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: 14265|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:9 G0 w2 C8 x/ x' j
to do-business
! x/ e! V/ s$ @% a, V rt random 360& R, Z4 t, E! W4 C9 ]# G1 q  E& L
fd 1- @5 r. E+ j; V' [: B4 l
ifelse(other turtles-here != nobody)[# C; o* f3 H6 |: Y# `7 J* t
   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.
$ h' C8 V+ {6 E/ ]5 v" w   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
. X# b% k) w& D" }+ b   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer1 c0 V/ g1 e% `3 p) k& @0 U1 S
   set [trade-record-one-len] of self length [trade-record-one] of self* J+ n- U( C) z: R$ j
   set trade-record-current( list (timer) (random money-upper-limit))
: w4 b! v7 A7 V" j; d) m% {( t- }+ W. o. l) }& t
问题的提示如下:$ g) X- f2 J& ^) s+ }
2 e2 `3 i$ i# m. v  I3 I0 b5 F
error while turtle 50 running OF in procedure DO-BUSINESS
- [* r6 [" ]: P4 E/ ^" \+ b  called by procedure GO) A, q3 z. {6 b! E
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
2 e3 p) V8 U/ V8 P
(halted running of go)
3 J7 u2 T) g  `6 `' Q/ s% s. C4 p' [1 Q. Z' I4 |
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~~+ k0 b5 ~6 Q4 [! A
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( M3 I$ o* d/ c) D) f& }
globals[* A& p: _5 R. ~7 W
xmax
" q/ E2 x! k3 `6 a4 kymax$ P! V* v) D7 P$ V. J; x
global-reputation-list' n9 ~. y& S# ?$ I1 N: h1 T

2 `; M1 z( }* S2 s;;
每一个turtle的全局声誉都存在此LIST- p& n+ O8 W: j( V+ G5 U' S# n
credibility-list
6 W2 T- I5 m( G7 L;;
每一个turtle的评价可信度8 T. {( ?# Y; Y! s$ i" e
honest-service; o# g3 b8 E' p+ X8 t0 [1 w4 ?8 _
unhonest-service
4 ^2 N' p% B5 `4 woscillation
+ _6 J& y; B4 e. r* F2 y. rrand-dynamic, k5 X- t- S( q0 u" |' B& ^9 a
]
. O* u- }" v3 M! e- A
1 E6 S# i* e7 e1 e& T0 _' L: Z& D# vturtles-own[2 q% e, ?4 p8 f& B* b
trade-record-all' i2 u" V8 a6 X" o8 b
;;a list of lists,
trade-record-one组成
. |( E/ p1 S" V2 Z# qtrade-record-one& `1 O% X* K+ j+ G  e4 d) P
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录& R. B# y0 P# V; C

0 u" }8 P$ A- q7 `2 b- s" _, \6 G;;[
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]]& P& c1 v9 i6 k3 o" Z
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]. a# o3 a* Z0 \
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
2 h) C' a6 q% `* hneighbor-total
6 p2 [; U/ Z7 ];;
记录该turtle的邻居节点的数目
+ ~% J+ p/ G( q8 \& Itrade-time8 z6 g. c4 {2 Z- [2 Y/ }
;;
当前发生交易的turtle的交易时间3 ^# [# d- ^. x0 k" [/ r1 @# S
appraise-give
9 _: g* R. F& l( f5 J+ j# \& v: z;;
当前发生交易时给出的评价
2 C" [+ W) V: T, F; z3 Wappraise-receive
' P" Q. t. Y' Z- L1 g) e( q;;
当前发生交易时收到的评价
% i3 z( N# _4 D( Eappraise-time0 E! G' U% `. W5 C  Z; i
;;
当前发生交易时的评价时间
* V7 _9 G) y% t- j/ b5 u+ olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 }" |! x8 X4 d" t) Ftrade-times-total( Y/ h3 q) w( W1 T& A
;;
与当前turtle的交易总次数7 ~  t( R/ J& W: P
trade-money-total5 j3 X. I2 v- H1 q
;;
与当前turtle的交易总金额
5 F1 t# Q' \9 e' Zlocal-reputation- Y- ~" M* G5 C* R
global-reputation
* o2 L9 `4 M% a) @- g' {credibility, u* k5 b2 i) f/ m1 t* J
;;
评价可信度,每次交易后都需要更新! S  S# L# t+ \$ E6 L6 E
credibility-all2 D% M5 |+ C2 {9 J. ^9 K7 [
;;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  O: w/ U3 j2 _
$ C. Z. R% ^0 N1 J; D: q( O
;;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) s9 U* K+ C* ]2 N: c- q
credibility-one  S$ }5 Z6 K$ g2 `, I/ 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people+ J/ f" N% s" P1 Y4 \' {
global-proportion
3 i' N$ t( Q' J* @$ ^customer; P9 {( J9 Y% x" w0 m
customer-no
: Y1 y% w- Q4 N* ftrust-ok
5 }( M+ o$ a( l( Wtrade-record-one-len;;trade-record-one的长度- j; V5 U9 |: [& M# y) T* R
]4 ^7 [# v. B' e$ z3 L& m

+ |/ V* Y. k) e; _;;setup procedure
' i$ e0 X' p: D) Z, b1 J7 }0 ~( z% [' O, I
to setup
3 Y' ~: `( x* ~: @1 x
# x# x" C" C, i. tca

7 o0 h3 |. g8 R; q$ R! X, S$ [  O' ]7 Z1 I' v
initialize-settings

2 q3 V. q" D. M+ A% g' m+ c+ N7 o7 f
crt people [setup-turtles]

/ J# G& Y9 p/ r
- _/ ~; c) X% g0 N9 D) \+ J3 Dreset-timer
* l% a0 w5 @) U5 ~# _

* T" {7 @" I) v- @1 M8 Cpoll-class

. b6 I2 r9 M; ?2 m1 v+ W
+ ^' g: {, b1 Z9 C, G% Hsetup-plots

+ o  C6 S4 T" z; V# m* i% M  n- ]- C- A; v$ Y6 @/ U+ p  q
do-plots

" P3 }' L" f. fend# a( @0 n+ B: F$ d2 [+ b6 M' @
) B9 J5 p% d: k. ~! |5 k5 P% h, G% J: K, t
to initialize-settings
$ M, e5 V+ D! Q# I& _) |! P5 i2 R; I- T
set global-reputation-list []
% X+ A" D/ \$ b; p% B

; Q  \7 H% G# r" Hset credibility-list n-values people [0.5]
  Z+ \8 R" c/ W
. E( A% K2 k/ h! ]3 ^* r
set honest-service 0
1 K+ l$ z' J: p7 O+ ?. i6 O8 M

0 \  F: I+ ?# C  V& z/ Q5 zset unhonest-service 0

" V+ a, H# d3 `/ z3 V7 \2 l# a: N5 N( Y' a$ e9 G' f
set oscillation 0

/ t  R/ x1 \. w' s
& }, P& z' [* g$ j5 C) b; `* yset rand-dynamic 0

, x5 g6 L/ |, h$ p+ V2 mend, e# G+ S- O5 L
, B: ~; ^5 E5 \
to setup-turtles
0 a5 r" u. f5 a  i! e  @8 Hset shape "person"
6 J7 |; N% w+ R3 c  ~setxy random-xcor random-ycor2 ?, ?) W$ L; l' w  ]5 F4 f/ H
set trade-record-one []% T% y6 X+ e' z( x3 Y

0 E; ?% W# ^: t. h& Dset trade-record-all n-values people [(list (? + 1) 0 0)]
( P0 O; }0 P6 `) Q, ]: T! a
" J7 ^) G8 g) b1 S0 q
set trade-record-current []' J% z* o3 U( {! z) R; U+ q
set credibility-receive []
+ U3 \/ x+ D  N" ]" hset local-reputation 0.5
9 F5 X9 s$ ~0 S+ y+ f) s( Nset neighbor-total 0' M; T2 ^; O0 h7 O  N
set trade-times-total 0
/ u( X  \6 E1 w  n6 fset trade-money-total 0
! S% o* s- ]0 {. h) I4 G5 Y& N( Xset customer nobody
3 q" d5 w; ^2 q  V, I  B2 Pset credibility-all n-values people [creat-credibility]# t! j1 w7 X" p: v8 J
set credibility n-values people [-1]
/ `% b. a/ K( pget-color
3 O$ M; K* X4 U) G

9 k+ e; D+ R' Y/ lend  g& E; `( @* E  t
* p  n+ J! z1 |4 W
to-report creat-credibility
3 f6 v; s3 X. u7 Z3 Treport n-values people [0.5]
6 o7 r- q+ B; send# k4 \$ m* |# |7 V: q

! L( A' ~# U) |, y7 O1 p8 ^to setup-plots9 l" r! _; ?% D& ~1 S0 E3 s; q

' x2 {( v7 \1 h( J* R$ uset xmax 30
! N* W: @& I; Y5 d' d( }' U
$ X* O" z# k6 p6 t9 t( `
set ymax 1.0
6 |  u0 z' G  d9 ~

% ^  T1 C0 T' Q1 t9 u* dclear-all-plots
6 l% Q; o7 @" @: b

7 H0 C+ l! W$ ?3 T, |) l/ lsetup-plot1

$ M" M' R1 i  E' t0 j
9 e6 u; v1 R2 f, tsetup-plot2

. z) D3 Z. s8 k( A3 l4 @
: s3 d/ e. A5 z) v+ c' A+ o) Gsetup-plot3

% U9 P9 U0 u" d3 @1 w4 ~/ ~* R5 n9 Zend
+ o) C' U$ _) I) f( a7 _
- l% [, q8 B; W- L. q;;run time procedures
/ J6 i+ o1 Y# a) L4 @& F
6 G% Z1 j# A$ p: t- m0 a& w( kto go/ y- I- T# t- v6 _# {

5 j5 i  g; G' v6 ^0 c/ Jask turtles [do-business]

' n  W9 ~4 ~) ~7 u& X% \end
% Q  Q: p; Q! N2 M% O- D# A) H3 B% }4 z3 r9 `
to do-business
+ S% }9 a* H" k' \' F( ~8 K) [

; [) ^1 d  d0 q$ {3 n& M
$ F. w  ]1 I& Mrt random 360

' x3 b! E# W) @( v3 d1 p8 J; v$ ^
fd 1
: i: G* j( ]# X/ V' g  y# f
' A& d  j2 ?1 ?0 H; F7 k
ifelse(other turtles-here != nobody)[

- _. f' ]7 }7 a! X! _! p' f0 Q# P, P
set customer one-of other turtles-here
3 h8 p7 X/ [; _
8 s0 m( W0 K6 D. g
;; set [customer] of customer myself

3 L9 {' X% {; t2 W- i) D
6 ]/ y+ }" Z3 rset [trade-record-one] of self item (([who] of customer) - 1), c- O$ g9 c* Q# Z6 n9 j7 p
[trade-record-all]of self8 t6 L, }- _. b2 R
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% `' G( [! V0 ?$ q% n+ W
) `. v/ l2 A5 R9 W0 u2 R4 A
set [trade-record-one] of customer item (([who] of self) - 1)
6 Z- M$ U3 q4 U8 E[trade-record-all]of customer
' c. q  B" Z/ u/ d& E) J

0 e. K9 c4 f4 n$ D: Xset [trade-record-one-len] of self length [trade-record-one] of self
4 F" X( ]5 a& |0 h3 G1 s) F
1 }; ]( L+ M2 Q# G6 ?, M
set trade-record-current( list (timer) (random money-upper-limit))

9 b$ _2 Y8 G- l; }$ }* G
: D, g( V; a, C; Fask self [do-trust]% c) B0 N$ k3 f2 k
;;
先求ij的信任度2 c6 U/ q1 m( Z) Q) t! A
( f& D& N* l) y, l# i3 i- l+ i+ h
if ([trust-ok] of self): C+ e$ y7 V, N5 x/ ~1 k
;;
根据ij的信任度来决定是否与j进行交易[- J' Q( s% a# `7 i- r
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself$ F) s' m5 K" S" @" g
& s3 R& Y  N& B- s4 Q- W
[

1 |" f; b- o9 `2 D& i6 o! O. ]
7 r5 H1 W: z: k+ N. l  Edo-trade

: Q  ]' j0 M+ M/ R  h; h5 a
) M9 G0 o8 R7 M$ C5 B& [update-credibility-ijl
7 G: M3 J) ?' r4 R. R3 s' o

7 W& ~% X& E2 aupdate-credibility-list/ ~" e3 z% ^5 S( c# L
/ m* U: v# ^# V" Z
0 X' X* }4 J  k& Z0 E. x; k( O( `
update-global-reputation-list
; ^8 z4 i# j5 J4 n' N4 [) G
6 H' M! H* b  \4 o
poll-class
/ L/ k( I5 p6 F, p( ~9 I) m7 l9 S

* R: t1 u2 c! Q0 m/ Y% q- vget-color
8 ]+ s  Q& T4 C7 b0 y! c% X

0 b, X5 @" I( ^, b]]
+ i+ z( _% ?8 C2 e0 l0 h. S2 ?
7 o) Y0 V' Q8 I: X;;
如果所得的信任度满足条件,则进行交易
8 e& M0 s0 I. d8 w% y" z# X$ I( o; t1 p9 h7 `0 s8 M9 S, o
[
  C- F, ^, O4 r! N, f

6 V7 Z; J' K* z* Vrt random 360

( J' Q$ [# W' j: Q) B4 u0 m+ v/ o" d$ ]5 U3 n8 B3 H" }4 d
fd 1

% Q. L# ^% B% i9 T& \# \3 b% ?' O6 j3 w5 E7 P
]

, t* V( q: M! d
' m# K# w' O$ ]$ I* J" {end
% C7 d, F2 `" Q
1 E9 Q6 \* w/ {% _* R
to do-trust 8 |6 u8 m- k; |% u
set trust-ok False4 G' h1 a/ g0 w( U' |% X

& u' Y6 h# P, I# m# c& T
8 R+ F5 _0 l( @! c# O
let max-trade-times 0& G1 @- W  _+ R/ v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 O' p- X3 m' j6 Plet max-trade-money 00 Q' D. G+ t9 [5 e% T$ ]: M' X
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 R/ G5 ^5 P4 h
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 R/ w8 x: h$ d. g. ]9 q  t7 n
, L  a5 @& l9 y5 Y1 h( C
! }( p, J" c' n, W2 k" ?# t
get-global-proportion
( g( y6 {3 {7 }- X( {let trust-value" Y- i, M% y) }
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)

4 u+ O: A  W8 \1 z' {# P% J6 a! {if(trust-value > trade-trust-value)
- d' D6 N" U- d7 d: Q5 _9 k: V[set trust-ok true]
6 e8 E; a0 J% V$ _end8 j8 u' J. j, K) f! f! H6 N
" b- E& o( Q. U  M' O
to get-global-proportion
  B% X( S+ H" C+ Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ f9 l. d1 S2 Z: r' [9 r[set global-proportion 0]0 V. _2 o& ~' t! W* r
[let i 0. G- ], g6 _, d
let sum-money 0
% e& }3 E* H6 E6 ~3 Pwhile[ i < people]" q% p. o4 f( `! D2 {$ U; Q. c
[
  e9 ]. _/ t) ~if( length (item i! c0 w  [; Y5 V, D
[trade-record-all] of customer) > 3 )

' y" q- e7 n7 Q- f[- u. D, C* l8 ]$ N/ D( R
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 {, G! ^+ }* e3 D. A* r]
. E' n7 d9 z# F]
0 D9 P9 `: Q+ O  J. Klet j 0  j( H$ ?4 b! ~& G; {
let note 0
0 h! S: N8 R% [  v) G. {9 ?while[ j < people]
  `' O! I  I. L, O, B8 I[
% ~( F2 s6 [# G* U% s" v8 Oif( length (item i# r  D8 z* N% e1 i# r  ]; ]
[trade-record-all] of customer) > 3 )

" z0 r/ c4 p- D[
/ T4 m* B+ p" @3 \7 u0 y' mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 p1 x; T7 ^: y5 f[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( r, t. m/ r, e5 ?) g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% j# r/ o2 O3 \4 x4 i* t& |]
" R$ F7 }; O/ B( ]+ o]
- `! a. a2 W8 K% [& G4 J+ o; vset global-proportion note! g! W5 I# g4 h) R1 r
]/ y4 i% {2 V, x3 \( @) R9 c
end
' D; @& i4 k* N$ }9 X6 u. A. F1 p9 m" \: K, {8 X  v7 P
to do-trade
: N/ O% {6 E& ~. c;;
这个过程实际上是给双方作出评价的过程
$ J+ S6 a; T& s8 k9 [7 j: uset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
2 U7 m8 U, h* o9 \set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价! [) m$ y: \/ D9 S- s& D* A
set trade-record-current lput(timer) trade-record-current' A% a3 H) F/ N
;;
评价时间
; @7 e+ j) ~$ F7 x: U( c+ iask myself [
* X3 g$ q! O/ p7 a* xupdate-local-reputation
: L/ r  ^' v7 ]+ s* hset trade-record-current lput([local-reputation] of myself) trade-record-current
: ?: H2 S# z  V1 Y  B]4 R1 P! I, \5 M% {
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
  u8 M- Y+ ~; ~: M8 _8 ]* r;;
将此次交易的记录加入到trade-record-one
9 G) E- Z( H6 R5 Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), k* V, Z% D# B, f
let note (item 2 trade-record-current )
; n7 a9 u  m; {9 c$ k! aset trade-record-current
  d! h* g3 g; ^; g2 t  h(replace-item 2 trade-record-current (item 3 trade-record-current))
) g; [6 c! {5 S9 F8 s7 ]/ _( V
set trade-record-current
6 F" O4 X' B# I" j% X(replace-item 3 trade-record-current note)
* y0 L2 F- x$ t" D; ]0 p. m
) ?3 D* w3 u- P; q  ]

3 J( ]8 d8 `) w( Hask customer [/ R8 T% O  u  W# `
update-local-reputation' p7 v, m7 f7 F' n, v% E
set trade-record-current
. L8 e& J- i  l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

3 R$ K/ X' X" d% |! l]3 y( r) n/ h% H' f. j: H. Q
' `7 Z9 {' P5 z% D3 ~

5 H* p! i" H0 G: N5 U# f8 ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 Z$ Q+ o5 R7 s4 G* C
3 C0 Y- I( s: e
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 l3 a7 |5 ~3 j6 m3 _
;;
将此次交易的记录加入到customertrade-record-all. G- u/ X  J/ D3 {$ b
end" J" U& g& W0 g' \5 _: r* V$ z

( K: v7 s! G7 t& h! Wto update-local-reputation; J8 F$ Y. x) c: N4 E' @6 w) h
set [trade-record-one-len] of myself length [trade-record-one] of myself
; _3 v  `* g) P6 m) N5 R4 i; B/ k% g& p3 u# ~5 q- w1 t
, `# w- K0 @' @& S
;;if [trade-record-one-len] of myself > 3

$ o9 m1 h4 j! l/ O6 R9 d4 jupdate-neighbor-total+ ~. S& k" A! P  J9 p' D
;;
更新邻居节点的数目,在此进行' F: u* p' v$ {9 n  {# t& T* l
let i 3
, n3 k+ [; p8 k4 slet sum-time 0
! _! k7 D! e  S3 X/ Cwhile[i < [trade-record-one-len] of myself]
3 ?7 p2 M3 S  n3 \4 Q+ E8 o* a$ Y[. p- u/ ]% B" Q! O* X+ D: V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 @& V  B/ @! i' e% Yset i
. W: S8 L; U$ g  n! Z4 t( i + 1)

  H& F( k4 _" s]
. v" u% e2 C8 {, ]let j 3+ h" Z$ k( Y# y/ w& I- T
let sum-money 02 H0 _+ i2 ^4 z7 ]4 u! R- N2 p
while[j < [trade-record-one-len] of myself]
8 ~" `$ k* V5 A- }% Z4 R  ^; X[
# M- w+ Q/ i& s' _& Z' A& S4 \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)# h: i$ o8 a3 q
set j
2 c/ [) u# b# J2 s2 V6 I4 k( j + 1)

1 {: U) G) M% d; k7 P0 ~]  l( G' j0 W* C2 `( A
let k 3( j% g8 O3 v8 e/ A4 B
let power 0
( B0 s$ y9 _6 R* ^  ulet local 01 m& C' v  X# Q* X  d* X5 ^
while [k <[trade-record-one-len] of myself]
2 A+ g. [$ v( f) Y% |# O) [[
  f( M+ ^1 V2 G$ G* F: \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)
! b1 Z- Z7 ?' p( nset k (k + 1)( H; H3 b/ Q. q& [0 j$ H/ U
]' Y$ @# s+ v  Z/ \! ]
set [local-reputation] of myself (local)
" Y: i& t+ A% S" Y. _end, Y8 K7 p" t: _' ~6 m$ h
( F3 t9 ]5 i( h) h
to update-neighbor-total  O5 e+ p9 F% d' ?% J
. X3 @! m; T) Q4 v. H; |8 a; o
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 W3 v8 j7 H* n' {; R" I2 P
: d6 ]3 t6 @+ C, M& k

4 m$ u( c/ x( E% }- h/ E0 jend6 v& M6 \3 J- u
, k/ i4 t% L) H9 \0 n) {5 u- {$ A
to update-credibility-ijl
! `/ s1 N6 {6 z4 k) L% [
- \) @5 U- W7 `6 F# F: z4 _;;
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。
6 N; M3 }0 j4 S; `2 T% i8 Zlet l 08 p7 M8 U5 |& l
while[ l < people ]
) Z& T8 P9 |2 o3 w) W3 _7 T;;
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
) h  A+ r5 [) ~. ~  N6 p5 F[
6 C$ B5 l/ \. K9 n5 f" {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 e& D: x! T6 Y+ D- ^
if (trade-record-one-j-l-len > 3)6 h0 V( z9 [8 `4 W6 [
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与ltrade-record-one& x. p9 M5 p" \7 j
let i 3
% v  U$ V" g9 S7 I4 H: C: e( I* \let sum-time 0
# ]3 z& d# ~2 t2 c) s9 Ywhile[i < trade-record-one-len]
6 ]# W4 [& _" w) P[* d- b* }7 q' }0 r
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& F) a+ T* Q0 q4 }1 A+ i8 h; ^set i
& Y# K2 a: ?4 I. M9 W5 M9 ~( i + 1)

$ ~- {8 K2 g8 Z$ }], l& Z! A5 c: ]% c7 a
let credibility-i-j-l 0  E/ Z+ R9 G% k6 b$ L4 w8 B! z2 v5 Z
;;i
评价(jjl的评价)
+ i6 C2 u$ l. x4 ?let j 3' B7 P) {) O8 c! y
let k 4& z$ S0 l4 X3 N3 A
while[j < trade-record-one-len]
% {- u* H+ w/ `% S# i[- A1 ?1 s" {' k( V1 h4 E
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& o) ^3 M1 j; a+ Q
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)
& d+ X& ?, L0 J' A& sset j
$ Z: j& h) ]/ ]6 b( j + 1)

7 ^7 }5 J5 Y! v]
# W3 \0 G1 Y' F, Dset [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 ))
8 K( o9 [/ ]5 J2 l7 g) V/ ^; b! y. y. \5 _" a9 d- I3 s. f( S, t/ ~& Q

0 n5 M9 t# [0 i  D' ~) z  Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: D8 s1 v! h/ u# i' ]" p% f( V8 K;;
及时更新il的评价质量的评价
: \0 h; B) w( `& Dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- c+ b% U# u2 s) e6 |4 z- |
set l (l + 1); a: f7 a' n7 R5 y2 ~9 O; r
]
9 r" _3 K! W# |5 Hend
8 |% T# e- s5 I% B: D/ l4 W9 {( a5 `0 _5 h% }& |9 v7 X
to update-credibility-list
; B3 a) r8 F# Xlet i 0
$ Z9 H2 I# k- i! Cwhile[i < people]: r0 s, R: ~2 O4 G8 B
[
; a" G. ~/ ~$ T/ _3 u2 V7 \let j 0# o  b7 n5 k/ A- {/ r- Y7 X2 B
let note 0
1 y2 s" Z4 @) B7 [7 Dlet k 0
/ r' b! W. C: o;;
计作出过评价的邻居节点的数目6 Q; S3 ?' F# ~
while[j < people]
0 C+ I6 G8 a" i! o1 ^8 q8 D; \9 U[
! Z: a+ e* G" u/ b6 vif (item j( [credibility] of turtle (i + 1)) != -1)
- K. }* `, |2 z: o! h3 w;;
判断是否给本turtle的评价质量做出过评价的节点9 u$ u* l5 b% n4 P1 e4 i
[set note (note + item j ([credibility]of turtle (i + 1)))
# @' a7 d$ C2 y. k+ h;;*(exp (-(people - 2)))/(people - 2))]

/ }  u) L  ^2 ]0 }! Xset k (k + 1)! n2 Q& Q# H5 T! Q
]
( D( [; x& i3 q9 eset j (j + 1)' D/ W5 X0 F& [% e: H, D* c
]: d5 B- y0 s4 m1 R; i& ^- p# _4 G: f& k
set note (note *(exp (- (1 / k)))/ k)
- _7 [% J' A- @/ G# e8 i: |set credibility-list (replace-item i credibility-list note)
: ]" L+ Y/ Q* v0 Xset i (i + 1)% |1 `+ r: B2 [9 \4 X
]0 Y1 u' ~2 t' W* @- L$ d& N
end+ Z- c! n1 @1 x6 C6 q

& p& x& W9 X! zto update-global-reputation-list
( o7 r* u. O4 h& Ulet j 0
$ z0 N, n* F# x% w& _/ x' p4 Cwhile[j < people]) E5 G# L. M1 ^/ |
[3 Z( }9 R5 ~" [% A; o6 a$ J
let new 0
. D7 \- {1 U% T* [6 Y1 o;;
暂存新的一个全局声誉$ ~; g: H; J* q9 x& L. |% ]8 M
let i 07 b0 p+ C' K# [% h
let sum-money 0* W* S. G9 L5 H* u
let credibility-money 04 n" ]! t2 ]. k; T! j& R
while [i < people]
; `8 n! b$ [3 U/ ^) B; E5 y8 B[
, x" D( |. X& A. |set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; ^; Q- C6 r/ r- w- Z/ Uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- E4 r0 [1 d: F, g: M2 p; F+ ~
set i (i + 1)+ y/ \* [/ {* w4 P" [9 ?
]
# Y( K+ @* ]( L) \8 {" Alet k 00 r3 x# C6 ~! |
let new1 0
# B+ W& I8 L# N) k- i7 j) Pwhile [k < people]
1 D( H4 S: ^* j6 ^5 H' m" @, e" W[$ g" S# V& @' f, A: {0 `
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)
7 A* G# ~! q' Kset k (k + 1)8 }0 K, C% E" F2 x$ C
]% O/ }! L" {; U& G: X9 n
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * K6 p9 e  O+ J2 d( R4 P1 S' b
set global-reputation-list (replace-item j global-reputation-list new)
! R( A. }. x" m" p+ t5 ^( k! Qset j (j + 1)
9 o0 @8 a4 h5 }4 _' `% B]6 s  {4 t6 V9 @; }
end" e  J9 w0 N* ~+ `$ o# k4 q! d

% M% m! n0 Q' ?5 t3 I
% D5 B7 u4 G6 q4 O  T- L  N# q
% d5 k6 z8 [/ P+ U" Q' f. Ato get-color( }$ O4 X' V/ k* t7 d* i

# g1 `' l- D" \" y5 Uset color blue

9 E2 @4 V2 ~$ j1 Vend
: R% }7 Z% L5 @6 I
" u2 R* ]0 n, o. u, i9 uto poll-class
& e$ I" D, p) m" C  j" Aend, h8 W% }) v1 I' ~  B# u2 I$ a. [

& I' _% v9 O5 \) u) l- Dto setup-plot1
- j  D5 b, P% {( Q, F/ V
' e( u9 _( d$ M- A. x( i# U5 Gset-current-plot "Trends-of-Local-reputation"
% n6 w& Q  l' k9 D
% ^( @9 G/ {6 n1 p; y) \
set-plot-x-range 0 xmax

+ R6 U$ Q2 y! }% A. k: H0 u; O3 {% }" N# ^: \/ m
set-plot-y-range 0.0 ymax
& a! B! E4 M6 L, f0 L
end
/ Q( ?* p% d8 |, m0 Q" `/ }+ E# U4 K
' O  F5 G8 o; A2 \to setup-plot2
% g- f  a9 \2 r. E
& a0 N6 x, Z- Q" P& C6 bset-current-plot "Trends-of-global-reputation"

9 f. K0 \7 X  b- m7 w* g' O3 k% F. J* x1 c, ?- o  B
set-plot-x-range 0 xmax

# C8 E: ]5 O) v( z1 d( k, j/ D3 m& Y) @
set-plot-y-range 0.0 ymax

9 }1 H/ n! F. h1 j1 N& Kend, O/ `: [- T9 @3 g; I& b
, X/ B& [9 n2 d/ K3 f* U" Q/ W% {) q
to setup-plot3+ a, m, k: N$ Q) K+ t# F/ t5 l
; n: w  H* V9 V
set-current-plot "Trends-of-credibility"
# A) z; f+ c+ d' c- E% Y6 A
' F% r4 N1 q2 A9 d
set-plot-x-range 0 xmax
1 `9 d7 S+ n4 j: p, U0 N
" X$ m# r8 K4 Q9 D4 l1 q
set-plot-y-range 0.0 ymax

( ?. c4 E0 @# k0 O, A/ tend- u6 m/ y/ ~2 \/ f
! B  G8 x2 |# q
to do-plots$ s( b( i0 L4 S% S  g, M  j5 R2 `
set-current-plot "Trends-of-Local-reputation"
3 E: a: ~3 V9 B" xset-current-plot-pen "Honest service"% B5 i0 e- M' r# J
end
1 K8 e3 ?" y7 C+ i4 N4 ?8 R5 B0 C% B
[ 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.
2 ^) o( o* B& U: L
9 C3 F$ k/ L  `0 I, L) C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, 2026-5-2 23:06 , Processed in 0.022622 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