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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:
1 y9 B9 |" D( j7 l; g+ q, ~  }to do-business
  I) U! _3 {+ f3 E rt random 360- e$ Q3 I! h+ A
fd 1
0 `+ Y8 J# Q, c- N5 _* a ifelse(other turtles-here != nobody)[
# h  G1 b0 O: O! c; z" W   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.
: i9 [' H9 M, {9 }  n3 j8 p   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
2 c- }0 p1 F4 m* \% h& L+ }7 T   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
0 h. w" l* L( g# G6 s   set [trade-record-one-len] of self length [trade-record-one] of self
% ?* a4 P7 K: d8 u% U# d; _   set trade-record-current( list (timer) (random money-upper-limit))
! K: x9 s, A3 S9 j
6 k$ E; a( Y0 O问题的提示如下:2 F8 C5 B! ^0 Z' x0 z% R

# I* {8 w! \8 v7 B( |: h2 zerror while turtle 50 running OF in procedure DO-BUSINESS
- X$ {) `+ x% c7 W5 l, m  called by procedure GO: _: y, u3 [! {/ ]
OF expected input to be a turtle agentset or turtle but got NOBODY instead.0 s! G7 h* T$ _
(halted running of go)
) ~, h, r) |- b% |9 m) l
' _: }" h7 H  k$ i: w9 P% b% 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~~- ?* l' e, X+ a% R( U" P. m! R1 J
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) c; }/ `" F( e0 g" ~1 r6 X  p: `
globals[
0 D3 A# D; Z& f7 A3 ~' U' B5 c' xxmax8 v# V6 p! x& L8 {
ymax& v5 L" t; A0 E. H! Y" z0 ^7 y
global-reputation-list
3 v/ c" |: K. `
" {! n1 D+ S1 O;;
每一个turtle的全局声誉都存在此LIST
* W# i6 `$ \& bcredibility-list
9 ^& x! g" Q& g2 O;;
每一个turtle的评价可信度
6 W" L6 a$ i3 Chonest-service
9 Q- ?. b: i! r/ B3 M9 ~unhonest-service8 E& d5 \8 k, d6 B/ b0 C$ D
oscillation
6 J4 Q# K0 ?# P) Vrand-dynamic
" t3 N6 R# U: N6 J, c4 A]
. o. F, U% s+ `( W" M. G, D, y- k, N
# a  Z( y1 [4 m. iturtles-own[
& ^& n/ b$ T% R/ x6 y3 y/ B4 ^trade-record-all$ N9 G+ D- D/ e
;;a list of lists,
trade-record-one组成
- A, U/ N- e) t7 O$ p2 s* @4 qtrade-record-one
) W$ D3 {) P8 F/ l3 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% s" Q' Y  h4 G; p0 J

- K1 f1 w" H) n) x4 s;;[
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]]
% h! T5 ~1 q- btrade-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]
- r; _. r* u2 R+ v: kcredibility-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
- q/ V9 }$ l( B3 `9 N( m) a/ p3 vneighbor-total
3 o+ Y% n1 p0 H& g/ ^- f- j# K;;
记录该turtle的邻居节点的数目+ p0 X6 w' m- N. N; Z
trade-time7 p, p" X" ~/ {9 u
;;
当前发生交易的turtle的交易时间" N' G4 F) @7 @9 v" R+ d; k
appraise-give
" k1 z" [1 M9 A' T( C( }# I" |( x;;
当前发生交易时给出的评价
7 m) h8 P5 J, j4 Y; Wappraise-receive
+ t# Z% M) J; S;;
当前发生交易时收到的评价
, \8 z9 M5 q2 R7 z2 Vappraise-time
. {/ B% b( k- E;;
当前发生交易时的评价时间
4 V* L9 _0 K/ Wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 T. ~! x' H5 q# Ntrade-times-total5 i1 S/ Z+ m% m' K
;;
与当前turtle的交易总次数
. }" o2 i. g5 B. jtrade-money-total) D% \7 W) H; {5 x$ p3 b! L! F
;;
与当前turtle的交易总金额8 i4 o0 g. ?  s$ f
local-reputation
# Q- j) |5 M- T7 r. E2 ~global-reputation/ T: f( ^1 x0 m# G. x/ w6 x2 N
credibility* m0 r- ]! x1 G
;;
评价可信度,每次交易后都需要更新1 I" l& s, O) O4 j
credibility-all
" b! y" B7 O- P* a, W5 U9 T;;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
* F+ g  b/ _" v$ M, D  @& N2 Z( h! ~$ O5 O# g- [
;;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
( t& r% L. B# Q# p; X* Ncredibility-one% ^$ L: G4 H' M- H
;;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
) m8 L$ K6 P) x2 l% P& `* y4 H  Sglobal-proportion" i- [" X- K  J7 b
customer. z. r% b0 z! s! w0 T
customer-no9 q: t' C  L9 m! D8 o
trust-ok
0 J- d+ o& Y, W3 @) r$ Y- ztrade-record-one-len;;trade-record-one的长度" N& Q- Z  c5 ?6 W7 }; K2 [
]
3 s( V4 o7 P+ K5 _4 y
9 f! O0 |4 L2 t% `6 u;;setup procedure
( m( t9 V9 C- y6 G" J. a
3 y# \( T$ E) `. i  Y/ _to setup
/ i/ _$ e! M0 L( B2 E# Q) I
# k' z- J0 g: r/ w3 Pca

! M& g6 g" O+ a* @* L. Q9 j5 |! z% _& C8 T3 d
initialize-settings
" N- d7 [8 j1 Y) K% Q: |% b7 n

- B& k  H; @* |8 o% Kcrt people [setup-turtles]

# F$ I: d+ G8 N) M* q# @( r
$ H. e' s/ z: sreset-timer

! S% Y4 U6 ~8 f( j& I! L+ j! I3 m+ {6 f  y7 y4 p# n" F& i& |
poll-class

; x7 t. U5 ^1 l7 W( j* a2 H% o8 `, F* w/ E/ ?9 ^) c
setup-plots
( O4 G4 L/ t; Z7 y
2 E' P1 Q+ \1 \5 J: e$ r& {
do-plots
* @* Z: ~- A# [. p+ ~" K4 {
end
1 `7 A7 K- p! G* }
' q, C7 m6 @( z5 ?% J. B2 O; Lto initialize-settings8 ]7 r3 }# \- p5 Y0 ^; q

. }; C. R* ~, @& `0 D' y5 {set global-reputation-list []
: `  T& v* h! Y  L% M1 S

+ o- L! G1 G. ?, R' L( d, Aset credibility-list n-values people [0.5]
- R1 H  F( o; K0 e
1 [5 g: d+ R3 @  N; i
set honest-service 0

. k5 P9 _" c1 B# U# [; d7 h8 {# [9 f% Q9 P
set unhonest-service 0
  l' W/ L& w, c5 d
" b. w1 ?) T% @( r3 f# b' H  ~
set oscillation 0
8 T6 ?/ [$ L6 O# D) G

6 y  n+ W4 C) b9 l. `( eset rand-dynamic 0
6 L5 L  Q% C1 G: Z( `  ^4 g* @0 K
end7 f3 @0 W0 p+ x# q# J) J. a

; q: H; D3 f! `1 }: T; _to setup-turtles
; e5 p" E8 r9 ~+ _  Z8 Xset shape "person"
) v& U" N  Z/ N6 X, j: d! |) _4 \setxy random-xcor random-ycor
4 o# v& d- D& Mset trade-record-one []" }: h/ I7 W+ L# [  ^0 r1 ^2 K
5 v: p- R# v' h
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 L0 L5 [0 V/ R; B- _

5 q' W5 t) Q' s. Sset trade-record-current []$ r' C, ?5 _+ y: A3 _/ D5 r
set credibility-receive []0 Q7 [" ]% [- ^8 J
set local-reputation 0.5
( P5 x; |/ C9 p- _8 n" z$ r) Zset neighbor-total 0/ A: m: Y: e" B3 |
set trade-times-total 0) C) ~* i- u% ?* \* }% O
set trade-money-total 09 P4 T, X8 N  U5 G  m6 G1 E& N
set customer nobody7 T$ o; ~- V* g5 o  n0 [, z: G
set credibility-all n-values people [creat-credibility]6 A4 u* Y+ M: E1 C9 J
set credibility n-values people [-1]
; M( W* I7 Y' Y  E0 Jget-color. G+ P* n8 T3 u& ]& n. ]5 ]3 e

& L$ D; P  N# ]7 t% kend' s7 l6 @6 N/ F" `9 h9 [" T" f! y: J
" r" N8 m1 T; C8 g5 s
to-report creat-credibility
" ]2 y! W9 P/ Q, A9 o4 {report n-values people [0.5]: i) J8 j; N$ D7 t% G
end
6 V6 T6 j( g  _. g+ {5 k: y7 s
2 X# x( x. p$ Lto setup-plots
  C5 n" A7 m* M! m6 p/ x/ ]! s, J/ _; E# X+ g9 w, W3 Z
set xmax 30
7 d' V; ~7 Q( r! a7 a. A

- b/ a; v2 a6 iset ymax 1.0
+ U2 @7 x: s$ a* i: I- Q- S
& c' U& P/ T* f
clear-all-plots

1 X( T* e5 `( d
; j1 e8 w( D5 psetup-plot1
; a$ _7 r  x+ E& L; C8 R
0 t2 d7 h! Y8 U0 z. o, F% F( R0 N
setup-plot2
( m; c8 d! j8 g7 i, S% R

% T1 r2 c! i, Gsetup-plot3
& a, g" s2 W4 w) y8 C
end
4 p+ R- A* S9 i: J1 l* _  n% N1 @! B* w2 S8 z  w. V4 R, a
;;run time procedures. R$ }2 V# N/ K5 l  B8 H( W

1 L+ M9 g: i" t& k! q4 Xto go$ ?! s/ X# Q2 p, }- z
$ \) u2 d$ n3 c  L  D% g0 i; |
ask turtles [do-business]

# D4 Y' x- Q0 I5 ^# s  ?end
( ~3 e+ `& W4 d% }2 J8 B
3 o! {# A* }6 {6 p6 ]+ j) z3 b3 w  sto do-business
) N4 a5 b7 q. x% B7 k) _) x
5 R2 O% {# F8 P4 w: p
# Q' O5 t, h+ l. u
rt random 360
$ G2 }2 w% j2 I& O$ e8 A" `. g6 v$ c7 O

, }! S5 l2 K8 j8 U! M6 \  gfd 1
) a$ ~* ?/ l9 P! A* H5 j

* h( U& i. V' Y7 |8 T) pifelse(other turtles-here != nobody)[
# s7 V2 ^) l. B' C) Q; |. F
# Y. S" {, r9 w2 v1 F2 d
set customer one-of other turtles-here

2 o# Q$ ?) ]/ T& @( ~
( G. n) N( Z$ _2 v;; set [customer] of customer myself
& \9 }$ Q6 G8 O% Q2 S

4 g3 ]& }' B# K- dset [trade-record-one] of self item (([who] of customer) - 1)
6 `' r5 X2 X8 _[trade-record-all]of self
* S  h) S6 x/ T;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

# V$ H4 {$ B+ _$ q' Z' H7 o& U3 |3 z; n1 s6 n
set [trade-record-one] of customer item (([who] of self) - 1)
* y1 C% A8 |9 m# Q7 P[trade-record-all]of customer

% o- F. ?# u, ]# P/ `5 ^& M1 K5 l, _. d9 t8 J8 [% H$ |
set [trade-record-one-len] of self length [trade-record-one] of self
9 K+ w6 i* C+ Q0 k& v5 U

, q, y8 K, c, f8 \1 N( sset trade-record-current( list (timer) (random money-upper-limit))

3 O9 K, k& h; _; M+ m+ g  ?$ }: b1 }; B' a. z
ask self [do-trust]
. b% y1 T1 o# B% v" y. L;;
先求ij的信任度; W+ Y, w) ]6 s& h) L

6 U' ^) N3 W0 \$ Y$ S4 m5 Kif ([trust-ok] of self)
6 @2 M  ]/ C+ C9 j;;
根据ij的信任度来决定是否与j进行交易[
4 w7 d% d# X7 e% u$ W* m. y. iask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself) O& x' s/ x& F; o7 X6 ]; L

* S' `3 w, |. W. K8 [[
3 O* m) n4 t# {: n% u  g' {. t( F
1 K5 U# n& q0 a# d9 K6 y4 r3 Z
do-trade
4 W0 z6 p4 M6 _! i

5 ]! i' V1 V, y: f0 U6 dupdate-credibility-ijl

+ [4 l3 O. L* L. Z: v/ O8 }$ Y5 d. V. c9 c
update-credibility-list
1 i2 Z2 L1 e5 V
& D$ y0 W* O: J& C
& h5 j' G2 s" ^9 l; ~
update-global-reputation-list

- U2 i: B/ s; p, I% A5 q) `+ @  U, h# q8 g
poll-class
) w6 J, L, A7 v; Z3 E: u

. n* \: f, Y+ f6 pget-color

$ a; Z* @2 k8 U! Y# R* [- l" t/ B- Z+ H
]]
# v) _: V" o$ l1 f6 [1 D# W8 v; S
;;
如果所得的信任度满足条件,则进行交易' j7 z2 q; x% {3 o- Y

& |8 f# ]4 c4 m4 n1 Z( z$ M5 I& L[

+ o- x0 q' F0 }0 E8 [: c( |! r( P% j( Y5 |# H' m- R9 Q) j8 k
rt random 360

: F; d6 Y7 t  X# _' h  C
  |1 P" k7 G: j  U! n+ o5 J6 hfd 1

3 i1 ?1 E' G( O0 h4 {- A
) s2 l; X  m' h1 o7 _, V! {& R]
5 Z. E- c* @7 O: m) p, r) E

$ D- M1 u4 I4 {7 Vend

3 x- a4 Y  b& s* v# F+ ?& D" T
2 B1 V( a2 K& \4 cto do-trust
# A9 a5 `$ ]  _; G/ Mset trust-ok False
+ p+ x( f; d) F, |6 d; H& }4 ?% |. e/ S
0 h( i  }4 d  V1 ]: i, ]
let max-trade-times 0! s- G+ S$ N; `; n- o
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) X: x' X8 o& q1 G( `
let max-trade-money 08 d5 w0 P$ C- G3 K3 }8 i' {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- \; y: C$ M8 S% C3 b. u% y( p3 E
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) x2 k2 F0 j! i% O7 G
+ Q3 @" L1 k; @! g" u$ \0 s
$ o# V% L" I  A* k
get-global-proportion
5 Z  E0 z+ W; C& ilet trust-value. I0 x; [4 u$ J- V7 ]
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)

. e& a/ J" R2 F% c! Jif(trust-value > trade-trust-value)
2 x2 s: @. l% Z( Z. r2 F[set trust-ok true]5 g8 H2 ?4 Y/ Q% }6 K+ V7 V; j
end3 [" C) v' S, I% X  e" a
8 d4 a2 {+ |9 y, W
to get-global-proportion+ Q5 I& P- [: M& X- ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)  k& t6 O" g+ G8 p
[set global-proportion 0]
' r3 `6 w! y( A8 v[let i 0
, C: k& G3 d# _let sum-money 04 \0 ]$ g. t: ^. m/ e1 S
while[ i < people]
5 d$ u  q: w; a8 f% a  s( X[: m# T/ N" h3 h6 m  |# u2 B6 x4 g
if( length (item i& o' [8 t( P7 b
[trade-record-all] of customer) > 3 )

& S( @5 \/ z5 n* S/ P[
6 z* g; ?, K! b; E! U# uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* _8 ~' N! {, Q3 @]! l/ q- E7 g( y8 B. P! R/ v
]
" B6 J$ a/ b, d5 n( Vlet j 0
0 z1 T+ s: A) ~6 ]/ q9 A- V. b4 W$ ilet note 0
  c+ Y; \* s/ }. K/ L& T$ T3 Owhile[ j < people]$ Y+ J: B6 q; g8 A
[
( e2 a% R8 h! B3 pif( length (item i+ I+ _- y7 p, f: Y: X
[trade-record-all] of customer) > 3 )
3 O2 `8 B8 H( w$ z: ~
[
7 m( }" H/ F% f5 R, Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 S- X3 a; m: z  ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 z) f3 j( {0 i1 I  t. x1 V/ y, I[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 Z4 `2 f1 d7 ~+ h
]
0 i4 Z  d! \- M# G3 Z$ d" ]]
% g3 j% s% w5 A- a- {set global-proportion note
0 V8 d; C& y; Y2 U; R9 `]1 X! L. Y. m5 K0 G
end
- k/ P6 w6 ~: H6 F3 L9 {  k* C8 g0 v( l( [
to do-trade! S! b! j& l/ z6 p) x$ r
;;
这个过程实际上是给双方作出评价的过程% T& {4 X: g9 A  [! M5 W  o6 m
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
1 e* V; h9 D& N8 L3 hset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
4 \$ F' \' Z, t1 tset trade-record-current lput(timer) trade-record-current
4 E2 P. r3 o- E1 P2 E& G8 ];;
评价时间5 }) O9 B9 Z; x( U! f; i
ask myself [
5 ~" ]! y/ r; ?5 h, Y$ p9 F/ Nupdate-local-reputation
  Q! O9 N0 N* O) R, m- t* a4 Nset trade-record-current lput([local-reputation] of myself) trade-record-current( P6 a, r* c, ?# E  N
]5 ?; l5 ?0 Y5 i) Z$ b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ _& ]0 x& s5 g: ?3 S8 C$ E+ _
;;
将此次交易的记录加入到trade-record-one
4 k  y% M' ^( W9 K$ B/ @( bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ N* ^2 F0 F# t3 o: |( i- _
let note (item 2 trade-record-current )- T% a  i  z" k9 ]. c
set trade-record-current
4 R  I, p2 i0 C(replace-item 2 trade-record-current (item 3 trade-record-current))
+ g2 j0 a& S6 s" m' i* b) K
set trade-record-current
  U- |) x, c5 L+ I/ w(replace-item 3 trade-record-current note)* j* ^; v/ a& v% P3 r
! S" W- f: P) b! V
# N, U% \5 {8 _/ C& s7 X" \
ask customer [
* U" r( w5 a& T8 C2 d' e* ^9 U9 Wupdate-local-reputation( ?) }, B' K3 f5 p
set trade-record-current0 z7 A6 s4 F2 q2 U+ S
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

9 S7 \1 M7 v, z5 ~7 S- T]
! }. V2 r( y* }- y. k9 H1 E
/ D# e; ~3 B& i- n) }* x) g! }. ?$ H
* M2 e. R/ L; C- Z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" m" S, d6 s- s, F; e! G! C

7 t8 c1 X+ \' S# U6 f# |4 |set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 v5 f( Z/ k' r* B6 ];;
将此次交易的记录加入到customertrade-record-all* \1 X1 W6 J" Q: k; F2 \) _
end7 o) d  X. i* F7 k7 u* ]

0 h7 V  V1 ?0 w; F4 Mto update-local-reputation4 B& k$ f- f) ~/ J0 [
set [trade-record-one-len] of myself length [trade-record-one] of myself
! ~: a2 z4 x& ?! W, Q/ G9 O/ m8 c5 r5 H6 @- p

/ I8 \9 J3 ]* R: O;;if [trade-record-one-len] of myself > 3
4 u( y( @0 P3 R1 H! b. i
update-neighbor-total
; c. ^) M; R) N2 K2 S;;
更新邻居节点的数目,在此进行
3 l% E  K3 x; l" S' R4 |, I( }5 ~0 ulet i 3( V2 _0 P# l. @
let sum-time 0" e' i2 m. K9 l- G
while[i < [trade-record-one-len] of myself]
6 u: r; m3 Y7 Z% j2 @( A[! B1 @2 q6 s- K# M. }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* D1 ^# A7 n$ \. @& d2 K* j
set i$ k6 D4 C3 s# m, u1 _
( i + 1)
, i* q( g) h/ \4 v. Q6 W
]
: _# A1 F8 Z2 o6 u8 a# rlet j 3
5 k0 d2 r" m) \0 t5 {8 W' dlet sum-money 0& y: w1 D% W; p( F
while[j < [trade-record-one-len] of myself]
2 R9 i, g* e" @# p[
2 H  @  z" ]5 {& }  _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)
4 G: Q# D' t- C( |set j
$ y% C( ]7 H/ m) m! y% u7 K& c% G( j + 1)

2 n1 z: d. z6 A$ l3 y: `: W* d& w]
6 f: G+ w5 G& Y) Q9 h- n0 l! Blet k 3
6 \2 v( z1 P: g0 p7 `8 }let power 00 B# a1 d& P+ i/ m7 j% H* W
let local 0* Y7 }  O% w5 ^5 T$ A  e: ^) s
while [k <[trade-record-one-len] of myself]
/ s7 G; P9 b9 V. Y, d[
& Q$ k# S5 H0 Q# V6 ]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)
/ S5 ?$ c9 e% d- Gset k (k + 1)2 [2 @3 }9 X6 A) q* T( I( v1 J
]: W) }4 G  e! Y6 W% e
set [local-reputation] of myself (local)
/ n, f# ^5 y7 c& R0 v: |end7 Z  C) j# X: l, \2 G
# [2 D8 O1 Y2 _! O# z
to update-neighbor-total5 t/ f# W  M# a9 u+ Q

9 _  W$ y% H+ L. M$ ^1 aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 W& Z4 `8 F2 J6 X/ Z  J  }. B( v* O* H( q

, Q2 [3 {' U. uend
% E) r% g  U1 u1 x7 s# X& [" s- J! q1 Y5 F- I: E. P6 v4 ]. d
to update-credibility-ijl 8 _  r( {$ f6 c, c9 @# |" m
. z  X% h- F9 K2 Y- @" h3 A
;;
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  Y4 H+ u. [6 |+ {) s6 Z
let l 0
: F/ T' u- V+ M5 I4 ^while[ l < people ]
2 ^- x' F, i. H* D- x; M+ y0 ]* n2 R;;
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
9 b! W  q2 H) r7 r* f. M0 \[, L5 Z/ s# Y, S) ]& y8 |
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. r' P/ L* V' p' p# aif (trade-record-one-j-l-len > 3). O6 a3 l: f3 P7 y0 J, Z
[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
1 G2 d( W6 J2 D! _; q7 U$ Q/ D) z5 x$ ulet i 3- b1 x' y7 t2 v) Z
let sum-time 0
6 k" k1 ?0 |* ~  e: U0 ~while[i < trade-record-one-len]# c2 ~* c* e5 o# ~) H2 A* Y! s# l
[
5 }0 M9 ]/ F+ n2 {  ?; W6 E1 Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 W, \  w- Z5 p3 Oset i! G% X6 j0 m$ _$ S1 p
( i + 1)
! |! J+ F, C1 J6 z
]
( p' x2 f5 Q, o1 s. q* F. U, Jlet credibility-i-j-l 0
8 v) M& z3 D5 o# N* m1 z5 c;;i
评价(jjl的评价)( o, m$ w# t. T8 J; [7 E1 }
let j 3
) N2 u4 T0 z% q- f5 r5 N4 [2 W7 ^let k 4
; A# F) ^5 q& K/ l5 Owhile[j < trade-record-one-len]
6 U' w1 F: Z( S- e( ?' r5 u2 O[
( [! s# n$ F8 A6 w5 Vwhile [((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4 e- s% @3 ?6 J' Z. B# \
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)
& y9 D4 R: r7 Y% nset j
- m% K, {6 }8 i( j + 1)

  J- s, b: n/ S2 m3 }1 x7 ~4 r]
- P9 E) U9 i" ^& q" q* r  vset [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 ))& `, I; L2 x) J: y+ b9 e( V
( V* d* H0 C$ N3 @$ p: r& a
4 R" k) @; n" u
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, ?& ^, q1 }  l! M;;
及时更新il的评价质量的评价
5 E6 F9 M0 n1 _5 vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 ~7 n- B3 o6 ]- e- J; q. Oset l (l + 1)5 g4 w4 |* ^7 }
]) z; N6 x* j: x) k; S, s
end( Y: d  U8 [; O3 E' N. O7 u) z
! W1 p1 a. A, I, c* C) U6 ~" y; E
to update-credibility-list( I) E2 o$ [5 O& E
let i 0
- ^' k+ Y$ \/ t$ G4 n7 ]+ nwhile[i < people]# H) D# L) a7 d, K; I+ c3 |
[
0 `  I3 m6 n. b+ H9 `+ Zlet j 0# f- @- q8 R+ ^4 E1 Q
let note 00 r3 m0 ^/ B4 x) j2 C
let k 01 j" M3 k5 L& h0 G( e4 ^
;;
计作出过评价的邻居节点的数目8 `+ ?* F2 m% w% |
while[j < people]# m; ^3 m! h" K! {* f
[
7 i; g1 _# @2 N( [' k: H; B' ?' w" q5 g3 cif (item j( [credibility] of turtle (i + 1)) != -1). G0 i! X( a0 \5 [0 ?, E0 A
;;
判断是否给本turtle的评价质量做出过评价的节点
( m% y; S/ E# o: m6 F6 _3 {3 i[set note (note + item j ([credibility]of turtle (i + 1)))2 L. f. [' j: H, H  p, p5 m& k
;;*(exp (-(people - 2)))/(people - 2))]
- P( J6 B( N& ^9 t9 m
set k (k + 1)
- r, H$ s) N/ _]5 z4 b  l( B. T3 [
set j (j + 1). |8 M4 O/ y/ a/ w( f4 Z' i9 J
]
3 w$ N8 x/ w* T, Y! w  @3 m8 Rset note (note *(exp (- (1 / k)))/ k)  o8 b5 T% B2 `0 S) |6 e4 o  A
set credibility-list (replace-item i credibility-list note), A2 D, U& A/ m: S8 A
set i (i + 1)9 Z2 U4 t9 ?7 o8 A
]4 C# [% r: B# Z8 l9 z  N& W4 K5 T$ h
end; D1 t" K" Z4 c2 t) M) F

- G$ f, `' T; y7 H: i' ?( P$ F7 lto update-global-reputation-list  P/ m2 @" ~) a" {* V
let j 0
% V+ h6 i( t& l' {while[j < people]) E3 z1 G" h8 V7 S3 h
[
( y2 C5 \( F- Z1 I2 L1 a% |) Blet new 0$ v/ U( V4 j5 Q7 _. @9 R! G6 H" B1 C
;;
暂存新的一个全局声誉
( O* h8 a! T; ^* P+ G5 N5 ]let i 0
$ x% X1 @' Z0 T; ~  Flet sum-money 0( P. [) j* z) D3 N+ @* f
let credibility-money 0
' c* D' D1 r8 p! A9 u1 K. R/ _while [i < people]
# K+ y6 Y9 n0 ^5 e9 b[% z3 J  T! }2 h2 `- x; ~& B+ l
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: v, v7 Q) F( T: i( Dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* X; A$ m1 J  J, x/ o
set i (i + 1)
7 N7 t8 _" D8 B0 q* Y7 i4 O2 U]
7 y- Z3 M3 o& f0 \3 rlet k 0. m. ~( k, K: R5 J3 S& U- W
let new1 0+ r6 |) u* N) N
while [k < people]2 l3 N$ b. J; W  r$ k2 u% P. P
[+ B! F$ N; D+ E
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)4 l! k! \! Q$ ^* H1 r
set k (k + 1)
  r( S0 @, h, `8 |8 `$ O]
1 t# `. g+ c( h, }/ d) }1 \+ J# Bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( X2 n5 \+ S; j" ~
set global-reputation-list (replace-item j global-reputation-list new)
) i6 q* s3 j$ q. f7 I( ~$ bset j (j + 1)$ q4 Q1 Q0 F9 L: [! `5 Q: A0 j: @
]
7 j+ c+ B5 a9 k/ Y! Q0 U9 d: Gend
9 D- M5 ^! k8 C7 ~# y1 c( T" X. ~: \3 S( i/ D4 Z% L+ D$ n
3 {5 o8 [  i$ o- x' \, G+ E

& w* o: Q: X. Z8 y- c( }8 fto get-color% U+ m, q) A6 r: Q" v: W$ ~( w( Y, |

+ P. |& L$ A6 \$ a" M6 Iset color blue
: Q2 p! I% X, l: h! M: k
end3 ^' \' [2 q* d, R/ _0 i
. W1 b% ?" `7 |8 Z/ j
to poll-class
/ ?" W6 H" e/ l( L9 J+ a; D" k3 Q' qend+ M& m9 Y4 l5 ~4 x) H1 B0 _
/ O$ e8 t6 r2 H" P% D& m9 `
to setup-plot19 C2 L/ u8 _6 z
6 J8 q) C7 m# u  u4 S& c
set-current-plot "Trends-of-Local-reputation"

7 C, m3 k; J  O7 p$ @& b
/ Z1 [/ Q% E9 u+ Q5 v: w: P0 jset-plot-x-range 0 xmax
" u) z$ h' O6 m
- Y) }) }) r0 ]: h8 R
set-plot-y-range 0.0 ymax
* o7 _1 q0 Z' N  B4 E- i  i
end' O0 [$ c% m" Q2 w

- h  H. U( U- h4 w1 Oto setup-plot2
5 r' I# z4 G5 E8 a2 w3 Y  |) w* k! T' e1 z
set-current-plot "Trends-of-global-reputation"
0 l+ P3 M3 p+ P& a; p0 ^
4 s6 H) D: Y3 r2 l) Q, ^$ R
set-plot-x-range 0 xmax
0 T& ^3 [4 Z7 g6 y7 M% Z4 G5 s/ n

+ W. f. k% ]) K( Xset-plot-y-range 0.0 ymax

# M( w1 n" b$ D, Gend
# F$ m2 n  {) v# [4 J/ e$ T# c- m$ Q% ]8 D! g. J
to setup-plot3; ]: f8 N  E- N8 S

( }. `. s  T, \% {! Fset-current-plot "Trends-of-credibility"
+ M* T, Q6 O, L( ~3 c7 j+ j" e

$ n4 ]; R7 X6 g. H: N  n. o) Gset-plot-x-range 0 xmax

' ~& B6 `; x2 T( e1 x
* @1 N3 F3 _' }9 o* a' T+ Vset-plot-y-range 0.0 ymax

' ?6 E4 p5 \) q+ F7 `" z( t: @3 yend; |% ^& k' @; c

5 q: ~9 Y; P; S7 D) A3 Y  }2 q3 j( Rto do-plots  d. ^$ Z# q% J0 l
set-current-plot "Trends-of-Local-reputation"2 `2 Y& X1 c" E. r
set-current-plot-pen "Honest service"3 ^' o2 Q$ V3 J0 G7 a2 K- B
end  G$ W9 y. p3 T! L/ p. V+ |

0 U* n+ F! U& P. p5 X[ 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.8 N; Y7 Z7 g5 b& n
+ ?5 h/ d/ n5 _% 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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