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: 12553|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:
* [0 W3 i6 m  U  t, z( G& C' ato do-business
- Y/ E- j0 j! O4 J( y5 }. M# U rt random 360
7 g; R( y7 l; @# P4 J; T$ a fd 1* X& `( I5 z3 B6 U' }" A
ifelse(other turtles-here != nobody)[! Z' Y2 F9 }3 @6 z! P& s
   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.
8 f- _+ p! w  D4 u: W( b   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
; j3 x) }* ~2 j" _+ }4 G   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer% ]' C& {3 E( P( G3 O0 B
   set [trade-record-one-len] of self length [trade-record-one] of self
# C0 R! u2 d7 P( Y8 U2 d   set trade-record-current( list (timer) (random money-upper-limit))
( W" Q) v. ?; n* w* Y1 ^# u
7 {1 T' x6 [- D2 K  \3 i0 Q问题的提示如下:
) j8 V/ B& k9 [' `! W0 m5 O- c, Q. d7 H
error while turtle 50 running OF in procedure DO-BUSINESS
3 D& u  w. ~4 A8 `/ f4 y: F* G  called by procedure GO
6 E- Z, D3 b. }5 c. L; aOF expected input to be a turtle agentset or turtle but got NOBODY instead.5 a8 I; D5 A! i6 j& L2 u
(halted running of go)
2 h" ^- s$ b0 L+ r9 N7 Z6 h
5 g4 f, f- |2 }! |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~~; ], a9 `; O# b  e. {3 Y
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
$ N3 Y8 ?# J. v4 ?1 O% d  lglobals[
3 z) e5 R: l% k' y+ v* Qxmax
' @1 s5 |; s, S5 H& h1 e* K$ V- Bymax+ o+ J7 g, \0 u& @( p% T
global-reputation-list
! b7 n# u: c1 A$ L4 z& |+ [0 f4 m$ B+ Z$ k& {' `9 P
;;
每一个turtle的全局声誉都存在此LIST
6 |4 a5 F# K+ T8 x6 gcredibility-list$ H/ Q# {% E( \1 Z
;;
每一个turtle的评价可信度' [8 p) x8 ^: P( U& z6 n, s* v
honest-service: M; {  l; a( Y1 h
unhonest-service+ p. X- n5 g0 G2 L$ v
oscillation
9 h; n- V( K; N7 F% ]% a, c; Xrand-dynamic5 N" b2 \+ x  P# b9 z5 y
]
( `5 I7 Y/ a+ T/ U
6 s" i% |2 u$ ^. }5 `/ U% Mturtles-own[3 x1 _9 r% d( O: O0 K; u
trade-record-all6 n. D; l0 ]4 f6 T0 W! C
;;a list of lists,
trade-record-one组成
. F! \/ m: y- W6 R/ i) mtrade-record-one- d$ ]+ a% H1 I# Z/ O
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
/ @8 M* H7 r+ {
% C# l1 z, _& K3 {7 W8 i- c; q' p;;[
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]]* g) E3 f$ F9 {- j9 _3 {6 N
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]
& E: K6 [* ^. @6 y$ Dcredibility-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
& M8 b- c3 d# Cneighbor-total
2 t( N3 z/ x4 i1 ~# X- c;;
记录该turtle的邻居节点的数目  W5 r1 ]5 V+ A* C! {
trade-time
' W5 e1 r0 G+ T1 z;;
当前发生交易的turtle的交易时间2 O0 `" I7 \7 Q
appraise-give4 }/ c; U. Z- N! l$ B
;;
当前发生交易时给出的评价
. A& D! U5 H0 @$ gappraise-receive, t* U& N% ^) f. {+ ]7 `& m1 \" m
;;
当前发生交易时收到的评价5 G) d) R7 ~$ b9 r! e8 [' _$ I
appraise-time
  i8 f3 B5 g8 E# |+ r;;
当前发生交易时的评价时间
2 W# p% Y$ |, ^$ Olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉' m" I+ {/ M/ R) B7 H: \
trade-times-total% Z0 `8 a* y" e& C" ?, l7 W
;;
与当前turtle的交易总次数: L2 @8 \3 U0 T
trade-money-total
, R( J# a: P" g;;
与当前turtle的交易总金额
/ C6 h7 k! D. o) _  R" y! D4 `: h) G* alocal-reputation# n6 {+ Z! T" P. a- n9 J
global-reputation3 L( s3 ?  s# A3 i6 F7 X, }
credibility
0 A6 S% ]$ E/ G6 M% p;;
评价可信度,每次交易后都需要更新# K0 p: C! E" n+ ^2 B, b
credibility-all
/ U  S7 n- X: I5 U8 q4 g;;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/ T0 F% J3 l8 ?8 t$ G; S- d( v

& [2 s# `7 W4 O+ ]0 j# @9 V# L! Z8 \;;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* n2 Q: E  ]7 |) C" z6 [
credibility-one
; s/ n7 F% n, F( @- q" |+ w;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people; X. i6 X  ^2 U* Z' K& z
global-proportion
4 g! l2 E2 ?/ B0 I, P9 x) ccustomer
- t! ~) u* [  x! q8 U8 {, q7 M$ Vcustomer-no
) g6 ^% M" v# v4 dtrust-ok
% E0 x; k% t8 ?& [2 s6 B# Y* T0 `trade-record-one-len;;trade-record-one的长度( H0 p# p4 t9 ?8 T2 S3 B
]
$ A; h: V& t; S/ [+ g' w' o) p. F% `( L' d
;;setup procedure
2 X! [9 |* W" y* t
; F0 \) \. G+ R3 c( L  K7 |to setup5 `% p) \5 p( l7 H1 l9 a

2 l( |: U% S. v! u" G  d0 Yca
; M7 v, t5 {( A- s" A+ }1 l5 n" {7 b

* T6 z% W' m0 y# Xinitialize-settings
* Z& _) y! I+ ~# g  b+ d/ R* y

# R  h* @) N# G7 T8 L6 o; ^crt people [setup-turtles]
/ v2 z  J! g& I; l/ g

2 G% i8 m& G, |( t6 n' \reset-timer

0 W3 i/ B; i& u9 |! O; \" \6 G9 I4 Z. H4 w; G0 G; y9 L
poll-class
, s8 l8 [; I7 ~8 d' ^" @

( E5 J2 ~' n4 x; {0 w. O! qsetup-plots
8 _2 x& _0 G" J9 B, k$ B
1 ~4 c. t& m1 l, c' Z- `5 o
do-plots

5 l* o5 C+ v- H; n; W7 y% lend
9 S) a: }  w9 I+ t) R5 _  v" S* W, K: y: N9 P& x$ X
to initialize-settings  r( ?$ T2 t8 z* P
" V  ~$ y2 ^: k
set global-reputation-list []

( ^& N' ]+ M/ `1 H8 u
/ k; p( N- i" ~' Oset credibility-list n-values people [0.5]

* G! f9 ]' E. L$ t
5 Y/ @) S% V4 h6 |0 Aset honest-service 0

' h6 Y: I) N! A, B2 K" k3 x0 A; x7 }& C* E. \7 [: Q
set unhonest-service 0

" `( n, I) a& H+ K. u& q  O, A
4 a3 B2 D2 e7 A, E, a2 g+ F& cset oscillation 0

4 s) Q5 I" f  ]- O/ c( Z0 F5 p8 M
set rand-dynamic 0
5 m1 e, |7 ]2 [# r0 \1 P* j
end
# V  u, q) N5 p8 M. T; D9 H
1 q$ \8 d: N) i/ H( Tto setup-turtles . r2 ^; N% m4 F9 L8 Y4 m1 x( Z7 t
set shape "person"! i& }6 U0 p2 e+ H, I# X
setxy random-xcor random-ycor( a0 \- i. f1 j. I, R1 \
set trade-record-one []
: ]( y( w1 K/ K# {+ r+ V7 j; b+ G
5 `$ A4 T$ F# }; B
set trade-record-all n-values people [(list (? + 1) 0 0)] ) z. Q% s8 Q& _+ W& ]$ @3 q) v

2 M: R- U+ W8 e' ]/ h) c4 o+ F4 xset trade-record-current []# h6 ^. y* P7 \* B) g
set credibility-receive []+ ]% H- q' w. {" h3 {8 x
set local-reputation 0.5
- H- N; z0 b: u) tset neighbor-total 0
) [2 G3 z) v4 j8 `" Sset trade-times-total 0
9 K4 o& y/ v  u' I0 ~3 L, Gset trade-money-total 0" P, z+ q* X. c; ]
set customer nobody* P" x- H9 M( w" F, U1 r; r; x
set credibility-all n-values people [creat-credibility]
2 T/ p' M1 r* Eset credibility n-values people [-1]
+ x" o* a9 U: Z2 l2 Nget-color0 [! x* f- R. S. W4 x4 y, @
' G8 x+ V6 |  ~; l% i
end
9 ]( D) C& y# U$ ?
) W' }, m/ f' ~7 a; ?) o! T9 _# ~  Mto-report creat-credibility
& ]' T" w! m9 d* P, Wreport n-values people [0.5]
6 A$ m7 S& d  y1 e7 v' T: uend
+ z" `% l9 Y4 J0 H+ r
" \; t5 V. c- r6 b! @to setup-plots
/ O  X& w3 |) P1 ~- A; l* T0 C6 n
7 Z0 Y# k; L. }6 C1 _1 u" Wset xmax 30
% d# y' G$ e: P6 E( k
, H! i) G* |' ^; q7 ~
set ymax 1.0

) B# x  y6 H6 j5 E  B9 b: Q: W1 R( ~1 f
clear-all-plots
& J% h1 v, v/ `( V3 T% E% a
) n9 I6 T; ?4 }# G2 A; F  G& f
setup-plot1
1 Z) O! f( i3 k2 e' t3 ^

2 {# {2 E  h7 gsetup-plot2

% S, w: a  R6 f+ y
) F# J0 D- s; i  o$ X9 Asetup-plot3
* N2 B, S! F0 O, w, o
end
# l* |6 K5 Y( a; U/ p% l& e
* ^$ X4 b& A7 d;;run time procedures, Q5 l' j- A+ z% L' r: f

. Y# u& N! ]: ~" ^* Fto go  _' P( I% x5 N4 e0 S2 x

3 q, J4 a& [2 L' r$ zask turtles [do-business]
) b3 j6 t" x4 ?% f/ f- l
end
1 K# y4 ]4 O; ^
9 K, e, g' L/ H6 o5 E( pto do-business
* ]$ h  ^& X  A/ h( {3 n
5 h0 Z: ]" i; I) Y1 @: ~# f0 h
# B& r. o0 W9 k1 b; ?
rt random 360
4 h, f; f  A+ `& A& B. a
( c9 d& A4 ?8 U: }* n4 N
fd 1
+ g7 u/ b0 `% n1 C# O" V! }& a

' S+ t3 L# p: h: I; p9 Rifelse(other turtles-here != nobody)[
* T/ r. X( }: A) h0 O

( j9 d1 ^6 g$ c% @$ R2 `# |4 `% vset customer one-of other turtles-here
, K( k4 B! t7 H/ W
& b* l9 I3 }) q8 e) U
;; set [customer] of customer myself
! Q2 X4 ]1 X+ v

2 G3 L9 ?: Z( P7 K8 c+ s! J* oset [trade-record-one] of self item (([who] of customer) - 1)
  A6 V7 y# ~  T/ G- e5 f; A& ^[trade-record-all]of self2 \' }! I; X  U' t0 f6 `- |' x
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

, i: t" b4 y4 I9 t) D( O% T
  g9 |; C1 h0 @set [trade-record-one] of customer item (([who] of self) - 1)" @; U% i  h5 D0 K3 G1 P
[trade-record-all]of customer

7 Q7 q, |. [  }, q1 z/ r( t/ J$ b7 G5 d& o) u7 D
set [trade-record-one-len] of self length [trade-record-one] of self
8 y" ~9 O; B+ I# R

! A0 X2 q: U) l7 e1 ^1 `3 fset trade-record-current( list (timer) (random money-upper-limit))
' m' k  [5 s3 l0 R$ S- m) v- o
0 S5 T$ J: S" H( r! n
ask self [do-trust]5 r& O# S- @7 ^1 W7 C) p
;;
先求ij的信任度
" ?* a! r. i) S" ]
) ?2 s& ]' S+ u! x* ~' P6 p: F" Vif ([trust-ok] of self)
& v$ v5 U+ R+ G2 j% U8 ^5 Y, \;;
根据ij的信任度来决定是否与j进行交易[# n! B/ {" E$ K. P
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
) D# s% n8 G$ b+ N* d1 c" I/ N1 ~2 q4 ^7 b3 |  P
[
/ f2 B- Y- ]  L5 T

3 T1 r$ n9 X7 o. O1 A7 N" fdo-trade

5 }$ u/ a) R0 V
' e7 D7 a: ?1 a/ o3 Q, |) eupdate-credibility-ijl
/ l) K. B  ~9 \8 {: b

  K$ S* q% _8 c0 q* Eupdate-credibility-list
  J% g5 Z2 J6 q! g$ S

, ~9 S: P8 j0 g; R7 k. |4 x! i  R# Q7 ]$ @2 Z2 l  b
update-global-reputation-list

, }9 @1 O7 ?, h. m: L. ^- _2 c5 D6 J/ \6 F  [9 O6 K
poll-class

: M$ q# m4 i& c9 a8 \+ q
7 a- i/ }5 G2 [: a$ vget-color

6 Y$ V/ T  }3 b2 \/ z  m% \% A
$ M" Q; z5 ?. d& o4 k9 c]]8 M0 m) P1 x7 l8 b

/ {6 u7 H( Z; Z5 K& S;;
如果所得的信任度满足条件,则进行交易) h& }1 m6 S& H1 B& l0 h8 N

* Q% V7 z3 H0 {, W8 {[
9 t8 H; r- F% f% b, i& {

, a- f* y( k; H  ~; r: G( Crt random 360

! z0 s* U, Q- i
0 m! y/ D; t8 J0 Wfd 1

, Y# {2 e3 F( E6 \1 k, e% c, O
) F/ C- M) F: Q( M9 b]

+ F4 z0 _& n! x1 b+ a
! y0 S' Q1 K: v/ ^6 xend

+ w/ t! l" o2 u- N6 l& ~
( C( p4 A# R% f0 C1 z; Wto do-trust 1 x9 Z3 x( v; X7 X$ g9 J) [
set trust-ok False
, ?9 w. l# f7 X2 p) }' O+ Y# `0 `. J- E  g. g

7 Z8 }) `( K3 M0 G- o4 F, [) c, {: tlet max-trade-times 01 o$ w4 ?7 _) i5 d2 ]
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( O8 L4 Q! n( Y/ m+ \, H9 P" t
let max-trade-money 0
+ c* I+ W4 r2 L) V( @foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- {+ r( D' j6 {& ^* D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 Q2 ]) F' ^' V+ S  F- H

8 V: H# E: j* ~& P

: c* p& S# F7 s, F+ yget-global-proportion
2 ~7 `) c& D- ]0 elet trust-value6 f5 c" s5 |9 D
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)
) r9 X) {  ]; E/ D
if(trust-value > trade-trust-value)
* k  w2 [% t  A3 [1 p" d6 r4 W[set trust-ok true]5 X+ X& ?) Q5 s- k) z( \! Q$ q
end
& j& t$ b2 `) w, _& J
7 {! z( Y* p+ Y* Rto get-global-proportion' p7 w9 m) R2 D. M  r6 ^( v
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): D% Q5 u6 O6 I
[set global-proportion 0]2 ^, G0 _; _- i# o; ~6 F- k% u
[let i 08 m5 d# F( M9 d9 w$ M3 B5 Q! J2 X
let sum-money 0
$ A& T( U+ z3 {0 k9 r6 Wwhile[ i < people]2 p# X: P4 q# `# |" h
[2 C( Q; U( E  q, \. y
if( length (item i
7 l9 a! B5 N7 y6 e. `$ ~( `4 l[trade-record-all] of customer) > 3 )

/ E- p+ U7 g1 y1 e6 I+ h[
1 w0 o0 w$ r* j( q/ D: V- Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself)), [7 g4 b* F" p* {
]8 S  k9 ]" \; y) O8 O
]! L9 z* T  q5 ^" Z  x
let j 0
! Z* S- S+ {- w: klet note 0
+ T5 C# o6 o1 X" B1 k1 ewhile[ j < people]0 ~. M: M8 e8 M
[. n1 _3 ^6 c- ^/ W2 T  f9 h
if( length (item i
8 V2 A) b5 i2 a1 ?' Y[trade-record-all] of customer) > 3 )
& [5 z7 U2 K( y8 Q+ r+ N
[
* i4 l+ m. e9 M$ g9 l3 Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 t/ O0 C% o3 g7 ~' I7 i+ O' _6 {[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% o/ b& K: u; a$ X6 x! ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) G3 `8 E0 m9 I% V6 m0 u
], J4 W& V5 i/ N# ~0 @: ^, k
]9 [1 F; U/ U' W5 u! s
set global-proportion note
1 N- d: @# P. {; N2 W]  p. G  W3 a8 x5 g8 ~2 d
end
( T  \, K5 X) H& D& J$ g
# p. |+ j  ~" n" vto do-trade
! `" V3 \7 s' k5 l;;
这个过程实际上是给双方作出评价的过程
: X/ A; Y  Q  Yset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价( y5 p1 d, N+ `
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
9 f0 o9 j& B, E. Zset trade-record-current lput(timer) trade-record-current& T9 b% h# m9 ~* v
;;
评价时间
/ q2 v4 C+ `$ u# }- P/ i. Zask myself [
8 j1 P' X5 _0 o; L, ?. G, M/ \: ?1 supdate-local-reputation8 f9 c& w7 J) ^6 n
set trade-record-current lput([local-reputation] of myself) trade-record-current  n( H) g, T. J( ^
]) C6 I& K' W( |' k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) C; B# ~+ \- x1 _5 R: ~2 w1 V
;;
将此次交易的记录加入到trade-record-one
$ K5 }6 K! t8 \- j: m2 mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& q' u. P+ @7 ^8 c: u# j8 ]let note (item 2 trade-record-current )
" B' F# u% h- D! Aset trade-record-current$ c1 a0 J. z& Y# n5 [
(replace-item 2 trade-record-current (item 3 trade-record-current))
* U* n$ }- B0 A" [. E2 ]# a2 ?% P
set trade-record-current; X; ^% D/ J4 q: I
(replace-item 3 trade-record-current note)
6 G9 H* w9 i  o7 B2 M- h8 ?# G+ N2 k8 \& L" U2 [" c& ]  n- W! X
/ u3 y; Y1 c$ e3 K
ask customer [- E. b, f8 o6 C2 X
update-local-reputation
1 D  A, i" T6 d' ~0 m1 |set trade-record-current
$ d* j& E* G0 g. Q; A5 I- i, x(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

9 `( {( L- z0 n; y; n0 U4 o1 c! @! d]
! s3 {+ H$ }! v! n3 h# `7 V( D
) x) L$ j  T" x  e

6 N" s5 _; V  ~+ o  Q' j5 h; nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" u# |- ^( m% m- B$ {' j9 Q( Z. n3 o

6 T* Z5 Q  H* T7 l) wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 A" z1 J. P1 i' H1 s$ o3 Z9 ]
;;
将此次交易的记录加入到customertrade-record-all* [$ d$ |# h! l- E6 n( k- [  E
end! P" g4 B6 s; h" @6 J

4 b. O; {6 K, D$ q' X6 s4 r4 {to update-local-reputation0 l" V1 {* |1 o
set [trade-record-one-len] of myself length [trade-record-one] of myself* u9 z( U' B0 q! B

/ K3 R- Q- m1 u/ F
" l) D4 x3 p( X, @+ \7 p;;if [trade-record-one-len] of myself > 3
$ Z( Z, I0 i- R6 I# [
update-neighbor-total' @) P! [  y$ K+ K. [1 j4 X4 u) Y$ |% n
;;
更新邻居节点的数目,在此进行8 {5 H7 s6 q1 G8 y) m* H, I* `
let i 3
- F" j' v9 u6 I' r% Plet sum-time 0
: v) \* P" f. h% ]; z" }8 mwhile[i < [trade-record-one-len] of myself]
( j' _" j- W. _. J) G: ?9 e[* }/ W- y2 F- F+ O0 v% j0 J: `* l# O/ a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& f' V, ^5 o" \2 T5 E6 f* G
set i
$ I' \  I6 H3 r! U$ T8 j8 a) i% m( i + 1)

' ~4 V  {$ ^2 W2 i& \! o; Z]
/ G& Q& ]3 M1 E' olet j 3" i5 [! f2 s: U* ?& D5 X
let sum-money 0$ B0 ]0 `* b, h* K. {7 x
while[j < [trade-record-one-len] of myself]) ]. m2 V& c2 v
[! B: W, d" N; E
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)
7 G; g" j" X% y' G5 J0 f8 Tset j; F. X/ F( k( h5 }/ S
( j + 1)

' ]+ g. \* n$ F, l]) a# P2 ?# v0 j5 s9 @! X- Y
let k 3
1 g+ W5 r( T$ I6 Q" D2 I5 k7 ulet power 0
& a% A2 j! S5 ], o  }4 R( Qlet local 0
% Q  l/ O" Q1 V. w. i9 O+ J  ewhile [k <[trade-record-one-len] of myself]
: @+ s: ]# N! O/ `[1 P4 i: ?' Z1 H; g  q
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) 0 _8 X0 T& H+ D' I% g
set k (k + 1)6 b; I: E+ B2 |$ _& q& S" ]; R
]
. t( E; e% U7 Z0 yset [local-reputation] of myself (local); \, V) Q" O  \
end. k) {  T  w( g8 O% E( B5 i

% [: M+ i. _* Z+ q) t0 f" P. ato update-neighbor-total) @4 n! q: F7 h1 U& `# `

- o' w) R) k9 ]& C5 j# k; Q7 |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], O2 \/ s; K5 e, c# \& N: G' S

  t' C  \: F3 Z; Q" p  Z" J
, C. b# V8 `/ t% {$ m
end
0 n$ j$ N" r1 j$ t$ E  I
6 d# B* c. Q% Uto update-credibility-ijl 2 v# F5 B) [2 F% o+ r

! `2 O$ x7 }; L1 f. c;;
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。* A$ j  ]8 }  B, g5 J  Z
let l 0' L6 P: o) ^1 K- n3 F  c0 t; v! g. g
while[ l < people ]
, u& K( a6 ^* g' h, v;;
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
4 l0 F# r  X5 F! p[
! n7 V- }, K: d) h6 Hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer). v* L8 G( R" x
if (trade-record-one-j-l-len > 3). E7 Q7 [. l: D' }) [3 O$ U
[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; |2 ^+ R) M; ?0 l% \6 H, |# B
let i 39 p, b, P, Z' e/ e  E
let sum-time 0
/ M7 M! g( G1 E  K5 Lwhile[i < trade-record-one-len]
8 A/ W( c$ E4 b1 Q$ q[
2 j& V7 `7 p2 Mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 L: N/ v' T: }4 r+ X& @
set i0 s9 e. T' r5 D$ q7 k. ^: F
( i + 1)

8 P" H& j2 b8 I) o: c6 d8 c7 c]9 H+ s0 H- X" g" m; N( f5 i
let credibility-i-j-l 0
8 O- n+ m+ O1 I- }( n: x. N2 ]5 R;;i
评价(jjl的评价)2 ~# g0 Z" }0 H' [
let j 31 j) n$ w6 E5 {! d
let k 4
! K7 k6 D4 I( l& ^7 e" nwhile[j < trade-record-one-len]. n; m( W! l; A$ G8 v. p8 u
[8 D. t, W: {: w- h
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
5 a9 e9 Z4 z& G% _3 Q2 n/ T; W7 Zset 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, A: a& b. a% `7 d
set j
2 e, r( I; X7 Y) P+ s( j + 1)

$ _% {& E5 N" c8 z9 g! _]
  _+ H7 C+ o+ n! P) l0 T! p! iset [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 ))8 q8 ^, B& d1 p: u

8 R3 g. C0 x; `: \* M: x3 ^

! D! w& _6 @8 l- o# o0 hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). p; U- d' O0 b: c# I
;;
及时更新il的评价质量的评价
' C$ G* m5 `- L2 g# s* h! {  t  o, _set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' b8 `$ H1 E9 T8 g) G$ i9 [  O+ l/ Mset l (l + 1); _6 U# W5 b2 m8 m8 T  y- q; |
]
1 H6 ^6 p/ b( d3 x3 C, [1 bend" e2 w9 |/ z4 s6 o% q# ?/ D+ R# r$ h$ j
6 X" ^# x- [! g. j& T( I/ l5 p$ a
to update-credibility-list
9 R3 U8 i  S9 P8 \$ M! Ylet i 0* g# a3 }" \2 X% |7 [' G
while[i < people]
; q( i5 E  i1 ~! ~4 G& B" k6 {[/ L# V9 u% Z! d* Y, m1 C$ n
let j 0
" c# y, J& w" @! P3 blet note 0
" T+ p4 ~3 v& ~  ^let k 0
2 W8 O8 w  b" ?& R: k;;
计作出过评价的邻居节点的数目! q. |: Z1 S/ ~1 n' E8 q
while[j < people]! X& m1 o* B& m  t+ g
[
9 ^& O1 C, S( G' a8 z" j) h) }5 fif (item j( [credibility] of turtle (i + 1)) != -1)  L5 V+ K+ c& A
;;
判断是否给本turtle的评价质量做出过评价的节点
4 ]1 g1 P) u' P# Q2 R9 y[set note (note + item j ([credibility]of turtle (i + 1)))+ W' F0 O3 R3 L+ W( I7 e
;;*(exp (-(people - 2)))/(people - 2))]
( ^9 [9 q; Q1 @# ^
set k (k + 1)
7 i* ^+ O, C& B7 U]& ^4 H- G: y, @
set j (j + 1)0 F) _" w- A4 K" L3 Q% d
]! t# }1 q9 ^: ~- K& v7 F: ]2 B) H% N
set note (note *(exp (- (1 / k)))/ k)! W, ^( w5 |- I2 G
set credibility-list (replace-item i credibility-list note)
9 ?( M# ^5 d. L; Hset i (i + 1)' E8 J6 s+ N, \, o. H
]0 x; C* p# G& C1 Q2 L& m0 \  ~
end% @) |6 c, n& c; X

/ t' X; m, K9 C) pto update-global-reputation-list* B& C3 d8 {$ ^8 w0 A4 Z1 x
let j 07 H8 I+ G! N$ w7 p; n: h# h& i; X  o
while[j < people]
2 d. T$ X4 U0 V% a6 a[# T& W# y' s) f( `5 N/ W$ Q, I4 C* h
let new 0# p; e- b# s$ d: C
;;
暂存新的一个全局声誉
) l2 s% m# M$ H( W0 elet i 0! t( |5 t, O) U" T
let sum-money 0
4 d2 v0 H# `( t" f9 ~9 v; G2 `9 Hlet credibility-money 0
2 B) N' C' a  Z2 G- l# Owhile [i < people]4 m- n' H, P$ r- L9 l/ @
[
% q  Y! d3 P$ f( l$ ?set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ |! y/ K5 K1 vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' p; N/ m' i6 Z# G) v
set i (i + 1)  u, _* {- H/ _, s' ~. L
]. i1 x8 H6 ?3 ?2 f
let k 0
2 J6 W  ]) v: ]  ~9 G+ A3 D7 {) wlet new1 0: x7 B$ \* i+ i. ^5 o5 |
while [k < people]6 B  \! y) _/ W4 Y# H4 Q- h- w/ W
[
3 ]  n, R3 Y! E% O7 Q( @: n- wset 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)% x: k& y5 f* ~/ t) \' e% M
set k (k + 1)
8 c; |9 u! b) y# B4 R]3 U4 g9 a' [  {" _" ?0 |! R6 o
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 c7 M# u' [+ f
set global-reputation-list (replace-item j global-reputation-list new)) t# b% p$ Q2 E2 j: E. R% `2 v
set j (j + 1)
; g! E; s/ L8 T, }; W]: u6 r( @0 h; r
end. T; ^  g4 V( M& O5 R4 _, O, y
( Y5 A) u7 b2 ]) ]) b$ A) g

, v  R/ k* b3 @, l
+ ~% q7 E; x, P- B0 B4 Y) q, o; D: J* Nto get-color
* A+ m7 W9 w+ P5 ?3 ]5 y9 g5 q5 ?- t% U7 x
set color blue
; n4 D3 |# S9 `1 t
end
9 R* [8 i/ h+ ?  _. \1 K
" i8 V4 F7 e+ j: Y, mto poll-class: X& J  l, x; W0 B) K1 {
end$ Z) l- l& y, V

! F0 c+ y% Q3 f5 k6 L5 _" Hto setup-plot1
# C' f6 Q9 e( ~+ w+ l) G
8 a1 p3 Y8 g; S% Q" h! Mset-current-plot "Trends-of-Local-reputation"

" K& _$ M+ Z2 R/ R* Y# i+ u
. p( J) H" u2 Q' T+ L* M: ~set-plot-x-range 0 xmax
/ i! C* c) [0 d4 a$ T' h: G. J
* V+ W0 g& X  A( z) z; W+ Q8 {
set-plot-y-range 0.0 ymax

9 L: l) e6 u% j$ C- q. tend
8 v# c0 g" y- A& y, [1 _
+ G# u* O; s4 {0 ~5 x+ mto setup-plot25 T* u$ A+ n5 E( R
8 ?1 y2 f; O( k, Y% L
set-current-plot "Trends-of-global-reputation"

1 g$ F' v) V, m' |  ]! d
# @/ }! y) |3 `0 t/ ~, J5 h) L+ ]set-plot-x-range 0 xmax

% K, [, p: D* j' ]) i  w  E1 q+ y* j( J7 e2 J, M
set-plot-y-range 0.0 ymax

; V9 K/ y4 q2 _; V% E. Iend+ I% ]4 |. d$ L; O
" w+ \/ z3 x' `% U9 `+ ~0 T. z# c
to setup-plot3  S- p. r6 A* b8 U

: s3 ?. U- A' `1 p) ^! x3 ~& bset-current-plot "Trends-of-credibility"

8 ]" z7 o& e0 t1 E8 {' L$ s* V6 T) F- v. S' S4 ?: f1 G2 K
set-plot-x-range 0 xmax
/ ]# O9 {7 j/ O. c5 N
7 H5 `/ n' i( H+ u
set-plot-y-range 0.0 ymax

2 Y! r* e* P0 e  J+ i+ x: n+ i4 o0 Tend
) f1 z2 h3 B' l$ O) Y; x3 B6 G$ W5 ^
to do-plots
6 L" |8 L! Q+ ~8 \set-current-plot "Trends-of-Local-reputation"
) W5 O( ~$ h9 P8 g4 w$ Fset-current-plot-pen "Honest service"
8 |6 }+ k- L  ]1 X  b/ Iend5 @0 S9 @: R6 t
6 V8 ~( D0 ~$ ]) v
[ 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.
+ p/ I: x  ]6 J$ o
7 B; D# F7 Q2 c4 f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, 2026-2-28 23:55 , Processed in 0.020050 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