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[交流] 关于turtle的使用问题

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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:+ a# T* N' t& Y5 U: I3 y
to do-business
. g: h' T, D7 H( ` rt random 360( y9 g+ J' a7 s  |# d
fd 1
5 m% Q, d8 [5 `4 O5 @! i ifelse(other turtles-here != nobody)[8 V& b* q2 s% Q* 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.
( [; s; }& T: h9 G   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    - e. M! e* O, O  V3 V# H
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
( r( w  R/ M3 O. ^   set [trade-record-one-len] of self length [trade-record-one] of self; R+ e9 ~" H4 G( e6 L4 ^
   set trade-record-current( list (timer) (random money-upper-limit))
1 A! X3 ?! e& c$ K4 J9 E1 \! W6 d% d
问题的提示如下:
$ g! T* D! Y" r+ c& ?8 Y( y9 i9 ]  a  ~  m
error while turtle 50 running OF in procedure DO-BUSINESS1 P5 o3 R# W& N! X
  called by procedure GO# \. g* ]3 }/ C2 f& A) i
OF expected input to be a turtle agentset or turtle but got NOBODY instead.7 m7 F, K5 _) i1 ^3 m: A# k
(halted running of go)
( s" q$ v0 |6 ~) L4 x/ \5 L+ ^3 u8 v( G( g; r5 }2 f+ C
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~~7 \6 P  q; ^+ g6 U0 v! @- Q' c7 O
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.

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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 X" K( [" k+ f! j1 p
globals[) i, ^' |( B6 g7 r1 Y5 f
xmax, }% {/ B  f5 \' j$ K" @# f
ymax3 v1 U  v# h5 k6 R! W% X
global-reputation-list
; V4 U8 q* }; p  K6 [: [+ Q+ W8 T4 o& n5 [2 C
;;
每一个turtle的全局声誉都存在此LIST
0 ?' ]( i, a1 W# l8 ?; `7 ~credibility-list3 [' w# ^; e4 L9 ^- B
;;
每一个turtle的评价可信度& w; @% d* }7 m% X0 e
honest-service
7 {9 r( d; ~/ r3 I' n  U( d. Nunhonest-service7 p, }- y7 A$ O) f* Y- m( ?% l" V" L
oscillation
' y6 S# M. Y% Krand-dynamic
2 P2 @3 h; `. O, \5 T5 \]2 j9 c- Y* ?. c. e% r$ N
8 L- h3 ~/ Q3 Q9 q, f0 O% j. t: p9 F
turtles-own[8 I6 m$ }' Z& T; D- ^1 B
trade-record-all; D% g/ N; {7 v; o& E
;;a list of lists,
trade-record-one组成7 g1 ^) B4 O1 T* X) V
trade-record-one' K* s8 f# K* Z# ~0 \: r) _( B
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
  W1 G8 J! _. h( }( R. y! |) U  N  F# B) N1 c- i% Z( N
;;[
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]]1 I- `3 D/ O9 S- a, ]5 P
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]$ J  v( w5 X  S, X6 {# 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list$ ]! o+ d% i# R* m- T: X2 f
neighbor-total
8 I. B/ i! `8 _: W$ ?8 k;;
记录该turtle的邻居节点的数目  _3 O$ e& a; @. b9 h8 `
trade-time( v/ ~/ P' u- T" j* U' f
;;
当前发生交易的turtle的交易时间6 t5 u$ Q6 O+ K
appraise-give
) W4 F5 z; ?$ U( u5 t7 H;;
当前发生交易时给出的评价5 n8 d* H6 e$ N  @7 H
appraise-receive' X( D& Q! _7 ?; ?* w6 m1 C( j6 c
;;
当前发生交易时收到的评价
. ^% Q: G' g0 bappraise-time
9 p- F( V% x$ ?- Z* _# _;;
当前发生交易时的评价时间
8 p# y& {. B5 E" Jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 ?3 M% Y, H9 J3 A4 x$ jtrade-times-total
/ B# u* F. F% x2 A, f, W/ T4 X, r;;
与当前turtle的交易总次数& j8 a4 i. x% @3 H* U+ z
trade-money-total
, w6 e% U$ w, _) |" J# S;;
与当前turtle的交易总金额
( A8 N' Y% R+ alocal-reputation6 l$ n- h. m2 u2 z- [3 ^8 w
global-reputation8 \1 D4 \7 M% a+ D. c, G
credibility
' {: m8 c( X: e% P" R+ k& g- E% k;;
评价可信度,每次交易后都需要更新
! }5 V9 W$ f3 e, S  p) Ocredibility-all
  h$ B5 _% a( U;;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
! s/ m' |2 i* m( q; s3 z: j  ]# w- f2 W( Z- O8 E9 Y
;;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0.51 `+ k  C8 p$ z0 u$ K
credibility-one
! ]9 ?7 `" \) T- ]: X/ j1 o; 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people5 }. V6 u# y$ U% i2 v8 Q( K
global-proportion1 t) ~% l& F5 s6 P" R5 Q9 r
customer, m9 ~/ F; h& N2 E- X$ G7 `/ a
customer-no
4 w; M6 l+ c$ H4 X5 }1 L7 ?6 ytrust-ok
) d& _8 @: x' Vtrade-record-one-len;;trade-record-one的长度: A: [, I; z) W# P3 i
]0 b  Z6 j' }2 ?( J5 J9 w- s
' F3 {, t& Q5 V7 E: z
;;setup procedure
9 Z1 d) E' R( s3 h1 i' ?2 H: k. _( v
to setup
, f8 r- W9 t% c% ~) o  I: ?& k( m* ]  i( l; e% E. J
ca

: Q) |  Y. }  |9 S! }  V6 |5 j1 N9 k; Q. j1 M
initialize-settings
+ D9 x3 t/ Y! Z% L( O" d

( b' l& a9 Z  G/ rcrt people [setup-turtles]

- L1 _- w+ h. O+ B  ?4 @& L' G6 ~. p% I1 m, _! K2 C
reset-timer

5 b' m2 f+ o( _. x  o6 O! v
; F7 H- `* ]" C* B- i8 h0 ]4 ~poll-class
$ Y3 s# `4 X2 F+ e1 k) p
( {1 P7 g* o2 S$ R
setup-plots

" b0 X8 ]5 L$ m# G
, X6 L  v: f3 o6 v0 h+ v9 h8 a4 kdo-plots
6 y8 C- z) y1 L0 N
end! D! B& ?& L: I) X$ e
. K6 U& L0 c- y. A& J; k7 j. R
to initialize-settings
6 J0 {! }7 E; F! V7 |
7 f) j( @  K8 @3 `$ G' c8 n# Kset global-reputation-list []
: |2 a: R% M$ |, c

7 M( W4 u- j2 `set credibility-list n-values people [0.5]
1 k$ l3 n. I$ c+ D9 f) x8 r

$ M* l: |* V0 e! U& dset honest-service 0

; {1 W7 }6 ^' X$ {
; |- G: t) G% O  U+ R6 p8 nset unhonest-service 0
( f, z: _8 M; u' c; u/ h* O+ }9 n. g1 ^

" `8 y) ?( ?( ]3 F  lset oscillation 0

: a; Y/ s1 H6 u1 ^8 G% m/ d5 O- v8 w' i5 Y; h. A% M9 D: ~
set rand-dynamic 0
! ?9 O% e( w$ h' J
end
0 a" y" c' E+ ?+ `
4 K- \8 \# m9 Q$ _' cto setup-turtles ; R3 b. {) C/ a' a
set shape "person"
; C& @# R9 ^& W8 h: isetxy random-xcor random-ycor
; _  e- ]5 H: R5 A; R  h5 `set trade-record-one []" h& E0 X& ^6 ?
0 S' x7 k- {1 l! v5 P
set trade-record-all n-values people [(list (? + 1) 0 0)] & j1 @, p0 A8 x, u; o
; `0 _. f% W3 |) ]7 _1 j
set trade-record-current []( X! a1 ?. H6 R* H3 Y
set credibility-receive []2 E  i* J. s  `
set local-reputation 0.5, A! r8 O% S) s( b/ A
set neighbor-total 00 b" t/ d' }: E1 H! E* g- t" s0 j# Y
set trade-times-total 0
, \. Y$ @$ f+ R1 ]3 r; hset trade-money-total 0% ?. W9 O' `) o7 E3 M
set customer nobody
4 O& `5 K3 d; ?1 ^$ ^set credibility-all n-values people [creat-credibility]
6 o- U0 [; i# H* q+ Wset credibility n-values people [-1]3 Q+ s! ^2 E3 ?* Y. D# q/ |( F
get-color
* q" ^: n+ N* R8 r- u
' C2 f! |# X# i* h4 U
end3 r/ X+ @- r9 I# p
6 ^% d' _& r2 f& l  G# q$ h
to-report creat-credibility
* d; a2 P- U: K& Q1 Rreport n-values people [0.5]* P7 R$ _- e5 a3 A5 {- [* N, i
end0 G( I9 P; z# A. N; Y
0 O1 A" n# ~5 {6 h: Q& h
to setup-plots+ }4 p; E' U* b- C- _% |# u( C' g

; [! l( \1 m6 V1 l  D- Jset xmax 30
) O  I# a# c1 r7 j

" s! E! E* _/ v4 l2 h" A# |set ymax 1.0

% \7 }4 u7 [: m. q1 B" X' G! F$ Q: y: Q4 F: ^3 {7 y& ?- m
clear-all-plots
1 R+ J9 F1 ^7 `- G% w" I

: @# c# S3 d+ z5 U9 vsetup-plot1

. q. J+ }8 I6 B8 _+ i% P9 P- }9 z7 T3 k9 k* o4 v
setup-plot2

2 g" f' f% B% L. g9 y4 d* D, w% T! r& I' l' o6 p0 W$ m) |
setup-plot3
3 g# D9 V/ k) ]' Z9 Y+ F# f, ^
end
7 z% F6 b. ~3 A5 y# J! G
$ G7 @8 f2 h' a( a;;run time procedures# d/ M1 ^- V% d6 [7 O5 B
, g8 J+ K% Y0 w1 ?7 R
to go
+ }5 ?0 F% Q2 p9 ?: {4 S: i$ {- y2 f$ P' u. {' A0 R
ask turtles [do-business]

5 q, m/ _8 T8 J; i9 eend
& y. U9 m* R8 H5 E& i6 i0 T& Q8 K: S/ H) s
to do-business
0 ]7 m. @. F) y" ?/ s8 `2 f

  @. R. a" d( q: u! a
# a, S; o+ L! r/ `& j7 z& nrt random 360
4 h- N9 s3 J2 Q8 z

5 b! U4 ]6 {: @& _% t& O& Yfd 1
. ^$ a. V, X9 F+ ~# s

5 P# {' I; ^! P  Sifelse(other turtles-here != nobody)[

1 W  A/ {/ A2 b1 |( r3 e9 b$ _. Y% a6 K" u$ ^! _
set customer one-of other turtles-here
% D" C7 |" k4 @4 Z% H  d  o7 ~

) t5 c$ m  @& I  ?) H5 y3 p;; set [customer] of customer myself
3 S9 l/ y1 u7 `7 b

: ?, c% C! A: Iset [trade-record-one] of self item (([who] of customer) - 1)
9 O5 y1 H& L+ i* n( v/ ~3 G: u, N0 T[trade-record-all]of self* k0 U0 x& g. n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
  S' w  c0 r; X
8 b* v$ H  e3 z" j/ }
set [trade-record-one] of customer item (([who] of self) - 1)
3 b# x. ]  ^2 i6 v[trade-record-all]of customer
( m  V3 z2 D  }# i# C
: l9 {6 x, r7 k: d+ M
set [trade-record-one-len] of self length [trade-record-one] of self
- v# V& E6 m1 ^  a- j. E$ Y- K

. o7 ~+ Y4 R3 b$ a2 g; kset trade-record-current( list (timer) (random money-upper-limit))

( {- d5 Y. O! z: X) A! u
  d  w  O9 `& R2 P5 v* c+ Iask self [do-trust]4 N6 N7 l; p* O: l* M8 o! K# G6 w3 p
;;
先求ij的信任度
9 t0 K- U" X3 E7 e* S- p9 |0 D( G% l: z- I# v2 P0 L& L. v/ W
if ([trust-ok] of self), D* e! K" Z6 w, o% z" D& ]
;;
根据ij的信任度来决定是否与j进行交易[
- u0 j- ^% ?( S* O4 K' zask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
. X2 f+ @$ u# A- \! I7 W* ]  z4 ^# l( y4 y2 g7 k5 \+ V7 Z2 R0 F! @
[
: `" h% y4 P% B/ d3 ~' A
7 P5 g+ W: n) J9 Z& r
do-trade

7 s1 i. _5 Q, h( Z0 ]
  M: l) E" U9 R; {3 d% @update-credibility-ijl

: P# l7 d) _2 u  R6 b0 X0 A  M1 @, j  o! _* P2 q- v
update-credibility-list' D6 Q" w, G7 G9 j
8 |, P1 |. M3 H

9 n8 }0 p, a# n' l- Y2 K; E4 k9 ?; bupdate-global-reputation-list
+ e9 f6 A9 K" g1 D

6 b. A! ~( @0 k# S8 bpoll-class
+ s! B5 G0 g+ l9 P

9 q" ~! h- D1 s$ `1 c+ o$ oget-color
6 Y$ {! J. q: K" c

; ]$ _' [* P0 X/ N4 M) B+ b# a]]
- ^8 h  }& n0 O
& C5 R+ T5 u% B& D  H, L0 ^;;
如果所得的信任度满足条件,则进行交易! }7 o. i0 `. m5 i

2 F- @5 F8 h! [6 O3 v+ ~+ B* A[
1 J- E: y3 a( G0 z  ^. Z, h

! ^) B' w: P$ n8 x* J( [rt random 360
1 X. f& j9 y" Y' {* C
* ?- b5 G1 W4 {3 u
fd 1

) }$ D+ o: _9 r2 c
) \. N8 b+ O7 N( Y! W4 n# n]

1 H! z* ^, Q0 ~7 b$ h& V
; N  A  ]4 T2 r$ P6 r0 g$ K3 Yend
) h+ D0 S% t4 ~; L4 A

7 A' ~( u2 _5 N8 Z: a* i. Gto do-trust 1 n4 ~% H; s' `
set trust-ok False! r- U  R* C8 E( k. M$ k$ @
9 z& Q4 I5 E, O7 @/ k6 Y3 ^" c

/ U% v  L7 J' P; Z" B/ w) O6 klet max-trade-times 01 F2 j) D& v5 `# n0 f  ]
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; W* H0 s8 o# K, |( z' Ulet max-trade-money 0& v  y3 d1 B* v. }8 k! |& M
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; P( D. p; e- E1 G; a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
  X2 e3 u4 Y% E& I, a0 x6 `3 Y* X0 c

' @# f* g5 e! a7 |' p8 Z) Vget-global-proportion8 B  q) {+ j/ s6 A& G0 Y. Q0 f' H
let trust-value$ G  C, \, y+ L& M& J, d3 M
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)
5 C4 H5 ]9 U4 a% |  n+ A2 T# H
if(trust-value > trade-trust-value)
' w. d: W4 `; r/ n[set trust-ok true]- u, ^1 c' O5 l- x
end
9 h. d0 W' d$ B; n+ B
* K, u- |" k7 |3 z* Tto get-global-proportion; h9 _( P' y" Q! ^- S) P8 R
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
; S( Y: Z1 N1 Y; N. V* p[set global-proportion 0]
0 t1 }& Z) `  ^6 E! V3 r[let i 0- i' t' J  J" g& m( V: ^0 U% v$ a
let sum-money 0: r( q/ `* Z# Q* O3 a; ^
while[ i < people]
. j) d# O' ]1 E/ j& D: J/ c* v& L[* I' Y, t) H$ T+ s5 J
if( length (item i" T8 L+ P) ~" v) r8 l
[trade-record-all] of customer) > 3 )
: j, [9 p- J+ `& z
[$ M& z, t5 o, m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
  r( P3 ]* s: y% g]
( f8 k4 ?+ t* ^+ f  z* j4 \]
  z8 j4 S1 W: blet j 0- Y) }% S3 z& M. {! b( }3 m
let note 0
% d$ Y- x! y; U- y) Cwhile[ j < people]* R/ s4 P, Z4 K6 y$ s" D6 T- Z
[8 E% j, \) x0 K
if( length (item i
" y. O3 U4 @: A: v[trade-record-all] of customer) > 3 )

, D5 F+ s3 a2 @7 }! N+ ]5 l[% f* C& V5 Q" s* o
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), K/ P/ L$ n6 G' s7 a) l* H
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. J' X4 C6 v# `/ j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# b. n8 b8 o, O& [& n. }0 r
]
8 A! ^0 M+ M: M: p8 K]
0 u* I5 i4 g; L0 h9 N- Oset global-proportion note  p0 S; p- B$ y; \3 F* r3 k/ [. J  m
]
- W, ?) y2 }9 rend
9 ^5 K& J2 z$ E  @  [) G1 l/ {" n$ X
to do-trade) U4 t& N5 {, e' S
;;
这个过程实际上是给双方作出评价的过程1 u3 ~7 D- N/ k1 t3 j& j
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
& Q- N' s- t# X' I' jset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
$ d7 l9 u# J  J1 D  gset trade-record-current lput(timer) trade-record-current, C! a2 G  j! ~
;;
评价时间
0 G, B# d  ^1 zask myself [$ i, W! o& L! E
update-local-reputation
% ^! p9 w$ H6 B8 P; fset trade-record-current lput([local-reputation] of myself) trade-record-current
9 z5 X+ \$ F/ C]. P# u, U9 E6 {$ h3 a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; K0 d$ a2 h) p. @# l0 c
;;
将此次交易的记录加入到trade-record-one$ j% I$ u; _. O& K% l4 v9 S% B+ b
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- C0 g, y2 F; m( V* B
let note (item 2 trade-record-current )% R8 n* \, X5 {# [$ n
set trade-record-current
3 C8 v1 N* m7 g# N; o* [/ O% _(replace-item 2 trade-record-current (item 3 trade-record-current))
" L  H' E0 v; g
set trade-record-current- _) C6 y" q7 n) |0 [
(replace-item 3 trade-record-current note)
( k. E$ j- j: |4 j7 L4 i
7 d# c! [6 L+ K/ ~' m' |
) U/ o7 n8 Z9 v: v6 _5 O% {$ Q
ask customer [/ L# y+ Q( ^, X, U$ k
update-local-reputation# x; s5 `7 j3 z
set trade-record-current
9 n$ {1 J# j5 s5 o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

% K, a6 Z9 N' X$ [6 c]- i$ P, G  Q' m# E  X8 S

: h- x3 V3 e1 u$ N" N
' V; w" K# ~- D4 L- z; B0 p$ ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, }$ [7 b% L+ y* m7 r& ~+ v

* z0 C( B5 W2 Y" qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" T' x0 ]" x7 ^4 ]" N;;
将此次交易的记录加入到customertrade-record-all
4 i* I) e. ~1 ~end9 v7 }; `5 n  \6 r  L

, o) w; C  ^3 w' L' d( cto update-local-reputation
& V0 A% X3 ^/ a- pset [trade-record-one-len] of myself length [trade-record-one] of myself
! v, t6 m0 u4 a7 ?: P/ h. H$ e4 d  b3 ^- _+ @- [/ i# Q
  ^& P( I/ e" f, m
;;if [trade-record-one-len] of myself > 3
9 g, d, v5 f  P/ I8 g
update-neighbor-total3 N: f% o1 }! z% J) V
;;
更新邻居节点的数目,在此进行% w! ?, ?& c$ i' m& G
let i 3
+ Z2 B+ Q7 p( N% K# ^6 blet sum-time 0$ D9 a" e) z7 s4 a
while[i < [trade-record-one-len] of myself]% K' c' t9 q" f) r
[
1 J+ `; y/ y9 u: Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 m+ l4 L9 ?; S) V" Uset i% G7 f  f9 n' S
( i + 1)
1 S! J( G% W( g8 o' K
]
* c% F7 x% b0 b& Xlet j 3. ~! l' V+ e5 w0 @( G
let sum-money 0- r& j: `% E- @4 N! a# R
while[j < [trade-record-one-len] of myself]( A& _% D; f- x- Q
[. x6 O4 k4 i/ [, g
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)! K' P+ P: o. [" j* a4 ~- Q# b, x5 N
set j
; ^. d( v" {! ]9 _5 w/ L( j + 1)

7 y: y: ^, Y7 Y]' Q' ~( U8 ^2 R3 P+ T9 u2 ~/ ?
let k 3: e$ M. d+ Z" p  ^" B9 }# e
let power 0/ n0 K/ Q4 ]" q! k" |, P* X
let local 0
1 J* q5 b  {# w: z, awhile [k <[trade-record-one-len] of myself]) R3 A( ?2 o, i, U# L
[& [% i- H' m5 [9 M7 @+ ^% j
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) - u' ]7 s- W3 z2 @
set k (k + 1)) H" O* M: n; R1 p" W9 x4 \: e
]
; }. |- D# r1 d9 ^; Dset [local-reputation] of myself (local)' |5 [8 u  T* }0 K$ H, |
end
1 ^; m& d8 z: H# D9 Y! _( T$ z' ~$ \. [2 l
to update-neighbor-total( B, l- o! o5 M8 h5 s, k
$ Y0 r5 R7 K3 I, i2 J" \/ |  q% @
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 `2 B) P  X) _0 {+ k6 Q
. M5 z: L, N8 g9 X+ \8 ]

! e$ j8 `; m# X% P1 ]( oend
/ t+ t) Q' h0 [- U, a7 t" ], t
8 _" i. A' a# Z1 d& }to update-credibility-ijl
1 k6 ?( P; C( l+ f$ N6 g: y
7 r; U' k% t, `2 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。
& i  K; j) f' P- I% P- nlet l 0( p) z4 P/ I7 q: ^: W( l7 \
while[ l < people ]
$ v/ X( A$ |. C: B( 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
1 k; z: @' J  w6 z[* [1 O5 x, R* V& q1 B6 J
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 o) k! z2 x2 Q& Q* F
if (trade-record-one-j-l-len > 3)
) w, J, ^9 d. e0 j$ R[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-one4 H( b9 C. m9 j2 S4 x+ m) M$ _/ I* j
let i 3
6 B" R* e$ E" [# S9 Q" Slet sum-time 0
. E3 M3 @! a9 Q3 x/ xwhile[i < trade-record-one-len]
; {& L) r/ {9 v+ V/ L4 f. y[
% ~" x0 e. [) l5 g+ c( Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( W% T. V' U7 Y; W! ~set i
& P0 E+ i8 l7 s' N& Q( i + 1)

& w% y% z6 S6 g5 d3 x, C5 R]. c8 _& l5 {5 `& A( g' o' y
let credibility-i-j-l 0
' |7 R7 v6 h# x) S& L' c;;i
评价(jjl的评价)
/ c7 K9 u' G$ W2 C5 s/ zlet j 35 a+ b. ]* H/ \; ^: w0 h; y
let k 4/ w2 O+ r; ]  B& [/ Q0 m
while[j < trade-record-one-len]
6 b3 G  z; J+ M6 g: [$ d6 T3 z[
% l" [! @- |; E. i6 y- |' g$ j2 Lwhile [((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
2 h5 H4 n$ u: fset 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)
, O4 F9 z# w: x: t" ~; ?set j% X; [# b5 o0 ^. \. S6 Z+ x0 F. Z
( j + 1)
% G1 A/ W$ v: ~( w8 ^
]
/ O) f, q- m2 uset [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 ))
8 f4 `1 @1 v& p' }2 D; {( B5 K6 P

9 J8 [$ r3 p4 v/ s9 elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- `; d- c3 a% P6 n% M1 G
;;
及时更新il的评价质量的评价  C- g6 B7 F' k5 s' _
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& X, Z% D' o, H1 {+ Pset l (l + 1)$ \) N$ G% g) ]* U6 h9 c6 g" ]
]  ]  v$ \" K9 B+ D
end
9 r  a: S" y, T' s! X3 H; h# s3 o7 \! d3 `/ v' A0 i3 j" W9 A
to update-credibility-list
" R6 J9 J& s4 l. klet i 0& z$ Z1 ^, |# Z7 h& W
while[i < people]
* [, E2 A' M1 ^3 f6 m4 ]) s[
3 r( a+ p1 J" D! T$ }& x  _. Qlet j 0
  D0 G7 W* c. i6 t+ `: tlet note 0+ z! b0 B# G$ o6 \/ J" @4 t+ P
let k 0
% ^$ ?- S  q, K2 a! U: P8 S1 V;;
计作出过评价的邻居节点的数目& n, Z" P' m# g4 I
while[j < people]
, c: T) A4 k" ]; g( C7 }& d! P[
) J0 M" m. s  b, [: @2 yif (item j( [credibility] of turtle (i + 1)) != -1)
+ h. M6 a& m  ~1 q;;
判断是否给本turtle的评价质量做出过评价的节点
9 d+ V7 I+ M+ r9 r. L$ E[set note (note + item j ([credibility]of turtle (i + 1)))7 z0 W1 D2 T' O6 w) U! |4 w  w- H  e% ~
;;*(exp (-(people - 2)))/(people - 2))]
  t5 H2 B* D8 ?7 D: M
set k (k + 1)6 v1 k- H7 P( \: ~  a
]- a" ?' M' T% N+ v& I5 D
set j (j + 1)4 ~- M, J( r$ S0 I" b6 q1 W
]
: j2 b- w1 G5 w: K. Yset note (note *(exp (- (1 / k)))/ k)
1 w2 e7 b5 i6 ~! w: `+ Cset credibility-list (replace-item i credibility-list note)
; a9 u' L) L+ N! o' bset i (i + 1)
6 K2 J: R8 M4 t# T- }" y! L]
& F4 T  i! l$ q; zend+ {/ P/ o& e1 f* \7 _( G

0 `9 n, l  L* f  v8 Gto update-global-reputation-list
6 J9 Y+ ]) \) O: g  elet j 08 J1 d% d" _; u6 s1 q
while[j < people]! I3 [  E! E+ Q. b9 L! K6 w
[% A* ?$ b$ Y( A' k4 o2 O6 m# _
let new 0
# E" L* {$ E0 s+ ?;;
暂存新的一个全局声誉
& X" T0 @% L! U' a- I# |let i 07 ~: ?0 t$ O3 d# U. x/ O2 Q' W
let sum-money 0
4 l! I0 B* U3 j$ J  m( O7 C+ c: tlet credibility-money 0
$ k6 R3 L& T. V! |  m5 ~while [i < people]
7 `1 d9 e& G! P! H" Z0 K[
  N  w# K9 x' E+ A) uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 g2 U/ p  W) R7 p( ]9 u) s% G
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( B( V- a# u  g8 I
set i (i + 1)
% i7 z! _6 r8 ]& D5 e0 z; N]
- ?) N$ K+ C+ u) L, ^let k 0
) m/ e+ _; p. a5 [; V& n2 jlet new1 0! g/ P+ Z  b. c4 R; I* A
while [k < people]
9 K' p5 Y5 ^" }8 v$ @[5 w# _3 ~) z* ?5 ~% }
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)
6 N2 U* j2 x* T" x3 hset k (k + 1): ]/ L7 G, I* W. z6 Z: R
]
' L" U) ~0 E- r- sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* {5 e. L. Z0 p. {& dset global-reputation-list (replace-item j global-reputation-list new)& `% D$ _; j& p# s
set j (j + 1); V- [6 c( W& A$ u
]: z; p- M! u9 i! j- w1 X+ v. E6 Y1 k
end
) R! N* z6 c% v1 B, e7 f) N" f  q3 H# f

8 m) z+ y8 H6 C- o4 y( \. z
/ J) X, K* |! v$ m# ]9 _to get-color
7 |+ L$ l. j1 C7 c8 c3 P
- n' {8 P2 R, dset color blue

# d0 [8 t; W$ R' vend
2 y0 }: x$ x: m8 R0 j
/ s& I& N. w3 z5 }to poll-class
" _6 p8 ?/ ~& p  x5 c# z3 T( Mend) ^( J6 d6 y1 n  D  n( K9 N
. y8 ]8 J$ D, m$ S8 l3 ?5 g& S0 Q9 w
to setup-plot1+ U, M- J8 b" v8 |) e! ]3 p
% l2 q0 f  R7 e. @4 X. n
set-current-plot "Trends-of-Local-reputation"

$ k9 n* i+ u5 m/ s' X
0 [" ^+ G4 A2 V+ Z4 n9 Dset-plot-x-range 0 xmax
# J. a+ l2 E% H3 R& u9 H
( k5 y' o* b7 }" U
set-plot-y-range 0.0 ymax
! a$ S  L% ~5 [' m# e  }& @
end4 E! v- \6 Z& n  J. i
- Q" c" b! m- I1 x7 p) m$ v5 t
to setup-plot2
" e& G2 x0 y4 C( j; ^. s! ^
: u# z) k) x8 J, Z. nset-current-plot "Trends-of-global-reputation"

  i( U$ u# t+ n! Q8 [5 B3 l4 r  ?; d" d9 Z7 P8 U. ~& o! H2 A
set-plot-x-range 0 xmax

. P& o+ Q2 S* ^: P4 O* f+ W0 p! a" b: W/ p# S! t1 H. P2 v
set-plot-y-range 0.0 ymax
& G: N; ?  L' Y
end. j0 j1 U( h; A# u5 U( O
9 s# g% F0 _" x3 u$ k
to setup-plot30 x( f. I- a0 c- R: o
& l) L& c3 J! b& Z( g
set-current-plot "Trends-of-credibility"
4 @8 e# G% r( P) j6 a
( B  M- @* g- ^
set-plot-x-range 0 xmax
; i  {( k& x4 p4 O

8 \! I# s4 t# p% N! Rset-plot-y-range 0.0 ymax

8 O3 g7 Y3 e7 V4 ^% fend
) ?) b# I5 V7 A; G2 t% v. V$ a6 m  Y) m; `
to do-plots# V( A; O/ |! X  g
set-current-plot "Trends-of-Local-reputation"
% m1 X+ r6 h4 W7 V! E6 E7 Rset-current-plot-pen "Honest service"
; V) N8 z" m$ g* X* U8 P0 pend: i- o9 _  z1 v
5 ?5 h/ ?7 b0 W* I/ G& f4 o' a
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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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., U6 u# A# N+ w9 j) _. ~
5 U# i+ D7 T# K% {& {
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?
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