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: 10450|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:
  W- x! O' J, z1 X5 b8 Vto do-business / s: m+ `9 Z% R' g* L: ~( ]
rt random 360
- X$ F3 }4 M$ w fd 1, I0 d$ T0 j- ~5 a6 \9 J* {
ifelse(other turtles-here != nobody)[* O! }3 ~, D- U( _/ g+ C. o+ i
   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.+ J. e3 H8 `" r6 o: \+ Y1 u" y
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    % a+ d& {* T" A3 }
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
( \) ^- T5 [, S/ n3 x   set [trade-record-one-len] of self length [trade-record-one] of self6 `9 E2 R8 W  t% b
   set trade-record-current( list (timer) (random money-upper-limit))9 D1 Z1 Y2 l. e8 g0 |* h6 l
2 v7 i+ K1 J  I
问题的提示如下:$ e# j  w: w) o. @8 |& _+ H
+ A3 @! E" T: h0 N( [
error while turtle 50 running OF in procedure DO-BUSINESS
! `2 q! h6 T- b. G( ]  called by procedure GO- o* M& t' T! F, ?9 Q. s, Y. n" Z) ]
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
( B% q! [4 X: q+ D& \' p% j
(halted running of go)) C& S  W' Z( j6 y

* @; v+ V% f% o. G0 b. ?, Q- G% ]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~~
( n8 D& C4 ^+ 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9 j4 W. x- N9 k1 ]
globals[
/ l* p8 j1 N& M; zxmax
- B) B7 b' Y5 u+ n% o; h2 K5 \0 ~% Zymax) @9 W# h5 s% P1 Y) `1 }' n
global-reputation-list
5 |0 ?) c) e$ E5 a4 \' l" {) E: K/ o4 D( U. n$ Q# j
;;
每一个turtle的全局声誉都存在此LIST) ]3 u+ v* `/ K
credibility-list
( |# Z5 a" q; K0 }5 y1 t# H* A" x+ F$ y;;
每一个turtle的评价可信度
* I6 E% _6 H* K9 e3 Bhonest-service
1 r" L$ I0 Z% u" U* l0 munhonest-service; m& F7 F7 m% l; r4 w$ h. X6 R
oscillation$ ~# @4 S  b. j$ Q7 e0 o7 u
rand-dynamic4 A" p+ C% a0 s1 ?
]
0 z7 m; `1 W" p/ f
: k+ M& W9 i# u; w1 Y% |  n7 Nturtles-own[
3 @! g- R/ w5 ?7 ]trade-record-all' f, |6 i* b4 M8 g  X
;;a list of lists,
trade-record-one组成" Q, b; f5 N4 N2 d, H# Q2 B
trade-record-one
1 M9 X& ~, b; |* m8 ^;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
) e- f% j) `; g5 j8 B; \8 h- F& j+ J; o
;;[
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]]
: h& Z5 w+ S# \8 W+ Btrade-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 `& \- L( d  e) q- ?, b
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list2 g- o* B& `  c/ n! ?
neighbor-total
, B! q) H% H; p$ N. b;;
记录该turtle的邻居节点的数目
0 `( g. o5 B: d4 i2 L$ U0 t7 ]trade-time$ D0 |' f+ b$ J! m
;;
当前发生交易的turtle的交易时间: s* w- l% f$ K5 F, D4 a+ w1 w2 ^
appraise-give! ^! X; I0 c, _) d" V2 M- H
;;
当前发生交易时给出的评价" _" U7 N6 |: B1 f  Q) V8 j3 @
appraise-receive+ X  F( ^& e) ?* A# L" h
;;
当前发生交易时收到的评价
9 V  t2 E5 k0 I' ?  {3 _8 uappraise-time) F3 B% n% i( q+ E3 g3 |. n
;;
当前发生交易时的评价时间
  ~% c; M  Y3 [! q5 [" Ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ t7 p0 j  W( `( a+ jtrade-times-total
# ]: G* \8 R3 N0 T' D;;
与当前turtle的交易总次数& w5 i: N; e1 B1 H" F, ~! V
trade-money-total
7 a: X5 [# Z) N- Z- [# k;;
与当前turtle的交易总金额7 f0 z; E7 ^/ p% x
local-reputation& z& L& B" A& w, I1 z0 u
global-reputation* E: Y0 K/ k( J+ p3 u
credibility
5 p( @, \+ x+ N# W;;
评价可信度,每次交易后都需要更新
: x- w, i1 J4 Icredibility-all
% u* L) k7 `" J, C( O( a;;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8 x/ m, _. C# R( F
6 B$ f: j5 ^8 R6 i* D- 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# d; H9 P0 }4 C9 W. Q7 @& R: V
credibility-one
- z/ I3 x& M$ _;;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- s6 u  N. t0 j  h
global-proportion
4 S) a0 M6 ]6 q) C3 ~8 Vcustomer3 L# }' P( v5 n$ Z: z
customer-no9 H- }- K; n  i
trust-ok7 G! s" U: k9 @
trade-record-one-len;;trade-record-one的长度9 X9 T( X% Q: R  o
]
0 y8 }# z3 \4 `+ W! Z" c/ S
/ w: W: L& e( C; R' c;;setup procedure/ J3 g8 T1 s) l( ?# r, q0 v
4 g( t1 g4 Y1 B
to setup2 D9 I2 @6 W1 w2 l, O0 d( |% Y

$ }- h) x# c: _- t5 K- {; s" ~ca
- I, `) B- h9 J& B. t' [

; C9 L8 H) S. _6 P0 S. Finitialize-settings

0 A0 t- G1 c, y2 g) P( s3 ]& y/ V
crt people [setup-turtles]

7 Y/ D) o8 y2 U- ]  B% \
/ w4 O. T( K0 R$ h8 oreset-timer

- R) W- u9 H+ n- v% a1 q1 z' t+ i4 h. e6 |% S0 D; v
poll-class

% x6 I9 M% h, H6 t: e1 T9 {: |3 F5 T0 p2 L( z9 w- a
setup-plots

" P4 B7 s8 d$ O1 i- U7 _: X6 v2 I, d4 [$ p
do-plots

# A$ Z4 \3 j  t  z3 H' d' xend$ M6 r, j; e& V$ E' T
5 C- ?# x! y3 h- O1 m% Q
to initialize-settings2 H; |+ x8 }1 M$ C/ d; I, s

+ c; f1 T0 j6 |& jset global-reputation-list []
* F2 k3 E$ w* H3 E; c
) f- o. N: p: ~: V
set credibility-list n-values people [0.5]

! M; X( ?; y+ D8 n
- \" Q( B0 |# u6 M. ~set honest-service 0

' {' O% y* J. F5 N9 K% z. S3 w2 ]1 C3 v9 I- B" B/ G
set unhonest-service 0
, B3 p, _& e6 b3 R

1 S9 S% O4 K1 g' R9 Yset oscillation 0

- A% b4 t: Z( @' ^. J: P; y3 U" O3 L3 Z" I) h' Y4 P# p. _
set rand-dynamic 0

5 W8 W, V. S* {' a* Send
4 g: X7 x  c8 B! o" z. G) X  n( j$ S0 L3 {
to setup-turtles
1 `4 a' v9 M9 T( ?set shape "person"
; n7 k0 }) w8 `# k. ?setxy random-xcor random-ycor! v) t' D, \3 y! h7 n
set trade-record-one []  `. R# [: v! d- e$ ~: C
& O! ]* \( t0 D! {$ s
set trade-record-all n-values people [(list (? + 1) 0 0)]
! \; I+ n2 Z2 d  z3 x
2 j# G9 X6 W  F$ h2 l1 a
set trade-record-current []
/ N- `/ j( K% [: Y2 [" i7 x5 Lset credibility-receive []: y- C6 u  \0 `( x$ U. a
set local-reputation 0.5
- w7 w. L0 }0 E. vset neighbor-total 0- ]: H; k( V8 ]' F0 j2 Y
set trade-times-total 07 W1 L$ E0 Z  T8 S
set trade-money-total 0
; S0 }5 w/ k6 L$ W7 t0 \set customer nobody
/ w) n$ W- y) x; F/ b/ V. }set credibility-all n-values people [creat-credibility]
6 y4 `$ }8 x% i$ p- q: zset credibility n-values people [-1]3 {, y1 o, d; E) o* H% ]8 F$ v. Q* V
get-color
! V3 L) O/ u* z* ~

8 s1 \5 X& H3 X6 M$ |/ J/ mend
% o$ T% y7 f. b9 D1 N! y& \
' g/ F8 s) z5 z. Yto-report creat-credibility
4 f! ?7 _; v, p( z3 yreport n-values people [0.5]6 W- a3 x9 X6 ]; [+ q5 o
end  M$ h- l* A( Z& _
7 d4 m9 V- X/ K* x; }0 g
to setup-plots! o/ N5 K% K, p8 k$ J6 N

+ j; Q* @' W, m1 N3 V, pset xmax 30

0 g& `! i$ t; ^: G$ B3 C7 v. ~9 G, X. d1 Y4 r' f1 X
set ymax 1.0
# `. K) v) f+ ~! T
: u# [# b- r. c: d
clear-all-plots

( \2 R4 ?8 X; h! S3 ]
8 r, U4 W* C' A5 ?( l7 A1 wsetup-plot1
4 D2 L! J% u& t
. h8 K& i/ e0 }+ s. v! G8 Y- g
setup-plot2

$ ?$ w# t9 O: Q. C' ]* v: e) T
4 u0 O& [3 j' V4 ^) A6 lsetup-plot3
2 p7 @* L, B- J; F# C
end
/ s1 B4 x9 N/ o6 Z# q! D+ x6 q: V. X! C# ^0 }5 V
;;run time procedures$ x2 U5 _7 j4 z5 w" K  i

& N) h2 N# V. }$ w6 Q  X  c: Eto go
6 j0 _" h5 V8 R' J
6 [" ]! }! Q6 V. A& kask turtles [do-business]

8 E% z( y1 K0 x- x1 tend
/ X* X6 W( H: t8 ?6 z. X9 ]
1 Y) Q5 n! u* L5 A, Q. H5 ?4 y4 Sto do-business 9 y: S& w3 M7 B5 K8 j

+ T2 A- D0 G$ o; r
. N2 y9 p+ \% Qrt random 360

( `; A8 D- L' ]8 A# s
( r  l8 q* s  o2 {fd 1
2 v2 C8 V5 Z# j. B

) k# J9 }2 J/ f+ m: U% Q) hifelse(other turtles-here != nobody)[
2 K1 k3 K3 `, h& f% Q6 U& ^
/ x# g4 x2 E; x% h& i; m1 S
set customer one-of other turtles-here

/ u: _7 \5 O; Q1 _# ^+ E* M0 Z1 e; Z  `5 ], y2 P" w
;; set [customer] of customer myself
# P3 u8 @7 N7 d; I  X: w

8 s8 |. A5 ^- U# Eset [trade-record-one] of self item (([who] of customer) - 1)
3 U* O, `! r. X8 j  Z5 T8 k; c[trade-record-all]of self
# i, I& L+ P( Z- d3 w;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' A( L$ F: F* C) }# U

9 W6 Y% h5 l: q" Uset [trade-record-one] of customer item (([who] of self) - 1)8 t8 B/ i: E- q2 m3 W
[trade-record-all]of customer

. F3 A, W" {9 P8 Z% w( Y2 L* u: h* x4 r8 U( {! l' x5 I1 h
set [trade-record-one-len] of self length [trade-record-one] of self
" o) v$ R6 l" r) V
& ~9 v' R/ W2 B% m
set trade-record-current( list (timer) (random money-upper-limit))

6 _8 h# V7 k7 P4 G. B2 d' t6 M, A. I
ask self [do-trust]
: y# d4 D4 R, D3 o3 F. t( i: Z+ A;;
先求ij的信任度
' W& p  p4 d# M9 o# N: |7 D0 [0 k" i+ Z- R
if ([trust-ok] of self)
# n. y  Y/ e6 d; L% f% e;;
根据ij的信任度来决定是否与j进行交易[8 G. k8 x( X; u8 a& r, p- y
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself- v3 {, Z# I% F& e: C# s- z( o
2 o( e  x4 x% x* J' ?$ r: r. y% L2 G) f
[

# h/ R) l, Q4 p6 `% e' f
# ]% G! e3 @& |1 w' m1 Fdo-trade

$ Q9 G, }7 L' K4 V
7 e+ f1 @9 m2 K2 k: D2 ^  uupdate-credibility-ijl
" R; ^/ R+ L2 `2 O! V' o! q
# @5 w; j  V+ J1 q$ Q
update-credibility-list+ O  L+ h/ d; K; N9 _
! C: e+ g1 |' r. v
+ B$ f! y1 D4 N7 p
update-global-reputation-list

: M% W2 [% B# K$ P1 ~
, r0 {8 X6 M9 }/ C1 a7 [poll-class
4 k% u  @: u% ~  x: w3 k
& F2 n: i: ^, ]
get-color
! [: ?! `/ M1 K9 l, U( p4 X
! z8 r9 U. q4 V* w+ y$ s# V
]]
, }8 J# m& t& w% ~+ g
5 I  ~, H. h9 I;;
如果所得的信任度满足条件,则进行交易7 P# t! v: I* s9 D4 h/ w' L
* u8 p" ]# w: P+ z+ p
[
) C% W/ T" I0 B( j3 B  ~, _
4 t) l3 \. c4 ^2 K1 W
rt random 360
( H: k) R( T6 j4 k, E

# n8 v- s) P$ R5 N4 Nfd 1
) A  N: i0 K" d$ g

/ g# ~7 Q2 p. M+ ?. U1 j9 Z1 z]

( b9 L) a7 i2 W
3 h/ i3 R8 g7 s. n( A$ U- jend
  _$ H( t* G1 t! ^( r6 b

! f0 u6 y1 S" S+ D; w4 b! H6 ?) [to do-trust
# c% a' r7 q) f! }" Sset trust-ok False3 t7 h9 a. f& w; S1 y5 ]
8 Z1 i9 b# ]7 r; l& k

% b; R/ v3 b6 r. L6 P  x6 ulet max-trade-times 0& I% O4 d9 d; v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; L8 m2 v9 [) I  Alet max-trade-money 0& g1 i* i  C' i5 ~( W+ U6 J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! ]7 H( H! E: r8 p' o7 Z  I+ R' Glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 s9 n5 n$ B  t8 M, i9 ]
. I) G4 W: k) t+ V4 F, K

; f- u. p3 _- f2 Sget-global-proportion
7 I) Q9 G+ t. |let trust-value, R5 M. E5 y0 c1 N3 Z+ q
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)
* m( Y5 }1 W- i) G( _# C2 A
if(trust-value > trade-trust-value)
" T; A8 `3 n, E) g2 i9 ~[set trust-ok true]
5 Q% R  \! d8 k# P; I/ W1 `4 Rend* O3 b3 {( M5 f) W8 c4 E( p
3 F- U& N  ~8 x" ?
to get-global-proportion% i8 D8 U  x) D$ k
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- R7 T9 L& R( p" O7 l
[set global-proportion 0]
+ ~6 T9 ?6 r- j" d  n: W6 j4 e, ^[let i 0
2 Q! _2 u1 j! Y7 o# x: \3 ?let sum-money 0# D* G1 F) Q" @. m
while[ i < people]
& s: S- z8 J7 H8 {2 N[
$ G) L" Y5 l8 i1 E* m) M7 Uif( length (item i2 F7 V) t) D( \7 w% w0 }6 m
[trade-record-all] of customer) > 3 )

" M# H, @: u2 [( b# f" P; @[  \" w6 v# [- w
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 `; s6 I5 {8 \  ]1 u' j]  q; q* e- C# @
]
7 T8 b4 y& n* O( x5 h* glet j 0
  K) \: A: k" ^  Q; qlet note 08 b0 a6 n6 D- Y
while[ j < people]
7 @9 }5 N8 C: H  J[
; z+ E2 e; T! d/ T% W7 l5 yif( length (item i4 B- F* A+ Q* f5 W
[trade-record-all] of customer) > 3 )

& m0 X, H7 ^& ]. [4 h/ Z" e3 N# i/ K[3 L( R+ G+ V6 q" I0 O
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 w: r1 Q- U! {+ ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* {3 w9 M$ Y6 p$ r( L4 q3 [0 j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 |( r# {' W3 ?  |
]. b5 \4 G& p4 b8 G  B# q8 t
]
  u1 e/ m: h8 x2 lset global-proportion note
: K! G* ~/ P8 _]4 [+ ~2 ^! I: u* Q; Q, e, L( r& N
end
1 s5 B, a- _% J/ l: F. ]: }3 r% A0 V9 p7 E4 t: ~2 z9 n
to do-trade9 s6 [) k7 k" ?* {
;;
这个过程实际上是给双方作出评价的过程
$ f: g+ P3 j, k1 n$ j% ]set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价; F% B. ]& X" [  S
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价* e) `- }) a0 {1 \6 M
set trade-record-current lput(timer) trade-record-current
$ {) z& z' D; s, V;;
评价时间
6 M- k: P+ d( Q$ H4 Y% pask myself [
! G  J: X1 T* K! Uupdate-local-reputation' _# E2 _) Z# m0 E( u
set trade-record-current lput([local-reputation] of myself) trade-record-current
* u7 S1 B- E0 T# U1 z]. ]6 n3 ~  u( l
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 p; |% s* E; D: V) _6 h% A0 i7 k: i
;;
将此次交易的记录加入到trade-record-one
$ _( Y. ^8 \  ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 N) h% V+ P9 \: r0 u: O
let note (item 2 trade-record-current )
; r5 E4 ]4 f' g" v4 o8 b$ Zset trade-record-current
* p1 W+ t/ M9 i" n1 G% b% l(replace-item 2 trade-record-current (item 3 trade-record-current))

0 L* C7 ]; ]# N# E' \set trade-record-current
9 ^+ X4 w3 B! t(replace-item 3 trade-record-current note)# z, \7 }$ d2 l  S1 W# f$ }

4 W; Q3 Y& w' ^6 W$ ]8 i
, X, y; t0 ^# ?& E
ask customer [" G: [8 @3 c8 Y- f8 t( |
update-local-reputation
6 E3 ?$ O- M8 ?" F/ p( M" gset trade-record-current; i' g: r! s3 h3 k$ ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

$ E2 ^- `, ?3 Y; p5 G. I9 `]
& l( p* T# d, W0 A
& T0 C9 b3 y% r8 V! n

  r$ ~9 |; [3 sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% G5 T4 b4 L' H1 b  e

, I; H0 S3 O0 r- L+ R# d( uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 T: L, P/ M! ]' K* N+ |1 c% f* z;;
将此次交易的记录加入到customertrade-record-all) i) Y8 k8 }2 G; ~) Q+ q
end; `$ h& q) |* u9 v; w+ m: d

! Z! }4 D' [- V1 {! l% x4 jto update-local-reputation- T- R% |% _7 @5 Y0 m& W
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ U. @8 E0 N/ V  ~6 G7 \
5 G, q- ~+ T4 V5 s: }
  Q* [, `3 [3 p% e" X;;if [trade-record-one-len] of myself > 3
- Z0 x5 p5 ^' ~7 ^: J, s8 {3 y
update-neighbor-total
6 Z8 C/ c9 m4 {" B1 l;;
更新邻居节点的数目,在此进行
4 d$ a5 M# o6 Zlet i 3
2 n2 w3 |$ m' C; E" Olet sum-time 0* ~# m* q6 N1 d' ^3 c+ s
while[i < [trade-record-one-len] of myself]
" l7 N5 C/ o/ Q# _* X  X4 T[
9 r# a3 ?7 l1 p5 V9 d5 b& Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ A5 J, W) ]1 c1 `set i5 u. H$ Y: h8 ^
( i + 1)

6 M% [' X* m$ I2 \6 n  P0 w; F]
1 E6 x$ l& g2 {1 ^8 ^$ Q+ X' o9 |let j 34 l" }# C' z5 f% \- q+ h
let sum-money 0
! V4 H1 T9 T0 \+ Iwhile[j < [trade-record-one-len] of myself]( M- B1 p0 V6 |& O8 b- f
[1 v$ k0 S& S9 E- G
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)8 l  ]* T8 W6 i
set j
# ]5 W' I: G, V+ _  @8 d( j + 1)

! J" N( {/ D( {- T: Q]
& J- S9 {! f1 G( Olet k 3' f" W/ K& j' U1 f$ }
let power 0- m1 d- J6 e( l  a( ^
let local 0
5 Q8 c' L# B, ?/ C& vwhile [k <[trade-record-one-len] of myself]0 x' ~: j1 u0 q9 o
[
" S# ~- \6 N5 O7 `& xset 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)
' o( b. x( Z  u5 _0 `8 Vset k (k + 1): X4 f8 u+ |, y! R9 \' Q$ T! J
]
8 d- r  R8 t# _! aset [local-reputation] of myself (local)
  {0 U- i' @; M8 m6 N. \end
- P' j2 }  r& H  y6 I+ ^
7 I+ Z1 b; J! f& a  ?to update-neighbor-total
8 W+ O# Z- v/ ^; L' n7 K5 ~3 `
8 s$ @3 z' t: J9 O7 q. M0 ~if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% o5 w$ I& N* M/ V

' J7 R' }3 L/ d1 |9 s2 \7 a$ S4 E
2 e4 I; q6 q; ~+ I5 ]9 k  v
end
' i1 N  ?" M* F, s
( u0 K6 ~4 T! ?" z0 n# v, Dto update-credibility-ijl
+ i2 f  _2 j$ ]) G- {
# A6 ~: Y; U4 S! U7 w;;
思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。/ Y" G) y* X7 u* S+ K1 o: J  z
let l 0
. V) K; s( ?3 N, T/ ]' j; Cwhile[ l < people ]
3 r2 h' x0 d$ G" [* {5 R. ?/ s. y;;
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# s  o# _: I& R& p2 ~2 q  J$ `8 p: @+ f
[
8 p: F& C- f- @2 u4 J2 Vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 ?6 Q5 S3 s  D8 r8 I5 x/ d
if (trade-record-one-j-l-len > 3)
+ E; T9 A4 ^5 ?: ]: b9 @* Y1 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
" z' w0 z: d! l8 E% N8 D; plet i 33 }. S! A2 @2 D( t2 }/ v) X
let sum-time 0( k6 p0 k$ b4 t- W7 V* Q
while[i < trade-record-one-len]
1 J; F9 _% k+ w2 u) r[
! }. K" X7 o5 l& G% q6 M# `# o7 ]+ dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- |3 u" I* g5 W/ T. N) c
set i2 g' k  j* q7 o  A
( i + 1)
; b3 G+ Y, J6 r1 r# M
]& w8 M! }( j9 M. Y0 T4 s! `: ^2 V; l
let credibility-i-j-l 0
6 ?+ Q$ Y. @& C) M;;i
评价(jjl的评价)1 U7 q4 X4 c# F7 }$ o) Q/ j
let j 3
5 _$ G- O- N  n% W3 ulet k 45 @: Y8 c/ p; [# B
while[j < trade-record-one-len]; M$ m/ d' @" s( v1 i
[
0 Z5 `0 ^/ y" X2 ]* ^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, n5 [- r4 M. r6 \
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)
. M  a6 y, U) wset j6 E) H0 x9 ]1 B% j8 M: ?
( j + 1)
: Y  w5 b9 O0 E+ i
]1 c8 \- P* Q+ B
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 ))$ {% i/ `& e# Z8 ?% [. q8 i3 J0 w
) Z) `& K( P7 j$ Z* ^( d8 x, J) h% O
( P1 D& b3 I4 W3 M
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 ?' q! s: z/ K; S;;
及时更新il的评价质量的评价
8 \8 d& C- N! U; xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% r2 s# S; i1 U8 O$ o- gset l (l + 1)! G1 n- P4 C! X* f5 E* }  r% N8 k
]
1 X9 V/ B- R" N% d% g" \end
/ C7 K* H7 W  U  _  U( F9 p" \/ Z8 s8 p+ Y" A
to update-credibility-list$ ~+ Z* \1 V0 A! @% ~. z/ S
let i 0
; L$ l! G# |7 R7 F1 Uwhile[i < people]0 x8 N" B8 a& N) t% p) o/ J
[! S) B0 ?; W  r% z$ v
let j 0
9 E, p$ o0 C8 g+ blet note 05 l( V2 D3 c8 n6 [
let k 08 b% e/ [' l1 L/ d* ^3 k( x
;;
计作出过评价的邻居节点的数目- T1 ^" f! p7 ]$ {$ }4 D
while[j < people]
% K8 N0 u4 _# H/ I$ ][
% {0 ~& R+ }# N' F( \& nif (item j( [credibility] of turtle (i + 1)) != -1)
2 h+ b3 M( x" b1 k8 x; {$ n;;
判断是否给本turtle的评价质量做出过评价的节点4 ^( h3 i0 _7 Q( G$ P
[set note (note + item j ([credibility]of turtle (i + 1)))
3 {' k8 q* r. n3 u;;*(exp (-(people - 2)))/(people - 2))]
2 _& p( u. e3 A6 i1 @% z, Z
set k (k + 1)
! p" g4 N# b/ e$ K0 j* w9 H; L]  f( h& [! h/ w; x0 n% Q8 U
set j (j + 1)0 s1 N5 N$ w' X+ r: V
]
* S/ e# ~6 D. l+ Iset note (note *(exp (- (1 / k)))/ k)
+ }4 Z$ v1 D5 x0 O$ Dset credibility-list (replace-item i credibility-list note)4 X* a3 S# D/ H, T& w$ o4 l
set i (i + 1)- |7 a3 D6 t" \# \3 A# s" j: O
]( g3 N7 G7 K7 T* j% D' @. u0 ^
end
5 r  N" n  G4 B9 Z/ j& [8 u) V2 h& F8 `" O0 ~3 U
to update-global-reputation-list% P7 k4 U# H; s- }) z# @
let j 0
9 q6 `, W3 \: I4 w  u. B. q, b6 Q* Gwhile[j < people]+ N, H2 E/ E, H
[
! ]0 x$ P9 e- g/ i* p5 h# Jlet new 0
4 @) ^: Z( A/ g+ l. l;;
暂存新的一个全局声誉
' d4 P! D6 J+ ~0 _7 S. Glet i 0" N% V' t* A5 r
let sum-money 0
% R: {. \& j% qlet credibility-money 0
5 |; T* X7 P7 A9 f7 Ywhile [i < people]; ~; s2 R! c2 H' q
[" ~' j# D- |+ m, f% s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! a( d4 z- Z- [* Y% Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( x; V) i' ^0 `6 Z& C8 Qset i (i + 1)
3 ^5 n' F. d1 z/ x0 B: S]* R+ e) A7 {; \& g+ r
let k 01 z. r5 Y0 W- S  T: ?' j
let new1 0
* H& N' b" [! Mwhile [k < people]
* @9 F/ M/ Z" O' a* `- _8 e8 H/ v[. b- R2 A3 J$ B  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)
4 k) S$ q( D+ X' x2 q5 O, iset k (k + 1)
+ a; ^+ f# p8 U]/ u" k8 h8 t- G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: y; _/ Y8 u5 }7 [! Z! ^set global-reputation-list (replace-item j global-reputation-list new)' L& j4 F% o+ u8 v% @# }5 a# H2 U+ i6 y
set j (j + 1)
, @, I! E. L4 l8 s. P! n]: j. G* A/ K7 n# o: Y! F' F6 B
end9 e3 }& T2 W' ~/ K7 I1 R1 R

9 a/ K1 c- [. S) Y! O$ V& ^/ Y
, C$ @* P% S# p; M+ m0 e1 n4 Z! M( N# {2 ]. t+ A
to get-color, n# h- n, @5 X" p9 N: u/ j! u) j% V
& M0 u' o2 |/ K" Y- l5 S
set color blue
3 m' d# _% \/ W5 S. y) O5 q0 i
end$ b* p1 \* W6 h) W8 G
+ m/ d3 @5 U  _9 ~$ c
to poll-class4 m/ ^. }  [+ P7 K. s4 k7 u
end
& G- v7 }2 E/ z1 N# ]6 r: _8 Z) B
- k% Q  P* A0 h  |3 `$ B5 N! D6 Cto setup-plot1% y5 G+ b1 U' f1 A0 {

' d2 N* `/ ^' k: t: a$ `  L# nset-current-plot "Trends-of-Local-reputation"

7 m! A  Q3 k6 `5 q
$ s; T1 y. v; P5 Bset-plot-x-range 0 xmax

% @& W4 k( f! X( h& Z" B; b+ @1 v1 X- h, J% |
set-plot-y-range 0.0 ymax
$ m; W  }' S4 ?9 w
end
) d) a5 u/ j9 q, l5 ^1 M
2 W! t& s+ W( Tto setup-plot2
2 h$ ]6 }, q. H& c: L. f! O! r+ i8 @& Z; w
set-current-plot "Trends-of-global-reputation"
* R* x  R) z1 ~
- C! T( n: A, a1 N
set-plot-x-range 0 xmax
% J' B8 o# B' t- w& s8 }/ v6 G
6 r  z8 Q5 X& k' P; L# h
set-plot-y-range 0.0 ymax

! U  r3 P3 h  W/ Lend
% k) F5 T+ p' k) r$ w0 k& @* `# Z* L
to setup-plot3) C9 f  @( ]* z# R3 d( O
! Z1 w' Z6 W! x7 G' D
set-current-plot "Trends-of-credibility"
' s( q' ?: ^9 N0 K. A2 W4 M

) K) C3 O7 q/ \+ O  |- a% Kset-plot-x-range 0 xmax
8 J# r& _* q  M9 U, C: {7 A
- Q% I, ^1 @8 X; Q8 S! K- E8 ?
set-plot-y-range 0.0 ymax
, A5 ]' G6 e  ~7 X) w
end
/ V) p* t6 i1 E9 W( S& y
- d" I/ b6 W: ?" e$ p; ]: _/ k" @to do-plots  U" K) J' @& ?
set-current-plot "Trends-of-Local-reputation"& N. U  j% |% u+ N8 ]. z* h4 v
set-current-plot-pen "Honest service"
1 H$ L( ~  E9 w) n3 E/ Iend5 V0 c" Y% v5 M) f( H

0 c9 D* N- n) H$ D" Z; t[ 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.
" @! Q% `3 _9 R7 N2 `0 q
* @- ?: i- G- e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, 2025-11-22 03:11 , Processed in 2.786634 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