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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
+ C. ~. k9 z$ C, k! V7 g/ m: Pglobals[, X" u+ F7 O( r" }1 E( j
xmax4 P% B: X* A! r' }
ymax7 C0 ~% u m+ x
global-reputation-list# Z1 v! Z, Q$ ~' o
9 K% V9 C; h% N- _2 H1 w;;每一个turtle的全局声誉都存在此LIST中
- E' i6 E: x n# \credibility-list
0 t3 z, u3 G1 H. `# ~, d- X;;每一个turtle的评价可信度
& x3 ^- w. M9 O# J. J( x& ihonest-service
$ Y5 Y3 ]/ @' @ vunhonest-service3 [5 w, b ^' C/ k: b
oscillation
, N$ y4 R5 b% Erand-dynamic
8 }% f4 ?9 u/ N$ _5 `2 V1 m]
+ D& e+ W( ?4 g2 t; E* U
- k9 T0 i( a' D' S: B$ z: [turtles-own[
# G) f2 K+ a* |+ X1 ^( ?' htrade-record-all: |% s. H$ m% I
;;a list of lists,由trade-record-one组成% b E, u7 k6 z/ g
trade-record-one0 r# D$ ]% v: p1 @8 Z/ Q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 u, `( e; w6 e6 G7 N2 v9 n
) p% K6 O! W+ Q0 B( J;;[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]]( r% X1 P. K3 x5 @0 n( {
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]
- A. w: C/ J$ u# k" `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
" X! j2 D8 s% T- tneighbor-total* C8 {: b3 K, a# q" q5 j% g2 K# c
;;记录该turtle的邻居节点的数目4 D& a, b3 e/ _4 M* M0 l7 \
trade-time
: g) j. L/ S# Q' w& @9 r( Y;;当前发生交易的turtle的交易时间; U8 n# V% s# B/ O
appraise-give8 w) N o4 D/ G4 P; H: H* \
;;当前发生交易时给出的评价9 n/ t3 @5 u% {, n4 H
appraise-receive9 K" l* R- M1 x. @$ H
;;当前发生交易时收到的评价1 v2 M: J# }. w( t
appraise-time
+ k1 x. R" K8 W" _;;当前发生交易时的评价时间
7 B# {7 e P$ o/ ?; Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 Q/ D9 l9 F& d3 J3 F+ {
trade-times-total
9 d: V4 _+ p0 |3 Q6 F4 x;;与当前turtle的交易总次数
6 B3 t6 o# i- o: q3 r+ U, b" ftrade-money-total
8 K/ Q1 k( r8 [! v) p( {, k: @* M! L;;与当前turtle的交易总金额0 \* i& _7 m' e
local-reputation
" k/ I$ W6 l( R1 Q. Cglobal-reputation0 Z' \) i9 T6 I
credibility1 ]" e; o) {7 H2 e
;;评价可信度,每次交易后都需要更新5 Z7 _; e X1 g" J6 e
credibility-all
( g8 K3 [" k F9 O$ `;;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
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6 \3 o/ k7 L. O' j;;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0.56 ?# [% d2 e2 e, w( N
credibility-one' k a" \0 \3 U: q1 @
;;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 h: N+ J' v7 X2 U$ ^0 H: n8 G) |
global-proportion
* w9 t4 }6 w, _+ `; Lcustomer/ `- T; Z' E0 k- Z1 @- }& M
customer-no
' _* Y3 j! t1 h" g8 Ntrust-ok/ P' M7 Q( O* R4 b4 b
trade-record-one-len;;trade-record-one的长度
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( H: [) v M9 P& r
;;setup procedure4 { h' K. D0 O! }2 _ x& I
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to setup
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# `& \) B9 B. Nca
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initialize-settings
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! r: G4 N! X8 m0 h$ O: Q: S' Zcrt people [setup-turtles]: y2 k3 A; R" m, h
. _5 t: `' [. o3 O2 s1 b" T
reset-timer
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poll-class1 h9 M* l' S7 S! u) u
3 k* V; c/ |1 P; @* \setup-plots/ |/ N" L# P) d8 t1 `) x% T7 [
$ d% w. x: K9 odo-plots
4 s! p3 { W6 ?1 G1 Wend+ [) |. m' Q& f9 G% B
7 A) w" s; O6 D e7 h
to initialize-settings
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set global-reputation-list []. u l. G- @3 `) |
7 L9 s$ n1 i& p0 x
set credibility-list n-values people [0.5]" f1 s$ U/ R- M3 D) w D- R
3 }, A0 J" r5 m; H$ N0 Cset honest-service 05 W- z# K: P1 B, ^
& p K$ L) a8 ^" d& @! @$ g) X
set unhonest-service 0
P2 F2 y! q; U/ [8 q2 |" ~( D" A8 i4 \0 g
set oscillation 0) l. M6 B: d' d) U
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set rand-dynamic 0' l9 [, ^# k% [- f2 `
end
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0 B/ k0 p6 O" xto setup-turtles 0 l4 b. h0 S" N' x2 w9 ]4 j* H V
set shape "person", @" z% Z k4 B( R8 Z
setxy random-xcor random-ycor
5 f9 b8 S6 z- p7 [! oset trade-record-one []
" C5 } n+ N9 `8 @3 `3 f7 u- K8 F$ {
set trade-record-all n-values people [(list (? + 1) 0 0)]
1 Y6 \0 w$ b0 E! w4 f5 v- Q
, {9 c2 q- D/ a9 M0 c% V+ c5 aset trade-record-current []9 }+ Z$ K" ^7 l. E8 J c" Q
set credibility-receive []7 Y( i; v4 T# S. G' ?' I
set local-reputation 0.5
t! [2 T* h# I, Sset neighbor-total 04 p) n8 T0 @& b
set trade-times-total 0: g3 S. O4 r2 K- I
set trade-money-total 0
3 F7 R" w7 q- f* c( G" D; uset customer nobody
! j X% U; u f8 U9 B0 \6 g9 jset credibility-all n-values people [creat-credibility]
% k J- l2 C) R( h$ H8 Rset credibility n-values people [-1]+ `: C4 z* n0 g- U; R0 n& P% o
get-color1 Z4 U- J( }* `* v3 O
; R& B! O! }+ M7 w' @6 Z
end
6 A5 v$ z0 ^1 b" I
( V; z7 Q0 K3 W [8 w8 ]! U$ yto-report creat-credibility) h0 {! I6 o) n) ]
report n-values people [0.5]
' P9 d( Z/ l0 K3 u wend
$ E* P6 @+ `1 i( |: A! W! W
( I5 b% i$ J' @+ C0 v) w3 N Dto setup-plots
5 k* k' W8 a. {( D( T4 Q
' m/ o" Z1 U0 @& Cset xmax 300 Y) e6 c5 w: b
! z! P! Z7 m5 V# Nset ymax 1.0! G" b$ K8 B5 O l; |
+ T5 ?/ \% P/ k4 V; Mclear-all-plots
+ U4 J, G3 w: `& {% [
' Y) L$ @) H( o3 _- V5 v- tsetup-plot1
0 b1 d2 M( M/ R$ P v7 [$ ]4 c7 N8 ^
setup-plot2 S- C% ^+ ^( g/ c
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setup-plot3- R u7 d. N. C. a4 ?6 Z0 M, C
end
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/ e4 t$ O7 |- J8 `5 o;;run time procedures+ q, k1 F. ]4 H8 V
Y9 {: n/ ]: C; |# B
to go7 v2 _' L3 r9 I }
8 }: r1 a, `0 R* H: w+ Hask turtles [do-business]+ R4 D4 x% |9 o* g
end
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8 _3 Z) p& R- f0 Rto do-business
5 d B2 c. x& i, F4 |7 U! \& N: J) Y1 f( V9 O
+ J& y- y7 }4 x3 T- W( lrt random 360; c1 W% x1 A3 Q2 w; S% G }
; k' B* u* H4 W2 r/ [& H7 P2 r1 Y
fd 1$ f( `% g2 Q2 O% {3 t5 d: U/ B
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ifelse(other turtles-here != nobody)[+ f8 f. V4 c( c6 q
$ ^5 \/ ]. J% Dset customer one-of other turtles-here
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8 Z6 P+ M4 `, ~0 F9 J;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1) V% q- y {( {* l2 e
[trade-record-all]of self. W4 m& N5 _2 P% C, r _; ]
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* A0 c0 r% k" X/ P
7 F. P& P3 N9 n- K0 ^8 `set [trade-record-one] of customer item (([who] of self) - 1)
/ s, E3 p% Q' u# i6 E$ v[trade-record-all]of customer
G- O. a* L- ^; F! h( f! j" }! Y5 c. D
set [trade-record-one-len] of self length [trade-record-one] of self' I n8 P3 _" x4 z9 }9 ?. T# a+ `" c
; J# v _7 q1 J d" t* Qset trade-record-current( list (timer) (random money-upper-limit))
2 E' Z4 x7 N: m8 B
2 d/ b+ k- `4 {5 e n# wask self [do-trust]3 s$ [3 O4 W: R- ~$ b B- e* M
;;先求i对j的信任度
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if ([trust-ok] of self)
: T, V9 e) c, J, m;;根据i对j的信任度来决定是否与j进行交易[$ b { B3 J# \; C# L! w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( [( J$ r A9 d+ g0 C' S
% o1 v6 Z0 o3 w/ p5 Y[. b* L2 G! F& u5 Z" e
4 o: c7 `1 m }. Z0 o! j: kdo-trade4 R/ s+ W9 s/ F$ o) X
, u! H7 p/ h1 iupdate-credibility-ijl( `5 z% \; j) c5 f# }$ }$ y
" f/ |% M- y9 k. L7 D8 @& c- a+ Z8 S/ O, U
update-credibility-list
% H6 N/ w; O7 n, f; Z% o* T6 {+ j$ A1 g9 w) e2 U% @2 {- g
4 Z, q' o- B4 w; B6 xupdate-global-reputation-list9 T& C# o- g! y8 `: [
/ _% j. [9 n* X: f- Fpoll-class% o5 @5 ]9 \( x" G, j9 Z) ^
5 W. S3 ~ T" u9 ?5 E* [; |% |6 Qget-color# d8 d: ~8 O) U
9 C4 X% G! c( ~]]/ S0 s, o" u+ X& h+ a' C$ h
0 B |( d! c, T/ l9 t( \) ?1 J;;如果所得的信任度满足条件,则进行交易
& k. d& x4 ~: w% `9 r: ]: E2 a$ N3 `
[' V O3 X' M6 p% `1 w1 D
( F9 Z h+ Z0 X. n: K0 Krt random 360
0 O& q1 `& Z- }! C" w* t3 w- e$ o( Q$ J+ e q+ @
fd 1
0 w( A; e6 h" ~1 f2 l8 R
: `9 b( @9 ]! e5 n) V$ w]
+ o M! B" o2 f' U+ V( L, v, C& h& V# I" f m
end* V2 L0 W& ?7 J" @- [* O
1 U. x' ]( h# h8 _, G' a( I+ O
to do-trust " Q% Y3 ]3 v8 U2 {0 I8 O
set trust-ok False
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1 c+ r3 u, Z0 F# `let max-trade-times 0
) y6 o+ ]8 V1 {$ [0 x, R1 J" a2 mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ d: t" Y9 l: `+ M# M1 |let max-trade-money 0
1 G% Q. D9 [- d, q8 A i Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) r, k7 I1 @$ y- I% b! k
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ d w8 N0 ^' t, {% L$ u% y( C; i P- N& B/ ~
: k' i+ P- T1 [/ u5 X" M0 ^get-global-proportion8 }* q. @3 W% k2 _7 {* Z
let trust-value
# P, P( w9 R, s+ elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
9 u( ~9 j w7 ?. U7 L+ O. cif(trust-value > trade-trust-value); j, H2 c3 F* l% z# O, K( J
[set trust-ok true]5 `1 P* l) w+ C$ F! T9 P
end
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to get-global-proportion
8 z+ c5 _. Z8 t, @4 Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! F0 h2 k0 u9 c n; h
[set global-proportion 0]# r( z' ^# i6 B5 ~$ p9 M" }
[let i 0- ^% f6 k# s% l9 x5 L% m
let sum-money 0
- ^1 u/ y5 h) ~9 Vwhile[ i < people]: l6 {3 Q7 R$ Z4 O. f B, E
[
! p6 f0 n: ~! u+ Fif( length (item i
9 |/ h" |/ d9 H0 u7 k& I' F[trade-record-all] of customer) > 3 )
$ Y9 K( T6 L# X[/ G% x: L, U% @& y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) L! f7 c$ f1 e4 e) e5 o* C
]
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let j 0" o2 Z4 l- y; r6 B! ]+ @) j" ]' \% w
let note 0
2 R; A8 A& U/ zwhile[ j < people]
4 O" Z \( ?+ Y/ R; Z" v2 G[
! ]# T7 c- W7 Q! \6 t' jif( length (item i
6 ]4 R7 U+ c; _[trade-record-all] of customer) > 3 )1 ?0 P9 i4 A- m
[, k; t1 V$ J4 w) C# [$ X1 Y5 \# e
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- Z0 F; @. n2 Z4 [2 u[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* _ E* }" b7 C' |) y& F( k Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 p+ U5 {2 N7 G5 j% ~
]
! |' ]. b' ?% p( q+ {5 e9 Z]
4 J8 }% D0 b; G u. ^& |set global-proportion note r( f8 D+ d7 k* E. Q% Y! s
]
( I% F5 w: ?) p4 pend
( K1 J. ^( W- I8 s4 v' ]; h* {, e* `/ s$ r" P* k1 j2 l( U$ K }
to do-trade
$ _, {0 t( m% d4 `;;这个过程实际上是给双方作出评价的过程/ r) p2 z9 G1 k, q" ?1 {! ~ Z0 u/ o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: i# ~+ V! E# I X! @: v9 ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& }2 C) R3 ~, E; f4 j9 E
set trade-record-current lput(timer) trade-record-current) G2 y* n6 O* W; C. e+ T5 v5 b
;;评价时间
) E& ?! f6 v% s: v& |- ]6 @ask myself [
6 u$ V% h3 ]+ S! o G$ E/ Wupdate-local-reputation) e& N, _' }8 @
set trade-record-current lput([local-reputation] of myself) trade-record-current
}: @) V( H+ y" Q! _& B]
$ {9 d5 h. c8 {+ H; y c* ^: L- r# rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! ?) z' |4 I. H7 _+ {;;将此次交易的记录加入到trade-record-one中
: ~! `- r& Z/ Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 g( S! O( c9 p6 ^' J1 N- s& m% ]let note (item 2 trade-record-current )
, ]2 D- p; r2 Nset trade-record-current
+ Q; c/ j! O8 ~0 V R1 E(replace-item 2 trade-record-current (item 3 trade-record-current))
! p& M/ v) y" pset trade-record-current
" r+ Z, t; O: P! V5 ? U. ^(replace-item 3 trade-record-current note)
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& J; ?5 ^0 `7 J1 J. l" Nask customer [
* E3 ]2 P6 P9 Yupdate-local-reputation
$ k. e. Q( h: f& |set trade-record-current
c( w0 f# [* s3 g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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* u3 t; Y& g0 y
$ s" r8 L% b" Z0 i( ~ J
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, ~9 N6 e* G+ e! C6 L
4 d9 \- W7 m& f* Q3 z9 Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 ? [% S6 W. i6 r, x
;;将此次交易的记录加入到customer的trade-record-all中3 W# ^; S7 u. d/ K
end
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to update-local-reputation
: r" B; Q0 t: g5 B' Jset [trade-record-one-len] of myself length [trade-record-one] of myself
0 Y6 H0 X! X h' r2 D: F0 `4 w7 M& ]7 A( Q& Y
+ m" `! L/ g5 w, a
;;if [trade-record-one-len] of myself > 3
7 _) A7 W$ I( O. u+ W3 [# iupdate-neighbor-total, o w* E; ?: S1 z: g$ H E
;;更新邻居节点的数目,在此进行- g: F) s) }2 T/ T# W& g3 D" u
let i 3
' y3 n3 A1 J+ }8 olet sum-time 09 {: }) c9 b* t
while[i < [trade-record-one-len] of myself]* _2 w' \) Y0 `* C; M6 s' c
[8 A5 s O0 D" X$ S: j9 P% }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& x# R2 m; R; j) Z7 e. I; z8 Tset i
# ~( E% t9 @0 ~1 m( i + 1)) v3 y5 Y; t. w
]# x6 O/ D6 b. m$ q! Y
let j 3
# `1 {# C5 ?* F2 O) ]9 A. \ [let sum-money 0
* D0 ]( B% a I2 ~% f! Pwhile[j < [trade-record-one-len] of myself]1 Z. R7 [+ Y3 @7 }8 V+ G' G& o
[
( d/ M8 r: I# lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
! Z+ }# }" K# Xset j: Z: z5 S7 S+ y! M* m. `* P. a8 m1 g
( j + 1)1 Y. E/ G" f( B5 K, e7 h! U
]
% X* K4 k& `9 C6 |* j: Qlet k 3
4 R2 H! ^. |& e6 rlet power 04 \' s% p; C+ _$ C. R4 |! v9 p
let local 0
1 }& Q1 H4 N1 Q' ]+ Q+ L2 G) ~while [k <[trade-record-one-len] of myself]( P2 H+ o! H% w' B7 w! h
[
) Y/ ]0 g# g$ u3 j+ pset 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)
- j) k% `. |& ^) uset k (k + 1)
( R, [& S- X/ q- D d0 G]0 {" e4 w( X) d) e: D
set [local-reputation] of myself (local)+ W3 I p# E- y
end1 D j0 z) x# p7 j- r4 v
* p' |4 D0 q% E9 c, T5 \
to update-neighbor-total9 E+ Q' ?4 ?; y
1 o# ^/ {( x/ C9 H1 O$ o9 P3 k* Bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. L5 d) B/ M# y! |
$ p5 i4 b. O% i! b
U! d# q8 U. c+ _- m& z0 c% L
end' L3 x; A* ]) S) J
. M+ V: b% Z5 n" S- E4 nto update-credibility-ijl 5 k* s3 B. H2 h& B
' p9 _3 X% q& L* _* F$ b( g% s. i3 N;;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。, [& w7 c3 v: H% q. D
let l 0
& ^8 G4 I @. T; Lwhile[ l < people ]
0 `. C$ m6 T4 S;;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 ^' @0 o' E$ ^/ a
[
0 }; [% [6 i; Nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 o5 X/ P6 g& \8 e, M2 ^; O0 t$ K
if (trade-record-one-j-l-len > 3)5 A) L2 `/ C8 d O" d! y4 Q
[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) s7 Z% w8 O1 v [ [
let i 3
* }/ Q/ y0 \. {3 } s$ Slet sum-time 0
1 @' B+ P0 w( U u& mwhile[i < trade-record-one-len]
1 c# H4 k5 T: ~[& W4 w5 p, z+ X( U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 x1 t4 g) F& \% R U
set i) P7 @) R& p, A( x2 [1 P
( i + 1)
! x2 H2 m* Q f]
# E6 U) k/ d5 G7 Ulet credibility-i-j-l 02 C9 p; }# _! @+ y9 \
;;i评价(j对jl的评价); ~, P$ L( G7 M/ |3 A: S
let j 38 B/ T" G" H. i4 Z
let k 4
) T$ n4 J% n) K, V. Lwhile[j < trade-record-one-len]- H: t1 p4 E+ B4 G c" C
[
3 h, }0 p* o1 U: ewhile [((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. \# Z1 C M2 S
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)5 p, O' I( |6 f5 s. p
set j h6 s5 ^( w" r# ^: c4 z
( j + 1)0 d1 s5 H6 z: x" R$ c
]
9 z) |& M9 `9 q/ r9 eset [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 ))
$ I, i. D: C) x X* Q( O, a: `* ]: {0 \- ?) X4 \: \
- W& h' N+ z& v$ Q0 @7 W2 k rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ F' A3 E2 o/ y+ K& l;;及时更新i对l的评价质量的评价 `$ v: i- \+ n4 z% T% u
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 V( d- Q" p5 N# ?5 Aset l (l + 1): l5 M4 k/ d6 B% {2 x
]
# W: h. @5 W; Gend
2 O1 G K) g4 Q, [
8 K a6 o' \( ]5 ?' K6 J3 K cto update-credibility-list
, i: [5 }. |/ `# W' Elet i 0
) \$ n' i1 f) q6 P5 N+ Awhile[i < people]
3 G! v+ ~) h4 \, d, c5 d* N, g[
; S% @; l8 G0 r2 }/ hlet j 0
' K) W7 h, }5 j" Y( u0 y" `let note 0
( W* \& U1 v5 p4 l5 d- Glet k 0$ t% E+ T4 k3 w! p! J" q3 d* Y* [
;;计作出过评价的邻居节点的数目8 U1 p0 c5 @- f9 \$ y
while[j < people]
$ y6 l8 ]- G: A' X/ s[
1 G4 ~" J, [- w' G8 Aif (item j( [credibility] of turtle (i + 1)) != -1)
/ K2 F4 g# R# l2 i: D;;判断是否给本turtle的评价质量做出过评价的节点
. y9 S1 g3 i7 P0 }8 ]$ c! K[set note (note + item j ([credibility]of turtle (i + 1)))
0 t0 ?0 F2 Y! ?3 b7 \;;*(exp (-(people - 2)))/(people - 2))]
$ k8 b+ }/ v- x6 [; ~. ^. _set k (k + 1)
& J; L. b. ]7 i' ~/ I. J- @# o]0 Y5 S; r! L: E. [2 j
set j (j + 1); `7 r" p1 X, C. v& h7 q
]
' ?0 H" i% w1 X: h- I; W, |set note (note *(exp (- (1 / k)))/ k)5 D1 a- q1 s/ g
set credibility-list (replace-item i credibility-list note)/ a( ?$ i- g+ h
set i (i + 1)
; y' U6 l5 L" r+ [' O]# N' e' [9 \0 V# R+ z t+ C0 Q+ a
end% H# J- |0 n' e" ?
8 L& o- B1 I& ~ U- ? Q2 Hto update-global-reputation-list
7 P2 F) w8 E$ S' ^$ \9 ~* z9 [let j 0
! S5 q' g4 X, w, _while[j < people]' E# T' G+ @, k: n. U
[
. K$ q8 y+ E8 A' k# L; k- e' Y# xlet new 0
4 B5 ?" ~# w2 P* S7 O5 H' l) i;;暂存新的一个全局声誉8 N' |% L7 n- M$ U- m& Y
let i 0
* b5 j& P# l [ d. Flet sum-money 04 E; j) r% C" c& r: D+ M
let credibility-money 0# L. r6 w' {# C! w/ f
while [i < people]
# z- t7 ^4 ]* p, W. [ k[
- Q9 ~$ ?7 A6 W4 _ {set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: R" O# q# w7 P9 e5 rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ ]8 Q: D$ H0 Qset i (i + 1)5 H. K- }9 f+ T* D7 a7 k: |
]
' [$ ~! x" n( a1 [/ s: qlet k 0- A0 m. b" D( d N8 ], o
let new1 04 v' i% ~8 r8 k) x1 g& O; _2 E, @% ]
while [k < people]
0 u' s$ F8 Z$ J m. }6 B8 `[% i( J t4 A+ z3 M7 M
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)
- c) }7 b, V% R( d6 X0 Kset k (k + 1)
( z2 u8 Q4 O5 Y& G' ?/ k& \* x]
: M' ^; i; X, oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ y8 `! |5 F6 }$ A5 N9 aset global-reputation-list (replace-item j global-reputation-list new)
7 R; @7 _! I8 ?2 G+ Lset j (j + 1)
2 i: {) w2 f7 F]
! X$ _5 M# z" K: @end
# b% K5 j' s7 ~; c3 [( ?& ?8 U9 t1 y# t7 U9 a7 S9 c3 {
/ v; x3 w( T4 U! j/ {8 F) c, q, G# J' f6 ^% H9 N# _- o
to get-color
% b( x, o, D# ~7 Q! i8 T) A( T) s
set color blue
3 @& M4 ]6 A! u2 r H* q1 X- lend
1 v$ W" G6 D0 d/ P: b- {8 B# c$ b" i# v4 X* }2 h& g
to poll-class3 ~; |0 h) ~9 A8 C
end, r8 K& m( L& w: {! @* r+ B8 G4 Q
7 Z0 O2 _2 v; Z7 j: V" Vto setup-plot1
1 Y3 E2 b }" c' o( s+ j0 J4 W& [& o. i2 r: n7 q% `
set-current-plot "Trends-of-Local-reputation"
7 S: G7 G& M" O# M+ N: r" W7 }4 |. \8 D. B/ T; ]$ d0 W
set-plot-x-range 0 xmax
3 d( m) {4 ^, p2 }
% G9 g' ?, x' e5 I2 yset-plot-y-range 0.0 ymax
: T/ r9 V5 {& gend
+ V2 |6 C. h: n5 B4 R
: k9 ?7 R! R2 f Bto setup-plot2$ j! E! b+ t! M0 q& H, T
, K/ i4 b8 x: m
set-current-plot "Trends-of-global-reputation"
" a6 j* v4 G2 S `0 M1 e3 e( i
, x+ d% G- K6 V0 H1 m0 D: Hset-plot-x-range 0 xmax* B, n, Z8 s1 ~% r* H1 ] n2 D
/ |" C) I: e5 z3 x; z; K8 h) l
set-plot-y-range 0.0 ymax! u( j! \3 a& M; |& _; ~. p
end, y1 P3 I& ~5 j0 H# ]
1 w2 [/ A4 d8 e3 ?# u+ cto setup-plot3
b1 ^4 {* j5 m
2 g% F9 [+ Y; M/ _ n. {set-current-plot "Trends-of-credibility"
( h5 n" j! g, C! \# q+ [# a- E2 b0 W9 F4 `" b! a( u+ O
set-plot-x-range 0 xmax6 s+ B5 Q9 J# Z( F
7 b9 O4 V! T/ l u& I% F, Gset-plot-y-range 0.0 ymax- K* N2 k3 J# L" r0 ^
end
. E- @/ [' ?0 k: _8 {
3 u; ~) E9 r8 U* c- gto do-plots( {# X w. U6 T1 `4 C
set-current-plot "Trends-of-Local-reputation"
* V9 Z, G: J0 W. E' eset-current-plot-pen "Honest service"* y5 o7 y9 g& `
end
/ X3 l$ P, k# `/ W$ _ n' A8 q2 |
: d' w- y/ q4 V6 b% v" [: m[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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