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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
) E4 Z0 J4 a- nglobals[
) }) I. N5 c8 g6 z0 Z/ Nxmax) i" d; X8 K+ Y' G6 d }
ymax5 s; I& k# E @, d# R- e
global-reputation-list, n+ c! Y, b8 C' g
! R/ |# N7 F( H$ L;;每一个turtle的全局声誉都存在此LIST中6 ]( [0 l( [- F) C8 r6 l/ k
credibility-list2 d! G+ U( D% _0 h0 M' p- x
;;每一个turtle的评价可信度
% C7 T( ^5 ^+ O! Uhonest-service
. {8 o3 P4 V2 e* v* @ j8 x% Junhonest-service- g# X2 ~( c3 Z$ W. y
oscillation
, L& h M' z+ E" yrand-dynamic
+ P1 v/ _- a0 i4 O% A]
# m" C5 D6 y4 ~0 C; v
9 T* j5 |% d1 J! kturtles-own[
. r0 `! e9 z( C, Z* {0 E* dtrade-record-all/ i3 I; w( g: D5 _. q( J, `. H
;;a list of lists,由trade-record-one组成7 m- ~4 M& H) B. |
trade-record-one, Y" m1 S" z" Y. V, P
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 X8 A' k/ T$ k& c( z8 p# W6 G8 X' ]/ d
) w; C, Z- Q0 O;;[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]]6 w. Q7 i" e, ?+ Y; {
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]0 A. \+ Y1 D; p' F4 w( _/ Y* R& Q
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 P6 j1 \5 V2 ?3 N% C
neighbor-total
' i# i2 j9 ^ W( A;;记录该turtle的邻居节点的数目6 f( e4 d$ U7 i
trade-time0 p$ Q3 W4 M; ?- \* R
;;当前发生交易的turtle的交易时间! s( q2 ~# _, P2 @7 z
appraise-give# c' b9 n8 T% |& F) S. y4 M
;;当前发生交易时给出的评价
: k7 l- [& k3 J5 vappraise-receive" K) \% D3 t1 o
;;当前发生交易时收到的评价
" p+ P- {8 ?1 N: J( n$ ?7 @( vappraise-time1 g: H: f3 g# {2 m
;;当前发生交易时的评价时间) x8 K. e, e8 v( d+ I
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ j) p$ ~. |% x* @' atrade-times-total
2 C4 Z, f1 r' G$ x( j;;与当前turtle的交易总次数
9 a2 ~" c3 e7 P8 [trade-money-total, ?5 O+ s0 o3 e* E7 G& @% K
;;与当前turtle的交易总金额
9 v: y" @9 |0 D, b ]. @' Blocal-reputation
# z) U, x6 w! S. Jglobal-reputation' E" P& b* R3 ~) Z4 R# ^) H3 D% X7 `
credibility
9 e ~6 v& B! s: G( F9 ], j;;评价可信度,每次交易后都需要更新
]! D4 P& W# Mcredibility-all5 A2 \ y" W8 t4 s7 [+ a
;;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
: \/ p) ^& f1 I K+ z# _2 B8 L9 v: e5 x2 j$ a5 z
;;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: s" l; y$ U, T! _: [. n8 n( @
credibility-one( `( O0 H. r& R( n( O5 l; u
;;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9 {9 H( b1 K% [7 q" W
global-proportion7 |$ \8 W$ O6 r- M
customer: X( L5 A9 ~4 D5 {& y F- ]. w/ N
customer-no3 ~9 ~& {1 [' \
trust-ok
* }8 V) L3 J8 h* P. @2 Qtrade-record-one-len;;trade-record-one的长度
5 c3 h- Q% ^, D, Y: {! G; H1 q]
( P, H! q$ z* a# ?% ]- ~ i" ^0 ?5 H6 b/ r! a7 [) w! i5 \- v) `
;;setup procedure
2 U- z; v* q! U5 w" i! l8 w# n4 Q# R- B* u% w7 u! F. Y$ J! J* F
to setup3 H$ X( z' V! o7 J/ [& A! q
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ca
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initialize-settings: Z9 l5 |7 ?2 P( S2 V* q
. M$ i% ]) a' J5 u5 Y7 x
crt people [setup-turtles]! J) G: |, R. c# |5 }/ g
7 ^! g$ b* C: q: ]# V
reset-timer
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poll-class
0 i# v/ d. i9 R
9 \$ ]4 {6 w: [0 Q/ z+ g5 ~setup-plots
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do-plots. T+ M1 I( h2 ?: ~, @% ?
end
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: }+ l/ | E4 j2 w: d! xto initialize-settings
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set global-reputation-list []9 n/ V$ U; E8 U
) c. a" b) m N2 J/ a! Y+ Kset credibility-list n-values people [0.5]
A6 b6 u: s/ c: R: \5 ]& g/ K) J: u9 d
set honest-service 0
# `9 F1 G/ n9 p @7 C) ^8 R; P
; M6 L) }( \: i; @' i( _set unhonest-service 08 x; \9 w* [2 @. q4 d& R
" }7 k1 l) V' H( {3 a1 u
set oscillation 0* C/ {: U& Q5 ]
, J8 f7 ]7 o* O8 X/ |+ P) W" xset rand-dynamic 0
- c6 d- G/ {* i5 U( g' o( Dend; F+ U+ J8 u+ t' F
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to setup-turtles
5 W1 d! v, Z# ~0 ]set shape "person"& I* Q* I. w M3 ~' u" q1 j6 a
setxy random-xcor random-ycor, r/ a/ ~. j, Y3 Y9 V5 ]0 a, c( ^+ \
set trade-record-one []9 `6 ^; S: ]9 t D M4 d- T* l
( n/ I, L A/ v
set trade-record-all n-values people [(list (? + 1) 0 0)]
% ], W: J& m( L" u/ ?$ J" r8 l8 `. h4 K$ P
set trade-record-current []& q+ i. h8 l3 y( Y5 a, {
set credibility-receive []
5 l6 e' J! S# M* eset local-reputation 0.5
9 Z$ _: S2 z3 J" y5 Gset neighbor-total 04 v% W. X! q. T% V" M
set trade-times-total 0
! e6 X# a* J! F7 J' Rset trade-money-total 05 b9 i: o6 U! c
set customer nobody
0 j& E9 L2 G. w7 ?, hset credibility-all n-values people [creat-credibility]2 C! H# J0 G. \
set credibility n-values people [-1]
( G8 a# O9 t/ Z$ A4 u4 Oget-color
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, W5 J" N8 ~0 W2 f, ^: Wend
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to-report creat-credibility7 n2 L( C9 E( ]& T7 ~; @
report n-values people [0.5]
- V! d A) A W+ J4 Qend8 K8 B0 W5 S* g p* x5 n& \: c4 I
0 O% N! z, _" W6 u+ {. b
to setup-plots
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set xmax 30. ]6 `2 L$ `9 \+ M5 N
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set ymax 1.0; g7 T0 g% @+ h+ N. S0 L
8 F( Y4 p" G. E$ ?$ X/ x. p% Nclear-all-plots6 {" I- ^9 r7 l+ p6 L1 f$ |/ g! o
7 h! h. G6 z3 u" \$ \9 J4 \/ isetup-plot1% s; e# k( {7 d' d) \: J
. ~# B. V0 h* V) Dsetup-plot2
0 `7 I5 Z- B: ] l2 x# h# ^# {7 I
setup-plot3( ~+ w1 a4 `# P0 L1 Y5 u
end
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' i: _; |5 R9 h6 n0 x- @;;run time procedures
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to go
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7 z$ p0 l9 v2 l# m: p+ [2 \ask turtles [do-business]4 _" \( G4 Q2 A( ?- r
end
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4 i) @$ P9 f; {- qto do-business 3 X' Q8 H5 c: [; v7 @. _
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- L7 |5 f" A' J* o8 [% Frt random 360: o- B; `% `& [7 r, A
; ^8 z: f" b) \2 o u& ?- Ufd 1
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: |$ q. L2 B9 c+ Q0 ^$ f2 Eifelse(other turtles-here != nobody)[; ^( Y8 H0 f* d# Q$ n2 g5 F- Y' h
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set customer one-of other turtles-here6 L/ l1 N' P( l% t, P
+ }( z+ U+ z8 ?+ f& T3 c( ]& Y
;; set [customer] of customer myself- ? u: I+ u3 H) |1 J, p2 ]
! n O0 b$ U# o, x; _set [trade-record-one] of self item (([who] of customer) - 1)/ d( ~! F1 Q" v4 V7 b% T$ J
[trade-record-all]of self" }+ W1 O: [$ y. i7 X4 `5 ]( U$ @4 ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self l: ?- s- ]% x. B& U. Q' Y0 r% @: X
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set [trade-record-one] of customer item (([who] of self) - 1)
4 N' U. Q! {3 Y: a: Z[trade-record-all]of customer
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3 D# K- ]& f) E7 Y$ mset [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))
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) n- I( U& L5 \/ E9 Oask self [do-trust]
& x( H, R* Y; |2 _7 j" a;;先求i对j的信任度
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if ([trust-ok] of self)
7 k% o1 [; g" r* w1 f6 j;;根据i对j的信任度来决定是否与j进行交易[) \$ c, ]0 ?* a! p7 I
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& C" |/ W; ?4 T3 p' k
8 O+ u! h% \, B/ [# I1 b" O[) N9 ]& J( k; l- O8 o4 z) ?
4 |, C6 _! p4 I. \5 Z! o- ddo-trade
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& _$ U: L1 Y1 l6 }3 jupdate-credibility-ijl
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3 J4 X, Q1 p, D# I0 ?update-credibility-list
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update-global-reputation-list8 E, c% W1 ^ n" a d% O5 A/ o& G
2 L6 b/ A& c5 J1 F( K( y2 @poll-class
" W) L7 K$ D! V# {* R- `* d: y( o2 `2 W: N8 E+ K! X' N9 \& o; i; f: E
get-color- i5 e3 R( i$ J6 P9 x+ c* s
/ G( E0 X1 b) R8 ~]]. Q2 Y1 Z$ e" f" g' W" Y, ]& {9 d
# y" b* H7 |6 b
;;如果所得的信任度满足条件,则进行交易# @% d2 n1 ]- O6 @' A
' m3 c- r4 x( y[- {7 T. Z6 c5 z! t
" N; O2 q W) _+ c5 k3 f5 T g
rt random 360
7 n! Z, |" |2 K7 a
; ?1 ^+ H" ]8 _fd 1
; O: U, x% T' t5 ^! X& T
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end
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to do-trust $ \+ ]7 t1 j5 \7 E \5 k8 ^
set trust-ok False5 c, G" s3 b, U M6 v8 d- {/ O0 w
: K6 W4 D* r0 p1 ?( ~! x; h
* j; k3 K/ n" u" ylet max-trade-times 0* Q- \$ Y5 w, B |( M4 \
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 J: P2 s, D& |4 Z: N2 [$ [let max-trade-money 0
4 D$ H$ P: |6 q; h) a: ?. D1 Y sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 U, n/ Q, N" y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* ~: ^) }" ]5 _2 e
2 a( N( f$ c: R* k2 y5 X$ ^& s$ i: }0 w0 n: k0 V
get-global-proportion9 z: C- i* Q5 \: F1 i5 j
let trust-value6 V% Z* t% _! e6 l) l+ I# T6 D! ^3 S' n
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)" K( s7 C' b; `8 |6 H
if(trust-value > trade-trust-value)
7 \- W& v& m5 f9 s' S[set trust-ok true]
: a8 V, q8 r/ o2 i! H. Uend. G" g9 ?7 S2 n, T$ E
) g+ U9 E( C; n6 h
to get-global-proportion l n) j3 H7 t# t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) Q6 b! {/ t% U. L3 E7 u4 q1 O& v' Y
[set global-proportion 0]
; I$ n/ B* i& {# q8 `/ [3 Q Y[let i 0
5 C" C8 Q% n# Y$ p* M# w# m7 W. Slet sum-money 07 L7 R6 C" L" f, S% n6 E
while[ i < people]
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if( length (item i, D, h" }8 B0 }$ w' [
[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% I V) e5 m: Z]9 G$ q1 ^/ ?6 e, {/ T n) ]
]
$ j* B6 R9 w5 G' \let j 0! A M1 x* Z9 f
let note 0
' b. n; f2 o7 h) ?7 I0 L* r1 Swhile[ j < people]
$ @8 a9 g @9 I; ?! M& d- E/ ?: J" b[- M+ y7 S- r" b+ P% k" l
if( length (item i
3 f4 U. H: A5 J! y$ N B[trade-record-all] of customer) > 3 )
) M( C9 u' {1 ^. N+ l9 K4 `2 {/ I[& O' |6 O7 z0 `8 R% W+ L, q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* A# W3 E: A# b: D* U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
t/ l& z' F: T5 w, }9 F[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 ~: O) ~! x0 J) X K7 W6 @, I
]
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' o: g3 M& x+ `5 |! J0 {3 R; t; y8 eset global-proportion note) o5 a+ E1 N/ Z9 w- z3 B$ ^
]
, q3 G; Y3 O8 `, [: I- rend
5 z. @& x& d2 K; x$ e5 p
+ s; a# r* [/ Cto do-trade
# y0 C( n: U( x& a2 R' g;;这个过程实际上是给双方作出评价的过程5 y% V+ J6 V% e/ y: m- j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' W& L+ k6 ]' }% N, y! v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
j) Z) ]8 I- y/ t3 T& _8 i! S" Vset trade-record-current lput(timer) trade-record-current
, z0 ^ |; F# Z6 [6 N3 S1 j;;评价时间1 f5 B' m& w4 V3 k
ask myself [0 `) R" x! p0 Q, A
update-local-reputation
0 a2 T% x7 t/ O* i* ~4 y Eset trade-record-current lput([local-reputation] of myself) trade-record-current
& M6 H( g3 ]* N: P]
2 p4 e2 M# w2 Iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# r! D+ S1 q6 i9 G" {9 W7 |
;;将此次交易的记录加入到trade-record-one中! t; ?0 _- B8 i) R d# n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& m* f2 q1 y+ Q& K# W; r- W3 ?let note (item 2 trade-record-current )
2 q) M2 H9 t, ^+ Y2 uset trade-record-current
" V8 S( G- |7 `( E# D(replace-item 2 trade-record-current (item 3 trade-record-current))
1 U" B: \: G% l: s" T; }. U) j! p4 eset trade-record-current
& F; ^- A9 x# X7 y+ c. p+ ^/ [(replace-item 3 trade-record-current note)6 Z D- S5 L! w4 B8 j' _
2 W* u/ Z5 w2 Q6 |; p
6 P( U- b6 o7 `0 Z
ask customer [9 I: g% N' g1 _
update-local-reputation5 b# Y7 s& O/ H9 z6 ]* I
set trade-record-current
! h' F! B9 \6 W& [4 Q! k5 {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 L6 g6 x, {: \" x
]
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# O" J* v" K5 ?6 q2 U6 `9 O, w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# S. T6 [: i6 h% I3 x/ Y
7 C; j7 S7 p* |5 W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" X; e8 X. a M1 u. w& Z* a; h' @;;将此次交易的记录加入到customer的trade-record-all中) G. ~0 R. T5 H4 k
end
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. i# r1 q# u! Y. C/ p: k0 b+ kto update-local-reputation3 s2 w2 N! I4 H0 i" ~! y6 Q) F0 [
set [trade-record-one-len] of myself length [trade-record-one] of myself0 z0 M: r }5 k, A! a! s" L
/ ?5 r! F1 U" \8 t% F7 r% u
7 t3 S4 F. `9 r5 W2 L. j4 [! V* P;;if [trade-record-one-len] of myself > 3
& J& S! Z6 I3 i8 `: [# o3 e5 Vupdate-neighbor-total
; a( O* f# M! T! I;;更新邻居节点的数目,在此进行
( |( P* C7 B3 s# g% _+ T$ Elet i 37 j3 [: K' q. I( P M" ?
let sum-time 0
' c1 J! v' a! c" i. Pwhile[i < [trade-record-one-len] of myself]
; w: W0 f6 P0 j2 b. d" }2 h[
/ _6 {4 a' J; Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: L. v2 [* a/ `set i- m) j# s; ]* d7 x
( i + 1)
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8 g2 A& J) T! `& `2 l- t2 @7 N; xlet j 3
2 U; l) f( V5 h$ Q" | ?* c" h% mlet sum-money 0
! ^7 s) A& ~0 |$ f$ K$ Ewhile[j < [trade-record-one-len] of myself]. c7 r) @0 p& I5 S1 D
[
4 s- ?3 O( r3 p1 V/ K6 [5 [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)
/ Y2 ~( X% I* Q& N" ]2 E3 ] l$ A0 g. Uset j
4 Y8 ?. [3 x4 V6 p* ^7 b( j + 1): x7 ]" o8 b' I* K
]3 a8 N8 @$ C0 i& ? B
let k 3% T) P, o1 g' F& ~& h6 i
let power 0% X: A2 G. d5 M4 u; N5 m
let local 0
c8 m3 R8 k% Y% z' v: ewhile [k <[trade-record-one-len] of myself]( r) @$ X/ v- g# G! T" {- |- q
[$ Z1 H+ |1 W2 {. w8 V. d
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) : Q, n( d9 `0 I8 h: ~8 y
set k (k + 1)
1 y4 q+ E$ N/ h( I4 Z]& [' X0 n6 s5 g
set [local-reputation] of myself (local)
( L5 P( T# t0 e4 Q8 E% P/ {- Pend
: r7 o; [8 \ |, b, P x- [
/ Z8 a* W2 k( N7 L: ?# wto update-neighbor-total
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8 H( F' y8 j# ]! n* _9 I ]1 `if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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. _( x7 m; q9 J* C, S0 ?* C6 s7 ?% c6 y, o
end5 a" |- I! w5 {# @
/ i# G5 m% y" p# h' H4 b/ @to update-credibility-ijl ) z! |- E1 @4 r( r, A5 M
9 ]1 s) S' q( p( p! m;;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。* F' j2 P2 _# l3 M
let l 0, O( }3 `4 [7 {. I' G- A
while[ l < people ]$ C/ H, ]& n 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1 i$ J: q1 C2 v: s5 h9 L, F/ r" h
[
8 @' l# Z" ^! D3 A/ blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 D1 x. U8 k$ H: G4 ?) [/ N& k. M
if (trade-record-one-j-l-len > 3)
' ^" I& a, U6 ^$ ]* G; 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$ b0 G7 ?# n% ^9 _& o
let i 3
* l# K& g5 \& Zlet sum-time 0
; d4 ~, a, R* f/ u' Kwhile[i < trade-record-one-len]
7 N5 X- U' T) A/ R7 k& d/ N1 a[
" d+ ?$ w4 ? D! Y; mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ C# D" d& x* B/ i/ f. j) A" j
set i
5 M. o- W) }* U3 m1 d t( i + 1)
2 R* N [: b T" y/ o$ @4 s% ]]
% B7 s; l0 Y2 U8 H# X* ^let credibility-i-j-l 0
0 T" M( t3 I( A: [3 K;;i评价(j对jl的评价)
* b' [3 g0 u+ L, s: {$ H7 \, }let j 3: u, @, g/ N, u7 o- i1 n* K
let k 4
: {$ R0 L; D7 X( uwhile[j < trade-record-one-len]
3 L+ W2 r) ^8 c7 L[8 D, G& a0 F5 X* j
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- |' h. {8 N( u6 k3 y
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)0 c7 C1 F, u, f0 ]3 F8 M" S
set j
+ O, O( _) _$ j! x" H( j + 1)
, i+ N9 E3 L2 W2 ]$ C]
3 ^3 B4 K+ U0 m0 j+ V( M+ Oset [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 ))
" J/ j" R. s0 T% `; x/ w
/ i* O/ ~7 d! @/ x* `% z* x
u8 P' q. `8 F. m2 y! B; ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& ~% x) l1 i+ N# r; m& d9 A" X
;;及时更新i对l的评价质量的评价7 p G6 Q( Q; o- q$ b& k
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
Q" ~5 [+ F" U+ \* |. Qset l (l + 1)
: {4 J3 ^# F$ G" i4 y' l]
2 e$ [, c- U& l! K( _( i \/ X$ Bend: h3 K L) l& e) ^ u
0 W: ~ D* L: P7 Z
to update-credibility-list- u# k4 [7 z/ K1 t
let i 0; h! X [- Z: W5 _" Z
while[i < people]+ R, w! c/ S$ O$ o- P
[( Z$ P) t. M3 S* f1 b- }
let j 0
& Q+ X& X8 J- V/ X ?/ R' c# Glet note 0 B' g$ ]7 p4 w3 a
let k 0
* h" b- e. L; n% u& T;;计作出过评价的邻居节点的数目& S# A, a1 `- B/ L
while[j < people]
+ D7 v+ A( Y; c& z6 u, S0 i[
; j9 g9 }% i: I9 T" t) \7 P0 Iif (item j( [credibility] of turtle (i + 1)) != -1)8 u6 W; l+ {; C4 b1 W, k [" m' u
;;判断是否给本turtle的评价质量做出过评价的节点0 {! o o; N4 I7 D% q" b, C
[set note (note + item j ([credibility]of turtle (i + 1)))
+ O, \) n. P+ w1 A: J. w;;*(exp (-(people - 2)))/(people - 2))]
0 _3 B7 l% s yset k (k + 1); d! e$ o$ P: ]: x4 Z( @) ~
] H6 a( h! J% R; I+ O
set j (j + 1)
: g6 j2 |4 u& X1 N6 x+ V: C, y" {]
`2 h! j B5 O8 iset note (note *(exp (- (1 / k)))/ k)
0 P& ?1 D6 M) H( k# Oset credibility-list (replace-item i credibility-list note)
1 Q5 f( ]5 }) D" F, I9 Nset i (i + 1)+ g. A4 T3 ?! i; v7 D2 G6 o
]; v9 f% a# S, a+ Q4 @
end
+ w* W r8 B# @0 S2 V
# j2 `/ i" |6 `to update-global-reputation-list& a! R, v* O8 H' ^
let j 0
* m. x* J3 z. p$ o6 K- x; jwhile[j < people]$ i7 N2 o) l) G3 J2 t& n z, k
[
- N5 `& S+ K. \, w6 glet new 0
2 b! [' E3 [# m8 Z4 S+ j;;暂存新的一个全局声誉0 P; _ Q @! O: ?0 I
let i 0
7 w! V# I, j, [1 a- Qlet sum-money 0
! v% [; n3 n8 k' t8 O5 x n& q+ blet credibility-money 0
& t" C3 G, U! w! R3 i6 i% |' }6 _while [i < people]
# o5 q4 C+ I! x& {- G; L+ X0 w[9 q5 |( |2 e% F. ^" J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 V' k* q0 w3 i2 p6 b7 S1 W7 V! W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, q; n3 J6 l9 D! Z! a1 K+ B& |set i (i + 1)" L) l: i+ S2 t- B4 Q* o
]8 @- r+ S. n6 y2 v+ Y
let k 0' ~+ H3 J: s' z) F" T% I Y% a0 c
let new1 09 M4 s7 p& E0 A0 q
while [k < people]
2 j# e! m8 x ]# v. d/ g5 L! ^ r[$ S) B0 q4 U/ e+ I2 H
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)# U2 j2 f8 U) [2 n5 a7 m
set k (k + 1)
! Y# M8 Z v7 t4 A] {, {9 s+ k0 G$ }% `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 n* M! Z0 `1 w! ]5 B# jset global-reputation-list (replace-item j global-reputation-list new)! t1 L7 P" W& C; g8 `$ X
set j (j + 1)
8 }5 [# m- J- e C$ j; h% j2 `]: R' }2 L3 `6 Q
end5 X" P3 T# K6 ]4 g
$ s5 T S3 h# L: R( x+ n7 p& ~: c
* B& D7 y& y. c# a+ s' H
9 D2 N v$ i: ^to get-color
* c7 n9 `& m; x7 R' C- G
" j3 P$ E2 ^/ [6 ^. z3 yset color blue
- N& ? T) f& Send
5 n: s5 u9 X5 X+ p
' E0 j. {/ ?, t; X* tto poll-class
f- p/ g+ m6 |% G6 o. `end' `8 x& A8 W5 ^
7 `* @, {1 }# P
to setup-plot1
6 x' T; L- m& k6 C' y4 w$ g
3 c" r2 w( f; Kset-current-plot "Trends-of-Local-reputation", \& J% Z8 i$ |& i' F. A: Y- v
$ ~. y* G4 [3 h! A9 U* }- D
set-plot-x-range 0 xmax) a' K% B& d. N! V0 H$ ?
' E; G/ ?2 z! D6 N3 r& J- @
set-plot-y-range 0.0 ymax D+ u" |. F7 Q) t
end$ P5 X# W! a1 S/ }
2 q8 @( \: L- o0 e) xto setup-plot2
6 @6 J& ], X: w# K+ ~3 D, A0 M6 l( }# z7 ]; |! h3 G5 b" S
set-current-plot "Trends-of-global-reputation" N! N s8 E) ]+ f6 H9 Z
: D" e6 M4 ~: k4 C# mset-plot-x-range 0 xmax7 A. {) g- H* G6 \- ^; h+ ~
% k2 q5 M8 q+ r! q) w! vset-plot-y-range 0.0 ymax
, _! J2 |6 m3 _% m wend& d$ G/ M! A; j6 a- y0 t8 j$ ]
. V+ Q& }8 c8 I9 u/ p/ B
to setup-plot34 p8 G1 y3 q) A7 O0 D6 V6 `7 _7 V% T
3 \* d- k+ N5 H1 f6 x
set-current-plot "Trends-of-credibility"7 w" [ e1 D. i8 z+ M
S. Z4 I3 K! E3 a9 A/ q. X
set-plot-x-range 0 xmax
9 S9 d/ v4 t/ {! J7 z4 ?* @. y! r! d) t: U
set-plot-y-range 0.0 ymax' X: x- s2 y: x
end7 T' b" q8 B- y8 o) K/ U
4 y. Z) ~/ E) [# d
to do-plots: ~! N* u8 [6 v
set-current-plot "Trends-of-Local-reputation"
9 f2 E5 z* K" ~ I" R gset-current-plot-pen "Honest service"/ P) v* l: B' C' u1 v, ~3 G
end
: S# j$ U% B& ?
/ j- ~3 C+ `# A C, Q: k[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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