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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
# j8 O) ?4 E/ r% Xglobals[
* l7 T& l; [1 o, _xmax( N9 z4 c9 e; x$ [5 j* h
ymax+ T* _3 G8 e) {) D
global-reputation-list
/ u, x+ Z* y/ P* R1 Z# K" ?" v0 |# |
;;每一个turtle的全局声誉都存在此LIST中' ^! Z* T' ] v% u
credibility-list6 | n) N7 X4 E; b0 {$ y
;;每一个turtle的评价可信度3 a2 i. ]4 g9 e9 X
honest-service
' F" X, _& m/ z1 D7 S xunhonest-service
( F8 B9 f. Q% b# ]oscillation
2 l: L+ a* L+ Lrand-dynamic( s6 Y, p& D+ f
]
+ g0 A* j* P) s1 X4 G; c# P5 W
& o+ j* |! P+ E2 }turtles-own[* |) |: Q$ M% G
trade-record-all
: _! f" v3 k- H# V2 i6 G;;a list of lists,由trade-record-one组成
4 |/ x& J A- K8 Etrade-record-one
) X$ A- q( v6 m" `3 W, K5 i;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# k; O, W; X5 T$ |5 O
! Z7 t; k( h: u0 y8 ? x3 Y;;[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]]+ ~. X7 ^' c( ^9 _
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]
2 T/ u: t8 L, c$ i5 f) l" G7 dcredibility-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
& K% }' D' B8 Q; gneighbor-total) S5 P% O6 j9 S2 P8 m: A
;;记录该turtle的邻居节点的数目
/ @8 F8 C# G! ~% O5 D7 M; E9 [trade-time
0 g7 q2 e0 \" ]8 |0 O9 o( b;;当前发生交易的turtle的交易时间
; _7 J8 R7 }: Iappraise-give$ ^% [2 O9 y6 @% r
;;当前发生交易时给出的评价; u g3 `5 y a- c! R' ]
appraise-receive
1 p/ Q S" S+ H/ y/ K+ Z;;当前发生交易时收到的评价
7 A* a4 b( z0 W* g( {appraise-time, _. x" R1 [5 \
;;当前发生交易时的评价时间
( X8 v# z5 k3 o' ], d% K9 Z3 }local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ n& c0 ]9 u5 e' A. ?2 D% h4 Xtrade-times-total# D0 t Q' y" t6 e/ D
;;与当前turtle的交易总次数" F" B7 I( x& E' {2 k. |
trade-money-total9 t/ e* s# T( `, ~
;;与当前turtle的交易总金额 j- S! q4 T: F( M' v- D( X
local-reputation* B( x7 y& C4 Y" \; b, L
global-reputation
! ]* I1 ~; n1 B$ c. ycredibility; t s& {/ I8 i: D. x
;;评价可信度,每次交易后都需要更新
8 s4 D2 D+ \& `credibility-all+ q& H" R! @! u8 l$ h+ y# U
;;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 u. e) D: W9 Y4 C, U9 R6 l9 j0 o! ~( P0 h
;;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0.58 v) M, F9 w- c2 _) E+ G
credibility-one
$ `+ e/ w: Y4 b- R' z$ d7 T6 b;;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' }, I- f( \ ~! Y$ I) R) a. `
global-proportion2 t1 J, @. @5 ]' J
customer
4 F# n7 f. O; q ~3 N! X$ T% Vcustomer-no
; H6 |5 y8 r8 J0 ~2 ptrust-ok
3 K6 j1 J4 v+ u- btrade-record-one-len;;trade-record-one的长度
# s& V6 Y3 s% ?+ w* ?& R]& n3 h/ o' M4 i5 w% a$ |0 l
. Z5 O% t4 L! r+ G- k" M
;;setup procedure
4 g) l" V: p8 R1 E, n0 ]# o& B# U6 N' z! K% G( c
to setup1 w0 W( x( j5 a( Z
$ W# A. _4 K7 R+ J( u2 D
ca
0 _$ o0 n4 i3 W7 F! @
# |) E8 J' V. S' B9 I5 ^1 xinitialize-settings
7 o) b7 d) U M: t: h
" ~% P, r$ |( s( {crt people [setup-turtles]3 I6 h: v9 _* N( S2 q/ A% c( o4 u
* v" G2 D0 Z0 U$ t0 [
reset-timer8 {* B- \! e) N- `0 w/ v
: B+ G7 C% ?# R% Q" W$ opoll-class/ [, B1 v5 W/ ]% h/ I
" R( P' g+ W9 w! I/ Ssetup-plots
9 U6 C9 C4 M+ T' L/ d2 v, |" R W1 y
do-plots7 j. U& s. Y8 }2 D0 z: s( X
end
; M2 t8 S, m; Q+ M. a8 L
/ k( }/ a3 H) l" gto initialize-settings
% u: L! f w0 X8 X
$ J( U4 g* ^: H$ R* `7 yset global-reputation-list []9 U' V& ]& K$ g# l( K9 s
: s1 p: y1 C; H0 K1 u
set credibility-list n-values people [0.5]
1 [7 _" y: F& l1 B% J1 C
- e4 ]; l; n' [5 N+ Dset honest-service 0
+ U! Y* u/ @' V" d' W( P. V/ Z& y3 ?. L2 q# j9 O- C
set unhonest-service 0
. A( `8 d5 ^" y+ \- e* {8 b
8 i3 P9 D( D) y5 lset oscillation 03 S% F' M7 K5 L) H' z
1 N- d. z8 _4 W: |1 q7 H: x& c
set rand-dynamic 0+ G; @& e$ H. z a5 L# ~& R
end
* g1 l! F; |, i3 t+ i
: k3 S2 M6 @% gto setup-turtles 6 F8 T' c) Q$ y5 y6 I& q
set shape "person": Y, }9 _( _6 d& \* y9 s9 ~5 o- y
setxy random-xcor random-ycor% ^" P! Z' F& [4 f) b( J8 V
set trade-record-one []
$ o9 R2 M; i2 F, M1 n9 _% W1 t, N a
( v, s; X! f6 S% z0 n' s& k6 p6 _set trade-record-all n-values people [(list (? + 1) 0 0)]
: x3 g+ u& b. t9 Z: |- O/ W$ x, a1 s0 C& s
set trade-record-current []1 @9 B+ W7 ^. `, ]2 [( X8 Y
set credibility-receive []* {- a9 I" W' r4 c
set local-reputation 0.5
; e, ]3 W4 G+ O( m- A3 Xset neighbor-total 0
1 ]& M! R8 k! @3 y& T# P3 Qset trade-times-total 0
5 i3 t0 M- c5 r j' J: x6 iset trade-money-total 0
2 t9 b& |- g/ u) r- Aset customer nobody' K9 e! n0 N- R0 _/ k1 ]
set credibility-all n-values people [creat-credibility]
/ k5 g \4 {$ ]; E: lset credibility n-values people [-1]7 _3 f8 O5 Y* |( s5 T& W# u7 y
get-color
: j* Z' y" ^9 Z( `" B. e! x/ q
: D+ H- v4 f6 a, Tend
" `6 t+ k% {# g% o4 R! ]
- R# M2 K5 D+ l2 `to-report creat-credibility
6 r3 U) H& Y6 g# F; Z" Treport n-values people [0.5]2 E+ B1 l; c$ p, i6 V
end B1 ~- p, d% u+ s8 ]
7 k2 D* n! _1 W4 a: O3 `7 ~to setup-plots0 A K6 h) N. h; z" o/ h
4 w$ c6 u" r" g. d) `, O+ I# ?* [set xmax 30
% X& H8 Z. `) Y. i
; S/ X* }* p( x, Z( [% Tset ymax 1.0 k- }8 o; g% I0 f+ V
' d% C5 _+ ]6 i& Q7 u# C: V5 S
clear-all-plots
9 E, p1 z6 A7 k6 M: v
" C+ l5 I1 s% Z# B& `* y0 X+ esetup-plot1" F: A+ A- q7 u: g
# Z$ ^9 m6 ?! Qsetup-plot2
4 ^1 I0 f i ]: \. {" {7 S% _$ w- M1 e: `7 a! w/ F/ M7 l) `
setup-plot3- x, h7 ^. i- }' `( ]
end
$ S( h( O9 @" }; _% d' D* a( t6 r6 R
;;run time procedures) J0 X$ L$ m0 W, ]
% Y, G8 a! u. o# P d8 |
to go# _+ _1 D' z: ^
$ `& ^ V5 v- X7 l
ask turtles [do-business]' I1 l+ X3 r7 \" [0 A, ^
end
/ w. `8 N7 G9 Q3 M
4 Z+ f$ W( @9 L& ]' d3 E) cto do-business
' v& W; m4 Z( \0 `( D) U' t
( x# R1 q v6 j" r0 i$ \* x- j, S# |" |3 ]" M7 u# x$ F6 j- v
rt random 360% @! @4 Y5 B0 |: H+ M* w9 G9 E" y/ f/ ]
, J5 p+ s7 ~4 Q& } G$ @0 H
fd 1$ a! D3 B3 F- D2 \# }" L+ d' j
% |: {1 J( }0 z0 I( F, k( Nifelse(other turtles-here != nobody)[
3 r$ y& S, o# @$ n6 p) i0 `$ F/ y# s5 G1 v9 a
set customer one-of other turtles-here: z: I- L& T5 u* P% v% p
# O; z( x" @- S2 B7 i
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
: E' U1 ]4 k, Q) R& r: x" Q, y[trade-record-all]of self! }: l) l; f0 N& M8 _
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 C* ^" R/ V& G, ^0 k
* p* ^( P' |4 o. d/ E$ c9 r$ ?+ s; y
set [trade-record-one] of customer item (([who] of self) - 1)7 \$ T8 @& ?& w* i
[trade-record-all]of customer0 s% f. `4 ~3 h8 _% k) W2 x
3 _; x( I" ?/ ]! Kset [trade-record-one-len] of self length [trade-record-one] of self
; k9 T, Q' E5 _6 {* z! O: L" a! p
G( A8 k, }- K, \! H1 o. b" e8 jset trade-record-current( list (timer) (random money-upper-limit))4 j O |! q/ k- j9 v. D, V8 U; |. p
+ R R: l$ g0 ]3 V) vask self [do-trust]
) B# _ I3 c7 A0 p9 ?, J- d S, q7 E0 p;;先求i对j的信任度
/ M* G/ v- b1 N2 a% q) ?/ y
G! f* u1 E% S" uif ([trust-ok] of self)+ m0 U n* v& d! [2 z$ I% ^
;;根据i对j的信任度来决定是否与j进行交易[* c! J p# ~8 M, U. y* B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ O+ {; \# {( C; |' t1 F2 O
; a" F. E3 V, ^. I( M& Z. O. ][* j0 Y# W1 C2 W! Y( s# u
- R: I8 `/ J8 ^* i1 N
do-trade! n3 S! y8 }* C* ], N2 ] R
9 F* l/ w7 ~: L3 ^ T: Z- s, [' m' N
update-credibility-ijl
, a# V a* F# k' O( u7 G# D! K7 F
% A8 P( R7 c% I- e3 C- s, u& r9 `2 M5 Kupdate-credibility-list' A# H- I0 J2 T
7 \& m* b3 Z6 v# [
( a: N6 B$ y! D% Qupdate-global-reputation-list
0 U4 t: c1 d; | u& A4 m6 b" L& i/ A$ ` ]
poll-class
* X( _8 g X' k" p! t1 p: a6 `" Q$ i
get-color3 e/ K3 P1 k8 ~3 f5 d
$ N2 j5 w5 M, J7 ^( y! q- k
]]7 G/ v3 z( e# ]7 ]4 ^1 J
% J, M6 b. u3 F" n+ B# J, X1 y
;;如果所得的信任度满足条件,则进行交易+ f; o% T- y# u3 y: P4 z
2 E9 }7 Y" j1 i$ [& x7 Q[
8 G9 T4 a8 B# H2 ]' C+ z( Y6 l* O9 h$ D" Z( G# A
rt random 360# V, F: f7 H( o4 |) O w+ h; o9 R; F
: A: ?8 ~: u rfd 1: J9 P" L0 A t; D" T9 F5 q
* I2 q' Y- I0 o9 C! o7 o; \]
6 }: H! W! W' s2 M
$ \, w0 y0 C) h7 K* t& \end0 K, V! W) z9 h/ d2 {6 L
- |) M" w0 G) }to do-trust ; U- T) r& z, C! k
set trust-ok False
+ S H2 J0 S; D c! t! d
/ |4 @! G9 W+ t3 J$ k$ E6 M$ l/ G- c0 j' S* o
let max-trade-times 02 `0 I$ Y7 E" G
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 k! l) G% U* \) @; C
let max-trade-money 0
2 m* l8 E$ y4 s: d" o6 Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% S# `/ k f p( y4 \7 v: C, J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& J6 l1 i8 }# B% D- {9 R8 i
3 f! `4 p: }; x2 B5 W
# G7 t2 k% \! h/ t1 [get-global-proportion
% E' X8 l G* T# Ylet trust-value
6 m ^% i$ v( M; D9 Flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
5 ^9 w+ A7 D1 O d: Pif(trust-value > trade-trust-value)
" A: Y9 y# o' \, x[set trust-ok true]' [ y4 S/ @ \
end
& |: X E$ E: {7 f% u4 o6 R. H! H# X! O& h8 ]9 M* n9 e; G
to get-global-proportion9 m) t3 C3 b- }# M. Q6 F+ Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). M: {9 H) y" O" B+ g
[set global-proportion 0]
' f! u/ P1 [5 T6 e& g[let i 0
2 I9 x6 D1 g. o3 U6 vlet sum-money 0
! @$ d* U! A7 K& Bwhile[ i < people]. [" R6 r7 D( w+ B# N6 b( e6 u
[
4 F9 U3 H: ^( K& _# |" A) X0 Oif( length (item i
2 e, }' V1 j5 A3 d; s4 a" a[trade-record-all] of customer) > 3 )
* o- A9 K9 j# Y) {* T6 s4 G[
7 w: ^; I6 p) J' pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ H( d& ?& y( f4 P2 L: R
]3 X! i% N! R: B2 L% z, `( T2 R* q
]
. S( Q& k, O; L5 l# ?+ [' Q! Plet j 0
( B- L/ Y& B2 J! i' Z2 Plet note 0
, u" [4 O2 V7 h1 gwhile[ j < people]! a" F- l9 X+ d0 Q4 _: |
[7 G v$ d; y8 o& f# M3 h: O
if( length (item i$ D% N1 `5 Z7 Q D' O1 [. ~
[trade-record-all] of customer) > 3 )
; m( g6 k6 T* x# a- U[
. R* @ h. W( U) G9 o7 ^3 bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 F. u' p9 \. W& w5 l9 \ V4 h+ Q[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ Y. t& m) B: Y. |0 ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; K4 O B; ?2 B; [0 \* `* e0 G
]
o2 o6 k) `" C2 G) G, ?]
) u2 F [ |6 q0 s' Y6 Dset global-proportion note4 H y% |+ E" v) ]$ i8 I5 o% U7 a
]) Q% h- ]9 u3 K+ P) y7 _4 M
end
, o9 \ q9 ]' O1 }3 _/ x: c
/ n+ w# S; Y# _$ x* J" Eto do-trade
* W7 G8 ]: y- w7 o+ U;;这个过程实际上是给双方作出评价的过程
4 {# u* r/ p" b/ J0 F xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- `2 x" n- ]/ c4 W9 ^ v* S& H' l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: |3 o7 V7 o" ]+ R) j ?7 V9 b" Tset trade-record-current lput(timer) trade-record-current
! S% r* x% z1 O' Q l7 i: Z/ K9 s;;评价时间
6 h; a3 ]' s4 Lask myself [+ i/ c7 e z1 h. y+ ~" P; c
update-local-reputation
* M9 P, m4 N. M, w3 n% Dset trade-record-current lput([local-reputation] of myself) trade-record-current! t7 l* i$ |" L, i3 }
]
% a# @6 f3 @- |- C; \8 I+ O( t: oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' t" w& y) g, R* {6 F: \
;;将此次交易的记录加入到trade-record-one中
9 s5 K l$ Q3 Wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 [$ x" u: \' [" }9 H; e
let note (item 2 trade-record-current )
. b) q. b2 {; X" c! U. Sset trade-record-current2 X0 k( i5 A6 O1 |2 _# v
(replace-item 2 trade-record-current (item 3 trade-record-current)), o1 B1 P# ~9 C4 E( B+ O! _
set trade-record-current# v2 o3 ~/ e3 P
(replace-item 3 trade-record-current note)/ k x6 d4 W k6 J
# ?4 o3 Z+ F9 V+ X! W; B# h
' M0 u7 ~" q, J# \ask customer [
+ q$ @0 a2 E' `# Kupdate-local-reputation/ k: V5 W, E" p( e2 Q3 W
set trade-record-current
4 t" M/ R8 R0 h+ Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) O8 u* f( g7 _8 R# K7 {% m7 q]
4 b6 o/ S$ ]* B# ?$ \7 b% \3 U+ e7 {9 ~% ~ Y+ X
! W" Z) e4 `, @7 M' jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# ]/ y% c7 n( Y& m: m- ~
& s, r) M4 D2 q, c7 iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 ^7 l- x, \2 w, h9 R3 t( S, j+ C; J
;;将此次交易的记录加入到customer的trade-record-all中- T5 U4 V5 ^2 q! G$ C
end5 j, P9 P6 t$ |, R
- o) H5 t$ F2 mto update-local-reputation
' T: Q8 D9 H/ L! t$ [( h# f( p6 q% [" bset [trade-record-one-len] of myself length [trade-record-one] of myself/ Q! U, e4 o9 X7 G6 M0 z& [. N3 z, x
( H7 ?' h) Y! X1 ?, e' j& i
3 l; }, g6 z1 d& n
;;if [trade-record-one-len] of myself > 3 : t8 h" F5 L# |0 h
update-neighbor-total
3 B, \+ E+ S, E, x: T$ v9 ?;;更新邻居节点的数目,在此进行
* Y3 _- j* k% e2 j4 g) R7 [let i 35 E4 X5 Q( F: F* I Y+ T
let sum-time 0; @( h5 v9 U+ H' X; [/ ~: Y
while[i < [trade-record-one-len] of myself]
3 u: t: Q2 B" V/ I4 H[
" m3 r; f& U, ~% m+ y3 C7 c/ Lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 s5 ]6 r$ l! X4 O4 X
set i
# ]# u9 S3 w% S' [9 a1 k# s( i + 1)
6 F5 r. s" _1 Q3 A]) C' F, k/ c8 G
let j 3' R+ O0 U1 i( l8 C1 I
let sum-money 0
$ z' s. [3 ^9 K8 Rwhile[j < [trade-record-one-len] of myself]3 u' b8 O' t; B
[; Y% @& l$ {& Y) V
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)
; i3 S) v! _* q2 h1 kset j
, n2 H H7 y! m( j + 1)
6 p1 h8 V0 K0 b6 w& j2 U6 B]( l v$ m" d9 y3 ^% d
let k 3
$ y4 a* M2 P$ C6 v& }5 Nlet power 05 O" S, i3 W, D0 S
let local 0 N, w9 w2 f" |3 ~9 {
while [k <[trade-record-one-len] of myself]6 N6 u" J" G" \( ^' w" {! ^' l
[
1 p/ t6 i4 V3 y$ Q: y+ K& rset 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) & b* U8 ~' ]/ l- @/ E; |4 E. A# B
set k (k + 1)
9 M0 K- P: j+ ~' e2 t7 N* M]
0 i6 ~. v, _3 J Aset [local-reputation] of myself (local)0 J! H1 P* _& d5 f# X! \; _4 d
end0 Z; ?. R }* t* E/ Q
7 P# p" Q3 c+ f/ O( q2 k
to update-neighbor-total
, v" S9 F( Q; x4 @! S3 s2 W/ D1 e$ g! P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' x% v! p/ N/ o" }& f8 C* O: g v
1 U6 x7 f# E+ X6 O1 G* `* U
% Q$ d3 L+ `% m& D% R! P& T8 qend
+ T( s3 B6 ^: {/ t% U
9 R8 Y# B+ [' S* ]% V$ uto update-credibility-ijl A; o3 ]9 J4 ~$ r* g6 u& M
, W4 z8 d. T- ^5 p- q$ a7 |;;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 f* q) w' {! h3 q9 {! S
let l 0
9 B5 Z7 M* @0 z4 d" R$ Dwhile[ l < people ]
5 d! c* @1 x+ r+ 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1 C) b9 Q% K4 b1 Q- Z( M9 H
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# o6 b9 \* F$ P" vif (trade-record-one-j-l-len > 3)
; s( Q6 h, q$ `[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
3 { n4 L1 Q' R3 Clet i 38 ^) M5 r9 s$ j; A
let sum-time 03 l) f! U- g. ~' S2 I) w( P" ?( @8 y
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
n- r! |; Y* jset i o, F C3 f% _0 B
( i + 1)& X% b2 C: W8 ~1 _+ {4 E
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let credibility-i-j-l 0. V3 C! k) o3 B9 k
;;i评价(j对jl的评价)( I8 M+ F/ Y7 u# z
let j 3
B3 Q9 Y5 B- i% d# N8 dlet k 4
+ ?5 z; H: A5 v" X+ owhile[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
1 T0 H" d( T9 jset 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)
. N m8 W5 h: Gset j
' ]; Z9 u& o- B8 k" Z/ a( j + 1)- v) _% y6 g t% @
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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 ))% o3 K! _" T. P. B+ @
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))/ y) w! P; _1 F2 J- A' f G
;;及时更新i对l的评价质量的评价
/ \3 s/ p- s- n2 Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' s) ]5 p$ a! r/ L* [set l (l + 1)8 F# ?' d* g8 A, ?1 h' [
]! \0 K. l9 y" B. ^+ c' |
end7 z0 b& d' i' H7 }" f
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to update-credibility-list* h% P, E0 Y( K2 g
let i 0' n4 u+ a/ q# K# N5 D. U
while[i < people]8 ^5 V( U9 G' X
[. V" e. u, s% R% M( G0 |( ~; g
let j 0
1 [% @. ] g$ glet note 0$ U$ C1 K& S0 v! O( N( Y
let k 0 g- X0 X9 D* D y q
;;计作出过评价的邻居节点的数目% L. n; I X$ w
while[j < people]
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/ r; W; w5 N! Oif (item j( [credibility] of turtle (i + 1)) != -1)
( Y9 L$ j/ m1 g2 R;;判断是否给本turtle的评价质量做出过评价的节点
. q: O! M; r, O4 \$ H2 G[set note (note + item j ([credibility]of turtle (i + 1)))
1 r d. T, e1 q;;*(exp (-(people - 2)))/(people - 2))]/ }( q* O) u# v- g) f7 G# J
set k (k + 1)% W6 F. I; u+ G( F% @
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set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)3 m" h: T: c% F8 L. V
set credibility-list (replace-item i credibility-list note). n1 ~) b: h* l8 t" }: U5 A+ R
set i (i + 1)- C8 _4 n! d4 @" x1 R0 |
]
( j' ]8 b9 I1 o$ ^1 i' b$ yend- S d; j* P" d8 Q
1 H4 X& L$ E( d% A4 h; d$ ~. Q/ Z
to update-global-reputation-list6 O* c, H7 J7 J7 V. F: U
let j 0+ W! M3 n! R2 ]# I" U. g) v
while[j < people]
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let new 0) A, b0 ~, G+ p5 x' ?& p
;;暂存新的一个全局声誉8 f: \! U9 m: O8 _0 ?4 u; B
let i 0$ Q* \( {; N5 V
let sum-money 07 l7 N" r, A& X$ @ v! [5 m
let credibility-money 0
% R3 v0 n: E1 A5 ^+ _while [i < people]3 _! f2 k' C7 v% k( i
[
5 _& Q) P4 @$ ~( wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) P( j" o& ?, nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) W0 C- e7 t! L) i/ } d& Xset i (i + 1), p3 f, Z! n2 f
]
' |7 n, g" @% \: Blet k 0
3 X2 }) e8 p7 s4 Alet new1 0
$ J. W! H4 o$ C' q. `while [k < people]
$ w: ]5 Y/ |% T[0 R: T* I [0 k
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) K9 |6 c8 J2 f1 M0 ~
set k (k + 1)
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9 v- G; n# g, @) ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % u9 l6 L' _1 J1 F) i" L
set global-reputation-list (replace-item j global-reputation-list new)
0 {/ W" R' b% X2 @set j (j + 1)0 f: R, _6 r$ C0 B' \% f
], @. F3 E. A& r' Q2 G4 t& d% [$ X
end
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to get-color
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5 [9 S4 ]8 Q, G \7 s1 k/ ]$ @set color blue
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! J# g4 `; S( b4 R1 T, xto poll-class
2 _$ L# q" P g1 ~: f2 {- I( [3 Fend1 ~! {3 r7 p G6 `
. P- K& n( H5 R# `# ?to setup-plot1) X5 X& A3 ?7 j2 r, d6 r
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax- B. O) m1 I$ e6 Q3 H2 N3 |* L
end
% q! M* r9 f, d
" H0 T+ o$ f( z- Z6 _9 k$ B; _to setup-plot2: Z$ Q; h a ]# c# ~
3 m1 m* S c' p- ~ p% U0 R& Bset-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax
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3 Z- H' o8 r4 X" q4 ~7 X4 d b5 eset-plot-y-range 0.0 ymax
: V" B0 \4 z0 N0 gend! R6 q% z4 {+ O; q
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to setup-plot3+ T5 w" f! [" q% V0 F1 e
1 p; _1 j m8 o3 K. L( Z8 c4 Wset-current-plot "Trends-of-credibility"% g$ I/ h& x0 e% Y5 J
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set-plot-x-range 0 xmax0 ?1 u0 m9 b9 I' H" N
# \% a2 i. r: X
set-plot-y-range 0.0 ymax' q- _% F/ l# Y- K: n J
end1 S" ?) S4 j) X6 p3 U
" h4 K) g5 H# r, s7 o* ?to do-plots: T8 v4 h8 N' u, ^6 X3 i, j5 q6 k
set-current-plot "Trends-of-Local-reputation"+ q! f1 L$ h/ U% W/ q
set-current-plot-pen "Honest service"
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6 Z6 r7 A" A# S. c2 N! y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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