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[交流] 关于turtle的使用问题

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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:% K$ x3 l' K2 Y! U
to do-business
* a$ k2 L+ h3 f2 Z1 W! R5 } rt random 360
7 U" P1 k# j1 t# P% g3 g# { fd 1
6 [2 q0 w0 b/ e' j$ j ifelse(other turtles-here != nobody)[% `& F. z) o- \5 z& `! B
   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.
. I/ \( W' G7 E& O9 ?   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self   
* A. T# c, ?- k! E  _   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer, P2 N3 q# m" [& W& e
   set [trade-record-one-len] of self length [trade-record-one] of self7 W, \# O" N8 h$ G9 B6 V3 N
   set trade-record-current( list (timer) (random money-upper-limit))
, k( Y/ \  I' C7 q
3 O- Z( ^$ D& B! C问题的提示如下:& D% P8 e; b( W% J' w

* R7 Z1 @. W1 E2 i" f0 f5 ]error while turtle 50 running OF in procedure DO-BUSINESS/ T* ]! ?: u3 a
  called by procedure GO1 w. C* }  A- r( C+ _2 O& V! C' T
OF expected input to be a turtle agentset or turtle but got NOBODY instead.+ J: I) a# A% X5 @8 l
(halted running of go)7 B) y" C: R8 K& q

* w9 {0 `  s8 i6 }2 ^* ~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~~
3 o+ R# L' W. T% f% C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.

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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0 o( k. X8 W5 c  d  g4 [3 x2 B  d
globals[
4 b6 g; f- `/ s- e1 m& S7 \4 L- u) J9 j& ~xmax
5 S- f) |5 T' C! {: ]. nymax: G4 Q8 J5 g" T* K( L6 ~
global-reputation-list; ?$ |; s1 D/ e* R: ^
/ q9 m8 S' w# `' W( h# p+ z8 o: y
;;
每一个turtle的全局声誉都存在此LIST
( S7 A. g2 I' E" ?  y" y6 Hcredibility-list# k" W$ k0 m- g
;;
每一个turtle的评价可信度6 K: v8 A8 N* d( S, z/ n
honest-service
6 F9 e4 R6 r! v8 wunhonest-service& x' H. U4 N: h+ H) v+ i/ x8 D% J% L
oscillation6 a( t% }+ @  n% a/ |! n$ Q
rand-dynamic' [, @1 a" h2 m, z9 U
]
$ P; b" ~& @9 P9 ]" j8 O9 |: D8 Q3 d. l4 ^
turtles-own[
/ O( b& u1 r9 L' ~" ytrade-record-all
9 l9 E9 S- b" G;;a list of lists,
trade-record-one组成5 q4 ^) T7 H6 @) V
trade-record-one
* \, n1 q% P; M9 [& w4 j, r$ m. G' ^;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录
% ?* j# b6 I- Q/ M8 I9 w0 D1 [/ w5 t/ q% 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]]9 U1 E* D/ f* ~9 G
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]( T* w) [6 `- q2 i) H) s0 j
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
! q, o2 W) x. x/ I; B" Qneighbor-total
( f# Y, E2 H; c;;
记录该turtle的邻居节点的数目
% c' W' C4 e, w  ~& G- ]) F! btrade-time
; z+ D* H& {0 U3 ~' r;;
当前发生交易的turtle的交易时间" ?3 t7 {* J" Y4 o, i- B: V. ?
appraise-give
) K* T  T8 P' U* b;;
当前发生交易时给出的评价3 B* j7 E0 B/ \, F0 K5 ~* |
appraise-receive" N' e" `) f$ F- ^! _& O
;;
当前发生交易时收到的评价
. r# L, z0 l/ }. X- u# qappraise-time0 m& P+ I" Y# N- B' h7 W3 g
;;
当前发生交易时的评价时间3 j1 ^  h- O# c5 e: A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" Y  ]6 F; O# b2 utrade-times-total! d& x& |6 m8 s# k% X# d
;;
与当前turtle的交易总次数
3 p6 v" Z2 V. r2 ntrade-money-total
1 E  b& [1 |( w. f+ [;;
与当前turtle的交易总金额
: Z3 i, W1 Y( ~+ ylocal-reputation' d. f) h3 h1 w' o* X
global-reputation/ g) t0 Y) Z5 x) \
credibility
2 ^# z3 D- B& G5 w! s  L' s;;
评价可信度,每次交易后都需要更新! P/ C" n; s7 w( T
credibility-all: H3 l" a: C3 |9 b+ W
;;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
) r7 ], X2 J0 V7 m! m. a# u, w2 {- R4 @  r/ ^, [, p
;;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
( R* d- C6 Q8 P/ N, o! I1 o) e- g2 Xcredibility-one
; Y% {$ t& @9 z) q' c) y( o;;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) n3 j2 e) q! B
global-proportion
! K; R& s  V/ Q0 [7 ~$ jcustomer$ r' c- F( J/ R+ V7 A1 g
customer-no0 y+ W. h0 _- G# _2 b* N, w; u
trust-ok+ l# t1 s% e2 b& V0 Y
trade-record-one-len;;trade-record-one的长度1 A+ k& K9 ]' r& l2 R6 C  \* C+ i
]
0 v8 A1 x6 |( X) B( O* M" [3 j7 _& z/ {1 S' S  l% ]
;;setup procedure
0 P/ O" T% q, K+ g! G2 p) Z/ @" B6 b+ {9 F) x( G
to setup2 G, [- I+ e. Q. ^- \3 O
4 J. }! d* U9 T
ca
, M; P' v+ G5 S; N6 _

6 ~4 h1 V; k# Rinitialize-settings
' w& ?- x* P! W
5 u/ t$ w- b! D6 r3 F
crt people [setup-turtles]
7 i  Y- }+ U3 |3 s. f4 F( p, X8 G
+ l/ W7 m0 x( F. Z% c, q# G
reset-timer

- f7 o$ W8 v. D: ~
2 a$ V3 q0 o' A7 r8 \poll-class

# R1 ^6 R2 v) V& L* Q6 ^# b9 Q
4 O$ P. Z4 p. k8 Z+ v+ g1 fsetup-plots
/ a4 x( c5 M1 e, T

: q) `) K# X1 r( H5 ^6 c) {9 ~* W! Vdo-plots
. h* M$ o$ Y7 v; {% |
end3 }1 H: [- p1 \" T- s- y
. b6 O; j" _; T- R+ c! \
to initialize-settings
5 q& T+ ~& I1 R9 t, F5 y1 Y/ L
4 I: H1 _9 G) E1 A& {4 [: c0 dset global-reputation-list []
  m# |. x2 r4 s2 D7 {3 s) [
7 z4 D* V' M) d2 m# U' Y: s
set credibility-list n-values people [0.5]
4 M5 I. U0 H% n# e

9 o. s& L* c2 Jset honest-service 0
( \% A( L* H- m. n% K6 {0 C
: q" ]6 ^9 p% M0 J# p
set unhonest-service 0
8 U" S% F# k7 |  _' v

! j& o( q3 @7 W9 j$ K$ p) R% h9 Jset oscillation 0

" r! d" p; [/ Z& L9 K$ J% H6 l8 C- l
set rand-dynamic 0
3 b# B2 P1 e, T8 }  i
end3 E5 Y  Y* ?4 X. b

8 L$ N% \6 ?# A) n* Pto setup-turtles * P% u1 X: A) t9 W& M4 l
set shape "person"" }" @$ y/ D2 r7 _$ P
setxy random-xcor random-ycor
8 X( \6 r3 d! _' G8 Sset trade-record-one []( H8 b3 J3 q" u% q+ K4 Y8 d) N

4 m. @' M3 I" v7 _7 Aset trade-record-all n-values people [(list (? + 1) 0 0)] ! Z0 N4 f; J$ |8 Z9 R

1 S: \$ E. c3 }set trade-record-current []
# o6 ?/ E& I% v0 {3 W0 vset credibility-receive []0 v8 G/ @- R9 n
set local-reputation 0.56 x' P0 U1 p+ M/ o0 K
set neighbor-total 0" M3 ?6 F" v7 R
set trade-times-total 0
; P( k0 F* N. D5 K5 A! n% u; Gset trade-money-total 0
% S5 f' ~& X# J' D1 t7 ]+ sset customer nobody
$ l8 y: o& s2 b6 K9 x, nset credibility-all n-values people [creat-credibility]7 H* L) R$ m2 S5 h" @2 |% n1 l
set credibility n-values people [-1]$ t4 f3 T  S/ ~6 c
get-color0 p) x6 o) n- Q  l5 K+ e+ d
4 h9 B' g- @: {1 a9 Q
end  C" _4 f% R% G5 |* X$ u: Y, t
4 C' ]2 A6 Q0 P6 R$ M
to-report creat-credibility% F$ y7 M9 m: n+ v3 |8 r
report n-values people [0.5]9 P/ S0 [0 @$ t" r4 s% E
end9 O9 A2 |' c! U2 ?/ A

+ F2 {9 C" X1 }) e! h5 Eto setup-plots7 E( L2 z" T) \$ D. }( h- H# ?: Y
$ q3 b/ f% a( [
set xmax 30
3 c- E" z: T* }; O+ c

  ^) S/ a; F' F. Xset ymax 1.0

6 _/ |! ?# ]; J8 A0 k
) [9 Z0 ]3 i9 ]$ b$ V5 Rclear-all-plots

; H% u& T; q% P  d- T; Z1 t$ l5 ~9 Q+ x9 N  C# B
setup-plot1
! g6 C" c3 _; V8 p
% u0 V' a5 n& c9 s9 k# j
setup-plot2
1 O' Z7 {3 O  q
, O+ |; ]( H) f! O
setup-plot3

' c; o' ~4 w8 f. I; o  ^/ ~end
3 a  v. Y8 t$ a5 t( @: y7 C
$ i' }. R. O; z+ G  K7 S0 K! {;;run time procedures2 h! T6 `% F$ F3 y* O' L+ e6 N- E& e7 H

3 y  c/ x% c+ E1 Q; O; U  {0 ^to go
) b- q; _9 i2 d: K- v. k
+ D" }) g" u8 @1 D$ Z0 k8 Yask turtles [do-business]
2 ^  e* j! B  ~4 h4 J
end. f7 ?4 E; N: e3 M* q
* Y0 [9 M+ D4 j8 j6 Z1 H$ G$ k
to do-business : a1 T2 k* |/ d, p# a

( o4 J6 |# o0 X% B$ d/ f: j- ^7 `
rt random 360
* ~) _* e# `8 @& V, f

/ |$ {1 z' L, k" L0 P6 j) W4 Mfd 1

3 y" u, O# I4 ]  X2 o# |' Q7 ?
. }, F- N% W% \' y. i4 ?ifelse(other turtles-here != nobody)[

& f3 c/ G3 G2 W; w$ u+ R# v# B
0 D& J9 A/ e, t) t5 {; ]* S2 `( U: z+ Iset customer one-of other turtles-here

, D1 I9 W' t: H0 R8 E/ [" F/ |. s3 m8 }
;; set [customer] of customer myself
  c6 w; l' \1 j6 a1 X3 _" U
: G: F, N6 i5 w7 ]/ |$ b
set [trade-record-one] of self item (([who] of customer) - 1)- b, ~( x- T/ T
[trade-record-all]of self
, {; }' W0 l' ?9 u; @, p& z, w;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

! i8 u$ P" u' Q5 q0 ?; D0 _% D; W4 Q- `5 L( ~8 h2 m; M" D
set [trade-record-one] of customer item (([who] of self) - 1)* a# Z, L7 X+ N) G* K7 R
[trade-record-all]of customer

. J1 }- H% d* w$ N# d) }+ ?8 K
* `5 t! b3 S' H# C9 R) e0 l  yset [trade-record-one-len] of self length [trade-record-one] of self

/ Z' H' R' j+ l# U. k2 V, J  L. f. O: R0 k4 q. Y7 C
set trade-record-current( list (timer) (random money-upper-limit))

$ |8 H; g- D6 K: p8 A# @$ X* ?7 f' H9 V+ @4 O
ask self [do-trust]( n* w0 I9 {$ p% f/ |
;;
先求ij的信任度
5 |; P# {6 _8 n) z( |5 g9 R2 h/ n: X7 K2 \; \! H9 P% e% \& y
if ([trust-ok] of self)/ ^3 [) q0 u/ Q. u( |/ m1 n
;;
根据ij的信任度来决定是否与j进行交易[8 I/ o2 f5 n& C, b/ q3 }
ask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself4 H# G5 ?; p+ ]8 s2 D+ T" g
/ E3 h% v* U' ]$ }# {; d+ c
[
% Q* k% K6 ~4 V" D$ E' [
( I2 ^, s  X  E
do-trade

8 W: n( ~' H0 s: G0 T. h5 A; \7 b
update-credibility-ijl

& K7 U) c. {7 L  z$ Y3 O
1 W& A% L5 n6 A! wupdate-credibility-list
; @/ B5 G# ]" U) f! p2 e
9 b4 d8 V+ P* s

* u: Z- `$ d7 supdate-global-reputation-list
1 c1 L& t4 ^& ~0 _

' [& V3 z9 X1 j# g# qpoll-class
5 B* w- Z6 b2 h6 Z+ `* ?* e
6 \- `* N0 W7 w
get-color

4 F# }- j3 j2 a9 K+ v1 ?; L3 B% X; O0 m# I7 `. m$ N
]]
9 m( }5 u4 w* r$ C0 _, a- B$ a' S% `4 N6 V- M
;;
如果所得的信任度满足条件,则进行交易' T1 u$ f/ X8 `* ~  Z

* ?, M5 }$ k: q1 ?$ a7 e3 b[
& `1 v# O! }# I8 B

) Z+ Z$ G% F$ ~* W0 @rt random 360
  K$ K( ]7 ?+ L

4 U! O9 t$ i2 Y0 l/ v  Jfd 1

6 n- P; h$ o$ g5 @7 W
$ l8 B; u' `# Y0 K]
% ~5 b1 o* {1 d: R6 T/ F8 O
3 V+ ~5 A, o  k, z; Y2 n
end

& _2 ^- t& O/ t5 x2 {
$ E0 [2 z. p! M- @" @to do-trust
8 s6 \6 T5 I( W4 }set trust-ok False
3 R% O' v( }( g, E7 ?# E/ x! R$ ]5 _% s; j

' F+ x- O' q# Y" d" F" ^let max-trade-times 0& |/ K, V7 O' \* a/ M% }
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ M& I; q* t9 }. p1 R- F4 d& R
let max-trade-money 0+ l# `; ]3 ^: f# X* B1 ^
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 \! |+ P. k, s; x, |9 Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 m. _$ J) K0 g- x4 g& ]
" i9 ^$ p) d( _0 {6 X6 l
- Z  o! o1 L. H. K" Y2 c
get-global-proportion
0 ]4 o9 l" s. S3 D. v6 glet trust-value
2 k- R. Z/ T1 Y7 V" k: p# vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
* G0 s# N/ j# i( F/ Q+ h
if(trust-value > trade-trust-value)
: [/ u) A3 |# I$ ~[set trust-ok true]6 B( C; r9 f( O1 d1 i
end
% \" a$ z2 L, h3 n2 Q  E( p  H1 D4 {1 I3 G" w
to get-global-proportion# F' n* I7 F8 {0 r) }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
; j4 m' B& d( b- |$ v; q; M$ [[set global-proportion 0]& Y- X! @. F& @1 f
[let i 0# S: [, D0 h% k5 @  X* u
let sum-money 0, p* Q1 j+ A# s3 X$ {
while[ i < people]
. _  k8 \4 ~) {" R[# h" J7 K( l2 P1 Y. E) F1 L) \0 ]
if( length (item i8 B6 T/ A+ V* V5 X7 [' r
[trade-record-all] of customer) > 3 )

. H2 D4 o  {# z' h8 K[2 T( K2 K4 }6 }
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) ?$ J3 F+ n: n4 Y' T2 F
]+ t( z3 U/ F5 D0 D' ^3 ]4 g" h5 [
]/ k! S5 t4 K0 \
let j 0
: o4 c4 U# `; g  x% C2 z( B6 [let note 0
+ [' a3 h9 v1 |/ }while[ j < people]
# |5 h7 |! E( Q: d; o8 `$ F[8 l$ r3 [* X3 @
if( length (item i) _) y3 H! z9 s( B
[trade-record-all] of customer) > 3 )

% A* o& q6 n$ ]" _[( J# H% o. ]! Y; h& G" h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 k; V, j: I! H4 X8 p1 S+ V[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 s! Z- E4 X- p0 R$ b1 H
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- W/ h- W9 W5 h  D" ~, U1 x
]
' \5 h4 I. k+ v4 P" O  M5 o3 ^' m]/ r. D6 R; Q' _9 ]; K: C; \
set global-proportion note% o+ f2 e9 w( ]9 z( o
]7 s6 `' w) E- H/ H. ~$ ]
end" V( h& p9 J" o4 F" `" b
  |2 R2 x' E; ~+ W4 R
to do-trade
7 N; J& D9 _4 g;;
这个过程实际上是给双方作出评价的过程! n7 g2 A9 y( @; N3 O7 Q: k9 V
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
$ L5 ~- P, J+ |( z8 g0 K. v- V) q" Nset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
& }6 B& a) g: lset trade-record-current lput(timer) trade-record-current9 f; v, D$ @1 s( E/ @3 C
;;
评价时间8 R6 w, k) q% t/ f8 ~$ ^: t6 U4 P8 q
ask myself [, C" Q( ^1 N; `  `
update-local-reputation
$ }$ P6 b' F' t1 G1 \9 ^  xset trade-record-current lput([local-reputation] of myself) trade-record-current
  w6 u$ o: v! j7 O' q/ Z1 O. u" S]# Q" y% d1 ?5 {  O* u: r$ o
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) u4 ^& j2 B0 M;;
将此次交易的记录加入到trade-record-one) t5 z2 n$ l/ g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
( S9 p4 v! V/ b: P  Clet note (item 2 trade-record-current )
* z) o% L. F9 t# a) Jset trade-record-current7 ^# }2 H& m# c& X
(replace-item 2 trade-record-current (item 3 trade-record-current))
) y3 x9 b9 D7 R9 P  a! \
set trade-record-current* U: D: m' b0 ?! k* d9 C
(replace-item 3 trade-record-current note)
2 |/ s8 h# V. C" {% |6 y9 X8 s" U( _4 _3 e8 J2 b
3 L7 q+ O1 W& D+ ?" X7 i# P' n
ask customer [" ^- x4 `! a  k* {5 X" _7 E* |
update-local-reputation. a/ P1 z1 D9 _" v
set trade-record-current
. m* }: [  X/ P# T' S% w9 M. H(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 U5 }" x  B1 S/ x( n5 e
]
. M9 ?. l6 V5 [+ X! H
* f4 T+ z1 f" D5 Z6 D
1 A1 _- j1 ]% \$ M
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' N$ H4 v" p$ O+ O

( G2 w9 ]% z- @+ u( D1 mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 f) q1 `& u' D
;;
将此次交易的记录加入到customertrade-record-all0 u% c. v1 {6 d( r
end" Q, R0 N' F6 Y+ C: K
( j6 u, W# g; K$ `3 ]* P& R' P
to update-local-reputation; E' F6 m; ?( X* ~
set [trade-record-one-len] of myself length [trade-record-one] of myself
3 q: r) s. m" i& O5 x. S) ~
) Y$ J0 i2 h, }- p2 n0 K) o; U. \
" k8 {0 Q6 J4 r1 e;;if [trade-record-one-len] of myself > 3
% y# n+ S0 R1 |0 [, ^- C: h5 I
update-neighbor-total
4 D: R9 C5 Q4 D+ P- P: Z; Q;;
更新邻居节点的数目,在此进行5 f5 A& J0 F) ]0 V; M% j5 Q
let i 30 q2 P' f& R( b2 v( T0 g
let sum-time 0; v* ?2 U3 l. U8 |; S
while[i < [trade-record-one-len] of myself]
3 e7 T8 q  a+ y; R[
: @9 R  S+ P9 qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* |1 I- J) n2 M' D  Kset i9 W! X1 G: _/ O- V% k' Z
( i + 1)

" a& E9 O# [- R6 b: H) J]! z3 Z, m# x9 m! }9 _* }) H- i
let j 3% P* w; t1 x0 x! e
let sum-money 0: F7 |5 A' G* m' [3 a, Y0 W  O
while[j < [trade-record-one-len] of myself], g, ]$ q. L' P
[/ L/ T4 [  @! ]4 s9 {& N' L
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)
! b4 u0 g" U2 {  e$ w- Vset j
4 A+ `1 Y4 E  [. T0 l7 [7 e& `! O( j + 1)
2 f# `$ w8 s( x  D6 G6 p
]8 a6 ~) m: H7 I* ^9 i
let k 30 l. N9 I9 K% ^( C1 k
let power 0$ }6 h; Z" }  T1 I, g
let local 07 {) n4 X& c+ Y# x; X
while [k <[trade-record-one-len] of myself]
4 v4 p# F4 v' N# t[
" m1 z" l  w9 z  |8 hset 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) " L$ S5 h( m( T" c
set k (k + 1)% f& m8 S) o" R! u" U
]
3 A8 ~' c: R  g$ g: `set [local-reputation] of myself (local)( e* _/ k; \& U, @: Z' t+ u
end& H0 s6 _8 z! U4 _& s6 g. d4 ~
: B' u. J2 ]3 {  H6 ]1 j
to update-neighbor-total! k0 B& L; C# H  h" C
; Z8 e. V# c6 @5 G
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 |! g0 I0 W6 p& O( R& Z$ _! S$ t+ @  U

# F: X% b  z- {" U, h% {end
' }* |/ \3 o2 w% M; |, r" l6 Z7 H$ c2 c# a! N9 _4 B# n3 K
to update-credibility-ijl
+ ^2 _1 b5 [: X6 j& K! c1 g; \% X% q( ?8 w# u9 {, b
;;
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。
) X: L5 n1 o/ m, x9 [4 Y- d+ ?  V5 Qlet l 0
$ Q/ E; x1 }  H4 {3 K8 [0 F; ]while[ l < people ]; Y4 |# e  J1 N$ c
;;
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
" G6 Z/ u9 B' Y6 k% w! g% U[
- l& @, s  V1 J9 |; D9 H1 @7 Plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, v! p7 r1 J* x% F" Aif (trade-record-one-j-l-len > 3)& R+ g- d9 Y5 z2 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-one9 S2 v% K9 Q! B& s5 m: ?' j) p  C
let i 37 i: ~9 w- M) E+ @
let sum-time 06 R, X6 Y; p. c1 e6 _9 @, t
while[i < trade-record-one-len]" Z) `( @' B6 Z6 l) l3 h
[
& m0 Y1 O6 ^# G8 Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
  q* k. X5 \/ f: u5 V( c/ bset i
! P; a. C( u$ Q% K  f) \( i + 1)
6 }8 G- h9 |2 y& U& W
]
9 J4 s! f+ e6 b" o3 `, s  w; R1 @! tlet credibility-i-j-l 0
6 V* q. v  d: S! n# `1 o;;i
评价(jjl的评价)# w1 l& Z8 N/ v+ u
let j 3
" h  P$ A5 |# q$ Qlet k 47 b4 D4 @  D8 w( r5 g9 I
while[j < trade-record-one-len]/ Z, O+ D$ M! Y4 p: K
[" Y+ ?. D* r* f% P+ Y: k# M5 I
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- l/ w# t+ h& U6 R/ Z, 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)0 A) r/ L) E! n4 I
set j8 H, M6 |9 h' ~) q: a
( j + 1)
+ l5 S" R9 q+ r* h
]' Y) o- ?1 L- g( Q; `& Q/ w
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 ))9 T" V; S: e, g

( w1 \/ s1 b  h# l

. z, O% F/ M- j) L; \5 \4 H/ ?& c5 x& Jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))  B% a8 Z" e+ N. s
;;
及时更新il的评价质量的评价
# I" ]; C, q5 u& \! Vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 G2 {2 R" L1 m# S; J' L4 C# f+ m
set l (l + 1)
' h  r6 g+ n1 z- M- E3 w# k]; w- j& v" P1 o
end
/ C# p3 O' W% U+ v
) M0 N4 H( @& g( D* `' c0 P/ ito update-credibility-list" a1 |* M  q3 {( @" s' U
let i 0. y1 ~" @" o2 n, U! a; V9 `
while[i < people]
, P, w9 S2 G3 \& I$ s- F[/ U' e+ f% V5 K7 b+ [
let j 0
7 F9 J* k2 K1 {% p4 m3 `3 M, V; ^3 ilet note 0/ d9 c! E% ~4 b
let k 0/ ?2 L' f4 e% l9 \, f
;;
计作出过评价的邻居节点的数目
& X  {5 P* e  Y' [5 X+ O* Zwhile[j < people]
. k2 n& a# E, M" D[
, F4 }) b6 Z. g) ^7 W3 kif (item j( [credibility] of turtle (i + 1)) != -1)3 e  v+ n- c4 {/ M# M9 Z7 G: ]5 ~1 R
;;
判断是否给本turtle的评价质量做出过评价的节点
; F1 l" Q5 c( n6 ?" a* V, x0 o8 ?[set note (note + item j ([credibility]of turtle (i + 1))). h+ q$ w; T' d7 Z  l' {) M# C
;;*(exp (-(people - 2)))/(people - 2))]

/ _, o, i: r8 \$ {  ]  M, kset k (k + 1), M9 f, O5 M- A5 B5 t* t- ^
]
. x- z7 I( s& n" X: K  ^" I. Nset j (j + 1)
# D( G5 C0 @9 X( M; z]# l" P8 S' ?# x0 p
set note (note *(exp (- (1 / k)))/ k)0 Q; f% @) B8 A' p* Z: I
set credibility-list (replace-item i credibility-list note)7 E# ^3 t% L+ r7 J. V5 M
set i (i + 1)7 h# f# J/ Y8 O7 b
]8 a( y9 I. m: S# B& Q
end
7 |- A! R; V5 @, U$ M4 \
5 q" O& l: i4 a2 O0 jto update-global-reputation-list
1 _* K4 h6 l9 \% F) }4 m& L3 Mlet j 0
" ~8 z9 Q: j% B4 s8 l( Owhile[j < people], p) r% }/ f& ~7 e4 K# w7 e# b
[7 ^" P3 t# ~+ [
let new 0
+ _4 y4 Y( a4 \: b( P$ c6 T;;
暂存新的一个全局声誉3 N: _5 O0 e% j' K+ b; Y5 B
let i 0
9 }1 s& B( t& N7 ]) llet sum-money 0
: f8 U$ ^8 Y: mlet credibility-money 0
4 Z9 p$ ^! R: H' g. swhile [i < people]9 Y6 _4 l+ n7 H$ I: D
[+ j( R, z6 B' y( y* e5 d3 J0 m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( u5 t7 R* e2 F. a0 F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- t# F- I& n( e2 i# @& w7 k) p& ?0 n1 cset i (i + 1)9 s& p1 E0 n& }9 Z0 I
]4 f, j- A$ a; A( _  V
let k 0  P% w" I/ |% i
let new1 0
' h+ P: H. D' ~5 a1 Jwhile [k < people]0 d6 S( c: p1 ?. J- @
[
. Z& H6 d: J7 [) g4 _& dset 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)
- L+ @$ W3 ~9 U; X3 pset k (k + 1)
% D# k1 @# s) J6 f! }* _]
2 b' O8 c& E% Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 y' ]+ j& @) c
set global-reputation-list (replace-item j global-reputation-list new)
( ^9 A# B$ U7 l) ~! ^6 S' `set j (j + 1)
+ u2 g5 T8 c6 y/ G]/ H! C& V$ H6 e, X0 i& O
end- k& J% a4 z# U, ~5 q

3 e- y1 n# g% N5 U+ s: y9 ~* V/ a7 a
0 R. O, |- J7 m: L$ v* A' S/ `
to get-color
# `* L8 P( v" S( B
0 v* ]' |! T8 Lset color blue
# g. i2 {+ M. K8 Q
end2 c1 q2 g+ M& F, k2 K
. o, L8 ?, L. \3 T2 d2 u
to poll-class
) m/ g7 W; ]3 _, }; j+ Y9 ]: }$ fend
* M3 R8 [+ H2 D: U0 y/ H* F9 r( H/ {
to setup-plot19 G7 N* H( ~/ Z! [3 N
  J% m; j/ y1 s0 b6 S) Q: t! r* r) @
set-current-plot "Trends-of-Local-reputation"
3 {9 k; D; R# h5 g# s5 X2 e
6 {& ]4 x7 B" G" E5 _
set-plot-x-range 0 xmax
' S$ t$ k/ a2 C$ _- p; `
, d; @; j; ~6 z
set-plot-y-range 0.0 ymax
! `* v& e+ V: C
end
# E0 o" }' y$ C9 \( y
. e9 V/ A* {2 `1 F, t& M1 |* Ito setup-plot26 g% n1 K+ P, I$ n, G5 E& G

/ j  I/ J5 N6 U2 b  Z7 mset-current-plot "Trends-of-global-reputation"

5 V8 L  {/ u4 K! D7 Z) m
! E8 J' n$ e( d) L" Tset-plot-x-range 0 xmax
6 X, k' D3 {  D& i0 V

4 e1 b; s) y: o! P  Eset-plot-y-range 0.0 ymax

' O4 [% P' u/ Jend) p  e3 ?! z& s1 ~$ N

- m! t: A1 e; ?) N6 Ito setup-plot3: ^/ e2 K/ P8 y1 F

7 H4 c1 A& ]1 b# A3 L2 _) tset-current-plot "Trends-of-credibility"
5 F# G! Y4 m( j, O
: H% [# K) K) A" R) H$ L
set-plot-x-range 0 xmax
0 [' w  r% ~3 U' _9 }
3 P6 `$ v9 o3 d- {
set-plot-y-range 0.0 ymax

6 [! S( [6 p$ G' J0 pend/ j6 `- D& d* F& S

" i1 S2 k! n3 T# xto do-plots8 \+ D/ ?! r8 P( y3 e
set-current-plot "Trends-of-Local-reputation"
+ D  }( X/ {: K0 ^" fset-current-plot-pen "Honest service"
( i$ s9 {" f( K3 f; N- I0 Tend
8 z: }! Z+ B6 n4 X6 l: Z6 w( L$ d( h: c1 I0 G: {, [
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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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.  l/ D, I+ |- ?. \' s
% {  Q+ @; P9 c3 N$ p4 |' ?
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?
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