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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 I3 F6 A7 W; \- @8 w1 o
globals[
& t# v9 a, X3 J7 ^1 B+ @$ j2 sxmax- p5 ^ z) o; l4 w
ymax! E0 u6 N6 C. F+ S1 y! P
global-reputation-list
% K+ K' e D7 T w; W" Q, N' o6 D7 Z: W7 C; \7 C0 ^
;;每一个turtle的全局声誉都存在此LIST中
0 J% E9 o9 y. k- acredibility-list
0 B. `2 |# ?1 s0 M* t6 j& T;;每一个turtle的评价可信度
5 g, |* ^$ f! S8 ]3 l. ahonest-service. A, x' w2 P! _" y4 ], C4 ^
unhonest-service
' M8 g# }- P9 X$ W- Voscillation
, F( @$ `# ^" [rand-dynamic
- |( n4 [( o8 _1 O7 m, g) T2 E# _]' ^2 C1 i9 r- t- O$ \# T' P
2 l/ M. J6 J6 ?, {8 c: P/ Oturtles-own[2 |$ l V B) p3 D( l
trade-record-all& S6 |5 w7 ]% V9 P6 u
;;a list of lists,由trade-record-one组成$ F9 c- I3 Q7 d: c( g! ?
trade-record-one
* i9 l( f/ E. n5 t: F) X;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ l- o6 j6 x+ o9 ^4 T5 x+ v% K5 S
" @8 X8 v' Q1 O$ P7 G* m% v;;[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]]
8 l9 W, ~) c- |# T' strade-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]
I% m2 p# n5 L$ s; Y2 Lcredibility-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" T: Q! W- p# D
neighbor-total! b, I# O# U! b5 C& ^8 |* ]
;;记录该turtle的邻居节点的数目* q7 A! g7 L. ~3 C+ I* B2 e" ~& u1 ?
trade-time
% _8 `/ {5 M2 m/ a! {; L" ?) c& o;;当前发生交易的turtle的交易时间$ x' ]) @, ^; e# [: M; p
appraise-give
; \, c$ S2 m9 Q. e6 Q4 H% [, H;;当前发生交易时给出的评价( [! u; ?5 k% E; `* l9 c/ X
appraise-receive
9 k- @, O& u9 {5 q' X7 b;;当前发生交易时收到的评价
2 q/ h, ~8 x. k5 [7 V+ dappraise-time
1 i0 U% o" \! v& V4 y; E;;当前发生交易时的评价时间
6 b# j/ j) [2 N9 t- flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 R b1 Y# n i/ D( x
trade-times-total
; q* s; R& P1 A7 t% ?$ g0 v;;与当前turtle的交易总次数8 n5 ^7 L4 w3 l$ f" ]1 B: q
trade-money-total
1 e( O o, V! p R( C;;与当前turtle的交易总金额
6 K& U% x$ G3 ?local-reputation
) D/ E9 m8 g$ z4 F( @7 Zglobal-reputation* @; Z: z4 w. _# u( W; O
credibility
2 {( g0 S) N$ t, g5 S6 q& O;;评价可信度,每次交易后都需要更新
' R5 }) c, ?$ acredibility-all2 n9 m h- p9 P4 U- M& A
;;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1 N/ C |2 S5 W/ ^3 ~$ I5 M' j$ [: d1 w9 Z
0 h9 H0 {/ k: d, s;;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+ A$ G" U. _3 X, f9 @, b
credibility-one
/ ~, O p0 Y0 c: m) Y9 \' E4 T;;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
4 W" G* \* R, d, d# w) ^global-proportion8 e1 b( ^, Y7 x& V* L+ J' T
customer
( _( q: C' Z( R% Gcustomer-no
8 _8 W9 h! P- X* i& w& Xtrust-ok
3 i6 X8 I% ]9 S1 _' d9 q1 [trade-record-one-len;;trade-record-one的长度; ?6 ~! P8 T/ i7 X ]5 E/ C
]
8 p7 W2 r1 n$ B
, C$ r) _( }! e$ D8 e;;setup procedure
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to setup
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ca/ G! o2 ?! E0 d% w5 j
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initialize-settings# t$ }: {9 l7 v; A
% x; _1 x$ \, ^* ^" a4 Tcrt people [setup-turtles]/ s2 k" ~9 _9 E9 }/ X% P: L" ^; Q
) ?1 D" @6 M) x- C- h& _3 d& m# l
reset-timer- f4 D N4 N' S: L+ y. P6 `
5 j q+ ?' K3 [6 X
poll-class5 T& f" Q: @6 Y% a+ _
/ u `2 u' m- | [* E4 d6 m
setup-plots) Y) ]) U* e& B8 b
2 m. s& _$ |/ [6 Ido-plots; z0 O' S: N! A3 w' A
end% U7 G4 B% N t( z4 u% c
9 h# W4 [& W- M) h
to initialize-settings
, k3 c. v) q+ D. C! }- `: j6 @' ^* ~8 p& V
set global-reputation-list []
# ^( h$ k' n3 S3 z1 y$ v
3 H9 n8 d" T* q" {3 ~# Kset credibility-list n-values people [0.5]7 q* Q# x& L" D c& T. U
: i* Q& H, w$ ]( yset honest-service 08 m" X/ ?5 k$ i/ b% J
, |" M% B T% Y8 s/ o) d4 uset unhonest-service 0
# S2 @) _: @9 N6 q8 g, X% X5 [9 a/ K6 d2 q8 W
set oscillation 0) P& B; I& O h5 r& p$ z* X" \
1 M B' i' l' `7 e! L
set rand-dynamic 0
" }; C, b: D% T/ Z9 |; hend
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to setup-turtles
- Q! G7 k4 f0 A$ m" m+ e; ?4 ~$ A3 ?0 |set shape "person"1 O- E2 A; s1 g; I
setxy random-xcor random-ycor) M. P$ H! f' f. P
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] - w6 N; Q, D8 a# l* V9 p+ k
. h4 b6 D$ G& X
set trade-record-current []
7 f$ m8 m! V4 c" A9 R; uset credibility-receive []
7 M5 g; c9 e3 ]' Q6 Xset local-reputation 0.55 g3 N( u" _8 k: A |9 l4 x
set neighbor-total 0" v/ c4 `$ j: ^3 v8 N0 G0 n
set trade-times-total 0
; l+ v" I5 R( o: H9 I! N; hset trade-money-total 0/ K$ Z( }+ A6 h* i' g
set customer nobody
3 [: i3 ~% B7 v; o% a( o3 oset credibility-all n-values people [creat-credibility]+ N$ e C: t# B0 ~/ m
set credibility n-values people [-1]
J" X9 C6 h b2 i1 ^; [get-color
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end, a: g& m8 r' C: n9 Z" {+ ?6 ^
L! V4 ]( v. y! W& s
to-report creat-credibility# m& K8 j: ?& K
report n-values people [0.5]
! T5 _, ]2 D* P) l" Iend
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* Q0 r) P; ?; _% `to setup-plots- o1 s# k5 v( O
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set xmax 30
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set ymax 1.0% A! A) Z" k8 r& j5 g
' D, ~0 x' f: \, k$ [1 z- X7 Rclear-all-plots
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0 V0 I- _ q; }setup-plot1
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( _, G, A( c5 w2 M; ~' gsetup-plot2
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# U$ M1 [) O, R7 }2 ?setup-plot3
) d; f9 E. i; B$ U7 D/ ]; r# g1 ~end+ e! v9 P+ z4 E* t g
1 z Y( {$ W" O4 T8 ?8 D/ {;;run time procedures
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e9 [/ { w8 W3 ?to go
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ask turtles [do-business]
1 [- M% M$ {5 S; ~: hend5 _% B. N0 o% o, R' Y
1 \' [. k( [9 D$ o0 E! {% L4 nto do-business
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$ e' ~" r) n. ~# A7 E, _3 |: f2 K, a
3 J* x/ z7 M! drt random 360( O9 W! N8 W. A
& w1 O4 k3 e9 k. S2 _/ V/ _; _9 Vfd 1! m% E# P0 y% g& F* {& N4 q
* [" a9 u3 j Y* R: P) |3 v0 w8 Y
ifelse(other turtles-here != nobody)[' v/ Y) M2 o% m8 n- ]$ {7 Y
8 g/ _- M; Y- n/ J( {6 lset customer one-of other turtles-here# F$ u; p5 t: @1 I4 |7 E9 P8 s& C
! P( ^% ?+ J6 `7 J! r1 v, e;; set [customer] of customer myself( x& w I$ {0 g6 l8 d. {9 e
2 V2 y( V% `# J3 S; sset [trade-record-one] of self item (([who] of customer) - 1)* O/ _; r o* K5 ^* Q
[trade-record-all]of self& J* X, ~1 L4 c" b# f
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& F% d' x& U1 B6 m5 d
1 S$ m7 e2 l( F3 {set [trade-record-one] of customer item (([who] of self) - 1)
B) g( u, t% C' Z. n$ L, h5 I3 i[trade-record-all]of customer
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+ N" C( i4 I8 M, pset [trade-record-one-len] of self length [trade-record-one] of self
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. x- h; a9 B9 T" zset trade-record-current( list (timer) (random money-upper-limit))$ u$ _5 [' F% u2 f0 O2 D
5 d0 ~' t2 A4 gask self [do-trust]# A$ l# q* r: I. K# U& z
;;先求i对j的信任度9 B, g4 W, m: R: d1 a
0 \0 J& n4 F9 J" V) x$ \if ([trust-ok] of self)
, p" O) t( |6 q: J;;根据i对j的信任度来决定是否与j进行交易[
4 t8 e7 N" n6 z1 c9 |7 g. ^; ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 o$ C6 V& ?2 A n, K7 r: g* C# k, K3 j$ q; M2 ?
[1 O h: d6 z( [6 N0 j
: k- ]7 k9 r% x, e9 X! _/ ~$ `; udo-trade$ S# F3 G: i- R x2 P# w6 J
+ B7 U) ^' |& m, i$ M; Aupdate-credibility-ijl q, S7 j: n9 o- I& |
5 F, T4 l! y% W F9 nupdate-credibility-list7 B6 M2 q) y+ O# k4 M+ D' j! T! F
( t$ [" j0 n; J+ \( m9 _% i
# }0 n+ s2 H$ K4 L) M/ U% u1 X$ L# Nupdate-global-reputation-list9 Z$ y9 d$ u& B2 z/ v l2 c
; X# ?2 L E9 C) Wpoll-class, n$ t8 E2 V# J9 c5 t+ ], b1 R
" r, n5 }& p- Y; X( d" x2 cget-color
- ~2 x- `+ y {+ k5 l. b, x6 q( t: A, x3 o
]]6 A, M" W" c( [5 v$ L M
- x$ Z* V! Q2 K w1 d# ^( r
;;如果所得的信任度满足条件,则进行交易+ P( Q: d: }, L e( O
c" T6 v) r: N8 x* ^+ F: T[8 L" ?2 D- E/ @, M4 J% r# r
8 d# T) E* z4 M$ W8 b
rt random 3605 z) `- u' f6 P9 R( |1 ^1 ~
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fd 19 U* s& f7 e4 L% y
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end
; s- b- n- X; F+ h. F
1 a$ Z1 q- G, d6 Cto do-trust
! Z4 [& }0 z* s! r! Zset trust-ok False+ p7 E/ B7 T0 ~' e; A
. w! ]$ g4 L& L) `
" U9 _0 F( _* R4 k) o2 mlet max-trade-times 0$ |$ J' V! C* M6 Y0 j$ V
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: D9 n3 {& B, l; k
let max-trade-money 0' o; J: |2 M' L& g2 Y- W4 V) V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% C' ]' ` L# H6 K9 O2 |, Nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( v, g0 X" B; i% g, ^2 x
( p* O8 ^+ q9 {; C
$ }! f0 m: W) L
get-global-proportion* U$ I+ ?2 H: ?
let trust-value
" t6 x; m6 X$ ~$ A6 slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)+ w4 V+ ?! |$ O
if(trust-value > trade-trust-value)+ T2 M9 a: J$ o9 } c0 q5 d( N
[set trust-ok true]
5 p! v0 e& R0 Q% o0 f* pend
1 [, \0 k6 x2 C4 c- B2 @# ?
. P' @$ M: {) q1 K, Y4 e& T$ pto get-global-proportion
( D7 k4 r! t$ H8 [8 ? [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" E- f& w" F9 o* C[set global-proportion 0]
2 i1 M/ D) w6 u2 D- E p8 { f( l[let i 0
( R4 D& o' d2 v2 \$ _6 ^let sum-money 0
" n. q5 R# q- d* h" P" Bwhile[ i < people]
# R7 b0 B1 ~; S3 t& s3 y& v[
0 A) i9 j. m, B4 e9 `( A/ ]if( length (item i# S- o2 _+ H; m: ]# e* E! o
[trade-record-all] of customer) > 3 )
4 ]7 f* L0 a9 G% Q Q! D[
! L% R+ S4 @. y3 L2 Gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' T( r; Q' i4 i" z
], z# ^6 V. h& A' K! i
]
& U( x0 p- a" y* _; q# [let j 02 N+ E1 u/ H3 f% d% n! X
let note 0
* F' h& W0 ?0 w) d3 J/ E5 pwhile[ j < people]- i+ k r: _# l% `2 ]! s0 u
[
3 n+ [2 [5 K& a; E8 r; kif( length (item i
& F7 }5 t! S1 W5 B[trade-record-all] of customer) > 3 )% R3 B# ^5 I/ _. A$ a) @+ F8 x
[1 K7 N# X& z; W$ f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. d% ]4 ^+ ~* x' C1 X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" \7 h7 W. w% I. i$ ~: u9 c L[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( {& @7 O5 U5 D0 m# q, K& ]5 b
]1 _: p( b5 k) L
]- [7 f7 d# F# y; ]5 \
set global-proportion note
" V5 z9 q( n- k1 N- p( _" x- F]
* d' d/ z% n" k ?( ^end/ A9 g) }8 u) o7 `
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to do-trade
5 `5 F: m9 ~/ n* g. s7 ^;;这个过程实际上是给双方作出评价的过程% @" i0 [( h, f$ b+ L) V: h8 ?* Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 v% @$ h/ S7 M. F% ^$ S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. J+ z' C, s- C, l
set trade-record-current lput(timer) trade-record-current* G# w6 v+ l( y" Z: o, a3 V
;;评价时间- y7 ]+ |) k) [
ask myself [ |0 n& u, v" ?: ` I6 ?
update-local-reputation% y/ T$ T/ [. k
set trade-record-current lput([local-reputation] of myself) trade-record-current
# n3 _) C. H4 B" {6 d]$ n1 r+ ~3 R# c( e: G1 N9 `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) b" c7 k9 f! G' J. `/ g' c0 Q. F7 d
;;将此次交易的记录加入到trade-record-one中& m9 r. |0 j* z) M% N+ u3 m
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
]( c' M* f$ C& o; ~$ nlet note (item 2 trade-record-current ): m- ~0 g/ n& }0 S0 D
set trade-record-current* w2 ~8 V9 n$ H- q
(replace-item 2 trade-record-current (item 3 trade-record-current))
) @7 o) l# A3 y7 v" b; iset trade-record-current
; D8 u6 w5 \/ m- u) ]0 P% H(replace-item 3 trade-record-current note)- x7 [) `& S8 _. F
# b" W4 X3 q8 C) v) R
/ t& ^. t# L3 r/ A1 u" {$ N4 [; lask customer [
& [- c: q# z! j( }; T2 _$ Q. r# Oupdate-local-reputation
, y$ y" k2 v4 yset trade-record-current
/ |; @9 d$ p" Q$ G" U: ?; n7 W+ P(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 u: I$ P0 P4 p5 R% K. ^9 m! h( A
], r( M* ^, p2 T+ P
: [; H# Q4 Y( v9 _- s3 c) K: r" q) c2 ~
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 ?; \7 H5 h+ Q/ e; S$ ` m' P
9 [4 b: G8 r* w# _set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 m2 v/ X. w9 j$ @: t5 y# i8 S;;将此次交易的记录加入到customer的trade-record-all中1 _- x% m4 W" l8 a
end
1 x7 {$ p$ f0 G
5 X: C. M7 l! D. g5 v* ito update-local-reputation! _5 |; ]* M: a- X9 \
set [trade-record-one-len] of myself length [trade-record-one] of myself
3 ^& B' o, i2 _7 [& a) ^7 A9 J3 H
' c% z2 ^6 v- I. | n4 O9 b( I1 } W4 w% W( U0 ]) ]$ Z4 _
;;if [trade-record-one-len] of myself > 3
. f" H( M4 J( x( p- Y/ K% s D, |update-neighbor-total
3 l' b, g- L; w0 L& P;;更新邻居节点的数目,在此进行+ i4 i& }: b* u/ F: c/ X. o0 ?
let i 3) D2 a. A7 H; c
let sum-time 0$ Y' D% i$ Q) B" L" U1 O, m! O
while[i < [trade-record-one-len] of myself]
`0 c c3 }7 y0 }[+ u2 ?! B) }3 o. ] d q5 A
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 f) l, ]. L! n3 B6 {
set i
" Z' f$ v! z0 U5 v9 o* {" C5 x: d( i + 1)
" D( K1 z: ?# ^4 h& G]( s9 e5 W4 s# h8 a b0 K M; S
let j 3
' ]7 x4 r$ h5 u8 ^4 N; n r4 blet sum-money 01 f/ `# V3 u. b. X2 g/ [ O
while[j < [trade-record-one-len] of myself]& k+ W6 }; h# |; V
[: `5 H" F' @- }, [/ [* E5 z( |4 w
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)
5 u1 T& h) W3 [set j
* ^ Z, S+ q6 b2 t( }) j- v( h+ F( j + 1)
3 P3 f9 p3 d9 n9 t' X7 `]
! o! b0 z- K- D" L8 t2 Y; @let k 3/ ^! B3 O7 n. ]8 [% Q, z6 h
let power 0
0 k* X* k$ s9 s6 `! e; v. e9 P6 elet local 0
& J' [5 y6 \# e4 [while [k <[trade-record-one-len] of myself]+ n/ |5 Z' t& @! q7 |
[
/ u: F3 a" }4 tset 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)
% |+ A1 S, U* L- F7 z8 ^6 v1 cset k (k + 1)
8 ?8 A- u) j5 h: k]
. n# m( b5 E5 |4 w( \5 _- t7 ]7 Mset [local-reputation] of myself (local)( W/ D$ [& Q% f3 ^) g5 @! l( l+ P7 x# i
end
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to update-neighbor-total
: |3 Y: ~/ O5 [: B) Q B3 w% h) z
+ @/ l$ A; k( r' r/ T, Lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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: N) a% Z+ {: D7 K1 l8 {* N% g8 {9 C9 }' u3 `0 @( D. |! }
end5 @7 J3 T( A1 Z$ O5 Y0 }. m
' [+ v& P( S6 i3 x2 g2 y
to update-credibility-ijl
2 k* F0 V( ? Z3 @
/ j- M2 o/ M6 x0 I) _5 a, X;;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 u1 L; h0 e8 a# v
let l 0
, K8 P# |+ h% |& S$ ~; @( zwhile[ l < people ]% c! U5 y' y) a# H
;;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( G2 _4 I) I. a2 ~, v, f8 j. K
[1 S9 F. o$ X8 s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer). p1 F, I0 b" R1 Q) k. ^3 ~; `' x
if (trade-record-one-j-l-len > 3)
9 s( V' {7 C! f: U' a[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
- T, z3 Z& V5 _" y G+ Glet i 3* C6 m: U+ }. E( v0 e" \; t9 {6 i* e
let sum-time 0
6 p) [7 g. h2 X" s3 Vwhile[i < trade-record-one-len]+ M- s) o0 z- w5 A8 C
[
7 k! ]. X0 A% T5 rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 y8 G+ M$ O0 {+ x6 L1 d( |
set i. u7 c, e# S: K4 s# P L) U! X
( i + 1)3 \, }6 v6 e% `$ g8 a! y: T- E
]
3 r* j) e$ g+ \0 I0 z* j' y, W" Vlet credibility-i-j-l 0
* H* }5 I: M$ R1 D: r$ C. w( k;;i评价(j对jl的评价)
, l) i( n9 W/ z* `. `let j 3
! O& `+ p2 K: A- G# \& `let k 4) v# r3 d4 e' l9 \+ ^& X
while[j < trade-record-one-len]
- R l+ @3 m i[
7 w2 R1 Z: O* c5 A) Ywhile [((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+ W( x3 G+ V/ z( j+ n
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)4 ~( t0 y3 Q+ F/ }& W1 q
set j4 d4 S. ^; O/ L
( j + 1)* d, j: s4 f2 k
]7 m S8 @5 x" o0 M5 `7 J3 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 ))
$ A- i- S* _5 }# `3 _2 y& c
2 N7 i* C: n Y
5 G8 F' z6 c7 ?' |+ W3 `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ U* [- G# O+ g% i; F;;及时更新i对l的评价质量的评价
4 d" ~4 L/ W( N7 M! D( m0 b+ yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ [! G" N$ _' w. p( p5 yset l (l + 1)
) h5 j D' u& Y9 A]# `. o; G5 U8 }: P
end
: z5 q1 ?$ } i" O" i2 W+ w' Y" j3 \/ y6 Z8 O- E5 @* R
to update-credibility-list
( j7 F( X: q# j$ p% W4 Elet i 0
8 a: K; _! g7 S/ a! J/ R6 kwhile[i < people]9 q" V! u# Q8 ^9 q" B8 @" p
[5 D$ F1 O0 D/ `0 L" ]: T
let j 04 H# p" K$ B4 j6 Z0 c
let note 0
6 }9 h1 ]$ \: G6 ^let k 0& ~9 t& y5 B4 i6 S
;;计作出过评价的邻居节点的数目. f- }( l( s7 n$ a' ]
while[j < people]
9 a7 o# N; e/ {% j/ y[
h$ ]- ?# g7 H, s2 U: _if (item j( [credibility] of turtle (i + 1)) != -1)
" c D% R0 W$ O. Q8 p, }: D;;判断是否给本turtle的评价质量做出过评价的节点- R1 y: C4 J: W
[set note (note + item j ([credibility]of turtle (i + 1)))
1 B" e, e& C$ f1 z;;*(exp (-(people - 2)))/(people - 2))]6 _" R$ }" C# Z; B0 Z7 k' F7 j
set k (k + 1)
" f( S. M2 m6 n1 W3 w) m]' y; Y {5 E8 _( c7 }/ L4 l
set j (j + 1)
3 o, J* y3 m/ s8 k. Y8 x, A]& y2 g9 S/ g' K7 }/ x3 K
set note (note *(exp (- (1 / k)))/ k)4 H4 W" ]. a$ K
set credibility-list (replace-item i credibility-list note)
" `, X9 S( F) |set i (i + 1)
8 U3 K% f; P4 L- K+ c]( l7 {" p4 J5 Y$ i* Z7 H
end6 X$ u; P: B, p8 D. S) N
3 P# D9 o' x1 r5 f% mto update-global-reputation-list6 u2 F5 U A8 ]6 H |+ `
let j 0: g9 ]5 ~( j- v! o
while[j < people]9 G% b6 n/ @5 D$ E
[, |/ z1 B& g4 g' Q( `: s) s
let new 0
/ M! X8 C7 _# s T" {/ Z& ^;;暂存新的一个全局声誉& H. T# N0 J( o
let i 0
) s9 k) o0 y* T Jlet sum-money 0
l3 ?. v f' q" A2 y5 Vlet credibility-money 0% i/ g, x6 \4 T/ n! U! T$ T
while [i < people]% @" J, V# m9 V; A& i' i; ~/ r. I
[* B( j2 T% C3 g: m+ m! s$ s1 s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 `* N' N+ T1 T3 n9 C6 nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ e9 y9 S4 P/ w2 U4 Q& X$ I
set i (i + 1)6 ^0 _4 P. f {1 F
]
1 M' Q' p5 G4 c% G4 ~let k 0
, V, t' \% h/ G" T. l: Llet new1 0
$ X6 Z e0 J& `& ]6 h# {while [k < people]
2 X o9 ^5 W# e P, @4 @+ l6 E[7 N& p" _0 f$ c7 l2 d/ p
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)3 }. \$ v8 Y0 X
set k (k + 1)) Q" {$ |: x) u$ W% F2 T8 t
]
/ r+ q, h S9 V/ iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! M! P* H: r7 e! h' M. g" U7 G
set global-reputation-list (replace-item j global-reputation-list new)
- J9 d# K f! n3 X, k* I: i) gset j (j + 1)& ]6 n6 \, d; J7 N: i
]
+ P: Y2 n, ^+ S9 l3 A) dend
c3 n7 a; i- [, \0 I) @# u) m6 A/ @) }5 h' Q0 t
0 `, {0 `% J, i5 ~ L: m9 @! B2 O: @/ D8 m
to get-color4 W7 N+ Y4 B/ U1 G/ y! k$ z) T: j
- p( \% ?9 H' C: ]
set color blue* l v; X7 ~4 c M1 ~0 K6 v8 n7 I, ]
end- l% q3 j8 S- Y, H' F; g {
! \$ [0 Y, @! g
to poll-class. b0 b, M" o4 {7 x
end
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
1 K) ]8 H* [% @. e, g! A' V+ h4 _" u2 j
set-plot-x-range 0 xmax1 q9 K( {: `( R: _3 a8 A
4 Y3 o8 `0 e& cset-plot-y-range 0.0 ymax9 W4 p8 ?$ V* J8 K/ z
end
1 w0 _1 y1 |$ s* L& L
; s% i5 o1 W( }' |" C4 r8 g( Eto setup-plot2
3 Y K) m0 l+ ~$ {& a2 i. d& B8 W x( l8 \' A+ I5 E/ F, e* |
set-current-plot "Trends-of-global-reputation"
) B5 U; p& Y+ b. n$ }9 H( O% T
3 p- C+ l& T+ L+ a* Bset-plot-x-range 0 xmax
. f9 H; p1 u# _' z/ R, C# X0 R
. \9 @3 m! b; F/ o7 Gset-plot-y-range 0.0 ymax" f: N% e: N! g5 R( C- m+ ?- G
end
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5 u9 @8 Z9 ~8 m, B: j6 D2 Bto setup-plot34 ]4 g# P; X/ a7 g1 |: ~" j p
8 C( W: X; e9 K% ]& sset-current-plot "Trends-of-credibility"
, b8 E& R# `; h. P) F. x
1 m0 q: s% a; w W J0 Cset-plot-x-range 0 xmax
: n0 q( p: m4 D4 T9 G, w: v* J; S9 D
set-plot-y-range 0.0 ymax+ m, l/ ^% j, P& [7 R
end
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to do-plots
0 }1 j2 z8 r8 V# Uset-current-plot "Trends-of-Local-reputation"% L: J5 [9 Y. ~+ J! `4 J
set-current-plot-pen "Honest service"1 x4 p5 [5 x# E* g2 ?
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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