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: 12240|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:
; i4 B- A9 ?$ N: Uto do-business
5 Q  B6 z# N0 w# i3 U7 O/ B# _* h+ x, D rt random 360
+ o3 g: V4 m  z fd 1
3 s4 U- q4 g, F5 B ifelse(other turtles-here != nobody)[
6 U# e# a& h/ Z! B7 M, w0 Q5 i( _7 w   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./ I- k% {- m( y% \6 M
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    ( ], `* O) J2 q$ T3 D# \
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
1 z0 }. e- \2 ?+ S5 l   set [trade-record-one-len] of self length [trade-record-one] of self# I& x% G4 A6 d& s9 K
   set trade-record-current( list (timer) (random money-upper-limit))" m; B8 m( k: q
5 J& B3 n7 ], d) B& a' @
问题的提示如下:
+ i# v) v% H. I  v, w9 d$ y3 t- Y: }; g5 x) B: m9 Q: C- X" Y
error while turtle 50 running OF in procedure DO-BUSINESS
; ~  ?6 P' Z4 \2 t. z9 Q, J8 n6 t  called by procedure GO
# u) r  J+ c( A' D6 w! `3 HOF expected input to be a turtle agentset or turtle but got NOBODY instead.
" U5 X! Z, @, R' Y, u# n
(halted running of go)" d  l1 G. e; \' _

* }7 ]1 ]) Y* c/ t$ L% Z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~~; C) ?, [5 j$ G  ]& w0 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
% w) y+ b. @; ?2 L& b1 Uglobals[
9 O- i  F; ^7 Z- X6 P1 F1 nxmax! G/ o, ~" b( J! u
ymax5 E% @! A9 k9 f# U& N8 O  \6 R
global-reputation-list
4 Z, h: m( _6 s+ {5 J9 f1 a3 ?7 G. ~& l. Z9 p  N4 s& l4 [8 X5 V- i6 j
;;
每一个turtle的全局声誉都存在此LIST, y% u1 c* e( e: N8 b7 |! J
credibility-list! m! x' ]2 u+ X2 c1 Q# D6 k& q
;;
每一个turtle的评价可信度
0 b/ t: _/ |% O1 ?honest-service
6 x: x) T; N& H4 r+ U! a" I* qunhonest-service$ t7 c* I' d- ]( q9 T$ [) m
oscillation
/ P/ [4 _1 X8 Trand-dynamic+ R  N4 u3 w' y- L
]
( C: |, A9 Y, Y2 O
3 v8 u7 f& o& Lturtles-own[
. J) f' c; n  }3 Ntrade-record-all  B0 w( c5 F* h) j* ?) B% Q
;;a list of lists,
trade-record-one组成
' k5 X* ]8 r$ w, A+ o% [* O1 Htrade-record-one
) W0 V; l7 n6 v/ w;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
( \& U* P) ^9 N" |( \1 Q) o# m; k( Q, `8 l0 y
;;[
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]]
, M7 r2 r: x8 K  t& btrade-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]
/ _( w# @3 m: k1 b/ Z. hcredibility-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
" T! P( m/ Z9 c" E+ l, Mneighbor-total
% q" ~' d% t. n* Y  B4 ]! N% O;;
记录该turtle的邻居节点的数目" U$ z; e; T' u
trade-time6 G* r; i# z, n1 q8 B8 G& C
;;
当前发生交易的turtle的交易时间4 N9 i6 G4 j0 s/ g! ~: ~* a
appraise-give
1 u: B6 p# {/ U; Q8 o6 L# @;;
当前发生交易时给出的评价
) H; Y1 K; E" Z# V  P- uappraise-receive( f3 m0 [' ^5 R2 ~% ~  w/ L1 h
;;
当前发生交易时收到的评价
* Q0 x+ g" J2 b7 U* v# cappraise-time% i4 |! x% R  o+ R" _9 Y  ?# _9 ~0 @
;;
当前发生交易时的评价时间& X+ ?" I' d1 N' A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
' o5 V* g! H% ~trade-times-total. j/ g9 F' r/ X. {* L0 `, g& U
;;
与当前turtle的交易总次数
6 L! y1 N5 ?8 l1 q" y" n1 i& otrade-money-total  @9 `0 |# ?2 v
;;
与当前turtle的交易总金额
0 Z/ V4 Z+ }' K& x7 Z; X/ v$ [* glocal-reputation; F. k* q; I2 v# Q
global-reputation4 o  x1 Y: P. P1 [& X2 W, i% J
credibility
3 X) w- g/ ^- ^;;
评价可信度,每次交易后都需要更新
$ O$ \% m) h% H3 }% s" ]credibility-all
9 L  O! p- w7 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
2 v+ x+ ^& i% h2 `2 ?3 S, C  Q$ `! y
;;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0.52 _: z5 F+ F! \5 ?
credibility-one% Y2 v, L% j0 @
;;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people0 b! r! l6 P1 R. b4 ?& X4 v6 o8 k
global-proportion; O5 ?; z; o6 f1 j
customer
9 x0 p$ E, S' r* m% e# G) s# Qcustomer-no' w2 K: n2 y% v" g0 ~3 Y5 @
trust-ok
- J# x! l: d6 r2 K4 Xtrade-record-one-len;;trade-record-one的长度5 x# X% s! n. ?
]3 T9 ?* X5 k0 W( ?8 J( s6 V+ Y

) M( M4 m- [# e6 }( m+ B% W;;setup procedure
6 l9 f4 R) l4 W& m" D* s8 O6 e/ q& I, ]/ e; u8 E) J0 m3 @
to setup# E/ D( S2 R* J3 H6 O3 O

$ f7 }5 t9 N, u1 A1 z1 aca
8 A$ N6 g; t" Y- o# g

) X& {: E! p; A( iinitialize-settings

0 h9 N3 }- ?. x, T3 _" f8 e$ f0 l
+ I0 O* b4 m" K2 v9 {crt people [setup-turtles]

5 {8 Q6 n. ]3 F4 W4 l+ w& v* v. e* b/ r0 f2 @  V: j8 b
reset-timer

: ~* @  a4 j. d/ x6 x7 y9 L( Q& B" W% r5 O/ ^
poll-class

; s6 t: ^% r7 J% c5 ]2 I' M3 E7 x6 n  _" {7 @8 N8 J) A
setup-plots

) t3 Z* h: M8 q* g) E5 q( i' G$ i( g3 }/ u6 R, v, k3 _
do-plots

2 n2 t& o, [' Tend" j8 H0 h5 g4 Z$ G  L
- l8 G$ W" x; C- N7 c
to initialize-settings
! i& E# d1 S. l$ P- G, T8 N% r8 Z
set global-reputation-list []

  ?4 x3 _/ o* s! J
) C  V7 x3 d/ X% `set credibility-list n-values people [0.5]
  g: m. F, u. {: e" y6 {/ c2 _; h
/ Z7 m" F5 b! n: A) s
set honest-service 0

6 {$ S* p8 T; o8 e- \5 X7 g  {; i: m+ D
set unhonest-service 0

8 @& U1 c1 R! M+ i( u5 |( r) |
  |9 L  J( D6 V3 _+ cset oscillation 0
; [7 o& U# Y4 {1 \) r; W

9 f1 i# D9 z* j3 `, dset rand-dynamic 0
- c( E9 p- a* C: u, p( D
end- ]7 F' T5 @2 d: l0 d

( X0 ?6 [8 k) g" R" P! H" ]to setup-turtles
' ]. D" M0 x  M# `1 uset shape "person"$ _: R# u  A1 q/ P
setxy random-xcor random-ycor  @6 W, K; o6 F  o6 V
set trade-record-one []+ S9 u& d1 h( L" W2 C( D5 ]

3 W) O/ x5 a; bset trade-record-all n-values people [(list (? + 1) 0 0)]
0 U" t. G2 A* r% v. }& ~% R3 V  s

1 v& y7 r+ T2 N0 E8 Nset trade-record-current []
/ K' X8 k& h& S- I, zset credibility-receive []5 j; [3 k1 L5 {# K9 B' g$ L
set local-reputation 0.54 e6 ^' r) |7 B, j, p0 x  y( O
set neighbor-total 00 Y( d  z! F9 D
set trade-times-total 0. z2 x2 P3 `2 G9 L4 G+ X7 L
set trade-money-total 0
# O0 k7 c( O0 n4 Y1 E5 ~' Q* p& Tset customer nobody
8 g/ H6 I: v* W1 y5 rset credibility-all n-values people [creat-credibility]  o1 o% ?3 d+ c5 J' z
set credibility n-values people [-1]
, i, S2 r/ q; e( |1 pget-color
- M4 }5 \9 i7 k! z

. J2 O2 A6 R5 M, B% Zend
4 q/ N: e, G" q/ [' H) _1 q
) N7 k- P2 i# `- b, p) cto-report creat-credibility
5 V. Q& q* ?6 k1 o; Y; b9 oreport n-values people [0.5]5 r. M9 v% t7 x& [& ~7 u: s
end
+ H" u0 x5 w% I; V* ]+ i" ]7 @) y3 D2 ?
to setup-plots
$ C# f/ B' A2 h9 ^2 w" H
5 o: T" ]& y+ L, I  C( ^9 h: \0 eset xmax 30
/ Y  e8 W- y, u/ f# j
' O* E5 t4 s9 e$ v. b5 V( m  U  a  z) \
set ymax 1.0
; N! U( _4 n+ V9 ^( \

$ |7 Y) P% B1 H# Wclear-all-plots
7 n2 f  P3 v' ^4 u0 [" F9 d

# T  X) q. |6 L% _; R0 e1 ~4 s  z4 s' ?% @setup-plot1
) D+ b9 S( n+ N! V  V7 k

, c. l; D6 ~7 U. N$ Bsetup-plot2
) u+ m2 e0 T  p% l! F
: F1 F4 x) D. U0 ?# P6 Z
setup-plot3

: o$ O7 F& W9 Uend
; U1 j( F  v8 a8 u0 C
4 S+ ]3 Z0 o' w% l3 f0 };;run time procedures" x$ h9 P- G$ [& ]% W6 b# @. [
  z$ G; H' k8 A8 }( p+ z$ F
to go) i( ^  b7 Y1 Q! e& _
. z* k( U) l- ^7 v- W) a) b) o
ask turtles [do-business]
9 v! d( J0 `! D* n) c8 f! t. Q
end
* {4 M% d8 M" L, {  i4 J  b! f8 j( h% K: l+ g
to do-business , `" H# U1 O3 }
9 R  e# I" r3 j4 |3 m! Q

- D& ~+ N2 i8 i. j" [rt random 360
; u" F8 M6 {1 O! K6 w

5 ^% \6 S' H9 }2 n& y' P4 S6 o" c- sfd 1
# a' T. |0 H0 F& v

4 Z+ C9 Y% j! hifelse(other turtles-here != nobody)[

+ _7 ?! L2 D$ u9 ]/ J. v
* D( C+ h0 K) B+ _2 Mset customer one-of other turtles-here
6 m; a( d, O) T$ a, E, h4 @

# u5 E6 k  }$ S9 r/ v- H;; set [customer] of customer myself
( V+ {% f# Q, w7 J8 X3 M
! L  ~) {& l4 t
set [trade-record-one] of self item (([who] of customer) - 1)0 J2 [0 l: u/ o; |( M; U
[trade-record-all]of self
2 s* b4 [* R8 l! I9 L6 i# `;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
8 o- p# G6 q2 \* {6 K$ J0 B2 |

; o) d( t" o6 k* t6 X7 C4 tset [trade-record-one] of customer item (([who] of self) - 1)0 S0 @1 s+ W- r5 y
[trade-record-all]of customer

5 p4 j9 o- G; j9 C3 k$ U; C7 b* b5 O+ C6 E" C; {! r" ~5 r* S
set [trade-record-one-len] of self length [trade-record-one] of self

5 G& S# [- C5 X, B9 i% o) Y9 O* B; B& ^6 ]. L' |( a5 w
set trade-record-current( list (timer) (random money-upper-limit))

* k4 J& y9 Q. Y! O& x7 z- i6 j: {) x: \5 |3 ]; I
ask self [do-trust]+ B& T- x8 D4 w
;;
先求ij的信任度
8 E% g8 j) z* R* \9 l
6 j0 K* D! ^! o6 d" R4 q. C* cif ([trust-ok] of self)
; _4 F! W2 [* o- @9 y;;
根据ij的信任度来决定是否与j进行交易[
! B' e* k$ ]/ y% B3 i  zask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
0 v5 u$ j9 l1 S- p. X
$ _1 g! ]6 T% W/ k5 b[
1 W0 F* R% J+ G  l( h3 R! ?9 r
1 m3 X: t$ g% Z/ B9 x
do-trade
; d% T& h/ P7 H
" }" _% Z+ z' X! N% u" X
update-credibility-ijl
* M5 Z; K7 O7 x+ T4 ~

" V3 g+ p8 Y$ Q* Z  V! Z. V# Hupdate-credibility-list5 c) W6 m' K% N+ ^* b3 W  E" j
& f$ }! M( M* g  R8 ^" M

& c' U" E4 b4 W# N9 v7 Qupdate-global-reputation-list
* E' V/ V% z: b/ j  J( n
3 s" l9 k+ C- {9 Q( C
poll-class
: d! S$ l9 n8 T0 z3 ?
, S' T; O+ {3 N% k( e+ i
get-color

" I' U6 i& X& m1 e5 Z% M: C& n3 g( y/ i4 z& ^+ W( V, P2 N8 e
]]
+ j  F6 p* f7 \& H3 a
8 U' r/ P; g0 c$ W3 _;;
如果所得的信任度满足条件,则进行交易5 _  j& S9 H0 ]1 k

$ u  z8 J5 d: [* \[
$ V5 }9 h  f0 z7 c6 {  k

0 @, j% o# U5 [* x) W% vrt random 360

0 L! ?; A4 K2 p  M" Z8 a2 Y% Y% q) y
fd 1

. S: W' O9 T" l: H' x" e( f" Y* _  `3 I/ n* M6 x1 Z5 H) K8 D0 ?: j7 i: v
]
; t( |+ z6 A- \3 Y3 t

. E  B5 D; A1 P/ B4 y9 U' [end

' p8 j8 i* i2 Y7 }$ g  E, Q$ P0 B6 S6 B$ z
to do-trust ' i) H. s  Q  S1 U$ j
set trust-ok False
3 C) c% @) T" o& o$ Q, s
( S1 _& y# F% T+ r$ G) C

* x$ j5 l7 G! n9 S4 h# y* |let max-trade-times 02 f$ `- l3 Q7 Z" @2 d5 z9 K& _
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! J3 x" u/ o6 |0 r! qlet max-trade-money 03 ^$ e+ H7 o4 r: z; i3 O3 e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 Y9 y$ N/ l) F& tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 X" X# {9 I( B8 _. _1 Z
9 I' x" ~6 v6 @" o" `7 x
+ `  `# E' s1 N% j. v6 }) {( U
get-global-proportion
  [1 G5 O: D) X3 U" Plet trust-value
; T& `* d( N) D3 G1 r% o: O2 S/ m0 Alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& y1 m' p8 y1 g7 x0 A* ?5 Q! E3 Q
if(trust-value > trade-trust-value)
' i8 k9 W, L6 b2 _1 B9 ~[set trust-ok true]
, f' R5 t2 @7 E$ W( Pend" o( Z) @$ g7 P% W- D4 M: d1 U

7 T/ d6 a9 K# r0 [: ?to get-global-proportion. ^6 \' G: Y0 D6 P5 c$ g( p
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 Z3 \9 x' y- s' V[set global-proportion 0]5 f% s' P# j3 E0 d
[let i 0
# `. s7 k$ J0 r( L/ Glet sum-money 0- G. E+ [: @" Q/ x# T
while[ i < people]
- ?  i6 Q( c# e" i9 h% T/ e[
7 m0 T! @- ~- g  q/ K  E* pif( length (item i8 [( |- n8 K. u6 ]- c) e- Z
[trade-record-all] of customer) > 3 )
5 ]0 \3 L9 g1 v  `/ y5 k  W
[/ \8 l# B7 |! M; _% f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ _/ {# J( B8 S9 E" i0 `$ c]
% v! `6 C. f" c( I+ H]5 c8 E6 N8 U: o2 D- `
let j 0
. q. Q% C  L; Blet note 0
" w* `2 ?" {, e2 rwhile[ j < people]
/ G7 }! I6 k2 S1 M6 c1 o[
6 d" ?& m  X9 p4 [$ rif( length (item i' g5 X' R0 z- z1 h+ X1 ^) ?
[trade-record-all] of customer) > 3 )
% H6 G7 g8 Z9 c5 Z" C2 B
[
3 `9 K+ y. T. k7 g" c& Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 s' P; r5 c6 E! t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 M' i# a$ D3 Q6 }# L" V. j& U) l
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 m1 O" ]- \0 E, F, P" [3 p]% _  T' p+ x, c4 F- Z( h3 K
]
3 Z4 q* y$ b; B) I4 k) k3 v, B* [set global-proportion note
/ z/ k, ^* z( E1 V], q4 l/ ^; ^: u
end
$ O# L+ K9 L* [
! j: Z/ E  ^# v; y# g6 ato do-trade
8 Q! j; W& c: n; c! c;;
这个过程实际上是给双方作出评价的过程: |/ c( ]* d0 _8 u! Z
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
4 B1 t& K" Q  o! lset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价5 _/ \- s7 P9 `) k+ {/ f
set trade-record-current lput(timer) trade-record-current
8 Q4 K$ r9 y5 D# q0 G;;
评价时间
6 b4 o0 Z; N* f, B+ t" s, C" ^ask myself [8 k! f5 O: L: \$ \3 U/ p; X
update-local-reputation
8 q4 K: I1 R; Tset trade-record-current lput([local-reputation] of myself) trade-record-current/ T7 C/ t( R' \# ?& z: q
]
( _  q. ^: E/ K% u9 M5 Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 k( ^  f: I9 j# G+ J( B3 w;;
将此次交易的记录加入到trade-record-one" w5 I8 S  L, ^
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
  G/ W5 X+ f$ O6 b) d6 ?. j$ J9 Rlet note (item 2 trade-record-current )
% H/ [$ W. I; w1 K& p% N. Yset trade-record-current& g$ B9 N( I5 u0 N8 N; Q
(replace-item 2 trade-record-current (item 3 trade-record-current))

! R9 ~9 Y2 V3 L. ]2 ]( K0 aset trade-record-current% \! t: r* O) y! i. B, f
(replace-item 3 trade-record-current note)' i  }3 V6 |) T

; Z' o1 L' s- \$ y8 J7 B* U9 w

( C" j6 Q% D3 d$ o7 jask customer [
' {; G0 q" d' aupdate-local-reputation% L7 \( v$ f. i( l
set trade-record-current2 x! ^- R) E6 i" e- ?7 S5 i/ k3 a
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

' S' H6 f! u$ ^" I  [. x7 V9 z]
  {- R- @2 z) a9 h; H% i9 s/ S' D0 a0 B

+ L5 f4 _1 n& n- ?0 \' h9 s$ A& Lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 n' L1 l! K* s  A
0 p- T0 f/ ?" W0 P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 j4 F7 |5 t" E9 W2 I9 R9 U;;
将此次交易的记录加入到customertrade-record-all3 l; m& {1 C* x
end" W4 \. @3 R6 f: M: {' y) p
% r" l& d  ^2 R! t
to update-local-reputation" W/ F8 K5 r+ b& r& p
set [trade-record-one-len] of myself length [trade-record-one] of myself
; m/ z. F! a6 ~$ `* o2 ~; h
4 _8 k# Y1 W% u# F1 N# @. }% C# O  ^0 m1 i( X/ W: n; [
;;if [trade-record-one-len] of myself > 3

2 k- T' j" h# k# gupdate-neighbor-total& I7 {  _5 M4 J& a- F
;;
更新邻居节点的数目,在此进行
7 {. A6 w' g/ }9 z8 b2 N3 Dlet i 3
9 }2 i0 K6 v7 R9 `2 |let sum-time 0
$ o. t6 Q/ ~* {* z( D  x" ewhile[i < [trade-record-one-len] of myself]
6 _( y" B7 J4 c4 B[% \& `2 J$ B6 _7 T- c
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" A# U0 z- ]' [0 T4 [
set i+ B3 C8 X$ i% b& e
( i + 1)
) q5 u: K. a0 n8 ]! d+ n
]
2 g) p0 |; f$ o3 j) g: D$ D; Ilet j 3. W& ]& u0 e! c0 t, _
let sum-money 0
- c- Y4 i) R- [  E: T( X6 D9 Pwhile[j < [trade-record-one-len] of myself]" y/ o/ V. J6 V- l, N7 C
[: k/ h; N$ l/ N" e0 w- F. 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)
0 U+ C( N5 K+ S4 |9 P, Y% gset j
" I2 H  T! B, D) X) M: h. T  T( j + 1)

- u8 ~* e, e' J: ?3 \* f7 e0 F5 w$ S]
: @8 E5 I5 t% _+ \let k 3
! L+ m! f3 v5 |; l# |2 M: K$ jlet power 0
; h) m$ Q  h: ^- O) W/ L/ nlet local 04 d% T$ D7 \. [; j+ n7 t; r
while [k <[trade-record-one-len] of myself]
5 {  `7 O$ ]+ H1 C8 G, X# c[
% @- \; E; `/ K) G8 m& ?3 Tset 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)
3 Z8 @6 @7 O( n2 K3 Y- C6 Oset k (k + 1)9 q' e8 h. N" }3 ^  s8 P
]' [9 p$ [5 z/ `
set [local-reputation] of myself (local)
/ e; w' f& v6 [" n9 n, A( cend+ [7 I2 a- E5 u7 S- r+ ?
' I# i! b2 d1 |, Y' p* q
to update-neighbor-total
+ T2 t) C1 M5 G7 H% {3 S
6 a3 n! V$ N# f, _% t6 x& b3 Q0 @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. Q4 t5 \( C  X& G, _. {
0 D# N  Z) W( ?# y. \' L. R) c
! ]  C  G/ }/ l; `. K) T
end, E) |$ J8 D/ q( k1 }7 s. r7 |3 @% l9 j
/ a0 p( B, P/ J' `# e3 |* @
to update-credibility-ijl
" o8 G$ k' e: ?" s; z  T" P5 S! I! ?) C2 d! N$ a
;;
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。9 R8 k+ S. t9 X- \
let l 00 \1 F  p7 ^3 U9 V' h
while[ l < people ]
4 S8 Y; m1 T! y;;
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2 S0 Y8 {. @) |4 }6 z
[
9 B1 X- C2 z1 |9 olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 f2 e8 S8 p* A* q" t: @( i
if (trade-record-one-j-l-len > 3)
5 M6 V" V# @  U, t[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# n" w% s; g4 e2 x
let i 3
- I* }) k* [4 v# Xlet sum-time 0: d. r9 M  F" K$ O
while[i < trade-record-one-len]
# v3 [1 w4 D1 L% E[
( I& A$ {% K& K$ }0 f) w  i9 zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ m0 m+ Q- U" g) _4 G7 ]
set i% Q/ q3 I, ~: e( @" q9 A  a3 x) V
( i + 1)

: b! D) e2 N2 J/ J" O]
8 {8 p- d+ r# k* Glet credibility-i-j-l 0+ n" @6 v1 `$ g* D9 J9 Q
;;i
评价(jjl的评价)
& }3 X6 W2 g5 u9 llet j 3
* f9 h) m0 I( R- S3 e, l4 alet k 47 p9 r# a# e$ @
while[j < trade-record-one-len]
/ e! o7 j5 J6 Q* [2 R6 G. h1 t4 O[& l" p- ^) S/ l6 D; A
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
( i$ Z  e* U/ ~) O' I- Tset 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)) d% u) |/ D% c1 s7 y; e. k
set j7 m5 t' C6 }  ?; j; n$ J
( j + 1)

2 M) B7 v: d& s. ]  p. t]
3 J  G, e  c5 L% S9 d6 c, Pset [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 ))) h6 a% q8 ]3 b3 L; F" k" ?
  n7 c1 m3 Z) W( ^7 b8 I7 [

1 @, g9 J3 i; Q+ b$ R8 N" |9 @. o& llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 i/ L* A" |" X
;;
及时更新il的评价质量的评价
" J: _6 y/ Z" ?* I# T5 ]" Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 d" M+ Q! `5 T, H8 ?+ Hset l (l + 1)
5 b. p: u' z2 H4 l+ j$ t0 r]
4 p. t3 ]6 V6 z+ x& n, y9 r" Yend) F3 L0 p  y  v

  A& j+ {' l5 {0 r* Qto update-credibility-list+ b8 \3 e- t- ]! [/ r; j
let i 0
' i: o/ @; R: o" K6 ewhile[i < people]
6 c3 i5 a8 N; Y6 T3 r8 @, b[$ T  y+ w6 x8 H( ~& E) z9 d
let j 0
6 K! e. K- ~0 ]  y: g3 [: [5 x& nlet note 0
1 r% ]! I, t2 e. S5 n+ |. plet k 0
: }# A/ z$ Q" @7 h- O  d9 ^' T;;
计作出过评价的邻居节点的数目; a. o1 k4 R. r7 d
while[j < people]7 y- ]6 x2 U1 L& c
[
4 s* }, T& D" L5 S: }if (item j( [credibility] of turtle (i + 1)) != -1)
9 x5 j1 f. E- J5 }  h;;
判断是否给本turtle的评价质量做出过评价的节点
, _& ~! N" P/ J; l+ i[set note (note + item j ([credibility]of turtle (i + 1)))
( z7 O/ S4 w* ~( [# H;;*(exp (-(people - 2)))/(people - 2))]

4 U# O, Q; K/ q( r2 a. _: bset k (k + 1)3 b* H( B6 O& B
]4 C: e7 o0 Q( y
set j (j + 1)! ^0 q# D4 h. q1 }: m
]0 K  L* _! g( @& i8 Z6 L9 i; i
set note (note *(exp (- (1 / k)))/ k)
9 L  L0 C9 S- B' Hset credibility-list (replace-item i credibility-list note)! z* g5 N9 c5 ~
set i (i + 1), G( ?% w" \2 y' f! S# W7 B" l% q
]
* a6 e4 A7 K- @end
; j9 k6 H% H2 a5 l) K
# v7 i+ _, R5 Oto update-global-reputation-list% c; W" C9 l5 I, m( g( T
let j 06 J7 H: j$ E" S( H( H" Z
while[j < people]6 B8 b$ d* R4 Q& z) P  x
[2 E& y0 A" z" U) d- i$ [) z% x4 N2 ?
let new 0
2 }9 [6 p8 N  ^;;
暂存新的一个全局声誉
9 F& u8 D+ a$ N9 Z; \4 ]( B* ?let i 05 n* Y* |6 @: |3 |! ]& j
let sum-money 07 K8 b+ ^" N- N7 q; e1 q4 }/ B3 a! V
let credibility-money 03 L8 u; i- F( I1 [; o* A
while [i < people]8 c1 D9 c1 p5 J1 q
[! y/ o7 k) g/ L0 U$ p) Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ K# G$ k( U. z6 v" j+ P$ D) }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' Q1 W  Q: e8 \7 n/ T
set i (i + 1)- I5 ]' p: V6 p, Z
]
$ h3 c  f" q! s6 Y; flet k 04 ]- D) b+ q  M2 \& v, X
let new1 0
, Q8 {  l% {2 g# e: Z1 hwhile [k < people]* K4 e" ~. k9 y
[
6 \6 t8 n! z1 q* L6 mset 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)
9 w5 P$ s) x5 ~4 F" W- X! P1 oset k (k + 1)8 ~9 }; D- ]) |1 }8 r/ P$ c
]
( ^% o4 m. V: n' P0 oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # w  [* w; l2 B3 D9 b) ^0 {
set global-reputation-list (replace-item j global-reputation-list new): ?! i8 b5 ^+ z5 O
set j (j + 1)
) }+ Z4 n* F! F5 }9 r]6 l/ Q, t/ ~% d# L7 g
end
$ t; {- P- `+ n
2 M. s' y8 \% E
/ z5 m& J; Y9 W+ X5 `# }) e! O
) H* n+ }: I6 t0 R1 b' n" _to get-color* q" T) \$ r/ m' g+ o! L2 ]8 n! x

# r2 [7 j% _# z3 I$ F/ x( Eset color blue

* Z2 H4 J9 {3 V  i" Vend
; b# a! M( l) h  v; [* L- q1 P1 D, d; K/ Z) x8 I
to poll-class
% ~, _0 h7 m, u9 N# X3 A. }& A+ nend5 V/ r1 P, s) T  h- ~* y

5 `/ @: W1 m  mto setup-plot1
0 M2 A  ], B+ a2 _9 H( e: t$ I0 h" l& n  B
set-current-plot "Trends-of-Local-reputation"
) d, I( m, ]- s
& Y- P" _% C( O4 l1 ]" O
set-plot-x-range 0 xmax

5 T" s! q# a4 p" m& n7 R( P( {9 Q9 w+ Q  O; @& a, |0 w. o  u( f, W
set-plot-y-range 0.0 ymax

5 j+ y3 b7 W4 F6 U5 f: Qend# S+ M  P% ?- z7 I) |
! r: B4 `$ L& f" w  \9 D% {+ V
to setup-plot2
$ h1 o% n! }+ l) b. ~
) E. ~# {& `' p+ A1 Cset-current-plot "Trends-of-global-reputation"
4 [5 |) {. L3 Q9 ~' J

4 t! O* q3 }) T! ]+ A3 Dset-plot-x-range 0 xmax

0 M6 ~7 D# ]: F; R* d0 \% f7 W
# n& Q  |: Y3 m, O+ E" ~, O8 Xset-plot-y-range 0.0 ymax
& f* a( L, Q& E4 j# h
end
9 w* [! X; \* ^2 D! `% Z: [4 X
( y4 C/ f- A: w. L! L1 xto setup-plot3
- w! c9 T- ^* m+ u+ ~9 V8 J2 s2 L0 }# m
set-current-plot "Trends-of-credibility"
) `- S1 \2 T7 |0 ]" |
% Z7 i' P; d8 f$ R% s
set-plot-x-range 0 xmax

0 o2 U7 d2 k- v/ ^. A3 l( G
' o& U6 {  @+ W# p- S3 ~set-plot-y-range 0.0 ymax

- w" ~$ L! a" Y3 s/ y% Eend  H5 J( v4 ~# G1 z- `6 r, C
% e( K8 g: D+ Q
to do-plots
4 X8 ~, f# n6 v/ K, j2 \) nset-current-plot "Trends-of-Local-reputation"
4 v5 B* m. W/ X0 ]5 _  E9 xset-current-plot-pen "Honest service"
' w* M) A" c; \- d9 Uend+ a/ G$ \' Z4 u1 \' H. a2 D

9 k- j. [( {6 T2 R% u$ A[ 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.
; }/ q3 e2 r! L( y5 Y; A
- t( ~. M$ N: f8 ~, E8 {, x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, 2026-2-18 07:12 , Processed in 0.033149 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