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: 12470|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:1 ^( y& F# F9 b0 D* g3 W
to do-business 2 N. r" t# g* \" E
rt random 360
1 g% m7 _4 v6 J6 [7 Y fd 1
% V' z  v! u9 ^ ifelse(other turtles-here != nobody)[
( \3 }9 |: @! ^5 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.
$ v2 U7 X  S5 N4 v* |+ a   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    * c* @1 S" s3 \+ y1 P* f5 Z
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
. Q2 N( T' v1 s2 a; U   set [trade-record-one-len] of self length [trade-record-one] of self
- F: `: b5 _6 t% ]   set trade-record-current( list (timer) (random money-upper-limit))
* [' L! B3 X2 Q5 j+ c4 j6 i8 O8 h" ?  o
问题的提示如下:
2 F8 o; Z3 B9 T4 ?/ t) w, X# l" ?& f4 b. v
error while turtle 50 running OF in procedure DO-BUSINESS  G1 ]( N; r7 F- |
  called by procedure GO
+ T0 Q; z& w9 ^$ n- aOF expected input to be a turtle agentset or turtle but got NOBODY instead., h; S# k" F, v+ [6 t
(halted running of go)' \4 X' Q6 f- W0 _& c

9 ?& k) Q/ G9 M0 S( E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~~  G' q6 i4 E, O3 E6 w
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
; _. x+ F, l' H$ H  X- ^0 h. |globals[
% n1 L+ |5 [+ l' ^7 Jxmax/ u  W( G: n& y) N0 y
ymax
$ m2 n0 \5 ~) w: g+ Sglobal-reputation-list
0 ?4 d! {  N) {, j$ ^2 R. C
7 U, O+ G& n+ Z  J/ |;;
每一个turtle的全局声誉都存在此LIST
6 y% j8 x" s* A! ~credibility-list- j8 B2 f2 x) P. a% d: e% K5 Q
;;
每一个turtle的评价可信度
5 j& Y7 s5 A# p: ?- c1 z/ ^* l6 D3 Fhonest-service7 ^& d7 a- C; f( V* l# p4 t- d
unhonest-service
) |3 D0 Q% A. H3 q5 s' T- N. s) roscillation
% q$ \  j1 k# ^) f7 ?) t; D2 S0 I. Urand-dynamic
9 ^. r( E; N; y0 v, B6 v& X2 n]' y+ ?+ `0 R; w2 W0 w! D
! v& L" E# b, }
turtles-own[
8 V  H- J+ u. ~) D. R: B! {trade-record-all
  E5 d; h, y6 _; p. j/ J;;a list of lists,
trade-record-one组成/ O, O, v9 g' Q. O
trade-record-one
2 @% g2 P3 f5 E" G* i! N( [# n+ };;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录0 ?3 F6 B$ u$ Y( g
1 B9 I" v, x& F7 U  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]]
' }  s# @" X1 R5 a7 ftrade-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]( ?* K5 D& U% Q0 |* h7 |
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- M. t9 A1 y# D
neighbor-total
3 G1 O, b* S3 c;;
记录该turtle的邻居节点的数目
( K/ s, {* H5 W: Etrade-time' E, E9 D, o. K; v3 G; ~# j
;;
当前发生交易的turtle的交易时间
. O6 r) A8 D9 ^7 x$ rappraise-give
9 @5 B. w! r5 l/ w) c7 R/ r) p;;
当前发生交易时给出的评价
5 r+ M& D1 m) Jappraise-receive
; i3 p" e9 R* k( e' Q( J- G;;
当前发生交易时收到的评价8 _9 p* `4 A) a9 o
appraise-time6 ~6 n' J! B: J; m5 s2 `) n
;;
当前发生交易时的评价时间" P) G1 n. P2 Z# I, K" L! w4 o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 o; Q) p) L6 {8 K& ^' c  [
trade-times-total
0 y: H1 ^* _& X+ i2 K;;
与当前turtle的交易总次数. S# y' o& [. P' y
trade-money-total1 q% L& h  Y3 v* n, `+ K: L
;;
与当前turtle的交易总金额1 b9 \3 D  l/ Y" p( d) X1 F
local-reputation" h- I( \/ q- b5 R8 i: l) J$ e6 H
global-reputation' M! T% K- H6 l: {  Y% [
credibility2 e* f/ z, F) }9 |8 v+ J. Q* r, T
;;
评价可信度,每次交易后都需要更新
) }% O3 D. V) tcredibility-all* o  R$ o2 |1 O" O" x( Y+ u) m
;;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 Z3 b" h2 f1 Z$ Q! p8 ~1 x
0 f9 V2 a: E7 T! A8 u7 ~. U
;;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
- E9 Y& {! j; ?4 gcredibility-one! f; ?# _" D+ {" {. J
;;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
! r. D/ a9 `+ \- [+ Uglobal-proportion
: L" s3 x. y% o' pcustomer
4 T2 R: d' f, l( fcustomer-no. m3 L1 i9 V, s9 g% X3 `
trust-ok
# e  ~4 m* Y$ V' Strade-record-one-len;;trade-record-one的长度2 z7 N- Q5 s- K
]
, s9 `' C# Z- [1 r, t+ S  l, {9 s5 }! n; |; a
;;setup procedure
) c9 I3 B0 e7 |# e$ y2 H8 k; b  Q- ^( }
to setup
; ]  g, Z) p1 r2 E2 j) a9 o) ]
. {8 n) a+ t# m1 I1 R1 eca

* ^) @  M: B  J& E; |9 e" M
$ L! _% B) r. k, tinitialize-settings

5 l6 d9 S; l1 C" i
7 A7 h  e% i* t8 s- a3 Qcrt people [setup-turtles]
% y, p3 y8 N3 z- \. y
/ P! m, X/ `' x" t2 i) k: A
reset-timer
: c+ c3 S" }+ W+ V4 Q- j" e

6 f& [2 J+ R, }# rpoll-class

' ?8 M. s+ a$ l2 r% Y/ |
; M% ]& {! I/ [9 a3 i7 D' r. Dsetup-plots
, A9 u5 {: k. b5 a9 B
# `" k) ?' m2 J1 M& d3 X1 D
do-plots

7 w6 |# w* q4 t- V3 {( k) E: V" a7 Oend
7 E+ e: N8 D8 Y: E# }2 P) }0 e) J- r2 n! J( Q+ d& ]6 G$ _
to initialize-settings3 E4 F& I0 L& ~
% g5 @- z6 F0 P7 m
set global-reputation-list []

' V; P/ W% {* \' i+ u% [% y/ U# \* r
set credibility-list n-values people [0.5]

9 s; s$ @+ U2 N
! ?9 D/ A: a9 X3 Z1 L, ]) aset honest-service 0
" o; P9 v. A# Q) _( i; u& _6 ~
3 k3 ]# n: p2 Q1 ^7 }. X  W. X
set unhonest-service 0

8 W; l$ P3 j% X5 A- X2 Z6 N/ S% w6 @% l6 y2 A' [
set oscillation 0

; H+ y  _5 O2 X* l( Z* v/ m! S% q) K0 l  u' [
set rand-dynamic 0

8 T/ i1 D0 ~& o3 v3 h' Cend
9 J9 R3 k' j& H4 u9 v/ s- R1 H' P* o  J. _  N3 w
to setup-turtles 0 ?6 x; ]: x2 C% M2 ^
set shape "person": H( K2 N- c1 c
setxy random-xcor random-ycor. j' W! G( y8 i! `) q
set trade-record-one []7 |9 L' f) X( Q7 J) \5 @
: [$ Q  w* y5 Y* L
set trade-record-all n-values people [(list (? + 1) 0 0)] / h% R2 `( |% g

3 X% k$ f+ Q; T5 e4 w; [; cset trade-record-current []
' q5 S' B& ~( Yset credibility-receive []
0 T# r& u! u0 |$ T+ rset local-reputation 0.5
, @# B  ?6 l, w3 G: mset neighbor-total 0* r3 i$ d# y5 _5 C/ I& L+ ^
set trade-times-total 0
0 @& b. u9 ]$ A5 `* x( I( Zset trade-money-total 0
1 K. z! b: f  G1 g+ @set customer nobody% m! r3 z. Q; x& s8 j& A' D& b
set credibility-all n-values people [creat-credibility]
0 b2 {  W" \5 l1 Hset credibility n-values people [-1]
; U( k! y- p# dget-color( G& w$ p& b1 ]/ D. ^% _9 h

" ^( w  y; R. n! Lend
- _4 `( w, D# p' S" S9 A3 L! d; U5 _8 J  c& J
to-report creat-credibility+ G4 _, B, I0 J5 S! j# u9 l1 d" q/ j
report n-values people [0.5]/ X, @, ]/ `/ a2 g2 I1 f
end
& h: o+ j3 C+ G
: f  U6 e5 x* O; E3 P) @to setup-plots
* h% R( \0 ], j8 y
5 F& R1 V" ^2 j  v7 D0 Iset xmax 30
. W7 X! e  e7 D6 N% f; c  l

; z2 ]9 w2 P1 D; j! s: rset ymax 1.0

' a- \4 _1 b: S9 `9 W3 U# C. _% R/ k/ {$ U- ~
clear-all-plots

3 l: H% z  N9 N" b: b: P5 {7 w0 I: X; T( q
setup-plot1
& |# l" b. N$ R5 _) m5 K

& y; @/ f' m( x: E, Fsetup-plot2

. p8 I, k' w" N% Z# X: R# |, m  L3 c$ @5 _4 V7 b5 O5 P% e
setup-plot3

6 ~2 M' p1 a" x$ Mend" [' e7 K+ \- k+ [1 {
' ?' a2 m2 S' L  F2 T
;;run time procedures9 R. ?; Y/ ]& V9 p( ]2 n& @

7 W, X8 S9 x( Z1 B6 dto go  o# h5 F. O$ m& S' ~
; D& [' j7 M! u1 R, E
ask turtles [do-business]

( A' ]. U+ V7 e- ~* }1 Uend
$ F2 W6 J& \: g: n
. m: C7 V; H( t1 }3 Z) h* Pto do-business 4 M; h3 p6 |! x+ ]8 T: `$ q
  M/ P7 _; ?. [  l9 t
) v: g4 w, b% x+ h3 e7 K
rt random 360

5 o7 N* F2 K3 J: r( N& {
# M& F0 j) E& M% R4 A$ Y5 \fd 1
/ P( R- W7 K( p7 M/ m
6 ]. p3 n" R( a  R; s% x' w2 ^
ifelse(other turtles-here != nobody)[
8 j+ ^4 d9 u9 Z  R7 t5 T) S
$ i& L$ C/ |0 j; B: |: P
set customer one-of other turtles-here
, g& K5 S+ [1 ?9 d  Z  t7 V

5 A* G3 T4 J& J1 `+ P' @% };; set [customer] of customer myself

5 [8 v( c8 |1 o! e; V6 N$ H2 `) I
: |7 X, |1 |* T7 _. g. oset [trade-record-one] of self item (([who] of customer) - 1)9 I6 O1 d" }  K$ P( S
[trade-record-all]of self4 a$ s2 l8 `/ k, u
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

# P6 |. t9 p3 v/ C
  O" H0 p. r& H% j7 p7 _: e, x8 F0 Vset [trade-record-one] of customer item (([who] of self) - 1)
# w7 o  B, o  V% I8 i5 d' F[trade-record-all]of customer

( N& @' z4 X: x; p3 N. Q- y8 _" O6 f. [
set [trade-record-one-len] of self length [trade-record-one] of self

1 T) I: H8 }. ~/ U7 l  }
4 O6 p" d: [5 v$ T! @# m" e: a4 z) wset trade-record-current( list (timer) (random money-upper-limit))

& v; y( Q' b, D" Y# p8 v# e
$ }$ d& Y0 e& \$ ?+ oask self [do-trust]
( E: @- a5 U% s- d3 M;;
先求ij的信任度
; f$ Q! f; [8 u0 j- A
4 ~8 N6 O9 U( H6 m' y8 lif ([trust-ok] of self)0 X; H5 z- D* F( }7 t
;;
根据ij的信任度来决定是否与j进行交易[
' a0 k6 A( F# a+ L' [( xask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself% M2 ?0 M6 r: k) z6 Z  [& Z# O9 G+ T
8 ^/ N- l5 Q1 n0 w% [
[

8 M4 p" k! M3 p/ T6 o
8 o4 h2 k* u! P8 m1 ^7 j7 ldo-trade
( ^" k5 D6 V" B3 }/ s. B5 t

% H) l3 O9 a4 s. i1 |update-credibility-ijl

5 Z( I( h: {' Z% _  Y- e" o+ f* a/ `- Q6 j! @
update-credibility-list! E# x1 p) {6 g7 q, e
& C+ F, i6 M, e* z/ Y2 j' y! P0 t
& ?( I' Y# i  X5 ^. h  F3 U
update-global-reputation-list

5 {7 e" y! g2 D8 Y' `5 }/ P$ u5 |. X% _2 K% T6 \
poll-class

) t( w7 n% m6 o: \/ o3 ?6 I3 l* ?5 N/ v0 [6 q
get-color

3 @4 e2 L) V% P' g) ^
0 m4 J3 b# N# C: m7 j* Q]]2 N1 j* `% {6 B; ?5 [$ U6 w8 S: N. t

6 S! q; w3 a. f- b# i;;
如果所得的信任度满足条件,则进行交易0 l% R. h& M, N* f7 p: E2 X; ^% s5 D
7 t0 [+ h. _; ^) g4 T
[
& D: l1 a9 _7 y, }! |7 M8 D
$ x, F/ x1 V9 w
rt random 360
7 |# a' \  z  u  i/ k+ z
+ [2 J, }) H4 e1 X8 }1 @# O* _
fd 1
/ E4 U3 w6 [# e+ f  Z1 o7 h' y

8 V( d! C4 ]' s]

; E  N0 i/ ^9 f8 D3 G# k1 l
" f0 R, _3 `- ^$ \+ Gend
7 |9 T# z$ C, u  }- F

; k& z( L  Q+ f2 }! Z6 Zto do-trust ! k* e5 U! j  s" G8 `, [
set trust-ok False
  Z; l0 w$ C6 K* Q3 B& h! ?/ |5 v/ _9 K# |- q/ l5 S0 S  ~
/ C% Z% ?/ ?1 N5 R1 E7 O. x5 I
let max-trade-times 07 K2 J- D: v0 e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 ?4 T, w; c# E) y6 q: I& ]. N
let max-trade-money 08 E+ n2 P3 w" S( o  y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 X# O# ?7 L" Y0 v: O, Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! M) t$ [+ N) l' S% P  |# j, O) v  O8 z& d
2 @+ l! {8 O; E; |. [7 H
get-global-proportion
6 X3 d) j; B8 {9 Ilet trust-value
$ i' ~8 w% F3 U& O; Nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
6 ]$ E5 [* k4 H$ F$ U0 K' s
if(trust-value > trade-trust-value)6 @: e* G5 g+ o/ s6 o
[set trust-ok true]
8 `8 n( M1 B& q/ Z. y' }) hend
( E( \2 s( z3 n  P
9 r& T6 R2 Y/ yto get-global-proportion% g3 u+ D) k5 Q# y! U5 v
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 {- W% z- q+ R3 J* L1 c( D) O
[set global-proportion 0]! P. A! ?) L/ |% |9 P. F8 j" J
[let i 0
$ ]0 c7 @, B$ [' x# Zlet sum-money 0
6 L9 J; {0 e$ t( T0 Qwhile[ i < people]
2 z1 m/ G) P- F) \: C3 U0 ^[- \+ T/ H4 Z9 U- b: B* O( @
if( length (item i  k; G7 I& Z; K* d7 K: ^- K. x2 A
[trade-record-all] of customer) > 3 )

7 V, b# r3 J) o: A' W[
: r8 j. j- d- a4 q7 y- m! d4 u0 ^0 bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))* |# l! `- ?1 `' w6 M4 y
]
9 y" s1 @5 ^8 []( r: j" c8 k% m4 x8 x* Z/ e5 ]6 a
let j 0. M4 t0 @! j# g5 L$ M
let note 0
6 P( c& A3 I- }/ N7 |: E: c7 Pwhile[ j < people]$ p3 o/ V) D% l/ I6 M% Y0 f/ O
[+ l/ m  }; X, B  U* |
if( length (item i) ~$ v- m+ P5 |: ]
[trade-record-all] of customer) > 3 )
% Q& R6 w8 r9 h; v
[
" u: _! e* o- k5 V) xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ H1 b$ _% a0 b9 ^+ E: Z1 [
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* S0 V/ o" e/ s* A, m8 Z. ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 d, Z2 x6 |) d( z: @" A
]
1 D9 P9 G: D8 k+ L& R$ j]
  C$ E6 G+ c6 N8 w. Z7 |% ~, Bset global-proportion note( q# R7 U' I. I* g+ R; U
]
$ s0 c$ B* B6 I% ?  h" w, L2 V7 pend" j) |0 G4 D3 |5 F! S" D0 \2 g

5 f- n, g, M9 ]% ^, Q7 wto do-trade
3 y0 j1 X+ m' ]; {3 ?;;
这个过程实际上是给双方作出评价的过程
) p5 x' e( Z" [/ ?. L; n( x% ]( Dset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
! r; l4 H$ f- Sset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
9 m/ u2 l6 g4 j& V# Xset trade-record-current lput(timer) trade-record-current
( u$ W! I; n9 [: |! k  u( @;;
评价时间5 F! ?$ X6 u9 f: R* y
ask myself [3 g5 o, h! Q% g' U+ @# m5 F1 z
update-local-reputation
6 T- @- b5 _  _* u2 Hset trade-record-current lput([local-reputation] of myself) trade-record-current
4 A, Y; m0 _, S; r+ F6 ?: N# q]- B1 ?2 b' b" \, F  f& c* s  g
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; R# p& p( `" k! L, i
;;
将此次交易的记录加入到trade-record-one. A% D+ [* g2 [; g0 W) x; h3 ^5 m
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 Z: u/ N4 D. {% @  {
let note (item 2 trade-record-current )- R5 T) K4 [8 v
set trade-record-current
  L5 I4 m8 t2 M% ]7 t. U6 t7 g+ a(replace-item 2 trade-record-current (item 3 trade-record-current))

0 \9 X. d1 v6 _! t& @8 C3 Vset trade-record-current' E  j. f; [* |! a8 E
(replace-item 3 trade-record-current note)7 {  C( E& F& U/ M, n
% m+ p+ t. f* ^: J$ Q; L  ~% x  ]
) M" Y! ~3 Z+ ~& ~& l2 S3 x1 q
ask customer [6 z$ v+ I; ~. v/ v* r8 }1 S
update-local-reputation+ d5 g. o7 D" z
set trade-record-current
1 X9 B* P/ P; q, X(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 q0 w  S& c+ {4 Q+ r9 `1 f3 q
]) U- i0 N% y) x5 N+ r

( @3 U: R' Q- f! @' Y, z

3 q) K6 s0 K) e( Mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 k  H: F; ^6 [7 d
2 `+ D  x- T2 E* I9 s  {( `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ i) v$ b# \  v& Q
;;
将此次交易的记录加入到customertrade-record-all
; N7 z; y5 }1 i: ]$ k! @# rend$ K! s( M/ c% `! ]
! N- e1 j" D% U7 @
to update-local-reputation
0 r5 F$ s- D5 b2 x1 wset [trade-record-one-len] of myself length [trade-record-one] of myself- I& y' ]- X) b! @! g1 ~! w+ a
& [6 X/ y! ]; F# v

! X$ G0 ?5 U0 B7 v$ E; H' u* U% B;;if [trade-record-one-len] of myself > 3
) F9 e' X5 @" D
update-neighbor-total" ?$ ~: {+ D8 B' e
;;
更新邻居节点的数目,在此进行
' ^: G9 ^7 G  X0 I. J$ Z3 @let i 3
6 H4 P8 M$ k, H% S4 k( ]let sum-time 0) H5 h4 n' k- w( r/ T& o& u0 S. {
while[i < [trade-record-one-len] of myself]
! I. v3 Q& ~6 b1 b: }[. @) T; c# `0 {- D1 B! t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )  g( f- n4 u5 P8 `3 X* o3 I. C
set i5 V% k: f$ x, [
( i + 1)
/ _  o5 K. O! W% e) n' L  d
]. x+ }+ ]- m! ~0 S/ o
let j 3
5 ^+ n* |! e+ ]let sum-money 0
- E# t& i5 Y8 m& |while[j < [trade-record-one-len] of myself]# E" q* O/ a! \/ j8 C# d/ c* Q8 A
[
7 N- w5 V, L# Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
# O& a$ V7 {' k4 p4 ^* _/ Pset j3 \4 c1 i2 y* u$ r4 G5 u: J9 N0 \
( j + 1)
  t: P, I+ A/ ^6 _& m6 |5 J5 P  ^
]& J3 v. t( n* E0 F" S
let k 3
3 y- z$ `3 ?, w* s4 A  dlet power 0
7 f% Y4 E) F! E8 U5 P& Z+ O, Alet local 0
2 w/ `* m" @7 S/ W4 F1 S/ J: {while [k <[trade-record-one-len] of myself]
: b" t8 w+ X& h, x- W3 V[
/ C& _2 L& l7 j  r  L; G- ?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) . j# ?% R* N- }
set k (k + 1)8 g4 W* c  S# {1 h8 h
]: `* ~: B, g7 B2 l& B/ e
set [local-reputation] of myself (local)7 Z( i9 ~% K- e, A4 [$ k0 _$ A! ]& d
end9 A$ Z+ n; g& ]. o- `: z& ]1 k# |

+ r1 W2 q& {- G, Q% {to update-neighbor-total' |( N. ^/ U- O% L6 K

% C: s6 {* D: L  O9 Aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( [5 n) n1 p0 H$ V7 w, R% V: D
: `8 _4 J, s, M2 D. y( Q: }' s/ `
9 J1 a% q8 i' Y( A  p
end+ W) L) k/ N! V8 }* t; [

) L9 F' W9 O9 r/ I9 B* Tto update-credibility-ijl 0 a3 [. X+ K$ V% q* M

+ ^* e% h' t* E6 E& j# x# {;;
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。! }: c$ ~8 k; l- F; ]5 ]& K
let l 08 G* {1 o% p, k" B: N
while[ l < people ]. Q; c" V; y! @1 g1 {
;;
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
$ r5 z6 [# R+ s6 J- f: i' A[3 e" y+ Z. m. e/ V5 j3 n
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- N) T4 j# i9 R
if (trade-record-one-j-l-len > 3), M5 F* S  P  h* r+ z
[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-one8 y1 ]% l2 o$ w, `, I6 C) Z& Z
let i 3
8 |, B/ h0 L/ x# s% d' L* klet sum-time 06 l1 i& v; j$ r9 a0 h
while[i < trade-record-one-len]
8 H5 _% I  ]6 s4 I[& N: h$ v2 N% ~. o9 w# L
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& T; g3 l$ h6 p
set i% w0 f- h! {/ i
( i + 1)
) g' N% s* Y, m5 P9 [- {4 E
]
( R% b6 t( R6 n  r" I2 M" k0 H1 I2 }let credibility-i-j-l 0, i8 n1 }& G8 {
;;i
评价(jjl的评价)
% k2 u8 t! Q$ X9 G+ D) glet j 3/ E5 c+ @9 Y+ X3 V) y
let k 4
% m: Q! v1 |6 k. f6 N  r3 @while[j < trade-record-one-len]5 V/ G% V+ _( A+ u  I
[
* O+ N" Z8 Y% \8 Z# E3 P, Ewhile [((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
/ A# W, j6 y1 o1 d% @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)
7 `4 Y/ D" G, e4 h9 P3 O+ rset j/ o& U# t7 y3 Y
( j + 1)
3 o/ C0 y/ J: x. Q) H% o1 H& \8 G
]
8 ?5 I- c6 C( ]$ sset [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 ))
. X; l9 f9 k% \' T5 X% f7 N2 u5 V4 l9 m# C# L8 I' ~1 i
- h( Z* a. s% ]* H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 Z5 D: P* H0 I5 r
;;
及时更新il的评价质量的评价
4 h3 m- p7 J  `2 F1 vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ J8 Q5 |1 I+ {* _8 C2 Cset l (l + 1)
' P, ?  U& _( w]3 C7 V: `" o1 g. k9 X$ d8 j' n% e
end
; U$ \* W/ U# j& F6 k  a- \2 \8 A& K! t) Z+ G  v0 L  J6 ]
to update-credibility-list" p" v* x& h$ w. m
let i 0# i# u: s9 n7 n0 A7 o
while[i < people]
3 m9 Z1 ~' T+ h8 j/ a& m  j[
  {  Q& v. g! v3 ~& alet j 0
8 L- S: ]1 \; l7 [& s) b* Tlet note 0
6 r% i  w4 @! p3 a7 clet k 07 Q9 J9 s! Q% U( ^# q1 [3 }
;;
计作出过评价的邻居节点的数目) n! R  @7 \/ g3 }. M6 f/ \
while[j < people]) f7 d7 Y$ T6 Y0 {
[
* z! Z* o3 ^6 L5 S; ^if (item j( [credibility] of turtle (i + 1)) != -1)
7 B  i- A$ q+ s. B  x;;
判断是否给本turtle的评价质量做出过评价的节点
: |  O# V1 G7 q8 i9 U[set note (note + item j ([credibility]of turtle (i + 1)))
) d$ q0 u' }" `) Q8 Z4 w;;*(exp (-(people - 2)))/(people - 2))]
& j* E$ ~( |( a+ o9 ?9 X" q4 ?
set k (k + 1). e- N8 x; N( Y8 `$ |
]5 f$ S+ K: ]5 a0 P5 e4 E
set j (j + 1)
: A3 Z1 M- T+ r" q+ c3 C]
$ T. J  }7 y. u9 N4 \  y& [; [set note (note *(exp (- (1 / k)))/ k)3 f+ G6 P! K3 I& T5 h6 F
set credibility-list (replace-item i credibility-list note)
: q! _- q8 u8 c1 }; {$ p' cset i (i + 1)# z8 [9 ]4 p+ v- |  D5 t8 p! W. m
]
8 [( D$ k9 l. P' {end: u3 O2 F! K( Y) \( R0 [+ k% m. ^

; R' Z, Y0 x6 G) yto update-global-reputation-list
# l+ ~* }1 E+ H/ j, Ulet j 0
' K* a5 |5 }# o7 p9 _while[j < people]
" H2 F1 v, `( n! e7 |5 ^. @1 V% s[0 q; ?3 \" h: s$ D; `7 u( Y. Y
let new 0
" M" U" \4 T* M" s: T$ P;;
暂存新的一个全局声誉
. v0 n  W0 {! p3 y% g3 G+ {2 slet i 0
/ k# D0 }6 b) P2 C8 W' {let sum-money 0
7 w" E" o1 t( w- g7 ylet credibility-money 05 ^& s5 J  k8 b. `! T" ]2 ?6 D
while [i < people]
$ `$ s2 e* t3 m, f+ u2 \& ?7 r' \[
! D9 z% @& Y$ X0 H& Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 A* n8 O( q# T) E3 [- r5 I8 m
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* ]* R9 e, f% ~' Nset i (i + 1)
( Y; j+ b1 p* ^8 }. T, P]; h; {5 m; N- _2 @# j  @
let k 0
1 K8 N9 J  S  u$ G% J- j/ Olet new1 0
! u' {4 B3 w5 ?( V2 X- pwhile [k < people], |: ?6 }& S1 ~2 |9 ?
[
9 T0 o- r4 R) ^) M! Q# C$ {; p- Yset 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)! D; N! l" p. D
set k (k + 1)1 n2 r0 w, H, P/ J
]1 J0 C! o; u3 y4 a$ W* L6 ~, a2 Y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 O0 H% w9 ?* d. M0 b/ E: d% `
set global-reputation-list (replace-item j global-reputation-list new)1 ^& w6 I4 C4 a8 F
set j (j + 1)8 D0 r& s# A! N% k3 B
]0 p5 N& z. W( j, q
end
( A) i% W4 f* K$ T$ X; s9 I8 E4 A
# V8 p7 ^0 b5 `& G: m6 \; t* }4 I$ i$ j* J
1 j2 F9 A% S3 `% l
to get-color
; K6 L" R. Z% a2 r2 E
6 X- T# u: i% bset color blue

/ U# o/ u/ R: T9 ^) {2 z! X( Xend, c+ A0 H2 F0 K& e7 D! x
2 j1 ^* U5 E6 w) j" p/ X( q
to poll-class* x1 u- q& y, w8 _
end, _: @) M3 e0 Q3 }' v$ k
& v) ~8 O# W9 O6 M
to setup-plot13 \( z3 ]- n3 a1 A% @

& P9 a* I, t# g4 kset-current-plot "Trends-of-Local-reputation"
  M/ p4 F$ {. \1 u
+ ]# ]  E1 Q) y
set-plot-x-range 0 xmax
! m2 s; {, W3 ~- a

. r" L1 |2 i4 ?  G$ [4 vset-plot-y-range 0.0 ymax

% b) ^5 M! g/ y' d7 R, b; m' mend7 T; h# ]+ y' h9 Z

; \4 G" n- Y( y. Kto setup-plot2  P) S' i& `  {6 F4 e

$ g& r. _( H, W, P0 I/ P* Zset-current-plot "Trends-of-global-reputation"

  U" |. F: h* t
$ [0 l7 O% w1 p' J  `set-plot-x-range 0 xmax
- _/ I0 [" B- f- e& b2 ?
! j3 T0 L$ N; i) }$ g! W6 m
set-plot-y-range 0.0 ymax

2 M6 e3 N( V; Xend
6 O5 o/ R4 p, n' j. r- p( {/ b6 t$ }2 J8 ~. ~, D
to setup-plot32 _) u, k  I& m$ P, V% Z

  T' b7 q' D& Fset-current-plot "Trends-of-credibility"

; C, K) c5 p. y& A  {* P+ Y5 b: o1 z+ ~2 H4 R
set-plot-x-range 0 xmax

5 U' U1 h# s, B% j  B6 a+ y2 l
5 Y( ]/ {+ D3 e) }/ zset-plot-y-range 0.0 ymax

8 K+ k# O8 X+ q* F' H( kend3 J9 b# t9 L" }' Y3 \9 H" Q
+ W  M9 q$ @' D  U
to do-plots
5 B7 s" u" j# }1 z# p8 pset-current-plot "Trends-of-Local-reputation"1 l7 K9 p7 C: p* Y* w3 r
set-current-plot-pen "Honest service"
3 v3 h" |+ L) N% a: i+ |6 Jend9 p% ]% u3 h+ F# c1 Q

, X: m* g2 P* s6 T$ p[ 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." |6 d1 ^6 r9 ~

* a- J/ I8 r3 ?: @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, 2026-2-25 21:56 , Processed in 0.023580 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