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: 16157|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:1 c9 ~) x) _+ k0 l1 g, i
to do-business # U- V/ p, _# i( f  e# I; ~- A
rt random 360
- O8 c% g: y  b% t+ {9 z/ Q fd 1' k/ b. O6 g& E$ T9 v1 Q/ ?' R
ifelse(other turtles-here != nobody)[
; D, M/ ^4 u* k- ~! p- U   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.
* k0 J( Y1 T3 S* q   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    ) ?) p/ f: e" W& F& w# g' I" [' S) h
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
1 ?2 U: ]1 p% X) e   set [trade-record-one-len] of self length [trade-record-one] of self  u3 M% X7 i/ V5 d, N8 h+ C2 d
   set trade-record-current( list (timer) (random money-upper-limit)): |7 J% z4 f  b/ h- q3 q1 J
' ]2 n. t" V6 j$ B8 d5 \2 [1 C0 ?
问题的提示如下:+ c0 K  l9 r- v1 v& v0 ^" p$ A7 }3 [

, L0 d; U! Q$ q! _error while turtle 50 running OF in procedure DO-BUSINESS
. K8 M* e1 g5 l# R$ E7 A2 `' |  called by procedure GO
; |1 Z/ X" |3 {OF expected input to be a turtle agentset or turtle but got NOBODY instead.
" ^9 U' \9 J% ?; P0 c2 [( y. m
(halted running of go)! K  a8 U5 x* j3 P3 L. W
" Y$ Y0 y8 e# u3 u4 ^
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~~6 q! Y! b* x, W9 ]1 ]
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
! o* V5 V. I) P( @/ v, wglobals[
: F. `" w2 C  B* E5 y) U' H$ ^xmax
6 Y' M0 T! t+ p  i- a4 x3 oymax6 f* L$ t3 s3 X  S8 z9 }( F# I" x" I. Y0 ~
global-reputation-list
- x& e, S2 D0 U9 [5 u$ P# E, e2 t: P) X3 V
;;
每一个turtle的全局声誉都存在此LIST, T8 k6 B6 C+ L. F- P2 \
credibility-list
0 s! Q, D+ |& I2 S3 B+ n% e;;
每一个turtle的评价可信度
8 c& R' m( l  Q: t  [honest-service
9 N2 ^/ s1 j* junhonest-service
" T! k  U& t/ E: Roscillation# l% b# X/ L9 l  e
rand-dynamic
/ o. d* I: E3 \* d! S1 r% S]
% n6 K+ u9 Y9 ]# u/ x
/ k7 c, d$ E  H2 s" v$ ?2 d9 c) Kturtles-own[) P4 f3 c+ J1 ?8 @1 ^; _
trade-record-all; X3 E& {- r* P$ _
;;a list of lists,
trade-record-one组成
: R$ ~5 `% m6 C7 M5 ]trade-record-one
/ S9 V% M9 S9 i: u6 x- g;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
2 a( l! e- Z  h( L9 \/ y
# p3 i8 ?7 j. K8 m;;[
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]]
; t, |5 i+ g; Z8 strade-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]
: s  m! u3 q, @7 j1 U% pcredibility-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% H: l% k: J7 v# Q
neighbor-total
; N$ Z* m4 R% F2 w% ~- O! j. \;;
记录该turtle的邻居节点的数目
1 s% _3 }- {, Z& Gtrade-time9 P9 A2 U% {( @$ y2 R2 _
;;
当前发生交易的turtle的交易时间+ |0 }7 k8 F. C3 J
appraise-give" |# o6 ~* B! ]* j" a! s
;;
当前发生交易时给出的评价
2 m. _3 r3 P2 I8 ?) f% Rappraise-receive
3 V" _% `9 e4 q/ `;;
当前发生交易时收到的评价/ {$ _9 u5 p( |* w" }* L
appraise-time
; ~! m2 B: q/ y2 T9 a* X6 g. n;;
当前发生交易时的评价时间. s/ K* O  ?& ~8 O) p+ b9 R
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& x8 P/ R; g- H/ Ptrade-times-total* u" P8 b" v$ U$ s" U' ^
;;
与当前turtle的交易总次数
6 V- j7 e  B- }% s/ u3 u+ strade-money-total7 B! u& p6 @- H1 Q4 c
;;
与当前turtle的交易总金额
  X' h. x0 Q. w' L; k7 E& Ulocal-reputation: R& H3 O! T" v. \8 B1 ~# r0 C
global-reputation
' h8 U& z/ V# m/ N1 Gcredibility
4 l+ i! `5 V: l. B3 K0 ~9 ?;;
评价可信度,每次交易后都需要更新! t' l' J( R2 m/ ]0 M2 m
credibility-all
, ]: j% N. y% Z;;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6 m( Q' {) r9 Z/ F
1 v& F2 y# K. E; V+ }% D; a/ T
;;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0.57 d- J- {8 K6 b5 s6 O2 i
credibility-one- g. }) ~, d" H
;;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% C, ]' ]6 b2 M) O& x
global-proportion! i. T& R, a! s5 [& z  w! l
customer
/ q) M0 F/ z% |, r: d$ Rcustomer-no& P/ c) i, @* p5 d
trust-ok
* c. p$ k$ x" k# J: {! ?- D( x& Utrade-record-one-len;;trade-record-one的长度5 f) h9 Q9 f% s# e+ R
]7 q" B$ A! ?0 M; v7 G4 b5 f

4 g) T' ]4 H. s* k+ @; ?- T4 j1 P;;setup procedure
& ~1 [" J5 {; E. E1 X( i3 S' [3 o/ p, R2 C2 `. Z+ ?4 X
to setup8 r- i: i& [. T& H
6 K! j" {7 Y: }( b
ca
( I& N2 t9 }8 H' A
7 d1 r5 l% o2 z; q7 \
initialize-settings
9 C# d: c1 _2 c' p9 b; ~( J) [+ e
+ L6 Y: Q7 m. }  E
crt people [setup-turtles]
; K- W% C% \6 L2 b5 T) u" I
+ y. B# L0 h8 m5 L6 r9 ?; _
reset-timer
2 v) e5 t' ^3 s* u# R
! R& g8 [! m  F2 |  m
poll-class

: Y. R8 ?/ C  n7 S7 Y) I! [1 E2 \3 Q9 N. E0 Q; R
setup-plots
, A5 @) h7 U  A% B

* r0 r0 R  ~# Cdo-plots

" B3 o. o' ~& M8 f( H; T; ]( H3 }end: ?/ e% p6 j' ?% w! O) V8 t

2 \2 l# E- \- u  O" e! ?to initialize-settings) l( u- n. v$ u1 z

5 |1 f9 x6 i0 Yset global-reputation-list []
9 f4 k0 [& r; W, A( I- _: l

4 Z+ l3 I- q, M* `* v9 m& ?2 qset credibility-list n-values people [0.5]
' U# V- ?: S3 g* P- Q, L
8 n; N0 C" j; S# ]
set honest-service 0

0 H: [' p4 T" C! U# v1 b1 M
% D* j- L; n! m* Bset unhonest-service 0
, b) t7 R! m: G1 r  g: E  H

+ X/ j" J6 d9 ~% Z2 uset oscillation 0

( j3 b& t! z! H
1 k; n9 K+ W" `set rand-dynamic 0
/ |( ?" N& `- S8 t; |* Q# _
end
8 ^  K1 v2 k/ V" A: F8 h+ E
5 w; s! Y/ u/ D$ I' j) M' c0 rto setup-turtles ' x- X$ g* r. [
set shape "person"/ _5 e. H3 K7 c8 r7 U. @
setxy random-xcor random-ycor0 F0 m5 [  A6 m! j- ~4 i
set trade-record-one []5 I, N9 d7 G3 ^! L2 ?3 U7 E* b

( X4 q3 @4 e; p+ h& Hset trade-record-all n-values people [(list (? + 1) 0 0)]
- R+ G# B0 S6 k2 \  K2 a

7 S* _) s; b. ?- @, ?7 cset trade-record-current []
3 |5 Y7 x' H# c. sset credibility-receive []* _' z' h: [3 s/ U& L5 f
set local-reputation 0.5% `( B$ h5 q2 H" L; a
set neighbor-total 0. E+ R! P+ L" b( `' O0 o+ k
set trade-times-total 0( M6 f1 z5 ?0 I  I/ O3 A( |
set trade-money-total 0
2 D, N8 Y) V, Hset customer nobody6 h6 ~% }: M& O" C
set credibility-all n-values people [creat-credibility]
1 v$ ?& G5 @! n6 y  Oset credibility n-values people [-1]! X& }. r! }- O' w; s5 r. n) o
get-color
0 v) R) V+ F; k0 ^9 Z

* z( U7 o3 \# |9 W  h7 Vend6 O3 m6 ?3 ~$ x; w5 q( a- |) y

/ G% W' ]) K  Z; i& C" N- @. c, a5 h( Q; mto-report creat-credibility
; v- i. Q# F4 j+ ireport n-values people [0.5]
2 w$ a3 _/ ?+ M2 R; H) }9 J( E! d: aend
- H: ?  w0 A" m$ A& _
' C9 W) u  U" G; M& {to setup-plots# |9 y% Z1 Q- ]6 w" E+ @
* G8 `% B' D! Y% x$ n' {
set xmax 30

2 Z! \" j0 }: z5 v8 c' }/ f6 j3 @
9 n6 e6 W  q1 v" G) U5 rset ymax 1.0
; v' s  C+ O( i0 M
. F! C- g5 z+ x8 K6 j% b9 Z, _
clear-all-plots
1 m# k3 f0 k0 j) A$ q
$ u4 q( h- H2 ]- @
setup-plot1
& A0 h0 S, _4 b$ L

# D* H; m, T# B  x/ esetup-plot2

2 n# }! Q# Y8 s/ M8 }. m# K; V. B8 R6 u- Z  \, ^! q. h3 j& C
setup-plot3

- z$ e/ W' `5 v$ v4 V$ Q- |! ^end5 \& m5 e( H; }3 V8 G

$ u2 ?8 I& z/ U3 v) o" ?- G* N/ S;;run time procedures
. a/ ~- E0 Q; ^$ p
+ |' G8 ~. D0 J" nto go
/ t" x. _, g+ h( X9 @8 s. {( J3 ?# j5 M. B" d- A  b7 U1 n# }
ask turtles [do-business]

7 E1 z% }1 F- u2 \) K! _4 f  vend
" Z3 f8 Y# ^9 x5 {% T6 h$ F, A0 q) Q2 m' H
to do-business
. e3 O; I7 L  T  W* o
# E/ [7 m1 B4 U. I0 m
8 Q" o+ i6 X1 u
rt random 360
' B6 O2 p. q+ t- V8 D1 g% K

/ V7 K- p. t0 F4 {. Mfd 1
+ A  t  q7 G5 B  X% \" o9 d4 ]

" D( j- ]2 s. wifelse(other turtles-here != nobody)[
; a4 K& E, f8 i5 L+ c4 p

( m# ~! v2 J+ h5 O8 ~. h6 Xset customer one-of other turtles-here

! C2 t( S$ z8 g8 W( k' N9 g+ B
* i7 r2 F- [( W, q;; set [customer] of customer myself

( M+ u5 n/ |. V: V* p
: s% K" M% T0 V6 ^set [trade-record-one] of self item (([who] of customer) - 1)/ P  f" H; N. l! X3 {6 A3 i0 X
[trade-record-all]of self
! ~( x7 a4 l1 ]' E7 S;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
  r" B) H% \; T* N

/ d/ d) Y" S3 `+ ?9 @' z9 m* Cset [trade-record-one] of customer item (([who] of self) - 1)
# ~$ \, e' Q- b7 j& t! ?8 n[trade-record-all]of customer
" C, ^. i' Z- C
- {- |# R& [( U
set [trade-record-one-len] of self length [trade-record-one] of self

8 Z: z7 r3 z+ O' H; Y+ Z( a% H
9 j) c4 q% C+ A1 a0 J/ o; @( }5 vset trade-record-current( list (timer) (random money-upper-limit))

) b. ?1 G- K0 P2 l: U5 e; w
% {+ `9 u* g8 F7 d2 V" x+ sask self [do-trust]
& i( R8 M" P1 E( U: j6 m5 M3 T;;
先求ij的信任度7 a0 y  _9 n0 I3 o  ]$ U

  }. c+ a( f$ N5 K  Zif ([trust-ok] of self)
8 E0 ^' H9 Z8 m1 P. I;;
根据ij的信任度来决定是否与j进行交易[
! |- i! V" Z( M5 ]( kask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
2 V9 ?5 |1 v  T" M0 \" R! x3 Y, ^
[
! y# L% E0 I2 i' C  n( K5 g2 [! j
0 R) u" ]5 y, r! M1 k3 S
do-trade
* |! H4 R+ e" D; a, [* K) R7 t$ m- h9 k
6 i, i% s+ V' Y0 L
update-credibility-ijl
& f% `. ^$ p( Y! C3 f; g6 N

) N# P+ P) S5 R: Jupdate-credibility-list
6 n* k. @5 U9 i- F0 |4 Q

. l1 z: e" ^! }& `
: k; t% g( c7 b4 p7 b" u8 n5 supdate-global-reputation-list

, }$ |4 L9 A( g9 V! j* k- o3 r3 d( ~" {2 K% R  p* c
poll-class

* r; V- t) g) ^4 N6 [: F! b  T" B  X$ k3 T2 e) J
get-color

  ?, U( ]4 y; R5 e3 ?& \2 J
7 m: K" F! ?. X! B' I]]% |& N. B7 u/ H6 g# D+ I% z
2 X- i3 A: e7 J
;;
如果所得的信任度满足条件,则进行交易
+ {1 O1 T" s& ?9 `
2 r4 v: i. Q0 B[
7 D+ l# z' v- I; S4 X0 D

9 i$ F$ V/ n" b# x% Ort random 360
* A8 k( q+ o- B3 H

/ q! _1 A' a# b; jfd 1
, T( n; ^) t4 B4 O; l0 i' N

6 V3 N! E6 B/ S0 R/ [6 g' e# r7 G]
8 r8 H0 d" j# H4 _$ {
$ S) B; M. k; s8 B2 W$ {* j
end
: z6 v/ {! v2 Y7 t
) `5 i- T9 W9 O% q( f( g
to do-trust
' y( A. t, O+ W; Tset trust-ok False, ]- I  _9 b' N2 X& ]4 h! F

7 ~( d3 H% V0 ]. t" _/ [8 v* V
) [2 u. {9 X& Y( Q
let max-trade-times 07 K* S' r' ?$ z  F* b% L2 a/ T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( N' r+ _3 j9 `' V; l- W
let max-trade-money 0
7 v8 `1 e2 D, r. |2 G; z( Eforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% _* G1 w: x) [  e* 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 l; e, M& {8 x1 h. e) G% D9 L3 ^) S8 l; j  |4 a' b! J

. k3 m4 w7 b1 T  }get-global-proportion
- E& x- T, a0 q5 m- N! Hlet trust-value* A8 R% t- B5 V2 W
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)

' K- `& e9 f7 N/ F. S3 k+ ?0 Zif(trust-value > trade-trust-value)  }5 \1 d, s/ B$ N. G+ L) Q  d# ~+ a
[set trust-ok true]/ U; ]3 T6 ]" }' ^0 L7 }' B1 \1 F
end3 l, q1 o1 _2 H3 u  f/ A
! w. E  s$ R7 w2 u
to get-global-proportion
3 h" R5 [# A" R8 [6 D8 o# h* c  eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- E7 p8 E& u$ a! e[set global-proportion 0]
/ z  c4 W! Y' d+ ?( K[let i 0
% h' E1 [' {$ X: ]let sum-money 0
0 b' Y" q& m3 q: qwhile[ i < people]
  ?( ~& |: L5 a4 w! j  y[
' b$ Q% u0 m# K' t9 s' p( Rif( length (item i
. U. |/ b( d* p: Q$ W[trade-record-all] of customer) > 3 )
4 M: M9 E. M$ a0 g
[4 n% X, \! @% ^( _( n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 \4 a# S( u! C! @8 g  Z7 y
], V! a$ ~- o* f# e) L5 y/ m7 l! N: c
]& ~" q+ x7 {- W$ H. f! f
let j 0
# [" W) S$ R, D2 rlet note 0
! W9 i' S. }) V6 l  f7 s9 {while[ j < people]
# n* L% |" I5 i3 P/ q[
  `/ _) D/ y) d( l9 S% ?if( length (item i
% t) K  X' T& P: X( s; q[trade-record-all] of customer) > 3 )

5 M9 w! G& N' X[
5 G) x6 M" h: U" P' n: S' jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 u+ s4 @) \, s' ?- R
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! V2 `$ b1 S. V5 a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 o# d" o3 N3 {' r
]
& C( z# R: J" s4 j]7 p5 f* N" K" b- A/ y& v
set global-proportion note9 [6 i2 m. z& v2 I8 m- G
]
$ q9 R) G. M( J0 u$ ^/ h( R8 hend
2 G! l# H; `3 ?1 o0 R
5 a2 _7 U& K6 ^* F% wto do-trade, S% g1 |4 Y' Q0 h# V' k3 w! K: W& ^
;;
这个过程实际上是给双方作出评价的过程# `8 M  v, M0 k: Y' Y
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
9 b* }7 x0 G) m$ f: }/ {set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
* K2 K/ }, b9 b5 Y* Kset trade-record-current lput(timer) trade-record-current$ V" [' O; s7 n# q$ U& o2 |
;;
评价时间
% @7 V: L( x, _3 ?% Oask myself [2 ?1 Y& e/ n6 p, Q; I/ G
update-local-reputation! z( Y" p8 [4 V' ^) q  B
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 n+ D& i0 M5 N" `0 ~8 {# I% q]
" s# _" O8 F. Q, Rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 Z3 {( V3 _5 F1 t- P. d8 E;;
将此次交易的记录加入到trade-record-one1 q" n9 C  x4 a. j7 `" [8 A
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself); z& \* g. C9 v* q
let note (item 2 trade-record-current )4 M  D9 U7 y! c5 b
set trade-record-current
: _& P" ]- y' ?2 U0 d- Q, w(replace-item 2 trade-record-current (item 3 trade-record-current))
* ?* E# f6 _( G) Y# f2 F
set trade-record-current0 Z, @# q! J) X5 B
(replace-item 3 trade-record-current note)
6 F4 s: R; y/ }: L! L% J, v# \- f: Q" G" G: \3 [
  d& G* H- A7 }+ E  j2 C
ask customer [
! t# v4 l, U! N1 y* K. T, s# W& ~update-local-reputation( `! h6 Z7 i8 V% G# `
set trade-record-current
9 A7 G  H$ ~2 J(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) Q- g2 E  T8 B( m* O* x% F5 c
]
1 j  k5 Q: ]  R9 U- V0 \6 r* O+ j+ E6 g8 k$ K  q
7 \8 {  K) o( H4 g- n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 W; n7 O6 V3 n2 u

; d- d4 s8 ?4 s+ `/ s  zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
  ~: A( a- U7 j' [+ A;;
将此次交易的记录加入到customertrade-record-all; e6 m0 @3 a1 E- W& f: c+ |( U
end8 P8 [$ A8 @# Z# f% S$ j5 `" g

- i+ @; j# @5 k* ]2 qto update-local-reputation
! `' M  g1 O: z+ n2 {6 ]set [trade-record-one-len] of myself length [trade-record-one] of myself# f9 ?9 \, D' E8 |
! j0 l6 B8 ?3 o8 H
% _* `/ N! S$ k4 B7 q2 c2 U
;;if [trade-record-one-len] of myself > 3
8 g7 Q: N$ q6 T7 R: X* [* r7 V
update-neighbor-total: E, G7 O/ j1 E6 i/ R0 L
;;
更新邻居节点的数目,在此进行- v+ h7 N$ @  k. f: h+ e; R' w
let i 3
5 s; a/ Q! ^. n( F) z+ z; E& ?- ~let sum-time 08 }+ a) D0 B3 ^  [6 K3 a. q
while[i < [trade-record-one-len] of myself]
$ Y( U% u0 j6 f[* H" x+ A/ S# V- i
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ v) g8 f3 @6 z+ p! `set i
9 q/ P; C# }$ q! }& |! F5 a& G+ E( i + 1)
$ |( K' Y7 g2 D+ f  z' O3 w
]  I/ W" ~/ R1 `$ ~. g0 ?& y. _6 h
let j 3
2 E$ ^1 r6 G4 G3 ?let sum-money 0, ~5 o$ Q' L3 z; p- E4 s! I! j
while[j < [trade-record-one-len] of myself]
) n! s% Q' e* q, K[
' k) Y* G( Z" t( U& x0 dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time), F! I3 @. T9 \: B+ s
set j
" f7 J. R$ k- U! c4 A$ v( j + 1)
: b1 ]$ ]7 S2 Z+ f/ Q
]
+ W7 l$ O2 F& u9 H0 E! ^' J) Jlet k 33 ~% g; y4 ^, C& X
let power 0: R- L' o; x4 @# X) U0 _
let local 02 |: m; [' }0 o/ n
while [k <[trade-record-one-len] of myself]4 [7 w" J7 a% a0 W/ l
[% }/ I/ o% x3 \" r7 K% m$ B8 [
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 D( s7 N( r! u7 l$ K
set k (k + 1)' N4 H# X2 i9 u. S9 [
]7 z# I. h$ j9 _8 ?4 t3 |! c
set [local-reputation] of myself (local)9 \, Z( C; T: H6 K' G
end$ S8 {! w2 w/ Y* x0 H4 r

  k1 _* t- t9 ?; p9 Kto update-neighbor-total1 Q  i% W# Q7 J* O. e
$ `" _+ p* I$ N5 W% O
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) O& ]- M3 }( I- V$ [& \9 L" ?4 J  V

# n3 {$ E0 ~  N* rend/ d  e; H/ }% N0 G
5 T) X( i4 m1 O3 R( P/ j
to update-credibility-ijl
+ I/ B, Y5 v. t# |3 n6 e2 J4 _6 _  h9 [
;;
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。8 [6 E% M+ L6 _% z5 L) R
let l 01 P6 U3 E" V7 ]" b  b8 K
while[ l < people ]% _- u  _6 f  H$ o* E$ t
;;
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. D6 R' `( H7 A5 m7 C
[3 @' L& k1 E+ @( \
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* C2 Y( d: d6 a+ z0 X9 r
if (trade-record-one-j-l-len > 3)7 m# }9 ~9 k% x
[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
/ P1 r% ?, U1 H  W5 rlet i 31 `0 Q. m* J  M
let sum-time 00 F6 Q  @! [# b; F4 Y
while[i < trade-record-one-len]
& b  ?: ^( G( |2 z- p7 q[
' A! ?9 ?2 U/ \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 A7 }0 }! m3 @  s* f% O0 @# C/ J
set i5 f! H! Q1 D3 g; }) V3 \' k
( i + 1)

# u3 O  Q0 b. r6 y' C4 M]
0 b/ Q5 g! f# M% c' v6 zlet credibility-i-j-l 06 }+ N9 \! C3 k+ e
;;i
评价(jjl的评价)' M4 w  T; x0 _; L9 l% S' K5 ?
let j 3
0 D8 ]7 G$ ]) k) D+ C0 O/ B6 mlet k 4% Z. ^1 f) v9 j" g
while[j < trade-record-one-len]
2 N# k( X$ s0 i, _: H) f+ x[' z4 f* D+ B* g) h6 |0 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
( |* ?: t: M, M. A4 \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)
  M0 a& D/ N* x) p. Yset j& ]$ T5 L. g+ U+ e, |" a
( j + 1)
! _$ Y, j* |4 b. Z* X
]2 c9 K% `* Q% j+ Z
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 ))
" {. c# {. z" J. n( G3 u9 I5 C: o) c
! x( f/ j8 i# w6 u& T
5 z: h" E) B: R! p! t& ~
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) U# P- ~* K& N8 E) D+ T;;
及时更新il的评价质量的评价/ c# M% }9 f5 c# B2 N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; m% f3 M. b% b3 @+ b& K5 T$ s
set l (l + 1)
9 y% w2 u6 l" M2 v6 L" y]4 Z" P* E' D# Z, L' O: G
end
! z" `7 o: h/ }. {5 S2 }2 Y/ A& |4 ?; Q4 x
to update-credibility-list
/ [# K7 J' V/ W0 H( M/ U6 t, i. klet i 0- E& D3 I) m" O0 p' E( V9 p3 O, Y
while[i < people]7 X) r  ~. H7 ]+ w+ g* O2 ?) e
[" c# W! ]) U3 f3 @2 o
let j 0
; e4 H! @# O4 Ilet note 0# J1 o* Y: ~0 U, S; z0 K8 g3 t% e) i; O2 `
let k 0
9 L) F+ C$ k/ M; v5 {# w- k;;
计作出过评价的邻居节点的数目. H8 i2 E# c' b4 _' _
while[j < people]1 S8 I8 K5 p) ]0 p2 K, A' R$ m
[
+ L* N% U/ r, }/ R. d+ b5 W! D; jif (item j( [credibility] of turtle (i + 1)) != -1)* H9 u  S! p  |& w
;;
判断是否给本turtle的评价质量做出过评价的节点
3 G. X8 R1 e) i7 G: `" o[set note (note + item j ([credibility]of turtle (i + 1))): c/ y9 U" g5 S  T0 Y
;;*(exp (-(people - 2)))/(people - 2))]
; p5 l, v8 N2 e4 s2 s% n
set k (k + 1)
0 k6 s1 s# f* F" m$ N3 F& v]1 z9 y2 ~0 j, B: m- y) E  @' h' p
set j (j + 1)
1 M6 [0 x5 Z- x) Y9 j- C# p- _]- ]0 f3 W* |* X. r: [
set note (note *(exp (- (1 / k)))/ k)! g$ r; e) b: N+ Z3 ?7 ?, z
set credibility-list (replace-item i credibility-list note)
/ C$ Q" q3 Z% [. u5 ]6 _set i (i + 1)
5 w1 K2 k* F. ]! N* z% N]) e( R( }2 `' v$ _- y1 ^
end
4 O8 a1 Q$ M1 g! m% e2 c- {4 a# k5 t3 n9 Q2 x
to update-global-reputation-list
; U% J- d6 B7 L1 u; n/ olet j 0
2 X/ ?9 |; l4 U" @while[j < people]! V+ |7 c( R" r) s- ]7 d  ~! v
[; Q" \  |/ \+ d
let new 0
6 x  X( l6 Q; J8 G$ x9 x+ y;;
暂存新的一个全局声誉
& L" U3 I0 ?8 K' U( I4 blet i 0
* g2 W4 v3 Y5 Rlet sum-money 02 b0 a1 }) n" ^( k1 Q- `) g
let credibility-money 0
' v/ J5 F6 b0 u) B7 T( I6 pwhile [i < people]
% G: U  O) _( [* A" c0 N[. U0 K# ]" C' X
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): v* E9 B6 z% D  G) _
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 H: i6 g0 D* g2 ]set i (i + 1)4 I8 t0 B( x" P! M8 r
]
6 H( U7 p+ Y5 A/ F6 l8 c2 d/ Olet k 05 Y6 m4 O3 e4 R5 T& f) Y5 a9 b& f! |
let new1 0
  h: l  }1 S) a! w* Awhile [k < people]7 g/ e) ?! M* a7 n4 {
[# s2 f* m* w3 H/ p( x# w1 s
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)* [( u- J( y# W
set k (k + 1)
# ~& i" y+ ~. x  g, ?]
/ p0 P0 B# y7 T8 ~& l: ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; X( x/ Q0 ]5 @. f: h3 Iset global-reputation-list (replace-item j global-reputation-list new)
, F& y' N+ c1 _set j (j + 1): P1 }3 C* |2 t' ^
]
- w" @* D% I4 v* [end& V) q  H; P1 R: i
  A; ^8 J. e7 ]+ o

9 U7 @% y1 j+ y" l2 ^
5 P2 K* `( d2 F) |! Q0 E, u5 w( o1 ?  rto get-color! G( }( y- g* J

9 A# b( {$ f0 I% h# a" _set color blue
) U# X0 \  n' Y- R0 a
end
0 j4 D9 N6 q( z. Z/ I$ E5 W1 t) i' i+ H1 A$ x" R7 D
to poll-class; d' _9 _" J% b5 ]( A+ z$ J1 N: L
end9 S7 {' O$ B$ W+ k4 {2 O

& d0 p) x/ B( P3 M* M# Q! v3 eto setup-plot1: s* C& G: p# b. @& p( a
# ]! Z9 J, g1 S8 [5 i! G
set-current-plot "Trends-of-Local-reputation"
  f0 l* E' I: V" V% \
* R& I) }2 C/ ]: i' ~9 T! W3 `
set-plot-x-range 0 xmax
% P( |+ z* S0 z- l9 x4 F# |
5 h  I8 ?( o3 q& N$ ?7 f7 S
set-plot-y-range 0.0 ymax

. i3 ]9 i. v' r, uend. U& R2 s( l/ L5 P' j; U2 b

9 v& ?% {  L$ t. w. R9 d- V. dto setup-plot2
+ {$ l3 u" u2 [9 C) r* L1 q) }+ {# p9 T- E2 I0 R# x
set-current-plot "Trends-of-global-reputation"

/ j. O& ~6 W6 V/ b9 Z3 q
  H& X, ^% L1 z) o* eset-plot-x-range 0 xmax

' R$ X7 R  H" }
/ k# R) `" o! n6 k6 r! s# A9 L$ |3 wset-plot-y-range 0.0 ymax

' a; P1 E7 A' s' Oend7 {' i9 t: |- _$ |9 m* b

2 }% Y+ W% _3 {+ W# Lto setup-plot3
6 n0 K4 ?& T9 m  n# I
# H) ]6 d' H* H' z; d, Kset-current-plot "Trends-of-credibility"
4 C7 i$ O" {- }, _; ]
, u+ g" G3 o# k1 D8 d% z
set-plot-x-range 0 xmax
8 F$ y* E: ?7 {% h; N6 G$ M2 w

/ b( J* @! ]. L' E5 w( [set-plot-y-range 0.0 ymax

8 H0 A* n7 |0 h' d) Y8 p$ o8 H6 send
1 T  Q* |6 w2 z, c% \! \6 f
4 ?$ A4 u, z( Z! G4 N2 Vto do-plots8 I8 L. r6 W5 `$ M: }; I9 u7 l
set-current-plot "Trends-of-Local-reputation"- h. C' H; `# S! i. o* V) j, O
set-current-plot-pen "Honest service"
0 R1 m; V% n$ B) Q7 T  r4 \: M* lend) e% }+ H2 ?, `5 L+ j0 @2 e
/ q& }! m) K7 E7 i; p) K
[ 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.' x$ O7 I6 Y" t. I

0 a; ^6 x) z/ O& w0 K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, 2026-7-7 03:37 , Processed in 0.021336 second(s), 18 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表