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: 12569|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:
6 P8 B2 I- K7 A4 y& Gto do-business
5 |9 E7 _! G* d' L rt random 360+ Y$ _; _7 E) {4 L7 H
fd 1- m, m4 k0 z  }' X+ v
ifelse(other turtles-here != nobody)[. l; i1 n# p& f3 v. e+ K2 |! b
   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.
. E1 ?4 [  C$ {2 U   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
6 R" ]( @0 H" T* c6 [  Q( f* O4 ~   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
" C2 I& d8 }! W! q   set [trade-record-one-len] of self length [trade-record-one] of self
6 g! W; f/ I# Q% q6 r# `$ S   set trade-record-current( list (timer) (random money-upper-limit))
) j( f& r! H7 ?3 A; f
2 ^" L9 s" N5 n! z/ @" Y问题的提示如下:
( U+ C' I0 q% n1 e$ Z# r+ h
' Y0 ~; {/ g$ berror while turtle 50 running OF in procedure DO-BUSINESS) O/ Q8 ]4 }8 z9 v; _( u
  called by procedure GO
5 ]1 r8 \& q! X8 P1 K  c6 SOF expected input to be a turtle agentset or turtle but got NOBODY instead.
6 G* p- V) t" F2 {) A7 R+ T$ }. _
(halted running of go)
8 a% W; P: K# T3 E) m8 y1 M! |8 h
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~~
. o: h7 l. @* I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
& g+ B- s) v* f" i( oglobals[
1 p8 J( o4 D' c1 cxmax
+ l* |9 L  M4 v+ ?/ Nymax
. y% E( f4 }4 L; y6 Fglobal-reputation-list) p- T; ~3 k0 W- C3 u
* S% ^  v" o, P; A& ]
;;
每一个turtle的全局声誉都存在此LIST
0 N! g+ F5 h( g+ q. Fcredibility-list
$ |5 ~& A! j/ N5 J. t$ r: u;;
每一个turtle的评价可信度8 Q1 c( M* `$ k2 }3 C
honest-service
( X& F( X% Z/ J) m* I0 h& Q7 o  lunhonest-service
% n) F! `0 z; W# Hoscillation/ h9 Y. t, @; L! Y  @1 \; Q
rand-dynamic6 Y" d1 G% B* q5 ^  @
]4 Y# L' B9 [. Z! D8 t3 n( p) H4 L

6 G: d! H; J1 r( fturtles-own[
% t& X3 X+ W6 {  Strade-record-all4 R; C! I: c6 X* s  k& k! g  h
;;a list of lists,
trade-record-one组成
9 h; U" K5 k  |$ n+ E% gtrade-record-one
4 r. ^" W9 w: H4 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$ t; ?: m8 Q! R, L& I
1 l) u) {, X0 c! G# C" h
;;[
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]]0 u, B- m5 c6 x1 Z( ~- _0 k7 E" Z- O
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]
. I* `( E, o7 j& qcredibility-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list8 @# l' `+ R* _4 c
neighbor-total
) [4 |2 D) }8 U- L;;
记录该turtle的邻居节点的数目! R2 E  m& Q/ q) f5 N$ \
trade-time
, H8 m( A; f/ F+ B& t; T/ V, u+ L;;
当前发生交易的turtle的交易时间3 ~9 n) ~% m0 C/ n+ O" i8 s
appraise-give1 }4 l6 [5 n8 M1 `- ?
;;
当前发生交易时给出的评价! W8 Q# _( x6 l$ g
appraise-receive% ]7 `* K- ]5 I7 A1 z  C; y# T
;;
当前发生交易时收到的评价
' T6 ?& q- m; C' f; m/ c) y2 gappraise-time
" [8 ^7 C& Q8 P" E;;
当前发生交易时的评价时间# M- J9 E* v3 C6 Z" U" R
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( v* [/ ~# i5 [2 {2 {
trade-times-total: ?  b8 a( A. Y; h" E2 r. A* u
;;
与当前turtle的交易总次数! T, K& Q+ t! X
trade-money-total7 O0 Y, V* l( Q6 w( k1 @$ V+ e1 [
;;
与当前turtle的交易总金额
; ~, a0 |8 G! t, T- blocal-reputation
/ r  W, j8 R, }$ z6 p' o& W: kglobal-reputation( M, ?2 E& U4 {" f
credibility
& T& e, F7 G6 _4 W8 v: D( p;;
评价可信度,每次交易后都需要更新
+ I6 I6 k+ ]4 [( B) Zcredibility-all
" \7 V1 v' w5 J( e" |6 H$ O0 ^% _;;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/ W# R# z" S* h. a. X# F
1 b4 c  H5 V0 l( c# b8 ]( l8 B
;;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
  P. i/ Y/ e' A! W2 S6 Wcredibility-one
7 i$ ]7 l: L6 L5 n+ v7 S% G;;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
2 k, t4 T5 `5 b+ c( ?- v7 rglobal-proportion4 n0 ?, a/ y' H4 M* I
customer
4 `& S! X" }7 Qcustomer-no& B* w! e- p0 ?0 R0 p4 y6 K
trust-ok
5 j/ w( }/ |! A; u7 Q1 G8 ptrade-record-one-len;;trade-record-one的长度8 e% l/ b$ @" Z6 A* J( V; F; c4 ~( q
]
. g$ R2 f: z/ K+ h6 J% i8 u( d( Z$ D8 p+ Z2 n
;;setup procedure- v+ K- {1 V' U2 O

# l% Q" m( T: [3 fto setup
, S. Y3 K# I) ~: H' x2 i6 ^0 Y) j: w: c" r2 ^1 d, r  x9 W
ca

; g$ T) x! M' k/ u: i
) x6 X) L# e. @initialize-settings
% G6 \) h7 W. Z. z2 y8 |( I

# r* c* F2 U2 ecrt people [setup-turtles]
9 E# d$ M+ Y5 t0 I  m: i
+ E+ _& K6 E) l9 Y3 \" e
reset-timer
! l4 D7 W7 M4 P. u/ i

7 r# ~0 F* e+ [0 `( N8 spoll-class

0 O7 {3 Y  T+ m3 [, a1 Y) }. F/ O8 p1 u) I3 s$ B# o1 S
setup-plots

7 h3 }; Y4 |/ j1 N1 S/ H, g6 V2 D! @1 H+ a; O: L, |1 w
do-plots
8 d& c4 m: P; I+ P+ `. q" s
end
* L7 n. J1 D- a4 L
/ N" K: l, t6 Z" u: j; yto initialize-settings3 P3 {- T, x# x* N
+ l1 c5 ^$ o- x( M
set global-reputation-list []
9 Z3 f) b# j6 |3 N, Y9 B; s* q
, X) D# v! O6 V) R0 `! ~
set credibility-list n-values people [0.5]
7 R0 M9 h" B. c
1 J4 t: g* O( N4 s* i; X& }
set honest-service 0

) Q& m  b6 G& J' `9 d, s& C' V3 M8 u3 B  P
set unhonest-service 0

7 K% K! e- c6 V3 O5 p5 V6 u9 w/ N9 X7 E" ]2 z
set oscillation 0

+ P& i0 h% [# g" [1 V( ^
4 u, G6 L; g. Yset rand-dynamic 0
% p4 a9 I7 b( z( n& l4 K% C$ v) p
end
- t3 t3 H) d2 b% n+ c
9 p3 H/ ?% n" vto setup-turtles * j  B& J8 {. r. Q7 \+ u5 L0 D
set shape "person"" n1 e0 b$ ~+ l* i/ [
setxy random-xcor random-ycor3 z6 }  H  P/ l2 X6 r: \3 w" g" {, M; t
set trade-record-one []
- p& Q1 m5 z9 H/ L9 j0 p! ~; F

) p% J3 G' u; b7 Sset trade-record-all n-values people [(list (? + 1) 0 0)] / h2 H: Y2 @9 y
3 K/ ?' K- R: A9 q
set trade-record-current []# x: T- G4 t$ E1 H7 y9 _& R5 e
set credibility-receive []
; ?6 V6 a# ^+ W4 C" Pset local-reputation 0.52 b# {, [% F. A" s+ j4 o# u: g
set neighbor-total 0
$ e. D! e- u9 j- |% w! kset trade-times-total 08 S1 W3 x6 D9 n4 ]6 @
set trade-money-total 0  [. M( |; \8 H
set customer nobody
4 @) P: Z! v( k- \set credibility-all n-values people [creat-credibility]8 ]) Q- h3 w( E  ~
set credibility n-values people [-1]
3 T! H3 T6 S- k3 s8 _- W2 c5 Rget-color% f1 n% M6 @* a5 J' U, D
. ?0 `: D5 c' |3 `# ?; h
end
  d, W% v7 o+ d& z! ]1 l6 i8 d. ^3 x5 y9 O! r0 d# H
to-report creat-credibility
- B% Q' K% s- k3 Dreport n-values people [0.5]
! B; e+ v, ~0 d, p1 S. Gend% I5 ?1 }) D0 A1 N9 [5 r5 H
1 ?% [2 W  c  [, N
to setup-plots
, f$ K1 X; b2 Z+ S, H; Y4 r& e" u3 d  j
set xmax 30

. l/ }8 d4 }  l5 @
9 N8 P( h3 A) y# B- J1 zset ymax 1.0

0 U. v$ a) }  E/ e1 e2 h' Q6 }2 y& a) S* D9 r, q3 @) l
clear-all-plots
0 ~. V4 v  k" Z: v) c3 m: J1 s. ?& X
1 P( r# C5 t! y) \, j" Z9 Z% u
setup-plot1
+ _) z+ x5 r# e" {  m, ?2 [5 p

5 |9 t/ v+ n$ \7 a$ l* |" @setup-plot2
$ @! f7 t9 D' A+ [  J$ p- U
6 d; ?& B# [% R6 G! a! i7 |0 d
setup-plot3

3 o  B8 U5 T& Uend
  X0 u. G/ j# a6 e+ I" r. i% ?, r/ ^6 q, {& U$ l
;;run time procedures
( t+ z  R- K5 q# C) m2 z
% x; s* o: }4 {# x' bto go
9 @( Q2 I9 s; N  Z2 e7 [# l* j- `8 c2 w
ask turtles [do-business]

) l3 B% t: C5 @! U' H" t- j4 I& xend
; C: J3 n( l# f: l$ Q+ B( O* u) z+ e  ?
to do-business
6 p% W2 r2 L) T9 r+ c0 l3 z

3 x; n: Z) G" G' q
# F: v4 t6 g4 z* Nrt random 360

9 x+ [) i* k1 d7 I5 @6 U) c3 ]! i) m+ V+ m& w5 y8 V6 B
fd 1

# P0 |) N" E" _
! ]0 U9 c' H2 O/ t7 Uifelse(other turtles-here != nobody)[
, h4 Z# w7 _. _/ S' v$ o5 [
% k9 l  v" x  }$ c9 N' ~* b
set customer one-of other turtles-here

+ x9 _0 m. `7 g8 k6 }
, m! O% A+ k& V# _;; set [customer] of customer myself
. @3 D0 {( L% J. @" B& \1 n6 M! c
3 N4 ~& J( h/ M0 \
set [trade-record-one] of self item (([who] of customer) - 1)5 i* X6 o0 A& W2 [6 B. E3 t; L
[trade-record-all]of self# R- B! v1 C0 |% Y' J2 w1 p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

3 j$ ~# m$ p* p* y- o- q& P$ Y7 X+ Z( G9 L4 A* I
set [trade-record-one] of customer item (([who] of self) - 1)
& T( S5 H4 }6 M; |[trade-record-all]of customer
' Y) `3 F- n, D9 S

$ ]6 e# w7 [. c: g0 Uset [trade-record-one-len] of self length [trade-record-one] of self
& K9 _7 }" @3 v) i- M# W
$ t. o1 a' ~4 Q8 U$ F
set trade-record-current( list (timer) (random money-upper-limit))
% U" r) h4 R0 r; v3 r. r. K8 @: j
2 e$ T- g. N) g( o; }% A) w& t
ask self [do-trust]* N# Y/ S1 g2 Y# V6 q8 J( [
;;
先求ij的信任度
3 x/ _2 O6 t" ^1 ^) l6 P" W0 r7 W1 ?
if ([trust-ok] of self)& L: x0 s  Q0 x( s
;;
根据ij的信任度来决定是否与j进行交易[  O2 n. Y% k& y: z
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself& V$ w& W* Z& ], ^
' ]% J8 M- K; u; _$ X$ W
[
2 ]- _1 a/ p, e, R
2 }4 S# f4 B, G" j8 q2 R, O7 g& P
do-trade

0 \2 {) h# P/ ^2 n8 I8 F6 x5 g! f8 L- Y+ m2 r! S$ @. G+ A
update-credibility-ijl

; b$ X0 |. a1 ?  L% N: [' [& m# K: ]$ o0 {9 m9 p
update-credibility-list4 F% h6 X  c9 {% G

8 F, i/ A/ V0 m/ }# e% |6 |9 l$ @: p" l* w9 k
update-global-reputation-list

  a# j* x5 o" {) o9 M; C; n
3 O$ v: O8 ]$ Ppoll-class

6 i% s& J7 E5 y/ W
/ N0 x4 X/ Y) X8 s% T0 x$ f6 w1 Dget-color

6 R$ \4 C( i4 A. A  \4 d$ I7 n0 q4 O. R1 J
]]
, U/ T$ a7 P4 A+ B% ~$ ]- e% C& y4 ~
;;
如果所得的信任度满足条件,则进行交易8 w4 w! b/ R* V6 G3 @
& ]3 Z6 r( Z4 c: l+ z1 O
[
6 e+ d8 U: v, i1 i$ Y" V. {
! A6 k9 `: k) y
rt random 360

4 H$ D4 |7 G0 Z. g4 E/ N; x$ T
2 |# l% P4 L, }! S( m- _) |fd 1
% t- c7 f9 o" C5 |; E( N

$ A: w' x, t! B' W" n; Z" [$ ]7 Y! P]
1 B( [5 g, b" z4 C8 w, ]
' p8 ?! l2 t) j3 H/ C' y
end
& ~' \3 h  p1 r, z: ^; }1 ]6 i; C) `
% R- l2 n3 w5 ]  [( T3 ?) R# A- S
to do-trust
8 {8 f/ a. ?! T2 |8 s9 |* @& _( xset trust-ok False
; N% P* Q8 w5 V) ~6 E3 O; k1 z/ G2 T
9 r; a. q) ~$ `% A
let max-trade-times 0- ~" I( A7 u: u7 F
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# V  Y( |0 X0 @& q: r/ ]0 X) t
let max-trade-money 0
0 P8 s; l8 X- V: K& @/ Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ B5 y/ N. E# z5 H# ]9 \& K1 ]
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
; y8 U, w: s0 P% I& i4 \0 h4 l4 l6 w/ R/ }! }# O8 S. f

, P$ H3 l6 p4 x& y- ?; T  Dget-global-proportion* }6 s& e) I7 U& {
let trust-value) k; `) h6 b5 }9 `2 j2 `) T5 ~2 K
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)
) {( f, E) F, a# H( r
if(trust-value > trade-trust-value)4 }" z) j! @6 k4 B# A! G4 P1 S6 X  N& o! p
[set trust-ok true]* t: d/ M/ O" E& y5 c0 [
end; S$ M3 r  P$ R) [

  C0 N: Y; ^, N+ V( [3 \* f7 Ato get-global-proportion
. N3 n) c6 G' H6 t1 G$ A' Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( O* ?  W1 m* ]. S& ~6 p2 x- t5 n
[set global-proportion 0]9 J2 Z8 V0 e0 `# E* r
[let i 0
4 [7 H2 {+ [" T8 a5 p  plet sum-money 0' E- s9 v7 [3 \% _( ^
while[ i < people]# H2 P* I9 \6 k1 j4 ^: G9 t9 K
[8 R- r8 P+ D1 L& @/ Z
if( length (item i+ O% P% Q4 Y+ o, u& z
[trade-record-all] of customer) > 3 )

7 u9 }' t1 W/ S' n  Y. r[% P" q9 {0 m9 P5 t/ i* @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 z; U) y; y. w8 k]
7 O. T# |' B; n  `" C. Z4 }]0 a/ c3 V( L( t! N; U: H# w5 S
let j 0$ u8 g5 |7 D( h/ }7 W
let note 0
. O! g# l6 N2 w4 [  Awhile[ j < people]  S: z: _# r  Z/ O8 E, L
[9 V+ I" K* ^. d% Q9 o- E  X/ Q1 z
if( length (item i$ g0 x) z! D0 {9 W) ^
[trade-record-all] of customer) > 3 )
  S( _# X& R- p3 P; A0 q, ~& L
[1 e/ i/ S( z. V8 F0 V) \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! f5 ?' B  `; I+ r2 O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 x) {2 P' o( O+ B8 N" v[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 V  L/ D' c, H% W" P
]( ?* Z( z* J, E# l6 o
]0 p7 I( F3 o8 J8 C5 h' L
set global-proportion note, R6 N% {5 a; b6 K2 c
]
7 L) [. O, t5 F) ]" }+ [7 mend
+ N: |* c' f/ N0 m3 B, R: X3 \5 e( q0 y
to do-trade
* s/ g4 g4 l6 H# q: I;;
这个过程实际上是给双方作出评价的过程( ^$ S: y* X# C8 g
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价+ i2 `* |& r( O
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价2 z/ y, r" }; o/ L' A% M2 ]
set trade-record-current lput(timer) trade-record-current
1 H1 q3 ]" g: ^;;
评价时间5 e) a2 I: p  W' `1 x+ a
ask myself [
) o7 @3 U: `3 l. {update-local-reputation( @8 o  ?4 `# n8 i& G
set trade-record-current lput([local-reputation] of myself) trade-record-current  O: \6 |- |* p8 B( _, ?* b
]! K& w/ D( q' Z: o0 W
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 K: ~$ w! c+ o1 u9 U$ }: Z1 q9 j;;
将此次交易的记录加入到trade-record-one& X( b1 n" M, E% I3 n7 r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; r1 B) Q8 X& I  N) O! ulet note (item 2 trade-record-current )4 c/ }9 ~5 p) `3 k6 D
set trade-record-current/ G8 |, Z" C& z
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 W% T9 k9 o. b, ~. y8 J: c
set trade-record-current
4 V6 V  O2 |) m4 \+ ^(replace-item 3 trade-record-current note)
" w( h) \4 q  u( @& X/ T+ @3 h) i# x7 o4 f# B/ v7 J- Q, @; d

& j4 n9 c. j8 K$ e; fask customer [- c! Q$ ~( ~) H3 s, E1 s1 e
update-local-reputation6 ?, @9 G$ {! \
set trade-record-current
  y* a  [; K; @$ C1 F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

/ ]- [. b# q- P, ^1 L9 d0 `+ d* K, }]
2 j4 X: q8 A1 O. H( d8 {+ i
9 T4 W1 L) H8 [+ ]; u3 y- b( F. y
1 r0 W8 M: U! E, z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- V0 l5 ]  ]# B7 r& ^. Q

! ^1 `& ^2 r' n& [' ?5 A9 uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 P. J6 Z+ g. }4 D, A/ C
;;
将此次交易的记录加入到customertrade-record-all
4 {2 G( `% U" T6 v  J! {( `end, T  m9 w5 [; ~( U

' s$ p5 |* g1 \) v! l5 {, qto update-local-reputation) V/ [* s( U9 O
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 T6 F/ n: ~7 h+ |' v- L3 M& U( l2 F5 M# K1 [+ A% S. D: a+ d
- m7 R$ B2 ~! R9 e8 G5 v
;;if [trade-record-one-len] of myself > 3

* F( S$ a$ j! L; e5 V+ Q# b2 p1 pupdate-neighbor-total6 G5 g6 q6 r2 A0 v' |
;;
更新邻居节点的数目,在此进行4 W  P0 `2 f* g
let i 33 h  W, F+ L  \! F' p8 c
let sum-time 0
; r! C6 E. E( wwhile[i < [trade-record-one-len] of myself]% O" P# E9 x& Z: g* ~8 h
[0 ^# f( ?0 B" e, i. d) t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# M5 h. W4 y9 ~) R8 ^
set i& h$ |  u5 C- r6 A6 b0 ~' r# E
( i + 1)

" I8 Y4 z# ^+ f5 D- I0 Z1 K]3 ~3 V6 M' b& i; y: ?0 m
let j 3
* X  ^% \) }7 Z5 g/ blet sum-money 0; H9 C. J5 c  u6 j
while[j < [trade-record-one-len] of myself]- m2 M+ _4 s/ Q" e! B9 |. N5 m* I
[! a6 L( O* c, j$ P+ u7 \
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); u& F$ V4 \& G+ T2 C
set j
; e9 R* T! T5 n( j + 1)
4 |3 B* o: u+ I+ h4 a
]
" \- e# N, n9 P" B+ Alet k 3% T. Z- ^2 D. u" c
let power 07 w: a4 B) o+ m0 y
let local 06 l" j" e( Y' N: K5 O/ @" Z2 A
while [k <[trade-record-one-len] of myself]3 Q! X! D1 n7 m
[' I5 F9 F9 [0 t/ g
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) 7 k8 @1 C; @; D- w
set k (k + 1)
- O' ?+ t3 L, ]: Q/ |% R3 }+ S9 b]
% s( W7 A  E! gset [local-reputation] of myself (local)
8 V5 v4 \" p( x* o3 Tend
5 p% {8 D2 r. ^0 @9 }+ p9 o. P" z2 U: ^- {9 ^: Q4 r  ]+ ~3 k
to update-neighbor-total
- a7 p0 O. O! l! h+ Y1 L
* u1 l; c( y) }, m3 w. iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; i9 N- ]) e4 y9 J+ I$ c4 [. z8 O4 W' @; \

$ _5 i0 N( K5 f! Z8 l; a  ]) `! Wend  k8 a0 [0 P5 {% l
. [+ [2 d8 l: l- j* A! F- K
to update-credibility-ijl # r2 k. C2 M% |6 r9 J

1 o! S7 O. E4 T; K: d% [, a4 Q;;
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。
' Z' a/ x$ D4 {( L0 ~- c6 R" elet l 02 K1 a- E* C1 W0 C. w
while[ l < people ]+ r1 j7 W- ^) F
;;
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
: L9 T6 h3 c4 l[
+ m9 F. ~; T2 ^5 t; Q  S. h$ tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 i4 n* s# A$ N, P4 A: y) Bif (trade-record-one-j-l-len > 3)
! F7 g' f7 n7 Q$ I6 h( r[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
) T4 ?/ G# I  l2 |let i 34 t; D4 d. [# v# b9 {" t* x* L
let sum-time 0; w) D4 P5 X: v
while[i < trade-record-one-len]% Z' d! K. y. p& I: [: e1 p
[
8 B. g$ ~/ S6 e& ~3 V( F8 z3 B4 jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( ?# {$ w1 V8 V( A. V  f
set i
7 P* r* I" j0 t4 \! i( i + 1)

( B+ Y6 w: i3 I7 I$ v0 f/ Q8 j6 {, b  L]
3 ?; g# _8 j( l1 Y2 x  Alet credibility-i-j-l 0- W" I  a" R6 z: _$ d$ W
;;i
评价(jjl的评价)- t) `$ n% H0 \- U+ ]
let j 3
  P) y8 b9 S) zlet k 4
2 C- B- ~6 ~# Y: nwhile[j < trade-record-one-len]8 M  z$ d! s& d
[
& N/ j3 D% L" o8 L3 f0 Pwhile [((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0 g) W+ G0 \3 v, z4 w$ A
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)% x0 s3 L! G; R  x6 v
set j
5 I& n7 E+ y- Y+ e) x( j + 1)
2 q# o% F  l9 O  D6 @' c
]
4 y' e, l$ j% b/ L- D2 Bset [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 ))
1 r2 X0 p9 X& R' g8 n  \) P
. H4 ^+ j5 k; K' B+ ~% d4 ~& R9 ^

$ D3 n; ~' b0 ~+ N; N; zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 q" B9 @- R) x# j! h$ {
;;
及时更新il的评价质量的评价; u- J9 f* c+ d3 z7 z5 k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! j: r/ }- K! X$ t$ W/ u3 s: J
set l (l + 1)
% n- @. b1 d0 h+ f4 q; t" z9 D: h]* T+ o$ z/ Y6 `* N; W  L
end( J) ?3 t) P, r5 G4 J

+ w" `9 u0 u, l5 Rto update-credibility-list1 S( [' E/ [. }+ Y9 m
let i 0
: Q+ M0 H9 l% m" V+ u* S0 \while[i < people]1 |; k6 |( s' Y
[
% i" I) Y& r5 Rlet j 03 S0 a2 q* w. D1 H& B
let note 02 ^! H( l4 V' U' R' [- R$ h/ z
let k 07 X+ _  l7 ]( D' w& E8 f. }! O6 e
;;
计作出过评价的邻居节点的数目$ n7 w9 z# r1 S; ?% D
while[j < people]
" U; x0 K  \$ ][
7 [. n, T+ A/ zif (item j( [credibility] of turtle (i + 1)) != -1)! N( R. a. g0 j& s
;;
判断是否给本turtle的评价质量做出过评价的节点
7 j! ~: \0 E3 p[set note (note + item j ([credibility]of turtle (i + 1)))  P3 b9 ]/ P) Q; _- E
;;*(exp (-(people - 2)))/(people - 2))]

0 F/ p( S6 f4 T& K: z! {, ?set k (k + 1)- _7 q5 i/ c/ k# M
]1 ]; W1 T; v* n
set j (j + 1)
0 u" P+ q+ O- t3 []* c  Z( ]( X/ S: v; N
set note (note *(exp (- (1 / k)))/ k)
- F$ k9 B  o" r3 ]4 Bset credibility-list (replace-item i credibility-list note)
  Z% A. G' m7 ]5 l0 @set i (i + 1)
5 x! ?7 l' Z: H  u7 z5 g]7 K3 x7 P7 r5 A) [
end
. a5 O% ]8 h, q: p' q, a4 K, p9 Y' J4 H+ T# x- J0 m
to update-global-reputation-list
- K  I' f4 ~2 L' ^9 c2 slet j 0  R4 H: w8 u. T. A
while[j < people]8 y* a) Y) C, M0 w. Z
[+ H1 p5 L3 P6 O  E( Q, z
let new 0
  m9 l" {" r8 L4 R& I;;
暂存新的一个全局声誉1 B" S* u. }) B- O7 s+ Q: z
let i 0+ O; A0 H1 B; A- x/ k/ D" i
let sum-money 05 G  d9 P0 p5 L/ ^5 G
let credibility-money 0+ E! |, v# Z3 u7 \/ [4 t
while [i < people]* \) g+ J& d+ b  y1 g9 C
[
; k# R; p/ P& Wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) m; z% n; S4 r: z) A, aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ O5 _% h! F' c' h- F6 }set i (i + 1)
/ _9 S' M3 [% Q]
+ a$ X+ @, e% i  mlet k 08 I( G" V/ g# f& z) O0 g
let new1 03 m  v& g# Y$ c# a7 x
while [k < people]
) Q& E+ l2 u9 R4 W+ u3 t# O[
1 a8 D( |; [; h$ }* v- D* eset 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)
. B0 p1 u2 p5 ?* D9 |' Yset k (k + 1)
4 T: K0 n" j+ Q]
# O& }& ?+ N$ R' G3 Y$ q  [$ Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, l! J* |, k4 k! Mset global-reputation-list (replace-item j global-reputation-list new)  d/ k+ W# q2 S( R0 _% Q- w' u8 A
set j (j + 1)( |" U! v8 _3 ~( ]. Q* k# K
]- a9 d; H& d2 E0 g  j5 `
end
. A' F6 O( A# G- e0 Z/ z" ~# ?' D3 K, ^3 S3 P

1 w0 @. I$ {% J5 J* c6 |; p! x
% [* q5 C- f  t6 R' a8 Xto get-color
/ e! f4 i) |' A
7 V. E/ J6 H2 Cset color blue

: h. r9 O) ]# o+ }( \1 r3 Yend. V" `* \" h' o+ ]
+ v. E# y1 N' z! Q
to poll-class" g" }- f( b; E) q6 g
end/ f+ q; H) w2 m2 n  j" `; d

! R% n% k0 I: _2 a& W, L) Pto setup-plot18 g5 G. U6 H. X# m
& {3 N2 f3 N7 i( ?" D6 }
set-current-plot "Trends-of-Local-reputation"
% P) e$ a: v* a: y: k
: x" `: m; h/ X' ^* F/ Y- C
set-plot-x-range 0 xmax
- w9 }9 S1 d9 e* ^0 K

; n5 N; C7 x+ H& d( Eset-plot-y-range 0.0 ymax

* Q  M1 P- q. b. d- fend1 d* ?7 r0 x2 s5 Z/ `
* J$ j7 p' Q, F  ~% C
to setup-plot2
# t* b3 K  A- y. W4 W) U, k5 k- O) E, n4 W
set-current-plot "Trends-of-global-reputation"

7 F" S; o# A( ?- |9 H2 d( d! @
: S" S$ b/ ^) bset-plot-x-range 0 xmax
  \  ~  r5 L* q8 Z8 R

! t" H  n$ Y. H1 `( R1 xset-plot-y-range 0.0 ymax
: ]& d1 O6 f, b- M
end
- J5 g; X4 N0 Z. x2 X8 ~( d0 r& K; }
to setup-plot3
, Z2 v. H! ^0 i/ ^
1 I& K2 l2 N$ r2 T: D6 e: p9 J5 f4 T3 Uset-current-plot "Trends-of-credibility"
: u5 K! o7 H/ B7 E! L( L
1 |3 N( Y5 l3 O
set-plot-x-range 0 xmax

  Z5 N% V4 @( m6 ^  E7 v! @" `8 g5 ^) P( b! ~# ^% p8 [; y# b# E; P
set-plot-y-range 0.0 ymax

# n( G$ A3 C+ p( q& pend, P, a( M0 w# `  w7 s/ Z
: l& d7 \2 H5 |( x& i
to do-plots
4 j5 k7 ^/ [! Y/ o1 V0 Tset-current-plot "Trends-of-Local-reputation"
: H0 \3 _; L8 H7 c+ y+ `4 fset-current-plot-pen "Honest service"/ i) u, }# @" g# B/ l2 s
end
' [% T0 [  ^! `. ^: n7 n% N5 O0 ~8 ?$ o! Y8 D! H1 z3 @& K7 ?! f0 p
[ 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.6 X# l2 S7 r% M- A9 o% l

, w' h  }, X5 I7 E& c# n# a; v8 }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, 2026-3-1 16:46 , Processed in 0.021348 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