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: 17792|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:5 b: w7 c1 B! v9 V
to do-business 1 g5 n/ I& V% T3 S3 x
rt random 360
  r# T! K6 Q5 J, t7 K fd 1: K! `2 i' }) H+ T2 F3 i, J
ifelse(other turtles-here != nobody)[
& L1 O7 y8 L' R& Q' Y) 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; r* f" z- M! D6 |0 _9 d   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    * W0 e) q! x' _% l  a
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer; ]9 x0 j# G4 A
   set [trade-record-one-len] of self length [trade-record-one] of self
6 c  Z7 M( u# s   set trade-record-current( list (timer) (random money-upper-limit))! p1 y1 I& o4 t
% j2 N- A' p. d3 {/ E9 I
问题的提示如下:
/ h2 S+ E/ w6 K$ L) w& y/ v' |% S$ w# O: }7 ~0 s
error while turtle 50 running OF in procedure DO-BUSINESS
! w1 ^' [6 j4 m7 [8 l) q  called by procedure GO( e' e  ?6 N  U& `1 L2 k7 B& W
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
2 }! N7 o8 M9 q5 i. S( m6 J$ M
(halted running of go)
8 g) a" ?' f* a) w4 L  w) W) O  h' ^* A4 C$ B5 a3 ]2 ~# i
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~~
# e! i' {4 I! O( D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+ h; W9 R" d* _4 B7 Z: H7 z
globals[: N6 L- [% D3 H, h1 q4 b7 [
xmax
. m5 o$ r" m; i! [( b, A) d5 lymax$ q* ], ~+ T$ p0 \6 f6 F6 K
global-reputation-list
8 x; v. i2 V  R. M; n  a0 T
1 ^4 [/ K3 ~; J4 P8 `;;
每一个turtle的全局声誉都存在此LIST# i! `/ S8 H$ w5 G% Z: O& g
credibility-list- b& x: o) {' j) i0 O0 h
;;
每一个turtle的评价可信度
' [: L5 g1 E6 k2 T7 c; F5 V; n- Fhonest-service& _$ q; y7 V" n) G+ b
unhonest-service
" @! F9 ]3 T7 yoscillation0 h& n' F8 H; ~( i3 @2 I; U! R* g+ O
rand-dynamic/ v; v) a$ X9 [# e" P
]
2 p. @$ Z& v) f! [+ U. f) \8 F- c6 R1 G' o0 r. g
turtles-own[: X5 D1 n' \- B5 f% I
trade-record-all
, K+ `( J+ X- O7 B* h;;a list of lists,
trade-record-one组成- B9 ^2 E3 {: S, a! X  ]0 y) T
trade-record-one
6 L8 C" y6 F; I6 U  Z8 D;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
/ H" b- d6 t7 ]+ x. V4 A% V) K8 j; e. K
;;[
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]]6 P4 Q- M) w, R& v* c) g
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]0 f2 u. b' S+ W5 A( w  [
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
* A$ `, X4 ]1 v( w4 Wneighbor-total
" K& `+ C2 t; S;;
记录该turtle的邻居节点的数目
0 P: [% T0 S; }# O$ \' ]trade-time
' D4 Y- j' o6 u& C$ X. p" I0 ^;;
当前发生交易的turtle的交易时间& e$ n2 F$ }1 P6 {9 z
appraise-give
1 h, d0 {( `0 C1 z' @1 B;;
当前发生交易时给出的评价3 W, j$ m4 A- e; x' R
appraise-receive
% a, H5 O2 l' r5 X$ u;;
当前发生交易时收到的评价8 z& a6 V8 w1 J" }
appraise-time
" D  X; }4 z9 [0 v- a;;
当前发生交易时的评价时间. u- q; G4 n6 r* B" x  c( m3 c
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
  h. E, M. [1 ?trade-times-total! v2 H% P! H$ q( ]( `2 _" ]
;;
与当前turtle的交易总次数4 O" {0 ?# }; q
trade-money-total# s" Y; K+ ]' }  U  Z9 L/ j/ N4 C
;;
与当前turtle的交易总金额
4 r! d$ q! v2 x7 Flocal-reputation% C7 V% W) o% ^: S
global-reputation/ X$ f. T9 e. k1 q
credibility4 w: M; ^/ k- l% O) ~. p: z0 |
;;
评价可信度,每次交易后都需要更新, N" f8 ]3 i" A8 x5 @0 c
credibility-all! Y3 _* N9 \/ P& j
;;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 u% K; ~% u! b" Y$ z: j4 C- p/ O* b" c
;;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& e0 n: k2 V( Y* u# V" Y0 O; }$ i6 b
credibility-one( ?: L, S$ N- l5 n" Z' Q% r* e
;;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: [: ]' x, {8 C8 H) K
global-proportion
2 n% v8 V8 Y! J( Z- F  Jcustomer0 l- ]0 o* Y, J8 `1 J" \
customer-no
* ~- q( A) n! rtrust-ok' t0 v( O* r$ `$ g5 O& |- d$ U- p
trade-record-one-len;;trade-record-one的长度2 [3 D$ ~6 e- w% L
]
( V( _9 }8 t& V. r, g/ G& v/ A3 `7 ^1 }$ C! S# [6 P) [8 f
;;setup procedure
8 u. K5 N" I  o" E. E1 Y9 f, D; v4 i8 i
to setup3 I, }, n3 f+ W) }7 H' W( ~

+ }* S7 N2 a( F8 q$ ?# M; `6 J/ ]ca
2 G5 C( ?* Q( L& D% {" x- P3 c

) C8 G* i7 }: w6 }- Z* v* Y, j1 `9 {initialize-settings
, \9 ~6 [2 t/ O0 B! _1 I

% {. C& P0 m& {; }/ ^crt people [setup-turtles]
9 g# t, B8 W" r6 Z& Y
7 z6 C: W1 H1 h2 R; j5 x- r
reset-timer

3 O  V4 T5 U( X' ?; h8 k% u2 Z0 ?. w0 ]! U" x
poll-class

  u6 ]/ w( s' [& D: j* H6 M
! y! }* h  s1 W) Y+ e+ N6 N9 d& C4 Asetup-plots

' [$ E8 Y* U8 Y
- C) T# s. Z( L+ c! Edo-plots

1 \2 \9 L, i" r- |end0 ?. [; V1 r) h( N& w1 {8 {/ f

# c9 S  K$ s+ pto initialize-settings% J, V' c, w. H: E

4 r9 ~$ z% n4 h0 Q6 U. B* i, j6 rset global-reputation-list []

9 F+ n4 J' `/ O6 A7 T7 w* C
- D/ }: K& p- ?# R$ R, bset credibility-list n-values people [0.5]

& E/ U6 E5 P! W' {- Y2 J
" }) e6 q5 V, mset honest-service 0
& a$ l$ I5 k8 }, `0 Q

' U! G4 ?7 m9 xset unhonest-service 0
6 F3 Y7 N7 f4 H: A; L& ]; y6 `/ }
7 t; L" [/ ~9 f1 Q8 E$ t/ v4 ~
set oscillation 0

0 q# x- d: `, r  k) ^9 e9 ^2 n/ A+ M" o
set rand-dynamic 0
. g* B+ [; U& L6 e
end: {" U  ^1 ]. n( G" {* K

% [# b( x" l2 f/ D7 I' qto setup-turtles % Q* ^* O# A: z% d3 _
set shape "person"
% U/ z& A6 P2 x/ qsetxy random-xcor random-ycor1 p3 Y+ w+ _& }& _' v
set trade-record-one []( p# n# H% x* j8 y  C2 {4 j
1 p" A8 q+ m% R! C
set trade-record-all n-values people [(list (? + 1) 0 0)]
/ V4 i! c; \* S! c5 s
# X- ]0 _9 E$ n) Q+ O
set trade-record-current []  g- n. ^; Q8 w! D' @) P3 p
set credibility-receive []# N! J! d/ i% x0 T4 ?
set local-reputation 0.5
0 ]; I7 D! w- ]) P( Rset neighbor-total 0
( }* O  l- J* c0 ]8 ^5 qset trade-times-total 0
. q: O3 x8 v; d" \* ?6 ?  J' yset trade-money-total 0
! n8 _/ [% Y; R3 z1 fset customer nobody8 B, m4 j, t9 r) O' y
set credibility-all n-values people [creat-credibility]$ j3 _5 _3 d- ~& a8 u0 z
set credibility n-values people [-1]
6 _* u1 O$ Q+ `; x0 i: B! `8 c* _get-color
1 A# \% I; t& j/ j% V; {- ?( \) U+ j

0 x( b8 I# \& i4 Aend
3 b. i9 m! F" d
& ^7 I# D1 H* o& Nto-report creat-credibility7 u; R5 U: e4 H) E8 |
report n-values people [0.5]5 Q! G* J$ @& }! Y1 [7 [2 \
end. i1 b1 E) N3 m; n; z# J3 H

: Z; e- N% C- V# _5 J7 @to setup-plots
  O6 x6 i/ W( F8 S. U! O# J2 U1 V" ?, J2 e) U. c( Y/ p% j: n
set xmax 30
. L8 T6 s8 I1 p* B; ?
3 T$ D. O2 J: a: a( X! F
set ymax 1.0
+ z: R$ f2 S* M7 a) n
1 b$ P* H% v# Y, o' m4 P" {% t" ?
clear-all-plots
2 J! j# f0 K- u- h

2 X: X! f$ x3 I3 O4 ~4 Jsetup-plot1
: Q; ~+ P5 w+ E* k# i/ ]

. g1 R- D- r! Y6 ?9 Y+ T# \setup-plot2

. v/ j# z/ `1 }3 f' B9 B% x) h: n. O7 k: C: V4 [
setup-plot3

- ?& _+ N5 s3 g& oend- v( u$ t4 T+ C! Q; u
! d; k5 @4 f4 m/ v0 r, `  q
;;run time procedures
  f8 K+ G+ }. K6 @4 E! M% ~9 h8 e9 |2 K8 p: d
to go" J) o! p6 F% N
# p. G4 H  m8 o, B/ x  `
ask turtles [do-business]

. ~" r9 ]6 f6 ]) n% J% Tend
( {- {( x7 Z2 b
+ S& u: g1 g' t# Hto do-business / O) s) I# b9 z
+ ], D5 R0 j1 ^, e6 e$ l

4 {" O3 A1 M2 s2 srt random 360

5 ^# K  y0 U; e4 t  |0 Z$ v7 j: K4 N* m! p( a0 b, ]
fd 1

1 v% \6 |2 `& {/ f4 u
5 j. f+ s9 x7 c6 |; `ifelse(other turtles-here != nobody)[

0 _& N6 A$ |$ }) ^7 N
9 j# Z3 \/ y- c3 ~set customer one-of other turtles-here
% q: D: u& R0 ?$ l
$ n. P6 C" r$ d, O6 h
;; set [customer] of customer myself

9 ]# s$ ^3 f! X% i" y6 ?' v4 s/ Z
set [trade-record-one] of self item (([who] of customer) - 1)% e' J3 B' n2 r( y8 F& A" E4 d8 t
[trade-record-all]of self
* d- T5 V& V0 j( d* n;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

9 V. C) \0 E8 b
+ |$ q* o- Z" b  b6 oset [trade-record-one] of customer item (([who] of self) - 1)
% V. ~3 S+ t9 \[trade-record-all]of customer
( a" l, B* o4 G/ X

& F# R2 ~/ c, S$ p) a' Q, Eset [trade-record-one-len] of self length [trade-record-one] of self
# b, i0 T% ]1 \' m( _1 r
$ K4 {) j! E  O( {$ Y5 z7 M% ~/ t0 ~
set trade-record-current( list (timer) (random money-upper-limit))

; `; P: ~& h! M& X
5 C* [  L7 q  Oask self [do-trust]
5 H+ c; r& j* C* `0 J;;
先求ij的信任度
0 P+ k( H- Z% y9 }% X0 @5 L* `- ~! A1 S7 p3 n9 E' F! ~" r
if ([trust-ok] of self)* i# d% B/ d9 m  j) g
;;
根据ij的信任度来决定是否与j进行交易[
2 f0 v( g6 ~! M2 N4 iask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself4 q" l: g  O1 {( \* M* `
4 @8 U5 S4 P* b2 a4 Q% y1 [# `
[

; A9 M: J+ d% H  v/ z2 O) G* P* v. |) e8 z& g8 M5 T
do-trade

) `# p; ^5 ^( g$ S( s" O" O- f& z
; ^. k4 ]" k7 I0 B+ tupdate-credibility-ijl
) p+ J+ L0 ?. B8 t
* Y( c) z6 q; d' Z; N
update-credibility-list$ Q/ c" t# l% s4 i9 X4 p
. E% ~  R2 e% X' @

) `) Z( Y2 F0 u0 qupdate-global-reputation-list
/ K# g' S- _7 a  s9 X& o. H6 c+ V

' r" \' Q- ~7 w7 B. T0 xpoll-class

. }: z% V4 v$ l8 D+ ~1 N3 U1 q) Q, Y) ]  E) }" w
get-color

2 A2 ~! f* H- f. z: Q0 s0 F) \4 I" J2 F% u6 g
]]  |& x# f( R' v& l/ R5 q: S
$ }) i( ]$ _# ?# y% x- I9 K9 `
;;
如果所得的信任度满足条件,则进行交易9 P+ n, Q$ ~- O+ I# {: z9 k
9 b- U# w/ y4 m  K
[

9 x/ S& ?5 J( A3 w' ?6 V
3 ^$ K" b' j  f8 l' }$ z9 F$ Y2 Wrt random 360

4 M. `( F8 p$ t8 Q2 J7 ?1 ^$ g# F
fd 1

* s5 W/ u+ \; C$ i5 S8 J+ j, ~8 Q+ A1 j5 u- {3 Y0 U: N
]
7 D  O. B$ ^/ H8 c1 l+ x

$ T- [+ u8 J5 x: j  a3 Oend
& ]% ^, ]! }' e5 L

# W  p! R, M$ B( a; t: ]& P& r& qto do-trust
" Y+ }% |' V. I! X" n- \& ~- gset trust-ok False5 v. Q. q4 T& x: v3 |

1 V9 m5 v4 Y$ {+ p9 B
  \! Z2 C2 r! L6 |
let max-trade-times 01 u5 W( }% L) Q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. h: D1 @* ]% O$ N( d( O
let max-trade-money 0
; ]9 _% ]8 a+ ?- n- }5 Vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% v6 V3 }9 D- r1 vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ P4 N7 ]( u. r6 z
6 D+ j* Y+ x$ T: B

+ ~  b4 G( Y+ ?: a* i' `get-global-proportion( r: w; {; y9 m9 _
let trust-value4 g9 K' E: k4 H. d0 N
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)
) t/ j9 j/ @4 H2 q
if(trust-value > trade-trust-value)
0 f7 R' k' M' f& X0 b[set trust-ok true]
, t( U4 \, j$ y6 ?8 ]& V  Y8 Jend
. w7 ^; _4 E$ c
# Q% a* B0 `; ]9 mto get-global-proportion7 L9 U' i6 U5 ?6 s
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ c$ E- P% B9 u; N  ^
[set global-proportion 0]1 u3 R3 B6 g- J( }- w' V6 h
[let i 0
1 s/ Y+ w5 p9 M/ D. y; a6 t. xlet sum-money 0, Q; F2 t9 y( ^" t4 X
while[ i < people]* ?8 k; t0 p, B/ F2 [. ~. \
[7 d8 t6 X" R2 `7 o# u" @& _, R: |
if( length (item i' O1 J3 A' k& r
[trade-record-all] of customer) > 3 )

& L% b7 ?+ h+ ~6 b+ `" p; s* M[5 h- t8 s; U, ~7 S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# L% d& y* R* ^  B$ C2 t' Z$ k
]
0 _& J' c  B' k6 S5 E, L]3 T& S9 ]0 Y$ L* T9 M
let j 0
  m' C; _) G& A4 L" d; Xlet note 01 W/ Q: }& j. _4 B( G) d2 |
while[ j < people]
1 P0 d- S( W' c[9 r0 W5 f0 N* d9 @3 W: o: f
if( length (item i0 N- `+ _+ Z+ W' r% P
[trade-record-all] of customer) > 3 )

3 N6 Q# W" x, a- _; k/ o% t4 w& d[5 b: u2 I6 q" Q9 ]/ [/ a# p4 P
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 P& d  Y4 T7 @[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! P# }/ u% b, G+ A7 X' N
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 k/ N  i$ D) y" S/ @" n- m* l
]  i! {7 V* Q" X! V9 S9 X
]
7 F" g  [3 c) F+ s! B9 Zset global-proportion note( S1 W* I. j. t. `# i. z
]  g' W7 t" l) }* O. p5 V! Z
end
9 ]6 T$ w8 ?$ A! }$ |0 f1 s5 l. P6 h  x0 a  w
to do-trade$ [( N7 _+ Z0 M  n% ?
;;
这个过程实际上是给双方作出评价的过程8 T2 Y/ G6 x: ~# {4 _2 m1 o2 G
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价# c+ p5 J6 w0 \3 v! `
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价0 F; {& c# {& i* ?- y! Q
set trade-record-current lput(timer) trade-record-current8 C1 G' o; \. c  o, t9 d0 F
;;
评价时间
3 R% x1 e- K. R! [, hask myself [
, Q9 R* _7 ]+ B* F; b  _: iupdate-local-reputation$ g3 ^. j( m  }# o# [. F; l
set trade-record-current lput([local-reputation] of myself) trade-record-current
% b7 M% ]- g( t& t  l]$ z2 _8 D' V$ g% l2 a1 V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ B6 O2 z& {/ E) ^. ~3 p$ _;;
将此次交易的记录加入到trade-record-one- W  i3 D6 \. H1 |$ |" _# [: N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ g2 ]$ }* N5 V+ r! Xlet note (item 2 trade-record-current ): p* \8 ~/ f5 Z( Q
set trade-record-current
* c0 [) r0 ~  X  R3 ^(replace-item 2 trade-record-current (item 3 trade-record-current))

- v/ \" h4 I/ Iset trade-record-current
5 [' S9 g" [8 Q3 k: e(replace-item 3 trade-record-current note)6 `( t9 w0 m: w" N
; T! H& X% z' j7 X2 B7 t

0 o& o5 r: k7 `0 A5 ^' |4 H& Pask customer [
, k5 ^* C% j7 |% q* }, tupdate-local-reputation! O+ r- H' O+ r$ X
set trade-record-current
6 ]& S2 Z4 F6 J) ^(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 v$ ?: G: ~+ G3 X
]$ ?  ^. i$ ^5 c7 k  V  s

* C6 ^3 G. V) O6 o" [

9 o- Q8 ^3 v0 p! U7 y8 l% Lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 l/ q0 ]2 p5 c7 j7 `: Y% Z, r
5 y/ g5 H' `9 [" y/ X* W2 q! ?1 ?3 D; l
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 ?# P" X3 N0 F) ^
;;
将此次交易的记录加入到customertrade-record-all( g* a9 U/ o% U8 G2 U
end
1 O4 n2 h  I2 N* p, W
8 x4 ~  c1 P2 v" Cto update-local-reputation2 f# @$ c9 k: ?8 S- L
set [trade-record-one-len] of myself length [trade-record-one] of myself- P# I0 O* i3 g+ o* i. n
- y/ G- _( E$ Z2 e) S- g" m

! @* F* B) a% D3 U! ?;;if [trade-record-one-len] of myself > 3
: i& X5 S) T/ C% _5 \. v7 Q
update-neighbor-total& \; a; i+ u8 M% D& d. n
;;
更新邻居节点的数目,在此进行5 I( x  K$ K2 n0 N. i; `0 q% ~
let i 3
9 Z  h+ Y+ ~2 g0 @) q. flet sum-time 0
$ g/ n% c) m5 x1 w( Dwhile[i < [trade-record-one-len] of myself]
2 u8 S! @* M# E# t4 \7 U[# j( A7 c8 H* @- ?* j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& g* u, s0 F' y/ H# t, u
set i3 p3 q) }! ~# m3 e% Z: u+ l
( i + 1)

* v, Y% _! W# \% }7 O]7 q" c# L! j. o" r
let j 3
# B) ~% A8 C6 [( ]' ~/ u3 e% {let sum-money 0  Y& w) T! l3 M$ A1 N7 e2 S
while[j < [trade-record-one-len] of myself]
3 a8 X: {& V& Z& |  y[' \$ e' J0 g" B5 }' Y) }& v" C
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)) i5 W  b1 Y, x9 }$ `
set j! Z  X5 D2 t2 O2 ?3 @: T
( j + 1)
+ f" `) F( f) s5 M
]
$ ]) _; _, ~5 B  Ylet k 3/ K  `# J7 j9 I
let power 0, C6 q5 X2 L6 v
let local 0
. B  {$ }+ Y) ]! Bwhile [k <[trade-record-one-len] of myself]. v; ?$ C% r6 |
[- Y" V: t( @7 F9 o
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)
" S4 e. ^! a+ o# Dset k (k + 1)" ?# B0 x+ e7 i  z9 c
]
$ K  g! J" f. i% x# a% Xset [local-reputation] of myself (local)/ _; {6 \% }9 x" d
end% U4 i! p$ ^8 ^! D
8 P# P" G# p" J/ o( O. ~
to update-neighbor-total
3 q0 u8 E9 t; A# J/ W3 r( t) n3 O5 q/ _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: m$ g* ?, I8 x. q+ K
+ Z. ~: z8 n: x" q! G! Z

9 I; n. y2 x# {$ s* p0 iend5 j0 z. N& x0 j" c& Q1 s# Q( P
8 A: a" C$ @$ T
to update-credibility-ijl
9 b6 L3 O7 u3 G# B. [% h! ^$ F5 T. j3 p; O/ g* k2 H
;;
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。
3 \1 t  R# U9 U; a# G5 F' C! mlet l 0  U1 k3 T7 M# [" a: w
while[ l < people ]
' C) I; H  k/ Y( T( @! K' s;;
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
, g0 W1 ^8 I3 D5 _. C: T[
. g* l6 c  K1 Y( g& M' x* I. V! q9 clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' a8 \/ T: r1 k: n5 J" G% U, l) Wif (trade-record-one-j-l-len > 3)0 U+ E( f: H6 D0 ^2 T; N
[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 k. r. I/ X- R; s/ h' w
let i 34 L% @. ]+ p: P7 L, u
let sum-time 06 P  r$ @4 I2 \/ d
while[i < trade-record-one-len]' p1 B# Y$ l4 f, [: m, T0 @
[5 _& y7 z5 v4 Y8 U2 z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
  L; ]# K$ {7 M; Y; l% j4 fset i+ m) f$ i  a! V
( i + 1)

( o7 C5 x8 @: s, a6 N4 H]4 q1 D. ^/ K# b' v: P; H
let credibility-i-j-l 09 g5 l3 [! p9 ]4 C
;;i
评价(jjl的评价)! F% y. c9 Q( f! g/ I( N, v% ~
let j 3
% U+ _' v& ~/ f0 k3 l/ O/ J' Y/ n6 zlet k 4
3 I+ ~3 \: P6 S+ \$ owhile[j < trade-record-one-len]
, h4 f& v5 J/ e* Z% l6 b0 Z[
+ b4 s- q9 A, i! x$ ~3 xwhile [((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* Q* ]. h' X0 C1 [# Z& N2 z
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)
- a# K) l0 `: G' M2 dset j; y/ v$ ?% R% D* L
( j + 1)
$ N3 e( |7 c% N. L: B
]
& m: }* N% V: k. Z( f8 G# [9 Qset [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 ))4 I& ~# m5 s4 r( j4 I

! d6 O" z' _* J
+ N( |7 T; [4 O3 x0 {3 j0 c
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ W; H6 q+ q% O;;
及时更新il的评价质量的评价! j# |8 o1 w: f4 @3 O
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* X% ~" J/ r5 W, g( F  k$ O2 n
set l (l + 1)
$ k: o0 a8 ?) `]2 M3 [6 q( ^( K- \
end
; h' D. s: U# t3 T% K1 o5 v
5 m8 \4 k! R8 ]# X6 k1 \to update-credibility-list
5 `1 N8 s$ o0 ylet i 0' T5 @! l, @  U, ~5 `
while[i < people]
8 Q/ `/ v2 x% h+ q5 T- t7 K[8 v# {3 C- L! Q# a/ [4 M+ p/ j
let j 0
7 i; V, O7 }& W+ |( ^9 I; U- a+ A$ }let note 0
* f2 A0 a: Q/ I, h9 Nlet k 0
7 L' p8 c! t' p; T* X;;
计作出过评价的邻居节点的数目6 @" y& |. G: M3 b1 r. i
while[j < people]+ e% p9 I, w  n0 g4 A
[) E! }, h5 }2 u8 A! @/ ~
if (item j( [credibility] of turtle (i + 1)) != -1)
6 w0 s/ S6 u: X! ^;;
判断是否给本turtle的评价质量做出过评价的节点
* I0 z0 E4 N. {8 {4 q% I[set note (note + item j ([credibility]of turtle (i + 1)))( [* q% D& u; w
;;*(exp (-(people - 2)))/(people - 2))]
4 {- b8 O, S, H" ~- u5 `8 [% B
set k (k + 1)) v' l) p- q; o" G5 t, E
]
; [7 S8 S: w4 ?- J& C/ qset j (j + 1)# T- M0 p) r6 r* ?- c) m( o
]
5 q" j- ~" Q$ n- w4 I% h  sset note (note *(exp (- (1 / k)))/ k)
7 v9 Z8 I! y( o$ U& j" [set credibility-list (replace-item i credibility-list note)) p( E( a; [/ i. Q
set i (i + 1)
$ v5 U& o( K- v]
6 r+ K2 h+ F3 J. }" f' |5 iend
% B9 Q+ B& e+ r! S
& ~. x+ x$ C$ L) Q$ Lto update-global-reputation-list$ c( U6 ]2 F+ u8 s
let j 02 [( D: e2 S  r( k0 X7 y. F
while[j < people]
9 {1 V  X0 {" h[
9 J; Y8 j' Q8 i- R2 Olet new 09 n. {1 p; u$ ?
;;
暂存新的一个全局声誉% t- T1 X% O3 Z& i! g! r" K2 ?8 t
let i 0
& ^- k3 p' @0 `  O- dlet sum-money 08 {9 d2 k! ?4 V6 h4 I4 Y3 C. Q8 d* ]
let credibility-money 0) A+ i  i+ O6 A
while [i < people]
. M( o, d9 p2 B' R[9 m$ u- T. _8 p3 T: c, E+ D- m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% T; c7 K5 w* J3 F+ {2 O
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 Q( h. k2 T, C  v# Fset i (i + 1)% N& O- x( C0 `
]# X' p5 M" c4 v/ a* E& W. c1 m2 B
let k 0
' I7 m5 \+ c: _let new1 0) X% G& f! X& y( Y# e
while [k < people]
+ u1 ]+ A0 a" U+ E8 i3 S8 e[
* E; A/ [( n: i4 n8 Y+ c" @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)
9 |- m; K# ]! E/ ~" G8 ~set k (k + 1)
6 b- a8 P8 g+ Z  b- l3 K, p" d% ]]
& S& T- c% |& n! I- |1 @4 Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * m, v1 ~1 i* e7 s4 L
set global-reputation-list (replace-item j global-reputation-list new)( w  {6 }/ e- o  G
set j (j + 1)
1 ^- ]$ `. I, r]# w. |9 g5 @* c7 C8 w- l
end/ t1 R" p. y* f% [1 g
: [0 A  A) `5 F: C

: C/ d# _/ Z: t) [+ v7 h" j0 f7 ~9 f& }6 ?
to get-color
7 m  a* O" E$ o* {7 L
; x$ d3 J. c4 ]3 R9 E- Y7 H/ h# mset color blue
7 g5 Y  M7 ~6 v' V8 \) F( V1 s
end. W% [/ F; X1 G6 v, ~) }& k
) Z3 e5 K5 F6 U" i$ i$ b
to poll-class
. D3 {* `" A" A$ lend  W, |. \1 A3 u) L' y1 p

$ J& j0 |! G3 e3 eto setup-plot1
3 B5 P+ o' X6 V- F$ O4 }. M% v$ s1 ~1 _5 d1 Q9 K* h
set-current-plot "Trends-of-Local-reputation"
& F* }  r. h' X/ q$ _
; g+ H1 ^0 T9 o) \6 I% W4 F: ^
set-plot-x-range 0 xmax
; k& L  i6 U' u5 K! _2 u! O/ i8 P; ~
7 `3 M5 G; u& D/ @) ^: n
set-plot-y-range 0.0 ymax

; D8 G# Q- K0 r, Z0 j) Bend6 ?+ z8 j. `) [8 v' v& R7 |

) p- }9 Z" L/ Ato setup-plot2
+ t7 g8 B6 a) U% r) L* O9 ^- g0 W0 H8 y" h5 M: k0 t
set-current-plot "Trends-of-global-reputation"

# d$ l! Q; E4 b: G. v8 ]4 j4 z: M9 p3 s. f/ t6 C+ s4 P0 C
set-plot-x-range 0 xmax

, \1 ~3 O# E5 n) P1 {$ u, s6 Q: \8 [' d: R8 x. w  C; \+ f- C% X
set-plot-y-range 0.0 ymax
6 d$ k) G0 n  z" E' n
end
% C1 }/ ?3 k% ?2 H! s) W3 z, y. X1 B) v
to setup-plot3
9 w" K; s3 e- ?2 T4 r2 |  y4 \  U; E/ P1 W1 y
set-current-plot "Trends-of-credibility"
7 k3 H" @  G7 U# p! I
  w( D* |* A- \: y8 l: @
set-plot-x-range 0 xmax

$ P% I6 b+ U5 K$ V) D
* D7 [) L* c9 ^0 g, C6 }! bset-plot-y-range 0.0 ymax

( `' W  ?( W/ q( A- mend
# v) n; V# H6 N0 {3 N
% Q+ c, c& w2 Xto do-plots
1 A- d8 n2 }1 f& U0 Hset-current-plot "Trends-of-Local-reputation"
7 _/ o  N/ L* ]( k, ^5 nset-current-plot-pen "Honest service"
8 S- ]1 _& o3 \5 d. p4 p# n) @end# x0 n! _( j. [+ N' V8 v# C3 o

8 b4 k2 E8 @- F[ 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.
# X8 ~! l$ a7 R1 r6 c* Y* B* x. O# k9 D6 l& F7 \# s& D
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, 2026-8-24 10:49 , Processed in 0.019643 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