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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0 O: R" f1 g+ p/ b5 \
globals[) G- h9 P1 [# D' \, d7 O
xmax
, ]+ [, X+ T5 r% U v" Zymax# V9 B! i( N1 ?& q; o# n; o
global-reputation-list8 O& e7 J! O8 ^: y" S
6 ~! L# e2 G% n! i
;;每一个turtle的全局声誉都存在此LIST中0 x8 G" t0 Z4 ~! I& ]5 l* \. a% s: g
credibility-list
9 I/ q7 h8 ]' }- n7 D;;每一个turtle的评价可信度2 V9 d( |% o0 i5 j/ B
honest-service" J% `4 A% ~6 X) [
unhonest-service, `3 U1 F* `6 P T
oscillation9 [( C% J: v0 l$ d1 ^6 J
rand-dynamic
0 B9 c5 ]8 z: e, _4 ] a+ v/ g8 o]
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turtles-own[
- ]9 t& L5 G8 ]- A: Z qtrade-record-all- N, C, _; b5 {: X U& ]
;;a list of lists,由trade-record-one组成
0 V! r5 k; W8 otrade-record-one
; ^/ H% ~2 E( `;;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 H8 p$ U0 Q$ P: ^9 f
; v2 u: s# @" f;;[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]]& Z! l( e7 V& k- [4 l$ h
trade-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]) J$ e: C6 v# l3 _/ G
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list* B+ k5 \( N" E7 l* B. U
neighbor-total
5 `# e' D% |( Q& Y5 r, U7 l;;记录该turtle的邻居节点的数目$ ^. e$ W: i, d/ L& P
trade-time
& d% n7 ~; S( V0 M' b;;当前发生交易的turtle的交易时间1 _2 A* \) t% S: E7 T
appraise-give
, K+ u% e+ q/ R;;当前发生交易时给出的评价7 Y1 t) g; t" F" j1 r9 k# j
appraise-receive! E$ L, ^2 t1 b
;;当前发生交易时收到的评价% w+ M9 I" J/ s! v; A% ?# L0 C7 Y
appraise-time' ?0 a' B1 c6 R# x. E
;;当前发生交易时的评价时间
r1 R0 ]( V( L3 x1 o6 t) zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
# i6 F. M( G: T( \, N& X# Itrade-times-total
$ E6 L7 y, \- W/ E7 H. V; j;;与当前turtle的交易总次数. ~" v+ d* d) b% G
trade-money-total1 d1 f2 g: D1 V$ S5 u
;;与当前turtle的交易总金额/ D% W! M1 c, M. t X
local-reputation/ k* n" x9 j% ?2 ]+ Z/ O9 f
global-reputation4 ?" {3 V9 g/ \' i
credibility* t3 i* z U1 |
;;评价可信度,每次交易后都需要更新
1 @# @6 D) _# Ncredibility-all
7 t) G5 `, ~: r0 q;;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
* p7 W! p- T! L
5 b3 q# k9 y4 l8 Z;;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% F8 Z' a" v% l* ]
credibility-one
1 w5 Y9 a- t6 c! D' b3 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& r" s; b5 N# q4 ?$ o3 j7 l
global-proportion' |' a. |6 E- |8 k
customer% n: g% r- R- |. }8 b
customer-no# K N1 g" Q! S) @
trust-ok( j9 b& B" v9 q. x% u$ \ l; q
trade-record-one-len;;trade-record-one的长度% m( p( e( @. \: N# J, q0 O
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8 h! C* M/ g3 p+ ?, C;;setup procedure
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1 Q0 s* \8 g/ O( D! m' b j9 nto setup# ]8 k) |- S' C- }
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0 m+ D9 l! ~. \$ G& x- O4 Yinitialize-settings
/ C' H- _9 {( Q
P) F6 {; p5 a6 Xcrt people [setup-turtles]& m1 C4 y: Q8 s0 ]: u8 Z
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reset-timer
x3 `9 x! W5 z! @. O0 k; K
1 D, `: t/ l) ppoll-class
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setup-plots
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5 x& V' y: ~/ `! }+ t r+ e8 Kdo-plots8 v- N( \- ~6 V ]+ \# d3 [% p( ]
end+ {( b- T. E @
% n7 d* @% W2 y1 ito initialize-settings
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, l( O# ^, g- R& q- k7 [ U' qset global-reputation-list []
0 a6 x0 j; E/ [" o0 Y6 I s
2 O' ]: x8 }; Z, a/ mset credibility-list n-values people [0.5], N3 [7 I+ Q; L/ X# U% J
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set honest-service 0
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set unhonest-service 0: ?) u3 ]6 l3 q) i9 ~ p. e+ ?" {0 g
4 _9 j: |+ r; [, J$ A6 t1 jset oscillation 0
: ^* O3 k1 |6 \6 E4 X
( L* w+ Y; K \/ h1 j' gset rand-dynamic 0
; q+ d; c4 k/ L' b. y6 v8 {end p8 u5 _0 J `+ M8 x
8 D4 ~* k# U5 w) `: ito setup-turtles
1 J0 x7 Y6 g' R& p4 [$ w+ P) Rset shape "person"' x, O- v( S9 e; \6 n
setxy random-xcor random-ycor/ r/ k7 J/ f9 m$ q
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] * P) E+ @1 _, E6 O. S c
Y! q; M7 q: p- N7 Q4 K2 I. x4 r9 _5 m5 z
set trade-record-current [] V: v, N+ B4 G S) ^2 N3 m5 Q8 @
set credibility-receive [], c5 `7 v4 s6 l5 q4 q
set local-reputation 0.5! t# v' W8 ^, O* W
set neighbor-total 0
5 x6 b" j. r" X) e5 q9 Dset trade-times-total 0* M8 f- N+ m' h& i
set trade-money-total 0
2 H0 A: c W& a* i/ P# \set customer nobody
9 h! Y/ V' ]3 gset credibility-all n-values people [creat-credibility]8 j4 `% \$ R( _# n
set credibility n-values people [-1]
; ?$ u w+ L0 Bget-color
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0 E1 p7 z9 E ?) i, jend
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' n- u7 L: d' B0 `to-report creat-credibility
9 L, t: B3 t4 b5 W9 W; T( kreport n-values people [0.5]# h5 T" }5 I& r+ k; B
end
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* {9 M$ T `- ^9 I, d2 Eto setup-plots5 {% B/ x" ]8 _1 ]! B8 O5 o
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set xmax 303 D& |% Q5 k- {- E2 h. X% \0 d0 F
+ C4 `. o+ ^# u1 |3 d
set ymax 1.0
, [2 l' Y+ @' M/ P
. Q( Q! K2 H- x: Mclear-all-plots
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, O! p! \ s( b# Hsetup-plot17 V8 N! [0 n& {, F* Z
" v0 a) b0 i2 ?: j4 z d4 Ssetup-plot2
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8 C1 W! X0 |) ~1 Qsetup-plot3
2 l2 J' K: {* j& U* J x. zend, p! S6 m" a6 \9 Z5 u
3 G/ H9 Z# _/ K: l/ C
;;run time procedures4 S. U- I% `6 e9 \( G1 N
7 s( r* h4 n& z' v% `/ F. Rto go
9 |; ]4 w' h; @4 W
; p& P9 ^/ m* j4 f9 s0 R# Kask turtles [do-business]
% t( f9 y$ K' o/ A: O5 S! lend4 K/ Q5 e" a% j l2 R. ?' ?# T
. F* W3 O: r" L7 ?to do-business " e2 w1 o( x' b- L6 ]3 ]
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/ |1 z( S2 T C: I) A1 {: Jrt random 360
. N S! Y2 ?% V8 S( B. R2 A' e
% q. K1 k, ?1 a& R1 ?( E" Ffd 1% j, E/ W- B$ J2 @% q
7 L$ e; z/ R6 T5 R0 H$ C( aifelse(other turtles-here != nobody)[. _" e$ R/ c6 c4 ^$ P
* n0 v# X) p' F6 j% I* Cset customer one-of other turtles-here8 ]' L8 A3 r& V
% a8 l0 x/ b$ j+ V+ T2 t2 ?# V, p% x/ x
;; set [customer] of customer myself9 o) R4 {1 y( x3 X- L/ ^2 S5 ~
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set [trade-record-one] of self item (([who] of customer) - 1)' s6 K' k1 I* W, ~) V) n- s/ h+ C# {% [
[trade-record-all]of self
8 ]$ `7 j$ d8 P, k, g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 Q8 x3 v# e% G8 v" ?- e
0 c7 A7 a5 _9 G3 E: sset [trade-record-one] of customer item (([who] of self) - 1)
+ s9 O d% o* J" p! \) f[trade-record-all]of customer
0 [* o9 ]; {# j# n# _1 f! h9 E! O$ T! f
set [trade-record-one-len] of self length [trade-record-one] of self/ d/ s0 P5 O( }0 T* Y6 p/ @3 Z
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set trade-record-current( list (timer) (random money-upper-limit))) c* n1 f1 @4 u ]" l
6 }% x& y: f, Aask self [do-trust]
5 L8 z& y) [7 x$ a/ S! m7 ^;;先求i对j的信任度+ j9 ?, i/ y( C8 D1 T3 q
u' _! d: h( U$ zif ([trust-ok] of self)' h$ a* d( E( Z/ Y
;;根据i对j的信任度来决定是否与j进行交易[' e3 B- A6 k3 _/ L
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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^; w8 T! p7 ^/ P* g. A) S" l2 J6 F( p
do-trade+ o& ?9 t+ J( Q( R4 G1 @5 ]5 M" B
) |% }, ` V% [, c3 Kupdate-credibility-ijl% N1 c' T7 N2 H% }/ d- z; n% a
/ E/ H2 G+ N7 G2 t \* cupdate-credibility-list
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6 u$ ~- E% v+ m/ l3 Q
update-global-reputation-list( s; e: n" w1 g( z0 @
0 U' K! L/ `' Q5 t/ @3 c7 j% C( X0 M3 Hpoll-class( x4 }# T% s+ Q w: Y* _8 L
9 M; }, i& Z1 `- X# s- z" B; I
get-color
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]]
$ _" N) g. {. `* G
* [' Z2 x3 j6 @' F* e;;如果所得的信任度满足条件,则进行交易) C. c* F1 `+ _& U" J+ C# F$ M
; x9 s' j& D3 i
[
( A U4 x1 d! P- S5 e; H% \$ g* G, B1 @1 d- w5 M, f
rt random 3605 a1 M( _$ D. m2 E2 {9 K
" @% e% n9 M. K( {" v* p/ Y) Efd 1' \6 g. x. i f9 l: w; a
7 ]4 y( Z/ U: \ U% a5 x) J7 i]+ j$ D& I' x+ @* E; g0 o8 F
8 V1 ^& c8 h! F% o" E8 mend
% r. `# K& I5 `) }8 F4 N" M
) m; m- u1 l) R tto do-trust ' C2 K/ y' |( V+ i! _
set trust-ok False0 k p6 r9 H" j0 H( i3 T# M7 [
) B Q2 G5 ?6 N1 B. ~* ?- R% Q8 U! `* L, r* R' o
let max-trade-times 0- @6 B: e3 d q7 a/ L, I7 O
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 a8 s2 I/ I# I" T' h
let max-trade-money 0
3 c1 f; B/ o0 Z5 ]( tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; G* R' y" ]6 b# R2 O( u$ Rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); t% T; M) U6 ^. t0 J* v
) H" C% C7 @) v$ r3 K R5 _
, d3 y! [5 I; m gget-global-proportion8 d3 r+ A T% A% i6 l! x
let trust-value
; X0 h+ ]" t/ {4 W5 Blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
/ g$ j* z% J1 f7 v0 [* uif(trust-value > trade-trust-value)2 l& y" ~$ }1 U$ `
[set trust-ok true]
* B, t' U1 V# ?" L7 a/ l6 ^end: m& c$ Y3 h6 s( [( O
6 m. m* K! U f: F. Bto get-global-proportion
' t( g+ F) X! O! U% D' A Bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 H+ V7 }) N) V( {0 e
[set global-proportion 0]. O' {8 [) ?: \, N. c3 u8 j
[let i 0) ~5 i0 k/ c8 k+ U
let sum-money 0& W+ N' k6 Y6 X9 E( K% N8 H: s
while[ i < people]
! m8 Q6 F# k( V y' |7 Y[5 g4 C6 B) B7 Z# a
if( length (item i: O- W4 L& O: } P& t2 T4 e
[trade-record-all] of customer) > 3 )# `0 Z+ u" I$ g
[
- a- }0 K. T! N* hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 x- o, w. \/ m7 @9 o]
: N6 J/ ]5 m, s0 `+ v& D+ Z( F& ?" S/ J2 z! n]
% n+ R1 }, q- y, G! ^+ alet j 0
8 T/ k' i t& n$ \6 olet note 0
3 v. ?/ Q1 l8 w. f! z' Ywhile[ j < people] Q3 I1 n O) \% p; B9 x
[ a* E4 @9 S$ o& E
if( length (item i# g+ S P. \5 o% i& j
[trade-record-all] of customer) > 3 )+ c7 @. E8 B# R2 f, V* u2 @
[3 M1 m9 @2 q) u8 d# u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. R. n0 H7 e( B+ G7 ?( c6 X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- [4 I3 Y5 R- ^5 f9 E[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
W4 R F8 ~' }6 E' f! r2 x]
& I, V; w7 K- n; _' ^]
# b" u2 A {! q; ^) Uset global-proportion note
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end
" Y s7 ^9 h' \ ?, r5 M' d0 Q9 i8 o8 J* P, H6 Q$ F9 _
to do-trade. B7 Q! a% c4 M# G0 F7 I
;;这个过程实际上是给双方作出评价的过程
# p% r1 J7 r( D8 Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& l( u1 a5 h7 f X" E$ X8 aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ p! _/ ]) U5 p* `2 @2 E9 Vset trade-record-current lput(timer) trade-record-current! j6 ^" U7 |0 ?2 V6 z e% @ p
;;评价时间( a8 w( n: N6 G3 P+ z
ask myself [, X) u1 L! Y6 W D/ d7 s5 F
update-local-reputation
( P' E ~9 X; dset trade-record-current lput([local-reputation] of myself) trade-record-current5 X4 Q! X) A5 x6 p+ V4 C2 q- d0 Z. Z4 B
]
- a0 ]7 z8 u! rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# F/ q2 V7 ~! i! B
;;将此次交易的记录加入到trade-record-one中
4 C: [- m" ?1 ~' xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: V' }, g2 f! m0 B" X5 ~& @let note (item 2 trade-record-current )
, S- K) f/ {3 uset trade-record-current
1 V# [! D1 M2 v; s3 \5 P: \(replace-item 2 trade-record-current (item 3 trade-record-current))9 T @" [1 w2 {( B) d
set trade-record-current
9 } a! @6 p x7 u(replace-item 3 trade-record-current note)2 O) G& m+ ~3 g- k
. t- e. m) Y. e6 ]* U/ i3 q3 W9 Z1 f) a8 Y" n2 x% D t
ask customer [
/ Z7 q# V3 n9 fupdate-local-reputation9 K4 a- y, y3 D. j3 M& r0 Z
set trade-record-current3 t1 a0 O1 F! j: b& u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 G$ Z0 M" d* o]
6 M5 B2 ?# t+ S: j r) r% q, o% U5 X3 F3 Q- [2 W' b
: S6 L$ g- A; ~3 d2 m- P' T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). i) j% j3 f# m/ r
;;将此次交易的记录加入到customer的trade-record-all中
0 U" M [' i. D8 iend% }& g) v9 e7 c# |$ [2 t+ K
: a7 ^! K6 }5 rto update-local-reputation! d/ `+ x7 {* o9 ~; h1 e* g
set [trade-record-one-len] of myself length [trade-record-one] of myself4 P- q* p% H$ ?& v: L) l
3 V t k5 C1 U# o' V$ \" `4 l
E9 z: u* N) a;;if [trade-record-one-len] of myself > 3
& D' E" k9 L& m1 N ^update-neighbor-total
: x- Q1 I* s! }5 v5 m2 R/ B;;更新邻居节点的数目,在此进行4 q! G; j/ V' D8 e* |1 Y& _: Y
let i 36 `# f9 g" k5 \" O; F
let sum-time 0
1 _4 q. e" V- d: Vwhile[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 g" j6 _' a( d) J8 ~9 }: X" m
set i
' B, \) I# p+ U3 \( i + 1)# H1 B* {; a6 W8 P3 o
]
& O/ U4 |! G7 g# {( O7 ^3 T4 Ylet j 3* g( e, w8 Y3 I3 z! W$ _. [: w
let sum-money 0
' @- S) |5 _; cwhile[j < [trade-record-one-len] of myself]
* d9 u4 [! y, G% H; m[
5 @9 w; y; A% S8 _3 |6 A. Iset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time), k) m: F( h& ?$ W8 |. M
set j
* c3 y, Q6 s; i( j + 1)
; u0 _" U$ I4 w$ r9 }]
+ k6 F# ^' \. H6 |let k 3+ e7 {8 X* H3 @$ G) \
let power 0% e. z: k; w0 e+ |
let local 0
/ e7 U7 H m: zwhile [k <[trade-record-one-len] of myself]& b- s( F& l1 T! r% f. n
[
, F0 ?5 d g$ `* `9 [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)
! t3 M" Y7 O- ^( J+ xset k (k + 1), j- H1 j. L" M/ ?9 J6 `/ R1 _$ s$ g
]
& @5 F7 _# p3 \' O( `# rset [local-reputation] of myself (local)$ |) r8 D$ `% T: i
end
5 o% R. d) z9 u& f
j, j3 ]8 v1 j1 }5 mto update-neighbor-total
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: ^7 j+ U4 Y$ p( bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 v0 y2 C# Z* c) W3 L; h4 R" U
- D# ?4 i7 @* C5 k5 b% z9 M0 f( a) X) z) y- _2 T# O$ d- n
end
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to update-credibility-ijl . N9 s$ l6 _6 F0 C
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;;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 S- g# H# I& b3 L4 @( h
let l 0/ V1 v( J" g6 |$ j3 s
while[ l < people ]! S) V3 k w/ Q5 B
;;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- C2 }* ?# Y2 ~* z, @+ Z
[& J ]. I* U& M( C4 p& ~
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 v# ?! f! b7 q+ e
if (trade-record-one-j-l-len > 3), ~$ [; F" q% k. k# B. Y! o& F
[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-one4 ]- M, r% v! c" ]( E: @
let i 3
# L- j0 `( ^( ~let sum-time 06 ] t; f" x1 W" l
while[i < trade-record-one-len]. H" x: I) t9 R* H* T( p% R$ y
[, Z: S- d9 b3 C f7 `9 ^; E. t
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) ]& T* y. z3 l2 O J) t
set i
# M L% w7 d0 ^; W( Z/ w7 M6 Z( i + 1)
- ?; x c4 S; n! t4 n; ?1 ]0 s]$ M8 l( l4 p5 `% Z
let credibility-i-j-l 0
+ s7 z( i) W% O7 `& y; T7 }3 U;;i评价(j对jl的评价)5 d/ S5 X- Q1 S% ?8 A
let j 3
4 L C" r2 T. M( O glet k 4' [0 @' }; M3 ^" D4 Q0 W& a$ K1 n7 P
while[j < trade-record-one-len]" d" u+ ?, K% h6 v5 y _( J5 o% S
[* T) U) U L& m9 J9 X4 R4 a
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/ [. ~9 e% G. d/ h
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)
2 Y, z& ^/ P& ]1 _/ Cset j
, E2 ~" m& r. \& c6 b& G( j + 1)+ _6 h: ?8 F$ a9 O: ~
]
0 e7 C% d& h: j# t: D2 N9 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 ))
1 x# x6 l( o+ B6 q5 s; r* c- a0 F* \* l, d- n1 P. C& [
j2 Z# @' z9 e6 _0 U5 mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ u% ?' f# c$ a" P) H9 w: Y, S
;;及时更新i对l的评价质量的评价
6 z/ n0 O# q& [4 B- p& e2 f% T- fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( F$ g' l e" [7 G3 `" oset l (l + 1)+ l0 V7 {; I- V9 k8 G" |
]$ ~$ M: N7 @! @
end( y& G; C1 u$ S8 M0 q
3 `' U9 w' L& \: ?7 G, k$ w# ito update-credibility-list! J0 d( S/ Y! ], S* o B1 s) s1 X
let i 0
5 z y" _5 k { B5 y. swhile[i < people]
% d Y% t6 Y0 j6 ]7 `8 R[
* K, s! Q7 K5 {* e! Flet j 0
: ?4 Y" Z% }8 H8 Y3 @( e" {let note 0) M+ k* U# k5 W! Y7 ?3 D
let k 09 I) \/ B# Q- C+ V
;;计作出过评价的邻居节点的数目3 [% V/ t. N. M D2 J0 J; `
while[j < people]$ c3 C0 [" S; q1 n! e
[
( U; k- L3 p, B& ^9 |if (item j( [credibility] of turtle (i + 1)) != -1). {/ w% [2 A0 b3 @
;;判断是否给本turtle的评价质量做出过评价的节点
% R: G; ^, E" e) h# R, c" P/ J/ U, {[set note (note + item j ([credibility]of turtle (i + 1)))
: y6 H$ t. L# f4 @/ n* B;;*(exp (-(people - 2)))/(people - 2))]
# Q: y9 M/ d* b$ Z$ I5 Kset k (k + 1)
9 t- ]9 P1 Q w) X* {' v]6 R$ S9 Q+ p, \" e5 @: J
set j (j + 1)
9 I9 S/ ^) [2 N) [) R! T9 U1 Y]' e& U6 [! j" X
set note (note *(exp (- (1 / k)))/ k)/ j! a' g* _6 c1 k! B5 w0 `3 q
set credibility-list (replace-item i credibility-list note)
& t! F" X0 A& [5 ^" yset i (i + 1)
7 v7 z# z7 E9 y( R" p]* R, t" `5 X$ d" O
end% f' k. i' Q8 ?6 D% d* T* [, f4 ~! S
) ^+ ?; g, D+ p, `to update-global-reputation-list
i. t1 {; s4 olet j 00 p, a5 n _# ?
while[j < people]8 }' I2 @6 v |% `
[
1 m( }5 o) I6 e* I6 {3 Nlet new 0$ f; \0 G9 u7 }1 s
;;暂存新的一个全局声誉* R+ e: A! i0 K8 A6 V% {2 \
let i 0
; q5 V% A: z9 | Rlet sum-money 0
- K: s) Z6 ?) \7 blet credibility-money 0
; M- C3 M8 r: dwhile [i < people]
9 ]4 P' f& j. ?3 s' V# Q; N* ?[
1 I' K' s# ?. x* Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* q" Z6 U9 C6 Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; P" [7 j+ ?2 J; _- n/ R0 ?* |set i (i + 1)( Q& \. o0 y# v* M' t7 m$ ]% S
]* Z- [) b. v3 l, W! P# \
let k 09 a9 M6 {) T" _0 n
let new1 0
2 M6 O) U2 v! }' t5 J! H* jwhile [k < people]
, z$ H9 q2 ^& v! P1 c: @[$ |* u0 S, j8 J, d$ b4 Z0 I- 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 D0 Q; \& j7 D) `9 E. b4 {set k (k + 1)5 q* L9 l! O+ f/ g# X1 R$ t
]
9 Q4 j7 A0 D$ A% fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* e8 O5 G0 u: yset global-reputation-list (replace-item j global-reputation-list new)
% I6 K5 V8 }: U( M2 b. ~8 t1 y5 Zset j (j + 1)# s9 p$ O, e6 L% A! d7 _) f
]) W; ?4 {' n/ T4 A" k% W
end
3 U5 {4 ` }! o- J9 @+ W: U# z5 }7 F/ |4 p; Y j1 \, {
7 l' s% l2 M- ?4 |7 y' Q: i7 u) n
T9 o/ O9 |$ T8 w2 C! p2 Jto get-color1 C6 L# @: y$ F [7 l' V
' ~1 W- e8 l M& ~, U+ a/ D
set color blue; [' p; L0 @9 H
end& q% X7 c! w2 \+ l3 U
- g" s# B, ~9 V( v3 A
to poll-class
0 s3 J* W+ M- _8 Q! nend
5 k8 i$ A$ Z8 ]; G v
* y3 J t- m2 ` i! fto setup-plot1) t8 Z/ \8 Q! W7 E7 G
, N N4 |# B+ C3 D0 [
set-current-plot "Trends-of-Local-reputation"
; k$ X, d x( z' z& v) E2 v2 c; M( e3 F
set-plot-x-range 0 xmax
/ G& w" M1 A* |* X: e/ |
0 l, l' j7 n; {9 w9 T3 k3 L! p7 rset-plot-y-range 0.0 ymax
( X# Z9 r) r/ m1 R0 `end8 C5 ]% `" F7 `% ~$ j# a* u& r
& J, g+ U2 F! b% d( E, f
to setup-plot2, `. n) Q" u" f, k1 R1 c
1 G* |6 N+ r( h7 g: \9 H, g9 ^) pset-current-plot "Trends-of-global-reputation"
/ I# U$ G$ m- h) s' f, D
% s; `# }# j4 U& Fset-plot-x-range 0 xmax+ B. j$ h" Z, t5 ^
/ [1 r9 \' \4 g! X
set-plot-y-range 0.0 ymax# H E8 n, X/ g9 A8 D
end
' S! x9 @/ [" [% H/ O& H \9 B) J8 C( l' m C
to setup-plot35 n0 v3 Q) @' j) \' e. x
2 h8 f( T' ]& |- o! c
set-current-plot "Trends-of-credibility"/ [7 \! e: D$ t
: E* R7 d8 a6 q5 j4 ?/ }+ Nset-plot-x-range 0 xmax. Z! M) ?: m9 P0 [
/ s2 D6 w7 f) Z* E, R T
set-plot-y-range 0.0 ymax+ R0 e- Y" u& z. F' x- j4 `
end& a8 `/ S3 B" D, T$ w$ o# M
7 q$ b7 _$ [4 X; d$ P3 E6 i; @to do-plots
/ e- b9 F6 F) v6 I W8 Hset-current-plot "Trends-of-Local-reputation"
# P1 z; {, a% s0 H: P9 F Iset-current-plot-pen "Honest service"# {/ e6 o8 w. f. p" s% ~
end. ]% }5 ^! Q6 i0 }
" F5 o* [1 I, g7 T6 K5 |; E[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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