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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 w5 `; R$ f6 l
globals[! Z( ~7 _0 i: R! c T3 K/ w
xmax$ i4 \( G/ ~5 h1 s, b3 U
ymax
7 s) v7 R# q! q) W; `global-reputation-list( q; d/ @' N# k3 L0 G
: S# g& a0 C' V, P8 z3 X4 S
;;每一个turtle的全局声誉都存在此LIST中
0 |% L8 h6 L o Pcredibility-list' n: p. z; v2 d( d0 M& D
;;每一个turtle的评价可信度
: k- o' s( D2 I; j: Hhonest-service
9 F" e$ h! @- funhonest-service/ ]+ E+ M( L- t1 F3 d# x
oscillation
0 g0 |1 |: Q. B) x! }0 C, p* Xrand-dynamic
S# @$ P4 G) ~! F) \- q2 [, K( @]
9 @+ F) z1 G3 L" [0 p) V( U: E' g% t. w" q9 e
turtles-own[
- s' X/ q' h4 h2 R! Ntrade-record-all
% l# l# p8 _ X0 M9 O% W;;a list of lists,由trade-record-one组成9 z. |1 K0 C, m
trade-record-one+ A# \* J' S! m4 M, Z: ~ p
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
: e4 o7 M3 c. N# M7 n K5 T5 M8 b4 J. ~
9 P4 h K5 c" o9 l ^" G;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
. u+ d' R/ J C$ Z- n: p6 ptrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]2 @' F* m# c( w8 \
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
! J _* B3 u7 }' |8 ]/ L5 O6 f3 V* \% \neighbor-total
1 g& ?; ~# z# I7 ?7 [;;记录该turtle的邻居节点的数目8 V5 x$ |8 N. B0 C% d$ t( J' {
trade-time. A3 _* C) |8 `' u' G9 `7 w
;;当前发生交易的turtle的交易时间
9 }9 D2 z5 L1 ?; d. r& Z/ {appraise-give: |: U6 y0 r* Y, }
;;当前发生交易时给出的评价
# a% | Q4 l& s) h- J9 r) p2 jappraise-receive
0 b) k d6 Q" F+ q2 g1 O! E& h5 H;;当前发生交易时收到的评价
( A% e M" Q* t6 y6 D% c- xappraise-time/ X/ ?, k' T+ ` C/ G# R/ s5 s
;;当前发生交易时的评价时间
+ |! o* {& Q$ K8 D1 v- r$ @, S) d8 ~8 Llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
! r$ \) C- X3 m* ^2 @0 q. Q& etrade-times-total
3 z1 e/ Z# W& G1 y7 \8 S& K;;与当前turtle的交易总次数) R7 c: F7 p Y X9 R+ m9 {! |2 |
trade-money-total
% w c: Q3 R! }+ O/ n% z! ?! X;;与当前turtle的交易总金额
* m1 p4 x7 R& P; ]local-reputation
% h& o g0 m! R: O V; P( C$ X- g; Fglobal-reputation
, b U6 @# |4 T; [1 Y g/ \credibility. @6 U2 V5 L" u3 F2 @" M
;;评价可信度,每次交易后都需要更新* w8 r# a6 q |" c+ {8 k+ Z
credibility-all
5 p( x4 P& M( g: k' H; J;;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; Z& T1 P/ n" n J
5 g0 @! V: 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0.5% {7 ^9 x, n" Z# v) w1 K1 T0 x5 ?: n
credibility-one
6 x! ]6 i. y% D( |# |2 x1 `;;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 x. Y- i$ @" T' M" }) C
global-proportion6 R2 R7 `& }8 T! A2 c; S9 f
customer8 r. K) Y8 [$ f" {! c& J3 b
customer-no
_! Z! J6 p2 ^% O( X0 Otrust-ok5 `- i' L$ a6 p; S4 ^3 i4 U6 [- K. j
trade-record-one-len;;trade-record-one的长度7 ^, s( J; [* T
]4 G/ F! o& S8 r' {- o
/ ]0 e% D" ]4 @" T# ?% v$ ?$ y- ?;;setup procedure
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to setup3 a d! u* B ~2 }: d! O" l9 l( d
3 |* p7 [1 D2 H& l0 [
ca# I( ^* q& a1 F
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initialize-settings
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crt people [setup-turtles]
1 M S+ H# f3 G* q I0 B6 b* o$ ^" ]7 k. P/ s
reset-timer
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poll-class; L2 S6 f; a3 A6 `- r9 C P2 s9 x
- \# \# e, ?* M
setup-plots
. `, {" `# n2 _& F4 e6 z& z H* J4 @7 V" O5 S
do-plots+ ?: a) ?8 v- g: |3 B4 D6 @
end
3 [; k- h. C8 A9 E, `$ Z: p$ T3 q% C
& R$ A/ b: t( _* e. Ato initialize-settings
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# W5 L# n( m; z" T. S! c1 l( F: gset global-reputation-list []5 d" E2 f$ u: h3 t8 O
% V% `, n: b3 |- @: G" m' Y- ^
set credibility-list n-values people [0.5]
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$ z+ W |3 U# m+ g( ~set honest-service 04 e3 n& T, g o
5 r u. K1 U/ d9 g/ C
set unhonest-service 0
3 S8 S" h! U1 V6 A5 n. i% Q% H# m7 G6 r
set oscillation 0* l. U0 J/ ?& K3 w
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set rand-dynamic 0
' F" d: y" m1 X3 cend
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6 s' \% m, Y7 T j& R) ~$ sto setup-turtles " I. q9 r: a. G( P' I" W
set shape "person"% {* \1 ^3 w2 D
setxy random-xcor random-ycor
/ W4 `8 q! V1 aset trade-record-one []8 z! g+ Z7 j0 e! T2 S4 I( C2 x: _
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set trade-record-all n-values people [(list (? + 1) 0 0)]
5 r' R# [0 v2 o* F. I5 F
4 C0 `2 m. c9 r: o1 [set trade-record-current []1 ~7 }2 z; Z& f
set credibility-receive []% Z' i7 K) b. m# [: R6 j H* R
set local-reputation 0.5
h9 }) Q4 k4 M" U: wset neighbor-total 0
6 h0 n" o/ P0 w$ Pset trade-times-total 0% ~# X1 u% Y) ~& `6 h7 S+ ~/ u
set trade-money-total 0
; T, ^2 c f# |set customer nobody
+ f' u L& y* D7 F/ h# oset credibility-all n-values people [creat-credibility]
% U% k# @6 n: Q8 w7 h; ?set credibility n-values people [-1]1 P N/ P$ J- I( b* o. O( l
get-color! V7 I7 n. @2 e* i* T( q# W) H
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end! e7 C- [, V) J: X
. O1 P5 T9 Z: x: A; Xto-report creat-credibility
( F1 R( A- V% Q9 A5 z3 y* Preport n-values people [0.5]
}7 E8 t# o) ?% V6 i5 u: i' P" Fend
8 y/ u j2 x1 t- Z( b0 P* G4 o& G# c/ m" B
to setup-plots
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6 L f! X) {6 [0 g( P1 D1 T6 ?set xmax 30$ F% m2 c, Q, y5 g
0 v: z1 |: H8 Q5 J, C) r p4 [$ h0 j* k
set ymax 1.0
& a V9 ?0 g @& Z2 u: }1 w
2 }. G6 e8 e* b) ?& N0 aclear-all-plots8 Q3 J! k3 v" R/ Q! I
; Z3 p/ c+ `# u3 V! `# O$ \setup-plot1+ {% A$ Q9 n5 b! q6 E' ]
. { D7 L9 K$ i* o9 g) S3 f- k6 jsetup-plot24 z5 E, M, W* O/ L
9 m( B1 m) o! m
setup-plot3
; @0 @9 T: j9 [" q( B( l# send
( {9 o- R4 F0 d6 c2 R. M- P# T
) G( X! a- y0 g7 _# ] v9 ^;;run time procedures4 @7 R1 q f2 @2 r# }
7 q s) ?1 b1 X6 O
to go
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$ z, |; R- G% r3 m6 gask turtles [do-business]3 y; t' H" s' g. M) i, A* d
end! n" Y5 T# x4 P- L
2 n" i. z1 m4 x, K. v+ H# b3 nto do-business
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/ b0 {# l. j7 \+ ?4 l. D6 V' p$ l' D$ z; }, p- R2 [3 ^( S' F
rt random 360
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fd 11 b* a5 V' ?2 C4 p9 B9 w% w' u
S& C K2 E3 T: kifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here6 s7 y. @: k* R! _# U R
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)% |0 C7 s4 W; b/ [# |+ k) P+ V
[trade-record-all]of self. O, f; R* ?/ e$ H( r1 ]+ M) }
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. i" u0 P1 e8 b, Q4 {2 t u
; o: o8 u' K0 r: Fset [trade-record-one] of customer item (([who] of self) - 1)
! P& q5 W9 {. p, r) G6 q[trade-record-all]of customer# Y+ ]5 ?0 p9 @. L, d# j
; [- y" C1 g- R. n, |% r& y
set [trade-record-one-len] of self length [trade-record-one] of self& [3 K9 e! H0 f2 G
3 |6 W- r |# b* jset trade-record-current( list (timer) (random money-upper-limit))
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6 K2 V5 A4 u2 `. C- _: m4 sask self [do-trust]
8 H" h4 Z, x0 t4 ~! v;;先求i对j的信任度
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% [3 x, T+ M+ ]8 o! Y( t% {. @6 Kif ([trust-ok] of self)9 C# b. r- f( a& Q9 g; C
;;根据i对j的信任度来决定是否与j进行交易[
5 z. t6 _; f" ~+ y0 Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 t' e/ B. _- a4 w y$ b! Y
. {4 a) }: B) o[
% X% o/ O) h& j& x( ]6 `9 R5 I7 }. u9 {1 C
do-trade1 i' r! W+ n8 L; C% b
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update-credibility-ijl+ z# G5 ^% [. T A
$ i8 _' g( g3 s- c& J hupdate-credibility-list
* U* \) Y1 K* I9 C9 J0 \. v2 j, T% M4 W- H U
( ]+ X+ j( B' u; F/ S) _
update-global-reputation-list
! L+ W' I; U* b( z8 h1 q* V8 ]
2 s) O' m$ N2 D$ ^6 \% l' [9 zpoll-class$ `' W# u5 X( {0 W9 I: w
6 y, K4 f3 u0 G5 e% S
get-color
3 v1 N7 v8 E8 E' V2 { y; g* L e) R6 Y
]]
4 A# i- M$ ^" E2 I
/ s+ T7 ?5 n& Q/ S6 W* }% N$ o;;如果所得的信任度满足条件,则进行交易
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5 ~2 h6 P' k) b0 [+ u[
0 d8 j( ]. ~1 ?* }2 g& M! N9 v+ p: |
rt random 3601 T+ A4 ^2 V) c7 ?) N
9 j7 ]- a" _: [
fd 1
7 R/ I" G+ t" l. x* m
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# Q" k/ j9 L# q/ V
end T4 r& D9 Y7 h- p7 J
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to do-trust
- s1 S2 C) [7 Eset trust-ok False; L3 n& m2 x$ X9 p
) V+ I' s0 J- b/ x9 J0 {- X) [9 G: |- [4 y, `/ f3 J
let max-trade-times 0 H, e% n' |/ Q' J5 R" M0 }
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 o2 D+ L8 K+ P4 F: Blet max-trade-money 0
: h* ^) F% i9 h+ n+ B0 zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 A2 @% \( I& o7 Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
V0 s8 t6 n' s: `* w* n! s# u3 O& M1 ]3 w2 t
6 w2 g/ H* ]6 O8 t3 q$ @8 e4 M
get-global-proportion6 X, c" {! [$ z# j
let trust-value
& l7 |! v" p5 r# Clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)* O) A8 E9 `0 I& v
if(trust-value > trade-trust-value)
0 V% L0 J- T! O[set trust-ok true]" E3 v# ~! L0 l( h/ d% d8 c4 J
end" q1 z) x6 a4 z# ^. _) z) [5 ]
' ~! E; }4 W. o% `6 I1 Cto get-global-proportion! m9 X$ K9 h2 C) {) c5 v% p5 [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
; T3 x5 ^$ P2 B1 e[set global-proportion 0]/ e1 M/ q. n# T$ d
[let i 0
7 t5 x* D9 w* n, q! `2 l Hlet sum-money 0
, Y+ j' r, _. awhile[ i < people]
' @& h6 }8 z, I2 P$ w. G: ?6 W# j[
3 ?) T- M1 p: {$ }! E: }if( length (item i
: V& ]) E9 D# f/ t0 @4 {/ V[trade-record-all] of customer) > 3 )0 u7 ~6 B$ I; m
[( y4 K$ p0 a( G; j! i t# e/ w: ^8 q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 V, f8 I8 E" r- ~- Q
]% {: x" a" o ?4 N% r" f
]& a9 M! X& x+ \! ?6 q5 c' @
let j 0
5 L. P1 [# z. v6 @let note 0
* h. R: V E& i$ L) jwhile[ j < people]4 s% R% m3 p; ^9 l1 c1 T
[
) L2 f* f' u' ]8 u! {. `$ w* U! \/ `if( length (item i
5 z2 {4 ^: `/ q, z3 u( l0 N$ \9 O6 A[trade-record-all] of customer) > 3 )& N$ j0 k% r2 ?0 c' y1 y2 c
[
/ _# h# r/ p2 R8 e# yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 f5 ]& `4 E. r; R/ {/ z* n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ y7 V& i `3 D: c, h6 z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 x8 D6 X9 H: G0 l W]
2 @$ W8 F3 p3 }( x) j& H0 D]
1 t h2 G# H n h3 l; [6 Nset global-proportion note5 d& }9 R& D5 H2 `- @( ?
]" `4 V( D9 J8 ^$ A# R. m
end
# S5 ~6 k# _3 E: r4 Q* P( W, j9 o$ J3 S
to do-trade
$ K7 m/ Z: h7 E1 y- d9 F. _;;这个过程实际上是给双方作出评价的过程7 k. W3 }& H7 X$ v c# F+ |' i; j+ k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 Z7 I; }8 f/ [/ l% S3 i9 \' g# W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( m4 D' O( w' s
set trade-record-current lput(timer) trade-record-current
# }* K6 H W3 U/ b7 p;;评价时间
5 j4 b7 w/ Y5 ~) x6 task myself [
?, a" ` j' @2 w3 jupdate-local-reputation
% i6 l7 f g+ j G: aset trade-record-current lput([local-reputation] of myself) trade-record-current k% Z$ R! y+ H, A' L
]
( k* u6 i% S" S% y. X( ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 f$ N8 U& t+ A: u;;将此次交易的记录加入到trade-record-one中
* q. o5 ^7 X' {1 R( O5 i Nset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 \; M# D" e3 R8 V! Mlet note (item 2 trade-record-current )6 L9 Q8 G3 m" D
set trade-record-current
/ N- P' V- [5 P: L(replace-item 2 trade-record-current (item 3 trade-record-current))& k4 b0 {+ D" `5 S
set trade-record-current; s7 j. I: R$ n/ t8 T: W1 L8 i
(replace-item 3 trade-record-current note)' a1 ]6 n( O8 U) ` N* w
+ U3 s$ O" J3 K: {3 w* w
9 x# A9 I$ G0 E9 B
ask customer [
0 \7 L W/ J& m8 w) @update-local-reputation' w& y; t Y" ]: b& P9 m
set trade-record-current
n0 n) s% o. E' s" _(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 c0 E( z( s% X$ A/ L( ]9 `. d
& }1 I4 a, K/ ~3 c$ i3 y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): f$ \2 [ b6 H, `- c) e6 l
;;将此次交易的记录加入到customer的trade-record-all中
! r' y+ Z7 ?, o7 E. g( U$ U" ^end; k' b# ~% t1 y! z9 e( M! w! [+ y
: S. i! S3 E! S* `. ~
to update-local-reputation
; w2 l$ Y1 P! l0 x% z9 p/ dset [trade-record-one-len] of myself length [trade-record-one] of myself
4 c, g; c e7 X5 \% B( O' z
. [1 t$ b) v5 [4 Z9 o. W2 Z: Q4 G
' t; ~3 O4 V. e;;if [trade-record-one-len] of myself > 3
% o) h' M1 ?8 Yupdate-neighbor-total
& ^8 J4 I2 w4 i9 X$ I: Q: o;;更新邻居节点的数目,在此进行
, R- N8 U' [- R' H3 Slet i 3
A7 }) ?* p7 Q) u" ilet sum-time 0
_: `8 g/ w' B3 C8 ~while[i < [trade-record-one-len] of myself]0 e; Q) p6 y( o5 v K
[
) e- Z) c) w& P1 P: @# C) D" Xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 r; O0 s) _- W) @* o! o1 N Tset i
. ?4 I _8 G# r) x. `* _# y( i + 1)8 z- a8 ^/ {1 o0 _9 S" F
]
+ b0 E% R, z- {3 E- U. clet j 3; k: b/ F, p! \( R
let sum-money 0
6 m2 ?3 f; C: p; twhile[j < [trade-record-one-len] of myself]! L! \; F9 d, R
[1 S. Q7 `/ V1 x. X& B8 d0 R D7 H
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)
$ D9 \4 @( C# m8 S( C4 ]1 L, W/ nset j
7 l% B7 m# ]* R9 J Y3 m% t- ^ _( j + 1)/ C' s2 v; H( _8 e, |
]2 C- e) y G* ?
let k 3: o& [6 b4 U* L2 m
let power 03 C! w/ ]3 n9 M* ^# j
let local 0
0 V! q/ @7 B9 x0 |4 Jwhile [k <[trade-record-one-len] of myself]( e1 R* E, U( @4 N/ B- X" T
[
% K+ R6 V6 [% ?/ z' |# L; tset 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)
& T3 S, w' k6 y# P# A* U2 Z/ Yset k (k + 1)
' m I* ?/ V" U; }6 J! F N]! V S& q1 @1 w$ M
set [local-reputation] of myself (local)
" A, {0 y) H1 y2 I( {end1 ~% k' |& n2 s$ Z6 L/ D6 X& F
* t0 y! @. j* S/ r/ M% Yto update-neighbor-total
! M" c. Q1 f& |1 J5 I) c# I' c' @0 g& Z! I/ Q0 O/ d/ O
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ f# J. Z$ R9 f7 T- A" F* G1 z* @* G8 D$ [+ H' b
( r9 p9 `3 _5 ~/ o; X5 H4 G
end2 W/ A. ]2 J# `. A) E$ A- Q$ i
' Q! x( X& H s7 Hto update-credibility-ijl ; u5 E: A& l v# d2 Y& e
6 Q4 `' ?! S& l( ~ m5 H
;;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。
) S2 w5 ?( T) {9 H3 wlet l 0- M$ ~1 y) S# Y( J: X2 _
while[ l < people ]
3 U ?) ^2 b9 {$ k;;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; F& v+ ]2 u6 j$ _
[( q/ O) A6 X/ J$ ^1 a8 ^5 J; a$ O. i
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)' W: o& ^/ s# y& f# k) Q; G0 y ~
if (trade-record-one-j-l-len > 3)$ p5 @/ ~6 _1 D M: a7 k( U
[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% |/ t( K' D2 p n( F1 }+ z# X9 s
let i 3
0 r' b6 s0 ^- |let sum-time 09 M9 ?# ^7 E8 w9 v6 \/ R- P
while[i < trade-record-one-len]$ g; y0 m5 }* ?1 G! J8 Y
[
: V' e! U- ~* G( B% `) h! hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' A' N/ u+ j) P. D! b- m+ rset i
* E" c1 G' `$ z# s4 e/ x( i + 1)
. m3 K7 T8 _1 E6 Z/ f" L; S8 p, G]' V$ W% ]" z2 t9 Z; @ C
let credibility-i-j-l 0+ k# }+ R: U( q
;;i评价(j对jl的评价)
7 ]+ Q' T6 V& @2 u) zlet j 3; D9 | e, g) \% t# v4 I
let k 4
; N$ f8 k! l' Z& u0 kwhile[j < trade-record-one-len]
7 H6 `6 [% J) o! ~6 {) R/ v8 m[( s3 T* w* M% `2 F
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# y6 O" c) N) r- n O- w' {
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)
8 n" i* w( C8 I$ b, W2 c" C0 `set j; t/ U: T$ ~5 j8 L b7 h4 c
( j + 1)
3 I% q) `9 F$ }# M( H" E& [. []% _4 n9 q8 _3 p# {( R# H
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 ))/ n" p4 b: M; Q% P8 n, y
% a' Z( |; k9 }8 g1 X3 q7 i7 X+ w; A `; X! W0 O( T9 S
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; x7 h4 c' g5 p" u1 t;;及时更新i对l的评价质量的评价 Z& d" a4 [5 ] N+ e" [/ f) I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 x0 l( M9 U- N* k6 H4 H
set l (l + 1)! m# Z* q$ x; w' N
]
; R( @# r' n* f1 Zend
* r- \. i4 [/ t' L" v- ~$ z
' q/ Q& v& _/ }( G" d2 M2 ?3 ]to update-credibility-list' g2 L: y4 _ L* Z) Z7 S( q" k
let i 0
! R& e, M/ r+ s/ f6 uwhile[i < people]
4 c6 [. U" T# L; c0 o3 W( m[. _0 x: B- O) Q
let j 0
' F$ Z4 V% V. v/ w8 xlet note 0
. G3 r v( H# _let k 0
: G. c- m7 p( j3 @;;计作出过评价的邻居节点的数目6 |" G$ h* F' O+ w) o( L5 R7 X
while[j < people]
" t; I% q/ b+ {3 @& U0 `[
, ]; O) P4 P# Oif (item j( [credibility] of turtle (i + 1)) != -1)
* q: g l0 _9 i* b;;判断是否给本turtle的评价质量做出过评价的节点) E% A( G+ w% M" _8 k- W
[set note (note + item j ([credibility]of turtle (i + 1)))
$ G1 D: c6 ?7 C7 F6 B, _2 K0 X* D8 v;;*(exp (-(people - 2)))/(people - 2))]
7 O& I; ^! B2 u5 X% b4 Q6 l* ]2 eset k (k + 1)7 X5 H2 v. Y* ^: k) o
]
! v! y& t9 p9 G/ l* Zset j (j + 1)3 t( J0 W6 Z" {5 E8 w. Q
]
8 E3 D- {1 S4 j* Q9 w/ Lset note (note *(exp (- (1 / k)))/ k)
% G: k7 y% _0 R; Z! Kset credibility-list (replace-item i credibility-list note)6 F! l. p. a( j! i, v1 E
set i (i + 1)
, N7 t. ?$ S+ `- K. J8 v p]! E! O! [9 k( a+ s/ ]: k( b
end, M- v6 U) X+ C" F3 o
5 p5 x! m* E4 e! X+ k& Dto update-global-reputation-list/ \! X, I4 S0 o3 N% w" w( E
let j 0
$ t4 k+ b& s6 ^% ?" k% l) b: ^while[j < people], o2 W2 e" l. [( x# i
[
+ ]9 Y# K4 p3 n+ p6 k- rlet new 0- F, \& w0 }2 K: K
;;暂存新的一个全局声誉% V" v5 N7 o; T" `0 w' I- h
let i 02 X! Q6 j% g- [* P
let sum-money 0
2 e" Y# t9 e7 X* D9 g, F6 Wlet credibility-money 0
1 q- x' H) ]! X8 C! gwhile [i < people]
* X/ H9 `' |' t& ^[* c7 \* m' d" C% S) v C3 n
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* U" O+ b. M; ]% p5 I
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 h' G; P, ]5 p j( F8 x9 Jset i (i + 1)
: |) _$ Z. H0 X1 c0 x9 G]
+ a) f, t! ^* \7 d2 |. b; j! a slet k 0$ }) q0 G/ e# X A( B
let new1 0% F( l1 s! [$ U9 ~! P: B
while [k < people]& \3 |) j- E& Y$ c
[
& I0 {$ d1 G) j8 n4 h7 w+ l4 Hset 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 W/ |8 z, z- G; X+ d# H
set k (k + 1)
. o) Y- C7 b7 p$ k( b) d0 [0 m]: z; D& g% d' r) p5 i- j
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) h' }3 ~# r' E- F' w4 H# w; Yset global-reputation-list (replace-item j global-reputation-list new)& {* q9 X6 S2 n0 \0 y4 `+ H
set j (j + 1)( U1 t! y9 T2 X! V* }1 G
]. x* _5 o3 T8 Y! v$ \
end9 z% o3 V5 l+ F
7 ~) p- k. B, W q Z3 @) p# C7 z1 i1 ?1 `6 @6 S% _: u8 ]
+ A" Y, P' S1 H! F
to get-color
" T7 m- n# ]! } q4 e- F
4 J% b5 H) w1 \set color blue
0 i- `) Q' E, b% p) qend
) w5 r- f& m1 `
N' o; r1 Z7 G9 }5 X6 ?to poll-class
2 h) W7 p& |1 n& [. d& aend
7 I; w6 g3 m9 |/ ~* H" a- Z7 ^7 _8 P
to setup-plot1
; Y) k5 J0 p( a/ O! R0 A; b0 U) S+ ~1 Q8 j1 h
set-current-plot "Trends-of-Local-reputation"$ o1 ~8 a& T7 [' L* V8 z5 G
z3 N" A4 t) d% r7 i6 hset-plot-x-range 0 xmax
1 h" j: K4 g) V6 O, a
. `6 t; c: ]. ~6 Tset-plot-y-range 0.0 ymax, s% Y" _& L; d& {
end
Z- R& Q& J6 }9 {' G- E) o" O+ J1 l0 W$ G
to setup-plot20 c1 F6 k2 r3 d. C1 j/ B0 i: B
: {0 K; A, o" L- h& b5 C5 Qset-current-plot "Trends-of-global-reputation"7 b% o! K' _# n1 ?7 }$ c
- M9 {4 x0 \" [$ `set-plot-x-range 0 xmax
+ ^3 U2 ~: D6 A& A: S' B
& L1 F% K% e1 q& T& A6 A% Fset-plot-y-range 0.0 ymax) q$ r( N8 I* Y+ q9 y5 }
end6 J, u) o& b5 {% C0 C
) v& A( D. G$ G. V7 z+ S, Z% {! lto setup-plot3
) p( v3 l* `" B* @& `5 E0 A. j/ ^! p& Y7 k" u1 X9 ] B# u
set-current-plot "Trends-of-credibility"5 z& [6 ^3 D6 t$ b1 a1 z6 T" x
; N) T4 j" i8 X9 @4 o1 b) j$ [9 |* ]
set-plot-x-range 0 xmax6 D$ \, N+ ], |, I
3 T* `& t5 M3 c& kset-plot-y-range 0.0 ymax
/ e3 F) E0 ^! kend
& S% i* v' v' h7 [. ~0 T
3 G" E9 [$ M( Yto do-plots
$ K$ l6 _, w7 S) b0 E/ Kset-current-plot "Trends-of-Local-reputation"6 @# _; G1 r+ {% j' Z; f* o$ Z0 P
set-current-plot-pen "Honest service"
4 W6 t& B& w" a( e( h( o5 Aend
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4 y3 ?- h: [$ t. H( ^% V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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