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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:
: r4 X5 V& g4 ?' G8 t7 A. |) y5 Eto do-business
. u2 C/ d/ s: R rt random 360' u0 R" O8 z- d; G0 j
fd 1# }% ]* |6 M3 z+ t" r
ifelse(other turtles-here != nobody)[$ e- G' f; C  z* O3 {6 H
   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.% A. J- k. \2 g  m: W$ S' r
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    , M' w, g& J! I2 O
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
; X; \3 E+ ?& n) ]" f+ C- o   set [trade-record-one-len] of self length [trade-record-one] of self
7 j8 J' r! ]: d+ [3 g6 }5 b   set trade-record-current( list (timer) (random money-upper-limit))1 U- d, \& A- F2 N) |
2 B6 }# S+ k1 Z
问题的提示如下:
% a6 k* {* m, F' _/ e- }' A5 {" T8 ?8 o
error while turtle 50 running OF in procedure DO-BUSINESS
8 q& F8 \8 I3 V7 j* Z! w  called by procedure GO. x( B% l) w$ ]0 P; ?& `
OF expected input to be a turtle agentset or turtle but got NOBODY instead.3 {* R0 D( m# o0 g
(halted running of go). T5 h8 V1 q, ]; W4 k3 f
% v$ F* A7 J3 X
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~~9 Q1 J. j; p3 S
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
. K/ i1 Y9 q5 C1 m- ]- O: mglobals[# J+ F0 N  y7 T8 ~& ?
xmax
: k) j6 S6 ]. y9 L) t  P: y- U" dymax2 b* w6 l  I. @9 j  W- _3 M
global-reputation-list% N5 _/ A, w% k

1 o6 l' L7 B" }( Y/ a, I7 D# V;;
每一个turtle的全局声誉都存在此LIST9 U1 Z2 s* i: s% \* Z) Q
credibility-list9 R6 B! c/ I: ?( S
;;
每一个turtle的评价可信度
, f2 a# R; m8 s" S0 Mhonest-service
4 `: L$ ~' M- wunhonest-service
1 \2 J; x/ u$ [/ l  @" H# Joscillation
0 r0 e, [- ~) \# N" k+ e) vrand-dynamic
, ]1 H2 a6 Z7 @1 r/ o]. A1 p$ L+ J$ ^# s, o
, o( n, e# _7 T, t; j: H5 D
turtles-own[
0 m3 y1 p& u% R3 I4 d- utrade-record-all: F& W  L' T$ j4 x; k0 g
;;a list of lists,
trade-record-one组成& X) I& B- `9 b9 R1 J; `4 L' u
trade-record-one
- Y3 y% m% g: U6 F7 b1 V/ {: A;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录+ I- w/ o) T0 P) y% A! B  K. S- y

: g2 C/ n- g3 b9 F;;[
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]]
2 U' z' }2 N* r9 Z: O4 Etrade-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]2 z" B4 t- |! j1 R
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
( V; G6 O4 Q/ z3 z/ C; yneighbor-total
  E' z( F2 \/ P, I. Z;;
记录该turtle的邻居节点的数目" U  g3 Y; U  r8 H8 q& |0 E: U2 B
trade-time
) B$ X: p# S  D. e% [6 E;;
当前发生交易的turtle的交易时间4 k2 n; e8 C8 s- e4 i
appraise-give' a0 Z. k: c/ Z) r/ Z% @/ h
;;
当前发生交易时给出的评价& C5 Q/ L" B% Y: t. M& d3 {7 ^4 K
appraise-receive
$ b+ v7 f, D6 H9 |7 ^;;
当前发生交易时收到的评价, R9 L9 P9 o) S3 h2 ~' y
appraise-time! Y, q2 @( }2 x6 W/ ?
;;
当前发生交易时的评价时间$ q& S1 e+ _, n! |
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' L8 m; ^  r* L
trade-times-total
* Q" q9 L; m9 N% |/ S;;
与当前turtle的交易总次数  ~' A  c7 v: D+ l( P) W: n
trade-money-total
. A; B- @5 y! z# S( a7 L; P  n7 F  d;;
与当前turtle的交易总金额4 h/ P- h& [7 O5 z4 Z$ D* A) c3 [4 R. D% K' s
local-reputation) w% D- o* ]0 \; q5 L7 h4 k! r7 w
global-reputation% m& a' F) W6 }, {2 R# o
credibility
" {4 H# o* t7 ]( ?( P;;
评价可信度,每次交易后都需要更新
9 `0 i8 M4 q; U# Acredibility-all
, p5 t0 _+ ?" J, B5 F8 |( N9 |;;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
. j9 w3 @2 R% ?, c: G! h- v; ?* ?
;;turtle
的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5& U' D! H8 l- c9 X, M' o& n& K. W
credibility-one
$ b  ?5 f5 M9 e; I. v$ U;;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+ I" X$ f% p! j+ J  {
global-proportion& r9 `" K+ U$ Y5 N2 S4 c
customer
4 O- @& Q# k5 Rcustomer-no
0 _8 T4 y) r. [+ N# w# n+ ?8 [* o9 I7 A3 Wtrust-ok5 P" Y6 x$ u; @+ J; f8 a2 A
trade-record-one-len;;trade-record-one的长度
+ A$ W1 m; D5 m  E; B* s0 b5 }]
( S- w5 I/ H, s4 e' n, [& w" x% I- c
;;setup procedure
! I* r9 W. a% Z$ @) X- c* P$ n+ {/ F6 R. G1 [; J* p& J7 a& [. J; T% Z  f
to setup, Q' \: U* ]% ?3 s3 }
) a& |3 @$ N  K2 w1 z
ca

$ ?$ h* \' W0 P% r
6 I$ I+ ~: p# f7 [initialize-settings

* R0 Y9 w# a) m3 n! O
- X2 w! w& l* m! W  Pcrt people [setup-turtles]

) i. c5 |+ d% D3 O' |; X$ ~, N, L
reset-timer
. f5 _8 d# }, n$ q! w8 R+ p
! f! m! u, }) O8 P
poll-class
4 b! c" r' X1 S. `) Q* V
% |* \8 ]5 X1 K8 a  m: y, F! L9 W
setup-plots
' Y9 ]% P) s+ J7 k
6 q, ]0 v; X+ {7 Q
do-plots
! }, c- h' o% V/ e1 o
end
% ^7 v' l! B( z. N; O- B
3 |) }$ B) o# w# n9 }2 Z. dto initialize-settings+ Q" j( b) U/ _' z- q; Q

3 F0 c9 e$ h+ H% i' \9 ]4 _. Gset global-reputation-list []
$ l( `; k6 L! ^. {; \7 ~4 H
2 |, G- {5 l( ]: n: O+ O/ C
set credibility-list n-values people [0.5]

# @4 Y6 W/ t% ?& k0 I& N7 }' o5 v  r3 c! m5 M7 e( `
set honest-service 0
/ }; ]8 [9 K3 J0 l: c
+ _# ?- @) A0 o" v; @0 L
set unhonest-service 0

0 Q2 ^) }0 ?0 y- J: N( U9 ^. J2 J. {
set oscillation 0
2 ^6 {' A0 z+ [4 ?
+ b3 [9 c5 T; Y0 z0 n3 u
set rand-dynamic 0

3 ], k$ }6 x! P) Qend
% n* x! V8 P9 J% g- u
$ s" V4 |9 b$ u& ~  vto setup-turtles , ?0 O+ g) t' K( D5 I# g
set shape "person"
/ J1 f; B1 M6 Q' C7 L1 h1 qsetxy random-xcor random-ycor
3 e$ b6 ]4 {. m+ g/ ^set trade-record-one []% G, g& H' X; ]( u8 ~- o  ?
9 I4 R; y' W; g6 k5 y
set trade-record-all n-values people [(list (? + 1) 0 0)] + z; U: J. Q6 n' u/ E# L- C

7 b* v! z3 k# x. \set trade-record-current []; u& O7 x5 }+ Y# I
set credibility-receive []
" t2 p7 Q! f9 s# t2 V8 `% j, uset local-reputation 0.5. J* @) y' w. B( e2 e" }/ S5 B
set neighbor-total 0
1 c& o% k" ?3 G) I3 |! x. Aset trade-times-total 0
2 Q: \& O, x7 _0 G$ B+ s$ {set trade-money-total 0
1 _3 q" e$ Q# M/ Tset customer nobody
0 m# K: t' b) E3 {set credibility-all n-values people [creat-credibility]
/ Y  K6 i5 p% v- }: O  Vset credibility n-values people [-1]
) D3 K! ?7 Y& vget-color
' q! D% g. e! T
7 M1 ?. L8 |4 u) h- m  [
end
) }3 [) h; K; N% H+ N) t  K( L/ a' O, ^& r
to-report creat-credibility+ t+ @+ Q& T# e3 S9 o0 u
report n-values people [0.5]$ X% b$ W1 X& n- z/ l$ C: H
end
6 w6 B, ?. `! n% T% z5 l& |. Y& I$ b( a( V8 k# z
to setup-plots" S, G7 n" C. Z" B
( ^$ @: r: v. p( P/ k9 J1 P
set xmax 30
. g# u/ W% ~) Y

' J6 K9 d4 Z" s' dset ymax 1.0
( {+ g0 e' k* C7 @4 K

5 r( T0 s/ H! o6 @clear-all-plots

* \$ r. R# b2 g$ R9 S7 o* X( m4 H/ [. y  Q# H
setup-plot1
3 T2 N- c* |0 _
! x" ~! O5 o7 F8 ]- b( H3 y
setup-plot2

8 @. s( R- [; Q. Z. m1 @% H( P0 m. F& X5 M( z( S* ~
setup-plot3

4 j! @! ^/ j2 q: B' Z& g( D7 Cend0 V' F9 [0 `8 D7 s
: Q7 q' }1 k# k, e' Q5 f: Q
;;run time procedures! }6 e( c& ]1 I( @

/ H" V# Y' M9 \$ M1 {8 pto go
' J2 m' Q2 y& N- j( @" b& j  ^0 {& i6 T! y9 Q1 l* z0 t0 U) l
ask turtles [do-business]

" z* u6 Y- ]' w- a. Cend( Y; a& ]: _0 @$ |1 }6 b: H

8 L. P) ~+ T/ @1 k- \: d5 cto do-business   a: F8 |4 q* ^& ^& w- J( s

: i* ^$ |+ N- h. ~5 v5 r+ Q( R/ o, H7 q$ O) M2 C8 ^' m
rt random 360

) T( r, C1 g% U$ w; x6 x( I" l/ d/ Y) [& a
fd 1
+ M+ e6 h# {. k6 D$ l, l

7 _9 P  [/ |: M% C* sifelse(other turtles-here != nobody)[

" P: G- M1 s6 t6 U$ G: }6 H- X! K% x& L- f. T
set customer one-of other turtles-here

+ ]- w" k) \0 m, k, W2 C. x* d% d4 m
# M2 x8 g. U% s5 D' N1 X) t0 a/ t;; set [customer] of customer myself
% t+ f1 v3 I& C0 Z5 {4 c. t, E

8 m$ X7 {8 e0 V, Z8 P" f2 h# b  Q2 `set [trade-record-one] of self item (([who] of customer) - 1)
$ }7 M% [! L" ~/ w3 v[trade-record-all]of self
0 W( s6 F# @4 I8 W* Z, B- m;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' N: V* |9 ~9 N. @/ {

5 l% T! {7 U+ Y' s) B/ x% q# @set [trade-record-one] of customer item (([who] of self) - 1)  j0 m8 x3 J, n3 O" S' k1 F
[trade-record-all]of customer

5 D) c6 U! m! z5 L
& {' H. @/ I" L( zset [trade-record-one-len] of self length [trade-record-one] of self
: h( E5 k+ e2 L' Q3 |# t1 q
% M; `* [9 m8 B! U5 W* z9 h
set trade-record-current( list (timer) (random money-upper-limit))
* ^7 F$ Q5 R& t
: F) f* u4 [5 k
ask self [do-trust]$ p5 [7 q4 z! L
;;
先求ij的信任度, u) \! A& d+ i3 A
  d5 ]* c* N. O% {
if ([trust-ok] of self)( ~: m3 @. G/ t( d
;;
根据ij的信任度来决定是否与j进行交易[
" P/ G2 [- j/ b% I9 ]9 Vask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself- z! d( G4 M5 S6 K$ `6 w* W$ o
3 u$ g; m  [3 }' H- p8 w
[
& N/ w8 Y" d9 |; Y$ O4 V

2 M2 e* @7 M4 z! ~1 X! W! U0 s; Mdo-trade
% ~+ `+ G4 g' l6 X" Y; P4 ]8 o! R

0 z3 B& w  |/ U: L6 a  @# Tupdate-credibility-ijl
5 u% R3 i" J' I+ s' H

6 l7 p& B, d- C; Z( _2 |* Cupdate-credibility-list
8 d7 f1 h1 H. x% p9 n

' k; Z% P% t7 w/ F
" k8 J) F0 D1 L: |3 Cupdate-global-reputation-list

) J* M( W5 v! M( M
1 `9 m9 u/ k# T& h9 q  ]7 L8 g* [4 zpoll-class
2 z2 z3 s+ {# W; N/ K) \
0 Q3 }# _7 _7 [( u
get-color

% \2 s/ e) F. b9 W! a4 ?4 Z( o: p' n( P. J
]]  y3 o; g# x- O& j6 g5 b; o
7 |' M9 C8 `. W# A7 W
;;
如果所得的信任度满足条件,则进行交易
9 p- A# e1 M2 T  r2 S5 t
# Y/ U3 x. v4 ?[

1 [6 f& ]2 r$ }; y, R
" I0 u, Z; c- Crt random 360
  V. r* [+ i% \+ m# F! t2 h

9 O1 D: |; J+ n! {  Rfd 1
1 v9 i$ q2 E/ s8 V
6 D. ~9 d4 ^$ A5 _) A
]

! N8 `, B1 I! v( ~4 r4 G* U
, [7 q/ g$ k8 Z4 q& m: _) u: Wend

" H) W, L" N- T& }% q$ N9 F% O
$ L! ~. M% N+ gto do-trust
  i; {- b  I0 B" W; jset trust-ok False
& X7 q. p/ i( d6 I3 Y
5 G1 b/ z0 |+ t& \- a6 Z
+ p% v) F4 M+ I# {9 t3 ~
let max-trade-times 0
" R9 J% K7 s" P* S  Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. ^1 t; u& d7 O1 Ilet max-trade-money 0$ B+ ^3 p0 C) y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 N) v+ @- C7 a7 M5 h+ T6 ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ Z) l; m7 Q5 x5 q" C1 p
7 |5 [, J6 Z) w

3 P) V( z8 ]4 nget-global-proportion
5 o9 B1 o! E# b- R/ H6 o( c% ]7 flet trust-value
, o( y4 z+ a, s/ P' G3 G9 Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

3 c% W0 P4 P+ Y: c0 k4 W+ \  `if(trust-value > trade-trust-value)
, u' d2 u! Z- l: k( `% R& B6 I3 A[set trust-ok true]) f) j4 _# Z+ \5 j( ~
end
! t* Z1 H$ x: [' J+ m2 H' n/ R; y) O9 Q$ X" X8 v, O. g
to get-global-proportion
* s! L2 l. H1 U/ y# I% fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& H  K; d6 b# w) K, w[set global-proportion 0]
% E+ |0 ?. G$ j6 J* k" [7 o[let i 0
' M9 T$ C7 y$ B/ zlet sum-money 06 H+ ^* a9 a0 f$ i+ Z% N$ s" B
while[ i < people]
$ j! J. Q( ]8 Y; s  M[4 d( l3 S  u  Q: q/ q5 f/ v5 V
if( length (item i
% A" O7 c' P  F5 G7 T[trade-record-all] of customer) > 3 )

0 }$ Q; z+ ]" L' I[
& G3 i  Q3 f# A8 i: _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))  _- `; T8 @& v. }
]- j% L$ U8 [2 A" @8 `8 C
]0 R5 w' p* Q; f3 X$ d. n; l
let j 0
7 K8 R, v9 {4 Q% R) h2 Z( `let note 0
( @) Q2 ^$ v; r5 H1 Z- v9 x3 p! vwhile[ j < people]  W# P! t2 y' H8 ]6 b  u6 s
[
# b. P4 z5 v5 mif( length (item i
+ [( H5 g: U( a* u. C) A! O[trade-record-all] of customer) > 3 )
/ M. W, H7 M7 w! F$ l8 Z& B7 d
[3 U" n% v7 I4 w( [1 S, t" m
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ q: H# D* k9 N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 ], y- B5 |: E9 Q  w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ H5 ?/ M3 B! K]
8 h% S& p3 p2 {2 p( M]' I/ x0 e- L: j9 ^/ g0 d: ~7 v- t8 k
set global-proportion note
3 x, L( k0 R. T. X]
7 d! f% X2 \; y$ o" F8 Xend
4 F  ]( V! D- p8 p6 ?3 h& q+ v; b' u1 o; j
to do-trade3 T. z. ]7 C5 [5 D; j. l
;;
这个过程实际上是给双方作出评价的过程8 b# y* X& d; O# c4 H* t) ~
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
# c6 o; Q; Q, {set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价* U( D) i6 X& B& i3 v9 x( v
set trade-record-current lput(timer) trade-record-current4 Q2 [# B) J* F  M0 i4 [
;;
评价时间
' a. _/ i( J0 E7 t6 W$ Zask myself [4 w. U3 `- U5 e; ~
update-local-reputation
$ U8 j/ O0 ?3 Yset trade-record-current lput([local-reputation] of myself) trade-record-current
0 |! ^2 A4 j9 ?# M' J' e]
% M8 U% {2 q$ [) J: iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 A/ @) u. u; J5 R6 ?
;;
将此次交易的记录加入到trade-record-one
" p4 |( h# F$ T, Y' _set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ D2 h* E5 n- R* f% n3 n
let note (item 2 trade-record-current )
4 S; n1 m/ {( Z/ Q  W/ g; @7 J2 Rset trade-record-current
: U" I5 S+ D; o/ N& o(replace-item 2 trade-record-current (item 3 trade-record-current))
1 V0 f6 T- A2 {7 N
set trade-record-current
* V2 m( i9 p7 Y$ w8 t/ l0 h(replace-item 3 trade-record-current note)
- S+ d0 D7 }( p* `) C0 ~/ B; S- X* `7 D( }: K

5 B8 R# W7 [1 S$ m" z6 w* Gask customer [
. D, S; N7 K: U+ Xupdate-local-reputation5 G- ]$ L3 P- v, z4 \3 B
set trade-record-current# F  H$ X  X; m$ x8 }0 H( l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 ^+ t2 j3 z2 Z
]
8 S8 Q- K+ M/ x4 x# x* y/ U7 K9 Y( v3 Z; [6 F! x
9 B6 q5 M% _& D3 N, |+ P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; D6 {/ ?1 p9 _7 b! a/ H' Q( b
6 X# U$ Y5 U" F% D1 A" C6 R
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
  E" Z$ _4 t( |! s5 F- `' n8 Q5 };;
将此次交易的记录加入到customertrade-record-all
! r8 D' S" C6 Zend6 F" n8 N" `0 m8 Z; Z

- p+ g5 ^6 L4 K( ^4 e, sto update-local-reputation
9 R3 z" k* t3 [2 g0 g1 B* y. tset [trade-record-one-len] of myself length [trade-record-one] of myself
0 e9 `( ?3 j# @+ C% w2 C4 N" [( T, r+ B' F0 @9 G

1 z" [, d+ M! L1 G7 {  q: k8 e  ^;;if [trade-record-one-len] of myself > 3

; J& d& i5 l5 ]8 q: Qupdate-neighbor-total, g0 \( U; H3 M9 E
;;
更新邻居节点的数目,在此进行% o5 c# E( M1 _& P
let i 3
" S/ j2 \  w& ?# d' k) T: wlet sum-time 0
( _- s5 a, s2 m' ^. Bwhile[i < [trade-record-one-len] of myself]
% D  M: b9 [, ~) y[+ G1 h8 m' q# h& h  Y8 i
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' S+ b; B& i  e1 C
set i" T7 z2 }- o& H8 Q+ O% p
( i + 1)
  r9 d- \8 i6 i) V! k1 C
]/ ^! K4 B( k% T" X0 a' h
let j 3
* f! `6 X6 J, h  P5 Mlet sum-money 0
% I3 r7 i5 N. S% g% T: I* U$ twhile[j < [trade-record-one-len] of myself]
7 G& \2 f( }4 \$ L+ ^; O  E: o. P[
1 h- e: K) Z( T6 B0 A! iset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
4 }( u9 m0 g! a$ ^set j# _" [" K1 C% m2 d/ t
( j + 1)
( M6 @9 X& j* b+ O) ?2 |2 t9 I
]3 e  Z1 ^1 \" u) Q) O- N
let k 3
: F* h, b+ W/ ?% _6 plet power 06 S/ b. h' `- y4 q
let local 0
/ v8 w# N: K* A8 q7 twhile [k <[trade-record-one-len] of myself]
* f2 Q2 I1 [5 }* F8 y[
5 b# c5 b, t* a/ a! I$ Eset 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)
9 a, o  ^% |- T9 U" g9 Sset k (k + 1)! o6 B. ]) B# D% p
]0 j$ i8 \6 q% J, D6 v
set [local-reputation] of myself (local)
9 R) s: u1 f# g5 L: z9 ]- qend
1 }6 W& q+ y$ B( d2 E8 ?$ @( q0 r4 \0 P) r
to update-neighbor-total
. q3 b5 _1 T& ?: Y" ~" I  a- R4 K7 A' }, T8 d/ L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 d/ k0 O% H- i9 h4 R8 d, d6 `
( e- W0 M& l- a* V" x/ b4 E6 d

% Q( r2 C- X/ r3 t- D( H2 zend6 A7 j, S$ X( v  ~; t# W0 {* f

' Z5 h6 X) S' z' }2 ]+ d, rto update-credibility-ijl * l; h- @& f$ `0 X# q$ Q3 Z$ k
$ B! p( y% ]% t
;;
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。) Z& o2 j: @0 q/ }7 D1 `
let l 0
* K1 }0 F' p% h' C- O+ Nwhile[ l < people ]
" r& L' u2 J& b/ n! N! S. @;;
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9 Y1 \+ J: l/ P; c8 F
[+ u* M  Y4 W& \& [+ G. l( y! Y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ o( g& V: }; n. xif (trade-record-one-j-l-len > 3)
1 v: b& i' F5 b6 D9 e; o[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& a  ^( O% I# @7 E/ \
let i 3% t. l. r+ `( K5 k. s6 C# q2 k
let sum-time 09 c" v5 y0 q! z3 K, ?# g
while[i < trade-record-one-len]! z$ R3 A( e1 O4 E- l$ `5 A
[
  o  g$ I# ^3 R5 Iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 K, Y! S! e: f, H4 @1 q
set i* P4 e) l/ P0 m4 e0 i
( i + 1)

1 ?2 ^/ z% _: ~/ B) d]
/ d  ?/ Z& K; T: F4 g9 Plet credibility-i-j-l 0
' K. t2 W5 V3 t' E( }" N  Q;;i
评价(jjl的评价)8 ~( C# _$ |. G9 I! V
let j 3
3 X2 c& T3 D6 I  [' r, n% c" y" zlet k 48 _& ~* G& Y- l- \( R3 s3 `- a# |' V( ?
while[j < trade-record-one-len]2 q4 ^% _6 x* P7 a9 x  ~" A/ Z5 H
[
3 h' t& d7 L. Q/ }0 swhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在ik次给l评价的这一时刻,l相对于j的局部声誉
% s9 D$ G$ t  N7 K. c( s4 ]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)
% P) L5 p2 h8 ^set j
5 a5 h  \2 r7 G: v+ n9 e* S( j + 1)

/ ]8 _/ _6 J6 E* k2 o0 ]]
- {4 f: G) l/ K: ^- f* Nset [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 ))
) P3 z) Y4 }9 }! r. G; N! q4 W0 M
5 U5 ^0 D2 `& ]( I
! J- P- z% N2 q
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 C. f# O* }4 L4 f4 P;;
及时更新il的评价质量的评价
1 T, Q5 u8 \# W8 u$ {set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# O& b7 K! T+ b% Z/ h& Hset l (l + 1)7 ^( K2 g; L  c( C% D$ d3 A
]
* q( t/ o; W6 G( V; t* W, B  qend1 L5 O1 O+ g6 f# A8 R
/ i1 m' B2 `4 H6 {( C1 x% w, l
to update-credibility-list
! H3 K$ {3 Y! s1 D- q& nlet i 0
) {( N7 T  P* ^6 g. V% gwhile[i < people]
6 t4 O( H# `7 b! `4 F' n4 v, P[
2 |6 ~# D) ?* \" Y/ `& e$ ulet j 0
9 j' m% I# R- t# @$ e$ o6 p  w- ylet note 0
0 q3 t+ {0 I6 R- Tlet k 0( }# j7 f" J0 B8 @3 @! `* a
;;
计作出过评价的邻居节点的数目
5 v0 o8 t0 s/ C% }% \% |3 kwhile[j < people]4 J& i# s% E' b% a
[
% h1 O  a: O) nif (item j( [credibility] of turtle (i + 1)) != -1)
! Y& Q& w4 ^* M  ?;;
判断是否给本turtle的评价质量做出过评价的节点
3 q( `' s$ z4 ]/ @' L[set note (note + item j ([credibility]of turtle (i + 1)))9 O$ v! q+ X8 z$ l5 R5 j# [
;;*(exp (-(people - 2)))/(people - 2))]
5 ~. h7 E* y$ W* |3 E- @" y
set k (k + 1)% a+ w! f' C! L% Y0 O! s
]
' D) g: l8 h' {set j (j + 1)
* A$ S1 i% ?8 K5 L7 c]
* S& i$ j  s6 u9 b/ Sset note (note *(exp (- (1 / k)))/ k)
3 k6 X% b! O3 \& s* ^7 uset credibility-list (replace-item i credibility-list note)
8 q" p. E2 q8 L4 F  h2 Wset i (i + 1)4 }* w0 e( n! T2 i3 q
]* [: I9 [4 j+ R! c7 J
end, j5 l2 k7 `0 [0 ~6 M  g  \4 [
; @; A" b3 S% a9 n) I$ O, s
to update-global-reputation-list
( a$ Y; P! t; n+ Q1 U! [let j 0$ x- i* u" j. b  D
while[j < people]
1 Y( Z! ?$ N, {* G5 W0 V[
, c- c* N% y& j' }: E: b8 c/ K* clet new 0. m2 f5 c7 u% B4 N2 D* |
;;
暂存新的一个全局声誉
' Y2 u# i$ B9 r( J7 ]* ~4 Ylet i 0
4 k( E* J  ?2 v4 m! @2 _let sum-money 0
# Q7 m8 U7 `) x. llet credibility-money 0  x7 ~0 y" u* I4 G* \% A4 g8 Y& E
while [i < people]# H6 `$ Y2 T9 F- B: \  p% |2 N
[
0 M! \- c: X2 [% ]  Q5 m/ Zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 T- n( v. J: Aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
1 Z: s% r2 ]# g+ Xset i (i + 1)& k( U. e8 S( _" o
]* b9 _' n3 K$ Z! E
let k 0
# H+ w2 ~- X( Z: l3 Elet new1 0
4 {6 M! U8 s0 J0 P" E0 Vwhile [k < people]
5 P6 t* c5 ^: R5 P9 S3 y[! B* S/ z- u2 k& B1 P, L
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)9 z% D' J* f  l( c8 d' c) \
set k (k + 1)
# _$ n& s0 U4 ]9 _6 t]0 F  Q, ?1 o# R" S# x
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) r' H0 X; |6 S( wset global-reputation-list (replace-item j global-reputation-list new). U7 t) Y: i. d/ r, s# [. M
set j (j + 1): O! w$ |& T- g* X
], X* L3 P0 G+ Y# f( z
end/ }9 K6 p* V- B
# G9 V, c2 C/ Z$ |9 X
9 W& J# @8 q: r9 |- U

9 _% L% s" X6 K7 {/ Jto get-color$ h+ E6 w* w5 e6 J. i* c* I. a  Y

8 G# s7 {, P: N. xset color blue
0 S6 G( @7 i4 N! o6 N- i1 x* Y
end' v0 Z$ C. g* ~  i: V" E* E5 r8 B2 W
+ H7 y4 j5 ~; j+ s
to poll-class
/ `" N8 D) U1 t8 P( x0 s, O# n( Fend2 N1 c" h' k. S7 T! T$ X

% I2 w6 \- i1 o( o" q8 k4 fto setup-plot10 j6 v2 U, r' a, v
) q( q  ~( O+ |5 h2 u4 _+ T$ H
set-current-plot "Trends-of-Local-reputation"

0 U; G; r) x9 |" a+ J1 B3 @9 z: H3 [2 y2 B
set-plot-x-range 0 xmax
1 G- P- P8 @9 F# Z
; e3 g* G% _& Z+ o% j  p
set-plot-y-range 0.0 ymax

3 W% Y  N  E2 \) K, yend. _( r1 ~" P; h& p7 c4 B) n
% M  B; [+ A" N
to setup-plot2, s" u6 v6 t. _! A  }9 H

2 P: ~5 @1 l  B# S5 [2 ^set-current-plot "Trends-of-global-reputation"

$ d+ X. z( a+ C, V' n% D* V4 U+ z4 q. n/ g. U' M
set-plot-x-range 0 xmax
' k8 G- x0 U2 L, l

7 r( h5 s& Q# a9 o6 I9 z! D; T& }set-plot-y-range 0.0 ymax

% ~4 [( r5 z' |/ R" Q$ @+ F- Gend) D  d" I. T; w4 S7 f& D& Q, V6 l

6 P' z$ G% r2 U3 K( q% W  Xto setup-plot3
* B; b$ A" O- q; e3 i
- w' u- x3 {8 u$ J# I5 f" eset-current-plot "Trends-of-credibility"
+ m( o1 T3 ~3 S7 {$ H6 ?
; B3 \  s: E! K' z
set-plot-x-range 0 xmax
9 u, }+ }- R' ]) p& A* D% a

) s3 J' c0 v9 s+ p# E9 qset-plot-y-range 0.0 ymax

/ F# y6 c2 @/ b2 ]! w/ M& c( G3 Rend
# f4 s! C& s1 g$ V- ?, ~( t! x7 ^+ ^; B# N1 P- J! K, e2 e4 _
to do-plots% }% t2 Z" |$ }* L# R# x" P0 {. R
set-current-plot "Trends-of-Local-reputation"7 Y5 {. {* ?! ]& q- O, E* i/ M
set-current-plot-pen "Honest service": F0 Z0 X, h; [5 p1 m5 e3 D
end, n2 d. Z4 ^- z

$ X) W: x; m0 k: Z* \3 q! s4 n0 m5 q[ 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.% P4 H: @+ {8 I
: Q' e& J" N4 g9 e8 u- ?- ]
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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