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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
2 a" A3 d, x+ D0 @: y# i3 \globals[4 V, t1 H) X+ q' u5 y O6 ]5 s8 i, E; X
xmax5 }" X% E( H$ k2 `- W, `
ymax' X7 W+ s# T& U4 a2 B, b$ Q: I
global-reputation-list6 c" ^; t, H6 [5 H& w7 Z3 c# v+ g
3 t" o* P4 R2 T. t, r: Z- K+ p;;每一个turtle的全局声誉都存在此LIST中
* S, |2 V0 ^9 _$ A: Q jcredibility-list2 ?1 U+ r6 G+ c4 q$ z: K
;;每一个turtle的评价可信度
) L' x2 y2 I7 G/ r. A9 Ohonest-service3 d1 { R1 I4 ], T
unhonest-service, | S8 q' s9 K+ ]5 G- s8 S
oscillation! P4 T4 C3 _# g$ c
rand-dynamic; F( e! D4 y) c. p: C7 u7 |' ?. p
]
' {1 V0 N( e4 V: I6 t6 v4 Y1 a* B' k @; e& p% S1 \4 X
turtles-own[
: n) W H& p" x- L/ a3 ^5 F* n) |trade-record-all+ |0 P% p+ W2 V2 ~ i
;;a list of lists,由trade-record-one组成- C! j0 C: J7 x7 f$ b0 ^7 a
trade-record-one
# T4 M4 M4 e: V;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# d# H. H! ?% A I, m
" E; }$ y7 x9 H8 e;;[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]]0 ~( T9 d0 W0 ?7 Z( l+ L( @
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]
: G" J6 q' C' U2 ~5 ?1 D9 \( Tcredibility-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list5 k& X } O& e& ?& C I. ~
neighbor-total
; t* I' s; [: @' W) d$ D( P% K;;记录该turtle的邻居节点的数目, j) f; i! U" Y1 ?# e; k" Y1 M
trade-time7 |8 i; U o: i0 N3 D0 C$ Z
;;当前发生交易的turtle的交易时间
; O/ M/ W- f3 j0 r) ]0 n& Jappraise-give
' m; s( s" T9 I% [3 I;;当前发生交易时给出的评价
9 n" I8 q0 L6 b$ a: B% Oappraise-receive) i' b+ _8 a+ W* G5 {9 z
;;当前发生交易时收到的评价
1 i+ X7 o, _# g6 A) Lappraise-time* @. V6 Q! [- @. {' W4 Q2 m
;;当前发生交易时的评价时间3 Q' H) I- w& _9 F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 G4 a, E# S6 T6 v) Jtrade-times-total
7 g/ o2 U5 o9 ~4 G6 `0 [;;与当前turtle的交易总次数
! a2 Z; Q2 a7 a- n7 L9 _6 {+ a" y7 Otrade-money-total* l/ N0 X$ ^ V8 C* t/ l2 V
;;与当前turtle的交易总金额
4 r4 O9 V* k) e( K: j- o- S3 Ilocal-reputation
( Z A- I% v7 T/ {global-reputation
. S+ h6 s- ^$ w& H. C( I3 xcredibility4 I. }; \; \# m, H3 B
;;评价可信度,每次交易后都需要更新$ f; h Z$ q& y. T) _- \3 S. U, O% x
credibility-all) E0 ?7 a# D) M
;;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
: |# F4 l' V3 Y: b6 |1 I
3 V$ j/ ]# Y& s" i! H. b;;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0.52 j) X% m! |' K9 W# ]8 t2 x
credibility-one
/ ~/ M" o' k! \# J% P0 @( I- [;;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/ [# N' C9 b. ]$ |. {8 Y7 T& D
global-proportion0 n+ J# G( {; I" b
customer
b K2 E) i" y* b- @customer-no
! o' E* x. r1 m( Q5 Ctrust-ok9 _: u2 z8 I" m/ l
trade-record-one-len;;trade-record-one的长度2 Q2 t3 ~4 ?. G) n1 [, v
]
/ N8 h( r& ~* \0 L0 p1 ~
4 ]& B7 _& s" ?+ c8 y9 p( d;;setup procedure
+ }2 T I/ v2 `) B7 |2 Z4 o: A1 c+ x6 h: y
to setup+ [' Q) L7 ?0 ^
2 k* r* g, ?$ }- ^ca; {7 H/ {" f$ @/ r- G: ?
4 [ f$ o9 F8 A7 Y: m3 z6 K! ]initialize-settings1 Z1 v$ `3 f1 e# N
9 o9 k7 o9 R( S! k9 p
crt people [setup-turtles]8 N. ~- v( l/ W+ C+ w- H2 ^8 [- |
6 B; x8 B6 D7 Greset-timer& L4 t( O% Q( [% j. T4 F
- i8 }! K: X' e0 ~
poll-class
7 [8 z8 d( }5 k4 |1 I' W" d' c) c. l2 E0 c7 {; g
setup-plots. `. R. i3 D6 S w
: u8 o8 k5 N( x0 K& ^do-plots
2 Q% q) T! e: j* h+ q! aend
7 M# v6 O5 D8 X; z
1 A5 e0 |8 E. |& f) C. s }) ~ xto initialize-settings
5 Y8 Q& H4 K# G' O
2 P0 I$ W2 H/ B+ wset global-reputation-list []. g( }( `. c# x: @9 R* S
1 d; h4 G/ Y" y$ i! h8 M
set credibility-list n-values people [0.5]
. V9 F( {* Z1 L$ Q! q/ W' {, j T
& }! o6 E b! g4 R$ Uset honest-service 0
3 x+ i I3 t# k9 v- O& A4 Q+ l
# @5 M @: W/ kset unhonest-service 01 ]8 ]) l5 q5 @9 q, n! L) F; m0 o
/ F9 W) F) y& O j. k# H
set oscillation 0' M! d2 E. l. i, C& v. S4 \# m
1 S$ e/ E) P: ?( i% y5 k$ Sset rand-dynamic 0
% V7 R# G! o+ @/ C! U" Z1 Rend0 |0 B: R6 D' }
3 v$ c& Q# ?% Bto setup-turtles ! N9 n. X8 ~$ M2 E" f* l) M- o) \; O
set shape "person"! | F6 `/ Y3 Q* f" G: s. M
setxy random-xcor random-ycor
4 D9 w2 |7 {6 j1 m3 k0 H4 _0 xset trade-record-one []2 ^: y* l) [0 I3 s2 o
, Q0 S7 X% X d5 j0 ]3 V V
set trade-record-all n-values people [(list (? + 1) 0 0)] + j! W3 A" `& s+ q) w
G& K7 R$ B7 t6 l7 V( q! L
set trade-record-current []
9 R1 S8 u5 C. m6 t4 `0 S4 uset credibility-receive []0 M' q+ l' u6 O& T; o; W7 b0 E
set local-reputation 0.5
# a7 ?9 N% K# R9 r% f( h* i7 ]set neighbor-total 0
j" N' W# f; Fset trade-times-total 0! m6 U% `8 q _) \1 d
set trade-money-total 0
# D; W* Z( m8 x: L) U% ]set customer nobody
# p$ s3 [1 D0 D6 U! jset credibility-all n-values people [creat-credibility]$ n1 `' V- W7 z. Q; n
set credibility n-values people [-1]4 p' F+ e$ N4 M4 k
get-color. H* }" b. ?2 `1 d9 G0 e& x
; | l# J) w! j* @end4 i! [% r5 r: f+ A
( }7 ~- ]: C' ^% J$ Ato-report creat-credibility
. _2 T* h, P, ?$ y/ l: Sreport n-values people [0.5]
/ Z: ?4 _5 v, ~& w" Q+ \: Nend! n& W: E- x. H. i
5 O5 [& [ L7 M/ k& `to setup-plots
' O6 h0 I% G- ~/ k1 d
: M2 B) ~3 y, Z: N+ [# lset xmax 308 B- y3 _! J0 P
" G' R$ @1 R* J# o+ zset ymax 1.0' Q3 X6 t' q% Z% A- d
5 ^# _2 r7 n# a6 A
clear-all-plots( V. Y6 W L0 w {: ?
$ d0 B$ k) y: R& J7 Ssetup-plot1 G1 |$ X/ p. M
4 S+ ^7 {/ k+ z- msetup-plot2 m; `% [ f. ^" ^- m
. E3 r! F7 l8 V: D, x& o2 P! [0 ^setup-plot3
$ T. i, J4 Y3 [3 ]end8 @: R% W6 N4 t
; u5 Y2 N1 y7 @. W
;;run time procedures! t) S P2 t- l6 P$ ~1 ?0 A/ i
3 T6 L7 G+ f- l$ R2 \# Z
to go
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ask turtles [do-business]) I; m- h# t0 V7 \# C; ?. f
end8 R8 N; H3 q1 g/ v; E4 K, o
- {4 R; z, S+ t6 e: e) Q- kto do-business
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3 w* J4 Y) b) b1 |% G, W) w$ f7 T2 ?( U
rt random 360
: Z2 n4 h5 v3 w5 n
) `/ k6 g& _! {" k! s7 `: i$ Hfd 1
7 G: z9 I: G: t: a% V# W8 G. G
4 P" M O& Z- Y r% Q, Y- Jifelse(other turtles-here != nobody)[
- ]+ `" _% P' h2 b3 _
: Q `; c5 R& W0 _* k% }/ Eset customer one-of other turtles-here1 i, t" r* h" S+ E; o
! O s) u# N, W8 [( c
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)/ V5 t, d% C6 Q1 I$ s. v: o$ N; q1 A8 [: |
[trade-record-all]of self
- Q5 E8 C6 M, ]- B; g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( m8 G, C; R9 R0 }3 k! k* y
& Q& d- [. D7 Gset [trade-record-one] of customer item (([who] of self) - 1)( u, Y. E: t+ @" z f! h# _ {+ Q
[trade-record-all]of customer0 A* W: a2 `6 w4 v g/ z# G
6 F; B( e' r6 @9 y0 e0 z1 o# i
set [trade-record-one-len] of self length [trade-record-one] of self6 G! Y! S, u7 ^& I' F* u% H1 ?
7 ~. g6 s( l( v7 W( fset trade-record-current( list (timer) (random money-upper-limit))7 L' {) m8 ~9 `; E g& C# H
* n$ m1 N$ D& z, t8 s, ^
ask self [do-trust]
, A4 ]" [& Q! J o7 u0 h;;先求i对j的信任度
/ n6 x& s7 n9 o( s
- R$ C( y. Y" J, ~if ([trust-ok] of self)
1 P) s# x" z$ H: @) j, z( m/ C;;根据i对j的信任度来决定是否与j进行交易[& D+ w, g6 Q: y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 N3 |' I7 ^% F1 G) }
6 ?' y9 _" z" e5 r- w[
4 @% [5 s. c! ]- D: l4 a" A) c0 Q. [* x9 Z* [% M t
do-trade
: l8 y2 C7 i Z$ K6 U& X1 a0 X' e; ?) v' f7 n5 v- e: ^4 P+ m
update-credibility-ijl
* q9 f: `6 Q" N& K V
% H4 ~" g2 a: n& A0 Yupdate-credibility-list0 `" C" F6 L% p
. D1 j4 b+ i0 X) b; P& m% z# t1 ^$ p/ L9 J6 V3 c" Y+ Z
update-global-reputation-list
w. Z8 ?, J' e/ w0 I* l- I: C. H: D9 U7 e+ a* h3 u
poll-class
2 }9 z% D8 ^' I. i3 q* ~) j9 x8 K* `. c' b! c0 v) ^+ f" P
get-color' e N `# m# H
) `/ ^6 J, N2 D0 i: i3 {9 v
]]
5 E2 T6 H7 ?& K+ j$ ^9 _, O0 {; l4 F
;;如果所得的信任度满足条件,则进行交易
, {9 j' w; s/ g3 }! U, j, t: p5 ?! E
[
* o3 ]. P$ r! H. I; ~4 Y Y Z% C# Z, _" P5 R; v0 p. p( ]7 @
rt random 360
) o, y1 E+ c0 n, n) }& p
% b+ v- `. t8 gfd 13 W' G. P) I2 O3 ?
! g8 c( l3 S0 C) P]
- `, s9 p# U3 ` E8 R! b8 b D! l+ h/ D
end
" D" }3 b, A. R( j' v8 o; K1 h" h( Z# c
to do-trust
( H$ H# ?# }- L$ ^set trust-ok False
* a, O; r" h+ \8 V4 Q" D% p% {* ]
3 A4 ]7 W1 y6 `. ~4 q
let max-trade-times 02 N7 M1 L. B4 M& H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: X1 m+ x# B' y
let max-trade-money 02 ?8 v: z$ U8 x$ Z. e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. U, z- ~# u/ B8 B! v% C2 {8 p0 a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! \) U8 ^2 q+ Z: [' D9 q9 Z8 a S- B6 [" y) p8 P; @
! j/ ?7 q6 A, l
get-global-proportion m) g3 p% u: C. w2 J
let trust-value
O% ]& L) j, Y; R6 C' rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)% Y7 G3 m) l2 c6 R
if(trust-value > trade-trust-value)& d" ^' a& C) C+ u5 h
[set trust-ok true]* f+ r4 x9 N7 H$ m2 K7 O* M, ~
end7 W7 i) e. @4 J! w) B" U# ^ ?" B- H, m/ b
+ h$ |6 H/ N6 L3 k- R; K4 ^1 rto get-global-proportion; u! y, C3 \. E* @: e5 N
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 b& H2 K" `1 J7 D
[set global-proportion 0]
$ P3 l7 {, y' I8 V1 P9 E7 L[let i 0
& [" U' y0 e3 E" |% dlet sum-money 0
6 X( I0 M5 R' y0 Owhile[ i < people]4 r2 ?! k. E* O! W9 h% R2 ^
[
( ]! m9 L! Q) j0 o4 [6 i+ O2 k+ ?: |% qif( length (item i
1 P7 t0 @& C' H7 c* A4 b$ {7 k[trade-record-all] of customer) > 3 )5 ^( p5 _$ I8 Q4 l
[; ?+ t/ I, s& S: }/ s, G3 U8 u3 c
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 V2 N( P5 v- C7 C+ A7 A]
5 Q+ s! g2 w" K4 p( U1 a9 j]
2 t3 n, z3 { _6 ?- I; ulet j 01 f; t7 E$ t& _) h- ?# L. }
let note 0
F" V0 H n) M, b C; P' g: `% swhile[ j < people]
. J3 ?1 T0 ~7 ~! i/ Q5 ^: I2 s0 [[
& z# e' r6 Z+ ?0 f1 e. Q& z9 sif( length (item i6 R& N* o6 [; Z/ o* G
[trade-record-all] of customer) > 3 )3 Q! O! W. m. e4 h. k" H+ I
[
% P6 c8 d& h1 `5 ~$ Y Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" e6 W' h9 i0 C: O' K/ R
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ H: s5 P7 ^: O$ x* Y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 `8 H0 {, ~. c( v8 T; v& j7 l( H
]
1 ^6 u$ c# ~5 Q7 f7 b]
! T+ s* e! B! Y% v1 w" s5 `set global-proportion note
: @7 S4 F% `3 Z]
3 T; b" b o" a* m' D1 oend' C+ F3 q: u2 ^" ]) M! F2 m5 }, v8 U- B
+ Q1 o; @3 [% |7 T! I& v( A* s6 ?& yto do-trade5 W; H4 {2 M) ^3 e7 L
;;这个过程实际上是给双方作出评价的过程
* I* Q2 f1 T7 c6 F& wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# J$ \, m; e4 }' Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 x! Y- Y+ B1 d* ]. E7 [
set trade-record-current lput(timer) trade-record-current" n. {/ k5 v( |' \* z
;;评价时间
1 @/ Y o C+ L5 c) Z& g/ Iask myself [
' Z) A8 r5 x# N8 F6 aupdate-local-reputation
, b2 v: ]5 v* \/ k2 i5 Bset trade-record-current lput([local-reputation] of myself) trade-record-current
- K d6 V! y" N- y]0 K$ z$ E4 j/ O
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% `* U# A% W9 k- N1 g
;;将此次交易的记录加入到trade-record-one中
; P, y" Q( e+ O. S7 Z) h3 J2 ]# Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), H2 R3 G% U; j. ~1 g6 T; {4 g$ M
let note (item 2 trade-record-current )" V$ b6 T0 u% e! S
set trade-record-current$ X+ l+ Q. r" g+ D) u
(replace-item 2 trade-record-current (item 3 trade-record-current))+ ]5 j, d# |3 `0 F
set trade-record-current- i0 r0 N; o) R8 W9 {" ^+ r
(replace-item 3 trade-record-current note)0 o7 r- c2 T! `( O- _) |( p. w
; g4 a3 }2 `3 |3 X* |" T
# Q- P3 J6 w( aask customer [
$ y0 g+ O( R/ h8 B6 i! wupdate-local-reputation
k* _: k' l% j0 [( M8 k4 U }set trade-record-current- g# x$ P2 h y& h8 k; L
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' q+ a1 V+ h' r5 F& R/ u$ ]
]
! w, G0 N: [0 `& k' A5 A3 @1 R3 D" q1 c* n/ W- a. e7 h% k
* }5 Z+ }4 G. t9 Q1 @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( V" t5 @9 M- }. X/ x2 s( F
) ^5 b% S5 X7 i& dset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. r% B" m2 C1 @3 K* ~0 R;;将此次交易的记录加入到customer的trade-record-all中8 X0 k+ Y! G& j/ t
end
$ b& J% F/ v# K+ \5 a# k1 N& I- J: M0 k& g) K A3 v9 I. \ }
to update-local-reputation: r8 ]. M3 Y- {; j8 A. r1 m2 Q$ V
set [trade-record-one-len] of myself length [trade-record-one] of myself
3 b; }% V; _+ L6 x9 k* [' y, B/ c0 H, y
8 J3 r! S8 A/ b, e! `' L1 A;;if [trade-record-one-len] of myself > 3 ! n# E, Q* z! F0 X
update-neighbor-total0 J7 g* M9 M2 K5 d
;;更新邻居节点的数目,在此进行
8 |" M3 P% W: d9 X- c- f) Nlet i 3! z. ~( P* N# ~5 |8 S ~% d
let sum-time 05 S# q) X- h2 M' o. H8 |' q* ?
while[i < [trade-record-one-len] of myself]
; a3 x: ^2 D9 f# G7 U, F[
( y7 K1 M1 \, Q: s9 i' D- T1 N4 Vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); N1 `1 \! C3 I% ~. h
set i
& p6 Q |) a1 T% U: i+ p( i + 1)" i; O' }- `. S& F! l% D
]
' Q' d( F1 K4 H$ n# E( K! S, flet j 3
& Y7 k: X, [1 `' |let sum-money 0: Y: s( t) a) I' l D
while[j < [trade-record-one-len] of myself]. l5 ^ d/ `/ h) O: D
[+ z+ m& a" f& `! ], K. Z3 N
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)4 j0 h6 N t5 {' ?7 l! K3 C o' e
set j
1 [- w6 i& K' z2 L( j + 1)
" b9 c" N4 H; w0 [2 t# Q]( B3 \$ n5 k+ r/ p' A; s) ]% ^
let k 3( B* c4 t d" L [: u) {
let power 0
. Y% }* R( B; o" L8 tlet local 0
9 `" G, J/ O4 Y, T/ W' Pwhile [k <[trade-record-one-len] of myself]
4 E9 I$ z* }( @3 F) ^[, c X' D" ~6 C3 R9 W. S
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) ! q" F5 i, o1 k3 D) j* r6 C
set k (k + 1)/ V9 R3 J" ]0 ^4 g% n P$ V3 `/ A& p
]
; y' Q* X% { L) y) cset [local-reputation] of myself (local)
; H& }2 H. B+ T8 Z1 [ ^end
# d; D; W% q. B4 K+ a0 E7 _7 f& q: m% R; G7 u3 E2 \
to update-neighbor-total
" `' t5 k9 y/ H+ c g7 c5 u t) b* u }% I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 H8 J; l i5 q b! O5 C& a
- E& v# ` }) Z& n, z" V* z; \9 ?# A
end
5 ?6 @# H5 _3 H. X, f4 z5 l/ N
) ^/ A! Q/ E3 K4 m9 Bto update-credibility-ijl
% ]( a3 @+ z' z# b
, y) ]" b, c& ~( r0 q9 m3 q;;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。
1 l2 s: ?8 s" G6 v5 Z6 ^1 b# llet l 0
0 R1 z7 _; Q& A. `# twhile[ l < people ]
, u3 t) o7 y4 m/ ?7 m8 \5 W;;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7 k) x! [3 G2 G, {. r* e6 a- ]
[0 ], B9 \( [# {9 u
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! V) K3 m9 v8 z# ^. a: y
if (trade-record-one-j-l-len > 3)
% t/ O L. ]; t8 f) z& I[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-one9 U) Q, F2 m! K+ L/ p2 }& X
let i 3
' J% C, ]" D0 M" d5 ilet sum-time 0
h4 _( @" O/ W" ewhile[i < trade-record-one-len]+ F) ]) ~' c" u' s
[" F! A4 W: S$ h) y- {5 w
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, R- p4 K2 T1 p% I# Jset i
$ b! C, e. G( [' t3 w( i + 1)9 ~& f* ~& Z/ v4 t1 R: x* z& K- j
]% p% x& ^& @* ?9 ]: X7 s% u
let credibility-i-j-l 0
. _$ E2 w6 I9 L0 m' H;;i评价(j对jl的评价)
+ P. i' @& ~! R4 ^3 hlet j 3
7 r, k7 }: T8 ]3 z; x* J3 xlet k 4
8 r. d2 X% O" Zwhile[j < trade-record-one-len]! ]5 ?$ G8 |1 ?; x5 X
[& h/ r- U. z3 v6 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. T O3 r3 p6 J; ]# E' `" j
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)
( a& z& o$ V1 ^- r# Y5 Cset j2 U6 ^' U+ ~- H; t, A
( j + 1)
1 x, s3 P3 q* `]9 t5 ^: R" G" M1 O' I' w0 G
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 ))4 V' _2 I! {- L" a, \3 e: y
8 C6 K/ K* z5 Q# u" \( Z% S
) c. [, t1 v' } Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" ~- G" }2 G# C9 \4 D2 a- m
;;及时更新i对l的评价质量的评价
" }6 W- G$ u& o- ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) G. n) w2 A; Y0 Z- x9 o) n* R
set l (l + 1)
I& y, D( @4 U7 f]
) g7 v% v6 V1 Bend
) w D8 z; m" S' r4 w* ]8 n) _* T% s: u8 Z# L
to update-credibility-list# |+ T' t3 M B; Q+ V# ]) h. \9 G
let i 0. L: D t, k8 Y9 \! |
while[i < people]( I6 m% p5 |/ _ e* O8 i' _
[
- Z+ T) R- b! V+ olet j 0
4 ~; Z/ }; |/ N5 A4 Mlet note 0! i' u3 O3 M9 S* p0 Z: M2 \
let k 0
/ b. y* ]4 x; f) A; T;;计作出过评价的邻居节点的数目2 s( D1 j8 R' s# H W) L
while[j < people]
- I. g6 p* o. Z[) P9 F( E; ^3 q8 e z1 j
if (item j( [credibility] of turtle (i + 1)) != -1)
5 W e2 h1 h6 f;;判断是否给本turtle的评价质量做出过评价的节点
9 P; i6 y* ~2 V9 K[set note (note + item j ([credibility]of turtle (i + 1)))
& q1 t; H2 B% l" u1 B;;*(exp (-(people - 2)))/(people - 2))]. ?! p9 H5 M* g
set k (k + 1)
q8 U; c' h5 Q+ [: z3 P4 P]0 c. Y( m( b" |* G
set j (j + 1)
/ E1 c0 i& g" Y. U7 G9 j1 x5 X]: i# `. }' y# y1 O# \0 k* L" q
set note (note *(exp (- (1 / k)))/ k)
" Z! ]9 ~" E: h9 [: B* q1 b Kset credibility-list (replace-item i credibility-list note)
$ H1 g) R; J5 @, t" Y6 qset i (i + 1)
8 w8 c2 P5 {1 y( t. G$ ~' L]
5 f4 f- M# Z9 J; H- tend; c: G! }/ `, d7 z. j
0 h9 G% a' `3 |/ n4 A1 Y( P) e R/ Wto update-global-reputation-list
/ L1 Q" L: @9 ^* V& N2 l$ c5 _- ]let j 0
# u: j# J: }; ^1 ywhile[j < people]
; N4 J$ |0 ?1 V* O2 |- l/ s/ W[
- I: @) D( @6 o% `let new 0. _6 c9 ]' e: K. i8 x! y
;;暂存新的一个全局声誉
8 f5 Y0 m8 Y4 N& `( Vlet i 0
5 T+ W" ]* U, @let sum-money 0
+ c) s: }7 @, [. ?3 Hlet credibility-money 0' Z1 }2 j( i2 u4 w
while [i < people]
, o3 m: s1 J* s8 L' K0 X% C[, Q6 ~5 _$ @4 y7 g
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- B% R4 n. ?& F! \( \1 ~. Aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ c. z# `# Q( n' a- K* z
set i (i + 1)
+ X) j; R; `' e" J% Y, U3 x8 C H]
2 Y ~4 l" k# S* `. Jlet k 09 ?5 K# _+ K2 {
let new1 0
* R5 ?* D2 ^! f. o: l, O4 {while [k < people]
% k5 ^0 i5 S4 t ~- u4 M[
7 |# s( E3 `! U$ K4 [/ F9 M7 D- oset 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)
: H; S& H! F% D6 h4 fset k (k + 1)
$ U) @' `' k" ^1 j( d) |# []
( ]6 F' U; e' u0 R* |& n) `2 b$ B- xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 V7 M$ ~$ [/ `7 b4 E; tset global-reputation-list (replace-item j global-reputation-list new)/ j, F, ~& ]. G4 R
set j (j + 1)
# \5 U9 ^& m5 ?7 ]]# k: \4 W* b) o# {, D# Y5 O$ S7 L
end& ~# X0 D3 D. ?4 V" a4 Z
4 X% |3 O; C- ~3 c$ H1 }' f7 q1 i+ W( m1 {" A4 J! _* d$ a R
) d7 V+ b% c( y& z% ^to get-color
4 N9 R* X3 h) |1 q6 Q
6 C1 b( {+ D9 [/ Y# h, iset color blue, p! v% z( @" u4 f% r
end
3 b6 ^9 K( t, p+ C9 T+ y6 O0 T3 q+ O6 S
to poll-class
& j9 O8 a. h# ^3 s4 u& T$ S uend
. A6 X0 H& _! Q* M) X. {8 Q: W9 c& f$ P, Q; G
to setup-plot1
9 t3 T% f6 @. d$ ?5 B# _4 e
" s& ^$ K* p/ n2 c, g$ s( h6 Zset-current-plot "Trends-of-Local-reputation"" J7 J% L6 n8 [, |
# g; Y: s0 |0 d5 t
set-plot-x-range 0 xmax
7 H9 I& z' G) Q2 j5 m+ j$ L. v
7 [) K( Z; B" E9 x$ r+ |; q/ |: _set-plot-y-range 0.0 ymax$ _) Y! s# b: @# k" H& O
end* \5 F! w0 g2 J! J9 s' v& g$ v
# I) E/ T# A w \2 hto setup-plot2- F; L1 B( Q# G+ |( n2 L5 U
) ]$ Y" Y) Z' d9 |" E. E2 z0 r* _set-current-plot "Trends-of-global-reputation"6 Z' r2 n. x" C) e# Y# \
; W$ o+ Y. R! n4 n
set-plot-x-range 0 xmax; f) K: A- r1 o. v# M
. k, e7 N& l+ r9 C# Qset-plot-y-range 0.0 ymax+ n7 R* L5 H- K* h
end. y# s' O& Y: J4 C5 J6 {3 I
, x* h7 b" I- M. Z: Tto setup-plot3
b' [) n" G$ l' E! C. D
4 m/ p. O) h* v' Pset-current-plot "Trends-of-credibility"* o K- v9 t( U2 b
; ^, f9 x9 ^: W# t: W, ]7 F
set-plot-x-range 0 xmax
. Q9 B* a' W p1 {2 [4 e
& z$ v5 V+ T+ `set-plot-y-range 0.0 ymax
$ h) p+ N6 Z5 p0 dend
1 `2 R: { T0 p [! o
' d3 Y$ H; r$ _6 `% V; rto do-plots& r* m1 h' |0 {7 _& a
set-current-plot "Trends-of-Local-reputation": [& x8 C. W9 p' t! J
set-current-plot-pen "Honest service"
" t( D L& ?4 t! Z4 n6 Wend" p& f7 T& o. M3 C! e8 A$ a0 u
8 a: ~$ O1 |0 \! {& x[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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