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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:# }0 u* C: F' P) P
to do-business
+ C1 Z& E+ O! n( L5 J: ? rt random 3606 H. n1 I* X% f& X$ m% w. \
fd 1
7 m. e0 ?& |# h* C* M/ b* c ifelse(other turtles-here != nobody)[
* x$ d6 M; E% X% e6 f. e3 O   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.
9 c$ D1 K% l% R   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
) G. |6 k- @! X7 B. `% ^% u   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
! s5 A9 U& t- ^! q2 U   set [trade-record-one-len] of self length [trade-record-one] of self
8 p8 C& R- I$ L  x* F7 |9 i   set trade-record-current( list (timer) (random money-upper-limit))2 |% R. ^$ }" e4 |' B3 F

0 x3 y% c; V# W" \% c$ W' Z问题的提示如下:& M/ }9 H+ R' W
0 Q. e! ]4 l* q& e' |
error while turtle 50 running OF in procedure DO-BUSINESS
9 J. z5 l: U/ l) w6 l1 m0 f  T  called by procedure GO2 X$ P9 I1 |7 K& Y# s) ]" r8 W! x' v
OF expected input to be a turtle agentset or turtle but got NOBODY instead.! g" \) {0 R, ~! |% u
(halted running of go)) U! m7 T/ `0 l
: j8 ^; }6 d2 q+ S& m* t$ Q
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~~# _) |, H, Z5 R) Y# \( w* Y# G
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! \8 p" M7 Y# i2 Z
globals[! ]" u! D# J" |) S6 W
xmax/ _3 j* D( L$ J4 L
ymax
& `5 {  p0 g" Z# L# q3 w, D8 rglobal-reputation-list/ z/ x( d) Z) I  h

" g' d8 `2 M% w  K0 B+ i) F% v;;
每一个turtle的全局声誉都存在此LIST0 \8 q8 c) \# `, f7 m$ ~
credibility-list
4 c: y5 R% F' H8 m4 G;;
每一个turtle的评价可信度
, l) ^* |4 N( {5 G8 Ghonest-service* r5 h3 h" @, s; D4 M5 p
unhonest-service
$ v8 C6 L2 R" a" t; a9 [% V& {$ xoscillation
! w1 }4 Q1 Y. Grand-dynamic/ v1 {0 Y/ X3 p7 ^7 x1 f! u' ?
]4 `( [! Y+ u; ]: z/ f9 y& Y
+ z% m, S6 B1 s
turtles-own[& Z5 U6 f9 R5 }; J
trade-record-all! a% L& |+ f7 L
;;a list of lists,
trade-record-one组成' C! T) |7 e5 j: d5 r5 p( X
trade-record-one
( N! x  q. K9 q1 l% N; P+ E/ M;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
/ ]/ B$ C5 |4 T" l" v# x* `: @' @, E. Q) H& s6 x
;;[
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]]
' `: |3 [2 I' ?* V3 {; utrade-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]8 q( N7 Y1 V% k
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
( H" e# j8 H& z/ @9 ~7 ]) [, eneighbor-total8 v2 t  ?* q' r  M8 h
;;
记录该turtle的邻居节点的数目
0 E& m, i( j: z# S# btrade-time
0 ^+ Q! w3 J9 o;;
当前发生交易的turtle的交易时间
5 I8 F9 Y* \2 |# S6 M+ zappraise-give5 ~+ p% }4 S) |1 E
;;
当前发生交易时给出的评价$ N; n4 |; B; Q$ e" s) T
appraise-receive
$ r. B$ Z2 t0 @% a( W+ N;;
当前发生交易时收到的评价
+ i* Z* J. Z5 h& E" M- c4 n7 e8 xappraise-time1 d8 L) R1 N& N
;;
当前发生交易时的评价时间
8 n* A9 f, j' k$ i3 Llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" g% ^4 Q! ?+ U+ z. G$ Rtrade-times-total: N/ W9 D$ ]$ q5 U) X# B+ R
;;
与当前turtle的交易总次数0 f% N. U# J8 Q* R! I9 u1 W
trade-money-total
5 S% o, m7 U3 o) f5 f3 T8 p# b5 c;;
与当前turtle的交易总金额; `0 D2 a% ?/ a8 w
local-reputation
. {6 n# F) y1 i# M' G( Sglobal-reputation2 E$ C. \, c8 M; ~
credibility
# ~* X) j0 b0 q" @, W) x8 [6 C;;
评价可信度,每次交易后都需要更新
1 ?" e7 Q' p0 a# m8 Bcredibility-all
- j7 z3 s8 O: \' v;;a list of lists,
credibility-one组成。[[1j的评价质量的评价][2j的评价质量的评价]……[ij的评价质量的评价]……],其中一共有people项,根据
% k; T6 P& F" a
' ?) {9 G& i( [( t+ x0 H;;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
. B( P6 g- u1 c7 a0 hcredibility-one+ b7 e1 k7 n: G1 Z
;;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people3 b' j  e0 W3 R6 o
global-proportion/ K, X  M+ E" @8 G* h# X% n' A
customer
- P& j4 `! M& w# E' S9 ?- \& mcustomer-no
& L5 t7 d5 U7 M: C8 G8 C$ ~trust-ok" }+ E8 H* x; {# t
trade-record-one-len;;trade-record-one的长度
' _- S, V" Y. }% Z]
8 X4 ]% k* H6 O8 N8 H. W
8 I" a4 |" H. U$ l+ U# V" I5 M;;setup procedure( S! c# B7 \1 Y  E* v

* j' ^* b/ \; ], Z* b2 _to setup% k8 z# E  S- T! ^1 D
* s+ q# Z: G5 \  a0 k/ N
ca

$ y6 z6 Q6 l. y6 S: m& `2 ~  ]" t; c2 Z% c4 u1 H! d1 E
initialize-settings

' D$ t6 o% R! X4 Z! _
4 q0 k. S) z9 c6 Zcrt people [setup-turtles]

, |1 I' R- I" l4 _! H
' F- M& _" [* p2 b* z( ?# W9 {reset-timer
% g! `" q8 e( \. |" l  i- y  i
9 z5 ~" `+ d; a3 _0 F
poll-class
: c. u7 X% G: }" I

+ a* S# q; a( o% D9 Vsetup-plots

0 U) v2 z6 ~/ M0 o% b# n% m3 i  K& H; W' ]7 E6 e
do-plots

+ q; q8 E1 M6 |: rend2 }5 f4 e; K6 w4 B5 S/ s

# |2 E  i0 I, p9 q8 @& Cto initialize-settings$ R; S. a) o7 X& U8 n: U: P: }1 B

4 f0 S( A0 g0 Y  y! A/ hset global-reputation-list []

+ b% U$ \$ p# K+ K6 ~5 l- S7 |5 i! I2 m4 h9 N: V7 H9 p) @* H
set credibility-list n-values people [0.5]
: S8 p4 {8 x; h7 W

7 N8 u9 l  K8 Tset honest-service 0

4 ~$ z# [) s8 v- k2 O0 e3 B1 r  Y6 l: z  J
set unhonest-service 0

9 B- o! {% h2 G7 [3 `
' s: R2 G& t0 Tset oscillation 0
6 x5 }1 j8 H- G+ ~2 X
# o4 R$ S& P2 m( e6 I" m5 [+ a2 ?
set rand-dynamic 0

# g6 M+ ?  E- Q8 e3 [/ s: |end& K! g- r/ G5 K8 Y/ z# d; y

( L/ ?/ u5 A/ F8 Y7 ]! k& \! D. wto setup-turtles
1 N0 A6 K6 O' z/ dset shape "person", {* Q/ ?  U! q% j, Z5 B
setxy random-xcor random-ycor
" y2 u! V5 ]1 jset trade-record-one []* d* E& M" U/ u; S; f5 ~3 P

$ H) S, m* u: S% L. Eset trade-record-all n-values people [(list (? + 1) 0 0)] ' f) n; o7 l- f% a

2 V* D' }2 G! C" w) x. N. lset trade-record-current []
2 f) G+ Q. z& Y$ H2 h+ I( iset credibility-receive []2 |7 [, \# i) y2 w+ I
set local-reputation 0.5
. Q, U/ c* E( u1 ], b4 k- Rset neighbor-total 0/ O: ^' W7 [- E
set trade-times-total 0  n  T5 u! T0 Y9 e7 G
set trade-money-total 0, N; ^2 N' \. @" Y! k/ f: `
set customer nobody; \  K' Q  J' B9 k7 x9 C! r' [
set credibility-all n-values people [creat-credibility]
0 F; x/ {3 r0 a: i) g4 d( L! mset credibility n-values people [-1]
* T& H- }; t# F# xget-color
% ^9 |$ b9 y* I8 I2 N! l; }6 g# W

; I& z( m& j, C% _& bend
: W8 u% t; c! U% U) z
- F4 R! s: D) K& X- P6 Q: P' V6 qto-report creat-credibility
- `; U  c8 T  w6 ^" k5 A+ Qreport n-values people [0.5]
: ^- N5 i0 A: }1 `end$ E3 |* V* V+ `+ v# l% N! y
$ ^$ X3 `' H7 v, O' P
to setup-plots
& |9 I, m* ?* L( P. d. t& B2 M+ n* C
set xmax 30
0 r2 [+ D: U. D9 V* w+ H, t& L

8 v! W6 G8 ?+ qset ymax 1.0

- q) @, k0 N+ t! x9 A, R5 l* R' v$ s
clear-all-plots

2 m% i  v: Y6 C, R
, G3 }6 n" [4 E  Ksetup-plot1
9 G( i% Z% C; `+ m+ F; v
1 t/ ]! {4 J* |, O
setup-plot2

* l) n8 k0 |& P
& P2 a+ f% B( L* R: Csetup-plot3

8 G1 n' c& H" s/ X' L' \/ Q; ?7 lend) c. ]* f- w0 _1 X

! k3 I3 H! R. W! C;;run time procedures
2 P* t6 Q- V1 t) S8 \  V; \+ g- W# R7 [" s1 ?' C
to go: [7 J) a5 U: y7 u
/ B" a  {+ J, g) X6 i  o# M# G
ask turtles [do-business]
3 w" p5 G, b5 u) o- ]2 d5 T
end1 H9 Z% i/ E/ {$ W+ |- ]1 _' ]" H: V

% ^; W: j$ J# u  v) _6 q& X  cto do-business   c1 Y6 }( Y, V7 L& ?& g
# q9 c# ]' @( Z4 i; E! w! F
: n8 _$ F, ~6 I2 W9 `: y
rt random 360

. g7 K7 l+ w% R! M, @5 j0 M6 A0 t# h/ e  s- M# i$ u! m! R: Z% |
fd 1

3 j' v  w7 d7 D- ^- @. t+ u7 C1 [8 @8 M
ifelse(other turtles-here != nobody)[
. ~- Y1 s  q; D9 _# M. v
7 M; d8 p- ~/ H: K5 C) K0 M  U/ N7 H
set customer one-of other turtles-here
7 W& r  A8 t0 c5 F# s

2 E0 [5 k. R: a# q/ o;; set [customer] of customer myself
! c/ P8 D: w9 }! c* e- b

% }! {2 i9 o/ B2 gset [trade-record-one] of self item (([who] of customer) - 1)6 Q/ H/ j2 s! T* E8 }& `9 f. \, \  h
[trade-record-all]of self
; R/ K  |. L) s/ Y+ c% u1 ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

: n. s$ S( d# e5 U. F+ `4 C; P, _" n
set [trade-record-one] of customer item (([who] of self) - 1)3 X* L' E! D# s/ {+ K7 V3 b
[trade-record-all]of customer

% [. t5 J7 |. H6 R! J: U$ ^+ c  v" t5 _4 p, p
set [trade-record-one-len] of self length [trade-record-one] of self
+ I8 U1 o# j. Y3 a9 n3 a* H
0 A8 p* k8 y) U" g7 {/ |; ^7 e
set trade-record-current( list (timer) (random money-upper-limit))

2 i1 `1 T9 A" R, o
  }+ s. J+ D" R8 ~5 Cask self [do-trust]$ g! T" R! G: }8 N' _4 h. Q3 u
;;
先求ij的信任度4 k, O( e- `5 R8 ^/ A! W
& V' H; T9 z& n( R9 [
if ([trust-ok] of self)
# Z: N' l- {6 }" H3 _; Q& w;;
根据ij的信任度来决定是否与j进行交易[
, l- V0 [5 Q' r) N+ pask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself. F3 y; Q# ^2 O# m! s
5 J$ h) o2 Q+ A* y9 x' q$ [6 k% Z
[

( i' o  M7 \% o' P& n. f- U' S8 b2 m* [) ~; e3 J2 i
do-trade
% T' h  }- b' x

! z0 b6 T! t1 Jupdate-credibility-ijl
6 C1 H. `+ ^: z! h5 J

$ C) l  y! m/ [- Yupdate-credibility-list4 S5 C% h$ a& s  C8 }
; ?! t% `2 v3 s2 w5 M; w4 M7 r

: t5 A+ ?3 A( w/ f" O/ H$ I: A& `update-global-reputation-list
2 I& m1 [, C3 S8 ?7 E. C1 I( {

4 K# ]# W; T; y) D) ?poll-class

5 ~# h( x) x+ B; S$ ?
4 u! G, w/ \0 k; V! p" [, `% ~9 H: wget-color

! D4 Q: v9 B) ]. v" w1 o
9 c! C- u- A6 {" z' ~9 V, O]]! u$ k( _# w7 |# j# y0 b
5 X8 V+ F" u' d# N  h# e
;;
如果所得的信任度满足条件,则进行交易
7 y: [$ e$ c7 F( ^1 e
$ I( i& B: ~/ J0 n, W+ G$ Q& s[
( O- S' @/ `/ u7 Y1 K- d5 z; s( S

6 `& W1 C" C8 srt random 360
" |- L) u8 @% N1 M$ d4 H: Y

9 U( X- t" J* ], q, xfd 1

1 a1 l" e$ A" {% O5 s% G! U  n: j" g" y2 s
]
, x/ c7 `! [8 H% Z8 b/ X
* a1 L& y  {( [1 s0 C
end
* l3 i- g/ O8 K/ t- g0 t' V; c

+ @3 Y0 w- E5 M6 r8 uto do-trust
. U$ p! B6 i/ xset trust-ok False
. q& \! O% I! w( G3 h( C7 i- N' X( ^9 ]

& k( a  c" K& ]8 H) I- n+ `! d. S+ @let max-trade-times 0
6 j3 Q/ I  X2 g8 q1 i  k( s. e' sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- w* [" t! [( }3 }2 u
let max-trade-money 0
( c' G  e$ k# G: B- rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" K" f4 x0 i( N2 ^5 b" A9 \  E- I1 slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ y, w; b1 N* J! m# f! l

  {. _7 M" g$ a% C- I; J

# Y( H5 l8 u) d& E  Zget-global-proportion+ N$ P' C- M0 j  m8 A0 t( H
let trust-value3 C5 U8 N4 O' x, q
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)
# D, G/ l8 G7 I+ o- I
if(trust-value > trade-trust-value)0 |5 e8 D' [' `
[set trust-ok true]  u: H6 T9 C; {6 Y
end8 E& d+ g, W. E, v. a
. b+ r0 k% Q2 v- f" A/ k( v
to get-global-proportion
2 n* |! L; f3 |6 n9 r, A1 Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 e6 f7 p- G/ w+ g
[set global-proportion 0]  y* N* Y' u+ `! d# X
[let i 0
5 w; a) ?+ w, F  Y; B, r6 Nlet sum-money 0
  B4 o# x) n; O; p7 |2 o7 |while[ i < people], a( {3 j) C" V( K8 f
[
1 P( i  ]5 v  E* ~if( length (item i
( J5 x% c% Z7 |7 I* f[trade-record-all] of customer) > 3 )

8 Z% O, J9 b2 v+ Q+ _[
8 b9 u9 W7 P, Y  b: L& b7 Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' a2 i- X9 z3 P3 {]
& n% [  B2 m2 V1 G/ ^]$ N9 N3 w! F4 U6 W/ ^1 [
let j 0' b7 C" j1 f) |* c6 m. S# F" _
let note 0" n* w6 n, \  A( v  M& c0 ]( v
while[ j < people]
' s8 D' G2 {( p) K[2 w+ R7 B" J/ b0 y
if( length (item i$ C3 ~% l4 w- d) X+ a
[trade-record-all] of customer) > 3 )

) |/ W  t4 u3 q7 k5 I[
- O$ H& _' R' }9 K) h, M0 k7 \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 R5 M) E9 w7 H8 J, B$ ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( U8 B( u4 r" S- D: ^& ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ {1 j2 h/ K/ a) N' O: p
]
/ Q. D# Z* ?% ?' U" d: P  \]' g  [: ^7 C0 C, @, p# K
set global-proportion note
$ D1 o- b& ^% s$ `]; \2 c& M2 E% R
end6 J( d+ o6 B) o* [, j

) b  _/ Q; a# Z) E4 d) `+ N+ j3 u' ^to do-trade! }% U: W! q# I9 n0 @6 o
;;
这个过程实际上是给双方作出评价的过程
! E+ b6 o7 w1 d$ m" n7 M+ S6 o2 dset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
1 c1 B2 k0 V4 Dset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
+ J3 I' D9 E2 f# E: B3 y% U% Kset trade-record-current lput(timer) trade-record-current
- [: r7 Y" @& j% d$ {; ~4 z;;
评价时间9 n, g7 E+ m3 e. z$ K* H6 _( A
ask myself [* D% r' l$ p' ?7 M
update-local-reputation/ N, Z0 |( t' `. O3 |
set trade-record-current lput([local-reputation] of myself) trade-record-current2 w. [9 ]" p, Z2 J
]8 R4 k2 Z5 M) {% b9 ~
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ N+ U) K* H4 w4 r; K
;;
将此次交易的记录加入到trade-record-one
5 N- R. ~. `2 s9 p' \) Yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! A* e3 `8 ~0 F  S9 p+ x& Klet note (item 2 trade-record-current )8 s3 c+ b0 X" d& v. Q$ b
set trade-record-current
7 F$ G0 o" y% Q(replace-item 2 trade-record-current (item 3 trade-record-current))
5 n' I# f* m7 b
set trade-record-current
  X5 C7 X) s/ z) l( r6 S& L(replace-item 3 trade-record-current note). O; _% L( r1 m; u1 R! G3 O$ w8 W
& {! k7 Q0 e, s% r8 n2 H! H
9 v' l& P; K# l& }: x' o
ask customer [5 M7 `9 w% S2 n9 |
update-local-reputation6 B  [. L) j7 W# d5 G; V0 \
set trade-record-current! K8 w+ I9 X" ?6 G8 m
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% J# k2 p9 z, Z- _$ }. L; G
]
2 k+ Z% S) x/ R( Z& F5 O& q0 E& R8 X+ e2 N2 `/ t  r

( D& e8 f# \! k  q% E, f2 E5 t" ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: ^4 P& y$ s, K

/ W  S5 [% W) }5 Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 B- w4 g& m, O. g;;
将此次交易的记录加入到customertrade-record-all
) Z2 j9 s/ }( w9 e7 x  Eend
  n# h5 G) N  d! Y  O* w
' o7 t/ k4 V. Y# wto update-local-reputation8 c5 ^% \6 p% Q: {2 R! S
set [trade-record-one-len] of myself length [trade-record-one] of myself
  {* S# ^1 U3 ?- V" P6 q& N3 D
* Z/ ?" m0 ^" Q: r' E; g
% z) j0 g+ T, }$ W;;if [trade-record-one-len] of myself > 3
. {) d/ I9 I' r. U. U8 q$ k/ N- V
update-neighbor-total/ H7 \0 t) J( P2 I' O" {. Z, H
;;
更新邻居节点的数目,在此进行3 n: _, T9 q, Q5 \# f. i
let i 3% A6 v# R1 h/ X2 b4 |) @) g
let sum-time 0. Q' e8 \! ]. T1 N
while[i < [trade-record-one-len] of myself]7 u' U0 W" S3 V* T9 S! k6 G
[
+ \% k8 t- f0 B$ I; M) d% {* Vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% @- i! u9 y, Z* U. Y0 w1 Eset i7 }  _! ~3 i) r* E& e  E
( i + 1)
4 h% j8 ~' T8 ~1 M; f% \& {
]
9 V3 B' j  J" U7 vlet j 3
$ m/ S4 f6 ?* R) V$ P$ slet sum-money 09 }. R" l8 ^( m
while[j < [trade-record-one-len] of myself]! a8 S( ^- T, c: a- d& s/ q4 N
[
# y4 p  c# V; o2 b0 [" `4 H" Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)3 ^) E, W/ h" H" \
set j
; P+ a$ t' R; j) V, J& [1 _( j + 1)
( B9 s) e0 I. C# l
]
) |- q" e9 D5 r% ylet k 3
; ]6 B0 P* M" B/ G+ |- F; vlet power 0
- ~  x# l- @& y+ klet local 00 u9 s! n0 i# H* U/ m7 D2 E
while [k <[trade-record-one-len] of myself]5 W* B7 P6 r2 K3 k
[, U( v* D& V, r3 `! L3 j. M
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) % K( k: `& ?' e
set k (k + 1)/ D$ j$ o; v8 j/ H* j
]5 [3 A( K; M' _4 o# L
set [local-reputation] of myself (local)) Q2 U# `" T* S7 o$ f' V) a! y0 j: ?
end
  p3 ?4 j; z3 N# U4 Z, ^5 b4 O5 q( W0 H) `
to update-neighbor-total( l* ]% R4 W+ f1 j% X

+ b7 I( x9 R" H! Iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: d8 H& \8 I! Z. A( F) L( `9 }: M

6 ~1 g& s! M7 I! R! a! m
+ U, f6 I) y0 a0 K0 u, G
end. e9 x5 Q6 c4 _. w5 ]8 l
" b! R6 k4 y$ N! H& H0 u9 R
to update-credibility-ijl ; L9 j+ e1 }0 S' M
) G9 W& \4 s9 a' Q: s; `. j% U
;;
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。; I/ _  h0 o4 e( S4 Y$ T
let l 00 h6 T8 ?9 ~, m
while[ l < people ]0 \! s" q! Q) N' N5 F& b
;;
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
' d6 q' [) q& ~+ w( n/ k[
( _  e# N1 x' M- f" b" J9 c9 c6 elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; f$ e1 b. ^7 K: \3 q6 k" gif (trade-record-one-j-l-len > 3)* a: k* v, j1 R; r4 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
# D7 \8 `( J0 M: G* Ulet i 34 p! K+ N( R/ h) z+ S& E* s- g  W
let sum-time 05 Y) r/ D$ [; t5 |
while[i < trade-record-one-len]3 R2 F* U: `; U- {
[
; P3 Z5 ~* F% J! X5 iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' U+ o- n$ a" d1 m: }" X
set i
# }7 T1 |7 M$ C  K# V8 c) q: l6 {& T  y( i + 1)

2 X: Z) q8 i4 X# U/ n]
8 _. v$ D; _8 S* d9 _3 Vlet credibility-i-j-l 05 v: f+ A3 m0 L5 r( Z
;;i
评价(jjl的评价)8 S, G& \4 J2 ~1 z3 ^5 w
let j 3
, s8 [- Q/ w9 K; w8 I9 r/ u9 Rlet k 43 t* J4 ^# O$ N* m
while[j < trade-record-one-len]! ?: ?& J( B. x5 T, o
[' `, [1 j! t+ B, b
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7 J& }2 g# Z  a8 P$ e. v! |
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)
+ i+ ?& T' R* T5 m  B7 u! ?set j1 {( |7 P" y! C- R3 n
( j + 1)
( x& R; l# W8 ]; p, x& Q+ m6 @
]# M" @* g* K/ ?
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
, `! c6 Z6 }' e6 n7 {; G! m" i" w! f

8 f) u% i: C- Z& l$ [& klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 ]2 {8 p/ d8 w$ n; `;;
及时更新il的评价质量的评价' n; ~0 ~9 r+ u) i' j, v
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 \- _" Q3 C. L. t- r% t: |) ^6 p
set l (l + 1)
) [# Z0 O  q# u9 x  j4 q]2 [% K! Y. L7 A$ N5 V
end9 {6 p5 \" m- o

) M3 j/ l1 {2 f3 Xto update-credibility-list" ?5 ~) Y" ~6 N5 R4 ]: S) w
let i 0! K7 r4 n& O( z% A( `% b/ t4 `# U+ L
while[i < people]6 ^: Z4 g# J: a" H, s4 C
[
  C4 O# E3 s1 ~* Tlet j 0
6 N1 W& Q# {+ z: i) }4 vlet note 0
) ?& L1 i( ?6 O4 B* T' Nlet k 0$ @8 C# y$ \8 @. L0 p6 Z- ~2 J
;;
计作出过评价的邻居节点的数目
( j+ l# C0 B! Z' l& d5 p) d7 Iwhile[j < people]
: n8 I% I3 ?& Z8 b2 Q[
* s4 o1 E5 V; L, _3 W% W9 |/ eif (item j( [credibility] of turtle (i + 1)) != -1)7 K9 w: z. P$ x5 ^8 r  k' {+ z
;;
判断是否给本turtle的评价质量做出过评价的节点
5 g7 i% a5 k3 T. Y) a- T' I% T[set note (note + item j ([credibility]of turtle (i + 1)))# Y) A! w; L, U. ?% W
;;*(exp (-(people - 2)))/(people - 2))]
7 K' H) m& L& ~+ ~4 c; D) ^
set k (k + 1)
+ g7 ~. W. l3 C* I/ I]4 O3 X- ]+ T, u
set j (j + 1)5 D0 T" [0 u: h- Z
]9 P8 y3 z5 N4 \7 v
set note (note *(exp (- (1 / k)))/ k)& a& A. {% M  m# a4 c) u, V5 U
set credibility-list (replace-item i credibility-list note)
  v6 f0 f$ [0 y" w/ }set i (i + 1)  W5 [2 j. j: d
]$ j9 |4 l( ^2 |/ [+ t6 T
end
0 [, x. B& V+ |: `! A6 Q* V; u) K
, i/ u6 z  Z* E8 E, p' k' }to update-global-reputation-list0 E* J5 ~( A. m$ c, F
let j 02 ?$ f5 o% e6 z" y- D( y  Z
while[j < people]
3 w, j& k; J' d3 X, L7 c) R[4 }, Q8 P- d) G9 a' N
let new 0
) U) y( h- u, ?! g;;
暂存新的一个全局声誉
3 u+ i$ [0 f- ?2 [( g. A+ D+ Dlet i 0# V+ O/ u5 z# s+ E& \
let sum-money 0  c( h  C* z+ G9 M$ }' K
let credibility-money 0
1 b( W9 Z; a7 cwhile [i < people]
7 z4 f9 N8 w7 g7 y* i[
  }$ {# Q! w  W0 G, {' Lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 @* u, B! K5 {5 _1 a8 Q- M0 H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, a/ D: u( {/ T9 b* w4 Aset i (i + 1)" x( M2 q8 O# K6 Z. v' |) E
]
/ t( ^1 T' s$ z5 c) ]9 e' [% g& \) rlet k 0& |$ w$ x  q2 R# R* l
let new1 0
# h* R! R4 w# H/ F/ cwhile [k < people]
) z1 |8 [& {  W5 w[
8 \2 {) o6 @5 B# E9 o0 k4 o' qset 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)6 O/ b  r: N$ ^) v# U
set k (k + 1)% \9 {; B" v, L8 g5 ~* s* G
]
) G9 s; E: h' B) J( ]set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 \, [; F! p; a8 U/ ]8 g$ Z) M
set global-reputation-list (replace-item j global-reputation-list new)
5 c8 _  ^/ o  J' t% U% @set j (j + 1)& C  r: R& f* p$ W$ J6 R
]
9 b9 b: ?# f0 k; bend
& K  D  q6 Z9 z8 ~3 {( O1 Z; T" y* x7 I0 I
  K, T; l! ^5 I% s2 c
: U) b- Q# k8 A; I2 s
to get-color$ Y, J, h2 C4 z: x
2 ^* @3 p2 g! j$ n; T
set color blue

5 ~6 b* n( j* O0 t* @6 q9 B2 J5 mend9 \# y; m. [2 _9 i4 ^3 H) _
+ R2 R" h  _8 _  m5 `6 r" g
to poll-class
. ]+ Q; g) y: R- K2 E; oend+ d! _1 t  c3 d+ |( N& x  m
. m! _. A' ^, K! u
to setup-plot1
6 z0 \4 |* ~$ Z; W7 g. J, ]3 E7 z
) O+ _9 N( D# b0 B" q2 s$ Tset-current-plot "Trends-of-Local-reputation"

$ x% U0 H$ ~! w5 U( E
6 x2 J; ], U7 M, v3 B/ aset-plot-x-range 0 xmax

% U+ K/ ]: P. W% }- ^+ u( _4 C/ _. ?+ T2 z/ }
set-plot-y-range 0.0 ymax

# q2 B* _0 l, V6 ?. W6 g2 }( Eend
1 c3 l) @! k0 R3 k
4 b. @3 _/ E9 n2 i) Bto setup-plot2- ?2 h& g# m! \4 E6 g

( I+ B8 o. M( J+ O$ bset-current-plot "Trends-of-global-reputation"

6 U- \$ x* f( e0 i+ F2 E9 P+ N, J
/ i% U7 o' \& f, A0 b* r  `set-plot-x-range 0 xmax

( A5 J: C3 A# f& B  d. y& j! N' H% _
set-plot-y-range 0.0 ymax

- M$ `+ R9 o' I# @+ h% T; M* dend1 d$ s2 S& y6 R$ g: t6 X9 L

' g  Z7 W8 |9 ~2 \, |) Eto setup-plot3
& ]8 U* I& s! w* c% `, q5 Y& Q
# u4 j2 `7 Y6 a! |4 u* gset-current-plot "Trends-of-credibility"
* R4 L/ N2 p" i3 o0 R& }* ~$ }
. t2 G. B' k" l* s$ J7 G7 N% `. M
set-plot-x-range 0 xmax
8 X+ l! o" I7 e, x  O2 D
9 i4 h! N" p( m. R2 ?8 m4 B  R
set-plot-y-range 0.0 ymax

/ }' G# T! u! P$ e1 z" h' r# {end9 ~" ^; v- y, t6 g0 j

% u9 D  E. g! S8 ~6 u2 q" {7 E% hto do-plots$ N7 n8 h) A" M) K4 P
set-current-plot "Trends-of-Local-reputation"* R) B0 D0 f( ]9 P6 c1 y
set-current-plot-pen "Honest service"
2 a/ _8 C7 [# h5 }# j& g! E, P6 Gend; l' f- b% T: \: _, x# q+ T

: l1 ~. O* M" W4 X1 r) l5 _[ 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./ X( N5 E6 p; j3 `

& |1 g+ q  n& ?+ Q6 x' F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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