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: 12914|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:
" c' e8 [" B7 P1 }- Q# Y* nto do-business 1 T* t9 Y4 X  v2 Q0 [) {
rt random 3604 B7 w* w# E9 m: U) j) q( V! b2 p0 {
fd 1
* g( e! n# A% p$ Z+ b. E ifelse(other turtles-here != nobody)[
$ Y( y% I- o# L* z! W: S   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.' h. `9 R2 c, _: T- D
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
* @/ H8 C# u! z  l& j5 i" e) \  T   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
' E2 i4 y+ z, ?+ C& `5 |# V( N   set [trade-record-one-len] of self length [trade-record-one] of self1 i4 X% X0 o4 n! y) H' v
   set trade-record-current( list (timer) (random money-upper-limit))
, G) r4 G! U1 J6 x4 U+ j0 [9 b( W1 H: |. E9 E. H
问题的提示如下:
4 Y; o6 R5 _  i6 y5 ?
  G4 m- [' B2 S) ]" s. N  u8 e0 O1 z# ]error while turtle 50 running OF in procedure DO-BUSINESS
" M1 }3 U6 M+ s% X( c  x% O  called by procedure GO
) G  o0 m9 z$ u# _, f5 UOF expected input to be a turtle agentset or turtle but got NOBODY instead., @) m9 \1 h" s# B7 J
(halted running of go)9 x0 @  G0 x/ T/ u' w
) t; g% t9 S9 ^8 N/ p
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~~2 a* F6 u4 R& d# \0 U
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
$ \) G4 ~: L8 {globals[
" O4 B5 I$ j$ E$ xxmax0 H$ I# B, d( ?& A* C- D% m
ymax4 Y1 w5 u1 W' ]8 C
global-reputation-list
) q0 b+ p% F/ ]) ?- O5 c) ?
; H1 R) ?  Z; \' ];;
每一个turtle的全局声誉都存在此LIST
/ M% K4 N) k, i7 Mcredibility-list+ s$ H  l% q  a: Y* P( N- b
;;
每一个turtle的评价可信度2 M) w  Z6 h  G! J. L
honest-service
/ H! W; i/ D( q7 w% munhonest-service3 A7 v- s( v  T% }
oscillation4 q. ~9 X$ u- }2 L+ Q/ d" Y
rand-dynamic
; i& ^) c7 ^% Y$ D]8 |  n9 F) ^; z$ v- H

. b0 H' V, p6 c& X2 o2 N& ?6 xturtles-own[
" m- ^8 e9 {9 G) \& t9 r2 D5 Ftrade-record-all) J* D- D" y5 w3 ]
;;a list of lists,
trade-record-one组成
4 [2 C2 o5 ?1 v! jtrade-record-one
: `/ l% ?' c& z: u;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录: j0 b' n) k! F+ n% M# X
# M/ K* B" _. E- N, v6 G
;;[
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]]5 q, h/ ^, J  C# p- C7 K, P+ K6 t
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]0 K0 V0 v. S4 T5 {- |7 u
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: U7 O  c+ t8 z9 x, A8 B. g8 V
neighbor-total& l/ Y  x/ G) j4 @; a  c
;;
记录该turtle的邻居节点的数目7 a4 p# \7 `5 L' R% k8 P, m
trade-time
) A- T, p7 [$ F, V;;
当前发生交易的turtle的交易时间  l/ R& Q/ `9 L2 j  k7 F
appraise-give
* Y% ~' e" V& T0 j2 e: R;;
当前发生交易时给出的评价% o2 _4 K, g( X
appraise-receive
) U! Y2 u! |/ u( ?8 {8 Y% Q* B;;
当前发生交易时收到的评价2 |( X$ T0 [) J* ]$ O9 ]
appraise-time3 ]. Q: G+ x/ E5 B9 V3 C
;;
当前发生交易时的评价时间3 X) E# }* M: [0 f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉$ S9 G& A* M2 D2 ]4 ?
trade-times-total
3 g3 r( Z& |) D  z;;
与当前turtle的交易总次数
* V# U# x7 L- [trade-money-total* K6 M) O1 I, u
;;
与当前turtle的交易总金额$ a2 K; m: r) T' c- @1 n8 d
local-reputation( y( G- R" Y, X4 s  L# d0 p1 m
global-reputation5 x" U, O! J: X  v' l7 _. @  @+ Y
credibility
; ]- _" w4 C8 ^$ e6 ^- X;;
评价可信度,每次交易后都需要更新
/ a% G2 X: |" M' Y6 h$ Kcredibility-all
# I/ y1 A. D" l. v5 B& Y;;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9 a# Q" f3 \3 a4 E
2 A1 D. i6 Q9 I0 a. d
;;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
! L1 S4 J; s3 ]& s9 Ncredibility-one3 Y7 u8 H+ L- V; N% H
;;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( ?/ W% E% {5 N" `0 m' [6 J; g
global-proportion
1 I9 x5 H' T1 o7 X+ s" Zcustomer1 T$ y) c. d, f% _0 @3 O
customer-no2 o- e) q3 D/ m* f' ]: t
trust-ok7 [  x& w( t. b# t  ~8 l$ Z
trade-record-one-len;;trade-record-one的长度
# u- p# k; t8 C/ E" U$ T( P]' `* Q- G- v1 ?) M6 l% S" x; m
" L! f; @8 c' |) C& }
;;setup procedure- i/ k" z! [$ x# F. M" m

9 t& s. l& h. z0 x! sto setup
3 \3 n9 K/ I' z) w: `9 @, L6 Y3 O$ q/ A5 P* c
ca

/ W9 I  a  _' U& K* @1 P3 u4 r9 k& X6 f7 w- K4 |, {
initialize-settings
1 W! O) J! h7 h5 n+ ]

" ~+ p% J1 `* ]0 s' E6 ecrt people [setup-turtles]

, @! `* H7 i* V. E
1 V9 Z$ }$ {0 V* f4 u" {) Treset-timer

+ t! `, I) B) H; ?' `  F7 [2 y8 i/ J3 q( A$ b
poll-class

/ L. z3 i. @( S+ \
+ K" p8 f% h1 Y  e: h% Zsetup-plots
4 b# ^! h8 K1 A4 g7 x- ]
2 ~5 `* m/ K2 q6 J' B
do-plots

$ l0 i+ ?6 ?0 _3 ?/ E6 E' pend; X# a0 F' f5 q* K
2 D: j, H6 A% {. V
to initialize-settings0 C; I- e) @9 i, O* _1 Z
! _1 A9 e) H: }# w& V
set global-reputation-list []
# n% [. M( \+ Z" L- M$ M

! p% ^4 L+ d4 y2 e: y$ ]9 Pset credibility-list n-values people [0.5]

* h( R5 Q5 P* q6 k' w/ B
1 h- a( g% [$ Q) Mset honest-service 0

6 `4 {7 L" o$ A- R' x* l" c
) k1 o5 [: }3 o' v2 u5 v0 qset unhonest-service 0

6 h0 U6 ^/ V) X, C" j' S5 l) k$ p6 G4 t1 ?6 G9 P
set oscillation 0

- s+ `) K2 ]% x4 j3 n6 a- [0 Z3 K2 Y. }
set rand-dynamic 0
" R+ `: c; z: m, `1 i  U8 ]! |
end: _# _0 J. R. G6 W2 Q

' \7 P4 t$ W- w2 ^& O- [2 M' Gto setup-turtles : T% I5 ~3 E. Q: V8 G
set shape "person"7 ~' @" _. N& ]4 L3 `
setxy random-xcor random-ycor9 r7 U0 E' v2 d# m, y
set trade-record-one []
( _$ c" J+ J8 {( ?1 V7 N8 b3 \4 M

3 ?3 K9 m- M3 e7 r) F, R" ~5 G3 tset trade-record-all n-values people [(list (? + 1) 0 0)] $ u0 Y  H# p& |% e

; {& O3 `! ?0 C, k) eset trade-record-current []! r; i8 [7 Z4 O4 P0 t
set credibility-receive []
& E' \# W9 ?% m* g' sset local-reputation 0.5
* k+ Z# c# P, R1 X! M+ ]8 Xset neighbor-total 0+ ^9 a0 Q9 b5 ~
set trade-times-total 0
, _. N  x" Z6 x- dset trade-money-total 0
( X+ D9 K1 q# P* @& v" j1 y7 c( \set customer nobody
  n6 H, Y3 O1 kset credibility-all n-values people [creat-credibility]2 |' q$ Z+ ~4 P) [* T0 ]6 A
set credibility n-values people [-1]% G1 G- n0 J! C* D' |0 J5 `1 A
get-color9 q8 w9 H( x9 ?5 {/ O$ ^6 M$ |
; t" S: X; k$ v+ J" p2 n
end
+ u. @6 E7 v# |2 n, A. c$ D$ m# t3 C0 D: y8 Y; ^8 s
to-report creat-credibility! ~/ l2 W& S- M9 \/ O1 T9 \. v
report n-values people [0.5]7 B% \; V- t' e0 }
end
5 g( I* E' R. \0 X6 t/ [' u4 l6 p) z( D/ f7 l4 u. Q
to setup-plots
* w1 o; x/ I! N/ U3 A$ \( i
+ Q! [1 c2 ~& _9 g; n: _set xmax 30

+ r! d+ `) q; q) b9 |. k9 [& A+ I+ k# D* p6 A) }$ x
set ymax 1.0
5 k; S% I  y/ B( \1 S% [# U
1 A, C9 c2 c9 W; Z$ Z
clear-all-plots
1 E( c3 ]/ n, n5 c/ k* O) Z$ `" n
& u1 s; q7 b' u, T
setup-plot1

- n" F+ K+ g  t9 t3 U
+ W/ U: l+ |: j% G$ hsetup-plot2
! C2 X, T9 K+ s

2 _2 w1 z# l8 ]" j* Wsetup-plot3

$ p+ }, ~5 D; f/ o' G2 q6 v- S4 `& Lend
! o: H6 I, X" f" N. U5 U8 e; F- `- A) K2 L  t: w; T6 |
;;run time procedures% U; U) |" W* O8 j  V/ b* ~. w; ^
5 l- k; c3 S7 ~/ f1 M3 h
to go, I; V5 s/ F9 r/ y  T3 g
+ C7 W! X- Y8 \4 n; z
ask turtles [do-business]

! l2 ?$ B$ \$ s$ c! I7 iend& b* h  \+ L% i1 Q

" \" T3 r/ u/ N  O# K: S- A7 ~to do-business 0 \2 B! I7 l  d: a, R

& u) W+ T6 h: W. z% X
) M# |; w8 h8 v$ ~& K) c7 nrt random 360

6 y0 [! o; q1 u% g2 x5 ^  g, y7 L5 e
fd 1
% d+ v7 D; u- [3 r

1 ?' ~& [- i) r7 d6 lifelse(other turtles-here != nobody)[

. N4 [) K! ]- J" R
- Y# M! A" D' X  U  O6 u! ?2 nset customer one-of other turtles-here

& @/ G8 _4 K- y# c6 f% b( z2 A* ?" S9 |, R5 d6 L
;; set [customer] of customer myself
# K( U0 m6 {! _9 k& }! w% V2 g% \
) X3 _2 ]3 z( f* ^: g" I. p( l
set [trade-record-one] of self item (([who] of customer) - 1)
6 Q2 a5 ]) D2 J[trade-record-all]of self- f4 Q) _7 I3 b/ r) {6 @
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 l- z" ?8 }+ g7 E" e
1 Z7 ~0 ~7 @4 c* C/ h6 p
set [trade-record-one] of customer item (([who] of self) - 1)* e4 p' N3 o; ?& A, r
[trade-record-all]of customer
2 `. Q, Z0 T) e" h  G# k- L# j

$ i# j. C% g1 Y) a. a  O1 Nset [trade-record-one-len] of self length [trade-record-one] of self
4 ^- L( s% E0 ^/ z8 V8 m3 y

' S4 ?3 K) o3 c. l/ p0 Q% X5 [6 lset trade-record-current( list (timer) (random money-upper-limit))
2 M" h0 `( r# c# D: W6 ~

7 p( |. S/ m" R, P' [' N+ iask self [do-trust]
! D4 n* V6 [, i% [;;
先求ij的信任度2 N$ U# c: B! \- X; i$ ]% Y1 u, l
9 e" M+ N" i& Z& Z7 t
if ([trust-ok] of self)
4 D2 ]  O: v- [7 Q0 ?- p;;
根据ij的信任度来决定是否与j进行交易[$ P. L5 Y& p& P" n7 }
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself9 l+ L) A1 S: M1 f8 y! y2 @
1 A: ?# j5 a8 Z  a
[
7 p& C7 o; P" L) z4 B. ?1 c6 f
1 i7 F4 x7 t8 w1 e
do-trade
- u+ e) }# b3 e/ `; U

: w/ I6 c; x7 i, ~update-credibility-ijl

  Z$ d$ _* F0 I' A0 f( _# P) y5 H3 T
4 Q1 m4 ~% H8 b2 ^update-credibility-list
' E1 a1 M" K& S# p

. \- U' y, X( o: D; `  @8 {, R0 u/ {. d3 t/ B7 G; r
update-global-reputation-list

& q5 F0 P) B1 _, ^5 z2 w
( W; C( b- j! O3 Dpoll-class

- ]& m2 i+ T* S+ z
1 b9 Y" D  ?0 D, N; yget-color

  I6 ^7 [1 d; h. M- ?0 Y) i+ ^  u; e- g% @
]]+ y# ]( |5 Y8 t) F/ T
" ]5 S4 J% n" q
;;
如果所得的信任度满足条件,则进行交易" @0 E+ X  L3 b2 v# O

  T. m2 Z% L: p4 y[

" E0 T  _& i% h  E
4 D* w. g* Z* K6 s& z& x  jrt random 360

; ?" P- M# j0 G# O5 E- }. |- G/ K. w
fd 1

& w3 n7 E# u! n
- B8 z- _+ e0 a2 m$ P: m]

( y0 h; Y, ^- m! `' z) e* T
/ r/ R& [1 @  d& nend

5 w/ G, g* C* Q& M* c% G8 o- H
+ }6 J4 e! g( Y/ y, \% E, y; jto do-trust
( R5 \9 i& @4 b; s0 n; r5 S" j9 Bset trust-ok False9 \8 [) L: I9 L8 Z+ ]
7 {, f' z6 r) X

# u6 k7 P+ b" e* hlet max-trade-times 07 c/ \( P# `; j! H0 q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 Z6 e& C  D5 G! n
let max-trade-money 0; M& d# R4 T- Z3 q/ T5 g
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 u! k# Y6 d( Y9 P2 R$ R5 _0 M# 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))# }5 m' k  k* L1 P; N
1 G6 m1 n4 Y2 m( J" k

1 X3 }" G" X: y0 [, {) j5 Jget-global-proportion8 G; C( w8 H: i1 F6 G
let trust-value
0 \' R5 m( Z) U+ mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

( |1 u- v: A8 H: u1 x/ [. [( s# k# yif(trust-value > trade-trust-value)$ z. s+ q  P% e/ n# g
[set trust-ok true]+ ~# r, m7 `  ^5 X
end
+ O' ]. \; R& ]# s; e
9 I0 q' P/ v; W- |" `( o/ Q- Wto get-global-proportion% u$ }0 W* b( F# V1 L. b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 O0 k" `0 O8 f6 s6 Z$ P- t9 Q( z$ f[set global-proportion 0]
  A. U& a  |+ f5 b8 L$ k- b[let i 0
9 q2 z9 S* H( H! d9 J0 Zlet sum-money 0
0 g+ v7 l$ i1 U4 f  ywhile[ i < people]
! w9 J( e  k1 H+ `4 U$ T& t[, ?# N5 R% D% w( ?. v
if( length (item i* B. @* I' Y/ |% r% O; d
[trade-record-all] of customer) > 3 )
- u, x3 V# @$ A1 [- N
[+ E. ~) T! a2 ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). k. T/ N9 W7 Z
]8 c* @2 f/ x2 @% Q) \# [+ M9 w( e
]
: [' }+ |, x$ [% z& `( z+ p% Ilet j 06 Z, K9 M% _. }; U% b* i
let note 00 C$ n3 g# W% Q1 W( |) O
while[ j < people]+ t6 t+ T9 d( t0 p& I6 i/ @/ S0 V
[
/ n0 D: p" X4 w% zif( length (item i
( X, g4 p, y: b5 `* I[trade-record-all] of customer) > 3 )

0 |+ M8 P. f2 y7 l" l  ]- ^1 e[
2 U) I% |9 A! V8 }+ ~1 \: N, Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' n4 Y# `0 ]/ @( J1 Y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) U% U4 v6 t( \( Y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 Q8 C. |# t. T]- ?3 L& c) @% l: o
]
1 C& j. H  E# |6 Z1 s1 Uset global-proportion note
& ]$ i' N, S' y2 |. f  D6 ^& k]
! ]7 x# g6 ]1 l6 Y) ^/ `end! k6 E. a0 N2 [4 V0 `2 u# V  k

, q, H/ `3 F$ ?1 K6 Nto do-trade; k) E7 c' Q2 J# i7 B; ]) ~2 z
;;
这个过程实际上是给双方作出评价的过程
0 b! p; j* c; b" \; g( l3 x8 Dset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价7 ^1 a+ S2 X) D
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
* y; }3 u2 E$ X. k+ _6 I: `& {set trade-record-current lput(timer) trade-record-current
# |( D+ D( W: G7 e0 d' B8 y% G;;
评价时间9 Z4 E9 Z% `: B, |
ask myself [
; a! I1 p1 r/ y. v9 o0 g  `update-local-reputation# y7 v1 b) D- ?7 G$ O$ M& _
set trade-record-current lput([local-reputation] of myself) trade-record-current. Z. |2 e& ~% x5 ], Z
]! v/ W8 f; Z! Y( u: Q1 y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: o- L# d9 S$ _  O  |8 q# Z
;;
将此次交易的记录加入到trade-record-one0 V. B: `1 ]; a: r+ o3 O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* X% y# _% A3 L2 u
let note (item 2 trade-record-current )
! ?3 z& W; t9 l( a: Hset trade-record-current7 p' G6 `# s2 G% o' z/ u$ z! A; A9 F
(replace-item 2 trade-record-current (item 3 trade-record-current))

. g$ z/ W. B5 ?3 u4 aset trade-record-current/ @: k% P" I8 h& A. ?/ U
(replace-item 3 trade-record-current note)
/ ^$ g5 ~3 `# Z& M" ?$ E5 E
  s8 Y4 C6 t) k* |+ J& F# W

0 h# B1 b" H! T. I( [ask customer [
$ F  _& ~7 |+ D6 c  Zupdate-local-reputation
6 ]# C, Z3 {+ V; O; G. ^set trade-record-current* U0 V% P' _  M: o& }
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

5 Y- T' I8 d& E, q1 Y]
7 k! T. a; x- m) E4 s" {0 t0 R: c8 K& r  f# Z: T; p

. E9 O5 H# o! H1 H& ], l) S# Rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. x7 _2 `, c" }% p1 k
- m) `* s+ C; C# W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! [8 h- x# p/ H4 D6 ~+ i+ |
;;
将此次交易的记录加入到customertrade-record-all' W. R& ~7 W% y
end6 v: z0 X& ~% N" ]5 d( S
0 ?1 M( w2 _7 f' T- @
to update-local-reputation
9 P- N9 x$ A" [% i) aset [trade-record-one-len] of myself length [trade-record-one] of myself+ h8 u' V* r( |+ x; [0 W

+ S  Q$ t6 p7 v0 G& `$ [, o6 q7 _: f: t9 F
;;if [trade-record-one-len] of myself > 3
9 i8 I2 l% M( E( X
update-neighbor-total
1 C( }$ {( \' r( }+ A5 ^9 z1 D;;
更新邻居节点的数目,在此进行
4 `2 i8 y! n+ K. h! plet i 3
2 I" I! ?! Y$ m# h9 Slet sum-time 0. r! e. \6 y. |: J8 l0 D
while[i < [trade-record-one-len] of myself]2 q4 O' {# s( @0 r: d; i
[
/ I5 n2 k% |) l& L) Nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, D: b2 {2 P. H* O: X( j% Eset i
0 s/ i# A3 ^% l+ y( i + 1)

/ S' d5 b! L, b" h: P]. D8 M% l/ V% w+ \) L( V
let j 3
, E4 R0 `- ?) o! d: m3 clet sum-money 04 o$ i; n! C; w- Q9 p
while[j < [trade-record-one-len] of myself]
" s0 c9 X. Y+ D[
: v+ Z. `2 r; b% ~8 tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
- M/ G4 r2 R% x" s% L+ A7 Y, @set j  x2 X( A# o$ z5 k
( j + 1)
8 e  [& T1 e% J( \: v9 i- g
]! P( g" y: `3 F: w6 _$ ^1 ?
let k 30 D+ M& e7 g7 J7 _* _
let power 0
: o, r0 {3 \/ m) i( g9 qlet local 0# T+ V3 W; Z! G6 G8 y& {
while [k <[trade-record-one-len] of myself]
; M- b. b1 W+ x[+ k) N. s6 a: ~# ]) K  j
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)
5 g! _. w% b: ~# {, \set k (k + 1)
6 T; z. D3 v) T; B9 d" Y]" s4 ~& ^" g/ }& D. R
set [local-reputation] of myself (local)
  O) N! R8 f% Hend2 s( ?- C' n7 L6 X# d

) E0 ~0 H* a  ?7 `% @1 Ito update-neighbor-total' @" B4 @5 b7 P( e0 ~4 v" y2 k) G, U
6 M/ T$ r3 e+ |4 r7 ?3 O- i
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. K9 X. A' [1 I/ o, i- ^
. x& y+ E7 |" q* K: ?3 n. Z6 D

. t' e2 e3 U5 C$ Oend3 I+ s% }, n4 k. }
1 c1 A5 s5 y- }4 {; V8 _0 Z& a5 w% a
to update-credibility-ijl ' J5 A6 ~0 f. h5 ]' v( P8 e
; c3 `# s/ z) b7 o) I2 R
;;
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。$ w/ S1 ]% ^& }8 l0 n3 \1 b1 J$ Y: K
let l 0
6 b1 g3 R: N% G" _& j: a. e; d' rwhile[ l < people ]( n6 N5 K. X" A, H
;;
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
. P  \* i: q# x8 W2 Y5 x[2 Z. d7 L5 v2 l+ A
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& M' X' ?0 q8 w) {if (trade-record-one-j-l-len > 3)( K- L; C8 d* U0 @7 k+ ^. `, F
[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
! h. L: X, q+ U0 X+ ~/ blet i 31 u* m, g: {$ X. U4 Y' O& P, @8 A9 p. A
let sum-time 07 Q. a; J8 ~* W+ v4 s+ p& _) L4 m, h
while[i < trade-record-one-len]
2 {; i9 N, U6 P6 X1 W- s& ~[
( a9 C3 W7 L) O9 @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ A2 s+ c) [  }
set i
, T) Z+ \4 X" U2 E& U, }( i + 1)

% q4 |/ w' k5 I- g]
  @. K0 I0 F) u& ?9 l1 clet credibility-i-j-l 03 X! L% z7 A, Z+ u. j. t
;;i
评价(jjl的评价)
7 G& ~( k0 X% Vlet j 3  c/ g+ o/ r& g6 f3 X8 X
let k 40 e& g+ B4 \! N% x# @' y
while[j < trade-record-one-len]& o# w! n3 I9 b/ T4 y; j! c3 J
[
% @, U3 [1 R$ f3 {* q" r& E. _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
1 n2 H* X' T2 ~, |8 V4 U- {% Qset 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)( E& ]6 l! J$ a6 M( h$ e2 N! b
set j
; z* G. O  s+ j7 O( j + 1)
1 ?3 r) j" Z" p8 ?& y8 b
]
: E! W1 S  k1 F' A& o' ?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 ))( v6 F3 R9 Z6 O* F5 Z
" k$ {% e4 k* V' f/ `

& E: T: s. O' K/ g8 J% T& V; k; @let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); u: Y% U& v0 k' Z
;;
及时更新il的评价质量的评价; p' e: c9 Z. Y2 }+ Y' x0 ^
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, c0 d! }; T6 N" g  `+ x# Hset l (l + 1)
+ y' O$ B2 \" i$ i]
: Z/ t# m0 g8 ~) U) |end
, {' C' k( T9 t5 x2 T; U4 D2 t- R+ X, N, e( T- u/ p
to update-credibility-list
6 Q" o. t9 R. f% Clet i 03 ^/ W+ [! Z( R& F+ M9 g
while[i < people]
; e0 Q/ b* x5 B& d/ h[" s  ]) y4 S8 @7 L$ o
let j 0
* R; K; O. l0 f" M3 V3 \let note 0" d6 n$ P2 [( _  {" h' y
let k 0$ M' H/ N. z3 s; T: C
;;
计作出过评价的邻居节点的数目6 [  [$ n( u" t6 U0 z
while[j < people]
  R! v$ w# _" a' K[
: w; X% i& Q/ K0 ~if (item j( [credibility] of turtle (i + 1)) != -1)
# J4 n7 G3 M, S' l* m7 @' X- E' N;;
判断是否给本turtle的评价质量做出过评价的节点
6 D0 }+ P( n1 |( k* u6 N[set note (note + item j ([credibility]of turtle (i + 1)))+ z, E$ l; q4 s& b* m! N
;;*(exp (-(people - 2)))/(people - 2))]
. ^" h) [$ f) p/ Y
set k (k + 1)
6 x& X4 a3 G* Q) A, B4 v1 \]$ {; J7 N! T+ {& C+ l
set j (j + 1)# v  q" Q# Q: g8 z9 V
]  p' y7 k2 ?  m  R
set note (note *(exp (- (1 / k)))/ k)4 D3 b2 v2 U$ V" o
set credibility-list (replace-item i credibility-list note)
5 E7 d2 k+ N/ U5 }set i (i + 1)
6 ~0 e4 h2 q7 r7 K) V% m1 a' s]
% r( O+ S8 H9 xend
0 h2 k) c% M- \& t* M7 A0 Z6 d! U# p8 N
to update-global-reputation-list
( f. i7 o4 k# `2 [let j 0
2 y* ], N% f' P* ~7 K. bwhile[j < people]
7 j: C6 V% l+ @0 y9 `. a  q[
8 H5 D, p% \' ?8 P% \- \( K$ ilet new 0
; Q: N# j! ~* h' E- `;;
暂存新的一个全局声誉" d+ Q1 T) e& }2 o( ]. ]( E
let i 0
7 {1 s  N$ K/ Z8 x& \# A, llet sum-money 0/ \. Z  ?7 G, o1 W- c5 O( M; l
let credibility-money 0
) h  k, |! ]7 }/ _while [i < people]
5 ?& @+ _% \$ H) Y* @! b. |" x; E2 o5 c[) I  \8 X& g% R
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 [8 M1 [: L) ?set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 _7 p* e) H" W, H' jset i (i + 1)
# u7 C8 [/ M2 S  x; e- W$ \8 W]
; R! h0 G) x; o! Z! s. M: jlet k 0
# K# y$ x. M. W3 [8 Mlet new1 0
0 H% p0 K  e% Z# F% {) V% G( N8 kwhile [k < people]
7 u% Q; P( e1 K: }( v[5 j+ q+ d' Y- r# q" y
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)
0 p( k, K6 z/ S' R2 i0 Z9 x: s, Aset k (k + 1)
0 R. h1 f* _& y9 w. A  e]0 j5 i7 s0 @: i' D9 b# g
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # L: a9 `3 R0 m$ Z; X: m/ u% k
set global-reputation-list (replace-item j global-reputation-list new)( s  n" }3 N3 X$ u8 a  W; @0 x/ \
set j (j + 1)3 n! L1 [; Q9 z7 I% `$ y, T
]
6 K+ ~6 M* N0 S7 Pend0 p6 y3 z' D) t) ^
7 ~4 V5 ]+ W; U! J0 J, P5 O" c3 I0 N

' n; _4 @9 w' ^3 z
+ d- {. S8 ]6 O# A' p1 }! K# M0 Dto get-color
% j2 |, m. o: z* k" D
( |' z! r+ C& s/ N# }set color blue
5 {: G( X$ y0 O. J. G4 K( r
end
  q2 l, C4 ?; L# L" M; y5 h, O" v/ r* @1 ]6 E
to poll-class( y1 O' v$ H2 U9 e3 J9 y6 `5 C8 L
end
  B: u7 p! c$ n" v1 w
7 @) ?# d2 ]( x# ?. }; ]  M/ a; w' @0 n3 Uto setup-plot1) D) S# b* p  p+ b6 X
+ v) z) ~2 w$ e& o! U
set-current-plot "Trends-of-Local-reputation"

; y) ~- L" U! Y0 C/ ^+ }
  m9 y: U2 y, P  M7 I! bset-plot-x-range 0 xmax
' i( o0 O  F1 S1 V4 x. ]! Z! h
" Y: G1 H4 t7 Q: ]
set-plot-y-range 0.0 ymax
+ d+ Y: q% S( _
end3 Y6 Y" e. S( T# p/ P

7 w+ \: T& O( q0 T$ Kto setup-plot2
  v5 ^3 q' |! C& \! w( X+ f8 j( \0 f& o
set-current-plot "Trends-of-global-reputation"
0 ~6 y3 [+ P8 F% u* \( t( Z; X+ ]

8 d! T8 z5 y# ~/ G4 X+ z  Yset-plot-x-range 0 xmax
3 `0 E. `8 l1 J6 {" A
8 Y6 ]# j7 O% H# p
set-plot-y-range 0.0 ymax

7 g5 X9 t% [, K3 s! x- X  _7 vend
8 k0 U- m6 L* v# ?
. [, V. h4 s0 M- }' u( r* d% |to setup-plot3; ^) J0 A7 V% W
7 z# r  y0 J5 B8 {
set-current-plot "Trends-of-credibility"

, p4 w" s; W- U/ ?8 a( j5 k9 E! \( C
: d) ]' S0 |. L- a- j( t) Dset-plot-x-range 0 xmax

  N" K! d( v' G) ~% c& f
) ]9 w5 ?, O* Q+ g' c1 lset-plot-y-range 0.0 ymax

% s1 w* w8 a) Oend
7 Y) O3 [- K( B0 N4 c5 G5 S4 C2 @* T
to do-plots
5 @' ]* C6 @3 j9 M- @set-current-plot "Trends-of-Local-reputation"
& Q2 N3 ?7 }6 a& {+ Rset-current-plot-pen "Honest service"
7 O( D& R) [/ [( g: ~# [# `end- O- H5 A8 F7 _, F2 K1 ?
$ ~% K) \! M- F$ W$ g0 P3 F
[ 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.
  |1 i; c2 {4 d/ a+ p  m3 q$ I3 Q' U" E) |: I
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, 2026-3-15 02:16 , Processed in 0.027085 second(s), 18 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表