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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& v% O. `" o2 Q4 G! `5 s
globals[
0 k4 V* t0 p- ]8 u6 s3 lxmax9 C- m' N% f8 |% D9 g$ p4 `
ymax
- @3 W9 D& ?7 `8 f9 Dglobal-reputation-list
$ R- c: [% r9 S' x0 p2 z, i3 g% i6 b( F4 s7 Y6 c
;;每一个turtle的全局声誉都存在此LIST中
% o' o: o7 \+ s ~6 c" H3 Gcredibility-list3 x1 h! @& y' @, U5 ~7 v) `
;;每一个turtle的评价可信度
7 d+ @( c, A$ F& c0 [7 ihonest-service
8 G/ }0 t1 |% k8 @* T) s( uunhonest-service2 T" p, \7 e2 e4 O8 @9 v
oscillation
/ E; [0 D7 `* J7 w& \: p9 U0 grand-dynamic
2 K/ ^& Y; g# U$ e], w4 U& T. ~6 ]# Z
2 D |0 N) s3 V! q4 U2 i
turtles-own[
, {5 W& r* Z( n+ `7 Mtrade-record-all- o: ~6 Y/ z, K
;;a list of lists,由trade-record-one组成
+ c% M# E; y3 ]7 Ktrade-record-one
) i2 ^3 J3 P5 z% `5 d, F* E9 `;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
5 e3 k0 R8 X# o8 B6 C- A7 `8 M$ \2 x* \, ~
;;[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]] s+ G! y( k( r( H& u
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]( x" m- B& @) ~
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
9 L' m: K# I! g6 @$ zneighbor-total
1 ^( z' i' S4 ~/ V1 i0 w;;记录该turtle的邻居节点的数目+ f6 K- ` h4 O+ \- W
trade-time
9 `( `% j* R- |( |# v6 V;;当前发生交易的turtle的交易时间' E; v, G* v" d# L8 r- A
appraise-give
: J" G2 x+ @) Q6 h& t* k/ k;;当前发生交易时给出的评价
4 [( ]" i. V c/ H/ i& w' V+ Eappraise-receive# B5 w, M1 |& O# B1 k' w( b- o* l0 r) q
;;当前发生交易时收到的评价
2 z3 P. R4 M( J5 z- x+ R" [appraise-time
3 Y6 p7 R7 ^6 }* I;;当前发生交易时的评价时间
' K, ~/ Y. }9 ^* ~9 K, Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
- L& @8 g. `+ ^" `; z2 Strade-times-total; X" ~4 J4 t; O4 ^$ l
;;与当前turtle的交易总次数8 N3 o0 j. Z; @- v5 h. a
trade-money-total1 Y* ^" @7 W# I" y
;;与当前turtle的交易总金额+ E: Z2 ]* ^, |; M M: W P
local-reputation G5 k5 j9 v# k$ q
global-reputation# l- ^0 j* |1 x- {- b* j: u# |
credibility7 Q% }2 o& Z" S- M& V
;;评价可信度,每次交易后都需要更新1 n1 P6 [+ Q5 G1 {/ g: N$ D. z
credibility-all
0 i1 L; D, I& ~4 y( d;;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
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9 P, n3 q. s% `% c, Q4 f;;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0.51 {! `" U8 p% e4 W% i/ v
credibility-one L+ R6 J8 z: x8 f6 E0 K
;;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0 p/ h! k7 q- X8 A3 R l3 x5 |
global-proportion
3 f6 B' R. J, {# Zcustomer* U9 u, `" u |) A1 G2 l
customer-no
- R0 N6 ^5 T" }( g; G, ptrust-ok
; L8 U, C9 \- n! |8 Btrade-record-one-len;;trade-record-one的长度; U' J: Z( @9 ]* h- X
]
4 l6 f0 v0 B7 V2 u
# V: {' X; H0 K0 q% L;;setup procedure
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to setup
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2 x3 S Y- ~& K# A# lca. ~) N" J% U: N* G- ^
% H5 A1 K0 M+ q+ ?) F( n" n
initialize-settings- U! C! Z4 y1 q" D# ~" Y
0 @' z+ T& @5 ^2 vcrt people [setup-turtles]3 s$ o( P4 J3 }3 e
% o4 L% ?% V- ]
reset-timer1 X5 ? u2 r7 Y
! Y( @+ z G" I2 R n1 x# Npoll-class& _7 Z. v. b( P7 m+ {
8 L1 q! @4 u p& z. t# Psetup-plots, C$ j% K6 a" k+ e4 D
7 ]: Z$ r5 ]+ E4 h/ S- `do-plots
% Z' E1 T$ d) x7 T) qend
: y" m) w/ p {- b9 v% Q8 Y6 I( V7 Y1 d# R0 l
to initialize-settings% T0 f+ ^2 \" v" U! `% p9 O% f( g8 E" D
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set global-reputation-list []
6 B* @1 k2 o( c+ h. o+ ]% @
' l8 A+ t: l' A1 f& X$ \1 Rset credibility-list n-values people [0.5]
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y% Y* |0 p+ m8 L* Aset honest-service 0
4 V7 m g# J9 F: n- U' R4 j7 s: f5 D/ a. p; Q
set unhonest-service 0% @% J f; o! O; G
4 I$ h0 C. F5 K; o$ \
set oscillation 0
3 ` p2 F. S3 A" ^$ c$ h
# r4 J; v9 r gset rand-dynamic 0. t8 G$ s0 i( J$ K4 c: m+ {
end
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to setup-turtles ' Y; l x7 h5 ?# w; b! M
set shape "person"* {- g. f: x! R
setxy random-xcor random-ycor
+ X' x/ o2 _' j, r/ Mset trade-record-one []
% @/ I) R, D; C, G$ c5 }
! N( J% M- a- \0 V# kset trade-record-all n-values people [(list (? + 1) 0 0)]
9 B0 l A$ P" @4 S; G: e" z) R. ~' o; v& r$ U t9 M4 U- ?
set trade-record-current []
; R x9 [# N% z5 e" T/ k) Qset credibility-receive []2 m K* ?8 v, |* _
set local-reputation 0.5
1 T0 b4 W f7 n- iset neighbor-total 0+ E0 W/ w/ x$ E1 B, H
set trade-times-total 0
) n6 g7 L8 s' j& x: b7 |" B" G" m1 uset trade-money-total 0) O1 a' U( U7 a7 U$ u
set customer nobody6 o! y, J4 s6 v- \
set credibility-all n-values people [creat-credibility]7 y* V+ I+ d& W' R0 Y
set credibility n-values people [-1]
5 P4 q/ X% Z3 Y# v9 R8 R8 iget-color$ C/ C/ e2 N. l
( q$ M6 D8 q& j, m* `end, u) c# S5 {$ C: L7 P4 O1 J8 F; i
* V9 [0 H9 n6 _9 m: q2 j& Eto-report creat-credibility
) z0 q& | q& s5 a$ ?1 J& oreport n-values people [0.5]
) k6 m, Y, X$ w) T1 dend. d% j9 ` p9 J$ N. b3 M7 l
3 Z# I3 J+ g& Y: p) v; X+ Wto setup-plots6 x' L* L5 `& U; t6 M9 d
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set xmax 306 J% l* d5 [3 f2 r3 k5 f; o6 p
! S( y% i: f: ]9 K* U, ^set ymax 1.0
, ~7 R3 W) ^. G; y2 _! Q
: m! f" v+ Z8 L, Bclear-all-plots+ N, W/ n5 |. v
% f# A/ n$ S @9 K |# k, ]6 X& v
setup-plot1
; g9 N! w& Y! d) ?0 V% Z% ^$ |- G7 I" D. X
setup-plot2
5 ?. t& b, C0 v; e c3 x7 c4 k( r; F8 D1 z2 M, h/ w9 W( c3 }
setup-plot3
7 ?8 _- L" k9 V1 @& }9 fend
8 m1 [9 r- h/ s. Q; K8 U
1 }9 q& c! \# ^* {+ t;;run time procedures
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; M( b: D2 S! I# C/ i! `to go6 b" g a# z8 u m' a
1 Z& D% W) g! N6 E' W: B+ Sask turtles [do-business]4 p: i4 Q6 }, s J l) U
end
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1 T/ l* ]' W( v+ Wto do-business
, @6 t! m3 e1 z$ Y; P5 {8 h+ r5 ^$ C8 J
2 M" R7 B7 [. f/ U
rt random 360# M, Z. w6 E9 E9 ^1 e
: ~; u: h @ O1 v) @) @9 m# K$ _fd 12 R7 I% C, V4 R1 E \4 r
1 _! S' R7 X- Q9 l. `ifelse(other turtles-here != nobody)[
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/ a% M, E* C$ |6 f5 c1 eset customer one-of other turtles-here
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; t4 m3 X6 U2 A2 F;; set [customer] of customer myself$ {: u' I8 ~* X5 W( Y+ c
, z4 c+ _( O0 z6 D/ u7 k
set [trade-record-one] of self item (([who] of customer) - 1)0 c. n. |8 u3 L% b" K5 Q; A
[trade-record-all]of self
. i) b8 s1 v. o- j, c+ V;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
8 ~1 c8 C8 C# C8 R9 `, _7 y
6 U* w' N# N$ m$ z6 ~! xset [trade-record-one] of customer item (([who] of self) - 1). d1 i& B; j' |! S5 S5 G/ ]8 c
[trade-record-all]of customer
4 T" @4 y( B3 S# Q1 N7 l) d
0 _$ V1 D6 r, K- L/ `2 pset [trade-record-one-len] of self length [trade-record-one] of self
+ [1 ?/ R- {+ ~: h+ {4 n* u; E' Z [/ v; z. o5 V1 F- h' G3 G
set trade-record-current( list (timer) (random money-upper-limit))
5 C: k, C; h" W J3 m1 m2 Q' q3 G7 [& z3 E6 e
ask self [do-trust]
# H$ D& V* h; l/ V" j1 t;;先求i对j的信任度/ b- |$ q2 \6 x
; M6 p/ q' ]! A# h
if ([trust-ok] of self)
7 S1 u' }- J9 E;;根据i对j的信任度来决定是否与j进行交易[: U) }' i1 Q1 f- Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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do-trade7 q' F9 t$ U. j) U
) N( ]) `5 q E
update-credibility-ijl
% I/ I& \* J% N j' i8 `0 z% m X6 w% |6 S% v. I0 l- E; z4 [
update-credibility-list
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+ h/ f/ h) \& V1 r3 T; q
5 O3 p. u$ ]/ Y' a( {update-global-reputation-list
$ Z' F! m4 t2 L8 R2 m
1 B; X& N. I5 J. ~. m$ v- {) T8 F( o" cpoll-class; E8 R t. k \+ s1 D3 Z! ?
' N" Z- z- e2 g: C' [, [
get-color# i3 C+ p. Z* |. r
; a& A; ~( x# }
]]
7 O* [8 [7 U' `0 j- q9 U3 j
5 e2 g4 t7 k) I& i6 v6 ]# L3 L! [;;如果所得的信任度满足条件,则进行交易
5 f* Z/ x9 j$ u3 M5 z
0 l4 @& E$ }8 Q- B3 O[
* s' M, J, s% d* u: H
_4 E7 i/ n9 ~- q: J3 irt random 360 ^4 A1 w: `4 u5 i- P: A5 d
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fd 1; o# @3 F: _7 J4 V, M( I
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5 V8 a* ~9 _ P& H: W% P/ r
end
: N9 c& j+ g+ N% V& R; |; V5 f1 R% Z0 l; y: ?
to do-trust $ _! u# r$ J; G& u9 ]6 y
set trust-ok False
( |& w' ~+ R0 F, V' P$ g" @- H6 [/ q4 d1 U
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let max-trade-times 08 f: C+ G1 ?- P; g
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 J. G* r2 j! u8 \
let max-trade-money 00 |1 p1 k' T0 e% ?% {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ G: J' p' A9 C3 i8 p" _let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" ?8 j, @; ?2 \: G% K, g
) \2 o# i" v* ~) U2 O
6 T% N4 H5 u+ Y) P1 cget-global-proportion6 W0 @4 q' k7 E& }, f' h- ] Y2 v% V
let trust-value
: A' m7 w7 n# N: L8 ~! @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)& N2 L1 E3 A, V
if(trust-value > trade-trust-value)
/ O& _( v0 O9 E# k/ K[set trust-ok true]7 O( U4 @6 m/ `* a4 ]$ x. P; ?: M. R
end
& t# c3 w3 g4 F3 @) r' J/ N% q# C. A+ f4 }
to get-global-proportion
l8 A6 Y2 D/ X+ R c4 h% [3 _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" X+ D' d% S! s0 u* S9 W' {! q8 N; Q) E
[set global-proportion 0]
0 G% M, r0 ?) H- X H[let i 0
& t: u2 t9 v% B( I& t' ~! Slet sum-money 0 t5 b- b) n0 d# i' T* f5 I
while[ i < people]
0 C* V, b; z! @3 z6 o[
6 E9 C% ?* {0 S: D5 x& I6 C8 \if( length (item i" [: L) y, c4 w4 q
[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 p; v2 r. Z9 o( H+ P]
) t; O3 w) u" _+ g+ \5 S]0 n; e, x2 y2 H6 \
let j 0
3 q/ N( R, [' B0 [9 Ulet note 06 s5 t2 T8 w8 P9 T" r( `
while[ j < people]% G$ H4 N5 g' s$ k8 v% h2 y
[) Q9 B; h" O$ B$ k, e& R/ s" j
if( length (item i( M5 i8 V' L8 k0 p1 f" j6 G
[trade-record-all] of customer) > 3 )
" f& E0 S5 K) P[+ K# _6 k1 h/ J3 [9 a/ p! g0 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 N1 ?% E! K" s8 S5 d2 l[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( r3 _+ [- b9 c {* M% ^# Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% v. j/ Z7 }5 ~) U. c- m: V
]4 k5 S+ O6 ]% C% V& n$ Y0 U
]
# w: I2 @& S9 Y; A# L# x) ^set global-proportion note
+ y: n# y& A; I% b# d7 d/ m]
9 L- g/ |. n, R6 _+ M; zend. h R0 P9 }! ^3 }- @
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to do-trade! S! ^/ h3 ?; z- B5 C8 T6 M" B
;;这个过程实际上是给双方作出评价的过程
. {! A+ h% h# J- M1 gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& r g9 g* g# z& `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( I0 U- n2 g" A
set trade-record-current lput(timer) trade-record-current; W2 b' g6 A6 n( {
;;评价时间4 \6 W' Z# x! l. d
ask myself [$ @" D9 w1 X2 x2 y" a1 [! |
update-local-reputation
2 M' ~- h. }2 z. {: Rset trade-record-current lput([local-reputation] of myself) trade-record-current/ \( C2 l7 a F0 o" V2 I
]
+ v" W M! M1 H0 J3 y4 t/ wset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 p7 P8 @/ l2 {" ^
;;将此次交易的记录加入到trade-record-one中
; d: U2 N1 ~, ?* ~set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% \) [1 P$ o! ^, ? P! b: H& llet note (item 2 trade-record-current )
6 s; `5 H& O7 b5 Uset trade-record-current& o& C1 f6 Q" D' ]+ T
(replace-item 2 trade-record-current (item 3 trade-record-current))5 t/ Z, N8 p9 p' ~
set trade-record-current
* a: z4 I8 k# u7 n; ?& ~; H(replace-item 3 trade-record-current note)6 \9 n4 _( X9 h: N
4 Q0 ` o6 E8 v
4 u* V; p, q) V/ \$ D5 `% jask customer [* E4 \4 p* e. c
update-local-reputation+ z2 Y i! Z9 }! F+ }$ ]- ?
set trade-record-current
$ h' j. h! N' g$ Y/ T# i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) G) ~0 _- l2 p' P: O. W8 x. _% B
]" G) Q, n; h) \9 K: ~ s& b
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, W! i+ N; @; v- W( J4 n7 P
W- Q9 w" T0 i/ [5 i1 Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ f2 K. Q2 j, k8 {% J
;;将此次交易的记录加入到customer的trade-record-all中3 e9 d: M4 a+ K7 d8 z" n
end9 K4 E% d" g- I9 Y7 |. T& {" F* O" U
0 ~4 ~% Y% ^) W/ K# N$ }6 f
to update-local-reputation
_ L) W) u, {, C! g" Jset [trade-record-one-len] of myself length [trade-record-one] of myself i" ]# g3 Y3 a* ?
2 _& m5 D3 u6 {: F9 u9 D
4 s: E6 y9 R+ {1 f* o: ~
;;if [trade-record-one-len] of myself > 3 9 E8 C! K& Y* `8 w) p* K
update-neighbor-total
9 |! ?. s/ v% _! i1 j;;更新邻居节点的数目,在此进行7 U6 s# p' J- [- U
let i 3
2 O2 e+ w$ b. U; ?7 `/ s' R3 ]4 plet sum-time 02 X3 S1 F9 a+ W+ s/ M$ L
while[i < [trade-record-one-len] of myself]4 Q% E! l& L5 B8 ]' @& A
[
3 A1 ^: r) e1 D' ]1 U; rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; M6 q1 k/ F, _set i
& Q4 x- l2 R* Z$ z2 O( i + 1)( M! F0 `* q2 w+ W9 B/ J
]0 X! y( |+ Z: d3 P4 ~
let j 3
/ N" C1 E- a7 m( D# i+ z0 n5 Olet sum-money 0; m$ [; Y, V- Q6 {- J
while[j < [trade-record-one-len] of myself]$ R5 R" Y7 L6 R
[
0 w; U- @" L: fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
0 d ^" L( j& zset j8 R6 b2 C) f; N& K) J
( j + 1)
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let k 3! h3 G& b4 o- b* V9 D2 F' o: N
let power 0
! g' }4 Z8 f# `4 G) Q% e Mlet local 0
9 y( ^9 Q( p! b* D* |$ [while [k <[trade-record-one-len] of myself]' T9 S. z' J7 x! S* z6 u7 x: H
[4 A: b1 d# q' J( Z
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)
2 o0 I* r) K0 ?( H" L/ i9 `set k (k + 1)$ ]4 g7 m: N; @4 e
]! ?6 S$ k, x8 \, n5 ?
set [local-reputation] of myself (local)
$ a1 X0 ~. a- a- J7 V* C, }9 rend1 M, t# y+ C' ?7 n# b1 s% l" D$ o
6 y$ z1 |' g" A' @# @, a; A; Yto update-neighbor-total9 J8 p4 \- K# p
7 ?' D" K% @+ R6 w% V. c+ ~& b
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! w) q w7 U+ B# g
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2 S) O8 f: a7 l; M3 gend0 w1 h* a( f% K5 }
4 k2 {; z, x" u4 Gto update-credibility-ijl / a6 L9 X/ X: }+ T
3 K' n( O% x. U7 ^6 E
;;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。- h; d5 ~7 {4 D
let l 08 z- z$ |. n1 n+ v) S5 ]: t
while[ l < people ]; [2 q0 r1 d! A1 n3 r3 S# W- M# 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6 [7 x, ]7 z/ r1 `" A* p
[2 ~ @# v! S5 d. [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 j- y& R* e4 g! qif (trade-record-one-j-l-len > 3)* H, O- i, f( P
[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
9 y% s* T" I3 K7 H! Y$ Ilet i 3
* k5 A5 n. e9 n( U/ {9 D8 Jlet sum-time 08 I& y1 u1 s+ N( l# P( i9 p8 a
while[i < trade-record-one-len]/ P6 v/ G( k( P# r5 n) T2 ~
[
+ V3 }0 L+ b4 p, ~# }3 F& d6 a/ aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* B; v5 Q! s" s' D x
set i
9 c, h2 T) E- ?( i + 1)
8 _ o E$ C! l% C8 q4 m; P, k]. H( o' G1 W3 s' \
let credibility-i-j-l 0) C3 z6 k: X% W* c, _; N
;;i评价(j对jl的评价)& a1 \: L& x, K4 d
let j 3
& O5 N+ f( y! g X$ S, ^9 rlet k 4
$ R; B2 _' {+ y+ ]0 r. Y1 ]while[j < trade-record-one-len], z6 F$ h$ N% u2 a
[
7 x. H5 _( R9 B$ M& ~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
4 e, L' t5 `5 l1 Wset 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)
% R# T4 D r2 @& l- H$ O* eset j% L( |6 N' z2 |! j# S
( j + 1)& q, `5 ^2 z. g+ H
]
: g& S8 d4 H3 ]& Jset [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 ))+ K% K; U8 h" u
+ X9 B$ z5 L) a& a* D
3 f7 h8 d- B s; L, Z# e* Tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" p: w, @8 ~) N, D1 h+ |/ ];;及时更新i对l的评价质量的评价
) ?7 Y, C' l" n( T' ?set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 U: X4 Q# R' Z. {5 Z6 jset l (l + 1)6 L1 `! B# I9 K* R
]" }2 L* x7 C2 r7 o& v
end* K/ v H+ \( b/ W6 m8 Y
|. {% Q# E7 [- g8 jto update-credibility-list
* K+ V2 l9 o7 b, U, Dlet i 0# P! Q$ u Z: |7 |2 q
while[i < people]: `$ L9 n2 J1 H/ u, Y
[7 m" K' E4 \+ j" o
let j 06 Q% D0 u- p/ H9 p
let note 0
# x# D0 v# p" d9 o2 Rlet k 07 v% e; ~! {2 {
;;计作出过评价的邻居节点的数目
- h f& u) x* [# i3 `, u% @- Y6 t+ zwhile[j < people]8 y4 D1 M+ x3 j* X, k5 k
[
, b# Y2 N7 B' j3 y. O5 q# g* eif (item j( [credibility] of turtle (i + 1)) != -1)% @8 g Q. q( Q
;;判断是否给本turtle的评价质量做出过评价的节点
/ b. O; p! O+ ]3 ~& C, o6 k[set note (note + item j ([credibility]of turtle (i + 1)))
/ Q# ^! N2 n; P; u' a) b;;*(exp (-(people - 2)))/(people - 2))]6 E- f& a# s& V' Q/ c5 N
set k (k + 1)% R2 U# C2 z y# _
]
' c3 o' Y9 X; N4 P9 iset j (j + 1)- P# h6 Z! G+ x
]! ]% A- F2 M4 P, \1 p# D' J
set note (note *(exp (- (1 / k)))/ k)
. A/ O0 q8 E; lset credibility-list (replace-item i credibility-list note)0 T- ~8 w9 f \2 O$ G
set i (i + 1)
) U/ B1 h6 C9 u* B9 N]
: X; b6 X k- |3 g9 Rend
3 a7 x z& C6 t, |0 s3 |
. b' O: k9 N0 b; Xto update-global-reputation-list7 F" Z; `; X6 S% p
let j 0
; x3 a! A. ?; @6 @while[j < people]3 P" w, p% L" m% q( A
[
! M* X+ B9 x) m$ }. Zlet new 0
- u; T1 r* @( h;;暂存新的一个全局声誉, b& A) A. w, T( a
let i 0
, Q9 ^6 l" Y* L2 v8 Z% p5 \let sum-money 0
8 _/ J( X' x" g+ n# llet credibility-money 0; l$ H5 |5 P, B
while [i < people]
& F0 U* }9 \) \" Q. S* D[$ L" W; D$ D' k1 C0 K$ T1 \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 v; M. K* G2 w% }9 I8 Z4 t, ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( O0 t8 D+ E; ~1 G
set i (i + 1)7 c9 ]9 H' E) ?( S) c! C: n- e
]
0 i1 D! \: a1 |7 @+ vlet k 0
. B: k* y. p8 `6 Hlet new1 0
' S# y8 H1 `5 M3 B% Kwhile [k < people]+ g7 `0 ]; `) m
[
/ c+ e I; |' Fset 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: n2 v, ?5 b" r& i
set k (k + 1)
) v p+ m& ]. i* |8 U. d]& H, k8 y2 U( r3 f* O4 W
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 h& S1 U8 G. f( o; X) Y/ o
set global-reputation-list (replace-item j global-reputation-list new), u* _1 R& |- y5 b t. v
set j (j + 1)
- c. A& H1 q* k8 Y @! _7 i]
1 H. u& ^; S3 u" T% j* wend, ^1 f- \/ z9 N
. I5 N$ h8 K3 `5 D
- B5 V! {! s1 m, s9 T
8 Y9 D, B8 s5 E3 v( Y: i$ mto get-color# d6 h! b0 p( d* Z. Q1 V
" h$ _$ C. \2 t! C* P
set color blue
" f2 v! \0 e) ~0 W9 F1 A i3 T0 \end1 b) C, F0 a* i. y
& L7 h7 P4 X; I: W) R5 Xto poll-class2 ?6 e( c! K( e; b/ p- o
end! o. k6 C6 `1 z3 z/ h
% M6 ~, o- I3 B1 w* fto setup-plot17 i2 Z$ P! B, O# h i& c. s
2 u+ h T4 |: S6 g1 f7 O' ]2 X2 Y8 gset-current-plot "Trends-of-Local-reputation"0 Z, s& M o# h2 E/ v- g
; ~* }/ x# \4 c7 s
set-plot-x-range 0 xmax
( F5 h; L. O. Y; q. U! T) C
, c2 j% d9 \8 v" L' ^ N1 xset-plot-y-range 0.0 ymax* F: \/ E* s8 O
end
N' |6 N$ e/ [+ S+ }* {- U6 ~+ q5 S7 T$ w
to setup-plot2
# c9 k, M$ U! n% y& C/ {' Z% T' ~1 M! g; L' I# {4 v7 h! O3 s
set-current-plot "Trends-of-global-reputation"
$ w2 I9 B' ]( z( ^4 D1 [
2 g- ?' |8 F, Q3 Kset-plot-x-range 0 xmax" [% I0 L4 u% y0 C( |
! y* u u5 d- p' n9 E- x
set-plot-y-range 0.0 ymax3 p. A' Y( v- S9 V
end5 z( c3 n7 t# K
2 |/ H% \$ U" e1 N8 J5 L
to setup-plot3
, N* M( Q) W6 a* X- A9 T+ l; P- g6 o
set-current-plot "Trends-of-credibility"
. }$ g. E& @' W% m
; \5 c4 I0 ?! C A U+ Lset-plot-x-range 0 xmax* T5 t% }4 } M; R$ t D
7 p3 I5 d& b; ~) ?
set-plot-y-range 0.0 ymax- B( ~3 o3 R- M
end: }0 {& I, S Z2 w( o
' z/ Z) B# m2 Z3 X
to do-plots
1 w/ P5 {4 W! c! C0 p T. q( Vset-current-plot "Trends-of-Local-reputation"
" D8 O. p( i$ v# D( \set-current-plot-pen "Honest service"
/ [+ ^$ V! |$ K0 L% Rend# v. E4 h `- K u: F X
/ R5 K! `+ Q7 @* V' w% s[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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