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: 14356|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:
; F1 f4 d# S' Z6 }8 Y5 Vto do-business
% H4 N+ t1 \- B/ V. \- C. T4 m5 c1 r3 G rt random 360
. j4 Z" p' k1 u$ ~% n* ] fd 1
/ `  ~8 ^# R% @, F3 I3 H' E2 I ifelse(other turtles-here != nobody)[3 Z3 I9 K( D: w9 q8 e# @
   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.
. R  j# r6 s* j# ]: y/ W( p" @   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
$ ~$ c. V6 X5 |/ H/ }' {. a   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer$ s3 t4 U, P, g, _$ u6 m$ D
   set [trade-record-one-len] of self length [trade-record-one] of self
. G( e1 Z0 h" k8 o4 R  s% G   set trade-record-current( list (timer) (random money-upper-limit))0 y# n" R7 S! X# z0 k
$ r9 T  h2 P3 X* ~5 n8 g$ n; \
问题的提示如下:
8 Z9 @! G/ k4 q0 D1 p& P1 v! E* q
1 Q/ V$ D8 D( b4 q6 w; n. ?' u. Cerror while turtle 50 running OF in procedure DO-BUSINESS" P7 r+ Z: y7 Y: w
  called by procedure GO
/ t  G0 {0 A- i4 `) L! }OF expected input to be a turtle agentset or turtle but got NOBODY instead.  y' u0 @1 S8 p9 x
(halted running of go): u9 y( R; Y+ h+ L: H9 e- D
& M! ^5 z$ o3 F5 R9 b4 W6 @
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~~4 S8 \6 ^" C6 R
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" R) @6 C, }, Q5 D* Z9 J# G
globals[
# W% e: R+ }3 c6 o1 Mxmax' u  S) i! e7 I/ J$ z+ S6 p
ymax& Q( _" s# W7 f$ Q4 I+ j; R& K
global-reputation-list! b% x& G' W: q, x; t& O
2 G& R. {( B/ T9 r0 b
;;
每一个turtle的全局声誉都存在此LIST
' c' y) A  G& {# w/ Y3 p4 tcredibility-list
# t  \4 g" e* _8 C8 {;;
每一个turtle的评价可信度7 \! t# h- G+ g! D
honest-service
% e. s8 a2 S/ Sunhonest-service9 L# x* f, ^  i/ ]/ v& }7 b
oscillation8 w, v6 _% i4 r/ c3 V
rand-dynamic6 B, F/ ~: g$ ]+ P5 e& H' N
]
1 X: U; y0 ?5 @' z" k! i2 `9 d/ j9 k$ J4 m# A4 k( E
turtles-own[3 `( Z/ s  i" R1 c- P3 X
trade-record-all9 Q# w- Q2 A& s- B+ P2 H
;;a list of lists,
trade-record-one组成
2 y7 o* z+ a: K8 ~trade-record-one
' s' N! m% C. i: o5 t! g;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录, o/ h4 ]* k4 x+ `+ A3 ]( P& W2 r

& ~" r0 C: Z! a8 @: Y& P;;[
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]]& K) s6 Z1 _! L* p: P) T6 F) B
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]
4 I- S2 a- C" h9 W. zcredibility-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list1 b1 ?/ h7 U% K3 k& z
neighbor-total
0 ]# J) X8 \1 S, W+ u/ i;;
记录该turtle的邻居节点的数目( S5 t5 o4 M( f- D# Y3 I/ U
trade-time! h( R+ t& T$ e9 F$ r
;;
当前发生交易的turtle的交易时间
4 d2 [# S2 i9 ^5 Fappraise-give
" H, l1 e* x! w& r, |5 W;;
当前发生交易时给出的评价- t; \6 f' G* W& w" J- P
appraise-receive8 l& @, v. I7 @5 K  _
;;
当前发生交易时收到的评价7 m3 ^& P9 c) ], w1 |
appraise-time# d) U9 l+ l" \( t* d
;;
当前发生交易时的评价时间
( A4 a: J2 N9 R/ u4 @+ P- a6 wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉7 k/ c2 k5 O9 P2 \3 h5 R6 S: I
trade-times-total1 F% X) s# `: C9 v6 v, W8 q5 i
;;
与当前turtle的交易总次数1 p( S6 c& v% _% @4 l& J
trade-money-total  ^6 `& Q4 Y: x
;;
与当前turtle的交易总金额8 [. B' w9 X3 Q2 m
local-reputation
# L7 b- [. [- z8 S1 R) L( h* wglobal-reputation
( ]$ D% Q. y  t) J0 q" T& qcredibility( [3 k. z' ]4 i$ w2 t# {
;;
评价可信度,每次交易后都需要更新. b3 z" K/ x  I5 w! B
credibility-all# z5 r5 {0 n( E
;;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) I' H# Q5 Y. h% P+ W' K2 c

! r5 V- O* w* y( j* i;;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' f9 u0 [: V& F$ L( [2 I0 v  Q
credibility-one
: b& t$ T3 M9 g8 G;;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
  }+ i; b; o0 N. G1 N1 L# D0 }global-proportion
5 I* l' [# y* f/ F, E; v( Kcustomer
0 j7 X* X7 \; K/ j( Z! E; |+ ocustomer-no
' _" Q- g5 G7 C2 Q5 o: Qtrust-ok+ F6 N% S. v, x
trade-record-one-len;;trade-record-one的长度& v: G6 @* g/ e5 [
]0 Q  ^1 Z# v: Z# s, |7 ^
) w6 P6 o: z6 x) ]
;;setup procedure
& a: E* G0 Z# T! Z
: ?# d3 g* |0 `- ^2 Ato setup1 q  \" [- `8 J% I+ g

* o' [' Q7 P* ~ca

0 C5 h% L+ e1 x3 {- |
' x" z9 d* W: }( x8 y* Binitialize-settings

$ o& }: ?' Q' `) T8 I& _4 C: g' t
: q/ k8 k% K3 {crt people [setup-turtles]
3 [2 t8 {$ f* C4 q; ~
# i# Y, L7 M1 [$ _
reset-timer
+ x; Q- B/ e  Z! P6 Q3 c1 [' B+ T
, ^( L3 J& u, c* H& T
poll-class
$ D' K) E" |7 K

( I) I: k% I' M8 {0 usetup-plots
9 S6 }6 ~: ?$ Z4 T

) H+ a$ ]' r6 x4 F; n, Odo-plots
7 D% \8 M# x- b* g  B
end) Z2 U' N' O. q: g' ?

8 a$ s: m  w7 p/ D8 K  x* j  yto initialize-settings
# s; \  K% s" D6 Q3 U1 @
6 D# e5 i1 k4 }/ R  D5 S- cset global-reputation-list []

# z& n5 c* s. i' Z; Y* z) X% b3 G' l! W" z
set credibility-list n-values people [0.5]
1 y" @* @3 O# s  K! ?6 J
. ?+ `, h% q& N' e
set honest-service 0

( y% ~5 c' g9 a3 s7 c1 Z; m& j! S1 \& q8 o* O' Y9 b( t; e
set unhonest-service 0

: W! Q+ H5 @/ T
8 m& y3 [$ h; P$ u9 j" w$ Yset oscillation 0

! U2 ]1 C. o4 _1 W$ S; l5 q# ~  W# D& c+ W( E- j' ^1 |
set rand-dynamic 0

$ b# A2 [* s3 |- {& hend( u; x2 P3 }5 B* _, ~7 \! ?
7 @3 ^; v' N# U. ~8 @# y8 j
to setup-turtles % l; F3 n% w" c% L4 X- Z
set shape "person"7 l& _2 ?6 g3 f: D: X8 o% f
setxy random-xcor random-ycor
8 u, Y( c) }$ M* [* nset trade-record-one []: O1 P) p! x* l/ v( v% h

8 ]# v5 n+ ]3 F0 W, Iset trade-record-all n-values people [(list (? + 1) 0 0)]
# ^" K; E( T* }: }/ h

# Q/ `; e# ~% ?set trade-record-current []+ o; z3 u, {+ q3 v0 L6 B
set credibility-receive []
5 [0 {1 c; a2 h& A7 m- ]  i/ Uset local-reputation 0.5
0 @: t/ ?& }. ?# Cset neighbor-total 0
% [9 z& O$ |2 {* mset trade-times-total 0! Q1 L7 q& D; G. \! A4 Q9 h7 ~# W
set trade-money-total 0# E" ]) @6 K2 @5 ~% Q3 f
set customer nobody6 `+ B3 A3 Z+ m
set credibility-all n-values people [creat-credibility]
+ ^6 s6 e+ }. c, O- Iset credibility n-values people [-1]
6 p6 P2 P! ]* Sget-color3 E7 `6 l' E. R

% g% P8 x2 K# d' mend) ?. k9 k4 z8 v

# ]" E2 T6 l, g* ]to-report creat-credibility
' ?0 S: y9 h8 J" z2 }& Qreport n-values people [0.5]
4 z& b. L! ?4 ~+ R) o" F- C. Tend
4 F1 n: \9 _& y* R7 s9 S2 \) a) h% ?9 V$ V, u* G2 C# k( c: U
to setup-plots2 i2 ?* w' ^& b; L

; k  n) X+ O( Z1 e& t2 M- O7 N# }set xmax 30

7 Z) Z+ O  G, g$ P$ B9 n" r, f/ C" _0 |/ Z" n, j
set ymax 1.0
% o$ w, ?$ S& [: Q: {
; l6 ^" y- C* R/ S
clear-all-plots

! I4 W  F$ c5 N# l2 ?- j2 H% N/ ]/ C- [
setup-plot1
9 z* {# X, j! v& @7 A; q  s

- S  A' L/ Q5 ?9 y. `- A' \# P- t/ [setup-plot2
; l* d1 a2 j0 x3 b8 R  r: L
3 R* T2 i2 l6 [5 N
setup-plot3

3 o7 t: y+ _9 ?8 G9 S7 `end% z9 `) D3 d# R. e0 m

+ s* R# i, O' ^% w' r;;run time procedures' x. g; `3 \& O- y
# [) i# M9 u# T5 E: C; p
to go! b/ Y% Q6 d/ l. M) L. g
: s/ J3 g0 q  Y2 I2 a" d7 y
ask turtles [do-business]
6 u0 y6 l7 V5 i
end
* t& V  }: f( k# `9 {# c! ~* {$ s$ Y4 ^# X
to do-business
  e) `2 M" u; B/ c. \
( ~* y. a+ o, D; X' j0 M
1 m$ ?5 k7 R8 I. ^
rt random 360
; _7 r, o" D  N0 Y' A( D3 h

0 g1 F1 L- Q6 j/ z1 lfd 1

" F5 _) H8 ^/ P1 k5 e0 v0 n  U4 i  C% I% e
ifelse(other turtles-here != nobody)[

0 _; U  s5 Q3 u6 @
7 L' |4 x/ k, {4 D; V1 B7 g9 j2 ~set customer one-of other turtles-here

0 S1 B' n6 `6 H; G, f. P) z1 w; K4 L) p, w
;; set [customer] of customer myself

2 z- g. U8 g% d7 A, ]2 ^. F$ y3 M3 O+ t" j& p/ @
set [trade-record-one] of self item (([who] of customer) - 1)
1 ^  h7 k% K5 S5 E% e+ I6 V[trade-record-all]of self
5 V- {/ c5 p. `; g9 y/ F;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, ^+ z; ^$ y2 F4 h
) l8 {' R8 Z* |- s
set [trade-record-one] of customer item (([who] of self) - 1)
) G% u0 S6 M; O/ d8 C0 s[trade-record-all]of customer
* r/ |+ a( Q9 t8 r3 E' z. H+ k+ E
9 e3 Q! n# q) U+ K8 I+ N; \
set [trade-record-one-len] of self length [trade-record-one] of self

2 K$ J% n  X4 h% G
' P! \( U: x* {% I0 @set trade-record-current( list (timer) (random money-upper-limit))

4 ~( i. _: m, _# X1 X0 Q+ I# N& [! W% w( E& ]" S, I4 a1 V
ask self [do-trust]
% |8 e+ H- K. V% }; E;;
先求ij的信任度* ^, x7 e# W- u% Z, t$ L
* E& B2 Z0 A. K; E) {) x0 q
if ([trust-ok] of self)  W4 v2 ]! g8 O
;;
根据ij的信任度来决定是否与j进行交易[. G( M, @. _0 o& I
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
  ^0 r" f; E! U
4 b/ U5 }& Z7 U; H3 H/ G- _7 a. h[
& T! c: X3 h+ ^' V  E' c! j9 }' w
$ g/ j7 t) [3 p* l1 G
do-trade

. N5 b6 T% P# a3 ?
3 J1 l; r) E  c) Kupdate-credibility-ijl

# o& [0 {& g* O  |6 Z( n4 T# \) O8 T7 F& A) L
update-credibility-list: ~1 P, i$ |/ o, {) J
6 f* t/ W; q- e  v$ Q! r& W

; K) C7 U8 |- X' s3 }. ]8 y: {2 jupdate-global-reputation-list

$ J, Y! |; K+ O" Z. I' j3 m* Z9 D* T/ X+ a
poll-class
" [1 G! K3 C" U  t& I

6 k  e( L" J0 E6 A, J% b4 M1 m' zget-color
- Y* q1 E; D" ~! N
0 u9 n) h7 O0 z
]]
7 P' k# G$ _; @2 U' w
' u2 A8 e! h5 P8 B7 J;;
如果所得的信任度满足条件,则进行交易
& s) \6 [  I6 y) S0 O$ Q" N$ }
( b  l5 r4 C. t6 `" u) J( ~, Y[
, d6 H9 K( L2 Y) _, V& V& d
2 l4 i$ w# I# n, h) ^
rt random 360
' o  A5 o5 O  m2 v+ H* m9 _0 f/ O

- v) r) }6 U- M( c" _; ufd 1
# a! S4 P1 r( _" q
+ f' H9 m; n6 m$ i9 j  o' P  }1 b7 J
]

8 a% }0 |& C, x1 f6 S8 ^/ ^6 ]2 a6 k
' H6 J6 W; F1 ~& ^" |! ^! Qend
  d+ Q; m# J, e8 z& }
: E/ D. ?, \" O, q! V  }3 p" t1 C
to do-trust 1 e; g" Q$ G/ E
set trust-ok False
8 T% O9 L4 k) P8 P7 r
3 \: y: M" U6 R
: K5 X1 [. U8 L3 n* |- h
let max-trade-times 0+ d2 |! D- p- p+ O" |3 L
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ j* W2 |& H- Klet max-trade-money 0; W! N2 A  s" ^, _0 W1 h+ i- ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% P& y8 Q2 G+ z8 \
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 i" c) V1 U' ]2 c9 k9 o& C' o# ]2 E  O1 m, f! k- S
! q7 G) h+ G" d! p! I4 Q3 w4 `
get-global-proportion
: ^' M2 P+ x; x; x, Y% z5 Xlet trust-value
3 \, A: _5 h1 @/ W, Z3 K" Y$ f1 |) A7 ylocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

5 g5 d9 |3 R" o$ s6 ^if(trust-value > trade-trust-value)
$ x( w$ J- P2 r2 ?[set trust-ok true]0 O5 x4 z- j- S- d3 W+ P  T
end
  T, X0 r0 @( N3 h# G5 x$ O, f3 l4 z, K! @! q  F
to get-global-proportion
' n5 n. T$ y+ }" @; Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ u' C  T5 K- c! s[set global-proportion 0]
3 F4 o, b' o5 T* c* }[let i 0- j( G4 S5 f3 ~. m% p
let sum-money 0
& I% p( E6 v# K  t* m; {" s# ?+ Rwhile[ i < people]
. p8 J$ w  U) `6 r[( t( [' E# d: x
if( length (item i
, T7 ]0 f3 B! M% E2 V. b  |: Y- g[trade-record-all] of customer) > 3 )
6 L0 I3 x3 D  {) w
[
* ]( {0 u& ?/ O- ?1 |* Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 p  r% P, Z9 `; L, ~' O]
# B  A: c5 x/ A* T' E]0 s: Z' F* ?- [9 D6 a; h6 J
let j 0
! K! d6 Q$ q$ c( dlet note 0/ p# }/ T) V/ m: d1 j- q
while[ j < people]
4 O: K& Q$ |$ m( t1 S[2 v0 |: J$ h- P" g: P1 r
if( length (item i6 O7 X8 q: q4 T$ R5 Q( s3 j" l
[trade-record-all] of customer) > 3 )
9 i9 g5 T) x; C4 V6 {) u
[2 K- l, q& o  x; e- p1 s' c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 L7 E# M0 d7 I8 L
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& ^3 Y* D' J; u1 _' `" p8 M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ b0 x5 k6 _8 I7 o& M7 f], M* }+ A- ^2 ]7 V
]
0 d  ~5 C% w0 qset global-proportion note
/ h  n, U1 r1 H; b+ V]
3 v* A( P7 C" u  f/ s) Tend
% U+ e8 O- H2 d: x5 X' k+ U) K$ c" ]9 `' v6 u" X7 {4 \5 L4 j
to do-trade) i8 L5 j% e6 H, ]# b
;;
这个过程实际上是给双方作出评价的过程/ h; {/ u5 [) |
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价1 q% H2 q; I& N; s
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
8 k1 S  Q; I- e( }8 U1 fset trade-record-current lput(timer) trade-record-current
4 i5 Z8 s4 m$ X, P) p;;
评价时间' o2 j) z. w( K3 c2 M8 E5 V; l
ask myself [
" x: h+ ^  f- wupdate-local-reputation! p7 f: `+ P; Y: g$ W, R
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 P  p! ]- e5 ~$ d8 v" [" G]% @1 r7 |" {2 F; F, ?+ i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# `: y0 t- {# Q$ s, g0 h
;;
将此次交易的记录加入到trade-record-one4 C  ?& H6 j* I; K6 q7 Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 u/ L5 C1 {% b1 A1 @- q* M& I; ]
let note (item 2 trade-record-current )
& u' T. a+ i: ?/ M) Cset trade-record-current
( e8 z; j) |4 E. k/ v; w  `(replace-item 2 trade-record-current (item 3 trade-record-current))

+ p: f# U6 Y9 E# Kset trade-record-current
4 Q# R3 c' c+ X* h: P4 p0 N(replace-item 3 trade-record-current note)- t. h5 @/ b! Q& _
9 Q# K$ ]  S8 ^0 _! A% A1 j

3 j4 x' a+ ]6 g7 R9 M" h1 qask customer [
1 B( [0 B4 P* Y+ r3 ~update-local-reputation( G5 f! |. e6 e. y+ b3 {
set trade-record-current( u9 W% W# m) y/ Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

5 Q9 E7 S% d3 k  g* V]
( [4 q# Z3 f+ A0 \( @2 F
. c9 m8 E+ j2 P! O8 W4 c6 e. _
8 X. b  a. M5 z8 O( j+ m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, ]; V4 h6 n3 C: K/ X3 u

" g6 C9 m8 x) q: d! Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* G& ]# O- S6 Y0 N( m;;
将此次交易的记录加入到customertrade-record-all
: A# |, s( O( ?2 \9 j& T5 jend; p0 v3 _4 G5 C, O, m8 M
' C; S+ u( V6 w& r  Y' P6 X, Z
to update-local-reputation4 d: z% I/ K+ r7 H# N5 I
set [trade-record-one-len] of myself length [trade-record-one] of myself
1 z% }! }0 X, _
0 }4 f# _: W" N8 G! o3 l2 _) j9 Z8 H8 l5 ~
;;if [trade-record-one-len] of myself > 3

' b  W, r; D: o1 ]& G/ k4 C0 Oupdate-neighbor-total
7 u  k, L2 j/ r$ b2 U8 \;;
更新邻居节点的数目,在此进行
; K6 M9 S& Q( ~9 C. Qlet i 3
/ L0 p1 V5 H/ }4 K% D/ Tlet sum-time 04 E6 R6 S; y. B+ |. I
while[i < [trade-record-one-len] of myself]2 D# A( }# x8 D, T9 O1 A
[2 o. k. x6 O+ H1 l( M# v% A: v$ y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): F1 \( u: O0 F
set i
5 _0 j2 y6 S8 q. h2 d- p( i + 1)
# F2 ?4 |" A6 m0 q- D4 j. U6 L1 P
]& D: z/ {, Y: f$ ^+ ^- G# e7 P
let j 34 t! M$ A. m  y) c6 C4 ~
let sum-money 0
+ H9 l/ M( c  C9 fwhile[j < [trade-record-one-len] of myself]
' n* e4 o+ V% E0 F8 O  c$ p, v[% i* v3 E6 E4 [( O; @6 H% u9 J* 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)0 ?8 f) _. t  s) ~( y  s- b
set j
* V/ \& T3 Y9 K4 Z# m; H( j + 1)

6 [+ o: D3 q: c5 ]  H7 a% W]+ X' r) A& y. @  F
let k 3
( O- w: x- N( y+ H7 |let power 0
5 `( h5 f) d; z" ]( Rlet local 0
7 {6 c' L6 @1 Zwhile [k <[trade-record-one-len] of myself]% j5 n7 z' L+ P9 `* h6 u" P3 D7 P
[: d3 B5 G$ p1 Q% J, T( Y* I
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) ) o1 z) C% ~9 V- V: X6 K
set k (k + 1), o; b- V. c. C3 Q$ i; a4 ?7 t
]
2 P$ \6 [9 I' J( H. Tset [local-reputation] of myself (local)8 _0 ]8 p+ c% t9 ~8 M1 i3 g
end
( P0 I+ G) U+ z/ ]  g- C4 s  C. ~; `3 A0 j. V: a+ i
to update-neighbor-total
/ S. i5 E4 D& u
7 u6 g' v9 S; h. e' B) s( G4 }if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 H8 K* j& H- e$ ^1 `& v) g- g2 R

4 M/ c9 M7 J2 c+ B9 K- \+ l& L

: I$ \3 k) R9 ^& `# zend! F! V+ T$ V: B+ T
, l1 f4 ^: I# N0 w! d1 y% S+ u6 y3 i
to update-credibility-ijl
& d9 Z, ]' |1 ]# b1 d* s$ C: ^7 B% z) n5 X5 k
;;
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。( m( v/ g/ N! v( O+ R
let l 04 m& y) P; p- K3 s( ?# \* S, \# \6 s
while[ l < people ]
3 A/ D. p3 j2 P. T4 D;;
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  T: b# @% E% r/ W# X' `5 P- {
[- @* x" W3 W, U. i: }$ N, u! n' p
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); ]$ S0 S  o% H  Y% P4 H: a
if (trade-record-one-j-l-len > 3)
: W' g9 v! N) X7 a  X# P[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
; y2 I( i6 ~; e8 L" R$ }1 nlet i 34 k7 f6 m! ~$ f
let sum-time 0. G& @; \4 [% C  k
while[i < trade-record-one-len]) o! ?6 r! n  o: ^9 ]
[
0 i& o5 u$ R! r, Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 a8 H6 y( Q  a- t
set i, H6 Q* Q$ L. X
( i + 1)

- l. ^- z% c1 F, @7 P* ?. u, e' d]- P# `' i" C6 S$ P0 G6 y
let credibility-i-j-l 0
' O5 N. @7 h( b  c$ ?2 V0 H;;i
评价(jjl的评价)
6 V% a7 n- ^0 Z0 |1 J& Alet j 3  Z0 c  _' x$ P# d- g2 c
let k 47 E) C  _6 l" S0 S: A
while[j < trade-record-one-len]
" a$ `, M, `7 d[+ @9 l' m+ e! N3 P2 b
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
9 H* G8 Q- r; i% E; Nset 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)
* p3 a* @, }! T$ W1 d+ @; f8 Aset j+ w4 Z  Y0 o1 w) y  t
( j + 1)

1 @' G8 X$ w5 D4 Y$ R]
& A" L  I( \7 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 ))
* t7 T, r7 E& n( ~% @$ d5 d5 @* g. s4 V
7 U& X7 ^' u! a  t  A% v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
  w2 t* o4 d& Y. ?/ g% }% V1 ~;;
及时更新il的评价质量的评价
4 Q1 \+ V) o2 ]9 aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 _8 Z) Z! z2 o  [set l (l + 1)8 a. E. D0 o2 M6 ?* p
]
8 i! B2 }7 O6 M" w8 v. a- d' H4 Iend
" ~" ^! z4 p8 W# S  h4 F8 x: I9 ^; a0 u6 e
to update-credibility-list5 G3 \; j! s% d) b& R! \
let i 0
% Z6 ?3 Z, n1 [9 v: Z. [' owhile[i < people]
/ l, @6 M% J$ u7 y$ L: D[% y, v6 N9 e/ t: c
let j 0- j- C3 G6 _1 A. D3 U7 _
let note 0; e, l% m* b1 |0 ~' N
let k 0- P. b) \7 ~0 a, @9 y- ~
;;
计作出过评价的邻居节点的数目
1 X# T+ A1 \. E/ j7 J; kwhile[j < people]% v7 W" ^" I1 e
[, M+ o0 L, W' y& K' O
if (item j( [credibility] of turtle (i + 1)) != -1): w: S# _) w4 _& \
;;
判断是否给本turtle的评价质量做出过评价的节点
! `4 W8 V/ d" {0 s5 N[set note (note + item j ([credibility]of turtle (i + 1)))
) i% A+ g  |9 k( \+ c;;*(exp (-(people - 2)))/(people - 2))]

0 ~9 K1 V1 E( p8 G5 J* uset k (k + 1)0 a! x1 ]9 u3 J. t4 ]4 M- e
]$ N9 x" T, s# |' D. M
set j (j + 1)
) m+ y1 K3 S- z+ N5 s]
" E8 x* ~6 i) l% a8 p+ e: ~set note (note *(exp (- (1 / k)))/ k)3 a5 F: V. o  R9 v1 `2 I& m6 O: w
set credibility-list (replace-item i credibility-list note)3 U: @' L- ~  u0 w5 t) C. |3 \
set i (i + 1)- N* m8 W7 V+ |% |
]! k6 R6 A4 C: R) g4 Q% W$ J
end0 |+ O% `2 c7 h0 y: z

8 D  M# W9 m! A8 b+ kto update-global-reputation-list9 m. k5 q4 L7 ^6 e3 T+ ^
let j 0; i0 M5 H; I9 T+ H; [
while[j < people]+ w; i6 k$ X7 c) k4 o3 @! m3 z1 S
[8 i  u7 A! Q, b2 B2 K
let new 03 R/ a$ x+ A) }% C5 [; U/ S
;;
暂存新的一个全局声誉  d3 l# Y+ [; z" P$ R2 Q/ F, H
let i 0
# V2 h8 K6 P: i- n5 h5 }! wlet sum-money 0
, d- i) I+ @+ a; M% w5 xlet credibility-money 05 r: `- d& m. W3 f
while [i < people]& O; Q- n9 S2 O8 {! P0 D0 Q8 O: q6 w
[$ ]: M) F  G# O
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! Q$ Z6 s6 h( M" X: i. }, e; e& ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' Y) q/ R" @0 p4 I+ |, j+ [! E
set i (i + 1)! t/ J7 i% a0 n- A8 {/ O) T* x6 V
]! p( y) j& g3 x& g5 m. B! Z
let k 04 L% W" J/ N4 ]4 y
let new1 02 n8 i* r: w2 A0 s3 C1 E
while [k < people]
  ^! ]3 z  S- ^( O) q[  Z3 S" N; L! T' Q4 e6 [
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)
6 g5 g* `3 r3 B0 Hset k (k + 1)
1 B- Z$ n% i4 |; E3 ]) _, m]4 u- ]/ ]" }# R8 y, S; ?/ D
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ d0 y. C+ J. Jset global-reputation-list (replace-item j global-reputation-list new)+ o- X1 F& o8 v" q# L) {+ j
set j (j + 1)$ ]" u  h* s1 Z# M- g# ]
]
* F+ k/ N% S( V: ?. W/ Z  n+ u! k, o; @, eend' `& x2 i. f3 V9 @* M' N
' Z- Y1 _& J3 K- y8 j8 }# O! e
3 E4 U% Y" x. c

4 t. F1 m1 A7 {: T+ bto get-color
6 R/ L% N- Q3 N* `- a
4 a3 p5 ^  u3 |- p% ~6 Qset color blue

0 e- y8 V/ P6 R- W/ v! hend
# K0 r" C. [# p9 o) s' z  R
& Z3 I0 S  x# w2 ]0 X9 j: lto poll-class- n% T. [0 p9 I1 ~
end
! k! o  ^7 f" x) h3 z9 K7 S6 Q8 n) I" f6 U6 R% X
to setup-plot1
( B: V; a) J4 o% I8 _% X- e: h# q' Q1 A( O( P4 G' d' S+ }
set-current-plot "Trends-of-Local-reputation"

8 y$ O+ _9 Q$ A7 D, J1 W0 m0 a! @$ t, @5 D: f
set-plot-x-range 0 xmax
1 ^/ q0 `( ?# E  G- Y

* O. w4 n: j* @0 m( L- aset-plot-y-range 0.0 ymax
: n$ H1 e. o% X, U
end
& n: d: T3 s% o4 u4 Z: L4 s3 h$ v% c5 q6 i
to setup-plot2
# }# j( X) G2 i; j2 W
0 M# v0 a* V4 w& _% g! Z( |3 ?8 R5 wset-current-plot "Trends-of-global-reputation"

" |% D3 t2 R2 k! u: ^, h  `- X4 c! s( K. _1 F' ~! G5 }. _% H; S
set-plot-x-range 0 xmax

& F: t6 A8 x- p0 L) H
1 q$ K2 H( x6 Q# g3 T. t! h8 jset-plot-y-range 0.0 ymax
7 z/ q  g. C" K, @
end' w7 r8 L* \) R% [2 e
0 S2 M: S! o& b8 M
to setup-plot3
* Q; R: Z3 B% E0 {2 r# s( }3 L3 @" C+ E* H
set-current-plot "Trends-of-credibility"

+ B) \$ o& N  D9 x  e5 B+ U5 o7 I; y. D/ |
set-plot-x-range 0 xmax
4 ?: [% d: f2 V7 y( w7 `
3 C2 _0 V5 a# {2 c* G, I
set-plot-y-range 0.0 ymax
2 x* \5 A. L0 |: A6 W5 M
end
' l# C" T3 `+ ]1 _# P& S; V
+ X- @; B$ k- |! J2 t  nto do-plots. m: c$ _; ^. b1 H% F1 a$ i
set-current-plot "Trends-of-Local-reputation"
4 W) w4 Q  }9 H+ z# A- pset-current-plot-pen "Honest service"/ @  n* |4 m- z3 j
end
3 r* H1 K. {& o6 M+ h7 h+ J& C& b7 L) A* a; U) `: p8 X8 O
[ 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.
! u- J0 z0 I3 O" o& F! _; v! g
' J9 }6 D9 G/ `; C" j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, 2026-5-6 15:02 , Processed in 0.020313 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