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: 16491|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:
. D& K* ^: F( j- [/ V! `to do-business
# R; t2 {# C! f' E" o rt random 360
8 W+ l2 Z9 s9 g' ] fd 1
! B/ S9 l) W" g, k6 b ifelse(other turtles-here != nobody)[
9 H! D& `/ u8 S# Z& H   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.
- H% K8 y! A; U   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
7 w; F$ k5 \0 K" O   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer+ g" [" m! j) a
   set [trade-record-one-len] of self length [trade-record-one] of self
1 I9 j! Y2 y" Q   set trade-record-current( list (timer) (random money-upper-limit))+ T: R' Q3 Q; D0 S
! e% n, P9 c5 H1 ^5 ?
问题的提示如下:
0 J7 \) v8 k4 e1 j) J! {. I  P9 n3 Z, ~/ S
error while turtle 50 running OF in procedure DO-BUSINESS; a- E0 o) B+ M
  called by procedure GO: m" |# F# S* o* U8 I- R$ w
OF expected input to be a turtle agentset or turtle but got NOBODY instead.. B8 [5 B. @# v& a" Q) Y
(halted running of go)
4 m) A0 l. g9 w( P* g9 }% ?- K) ~' N/ [6 T+ l9 R
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~~
, |" i* f' h, e4 R0 p" D# N1 M  H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* P: i& G* Q+ d. K* V
globals[
! @" [  j( d. N! Z; f$ A8 P0 Mxmax1 }/ p  Z) ]. E
ymax
0 a* Q0 d, m1 Lglobal-reputation-list( x1 e/ {5 C9 H6 g# O
1 f* w) |8 j8 k( l/ u7 T+ j4 \# E
;;
每一个turtle的全局声誉都存在此LIST2 o/ K' C% ~) F( N" R! o. O8 N
credibility-list! y( K' I: D* L$ R) I" y2 n
;;
每一个turtle的评价可信度( b+ r. R9 I/ d- p2 n& m
honest-service
+ G* F; G3 Y& Q  Punhonest-service$ V" m: F7 }" R
oscillation8 V4 F( |( D+ g) R
rand-dynamic4 `, `( w. q- ]# P* r& n% k
]
( o; d5 n9 h% u; D. U
  y* x( v1 M$ ^) I' z0 o# u/ Oturtles-own[- {: Z7 G2 X/ C% n' Z
trade-record-all3 Z/ C7 t; y( n2 E9 ]$ r# P
;;a list of lists,
trade-record-one组成* Q4 D& |" m+ h* C0 a
trade-record-one
7 m! ]: H6 f; S# v) d;;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& v3 m( G5 ]) J2 y, E- @. b: j
) M6 d2 K# _5 V# d5 h;;[
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]]8 C6 @) d& Y& J6 p2 S9 i
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]
3 W; r1 ^/ P6 jcredibility-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( O$ Q$ y3 A- g
neighbor-total. H9 @8 q, d6 E! A
;;
记录该turtle的邻居节点的数目' b; {7 G# _6 Q( H
trade-time5 R0 _) B" `- C1 k- |+ E/ l/ X
;;
当前发生交易的turtle的交易时间0 Y1 u/ m1 [* B+ m+ J
appraise-give; K( F" l  k2 m7 i
;;
当前发生交易时给出的评价
) o; ]/ U3 K* F8 D2 q& Y: kappraise-receive
0 t3 x8 y+ W2 N# h6 H;;
当前发生交易时收到的评价
- q$ a5 w+ [+ c3 Zappraise-time+ j3 x. q5 \1 ?- Q9 m
;;
当前发生交易时的评价时间( d3 b, o+ h$ k- o9 s3 U6 s1 g
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
% Z; q' H9 p3 ptrade-times-total/ R8 A3 r7 O* K& Q3 c+ _5 X' x
;;
与当前turtle的交易总次数# b. w) R9 ]* Q7 h0 \) Q, }2 M* \
trade-money-total
$ b5 f$ w# y4 A" G;;
与当前turtle的交易总金额
1 @9 M) {+ Q& _( a& R, k/ Ilocal-reputation
7 p# B0 d# ?( \" i/ jglobal-reputation  o! N3 m+ V6 L4 J- I. n5 U
credibility
7 E: B1 b" Z% I' ~$ s;;
评价可信度,每次交易后都需要更新
) Y# o: K0 G$ L+ N# y' Ocredibility-all
! j$ b. A: d; @1 X6 L  _; M9 R( ~;;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) q; u% U" n5 k3 X0 N

. d0 x/ D6 w. e' K;;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
5 x' u, D, e4 h, [" {credibility-one
5 j1 L3 e& s( j/ V% 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people6 f- h, b( c* f7 n" u0 T" m
global-proportion  Q0 H! L# e. |5 k( D
customer
) M( d' P1 Y* e0 h8 [6 D2 g- xcustomer-no
$ {" X' _* }( ptrust-ok" }8 j, n6 }& F9 o
trade-record-one-len;;trade-record-one的长度! I8 E9 [8 |! g
]5 t! a' ]4 r7 x5 P4 |

+ v( q4 A! U1 l, F;;setup procedure
/ [( p" W( s' f* j7 [! N4 X
+ I# U& {9 h' U2 ~/ h- ?to setup" J; {  ]) u. T1 }

( p7 p/ @9 V7 Kca
& Z" H! a* r! D3 R5 b+ t9 \
. k- o" x2 A& p: ^) `
initialize-settings

+ f, z, f3 f# {1 _7 U
+ u8 [  G( q2 n- [crt people [setup-turtles]
7 e1 |8 D2 H: C  P

% [5 a4 Y  W- {* a+ j; x$ q+ `reset-timer

- m) K" B; H% w/ ^# p6 C+ H3 B! P  d' y1 _5 _7 ]- T; z
poll-class
9 p7 y) r8 ^1 |& C4 Y$ W6 j* i
4 `* N0 U0 g' I* Y3 S
setup-plots
$ g' `; M* m5 K5 N% g4 P

3 l* |9 g- O! f' U4 N* cdo-plots
" |6 K& I. |% N6 N
end- L6 k. |% L8 q3 J4 W1 D

# f! {4 o. s2 C) Sto initialize-settings, |' h8 P2 n' Y, P% b4 h) l

2 {% W. y# d' N9 O# F( Oset global-reputation-list []

) ~" h! g0 q- M. b1 ~! K, m
$ ?3 m  y9 p1 R+ uset credibility-list n-values people [0.5]
1 u0 n* ~3 A) l# S, W0 u# D5 e) L

  f3 C9 X' ~/ f$ h$ u6 {8 e' w# f* o4 ~set honest-service 0

: H! w3 k/ f# y' }1 t6 h. `+ A5 p8 h
set unhonest-service 0
3 k! q% M$ l0 k5 z$ t7 i, V0 N1 B

. s0 X1 I4 z% C* w! zset oscillation 0

  Q& d6 S6 Y5 f
. ]6 A0 v5 w5 t3 D! iset rand-dynamic 0

/ B: R. N0 \- \( w' B$ l( tend- Z4 h# L" {/ P7 a6 w6 b" H$ e( O. w

+ G( v3 }3 h. B  y! X& X; y# r& dto setup-turtles
! {& W* @1 |- Xset shape "person"& _+ V7 U- l" ?: b& Q& c% S% C3 u. {9 C
setxy random-xcor random-ycor9 e$ [& c1 F2 `8 m/ g' K* s9 d, S
set trade-record-one []' i" w* f, G9 e' X' O4 m  m

- P9 g4 f: x# [set trade-record-all n-values people [(list (? + 1) 0 0)] 2 v% I8 `0 K3 d3 s

6 N  y; q: Q- R0 Jset trade-record-current []) Z& `  J6 B! p
set credibility-receive []( {0 o. C. ~2 h
set local-reputation 0.5
0 ?5 p9 l" Z/ U& C6 I  b- qset neighbor-total 00 b* I5 g8 _1 O$ i
set trade-times-total 0
' T$ R$ i4 I' X" [set trade-money-total 0
, D; p: K  Z0 b) l# V* `set customer nobody: V' G' n1 ?8 H' J  i( n& d0 I
set credibility-all n-values people [creat-credibility]
9 F" R0 C7 U* n9 f* eset credibility n-values people [-1]
9 w4 V1 g# L5 i  {get-color& _, @# A3 `4 E
; [6 m. g. j, q
end
6 a4 E, s5 e# y) r  }4 g7 Z
% d  z* j1 v6 S8 ?8 uto-report creat-credibility
" h( q, q) Q+ Treport n-values people [0.5]
0 z" ?) S5 _3 ?end
+ O4 J/ \8 l7 o/ Q) o( O& h$ \( o( h! N
to setup-plots: y9 l) p; b; P  j% w

8 o$ L9 @4 r( D3 ]set xmax 30
' R) T2 G) K2 K1 S
: U+ \) e& ~( [9 M3 |& P
set ymax 1.0

$ m8 q: E9 g) y" x+ j
! \7 c; s! ]2 Y* [clear-all-plots

0 N0 [2 n) Y( H
' ?2 b) t0 Q: ]7 \setup-plot1
" Q. _- s( D6 W' U$ r

4 w6 C) I6 w9 `3 W. Fsetup-plot2
; D! o' d3 \2 E2 ?- m1 W
4 `* c+ `7 `8 I0 O
setup-plot3
& l; k; j0 B, m  x
end
: h- _0 v% }" F
$ i2 {1 x- ~6 q1 ]8 f  f% ]9 N;;run time procedures3 D3 p# ]* q& W" e

& W/ Z. F$ l1 v0 M& x+ ]8 x! hto go
5 Z  r. F) p4 N
" v' F+ E8 W0 [2 m; B3 s( q! S4 R' Pask turtles [do-business]
4 r$ f' H% A2 @* p6 N3 ~( K
end& g" z3 C5 F% \. Q9 M

; T8 B) @  r8 K6 o8 |7 Eto do-business
0 g& h. {7 |2 x% k
; s5 c% _8 Y' N. Z- k
1 U9 M# P  [6 H, |; F9 n  Q  f2 `$ |4 A
rt random 360
3 S' b# c: j$ A

3 z; ~* U7 M0 K; a5 ~" u. R3 qfd 1
" v+ B2 r) L' e/ t6 q: e
+ N7 l" T5 o+ d. Y3 F
ifelse(other turtles-here != nobody)[
5 |  [$ b, C- k* ^
6 ?0 F* w- m: A& g! b
set customer one-of other turtles-here
3 ?" [7 |3 I/ G5 q. Q

6 s3 g! T, z5 G' j' S;; set [customer] of customer myself

  h0 [8 y6 y& d( W
, g3 I4 b% V- D# [# Sset [trade-record-one] of self item (([who] of customer) - 1)
0 G  ~% W5 J/ w8 h: r[trade-record-all]of self
; |9 a1 K% ], C9 p* J& f( E;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

1 y8 G( p0 j6 \) |5 Y! {1 O7 s/ t* L  f) c" u! j) Q
set [trade-record-one] of customer item (([who] of self) - 1)% B' S! r! N% X) Q' T
[trade-record-all]of customer

  Q* R+ [* ^  ]4 s
' K& V+ P' F1 O4 D5 Gset [trade-record-one-len] of self length [trade-record-one] of self

" y4 D6 v* u1 e5 l  V- n: _2 F0 u6 N) a
set trade-record-current( list (timer) (random money-upper-limit))

5 [( v' l4 Y# n2 t( @% @. h1 h0 w/ x2 e; N" h3 u
ask self [do-trust]
4 p4 E9 m  L' s7 \;;
先求ij的信任度
9 j; t" K  l0 ?5 e1 S# P  @& d
) J4 {* L* A9 \9 F5 L$ t/ `  aif ([trust-ok] of self)
, \3 u5 C0 Z" B" u; K2 k/ u1 Q/ @;;
根据ij的信任度来决定是否与j进行交易[
7 v! G; x& W, X/ c; Dask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
8 C( K3 C5 D1 Y8 _( F4 \0 @% r! F) v" T7 w$ ?1 O  l
[
* Y: |/ B' S2 m

2 ^4 [; \$ I$ t- g5 n! Z4 ?5 F2 h/ K) Zdo-trade

# y, w) G1 \3 `4 \/ E3 T  B
% c! T& [2 K: ~5 N6 s5 C7 m% gupdate-credibility-ijl
0 K2 ]. V$ S% k- H" B3 c

# m& K+ u7 U1 k7 a6 vupdate-credibility-list
% j0 K6 i( Q$ [$ r1 g7 r
- S3 m% T: x1 x
0 q3 E9 U- v, T
update-global-reputation-list
3 l/ c# f" N2 R7 N# g
8 K0 s" V: z/ G. _8 ?. y
poll-class
; R1 W4 @  M9 m! B

3 f# M3 j  _* K  R, n) b& U$ ^get-color
: d7 C0 _$ @" H+ F) F" s% ]

1 T) b2 N: a( p6 r6 O; W6 J( N]]( P- j2 z; v* U

: @" p' _- X1 m. n! t  K' g* k! `- l0 @;;
如果所得的信任度满足条件,则进行交易
' e5 T" {) p4 k4 y* }' r, t$ ]
$ b: Y- e* i( s. D1 c[
" C4 d# I; d: N" f5 n) T
4 I( s6 t7 \% I6 ]3 H2 r  M  {% C" F
rt random 360

# C! Z0 ~5 \, J: f, f; G9 j- k
: p5 M& m6 W- j; b! C4 i% r8 Pfd 1
1 {! s9 w" c/ @. j7 a3 |
5 F. g1 @' L2 [( f3 W
]
8 o0 `7 e3 c5 j- A0 ]( J9 K. R

+ g8 ^' o3 s4 u  Q0 g, fend
7 u8 Q  U6 O& H! |
& R0 r$ K! W# Y! K7 `
to do-trust
% M/ l: {/ A, P/ F6 B. f8 Q  |3 zset trust-ok False5 e) ]1 \8 n5 Q1 S

3 A: a  y& k4 ?2 o
5 s! h! |- {* q7 B. S- W& a# a/ G
let max-trade-times 0
$ K- N. {5 x! v+ v0 Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( x1 k$ O$ x' H, P5 M8 Z9 }
let max-trade-money 0
3 W" F# N& D9 m! n# ?7 u6 {foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' b6 y7 H1 g/ n9 Z9 w% Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 M$ d1 D3 z% O4 ?! E- [: T: L6 C* n

4 S$ k' F/ y9 L6 ?$ G8 {1 Sget-global-proportion
+ q- e  S  f. I4 m8 [5 tlet trust-value& G" A. W- f5 ~+ O, e# Z# n, e
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)

' r0 d3 D2 d) ~if(trust-value > trade-trust-value)
, m* [* I, `; Z) \; \9 D[set trust-ok true]
+ ~# V/ Z) H5 o/ Vend! W; d9 u* @, c& v! ]5 w0 i7 S( v8 |

2 k* j$ a8 R- G& nto get-global-proportion0 f' P- R4 C% J! Q' ~; a4 e7 k
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- S" g1 C+ R& Z4 X/ i[set global-proportion 0]
" N! `, r6 u0 c# i) v' q[let i 0; w0 L+ n0 x2 l$ e8 O: r
let sum-money 0* U6 D) x, w) x% |
while[ i < people]( n5 W3 `- Y# m& ~9 g( t8 `6 J
[3 `3 E: ?; Z$ L) ^- ]8 I
if( length (item i* O+ x: h0 s/ t7 k. u% N- Z
[trade-record-all] of customer) > 3 )

' X* l# _& z/ F[! I; M6 G/ n- r6 O3 f7 J( n% @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# G% _4 S7 u9 Q0 b$ ?
]
/ ~* H( H7 f( V' u1 T/ `+ ]]
# w. ^" I8 r4 ^: n+ X6 @let j 05 L- U8 K2 D0 Y+ J& J
let note 0% |# e6 o0 y1 P" c. h
while[ j < people]! }0 V" N/ @+ g4 @. Z  o
[( R% o. j( V, j- G' n) C& N
if( length (item i
7 Y) r# S8 p+ I, V9 }[trade-record-all] of customer) > 3 )

( a1 ]8 }: P/ e* I" ]4 b6 ?/ S[0 y) q) s  i, k7 y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( W1 R0 d* X# w1 x7 P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 L8 @9 R7 k- K, N3 o0 n# v[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% ]! B4 x1 D0 E# [
]7 c% k, x+ w& J# ?% {
]$ |+ J/ [2 U8 I& O- c5 d. F' z5 A
set global-proportion note0 X9 r  [& |# B9 N1 ^/ k4 i
], M3 G7 c  }% o2 x3 U
end
# |& V! u2 k0 e$ i; t* y6 v' U, e& w6 \& T9 Z
to do-trade: A, q& k; i" p& T6 v2 @
;;
这个过程实际上是给双方作出评价的过程
+ W) B: ?0 f( U  }+ pset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价2 ~1 K7 d. F+ X9 ]/ }
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
, J/ t5 O1 L+ }4 p0 |  N! {set trade-record-current lput(timer) trade-record-current
/ c- O! `/ H( Z0 L+ H# \( L;;
评价时间
1 L% g5 H- q2 z" N# F4 M! D7 Oask myself [. j  R  M- y/ M0 {8 u' x
update-local-reputation  ]; Q) J/ p4 `/ G! _: d
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 V  i# w" H' x, y]0 f$ W) z) i5 O- v  z! j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 q# q; f( A" A" l" k;;
将此次交易的记录加入到trade-record-one
( M2 d5 w3 q1 m! m, M) iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; `3 [) U$ I* e4 g, S* N7 ilet note (item 2 trade-record-current )
% A' ?. e! K) Q+ Oset trade-record-current
8 b3 \, P( l+ W+ R: g* z7 W(replace-item 2 trade-record-current (item 3 trade-record-current))

, f" s4 S$ @5 F* nset trade-record-current2 A) ]& d  o. g  W, K
(replace-item 3 trade-record-current note)+ W# y6 `. q2 K3 v

6 J/ `& g5 O# c: |  E

- g+ s( u# i) W! v4 xask customer [$ u# |' a2 W" }2 e/ ~
update-local-reputation
+ v9 D- C3 n1 C) j; k2 L& g3 {set trade-record-current
7 Q# d2 B5 Z* i' M1 B/ Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 F9 n% I  `8 M8 ?$ t# b
]+ Q6 N: D/ M9 \' M9 c
" ?6 t) o4 B1 {# g

: @# c, Z' N. ]: L; Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. f6 F5 o! m5 I0 V% Z
' h2 v, K. @+ O
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 d+ l* B( _7 \3 T0 s
;;
将此次交易的记录加入到customertrade-record-all
: M+ x8 M0 ]- [2 n: f  H& bend
( ]0 z4 I# z" n( B1 o) \# d' k0 d
to update-local-reputation
8 t9 I5 z( T* m& y/ ?" s! Fset [trade-record-one-len] of myself length [trade-record-one] of myself
) E4 E" m4 r! S  [2 b( o! c! w. u# O9 H5 U0 h1 B* K

7 _$ `; P' I* q. E4 [) A9 B;;if [trade-record-one-len] of myself > 3
' S5 |  }1 f* l; ?. A
update-neighbor-total
) [8 N) p: j8 E: Y$ g3 B  i;;
更新邻居节点的数目,在此进行6 j0 L$ K0 E* I
let i 3
! |. K5 Q& W6 s/ ~& B) Q1 _let sum-time 0
2 C. m# W$ H2 B2 Q& w# \. xwhile[i < [trade-record-one-len] of myself]
/ C) v5 [5 k+ N3 l[
* V5 I1 j3 z5 U. rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- W4 T4 B+ W# I7 w( R$ z9 D8 M4 h
set i
; |2 c' u5 A% H0 u# M% o; D* x1 \, A3 ?( i + 1)
% S" W5 o) k) _" q* d. P
]
6 w3 H; @0 g# |& olet j 3
, m+ ~7 ]# ]5 e2 ulet sum-money 0
! L1 Q. k) v0 d* k4 \3 k' e; lwhile[j < [trade-record-one-len] of myself]
' w* r& Y9 a! f[
1 k& f1 |3 H) v0 z7 x2 z4 X5 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)& L4 a5 E! M, T( c0 @
set j# x) c. ~0 X1 u
( j + 1)
6 \/ P" i# S' o# C; V9 n
]: z; l! ^& Q1 D( v
let k 3
8 y" K& ]6 {; M! L$ |4 J: \let power 0. C$ M. G: C) J+ B
let local 0
, z( u* j; O! Y3 y% H, iwhile [k <[trade-record-one-len] of myself]
6 @" H. R5 f  n7 U: c& B# V[
* s* F9 H! G! @; w% P  _( aset 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) . w; V8 V1 Z' U2 W
set k (k + 1)
8 v1 q% u. m4 p- H4 S4 v4 G  u]5 v$ O6 p9 l0 C
set [local-reputation] of myself (local)
2 R. \7 G; X7 e$ B! Pend
9 M" f  H: `4 H1 }+ v# P% o* u8 X9 V5 e/ ^3 V3 v9 [% K
to update-neighbor-total
/ E5 q$ Z/ R- _, V5 p" c  G
: d7 L$ q/ k+ @, I% W& mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 O' c, P% `2 G. L& F0 i
+ N5 c6 k! g- Q, t2 ]- r5 D

; F  X& m+ d$ X) k8 h5 tend* U! P( O  c7 \9 S5 v# ?

. C# \: h7 y3 G4 z7 R+ C- p9 gto update-credibility-ijl
" L) u. H  b8 t% t, a8 I) n
  i. T1 R+ N) S- s8 {; u# F* R1 n/ Z;;
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。8 E; [3 Q1 g) n
let l 0
- K* E7 h! |( \while[ l < people ]7 i0 ^' @% J8 S% J/ X/ b+ j: Z  V
;;
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
3 p: i3 W6 J8 n/ L, E[' z- I, U: _. j9 ?! W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- S& ?  i  k' Iif (trade-record-one-j-l-len > 3)
) d8 i% P, x( B[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与ltrade-record-one3 e/ ?$ ?8 F) P) i$ H% o# Q! P
let i 3
  D: G4 ?* Z8 f+ i# S3 Elet sum-time 0
: x! ^, S% F9 E. hwhile[i < trade-record-one-len]
+ J5 @/ p4 R2 h( p6 t# H9 a[
9 g9 w0 J% `3 D! hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# {  H! V# g9 r* F
set i+ K/ H" _5 i5 _$ e$ I4 \) u
( i + 1)
* ^( k& ?$ ^  m, M
], b+ @( r  ?' \: q9 @: ~" U
let credibility-i-j-l 0
0 w3 L) F8 A- x;;i
评价(jjl的评价)
# y4 m, V( \! T, N" klet j 33 l/ G& N. X  q  B
let k 4! Y% e( ~" z- D: _0 H4 z
while[j < trade-record-one-len]  m: E' Z5 F. l: ^
[4 A1 A7 O5 ~& N% V; j/ t2 [  [
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
$ W: f5 ?8 V" l; K) sset 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)
" F8 h& W! z, ?1 Fset j( @( w- t8 ^) w) u
( j + 1)

, \9 Z3 b6 w/ s7 _3 V]
: _8 }4 ^$ d4 Nset [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 ))
+ I- r$ L7 u/ E# s) S8 m4 S+ p* t9 v* t- I6 x

$ D8 K4 C. t% M: l8 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 [, U! H+ [" [6 |& a: j8 t
;;
及时更新il的评价质量的评价
5 g5 T% E5 r% C1 @/ F1 Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 U5 H' V, ~  D/ z
set l (l + 1)
; V. C3 N  d* d" {. V* @]7 {' ]% q" U6 s; f' W! O" J
end
% Z0 |6 Y" X4 m* G" U( A) d1 X% k9 [' e& g9 H5 {
to update-credibility-list! [( M, r8 l: [- L: \
let i 03 ~8 f8 L$ V* ~7 z
while[i < people]6 k  H. \2 h# ?& X
[
0 p9 v* p: q4 e5 `. ]9 D* C% P- ~let j 0
2 P8 N2 E& h, e9 f3 d3 A, p2 w; flet note 0) q2 P7 m4 E9 z# s
let k 0/ L+ }. e% l1 i
;;
计作出过评价的邻居节点的数目9 \" Q6 M! V& Z5 S7 t+ N+ e% t! v
while[j < people]( t$ d% V( x7 b# i) ~( I! y
[
8 r5 a9 g+ K1 |& f' aif (item j( [credibility] of turtle (i + 1)) != -1)
# u1 f: _3 Q" V2 S( L# u;;
判断是否给本turtle的评价质量做出过评价的节点
4 R' m: q) D. G+ U4 R1 }[set note (note + item j ([credibility]of turtle (i + 1)))$ n4 J0 J) h# P
;;*(exp (-(people - 2)))/(people - 2))]

) Y( y8 }: e1 Q  T  O+ i, [/ v/ Mset k (k + 1)
# `6 F+ E+ M; E7 L8 h]& }: V+ `* H) ^
set j (j + 1)
8 \" a) j; p% a/ ]]
( M9 r2 E9 i+ m7 \6 [6 V1 _+ I2 Dset note (note *(exp (- (1 / k)))/ k)
2 c1 ]; g! b: F+ x/ J: |& pset credibility-list (replace-item i credibility-list note)! e1 w7 T% [% d- v: d# ]
set i (i + 1)
6 h$ W* [2 x' w7 f( f. D]
( p0 C0 E$ ]! E4 R; F/ S0 t! s0 lend7 Y" R6 K3 M7 u' }

3 `8 j1 p$ C' C" t* a. [. Qto update-global-reputation-list
4 H) Y8 y/ {& f* t& l; v. slet j 0
* s" q+ X# ]' S/ r3 V! pwhile[j < people]6 e) x. [' K( O
[3 F8 U! h- ^) r. [
let new 0
1 h% ?  }8 X0 m;;
暂存新的一个全局声誉
+ S9 O3 y# E- z# ]let i 0  I6 v3 }8 L* U/ l  H
let sum-money 01 ]) E! ?/ L% Q8 T
let credibility-money 0' |# j5 J  p2 W6 X  P( C
while [i < people]
/ L1 Y- U8 o1 u- h- ][
$ {- x& o- @# B' J! y- ]: wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 ?* C' i( S1 V1 T) z# \% W& b
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 n6 c8 k; a+ G/ j8 r3 Iset i (i + 1)$ ]% L' K- D6 M9 s
]7 k9 Z" }1 Q+ D. e$ ~6 u0 k% u
let k 0- Z7 J& \; k' [8 |* m+ C& m
let new1 0
) |# u7 _2 z9 }. V+ rwhile [k < people]3 H2 H0 a. d% @0 K% X% d
[
( j" ^/ K& D* k' Tset 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), g, f0 ]4 e9 g, _
set k (k + 1)
- |" F( Q% l7 Q& T/ q. s]7 x3 v' r% P# B% S# O$ K2 R% @6 c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 y; h# r3 @( p% f2 I+ w
set global-reputation-list (replace-item j global-reputation-list new)4 n/ M& _; O- ~  o9 y# W' A4 M
set j (j + 1)) D1 L' `4 w6 |8 l# u
]
- ^1 X/ w, ?  x5 T9 mend
- w5 S) g2 l: T/ Q* f4 V! I2 N, H- V4 ]3 I

- l/ g, `. K" Z0 s1 l, D- s/ a1 J) P3 X0 t& X9 y7 T, {! d" y
to get-color
  v6 j6 _  ~# k& a( W: r3 S
' W/ a3 j- \! Q" {set color blue

- \; y% s5 T- O8 ~, K% ]; F6 s. oend: I* E3 t7 \/ i. R# }; M
! |) p1 m0 I! h" s" v* B$ D. V8 N
to poll-class2 d1 \; l% S; ?5 S8 g* a1 u
end0 W# \# A% Q+ J9 `
' J: N3 k5 W; ~4 H" Y
to setup-plot1* G4 ?2 N/ U3 u# A: y
* v4 k# u* [+ E( F: f( G
set-current-plot "Trends-of-Local-reputation"
4 U  Y9 y+ `3 M' F1 G- E; P9 L1 S" e

& D( |+ e/ |/ U  J% qset-plot-x-range 0 xmax
5 c# D; G) f+ y3 A% V3 h

7 |# p$ N) T# g& H( ?+ R( zset-plot-y-range 0.0 ymax
# O6 e3 E; w+ C% ?0 q
end  `& R7 T+ P$ T  G5 U

3 r8 l  D$ x  f9 |to setup-plot2
. [/ |; Z/ U' B" Z
  j# y. Z. H, F3 o1 w7 Qset-current-plot "Trends-of-global-reputation"

" X" t  n- I( u( W) N! V4 C/ |% m* c  ]% n  g( a
set-plot-x-range 0 xmax

" G! f$ H1 B% I$ {
) q* u& b6 `: y# m* _( Gset-plot-y-range 0.0 ymax

- o# z; {5 [: Hend" @# V' Y* X% M4 S0 I& _! M. o: f

" d% F! x! k& i7 Zto setup-plot3( G5 A, B; p% A1 g

" |& j2 h6 t7 h- Z* [9 q" U7 T# Eset-current-plot "Trends-of-credibility"
. m( j' `8 K" `( Y$ u7 g
! p: f3 N2 U. Q% h& q$ a" U
set-plot-x-range 0 xmax
! `- p6 ~+ d9 |# y# l# t4 h, `3 m
  N9 n) _/ q8 a& I
set-plot-y-range 0.0 ymax

* b: K. h+ p; z; D' e4 ]& g* e9 z2 Kend. m5 G) U. i" R  k/ F9 O# [

: ]9 ~; F; J/ x9 n# Jto do-plots% e# A4 L, ~0 e  Q% c, r
set-current-plot "Trends-of-Local-reputation"2 s" e2 R* L9 z9 E2 L" e
set-current-plot-pen "Honest service"
5 O3 u. d( f) Rend
( S& o& U5 \& s" }6 V: Z' A. T( `* _9 s' b' J
[ 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.
) K( ?* {" n4 e# K1 D/ S5 R& C4 ^2 r2 F6 \% M; Z
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, 2026-7-16 12:19 , Processed in 0.019439 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