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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" U3 w% x( C( }0 N wglobals[
7 n) ?* [3 @; w. O8 Vxmax; p) k+ h- h; e6 ?) }
ymax
& @% z; y* i1 b2 A% p# {, f% L5 Rglobal-reputation-list0 z' [ Z5 ]& f. K$ E
0 W3 f. d9 \ d- [6 i;;每一个turtle的全局声誉都存在此LIST中1 |1 p$ @) F4 {' @1 z& g; M& H
credibility-list
2 t. S: u2 A o r2 | v6 ?;;每一个turtle的评价可信度
4 C5 P [, W9 y7 X `# g( Ihonest-service
3 q3 M& g2 ^' R6 w; `3 nunhonest-service
2 @6 C7 Y; r- r% v- W) X+ toscillation3 r* L9 g: a+ A" ^/ N$ k
rand-dynamic
3 D" d+ r5 \9 I4 v8 N7 _]+ D4 J, q2 M" q9 M
7 y4 U/ `' b/ ~* tturtles-own[
h; n) P( t, X! Q# R6 Vtrade-record-all! ~8 \) M; d4 x
;;a list of lists,由trade-record-one组成
# K; r& f2 y0 ]3 Dtrade-record-one
# r: M7 Q5 F/ {: i;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! k! t$ ^( E3 S& V( j
# X# C" `0 H; D0 A/ M) x% k" F# k;;[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]]
+ z2 w% a. t$ ttrade-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 |3 Y! a( t' e C, V: Q/ M3 x
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list6 R- _8 Y" o) D. j
neighbor-total
, U$ O/ v: q' f3 x/ _;;记录该turtle的邻居节点的数目! o3 J3 {1 I1 J B4 V* Q6 L
trade-time Q4 X& p A0 i+ B
;;当前发生交易的turtle的交易时间/ u, B; b; |5 K
appraise-give4 Y0 N' V: M6 |
;;当前发生交易时给出的评价
F5 s9 k9 C, G0 `) ?8 Fappraise-receive4 s- B; e7 j/ |0 z
;;当前发生交易时收到的评价6 a& n j. v5 }% h% _
appraise-time7 B u* S! P5 |6 t' X
;;当前发生交易时的评价时间; W/ F. c6 K k. M3 z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( R: V' r8 `( B# V% `# U% Strade-times-total
% b# E0 Q6 ~6 q5 c& r7 ~- e;;与当前turtle的交易总次数
( n/ @' e2 H! ttrade-money-total2 Q( e; ]0 |. G" s
;;与当前turtle的交易总金额
: g. J7 Y7 h' v( m& a W J! N7 alocal-reputation5 l. A" M* [8 z/ N) k
global-reputation
1 z- y$ O$ p, Z) E1 w# ~6 p ^) _credibility( ?0 D8 Q. K4 D# n
;;评价可信度,每次交易后都需要更新
0 ]6 d; m" g5 D- z9 E# ?credibility-all
2 [- J* W9 {, G) P: i: g8 B;;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% q7 E! u) h1 W
) v* h1 k; H" {4 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
* y. |. j' s- e7 ~. w, v8 p5 Acredibility-one
3 R! ~6 i& A! J' u! m;;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" H- v- U( O3 Q% [ O. ~, X
global-proportion- x0 ? T! j. S& W* s: T1 k
customer
/ k' b8 I; k5 E' ?4 F" Icustomer-no
# A$ r- b. M5 H' o; r. ?+ utrust-ok
; w. n! k+ c {0 H$ b+ F4 Q! rtrade-record-one-len;;trade-record-one的长度
7 |! D: V7 L i4 ?- _]
7 w& r% H5 F N% j6 n V$ V$ A) z( o7 q
;;setup procedure3 T: |- i" R$ ?, e5 G( _
5 v1 F$ o: [" T1 a- [
to setup
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$ P6 B; o2 A& Cca
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initialize-settings/ w' I6 {5 U# c& y+ b4 ^
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crt people [setup-turtles]
7 Z! S R, w7 G: b" W _2 i
' ?2 B# X- K0 D7 e% z, preset-timer
4 E! E7 W6 E. A# q% O& b2 A
3 Y# ^( V M1 rpoll-class$ u Z) ^% ~3 j: a& |; L* j
! ]! ` y; |1 l: E7 V& U" [: vsetup-plots
8 q. W9 D+ C Z$ Y4 U% c/ n
2 Z" b/ W6 L Q$ s& M4 Pdo-plots
; L# q, y* W/ S" ^end# a& g, {- Y$ e+ ~7 G' H o% K
" x8 ?% P! E" L: Jto initialize-settings
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7 f6 `4 }! Z% }% n# g& d' d% wset global-reputation-list []
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set credibility-list n-values people [0.5]
1 q2 M7 m5 s* s7 y8 z S3 P% y0 O$ m% o* Z: W
set honest-service 0) _% k, M: z: B4 u/ k$ |
7 W% q( y, d9 t
set unhonest-service 0 c; `9 Z c( y2 b; m& R: j
2 _: x2 V; p' w% i
set oscillation 0& |5 t0 _- {1 D/ y* V9 B
. \; Q3 Q; W9 {7 l+ _& a, oset rand-dynamic 0
& E7 T; }$ n s2 Y9 _end m+ o7 J( R4 }4 i9 n7 L
1 h1 d% d8 \5 z# d8 tto setup-turtles 3 L" {4 y# H, ?2 m/ G# D
set shape "person"7 Q% w5 R- u5 I7 s$ e7 P
setxy random-xcor random-ycor# T) H; Q. P+ G$ q( t; g
set trade-record-one []
O3 B$ r3 b+ y6 L9 D4 O( c
: G* e8 [, y9 S7 g% yset trade-record-all n-values people [(list (? + 1) 0 0)]
) [4 W: v3 v _" C# R. w
4 b: F$ O! K- i9 {" H& Cset trade-record-current [], r% X! |* ]% L# {1 c$ |
set credibility-receive []
% ^3 [: y$ c+ Y6 M5 O# Q; s% _set local-reputation 0.5
3 K) b0 z8 r( Oset neighbor-total 09 r! T2 V/ e" H
set trade-times-total 0; w( C: O V9 v( D8 J' K
set trade-money-total 02 w& Z, q% V( X' p4 R, |' J
set customer nobody! R; G" U) |9 q9 ~/ U
set credibility-all n-values people [creat-credibility]
" Y3 }' w% ~# o- ?set credibility n-values people [-1]! I1 I* | p( l/ i
get-color
: L, }8 M) Z, M) {4 }) J
& B* [: |3 k; K. `end
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to-report creat-credibility
% |% u. J2 F1 S* ]( k3 d" greport n-values people [0.5]5 Z& [8 @. k! |1 Y4 U
end
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to setup-plots& Q; ~1 p4 O: k; T/ p
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set xmax 309 E, p$ s' a. y! D8 T7 r
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set ymax 1.0
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& O6 ?5 j$ g5 T$ q* ~. Dclear-all-plots6 m1 s, c7 @4 O* G, W0 y
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setup-plot1* L: F, s% h4 L3 A1 ~! Z6 ?, B
2 ] i1 F0 K1 q/ vsetup-plot2
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setup-plot3
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1 ]: y$ m4 K8 {;;run time procedures
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* m+ x* b# p# h; I$ Jto go$ f4 M- z7 ?, f' E- N
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ask turtles [do-business]
* X5 ?5 B& X2 E1 w iend) D# v+ S( `' N9 s9 t: u; b
4 K2 a) d4 o' j; V, Q! m) Yto do-business
1 }7 T$ T* \0 B
! h! c b4 L: r* j) d( R' g0 n2 l; Z2 Y6 C+ g, k
rt random 360
4 M3 K9 Q) F- ?5 v' \9 z# {, G! j0 Q( H) K7 f
fd 1
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ifelse(other turtles-here != nobody)[ ?2 W4 j$ o/ n& c
G9 I' G2 X& e2 G
set customer one-of other turtles-here( q3 U0 e0 X3 Q! @. K- w
* W) s ^0 S9 R0 ];; set [customer] of customer myself
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( r& e! V- o7 pset [trade-record-one] of self item (([who] of customer) - 1)
; c8 F; Q) z. C6 ~[trade-record-all]of self& _3 L& k9 K" B0 M) b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 [; Z6 X/ V: V! ]1 M. y1 _+ r
' O2 n% o0 j8 e9 p0 A; Eset [trade-record-one] of customer item (([who] of self) - 1)
) o- t7 V& c) g( w2 ~; D8 b' F[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self) A6 c. p9 m9 Q! m; V0 \
8 Y5 N; ]6 s4 w4 L3 A G' m. kset trade-record-current( list (timer) (random money-upper-limit)). V% N7 Y6 ?% x" o
) J& V c% |* u) v# T7 G/ H& Sask self [do-trust]
, Y0 P* S/ ?! ?. e;;先求i对j的信任度
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if ([trust-ok] of self)
, G3 w/ E. f+ T. v;;根据i对j的信任度来决定是否与j进行交易[! _ a0 Y2 v: T0 R7 {( B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* [; l( ~8 {( H& v( F
T" g5 e* m3 u* t, r[! b+ }5 S& I1 ^$ G) Q( e; q
5 r1 \+ H4 T4 Gdo-trade: S5 _, E" I2 y' Q7 a+ J' Y
+ u% h- D3 m* `8 v* _: ]' s/ m
update-credibility-ijl6 u6 Y$ E) U" }/ R
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update-credibility-list
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. k. w+ p& G' _* u/ h; S
}5 {! W* B8 {update-global-reputation-list+ B3 ]: F. x/ I: u
7 j" s' E. d* N' Z& G+ m# b3 s. F- ]* npoll-class
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get-color
h+ }' v; o! \, ?8 m. h. b7 J: K# G* S) b* ~
]]
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# `; X/ A* q2 w# K8 I: i( U- r;;如果所得的信任度满足条件,则进行交易
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[$ f& A% ?- c1 K# a( a6 w+ X" f
5 D! ?( C8 ]& m$ W, C* H/ Urt random 360! t: V& g: c% \6 j5 Z/ K8 ?" ^/ P
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fd 1
7 }; c* E5 j: s
( f1 Z3 P. a) V]
# H. {; t6 X; `2 _$ H/ }, v% r- P2 Y2 I) ]# |" ?7 a" |
end A4 y* Y" n6 E4 V! ^, v8 F& I
% x. N5 z( } |7 U* o# b. {to do-trust
5 P8 {( Z1 a' Q D7 f1 \set trust-ok False& P1 p! c" C% u$ T, R# e
* K% c3 Z5 s6 v4 O7 s
# A4 f8 T9 h: Q: }0 f5 {let max-trade-times 07 P' G# V8 {" a) l- b0 `
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' t: O+ t" \9 g3 Blet max-trade-money 07 f# Y9 t7 {0 _9 |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 u/ Y/ v; n/ @" @/ a6 qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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) q4 n6 ~5 B( h7 {2 ?
get-global-proportion" a3 I% L4 ^# _6 c ]/ k" B
let trust-value
3 E' v# j" f: S' y6 olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
0 C* U7 Z. s) ]; b7 k; Y# q. Aif(trust-value > trade-trust-value)
Q9 E5 z' y% _; I9 J! |[set trust-ok true]7 X" Z: ^& R$ _1 f8 k# m" d# k' Q
end
2 o& n* l# P( S2 x+ X$ I( H8 X) W! d* b0 B" }" o1 m7 k* F
to get-global-proportion
- d! p2 N& B# i- d* \ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! Q2 x. J' U s
[set global-proportion 0]
; e# z" H5 U2 U, L% }4 e[let i 0- b" o- V1 G! n2 @ |
let sum-money 0" w/ |% {. t, D
while[ i < people]- N" j, d4 `8 a& d" ]/ V m
[6 V' x4 m# P9 k f
if( length (item i
+ j5 x7 S9 `% M+ P ][trade-record-all] of customer) > 3 )% }! m. ]% J, Z+ H6 `6 p! y
[; m1 i8 U! b0 A$ b; {+ _
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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, g0 J( Y0 Z$ E+ j, o- ^0 qlet j 0
) F5 E& p6 l. n: L- Tlet note 0% m: J7 O( X9 ?4 K
while[ j < people]. C9 H. C. \$ G2 M+ i
[- X' i! e/ a2 E8 d# i- K
if( length (item i
9 O( p5 x1 b% f. r[trade-record-all] of customer) > 3 )
. j5 w5 w" q4 [8 P[4 P9 D/ O$ A5 X9 \* u0 A C2 A$ ~5 R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 G$ z# r6 }. l) b2 q- Y% L[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( R0 o( i- S9 D& L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# u; [( M) F. v]1 z- S" B- ~ |: ], A& P4 n5 l
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set global-proportion note
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end* L! n9 z( K/ `; s5 ]1 z$ J( G: N
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to do-trade
6 ?1 W9 P7 G; [8 H; D3 ~;;这个过程实际上是给双方作出评价的过程
9 s- w$ K+ ^6 R( H3 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 ~( e( z5 ]: @& t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% c, p8 y; s! ]. bset trade-record-current lput(timer) trade-record-current4 b7 b0 A3 h& ?. k( t Z V- U
;;评价时间: [5 V E# h1 q; p
ask myself [
! [' K2 v( m; jupdate-local-reputation
+ ]5 ~+ E8 \/ J# K, Jset trade-record-current lput([local-reputation] of myself) trade-record-current1 o* u/ H# G) w
]! f9 z2 _* ?) j1 r7 c" ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# I$ ~: I! {3 P0 ^# C: C R
;;将此次交易的记录加入到trade-record-one中
/ `7 ]0 S+ T# ~/ H$ R* P5 t4 Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- G& W3 g% ?* O0 O
let note (item 2 trade-record-current )7 r) |7 _$ [/ I' t# c
set trade-record-current
; q& k2 k0 Q' \/ U* D( C(replace-item 2 trade-record-current (item 3 trade-record-current))
) Q R( z) F0 T* y5 z% n! iset trade-record-current
# u- {. }+ x6 F% O2 u; y(replace-item 3 trade-record-current note)3 D9 l1 S5 E/ A5 q+ {
% @& N3 R6 @0 Y* ]5 U# O
* t8 H5 u5 W; ]5 d0 }
ask customer [* D1 q) o1 N. Y3 o3 b- d) z
update-local-reputation V- m& E1 Q7 V7 e, U
set trade-record-current
/ C* ~& e8 |# V& x- r, m+ h6 I(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 a5 ^3 S9 T, T; U/ X( J$ a/ Y
]/ C- u; q2 p0 J* R/ w1 x4 T7 m
/ ]: p; f5 M* ?
0 {" l: A& z5 ^! pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
l4 u& k! ]+ Y
7 k* W1 z0 r; p& B% w$ rset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, s, a m3 @2 L- b;;将此次交易的记录加入到customer的trade-record-all中9 n* ^7 y# u. |- w: X& d
end9 x( Y& L3 i# `" I. s" z- ^
2 J( c7 u, D& `/ k. h8 s
to update-local-reputation. W# S7 ?8 L& Y
set [trade-record-one-len] of myself length [trade-record-one] of myself
( U+ @6 T8 ]1 }& k& l# P- H! u
! }; x6 b1 X/ Q& V9 ^& s( `; N( x3 m9 i1 }% g; d7 N3 t% u
;;if [trade-record-one-len] of myself > 3
3 E/ D) e( _' E8 D9 p6 F) N% }* Tupdate-neighbor-total4 ?9 u) c& V, [; I! W
;;更新邻居节点的数目,在此进行
2 B) X# E% h" _/ {; v& Hlet i 3
1 }& l, K' S; I% @0 { plet sum-time 0( z! w; x: Y$ B
while[i < [trade-record-one-len] of myself]7 m. z* S7 T7 c1 b% y& a R/ k
[
, I6 N4 e+ @$ z: b# h' V! T! yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 U, K# \! N" v, m( \/ G( S; F1 ~+ W
set i8 k2 C+ f7 o( w0 z- l* g
( i + 1)
6 k% V% M+ s! `3 F# C; w]& b8 |/ E& m$ M' Z/ S1 ^0 A
let j 3( p: [; B6 P- g1 U, b9 A; c
let sum-money 0% F3 c: @1 L4 ^! p: p( \
while[j < [trade-record-one-len] of myself]. |$ i% z) F; b" L9 V3 N6 s T
[
, c7 _' l% d( u! d. x6 b+ A5 pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
: j( [$ S: h" iset j- Q2 }3 H& @& X% H% n' K/ ?/ b/ L. O
( j + 1)
f8 W2 h P. d9 S D]2 A" o* ?4 j3 Z$ j# a2 n& \
let k 3
9 P/ d g* _. h" \, b( qlet power 0
6 B9 [# l& X3 ]- V' f; ^let local 0* b1 `) m4 m/ v
while [k <[trade-record-one-len] of myself]7 I4 \% u; A* T% t1 o: m
[
( e; L) e: x' O2 C& Mset 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)
+ G( b/ ]+ y6 C, l) {4 {set k (k + 1)
" I. P( {" J7 m! D]; W# N: q# C/ X2 K
set [local-reputation] of myself (local)! U6 L$ q- J) ^" I" C' C
end
& c9 K. I8 g' T- v9 X
$ `! I. P& ^' x: [to update-neighbor-total
# _ m! U, r: ~6 m5 ~+ a8 z8 o7 I, c6 [) q/ |$ @1 z& w# D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
: [6 J/ a6 A3 G. d7 q$ m& n/ O* G. I) E8 `
to update-credibility-ijl 9 [# d& U1 Q1 _ F
; x5 D. F ?- a, y2 F;;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。, g* Y; W1 m" ~ U
let l 0
( u( C+ p2 s2 \" ?7 u, j5 u0 A) ~+ }while[ l < people ]7 }0 A) E! z/ S
;;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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" ?( ^- I/ V K/ x# L: ~$ zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
T3 v- J8 g4 C% g; c9 `if (trade-record-one-j-l-len > 3)
; d+ M% M H2 t0 @1 {$ T[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
* N8 Q q) k" t) i/ ^let i 3& k+ K0 `/ J; U9 M* i: N
let sum-time 07 ^1 d- R4 z8 f. o
while[i < trade-record-one-len]
; ~, @" U, L) X5 E[6 a/ ]# z- a$ d# U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. P3 X) z2 n( J5 j" M7 @& Eset i
2 h. ?9 E X, I* a, w5 I1 G( g1 h9 `/ z( i + 1)' X! ^3 Q' o9 F- ?# N. \4 N
]
! I& m9 {, x* q# [ v ulet credibility-i-j-l 0
8 p ]+ k/ p7 b N" x/ X# C3 ~) u;;i评价(j对jl的评价)
; |/ E7 k6 C; t, x# E' Rlet j 33 M. |- Z4 M( a8 S5 m
let k 47 g+ o7 e4 _+ s% \
while[j < trade-record-one-len]4 |- ?- y: j4 H8 w8 l; |2 B4 Q5 t1 u' z
[
& ~' G" ^5 R, B8 J) x0 ^0 lwhile [((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7 x& k+ d7 x& O& w9 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)
, m7 J! N% g3 G7 Tset j/ i& W- R6 i8 ^) N( w2 K. [7 R
( j + 1)
% p1 @2 u3 T! i6 T* a9 x]+ i/ A3 j2 U: g! u& k
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 )): P* h' |% w$ w
- Z5 a- m" A0 U) n
1 {- s6 Z! w) D7 T& L1 tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" Y* [0 Y; f b9 o$ @, I;;及时更新i对l的评价质量的评价
. U @: }1 }/ O# [# W* p+ R3 \set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 R" _4 K; J7 |% o3 X7 x
set l (l + 1)
& ~8 N, a0 x, g4 w8 d- g, Z]
/ |* R K E' J2 iend
5 a2 k# T5 f1 M# o( }
2 M( w0 G4 d5 n7 g$ {$ W# ^" Lto update-credibility-list4 j, H' Z1 A3 h3 n+ b
let i 00 u) d3 r5 K( T3 ?
while[i < people]
% r Y# R+ g) p3 A& |% V" a) L& k[0 N, M9 n3 O9 M9 M
let j 0( ^4 d: U/ A2 k# W c0 |
let note 0
3 h: m7 c0 T! V) d% \6 dlet k 0
' L" q5 y" Q- L( t: z$ y) c;;计作出过评价的邻居节点的数目
9 Z4 ?3 v; M, L" D, D5 M$ ^/ ^while[j < people]
% D; X: y/ U* P5 z" [[3 T. v* M+ w) K' T& }1 [
if (item j( [credibility] of turtle (i + 1)) != -1)
- H2 m1 P) J. B6 e( f;;判断是否给本turtle的评价质量做出过评价的节点2 v9 X9 g+ o5 j
[set note (note + item j ([credibility]of turtle (i + 1)))5 V5 C6 v2 I, J5 i2 Q& |3 \* Z
;;*(exp (-(people - 2)))/(people - 2))]
# N' J2 Q$ J' y. E1 d( Uset k (k + 1)- b' E6 l, ?) o+ c3 o- e( b3 v
]
9 V: ~* Z) u4 F4 pset j (j + 1)
1 l9 f8 f* Z$ h" j4 z7 Y]
- w Q* p- |$ H! n; ~set note (note *(exp (- (1 / k)))/ k)) u6 a( L& l, M o
set credibility-list (replace-item i credibility-list note). h* K4 L9 k4 ?* K
set i (i + 1)
9 S, {! Y1 ^6 U D! _) ?]
0 Q# Y2 D; _3 V D" Hend6 v* |' f" c+ h/ O% ~. Q
# z2 P( t/ d1 o! ?% G# uto update-global-reputation-list
/ E% L+ V$ Y! flet j 0
6 \, [9 |- i5 y# Bwhile[j < people]
4 j+ a* f/ D2 c$ Z! P; r[' A4 G# O1 @5 C ~* U2 l1 T* Q
let new 0- V3 M+ O& P& a5 V. `
;;暂存新的一个全局声誉
; v4 u, u- |- o6 D2 Flet i 0
4 H& O' h9 o+ Y/ Z& rlet sum-money 09 b% [6 m$ m6 ~$ T7 m9 A( T' q* _
let credibility-money 0
" ~" P! ~4 o9 o+ X8 Q. P3 k# gwhile [i < people]
; L# L! I7 P0 M3 K: [) d[
0 D; [. J2 q% L- z: P0 Qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 s( O1 a! I* t+ l; w7 n; _
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' U' A6 v" E1 d- r b6 H5 ~0 Hset i (i + 1)4 M a" H% }+ R9 [
]
5 n; {2 O7 Y6 D7 n! D: y( k, p3 Rlet k 04 V2 I, ~* q: H% r1 f) n. Q
let new1 0% |: t M2 z) p9 y- z
while [k < people]
5 \/ I* Z$ B' x" d& D9 X[
7 {" Q) h3 m+ \' ^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)+ k& _9 N% I o1 ^' W% ~
set k (k + 1), u3 ~2 D1 ?; ^# h5 t# h
]# Y4 A/ D% ~0 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. S3 P$ g5 J3 A+ S$ {' M- T* Yset global-reputation-list (replace-item j global-reputation-list new)
0 Y* `5 e" k. ^set j (j + 1)% p ]) I, R4 F* T' r3 \
]
8 N5 Z8 M% N8 U, C @" Bend; L2 d% z. c+ T& J ^' `
4 V4 g6 D$ }! w" v6 y& O" [
' ?# _/ \" I; G* Q E, W0 F& G
. _& P3 Z' ?$ R& C0 l& ito get-color4 i* `/ ]' S+ s. V
' i/ T/ H/ C2 m8 m# e9 x: |
set color blue
$ f" ]) b* T3 _# Tend' t" {& K" H# v6 Q+ [3 B# s1 @* v
. v3 P( @+ E+ k5 C0 O" K/ S
to poll-class+ n9 U4 ?; r# z4 n2 t9 q# P
end5 x( m# i: ^# J& C% F
* K4 v9 B1 Y! E& f, |0 O# r
to setup-plot1
6 c7 E H' n6 r
9 k$ o+ B! c+ z: Sset-current-plot "Trends-of-Local-reputation"* N6 s% u# f% V
& r9 q7 U& Y$ R( h9 zset-plot-x-range 0 xmax {4 E1 l% ~# A- s
6 H6 ^) ^. u: ]
set-plot-y-range 0.0 ymax: [6 G$ I& s0 E! k
end
, N3 S( L' y# G9 J s4 k. h
* C, _* `+ ^1 r6 F+ Tto setup-plot2
* w% }4 Z2 A& b# W' K4 H. G2 e! [, J2 _$ ?
set-current-plot "Trends-of-global-reputation"/ @$ G+ n6 d* I; [# u
i. l$ X( H) j5 U! x
set-plot-x-range 0 xmax1 h/ ?2 L1 \( W ^1 s9 E
9 P' Z( ^- ^' ^0 ` K' |" b9 }set-plot-y-range 0.0 ymax. [2 @6 R. J2 m6 f% R, J1 T- l" F
end- Q1 M6 g6 S) X. d
1 C e! H R; F8 [5 A( B# O
to setup-plot3" O) S- A$ P/ N* a
7 `- G* ]: z- w- m5 ~5 y) C. tset-current-plot "Trends-of-credibility"6 N2 j: e, w$ f0 C A2 r
4 F% k. ]: Q" x; W$ T& o% j) V0 @
set-plot-x-range 0 xmax
& |. v( a# E5 S5 ~) V; r9 u/ @/ A v& Z! H; l1 s
set-plot-y-range 0.0 ymax# _# N$ ?* H/ D( n
end9 J F: A: f$ L6 G
! |" R7 V9 h9 F- {" Kto do-plots9 A, Z! r: W& U" P% Y! y k
set-current-plot "Trends-of-Local-reputation"
" A# Z. a/ n1 a$ i, Sset-current-plot-pen "Honest service"% r7 J( R8 p! i: S7 P) L) ]+ u6 M+ ?; j
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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