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: 10522|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:
' _' n6 ^0 I$ y0 }, ]  u( ]2 Nto do-business : q, C& l: y- L/ E
rt random 360
) C/ f2 ^' Q1 P fd 1
, M. ~/ V5 Y; y ifelse(other turtles-here != nobody)[
, \( g+ [8 ]% T' [. \" c# L   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.
) r! B& w/ H/ l' Q   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    8 W- j, n" S5 z* j( V
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
6 G  l: Q# b" G8 i% |6 B  [   set [trade-record-one-len] of self length [trade-record-one] of self
9 w( v; \: c$ D# W  d   set trade-record-current( list (timer) (random money-upper-limit))+ Y- L6 }0 k3 y+ _) q

$ p. a) ~  {- H5 c问题的提示如下:
2 ?7 p8 K+ V1 Y& _
- t2 h; u* Z  \- R8 W  g7 v- Ferror while turtle 50 running OF in procedure DO-BUSINESS
4 o# ]/ @4 K+ H0 O  called by procedure GO6 n8 f2 u" h: K3 z, z# y' |
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
+ [# e- i! f3 ^/ h
(halted running of go)' }) O: `: y# x
# @7 d/ M, D# Y3 ]8 U( A
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~~
& X5 u" E% R1 M; g) I$ k1 u/ 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: P/ Z, Q" {1 P; n; W
globals[  d0 F9 p: p( i+ c0 K
xmax
7 N( T. }  f. _  m2 u; G/ X# cymax
/ D' a9 |6 y! s. `" ~+ fglobal-reputation-list
  h3 n) Y( D' |6 T; C  `2 K
0 h. p5 F2 K% I+ ~;;
每一个turtle的全局声誉都存在此LIST
5 w; [" j$ Z' s) `7 A& c% Pcredibility-list
8 }4 C0 T, T; T3 {;;
每一个turtle的评价可信度$ Q5 X1 s! m$ i8 H4 P" W1 d
honest-service6 a% z/ k* y& r( o# @. y6 }
unhonest-service
3 q# d& r0 w( F: qoscillation
: w, p) |3 m, |5 B0 t; @% `rand-dynamic2 y8 v, e3 S. ^, {
]
. l* d  J2 p9 @5 A
  k# `  s  _) I/ w3 C* c! |$ ?# d0 wturtles-own[6 g% `9 G" B1 O5 s, a
trade-record-all- J) T3 d( a9 J8 E" G
;;a list of lists,
trade-record-one组成
) |0 }1 x6 K9 f! wtrade-record-one3 D* u# t) o( L% T# 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
6 `. v, r2 y& G3 U' I$ L( R+ c6 L
- I! B8 y2 N1 B0 l, v! _( S;;[
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]]/ C& n' t2 s+ }8 U; ]
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]" P* W6 }' Z% o) D
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
8 Z0 z* V+ d+ O1 }6 {neighbor-total; w, p, ]/ J  v
;;
记录该turtle的邻居节点的数目# r/ W6 J" C/ K3 @/ p2 F
trade-time- b5 `% t) j0 H( X; Q
;;
当前发生交易的turtle的交易时间
/ @1 _, Q+ A  {6 W& _0 @! cappraise-give
; i1 D2 q( k* v3 Z4 y/ k2 p" a) e;;
当前发生交易时给出的评价
) g+ \0 \5 M! H; i: w) Dappraise-receive8 J+ V+ b1 F; S3 o5 {* E# T( @6 w
;;
当前发生交易时收到的评价) z, X  R+ h+ r
appraise-time
8 Y9 K( W7 ?8 P. c3 J$ l  ^2 ?* N;;
当前发生交易时的评价时间
# D# W" {9 m8 f; |3 S, Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉+ @$ J" n3 R# B* k) t  Q
trade-times-total: [- M+ U! I6 v, }/ |1 M0 k
;;
与当前turtle的交易总次数  L% F5 a1 c3 z4 b! |4 O
trade-money-total5 ~6 O4 h- q/ |, H
;;
与当前turtle的交易总金额
. Y' r: S4 i3 j$ d5 S4 S& F* Slocal-reputation
) b0 Z5 ?! @' aglobal-reputation0 `, H2 x5 g9 q" b
credibility
( f$ V1 o6 g, s0 v* G7 s1 y;;
评价可信度,每次交易后都需要更新
3 t9 c3 Y, C3 ]6 E8 P! Ycredibility-all
. ^& `9 t  k: P" Y;;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( s, j, x+ a7 {! T) a* v
7 F" w$ B8 B( y7 r
;;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0.52 O; q, g6 i3 z) [8 {% s& I5 U! u
credibility-one8 x/ o9 v9 i" _! j1 C7 \* T
;;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" g6 }7 I" u7 Y
global-proportion% L2 l# w( H! w4 t7 ?
customer
, n- k" H& B& ?: ~  `customer-no
. g& k/ w+ c, `% M( {+ L5 ~9 [trust-ok
8 ]* p; G$ V( H' U7 ?trade-record-one-len;;trade-record-one的长度, n, G. g" O; U+ C# k- _# @( ]+ X
]) l5 Q) R7 y! b' u/ v  e) L
% ^! m: ~% M7 \, l7 U- {. a
;;setup procedure3 J1 s2 M2 ?7 j2 H4 n) s1 i
& k8 p2 y0 u# H. a1 f
to setup
) ~9 S' L+ W* ?+ E
0 g; O1 c' u4 W3 Fca

! {1 ^. c5 S- L* ]- `4 d) x0 q4 @
initialize-settings
5 R2 D! d% H  }+ U
1 B' ^% ^/ @( @! D1 \' E- g
crt people [setup-turtles]
/ V' u; ^" f+ G. F2 _. u: R6 C% K

) F! }0 U2 y9 h9 W' Sreset-timer

9 {1 R% j6 t) c, Q0 y9 j) B$ u3 `+ z+ U2 M. m1 k: Q0 z
poll-class
' \0 u5 L1 D4 n
9 [  l" L- A! f( f$ `
setup-plots

5 w9 G9 {( P2 }' ?* U
7 C, q& D! }6 }: Ldo-plots

% l/ l/ }6 i; W1 u' J8 N8 o4 y+ Iend
& A' u- I( j) T  ^. Q" p( ]: I: e
to initialize-settings
# H0 v& ]9 R1 J" k% f3 M2 }0 V4 S' Q( ]5 E5 s( R+ l; K: P$ K9 j8 K
set global-reputation-list []

; W+ @8 O" q) p5 i5 ~0 z' K) o+ g6 {: R! M
set credibility-list n-values people [0.5]

% Z* D! q7 H2 L% e8 @% n. y
4 I. Z4 E$ h+ i. tset honest-service 0
, z9 r4 z8 j4 T6 Y" L) [; q* c

2 t3 z$ R, _% F: N- Fset unhonest-service 0
+ [' u" i3 A4 e2 d! P+ @! @
) x- G. B+ {- y( e, T% u% @! y' \
set oscillation 0

3 y" y8 g% ^5 s& P5 c2 Y+ X# @; |6 m$ N9 c1 t5 N+ Z1 ^8 E& ?6 X2 E
set rand-dynamic 0
$ d6 X# l0 [" i: t! _* f! _
end
, y0 A4 j) X) |/ o/ y8 U' e0 V3 y$ c  W
to setup-turtles
. m6 ?! ?+ }  Bset shape "person"
& z, t# f" K. P. U3 S* Dsetxy random-xcor random-ycor
5 q% K. p1 z" a- b, ~set trade-record-one []
. u! |2 m! g1 f5 ^4 z" N! U; x

$ S' f2 }; m# V$ U/ lset trade-record-all n-values people [(list (? + 1) 0 0)] + F3 c6 O( t" m( J/ K3 q$ I
) d% K- q$ f$ \, i! G; N+ X5 M
set trade-record-current []# z/ q1 u0 S1 ^8 c" w; V; ]
set credibility-receive []9 I2 ]( T$ }7 w
set local-reputation 0.5
6 E* Y2 ?7 [- S0 H1 c8 A* H7 wset neighbor-total 0/ Q4 Q$ E- @9 ~' _6 o1 S+ f
set trade-times-total 0: l3 x6 H3 k: E- Y
set trade-money-total 0, I% z* d: ~( V
set customer nobody$ M/ h! G3 R: G* m& y% G! y
set credibility-all n-values people [creat-credibility]
2 R4 x8 t) m( U; a0 {. ]5 Rset credibility n-values people [-1]" W6 V0 ~% V3 N6 R9 T% y. m
get-color; D4 m7 C% k" N2 [5 _
0 O+ z" s( o9 A! d9 g
end9 z; T- U) E* O- ]/ q* W

+ w: y  k, N0 y) o# P6 r; Hto-report creat-credibility
5 m  w) S8 X; k2 q$ I9 Qreport n-values people [0.5]
/ r/ ~3 j( W0 V( j. E/ |end
- K  |3 Q% e* }, x$ ^* {# Q5 X! F. d* H4 a" X
to setup-plots# J/ w) C+ s) l+ M
. Z* d: Q) F4 g8 L. n+ G+ I# P
set xmax 30

1 h* l# Q  P) n! |5 n5 t* y# e( ~5 K$ a8 F9 `7 H* x; }
set ymax 1.0
! |" W3 Q- {8 I8 A( M+ w+ @

9 g9 e% |2 D7 S: i0 w0 T) ?clear-all-plots
) T# j% e6 A' C0 P$ p- b
' P% j2 G4 m! W9 ~; g( J
setup-plot1

  q2 B9 n. O& r1 Y# L$ `  g" a9 P
& S) ^$ e. m' i6 a5 `, O9 tsetup-plot2

* Z( i8 H  \2 }1 y  `
$ k, G9 d. O! U1 Hsetup-plot3
1 C0 d# O5 m  u% j- K$ z
end' z1 r2 {  i% C4 R- R
3 O& F' s0 K# ~! I9 ^8 }( G- a
;;run time procedures, W% y1 l! v6 a5 k

' M% Z- I; {; D/ P$ tto go8 m: A, b' \9 B

& ?2 J& a- m" `. I# V3 I; E6 fask turtles [do-business]
1 u& w3 @" l: h9 a8 a; Z) ~
end6 j1 K& q& j# [9 ^6 D

9 D5 X) R. y/ `6 Z" ^' t3 n3 kto do-business . s$ x3 P9 Q$ r# ?! L

& r/ g8 D/ S! Q% u7 c9 {2 U6 D7 F% g* }% \& a0 n
rt random 360

1 _$ T- y  M( @; H' v; c: F" B. Q9 i0 M
, q$ k3 c9 X$ P8 w! \) T0 ffd 1

, |' u8 V: A. N0 X% [7 I1 X
/ |; {, F( L3 B5 E3 F9 ?ifelse(other turtles-here != nobody)[

$ N, ]( E6 b+ j5 s% h# k) r: `! M) z" v
set customer one-of other turtles-here
. I$ `$ M! J' w+ D  ^$ j: V
$ G; X2 s& l* l. p
;; set [customer] of customer myself

/ v2 V* `" M7 l
! R$ G+ v. e. f5 Fset [trade-record-one] of self item (([who] of customer) - 1)
- a, [  B0 D+ }5 e# [4 i1 d6 m[trade-record-all]of self
. H- v; N3 f8 o) g/ };;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ ^( V- ?0 v6 F* j& T( h+ s

9 o. D* A* r, _9 ^8 y  yset [trade-record-one] of customer item (([who] of self) - 1)" J, K) x1 ~7 K" R% \
[trade-record-all]of customer

) {$ X: w; x2 m% t5 ~9 E* j* g; \0 N. g1 H  s/ N7 c
set [trade-record-one-len] of self length [trade-record-one] of self

' N/ ~* f8 z6 I
. `+ b* s- l  Vset trade-record-current( list (timer) (random money-upper-limit))

% v4 M  K" ~* ]  n: ]" c7 O2 z0 h6 n/ {  s' d7 H! ]  ]
ask self [do-trust]& G4 _1 v0 S: k2 A* ?; D# J
;;
先求ij的信任度
# ?, h9 l% K" `- C0 \/ j5 q# U5 N/ u  g& k( h& }; X& p; D6 S
if ([trust-ok] of self)
4 w. }# o. K; R  h: e, W; G1 Q' c;;
根据ij的信任度来决定是否与j进行交易[
# g7 m( T1 E9 T/ d1 Uask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
8 n1 k* h) K7 h6 j' a3 B( p
) a) L5 i0 T6 J; _[
1 W+ h: z" }' [9 V5 R9 ~

( `# d( r* V" T2 ^" odo-trade

. f1 T7 ?, h0 }5 h9 O- |4 m
0 C) R- D  s' p1 v& z+ }update-credibility-ijl

9 Y" a1 H: N  }- {) f& e) Q0 f8 e0 Y3 i" D2 K! l
update-credibility-list& ^- w( F- M& r  p* Q
! w7 H8 r- C5 H! M$ B: Q8 o) k, |

& E4 {+ a! R0 Mupdate-global-reputation-list
$ D; n9 b8 _! r& \; u
( H! ^( e9 G+ F& K$ W5 A! l
poll-class
$ x4 Z6 [5 ]$ S1 `
) X. y. [# ?) r. D9 ^" o
get-color
& o; m7 [0 `0 o
' p* Q- F' ?& n* w0 l" a
]]5 A7 m+ [0 P7 z- d, Q* z* q* V

5 ^2 J; P- F6 D2 M; I/ n: u;;
如果所得的信任度满足条件,则进行交易
2 F/ s6 r" |  x- Z4 Y; E, R' V/ p! B; _% U0 d( ~2 n1 M: [+ B; ?" d
[

. F, u6 s/ [& q# R/ x5 ^7 d  d
8 J/ {9 E" r6 t8 o% a. ^rt random 360
# y3 d# w2 z- t- j7 @8 ~9 O
" l7 O5 A' X+ P
fd 1
+ G' `- s' q3 @' m' X: \- a

* ?3 t  H$ A! x" d# j]

* c  P2 Y7 n/ N1 y9 l- ~
- |+ }" [/ |! G3 aend

2 k$ t) H% J4 N( @! ~# w# W: X
- D- ~) A9 [' Y* v: E0 eto do-trust
1 d$ v8 Q! x8 y6 w# _2 h2 ~: a& kset trust-ok False
3 o$ K7 m$ P" Y, P5 r% r/ F8 Q% d, J/ D# t9 B- G+ p

5 |1 O, z/ R3 g2 S! R! I% glet max-trade-times 00 n8 }; W( P9 l$ f4 O
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ E, N: p/ F8 j9 F- w. }1 Slet max-trade-money 0
& O* R' ]6 P/ x9 u' ~foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' m  |( r6 r0 }, f! o; blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); l" `0 v: v' J% A- ^, c2 j8 P, Y

6 j/ c) K) \) a9 R0 I4 M: q

. K; _$ m8 z. P3 m; c& d) y4 ]get-global-proportion
1 h* T8 l/ h. _' P1 R- }( clet trust-value5 ~, q& C/ U8 g3 E& w$ l: x
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)
1 j- y- {; B' ~2 `  L1 s9 U
if(trust-value > trade-trust-value)) L1 c! Y: J; n1 C5 ~1 Y( C% {
[set trust-ok true]7 V* T, l" m% y
end0 g: \' T" I" j# V+ K  e4 L$ T

/ Q8 W. ~) |* @to get-global-proportion7 l" U  d9 M3 {' u7 j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' x3 u& j( Q  V
[set global-proportion 0]6 c0 M/ a6 J4 l/ A; H2 `
[let i 0
  ]- w2 Q% {- ]; j3 ^8 L0 mlet sum-money 0
  G% v7 p  o/ J( I: p8 O; F$ fwhile[ i < people]7 P1 L0 w$ L! K* d% u8 Z% d4 K
[! n; Q7 \- n, W7 d- O0 m* `
if( length (item i0 Z* j; q) T( ^( d% C' w0 i) b+ r6 q
[trade-record-all] of customer) > 3 )

, [# w) j" l$ l) }; T[
8 D4 }* D1 S8 Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. ~& ?- @1 z: v0 W]/ g: A) A9 C& ]9 k
]& d+ r; Y; p  Q
let j 0# S+ v9 c: d# m0 s
let note 0$ f+ |% F$ M8 P3 {: _
while[ j < people]
' V+ X- H& P& |% U1 }[4 \+ Q2 l: g& v1 }" S! K+ i; E
if( length (item i# h* d0 v) }& O! o5 U+ U
[trade-record-all] of customer) > 3 )
5 O% u* A  f# H* w3 p. R, y3 W$ ^. i
[
! Z4 K9 n" V1 o( Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# Y, X! u& j$ b$ [% Y3 \[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 G! ~$ Z4 Z. }3 W1 {! R; }  Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: O- g% C' R, v0 V- i
]) f5 X, U5 l. {2 V7 y8 g9 ~; A& K
]6 p; j8 a8 v  n1 u
set global-proportion note
. h5 O' o% ]1 y( y. L  I8 n]
+ _! n/ [9 q" R: l+ t# tend; z0 \2 f7 B8 G+ Q- R# T

3 O' `& p+ J* }1 j2 nto do-trade
0 T) t" s+ i+ j8 n;;
这个过程实际上是给双方作出评价的过程* {8 z$ W' \1 m3 @) J
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价* `) a8 a- P% ?+ s' }
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
/ j9 |6 r/ O- o$ S8 e: gset trade-record-current lput(timer) trade-record-current
$ y) C0 v1 }9 Y/ o;;
评价时间. _9 N% W/ S) U9 }* S- @, d
ask myself [% i5 p( S" Q: g( X- S# J) \5 F
update-local-reputation$ }6 ^4 w- M& |( E  C; F( A2 k: a7 i5 g
set trade-record-current lput([local-reputation] of myself) trade-record-current
2 C. j6 g* Z' h, y: H4 j! _]& J7 ?2 z7 r, k6 j  u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" |7 c) C4 Q' G3 J. S4 r;;
将此次交易的记录加入到trade-record-one* B0 K) `+ C1 B1 h" D
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ ?; ~9 p) {4 W7 vlet note (item 2 trade-record-current )0 H5 C& X" p2 f6 C8 N: T- a
set trade-record-current+ J/ H! m3 K9 z+ N9 |3 d' w
(replace-item 2 trade-record-current (item 3 trade-record-current))
& p1 v& ~0 Q" d) R3 Q- k1 A
set trade-record-current
. M7 l/ W8 \/ Q1 v' C+ W9 r9 W! o3 F(replace-item 3 trade-record-current note)0 K/ g2 z7 s" G
* e  [! `. X1 e, L

# Z) w+ K9 [8 w+ task customer [# Z5 B# D  f' F& r0 Y8 a2 U
update-local-reputation
; M+ c1 G4 h! y: ?/ ?! R  S* x7 s6 Iset trade-record-current' G' E: w$ A* {/ j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

) m9 R. p( Y9 F6 z1 n" M0 h+ v" ]]
0 r. L, i# p% h
& i4 v' `2 ~  l
; U& Z2 v4 T9 J, B
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ q( I  C4 S6 {+ ?2 a
$ |! m& N5 r0 w! I( V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 r9 O( E2 k, i! P& C4 O$ V* }
;;
将此次交易的记录加入到customertrade-record-all) O/ X$ j* I* s
end6 z. m2 t# V2 q/ D
. K8 M0 U& t3 l) }; |. h7 H7 X
to update-local-reputation  j5 [# f$ i% G8 {$ l" w
set [trade-record-one-len] of myself length [trade-record-one] of myself
* O6 U; N: G: d( N1 @, c; y7 v2 E  N$ Q- _; {4 @  {
8 t* a9 t1 `2 W$ N" T% V
;;if [trade-record-one-len] of myself > 3

. ]# t4 e7 c, y1 Y8 q+ aupdate-neighbor-total
! S; m' V8 A1 Q/ c4 e* V9 D;;
更新邻居节点的数目,在此进行: b* n+ K. o+ b" ]. i
let i 3$ g8 Y6 ?* [" r( [6 H
let sum-time 0) G( {: V# ?2 Q$ L: F" }) d. H
while[i < [trade-record-one-len] of myself]8 y2 Z1 h4 j1 q1 E# f
[1 g! _1 y' A' w. I2 K% W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 Z5 y+ B1 g* \3 _, G
set i5 S. Z8 L* H+ T6 b0 m
( i + 1)
2 _" a+ l( _( p1 j9 Z: {
]# u8 A3 D$ L! F; K% c: b
let j 3
* G2 Q, O6 ?' F8 slet sum-money 0
. Y8 U( z0 p" O) J( ^* }while[j < [trade-record-one-len] of myself]# [# q' a# ^+ P
[8 X3 O6 e5 G$ y8 _. l
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)
0 H7 G. c  ?* u  p7 r( X2 Pset j2 r9 O  l5 u$ \: G( ]8 k
( j + 1)
7 T- Y) L1 k% w  g) y. @0 u
]
6 @& J1 S' N8 U9 U" elet k 32 J5 p" z! _$ A+ D
let power 0
3 y  y3 C9 L0 R3 k" llet local 0
0 c- V# L. N6 Ywhile [k <[trade-record-one-len] of myself]- w- J. t5 R3 R& T7 U) Y5 C
[* j  m7 `" a& V. z: C6 M
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 @  m- V6 a5 z& R" J8 n8 X* s
set k (k + 1)' F- }& V7 J) B/ V
]0 ?, }) _- c+ y. H& G7 o* l9 g! v
set [local-reputation] of myself (local)* Y0 l* ^0 b# Z3 t
end
. c0 q4 G( Y( Z0 {# s7 q
  p( {: z7 H4 }# U% J3 Wto update-neighbor-total
* f. G+ h. ~" k3 d' J
' u) D/ h- ^+ L, _( F9 l& fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% V5 o- C2 P2 Z! m, O! L
6 g( g, F& J1 T2 H$ M
) V6 v+ I+ a9 z+ D2 `( A- p
end
, V( b* T( p( |
+ ~9 A2 ^  k) `3 v& R. Lto update-credibility-ijl . b3 R, I9 v+ w6 n
* r5 L7 X8 G- ^) p, R
;;
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。) h# g: I/ ^3 s0 j( q
let l 0
. s  H+ w8 k# H* O# hwhile[ l < people ]
9 U8 T* b7 V* m2 o7 g;;
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
$ s1 L0 V7 D! M% U2 @  h[
; [& A4 Q6 p6 b$ Y: Clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 y% y% P" d- P; Q) m. P
if (trade-record-one-j-l-len > 3)
. i0 R5 Z, W# x4 F( q( V! ?- n) T) G[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
/ u. L1 e% T, ?( Z7 L5 }$ Tlet i 3
0 r! b7 s" Z' l. T( ~- {let sum-time 0
' S8 ^6 Q, }. j/ p5 I! Cwhile[i < trade-record-one-len]
" _4 ^8 Q2 z; E8 h[; v# \, x5 p) G2 R
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 K5 G% k- O7 Pset i
* H! O+ S) h- i( i + 1)
4 i2 U( _+ e: I
]
; q* k/ s; w% d+ I! N8 t; S5 Zlet credibility-i-j-l 04 ?$ i; `# j: `; R% ?" S
;;i
评价(jjl的评价)1 ~, Q1 A/ q7 b  a6 m' H) h
let j 3# ~4 z5 A/ y6 V+ W
let k 4* G* h. z' y1 G* E0 d4 [
while[j < trade-record-one-len]3 w. V1 u. O; G
[4 c1 O2 \# w! E' P5 r5 b  `
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9 `# P& N2 W; x) |% i& m5 Q
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)" ~6 L; R, G2 M8 ~6 K7 r
set j" l8 `* {$ R5 s6 L1 o+ T
( j + 1)

( r* A; v8 t7 N]/ c  a& R" S/ A6 S) `5 V' N( R
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 ))
9 T! o/ U# N3 m" u9 z! b1 I9 T1 R$ m+ ]- z

1 |$ q" o# r2 T0 W5 I/ H: ~; Llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% s' S' p6 G; ^+ K, ]7 F1 H+ l# k
;;
及时更新il的评价质量的评价; Y* j: U0 R0 U$ t# d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# a0 M( L  H) K& U' ~8 V
set l (l + 1)
3 o7 E, f' F- O8 s]
; K% ]$ k, D  k3 xend/ k; @1 J7 C: B9 R+ @6 L! |3 ~7 t
0 L/ x3 o/ }$ e7 K+ |" o# Y! q
to update-credibility-list
3 Q$ C' r1 h  E3 p5 p5 Olet i 09 o1 w# R* d/ J1 l% w2 }
while[i < people]
1 W5 ~, k3 b) n$ K[$ ^+ h: e5 o0 l
let j 0! }; U* f: y! J% Z) @1 U: G
let note 06 Q% W( d" s8 Q7 S$ B
let k 0
7 X$ q$ Q- V) Z9 I0 {% u1 `; R2 \;;
计作出过评价的邻居节点的数目9 K+ v$ m1 K# n9 A; p$ B$ g
while[j < people]
6 Y$ L- j- Y6 L' K[' {: p4 j. R2 I$ [/ A
if (item j( [credibility] of turtle (i + 1)) != -1)# _: f7 |8 t" B' `8 s! o
;;
判断是否给本turtle的评价质量做出过评价的节点
$ c% n1 e* w" m2 @[set note (note + item j ([credibility]of turtle (i + 1)))6 ]/ ]" J3 k$ d* B+ h
;;*(exp (-(people - 2)))/(people - 2))]

- V+ L! P9 o7 I4 U2 {9 ~set k (k + 1)
6 z. p! R8 S7 u7 p% \) m7 ]6 }: D$ G0 j]
% V% f! U. X3 b* S7 `6 }5 a$ i. p" pset j (j + 1)
2 O7 T2 m  T6 R; C. a  F]
/ P) J! ]0 P2 }, R3 Dset note (note *(exp (- (1 / k)))/ k)  I) X: w* ~+ j5 h
set credibility-list (replace-item i credibility-list note). W1 m' w8 k; ~' P+ e. H' s" B
set i (i + 1)
: ]; H8 h' k2 x  w! s]
, o+ A* K( R( n5 q: D) x8 {end
" L- @8 w$ x% B$ L8 a; D) `* o8 s* @! s
to update-global-reputation-list
; c5 d- D2 ^. d9 W" F. klet j 0' N! ?. n$ s! R# \3 z% N9 k
while[j < people]/ G/ C) V! c# Y/ f
[/ ?' K1 S/ Q& D" A4 B
let new 00 _6 L" ]9 p; `
;;
暂存新的一个全局声誉/ F( Y2 R9 w1 ?
let i 0
' D& ]1 ~* c; N6 M$ y; [; Clet sum-money 0. S! W/ w; S8 j+ \9 _' n1 M
let credibility-money 0
# p7 ~: ^* N7 j6 W  P4 f  |while [i < people]
8 s& A. C. z" I& `# X[
: c0 ~/ w/ n  W0 p4 L  Nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 Z2 c" M2 t$ |set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 O& [$ z0 }3 Mset i (i + 1)
6 Z! Z( N) [/ A3 a  ?/ W) [* Y]
" G5 D- E- t" G9 U3 mlet k 0  K. \  g1 j& n! Q. ?- i# W* g
let new1 0. r, `3 d% Q7 G2 @0 z# d3 i
while [k < people]
+ j1 U0 f. p/ D) Y6 v4 j[1 n" g- o$ {: A
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)
# d9 ]/ r9 u) dset k (k + 1)$ c, @. ?, [6 f. A) W) V
]
; w% y+ i# i7 S( ^6 d9 sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * E# O1 W, `1 r6 Q! `6 ?9 _7 ~& l
set global-reputation-list (replace-item j global-reputation-list new)$ ^. v8 ~+ r6 ^
set j (j + 1)
& K. y2 W. _0 s1 e]
; k+ O( i! {- Eend+ w4 q7 \/ A" v. V0 h% Z5 n5 d

) C% |7 ?5 j3 d) ]; `" D0 ~& P5 G! f# |, a8 Z; p5 R; O$ r

7 v/ C1 N% f' H! W+ H5 Rto get-color
, N) B7 P2 d/ m+ E8 F& k7 Z0 E
" m. h! N5 S! i' {3 g" mset color blue

1 F$ C+ {! S4 l, b1 n0 _: o" dend% k3 i1 v. t$ }* I+ S

- B5 B. a1 t+ yto poll-class
; R' k0 v' C; Y' |6 k9 {  Bend9 s9 ?) J$ x; h) v! D

( J) H; A) f1 ]2 g$ y0 M  |$ }to setup-plot17 C8 D! v; T$ a

$ m$ q! V: c+ h  `( E; O+ c; h9 Y. Pset-current-plot "Trends-of-Local-reputation"
1 a2 ]2 ~3 D& P" a

( o/ w7 l5 Q  |5 N! dset-plot-x-range 0 xmax
2 Z2 P! [0 `/ t! H$ k% w  Q
: S. y& m7 y' s5 ?6 X/ U' u% z1 I3 F* u
set-plot-y-range 0.0 ymax
- }- K: \6 M. Y2 R& f2 J
end# {4 z3 ]3 M$ D- x

( S2 ~! M5 K9 X% b% Z5 K* Y0 Qto setup-plot2# E3 ]; o3 M+ f; X

' Y+ _( U; J: S4 g/ fset-current-plot "Trends-of-global-reputation"

" z( v: P" u0 D1 |' c, P) K
! u; Z' `' _" n( @set-plot-x-range 0 xmax

0 ^2 c* q$ z' {% A  T% E' A
( I6 V4 y" g4 I' [6 rset-plot-y-range 0.0 ymax
' M4 V  G6 V$ U- S" _
end
8 Q" y9 g; j  e4 W) i2 S" w8 j7 I* q; @
to setup-plot3, D- p. a# f/ t/ e, _
- w- }; F& C1 E( e
set-current-plot "Trends-of-credibility"
2 s# Y5 {2 ]* f
$ p# Z( l3 E& T8 m, U+ G$ o
set-plot-x-range 0 xmax
8 ^4 a/ {. k$ T2 Y  I

. o/ m2 Y, O. fset-plot-y-range 0.0 ymax
- }& z1 S* [/ t7 j+ K
end
$ i# O. ?1 k% A3 e) I9 c3 x
. z; i; Q2 j9 P1 T4 }to do-plots
# R, q1 M# Q: _# R: H: _6 pset-current-plot "Trends-of-Local-reputation"
3 b& `; Y) n. U5 Aset-current-plot-pen "Honest service"
3 Q* Y  p% l9 J5 ^# bend9 }  g9 l+ Q0 t3 l

' w: s1 Y' [, h, j; z[ 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.: |; {7 g( y5 Q

0 |; y2 c5 C0 N! {; 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, 2025-11-24 16:13 , Processed in 0.021728 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