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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 N/ n' `0 w7 ?, @+ ~1 tglobals[9 C. |) t% |8 o) L
xmax
# T9 s, G* b6 \, X' y. ?ymax
1 ]$ D* c: \2 m2 pglobal-reputation-list' c+ p/ k6 [' Z
. q$ T. B; N S$ p! }. W2 Y& y;;每一个turtle的全局声誉都存在此LIST中
) `# D+ O5 n$ ^! h7 Ucredibility-list
# q+ |& ]" m2 b4 A8 P; H& k;;每一个turtle的评价可信度
1 k6 t7 K1 j5 nhonest-service
) b! _3 s8 K0 X6 P& b7 T ounhonest-service; S. g) P6 B4 D( U: `
oscillation
; Q3 V/ u6 M: s6 u/ K) qrand-dynamic2 n9 V' L8 v4 p8 E" {. [
]
* |: U! N4 t/ ^6 s
; i h! e" G+ o' |9 t! \turtles-own[
( ]: r- L. J- l+ o, g- w( [$ R; d6 ctrade-record-all
1 Q8 \- D/ P/ U. j: u;;a list of lists,由trade-record-one组成) Q. y* q) E, w3 a) v1 B7 x
trade-record-one
, Z1 P) X( a' M* S( K7 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
& [( |% y8 r; R
9 [ {0 }1 s- j* p;;[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]]
4 m M0 `" U9 D9 Q- \& dtrade-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]
8 e: B* {" H7 Z( K# ^& U8 n7 dcredibility-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
7 |9 W* t; G* i# T7 S: Mneighbor-total1 B, l( P$ n4 _& E$ p2 u. u
;;记录该turtle的邻居节点的数目
6 r* _) K ~4 o# |8 C0 ^; I! xtrade-time
: _* {; `$ j/ d" j* h% ], O;;当前发生交易的turtle的交易时间4 m. @6 ]3 p0 C% J+ a# \
appraise-give
9 ^4 q% O- ^; A5 K8 } @+ n;;当前发生交易时给出的评价
w. Z; m8 ^& x8 p; a0 V0 gappraise-receive
) U* L& @$ z9 M' d& R;;当前发生交易时收到的评价
+ f/ A% |: ]! v+ Yappraise-time1 _" W# b, L7 e
;;当前发生交易时的评价时间
: U: g1 W9 Y4 `" h" blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: W: x4 i! }1 |- d- Itrade-times-total! A, @$ N- b3 L, i% d( C8 B
;;与当前turtle的交易总次数 Y4 h, o8 k2 m2 [
trade-money-total
) W0 m! X* |, y% Q; M* ? B;;与当前turtle的交易总金额) I f6 C: c! q: a
local-reputation* a \! F. |0 V0 q& _
global-reputation
7 @. ~: }! _7 e% G/ H. Icredibility
: Q, B( [. s/ u. U+ Y$ [;;评价可信度,每次交易后都需要更新
9 y, n8 }2 S7 b2 [/ l3 Mcredibility-all
" _7 W; T' e* u$ Y( f1 C;;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
2 D W# U9 Y- J& X
- B6 I5 X$ X* a;;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. w5 b, t" M3 o& B8 l. {' @8 w
credibility-one
( W2 N2 V9 q1 Q8 O4 ~;;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
! j+ {0 }: _5 C- j7 d; `global-proportion# {" F& J' v5 q2 l
customer/ ?: b8 s3 U! G" K9 a9 j
customer-no9 m5 U+ r8 N' A# w9 i J$ |
trust-ok
$ C) j# @/ X% h$ x5 ]5 Qtrade-record-one-len;;trade-record-one的长度: p, u9 x$ U+ y* y+ J
]
0 ?7 M) X- \7 E2 a& O/ P r- b0 y+ ~# ^8 F' h5 h) _
;;setup procedure
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) n- `1 s, b. e( t- ~to setup7 v( M- i6 R* X* `2 C% b
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ca3 m3 A2 v# u% j' r$ J2 Y; ~0 l
! G- Q% O6 u2 c5 M0 |: _/ p- Ginitialize-settings9 r# [- D5 y) X- }' U
# C9 N0 U% m9 F; T: A- B! F0 f* U- ocrt people [setup-turtles]* X; w8 x- J' d3 Q5 }# C
) t9 P* S. {7 z, D9 d" b! j
reset-timer
7 ?8 m/ @5 s( E9 Y# }" U, { |& o6 e8 q' T
poll-class+ s4 N: {* b1 m- Q
( l- T# a) ^0 K- [+ q+ o8 c; Zsetup-plots
( F$ D5 }2 V6 O7 y8 \( b/ t" Q. n S7 X+ M4 ~. e
do-plots, x1 J( k" `( l z" X+ o
end* Q% }4 ^ O# @: ]% d$ I: D
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to initialize-settings
+ Y& P1 S! A/ L( ]
! f. E" M, j8 ?9 X" ?& O3 v, uset global-reputation-list []* e" U1 f( s% ~4 ?
" \4 Y0 Z4 Z' B6 S2 Gset credibility-list n-values people [0.5]
- b; R0 y; X6 p2 d% a" _# d1 s+ }6 ^) G
set honest-service 0# N+ e% v2 h/ }8 Z/ ~3 o
& e2 P+ x+ E* f& t& U; L% ~set unhonest-service 0! A0 W& I5 N2 ?0 E
- a3 m5 t% ]/ zset oscillation 0
( Z0 W$ ]) V3 s2 Q4 P
" r9 x& w# Q% bset rand-dynamic 0
. |! b" T& X& p) @" W5 c( rend4 i( k- i" z+ `$ ^& W
* k( `7 F' ~/ ^% I; j3 b- B5 ?/ M
to setup-turtles
+ s$ e8 T5 D! `. ?) u1 B9 qset shape "person": c; b) z2 i: ?& @! Y; ?" Q6 M
setxy random-xcor random-ycor
8 ~. [- z1 e6 Y. O7 K- r6 rset trade-record-one []! N0 g$ J8 q9 u/ o7 }; \
8 L* {" I; |0 S- Q9 Q$ {
set trade-record-all n-values people [(list (? + 1) 0 0)]
7 W" V$ S- R1 h" E
7 a; I1 U8 v0 M4 T9 dset trade-record-current []
w7 _* c5 \' l7 p/ m( Jset credibility-receive []
; s5 {0 |) f. uset local-reputation 0.5
+ C2 d, M V' s! _- Uset neighbor-total 0( ~" V7 s& v2 r* Q5 v. B9 P
set trade-times-total 0
" }& j6 E! [5 n* W9 k- ]set trade-money-total 05 o0 o% s. ^$ x7 {) ?/ y; x( _1 v
set customer nobody
& }0 f* d5 T* ]/ w( j: Q, Uset credibility-all n-values people [creat-credibility]& {7 m) x0 Y; f3 @
set credibility n-values people [-1]
* m x% R. J. c+ v j% H+ _( h1 oget-color# J4 }9 S3 n# ^, Q' ~( G% H
$ U+ t- ~% F$ j, e% d- p7 w2 A! Nend
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to-report creat-credibility8 O) ?( g: \" l8 U2 q6 Z
report n-values people [0.5]' h6 m2 C' L l# M' C1 S5 |
end+ q; F8 b2 @0 v$ l: @6 h9 A4 Q9 U
4 [: r6 [2 o K, E
to setup-plots; ]) R3 H; \; u6 P7 c q* F& ^
" b; a9 t9 u! Oset xmax 30+ I5 _, T' c# `4 f; o2 g! s
- M; g% l6 G2 Fset ymax 1.06 \" F ~ l2 c5 P
* _) ]) K1 U- gclear-all-plots8 v& H1 V5 S, c# G8 C9 K( m+ y5 x
( r: M t, x0 d) i: ssetup-plot1& ?; m$ T6 Z8 i, c# d
& R* w- e. g8 ]4 D h
setup-plot2
: u& z9 u1 B5 ]3 g s/ U. o6 x
; f# _( M" B# p+ N' Y8 n6 Esetup-plot3) S6 M5 J. Y: K: H# D
end: t- s4 }7 J: s- ]
% n* I( @. x/ x' b( p2 W# |# o
;;run time procedures5 U* g# F' F% O% R, r r [( {$ p
% |( e# F/ t# m# ~7 G2 lto go+ Z) Z( F/ o9 G
% b% J/ ~: M( T$ mask turtles [do-business]- B% @1 a) `: r; r5 X
end
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to do-business
4 {- C1 Y5 H9 l- E! Z$ r' Q' P# N% O
* J3 G4 V8 C. Y9 t; Q3 x% p4 S' |# L% f
rt random 360
" V; Z2 @% J% u3 U5 b
( s9 K$ Z4 B" a0 Qfd 1
$ L3 Y+ x1 w: L! T8 k& Y' \7 Y* @( {/ S: Q/ X9 k6 @! n
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here4 O* h5 v4 s1 s
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;; set [customer] of customer myself
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' g2 q+ t, C9 F3 a, eset [trade-record-one] of self item (([who] of customer) - 1)! B9 ]. C: G0 [+ U5 n) Z* L
[trade-record-all]of self2 \. r0 a& t6 g6 t, x- D+ e; t; d. g0 z: b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) ^0 W0 N3 d7 m
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set [trade-record-one] of customer item (([who] of self) - 1)
0 x" ~: c; `$ C m[trade-record-all]of customer% k7 _8 r4 M& D& g( P1 @
8 f) P* d7 q1 Gset [trade-record-one-len] of self length [trade-record-one] of self5 v( L* Z: V W7 a( n k0 ?6 |
; I; _ M, e6 R0 n5 T" M
set trade-record-current( list (timer) (random money-upper-limit))8 @ w* g8 ?" \0 S& Z
' j/ @6 V, t4 o6 ~9 t( z; }ask self [do-trust]4 \. d9 z6 u3 O- i- n+ D8 @7 Z% \
;;先求i对j的信任度
% L3 U6 t W( N4 T, R1 x& R: E: X/ i" d6 Y/ C
if ([trust-ok] of self)
2 K& H. Y: M7 A- g7 Y;;根据i对j的信任度来决定是否与j进行交易[
* u; x! I6 Q4 j4 eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ W B4 T1 |* {6 d8 C9 K& } e
; ]' B1 q+ I* t% e3 C, u7 {4 p[
0 K6 g! \6 Y1 U+ h) d4 ?# G" U* m% ]0 z! Y0 w: t9 E! v
do-trade+ R( R; l) _5 x# b" S
" k6 d1 B8 D/ m6 B& ~) t4 r0 D6 D
update-credibility-ijl8 ^# j8 F# T+ e' v8 [& y
* e) u& v0 D5 g8 J; C9 o$ Xupdate-credibility-list
% g: a3 L" v+ k$ ^ ?* d' g" u3 z, @, e( K& y9 b8 n
! r2 [9 H* w, z% _: n
update-global-reputation-list
( Z6 q' B& Z6 e$ i! k( n+ a; M, A$ K% D. \+ w3 A. B/ n) x2 m
poll-class8 w$ W' ]( ]8 w ~3 N
K' Z$ w! X7 R1 L$ {: g+ f [" Nget-color
' }) C: S) s0 i. T8 e! O/ ]$ I4 \* N1 G
]]* Q7 E5 }' I" k% K+ g) R
' k* a9 }/ j+ k/ o; m0 {+ w
;;如果所得的信任度满足条件,则进行交易
s i" H, {5 `2 \3 u
: W9 y9 N' w+ f/ {4 i% d4 m[
% A! `7 }: A) ^
. x. c: ^4 T& T" r( hrt random 360
0 r \; j5 i" c# B0 X* O( t' r4 w$ Q, ?( F
fd 1. W1 A) |7 Q7 A0 A# _2 X5 _
6 R: M- w. f; l$ u, Q+ z: s] d- T5 X% b( @ ~ t3 o, ^
: W. ~+ ?& j" v8 R! Y8 b) Z
end
, n/ @ I. G- p$ e* y! E5 W h G+ M: Q1 t: {3 H9 |4 K: J* N
to do-trust + D9 j) D6 b' j
set trust-ok False
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0 z2 Q5 u/ F% F1 {
let max-trade-times 0
6 e" U4 _3 D% Q% N' Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ q6 @4 ]9 N/ q! H& Q
let max-trade-money 0
8 @; i; Y N5 p, t& N4 x2 {# fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 y( M) M9 s9 r8 ~ S% j$ H$ l
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# v" [( e- ^ U9 {
; r! }. }" t- Y% W' {3 t9 X: h; Z5 R0 h* ^" Z$ S# y7 A
get-global-proportion
! b4 L' _- z' n" I4 h5 dlet trust-value! J' ^# ]8 C1 Z+ a: [6 ]/ C) E. T
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)4 g. _" ?, q% K6 c7 J
if(trust-value > trade-trust-value) C/ _! P2 Q# J* N& ? V- L
[set trust-ok true]
4 Q! i2 N4 Z2 b/ dend
/ J, c* F: ^& j# v+ y& j+ d
0 {7 v6 y) E- Oto get-global-proportion% @9 P% V4 u; o4 _
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' o3 o( O; a' \9 {6 o% |
[set global-proportion 0]
% g% c/ t1 ]9 \3 V% H! w/ ^7 n[let i 0' f( X( W& t) X( e
let sum-money 0- ?+ ?! v8 l( \
while[ i < people]0 O: y n. w5 R' S2 I5 G4 u1 t
[- y. d0 P4 l+ |# x1 J) o
if( length (item i
, z$ m, y( ~9 U" [- o8 q0 `[trade-record-all] of customer) > 3 )
! {: Q$ g' M: z- h8 P$ Y[1 I! |1 }- p8 F* J, e& Q3 O7 H
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( z6 C9 v! x1 ]9 H]0 j6 F9 | X! a0 k# k
]
6 t+ B4 `* ?6 G+ I( a7 flet j 0
- B0 M1 A: ?; p7 o, o0 l3 O+ Plet note 0
: J" @8 k( G* O% q. k* b0 ?while[ j < people]- s9 q: U& W4 r% {* G
[
_0 T8 M# }+ L. @9 |if( length (item i. x1 {% J: L4 g2 S" V. W
[trade-record-all] of customer) > 3 )* a: w/ p+ n+ H
[& c9 ~: b$ _/ y, A8 g9 N
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& g3 A- i Z" a$ z8 Y' v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: u0 ?9 u8 G: C8 U. A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, S& H n; p* @, `5 @]
2 T/ q+ u' P5 l4 ~/ k, [0 h]* g3 M3 m/ B" ]
set global-proportion note# B) H$ M" P. F7 _' I0 }
]: [1 Y$ N: @& X& E
end
3 ?2 E7 Z0 \. s1 u4 O
- J; b; ]' [5 P' ]to do-trade- f4 L6 r' I) h7 j- e' v
;;这个过程实际上是给双方作出评价的过程
- a# b5 B! v* y5 Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 ~- E2 a5 `0 g( F1 Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 E+ s" v/ N* s3 Eset trade-record-current lput(timer) trade-record-current
4 R' B: _) b2 S; v6 z;;评价时间6 S# W/ ?, g. i
ask myself [
5 m* [# ^4 l4 V' k! w2 o `, Pupdate-local-reputation
p; b( D6 c6 P8 O3 x7 G2 ~set trade-record-current lput([local-reputation] of myself) trade-record-current3 t4 F( P& O. t' g; i9 ~1 {
]5 [# y. n* q3 z B4 h; [( V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 u. C+ w7 s" Y2 u( };;将此次交易的记录加入到trade-record-one中 H4 n1 G ]4 S+ E+ `) k9 |/ V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 T% K' [( i' T& f
let note (item 2 trade-record-current )
+ S* n$ V" w. hset trade-record-current6 [+ W5 R& u) X
(replace-item 2 trade-record-current (item 3 trade-record-current))3 G' [ T& p: m
set trade-record-current6 t! k# I. x8 ]$ M/ y$ ~
(replace-item 3 trade-record-current note)" ~" z0 R* y( p! T4 w
( J I) ~' d. z
) j6 f6 B& D$ E$ aask customer [
' |& e" p8 `5 v$ W# jupdate-local-reputation; E. y5 L# E3 P
set trade-record-current
7 [, z" z" @$ j; I0 B(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ d- ^, E5 }" x( x]
( ?' j: L! m% ]1 Y/ N
" Q" U5 j6 q$ i/ ~' w0 n
- z$ y+ |/ _! ~) b9 r* Q3 _set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 f! F# Y! S! S( c3 c; {& k2 c: _+ w0 Q8 \/ a% c! n. J n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 f* {: Y& r. ]0 b- D$ @7 ~% ? K
;;将此次交易的记录加入到customer的trade-record-all中& n7 Q _$ L( Y/ Q) B
end
: c" q5 w8 T9 D0 \9 h r% H" m; O' ~# f7 U8 ^4 o. L
to update-local-reputation
( P2 K& @1 h& T/ D/ @set [trade-record-one-len] of myself length [trade-record-one] of myself9 u4 l9 v9 M6 Y: [
5 \! J' R% O! z& L& l1 B7 |: N& b2 O. G, C" n
;;if [trade-record-one-len] of myself > 3 7 r& h, w7 R2 m; L5 |
update-neighbor-total
8 p7 K: [! A% ~ u! h+ h;;更新邻居节点的数目,在此进行
8 X% j: V7 l5 v+ E X* w& ?let i 35 |1 S0 _! b$ h% W+ p% u% g, u/ e7 u
let sum-time 0
# T4 Z1 j- \: wwhile[i < [trade-record-one-len] of myself]' g N, X. j. U0 Z# W
[
1 o2 M3 g4 V1 O. Vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 i& I/ ?+ `5 z' G) Q5 pset i
6 S4 z2 I) f) y3 l, P) m Z b! |( i + 1)1 C: k1 y7 K& x$ ~1 l4 S
]
; h. I# [6 \+ n) G2 `let j 3
# r7 _! l# t. `7 M- ]! Hlet sum-money 0
! D& a: l6 f- ]9 ]7 Xwhile[j < [trade-record-one-len] of myself]
9 t7 Z* j# _' K/ ?[
! R1 c- z, `) i$ Mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time): O8 \4 A7 B' y. M1 t, x: q$ J8 N
set j" H# s6 j% _: r5 d
( j + 1)
% A# [' b/ i5 G; K( ~5 ], r, g]
% p0 |0 T4 _) c% a# @1 b+ f' Olet k 3
g! @9 k$ F+ O- u0 t# @3 nlet power 01 g% [' _) @9 L5 }) T5 E4 h0 ?
let local 0
4 @" {, S6 E+ v( \! T3 ^while [k <[trade-record-one-len] of myself]1 a* X) |' ~* Y/ U
[" \3 p4 G) n/ W/ {2 V1 }( t( 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)
: P" {. ~0 X1 L1 Q) g" u% ^( ^set k (k + 1)
2 u& F7 g6 F" Z9 ]% {9 p! @0 o" B]' v7 t' `- N: L/ t
set [local-reputation] of myself (local)
6 {9 W {- T& H# F4 `: l _7 W( uend
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 G' o% l' b% F
1 \9 b7 C" t/ X+ h" h8 W0 o
9 {/ k# o1 B! d& Y) h! k# |* _end
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to update-credibility-ijl
7 y% a% e+ ?3 y! @" {3 T+ H6 q0 g1 X: G5 k5 ?$ b7 d
;;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。 \# d: l( U) a6 s( |4 L( Q
let l 0
' t3 M: v7 V; o. S# n X/ t9 @6 Qwhile[ l < people ]' g% R3 _/ H7 u7 L
;;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
/ S3 o0 Z& q6 y/ t" O[" G$ b% ~5 O6 s& t0 |
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- w2 C7 r+ P) j3 R( K" ~
if (trade-record-one-j-l-len > 3)& r$ L! s/ k" d* g
[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
^1 Q$ |2 n: T3 p- x- m5 dlet i 3
: Q" A8 a. `! `' Y) b7 D1 Flet sum-time 0
' @- Q* ~5 r( U2 Jwhile[i < trade-record-one-len]
4 ?7 n. i0 e6 b3 x7 ][
; z8 v. ]* i5 S, b8 A6 Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 g) T7 c0 G5 I, q$ L$ Z( zset i
1 o, H+ |4 c# `6 G( i + 1)
( }1 N) R- o0 a+ P]
R$ z- [ W7 j/ f6 Hlet credibility-i-j-l 08 o, K9 h+ V( g6 x; S
;;i评价(j对jl的评价)
; m+ N' u& t, E& ?' o& Olet j 3! m8 K( F' Z8 m" F/ M* Q; D6 U% E
let k 4
+ v/ e. q0 w9 n9 X8 t; twhile[j < trade-record-one-len]
0 i7 l, ~# _; q$ m[
" T+ A; g6 \! g, Hwhile [((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
# r# F! b- F% j# E3 U* e/ Bset 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)& S8 f9 ?4 X! d! e+ h m0 l
set j
$ y! v) I0 @# Y$ j+ O( j + 1)
; o+ l! @# Z) L& H]
! T; {( J8 I# x4 y D4 ~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 ))
* ?1 j; h$ j0 T* Y- h) g. u
. z6 F+ |9 { u7 f7 Z
+ A) v6 Y) F5 ]let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% y1 y/ V$ R' m5 I. W" N0 D
;;及时更新i对l的评价质量的评价/ t* A! B9 R* @$ G$ a6 R+ p7 |
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 x8 R: }+ M, `set l (l + 1)2 n0 A" P9 H5 e6 H7 q
]
3 @: w7 H- @ C& v! |: wend( D) m4 L1 ?. Z q: D% {5 e& h
/ g4 a' Y3 k' oto update-credibility-list7 z. J& X, U2 U8 h( d( E& w- ]7 ~: n
let i 0
7 B# y( X1 M" [/ @ {5 C7 kwhile[i < people]- _, r6 U6 |4 A/ U
[
" E/ ?6 c& T* y+ c+ |let j 0" m) o& E' a" |
let note 0
* I) y1 j, b2 f5 Llet k 0
; u& H6 C: i' ^! p0 |* q+ H/ Z;;计作出过评价的邻居节点的数目
+ {7 `6 ^5 f& M0 a: kwhile[j < people]
; v5 S) B; R5 g$ x1 z' i[7 x( }6 {, [/ m% ^* C4 E* n
if (item j( [credibility] of turtle (i + 1)) != -1)" P2 U0 m4 N# h9 n) f z
;;判断是否给本turtle的评价质量做出过评价的节点
( P8 _: y+ w7 t O( F/ |[set note (note + item j ([credibility]of turtle (i + 1)))
9 |" `9 c5 ^/ Y: U0 h;;*(exp (-(people - 2)))/(people - 2))]5 D" {. k" j$ X3 T5 L# t
set k (k + 1)0 ]- {, @' [5 N2 z
]
y# [( T6 u W5 T# B) ?' r: Eset j (j + 1)
% g+ M- p2 F6 w- N: j7 Z9 k]# w" N- x% O4 U- p1 d3 X
set note (note *(exp (- (1 / k)))/ k): i( L' d8 q7 S+ S5 @7 F
set credibility-list (replace-item i credibility-list note)
: E; ~2 M8 a; ~! k: P+ H. Xset i (i + 1)
7 d% ^# S1 c: i5 ~/ G7 A]) W/ Z/ E& G! ~" [9 @
end
) @6 j5 S+ X$ W Z! U
9 G; t) E) s6 |% J& w) fto update-global-reputation-list& Y& I+ X4 F, z/ W
let j 0
' i) s4 W* _; f* d8 }. Z" Fwhile[j < people]# F" U S6 ~1 ]$ @' D
[; k: P/ f; t* K) C# Y
let new 0
$ K" s4 K9 s: E! s% B& A1 X3 ^;;暂存新的一个全局声誉0 J9 w& A$ r, R! c2 G
let i 0* P1 ?# b9 x/ Y0 C$ N
let sum-money 0
# o8 K7 K$ Q b. X4 Xlet credibility-money 0
4 o5 s4 P; e# M; r H& X9 ywhile [i < people]
# M3 @$ e. u- F$ U ^) @[, V' K, o* I/ |/ u& }$ L6 V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 p! \$ I( [, P' y! y- k9 j. w4 V ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 I- _8 J5 m9 E& `) p) d; }
set i (i + 1)
7 l/ ]9 v, x1 p8 L4 N$ D]- {7 ?# g& s; B
let k 06 a8 p/ U! M. |$ r+ n! v
let new1 0
& j( D' r5 q4 t$ i& z+ `while [k < people]+ K, L7 q a$ |; Q9 y' r
[, g; O# [7 e+ n2 s [
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)8 r: `" u( F! k" m1 c) G
set k (k + 1)0 k' t; w1 n7 w+ ^
]
* q* H2 o: h8 U/ k3 l& l* [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 ~. H) Z2 X h2 |( Wset global-reputation-list (replace-item j global-reputation-list new)& S5 q4 U5 t3 g( H7 R& P1 n8 r
set j (j + 1)0 e% Y, H$ a" d/ z' H s
]
7 i8 W O5 c3 H% I8 E5 C+ Pend _9 G* L# W- t# d
! c) m! c: f1 z+ L" K8 y: H" Q0 i
9 d. u( e k7 ]
! T% I! j2 y7 z
to get-color B5 S7 [1 |7 _5 p- O1 J
& Y, w" C# u" f
set color blue! R! R' v" m$ U! U7 d9 ]9 i
end* T0 u" q! Y: S: R
( J, p: J! k" x1 b/ v3 z$ m9 Gto poll-class
9 f B8 @: r# h( ^7 [0 iend
+ q% N T- K! X; R7 M) t
8 `) u' G" J' Q5 q9 E) E+ Hto setup-plot17 {4 b' u: ]: W* b3 V
+ ?) ^$ u' {" G- x# ?set-current-plot "Trends-of-Local-reputation"
$ E- U/ L) U9 b, i. v ~( q* g% _2 ^6 h+ v
set-plot-x-range 0 xmax
! n6 q8 t6 g: G( M& x' F: W% Y( w( P- a# l
set-plot-y-range 0.0 ymax
1 W: V' y0 ^! s4 L: i2 ?end2 ~. g a! n6 ~9 y6 r# L# o8 V5 \+ N
3 A9 S+ ~6 c+ u4 _; S% X; Jto setup-plot21 @+ @8 ? Z4 J% u
4 P& O" N2 Q$ y. ?
set-current-plot "Trends-of-global-reputation"% |7 @) o4 o" j. N0 a2 H
7 D3 K8 Z& @9 c: I' ~; b
set-plot-x-range 0 xmax
4 m3 ]! s- z$ g" z+ M$ u* c9 R, k
set-plot-y-range 0.0 ymax3 G- C+ B7 n/ q' v$ B. \4 w( }* }
end
/ p( ?- ^. V- c' G1 w; E o2 |; k) y. M: N; v' {8 v3 e% r* D9 n( A
to setup-plot3
# M$ `* w* P6 b" v) c, O
1 R/ c5 p @: x( p) o: Hset-current-plot "Trends-of-credibility"
) d+ D) A X" a8 v/ g& T$ C6 A, Z0 z! b9 T" y/ n0 t
set-plot-x-range 0 xmax
+ j4 t N: o( W; `2 k, e# J
7 M/ o7 A2 d7 A3 J% h# f) Fset-plot-y-range 0.0 ymax5 C* Z- @! G) g
end4 ^. @, e9 k) V1 S
5 f+ | q5 z4 Y' g' [) a: s% z
to do-plots; i$ R% s8 z4 z. s0 \0 J& Y
set-current-plot "Trends-of-Local-reputation") y( A1 L. b- X! \
set-current-plot-pen "Honest service"
9 F: S k" e7 d) Z, Kend& `( ` x! K8 `1 r' y7 E- j
( y. y6 ^/ G: V+ k+ s/ A$ [1 d1 m[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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