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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
9 [5 S4 k" N$ H8 }) l7 rglobals[5 ~) j/ s8 h& @2 q3 g
xmax
^! \5 U+ f0 q# ?: l9 W! Pymax
# e# I }9 ?3 G( n: tglobal-reputation-list
* z4 _6 `' h# H _7 ?) U1 ]
8 I& Q& y! Z& T$ T;;每一个turtle的全局声誉都存在此LIST中, X( N7 Z7 f0 e/ p; X3 @6 s- I
credibility-list4 ?( r. T6 Q9 \6 J; E
;;每一个turtle的评价可信度
( `, n+ o$ g4 v' V3 o0 w$ Ehonest-service. I: y8 z# }6 h+ K* H j O
unhonest-service6 R& ^5 L; L5 e
oscillation: s7 t* ?* y. o
rand-dynamic9 V& Z! l- ]- O0 j! K7 Y
]3 A3 `- v0 B- T. k$ @* v8 _; H
7 l- A6 a6 R r# c1 I7 O
turtles-own[
) h: A% W6 g5 etrade-record-all% {6 B. g3 g! T! t" j5 h# V& i
;;a list of lists,由trade-record-one组成
: a( b% B G* ptrade-record-one
+ U5 l) @3 t% T8 H. ~+ C6 L% `;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ v/ t: F0 e5 V$ X6 F" W" F' V3 q9 b) f& A7 \) |3 x7 C* a t
;;[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]]
a( g; W5 O4 d$ u& D6 y; a0 C% x/ Ctrade-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]
+ Y' w: H% v- l; R7 ?% P: k E& s( acredibility-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
1 \1 i6 l: m f# Z" Q) jneighbor-total
- M6 Q2 F0 `" P; U- b1 o;;记录该turtle的邻居节点的数目
. L5 w8 f2 `; @/ {& Ttrade-time
+ d* O( O X! L4 G- k# D( r& A;;当前发生交易的turtle的交易时间1 `% o" t& q2 m. G& D ^
appraise-give
& t$ k' _! _& A- w( d* c9 z;;当前发生交易时给出的评价
9 ]8 Z9 f' F& {appraise-receive
0 v9 J' S, s" `! S. k% o2 x;;当前发生交易时收到的评价( |1 t) D0 j3 O& k# \- x4 _
appraise-time/ G" v, h. h" ~6 R) M4 Y
;;当前发生交易时的评价时间' f8 L' k2 @& q+ |, e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
. x# y% I, j5 T, c1 n! ^trade-times-total
5 S: c4 D: x9 G; w0 v! Z;;与当前turtle的交易总次数( z ?9 Z& ~3 [, r+ s
trade-money-total
& x! h/ q: n) o5 o5 l# h. D& U;;与当前turtle的交易总金额% s8 K6 X/ w# M6 E1 @& x
local-reputation. Y6 k! k+ R0 W6 o: W% g
global-reputation
/ M( y2 w% T$ q7 N3 C7 Gcredibility0 C7 R; b- R# [& Z+ S4 z
;;评价可信度,每次交易后都需要更新; W$ s- s' F, l: y+ b8 Y% v/ P
credibility-all
6 |# o$ c: D6 {;;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 g: Z% y, P8 f+ n: u3 N$ |
0 z8 k9 N0 I3 a& w* |' Y2 ?1 O& F
;;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, H7 D3 H1 [( B$ n7 i C, }# R
credibility-one( S; M7 ?# |' J% F' Q, Q
;;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 f4 ?7 ?3 D$ e7 S4 e$ ]1 z+ r- fglobal-proportion
3 o& ` e9 R7 ?6 ]7 ucustomer+ D0 l; J! M2 h. \3 e: @! p k
customer-no
1 z# D9 K! B! mtrust-ok
/ Z" h2 M/ \; z* w" I$ vtrade-record-one-len;;trade-record-one的长度
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" M8 M8 i' B! \9 E7 U4 p
;;setup procedure9 n; n! ~# W5 t4 q0 k0 ?+ B1 t" e
6 ` {3 P* Q- l6 _
to setup
T/ [% D. T+ Q% U" z0 q
. X9 X* |3 I9 o$ _) A' b. Q" Aca
# |: C1 n& E. {& W) k
$ n4 w! ?5 k4 ^3 F) {' s/ k+ ^8 Jinitialize-settings
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/ ]1 Q1 O1 J) ucrt people [setup-turtles]
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reset-timer$ d `+ z) A/ p8 d: |% E3 Y
4 J, J1 O) M/ ^) u$ z, a
poll-class
: m( i3 `4 c; J1 G: F2 h: \! v
( ?: ?% V7 N5 B% }! Q# y+ rsetup-plots2 k3 v& T$ X4 l, {
& j, f" D$ ^( x4 z
do-plots2 v, ~/ \/ {4 r
end m4 b% A9 ?' q5 {
/ m. U9 i3 @# W5 d7 y- x
to initialize-settings8 Y. d- U$ J+ i0 C) @9 C9 L+ a( X
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set global-reputation-list []9 \8 e2 y) y! z6 A. i( x
+ T( t& v! h0 B+ j; O' ? q
set credibility-list n-values people [0.5]7 p k. A2 d" g% k5 w Z
; e- ~' C. i x0 V" T, @set honest-service 0
t d1 [" l4 Y! N
) a7 ]; i+ [5 J7 ~5 a7 ]3 ^3 fset unhonest-service 0/ F. I9 n+ ?! s5 F0 n/ B& `3 f
; E+ a7 p8 [/ X. L: d, Hset oscillation 0
/ m7 ~* c' y* ~4 D( L0 T2 }
" B* \4 R3 T) g7 Gset rand-dynamic 0- M( [6 B5 W g- A4 h$ o5 M+ B, v
end- L: N5 t* S8 Z! I% [& U9 i
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to setup-turtles
3 {4 M& |' Z8 l" Gset shape "person"( C9 v1 i/ T' S D1 d* K
setxy random-xcor random-ycor
; X z* ]- Y0 X0 b( Rset trade-record-one []2 W) O7 c3 v5 v! S" t4 m3 F9 P
2 w# w4 V$ F* h& G- i- f
set trade-record-all n-values people [(list (? + 1) 0 0)] ! u0 b+ }) t& l
) q% z2 \( ]* X# z! rset trade-record-current []5 j* l) @, U8 w7 G" w( Q% Z& ^
set credibility-receive []4 E$ h) L2 f, d9 {! K! ~6 R0 ~
set local-reputation 0.5! |$ c1 G0 n: g) H- Q' H) G h
set neighbor-total 0
# w! B, { W+ o( I( f: Z) t$ Dset trade-times-total 0
( @3 p6 ^& |9 V8 sset trade-money-total 0& @& g$ U+ ^+ }9 ^8 e. ]5 N4 N
set customer nobody& \- h5 o% Y1 P: _+ \7 b# ]$ V
set credibility-all n-values people [creat-credibility]& J+ R* M* |" b! S; }1 k, N
set credibility n-values people [-1]
" G8 c: f* g! n. o7 }) mget-color8 q4 q4 I8 r6 E
! ]) m# F( u6 V9 m' G% Nend
! F. \! B% v M: C( c. Q% a4 _+ I( ^8 S W5 \" p0 Q% h
to-report creat-credibility
+ J" Z7 B+ Q. L; W6 b1 l/ lreport n-values people [0.5]; w: ?2 d' ~3 d- o! C3 b0 J: F1 }
end
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to setup-plots9 Y+ E( P$ n4 x J$ S) Q
7 X4 `+ L& o7 T2 l2 @* U4 N! e2 rset xmax 30
Q+ q/ v9 W0 \: E2 A4 e
1 O2 Z& q6 I+ a( eset ymax 1.0
: x0 H8 q# O# ]* _+ e$ j7 b4 ~3 n' [! X0 H* u8 u0 S
clear-all-plots6 n; Y0 ~% n9 V4 e H
, m7 ^# J# ^/ F/ gsetup-plot1% L$ t5 k3 E6 G' z! u" F
8 q7 t) F- a7 [. n% h2 }
setup-plot2; c7 C8 A- L) m$ M/ l
R) W9 g n/ ?( R. hsetup-plot3
' ^. P2 w& ^4 Rend4 ?$ _: M+ T0 Z
0 ~/ y/ V& l0 s) }& V! P8 v9 X;;run time procedures, M9 Y/ q# p: m' k5 f' y' q) z( t
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to go
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! `4 d6 \9 B: l7 L' eask turtles [do-business]* r1 X' m! ?* m1 j. _
end' ~# E5 I* f# h
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to do-business
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% d6 a3 v0 X( y# ^- l$ R0 Z
- e X" R# N4 X) R9 Grt random 360
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" ^1 G# i, P1 `* F! {. ^! x% dfd 1
' E4 t+ ?, Q3 Q! u" ?8 _" i: J. g( w6 n* v" t) P# n
ifelse(other turtles-here != nobody)[" o8 m; O# o+ S3 P: c1 i
. V% z: q. U0 Yset customer one-of other turtles-here
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& V' j- z" f7 d4 @* n, E;; set [customer] of customer myself
% C$ f3 P0 w6 a9 j
$ s2 D3 `& x. Y |+ e4 vset [trade-record-one] of self item (([who] of customer) - 1)8 q- J7 B; ?) c0 H
[trade-record-all]of self
6 ]* P& S# O# i' ]3 v1 h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 i- v& j3 v0 i
- [9 U4 g- l, o! P6 }set [trade-record-one] of customer item (([who] of self) - 1)
/ L$ ~( p4 C: X! _' Q[trade-record-all]of customer8 _4 \8 e/ o0 _
( o( q# I; n1 l6 D# ?/ F
set [trade-record-one-len] of self length [trade-record-one] of self
3 Q% H. H, ?2 U: W
. C' {. x, E% C) vset trade-record-current( list (timer) (random money-upper-limit))
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& T1 p1 N+ u7 zask self [do-trust]& H4 N5 }# W; J* z8 f1 q6 x0 e
;;先求i对j的信任度9 i1 v' U" n0 U' \- g
' l( D; h3 X7 k1 R: f
if ([trust-ok] of self)+ s6 X: ~' w1 h4 R5 Q+ i
;;根据i对j的信任度来决定是否与j进行交易[+ S( \" C2 N$ L a" V7 L7 T
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ {- U w. v# L! W% |
, z; y4 l/ P4 A; S4 M/ O2 U[& ~8 Q$ c( m. k& l& r( Q
( ?& ?8 N# q3 J5 [
do-trade
d: @; g _, ?3 Y3 h7 ~, U7 W6 t7 `/ m) r
update-credibility-ijl8 p `% C% b) h7 W9 V
9 W+ C) S; g8 X* c, Nupdate-credibility-list
" [/ t+ w& k2 [( V; m# t
6 z9 G- m0 \/ ^. Y$ a H) s. A5 X* y( K7 T K1 J0 K5 c: z
update-global-reputation-list/ y& f" N' C) ?# T$ z
' g( p+ r# \# G
poll-class
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; C( X- [% }1 H" R4 t' p# n) zget-color, r; x! j& j# X1 t8 F5 r
+ d6 j: r# B- c
]]
8 D, Z, ^( k3 }" i6 T9 ?8 a1 ]: K* n9 K: A6 Z1 \* V
;;如果所得的信任度满足条件,则进行交易) i+ B) z7 H4 D% U v. [2 x* |
" V4 w5 Z: l& U3 {$ V6 J[
6 Y% f$ G/ }5 z8 w: q* L( r, y% b1 Y' i4 b9 k& @- k( v3 a
rt random 360
" t" C& w! Q& X+ [, ^
# x* ?9 x7 s$ }" ~fd 1
5 d, ? X ~' _: e5 {1 c; r
) o* b' v# g; a7 ?]
( P) T* p# p$ k' q% s/ s# k/ G6 Y# z& G7 [4 X8 x- Y
end5 N( b/ k# m3 F- q) ~
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to do-trust $ k' J& N2 t- e' z3 V' @
set trust-ok False: p5 u- }7 }! h& T* F6 K3 H
: L8 [9 ~" `. K2 ]
" t( t- g5 _$ r1 [
let max-trade-times 0
" F |4 }) N2 ^3 z' Vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# s* _2 S: }5 j8 V" D# n
let max-trade-money 0$ {; y! c5 Q* f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
v5 W, c/ ^" v" e; N- xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& q- O& O0 E C6 `: R2 c9 H, d# a
$ ]" o% G( _# e: w
S4 A' Y( A2 K0 i+ u% x7 [get-global-proportion) x7 W4 z2 u( |" `! a W% |4 P0 D9 T
let trust-value
8 b8 {+ d6 c6 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)
. I. q9 v" C" K$ ]if(trust-value > trade-trust-value)
) z! f; g; F: K[set trust-ok true]" a3 ~; P; ?: s6 y
end
' V0 ~' ~. x2 F5 n2 T+ p5 w0 ]6 l" E
to get-global-proportion
. B( v6 I2 T4 d4 r- G- _1 `) Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 [1 `0 t7 ?7 L0 q+ G$ k[set global-proportion 0], S7 H% I% ^0 c0 [ S: ]! b
[let i 0
, p3 G7 f9 [; B) `- Elet sum-money 0
5 T# |: u8 ?8 K, n* @1 E8 V5 Xwhile[ i < people]& \7 |, q1 H* U1 u) z4 c( X
[
' C. I' F+ @) gif( length (item i0 C1 R, o# p2 D$ \' ]9 w0 G
[trade-record-all] of customer) > 3 )
: d4 p$ W3 `9 x( G% F: d[( q6 I7 c6 Z- U; Z' ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]9 K: Y' r2 c/ ^
let j 0( p5 E, n( u- S$ `' T& @4 }7 b6 E
let note 03 K- @% D2 Y; m, E( B5 P& B
while[ j < people]
8 x6 v1 k! y" K; W$ Y# B[
. ]+ Q4 z0 ?, j1 A' B/ g6 O Qif( length (item i
3 c2 }2 u! P! C* {: n' h9 Q[trade-record-all] of customer) > 3 )
- Q9 C( u; W# k. D[
8 I& `- z8 z* I7 {- t; `7 e) rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) O. k$ F, l3 ]; P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
d) ~; J* V* T- o3 g- w+ V3 t+ i[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& I' Q6 T1 G% @) a% q7 Q
]% C/ ?2 d% x' r% I
]
( J+ W! f- d; ^) {set global-proportion note
/ |8 |1 R' N9 J/ p A3 R4 L, h, M]
1 \: N1 B$ t- G/ y- L) ]end
4 s0 `! K& u+ `- `+ v* J7 \7 t. @0 G" N
to do-trade
( B& [9 _1 c2 `! x;;这个过程实际上是给双方作出评价的过程+ E, i; @$ x' S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 _- F2 h: f" t: `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 J: ^. H& \4 `1 ~/ N% X7 Vset trade-record-current lput(timer) trade-record-current
9 P! R- _+ {" u: y;;评价时间
- K2 i3 ^* S4 Uask myself [
* e* D$ q3 }5 l: ^& [8 q& \update-local-reputation' W: M3 T& L. n# K
set trade-record-current lput([local-reputation] of myself) trade-record-current/ q* F9 @* \0 x- |4 b3 K8 S
]- h p3 _( m3 T9 }; J- q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 d2 F; w" H0 r* s3 I/ Q;;将此次交易的记录加入到trade-record-one中5 p, z. z N; H* l' x& P6 C
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; ]2 y7 p2 T" H9 }4 U& e: Ilet note (item 2 trade-record-current )
0 d4 x. m# }5 b( _set trade-record-current# U- U" n0 L# h6 E
(replace-item 2 trade-record-current (item 3 trade-record-current))
. r: H8 K3 f( e7 J3 J. \set trade-record-current
: q, c. [( m* `) E! F+ a) d(replace-item 3 trade-record-current note)2 ]- W7 v7 k& c0 N- q; P
- u- \! `4 m5 z
8 H: I3 J& d' q5 ~* C
ask customer [7 x% ?! A7 M. {) K
update-local-reputation. C2 U6 f- ?) Q% c' w
set trade-record-current
" I+ Q5 a5 _1 h: J) ~' \(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) p: F* X, `& z- @% e]
$ T$ a7 J) h. i D0 e+ Z$ w6 t8 D( O# F: N% T% G O
7 n( J6 i5 L. ]2 c: H6 z) M# Tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 ^) Q/ |, y3 s) v; y" T" @
/ b# {% ?6 y& O+ ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 ?; e `, X" e3 m" N- _/ L;;将此次交易的记录加入到customer的trade-record-all中
! R0 P7 z. I0 K* u# h7 U6 J3 I, A ^end* l+ a9 @, q- W( C, m3 T
( k/ V: a" M O! p/ ~# D
to update-local-reputation9 R# K/ H, x7 k6 I
set [trade-record-one-len] of myself length [trade-record-one] of myself( L. J" k' x6 c$ r9 E
3 s) J5 k! [2 j7 _, O( r. z# s3 L; X. m# W( y0 P7 w! S6 P
;;if [trade-record-one-len] of myself > 3 9 D2 o0 R& e' Z; D
update-neighbor-total6 z! h: X+ ]: x6 h6 Q$ M5 C* V# N
;;更新邻居节点的数目,在此进行
@4 m* h' P# D" Q: Q9 [let i 3
! |4 G. ]! r! @. W( b, v" Ilet sum-time 0
! a" ^ }7 Y* d# m# _$ Nwhile[i < [trade-record-one-len] of myself]
7 m9 a8 A8 J& c& E6 b. Q/ J' l[
2 a, F7 H" w( I; p. Q7 Xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ G' m# z* n- G9 l9 |
set i
0 c6 H2 u5 K1 ~. ~" A1 N! L( i + 1)' }6 v8 H7 B" e: ?1 z
]
9 \/ H" t! l; g/ _4 K) @let j 3
, p& p; A0 K& p( ~let sum-money 0, D4 X1 d3 \; r2 i5 q7 O( E
while[j < [trade-record-one-len] of myself] e: x7 E# q! z
[5 \6 Y+ b+ z l4 R6 @- B) ^
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)
$ C3 s* q( W6 F, \set j& t. }+ z" o: P7 z2 ?( q9 c' b0 d
( j + 1)
9 {' e. j F' d6 _# B+ e' ~ O: I* R- p]4 |- ~( i- y9 } x6 e8 P5 Z
let k 3
: }5 K& B' }' Alet power 0* |% V: ~; C% J8 _) j
let local 0
* {3 `1 I: y! ?, }7 Uwhile [k <[trade-record-one-len] of myself]
- E9 |! y/ n3 g4 K' g9 t* w[
( F t% S4 w/ E/ J* X9 ?' \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) $ g& E2 u3 ?/ Y
set k (k + 1)
+ I" k& F/ q# X) ?3 x; {2 \& t]
6 ~$ ^ a7 h8 m3 \$ \8 b7 s( y. y& ?set [local-reputation] of myself (local)
& n0 h" h# z9 J+ Q% }+ w* @end
W+ H6 Y$ S. x% G$ R5 W# ]
. h" g' Z) x' f. sto update-neighbor-total8 D& s6 O/ x) R' c( a; _( @
3 J9 z* \( x7 F: x/ a- [; ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 T/ U! E& C, }; p# b( R) C! N( ?7 C, T( j3 E I$ L7 @5 C, E
8 f0 h3 q' B) Z1 c* |end! n% t1 |$ D2 z# Q
1 S4 S0 ?8 j. I# }; {
to update-credibility-ijl " A8 h* j/ |3 s' h4 |# o" o# m
^( M2 G- h0 K% ]# M |8 w" H+ D;;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。
7 k: z0 R/ p2 M7 w7 N: T! Slet l 0/ `' }, W2 @) s
while[ l < people ]6 L( H" {" G+ i3 @4 U4 z! F
;;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
( ~2 l4 L; C$ k5 p+ t5 n[
5 S3 v/ \& M! k, i! `% X# a0 Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& `& c; Y( I! l, M0 u- [8 rif (trade-record-one-j-l-len > 3)
; B& c |3 T2 i, e[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
) U* s6 M; }1 Q+ B a0 alet i 36 ]" B: x" h) ^' J
let sum-time 0' a5 f# t+ o4 S r+ M8 D' a! n
while[i < trade-record-one-len]* d0 p: m5 B7 s) s! ]7 A* ~1 c
[
9 p& @) L d! Y9 G# H8 U( O+ S4 m+ Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 \, x# N% m( J8 C$ W& U* e' V+ ?" E+ U
set i# g' p' W: `% R7 |$ `: o5 B' x
( i + 1)
+ K2 E) P( ?8 t& k$ q! M! X" \]
2 |; R0 P: A8 G8 `( Ilet credibility-i-j-l 02 x: O. |3 X8 H* M
;;i评价(j对jl的评价)
& l0 ]* P% c" }7 Qlet j 33 W0 M( u( H5 f4 e
let k 40 a3 ?! ?8 `. O* x- o. _2 m5 F
while[j < trade-record-one-len]
* @# e" Z5 U; {[2 ~. d$ M9 Z4 t5 ~0 S
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5 k3 ]4 ^( P! t) t* }
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)% s; X- a& ]* l* D; v' i9 ]
set j3 O- v: K0 J# `* D5 `- A* g
( j + 1)
. M3 T$ [, C- F: a]
9 C m* e4 N- K. Y, S gset [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 ))
! @+ J5 }/ m+ A
$ V+ Y; j# D5 H+ t( r+ ?* X1 W: v
' p3 m9 G+ K4 }4 alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 U" S4 Q B5 r7 C9 r;;及时更新i对l的评价质量的评价
4 P& X8 E2 D1 t9 N6 H' _set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ L: a+ d! \1 J# P7 s; p
set l (l + 1)
7 M {+ I. U. p0 R. e* p- ^. {]/ V* c* B4 i7 @- }' P( B# o
end
5 h' }# k! @; i& ~$ S3 B8 U) k' k
6 c) o% v3 ~4 U4 ~to update-credibility-list
/ t. V( G0 b8 e2 ?7 |' L0 B# tlet i 04 d! [0 E# v& @+ Z
while[i < people]6 k) `8 i0 @* f4 t' F9 o; n
[
3 @( {' u$ X- f6 glet j 0
4 K, B8 s: P, h4 W% I4 {let note 04 A4 o7 w- `( z) _% W& P% T+ {
let k 08 b/ f3 V. M; g0 ~) j3 l! \" {
;;计作出过评价的邻居节点的数目7 L) t( I9 x+ `3 F
while[j < people]
( H! a+ x9 y! r3 V* d4 M2 D[
0 X2 y' v2 j4 _- K. q; \7 P9 s wif (item j( [credibility] of turtle (i + 1)) != -1)
) N/ ~# |3 J( v! j- ~;;判断是否给本turtle的评价质量做出过评价的节点, n7 ]/ _5 I# g# V: {4 S
[set note (note + item j ([credibility]of turtle (i + 1)))
" H5 Y, A' D9 `+ ?# l;;*(exp (-(people - 2)))/(people - 2))]% d" d4 V# j( n, ?5 r+ v' I
set k (k + 1)9 \3 H5 A3 d: ~7 k7 x. [6 A) T
]6 I9 q8 _5 b6 i; l
set j (j + 1) j2 e: n& j. Y
]9 T+ y9 F2 |' p( [+ y' O
set note (note *(exp (- (1 / k)))/ k)
. g/ E* g9 `! P5 V! iset credibility-list (replace-item i credibility-list note)7 W- _* V) m" q' ]5 |
set i (i + 1)
S3 i5 n5 F, C3 [% K]0 i6 Q: t6 e3 X9 I
end
3 U5 e5 y6 |, L+ L; l
% y9 w3 f1 t; t) @to update-global-reputation-list
2 U* c8 y: H, Clet j 0& j. [5 l5 s3 u3 \, K8 W
while[j < people]/ v1 C2 T3 B9 M+ d/ l% K
[
( x u4 S# V' t ~5 Alet new 0
' R3 G1 r! w$ ^) Q9 p7 p8 V: E) @;;暂存新的一个全局声誉
M& j" q; o, E$ Alet i 0, E. k* g: [* B/ r( @+ j+ E2 P
let sum-money 0. o0 m5 Y/ P0 l% g, J
let credibility-money 0; r: W4 g, m! \: l! V6 F
while [i < people]. m" q* B) n0 [5 O
[
# }( \3 B; _" f2 Z# p0 cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 m: f, N: k8 ~& u: {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# I7 h$ I1 {6 zset i (i + 1)) u: k) I3 u) i# @0 B# r
]
( I1 D& R! W3 s. i7 Nlet k 0- ?2 d# d9 h3 p# v* F: ]
let new1 0
3 N0 l4 s G7 }' O) t' ~while [k < people]8 g' K! q: z2 _/ @% D2 z% U8 C
[
i$ c# p' W3 {$ e w4 kset 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)% z# Y' a6 s0 ?
set k (k + 1)$ g' w- n" U, }* X0 `- @
]
9 S* U, k8 ~; `$ l. \7 X# Hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 F. t( [+ j* ~/ l5 F1 X5 fset global-reputation-list (replace-item j global-reputation-list new)
' @ u9 d. z0 \ |) |set j (j + 1)- |: F1 N- B$ e5 [; B; C( ]
]
/ ]9 R' j& u5 i, @end7 |0 E: H, h! B/ E7 w8 g
) q1 p) B; V0 k6 v) Z5 T
[/ o [9 @( V9 b3 b8 i. H
6 Y; a' M) R5 p, y
to get-color
: A' N- K2 @ u; U" C5 Q0 e- ~2 u4 i+ Q% {( T
set color blue
# \# H2 u5 g f4 n; U8 N6 ^end
+ U" D6 A0 t" v# j4 q8 r( z* _' V* T* g. d& O4 W
to poll-class
* {( V0 w9 T: e5 w O5 w9 N! Mend
+ A& z) a- n8 d6 a2 J( q0 {' p+ D1 `5 x, v3 Q% W
to setup-plot1
% t3 D) u6 D' V$ Z y
9 l% K6 V" y# C A, Q' sset-current-plot "Trends-of-Local-reputation"
2 S' \$ V0 G8 v$ K
5 Z e$ ~ o) \* A c8 Q+ ~% pset-plot-x-range 0 xmax- c6 w# \4 i* N+ g
% M$ p! b* o* M5 dset-plot-y-range 0.0 ymax- O k! o4 Q/ d5 \7 X o
end
! H4 R& {. ]! y S* `9 {/ _
8 `4 A$ B; A a0 ito setup-plot2% W2 k9 D( {+ ]3 _
* Q% d- a8 X: N' M, }* B: Bset-current-plot "Trends-of-global-reputation"* ~3 I6 I. o" U5 K' T
! J# V" {8 ~! [; T! O
set-plot-x-range 0 xmax
4 H) t* z3 Y2 Z3 N% Y3 K
8 P# T2 B7 \3 a' Aset-plot-y-range 0.0 ymax6 d% u4 m! _: s4 W: l5 k
end4 q. G: c9 i9 i k8 O4 P4 A: ~
8 x. Z. E; ^" O a0 E
to setup-plot3; g( T) A3 Q+ o6 ? V/ Q
# t( j- A0 O6 G+ ?set-current-plot "Trends-of-credibility"8 ?5 ^; R; E# b+ V9 q* d
3 R: t8 W8 h$ r* ]7 k
set-plot-x-range 0 xmax5 b2 l! N# G7 c! T; C
" v3 i5 N6 i: o/ I) @1 A! Uset-plot-y-range 0.0 ymax5 d5 w0 H5 o/ \8 |8 T
end9 O0 {7 I% P* _: }, j8 N
: L7 R d, [$ V) c! m: Z+ Kto do-plots5 L# l' f; C9 E( a0 d1 v
set-current-plot "Trends-of-Local-reputation"
) ]$ P* f7 v2 zset-current-plot-pen "Honest service"
. ?- r0 D) |0 K9 g2 K3 Kend* H5 r7 G; T- J D6 m) Z& e
2 C) Q% h( A# }; Y8 \[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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