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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
& v% `2 a; T! f3 e7 qglobals[. a1 Y1 d. Z# l. M* L" v1 A
xmax: P8 b" @- O* r+ M" A3 X
ymax
8 T. X3 {% l$ n( yglobal-reputation-list( e! R0 r* V# h/ E* R2 z
R/ Z0 g5 l. ~;;每一个turtle的全局声誉都存在此LIST中
" o1 M3 Y( y% l/ i8 o2 I, vcredibility-list, [ L: l. c7 l% n9 Z; o: [; f
;;每一个turtle的评价可信度
/ x A3 z1 w8 A9 G1 V: s U6 shonest-service
- U# G. e$ E2 v) `! eunhonest-service6 B0 n* G' K& l+ }/ ]) W
oscillation+ x$ }2 `- y7 q" C8 u# k1 j
rand-dynamic
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1 A5 y" Z# k% n4 z) D/ V% H
5 E: |5 f$ N- `; e4 tturtles-own[- r g( A- n8 V
trade-record-all
4 F, x {: r! Z K' ~;;a list of lists,由trade-record-one组成
$ i7 Q1 D8 A9 z; k- c3 d! ^trade-record-one
R7 I% h4 K5 t' j3 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# i8 `. z3 @' ^
6 F) |! X; X/ G5 U" O 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]]
$ N2 O; R" D8 n, ]4 V+ j) _$ B( Vtrade-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]* C8 B5 e- C% Z7 S! r: b
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list5 y( |7 i# C, [, n3 K% G
neighbor-total
( L! P( Z2 w, n0 o" `# j+ `& ?;;记录该turtle的邻居节点的数目
; l& B+ B4 D2 X8 O5 G$ R( ftrade-time, s% n8 o' D+ H0 j
;;当前发生交易的turtle的交易时间
1 Y$ s7 `# }1 n" Oappraise-give. E: D2 y, d* v3 S& g% _0 K
;;当前发生交易时给出的评价+ U J! n$ U4 ~4 F; J
appraise-receive
; k s, q( E& C0 z;;当前发生交易时收到的评价) a) M( W4 f/ C9 q6 Z
appraise-time: F, {7 G7 H' v, r; _+ D
;;当前发生交易时的评价时间
, C: p% p2 ]& B; C2 Nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉. ?' y7 F9 t$ t7 d( M6 v6 [
trade-times-total
5 y/ O8 ?0 `( J, X;;与当前turtle的交易总次数
* e& B- ?& J& d, vtrade-money-total
& F: P- H) i# A* i;;与当前turtle的交易总金额; G' g5 u$ Z9 b( w- b
local-reputation. N9 T: k# q- _5 i5 P- i# P
global-reputation
: ^( ]0 R5 G: F. pcredibility
; \4 q/ u, d7 }2 \ e6 r;;评价可信度,每次交易后都需要更新' P) K+ n( W8 K1 }! b* x* H
credibility-all! r& x% U1 E, {7 L5 Y& P% w
;;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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1 r! C0 w) p5 O4 ~;;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
, Y9 P1 F& U3 x+ W1 P; P5 ~credibility-one
0 I; N1 B1 W% @: B6 j;;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/ Y; [) E4 d: \% z/ D
global-proportion0 @1 p5 o- H6 K- Q3 J4 ?6 j% `) U6 m0 b
customer6 P; c; R! y' R R
customer-no% f b4 T4 r+ K2 V/ o! _3 V
trust-ok3 G: W( g. H* J4 S2 V" v n0 N
trade-record-one-len;;trade-record-one的长度7 K; H* l4 O6 x. k9 m( w1 r# m
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5 Y# P+ [+ L4 k;;setup procedure8 |+ o& j3 |% N
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to setup
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4 h! x/ G) p8 A r V1 n( Cca
w, {9 l# _; T4 P% [: l# D! L9 l1 Y; f, J( g m4 |1 u3 o
initialize-settings' }5 H* l+ e F" R4 V: |
! K x* f: L8 p9 Q ^6 H6 Ccrt people [setup-turtles]
0 \) E) V7 \6 w2 Z* z% [" w2 H: K& X( ]4 _- d
reset-timer5 C1 i4 U1 v' Z
% p/ e5 m; [/ A
poll-class
7 r+ V( ? ^' X0 X L# m' I2 O! c5 u
setup-plots
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8 N3 M5 R: V/ J7 `( e L9 Z0 Sdo-plots
' n5 y1 y9 H# U3 k& J6 Jend
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to initialize-settings. ]& @* J# U9 |( P1 P. V u% D
4 ]+ ?: R1 Q+ C/ P8 a+ {0 ^set global-reputation-list [] S) C# x: V1 F3 K
! ^0 {3 ]/ v1 J/ Y! T8 W$ R
set credibility-list n-values people [0.5]$ X7 ~2 K& s$ a4 D7 f# b3 Y
# G' S/ e% E' v
set honest-service 02 H. O8 F% O) g# {/ g2 i
7 L4 y8 [3 Q! Sset unhonest-service 0
3 Q* X" d1 D1 Z, B1 A8 q) c' ^
7 ^0 Y# |" n, Gset oscillation 0
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set rand-dynamic 0
5 k7 ~4 j- L" W. E6 z+ M, ]+ E( Nend
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k% ~! T% D$ B1 a7 u3 A5 [to setup-turtles
% L! f( g: Z: c) hset shape "person". E! X1 Q3 Z4 \* J
setxy random-xcor random-ycor! i* t; E0 b+ b" }3 v/ I$ s
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
! l0 o& W% {: l( V0 ?5 Z* Z! X" E2 A1 [+ V0 v0 k
set trade-record-current []
4 @8 I* y. g; ~" u. Jset credibility-receive []3 R; C! }+ d( ?# b
set local-reputation 0.5 l2 R0 V( q- O% ~/ b, @& d8 B: o
set neighbor-total 0
- o. w5 J0 }3 J2 Sset trade-times-total 0, _! K" P; h {9 l/ d0 Z3 @. L
set trade-money-total 0
0 f! V, L' g. \0 N4 |' ^set customer nobody0 N* K1 y' ?! B( k4 j/ T" k
set credibility-all n-values people [creat-credibility]
1 S: y" S( g' f; ^set credibility n-values people [-1]
8 }" d' Y6 Q F+ p4 sget-color5 `) O8 u: U$ d- F5 L
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end1 v$ H$ G1 k4 J$ a- p
! T5 q$ H% s! _ s6 [" C r0 S3 H3 }
to-report creat-credibility
5 k2 F: s6 J4 R6 J% c4 ?% yreport n-values people [0.5]
& v3 O+ |1 }* m( G% }% Vend
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& J1 M7 N! y' S) v, C# Wto setup-plots$ ]' X* w3 b4 m% \: t. ?
! V: I" h" o$ ~ E" Y7 w' ?set xmax 30$ |2 ~+ ]* y i2 h/ j
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set ymax 1.0
, O5 _& ^! a" m A$ i* \3 a' g
4 y3 H: M. d* @5 e. yclear-all-plots
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setup-plot1
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setup-plot2
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$ W' B5 C& J9 z; r( d4 Nsetup-plot3
( |( s! Z9 q3 e1 y& Hend
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6 D/ p+ P7 X8 p' x$ o- J* K;;run time procedures% b* h! Y6 J- `' B. Y1 i
# H2 ^* R% f, g( vto go
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9 |5 c# m4 m; K Z) Rask turtles [do-business]
( B. \/ B+ X: {end
# H$ M c! V( G1 E6 }
9 C3 w0 z7 m! b* L! u( O+ [$ Vto do-business
0 w, c, `, k; t7 k, G) E# s' D
8 h' r, C' i; J: k& a7 \$ O
( \6 {! @' W9 w8 |3 h6 y; Ort random 360, K$ h2 N" J- e$ x" q/ Y
0 _5 R' L. k, ~9 E+ _2 \ ?
fd 1# `9 R6 q9 u8 v8 `
& }, b: P" U! E- i8 z
ifelse(other turtles-here != nobody)[. I5 y/ p% w' d% C' K$ q
0 P8 e3 D2 J; G$ e Tset customer one-of other turtles-here
! _4 ~: G' \ }* \
& Z6 o9 c9 ^$ Y4 N5 w;; set [customer] of customer myself
$ _8 x" ^: h7 i2 {, y
+ a. ]8 @$ ], U6 _& g3 l& I* b6 Zset [trade-record-one] of self item (([who] of customer) - 1). K5 b# ~1 [1 I) n! n, l B. \/ q
[trade-record-all]of self- c0 V0 l, G& c: _. V* W% h3 p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 \! B6 C* O8 G( h( y6 A
6 S( J3 I0 s M8 h, L) A2 ?set [trade-record-one] of customer item (([who] of self) - 1)
% J8 X0 l7 @+ `: @8 T v[trade-record-all]of customer
, @. w$ S& {( R% u3 O! ?9 T. s
1 u9 m( P# H/ n0 |set [trade-record-one-len] of self length [trade-record-one] of self. p' w: q2 p' J4 F& k/ g
! Y2 G& [8 ]0 r* f( v; }set trade-record-current( list (timer) (random money-upper-limit)). U) l$ E4 q! D/ j* g
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ask self [do-trust]
" I$ s' G; q5 E;;先求i对j的信任度' T% F8 ]. I8 T5 Z9 w" G
/ X# s. o' h2 Q. [ {if ([trust-ok] of self)8 E: g' h2 Q5 f; I; S7 O
;;根据i对j的信任度来决定是否与j进行交易[
" w2 u( ]* j: Q: t2 Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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% [3 | }' [3 f+ D- [$ S6 r3 A[
/ S3 ^5 _/ f$ A2 @. W+ D! o2 H/ U& I h, R7 w8 F2 a6 w8 f
do-trade
% }& r7 L7 {; p5 C5 d
8 ^5 W* [$ P+ Supdate-credibility-ijl& @ i1 ~. Y7 Y" x7 [7 v% M
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update-credibility-list5 h# y3 M. T$ M5 h
1 @$ p: X f1 u3 t$ X1 ?: _- j
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update-global-reputation-list1 N% o0 s/ b; g8 G5 y4 C
. \- j; o2 X8 e7 S$ B) w
poll-class) L B* \3 q t1 {/ L
$ v: h( |% J" D; Hget-color
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]]
. O/ m* d' i2 ?0 j T5 M. `
}2 B6 b! B8 j) f& y;;如果所得的信任度满足条件,则进行交易* I* H( T- [1 l6 L
6 D8 c5 L) M4 U* _4 T[# f# M5 a! f; {( A `7 D( U0 i7 ]
% R& D: {" o1 K7 E: ert random 360) C" u: f7 [& v; F/ P* z: S- g& H
4 @) P7 P7 c: X ?' f$ t3 T3 [fd 1
b9 s2 }# D( ^$ H+ W; }& y
: N4 Y$ y# h, b]
9 q" B. T' |1 }* { {+ ^
' X0 U7 a2 q) z4 kend
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1 `) v- X4 d; D2 I- J- ]- D& F2 F* Mto do-trust ' A6 z- k# B) }
set trust-ok False! f% [9 A+ x0 k6 T, a
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! I8 x/ t7 G7 r3 @! \let max-trade-times 0
& {& t% l2 W! M. D. u" m, Mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 j- P% W& R- k/ _: hlet max-trade-money 06 ? T) \. w8 v& w9 [/ g1 u
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ K) E) x n" G0 p% W$ plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ a8 v# u e- t) Y; s# T6 L
8 J6 T# }0 E. S/ u' W) j- x5 |/ Y5 D, x2 c9 P( m/ a5 @
get-global-proportion& v, r" o' x6 [) j( a( r% S3 a/ @* |
let trust-value
t& w5 R! b5 f, u3 A6 f! n1 _4 wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
i% V& {" t( R6 `1 Wif(trust-value > trade-trust-value)& W1 r% A; |* i3 t
[set trust-ok true]& g4 o5 R; n; W+ ]2 ]* _" t* W; o
end
7 l( l' h7 R! a6 t {0 `- Q, f6 b! W* S5 L) y$ `8 C
to get-global-proportion
( d8 A. ?" s; V8 k9 ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 a+ A8 ~" k: o6 C# r* T
[set global-proportion 0]
0 C/ u; z: E0 @[let i 0
/ M. P/ {) L9 @: L# Slet sum-money 06 s2 `4 O% [% [
while[ i < people]" F. `# V+ k6 `6 p! C
[* G3 c. V1 Y. n5 E" u2 v7 q
if( length (item i6 n8 i' o) J( p: y5 }+ K' ~+ G1 U
[trade-record-all] of customer) > 3 )
- |; f0 f3 S, _) i: G7 E[
: ?3 m! y$ X+ L* j* d" uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
E0 e. x! Q/ x]# }8 C0 Z2 `. x* v! H: L6 p+ F9 t
]; H7 q% ?+ R: }6 }
let j 0
4 S6 S% V. c6 blet note 0
. F& G# |2 E! a0 Wwhile[ j < people]1 T( r$ I% Z( {( x7 Y0 _
[
7 O- H* S; M1 g7 w! X$ Qif( length (item i6 n: f' C9 L4 Q$ K& g. \% L ^) ]9 M
[trade-record-all] of customer) > 3 )# t) Y: i2 h) ~! p. P/ }7 y% b
[. [) `2 {! [4 I# E4 `: i+ z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 S. |& @" g/ d3 Q[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( `6 [) T* q) z! E" g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 k4 r& A. }( [/ e! F* |) A
]
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set global-proportion note0 _3 B# w: g y+ F* g& A: I
]
# a6 R/ c; n6 n ], xend4 N1 C% e1 t6 Z, A4 d
2 q9 z- o" P. ]2 m$ m2 Xto do-trade% x/ Q+ j( A4 K! `' i5 l w$ c% q$ N
;;这个过程实际上是给双方作出评价的过程
- Y# a6 U1 X$ O$ C+ _; R9 P4 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 ]" }1 m- t( ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ h/ m; ^* M4 a9 p! Fset trade-record-current lput(timer) trade-record-current6 M5 E9 A2 i" C: S9 J" Y2 d
;;评价时间
0 T% ]7 Q( p) K) ~' E3 vask myself [
4 a3 m7 X$ @! p* x; }" T. jupdate-local-reputation" b- I T* [) _+ G3 ^5 s/ f
set trade-record-current lput([local-reputation] of myself) trade-record-current
! s: q' a* h2 }! [! {]
' Z A; S! F o2 y, fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 q+ V0 h4 r8 S {8 L' l;;将此次交易的记录加入到trade-record-one中
& p' \/ p3 ?4 X( e, Y. Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" [$ ]7 ?0 G6 |+ R2 H6 D
let note (item 2 trade-record-current )
6 ^' q8 P# w5 y' cset trade-record-current* Z( Q2 c, g! `; K0 {4 {$ I
(replace-item 2 trade-record-current (item 3 trade-record-current))
E; ^# @% u6 ]+ Qset trade-record-current
7 J$ F% }* q& t7 M' Y* ](replace-item 3 trade-record-current note)
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6 i$ z, {: |4 {/ y" h1 r. t4 @, p6 S, d6 Y. r0 G
ask customer [) L; t+ B- Q- X" T6 } g* a9 H; i
update-local-reputation0 F3 B. ?1 l+ S7 b }3 m
set trade-record-current
) y$ G* h' o `, R# z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# [* }! J- O/ _" u7 |]+ w5 h. y! s6 ?
0 Y7 s, _/ z" @; J6 N
4 h( ~" Q& U" [$ k! u" _set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 H7 p; U5 K) q6 @& d- Q2 n5 g
) ?9 i$ q" h" U$ O9 K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& B& \6 ]/ x, f
;;将此次交易的记录加入到customer的trade-record-all中0 l# |/ r s" q$ a8 [# `& P, D
end3 w1 D4 c, v3 ~* W1 C2 U B
1 Z8 t; [ z# Q& }: b
to update-local-reputation
, Q9 h. b$ V% i H: A3 D/ }, Nset [trade-record-one-len] of myself length [trade-record-one] of myself8 n; n: @6 c9 r0 |
/ n6 w: q8 u" g& _+ ?/ \
7 J0 C5 ?4 j/ i5 F& z) Q8 k
;;if [trade-record-one-len] of myself > 3 2 I P+ M2 M) f* u- w
update-neighbor-total- _' Q& o8 I' c+ a: \$ N
;;更新邻居节点的数目,在此进行
& W/ z4 B, o7 A0 O, R# [let i 3
6 ?3 y; [) A0 j% U! plet sum-time 0
. e% Z/ S, e! Zwhile[i < [trade-record-one-len] of myself]" C. ?/ [% _% \# w% t
[1 Z7 ^4 o# z( E) j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; D% E0 y3 b/ [8 G. f, g1 C, M% c8 Tset i
; S+ g% ~. B* v$ J5 P! {+ L/ c4 I$ l( i + 1)7 M/ e- e' v( o4 ]$ O
]/ {& B* n: Y# x# H
let j 3+ O9 r2 _1 L+ p; _
let sum-money 0
; E( r ?+ P5 s: I! o4 Uwhile[j < [trade-record-one-len] of myself]
1 h/ U. i3 ? W- m. g8 c7 W[
+ E1 m+ h4 a& f; |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)
/ h) T& G, u% c! fset j
9 y2 H, D5 x) T, s2 k0 o( j + 1)1 Y5 ^) M9 M; k
]
. _( D+ S' ]8 h% V6 Tlet k 3
, ~! z4 R$ t7 u3 w& H/ rlet power 0
% S/ f8 J6 Y; ~ \4 d: j/ L2 |let local 0
( R3 d) n4 e* o2 `5 Mwhile [k <[trade-record-one-len] of myself]
- g/ W8 f- M+ P6 D' n[
8 `8 |7 i% I- s) U yset 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)
: e8 f% f! a7 Hset k (k + 1)
/ h3 f9 N" b1 K5 q: m' B" t6 j( C]) m; p, n; x8 a3 h* j0 t# a
set [local-reputation] of myself (local)
' i9 z/ [! T! p0 d0 ~; J* Dend
$ X' p2 X1 [% W6 K0 `
8 w) \3 @7 ?; y0 Gto update-neighbor-total4 s9 s- N8 U3 I6 d
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) B$ x4 F# z1 y6 }
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3 `: }* s) k+ O! F: ?( p7 {0 @end/ k- K9 t6 t. b; G6 N
/ v5 O$ Z/ o/ F$ d2 ?+ z9 ~9 |0 k% ]to update-credibility-ijl
& O- {, x7 h8 F* d$ Y1 a# T3 v/ H1 ?
;;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。5 N- a3 e1 R E, b* S
let l 0
% ^7 O# b _/ s' J, W$ z/ `while[ l < people ], ^) M a4 H! h) x
;;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
1 D+ o( |: P/ e' f3 _[; g' _- A3 c- s! m& r* O* F
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& V& N1 }) l D, @9 f: I
if (trade-record-one-j-l-len > 3). u: ^5 N9 \- ?8 L1 g" f) I
[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& H7 c( h- D2 f# }& N' U4 d4 \) u
let i 3
6 W4 s% H0 m& {! {$ e* Z$ rlet sum-time 0
" Q. R4 Y' Z, }5 p8 y8 kwhile[i < trade-record-one-len]
. I6 S+ R6 |: O7 @" ?/ M[
. q8 D* }3 X5 u& i& }, u# Hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 H4 i% l8 _3 c/ x Hset i! j. O( h; B" ~4 x4 N f- {' E
( i + 1)# C- L- z- Z U( y
]) y b) M1 v7 ]6 [* Q$ I
let credibility-i-j-l 0% V7 ]$ m1 ?- k% y
;;i评价(j对jl的评价)6 {8 E; k* w2 n; H2 Q
let j 3. @6 ^, \3 ~8 k
let k 4- Q1 j7 u1 C8 e% o. R/ H
while[j < trade-record-one-len]' \9 ~- d' V/ Y5 r, i- P
[
6 |( i& I2 W+ Swhile [((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8 z& s* h6 H" Q4 i, O: W% |, M8 @
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 w+ L2 ^* Y5 Q0 [
set j( x2 h7 V. k/ g* t* w
( j + 1)& _+ n6 U1 [4 f1 R6 i* O/ }
]+ O5 O5 d. ^2 N" {
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 ))
9 a1 T: f$ s! B
+ k. x, b8 l9 O* O
3 R2 E: r7 B- v$ Q8 @% N8 H6 alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 E/ w! d$ P6 ~( X+ T
;;及时更新i对l的评价质量的评价$ u F, g2 u$ c' T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 y# M: |9 t- E. v2 X" I9 ~set l (l + 1)( d$ q3 E W( ^6 D
]* w3 J. g" A0 U
end: o) x: C$ f+ Y% H# I
! h' _5 V. p b9 G
to update-credibility-list0 |2 O* w2 w& N7 w
let i 00 t) e% e) k' A# ~) {
while[i < people]
; `+ G9 N: g5 E[/ n5 ~4 \: H( \* o6 G/ R" r
let j 0' ?2 |6 R7 o( s8 U
let note 0
1 {+ ?; Y6 ] flet k 0
9 v. \* i' k2 R( N# ~2 r! J;;计作出过评价的邻居节点的数目
' `/ q7 v" Q/ J9 Q4 a! V0 u( pwhile[j < people]# a( |8 p) v9 a
[( i( d# F1 a+ f1 W
if (item j( [credibility] of turtle (i + 1)) != -1)
' v- N) ^, I) M3 q) };;判断是否给本turtle的评价质量做出过评价的节点
% Z; D7 k9 Y# [[set note (note + item j ([credibility]of turtle (i + 1))): K" u* e. N0 q6 m3 g3 {- @
;;*(exp (-(people - 2)))/(people - 2))]% D9 n* X( q7 t1 J B$ N
set k (k + 1)5 R/ ]. c6 ]. @0 Q$ a
]
3 ?3 `& P$ F9 I4 [2 B6 {set j (j + 1)& e: t) R" i2 _
]% V& ~/ H( z# O1 u1 ~) P% O! w# x
set note (note *(exp (- (1 / k)))/ k)
7 j( b4 K% Q9 O, Sset credibility-list (replace-item i credibility-list note)
: U8 G5 y. i1 X( }set i (i + 1)
% I! T2 N7 F0 |- m]
1 W( `8 }9 K% m+ D3 p& Jend
# G5 v5 W* \0 U K# x
( C+ R5 J0 e) F- X; wto update-global-reputation-list3 v" |% M/ B9 d+ _/ p5 w# Y; s
let j 0
& w( @4 j% s3 _, }- V( Uwhile[j < people]8 O4 W, e/ |7 s. {2 B
[
. ?+ O; @2 ~5 X3 P: P X) C3 jlet new 0
& Y- Y" `- A) Y# q; B;;暂存新的一个全局声誉/ `6 Y4 |; f ~2 k7 v& H) {1 a7 a! N
let i 0
: {% W j+ R mlet sum-money 0
4 [$ [- i3 x5 w. b' F/ clet credibility-money 0- E5 k, _- H3 K' R& G- U
while [i < people]
4 F9 q3 i h1 O: D' |" } p& [8 x( M[" [/ n* A4 n D' u
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& s5 g8 [, @( {. B( l5 v3 Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ a- o! \! ]* U( ]
set i (i + 1)
. G! m% [" `; _ M]
1 ?2 f( F$ ^ |let k 02 b: a2 ^* c+ x
let new1 0. t2 j; f" U1 h: X" {/ |* f$ c8 E
while [k < people]8 ~" Q: b& @) d( q
[ y$ ]1 B0 N8 ~
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)5 v+ x3 L; b7 u j% o+ X& F
set k (k + 1): e5 C+ k4 y3 u6 l4 l7 g! T: @
]* X, o( {: _" v% r
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 L9 V4 Z3 I) m+ `set global-reputation-list (replace-item j global-reputation-list new)1 o+ v- D- q4 p( u- R
set j (j + 1)3 U" f/ A% D( A. l
]. J* Y; }% t" X. Y
end9 ]0 \' {# t0 e& g
0 | h6 z) b8 e( l' i6 q* \9 a
4 \2 ]* z# d- \
, Q* g0 G+ G: j' W9 l" y( K" [to get-color7 S j* y# X. n7 O$ O7 |
% N5 Z8 L/ v8 r: h1 d- M+ cset color blue; r- F) \4 Q7 `9 ^5 L
end' P& F, |# i3 H# i0 q, J! ?$ x" J% r
; ?3 a% c% } j6 L# U- B
to poll-class
1 j2 b0 k9 d! D# m( n) T) G5 Rend' x* u4 `9 j& a/ _/ a: @3 e; R5 k
L8 G" l: n8 O. |8 R# B
to setup-plot1' V9 D; E4 z! N0 a' g9 p9 J, d
. } C; r. P4 T9 d) Jset-current-plot "Trends-of-Local-reputation"- Y9 s7 T" H$ z. {! s' X7 |
* ?+ J: B+ Z2 G/ o# r; J8 o1 Z% e6 Kset-plot-x-range 0 xmax
$ A/ }9 Q; P$ W Q8 g% z3 A0 K! s- |% A9 `4 O( _4 y
set-plot-y-range 0.0 ymax
' t1 `$ \" p- y, H$ t4 r# K* Wend+ V7 Z. v0 f/ | x9 ~9 I
( }7 T# j# t: L0 [/ z) J% E
to setup-plot2* n; a, A& X" c0 I! H: Y& r
4 }( K; ` A$ ]
set-current-plot "Trends-of-global-reputation"7 `! d2 {6 f/ J' C5 K
% b/ q! p7 @; e, B1 y: o& E! s; Aset-plot-x-range 0 xmax
! z% q; F7 @: ^5 i( `, o' s. y% G9 n1 t+ F! D" N( D
set-plot-y-range 0.0 ymax
8 [) ]0 ]! f: y1 a' ~" Dend: E# K1 l' K- `
2 ^. B C9 Y1 o/ U2 H% S4 q+ tto setup-plot3* A. B: i; j. M1 ?* c$ ]
1 w ^9 I( U3 x# x) Rset-current-plot "Trends-of-credibility"
* i9 C( F* b6 n N$ Q: D3 \! e: b$ Y
set-plot-x-range 0 xmax
9 c& ~3 A* S4 A! I
) ?1 j1 P7 `! G& kset-plot-y-range 0.0 ymax/ `7 l' y" v' w" U. o# g; Z
end
. b6 a- U" }) g; C7 k& F& V6 c, |* u0 Z3 `2 h$ Y
to do-plots
! r4 F* m2 C# N. A9 `+ d. i1 X6 D2 xset-current-plot "Trends-of-Local-reputation"
% y' x6 R( h% M* `set-current-plot-pen "Honest service"6 R G& h1 F% }! H; }& u. T6 k2 T
end
4 q+ ?! L+ m; h( N2 e. k" Y- P& d" z& H* N: c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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