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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
+ J+ i3 j0 ~$ Y- f6 Q1 @8 bglobals[
: @0 o5 S/ K. \* j& v3 \: Oxmax
& l( @% l- N. y/ Gymax
5 p$ x r8 v( j+ R1 ^7 \) Bglobal-reputation-list" _/ }+ l2 P+ j) U- t$ Z, C
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;;每一个turtle的全局声誉都存在此LIST中3 i# U# v# |" |* A+ |
credibility-list, z, A3 e' ]5 P+ Z) l+ U W' ^- h
;;每一个turtle的评价可信度
% L8 v+ l# M0 i0 l1 xhonest-service
- ]' |. ]( J2 t! i% `/ Eunhonest-service4 H& Z/ k2 k$ ^3 @
oscillation" ^8 }( O' U9 @7 s8 ^0 S- c
rand-dynamic! ?! p# H9 {( j4 T4 h/ q
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6 V, ~7 t u& {( Z3 W+ gturtles-own[+ ?& C4 H) l+ K
trade-record-all
6 c/ S I1 \) q7 ^. r8 y;;a list of lists,由trade-record-one组成( r) e$ c, p4 s
trade-record-one
" l3 r, K+ P6 w) v;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录2 s; n3 p0 x& h3 e" l) j5 X( [3 {
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;;[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]]
+ A; A% P7 j3 N1 Wtrade-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]6 F( x q) d+ J' l6 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list
4 h, u! s T4 s5 x# W8 Q; ~neighbor-total
3 \( I3 L) ~8 K' O& _4 T;;记录该turtle的邻居节点的数目/ [# K% M& j' t- E8 M; e
trade-time
2 r% N; {$ |2 E! a3 {* |;;当前发生交易的turtle的交易时间; L. E) d) u* Q& A/ w& g
appraise-give! u) l6 s& Y/ D" K
;;当前发生交易时给出的评价# j6 W; J' s5 O9 g
appraise-receive c2 w- N: m: o) S) e6 ]% \
;;当前发生交易时收到的评价9 b0 ?1 V4 g3 z* _7 L y b
appraise-time
$ }6 y Y; Y# N! S. H;;当前发生交易时的评价时间1 k5 }) g* X# a8 g- t( _+ }2 [
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' T0 ]9 `, d9 m8 K2 K3 q
trade-times-total/ l% c0 A1 H$ s* k4 L- H5 a0 \3 t0 k
;;与当前turtle的交易总次数
7 _; b& c1 T0 D1 q& ttrade-money-total
3 r0 s. {+ ~- G; C;;与当前turtle的交易总金额! i. q$ f# ]2 f* z) s$ |4 Q; C9 `! }. q
local-reputation9 E) a, |& {# W8 P$ f Y, x, A) O
global-reputation
: I" h6 r& \, m. Z* d! _credibility E) C, D( E4 f8 Z7 D9 Q
;;评价可信度,每次交易后都需要更新
: ?# d/ T( p9 ]% c( \6 K; k. j* Qcredibility-all
! T! T9 F6 E+ W9 ] F1 K5 Z;;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0.51 p( f- F* \& a6 c: `
credibility-one
4 S: j. k3 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
3 M7 O/ r1 ?3 n8 C q0 b6 Y6 Bglobal-proportion: |" \" D1 U" G& i$ @
customer# r4 }% |1 D4 G; Y( R6 q
customer-no
& t" [+ H; r- J+ Y! I8 d. L+ Ytrust-ok
% |: r& e8 K5 m% F4 itrade-record-one-len;;trade-record-one的长度
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. q: x U6 H9 z2 q" c @;;setup procedure% `" Q2 w1 w" H; Y1 L' A% o
+ l7 Y6 [! ^+ b! w, t( r5 k; H j. Uto setup% \* v/ D+ P8 Y* J9 H# s$ B' D. O
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ca: ]. {! t- o- H
6 R; f% Y; L2 ^5 d; r3 Binitialize-settings
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4 R# C: L; h- c) s: f$ F# o0 F8 acrt people [setup-turtles]
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, S+ m/ D* B9 M7 b7 t8 |reset-timer
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1 k* g& X% j. y# Z/ C% \$ _! _poll-class
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setup-plots: A. o' @2 V- h Z! @+ N
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do-plots
& R: g) P2 q5 P( @- V3 Send
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- F: u, a5 L0 s) g5 eto initialize-settings
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5 C: V7 x& Y# W0 l( I' Wset global-reputation-list []5 D# e/ Z7 I; e7 V" K1 W/ H
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set credibility-list n-values people [0.5]% {; D2 }4 ]$ A6 U- F# K/ T* H
5 B4 w# M8 }9 ]9 O- c
set honest-service 0- x8 x( x2 h2 h: H w6 W3 Q' h7 a
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set unhonest-service 0# c: [$ t' {! k$ p9 W$ f! T
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set oscillation 0
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' A* y& g! a( G% H2 gset rand-dynamic 0; p) J7 Z s2 U& w3 x* G
end
@" K% b I# }, v
4 P! D& o5 K* oto setup-turtles 3 g3 V5 ~! I+ P) D6 G
set shape "person"
' e' y" n6 a _setxy random-xcor random-ycor
) x# b5 A2 f: f& b8 A! e* {set trade-record-one []1 Z" n* O' h+ ~& O
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set trade-record-all n-values people [(list (? + 1) 0 0)] ( c1 ?! ]3 k, O
) F) z6 H. A% j
set trade-record-current []
F: A( @. R; ?- d1 ]* lset credibility-receive []; [, D& @/ l, z7 ~( d
set local-reputation 0.5
+ @5 ~, T( A7 c& B: v! pset neighbor-total 0- T+ ?& r* |; a/ q6 F- b3 Z( g
set trade-times-total 0
" K7 i9 z. B( |: D. cset trade-money-total 03 k( J+ ^0 y6 f* P1 V* m
set customer nobody ?+ t5 M7 K6 C$ p/ O
set credibility-all n-values people [creat-credibility], H- Z$ d# H; m$ }; C; x/ Y" M
set credibility n-values people [-1]
) [% i& k$ U. y3 ~8 K4 w& Y& Aget-color
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( d6 c( M6 s- a& L/ o6 G8 Qend" I: k& f* h( e$ C
3 M3 U, M' Y8 _5 V
to-report creat-credibility
8 U# y( C' ]* r7 B! D7 Freport n-values people [0.5]
' O9 d8 S" D9 o% @# u3 j7 [end5 ^. G+ |4 W0 _% s
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to setup-plots( E5 F2 z8 G; N7 E
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set xmax 30
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set ymax 1.0
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9 e& A* \* t7 p3 v9 u# ^clear-all-plots
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setup-plot1) `. F( G0 ^. o$ [
; h0 Y9 k ^9 ~- dsetup-plot2# j- \; z6 n/ ?5 |; }! _
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setup-plot3) ]# j# ^9 N7 H* F6 H3 N. L1 E5 ^
end# I+ T# \0 ^$ Q" r3 s
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;;run time procedures
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3 ?, d7 _& |7 }2 M! {to go; R* p- e* j% {) G
) x9 C, x& R% m% s- Iask turtles [do-business]
- c0 ~- W: d! ~4 p8 g: C4 q0 ]% Aend
4 z7 h4 b' @0 {1 I$ s
+ M, {, y" Z1 `3 u) Q% e8 Xto do-business
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/ b- E3 ^. c0 V! Q4 [rt random 360" I( z$ r) g4 g6 |) N% v$ m) H
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fd 1
c H8 ]- ^) p
% \" Q" b! f- v) Y; Sifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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! \4 S" U# R) Y1 |5 Lset [trade-record-one] of self item (([who] of customer) - 1)0 S* m/ ]* I' M" d3 V
[trade-record-all]of self! z+ X" W5 D+ m
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; B9 O8 B' \7 _6 [1 J: J
0 V8 S! o. c% [- `$ Vset [trade-record-one] of customer item (([who] of self) - 1)
! w3 q9 q! z+ Z# Q8 L% P8 z[trade-record-all]of customer
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7 b0 {. C7 O+ ~, d3 W* Vset [trade-record-one-len] of self length [trade-record-one] of self
' U; D0 @# ?) g/ \
1 ~9 i6 `1 }9 oset trade-record-current( list (timer) (random money-upper-limit)) G6 h7 y) O( T; q, |* g
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ask self [do-trust]
: \8 [. J! G+ k: A+ Z/ ];;先求i对j的信任度
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if ([trust-ok] of self)$ l8 K$ Z; m5 [4 P1 @6 \" o0 S
;;根据i对j的信任度来决定是否与j进行交易[- _) g# Z9 ~: i- H8 C
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[' w4 j' Q0 S$ A6 ?6 h6 j, p
! y# M9 e! Y* pdo-trade
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update-credibility-ijl
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update-credibility-list7 C& b( P; l! n% T8 f' Y! B% S
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update-global-reputation-list/ d& _: k( K+ T* H. w4 X4 |4 A" k
! p4 f- S% y$ B: Hpoll-class
|' V7 \- f6 W8 p2 r9 D, _; ~" D$ }2 d% x! r. \9 ]& b' H: m( f C
get-color
0 P* U3 P& j( F& S; O/ _- z; a( [
]]
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;;如果所得的信任度满足条件,则进行交易
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[
* ]$ s2 X0 h3 V# E; C/ D) x7 \) B0 q0 b t8 H6 W. e
rt random 360
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4 O5 O& j; Q( v/ O7 [! n9 Ifd 1/ I9 e3 X7 ~- Z3 I$ W
& O( O" E8 U" O( a, v( V. g4 V3 v
]
/ V% T4 H/ i8 W; a+ D* B% f; B9 d+ i" K
end
# c" b2 B( ]' Q% o; r+ _) ]( o# Q/ N
1 q3 m* T* v7 o! Y% l7 K' sto do-trust
- E! e- I* \% ^9 G+ @7 }* kset trust-ok False
9 C1 y) l$ c( W. h0 H" k
8 t* y' v+ A5 \- c- l2 z2 _
6 u- s8 Q, P @) M' clet max-trade-times 0
+ O9 R2 c4 R4 ^2 [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" R" C' |4 N0 u2 a6 @let max-trade-money 0+ o5 h1 a/ B1 z% @6 `( D# |- d/ Y4 l
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! m7 i" F$ ` a+ M. h3 {' k
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 r# j2 c6 ?; ?) a R; n' B8 A' ?1 z, {' n
# Z p3 c9 S' ?7 a$ Lget-global-proportion
7 Y+ |, G+ _. _$ e' ?" Mlet trust-value3 [; L7 W& {- {2 j% P3 @* H
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)7 R. }" V: ? Q
if(trust-value > trade-trust-value)( i8 d% h# w/ \/ G! y, ?; {
[set trust-ok true]/ P9 n$ R, Q7 x- A
end
6 k. e* n6 S3 r b" V2 K7 {) J9 x/ h/ L1 I& C% e: m
to get-global-proportion
0 M' M$ @8 Z, xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ u4 _# O- i+ ~
[set global-proportion 0]
8 }% k i% U2 e4 M/ d) @7 k[let i 04 F" H7 s, S2 u4 W
let sum-money 0
9 v, Z" K# M a7 {; N# ^6 D, @8 Rwhile[ i < people]3 f# z5 o }- u, V
[0 a# i9 r" S( `: W1 l @# J5 H
if( length (item i1 |, S# r$ @/ `' f% I% b
[trade-record-all] of customer) > 3 )
5 W4 |+ \) _! z. J[) ?* {! }; W4 e5 b0 V; I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% X$ f5 A0 M8 a8 X8 V5 y# U]
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: ^& w: y& d: e5 p3 klet j 0
9 T2 y1 H$ X n$ p9 a# \) N0 \let note 0: _* b1 w+ Y( ?
while[ j < people]
' j* w8 |% S: k @8 y* a[6 ?( @9 P0 {. H# Q l3 N5 ~
if( length (item i3 x% n n4 J4 l& M9 k" ]
[trade-record-all] of customer) > 3 )
" x3 ^" f3 ^, y; O[
8 N9 S$ K0 V. P9 B* lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- S W9 C$ C8 n# A9 Q* r$ J5 d a
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, i9 t, C1 h" O' a' Y+ N1 G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) S( V# o5 {% E1 ~1 }+ ?" d; ^. Y
]' i, k% U- @3 O4 f# l; s
]% e" }4 x2 n$ b; u) r5 S; U
set global-proportion note
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! z* C. @; K* U8 `7 |8 d/ bend
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to do-trade
& b& A5 j; v9 L# f;;这个过程实际上是给双方作出评价的过程
) s/ S( H. _8 x% C2 r5 m( Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; K3 M9 B8 l- r2 j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- U; T1 J1 ]& J) I3 y `( Kset trade-record-current lput(timer) trade-record-current
2 k; A6 I; q; |& k;;评价时间, H/ \- n1 |% ^; V9 C& M/ |% d
ask myself [4 B# c$ g% W3 `9 r2 }
update-local-reputation0 a* w* W0 E. W1 @5 T% s! C+ b
set trade-record-current lput([local-reputation] of myself) trade-record-current
" h* w# [7 E+ ^3 R) j]. |+ h' v% B$ w( j8 O* G
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: H0 `4 G2 S( o# S3 e* T
;;将此次交易的记录加入到trade-record-one中
$ V8 I+ H' e _/ T: N' Vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ N0 Y) L3 p( E: R
let note (item 2 trade-record-current )
: ^( S2 i7 a# {0 mset trade-record-current2 f/ r" R( m3 Q" s! F! v
(replace-item 2 trade-record-current (item 3 trade-record-current))
: S8 `; l% ^# J. V \5 `7 Hset trade-record-current" n0 H/ B. |0 ~8 m
(replace-item 3 trade-record-current note)/ ^# M6 h2 T! R) w) |/ S" Z; C
# l1 \1 o7 M) R
1 h ~* c5 P* D/ b9 v# K% }3 xask customer [
8 f2 j1 i+ j/ o' h( Kupdate-local-reputation
! [$ D7 F! S. h; S7 dset trade-record-current
, x- e: @, L1 Z( j$ x- m(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 e6 ~- y6 K2 z3 [: l7 m/ x
]
& |5 i! w- G2 [1 l- n2 f7 ?. t/ K- t1 a
]9 ]' w' C0 `( H1 P" g3 Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* R' N- T2 x) g4 D" a( y/ H s
0 \% g* n: E" A( Q+ K+ f ]' k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- S# v; U( l2 |2 @; S1 @
;;将此次交易的记录加入到customer的trade-record-all中
9 w) p3 D3 y+ f+ D4 ]% ?end" p( m# g& @: Q* u9 ]1 q
4 T- w9 @1 ?$ A$ _9 g8 ato update-local-reputation
1 v: q8 F$ p( K2 eset [trade-record-one-len] of myself length [trade-record-one] of myself
" L- f4 k$ l+ f) E2 Q% C* |4 _+ u/ T
: x+ u6 Y" N; E0 d% B y) r;;if [trade-record-one-len] of myself > 3 ! \2 W; w* Q, L. B1 F. A
update-neighbor-total4 G6 W% e$ x+ T& @
;;更新邻居节点的数目,在此进行7 t, }; D& b( D- h7 h/ _2 @2 G
let i 3& ~0 }$ X7 ?+ R; ?3 k7 Y
let sum-time 0
8 D) A0 F/ d, i" e: F- r0 bwhile[i < [trade-record-one-len] of myself]
* O' F" O E- [. ^2 ][- S3 @2 b p+ l! g. m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ g' B7 B' p- O5 {! A
set i
& D9 H& T1 d1 f2 B2 y) E4 _( i + 1)/ P( T" u- L( u4 k4 o
]6 c3 B; s' l8 F, ]' n( ?3 ~+ I
let j 3
0 y5 }% m& S8 A. N* ?: R4 Xlet sum-money 0) `% V. S6 S/ \( v$ B- l8 r
while[j < [trade-record-one-len] of myself]
) a+ _( N7 L* C0 q' w% e1 o[
+ q' m, H" Z; d) l9 G2 Q8 l1 e* eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
1 v+ ]( `& t3 ]3 u7 Bset j7 _2 k: N5 H4 W$ c" M7 j
( j + 1)
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$ \" [2 v, r1 ]3 ?6 Alet k 3
8 Y- B W! K/ D* k8 h1 ~2 Mlet power 03 q7 f& t2 f4 O. W5 N) ~
let local 04 Q; ?' a/ G% B- o5 L. x
while [k <[trade-record-one-len] of myself]: y4 |1 [4 f' @2 ~
[
4 B+ `+ s. @8 v) n9 v8 xset local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) 1 o j! Y# {% \2 c- z# C0 s0 D3 X
set k (k + 1)# x0 Z9 h- G' X$ k
]
4 w6 {7 r% P- jset [local-reputation] of myself (local)$ r1 d0 l: x8 f( b; ^& f- N$ Q
end
; l# W8 }0 k4 }" a5 [
5 F3 A z2 N0 W8 d# h2 p& gto update-neighbor-total I( a& u5 n4 s0 z) O9 V/ H0 ]" J9 ^ m
" k4 s" `* V2 V7 o1 `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 p, W. U& ` j5 a; b
+ D7 J( n4 h/ ~3 j- w
! d3 h7 X0 `- B* Tend
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" S* \) C/ o. ~8 k% D% m2 B% r$ D Zto update-credibility-ijl
6 Q k& m5 `! \# N; Q& l |8 O$ S0 A7 d7 d3 H) l
;;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。
& E7 W- h3 A* h: mlet l 0( W$ \# U; I5 r- d
while[ l < people ]
( _% s4 N, j/ f$ z9 b U: d- t;;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
4 ^# b; d2 m7 T! Z; ][! Z' P! \+ N r/ V
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% E) A( T3 }3 O4 D4 r3 Mif (trade-record-one-j-l-len > 3)
3 K* Y c" J) c; V$ F9 l. [[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+ U3 p. ]3 M$ O0 Z& }
let i 3
) K6 m8 c. i3 s) J7 A# i! olet sum-time 0
& @9 x; X+ S+ M9 lwhile[i < trade-record-one-len]
1 ^1 l! o- [2 k- h9 [% r- ~! |[
% u' D+ d" m" V4 g, g' Rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ @" e) N7 ~; O* oset i* g+ y, b d9 Y0 t n$ Y" N: L& k
( i + 1)& w; l& S* U" _, s H4 ?
]
5 V \8 }1 ?0 Y, k, Zlet credibility-i-j-l 0% ?6 Q7 i7 S( ~' K* j! a9 q
;;i评价(j对jl的评价)( f) |3 f2 P. D2 {6 t0 V B; x" n
let j 3
0 H5 Z9 y7 P! J0 W+ Z7 Ulet k 42 A: B3 K7 @. s' w
while[j < trade-record-one-len]
6 b9 R( v4 G! \6 T6 S& V( R[
' r3 @$ d$ k- D2 L3 A2 jwhile [((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 r3 i9 \* J( |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)
; H4 e6 R: A$ k- Kset j
K$ K' e- S$ C* c3 q# L% B( j + 1)
$ q$ B# l% D- p3 O]6 `2 J; M* W) v
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 ))1 y8 G7 m% Q/ y/ A4 h2 ~" d! A
1 B; e- k- q8 U" |5 c
# x ^. w: `. ?& r/ V& d
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' s6 G" I2 D- l: V" M: U/ S0 ?;;及时更新i对l的评价质量的评价2 C4 ?7 s8 k5 l' n; V4 g: K. k/ V b
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 Z) v. l: b J8 U0 v3 Iset l (l + 1)
- F) V1 G9 J+ A2 H7 r' `]
6 a+ |' H: l! K, iend
# Q5 J/ N( ]+ S$ ~) s6 I
5 l7 z' \, S1 O2 wto update-credibility-list
: \, }3 N+ d+ D4 X7 ylet i 08 U' N3 Y9 N: z( u. S6 Q
while[i < people]
; u B9 z. w/ W, @( q% C[9 a8 Y* Z) u( L+ A9 v/ g8 {
let j 0- U8 M& ~ v) P) b, h( V
let note 0% x! l g& t, q/ t. X3 O0 t
let k 0& R3 d% _* V8 s E- }3 _2 z* t
;;计作出过评价的邻居节点的数目
! S" z3 V; d% m% Y6 Kwhile[j < people]9 K# z2 ^" n) l" S2 ~7 r& _
[1 l* q. ^3 M; h$ C6 h4 O, z
if (item j( [credibility] of turtle (i + 1)) != -1)' G+ z- C e- _* D
;;判断是否给本turtle的评价质量做出过评价的节点8 ?2 H, u" o% M7 F% ^
[set note (note + item j ([credibility]of turtle (i + 1)))
2 z: k- E9 I9 V" }* [7 t o" m;;*(exp (-(people - 2)))/(people - 2))]
* m; {) ^! e7 W( b: h5 [* W" Y( `set k (k + 1)( m5 T9 Q, y: D5 I8 ]4 a
]' @8 u: `+ j, P
set j (j + 1)% C0 S. K/ q7 i% m" }8 L4 z
]
9 w% c# i7 W- O# Lset note (note *(exp (- (1 / k)))/ k)' m, j2 p) ]% m/ g4 G
set credibility-list (replace-item i credibility-list note). @ h; Y7 m- t
set i (i + 1)
" p6 X2 h+ b9 r8 @]
& K. M% V1 ~9 v3 p* Xend0 ?7 A! N4 P2 R5 F3 h
" Z7 n# \0 A7 p& t! s7 vto update-global-reputation-list: T2 N- }" U" r5 A) E
let j 0
& {7 j' P& b; g; x+ \0 ~) ]while[j < people]# r4 J& x/ i) J9 z, W' U
[
$ o6 `4 z7 e+ flet new 0& s1 ^- m+ K% J7 @' ?
;;暂存新的一个全局声誉- }& Y) H& J& y! @1 Q: [
let i 00 A* W# x6 y$ m7 f' u
let sum-money 0
) H5 V, z4 ?3 ]/ Wlet credibility-money 0) T0 ?+ z1 O9 E1 k
while [i < people]
4 r8 c( b5 T& a1 i; G[5 o7 l1 ^! i+ c& P B6 j, U
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' }! P7 s4 B3 v; Y* uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- e; ~& h; P% L9 n# a+ _6 ^
set i (i + 1)/ Z W7 v5 g6 s. d
]0 _/ k# I" {, l/ M; h9 T
let k 0
9 }# f+ j$ j: \; W/ flet new1 0
U' `/ b2 a0 ^3 ]while [k < people]
/ o" x/ G6 x7 c" V+ c, c[: b0 v/ I4 }3 Q
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)% T/ A# g6 F* O! n
set k (k + 1)
) Z5 ]) x. [* t( Y( g8 x# y7 S/ G]
; D* G2 k; r7 ]. | D. S* ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' ~/ r$ z# N' u; @; e1 e
set global-reputation-list (replace-item j global-reputation-list new)& R6 A0 g! E3 L
set j (j + 1)
6 B/ ?! X( T0 K1 A& q]
, c4 v; c9 q' {end% k/ f2 G+ }6 J$ J2 l. b4 q
; ^+ k- _+ S2 \3 [) U0 Z: M; T! O/ T8 _
5 X3 m5 x- O5 `' A+ c
to get-color
3 z0 R/ y+ _# l9 \$ x% U1 P; I* m! [* z- {. V" t! E5 q
set color blue
' [& t* C1 U; l6 @; lend6 a7 o q, p. H+ W: e& I$ N
# Q+ \- z$ `8 o# M" D: c- W n" s5 {
to poll-class e: p. z! O9 Z
end1 {, s* [2 v+ H% G* b4 z$ |
+ Y. R: b% g5 `7 n
to setup-plot1
, x' s0 x5 Y1 m j" X0 Z
$ l+ l- j8 R% {" ]set-current-plot "Trends-of-Local-reputation"4 u& J6 v7 r: Z
* b; J" c8 M% ^* @4 Rset-plot-x-range 0 xmax1 ^( E5 y: V2 e/ X, y; @; d
3 x# p9 \& u: ~" Yset-plot-y-range 0.0 ymax, ]5 O2 x6 A7 w; E9 _# R/ b" e
end
" u9 @2 i3 T7 b/ `0 H3 g$ ~/ }2 `& K; J, p8 E* ^: W
to setup-plot23 f+ h# I+ J% g3 ]. D
7 z* W' K' a. G& }( L7 @set-current-plot "Trends-of-global-reputation"
& {3 ^# B# G4 A% K! Q$ _* ]$ S
: V" Y0 _5 A2 c6 d+ q+ Dset-plot-x-range 0 xmax
8 f8 s% L( {! d) i6 Z& {3 L, d4 S4 v- o- a+ ?. T
set-plot-y-range 0.0 ymax
' |- i+ r9 |8 h1 B Cend
& A' S7 [/ E9 P- T6 [6 B* K& o8 G7 s7 W! |/ C! q) ^# Z0 `* N
to setup-plot3
. M! g3 o3 @6 J
8 g" G2 h- v# v" D& w1 R8 gset-current-plot "Trends-of-credibility"
/ G5 p) A& b: t& B2 W9 s
6 H& \. u0 l( J" P* Q) Z- yset-plot-x-range 0 xmax
. I3 f' X8 ]" g
* {2 N4 A# V/ Q# Cset-plot-y-range 0.0 ymax
. J- d1 D' |1 I0 q% d& q: i Eend
+ `% r' p6 @- w; l3 a! i' g! D
9 _4 a* t1 g( W% pto do-plots
% q- r; {+ d" k, O( \set-current-plot "Trends-of-Local-reputation"& K5 ]) z# H- R4 W
set-current-plot-pen "Honest service"
; I1 e( s. b/ ~! ]1 U: W1 t6 Aend
`3 H. o+ u* T' U- A
. [: A& a% l! [/ d[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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