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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:$ P# I) e) O! c! |' W+ k! [
to do-business ( t/ `3 b3 ^! c! [
rt random 360
& ?' [& @3 u% \+ O( e& Z6 ]$ W$ ? fd 1# Q6 _( L/ l' l
ifelse(other turtles-here != nobody)[9 Y% N& r% \. R& s' S2 W
   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.
# Y5 S+ J& J3 }$ m* X. }4 ~- T   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
* N& o! g4 h; ]7 ~! j' k   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
8 m+ C/ Q' c) ]& d) e   set [trade-record-one-len] of self length [trade-record-one] of self4 }; x% ]' d, w" R/ y# a* t* y
   set trade-record-current( list (timer) (random money-upper-limit)): N5 g5 s8 w7 s: Z/ u" U8 i& Q( v7 N
5 t" s' J7 Q; {! ^  A: {$ j3 x
问题的提示如下:
) {, F/ u+ ?  q5 I5 A! S$ ]5 o
; Q" @0 w4 l) c) a5 \error while turtle 50 running OF in procedure DO-BUSINESS
8 e! e! a- a/ W+ e' C2 E+ M  called by procedure GO
6 ?9 c9 E5 [( |: ]7 j4 ~OF expected input to be a turtle agentset or turtle but got NOBODY instead.& w: Q! ^8 P* Y: k
(halted running of go)6 F3 g% w1 l7 q& ~" I+ M* V$ `* l5 X

( u9 E& N1 Y' e  r' R5 {+ ?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~~
+ a' r* W. {, k1 Q3 S  k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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参与人数 1仿真币 +30 +2 收起 理由
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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
% ^# x+ K. R* B6 Lglobals[) O: p7 V0 S7 Y  ?
xmax
/ R& u  n- {' ?. G8 Bymax: q  K# V( e; ^4 i
global-reputation-list2 M' r7 J5 C! g6 M' \3 t- Q
# V# R4 @1 o, q
;;
每一个turtle的全局声誉都存在此LIST
( m- X+ q0 `( I  v/ p8 O9 x! jcredibility-list) h: h* z: y: |* A6 h
;;
每一个turtle的评价可信度
( G7 ^4 }1 s& t& D& P  E1 {/ ]honest-service
: W, X- ]  X8 f2 _3 _$ u9 ~+ eunhonest-service
$ E+ F" C$ L# s% R$ J5 m* ioscillation
- Z$ R' Q& L" o/ C  \& V- Srand-dynamic9 w; `7 E- [: c0 h8 N/ S/ Y
]
3 \( `. x+ v3 w6 P8 ?9 h
- y( E; S$ h* lturtles-own[
2 Q9 ~. q; b  H+ v9 ?trade-record-all1 h1 V( m  o( j; D$ @
;;a list of lists,
trade-record-one组成
" Z1 V+ n5 G! utrade-record-one& {& ^% P  O1 F. u& C4 T- G/ |8 a; i# 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
, s( b# ?  j* ~: v* Z
2 t) M% u* y- Y0 p; Q4 n. k;;[
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]]( O! ^! L& H% w" Q# R
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]& s0 [: G! t. m6 x& t! ?3 r
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
. b! P/ Y/ @7 g/ A9 xneighbor-total
# e  p' w* Y, q$ ?* V9 \' w4 T;;
记录该turtle的邻居节点的数目
5 {9 j3 ]. S5 h4 Wtrade-time
, k! c3 B9 p- P9 O$ @* H- q/ p' D;;
当前发生交易的turtle的交易时间' P  S$ B6 y7 Z5 k7 @6 c, r
appraise-give
# X' j4 `$ O, [+ E;;
当前发生交易时给出的评价
( C! y  B: H& ?- z2 Dappraise-receive( o1 N) P4 M: O# K+ d! g- M
;;
当前发生交易时收到的评价
7 O7 B4 S8 K- i( \9 Jappraise-time
% v  X7 }: F( e" n) ]  };;
当前发生交易时的评价时间+ e+ d8 e" S1 O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* n3 L7 e& H! Q; q& [
trade-times-total
% V1 Q& ?* l. m* T;;
与当前turtle的交易总次数
  _7 K8 K& h' @$ t1 F. g1 j* atrade-money-total
- U) `/ `9 {4 J2 n% f2 N: U1 u;;
与当前turtle的交易总金额
: w1 G6 |' D/ {' Z, j8 z# flocal-reputation
# j6 k7 p% S# y% u3 e, C( n3 g- Fglobal-reputation: I5 f! G' |: j) t
credibility
$ P& x9 r2 Y% \5 |; P' J" q$ ~;;
评价可信度,每次交易后都需要更新
3 r# W6 n7 u( v; \( b7 Ccredibility-all3 b$ {1 c; R2 a; |8 {" f$ v
;;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3 d/ P! B0 o0 {/ q: {

" ~+ b3 y9 H2 s/ n! {9 t  e;;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
- L" y1 m7 z& ~- C* `' S' Jcredibility-one, V& t. Z" t6 n9 D. H  r' z  s
;;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people4 i( g  b. {. s1 ^+ U- c
global-proportion
* l" p% I/ t. n; acustomer
0 \2 ]# v0 j: kcustomer-no
# A4 f6 x& [- u, a( y- x* G7 Mtrust-ok; \6 a1 [0 Y; v9 n/ P$ x) L2 @; |# {
trade-record-one-len;;trade-record-one的长度; L& s/ r: ~4 M4 n9 ]
]) A2 U+ U1 U/ G, U- G
! |2 v1 p6 E" z4 n
;;setup procedure& w- A3 v4 q  L  @2 Y: |

- Y; x- K7 p- w# L7 k1 M* {6 C/ _: ?; fto setup$ U( X( h* l! ]

5 S+ X/ M6 S/ `  |ca

! J. j. u" D4 t) m
* q2 a: ]$ _% p, rinitialize-settings
/ D4 b& f+ e3 _! b: a8 u
% H4 v! D2 a6 Z/ N% g5 d
crt people [setup-turtles]

' n2 Y& u- i7 {' w$ v  e/ w
: r2 J( c9 N0 j+ T# hreset-timer
, F! c8 s) K1 B

2 C( E2 N( K7 `; A1 u) Q6 rpoll-class
8 k$ q& E; C* C( [$ R3 k

  w" X7 ~" o1 t. O5 |" c" ?setup-plots
' X5 G# p  z( |4 s# f! T3 Z! m

+ ]6 ^% c% A; m8 }4 Fdo-plots
$ j  m& ~, L' ?* g# r* y+ k
end
  ?; G& W7 s# q5 T/ [  y/ B1 {& t9 h% {! x, R* P% [- q
to initialize-settings
, b& R8 m2 `9 W" {6 E3 j& U3 K! [5 b' [! A2 C
set global-reputation-list []

6 ^7 R2 F0 z. i/ K0 N
( r3 d; J$ N6 L/ o& B. ]4 H3 Pset credibility-list n-values people [0.5]

2 ~( X8 b8 Z: X+ G+ A
% W0 w" o2 X; g" s8 f9 kset honest-service 0

$ ?. {+ {- F: D4 W1 @7 o. H" \* A7 F; [3 z$ ]
set unhonest-service 0

" q: l( r0 _( i8 z' N8 |, N
3 ~( W) W2 u: F1 xset oscillation 0
* a8 z; X& l: B4 v9 N( D# r6 ]
: N4 y7 _. f3 ~1 y$ Q, \% s
set rand-dynamic 0
' B' M: p0 m" y$ d: b+ y$ i4 @
end
+ |& C9 h8 X# M7 M/ B+ M3 r1 t4 p* h- M
to setup-turtles
, [; [, P2 D8 g) Fset shape "person"
- Z2 ?- ~1 [1 L1 Hsetxy random-xcor random-ycor
- {2 S5 o& c. `3 b: k# f& k- kset trade-record-one []3 w% m7 {) e9 c/ ^+ l( l. w  Q

/ o- ~4 ?' F: S8 t8 p! M+ M# h' pset trade-record-all n-values people [(list (? + 1) 0 0)] + i4 ?# ]; D9 [8 ?' p2 G6 Q
$ D5 Z: c# P8 Q7 J
set trade-record-current []
, k! \3 y' z6 j5 k' b6 x0 Yset credibility-receive []
# v* g; {& M* f+ ^! [2 @( qset local-reputation 0.5
" y4 G0 [+ S- r. O! {+ d5 u+ Nset neighbor-total 0
; m5 G: ?% k9 s% X( s# @set trade-times-total 0
. v! r& n; t. T, e" Y- }; g" \set trade-money-total 0$ I. j  R' B* g. Z/ E  c* d
set customer nobody  F& b* |' q5 H0 q' V8 @# ~
set credibility-all n-values people [creat-credibility]  w+ d% H# ^0 ]0 U
set credibility n-values people [-1], {0 \7 P3 P( Y, H2 _2 Y
get-color
( r, f2 z! K. {0 v( {; q

) a. }, u2 m3 N1 y% \! S! Uend7 f) v! U5 ]9 u3 j9 o

- E0 ]. S3 O+ a9 bto-report creat-credibility1 x4 x/ ]' Z, ~' [; l. d
report n-values people [0.5]
/ L+ r" U8 z( w& j  [end
' P/ k1 D/ m* ~+ T/ g8 {% v: v- g, z4 M2 {' M
to setup-plots/ z/ l$ G5 L9 O* ]
3 s7 ^4 ^/ t* }% e
set xmax 30
' _7 x, p' V1 J' ]8 _3 o

. n8 S+ C" m" Z8 G8 nset ymax 1.0
. m. |' ?' v+ I& E
) M( l: L$ y% ~5 K
clear-all-plots

! d$ S4 [& m1 O" A+ R8 O. ~
% d5 b" t5 L* ?6 P& Osetup-plot1
" |9 l2 a) u5 h! K6 ~+ j
5 m) W. M( @  c
setup-plot2

; k. J8 W" R2 f5 J5 E% y  _2 A6 ^2 n+ s8 q! u
setup-plot3

* N0 H3 Y. q/ W( f% v& t; aend* F5 K* s  l3 ^- i; j+ g

. ?) B# x& f- d6 ~+ P3 q4 D;;run time procedures
2 o" q2 ~9 S5 A% A8 Q4 k
% f  a5 C8 Y2 nto go
/ W% c4 j* G: b% T3 F8 x4 t, n' k1 O$ o7 E3 B' H& W1 a
ask turtles [do-business]

- p# \; L- }2 c, nend5 d* b6 \5 ^/ O- t1 ?$ X' c& k

6 R; P  N5 C! \0 W2 |1 c; P. mto do-business
5 Q& V% R, B; Z5 \$ n; c
. `8 Z0 m3 k/ h4 n1 P* O5 T, Y
7 j. c( F1 I# h( g
rt random 360
/ _3 M& x, }' c  N1 b8 _' K

1 ^" j2 h1 Z9 k. M& m' Z2 X) Jfd 1

3 b" Q/ K- L7 a0 |8 L! P3 ]& `2 j1 n  \$ P; [) b6 n9 o  k# Q
ifelse(other turtles-here != nobody)[

& Z- K3 f, x+ M1 G- e5 t+ o
# O! B0 I- S7 L5 P9 N; rset customer one-of other turtles-here
! J, Y2 I$ A9 z% }! ]0 n2 F
( o) f  Q' k0 o. y" x
;; set [customer] of customer myself

: z$ F! \+ a( v8 t' ~
  [+ n: r# W0 H( k% Z, b7 fset [trade-record-one] of self item (([who] of customer) - 1)5 u' i; a4 @# l6 O- r& q0 t
[trade-record-all]of self
1 b. x7 Q' {5 r5 Q3 @) `0 G;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% d. j2 k1 B5 j/ @+ ]) A
! ]  }; }2 }9 A) k* x$ e2 p
set [trade-record-one] of customer item (([who] of self) - 1)
: {7 U. ^: i! h8 Y5 l[trade-record-all]of customer
8 k8 _8 q1 ?. s# `: S
7 w3 F& V. n- h2 Y5 W3 D
set [trade-record-one-len] of self length [trade-record-one] of self

! r" J1 X4 t/ N. j, G* }+ z5 |4 G* z: C8 r2 b" g
set trade-record-current( list (timer) (random money-upper-limit))

- k0 n/ K( C6 A1 n4 f+ f  G- b6 o9 Y( c% Y3 w+ T
ask self [do-trust]
' c9 p3 e$ L. u0 K( u$ h+ B" U;;
先求ij的信任度- }) {8 h# f7 |, E0 h

, W7 e" T* J8 D& m( n$ d4 U; _if ([trust-ok] of self)
' u3 Z+ ?- I. `9 O* P;;
根据ij的信任度来决定是否与j进行交易[
2 [* X! O9 u( \& C/ P9 x6 Q8 D9 Q: \ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
- U, Y- x; Y: C0 w4 c' X8 |: ]+ D- x
[
1 P, `5 B5 A' y; [2 S( _  o
2 ?) b* E5 @8 k9 i) J% N3 l: t
do-trade
. B  X2 e" a4 V$ n- r% V* q, f
0 x4 a4 L) T6 @8 L- Q5 i
update-credibility-ijl

) b% p' `1 `  Q% u8 s# M- O) w8 k8 R: X
update-credibility-list
- X- e$ }. G7 r8 `' j" k

; m6 k# l( F' ~2 z4 {/ V" t
7 B( T3 N: p* f. L% `update-global-reputation-list
* ~; ^1 `1 T+ s
" \% `0 k  i3 @, I+ L* Y( q
poll-class
! Y/ |2 W$ B( H3 W( J

5 b4 C5 J6 e& k0 c! ]get-color

: w) k, x' q; L. ?2 A; A& L3 I- B7 Y/ x' R5 W  F# _/ [
]]
# ~" \& h8 o' Q2 k% W7 W- ]) r: }3 f$ C: Y
;;
如果所得的信任度满足条件,则进行交易
- n2 @6 p1 K; v
- T) X% R4 j6 |5 J0 z( q- b[
! J2 V) M# o7 t' v2 S! r" o# K

  l5 l" ^6 }! J* E6 n. m6 O. ^rt random 360
- D) v" E4 k! l2 Z4 m. G

7 w1 _2 u$ b4 A& qfd 1

8 M/ x1 W7 `/ Y: E( b* k7 P5 G5 k
]

* |+ m# S3 c6 L9 r  {5 {. P! c+ n8 {+ ]3 G* A: C/ N! w
end

! Z4 [- u8 A  ]( ?$ f
+ ~, \) K- M7 {4 w. B) Gto do-trust 0 n! y/ [9 S$ Q5 f7 E
set trust-ok False. K4 f& i' b  c# d) t

+ N" z: M2 g5 E3 a9 ~
9 n; F% z. k7 V; e0 i1 I. C7 q
let max-trade-times 0
/ w; G! _: R/ _. Jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# p5 x5 `/ j0 h. A6 |6 X( n( Glet max-trade-money 0
3 t) j% H  i8 r1 v0 iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# i4 ~. n4 }3 i: d, A1 l, _# ]$ Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" `) W7 A% W, [* c2 I- v; n  m

8 E, V+ E+ K4 @% l
8 p7 c6 n9 N  \( G; o- M/ ?
get-global-proportion
7 U6 v8 Z( a, X  }* ?2 slet trust-value
2 Z, Q; ~4 z& U0 E# Jlocal-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 A# a9 z- I1 h& Q
if(trust-value > trade-trust-value)
- u& T7 O3 a2 G% U& p$ Y[set trust-ok true]8 U! g6 a, c2 Y, T6 f+ q
end2 ?) W1 D# g0 e
' w* ~( ]/ p3 o* Z  f3 P
to get-global-proportion
- x% D7 O9 ^, w% j: {4 wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( ]( k: m2 S& p$ ^0 u. f" S
[set global-proportion 0]! Z+ b3 n7 F* H9 ~7 \
[let i 0
4 f8 Z  |; F/ y: D" z4 Zlet sum-money 0# ~! m% M- ^4 @7 G' A) d
while[ i < people]
  D) \9 f3 `5 h  N) u  X0 \8 L[
( q2 W  x& @  k8 }( P" H' Wif( length (item i
& N9 G6 i& N0 k7 b[trade-record-all] of customer) > 3 )
: G& d- N0 K' W5 e" z) _
[
  F; _+ s- u2 W7 f4 Q1 f, S% c+ Vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, L7 F: q8 B/ \' ?]' c$ Y& g2 d6 S
]  j9 a6 A; K8 o+ p
let j 0
0 O2 O* _$ S& Y* M- F7 N9 m# Alet note 0' ?3 G# I( Y8 C, j' |6 y; }$ Z+ J$ n
while[ j < people]
! |8 K+ z6 c, j# i4 W[
+ S9 w; w9 g  Kif( length (item i
' J. }9 F8 N7 l8 v, h5 P* K[trade-record-all] of customer) > 3 )
$ Z7 \# m& ]6 T$ A& t( ]
[
2 W7 r: X; f# z5 ?8 ?1 l% D! Hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; ?, M% S" C5 Q. l[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. A, U& L8 [# Y& i/ Q( ~+ C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- y# }- n; ?9 D. Y* r7 c# Q# P* X]
8 [0 p  }; {# ?' P/ m8 n+ []
, M$ U: W$ n0 q0 Z# R: p& z, @set global-proportion note
0 ~+ U4 ~( i3 z]" ?4 k& m9 m' j  E- a+ M: a
end
; N# [, g  n( M: H4 S  }3 `( ~+ _5 l
4 v6 V  E- |# d& D) m+ t& ~$ fto do-trade
: Z; M4 w* G( x( k;;
这个过程实际上是给双方作出评价的过程
) q( N- E( h# }set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
+ }0 l6 n9 Q8 m5 C1 o+ Z& @$ oset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价& o2 i; |$ G8 \6 F( |( B! @
set trade-record-current lput(timer) trade-record-current
& N# `, R2 G* A* i3 L5 e;;
评价时间3 w( G' o. Q  I2 ~
ask myself [  e; n" g# P7 f! i. o0 H" r
update-local-reputation% N' o" \! R, q  o! V# I
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 \4 ]6 c4 b4 s- K& P5 w! \* f/ F9 N( z]' k0 {- N, d* m
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 o+ \) J+ \* D% L' U  p4 g) k* H
;;
将此次交易的记录加入到trade-record-one
: o' U9 ]+ ^# N0 h+ @, dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)  T: C6 K8 o1 }1 U7 H. }% `
let note (item 2 trade-record-current )
: @7 s% z& u; W) |- U2 u' ?set trade-record-current/ o% P6 `7 t- ^3 U& Q- J+ C+ G
(replace-item 2 trade-record-current (item 3 trade-record-current))

; W% d# n9 F8 I% Zset trade-record-current- @# H. n, e, Z* D; N" S
(replace-item 3 trade-record-current note)+ x, p! r% u2 s  J! Q
4 u7 M9 b1 f4 d# C1 s# Z
( I# `$ y7 K8 @& p) V9 I
ask customer [* K' K% J; T1 l$ X
update-local-reputation1 ]  d' y- v( O" u& g0 b
set trade-record-current
9 h' y: u7 b7 F* ^2 Z! @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ K5 H$ t: U1 p2 T3 Y3 h
]( B# {5 |4 o1 O5 G6 R

$ m( W, B+ Y! w  ~6 Y; c
  w8 a6 N' ]+ K/ j, ~
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 W7 \3 M. s6 _6 d8 C  i7 p6 @
: W9 o' K- \3 h4 h; u. E0 ^- z, n1 O+ P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# X2 F. c2 {9 B  V- e, Y: i
;;
将此次交易的记录加入到customertrade-record-all
* `' b2 Y' q5 V! W. Yend
( O" v0 D9 ~- z( p- }. V0 A7 h# |" V* g$ @- F5 z
to update-local-reputation- a2 I) J: W/ u& w( S1 ?- x5 J
set [trade-record-one-len] of myself length [trade-record-one] of myself
- |& x- ?, ~1 ~5 t' K& h7 y
* [0 u0 r; g. p5 D* f
' \" H) V0 y. ~! H2 X5 U: J;;if [trade-record-one-len] of myself > 3
5 r) G; Y6 [+ B4 o0 ~* h4 G
update-neighbor-total
- {9 n& M7 [2 i- v;;
更新邻居节点的数目,在此进行7 S6 z$ K, W; e
let i 3
6 x3 v5 S" y6 G7 t! glet sum-time 0
+ z9 n0 U0 E8 V% e" q4 t9 Xwhile[i < [trade-record-one-len] of myself]
- b2 A6 g6 r; X2 I& j[, W3 G3 F: _- N2 G4 e! L" r
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 ]" x1 n! b$ w9 _. O/ e% Uset i0 W" V2 Y$ \1 v+ b* S
( i + 1)
8 X1 n- E3 k# \( D
]
: v1 H) t% S7 C* ^& p9 v6 q1 Zlet j 3" F$ L' B- `5 z: o: E* ?* Q" C
let sum-money 0! e8 E& a# ]  V
while[j < [trade-record-one-len] of myself]
% {! R. f9 @& K; ?[
1 p: T9 Y% y* k) f" yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" N: a* k! B- \+ n1 \" F% T6 Wset j
, k3 X/ I( h; x) u# O' U7 e( j + 1)
' A- S; f1 H6 Y! v3 y
]  u  J3 k- U( l1 V" t; K$ D* P' {7 V
let k 3
" c& ?9 E5 {: c; ?% K0 R2 ~let power 0
' R2 P  j0 p" T: b: O: S4 Ylet local 09 s/ s, t$ R- O: \8 p, g# T
while [k <[trade-record-one-len] of myself]
. w) E0 b+ H# r3 O6 F: M2 k3 G[6 [& s9 q6 p0 u  |( i
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)
" }- w4 w& O- ]' Q  oset k (k + 1)6 E, l, v9 s& i8 }) f8 V/ p* N
]
7 }* O6 t' }0 E! X  |set [local-reputation] of myself (local)" \: S" H* c3 p5 y1 R7 {2 S$ J' X4 f( ?
end
* I9 X3 T3 @( k4 r' H4 f& L0 Z- x% a- f$ n
to update-neighbor-total0 Q( ^% v( u% }
* v  H! Y$ B' Q" F( Q& H
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]  U; L& B8 L! R6 O# c
$ g( `0 F. O# i/ Y

$ n! f. l) I" I; v. Jend
3 T7 S1 d8 L4 I1 k$ V* z0 y, |" Z4 J2 P/ V' K" H* W+ Y5 ?" E
to update-credibility-ijl % b2 L/ S3 B6 F
- k4 s% j' M  C4 I) f
;;
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。
& r0 [) A% [/ u& b" elet l 0" y/ R4 O4 i+ I
while[ l < people ]
4 F: A$ R: N2 J8 L" I& K;;
j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
+ r6 m6 O( n6 i7 r& I/ b8 w% y# @[$ ]% F7 U" k+ D: Q0 i8 l0 j* d
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* a# r( p) R* }& H5 {0 o( wif (trade-record-one-j-l-len > 3). e. p0 }5 m! A/ W
[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
( ?) z. D) Y. Clet i 3. {  N2 f6 l+ |$ Z% [) y, }4 t
let sum-time 0$ E6 U# }6 f( ^/ o4 d9 X
while[i < trade-record-one-len]' z; Y; u- E9 B& b* r% q- C0 d
[! }% I! k" M7 k
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' v3 X1 h7 I' Q
set i5 m* P5 c: S9 y! ~8 S
( i + 1)
( Z1 F. w2 o/ x% K! d
]$ n' i6 C4 Y0 o  V
let credibility-i-j-l 0! i/ |9 c! u; ~' X* e5 F! p
;;i
评价(jjl的评价)
% r# [7 p3 x. b# K2 L, E# ^* Hlet j 3
9 e' J- L1 z$ rlet k 4, ?! q- t/ q: Y, R2 b( n* H
while[j < trade-record-one-len]' D/ |) v) {8 F0 e& C
[
9 g" q6 m, N) h% H* `7 I$ Awhile [((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
3 W" s! f' ^" \' U7 f$ Q  ?% Iset 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)
% s1 `, i' o! T* g& y- fset j: x, X$ ?+ y* D0 c& }$ N
( j + 1)

. h4 r% R4 `# `5 k]- m5 @1 _6 V% Y7 K8 N1 k
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 ))2 X3 _* \* M. t3 R' k

3 _$ B$ o1 i; y4 J/ s
. i2 `9 `: b) h2 X0 N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" s$ s% f3 p6 j# Z
;;
及时更新il的评价质量的评价
/ ?0 L2 F. M1 |/ kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ b0 r4 M- a* v/ b" fset l (l + 1)6 i1 @0 y# i- L! w" o' y
]
$ q" G+ k8 a. g8 K0 @) I$ S7 s+ Pend; I4 W- y; p+ j1 v: s4 d
2 T( \: D+ e- q  L
to update-credibility-list. ]% t( E0 `/ U6 [
let i 0. h* I: F4 H; b, ~6 ^. E/ T! F
while[i < people]
5 Q6 @/ T5 Y7 I/ Q( I. ^5 R2 A[
" y* e. n$ Z* L) p& }" vlet j 0* P& o7 w7 i4 O9 }! v% z( P
let note 0
5 M0 }, B% R( _  [  u9 w0 X+ Hlet k 0
& y4 _* c! |0 V3 e& k  ^' O;;
计作出过评价的邻居节点的数目
/ X  w2 g. {3 T5 T0 U; ?while[j < people]' v9 {+ K6 ]9 G$ {$ K4 ~  Z
[
0 w: ?) B) ]$ @8 Nif (item j( [credibility] of turtle (i + 1)) != -1)
" P8 g. p/ X5 K/ R3 m. B' ?;;
判断是否给本turtle的评价质量做出过评价的节点
# V( h5 C) o9 l5 ~- r" u/ {" t[set note (note + item j ([credibility]of turtle (i + 1)))5 d1 J. E' g# J/ k( {* s& A; R
;;*(exp (-(people - 2)))/(people - 2))]
3 o4 b; W+ A1 N" W% ]1 ?
set k (k + 1)2 k  H! A0 M! s* x
]
, ~4 \) [! u  A$ Q1 P; N& y6 w& dset j (j + 1)  o1 b4 @9 l7 Z$ F  v5 Q* I
]+ W) x. g) J$ ]
set note (note *(exp (- (1 / k)))/ k)
& ^% o8 X" x' i$ G3 Pset credibility-list (replace-item i credibility-list note); c- X( n4 S" K& j2 g4 [. f6 W
set i (i + 1)* \7 J4 x' W3 ^" R* v( r8 ]' l$ b# `
]
5 N8 a& B: E  ]4 @end* \# v' M8 S9 f9 n, o3 j+ q
6 E7 K! ^" m- ?0 O  U  F- ~) f
to update-global-reputation-list
  y, P. O; X; V3 y$ flet j 0" k- V) \3 N5 i; Y4 V) |3 t) z# N
while[j < people]
9 T# ]( s9 P" _6 q$ z4 m" u  f3 o[/ C+ O9 E' s9 r+ v  n, t: W1 e
let new 0: J' M& ?, d% E
;;
暂存新的一个全局声誉, I% J/ e. h& I, J
let i 0
6 V( T7 y1 K$ ]1 llet sum-money 0* B8 P  r* c) \- y: O9 v3 S5 F
let credibility-money 0' f, k* T: D+ H  E
while [i < people]
$ x- z% I# f. F% f[% `! q) C- v  ?7 A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ B2 [; o6 m# H9 F% Jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' o$ v  G5 l0 M/ M3 N
set i (i + 1)
" v/ T! [  V. U]* q; u# `( K7 `3 U( L
let k 0. N: k  r4 w# v  n% ?: F& o+ {/ {
let new1 0" Q5 W* r: m4 D
while [k < people]: o; Y% d4 b8 b3 u% r+ e) J+ K
[
7 U) }8 l) J7 z& n; Lset 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)7 u8 A4 d0 @6 S
set k (k + 1)" q1 ]7 |' x0 h& b/ R
]' j1 h9 }/ R% [1 ~: V, D" y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ a; e& W1 Q0 @
set global-reputation-list (replace-item j global-reputation-list new)% {  ?# Q9 g4 {" _' b3 L
set j (j + 1)" M" K( t+ v2 F1 u$ e
]
% f' m- c0 A6 N/ x- Eend3 s0 D; h% ^5 l1 R' w' J2 D

1 z  O; {+ l% q7 Z" \8 P2 r# B, R" c2 J1 ^" n9 S% r% f8 ?2 f
$ S8 m6 D, O9 s  w$ I
to get-color& n! r! p. N3 z

7 a& u+ y' F5 v, S6 Zset color blue
7 W5 k$ P  d1 ~8 D1 \
end
2 ^# ]6 e# c0 _, L5 V
* n: l( H& ]( i  @8 C) P) L  Rto poll-class
6 t& F. n4 b5 M" X: Cend
. @, F7 B4 S# W$ k5 u' x3 T7 @4 J6 Q8 a( z
to setup-plot1- M- T0 [( h7 F; I4 h) S: Q
4 a) `( |* K: x, g0 }% j
set-current-plot "Trends-of-Local-reputation"
6 r: Z9 a4 c9 p
  A! C3 S$ g* f. o' @
set-plot-x-range 0 xmax
- {! I( z. p7 Z4 X, Z* s

6 {( _. k& U+ w/ p# kset-plot-y-range 0.0 ymax
) W7 u' i1 M0 l  w/ x5 B' u
end3 a" j. [3 b( e* B, a

3 m$ m2 u8 {; M# [( t7 m) i' h3 Lto setup-plot2
3 `! q+ b5 K% B, p8 o
  X: N2 A  K/ q% L7 g& O6 ?set-current-plot "Trends-of-global-reputation"
7 |' w$ U! n) E2 ]
) _- R: r7 m0 h! L* \  x3 L
set-plot-x-range 0 xmax
/ x) \- G7 n8 u5 Y

, e$ u5 e0 T+ s6 wset-plot-y-range 0.0 ymax
. o. _, g0 ^- r0 b
end
0 V' k4 `8 f3 `+ q. q# {) p0 C
+ f  N, e2 @" k8 cto setup-plot3
/ {/ U# b% M0 E2 T/ b! ~
, Q0 F; f- W/ I3 O2 fset-current-plot "Trends-of-credibility"
; w6 ]0 L; ~, z3 v
' E+ W4 y# \: g$ |7 w8 S& \8 c
set-plot-x-range 0 xmax

) e9 f' @( \6 Q; I. B3 p
0 i4 X( S! m7 _: G# {; cset-plot-y-range 0.0 ymax

) {5 i. I4 {8 F/ h& Hend0 r  t, F% G; A4 l' Z

2 R7 G  Q6 B! Sto do-plots
* ~6 i0 D& D+ p. R: J9 a+ aset-current-plot "Trends-of-Local-reputation"
, ^8 c# J' W7 r) S) E- \0 m2 sset-current-plot-pen "Honest service", w" j6 H5 j6 m4 _
end2 J7 i5 M6 o5 f6 z# S: }
7 ^& u1 f; ~& I: N
[ 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.7 r9 n# i3 q( [' _3 a

& ]* ~, Z% B2 M# s) h- 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?
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