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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:: O3 v; h) o7 R$ U6 d; G) V
to do-business
" d( {+ {! [* \2 j rt random 360
' H3 k" T( J: `7 N fd 1
; g- V  C0 R& D( ?+ T/ @+ r ifelse(other turtles-here != nobody)[' C  s( w/ l5 l) Q0 {
   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.2 t5 g" x: S4 ^; U& Y1 F
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    $ q1 m& H3 {  F
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
7 f0 h, s8 J% H0 T6 S1 |, I+ t5 k: }   set [trade-record-one-len] of self length [trade-record-one] of self' m& V8 D4 X3 Z& E: m- @
   set trade-record-current( list (timer) (random money-upper-limit))
" Y8 J# h# X3 d% m% [; Q8 D" b( ~) i
问题的提示如下:
) [: ]! g! h' y. ^6 n1 ?3 j, y
. b& x" ], q2 Y5 nerror while turtle 50 running OF in procedure DO-BUSINESS1 T) _) \+ m, |
  called by procedure GO
$ c1 |& C) K$ KOF expected input to be a turtle agentset or turtle but got NOBODY instead.% F* T6 Z6 q5 ^3 p6 }) d) g9 t
(halted running of go); ]* A3 I6 X% ]/ l) b6 J+ Z0 T) b

" N% }# L9 a5 ^3 d! v0 _9 a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 u" {3 J# |9 g( e* ^5 ^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
& \' s: v1 \( v; A0 i& P2 \2 Rglobals[5 r9 B( v8 y1 X9 @/ v5 B
xmax
3 b1 G# I- T2 Qymax
- |1 P" j9 w- [& r. qglobal-reputation-list; @& i5 D4 d. r) b: ^# I

) D. W2 r* {1 M! x; U% N, T;;
每一个turtle的全局声誉都存在此LIST
; I$ q$ h* l4 {. Zcredibility-list
5 \* O4 c( r6 W4 m3 A;;
每一个turtle的评价可信度+ o8 [' m5 u( P8 o/ L4 r7 A
honest-service/ F. ^2 a8 I6 D
unhonest-service# x7 c6 X1 Y" _' x; Y
oscillation
5 C, h5 i) L6 |. M; t$ Arand-dynamic
% ]8 m+ U( L3 S: N9 X! O]
$ o: A9 x' r5 B, H
" f& A5 \0 m6 o: gturtles-own[
. ^5 k4 M4 `9 r3 p2 utrade-record-all
9 J; t7 s& `- m;;a list of lists,
trade-record-one组成* s5 ]; B# k0 |/ ~8 a# a
trade-record-one
- e' D. B$ Q  z' {, J- M  D  q( o;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录9 X: N" L! A: J. T% b
/ q: f) ^! T9 m% j& f8 v
;;[
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]]
! g2 |4 W) d# H4 d2 ?+ ?- Jtrade-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]/ p- L0 p$ f  B* q" c! y
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list5 m; x% Y  [8 n3 R3 T1 M
neighbor-total
$ v8 |0 a3 i- f' h2 M" Z/ m3 z;;
记录该turtle的邻居节点的数目. O5 p8 C! R, L0 w" L* L
trade-time
; f$ K' g8 Z4 h0 r;;
当前发生交易的turtle的交易时间& I: Z4 E4 |: c- Z
appraise-give
$ ^* C5 f' y( N6 z;;
当前发生交易时给出的评价) N& a  I) s+ H7 U6 O8 y8 [8 _
appraise-receive
' d7 w! ?% Y/ W7 [;;
当前发生交易时收到的评价
: `3 S, h5 x. `9 Y$ y0 B' q% ^) m* d- Happraise-time# Z4 a: j; k4 J  D" n1 q4 c
;;
当前发生交易时的评价时间2 P5 q! w4 ]( L0 H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉  P5 m" F" y! [8 A6 R1 f1 M$ L
trade-times-total) o/ _3 f% h2 p3 N+ T& @
;;
与当前turtle的交易总次数
7 N( }+ G6 K3 q& n; Qtrade-money-total
# X2 w( M% ^! Q. z6 }7 [. }/ K;;
与当前turtle的交易总金额. `+ E& x- A1 O0 t. z
local-reputation1 `; ]% l  q- C, m4 i' {  V4 ]+ P( @
global-reputation
1 r3 h9 Y$ N7 s, H/ kcredibility/ F* y! m  p7 E& d3 L4 G/ V
;;
评价可信度,每次交易后都需要更新$ T5 Q2 b1 }6 U& G: F( H% y1 |1 a
credibility-all; }5 s$ P! R7 H, x5 [! u. l9 Y0 }
;;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6 L* m1 U7 a6 J1 `8 A/ e

+ ]" ]. n: _8 p5 @0 }4 j;;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
6 ~. X  _, ~# s1 [. [2 V) u' ?; fcredibility-one7 K, I, p. _- @2 E6 |
;;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! ~/ |0 Z+ ?1 z
global-proportion5 ^& ~  z( G& m2 ~& Z* k/ w5 _( R
customer
9 j9 j& b5 T) vcustomer-no
1 E5 I) C" w$ }, qtrust-ok
! _, T  P3 V% H& @) x- g7 r* ytrade-record-one-len;;trade-record-one的长度
/ M0 U5 }  j2 x  H]) T1 j( x( f$ Z+ `; e! e
* Q. E6 q+ t" V$ ?5 t3 v
;;setup procedure
; p# k( t4 u" B  r5 Z# T: ~6 w$ ^; G  Z5 }# `, f
to setup
5 {  C# T: L# U7 {9 _3 O9 `% n- L. K1 t5 \
ca
4 d' F& D# _0 C/ M- V% }5 e0 T
" g% t- w7 [3 ?0 p
initialize-settings
) r& c6 B' ]2 H& R( Z! w8 B

# M  l: P. K$ ycrt people [setup-turtles]

# W" {  m7 p0 ]+ ^% x# |* y
3 ?& z: t: Z$ ~reset-timer
4 G$ ^, s7 D/ Q% `, j! U: P
! s: n( R4 M# p9 F
poll-class

! j7 S1 X( ?6 X4 C. S, Z$ J# ~1 C( I) `* @1 R; q! j" Y$ o5 J' y
setup-plots

, m% X7 Z( c$ n- \
6 L% {7 T' V- ]$ ?/ {- ydo-plots

; D& W% b7 B9 I( Q  \end- D$ O/ }- T2 [& L" |+ `
; ]- ?" G7 @  V; I) \; ~/ a9 |, @
to initialize-settings0 L# ?. `' a3 I  O8 M
, Z; s9 u8 J2 l2 r  g
set global-reputation-list []
) N( }% H8 G. Q3 R

7 l/ a/ V* d8 V* v9 R, ~set credibility-list n-values people [0.5]

1 G3 O& J+ w8 Y2 a. A
" _( l5 n: V6 a1 ]" \* [; a5 |set honest-service 0
: U* k, ?4 y9 e

9 N+ [" e9 u, z. ~, pset unhonest-service 0

& J' r& e. p- K$ }* b! Y4 u) n" I: F
; w( r1 }1 _/ N+ q- qset oscillation 0
% U* }9 _3 J% u) K" d& i: I/ M; d
$ P: k+ m$ ^, d/ P# ]2 N  _& s
set rand-dynamic 0
; P4 L6 l! s/ `3 e+ s' x
end
5 V; h, t& O# o
0 [, m1 N" d( p4 |( qto setup-turtles ; ]. ?2 H2 G) J4 `( l7 O  Q
set shape "person"" k' t8 K8 p/ T3 |4 L* ]0 {
setxy random-xcor random-ycor! i  @1 z2 w0 ~( A) k( F
set trade-record-one []
/ i# V) R' _- ]' l5 \

5 v- K1 v0 o# u9 T2 vset trade-record-all n-values people [(list (? + 1) 0 0)] 1 R( d% b& d! U9 D4 e2 ~" O

4 t& A+ r. u. Z$ Iset trade-record-current []
% F& M% }! u( q2 I3 tset credibility-receive []) _, v7 U& u$ a! P0 Y" F
set local-reputation 0.5
; Q4 ]% P5 b$ f5 ?. x: @, Cset neighbor-total 0; R/ C* d; I# j* `
set trade-times-total 0
# `: D( I6 C8 p( I5 s; C. K6 Yset trade-money-total 0
/ O# G" P8 X& Y# a. y' p7 o  Eset customer nobody4 k5 S2 E( ?% a5 q
set credibility-all n-values people [creat-credibility]
0 k& L# D0 F( |& q7 d" aset credibility n-values people [-1]4 |( e$ }1 y: v2 k  K$ ^7 r9 _5 B
get-color. \8 x5 K) ^! n9 c
  f! Q  q0 O0 c+ N" y2 e' B
end
# \& j; H. c, b
: v- `3 o: r$ d) c, B8 {to-report creat-credibility% k/ {9 I% N/ N. X, z: g) q: ~* s
report n-values people [0.5]  b: a* k0 I: z, k$ D
end
2 X% t  \: z% Q8 G
% M+ H0 I# W& k3 Sto setup-plots
: ]" f$ d! \+ I' V# F& [. h7 Q: m
" }, z$ V# S0 \* rset xmax 30
5 N! B& y5 R6 w+ T

+ T" V, E/ }9 j0 t& f& X* D% oset ymax 1.0
9 ?: d) v% }: u# M( I* d! c
  ^) I" ?5 ]# z
clear-all-plots

. G0 Z' _3 j$ L$ E
& S) ^1 ]+ j& X$ R5 A6 Csetup-plot1
/ `% C, R5 {, d% K$ A! ?6 T. J7 r( {
) l! x# u1 J; H: r7 v4 a
setup-plot2

9 G! S6 V$ d3 {9 s* E+ F. x* D1 S4 N. l5 e7 H" m( e
setup-plot3
7 u. P0 F; V4 p- I+ B2 P
end
# z+ R' K9 \* h1 \: w/ ~0 V4 G. G; z" \. N0 F6 j
;;run time procedures/ f( Z5 y: v8 X2 [) |# A

+ r7 ]. l4 i/ ^to go
* a  j/ V2 U+ R1 \6 K* G* p' X7 q, e0 j4 J& a
ask turtles [do-business]

3 o% Y; E3 D3 o, Vend' q; C, V9 A+ I6 U+ P6 ?4 u
' l  j. p2 C: E: t$ a
to do-business 8 k  U% Z" a& e5 J

* R: B& W/ u/ e* g7 m# r$ M* J" H8 E7 d" r5 I/ ]
rt random 360
# W4 M& I0 ]" V# }
" @+ g, \+ \5 |+ i+ r8 U
fd 1
9 |  [& L- g  b
! Q2 |& r2 j+ _" y. K$ I% ^% A
ifelse(other turtles-here != nobody)[

$ _* q* f7 y- P1 h
% V, o3 e9 t! \: iset customer one-of other turtles-here

! O; b0 C' a5 D/ K) ^& E, C$ y* h, L9 j4 r5 t# e) k. o
;; set [customer] of customer myself
# f, g3 u. ~1 R7 n3 [- V$ n9 }
% W* I# [: a3 m) B. b
set [trade-record-one] of self item (([who] of customer) - 1)
' x/ X: P9 _# X  n9 a0 @[trade-record-all]of self
+ H& a7 C6 I+ K- t/ k;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 @" k; t' P% ^% C& t

& |7 z4 D# a, \set [trade-record-one] of customer item (([who] of self) - 1)
1 E/ V+ f7 d9 X; V& R; i; k8 P2 {- u: O[trade-record-all]of customer
- t- K) U1 R1 w: \  r
! j4 |* T% z& o2 K# A
set [trade-record-one-len] of self length [trade-record-one] of self
! X. |% P. f( W( I: A6 [

6 a, _' N9 F$ D  g: h8 Pset trade-record-current( list (timer) (random money-upper-limit))

7 {& k- Q7 S' f8 B
; i* e4 \1 [0 e" b, B& Eask self [do-trust]. u; O+ v3 }* ?( M. n" Y
;;
先求ij的信任度* Y5 [8 M* h* P
9 W2 N* a/ p( B6 [9 o
if ([trust-ok] of self)
1 Q, _0 l: b) _) H) O;;
根据ij的信任度来决定是否与j进行交易[
$ `4 G( V' i0 r- x- `ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself# Z4 b3 k6 _% j5 \  C
/ J. c+ c& [9 r* Q
[
+ H. `3 G* f8 |5 f5 q
! {' d9 u5 V: `: A/ T$ R; j, r+ B
do-trade
, F' k; E. D' G% W" E
+ A3 I' r  P: G7 n- s& D
update-credibility-ijl
) l8 g! j3 A/ W5 r' r5 H+ d: ^' W9 M
" ?( [7 U) `- s3 F% ~9 P0 F5 c
update-credibility-list5 k& l" b& s! _5 t

1 H" }" G# c+ }0 u
6 j. W: B& W# ]6 z( z# Pupdate-global-reputation-list
* b5 o* c7 g; w9 E7 Q' C

% j! F$ G5 R2 R* M+ v% Qpoll-class

9 _7 w4 j7 @+ l- u* k; B
. m8 T  m* t+ b' U$ V6 f$ I8 `get-color

6 h7 s& j7 f+ E; O, g, P4 I% L7 v3 i& D$ m) {$ q
]]! v* S% C  B7 B
/ t. s" K5 Q% w
;;
如果所得的信任度满足条件,则进行交易
9 E- m* L9 v! g( Y+ R' a7 [6 m# z$ T
[

+ v+ T& q) r% ^6 R  _6 ]2 ~
* a1 @" ]5 c2 ^( n* J2 urt random 360

" R  |& E" G& G5 L! `8 @
' a2 J. x4 G: sfd 1

" p( B0 G1 f( G( B1 o+ {0 |2 S
/ ]+ J+ K1 R4 o]

9 H: K# C/ o! D0 B7 u  i
. h( K: @6 }4 _' k; b1 |) eend

* Z$ V9 r4 B9 R0 S- |) \* C% S
, ~* G0 ~$ _/ J, q! X; L( Fto do-trust
) p7 I) u% i9 F- P. W8 O" Xset trust-ok False' U: K" |, X! R/ X4 g  g

7 }. V+ i- i1 I
  v' U. P* X9 q. z
let max-trade-times 0
$ k9 n! Q% M! K+ Uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ ]/ T" q& K* v
let max-trade-money 0
' d1 C* A# N4 f$ U# `0 |foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 F, |) v# N; }3 H! slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' S# c* X0 s4 y8 C) C5 A

9 D2 N% a3 |, B: @4 g5 I( `0 l( S
9 y; d" e' h6 i/ B. w2 {% o
get-global-proportion& A$ e/ {* A  R0 o/ o. r
let trust-value/ U/ s+ a6 V$ h5 B/ p
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 Z5 f( k3 P3 n6 K2 U1 s9 Sif(trust-value > trade-trust-value)6 c0 v& A5 J" J; d
[set trust-ok true]
- i  i4 R2 b( c5 n. E/ xend7 {; x7 ?0 g! C) z% L+ ?
  S6 S( D( d  m2 M! G6 t
to get-global-proportion
: `) A. e% D% G( q4 A1 sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ A! @! `% Q7 r8 c% _* z; O[set global-proportion 0]
* J, H3 P3 F( ]. b" x( W[let i 0
% _; k1 J8 y% Ilet sum-money 09 p/ I8 R, Z( N' j. D! }) M
while[ i < people]' x( `4 ]! z( B6 Y. h
[
4 x2 S; R- G' H" V* {5 m1 i. vif( length (item i
; ^2 Q! {* j0 j9 w2 |[trade-record-all] of customer) > 3 )

9 d0 q8 X* A& J- _3 S. ?3 l' N[
/ g/ H2 [4 M" P: mset sum-money (sum-money + item 2(item i [trade-record-all] of myself))( g( ~2 T, x: s9 L. S1 Z
]
% s( S& ]% E2 N" N6 D: w]( S  }9 i# L0 \9 i+ y
let j 0, n3 B2 ?' t  O# z. c6 O
let note 0
3 C! B/ G3 Y6 E1 }, swhile[ j < people]/ m& ~- {* s* \3 I& [
[* y  M+ T2 C) ^; F3 r- P4 n
if( length (item i- _' Y  p2 j, r: v0 [5 }0 E
[trade-record-all] of customer) > 3 )
4 K, m9 B1 e: m, y6 }# a( [
[
  l' }  J1 W! }( N% R  J6 nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! ?9 Q- S3 c! w5 j5 C  k3 W4 Z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
4 x. }" _; v6 Q! ]1 [, J; V' i7 {' f[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- i1 }" ]- Z& {0 f1 v7 u]
: S. o" w, |0 w2 N9 \]
9 J/ k/ b* Z. |+ q9 Tset global-proportion note' u5 l( \+ Z, a: V, F
], }* m. x0 X5 F
end
0 n; n! T# ]; i  S, I' d
' L  b4 p5 ?; Cto do-trade# X: Z% p4 f3 `( J
;;
这个过程实际上是给双方作出评价的过程
( U8 O  P% N5 y" M. v) I- gset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
( z) p' m; p9 V' Cset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价5 ]* o# i+ b$ \& I& \0 F, ~( C2 T" _
set trade-record-current lput(timer) trade-record-current7 ~% O1 \; x9 j8 D. Z3 G
;;
评价时间
# A. H8 u* u5 i% U8 u" Qask myself [- Q& B8 |. U9 ~* ]  g
update-local-reputation
5 a# o1 M- z9 G1 @/ ]! oset trade-record-current lput([local-reputation] of myself) trade-record-current
  Z9 K$ B9 _$ q( S0 ~. {' U. ~]
0 |4 Y6 y  a/ p% Rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ _) S, e, `( z
;;
将此次交易的记录加入到trade-record-one1 T4 j" q/ r" U  T1 d2 `9 i3 w
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 x% c' N7 T' R# |7 B# ~% Jlet note (item 2 trade-record-current )3 C: L4 G+ W4 y8 r+ F- C, z
set trade-record-current
  h! m. s) l2 U1 }3 v' H4 B(replace-item 2 trade-record-current (item 3 trade-record-current))
# V( Q7 g" J8 v/ C
set trade-record-current
) Y' }) n6 Q; l8 A$ J6 D(replace-item 3 trade-record-current note)
5 z9 `. m: ]9 \4 x' e6 i  T
; V: B8 \# V) g) G0 V
% q* j9 o8 |  D! E2 z
ask customer [1 }. [# Q5 e% p% p) \$ h4 u
update-local-reputation2 d/ X- g& o) v0 ?
set trade-record-current
! @+ ~% w/ p  V! ~5 O3 q) @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

( [2 r5 q' S' y" A6 Y+ t  n]
# \0 t" O3 q3 {8 G9 \3 u: c! ~9 N3 E+ m  a; f

: ~/ M. w9 l" g/ ^8 K$ |0 Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ k% i! V% d( m1 e* N8 H

$ P/ `3 t9 X% T6 [set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& u. m' S. _' U3 t+ [/ ^1 L; c;;
将此次交易的记录加入到customertrade-record-all
3 z% k. ?, r9 |  E) `. O: x7 R+ e$ Lend1 g+ X5 |+ f. |; ]) u5 d- h
, C: N1 \  t" s" i3 @# P& j
to update-local-reputation+ {& P6 u# C0 x7 U/ ?3 X
set [trade-record-one-len] of myself length [trade-record-one] of myself. W* o; t) o% H+ C5 G. m2 G
3 M) g4 V; ~$ K

, v+ K! s1 q  {* S. Z;;if [trade-record-one-len] of myself > 3
, s$ n$ \, u& D# o7 T7 |' Q
update-neighbor-total: S7 f6 v1 q1 N/ y
;;
更新邻居节点的数目,在此进行
: y: y' u$ ?+ Z" Elet i 3$ U, _/ A! @; h% T1 u8 R. D
let sum-time 0$ F' B& h  F" _
while[i < [trade-record-one-len] of myself]
& c0 L* n/ [9 B/ S[4 J1 {, I+ S0 Y$ G' x  U" x" s
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 q+ T5 n9 l) k9 G, Z
set i5 U2 x4 u% z* ^1 |5 v4 \( @
( i + 1)
$ b" J9 R& w9 m3 ?2 ]& c3 ^1 N8 X
]( q: u' c2 A6 K: k) d
let j 3& O" q1 Q0 o" b
let sum-money 0
/ T$ C& e5 M( B3 k- twhile[j < [trade-record-one-len] of myself]
3 }( d$ c  d! a[
; g* ]/ I: B2 j0 uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& H3 H: x  q$ p$ p6 cset j. ^6 ~5 K! t1 r& k7 @& p
( j + 1)

) n+ @! ^( [6 |9 T]
8 a: T6 _/ ~( Q  y( c$ E+ klet k 3, m7 J  p1 g- d* o& U6 E
let power 0/ D$ N# Z* X, u! M& |* Y% E. e( u
let local 0
% o& `, t" r8 J* b) nwhile [k <[trade-record-one-len] of myself]+ f* V- g2 F  j! r" y- A
[1 l/ _% _# E( W/ \- ^
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) 5 f' u; [4 z: k
set k (k + 1)8 K" A) Z7 d- X
]5 k# f4 z, }% I
set [local-reputation] of myself (local)' e4 T  {$ l/ @3 Y$ N
end% R' ?( Y4 ?3 ]5 N- v
3 r/ p. l( h" T% F9 t
to update-neighbor-total7 R7 r7 A/ Z$ ^  Q
! N" e1 j3 q8 G7 c5 Q+ ~
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' O  Y& f5 k  W& {" h) `

, K5 K5 t* H( {6 I8 w' W" p

. U3 c, d; f0 [! S3 G6 T$ |end  k. ^9 [: `/ }5 i

# I# a% {. m( B- y. Cto update-credibility-ijl
( j; A1 O; U! ~5 w; F7 w, ~" u4 p1 }) r& D" F" R
;;
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。
6 E) |( k6 B+ W: P2 Tlet l 0
* P# X# `* a* O( ~+ m' u2 \) ywhile[ l < people ]5 N' N7 u9 Z  o8 I
;;
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
" \! V0 C1 o9 u- X! \0 Q[/ x1 Y- t: f- r( T  n. _' R
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 Q' x% V$ [$ s+ j  t2 q, z$ H( kif (trade-record-one-j-l-len > 3)5 O  x: j/ Z1 ]. D# Q+ T4 {
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与ltrade-record-one0 K9 b+ S9 D& P  s
let i 3
% _4 d. K0 L; C( e7 @/ G! k% vlet sum-time 0
; S6 J5 X( z+ l5 G! x" _8 Qwhile[i < trade-record-one-len]  n/ s" z( [$ h7 |% V2 U4 U3 ~
[
/ t+ o' K( D( Z- ?8 P, d+ |  _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 v) p5 L( M* C5 x7 e, J
set i! t/ V3 J4 v% G; r# {7 t
( i + 1)

1 I8 A# |& ]" S& j7 ~. O4 Q' C]
" S) n- X7 }2 L! V8 U: N4 ]let credibility-i-j-l 0
- j; T3 M$ C0 k;;i
评价(jjl的评价)
* {. |) u4 H# c7 mlet j 3
2 j- Q" D; L( |* w6 dlet k 4
7 [/ b4 i1 X8 j- Qwhile[j < trade-record-one-len]9 {0 d! ~# s, Q* A
[# I* G& j" ?( w7 i$ i
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' \* u! j2 R6 p6 j0 v1 ]& G) ^
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)
  M' C6 I3 P% M  ^5 [/ Oset j
3 V5 V- m: _# g/ u1 L( j + 1)
$ B* O4 ?7 H" [' M, z$ P
]+ o. c$ o8 I7 ], Q
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 ))% q1 ?# s9 Y4 b2 Y1 C

, w5 Q( d4 W+ o1 D5 f0 B6 i' I8 E+ U2 i

& N  w7 R# t5 D3 U4 clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 o" f0 z3 W( [+ M2 J+ T, @; `9 B+ K;;
及时更新il的评价质量的评价
( |* c+ q, K  ]# p& l9 Hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
  l. c3 S% ?! }6 ~, F7 t3 Wset l (l + 1)
3 D1 d4 b2 X9 z8 o; _8 Q! D4 n0 E]
% I6 B4 H- {! k* ~2 X+ v8 A: iend
" I: {# m( {" F) B- U3 U7 C/ u! o7 Y/ s
to update-credibility-list
: j2 i( z! R7 L3 O; c) @let i 0
5 e. y9 h1 \( @+ V) zwhile[i < people]
% f" b" G  F5 }2 v& ]% J) k[
, r1 L3 N( K- I* @8 A- tlet j 0
9 w  g) `% Z' s/ ]% T$ plet note 0$ `/ j8 X  }  v4 F5 T7 o
let k 0; C) r3 r, q: L, q; d4 B2 N
;;
计作出过评价的邻居节点的数目
9 L, L3 j& j! ]5 N1 L* @0 L& K7 Awhile[j < people]$ Z8 _) f- F6 ]
[) A' Y& s. E- b$ ?2 `: F
if (item j( [credibility] of turtle (i + 1)) != -1)
4 X7 l) w- O5 A0 P: m% a2 S7 g, ?;;
判断是否给本turtle的评价质量做出过评价的节点5 v+ H4 I2 T5 I: F- ^+ e; c$ m! w
[set note (note + item j ([credibility]of turtle (i + 1)))8 l8 U7 Q, k% o: D, Q; P/ P
;;*(exp (-(people - 2)))/(people - 2))]

& r  q0 F  Q) y$ Qset k (k + 1)7 c8 b- o3 k% e5 Q! w0 N" i
]
+ f+ q7 D7 r2 G  Z2 @set j (j + 1)
  S" T& V7 ], o( {]
; J! H6 p' E  |7 J$ z' p) {& lset note (note *(exp (- (1 / k)))/ k)
6 y3 h0 Q8 G' Y- aset credibility-list (replace-item i credibility-list note)
& i$ F1 w) A3 @set i (i + 1)# G. H. p) r/ j# x6 _3 D& b3 F
]
  H; r) u. g, U  m. Oend
2 |5 `! o4 d  E5 ?. F) Y$ P' `: i8 G. x* ~2 j+ M8 ~# M
to update-global-reputation-list1 |& r: U. E0 I
let j 0* L# L" i  j; R, s- b( u% d
while[j < people]
* Q" C& T! D% u* O9 |! O[0 I8 F$ q* H9 M7 Z
let new 0
+ p$ o3 T7 C9 ?) d1 a, j;;
暂存新的一个全局声誉1 z0 S0 X0 j$ s* F! S- |
let i 0
% G- ]* {; h4 G5 G+ Olet sum-money 0
3 P; [+ R- X6 K6 D( S+ Z2 Y; Glet credibility-money 07 c% ?8 g2 l8 p1 d% U
while [i < people]/ Z& P* h/ F, |) |2 l5 ^7 c
[6 @/ M. r- @, y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# P: u% S: s/ l8 P7 X9 {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ |( g4 B0 w9 `. ]+ z6 x
set i (i + 1)
, n. u" {& `( U# {/ o]
2 D8 Z6 r8 H% f  B7 Ylet k 0, g  d) H8 h; ~! r' x+ Y" C
let new1 0
' H. ^: p* X" E2 e4 {: _6 @  J1 Swhile [k < people]
1 E2 U2 Z$ o4 p1 i' c- h; {[
, x' g" q. y# R! d6 ?" 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)
  N7 m  S! g! n8 Oset k (k + 1)
6 h0 a; \2 B7 k' S( _]
5 N0 G5 l$ [! ]: x4 b" k0 h: E5 L# bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 |  s9 u, l$ ~1 m$ L/ R
set global-reputation-list (replace-item j global-reputation-list new)- t- j9 t: b. J# F: x* D+ a, @
set j (j + 1)) C8 e  o  w: Q- G0 e, g9 `
]
. r7 l, D( _+ K% n! \2 c( l4 Nend% t% X* y1 O9 q2 @/ f+ _8 n
7 [% e( h) l5 ]8 @! k, |* j2 T, ?
2 u4 }! h6 l9 \# ^0 ]

+ v2 K! F/ ^, d- G2 {* u9 ^to get-color
+ a. M% w7 M, E$ t1 {
; Y, M# K( d2 d" x/ W1 @set color blue
% |2 [. p6 h9 I9 J; D
end: v0 V/ N. t: t* Y
" q8 u% Y( t6 A/ {- @6 `
to poll-class
# ?9 ^0 n- w6 K3 t! O+ i: ^end) ^% I7 R" E! {, I2 j! u
; v# W& y/ o" n
to setup-plot1
4 f9 `! Z. Z& M: R' S& Y
8 k+ S- Q: n! R/ Yset-current-plot "Trends-of-Local-reputation"
! a# r/ a0 H; g1 M: _- ?

. h( e6 c$ s' k- j2 ^set-plot-x-range 0 xmax
( F: }6 F. i- d0 r

) b- |; y& V" i$ V1 b7 f3 a0 yset-plot-y-range 0.0 ymax
9 [/ u+ n" R& [+ e1 @4 F
end5 y* C& N8 _" @4 R2 p% z9 ]

( r9 \' P: f8 X7 i) wto setup-plot2! C0 S) g& T( P9 C
  F7 L) s5 x( f; {
set-current-plot "Trends-of-global-reputation"

5 p5 V+ M) m% R1 k9 S
* H  Z& t9 d! v9 e9 f5 M$ e' F3 Uset-plot-x-range 0 xmax
; q" z' Z2 F' x# c# m& l$ g
$ W) C: ~9 {& Q& \% k; `& f' u
set-plot-y-range 0.0 ymax
% t8 k5 d: [8 u9 H2 p
end
. E% Q) e# [9 Q& m/ ?6 f7 L
( \7 X6 e( l& H) R' ]; a6 e. Eto setup-plot3
# N: `% ]# [9 Z! ~* x* h! n2 Z
% v5 f% h# @4 W% zset-current-plot "Trends-of-credibility"
+ L% v% o: ^' @5 T) W

* w: ~& ^8 y# n' T* V/ Kset-plot-x-range 0 xmax
+ z! }: T7 V/ O/ L1 a

) O# z/ L7 A' m1 Mset-plot-y-range 0.0 ymax

1 }7 Q7 K+ s1 G# |end. G8 r5 o! ~+ |- D3 Q
; J7 L  h* s" V2 |
to do-plots
  R  L3 G3 w- jset-current-plot "Trends-of-Local-reputation"( Q/ H6 s: X$ n5 j" N' a( ^
set-current-plot-pen "Honest service"
4 c7 t7 ~- ?5 o% k! n# wend8 e% U. f% K. g/ g

; t5 ^6 O2 C# `' J8 ]7 l+ h: 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.
3 y' ?0 M& K& A  t0 j; d) }) r- ?/ E$ w" q- o
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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