' E6 V
initialize-settings
! X, I! n$ N, M2 g: Q6 Z
1 h+ [0 B/ y4 z" F3 l, `1 K
crt people [setup-turtles]
) J2 j8 i# E/ N

, o. i: s- ]: _: D2 K# {) O6 L7 Treset-timer
/ Y5 {8 B3 B. y% f# \- J  F
3 Y% \6 Q4 \. |9 M. C& P
poll-class
+ P4 s. ?' c: z
1 g; p3 W4 v/ c$ r, |
setup-plots
6 w; k1 _9 L2 B1 @$ h; }) I. \
( C. j( L; `( `# P6 K- e( i+ k3 F1 @
do-plots

0 I* c8 a& k3 m) h1 Rend
; ]( g( R' m4 ], \5 e( a1 W3 z" w4 N8 D2 g1 G9 I/ z& D
to initialize-settings8 n5 ]0 a4 H+ K, j& q* [

8 f( H1 Z0 U* v: Zset global-reputation-list []
' W( o$ U& B4 f  z9 z
8 V2 I# a; u, T4 |0 c' O5 G& W# O
set credibility-list n-values people [0.5]

2 e: {+ p6 B3 r  a5 a
# J5 U: ]- R' I9 b9 V/ [6 zset honest-service 0

' @5 }1 D! S  K1 l% N: m
- s- g# d1 P! c8 l+ b& b$ uset unhonest-service 0

' f* e! a7 S. A$ O% f& f& p+ n- U' C, g0 G! H
set oscillation 0

% J. l3 A4 Y5 w) P% [# `' R$ R! T2 H) d0 Y, Y: r$ N
set rand-dynamic 0
( Y' a$ x6 a0 z. ~; Y/ |- u% E
end  Y3 d! m) F1 X0 E3 l
/ w1 E5 P' k; Y
to setup-turtles
: D  B$ F- A6 }* g3 L3 kset shape "person"
- ^9 N$ j# s% p6 j* w: tsetxy random-xcor random-ycor1 D/ d# |, g, o4 v  U
set trade-record-one []+ D& O$ F* r) m+ q- p6 ^& \$ T3 C8 u( t% D
% \: T" O, i+ T1 j3 Y1 F8 `0 v  Z
set trade-record-all n-values people [(list (? + 1) 0 0)]
9 d8 Q! a' i. G3 t
  {, T* c4 K. X# L
set trade-record-current []
! l1 E/ y% w2 ?& h+ Xset credibility-receive []  j0 ~) M0 O. w& p
set local-reputation 0.5! e3 G- k2 P, t2 G7 G7 X
set neighbor-total 0
8 r6 i8 V7 k6 H4 fset trade-times-total 0
* t3 O" ?7 g! D( A8 ?set trade-money-total 0- @% Q, @* x8 B  b5 r' C; S; c/ i4 C! C
set customer nobody
9 r( R& M/ r7 Y0 d: b$ N7 a; zset credibility-all n-values people [creat-credibility]
% O) R1 i  E( x3 X8 x, ~7 rset credibility n-values people [-1]
# C7 |  s3 ]: f0 g( m: jget-color
, Y- \% Z6 S& W7 N& c0 S& v& N

) b$ d3 l/ k; i+ rend
7 m& z" d* y/ ~3 \$ e7 y
2 U" a5 A6 W+ R1 Y- ]' N. U( qto-report creat-credibility( ?' K1 x" g! z2 L2 v. I6 C9 D
report n-values people [0.5]8 I  t" M( M" x# P$ a0 A9 k2 \
end1 [" O) }7 x! h2 }# c5 i- u7 W! Q" C

" g+ v% z6 U9 T' D  c; Cto setup-plots: |. C1 [' m- y! U" k& R
2 R* T8 S8 `2 i) ?2 M% T
set xmax 30
0 D6 V8 n6 o7 u  z, t

7 e: |; @+ \- L  P- yset ymax 1.0
7 P! \+ Q" \" C7 k6 u0 c5 ?; m
7 b' c+ e, m+ y, z2 I# y
clear-all-plots
+ A  e' `. n' Y4 A. Q
! O3 z) o$ Z2 t& v5 a" j0 O% ^
setup-plot1

  ~5 w/ r3 F' k6 F; `* ?
. ?; E. z" g9 fsetup-plot2

1 A9 o3 `' i4 z& l- d1 E! U# R: c
) b, x# j; D; v* @1 Q, nsetup-plot3

; m5 G+ e, S/ y6 F7 hend
0 B# ?; M# X0 Q
2 g: q* V( q6 B1 V; M% K/ [- l;;run time procedures- d" S& k2 {8 B; o; `

. j% S1 c9 T, ^2 ?to go
: A; @! @. d: O$ p. X, v
0 C% B" B8 K6 i. i$ Lask turtles [do-business]

5 v2 a; i8 j* ]* ?% {  D' @, Mend
6 x3 L% y" G0 _8 S- m1 L
3 C7 }2 S5 F  B# c/ s! ~9 j3 oto do-business
8 \0 P1 R3 n2 T* J+ J1 p

' L9 \' e' H2 t7 v& D+ G* {
8 v. K5 v9 m$ s' k) R1 ]rt random 360

7 k# \4 `( e$ {# ?- R- L5 Z( P% s/ L* }6 z* H$ f, H; U3 q
fd 1
$ G6 F) N" k3 U4 L# i

. P7 M$ f, Z+ [* c$ {ifelse(other turtles-here != nobody)[

% }! [0 V: M* n( e( a( H# N) I0 F9 w3 @( k. F: ?# m
set customer one-of other turtles-here
8 V6 Z' w# J2 s( I; _
' S  h% `. U, ]( ]2 o
;; set [customer] of customer myself
% ]1 o7 @4 u0 P; r" ~3 q

- I, _6 q5 D# p# @4 o+ L) N" \set [trade-record-one] of self item (([who] of customer) - 1)# b3 E$ n: c3 q8 Y. x
[trade-record-all]of self
, Z, g$ D$ `3 S; D$ W, ^' `;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( c+ K2 |! @( q2 Q5 o0 t' C
6 B! ?+ c' W- _. U% k& y
set [trade-record-one] of customer item (([who] of self) - 1)% Y1 i, S$ y) Q2 b
[trade-record-all]of customer

4 t! l; Y' U9 M% u- Y
9 ]& X) B4 |2 R8 ?. W3 @% Z6 T4 Cset [trade-record-one-len] of self length [trade-record-one] of self
8 V. }' J7 N1 t; B" V- W% A# [( p
5 R& V9 q0 M0 Z. S
set trade-record-current( list (timer) (random money-upper-limit))

3 X  ]9 Q5 P+ v; Y% ]; Q4 H
2 r7 ]- Y7 B, n  ~7 `2 L& d' jask self [do-trust]
! O) O) h# a1 y" X& g;;
先求ij的信任度/ _2 b7 u' C1 i. p3 U! s
( S; K' q. \5 p( L$ ^2 t
if ([trust-ok] of self)5 X/ k: o0 t, z, v0 r3 w2 h/ T3 o. Y
;;
根据ij的信任度来决定是否与j进行交易[
  Z+ d8 y! ^! u! l& e% ]+ v$ y9 n0 Q+ }ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
+ C4 O8 s# P8 b+ A
8 k' s% z. x6 S" M. x' L8 [[
' ?" E+ a5 c& f
% D" T" |! k% K: \5 O& Y3 B6 v
do-trade
: ?9 O& g; V( U+ d. o, k* ^5 @

3 r2 v$ c( _8 c& D% `" cupdate-credibility-ijl

; a, d7 W$ |! q4 }+ L/ L3 n. v0 K! u/ f0 ~5 R+ v
update-credibility-list
1 d% g" a0 f/ G" G1 D' R
2 t) j4 K2 E7 h$ Q7 T% w; l- ~- c
% Q; Y  |! o1 ^9 E& @9 F
update-global-reputation-list

+ l0 E8 S+ ^. S+ m& y
6 R8 {1 f: m7 R& K  O9 _poll-class

# A9 I/ n) V( |- _: j+ a
- C8 Q+ J5 u' \get-color
- S$ U9 E% p& O; y6 P

$ x2 o5 x$ y/ t! |$ C- i7 x, r]]
% \- w1 v8 N; b
6 z, B! Q8 T8 S! Y' V4 X;;
如果所得的信任度满足条件,则进行交易9 m: c- `7 u# H3 s6 @

. f" N6 Z, F/ G1 p* N[
, b# a( s4 F' P" a
0 l7 {2 d- j6 y. p! ?: D
rt random 360

! ]% n3 I+ C) `3 d/ y8 U9 P) k! T5 U  B
fd 1
+ Z) P$ {* t! U* L% I
& h/ X7 v' Z# t" ~" R6 Z
]
9 {4 H7 g* `, t2 W' A

3 W# r3 w! U! N4 W  Jend

7 w. c4 f2 k+ L9 \; z5 Y  e7 ]; U$ L0 w' ]
to do-trust
) S. R2 Y2 A% B! u1 z3 ?set trust-ok False
1 w( I# u7 _! z) B9 [
' k$ l: y- w0 W! ~- x, N/ ~

0 g+ I7 b; _! i1 K) `2 [let max-trade-times 0
2 m8 M" ~, i, e8 a5 k6 u+ {foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 U9 A6 c& P" q% p* _  u/ H8 d
let max-trade-money 0  _$ y- F% L: X8 n
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# U! ~& o* w( g' _% H; `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" [8 }4 G5 q4 @9 T  A" L2 v
5 [, [4 q0 n7 M  P
0 A& J, ~# r8 v, t2 ^
get-global-proportion& c) h* ?, |8 ?, T
let trust-value- W+ z3 Y1 M1 z4 E4 h
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)
& n7 Z/ r, o2 N% i+ n7 ?
if(trust-value > trade-trust-value)
8 |. M0 P8 m+ g! f[set trust-ok true]2 v3 s4 I4 j2 M$ v
end1 k: h/ r( X" c; {& V( h, `: t

( _3 x% ~- D2 Pto get-global-proportion
9 K1 E! p) a$ l9 s( hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 Q$ G9 ?" f& {$ a: C2 U) M
[set global-proportion 0]& T0 @5 I: L( u+ A5 ?; ~
[let i 0
( _& f! W4 c7 j5 f( A( hlet sum-money 0- U$ l( u+ P' E) h# q! ]9 ^3 M
while[ i < people]/ C( ~( [, Y7 N) y' @% }6 z
[
! K' D' a  Q( `$ l$ O! N9 I" y( sif( length (item i& b& c4 Q' D- h# k6 ]! m4 d# \
[trade-record-all] of customer) > 3 )

! p9 D, ~! m* c[
( Y" ?" p1 }. D6 ]3 C4 z) {set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! W9 B: e8 {1 _- M( \- |# J9 f
]- a: W% q! l$ s4 u
]1 a: A" p! D! V4 x9 W+ P) f
let j 0
6 I# ?# G4 S7 s5 W1 T1 n% clet note 0
6 H$ D5 s' o" t' kwhile[ j < people]# o# E. z/ o6 q6 @7 Z
[
0 O# s+ m& f3 z) C$ y% y& }if( length (item i
, H9 k0 D& I+ ?& W: f[trade-record-all] of customer) > 3 )
( Z% N- i! F- j& c5 }
[
; Z, Q$ l, f( M- H' b. [% I6 ^ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, n9 _& P! S/ e7 W" C[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; q8 p8 G; i0 [: ^5 L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' I4 {6 R1 A0 h]! u9 X9 V5 \/ U2 P/ {/ p
]  C( q& y- r' G4 M
set global-proportion note; S) G+ M; |/ X5 {8 l  `
]
* i, E' z5 ]  N& ^, Fend3 u7 u% c7 a' N: H6 b
( M6 X0 Z( G0 R
to do-trade! X; r) v( K2 v3 H6 i
;;
这个过程实际上是给双方作出评价的过程0 l5 u  i* ~( P8 h- ]
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
" j7 f* a, n& eset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
0 C  L  O( K' O5 m/ vset trade-record-current lput(timer) trade-record-current
2 f# B0 b3 q; }! z3 q  };;
评价时间
2 A$ j% s, }' f! d' b' xask myself [+ D- Q8 i% m& }; U2 p" I7 b% e! O
update-local-reputation
. s  _2 l" a& Y, A% ]. _set trade-record-current lput([local-reputation] of myself) trade-record-current# J) J4 V  q; T5 u, ]( b7 C7 k
]' \  G( E& s( d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) @! o& N5 D7 k" ]5 j* s;;
将此次交易的记录加入到trade-record-one
! y8 l  \6 r* i( G& `7 z0 s) \8 f0 \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
. {+ \1 S4 o( J' d% xlet note (item 2 trade-record-current )* `+ D1 O4 @3 i" k* O
set trade-record-current+ ~) N8 Q4 z0 c8 n* f2 e3 e! d
(replace-item 2 trade-record-current (item 3 trade-record-current))

( U. |8 I$ J; j6 P7 Kset trade-record-current
: ]( t' l8 T" a(replace-item 3 trade-record-current note)
) @) z: l" m& F% y9 B. T- t1 M5 [1 n$ {* @+ C$ P: `7 p5 l
' g; n& b, k6 ?
ask customer [
) ^8 \0 F  O. Vupdate-local-reputation
) |9 u( ?8 ^. m7 j. J/ cset trade-record-current# s2 l( j5 n4 k) j! M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 s/ k* |- @* a7 ~. o' b  c
]
+ B1 f# u5 q3 U9 P
( g5 z5 n) M. F* g5 j0 h
2 b  u% ]* [+ D( k4 A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& `7 w+ {; @7 }

& }6 N: b. H: W- U( m) t( Z1 `set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 G+ y5 u% E0 Y4 D- F# p* ~8 k;;
将此次交易的记录加入到customertrade-record-all
) G1 w4 Y5 F' w9 D/ ?end
# I* q( W- X! @% }0 V, c  Z4 B) H$ e+ e8 ]0 h" Y
to update-local-reputation& g+ @$ h6 U7 K7 w2 M3 E3 W& D2 }* H
set [trade-record-one-len] of myself length [trade-record-one] of myself- c0 |" C6 {* [/ t
( q* c5 A+ b, Q( f; f

; n4 b+ g( Q5 b+ K/ F: \- v4 `;;if [trade-record-one-len] of myself > 3
) H. x# _  O, r, A. g; Z9 S
update-neighbor-total" r  a6 B$ c4 r% g
;;
更新邻居节点的数目,在此进行# [9 z/ U8 ?6 r* F
let i 30 O) B# J+ C: s1 ^: x" k
let sum-time 0
/ \# H1 q3 L  s9 G+ O( gwhile[i < [trade-record-one-len] of myself]
: L0 m$ L. V# b8 }  O8 ^2 s- L[
$ D/ ]& g+ P3 a3 [- x3 s7 nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 o. S' f, t+ ^set i
' x% n2 A. y5 ?1 K* Q( i + 1)

/ v' o! `: N0 k; a* L( []7 @, I3 H6 L+ h. c3 F
let j 3
5 A) Y# }/ s& R; elet sum-money 0
7 H' g' X! Y0 _1 k. Y" r/ Q; C5 Cwhile[j < [trade-record-one-len] of myself]
4 q6 |; l" ]) f  ?6 q; v[$ @6 p: J) m* P0 t! r4 y# S. ?1 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)3 v; Q  A9 P6 \# N
set j& {# B4 x# G/ K' i% k( \
( j + 1)

/ ?/ z0 v5 l. ]& M! y* o, I) Z]
5 q8 B* m% r3 qlet k 3
; H7 W. c% [# x4 F3 a8 [3 Y" a2 glet power 0
5 [* D9 w* X8 v8 Glet local 0
& `5 G' `+ T: D4 f# Y* f0 n  i! vwhile [k <[trade-record-one-len] of myself]
) r& }1 H9 ]2 n# M1 K; @! j- ~[' O/ z2 M; `- m1 G7 H1 U
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)
7 V3 d/ V6 n! X/ e9 i0 ]set k (k + 1)* g  l9 @. H/ ?; o$ l& C/ }- E. a
]
3 }. ?! `0 t" T$ P  ]: Wset [local-reputation] of myself (local)$ o( Z* O% [. G% M  U& f( D" }
end
  t6 F7 e/ ]  X7 X; g6 K3 ^) H
% ^/ n, U: F: d- f- {to update-neighbor-total- N8 r, z1 l" ]: w

  D1 c# \6 G, v& k7 p1 M; ~4 \if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% H9 \5 U& U1 T6 U% X8 v6 Y6 H' W8 V$ x$ r
9 w9 j, J" l8 d7 R
end
  @1 X  r- A7 O. p+ l, P5 r, |1 A
6 r* P9 n/ J' nto update-credibility-ijl 9 K) W, W3 {" Y' m" K, _
: O& [/ \8 F! T
;;
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。
7 I8 o- a% c3 p: f' Hlet l 0
* ?1 c6 W4 H6 j; U7 dwhile[ l < people ]
& x" q0 u% P5 K) Y2 n;;
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- p. I* k, _- a
[
$ F. V" M8 |$ D# y  U6 z% elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 B) V2 L9 O: ]8 u% h3 Dif (trade-record-one-j-l-len > 3)* Q) k1 t& B- ?
[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
/ S/ I* o7 b5 [& e- O' A1 Plet i 3/ B' V+ H/ e% _# @7 z/ C7 [) P
let sum-time 0. K5 Y0 {4 }; ]. I8 }) r
while[i < trade-record-one-len]/ L  T) p( f- I3 w
[
8 o- Z" V3 t' t0 n9 V  lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 O' `. c8 O. X# L5 Y6 [- |: a. U6 {set i
' Q) U! e0 I2 K6 J! O8 _  N0 b  @$ x9 P( i + 1)

! S: p2 {; _$ d6 D]* O) E7 r: }8 G: e  O9 A
let credibility-i-j-l 01 s6 d, S( l8 a. _3 J1 E0 f4 q7 b
;;i
评价(jjl的评价)
  n1 v' `9 e' a3 b- Wlet j 3+ l" b" Q) [; {: R. I9 e
let k 4
' `/ j% P. ~5 m- l5 C7 Fwhile[j < trade-record-one-len]
6 O8 H: z; c& W: `" \# m# T[* A) I* J, `! F0 D( g4 ~/ N+ B2 l& b
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
8 E+ r4 i( K7 W& A4 c! z1 F9 rset 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)5 w, g% U) Z) V2 f7 P
set j
7 n( i1 I) P& j, H1 A4 G: S$ H. t( j + 1)

$ v' X3 l6 W2 @, d' r]1 @' J  O. C% a+ `$ D8 E. S
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 ))0 R5 q; Z, X6 ]$ {

8 y3 h- D/ b8 s% b: w7 O9 ?! s
3 C/ H% d% G4 P0 A7 `2 k, F
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" q. @( {- Q% c* _9 X1 E;;
及时更新il的评价质量的评价
8 ~  R' z; ~" I% q! G: Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- Q% W. A4 S3 X- f# m; n4 z
set l (l + 1); z  b8 H7 G% U3 n0 v2 c/ \0 Q
]4 [) z0 Y& @& s- g( M9 `
end0 T5 B1 \% ~6 u

+ ?( i2 F* g! q# Pto update-credibility-list3 T4 ?, q3 n) ~* f( S% c& f
let i 0
% m& c3 `% `, `: o0 @1 Xwhile[i < people]* o5 g/ y( `4 }, n% M1 @2 e
[
- y* O" d& |4 c* {- V" llet j 0( j9 f/ q+ P8 l
let note 0
* R; V' C: r" C! [9 d, \: _1 Q2 Mlet k 0, J+ t4 U/ {' k! z( `' D& x
;;
计作出过评价的邻居节点的数目) U4 g' l+ B: o; x( j
while[j < people]; n/ t- `* _) o& _* j( [! C3 z8 c
[, Z2 q; x0 m5 F( \. e
if (item j( [credibility] of turtle (i + 1)) != -1)
* l" A1 v, ]# `, I/ m;;
判断是否给本turtle的评价质量做出过评价的节点; {' C. T2 _5 O( q  H  d& N$ N% Q
[set note (note + item j ([credibility]of turtle (i + 1)))
" `) J) ?- d% X5 N$ ];;*(exp (-(people - 2)))/(people - 2))]
' M& e/ b8 }0 y/ _1 s, L
set k (k + 1)9 b6 C/ P" f: F, O/ }  v
]* o- m: @  f4 t8 }3 d
set j (j + 1)
% j$ [+ Q+ ]0 D]2 c3 Q9 e+ t# }( N) \0 x
set note (note *(exp (- (1 / k)))/ k), |: |% k8 g6 L! f5 q
set credibility-list (replace-item i credibility-list note)' b# ~% Z  V* T5 Y+ P6 Z
set i (i + 1), g3 ?1 z( E8 q* l8 [( e, E/ |
]% A6 ~1 R, }  D* k
end6 J/ h  ~( k6 r/ |$ `6 s+ O9 p
$ n/ `% n* {3 u, n
to update-global-reputation-list, l( m3 B' B+ @' l
let j 00 W: f, R( y3 x. i
while[j < people]
- v& F- D6 c5 {& n9 t6 O- q[* D0 E8 R$ v0 x  r0 j; `9 v/ s
let new 08 w2 V( t" o" P
;;
暂存新的一个全局声誉
5 f+ z4 M3 ]$ j. k1 wlet i 0; [5 U. U( g) q0 |8 _
let sum-money 0
4 R8 Z& q' k/ b) z  Slet credibility-money 0; y" I# I' v( o5 U; g7 J) n
while [i < people]/ p( M5 S+ }+ s/ T/ {1 A
[% K  z) Z& ~  B8 Z' }$ `6 e
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))  [3 r; u$ W: N. C4 X2 R7 f/ B
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ }5 j4 b" x$ D+ o, ?, V. w: o; D9 Cset i (i + 1)
( P; u7 Q3 F, l8 @& z4 U- K]
1 E1 Q8 ]) H6 T2 ]6 Zlet k 0
* g/ F. F8 ^( M/ ~+ G6 ylet new1 0
0 `( W3 g  i6 s/ x7 rwhile [k < people]7 Q/ \9 b; w' F1 I. P% s6 j9 Q) ^
[
. I1 _* e- ?5 B; N- |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)
& V+ n; E: G3 ~9 v  x0 i& yset k (k + 1)
; U8 N$ s$ F# q# S" o]7 H+ l1 y6 V# g) `; q4 Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 m  J- F, [7 A& P" I# [set global-reputation-list (replace-item j global-reputation-list new)
( N9 w! W, b9 s, ?6 c% n. K4 d. _8 S! Gset j (j + 1)
! \/ {2 B1 z& `# h/ v6 U# P]5 Q7 K2 h* v3 s9 D4 V" ]5 P& F
end: r' e0 u/ b, ?% p: E
8 x* }3 X' D; M. C! u- Z# N- t  O

) C% I/ B: z: u/ H) K
7 N) b4 p5 C. M2 b# {to get-color
/ Q5 N; W* o5 Z3 d, |7 {# A
* o! K' q' z. y* n* Z7 Z0 Wset color blue
0 B- w% x: d* u1 Z
end
! j/ Y0 U9 P9 d
# s, ]0 h! v3 }to poll-class
& n, |0 R9 t! W1 j7 `end
( _" Q; J4 f& ~% _7 w* R% |( S3 G! b3 o! _4 ~
to setup-plot1, D& T  |* B7 K3 m/ Y% k; U
6 x8 y2 j" t2 K* ?1 \: w" D: {
set-current-plot "Trends-of-Local-reputation"

- d4 y) F7 w. D: Q& K& s
! C, e% @7 E8 ^; F' n3 J; \- W% V" jset-plot-x-range 0 xmax
% {" f) e0 @! C. Q( A+ h' h/ _4 L
' e$ `; I" ^7 W4 ?4 t  P
set-plot-y-range 0.0 ymax
% I) B3 ]% s: t6 C, J; @6 E2 c
end
; h4 P+ X+ _& @2 {  ~  q0 a- \, y3 }0 x  o
to setup-plot2
+ u& @4 E4 D  g, O' @6 p2 r1 H% v, I* `- W. H
set-current-plot "Trends-of-global-reputation"
* g* ~, e' r5 k
8 G/ a! l; s9 G' E* {* a: A
set-plot-x-range 0 xmax
4 }( j; e/ A! n6 c- h+ ^8 @
* {" e1 Q$ W* |0 V
set-plot-y-range 0.0 ymax
1 Q+ o6 o8 G" C& i7 w! t. ~) W: {
end" K+ V. b2 ?7 o9 x3 W( @
$ |- a) Q+ g' T) `
to setup-plot3/ ?) x7 \& t* V* a$ n# ]
0 \% u. N2 Y; N' P) r) e
set-current-plot "Trends-of-credibility"

" u" l( V3 P  g  n# I: g5 [0 L& V1 V& u$ D6 N. q( b( b9 _; D
set-plot-x-range 0 xmax
( M, i9 w) l8 Z. m& l! T; y$ \; h7 P
6 \- u& }; }9 p
set-plot-y-range 0.0 ymax

  @2 y$ X" ]! i2 K  aend2 z* [! V+ d* Z7 c' e
6 o8 l8 ?, w: G& i3 ?9 A
to do-plots4 a; ~$ ^- d2 `$ H3 ?$ T: I
set-current-plot "Trends-of-Local-reputation"
5 q  \( F7 X. f# dset-current-plot-pen "Honest service"! s6 S/ T" l# _( U! Y4 u
end
2 J/ \+ O+ J. a3 m9 d: q6 `, B; i8 ?, b: G
[ 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.
& R+ q( U4 Q/ S
: Y. M" D" g" b6 j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, 2026-9-21 21:00 , Processed in 0.021298 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