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楼主 |
发表于 2008-3-18 13:10:54
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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
+ e4 J; {4 |, a+ t, c+ \7 o* Z2 d1 _globals[
5 D# S5 c( ~. Exmax
) X3 S# a i: rymax& u) c, b+ \' C0 ]# ^
global-reputation-list9 G) m3 x3 V; @7 h* W) G5 A
3 _' Y( t3 q5 [6 U9 {- Y _ b y
;;每一个turtle的全局声誉都存在此LIST中) q" _. R1 q G
credibility-list" }3 E: P- v+ {/ W6 ~
;;每一个turtle的评价可信度: k& j; B0 `& w6 G* u2 V
honest-service
: o) o3 z5 ^/ H$ {$ N) O7 ?" a I7 lunhonest-service
( ~+ Q, f f* L) q8 e% B% voscillation% A1 ?8 K1 o0 L
rand-dynamic& s6 H* |/ y v5 r% w A2 s
]
' C4 p* C8 S0 p* r4 ^3 f7 k* h- V' {! Z4 ]& Y3 |. i4 a
turtles-own[
' J8 ]( R( H' \ L4 d) {( htrade-record-all
3 Q- }% w: e- q. I;;a list of lists,由trade-record-one组成
/ r9 k/ H8 v, L6 K7 D9 u$ Jtrade-record-one, }# d* n# W5 B* }2 B, l8 C
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; ~8 G; r6 \1 B4 ]
1 \* S/ s) l! }2 a9 M9 a$ n% Z
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]5 N* g5 z+ J; W+ b
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]: h. I- C. |3 A' 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list9 ~2 {. ?$ w- @ b
neighbor-total
5 c) p% F- s) Y6 {7 j. T- @3 `+ [;;记录该turtle的邻居节点的数目, a5 _/ ~& q# q# u, p" [
trade-time
7 ]) k) I0 V7 g/ a0 p4 w* f;;当前发生交易的turtle的交易时间- N' q7 J2 T) q: c
appraise-give5 q& L; N8 q3 M" y3 R; H" Z0 U
;;当前发生交易时给出的评价' o! Q3 F N3 Y# E% b
appraise-receive
7 P6 h6 Z; T# L. z; J! v& P;;当前发生交易时收到的评价
" X- ?# F1 c4 s! d gappraise-time6 h$ }# ?) [1 `( k: {
;;当前发生交易时的评价时间
3 v' R; E4 O: @3 l* ]/ ?. ]local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 l: u/ B# A3 L! c5 M! g; o, }! Atrade-times-total' m, r6 p/ f" s. S
;;与当前turtle的交易总次数
, ?# W+ `! [. [( L) etrade-money-total7 O2 `6 o' p6 h6 W
;;与当前turtle的交易总金额
/ u( w6 \# i) j( K- ?local-reputation
- F( X/ g) b: c% a8 Q# jglobal-reputation
# {' L' D* r. Zcredibility
# s2 @. R( ~' _( H( }+ a- g0 j;;评价可信度,每次交易后都需要更新
6 J2 Y, ?' x @% Ocredibility-all6 x1 r9 X4 }! m0 x5 i
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
, p( W7 i4 b b) x9 Z
2 e7 O$ C8 y7 n: \) u- W;;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0.57 q7 ] C! h3 I/ ~+ z/ r2 n5 B- \* V
credibility-one
5 S9 g8 E" l. @; d;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
- C n' ]/ Y. v7 f7 p; F: Jglobal-proportion
: A' A/ U5 t& L0 P8 Y8 ycustomer
a6 L+ H& G# @5 F& Jcustomer-no! j& s' ^4 B3 }; `/ ]. g
trust-ok% m0 E N- V8 C& l- \% I7 q
trade-record-one-len;;trade-record-one的长度
( g# n* L" h, M J+ i. I]( i7 c W! {$ X: ^
0 s! k( W8 M3 v5 y0 d! G& e. b" l! Y;;setup procedure
% a6 g. r' ~8 B: k2 f) x3 E7 P8 o# t/ }) m8 j Z, f; n- R4 j5 V1 K
to setup! c. O- {6 c4 x2 X
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ca& L l- l' [& @& x! z; C) G
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initialize-settings
; H4 @* u6 i" ^- M/ t
+ @* j0 ~: s9 l% N2 ycrt people [setup-turtles]
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reset-timer" F; A4 X; O3 H2 q" Q
. u- v* v0 [% x" b" Qpoll-class9 G U; y8 I, u1 _/ P
; n F, c* X+ ~9 Isetup-plots
4 N; n# L% R$ }+ v0 l. p( t
' y6 y% U0 j" f% B9 ]- }# u; z+ y0 }do-plots3 {9 c3 m* K; Y& [! o9 b. s
end- C& P; ^+ R; k+ A' T
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to initialize-settings0 `& i7 [* l) b7 S' M8 j3 F9 o
/ x7 }4 F) P- |. P. v
set global-reputation-list []
1 i* g J1 |0 m0 [; D+ v% ]1 d! f6 u' q) a7 n& M
set credibility-list n-values people [0.5] v3 V- a8 Z; V6 E4 }3 J
! Q# @7 D; H) h
set honest-service 0, @3 `! n6 T: ^4 m) k
3 {9 o9 A, T, A4 \set unhonest-service 03 Q8 B1 w, N9 F8 d6 F
+ \/ |; e! |) U+ g% G& Z6 W! b( ?8 Y. R
set oscillation 08 g- _# y& k/ R8 u; D7 O) z5 J
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set rand-dynamic 0 x$ W( @2 [4 H* B% {+ }% n+ x
end( j2 S* e; B( ~( u+ n
4 P$ e8 k( _2 _4 U }
to setup-turtles
$ l2 }* v/ @4 u! |# H s. hset shape "person"
% X/ j& N+ c0 Z" u& U6 c Osetxy random-xcor random-ycor# I( H+ n' M3 N
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []2 Y, p; [. u3 O$ K% h0 {) }
set credibility-receive [] n# w; j0 l7 [7 q; ]1 h: [
set local-reputation 0.51 H# o" L' d# v3 b# `
set neighbor-total 09 t. z6 d' h4 Y6 {* @3 y
set trade-times-total 0
# h( W( h5 I Hset trade-money-total 0
$ P* b4 [& |$ Sset customer nobody
$ u% n1 J- D; t+ ^* c( {set credibility-all n-values people [creat-credibility]
: Z: ?: ~& e, q3 y5 }set credibility n-values people [-1]* H& s" D* H9 f" R
get-color
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* O* D- W7 X+ x" m. `end5 d8 t9 M" E3 Y/ ?
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to-report creat-credibility
; ?& I0 @1 W ^: F% a5 sreport n-values people [0.5]9 O8 o5 P. R) D+ B) t
end
$ O# o4 g- W( y: o8 f5 g: O
( I' [# L+ Z; r8 m! fto setup-plots7 j4 z3 w3 O# Z; O
# j& {2 ?' B" _, c6 E
set xmax 30
+ |2 J8 ^5 f# h: @' Q% \. M! k, Z
set ymax 1.0* g( F2 @8 l8 v6 X4 ^7 W* z3 ^; r7 {
0 G/ H3 X; H$ E" B% z) M; x
clear-all-plots* w; ~" Q' _/ @* y
- Y' D3 M4 D4 @- I8 [; Psetup-plot1. m: i, Q9 L$ K: |6 d) P
. b5 g5 Y6 O5 nsetup-plot21 V" o6 m% |+ J" A
, y+ X1 R. g, a5 {' ^8 f' z9 Bsetup-plot37 P& P6 L" @& W
end
" P6 i' _% f- t9 c1 N9 x* t ]$ m5 `3 u
;;run time procedures, X0 J* K8 B# X7 l4 j5 o% _0 A
4 R& Q S9 @- H9 @3 gto go
N7 [* m1 H8 d0 L
1 T/ \ S3 E$ @$ fask turtles [do-business]+ }4 D3 R, M( M7 [) |7 k8 B6 g; y
end3 ~: q5 Z& K/ F. G+ I
S5 ~0 i1 S+ w# i7 l
to do-business
$ Z) K2 M! T* L$ M# y! o, I/ Q+ P+ h+ V3 y( Y* M
& q& C% P( q, \8 K
rt random 360
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fd 1" E$ E' V7 n/ l" g. }% |0 D1 e
& b3 I0 j) D; f+ N5 ?ifelse(other turtles-here != nobody)[
* z9 m2 R0 a1 r' y8 ~% I! z! o. B0 X! l% L' k1 V
set customer one-of other turtles-here" n6 D' f; c0 Y
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;; set [customer] of customer myself% e, p) I4 i! o' z
; d: F. u5 L: ^+ C$ m, j5 zset [trade-record-one] of self item (([who] of customer) - 1)
) W. a, {- J: x- y/ @[trade-record-all]of self8 o3 x7 ]3 r, h9 q. j; o
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% b" J( D5 C$ ?$ c, E5 x* b' e% D k4 t9 R& C5 S
set [trade-record-one] of customer item (([who] of self) - 1)) z$ h$ ^ n# T% @/ s6 A
[trade-record-all]of customer$ @; i/ P% q) T+ [- t7 H
# b! [9 T& F7 M. D9 }; f
set [trade-record-one-len] of self length [trade-record-one] of self# G. v$ E' r n5 S* e& G% q# U# Z
9 T7 S" L' i7 I3 m6 q3 Cset trade-record-current( list (timer) (random money-upper-limit)), z# e1 ^5 K, x, K6 {: q) W8 r
4 ? x( B6 p% d' A' u9 p/ Q; mask self [do-trust]
}/ n s* @" x6 Y: Q# L+ ];;先求i对j的信任度
/ z8 V3 U/ W1 I
. s( V Q8 |9 b0 sif ([trust-ok] of self)
2 u' Z! q A7 H: T;;根据i对j的信任度来决定是否与j进行交易[
+ b$ _: s/ F3 _! g4 c+ \) task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* I! l ^4 C% b" o
/ i8 n+ u: ?1 f9 n2 `[
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do-trade
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update-credibility-ijl* ^4 c M( t6 T' F7 S
9 l$ p9 ^. T! [0 F' Iupdate-credibility-list0 Y% |: I5 V, F; S* q* \. I' o" H
. v& H+ F A3 Q, i5 X r
3 V1 N+ a& `& Q% {update-global-reputation-list; n2 g) W. m0 J+ N* k" l' L
3 _/ c- V; R: g8 B+ Ypoll-class
( D2 Y4 g+ {# ~" \- {$ B/ z# _7 l" v5 y) v5 W
get-color# B! y$ x/ U) @- C: l
- }% x, ]1 H( M0 a]]% R3 a* T' P. u7 I$ \2 W; [. T
6 _- F5 X! L( M( e
;;如果所得的信任度满足条件,则进行交易
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: t8 e8 n* ?9 x+ N* p) v9 l+ b[5 l3 @7 A$ p) G! M3 n& G
$ Y6 o! v" C* s8 t" L- _
rt random 360
; a+ o- G. e1 h) h3 Y$ V5 c1 O1 V+ ^2 I& m8 f! N$ h
fd 16 {4 m! X6 D7 Z5 P
) ]) {) |0 p% B
] G) H/ D/ X7 U& M& J5 Z& K! _
- ~& z! |3 w) ?" u. f0 n, ~5 C
end
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to do-trust ( Y8 T B& P& ~& h m
set trust-ok False
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+ O" L2 G* ]7 m, f
/ w% ^ @* W$ f( {) ^: [let max-trade-times 0
! r0 E, j$ X: z$ X) Iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; S0 l' P; h5 _# D/ `* Plet max-trade-money 0' R& r, w0 }0 g( U$ O
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! ]! A: y- |. ~; v3 ^8 q3 llet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& n+ ^5 D* T7 g) p E6 K$ w
2 t5 o' G! U. S# J L' x+ p
- V# h+ h4 T2 k0 l, q# D6 q) \) aget-global-proportion
) {' e( C5 \2 u5 ]let trust-value" m5 m) L" W4 B0 b; c! x4 l: H
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' ^" T B# x. {% l/ uif(trust-value > trade-trust-value)
& |! c, R+ P q" d* }[set trust-ok true]
1 z! u& X5 ~/ ^) {! Z9 Rend$ ~$ j: G7 ]3 B; Y
, ?% z( M( x( O" P+ [
to get-global-proportion2 [0 M4 y7 x1 C7 }1 ^* o2 B6 U
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 a* `4 k% ?2 _7 |' k( _2 \[set global-proportion 0]
! q2 }, ?: e3 N- X% K[let i 0
1 D+ p3 f9 W( c* k! mlet sum-money 00 t! c2 i a" m/ y9 v& }
while[ i < people]
( y2 p' \3 J. W' s% N F9 r. S[( J* G. D' [. B' W0 e, [
if( length (item i
6 ]' S2 X: F0 I+ x% ~# Z/ B+ M[trade-record-all] of customer) > 3 )5 x, Q6 T& b2 C B: Q& r8 A
[7 I* { e8 c2 I- Y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))% U3 ]6 A8 I8 N* S2 k5 m8 o
]
, B0 i1 Z2 R2 T) v9 F]
" B4 {/ V& b8 f } J9 slet j 00 a$ k* _/ U# F7 h, c/ U+ T/ g& l' a
let note 04 v% u5 _% }. @0 T/ N5 y' H/ u. M
while[ j < people]4 h3 k9 B" s6 y
[
M: Z' Z$ E" ?; Iif( length (item i8 ~8 o) J5 {8 d! A* d: Y. O
[trade-record-all] of customer) > 3 )
, j% R S0 ^# F( E[/ l) C/ s6 P$ ~
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 r+ [; Y! }5 F2 x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( q3 f1 \. z; z+ P. M: H
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" j- m1 U4 R+ v% N j2 E* l" d( U
]
+ l& _: f6 B. X3 g4 S# l: L]8 c# D1 _7 e& x0 l# [1 w) M% Y. z, z8 f
set global-proportion note
S$ o% ~9 n( m7 W& z' B7 ^+ F]6 H n% x1 a- @! U* O
end# I9 H+ C: R7 |' ]# L4 L
/ ^0 C4 N/ e1 L: D: _* @+ b! mto do-trade
) \2 h, B; H; K1 [;;这个过程实际上是给双方作出评价的过程 D6 `; I. z! b/ ^5 @: P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ i- U0 Q) _' G5 @" Y& Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' A# U" |9 | D' W* l- v& ]0 w
set trade-record-current lput(timer) trade-record-current
5 a I& a* Z& M7 |2 d;;评价时间9 ]) ]$ g9 Z7 F% r3 D
ask myself [5 M* B% h, Z9 |. A
update-local-reputation) s$ N$ Z& }7 r9 y
set trade-record-current lput([local-reputation] of myself) trade-record-current0 x C) U: q- e) d8 E, P
]
, y3 R$ K* k- W9 ~3 Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: B( h# G+ w7 {3 d0 B. k! ~
;;将此次交易的记录加入到trade-record-one中
4 J% r9 z# v) y4 V5 H6 g# gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): s* A# u/ e. z2 [) ~
let note (item 2 trade-record-current )
% d, i2 P6 Y! b# r3 fset trade-record-current8 J* _/ `& Y7 \! O/ c6 B4 u
(replace-item 2 trade-record-current (item 3 trade-record-current))1 i# c3 I* q) N Y3 K; H+ l
set trade-record-current
8 L( h( i' @5 k' ]$ e `(replace-item 3 trade-record-current note)
: S% E% ?" l/ A( a5 c5 Q" I; Y# g8 W
* W4 T! [9 {. `% \6 |1 p6 g6 @ask customer [
$ a2 q0 H9 J: x. s. P, Vupdate-local-reputation0 c$ C# \5 ]8 d1 h( [
set trade-record-current
% }2 W7 T$ ~' I s/ k: d$ Y/ p& h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 O5 J6 |# Z5 B2 D5 e; I]
& ~; d/ w% F: S( @3 P7 P* [) @4 c1 w/ s1 ?2 @4 W
% j4 G, J( L8 m7 a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 }/ u% o0 |) q8 N. l, R
3 L- q/ k/ w3 J% F- z- P- J
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 B7 a$ o- S' u8 t) o;;将此次交易的记录加入到customer的trade-record-all中
& s2 A9 m' X3 f! N" nend8 `/ ]& e8 Q0 M+ H
# ^9 a. C1 K' Z
to update-local-reputation/ z; t9 z, ~5 r* k: @ W* H/ i
set [trade-record-one-len] of myself length [trade-record-one] of myself, D9 { h" f( N1 J, W. Q1 j
* L" d& p& p, C: {& X! j; w
/ [% L7 u. U" |& V
;;if [trade-record-one-len] of myself > 3 - t! R0 ?" L+ y4 Z9 A
update-neighbor-total l' d7 {1 A+ h) c; s5 i
;;更新邻居节点的数目,在此进行
' `5 q1 K: s) v$ O0 hlet i 3
" a5 y1 A! Q% j" `5 U9 z: U3 \let sum-time 02 w3 F) Y$ W( p+ q; r# [6 K$ |' D W
while[i < [trade-record-one-len] of myself]
. ]3 a* v. i9 ^* k* K2 M[
) X6 Z0 a1 |& Rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ q+ j6 e- C7 S; h; e" Iset i( d) |8 b5 C3 H" R* W
( i + 1)
: h* I% u( x1 S; h L]1 j9 ?# }- J# V# K5 \ o
let j 3
2 ^- R: {6 f) S2 a, plet sum-money 0, C* }' Z5 z$ j
while[j < [trade-record-one-len] of myself]
# u( Z1 P- g4 L( | s[
( k* x; C! R- T/ G( f% k1 l7 m8 q4 Nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)- i- ^9 E @* K r7 G
set j# [# v$ v/ V1 I% l
( j + 1), O7 A9 l6 B+ x& ^* R% }
]) r3 L2 d3 r9 Q) j) w2 h
let k 3
: z/ b- \6 Q7 qlet power 0+ y( m; J, u2 F! z5 A% b( E
let local 0( E1 T. B0 f$ p' ~
while [k <[trade-record-one-len] of myself], w4 K" G# K$ ?5 M
[) V) q5 m; b: `- l8 j' m
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) 9 }: Y9 v# i6 G
set k (k + 1)" m) F6 m2 H$ A: [; C- e
]
0 z: P# U2 r: |; q$ V, h, _set [local-reputation] of myself (local)' x5 n+ j3 y. Z7 y$ r1 |# I
end! F/ x8 P6 M5 k! h! [$ S5 ~0 U
/ ~6 q4 I$ N- e; k9 d5 {! I2 |to update-neighbor-total
/ I3 y) i( d0 ?4 B" I3 C5 A Y2 d) n5 o3 M7 Y4 S2 |
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! K; I" B4 g/ k9 q% ?: i6 d
, s8 w7 t+ K( Q4 v+ ], ?9 f2 \7 ]* d$ H
end) E8 F4 Y0 C4 v
- j; L5 \$ D: k: \+ q L7 Qto update-credibility-ijl
; D h: Z7 \ R% K
. t8 r: o) F1 |( V& @;;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。
7 J: s W7 ^4 Alet l 0' i4 _# H! t4 Z- Q7 A% \2 v. r! D
while[ l < people ]' t! L$ s6 Z% I4 B& Z
;;对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6 u3 M: j* U, B C
[
( @1 G1 q6 R! @9 d' S( j! {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- e5 X+ Q3 {/ ?6 Zif (trade-record-one-j-l-len > 3)5 G: p1 x9 y7 p a
[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l的trade-record-one
. W( T, W' f( t1 w/ I2 {2 a8 ?/ klet i 3
) X. i- D& _) `% z' L- A4 [$ { slet sum-time 0
! a! m5 A8 X* ^* \; ]1 @- Ywhile[i < trade-record-one-len]7 s3 M' r; _+ b! j
[
5 ]4 q: \' w, m8 f, s% pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# Y$ @2 p) c. C1 I3 A4 fset i9 h% X% L. u* m0 ^
( i + 1)/ J3 r4 k6 X0 r. d
]
0 q/ u) K% X% g, x4 F/ Slet credibility-i-j-l 0
; l8 X+ w, o2 U) t9 q/ o' b;;i评价(j对jl的评价)# g! ^3 {% E$ W; c
let j 3% `0 q+ @( o/ D& P
let k 4
* j8 Y; ~1 f5 C+ W7 X- g& j+ i. [' xwhile[j < trade-record-one-len]
( S, d( Q' D2 S[) H, d: Y( ]% a4 e; ~4 [+ e
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
+ T9 V4 t3 ?/ V4 Yset 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 i* T1 s& T6 p5 ^
set j
& h- [7 z2 m: Q ^& [2 x3 O( j + 1)
1 J; q/ K' Y6 K) m/ `; X8 G H2 M]6 Y+ Z, g; @4 P+ g0 c
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 ))
# {# |$ l( |' ~# J7 A5 i
& Q1 `1 L! ^/ o5 S# \! E2 t9 i/ o: I) K( y
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 k! `+ `$ z1 E. o
;;及时更新i对l的评价质量的评价; R8 ^+ L9 S9 W' F9 n
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 _ c/ S% [9 ^" c4 s/ Mset l (l + 1)
7 a2 a4 h# j) J. P1 r" a. ^) @0 e' a]
5 S$ L( e) m$ K: |! C* ~/ Gend
& o1 J5 u' B- e1 `& [) O9 D) G' I! `: y5 v; b) j1 b
to update-credibility-list9 X/ m4 {; ]+ _- I6 C" E+ X" r, M
let i 0; f1 d. \5 ~3 s" @/ p* }* H" `. A
while[i < people]
9 V5 N; ^6 T4 M9 Q" z[3 u S% b) U# l5 _
let j 0. Y# t; N K: E5 d* P3 r
let note 0
: x- x4 q8 f2 m- m' X2 Z/ ulet k 0, D6 t9 |. R9 [/ P$ x
;;计作出过评价的邻居节点的数目- R, N) x, u: J9 ]
while[j < people]7 E: ^% F+ E7 X, u
[5 h; r5 |4 F/ y9 V' ^
if (item j( [credibility] of turtle (i + 1)) != -1)
+ g. ~& h0 E6 y; g, W6 Q;;判断是否给本turtle的评价质量做出过评价的节点9 z. \- ^8 C; f* n: {$ T3 Q! b" G
[set note (note + item j ([credibility]of turtle (i + 1)))
8 i8 W+ g2 N) l6 W; b;;*(exp (-(people - 2)))/(people - 2))]" _2 m2 R5 \# b1 B& c$ M5 _2 N, S
set k (k + 1)
. T; G$ [9 ^! M+ D0 n]* J2 {8 J7 }+ S$ G: [1 I
set j (j + 1) K8 u$ Y4 x# L1 r! ^ U& j
]
! f1 @. ~" u* |6 ?% }set note (note *(exp (- (1 / k)))/ k)
) F" c+ t. A, \7 P* Y" }* {0 i" x. pset credibility-list (replace-item i credibility-list note)
! O5 d0 ]- ~" v/ Zset i (i + 1)
/ M! p2 R3 f% Y$ \ h+ ]% }, u]9 g b; n- K- W* K# K! E* P8 W" v( L
end
) C0 W( d! q0 r3 u7 @
. J) o" j) ~/ i5 R9 T6 [! mto update-global-reputation-list8 P: }/ a- n( ~( b2 ^" k
let j 0
8 Q O H1 y% y. ^. Owhile[j < people]) v4 O1 z- V. p( a/ y. V3 Y
[
% a2 n$ L$ u& d( |* L2 t7 Q8 Blet new 0
8 n% j, ~3 X+ E;;暂存新的一个全局声誉
% n6 e6 A4 I# [let i 0
, Y: J+ I/ U8 e: dlet sum-money 0/ W, L8 _, l- I/ ^( m. F/ c
let credibility-money 04 ~" B3 K4 u) ^/ |( A
while [i < people]; ~4 Z$ z/ `, r4 {/ R
[
8 k: @4 X1 J$ h( A; Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): I# A2 ] ]& k% ^# w5 n" u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" l* }6 l' B3 w p/ | d2 J8 H
set i (i + 1)$ d7 ?9 f; E. ^! j2 P$ Z4 d
]9 U" w0 R4 Z) H+ H# V( y) I6 ?
let k 0$ O! F& S9 ?+ ?/ i. G% _* x
let new1 09 z' Q) X5 L1 z
while [k < people]
n8 o( W% c% \ J, k( h% M[$ ?, _# z4 Q& O/ ?$ Z' M) T" ~) }1 x2 S
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), i2 _% j9 ~! q: ~2 u# t
set k (k + 1)( h$ y: i+ A1 l1 M
]- [. Z, @5 p3 F9 M
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * Y. r9 N& c; f
set global-reputation-list (replace-item j global-reputation-list new)6 m8 c' o" b9 n0 A9 }" i( Z
set j (j + 1)
1 }0 x2 w5 X; @. i; n d]# [5 D- Z# B9 Q# W. U1 `! u6 l
end
' |6 L8 @, n- s# m, u- H5 P/ `% O3 e) N! A- ^$ }* J+ v
2 T# @0 n! b, L4 ?$ e4 u( p. _0 M5 l% I: v# y; b# V3 {
to get-color
# G; P7 V b* e, }4 g( t& _2 p {- E- s
set color blue
: x- R* v- y4 _2 kend
! g P5 R" v4 W* g% e
) B/ {. u: n( A) L+ p" X, Y' f/ Eto poll-class% n: K9 ?# a' z' {) ]' @- \
end! L7 w2 ^5 t$ m" v' l- I) t, T
5 i4 h, W& f- K tto setup-plot1
( p% M4 r: B# m2 `& R7 o
- G. K; D; R k6 _% ]8 u f9 ^/ Dset-current-plot "Trends-of-Local-reputation"
V7 i$ g( R$ \+ P z T4 o+ K; y
4 E! ~, O2 L' @set-plot-x-range 0 xmax& u# |3 G4 s% n, ~2 G% M; J% O! r0 h
, w4 i, H7 }9 K
set-plot-y-range 0.0 ymax
; M- i7 F! \; f. C6 `2 r+ y$ A: f" cend: h9 T+ W' A1 ?; z b `, h
1 p& [/ f: t5 [0 Rto setup-plot2( \( r! V& ~/ ^: z
/ d ]7 W- `, e$ E' Cset-current-plot "Trends-of-global-reputation"( ~3 p9 J; G" y; I" p
6 V- v% \% E5 y, ?$ |4 gset-plot-x-range 0 xmax
4 o/ e4 h/ u$ {
6 P( E7 R( ~2 d2 L' pset-plot-y-range 0.0 ymax
, G5 P! T# C3 v, F( eend
! u1 _1 f" n3 U; G% G0 D" w- A/ S. j
4 C1 d& T+ s9 h; O: Fto setup-plot32 b2 E* r& K1 Q5 p
4 J7 e- t& S% dset-current-plot "Trends-of-credibility"
# i3 ?, c7 a. V5 }$ ?
1 e; f4 V; m! hset-plot-x-range 0 xmax
7 Z0 o# @1 C$ {8 W9 F& Q( L8 G/ H* f9 [! a! V) _! V/ Y5 Y
set-plot-y-range 0.0 ymax
9 k1 R9 r5 b Xend
7 \5 y0 z+ i' q p$ y5 {6 f2 ]% j, ~9 r& [4 Q5 D. b: d7 v$ H# T. l
to do-plots
* W9 G" g0 ?, z/ m7 v- s! k: dset-current-plot "Trends-of-Local-reputation"
' s/ M$ A" i# @set-current-plot-pen "Honest service"
4 r/ F0 K; q: z6 D5 m. C% jend$ F2 n9 x8 U# ?% Y, F
' T$ J1 X: ]( W* U }[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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