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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
) \! B2 t4 ?# b7 Fglobals[9 l' L1 @5 b- m- I1 |- R1 w7 n
xmax$ Q! @7 c; M1 A2 G7 e" |, z
ymax
. e2 @& J! t8 b! O2 c3 @global-reputation-list$ L: G3 Q4 L/ ~% M0 P
8 E4 Y4 }1 h/ d& _+ U! Q! n
;;每一个turtle的全局声誉都存在此LIST中9 A" `, E2 `0 w* W' E0 A6 F
credibility-list/ z' v- }2 {' D. \/ s
;;每一个turtle的评价可信度' Z: i! F0 P, N; V) `+ M3 a5 h
honest-service
# J) \" e) ]3 o. eunhonest-service
; O! A2 C# |7 Toscillation
2 g# j. e* y$ t& z* Mrand-dynamic+ E7 t7 @6 k# ~1 d* f6 z
] W4 u( _3 F) K
' i, i1 X6 Q( @/ f) G+ Kturtles-own[) `; }5 _; ]; [8 i. m* b/ } u1 ~
trade-record-all
8 g& P3 ?- X( `/ f% @;;a list of lists,由trade-record-one组成
/ k, A( L4 }* @7 Ptrade-record-one
( J$ O6 ]( @+ j9 {% G o;;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 O y- K' `2 o& T) A/ b# h: 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]]
: g( V5 w2 V/ l6 gtrade-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 H: { h9 x( D k8 i- W% o7 h V
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! k, E7 z' x! X8 ^% P1 C
neighbor-total
4 E. g( K, A* G# M: `3 w& \;;记录该turtle的邻居节点的数目! k$ F2 |$ F# K0 S
trade-time
. n$ P0 O" t5 g) f5 y! p;;当前发生交易的turtle的交易时间
3 `5 ^& T G, Vappraise-give* c; @0 Q# P6 ` j. r0 ^
;;当前发生交易时给出的评价/ {# `" X+ m5 d
appraise-receive9 E2 c$ d: c. E# e& A& ^5 d0 o
;;当前发生交易时收到的评价' c- r& |8 v, x- @! B- A
appraise-time
" J' Q! V, m) w' i% q;;当前发生交易时的评价时间
8 k V4 m, H# Z5 S% w7 Nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉* B1 a& ?# ? u W
trade-times-total
( F9 H O; P( l2 f+ N7 R. Q;;与当前turtle的交易总次数 J u. v5 A; H+ {. b
trade-money-total/ j: B9 ] z/ O
;;与当前turtle的交易总金额
& P1 n& I1 v/ Z$ zlocal-reputation- {( y/ R% F. `: V# H3 s
global-reputation
" p9 S3 f5 r7 z/ D) p" z2 @credibility5 K& g, h( a4 C. i+ U
;;评价可信度,每次交易后都需要更新- N6 n- G7 Q# A& _0 L1 j6 ?
credibility-all8 c3 N2 h/ k1 O) f& O
;;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
( w! N. h: U' n/ a* p, c% i* h* y% Y
;;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
" h. |) C/ Q% P, Zcredibility-one
* D* e& g( t5 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
1 B$ g* [+ y; W h/ gglobal-proportion
! J3 O7 k/ H0 d0 X {$ u) Y9 mcustomer1 Z3 O! C: K3 J/ b, y; g
customer-no: Q+ E! g+ z& ]) ^8 \( O+ I q
trust-ok
U/ Z3 j, |# i# A. x& h7 ztrade-record-one-len;;trade-record-one的长度4 K- c/ N# W& o# ?
]
4 T) h$ i; F! V1 L4 H
% K1 L7 k$ C) d;;setup procedure
6 p" u3 q: o @8 ~' r4 y. _: G# Y% j$ n" H8 r) G- A. M
to setup
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6 x& u3 }5 P6 W3 ]$ w) Fca
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initialize-settings
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6 u+ ?& U. E+ dcrt people [setup-turtles]# w0 Q8 b0 f( ?4 Z4 f8 {
, G; V3 b3 _4 r- k! `% P9 jreset-timer( `. E% a3 U; h$ ]2 W, v) w
# o, }1 T. ~' b6 h* P1 H" n- Epoll-class, U' x0 f1 w' s: ~# ]
3 \$ c, l( @! ssetup-plots6 T! u* y: S; ~. B- v# r5 ?% x/ X
3 E" X' o! H9 s0 X
do-plots: S1 {& f8 n& |5 i1 D2 ]
end
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to initialize-settings
5 F7 J/ I9 j) U$ c1 E
/ ?4 d2 o; i& E7 X! @. yset global-reputation-list []' Q0 k. C; o% d A W3 x
8 g2 G4 ?6 S$ S" h6 H5 ^; P$ Lset credibility-list n-values people [0.5]3 L8 F4 f2 d+ J0 w+ x* w+ n* h
) h9 s4 i: k; g ]set honest-service 0! m8 v" I6 P* e; w( t7 Z- g5 M
% D1 z( I0 x( ^- K
set unhonest-service 0
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set oscillation 0
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set rand-dynamic 0
" w% B( @: Q$ F& E+ U& }end
' N4 q3 |- P: K% T$ E( Y2 R
+ P2 \ [/ y L+ b+ S8 hto setup-turtles
& z( [. S+ S z4 z! E9 \1 `8 cset shape "person"- o8 |( W7 f; B _1 T
setxy random-xcor random-ycor
7 r0 p2 W& }# T0 o% ?: u# r) Vset trade-record-one []" H- _( m3 Y5 G3 v: U) y
, }2 M9 l* g& }5 R1 S( {: B
set trade-record-all n-values people [(list (? + 1) 0 0)] 4 |. K) u4 P3 v2 ~1 E4 ?: w" a- N' f
4 [5 h6 v5 s7 qset trade-record-current []
4 p" j. V4 d; C ^set credibility-receive []
0 }) @& Q& G+ Cset local-reputation 0.5
) d0 O+ [- k( N( T, b5 K( \; Wset neighbor-total 0
R. T7 s3 ?- b2 d" o4 zset trade-times-total 01 _+ C E8 C5 z; n5 a
set trade-money-total 0# M" _' A/ F9 b" Q
set customer nobody1 V" I( {. T0 K" [, i
set credibility-all n-values people [creat-credibility]) E4 g) ?3 [- G- X/ w" F
set credibility n-values people [-1]) b, H( [( I$ F5 c3 V/ _/ \" B! @
get-color- m8 J0 ]! [9 M. Z
: c" l q: c, H0 A8 w' L* G! mend! Y6 K% G4 J& [
1 ^3 o/ c7 M: Z. m) C- M
to-report creat-credibility" S7 ?/ v! g3 w+ S1 |$ Z
report n-values people [0.5] C7 |+ O4 j, [; t
end3 h; p" {' N1 f" @
6 v% H4 R C' R. h1 ~) M' lto setup-plots
% \9 L7 |/ Q. l/ u; P, U5 ?9 S, N/ U1 D; U
set xmax 30
: n) X A/ L! R3 Y/ X u
2 e/ _9 c. z6 Z' gset ymax 1.0
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: b4 t% v. C I# V3 J! K, L; s9 k3 D9 Jclear-all-plots, e" ~6 R5 r3 f3 T( }7 @ H7 x( T
$ Y% E4 Y, j2 t7 \+ _+ Zsetup-plot1
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setup-plot28 I! {7 q1 M) g
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setup-plot3 O7 h0 S$ B, P* `
end
5 {: g5 ` S8 q' {. s) F* P
; d4 s w7 U4 y- ~;;run time procedures' w2 m4 |. {. x5 J9 |
5 U9 i) ^+ S3 w t
to go
# u' g, D2 S3 w1 ~5 b% @# e2 Z* ]; e- Y$ E2 @: b* Y/ M
ask turtles [do-business]( m7 N! q! ~. Z! _. T% Y
end1 @3 z# A$ T( | D, K6 r4 S+ u# [& g
( `/ _; J' u3 |/ k; r3 i3 p9 ~
to do-business
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' e. V0 F& ]1 E$ [rt random 360
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fd 1
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: m* ^+ z' f( G; B0 j' P4 j9 |3 Bifelse(other turtles-here != nobody)[) L9 N4 h) w7 |% U2 \( X, ]2 V$ v
' C. F3 N7 T$ L( B, u l; N' tset customer one-of other turtles-here
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, K+ X( Z; t+ o o% k- h# [;; set [customer] of customer myself' d1 N! r0 V5 G' b
9 I9 Y2 s4 X7 L8 f( J& z. dset [trade-record-one] of self item (([who] of customer) - 1)
6 P2 t/ F; s3 y k" }* L& {4 I2 p J[trade-record-all]of self
7 s, I% e1 G3 b O3 `3 F4 [;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 }! l) i* }" F8 e7 Q0 `3 S& c {" H
set [trade-record-one] of customer item (([who] of self) - 1)
! @* t6 l# Q9 s( ^ |& V[trade-record-all]of customer
/ [1 c) h4 I6 h- Y6 O/ I. Z8 ]
set [trade-record-one-len] of self length [trade-record-one] of self
- {" A M+ R) n9 Q
" o0 T, @$ K. A5 wset trade-record-current( list (timer) (random money-upper-limit))2 i, D* m/ i: W7 C$ X6 `( a. E
2 A9 I- h. k3 h4 P5 Dask self [do-trust]1 q" [, D: o) j' _, U0 q4 t* W
;;先求i对j的信任度1 i8 X: a- i0 P* O# V3 A E+ ?: V
9 G3 z' ^+ {9 m/ l/ H' ]if ([trust-ok] of self)
% Z# D1 b/ f; v: |5 ]3 u8 }8 I# B;;根据i对j的信任度来决定是否与j进行交易[
4 K* t, B( Y7 }* Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ F9 z( Y9 D0 ?0 D! N8 ~6 B
" ~, B2 v% G4 a% w1 p[. u/ ]" k3 p8 g. J% c
, \) N7 M- J* b7 j: `) K
do-trade* l7 P1 c* l6 u8 c9 F' H4 V. Y
9 T6 W4 V1 f* Y* ?" U4 I
update-credibility-ijl
. |/ n$ `: |# q+ R
( [& l! i8 k7 v6 Pupdate-credibility-list
|1 v* b0 g) N3 x; y7 \9 Y: l+ V. \. D/ S) l
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update-global-reputation-list
$ P |; I8 @* t K$ g. A# _0 `7 U
7 J% s* J) K) c# ?2 a* P2 _9 b6 B: Kpoll-class9 f" V2 ^0 f% A1 [% i% k2 }
4 _# X5 H* R0 y# `* A0 A( g9 [2 }get-color
) w+ n) Y# p2 p; x2 J
" }9 T Y2 ~7 u: k2 b]]
% Y% [/ M2 G/ I5 R& V. E, H" u5 t5 w- L- U: W
;;如果所得的信任度满足条件,则进行交易
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5 D7 R2 a+ q( i, _, H[! Y! Q$ \. ~8 c3 \, s/ i
^9 y/ i* J) b- `2 L
rt random 3607 ?: J1 F/ P4 ]1 u4 b2 S: v
: l" F K% c9 D" e9 P0 s$ e7 m l* b. hfd 1
: Y2 \* W: p! S8 D" `
+ s! J) f- h1 u; k- Q]
' f* I% L' f7 W ?( p. W2 V. B
% G6 F! ~ t$ c3 I$ C" V, V& fend- S; H2 } J- ~, m7 `
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to do-trust & p' {" J% K, x9 f6 {
set trust-ok False! m' n" h. B2 L6 V: ~
& r; B. c; C& {" s* o7 T7 @
1 J) D+ x( q# B$ n# z; W
let max-trade-times 04 C8 K2 q5 G% z9 t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 ~0 N& g! H8 X4 n! j; E/ ylet max-trade-money 0
0 ]2 _8 K0 M- I8 m, O9 Uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], |* F7 n3 M: A) }4 `7 q5 T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* k3 u; X# ?. g, i+ \: t4 F1 v
" y5 v9 j. c: \! ]: X
; `& U- a/ |1 b' R: Gget-global-proportion/ D6 _, J* r! |8 b
let trust-value
' v, [3 ]! R6 ^ mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)8 y! E4 E1 H6 x9 F) ~
if(trust-value > trade-trust-value)
+ T V" D6 y6 t" A b3 }8 @, A[set trust-ok true]9 I/ G5 Q4 b5 _
end
! A' g t, c. A. q+ @) T
8 _% \) {8 ?; z( ?to get-global-proportion
$ E1 U# q: ^' v9 b3 ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 F" k7 P; z9 }; i1 D/ [# n[set global-proportion 0]5 M+ p( i2 W1 N7 A7 Q8 F# v( C
[let i 01 c; L% \9 Z: X) Y8 _) x
let sum-money 0: c/ a1 B( ?6 X; `1 D& |: j+ m% Z
while[ i < people]
& [9 i l$ m5 T6 K0 T0 R$ p i2 z. e[
( m0 y' N$ A/ v3 Y: u( Aif( length (item i
" l, Z: s& g) T( S% X9 D# s[trade-record-all] of customer) > 3 )
# [. {; O: |' c/ X2 E[5 t9 Y' ~: O# D: c7 O$ [
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, H& C/ j7 d( x1 ]! _, L* h+ S]
! G( u) M9 ~/ g Q: M" M7 ]4 |]/ K; C0 ?5 e/ _ I% s) X* i
let j 0
n6 T% C1 }7 ~ B/ plet note 0 @/ V, y; U0 d# Y& H6 A
while[ j < people]
% N) A# \6 {1 ?2 d# i; T[
( V' ]& b I; x& Kif( length (item i
5 r4 V( y" M+ }[trade-record-all] of customer) > 3 )6 X8 c8 Q- D1 S" E$ U; f, y* y# z
[
: _ [; m3 `0 A" f! j0 J* t. y- Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 w+ P$ n- U, w3 E0 o/ x2 i% O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: C7 t3 x+ ]; T8 ^1 r% b! X. q/ a[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% u) j! g: o& i% g' N]
: f |3 S$ w7 n$ G j: n], Z: {" o: N2 t
set global-proportion note7 z+ _9 \8 k9 L. E4 r( ]+ w
]
! m) {' y% F2 n$ l4 Yend* m8 h/ c6 `$ {, f9 C
; }# v. N4 {5 Jto do-trade Z# y" X2 o1 Z: d" A8 I
;;这个过程实际上是给双方作出评价的过程4 ?" D* L2 [6 K4 u/ ~( O p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 A6 }5 ~ T6 N- hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& C9 x) _8 _3 R, x1 i/ k
set trade-record-current lput(timer) trade-record-current
0 r a/ C1 L6 r, M/ s. p;;评价时间: w( m9 P" ?4 ^/ b ^) d
ask myself [% c5 n- t% j9 J g3 Z
update-local-reputation( y9 S- b$ b4 D( O
set trade-record-current lput([local-reputation] of myself) trade-record-current$ e1 M2 [4 I, X; n, G0 a
]
1 S, Z; s- V/ q# S, R6 ~3 h; X" ^/ y9 {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- J- k7 ^( A' ~! W8 Z* ^% T% }
;;将此次交易的记录加入到trade-record-one中, ?/ d ?7 w; P& K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 ?3 N8 `* q+ K) c* `6 K5 rlet note (item 2 trade-record-current )( S* h( \* _' K0 |+ {
set trade-record-current
. J: v# Y9 F$ n6 u. i8 L(replace-item 2 trade-record-current (item 3 trade-record-current))3 U+ P) ~. q) U( R. k
set trade-record-current2 N; ]# A& w' W9 N; ^& Z/ [" M* Z
(replace-item 3 trade-record-current note)% ]( r0 }+ O. u P
) k( z1 c1 Y5 P; N* b& I( X1 ]5 H2 S
q+ D, D( }1 V9 Y! m' pask customer [
5 Z8 w2 v2 ^$ iupdate-local-reputation( @: ?. L2 ~, O6 p9 v! S
set trade-record-current6 g. y0 R, S$ Q: W
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 ?* d3 D R g, ~/ S% B1 |% s- h) N' o]
( T% A# I5 ^9 x- m9 g3 i) S% M
3 u8 y7 k/ |, [7 ^9 {% u
6 A; v; X r* l' E( H# z2 sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- d8 J+ b) n% d) l X3 p
" o0 g( @+ r( z Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' M+ B& O1 |1 p/ [/ h
;;将此次交易的记录加入到customer的trade-record-all中
9 R$ ?% A( I9 Q0 Q8 K; V, K9 `, Wend
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to update-local-reputation
7 E0 J. Q+ X" K& ~+ W( a, ~set [trade-record-one-len] of myself length [trade-record-one] of myself
& c" n- {$ r' R# l) q( _3 W# k' T& g: u4 _7 p
, A2 y( k% \; D- |1 G) U;;if [trade-record-one-len] of myself > 3 % J+ R* k: m2 m- l
update-neighbor-total5 Z p0 J0 O1 D1 {, T9 g3 J
;;更新邻居节点的数目,在此进行
6 Y0 f3 d: l' Y) _5 \) _* Llet i 3
# K; p* d8 ?6 r! j+ vlet sum-time 05 H* S8 Z2 }& R" H4 D X0 z
while[i < [trade-record-one-len] of myself]) _- I: q" I& R q% _/ I
[
0 ?5 c9 I+ n; Eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 E2 t* g! I4 M
set i' Q7 G$ {% q6 U/ T& T
( i + 1) t6 S5 H' o7 b! ~$ D
]
0 B6 F0 z7 x% qlet j 3; N! l" t0 `3 D% |
let sum-money 0; P8 B' w" v/ \4 x
while[j < [trade-record-one-len] of myself] Z F4 F T( I5 ?; b/ B' U3 _
[
* E" C5 j$ X4 W8 {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 Y- \. c R6 P! l, j) K- \
set j
2 X! |; M; j0 `, k( j + 1)
+ o& k3 i. Z4 B/ _]
3 N2 b: X X( T% g* Glet k 3
% N! b) K l7 c7 flet power 09 f X- P( e; m# [' e: s1 K0 P2 H* L
let local 03 S+ p1 P, {) M1 ]3 h" W
while [k <[trade-record-one-len] of myself]
. F# J3 K) ]( \' m/ R, R- D! P[2 u) ]) X4 x: y. B. y7 i u
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) ' H& d" I4 V7 m, R0 Z
set k (k + 1)1 g$ o9 O0 w$ H. n
]
( G- e6 S0 ?* K( y# ?. U/ Yset [local-reputation] of myself (local)0 f! a- i( ^ b& r. t0 I
end+ \. Y$ C0 I( g3 N7 n. a
0 ~* s, I" F. Q4 }% s+ T. b+ n
to update-neighbor-total- X" ?4 m& b# @8 J* e, s0 {
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 w' d6 w1 U$ e- u, Z
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end
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to update-credibility-ijl 5 S; \3 [: r$ n A8 \# m% u! h* |
* s# X: L) r' N- }+ 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。3 ]% k. \: S: D! @+ D. c; O
let l 0" I' `. R$ M2 F, J X) T' R
while[ l < people ]! p2 y: [, x) l1 `
;;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9 ~+ f- i% U( v0 e B ~$ ~
[- P$ ~$ k( T0 M: {3 f- D
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)" S5 t9 A3 H! E+ w
if (trade-record-one-j-l-len > 3)
# k0 S! }# T8 }[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
- s* y, [+ O+ s( X+ C+ Y' f) zlet i 3 R. m4 m. S$ P" y4 l q
let sum-time 0
8 T& A+ }* g! N2 ywhile[i < trade-record-one-len]
' n/ X& w/ ~: Y( T% O) {; w9 s, f+ Z[- W1 V1 A0 t: O0 G
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 o# H' l8 W7 X. V$ [
set i
3 r2 }5 U- a$ z+ @" w- J# i8 w) G3 u( i + 1)' n& s, n+ I: h; l& s& t; _
]
5 m& c6 z2 B# z7 F9 ^0 Llet credibility-i-j-l 0
7 Q1 D2 x" M* R/ H3 H;;i评价(j对jl的评价)
, f" x; f# J& P- m* F# T) blet j 3. k' k# I9 f. h: J
let k 4
/ R$ e% O) B# S* O X9 D1 Kwhile[j < trade-record-one-len]
* b5 E+ S9 q* W" \7 S[
( A+ w) _" T+ q% b+ nwhile [((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5 }# i9 X+ X! y9 N8 L
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)
( K8 I& z# [& l9 I5 v8 q: H* Vset j- u* }! t; }2 [. [
( j + 1)
; h* f# @& a* C: |( b4 s, ?) p]
2 R+ a; d7 n6 b1 N8 Lset [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 ))
* h+ O% F; C, n: } Y; d% Q3 j* ~+ d3 I" P' t( [! V) h
6 \6 G3 S4 o8 l B4 g M7 F$ o1 slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( \4 w6 ]4 R: m* ?1 h& t;;及时更新i对l的评价质量的评价3 o* ^" o8 J! h
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 ^7 x, Q' t+ u9 |0 J
set l (l + 1)0 u& w' a" T6 {8 ~
]! C, _ x* c! v8 Z3 u' e
end0 L" c( w J0 @, A
& t9 F- \: p+ @/ @to update-credibility-list
3 F/ X Y" T* i5 Alet i 0
6 F7 @$ {% ^' i0 G# v: O' w( Lwhile[i < people]; Q6 E: I* O1 g! Q; `
[
4 l9 l# x+ `& C8 y" F2 Nlet j 0
! i' Q! _. ^: ?4 slet note 0( A7 H& [( y! {; n. n. Q
let k 0
( `" J |$ Z$ D0 f, [;;计作出过评价的邻居节点的数目
1 j* p% u3 j4 v) x- `) y2 Qwhile[j < people]
3 s; q4 v0 k( x, ]& o% e[( \1 U; B: g" n7 D- d4 G2 L
if (item j( [credibility] of turtle (i + 1)) != -1); k$ s& U6 v- ~1 F+ R
;;判断是否给本turtle的评价质量做出过评价的节点9 {: W5 r2 s7 U2 T
[set note (note + item j ([credibility]of turtle (i + 1)))
3 J3 |9 E4 A" J, r5 [6 G/ Y' D' \;;*(exp (-(people - 2)))/(people - 2))]: d" f$ S. W# W" |1 l
set k (k + 1)
8 D, o& T7 F% }" s4 D/ p, @! v]
' J- ~* G% S4 X; _! Hset j (j + 1)
: V2 `0 t' n2 V& l' s" y8 w; d+ p]
/ N. p! q6 G) M+ w$ r+ Oset note (note *(exp (- (1 / k)))/ k)
, n5 z) H7 D# Y, A5 F( S- Z" vset credibility-list (replace-item i credibility-list note)! m3 _) s2 T. G
set i (i + 1)" K4 i3 ?; `2 M( ~# s6 B
]4 N0 n/ ^4 L: |- {
end+ T, }* K& ]1 f* a$ N
( b) C! x( J* ~! G- }
to update-global-reputation-list
9 |$ [5 r% k& ]4 x5 r& S# ` ]6 qlet j 0
- d$ K% l- k( ]4 ^, nwhile[j < people]
5 ~5 i8 f: M/ N3 e[8 L3 Y; b- A3 D; `# K3 Q
let new 00 J# n% ]) G u
;;暂存新的一个全局声誉
" R, i! c6 _- K* I! p% @$ o3 D) wlet i 0/ @4 i( n# e& k+ J
let sum-money 0
/ X4 a" L; g. H0 Klet credibility-money 0
1 {/ S4 l9 ]- w E- j; Vwhile [i < people]7 }) F \) L) G; O p# G- G
[
& |, e D8 b) g) g+ sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! f0 s" A' b+ d0 k- F& L
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 j& e7 q8 a0 T
set i (i + 1)5 z" l/ T' \ X1 ~
]
+ g2 B1 r: b [7 X' qlet k 00 a/ `0 d" C( P6 c* X5 L/ }
let new1 0
" ~& U% q4 K. p8 ]" j& ewhile [k < people]. e3 n) s8 m, B9 j! J& k/ w6 F
[
/ Z8 d; \* U% U! D7 I5 ^+ y% }/ S+ pset 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)
0 m3 T" p/ }( z7 a. I4 hset k (k + 1)
; U- {( i) I* x( D0 a; M]# Z- j, }; l5 |, v' F9 M
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! m) p0 J( a: U* Kset global-reputation-list (replace-item j global-reputation-list new)$ G+ U7 N9 W0 ]2 N+ ?
set j (j + 1)
+ Q+ p4 K4 K+ B4 T: w6 {( c% S6 T]/ n' S# {) n# _( s9 K0 j- l" ^! _
end; @2 F1 x1 K. L g
, k) g9 v7 {+ |* W
2 }, V* b' z4 B5 C: L% A$ ^ c7 Z. t) |" _( Q) D0 s
to get-color
1 |0 K: j7 ~0 m; k T' Y* u# N; B9 R) u; M) Z
set color blue- L8 r& x5 q+ D7 b P* a6 |
end
2 W/ U! o# O) p1 E; s( Z# R6 \, l2 D% }
to poll-class8 R% M: i' ~. P6 i( q
end h" {$ Y# T; h0 ]* @8 k
: l0 e! Y1 M( C2 n$ x [
to setup-plot1) j. @7 F& V! K8 F# F% u9 S7 g
# W; U0 b7 |6 [$ n& Hset-current-plot "Trends-of-Local-reputation"4 Q, u0 V5 O- I" a
) o7 z$ H- V6 ]6 @( _3 N. _7 J. g
set-plot-x-range 0 xmax. `1 | ]! D. c- r
6 [2 G* R' q: e5 n# W# U s' y' O5 e
set-plot-y-range 0.0 ymax" {8 V3 C e$ g0 @- |. n4 w0 @
end$ F9 X* Q9 S. l/ O; m& H7 C
3 ~9 w, f9 \# d# u- e
to setup-plot2" P0 f) S4 U1 N3 w" d8 G; A
- p Y+ L3 P: Z1 D' l3 B! l6 H% `
set-current-plot "Trends-of-global-reputation"
! f9 L6 m e9 Y* G- N/ Y' u x7 P
set-plot-x-range 0 xmax
4 N) s3 ?8 p3 [# Q8 s+ u
7 h) A: v4 S8 N zset-plot-y-range 0.0 ymax
& Y' j9 X ^8 Y' Dend
4 T) B0 o2 Q9 q' d; g9 `6 b O6 C* m. x" o s Q
to setup-plot3
6 i& }$ ?( ?) F& h; E$ q1 P1 i
. e9 Q# v- V9 G8 Kset-current-plot "Trends-of-credibility"
5 J C7 l: |: `; E7 I
! @3 [- J' C/ I5 {( Oset-plot-x-range 0 xmax
+ l: _& E7 G: Y6 e% O
! r) `# X( `5 u+ wset-plot-y-range 0.0 ymax, I3 S, m* j% H! j3 m0 o
end
* W. w/ _0 j% M' g% ^5 T8 X+ t
% g x4 ]2 N% xto do-plots: y9 B! b# ]; j5 } V j
set-current-plot "Trends-of-Local-reputation"
% _+ O4 o* |# K5 ~ [7 Kset-current-plot-pen "Honest service", h; H0 v$ c! @* P
end
6 f7 P; G/ p% Z2 q; _1 [, L8 N! t3 F5 D+ m! D Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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