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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/ \9 B# O: ^5 C5 l" [% v; D2 s8 Zglobals[
# s, P4 K0 b! U+ A1 N/ i% p/ Bxmax
& b" ~; e* f6 A$ f, x* ] T$ J; _/ rymax# z5 J+ J2 M) L: H( a7 R1 X( W
global-reputation-list: s/ N# A+ I$ S! v P7 m2 |8 h
+ k. r9 Y' B0 V+ g
;;每一个turtle的全局声誉都存在此LIST中0 B( Z; x$ ~ Z0 `4 z3 U
credibility-list
! }1 s/ \% R( F; `7 a% e;;每一个turtle的评价可信度
& ~% ` E9 ^4 E! Zhonest-service
0 d9 z+ F ^3 L" t d1 i6 Cunhonest-service: s5 J+ _7 u/ D# J5 I
oscillation5 O8 l/ t2 d0 I" V! M( h4 y8 s
rand-dynamic% {8 p: @% d) A% {# {$ t( Q
]
' n6 D! J, ?0 x, ^: ?- X, ^+ G" [" M0 r
turtles-own[4 ~( x) @! o7 D, }
trade-record-all
6 o) O$ i) u0 p6 b6 M6 H8 ~7 j;;a list of lists,由trade-record-one组成* t! q7 O* r) B# E
trade-record-one
- j) T: Z: p2 y( ]% f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 ^4 v( Y2 J. ?- A! ?* ?/ D& v* v1 w( A) T- r: Q
;;[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]]4 e6 a; @$ d3 t9 ?6 l! T
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]% B& N7 z6 h: N7 |' M
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 f' z# T4 c; k2 y7 c- w9 S% b$ @/ N
neighbor-total
( D9 P: }) i1 a( f. d" k `" o;;记录该turtle的邻居节点的数目
" T4 M& {% W- }5 Z; e) Ytrade-time8 K! t& x- F- o& h
;;当前发生交易的turtle的交易时间
# q/ V/ z' T9 H# `9 U2 Xappraise-give
2 C+ w: O7 P I# E) U;;当前发生交易时给出的评价
, S2 s0 ~2 _9 c; ?4 a1 Rappraise-receive5 ~5 v( T* y1 T4 n
;;当前发生交易时收到的评价. [, q. V; l5 Z+ X. c1 K& R
appraise-time: r& |# d8 G- x6 F$ X
;;当前发生交易时的评价时间
+ v0 ~; b) w. O9 }: R& ?& `local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 ~) `8 u3 s. }4 [* k# ^! m1 \. |trade-times-total: ?% i$ I$ j) s/ m' Y2 q; ~
;;与当前turtle的交易总次数: z' U& S& T% }7 M1 n4 @
trade-money-total
+ i( @% i a& D n! Q6 T;;与当前turtle的交易总金额
! |: n0 p U/ F% [; }2 K0 n$ r2 hlocal-reputation
$ ]# `6 R ?6 q& _0 W) B. h( y; E) \global-reputation
8 V% c; Z z2 L! _) J" tcredibility6 d4 {1 d3 b/ n! ?" J, e. s: c
;;评价可信度,每次交易后都需要更新' e1 K& Y7 L1 g: F9 c: T
credibility-all
( v1 m1 f: |# [( x1 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- D" M1 @+ C0 T$ A
2 ^* B7 ~, Z$ \0 \% F- p2 n6 l
;;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
( k! E9 r; F: [1 X! Fcredibility-one/ s. g% K0 ~( J+ a- t! p& F: _
;;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
. m: a+ H: [9 g. w* E: u# Y2 @global-proportion
, @& X1 h& m$ f6 icustomer+ x5 @$ C& b6 a! Z" t1 U2 A9 {
customer-no& I a: z, X$ Q; v6 }
trust-ok
2 _. |+ b: q) {* u: Gtrade-record-one-len;;trade-record-one的长度
) M! y% x) K) u/ Y8 q, y]0 r$ ~5 V. D2 u
- F. r" h7 E- f& i( J;;setup procedure
- M) V. m) d/ D4 E( w
( z7 U# I+ C. R ~to setup
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ca
F) h* _& ~) n& U3 h5 O7 e1 y% `# |* ^( Y
initialize-settings$ S( o& p5 F" ~! w- @( o8 Z3 c
: J9 @8 U0 w3 Zcrt people [setup-turtles]
7 S2 m t/ W8 R. W$ D; W# ]- U# C* w8 m! Y2 F6 R" i% ]
reset-timer- u. |- C% Q5 I* o2 ^) ~
N' p( C5 W& e2 h* \ q- x
poll-class \5 w( R8 ~ j
( w$ R# q# n i; }9 ~$ W n" ysetup-plots
( ^) c$ x- X4 ]. m) ?% Y: S3 r6 o5 z$ Q1 r# v* F
do-plots: u" @$ r* g* G% t
end
; E7 N4 s Z' Y6 v
) B4 W% W) N6 M( O. Nto initialize-settings
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$ y; x( A1 ? d0 @set global-reputation-list []
c' E. x8 G+ @; {5 F
6 \) h$ `/ p2 g/ e$ Dset credibility-list n-values people [0.5]1 H7 z/ Y l8 l Q9 D- L; M2 j
- B$ d9 I- j* K( B" V3 p- |set honest-service 0
+ G2 a: ^! ?% b% _2 c% U8 D! a3 e) T3 V$ b$ X
set unhonest-service 0" h ]& ] j" }8 c% a h Z
0 [! _7 x( X- G/ _" E& V. v
set oscillation 0
. R+ T7 Q$ A5 Q7 |
) L" h1 N/ l* X% g$ w% }set rand-dynamic 0+ h4 E, T7 ^1 j0 J! |7 w
end G8 O4 ~; ?0 f* }1 O4 B W
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to setup-turtles
6 _/ o* R, \$ c- x$ \" E( mset shape "person"
" O. {" `; n' Q h1 W/ U1 R+ hsetxy random-xcor random-ycor# g) G# n4 L* B; H
set trade-record-one []
p6 j2 p* H1 }- }, p, X( c5 H' ?+ b
set trade-record-all n-values people [(list (? + 1) 0 0)]
, n, d2 V) x f$ c B! {7 F+ J
" Y$ Q7 ^$ D5 U9 b( K8 g: \ _set trade-record-current []
! V8 Q3 H5 K& X4 N7 d# Oset credibility-receive []
: A8 P- O$ h' f& J$ Xset local-reputation 0.5: }& T+ B/ W# B
set neighbor-total 0. W: F& p; r4 ~! i/ U9 V2 b
set trade-times-total 0
; P! `6 @/ }) `4 f- L% ]8 Eset trade-money-total 03 K& X3 u: z1 M; _4 W; H, b
set customer nobody
& q% i7 n$ \- j, o! t3 J' ?. ~: ?set credibility-all n-values people [creat-credibility]% `! N) f" a8 d1 I& h* \
set credibility n-values people [-1]7 e* d2 x, D( G0 F
get-color( o9 \ P' U% V( h `
0 J" u v* \7 a8 zend
5 G5 F3 }/ z+ U% x- X' y5 n7 ]2 b: ` [& Q# @
to-report creat-credibility9 E0 {3 P+ ]. p( f6 T
report n-values people [0.5]
% G6 U" J! C- K% e) G2 iend
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to setup-plots
% B7 _! t- g- \- k# q0 Q( X& `6 _1 ?0 k' W$ e! }) x
set xmax 30
5 s- x- R! v- z; _8 j
1 m Z" b, X5 C b/ D/ h9 ^set ymax 1.0
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clear-all-plots
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setup-plot1% ]+ y0 K" `3 ^+ f
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setup-plot26 b; P4 ?8 c% P$ r r
7 z5 ]$ D R) y" \1 O- bsetup-plot3
, j% D! _7 H* [& R3 zend: ~8 O* o7 o! u1 y
0 r" v. c7 A8 n$ {7 ~$ \0 N0 s;;run time procedures0 h$ e7 B; h- H+ l2 s' j, h
1 w$ L+ O! F, ]9 k8 {) X' v% o) _
to go$ v4 u/ G$ k2 A) E! y; @; Q* {' n6 W
5 _% b+ Q0 O2 ]ask turtles [do-business]4 D. l: ]. j# U# y' K
end
) |: H9 @9 q' V2 K4 {' K7 S- [3 g7 ^/ o- i, J2 \6 {2 F+ V
to do-business
& V$ R4 A6 g/ ^7 W& [/ F- |7 R4 N& ]% T0 T( o
4 W6 j( c4 V. D/ Urt random 3604 f) R. }9 E: }0 j
( }. m% f S: \( O( m& x3 \) \fd 1( U& u: ?/ J: j. [- g. k
! K3 ?% e) q; r
ifelse(other turtles-here != nobody)[1 e( x+ }- w( F- ?* R! V$ o7 h3 D, X
1 x6 L4 A" Y+ C" `* b. D
set customer one-of other turtles-here
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;; set [customer] of customer myself- D/ F' W/ Q! t: ~1 g% Y
! b, _1 S- J* Sset [trade-record-one] of self item (([who] of customer) - 1)
) ~5 C; Y! g5 `/ q* i[trade-record-all]of self
. [* u( X, @4 o% B& x1 @;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, y% i3 t- n; O! g" q
. s! f5 R7 R7 h d+ G6 W+ @" _set [trade-record-one] of customer item (([who] of self) - 1)
t# M+ o; a! w) {6 f[trade-record-all]of customer# `# k5 h6 F3 S. _
h- \! R, k9 d+ I8 Rset [trade-record-one-len] of self length [trade-record-one] of self! l& R* f0 k" w2 Q
7 {6 k0 e/ U4 J4 y. Vset trade-record-current( list (timer) (random money-upper-limit))/ {4 Y3 ^4 o+ i* d
" v4 @5 ^2 ~6 O, X
ask self [do-trust]) B' l, E. K9 H3 ^$ X7 b
;;先求i对j的信任度2 z# s9 x* `: @, d E) D' K3 v0 S
, Y+ D) s: J5 W9 @" p
if ([trust-ok] of self)
; g& {. ~8 A( w: I;;根据i对j的信任度来决定是否与j进行交易[$ D$ x$ {/ O5 _- H/ I! C
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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' [+ `' y, G {2 u" k[
$ X& P" `4 V6 i/ b3 i! ^7 l" U
+ i: \; F( j( Z4 h% `. xdo-trade
: ?, o* x4 G% K8 o$ C+ A8 i
8 y- B. \ f r% ?update-credibility-ijl
n" d1 J! D1 f7 c- p/ j' W7 ]% A9 L- T. \$ Z
update-credibility-list
2 `5 R8 g: t* F
- r/ K, I+ L. _/ }
/ k8 {8 r# V) g' l% ]8 Z' _update-global-reputation-list
" t1 [5 P8 \ P& X5 c# q5 Y) {
& i* \+ u2 ^5 Q4 Hpoll-class
5 J$ |1 ^+ D/ k# q: ~4 i
! Y) r) f" J3 ^7 v& Q1 Jget-color
. L7 v: P& F- }$ r) a1 X
( I7 G1 j6 J8 b4 j]]
! Y% e4 M& _! F- }: j; N
3 x; F1 [! y: l! T+ G;;如果所得的信任度满足条件,则进行交易2 b/ y8 v# Y' [( F, e2 d) C- O; y4 \& s
. d( |5 I3 }7 l$ v, o* z! y' d[
+ j. t% G) _! U% n: a# }( E7 w& o5 f/ s+ V
rt random 360$ ^+ `; `. H$ B$ |) t
% y, Y8 x- G( D3 gfd 1: t- d. `% h9 o( [
% l* E3 i7 B a& i
]
" M4 Y& n; {4 U& Q. v n& W. J' f; ]! o4 ~6 k3 |
end
$ j: E3 U- A7 \ h0 D0 y8 M+ ~
7 }) ], B3 X2 _, fto do-trust ( Q A J+ t* x) Z2 w& I
set trust-ok False I3 Y$ B. | c3 L; K* x# V
5 A0 D. a1 E7 j* k
2 q- w# Z7 c6 C2 Z# [
let max-trade-times 0! i0 J: {$ e1 i& s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( h8 R6 P. l# h2 |2 Ilet max-trade-money 0
0 S. F' L: r( @7 W6 C* Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], C* X4 W6 d! S( s) \9 M
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 B9 v5 R7 f" c+ A C3 D1 w& {# @9 z1 l m8 V g2 t
) \, m& S! F7 z0 Rget-global-proportion( e1 O/ a8 T4 w2 [) H1 ^
let trust-value
' z3 g2 I* O% p+ F' }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)2 p' h9 H: W' P" F/ n& ?
if(trust-value > trade-trust-value)
; C8 S" ^6 s4 A, u5 V: t/ H: @[set trust-ok true], L& g! @3 y' z9 ]# i5 i, `8 b
end7 L# R5 l3 |. \4 d" ]
9 B( V/ g/ {- _- p2 e6 dto get-global-proportion
! u6 n& T1 F7 } b2 Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. |- Z9 ], x3 x[set global-proportion 0]4 J1 V+ _! O0 k* C
[let i 0
& y0 a5 }6 Y; I5 ?3 w- J2 ], |. Ylet sum-money 0
1 j% g w. b9 f0 ^- B+ g3 P5 _while[ i < people]
* D+ M+ h# R3 d& y9 ]' g[* N; t6 ~/ t& f- i+ D, l8 k- J
if( length (item i! o: ~0 A; F; { Z
[trade-record-all] of customer) > 3 )' z6 W) T" H4 a1 b" S
[7 t% g$ [$ z9 z _1 `1 O, {
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' i. F- n; A/ ]0 @# }, N8 @
], t' v3 r1 T: \' i: m. t. H) \8 }* h
]
3 N7 f( k$ J. V+ q {% N! hlet j 0/ P) e; k7 u+ o
let note 0
$ O0 I2 ^) P- \/ f& J1 o& ]& rwhile[ j < people]3 V$ p# r/ p6 v# R* @" v1 _
[' K: k1 J* T) X( e7 `. y4 y4 a
if( length (item i0 ?0 E4 \+ |2 _- q- z
[trade-record-all] of customer) > 3 )2 f/ y1 r4 `6 i* O# D( _
[
! b! U2 |. c8 w; Kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! f9 O1 W, g$ e[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) I# T9 U1 h* X b. X% r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 s1 m( i. [5 Q% g7 x]
; M, R" q9 ?8 @9 m, i9 N2 @1 f]' e. E% J4 l% ?5 ~1 j" U4 n A
set global-proportion note3 u0 F: A% @& d0 K% b1 `# F
]/ j C* }+ s( Q" l& a$ Z
end5 z: F; j3 q0 h7 v U( k9 Q
/ q$ Z" L3 V" J+ oto do-trade8 s' q- p6 ]' G; Q# _
;;这个过程实际上是给双方作出评价的过程
; W& ]8 B5 B3 P; ?/ |! Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 D6 h7 _5 f8 q' D# a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. h1 D: x, ~5 A: s
set trade-record-current lput(timer) trade-record-current3 [& h& C& \( t; m7 C1 y- ~
;;评价时间, y6 Q6 w: \; B0 |
ask myself [
: F/ b+ K1 a! W8 Y) g% A: |update-local-reputation7 e8 m; S4 v* m4 |& q1 h: m
set trade-record-current lput([local-reputation] of myself) trade-record-current
- ^$ k6 S" o' w% H Z+ []
+ e6 K E. e$ Y' t- r5 Nset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! v" S$ |5 K) h+ q: q$ W
;;将此次交易的记录加入到trade-record-one中
. H$ q2 }8 ]1 G, V7 \& \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), ~5 `! K: @& N+ C$ g
let note (item 2 trade-record-current )
0 q/ d3 V" q. X7 A& q2 p: ]set trade-record-current
/ S9 u0 W& W' _(replace-item 2 trade-record-current (item 3 trade-record-current))* Y+ B9 v P+ b* _+ O
set trade-record-current
& b' @: ~0 F4 W6 k/ M1 c# s(replace-item 3 trade-record-current note)) \% u$ X6 [2 Z( `* E8 B$ z
, S' O: P& x! Y5 t& D3 t% T3 j2 |
ask customer [
% Z3 {* l0 q4 r* ]7 Z+ V+ Y- }update-local-reputation: ]* Q6 x0 U% Z) `1 Z; Y' d6 h
set trade-record-current
5 `" M7 S, `/ H) e5 j8 j. K+ b(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) , p- y/ D# x( f4 j( s) V# d/ B1 S% s
]8 v& W- o- ]4 g7 G& L, q# Q8 i
7 C& F2 b% ]# S
& v. ~6 h' z) Y; ^
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( R5 z6 E1 Q6 |& t6 m. c/ L. I6 n. ?+ l Z0 c# P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) ^5 {0 C4 F% n `1 P" C( y+ Y;;将此次交易的记录加入到customer的trade-record-all中
/ H) e9 Q# j! u/ S- m; D9 Pend
( N: n3 E2 [1 M. t6 [* g% S: E+ s; u) L/ W* }! _0 i
to update-local-reputation0 C( _: Z2 x3 E& F0 e. {
set [trade-record-one-len] of myself length [trade-record-one] of myself5 [1 P) z/ [/ y2 J# |
9 i4 ~" y) _8 b# _
% P( P1 ^5 i' i: y;;if [trade-record-one-len] of myself > 3
0 h. p# L8 P$ t- f$ ]- y1 p( E Q `( _update-neighbor-total& _ C# z) s, m6 s% x1 E/ R2 u* @
;;更新邻居节点的数目,在此进行1 H. k! c+ W0 W8 `
let i 3& y7 \2 P8 j* Z( H
let sum-time 0
7 ~+ F* n, p+ d, p* j& p- x& P# G: Owhile[i < [trade-record-one-len] of myself]
0 l2 H5 ?* A9 I3 }- z( J! K6 W; c[# q- t# _- X2 b# _; H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) N3 x! q. T( W
set i' h0 a1 g2 [: n, k4 G, x
( i + 1)
' E; j2 T( u3 D# x]
6 f5 c0 \: w4 j6 ^: ^' {) Blet j 3( U9 \5 j' ~! a7 l$ y0 B8 n$ g
let sum-money 01 k! q6 `3 o5 B% j# F
while[j < [trade-record-one-len] of myself]# {$ z( L7 j# [. I
[/ |2 a# ~* @% `+ w7 S
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), f- E) s' E7 E
set j
0 e9 E* {" D+ X; Z: z. K( j + 1)
* z5 D R% H9 ]2 W]
! _0 f5 _& m+ r/ I+ |: s! G# H5 n% glet k 34 c0 I& k; D+ ?. ^& v; f. K
let power 0
( w0 o! a: s2 ^3 ~let local 0
, {+ B1 R) D5 ^0 X: M; V) K* Y3 Rwhile [k <[trade-record-one-len] of myself]' m' }9 h# R, E) k: E
[" I2 s# o2 Y( P- N7 e: H; r" w J
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) 1 q6 v0 P6 v' \6 U% b
set k (k + 1)
{1 y/ I5 J& L3 j% r7 {% M- E]
* s- Y+ S! k. }& X+ `+ yset [local-reputation] of myself (local)' G5 j0 U1 W G" c8 B3 P
end
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' {/ ~5 L" n# @" C( R1 \to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 d+ y: u; `9 D4 I0 p: X. P# g/ m
6 @2 p! ~4 s3 [3 R' H4 L( w# A" a' F
end) g( w) H% A; L4 _2 T6 x8 s* F6 o
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to update-credibility-ijl 7 t1 h* m# _: A$ T
" a; c7 G2 l% M8 B2 o;;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。, L% M6 v! O5 y6 @+ ]) v) i
let l 05 `9 n. _" A4 D* R; \* j2 U- E" l
while[ l < people ]
+ O6 M- Q) E( I;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; ~2 q& T6 B, f2 `/ E5 mif (trade-record-one-j-l-len > 3)
" w6 `/ h. V4 Z; {[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+ T5 P2 p% O; S& r# K% q: M
let i 35 Z1 @: j) `, |" k2 h. T
let sum-time 0
$ V, s9 s; y" A+ Gwhile[i < trade-record-one-len]0 E* {2 |+ y) H' `& I3 ^
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ c* @" _9 H. l, d+ U6 F! |
set i
5 k( P6 `; @4 K/ F& S [$ y' ~( i + 1)- K! x# E: P( B' m) {) A$ }# `
]
- x; t; J5 S: t3 M+ g3 k. {let credibility-i-j-l 0
& i1 {# F1 J3 q! l# t;;i评价(j对jl的评价)2 U0 w3 @3 r! ~% J7 x# F+ I; n
let j 3/ {- A) P% s! w' x( F$ Z
let k 4
6 ~. }4 H0 v2 g! Mwhile[j < trade-record-one-len]
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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 j+ l8 l( c4 }8 {
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)
, M* D7 q9 m& Q' p3 ~set j
( j% R+ j2 R7 u( j + 1)
1 `. m8 u# M6 r4 m1 u' ^8 c]. W% D0 Q0 I* ?! n5 }: s
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 ))
) L# D: O$ ^, L+ ?3 I$ x w+ k1 y- Q/ h1 B4 f* {7 ~7 g, ]
& h& D. h! W9 h4 F+ \, u; `! alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) W' ?& Z+ W- ]% w6 f;;及时更新i对l的评价质量的评价
+ A, h0 f, K$ v. J1 L3 Iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 L9 P. q6 m' W( l
set l (l + 1)' h9 u6 y6 @2 o4 |3 ]1 r
]7 h' c+ Z/ K3 l; h# q9 o
end& a' x, q, t$ T' { S+ U
5 `6 M0 k l& k! z7 L; k5 pto update-credibility-list! K' V& Y2 |( y% \( p
let i 0
* c+ O8 `+ o) m, g0 \/ Awhile[i < people]
1 Z+ {) [0 x- Z[
" ^0 b! s2 h2 ^0 i* W! x+ Z& W3 olet j 0- M8 B. L1 V! X2 z, F
let note 0. m8 a/ v1 l7 h4 t! v
let k 09 {. L6 r4 Q& S5 m# e- }
;;计作出过评价的邻居节点的数目: O# Z2 T+ j$ {1 ?- y/ w1 O- s! _
while[j < people]
# p& Y# P: J# }! a) C3 K6 O8 f[4 e& ^7 P7 I7 g. ^$ b- L) m, {
if (item j( [credibility] of turtle (i + 1)) != -1)2 ?; p. _5 S3 J+ ?, S5 R
;;判断是否给本turtle的评价质量做出过评价的节点, }! g: a1 ?0 Y- o* y+ T h: T
[set note (note + item j ([credibility]of turtle (i + 1))): o/ E1 M& y$ d, L2 P5 H
;;*(exp (-(people - 2)))/(people - 2))]
: p) j! i( K6 r7 w/ p$ k1 z3 kset k (k + 1)- g& c6 p3 T U
]
2 P3 \/ Z' ?& l, `set j (j + 1)$ W5 n& I3 _- D
]
0 z& K/ j5 k! [set note (note *(exp (- (1 / k)))/ k)* W* ]- H d/ N0 {# N v R3 m. I
set credibility-list (replace-item i credibility-list note)
" _+ |/ O+ b" _3 C9 \) cset i (i + 1)5 v/ g; a, P! J, u; V0 W
]) n" u* T& ~# B6 O ~
end, ~$ X# S* c, ]. r& t/ ]) U
; h; q5 U/ Z0 q7 p1 Dto update-global-reputation-list
- I g8 W; u( D0 W- G# f8 Nlet j 0- x0 ?9 G! ^2 k
while[j < people]7 b5 l( o- _. l. |4 C9 E
[0 f- b J0 _% f% ?$ I. `- t
let new 04 l9 a+ }1 z* M1 f
;;暂存新的一个全局声誉
. m2 S# M6 g/ m' g7 H! C0 @let i 0
9 H' b8 f6 C) r! P, T9 P5 ?1 slet sum-money 0
1 _. H/ d, c6 E8 w7 |* alet credibility-money 0
; F* Y5 P+ L. F% a( hwhile [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 U! u) C; f" a/ ]set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% e X2 W9 U, U% l) D% xset i (i + 1)' G. B/ e. @+ P
]
" N. X3 ?7 {# R- P4 }2 S4 Blet k 0
! _& X# ~6 o& ~let new1 07 Z* z0 @; t# o' I. V+ P W! l
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)) f5 y6 ~! ]& [( `
set k (k + 1)" `# R1 e3 i( A5 J2 R( e
]5 w9 x- D7 r0 p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 U5 {0 C L+ f& zset global-reputation-list (replace-item j global-reputation-list new)
, b. g0 k4 V; H+ @1 Z; K9 [set j (j + 1)
; J% y; U. C- }]
7 ?; k- J! Z3 hend* f1 u1 ?+ |6 g u( O
, R; f. g* L; P
& S' o2 _5 J' n* z# G$ P- c' u! M
: Y& X: y: J+ ^# ~3 \1 F6 `: G' Z1 p
to get-color @ m2 `* ]- m. `* W) t0 i
0 Q+ [9 N( f7 `- a
set color blue
2 \" u- B6 ?! G0 _% pend, W+ u3 k$ X4 D
' M% ~6 x* \. U- e0 [
to poll-class
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% l' ~) Y" ^% ^6 S2 ~4 M- b
to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
2 a z* G, |, ]) S2 {- Q/ i& \
r" q, ?0 T5 I- g- F% u* bset-plot-x-range 0 xmax: s: w6 k) R, k/ X* S
: h+ k5 A5 a1 N9 P
set-plot-y-range 0.0 ymax/ ^/ j4 ~- V7 }2 p: l& v4 |. P
end4 n8 Q0 V5 Y! u
- I( Q0 {/ g; F7 Kto setup-plot2
t# N( D3 q% ^# B8 l3 @. ]7 z0 D0 J& ^1 `8 g. R4 I; \
set-current-plot "Trends-of-global-reputation"
1 a3 Z$ n. _/ d! i2 K; O# z9 d/ x8 s6 C
set-plot-x-range 0 xmax
) E! M5 ]% T G. y8 e8 {) \, p2 P1 _/ A- i! [. i) s1 K+ q- m
set-plot-y-range 0.0 ymax2 k. C/ b6 F. d" K; |
end
/ x, {( }8 Q" j# f7 m, ?) H4 r/ G
! r7 y V+ b! z- Bto setup-plot3
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set-current-plot "Trends-of-credibility"
7 y: X2 m0 V# C# L" F4 I! u0 }( J$ v# G
set-plot-x-range 0 xmax: U; y$ C7 N1 Y% r
" z; b) c1 M2 C' F8 Nset-plot-y-range 0.0 ymax7 G8 A6 s( H0 s' d2 P8 T& c7 \
end
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# g2 m/ D( \; I, ]! ]5 `to do-plots4 G+ t( Z0 x3 t
set-current-plot "Trends-of-Local-reputation"
" w9 Y; n% d& F+ r+ nset-current-plot-pen "Honest service"
! A% B6 p/ U1 Y4 `: G* g' Wend( X! `) `5 ?- V
2 ` ?. O: v% s; h! |* C" ]7 ~[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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