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: 17660|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 {( P5 Y8 \9 h: a/ @to do-business $ S' q! Z  y  n) z4 J% m& }& n2 u5 T
rt random 360
1 y. o% `5 p6 \7 P3 M fd 1
& [* G; N) ]$ F( C: _5 g ifelse(other turtles-here != nobody)[( j0 d5 m( x, @% x4 @- M
   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.' W' D9 t. C# Z9 Z1 v
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    5 k' C% |5 |5 r1 m( G% a2 V
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
' S7 H* \7 U  Q' A" Z7 y+ i   set [trade-record-one-len] of self length [trade-record-one] of self7 G  Y! E& H& ?0 ?
   set trade-record-current( list (timer) (random money-upper-limit))
0 b8 s8 @. O2 H/ n- M1 v: Q$ V* l0 ?- N( t
问题的提示如下:7 R7 Z$ k6 B+ H  L/ Z
+ }( n8 u8 F: ?: r4 A
error while turtle 50 running OF in procedure DO-BUSINESS! H+ w) ]9 N( b7 M9 v
  called by procedure GO, k9 f, N8 c0 m+ e, o
OF expected input to be a turtle agentset or turtle but got NOBODY instead.6 `) c" f, t4 C2 v
(halted running of go)
$ ^5 O% m7 s0 H3 o2 C" r
9 g4 _; s! @! B6 B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~~
6 @/ ^; K1 l" F; 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
4 z% e  U( R5 Rglobals[
0 @; \& _2 K' q  `; X: Dxmax
  Q2 z9 h5 S2 J7 ~% ]- s6 _5 I* k3 zymax
$ K  O% `# B) w  oglobal-reputation-list- n) u+ B; x6 ]; V; M+ @0 c/ D

6 Q4 e7 ~2 p+ u" l) x, I/ X;;
每一个turtle的全局声誉都存在此LIST
; u% H, n' T3 a" W* |% Q3 Bcredibility-list
8 @: Y, T) c* D3 l: h4 S;;
每一个turtle的评价可信度
/ n+ @. ?- B$ f) ^% F& H; R+ V. I) Jhonest-service
* |4 s. A1 I2 L& Junhonest-service* d5 L( ?4 X7 D1 C. ]$ M1 O
oscillation
3 b; ~8 p* X! M( i& j$ Q! Mrand-dynamic
' a5 h8 k, p4 [5 _8 V) l]
/ l. j# j' b) X
- v6 A) K8 {( X2 {4 W$ A5 Y' q6 i( fturtles-own[
& T1 W6 h" y7 T0 |, Etrade-record-all
* p4 i5 [3 {. D;;a list of lists,
trade-record-one组成% W5 [+ O: c3 |7 ~3 f9 f$ C: r: v
trade-record-one
2 Y* \0 {/ F7 V5 @3 P4 l; M;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录( v( S. a9 m+ a: X1 W

1 Y- V5 E" @# k3 J% \: F* m;;[
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]]
1 Z1 z* ]) O# P3 W" j' Rtrade-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]
+ i* _: |1 O5 [  w5 X6 m4 l# ycredibility-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
7 q7 Q; c! Z. ~' J9 k$ nneighbor-total
  @( Z* i) `4 Q  R;;
记录该turtle的邻居节点的数目
' r* o) W$ \1 r3 R6 vtrade-time
; l" m& c; @) w0 T9 p0 R;;
当前发生交易的turtle的交易时间" a8 e  {& D& Q" b9 {" t, X. `* e
appraise-give
, {! r0 a$ M4 U1 a- g6 G6 k;;
当前发生交易时给出的评价
) ~* u8 P0 A) D5 K# u) c& I' sappraise-receive/ v9 d$ O' Y) @" n
;;
当前发生交易时收到的评价
0 ^/ ^4 d7 X% K" `8 f/ Oappraise-time
" v3 G7 P' D4 D. ?: G" g/ P;;
当前发生交易时的评价时间# A2 u$ S; T+ [$ F& H8 q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, |4 {$ Z1 J' |+ J/ ?; g
trade-times-total
  ^) R- V- Y; e+ j;;
与当前turtle的交易总次数2 ~- O) [+ r$ c! a
trade-money-total3 i% o& e( D" l+ _
;;
与当前turtle的交易总金额9 B7 u7 m% R; Y# i* Q! I7 S) S+ Y; C
local-reputation
! }6 W- P  X, cglobal-reputation
" q7 c0 K: ^. j$ S# b# gcredibility  ~$ B! W- w9 d4 e8 T1 e' c( ~
;;
评价可信度,每次交易后都需要更新
1 }5 j4 }; T  C8 |1 T4 G' I/ bcredibility-all
' [  J' _1 s1 |) z4 d2 a+ E; F# K2 H;;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
- X& H8 [0 j5 O7 \2 K
$ \/ i) \4 r: A* |6 v;;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
  V  N3 V6 {( c7 z# V" F% @+ d) kcredibility-one
3 {" ]$ i) n  \/ V0 T. R' y. x9 n;;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
2 }+ j4 @7 t9 ]8 o0 zglobal-proportion
# ^  I$ i+ R7 Ncustomer% g- s5 ]) V/ x- h, r/ l/ J& b
customer-no$ T# x) l. k+ l6 y/ T
trust-ok) J7 C; z3 V4 C" @6 B+ c
trade-record-one-len;;trade-record-one的长度& v/ e' `3 ^2 U, O7 b" X
]; ~- l& W5 E0 {: }0 P/ B

$ R$ j) E3 B- Y7 z0 ?9 Y* v$ x# C;;setup procedure& y5 _+ P" r) v# @6 I7 j4 n
8 q3 n  X! L7 Q4 }. w- A: y  A
to setup
: t) R; Z# [5 `) c* Q
# a; E$ |$ J% Kca

# |/ Y! A# j" ~! G; Y1 k0 j- z9 P8 s- N( q8 n5 `1 }7 }4 g) J  B4 S
initialize-settings

5 u6 g4 ]; `& t! r! R6 q
0 p& h$ c) p0 ^crt people [setup-turtles]
7 V3 v$ M* r: l% \2 g6 n' g2 m
6 S" p# W+ ~% r. A5 X" T
reset-timer
: y' F4 {4 \# M7 M' e4 W/ K
6 B$ o# K* m) p4 _; W/ S" ^
poll-class

% x+ C5 J1 w3 X$ Z2 }, s* ?
% s( D/ I3 ]& L2 Nsetup-plots

, ~: v! e0 h2 R) G8 ~0 ~# q2 p7 P% j# a0 N2 U7 a) U, V) Q
do-plots
: R2 {, Q: z; {6 T1 K# A
end
5 S& Q6 [3 o2 V# _' h: {/ r  a/ V/ t7 S
to initialize-settings
- M2 F, D6 r  @& `3 {& c5 M, f( Q9 d
set global-reputation-list []

$ V: _' |) V( j2 F- S/ C5 D
' Z! }3 B3 @$ x2 bset credibility-list n-values people [0.5]

2 N/ Z- h* ^$ P6 z% v7 d% }: Y  m6 ~9 v5 n
set honest-service 0

7 H0 F6 P! l2 I, n8 x: m7 s( p; J, [* G" z
set unhonest-service 0
+ u8 v2 A/ }5 t5 N4 \7 x1 L2 d

4 }  H7 H  h  k. X. T- Gset oscillation 0
# R) r- u0 p4 A- t0 K
+ D1 s0 V) f4 _% x3 |% C
set rand-dynamic 0

  t/ A$ N; P, f: L0 Send
- p4 q9 v4 W2 _$ s! o$ h1 f
( r7 K6 |' r' s# h" G9 Fto setup-turtles
* {/ r+ W  Y, e' a( D9 fset shape "person"2 J5 y$ S6 y3 f% C. u& @
setxy random-xcor random-ycor
2 D3 B& b2 n$ v% V- _set trade-record-one []
) B0 t% [0 \$ r! s

1 }5 r2 T0 u, T! k* E: kset trade-record-all n-values people [(list (? + 1) 0 0)] % j7 n  I- e4 l9 e

$ H4 j8 h3 w- X) L9 a1 q( \set trade-record-current []
+ n! v1 ^4 B; Q) Xset credibility-receive []
6 W% J+ ?2 H/ f; d' F; K2 E) ]set local-reputation 0.5: W  h/ h4 D  N- ~# ~2 h7 W: H/ X
set neighbor-total 08 q( \! ^  m+ Y/ m: l* [) d
set trade-times-total 0
3 R5 I- T/ p, }! Z3 Z! wset trade-money-total 08 L* Q0 J$ ?& R  ?, ~( w
set customer nobody7 T& N3 _' q: {7 M
set credibility-all n-values people [creat-credibility]
: G, j* }) p7 s$ [: d1 o, G* |  Bset credibility n-values people [-1]
4 K* @! `5 Q8 X8 }get-color
. L8 {+ |" J- y3 H  P2 r! G, g

* w% H/ _6 m0 N" lend1 F5 q7 |$ k+ J" ~. L1 o9 M

- j9 t% {. Z  k! i  W" Z; ]  ~) `to-report creat-credibility- I9 G- ], U  R/ y4 f; z# P
report n-values people [0.5], h8 t+ u+ b0 P+ p" w$ D
end
& E1 o8 i9 L8 k
8 c8 W/ m" `4 ?8 R4 y+ lto setup-plots9 ^' n0 o' }' Q( C
! r  P9 z4 @7 B3 B2 G
set xmax 30

: `. W5 A4 d- \3 ]) ~; m2 @# s" D
. ~3 [  o- F: K! B- i- r" d/ L' o; Cset ymax 1.0

' _# ?+ z& B7 F* ~
% Z/ Z; }8 J: H' ^clear-all-plots

/ M  e1 A/ O7 U# e
4 @$ T- P: i+ Ssetup-plot1
( j' [0 X. ]* o  m4 N( y' N

, V5 W' p% x) q) Fsetup-plot2
; ~- d( l5 D" N4 ]+ G

. e+ R# x4 w# b& l6 }0 E9 Bsetup-plot3
/ N: [8 p' o  U7 A
end
8 ^8 P4 @' e- F, M
7 G" m  h$ X' n, m1 f, M;;run time procedures
5 n7 x7 c6 m  k
# S# C+ X, X; J" F6 @) Vto go8 m* d2 I" i) O
. v& C# ?7 ~5 o2 u" k! L
ask turtles [do-business]

" s0 x6 `( ^1 _) a1 ~& nend
7 i  C  y9 O# b4 T6 J4 a7 Y
9 Q4 X6 a: p& }* Z7 o8 pto do-business
" {* c% K1 y% p5 s
  @, B- s7 X3 ?2 k! F! g0 k0 t
* P" j5 B; k: H
rt random 360
0 F" b' V- E" i9 e- s# S" o

1 Z6 W4 m1 Y! x/ d! R: g$ t! Nfd 1
7 v( Q8 i5 j, ]# U; P
2 w1 q2 a2 R: {
ifelse(other turtles-here != nobody)[

) _7 G5 j" E% @
/ R7 j6 d/ t% A; y3 \! v" @set customer one-of other turtles-here
+ I" j" g( A! G  w

3 g! `+ W0 o8 ^+ U1 |;; set [customer] of customer myself
7 _  y  b2 z7 n& n4 w

: }6 P- F4 L7 h3 j: e' z2 vset [trade-record-one] of self item (([who] of customer) - 1)
5 [) m9 P4 U1 I6 f7 m1 P[trade-record-all]of self
. F# q" {! D% p* {/ ^, d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

5 |8 c: b& E" V4 f) {; F+ ?5 B5 i% d; d* i, x1 Z
set [trade-record-one] of customer item (([who] of self) - 1)) S) }1 D9 q3 V0 @* I' u# E
[trade-record-all]of customer
, q- y5 _6 q1 x
1 a! J' p% Q" D  _# Q  `% V$ w" C
set [trade-record-one-len] of self length [trade-record-one] of self
! L, i: I7 h) K; e6 I5 L
( c' p0 M: G0 n4 W8 v* v2 u
set trade-record-current( list (timer) (random money-upper-limit))

) n1 u6 y- W( _% {' T, E# e. t) X
! n# i- T. ~6 p8 Nask self [do-trust]
7 p0 \/ g- R7 v& A. i;;
先求ij的信任度
) d2 h; A8 B2 |, k: D) c3 i# Q2 A5 O9 J* q9 k5 i
if ([trust-ok] of self)1 |- v$ Y; k* \" ?/ [" z8 E
;;
根据ij的信任度来决定是否与j进行交易[
4 h& J5 X7 {. M2 b& T# g3 Yask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
& _. O0 j- b" o4 s5 Q0 I, B  f0 R8 p* z
[

: @& p7 P# T1 U9 @4 f& p* E& R' x; z+ J+ z  j; c$ x) a4 L, S
do-trade

( O$ `' j/ u0 Q! o, [) @6 e  e: G8 \& C
update-credibility-ijl
$ V. ]; @# _; J

: F4 T0 U! U  F7 Gupdate-credibility-list
# |% @) Z- `, o% a

# x1 w5 V7 D0 @& E+ u/ Z) H
$ A% f# Z! c5 x/ s/ L- e; @update-global-reputation-list

/ X. d' r9 k+ `5 l
* w9 [' b$ l3 f7 A7 {* Gpoll-class

% q/ Q% o3 M9 S- U3 {- a+ n5 X
0 A$ ]- A3 z9 P& `get-color

3 H7 p4 b/ W  d0 F  G5 ]) \& e! Y/ D/ m& P* [
]]
$ |& H) }8 s# v( ~* t1 S
+ f) _7 |5 X; A; p: N$ {! b0 A) I;;
如果所得的信任度满足条件,则进行交易
" G" ^- ?$ F8 g4 s5 y1 Y5 J% i1 v
) J: T- L) X2 z[

" v) G7 F# g6 U9 N* H5 n
( z/ o" j) W! s. K8 art random 360

( r. p, G/ F7 B$ s6 o6 w* k
& b8 E9 k1 o1 a# _5 a. N) Xfd 1
3 j2 u( C  b$ r
5 y, Q# r. ~9 l0 E
]

0 b/ h1 e+ Y1 q4 u: \/ b6 i3 z; ~4 ~  j
end
& P# b0 A" Y6 j- a/ U) n

" c' @. E% S! Gto do-trust
- r; }2 ?! v$ xset trust-ok False
  f- D6 O: L" T9 S
6 h; c; D' K' d% Z

/ e# F9 X- v  s. f# Y2 P9 Wlet max-trade-times 0* v( ~" F6 r* T/ t; l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], r- ^. q* \2 y: h
let max-trade-money 06 `: U3 T) U# l) o% ^4 t
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# k1 S; U5 n: B6 q( ?# @
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 B& F, `. i: a) U- k$ L' @6 }2 C/ T2 l, H& s; x1 s, ~# g* z" q/ a

% \& C4 {7 Z! [. b+ s6 N/ \) Yget-global-proportion
+ g+ `* O  \2 N  l( p* llet trust-value+ {8 h' l# O4 @0 y. k  N' {
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)
0 i/ T: l6 B0 [
if(trust-value > trade-trust-value)
# R7 x8 h5 m( K/ y9 X[set trust-ok true]
$ f6 O/ f* A- ?; c; S2 ]end
" R! \/ b( h, j5 l4 F# t# L4 R1 k" c" @" g3 i1 Q
to get-global-proportion
! i  K0 s, z! _) B, lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 M, U8 }( Q/ B5 w" ^& J1 m* Z$ n$ @[set global-proportion 0]: q: L- G0 V) k0 B0 l7 m/ c  |
[let i 0
# c! ^* k3 r2 k0 s: Flet sum-money 03 e: X4 w/ Q$ I" ~  R0 v9 u
while[ i < people]/ w, P' t; a, R. @% K
[. B# [$ F7 ~& X5 C- E3 \% i
if( length (item i% X: [4 d4 I5 r5 e
[trade-record-all] of customer) > 3 )
# l0 ?; J+ M, K0 S. \
[+ o+ G& T! D# @5 }2 n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* U% {7 t; @- v- m. Q8 I; r4 V0 k]
& b5 g$ m$ @. M( n]* B+ B4 b, W: `' H% L' M
let j 0" i  a' E. o' N" H; |9 S8 u' {
let note 0
) |9 |2 u- [; y5 X: c: Awhile[ j < people]
! ]) \* l4 n- G[
+ P( o3 g5 ^" j! sif( length (item i% h( c. z9 c# \6 F/ x
[trade-record-all] of customer) > 3 )
" L# H9 M9 q7 }* R* b% h$ D6 K7 [
[; I- x% k/ \/ l
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). q, r& _' l% N: H5 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 c0 o6 w5 [* W$ g' z) w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 c! I$ p( A" n1 X4 O]" u9 e. _% R6 {. [. k
]
7 G$ U. y8 x5 [$ d6 X- fset global-proportion note
3 R9 _  L0 o7 M) U: j, s, C]
* J3 X; U2 e0 E3 Vend, H  W' Z$ H1 Q3 g0 h4 l& ?' K
$ c3 N: u  i, Y( D. E. e/ w) q) h
to do-trade
" `3 \0 E. I8 }/ y;;
这个过程实际上是给双方作出评价的过程
/ D0 F+ L; j( g4 [set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价8 f# Q) A. x6 s6 ]' @: v- J
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
) [/ b2 N- K5 P9 p6 Gset trade-record-current lput(timer) trade-record-current
1 P/ _" b1 v( j  \( r- X;;
评价时间
* Z4 p- E0 z" Gask myself [
7 E, A& w6 I0 m1 D$ g, nupdate-local-reputation& x: V0 A/ L4 _9 u9 ~- M
set trade-record-current lput([local-reputation] of myself) trade-record-current# e+ M  f6 V% X! l
]
9 k  c) R. b5 F& j# `set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 N: z# Z6 V1 }3 h6 r5 I
;;
将此次交易的记录加入到trade-record-one1 ^' B$ {' z( y% z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)  v3 Q% q2 y/ X# L/ l& J
let note (item 2 trade-record-current )
. G0 {# J- \4 k( R, K2 B+ {9 Mset trade-record-current% |+ E" q" N; {0 u2 \0 Y
(replace-item 2 trade-record-current (item 3 trade-record-current))

8 f* R1 J' |/ ~& {4 Hset trade-record-current
! n) f# N8 t8 f* C. o& E(replace-item 3 trade-record-current note)
" d: E- ]5 E/ P6 a3 L; ?
# u* a5 A0 }1 R# h

: l  b: v/ j/ J+ rask customer [. F  Z- Q& L$ J# p
update-local-reputation
0 p/ `3 Z6 I1 J3 Y8 t0 \9 Wset trade-record-current! p0 d5 X8 l" N% M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 R5 S- Q" k3 }* r# b. l
]  _; f  I" `) K) Z  ^; l

; {2 f8 S5 D, ?+ ]2 b: ?: j
' k9 H  T- x; s2 I: j/ K# o
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ W# w% ?3 b& q1 v

& s- X2 I4 C  s4 v1 bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) e& u% D; a  d;;
将此次交易的记录加入到customertrade-record-all
7 i( }0 [5 p- {4 a2 {3 U1 _( hend  b+ y) M! Q* W# V- d( Q1 S/ P
7 U; K8 R1 W- a4 N0 f7 `' W3 c
to update-local-reputation* F+ m9 L. C5 v7 Q  d3 u4 h9 U
set [trade-record-one-len] of myself length [trade-record-one] of myself
  y8 ]0 {0 q3 e2 T( ^$ Y. K6 a7 U
* u3 X* z/ h) I8 f6 m! H9 a
;;if [trade-record-one-len] of myself > 3
: O, m+ r) C0 ^0 m. m
update-neighbor-total# [. m. {: q2 X8 R% s  B: X
;;
更新邻居节点的数目,在此进行5 ]0 h, s  D/ J' p5 L8 q
let i 3
& l" i0 G0 H4 J* M  K" X: Alet sum-time 09 ~7 E6 q. S: w( [: @" R7 c/ e* T5 e
while[i < [trade-record-one-len] of myself]
" o6 d) q8 Y$ [8 W; R: u% N[+ E' W4 y9 {2 G1 b5 i
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! w% c  U0 m" w$ [+ l
set i3 p7 r% [6 o$ g$ {' P* m
( i + 1)

8 L2 l1 O% p) x% y: E" |) t]
) v3 o! b, n% F8 u4 [! Mlet j 3# _9 T5 v/ I2 l: w8 k; L
let sum-money 0$ `& H; v! w  p: O# T4 U+ i
while[j < [trade-record-one-len] of myself]: N: o6 V: ]! N% O6 g" \
[
- F0 s! A* ~0 M$ s* ^  \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)
' m9 ]2 G( V! X# F8 P  gset j' u+ J( O$ ?9 a$ d# K# X8 z' C
( j + 1)

# [7 x; ^3 v. Q/ M) ?]
7 X5 W' c- n; I" ~2 H/ W! I4 m3 nlet k 3* ]* z) h' D  i* Z& j5 z# ?- x3 ~: t+ t
let power 0
6 m! t( `! u; Q- \: u3 L4 Hlet local 09 \( |' v, I: G- j$ B
while [k <[trade-record-one-len] of myself]8 Q  P. ^9 `9 h0 T7 C; W
[9 ~$ F$ z) x% c7 [2 Q' |( g/ d, Z
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)
' t' X, Q# }+ Y5 P+ Y% e+ f4 Eset k (k + 1)
4 x. }  W/ |1 h, B! {]+ z1 g1 P0 K; F
set [local-reputation] of myself (local)* V. |! \8 u7 J. C% c: G3 ]
end7 K+ {+ n( t% a  v) d( J! P
2 I2 }" J4 w/ B# Q: w3 w
to update-neighbor-total1 i, n/ e& w* @4 D

0 B7 j+ _; b5 q/ f% p1 Z) C  Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( E" }! x' _6 x
0 c- a0 B2 q9 T& j  {
+ ^6 p: e1 T+ S( k
end; k0 f1 t, Y: z
3 j; I4 ?' V4 n
to update-credibility-ijl 4 A  i( X: r3 v; \8 t: I6 w% ?4 W
- {/ P. `7 }7 b0 z8 U( j
;;
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。. s% \+ w4 P# x; p) c
let l 0
1 H  g; F8 a/ |while[ l < people ]  u  w- s4 q& t5 t6 V% M9 }/ {# d0 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
; |; I) k2 y. v5 }) R8 j[% J8 |6 _( g/ v5 V! I! ?; E5 \
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" A! s4 O7 A4 V$ @if (trade-record-one-j-l-len > 3)
8 J( k8 c: P* h* W( j8 P4 Q( ^0 s' K[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- i; A$ N7 Y; i- U9 c6 j* |
let i 33 `1 R, T( [4 x1 |2 g7 {( u. t
let sum-time 0
. d4 ^8 \/ j! l% fwhile[i < trade-record-one-len]
) Z+ f  H0 L* q[% d$ K- ~5 b2 X; @+ Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 Q$ L1 R% m# C; f3 U! [( y$ \% K6 y
set i
5 F4 G) h) ^3 J5 a" A( i + 1)
2 |; E) i, j$ d
]
8 Z' n0 p. }+ z1 w6 t$ Blet credibility-i-j-l 0# x) E$ M8 t, j# b0 t4 A2 |- z* @
;;i
评价(jjl的评价)
% u7 Q/ M- M& N0 e0 B$ Ulet j 3: l7 p. \/ a. a! {/ C: |
let k 4- ?9 D+ j& ~1 _/ }% ^4 c2 o4 W
while[j < trade-record-one-len]. r. X" q0 J1 O$ ~- a. J6 U/ }
[
+ ?) z7 M4 m' ?' Swhile [((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2 t9 S6 a# v4 ~/ F2 P
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)
" t5 ?9 a: p9 A/ pset j% R5 e# M5 P4 {" Y9 y- \0 I3 W
( j + 1)

8 g7 l8 w+ v1 {  M4 K" a( X]
- m9 `, u( P& s: B0 V3 Z( \set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))8 r8 S7 r3 @" P: P- Q9 H
* l" Q0 U+ S) ?  i4 d5 _
3 D0 y4 }4 f7 R' \  `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))/ w% e7 Y- S5 o8 Q- H# F
;;
及时更新il的评价质量的评价
  z2 i4 e2 `# p9 wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) ~6 {# ?4 i! `0 F4 z  Y8 g5 Kset l (l + 1)5 r, Y4 W$ n9 L+ v+ R
]) O/ F. k; S; u. [" {
end
# K' s/ l  V. q3 U6 N6 Q5 G, q( m6 C& C* {. S- B6 ]* j* D; r
to update-credibility-list2 u3 M& s+ n) p6 D, U$ i1 s: u3 x
let i 0
$ @. N# t, w5 R8 Z/ lwhile[i < people], _4 `5 d  c- z" c
[+ E* Q  q! t4 w3 ^* Q
let j 0
$ F, P# l2 v# V3 ]3 Rlet note 03 U4 N0 Z5 |% ]1 k
let k 0- P! N  K% j+ m! ?
;;
计作出过评价的邻居节点的数目: r8 L$ u2 y8 {/ @- u& ?) x
while[j < people]0 h" [) F8 \! |, Q& Y
[
. {" N, \" {! `4 iif (item j( [credibility] of turtle (i + 1)) != -1)
  I' f4 I0 V: w8 H: V;;
判断是否给本turtle的评价质量做出过评价的节点
- S* ^' Y# c: N0 u" Z[set note (note + item j ([credibility]of turtle (i + 1)))& m9 }. H4 t; Y. @1 Y: o0 p5 ?
;;*(exp (-(people - 2)))/(people - 2))]
% J/ W( H6 n- q) O; J, L" o5 Z
set k (k + 1)
: G! {# {6 }2 i( E5 []1 t9 B* t2 R8 C7 i7 F4 l
set j (j + 1); o& i) t( j7 Z
]; v+ O: g! Q7 u# l% j/ o" o
set note (note *(exp (- (1 / k)))/ k)
! z3 P) Q9 x5 Q( L$ j* O9 z, Kset credibility-list (replace-item i credibility-list note)6 G" y; r# }9 D0 D1 g
set i (i + 1)
6 p0 b6 g5 F  l" P]
+ E! z" F0 |% i$ u2 l0 Zend
5 G% y* n, j( L) e; a5 ^4 ?: E7 s
to update-global-reputation-list. \8 N9 {+ j4 c' s5 }
let j 0- G5 r* i0 v, ^3 x5 e
while[j < people]$ Y, R& F" G% W9 Q+ H; l. y
[
# o, q# N7 f; ?0 R) blet new 0
! {4 h+ i0 B: {# ]+ N;;
暂存新的一个全局声誉
+ i. Q) \/ O- A$ Q6 N. {" plet i 0
# K- {& q9 q& z* I# P4 N: Mlet sum-money 0
8 \0 m7 J6 D6 R; \$ p/ Clet credibility-money 0$ J1 H6 t/ X1 l2 e: Z
while [i < people]* \3 _8 Z; ?$ G
[2 s. J/ D8 k( |1 t4 w1 G- a% ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" L+ w0 ?6 b6 y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% @, @7 u1 N, v  g: ~: X# fset i (i + 1)' E) t# O3 b! s# g
]
! {( z  @$ S) ]4 |let k 0! l, x. w( y; `
let new1 0. @  g0 n% O! n7 y
while [k < people]
5 t% B+ B  I2 h[* ]5 T% B% B8 s; G; f: L
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)7 ^  @% L* _7 W1 Z4 V
set k (k + 1)  O6 D3 S* S) _
]: ?* Q5 m1 R1 W- S  d# t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 K; v0 F% _- l2 c- n7 Y) N  O
set global-reputation-list (replace-item j global-reputation-list new)5 l1 G4 H! @" \7 v( ]- |
set j (j + 1)
7 M6 c$ ^' c- ?8 ?- A]
5 e2 }0 v8 r/ @( [, j' yend
1 Y$ ^  K6 x9 j5 v& k8 j7 f2 ~/ q: g. a0 I+ \- U. ~; N6 j" ]' n

2 ^" W' O% X* f3 Q" w% Y  B1 j1 A% [; r3 r) k% H% |
to get-color
( r2 u: K2 ?+ P+ I/ W+ _+ v  l0 O" J+ n: ?$ U& ~1 D
set color blue
! R# C0 ~" _- p) s4 n6 n
end
- ~) U4 F! i, O9 O2 x- a) B$ F4 [% o" H8 p6 P" E
to poll-class, n- u8 g% V( ]  C
end
' D' H. j4 R! [% g7 p( k) M
- m/ I  ?3 V! R7 Gto setup-plot1, C5 D  A4 W6 |1 `9 h# H. ]/ Z

# x! t; l  B! h: gset-current-plot "Trends-of-Local-reputation"

/ D5 J. C4 R2 F* B- l; O' x: Y/ l) F
set-plot-x-range 0 xmax
/ k9 [8 A1 k, m$ q9 M7 M4 S

2 ]4 j7 j, h  p& ?- P( R* w; n$ fset-plot-y-range 0.0 ymax

% w. L- o0 V: @1 Cend
3 ?4 A  ?: m: h0 O
. {! X3 H7 B" B4 U$ uto setup-plot2
: y0 S* |" A% V3 u4 X- s. C: }' n' @$ `) m, e  H: S% U
set-current-plot "Trends-of-global-reputation"

, j1 t6 y+ n1 S$ l6 ~7 ~, o
4 f; m6 ^, h5 h2 cset-plot-x-range 0 xmax

  z  @6 ?0 q) g% ~- ]% [7 V4 c' J4 \$ ~
set-plot-y-range 0.0 ymax
! L3 y/ d/ q* ~8 W' v0 o5 _2 J$ \( X
end: c& U& H/ e% d

) @  m: z( X4 r9 }. `to setup-plot3; U) M/ s0 w; \1 k- h
! g* a' f- a! c5 T+ t6 B! Z/ @; G9 U
set-current-plot "Trends-of-credibility"

% p# N, `$ A* I3 g' O
1 ]9 i+ L& o; o. F+ Y- ^set-plot-x-range 0 xmax

( q7 T6 w8 V) ]2 {% }) O2 H! \% p  S" b! u
set-plot-y-range 0.0 ymax

( y  z$ N7 X7 M' }) Cend
3 V7 E" A6 B4 d& z) d8 C. L
) x' g9 B5 h" fto do-plots
2 B$ ]1 w6 m9 e! h1 @set-current-plot "Trends-of-Local-reputation"# z1 C+ E0 }4 p- G( I, ~
set-current-plot-pen "Honest service"
* R' N( E( t  ?3 Mend
: D  R& d$ `& Q
- a  D3 |9 H3 p8 d[ 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.
) e+ k% @; A+ h! k
2 s6 l7 G! W2 P, A" M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, 2026-8-20 08:10 , Processed in 0.020793 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