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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:7 h( {% e7 t: M! A
to do-business
( E) M8 `6 e* w6 p- E0 @. ~* F: H! M rt random 360
: k! t3 x9 i  b fd 1
6 ?# y6 |6 d7 _' O" ]9 m# x& J2 q ifelse(other turtles-here != nobody)[/ j& }5 ?; Y1 I' V% o8 }' e* l
   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.
3 z0 v6 ]2 L) {, V9 u   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
3 k: q* |& U/ ]7 [3 @; j   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer1 ?, A$ M+ e$ ?4 ?
   set [trade-record-one-len] of self length [trade-record-one] of self
  ?% y5 i# W( A   set trade-record-current( list (timer) (random money-upper-limit))
. X& i% H9 H5 D6 p5 c
8 w" m9 ~2 N4 Z) `问题的提示如下:0 g" e# `  j& l/ t9 H( a

* _! X; ^* t  E( `# \' K& derror while turtle 50 running OF in procedure DO-BUSINESS
. |/ Y7 d  }- F; L, i5 ~  called by procedure GO; R, @2 G- P7 o# R- y
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
8 h; K. f. L; Y9 [0 F5 m2 F
(halted running of go)
% w: ?$ d, w! S8 I! G' X" J5 I) ]$ g! v* ?7 E
这是为什么呢?我看到一些netlogo中自带的例子也是用这种方法来找turtle的同伴的啊?期待高手解答~~
7 J5 \6 ], W6 N5 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
6 l) G( @; T) z/ J# }7 A0 Oglobals[
+ [$ ^3 s- Z# D: c; ^! bxmax. p5 }/ N9 p( a2 ], i
ymax* U3 D! G5 s6 E; K4 U% J$ b0 R4 M. `
global-reputation-list/ K' t2 H; u. y! Q7 D# m, _

. S6 L" t5 Z" m; s- i9 @;;
每一个turtle的全局声誉都存在此LIST3 ~5 W! ]' Y& \, l7 b0 y+ g. I
credibility-list! U7 I6 X1 t" F* J( \9 X
;;
每一个turtle的评价可信度
) N  Y' c# P2 F$ a# e7 }honest-service% B  M( }" r, O6 {8 }/ [
unhonest-service
4 C# b2 ?3 o1 loscillation
8 G3 e& [$ I; Arand-dynamic( {# c8 S" B( W/ @9 U
]
5 f; c* G+ o2 k6 @* n8 F& F& x
3 ?5 W# \2 T' ]4 |% n$ z4 f( Pturtles-own[9 ?: [7 N9 M8 Y  y$ U# P: w' k$ L
trade-record-all
5 X: Z' b5 G4 O, N' v( B;;a list of lists,
trade-record-one组成
" E6 h6 ]  t8 t0 P$ wtrade-record-one
/ |- O6 r/ B$ n, t$ B/ ]1 [/ b;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
+ K( x0 V; {% r7 f6 u
" M: U; D: W6 D! X6 N; j" J5 \;;[
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]]8 [1 N) _( H$ }3 V8 r3 P9 |
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]/ T6 ~' T8 u* L8 @
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" r6 g* y; D% w, W" x8 @. R2 l
neighbor-total' [( h! |" B2 e# _$ u, B4 a- A
;;
记录该turtle的邻居节点的数目+ R8 ^' p7 z( N  i9 |# ^
trade-time
6 b5 V9 v4 F' s+ Y; n! c; E5 z;;
当前发生交易的turtle的交易时间
, }) S8 o5 T& ^5 ~appraise-give
; T7 t- @) t; O;;
当前发生交易时给出的评价- G1 A2 k! M6 H8 t7 B( b2 p
appraise-receive
; ^1 b/ K4 S  c  ];;
当前发生交易时收到的评价+ z8 |" G' m' l! _
appraise-time
$ m5 \5 \. q* y;;
当前发生交易时的评价时间9 \' J$ o$ N  l
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 u( k2 F0 K! Ptrade-times-total: G- \# u% R' A2 c" c7 f
;;
与当前turtle的交易总次数
% E8 j6 R8 o; Dtrade-money-total/ U# ]# y& c9 {: r8 U" c
;;
与当前turtle的交易总金额/ W. r" a2 T( g
local-reputation
4 @8 n3 M% p" s! c( {global-reputation+ S/ C5 `( l7 L8 S0 }( \
credibility
2 z/ r1 Y" o! z% B) L' L9 [! ^4 t;;
评价可信度,每次交易后都需要更新, x7 A; e2 J- W8 x( g$ B" C# J) |- i
credibility-all' Q% ?: o4 o  p5 Z! `
;;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. O1 Q  e6 B7 {8 q
% K' V  Z! s& S7 d0 y) @4 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" |) U1 {) a3 I2 @( T6 C
credibility-one
4 |+ Z7 A8 G) ]: U: d4 x& P& U. };;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
9 F4 R/ |- S" Z" H" Gglobal-proportion
$ l* M* U: V" S$ P- ]' u2 ]customer! S" c- X* Y4 W* Q4 k
customer-no2 m' V% d" b3 Q; V! j
trust-ok
# @& c7 Z, Q& D+ B% utrade-record-one-len;;trade-record-one的长度
6 \! h% J8 M* l; A7 a2 J8 C]
/ `3 s, u2 u7 I0 y5 }* C& N. s/ y. z. F, L, z2 L$ e# X# j
;;setup procedure
0 [! ^7 }+ ?7 c
; g: |- Z/ m( n1 x. k6 p$ ^! K  uto setup: ^$ R) J: O) F! P' e

& L: o( k7 J3 ]3 u8 S) Vca

( a4 H! W5 ]6 U9 y! Z/ T7 Y5 x& X, y0 \+ D# K5 G
initialize-settings
: d& z4 r, p; c8 M

5 z% t" l( ]3 K5 Wcrt people [setup-turtles]
) `2 B1 C' A2 J3 r' t1 z. J7 i$ Q

3 ~: A/ e+ A4 [reset-timer
4 ^; g7 E0 {1 S# n. c- n1 X3 _, g

& Q9 Z5 t5 l* m2 ?! Xpoll-class
# A8 G# ^, C9 D8 z! ]
' K5 B1 B4 W. e: j. [
setup-plots
, K9 Z7 M- h# q) T

0 R  I) d0 x( w* Udo-plots

  |2 }1 ~) ?: K/ |+ uend
% I# {- ~1 b- F
. D) Y- x* U2 S) R  A$ Kto initialize-settings
& K. y( L8 I$ T% @" |' i" Z
8 r, C; X) l; Y0 p) e) uset global-reputation-list []
, |& p  o2 l2 R' I, A* k
- j& d3 G9 m6 @7 ?' R
set credibility-list n-values people [0.5]
: F, @- x8 e0 ]% `3 o  p( }' Z

4 \% L# C0 ^2 F/ k5 Wset honest-service 0
! Y5 o  E1 l- v2 ?6 e, n! ~6 h

* I( \4 h6 @% j! L. g- K* [* xset unhonest-service 0

; y1 o; g8 |# O2 X0 e6 B& N, }) ^9 x, r4 y
set oscillation 0

$ [) z7 ^, n3 y, Y1 \/ I# i$ z
5 F% w5 b8 e! @6 Q3 N$ Kset rand-dynamic 0

5 G) a- t' L% c# [% Oend
9 F7 \" {8 o6 c' h, f, c7 M9 v1 u% }# T& R. Y
to setup-turtles 6 y7 J- @6 i4 q: F+ z7 {
set shape "person"
$ o1 e, U' S; Lsetxy random-xcor random-ycor
8 G4 a' B% y$ z: vset trade-record-one []- {. B; f/ `& P# A; [9 ]- m! w
# O  }/ u& w" V  e/ [# b: r
set trade-record-all n-values people [(list (? + 1) 0 0)]
) D% K5 Q+ ^2 o# m9 [
& Y  ]  H$ o" z0 K3 T3 L% J
set trade-record-current []+ b5 e3 S( Q" o# W
set credibility-receive []& I, T* c9 B; L. I3 d/ s7 X! @
set local-reputation 0.5  j" L( G. A- |+ {- M8 X! T
set neighbor-total 0, O# W" {) E/ @
set trade-times-total 0
7 O9 h8 }' O5 H, Sset trade-money-total 0
) c# C, I' L5 Pset customer nobody
; I8 u' O' I/ I! D" |: Q) vset credibility-all n-values people [creat-credibility]
. l' J8 I7 l* X! P' L0 _set credibility n-values people [-1]
8 j/ K6 u+ w: D* ]get-color
5 |/ B% t$ x; I" M. g3 r: ?" `/ j

! e, v) p  s* m- ^end% v/ w8 q3 _/ s3 {! c1 i/ c
2 N: ~) }6 G% P* `, m1 V7 y, u8 P
to-report creat-credibility
6 d7 T3 @- t9 Y5 Rreport n-values people [0.5]
" U6 ?4 o3 ^' n# x) lend
. X7 `! s$ v) p) k+ T5 v7 H9 J6 N3 S% w/ T$ M6 L* j
to setup-plots1 F* Y! v( F$ W& A5 m

" O( u, z8 O0 H9 uset xmax 30

6 W- p: ?- b# s& A& y$ {7 K
+ N' G% M4 O6 E6 m8 @+ l$ L, jset ymax 1.0
  ^, |0 N" m9 R+ C% s
- j* Y& O. l! f& Y; t* P
clear-all-plots
3 S, l3 F0 e* M- _9 y

) p: g! U" E  @5 e  }5 P3 ssetup-plot1
. ]% j( [! o9 }5 P, f% m
% n6 i  K7 Y& p+ R( M
setup-plot2
5 z# v0 ~" z7 r1 A
3 h6 S3 _3 a3 r9 ]$ ~, d/ r, u& K. W
setup-plot3

" n' A' t: D7 F3 n' Iend
/ h! O0 S! r% p3 p! d0 B
" I! m% x! ]0 I) X) };;run time procedures
; J& z4 X# M7 G7 b0 Y0 a! P
2 y6 i: k/ H0 i" f* F& D- P, zto go; t: J6 t% \9 R+ Y

# t) t' x3 R. w6 A, Task turtles [do-business]

$ R, E( B2 `& send) |0 |& w% r! B0 U" z
. B: k6 f: p7 G
to do-business
9 A4 V+ M2 r, Q. r% }$ L) {

  p% o8 K! v/ t7 ^/ j
7 k3 x" f8 }: c" lrt random 360
) q4 M1 G4 c( e- u: \5 h+ f

; B" x" r: r, U  w' a4 U$ ?fd 1

7 n9 K& [+ M% S+ B3 A
% x" [4 }1 d, q5 [ifelse(other turtles-here != nobody)[

' k+ }: M0 X+ ]5 t7 p# Q. W, ~1 k
6 G+ h4 d) f! [# h0 R4 ~! qset customer one-of other turtles-here
: n* l5 @' K4 H7 g' d( Z, m+ j# P
/ q7 ]; x# l0 i+ `1 L# W7 [
;; set [customer] of customer myself

8 k# ]6 p  y6 {9 B* A; W4 w$ I# N: Y
7 E8 \5 J& J1 G( S8 B, fset [trade-record-one] of self item (([who] of customer) - 1)! K  M: l0 S1 _% @+ K
[trade-record-all]of self% S7 F4 `* T# k! P9 {* o3 Z# y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( }9 n- s4 ~  c

; c" l, U% V2 K, ?1 @set [trade-record-one] of customer item (([who] of self) - 1)4 Y- N1 F5 m% c; M# Z$ Q/ I( }
[trade-record-all]of customer

' i% m) X# a+ e
4 f, @* s% R1 N. o- [  ?& e( yset [trade-record-one-len] of self length [trade-record-one] of self

* M; K# G3 ?4 A( G, Q9 b
- b9 j& P5 _& qset trade-record-current( list (timer) (random money-upper-limit))
6 s8 o0 L2 E" i# b

/ \5 x& K0 w8 P; X/ a: `5 Uask self [do-trust]# T  i& j/ A4 I2 [* |/ c/ n
;;
先求ij的信任度
5 T& p' G, T  ~9 h) Y+ c6 Y4 W7 E& q* p( m( z' v0 {* L7 T
if ([trust-ok] of self)
/ C: y2 l; R8 N;;
根据ij的信任度来决定是否与j进行交易[7 F0 ]1 w$ U( W7 O* g6 J' T6 s5 q
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself. J& j1 [; K- O
/ \2 u* z+ \. W- p) X  O4 l6 e+ @
[

) L, F" O; R" X3 |8 l1 y5 R' H+ s: t1 ^
do-trade
: s# J9 ~6 L3 T" \" b
) c% k7 o# ^! ~% {. t* u
update-credibility-ijl
  Z' |. J) V+ I
% K! J% q6 S* y. z
update-credibility-list
7 E9 s7 Z' T% x5 r2 \: ]

, h9 k  Y  K! k+ P; S. L( N4 v9 [0 Q% e% a, A+ p
update-global-reputation-list
4 N1 X0 I' z9 r% C( j

( D; T* }+ j; s6 F1 Jpoll-class

( L7 {4 L5 r3 |, R4 t- U/ u" B  J- j5 i" T: ]" E' _
get-color
! y2 O, u$ @& ~0 }( s, @
& a; w, y5 I3 X
]]/ L9 j1 y9 |( Z
* S5 p  V/ F2 n8 ?6 i6 \
;;
如果所得的信任度满足条件,则进行交易
* \0 a* J4 j7 q2 u6 e: r1 e% z9 j
1 c) Y# E! Z( u6 H[

4 r! N( b4 u3 s. k1 R& }% [& }3 [9 u0 \3 B8 ~7 X6 }5 o+ S. f: E! f' B# x, K
rt random 360
$ z5 o% Z0 T  A7 h! k" ~+ N

  S" _! }3 R* k7 X( V5 `fd 1
2 g4 W% X& S, T: q+ R/ H
5 [8 u( _" Y  N; J" [
]
) ?/ k( x+ s- e4 M

7 @1 u- L; h( a8 T8 F, pend
. l. V, H% E/ A; f# [6 {' v5 S! j

8 E; D# F8 V4 h' p* G1 Hto do-trust 9 v  {5 s& ?, B" t2 `
set trust-ok False
4 `/ Z$ C$ T7 y2 X
. J" n% `  q1 Q/ C& _- y$ k! v

  \# o. u+ m& ]* b/ @let max-trade-times 0. j8 ^( u, V# G3 U3 a
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% S0 X" S3 g+ Q* X3 ]" Jlet max-trade-money 0
  k: r8 E- T' h/ N) T, Xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 Z2 ]- Z4 D5 K+ i) _, m
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* u: \) H: \3 C2 n+ j. i* ]: W( g
, k; {' v( W0 v/ S: d% V
get-global-proportion
' h( Y- w- R+ }+ _  Nlet trust-value
; }) {! L7 U1 v& b) Flocal-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! L1 }8 q2 c8 f" A* u' Tif(trust-value > trade-trust-value)1 z& k- B6 I8 ]# b( f
[set trust-ok true]) X$ ~7 K7 W/ ~" \
end* d, S5 S7 W, b( I4 S/ e+ L

& p* M5 x: }7 _, ~to get-global-proportion9 a% C5 |, [5 e. A
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). J; J' B2 d6 Y7 N9 Y3 ~
[set global-proportion 0]
# U7 r8 a3 q) o5 f8 V: E+ a[let i 00 l. ?6 j9 S5 P1 p/ p
let sum-money 0
0 w7 L* c7 \3 Fwhile[ i < people]# }) s! b  k9 C" B' f
[7 ~9 |+ z# K2 N
if( length (item i
3 Z8 b0 u" P: T* j2 J$ X  m[trade-record-all] of customer) > 3 )

. I9 i# X' E; t1 l2 P& a- ?[8 ^# j3 C# h' [) ^) C6 r" p% u
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 k; L9 J+ P8 y$ L- z
]
) Q  _- T! h! K8 f4 X0 t8 Z]6 D; `: s/ l6 Q9 s2 `
let j 0
; C+ z  o( i1 glet note 0% Q, o# r5 T2 _' d' D# }$ E
while[ j < people]9 X# w' U+ K* U- _% `0 [- p
[& g) c; D% p; L) M: P. y% u
if( length (item i
7 |$ l8 f5 h1 s- K# X2 o- M- g- u[trade-record-all] of customer) > 3 )
: F7 U6 B5 J8 l6 V. I
[
: F8 M  `0 ~7 H. Hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& O" I0 Z9 y8 X! g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ g$ H( H* W/ M$ @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 z5 P5 \2 {3 f' e! z$ r
]
! X4 B  m8 ^" H( i5 f, `$ u% d; ~]
' E/ q4 Q; T: [; Jset global-proportion note
& J: c4 ]5 g( Z# R* z- a]
& P5 B) e. T) L* v1 iend2 P9 s$ G1 g! C& v

% O7 w8 I5 ~, X) v  Gto do-trade
! T5 `$ P: }) V1 ?" a% Q;;
这个过程实际上是给双方作出评价的过程3 ^6 d5 y( x/ \% J1 {2 _
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
2 u- E' {& _" l6 R6 u" R! kset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价2 p. N4 i  Y: T) V5 y
set trade-record-current lput(timer) trade-record-current
, ]! m" s2 `# V1 P' L$ z: E;;
评价时间" q( U2 L% z4 ^" T, j9 T. w
ask myself [7 m, p" B3 G* e  C: h0 c9 Q
update-local-reputation- N) y' `4 R* H5 Q( E$ B' F
set trade-record-current lput([local-reputation] of myself) trade-record-current
) f* [: W) G6 z* P]
1 D( n8 ^4 P2 s$ V9 }- t& |4 Nset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: ?8 w# W) F& S" b& x* N
;;
将此次交易的记录加入到trade-record-one
, x) [8 n. y8 E; U" f" Z& R) Nset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)# ]+ h! d1 S' D  P. m
let note (item 2 trade-record-current )
- g7 D% N. Z5 X( _6 }2 ~( Bset trade-record-current, }5 A0 }1 M- [6 @- n
(replace-item 2 trade-record-current (item 3 trade-record-current))

2 ?, [. x4 L' [0 ~2 |set trade-record-current
1 q" N9 N+ m4 a9 c. f, J(replace-item 3 trade-record-current note)* Y. t+ `6 d7 Q! K3 g- ^6 M
2 q  b0 P$ p. k& ~5 a
  n+ a6 g0 H% e8 z- r' i
ask customer [
9 a( k2 R( F) l5 r3 |3 D. Iupdate-local-reputation
4 @& c: B& u8 r. h# g4 aset trade-record-current: m. W7 y8 [6 t9 B% f
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

5 X! I; P- t  J1 v6 Z]$ {9 c1 d" G' s1 F! ?, b2 z* E
5 j5 b$ C! p1 D# {

. x5 j; |  ~% O" j3 q) O( kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; f" k9 W7 J6 F9 @
9 a9 s$ o; N9 t0 s. y- k3 ^: t
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 a% w6 S( S% x. k) @. X8 U
;;
将此次交易的记录加入到customertrade-record-all
" G$ D0 y# `% W$ b- G( c* E5 `. tend8 {' i5 }- _3 b0 b: }; U) g
5 D9 t8 i9 U5 ~7 R; O& L+ k4 u
to update-local-reputation
8 R1 ^5 ^7 w: w2 z; V/ v% hset [trade-record-one-len] of myself length [trade-record-one] of myself4 G$ Z3 J2 f3 r! _% g

( \: i' y; Q, t* ~3 X( O: @
& o. N( u. V1 [* a. f4 O2 G;;if [trade-record-one-len] of myself > 3
2 P! N$ r3 f2 ^( E9 `
update-neighbor-total
: k& S( s: w7 y9 h1 s;;
更新邻居节点的数目,在此进行
- b8 i6 j' x& h/ H* B; ~5 [. ilet i 3/ G6 X" o9 b: o9 B' {
let sum-time 04 |+ _1 x' [' A7 ?$ O* F
while[i < [trade-record-one-len] of myself]; T3 G& Z6 ?6 g3 i' r, E
[8 x" n" F) \: o$ u
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# Y+ \, ~# W& v9 j' s: `. S9 c
set i5 p5 U' A$ b- a3 x+ \
( i + 1)
; j' Z! u4 R5 i/ ~: t
]
5 X$ K" z3 E4 K# G4 K4 L# x' Vlet j 3$ L5 c- V3 Y- t! O
let sum-money 0
! f7 x$ }* D. x0 Jwhile[j < [trade-record-one-len] of myself], Y. N) _8 v7 g9 t# p9 u6 i, A9 x7 G
[* Z& |0 G7 W/ E$ F
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)( B3 @8 K) a: R. q7 y
set j) y+ ?, n5 A7 i4 `- L- h
( j + 1)

1 T3 V5 n- D/ p, M  w* h9 u; r2 M]" o7 ^1 K, L: p$ L
let k 3
4 }4 k' u. z! [$ R  ?' plet power 0
3 j' X& b* `# R. I' nlet local 0+ j' E6 d. s: l" a  r5 g
while [k <[trade-record-one-len] of myself]1 p. q9 I6 Q( }* C5 D) c
[4 J3 h& e: l! Q1 o! ]* r8 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) % a8 V* I9 K1 x" V3 M: C
set k (k + 1)
3 J3 F3 V1 A% d, i8 N/ f]
6 z# R  b: w# o- t) p, v0 T+ dset [local-reputation] of myself (local)
5 E) Z$ I. `4 p) ^2 C1 d# K( ]8 @end
( b" c8 b  @+ W* s! a+ a4 f0 g8 k( `. \
to update-neighbor-total
# b$ G! P4 W4 |  z* P  }( [0 b2 k
1 h- I' |0 c- x9 G/ rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 O1 w3 t( o* N

1 M2 f$ z9 {+ B' D1 H4 V6 W" n
- C* {2 p/ p8 n3 F5 t
end. \8 A: z: M9 E# P/ L6 a

3 \3 W, ?% o4 J& [( E' B: H4 [2 jto update-credibility-ijl
% b/ B$ J9 w. W' s3 {+ q' {* W3 {- M9 D! V3 M$ T6 L; I5 M
;;
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。5 z! W0 d# Q! m( D5 G
let l 0
( ~# G/ g1 f4 r& q) _while[ l < people ]
3 e3 V8 m/ M% k& j;;
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
% c2 p6 X3 w, K, r6 K) ^. r[  y! ]$ v, M2 ^2 C. M& I
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* `$ \$ j( ?, u' M6 J$ F6 X7 W
if (trade-record-one-j-l-len > 3)
7 ]4 X7 ^2 d4 X7 g[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
+ y: c" b" h6 Plet i 3
/ u! t$ W* s- Klet sum-time 0/ Y' ]; G: o4 ?( H! x  H
while[i < trade-record-one-len]: L2 `5 |9 L3 L7 t
[
2 j: G& o1 g6 [- x" g, {0 U1 j, Hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 O8 v# e# ~4 j* z" r' I8 K0 ]set i; `6 j5 D& O3 V3 I3 ^& \
( i + 1)

, L1 j1 t4 `2 D  l4 @8 A5 _]3 \% l' E: r# t! M! W8 ?  H
let credibility-i-j-l 02 ]3 i% B, P9 {0 T1 n& v
;;i
评价(jjl的评价)
. x' q8 t1 U1 O* vlet j 3
2 ?$ X$ |% y, w3 G9 @- m" Mlet k 45 ?- Z# _- _0 [( Q" S
while[j < trade-record-one-len]8 w. y# Q* i8 g/ ]2 A$ m/ n  E! Q
[. B- K1 P/ Z' q
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
# W+ `9 @2 G& k! L, Wset 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)
' X% Z- E" ]+ a# Yset j$ p: `( _. s1 E. l2 U& g* o
( j + 1)

9 P- [9 O/ @3 Y3 W; @% F" K]9 r) ]1 Q$ ~8 M! h7 n
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 ))' X4 v% d4 g# Q/ l4 R# ~6 `

' |8 O! r5 I$ [9 `6 {* S5 f6 U( w

1 e/ Q0 r9 a. k9 R; Q. I8 U0 U* Clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. z7 q! v* Y" K;;
及时更新il的评价质量的评价1 h, C* H! ^' Y0 r! ^. ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 b8 L+ I, t' `: |0 F9 I, T" [6 Uset l (l + 1)6 B5 [1 X% v0 `0 a
]+ Z* j, `: U" c
end7 }( h1 q' ~( p& `( M
6 o; D$ i+ U; O- b) a/ Q- ^
to update-credibility-list: O6 j" s/ w; Z1 _3 k2 _# O( \% X
let i 0& J- [6 J) y5 m$ t1 u  _9 d
while[i < people]
3 J5 F2 U! b( \[5 o& P$ A* M0 B- X7 Z6 V  E) @: z
let j 0; c6 \' b% ?. Z" A
let note 0
; d/ S. l' K% F3 y% X% Blet k 0- D' M; k: k! {) N
;;
计作出过评价的邻居节点的数目+ e; v6 |+ E) |/ a
while[j < people]4 R9 h( a3 t  a
[0 c+ k) H6 n. B4 `7 E, d. V. n3 X" Y
if (item j( [credibility] of turtle (i + 1)) != -1)
+ x( ?- l" s: \% C;;
判断是否给本turtle的评价质量做出过评价的节点
  H: A2 w, z% f$ ^0 [[set note (note + item j ([credibility]of turtle (i + 1)))
/ V6 d% }5 _! k; m;;*(exp (-(people - 2)))/(people - 2))]
6 `5 c  w" y0 B( }3 \
set k (k + 1)
% D1 ?  t# B6 k2 R]
: i  l* J  h& ^% Q7 a" Cset j (j + 1)' v7 l, P. N* g4 |5 @6 M
]' M- z$ b. m+ i0 b
set note (note *(exp (- (1 / k)))/ k)
8 h) t9 l  q8 N- ^8 B+ R3 Uset credibility-list (replace-item i credibility-list note)
9 T: h1 |8 l. [; Rset i (i + 1)
+ g$ U6 T7 c) X, l+ {2 b" L]0 l: ]" _( T- }/ j$ E6 L% d
end; O1 B, d$ L; ~$ X6 X# R6 ~
/ I7 ^  X" r. r. m  t
to update-global-reputation-list
4 V) c5 i( o3 olet j 0
; d: _( [" g: s: }, ~" d9 E$ c1 uwhile[j < people]/ d6 c3 M3 Z8 R3 x
[7 V. h* C& p6 R4 u+ V4 a$ T- j
let new 0
. q7 Q$ S$ p: ^; m9 o& I& M' Q, q;;
暂存新的一个全局声誉
% B8 G& W' `! |) n8 T5 S. Llet i 0. w0 u% D& r+ w7 E; w
let sum-money 0
, g7 G) p' ]) d8 p+ ?/ N  K8 {- A, alet credibility-money 0
( s! _( j/ T6 D  r' L8 }, `1 V% wwhile [i < people]4 v5 D& _' e3 K4 n
[; @6 p7 }0 k0 R6 s& R  N
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ x6 S5 C' b% G, Dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 ?; F: z& T9 D8 c" i
set i (i + 1)6 A* W, R  B& w; G7 i3 i" y
]# N* g8 K! V: p
let k 0; j) x" B! W, C1 T; h( v0 _
let new1 0
8 S  k) M, b- \7 [! A+ I- Uwhile [k < people]7 A9 a( A3 h+ T
[
- J9 u. c* s0 ~6 x* J5 iset 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)
$ R2 W  p  r$ ~: Oset k (k + 1)
' q! e( L8 {4 j$ c]
! L  \  q* ~% }# vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 y/ I9 |0 o% K% A, B! kset global-reputation-list (replace-item j global-reputation-list new)9 ?: I2 G4 W4 V6 m
set j (j + 1)
2 P% g  o) m4 P4 s]
( F+ ]% T9 v; k+ |; Rend
& _0 K5 a1 @" b1 `2 G. N. n, m9 n! J2 e2 m3 Y# m  }
, B9 Y. K2 m, E& F( }$ o3 m, Y7 ^

# [# B, R8 j2 m2 D, S  r! E. Fto get-color0 s8 l$ k1 S$ j! c6 q7 A3 w2 b9 ^
+ S) O1 E1 f" K8 [) X9 i
set color blue

7 Y! y- D9 O1 iend" X! u% S! e8 f+ h% R

1 q5 V/ o" u4 I" s& Dto poll-class, B5 m, |7 C+ r+ b" e; w0 M- _
end
2 S( X0 u2 S: I9 U. M1 i7 Y
3 [% x! }! [8 W0 L3 h. u, Zto setup-plot1, Q* Y2 x. h7 [

# I- i1 _; K# o/ h/ ?: y3 M, L6 Iset-current-plot "Trends-of-Local-reputation"
7 Z: B5 `! K7 ?* o% r' ~7 I/ R

( z  b& S+ H' O6 D9 d' Eset-plot-x-range 0 xmax
) L1 H1 B6 S$ b) x. X; n$ x- m
) }5 ^6 m/ f; H( F- N/ _
set-plot-y-range 0.0 ymax
% `. l% n! H" K9 G
end
( y/ \. J" J) Y1 n6 z2 B! R6 g0 e* M3 M+ ?6 X) H1 ~; P! b
to setup-plot23 Z$ O/ a) O- v, {
) r! A; c. x9 ~0 k& V$ h( W$ F) j
set-current-plot "Trends-of-global-reputation"
( F; J: u7 O  d* `" \  K+ @
* _; N6 D8 f$ x
set-plot-x-range 0 xmax

% d/ t" B! L' }8 \/ S4 k: U; E* b
set-plot-y-range 0.0 ymax

5 K+ k7 X5 `; @1 j; oend- `0 k  w+ ^3 ^3 @  ?* n4 }- s

- r/ V: T3 [# B8 }8 v! n% tto setup-plot35 V8 I* @* l$ L5 `: b
/ o" x% A, B: n7 E
set-current-plot "Trends-of-credibility"
- A: K0 C" X( |- J

- e! A+ J4 A# J& L6 |  Aset-plot-x-range 0 xmax
! s9 Y% ]1 K+ [+ w+ L8 d

7 q6 l9 o$ a' R2 I5 eset-plot-y-range 0.0 ymax

7 Q* W- [: |! R% [& j5 nend
+ J/ o: C  W& A3 B4 j' }7 S" D" b2 ?
to do-plots# z* m% V! @1 h3 g/ y; r* m, l
set-current-plot "Trends-of-Local-reputation"
' O/ r7 M0 _, [0 B9 ^- Nset-current-plot-pen "Honest service"7 ^8 T/ ~0 [  I# \) I
end2 i$ e% b7 K( w! {; q

+ ^- [+ k; c5 {+ Q# x) ]; 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.
4 M  e: w4 S% j, {
: m7 q8 k( i  ?. i7 k; Y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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