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: 15801|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:
8 l7 q) [8 V$ e) Qto do-business ! m6 X0 W0 m) y5 f: Q/ M
rt random 360
+ R! U5 o0 s% S/ C% c fd 1+ X9 B$ G7 ?# y- [' C4 S/ B
ifelse(other turtles-here != nobody)[
4 b' x# U5 F4 ^1 v. W! }- U( K   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.. b4 J5 R- ?' B; B% ]4 c  z$ Q( x
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    + E; t; f0 O1 T, O' x9 }
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
$ |# @( A# G& l7 x$ a2 k" k! U2 `   set [trade-record-one-len] of self length [trade-record-one] of self+ N3 v, p+ k  |. M% J
   set trade-record-current( list (timer) (random money-upper-limit))6 V8 Z; G6 C( _; t1 D7 k
, b% j, R. s7 I7 G
问题的提示如下:, u. p0 w+ a0 J6 q

) C6 h4 p+ C* y9 S( rerror while turtle 50 running OF in procedure DO-BUSINESS
' ?, h  h, F" u8 c  called by procedure GO
: g& b' J3 S2 p' `OF expected input to be a turtle agentset or turtle but got NOBODY instead.
7 t  U7 a, K" J9 P# L
(halted running of go)( ]2 d% \0 g$ A) b

7 t5 I* v5 h' I! d2 F$ B3 z6 {3 b- d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~~
4 J, S" c  R1 n# P9 I0 G% Q5 n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3 s1 [2 y% c, G6 ^
globals[, \2 h- I7 R" T& L
xmax/ f; I6 W' u4 ?5 D' p
ymax9 `8 S' N  W# @" u/ L& x
global-reputation-list, g, |+ ~8 s, m6 a, N
- I9 @/ K: u+ T  M# ^
;;
每一个turtle的全局声誉都存在此LIST
* H3 Y# b- p% Q5 h; |) lcredibility-list
2 O2 {6 P6 F' j;;
每一个turtle的评价可信度
8 K7 x* |! J) t4 K! Bhonest-service
& _5 ]! U. }' X/ Q/ h6 t/ l3 ~unhonest-service/ y- F: g9 a; Z; A# H5 h
oscillation7 l. q( W1 P8 W( z9 F" |8 ^/ ~3 Z
rand-dynamic7 S/ _7 u( `3 t/ C+ h/ y
]4 P. g: g; G; R

# [! f3 e3 J; pturtles-own[6 d- e" A; u5 A1 O
trade-record-all
9 W6 E/ G0 A9 E8 f( P+ ~( w;;a list of lists,
trade-record-one组成
9 N( \7 W5 P# B! v; E* ztrade-record-one9 a9 N- F/ `, H3 G9 ?: 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; T" K7 f9 u9 n( y0 S. i
0 b9 G; C+ @* \) V
;;[
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]]
9 e; J! F9 b# s: 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]
! R8 v  o/ E" W2 J% \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list1 k2 F. q+ s1 \8 P
neighbor-total# m0 W* j3 R3 [$ A  I3 d* ]8 ]
;;
记录该turtle的邻居节点的数目7 J5 p; ]) B0 v1 h/ ?! ]( i! i
trade-time
) O2 g8 E5 ]% z;;
当前发生交易的turtle的交易时间* m# [& ?7 ^' t" @. L
appraise-give' O7 ]- \# M( P+ E8 d, }
;;
当前发生交易时给出的评价
) c+ L! R& T( E+ kappraise-receive; N+ \- A6 q2 V( `7 l% }5 g- \5 X% p3 ?
;;
当前发生交易时收到的评价$ y$ r! o2 [/ i& m& H* O+ X
appraise-time% V# {3 H& J! {
;;
当前发生交易时的评价时间' f& ~2 t* Y7 h9 y; H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ u, i% D9 ^& J% V7 P
trade-times-total! w- u$ X1 C: w! @3 `: W
;;
与当前turtle的交易总次数
6 _  L. d3 |9 C6 S& w1 c/ ltrade-money-total. P- k. b2 K  O$ i/ x+ H' u
;;
与当前turtle的交易总金额
& q2 z& ?# j% B( k, K6 W) x$ tlocal-reputation
2 Y9 W" h2 \" X. \9 Q- Oglobal-reputation
! m; u/ t/ M5 \! V5 s" Ycredibility- z+ p5 t" P; ~- ]/ j7 n! B* J
;;
评价可信度,每次交易后都需要更新+ B( ~9 s$ f8 F* ^5 M1 r, R4 g
credibility-all+ \) j9 Q* Q* K) ]
;;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+ c3 J' V8 t) k
) c  I0 E( L: O5 z2 e- c
;;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
" n3 L6 a$ z7 \4 H" X, g7 ?( \credibility-one; s7 y# w2 N& i$ f2 `
;;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people3 ]* ?% y0 i) p8 G$ N# v
global-proportion0 t# B, ]* ^- s4 f# a3 e
customer
* j* l- ]& N9 ?; M# P$ d+ `customer-no6 X  P( h+ S( D" x' G; b
trust-ok( Q2 ~3 v6 n1 s, M
trade-record-one-len;;trade-record-one的长度
  y) A- l, q) @) Z5 T]- ?& b$ w; m* _3 m2 n4 H4 V& o  _
; \- I" D" S7 @! Y9 L1 W8 G2 K
;;setup procedure
, h& d8 v1 j" E9 L' X  O  n9 a, q. k; k1 G
to setup
. I3 h. I3 Y4 f$ x! Z+ R; B" h6 ^% j( G" m& r
ca
0 U& @, h) N) J6 F

1 L% a8 \0 t3 X$ W- p8 n) Einitialize-settings

* U- e8 S6 J. C' z( N
1 P2 z4 |* Q$ }% Zcrt people [setup-turtles]
# n4 ~+ ]6 m$ n3 h* W" W* q

& g- _) _0 V6 _- O/ B$ Preset-timer

9 Z, y4 m% H0 o9 L. Z
6 j+ L9 f5 K- `3 L. Y4 Qpoll-class

: M( D& G4 U. ?  ^- u7 |- ~8 J2 b( p; h# X: J# t6 M, a' A9 r
setup-plots
7 M% `! G! Z7 |: s
) {# U+ D: e. y/ F) z# n. j
do-plots
6 k0 ^! m# |3 M% X, s  K
end7 e# p5 Y# @; `. c. E( R
% m3 }* |  _; Q
to initialize-settings$ [5 f$ v$ u' ?# v* C) ]& x
6 S( ]  y% U- }1 f* W% s
set global-reputation-list []

4 |- I: ]9 _3 f/ L3 A& i1 g
; L2 f' P6 P. q# |! \- x$ ?set credibility-list n-values people [0.5]
  p9 w. V6 j2 f5 ?, m8 j5 }
/ |: I6 ~0 d& ~$ l% v/ A
set honest-service 0

( F4 B! |$ c2 X3 v0 a0 j  c7 y% U3 d( O8 @; z
set unhonest-service 0
6 L+ K: S/ u# n" A+ p0 ^. F
/ C# ^/ @% ^0 W1 p: B0 Q
set oscillation 0
  J* R% D' C( P2 m% P  m

/ V- M$ e; h5 }# {7 m- Dset rand-dynamic 0
) a: d7 |! _7 g( x8 l4 w
end2 @: D) X6 I& D9 w: b5 U# E
' e; @9 h9 S4 P1 ?5 a4 u' F( c
to setup-turtles 9 h! f: ?* f+ M( y" h8 n7 K: s
set shape "person"
4 S( Z0 g) W; X# x4 q: m' L, |setxy random-xcor random-ycor/ y9 ^3 m. @" [
set trade-record-one []
7 Q3 J0 V. q8 y; Y) ^, S: I6 I0 |
' S4 A  U1 [) K) g
set trade-record-all n-values people [(list (? + 1) 0 0)]
, o" o* {8 Y: F$ Q( k4 x) r
( j& f: m- U, J, ^6 X- c
set trade-record-current []
% Q  n3 N  b) x* i# Sset credibility-receive []
/ H, u" p2 m% B9 h) a& K0 }$ j+ Xset local-reputation 0.55 E" ~2 ^9 W* }
set neighbor-total 0
7 p: E+ h7 S. L9 _& _! ^8 ]) Q3 l# Oset trade-times-total 0
2 ?3 `7 X/ s. O$ }set trade-money-total 0
' ?0 g, E5 g% }6 I# S" _1 vset customer nobody
( X. X* ^! _# ]3 Z1 @+ `set credibility-all n-values people [creat-credibility]
/ U/ I$ h6 }' x1 X$ yset credibility n-values people [-1]. g1 w" B# c; K4 n
get-color6 o* k( F. ~0 {/ ]$ k; A

# D/ G! ?6 E1 O4 \* ^6 v; c! Kend
* s: w, P8 x1 u7 e" }" q* b9 ?$ y% Z3 x+ E
to-report creat-credibility* J6 w! r% S" P0 R% m* c! C/ {
report n-values people [0.5]
$ l! l' o3 c% R# z. V; ^* j4 \end; x* s; |$ X! W3 G5 _# n% s$ D
1 H9 I  D, z. G& Q# b4 s
to setup-plots# `* J# z( C0 _" k2 K* `

, S4 |; ^' @+ g2 Oset xmax 30
" N) ^! I0 H" A- Q9 W0 `- y

( [- L4 F: m7 Xset ymax 1.0

8 T7 x) B* r! L: p# `: ?  j/ v' i% ~
5 J$ T1 P- ^3 dclear-all-plots

; q$ B4 S1 A; P% B& v2 }4 M# z6 V3 Q1 N: s( G4 h
setup-plot1

- h; N4 T0 ?  j9 ?7 c
# \$ H* T' B* d3 f% H9 Xsetup-plot2
" i, s% _- f5 A" o% U: R0 D* _
7 K% ^; G" p' _8 _: @
setup-plot3
3 p) E3 ~7 d  \* y0 p
end1 b) |! r5 V) G/ A

4 Z& M' c9 T% A9 n( @6 _0 F& X( k8 R+ G;;run time procedures& S9 s% B" [' D) f5 R7 s' V

7 M3 N2 E2 u* K9 _# G% yto go
; `) f0 \  c( c: j0 w% F/ N; j: J. ^  i. l/ l" ?
ask turtles [do-business]
4 P; _. l" w% A7 x8 ]& k/ c* T
end
: F5 C  p. n) @8 l' ~
& @: \  A& K8 k, U( f, l1 qto do-business 3 w$ y. F& ?7 ^( D) m7 l

% R$ h7 k* j- q4 P9 d9 D
8 ^) |! d8 A5 i* W* crt random 360

" W8 L4 r% Q+ q5 x4 M/ ^! \1 K5 ^2 g3 w' M& Q1 ~
fd 1
8 ?# W! j: r  \7 E( |# N( p

+ z% f2 z+ A% }& nifelse(other turtles-here != nobody)[
/ ^2 g8 P3 n/ h9 R1 t8 y' \' \. Q4 _
* j; r; j; W7 ?8 r, S
set customer one-of other turtles-here

& C) z  f" |/ |! B& ~# X) e
% i# U* A, `+ H- S& u/ f9 D8 n;; set [customer] of customer myself

0 Z- m2 C' v( h1 i. V- J' E$ f8 Y) I3 z( H! l* Y& P. }/ x
set [trade-record-one] of self item (([who] of customer) - 1)3 q2 C) @' |" ?. A0 ^
[trade-record-all]of self4 J; y3 b. _! |) i1 u
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

, I, a: w' w9 P% f: \# `
: m' T$ C7 o" t3 H0 p. R7 oset [trade-record-one] of customer item (([who] of self) - 1)2 Z; a" r: @; ?- |3 m
[trade-record-all]of customer

& [; [+ }1 j% A5 ^
" m0 u7 c9 }% Zset [trade-record-one-len] of self length [trade-record-one] of self

  k! W# T6 A6 l# d, Y: Y
! r9 ~, P: G+ Q! p' nset trade-record-current( list (timer) (random money-upper-limit))
1 T; r5 c( r- t2 T5 {
$ Y( x9 f: U4 z3 S6 l
ask self [do-trust]. K: _+ T- C/ g; x" v# P
;;
先求ij的信任度+ t+ _4 c( E* s! A( v" z( ~( V
6 f% y2 o; n( ^2 n7 X2 q1 D
if ([trust-ok] of self)/ o3 @) t& n$ E9 b4 P+ n
;;
根据ij的信任度来决定是否与j进行交易[
' t" S( S2 I1 y* ^ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
* A$ @+ r9 l& q5 d3 n8 \% K! d5 N  O7 \$ O/ i  v' i
[
% c/ @+ W1 W0 Q( d) _7 L' E

0 _. I5 v6 P+ u! {3 Pdo-trade

! P, y' z. u3 o8 t
$ Y2 V: u; [  o0 b+ W# l3 A5 Oupdate-credibility-ijl
3 j; _( P; _5 T0 \$ [5 c
% T1 }  T2 u  X% p
update-credibility-list: n: k6 s2 s4 ?2 X
/ X( Y* Z1 H2 |7 Y/ }5 v

6 a2 K5 ~1 U' Uupdate-global-reputation-list

: {0 J5 f4 [4 M. r- p- L. m$ y% C! \2 _; U  |) P8 m5 B
poll-class
' t% d$ Z" i. ?3 S

+ i" I1 V5 D8 I& C$ }6 C+ T( cget-color

2 U+ E# Z* z# m8 E0 y$ g$ a
8 q: X, c: m& I% K- l5 ^/ K]]/ E- E1 Y1 O. q( G! ^& C
9 F1 a. u8 z0 v' q
;;
如果所得的信任度满足条件,则进行交易
8 Y# b) E4 |9 r' }
5 }" @2 W/ ?; v$ Q5 r- o" ]" Q/ k[
' S9 h& ]+ h; ~; u3 G, @
' Z" s& Q9 o" C
rt random 360

" A) z0 q" o& P0 B* `
5 o+ [+ W! k; B) s0 [fd 1

# u2 ]: |" f  \0 j( N6 t! ]8 s$ B' e' F* R8 {/ V$ s
]
6 O- z9 ]# K1 C- S' \6 @/ j6 ]

5 }6 c3 Y' ~" I3 Cend

! Y$ Z& ~' x, i8 A/ H+ L4 @$ s
6 f/ v# r: v* i, }7 N* {1 f; j$ Gto do-trust
9 y& s8 W6 C1 i4 T9 Yset trust-ok False9 W8 n& S( o9 x& M; m
$ Y8 ]* k2 u( i: p' y
; Z2 |4 d# e$ T8 D
let max-trade-times 0
6 u" F' b7 Z( a9 Iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ l! x& K+ i2 D1 l& H
let max-trade-money 0* X6 B- n7 }: ^* o' j% I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% `% Q3 N5 m- z! d8 l
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" f) U8 }  g  e1 ~7 v3 F0 q+ j2 u" r! E. t1 Y4 w3 {

( Q# z7 S3 o; Mget-global-proportion5 M" i( y. O5 a# W+ l4 }, j, q$ r* t; C
let trust-value
- y* w6 K% e1 J+ Ylocal-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 B5 L( u( u' g6 b5 r. A; V
if(trust-value > trade-trust-value)! N' [% l/ E& x0 x# p9 C+ Q
[set trust-ok true]
2 V+ z8 x: ?( M! C7 yend
" I* {5 T8 f5 t) y5 Y+ V5 W6 W+ q& O' E# Y4 k+ T+ S# ^# ?
to get-global-proportion2 `8 g  D# ]/ \+ {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 F. i) G' ^+ [+ d- s* i9 k; \[set global-proportion 0]
# b" h4 P( V1 ?2 E" Z. G6 K# V" \: {[let i 04 N& i; v3 K0 O! c' x6 d
let sum-money 0. y- X* {/ n& `% a- S8 j
while[ i < people]8 T- |, [7 C: `. U, k* F
[
& Z: o; E2 i9 b; qif( length (item i
# c4 L  @+ U) s4 g2 w[trade-record-all] of customer) > 3 )
% k9 o0 E1 U$ G, f  t
[0 k+ n1 L/ H3 a. d7 o1 E
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& J, B0 a( V/ X: w0 ^2 H0 `7 F8 @]; |7 v9 ~1 v* Z; i4 J
]
" p6 n* ?: v/ K( \3 A2 ^$ z2 wlet j 09 \: F9 Y) l4 i
let note 0
; L$ Q+ a) q: t: `9 W- d  Lwhile[ j < people]; f- D7 ?+ x7 n% a0 L' i) K
[& I$ b: T8 i. W2 S
if( length (item i8 v1 J9 z4 X- D; ]  v
[trade-record-all] of customer) > 3 )
6 y% W/ |& [  ?( J; f6 w
[8 {$ X- T9 }  Q7 P: k
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 p0 H) ?- V3 v& ?* M* K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 Z( t! H$ ]9 k1 |8 O1 M- }4 J& @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 f0 R" J& f8 s0 s+ G3 u2 G]
1 Q% I0 H5 r% h3 w6 c! w% H" {]
: N; U9 w- E  gset global-proportion note
5 |& \! ]) `, V9 ^# h: u6 U$ m]
4 h$ L& K" i' c: Q% lend
/ S( r7 s: Q4 V: \) c  G/ B, z$ C2 i% E9 t8 k- S
to do-trade6 L9 v9 E9 A3 O
;;
这个过程实际上是给双方作出评价的过程+ Z+ ~( [1 V9 N7 b- {7 s
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价& P" ]$ C' }$ z. c, u5 l+ L/ o
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
5 u) Q" v- @  N; {set trade-record-current lput(timer) trade-record-current3 x- y8 _; y7 b& v) m' c! V
;;
评价时间
& L' m" U, Y4 n9 X; ?ask myself [6 `% Z2 z! X* S, O2 |( b% B; b9 r; |
update-local-reputation
2 b" Y  G: p: K9 q3 T% t& [set trade-record-current lput([local-reputation] of myself) trade-record-current
3 v7 F" t* T! v" D/ X. T& o]1 s% M6 O! i9 J+ ]6 [! p
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! s& `1 S! u/ @# O1 E
;;
将此次交易的记录加入到trade-record-one6 E9 {0 Z; g  \/ I' Q  Z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* y6 ]! Q" w* u" s% xlet note (item 2 trade-record-current )
1 R% \' t) A! ^5 N" o; O; S' iset trade-record-current6 s; Q9 |- W. j
(replace-item 2 trade-record-current (item 3 trade-record-current))

% t+ x& n$ v2 e8 kset trade-record-current
$ n3 ~# w' }) ~5 ?(replace-item 3 trade-record-current note)
: {5 F% }( R! |/ y6 L* b8 L1 S( N# C/ l0 f# Z! S

0 s' Q: {. A! r2 U* z9 {, Uask customer [: F* ?, S! ]' k: ~' g
update-local-reputation
) n/ j# ?1 Y% ~( e# H3 O3 I  B: K/ Dset trade-record-current
# r  ^, L- t4 v: k0 H/ U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

4 e( D% w3 o  K$ F9 H]
' J; X8 ?5 N6 f' J$ v# c9 s8 n* u$ K3 T0 S6 {$ F

  h3 q: i# E/ z. e! j: m6 @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 R& y8 z5 n: J3 \
% V+ y9 Y' S; G7 Z) Y5 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ J5 D4 G5 R5 k5 D# _;;
将此次交易的记录加入到customertrade-record-all
) `. }1 u8 l+ ^$ h8 Cend5 N2 o+ q; O- T0 I0 h; X) O

' J5 i: w# m  v+ |: n) w& Hto update-local-reputation* j; q) d# \% ]9 a
set [trade-record-one-len] of myself length [trade-record-one] of myself- g$ T, t% Y% |  x8 l$ C$ m
9 V; A9 m; R# V9 K  \

( r- L6 U3 y( W# A: ?$ t6 U& Q: A;;if [trade-record-one-len] of myself > 3

* o5 s2 k/ v2 n9 Z' Eupdate-neighbor-total
5 v6 j' L4 a. v4 J; x+ u9 g9 {;;
更新邻居节点的数目,在此进行
. i, c6 m& W5 j8 ?/ ylet i 3
1 D0 n& x7 V3 c3 e( F% Hlet sum-time 0
) [7 S0 ~6 _/ I7 U3 Ywhile[i < [trade-record-one-len] of myself]; ]1 F$ G& i8 i3 H) z' F9 x
[
( H+ |  O- n" U* f$ Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' R- g2 x% L) \6 J) ^9 D7 gset i
- _' l! V3 U- Z  }5 ]* F( i + 1)

$ |4 M' D& T* m- b4 X: F]( f4 S2 J3 G1 g. ?
let j 3
  S1 }; ~( ?; S, Elet sum-money 0
) I6 J7 k. V7 B& g% Rwhile[j < [trade-record-one-len] of myself]
7 ?: I8 b+ R9 u8 c: [0 E[
1 q& I$ }1 t) A- b5 \2 \8 H) Bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)  u2 [3 T& N9 s
set j
' N4 D3 Q  Q. y: V* m. {( j + 1)

$ D# V5 p+ p' z% c" _3 L7 }]
8 ~" T- D  y: e' ~let k 30 H9 Z% ?* y7 n: [
let power 0
- j8 n: T! Q6 Zlet local 0
: |4 }3 X& D- ~* J' l1 D9 ewhile [k <[trade-record-one-len] of myself]
% o, A+ `' d9 r6 l6 ][
3 y! [% u6 ^- u8 Z5 dset 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)
; ^2 ?% h/ G  H, ?$ Tset k (k + 1)
5 ^! s' K7 c3 F  w( B  x" j) E]
3 B8 N/ L/ v, x0 M6 O" Aset [local-reputation] of myself (local)
( i  X2 @+ ]0 S& qend( R1 y9 @& |( d) N8 P8 H/ _

" `! y/ A6 P9 S& O, t: i7 T9 U7 |to update-neighbor-total
$ X- o0 N/ G+ Y- z% P& j* w* P, X# H9 A  r  ?/ \1 i8 Y7 q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" `6 {0 t6 f" N5 i/ O5 o9 X+ {
8 O5 r- k  h5 N9 t6 Y
end: E& s: P. `/ U9 m
& b3 r# ~. t: m; G
to update-credibility-ijl " m( r1 ^% j4 o* K

& b1 I, H0 m' N: m5 K3 I;;
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。
. s0 X% C% t7 g8 P. F9 ~$ Tlet l 0  a$ ~% H8 c" t9 p' u* S4 |1 }
while[ l < people ]: u9 s: r8 o2 l/ R6 J: K
;;
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 Y+ l' `( @. k- Q/ ?[
6 F: b1 J; g4 @& u: F: |" k# elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ u# O, H( }7 Cif (trade-record-one-j-l-len > 3)- \1 T4 c6 }7 o5 e% R9 _5 Y5 `
[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
/ H- A% L- H* Q% nlet i 3' X8 C6 z! R$ T
let sum-time 0
! }" V+ C: B; z4 O( X% ~- U8 bwhile[i < trade-record-one-len]
8 {+ L$ |9 j# \3 l5 K; [. ^[" a$ {2 T/ c, s/ Z0 ^
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ t+ S$ r" B  b( D7 k+ D5 _set i% D- w; p" h& z0 C6 i  f
( i + 1)

- g/ G0 r' U  U. S, h, e]
+ R' S" g! V8 u3 Q5 d$ G2 Flet credibility-i-j-l 0
6 P) D, H7 W: f/ C;;i
评价(jjl的评价)* ]; Z9 T4 o2 r1 N/ w
let j 3
9 E/ ~6 I% v* {, q" s/ w9 g) `0 `let k 4
# e' {$ X- D2 |# w' Gwhile[j < trade-record-one-len]
& W1 y4 B' d( I# N& [' B) \[( y5 l& R% y, K; J& P& m6 x5 n, 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# X( `2 }* B  \
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)
5 d7 W- l$ H$ y# t' S6 Xset j5 H/ b. n; \6 o
( j + 1)
3 w4 ^# `* t: j/ \( W
]* b& R. {4 s* [: {2 `7 ~  x. W
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 )). n0 ]/ j8 |9 [

; R3 K5 F/ j6 Y( B- v/ p) i5 F

3 P% f7 P$ l3 S+ n+ r8 s0 rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( Z& Y( W: g' }3 g7 K* I;;
及时更新il的评价质量的评价" B0 d7 N+ S9 E( a" E
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 l, o4 v2 j1 R  Z0 Z# K8 n
set l (l + 1)
# l8 t: E' F2 f]/ H8 b: y) E; e% Z
end
( W8 a2 X8 r% ~/ X9 W' `. K, f# @7 v3 ^' T# o( t5 t& ~  ^' q
to update-credibility-list! n, v7 t- {  m! ~; o) n0 l' S5 n' F
let i 05 i# g5 h0 h6 y6 c+ F8 o: A# a( ^
while[i < people]
& ]: g! o" n5 T6 ]$ }/ i3 a[
7 S1 U& u1 S9 @  ^9 x# Jlet j 0
# q3 p& W3 `+ v. qlet note 0
, }  k& }8 j1 M" B5 x, h9 h5 Clet k 0, m1 l0 F6 `- ~) d
;;
计作出过评价的邻居节点的数目6 i; P" Y$ n" W0 k% X
while[j < people]
2 N$ j3 Q- o5 [6 T+ E[7 J5 m  L# j! W; M
if (item j( [credibility] of turtle (i + 1)) != -1)4 o2 [) p- n5 b
;;
判断是否给本turtle的评价质量做出过评价的节点
) w0 [# s! A2 b: f[set note (note + item j ([credibility]of turtle (i + 1))): k6 S  F( q- L/ Z1 m& ~& {
;;*(exp (-(people - 2)))/(people - 2))]
3 L( q) }9 z' o4 r5 ?, o
set k (k + 1)4 o5 ^+ Z" z4 X& Z  I: R9 A
]! V% K7 h/ B- r, g( [
set j (j + 1)' |7 [" M3 o1 a9 E* F
]. D- W) c2 a' |% `/ \0 g
set note (note *(exp (- (1 / k)))/ k)" k5 t3 a% a# t5 s
set credibility-list (replace-item i credibility-list note)2 f& }" W6 t( V1 b6 h0 Q
set i (i + 1)& T( Q* M& b& q* j
]
9 E7 Z& w9 v) M: Xend+ n; D7 e! b5 K6 `/ @
1 g) Y* @2 W! u$ [1 ^
to update-global-reputation-list, j9 }2 Q0 h5 I+ S; V  @$ m
let j 08 _! r+ m( ~1 Z, l5 |
while[j < people]
' ^' M: S7 r- o) G+ t5 h' J. u& b$ C[1 D, T8 M4 U# H+ ]
let new 0* {/ H0 T* t" D" V4 ^/ c
;;
暂存新的一个全局声誉5 l& W) g, v1 e1 z6 j% T) }
let i 00 V% s; V- P& Z: \7 D( O$ _
let sum-money 0  X* _6 S. }& ^1 b1 J. m
let credibility-money 0
! Z9 t3 N# g, h! D& C. Cwhile [i < people]
8 t, y- }+ {$ N, I9 h[% Q/ L1 m" T) B: y# h- S$ R8 m" {8 v
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 p8 {/ m% O. h) O
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 {! Q: q: e6 X6 ?
set i (i + 1)- i/ o+ X: S0 P$ G' V* U% H0 g$ r
]: b2 y# j- |$ K4 p
let k 0% l: A. Q* A* a( w
let new1 0
/ W  _& ~1 J# y  M; kwhile [k < people]0 l! ]+ ^1 `9 l5 X2 p* `0 y: d
[$ F* B2 O7 ]& ~* E! {5 @! \& t# G
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)% I2 W7 ?7 d! }; {# j
set k (k + 1)
1 y) {! O' F/ v  V/ g! ]1 g]
) [6 @8 s) {8 Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 v: K4 a' ~& ~- x) Nset global-reputation-list (replace-item j global-reputation-list new)
& @$ h! [; a0 N0 z' p: e: h& I! sset j (j + 1)
% [* L) R6 c+ d' \]
5 g/ q, b9 b% m% M  V6 Bend
0 @5 c7 }2 k3 c, L) k0 J+ G
8 e/ X' w5 H- T& v8 V. v. v! c% G  y% ~; X9 F: f$ Z
% B0 y! t9 U) X0 c6 s3 d
to get-color
& w) K5 l( ]- K  k  v2 [" ~' \" @! o4 H
set color blue
; {6 `" k$ c2 G, ~! u
end$ U' A- X% ^3 p* h& u

0 e# d6 o- K( L& \7 l+ w9 G" b9 ?to poll-class
: I" M4 v( c5 Q7 Z+ G: Hend$ v2 @4 Y9 E: U) ~2 d  P
' ?- o. h, m1 n$ q% X8 T2 D6 r
to setup-plot13 |5 J6 c) X' ?% E5 t5 D

; ?+ P/ w1 Y5 U- G, m% kset-current-plot "Trends-of-Local-reputation"
" ]9 u. h1 p2 m& n# v
' j: }) X  v' ?4 Q. Y
set-plot-x-range 0 xmax
. ?# j$ k) e- S$ T% H% b
( z1 K6 S' x3 ]4 k+ v" l/ ^
set-plot-y-range 0.0 ymax
5 C& m8 q+ V& O  Y  q& E
end' p3 D" w$ S; u/ U& G0 g
( ^/ O. c  ^4 B5 }$ L7 z' H$ d0 d
to setup-plot2; U7 Q" F8 i' m, h. ^5 M

1 v3 j& E! f5 w" K; H+ }$ @set-current-plot "Trends-of-global-reputation"
; |* D1 h# a' Y7 @8 d" d, R
: B) |/ ?; V3 g
set-plot-x-range 0 xmax
  T; O/ L, B6 L0 q

* ^6 o( u8 N; \. tset-plot-y-range 0.0 ymax

2 e7 Z/ d4 v+ {$ `) w& Fend0 n# R  y) q* S+ C
  z" @) c8 `+ Z6 E' R. B% g
to setup-plot3
4 w, D; L5 i! n' a: A* N: M: }/ E6 w/ e
set-current-plot "Trends-of-credibility"
. S! {. ?4 R7 k# |$ D

1 Q0 O7 m5 s: _set-plot-x-range 0 xmax
! _% m$ g* Y1 B$ k2 G1 a

4 p' [/ x- C. ~! x" T! j; c) }set-plot-y-range 0.0 ymax
5 Q! K+ }7 k) n0 }3 v7 A
end  Y1 L# K& }; m3 d( I/ Y
, E: ?, p, Q. t9 |; u! H- u
to do-plots9 x5 E( l. n) y
set-current-plot "Trends-of-Local-reputation"
. E8 K* n" [4 v) _- U% s  nset-current-plot-pen "Honest service"
+ u6 m! |- [/ D1 _' O9 jend1 |" r! g- `% R; V0 _$ k7 H

6 Y' w, Y% o# B0 S# l7 U  l[ 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.: j7 M9 F# A% {/ T* Y# E8 W

3 v1 D% p3 R5 K1 |+ M/ 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, 2026-6-26 14:56 , Processed in 0.029089 second(s), 18 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表