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: 11281|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:
" E0 ~# b( ~0 K& F, g9 S6 F. g8 o5 dto do-business 1 P+ w! H: O) C/ e( A& _, _
rt random 360
' F7 P  M. p7 {0 h) }$ v% E fd 1$ A3 w: t  r" v3 T# ~# k3 q
ifelse(other turtles-here != nobody)[
# r$ k" O" g/ z, L. q   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 V7 e& P4 h  g# t# w6 |   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    3 Q& t( V* {" U
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer8 w: l4 @. g+ `: C& |7 a8 O
   set [trade-record-one-len] of self length [trade-record-one] of self
3 l9 W) d5 w4 X7 l- C   set trade-record-current( list (timer) (random money-upper-limit))
. _$ K9 {6 B  P3 s- o! J. W3 z6 f6 l6 ]/ V" b6 k3 |! I% V- O. ^
问题的提示如下:1 F8 b* G: s% Y1 o& E$ o# l& o

" x1 \0 G  P- N9 u+ g; aerror while turtle 50 running OF in procedure DO-BUSINESS
4 t4 S' G' d2 X  called by procedure GO/ {+ V8 e: ?6 m0 g
OF expected input to be a turtle agentset or turtle but got NOBODY instead.; k) Q: V3 ?" a% ?: w
(halted running of go)
, y: o" I8 t) s' U1 H# N9 D
6 j% i( Z: C' i5 y9 [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~~
$ S6 ?# o0 b/ L/ H3 x0 ^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& S- B4 Q. u0 _0 V8 F4 F  v( w
globals[
& f; q5 p% M4 B$ _xmax% H+ d+ h7 u2 F+ W1 l/ I  x, \
ymax9 C1 s& H6 B2 {" k1 |
global-reputation-list* e" Q5 t, ~, V- S

" @6 `$ D2 L! V- K+ [9 ]/ w4 z;;
每一个turtle的全局声誉都存在此LIST# i$ K4 K8 V5 z. C+ ?+ Q. R) p
credibility-list
& E6 e) F# R4 _3 L1 f;;
每一个turtle的评价可信度/ E4 G* ~& Q+ }
honest-service* R; @) h; t- w  L* G
unhonest-service
' T4 y% x$ u- U% w8 l8 zoscillation
1 Q  {7 n9 ]$ n/ G5 Q6 L% {1 `- c( [: Irand-dynamic- J( N. ^( w  \7 h# G: }3 R8 ]
]) k0 ?7 g% ^4 C/ A9 N
2 L- n" \# @; ]5 Z! N3 h
turtles-own[& |) K5 D3 ]) x1 A7 u' G
trade-record-all0 I! }2 X. R/ E/ @0 ?$ D( ]- |: R
;;a list of lists,
trade-record-one组成, l/ F3 a# Q. r. `) F$ L
trade-record-one; A  w% J' n% W# |5 ~/ [. c# D6 H$ V
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
- i- R2 q; r/ c. ?  f6 A+ _: C' T- u4 {& J% A
;;[
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]]- v; k% B, l8 m4 A
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]
, q6 U3 p  m5 B. ?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
: I2 [+ g5 ]- yneighbor-total8 n( H1 ?+ L. I0 r
;;
记录该turtle的邻居节点的数目: @) S: r: N9 O! b# S; K3 Y# i
trade-time3 {  T) [9 A; E" ^( L5 }
;;
当前发生交易的turtle的交易时间1 {5 I" H5 E3 D2 q* C# y! }
appraise-give
6 [+ B+ A1 b! b8 q2 E' v) ~/ b;;
当前发生交易时给出的评价
# N) U+ d& D! l7 \) O7 y/ Mappraise-receive
. D/ Y4 S  U" J# j' ~;;
当前发生交易时收到的评价
( |* N' a8 j1 b' _6 ?& p4 u, Fappraise-time. u, i) h+ c( n# v
;;
当前发生交易时的评价时间
+ Y  k, p+ {( }$ Slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉; d6 |+ _$ i4 N7 X# i' ]; [
trade-times-total6 ]% U. T' C! A
;;
与当前turtle的交易总次数
0 Z, {  F0 g5 F+ E' R# Btrade-money-total& {8 @* C+ n& R2 Q+ b
;;
与当前turtle的交易总金额- T7 d( \# v) f
local-reputation
5 r; v7 `9 k: N# d% e. K9 E* sglobal-reputation( w2 y  O" K$ l6 S
credibility
9 x% T6 w" a% {  Z# R+ z% C% n. ^;;
评价可信度,每次交易后都需要更新
# @  J" `  t2 d6 |; z- p% K3 d, k4 _credibility-all
9 c  @+ ]2 ?' @- Y. c; i;;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
* v! P; P3 k2 t  r2 O, L* r4 R+ @1 p& z( D" q1 y& {, v( i: b
;;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
# A4 O9 @8 Y9 @; b! I. ]3 t1 U1 Qcredibility-one- B9 L$ m/ }. b, Q  X7 J
;;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) l# l/ Z& W9 M* P) p" E
global-proportion/ R1 B+ H: _# b0 I: E
customer- W. C; q: b' W( n) j3 x8 p
customer-no
, m) ~# e5 W! F4 i+ s1 \trust-ok% ^/ J% l7 h6 Z
trade-record-one-len;;trade-record-one的长度
( q/ _+ c/ @% N' h  r& k# L5 h6 u]
$ B. U9 h0 c' a0 R  D# H2 `
1 ^4 C+ k+ [/ m+ U7 Q, v5 r;;setup procedure
( }4 T% `* S: v7 u5 [6 r* }$ \7 L( ]7 G; r
to setup
; @" H- j9 E$ u$ w: s4 k2 a+ J8 E) E
6 X" u/ ], E2 n( T& s4 b: eca

- Q" B' |; }3 O! \# Q
% u5 Z, o  a0 g0 R1 Qinitialize-settings

$ U' i# S5 Q1 V. z7 ?9 d' t' {
% |7 t! H# D# Tcrt people [setup-turtles]
& C6 b8 ]. ?# F
4 `, ~) O" `6 P/ t- d
reset-timer
5 S0 `; [! w& b6 U5 E0 r
( w1 E% I7 Y' N+ o( o: a8 Q; a. o$ W
poll-class

- }# b0 H; T* c, B9 a* e: b. u% \, W$ p9 z( G( L! t7 N8 r
setup-plots

3 O( u  K1 F, R( T% `) c! B1 X) C
- b/ T# @6 V9 n4 A% m3 Ado-plots
! c  u: k  h! N0 P
end3 u, S8 g1 [8 V2 M

% {# f: }. w4 Q4 V# ~to initialize-settings0 u! \# n  |- S: C( l

+ D$ K- U9 n/ s. T, hset global-reputation-list []

  z5 M, R8 a) T! B9 x
! d2 H3 I+ p; b6 Lset credibility-list n-values people [0.5]
1 F' v9 K6 X" N* Q/ y0 i) M, }7 a

# Z7 j) e* s( H4 Yset honest-service 0

1 E. m% k4 E# E0 R1 K' z1 m4 H  i
& n5 q/ ]& _$ y+ o9 y( R+ N9 D9 gset unhonest-service 0

1 Q  m' V% e/ ^4 \7 P& J: F) q' e0 z& S) k  W& r( D
set oscillation 0
4 B1 ~2 D1 c1 i

. A! M! m+ M2 H  g1 N: q7 A" Jset rand-dynamic 0
, m, p  M0 X" z# E5 |
end
: q* K; q% Y: g; G' _
+ J. m2 P1 u# L1 Lto setup-turtles 9 ^. @0 J9 x: g$ L; _
set shape "person"; Z6 M! O* m& _! i  j8 t
setxy random-xcor random-ycor
6 Y% k7 U+ {! T+ u. B3 kset trade-record-one []2 c5 k& \) ^4 }; j9 t/ B' h
6 x( s- y1 b# I3 `$ u; Y
set trade-record-all n-values people [(list (? + 1) 0 0)]
( {% ^7 j( I3 G: U. d6 }( j

" I; g( g9 h, Y5 \7 A7 U( @set trade-record-current []- d# }; n/ `: K2 h" `
set credibility-receive []
8 t) ?/ m  W9 `) eset local-reputation 0.5
, s- E0 Y- Q8 @# C* V( W9 R+ jset neighbor-total 0
6 o( g8 A: c  p0 w6 n1 _set trade-times-total 0; K7 [/ \& P0 W" V4 L* r  F4 }6 M  |
set trade-money-total 0
' Q; l' D. w) c5 Y! N" Lset customer nobody
1 F7 Z. i1 f3 h) t1 }  K9 P: Nset credibility-all n-values people [creat-credibility]) B  N4 a- d7 k/ B- @
set credibility n-values people [-1]1 b. W. ~: |$ ^, V8 H
get-color
; I) c9 `' c* t  a) j4 ?" k9 D  L
- d# {9 C" Q' j& R' }
end
% C$ ^5 Q# b- _' D) j3 B* J0 c, c! K6 V7 F9 K: a" f  \
to-report creat-credibility: C8 C* v# h# L
report n-values people [0.5]
8 l7 ~, D: N' I3 yend
0 g0 h! A) E; }4 K$ i! C) V: J8 x; K; }; g  P  E, F; L
to setup-plots8 k5 K3 b$ a( o5 x3 B8 |
. Q0 B0 J5 m! M* f  l1 |
set xmax 30
6 `: q7 L+ z: V# T' F' F6 }

: K- D' |+ L* ]set ymax 1.0
7 E5 B! H1 H! v$ Z3 F  z

. b( W" i$ @) x( b' Z' @clear-all-plots

# q8 u) ~$ |% a3 y" \
2 E' Q$ ]2 e0 H8 J4 R; [4 ]setup-plot1

( \) l: X( a( @5 Y$ a0 B8 L# w5 |8 f9 T
setup-plot2

2 |- M8 {+ \# z: G/ a
( l0 O1 O, ~7 D. ~( _% ysetup-plot3
. u5 h1 }# H! v2 q; B  t
end6 E! l% n6 V" W/ s7 n2 S

4 \; h/ N! }' Q8 p* y;;run time procedures
* t* @& l* @& K' s
. k  r* ]7 v/ E6 Y& e8 @0 Bto go" e/ }# s+ M; _# }  j4 m) C
8 _3 S0 P$ D5 P
ask turtles [do-business]
+ }" @( y9 S# P3 Z. V! {. p% T2 T$ A
end
9 C! N2 a% y+ z( x1 c5 E8 {& g" R1 c
to do-business 3 `2 z% [. F$ b0 i. g

2 V! P3 x: J8 |+ c' w
; d  h3 T. {  j6 irt random 360
/ T8 a9 a# R, h; z

: x8 e3 j+ M& R3 N9 N3 H" R, hfd 1

# s9 r; r9 l3 X% ?
/ b9 _3 H% m* t6 Rifelse(other turtles-here != nobody)[
# }& f$ Q8 O8 G; w

4 U  T, f8 `2 ^1 ?6 U3 L4 mset customer one-of other turtles-here
0 H$ L3 G: V* z) u, n5 w% B

/ {- ]: K# P: N$ {  I& M' `;; set [customer] of customer myself
1 s/ s3 H) F& Y9 l

' o( e" k& C0 H5 rset [trade-record-one] of self item (([who] of customer) - 1); x5 w5 b$ s' z4 p& B4 Z
[trade-record-all]of self; p( P6 D2 f+ g/ H, m: z6 n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, ?1 ]$ s% b: h3 x' v1 o! r1 }
0 c5 H; |$ J# S- n
set [trade-record-one] of customer item (([who] of self) - 1)0 `1 }( `) S" K6 v0 z! M
[trade-record-all]of customer
, g& S9 @, T( U% L8 i
9 ~+ c, `* y4 R2 O0 ~3 w: \: C
set [trade-record-one-len] of self length [trade-record-one] of self

2 \. N5 A; I  O. u* N3 p9 o" c. z) h, y, {  ?: C! u/ |
set trade-record-current( list (timer) (random money-upper-limit))

: ]. l$ Q" P4 C" e) h' b' Q& P( P9 g& S# e' ^( b. y, h
ask self [do-trust]$ F2 L- ]$ c( x- I9 V2 J
;;
先求ij的信任度
3 w& ?) F% `6 [4 M% J
2 r! P" B( D& U% cif ([trust-ok] of self)5 X! U- o: _; `7 r5 ?
;;
根据ij的信任度来决定是否与j进行交易[% e5 q% }3 K8 V$ y  k9 v
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
& K8 N1 p1 D) a: h8 y
- t. \! [. B6 M; c* q[

7 ?( @$ n! x' B7 ^
, E( u# \' |6 r$ ?8 cdo-trade
* h: @8 @. |  s# n" p1 P) {' k

, @: _2 L3 I: H2 N7 H7 z7 L* Aupdate-credibility-ijl

, y0 j6 G) j% ?- b& n+ L
5 c8 n6 Q8 u1 {! h# _2 \  [4 tupdate-credibility-list
& S) R6 Z& A# p* Q* K$ U2 {* F

  F* _1 e2 z% ~. I
9 J" L1 M3 ]. Z. `* z" b1 t/ M- [update-global-reputation-list
/ W, p' h& j0 c( N% u) R4 A
7 b4 l0 t0 s/ m0 z# G: k2 u
poll-class

  w0 v) v& k$ e" f9 C
, r! b: n& {) U6 \" B& ]get-color

& _7 N3 m" ?! g4 {+ R- O! r4 |" k  P+ z% k, n) N$ g
]]
9 l  i- [( s; E/ E
: \# V7 P: e4 i2 Y+ ^$ U+ C; ^;;
如果所得的信任度满足条件,则进行交易' @* u/ R7 B! p- P! n- U5 f/ i
4 y3 ?: N. i: m- R4 x
[
- z! W7 p8 F1 d

8 ?) {' u; ?% srt random 360
+ S  [% \8 }; g" w2 E7 I# x

( H4 a& X" U0 E2 q' K$ m7 w7 Dfd 1
2 L% F3 v6 }( R/ P$ ]( K7 H9 k

6 j* T) O1 p' A3 U! q]
2 `/ W- D9 r) ]+ P" X
" }0 [( H2 y( {. Q2 z
end
+ \' y+ y5 w. B7 s$ S& _

5 X3 l3 p) G2 O: b- \5 ]% Zto do-trust
0 I9 a! ~' H9 S; @set trust-ok False  }* G. `/ U% m) i1 J- g5 j

1 |- a: I) u# t9 m$ [9 z1 M

. y+ _( \8 U* ^9 H+ ~let max-trade-times 0( Q/ Z' v  U5 a9 H( P2 R- S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ S4 L4 K& T# \7 w6 L1 V6 f4 X/ dlet max-trade-money 0  y! Z. l( l/ @1 ^
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
  a/ w) R6 k' {2 Z$ D( i' i: klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 Q# P2 I$ j  Y. z& {& d' ~

0 L6 M8 w$ b& S+ E  d
4 p3 v' N7 W  |% n
get-global-proportion
. x% j% t" C% @7 [: ilet trust-value
- U& [% x' b2 I2 U4 hlocal-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 V, `. X2 j, |3 j$ O* j. X/ }
if(trust-value > trade-trust-value)2 E7 P* S& ~' S* I4 M/ H: W
[set trust-ok true]
" T8 f( g& z& |: Fend' P* Q) |, ^8 q! S
6 v) O: z0 p- I6 I
to get-global-proportion  z. @: ?+ @% U3 J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# w2 `9 m4 H% X
[set global-proportion 0]
6 c" f% |4 Z: e6 k[let i 0
+ h) L3 P! g  [! d& zlet sum-money 08 M' q' n2 q. X! X, V
while[ i < people]
$ e, R: U0 T& N4 l3 U2 z[' G* N4 V" a: \
if( length (item i
$ q$ z# c+ _& H6 Z7 `0 E- U[trade-record-all] of customer) > 3 )
$ ~4 m2 r0 U3 t/ r
[* M, _! z5 |; k. M  x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# {. ^" t$ P6 n4 V" @9 G
]
: _0 k2 C' \4 K, k3 F]
# U. ]& i  m6 ?' y, r4 Ilet j 0. e  @+ v6 l8 V: l% F0 J& L
let note 02 K+ W$ V8 }$ U% u' o* R2 n
while[ j < people]
3 U9 j, `$ P" Y, L+ I* D+ ][
% j& k! F% A5 O, Z/ B, u: I! |# w& nif( length (item i
( x: |8 T: X; N2 |$ E! H( E[trade-record-all] of customer) > 3 )

. N: i+ G1 c" M" O[; l% Q2 m1 [3 b# Z8 q5 x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 e5 k. g& }( n% A9 v; N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 B4 k' J: X. u" Q) V8 N' C4 N
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! Z' [2 y9 U4 C6 [# }]1 C. s/ b2 w, ]
]
5 q6 G1 M7 j3 Kset global-proportion note
( B& H% M0 H4 F2 V3 e" j' F8 K+ I4 b0 a]  F7 K2 ]- L$ ~* b/ O$ E6 q0 J
end
# }( @- K- a. d0 z! M2 H
8 A0 t2 m6 O& B8 Qto do-trade, w; _: n" C3 Y; o: m
;;
这个过程实际上是给双方作出评价的过程' ]9 u* t$ v  U: z2 f3 w  v
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
; C; C! Y! l! K* T: |+ qset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
5 O9 t2 g3 `6 V4 lset trade-record-current lput(timer) trade-record-current) ?6 N7 i( f" o2 A6 Q% }# A( B, j7 [
;;
评价时间
! P. v! N  C; n0 S! G6 Yask myself [
$ j; ^8 x7 R9 g( x( X- h( Z" Eupdate-local-reputation+ N( ]' B' t& I1 f* J) y5 t
set trade-record-current lput([local-reputation] of myself) trade-record-current+ ^7 b1 ^+ P5 p1 ]9 A
]: n& l6 }4 b- e9 H% B/ p
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* A8 @# z8 V( L1 I( M$ X6 D2 e9 X& C;;
将此次交易的记录加入到trade-record-one
, O) H3 h* _8 v1 \" {6 B6 aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 {% ^! A) T; G2 g3 Y% ~+ ]; Z; Zlet note (item 2 trade-record-current )
4 Q- h, m5 H8 D/ Z& H$ N  V0 _2 lset trade-record-current
5 ^, I- b( n! v  w- V(replace-item 2 trade-record-current (item 3 trade-record-current))
: O9 g1 O- n# v" H* a
set trade-record-current
: O, o; O" ^7 T' {1 g(replace-item 3 trade-record-current note)9 P" I9 m: r/ N( [4 C8 U
; J# Z$ {- u3 ]7 t5 u. `2 D; ]7 N

6 m3 N( b& D7 c  G$ n/ O) l% pask customer [) g5 o+ x+ Z* m3 y2 s. R
update-local-reputation! |$ r2 S( l; t  ~
set trade-record-current
2 e! i# N& z( E3 F$ r: L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% s- M2 K! }' U) u
]
, l& Z- C$ x! ]7 q) t5 [) @
1 G. [% |+ h: d" C- Y

2 l7 o& w* ~$ Bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ e  T7 L7 [) A# y
- S: P7 E! S) p2 M1 R, }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ a  _: z$ q2 U- b3 `( J8 S" _  U;;
将此次交易的记录加入到customertrade-record-all% M( W! t; \6 X* @, E+ m
end: B! |9 I7 }# }6 I8 s6 o
( K6 ]: B2 B4 E- _+ e  Y& T
to update-local-reputation1 ~9 u; ^1 {3 [! _; W
set [trade-record-one-len] of myself length [trade-record-one] of myself
% H$ |7 G7 B* H8 s
  N" S8 y9 k& O: v5 n" T  a
0 U/ I* D! X% j2 @; A( w;;if [trade-record-one-len] of myself > 3

6 y  \/ b5 j8 t$ N9 h. Uupdate-neighbor-total
+ e8 C* Q* ^4 T;;
更新邻居节点的数目,在此进行
9 b, i; _7 I' r2 Q2 s7 n. e8 i3 @let i 3: F! m8 P) l  [2 `7 R; {3 l
let sum-time 0! E1 _2 L+ z/ ]/ ^' b
while[i < [trade-record-one-len] of myself]- `4 u3 U0 }5 x8 @
[* p8 A/ J. B; t+ a- _5 v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
  b/ O0 A3 ?; h! y/ b8 ?set i, I5 H$ r( l% o2 E- i" Y7 a# Z
( i + 1)

) f& h/ J/ [2 H+ b% g$ n]
. [3 E0 \  ~% B- @% W+ G8 L% ylet j 3( H& a/ U# l2 J7 W6 g: `* n( h
let sum-money 04 A4 Z* v, g' }8 a; i( ^
while[j < [trade-record-one-len] of myself]! G) g: G. C+ ]' Y; k
[( L9 e- `+ U; w) Y
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)8 g' s9 R& I+ |% u. r: b: R: o  J
set j
/ z# A8 c, F; Q! `+ \# N( j + 1)

4 {# z. h- G$ D$ A/ p]
7 O  E1 I- ?! E2 ~let k 3
( a7 }' g( ?7 h$ \! Elet power 0/ e  U& c' [- R4 O! @  \; W
let local 0/ Q5 ~# J2 ~# G6 i! P& \
while [k <[trade-record-one-len] of myself]& Z# i  ~' O, l
[
, T, o# f% t% ?$ V# H% Sset 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) - R4 `" O, L' j; e3 D, p+ B" y
set k (k + 1)* r  y, o" X9 I1 S; q! Z, Z
]
% X; Q1 c$ C, q6 p  V; e. Oset [local-reputation] of myself (local)
8 ?" K7 s  `) s+ I( }8 m" c' J, Rend
( j; Y6 S% }* I* z9 v
5 K1 n* @/ ?" jto update-neighbor-total
2 ]; O" j  l3 ]1 a' Z' R" N* `8 F+ Y8 G# U: v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 l5 |- M* n& p4 k  v  V3 C& L9 x- L2 {' g" e

" g2 T: f. t$ I/ uend, A) q8 X$ c4 [3 T) g5 g

5 f6 q- {! m4 y8 j& M8 t. n' ^to update-credibility-ijl
9 v0 t. d5 i3 v2 F' ?! M: F
7 D5 _1 P3 }* v2 \. m# C. `( Q1 Y5 X;;
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。
3 r' z; M* k5 ^0 H# ~let l 0
- C9 o; P' S) o, B9 I( a" |while[ l < people ]3 w3 |+ \3 I5 C1 k- T6 n, V
;;
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
* z: D/ F# e! n, J* |[
6 t, _$ r* G- H0 Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( x  V3 Q; Z$ E4 f6 m5 K% Wif (trade-record-one-j-l-len > 3)
+ t! \& k4 N. A8 H0 U7 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
+ F. ^# K& R5 p0 x" A+ jlet i 3* _+ {5 H& H5 t( S& d, z
let sum-time 0" s, r1 I& S4 \7 S
while[i < trade-record-one-len]
3 i+ S/ r) A/ g/ k- I. e% b[
: B6 ]- s! s) B$ f; ^set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* d5 V* Y" m1 G! f; Z( P
set i. ]5 e" u2 e! D; V
( i + 1)

/ l0 ?: |' I1 f: |6 p]0 i' @: B' k* U5 H( C* \
let credibility-i-j-l 0
3 k! w0 L  C2 t$ X1 ?9 v;;i
评价(jjl的评价)5 d( R' S. q& g! X! y4 P% Z0 V
let j 3
7 N% Q6 B( G7 ]" y2 N' A7 _6 glet k 4
  j2 X. c- [& Y' P2 xwhile[j < trade-record-one-len]! p0 O& N9 z* j2 \0 A; l$ U/ m; q
[
# F9 L1 {) E4 n  ~; g  {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
  S5 d0 W$ Z) q7 cset 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)" z/ }! }; J7 u4 T6 n1 Y' `- e4 w
set j
* \5 x: d4 d5 Q$ y; k9 U* ]( j + 1)

9 P! I9 n0 I: g6 ~]
2 U3 {% }% ~) C2 i& ]  Jset [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 )): G, a( P. J; k8 r
9 A2 ?$ A% A& x
. V# {  Q2 p: s& @
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 v; m. K. X+ X( ?$ {
;;
及时更新il的评价质量的评价
' u5 J  H" n7 n. i: C- }# Tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 V* f9 X: J- m# t3 X
set l (l + 1)
2 ~& l, {# n: o4 D, a7 A5 N" `( ?]
4 m9 K; g: Q, p" send
: t' p* _0 a+ l! t7 L2 v; ^
1 @$ N2 t" O* C7 h1 ]to update-credibility-list5 |$ i  P7 j6 K0 o
let i 0
, a& j5 c- f5 o) v; j) T2 Rwhile[i < people]5 y) R7 D  y0 f
[
5 x" [( a$ |" d# Alet j 0  A& U8 r  S! K& V
let note 0
# M; a5 [. ^* K0 R- _& E# zlet k 0
- A* R. [, l' {# D* @9 I;;
计作出过评价的邻居节点的数目! @$ w- D0 X; m, D4 `2 q
while[j < people]
" K  W, ]$ m" k" u[
1 B  Y6 G: M5 _; y) Mif (item j( [credibility] of turtle (i + 1)) != -1)( B" G5 F1 O" L3 L+ ^) E5 x. l( G
;;
判断是否给本turtle的评价质量做出过评价的节点
5 f! m) b4 R1 `2 O[set note (note + item j ([credibility]of turtle (i + 1)))* f/ P2 J4 Z- t
;;*(exp (-(people - 2)))/(people - 2))]
" o( h, T( i: m% l& E6 A  |* G
set k (k + 1)
! r2 R! Y/ I( {2 W]4 S, w. D( G, M8 L9 w3 g
set j (j + 1)
+ _! o+ A! K" C! c  Y]2 |' G; D6 c0 V5 N8 I
set note (note *(exp (- (1 / k)))/ k)) G. j* Z9 ~$ ~1 b6 q
set credibility-list (replace-item i credibility-list note)
, Y* \* Y+ u" uset i (i + 1); V$ I" h" P: x3 T. z8 f
]. J- k7 k! v  t0 u
end
1 h6 P& y& s, J; o1 A# A; Y9 h; ^
to update-global-reputation-list$ A8 {7 a4 x4 X: Q6 n* _, }" o
let j 0
. I  a* p3 K8 u' M6 t" u; f) x" hwhile[j < people]
3 U, O4 I* |$ w3 b; h0 Q/ |[
( j& t% s9 c/ `9 m' flet new 0
( i) b$ s" H# i- a* s: }- u;;
暂存新的一个全局声誉% b  {) R' K# ^' @6 w$ F! o
let i 0
. R1 r: K8 S$ b+ ^1 C- xlet sum-money 0$ m8 P% X7 c) A8 i7 n  Z; n
let credibility-money 06 O) M5 t6 I" O
while [i < people]9 D9 _. _8 e% K/ H
[% {/ P" ~) x" b3 b" i
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( H! q5 {, H" |set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 c& S2 T$ N2 \9 j
set i (i + 1)$ O) W  y' b, @+ j, q4 i9 x2 R
]0 C% @0 n/ ~% [& {
let k 0
* k0 x6 \: ^* g# K. C5 D/ ^, ulet new1 07 ~+ A$ {2 w; C  o4 V) a" e: ^
while [k < people]
8 r5 Z2 ?; h$ C- V; O9 m" a[
3 w) J$ l, c. m; ~7 l7 w0 Eset 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 Y9 O+ ?( D. S, R8 {8 Uset k (k + 1)
" p4 J3 W( f! P0 d7 L]
4 T" ]' S8 E2 V- Uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) B3 X; r& L; G4 qset global-reputation-list (replace-item j global-reputation-list new)
1 E! n/ s/ S1 d1 Uset j (j + 1)
2 x! j8 L; E* E5 B' b]
/ e7 c9 `5 m' Gend0 A  {9 p$ o+ ~; a1 z8 v
0 c9 l& p4 _, R) g% ?1 V
/ ?+ W6 R- |/ b  o! }
: t  K) Y5 B0 d) q
to get-color
0 ?; o5 L2 Q- g8 q( s" D8 i* C! H6 h: B3 w
set color blue
: |1 u7 J7 r7 L& h, ?$ T
end% F! \' B% [0 B6 B2 k
) c, t9 Z4 }: k3 c
to poll-class
5 \) _. H" Q2 }( ]0 P- z! dend
9 ^" A6 ?2 h" f' Q6 Z5 W* C" k( x2 E! O$ d
to setup-plot1
: \7 g/ k2 s" |. J: l0 j6 G5 Y1 ~0 y# a- T5 v
set-current-plot "Trends-of-Local-reputation"

) D) Q, K7 f. X+ U# ~" }$ i1 M* ~# L5 f' _! Z( @
set-plot-x-range 0 xmax
: U- g- E$ k% X  i4 {
; r) k2 l; s* H8 J% |  [* ?8 a. |! j
set-plot-y-range 0.0 ymax

) s. o3 T. u8 q- H6 K8 H- Aend
0 i: }/ w: R% _- H
) i' r% ~* j. g: B' I! ~7 {to setup-plot2; {! y% T. _& d5 s0 Y1 ^
4 x8 V# I" S  I2 H4 z
set-current-plot "Trends-of-global-reputation"
, W) ]! C" D; O/ K1 b

. a) V$ a' Q7 ]2 f7 @2 K) xset-plot-x-range 0 xmax

2 ?/ C2 Z7 M8 p0 K% x  p4 I( @( r' W" ?! X$ O( Y
set-plot-y-range 0.0 ymax
8 l3 u% s5 ~9 v, V+ Y+ a
end
) _- A# J4 A$ W4 R+ M+ L- W9 f$ _5 E  [' J4 W- C. h# A
to setup-plot39 o$ s6 B: ^1 V0 ]: z
) k* F$ X  J/ ]( F
set-current-plot "Trends-of-credibility"

6 o. F$ z/ z! _! d% p; `% D2 u( [* I* K2 P1 j# H
set-plot-x-range 0 xmax
  E! q" b; A7 g0 A4 N
8 c* |4 X3 h# R8 E
set-plot-y-range 0.0 ymax

# x  f; ^. Y7 U+ p* a' Vend
* g9 F! j4 E2 u  i' f# w) n. ]5 O
1 X, C% W' l1 v9 jto do-plots
( D, s3 u# t- Y, m; j& ~9 w$ s: Kset-current-plot "Trends-of-Local-reputation"
* k4 v+ D+ |5 `8 p! Rset-current-plot-pen "Honest service"
$ C  R8 U$ i2 }; P; a' Send5 K& q! }3 p& m, n; d
) b5 @' g( W* T6 }. Q6 s
[ 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.6 C- T& X) @- s# P

. |* \) s  k3 F/ x5 ~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, 2026-1-11 15:55 , Processed in 0.030249 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