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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
6 w, I& u% R# O& P0 N( V0 x6 R, Vglobals[- [1 ^9 P) r" o0 `
xmax
5 @9 a0 S- u( B6 i# `& pymax
7 \! ?( K" k: g! U1 o7 o' e! Zglobal-reputation-list
& e: p7 |8 E4 ?. H5 \' L R: d5 y/ N; r
;;每一个turtle的全局声誉都存在此LIST中 _& e( E/ j/ d: |" n
credibility-list
3 B3 y4 U6 ^, r( }. h) F/ w8 w;;每一个turtle的评价可信度9 u, S7 S+ T. @" Q! o9 M# V
honest-service
5 Q2 d& D9 s* o" h& l+ Munhonest-service" Y1 P+ f5 }! f7 H) k2 g
oscillation3 k5 E: ^ {$ P* g! y
rand-dynamic4 ~+ D9 z% ?3 b. J- N" K1 v/ [6 t
]
% E7 |5 f- K9 [. k* H$ i- w
5 M- ]1 Y9 Y9 S0 Tturtles-own[
9 K/ w9 O3 i" Jtrade-record-all# T8 N5 J g& r. z4 K; q2 f
;;a list of lists,由trade-record-one组成
+ s" k; B K4 ttrade-record-one$ y g2 [9 A- w1 G
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' m$ N$ g+ _4 i1 x6 W) Y; M* t9 o7 P( c3 W
;;[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]]) |, b9 U3 f9 Q3 I) r( M* `4 \7 n3 z: [
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 a, @$ z* J0 s; 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
9 w+ I h' w! A5 C+ {neighbor-total7 |% X0 K5 z8 U- \9 |4 @5 G' c( M5 H
;;记录该turtle的邻居节点的数目3 L3 a1 y" P# e
trade-time
. N1 C+ s" y5 H+ I% m. M7 b;;当前发生交易的turtle的交易时间% \# X% W/ t. T5 j
appraise-give
) Q" v7 P* [% B C; [5 _0 O;;当前发生交易时给出的评价
9 f* j0 V2 }8 z/ c2 x( Pappraise-receive
/ I0 h+ F9 ~3 ?# Y" o) d;;当前发生交易时收到的评价* l' `- A% L: U: \5 F
appraise-time; r" }& w. j. p$ d0 D
;;当前发生交易时的评价时间# G$ v) A0 C Z7 [2 T
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( p7 ~: A! u& i' Z
trade-times-total5 |' v) G$ c/ G6 L3 |( Y! e, d
;;与当前turtle的交易总次数1 w0 ]( H" T4 [
trade-money-total$ e$ S, m8 M0 A
;;与当前turtle的交易总金额
/ ^ m& V5 K+ K4 |& L4 l' B* Alocal-reputation1 t4 V; F& O( S+ r
global-reputation
1 ?7 Z5 A7 T$ tcredibility3 k2 d% E, c$ K% k Y: }% Z2 j5 Z9 e
;;评价可信度,每次交易后都需要更新9 @% G% U% q3 }' `. H
credibility-all+ {2 e1 A3 X8 l/ v" P2 x. O6 `
;;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
* `' n2 k$ D% J/ G0 G* k
- l% z. I* @9 t& [5 t;;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: i1 N9 I: u+ j, U2 B
credibility-one
/ H% d" J; C+ `/ \, _$ c;;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 m: K7 @# [! U& D& m
global-proportion
2 Y" T2 a# J, ?customer
- F* w! h& l( n0 c0 \customer-no, `# z$ e' n! O
trust-ok: L. {7 c! R4 c) O( X
trade-record-one-len;;trade-record-one的长度4 [$ S5 `, f+ V- v( \$ A- L6 l& F
]
# w: L2 c c/ s; _1 b) K: G
9 t2 j, b" Z0 n. V;;setup procedure
' O" R" `5 W, E/ a: ?) |! N) j3 r0 J; u, B; I2 {/ h
to setup8 o4 ^2 {4 G6 ~( Y0 n# Z
$ ^% Z' A* P3 ]6 }
ca
' [1 o2 u5 L% D7 T
% | j( x6 B$ t2 X# B& c# b( n4 {initialize-settings- W) {5 o, Z8 p X9 o
1 G, Q! O @4 h% {8 Ucrt people [setup-turtles]
( Q4 O- {# |, p8 R
# I, W: Z4 @1 y5 n* K0 T8 xreset-timer( }4 G' N* {9 B4 J
b' X0 R3 h* j; ?; q6 n1 ]. s
poll-class
/ ~; w7 Y+ P0 K& i& U; W- a, T2 Y; E1 j; i/ o5 {+ ^
setup-plots- e% J' K* U3 x' P% G
$ v" S7 X# V* j* T+ H2 U
do-plots
) [8 C) p4 q/ p& D9 i S% Z% uend% X; M& e4 i& f; U8 p& Q
' n |( k# @5 w! m% Rto initialize-settings- K- F3 {' V% ^4 ?: ~. b
. F0 n6 r- s# X* [- {set global-reputation-list [], P: {7 f' P# q) ]1 D% x
0 t/ O( {4 u$ K3 b, c; a4 y, U. Gset credibility-list n-values people [0.5] r4 r5 P. T$ }
! H* ]$ N1 `3 i
set honest-service 0
. C& b3 ~7 d9 u! k, X
, h! ?1 I' X) G: Y8 B2 ?set unhonest-service 0
- h) J# y9 M. d" [& A" P" J6 W
0 J$ T7 V$ M; G+ r2 Z% R' M1 eset oscillation 04 _8 u0 e4 T( C
2 e; H/ a4 {( }, U8 Y) ~
set rand-dynamic 0
& @2 i# ]. R9 A; Oend
/ v; R6 S7 X: s9 s0 e1 E* U6 g. z% b/ e$ G# O
to setup-turtles , f+ c; f% o# h c* a
set shape "person"
2 N1 ?2 C3 s# asetxy random-xcor random-ycor
4 O) X7 S) M# l* k# ?( d: wset trade-record-one []
' i L% X( F4 j7 b9 V, ?, t$ n3 _( u! D3 x4 z: n2 x
set trade-record-all n-values people [(list (? + 1) 0 0)]
2 o2 u- O( c% B; l- M! x$ P( }" W. w" m* O
set trade-record-current []
! S2 ?: ~0 `1 c0 _% S& \, {set credibility-receive []( y' H0 O; U' t9 i3 r
set local-reputation 0.5
2 o, s: t: P+ Nset neighbor-total 0
/ o" g7 u7 \ k9 S# _- G: Pset trade-times-total 00 D% w* i; J' Z0 L
set trade-money-total 0
9 _$ {, v$ `; `& b6 g+ L/ hset customer nobody$ U0 l1 @9 M ^1 C# S0 z( L
set credibility-all n-values people [creat-credibility]
$ t( d5 [8 ^" {4 Q5 dset credibility n-values people [-1]
4 J# L/ R6 D& U3 H7 F$ t4 yget-color
, j$ L) I$ T9 {% ?; U$ C8 E" ^* J' _+ B( X/ X; D. Q
end
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to-report creat-credibility
1 p' x1 Z: Q5 x. nreport n-values people [0.5]
) J# |; h( X/ r2 F6 [8 _2 `: [end
( S; n4 {0 d/ ]3 {( u; G5 }
2 G5 X5 @3 Z% O8 F% K* jto setup-plots
2 |$ O8 A3 l+ {% G7 |8 c8 H% ]! s2 @, Z9 Y$ Y7 f
set xmax 30 o; q( w2 d* S; C8 f% A+ l0 h
9 z8 z8 |# o' u$ Y3 H) f
set ymax 1.08 q; ^( A) i# E ?9 {* d
" Q. Q, g. H ]$ ]" y0 v1 i; Uclear-all-plots) l2 H8 Y7 a% E3 a; c- }- @3 c
4 S* S, P6 Z1 C; H$ Lsetup-plot1
+ [0 O6 A# `# Q C2 {
# v" Z3 H3 h7 L& s0 e/ U) usetup-plot2
: C2 J% [, w( L2 k
/ |" z* w ^, \3 Z p' Psetup-plot3$ m# `! [+ y" U3 U# y
end7 _3 N2 v% t8 c# Y" ]2 p
6 U: j5 F8 J9 O, T6 i9 V( g& n;;run time procedures
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3 I! _9 Z/ M6 ?0 g2 L+ vto go8 a6 w: E7 [1 E* c2 {2 a# g
: C- ~ Y4 a, V. F9 k$ s
ask turtles [do-business]- M6 @; y+ D6 n* R- _. h# E
end
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to do-business
1 X o2 A \9 f9 r0 h; m( }" M: \6 g8 p+ V; z, l# f
6 f) j3 p6 b `" A+ y8 |rt random 360 T+ Q {# q0 C. b+ n
" a2 [1 u1 ], A# L' K3 \3 ~fd 1. L- Q( k, y0 y0 B8 h$ O) v& u
P# `4 v3 o- K+ N$ |, U% s/ rifelse(other turtles-here != nobody)[$ G/ r2 s/ f+ H0 Y# x( H) K
/ b4 w: [' x' {5 J- q; W7 t& Fset customer one-of other turtles-here" X/ Q; ~: B) x# @! l* r! g# o
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;; set [customer] of customer myself
, S7 _$ }8 q1 X' ]( t$ Z; O$ @; }4 I x
set [trade-record-one] of self item (([who] of customer) - 1)
4 U1 M/ m% Z" S[trade-record-all]of self2 f- M& }* i1 O8 d
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 B e2 X# r: g9 Y) _: y
$ V1 w3 Y5 v) {! s9 j9 l5 yset [trade-record-one] of customer item (([who] of self) - 1)& V+ i. j y* |8 [
[trade-record-all]of customer3 I$ z! Y) L2 z( N2 H
; `5 t2 E/ N0 C0 A6 }
set [trade-record-one-len] of self length [trade-record-one] of self( A( n0 J% f0 H# Y. j$ U/ L2 }
6 F3 U$ p% _+ O1 b
set trade-record-current( list (timer) (random money-upper-limit))
0 k! `( T5 v# w
* J" |4 l/ N/ k: \' S+ cask self [do-trust]
- Q' |( h; ?' T: R/ s) o;;先求i对j的信任度* n. M3 q, y, v3 e
) p+ t/ v0 ]6 J2 a }if ([trust-ok] of self)
( Z0 Z+ Q9 O* c% ^ U1 X;;根据i对j的信任度来决定是否与j进行交易[
, G- ^+ X. E1 y% g* p6 wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 Y: ~# h2 q& B% D
& x. w3 h# G* v' H9 N9 e[
! S( F' a# `8 g8 B8 A0 }1 V/ a8 P3 y# r; c8 G* ]
do-trade
% j, B. M, J+ K
5 X% I' \+ t" H6 qupdate-credibility-ijl
e$ R2 i7 Q% }2 O, k+ H1 H; o' q- O" I X2 w+ p
update-credibility-list
, G2 K4 S" e; R
$ V$ R3 |$ l {9 s7 R" \6 ?
! u1 ^0 m( A+ h" q5 Q* Kupdate-global-reputation-list b* p! C' J/ G
0 g8 M8 u( J: Opoll-class% p+ U B( ~0 C/ h. q9 `# z
! X+ A3 b3 ^ l6 |- k4 i" Uget-color, R1 [" G a/ L& I6 o, r4 E( v
' T8 h5 |2 L F3 |- U]]$ ]/ { Y! \& R( J4 L l
1 S: E6 g! \" a5 i! F( {. @# W;;如果所得的信任度满足条件,则进行交易9 [' i4 Z: K5 O
9 E2 V3 t1 `8 x5 U& T9 l. ~: O
[
- D& e; }& \( {1 V5 X
5 L* b" D. V! @7 {8 [rt random 360
6 Z# {, a" N8 c3 V
8 I0 d% f$ D& g: ofd 1, o2 a% W0 u# s% Q0 B& g% r/ [
, M3 e4 A K" R. s
]3 s W( Y$ T: f; @) m+ \8 _- }4 q
$ s2 U* p6 t) c/ b' I
end
# B& |& h% A6 ]: S) t2 ], f. j
" H9 Q+ c$ n( wto do-trust
4 F$ ]; B" D- I+ D5 rset trust-ok False
/ F" B" l! ?8 L: I6 m' r6 F( b6 V7 F2 y
4 p5 t0 }$ z6 }4 B, S
let max-trade-times 04 z! _: F! @5 N. D. c' Y2 u
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 l$ D% f# u8 g% P& _% m! o5 I+ A
let max-trade-money 0" O, ~+ m; [$ ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( T. y- ]- m" p! `) |- slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 F" y+ c U8 u; J; r. I* s: X' f s1 Z( A1 C& h. p1 U' F8 e g
& b" t0 g( S4 O/ g% X4 z
get-global-proportion" r/ o g8 e4 a, H" |
let trust-value0 d' S1 k9 p: ]& w. X/ y7 Y' c, Y
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), F" U$ \- D5 {
if(trust-value > trade-trust-value)* u" ~0 D0 e" E y7 j2 O9 b
[set trust-ok true]( m; w+ \% O. z: s1 a7 @* C5 a( P
end
0 C5 R, O7 C' e' z/ l
- G* B& Z4 u I8 O$ Sto get-global-proportion
( v; M J7 p) M) g) ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& h" |' t% @: H) q; w+ G3 V[set global-proportion 0], ]: L6 k8 W& c3 ]0 `$ A
[let i 0" q, b7 m/ `' A
let sum-money 0
# q! B7 t' S; Z% V9 ~while[ i < people]
3 Q4 q% c1 c* T! A# W K[
8 V* e7 c1 V- F4 U% uif( length (item i( z+ P1 p$ J! [, z: K
[trade-record-all] of customer) > 3 )
1 H0 ?& _) [7 r6 s8 S! w- b+ g[
9 @4 \9 V6 z# p& Q7 i& _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ q0 @; A; a/ X0 G. X; r] d; F- u- M# \, a9 l, T
]
4 r7 I( A3 U* Q; l ^" Jlet j 0
' {+ p# d6 g* S* _' ~$ G; t3 glet note 0- y9 D- ^5 _3 S4 g- d
while[ j < people]1 a0 t# h" Q+ E6 c$ D' B1 L
[
. v8 c' O7 J; r# @; Cif( length (item i
! S) J! I% M$ v) h5 c$ y8 o[trade-record-all] of customer) > 3 )' L/ K7 P5 ~* S# a* M) c
[
/ }, `, t4 y. J/ hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) i8 ?& z$ ^; T _2 A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- }2 ~/ S, O% m# i# u[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 G1 o) Z, j3 m9 _1 _. v]
# ?' j- e. M. x9 ?3 r: D]
! m+ @- u9 {: j, R$ [) K# O; aset global-proportion note7 c0 ?# {' H$ \
]- A9 Q* W9 k5 j- F6 A) K ]3 O% ]
end
) ?+ |. _( F: r$ t3 o
1 j9 W! {8 q: R$ P7 m* F. W! mto do-trade, a. O0 V8 ]6 k
;;这个过程实际上是给双方作出评价的过程
, f4 _4 R( J' q8 S' }0 {) iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( F9 b0 A/ Q: v9 d7 V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ ?$ a4 c. A% Z1 _& A( s- c% J. p" E
set trade-record-current lput(timer) trade-record-current
+ z# p- s" S2 b' a, ]* \;;评价时间8 d: e3 R; m- K
ask myself [$ }6 o# `& O: P% U) B' ]) r! e6 g3 Y4 _
update-local-reputation5 i, e+ o% a1 E( a' j3 t
set trade-record-current lput([local-reputation] of myself) trade-record-current0 y. z+ W4 h5 j; E) F5 s
]
. K, r# E2 B9 x( j" q! B* Rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# R4 U+ E/ B4 L/ K;;将此次交易的记录加入到trade-record-one中( e9 c1 f+ X1 c M
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% i- ^- z' G) S2 clet note (item 2 trade-record-current ) G5 M2 M3 g Z1 |. K) ~
set trade-record-current5 \+ c4 C0 P$ B0 `2 y1 ?
(replace-item 2 trade-record-current (item 3 trade-record-current))/ c+ p: h4 x5 f2 |& a
set trade-record-current
& u! \0 ?& {' z" ^0 L- s(replace-item 3 trade-record-current note)6 G, [8 p# L% z( M8 V
5 ^) g; N3 _) m9 U# W$ j9 E! h
; G! [/ ?4 _; T% t
ask customer [
5 N* H2 ~. J8 z1 Uupdate-local-reputation1 |: `/ ^3 l. X: ?& g
set trade-record-current
7 p, ]: O0 _, P8 S8 q1 D$ j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% K5 ?: @" R! B1 E: E]- P$ _) o% l5 k' |1 {
% H( l/ G' z% d# l5 z* J3 c+ c) f, Z
' @1 W8 w! ^# A0 ~4 ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) v7 O. E, D5 c* Z
" _' ~/ Z Q6 G" b5 Z- t- Aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 [6 Y' O s0 H8 a! n
;;将此次交易的记录加入到customer的trade-record-all中
! R: [4 d7 y, W% t1 ~( I( yend
# I0 ^* i* Y# c& R! B* o
8 J9 ]) {3 H& f/ ~8 f4 Eto update-local-reputation
' g% U2 e% f. Yset [trade-record-one-len] of myself length [trade-record-one] of myself
0 L: Z3 `+ z' ?5 y* r7 }
8 X1 @% b$ G2 j" n1 m
# d% }/ f- }, v# B# ` a: Z( t;;if [trade-record-one-len] of myself > 3
+ a& H# ^2 [, ?: F0 Aupdate-neighbor-total
( z$ z! e' \6 l;;更新邻居节点的数目,在此进行& S1 h) W5 D5 Q- n5 B- u! ^; m2 A
let i 3
9 U- d5 U) h5 m2 _# G- R% u( x4 Ilet sum-time 0( r" {( |1 C2 c. X) g
while[i < [trade-record-one-len] of myself]
V( h' L. C6 @0 J7 w5 ^* t[9 i# [% U- l- A" v/ S, G
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 l. E2 W, V9 H: t' |
set i( C [" X3 M' v6 I2 c/ N
( i + 1)8 n$ h E ~. D. w8 H' _
]
( r _* N% ~; A# p5 ^% Flet j 3$ F7 j: X, {6 Z+ K' ^
let sum-money 08 V2 z. v2 c. L- }
while[j < [trade-record-one-len] of myself]
q- p c) P/ K, z$ T[
+ ]: H O3 z8 M) Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 U$ p7 |) M+ P' O0 z1 c7 H b
set j
$ {) E: H1 m% [5 _( j + 1)
: [0 G: k6 _- w/ t( d]
, y8 \ _ E1 X0 Y" M4 b Wlet k 3+ @7 M' B0 d# o; E, c5 ?! ?8 [. T
let power 02 Q9 J8 M: F, ~
let local 0" c2 w/ o/ x7 X$ _: J$ f% i
while [k <[trade-record-one-len] of myself]
* c' [8 O3 F/ V[* l/ t3 ~7 T. x- D% c6 ?
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)
" d- k. H- v/ L* j b2 A$ }# Qset k (k + 1)" ^6 Y7 Y+ N& H; a
]
* I2 f! p" {4 M. C N1 S& j- @' \set [local-reputation] of myself (local)" O) ? O R& Q8 b+ m( j! d
end
# ~$ w) X/ {) u: {& u% |, r7 c+ Q/ ]
to update-neighbor-total
+ E8 Y2 t2 g& ?. a
9 Q, z& H" v; v1 p* i4 @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- F6 d& }+ h- K$ X
- n8 [- H' f2 p/ |# |
/ b- \1 L3 A' ?7 o/ |: [$ fend
5 h. \+ v1 K1 x8 W. B7 Y r* M4 l9 F; d
to update-credibility-ijl 4 H0 g' W9 t( }+ f5 H3 e' g% m
. V; x. x; W1 s4 d+ Y. V) ^; d9 A& f;;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。
4 a9 n8 O( S) [3 L4 M! Y* f' Mlet l 0) o' T. C0 \2 E
while[ l < people ]
3 W) m- I0 ]; z4 L1 I* 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( X3 ~1 |# S: ]) E6 M5 L/ J3 N
[
" E0 o5 k) D6 l& D0 B+ Y8 elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 E8 K0 e% \4 ^: V" o% kif (trade-record-one-j-l-len > 3)
& Q- L2 D$ b4 z# a[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 Y* B6 E b6 Y% K( L
let i 3" ?1 N) d7 q+ O
let sum-time 0# p# ^* e, H+ X6 a" G" q
while[i < trade-record-one-len]
9 k+ Y% I( u5 u& z# V[# u9 T* ~1 x/ ~( N
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 c: ~. c5 i4 E5 g. V* \* K sset i J3 Q6 c4 j' G5 Q2 m; y
( i + 1)
$ N6 P3 s- y" ~3 X9 r5 V1 K9 N* _]2 x3 Q1 W; r6 H
let credibility-i-j-l 0
! w( x3 @$ h# _% L;;i评价(j对jl的评价)
: h0 w( N& E5 D! J; slet j 3) E4 m, c/ S n0 g
let k 4; T; J, S5 G, \3 Y1 v5 n/ C
while[j < trade-record-one-len]7 Y, I, X4 U3 [
[4 X6 \. ~. w: S2 `: K
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
8 I( B6 ^4 P" \6 {/ Kset 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 O# z" A. K* j' {, Kset j
9 h0 c% x7 [8 _, F# p( j + 1)
b# y4 u5 C. F) {% H8 D]
) l% | z( U# ^* Wset [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 ))
( ]0 Y7 F, p) H& a2 }) q
: w! {2 [. y5 S3 X5 D1 ?" f- e9 H8 M! A& A
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ ^& d8 d0 n* `# i* J1 |;;及时更新i对l的评价质量的评价
6 A- x, t) p+ G3 sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 _9 E! j8 {0 @' [0 r: C. ]7 Dset l (l + 1)
3 o; r) M1 M* f+ R; { Y& Y]
' @# L8 N) W/ o5 C$ Kend
7 C9 L4 ^- ~* F9 k. R8 F$ O5 ^6 f2 T& V* A
to update-credibility-list
R8 d9 d. g+ {9 q* ~9 ulet i 0# j4 S* Q, G% x" m# t
while[i < people]1 s% F+ [/ [2 @, ?0 {( M
[
i2 g2 `5 n5 G, slet j 0
. R( ^/ V9 H6 t# h0 m3 F5 olet note 0
% Q7 G. X# r8 v$ T6 qlet k 0
- U6 B& A d- ]# e: F+ M/ G;;计作出过评价的邻居节点的数目
! M! W* W6 C; X2 J7 s Vwhile[j < people]/ y/ c6 k2 b, }1 F Q1 D) W8 w8 T
[( N: }" c9 h- P2 G1 ^! I5 ?; b
if (item j( [credibility] of turtle (i + 1)) != -1)6 B% E8 k& @) ^. u1 Z5 x/ G0 [+ V0 t
;;判断是否给本turtle的评价质量做出过评价的节点
6 u* ?$ _# n) R* H% G6 T6 L- P[set note (note + item j ([credibility]of turtle (i + 1)))
( C9 d# j7 n- s9 y+ t0 G+ K;;*(exp (-(people - 2)))/(people - 2))]
( \8 |: t7 p* r# X7 C$ O, Rset k (k + 1)' Y2 q- w% E- ~. l9 E
] d: Z3 u r0 x% e( M
set j (j + 1)
" p0 M) N1 f# m! n3 x r* i]2 A4 D( g- p6 b: z+ f
set note (note *(exp (- (1 / k)))/ k)
+ C# q8 k2 K2 z& L$ O! Sset credibility-list (replace-item i credibility-list note)
. G c- A1 O) q% v0 K* X4 O+ p9 l5 [set i (i + 1); T2 ^# T) A6 W9 {
]1 G1 \2 X% w0 J, n7 d! H& O
end# c' n* L% }- W }
% T/ S" C' P1 O+ Xto update-global-reputation-list- \) {; h; o* k1 D: O
let j 08 v/ D a3 f& g( _ k. h& i
while[j < people]% ~* R' o6 q0 w$ [
[
7 V: P& Z3 f4 H7 Olet new 0
2 b& A2 C9 D% k1 K;;暂存新的一个全局声誉
7 m) u6 @: v0 }# I0 ?let i 0
8 X3 M1 t6 Z4 x dlet sum-money 0 F8 I3 H2 N/ Q7 C- ~( ^1 d$ q
let credibility-money 01 S) p7 L9 c3 Q$ o4 x, K. v! w
while [i < people], v* B" q7 l8 O
[
# X# `' y d Dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( o# x5 a5 J% o/ r/ hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 O+ D1 ^) Q4 a% z' o5 h4 Xset i (i + 1)3 b7 a# u4 C! g* E" ?- q
]7 u( K- D, o5 B
let k 0
" }+ n; x5 W; S2 u" Alet new1 0
& Y( u4 O. B+ _3 q( Awhile [k < people]
+ ^! P7 e) X' }+ {) l4 o9 _+ z[
5 F- w4 J6 W1 \9 G# Rset 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)4 L2 i! r1 j; Y1 ^- X
set k (k + 1)
$ t% V; j! Z" T1 F1 q]
0 y, N2 S: k5 @. v: c/ Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , B, ~- q+ T$ c( R. F% M
set global-reputation-list (replace-item j global-reputation-list new)7 a y; E s% \
set j (j + 1)
: W8 u; v' |. S, M( ^9 L' F' q]
0 ^: J) m" \) G7 }7 H7 X( P& Eend
- d) t! O( w/ e! s3 E9 G0 U, R9 T
4 i# W7 E2 X8 ]) v, r; j- ^6 R9 h' H! H
; S$ d. L. K: [2 Z: K/ E* f0 d; f
to get-color+ K L/ L, U; q2 Y
2 B6 T8 x( f P9 r2 h$ [- r
set color blue
% p; }* O8 |. S, T. p uend. d J R' {9 q3 G" w! d
$ O5 H6 t3 E3 D; r
to poll-class
6 u8 _" ~ ^) ^5 c; Zend
4 n3 D* K& m2 @0 f# A1 t5 A. {0 m$ w% B
to setup-plot1; p- N! J/ ?3 B! Y
4 G9 Q9 {% p" M3 f% Z# ~ [% u Q7 G3 kset-current-plot "Trends-of-Local-reputation"
, T, E- X! q) D; a' M$ _7 @: O. h W p |9 K
set-plot-x-range 0 xmax
( n- d) }' L1 @0 ~& h9 g5 @! s9 I$ S- I: a
set-plot-y-range 0.0 ymax
, [1 x/ Y: p8 b6 y- Z dend) x$ |: m, u' \9 b1 z
' o9 Q+ m) w8 v# ^+ h" M( g Hto setup-plot2
% ^) b% z8 C3 Y5 [
( a2 v( J0 U ]7 r2 A: V" gset-current-plot "Trends-of-global-reputation"7 e' ~# W2 x2 d8 a- e. R
5 c: w9 I# k/ E0 Pset-plot-x-range 0 xmax
' S* m4 p9 d1 o/ `2 k0 W0 M5 H0 l& n* ^' C2 G7 p" b$ T
set-plot-y-range 0.0 ymax+ I% U& R! z! ^- }) {6 S4 o8 D
end' ~) e3 d, {; i- A& [0 y9 i
$ `5 p& |2 B6 e& |; \/ O3 W# w
to setup-plot3
; w8 J. a5 x1 b y: D
0 _! ^5 Q# I2 V9 J. v* Tset-current-plot "Trends-of-credibility"$ ]) @* u" K3 K& ]( Z
$ ]4 h( Y; S% J: s. w0 W4 Z+ H
set-plot-x-range 0 xmax, P: f1 @& g# `3 k
; x2 f& g% U' kset-plot-y-range 0.0 ymax
9 z e" `6 X! a0 E/ b' z. r3 K! w- i7 `end9 l4 ^. H+ k, z9 g, w
- n. K- ~& ]' }& V" |8 h3 K1 Sto do-plots! g. K! W1 j! C4 _, U
set-current-plot "Trends-of-Local-reputation"
/ \) k" ^% N( }set-current-plot-pen "Honest service"* H, a$ ]. ~4 j& A. G; F! J
end
; |; m( F3 |( L5 j: R3 v* l0 [+ {3 N5 l2 u0 H5 S8 j
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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