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[交流] 关于turtle的使用问题

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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 g6 w) Q" a6 M" u+ s/ a; Uto do-business
+ s; M, ~1 a2 J' b rt random 360
5 L: ]4 {$ {, j8 h' N7 P1 \* {0 V fd 1& v  Y2 N" |6 Q* S" v' u* x2 F* t* P
ifelse(other turtles-here != nobody)[
4 n: }5 ]1 O) y   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.2 G+ t+ a) }# A9 E$ Y' k/ T8 M: _
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    " d5 r5 B; A' C8 R" y# \9 A% z
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer# A' |# _, A7 L. ?& C3 Y
   set [trade-record-one-len] of self length [trade-record-one] of self
8 c8 q! Q" F3 R* W& m   set trade-record-current( list (timer) (random money-upper-limit))
% g8 l$ `! L, k6 {* w" X: X% x$ ?9 m  z' v% \; X0 W. t
问题的提示如下:
; G* e0 B, `1 I9 P  X# `3 P# x( P3 A7 c! @5 i$ Q5 v8 {3 F& y
error while turtle 50 running OF in procedure DO-BUSINESS
& `: f& }' m5 z4 r  called by procedure GO8 ~6 O) p& V: X/ @' @3 v7 f
OF expected input to be a turtle agentset or turtle but got NOBODY instead." i* @, K/ l0 A# x$ k+ I
(halted running of go)
- r3 G3 m$ l4 E. I4 x" D1 d4 [$ A0 i5 \. }4 s3 Q6 V& G5 E4 |( |7 d' C
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~~
. A; D4 z1 x' K5 u2 c0 b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.

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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
5 v" l; y4 N) U0 B' aglobals[
. S& a! b# ~, e1 J0 q; p; [& k! `xmax$ r. g% |  o6 m6 s( W
ymax5 ^8 Y. P) Z- o$ `( F- @  m; [
global-reputation-list: x! s+ X! A9 {8 Q/ [7 F8 e

- N* P% c: u* X# };;
每一个turtle的全局声誉都存在此LIST9 {8 x) [0 r5 g1 y* z$ X( u/ t
credibility-list# r1 r- M; _  w1 l/ r
;;
每一个turtle的评价可信度
( [) V: E; ?" T4 d  ]4 {3 m5 jhonest-service
) N4 W8 }6 M0 L8 a7 Junhonest-service
9 \; Q: H3 `/ [/ j+ F. Doscillation8 C# J! b& ~4 [5 f, m* ?- A, Q
rand-dynamic
2 I; |5 Z3 U* q; b, R% y]) o0 f" r6 a0 l" z, v* p

* c6 r' h* o/ w1 ?2 h1 k( ^# |turtles-own[
  V: e! h% k- k: v6 K9 jtrade-record-all
! l* O3 O! @( i$ f2 H;;a list of lists,
trade-record-one组成
9 j) ?# G4 W  X  b) Etrade-record-one
4 f  ]  }4 j1 ?. b, E( a; l;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
$ [5 U0 s; \- ?) `7 l5 a
* Z) I  s1 `" F; `3 X;;[
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 o3 X/ b) v) _, k3 Q8 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]  `* t& Y8 k$ x5 y6 X- t  ^  q- u
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
" W& J3 C- L( l3 }, aneighbor-total
: d6 B5 `4 c( V- t; t, \;;
记录该turtle的邻居节点的数目
, ?3 H0 P; T1 y$ {9 @7 D  w, ntrade-time
7 Q9 r$ C' Z- \9 {- X- r. F( `- Z2 ?;;
当前发生交易的turtle的交易时间& a5 U- ~/ U6 e! o& Q8 k4 m- y, X% J
appraise-give
  q5 t( b( s5 R% Y) K7 X5 r. Y* X. P& t;;
当前发生交易时给出的评价
$ I: N' b/ L' v2 m5 s! e9 jappraise-receive/ X0 E+ E& x# c' A9 t& s
;;
当前发生交易时收到的评价2 F, f7 q8 E" y, P6 B- W
appraise-time
1 I8 T, Z( J6 H;;
当前发生交易时的评价时间
" S; O  p: n! F+ A" t5 hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉& _/ P3 n+ k+ ]: }
trade-times-total
, r8 k/ h" i( a4 C;;
与当前turtle的交易总次数
9 x- G2 C/ F! O- etrade-money-total) S; Q' ]# ]7 X, {
;;
与当前turtle的交易总金额4 o3 E) B! F% G8 x  \: o
local-reputation% y' O6 c9 f# `
global-reputation
, B3 u/ X2 }- h; ucredibility
; r6 ?7 q& t. J;;
评价可信度,每次交易后都需要更新( P1 U6 R0 L6 i
credibility-all8 y% |/ o0 x1 j* V3 ?& c2 O
;;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+ ?+ ~& }& C. V% ^3 D
9 ^0 d2 G; j( N) X' ~, x0 e
;;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# c( }. @% q9 Z0 K. l- p% E
credibility-one9 `. |, s$ z. ~" A# i0 P6 w( |
;;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  A7 M2 R2 A" o& J0 A
global-proportion$ o& g8 w( ?  `) ]+ Q
customer
, g' A; M0 s6 `" U, l0 `- bcustomer-no
( ~! I# R  m  Ntrust-ok  ]; s/ L  \' I' B3 n7 ~8 [
trade-record-one-len;;trade-record-one的长度
, i0 n0 L; s& [4 y, N( b]
2 d3 ^1 T) l$ n' x2 p" p1 J! F
* l( {: g: O; {% c: v;;setup procedure
1 b2 Y, p5 I/ A$ r
# }$ P/ S& |( ?3 _to setup/ L/ i! b8 s9 B9 E

- ?* ^3 h- B* l) N8 n" eca

" l: V- u) r9 E) W; N: @  n/ C- p
# k  k- ~% G. ?$ H" ]5 yinitialize-settings
  z- R5 \' |, X, }; E0 }" D
! Z# b2 D6 Q& ~- K
crt people [setup-turtles]
- a/ [: [% p1 u; q0 A
$ x( _& u  t" h7 G( D
reset-timer
, z) ?# m! @" R8 l* V4 v5 A/ f
6 p, R2 {( T: T1 C6 k+ y6 }
poll-class

0 j; F7 T$ r# N  Z" X  w7 o2 h# P* ~4 D" Y/ F. A
setup-plots

  }: `% Z) v( M; O% @' z: R% g' O- x# v4 x* i; [
do-plots
+ d9 k4 G; o& ~( U, X8 P2 J: D4 t
end' p; r2 D2 e' P. v

, J6 N5 ?4 ~& ^to initialize-settings, E  B# i, L) ?

  }4 L0 y; K/ ^4 P5 ~set global-reputation-list []

* O* _3 ~# f: R5 F4 Z5 {7 q2 V& h" H  k2 `( o
set credibility-list n-values people [0.5]

& {7 T: r8 m' h4 U
. H: A% A: Y, o. Q( kset honest-service 0
: v7 G, |8 ]9 I- P+ O+ }
, U2 w0 O* U1 N+ G
set unhonest-service 0

6 J7 s+ ^1 c) E+ s0 L3 z2 ~. p9 U4 ?. ~! a- H# ]
set oscillation 0
1 w0 ?5 t* \! Z

2 N/ G6 I0 l$ \, t: |1 g, p5 [set rand-dynamic 0

" b% J! g# Q2 N" ?9 Q; I$ N: qend
. f* e+ s9 d" [, o& U( W. W
& a& m! V$ p/ U. j8 i! Hto setup-turtles
8 |% j8 T( }8 x* z1 xset shape "person"
" @2 \  n: M; M& `# isetxy random-xcor random-ycor
. o( w* z0 v+ ]6 t8 K) Zset trade-record-one []
* [5 w, B4 ]; t. V7 o
/ j9 l4 g$ L& k/ y7 D0 ?' R
set trade-record-all n-values people [(list (? + 1) 0 0)] ! n" B* d' M" M% f  C
. ~' L5 j# j0 I6 n$ E
set trade-record-current []
) N; @* C- I  r+ {8 A0 R. ?# Lset credibility-receive []
8 ?! ~8 g4 K2 M  f1 [4 @set local-reputation 0.5
" N, \( Q, f( C" o+ w4 V$ o# cset neighbor-total 0( Q) Z" }& `  m5 A# h, N2 C6 ]& P
set trade-times-total 0
* X0 f. {: q: t8 h& ?, p& v* `/ Pset trade-money-total 07 \/ ]7 C/ d; M2 d$ O2 F: \  w
set customer nobody
" Y/ B- O; s$ o% E$ R: W: Fset credibility-all n-values people [creat-credibility]8 s9 S; _. e5 i4 [6 {$ c& g2 F
set credibility n-values people [-1]; G' L3 I2 R5 [  c
get-color
& W% X' \5 ^( n1 \& ?1 m! D8 I

! j+ ]7 y2 {' X9 v- l8 @end
3 L. D4 A7 C8 K7 {8 ?: T7 l
* j: C! ]0 P4 c+ Uto-report creat-credibility% {8 k$ |  G* b" X- Y  q: I' X
report n-values people [0.5]! S( g/ g7 R2 I) u
end  ?9 F5 m8 t  o3 x) S

" f2 X# V5 D/ Y7 G- [# u3 gto setup-plots
. y2 J: G: ^$ D$ Y
, a, O0 H, u9 }! pset xmax 30

& w: V7 y2 d+ R6 k+ k% i' C- v. e( ?% o' \1 t9 i  Z$ p0 t2 K
set ymax 1.0

2 e) u8 Y5 P) c' s4 x+ B" ?, l6 ]9 P. R1 p3 f2 B+ _$ `( j9 i* P
clear-all-plots

" D' M# b& ~+ r$ a# z# _( V' M2 a6 M% @" z6 R; b
setup-plot1
5 X/ U8 D- M1 i- r

1 b5 ?/ @- e4 G; D; o" c3 ?setup-plot2

: p7 G# ^: F* ~8 z. H4 `
6 _* a2 \; E8 a$ Dsetup-plot3
$ \0 {4 w) L# Y4 ]+ B1 t% ?! Z% Z
end" R* F8 A7 ~# p6 _) X2 Q1 x

; B1 j& x& j/ D/ Z# O;;run time procedures
6 Z; W1 S4 P' O8 b2 J' Q. W
& ^* I- ~( w9 l% |& G  T( R3 q2 @- }to go
1 J5 j" N/ c0 ^  D% Z4 a
5 }4 v! o6 l/ t' p( W1 Cask turtles [do-business]
: B/ ^; ?7 `5 m: O1 w: _: K
end
# s9 N' X. s; u- `2 T1 j1 Q+ n* X% ]  J) l# x- _
to do-business
; d0 H/ L0 S/ @" P% d: G3 W

) u0 Q3 [, b; c6 g& y" G% Q
+ _9 @5 f* M- X: M( prt random 360
# B$ c8 d/ ~6 D0 h0 `
. U: n! S- F% C* s; j6 C
fd 1

, b+ d9 Z7 B0 n6 g$ x6 a( G. W' M) m+ ]
ifelse(other turtles-here != nobody)[
% H: }7 y) ]( y0 u% D3 Z4 K: \/ m

+ D! Z% N4 a# ~( S0 J# I1 gset customer one-of other turtles-here

4 f) N/ b9 I3 g; l  X5 b7 D+ C' V
$ L8 R& Y! \6 _3 y5 `$ x;; set [customer] of customer myself

2 m; a- @" e) f1 ]1 B* q, @
/ e) G2 h  }! K# @) w! N; E! |set [trade-record-one] of self item (([who] of customer) - 1)! j- m6 a" `/ `3 N3 _
[trade-record-all]of self
8 @5 \; V, `2 C! U0 h8 v, b& Q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) `7 @" z1 n( o. W+ F: i# n  _

5 w7 J3 D; n1 i1 \/ _* f* N# @set [trade-record-one] of customer item (([who] of self) - 1)
& P& W9 c3 R% I2 E[trade-record-all]of customer
( u) O! f& N8 j4 b

; e' f* E' n( Y( Z; x3 [set [trade-record-one-len] of self length [trade-record-one] of self
; ]  l- n8 S" I1 E/ E' q

/ ?# L+ D* B! b) o8 `set trade-record-current( list (timer) (random money-upper-limit))

5 w2 k  @0 N6 f2 W% g- Z7 d3 W* }7 X4 }+ ~+ f  E# i1 j& Q: _
ask self [do-trust]
6 o1 m7 W4 u! \% w' ~+ Y: D;;
先求ij的信任度
* b; b% A4 W+ t0 Y4 k" J0 S2 {3 R
! q% i5 Y; m' `if ([trust-ok] of self)9 Y8 A/ `& y# {: T& G, l
;;
根据ij的信任度来决定是否与j进行交易[
& \4 r) U/ x" G' B8 Aask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself9 c: p) a: n) o  Q3 D6 M' Z# v: a
4 t4 q& t+ W. l- u) _/ S
[

5 A/ K9 U2 n, E! f$ I# r5 T. Q+ W' R5 o
do-trade

/ }8 a: J: K, }3 t+ I. V0 F5 R' s$ z. K
update-credibility-ijl

$ r% l; p, M  ^* Y( T
* w8 T( s6 B$ m% nupdate-credibility-list
+ g  K+ M8 x7 T) n/ g: \1 Y) j
) s' W3 |% K6 Y* B/ P& ^
% ?  M$ E% h* P% M4 {
update-global-reputation-list
- K2 n* ?- ~/ a( i& _) L

: g8 z; r% Q+ j2 g8 {poll-class

7 z7 F( K' @! O' }0 h) `2 f6 ^9 ^
get-color

4 w, T4 I3 k1 _
/ f/ P7 f" ^) |" d' }]]
$ V% u8 {# E2 r& ?) Y+ U) ^
9 x! y+ d6 z: a% j;;
如果所得的信任度满足条件,则进行交易
. q) C3 }! a. _" e9 W2 ^" D/ z* v2 q
( B7 B" l2 r9 Y& P9 t- M[
+ `( x3 `! ?: S4 t, @; G

/ T* R0 Y* B7 c8 Y1 jrt random 360

  Q! B0 r7 y3 ], i  \- e4 ?" H
6 t* z6 K: {% X1 Efd 1

4 p* Z- ]: _: E1 D1 N* a7 k* X: p6 l1 p9 h' q
]

* x! V3 G/ p) \7 n' ^; _+ e3 t
/ D% E, H0 B9 e" \( F" `# a. \end

8 `; T3 M% q1 g$ Q- Y- ^
+ N' P8 T! S2 D% N6 k4 ]  o8 H* @to do-trust   Y/ _. `, T) K! g9 L
set trust-ok False6 X7 A8 x2 K" E4 I) |' @) d

3 o4 L& s, i8 f( O

; e: u2 l6 w+ Y" _3 a9 klet max-trade-times 0* D) d" n1 p5 I0 n+ I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]  a( Z+ }) ~7 o$ R; d  ]) G; g; U" j
let max-trade-money 0: V: ^8 B6 u6 o  o+ \9 m! L6 i
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! A; ?5 i* N. u" n% xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 G* x/ q( u4 O" O& i
. u- C, N. E; H0 a# E0 v( k
' o! S9 x. |( p% _2 s0 P0 b
get-global-proportion
% Z  Z" J6 z  o+ Rlet trust-value9 b2 k) D; O8 _2 `! r
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)
& u/ S& ^. ?/ k: U
if(trust-value > trade-trust-value)- W8 O- W# a* w+ D6 x  J6 N
[set trust-ok true]5 C5 @" }/ o8 B2 ^; x! J8 |1 F
end* _: u* }6 G0 s3 F  n
3 L$ L) m% `* @
to get-global-proportion
" `# i6 y5 U/ |! Q  E( [# h3 Y3 N) qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 y) P, h% D) D4 N. X" c
[set global-proportion 0]! `. O5 c, R. k" @( S
[let i 0; n1 ^2 p& k- f6 A3 h
let sum-money 01 Q3 P- a9 y& H$ `
while[ i < people]+ H, U* _2 p3 g- t8 {2 T9 {' e
[! c, P5 N) h4 n
if( length (item i' g. K* ]2 x8 A
[trade-record-all] of customer) > 3 )
  k! m6 _$ }2 v  K! K# k+ E
[1 r+ ?) f( ]. T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( u6 C* }' n0 E% h0 j4 n9 p7 s" M]6 u. v& s9 F" }6 l- p& h1 @
]
, N, l& N8 v# ]) `5 ^% Xlet j 0' Z, K, u# y9 A
let note 0
* t5 H0 y2 f  m( L" z0 R* bwhile[ j < people]
: [: |( r8 q$ E, G' w[: N4 P2 u7 A) P+ l/ |
if( length (item i! W' E! S( t' l: N: {1 R) H
[trade-record-all] of customer) > 3 )
- p  A% Z* R3 s/ n% S
[
  W+ O0 E0 x5 R0 difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 L2 v  W+ T" a8 _- d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% Y1 y( F( A  U5 O) [[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 ?2 M  p0 |4 D8 H3 @2 J6 z+ r0 U, t]
& X+ k4 b/ H6 X1 }6 T]
0 {5 S4 `5 o+ o! Q& l+ j4 i4 ]( o5 tset global-proportion note; d: c3 C0 X3 N" K& A% @" J
]) m$ P8 ^( n/ C! \3 j  O; u3 ]
end
0 O# `3 y0 N7 \; C
- B7 w1 U$ M) m7 o7 Y0 \1 X7 ^to do-trade
* b$ Q6 X& R- e! u/ y6 R;;
这个过程实际上是给双方作出评价的过程
( ]: P0 B$ y0 p' H  ~4 Cset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价/ X  a" v. z- S0 C! V! h
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价# i6 W* n. i  j6 ~9 ^+ h' _
set trade-record-current lput(timer) trade-record-current* D% X6 n1 ?. o
;;
评价时间
4 s: v; d, @! D3 p; gask myself [
( X0 g* G) Z! U* ?* J/ d9 A3 lupdate-local-reputation) `* d' O$ O) X) o; C9 ?
set trade-record-current lput([local-reputation] of myself) trade-record-current/ T- \; r/ U! a+ k% @0 t/ w
]
% r* i  o% K, k1 V1 xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 U/ K# H, b  F% p* {
;;
将此次交易的记录加入到trade-record-one1 {' ?1 j, i1 ~4 P" a. A# j
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). L( v$ ^5 W6 D
let note (item 2 trade-record-current )
8 i4 S4 z3 p) K. _' H3 ]set trade-record-current
8 A8 C! }! e# S- ^1 b) {(replace-item 2 trade-record-current (item 3 trade-record-current))
, W3 V! o2 Q% g/ d9 T6 Y- D* D) x
set trade-record-current
5 b+ s  s/ t8 O0 j! c  M. C' p(replace-item 3 trade-record-current note)  a$ X# X3 ^, [' _
6 G5 n) S/ |+ P0 C9 m
! L1 h( d3 m& R3 u5 Z- Q
ask customer [
0 t, L9 r+ m  J: W# y5 C0 Qupdate-local-reputation
! U! {# E/ f5 h& p$ {6 }set trade-record-current; h) D9 B2 L- q0 a+ F' O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* o- V% d1 a4 }* \- o% q
]
8 D7 \2 n9 a5 ]# e  U0 U2 E1 ~7 N% U8 r5 U* X" T# t
9 @, P' I+ V4 e3 X* d( q; w6 @' [
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer8 E& [" {4 s! j- v4 e

7 _; R8 S! q  ~: Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 G* w6 @. D/ g( z2 e1 f# E" ^
;;
将此次交易的记录加入到customertrade-record-all
; H( a! t8 X& p* ]* U) r8 _end
! x5 `* g* F) C  p: i1 `# M# C) u/ _# q: c2 W3 j( p
to update-local-reputation9 [0 E3 p- S5 O; [4 _0 j
set [trade-record-one-len] of myself length [trade-record-one] of myself
% d2 H; J3 p; a0 X  G* W% h# l6 S5 {8 N0 e; C1 j% x
2 `7 X# A8 Y  _2 K
;;if [trade-record-one-len] of myself > 3
" q. r- Q6 {  s
update-neighbor-total
/ f! D: z  N/ ]8 L4 L. R# }' P;;
更新邻居节点的数目,在此进行
1 o9 E' o6 s( Y) j% W. B# j. ?let i 3
7 h' p! I2 q; O- l9 tlet sum-time 0
# h- ]4 b% D9 X, p$ zwhile[i < [trade-record-one-len] of myself]
9 d. V. P* H6 O* U7 p8 \( u# H+ |[
, l* K4 Z$ M1 T8 Yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): L3 q' c  m) `8 S8 {
set i
& h; m0 O( |! _1 ^( i + 1)
9 W; I, S; Y, J; V$ M
]! ]9 m7 j4 }( g7 Y
let j 3
1 _* Z/ z! H0 w* b  ]1 [1 |7 Z2 Ilet sum-money 09 [" R1 i9 Q3 V: B/ e/ g
while[j < [trade-record-one-len] of myself]5 a: {  N8 ?2 X) v1 }
[4 A% L+ h: H% r+ t
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)
; V8 U- V8 t( v; c3 w; `* B' Sset j8 @! R9 `# Q- s% ^. T) @( ~' Y
( j + 1)
0 w$ @: z3 j) u7 o
]
% {. c* A& [, y" y# x9 w7 zlet k 3
+ y+ w3 U  v8 l" l7 {let power 0
* A8 E7 O: W0 I" g/ N% Xlet local 0
- M  B, D+ B. z' K* `" i8 Nwhile [k <[trade-record-one-len] of myself]" I. a' m' w+ Y. h2 A! }
[
9 f' K: u. O0 C; e/ _! ~6 _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)
4 z; o& d; w, Aset k (k + 1)  g# g; Z% T; f9 W  i
]; A0 B+ v2 n+ s) N! Z. J
set [local-reputation] of myself (local)7 M% H" T3 a) U$ k4 ]% ^
end
4 x6 n$ b, g' r% L, W5 A' o7 @; `/ C. f+ `
to update-neighbor-total
# t3 f! H4 I3 r) ?5 V
% k, z& _; a$ \- F7 ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 Q& u2 I6 H3 a- e

2 d4 I+ e5 Q% l+ T: B

& t  V, M# ?& |7 a/ Uend$ o$ u( J1 N7 v- R
/ g' `* i6 L2 \4 Y& Z: _8 ^& H1 t
to update-credibility-ijl
" ]( F& w- i' `6 P
8 M0 F; s2 P, I0 w  g3 r9 }* l! t+ 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。
! s9 N6 ~! Z- q) |& ~- Xlet l 0
. f: \# i% u4 g5 y2 Qwhile[ l < people ]$ y( b+ Y# P: b; ]" ]0 n- [: X
;;
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$ g/ h. j4 Y& L2 d3 O
[" X- Z3 W' ^) Z* p& T9 k+ S
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); d0 Y" o; F# q% o1 @$ n
if (trade-record-one-j-l-len > 3)
% }  c' \- M/ V; B7 P[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( f3 ~7 g- E! N6 E6 u
let i 3
7 f$ U2 N3 o% Ulet sum-time 0: Y- k' T% f3 ^! [& n0 A5 ^
while[i < trade-record-one-len]5 {9 c- r  I6 J1 I
[
) {7 y/ J2 h, w3 U1 I1 a1 Z+ Uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, e$ B: \0 y; ?; k/ \set i- Q; V* \! F9 P- C
( i + 1)

: K# H0 a, p; A3 P! t]
( m5 V! ?3 u! i  Tlet credibility-i-j-l 0
3 r+ R' q9 L* C& D/ S  O;;i
评价(jjl的评价)+ A. I8 @2 q! g
let j 3# ^+ ^2 _' i& K& {# f& c
let k 48 }/ B6 m4 R+ {6 D, v: r+ X& K  K
while[j < trade-record-one-len]! k( P0 S' z4 c- ?
[
. c. n, S- m7 L# K' f: jwhile [((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
2 |! `8 f4 j% X# @3 M4 i( T% Iset 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)' F9 k# ^, R9 V/ p
set j
2 W8 B" b9 U0 k& O7 U* Z( j + 1)
5 B. {2 g7 K. |; Y
]
6 n" U7 F- Z7 F! x- n& `' x5 [* Vset [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 )): G% H5 X' \! ^& p# c

7 ^4 U0 q) n( D* ?( `) n

' R+ x6 }/ ~. l6 q1 @let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). E0 \5 `. l; m
;;
及时更新il的评价质量的评价' a- |# J) T, h
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 a0 w# n% _( p1 C( B9 K1 P6 Y5 s
set l (l + 1)
8 k+ ~2 _! b4 W4 c/ \) Z]: }* L* B' [2 T8 r  N; E
end
8 @1 h5 {5 R1 Q8 Y, Q3 |
& X0 a! p" P7 n* w# D$ I- uto update-credibility-list7 K8 O4 u2 C7 y9 @2 z
let i 0
9 e4 u0 b0 C( h9 F7 Gwhile[i < people]7 h1 L+ U! J; c  }" [* f
[
8 m, H2 g: @9 }/ R$ Z& D  Xlet j 0
$ f% r2 I& u7 v) [; {4 R7 Klet note 0  h! S( C0 h6 G  E2 O: }) u& O
let k 0) _( I1 g' t' j6 \6 h
;;
计作出过评价的邻居节点的数目9 o' L/ n+ V2 l1 ?  V2 Y
while[j < people]
+ U+ V( ^5 J- e1 |: P1 a- P[# D2 k7 U6 i2 \1 v1 Y
if (item j( [credibility] of turtle (i + 1)) != -1)
3 o6 {; G, n  F7 ?8 t;;
判断是否给本turtle的评价质量做出过评价的节点8 C9 k) }; G$ q6 P
[set note (note + item j ([credibility]of turtle (i + 1)))1 i* y: Q# T0 [# C0 \
;;*(exp (-(people - 2)))/(people - 2))]

# Q; n+ J0 @$ Q; W. O2 Fset k (k + 1)6 w0 D5 F3 P* E: x  p: }7 o
]
& E+ I1 ^! C! b/ Z. |! I5 {! N: Uset j (j + 1)1 {. {& N$ x1 P: X. N! I& y
]( }8 @) \  V) I! e4 T, {' o! U
set note (note *(exp (- (1 / k)))/ k)
. d5 C0 c; Y2 @3 a4 y( v3 f* }4 i( Tset credibility-list (replace-item i credibility-list note)
; `5 J, B) V  ^( l- Hset i (i + 1)9 ]2 W2 H/ _) R4 q" [! T
]
0 C. e) N/ H8 v+ {1 |8 Cend1 G2 G/ J% Y) X  p) I

1 T, s. f  B# d" p* [to update-global-reputation-list
) m6 |6 c  Y4 [) \: q0 ~let j 0: I/ j( D& Q. W% H
while[j < people]
- s/ ^- u# P, P( y1 u" E5 |: I* I[3 _3 ]- S7 f" g5 h
let new 0: B! m' g/ R' r
;;
暂存新的一个全局声誉
# t: J! J& }2 `$ p! a: h. Qlet i 0
' N7 s* x0 a6 H, |" s0 H7 K1 ?let sum-money 04 Q& G/ f9 p+ S" F* B, n% |
let credibility-money 0  q8 x$ |4 l( r4 N* T6 j" {
while [i < people]/ i" `1 Q  u; L
[
# K, G! @0 X. T! V( bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ F7 H; K, j; e( h3 mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' y8 }; N" u6 \" Q
set i (i + 1)5 e7 L! Y8 k2 K; E+ r' k
]- P$ @4 _, A( N6 F$ c
let k 03 C& ^! D' D( ?+ A7 [' R8 V1 T
let new1 0. k* a  x  p+ @9 Q) x. O- h
while [k < people]3 {! J2 X9 f' u
[9 R) V; ]* [# v2 k$ n5 R8 L: R& b
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)
$ Z7 O0 E1 |+ o9 O0 _* i* S+ o2 O1 T8 fset k (k + 1)7 S5 f" q9 ~& L# ]0 c9 Q
]
/ l/ ?. B' a6 A  x- H7 \, Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) n7 ]  K6 _7 Z* N9 pset global-reputation-list (replace-item j global-reputation-list new)
  Z) v( I) R# n8 h; }set j (j + 1)
' ]1 b* e. C' Z" N" \]9 ~  \. ]8 O/ R  u) L& _
end
7 J3 A. _& v& J. M4 c. T: c5 L6 T" ]) s/ b; T: X# G/ B! s  Z
7 ~2 A+ ~0 I& {1 l/ `8 H( A- A
! }* ^2 w0 o3 f- e4 j
to get-color
% V. J0 I) Q1 [/ c3 T7 R
( t( A: |- ]/ O. hset color blue

) C7 H  Z2 Z! Z0 W7 D3 q5 Pend/ w: ]9 u$ i+ I1 _4 L
* g) e1 _0 s+ i9 R6 M: }; O
to poll-class# e' Z; X$ J8 |. ^) k$ e  L
end8 x$ F: k+ @6 S, v% }
+ e0 D5 S' k+ u! k2 G
to setup-plot1
9 C" ?; f* W/ Y4 H
3 K$ Z# X3 j- t9 \5 Xset-current-plot "Trends-of-Local-reputation"
8 z1 f" F" P& A6 `

- M) J4 Z$ F2 s$ rset-plot-x-range 0 xmax
; ^7 A6 ?. @9 v1 s* R% x) j4 x
% t: L# y) @% d! r
set-plot-y-range 0.0 ymax
* Q0 ]) M/ h) n9 I5 z" q
end
) R# T3 K: u0 B; R! {$ k( {' n! u% L6 E* X7 y8 g2 \
to setup-plot2
' i/ e! S$ J" U' Z2 a$ [3 f+ W- p/ S; i/ i2 g; ^
set-current-plot "Trends-of-global-reputation"

- `" f+ f' X1 ~  h) W% |
- R( ?3 B1 e8 {/ e1 }; Rset-plot-x-range 0 xmax

# U9 ^4 k3 O2 s5 I& d. k% Z
, @) e. z$ \2 _+ ~$ F# eset-plot-y-range 0.0 ymax
  p! r: F9 P+ w! |) u
end
5 k. N) l9 ^' k% a2 g6 {1 \! F( o
to setup-plot32 f1 ?# r" y  J8 m0 ?! ^
/ K1 ?3 _2 K7 n! t$ E! N' [
set-current-plot "Trends-of-credibility"

' q: L0 c9 e: K8 y+ n# w  |4 x
& R( t; B, W9 _/ Lset-plot-x-range 0 xmax

% Y# k+ Z& [0 e0 }
2 E  f/ R% @) E! Xset-plot-y-range 0.0 ymax
" t# K& Z; T4 A. Y. R
end+ I) g7 F3 R  g/ G" L2 C# ?/ j; T

0 a' v3 L2 |) L0 I. [/ e, Z, a! M$ l# Kto do-plots1 [) j; `3 @# b& R+ P  P
set-current-plot "Trends-of-Local-reputation"
5 ]3 Q* _( o2 Oset-current-plot-pen "Honest service"
9 q# |9 Y$ K: B# Jend' i  X6 d) S& I% Y
5 W: ~5 z) x/ G& Z9 w# f1 |
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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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.
2 f5 v  f) F$ I" X9 ~* R9 S* |, {  I' A# o/ ?- A; Q
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?
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