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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:/ [+ h4 u! b5 `
to do-business
- I5 }2 F. E+ c6 i) |! h+ ` rt random 360
8 m# l6 f- w# [ fd 1! l4 A+ r. _& F* y* Y3 F0 u
ifelse(other turtles-here != nobody)[, Y5 i7 ^) U5 ]1 Z
   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.6 e/ Z0 M! o& M  h$ e; ?
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self      `! d( q# i/ H8 g6 z- H
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer$ H+ ~  }  ?. E/ f
   set [trade-record-one-len] of self length [trade-record-one] of self1 a' W, k/ D. q3 W5 x
   set trade-record-current( list (timer) (random money-upper-limit))) d# a$ ~# p" v  y' c  ~0 U3 I, P
1 G. e; P5 r* Z
问题的提示如下:2 t, \7 Q% ~  F  J

" ]+ h$ p! I& p; F! ^  `$ derror while turtle 50 running OF in procedure DO-BUSINESS3 z4 k/ ], L& m
  called by procedure GO
' {: q6 k1 V" U4 p% zOF expected input to be a turtle agentset or turtle but got NOBODY instead.
& d3 z6 F+ n% P/ i+ I
(halted running of go)
- y1 |4 [% h* N% q1 @" m* o, |3 H4 a; u0 z/ L8 X
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~~
+ y/ u8 O: v# P2 T7 G7 A4 ~; Z" W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
# g( R: ?0 h) s" y! i4 J& w  rglobals[
! _1 c: |  D9 F1 Zxmax3 O# O6 v( e. d2 w% W
ymax
# C3 p3 p* D; Q! cglobal-reputation-list
% }& ^3 T8 k' I$ z2 |3 X
( @& @/ }6 C+ O: @% @;;
每一个turtle的全局声誉都存在此LIST
" m5 }( e0 p9 `% [2 c$ `credibility-list
; e: A& u2 h' g" E; v;;
每一个turtle的评价可信度
8 ]+ j  V5 z. Q. |3 `, `% N$ Ghonest-service) R8 C. q( c. k% w: ?
unhonest-service0 F1 @2 g, x3 D7 y; E/ t4 f
oscillation( Z( h) s9 h5 i  Q: @1 N
rand-dynamic' O  K. k3 c7 |: }' g" A
]
7 ]9 Q; G/ A; R# F
  e' ^/ J, v# C2 o( Q+ vturtles-own[2 P4 J7 b2 c( n& s: J2 ]
trade-record-all
" i& x: t$ f: A1 g;;a list of lists,
trade-record-one组成1 \* i3 x; a9 Z8 H
trade-record-one
. ?( y% T# H5 p% R6 O# r5 t;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录- w" y( `. m' X5 f$ L

) E& d% ~+ S+ R  |;;[
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]]
  O4 M6 P9 e0 k6 @" a+ m* W3 ctrade-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]0 E, r# ?8 t, p# N6 t( P9 d
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
8 q2 K3 B+ x4 |8 m6 Tneighbor-total
5 Y7 G$ ^" q# V9 b+ M1 \;;
记录该turtle的邻居节点的数目
* t0 i( D# f  v) Ftrade-time
  G3 `! h) }' Q# l1 D9 k  \;;
当前发生交易的turtle的交易时间
% b* U9 E, [/ m: x1 Y9 F4 Zappraise-give
" \1 l: G3 ~8 a# l2 U1 p;;
当前发生交易时给出的评价4 U, f. C6 i+ L
appraise-receive% b; k- G6 y: l
;;
当前发生交易时收到的评价& k: p: l7 ~& U" h
appraise-time
) q1 ]4 z1 i3 l- ?;;
当前发生交易时的评价时间  a- ]* m1 v- B2 h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! _/ e/ T$ w3 P2 qtrade-times-total
: @- \, T7 q3 L# d/ A;;
与当前turtle的交易总次数
; v, [6 b) y! y$ }+ I( Dtrade-money-total
, z' O# {8 g5 q& ^$ Y;;
与当前turtle的交易总金额5 X# l9 o% x7 a6 V9 F
local-reputation
' e( z1 ]) s5 Y5 ]/ f1 H- `global-reputation
/ e7 x2 C0 p! O* B7 T, O' G3 [credibility3 b2 d  J, @! ^$ p5 ?2 {* `+ s
;;
评价可信度,每次交易后都需要更新+ I* l) N2 h  N" M
credibility-all
  a4 y& d8 a* X5 ^* U6 f;;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
- F6 O/ Y1 S" @: ?) `6 |+ D4 b. d2 L) U1 e+ e. k/ _" L
;;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
/ W/ q0 S7 L. a6 |7 \credibility-one
' e, B# A# _  d- K6 C! v, I;;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 g: Q# H0 U8 w, x) O  h" N& yglobal-proportion# T' B) J& U# i# J/ @
customer7 m  U. F& A2 P* x2 t5 E' `& K
customer-no0 Q0 O7 E( ~4 X  e' K& I0 ^5 E
trust-ok
* |  K) f+ l& f* z3 y# Ttrade-record-one-len;;trade-record-one的长度9 k2 z; T* M& L- n/ E: ^$ h
]
* _! g: T( ^5 j/ k: v
# a# h- B: k5 g3 F" H' K4 Z;;setup procedure
- D' z! a; z, `  ]1 S1 o+ f
# L* v/ y" }% Z' H  Wto setup
+ u1 A; H& ^) ^. d! f& V* r1 E% i0 a; t1 q& b
ca
. c  ~2 t. T/ `9 P0 L6 Z
" D4 F( E- r. @  v# B
initialize-settings

" b8 R4 \: c6 J6 y8 J* j; t1 H! [! g% G7 ]- @3 h
crt people [setup-turtles]

5 ^: q- c; V3 t
! ~" b$ s/ }$ p. wreset-timer
4 _0 V, l! M# n1 c
) `( M! J3 u* S# L; z
poll-class
. k  k( ^/ X$ ]. G8 e

' }; t' }- Q- [# l, ^: l$ |, Esetup-plots
; ], E1 x2 c- F& W

4 q3 w- q4 L; F6 d. o5 O% v7 Ado-plots
& \# C4 q) z8 G+ B# g, P6 a+ Q
end
4 ^& k% B1 ?- h  s& O
5 g$ h/ p  H$ g' Cto initialize-settings
+ Y. h) H7 O- q( \2 `0 f# Y, d4 F4 Q
set global-reputation-list []

) k" f2 ~* A& \) B$ ~/ n
/ r% z, @9 S# s: xset credibility-list n-values people [0.5]

4 _5 ?3 s, E7 W: K& v) F
: }) k9 g6 o: _set honest-service 0
+ a% ~7 z0 o. x* I7 u  w
2 h2 s' V+ C+ C7 j/ h* f$ O
set unhonest-service 0
' z) _' p4 I3 [% [

; R" F- R6 i/ ?* b6 O% \, o- dset oscillation 0

( b& a5 n5 k- z
1 X7 W( Q1 I, w5 M/ e/ [/ gset rand-dynamic 0
1 m! ~7 n: a$ z/ ]
end4 I9 X4 G1 N% n& a) Z
& }( [" I7 m( T  Y7 L7 Z! K
to setup-turtles 3 T9 v8 ^0 ]" R& n9 J4 v3 r
set shape "person"
, I$ U2 c! _/ }3 ~setxy random-xcor random-ycor
. l+ V- X- g. h; ?9 Y8 p5 w0 Wset trade-record-one []1 {" A' M2 S7 e3 w% s1 \; [+ f

9 ~3 o+ `1 j$ Z5 i+ g, X4 i8 bset trade-record-all n-values people [(list (? + 1) 0 0)] . L% M/ x5 S: J' A! A

( w: I7 p6 m) ?/ A, v& iset trade-record-current []( Y8 G& P2 C5 U% `5 a1 W  M
set credibility-receive []" |. _! {1 |( i7 F' M5 Z: Q
set local-reputation 0.52 h' N  \3 g2 d8 M* X( N" v
set neighbor-total 0& D3 h! ?) n) _
set trade-times-total 02 y9 S' U) T; a+ C
set trade-money-total 0
  N6 x% u* l3 F1 R0 u" w2 kset customer nobody
% G, _1 d, ^8 t0 W" R+ Uset credibility-all n-values people [creat-credibility]
3 H. r% H5 C7 [. x9 Bset credibility n-values people [-1]' _7 t: S* R, y$ n
get-color
- Q3 z: U6 N' M' T- [' W
9 l7 N$ b7 n% `, Q
end2 N7 R( a3 v) P% q
3 [4 E! |  Z2 q4 ], e+ e
to-report creat-credibility; F0 r- f8 D( b
report n-values people [0.5]' B5 Q) |" A+ E  E3 _
end
9 M7 Z1 o( k* s' L/ ?# w' H* M. w) J% O* j* i
to setup-plots) _$ k4 |& H4 {) n) i

( |. ~+ P' K- K! P" b9 zset xmax 30
6 g) s( m. L8 u# W( s/ w

$ }1 b+ m) @6 O) S+ ~( J$ tset ymax 1.0
" P$ h8 T0 r* @3 n* \& q$ s

% N# c, F& s9 f, o# C0 G: W. R% _- Pclear-all-plots
3 @" p2 a6 S* j
. O) i& T& P8 x
setup-plot1

% [1 B& |- N. V4 M- b& E* ~
8 c% @' {" D5 Z0 ^setup-plot2

* j) f! H! r# ~# ]! W( `3 c; u: |3 t" P$ L' Y6 o$ _
setup-plot3
4 `. C: V/ d" [/ B& t, z! ^  W$ D7 L
end2 `) H9 {3 y1 ?9 L

+ h: D: V4 f% ?6 C! ~. L;;run time procedures8 e) f; S7 L, D  p- }
6 M" Y3 I4 i; r% ~) x" k- G
to go* t4 f: i8 s* {2 \/ {

2 k4 j% D' \: x6 Q3 Oask turtles [do-business]
( Q0 [" n* t% y  Q  t, Y9 }6 @
end
1 ^7 x8 a8 m3 Z/ {& E! j2 D( A# K, t& t3 B: M8 A/ U# C
to do-business 9 C& K7 I4 X. B7 v+ H; A$ m! b

4 o2 @; ]* L; P4 F% j3 \0 R5 t6 D2 @8 T  ~$ W0 f: f7 g
rt random 360
0 z: O' g3 K5 B/ i
5 x: H# K2 `8 A- ~) i
fd 1
% i; {- f7 V$ ~
  g( |* D" b6 x8 ^# s5 E4 G. \
ifelse(other turtles-here != nobody)[
$ ?4 Q- h% [: f' F& Z
( U' j2 \# p2 o) o2 Z3 q6 q
set customer one-of other turtles-here
0 [3 l* l/ N9 P4 p/ V* B) w) P" V
7 s  m: ?# ^- Y7 n8 j! t
;; set [customer] of customer myself
4 }0 ^& l! @" [
+ l" D$ F( S5 l6 K
set [trade-record-one] of self item (([who] of customer) - 1)
3 Z0 s4 I2 F( _! S0 a) R# T7 C% V[trade-record-all]of self  R0 ]2 D4 E  e% b7 q9 r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ m1 I" o! |2 p  r9 F, d7 o

# j7 |- z  F2 {$ e& }" f7 M* _set [trade-record-one] of customer item (([who] of self) - 1)
$ C) j) }- D' ~% a[trade-record-all]of customer
, g! v9 q; r! O4 m6 h& j
; D' V4 t. F. w6 G; l, i$ @4 x
set [trade-record-one-len] of self length [trade-record-one] of self

9 a6 u2 s) H+ ^  ~- y
- a, g" p# c& a, ]" u; A* sset trade-record-current( list (timer) (random money-upper-limit))

+ ~5 x5 F- q* I' `$ H
/ l# R* Y- \9 K6 G7 |ask self [do-trust]
; Z5 U) m: ^9 I5 D;;
先求ij的信任度
: u) }; G7 y* P0 Z  E  H  A, a4 @  \  H) n
if ([trust-ok] of self)1 _% U8 r/ }/ O, t2 }1 f: U$ [
;;
根据ij的信任度来决定是否与j进行交易[
5 Z9 d+ r4 E) [+ t. J: a. cask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
  e( b% `  ?) R8 w" k7 q" E
. z: A+ M% D9 F" X[

+ v+ j2 N# |) w6 i* G3 a# T+ A% p; N' s9 Q9 x
do-trade

* g0 `; E3 d9 m* a( [5 F& D: Y+ r9 q& Q( J7 Q$ D7 v9 X- i2 x$ j
update-credibility-ijl

/ k! l2 B$ T5 s' g0 R. ?/ n5 t- b7 {' P0 |+ r
update-credibility-list" H7 n6 u( v' x: \: s" U0 j
! e* ?. Q) G0 q. s. _6 M2 w, |
& o& k1 p& X+ D6 x
update-global-reputation-list
& M5 }7 _: \- N+ x5 Y/ g5 ^& F
$ C4 F  g$ O+ Y; j" ^$ H: ?" B
poll-class
2 Z; |+ E% F) U5 A
; m& U' e( ^1 G% V& }
get-color
) A, l6 z- J* }2 O
0 U" l* E8 c# M
]]
5 f7 T1 a1 Z& _1 t$ [8 h7 X7 E9 q/ Z) ^: v# I
;;
如果所得的信任度满足条件,则进行交易7 f4 b6 }2 S; q/ b

; i, P; ^. M' h9 }) r[
  i) c3 d9 b; u5 y, W% O
+ u. h" G- r% K8 L8 m
rt random 360

4 H# i  Q6 d0 {( e- I) ^$ p3 e9 h+ r! M/ X( ^4 C5 l! n* ?
fd 1
! H; H6 Y* d9 R" {0 C  [  K, O# `

/ y9 u  ^% B! u' `, []
8 V! c* f$ P8 t5 D( p9 P* K4 Z% j
6 x6 n( b: l2 |- [$ H. r1 \7 O& a
end
+ D3 |- k, ^* K5 t5 R( Z$ P$ Q

3 ?' t$ D% {% v! ato do-trust ) \: h- @8 y5 n; t" {+ v
set trust-ok False
# ~! b1 Q  k' n; u+ I9 Q+ U
% e4 q! ?+ q0 S* Y( l9 N9 X

$ {0 n5 {9 E' }7 }4 Dlet max-trade-times 0
! [" S9 r3 O  qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 G3 w2 e! g. T3 J) O% u
let max-trade-money 09 P8 b& R; U" s- k8 M2 e4 y- z; ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 B, o5 q% L+ a$ `3 R
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 X3 g+ w: M$ |
! m! l- a. s7 }- t* v+ ]" }
1 I8 r! h9 T. K) [
get-global-proportion
8 X) L; l9 Q( f4 ]let trust-value
, B' \, n; N' x( ]! u% C  i5 @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)

! j  L8 h4 u0 G; l1 x* fif(trust-value > trade-trust-value). F- K9 |, A# F& k# ~4 i! {/ K
[set trust-ok true]8 [. L# K& g' x' ^, K1 j
end
0 t$ }- q. v  b# o3 U5 ^- B  R( w( d: F6 L  X1 ?; J2 \) i
to get-global-proportion) l% B9 V1 H0 S# Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- W( @' o, }: n' n2 j6 _8 W[set global-proportion 0]
( F$ D0 z1 t  t5 C! [* X[let i 04 o8 ~- A+ O7 a' p; U
let sum-money 0
( t% s! n  }. S- i" {while[ i < people]* z3 {" T% O- ^
[5 r9 a2 @7 |' ^
if( length (item i
' F1 P5 n& a$ M2 ?! j[trade-record-all] of customer) > 3 )

" D7 Z3 d+ ~+ Q) i[
9 Z6 K1 o/ \9 L# w1 m7 A) H, tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) i7 Q4 s1 Q" F7 C" I5 |]5 D8 g# R7 Y1 ?" g, h/ x
], a5 L1 C7 C$ v# E: u! y# ]
let j 0
1 L1 M# `' t: c4 a9 s6 ~  Tlet note 0
  ?4 S3 \) E6 C* L2 iwhile[ j < people]+ G% s) K, C: t/ u
[
. b( S! d. m) k. k& sif( length (item i
+ o0 |! W7 \2 {$ O) M" l# y. f[trade-record-all] of customer) > 3 )
' K6 R$ ?' q/ S& I/ s( y; t$ a
[) b& \9 U' i6 K# r1 s+ C) {
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 S6 g% B6 D" E. r[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 g0 B+ v8 L/ Q( T( `+ a- |8 \4 A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 h0 ]6 a0 B. f9 F]
+ R/ D- b, A: o' U2 k3 k]" V; b, S! O$ r/ C4 C- h: A
set global-proportion note4 V+ D5 o; b" ^3 J3 Z& S. u8 ~  ?
]6 r9 E) Y: ]$ [6 [
end
  q" ^( X% U+ x( m6 F, R  X3 K* G
; N% W. t( c3 u- Fto do-trade# Z) q7 R: ^1 O- t% B9 c  q* ~/ G5 ?
;;
这个过程实际上是给双方作出评价的过程! K1 r& ^4 H& r# \) D
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
' H8 S2 V  k0 gset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价1 ~/ E+ ]% f" I4 I8 t
set trade-record-current lput(timer) trade-record-current
1 E& \2 h! }, `$ f. s) H5 _3 N;;
评价时间
8 ]3 m& s6 k7 o( x5 U, bask myself [
8 z, p/ I/ q9 }/ ]& t! Z6 x6 p1 Iupdate-local-reputation  O, A9 \1 E3 E" f5 t
set trade-record-current lput([local-reputation] of myself) trade-record-current
# Y* s. B& K0 A2 w$ V# F. z: c]% Z6 I! x# L4 \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& ]- z3 b. |% Q/ m% ~8 e0 {7 i
;;
将此次交易的记录加入到trade-record-one
" k2 p2 D4 L. [set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- j6 w, [4 }9 k8 v$ c  v% slet note (item 2 trade-record-current )
1 T; P' A  A" K  Q, R: tset trade-record-current
7 t+ n( D( x2 J$ N2 V' O' `(replace-item 2 trade-record-current (item 3 trade-record-current))

+ H: h& V3 U8 Q) Pset trade-record-current
, m" a, h$ P! G' P6 J0 N& a9 `(replace-item 3 trade-record-current note)
: z6 Q9 _9 G! {$ V& G' |5 S
& v' w1 P* A8 M: A# [7 T3 ?! i

) r! d5 E/ W  N/ z% Pask customer [
  A+ G1 b: S/ Y  ?( p6 @update-local-reputation& P% Q! a8 I) r5 ?# l
set trade-record-current0 x9 E7 S- [; c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

0 J6 [6 o: m" k* C- N2 |) i; g]
. J5 ^9 p9 s1 |* ?5 u5 q' P# ]9 W. x% T9 D

! Q  F: N3 F6 l7 uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer  `! e2 D( o# j6 o' }
' t/ u; Y7 V, F( f9 o  Z" {5 H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! O4 b! }& Y( y& A6 p
;;
将此次交易的记录加入到customertrade-record-all" q6 ]/ K! z* k6 b$ [
end
1 \8 |! T2 C6 c8 \6 z4 j
5 T, E! ~$ p. ]to update-local-reputation- v2 g1 f! g# u
set [trade-record-one-len] of myself length [trade-record-one] of myself  @6 T; g8 n0 }3 Z- H  a" y- Z
+ b+ e' F0 B" {: u4 }

/ w' p& h% x! }4 V) G;;if [trade-record-one-len] of myself > 3
" |  D; A1 Z- W: B, l
update-neighbor-total
1 m' O& S( @2 l5 I9 s. m;;
更新邻居节点的数目,在此进行
$ D) j0 r# k. h. d) M6 @let i 3
5 _; s  C3 D( @6 l% zlet sum-time 0
: X3 e& {9 O9 W0 Q$ s% `8 m# ]while[i < [trade-record-one-len] of myself]
7 s! |5 K# M0 q8 [. q) D" e) F[" K1 r- {; k- V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 @! W1 ^0 n3 V
set i3 m; v3 q' L* T# e4 j! x
( i + 1)
  n! b" b! t8 W. Z$ C$ G1 f
]
2 x7 N! S* e+ b6 H$ A* W6 v- flet j 3) P( m8 B, |2 {' E/ Y  J
let sum-money 0
0 {: d) x7 S! N* J) Hwhile[j < [trade-record-one-len] of myself]: b, s1 b5 Q( t: e1 ~
[
7 X* U: `+ {+ k3 g5 Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 d* f8 G2 K  q4 l5 D
set j
) D4 q% \- Q; y" T( j + 1)
# J( q$ x$ F3 l  N+ {7 r" |
]
9 |# |3 ]9 h: i7 \# g2 Flet k 3% R- _- G6 w- @1 [  E
let power 0$ J" \/ Z1 I$ d, H9 R
let local 0
! N# I" b# y, R4 xwhile [k <[trade-record-one-len] of myself]
& x! e- y' [" e' H[
2 S/ q' P1 V6 z' @& Eset 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)
3 `3 b$ P% j& z7 I& D* c* Tset k (k + 1)
+ k7 Z9 s( C' u% k& y]
6 \8 H  C+ m  J% r- m6 I$ ?set [local-reputation] of myself (local)
( h, a) O1 Q$ ^# O# `end; Y3 ~$ a8 t: S- ?1 T) r* u: h

3 ]8 m6 p* r, d  F( ]4 zto update-neighbor-total
' [* B1 Q2 B7 @  x* t
" l3 c# M, b+ S: {4 Y1 u- mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* |1 `' L$ B3 ]& }1 `

( a: l! n5 r) I- t6 r8 N

5 L4 h8 }& V/ F  O) w$ Z* Aend2 i$ {4 |4 r# h5 I# F2 v
! `1 d' A0 L3 D3 [' c6 ^3 q8 a
to update-credibility-ijl " `2 Q1 S# y4 t7 `. A
9 e3 [: I" K7 e- ^  V! G
;;
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。0 i( L3 p1 A: ~/ _. B9 r8 N' j
let l 0
4 ~9 l1 i  y7 W+ E' v  v. awhile[ l < people ]
( u/ J) L8 d& k6 Y4 D;;
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: y1 d# Z! O" W
[/ N: V$ @% {5 ]' R: n) c" `
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. ^2 x' T' a1 G2 }5 a7 w$ r) w) `if (trade-record-one-j-l-len > 3)
0 l$ t; Y! X- h2 X( w1 c8 w! n5 c[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% x- Y/ ^0 u) Y6 }& u$ u2 r
let i 3
0 X+ w% q  j6 |4 jlet sum-time 07 o) K! c2 g$ R' u1 I" @# t' c
while[i < trade-record-one-len]
) t9 U0 G5 A4 S, g; }( b[
- F" \( k6 a2 _1 }- p# e! @2 {$ a! }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% }% W" k* G9 a# w0 y: p3 Q
set i
( s8 X$ t2 ?! S8 e1 J7 O0 l" O( i + 1)
, t  x/ k- |5 d" \7 H5 Q) c  h! `
]# I( K  t# X# l) M" }
let credibility-i-j-l 0
0 e& \9 a/ J4 [' K- A;;i
评价(jjl的评价)# c6 f. T4 Z9 Q' x  u
let j 3% D& K& L3 S4 Z" |- z
let k 4
& P8 U! ?( o; h4 ^! n' swhile[j < trade-record-one-len]* b* Z4 V& I" U7 ?$ B% T
[
, }2 B2 l0 C4 e0 u; `) r0 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) Q6 O% A# e; Q+ E
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)
: g6 J  ^; z: v6 b% Y8 ~set j
- m4 r/ f6 W9 j$ ]( j + 1)
$ ]! |" i% q5 a( u- m
]- n+ Y: T  h" x9 {7 i
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 n4 X1 u: {  R/ D6 n- w& P: ?# D' A- J8 M

, B. s9 q6 T( Xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' E0 G  g# d; k4 Z; c5 ?3 c
;;
及时更新il的评价质量的评价
! v$ L  m( J4 h  Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* P! Y" o6 i3 g. k5 Eset l (l + 1)) S0 y  m' Q; @& |4 q3 v
]9 n1 B% [" a6 N' @/ O" G1 V, k7 O
end7 [0 B/ Z. n* n7 f6 V
9 k9 \. g: m" C& ~% m1 e9 E- J& R% i& j
to update-credibility-list
! e5 K& C) {( j, q# w7 olet i 0
8 ?6 p# |5 L$ P4 ^7 @+ B* lwhile[i < people]
7 r9 F: ~8 d% ^# K* N[: H' b! r$ T6 O9 v/ H
let j 0
- D8 h( D3 \9 K# x6 Q$ Y' |# q8 \1 elet note 0
- {# S# ^$ P  Ylet k 03 y3 l$ A/ W% e1 X! M( G( t
;;
计作出过评价的邻居节点的数目# u2 I) ]) d0 [5 {. d/ L  \4 Z
while[j < people]
! t  p% b, v7 C+ G6 C: k, {[' i+ [( i& C- c+ C' j
if (item j( [credibility] of turtle (i + 1)) != -1)
; G; n, C9 |5 p5 b( H5 x& F;;
判断是否给本turtle的评价质量做出过评价的节点
& F& T; M. S: }1 b: H* v. C! k( w) ~[set note (note + item j ([credibility]of turtle (i + 1)))7 P6 @- s+ v0 O# o$ f
;;*(exp (-(people - 2)))/(people - 2))]
8 D5 T! @, e" W
set k (k + 1)' j* J7 ]0 k; W6 G
]: m$ ]5 ]9 J/ Y& ]  n5 _. n( U& ?. u% m
set j (j + 1)
+ n6 e5 Q' J- }. d  x( }$ ~]
9 ^* D: \' W1 Q' ?+ J5 {" Lset note (note *(exp (- (1 / k)))/ k), x( G" }! v: l1 n2 l( D
set credibility-list (replace-item i credibility-list note)' Y, q/ s& o  v& o+ G& J: ~' b3 m
set i (i + 1)
) Q" }+ V. d, J) n# s]; n* U  a: L; E6 I
end
2 I$ B/ {  z8 ~2 A1 I5 Y; k7 g0 h! S1 d: ]' ~( Y9 u1 E6 Q
to update-global-reputation-list
) v) i: F: A6 t- u! mlet j 0
$ v* e3 _0 b2 [& e+ y3 ewhile[j < people]7 ~* C9 q2 R- ?8 k$ Q$ m/ e. g
[
7 k# Z) Q8 u. C: V4 w2 \( U" Flet new 0
* v, K$ X( G9 k! M" X;;
暂存新的一个全局声誉1 ]+ u- X7 L" P4 A. p$ _
let i 0
, \4 }5 W6 ?* c) C, \% jlet sum-money 0  R  |, T' y6 B7 D# [
let credibility-money 0
( v- p" D$ y% Qwhile [i < people]
! |: w( [* q: z2 U% o[; Z! C/ o' _# `  Q! F( H' c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% f' X1 I/ K: K0 Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& b# {' h# w  V8 H
set i (i + 1)
4 K5 c! J, x" }) o$ N, y' c8 ]' O& g: v]( Q& g' a& X. N6 J6 t0 b
let k 0
6 h4 D1 Z! u, g2 d7 mlet new1 03 i9 M' T( h( h% l' l" m/ o
while [k < people]
% o: }: b6 }: |[
( L6 ~& ^! k& b7 ]: Eset 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)
& u( ~8 l3 F. z+ ]& O$ E  O! tset k (k + 1)+ S8 K3 T' X% x6 \0 D& x4 i
]7 q/ k. w3 V" l1 B4 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! q' k, s% h' `/ c0 U/ }5 T' j  x
set global-reputation-list (replace-item j global-reputation-list new)% r+ k8 d! Z) f1 @
set j (j + 1)
9 z4 q- U- J; N! }- ?]
# t9 j2 S7 B' ~0 l( aend
; `, d, ~) _- l" C) b; [; I
: K7 i+ Y( ?! F6 X/ f% A, |5 z3 f( l  ^2 N% B* K. O$ u2 V; s( K& O" V
4 P  m2 ]/ `: A9 w4 m( G
to get-color2 X' n( g% B0 h. C0 Y
- o8 [( \5 p( ^
set color blue

2 y; [* J2 e" B* c2 B# P! xend/ d; _  I# M/ ~% D: n* ~2 U
) a- k0 f7 y1 l2 o& U
to poll-class: {' U6 i) r: Y& z1 |9 w
end
  c! q* Q$ ~1 t- Z% p
. t: g$ {- d+ K' r" Q: k& v$ Hto setup-plot1; Y; s  t) ]/ o- g* {/ H$ ]6 f
0 h# s+ s8 l# o0 j
set-current-plot "Trends-of-Local-reputation"

0 m7 F$ E; c+ U" `" B/ D4 a1 `2 P' [$ \
set-plot-x-range 0 xmax

0 g: ?; j7 M% c  ?4 n; ~' G" s' i$ c4 Y
set-plot-y-range 0.0 ymax

( c( F' D, |+ x9 Yend2 v. o5 m& G' `* i1 v

& D, u' `- P2 Y1 L3 t5 xto setup-plot2
' J4 `4 r# N: x' p  U
8 d1 }4 x7 S9 p# ~# F6 pset-current-plot "Trends-of-global-reputation"
( T, U0 i* d* i9 f

5 E! \5 ?4 b  y; _set-plot-x-range 0 xmax
& v$ B- H8 w: q7 I. S$ {/ e  ^3 M& }

( e3 f* b2 a3 m# hset-plot-y-range 0.0 ymax

3 W$ N! e6 h2 I0 _) D4 O6 K$ @end$ _3 _: x  R8 j6 D3 m, I
7 n4 `% q* ]' i7 T, {. m
to setup-plot3
& F: m' b4 `" _/ L# @, R1 {7 O
set-current-plot "Trends-of-credibility"
! R2 [$ v0 |+ j- u
8 k. {' w, S, E( n
set-plot-x-range 0 xmax

* n; k2 B! x, S* z/ y8 a) U5 h7 h4 M
set-plot-y-range 0.0 ymax
4 V* J7 h2 Y, ~& B& q9 ?( M
end0 b& ]. U$ J! B/ _" n
4 N0 q- R2 V5 c8 L6 j  \
to do-plots
5 n# D, x1 `' |: N8 C% Kset-current-plot "Trends-of-Local-reputation"
# W# U2 W& W. ~; aset-current-plot-pen "Honest service", C9 v# S! x/ d0 n1 o8 c- X( ?& u
end
2 U) K5 Z1 p) a6 s# j. _5 Y) m, b5 \( Z
[ 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.. D, _- |/ Q1 J- T) A' T
* h3 Q  V7 o1 Q
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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