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: 10746|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:. u1 ?2 L! ]& n- j4 U3 p( m# A: r
to do-business # r7 d" F1 j/ l2 q' A
rt random 360' G2 c( a$ d, x2 ?2 M! D% O& U* c
fd 1
- Y% M) q- n/ f$ O ifelse(other turtles-here != nobody)[
6 h& `! b5 h+ ]) u/ i$ 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.
$ D" C7 y3 g7 W1 Q: z- x0 w   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
% L; w' X: K- a/ @2 U5 S   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer: N2 Z! P- m4 ?5 s$ K
   set [trade-record-one-len] of self length [trade-record-one] of self4 r  U, E- m0 V  H5 v
   set trade-record-current( list (timer) (random money-upper-limit))
9 u/ a1 T6 W- W
$ a- Z3 h9 y9 Q7 D1 p( H- _问题的提示如下:
  I2 h3 r# y5 x) j  x7 e' G4 D9 o1 i- I
error while turtle 50 running OF in procedure DO-BUSINESS3 ?8 e. u( \3 H* Q; Y5 B/ K
  called by procedure GO3 T0 G1 r) X  {- e# N+ b
OF expected input to be a turtle agentset or turtle but got NOBODY instead.8 i4 P9 b+ z- s( J% k/ [
(halted running of go)
: d" B3 O3 ~% G2 Z$ ~! w
. f5 W1 ]/ ?. N) E* n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~~& I3 T" @$ ^- y$ I( ?! q! G4 Y) j
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
' g$ [( g9 U  Z0 ~5 G( ]0 N. d+ Kglobals[
% g* V# t( R7 r( ~- g; {! x% }xmax$ x9 z" Q& y# q* `
ymax' M  P" J) W$ L  b/ }7 |
global-reputation-list$ D2 H9 \) a& s% n' m: X

$ `. t) o$ F7 [, S! U1 I7 J! r$ \6 U;;
每一个turtle的全局声誉都存在此LIST( R3 o8 Y2 s) b7 K: Y' u" f+ p
credibility-list
5 j  W, L( b( v( ^7 @4 ^;;
每一个turtle的评价可信度
& M, M, H5 V& s. B/ N# Uhonest-service
. H( s4 x+ R: m! ~/ xunhonest-service' A' Y8 A( w6 p0 A
oscillation
* y! \* {# n( ]  a" @" F" V" R% Yrand-dynamic/ ?7 O. f% w& _: E7 ?8 E
]2 \" q' x+ K  i" U
, h5 K1 L( }& ?# T9 K- k9 p
turtles-own[) ~. _' o( Q6 [6 m; y# e
trade-record-all7 G  B0 o7 x4 T3 Z4 Y5 Z
;;a list of lists,
trade-record-one组成, G& Q, S; L# V1 G
trade-record-one$ K/ Q# R7 D& a: [0 N) [( ?* r; X
;;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 S- P% J( J* h) h. E$ T4 [6 p) r7 m1 W! q" k( l& q' g& f( r/ P
;;[
对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
: ^3 a2 i, {1 ^3 f) f1 d7 [! 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]
; W3 A2 o8 `' G, H+ c2 [8 _! rcredibility-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
* P) S: ^" ?9 k8 K! O: ~* qneighbor-total0 `# n0 [& O7 T0 m6 t( B
;;
记录该turtle的邻居节点的数目
* K- F% S- I" x1 a3 N. ntrade-time2 j: ~8 Y$ ~3 P6 W# A. N
;;
当前发生交易的turtle的交易时间
! ?3 D: z, S* z2 u0 Happraise-give
+ r% |8 d4 w) D: B9 T  D;;
当前发生交易时给出的评价
3 }9 p8 G, o5 I- O' kappraise-receive* b- C/ r$ N# s& E0 g! r
;;
当前发生交易时收到的评价( G/ {( ^' q% i" O" b9 E6 y
appraise-time
! s- M. m1 V3 |' y$ c1 A+ A# I/ @0 E;;
当前发生交易时的评价时间4 k* i$ M& Q; q4 G6 @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 i5 w) R$ f* Z/ i6 Otrade-times-total
" R: [+ f) }- E+ V8 E! J;;
与当前turtle的交易总次数
2 f1 d. {& q0 y4 I  T  @2 ntrade-money-total* |0 Y: P- T% W" O
;;
与当前turtle的交易总金额
6 d& @8 c* Y7 w1 x* q- A% C0 Zlocal-reputation
1 u& t: g7 k) K9 A7 G' _/ Iglobal-reputation
: _1 ]! ~* P2 E, n: a) [credibility" h+ {$ H$ Q. x" L! }& u
;;
评价可信度,每次交易后都需要更新4 @4 G' ^  H2 W( O$ y! [7 x9 @) A1 M
credibility-all$ }( x* A) F7 v9 `  L, Y/ H* w
;;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
0 z1 _  {$ n; h2 j+ C8 V- j! v; b: U$ v* B5 v- F! S9 j2 N
;;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# X2 V" {. H/ B" n, J/ m% M' ?) y
credibility-one2 B/ }9 s, k6 |* L
;;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
) ]  F. M. l$ x. nglobal-proportion
6 ?+ Z6 L' J) l' acustomer2 F5 }6 [, x( d
customer-no$ P; ^5 r9 K6 _" X: j: F
trust-ok8 N/ r6 q7 E' I4 s# p0 a
trade-record-one-len;;trade-record-one的长度5 K, r$ W2 A+ V+ g4 a7 O  t% D
]
/ z! ?, j1 N. T
. m- Y5 Z8 D0 ^' f/ t0 O& C;;setup procedure
8 v1 x5 V! j4 t+ P: U0 u0 o( o% ?! i; F5 E
to setup
4 N: i! N! p! d6 \% |2 p' F2 B3 a/ y. T+ ]( R
ca

% y6 S$ I7 p0 i# }! _2 C- O* A$ @! @, a' b* h; x. m  j
initialize-settings

) a  h' `) l& a7 Z; k% N3 ]* G% f* i( O, u. k4 u  w- D+ }% J
crt people [setup-turtles]
4 p& W  @$ z; }# g- V/ W
9 C0 ?. X5 g/ H
reset-timer

' M) T& X( a( F( }- z  e7 @4 s& b
8 r9 k' b; w. Lpoll-class

) ~4 J( X: J5 U
6 ]% G# O/ d6 s4 m5 usetup-plots

* b$ C; h: t. U% C, B3 u4 g) D! J
# t( v) D7 j. f4 e( b4 Tdo-plots
# H- K3 {' g% r
end6 r1 y& W4 O) C$ l. [

. @7 Z5 A7 [) M& }; g5 Tto initialize-settings4 \& @& K7 F0 A3 x. U. i/ U7 I
8 P( ^1 j( i! O5 A
set global-reputation-list []
& Q3 T7 W/ J" o! `) ]$ `7 l- k

1 y7 m" L- `: |9 {( Wset credibility-list n-values people [0.5]

8 X5 _6 C* v4 K' u% |' H7 A6 i; Q( D6 C/ `0 O
set honest-service 0
, k1 u8 \( v) g& I0 ]6 @) o* U  C
' e% W; i& a/ \# p' N$ K
set unhonest-service 0

! i9 A' F6 s0 }: N' S- x+ n" g0 K" ^, s
set oscillation 0

) ]2 h0 S& t6 P- }) g+ K; a0 L0 S; |( A
set rand-dynamic 0

  ^7 V# s. I, Zend; n, _0 w9 w! q' K- ^7 z; v
! \& n% Z! X# ]1 Z( p# b3 U& T! _
to setup-turtles
% L$ Q! U0 n$ D, @; Aset shape "person"
, J1 d  m8 S9 s% Y4 a, Psetxy random-xcor random-ycor
. C' a1 C* Q* V2 E+ qset trade-record-one []# h! W+ _% s# g

2 b& ]% q3 Z& mset trade-record-all n-values people [(list (? + 1) 0 0)]
$ R0 v) M; x4 Z& n6 v

% M8 q+ L# M7 K# q9 ~& S" M1 uset trade-record-current []- @0 n, j: |3 L, P. H9 Z# L
set credibility-receive []
9 [' C. {2 o$ G/ M  Z/ \& nset local-reputation 0.5, }$ O8 Y1 p! ?: u4 W, ~: i+ |* Q
set neighbor-total 0
0 g- ]# x' d8 L9 B7 zset trade-times-total 0
* C3 k& ?2 }# q% x9 L; Pset trade-money-total 0
3 U/ c. g- J. e' t" Wset customer nobody# {; s+ P* B% d' h# F! E
set credibility-all n-values people [creat-credibility]
( m, z/ a; _8 ^+ kset credibility n-values people [-1]; t* I2 p! ~0 R( [
get-color, v/ h; O8 I$ h. W  h4 |  G
- E3 F% D% a5 T6 H  g
end8 t6 t0 C- Q' E6 e: I3 J
' b4 x9 S; Q" \2 i, Z& T
to-report creat-credibility: p) A% E- W$ r. l. A
report n-values people [0.5]
/ i) [, w) @0 ]. ]7 O+ I0 ^end$ [9 i. F& Q! q

/ ^5 h# {$ {: \/ F3 \. p' wto setup-plots1 \& Y- k6 n3 n3 [$ `4 X
! T# d( V, Y/ {9 l4 z
set xmax 30

" x% k4 I6 t* Y$ Z; v6 h5 v$ H% H; B* V6 D) Q% Z! s
set ymax 1.0
! U+ J) B7 p& a& ^1 d. I+ w% \% l2 q
) X+ r* I1 {/ \' d
clear-all-plots
+ V& X7 a6 E' d6 l

" Q/ i# ?8 S: g4 t: W# Ksetup-plot1

; i+ `& S: e/ N+ R. O3 \; w0 h7 O/ }* R8 S9 g6 B
setup-plot2
5 h0 |, o  c/ h0 L4 Q& A

' Y+ D2 g3 X& n" _+ S/ v- d5 Q: ?setup-plot3

5 K5 O1 \$ }# Z  D; j- ~end( v6 Q( {* J8 S% v; C* g" e* V: c

" i$ B9 Z- U0 o' p5 e& e$ H5 ^9 P;;run time procedures  S, R' u$ Z$ Q; L' d5 j  T
2 J! e$ _7 b" F, c
to go
) U6 p  H5 [4 ?' i2 k7 k/ L0 {2 N1 h
ask turtles [do-business]
0 m8 w* x; Y' o7 `; d
end
" F3 _# m. H- ^# R
; T& S/ ?& A7 Vto do-business 8 B( M' x% d0 v2 `, V& j
! q& S: {9 D' z5 U7 s

' r7 F, |8 J; A% q" drt random 360
0 k  v: P$ K+ B) _( g  m

, J. s% ]9 d+ e, [- e6 ofd 1

8 B+ g. \( b( q8 e/ @8 t) f# f* `1 c( J' a5 e6 n, i2 r" g
ifelse(other turtles-here != nobody)[
* t  `2 n: d# c3 n  r/ x
4 S' ~5 K$ o9 V0 a: ]
set customer one-of other turtles-here
2 M8 C# `# E7 Y) ~7 k8 g
' t; O+ T5 u9 `" J( ~
;; set [customer] of customer myself
6 z; \# q( Y- a) x6 U
, M( n/ O$ n+ s
set [trade-record-one] of self item (([who] of customer) - 1)0 d  [: E. f; o2 b( L7 ]% y
[trade-record-all]of self
7 j; n1 B2 g6 R; W+ v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

3 `, [/ y- y, o3 i$ _4 I+ d2 n" ]9 x. `/ a- B# z
set [trade-record-one] of customer item (([who] of self) - 1)! Y6 m# b7 `5 f5 _  u
[trade-record-all]of customer

/ p' W3 _0 c/ Z
6 K. D1 J3 k5 v: O# @6 x* T6 C& u! oset [trade-record-one-len] of self length [trade-record-one] of self

0 g6 s$ w! I& R* R% a- j) q: U3 ^9 h
set trade-record-current( list (timer) (random money-upper-limit))

6 S7 u  i% k7 j, Z$ ^' k
9 T9 A# j2 u" Y: pask self [do-trust]
1 d% {0 y. ?- x; M;;
先求ij的信任度7 }" N" f; M! d

$ E  P$ P: S9 dif ([trust-ok] of self)2 m, r/ w; w! V
;;
根据ij的信任度来决定是否与j进行交易[
: y% t6 H6 E: f. X+ Y6 _ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
( Q8 b8 F# v$ [- a  k% g! E/ `
1 ~& g1 G& ?7 Y[
  G' J( M2 o4 f5 O) E$ U' x
. r# {$ I, s( V
do-trade
/ \' t, H" U; V
/ N9 U2 W% F0 u( ?! U  V
update-credibility-ijl

. G+ A; h4 U1 |4 J( W' w( q! }% H& r8 l
update-credibility-list  ~0 G3 y% A1 o# z! S/ ?

: m0 u# g8 J& C7 X$ D& S+ {& V6 x  e4 \. y4 h- k0 h5 U* b' X
update-global-reputation-list

! Z- Y" Y+ q5 i& i1 m9 m
/ k& h+ Y9 u9 D9 Bpoll-class
: J9 q# z3 T5 C! o# Z

1 ^9 \( v. w5 H$ f( n& rget-color

9 z. F8 F5 O5 [: r5 P! G. D8 s/ C: @2 q8 v/ t7 p
]]
: c- w" X8 d! G6 [0 A4 |, k4 M5 s" e5 e6 j; W
;;
如果所得的信任度满足条件,则进行交易2 E# k; h" m- m+ I' J3 g

7 _# o" d. Q% d5 t4 g- F[

: |) F' I6 `; f, r' j8 {; `( |' z' s
) ~' c. z1 D7 urt random 360

* }2 ~! B7 X) ^
0 Z/ w  X. I4 i8 Y; c6 X- Sfd 1

0 C/ z' E3 g* ~" K! O' j1 H% `, m) y+ P7 t8 D- f
]

+ E* a. V6 G; Y8 U& g8 I: R2 r
9 W! S& u0 y) E. Q" Z3 S/ d% xend
; \# N) @; M1 n7 X4 P5 h6 y7 ]
# ~' J2 p- U' h% _! V
to do-trust
9 x! n' w+ w- {4 O8 s1 Yset trust-ok False
) ?- g5 p$ X+ J; L. e' _3 ?# M% q% _) A$ s* `
  z6 o2 z* [1 L- y0 `
let max-trade-times 0
2 F8 d- m1 A4 D5 Jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( U9 g0 Z: A& p0 wlet max-trade-money 0
" A' ~: s$ ?2 `$ k8 O: E: b9 vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& Z2 f( w# p0 ]' m5 ~. F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 f( o3 ~# U5 a4 L" n- }! f
3 b' ~7 O- {- g! l, v* P/ r. }

; j4 ~; Y0 {( v2 D" _get-global-proportion
. G! p. j4 K* |; g7 klet trust-value8 ~; F$ m7 l* P) h2 }9 i8 g
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)
0 u, I! q7 V& |+ o" [3 P% P
if(trust-value > trade-trust-value)
5 Y7 f' K/ A2 }2 Z( b$ P2 @[set trust-ok true]5 k1 @  l  n) a
end
4 q4 M9 r" d0 z% ~+ e
9 f1 T) p+ I2 w- g( |to get-global-proportion
; j6 [7 H5 S- S+ B" lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! r+ O, p# j7 F# h+ V/ U
[set global-proportion 0]/ n7 u1 |4 o: d# u
[let i 0
3 E" t6 L' L3 U7 b( D$ k7 k/ _let sum-money 09 f; o7 @. f( Z
while[ i < people]" i' R9 l3 Y* J( T7 [) h
[
5 ~9 D$ k' E# {6 ^% lif( length (item i7 O# a6 _- _% g, B
[trade-record-all] of customer) > 3 )
2 i1 }5 b2 O) [; L4 _# v
[
! @) `. W8 y+ c$ I. K8 r5 vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' ?3 e$ A/ N0 H# f' L" [, r; K
]
# ]& A' W+ G1 C) W]& O! a0 W; {! \2 p8 R3 e1 w6 b
let j 0; P) s# z5 Q: e, [* G/ q
let note 08 W# x  F3 y) ^' k. ^4 s: \
while[ j < people]" _; G, ^( {: }, u0 l% e
[1 S  i% {' ?% w
if( length (item i
& H  d3 U$ ^9 H[trade-record-all] of customer) > 3 )
3 B# }& J3 \/ O8 ^8 G* B
[% @& e3 Q1 Z2 E0 ^  H- M, }, Z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" {$ }$ ^; K8 M2 i4 j/ _
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 T5 s" R# G6 O% f3 V( s6 j. ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' N) u3 q2 R1 d1 B6 F
]
- n4 p' w; c- C7 ]% `]/ y/ [. U& n7 Y* G# K% p8 i
set global-proportion note3 _+ x% F! p; ]
]# o( j, O6 i' S
end# I. ~  X# Q* f- ~/ T5 r; ]' @# w# c% X
  l1 m( g# }  s3 [
to do-trade8 o; [. G9 \$ c0 }
;;
这个过程实际上是给双方作出评价的过程. m# d; s: |8 N9 u- _' m
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
$ H- r3 |1 J; D  a3 E& t0 c$ r; I. Yset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价& b/ a$ n5 ~9 A
set trade-record-current lput(timer) trade-record-current, Y: l3 c1 b* F# |" s+ D$ [! r9 b5 I+ m
;;
评价时间
4 [, I! K' P* @. |' F, |ask myself [
8 Q. r1 h* Z; J+ T0 d$ wupdate-local-reputation/ R/ L+ c2 ?9 V0 }6 `4 W( b
set trade-record-current lput([local-reputation] of myself) trade-record-current
  S3 N' x  o5 a0 D! ?5 J, A) y8 G]; B) F. I2 Q2 r% P9 a& d; Z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ E+ ^' U+ U, v;;
将此次交易的记录加入到trade-record-one+ _" i$ ?+ s8 r3 @8 ]
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' I. l6 I1 C3 g* S5 [  P
let note (item 2 trade-record-current )7 L: [1 B: @! U7 }
set trade-record-current6 A+ v% g& e+ g9 }! c5 Y
(replace-item 2 trade-record-current (item 3 trade-record-current))

, w' l) m$ }/ D, tset trade-record-current
+ `+ x% z% i# n0 E" c(replace-item 3 trade-record-current note)
9 A$ a" P  O1 k3 O& R2 X% |+ N: l* X
' c  c# ~7 i! W& p# _; N1 M

% |; R* J6 g4 I* i% F( dask customer [2 O# h/ I& T2 x
update-local-reputation* m4 m7 _* J6 K" p( G1 E
set trade-record-current, V$ J, V  z  O) X2 V  P/ b9 l0 d
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 [' n! u$ R' l* D
]7 w& ~1 j! H' p, T* E6 \
$ F8 c' D4 N+ E0 j- l8 ~
8 [# N/ S+ \4 @0 @$ y# v8 H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 v0 j: _5 J- H
4 z9 K% W# a1 ^% Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 }% P, c" T, B* R8 F' v
;;
将此次交易的记录加入到customertrade-record-all
0 R% }' ?* j8 o5 ?( h5 X2 O* h% ?end! n/ L. r( ^( t2 P

& E" }5 E% q) ~6 M) ~+ fto update-local-reputation/ D6 ]7 [0 |$ R/ q- q8 f. s
set [trade-record-one-len] of myself length [trade-record-one] of myself
$ h" L, t- H9 k& c1 n
3 _5 b6 ]6 i- @% M
- T$ F+ S5 |7 e% \- c1 ?;;if [trade-record-one-len] of myself > 3

1 s( N- }, N# }8 t" k2 }, Yupdate-neighbor-total
; l. K: `* H- e$ a3 }7 I6 g  ^;;
更新邻居节点的数目,在此进行
, T: y. Y6 p4 g7 [7 N4 flet i 3
% s( m. F$ c& ilet sum-time 0* k3 M* Q- ~8 @; P
while[i < [trade-record-one-len] of myself]
+ R$ s9 l' l3 W5 I+ u# O5 z2 X" b[/ |) L" Q0 x/ `, o! F: n
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* s! ^- ~1 {  U+ w
set i$ n, Q: x2 e# c7 s+ s. t# ]
( i + 1)

8 v) {3 A- y) r' G8 D2 X! s: R]
' I. w4 L+ j6 ^  dlet j 3
& ]; x3 X) n4 u" |* elet sum-money 0
5 h& j3 l+ _% A# x8 r! X. e! _while[j < [trade-record-one-len] of myself]
: m" W# f! e. i! X/ t% ~* t1 T0 G[
8 y' ^* e9 `7 X" X1 S4 D  p7 ^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)1 ?  s. F7 O, I' h
set j0 d$ Y7 x) z3 \  t3 @6 H7 ~
( j + 1)

! }' G5 K- J  X9 r  v% Q( L: X]2 Z" i$ z# N. g8 k
let k 39 w4 R8 b3 R7 A  A4 ?# S9 i! B: @
let power 0
6 `1 H; K. T6 n1 O4 r9 z2 b' ^5 {let local 0
& ^  L% _8 H$ g' ]while [k <[trade-record-one-len] of myself]; ]7 l0 e- ?' X9 a* |% ^) T$ j
[
" A" S" u& j; w0 m: hset 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)
& P- j* i: X  x$ fset k (k + 1)
2 p; ?$ `0 Z% x  G, u  ]* s- b]
+ A, o$ v1 b- q0 m( Iset [local-reputation] of myself (local)
' x% @) U) x! T: M* N3 wend
2 q. ?$ r: `7 ]" C. `/ {& n  y7 ]+ `) O& g
to update-neighbor-total+ X2 r* p3 V2 _! s# V  P3 \7 |; }

" c. c/ i6 v5 ?if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 v& A" G3 X/ g

. y! Z% @& `4 h0 X( W

6 B' Y) h3 U+ [end
  [9 e2 Q3 y$ D0 T6 N; u. Z+ B, ?: A5 ?3 _. Z
to update-credibility-ijl 8 b0 A% D: d  b1 m" p2 [7 G8 C

7 u" ]$ q* m1 U8 }. Q! l;;
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。) f9 I& c% J6 V; D% Y- A' F
let l 0, B  c/ s& e/ H; g# y& K7 P4 I
while[ l < people ]
) q9 Z5 i* |+ ~9 G1 n;;
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
7 n3 H( k1 u8 C1 ^) L3 I+ }9 x3 Z[) Q; J2 @4 C& f
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; H8 C/ n% Z/ w1 H0 @2 p" aif (trade-record-one-j-l-len > 3)
7 l( p7 s1 V5 k6 u8 K7 S[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
" B, Q( i! t1 _let i 3
& J, u* M# E0 o0 f, d; o! llet sum-time 0, z3 H! P; w3 u: l4 }& |
while[i < trade-record-one-len]
( {# P1 U# B3 s! ]9 d[
, Y  E8 A8 j$ }6 oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 }2 ~, v8 W2 W4 w" s1 G5 t7 q- I6 ^  X% wset i4 s9 i$ i( s0 j6 C8 p" y1 q
( i + 1)

: |0 N" I  ]* `+ l( ~- O]7 n  G; t6 g, O( L
let credibility-i-j-l 0
- S" c# K/ `: J1 v;;i
评价(jjl的评价)
5 Y5 t. D$ `0 w5 \$ y9 z2 M& Klet j 3
- A) j4 }; j" x, Dlet k 4
/ K* w* w1 [$ Bwhile[j < trade-record-one-len]
% p  c+ @9 e8 I% S8 M[
* g) ^0 f0 T& J) m+ U' P/ wwhile [((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
1 t: u1 ?8 p$ b. H8 lset 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 y  A4 _. q1 a1 a+ x& l  \( X+ A7 [set j* _4 p! L4 V5 Z% X- W6 I
( j + 1)

/ G1 p* r$ \5 W]
. Y. B! e4 s# N' @+ y6 j1 Rset [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 ))
$ h! a: o; @, J
# f- v1 F& Y* X0 T0 L) j

* ~' j( W* p9 @/ Y2 c0 X5 }' q& hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 ~4 b, f7 H0 w& `+ K* P
;;
及时更新il的评价质量的评价
" e5 p  @! r3 N* gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ U9 c6 W; L" i5 t" Z+ xset l (l + 1)
& i9 t* ]: f7 }" ~( n]
" f: Z+ ?. P& Z% {0 k, jend
2 _& \) W7 v  e4 n/ q4 P! O) y# j1 W( T7 y/ }! M9 S
to update-credibility-list4 v& R4 e% B7 L8 u: v6 H
let i 0
6 A' o; j; J6 w+ Xwhile[i < people]
! h( O2 v) E* N  V" q* C# l3 _- t  u4 s[
! Y) R9 @% E/ g& ]) ]let j 0
8 S+ ^( V4 N3 l# T, |let note 0
# N3 N, G; C. Clet k 0
3 o4 X3 p! T- i5 A;;
计作出过评价的邻居节点的数目
. [; m% \4 r- |. R- fwhile[j < people]! s) q7 \: P7 F; B* L; R
[
  i$ K9 o0 I0 g! }) `+ e: bif (item j( [credibility] of turtle (i + 1)) != -1)7 @  K2 n9 d3 I, i& v2 V
;;
判断是否给本turtle的评价质量做出过评价的节点: @7 Z9 f& i. t6 h# |
[set note (note + item j ([credibility]of turtle (i + 1)))
$ h* D3 ~! y6 u4 Z. }9 Z. N2 p;;*(exp (-(people - 2)))/(people - 2))]
, x8 r$ _0 {+ b1 F. J  r
set k (k + 1)
* r; W" h  h: U; {# b& t  x], n1 g/ v& F+ d; g
set j (j + 1)7 T: P9 N& d' A  [8 z1 x, X
]
' i! a# Q! x3 T/ {2 e7 y- F8 C8 [set note (note *(exp (- (1 / k)))/ k)- ^' w& W: \+ t( X: J
set credibility-list (replace-item i credibility-list note)8 ?9 E5 v3 ~/ M+ v' ^% }/ F9 m, K
set i (i + 1)
7 D0 L, `( O! j]
) _+ s" m  r; r) gend5 p* n8 ?& v. T; R

4 P5 Z! A4 p3 B. E$ Cto update-global-reputation-list6 N5 }1 f( _5 R& N# Y, e
let j 0$ M1 t1 A" O% b& T6 Z
while[j < people]
" p0 y4 m) Z! j2 @[# n; @3 h, t1 P! Y8 S" y( r, W
let new 0. \% Q/ l/ p9 U7 U6 ~
;;
暂存新的一个全局声誉' e  M& z& K5 b, ^" n, P
let i 0
% G+ Y8 i. T' V7 U. Y2 r6 mlet sum-money 0
3 `, p: m. r7 P! z& A4 @let credibility-money 0$ x5 e' `6 o: r- l/ `; V! o
while [i < people]
2 b" ]+ E; g! y/ Y" v[
: s& J. H5 A$ e1 Y) qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* r0 m# y8 Y( i+ F9 a1 o( n2 c" Y+ Hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" d! i. C- `0 {2 I* P8 N  E
set i (i + 1)
; d( [( E* X* K& x5 r]
$ m3 `: V7 C) W7 n" klet k 0  @- h9 _8 C6 R" k1 `
let new1 0" d! x6 Q3 o- o% W5 d1 R) G
while [k < people]
9 W4 E* L% t( |  D7 `/ j2 H[
) F5 m! {8 ~! r8 eset 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 i% W! l  M5 h% F0 P
set k (k + 1)  E; d% k$ G: `7 Y, N! Y3 D
]
4 }6 C+ T3 F% j  Z" p; yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # M0 o- Y; M  Z
set global-reputation-list (replace-item j global-reputation-list new)  a4 m, `) s! K  v* g' S
set j (j + 1)
8 n# z' j, Z! k]' E" s3 V+ R! S" F  H6 s
end
3 _4 {* H4 C9 a# f4 f. e2 H! a' }2 k4 s$ n; Y9 ]
+ f3 h2 {! I1 i0 m' g

  Q/ R" S# _$ J( B, A9 D9 bto get-color
. Z# j+ @5 O! j9 j
5 k8 N9 p2 b$ [9 w. W8 V3 T* @set color blue
$ P4 F: H1 Q+ |  M$ |9 x
end
3 C6 G7 S1 Q: u1 T: Y
7 w& K. K( X  q' I0 ]7 dto poll-class
/ b; L$ i4 l! T7 H. N; \end
: I" k7 ?' p; U. `
+ V5 a  ^( U6 Q3 B! _: ~$ W; w: Gto setup-plot1
0 P* ~" ^% |* U( W. Y4 O% N. |, p/ y- w3 Y+ U- U
set-current-plot "Trends-of-Local-reputation"
1 [# |- U3 z& B
" g& V3 v) p2 @6 h, w  X  e
set-plot-x-range 0 xmax

2 I/ {* V: d6 h5 s, z' p  C5 W1 W; n9 j1 u4 _' o; P; ^
set-plot-y-range 0.0 ymax
' h3 D, W- C4 d$ l& i; H3 J
end3 s6 c; j! M3 N

  Y& I" i3 q: q# ?( i7 \; y* [8 @9 Vto setup-plot2
* t8 c( y& L, h+ }& k1 v# z! ^8 O4 q
set-current-plot "Trends-of-global-reputation"
0 v8 d/ Y) r) r* R* H2 @  d* L
0 q0 h2 ^( b* Q7 @2 l
set-plot-x-range 0 xmax
1 Y. ~$ G  i7 W

* x5 `' I2 U; C* c1 ~4 h( R% Zset-plot-y-range 0.0 ymax

% @8 k5 q3 [8 Q. dend
. W! i) q. q' F& U
6 C7 D/ A& d7 P' Mto setup-plot3
4 }$ c" d2 b" w" Q9 e) \2 s2 k9 q; ]( w% z, e# R' s- ?6 l
set-current-plot "Trends-of-credibility"
9 _7 {% m2 M( v7 r0 W  ?
" r! }' X) G; B, \3 b3 v
set-plot-x-range 0 xmax

! F. S, F7 `) c; U: x3 O6 U, [! S" A! y' A
set-plot-y-range 0.0 ymax

, u/ I) _3 J7 o: K& b0 Q2 z% hend/ P4 p* E+ j: L# w- n
# r, `. S; x# Y! @" H
to do-plots* _2 L$ t9 E4 d- K- f1 o8 b
set-current-plot "Trends-of-Local-reputation"* K) [1 W* \; A0 `) S
set-current-plot-pen "Honest service"( [8 t4 v" z1 p% e0 P
end8 D/ p- r- }' A- _+ T7 W0 n& k
# c6 x6 m8 F4 u8 u! H; K
[ 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.% Y; |! g8 J6 j( _% c
: _& Y1 U( B, j- r: G
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, 2025-12-8 00:01 , Processed in 0.024453 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