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: 17984|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:/ k: b7 U, p7 x! j5 c8 L/ x- |
to do-business + j7 A1 H# d3 n4 m+ a% G
rt random 360% W9 B) S- Q5 w6 X6 i! a# X& D- F
fd 18 l% I, S/ M2 {& N
ifelse(other turtles-here != nobody)[
: D+ V. S! W' N9 O; m   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.
! C. ~. z$ ^. t- B   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
1 Q9 p' z: ]5 ~7 _0 ~, x   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer/ ?7 x# A! |  z
   set [trade-record-one-len] of self length [trade-record-one] of self8 u% l- ^/ C3 S  G# g9 h
   set trade-record-current( list (timer) (random money-upper-limit))
1 a3 G4 P6 X: i( T6 m( a2 m
4 s  b8 a% [2 A4 E4 E问题的提示如下:; r( ?; Q6 J6 q
* ]8 X2 j6 i) g" T+ }& X9 M3 q: M
error while turtle 50 running OF in procedure DO-BUSINESS9 y& a' ]- s+ K5 S1 n' a
  called by procedure GO2 \9 [2 Y8 I6 a
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
% i* w* D1 m9 ?1 m/ q, I
(halted running of go)
" @1 T9 R# X2 M6 h0 w( k/ R1 F: K% Z. 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~~
$ b0 N3 `6 r/ j. S6 X& S9 t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
7 z+ G  b$ B( t# R/ v' Y6 q, uglobals[
1 Y* _8 z6 e- H0 Axmax+ ?; ?: F1 E$ L: f# j
ymax* S, P& H/ S* h
global-reputation-list
6 o/ t# B: j- c  L" Q+ k, M* M) H4 h( K6 c' ?- l# u+ z& c
;;
每一个turtle的全局声誉都存在此LIST
- A5 J, j9 d/ V9 ~+ rcredibility-list
) {2 R' W7 K1 p! F' l) r& g) I- [;;
每一个turtle的评价可信度
3 e# c( Z  M% ~( w1 z6 z8 t6 Dhonest-service
* Z# k; w: J) {. e; U! Funhonest-service9 a2 h$ G& }3 v- I% Y! \
oscillation
# X8 _. ?3 e' l2 [& f; |6 B) Krand-dynamic
) S7 D, K& M) \& j. ]# ~& Y( i]3 |  T' _" \% W( v/ n+ i1 c  q

( M5 {# {; d  Q, J8 t' Dturtles-own[: v6 M. V# o# C( Y
trade-record-all
, Y7 @, D& X6 p; E8 K+ p4 y, B) H: ^;;a list of lists,
trade-record-one组成8 U8 A0 `$ I2 y3 v* h
trade-record-one
# t6 h+ [# b* c$ ~;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录( g- u- ]7 X8 m: U2 E; W. v/ N& I
4 P  O+ D: i; _; m8 `# @2 Q
;;[
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]]5 l% N1 [/ k  k2 r" q. u/ V1 E7 M
trade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]# A4 J' E* I7 m* J% h+ G
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
# N7 K2 ^3 ]2 _3 Qneighbor-total; |' t  s6 H1 o+ {% f8 [3 \
;;
记录该turtle的邻居节点的数目
) r8 ?: q! j  K9 @; N$ O1 }  N6 D) Utrade-time
  E" E) e/ H  x8 K: q;;
当前发生交易的turtle的交易时间
: |4 O% Q4 ]' h' qappraise-give
6 @- r1 Y. C, \+ K6 @/ o;;
当前发生交易时给出的评价
3 h# n0 P" k: g0 R3 yappraise-receive
: D5 c5 Q) y" V/ V$ x;;
当前发生交易时收到的评价
( n) F5 Y! N0 [appraise-time
4 t2 E* b0 `* H5 s- r;;
当前发生交易时的评价时间
6 F2 f: {" l& w9 blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ T( e2 p+ y' b0 D. p. R  i& ~trade-times-total
: {3 q: u4 E/ S$ D3 M/ c;;
与当前turtle的交易总次数; G  V% G# z) d! ?* \, R# N
trade-money-total
( T9 G; u0 [9 s6 W8 M- T;;
与当前turtle的交易总金额2 M0 J6 N  p, ]" ]6 \# \
local-reputation
2 c1 @+ y- N$ p/ H" }global-reputation
$ c% V9 R! X1 j% w. J; N8 L/ S; Jcredibility
1 S% ~4 N" }: W. Q. k;;
评价可信度,每次交易后都需要更新* O" Z* G  r0 l6 [" ^+ a. \8 P$ ^
credibility-all* `* x# j6 L! p& \
;;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
' |4 D7 H& Q& L1 ~2 T5 T8 w# Z! P2 G& E' l
;;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
) ^, i* r% [4 J8 F/ scredibility-one
8 q: P8 _- ]& D( Z: E;;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
& B- x5 e) K$ X1 Q7 R: x9 dglobal-proportion: M, f3 \1 M/ _- ~. h( h, }
customer
6 X, |2 Y4 ?" Y( G7 j; }7 f3 }customer-no
2 X3 w5 v1 q% Z8 Gtrust-ok
, g- G' b  e3 Z( Z: W- |1 Ptrade-record-one-len;;trade-record-one的长度
3 b1 {2 Q( {( v8 q; n]( w! @/ V2 }( S7 o$ {1 L/ ^( O

: ?2 P! \( @0 [  x; y;;setup procedure
3 z. y# @5 n' Z( y# L6 J) J8 _. n& ~/ O# f6 u2 ^# f! }
to setup
7 |: u$ M$ M4 U( h0 W
2 n6 |* \! J2 z  b8 G* o: N9 F8 |; ~ca
3 X2 ]$ v: k" [9 \

( o" |4 O" ^  _initialize-settings
% w: L5 P! w1 c8 _
. B7 |$ I6 f8 Z) K, O( t& O' m* C
crt people [setup-turtles]
  o7 K- X( i) z# G$ q* J" T- N
9 N' j  H" {% }2 ?
reset-timer
2 ]8 Y& a9 U+ @* Y
  F& c4 h% h' O+ Y) T3 o1 M
poll-class
, s) w1 o5 S+ b( X

/ g$ D, O7 f( n* {9 Y# Qsetup-plots
6 I) {  j2 z# {( N' u

& I3 `% H: F: R1 e/ V( K. rdo-plots
" j$ f4 k9 |* B! O# ]/ z
end
' Y! K% G9 q# M! I6 o2 a! T. M4 ^& s) a. g, x3 K% e1 q
to initialize-settings
# a2 r3 q0 h/ y
$ L) c3 p+ `$ W" M  D" Hset global-reputation-list []
0 y" X( v- h4 a$ q3 z6 \& [0 P

# J3 O2 {. F0 M% [1 z) d& uset credibility-list n-values people [0.5]

6 W7 k3 N& p) W6 r( J6 O9 s  @9 D6 F: r* n6 C+ x# S
set honest-service 0

, I# k' A' _1 A
. L5 `, ~/ n% ]: @" zset unhonest-service 0

2 m  y) h% Z" Q
' X( C  l8 y8 _2 f# q. Kset oscillation 0
1 k* G6 [: l2 J  G. U

( p) j" |) ~/ L. {; ]- x$ Z& x* hset rand-dynamic 0
7 M) s3 h9 P5 ?) L1 |
end  A. A6 r4 X/ [, {% f/ G

9 g# ^1 K/ G) U; D( pto setup-turtles
6 h9 F$ l* M4 tset shape "person"
. F# m( ]; j; X, c5 C1 y# Ysetxy random-xcor random-ycor
. k! j1 s) A9 b% ^. q" S0 Q+ bset trade-record-one []8 i( I* O( w3 ?2 d, R2 g
9 ^/ n* u4 ~+ l
set trade-record-all n-values people [(list (? + 1) 0 0)] ( @, ?6 A" g& W7 S, f
, ?  ~3 E9 y( i2 n; z
set trade-record-current []
$ u' U3 ^( l, ~! p5 U; J" bset credibility-receive []* A0 Q+ V7 b9 H; c* n9 u# S" P5 b; m0 Y
set local-reputation 0.5
+ z! T1 v# F# H* @4 J. ]- g: `8 `. @set neighbor-total 0% E  s- b' L; t1 p+ T5 q9 w+ i3 U
set trade-times-total 0
# Y, p8 Q& J* N5 a( {' Fset trade-money-total 0) |, h* B6 e/ V; u5 L0 f
set customer nobody% k7 f( a( x. o0 T# v2 b
set credibility-all n-values people [creat-credibility]
1 X$ t: }9 F6 M( H! x% ^6 Iset credibility n-values people [-1]3 f" ?# e' M5 @: z2 |6 O
get-color
5 [9 y' l/ f' f6 U. e* A/ u: v

9 }: y  C' K1 _. J) p. ~9 kend
/ K' I6 _, Z) V
- K: a9 r6 p9 M" b4 a& j' Q) d8 i; f, kto-report creat-credibility- w3 I3 a4 a3 u6 d
report n-values people [0.5]- D9 }7 v5 E5 m# m
end: D7 F+ J9 ?: w; g. @8 u. s0 X
5 W4 A& ?4 S5 e0 L1 _" g8 c4 M% E
to setup-plots
& v$ Y0 n6 `, D; D. D( c
- H1 i+ y2 i+ X( ^set xmax 30

1 d% }+ O' ~5 h1 y, P
3 Z9 }. N! t  M& Yset ymax 1.0

+ g9 O& S3 t6 t; I* X* Y5 T5 s* |  h* N. A; j& Z
clear-all-plots
' E% @- k: ]' x
1 t% `- y: t. A$ G& i; `1 G5 A( U0 p
setup-plot1
% }: F8 U4 {( W0 m
. O& j' E) u& `7 X
setup-plot2
& ?3 Q: e# B, N, |( M; @
" }1 x8 p/ }1 P4 F/ ?
setup-plot3

+ K: e8 X, h- n1 W" Xend
' \) n8 p  l% V$ x) ?9 a4 x: a9 e2 A) Z/ ^0 H* N9 r5 s+ L
;;run time procedures8 r5 U& w8 `4 q. Z

8 e/ |% ^5 I( N6 Yto go3 H5 q, {) e; }

- V* I% t2 f) |5 F5 w3 Lask turtles [do-business]
% c- {1 Y% k+ L) E
end
9 ^9 s6 W( ^# H/ r! A6 ?/ F# F: X6 L
to do-business
* O$ i1 [0 _' s' d4 }

% p1 T$ w! E, [2 c" m! S6 F9 ]  b, f2 O6 T4 |
rt random 360
+ O4 P; A$ _7 \. p: |

  o8 v) E' K- {8 L) |& Rfd 1
1 x, y8 D4 E* e
# Q- x) \( I& R: k
ifelse(other turtles-here != nobody)[

- z8 ]0 x: p! f& D/ ~8 k4 |9 G! T- h+ W! u4 o* Q. P
set customer one-of other turtles-here

; `$ I$ w' b5 [3 h
  `0 Q( F! p! e1 s6 x0 };; set [customer] of customer myself

7 G. w3 D0 p+ H' R5 b  ]( j8 d5 i0 O/ o
set [trade-record-one] of self item (([who] of customer) - 1)4 E7 n3 v. l& i; N; i& w* w
[trade-record-all]of self
2 k7 E% @$ R3 k/ F6 M! h. {;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 p5 I$ G; j: L! Z2 s( P& t

: ^5 U) X) a5 a, F0 {+ v: s; tset [trade-record-one] of customer item (([who] of self) - 1)
6 y' N/ ?8 e2 ?/ {. Z# {7 ?[trade-record-all]of customer
& D0 T! q5 o6 S& ^4 j! x
& w! T: Z) Z  f2 n
set [trade-record-one-len] of self length [trade-record-one] of self

/ K4 [/ c7 I* y% `7 u; k, {# m0 O$ h7 Y
# b/ B: M% E( b) T) n; u/ d+ Yset trade-record-current( list (timer) (random money-upper-limit))

8 A, }5 Z4 t' p! e5 ^) B* P% J$ p& p
0 L: L5 K% R1 j( {ask self [do-trust]
0 C  p4 ?/ o- |$ r5 p0 s;;
先求ij的信任度2 Q. A; B1 |4 _

5 t8 i/ U5 ^/ Aif ([trust-ok] of self)4 B9 ~, u; p! |& ?$ O0 x4 C
;;
根据ij的信任度来决定是否与j进行交易[
8 G" O5 F9 ~6 ?6 `$ ]ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
2 s; R6 h) Y8 g, I" E2 b4 d& e2 ~
" u3 |$ d  ~  ~8 L[
8 ]/ ^1 D$ Z( Z( w' q( z
0 Y9 V4 W* N- L( T* G! |5 P
do-trade
1 i  [; G% S3 Y5 r
: |8 p6 F8 U$ M! g
update-credibility-ijl
  l' ?; _. `& @

+ |, Y& Z" g6 a3 l# h0 Kupdate-credibility-list( m8 \) D  m; C5 P: w8 }% g

1 ^0 S& |; l/ y- K- I# x2 }! L' {: q& U: J
update-global-reputation-list
0 b$ K  M# U8 }

1 C" T% u1 b8 E5 E/ lpoll-class

, l1 s; M9 F% f" G! B* i
2 l3 }# Q( P# N' w8 w. ^* e. hget-color

: y6 h( [: b6 Q4 I
5 o& g  n4 s$ D& u]]
. M, X8 B, I6 e9 E. s3 \
- t, ~3 p6 I# l" X2 r& W;;
如果所得的信任度满足条件,则进行交易' d' Z0 H8 h( H/ i1 |

' Z- |1 W0 \# ^# s. w1 W[

+ S+ R! g' R, L  o/ `8 ^7 @/ c0 {3 o2 k: N: M' B& K' I
rt random 360

5 h- Z, @! O4 h: v" c8 d' ^: _  j+ v; q
fd 1

5 M6 z% h9 [7 R" `4 a( V9 K# g- L' r7 R' i* r2 e
]
5 L  U+ T9 ]( g0 V
& t6 P' A* K3 I9 n1 v/ X2 h  Y
end

+ t7 s1 r" ]' ], R
2 A, M; s* B  N  C7 V4 hto do-trust , J# N( A# {: k4 c0 d" t
set trust-ok False+ Y# x  ]- f" H& ~

8 E0 \. k3 I) m; [; s9 @

9 Z6 w" n9 F0 Y4 ylet max-trade-times 0% f$ [. C( E9 b4 H& h- x
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) C0 Z( [6 t& @5 a/ l& clet max-trade-money 0; v6 y, n2 w1 P- E5 z$ w) h
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) S1 d- ^$ u0 d3 ]% ^& w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); }3 M; f- J6 |9 ]
% S4 C) I/ ]8 u

2 n" D3 e* W2 D. X* o- Cget-global-proportion
1 Z/ J1 S3 Q8 L( `let trust-value
' ]5 }( j6 h8 r* i- qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
  l- M+ M7 @) D" r
if(trust-value > trade-trust-value)
0 z6 C; K& l: d0 j[set trust-ok true]
/ T- j: Q3 }/ Q  I$ }end
; o" \  s7 ~  e+ q$ r% I" {! x6 g/ E3 P8 Y
to get-global-proportion
: |/ @7 j( {8 M- E3 M7 gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 i8 x: l! s! ^: D- {* N
[set global-proportion 0]6 a% o8 t7 D# @
[let i 0
2 O: L0 }% f% J/ glet sum-money 0
& `1 h+ B% x9 r( k0 P  B4 Twhile[ i < people]
+ N) F, Z, x9 w& }4 R[
4 z- ]/ o* Q6 V4 Z, f4 xif( length (item i
- b* z! A$ p( N5 y& i[trade-record-all] of customer) > 3 )

3 y! `! ]8 S! m[
- Z' m( K9 O) f! S; Jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 N9 i8 m' h- w: C: U
]
+ P, k5 Y- v0 e3 ^/ u0 _]2 E4 e& o  x( s7 q7 k/ l
let j 0
* E% O% d7 U, K& {! z. M9 Klet note 0/ c2 B- P! H, ~4 |, }
while[ j < people]
6 o" l1 w9 T+ S[
4 ]8 C9 P' [) k& Z) O/ Kif( length (item i
" o3 ^8 k% ?& p$ g[trade-record-all] of customer) > 3 )
9 [  k  E- `$ H/ v$ ^
[+ E* N( a' _) ?: G$ R/ V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" w) Y& Z: `) P) `1 Z& W[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ g% D. B% K$ C3 X7 q6 o+ k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& m" W& u1 X7 W! y4 d8 S& @! P]& s* b4 }+ M- |- u4 s
]
3 [3 m) s4 J- ?( v$ ]set global-proportion note6 I# Y1 o! ^  N: l  v* `+ L# A
]! y% a& L7 q  c/ v5 G* ?5 W
end
9 d6 C% v2 X4 v, M
$ i# C1 V# h7 e* T3 i. R4 eto do-trade
, N( o3 ^1 `5 J# D7 ]/ f: {1 g0 \;;
这个过程实际上是给双方作出评价的过程
8 c' t* |' x' ?$ kset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价* g; D5 U6 ^' n/ j8 p" q7 T
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
# Y( q$ R7 ]' P& n6 |$ ^- s. oset trade-record-current lput(timer) trade-record-current4 `& m* s6 F  R6 H, ~
;;
评价时间, m( h. m4 q" h, g. r
ask myself [
& B: E7 F( i' F, `update-local-reputation
7 V$ b' A$ R+ i4 Z: D' B6 N6 iset trade-record-current lput([local-reputation] of myself) trade-record-current
5 Y$ R+ }% c# ?. b* l]
9 k' X0 _0 M1 M! y2 e- oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ r' R5 I9 V9 e  v4 J
;;
将此次交易的记录加入到trade-record-one
( k; [0 t- x$ A0 Z7 Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( A) W) b! j6 l( n1 ^( A
let note (item 2 trade-record-current )" {% _) U# h+ B% E. z6 Y
set trade-record-current
: q/ M4 a3 Y# K# b! p(replace-item 2 trade-record-current (item 3 trade-record-current))

' f1 L1 ]/ ~% D# V" w; |$ T0 a5 ?  R% |& }set trade-record-current
7 u$ O( ?" c& k9 g) @(replace-item 3 trade-record-current note)
) W( D9 f( a! H5 @' @- G6 x# |& R5 \- q( T& c" L  X9 Z7 b3 y

( g% o3 m  ?9 `ask customer [
$ I# d8 n% ~8 r1 Z/ Kupdate-local-reputation3 ]; Q& U: C, A' _, Q7 `% f
set trade-record-current
1 w$ s$ ]7 t8 Z) C(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 K2 Q$ m" ]- p
]( o3 p- Z8 F) W. K6 @
& t* g0 H0 T2 e! L7 m- `

9 [2 {1 B( u: e- I9 s, K2 V+ uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" j4 y) t1 q1 i2 Q2 Y( i

/ @; w% ^, b- L4 k2 {4 x# fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ F, Q2 T7 @, D# G- E; ?5 Z;;
将此次交易的记录加入到customertrade-record-all
) e" \) n5 L9 [  Nend2 I/ V( Z5 g3 I5 T
$ E0 W5 L+ j: Y- ], ]$ \
to update-local-reputation2 ?0 g4 p: ?. Q% }6 g
set [trade-record-one-len] of myself length [trade-record-one] of myself- e% h; g7 z6 Y( c; ?9 j! W( ^

* K. M2 _+ a0 X. {8 o4 G
# V: ^6 }' a) N* i;;if [trade-record-one-len] of myself > 3

1 [1 L% N$ N9 Y0 u0 mupdate-neighbor-total
. M" q% O/ n8 A1 s1 P;;
更新邻居节点的数目,在此进行% ~$ X, C5 c8 V( e* p
let i 3( `: O! l7 q7 d0 u
let sum-time 0
+ p# h7 k3 p; @6 J6 ~while[i < [trade-record-one-len] of myself]
& H$ q& N5 M6 n+ a[
% \" |" i9 F# Z, C; N4 \set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 L) u' _) c0 @set i7 L3 t, [$ c. ^- i6 V
( i + 1)

1 R2 N9 z$ V# g! Q" z2 _: h5 F]
  D7 t7 q6 D: K/ C8 A+ P, Vlet j 3! P' R0 l; _. x2 J5 t
let sum-money 0
: o1 [! a: \. Owhile[j < [trade-record-one-len] of myself]* V8 N' y/ J4 `8 S, J1 _6 K/ a' `
[
, J( F; R8 R+ rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)4 e" f" p, c/ a  I& Y
set j; k* y  Z( K) e7 Y5 d! U
( j + 1)
8 r9 g1 x) z7 Q: Q# V$ a
]& }0 l4 O, b  C) @# }1 W. U) O/ K
let k 37 D" \" L9 Z  i" ~+ f
let power 0
- T* j$ k$ i1 c$ Z8 ]; Zlet local 0
' |9 L5 B4 t3 Z* vwhile [k <[trade-record-one-len] of myself]+ `) w# m7 Z5 Y2 r' `0 w2 a9 a
[6 d/ _& R: Y2 g. V, p
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money)
% ^9 U6 b, A& ]/ J$ C$ V: e) c: ]& qset k (k + 1)* T, D( c( M  I; T: ?
]1 {* [% v5 @+ e: S9 C4 \
set [local-reputation] of myself (local)
9 s9 T) X$ k- w# h' H0 V& i6 hend% g8 m- M: |8 B* D9 P% ~

) U1 H3 `! `- R/ Kto update-neighbor-total
1 H: u5 A, w8 t% ]- c- i# O9 C& a0 \* T% {/ o
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" m9 l) r7 Z6 v7 b7 r) r& r! m- d5 I
7 a$ J3 R: v' ?7 X/ K3 J5 f4 S4 F2 A

9 p% l' ^( L# x* f5 i8 N9 Pend- g: J) N6 c+ D, J' y

" F6 n" m9 d5 Z  I! k9 t7 y# a+ wto update-credibility-ijl
; v. q/ {( {0 U
/ f$ D0 v$ a' t1 r- `4 `;;
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。9 B7 [# o$ T# S0 X1 X/ N2 B+ o
let l 0
" \* q# e/ E$ L) M1 Uwhile[ l < people ]% m2 t3 a4 s5 E# a5 m
;;
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
2 d4 F' b. [- G# M$ O[
. w+ e- l& ~3 W# P) D  xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 ?9 H; u& e+ [) W  o. y! q( Mif (trade-record-one-j-l-len > 3), }5 x/ O1 C' X2 {4 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-one0 ~+ _8 O  v! R9 L6 o. p
let i 3
! S) |5 @) W7 P) D: i) E- S' Mlet sum-time 0# y; \- j/ u+ j
while[i < trade-record-one-len]
2 t. t! P2 w+ j' i, l1 B[+ }$ _2 `' |- B, k5 M- H7 k
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 B+ H, U# J% T+ A0 T! z
set i
1 C8 y( W/ N5 O# {2 y0 O. U( i + 1)

% t( t( N3 J2 f) O; d4 a; b- f]( P. y( S: k) u- z* X# s% ]. }' {# N
let credibility-i-j-l 0# m, M9 r6 m% k
;;i
评价(jjl的评价)
1 ]  q/ D0 N+ h( a: V2 ^let j 3/ B" }7 S/ _& U1 r
let k 47 p; @; a" V/ X& N+ ^  R
while[j < trade-record-one-len]
: e- Q- G$ `7 N5 a  C# ^! `. x[
* R* C0 g$ m- o1 cwhile [((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5 v6 a& }, a2 t6 N, f% e
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)
; |: f9 G) O' }- x0 T8 l( h% Z) Bset j0 y9 ^( Y* z. L, Y# a1 X
( j + 1)

: D% b- ^/ C; G+ p]% K' ?3 l1 x7 ~" P) p
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 ))+ L2 }3 h/ M6 F- l0 \
! ]4 U4 b2 k* u  w: m) h+ e

! o" u& u$ b! N1 m1 }* qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% O, J$ d+ d8 D;;
及时更新il的评价质量的评价7 `$ O% @  ?; W
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 C. W! W3 S! S. b& Y5 S2 ?
set l (l + 1)
- _! Y) P" r8 U, s5 w' P1 B# `]
$ f3 ~+ k$ @; g7 xend
! \+ f% O  J' P
: P& R% b! K! l: Lto update-credibility-list
2 T5 _/ A4 g8 W) blet i 0
9 ^  I" r& _  l2 bwhile[i < people]% o2 ~6 w1 K7 O
[+ ~# }1 t: ]) o
let j 0. e8 ?. @1 ~( J$ }
let note 0! J1 I, |% ]! R. K
let k 0
# T2 E' @& Z9 H;;
计作出过评价的邻居节点的数目
' B; U' }' K( I+ A4 \4 zwhile[j < people]. ?/ l' r8 r! c! y3 A$ j
[& _5 M% w: p0 p; o2 k3 q( R
if (item j( [credibility] of turtle (i + 1)) != -1)
$ {# U9 y% z* [4 r# Q7 [, T2 Y;;
判断是否给本turtle的评价质量做出过评价的节点5 ~" @4 o& J0 `, d( F$ I" ]
[set note (note + item j ([credibility]of turtle (i + 1))), ~9 V3 A' [0 b7 a( K
;;*(exp (-(people - 2)))/(people - 2))]
9 f" _( x% d1 ?' Y
set k (k + 1)
! I4 y3 l7 q  G]' Z2 X2 U/ X9 j- Q$ f$ _8 w/ g
set j (j + 1)0 i: L0 e/ u- }& N* @
]# O/ v& N" C1 f3 z& m( q  i& }- g# ]
set note (note *(exp (- (1 / k)))/ k)
* o# P6 F) i: o- b  T" `set credibility-list (replace-item i credibility-list note)
4 y. B/ C1 y1 u. ?set i (i + 1)# q6 N5 }+ u8 r$ V/ O1 \* |
]
5 j5 e7 ?( J3 f! gend
5 o( i# _; r4 p# h) C; k5 S
9 i% ~! j9 i. zto update-global-reputation-list7 V8 j+ l) p! w5 j( t: s
let j 0+ G! @. o, A7 d0 [7 p" Y1 `; ]
while[j < people]
! e8 V4 \! f- t1 o1 \; c[
, ]# n6 q! l' [8 P9 q; S$ Ilet new 0
( I- b( ?8 K/ A2 y$ q;;
暂存新的一个全局声誉; [9 K5 T2 y! |9 ]6 g
let i 0
* k$ k6 Y9 w1 _: c( f( vlet sum-money 0' A+ U( b' j- \6 w& B
let credibility-money 00 ^; M  d- R2 t( f; b- l  ]
while [i < people]
+ ~- C# p4 h" S4 c5 U4 c[
! {- S% c7 o1 P  M" Eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 y3 T5 O$ C  I/ y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, V0 B, O, a/ fset i (i + 1)
6 W1 N% B& m% h: l9 d]( Y$ b0 J1 h" l1 k% o' b7 v, A9 p7 i
let k 0+ ~8 r, p$ f; L( @7 h. n6 Y
let new1 0
% h9 N4 w4 l+ `3 L6 S; ~0 s2 l) cwhile [k < people]
! \$ _8 o0 y& H7 l0 p9 i[
2 m: k$ ~$ K3 `( [! j# _9 dset 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)" ]5 z4 o* o, `# G! c
set k (k + 1)3 D. v9 b* H0 I( Z  Z  l8 d; S
]
% v, M& u6 S) ^2 C2 Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) u7 o5 F- {! `1 x! p6 |: x& g$ gset global-reputation-list (replace-item j global-reputation-list new)
" I+ W+ v3 x* R; ~( S: G8 cset j (j + 1)2 [7 l& J3 T9 W7 e: M- N
]9 M% _( D) |  s
end# J, s% L9 ]! K
" L" H! S' ^& E3 i

! ]/ g! q4 H( X' q% Z8 k2 I9 J& R4 a' c' q
to get-color2 {" F! X# w7 V

4 B7 P! K1 O4 d3 s0 iset color blue
3 X/ F; ^) z) ^2 f  f* T7 ^  p
end
' V% T; {9 i3 [4 p, e8 z. h5 U3 x4 D9 h: s
to poll-class* T7 j9 m! }$ B# o5 A6 ~6 t( ~* T
end
) X3 h4 g8 b& G+ m& Q& L; A
, r" W2 X- }1 [% g1 x& ~to setup-plot19 A: M4 ^& E6 c2 b+ i
6 s+ ^# p: ~/ r! _1 D; r  }% [& ]
set-current-plot "Trends-of-Local-reputation"
/ }  O8 I- G% x9 N
9 k0 q7 n0 h# N6 t
set-plot-x-range 0 xmax

0 X4 o; }1 L) u$ ~
7 J3 h6 w% p8 B# G1 d; ]6 Zset-plot-y-range 0.0 ymax

" a0 b6 B/ O( F/ w" Y* B1 aend
1 f/ j, Y# @- w  c6 F8 {6 d3 H/ I- s# Y9 Y3 x
to setup-plot2
" I% o. n% N; a; s# t
) }% U# N# `$ D% P  D* o( K$ xset-current-plot "Trends-of-global-reputation"
2 [$ ]% s) E+ _+ N5 ~# C- l
( P# u, |9 \0 z- T9 N+ G9 m, S+ M1 R
set-plot-x-range 0 xmax

, L$ }3 z$ T2 R# t+ j0 F2 s* ^7 V3 O, y2 {* A: I5 y
set-plot-y-range 0.0 ymax
! z9 M2 J" g1 s' G' i; S* y
end
/ a5 o$ q* U) A: v' b# M
3 J5 G  L- N2 p# i$ ^" S+ N5 {- e; k- uto setup-plot3
1 x* f2 a! W% ~/ A0 o
& ~$ B  z+ a2 Uset-current-plot "Trends-of-credibility"
. k; r3 j  n" o7 q/ O# R7 `( E

5 e  g" v+ ]5 k3 uset-plot-x-range 0 xmax
) s% M0 r8 M* \, Q" @3 g3 t

' z! H! h; X2 W, _# j" }set-plot-y-range 0.0 ymax
/ I) Q, i# X) S1 F; X9 e3 A; _
end
0 [% }% r! C" A1 x+ i8 j' o5 ~5 z# {- s; ~2 o0 U
to do-plots" r* K: y* e3 X4 }3 D
set-current-plot "Trends-of-Local-reputation"' q- o9 \' m& l
set-current-plot-pen "Honest service"- s% ?  }7 z; n" t+ A2 \
end4 J% Q+ u0 P3 m. K

; x% ~  l* O5 \' H[ 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.8 w$ A' w* ~& |' ~2 j
* P- r4 h* N3 \( R# N& M% B
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, 2026-8-30 10:07 , Processed in 0.021161 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