设为首页收藏本站

最大的系统仿真与系统优化公益交流社区

 找回密码
 注册

QQ登录

只需一步,快速开始

查看: 15118|回复: 10

[交流] 关于turtle的使用问题

  [复制链接]
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:
+ }& I9 c! C! w& Ito do-business
5 T6 x( D; @2 e rt random 360! R$ W9 S1 B5 p  Q3 x; G* T9 b% }7 p% I
fd 1; w9 I, ]" ~8 c$ p
ifelse(other turtles-here != nobody)[1 f  f9 i0 h5 a1 q8 T) v
   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 ^/ r: x. h6 b7 k4 E5 @8 A/ ~   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
  G8 p2 f! V4 I0 L" [- ~) T   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer6 X0 y# k" S* {# G
   set [trade-record-one-len] of self length [trade-record-one] of self
7 l. x% n* |( w: }0 g, E# _3 q$ w   set trade-record-current( list (timer) (random money-upper-limit))$ w. ^/ G7 N7 j

' G2 Z0 O+ z- I* C问题的提示如下:
$ _8 b) Q" a0 n% n
' m6 i4 d' a" Xerror while turtle 50 running OF in procedure DO-BUSINESS! z1 ?- u" p$ L
  called by procedure GO
+ U; g0 L( P! ^. {OF expected input to be a turtle agentset or turtle but got NOBODY instead.
1 e' v0 G, j2 B/ q3 N& o) @$ h
(halted running of go)/ h- `6 k- {  R6 j' ^1 B

$ J8 I$ p8 J% T4 V9 c; g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~~
8 T+ H/ `* b. i& L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.

本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有帐号?注册

x

评分

参与人数 1仿真币 +30 +2 收起 理由
booblu + 30 + 2

查看全部评分

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. I7 r; N0 M( b3 `
globals[
6 ?" r9 w* \* W" txmax( O; \# P) c7 D
ymax6 o' \; h6 C* a, [
global-reputation-list0 m2 L* N# _7 d4 }/ k$ l# {7 O

: A/ O/ h# x$ i;;
每一个turtle的全局声誉都存在此LIST3 F) h* X+ }7 Y: G" {+ f& X
credibility-list
4 D) M# @  q% a' x. T;;
每一个turtle的评价可信度
: Y" Z8 y' n7 L* A% `1 s2 Fhonest-service
! T9 ]6 E" |0 c% y( hunhonest-service
3 p& ?& z5 r  f7 i- f6 Goscillation
9 r1 a8 P) H! Z2 ^" \& Yrand-dynamic
( Q7 N: y& K+ v6 }]
+ ^+ K- i; n* m- l7 k5 k1 O/ `1 J0 `& r6 a  k: _. \
turtles-own[' Y: |0 N1 Y- _. e. |: I( D
trade-record-all1 h+ O8 ?! t* c# {2 S; e% L
;;a list of lists,
trade-record-one组成7 T1 Y; W: O+ ~1 B; F4 b* Y& S
trade-record-one9 _4 V. H% K/ a* S7 K) I% I% Q
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
2 U! N, g) n: x, s3 C, P. x/ B+ R8 D6 M/ {# \; O& K' C
;;[
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]]; N) C$ O2 b1 y7 E1 d# `  g, Y
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]% G! o, z' J% t& p
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list6 J- q! V9 X6 V8 B
neighbor-total
. N; V" H( h9 I0 d;;
记录该turtle的邻居节点的数目
  D' g4 m2 Z% X& Qtrade-time$ x2 X. L5 G1 D- {5 p) l
;;
当前发生交易的turtle的交易时间4 _) p7 {/ r- t3 I1 p% [5 R
appraise-give
) P+ Z4 R1 e7 z* ^: k;;
当前发生交易时给出的评价" \" D( \( B  r% [7 g
appraise-receive! }/ ]9 a1 L& v5 }; ~  P& J, }
;;
当前发生交易时收到的评价
" L2 _4 K+ ~4 Z  g* r  Happraise-time
8 G* z! P# n. H+ w;;
当前发生交易时的评价时间* ^* c+ ^# |& `/ S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( Q4 r. ^* z. E- _8 T% `& I
trade-times-total
  q( s0 }8 l# T! v7 P* g8 T;;
与当前turtle的交易总次数, Y6 Q! h. U" [
trade-money-total/ C- s1 ?9 m* k; `5 v2 B
;;
与当前turtle的交易总金额& n. j" s5 r. ?# ^6 F# I/ p
local-reputation( {% Y$ g2 [( R2 g2 h
global-reputation
8 z5 f$ P! d7 Fcredibility6 ~9 U& g* [1 x/ \! D0 o* U3 C- N4 ~
;;
评价可信度,每次交易后都需要更新. U7 l" {. I2 k$ f" j( V
credibility-all
8 O( E: y5 _$ l0 p5 }- M4 |;;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
9 ]  i) S5 I2 _# j/ G
3 y# ~% T; F' L+ 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
$ v0 v  U1 i! T* J; Wcredibility-one. U# v3 X- W3 x6 L* [; l
;;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
  |+ c3 j  {% [! e! W( j# \5 Y" ~global-proportion
# D/ m' ^$ }. p* jcustomer4 Y* y% P8 h+ b5 o* A) W! h
customer-no9 ^  h9 q5 Z# z
trust-ok
6 C+ t4 G8 X: \, F: z& Z# \8 Ztrade-record-one-len;;trade-record-one的长度
1 p6 ?9 X$ `! b, B; G]6 v: D8 z$ |  L" j! m

$ s' f4 i1 \2 _! g: E/ W6 J- u/ v;;setup procedure
$ M3 j  z6 B* B3 [! A; h3 x' D' g5 p% z
to setup+ s% T. O! `: H" q# J2 }
$ O1 d0 V6 ?$ q
ca
2 O( v  F4 y) U6 C$ u; F* s

7 m5 c7 W' Z& I+ W( u0 F2 I4 Dinitialize-settings

% m; \& D; V! O. M% C
, J3 E/ }8 ]; ?4 Zcrt people [setup-turtles]

+ p9 E+ O/ {# a, P  U- S$ Q- `$ T
reset-timer

6 m2 f# t1 [5 `# y; A! Q
' l5 Z2 C& l% E1 _6 X* S' rpoll-class
+ W7 u7 O& p" s$ D( @" w. X% S

4 M" p* ~9 t8 E, r* |setup-plots
* J6 P3 f; [6 N' A  p) G

+ Z# h( q6 W. W5 I7 Qdo-plots
6 a, M7 ~: W1 V4 m$ D) M
end
! j% ~: f' F* b% V  f( e* M4 T& Q: L% r! {
to initialize-settings
) }2 o/ _: \( ]5 \
4 }5 y% N7 L. G# r) d2 Z$ S! X& oset global-reputation-list []
0 l" k* `& D( V+ z8 b  G% i

9 x. m4 K: H! @* N2 {/ Tset credibility-list n-values people [0.5]

( M1 T! x3 ^8 w  v2 {9 e1 f+ h; ~
set honest-service 0
) q. I5 G+ W9 d. p( I% I) q% b8 |

3 ]6 y! ]! M# F0 N5 h9 {# e: yset unhonest-service 0

2 u4 k: k! u9 s0 N
2 S9 k1 `" ^* [. k) H5 `set oscillation 0

, `! H  h. K! _! B  I8 h4 y; p9 Y' |; L$ W6 U8 \1 p
set rand-dynamic 0

; S! ^9 G9 L. Y' G( ]end' W& ~2 ~8 h% j8 i

, P8 n' Q# q. a( t) Gto setup-turtles " y/ K) ~# k( @1 o1 d+ n
set shape "person"* V6 b' T* X# j2 T
setxy random-xcor random-ycor9 `2 w* c- w( c7 E( k
set trade-record-one []/ A( T4 f, g% L0 J3 X$ i3 G3 o1 S

1 {( D( `: s! v6 ]. uset trade-record-all n-values people [(list (? + 1) 0 0)] 6 G8 N; F+ @4 ~; t6 y: L
# ?% X0 r3 }. ]4 `" c4 a! _
set trade-record-current []
* K  s& w6 `) S0 V" e: g( Lset credibility-receive []  N* |8 N5 F0 t; ?- a  m! y
set local-reputation 0.5
* Y, c' n5 d) v7 S! hset neighbor-total 04 E8 |- R$ v/ U( ^5 A% @$ W$ ^# u
set trade-times-total 0# V8 r( _' ?; d8 m9 z
set trade-money-total 06 F( L  P4 C; Y& L
set customer nobody! p5 B2 ?' B8 K8 L$ X
set credibility-all n-values people [creat-credibility]7 J2 W! W* X! S( R7 v- {
set credibility n-values people [-1]! S" d4 p8 C/ J
get-color
0 \+ t" ~8 q2 q0 d" I
5 w7 k! R# N. q4 `" D' _  y( N, v
end
2 s( j6 }  e9 w! n  F/ o
5 {. r: B+ _! [& N6 n) T) Lto-report creat-credibility/ s" s+ V/ \7 t* R+ U0 c, ^$ n
report n-values people [0.5]
0 F' _( ~1 `( ?4 @( ~5 B: ?end
% F; s, {: |8 n8 X7 f# m' C7 N& o% s( |" U+ s( t( M
to setup-plots. B- _  l" ^8 r9 s

: A% g/ ]" j6 vset xmax 30

! D7 J2 r$ p) }$ T/ }- E2 i. `
8 m+ W$ _5 O( j' C5 tset ymax 1.0

1 G  @. ~# J: U- m1 t" q4 p5 A& i) T* i3 R; W9 H
clear-all-plots
4 k) C& w: y3 M9 z$ O$ E0 [0 H

7 i# R+ F) x" B# v; l+ \- a* l5 G7 esetup-plot1

# }7 s; J/ u/ s! @* W" V, K; G$ ?
setup-plot2
; g# S" u$ R+ n- @4 T9 V) E
/ N0 H4 E' q4 L9 d" ?: _( D0 z
setup-plot3

3 M+ T, Y) e/ r, o" y: h. jend
8 H( K! i0 |) n8 V2 o" K
) m0 ?* i1 l; Z- ^;;run time procedures
" r! S& B+ r: }' @3 N- B. M' o
7 b$ o: E7 G# @! w* W/ dto go# U% D9 Z+ V1 A  s

2 b0 E9 @4 N( B+ o# o4 `ask turtles [do-business]

5 \4 @; F  n3 c" Cend
9 [8 W: G/ c- C4 l. {3 N* h
7 B+ l  q" |/ W4 Y! jto do-business
: v+ w. |- p( A* P9 Y( ?$ C

6 W/ E1 b9 x% L$ d8 T% e& \( R# L0 Z, P1 c$ e
rt random 360
) s! D  X$ ]2 B4 A% W

" M( ]/ j( W0 q4 C2 t2 e$ _fd 1

/ H3 s; ^# l% H2 a, U
/ N$ N: k) a' g: x1 kifelse(other turtles-here != nobody)[
4 }6 B+ M- N# K& M& p) c

- P. S  P$ o2 R- ?' D, |set customer one-of other turtles-here

/ E7 Y: d& P  N. U
1 n) k2 ~7 a9 j. [0 [- {;; set [customer] of customer myself

& d6 J8 y# ~+ X3 l: V! K  _$ S4 a9 `$ H. d$ B
set [trade-record-one] of self item (([who] of customer) - 1); y0 J7 ~- `+ z" e
[trade-record-all]of self
. @& ^! [, V. x+ v3 G;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

9 j) c6 E' O  j: k; I( C8 U. _9 ~2 Z5 {$ B8 h
set [trade-record-one] of customer item (([who] of self) - 1)+ Q# c! L9 e- e' R
[trade-record-all]of customer
; m% Z- X, U- c+ c2 _

8 }7 V5 }0 `5 @3 I' [) zset [trade-record-one-len] of self length [trade-record-one] of self
( L( F$ _( L1 p9 U- m
/ g. K/ ~& u2 v, f+ x
set trade-record-current( list (timer) (random money-upper-limit))

$ u$ l4 N& C$ }# P& c  H: l, M1 X' c: r
ask self [do-trust]
" M+ O5 p0 }' y: Y% V;;
先求ij的信任度
/ l$ D6 R0 x2 C2 Y$ S$ H+ D# X5 L
if ([trust-ok] of self)
! P9 q, B, V  q+ ^0 V" L;;
根据ij的信任度来决定是否与j进行交易[! p5 H+ L5 b: `
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself. A4 g8 r  x3 B$ k7 {: l
5 l/ l4 z4 L* H" |7 w
[

1 p8 q% X( Z3 y9 v% Z6 }- F- ]$ |' [+ [5 m
do-trade

6 Y( A7 @& V& z' j: O; a) S8 Z3 Y; n* k
update-credibility-ijl

/ I! B1 @9 E8 v% y, w2 Q, Q0 I# y4 M% @! j4 e4 s4 l- p7 s
update-credibility-list! ~4 L" p% H3 k9 Y( C1 x
5 b$ ]$ B, {0 p2 l" g- o2 |1 A
4 h7 ~! s5 [* M% l6 d% q
update-global-reputation-list
; ^. e4 B7 B1 u/ V0 b! y  d
4 g3 M5 ^: D/ j; U  h
poll-class
$ z! z5 U$ q# V3 ^8 L8 v
3 n6 q& W. z7 \- g
get-color

' B; }* l" ?0 m* _4 Y/ z" H, }. B
4 J: d- p% s2 \]]
5 p' y5 H- P0 d1 e+ ], O# ]4 v
$ @- K2 J$ m$ I+ b4 a7 f;;
如果所得的信任度满足条件,则进行交易& n8 y8 d0 @9 u5 F5 o" h2 V' d1 E
0 u6 R7 Y9 t8 B6 I. x; C
[
) B! Z7 I0 b( @" s2 G6 K

1 K4 P0 u1 Y( w) y6 ^7 vrt random 360

$ ]$ @1 a5 ]7 O  C4 y
5 v) k# N3 v1 ~7 S- g, B4 efd 1

) N2 w, }! p& z% W3 U  l( n- W+ Q- R$ s: a7 A
]

/ N9 f2 P2 o, j2 d& |0 L
8 x' P: w3 }3 k, Q2 h0 P2 oend

- w- T8 H' i8 g$ u5 o1 _; Z7 T5 E5 U5 g& i* `1 X% Q
to do-trust $ @% f+ }8 w- E1 I5 H8 T
set trust-ok False0 B; T' v2 A# H  _
0 t) V9 G, D. n" N7 S( {
2 k. g/ G/ L# e9 d# Q
let max-trade-times 0
4 f0 _4 u* d8 C! Q  S7 @* Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- t* @8 E7 N/ F; C' G0 T; I
let max-trade-money 0
( x% m; P5 e6 m- D$ n$ Q  fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 _) X2 G/ }5 q1 f. i: C" n  S7 _; I
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 i" T* j, h, _$ ]( {

9 t. a# b8 v6 d. g1 o/ x" O

7 o+ [# Q) D3 T6 }* eget-global-proportion2 \& D6 b: i5 _- P. ~# G. \3 z
let trust-value4 K: ~. y- {5 e! ~, h
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)
/ i# w7 q' d1 A5 ~& y5 X- \
if(trust-value > trade-trust-value)
- V' @1 y* |' M0 \5 L[set trust-ok true]
" q4 x, e- c& L& E  `$ O$ Mend; U0 z! U* M9 Y- S" h

4 v$ N, ~8 {( F* L, D7 P! Yto get-global-proportion( Z! Y  d6 A* q
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% D4 E9 j' H3 m8 [. T( Y  A/ R0 H
[set global-proportion 0]% r9 g% m  q4 N+ _! R) x; j" s
[let i 0
3 B1 L1 P5 G6 r: ?- \# X/ |7 o4 qlet sum-money 0! f. M* Z0 N; I" H
while[ i < people]
$ m8 \! Q- x7 U- y- V& `[) d* l/ e0 W( a2 O) |2 S5 E5 R
if( length (item i
! h/ S3 p" ^( G8 z( Z6 Z1 F' K0 m[trade-record-all] of customer) > 3 )

5 G. R4 T; k$ S/ O, y3 {[" |: w1 Y5 t3 P" j0 y# s5 n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 V: @/ E, Q5 N) F5 h]0 s1 Z$ k! E. H9 x4 }& s) m
]
4 K+ p. z5 w! ~5 K, @8 X; rlet j 0; d: G) Z* v' ]! n$ u: G
let note 0+ Y) q0 m9 X% M5 x3 X
while[ j < people]
: B5 m3 C/ H  b! |[
( n5 H) h  Y/ w+ U# wif( length (item i
5 W7 ?! c: p+ d% u0 C% @[trade-record-all] of customer) > 3 )
0 ?1 ]* z) C6 C4 |4 J- ]/ b$ {
[
% Y; r& I& E( N* ?* ]# \, U' T9 cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 Q0 T5 j+ d2 |  D8 f: H+ ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( a- D" i4 j: v[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 f( D$ x# v  Y/ j% X
]
1 [  R. u6 a6 ]2 H' r3 o/ K  B]
; `' ]: q1 j% l% Sset global-proportion note
0 H4 a/ v9 Z- \]
4 m9 E5 b: n% g" e- W' Jend3 P' r9 H% L( E! I$ C( ?
* C! A: G2 _; @! Z. K
to do-trade4 P3 Z. F/ C# z$ E# S3 j( I6 A2 [8 e2 k
;;
这个过程实际上是给双方作出评价的过程/ d! J5 @, ?8 d: v3 ?8 v% H6 [
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
# p) x" O3 @- v# z- V8 Uset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价6 [8 r5 D! M. w
set trade-record-current lput(timer) trade-record-current
- K- m7 p! i& I" U  |7 J, l;;
评价时间
. w; s: R. ~# j" Sask myself [- I8 C) v! Z+ M0 W( Z9 X5 |, K9 b
update-local-reputation
. I& q! w* G7 g+ R2 ]set trade-record-current lput([local-reputation] of myself) trade-record-current
# a! I4 d2 E7 x. G- d+ K]( y$ Q0 W: j* ]+ q* w9 z" N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; f& l, x4 n5 F' a# U
;;
将此次交易的记录加入到trade-record-one
( u+ U+ T5 u" J! F) Z4 zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 d* z( m8 ]6 u2 Q1 I; q" \2 f! P
let note (item 2 trade-record-current )0 `% v0 t* U5 a2 i: w
set trade-record-current% b  Z! c" q7 v- m0 k- a- k
(replace-item 2 trade-record-current (item 3 trade-record-current))
3 _8 M4 h( `* z, G8 \
set trade-record-current- b2 C! {- v& }7 {& F# b$ |
(replace-item 3 trade-record-current note)  |$ s( [/ c- w# A5 X
+ V+ C" h4 o' F# |
: o1 |; }" w% z% h" _7 e
ask customer [: P, L! q4 _; ]/ h) p6 S/ n
update-local-reputation+ T& i# r+ p  V) S( G$ i
set trade-record-current9 n; G8 c  b8 \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 _  r, ]7 f& u2 U# B. r! r( C0 \
]
% q3 K  e) y7 B! J# u2 ~8 P. z2 R. [# r
+ f# l0 s0 C% }9 R; `) W( y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 @: s# D4 X9 z; J+ r

) R" T4 S& j# [- d2 ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): |/ Q/ U* R' q
;;
将此次交易的记录加入到customertrade-record-all
8 z9 Q# t+ @- e5 }# Y0 Kend% t+ P4 y& N# x5 P( ^. r* M  b
  M/ T8 `) u6 S$ z6 ^5 Y, U) i
to update-local-reputation0 V1 D% F9 u& p/ ]  b% n& G- x
set [trade-record-one-len] of myself length [trade-record-one] of myself* Y3 E" z3 V6 c9 [

$ H1 B) k% H9 g; b+ g$ J- b) a  [
;;if [trade-record-one-len] of myself > 3
. O) i5 n# c, [( }2 T3 O
update-neighbor-total
( e! i4 B0 F8 d+ y4 ]2 E;;
更新邻居节点的数目,在此进行
- y  c0 d, a4 K5 x/ n8 O) e) y9 Glet i 3
( Q/ Q/ G3 h+ Wlet sum-time 0
: n; c# U, G$ D: h: S1 I# L% vwhile[i < [trade-record-one-len] of myself]+ y0 y0 G3 [  B% t' c* C$ O4 e
[5 Q5 p) H2 {( c9 Q$ @; Y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 b+ p/ h* K- W' Y  g8 N
set i
, j3 T8 @  U2 T; p5 g7 m( i + 1)

8 _* k; G) O, q, d6 Z! _]
3 o2 H( V+ r7 d% ~let j 3( O3 F9 E6 J$ k8 q5 b3 I
let sum-money 02 m' }  `% E  E% p0 c7 E
while[j < [trade-record-one-len] of myself]
7 t0 L; @" {, w+ E5 T$ ^7 h[5 b% ?2 g8 O4 |5 P1 [
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)
3 }7 Q9 S( h  `' p+ Pset j
7 X8 R4 {  C, M3 m8 X4 f1 Z$ L/ g, s+ h( j + 1)
' N7 Q5 g2 u  _+ B- L
]
. k: j: o/ I  K# i" D$ @( X+ _let k 3# D/ S, Q) ]3 n. ^6 i
let power 0( b- N* U" M) [2 Q
let local 0
' t9 ?$ Y! ^) `! n# N! Wwhile [k <[trade-record-one-len] of myself]
$ A; D! n' y) a6 K1 S" }, h0 k4 D' x[7 i1 P* e, L% ]& a. n
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)
. f/ Y1 o4 E0 I  E* M2 yset k (k + 1)
0 `9 D3 F' N. ?2 Z]
; r' x; Q6 _& S2 d* }* ]! ]1 m/ f& n4 Vset [local-reputation] of myself (local)
* q" R0 q) E9 W& |8 Oend$ e; @7 R$ q8 E/ e  d
/ W, V" h2 V- Q
to update-neighbor-total1 M+ r0 {0 _0 t/ J

% o/ F5 x; Q5 n) G& Wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! J2 }. T! {& _$ c0 V8 y
: H! P8 d/ C& o6 ]

0 S' v: l5 B( o7 h( G' t* X' @end  T" L7 R! h7 Q, U# O9 j8 J
8 u# G5 x. o8 g: g
to update-credibility-ijl
8 `( w0 C; l" ~& @  }) E+ r$ [" W/ Y. H1 @3 d. q# \8 o
;;
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。% v; O* m5 b% w7 y
let l 03 k9 p; B: S0 j- S! }+ @, S
while[ l < people ]& a  |7 G1 m6 s& f+ a6 U
;;
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+ x; B* s* ~3 U: @2 S/ L+ [  |6 c
[
+ V+ Z+ a, T0 l+ C$ Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 u8 R& L3 v# f$ C; W% f# |  vif (trade-record-one-j-l-len > 3)
- s4 S4 f+ u/ Y) J9 U' T; p/ m[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; p" B) X  Z1 g) W
let i 3
! C7 M. G5 l; p( J: m9 M& c3 Nlet sum-time 0
; X4 ?# B6 l/ X' D3 |while[i < trade-record-one-len]/ X4 P/ l7 v' ~8 h
[
; q5 m8 o0 K. y: rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; ]* n) ^( L- {% e5 {set i9 Q  j0 l, a0 n/ k& M
( i + 1)
* J/ w, V# t+ W% ?& P  o) R
]& Q; u5 r* ^: n: C$ l3 F6 i: k
let credibility-i-j-l 0
: w5 W7 e+ b) B5 ~) F) H;;i
评价(jjl的评价): W, P( h0 X; |: o+ r% j4 Z
let j 3$ J1 w! d3 z+ R0 g- p6 J- ]
let k 47 h# ]3 s! u' P+ s8 r4 F
while[j < trade-record-one-len]% v0 X* J8 e" k# V
[
5 r9 T  |4 D4 W2 wwhile [((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/ c' @, B9 b& H" T! c" P
set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)& M/ H/ u) b( P" D4 f  ^+ s) A/ v
set j
7 }; a5 R! N$ d- z. x* ~( j + 1)
( A4 @3 C, Q( Y% M6 G
]5 F" x  F+ D+ q3 ~* P6 p
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 ))
6 J1 y" W% n6 V6 t* {3 H* s) t8 K+ c8 y; v8 \
+ G) Y# O) o0 k0 K( r- _: x
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); E" E. V5 F' ]# b7 r! I
;;
及时更新il的评价质量的评价
* u" b! y. S' Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: r% I/ N) x5 |0 t  j! R  bset l (l + 1)
7 T+ `+ k7 _0 T) E- N/ n]
5 B- [. J" c4 F, U- dend3 ~8 y- w. j+ H0 S" S/ M

! N8 M$ |/ j9 D5 Ato update-credibility-list* h  q, N0 i1 L" i  B
let i 0
  k8 g3 e* x9 |# m5 |' wwhile[i < people]
0 W+ J" u: Y) k  v. G2 t[. [. m8 m0 d. v  W0 ?& V& S
let j 0
3 p) j) q( v  ?, @let note 0
+ M$ K  H+ b. X- e0 z* slet k 0( v) q+ b# C! S3 x- x
;;
计作出过评价的邻居节点的数目3 ~2 T5 k* `! e" i* g
while[j < people]$ B5 m1 H/ ?% r9 s2 M7 b$ c, f
[
, V& c1 R0 z6 a1 n% T$ j5 sif (item j( [credibility] of turtle (i + 1)) != -1)
" n* M4 _5 n0 M;;
判断是否给本turtle的评价质量做出过评价的节点7 I( x" \1 a- D/ K; b" Z* y
[set note (note + item j ([credibility]of turtle (i + 1)))# v8 h1 T0 g: _. e1 I2 l5 O! T
;;*(exp (-(people - 2)))/(people - 2))]

# o3 u# {% F$ B: o% lset k (k + 1)
- D2 j7 Q" N& j- n! W4 R# n]
) R$ y5 p4 \6 n( Oset j (j + 1)
: U6 b9 J2 U# n* u]
% x/ A0 j5 i) ~0 V5 D4 e7 Sset note (note *(exp (- (1 / k)))/ k)
) u3 r2 {) F9 e# \set credibility-list (replace-item i credibility-list note)
) H7 R: P7 A3 B. p5 eset i (i + 1)2 Q2 B% c! {( E2 I. P- I
]
" r  w) p( ^- \9 N: Xend
* A) {+ I3 I. j/ e& K* a4 B0 M: e! n" u4 i) f) v
to update-global-reputation-list2 }0 n% |$ ?) {6 D: W* q
let j 0
6 z. V* _9 I2 k% P: gwhile[j < people]
2 @& o) f) v7 o9 X[
3 `. v& B7 X$ M9 Blet new 04 |9 v0 v1 K& M* m* {* ~
;;
暂存新的一个全局声誉( T' M7 }# [- w1 F  m( m
let i 0$ R! p) {1 w! G; o7 \4 |% [5 ]0 D
let sum-money 03 Y, G: T& G6 V" o" G- y/ E
let credibility-money 0
" D  X$ X2 _# y2 @) ~* Wwhile [i < people]
' H5 [5 \( R% u3 t[
% z+ z& U4 Q& Z) H- O% kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' E7 A& |4 Y: {' @6 [# n5 V6 I
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# _3 B4 H7 u  p0 n' q
set i (i + 1). D. U% G1 h2 d; t
]
( N9 N* N5 ~* Z; I. S- o, |let k 0
1 h4 D; K/ d1 n! x, P! C5 _+ ?let new1 0+ f0 V6 Y$ {, Y* P: L+ _% J3 _' |
while [k < people]
" e: n2 f9 b! V[, e, k3 F# q' ]* \) Y) U4 D
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)9 O4 n) {9 ^3 l) _7 V- q
set k (k + 1)
- `, {/ g$ o9 W2 C: _]! ~; M- _9 ~1 R, K6 a
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 s- f! k9 X& J: H$ \set global-reputation-list (replace-item j global-reputation-list new)1 B7 S- Z: D( h# D" p( F2 n; z* n
set j (j + 1)' B: m: q' y7 \1 l/ m
]
# y- o  x4 h$ V/ J8 Gend
- K/ a  ^' t# z+ ]8 w
- C: {* M8 p3 c  ^, t1 Q. u+ F  K& c, ~2 _. T

& W7 K5 D- Y( r' P6 Oto get-color
# B* B5 [' y$ C
# V3 u. }6 t  V: t9 eset color blue

+ k& b9 z: _! i8 o0 cend
& f" d" U! r' K* H1 [( ]# C$ c( I6 M, N, i
to poll-class
' K  q  K/ s- F: C' ?# _3 a# o5 {end
6 Z9 [+ v5 J1 z; l: M1 q4 _
! b/ c0 n1 f0 ?, b, n- F0 ato setup-plot1
2 j) ~% O" D9 |+ I: o) u8 i: t; U$ H' C% s
set-current-plot "Trends-of-Local-reputation"

" {  @- b# I2 F* i+ u( Q# Z$ i" L* E: @+ v4 s& E
set-plot-x-range 0 xmax

3 O# |; V& g; |! N; C/ g% J4 x8 ^7 s# H; q
set-plot-y-range 0.0 ymax

; P6 R& A2 P! g3 Tend* W( a9 B: x/ C8 I2 B# b

1 j' w3 B8 y8 ]# X$ M+ Xto setup-plot2( T) D' k% L/ u6 W0 Q3 `! f
. k$ Y$ J# h) w
set-current-plot "Trends-of-global-reputation"
" a6 m0 j$ w8 L' c

/ z" L2 l  ?5 Y6 pset-plot-x-range 0 xmax
, o9 x! D. O2 Y
, }3 u" h  y. f% u
set-plot-y-range 0.0 ymax
+ U" ?' Z7 F8 s+ E' u1 k3 U
end& X: @7 N! l8 ]8 {& F+ O

* K8 {0 K; c+ O) rto setup-plot3# o+ T* {8 n4 X! ^9 A+ m8 B+ {2 j) s
3 @3 B5 d  W9 L
set-current-plot "Trends-of-credibility"

- A9 ^! U! v( `& s- v& R  c1 G9 c1 d' N- [, N( Y9 m& b
set-plot-x-range 0 xmax
( U- |: [3 S. j! w
3 o2 p- i. H) Y, X- _6 l8 j# D8 A# O
set-plot-y-range 0.0 ymax
& B* S; @+ N* G4 v8 I0 ?
end
  y& s0 C+ m! W1 ]# \& F$ j% G- |, H5 z! F% [8 \, G1 }2 k
to do-plots3 o4 y3 N0 n/ `4 r5 j; q
set-current-plot "Trends-of-Local-reputation"* z& c9 a3 m" D% \
set-current-plot-pen "Honest service"
- u7 A. s- O0 Tend
  i& W" @/ D+ e6 q" J& n$ ]7 i( }# P$ Q' b4 O. ]6 K* ]
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

本帖子中包含更多资源

您需要 登录 才可以下载或查看,没有帐号?注册

x
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" N! F! Y2 f( X9 O& k& p
8 C& y& o& N5 r% w! z# L) U9 u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?
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|手机版|SimulWay 道于仿真   

GMT+8, 2026-6-2 15:55 , Processed in 0.020246 second(s), 17 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表