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: 12544|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:  r4 e# V6 _- i/ j0 _) n
to do-business 1 D8 i" r2 ?2 h- W8 ]
rt random 360
5 ?0 ~9 `. m. g fd 1, J. W: {5 t4 G- ?
ifelse(other turtles-here != nobody)[
% K- Q2 C/ [0 D) I. z. c   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.
2 F8 T: Z2 u* |& z$ a+ J+ A) Q7 I   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
$ ?9 w4 F$ z$ Z2 a2 M8 f: A   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
5 I/ u. q. y8 `) O7 }   set [trade-record-one-len] of self length [trade-record-one] of self
  [  N; Q% I% b' p+ s   set trade-record-current( list (timer) (random money-upper-limit))
4 B' n1 d( v& [2 X" A! B3 Z
" D. m5 Z3 t) `$ D. e( O问题的提示如下:4 q9 L9 `1 A' Y" b
( ^& ]- w+ A$ p; I
error while turtle 50 running OF in procedure DO-BUSINESS
- P) r1 \1 q* `  called by procedure GO
/ U3 X; j0 M- U- cOF expected input to be a turtle agentset or turtle but got NOBODY instead.3 M! @" P: x5 E: L$ n& E. J
(halted running of go)
" w# m, G1 p8 S# R$ |2 X2 P3 V! D% y+ |, x
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~~
5 a. d0 V0 B* Q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; `: Q, C9 |4 Q# O2 r! U
globals[' ^4 H9 O5 M& @  n0 [# h# G
xmax( s0 S$ j5 s- S& r4 e
ymax
3 T" w2 m4 \4 D5 k! j: y3 v. p( Pglobal-reputation-list
6 ]' [9 U8 |; `3 v( b* R0 U+ f% z
;;
每一个turtle的全局声誉都存在此LIST
' E* ]) a4 @; i/ \credibility-list& ?$ U9 B0 b) i/ l4 b; t$ E/ E
;;
每一个turtle的评价可信度9 o: Y( n1 B9 X2 k
honest-service, ?- i9 D) T' s  F
unhonest-service2 t& H) c1 x" A: \
oscillation
% C; e# v/ v0 R" |% t" x# zrand-dynamic) V& z* a( a' M& z7 `- `
]' u, D& D1 [8 k* k8 D
# z6 \  j, S0 X5 c' j9 |% F* r
turtles-own[# E8 o; i$ Z: @0 c
trade-record-all" T& {2 L( M* S
;;a list of lists,
trade-record-one组成
( S2 z4 z! J- w, ~% V/ F5 C/ mtrade-record-one
% Q8 r( y* i% ?. V  k" u;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录5 y0 L& T3 l; k( w( @- ^# ?% C
' c) ^- T$ v1 h* D5 }6 e
;;[
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]]
" x$ t3 R$ N- Q$ ~5 F$ ftrade-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], u% A- ~5 u) O* ?
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
- i, _* K  M3 F1 ]; a& t6 Dneighbor-total* T% t. A1 d- r+ t3 f
;;
记录该turtle的邻居节点的数目
( `1 V: k( u" k3 J8 qtrade-time
3 `; [- w# j1 E;;
当前发生交易的turtle的交易时间1 s! \% k' v. [, q, m% s
appraise-give
4 n- K  [' N* U: h* s; W;;
当前发生交易时给出的评价7 l! x7 S" N+ ?$ k; o+ e7 v
appraise-receive* R! x+ `- p: w- g- e6 _  Z
;;
当前发生交易时收到的评价
% E5 q/ \# v2 J9 x# mappraise-time
" ~( m- y% o3 o, X. ~9 x% C- p! Z4 s  O;;
当前发生交易时的评价时间3 k% K  c. a/ e1 }) W9 n7 B4 u% ]
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ e8 S8 v, `9 c$ p5 ^' I+ d
trade-times-total
' M8 L$ O2 V% m4 Z7 Q;;
与当前turtle的交易总次数  u: @5 y" M: \! Y: W1 a
trade-money-total
0 J4 E' d4 y) N  K;;
与当前turtle的交易总金额; a# a& ^. I- H
local-reputation9 y# I' ~$ I+ }8 L( n+ u
global-reputation
% a6 H# P3 R) p' l5 F; i1 _credibility, c. i- w) r6 Y% z7 d0 U! I
;;
评价可信度,每次交易后都需要更新
; J2 o# w4 v% x/ tcredibility-all
) L  W" O! z. z' j; j, Z;;a list of lists,
credibility-one组成。[[1j的评价质量的评价][2j的评价质量的评价]……[ij的评价质量的评价]……],其中一共有people项,根据, K+ K( X- O! Y) m
) B% N/ P5 h) s+ L0 E  v
;;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
0 R& ?* D4 O" W. s9 mcredibility-one' I( o3 {* H7 s1 [, R2 P: t3 s
;;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people7 @2 u8 x  C/ C+ C- f4 h
global-proportion
3 G3 n$ b2 n5 U) Wcustomer
) ~. t  @* i! Ncustomer-no
4 ]  e- {$ z! @7 Itrust-ok3 {' y9 W$ H& D! d6 S
trade-record-one-len;;trade-record-one的长度
0 s$ z: ^& h' ~4 }4 R# G1 Z]! _; \" t5 N0 g' ?: M/ @8 O

  ]* r( A( g1 D" w( X;;setup procedure: J5 N- w" T: D# r- w7 X

0 f! o+ x) a$ W* w1 D, u6 Y; \to setup
& W6 V) @. @. O7 q/ M& U, X4 A" }  d2 F2 w
ca
- _7 o7 e0 M- O, H) s7 Z
' I% Q$ V" S* n$ B2 K0 L
initialize-settings

3 c* a$ q1 g* L# t2 N2 B; l/ V
& j& j1 h, s3 Z$ `$ {% l+ Rcrt people [setup-turtles]

) ]1 r5 v; P  I" I/ Z6 _
$ h6 g' m  s" _reset-timer
  S; g8 R0 w6 B5 m4 R9 u
5 B7 Y; |8 z8 |& W" C
poll-class

* P  v, h2 W% x. |
3 I% y/ ^. Y2 u5 R. ysetup-plots
( C; W$ J; o* y( v1 M
9 w( }- V; D- X5 K- r# Z* v$ P
do-plots
3 e; n- u* d+ g  a, e0 N
end
3 j  S0 ]& z" R/ T7 e) M; x0 E5 M* |1 P) ^/ y! S
to initialize-settings. i; l9 J; v& g# G# r; k
, ^, w" b/ q$ U1 X2 f0 h$ r" H5 q; `8 _7 _
set global-reputation-list []
' O8 v( F8 K/ X( V* m$ b, S, K

$ Y( u' V9 u) l; Uset credibility-list n-values people [0.5]

8 F; h0 K/ J6 i8 ?. \" M8 B& d3 I" t8 v" p9 [' ^
set honest-service 0
9 @8 s/ ?; b9 F0 j% W' W
4 y* k. V: y, z' r& Z
set unhonest-service 0

* |! t9 F- b) a. e; Y
' H, ]9 \0 }4 r* o, m2 ?7 }set oscillation 0

8 Q) J6 G& k$ Y' H( |2 W; o+ W& h/ [0 _" t% i: B
set rand-dynamic 0
4 Z7 J1 u- v1 N- l5 f9 E9 t+ Y
end
& h* q& R0 P; C( C& F/ u* F! \1 G
' w1 T* O1 f) {5 C7 s6 ?" M$ oto setup-turtles * Q5 g- \, K6 @: G3 u; L
set shape "person"$ }1 l8 v" V, E& W- T' z9 Y
setxy random-xcor random-ycor
3 B! `4 s6 r6 n& a) f6 _set trade-record-one []! k9 Q4 \4 C7 B5 ]- c3 i

$ O3 Z, f/ O( V: X2 W& H; lset trade-record-all n-values people [(list (? + 1) 0 0)]
" L7 C7 ?2 u4 E, L9 K

% @7 H( M! G# C( n0 lset trade-record-current []6 ?* ]! b/ ^0 Q$ d! O
set credibility-receive []5 W: [% \  i6 K& a3 P
set local-reputation 0.5  r; z6 p/ L9 Y
set neighbor-total 05 ^" p3 ]# k8 T
set trade-times-total 0
: M. m) a4 }1 \+ \set trade-money-total 0/ t% C6 T% |( V: {& m0 A2 _
set customer nobody
. ?( d9 B2 h; `) X' l0 J7 u4 |set credibility-all n-values people [creat-credibility]/ a; \5 ]; v) L. v( L' P
set credibility n-values people [-1]
9 |6 v# A( r/ D8 O+ Eget-color
) r% B9 w* t" e/ l

) P& Z& ]. ?6 S+ aend
1 Z/ F5 G! u' G2 g" \$ B& }/ I5 [' h# Q( A
to-report creat-credibility
* W' n: E1 A. }" E" ]* Sreport n-values people [0.5]
7 ^9 {# R! `' z$ r( Mend
  `$ g2 Y; C: _$ l. t
. ~( j8 V- ^4 e$ d; x( I& D" @+ f: Sto setup-plots
% U, T  a; G7 g- L9 y0 }% E7 X; {0 S6 G$ d5 {- f2 w
set xmax 30
4 y- q% R* B: s* G! ?# v* C# {5 N

2 P9 D# }; m9 |& s- nset ymax 1.0

, A. k6 h! d- R- h' B  Z
6 \+ r* v  }1 Y2 e! B' pclear-all-plots
0 b8 g. z" i0 D' _6 z: z; O  D
  l7 B9 F8 K( c# v
setup-plot1
9 U1 I8 t' `% N& e+ R

. k, E; G2 z" `* k1 Ksetup-plot2
* W; T7 F5 ^: o  `$ p6 I3 g6 N

" P: O4 `  F7 L- \' z3 csetup-plot3
) x3 S! D% g- V: s5 D" P8 m# D
end& n( O6 s/ U0 B2 O
3 G5 Y, t% I/ E8 @
;;run time procedures
' Q9 g$ P# q5 N% W% p+ t7 e
9 d2 Y( a0 ~9 z( g! g( \; M5 Oto go1 ^6 ?. n( d  o% @
, d  b* q; d3 V3 |$ n  D: w3 w
ask turtles [do-business]

/ c5 _, [7 @3 I. E" E; B1 Dend
8 [7 w* |7 U7 ^2 n8 o/ M* j7 E+ e& j2 w2 a6 b8 R. ~
to do-business + E( M6 t% x; i

. c6 ^. n3 o/ V3 R1 f
9 F4 ?. O6 A/ Z7 N/ C! d% y2 Srt random 360
2 S, L# ^3 O5 n2 m# B0 v. `
5 R; E' J+ Q7 z. L
fd 1

, ]) N! U  }+ S- j7 O/ k' G2 ^# b
' X6 w0 ~9 t. f8 D4 s  k# Mifelse(other turtles-here != nobody)[
" j- ~9 Y2 _7 d
) n* a& I, E9 f7 c$ b) U
set customer one-of other turtles-here
5 ]# B/ R5 S( z2 a% O: ~9 l# g

$ E7 u# x( D1 V;; set [customer] of customer myself
' G0 z3 x' E3 Z1 F5 O

( s$ x& Y( K; p9 sset [trade-record-one] of self item (([who] of customer) - 1)
1 n1 y; j$ z4 \( ?( p. e[trade-record-all]of self3 K8 }3 R) X) O4 R: n6 y, R
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

5 T: L* [2 z. D' f" K2 n7 S: G8 c# l7 N) [2 |3 j
set [trade-record-one] of customer item (([who] of self) - 1)
0 X; K5 M9 `  m  D[trade-record-all]of customer

4 L' }/ ~) [: W% `0 A8 Y! \
6 n" [5 e1 X$ d+ o% g/ s/ Qset [trade-record-one-len] of self length [trade-record-one] of self

/ j- c- C$ @+ w9 u( N6 A- @# w0 ]& B9 A2 e3 K  z& o
set trade-record-current( list (timer) (random money-upper-limit))
; l5 S9 d- d( P  E* i

  d' U+ k, G7 C4 B* s6 J$ J  @ask self [do-trust]/ p% B3 V! l* z  U' n0 E; ?$ h
;;
先求ij的信任度$ a$ \) _! C& [1 ^2 D* w
" x3 S: U# w+ b3 q+ m+ I7 ]6 V
if ([trust-ok] of self)
. E1 d- ]3 O0 m! U' L' |;;
根据ij的信任度来决定是否与j进行交易[
$ k' J1 }% }; ~0 U8 M1 h) @ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself8 O- O& M6 }2 F0 m: s

# |, \2 \  D4 U# I[
+ B6 c( U9 A) F# y

3 `$ g2 J! W5 i) Y! `2 Ydo-trade

: V, T$ k* \  {: H: _8 o
/ F; C; y! U+ J' ^update-credibility-ijl
' K8 G& b, \" O6 M) y: }5 U/ N% h5 b
- `- @$ ]7 j+ I3 M  ]
update-credibility-list1 {) N  \2 n1 C2 ^  C7 P9 @

0 N7 x: X* V- U  e1 l/ O+ [% N" M- I! j8 L: W1 G
update-global-reputation-list
/ ]* I* A5 v* m9 ~3 B' A" A* x% H$ F
) E0 s: p7 _% \$ n5 b
poll-class
: T/ K8 h' \8 g3 Q% j: L
7 y$ l1 T9 O! b: v2 y: w
get-color

7 m$ q5 }2 D! l* s4 t( q# [; ~4 s( z$ o7 J
]]
6 y0 Y7 _  i* I' |* A  L7 Q) a, V' V& K! M8 ^
;;
如果所得的信任度满足条件,则进行交易
8 o+ A* d* K5 n# j6 V! Z% P
: w7 N- k. t5 {2 W- }' x  n# X[

2 O+ V3 t. T0 \
6 T5 ]: S1 t  c" H# `rt random 360
5 D4 S! I" E1 ]0 \

6 A/ h* h1 o& w1 l3 c  k7 b# {, Pfd 1
$ i  I  v3 K2 y
! A( l* O' o0 b# T! C4 ]' ?2 x
]

8 p7 E' c" N% L/ ?" q
% S% w8 v- Z3 t1 ^' A" zend
# c; }8 x# t  l- \2 A

9 @% a( }7 m  w) fto do-trust + B" }0 U% f5 u( J
set trust-ok False
# t3 |& W& K1 _/ W$ L0 X* B1 r
& `4 D' x6 c- T/ h# I6 |4 e

" H) i0 I: n/ L, k7 F+ ]let max-trade-times 0
" Y. u, G! j  C' q' D8 ?2 `foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; Y/ I4 E) s& ~' r6 {, x6 a- ^  H
let max-trade-money 0- x0 s1 J' a4 W) z8 `* m; D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& [# B, m, s4 j; T6 A* Z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- O% t6 ~7 s, w0 S* a

4 k9 N" c( _& l9 D9 K

/ P2 B1 o  q: v3 [% eget-global-proportion" d% E( p( Q4 ~. R" j
let trust-value! R9 w- y4 r0 r5 t* L
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)
4 m' i, T3 M5 T: S" Z7 N0 k- V+ L, @
if(trust-value > trade-trust-value)
- X. C: Q6 ^6 R' X2 g4 ~[set trust-ok true]1 K1 u, V+ m) I; b; h
end' |, }) O$ X& u8 Q5 {" n

. D7 k% f3 A% W  A3 e; k3 [' ?to get-global-proportion
* i! S3 }5 A: F5 D: Y% R2 ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ U( Q7 h8 u, n' |; x
[set global-proportion 0]1 O% B, E) s0 \6 F% l/ u' r6 g$ Q4 {
[let i 0
, `4 M) _6 L/ C4 ]) {6 A0 Dlet sum-money 0+ k1 I* S) B9 q; N3 s" @
while[ i < people]. H5 _/ t+ {7 U6 r
[
% ]0 N8 |2 N( Q7 M4 Z2 ~if( length (item i9 Y7 @  u( Y1 z( n! L0 f+ m( p; V
[trade-record-all] of customer) > 3 )

: d; y" H6 S. `$ U) N! X[! t1 U' ~- S: a: y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ j8 {/ ]& s; K8 G! R  z
]
! {' A) }' ?4 Z) D]& S% }4 h2 p+ [! q5 Y& I' L
let j 0
% n, O7 m8 f  D8 g0 |, O6 klet note 0
, ~" E, \6 g, k7 Kwhile[ j < people]
7 i1 q) U" K9 G( \4 L+ U4 v( E5 C" d[
3 g& Y. q$ b4 s6 Q! Q, oif( length (item i
  k3 M' w& o9 P2 ?' y! d9 }- ~[trade-record-all] of customer) > 3 )

; D* K4 j5 F+ d' ?[
5 y; b" p9 \# \: z$ ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 l* U7 _! N: D1 m
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 z# V6 c* D& G( a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! [) @$ v# |; m) e1 i
]
+ H: c& ]/ k: F* f" C" n2 P( s]
7 }) c. [1 H3 Xset global-proportion note4 u9 U& r" C- |1 M+ G0 t
]
6 L5 @- O* U3 Qend( |+ {, N* y8 Z$ L5 h( a
9 m7 P1 f4 R+ r% C# C; Q, e9 k
to do-trade5 X* r# o; h. e" F+ f) `
;;
这个过程实际上是给双方作出评价的过程# q) F4 F7 ~7 d$ ~9 g
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价  p! _; ]+ i1 t) S5 ]# o
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价, M* V! b% D) B0 T0 o+ S
set trade-record-current lput(timer) trade-record-current
- F# d6 p8 J6 M0 `+ W;;
评价时间
; H2 W0 ^+ O- c" y! ~( o) E7 cask myself [; Q9 F. V! Y  r; x+ E
update-local-reputation
0 p4 ^* B% ^9 |6 I7 lset trade-record-current lput([local-reputation] of myself) trade-record-current+ o8 k8 p2 A1 r' M5 M( y
]" n4 s5 [8 a- s  \; @
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ T4 x5 G% c5 ]3 `
;;
将此次交易的记录加入到trade-record-one
0 v* D8 c# o6 R' R& P( Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) a$ J" B: P: n9 ?+ e& o7 y# b2 B0 h3 a
let note (item 2 trade-record-current )
% o9 S7 L; E+ I6 i1 X0 B: i( dset trade-record-current: W# E- H% w; E2 t
(replace-item 2 trade-record-current (item 3 trade-record-current))
) H) G' ], @6 e3 H) j
set trade-record-current
/ ~8 t, B7 j1 K(replace-item 3 trade-record-current note)
. u: Q: C. M& [1 J$ l' n
1 ]) t+ H% s! a5 ~
& M5 L1 O+ H/ V  n
ask customer [
% r, q( L6 u$ @1 n+ N# Y4 M# f3 K7 Vupdate-local-reputation
% v+ H5 L( ~4 V4 k/ ]set trade-record-current/ Z; S  n$ a( c+ Z: @* m
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

, f  I8 I3 n& x- k2 C: U]
5 D0 Q9 n( M% g* ~+ a6 p
4 g7 g1 j2 ~1 ]3 j1 {* r6 d
% G; m$ n8 d7 A+ k+ b" r
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' D9 v4 O1 g+ X: Z! u2 E7 X2 U4 `

  D0 v7 Y! {* ~6 _( {' dset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 T* e" Y1 k0 J+ @' z  x
;;
将此次交易的记录加入到customertrade-record-all
7 z1 [. F- f9 {0 T2 c* u7 uend
; M9 o8 o$ V0 L3 w) h" H5 y+ X# h3 [' `9 B
to update-local-reputation
- s2 p3 q; Y# bset [trade-record-one-len] of myself length [trade-record-one] of myself
. s: Y4 T- m4 x: f1 w7 d: U, s! C; K5 O% `0 ]( S) k; t$ N

0 o  M$ z( W5 ?: o* z) y# X;;if [trade-record-one-len] of myself > 3
* r8 p. t$ X: k7 O7 c
update-neighbor-total! k! l2 A/ U0 }: c) U+ o
;;
更新邻居节点的数目,在此进行1 J6 R6 S4 C2 j7 i! n0 W0 U
let i 3
7 Y- ]% w  b/ |) ^6 m) ulet sum-time 01 r+ t; i8 o! Q+ B
while[i < [trade-record-one-len] of myself]/ [$ |; ?  j5 R) R3 l8 ?  r8 T+ K
[- f, V- @8 S) w$ `$ R
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 x: g& t7 d0 J/ F. g7 J
set i
  i- M. g% {! l( v( i + 1)

) O5 \+ h& G: V; v4 }# i+ @]
( ]8 J  z/ |3 x. I4 alet j 38 U0 X- Y9 P% p3 Y/ u/ q
let sum-money 0
' K8 p2 j5 f4 H# S3 Iwhile[j < [trade-record-one-len] of myself]
% ]6 ~0 T% Z/ W  _[
/ D" r/ O$ d. M3 H* C3 Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ @" j" [0 _7 }) {9 f8 h1 Lset j
& U, Z2 W7 b$ |, v. M( v5 f( u3 w3 t( j + 1)

0 l( {  U) m' Q4 l]
4 O$ I, ^* l/ k6 W7 ]let k 3) i( b& ^* w% A# a
let power 0
5 k6 ^2 h! f2 Ylet local 05 [7 R( Y  `$ ^8 c5 P" e8 E, Y- |" u
while [k <[trade-record-one-len] of myself]0 Y/ e- y. c/ U2 }* P
[+ y+ ~7 K3 d  E& c; y+ B" @% 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) : H" m  b6 x: T1 _7 K
set k (k + 1)- C: x, t9 `( i, Q: F' D  Q4 p
]
0 m- C+ z0 B& N4 I! E" e, @" _5 P# xset [local-reputation] of myself (local)* ^* `, Y) Q( i  y6 B
end4 \# ~4 L) ^! l% r( |& h4 i5 p
# h, f/ O  t7 x$ d% `3 R# r
to update-neighbor-total9 Q! D2 D* }3 |% v4 P% o! m
" d0 j* |* m. Z+ R9 K2 p, g4 A
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ ?% C; i0 V  j+ H: ~7 \8 u, t, G9 [
+ V* u& p- M' n/ p: v: L

) Y% p/ g$ z+ U0 A# F, g$ mend5 F" C  G$ V. k8 a/ J

1 {9 W$ F( _+ b" o" _  Sto update-credibility-ijl ( N3 j% O% @4 N3 l' m- l
2 j4 D3 [- Z. U
;;
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。$ V5 L# V7 G! [, T$ s* f: R
let l 0! {3 M2 `1 T4 n  y  D* A# \! x2 N
while[ l < people ]. t1 @; M" T$ w3 ^
;;
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6 X0 i- ~5 L, L$ g( J( A
[
5 ^9 j% f" i# H3 l7 slet trade-record-one-j-l-len length item l ([trade-record-all] of customer): C4 i- P& M9 k. `+ Y1 @0 D  {
if (trade-record-one-j-l-len > 3): O2 q" e* q" W# f
[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-one3 \: {1 \8 V; u( e4 p* T$ ~
let i 3
$ J8 b, c4 A, blet sum-time 05 R/ d' z# N) w1 r" u; {) Y$ C
while[i < trade-record-one-len]
1 c3 c' B$ _: q: ]; R! z' R[
0 I3 U/ E( c; \6 y7 C. o6 q6 a# kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 `' X2 ~' U- pset i3 k( i- g& c4 \, ~/ C( T! Z  X
( i + 1)

& C: J& n% I/ F1 R$ Z; S0 Y+ Q2 l]0 i4 Y9 I& N; `: O  b# f# _7 F
let credibility-i-j-l 0
8 \/ |9 r7 q$ i, r, B;;i
评价(jjl的评价)/ E  `. L  G8 C0 r8 N& T
let j 37 h$ C+ U9 p. x  r- r. {/ s& |
let k 4. Y; ^- F/ W7 C* U
while[j < trade-record-one-len]0 g* m' e6 K2 U  W4 z! N9 y
[, z# T# D8 {4 d4 m1 x
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" ~" h7 E7 H7 y- @2 {! @
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). l2 S$ V- ~6 E7 c7 g# I: M+ A" E
set j
5 g+ f  H1 A" z) N8 ?( j + 1)
  x' B0 h* j  e  T5 n# X, D7 i, A  ^
]
, L8 y% a3 [$ ~# 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 ))
5 q) ?$ w2 b( n, @, c7 E
. h% a  _" d: q2 W$ M
* [& ]4 C( c( c, p# i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) V; Q' `' k: {1 P+ _9 P
;;
及时更新il的评价质量的评价
' u: h8 N( J/ Y3 c& v# O8 |$ h9 dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; H# y. a0 X0 b% u
set l (l + 1)
& E# t# a. ^$ @]
3 X( s/ O% l# r3 e0 |8 j  P8 Wend
$ V' b; i! ~9 V* ]- v% X; Z! K0 O9 I' `
to update-credibility-list- n, F0 q- `6 h) ?
let i 0# _& j# X) p: a6 N/ k8 F: i% g
while[i < people]
* c9 l: Q3 ]6 k3 V: C9 d. d[+ [' [% Q: N1 c9 C* O
let j 0
+ v2 L; `- z+ Z8 jlet note 0
: n- i5 @) ~, Q1 S- {' [, xlet k 0
0 H# o5 m* a" q: V2 E( E' S6 ?8 D! @;;
计作出过评价的邻居节点的数目7 t) M' q) |1 t$ b+ B) v
while[j < people]
: t- ~6 Y$ y( z# w[
* g. C, v/ o  d8 @  t& vif (item j( [credibility] of turtle (i + 1)) != -1). c# {, o% \2 J+ f
;;
判断是否给本turtle的评价质量做出过评价的节点
7 r2 h# G, F# K! x$ N7 [$ \[set note (note + item j ([credibility]of turtle (i + 1)))
# F9 O1 g& o* e1 T! {;;*(exp (-(people - 2)))/(people - 2))]
- k) @" B! U& `5 _
set k (k + 1)
4 x/ c: r# }' V]" N- I7 ^+ B" g& Z& a1 r
set j (j + 1)
" a/ \( E6 Y# Q7 e, T( t8 N3 u]
2 x7 D* F3 o( p5 `0 I/ @set note (note *(exp (- (1 / k)))/ k)+ S. i+ r2 |- [$ ?2 s7 F$ ]$ U
set credibility-list (replace-item i credibility-list note)* P# Y2 j4 |* P5 Z
set i (i + 1)" \* [, F6 X$ T; X  p1 E& Z. |: F) B
]
) z7 J8 Q1 d4 M2 S7 Q1 f, ?6 wend
, l3 l. g5 d9 }+ w
  H% |' j6 e' ?/ E8 Y6 s( rto update-global-reputation-list
2 ?, a* H9 z$ w9 J  elet j 0
2 {; M7 T1 V. N2 |1 S- i" M# _while[j < people]; j3 P0 n( V* k/ p; M1 D
[+ Q3 {$ m! p3 r
let new 0
. b9 [; J) U4 U$ K;;
暂存新的一个全局声誉& m9 M/ }; @; c- h
let i 0# }+ B8 V% d% w& i4 d
let sum-money 05 U+ r3 F! f6 b* W5 |
let credibility-money 0$ V. j) j( \6 y6 ?' ]1 p$ H
while [i < people]
/ Z3 {% P( f- {1 s6 |[
- X. j1 B: _7 [& w3 @2 mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 ]4 w- ]# i0 [0 @. ?/ y; {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% f; z5 \; L3 g0 a) Gset i (i + 1)
# K! D  A  }* a2 F, c/ f+ x]
0 u6 w5 A  S  @6 ~let k 0: U, `) b- ]3 B. x
let new1 0
5 t2 u5 Y1 S) Z4 G8 |while [k < people]
$ ^5 V2 q5 u* ~6 f[
$ y+ A, }% ~- a; Yset 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)
2 b: Q, O: M% p6 Iset k (k + 1)
0 |# w2 \9 o" \]
7 P2 F: ~% }& Gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ [2 y' H8 F! t( `" Fset global-reputation-list (replace-item j global-reputation-list new)% U& X. C7 g8 g) ?+ g, U- P& e
set j (j + 1)
) [. ~% W) x( Q, o/ d. b]
* C6 ~) V8 z/ I2 \( Y: t, L$ ^* ]end
1 E$ S& S  g; J% R: Z8 D* @$ h3 T7 [0 J- U$ B8 H2 F0 `6 v8 k7 r
$ P7 s- s. n; t, m) d7 g6 Y
# H. i7 Y2 w0 ]6 G6 W
to get-color
# W, C7 Z' g7 b. r1 p" V" J% j& l, K1 Z! k5 l5 H
set color blue

9 w! b7 ^$ D" k3 t/ eend
1 q0 `/ M! {8 L& ~! H$ O  N6 [/ O% q) I) I& m
to poll-class
1 Q( Z, z3 {6 x2 Eend" B0 f' }. s9 V, u% w9 Q- s" |
, ?1 ]/ T' b; m, y: Z
to setup-plot1
# d& e6 x- r* K4 O6 q- e. _. O. [8 I7 \( c! c
set-current-plot "Trends-of-Local-reputation"
5 t8 I, l8 C- y7 {6 [' _
2 o' z: G/ `) ~0 `  O; q
set-plot-x-range 0 xmax
5 K: ?5 e" @" W) A1 b( s! @' R: _

! v! S' x) _* Z# W9 Hset-plot-y-range 0.0 ymax
! C, F0 S1 \' K  g3 u
end, J- \: i* M! O% u4 s
7 x, h# ]; q% V. Z! ~0 L
to setup-plot2
. z; z) M. C5 i* B4 L/ ]& C
! x+ v* M% m( r6 d2 }set-current-plot "Trends-of-global-reputation"
& s, t/ ?: f7 b, ]

  v0 K3 f' k- Z) }% Lset-plot-x-range 0 xmax
, o. `8 l2 s0 Y4 _+ m
, T  b) M# b0 |/ a5 ^' }
set-plot-y-range 0.0 ymax
" ]3 n+ @4 D( @6 F2 B8 Q8 h$ Z) |+ z
end, U0 q, u7 G. j- R

) k$ N# S! b6 J2 Eto setup-plot3
9 C! b6 k- j. \) q2 U0 Q
! I: t2 J6 a' G- Bset-current-plot "Trends-of-credibility"
( U. c# X" e6 n% D, I* Q% R' `& T
% z7 i) L  g+ u" E0 p$ Q) `
set-plot-x-range 0 xmax

  E3 z; F8 J& T! s/ S2 f2 P# L/ O4 e5 h
set-plot-y-range 0.0 ymax
, I7 l: s( S+ `8 Z
end2 M. C' F2 t. r  K# e9 k

% X$ R+ h/ G9 h0 eto do-plots$ C7 N- K4 M" M2 z" h6 h) [
set-current-plot "Trends-of-Local-reputation"
) x5 U. r; k- _  f+ t7 Xset-current-plot-pen "Honest service"
8 v" R. m; a9 s( M" Iend
7 @4 J. S* F( ]9 u3 D" [
  y& q; v) Y3 x% R# ^[ 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.
, E9 f, H, R- l  I" z. t- i& F2 j
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 14:21 , Processed in 0.019586 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