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: 17566|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 J( \/ d, P( Q: N' @to do-business
& B. f# Y' A3 H. s. d0 w rt random 360( z; q- w( K8 g8 r, s4 i$ C% ~  _
fd 1  X% W9 [( w: y. L( B
ifelse(other turtles-here != nobody)[
1 P' t9 I2 b( m2 ?. u: o! _   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.) P+ K3 X( ]7 q4 R8 L
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    % {% ]; Y1 o: ]6 J! q9 b
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
- D2 V5 Q% H. _4 s6 T+ w   set [trade-record-one-len] of self length [trade-record-one] of self
/ C. r/ o6 p! k$ f6 \+ V. p! Y) O  t   set trade-record-current( list (timer) (random money-upper-limit))
6 [9 d( T5 x5 }6 i; X. t1 k9 M- m$ L# [4 g6 p
问题的提示如下:# B& h9 I( W7 D

2 N, D6 Z) n. werror while turtle 50 running OF in procedure DO-BUSINESS. L( h0 j3 s3 E/ \' P3 M
  called by procedure GO
; J) p2 \% K0 C+ e4 L% ~, lOF expected input to be a turtle agentset or turtle but got NOBODY instead.
, @* Z9 ^2 g1 F, I) |
(halted running of go)
5 k( j4 D; S( P
, h  U9 d' G1 |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~~; `% s) U, i0 C# S- R+ j" X, e0 \
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
7 G4 P# h2 ~+ [# T% eglobals[
. o( s9 F1 l* B  t7 sxmax6 M7 B; A0 s, a
ymax* u; q5 z" t4 T  ]0 C
global-reputation-list
3 F9 @) Z4 p4 P
( N" M$ q3 P2 m( ~. W. k;;
每一个turtle的全局声誉都存在此LIST- i* ^6 @, R; d- w/ b8 X4 A/ R3 T7 `
credibility-list% c% \8 G/ P  \7 F+ J2 u0 T
;;
每一个turtle的评价可信度
2 I; k" B# q/ k+ a+ Hhonest-service. a+ K3 a; B7 x3 h$ W( [5 e
unhonest-service
! v* x/ H0 f' o# m! B8 i8 doscillation
) T0 `: \5 E. |rand-dynamic% S; X8 A, U/ E: X5 a; C
]
  N5 f5 @0 ^# j$ G7 H9 v/ x: R
. Z' S3 j* C0 J3 A* ^6 v4 mturtles-own[
2 d3 ^1 e! Q9 w; Otrade-record-all% V; F: z9 O% N7 G" Q" N
;;a list of lists,
trade-record-one组成$ m' T2 d8 G0 ~5 L" z: l
trade-record-one* m: Q3 k: n* J  P1 ?% C6 @% k# Z# S
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录# \* `8 K' H( T( R  k$ @
# N; }# J+ l% I! h$ g1 P5 p+ R5 r
;;[
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]]0 h+ q# v( F0 f! @$ |- n
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]
6 @) F$ w6 E; R, Qcredibility-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
1 l- K3 Z3 H- n7 jneighbor-total2 H% P! `4 G4 g1 p9 [
;;
记录该turtle的邻居节点的数目7 @4 y4 i+ F+ b& m+ J
trade-time2 t% {& i9 M2 H3 R% E
;;
当前发生交易的turtle的交易时间
8 `6 Y. X7 [/ Oappraise-give/ ?+ I- [+ o* o
;;
当前发生交易时给出的评价
3 H; G2 B( a3 k0 H6 ]2 tappraise-receive
9 W3 l' B+ }& B" W;;
当前发生交易时收到的评价
! |) \) i: D; Vappraise-time
$ m' S  @8 F" U; J: `  c0 F;;
当前发生交易时的评价时间
# v- P1 c+ u& g1 x; blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ v/ [, X0 @$ \6 N& Atrade-times-total- d6 R% q' s7 q/ S& U$ Z# X, a9 o
;;
与当前turtle的交易总次数: [+ b  Q, Q! a. r9 J0 ^+ u; ?" `
trade-money-total
' O2 ?" N- o: I# O& e# i;;
与当前turtle的交易总金额
* p) |: f) S# p# H" R3 elocal-reputation8 u% U: l2 w" f& t: I6 q
global-reputation) E" ?. A4 B- |  R- _
credibility
0 q5 d% ]8 Q3 V" _% u% D- q;;
评价可信度,每次交易后都需要更新9 ~$ b8 _& O" H2 D0 x
credibility-all0 ]- w7 r8 O1 l* F, ~4 F/ ]
;;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, M. b/ ]1 r; o7 M" O9 Y
. T2 ]6 w$ r+ s- P" V, P- }
;;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  ]9 C" F: ^5 {: V' P! ~
credibility-one
9 N5 F& K# {, X5 T9 L1 Y  P;;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, x7 W$ e3 C5 T. A: @
global-proportion
4 B. m" o, |, x. B+ I6 Ycustomer
* F' j2 x% T. G+ {  B9 ncustomer-no1 }) Q6 b  h+ r% L
trust-ok
. W9 E6 l" [& D/ S" H# gtrade-record-one-len;;trade-record-one的长度; ^. q$ }" y5 H
]
* ]* X  w8 Q7 g4 |. _! H6 W
6 o7 l4 m. [* G' p9 ^;;setup procedure
; b; n: l, \8 V4 {- C
/ o6 i1 T+ L$ `2 Q+ pto setup
" X$ k5 n  `2 s, R) h( _6 O1 ~3 Z; G7 ^! Z+ R, H, j: t; O" m7 H3 l8 q
ca

8 D7 p8 s2 J$ D% O4 o
3 {7 m3 q. c: J1 Y' r) Y4 _: k; Ginitialize-settings
" R4 L5 h% n- f2 M

9 X( {8 _+ m8 b* Z1 }/ scrt people [setup-turtles]
. z6 ~( X  n, d/ ?2 T. P

' p# H6 w3 N  W5 {6 t0 wreset-timer
& x% S2 b; g! o9 G( v0 t4 \+ J

( a. N0 W  X: T3 h- Apoll-class
5 o# l+ J2 t, c1 P+ u
! |) u; E: G' W  p. Q  w
setup-plots

6 ~7 b. e# O$ B( L* y# s. J. N8 n% l4 U$ ]
do-plots

; G4 ]( w. q3 |' Tend# s% \- m- a6 a6 F& u# j
1 {) Q+ n9 Z  l6 C3 h. k( j
to initialize-settings
( a4 B6 q4 V/ B, [
! \" }2 K/ v3 d9 X& kset global-reputation-list []
9 |7 J" P/ Y6 R6 b4 `( w' \1 L

+ D5 A0 @" L0 Sset credibility-list n-values people [0.5]

& R8 z* T5 L1 Z5 |! n
. T1 l; D2 S. F0 {set honest-service 0

+ b6 Z- A" G0 U* T+ w; A( V5 A: L" m3 ]; Y' ~
set unhonest-service 0

; n' u; u+ _* H+ A. L/ ]5 I$ `
& w, v* Q0 B4 E7 s, }; vset oscillation 0
" ^) H3 m! H& e6 {1 ]

& H: \9 L0 W! ~1 Gset rand-dynamic 0
8 ?% y0 m& W# G% m; t" o
end! X, i5 A) b6 l( A/ n3 n

+ u8 C- W- s2 k, {" @& E& [to setup-turtles
4 q% f3 S2 a6 S4 }/ z0 g! kset shape "person"0 Y. g# ~" Q! t! ]3 @$ R
setxy random-xcor random-ycor+ w/ ]1 W2 L  m; ?0 c
set trade-record-one []5 B; Q' O5 f; p8 U

0 O: ?7 L( d$ ~: J, k! L; ^set trade-record-all n-values people [(list (? + 1) 0 0)] - ~9 y3 R& V1 C& j

! B$ x+ _8 \7 N2 \! x7 dset trade-record-current []2 ~9 O7 K& _" J1 P
set credibility-receive []
" j9 S. q9 t5 l  ?; G: ]! {; \( ~( |) @set local-reputation 0.5: |$ w& z* z, i( V* Q/ g8 v# n9 x
set neighbor-total 0
4 l. d3 n# Z2 F( x; Cset trade-times-total 0
" H; ?1 j# f% @set trade-money-total 0
% [. G, ?$ k/ Q- A  T# rset customer nobody
" B/ c: ~1 q; y( \2 d' O3 E) F8 F) @set credibility-all n-values people [creat-credibility]
% }+ X' s4 S& a; qset credibility n-values people [-1]
8 x' H, Z) [# o! b) R" R, Yget-color" @# G* d% A' y/ C

1 O+ I" B8 j( i  K: l: a1 \end% R% K; F5 F1 L  `0 h
1 }8 o4 h6 I' |
to-report creat-credibility5 M  e3 M7 c* O8 N# T( D7 Z* ^
report n-values people [0.5]5 ~4 ~: V5 c+ F! q. b0 s' v
end7 ]7 |. A: C) k1 A
1 D" G& d$ Z+ {2 s- `! h
to setup-plots
. o; `, k9 _) u2 r6 s7 A; D  ?2 P- z: }3 C* p. e5 |) F
set xmax 30

/ h7 Z4 Y7 I: U/ {" c6 |$ s+ X' U/ O3 O
set ymax 1.0
2 V, Y" _7 {( g8 t; w0 @
  w( V: D3 J" _  _$ R. a6 K8 j
clear-all-plots
  Z: q0 t/ w; D

5 ]. U% W& |2 e1 \. e% t, Q9 D- Bsetup-plot1

8 E, k+ t/ S2 G# g0 H
  I# u, @4 K: Y5 Asetup-plot2

. T+ J" v/ q8 Y: N
& b- x. I' o; K0 Xsetup-plot3
7 P/ m0 _6 Z) E) x& h: A
end
; y; J# J  Z6 t  P
/ B7 p" @/ r4 `& q( @+ [;;run time procedures
; R& `5 H1 ^1 R* G2 b. H+ U; {/ R8 v+ o
to go1 j- Y4 W# _) {( l0 K1 P

' P9 x4 A8 k( h; V; Nask turtles [do-business]
3 }9 U- `( C2 J+ F. C2 C  [" G1 l
end
# Y/ H2 J; t3 [2 l& i( p1 c% {0 r/ k
to do-business 6 |# R3 x8 s  n

) }) w) B* L: l" t5 g/ P( j! b+ n
rt random 360

8 ~: b# a3 D: {6 U' E
5 `  e7 U- N6 y$ I3 _: _fd 1

+ ]7 Y  g( A9 c& @) _$ c; A0 y
& g8 V% j  ?' Q$ e! G& V  [: X) yifelse(other turtles-here != nobody)[
! s. }, c* ^& z' |

; @: C1 z$ i" h7 p2 M0 ^set customer one-of other turtles-here
. d1 I' D; {9 ~. i) `4 H3 O

7 v3 H! l& m0 t" g& ]+ `% U;; set [customer] of customer myself
6 ]9 H% f* i* u+ b5 @, X6 A' F. [. L

) o7 Q& Y, _5 n- W3 eset [trade-record-one] of self item (([who] of customer) - 1)
  R$ H0 D5 a* g# B0 Q* p0 [[trade-record-all]of self
; a$ B$ g0 L3 n# Y8 Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" Y7 b9 P* o- D, x# _) b3 M

, b& R$ `) [3 ]/ kset [trade-record-one] of customer item (([who] of self) - 1)
. E# M. c6 G' T' |$ _9 r( n) {/ `[trade-record-all]of customer

4 I) b$ x$ `- r% j) j; @, P( j
8 @# g0 o4 `  S! E* D; t" O3 }set [trade-record-one-len] of self length [trade-record-one] of self
' D- [1 s# f& }7 a- W4 E5 m
0 p. X( Y, b4 j" g& W
set trade-record-current( list (timer) (random money-upper-limit))
1 ]6 m* j$ s0 g0 j1 D! \( u
/ X0 M. v% X& X: m7 L% t- D
ask self [do-trust]
8 d# P6 k) ~& V* `7 y. p;;
先求ij的信任度& ^( x5 P* u6 t, ^+ O

! [6 ~3 M. a1 L7 n7 X1 iif ([trust-ok] of self)
3 V8 X8 ~  ^0 l" }3 d- Y% L, j& |+ f) V$ S;;
根据ij的信任度来决定是否与j进行交易[2 f) L6 }5 g3 w
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
7 S( W6 C% m% N% S* ~2 N
( P- N- K% ~: G- F[

8 ?, O5 r$ a% q' m2 o4 X0 u8 Q# {5 V* }8 C
do-trade

/ L# i" f9 k) J* Y8 C
$ l+ f4 a0 P) `0 O$ v1 Wupdate-credibility-ijl
7 h* t$ Y# a1 M3 i# Z) E- p8 W
* E8 s' T7 o( w. ]3 n& h
update-credibility-list
0 T) ]/ R7 @: W: I4 p  E

3 x2 h. d$ w; g' b! ~4 K/ S; ^, `% W+ B, D7 @4 H; u$ d; ], ^
update-global-reputation-list

! \* O% T  `) y+ L2 w( X
/ m( V; O. S8 T( P/ Ypoll-class

( E" _+ n+ e- v: v, N  \( N# m4 ~2 F. ~# n7 V& U0 M4 b
get-color
1 G  {3 [0 N# Z6 D

! I6 p7 ]* B4 [+ N) q]]
* n* q  t: h7 B& o, n2 r! B
+ T- d5 X9 |% H;;
如果所得的信任度满足条件,则进行交易. d: M5 i- J' F/ M

9 @8 r! r0 v+ i( X( U[
! {/ n% _5 F) F1 w' X4 V

+ T7 N5 J' e% n# {" A$ P% Ort random 360
2 w. ~3 l! {/ W- Q2 _3 N9 `* a6 w' @
# P) U! q; w) @
fd 1
; L6 @/ c+ T2 \+ x$ z
3 L2 |- d% Y. E) s  D1 Z6 v
]
+ q8 \; D" u+ E8 v6 l* e8 r
; V4 e" a( o! n( i/ h3 }+ Z
end
$ w6 j; s5 P$ d. W
4 T. c! M, {6 b3 a+ f( h
to do-trust
; q' p6 b7 F9 U3 K5 _. E& Fset trust-ok False
- n! S$ _8 t- [& x* R6 e/ |5 Z# Z  A2 E5 ~  h  E

7 [0 R' T! X& n" Clet max-trade-times 0) s9 I; b% ~3 O  y: D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ Z& C; l$ w6 }, P9 z/ G6 [
let max-trade-money 0
/ j  v" Q8 P7 P8 J6 w) x9 ~; Wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 U8 |$ ~4 `- b9 T0 Z/ _
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 f4 i9 O7 B8 r& G' \* l: A; g1 ^) v5 m/ t+ |1 ]' k! ?3 c, t9 c5 T
( \& ?, K3 H) G% V( z. }
get-global-proportion
2 x; H* z, I) C- N8 O& R4 Alet trust-value; ?; \  X  o1 f( \# i
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)

% b$ R7 i# G4 A+ [& x1 c8 v" v. ^if(trust-value > trade-trust-value)6 _2 J0 p7 Z8 k. T
[set trust-ok true]$ W" {0 u  `% a# T- M% a6 i1 X
end, o+ G' v# h; q5 B( Z# d* U
: I+ s9 z3 q) A& z) ?9 R
to get-global-proportion
( y0 g+ D0 F. C; G4 T+ P3 T4 j' C1 ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 @' Y  Y( }7 d+ v[set global-proportion 0]
+ {$ Y& X/ t$ I! ~[let i 0( Q# T: K1 t) h3 c
let sum-money 0
4 B7 K4 b! A, iwhile[ i < people]  e: g" k# Z5 t) @0 m
[
2 {1 F  ^$ ?- d; m  Z) fif( length (item i
6 n" k) m1 y+ R4 L0 s[trade-record-all] of customer) > 3 )
) B6 ?! O0 p. g; ]( b- ?" \
[% {2 E+ f- E4 T. s+ T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 o+ `0 ]( k$ y' ~! ]]( j: i) C4 p3 R
]
6 y4 b; e8 S' ~, B$ v: W) i7 Elet j 04 w) ]* q3 S& c2 f+ E7 x
let note 0
; w" ~  p( Y& ?1 e% L1 [# Q' gwhile[ j < people]4 q" G7 w# {" G8 ]# D0 r) y
[5 j' \, p$ B% B3 v8 c" |
if( length (item i1 I5 x  z) z: R: _6 Y& S( P
[trade-record-all] of customer) > 3 )
$ i  |+ n, w4 U. b: {
[
6 q5 u) Q3 W% b' k9 J* wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 Y" P3 M# i( K, V[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 J7 d8 z! A% _) S. j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) m5 ~& [4 t: l7 ]/ z: B]! ?& J" n/ n+ }. h0 ^7 h) m
]
& W, l& q! {0 m8 t% L4 ]7 _' Nset global-proportion note
) e* i7 h# J1 j  \0 ]. }# H- u4 n]
+ {% ]  L6 Z0 b5 H$ j. yend
( v* ^3 j9 G" c1 K
9 s2 x1 ?1 @1 g6 h' Nto do-trade# m3 F! R( S( ~
;;
这个过程实际上是给双方作出评价的过程' I0 m1 H0 o' @8 B) N
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价" t2 B7 ]5 O" ^: P' }
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
5 f* k. j7 E6 p/ c7 ^0 \7 H; L) lset trade-record-current lput(timer) trade-record-current' E. L2 R+ A2 c  R- Y  }/ R
;;
评价时间
" \( b3 p: H; a8 H9 fask myself [
. Q+ y) D7 K$ J; Mupdate-local-reputation
9 c& l( W2 w: {% O! {% k9 f) Rset trade-record-current lput([local-reputation] of myself) trade-record-current
  L# c9 d7 J9 S+ q) Y) m  k]
( F% ^3 m% g3 f. ?/ ?" Aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 S' Y$ g) n, \;;
将此次交易的记录加入到trade-record-one4 W) I* L+ o! b/ g0 Y0 Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, I9 b" L; y- L0 ~, [2 @let note (item 2 trade-record-current )
# v0 }6 B; |, K1 p1 ^set trade-record-current
5 A& f! a( Y9 \; g0 Q) ~(replace-item 2 trade-record-current (item 3 trade-record-current))

; ]* b) P' ~/ B5 K, r8 }, E0 Aset trade-record-current
0 B* Z. v, Z4 v8 i; D(replace-item 3 trade-record-current note)
6 n, I( t7 q6 z# r; _4 B( X5 e, e' D5 D3 V

3 Q& t" m4 m% Z' ~# ?ask customer [
$ H5 T7 c9 N& _8 b6 U- O, J. |update-local-reputation6 U; \% Z" z# {) a. j
set trade-record-current
: d, j9 F+ ?8 n* Y1 c3 d(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

  k) M& g9 q0 H. [9 h# Y6 O]& P  n$ ~' `( g1 q/ ^+ F8 C; @/ W
, }7 m$ g& J& R! p' v6 T
1 A& \, J' C0 E5 p3 @
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) K1 _8 g( u3 u

2 z% }: H6 B! H/ W+ E% Z& rset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 S/ E( k# ~8 T' {
;;
将此次交易的记录加入到customertrade-record-all
1 D6 L) g  X& Y* u. ?" B9 l9 ]end+ }% }. n' K, n: H3 u9 C6 T
( I9 H& e/ i* m( J; m3 P
to update-local-reputation
. G( ~) L4 q* j! Sset [trade-record-one-len] of myself length [trade-record-one] of myself8 X2 i8 m2 ~. C8 l( V
- H3 l$ G- X0 t- A4 p- z
) U! {: F5 m, N2 z4 n" w" i3 @
;;if [trade-record-one-len] of myself > 3

, c3 Y: s4 s2 ^& Wupdate-neighbor-total
' ?/ U8 V, q6 o# @% l  B8 o;;
更新邻居节点的数目,在此进行
- }4 ^4 v, z7 p& Ylet i 3
0 L) D1 N# ]+ v7 ]( Wlet sum-time 0* A0 w5 C. ~0 l5 i
while[i < [trade-record-one-len] of myself]
3 b" c6 D$ {- F6 \$ O: t[& K" P) n; A$ w* w8 w
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' ~6 p  X4 ], W9 n- j5 H% k
set i) ~% N  x5 u4 k6 @0 |. w. S
( i + 1)
7 |  K8 X% \$ z0 _
]
: v  K$ l2 U& C7 w/ V$ glet j 3
: ~9 M  |6 U& Tlet sum-money 0! e2 c" h5 X& ~6 ]% ^, v7 i
while[j < [trade-record-one-len] of myself]
/ c( `9 d. ?9 k, d* w4 o+ `- p[
* X* D7 R: I) n) C& sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& g) {  Q  e2 L3 p: C" \set j
$ ]; `# u% n1 K" @! j, ?' L( j + 1)

  z7 [3 P/ t: N# z/ F+ Q: ?! o8 F0 j6 V5 ]]7 ?6 Q* H6 j9 Z$ _* s
let k 3! q  N- K2 k) M& ?/ i5 u, T
let power 0( a! D* \. M! W0 U! m2 [" n$ T8 G) ?
let local 0
" y/ T) k' C) B7 I1 \while [k <[trade-record-one-len] of myself]
' a+ J% r* t& k[4 f5 {( O' A% u( e2 P4 M  T
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) # C9 Q/ U/ m+ e  r
set k (k + 1)4 ?8 ]/ F1 Y$ {+ A5 [8 F
]+ r. v- F: F, ~5 |5 B* h! @
set [local-reputation] of myself (local): t0 U3 D1 `$ l2 u4 N
end
6 J2 ^# T+ Q$ H) g/ `/ E  V" E6 f% S2 Z
to update-neighbor-total3 B. l+ ~: c! L3 h7 N, R9 P

% |& T+ s- J- B) s8 C! Uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 o9 K$ S' a4 L9 z* A' X) h" m) X( N  N3 I8 F! X, L- L: E" Q

' M  m" s0 P% R" l2 k3 ~end, E3 P4 b0 b  ~

5 |. M' y& }' q; L" V$ z& ~/ ~to update-credibility-ijl ' Z; p; U$ l) ?- c+ z( J
9 \# k# E# d. m8 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。: Y$ b' M1 W5 i2 Z- V
let l 0
% p% M( G2 X* }7 e# k, Qwhile[ l < people ]
# U  ^" F. s4 y- Q" _;;
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0 Z; M  Q: w' V0 \' C: W3 b2 r* ?
[$ M8 e0 y( U4 S, O
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 {* D' w4 p2 {; c' ]
if (trade-record-one-j-l-len > 3)
0 p) I3 @" u' Y6 j% [) j[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
9 S' R6 |* m. Y6 O3 _let i 3
: N8 w3 h6 Z  Y2 o& Q4 qlet sum-time 0
/ N; f) ~; k: Z/ O8 Dwhile[i < trade-record-one-len]7 O# _/ m( E: s/ a& z
[
0 w& ?4 A9 q( Z9 K  Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 ]4 K7 D9 L8 dset i+ d$ r0 q: t' @6 p; ^
( i + 1)

& @6 p7 C% d! M! K7 p0 s]
& s8 ]- p& }/ \- h# K: s0 ]let credibility-i-j-l 01 n+ J: `( M5 [  ^7 W- V1 Z
;;i
评价(jjl的评价)4 @$ m: w6 h! G, c6 N8 `
let j 3
% [' b, N0 O3 \  w9 f* d6 M( ]let k 43 i% C5 K+ ?. }0 q% i8 W
while[j < trade-record-one-len]
% H) B  M: n9 `[
* f" {4 A4 F( u# _+ K, Hwhile [((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
! Y; P% _8 Z+ U; e' A" S" v8 q) u0 D+ tset 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)
# m9 q" Z7 g  g7 ^' \1 Bset j
7 g8 p  V! }2 n( {; k: Z# h( j + 1)

. |$ g& G) a3 x: _' m3 |- k7 N: j/ ^]
# V# |% q% B# ?! hset [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 ))
+ [  R0 \( N( @3 A$ G7 W# X2 |( z- @- T- |
  {( V0 @6 r" P# F+ ^3 @% F
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 ~. `& E7 u7 s2 r9 O6 y3 t;;
及时更新il的评价质量的评价
0 ]# C% s, o# _7 L( Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 c+ a+ U, g! a1 a& i2 o. _
set l (l + 1)
/ Q2 j6 C$ e- E. j1 P]
2 d! s6 Q- s1 y1 k* g, @end2 Q3 ~6 A9 n: q' d3 x
/ k1 ~6 C7 ^# B- q( {% ~( k  M
to update-credibility-list
; @0 @# ~0 \8 V" K; M1 O8 hlet i 0" a7 F$ l3 h3 y* @
while[i < people]
9 m# h% a4 z; D1 D8 |[
( g+ f! q1 z7 I: M- @+ b" plet j 0
- k$ f5 W- V2 q8 v1 w1 Flet note 06 Z9 y+ [. a9 `# U" n- z$ R& p+ X
let k 01 I6 A/ ^+ g8 ~( i
;;
计作出过评价的邻居节点的数目* K( V: J. U+ K* b
while[j < people]
9 Y6 o1 Z8 L4 J[2 G( Q% l  R6 f' ^
if (item j( [credibility] of turtle (i + 1)) != -1)
- ^, A+ L: P9 ?& U4 n;;
判断是否给本turtle的评价质量做出过评价的节点
  Q) K4 H$ g2 ~( @5 ^0 T' s1 C[set note (note + item j ([credibility]of turtle (i + 1)))
" g% U4 E5 T9 r: q) x$ w  ?;;*(exp (-(people - 2)))/(people - 2))]
+ F% F2 N+ e# R7 X/ v3 j
set k (k + 1)
9 E* K9 W' n( J1 i, k2 e% m]
5 h/ f, l% b. r: cset j (j + 1)
7 }! X  Z5 Z: w* c1 r# F1 ~]
1 S' k" b. }5 B; t3 a! D" g4 Lset note (note *(exp (- (1 / k)))/ k)8 M. |1 i% B- H' p! J
set credibility-list (replace-item i credibility-list note)2 Z: V! a* X+ t1 ~; e$ m( E5 O8 a+ A
set i (i + 1)* Z0 E; k! K0 t. g4 o, X
]
- Y$ b% n3 s* U% R' [1 eend
% k# O+ L7 `# ^2 d4 T  h1 w+ h4 q
2 ~& V1 J. P* T  v: h# t8 @to update-global-reputation-list* b/ `  O+ D( {+ f1 o' `
let j 0
" h; y+ o& |/ B( ~! p; l9 }while[j < people]
: }, ~# {2 J0 C, F# c[
. f( Q$ N2 N% plet new 0
& b$ v8 Z! D: m! Y8 {: B: e" [1 o;;
暂存新的一个全局声誉7 O# p+ I5 [3 _
let i 0
% D) l, S/ Z- A, n; [; e% Zlet sum-money 0
  A- K# i" E' q- [/ h* Z# \( V, |let credibility-money 05 A4 G3 b% X0 ]8 h
while [i < people]
4 V1 y8 u, h# M- }/ n[
" E9 P0 H3 C" ^' Jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# f3 t8 H4 J1 V" s' M  Jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 m7 Q3 ?) B9 c: y) P2 f+ ^' \) tset i (i + 1)
! X7 |- |) X( p" G. X+ I]% y( E, m9 J; ?" G. t9 f2 H4 d9 Q
let k 0
9 ]+ p* z. M* g: m9 Q( Alet new1 0( ~3 c1 _; j- a* N
while [k < people]! o* x, U* f# |( K9 N8 s3 y# @( Z
[
  ^/ q% s: \3 b/ |' o/ N+ y1 Bset 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)# [/ t5 F! |! c- R9 j9 }9 |
set k (k + 1)
% l6 N( t( f. r8 z- M/ s]
. h- c% ]! ?* O, V6 eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* \3 e4 O; i5 M1 V! eset global-reputation-list (replace-item j global-reputation-list new)2 ]' M5 }/ z. s. e1 ^
set j (j + 1)$ ^$ y# }+ L/ b* z
]  P& b/ N' ?' ?! O$ t9 R9 o! ^
end& ^7 ?% ^+ q0 m+ Z1 c2 L' C

. F; \1 Z4 ?3 u- k$ @6 X6 D1 Z
7 S6 ~' W9 k. Z. t% L7 |9 P  T9 n, V" ^
to get-color
9 f6 ]* ]& l( w2 {  H$ \  ]/ T" ], t# H" N0 c
set color blue
" r* K- i5 s' ^5 p( B
end
( b8 e. m! T1 y: [5 K) `& C+ x. h
+ U. x5 r, j  w' O2 O' V( Y* Gto poll-class
3 x$ t+ b4 _& k$ p  J- d* B4 I# rend  I- {) p$ o+ r

9 L* w& s2 D9 ~6 y2 eto setup-plot15 |: h; H: ~& q/ E3 i* I3 k" A# \
4 T/ N6 f4 z5 a# T( B, E/ B
set-current-plot "Trends-of-Local-reputation"
# O) ]; b' M2 w( ]: }
, I  [7 n* s8 B6 i. u' \: ]
set-plot-x-range 0 xmax

, I" y. c( R' [9 P- h
4 L3 x$ K& s5 [7 cset-plot-y-range 0.0 ymax
2 t/ q2 f- m2 Y
end
( t6 ], w; i, k! P& p) C6 L4 j' d
to setup-plot2- y. }  s3 c7 e+ m- _) y/ n

; c# Z- S# t3 [) f" m. t4 Q: Mset-current-plot "Trends-of-global-reputation"

; ]9 L* {3 C! B+ w0 g) \& V3 ?/ k0 e  O; p0 l" o) h& Q
set-plot-x-range 0 xmax
& y* I2 a1 x1 _& u. `$ F2 ]* ^& }
# F- L! x. @! F# t; B$ a
set-plot-y-range 0.0 ymax
# M) A9 B" W: E. B0 b% B, C* ~* U
end3 X% x/ U0 c9 _$ Q( y
  H1 t" K* ^2 e* v& N
to setup-plot3( w: J" U4 s3 d/ _/ S+ j9 x4 y
3 G8 ^5 n; ~! N+ K  N
set-current-plot "Trends-of-credibility"

. ]  Y# n+ l# A9 u( l& {( L# `  ~
set-plot-x-range 0 xmax
+ Q; [. [$ }/ Y) E
& C) p1 D: s# m5 n" Y0 F
set-plot-y-range 0.0 ymax

7 ^4 D, ^3 K6 Cend
" D5 E/ w4 c* E! L) y
$ ~' F5 i# u2 I$ oto do-plots
& G& L- v; R# v6 ^- vset-current-plot "Trends-of-Local-reputation"1 B2 [8 D: {! S: n7 b" j  P7 f
set-current-plot-pen "Honest service"
. h; Y0 d! R( t; mend% f- Q2 L/ h9 i; _+ W, l3 k

7 u7 x( y: I& M0 ?[ 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.
/ t* h# i( A; n5 N% W+ U8 p3 _7 Y! q+ U  m+ l
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, 2026-8-16 16:57 , Processed in 0.021801 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