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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
& X) r/ Z. X, I5 }8 o' \7 a# K. w6 _globals[' f* m) E0 y, q5 p
xmax( C* E3 q( G- Q* l
ymax
2 I- X5 O, Q; G4 I0 zglobal-reputation-list
# c6 D, l5 q9 B5 d& y
$ A: G; j# i$ ~5 Q;;每一个turtle的全局声誉都存在此LIST中4 C" T d# y2 K5 U' J. M
credibility-list
! B0 n- u& M! R( l, m;;每一个turtle的评价可信度
! p! y; Y4 U) S1 ~& v' N- } c- \honest-service1 D, }% G) r+ w5 D: V
unhonest-service
: q6 k3 e# t1 g: Koscillation. p9 w3 j# s2 W. P o
rand-dynamic
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g7 a) M/ f* ?+ m! R% e H( g. E9 Q# _
turtles-own[
3 q$ m9 p' A# |) U9 M$ |# N) itrade-record-all
, j9 T& b( e! l8 @3 U;;a list of lists,由trade-record-one组成
+ b" a# ]+ Q. k2 b" N/ ptrade-record-one
- Q! S6 \, q3 K3 T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, m: Y. p2 ]& ~8 _% u5 X7 u+ H: P: Z: x) ~
;;[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]]
' j6 _( B; q; H/ i, 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]
) c3 f2 O) Z, D d1 K. Q. Rcredibility-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
: v J' n/ E, C; K- ?0 Mneighbor-total
8 v1 a# w9 N' l" t; i! _;;记录该turtle的邻居节点的数目
; A9 i1 z$ T7 ]% l) E5 `" utrade-time
! n4 y9 c& W9 b; u1 w% |;;当前发生交易的turtle的交易时间1 x! l) h g4 m& y/ r& k ^
appraise-give
" E. k/ q8 l6 D, V$ B1 U R% s( W; b;;当前发生交易时给出的评价
1 K2 Z; M/ I! M2 A' vappraise-receive2 X/ P# d( j# x8 @# t% c* h
;;当前发生交易时收到的评价
! P* h' I2 j3 s. ~. Qappraise-time" O! ]; }; P3 Y* y" ?
;;当前发生交易时的评价时间
' F5 g8 X: H9 B" p1 P* x. Ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 O' e, |2 g0 p! C$ ~3 i
trade-times-total
' N. g& P( {: U9 O };;与当前turtle的交易总次数$ b2 ^; W1 \: v1 B' G
trade-money-total
, ^( I+ K2 m2 D1 E1 z" _+ R;;与当前turtle的交易总金额; A$ K8 M/ f9 l3 |, @ D( w
local-reputation
8 p3 O L3 R9 E6 R; Mglobal-reputation' K7 z- Z. W3 F1 s% @
credibility
8 D6 A0 `0 ~+ v, Z;;评价可信度,每次交易后都需要更新) ?9 k" g/ ]1 a
credibility-all
, l+ X. {+ m j- @/ f# ];;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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;;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) `0 r; E9 N Q E) ]2 B8 a
credibility-one; I( d5 A7 D( j j& G
;;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( L% Z& P4 a7 U3 \+ X
global-proportion3 I& b3 b! |; ^4 g
customer
! f2 x3 v) S0 q. zcustomer-no$ G, u# u3 \( w2 a5 ^9 J& E
trust-ok
0 G! l* N! J, E2 x% Atrade-record-one-len;;trade-record-one的长度6 l# r% d, l! C9 {9 q6 K3 G
]
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3 I. a9 B- X8 U+ o- k6 };;setup procedure
) y( F2 ~" F: P. f2 d: j/ ?' N) v6 A4 a& n7 ?& R' a. q1 b1 o
to setup
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* H6 [8 M6 m) b( J: E+ Aca# r% H& k6 S( q P# R1 c+ z
+ A( M, m. r! f) [4 ?6 C4 K; B* h
initialize-settings/ t2 v# ^* ?' i4 O, m% L) S3 y
4 s% e9 i X G
crt people [setup-turtles]1 O) @! x# ]+ O$ N5 C! p
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reset-timer
2 o" f5 Z4 ]0 i9 R1 B8 R- N9 k8 E
poll-class" J+ d$ k R6 ~5 k2 E
; r/ e. W6 f0 D4 Z' b8 m! K, Jsetup-plots+ }3 {! Q V7 ^; x2 ]3 m
8 s2 A7 Z5 d! n! U+ A, s; J, wdo-plots9 r2 n( ]. i4 h3 K
end- q7 r/ \ f* O; o2 f
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to initialize-settings5 m0 Z. [( m1 t4 S
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set global-reputation-list []
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: c7 L0 X5 T! f4 Vset credibility-list n-values people [0.5]
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set honest-service 0
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set unhonest-service 02 U1 q- j( F+ x2 R
$ q# }6 U/ c+ J6 R: D; uset oscillation 0) r: h4 z+ H3 E1 U+ r, C! l
- N8 m5 y5 b! {# R9 I0 Kset rand-dynamic 0/ j9 k( O7 C) M8 `3 ~) k; y
end
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to setup-turtles % ]7 X; }9 ?. h
set shape "person"# |/ F/ J3 T7 q4 q& _
setxy random-xcor random-ycor
+ l) P# P0 A6 u xset trade-record-one []
; Z% b& Q. S9 y [/ r; } x& C/ m) w( c2 y# l+ S' U: \
set trade-record-all n-values people [(list (? + 1) 0 0)] . E; x. X/ y) o9 g: X; \
5 |! I+ i8 c; Q/ s) [3 M3 Iset trade-record-current []1 j) c: F( f* g% y. w% r# W8 ~1 Z
set credibility-receive []
( e9 X6 v3 r% j; A1 M9 Lset local-reputation 0.5
0 R# P9 E. X, v8 ^7 M# N$ j5 eset neighbor-total 0- C4 m J. o( @9 h. t( \4 X
set trade-times-total 0
- A9 R# D. c) Q5 b7 Uset trade-money-total 0
1 X+ z" D+ N4 m% r3 m! D( Z4 t+ p1 wset customer nobody
1 p, p" G$ T4 v8 M6 i1 Nset credibility-all n-values people [creat-credibility]# J3 b: p1 h4 ^# f. n0 F
set credibility n-values people [-1]
8 c+ v$ L# [1 i6 O. n& zget-color
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) u- u% s. }; ^/ E- Iend
) C8 {6 q. Q, I* Y+ F' a, b! ~
/ H4 E D+ g f; }" C; Vto-report creat-credibility
( J; c$ R* H1 k6 j, yreport n-values people [0.5]
" @% r" Z% ^/ G! yend% o2 D G) Z& K' j6 f: I5 j
2 \: {7 j0 H! m. ^! P% ]* q, Cto setup-plots
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set xmax 30; R9 V" M8 G6 `, m$ e3 o- A, h
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set ymax 1.0
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6 E( o5 E$ U Y! E- ?4 tclear-all-plots0 \# U8 g9 F$ ^+ F2 r
) y- \- e* c6 c+ fsetup-plot1# T. P6 t, Y0 P: ~0 s9 N
( {2 o6 d) |0 C" q$ L" O: [9 G( E
setup-plot2; n. j$ d0 M6 e( f4 y" C0 x% ]0 Q
% }. B8 D0 Y" S/ W) Zsetup-plot3$ Y' v4 z. T9 Z3 y0 `
end
; {; o% u$ o, z; B* _& U- Z# a) u9 v M
;;run time procedures: D9 u6 n8 s' S; `3 m4 ~
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to go
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ask turtles [do-business]$ X% s4 c" i2 R* R! X }: p( w4 G
end( [+ q7 g( ]% T/ B" f6 z* x5 m
R5 B( o. @% z5 M8 a: e6 I3 dto do-business 3 R' [; }6 e5 f
% h7 U" p M7 t2 x3 {* |% m
5 v, D& a9 v; Vrt random 360
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fd 13 ~: S5 Q. _1 O: W6 L) d* J' V
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ifelse(other turtles-here != nobody)[" ~5 F& {1 e& u, @
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set customer one-of other turtles-here9 |/ X) V+ j2 \$ h
" u5 B# a' @" m, K;; set [customer] of customer myself
( y5 Q2 c) t' ?7 i" `) k/ _2 |% D
9 Y E( c! B1 E5 V$ [0 u7 F7 [set [trade-record-one] of self item (([who] of customer) - 1)
5 e( T! A4 K$ ], O8 E9 H% x: I[trade-record-all]of self
4 J) @* G% y& `3 j0 };;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. @# ~) v! u, L7 L+ s d
( B- J5 z+ [8 K8 Cset [trade-record-one] of customer item (([who] of self) - 1)
& M1 c& `( k9 H+ i[trade-record-all]of customer
# m: k" f, H2 M Y
' v7 z- V& r0 }9 U+ ^0 c9 ^set [trade-record-one-len] of self length [trade-record-one] of self
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# {/ W& h$ V: o2 Tset trade-record-current( list (timer) (random money-upper-limit))
: |6 _5 t' p3 [; i& T6 X5 _6 j# X1 w% ~ S4 R& y: b, p' x
ask self [do-trust]1 ^$ i% G" Y: u9 K
;;先求i对j的信任度
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if ([trust-ok] of self)
0 c! ]) w- N9 a+ R;;根据i对j的信任度来决定是否与j进行交易[. t) z: O6 h8 f' c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 d, |4 L5 B R( w. ^! G
) ^" O9 c- P% x# J" j3 ?
[
& ` v0 V3 e2 v5 M) L$ c0 s9 U3 Q: Z: m; O7 o: L% ?
do-trade
* B3 c, d8 S- _ y
7 ` r: j9 g0 z. [% b4 D% Hupdate-credibility-ijl
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update-credibility-list
/ s- h" e# \: r9 N$ N
5 Z4 W) D" q9 G2 |
1 t/ _: C3 B8 l) aupdate-global-reputation-list- v" A/ Z3 |& ~) q; s3 T
% J: _" Q/ R! f+ W0 Z! ]poll-class
8 H! K2 R4 x# {( `- _; q+ w; Q4 f" Y
0 y% h% o# K3 a) fget-color2 Q8 p( E& J% r( R( t" h5 \% {2 l4 v. v
r; V2 q9 \& @8 U# K/ Z
]]; L" p6 d5 K: h# m
1 D$ m7 p! _4 e" E
;;如果所得的信任度满足条件,则进行交易) J& j& x' _/ L+ J
8 z9 d1 E) O) U% a5 ]7 \8 m[
/ e, F# g9 H- T0 V, Y7 [( X5 v4 e1 N' t+ P+ s
rt random 3602 Y. H% K+ D' x5 Z/ f
v: u8 `( p7 k( xfd 1
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7 [3 r+ B$ i% q" u; F7 Y]
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3 C0 m8 j: q0 i: Wend
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to do-trust
+ Y8 A, G& w! N1 I4 E5 \: h$ cset trust-ok False+ |1 d- y& q B# F% S
- V) B8 R! ?4 z3 h& I, H0 y B# {/ d: d* a9 d. s
let max-trade-times 0
8 s+ H; W7 h! t0 K* O' }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( z+ H$ S$ U: d9 g7 O
let max-trade-money 0
) m3 T' V+ T- `foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 k' e I+ F' z0 _+ |3 O* Q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* t* ?1 R- x+ ]% C M- w& @6 _" p* K$ E9 \9 {$ G: e1 j( _: a
' c$ J" A1 x; U% k8 }7 Oget-global-proportion
q# c8 P4 \0 M) nlet trust-value
7 E8 B% Z& z# [+ f0 h Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
+ [' W+ T1 J0 G% Nif(trust-value > trade-trust-value)
W1 ~+ z! b5 `[set trust-ok true]
4 h, d U+ e6 u( K: Eend
$ w( X$ E6 @7 P" R/ a6 Z
3 `$ ]& U. p5 x2 K1 \- ?to get-global-proportion
D( Q" ^5 X5 Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 Q1 `2 \: p, G0 X ?4 G% H8 [[set global-proportion 0]1 K# H+ i) O8 U0 |* \4 H
[let i 0; J1 {# \4 U9 E" Q2 G5 P, N
let sum-money 08 u0 M0 f! I) x: {1 W1 U f
while[ i < people]
( }0 e, R4 U5 |. Q( r/ i[
8 B: b0 P) S% T: V# u& Y3 {if( length (item i2 \" x# ?" X4 `7 y" M
[trade-record-all] of customer) > 3 )) W5 g, s( x1 j. Y0 o+ ?
[3 E, }+ p5 T/ ? [( \7 d
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]! r' f+ `- F) O* c
let j 0% d4 K2 N1 r7 m1 K$ P; Z
let note 03 b5 i2 G: l/ A/ n$ m, o
while[ j < people]
( w5 Q8 _( _$ _[7 E, ~4 s# E1 {* A* n' T
if( length (item i
3 {/ J/ a/ A6 h2 f' Y; y[trade-record-all] of customer) > 3 )
& x4 S! t: |% k! Q: {4 z2 q; A[
: E/ B4 D- q; ^; W6 }0 ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
Y* o! {% I& |# m! l$ N- I) d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 l+ X9 g5 {1 Z% w6 u
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" ^: `$ j: h+ z% U
]. m# }3 ^4 Z4 S9 G9 e. v1 R8 z
]
% l% t! A/ `: d0 C# Rset global-proportion note) `9 \! q# T: @' O5 p
]& B7 J- t, b M4 k, O
end
5 b" S' Y* d0 R! k; I" l& s" F% `: ^
to do-trade
+ |/ f D6 r2 N6 k; |;;这个过程实际上是给双方作出评价的过程
8 b) [0 s, y- q2 P3 q# x7 v) F Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 C7 ?% X4 S$ ]+ U2 y& z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 y- n5 q8 F! o6 I
set trade-record-current lput(timer) trade-record-current* G; R2 a% U0 }+ Q2 _ r1 H
;;评价时间7 j! q& R4 @- [: e6 v4 X
ask myself [
* ^5 f9 S: _) o$ ?" F% B4 l" u* Nupdate-local-reputation
; x6 R% c: m. j2 G% F. kset trade-record-current lput([local-reputation] of myself) trade-record-current" e" ^6 M$ ~3 ^
]; [2 y1 W- m$ z6 H8 O
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 T2 r! E, P' q! J$ e# c$ [, R; |+ N
;;将此次交易的记录加入到trade-record-one中7 @5 `0 H/ y& _5 `1 [
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 \- U6 ], N* V/ r8 Q% q
let note (item 2 trade-record-current )4 B# k, g" c% h7 J& h+ g) T
set trade-record-current
" \& ]) u3 X' s4 M+ Z! J(replace-item 2 trade-record-current (item 3 trade-record-current))* R* m4 _$ p- v' Q# {5 m4 U
set trade-record-current5 p, v1 e5 [" o0 k n% f" m. R" t
(replace-item 3 trade-record-current note)& w/ n% I3 [) E8 f3 v& \& ]( K
# H, y4 d: H% u2 r( u
% S9 g7 ?) [/ J' p! Bask customer [3 R% |' k3 Q, ~& m% ~
update-local-reputation
- ]) Q$ i* n& T' z, Hset trade-record-current8 `6 X, G/ b5 o: u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 W5 H/ C, V+ R# S5 Q8 l$ _# ~]0 C4 A. Y& o3 N, q- Q0 G6 u; `
' f F, k" v5 d( F" q/ x
$ k3 [: Z$ t9 y& ~4 d! y: Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: R( k6 d: U" _+ X
, P1 |" u2 k5 Mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 K0 |4 F+ F9 A' |8 s5 d! C k
;;将此次交易的记录加入到customer的trade-record-all中, x9 E( u% g) V! f* P% b' y- ~
end' b. J- }7 I8 `: C* A- }
8 u# d: A2 h. n3 ` r' @( A
to update-local-reputation
3 m+ J! S7 h/ B+ D L/ K9 H5 |set [trade-record-one-len] of myself length [trade-record-one] of myself& I' J" w2 }4 D0 Q0 o f, i
4 B# T; R/ C& w* k& \6 K/ m7 v2 n
' d* i2 a9 ^/ z' ~% P) t;;if [trade-record-one-len] of myself > 3 # X+ M& k( x; i+ C, @; D
update-neighbor-total
- w6 ]9 x' ]) S, X4 o;;更新邻居节点的数目,在此进行' y1 F1 r% R# x3 Q( X; u8 m) v
let i 3
1 l2 j. w( Q" w2 @let sum-time 0
- r5 P: _+ _% p) xwhile[i < [trade-record-one-len] of myself]" N' B0 j' a* g8 v8 x
[$ f" W0 r+ P V0 c9 _- a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& e) M5 l7 N, T6 H2 @/ \( }
set i4 o) F: q$ D9 R% l6 O$ V
( i + 1)
! m/ \: C$ C) u9 s, ~4 d]7 p2 P+ B- b" c& U1 y/ b" |
let j 3
4 M N" d3 c6 C& R- Y/ P. tlet sum-money 0' k: K( q, s4 I1 o
while[j < [trade-record-one-len] of myself]% f! L0 u6 c( p* V# ~7 Z$ L
[- b0 [0 C8 b! 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)
+ _2 e9 f' p! l) Z3 ?7 Kset j
) _5 G% d& ^ Q% Q c( j + 1)# W0 g4 x2 P. K/ {( D
]: Y) A4 i1 O) ^$ B, q
let k 33 S* c. n0 h& Q a* B
let power 0# ^+ }% ^1 B$ o
let local 0+ L; Z9 M/ Q' r( l
while [k <[trade-record-one-len] of myself]
; @" I: T! F2 j[, @. L4 g4 C$ h- @
set 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) 7 M! G; a' h7 c. k/ Y& k
set k (k + 1), Q' S: {8 w. K% }; k/ J' V6 l" h
]) K0 ?! v0 D, n5 T
set [local-reputation] of myself (local)
) B/ m( X8 r2 F2 X- Xend
0 I1 Z `& J/ y9 V) D
/ Q9 x6 A, P% z0 b# c2 Uto update-neighbor-total F: B! g' K G' I% R3 |+ _0 _
/ w. G* H; Q1 o* E* w2 z gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 z; ~6 C9 p' \7 t; ]
4 b" _2 w- y; y4 i9 X6 }1 _# u
: m, f: U! Q8 w3 @4 T/ i5 V6 W- {& }end i- ]* Q) }# W( V' a# A. b6 m# Y
& D' J( ?/ x! l; g/ I9 Dto update-credibility-ijl 3 j* H3 e, o* C, k
1 u z z0 R4 P1 i
;;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。
- n! h3 f& }3 \+ l0 N1 {. `/ d% zlet l 0; \$ [8 B ]) b3 I) f {
while[ l < people ]
5 c1 z+ n" l1 X" v: z9 ~2 |;;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( D+ s& d4 ]) x/ F+ e
[
~3 r% H9 n c5 I& m+ ?let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- d6 U9 ]+ X; e( _8 W% l( \% m7 T+ Q/ S
if (trade-record-one-j-l-len > 3)
0 z4 V+ b( N. J s[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: y ?, Z5 ^6 M8 m! t6 @
let i 34 L' _. P, Q L. t
let sum-time 0+ ^4 h! I& ^. L! u6 P. B4 b: k8 ^# X
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). c/ N2 R* Z- |7 u+ G
set i* Q, h) Z G8 }8 P7 p
( i + 1)
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let credibility-i-j-l 0
2 r! x) n+ g- C0 r3 p;;i评价(j对jl的评价)
* F' u$ K9 D. I2 r: Olet j 3+ K3 D: g- e8 n' g8 p) w$ b
let k 4
" l# p+ b) z. ?6 t" Dwhile[j < trade-record-one-len], ?3 K# h. ]+ Q) N2 E. g
[
6 Y. i- T5 Y! Z x 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
* B8 X4 Y) a3 [% 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)1 Q% X5 N- U/ ^( J. k2 t( a
set j$ S+ l9 e- l! |) y, S% k5 G
( j + 1)
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+ |5 J* T7 F2 o! R$ v0 |4 Fset [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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2 x# `. T( q8 `- L9 ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 n9 e; A' k% k2 G
;;及时更新i对l的评价质量的评价4 T( O: s( ~9 F3 N4 |
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 h5 ]- u2 c8 j) o
set l (l + 1)
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# }0 S# F( R/ I+ y0 zend
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to update-credibility-list
$ E: z9 i0 u: I' ^5 P. K& {let i 0
2 L& T! S2 y9 S: V. b: mwhile[i < people]; c8 [5 v7 Z; E) u2 q
[2 m/ K' w- g1 o* h
let j 0% a' e4 I7 H) M- j' u/ x G' ~
let note 0
! I( X, {$ l2 h' z+ U! vlet k 0
7 o9 ?; b0 H3 @. R;;计作出过评价的邻居节点的数目
6 f3 B% [: t) W. U" Wwhile[j < people]
e# a2 N9 X, j" n3 b$ h[2 s, D6 U1 k7 j; v5 q5 _
if (item j( [credibility] of turtle (i + 1)) != -1)
: ~1 z0 h1 ~5 C5 G- g9 _% ?;;判断是否给本turtle的评价质量做出过评价的节点
/ b9 K. f8 X6 W% \[set note (note + item j ([credibility]of turtle (i + 1)))3 D" W, E5 _+ p) p& a/ r( h
;;*(exp (-(people - 2)))/(people - 2))]
% Q% ^! e- {7 H& wset k (k + 1). q6 {+ a" \) ~7 j
]- Q5 Q* {$ g; q& n0 S/ i1 w
set j (j + 1)6 Q5 E4 T1 K$ H. O) y* R" Z- b' R
]) r/ V# v+ ?; d2 J. U. Y8 o
set note (note *(exp (- (1 / k)))/ k)
) Q' C7 h/ [! ? Hset credibility-list (replace-item i credibility-list note)
8 i8 E3 i! H$ N) tset i (i + 1)
j/ z3 E7 @8 s; _ h]& x: `1 }* u" Q& X& U. {: t
end
0 D, S6 _ X. W$ I# @6 o# S
+ `# ?3 v/ a+ I7 H; cto update-global-reputation-list6 u4 {- r9 y! P
let j 0' \7 R7 s0 }* b% i4 i. ~
while[j < people]
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let new 0' ^- [3 }. O2 \5 [, L) M w8 N
;;暂存新的一个全局声誉; a7 Z+ @/ v4 L2 |( a2 V6 d
let i 0+ ~& n* f, e V6 R
let sum-money 09 a B- @/ I6 l; V7 K* r
let credibility-money 0( K; V& W1 J: }4 l' V1 l: F
while [i < people]7 W* L9 P9 U/ Z7 D1 R. _0 Y3 f8 w
[
9 y% k4 V2 t0 g- k( j! cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& o# U0 G! t5 @
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; Q; v* s+ U7 P0 t. \& L8 zset i (i + 1)
+ K6 b& p# r$ ?, t+ h& V]. [, d' A+ m2 H
let k 0
3 f4 x/ @- B) n) I, i: {let new1 0* a3 c( h$ p8 I5 l# x
while [k < people]
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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)
, i6 \0 A1 O) O$ N# M( F: |- mset k (k + 1)
5 E: a) E2 e8 F: E! I5 l]
# h5 O' r' e$ e( M/ Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ X9 J* ?; ~( j+ }4 _2 U& i; v
set global-reputation-list (replace-item j global-reputation-list new)
) Q: v7 Q3 U( I& ?. [, @/ z( a: Wset j (j + 1)% m. o: ]; [- j2 @6 I6 L
]
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to get-color
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& T) ^' ]6 H, \, cset color blue
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9 T: D8 y+ r: U# xto poll-class: c- y$ h$ q' s; m. ^
end: D4 M( D; _3 k* W. H. S
, U3 V; _* }/ ~to setup-plot1
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set-current-plot "Trends-of-Local-reputation"* j( U# A& z/ H s; V
: c5 H4 o4 y1 K/ X+ J3 @set-plot-x-range 0 xmax0 m( y/ `% G! m: i( I
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set-plot-y-range 0.0 ymax
+ T6 p. \- u U+ cend
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to setup-plot27 s+ |0 {1 a/ `0 |
+ ~! X# S3 N2 {" {3 \, m+ c+ F
set-current-plot "Trends-of-global-reputation"
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. p/ r, M8 A* Q, @( a4 y% Fset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax/ B( D; B. C5 c, Y% f/ z
end
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# a" g6 o) ]( ~. @; h8 S# Oto setup-plot38 g- [6 D# I6 p: U- G" A
+ F% ]6 m' R/ }4 w) Lset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
# a- t2 d9 V/ i, K2 L" x
7 ~4 Z. z/ Z1 A9 Q; Dset-plot-y-range 0.0 ymax
( d2 G$ C1 L* V3 }) p+ r+ X# a; l* Aend
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to do-plots
, {) A! C% S6 F4 C$ A$ Vset-current-plot "Trends-of-Local-reputation"0 A- b' v" W9 R M; y" r
set-current-plot-pen "Honest service"; E" g7 U/ b( r+ \/ o
end3 a. U$ F0 t% y0 \! j
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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