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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
& M: N3 o( }) ]2 h2 Jglobals[
' P2 b3 F* i/ p8 w7 k) t9 bxmax
' A6 [8 M8 o1 e+ h( C q: ]ymax
7 ^8 ^+ j: K4 B) x6 _* Hglobal-reputation-list
3 \: C( v, a F6 W& ^1 n& a1 p/ }; [
;;每一个turtle的全局声誉都存在此LIST中- F+ {9 J* w- X) j7 P( g) q
credibility-list
6 U! k0 l2 E, J6 q6 D4 y4 u, E7 ]5 j1 v;;每一个turtle的评价可信度
0 n8 C0 g& \+ s) ]9 Chonest-service
# o: E, i/ r( u" ?4 |unhonest-service
* O* O9 ]4 F- v9 d" P: }% boscillation
+ {: U4 ?; E5 y L2 }9 H* erand-dynamic( E' e Z! H2 a( C# C" R
]* D2 I- J* g1 `, C" n. O9 `2 S
0 k/ c+ i3 V( e0 [4 \2 v
turtles-own[- \! Z% v- O0 L3 {( k" N
trade-record-all
+ Q$ W9 C% _# u/ O( S* Z9 g;;a list of lists,由trade-record-one组成, M, [ o. p- m3 c/ R
trade-record-one# L h7 |7 x6 P# p0 k
;;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 j1 _( e1 Z+ u: g0 @, O
, [2 J) R. @2 o5 K8 d;;[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]]
9 R X$ j8 v/ J V. Ntrade-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]
3 W2 G& g, Y& V6 y8 [- x1 Kcredibility-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, x6 N$ m+ t, }+ u
neighbor-total, u, g( E9 b7 j) J
;;记录该turtle的邻居节点的数目
! L+ a: B) f9 s$ xtrade-time8 P, S+ H0 _0 w0 c* a4 F
;;当前发生交易的turtle的交易时间
" b# r: w* j) S5 [ {5 tappraise-give
1 T% z% c. ~/ ?& I! Q2 L n;;当前发生交易时给出的评价1 \4 d5 I; n7 T6 E q2 ^5 s
appraise-receive0 I9 J; s* T( z! m
;;当前发生交易时收到的评价: ], N/ v- H" G6 \. ?6 c/ Y
appraise-time2 [6 z6 `0 _" Q( t
;;当前发生交易时的评价时间
+ W+ |+ ] G9 k, X7 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 F7 i" S, k; ?# y+ Gtrade-times-total2 L6 \3 w% K$ L: H
;;与当前turtle的交易总次数: `0 t7 v( m! h. x3 ?$ g+ d/ B5 ~
trade-money-total
8 v9 w, ~+ x, F0 z& a;;与当前turtle的交易总金额
3 d1 E! R' h2 Q3 Klocal-reputation
% j+ k( z8 y% U' x; @3 ?global-reputation
$ q w) M, Q7 u, l8 Acredibility
* ?9 `6 V, N& x6 V;;评价可信度,每次交易后都需要更新
$ A# h7 y& S) x) S9 H/ A5 M2 Wcredibility-all" {6 _- @( d9 p P% n
;;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) ~, Y. J3 A/ S; \: w
4 _* U6 Q8 A3 P1 }7 H- g; };;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
& H& y0 C; S' V3 G& u# Scredibility-one
9 C0 R0 v. a4 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
: F9 R4 W$ f2 Jglobal-proportion( H. k, q- y' J; q) l* K! W, n d# m
customer4 W* c3 {& h# w4 _" H# g* o% l
customer-no
( e0 y7 w# T7 ztrust-ok3 g6 A8 F8 A9 F
trade-record-one-len;;trade-record-one的长度
3 ~: z0 }' }: y; E8 M]
1 E( u7 l1 ~8 | Q
4 g% T: S# \' T1 W; {. ~;;setup procedure/ C1 S @: n4 m( W
; Y. G H. S, R* dto setup7 Z9 b! u$ J2 l
" L$ [- m3 H: J
ca% Z. y) g' ^9 a o
9 R% d( |2 d8 I0 ?$ K& m. t
initialize-settings
, Y t0 S2 ?8 v, Q( k: [1 i2 L1 l) e" I3 i6 P8 G; s1 V6 h5 F, x
crt people [setup-turtles]
( ~8 }( \7 a. K4 F3 }! G
Z0 [6 D9 a- w7 p' [5 {3 Z: J, Lreset-timer
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poll-class
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- h5 @7 u8 q1 g% Dsetup-plots
* G4 y4 G* |) r( m# ^* B
4 y8 \4 x/ n+ n2 Z: F1 }5 w+ Ydo-plots
% M$ E: Y4 |+ Mend6 y3 k7 U( [/ P( C& C% _9 \( ?1 @
0 Q$ \0 x8 F/ ]2 L' A( |
to initialize-settings
( r- d9 @4 S' [ s, [% {
- p, G# Y2 s! a* h0 a- tset global-reputation-list []
$ _2 L4 [' B3 B3 w: J+ \; S8 |/ J" a* ~
set credibility-list n-values people [0.5]" G5 I# r9 j3 F2 j
, b0 v# ^* Y z% ^
set honest-service 02 o' ~1 O/ x8 P$ a! I- v
% N+ l1 x( F& S \$ `9 oset unhonest-service 0
2 w4 Q, l" X2 H) e. K
/ K' v7 O/ r5 G/ vset oscillation 0
9 W' p, h' h8 y6 G
2 {' v5 n. z# y/ ?5 r; Vset rand-dynamic 0
% o" D& l0 R4 h# D) S Bend
3 K, l) f# R' i3 ^+ L
1 a9 q D2 D9 e6 d% jto setup-turtles
F {! N! b. d+ jset shape "person"
; ]' S4 P8 M* j0 ]setxy random-xcor random-ycor- s n" i2 G$ F/ A
set trade-record-one []
3 |5 R' l3 g1 m2 D( {0 G8 `( W; `6 k* j
set trade-record-all n-values people [(list (? + 1) 0 0)] 2 Y( J4 l, J/ D. b% N% h
; ~8 k4 T+ E/ Q4 ?+ dset trade-record-current []0 r/ z$ E% H+ L( R0 P* D h, Z0 a
set credibility-receive []9 U/ m2 d8 `$ a
set local-reputation 0.5
+ ?. F' }4 X( H% Dset neighbor-total 0
) K+ D+ |1 ?! }- dset trade-times-total 0
: W/ v) i- W6 z0 r# \+ w: M4 V+ b8 iset trade-money-total 0
+ y: K- E) M9 T% p, e9 ]' j% b/ `set customer nobody' E( r$ S0 _+ _! Z
set credibility-all n-values people [creat-credibility]' N; d4 E6 ?2 j1 D
set credibility n-values people [-1]- p! t( {. N0 L1 P6 e& a/ A
get-color0 b& `/ k/ r6 }% i
& d1 N. p- w. k K$ Nend: p) [ c7 Y+ C* f) D
; T- @4 T( V* U0 ?. B1 kto-report creat-credibility
1 x$ l: f4 \* ~7 }2 ^% G3 h! ?( y# Yreport n-values people [0.5]/ j. i6 E( A' d% h; ]4 x
end
$ ]5 r" Q' c9 C$ Z2 S
0 O. w B$ N2 Y9 zto setup-plots
2 }. D+ R. g) d( W- ?1 Z
! Y3 W, z" w. g1 M5 G8 N( Q n, w" iset xmax 300 j+ p g; s' r% {- H9 F) {+ e `
4 j2 P: E8 i1 Vset ymax 1.0
4 Q" H- C" `( ?/ j+ i6 x0 s9 P0 Q3 N, B
clear-all-plots8 j' d& ^: N5 f& k' c* l
& W& e1 G3 a1 usetup-plot1, t% M: [& b+ i6 ~+ j
& f3 h7 |, P/ x, E7 K/ X- n1 g
setup-plot2, f! m- k: ^$ j. n9 O; \
) b$ S" c8 `7 @, `+ Q6 S0 dsetup-plot3
; A9 k4 n2 R& [end
, i5 ]" k$ a" A. k9 J$ @, F' @6 y& f( @6 E2 N6 q" Y! F8 [
;;run time procedures
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4 R6 q. P y7 s3 R& Vto go
! R g* ?6 I7 ]9 R: A% j% P7 B0 X8 f; V9 H3 z& H" }: i7 K% q' w
ask turtles [do-business]
# |$ W* S- k' z5 t1 X5 \( M1 z2 vend( a2 c7 P( U: Y: X; g; F: N4 n; c( R
: T' l% d S1 s6 Z# Jto do-business
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% l5 q- ? N9 }& t; w( _; Irt random 360
6 @* L6 ]* O: r( U9 Z+ d: v3 ~. j4 ?# M M6 j2 R( i
fd 1
4 k/ b5 \$ v) H0 _! @6 d. o" k o& c, M, o% c
ifelse(other turtles-here != nobody)[
* r h1 V6 a2 A" O% h/ n5 z2 V7 `' ^; t* R
set customer one-of other turtles-here
/ f x2 N% M3 x8 ?3 I: O! v9 \
+ F# H1 d! ?1 v+ f+ ?;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
) B0 |3 s& A4 @1 X. f q- Z! M5 p[trade-record-all]of self0 i2 X" m, X: U7 v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# x/ p0 o) e- i+ X% D/ v
* b9 C+ s# V& s) J) f+ {5 ~set [trade-record-one] of customer item (([who] of self) - 1)
* v+ K" \9 x8 K1 n[trade-record-all]of customer- I* g0 H- d* B# W) n' i( `
M5 m2 _; `) t' ]7 c
set [trade-record-one-len] of self length [trade-record-one] of self
: E9 U3 V# K9 A, i5 K2 d7 r+ A1 Z7 Y0 {% i5 z8 G% G, I
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
1 s# a+ |, X6 v, w( ^ T- m;;先求i对j的信任度
" e4 I, ?( s0 i# j9 L" Q" t3 i4 e) T1 }: T) v
if ([trust-ok] of self)5 \- g) L3 e. c# X; b
;;根据i对j的信任度来决定是否与j进行交易[
+ T% H4 b( h- I5 V$ q; gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
/ p0 i1 q4 ?4 V0 r' }: t
- N2 q; J4 m" Y. Cdo-trade
7 G6 Q8 C# ?- G1 `! U) i7 z# L' V2 s3 p3 h; A
update-credibility-ijl: Y3 R: L. K% U* u9 G
0 c: G" `$ t$ l' F2 nupdate-credibility-list8 }; f4 f' L8 O
9 G2 Z- k. `% v
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update-global-reputation-list
; G& ~. B6 q% U9 a' a# w/ |
3 q6 c& C) ^5 z' B. n6 W2 _- vpoll-class
- }5 L Z$ ^5 O" _; M
! F/ p" u C# r9 |' F- jget-color; F* \8 P. F3 W& t( f1 F# l! E
- I) ?7 R8 y& Y9 { U
]]
! @/ Z8 f& o8 R) `* T4 Z( L+ E
- v- a& t0 v5 \& c) e1 Y$ d;;如果所得的信任度满足条件,则进行交易# o) u2 _& @5 e7 _9 T
4 A5 R6 q' [; N# h- l[
& d3 s6 c& b$ [% g$ b/ h; ^; _/ l% p; y8 j6 l: G4 s4 C
rt random 360# q% R0 V, Q) R4 J) @
* i* `8 s8 d8 W( V; W; l. qfd 1& `, k8 X8 Y& b, f2 ~. L, a
* G5 v3 _" `3 _, y, a' A]+ d0 E/ B- l4 }8 x: i N7 J% X t
6 P0 \$ Q) Z& V( x; V. o& _end
; a+ g% T+ `+ N7 D1 B/ _2 o& t( X9 e" [6 [1 R0 V1 q1 K" \- S" M r$ G
to do-trust
7 S6 E" q( D. O' g% yset trust-ok False* K9 C Z* [: {6 t
0 R( Y2 n" _3 g, C, z% z# U) x: ^1 Z$ E$ o% J- i
let max-trade-times 0
& o% i) L# c6 Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 p6 v3 [ |: V* D3 r
let max-trade-money 0
! [+ \3 N4 I/ F, i. E1 Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 S$ Z# b9 A7 vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ R5 {0 X6 I" `7 Q) [$ l
" E( p! Q/ f1 T3 @* V
, E! R6 ]+ h8 A% ]' {$ y$ e$ Sget-global-proportion
$ s. C: S2 x# u6 F- r' K7 jlet trust-value
+ x0 l! @& M: h8 W 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)* b% I+ w+ \6 P; @
if(trust-value > trade-trust-value)
?; p& R# E6 g( l) k& F3 |[set trust-ok true]$ v. q+ e1 V5 n; A9 N
end
! U E& ^* Q. s! H: C6 ?8 C1 A, O
9 E/ C, L7 I ]7 d! c$ Nto get-global-proportion
. I) k, p9 K) B$ cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). S5 X& V' X+ o; _1 c$ ?* [* p$ _
[set global-proportion 0]' n2 D' @- b k
[let i 0
$ ]5 _* n/ g/ ]* S; Glet sum-money 0
% T% _# b+ P. x2 ]9 Kwhile[ i < people]
1 x6 R4 j7 i- O6 d. w[: d4 I. v6 N& v k- p/ G
if( length (item i
3 X: ^7 W$ U2 r( P6 s6 L[trade-record-all] of customer) > 3 )
1 G0 o1 D: ^. i- K' i[
# i* U& A- j- S9 Z6 q' t* d0 Hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) F/ l' J% P/ x, s]
, E1 E* f+ _1 i$ b" W0 m5 Z, G]3 Z* k; n& D7 g7 N1 u
let j 07 D2 B' b6 K- Y
let note 0
7 ]2 X! {) s Cwhile[ j < people]* i0 j/ H: B) M4 a8 j! n
[! D7 l( P1 m0 e: q
if( length (item i. q* g& Q) N3 K8 I( F) v
[trade-record-all] of customer) > 3 )" U+ Y7 k! I8 P6 ]
[
+ w4 p+ ?- e7 r8 k4 M2 Y9 }ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* o* ^1 P5 k* R( q7 d/ ~( v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% ?( @) E) o e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' q+ b! e6 a! A9 P4 R/ S
]3 ?/ z3 ]% Q8 j0 Y
]+ |! V0 E: x4 A' q/ M
set global-proportion note
$ ]2 w, B! E- |. j9 r7 n, K" P4 |]
& ?5 T* V" f. M' e( N- d q& j$ oend
8 W M, [8 X% l# r
1 P1 N* e7 k$ Q( eto do-trade
5 f/ [. N/ t: R' @# ^;;这个过程实际上是给双方作出评价的过程
6 O- x3 e8 L1 m$ ~( u, Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 F+ X( u2 V: U3 P5 H3 L- U3 u7 z: u4 I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# G5 l, Y/ j6 x( z+ R5 L
set trade-record-current lput(timer) trade-record-current: W8 D- ~8 q0 p f- s/ t8 {3 d/ G$ b$ X
;;评价时间
( A- X {, z0 r/ Q/ U: W+ nask myself [
6 S& |, L+ U7 ]. w) n$ V! Xupdate-local-reputation- q4 n7 ?- K* y* t% Q8 U
set trade-record-current lput([local-reputation] of myself) trade-record-current% I `: E- u+ y0 m/ _
]% z$ a5 Y$ I+ U: s' j% J/ H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; \/ @( x5 }* R& {: ^
;;将此次交易的记录加入到trade-record-one中
* B/ ?. M1 A% m5 [2 Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( r1 L; q9 u% k
let note (item 2 trade-record-current )+ K' a& o- |, }1 k
set trade-record-current
& v, T6 f: R( l(replace-item 2 trade-record-current (item 3 trade-record-current)) J% U" I8 A4 ~1 t X
set trade-record-current& t3 A0 u7 A, o/ c: \1 r0 \
(replace-item 3 trade-record-current note)5 R) _3 |: X# y* V2 V X
% Q, d6 ^' L- |4 Y- G: S5 K" \$ l4 R X& k2 k
ask customer [
( S; |5 |* V9 rupdate-local-reputation$ I( G. d( ^, h; ?
set trade-record-current' `; K/ ~- F0 F: E% r
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 c6 z. P* q5 x$ n3 K) j3 L' @0 ]]
# D& M6 l N- z6 r5 ~
" S5 G8 N% l! ?+ M' E7 u* ~
' Z: y J2 o/ Fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# F$ Q' E6 ^$ C
/ t) G# l# d/ V" X" j1 n2 f
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ I; m5 X; i3 b$ l# U) ~: h2 U; B
;;将此次交易的记录加入到customer的trade-record-all中
1 o. c* M+ [2 m, X* J8 Hend
^6 Q0 b3 U3 H) q# f$ @4 j( U! @7 s" g/ J7 D/ {! Y y
to update-local-reputation
; n, y% B |* U3 }/ p) x! d) pset [trade-record-one-len] of myself length [trade-record-one] of myself$ ]( P$ N! X* {) L6 {0 M4 W* H
# j `. g; s& a3 H- v: e! \0 x) L, s) P: k3 T G1 d& X Q5 ]* Q+ e3 r
;;if [trade-record-one-len] of myself > 3
$ [7 l5 q% ]9 e7 |2 }6 Iupdate-neighbor-total! d: P8 D- ?" u
;;更新邻居节点的数目,在此进行
! |2 ?' h7 [% L* o+ y. ?3 Zlet i 3
) P6 X; u! f Y8 M) Q; ~ Glet sum-time 0
* f: D4 E" s2 W8 R, O% Lwhile[i < [trade-record-one-len] of myself]6 P6 [9 h5 J9 D
[
! M$ U6 ~2 L9 J; u& ?7 w8 |6 gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ c" w5 @2 c. _1 tset i
1 V: C! D( v4 r: u& P( @5 l5 m( i + 1)
0 N+ i& R6 i2 `& f' X. H( m]
6 s( \- a) _: t3 Xlet j 3- S+ `6 N# d$ o Y& H+ g' g
let sum-money 0
; [. }, k G: N# S1 ]% Dwhile[j < [trade-record-one-len] of myself]7 T0 ^: L& q1 W1 I
[" _ ?; q9 `2 n* F
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)7 Q% J. P# r& L# g! E
set j1 [, Y N ?2 W9 I/ ]$ l+ @ D
( j + 1)5 v5 R3 i( g& ?( ~5 R
]
9 R0 d6 Y% y; r h" o6 S0 P5 K, I: ]let k 3' k% c% o- N$ }5 ]) m P
let power 0; F1 C; J! {$ p! ^$ H* F+ q9 q$ s
let local 0
. M: ^: @ L- Q; s: d. xwhile [k <[trade-record-one-len] of myself]
0 T c& ^' E+ P* z[& v; z4 b9 \) m
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) ) c- l5 T5 t: i, z8 W+ [
set k (k + 1)9 G0 R5 x* r* r2 p5 Q# `+ k
]4 H. W+ O( Z5 e" k9 r G
set [local-reputation] of myself (local)/ S5 q. M+ R# A! x4 t
end
) F* D5 _; M, d# t' F
2 m. l+ h; m: G. G4 j. `8 k8 r+ Mto update-neighbor-total0 X. R# n' E9 I% m
# p* S% D% I1 L/ e( t6 J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end5 K" G4 @6 a. K$ R$ z
8 {1 w# b# r* k; a1 {8 c$ i* H
to update-credibility-ijl
6 _7 t4 Z% v( Q1 F9 J0 S% ? L6 B+ w$ \5 m7 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。
R! B2 w* d6 X4 c2 @7 Z8 L9 Wlet l 04 c- b4 J$ G& t% z I
while[ l < people ] L) Y6 [: {. \4 \4 [4 i" J- l/ U
;;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( l4 n4 W/ F# m N+ I# f( \
[
9 D9 t! p) w4 G1 L' l0 blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( O. b7 F: A2 `if (trade-record-one-j-l-len > 3)
3 t, v/ Y% Z( x[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
t, J0 M# I' w7 e, r; Dlet i 3
( k5 b% K0 ?$ ?0 Q# i7 Nlet sum-time 03 B- s; D. s/ @: A* v
while[i < trade-record-one-len]
: S& `5 I# u# X8 N/ `0 x6 E6 k[- s: g+ n( a8 T% H9 Y, j1 f
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% i5 a$ f. w" J& [7 g- }
set i
. X/ ~ v! O6 Z( @7 g( i + 1)0 l' i5 L& x" D1 Y
]% Y9 R) t) G+ M% x8 t- Z: g
let credibility-i-j-l 06 U$ B8 B5 c$ B4 V
;;i评价(j对jl的评价)# R$ p3 F' o) x3 {) p2 C
let j 30 H: f8 R# A3 S0 Z
let k 4
/ Q. Y: m% T( {5 Hwhile[j < trade-record-one-len]
& j- K( o' l# W8 v$ @" U* f[4 N9 |. ]- G4 g, Q5 y% n/ Q
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
4 J2 t2 ~. o( b3 U" Hset 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). I3 E' }6 k0 |! W6 n! Y" K8 ?- i! Q0 M
set j* J6 c8 A H8 b7 t
( j + 1)
3 G e6 u9 O. Z1 y2 j, N2 U. `. ]]; H _9 i# C$ P: ]5 y- @( A C% r- Q
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 ))
& @# k5 W) n& t7 m
" {* ]# p1 n/ `
7 @+ N+ m a- e& q$ G2 e% u+ vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) F1 ?3 o4 j# V;;及时更新i对l的评价质量的评价
8 f4 i3 ^ J1 Kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 q6 ~/ D4 `% l* {* Gset l (l + 1)
' q% j4 F' ~7 n0 J1 n5 []
+ q) s* i: b2 X1 X( E- Iend
" l6 G1 e1 C: `* b" w- a) d
+ [6 L$ r9 N% ]4 F; jto update-credibility-list
! h' K6 c# r2 P7 v7 J$ d0 ilet i 0
% b* Z' V' J1 x7 i! p3 ~while[i < people]
1 ]1 P0 i! b( y9 V% o! G1 w[6 ]9 ]: F5 B# x1 v- m
let j 08 w3 G+ `' i0 Y7 K1 ?3 o0 }
let note 0
! ^$ R' O3 H% U) olet k 0
! m2 F: o0 u$ F& P. M;;计作出过评价的邻居节点的数目
7 a! |- O7 c1 n: p8 j( xwhile[j < people]) R7 \1 F- n% c3 }3 X0 z
[
" E7 Q- _9 s! m! D5 A ]! a4 hif (item j( [credibility] of turtle (i + 1)) != -1)
) F/ g3 Q, V% G" ^- O! e$ S/ N* m# k/ U;;判断是否给本turtle的评价质量做出过评价的节点
' s; ~; L D4 a. Q' z[set note (note + item j ([credibility]of turtle (i + 1)))
0 n X* y8 j+ T2 q;;*(exp (-(people - 2)))/(people - 2))]
: n# Y% V; P% c0 _7 i. \7 F4 A. rset k (k + 1)
* q) _2 {7 m, U& Z9 H8 b( D]% m9 h+ `' Z i
set j (j + 1)
# U2 Q5 B+ m4 S) b]! d, `( _8 K3 C4 l" Z
set note (note *(exp (- (1 / k)))/ k)
8 V) j J( F* D t1 H uset credibility-list (replace-item i credibility-list note)/ o: m: b" _& x, g' X+ }! ~
set i (i + 1)% H( r8 J; Z+ ~5 }' d
]
' h U& y1 `& O$ Tend
- o9 d/ t! q/ u1 u% L0 O1 B0 n# z# {! p J, C) i
to update-global-reputation-list$ K, {1 J. r4 ~3 O+ w0 n1 p
let j 0( l3 U! W$ w% z
while[j < people]
, K3 h0 B) x8 v" }% K3 Q[0 T3 d$ J8 N) [$ Q3 c% l
let new 0
8 y! j" w2 I, E;;暂存新的一个全局声誉3 N. c; K$ V% P* {6 N' \
let i 00 n, ], {; C' e7 [
let sum-money 0
( J2 w5 t+ Q5 I/ F, Slet credibility-money 0$ x; q& a$ S/ y1 k
while [i < people]' b2 z- @: f# J, E) k; h$ N6 J) p
[) S N5 N3 Y7 u: A, a, D1 V& g: [
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): h) g2 O' M# E7 @# k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 O0 Y- Y4 B! W; g- I% o: U. @
set i (i + 1): v$ q! V7 A% P
]
: d' A+ k" g: K1 }$ Mlet k 0. [* B$ H) `4 D; y
let new1 0
s9 k) u4 L) a( V! Z, Nwhile [k < people]7 X2 W! N6 \; Q+ u
[
" e |; a8 o2 R; h5 R4 b8 |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)
$ O1 q7 z. V$ v) U$ z* C4 zset k (k + 1)% v7 m0 s& T; e% ~ r, G' I
]
' B9 G+ r0 u3 Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 g6 T" b; f8 B- a" g+ A! Y' h Eset global-reputation-list (replace-item j global-reputation-list new)) J& u( S, ?" N; A; v2 H" W7 A
set j (j + 1)
( c) i, v, ]! L, I W]
' E: t: Y B4 b/ r8 B4 x \end
7 M! B; ^. T; K" O: _: {0 D) \( [7 _( ]* }+ N
! o& A) N+ @- G4 L( g/ g' h
3 y! `: Y1 Q2 f# _0 nto get-color
& p4 p$ Y% }% i, \! w4 ?5 ?/ h0 X6 p' |$ Q
set color blue4 h9 [3 j; Z D
end
3 r6 V3 R) f9 l3 _, e4 T2 ~9 f1 R4 s: V" K. k4 F$ ^
to poll-class+ X- }, H8 v# s( r/ Z
end
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation") J$ f) U U: F k% b/ d0 {; w
9 {: p% W, A& n) F4 c1 C3 o) }' S$ s& }' u
set-plot-x-range 0 xmax' u. B) k8 \* ^' S) ]0 i5 y
: W7 Z5 ~) s; `% b5 |/ p4 p' ]set-plot-y-range 0.0 ymax. i$ n% S9 j `1 ^. N- y) g
end
7 z0 {4 M( E2 R1 r. b% I! ]4 z: @% s7 K0 d7 l" b4 X, F
to setup-plot2
S' @! ^0 y2 ?! O; Q( B0 c2 S2 D. a0 w4 e$ Q
set-current-plot "Trends-of-global-reputation"- c( q' E- Z5 V# f
) i( C9 d( v; F6 K {5 Q2 u# g/ m8 oset-plot-x-range 0 xmax$ q5 S) T2 o" A. Y$ E' z
' R+ I) Z5 T- E
set-plot-y-range 0.0 ymax
* K9 {# Q8 ^/ \: ^% W# `5 a, Xend, Q( E2 \% g% b
' U, W+ J! a; F% h; ]
to setup-plot3
) P0 g- w9 s) I! Q5 t6 D! j0 |5 n% N+ I2 N
set-current-plot "Trends-of-credibility"
4 [' d6 Q' F& |: Q6 U/ g4 p
" e4 K1 c6 q! y) z1 j8 Mset-plot-x-range 0 xmax
* p+ S7 b s* M5 @$ H S9 F* H P; E4 D; ?4 @# k; J% r( x% _
set-plot-y-range 0.0 ymax
3 H( N) r [) Q8 Oend$ [) H# D- ?& s' `6 a7 H1 E
; j: g: S& o8 L" j. J& v& u8 x
to do-plots o1 C3 v3 j& r3 b, Y
set-current-plot "Trends-of-Local-reputation"( b% y3 k& V8 u
set-current-plot-pen "Honest service"
) }6 ~% g c% k4 j- ^; c* dend
% f' F D" }( O' r; i6 S' `- \' i6 w% A1 z$ E( |6 E# n: f& k! f
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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