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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) w( D: p# i5 q' a, E9 Q
globals[
4 X/ Y2 l; v, }0 s1 m7 f6 u( Bxmax
* o0 b& F& f5 @+ j- Dymax
5 ?; U0 `# [8 r+ Oglobal-reputation-list
) }, T/ E; o/ w, K, t
' {* N2 S, Q' ?" t;;每一个turtle的全局声誉都存在此LIST中
F& A# i$ s- m+ S* h1 D7 Jcredibility-list
$ o( z9 W- i7 S. L6 k$ k;;每一个turtle的评价可信度$ [4 Z: W2 ?" ^2 Y5 v3 O& k$ `
honest-service% [* F7 `) w8 }; A/ V, q1 F
unhonest-service
# y5 l3 @6 |; Z: L& R Aoscillation
4 d5 Q% F" n" U" ~# ?rand-dynamic
8 @! ^4 y0 O; L, p]
. ~% W- r) q. {- }1 c
: O. Y( w& S" R' Oturtles-own[; A- d3 }" a6 @* h
trade-record-all
9 B) O: z' _8 q* g; g+ w0 D;;a list of lists,由trade-record-one组成: ~4 J1 G1 q# y) D( I- R
trade-record-one
3 o" x- K' w7 ]$ y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 _0 m9 V! r( B1 s, [: i5 J: {$ Q d3 W3 t
;;[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]]
( ~6 e, y( d1 Atrade-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]3 C: p' f5 C% c; Z6 a
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
& E3 m: y$ r, Z% p9 R! O! K/ A) ineighbor-total( { a) X3 N U w+ A& @
;;记录该turtle的邻居节点的数目
" ]2 R/ [7 a+ `/ [( O- j. gtrade-time* s) h/ w4 J6 `3 z7 `8 y+ r5 G$ I
;;当前发生交易的turtle的交易时间
9 r2 J+ F* l Iappraise-give9 m3 B0 |& d; k: |
;;当前发生交易时给出的评价
8 T7 q4 D, S7 wappraise-receive1 m8 ~# |% X4 E1 B0 v4 P
;;当前发生交易时收到的评价+ e: J, c$ f9 p; S$ d7 Y" w% S8 I
appraise-time+ C, B( Q S) q( \
;;当前发生交易时的评价时间" q7 }2 \+ K. ^$ J+ }
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 y' B& ~! ?+ J6 m
trade-times-total
- n g0 F8 q+ m1 ^$ y;;与当前turtle的交易总次数8 R7 v0 K$ ?9 Q, {: O' S- r' V
trade-money-total2 z: @, ~) l( w& f/ N- K
;;与当前turtle的交易总金额6 v* H& E3 Q2 n7 _ R2 Q J: |
local-reputation' z% Y6 X Y' g% C# G8 X3 \: A: E
global-reputation
7 Y& ~% Q3 X0 |7 kcredibility( Y4 v* m& \& c) ~/ o
;;评价可信度,每次交易后都需要更新" x, ?# P! j' T) v6 \( C6 C
credibility-all/ d" [* v' ?8 T& M- W, n2 D; j( t3 A F k
;;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. b7 ? {) `9 v# v! ]. F$ ~
% y$ O; m `5 m; e+ R
;;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
- z$ _$ F1 r D% O& s2 pcredibility-one
$ z) D% ?1 J# c; L;;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
) B' {7 ~$ K* |( a yglobal-proportion+ M- w9 m9 ], ~# E
customer
+ M( z/ C e; Ycustomer-no
0 g2 S& l% M7 d1 Ctrust-ok. ^" L" V! W; U2 V2 |: E' ]
trade-record-one-len;;trade-record-one的长度9 Y- B- U+ n, }9 B/ K1 M
]1 a4 |: [% N* `, [8 f3 f9 Q# q
, `1 a# T! v5 v7 h$ J( E3 q;;setup procedure
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to setup
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ca. f$ |; N+ h, G a6 q
# [8 o) d& f6 z2 k
initialize-settings/ E; c3 K" R0 J7 c) R: t8 N
, r% u' U9 X- u$ J
crt people [setup-turtles]
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, U2 u0 U7 U9 J* ^reset-timer
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poll-class( ^/ ^. [9 f7 g! U% x6 ^) a5 C7 d
{2 U( A9 ^* p: R
setup-plots
! X1 _$ E+ M! P8 T) X2 H5 D
# F4 u# [: ^' x0 n: odo-plots
" E, V9 s: S$ N* _end
. g/ R) s& ?# g3 a8 A8 U" p/ h& w! O9 R" P' i9 i9 H5 w
to initialize-settings# L+ X4 m6 h. v/ `1 C- N2 n
8 I; Y% M7 [" O) D- w
set global-reputation-list []# D8 y& X8 V3 Z
5 L4 {) R9 C% \- d
set credibility-list n-values people [0.5]% ^6 H* S" b3 Y( b3 b+ z( P9 A
& z- W7 Q, m" q0 X' G6 G" ^# G7 c/ s
set honest-service 0
8 ~8 G" D) o, t; t/ I% i
% v; I6 N) a9 B; ?: s, qset unhonest-service 06 h0 d' W9 ^2 f6 C
0 u* C* ]# N, b' I1 ^ j
set oscillation 06 {% c, s' S: S1 x2 g
; Q$ H) [& g: L& s! D2 ]. h+ ?6 cset rand-dynamic 0
! L. t3 n2 ?( Z8 l" s) v# Y: g! Eend
5 Z0 O: G" D' U' B- E& ?$ `- ?, D9 f' x. e. _- t
to setup-turtles
0 S1 ^1 u1 g* W# A/ S0 E% ?; Eset shape "person"1 y/ X1 \; p1 \8 y7 J
setxy random-xcor random-ycor
: \ }( t/ @( p% I+ jset trade-record-one []7 ?. q: ?4 l0 ]3 N
% g9 j0 |: t5 s
set trade-record-all n-values people [(list (? + 1) 0 0)] . w; Q3 d6 r$ }5 c, x
' D8 q- `5 n/ y7 Y% K Rset trade-record-current []
( X/ i8 ?. a' W8 z1 ^, e0 n: G+ B* Tset credibility-receive []
# `- l2 U$ F2 Z9 _set local-reputation 0.5
5 o9 p, j/ v; ]set neighbor-total 0
5 I1 V5 S8 A* b S6 f: J* H0 l* q0 E9 y, eset trade-times-total 0
$ t0 F! [) Z! k) ~* jset trade-money-total 0
/ m5 Y1 L" U( f; G, G' E0 ^/ Y& bset customer nobody. V1 e, ]* G, L+ T& n+ S9 Z
set credibility-all n-values people [creat-credibility]
3 P! b N* M. d+ jset credibility n-values people [-1]
/ }5 E6 O( R- U- U; W& b) iget-color
{3 O5 F$ l3 H7 z- Y9 x5 p; P `6 Q, x- H( H4 v% \! [" S
end4 j( t% ^# u: @( q, }2 U
2 O: B6 [8 C4 m! h8 f0 Sto-report creat-credibility5 M: l6 G4 R4 d2 d& Q
report n-values people [0.5]
8 I6 G$ n8 b$ s) E4 i! ?0 |- V" @. mend; p' Z }- D# E. C
0 z: m2 K( C7 x$ \: F; T2 ~" D9 e) Y
to setup-plots
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set xmax 30
! |8 ^) F4 O$ p: h% ]+ D/ F2 @% N' J8 L' o7 x
set ymax 1.08 U. M' S9 k& d
2 K( ?6 i0 x3 p- t
clear-all-plots
$ j2 s6 x0 X) G7 ?) f/ u5 u) _+ ]$ l; N
setup-plot1) x) C; @* m. m, s! J$ I
% a2 b1 V: j/ n, g5 D
setup-plot2
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setup-plot3
: R6 j+ y( H$ a: a* `) o: `end
! {6 i: c4 Q n7 }1 x j! M% P/ g
. v( ^. d) g, W* t- l/ e: D* N% Y;;run time procedures2 e4 W6 k/ n+ r4 V3 n( G
5 O1 X3 \9 n7 r# {3 b1 x
to go5 l7 t- K4 h. q! s- P
- t# g) o, e0 `* ~+ F# @9 B
ask turtles [do-business]6 O* J9 M: D1 m& `. n
end
/ r' P7 S/ T+ i7 ?( v, \7 r9 j, G j
to do-business
& V# r r5 f: p$ L: i4 }6 h8 S$ n5 u$ |4 P R
" x0 i2 H; m2 y
rt random 360
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fd 1- \/ p, J, _' @ Z+ s" X
' x6 _& s$ P# a) A3 m
ifelse(other turtles-here != nobody)[
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8 d& I- z9 l: y: s% ?+ N0 Cset customer one-of other turtles-here
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" \! g$ ?+ h( [# J' ]8 V" [3 q;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
- D1 P9 s% ~& }4 j[trade-record-all]of self* L$ L3 x- I% w
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% j5 B6 l" b% E4 A/ m
7 W: Z' A- N& U5 kset [trade-record-one] of customer item (([who] of self) - 1)4 K% Y8 z0 m7 v, f0 t( [' j e" U
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self. O( `3 \ o& S) z
! B; z* i- D+ o! a& Qset trade-record-current( list (timer) (random money-upper-limit)): d6 R% j2 n* O; m% p3 B/ X
: _ b3 z2 D5 ]/ g
ask self [do-trust]
& ?4 A; X) k: v7 a' Y1 h3 j;;先求i对j的信任度
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if ([trust-ok] of self)6 S! C0 M, ^7 y5 d2 l( Y
;;根据i对j的信任度来决定是否与j进行交易[/ O# }5 O* o6 Q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
1 d, w1 |7 l4 j2 a5 i
r% O: B3 e R, s3 z- ?0 z5 I6 D& w3 rdo-trade
5 f" Q0 g& c5 p! H
1 W8 h4 `1 M, w1 o# Tupdate-credibility-ijl o- T! B* r+ l0 t2 B; I0 ]& E
. d6 P8 E0 T% Pupdate-credibility-list9 j- S$ O+ P5 I
t: T& P% A* P/ \
4 K/ I/ _ S Q% A5 a& T
update-global-reputation-list; u; }5 I4 V, t7 p* V6 t: d) [
! W3 c; |9 K1 @1 f8 gpoll-class1 H, \% C. |% N0 g; o7 X
3 Q! h0 K! C- v D0 `1 {6 Wget-color
1 e' m% F+ I% n7 Q6 U8 _0 h: \5 c: V& ^1 T, Q
]]8 J8 |* I% F Z- q
3 |2 ?3 ~. J: g+ d) F5 I" p
;;如果所得的信任度满足条件,则进行交易
- W& D" ?& X% K9 t. M
6 k0 g8 m4 H) k[6 m% l4 f9 {/ h( S1 w' S
# P$ v; \* B) X# }( p/ Srt random 360; m% g1 @/ v$ ~; R& f3 F
" x# V7 z2 T" O5 }# {fd 15 v% V' y1 v7 y& b* B+ e
" S) n- d9 m, A! ]7 f* {9 U) i
]: V; x4 }+ F+ p. d
t4 U2 F) |' Vend$ P4 n# m% _% j3 `' w! g
3 R5 B& Y r! A6 x1 `to do-trust
5 L6 y' ^$ f6 m, M6 s: D! n/ tset trust-ok False: {4 ?# A Y" \) N) h6 w
, X: B( p# P9 ~9 Y0 Q. f
" p) \- F& s. I6 c; E, g) Rlet max-trade-times 0
) {* Y6 r; G; Q, Y. k+ Z1 Fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ e$ @5 H. \/ ^& F3 c! M% _4 }
let max-trade-money 0! |: s/ d4 m% B2 J% F) l
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 B" g% |, \$ k( p% i0 Y5 Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), s% x1 `, }+ K( J
' v% M" A) R. x! j% ]
) s4 ^* l8 S/ z' T& j0 O b
get-global-proportion
$ O& Y$ V+ W+ o6 h( flet trust-value w5 X3 O" \- K, v1 o. L
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)
) C3 b% J1 J( f8 ^( O% `$ j- \if(trust-value > trade-trust-value)% u; F8 n' F. E6 a
[set trust-ok true]5 L0 W* v$ r3 u v1 d9 y
end
7 i; O1 _7 J9 ^# J+ R0 H. h- Y7 {' a& B: L- K( p% S
to get-global-proportion4 x. P: n) G5 J( V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! i4 H" W9 Q& V1 ]; f7 b[set global-proportion 0]( i/ W, `) J6 _0 L
[let i 0
0 d: @, k$ L4 |) b4 Zlet sum-money 0: {8 J, {$ p/ `8 B. d) |* w8 N+ u
while[ i < people]
% g( z; m3 A% c x; ^: l[
* C/ o/ p0 e7 \, q6 Cif( length (item i
J1 {1 {. _5 K0 C, ][trade-record-all] of customer) > 3 )- H( R. v- e0 o8 h2 R6 c3 n
[- o: D! t* m) z. v8 A0 c3 q. ]' I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* t$ {. n& v: s }5 H) s]/ E1 w0 r ~( G: O$ Y
]
3 G N6 Z; k# `+ ^3 F' q0 x7 Olet j 0
1 }* G+ V5 _! Elet note 0( {1 \: T2 V+ f" b% s9 h
while[ j < people]
, C+ ^7 n. L$ j( W+ G. z6 f- |[
1 y0 n6 \% `7 p* m$ Y* {5 Mif( length (item i
( k' p4 ]6 h j* R[trade-record-all] of customer) > 3 )8 o: k S' E. _: |
[+ n! q. M4 p4 A% }% H+ J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) l' j. ~0 i) c% y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# V3 ~. o5 T0 C7 }+ u3 ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 U- n9 D8 J' f0 G* h
]* r# m, U; Z0 |4 T. s4 {9 B6 n
]3 N* [: G _7 m
set global-proportion note
7 Y0 I- b% Q: L3 k' t]5 K0 u7 {: y5 w; F
end
: H0 x8 T( r' J# w6 V
- E$ D. y3 {* A: q5 uto do-trade" q+ z b! J# a1 X
;;这个过程实际上是给双方作出评价的过程& u" l3 e. y3 }( k6 f! t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: M' X1 S! l& |: Y Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: P6 Z5 K' H/ J7 i- u. ~: _
set trade-record-current lput(timer) trade-record-current7 `% \' I+ {# [0 V3 f# d2 q! |
;;评价时间4 N9 K3 r6 V0 v( @) X% R+ F2 D
ask myself [
2 i+ @0 a: [& Kupdate-local-reputation
# \0 _& A( X% e' lset trade-record-current lput([local-reputation] of myself) trade-record-current0 c- h1 K( C7 g0 {* `3 A
] B9 J/ C$ m4 n! E% T5 @1 ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 O7 Q6 n/ d. W* s1 t
;;将此次交易的记录加入到trade-record-one中5 n5 s( _- o0 ]# I1 ?
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! W# m+ J" r% e% \& C# ]( ?* B
let note (item 2 trade-record-current )/ e- m! J/ `: o U" j) }
set trade-record-current T( R: [. p4 }% b
(replace-item 2 trade-record-current (item 3 trade-record-current))4 `; R, z6 H7 m( o5 V
set trade-record-current
: Y/ Q: u. j% u' Q! R2 l% f& Q9 u( p(replace-item 3 trade-record-current note)% f0 ~$ D) S- m6 L B" z/ s
2 c, R1 E. P; X! @$ A
. z, w+ O" m5 z* |* n% y5 u; Sask customer [* G' p4 r" B% S$ c6 r
update-local-reputation
0 t6 J) r* c+ _. u7 N3 Eset trade-record-current8 l9 H! E* l: r2 |' E/ l& P9 J" c) B2 s
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 {& ~# |3 D. k* ?6 x4 b( m( R]
8 I0 c$ |3 ?2 R9 C7 D
( P7 g& k5 w. J; [
" Y2 l' G! T( W8 i$ n( Jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& l7 y: e. H# M% A
' W; a+ v& h8 @7 g6 T! ?
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 k. D6 f3 |. N+ p( I u;;将此次交易的记录加入到customer的trade-record-all中4 n( Z ~( b% U8 @
end) V: O7 {4 K4 @/ A* c
$ f0 i, B5 V0 s' U2 uto update-local-reputation
7 k, e1 e) `6 M. A2 rset [trade-record-one-len] of myself length [trade-record-one] of myself3 U: i2 Z: O0 p
( w) J5 L& K; l: h" g
# R( v% O0 [ N5 O
;;if [trade-record-one-len] of myself > 3 % W( S. u% V. _) |1 q+ s) U+ Q
update-neighbor-total9 N( u: |, r. _4 e
;;更新邻居节点的数目,在此进行
N$ X2 p' F' {4 c( @let i 3
+ y ]) r# F' C" p: V; G& |" x! l6 zlet sum-time 0
j3 A2 \% P7 v1 g3 W8 Nwhile[i < [trade-record-one-len] of myself]! }; B" P. h, |( B
[0 u+ t4 G& B' B3 F S0 T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 @5 G, r+ K4 x: }
set i* M, K! L2 _( Z# d4 L6 R
( i + 1)
, {7 ~5 c/ i: x! v]
/ r5 d9 h" u% u Plet j 3
. I8 b. {# |) g3 d% j# l% blet sum-money 04 d. L, c Q4 c: B4 l d$ ~
while[j < [trade-record-one-len] of myself]: ?1 F; z" X; a. v5 {; U& H
[) E6 f: e P7 G+ V3 p! d0 b' U
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); s; n. @+ R( s& R, j! w/ g
set j
6 F' V# s7 m( C$ D* A u5 M( m& ]% `( j + 1), J7 J% t8 {) i I$ u
]7 i+ o) z7 E1 ~, i$ d
let k 3
, v1 ]! i* `, C" Y. Jlet power 0
& f+ k/ S- r8 S- r$ elet local 0 B# y1 M F! h6 |. R: n
while [k <[trade-record-one-len] of myself]
5 k7 Q4 w$ ~' k- @& `+ h[
/ g1 @1 \0 }9 G5 c& v' z6 N7 d# Y- nset 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) / M7 { S, D. B: a) j2 i
set k (k + 1)8 u4 Z' H& z u. h
]
6 J/ N* k6 n- v6 O4 Z: k/ Lset [local-reputation] of myself (local)
! e4 i4 e( r) J3 F, {' k; d0 S, _end: |; \2 D$ o6 p2 M3 ^, z# R0 Y
* C! |1 i) h6 D- i
to update-neighbor-total
8 X. ]! j/ ]9 X- b4 m; Z
8 d9 g/ T2 Z6 a+ B6 s% [if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 N9 [+ `+ w a, D; R4 b9 i
2 S* q- v$ h; ?) G8 d8 I% v
' o0 X& `1 z4 r8 l' M, y" iend! G9 X: l$ e9 C5 x' t7 ^
0 n h2 n2 a: _) R9 A; L! H* _
to update-credibility-ijl ( ?& W/ @3 C4 T$ t* [+ h' d
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;;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。8 N5 d% Z) [5 k1 W' L8 V
let l 0/ g1 A; ~4 \! `
while[ l < people ]3 u8 t5 m5 Q* j1 L7 F; f/ w6 H7 o/ {
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) n) w5 [) s/ Y$ Uif (trade-record-one-j-l-len > 3)6 p8 `' `9 J7 L; ^, n
[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
: M# v( q4 u& v( V% ^0 i6 ]. G ]let i 3
9 X8 R" B" W- ?' M& Q, Xlet sum-time 0
6 x; ^! R) X0 A' o" ^! dwhile[i < trade-record-one-len]9 U) m2 {& F4 t6 J) N7 N4 L9 ]
[) C' v/ A9 a4 P+ O, @; L: t
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- r- U0 s: @) I; h: v9 ?
set i
& V& J8 X( n S) d( i + 1)
" c9 [. P" n) w! Y/ ^- z! ]]
( } [' I5 U, N+ _' Ilet credibility-i-j-l 0
. |8 V1 _. q/ z" `;;i评价(j对jl的评价)
# a( \2 ?, e/ P; n. tlet j 39 O0 w0 P4 x/ ] z+ v/ H
let k 4; a" U$ k: Y1 \& g* h) j0 b4 x
while[j < trade-record-one-len]
1 ?2 u2 C' I9 a[
( V' ~1 Y$ R; y4 a* W* G+ mwhile [((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 b/ r4 m: n5 yset 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)
5 q3 L' ]7 Y; x& Z6 ~set j! c# v" ^- ?" @
( j + 1)7 [9 ?/ o! A3 ?" N8 _& y+ M
]1 q, p3 h P5 [5 l" b4 I! ~+ h7 Q
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 ))
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- i! _! }7 U- m3 i& O: F4 j* R } |9 ~, f
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) F9 w) p4 B* I7 d. g;;及时更新i对l的评价质量的评价7 Z8 @& `( |2 `7 W# E' c/ K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 v# g% w9 Q) V1 z1 d) h% ^set l (l + 1); J/ d2 O0 G' R. u" F
], g' T4 B5 t9 l, h# `
end
a6 F' ^* x" U; Z# X
* P' N" M* z8 o3 Hto update-credibility-list
' S9 c) u5 s P. t! c8 v' Mlet i 0( L2 r: h" n3 n
while[i < people]
5 y- P7 c, L, {2 G[
/ @/ G5 t" }6 c) J8 h- Wlet j 0
+ N$ H* ]; `: h V* V! ^let note 0
- ^* [' P0 x! ]7 S6 t! f9 J7 q6 Olet k 0& R7 K- ]8 t! m
;;计作出过评价的邻居节点的数目
8 z, }% j+ U/ w: B0 wwhile[j < people]
. x( g8 H r5 V+ k[
1 p. r, h/ p* \# L$ lif (item j( [credibility] of turtle (i + 1)) != -1)
* l7 H9 R3 F$ ]! V% W: Q$ v;;判断是否给本turtle的评价质量做出过评价的节点
: n7 T5 }% X6 J) S1 P1 r8 R, C1 q[set note (note + item j ([credibility]of turtle (i + 1)))3 s8 ]' O5 M2 n' X% m& a, G
;;*(exp (-(people - 2)))/(people - 2))]2 m0 S$ B9 ~5 L+ q/ J* T
set k (k + 1)
8 _. l3 B7 w- }" B \1 i]
& V. f! x. X. [. y& V( L, Xset j (j + 1)7 K( b+ u- {* G
]0 r. V, i3 ] [* M
set note (note *(exp (- (1 / k)))/ k)
R/ @) K! x( R5 Y Pset credibility-list (replace-item i credibility-list note)
5 c2 Q) L- c/ G1 A( n# \! gset i (i + 1)
! p; }3 a$ w* U' x# {7 V* \]* J4 [8 f, V( O. E, G4 o
end: h2 R$ \/ Y. c% q4 P# q
, O" z- r, a g* \8 K! ito update-global-reputation-list0 y' x( z' I3 t2 @8 j
let j 0
7 V; R2 ]7 Q( W; q1 swhile[j < people]5 F G; ^" `& ^: J$ E
[! Y m; V% F0 {5 x, O9 f8 A: G
let new 0
. l. m$ A+ k- q+ f) @; u/ S;;暂存新的一个全局声誉 M7 Q& b/ `9 Z# [( W/ R* Y
let i 05 m% J0 K! G; E3 l5 s5 S
let sum-money 0
- r7 M0 @: w8 ?/ P& S& ?let credibility-money 0
+ {) d, A9 ~/ L. L3 kwhile [i < people]
$ D. c+ Z7 z5 w! R4 r[
$ T, q2 A+ k# e/ uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% J! }9 n7 P! H! x7 g2 Pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). C( i% K. R/ V! K
set i (i + 1)
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let k 0
- m4 I2 ?' l- K3 Alet new1 0( {: k8 j2 j# W& k# J$ Y
while [k < people]0 r1 Y! A' h c2 f, y" U. e d
[
) W! X; F; W# X" X! Eset 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)1 F" ^/ c( ~+ B- o1 ]% M5 {& r
set k (k + 1)
5 _! `: P* N' u% C5 W. y]
' J- N1 d: u7 d. iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# \9 X S. m4 V7 B' T' {" z' ~* ?0 aset global-reputation-list (replace-item j global-reputation-list new)9 n* n' P. [8 K& k; P
set j (j + 1)- T* \, ]+ ~" ?; G
]
9 D( ~: e' \0 r; ]end
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to get-color; ?1 ^# W5 W. P0 K
# Z( n& ~/ h) R% @: k6 f: f/ zset color blue; p! Y! a: x/ W
end
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* F& S6 s9 L6 _1 sto poll-class
# x, v a1 A, ]% D4 _* _end5 K- f8 }7 }: ~# e* P
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to setup-plot13 D+ e k7 ^$ V5 H8 s# f& ~
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set-current-plot "Trends-of-Local-reputation". x9 `6 r$ A& v1 `- V' Z0 m# o
2 p. A$ m- V6 k( J7 C0 Xset-plot-x-range 0 xmax/ c( Y. Q |% h( p$ @: i) J
1 b, C+ E+ C0 Z5 G
set-plot-y-range 0.0 ymax) U$ G0 q0 F1 \
end
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to setup-plot2
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set-current-plot "Trends-of-global-reputation"
/ ?1 c" p. C! ?6 M; S& Y" p
2 H4 Z* C- X2 _% O$ H- eset-plot-x-range 0 xmax
9 L8 d8 z/ w1 [+ j8 |( Z$ V; N
! f0 u! E& L4 }/ ~% K" xset-plot-y-range 0.0 ymax* f" a$ i5 L% j1 M+ A0 i% j, P
end
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3 p, ]" k* F, Y& m& P; jto setup-plot3+ Y B6 O1 b$ r3 P* v
! v9 V2 c7 O% ?1 M. fset-current-plot "Trends-of-credibility": R6 w0 D: S, ]8 J
i/ f* ^$ R( ]* V+ n5 |. D4 d
set-plot-x-range 0 xmax9 @& i1 C( K) @! c8 ]
/ z. j% l0 K( W- @' Pset-plot-y-range 0.0 ymax# S' V7 P' A: `
end9 z: X5 r) i- c# ^
9 {, ^, ]( m4 c6 a) {3 e
to do-plots
! x9 `" Z) M0 ~ I1 jset-current-plot "Trends-of-Local-reputation"# I+ w' c( N: J; R
set-current-plot-pen "Honest service"
# }$ P; @" @$ N* C+ f7 D# \end
9 v2 M" L& J) F5 D9 ^) |7 d: q! ~9 r* H5 E) z4 Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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