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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:
+ `% c0 S! I& Cto do-business * A2 ?# H4 z  o+ C
rt random 360) y# d* \: n+ x* M9 [5 Y
fd 1
% ^! Y& n& V$ G( J& q: ^2 `. N ifelse(other turtles-here != nobody)[7 K5 B3 S# i! j9 [! {+ S
   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.5 X  [- s1 p4 D. O2 Q
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    6 @; Z$ N7 |. }5 o
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer7 W( _& \7 e9 M) S9 {' K( g. h1 D
   set [trade-record-one-len] of self length [trade-record-one] of self" S& F: z" ?  Y) E
   set trade-record-current( list (timer) (random money-upper-limit))
% w' ?$ x3 M/ `4 x+ J3 t1 s
, X3 I- ]4 t/ C& ]+ Z$ p& q  q9 ?问题的提示如下:
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. O6 O# u/ r6 c' ^* f8 B6 uerror while turtle 50 running OF in procedure DO-BUSINESS$ N% ]/ O- J2 X3 i
  called by procedure GO' n) j/ ~5 Q1 s0 C# f$ }( w; h
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
% `" v& A$ @4 v% V! Q$ S+ n* ~
(halted running of go)) x) G0 ^# x% G' r  h7 r! H. n" m
: n: U& D5 U7 }$ ~
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~~1 B" Q" c: L2 M7 U1 S
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
, ]& q5 u9 x. [) L0 {- mglobals[& p( Q4 p  w( D0 t- j5 J' j
xmax
) F' J) K1 V) Q" tymax
# M8 v* B( s/ x. P( U* V* s0 {global-reputation-list
$ _2 o9 q5 ?' }: c, ?6 r% d
; L" E. B9 z6 w8 F- T( |  K;;
每一个turtle的全局声誉都存在此LIST5 Z( n1 Q  _* N
credibility-list3 L3 n" U: E" ?5 j- ?% B# f
;;
每一个turtle的评价可信度7 C" M+ H6 V- E
honest-service
" W0 y) W+ f4 P3 G) L. }$ aunhonest-service
! S0 d) i& z# u) Yoscillation
) C- y8 ^1 n& |2 }rand-dynamic  x5 u/ c( c. ~
]0 g9 k2 }. n3 W

% e6 O8 o; [, J; u- }6 m4 W  z: |, ?" \turtles-own[
' t2 X- A% ?7 W! Jtrade-record-all
3 Y' B2 v% `, l. H& l8 X;;a list of lists,
trade-record-one组成" `/ A! k/ Z( C2 Z
trade-record-one
" \6 G* _, x. P2 C: R;;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  X5 |* s8 a4 f0 j. o& o
, d% _. k7 W' `" |% h' X/ L
;;[
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]]2 P7 ~& w6 n+ b, \3 V6 b$ \
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- B7 T- |( c' {0 w3 J7 p; I8 mcredibility-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; v; }# v, c2 j' f) h
neighbor-total
6 P9 p& }5 A2 J0 j;;
记录该turtle的邻居节点的数目  h# V# R, v5 ^
trade-time
: y. [+ w- H' m  Y+ {) v;;
当前发生交易的turtle的交易时间
! B+ Y. C6 J6 \/ sappraise-give
$ T  y# w3 Q+ ]/ I# ]$ g  P7 \;;
当前发生交易时给出的评价& E* R  O; d9 ^% H
appraise-receive
$ @" F! N  D$ m8 C8 {: H! t5 ]0 ^;;
当前发生交易时收到的评价
) Q" i& ?, ]5 U' N- aappraise-time
" _6 O! b8 n! o+ X8 H' B% W4 v;;
当前发生交易时的评价时间
3 y" U6 n, c$ r  a. ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 T9 ]- J/ B4 l; }( u+ ]trade-times-total! r$ N# r3 U( @( p1 k' y1 ~" H
;;
与当前turtle的交易总次数
1 f5 O( f4 p5 V' F1 ltrade-money-total
; R  [9 g. S7 j# c% W( ^$ \& A( T/ q;;
与当前turtle的交易总金额
" a, e2 R" c" j+ S! Y2 \local-reputation
, v6 w# ~9 V+ r% `# dglobal-reputation3 D$ Y- f: g) u
credibility5 [! |) k3 L  a1 ]2 s  J. l$ U8 K
;;
评价可信度,每次交易后都需要更新0 d; s+ y, D& ^1 e  X) [
credibility-all
5 @6 P2 ~$ q9 _: h;;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) V7 ]1 K" D/ J: |- Y9 z+ d
! N# b2 i% N8 C: T
;;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
% }+ C% G" _7 U7 ^credibility-one4 s" A' G$ W- \& [' j' D
;;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
* \3 R& h' [  jglobal-proportion
: y7 d1 b9 V7 Q" [" I& J8 z$ ecustomer
' [$ E$ u5 x1 o4 |1 G( n6 rcustomer-no) q. z+ J6 ?5 x0 G/ T# E
trust-ok+ \: x. L: q% p" \
trade-record-one-len;;trade-record-one的长度
% J) k5 f7 I* K  S]% Y' A* l  e( g
  C8 ^" T; s3 O3 Q
;;setup procedure
; G0 v* x8 G; `6 o- I% M% l
9 u; K. s! x/ j: O+ ]3 {4 `to setup! W7 @  ^4 Y! c0 P7 B( t7 J/ k
3 z* }& z4 D) C) Q# Y( Y4 u
ca

' ]5 S# y) d' G) ]* Y) V0 w0 X/ I+ S! e
' q2 a5 g/ y0 b  @# Xinitialize-settings
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- C/ m: L' N& S4 [  o/ ~1 ~2 f7 L' d
crt people [setup-turtles]

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& M. A7 Y/ x- P, k/ K1 z* Ireset-timer

9 {( W" e+ T# n: U' Y( f, W5 h2 X8 n  Y- b
poll-class
/ o; Q. o% _# j% t+ `* B/ `

) g3 ]3 M7 O2 @9 Gsetup-plots
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7 [) w3 k! i" I# a# D' ^9 edo-plots
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end; I1 O- ~) p$ L4 p( l5 I! r* u3 e
$ d. a- A( l& y" u7 S- \. G
to initialize-settings
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set global-reputation-list []
% Z/ H  v- e& j
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set credibility-list n-values people [0.5]
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set honest-service 0

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* k- d$ a% v: o* c, J* X8 s4 mset unhonest-service 0
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8 Z& Z) L) s; e" v7 E4 F
set oscillation 0
' }! C9 I8 p/ [  j

$ N$ ~3 [6 m, a: L! Oset rand-dynamic 0

6 k& I. M/ w! W) I4 R$ Gend; i& T# Z$ c/ H) H7 j+ \% g

. y6 S& z7 w, a3 k; Y6 vto setup-turtles " T+ p/ F* o; ?3 _& W4 F
set shape "person"
2 a3 Y3 [/ U6 M5 c- N/ J* nsetxy random-xcor random-ycor+ N4 L& p5 @8 P
set trade-record-one []
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+ V3 r+ L4 n# T) U: A
set trade-record-all n-values people [(list (? + 1) 0 0)] 3 C8 n2 C' o& t3 R
+ x9 h; G4 e1 L1 c* _  K% L( h
set trade-record-current []
6 B1 p: L/ w% ^, g* J1 nset credibility-receive []
3 ]4 J/ h! N; t" W" N3 R0 ~, Z5 ~* wset local-reputation 0.5
) d  A% o4 n$ c; e1 Eset neighbor-total 0
$ X8 n, D! U+ e% P2 D& G6 ?set trade-times-total 0) k/ D9 x, L6 S! N0 e# K' R
set trade-money-total 0
& [: c2 V8 f5 m, k5 n# ?8 N) a' Tset customer nobody: l. v. b2 M0 y
set credibility-all n-values people [creat-credibility]
/ ?( \/ A& j0 e- V$ p. A! qset credibility n-values people [-1]
$ O+ X" T! d! X. ?1 Vget-color
# ~! e3 Z' ]3 Q) T: ^5 |

' c. u/ T; s1 r+ i- \end+ Z8 v) u  \6 U  S. M
2 a) t# o& l7 `  k9 o: D8 ~
to-report creat-credibility2 m5 T- a1 L8 s! q
report n-values people [0.5]
: H8 a: I5 [# Bend
9 l9 L3 r4 m( O, r' B+ x5 J) ], M# R
to setup-plots% i4 L3 Q+ I; n( w1 y6 ]$ c' n
- b& B( K: P7 L4 d) n
set xmax 30
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* A7 O8 r9 y. P4 d
set ymax 1.0

4 o/ @/ T# _( }/ T$ \! m& X5 ^4 Q1 ]1 K' U
clear-all-plots

& E5 v) Y! P; I5 E- r1 q  |1 g9 ~3 H' T' W$ s
setup-plot1

- L4 e+ C2 `% X) R8 p# ]! H8 l1 q7 b" p( H& n; N8 q+ e+ r
setup-plot2
& M3 i( ^' Z! g6 `
2 T; w4 h( L1 {4 f2 H/ U+ z. e/ j2 H
setup-plot3
+ O, L) B0 \. n( L& _) C# ^: n
end$ i7 Z! V- l) z7 z* c

* y$ P1 }  {: w3 i' D;;run time procedures# ]( V+ A( f3 S! A6 `  M5 F+ }

# X, p2 v! w7 {' |; w  b  _2 v/ _to go
. a: Y& f8 Y' n$ e( E- e9 W1 I# y# H9 u8 X8 v
ask turtles [do-business]

- o  y) n5 z# z" E! uend
0 l1 V* b4 x, x1 `* v6 K( p: B+ s7 y8 H. N4 v
to do-business 5 S' I2 u1 q$ a8 f2 K
* Y3 k% m! F" Z8 o( }/ N% ?, @
# G1 y4 `. S# e  e! @6 L
rt random 360

7 b4 y$ ]0 o/ K# {: K3 O
/ }! R* F4 c; g3 Z9 x- E6 g- F6 Gfd 1
1 U" y* ~- Y8 r) @
  O, E5 M$ V7 O9 C8 P3 _" |
ifelse(other turtles-here != nobody)[
! b) C3 r! J! x

# ^! ?2 H" S. g6 @set customer one-of other turtles-here
8 ]2 x8 c- V' f' e9 `
7 {" [4 V# o; j$ _" W: U# A8 M
;; set [customer] of customer myself
, S" V* a. j9 E  [2 \5 y' T9 I8 G5 I( G7 R
2 |, _( t$ I/ ~+ E4 r  z% E
set [trade-record-one] of self item (([who] of customer) - 1)! ]* ]# g! W. x9 M/ F, r3 L  @2 \9 N
[trade-record-all]of self
$ Z" _, C5 X* O- s1 C;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# N1 o+ ?  j) V, [
9 X' E7 |" X& ^( y0 V4 Z: e+ C
set [trade-record-one] of customer item (([who] of self) - 1); x/ W$ w. Y1 J  i/ Z% h9 W
[trade-record-all]of customer

" F( R  Q; Y8 v7 L3 `1 T0 s7 I) e, p6 s, x% p  B2 a& _
set [trade-record-one-len] of self length [trade-record-one] of self
# ~' ~- ]; k, m8 c% O

! ?: ?2 G& B( b; Iset trade-record-current( list (timer) (random money-upper-limit))
6 J2 r& w& X& l; k/ w" e: n, U
" }3 x' k" |" p+ E  Z
ask self [do-trust]! ^1 {( U- b  m' v
;;
先求ij的信任度
3 @$ c8 E6 P& G! g4 `/ {4 x7 ?1 q7 o/ Q+ J
( W6 e8 j2 ^% G- w2 W. M8 @if ([trust-ok] of self)
: n- T- [, s* `+ ]: i;;
根据ij的信任度来决定是否与j进行交易[
; b* |: Y6 r4 K) `5 A  G6 W& t# task customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself$ I) y6 }' [' x. w- z. J

6 e( [) J& `* W( W" a[
# y# m7 @' {$ n+ I' R- X" m
9 u! B. e1 L1 H, i4 G/ K6 z) ?
do-trade
! K# q0 ]" Q. @+ W, _$ z; D+ \# h
; p9 R( @6 r8 h5 l/ k7 s$ C9 W
update-credibility-ijl

- i5 s8 R0 P' Y
" e$ l! j, h' O" Z4 Yupdate-credibility-list* |1 S& c6 B6 x3 x" S$ o0 k$ ]
" o5 c3 ?  Y1 F; F
/ z5 r1 Y0 e6 Z/ H( U/ E( t
update-global-reputation-list

2 F! A* x0 F0 h; u0 e/ D) {
# V- t  u% _  B. V8 C/ Ppoll-class

: D! o+ B; \8 b7 `3 j; E2 i, k' e: T. o: E3 M0 X/ \
get-color
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. I* q5 N3 z- s6 a. D: u& S8 Q9 ?
]]) X4 u. H2 r; r" }5 Z- `
$ d2 w/ v* P$ `. s! D& f
;;
如果所得的信任度满足条件,则进行交易
: O, F, R# Z: X1 `9 K" ?1 A) ^" F: _2 z1 N! o5 `* a
[
- h4 j- e$ A8 |9 M' H" T

$ a. X1 W& g3 ?rt random 360
! \# ~5 D% G8 I0 `4 S
! K6 q, Z8 ^7 N5 {+ U
fd 1
6 o8 C( P* K# H- \- Z1 |

# O& X, C9 o( G( F2 p7 R2 {]
1 h* ^% _0 V% M  i1 K
# F3 e, _; I; f3 \/ m
end
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2 B: e  s( U# B1 ~- z
to do-trust
4 B2 X7 |, T/ j1 \6 k) Qset trust-ok False& A  _! B& o1 G' u5 S2 W
* ~6 N) x# W" f! t' k; B
) T: S  c" |* V9 [- \; A7 s0 y
let max-trade-times 0# o! U+ y1 d; m, Y8 p. n# H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" s4 }; O- u% O  I
let max-trade-money 0
- {7 O9 K% O& P; a6 v1 ?7 ]% Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ Y/ L# J7 {+ 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))+ ]' g; L5 k, T& h3 u3 e

) Q5 O5 _$ \8 H8 C, R4 w

8 r, K9 p4 u/ O+ z; Rget-global-proportion
% q2 k1 W9 A" _& `0 k' i+ hlet trust-value
8 Y# A% v/ N) ?$ e& vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

: O& Q/ A/ G+ w3 Y& J! gif(trust-value > trade-trust-value)
7 r! X2 r5 p+ s. l$ p: R8 h[set trust-ok true]
# C! T/ p- f9 P) m3 F% A. V- Tend) O+ Q" _8 O, E$ z/ k; p
9 k4 A! ]7 p* t' ~
to get-global-proportion
& [) z) y5 k6 A1 L6 @ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ L. q% F) _$ A: D4 A: x# \$ x
[set global-proportion 0]2 Y( Q8 G! d  a9 P% K
[let i 0
  b, w$ ^- [4 X1 g$ C7 Qlet sum-money 0
, E4 }- J- s6 Q' k7 swhile[ i < people]! h9 g  B9 _4 U& Y
[6 Y/ [; l) l: `3 H* Q
if( length (item i& D# c# {# A! {+ \  G( k; K6 v$ O& c* }
[trade-record-all] of customer) > 3 )
' }, S* G, A' _
[
6 S  V5 t4 \' _* Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ P: K8 M9 u; [; w. u/ ]' ?3 A
]) k0 o$ ]8 g; x" t3 u- Y
]
6 Q2 r$ Z; ^4 X& _7 G! B# }* v9 [let j 09 U- Z. d8 H) {' C
let note 0* N3 ]; K. Y! _" F
while[ j < people]6 J6 e5 A/ @5 O
[, `5 {) N- J" p& A: o- D! Z! g
if( length (item i; e: l9 x" c) f
[trade-record-all] of customer) > 3 )

: U$ d5 ?8 T* C, E$ R8 _3 r[
" H6 W) v. B9 e( ], u3 B& l5 O/ Hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 o" F4 V3 a7 ], j6 k3 m
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 s3 w0 k2 L2 [* l% t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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]) [+ J2 d1 y4 y; k. a
set global-proportion note
2 K* t4 ]- `" O  \! R; ?5 U]; y+ Q% Y2 n, g7 a1 U/ ]9 W! A% I% _
end0 p7 Z, ~, R6 Z$ h% t
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to do-trade
0 M9 G* A' d, P: B4 L% _5 ^;;
这个过程实际上是给双方作出评价的过程
, Z8 @6 U  l* y/ C5 l0 a6 Tset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
+ I4 u% K2 X8 m/ ?( Jset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价3 J6 t, r6 U- U7 x
set trade-record-current lput(timer) trade-record-current
9 u$ Y. A: \2 Q- D1 i;;
评价时间
( Y7 ^  m2 Q* D! R0 l3 X! P1 oask myself [
; T! i0 Y4 V! }6 N( {1 Uupdate-local-reputation8 v$ _: N, C2 `0 }7 f
set trade-record-current lput([local-reputation] of myself) trade-record-current9 v6 m/ \5 _( q4 |1 `4 ^( r
]
1 U6 k1 L, Y* R$ X2 L/ Oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; B$ c% r, z0 [1 O, e+ B
;;
将此次交易的记录加入到trade-record-one
' K+ u0 _& W' W: u) kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 i" }9 ?3 g( R: f1 l$ s
let note (item 2 trade-record-current )
$ @* Y5 i7 p+ vset trade-record-current
0 Y, n' ?+ }. |' p1 @(replace-item 2 trade-record-current (item 3 trade-record-current))
2 L$ i6 ]3 X( z2 F
set trade-record-current% V# d% z1 D8 A7 [$ P6 i; Z
(replace-item 3 trade-record-current note)
" y7 U6 N2 J  z  j) G/ ]" Y
- A: {' n# i6 U' R! _- y

, a3 s" I. K; Jask customer [
1 c: ?5 B8 e! v. @7 y5 b) S( `  `update-local-reputation
( m1 R6 |) F! vset trade-record-current
' y) ]+ ?* F2 I$ h$ U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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]/ U& K  t' a. Z0 N% x4 J
! T: \, \, ~" T) _; k

0 P) S* N. X* k9 Z) G/ ~: ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 l$ q6 m" c. z& V2 r5 x

0 l- L2 ~, e4 [( R) _0 X* U$ `& n5 z) fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) R2 J3 }4 K1 A6 `;;
将此次交易的记录加入到customertrade-record-all* N7 ]+ W4 E3 G1 S: h  X4 D; `& V5 t
end
0 L' |- x/ ^5 X( f+ T' `6 }, f& c: J- h7 i
to update-local-reputation
; w( ?5 o+ d% Y$ wset [trade-record-one-len] of myself length [trade-record-one] of myself
) H4 F3 h! d" _. |
* d3 r; i9 m1 n+ _; L6 A7 ?( p/ D8 W( Z6 r2 O
;;if [trade-record-one-len] of myself > 3
3 D) {  }0 `) ?4 M9 X7 H
update-neighbor-total8 Y3 p# @! M) k6 V* P
;;
更新邻居节点的数目,在此进行
: S1 t0 B% f% P# j6 Llet i 39 ^- r" m5 N* E# |4 ]
let sum-time 0! Q5 U8 ~+ k) N- |
while[i < [trade-record-one-len] of myself]' k; m7 n" W: Y/ C9 T/ c+ x
[, L2 u' j6 z4 V' V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 A( b9 O& p/ b; n' Z0 jset i
  q% X# q! c$ e& n' P( i + 1)
, }# M" l( f2 p: j- b2 R/ n
]
- Z" f( n) U6 [9 ~let j 3
# ]  `& d+ {% O9 Z0 Z6 plet sum-money 0
+ _" X- S& ]5 i. ewhile[j < [trade-record-one-len] of myself]
5 w" G8 B" c, Y0 I) n3 U[
& Z* n3 T; R+ q2 Xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)6 p( r5 y8 U) x% |4 t5 s7 X
set j+ p' R& B8 K! \/ W7 i; q0 O
( j + 1)

5 g5 f& v" K4 n0 K" R& p, T]
! F+ E* B' d. [: b  R8 s4 }let k 39 y3 C$ O9 k# ?! j! F
let power 0
# |; }! F/ w4 C1 |2 {7 slet local 0# I0 o5 ^9 o6 Y# t' H2 ~1 c4 ]
while [k <[trade-record-one-len] of myself]
0 F8 i( m9 n4 a[
$ Q! [" C& W( C  R- H( {, B0 vset 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)
4 U9 h) i' G1 E7 s3 A2 {9 ^$ n* Aset k (k + 1). B- M1 p2 u1 X9 W
]6 ?1 ~9 b1 c' n% L0 Q0 J9 b6 X
set [local-reputation] of myself (local)* ?- P8 I$ c) e' |
end
: x  K( }6 b/ N$ ?! g- D1 ~
2 _; [+ S; I) }9 R( G1 _: bto update-neighbor-total
# H% P9 G* }& X4 L
4 \) g3 {  y0 C5 E: @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& h3 L1 g' k3 @+ R$ y
' p5 P. B/ m9 l4 A
/ ?2 U: B& y6 C* {& V' s
end- {$ O! C+ E, |- B. c8 ~% {
$ Q& c$ T8 x' y4 Q- ~4 ~
to update-credibility-ijl
; }, ~5 i9 s( k% X0 {+ y" k8 A. H, n  X& l4 {' p) J% }* l! h' N
;;
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。; S* \4 R; }: c3 X& ?& _
let l 0; d% S$ s9 l' @7 m+ W0 @/ _
while[ l < people ]
  H4 I$ q0 q# L# J& E0 l;;
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/ O/ m8 D$ H8 W( j
[
& J6 a% |- E( t& g" j7 O6 ^* D: Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 M* I% u! t! J
if (trade-record-one-j-l-len > 3)
* A2 O4 I3 F  r9 L[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+ ~# w/ l4 R, X
let i 3
9 F! w- Y! d" T. w1 N" ^let sum-time 0( Q9 {1 y4 J8 l, o% W. |; v4 v
while[i < trade-record-one-len]
, Q! }& q$ W3 a, X[
1 S9 @1 l  A$ r- P4 e1 G5 D. q$ tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! k9 [7 d! j5 [) Y9 K9 x% {set i
& Z2 p6 c$ ^) {& V# ^( i + 1)

$ ]2 X# G9 b; D% j5 b! T: L5 d]" K4 \, J: q3 g7 K6 C3 ]3 x& C
let credibility-i-j-l 0/ c9 P5 p$ E7 m
;;i
评价(jjl的评价)
  [; R5 G: u8 [" W, V0 J8 Blet j 3
+ \1 n) N2 @- ^1 blet k 4
$ J# g' {% t  o$ gwhile[j < trade-record-one-len]0 `6 E, y: Z/ s4 X8 h! I4 y
[, v3 c5 n1 l; H' i4 {  c
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( \; d3 r$ c6 ?! w2 ^
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)
* h" ^  A3 m; {$ A3 Iset j
- }9 p& K) w/ G( Z( j + 1)
5 \6 M9 s" U, }' k" x
]  e3 L0 p1 I% B$ c2 V* B) p4 \
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 ))
8 Q+ \! I- q% @4 n
' Y" C; [' R. y' N0 f

1 n" F9 b/ Y) s4 b5 M2 f' llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 S0 a0 G$ v8 F/ f# T6 n! _5 `
;;
及时更新il的评价质量的评价
. C( v# [. Q' T$ E3 L8 Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 ~# W  Q/ O6 x0 @6 m; c' x
set l (l + 1)
. A2 M; c1 v7 Z]
: B, q- t% L4 Q% Yend2 z0 R' }4 g' u) C1 F/ Q# D

# d/ f* Z8 e  O* [to update-credibility-list* L& U( k& m1 |. g% G# E
let i 0
' {  ]- C8 V4 E7 t' a3 c! Twhile[i < people]
, L; j9 V, A2 h0 I9 z7 @$ @; z[+ \5 Y1 D! T, \4 h8 t
let j 0
9 r6 e9 Z) j, T1 n8 z2 Hlet note 0
+ S) j( o4 O5 h; W2 o( |let k 0
! L) s+ |8 j" v* j1 @/ p9 \;;
计作出过评价的邻居节点的数目
+ K. X! M% J# w8 `1 b  B! E% j/ hwhile[j < people]
: z  i  [  t; s: u5 v[; ]# Q- r$ _3 j) e
if (item j( [credibility] of turtle (i + 1)) != -1)  M5 k4 g/ D! b
;;
判断是否给本turtle的评价质量做出过评价的节点: m" V8 B& I' F
[set note (note + item j ([credibility]of turtle (i + 1)))  E: B9 m* P: D; s
;;*(exp (-(people - 2)))/(people - 2))]

* a  C5 {9 s' f( |8 F  dset k (k + 1)  ~% k' R1 u3 T! b7 u# y1 U! T
]
* G: c; I( j* z1 U- v& [set j (j + 1)7 `& ]& _* @( x- q
]
! M, ]% t# ^6 dset note (note *(exp (- (1 / k)))/ k)
0 t7 E3 g$ a: U. d3 Hset credibility-list (replace-item i credibility-list note)7 R8 Y& l8 e1 H1 A% w: S" C
set i (i + 1)1 }2 }2 `9 {4 v/ H8 o
]
4 E( ]$ D! i6 _end
2 |4 L' i- v3 W5 ?$ b
5 M, k5 v7 @) k$ ^. X( |to update-global-reputation-list
. P; {% u3 H9 T. ~let j 0( g& E# |+ v; u
while[j < people]
$ `, H5 g1 J5 V1 a8 O[
5 l. S) D# P2 [; wlet new 03 h/ |' @- W( V5 L& C% {% c4 w
;;
暂存新的一个全局声誉
. \6 Q. Z, x: x; B" rlet i 0
8 D: p0 W+ h* E# vlet sum-money 0
; z' Q$ O, x5 h5 H0 J/ n; b' clet credibility-money 0
/ w7 X; C, E9 o# Swhile [i < people]
' v& u$ M& d4 x4 K% X6 P; Q# @[: I# I( e& a' ^0 V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ F( `3 B% x  Z5 |
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 x  i9 l" `3 x0 ^1 q* Cset i (i + 1)
2 ]$ L9 V) C: b( o4 }1 k]3 p% d4 c( k) V& d  P& c
let k 0
( N) t  T, ^+ r6 \8 x/ B, b9 Dlet new1 0: ^- w- C3 X. b" O% ~: L
while [k < people]
" G% ?+ p/ y2 t' v5 m[
0 V( q& Q3 G* b6 Y" Z+ Mset 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)4 H+ s! [" x1 X* p; k
set k (k + 1)5 v; g' ^+ u! L. j; H- W; Q2 `5 C
]
2 ~0 ?) ?6 y, V( yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 @* T# c; j+ W( Yset global-reputation-list (replace-item j global-reputation-list new), N  @& J( S# I( _; t7 U! e
set j (j + 1)
& f1 J# ]3 f$ b5 Z$ Q4 E]- t/ f0 Z$ D9 @! m- c4 I2 Y
end( B7 \) @. ~; N& d

7 e6 L) P- g4 n" |0 a
0 W; o4 _0 N. f" }$ W7 p; D' |1 a3 P; u! r8 A
to get-color  O9 C4 c1 ~; y' ]4 [) C, E) }2 R7 v

( `. A$ W% h- mset color blue
5 z8 a3 w7 D2 R& D" f% H4 O: i& \
end1 {3 R% n  E  ~

8 }* J- d4 d$ ~, mto poll-class# x! g/ {: X- W/ d! _8 q
end
) u' Y3 S7 Z# y' b( I$ P5 a
2 V, Y* ^/ ^: Yto setup-plot1$ ?0 e  q2 z/ }  G& ]- d3 e- k

1 ]+ G' O2 E  y% r. `set-current-plot "Trends-of-Local-reputation"
+ E/ X% t4 g' z# u/ B

& z5 A# N" e+ T4 B0 b/ aset-plot-x-range 0 xmax

6 j" G* c" r8 X' |4 F
* B! C- C  `" S" o/ f4 dset-plot-y-range 0.0 ymax

5 y: o0 U: ^9 q$ K0 Fend
, s9 T* A: Q* W+ T9 r
0 |- q- ^3 u& R& n. F1 G8 E' r- N+ |0 yto setup-plot2, |- K0 K8 h2 b2 B" ]$ [; g0 e
# a9 T5 y+ g0 K/ e% y. Z) b
set-current-plot "Trends-of-global-reputation"
$ M) |8 x- M1 n+ }

% D5 C9 c( ^$ Z  g5 }6 Kset-plot-x-range 0 xmax

  d2 l3 Y2 m- D& }
: W! |' }7 a7 X% H$ lset-plot-y-range 0.0 ymax

" [7 q' R' g' z2 A0 }1 Uend# B+ ~$ c# A9 `2 o3 B% l! T; o
  h- }5 c) Q9 ?1 `/ t' t
to setup-plot37 E' E; b" |- L' B
8 H, z3 t6 _+ o8 Q8 U
set-current-plot "Trends-of-credibility"

" l* o9 [$ J4 t  j( G8 E
% j; j6 d6 @6 j6 p$ Oset-plot-x-range 0 xmax
: ^+ ]  E5 _. Y, S' o+ ]# s5 {

- t2 a' i( f2 @& v) zset-plot-y-range 0.0 ymax
6 X1 h- a  i4 z4 H
end
* B* T0 I% s( i$ w
8 J; j3 h3 c/ ~. o/ oto do-plots, n0 ]6 [) L$ @+ z5 ?" O% g- E3 l
set-current-plot "Trends-of-Local-reputation"
/ x! E5 }) S6 L0 m; ^7 w! [set-current-plot-pen "Honest service"
8 p' Z; I2 a3 r6 b$ a- Vend7 b7 j! t* Z1 u( G. @3 ~6 F+ U
# s" `  t) O, J, ~
[ 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.9 @( c+ y0 X2 \, a$ e" G' l* T

/ ~! W+ k  v) B1 u$ v$ ^( r3 C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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