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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/ p4 I. f1 N1 m+ }! D- m/ E2 I' q
globals[
7 Q# J! t* T! q9 \- hxmax; k& W) I" S' N, D4 g4 C6 `( _1 ?
ymax
8 j' H$ D0 W$ \$ Gglobal-reputation-list8 a" J+ o* d9 ~0 P
% s5 E, }0 Y5 @3 n4 c! k4 [5 K* J
;;每一个turtle的全局声誉都存在此LIST中0 O* u9 I5 H& |# @: r" i
credibility-list, B6 U3 W1 D& R( D* z3 [
;;每一个turtle的评价可信度
; K w+ @' P; N H4 ~& n2 a% `; J0 Hhonest-service
5 {, u% w* H+ d! w, o& Munhonest-service
' s4 T3 t Q' A5 uoscillation3 f' y( w: n' l4 s7 a
rand-dynamic
8 d* G9 ~ b) q2 _; e( j" t/ {]
7 ^, ]& Z2 A: Z7 O: Y* |3 t _9 \" ]* n- `$ u8 j4 Y$ ^
turtles-own[7 J4 N! }+ o4 F: A+ I) u
trade-record-all
# W6 X$ n7 \ Q2 W s;;a list of lists,由trade-record-one组成$ b! n% B/ q" s
trade-record-one
1 v+ z' t8 ^. Z) b- Z# k* D4 C;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* J2 {& F1 u# ?; H8 |* E
9 |& D8 n% U: 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]]
+ C& K7 Y! a& b/ V$ d$ 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]+ s& \* h: \( D- M& P/ u" A
credibility-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' b& T# m$ N9 i) g0 z) Z4 Z2 n
neighbor-total
: z1 \6 s9 e/ m; K;;记录该turtle的邻居节点的数目
' u% B& J+ _) F5 Jtrade-time
. D9 h0 O" r) Y+ y;;当前发生交易的turtle的交易时间- l) V: [' y% Y/ Q* M, j1 q2 m
appraise-give
9 a n+ Q2 f6 l8 i2 `; c0 E;;当前发生交易时给出的评价
4 \8 T% Z% @9 w0 G" g f: m6 Aappraise-receive
: G* Z l" Y. A0 ?- ~6 V;;当前发生交易时收到的评价! i& Y4 K/ Z r
appraise-time4 j1 _6 D$ C; x9 i% f6 O9 E
;;当前发生交易时的评价时间* z% K1 W6 X1 F* Z' T
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
' k* Z: a( T2 @/ ^* ?trade-times-total1 g |; P; V, d
;;与当前turtle的交易总次数3 R5 Q5 x( _: b) q6 q( I
trade-money-total
7 |% L& n4 u, f; i1 V;;与当前turtle的交易总金额
1 u# Z. X! ? z( O2 m" Jlocal-reputation3 T( l9 W- B" O- \
global-reputation$ }: | a4 b, D- m
credibility2 Z, D, ]3 v: t5 S8 m" T4 T: i" n
;;评价可信度,每次交易后都需要更新- Y, Y, b* r4 |$ C. p2 H5 B
credibility-all
7 n( ^1 E+ I$ Y0 s. q;;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, G7 B P% d( y0 w
6 Q5 f; F6 K6 z) V;;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
+ q m/ @& B3 A/ E2 [8 a, ]credibility-one
& Q0 ]& |/ V9 M;;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
m' y6 l1 V7 C/ Zglobal-proportion) @3 a! V" [% y4 B% t# ^0 Z& K
customer
2 ~# |* ^* O; s, h& a: d; Ccustomer-no
^' J3 h( C% [5 V7 g, rtrust-ok
1 d; d- B. J" z- s1 htrade-record-one-len;;trade-record-one的长度
. K5 @% ~3 D$ |9 S! N; H& k# `! t]6 H: W D; g3 e, I: \
2 K! P, @1 s( X a3 X9 ?5 y7 [. V;;setup procedure9 O# [: S/ l$ f9 s, ?* d
% j' Q- E3 @5 dto setup$ p& U5 z) v3 ^3 R
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ca
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, B* z% s, M Y5 \initialize-settings
+ b# z% ~* v* h% }* [0 n
5 p% C+ t. N9 Q* u/ qcrt people [setup-turtles]
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) Q3 {0 {8 W% mreset-timer
. a- a- c$ B! j
" ^5 |+ N! l+ g/ Fpoll-class
' d8 ?- u) @4 H- L4 {$ G# _. |: @- g5 V5 [
setup-plots0 T6 k4 t% U7 G! L/ e6 U7 b. l" o \
% m/ R! F4 g, b9 [ c" Y) H
do-plots+ d- f+ q- K2 ]( ^
end
% v" z8 n" U! _" G& I% R% J4 J H1 Q. x1 @, r% S
to initialize-settings2 o( }! [) q, ~1 C4 k# G4 u$ p+ m5 w
+ [+ [: B r! Z& z* Q
set global-reputation-list []
9 z3 J4 q$ V Y+ c5 c2 ?$ d
' _# D3 j l9 F# Hset credibility-list n-values people [0.5]
. y" e+ n5 q! s" l! |
8 `; H" ]( k$ Eset honest-service 0
3 [; I( M* T7 t, K; d+ a) D
2 \8 l* \; f' y D; Mset unhonest-service 0
% j# S8 X6 c: t9 Y: d: B: O7 B: e% E5 g5 m2 {
set oscillation 0
* g `- q' z# i' f) s' Y4 A& q! \
set rand-dynamic 09 E5 Z) u' h' v$ l
end: d( w( g$ w2 S; }$ C# Q9 d
5 ~. q! T. R! u$ b' Kto setup-turtles
1 G& C+ | h6 `, ?6 v( aset shape "person"
6 m4 O9 |" r# d% D9 w" Ysetxy random-xcor random-ycor0 i& q3 }3 ~" D/ _* w4 Q% z' L$ u$ |
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] x7 d4 C! M/ U7 n ?7 A+ l
1 t4 w9 o }; r6 B6 C4 ?% Wset trade-record-current []3 _! M5 C6 t2 k, w2 N
set credibility-receive []' d `& p5 w" M9 T) W* q+ B1 H- `/ j
set local-reputation 0.57 N/ n, r$ M8 C% c+ Y
set neighbor-total 0) o4 x4 N* [& V6 q3 N
set trade-times-total 0
" }4 ^8 a0 T/ u0 o) }! x Tset trade-money-total 0
! {5 X* s% b* U% zset customer nobody
4 e9 ^7 _( i, O4 j0 G& dset credibility-all n-values people [creat-credibility]* O' @2 n7 v2 e! _
set credibility n-values people [-1]2 k# i G2 J, s4 T' q
get-color7 t9 r) Y) | _7 u! ?
3 K$ X" [ w# `9 Q6 j7 ]end
1 G/ v4 A0 @( S' t% O4 _' J' z( g+ o$ R8 w, y- B: S
to-report creat-credibility
@) Y4 H7 }4 Z9 r2 y1 `report n-values people [0.5]: z4 u2 h) \( U9 N
end
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to setup-plots9 L! X$ S2 q4 X5 O' z4 ^
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set xmax 30
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set ymax 1.0% F; c/ m! p; F3 M. e: f
0 R5 L3 P7 U# U! ^6 vclear-all-plots
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setup-plot12 w# t+ f; ~5 F0 o5 N2 y6 S
# E' U l* W% l% w* |( z
setup-plot2( m. n) _# B H5 w$ G
3 K' u+ h0 f) xsetup-plot3
# r$ m4 J$ s& S$ ]8 A1 @! G2 lend, Z, ?( X& P* g6 Y2 r* x
5 @5 M) m$ P' u g. a8 {
;;run time procedures6 G- `% r n$ q3 @
9 ?& V7 j0 }: \! m; W( C* S9 D* zto go
k3 C) ]& z$ T7 I
8 \9 g J) |/ q" q+ s# i) z Uask turtles [do-business]" h# h* u- Z" @, `( k
end; Z I$ x [" d, f
! X0 d+ l! D( ato do-business
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9 t1 T' T0 O4 M# B9 \4 y; I7 p1 `3 Y+ u$ i, G; @
rt random 360
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% g& r$ c3 p5 ]2 W; u* l% w8 r2 hfd 1
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ifelse(other turtles-here != nobody)[3 C# {0 o% N6 V2 ? X" T8 \* \
% r$ {: O/ o) |9 R: a! N- \set customer one-of other turtles-here8 W: t' u! B2 c9 k0 r3 ~
. x; x' {2 K. j. Y# j5 f9 c;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
, V% `3 x: d+ o% j) v[trade-record-all]of self
( Q& q+ e' T- q x# ]) S3 {8 [- X3 C;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 D8 m- i2 s. m# m* e
7 ?! F+ w% q' `9 s7 hset [trade-record-one] of customer item (([who] of self) - 1)! n+ G: X* @3 f$ _5 Y( R
[trade-record-all]of customer8 m- D. ]; Z9 L7 a; |0 Y. G: \
7 O0 G4 B9 K% Wset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))% q6 o! m# U% M0 O
- w3 ? L o9 S- Mask self [do-trust]
( V, w# a% Z# `;;先求i对j的信任度
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if ([trust-ok] of self)
' \7 \1 B. x4 D+ C) F& g4 {5 a;;根据i对j的信任度来决定是否与j进行交易[1 E; H; w6 [' B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 N# o t6 `6 |8 i' \8 [
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0 j1 F$ y2 l. e% ]; U% v, w+ y2 ? E
* S) S+ i& c( O; Fdo-trade
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update-credibility-ijl
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update-credibility-list6 o; m* d4 x+ p# Y
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! C6 n+ h, `1 A1 A$ _* m& Hupdate-global-reputation-list: F( {: q5 n2 M9 n
" r/ c/ O( Z3 }/ k$ t- xpoll-class
) W6 D$ i( \% W% L: C8 l! V: i* ]! W! E$ `9 y
get-color, H6 R! o% Y5 q' C: k ?
9 E) R2 z% C C* _8 C) T( S/ ], h
]]5 m: Y0 @: _" @ e6 K) ^
2 x3 ~7 \( E8 g3 g% |( ]3 L
;;如果所得的信任度满足条件,则进行交易& [0 r& e3 k6 j6 Y
; P$ \& U$ P) ~6 v8 E" g[+ H$ b$ U: v! }" }
& L" ^2 e+ L, F% G1 C7 h2 Xrt random 360
) R9 M# F' _# ]1 g! e4 c- N
/ D; G3 s) B' t3 U, N- J- _fd 1' n5 r+ T' q' Y+ ?% k
) l& R) P+ R( U
]
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. i% K/ M0 b9 u' p' u3 `end, M7 n+ G0 f* Z4 ~) U
% ~: J' P* r& d' {4 R- h, @# Fto do-trust $ v& \# y% y9 q$ O4 s- t0 m
set trust-ok False4 P# d; y9 r4 V
# k& a# }& I8 q' \
5 ^4 r# `8 r* M" s2 Hlet max-trade-times 0
6 E+ n/ \3 E: bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- f% D# g. R8 `% v
let max-trade-money 0
% { B8 k, g# P O3 Q+ ~8 iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 d) Y* U7 M: u5 E* ^5 H3 z3 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))
e6 U+ h- q, f4 _0 d7 b# n B7 P+ C) |4 }5 O! h/ o* w
9 T: f. S2 ]7 P1 h- b, I( J1 ^$ m
get-global-proportion6 t5 o( x& C" P% M6 @
let trust-value
& h# q( T5 T# M0 ]* I+ Tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)/ v- f# g& L3 [# d3 J/ [6 ]& w7 }1 I
if(trust-value > trade-trust-value)
' B) X! E4 w4 t( h[set trust-ok true]
! d$ t$ |. g6 k. Z/ f2 r$ uend
: J% S7 {8 h( \ ?& y! ^! w: A( F: @
to get-global-proportion$ O' E/ l& t$ E" r/ A
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. W2 }( R% Y c+ I7 _# Z" M[set global-proportion 0]
/ N' C, {5 s1 O% z0 a0 v8 Q4 ^[let i 09 |# B$ [+ r" C/ F+ w1 [( X
let sum-money 0
# Q( Q m/ H8 {while[ i < people]
, S% \ F6 _ ^$ b[3 D" l% l8 L, F5 P, o! ^4 Q
if( length (item i
) O. b" i% N0 C, M) q; s) G% L4 y. r' m[trade-record-all] of customer) > 3 )7 b$ {& ^; ~: v% i- c
[( r% T/ J, P$ f& v6 D
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 o5 K& `% D5 h. ^
]
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let j 0
; u5 `) _) A7 `8 E7 G$ xlet note 0& t# C/ l+ y; ~5 ]: [# n2 F
while[ j < people]
. r1 _# j0 a8 {4 W2 ~[
. l4 P' g2 y4 s9 U8 N: T% c2 G* z& Vif( length (item i
: _7 H" Y7 J# R' C1 W7 K) U. L; V[trade-record-all] of customer) > 3 )4 ?: G& ^, @! t! A0 h. z: a
[
5 n1 `: V( `0 yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ {; Z" U' g0 z- ^, N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" z8 F9 w1 f* v: p" J8 ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( e% q7 t/ a2 y( y# }
]
( q$ J/ f0 {+ G]
3 |( I- J. K- N( Vset global-proportion note
% t2 J& g! a/ \; N% K$ m]
. F* T& j" f/ E" y0 |8 _5 L4 ]end
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6 v6 q1 Y1 o( @7 ?/ ?0 C/ C% uto do-trade) w$ _9 z) T0 A6 _2 @* @9 J
;;这个过程实际上是给双方作出评价的过程' L8 o* O( m6 m; \ W. C* Q4 \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 @$ q( ]5 E1 v& L& `( o3 A. Y2 O1 oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; @+ ?: r% Z( @+ cset trade-record-current lput(timer) trade-record-current4 B$ Z/ z: A; Y; t; z' b) b+ L. S. ]
;;评价时间
- B) a/ {4 l S- u8 J. cask myself [1 Z2 T3 E0 a4 K$ `' y
update-local-reputation
$ V& F0 z+ X0 P( T2 V( }& J# kset trade-record-current lput([local-reputation] of myself) trade-record-current
9 C2 a5 i- ?8 }: Z2 }" D" W" R]
' ?; C" Q9 \4 B& ~6 p1 s9 aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: l% L3 H7 g. V& x9 D. Y' e
;;将此次交易的记录加入到trade-record-one中% J' f, e& w6 [ ?
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( ~2 s N: ^; ]; G
let note (item 2 trade-record-current )
( l, K e2 {) j7 e2 o0 aset trade-record-current
. ?( d4 E9 X1 \ ^0 C(replace-item 2 trade-record-current (item 3 trade-record-current))3 L- T0 T6 w' ]: A7 e) f
set trade-record-current
" I8 V5 U1 _2 u(replace-item 3 trade-record-current note)
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. b" y$ ?3 ^- m$ f; S$ W/ l, H; e" H
ask customer [3 w7 }$ N( @7 E: {
update-local-reputation( s* L* _% b b' p* Y) E
set trade-record-current& C( b \6 g& R; L9 \: l6 x# Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. \# O9 v3 P, x; b]
6 _8 D w7 [' Y/ w% n9 {, W8 L) Z, _
4 j3 {% A/ t3 D& ]2 Kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 ]8 P/ M4 p. i- \( e% p2 d; j
;;将此次交易的记录加入到customer的trade-record-all中
6 j T* K" G, ?* `1 Q( E3 pend
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/ h9 d) u3 G# j/ C+ ?- \) Uto update-local-reputation0 I- }7 g" [ B5 i7 H' X. L
set [trade-record-one-len] of myself length [trade-record-one] of myself
" q. d, U2 Z' ]- b; I* a0 {& j- r4 }# n0 O, L/ u4 y5 L/ ]8 n
R; h, J; p. F5 ~5 ^;;if [trade-record-one-len] of myself > 3
$ f- q% A9 D/ T# q. b1 Dupdate-neighbor-total; x/ s4 a2 p3 s: e7 |* T7 Z) y8 }
;;更新邻居节点的数目,在此进行* q; k8 S5 S) x
let i 32 M4 ~! a. L3 _+ @, p1 p
let sum-time 0$ J* M/ G6 d- L
while[i < [trade-record-one-len] of myself]
% w6 h8 B& Y( T5 v0 g! ^. d[8 Z B4 c1 d& `$ S% ]1 H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! S4 v' z/ V5 b) S! _. x* tset i
, P, `& }- c7 D; Y1 ` m( l8 K1 {( i + 1)" k: ?. B( S+ `$ ^8 w
]
* n- F* l/ g- _% O& E3 r [) Clet j 3
) O, ]! p" D. m7 I. c; o( `let sum-money 0
* [2 c/ e* V& Ewhile[j < [trade-record-one-len] of myself]
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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)- A0 s, _2 M5 `. A0 V2 T1 l
set j
6 A% R' Q4 R8 W. i X5 ]( j + 1)
9 ]- S, Z: i6 L* o$ Z8 g h- t7 i+ y]
9 D N* R4 P0 d. D+ Alet k 35 w$ [4 Q1 G$ l5 ^. t; R8 U
let power 0
) h; R; M8 c2 a- ~3 W& C! wlet local 0
: @! U; x6 @' hwhile [k <[trade-record-one-len] of myself]
2 L: Q5 h' X H0 u/ X[
9 v4 H" R0 r9 w! o* N Fset 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) 1 M7 [& F2 a8 f
set k (k + 1)% J; X* x3 Q# ]9 L7 q0 F
]; ]; y, o; `+ U+ c/ d
set [local-reputation] of myself (local)1 q" }' k0 n$ p& F( @" [ s
end
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( I- T) g2 }! Lto update-neighbor-total* b6 g L3 F4 O0 C1 `: g* {% O
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ S# P: L! p9 w( z
end
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to update-credibility-ijl
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;;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。
, N! [/ [4 U9 |7 p0 Vlet l 0
8 j( }) C( ~6 s, Bwhile[ l < people ]
, J0 q5 [2 O: }! 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& _1 [- L& H! l- k+ @$ V# ^
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)# V5 \( v: H8 Z O- P- v, b
if (trade-record-one-j-l-len > 3)5 [& N1 w' h# y5 s' }3 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# Y- D2 u2 H3 s; U+ J) t% I' X
let i 30 P/ V) z" B' Y: v* ]" _! M+ C
let sum-time 0
- `1 O$ e1 f3 }! q$ K6 v" hwhile[i < trade-record-one-len]
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4 I& w/ f& P n' ?. T4 x/ xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 V- |" @# Y' R& G( K! r! b
set i2 x8 l1 s. B+ P% X8 h" B
( i + 1)
0 k4 b# f2 f4 L1 b$ k2 x8 \. E3 f]6 m9 ?( C) W; f+ R3 Y. @+ P T
let credibility-i-j-l 07 Q d6 C: _% s: w
;;i评价(j对jl的评价)$ z/ t2 R: W" ]0 t% [0 n3 x
let j 3
/ i5 H, ]. ~5 ?6 d0 R( Clet k 4. }4 h& C& m7 G. N" b
while[j < trade-record-one-len]
' j% S0 U- u! V2 C7 `[
6 R2 f8 x' b! w* C8 I) iwhile [((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( V* a* H4 M( k# G9 `; M) [* D% I
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)& {6 _% ]9 O5 v8 `
set j9 Z/ ?4 q/ X% n
( j + 1)
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' ~7 b9 j/ }8 U, u+ C- ^: G; l4 bset [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 ))/ \/ `* H8 L- l3 K- k: ?6 B
E. P( ?9 q# u, W; H' V/ X4 m' R& q
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 M7 V; _" S. }! O;;及时更新i对l的评价质量的评价
6 l6 ^6 v. T; w# J3 h0 N% gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# @* q% ^; g2 S5 i( U6 uset l (l + 1)
+ u$ p6 [$ g" }]
* T; c5 s' f4 `+ ~* r" E9 W1 t3 V" `, rend
* N! R) q7 ?2 ? L5 r
' Q' }, z4 `/ u9 C3 p. cto update-credibility-list4 m: J8 f, C- n# f
let i 0, M. ~2 \7 x( v6 f
while[i < people]
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f5 L* L% G( C$ c$ g" {9 k5 ?let j 06 o+ P: I$ S7 |& M j6 z
let note 0
: h8 m9 M* Y2 W; Zlet k 0$ N1 r, f: V! x" a! p8 @
;;计作出过评价的邻居节点的数目. J i0 a0 |% G) r; D4 ^; C$ J
while[j < people]/ s# v e# v) {! O
[
! L8 d- p: v0 G- m! vif (item j( [credibility] of turtle (i + 1)) != -1)6 v% H& Q4 f- h; |( J
;;判断是否给本turtle的评价质量做出过评价的节点
: _+ l$ A$ Q$ d2 ~0 K: `/ W% V[set note (note + item j ([credibility]of turtle (i + 1)))! F* m& O9 V2 o4 m) a% ]+ P
;;*(exp (-(people - 2)))/(people - 2))]
' F: W( g7 G0 d/ Z! R8 M# Cset k (k + 1)
z9 ]1 M' Y3 A: q9 K( w]
0 Y K. p3 @2 G1 o5 {6 Xset j (j + 1)' c! r$ I. M/ g9 [& s3 p# i9 ~
]+ B$ U* S: l: H& C1 J0 S9 k
set note (note *(exp (- (1 / k)))/ k)
/ V/ t0 Z# N- U( K& }set credibility-list (replace-item i credibility-list note)) H% j- v9 L1 q9 x
set i (i + 1)8 @% J! o+ A- Q4 v" h" d$ `
]. t( `: G4 {) g, f6 Z
end
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) `. [2 ?! G+ r% A! k! Vto update-global-reputation-list# L1 x4 m. m" h# s6 Y- ]" P6 w
let j 05 M, L! H( {+ @) d
while[j < people]
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let new 0+ x8 [8 W# W8 T; ]. W& `
;;暂存新的一个全局声誉; y3 A# i1 D, k1 Y
let i 0$ n! q4 y7 @+ r; O. i9 g6 u5 a
let sum-money 0
8 H9 N+ ]1 f8 m' Y3 Z# U- Zlet credibility-money 0
: Q" h8 V- Q: T: b/ X* dwhile [i < people]4 T# y+ w! e7 q
[
( B6 n: z' e3 b D% o5 Q/ Iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 `- ]7 `4 V, N
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ l/ O, U1 ?0 m0 f1 d( d
set i (i + 1)
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2 p! r. s: w- j4 Hlet k 0
/ \7 n2 n- a L, [" Wlet new1 03 X ? r0 R y ]7 W
while [k < people]
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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)
3 Z* u) |3 F* eset k (k + 1)
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1 i2 f1 V: S# K6 G" ^7 o$ D! ]; U mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# \* X' P3 l5 N+ o& xset global-reputation-list (replace-item j global-reputation-list new)% z/ p( s6 W6 d) l1 M
set j (j + 1)
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end* ^( \2 \2 j- z+ H+ C- N# \9 F
7 m3 d$ R; @( n8 [6 m; i2 Q# u
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" {! q# d% @8 @8 ^8 ^to get-color! I! _; |8 k- m- `# t1 _6 n7 ~
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set color blue S, K. G( q$ e( n% M) @5 ?% C
end) x2 q7 \& z% y
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to poll-class4 B \1 V1 F% f2 \9 F+ j: ?
end
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% f: \ l/ P6 {! o7 R Jto setup-plot13 E* H( p- `6 B4 ] H$ d6 U1 ~
$ F5 N7 O. S$ h$ j# qset-current-plot "Trends-of-Local-reputation"
- E5 M# Y6 r: w1 }
# k, `4 }( ^& }! j% q/ E6 Jset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax) q9 k$ z3 Z2 T0 i7 `0 q
end
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to setup-plot2
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set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax; J# E2 L6 B1 ?& S3 o7 t9 `
. Y: d; ]) g3 v. ]: f3 @
set-plot-y-range 0.0 ymax
2 u& ?* K; _+ X- x& T1 Cend
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to setup-plot3; o, [, s) q$ m( V2 I0 R( h
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
" l$ h; M0 T6 C5 h$ p
6 h x! b, A) ^& eset-plot-y-range 0.0 ymax
0 q2 u! T* }: Z& B$ ~2 a( Tend
U! e; I# j5 [9 o8 L4 R, d) O/ _
3 j! a! F1 j/ l. l! [* k8 Wto do-plots
I! C3 v) ^8 Xset-current-plot "Trends-of-Local-reputation"
Q; L6 m: l) e4 M0 c# X# g7 m& fset-current-plot-pen "Honest service"
0 ]9 ~. G' r, h8 e( { U6 f- Tend
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. L3 W) z, }7 K7 u[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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