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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
1 H1 B# g8 ~$ Q6 T4 e: m Z4 m7 eglobals[9 d" b6 [$ Q0 Q6 |
xmax
: J2 k, j& Z/ j3 W% {ymax% W* A. m& `( w+ h P0 s* a# X
global-reputation-list: o$ Q6 l( w- t* K: q1 k" C$ p
) |) `' G% F/ n; S( J- X8 P;;每一个turtle的全局声誉都存在此LIST中7 u# S# {/ R* W6 C; s
credibility-list
( U) `$ O/ B, Z: Q, T;;每一个turtle的评价可信度
4 }0 C/ b6 k N, b/ U8 r4 qhonest-service
- x4 h' X: V2 Uunhonest-service
2 {- m, K( P1 f& g% ]6 goscillation
& F" n7 y% k% A, t3 Vrand-dynamic
( _ o# N, I1 ]/ I% Q]' }7 }/ O+ D1 i
# u% L ` C" w4 s, Bturtles-own[
! g" a2 e. W; q4 [; Btrade-record-all
" d) {: R, F: N: Q) u;;a list of lists,由trade-record-one组成 g# b0 k! K# d
trade-record-one
6 f8 G' P4 m! i5 [& z4 V2 a4 q;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, ]/ W# V% d E4 O5 a, H5 k4 x1 ~1 F4 Y2 U- f7 b8 y. _6 S
;;[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]]
3 m ^$ N D7 j; B9 ^, ?' 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]9 K2 b1 Z: a7 w7 B' h( V: I
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
- o( E9 D' u. _% w; nneighbor-total
, [% t! E2 W8 R: R: l; f;;记录该turtle的邻居节点的数目
9 E- s/ h( t0 [3 l3 b- E/ E$ Gtrade-time
7 @/ B8 E$ W2 _! ], k;;当前发生交易的turtle的交易时间
3 l6 {; o4 ^+ I+ y7 Dappraise-give' Q* g2 q) `, M/ C) K2 m+ l. w
;;当前发生交易时给出的评价7 ~! Y1 |2 R3 ]" Z; D4 I
appraise-receive
; N3 x9 m9 Q" G& n! T, a;;当前发生交易时收到的评价9 a: E% m2 ^1 w' B4 E B
appraise-time. _" B+ w1 c# o7 ?5 p+ r
;;当前发生交易时的评价时间
4 S! y5 o' a2 o$ ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: W, i9 {2 j. e2 ?trade-times-total
5 b8 a. y3 [' u( Q& u/ r;;与当前turtle的交易总次数
: K) D5 C3 i: ? {8 g7 z0 dtrade-money-total j; B. w& P$ [% z- @& I* j
;;与当前turtle的交易总金额
# ?1 y) y( r6 ~+ w+ ~local-reputation& k; o; Y. K5 \ H* A4 U
global-reputation
) K$ ]: B9 n' ~( b! ^credibility; [ h& R1 I/ J
;;评价可信度,每次交易后都需要更新, u# @( S5 t4 M, p3 O0 U$ S
credibility-all$ X. J* n! z! b/ \) H
;;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/ b+ U: e h7 @ _7 H
5 v" S6 `, u1 \! Y, s( g
;;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
! _+ n" G/ y0 O6 |1 |credibility-one
/ L5 s. m5 |. M# b4 a* L/ A;;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
. t& J+ q9 \, U' U: e: E4 T, |' ^. iglobal-proportion
: o9 j: c. `3 U: C" b. Pcustomer
- D' z4 f+ N k+ W0 fcustomer-no
7 J" m) t8 V# _* Ftrust-ok
$ F+ M; }0 b w* j G* vtrade-record-one-len;;trade-record-one的长度
, \" ^9 C0 p6 ?6 q]
5 i7 B& \2 G4 T1 y/ l! e2 `0 @- L# h7 \3 K* h
;;setup procedure
) j6 u( J& P/ v6 n) h+ h$ X! T
' ]7 M1 P2 a+ y! H3 ^5 zto setup4 o8 ?( S. |; h
, ]! R/ B2 h8 k G# I9 F+ n
ca
0 T# {. }* U2 R" {) E$ z- N" N. ]. @) P' |( w7 E, x. M" o4 G2 k
initialize-settings6 S5 V( d3 J# A/ X9 F- ]
8 {7 A. _6 M3 l' }! S2 Gcrt people [setup-turtles]1 E* d, ~! W9 w3 _; ?& r
7 _. [: M' Q7 |
reset-timer
: n7 v. N) X2 g" z# u0 B5 n$ u. J, M4 A0 o6 ]3 ]5 S
poll-class+ K- V3 }& u; ?/ u4 g5 x8 _
) |# E5 W3 C& Q+ Xsetup-plots
2 {, z9 X5 Z, N2 Y% l$ W3 {4 g$ B0 `$ ~+ _' p/ M
do-plots7 M6 i: y) Z; @! ?" L
end
( g1 G- g9 Y; i/ o* ^+ _, f+ @) z% j5 o$ p
to initialize-settings( c% _! {/ x: o, y! r& o
, k) X2 f: K4 k: M) Yset global-reputation-list []
1 p! b8 I* o" ]. x. q0 i6 S4 W
L0 J1 I& K: f( S& m, j. ?set credibility-list n-values people [0.5]! K! V9 j4 s+ ]
7 b, V0 I$ u$ i% ?set honest-service 09 A: I1 Y, W+ F# l: a
8 z: ?# z @' o( _; l4 Jset unhonest-service 0
+ Z; \0 }# l* e% l6 B" T% ~& g( F
0 z+ V8 p. m8 @3 qset oscillation 0
& N9 T/ j2 U- X* V, i: E9 w
( H. d# @ [+ V+ t7 E, _, _; q0 R/ {set rand-dynamic 0" d' C H) B: A Q: Z8 w! j
end2 N5 Q9 C7 M r5 X; v) Z& h
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to setup-turtles l8 g. e% X4 E* r* i$ C k# R" T* T
set shape "person"# R& X* `# w3 a* j" s! k# d
setxy random-xcor random-ycor
; V& x* J( f& D4 i' b6 b- o% jset trade-record-one []
+ e. z* @) E) ~; P" v
' F* A. ]8 G# T7 Fset trade-record-all n-values people [(list (? + 1) 0 0)]
) j! c/ K3 A. Z$ P: J" \/ V2 h/ K, D3 ]! {8 G- e
set trade-record-current []
: [0 |6 Q* A5 i0 gset credibility-receive []# X* d8 \( e/ G( s
set local-reputation 0.5
9 U5 p" P7 @# z# bset neighbor-total 0
, m& k3 P1 T1 O% Z% p2 bset trade-times-total 0
* M' `7 Y1 ?! m" B1 U1 pset trade-money-total 0, m& P$ m. T) {6 B' j# j$ |3 L
set customer nobody# B# {/ @2 x! @9 `7 p
set credibility-all n-values people [creat-credibility]
! g( A0 Y+ ~4 Oset credibility n-values people [-1], p6 l7 z5 A" n
get-color+ d( T/ v5 l \9 F k) ~ i6 e8 p
5 n$ Z* X/ {+ C2 I; j8 \: V/ S
end
3 m. b2 P6 |! R- c7 z5 n8 H! _0 R/ f3 M( S- R2 S8 `% c* }7 w3 U
to-report creat-credibility- ?" B5 a4 F+ x' z1 b
report n-values people [0.5]
i; i% D/ ^1 S; R$ dend
4 @ t: R& [& O- t4 a; B* ?( h% A" ?) V; A; A
to setup-plots/ h- j; G* Q' K9 O! Z+ ~
; m, R. g8 D, M d- E2 hset xmax 301 Y2 g9 j5 j. V9 X
6 E1 X+ }$ v/ `# \
set ymax 1.0+ Q9 s+ }: Y* Q, B! k/ F
. I+ ^2 L& Q8 u% f( H7 M- v8 i9 Nclear-all-plots
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setup-plot1
8 j+ u |4 P1 m+ W: l* H1 B. i1 d" U* A
setup-plot2+ L4 D: M* z5 S7 B0 Z
/ `" [3 V1 c+ F& Z5 A( p8 w7 ?
setup-plot3
( q8 Y3 }' J& R4 R9 eend x7 w0 E- z. R3 o/ F
0 w1 n- M* F C- l;;run time procedures6 _, q4 _8 w; v* f
4 p: ^7 k4 Z+ v/ T. mto go
: Y6 O* [- b* A5 @* w
$ K% i8 z+ {" V# Q+ i# ?1 Y! U: ~ask turtles [do-business]+ {: o! `, e- U) j3 O
end+ q" _3 @; p2 k' `6 p/ }2 f7 ]% Q
0 b: R. l5 c1 Y5 e' b8 [0 I7 A& l
to do-business
5 {& w; g' R! W
1 }8 h( B! x/ y7 g1 P3 ]7 U' Z$ o
7 Q* e$ y1 o. u$ Urt random 360
2 `% s( a5 B; q2 k$ ]% p1 _/ `9 b* o8 ^9 M
fd 1) M0 {2 d4 q$ _
# w9 r: e4 u% `ifelse(other turtles-here != nobody)[* J# [; k# u! g7 x; X
[) J' _! b/ ?& O! p
set customer one-of other turtles-here
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;; set [customer] of customer myself
0 f0 u$ \9 Z0 Q8 @3 x
S) j8 J: O' B- A' Lset [trade-record-one] of self item (([who] of customer) - 1)" Y9 O' w- N" E- ]* I$ f5 B
[trade-record-all]of self* Z' U( w `' M+ \# ]
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 r+ ^, X, x3 O( _3 d* A0 j/ S
k* G0 j* Z9 ]
set [trade-record-one] of customer item (([who] of self) - 1)
! ]) N M' ~: l# e; u[trade-record-all]of customer
' G% L" T0 z& C( O1 }1 t. x
$ T0 m* G8 L- ?, |- Q% yset [trade-record-one-len] of self length [trade-record-one] of self
2 b( e4 _1 N4 |3 x
: y1 Z) t7 P3 j/ p; I8 Q6 gset trade-record-current( list (timer) (random money-upper-limit))1 E. p4 d$ {+ _7 ] g8 r
4 i, M2 x5 I8 ^$ R! @ask self [do-trust]2 F7 D* F) g/ {) T! E1 d
;;先求i对j的信任度
$ a- l$ [: m* {& o- S" o2 D g- I9 c# d
if ([trust-ok] of self)
5 F* j$ K- y* [! ~( F;;根据i对j的信任度来决定是否与j进行交易[9 X& W4 B: @, G+ H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& H4 d& F' _+ S9 ^
. e* B! D2 [" M( q[
- R3 h; U8 @5 ~+ n3 g$ F( e
' }9 T0 \! E+ f8 g; \7 Bdo-trade
9 A* M8 ]6 h3 w5 B1 r* e" B( R2 \/ U, `
update-credibility-ijl& D: q. T9 k5 J/ h
. q Q' s" D9 r( J; Z
update-credibility-list
9 A5 b& r1 e; F0 W7 p O" s) D6 G, z# Q( Q& G/ w
, K! L( y4 g4 a7 x3 ]: y
update-global-reputation-list2 I% R8 p5 [7 W) \' E4 K9 @" e
\3 U0 [9 l! I* ]
poll-class
7 ^, [ j1 c: T' V! o$ y+ D) X2 ?( e8 _* |) B
get-color2 e+ A: K: A3 A7 A0 B, o; i6 g( n0 U& J. d
9 X/ @/ k$ ]3 F, J]]
$ ~! ?2 _1 k) P8 ?6 t; P1 P( ?
! b9 }* j+ X4 _ |' v( I;;如果所得的信任度满足条件,则进行交易; y8 E- K+ k) J0 X
. v: O) A5 ^9 U
[1 Q0 o( K2 _4 x6 h/ L. j% z- h
$ l; K7 b( P& F" [+ Jrt random 360; P/ _9 [2 x; @; ~% \- V! i
! Q% N. c9 [' k( e8 ?+ D3 m
fd 1
- h% r8 V a7 o* f( f2 x) `) [- Q9 H, f3 [' \; y) |5 m0 B
]
& O$ e" H, T" B' G# k: P
5 J0 g( ?6 g. d1 m& }0 Rend
5 ]: M: C5 M5 \: v3 L5 ^4 n) r0 V$ ]
to do-trust 2 n5 Y2 L" B) _' B
set trust-ok False
+ p; t! c: c( N9 I; k2 C, g) w
! B# _1 n7 m/ V' o, ~+ T( O! |+ V8 i" F
let max-trade-times 05 W9 k" T9 H' x: b& K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 X( W- }7 y1 v: P1 b2 vlet max-trade-money 0
: ]- I2 _$ W4 W; l, Z# C8 Eforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 y* f. Y' D# x- g4 [+ Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 {7 u- ?( _2 k) | ?
5 a3 \ N. r$ l; P9 B( g3 n) G2 t$ J; ?# ]& d# H8 Z/ O
get-global-proportion8 ~! C( o! B) u9 [6 R
let trust-value9 v' K8 Q7 j, w9 Y9 {
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" z, K* H' o( Z1 N. G$ @2 \8 Tif(trust-value > trade-trust-value)
: D9 M1 W N& O/ E% l* i% t[set trust-ok true]: v1 @+ p' p9 i. d$ r
end, X; }8 R B& F ^$ Z) t
4 J$ {5 s/ S% {3 b, o
to get-global-proportion
4 l" P- {( M" @* uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); R1 I* `( G2 a. [0 C9 X
[set global-proportion 0]
1 }7 H, o- u+ Y5 @; o[let i 0
6 A% \+ x- c& f, Hlet sum-money 0
& d3 o& U0 ~6 |; U9 B$ Kwhile[ i < people]3 p& F1 R$ K5 `
[
% X$ ~+ {& T/ p2 [/ sif( length (item i7 g( G5 a* p& Y' J
[trade-record-all] of customer) > 3 )3 p. E5 N* j6 j& X3 [
[
( A4 T: k& ?0 W$ Q4 A; p2 [! ?% }# Uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* i( i2 ~3 l' F]5 J7 w X$ v: F3 K! N; y B4 f1 z [
]
- B* P4 L6 H- zlet j 0
! E6 j. W K' x9 [' zlet note 0
4 \, Q. G/ s( bwhile[ j < people]
7 v' k" A5 j7 N5 y1 [% q[3 F+ s" n# K0 T* G
if( length (item i
- q" X3 z% f$ g" w% s' m[trade-record-all] of customer) > 3 )% E+ J$ E8 A- U7 M4 u# V
[; J+ z, u: x! V9 u2 x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& A; D. D- [2 ]7 f1 |" A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 e8 Y- X. k( [5 a- I
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 q# f; G, m; b- p \1 _% W+ G' @
]
5 C9 k/ b9 T; O+ Z, A]
- j4 H2 O) L: M! k1 @' R- P' @set global-proportion note
/ ?/ `6 l7 m6 K* _ L1 o2 V]
7 v8 _9 d ?8 |0 ~9 I5 v5 ]end
6 U9 q. }- \" T8 I1 R- \' B6 P( l' K+ P1 f' E0 R/ F
to do-trade
& B: ?! C7 c+ F6 J;;这个过程实际上是给双方作出评价的过程
* N! w6 z8 M4 _: fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, I, P+ I; a) i" x3 h, [' Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% u: U; `1 _+ X* Yset trade-record-current lput(timer) trade-record-current1 V( J$ c8 d- S
;;评价时间6 U( ~4 H# M+ e8 H% N4 ^& I
ask myself [ F- I/ [* B/ t) m& l5 O! p
update-local-reputation6 f) G1 K/ D6 A% F
set trade-record-current lput([local-reputation] of myself) trade-record-current4 z7 z& o v% ` @4 L! i
]
3 g! \+ q' j6 c8 I* Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! `8 K. c" C% @3 B. h% ]& d
;;将此次交易的记录加入到trade-record-one中) Q; X9 ~8 |& }. D
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 b, I4 F% a7 E$ H4 b( C
let note (item 2 trade-record-current )
7 H N L z J/ Qset trade-record-current
' o; _9 L( L6 N; ^' G(replace-item 2 trade-record-current (item 3 trade-record-current))
- z6 n# ]" b" S" V# Mset trade-record-current3 Y3 q5 h! [. t( H3 Y B3 D6 v
(replace-item 3 trade-record-current note)
+ n* A# Z& R. a6 h" S$ b7 H5 V6 u4 B% q6 f; D6 C& ?5 e ~; ]$ P/ s
; [3 ~. Q) ^" ?
ask customer [; c. C! B) d: t8 h# I9 L' v1 `
update-local-reputation8 x3 U. ~# O& C$ r5 ?% i
set trade-record-current
& l7 s. K7 N3 u8 y5 U' l* W( v7 j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ @4 g3 f7 B3 `]
: B9 }3 G5 D. j" d9 q5 E) ?5 x( ?' ^2 e9 s. e! J( L3 p! _ V
' p4 ?, b. x! k. S2 g2 R
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 z4 Z* E1 s. y% [( l1 T/ \2 ~* v( A7 O! }& M+ n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
r) ]: i, c! X4 F( g;;将此次交易的记录加入到customer的trade-record-all中
g* v, t! ?# }' o2 g+ U7 X7 Q# D9 eend
0 i- x3 L$ y% M& P+ D7 D1 \6 [, a0 w! n) r2 o* P% A
to update-local-reputation6 A5 v+ x6 c9 _3 f w# _
set [trade-record-one-len] of myself length [trade-record-one] of myself
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) J* O% |# v2 I
;;if [trade-record-one-len] of myself > 3
% L0 Y3 R3 u0 W9 F- c. Lupdate-neighbor-total6 V# }1 W8 ^- R. ~- u) Y
;;更新邻居节点的数目,在此进行
: _8 u6 ?0 n3 z) [let i 3
; R. v( |- U: `0 _3 e1 |# r6 {let sum-time 0) R: h/ R* U2 k4 S$ x: P
while[i < [trade-record-one-len] of myself]. Q0 D. ^* q+ T3 d5 Q* o$ J5 c
[
( } M2 ?( i) W1 vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). n- q- x/ P: p
set i) S+ t$ t! j2 p0 m( [+ f* U/ R
( i + 1)
4 g" R2 B V' |4 F( r- B- e: c& {]7 Q8 J7 e8 k. W7 S. S
let j 3: T' A- }% a4 z) ?
let sum-money 0
7 X# @, h- Z. N, j5 d* n4 Xwhile[j < [trade-record-one-len] of myself]& M! x$ q' Y2 n! X0 B% ]: r/ n
[2 E& B0 f3 B+ O( y1 o
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)3 V c7 j% ^( P
set j3 a [, i* s1 X2 Q9 {' R; K7 P
( j + 1)% m+ Z5 S! L8 Z6 a; r! Z7 O$ N; {
]
: b# K: f8 R4 |5 n+ @, a$ ~let k 3* D% N+ j4 E3 F0 y! u) V& U/ d0 @4 H
let power 09 v! i& P- J- ?9 ~7 u
let local 0% ?, }1 N' U- _( ~& D* x1 d
while [k <[trade-record-one-len] of myself]7 K' ]1 j! x4 l+ w9 b
[- x! h9 `+ H/ x4 M1 _8 h" N) K
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)
0 V& d3 z) R' _+ P5 k& W4 rset k (k + 1)+ L( o% [9 t4 i( b/ W8 x
]
. ?6 G0 V9 R- E3 y* h& g* F2 _* Oset [local-reputation] of myself (local)
0 [! g5 h& [$ X/ {" l3 c9 i7 Kend
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to update-neighbor-total
! q7 t0 r+ Y% `2 ~7 d) T0 B5 Q7 h. E9 R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 S; y$ U6 a6 k0 O
# e# [( c7 q7 U
; j( W3 b m) Q6 n" Y7 Cend, ~% ?5 I$ q1 a% |
/ ?0 L+ R. L3 R- H, s# Y7 C. W
to update-credibility-ijl ( @& O. I$ J- x. J- |% \& r
" g Q4 a; w+ d8 f+ P% N$ 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。
( j& ^* i# D! J3 |3 [# [let l 0& T1 a+ `( e) M& @9 [
while[ l < people ]$ b h6 c' ~/ U- I% J( Q
;;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# g" f: J7 m$ S) Z2 \# n
[! \( \0 z3 ]1 [6 d- {
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 S, H: M! u+ L' E7 s0 Yif (trade-record-one-j-l-len > 3)
" ]" k; J% l) ?[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
) z- ~4 F. l, U) V" y N2 flet i 3
' r, u2 z/ r1 g' Blet sum-time 0
- c! c$ X: I: _* N2 w8 ]% qwhile[i < trade-record-one-len]
& [1 R, x; j# r2 _& o3 u# O; S[, K9 z$ d. M) R1 C5 U0 W
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% \" D" U, o! c1 H7 w( o9 @7 yset i
- O8 H+ q* |7 o) P+ c( i + 1)
O n* Z7 [, ]]) p$ r7 D. D5 k# X& v) }; C* w
let credibility-i-j-l 0' C& x* Q0 \' E, o; r: t
;;i评价(j对jl的评价). j* |2 h4 S8 f# f& |
let j 3% L: D' z! M; c: ^9 r( O, i
let k 43 d& [; [& ]3 r
while[j < trade-record-one-len], b3 P0 F9 `! h" F
[6 I& j( }" r; E' O/ }8 Q
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
& [; _! d; [& m' F& \% I5 [5 ?' C" Nset 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)$ L$ Q/ R7 U: \- Y: q6 N" Q( e
set j
' P" T, \" k4 g+ R9 V( j + 1)
9 g! q2 {4 v* b]
( p+ \/ w, z) Z$ y+ y( ~# H2 zset [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 )): ?$ \' v8 j- l
9 ~, A- l' ?$ Z# i" P2 w3 @4 |5 G
9 b9 e( j( L( `8 [
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ M V2 M7 l- o;;及时更新i对l的评价质量的评价
9 @, Y/ r7 d+ N+ kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; H# @7 I3 S. p5 D. A9 nset l (l + 1)
8 y* d I5 ]* _9 S]
j" a! D3 t' z; U& mend
3 v9 ?/ L7 G3 q* h6 y5 v* M& R7 ~) w2 W: k. F6 y9 J% r1 c
to update-credibility-list
8 y1 v2 t7 s8 ]- h% G) y3 dlet i 0
/ q9 |7 ~- [5 L6 r" r' ywhile[i < people]
1 @! S3 a' O8 ?[3 h! ^2 v1 @/ a) t& @
let j 0! i2 D4 \4 s& q" r8 \
let note 05 }% v) c+ F; i$ C, q p
let k 0, M2 K5 \3 w1 X+ q7 D' c$ O8 U! q
;;计作出过评价的邻居节点的数目
7 S# m8 F+ R9 g' M( o& _7 rwhile[j < people]
1 x6 O7 ?1 S) @! A7 m) d: r[3 R. M- L5 q) r$ w% s
if (item j( [credibility] of turtle (i + 1)) != -1)
* n1 ~: D& a" ]* g4 h( _( D;;判断是否给本turtle的评价质量做出过评价的节点4 {6 L3 M* `: n* G. j
[set note (note + item j ([credibility]of turtle (i + 1)))
1 j; l" g% Q$ [;;*(exp (-(people - 2)))/(people - 2))]
9 A# i( d9 W1 S4 r6 ~: M9 s& Eset k (k + 1)! l2 Y' _% R5 K) i, d7 s0 \
]
+ W6 t) R! L) yset j (j + 1)
$ [1 O$ ?0 d2 i8 F7 Q# q]
8 N) [0 c; ^- F+ @( cset note (note *(exp (- (1 / k)))/ k)+ I% F1 b. t' C
set credibility-list (replace-item i credibility-list note)+ e! ~( [ s9 W% ~ n0 L+ _
set i (i + 1)
# d3 |# Q, s$ n% B]
7 v) e7 A) y: G4 tend
% S* A6 U5 \' j0 _; h9 S1 P; O$ @( ?: Q( W v
to update-global-reputation-list# O: k; a; L9 r4 W' C9 C( S" B$ A
let j 0
6 f$ B" I7 D/ lwhile[j < people]4 Y2 U! ~5 h- i. H. S! Q
[
5 I6 T& n6 b& X. G" Mlet new 02 n% a6 K+ U2 N' I
;;暂存新的一个全局声誉1 s+ U7 r& i4 E8 R( z0 t4 w( b
let i 0+ }, M5 ^5 u# F- i1 ?8 O
let sum-money 0' }6 s0 p- Y$ h# c" k d8 k1 x% ~
let credibility-money 0 T& F* u; K0 [$ L" r
while [i < people]6 ^5 {. ^2 F( b
[* [: y6 E, s& z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). ]! A. w, f- K4 ?: K$ ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) l2 J/ E; f5 b, G8 O7 R7 Tset i (i + 1)1 i" C3 a, G0 T" F4 }# f
]; [( ]. f% M4 x! `: d7 X
let k 01 u) Q' M' \4 z" S: \9 N
let new1 0
% `0 q' w8 ?% n. I, ywhile [k < people], B; p* [& J2 U3 s5 f1 w% Y2 X4 D, {* S5 h
[$ i) ]7 B s0 E" S( w& _
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), }6 ^' N( f! t( b& q/ q4 b8 a
set k (k + 1)
5 I9 x# W: Y9 C8 ^# M2 i]0 ^$ P8 |, ?6 }) y& i* M
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & L1 v1 s1 J" O9 ?& {
set global-reputation-list (replace-item j global-reputation-list new)) b& |" n" ?; `% U# D0 c
set j (j + 1)
8 f2 s+ Q9 z. S, f' J5 p0 w/ E/ B9 f]
# G1 }2 f% C- h) k* Cend
) T* z" e! P0 Q* P. F# U
$ s& k( |6 u7 ^! ]) G4 _6 o2 R; F% \8 D8 p0 Y
, j' h" q; l0 x* X6 Bto get-color4 H5 _0 Z7 {/ R' ?4 K3 ~
' {0 z/ `( U! V! A+ W
set color blue0 ^" I( p0 u7 d4 s5 s& ]" r) d' t
end$ S9 d+ y" j% {6 t
' j# ? F; _; X V5 d
to poll-class
/ l( b* b, b+ e/ send
: d# M/ M# C N* R5 `: ^/ W% J8 `; k) G* { G0 i- m @6 D
to setup-plot1
5 E; l6 h% P; N( Z; V! a' z7 V9 k4 e
1 Y1 c' b6 v6 s, H. ^- hset-current-plot "Trends-of-Local-reputation", n1 G8 z7 Z( B& h
3 m U7 X) @& S4 N. e8 Lset-plot-x-range 0 xmax
! |* r _- R5 Z0 v. A* k# E+ I+ S2 T! d+ R! W. t
set-plot-y-range 0.0 ymax) a! R2 Q% _& p4 D' }- h3 ]- F9 S3 H
end
I& q* H# {8 A9 \
( Y+ `8 Z: q" mto setup-plot2
5 s9 g& n- ^+ K" K9 b5 U$ Y) t3 D: [0 _- p' h; w$ |
set-current-plot "Trends-of-global-reputation"
' r- {) L/ j" K3 ~4 Z+ l3 ~$ y
, m! H/ ? T' C6 ]: l* Tset-plot-x-range 0 xmax8 x1 M. i4 K4 B4 e3 \% E) [
2 ~/ i: v/ J1 K$ Fset-plot-y-range 0.0 ymax
2 m7 s, R) j+ fend" X& V- [2 p& T. ~: f
2 ~% M0 Q$ b% j( U; _$ {5 R$ g, Oto setup-plot38 r* X9 t( Q+ v$ @( [
; C: `1 |- k3 ?0 B* u4 U& m
set-current-plot "Trends-of-credibility"+ t4 y8 M% _# s
8 e( T1 ?3 S0 G% X4 h! P4 v/ Vset-plot-x-range 0 xmax) m" `& t( [* h% s7 i3 t
s6 P1 x8 b6 G5 Xset-plot-y-range 0.0 ymax
) D8 j) U3 |- l; _0 zend; G+ c, G. f7 L# T
1 W6 w) {/ t( r4 s
to do-plots1 [2 ]) o' A/ O6 _" i
set-current-plot "Trends-of-Local-reputation"
% @9 r5 Z+ u! N2 e; L. cset-current-plot-pen "Honest service"7 o/ F3 b6 b' H/ @7 P0 C
end( C9 ?6 F6 K9 D: l
* V: \9 J% c' B1 t6 Q, m[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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