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: 10412|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:+ U( U% i0 M/ k7 k; e
to do-business
+ s0 `" ]$ s6 p9 n rt random 3607 [1 d( |; e) `0 {' I
fd 1
3 @0 W9 f+ S6 l' Y- h ifelse(other turtles-here != nobody)[9 j# G5 t0 I" m/ f9 m# I
   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.
9 P' p% C" P+ W) T& T* P   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    " n9 ~) t* T6 b- V3 {9 p& R
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer$ f" ]# f9 K, [
   set [trade-record-one-len] of self length [trade-record-one] of self2 b8 g) V4 l, H
   set trade-record-current( list (timer) (random money-upper-limit))6 a7 j5 s. ]) @8 s

& x% s0 v" ^" v' a+ w问题的提示如下:% x1 j$ h. k& ^% |2 K0 ^

: }3 e/ M9 k5 Derror while turtle 50 running OF in procedure DO-BUSINESS; c+ N7 {+ w" m/ U
  called by procedure GO3 Z7 K; q3 W2 \2 G: O' Z7 N, |
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
$ L0 {; ], ^& U0 r; I8 M
(halted running of go)
4 K; q8 R. g' r8 X5 B+ w0 d: R* ]6 \6 K' U+ r2 s
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~~
, Z" M3 Q$ a- }* v8 i& m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; O- s6 r% R7 @% @
globals[: u4 Y! k, Y" g0 M
xmax+ s- Q, @# B5 v/ b
ymax
5 n7 n' F; k4 h, S9 X+ Y# Rglobal-reputation-list
3 C# L2 s0 g+ H* O# Q; c* R( c
# k# Y% C( A/ L9 |3 p;;
每一个turtle的全局声誉都存在此LIST
7 V8 F9 C6 O. |* h2 L0 L1 ~credibility-list8 S  }, y: Y2 w: O
;;
每一个turtle的评价可信度
. e6 D, [- U1 |6 T6 H: ~4 khonest-service
0 M: u, U& K1 P% m7 d3 Nunhonest-service
3 ?' ^9 C. @/ T" K6 T  x3 G' [: U" Qoscillation0 `' X. E& B) q
rand-dynamic
- D7 l0 s2 s* c+ Q7 Y]% N) j2 ^, u( c4 ~" Z" G; _
6 z2 \3 K1 ?6 L! N) l4 G
turtles-own[: L9 M' l5 A* \: z. N3 ]* y; L
trade-record-all0 V4 O' z7 G! B3 H
;;a list of lists,
trade-record-one组成
4 F1 R; _, A; {) ltrade-record-one
. M$ w5 ~/ `* m0 r$ q/ S;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录4 p  r& d' o+ O: G0 K- A

" b- F" ~4 g  K6 _3 M8 ?;;[
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]]
/ ?( j& A6 H. ytrade-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]
7 X! e- H9 T+ }/ {. |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
! ^, H3 v0 `* b1 R( R# I2 tneighbor-total$ c$ q, `9 D3 B4 b
;;
记录该turtle的邻居节点的数目
; z4 X/ X6 X, o5 g2 ctrade-time" ~$ C5 ~: q5 k4 D/ ^
;;
当前发生交易的turtle的交易时间
1 E- h5 z5 R! h- `4 q! M  Xappraise-give7 Y( Q: S) c% ?
;;
当前发生交易时给出的评价
: T! j2 r  s: e; ]. M3 @) cappraise-receive5 R$ N/ g  b9 R( s
;;
当前发生交易时收到的评价
+ d* g5 d) k+ Zappraise-time% `, I8 {! }: N# C* d
;;
当前发生交易时的评价时间" ^! ~" b' ^; @( P9 p. I5 z3 ?2 `
local-reputation-now;;此次交易后相对于对方turtle的局部声誉% r% W' ?* i  j6 q
trade-times-total3 v0 f1 V% K  F; D2 X
;;
与当前turtle的交易总次数
6 k: P/ I1 L; J& s' `2 n! Ftrade-money-total' ]# `; `& Q( T' M' [/ Z8 S7 v6 B
;;
与当前turtle的交易总金额
; z- g9 T% ~) W# O9 ?/ z4 K5 c+ ~local-reputation5 x( Z0 w# g  Q7 l$ H! t5 k, ?
global-reputation
3 H7 c& I3 {" C% p: ^( zcredibility
0 K3 b* ]3 r1 m8 K; W;;
评价可信度,每次交易后都需要更新$ k2 E5 }* w$ X# h8 z. _, `
credibility-all
  r) K/ ~/ K$ s: D2 A: M, ^;;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& I' V- ^) F5 X: l8 [1 I4 q, y

( `, ?5 ~2 V4 B/ U;;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/ h" p  ~% ]  E$ U7 x
credibility-one3 ^7 P$ j1 h- l# y0 V5 Y
;;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people5 o7 {# q5 T, ^! G2 s
global-proportion
$ M2 F4 t7 R) S9 J  @. \9 L" K9 B7 [customer1 \+ ?6 A# @. d& N
customer-no
0 b; _' Y1 a% ~' {6 ]0 @$ ptrust-ok* i+ Y) D: J, H% t' e9 b9 w4 p7 ]
trade-record-one-len;;trade-record-one的长度
4 {/ s7 |/ b1 g! ~/ J]
: ?0 c1 Q. O+ i, z
6 k+ v. F3 W/ S5 j* p# R;;setup procedure
9 F( ?+ q0 o) W, C" m; A1 H0 L
' C! b$ s1 L/ d1 y9 w0 q/ B/ dto setup
! h# E% u; i2 n1 t
$ M  ~7 w( }- l0 K/ n- a$ Gca

0 T2 T0 d: \; q
8 T, N9 t/ Y; g' L6 n3 h$ jinitialize-settings
3 D% R4 M: }, J- N7 E9 b! C
! D$ W" J$ {( ]0 |, s1 U
crt people [setup-turtles]
! h6 G( R6 N4 U+ q
1 z* T+ ~' l+ R7 L  k+ K
reset-timer

) \, H: B5 K7 [- |2 T: t2 [
9 Z5 \/ X1 Q( V6 gpoll-class

) J4 x5 [7 N- x6 a, d$ W
- d9 U! e, M. F+ z$ m9 n$ p/ G1 Lsetup-plots
% Q/ a! Q9 M8 O, ^  z8 ?2 P

9 Y- O) ^& ^0 T" k! bdo-plots
, G! @" t8 K5 i  ~
end6 _' }" I2 Q; _( ^8 K4 \9 W
# L; s5 p8 I6 H5 z9 u
to initialize-settings* O( e  s3 B5 X; j0 o# N1 r; P
  `- b: i0 L$ x4 q
set global-reputation-list []
5 h, P/ d! R' ]* M0 Y" p( |

" B6 z7 Z' q" I& L  F/ t* m4 j$ L* Gset credibility-list n-values people [0.5]
1 a: W4 |+ V+ V! D9 P" Y3 b

% {  J3 a1 D' w0 j( G8 ^2 g! {0 jset honest-service 0

6 B. N+ j7 |5 I0 d: I
- P. |& Q' c7 R4 |/ t! ]' pset unhonest-service 0

! x* ]9 u$ t% ~# N+ }7 C' k6 A+ |" i' b9 C
set oscillation 0
7 i6 r* J* i+ A! `- Q( J) @) ^
3 c. i- i$ ^0 F" M
set rand-dynamic 0
, U, |4 c& A, K
end
: n9 p8 y. P2 i" s7 n
1 k& t( J* A$ j" f: H% yto setup-turtles 1 B6 X) W) _4 J8 \- g- `
set shape "person"2 p7 r6 }9 Y3 d) M
setxy random-xcor random-ycor7 \( J8 D+ k+ ?2 s" h3 A
set trade-record-one []/ ?# U6 K  z$ n# I( k" [) ]
5 @! S9 I$ ]6 E9 a  A
set trade-record-all n-values people [(list (? + 1) 0 0)] / y3 a0 n) i8 B3 a* t

5 z/ R7 F- j& Pset trade-record-current []) I5 Y: P) ~5 h( d) G# h+ J
set credibility-receive []
2 |3 w1 }1 h5 Z6 ^) Eset local-reputation 0.5
( H; h; B. p* }- O: W% \9 Mset neighbor-total 0
; ?6 e- f$ q3 w& W% Jset trade-times-total 0' |! M% _, }( R4 Z. x8 g
set trade-money-total 0
3 K6 g5 D: \9 X$ Zset customer nobody, U% Y* E, H1 {1 t# o
set credibility-all n-values people [creat-credibility]
) R3 {+ k% `8 wset credibility n-values people [-1]
: z6 O" [, m8 G4 Mget-color
% O5 B2 O/ n) s+ H) V: _' Z0 V
6 l/ w/ ~: q& d0 H/ k" K
end( t3 M  j) y. ~) F* u0 X

+ Y- s5 h# H  c% k2 ~4 Qto-report creat-credibility
+ G2 u+ |+ A0 g, p$ Greport n-values people [0.5], W: k' P; l0 @2 z! g! |' Y
end
3 A0 T+ I, S# f7 J
- n) j1 [( X4 ?$ pto setup-plots+ a  `: t2 k7 z  n6 _

6 v- e7 n. p* i+ Z7 A4 ?, uset xmax 30
) h! i# b) P, ^5 H/ e3 E+ o

" L0 a: b" g  l% Z4 Y% vset ymax 1.0
; _* U* A$ s6 L. l; h7 ?

1 i1 n% `6 T: X2 Z& Rclear-all-plots
+ g0 M1 q! M/ E) g4 \0 x& N" `
8 L2 B3 `% @8 T# I" i) p+ u
setup-plot1

$ b( j. F* f) u& C
0 H9 e, m" b9 a6 n& \8 R) P5 r, nsetup-plot2

3 \# F$ B# \1 _- ^0 ~( ^
, |) ^' i3 }3 g6 N  Fsetup-plot3

  k9 J$ c0 t/ E* Xend0 {' X, u4 X- P, X' @; j2 o
3 o$ I" m8 {7 s- h
;;run time procedures" D+ @9 F/ {' {1 C
) i7 ~2 N' w" B) ^8 h+ ^
to go6 G5 t! ?0 v+ v# `

4 _1 k' O! A; iask turtles [do-business]
( c* N# `4 q, r/ r# z& h; O
end
+ N; G0 q$ v$ Z6 z& \! F! a- n! t; g
to do-business 8 V0 W/ X7 Z+ x
/ ^2 C3 I! \+ L' w

4 Y- V  m# ^5 s& q6 A- qrt random 360

' q' H0 E: h# ]; _3 F  u
  C# H2 j" s5 D3 bfd 1
+ u/ S1 f7 Y9 [) `

) v7 j  Q1 z/ ^, |& k- v7 e" ^ifelse(other turtles-here != nobody)[
5 d! D7 _7 Z7 x6 C0 L
/ i  o5 }8 Q2 L1 y$ a
set customer one-of other turtles-here

& V. C- I; B( E8 c8 w7 {; k) T: X2 q+ R. U
;; set [customer] of customer myself

) Q& I0 X# ?& e1 L" ?+ V5 B3 K
9 s. ]( `+ s2 S, dset [trade-record-one] of self item (([who] of customer) - 1)4 c# m: }  M% v0 i2 P1 J3 Q' v1 v
[trade-record-all]of self7 \8 W$ }- O0 c
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

: n9 w# N* l( F! S0 Q" v/ g! l+ W# i* h% }3 V* T! z, u
set [trade-record-one] of customer item (([who] of self) - 1)% n8 R; H6 e' j3 N
[trade-record-all]of customer
5 V/ @2 i) m- k  ^6 z1 S: p# m# @- I

  v; Q$ _' N6 \  g6 iset [trade-record-one-len] of self length [trade-record-one] of self
$ H, ?+ X2 f' N' A* ~9 c& B

0 m1 f  J$ s5 ]2 A* m! p' W/ [set trade-record-current( list (timer) (random money-upper-limit))

7 k2 C; F" G: T' Q7 Y, Q% V( P7 E" J% N& ^2 X# a, C
ask self [do-trust]& S7 a: m  d( @# G/ E  D
;;
先求ij的信任度
  l" I+ y2 J4 f0 g% w
/ `2 @3 \3 Z+ }8 f  eif ([trust-ok] of self)
8 H4 X; G" g; t/ C9 Y& @/ Z;;
根据ij的信任度来决定是否与j进行交易[
3 j, T% ~8 s6 Q" f$ w% eask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself- [9 A) ^; E1 O: [

7 g  ~( s+ N: a# o[
% I: S( C: l+ P5 U
' _4 U! q5 c( {: a
do-trade
% ^; N* X/ U( Z

: [  y& s  ~# cupdate-credibility-ijl
1 q) ~% a7 r2 |, x& K/ d
9 k3 z$ d, ~- l. ?7 P5 x
update-credibility-list
+ A. B. P8 h  z$ a- ~
  K" `5 W5 p& j' Y1 t* x
# y+ _0 o/ B8 h3 b0 k+ b1 \
update-global-reputation-list
  w- i+ [% \& K( p2 O6 H

# |2 m, u4 ]1 ^4 w; B0 k- _poll-class
) c* r; G. R  v8 ^, b. r% ~7 _

. u: t' G1 D) Q% i8 Zget-color

  F/ V3 w/ z  D, ~* V. `) H+ d8 _) S! h& B3 V
]]
1 p/ [& i) s( G& U. y( t' |0 v+ I" s: J$ w# s; W
;;
如果所得的信任度满足条件,则进行交易
, t/ f6 f/ q3 ?* c) B5 F5 E
, f9 K& q; C( T$ U# x8 E/ }- G[

7 {! ?( {$ w/ t5 _7 d( _* j. |5 ]; |! X( ^' P
rt random 360

8 ?7 V# R' T" x7 q7 K" j
: g0 s& J" d: D" J5 h) q/ {fd 1

$ k5 D8 {2 @! j: Y- l
! K6 x7 }. g. P. B- C; W: e]

9 F' g5 I0 e( s/ Z, D0 R+ b! [! l3 i; R6 T6 S+ g9 d% S2 Q
end
- U5 U( C8 f9 n$ p' }3 r/ e: K

: G3 Y5 k( X5 z* Rto do-trust
  A" {  q. T, t9 p( Z" }4 pset trust-ok False& f1 k; h7 q  |# h3 s

1 u) T  m4 H3 C) _9 C  b, v$ M

: G* O# J, Y9 X9 }1 g$ g) [let max-trade-times 0. \. y7 |% J& q+ C% t2 V4 Z; Z9 C
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 F5 X% r# n9 m! @# I4 f
let max-trade-money 0. G9 _! a  p& m. w4 z6 z6 E, J# X
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, I& _) ^5 K8 o5 I- M: S6 Llet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# y1 q# S. [; Y9 i  U4 h: o
  B9 z! Q$ X$ h0 L
! H* m* a/ v; g. k( r" C0 ^
get-global-proportion% P) e& A, |& r! @: v( E- N# T
let trust-value
( o: V5 {* c9 o% \7 {0 |0 Ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

# K9 c$ y% q% t$ zif(trust-value > trade-trust-value)
+ O# A: f6 ?: [/ b* i3 I0 K[set trust-ok true]
! a! m8 b$ b7 [- u; Oend; ~: Q8 x0 B- ]8 |
4 Z% o- h8 c$ a: b: Y7 N/ R
to get-global-proportion
* R  A/ u/ `* H! B7 Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' F/ W# L6 I9 |. ~- ]1 a' }[set global-proportion 0]5 i. p8 k% u5 K2 V7 s* W
[let i 0* P/ A( e7 u$ P* i
let sum-money 0
  D# O. r! f# q/ l# r% Q( d9 \while[ i < people]( q1 G# e. `2 m' F
[
' J# a( R2 N# G4 ?  ?if( length (item i" f' v$ F% i6 V7 e4 h/ w; \4 k
[trade-record-all] of customer) > 3 )

0 ^; P  f& x3 H0 M[
/ {$ ^& ]! s: f- Pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 a  B9 Q) p* Y
]8 V3 }. }8 h  {0 {; [
]
: J7 f3 {! M$ L1 B/ G; K) }7 Clet j 06 j- J1 Z2 L- d0 L0 S, @
let note 0
+ |( t# k% p* j: u3 X6 _while[ j < people]
0 F% D6 y  C8 F  M6 G! e[8 j/ x7 R2 J" c% e- T
if( length (item i
: W7 E  F& A% t8 i& V& V+ D+ f' E[trade-record-all] of customer) > 3 )
/ s8 R  ~+ P* B6 m# j
[
9 }" {# v6 l1 s" \+ \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& E4 h8 y7 k  c' f* w) r[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! L+ e, u2 u0 w. R
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
  I& E& E$ L4 P# N3 Y+ b& o]$ b8 g$ C6 C* k1 p* t' E
]4 Y: p9 S; O9 C' X; R3 _. y; Y
set global-proportion note  W- w! }9 c( C  k) y4 Q; A
]" l! M: J# H- ~; b
end2 a% ?( \+ e: K7 G# S

* A) Y- s, c5 O- [# fto do-trade
) Z7 F( l4 x7 W: t;;
这个过程实际上是给双方作出评价的过程
( s. K+ A) x% ~; C  rset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价( B7 g9 j# @( P
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
, h# Z- p5 R! V$ M* @: x! @9 a0 aset trade-record-current lput(timer) trade-record-current( G5 @+ I( o/ H& V/ c
;;
评价时间6 G6 g8 ]6 |$ P4 A( a6 _; X
ask myself [8 M5 m4 \8 K0 X0 M' Q, `
update-local-reputation' W& V7 G1 g% _; m8 M( ?7 B
set trade-record-current lput([local-reputation] of myself) trade-record-current
9 D9 ~/ a/ W2 k$ q% s/ A4 x]" u2 c% o: N5 M
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- p# d) k" m* r, T( K/ Y* z2 [5 r;;
将此次交易的记录加入到trade-record-one" R0 T" I4 C$ O, M' S; d3 n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 r- Y9 s) F3 ]- c- [8 t" klet note (item 2 trade-record-current ); _$ g: A# d" k. j( Z
set trade-record-current
3 D( w+ b# s# N4 K8 j( T(replace-item 2 trade-record-current (item 3 trade-record-current))
3 s+ J/ q4 z; H/ S1 F- t
set trade-record-current
. _5 V: a$ I8 i0 @4 T* j: w; ?8 |! \9 i(replace-item 3 trade-record-current note)9 \& Z! \+ h4 ^# N+ S4 ^
& B7 h& v& U4 L; W

  D/ F1 a; D) n/ wask customer [* O: m' N/ a" ~7 D. n4 ~9 R
update-local-reputation
; k; {5 \+ O/ [- _0 }+ P+ W% jset trade-record-current
% P; V! t6 K; Z+ Y& |0 j+ W1 y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 P; x8 f# d) |* B0 o
]3 I: m* \& n  H
8 k* l3 F( I9 q2 T4 v: u4 i. S
0 p( z" ?, I. j% F: w: {- G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 v5 t  h+ E3 z& Q1 e+ T$ x5 h
" m8 P( i* I& I* S8 V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) W& b: _" {( @: R" F" q;;
将此次交易的记录加入到customertrade-record-all, i8 y- e: S5 U8 K3 }- n) a
end& T, \& p+ C5 w5 Q; Z* R# c) `

  x% L* s2 R: _" I+ b2 H9 n( L. Gto update-local-reputation
( h# ~9 A' T: {7 L0 ~set [trade-record-one-len] of myself length [trade-record-one] of myself
% p/ ?9 b  D8 l- K* `
% _; c, y9 M) Q- X$ r, B1 q9 J$ p0 W5 ^8 f6 A
;;if [trade-record-one-len] of myself > 3
) p) J, \$ o% \. e6 A) h
update-neighbor-total
4 C- D" P+ x  \& M4 M;;
更新邻居节点的数目,在此进行. m& P5 r- g4 N- L
let i 31 c9 a# z, v' [8 w3 k% ~8 e
let sum-time 0
( `  e2 I$ y# F' h2 V) l' ]  ewhile[i < [trade-record-one-len] of myself]
# w1 f" N# t+ z( M% k[
& K2 U6 n: K( P: W/ sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 u* F. t* z, f* K! c/ pset i8 k4 ?* ?1 l/ I. s$ a# q9 V
( i + 1)
' ~" |5 g7 y; J, N# ^0 D8 E
]  s- \. C+ x" k/ X
let j 3
5 E6 w' ^6 N8 \" }* |* X6 u3 plet sum-money 0
' J4 X: E) k! _. m5 f  Xwhile[j < [trade-record-one-len] of myself]; F" Q, y/ ?% _5 n6 k9 O9 ?& u
[
1 W/ ^# F1 C6 I* ^4 W1 U3 ~5 v/ mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ E2 i: M$ p; Y% ~4 E5 Pset j' J4 g; m8 y* Q0 _/ S2 B
( j + 1)
! W1 ?$ E$ X# x3 {  @# ~7 \
]
+ d$ k% \; ~& D5 L$ m: @5 k& W( alet k 30 f$ M: e+ j. u7 ^& m! h( i5 p
let power 05 R5 \, ]1 _, j, D% G4 T5 l
let local 0
' O3 z8 k' U0 s" bwhile [k <[trade-record-one-len] of myself]
. x/ r: b, F, [8 K[
2 }* v9 M0 Q6 ]+ _$ E' ?8 g$ K4 Iset 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 Q' \1 X; f) u: [
set k (k + 1)
  C4 t7 i; r" `' J8 `# f- `]
1 ~& w3 t# {0 V: Y: l8 Sset [local-reputation] of myself (local)' @$ z$ M1 h& u( O9 K1 d1 }
end
. u3 g/ V* L7 G( W
$ W  C/ P  D0 Hto update-neighbor-total5 u/ f) k' d# U1 i2 ]! F% ]

1 U. r2 B4 X4 Z! Xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# }# e( U9 x9 h) C

) Z" t% s4 R0 [6 R% g$ Y" b2 q

5 O- Y0 L1 ]( pend
$ d# m; }0 @& ?
/ c) {2 u9 {9 Mto update-credibility-ijl ; j  j4 M; |2 I% _
- T! B* ?0 l' w
;;
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。. e2 e0 y0 O# k/ c5 c% e1 A7 C" q
let l 0$ ]8 ~3 C. V/ C+ X1 y
while[ l < people ]
1 Q; j7 N! K# Y2 p  e;;
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
% V6 @/ d8 Z& h) O[
+ S$ m8 J) m' e, j& m! r- Llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)' \6 ^; S' m9 v; w
if (trade-record-one-j-l-len > 3)- _; n9 l6 ^4 c1 r% J
[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-one0 X+ P; F- L9 }, e8 m
let i 3: X$ C$ }/ ]1 Q9 [- b" U& r: n9 {
let sum-time 06 S; `, {1 D8 j3 ^  ~
while[i < trade-record-one-len]7 G4 C% I# E3 n5 C% v$ O
[$ e+ z) Z1 Z  V7 h
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& F7 V2 N" Y+ H2 G' lset i0 ~2 @; P' M0 ]" E& u
( i + 1)
( Q1 F1 u+ D9 q. d# P" ?
]
& x& g/ u9 M6 \2 C/ m, |let credibility-i-j-l 0. ]- F3 {: Z- K# l1 G
;;i
评价(jjl的评价)$ S2 g" k8 R" D$ U
let j 3
( x: |: ^! h4 q3 [0 _1 ^% V, zlet k 4
7 v& n0 F) ?# i2 Zwhile[j < trade-record-one-len]
4 d# h7 J  [6 U& O: y9 \- Q5 D" O[+ F8 k7 C3 ^  B. Y$ Z
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8 Z" O$ ~  c/ j, Y: F
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)( J+ P! H9 A" O  {% ~( r& _# {
set j
4 ^! }; z( D/ N0 ~+ d2 r. Z" p% }4 ~( j + 1)
. G! {. m4 S0 }0 ]" z1 g& M' D( e
]$ U' D) m8 u( h$ x" q8 Q% Q
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 ))- O6 M! C; \2 P7 H6 G* Q

' T% [& d, L, O( R

; s/ n2 P; c( xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 W! d, q8 H$ w7 A5 q, Y7 I7 I1 m;;
及时更新il的评价质量的评价) c8 v( H7 T, g3 h$ S8 ~: G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 V0 c/ e8 d0 @  F/ rset l (l + 1); X) N4 {1 [/ m7 N
]
4 J; Z: o7 p. [4 Fend; K" K. A( [0 i* \; I+ N
, D+ u* N$ K* E
to update-credibility-list
6 _/ Z6 f. X# D( vlet i 0+ L9 H3 |9 d+ C4 T, j5 G( q5 J5 F6 u
while[i < people]6 r' h, P" k6 w5 L  y
[- p! s4 u- D$ h% V$ ^8 M+ d
let j 0
8 a6 ?! E1 \8 ]/ v' p* s. Mlet note 0
! Z: P0 ~; ?9 u& h6 v* o/ llet k 0
: U2 \6 c1 |1 `3 s3 V$ Y;;
计作出过评价的邻居节点的数目
0 g- x# ?9 F% M2 A+ n7 ~# u9 bwhile[j < people]
, A& \( b9 l. Q- }6 o[
0 S$ \6 `" V  `2 S" @: b) a. Xif (item j( [credibility] of turtle (i + 1)) != -1)
" I( E1 _: F5 ~6 j5 B4 E- y;;
判断是否给本turtle的评价质量做出过评价的节点) E' N. J2 L) P9 l: p* O8 T
[set note (note + item j ([credibility]of turtle (i + 1)))! D3 G2 f( E9 t4 J6 \- F
;;*(exp (-(people - 2)))/(people - 2))]

$ V4 F9 q! y/ Lset k (k + 1)
; _: X( A+ `! `) R: @- u! b]
" f) o( J6 I9 _- J/ kset j (j + 1)5 @: q- L0 T2 B9 u# n4 a# @
]
6 [" e* w) r% v4 v2 m: h, Uset note (note *(exp (- (1 / k)))/ k)4 \2 _0 S# b0 O7 y2 `
set credibility-list (replace-item i credibility-list note). _6 I9 [: ?# T; C% Q
set i (i + 1)
7 _' {; H4 ?" h: X- @9 B  H]
6 f2 [, l1 X. E5 b3 dend$ v$ G% X; a5 r! ^5 m1 ]
; c8 `! U% b+ y3 V, k' n  W
to update-global-reputation-list; v% I# e. N& Q% s
let j 0
6 L" ~: M0 _8 @+ Ywhile[j < people]
* Y& H) p0 i( m4 K[0 G6 J. c8 F1 ]" U" s
let new 0! X0 z1 k& [3 h& K9 E/ G
;;
暂存新的一个全局声誉- C3 U6 f$ o- a& j+ M
let i 0
* ^* g* F2 D$ _: z0 Y5 Nlet sum-money 0
. m) @* R3 f" G: clet credibility-money 01 H8 U5 Q. y1 U9 z7 L- f
while [i < people]0 \, r! F3 C- M6 \: B8 u
[$ P" d+ t" A3 p5 V6 A# I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, {6 l0 n7 X& }0 @- @# s" c6 Hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 U. h3 A+ ^; Iset i (i + 1)' t2 m* u7 s- o
]& D! x+ G! m$ ?& S
let k 0! b$ z# B) ~/ f& A. J8 z6 j
let new1 0. H9 ]% ~* _1 E6 H  n2 r& r; x
while [k < people]- a1 ?, C: C0 t+ q) m: F' x( D
[2 d' L* @# I6 d0 y- q
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)
: T, X( f% E8 n) p8 C. L; Tset k (k + 1)' s- R' {! L% W
], w0 N) i% R1 x- j& w9 g
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! t2 d! C' G: b/ f- N( oset global-reputation-list (replace-item j global-reputation-list new)
$ X- q* R. G: D" o; Q. _6 bset j (j + 1)6 A9 K4 t6 X# Y
]
- G/ H% N+ a1 o/ \9 F! Vend
+ z  n! `+ F& u) x  w
! E. M+ h0 P7 X. ^1 I& V! r
8 x, x' Q; c$ a# B, A/ v( p, N% O4 ?: e2 R  l% u
to get-color
% |, R0 q2 M9 `* J  a9 \
" u2 x: f; D6 M+ t' `set color blue

. ~7 \8 `7 e" L9 T6 ^end
, @( p- ]" V& Q" G( T. X8 V$ X5 b) q$ F0 K' ?
to poll-class% `3 n4 r! S' R; i4 |2 a
end
- E5 e* Z; D5 q. z, H4 }7 }4 b, X0 k8 a4 n  r5 J9 |) b( J
to setup-plot1# d( b7 R* M$ n  ^7 I2 l: }4 y: F
. A/ M4 }  b3 Z+ |) x" e% I
set-current-plot "Trends-of-Local-reputation"
5 f% O' E2 L% X8 B( m8 W
& P1 X" q$ q& v1 }* |, [5 k" D/ @0 K
set-plot-x-range 0 xmax
# u. [9 W% S1 K

+ M6 s" p% m3 R* }9 B6 U2 X( S! V* sset-plot-y-range 0.0 ymax

* T6 E) t+ @5 g$ E3 Oend
: c% Y! I/ }* W
- `. K' ~" j/ W4 }- K' [to setup-plot26 }$ v6 H5 W) |

, q+ O/ _# Q' j. W$ vset-current-plot "Trends-of-global-reputation"

' x$ V0 a! A+ d; E$ d  e5 B5 I* D( V6 W( ~4 G1 X/ x7 b2 o, g
set-plot-x-range 0 xmax
% R, H) M8 o& G5 q
' P3 W. b$ z- L# c! L$ @7 N
set-plot-y-range 0.0 ymax

1 v" p! B. v1 _4 a; z& `9 Wend
* t& @1 n2 H& Y, p6 Q5 F: t+ Z2 X3 [: D0 y" n
to setup-plot3
2 [! g% Z; r2 V$ u, N. ?; j% S) }1 R0 e& M5 z' H
set-current-plot "Trends-of-credibility"
0 q; w: C7 h  A4 }  E% x" j; |
; z3 m) g1 |" G9 T" e6 I
set-plot-x-range 0 xmax
+ a' N4 u3 ~( ^8 ?% }* l
5 v& {1 |1 e" _. c
set-plot-y-range 0.0 ymax

* U0 X  X: V3 L  Rend: R% \1 L& n1 z, y( |9 z& k
1 B9 u8 X. Q- S9 P6 b, c
to do-plots9 j2 T& v' S* z
set-current-plot "Trends-of-Local-reputation"9 Z) K. L. k7 u! O- Z
set-current-plot-pen "Honest service"& ~0 r7 }5 M. Y8 }9 h0 v, W4 g
end6 a  r/ g* X- N5 x) G4 D

) |  B: R6 ]; ^[ 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.; g' @  Y" S4 Y; X" s" k9 w
0 a& F: v* I3 H, x1 _
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, 2025-11-19 23:54 , Processed in 0.024159 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