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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
* M3 u& N* B0 ~! {globals[
# @% A, J$ v$ G8 M% e( txmax. J) s, B9 V- t2 n, ]* w) m$ `: ^
ymax- ?7 {: T8 o3 X: i5 M6 o. b( P8 b
global-reputation-list- j* D3 {4 [3 e k
3 X9 Y1 h1 y6 e g. H1 g. I
;;每一个turtle的全局声誉都存在此LIST中
/ K6 a+ t! @6 A/ M' y2 D6 Qcredibility-list
5 ]8 c9 h- O; H! e; \( L+ x9 Q;;每一个turtle的评价可信度
. N+ b3 w9 S! Q! k7 dhonest-service6 E: D: j' r# O, g
unhonest-service
- n- |/ i6 b# H6 O3 G/ I+ i+ Loscillation
; G4 S5 D T* P4 V4 N0 w! krand-dynamic( g% S+ j0 j4 E5 c
]
+ y3 G2 ~( s0 W5 k1 Y0 W) W
5 q% o( b" k) }( l' x0 Y! S) q' Kturtles-own[1 ]6 j7 V) l/ C# [
trade-record-all! e/ c o" C' l+ {
;;a list of lists,由trade-record-one组成" G9 x3 s6 A' R. `
trade-record-one
7 L$ Y- |7 M) ]4 [- u;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: r' A, b1 S: h8 i
+ n# j, y) Y) @( z;;[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]]1 Q& |. K. M% y3 ]
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]
1 W! _* q- D$ `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# V8 b/ I2 J' k; L1 F! e
neighbor-total7 x, A1 Y7 G& [9 Q! Q; l' |
;;记录该turtle的邻居节点的数目8 B1 t& N: O6 [& S; D
trade-time
" h$ N# R, y) u8 ?6 d; m: H. j/ };;当前发生交易的turtle的交易时间8 |* Q4 e K3 t0 v. O. T
appraise-give! f9 n3 R; m* m; ~( u' K
;;当前发生交易时给出的评价
" x; k9 O/ k( _7 F9 f/ xappraise-receive
2 ] j' t$ V& U9 C5 i;;当前发生交易时收到的评价' n& z0 _( t1 b0 u: U- o
appraise-time0 v* X" V* g9 \8 Q* `1 {
;;当前发生交易时的评价时间, O# p1 g9 u0 m% h& ~/ r4 L
local-reputation-now;;此次交易后相对于对方turtle的局部声誉. C9 W) V: W5 g+ W
trade-times-total
( m: d- B4 ^9 Y9 k x;;与当前turtle的交易总次数/ t% f; v5 {* s7 ^& ^5 K0 F* T
trade-money-total. G* Z8 K9 g; I9 X6 S/ e& z4 \
;;与当前turtle的交易总金额7 b! X2 m# O1 ]2 \
local-reputation
I+ d! N: H' r3 I; ^4 _global-reputation
# y, w% M* {( w5 l" N+ tcredibility" c1 ]! Y) R7 j. q, Z- X1 I) a5 X
;;评价可信度,每次交易后都需要更新
' g$ p( R# [; o8 I" u) h/ L8 J* Mcredibility-all% N: U6 h# z: |0 _
;;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, ^9 w/ N8 I/ G7 u/ D4 E
# }' O q9 | [$ \7 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0.53 u+ e5 Z* o9 S" Q) D
credibility-one
0 k, M) m3 g% ~/ J4 d;;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 V" _9 M; \! `, M2 c8 C$ P0 U F
global-proportion- y" D1 a0 }0 @6 l B" h4 r6 j
customer
3 |- R+ `" ]- P1 [8 d" Xcustomer-no5 r" }+ |+ h5 G/ B' G0 n2 W8 U
trust-ok' r9 U8 A: t W- D
trade-record-one-len;;trade-record-one的长度
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: B J5 ^- G( ]3 B' W4 ^. a1 \; D \5 |3 O
;;setup procedure
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. ?; Z1 u2 f7 f3 nto setup6 m. l4 b' x$ f* N
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ca
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initialize-settings
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( M* @3 l4 F/ ] ~* @. ^# jcrt people [setup-turtles]7 z' `- v% S/ y' |/ p+ I, x
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reset-timer$ Y# J _# k0 a2 `& a
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poll-class7 ^' v9 `8 P2 _7 I) a
# d, A3 p" V! R* I# S: tsetup-plots
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do-plots
" L. f5 J/ S- [# L4 A7 Send9 i: c: L8 a2 n9 |
; E& [. y( I2 t; {( I. Fto initialize-settings! A9 {, k7 |$ c8 o% b& D
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set global-reputation-list []
/ a, e [1 I& \9 z. J- Z5 Y
/ t8 a: I9 d0 @3 S: cset credibility-list n-values people [0.5]2 l4 C4 l% h+ I5 c N
2 n2 ^$ P1 e# |: x. M8 |set honest-service 0
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0 I% ?; y e7 f$ S( U- j$ y: J1 _set unhonest-service 0
" j1 _9 E/ A! }8 V5 b& U& w4 U" e
/ `. d4 \ \) J4 Zset oscillation 0
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: N R. J" ~9 ^" p5 Kset rand-dynamic 0; I V; F: M: i; Y" K9 n
end. Q7 B, ~( R7 G+ Z9 e
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to setup-turtles
3 u6 r1 n# |, U2 h7 Aset shape "person"
: t0 k0 v9 w7 E/ T( k6 W' Bsetxy random-xcor random-ycor! f# I( E" C: \. m; ~/ `* Z3 ~
set trade-record-one []
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t- w s- s4 d2 D0 t- sset trade-record-all n-values people [(list (? + 1) 0 0)] # ^+ A/ ]6 _+ `0 p& n
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set trade-record-current []* d6 c9 A. Z" U; D
set credibility-receive []6 c+ ?" M6 z: P" X% {+ P( n2 r. P
set local-reputation 0.5
' ]& Z1 g9 o2 {set neighbor-total 0
# c5 n9 R7 N: A4 c6 Hset trade-times-total 0
" B& n W9 G1 Zset trade-money-total 0
; v% c0 x B8 E8 c. e* ~- r0 B V( @; i' qset customer nobody
' b2 C$ B M) D* Pset credibility-all n-values people [creat-credibility]% k+ r0 e1 |0 ?7 W. W) h0 u
set credibility n-values people [-1]! I. a7 m2 z) a
get-color
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. i% c9 M; {) Gend2 M* P% M9 o' v7 @4 v
+ K: w+ r% m6 g9 ^9 r% \7 ^to-report creat-credibility, B- R- A3 P# r P- ]
report n-values people [0.5], T3 d D& ~( l) Q
end* O3 T4 m& c* |. y* r0 S" i i
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to setup-plots" X. i9 d* q- @& M. s
) v- T# d1 M% k5 o" d& Xset xmax 30
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0 Q/ q; {6 s8 l7 q# h6 a+ yset ymax 1.0
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clear-all-plots3 N0 E6 L0 F ?- x+ \
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setup-plot1
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, y. O( F1 F: \, csetup-plot2! ~7 I& |5 O2 O. m
7 \" L2 s# C9 Wsetup-plot34 m) I, ^3 p$ v
end
( j1 c4 }* s0 T7 ` J; `7 T% R# K( x _3 H7 i. x' o N! E
;;run time procedures
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5 } `0 X8 _* @, O5 `+ Z Cto go/ Y; J( X" j; ^4 X. ~! R
# w) E4 Z2 y7 V& ?7 [6 @ask turtles [do-business]
( ~8 q5 b' G( Zend
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4 j% U- C1 D" j, B7 T6 n! Oto do-business
! c' S: t2 l. i1 e- B) w) \6 U2 ]: n: R/ K& Z! A4 P# p: B
; R3 \1 Z( S1 x$ d; ^
rt random 360
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& |& Z* `1 V& v+ Y! Vfd 1
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ifelse(other turtles-here != nobody)[# g( o; e y, g$ u2 Y& W, m
2 y2 I4 w6 R1 c9 a4 ?. Wset customer one-of other turtles-here
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;; set [customer] of customer myself
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4 j3 D5 ]+ q8 \; r( ~1 |4 D3 mset [trade-record-one] of self item (([who] of customer) - 1). y$ V- A3 P2 o7 V; m
[trade-record-all]of self
7 M: N- N K7 o! Z+ Y& B' ~9 x;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ S" R# _/ \; i) ~' Y- z1 c$ N' r
2 W: @! x: F* p- \6 M) m, lset [trade-record-one] of customer item (([who] of self) - 1)
7 r) u- Y, N0 l5 ?[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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: g$ ~. z0 T6 F& ~set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]& m1 d1 \0 O& z* x/ P2 }
;;先求i对j的信任度/ l# W: P7 j1 d/ ^ g, z
6 x- j: m; B f- ]2 ?
if ([trust-ok] of self)
1 r& \- ~9 `# f+ N' x9 q7 O;;根据i对j的信任度来决定是否与j进行交易[
, ^( y0 Q4 v- b: R9 j/ z& ?- Zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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: ^; f4 S4 a5 B; D9 ydo-trade$ X. N. ]) W9 ]; Q; T
% r, r' H: f# S: l5 h1 z+ |; K
update-credibility-ijl
8 S9 F5 y: S! }
% z+ M: S; j. h# ]9 Nupdate-credibility-list
7 ]0 L* {( ]' ] v; o% E" L
1 u5 Z5 R9 l/ c/ `+ ^# _3 O& _0 A6 b$ d6 q( d3 S8 t0 u8 \1 y
update-global-reputation-list4 k* j+ s$ d# P
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poll-class) A8 d' O/ W# }, c1 b8 L
% H" q* l# c; C9 j. i8 L
get-color
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9 K0 ^0 A. P$ Y) |" z]]& H: o4 w) s# r0 T2 F
" h; V. s7 s q% j6 M$ K& d;;如果所得的信任度满足条件,则进行交易# C7 ]8 o' b# w1 G S3 T
7 _: v% |' Y9 M! S
[
! ]6 u- R) M7 T% y6 Q I9 L. a- j4 V0 W
# s8 z# l* K4 d0 O6 Srt random 360, x# ?9 Z! b8 K5 n( N' o3 I0 q. S
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fd 1# E( }7 w7 n! s
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]6 ~2 |4 L3 _% q/ l
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end% X$ q" ]$ d/ Y# l) y( r, U: _7 o0 p' J
# [2 P v" f1 m/ Rto do-trust ) y5 b* M+ i5 C% n7 w( Y
set trust-ok False
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F1 t( {8 R4 g- }1 }* S# ilet max-trade-times 04 d) ~7 ^6 H3 C3 Q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 W# d: M$ c: a( i- w7 p
let max-trade-money 0/ K+ r# e& ~, f' @/ v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: S3 w8 r1 U* N1 W6 z9 Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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8 M7 M; q+ U$ F
get-global-proportion
1 P _6 ?; U0 e; C9 L; b5 Ylet trust-value
, y% c2 v0 Z( Z8 H* ]: C; vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)2 o J Q$ O I, O# M2 P
if(trust-value > trade-trust-value)9 X6 \1 j) X! n" z* \; b6 g j% v
[set trust-ok true]
3 }/ }# z4 q4 Lend
: p/ u1 B( k9 x1 {( s2 i
! f1 j$ F; T- i$ gto get-global-proportion- h; Z. W- x6 O; T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). r7 n8 ?. R+ |4 h7 v }
[set global-proportion 0]$ v/ n5 k! Z/ D. }
[let i 0
- ? [" \4 p% b3 B; I9 ], A$ v2 ylet sum-money 0
2 L: d. a6 e; B2 Xwhile[ i < people]& t/ _4 v6 N2 Y* W( \& T: t+ b
[
" B& q. ^( R, V) d A+ D5 A4 {2 d4 tif( length (item i9 S6 |% s7 E3 N: h s$ l( B
[trade-record-all] of customer) > 3 )9 K- k/ k* e6 ~% D+ k
[( O2 j" o( R( \& ]% H9 X2 J# A, L
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ q( s5 n* t, A) u A]9 R' ^" \9 F+ T- D7 a
]# X! q0 i6 }0 |7 U; \
let j 0
# |* i1 y9 x+ V4 j+ a6 glet note 02 @! g" Z. z5 Z5 L8 l6 a! l% h
while[ j < people]6 r" `. ^% R/ i$ J
[7 [$ D% ?( e. T" B7 t, O3 U
if( length (item i. v: d6 p% S f/ h" l
[trade-record-all] of customer) > 3 )4 z# _$ L9 A, V1 B
[# ~3 E% F4 O3 a6 {1 Y, V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( V) g4 T8 t$ [[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' V4 r! K% C5 h- ~/ \, a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 p: U' C7 h. M* t]/ P+ ^/ @& P% }( ]
]
& {- C9 d. K# v @1 n( e+ Rset global-proportion note8 X- f1 @( t; T+ @" ?
]
, G) ]3 }$ @; w: ?end
2 v' \3 e3 L' r1 F+ Z
J5 [+ y9 S# }: |: N+ cto do-trade/ G2 b; ~* g3 ?0 _7 M: ~
;;这个过程实际上是给双方作出评价的过程
: `+ K. o# [. a+ Z# G, E; l# Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 j/ P7 \7 j8 k' P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. u5 B: r: u3 h5 s' j$ Y# {' O
set trade-record-current lput(timer) trade-record-current
2 b* f5 q$ l2 \. q" I;;评价时间
! u' g( I1 U2 O% P! Y5 \ask myself [6 T9 q2 _3 b: T9 a3 l h7 r
update-local-reputation( ?* d: p1 A$ Z8 |: m* l# \
set trade-record-current lput([local-reputation] of myself) trade-record-current0 p8 {# ?, o6 p1 n
]- k' t/ ~# Q2 X# u. |
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. a" E9 h2 s0 q) b6 T;;将此次交易的记录加入到trade-record-one中3 F, M' F1 t$ j8 c
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 d# ~) F' z8 n
let note (item 2 trade-record-current )! T+ t8 i8 [ n) v% ]- o/ f
set trade-record-current E g" A6 S/ z) }
(replace-item 2 trade-record-current (item 3 trade-record-current))
( s: f) C- ^" h. f8 L. h" t- h% bset trade-record-current8 A$ w b0 h* Z
(replace-item 3 trade-record-current note)1 @ O% w% j8 h
" e( d7 B" ?5 f# v5 y" ^
: z5 c u6 ^! G5 s! `7 z3 [ask customer [
" x/ m" @1 Z' w7 z! bupdate-local-reputation& K: m8 W- I j- m v4 }. c
set trade-record-current: G: @" w2 F( s* T" Q5 y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / K) w0 A9 ?. c' Z1 u w4 R
]1 l$ t, A. Q5 J% T0 `" ]
! x+ a8 ]4 k# Q$ _1 K* H7 z+ p# b4 ^; s; u' x6 j
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! @, U6 y3 v$ e/ R
+ ^4 G, A+ I# v J+ f H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 R4 F1 N5 X$ R+ Q' K5 |5 I A+ i;;将此次交易的记录加入到customer的trade-record-all中
9 T: {' s3 ]) o/ Z6 zend( Y! n$ |4 X- d2 A" r0 u7 w
) z y) [7 l' ~$ q5 X5 y
to update-local-reputation6 [+ H5 N$ v' `' y+ p2 w
set [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3 / k- _0 ~! r6 c7 E$ P
update-neighbor-total
- ~4 }8 W; x7 V+ v% `$ g;;更新邻居节点的数目,在此进行
0 n+ q1 ?9 ~3 _. G. ]" ulet i 3
6 U! B; e3 Z7 Q0 O: Rlet sum-time 0
1 @" H' A4 q3 V$ X( J# D% V' O4 Mwhile[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 G" {! q: [! V$ n! x; v" d4 H: ?
set i' j, E' V ?9 P* I7 f6 W4 L! ~( K
( i + 1)
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let j 3! ]7 X3 r! {. X( M8 [
let sum-money 0
+ u6 t0 q; O" c, F5 u% }while[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)
- V8 |1 y1 L/ Y* l0 Tset j
7 y! i0 ^' t9 O( t; f( j + 1)
% {) O# B$ r M" k" L( D0 N% D0 {]% n0 V7 m# Y& s ~
let k 32 I! l9 a) |0 o6 O" W8 B7 m5 d
let power 06 A; x9 z* J( l9 d4 L; J3 a |
let local 0
" F$ B9 `2 c! J3 `- D Z, pwhile [k <[trade-record-one-len] of myself]. K/ P/ V2 J8 u) D# G- p
[
, R/ n5 X2 y. {+ w7 h8 Y5 ]0 {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) 4 n1 T) ?( [9 s% ?
set k (k + 1)
3 l" v& K9 E- Q1 E]
3 x/ y6 M5 \7 q y: c; Vset [local-reputation] of myself (local)5 c# O7 M- |, p6 G. Q, L7 j
end
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4 b1 F* |# @$ J4 Fto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) [3 r2 p2 R, B% N7 n
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end% I0 @' C* O$ K% Z& R) }1 J# P& B
7 O' l/ l9 b: q# z" U; lto update-credibility-ijl # r; h6 G( C& L, q% q4 g( B
% v; {3 v a; @2 o: 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。. ` h; T( E+ Q0 R m: n
let l 0
+ I& f ?; N& l; H( Q6 A h1 ?while[ l < people ]
) D/ m Y$ [- N$ v7 b9 ]! e; U2 N( q% r8 [;;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) q9 _1 h# u: ^; F7 ^
[& z# x% B) u; C
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 T+ |' p$ ^ \8 \if (trade-record-one-j-l-len > 3) W$ o! Z/ @2 _, y# ]$ d! N& O
[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$ T- |/ y5 R2 Q9 }( X
let i 3
' w1 q0 F: [6 k& f6 Plet sum-time 0+ G7 l# x$ V% R2 \ Y
while[i < trade-record-one-len]
5 F l& p' o' a9 y# W; v; f[
: ^ R& l1 h7 L1 b2 A9 tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( C3 ~4 F9 J$ ]# P& ]* B) y
set i: s S2 F X' T5 b% }
( i + 1)1 K' [& F6 o+ r' Q$ o* f
]) |% o7 L8 d- [ C
let credibility-i-j-l 0
\" C/ h: h' ~+ W, t;;i评价(j对jl的评价)
9 N# A- |; B$ g7 u. R( Blet j 3
: x5 z; q9 _2 x3 j8 t- ~let k 4
w% E6 `: r4 L7 p% ^while[j < trade-record-one-len]$ j" B' |" ?( V& o8 E
[2 C9 v9 J* H2 M$ {. T
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 ^- C T5 U( O
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)1 K* v! _6 E+ M
set j
; c" t( G# m @6 @3 J5 I8 K8 x/ T' Y( j + 1): Z1 Y* g9 \1 F* H* e2 ~: Y
]
+ @- y& R2 x9 C. \- i' I/ 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 ))0 A5 N1 T, v8 G! L$ p- a* r( K
( h) @0 h3 o2 m% g/ R
9 P. ], J6 t6 w7 i0 S$ ^/ C( Klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! h6 l& |- S4 h0 T. ~;;及时更新i对l的评价质量的评价0 K L- C1 n+ Y+ Y/ _* H7 K7 V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ H0 Q8 u6 T+ o* Vset l (l + 1)
" M# |& L2 d; a# n" }; B1 J]
0 N/ F% m* Y3 Mend
1 m) J5 Q0 ?7 D" f5 v& l2 s9 |5 ]( c9 u s+ ~+ A
to update-credibility-list
# b$ \$ p. c. T: L1 E0 P- N6 Mlet i 0* _/ y2 H, v/ k5 e
while[i < people]
3 f) \ g' k+ o, h[& u, m6 I/ o. R! Q
let j 0
3 {0 ~3 A4 z% O% _. R. \- W$ q5 blet note 0! D* X3 R7 ^6 P
let k 00 b- F5 k ~+ e8 a% ]+ x# g3 v K
;;计作出过评价的邻居节点的数目4 U7 G! u/ g3 w' `: d8 N4 T
while[j < people]+ L2 T! E ^% n: p
[
* k, p5 C5 a' |4 j/ Kif (item j( [credibility] of turtle (i + 1)) != -1)
! w4 n3 a; u( d, o' L$ {;;判断是否给本turtle的评价质量做出过评价的节点3 P% v3 V% @& M) P
[set note (note + item j ([credibility]of turtle (i + 1)))$ Z% X$ M4 z- C. S! `- Q4 p
;;*(exp (-(people - 2)))/(people - 2))]
& ^$ j# F C0 ]set k (k + 1)7 j6 m s, }3 ?
]
( ?' \# w5 R$ E. q8 q2 ]set j (j + 1): ?% u3 C' ?0 {7 p7 p, |
]/ L. u6 g4 A- F9 d+ k' T2 S% B
set note (note *(exp (- (1 / k)))/ k)* Y8 [) h) w# Y# b
set credibility-list (replace-item i credibility-list note)
; e8 `8 r1 T, o6 j& f5 F$ jset i (i + 1)
0 r2 O+ z1 f* s]7 w) R% E1 ^& b& _5 x& E
end/ N$ h8 m# Z' I$ ^! F
. ]& ~( P: u+ l$ j- b
to update-global-reputation-list$ S0 n# l+ L& z
let j 0
& s" k/ o& p! m. |9 z+ p5 Zwhile[j < people]8 q0 F8 W9 x9 q7 l6 C7 D2 Z. O* \
[/ M" }! \ t6 D
let new 08 u4 L# `; v* `6 X2 ^
;;暂存新的一个全局声誉
9 p# N; m6 J/ G, K' s5 [, Rlet i 0
& C# I# R# D# ~% I% I8 A& Qlet sum-money 0* V' j$ Z% w) b% u
let credibility-money 00 S8 Z. c3 J3 q/ ]! x9 N
while [i < people]
0 ? {4 D% n# [0 w+ A! O[
2 {+ }2 v% Y1 t$ a3 u: |set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 j! x. k$ G7 M) Y- G: }2 p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) E% C; Q7 U8 h( p& w
set i (i + 1)
* ]0 ^) d* ?( ~$ u]) K, c0 S5 k! E1 E$ g
let k 0
4 R: B+ g: Q5 J! d5 plet new1 0, t4 `( W2 n. f' t9 r$ Y; |3 v
while [k < people]; S( B7 r; C: Q. K: }! Z
[$ Z" B& i- p- {
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)
( N4 `7 x' e- O) f, \7 \set k (k + 1)& W1 V6 C; l ]9 \
]
/ M) A* r* ?9 J& }/ v# k; ^6 mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 a' ^! j a9 l) Q8 E* j6 Lset global-reputation-list (replace-item j global-reputation-list new)
8 j7 F2 G6 B! V, ^% ^7 H6 gset j (j + 1)
! F: z2 \. o4 N/ q O* W# C]7 r: f6 G$ b4 X6 L; @/ v1 U2 }% b7 w
end
! b0 c% J) U6 F0 V7 q d0 F. |' R7 L! O j1 f
7 t) h- v3 h# A6 l, z
# ?5 W; ^: @9 Eto get-color
# i+ `* b, u* C% x; K+ r3 N+ w2 R E V" h* r( Z
set color blue, J: i7 d1 J3 T7 v
end
4 x ?* A( U# H+ A, }
5 D; }' k B: y& P- D. lto poll-class6 S7 Y7 s& n+ i
end
6 n+ G8 u( [- n; H$ ?, L9 j; ^1 U; A3 T7 I( G4 K1 `5 p% ]
to setup-plot1
9 d- n- A. |" W$ e9 u. q4 L5 W) B' g @8 {
set-current-plot "Trends-of-Local-reputation"
/ {5 X, F @ x
3 X( S+ d8 G" w; y7 }" o' Bset-plot-x-range 0 xmax
. b7 N9 j! J+ J5 g8 Z: w
" j; X" C% @" ^4 [6 X Y- jset-plot-y-range 0.0 ymax
( g- c0 d' \, g2 l/ cend
# m. A3 |3 F9 J7 u% H+ R) U4 D9 r5 h/ u. I* `+ ~
to setup-plot2
# y2 e$ U: @* n8 K% Z: H/ J) ?3 O' f( `( L, Q
set-current-plot "Trends-of-global-reputation"! e+ E3 f- M# ^% [+ c5 j
) S* P2 S* p6 i' Iset-plot-x-range 0 xmax; U$ C; w7 i4 `" l
" p9 c5 S4 l; z2 ^2 `6 h
set-plot-y-range 0.0 ymax& D p: z; O% c c8 b( Z4 R" t
end* ` m2 t. B* H5 H9 f
' U+ E& y4 I* y% W, t; ]
to setup-plot3
2 y; w, s6 B" f& Y- k) d- N7 f1 ?5 v" C7 ` ~
set-current-plot "Trends-of-credibility". {9 _) S! v/ J& H* g" x! F
3 ?, Z2 R* N% x% |& e
set-plot-x-range 0 xmax( D% C2 U. p' n; r& |. {
4 v+ t- _: T$ c; q# d Q( N/ A
set-plot-y-range 0.0 ymax
/ R+ L& y+ B, I X4 |$ J* n, ]end
h, b( j9 z& W) b4 ]/ k, u/ b1 j" i3 x4 U
to do-plots) {3 e2 ~, N) C
set-current-plot "Trends-of-Local-reputation"
* w3 o6 h# M: M2 ^3 Iset-current-plot-pen "Honest service"
3 X2 ~+ j2 B8 e- m! Bend# ]9 u5 a2 C4 }7 B* ?* x
' T G5 e/ p1 T* ^
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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