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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
% S' N; N1 F& X; z. v d E% a0 Mglobals[$ |# G1 N2 F3 F+ q6 n/ f
xmax6 ~6 V4 J" u$ D ]$ f
ymax
) a0 r; C# ~7 j5 a5 q0 e. N% nglobal-reputation-list
) c$ `8 x; S, V& U: d. A
- {3 D4 s8 a( v+ j7 O% D;;每一个turtle的全局声誉都存在此LIST中5 W; U4 ~ F; J+ m# }
credibility-list+ }' c4 d9 O' g5 v! {
;;每一个turtle的评价可信度( Q& w. Q/ w2 w+ H7 l
honest-service
$ N1 p% B3 ?: Y4 J4 E1 K, Wunhonest-service) W. G) T) O5 [! r
oscillation9 a+ o/ A4 G5 l& V
rand-dynamic+ y# W& f; r* d- f8 e
]: Z4 Q! x5 u) B
- S( u4 q8 g8 ?! ^0 s5 ]3 B! y: y
turtles-own[
* n C! B1 w# d& otrade-record-all# L& E( E. }' Q3 P! Y
;;a list of lists,由trade-record-one组成
j" f6 r) N$ m- q/ Etrade-record-one
( @7 T) h, G; |" j5 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7 e, E/ c% Q( c2 B9 _: [. W/ z! t1 q
! q. x' [8 f2 y% s& n2 j' `;;[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]]
$ H7 Z* U+ t4 [ D1 btrade-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]7 f- y! U+ V) A2 X5 C3 r. L
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list7 A- T- g4 i- C6 e
neighbor-total
; X* ~, @( O3 f9 [;;记录该turtle的邻居节点的数目0 ]8 o4 i' @* L& R5 w
trade-time+ _3 z! n% | `1 P2 `: B1 A
;;当前发生交易的turtle的交易时间
3 x: x u c- Zappraise-give
2 D- B. X. H! z1 R' v' A;;当前发生交易时给出的评价
# t: U. \% o) ], e7 C+ Rappraise-receive
$ u2 L9 P7 _ k; A4 T3 V;;当前发生交易时收到的评价
; O" S* j4 q) Tappraise-time
5 h$ S' x1 c) E0 {7 k;;当前发生交易时的评价时间
& s `+ f* x) S+ l2 f7 w6 Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; [. J; |2 k$ T+ {' r5 Dtrade-times-total% s$ V+ y) y# {$ E/ _0 O/ z: U
;;与当前turtle的交易总次数( ?# V4 k" o: ?+ n5 X: @
trade-money-total9 y1 @7 n, Y! y& Q
;;与当前turtle的交易总金额* X6 {) |. g6 n- d$ J
local-reputation) O) l( _& ] B" L. z
global-reputation
( ?6 T+ i' _2 F; s" C( F& G* Q# ^credibility5 ^7 Z2 |* X9 A( q+ k0 M8 p
;;评价可信度,每次交易后都需要更新
. w6 b& Q/ N& i7 j+ Scredibility-all
3 N* K9 }5 d0 I" E4 L8 [;;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$ Z8 v0 B0 i5 T3 T- C- r
" R- \& R1 T! S' V ^
;;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0.54 _/ E r/ S$ w+ Z p& R
credibility-one. X9 S7 E9 N. k+ V. U8 T' N
;;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
7 N$ \: V S+ p: oglobal-proportion/ h( `7 O* j% M+ u& @* P+ d" j
customer; p2 L$ A1 }1 s# ~8 z
customer-no
- k* ?; `# N9 V0 L1 O# L; ^1 _trust-ok
; ?9 D2 ]; j/ v5 q V$ btrade-record-one-len;;trade-record-one的长度
, ?( d" T2 Y# R, p( B- p]
$ u+ q" D ^/ e/ S, L$ Y) c
% E( R+ c8 \; n8 P;;setup procedure
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to setup
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ca0 ^" _ Z6 d5 L4 \
- ^7 ?' Q0 w$ I# h( uinitialize-settings
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crt people [setup-turtles]; I' e# {; o$ c* {; i# z0 k
; n7 u9 x$ a- B3 Greset-timer
0 c) F. Q% N" d+ N- A D. G, |6 Z% K* O$ Q V: ]
poll-class
5 |; }" K7 X/ z+ n D& R& s9 L9 r2 E( o6 z
setup-plots
( I# s: F7 G; V) ]
+ m+ q+ w, V) A/ j+ i$ Fdo-plots
' w( f9 ^, D3 B7 K8 Send
# E! U& `) c' L% ]$ v {3 B( I0 k) E1 {# [8 h D& C
to initialize-settings
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set global-reputation-list []
+ J- q+ p! V9 V' |2 I
" X1 F6 ]6 j3 u Z7 r5 Eset credibility-list n-values people [0.5]4 y8 G% M; i- d# `0 k5 d O% e* _! u/ h
: |; D7 i; w# {# C |% }
set honest-service 0
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set unhonest-service 04 q+ D' e- w6 H; Z' r7 q s
/ {) W( N* P8 o6 y( E6 g' \set oscillation 0
$ c9 _! n+ W6 \
! ? |) c) W0 z6 e, q8 k2 d9 N. Eset rand-dynamic 04 h k9 P1 I' [2 g
end
+ ^) r. Z/ V8 A6 D8 V% B% S' y. C0 T6 U
to setup-turtles
2 |0 _$ X% T2 S: r- yset shape "person"
- R9 k( k7 z6 T# X3 Ksetxy random-xcor random-ycor/ p9 A. `5 j$ H" y j; F
set trade-record-one []
5 u( k% S2 k+ U; D- X
2 K5 v6 J, V2 h/ z- v, {% R9 zset trade-record-all n-values people [(list (? + 1) 0 0)]
' n8 l7 s& M) z5 z. [& [
% l+ _3 w2 s+ i, Qset trade-record-current []
9 i: `- d# X% ?5 P6 F8 K \set credibility-receive []
* m$ _- N- B5 y, wset local-reputation 0.5
" Q( a9 Z( O( \8 K0 L1 X, g7 X+ Sset neighbor-total 02 ^. S7 L% j+ @! p
set trade-times-total 0
9 L: g: W$ k9 t6 Dset trade-money-total 0
7 ~; p! _# X4 S, I8 ^( ~7 Nset customer nobody( z2 H1 B/ h: p, X8 k
set credibility-all n-values people [creat-credibility]
) V3 _5 f, R: i3 |set credibility n-values people [-1]
" l5 z- g' x& D" Jget-color
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7 }9 K- O5 N# Y4 u' \end* b: P1 t r: K% p4 S9 g
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to-report creat-credibility" v1 L0 \8 m2 v2 |! v
report n-values people [0.5]0 k+ O. _7 L/ p& S/ A/ p
end
! ` R! {$ F* _1 A" S6 f0 p
4 Z' R% b+ J9 @% p+ u/ @to setup-plots2 D3 q9 W. |; f% }# R( C
, w9 M6 h) j2 k( w7 O! J( Wset xmax 30
6 A2 Q4 ]1 p3 m6 t) n& f* q C' R5 h( @! Y9 h
set ymax 1.0# o( M, [; a b9 d
: z7 b# o7 i5 A" R. e5 jclear-all-plots% ~' h5 {# c1 s3 }; I, N
6 h' [) U# Q' p* F4 f$ k ?, k
setup-plot1
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( S K$ e! u2 P; n: y3 ]9 f* d( y# tsetup-plot2
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setup-plot3$ {0 v% U, s: M& a
end
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;;run time procedures
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to go4 w$ y1 I1 N+ ^: f8 }
1 _ I* {4 B9 [ask turtles [do-business]
/ |3 q$ Q$ V S. l) vend
2 K9 J, r9 T S, H, P& [
/ o% q! M' D" c2 Z4 r9 xto do-business
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S1 O) X2 V) l6 v
2 E0 j4 R; I0 y0 art random 360+ B; F* }& F0 Z: L) U0 A1 k
3 i! e0 j- v& D
fd 13 D% C4 I$ \, B3 D! ~' j7 L4 g& t
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ifelse(other turtles-here != nobody)[) @ b& K0 n$ g0 G7 S {: p
" j- F+ J; O1 G4 W- F3 ]% k! zset customer one-of other turtles-here
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;; set [customer] of customer myself/ z5 i5 W$ D! K e" t9 x( n
# a1 l+ l! e5 I% y& b" G4 Kset [trade-record-one] of self item (([who] of customer) - 1)9 _5 O0 U: O; U" h
[trade-record-all]of self% ^# \$ }3 u' T+ ?9 p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* k/ x* ?8 e5 w3 p6 C
+ M( J2 @" \5 u( {9 Bset [trade-record-one] of customer item (([who] of self) - 1)9 {" r1 |* z3 B m
[trade-record-all]of customer
$ ]# f1 s( t/ X* p
# E; D7 q2 c+ }- A* [' vset [trade-record-one-len] of self length [trade-record-one] of self7 G' c4 \9 @$ d* V, A, U. \) u {2 B
: Y1 X w% \6 ?
set trade-record-current( list (timer) (random money-upper-limit))
# V4 X& |+ j, q0 W% B& n
+ ~+ G7 T) v9 T1 l/ u6 i( eask self [do-trust]1 \1 Z# R# x1 F
;;先求i对j的信任度
$ K$ b# q- L' y& j) W' H, X6 x6 X; c
if ([trust-ok] of self)$ @& P& f3 K3 v. H$ C+ @% d$ }* ?+ H
;;根据i对j的信任度来决定是否与j进行交易[9 r) B p. x. M8 ^+ }
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, I. K- Q9 Z: \/ n5 y3 i+ c
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8 Y$ p2 c0 G6 Wdo-trade
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+ r0 I g1 F5 \8 j0 z" mupdate-credibility-ijl+ D7 H6 ~% f* o( J& ~+ b7 Z
; }& f/ {% j4 H9 o
update-credibility-list
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) t/ v: S h# u) V- h. m& D; Mupdate-global-reputation-list8 x! v" N7 y% r7 u8 o/ J
! `5 b& h5 h' i# [: o; }
poll-class
1 _ z) x p$ I/ H- y+ b9 u2 S& [( F& z
get-color
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& h, j$ q, Q) R$ M6 k" @]]8 p( G6 h, g8 v( V$ c
9 I. i0 Q3 B' E$ w
;;如果所得的信任度满足条件,则进行交易
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) M/ Z) S. E# E0 g3 T- Y[4 I$ ^7 z" b+ q
+ A5 ]/ P0 P! {/ V" Y+ b! l0 k: ?
rt random 360; R. ] w; j) O( {, M
/ C$ @* z8 F' a& E
fd 1
& M9 j$ a r: O& D" B# {; |* p3 D# k8 O8 y) u# P/ _- h1 F& A; c
]
8 h W% {" ]+ p6 v3 J3 v6 S+ K6 P$ A5 V2 o8 ^. Q* v& Q) o
end1 o1 a+ ~5 ?$ u" K2 R; I# J5 q8 |
7 C3 Z, n% d7 mto do-trust 0 d7 A+ x/ M/ X- [" x! k6 ^8 V& d' s
set trust-ok False
6 y$ }2 K* z) D O+ k% P2 o9 ?
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. W; l) \ W/ R \9 ^4 c, e! R- m T* Mlet max-trade-times 0
# z0 {3 [# D( ?2 p0 I0 r/ a% sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
, G, ^4 I( b |/ @2 J7 {5 q. ? x5 clet max-trade-money 01 t1 o! M0 N- ]7 j/ @( k& k! p. B: b0 @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ Y U* s4 t* E9 n1 ?: E! t0 rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! z3 |+ T. V& b% b; X5 ~9 {5 W% l- o, O6 Z" c: m8 a
# q# Y5 M' M9 `9 ?; R
get-global-proportion
- ^% m( q* [$ W: P0 V7 q: [let trust-value: n6 V( r( `6 n' P3 G, X) R
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)
0 s! |8 f- E+ ^$ Rif(trust-value > trade-trust-value)
+ p, l, {" O7 ^6 [6 e Y( Z) b% n[set trust-ok true]- E, H, ~ U# y: @) l- b
end, I4 g& v6 C/ r0 {6 o, `
+ D6 P# A; _; e* f1 S* hto get-global-proportion4 y, v7 D2 m3 M, q9 n" Z0 H
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 [6 R$ k8 U* }9 @* r
[set global-proportion 0]
7 o# L% c. [+ y* G[let i 03 i0 g. }) F% C6 j( z9 z. N
let sum-money 06 k0 G/ S+ `. R- m* L
while[ i < people]& k/ H9 b& a' Q! ~$ x% \
[
1 O9 {' {* Z8 T3 V' D+ ?if( length (item i
8 M: t+ F9 b- T9 ~+ R+ M. |4 V[trade-record-all] of customer) > 3 )% y. s/ U2 e3 H
[
0 p4 U, f* C0 r! i! r+ \1 z5 Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 a v8 s1 Q( k' U, v. D4 ^' h
]8 U3 r4 l4 g! }& i1 _# X$ I+ J
]
$ K+ O1 A3 d( {2 F& S2 k1 y: g# ~let j 00 n4 H6 l8 g& b8 a) e3 y
let note 0
+ E/ {3 S; E5 v; b- f4 \' w5 w" ewhile[ j < people]' Z/ e! o, ^( k
[
6 Y( X) Y8 r3 q' a4 S2 hif( length (item i1 ^* e/ I5 b& {) y7 @( i( j
[trade-record-all] of customer) > 3 )
M @8 Z1 m; Z* m. ?[/ K- Y. ]7 A8 r9 K
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ W1 H. A' V- N6 y2 `
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 O( q$ ^8 _6 W& [
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! w) Q$ @1 c* n- h* }$ w
]* z6 l( n/ F; x2 c3 s% P
]
' O$ S0 `; U' U0 f& \- rset global-proportion note
5 S h: A* \. [: p]
8 m2 K& ^% J3 J/ J. i0 l* Vend
% ^. P, b2 u3 I% i% t8 e3 L3 C y( `3 V
to do-trade" p9 L% t: t& M: B& L
;;这个过程实际上是给双方作出评价的过程
0 a$ [7 d$ h. ?3 F t- {9 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 p6 s" k* C% u* Y, f6 F2 N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 m9 U* b; p) d& A! U0 S$ Cset trade-record-current lput(timer) trade-record-current
/ O, ]6 ~) F$ o! F8 a6 r" t/ R;;评价时间9 E3 V' A6 d* D+ v5 f* \; D0 n8 O
ask myself [
% [! w9 }$ f/ Q7 p4 e) x- hupdate-local-reputation
* @/ Q6 F4 ]1 D4 a# @4 F1 ?6 nset trade-record-current lput([local-reputation] of myself) trade-record-current
0 d/ G f x) V; X]$ h, C/ z: t7 m: v4 f
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' R! d" {; H8 W, p/ Y
;;将此次交易的记录加入到trade-record-one中& S5 Y9 s/ S3 f7 d, z4 @9 m! y2 Z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 h( y, x+ p! d9 Q% D3 Elet note (item 2 trade-record-current )
: o$ s9 n X! e# Kset trade-record-current1 K( G# s5 ?$ T5 o$ x
(replace-item 2 trade-record-current (item 3 trade-record-current))) r+ R( Z" j$ i3 k3 K
set trade-record-current
8 D4 I0 [/ B* o" J/ G5 C- N(replace-item 3 trade-record-current note)8 ?2 s5 P/ f* L. g
/ n( L) |% L# \& C1 q8 S2 r
% a% I0 U/ K. |; t6 ]
ask customer [
5 ?. b: J t, Y9 h1 iupdate-local-reputation% P. r; h9 g+ T' w5 h1 J& ~
set trade-record-current6 r5 h& t$ G/ P$ f6 O% S/ ]0 P3 U/ a
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " x) a+ u( v! ~
]6 \ Z- w* _8 k) h/ i" F0 E
) R7 R; v' u5 Z4 W6 g
; _" C, t4 f- d2 ]$ a4 Mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- [/ @" M+ ~- z* J
: Y! Y- }7 q; a2 o; p* z" dset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 q% H) o7 M0 I* n/ d;;将此次交易的记录加入到customer的trade-record-all中
' w, M" d' S7 ~# k- [8 oend
3 a1 r( T% R# v
" c' d4 l. h0 o7 ~; j2 hto update-local-reputation, _+ P; G; V4 w- U) G1 |
set [trade-record-one-len] of myself length [trade-record-one] of myself( ~( O$ D# ]% e3 k3 |
3 R. J* { a0 r5 P
~5 B" ]" `$ K$ h# i
;;if [trade-record-one-len] of myself > 3 : o* c" P" M4 e5 b- o2 N
update-neighbor-total
8 r& W8 r( i/ s7 ]) T1 x- \1 R# G;;更新邻居节点的数目,在此进行
3 B# Y" C# r; ~) j7 olet i 30 \, }; |; {4 u s
let sum-time 0! i9 n# a- O4 F& M
while[i < [trade-record-one-len] of myself]' ]' N# v+ V- k: L5 A# K
[, j# y5 x% K$ R _8 k6 M- ?0 d1 f2 s
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 o2 Y9 M9 ]& v
set i! |! u6 T/ s& r
( i + 1)% q7 f( s$ d: A' s2 T; Y; ^8 V
]
2 u7 I% w( T* N2 G1 Qlet j 3; {+ M, P$ g3 s+ v J& W' [# z0 A
let sum-money 0
/ w2 X/ b9 V9 L1 Vwhile[j < [trade-record-one-len] of myself]0 f% a- I9 A* L
[
/ a K+ D8 d4 H: r3 Zset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 ?- f* C! h9 L
set j6 D- ]5 ], \0 f2 s/ ?+ h; m( T
( j + 1)! v7 q C* g7 K# ~* J. m
]1 u' j* m; P7 H9 R/ w- b9 d
let k 3
. W% p6 _, o6 v* j" x' Olet power 0
, o6 j B% |5 d$ x, E. x Nlet local 0
# d1 P5 I2 A) Gwhile [k <[trade-record-one-len] of myself]' u0 K! U4 ]: ~1 m
[
7 p! n, t! p7 m# @( m( gset 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)
8 X: O( R$ l: cset k (k + 1)
% O$ p2 _% T1 V7 M! |$ d]
( s8 j) t2 M) ?set [local-reputation] of myself (local)
, U v5 _( N8 xend
5 R4 s6 U. Z$ b1 L/ G# h% {. p: K/ h6 `/ ^5 V
to update-neighbor-total' B* \' A: s; A2 w' I
% O+ f1 S+ S7 Q1 n( y! }* O, Y% N
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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7 [: q3 a, E/ {; ^( v2 v! Lend4 D+ q# ]: ]+ n) C. z
( m6 G' [) ~% L7 } `/ fto update-credibility-ijl # l+ e" |' C1 t9 F' P" v( Y
& g/ u7 R. Q+ u
;;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。# |. \9 D+ H; }* F6 g7 i9 V
let l 0
0 u( _+ ^+ {3 [9 K# Z1 u5 H% }while[ l < people ]6 M' S V% a$ F. Q3 F. _- \: E
;;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6 ?0 [7 Y! l, f5 @
[" _$ p1 g, b# ?
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 r* F3 ?. `, Kif (trade-record-one-j-l-len > 3)+ }* S, S8 p. P0 q% b
[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
4 q, `0 J7 d. ]) o7 Klet i 3% D4 i2 m W5 T' n5 v4 w
let sum-time 0
, N' G+ B \0 d5 R3 Pwhile[i < trade-record-one-len]7 I9 R! A# X+ [' s7 c; Y. x8 ^
[
8 v2 D, J. s( T1 g; f+ V9 Vset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 B' q% z' B: v# F B7 Cset i
, `& b/ p# |9 [% a+ y( i + 1)
_1 l/ d2 m8 s]. ~7 ~7 h0 Q! k! J
let credibility-i-j-l 0 } f2 ~; F. m1 h
;;i评价(j对jl的评价)/ T( {" r9 u3 r) C+ X' ?5 U
let j 3/ w1 I* L0 ?* s' d6 S
let k 41 G0 h( w- C3 t7 k9 s* C
while[j < trade-record-one-len]
% g; ~$ n. O G" q[, |9 O* O& u# O2 M* T
while [((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3 v" F3 a! b4 S4 Q7 \- f
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)
* ~' c' K4 ^* T |: N/ G% [set j' ~" o# {, q+ @
( j + 1)
7 P/ y# k# P- C8 r) p: |+ b. C" z]) K8 X+ H/ h' O& w3 y
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 ))/ y/ X- c5 Q& W0 r
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 T4 X' v0 ?3 w1 t
;;及时更新i对l的评价质量的评价" J8 B' P V* C0 {. e" I% i/ U Z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 x: y; Q4 Y+ I- [/ o. l* M7 u
set l (l + 1)$ E0 \0 e. p( O$ j' h' U/ }
]+ E+ H9 R$ H( b
end" ^/ ]) c5 z3 L z. N! ?
( }: t8 K" T p) Kto update-credibility-list7 X) M: ~2 x8 w2 ^6 G
let i 0- L, g& |6 O6 T/ |) k) T
while[i < people]
1 x! E! m5 N- @7 f: q3 q8 [4 o[
7 q3 e* B" R- f. h; Wlet j 0
' `; x, e2 d4 b; blet note 0/ `- ~+ @; J* \3 w/ @. U5 b8 Z# N
let k 0' }( u& B3 Y- h# S6 y4 \
;;计作出过评价的邻居节点的数目9 p. y) Q; k# n; o( j' g: u; f
while[j < people]1 u5 W6 A8 v5 M/ ]7 t4 ?- z
[
+ u6 u. r5 L/ N$ Bif (item j( [credibility] of turtle (i + 1)) != -1)$ _8 O: X& l( F( f( V
;;判断是否给本turtle的评价质量做出过评价的节点
9 T0 Z5 q4 F2 }[set note (note + item j ([credibility]of turtle (i + 1)))* r0 a* r2 l# B
;;*(exp (-(people - 2)))/(people - 2))]
; G& s% l* E9 I* }$ fset k (k + 1)
8 H0 A( G, Q. ~+ u' Y* O( u' j]& I5 u' i; E7 P. Q# u1 v7 e) u
set j (j + 1)/ g. ~1 k% Q0 w, \8 J
]0 z+ ^$ s& m* A% q
set note (note *(exp (- (1 / k)))/ k)- N% S) j9 |/ z" c s. K1 l
set credibility-list (replace-item i credibility-list note), a9 ?) e$ C; ^/ C- l# s
set i (i + 1), V Z5 e* C8 v t- I$ H6 ?
] n8 v: T4 M; R1 [; u
end
, Y0 j( T/ F7 r! X/ `7 @, [" g# b" f- a
to update-global-reputation-list
) W1 ~$ m. E9 N. V- g0 ~let j 07 t) u1 d! c6 E
while[j < people]
. V3 y( h) Q" M' _7 m6 z' {' ~ R[/ G2 q' S# ?5 d; U/ A- }; x
let new 0
# Z" f0 d3 R1 q;;暂存新的一个全局声誉
, H: O; l+ ]5 e% G ~0 Hlet i 01 g1 }8 H! e6 F6 ~3 s# _7 x; _
let sum-money 07 C$ h+ W- [. H4 y( p8 B
let credibility-money 0' P' |/ m. @# B: X) v# q& g
while [i < people]# b0 Y- H; t* d" s/ d, O5 [
[6 d& l0 [* m/ V. S. R
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& V: n$ h: Q3 k! ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 _. `3 z# b8 Q7 A$ R" Qset i (i + 1)
7 i4 I/ c7 Z4 l( @3 Q% M. I) z]' P$ r* W5 U4 i) F
let k 0
( e, b5 M+ Q) X$ Ylet new1 0
" s; V1 Z7 Q1 ~4 F9 \ nwhile [k < people]
9 M; q$ H5 E# z* r! a' S[4 Q+ s: D: j# o: T# {# a
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)9 t4 M# c4 j6 t5 s( d4 R) a% } K6 L
set k (k + 1)
( j. q" |# i% n" x7 C) w, ^ S) R]; S6 g1 Q6 I. O4 E) f- ]" E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, ~' t+ z5 s- A9 p+ m& hset global-reputation-list (replace-item j global-reputation-list new)' z5 ^5 I3 c4 O! q5 Y
set j (j + 1)+ T/ r% Q/ ?2 o+ t. ]+ x
]
: D% a' B4 A. g: `end0 r- a( X5 a8 E; b" P
# Z% y1 M, A3 Y8 b: r ?$ i8 u8 ]4 W+ c8 `' K% `& L
6 r- c, Z& Q9 g( E
to get-color4 J1 T! }4 w/ U; l" f) f, I0 i: d
% H _- S( H0 m
set color blue
' L V" g- S ^) M# Lend
2 w7 b4 G) B4 _
# P" w4 J( h4 M! e0 p! v# l; eto poll-class: T; ?* _" S1 M* Z& |6 {/ `; G* U
end' b7 \7 x: N, A+ j {" ~# B
" j1 i) @) K$ mto setup-plot1. ~) G0 W( R8 w3 a$ W# \' ~( w1 {
$ g) e& w3 w C8 e; Zset-current-plot "Trends-of-Local-reputation"
' l/ n6 b- {& Z
* F; L# R2 p9 B+ X- cset-plot-x-range 0 xmax
1 ~, u; R$ B* R3 u) a, G$ T# V B
set-plot-y-range 0.0 ymax( \( w- j5 n! o) Y9 ?$ X0 j" g6 D
end
* a `6 Z: {5 f# G% Y6 d H/ d# k1 n; E7 l( b( D: U& p5 H
to setup-plot25 c9 F/ }# e1 t7 o0 Z" ?
: X' e' }) k, E# I2 zset-current-plot "Trends-of-global-reputation"
1 Q3 H3 a3 O0 T5 _& j8 J1 X5 r6 l- k- b) u0 n. t3 g" d& P
set-plot-x-range 0 xmax& c Q/ ^! `1 v7 f
" c: o. G# G' |+ [5 h, g: i6 U l9 I
set-plot-y-range 0.0 ymax
- X+ K2 Q" |9 a# Q: Z% y x8 b& t1 c2 ^end
% `% T, v& `- z4 H
7 g% Y; k. c7 `; X) U: x! _to setup-plot3
& U) k+ l- ?: c& \. J, n# }
/ g9 |* I& z( O+ W( J( Z* P' u; h( eset-current-plot "Trends-of-credibility"/ w G! M4 J! D: r6 r5 P
. @: C" q1 g/ O/ ^set-plot-x-range 0 xmax
6 E4 j5 v8 b9 k. g ~( [' `& e* w% U( j8 U
set-plot-y-range 0.0 ymax9 F. }+ L N% D2 n0 O2 w
end
; P5 O# t0 D5 s0 A$ U0 q8 u, x) D8 u8 B( b: {
to do-plots# @! A; K9 M& ~* z: M; r! c% u- u- O8 [
set-current-plot "Trends-of-Local-reputation"
Q. R! w& ~% ]$ p6 L) X o0 Kset-current-plot-pen "Honest service"
% R& j8 A) Y1 b" E4 Eend
+ C3 ?1 D' G$ K0 W( r- {: V: A
( b5 L8 p% R q$ y# K5 R; P, A[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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