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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
7 e' j+ n% P: bglobals[
0 A f' Y- z2 u, K5 b& _xmax; g+ |; X9 Z* C7 ?* x5 _! N) L
ymax% |2 g b/ w7 s
global-reputation-list
" E B% f# E- I5 d* ~/ o+ [# B" Y" T
;;每一个turtle的全局声誉都存在此LIST中
* O/ ]7 y; h! B) m8 Ncredibility-list: g; H1 P$ A( q1 ~, H
;;每一个turtle的评价可信度
" R, E1 R7 b3 y' X! P3 t3 nhonest-service
9 K6 X, Z/ O3 @9 Yunhonest-service4 R' ?4 }# D# e; M
oscillation) m5 N, g2 F" K5 d# {) |
rand-dynamic5 y6 Z1 F1 N8 N% O# E4 l
]) k9 p( L& M4 r; ~& W6 C
$ F4 K5 W) M; ^8 L' Fturtles-own[
- _; j( r2 m c$ e4 @! gtrade-record-all/ h- ?, q7 p7 P, [: {, _
;;a list of lists,由trade-record-one组成9 U) O% ~' V5 H/ o7 |9 v
trade-record-one4 c j$ V5 B8 O6 i# Y1 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3 _) _& F1 N+ L$ H( \5 c
& k6 B( s7 n3 q; \ R8 E;;[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]]+ B$ f" G @$ j
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]
$ P) W% H. h+ ?5 X6 Ycredibility-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
* K0 X/ I& x+ S( W) G1 W3 `neighbor-total8 H, Y5 h+ b G* R+ u9 w
;;记录该turtle的邻居节点的数目
! {0 J4 H8 S# I6 i/ q! dtrade-time
0 e" v2 f$ X. z8 {. C0 y;;当前发生交易的turtle的交易时间
4 V' _. Z; e# `appraise-give0 M: X' ]! }6 c5 _ C P8 n
;;当前发生交易时给出的评价
% [* W2 c- X+ e( t7 u) rappraise-receive* Q% D, S. l$ x; l" s# Z) K7 g7 Z9 {
;;当前发生交易时收到的评价
) a+ H- e5 M6 j: N1 A, S5 L* kappraise-time
4 j0 E# |) N) E: ^8 h8 B1 c1 @;;当前发生交易时的评价时间
$ O( h* t2 B# v2 }4 u4 y ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, `, l6 r, F. B }2 _+ F
trade-times-total
3 u, N' L& ^& T0 ]( _. R' N/ U;;与当前turtle的交易总次数( a9 M* [, F& n* N- P
trade-money-total; [( \, X U, W, d3 U8 r, H- ^( ?% }
;;与当前turtle的交易总金额
0 c L/ u8 W& G4 n) mlocal-reputation
+ B3 O. Q3 B: s6 c z. q, z% _global-reputation
" V9 I h( @$ g: pcredibility7 F0 d" H; L3 N8 h- V
;;评价可信度,每次交易后都需要更新; y+ o7 o. s3 Y+ ?. ?/ H' c5 x
credibility-all2 X! w- c, e: h
;;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
; O2 _/ i, h+ F# b3 g/ C6 p; F! q X! e6 D% k
;;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0.53 ~" I* L( \& _/ `+ u: n
credibility-one
5 ?' Q# b) }, g4 z$ u% R;;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
0 ^) e' S" J( w Uglobal-proportion; ~2 U' G6 ~) c. P, p+ X' O
customer
/ Y" @* n1 P+ u' m8 ?customer-no4 n9 b0 J& w9 Z/ t4 q
trust-ok" Z6 ^9 T1 w1 F& o; I
trade-record-one-len;;trade-record-one的长度6 P, g/ c; c) f3 R
]
0 G7 f7 D+ l5 l* J ^" I' T6 e- _3 K+ }3 Y1 T
;;setup procedure( A& r: _* `! e8 T
9 [! f# A. [# J
to setup
, ] J% K# J. M* e( [% p2 L2 x4 q/ B
( M% ^9 O* d; x- X* b7 ica% M& }$ D& P& r# X
1 w5 l6 T# y9 E$ Z, n \& Pinitialize-settings8 V* y7 Y9 m( ~6 w3 f
. _3 D/ T# l% F* g, @6 \crt people [setup-turtles]- h: W) b. z8 ~% @
5 e8 G% R# Y; j) q# ~: S; hreset-timer
2 J; e: O; _% A/ d) r8 }
8 s/ B9 u8 }; mpoll-class& ^6 a( X9 Y- h# ]* B2 ?
7 V% R8 d$ m3 {' zsetup-plots
. g {2 u: q. c! h! F
' K% X; g" i6 L4 \2 O% }' K7 |do-plots' p7 z( L+ K3 L2 G1 x+ b& Z4 w+ e
end8 G$ J: j5 h" t t7 [; v: l
$ y6 u" M' n1 \: y4 u2 `to initialize-settings: H8 B" U- R" s8 P) f
$ \! q1 ` O. B5 F7 Q% T& j6 q
set global-reputation-list []1 a' S0 O0 q2 j6 p% ]
) M, M( e( m$ c4 {% f& l4 e8 J
set credibility-list n-values people [0.5]
& Y) U3 S" l8 |* o' E# a9 U. [
0 w0 T: ~2 j: i+ _0 n# |: h$ {set honest-service 0* O- T. R& C2 a; O
" U$ G' `$ P% N
set unhonest-service 00 ?, Q! |: ^, c. \
% @& Z4 f l. b! c! ?set oscillation 01 l; O5 S* l) T Q2 G' R: \
' e& i0 N" ?* aset rand-dynamic 0
# |2 `7 h$ Y. f p5 ^end9 I! X* a: B) C: `5 @5 C5 u: y' g# L
9 b- G. I* l1 F6 oto setup-turtles 5 F8 V! p% i! g+ i- v4 h
set shape "person"1 w( Z& W* [0 x. a
setxy random-xcor random-ycor/ v! S5 A7 x6 O: v* t; U
set trade-record-one []' }& O9 J Y& `1 e
6 M1 I, v, }' Y3 s) ?9 ^0 D( F
set trade-record-all n-values people [(list (? + 1) 0 0)] 4 d3 f5 |9 Z1 M( E
' Z/ @" t! M; f( hset trade-record-current []- m2 u& [% r! d7 Q' l& ^/ G: j9 I
set credibility-receive []6 V: j" ?) H2 r y6 C: h" x/ h. _
set local-reputation 0.5
; k9 m" x# a* `" Zset neighbor-total 0, s0 C- `" d( f) }1 [
set trade-times-total 0
3 _. ]: k. L0 t& w5 t- Uset trade-money-total 0
* A" `4 ~7 V% wset customer nobody
6 O8 P; k" u: ]$ P, L4 sset credibility-all n-values people [creat-credibility]& N& }0 o8 r0 H& J7 ^) p, \
set credibility n-values people [-1]% v) o# I: S8 C: c* _4 v/ y+ D# z
get-color
, U% q$ r) O' H
! v2 ]; Y0 q$ s( ?) l) O9 j1 K9 Rend! M% ]$ e) l e: W5 W
" d: d' F4 V* X" n) T! B$ H1 uto-report creat-credibility
4 X+ u8 x. \5 d& J4 U; Greport n-values people [0.5]
" U/ O- t3 M8 }4 H/ q8 Eend& {1 ^# q% ~0 W5 l, F
9 \) t1 a7 J3 G1 v. O. |
to setup-plots
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set xmax 30
7 }5 I3 b( u0 L" e4 q" E$ T
( N; l5 ^$ F% L6 @/ x/ Qset ymax 1.0
% W7 v- Z. \4 `3 @" B% V6 L' ^2 l: t" D T
clear-all-plots5 I: d( q- J2 R& ^. I. j3 w
* f! A8 I) {# q3 Z0 r, msetup-plot1
) p" ~. V3 S6 h8 ?& u! L& ]9 F* _! {* b3 v, O
setup-plot2
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setup-plot3
0 R% K5 K+ N2 ^end
: F' p4 V* T0 O! A0 G- \+ u6 x( N$ a4 y* V
;;run time procedures
5 {; p0 x4 e' g7 }& g1 \, V8 Z9 V5 Q/ X4 N8 `( o5 x
to go: K: y' `" o4 {9 {
- Q4 H/ e+ x; a2 B2 T0 T
ask turtles [do-business]1 K+ ]7 |3 O8 `6 K. j
end: T! E# N; n6 ^# S5 X' C- S7 ]
0 C8 I3 [: r. s' k7 l5 ]' c
to do-business : Z/ r, {; T! W0 t" @% x4 V) e
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! t: Q' K5 z6 v/ Y' t+ q- {rt random 360' K0 U0 x/ m. i. ^. O G
# s/ e/ a. B( S
fd 1! Y; L) V5 i3 u5 K1 K( v
" l" G" C( b- `3 H
ifelse(other turtles-here != nobody)[
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, \5 w# I; V' j' c' `set customer one-of other turtles-here* |9 X, \- M9 \
9 r0 k& p' v- t& x+ x* y, m;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
/ u, w$ F) I" r: M. C2 F1 O[trade-record-all]of self; j j9 r s) i' t6 q# ]" ~6 t
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 _4 i. |: {, e, P. S
3 A& _% E4 O! o9 H% V% gset [trade-record-one] of customer item (([who] of self) - 1)# r/ z9 \: }2 M4 A5 \5 s- I; X" P, z
[trade-record-all]of customer8 q) G$ J. Z8 M, k4 s% q' ?4 K
& y% r5 a4 y. Q7 Tset [trade-record-one-len] of self length [trade-record-one] of self0 e$ X1 R6 y1 F7 m- j
% I" }; |# }+ s- i2 G6 n! y9 b5 Zset trade-record-current( list (timer) (random money-upper-limit))1 I+ l8 ]7 ]* R6 P2 r5 M- O
: |& C" o+ [# R8 kask self [do-trust]7 g! J0 ]4 H5 J5 o+ `
;;先求i对j的信任度' Y+ ^' ?, Z6 `( m
+ i _& ?8 }+ e# d( i" Q) p+ w" Iif ([trust-ok] of self)7 r; }2 o& I0 [0 w2 Y
;;根据i对j的信任度来决定是否与j进行交易[
' O% |- A& c% T" y5 Kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* X# \- [7 }4 o4 \2 t* ~7 u6 Q
4 n$ i+ O* g3 [0 Y' S7 W3 u
[
) H6 t) G5 b" W3 f9 F) z. r
- S3 [. D0 W% _: O g1 kdo-trade
% `8 q8 Z, C! w2 z
% X8 ?2 I9 E- j. nupdate-credibility-ijl% L4 u2 e3 ?8 e( _- J
/ V; c& I4 ?3 S' G
update-credibility-list- T1 Z! m0 s# j+ f# c! c+ d
% ~; M) J2 m" k# @( O6 F
; l" s( R) V: ^# c) S% o, Rupdate-global-reputation-list
2 s8 F5 a4 M% p- w3 J
. S# l0 C! N" y' S9 R5 J$ Rpoll-class+ Z: }+ m2 y! L3 B
/ K9 \( S# ?& b
get-color% U- [! }+ M/ F4 }- b
6 N1 M) T! s' O8 v9 F
]]' d0 r: X* F( P9 P
! X$ l1 ]+ W( i- X! ?;;如果所得的信任度满足条件,则进行交易4 ?0 d$ I* ?, V/ L3 y$ j, t
/ o2 S( e2 j7 v3 K+ f
[& D3 F; Q4 m R. z, `; `* j
7 @" ~& |# w6 s9 {$ a. L
rt random 360
) v5 x# u; X3 }6 F d) W* E) o# T2 Y7 i7 D4 ]- m: k
fd 1
! }& u6 L( p0 m2 `8 d" |
: q7 |3 `: N2 R]
0 D% T3 M! k$ P8 a2 D m' q
& G. S% X( B' r0 |end
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3 i; ^$ X+ V7 } t9 ~, `to do-trust * N; D% c$ F9 q; |, ?
set trust-ok False
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let max-trade-times 0, k. j# c- a" w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( [* w+ y( \- Q u) {( N: w4 x! E- K: l- _let max-trade-money 0( Q5 b, Q N. R
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 ]. H" {# @& @/ r7 Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) u3 h8 \6 W& C; Z) o% ?& L( r4 G
( ~5 c, ^! |4 F
6 ]0 `& C% A" ~! K% P( F: @
get-global-proportion
% ^: z9 g9 c7 D' blet trust-value+ j+ z! c" R( `6 v" K5 A5 g
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)
0 o' P4 n0 q. m/ n$ Y) g# a% Yif(trust-value > trade-trust-value)9 e4 a1 M0 {3 @+ m6 y8 ]1 @
[set trust-ok true]! o4 D* O! g4 u; t- P
end
# D/ v3 o' v" d% P. i! s( Y0 b1 {: q9 M& I5 K6 s
to get-global-proportion; U$ \" k2 Z+ m! C/ o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 A/ m7 ^0 m* g% F3 _# P2 P e, o4 k[set global-proportion 0]
0 u, C/ m. e$ I/ ~[let i 0
; Y7 {0 x: ?2 Z0 @+ g& `4 Ilet sum-money 07 T7 ~3 e) \1 t+ r8 x$ ?) n
while[ i < people]
; t" ^# b Z8 W+ n( n" e[
/ q! d2 V% N# e% n5 c, l7 |if( length (item i
" G6 e) `) O$ S, j7 s8 ?) u[trade-record-all] of customer) > 3 )
, v. T, Q: h3 s[
Z. g. d# a6 T' A3 h/ k: N0 |# d5 eset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): ?/ v! R$ m& E/ x/ s# O9 v0 W
]3 \' ?" Q+ A0 L9 K& l$ C- u
]
; z! D: y O0 E) i8 Z" \: K$ r' e' m# ]let j 0
+ i5 R" G* W, e M* D$ _# Xlet note 06 k6 v2 E, \* G
while[ j < people]; S1 n4 W' m9 z8 z+ O$ ]8 K
[
$ x+ j# [# D" x: Cif( length (item i
) e. x; n" R& r$ _[trade-record-all] of customer) > 3 )5 r' M, H5 ]: @8 w8 e* f& S) D6 y
[
* B- j4 B" }. ?! J7 M& o$ _ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ N v: f7 i# f0 H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# x h B( k9 A' b! _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 ~) W0 u- e6 w# Q% [
], H% Z/ o* X6 q
]
1 R5 T# K- F( e5 n7 C n" M' ?3 iset global-proportion note
) W' G g- k4 g4 v+ w9 g3 R]
( J- k2 V( c7 K0 R; P- O9 R. @end
! K1 u# o, `" P+ e1 _
/ g# y$ o9 K1 l1 U, ^2 bto do-trade- }8 Z- U: H4 F. Y7 ?/ c
;;这个过程实际上是给双方作出评价的过程
8 K& j! ^) K" x2 p/ Y0 Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! c9 x. D1 J. _/ kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) d6 f2 W5 ?# ]8 @0 s
set trade-record-current lput(timer) trade-record-current
0 Z! t9 \$ q$ e6 g, R$ t;;评价时间4 I) y8 i9 c& D1 P% |; P- r4 {
ask myself [/ S9 g1 C6 _8 @: S
update-local-reputation# g, x+ {; |- V: x
set trade-record-current lput([local-reputation] of myself) trade-record-current$ b) T$ u/ ]8 S' V3 D% D
]8 J2 _+ N* l9 H* O2 m" N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; O$ i. G* N$ O8 v7 a
;;将此次交易的记录加入到trade-record-one中
q) V O1 n! H# f, Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ z- l/ [1 ]4 w9 o k8 U- l. F
let note (item 2 trade-record-current )
; A% @. Z7 a7 b Sset trade-record-current, S( W9 l6 X9 X( w
(replace-item 2 trade-record-current (item 3 trade-record-current))" i; ^0 ~* W* J+ H: E3 S
set trade-record-current0 v$ o9 l M9 h& D4 T6 A% D y) q
(replace-item 3 trade-record-current note)+ c" b: @( I! [9 }4 Z- f* x
7 M. a5 g6 N' N2 f0 n* \7 n
4 S, f' F) v2 O( g0 h. _: P5 Qask customer [
* b7 ^2 P; G8 |# w' S7 l! k } uupdate-local-reputation
" M1 X. F2 N, k2 I7 Nset trade-record-current: {. B7 Q# \( j7 X- z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 q9 T- _& @; I
]: \, m$ ]! q7 m5 e: Z& b) A6 O% W7 H
# e5 @0 q F- \8 V5 ]& U u: ^4 R/ C1 ^3 k* n' F% N9 E1 H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( }- F6 i* V i' d/ M- D o: g
1 {* I* \- q h' [ c+ b4 uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 Y$ b6 q. ?/ c1 J( s' M% ];;将此次交易的记录加入到customer的trade-record-all中
% | P3 X' ~. B2 F4 G- Kend7 h) ^* |& \7 c& I0 d! T9 u2 H
2 i! Y$ T W3 ?/ |
to update-local-reputation
3 @+ ~/ M1 ^& d/ Z, ?5 Dset [trade-record-one-len] of myself length [trade-record-one] of myself+ N- ]: I2 ^; z9 \4 t" x
; D# d) m- n; |; z# T
+ O" C4 P, s! M7 {4 `" _) G;;if [trade-record-one-len] of myself > 3
+ s6 W5 A- o/ p$ z' s1 eupdate-neighbor-total
$ Q( Y5 Y# ~* f;;更新邻居节点的数目,在此进行3 k8 p7 X$ N) n$ D7 g2 r
let i 3
& z- a1 @* P. x9 a" [let sum-time 0
s. h5 z( P6 l f( }3 _while[i < [trade-record-one-len] of myself], S% `8 Z. Y3 h+ _" q o
[! `6 w) l" o, J1 v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" r, M& z7 [7 [- Q' y# J8 Oset i
% _# W% S' w, i; |& T) u( i + 1)
e6 D" H' m. F]
; J' _% d9 U9 V l! D- \let j 3
& o7 @( V" ?. n& b# ~$ m' D U$ Klet sum-money 04 l; l. L/ f' i
while[j < [trade-record-one-len] of myself]+ @. e* l: [( h
[
. F: [ p2 {+ t$ T( n( Y, jset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
5 [3 P9 d4 l1 {& Dset j7 U7 v" d7 ]1 c1 a- M# u
( j + 1)
}3 n: A4 n6 T]. s5 v( P& e# K; D
let k 3$ ^( q) b1 [: O! F* q
let power 0
$ M0 N/ I+ \+ Q- B9 ?7 W2 d7 rlet local 0 D+ w- f0 Y/ Z. g7 o6 y
while [k <[trade-record-one-len] of myself]& x1 @! x" W5 f4 ~( S
[
# Q9 n0 \# ^& x+ [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) ( L0 X5 L. I' k* D$ E6 |, q
set k (k + 1)" W9 a" O0 J! x$ ^( @" Z
]; }4 H: }) ?4 A& X0 y7 t7 F
set [local-reputation] of myself (local)
- {4 z+ b, E8 `) o5 u Bend
; `3 ^% ]$ d7 |) ~5 k$ H$ F* `+ @: E F1 s8 o8 a: k, e
to update-neighbor-total6 w: m l# \. Q5 Q' I# j
9 b0 U1 v' | X3 L* z/ r3 u; \0 E( H/ F
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) `7 j% p, L$ C& v% B
3 J! T, W% N; H" e" w/ t) K/ h: ?2 `
end. F9 I( M: o. e) X, S
+ l: j3 S% k. ]! T+ I. {
to update-credibility-ijl
" _( |$ k( T( A c# D2 `
& w8 Z/ e! ]4 i2 N+ C;;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。
/ g- y* I4 Z8 j9 w+ s# q: I: ]let l 0
& |8 h8 s$ Q. ~/ T; f5 jwhile[ l < people ]9 z% H Q$ s! n. I* N& d
;;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' A2 z: \" y* B! M+ L: @; B
[
( }6 t" a* [6 ?2 W" @let trade-record-one-j-l-len length item l ([trade-record-all] of customer). J+ @! e' f7 w
if (trade-record-one-j-l-len > 3)
0 F9 j) o- R+ b! P. ^5 X% c[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-one0 C4 _/ s7 k* S( j. \& O9 J+ R
let i 3
0 Z& c: q8 f4 c* t+ v% G4 J& p* y$ {8 ^let sum-time 06 g# d) s+ C( W) Z" ^# @
while[i < trade-record-one-len]
& i" U: i! T- k5 |! {[
, T+ |# C* R4 Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& r: V: a. ~: ]2 h! O @( ]
set i) q" r4 K4 W8 q/ p3 t5 c) v8 Z
( i + 1)' A/ _5 V9 N4 n8 w( ^
]+ L) G! H2 |) ]4 N: A, F
let credibility-i-j-l 0, @; g; P. }# f7 j, a- N
;;i评价(j对jl的评价)
' Y1 Z, C- l! O6 G6 rlet j 32 p3 S2 f7 [2 C# W0 |
let k 4
; [7 [3 U7 s6 L2 I( iwhile[j < trade-record-one-len]
; A0 v6 q* s% ^ n/ X[- o% y7 y/ `6 g! o9 _+ h0 J: R
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) ~2 b G7 A# t2 g& D! ~
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)
) r& s% r# K5 [( `( I+ d7 d4 Fset j; l3 q9 N. q/ Z: y m4 g: p' g
( j + 1)8 _/ s8 J, y0 N) Y- S
]
5 _+ m+ w( n- G1 Rset [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 ))2 D5 _! o4 ^5 Y) ~! A0 ]
8 A# |' K z" g
; ^0 v- E) R: l( Q# llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 Z$ ?9 c, m: S$ };;及时更新i对l的评价质量的评价, ~ Y% v* p- i4 ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; m: i' ]6 V1 c5 u; u# Uset l (l + 1)3 y3 v& P9 k9 w5 S
]
! N7 ]1 B3 D* `. i- L. Fend4 Q( }2 J! u! X+ D F
! f; I+ |! g. [, h3 Q
to update-credibility-list+ _# D$ N% l" P& P- Z
let i 0% P. g0 g2 X0 ^4 A; A
while[i < people], z" Q5 b g' _7 ` O
[
) q) O. h6 R& C! slet j 0
' k' l Q `+ E6 c- U3 {, \' A4 Y6 Clet note 0* p+ K ~. q3 b2 o6 D5 N4 h
let k 0
( N; P! _$ a: c6 u3 t# n* t;;计作出过评价的邻居节点的数目
$ h, S+ x% s( [: ?5 U) K: u/ lwhile[j < people]
0 v2 k, e: w$ D, A! m! V[% L/ r0 u* L7 d: P4 v3 D) C) U! _
if (item j( [credibility] of turtle (i + 1)) != -1)
6 K3 I; v& ]- D;;判断是否给本turtle的评价质量做出过评价的节点+ H* s9 {4 D% w0 k3 p
[set note (note + item j ([credibility]of turtle (i + 1)))& x! p, k! x" H! V" e; Z
;;*(exp (-(people - 2)))/(people - 2))] g1 i8 e( q9 |" j, b( y O- U
set k (k + 1)$ d' _' J3 ]* h- c
]
9 Q: j! [1 K. N9 s1 Q4 }/ I+ q0 Kset j (j + 1); H0 f" @% A) ?+ u5 U, [2 a {0 `
]
+ S: n' k( q" f2 Pset note (note *(exp (- (1 / k)))/ k)
# }, u8 t; t; e3 m4 J2 ~* U6 Kset credibility-list (replace-item i credibility-list note)
% m4 p0 k2 q! l8 y5 L& pset i (i + 1), a4 ], L0 ^5 D9 J+ e" b
]+ r9 A" O" {# ~3 F
end; s, n0 W, g5 Y- T# B: [
: Y7 x: M2 U4 J0 hto update-global-reputation-list
7 w, A7 ~0 u, X- V) `. G6 }" K) `5 Vlet j 0. H8 J( |4 ?8 k, m
while[j < people]
) u! Y2 N0 }5 k, l' s: `[& w$ l2 x# `( Z9 D
let new 0
1 R l' H1 [* ?;;暂存新的一个全局声誉
6 I. Z* L$ l0 O- F4 d1 Q& K0 plet i 0 N+ U3 h7 K0 A% R" p
let sum-money 0
9 c9 G4 r6 _0 H( z6 A3 ]/ elet credibility-money 0! m, |; X$ f; C& T5 Z8 i
while [i < people]: s d, m# x6 p( T* c
[. {" P/ V0 n" r- D
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 {$ J& X+ L* c# n. N/ F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! |# S. C) G+ U/ y$ n
set i (i + 1)5 g" R g! C/ K+ S# \2 U. t
]: q' C9 B/ h7 a7 v3 j
let k 0
3 H& v4 @- }& Flet new1 0
' m) D. B8 \ V6 p0 Qwhile [k < people] z' I" d" F9 n3 o" R; r4 n
[( G" H) D3 E1 ?
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)) E9 x5 _1 P8 |
set k (k + 1)
z G& |: q3 w4 \( ^]
$ c9 n* I1 ^% Q3 C) sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 F1 }( `1 ]% p5 m
set global-reputation-list (replace-item j global-reputation-list new)9 t w8 K; @! i! {
set j (j + 1)* ` U2 r2 J* d s, {5 w+ ?
]) p- {" l# o% @; q, s
end
Q, _& s" Z, {* N0 k* Q* k) }: B1 x6 _
2 V6 f1 j: G7 K
4 z" j' B' _! y/ }) N Q
to get-color
9 P, ^ [5 S% B2 {
: k$ I7 e$ C" V1 e! P* T+ A( @set color blue
1 O {, q/ d& L( }5 cend
5 A$ w$ v/ Q4 m7 o7 d$ Z$ A( k' p+ S! ]: u! J+ c1 U( c8 d" d
to poll-class- w5 M) ~6 k# {
end
. b8 M4 w& B. G% w# L# N9 {% D
. [, Y! D `; H8 eto setup-plot18 S7 }0 Y7 ?+ b5 w7 \' V
- A5 E" Z. G/ _3 r: y8 W
set-current-plot "Trends-of-Local-reputation"( C; l1 O! N" _
) D9 m$ N0 w( }! T# L* t3 v9 b* D3 w" Wset-plot-x-range 0 xmax8 ?$ E: y+ f; t( P. B% O9 C
5 m v! o0 n, `( m/ D8 Nset-plot-y-range 0.0 ymax
$ b5 {' Q" u% {! e2 Q( \end: b+ q! S* z8 u
* X! a) h7 \% ?3 g( Eto setup-plot2& X, W# c9 g1 g+ {
* r- D" x! g0 @' J- p) y6 D: b
set-current-plot "Trends-of-global-reputation"- o8 f$ W$ b j& M# |. g; T( U% V
( R/ N5 w2 G' ^" nset-plot-x-range 0 xmax1 ~/ t& R. c/ _4 @ b7 B2 G6 b
( O( _/ u, R, i( z: R
set-plot-y-range 0.0 ymax
: I q# L6 R, h; ~! a1 f; D! Z6 T3 J# kend
! I' x% ]& N2 k4 }$ D1 D; M' H
0 p( M7 U7 X6 g! l9 }$ gto setup-plot3
* C$ W: |+ w1 l
+ [! I( u4 `4 o- m* wset-current-plot "Trends-of-credibility"
4 B; j( q$ Y9 J: x' z, {, [/ D# k6 g% g5 |: S# C( w
set-plot-x-range 0 xmax) d! j$ y' p2 G
% X% d G6 \& }4 B- J# Cset-plot-y-range 0.0 ymax
- L. Y, @4 H% C# Z: Hend5 h+ z3 v3 [1 I* q' I* X2 z; t5 h
' G% h+ n- W5 u: o$ O. ~to do-plots2 E: P" \9 v2 g) `1 S% \8 f# y
set-current-plot "Trends-of-Local-reputation"
5 \' G' V) }/ X- b; Iset-current-plot-pen "Honest service"
+ j" _; J v4 H4 `7 nend
1 j' \4 J) Q6 E$ _' H6 H" m! ~
o5 j V/ v) V, C9 B+ B[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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