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: 14440|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:
- F8 l9 @9 m$ @9 v4 Tto do-business / G! f+ \3 b4 b& g
rt random 360  @) C# [6 e9 R' B& I1 b/ h
fd 13 l( _7 E( s8 ^9 d! C
ifelse(other turtles-here != nobody)[
, D9 f; {  f) U9 Q- 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.& D& Q. G" ~7 y, i
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
# S' J& P- T1 Q7 o. o4 e   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
' L4 J) V3 `9 z   set [trade-record-one-len] of self length [trade-record-one] of self! `& O7 `* }* r9 A7 r: r1 G# k( F& P+ L
   set trade-record-current( list (timer) (random money-upper-limit))
! D! n4 L  F  O3 F; r5 U6 Z* \5 f& @6 c1 x: U  l! y
问题的提示如下:8 G/ Y" y( G7 S2 \
* b3 h7 S% @6 J
error while turtle 50 running OF in procedure DO-BUSINESS; l: P* e) x8 l; f, g
  called by procedure GO
# I; v3 j% H+ ?6 t9 {OF expected input to be a turtle agentset or turtle but got NOBODY instead.
3 X, i/ \4 f3 G9 z
(halted running of go)- ]7 u" Z6 W) X6 |) r" _% E
, B; |  g9 @; d; G( L* 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~~. V( c/ `. c7 v% D+ @; {5 w" c
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
2 w, j; R' Z0 Y1 ^globals[+ n$ g: k4 U/ p% C/ O2 I
xmax
: i2 [; v- K/ f( h1 oymax! |0 f& I) }( r+ h( ?1 @
global-reputation-list5 Z, e  [5 e5 a- e& L( e
! w( o$ T% L; B# p2 X8 g$ C; p& e
;;
每一个turtle的全局声誉都存在此LIST" F2 f# q7 z" a' i* c& {* n
credibility-list& m- ]. R8 d7 K% t( B$ q
;;
每一个turtle的评价可信度$ f! D, @0 m5 v, R$ P
honest-service) Z% x. O. I: ]
unhonest-service
) }7 y7 H( V( k' a+ l! ]' Loscillation: Z1 E4 K4 ]9 H! I  S' Q) Y, Y0 J
rand-dynamic  e8 @& _1 l5 }% c& d, k' K
]6 d: R# T/ y! g! ?

' k  p# m) I  u# M( f7 Qturtles-own[
; {3 j- b* E6 rtrade-record-all, O8 V8 ^, b5 n, A
;;a list of lists,
trade-record-one组成
% W& Y: G1 Q& l5 g% n* W5 m& Utrade-record-one8 I2 b2 z$ y; I4 z2 s( K* \
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
! g3 k# v" \2 N( n) j) x
- O' e, N( G8 H! w. o;;[
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]]$ h8 j1 X5 h# |1 a4 Y% Q
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]
! f6 p$ S5 b- l3 u" icredibility-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
/ P+ p3 n8 J# {/ Bneighbor-total9 W; T' b/ F6 u! T3 k  T
;;
记录该turtle的邻居节点的数目
7 d' m5 M* `) A& J) ~trade-time6 @+ P3 s3 o9 G" @* P  A: P
;;
当前发生交易的turtle的交易时间
$ F) ^0 p' f' _4 ~' k( cappraise-give2 @4 C$ [% z& A
;;
当前发生交易时给出的评价  M4 z3 d0 E6 ]2 T  {
appraise-receive
% p& x$ D) k' [8 |- B: x+ D5 L;;
当前发生交易时收到的评价
, j* w1 h. {$ g' t$ [) Bappraise-time; ^) j7 h1 x8 D+ V( s7 v
;;
当前发生交易时的评价时间) R9 u9 T; m4 w3 v
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: d9 n& \, q/ y3 G; z2 wtrade-times-total
$ h/ @2 e" d' g. n0 i;;
与当前turtle的交易总次数& ~. V8 |" _4 l+ R1 K9 A
trade-money-total* D) T/ A) {& O7 P- v
;;
与当前turtle的交易总金额
" Z6 F4 s% {( s. V2 ~0 elocal-reputation
0 f# V. V& r- Mglobal-reputation
! e/ E" t2 C3 Z1 r- T, P9 lcredibility
4 D3 ]8 z8 {& k9 B' T% k8 f;;
评价可信度,每次交易后都需要更新0 n" K  x) M8 p2 U5 m
credibility-all+ b$ J0 m& ]& Q( L
;;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4 R/ @! C) X: T8 F
  w5 K. |/ e/ _: S7 y! Q3 v7 F
;;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
" ^  D4 X' j6 k# p6 z7 ~8 a5 jcredibility-one
% [1 T4 Z' F5 J# U. O;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people
7 I8 j0 t: |! [! f/ X/ V. rglobal-proportion
/ V+ ^! H5 X( H' Kcustomer$ l* a9 O) {" A
customer-no; K/ z3 N1 {9 o2 j& x3 D
trust-ok
  M" W* O% t. o( [' _trade-record-one-len;;trade-record-one的长度
+ p" c& K+ i" y7 x]) |$ Y8 `- o" x

0 K, r# V8 A3 Y6 r;;setup procedure* ]: }8 x$ {5 c

& `1 i% `; p  d, D/ }to setup1 A! I. \1 T# B1 K7 m# T
. A0 m3 Q5 {! X6 q/ B. v5 s0 x
ca

/ a8 t. D# c7 V% _: n% o& u4 o0 N
+ e5 A+ S: t, ~$ B  Rinitialize-settings
. l8 h0 B3 H' `7 L0 |2 m* j

( m9 F' k  @- b' T  R2 N$ P4 Ocrt people [setup-turtles]
6 D& u' R2 \4 l* b# p

( U  \* @9 x! `! j( D) nreset-timer

' b. e1 o0 Q! N- `) v9 E  p& W4 a* v/ p8 O' G: B0 }! J; H4 M
poll-class

+ T; g! u8 |+ M3 o' k0 U; Q
% q) [7 L( V  E" O- i# Vsetup-plots

) N5 \  ]) K. z) c6 |  q2 q8 f2 A5 ~* ]8 v& m
do-plots
" E" k3 ]3 h$ x% C& k) ?' y
end. s* b! f, M3 j. @1 F4 Z

' c$ ~# b4 F$ y: i, C% fto initialize-settings% y$ t1 E! i/ G% _3 e( k9 |' N- M) a
- D# |# B0 }" ^
set global-reputation-list []

) ^* ]' p  l5 n# A5 \
( D& ?" \1 g9 jset credibility-list n-values people [0.5]

( b8 [2 H; q1 |, t- d; O% z$ o' Y9 W: O; m
set honest-service 0

* @2 |) R! C4 i% t  u- G6 [- Y. m* v/ Y% m3 H: N
set unhonest-service 0
* m2 h! p2 e+ w" Y7 r7 \/ Y

0 \. Y0 d# H% f. a! d$ xset oscillation 0

$ a& m* _5 W! O6 }; p; G
! f' `+ P. D7 ?/ ~7 mset rand-dynamic 0

" g& h# ?: o* y( ~# U- `8 P; Aend
8 Y9 I" u9 X: S4 t9 a/ P
  r1 b+ m+ A9 C9 gto setup-turtles % e% s7 D/ U0 J8 Y$ c  q  q
set shape "person") Y5 I1 A' |, F8 {: d1 y3 M
setxy random-xcor random-ycor
$ W& i. }9 w9 m' p1 d2 Sset trade-record-one []7 b! |) ^, {9 Y$ Z' p+ _
: x4 V6 T  `8 o! ~! [6 \
set trade-record-all n-values people [(list (? + 1) 0 0)]
! h9 o1 O! \0 j( z: Y1 K

: m. @9 m# J1 k9 Z' Kset trade-record-current []
" p: t  S5 S( T- Eset credibility-receive []/ U4 P9 Z7 I5 L& x
set local-reputation 0.5
4 B- R1 M  `$ F; c, yset neighbor-total 0
* F6 ?$ \) E; i: J3 V( z) X* fset trade-times-total 0) _3 J3 K  `1 M; [0 c& [
set trade-money-total 0! [" }$ u: `, M- }
set customer nobody, u: j+ c  j. a
set credibility-all n-values people [creat-credibility]: c- H: @/ H' Z$ A* D- V4 _
set credibility n-values people [-1]
4 g2 J$ L% F9 e- w6 l! W6 K8 T9 Eget-color
: y4 v. c/ A- b+ s
1 P7 Y' y3 {7 ?' {8 G2 [
end
5 r; s) F& W% u5 d
7 Z  j8 v4 U7 r) Bto-report creat-credibility
+ p  I/ f$ Q9 r; r( C2 t  vreport n-values people [0.5]/ j8 [2 N% p+ ~/ n. P- ~: k
end
9 `4 N: Z2 x* N* f
. ]- Y3 _: `) P; A& ]- c" K- |to setup-plots* \% v# W3 x; j) E5 }

( U0 K: H3 ^& Jset xmax 30

. F3 y( I+ b9 j
. Q+ @& U, V( p+ _( ?set ymax 1.0

$ U7 o; h( o$ ^  m+ d- \$ ~* \2 R' _8 b  @7 q! @
clear-all-plots
; R1 n; m. U; C1 S% U& j

  s/ R" I. u- q; G9 ~! u& ^9 osetup-plot1
' ]3 t* ]& G, G$ ^6 k; s
  ~# c* G; Q6 H' f$ }% t, f
setup-plot2
7 W  P8 W/ q4 ^  E5 `* f

8 C3 R! b/ [+ d+ C8 Gsetup-plot3
. z  s  g! a6 s; P6 `
end
' t6 E6 y9 ^  w7 Q
  W% X1 h( b8 P. i;;run time procedures/ L% P" ~$ N" w; L3 m

9 q, \( w0 c) Hto go! @2 I. _6 C! L  U+ L9 Y

5 A, k7 T8 S! z, l" m  |" z& H; W" f" task turtles [do-business]

, R4 I# R( X1 u) Y1 Pend& ~1 E: E' R# x, _

6 V& g0 H- a* K6 Rto do-business 6 k6 r  s! Z, w( D
) r" I! k0 g- p7 Z

% ]$ s' U" E/ ^& u: E- Q: q0 {rt random 360

# Z6 T8 b1 w2 v4 Y3 K! e
1 I! R2 J' r' `- ^fd 1

, ~8 ~+ Z% D8 x# R) t
$ Y4 r, |2 `& R* C, A5 fifelse(other turtles-here != nobody)[
8 x- J5 R5 r  f
5 a) q6 R7 @# o4 W) _6 d
set customer one-of other turtles-here
) ^! j) E; J2 W5 V" m# X" u& Z& W
& v0 u+ L+ I1 |- D$ F1 F
;; set [customer] of customer myself

' K; I0 Q5 j9 i1 V; X! j% n; J+ c2 g* h! M& m4 T
set [trade-record-one] of self item (([who] of customer) - 1)
6 `9 o, [+ w6 ^) P3 I[trade-record-all]of self. s3 \& g6 i! Q# k7 P1 \9 D$ X$ {
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% S5 p0 o7 H: W& s4 _( \/ {3 l

7 r% h3 M- j& iset [trade-record-one] of customer item (([who] of self) - 1)
6 t2 }7 B. _" p[trade-record-all]of customer
3 x( C! h4 L- Y" M5 Z

' \3 |$ }" _4 d5 A7 D# ?" ~set [trade-record-one-len] of self length [trade-record-one] of self

, k8 ?0 I6 P  _/ j* P) a9 V# K* Z" y# E1 a: R
set trade-record-current( list (timer) (random money-upper-limit))

" h( X- q3 U7 `3 z- E! D! f7 Q# |+ `4 z
ask self [do-trust]5 E0 i. j& L! }3 w$ L. p8 v: T, F. g
;;
先求ij的信任度5 x# c9 L+ \! k+ l* S# _
( K+ _% R4 G  s2 ^; V' q& H
if ([trust-ok] of self)
7 A/ J8 M$ S5 D  D;;
根据ij的信任度来决定是否与j进行交易[) D9 o+ L- v7 z  R5 d( S2 v
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
3 B% u! ^- R% k; G; G% ]' B1 P2 m  H6 I: ]
[
8 ~" `0 x8 I) z- d, ?( P

- c; d3 n, |+ P7 B: |' B' ydo-trade

9 L# t2 I# b; h7 p
  t3 U6 c! p: ]7 Kupdate-credibility-ijl
2 D" @7 q1 s5 r; |9 C/ M
2 a. _1 E. G. z0 c( F; x) o
update-credibility-list
" i5 T+ H- p0 t2 \4 B

* o& y6 c$ d$ @( t- z/ W* Q& n& G7 x% N% M  C( r  e7 G# ^
update-global-reputation-list

+ a: z/ \8 w5 o2 \
+ n" @. [5 @$ D1 Q* q( Q  F1 J1 c9 ]poll-class

; u4 e9 `- E  N8 K! Y6 M% \4 l) n+ u
get-color

. X% H- y2 S6 ]/ Y4 F# r
' k9 A2 e; Y" K) C5 P: m! N$ t# E]]* r0 x2 ^. i: @! R9 Y, {0 c
9 n# R6 K" @  _8 V1 f/ T' m/ [! l
;;
如果所得的信任度满足条件,则进行交易
2 g" Q5 C  k8 ]0 R2 ^$ m, {+ W
- `- M' K: ]0 [/ p8 `# I' x  d[

; H5 t& {5 I4 I2 I) {6 Z
% I9 h5 B! x6 \* }rt random 360

) ~: H  g  M4 G3 a
  O4 ^7 s! _9 G: k5 Zfd 1
& A! m+ V. ~% f( R; Q

. Y$ `+ M4 R) h) G' Q, w, |4 Z]
1 \) p9 l# K3 I" Z2 e

1 X! I+ B2 e5 P# p* F1 Q5 Iend

* d) e( F9 C- ?9 v4 o7 d" K
3 ?3 f$ _8 A& ^1 O4 E# ?$ Ito do-trust * {3 G" l$ I" ^8 \: c, v
set trust-ok False
- M0 q5 t1 {; r5 \" J5 R, q0 t. s
: Y3 I% ?" N/ y& f' N  B8 G
let max-trade-times 03 A& a- P* K. k( L9 W! Z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 F( U, K, P3 {' M& G3 _
let max-trade-money 0" c& J. r5 k( w* E2 R. Q6 M( E% Z% i7 A+ L
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! Q  r  [' s+ W$ c% [5 olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" ^2 F) t, l; Z' p6 i. K) g( K  z9 M; q% \. U

$ i1 s" C; D, y( R# k2 sget-global-proportion2 t% _2 \$ l1 r  s: L" ~! c
let trust-value
0 p; d5 Y& s& t3 C- |8 w8 p/ Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

* O! h2 S3 d6 S8 e4 O) A% Sif(trust-value > trade-trust-value)9 K' `' X$ [" `$ b$ I# S# x
[set trust-ok true]2 p/ b" v2 ~/ x3 n& |
end
+ [: ?, {3 I9 i# T: |$ @5 X9 T$ o2 p, c8 Z4 u; k# H
to get-global-proportion
. O5 T$ x  \9 X" t8 Kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) t. o. @$ u$ a# W8 j6 n
[set global-proportion 0]5 |+ P8 ~8 a; V& ]$ U
[let i 0
+ U! d& L# h1 Alet sum-money 0
" _$ _  p+ L+ b$ W" Z- |while[ i < people]$ M* D+ c8 @" i" Z- p8 R; K2 R1 W
[- F& A5 E5 T, V, w
if( length (item i3 t* z) {+ L" t5 f) l/ {
[trade-record-all] of customer) > 3 )
  K+ c* Y% ?* s, h1 L4 b& _
[
! m: f+ E/ }  v1 u+ qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ i! b* s5 Y' @6 U8 t, d/ A& B]) l$ x( r) w( ?6 ]6 C, F, t
]- A( j# O  L7 |% j2 I/ v
let j 0
. p* \# H# D4 c2 n' C6 ulet note 0
5 G9 t6 D( k2 y* qwhile[ j < people]& i. F5 E  C: }1 F
[
' _: G, e$ p3 }2 W1 N0 \if( length (item i0 J0 i% ?# K/ i) H$ r: f3 N1 \
[trade-record-all] of customer) > 3 )

1 s, X$ m2 N( [( w* E[
/ h6 h! p0 C& h" {; Jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); g3 }$ X/ P/ P8 `/ }6 z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
4 X" {+ A- p* C, A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( `% d1 i' Y- r# Z
]; \+ o; h. }/ Z' R1 r
]% x. ?8 w5 w' ~
set global-proportion note# R0 }7 _& [( n; x6 Z2 Y1 B
]
1 I( \! D5 j: ^  C6 p$ \- e& Vend" U! ]  o1 T* N, D* ^
; U$ B/ W1 R7 y- Y5 n# K0 p
to do-trade
1 x0 r  z/ j9 `;;
这个过程实际上是给双方作出评价的过程7 k8 _1 d- `$ x4 x
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
/ L8 d) U7 ~8 b2 S' R- e0 U2 yset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
* S( g$ J9 a( x9 n+ N0 Dset trade-record-current lput(timer) trade-record-current; F3 ~. l3 ?. U3 N4 R
;;
评价时间7 V0 ^; r7 v( g" i3 ~3 [$ R
ask myself [
+ |0 C# b, U" @6 o+ c$ fupdate-local-reputation
# T( Q& q: @$ m$ }9 j$ Fset trade-record-current lput([local-reputation] of myself) trade-record-current+ o9 N0 i3 S1 l: u/ Q
], \5 g& |! D8 e! E  {  M- O. `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ H: y; j) S9 g4 n4 @;;
将此次交易的记录加入到trade-record-one6 L2 z/ A# }/ e4 L# S4 A0 p
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% A) u/ d7 v* z: @) N: J0 D$ D1 _+ ~
let note (item 2 trade-record-current )8 T9 u& B: u  }8 n
set trade-record-current; u' ~, S, m* P; S  U% q
(replace-item 2 trade-record-current (item 3 trade-record-current))
4 a( L8 A1 L, z0 j2 }+ W
set trade-record-current9 v* P8 B+ W, J, A  W( ^1 Y5 f6 h
(replace-item 3 trade-record-current note)
, U; W! w+ x; A# j
$ h, m5 T/ D% x+ \: ?0 k
3 r, R* i: z  e
ask customer [4 h- X% R0 h7 C: M
update-local-reputation" u, ]+ k; X. Z+ Q4 K, @
set trade-record-current
9 x; t2 P; Z( x$ [: C(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. r0 [0 a3 d  p5 h6 X9 H
], H( G7 E0 w) F+ ?; H+ W2 k* g
% c9 x- U( c6 G  `

; D: U) `5 \/ B9 l2 `; e9 Sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, b0 u  D. y2 M) ~7 T$ u# \4 K

+ o9 x2 ?6 J6 R: S* {4 @; L4 m) y6 Z2 Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( T& @0 F* j8 O  Z( @;;
将此次交易的记录加入到customertrade-record-all
' j' N: b7 z8 R9 u  O- W% K0 J( Z& q3 dend4 O% i; i5 V5 r
0 Q( M. P7 ~: _5 i. g* m
to update-local-reputation2 V* W, ]" Q% G2 K
set [trade-record-one-len] of myself length [trade-record-one] of myself
9 j" j6 h2 w! [! z
' X; l$ @" }/ u! r* k6 t3 x, w' z0 U" o3 ~; i4 n9 }
;;if [trade-record-one-len] of myself > 3

  g( c) s0 v+ B4 h" ]' Z6 ]; [update-neighbor-total
0 i' i" s1 f7 \;;
更新邻居节点的数目,在此进行
0 S3 a7 _4 y" q# K+ qlet i 3
% z% f5 V8 ~2 q8 c5 wlet sum-time 0
# S1 t$ l. m/ J1 W  _& dwhile[i < [trade-record-one-len] of myself]
5 y3 [# T9 }& s+ ~9 i& H- x1 v[
4 r, K9 r2 B/ q4 g, O. Eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 }, ^. \( C7 g) v8 u( K- dset i. s9 Q. Z. {& J6 v+ K; o; |
( i + 1)

' E, V# f; w% ?" ]. f" Y0 ~4 |]( N) I0 d* i+ \* v
let j 3
9 I' N3 z: F& i5 P  H) Clet sum-money 0
1 [* n* ~# O. c) xwhile[j < [trade-record-one-len] of myself]
, u, j# v! O! a5 E0 m4 g6 V0 n2 P6 C[& q) c/ J' e2 w3 A7 d! G" [
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)2 Y! a( a. m# Z! q3 J
set j
1 b4 c/ {" l  n5 P5 C" l; N/ b' t( j + 1)
" T2 y- [  B6 h9 p2 S$ `
]3 A, [3 [( o% K1 E4 d. L% e
let k 3- y' y- I8 c5 h2 h' K4 l  k
let power 02 _, G! z# q, e6 U4 _+ ~. O8 s
let local 0
* y7 I) x0 H$ nwhile [k <[trade-record-one-len] of myself]: g/ E0 }9 n7 |9 b4 ]7 Z1 @) p( p
[0 z3 P9 q& l7 @8 ?! u( E
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) % _9 V3 u  Q$ n" J
set k (k + 1)
/ {% i, [7 `0 g6 {. ]  Q]1 k, d8 E6 [1 Z  U1 b6 w2 X* x
set [local-reputation] of myself (local)
& L" B# f# C$ P, W$ Tend) E$ G4 W2 C4 K/ @& O

1 S1 ~1 K, s$ X1 R8 v) z% ]* F2 {to update-neighbor-total4 @+ O# b+ W4 s- G' Z
$ A3 u$ y6 L8 s8 W. N" y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ a5 E, g* A5 W* s0 c2 y' \. d: G  [- v# Q1 R5 ~
& p7 X1 ~. }, p/ H4 N
end4 f+ y- Y3 E4 |8 N7 i

! N4 Q$ j. ]$ h6 f. P$ lto update-credibility-ijl / I" C; c& l7 Q+ v, n( j3 }5 \

& d6 S% x+ M! h2 x;;
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。
- [1 M* h" ?6 V, P' Alet l 0
# N* Y) f9 X9 H) u  }- Ewhile[ l < people ]
, h" z! |: }4 z+ `! d  }% P;;
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. z  M3 S* [0 y4 g0 x5 [1 V
[+ z5 ^, X3 ^' _: v2 a
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ R$ e' c) U& f. Q9 C3 _: q! v: t
if (trade-record-one-j-l-len > 3)% `# l' C8 V) i9 x# x0 d+ s
[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/ i# E& D4 U/ R- g+ E: {
let i 3
) @7 u. u( K3 [1 b3 }' i0 S2 _let sum-time 0
0 J  J6 M1 p2 P! Kwhile[i < trade-record-one-len]" p0 c7 y# m  p5 ~% D4 @/ a! T3 C8 e  E
[, f8 v" z1 B  i5 v0 L; |" G/ r
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* B" g) U5 k; n1 s; l/ qset i
3 y. M8 k$ Y" [/ X6 S( i + 1)
  I2 N: j- Q( u
]
9 x7 w; D3 O2 A! h2 ^  qlet credibility-i-j-l 0
8 L! F# f6 t( a$ T: X; g;;i
评价(jjl的评价)! ~) F0 i9 A' F1 |. a+ h
let j 39 U) H( D2 W9 j' J' [7 v
let k 4$ a3 [$ G$ n' _5 z! e
while[j < trade-record-one-len]8 U* }- `( C* U& J
[
/ k' t; M6 M; _% J9 D8 qwhile [((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
/ f4 D4 F! G: Z# s* p( Nset 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)& w1 e6 g! h) Q% _* s4 U1 _) s
set j
# p: Z8 H* T7 @7 G9 C1 y* ?% w( j + 1)
9 R( w7 w0 P( F: ]" a4 F3 G
]
) o5 D  }) s4 M1 Z8 @' Sset [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 ))
$ a' n* ^& s4 D2 N/ Q1 J8 E6 _, y4 r$ k+ m% h$ K2 R% T
! o6 F! Y- ^5 C1 U  k9 l
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" E. @- M2 T& j* O4 K  g3 t0 q) r;;
及时更新il的评价质量的评价6 H' o' f' @2 I# P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' Z$ E: \$ m. n& c/ f) G6 |& `- gset l (l + 1)
" N' L% ]* b# p& b  k]
; g) ]$ R5 h# s5 m) I3 B1 e8 gend6 s, c( [. J0 I. ?8 w
( R# d# O( w0 ^
to update-credibility-list
; e" ?4 {- |- Hlet i 0
7 l; C/ a6 ^. W- J4 [while[i < people]) B  W# f* A( b+ B) K
[% W: v! i4 A. C
let j 0
# p, L6 ?% ~# q- h7 Glet note 0
, z6 u3 D1 U1 b5 W# Y3 O: }$ plet k 0
$ v6 ]; W3 K/ T1 w; P;;
计作出过评价的邻居节点的数目
( }: O, l" h* m  F/ k. K: pwhile[j < people]
" Y) J" }2 X" y% E5 R% n( K- ][
2 M* c7 d7 G  J7 t$ ^if (item j( [credibility] of turtle (i + 1)) != -1)
1 L2 Y( N* u. E+ };;
判断是否给本turtle的评价质量做出过评价的节点) k$ F! ]4 ?# `9 M7 w
[set note (note + item j ([credibility]of turtle (i + 1)))
8 @$ z- p3 X! e" i' |( y;;*(exp (-(people - 2)))/(people - 2))]
* g7 S/ i# T9 @8 F, S0 \& h3 ?
set k (k + 1)
. Z; N. X% g) i6 ]; ]0 T  _]* v8 a$ C  M4 X- j/ u$ ^
set j (j + 1)% ^/ a1 `3 _' r5 A0 _
]" m' W% U! G8 E# ~; D  H" ?$ f
set note (note *(exp (- (1 / k)))/ k)
& h* }! r# {9 A5 w% U' ^+ q  m8 T4 bset credibility-list (replace-item i credibility-list note)+ e9 ?, w2 ~5 d: O- ^. Z1 x
set i (i + 1)- H; L  ?$ x8 x% P& c8 j
]
) y; Y( `0 n/ W- y- j- S& Aend4 ]& a8 B" T- s2 [. r
1 q7 x& Y0 [9 m$ |( i3 A
to update-global-reputation-list
2 y8 \# E. V5 q9 E+ ]let j 0
1 a6 m+ Q5 z. u4 Swhile[j < people]
2 g) E$ z& O3 N  E$ Y[
1 e, c* M3 G' glet new 03 G- u+ R9 `3 Z
;;
暂存新的一个全局声誉2 [# F" }+ F8 v1 ^; C3 P% v6 S8 m4 d
let i 0
1 z0 o$ `4 c$ f( t# E8 I" f7 y; Ulet sum-money 0
' u% Y4 c& g0 l7 t( llet credibility-money 0
! O% Y2 R2 U6 F0 V8 E1 Swhile [i < people]
" ^4 j! ^! `& \! E[8 p3 Y& W9 o! C1 R1 ?# S
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 L; O7 F8 v( Z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# W6 p! s; t% s
set i (i + 1)5 e6 ]3 _1 O4 b2 s& w: S: z$ x  M
]% I" v3 a( |+ g) ^* r5 m
let k 0
, J$ q  p* J. n9 L0 C* v. v8 g( dlet new1 0
; z9 y1 O5 F. l- u  jwhile [k < people]
3 ^$ F0 h3 G+ T- Q1 `[
, k+ N% w/ R( R; b8 |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)% x8 h. b& P$ U& L8 k
set k (k + 1)! d5 B) O) }9 u+ G
]
5 b6 c2 S0 k) h, G" n* ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 h, {) y; d  Y% t: R* W0 s: Q4 T
set global-reputation-list (replace-item j global-reputation-list new)2 d: @  ]6 m( G$ x8 U3 ^( E
set j (j + 1)
- H- y" Y- t  E8 t]3 ^: i0 \& W1 w' e9 x
end; p( s: o6 _  I9 Z
" u  p8 @  }3 M  C' Z2 q/ f
9 J3 D% a* @; d' H0 z$ `: X, M( {( Z6 h
* u: O/ }% R3 s$ j5 W3 f/ ?1 Z) z
to get-color0 o  A9 ^2 e) S. r6 q9 f
" V- L8 o" c! y2 l9 h# C1 P% T' v
set color blue

6 L: }8 [( \* k/ r  q2 v, [, vend
  j5 l& h. v$ K" [, L: n6 w( K+ O. E
to poll-class; B' i3 v0 m4 C, `! q, m) q
end
' m! ]# F$ j  }4 T- W. i5 q4 j, i1 ^6 A
to setup-plot1
; z1 T& d1 y2 d/ j; p, J
+ u8 V5 u  m, U* n' eset-current-plot "Trends-of-Local-reputation"
' p4 l% K2 C7 |( Q/ V9 h$ `

( K* Q8 J# O: Y1 a+ Iset-plot-x-range 0 xmax
# h% O' _7 ~% _3 _3 \) E: j' W* Q' N
1 ?3 e8 K5 J2 q& k2 q9 J* p
set-plot-y-range 0.0 ymax

9 ?8 c# ^6 i9 y( q9 d7 i9 Iend
: Z; i) j6 X  O. `8 q4 L% C9 p9 g/ E* g3 g# `' ]- ~% S: J2 N
to setup-plot2
" H& Y3 @$ P) S0 v$ k
: B  t" v, J, t1 }: Dset-current-plot "Trends-of-global-reputation"
9 a5 ~, T; [1 i4 p  A; O

2 E" {6 q, z. W! ^; X2 lset-plot-x-range 0 xmax
/ s, S) T# o- }
) c( r7 _" a" }! N! i- F
set-plot-y-range 0.0 ymax

5 P/ u: z9 K7 G+ K. q* u: p' z, `& ^end
: e6 D" A" v' }
! Q7 q- ^( L, H8 jto setup-plot3
! A- N  Q2 ]" l: j. U* w' s2 i) \4 \& M+ \6 m$ p6 F
set-current-plot "Trends-of-credibility"
* [. c* s" E) g7 x. F# s

& p5 L/ S$ ~! s8 X. K( Vset-plot-x-range 0 xmax

* [9 i: `; N) _6 \
; j7 t3 Y, v; y( {' s/ \: {set-plot-y-range 0.0 ymax
$ g, }, P9 _! `; f4 Q1 z
end- _1 G) P$ |0 c9 B' i$ d
( h; }2 `3 d' R% u+ q$ Y
to do-plots4 J" R8 b2 W0 V
set-current-plot "Trends-of-Local-reputation"8 l/ U8 Q9 J: c% T# D) J$ f% \- R8 v
set-current-plot-pen "Honest service"% y/ U0 c! j+ F6 u+ x5 B; d
end
0 D, f3 f6 s* ^- l: V  {3 K4 E0 ^# t  R" E/ t  p* Z. w" X
[ 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.$ g7 h& e$ n8 P2 x& j. P6 S

; c  h# r2 T  g+ C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, 2026-5-8 20:03 , Processed in 0.043153 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