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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
" N2 E2 A9 H5 b [3 lglobals[9 b a( V) F: j3 w$ g/ i, [
xmax
( l' J, ~- [: O3 x0 x* Hymax
* v9 ^7 z) o0 m- Z: J% wglobal-reputation-list
& x [9 @2 }9 I9 r2 U5 z( u1 a: B' C% g f, m& x) d% G! k
;;每一个turtle的全局声誉都存在此LIST中* Z5 j5 n5 J2 N0 D' H+ d' J
credibility-list
, P4 N/ z. R8 I' p, Z w;;每一个turtle的评价可信度6 [0 I- d' V& U! k. q
honest-service5 B8 Q2 E6 C5 M; {2 n% I5 s
unhonest-service) f1 [! ~9 t4 V, X9 f5 j/ p: |
oscillation
, W- Q1 a4 s: I! e9 } hrand-dynamic. @0 ^+ h- s0 {
]5 A' B* ?2 E+ N) k; h
) y9 {! R& Y: d+ }8 T
turtles-own[- f- j. J& s" C- t7 |# {
trade-record-all1 O d, D; B( x7 @% C J# q! r
;;a list of lists,由trade-record-one组成
' j1 R( `( I, O2 ntrade-record-one
' Q) L+ H2 e% ^2 l1 D) l1 B/ m9 l% j8 n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& T6 S1 V0 t l0 x3 Z1 J: f" ]9 x5 V4 }$ x; f x9 S$ m
;;[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]]2 j& g3 w% d7 D, C) N2 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]
( u! z9 K' k0 a% N: ucredibility-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
) v5 {, U7 E1 e. m, z% ?neighbor-total
4 K+ E/ N: i8 Q" j* u;;记录该turtle的邻居节点的数目1 t$ F: \( |2 J. |
trade-time
& c. } l8 U( w' v;;当前发生交易的turtle的交易时间
$ }$ U2 t( r$ t! [' gappraise-give
3 ]: b" b2 L3 i* y/ ^3 p& p# n4 F;;当前发生交易时给出的评价$ F% a/ p! S1 V3 V6 e
appraise-receive
) \* F- w- z+ W: y) B$ X;;当前发生交易时收到的评价9 x7 J4 [4 A- {
appraise-time0 C' u2 e0 I% p" q5 w
;;当前发生交易时的评价时间
- t: I" d# r* F- ]+ M" _5 ]local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 h0 P8 J3 P6 a* i0 gtrade-times-total7 D+ r6 w# [+ e& T
;;与当前turtle的交易总次数
# w5 E9 v: E6 j% P0 G. ?: Qtrade-money-total$ H; l- N _9 v) f# d7 e
;;与当前turtle的交易总金额4 x* E& g- l! K$ t4 r0 f2 d8 q) A
local-reputation
4 N( ]% h: c, C: c9 N0 B- Dglobal-reputation
3 }5 A ]) O4 B6 ]credibility
, m$ K3 Z; H$ O+ o# p a( Y: l$ p;;评价可信度,每次交易后都需要更新" e! \; J; d) d
credibility-all
8 U9 R$ s2 o/ L. A' t' G8 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
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;;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
3 C; N. h8 @. Scredibility-one( K- v) T" Z/ ~
;;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, o" ~4 i5 O- d2 E6 a' w/ `$ p8 k
global-proportion+ j! j' ~$ O- |$ Q% ` Q5 u$ o
customer, W4 |3 }$ \$ J
customer-no
% x) _) p) @3 n) itrust-ok8 d9 l$ x' I) }5 F. [; A8 c
trade-record-one-len;;trade-record-one的长度
@% q' N5 D; J2 s% F; a]
. C; ]. i& O& A8 m2 z& M4 t+ D7 U/ }- b9 }
;;setup procedure
% F0 U) V3 A( a& x
# F; A( r- O' o# y F! A2 n% eto setup. h# ~4 d/ t4 F
6 @. ^& k' e% H
ca
# J. } O( j9 u
# P# o g. A4 u, e& P, \+ i# {9 Finitialize-settings7 D _! X, M0 C7 a: ?
3 U6 {0 p; @' H* Q% y2 ~+ h2 Y# `
crt people [setup-turtles]' R3 ^' Y" \. X; l( x1 ~7 ?$ h
! l7 [1 o2 z9 h! r, E
reset-timer1 c. h* q2 v* D' W" M
3 O) _ m" U2 @; m5 P
poll-class
5 r, g. k4 a9 v8 L" l
s( v7 Q0 Q7 Psetup-plots/ R; W2 g C& H% _2 d- B6 ^0 l0 a
! z1 D D9 U7 \# ]5 @, \1 ndo-plots
( u$ y* u' g o+ k0 nend% d- k- q2 V& V" c7 `
% N/ u2 z9 N; W ~6 K
to initialize-settings
* q) P1 N% W' G) O0 _
+ ?& I8 s2 m; h$ z$ ?2 l& y8 M$ ~5 ~set global-reputation-list []( L% e, F' `' Z$ K; k4 k: L$ g
' @; A/ ^2 ] ]2 H* h
set credibility-list n-values people [0.5]
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9 h( a; g: P/ z+ Z$ g5 L' n3 _+ t1 R3 Oset honest-service 0
) h% X( N2 a/ Z2 o4 G5 h4 c
% [* c& d- N4 _, `; Kset unhonest-service 0
' q6 e' E1 X* P- Z" \
8 z* n# j; ?. i, z( Xset oscillation 0
7 o4 S z4 M: Z! \0 ?
9 a) x5 ?/ R }7 q5 W; Z, Xset rand-dynamic 0. u7 G q1 b9 v! f& U3 x2 B
end
+ l" \( m. i2 i/ M8 y
8 l6 e4 n2 X: z) `to setup-turtles 8 K5 a" v7 B7 l N/ O, {5 N
set shape "person"
7 r- K/ J0 O; Y) u$ D& P$ k1 Nsetxy random-xcor random-ycor: J* G8 o1 ]) X$ x8 q
set trade-record-one []
1 R2 r; [% ]! m4 `3 P e0 L$ w& P
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 j' q) ^( m2 n4 g
+ X u; M* k5 @- Y
set trade-record-current []- D) o: }' M5 l' u
set credibility-receive []
1 D# g& d5 K. L5 T4 ?! {3 d. fset local-reputation 0.5 V6 E7 W: a, \1 y+ R
set neighbor-total 02 D( s) y2 ^4 C( P; Z% a; f
set trade-times-total 0
$ P2 ?, K# W5 q. j+ \set trade-money-total 0
" f$ O% h& w$ N% ~/ R( V, ~set customer nobody+ L" B6 w4 \4 d* v: f
set credibility-all n-values people [creat-credibility]
$ f. D' {1 f2 m/ _, vset credibility n-values people [-1] S) u! G! t9 c# Q9 W7 V% f) L
get-color
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# m1 }% {* k3 }end
% ]2 X& C! p: G) i9 @, {& i3 h+ T3 v$ U) _
to-report creat-credibility
8 Y- o# t, O# Z, [& yreport n-values people [0.5]) y6 W! U1 H! x
end$ }7 p0 @/ \; g% n' n
: k. y+ O/ G q( A
to setup-plots
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set xmax 30
1 h7 [, M+ ~- l' x7 T4 S4 W
4 h( O9 M0 d( J: |% i. Oset ymax 1.0
+ }3 k2 `6 W1 v- H5 L+ Q9 m7 f e6 c2 F0 w
clear-all-plots( {' b/ X" T, u! i% ^4 f# E9 R
6 W. z$ C1 x) g3 T7 ?6 C% Vsetup-plot1# l+ }) m7 [/ t! W
' M0 E5 P% {2 A; dsetup-plot2
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( t8 m$ X4 z) l. ]3 G5 V/ Q, Y4 dsetup-plot3. q8 I) l3 X( `
end& _; i5 g- n, A% N ?4 p$ }
+ l' V Q! Z" B% [0 R8 f9 @' l;;run time procedures: X! p* f+ Z& W( [
M5 b0 g/ ~: G: w jto go
* x+ ]0 p) j6 ?4 E4 Q% y" @, E. ]0 w. F# z: X5 A1 {% S
ask turtles [do-business]4 r" U% {+ I( t$ |+ b( x6 r
end$ }# I" U2 T4 D. N/ v0 W
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to do-business $ z: p% N$ R% g; F( \. @
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1 b& T4 `" S9 G+ brt random 360; n0 Z7 D+ H1 X' h. p+ w
0 _& O& u& e R& Vfd 1
% z% ^0 P# ^! P1 H
4 r2 Z4 E7 b. \, R z2 E+ wifelse(other turtles-here != nobody)[
& |$ ?, j2 x1 \ D) _( q3 C/ R
! a. Q r7 Z8 Tset customer one-of other turtles-here
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) u0 z' C2 i, M) S7 n$ O+ E, u* c;; set [customer] of customer myself# j8 t6 t/ o9 @0 h* k" w& v
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set [trade-record-one] of self item (([who] of customer) - 1)5 N1 P$ J9 v0 E `
[trade-record-all]of self" T; |& r/ r' E: ^# }
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 t& r+ a* i& r
# `) K) G2 b i% o+ X7 [
set [trade-record-one] of customer item (([who] of self) - 1)0 \! C, Z/ y9 `0 u5 g9 L8 m
[trade-record-all]of customer
# w j% ^- z# w2 P
- T/ \1 j7 f9 u1 l9 l: uset [trade-record-one-len] of self length [trade-record-one] of self$ R! b6 f4 a; W
; l' F' ~1 z& c
set trade-record-current( list (timer) (random money-upper-limit))" f- b+ s. L9 j+ ^. U! U+ S
: q4 y4 Q5 e. t B9 J9 I
ask self [do-trust]3 S5 i8 v7 \' R1 U; Q* x0 v3 a
;;先求i对j的信任度+ q* [ a3 L4 C+ S
1 q" `( y8 {* d- h5 c
if ([trust-ok] of self)3 l( g+ d" W0 P h
;;根据i对j的信任度来决定是否与j进行交易[# S4 D3 I( N& p" n0 @
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 Y! M( ?9 \2 Q7 c
% ^8 x% g, l+ G4 O ~[/ [& C) a% h( z- F: a
! n' [. C; ^* L1 A6 {3 }% |+ Ddo-trade- s* w* a& @% g! X* i0 z, J* V
& W4 i! g" Y9 y3 r! w0 Zupdate-credibility-ijl
% l4 Z) y( T! q. ~) s! S. {3 r1 T
- N( Z! Z" ]# mupdate-credibility-list
2 G3 p8 o& x* L9 f
6 c: H/ A9 C! d! A/ w, } r3 Q1 o* U8 G t
update-global-reputation-list
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poll-class
1 k2 K/ T" a* w' ~- O
: O% c0 k2 V) E; {) n ?get-color
0 D' h. `9 u6 h# b/ [
) a9 b, g5 `8 |; g0 T" N; T]]. Y- a4 J) m$ b6 s$ q) n. s4 `
# ]6 C" \7 [% d1 t9 _;;如果所得的信任度满足条件,则进行交易# G+ E) m- U% a* ]' `! M
j$ i$ o" [1 C3 |- d
[
( w, u b$ t' Y ?) H- u6 S/ G# p- ^4 J6 U6 K# ]; b( p
rt random 360
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8 r+ ?6 {( S) g- B- |6 jfd 14 [" t. t2 e( z& n" G
9 x$ H6 O# q8 ?4 |" m1 ~% @8 S
]% b$ a. O, i" g2 h) x. F% a; A, ?. |
- p* a+ ^( l) x) H+ vend
0 s/ N* G' R- }" u7 A! r3 w9 t2 f$ O8 I6 S0 X: p/ E# G! W
to do-trust
5 i5 y( t, \7 Z b. M7 p; O) A% Fset trust-ok False0 I, p; O& p, t! d8 T
; j- i) X& t0 M9 Q# q
) ^& \& q! P6 Z% @1 U( G3 o9 h
let max-trade-times 0
) k4 M: `5 w; S) u9 ~ }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; j. Z/ j" E' {, T* e T' `7 y
let max-trade-money 04 Y: @! c1 J1 ?2 o& h
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) @) F7 Q/ E: ]$ X
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
1 l9 q3 q: Z2 G! v N$ U( i) a/ m: ]' D) h' t
; V; I2 D8 G: d# g6 d5 E8 @get-global-proportion
: x( Q7 b: x5 [+ Y4 vlet trust-value
# [- }: L5 ?8 _4 U: elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
G& J R- v: z3 t/ {if(trust-value > trade-trust-value)
6 E" T) W7 c, I, j) u8 w* t5 b* r[set trust-ok true]
& a1 z2 ]( U( Uend4 O2 ^! g4 ^0 N- V( y: W
0 p7 h' ~$ h5 Y
to get-global-proportion
/ D- c/ f2 _; K% ^7 p9 i* e, iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) Z: V+ d" E o' t
[set global-proportion 0]0 d: I- n3 C E7 p' b
[let i 0
% V7 k7 S t* }# vlet sum-money 0
; Q- s2 c# Z: q+ R- Z% Q" Lwhile[ i < people]: d7 a1 i" m2 t8 [
[
. O( @, |: g, b _$ vif( length (item i
6 J: c6 _ N4 i! K8 J* d[trade-record-all] of customer) > 3 )
1 s5 s: k. q/ [% ]- k2 u[- ]' ~) G' {1 e+ j5 q7 @! E
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 z- a! s" ^1 \, D$ I]8 a2 L0 G+ h* A8 b, ^; W, r4 F4 ~1 R
]
. M) f5 J; D0 K- N; _let j 0( d* i2 s8 y7 K, D+ H
let note 0
4 U( E/ _ |" vwhile[ j < people]
9 G) B h/ m2 {! S[
5 `6 M# o; n* B8 s* gif( length (item i3 ~( ^* P. M$ i4 ^
[trade-record-all] of customer) > 3 )+ H5 S9 O Y) E& O
[
- _ K' b' i* `4 Z: Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ ?% I4 _1 ^; z' C3 B, J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 t% H( ~8 ]2 U4 t3 a j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) Y5 d8 J& X" u: ^ c' X]3 `! k+ \% Q6 @& F7 d
]) }2 q$ J! x# Q2 Q* a3 F( i5 C
set global-proportion note
) G: v, B" b7 Y9 e: r7 r5 w. R+ Y]
. `( Y. \" [9 ~) w; zend4 Q: @; M! c5 M% t
6 `$ V! b8 U1 y* z5 G) B
to do-trade- a" r/ N" h/ k& {+ U+ y( J6 n
;;这个过程实际上是给双方作出评价的过程
/ Z* E) ^% Q, e' U, J/ qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 ?7 U5 Q4 u- z$ V) c, _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 d* N T5 b, e5 a3 l g/ d1 x
set trade-record-current lput(timer) trade-record-current
7 q) A& a+ v4 I% x9 G! y, X;;评价时间2 I; j# c, ^) t7 u/ r
ask myself [% q5 e, q5 j+ ^
update-local-reputation
. `2 P9 S! a: d2 o M4 Yset trade-record-current lput([local-reputation] of myself) trade-record-current" \! I6 \4 J* P+ Y6 v* l& w
]* ?$ P! E; y6 s% L9 |: y( H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 [" h: R8 O: ? \5 H. A" C;;将此次交易的记录加入到trade-record-one中
1 R7 u- A4 j" }. N' M0 }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; O: M2 [1 _8 Q) [let note (item 2 trade-record-current )$ L6 v* N8 B$ c6 V
set trade-record-current9 i4 ^& h% k( r& v* P
(replace-item 2 trade-record-current (item 3 trade-record-current))% V6 V) E4 Y& k8 b
set trade-record-current
) ?: ]. b# ^3 c! m. h4 V(replace-item 3 trade-record-current note)
/ Y/ h- c% D' ?, l9 V% B# q2 d( B. f l5 P* |9 b
, Y. y" J! ]* v5 _7 P
ask customer [
5 h2 ]& J7 R M+ w: g# wupdate-local-reputation' Z3 }' X2 r) Q2 p( [$ R5 S
set trade-record-current0 i# r( G+ c$ y5 u( @ J3 u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 K& ^6 Z# X: {' F- P1 ~' a/ o
]
* W" d" m, m# S: i* T. Y' r4 W
) o# @0 d9 a: H. X% p# c1 t$ M$ n( i0 H4 K; U/ m3 i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, y# K, a/ F) j; ?+ c# v+ _( E* x" s
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 T+ @7 }4 F4 m+ M5 h# q;;将此次交易的记录加入到customer的trade-record-all中
( X( I$ e" d# _3 Hend
0 B% g! |. w7 a. d
6 C( e% q" C" `0 n5 f8 Mto update-local-reputation
6 s3 C/ o P+ b# Z6 e. Vset [trade-record-one-len] of myself length [trade-record-one] of myself/ z) U* x# s8 K# I9 I/ |" z2 [7 r
& G9 u. D+ z, o$ H
, X2 T% F: b0 t7 Z' [' Z;;if [trade-record-one-len] of myself > 3 , N; C- F3 n% W1 _' W5 @
update-neighbor-total6 v% n! w6 U7 H/ n5 H
;;更新邻居节点的数目,在此进行3 x4 g" }7 V$ t* y" G* q
let i 3
% u _9 L# k' z5 V$ P$ ylet sum-time 08 |& o5 a* P; Q: \3 p- G
while[i < [trade-record-one-len] of myself], P, N. F D; v
[
2 m! B0 c. }, j9 R5 O/ E7 }# `set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! n6 T. Y, U. }/ eset i; U n% o. v, e. [( a
( i + 1)
% R( N* z: a/ y" p5 q5 d. u: T2 W]
- h9 j/ G+ t: b% y2 m+ Glet j 3
, V, c! }( K3 m2 dlet sum-money 0( C# X, [$ }" L& b$ ]
while[j < [trade-record-one-len] of myself]
9 a- x4 g5 X. z6 ~# g[
. R# ? A$ N, u7 t, _" Bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)' Y2 v; F6 P- L( H0 c+ l- U6 X
set j
- r7 p% ?! p, p6 c1 b& O# Y9 }' u( j + 1)- J. D7 Y l* Y3 {. v. Z7 m
]: _( N# T) z2 ]6 W3 i4 K \
let k 3; S- Z6 e5 w7 ?- [; g
let power 0
6 q: U1 M) N+ Z. A& p) c K; ~7 {let local 0
: j! |' b. f6 v/ hwhile [k <[trade-record-one-len] of myself]
5 Q3 c8 H6 l( e[' e, H$ u" u( 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) 4 z* b; q. g: P5 w# j, A
set k (k + 1)
1 T2 l3 r5 A, d! f/ T4 w]7 h$ S+ Q. _5 }9 X4 |
set [local-reputation] of myself (local)
4 V- T* d; N* `7 lend
5 z3 n0 \! s, W" Y) i( j1 }: y$ w6 o$ j
to update-neighbor-total- L5 i! k* }7 U; `! j5 q
; m& t0 Y% q- _- {; a( U
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- n' i$ O/ ?7 [0 a3 _# D8 ]; J: }" r: c- s
0 m/ ~+ l) {9 h y/ ]# nend# A1 A2 F$ v* O- |- _+ {" b
9 B( ~: d) Z$ [to update-credibility-ijl % J0 B/ N3 P3 W& ]) c1 l
3 g6 m) h, W: N5 l' O;;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。/ U9 ~% s( R( [( S( K, u' f6 Z+ J
let l 0
2 ]; P& z9 S: ~ V: m! Iwhile[ l < people ]# B& k, B7 Q/ f5 y
;;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
+ |& d, m" w z* }/ @% }3 @[
: b/ z6 o" C& }6 _( llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 h8 \7 b! s" M- m) [
if (trade-record-one-j-l-len > 3)
- v( _7 L( C( _! n0 `, |9 X[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
+ E& v% }. k2 m* Alet i 31 r0 o6 L. ?( V
let sum-time 0
2 {2 y, ^3 q: L2 P, I Y' @while[i < trade-record-one-len]( Q6 }9 Z& P, O: h+ @1 `: @
[1 P k% \; D: t1 t% z# W" C
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% R h0 V! N# M2 r
set i
+ E) @" f( m: x5 o( i + 1)
: E( p$ j/ w: W5 R3 Y]
2 @& s0 V) r6 f% j% S! nlet credibility-i-j-l 0 [! W9 R' A9 r3 g9 t' p
;;i评价(j对jl的评价)
7 P6 M m2 m+ d$ _2 u2 Dlet j 3* t- I1 U! b& W
let k 4
, z8 q; m4 W* twhile[j < trade-record-one-len]
8 b. I: l8 ~7 z9 [7 W/ v3 y: ]- w[
|7 y* B# [( A9 C8 pwhile [((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$ u1 A9 X4 Z- t z
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)
3 z* A* l0 d* k5 `$ V" y1 bset j/ N m1 \, A$ ]! X
( j + 1)! h6 \ F4 `, Y, ]4 v
]
" R, d8 ^) ]& w/ O# T& ]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 ))8 n; E7 w4 j8 l) _
8 I; H2 q+ K# Y" v& h6 D" x: P) k
3 Q. \* v/ ]) m5 h% Y3 k( p3 _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ q/ D* M; [ e& \ i% ?" |
;;及时更新i对l的评价质量的评价
$ q7 p2 E7 V) `- y( dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 c) u$ C0 ]6 V) h' B/ _* Tset l (l + 1)) W$ w: E: y2 I0 x. `1 D
]
# `, `% q! R, I0 bend
( J r, Q( I& z! [6 f5 c8 z! i& j+ {& d) s8 n
to update-credibility-list% w4 _8 G; v! i+ D
let i 0) h! L4 q% J; c I2 f; ^4 W; Z0 l
while[i < people]& U0 L5 S( A$ Z, @; | m+ p
[
; B; D2 @ C: f+ p3 Dlet j 0' Z, G8 R$ G" x3 ~/ C4 N1 j
let note 0" w% d+ q- ^- t/ G, y
let k 0' _8 W2 Q& T7 Z
;;计作出过评价的邻居节点的数目. ~: \( i% _9 i7 Y
while[j < people]
$ M |7 `, I$ Q* P$ L7 i[4 M+ ?' ]" B# z8 Y: U
if (item j( [credibility] of turtle (i + 1)) != -1)) j# \# |7 {1 B
;;判断是否给本turtle的评价质量做出过评价的节点
* ?/ g! O* D; Q/ l9 v( z[set note (note + item j ([credibility]of turtle (i + 1)))
( }- l* o* T& g8 x;;*(exp (-(people - 2)))/(people - 2))]
. v x( o$ V2 M# x8 X$ ]set k (k + 1)" a6 l O3 r$ A" R! V6 ~% g' o
]
7 E+ I' G9 ^6 j6 Qset j (j + 1)
7 M, d) R1 f& |0 L]
- f$ A( f3 A# \# |/ [3 ?" z: j3 C0 eset note (note *(exp (- (1 / k)))/ k)
: s M1 W: e, S0 t+ `set credibility-list (replace-item i credibility-list note)- A$ s5 O2 q( S4 T C2 |# Z; M2 U3 w$ H
set i (i + 1)* w' C+ f' z# g. C7 k" J- j5 A
]- ` E9 K3 y& ]5 Y
end
1 x9 B: ]8 w4 `6 F' k$ \ E1 E6 V
- Y0 T5 W# m2 x/ _" C1 Wto update-global-reputation-list5 P. b5 E: k+ p N/ K
let j 0
( k1 n u$ P$ j" a$ b5 O* }( Lwhile[j < people]
6 [% ?; X2 v' I8 s9 q+ M5 R[9 ^/ z6 g9 S% B1 F0 ~% Q4 [
let new 0
5 k9 v+ t; q' s) k! r0 H;;暂存新的一个全局声誉
' E) G, Y8 R$ A7 wlet i 0
8 `; o0 n$ k n. t/ _& vlet sum-money 0: R- [: W! e8 d* n0 K
let credibility-money 0
2 c- ?2 D8 x" L# Fwhile [i < people]
% `& q8 ^; X# r[) p) x9 i4 K5 m* B0 D1 @8 B; V& l
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( @4 o/ B8 R0 W1 [: M' o0 b' ?set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). ~! c5 r4 Z! E$ S9 B; h- L
set i (i + 1)
* X( {, @5 f: m4 s]
6 p0 U3 F' b. r6 T) R S* i9 ]let k 0! Y* q5 D' T" |) Y W6 k
let new1 0& U9 x" v0 X- {3 P6 v! p8 c
while [k < people]& f% f% r6 c( S$ B0 O( v2 o8 n
[6 P: Q( G! k1 j F6 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)
9 o% }. `$ n0 Q: Y" Lset k (k + 1); P( q7 C# n! F( `$ Z8 o2 i) W
]" ` B$ i, ~ p1 B ?8 m, X0 Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) A4 v# b& W, v8 I4 B. R# K& kset global-reputation-list (replace-item j global-reputation-list new)$ k( O1 c! }7 }0 Q
set j (j + 1)
9 _, H; z c) w0 P' a" Z. l _]
$ a3 P% o3 [6 ? \1 E; b: _end/ D& r9 p( Z$ G3 O/ N* W. V" b) Z
/ E* d+ O8 |% J9 q( S, t' \$ Q& G
0 |! Z B, C, U! ]- D* k: |8 e
/ ?6 N: S' `! w- f5 A& Y$ Mto get-color
2 u2 }3 }0 |2 H, w4 W) I1 h) E
1 S" j5 D/ ]; G) {, N' f+ X7 x0 Nset color blue
& @* w' l. A+ ]8 A. R7 Hend5 L; B: H5 Y+ L* J
0 N/ L8 {: O! B9 g) ~" D' N; Dto poll-class' }' b4 L$ i" G, X7 _3 \. R
end; \3 z7 B( B; J# S+ ~6 s& p! [
+ k% B( i" e& j& a! w5 G- @! |
to setup-plot1
* W. E' D$ |4 n. S; c; R/ m7 K* ]% Q' ^2 i/ |% `. X
set-current-plot "Trends-of-Local-reputation") P5 [4 g0 ~7 i, Z# ]: G( M' a
|% r9 k& g& R+ m3 vset-plot-x-range 0 xmax
1 b. w9 s% r' m, s$ O& Q
& O. \; P& Y$ n4 N/ Eset-plot-y-range 0.0 ymax
4 p$ C- L* U) Nend
, `( N E+ B% w* U9 j4 x
/ {6 o1 u. ]2 N- t$ f6 B8 c' Y _to setup-plot2! c2 l6 J% U; |9 |% X
2 @. g$ P% ?+ c' C
set-current-plot "Trends-of-global-reputation"
9 z1 ^( y1 b* F! f! a4 Q/ e9 X) \) P& m
set-plot-x-range 0 xmax' w; R2 f0 C7 \- r& n0 h
3 A* R; L _$ rset-plot-y-range 0.0 ymax
, ?! e3 n0 B! g! g iend
- B" I5 Y9 A9 k' C
2 s! m7 y7 e i C$ ~9 x7 T4 Qto setup-plot3
0 f6 _( Z; M) F4 [4 ?! f# Q9 x' _
6 e. R; E8 m& a6 m, hset-current-plot "Trends-of-credibility"4 W* O7 ]) T# F8 [* S* ~
# u! s; N- Y3 b
set-plot-x-range 0 xmax
$ w3 U# L$ m0 u6 X4 g) F
7 A# q& f! z" R0 t4 e+ oset-plot-y-range 0.0 ymax
7 K3 C9 O2 A) kend
u6 I0 C$ {* D' U0 R! P
* F. v' p3 I6 D/ ~6 F; eto do-plots
7 q3 j: z: h { D& c9 Oset-current-plot "Trends-of-Local-reputation"/ Q% x+ B$ y) e! H, H
set-current-plot-pen "Honest service"
' s% v! N4 }2 ]; T" {end$ V: t4 v# C4 e: m7 Z' ~, M
/ ?" b" m9 ]' q; C; h[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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