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: 11329|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:
4 B6 r$ g* E) ~! E3 ]  M+ Sto do-business
& c8 m! m# G$ f9 ?7 m0 S' i" f rt random 360  d+ ]5 |; n9 I/ ?# q
fd 1
. D6 o+ B; Y9 [% K: p5 y4 p1 t* d ifelse(other turtles-here != nobody)[
: D' X9 O# M9 u2 p6 w8 ?9 W   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.6 m& R5 O- y% N, \$ @% e% |$ q) V
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
3 }" p+ n4 ]: F0 R: c+ q" I/ B   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer2 ]. }$ O. T5 V. f
   set [trade-record-one-len] of self length [trade-record-one] of self
: F$ B7 O: l* ~4 o   set trade-record-current( list (timer) (random money-upper-limit))& q4 j  K. `' a4 t4 m, y& q
3 k$ S' J- w$ n) h8 ]
问题的提示如下:4 ]$ ?& t% p/ w) V- W

7 f' f# R/ ?* ~. yerror while turtle 50 running OF in procedure DO-BUSINESS# D, h$ U5 A1 Y5 M+ ^$ {
  called by procedure GO
$ v: Y" c$ n3 LOF expected input to be a turtle agentset or turtle but got NOBODY instead.
0 X+ T7 O/ \+ t2 @1 V5 l+ A2 T: }
(halted running of go). `  U$ v) |' K8 e) Q% m
1 @* \5 ?0 {. d. v
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~~0 G) O6 Y- m. D" H2 a9 t
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
9 V5 {5 S7 \6 y- V9 T1 v4 @globals[
5 j' ?: a' z1 i8 {0 \) m6 R1 P3 Axmax! ]5 J7 T5 ?5 K9 P7 c/ K# Z
ymax# B) _- v& e5 P
global-reputation-list% Z/ G$ Z: a6 p1 G  f

9 @5 u) a" Y7 K! `. w;;
每一个turtle的全局声誉都存在此LIST
) k3 [) M) g: g! @8 icredibility-list. T& e/ ^5 N& X# b; g
;;
每一个turtle的评价可信度
# u& v; K6 e' P1 Bhonest-service* i+ V+ ]* F' g& s1 l' n- T
unhonest-service; `6 k; {' h6 y- W7 P! U
oscillation7 _; M) h0 {1 e* y3 T+ W1 F  F4 n. z
rand-dynamic
2 [3 H' [1 m: K3 ~& q3 A  M]
* v" u2 ]5 @1 I, W' i7 T' T" D& U+ f7 T; b; D
turtles-own[+ R. m5 k- O. `* U, {: }4 ~2 f
trade-record-all
. {) |' j( s- c;;a list of lists,
trade-record-one组成
8 t7 E' i3 V% J: htrade-record-one
1 `4 [8 o9 g' B! h* r( o;;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 O& i$ {; v+ B* H5 z* K8 h' B1 K' L" b% q/ ]% D! l
;;[
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]]
+ D4 K* n5 E" Q, p" strade-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]
2 g: o% {4 E$ R* L: H3 x  \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
. h* }3 j' J* Q: n; |! p3 lneighbor-total; v3 F' J6 U# {7 ^
;;
记录该turtle的邻居节点的数目
$ @5 H! y; c" O6 ?9 U+ ttrade-time1 Z7 Z+ h" C. I$ f% N" s
;;
当前发生交易的turtle的交易时间
! P0 @/ G  }; ?, happraise-give
4 y2 _) D+ m8 ~7 W+ i;;
当前发生交易时给出的评价6 P, j% B2 Q+ P$ u2 Q1 S
appraise-receive
5 a* u9 ^4 Y  F5 ];;
当前发生交易时收到的评价. K2 L2 u( p; e. }4 O0 C* e
appraise-time
2 H$ a: X, b& s6 V+ p4 x& E;;
当前发生交易时的评价时间
2 |9 o$ ?3 n5 y" r3 Zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) s5 O8 m" j' C. T/ y. T" _trade-times-total1 L/ v* j* Z3 a3 j7 y  ~
;;
与当前turtle的交易总次数
, W! ^# E4 h9 S* c: n! f! J! Gtrade-money-total
) X; ]* o% Q- |$ [2 M;;
与当前turtle的交易总金额  \( R% M' V% x+ ?7 K+ t
local-reputation
( K8 ]  a; Z" O# Wglobal-reputation
( H4 z$ K# i/ W$ o8 H$ Y4 @credibility% P# E3 S+ p2 m8 Z) ~+ p3 f
;;
评价可信度,每次交易后都需要更新8 o  r' P; Z) K# b4 X
credibility-all# {5 D* \! x+ c: 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, ]1 p% G0 N, t  `

0 H8 _: r/ W: c4 n;;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: }# P7 b. A4 V  R6 f3 R; Y, A
credibility-one! b# i6 [  ^- _3 a! J6 Q' |. T
;;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" O5 P3 h9 F6 w# N/ C2 D* c
global-proportion4 ~5 L4 q2 E9 `8 c1 q6 e7 z
customer, @& P- v5 \! `9 h) S) J
customer-no
7 W% b: W8 \, S% h! Itrust-ok
0 C" q7 I# m& qtrade-record-one-len;;trade-record-one的长度! O1 @* ~8 O) S0 q% _* q# [- U8 ^
]2 o# q5 R  H) a( K5 P6 u6 X

8 S( ]+ U2 r4 T+ I) m8 N$ q3 n;;setup procedure
  w: y8 r) |" B5 w1 ?' ]$ `: Y1 A- m- Z; E, K( S  E- `
to setup1 Z9 A* v7 ~' m, F6 q$ Q( }

! Y3 m' @" k, }) `ca

" K8 c6 L. R' |
# ]9 ~; t4 F: ]' |initialize-settings

1 @% S2 z4 U9 p! N, e  I! A9 N: ^; `! E% X: i+ p0 R& h
crt people [setup-turtles]

+ o6 s2 y, t% ]( R' H" V6 J7 {4 q; J; \7 l' R& V  ?' G
reset-timer
: X, g4 a9 V! y. f% e

* z+ D) A% @% n# D6 W: apoll-class
- \) b1 i! K; h& {3 h9 Z5 Q
/ Z! l6 V$ _. ^+ a1 d/ x$ ^6 h
setup-plots
: E! ]4 Y- L1 T& ]$ d' H

2 H5 }8 @2 d: B5 r8 sdo-plots
' a) e8 i3 O8 ?
end7 v$ y6 O: ^  L5 N3 P' M. F) s5 d/ o& z
! }- t# ~* i. t  U
to initialize-settings% `" F. M0 ^9 I" H8 n# F+ k

$ H# \. e6 e- L7 o( ?set global-reputation-list []
5 R# d; u# I$ ^) E& m6 |
5 [$ z$ G$ U1 \! L5 i5 R7 _
set credibility-list n-values people [0.5]
6 Q2 m5 C- R$ k# e  ~: ^9 Q8 v
* A3 }+ R+ ^& g" l, v% Y
set honest-service 0

1 v. O# U+ P) q$ K0 D8 [
8 o) p2 E6 b; I0 d1 Rset unhonest-service 0

3 P2 P' S' M& j8 o8 C, l% g) F
9 ?- d4 q  }' I7 D9 Z$ n0 [set oscillation 0
8 ]+ d: ~' n0 ]8 U6 \. Q* {
" T* i  I! h" U4 _
set rand-dynamic 0

& H: m% P8 k( f. a/ T3 s1 Vend* b) y$ s0 Y' v" _, o

5 U3 ?1 ^9 `8 A6 ]to setup-turtles ) ]) O1 B5 J( k% t1 k& X
set shape "person"
1 _+ V# w. E; r, m, L7 O- ]2 {' ]% Hsetxy random-xcor random-ycor
4 r- k( X. g/ {+ D% n  eset trade-record-one []8 U3 G6 [+ N- j, h6 O, z2 g1 b

% T6 W& y6 O- Z3 T; xset trade-record-all n-values people [(list (? + 1) 0 0)]
, v# ^6 q* P1 N: C
& I* c" Q8 G2 S3 W- Q
set trade-record-current []& s) i' y: I/ b( M
set credibility-receive []3 \9 ]! l5 F( s: O1 e
set local-reputation 0.52 q3 H1 N% u1 `# E3 A! r
set neighbor-total 0$ U9 I& y* l* X" E" |
set trade-times-total 0
0 w  \8 \/ V% t  vset trade-money-total 0
$ l( h9 o- a3 {. A4 V6 pset customer nobody
/ a' x) X% ?" i$ j* Z) `. Y2 i; Hset credibility-all n-values people [creat-credibility]6 W" L1 e1 T  N8 g' C! |
set credibility n-values people [-1]+ n& w' i" A6 g2 p5 p8 l1 R+ G
get-color# o& H7 {) k( V

' F/ r( i0 L7 H6 [) k) Iend
$ J  a0 G% a2 }+ \8 D2 o& ^
8 G0 x5 y5 T/ V( q7 eto-report creat-credibility% U" Z) r# n7 n4 {+ S
report n-values people [0.5]
) Q! C. F! |6 x' ^/ a2 send! r/ p: V# Z9 H- G
# c$ T" e- S4 T, |' J* ]! ^
to setup-plots
7 N+ E) X' }% E/ J6 c
( g4 E  g, g, U, X* ?. a1 \set xmax 30

6 G9 [: y6 z5 S# r# w) W$ w7 e7 ]2 X" c
set ymax 1.0

+ i9 F9 B* q8 o- A$ o& e# z" p$ I' b. |# h- z
clear-all-plots

+ l) f0 O; |  [  T$ T
- F, N7 \& Y1 F/ |9 [: h; Rsetup-plot1

+ W3 A1 U- H/ A
( f1 x. r5 @) usetup-plot2
, w9 e2 _1 N. a$ I5 b) t. B* b
* j7 k, F3 Q6 b! p& P
setup-plot3
' i6 l( D  O. m( t5 ?  x
end
& m; V# P+ e5 @. b2 e, b
  ]' P2 N' B  J1 Y;;run time procedures9 U" e9 V1 D7 @0 z4 `' Y
+ e  f; T0 a3 f1 r9 b, m* V7 W
to go/ g, u9 c2 K& H6 x7 s" z

9 j7 ?) n  a! A$ task turtles [do-business]

" q4 L8 \8 F  Z  d8 N5 ^$ C8 F/ g, Z9 }end
* c* V  _, [2 e6 K; P' y
0 |# K1 u7 ^) m( c* c- Hto do-business
+ ~' Z" U1 o3 p, q4 [& e) z
- l2 u2 G6 D/ ?$ T

) g# _% f+ t' i7 R" @) q% Nrt random 360
5 e" w4 q* z" ~0 f) s: L$ }" @
- H/ h) J3 H" R% M5 m. [0 `
fd 1

* I. J9 M2 N$ L6 |9 V' J. |) U# ~/ o; M6 R
ifelse(other turtles-here != nobody)[

7 q$ @3 g1 P# |) I# O/ k+ n1 `
( U! e2 Z' r+ V' [, f& i# d# i4 hset customer one-of other turtles-here

! k* f* g! @5 z7 s. `6 d* {8 W. s! d: r; e" h" ?
;; set [customer] of customer myself

8 c+ G) ]0 h* m3 H9 ~  i
# O# Y; V7 F+ O8 R: Q5 Nset [trade-record-one] of self item (([who] of customer) - 1)) C# D# t8 D; m0 V1 M
[trade-record-all]of self
: Q, f; `. T/ E0 q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* _& @, |% K/ w6 r& h

/ h  ]7 w& J. h! m+ c+ y5 e, c: h0 Kset [trade-record-one] of customer item (([who] of self) - 1)& G% p+ N$ y% E% ^8 _) F
[trade-record-all]of customer
8 K  {- @- f- e, q9 J* L

, a7 D* w& B/ ]) l8 cset [trade-record-one-len] of self length [trade-record-one] of self
, P3 m9 ~) m/ {

  Y6 |! _+ j# v! }/ jset trade-record-current( list (timer) (random money-upper-limit))

7 F7 k% M' d4 U# b5 R
% N: Y3 A5 {! |  _6 a( P! _4 n2 J- Oask self [do-trust]
( c2 L* U7 t3 ~7 ]' B0 V;;
先求ij的信任度4 q) n0 [7 g+ v! o; A; O
# h* q* f2 e$ V! s6 ^* V5 Q
if ([trust-ok] of self)* `3 C* D  C6 v" @+ x! i0 j4 v
;;
根据ij的信任度来决定是否与j进行交易[
6 V! U8 h- a0 d. A3 k$ Bask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
8 p0 x( C! z, l; S
$ {$ ?4 w( R# G[

8 A; i. N: U) }6 c4 r  g
2 ?8 t, @  d* Pdo-trade

* ?; V' T: I0 o% |6 s  _% t$ C6 O: j" w6 @8 R- e9 {/ r+ {
update-credibility-ijl

5 U5 u, L. L7 \  t3 B! |  L0 T) N& v) O. O1 L
update-credibility-list
- c/ `3 Q& F5 s% A% t: X1 G

" i9 [0 U# V: `2 @8 ?, A" h: ]% {2 n; |$ k
update-global-reputation-list
( S$ p. {7 N+ W2 P5 e3 N9 R

, ]% f$ J% ]- ?. A: qpoll-class
4 G- }6 Y4 I2 c$ {1 P( Z

$ n& \$ @) n8 Y& Y# g+ I7 {& lget-color

) _3 d2 g8 H3 a& i. H5 p
# E; s  Q5 p1 p]]- ~% }7 }; A( H( Y- p

* y3 U9 s" q# Y% U8 v;;
如果所得的信任度满足条件,则进行交易$ k* H2 q. ~( Z. G( w- m0 [% @
+ `; S8 f2 B; Y6 a
[
6 C$ B. w8 a* R$ k& z; x% w8 L3 s$ m) \

% r  X4 X- t0 c- [' \+ j2 ert random 360
- \. E5 M& ]( V" b4 O' @/ r) k# u% e

. X& }6 ~1 V& s. j" l0 ^fd 1

7 e& [4 T: N7 \7 M
- b7 `9 i' w" U2 Y+ H6 B: u7 Y  D]
8 H) |7 g/ X8 C
- H5 U) q+ B5 s  O* u4 L# L
end
9 ~5 X: `0 p8 [/ n

1 @2 F0 \; F, p$ H: s8 C* hto do-trust 7 ~, |$ @. g) Z7 W* W4 y
set trust-ok False* K  e& F' s5 M  r3 g/ n

: z; c; a& k$ ~/ G
8 |) g/ M5 D% J: Q
let max-trade-times 00 F! }) z5 y* r: E% S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& A, \8 \* w% @) W; @let max-trade-money 03 W" w; I* s( q9 |  Q3 }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 B. R! E, A+ [& glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' w5 c- Z8 O4 u$ f

# q& n* Z8 L+ f+ H) Y2 ?
" Q9 r, D5 u5 a2 i
get-global-proportion/ [% W6 z+ d5 L2 N+ Q
let trust-value* |4 l! g4 _8 }: a  e
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)

* j# {, s8 i: j/ H- fif(trust-value > trade-trust-value)0 o, U" ?( R8 S+ z0 f7 _0 J4 d: j0 g
[set trust-ok true]% E$ n7 K% Y/ g  r! N
end
' l- ^2 H0 f0 u3 s. M  t" d+ T* G. G/ s9 N- n) ^! X0 J
to get-global-proportion
$ x/ ~' G6 n3 bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 Q. k" _5 O- l" x. m+ P: N/ V[set global-proportion 0]6 e) W/ t3 w. r- A8 p" [
[let i 00 O# M+ ]. `  e5 T" L
let sum-money 0
( M; L7 S& K8 Z8 z- e4 T3 `$ fwhile[ i < people]
; e. C: m5 Z' k$ [& K' O. f2 `[+ l, a; c( u" z4 }
if( length (item i
, B- T( I! M" c* Y6 |8 K$ R& r$ f[trade-record-all] of customer) > 3 )

4 V( x- r" B/ z3 t5 l, g[
3 @# F" H- g; [" |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, @/ D3 A: n: [) L]) o- c/ K) o9 B0 m# n1 A8 z
]% G" S# N$ A8 f7 k; ^- b( s
let j 0
5 j: i" J/ B! m( \  O5 Clet note 0
6 b2 E1 }, a" b3 f+ ?4 |/ bwhile[ j < people]
$ v* o; k2 I( O! [6 K4 Z# H[
8 A2 \) u% a, pif( length (item i$ _6 m. j2 ~1 D* h; N
[trade-record-all] of customer) > 3 )

- u" ~: [3 D/ ~! U/ v[
6 ]9 m# t( q0 O+ Jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 Y2 p: o+ l$ F; ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 _$ D$ B( J1 O# G! _% U[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' \6 K" @8 P5 S8 W3 H]
* H/ W2 d1 D$ h8 V/ a$ l]# d! k4 L6 d, o3 l  J/ c6 @
set global-proportion note$ q; ^$ K8 W# _: ]; r5 h+ {
]
) C5 p, ]5 v" {5 P! W* N/ Bend
0 R$ a/ ^! l% l7 u& o9 w% m/ {+ v0 w# A! W. [' C
to do-trade
7 }0 P, N* D: k$ k;;
这个过程实际上是给双方作出评价的过程' k0 Q, j' S6 i7 A
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
8 O6 {' `" Y" A9 [+ [set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价  q) L2 W% {$ I. ?2 i
set trade-record-current lput(timer) trade-record-current2 W1 D* y: f9 u3 b6 g/ g9 B
;;
评价时间
3 c/ O) B+ j/ D  R5 oask myself [
) M. d4 ]/ @& _( a* K: l' A2 ^# fupdate-local-reputation
5 Y0 t9 A1 U/ a% Jset trade-record-current lput([local-reputation] of myself) trade-record-current
/ g. \- J& V$ j6 [  P]
- X$ {, W4 V7 X% C; a' o: lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. m  w+ N% F  W7 e8 \) K" L
;;
将此次交易的记录加入到trade-record-one/ c! k& R9 Q& p- C% ]: M9 {; V- D# N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 q3 b/ J$ a2 m- n" @
let note (item 2 trade-record-current )* y- R5 L. Z, m0 P8 _/ ^
set trade-record-current+ T& a9 @% s# C
(replace-item 2 trade-record-current (item 3 trade-record-current))
; A/ h" i' j  V) q
set trade-record-current1 U3 F% D2 L. H
(replace-item 3 trade-record-current note)
9 X5 I! r- m2 g4 v  h) T" V" s4 ~- ?
& p7 y6 L! z2 X; M; G+ I1 G# ~* T
ask customer [
; ?: k  g1 Q5 g  j' q1 Kupdate-local-reputation
1 u. E, S1 n& d' I" M* \3 oset trade-record-current
: S) C# A) u5 _4 X% v" D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ p# v  e) z; m* f& G# t. z
]
! J# o' b- D; a
. Q* A' \0 k* l9 j$ A
6 h, p7 G# p: ]% Y3 D! L0 H9 k2 U
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 P, ^, U. Z3 x/ O" e' g
- P: {: P+ g( w0 n! u& e
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 X2 p9 Y* _* |0 y) e;;
将此次交易的记录加入到customertrade-record-all1 o8 h& K; I8 y
end4 k- n9 X5 m1 P; q* L. O

" o1 J, g* b) }5 Gto update-local-reputation& t( i# c8 u+ u1 ]. n4 a9 {
set [trade-record-one-len] of myself length [trade-record-one] of myself" `* B% N8 m) K" f5 M4 N2 U# Z0 S
. ?# c0 T; i% [; h1 A# e4 B
4 Z2 h% x7 N% r7 P& {7 J
;;if [trade-record-one-len] of myself > 3

: \0 a) t7 p' D  y% k+ A+ _* k6 e2 uupdate-neighbor-total
. I& O/ L4 S' z* m' q! D;;
更新邻居节点的数目,在此进行2 w4 @5 K6 P- T/ y6 z8 [4 ~8 [
let i 3
1 |1 I! Q/ Z% `& C$ e' y7 Jlet sum-time 01 I0 V2 i, v# I# b3 \
while[i < [trade-record-one-len] of myself]
& r1 b$ R: w2 q9 j! f7 H4 \1 Z[
+ b9 Z2 I" A, N$ \set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 l. d3 Z8 e6 q  ]1 |8 W4 b; S0 s) |
set i+ |% J1 l0 t& U9 a$ _5 @# D
( i + 1)

& H, J; H, S0 I- B]
8 O$ Y; {- }! t7 A+ o: Jlet j 3
8 a' Z' Z" j$ i1 ?9 Nlet sum-money 03 B0 P& I: T% n5 w9 G4 q/ R+ g
while[j < [trade-record-one-len] of myself]
7 S$ F/ A% T1 ~' ?; M; |# s[* s' u2 R9 k) P. ]- Q0 J, m) B
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). A& ]. `8 ^* P- _- J: n$ c. C
set j
0 m" ]& @9 O- v# @: y+ ?( j + 1)

1 \$ H3 |! N. l# X]
! n! v9 K! x+ o0 Q+ c. F9 Elet k 35 a& z: b% A* e& l, ^' F
let power 0
5 @- a- j/ h5 r% w( P( Xlet local 0! T, x4 B) c; _
while [k <[trade-record-one-len] of myself]7 }* @- U) Y' p0 h' G6 V7 \) F8 `
[
7 p6 {. q+ U( 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) ; g. Z) b7 U# }: S% m
set k (k + 1). m4 O1 y3 e/ ~+ Z% V# H
]
+ D8 F. {+ t0 @9 G% b: C( c) Wset [local-reputation] of myself (local)
6 P/ z7 e) P: C/ Jend
9 V9 g4 `' r4 g" O% I, O% H' ^5 ]) Y- E% {9 p# o8 G
to update-neighbor-total
* a# Z/ U) r6 C1 p  p, c* Z: N) Z  B0 j
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 |. K, n) \, L) G2 r5 K# l/ @

* P' [+ M/ Q; _/ {0 a

( n; y) Z# m- P. U! {end5 ^; Q5 P* Y, z3 U3 M
  M1 D% f) u2 `6 \% ?  D
to update-credibility-ijl
- m. p3 ^7 G- J9 t& W- \1 p9 c  ]: C
;;
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。
: g, v$ H. `2 u2 q9 olet l 0- L- f' d8 ]  m  C' B8 S
while[ l < people ]
& q1 N" _" F% ?9 d1 x- b;;
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; v4 [# S- D0 \% m" o7 m( d' F
[' l* \. B; q; E4 `& m& O6 z/ O5 [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# R3 Z2 S5 U3 B# ^$ A7 mif (trade-record-one-j-l-len > 3). G/ B0 s0 r& U! B; i7 y: i
[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-one0 ^' E+ t) w5 a: x7 M8 h; J
let i 3( e7 v1 ]6 p  W; r; T" D% |! q
let sum-time 0; m5 P9 r/ N9 ]7 i
while[i < trade-record-one-len]
2 ]3 d4 h2 S8 f1 E' n* f[4 U% r* m# ]6 b4 g) R3 _
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' k$ V4 h. h% R& lset i7 _' m: a  u% H* P
( i + 1)

- a' m$ c* s8 ]9 D8 @]) i5 O4 `9 u, J8 E
let credibility-i-j-l 0: c" I9 G+ p) Y8 ?& W4 g6 |
;;i
评价(jjl的评价)/ `; w! r1 f, O6 I) g+ H. v
let j 3) E. ^0 @; ], T, {8 \' H
let k 4: ^- B8 V) [0 K0 _
while[j < trade-record-one-len]
+ M6 O% N. W! J3 d. M. i0 d+ {[
9 x# d2 [- i5 I* W" `4 owhile [((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1 I* ^0 O' G6 ~( z! h+ ]1 c
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)0 N, k4 g8 H, u) _
set j* h% p( p; `8 [( X
( j + 1)
9 h/ ]3 N/ S# i+ D
]
  G0 i$ k! i; fset [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 )). d9 T5 x, D% V; Z9 K
6 f3 U* `2 |( u2 H/ X( \

. Z. v- C; m' [/ ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 H& ^& ~1 r' w' R% [& {  i4 }3 C;;
及时更新il的评价质量的评价4 \: c6 r) A* m9 z. G8 Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 V4 E( z2 J9 T8 D( X  M
set l (l + 1)
) S# B0 s" F8 p/ @0 g]
9 F2 o) a8 z8 Q% T0 ~' T' Aend
. x5 i7 Q$ x. d1 l. i$ G8 X. H2 R& x$ W8 |: [/ Y$ t5 j" \6 x
to update-credibility-list6 H0 j% F2 U1 y
let i 0
0 l: H7 h8 W% u$ A. M( U- rwhile[i < people]/ X$ d. n5 j8 Z1 _# [
[
. i% |6 \4 G& o% y8 xlet j 0
0 |% \* C, i) f) Mlet note 0
* O* ]/ z/ r1 i; E% }$ o  a2 Mlet k 0
8 U5 Z: q9 t- m5 [2 ^) }  g$ d;;
计作出过评价的邻居节点的数目; I/ q- a. ^# `' a. x) K" q# o
while[j < people]
# F7 U# o% L8 ]* j& j! C. a% s0 x[" e- W; P  e) X( I
if (item j( [credibility] of turtle (i + 1)) != -1)
4 M+ \! q3 P1 X' R1 {4 j/ t;;
判断是否给本turtle的评价质量做出过评价的节点
, x3 M$ R) I  T3 U[set note (note + item j ([credibility]of turtle (i + 1)))# Q( g7 c+ ]/ s, U' D" ^* R# E
;;*(exp (-(people - 2)))/(people - 2))]

0 D$ M/ u; \8 mset k (k + 1)
' }! v1 |- j% {0 A/ D]
4 u# W; o( D6 c% Lset j (j + 1), o) [3 \- J; S& [( I0 H8 C
]
5 c  Y* h: F1 C" r7 j3 h3 iset note (note *(exp (- (1 / k)))/ k)
7 t1 Y8 _9 {9 Lset credibility-list (replace-item i credibility-list note)4 m; X" `5 y% M7 A- c
set i (i + 1)
4 L* J" {% f" x  z4 {3 w], y8 v9 j8 e! s) a4 M9 x
end$ O2 d8 T6 h% e3 p2 s4 o! N
: \1 X4 Z6 d, E
to update-global-reputation-list: A* c6 C, Y5 A9 A: ^! U" U& }# |( g
let j 0: |0 c$ m  M$ r* [% q6 S3 C; P
while[j < people]
8 U' {  ^- {2 X  ?0 A[8 S2 L  s+ [1 u' ?
let new 02 d$ h$ O! n( x+ E' u
;;
暂存新的一个全局声誉8 ^& G' s3 R" P6 U* Z) c: |# W2 u
let i 0+ G) |" }# {5 C2 H: f/ X
let sum-money 0
3 x: s7 K' S: ]* S1 zlet credibility-money 0( H& k9 Y) c7 t
while [i < people]% r3 @( K$ c4 {# v. d. n
[
: y. V/ O, G3 R1 @; Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" @$ [) n+ W% T7 ?. H; ?4 [* C5 ]set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ _, Y9 \" H7 u7 C  Eset i (i + 1)
3 A; J0 M' E( m' ~: t]
$ \( y; B0 O8 |" M/ Glet k 0
9 B+ p: I+ P8 E2 ^7 |let new1 07 M7 A+ Y# T% T8 {% M6 s
while [k < people]
/ {0 d, v) E" ]% R' @[3 K2 Y/ X4 O9 D( w
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)
- k; X4 t! W9 d4 W- t& o+ i, Y# a! \set k (k + 1)3 x: U8 o3 G) i- J9 Q- c- o6 N$ D
]
0 i* i; C) d& F- k! D; U/ F" Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / N3 v+ a, v4 c, A0 }
set global-reputation-list (replace-item j global-reputation-list new)6 p7 d- R2 v4 u3 X
set j (j + 1)4 u  y( E8 M) i
]" }7 A9 Z1 Z- b* K  s8 R" O
end
1 f! Y% P4 |- c7 H/ \, O4 b9 Q4 V: f1 d5 |
. n0 b  f+ G: y8 ?% N( V

) m% n8 j6 K; @& c( bto get-color
4 C& j$ y& Z  H3 r
( N, l  \  Y4 x7 d& R+ T5 zset color blue
5 a5 }/ b! L3 G/ U! V
end
% V# v0 G* g$ a) g' T' c% Q
/ ~+ R7 p" }& K3 P, Eto poll-class
7 G0 O+ ^" r3 Iend
$ L) D+ N7 O6 t2 M
8 b; c: z; A) z  g+ t) J3 Vto setup-plot1
4 t2 q. ?. B8 A$ x. [; L/ x- R3 l2 Y: s3 s
set-current-plot "Trends-of-Local-reputation"

8 V# s' K( k. C% j3 u3 d7 {; a( \: g
set-plot-x-range 0 xmax
) _2 K4 C' T" Z+ T* B

7 C0 _% O- Q* o5 |& t& S* Hset-plot-y-range 0.0 ymax

! h) g7 t' h! V7 Vend
. e- D. u2 G4 V9 R
% H# F7 P7 Z' H' V( h5 G  nto setup-plot26 y7 C& A/ L5 {. s+ m6 Y" i
6 s: ?# y" T4 c( t2 j. W2 D
set-current-plot "Trends-of-global-reputation"
( j9 e7 {# `1 |* f- a+ ]

8 o* I- g$ l3 B9 S* X/ N  M3 E- J: Aset-plot-x-range 0 xmax

" \9 p+ z  v  h+ j  ?2 {/ M7 a  X4 H( J2 b; B
set-plot-y-range 0.0 ymax
# k5 L2 x3 o) B. _
end, L, P) H: Q1 y9 p

; O2 T4 H! f% y( F3 ]* I7 ato setup-plot3
7 a' h& I1 `+ }3 I( N5 Q: L* E8 y  G6 w
set-current-plot "Trends-of-credibility"
0 A( i* f. t% K; l& C  L
! B+ p  c" b+ I" N" L0 |
set-plot-x-range 0 xmax

( L8 W% n7 O0 q7 p2 ?8 |7 W7 W) w# h4 [
set-plot-y-range 0.0 ymax

: A; }! p% Z, ?+ g4 g5 A* }/ gend
8 T6 k) E$ w1 m& s8 Q8 O
% W4 _- X$ v) hto do-plots
7 U( f" ?& _* j* I& tset-current-plot "Trends-of-Local-reputation"( g' f7 z" ^* f& O9 ]5 C
set-current-plot-pen "Honest service"
9 W5 s4 M) e, \- y7 Pend2 }* H3 b* x3 M5 L7 K; X8 ^

& L" N2 s) f7 M* Q; W[ 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.) m) S( z2 w3 H- m* a

; v+ v$ e0 T) b( ]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, 2026-1-13 15:40 , Processed in 0.023511 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