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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0 R3 j- B4 y2 ~/ u
globals[9 D4 _2 h6 r+ e, O/ j
xmax% E. g' f0 X$ N7 x6 i0 D y
ymax
& N: o& q- ]; S: uglobal-reputation-list
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5 p- b" N% V; B;;每一个turtle的全局声誉都存在此LIST中
$ a$ u S% m0 e& x$ U+ G1 Ocredibility-list+ g3 M8 z4 N" \: T; i; w
;;每一个turtle的评价可信度, `/ F: q* o9 N' J$ G% d" J8 H
honest-service% `, x% I) c) F3 S* E
unhonest-service
& W; q$ E4 s" M' }+ Uoscillation& E4 K$ z$ @" G
rand-dynamic" {' ?# p+ I h) N
]. \0 y R5 ?( V7 k& y( k: r
; b Z( |5 H# @. ~7 B/ P3 ~0 hturtles-own[( N" M2 N% |! @5 G+ F* M. Y
trade-record-all
n4 v: O7 |8 H3 F2 Z;;a list of lists,由trade-record-one组成
0 F5 |2 [4 B: b, Etrade-record-one8 i6 h k5 B/ M+ _- M: j/ p5 ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ G! q5 j6 d. O- O7 [' a9 m
& V8 y6 y: g R( E, 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]]
7 R- ]6 }0 e* d8 z: O& ftrade-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 M# T- H; f' ?/ [5 f3 O" L6 I
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) p5 y. \% p$ u+ e& T+ w9 ^
neighbor-total
3 |; Q8 @' T! F' K: L) @;;记录该turtle的邻居节点的数目
* k7 ~% ^4 G' j7 ]2 ^trade-time
" Q- i. x; f3 {. J: x;;当前发生交易的turtle的交易时间, R: h, h1 [* ^8 q, j
appraise-give
" i2 b, I' d$ D% b;;当前发生交易时给出的评价
: F# o/ I) l: q* }: q* i& F# J, Zappraise-receive
/ s3 I0 r3 N K# p; b+ }; Z4 ~;;当前发生交易时收到的评价8 `1 N% a! |( D/ d0 y6 R
appraise-time
0 n& N% Z Y" g4 n" m;;当前发生交易时的评价时间
* ]* |3 `! v3 olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉$ z+ S$ F( g1 \2 \
trade-times-total8 R1 R* H: E$ I; u
;;与当前turtle的交易总次数
) U! `$ j' `- I8 Y9 d8 Ptrade-money-total
. F, `' U% `4 L0 X' J0 \3 ]6 L;;与当前turtle的交易总金额
) J% u4 n9 o3 X' Y* O# Rlocal-reputation. d2 f. s3 c, t" [/ g! p
global-reputation
" ~* c* T, v# n% ^* ucredibility* o2 e ~) |' z% R- L: y* G) ^
;;评价可信度,每次交易后都需要更新
9 j: K# n& O. c; Zcredibility-all9 O- o, f; ?6 _2 T! h' y
;;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. }. k. r7 o: Q2 \6 @
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;;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
0 K2 Y: P% u- H( w# P0 M, t. Ucredibility-one
+ f% ]2 d: S# t4 q0 F;;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
. i9 t# Z, {; [/ O9 aglobal-proportion
8 d m, F5 g; w n' C' Xcustomer+ i# j, B# r! R0 x8 }( i4 |
customer-no, b# I4 P$ G% X6 s6 I' M3 R. c7 y
trust-ok! v, D* x6 x# {3 t8 {
trade-record-one-len;;trade-record-one的长度
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4 k4 C( S7 P9 A! G: F2 l# Q% |2 d8 D& @/ e4 M8 q' {
;;setup procedure$ q" R) C5 j- l. J% w' { h
$ z1 A2 |# W7 K, ?to setup
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ca
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initialize-settings; f& N8 i& m5 H% D5 z
. C7 ^/ ^: ~1 _crt people [setup-turtles]
& G6 q8 t8 G5 Y4 M' Y* D* s) |& a% a% Q% C9 ?
reset-timer6 j* J8 ]9 b7 q7 a4 ^! E
; ?% y4 H0 A: [ J ppoll-class
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setup-plots# y8 }& }& u2 C6 p/ `3 p6 u! p& E% e
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do-plots
* o @/ d. u5 C) Z% |* [0 t. U' Hend
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* N0 N2 h e# R, c5 Wto initialize-settings8 a+ |, q6 J/ j1 @2 l8 X
0 U9 }9 s3 L/ y" O' Xset global-reputation-list []: m0 F0 O$ V- t6 e" q9 [5 _
: t7 _! |3 w# a5 a; o4 Qset credibility-list n-values people [0.5]/ I+ l+ U4 {' S# X8 V- t3 W7 t
! y2 _( K' j/ Z5 Q9 w
set honest-service 0
( b" d2 @2 e! J: t
) A( W0 |3 ~$ S- Z( Hset unhonest-service 0
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3 D+ W. w% F d9 R9 dset oscillation 0
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set rand-dynamic 0
% F" _7 c) `% ]5 J9 Uend/ A6 Q# b5 \+ f
8 L1 T' a7 n/ t% Q2 a6 y" Kto setup-turtles $ F+ R0 N% r( r
set shape "person"
@( j9 O/ j5 @% I0 `4 R$ p7 _9 n E# ysetxy random-xcor random-ycor
- g! V+ }8 d; m1 Vset trade-record-one []
" B5 n6 `5 E: @' I
# ]+ M6 b3 m& l; O9 t0 F- x. ^set trade-record-all n-values people [(list (? + 1) 0 0)]
/ \+ o* h3 b. Y% q# R" `0 L, V* P
4 ]4 B) m2 K1 A" V$ Mset trade-record-current []
5 Q5 d5 }. o- S. P$ u2 A/ I: q0 U( V4 Uset credibility-receive []: k/ f+ M+ P" M8 e# D
set local-reputation 0.5; q+ _1 j7 c6 K/ `
set neighbor-total 0
m6 p* ?- d: h* o3 o' uset trade-times-total 0) }$ S8 a t* Z0 P! P
set trade-money-total 0
+ f, ~1 M( k# u7 qset customer nobody
2 y1 k: J3 I! k l7 h) W% v0 cset credibility-all n-values people [creat-credibility]& K3 d, L( _3 S( S; a
set credibility n-values people [-1]
8 f- p5 [* o f- _, l- Dget-color+ O' h8 b n& m- S
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end
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to-report creat-credibility
! W' ?0 e5 O, ?: p% K; Areport n-values people [0.5]$ o7 H e( n9 U# l0 p
end
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to setup-plots
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, e' }7 ]/ g3 U+ f4 A3 |set xmax 30
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: \0 x' B. l0 h2 m0 pset ymax 1.0
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clear-all-plots
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setup-plot1
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! G) A' G( O" |# Ksetup-plot25 [0 G+ e- j& S2 t# f5 X
/ o1 G6 c7 p' a; [" Nsetup-plot3
2 J4 c' l3 B& Xend
Q* f9 ~( |: s, ?, o j) _5 k( z7 m4 D4 |5 X v# {0 F, c5 C
;;run time procedures2 @/ T& `3 R0 P0 X
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to go
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! v* n! o$ |9 `+ V3 V! o! o6 Hask turtles [do-business]
: j4 x5 i5 P* T3 Y, G# ^end
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0 W' e! r/ A9 c0 v' S6 b8 O& U! D" qto do-business
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rt random 360
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fd 1+ F( D/ y# }+ f1 w( @+ u5 e
# ~$ _3 ]! j, p0 T
ifelse(other turtles-here != nobody)[5 o; T$ e# l3 J* N8 ]' s; E, V
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set customer one-of other turtles-here5 _# q# Z/ F; ^# W+ _1 x. B
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;; set [customer] of customer myself5 _ W/ E$ X' V
3 z0 v6 s/ Z6 K8 |& Mset [trade-record-one] of self item (([who] of customer) - 1); |0 a5 k$ H! `; C! n1 h
[trade-record-all]of self1 U$ y1 U6 }, T9 }: F
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 [4 E. ?! e( _9 h$ ~
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set [trade-record-one] of customer item (([who] of self) - 1)2 u" B4 {* L" _
[trade-record-all]of customer4 k1 O+ i) W. G# E
{% N C0 ~5 P; A' ?8 j
set [trade-record-one-len] of self length [trade-record-one] of self; h0 g$ N# R! {3 V0 {
: C0 M& R, e# v4 I' Pset trade-record-current( list (timer) (random money-upper-limit))7 O6 n7 q2 D1 u- w( n7 `5 d
& b# U8 z1 x3 D1 ~ask self [do-trust]$ m3 D& y5 f+ h5 e
;;先求i对j的信任度3 C1 S+ ]+ U' \8 M( `6 C1 `" k) d
8 k. z9 @3 z9 w; ]if ([trust-ok] of self)" |0 E! c6 j: F
;;根据i对j的信任度来决定是否与j进行交易[6 J( V3 c8 }: C4 v
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# D, @. y- L' U
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[
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do-trade8 n% A8 |0 Q, c) C6 J6 G4 z
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update-credibility-ijl
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* n0 Z9 ~) \3 O( D/ {" r; f8 p4 Uupdate-credibility-list
y' l& r2 U. }4 m2 A# A5 C. p) ]( [- S! y
+ Z- o9 [+ j* u3 h3 p
update-global-reputation-list3 c: O! ^5 M* O
, S) r2 ` _7 }! r- G4 F
poll-class
3 I2 K5 q E) A2 S: Z% J# }
) q$ N+ U+ ~5 C! [+ N* Gget-color
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# L a& ?5 ]- ?' {]]1 H/ E- g! \7 B" }6 o/ p
8 L, y( }7 e& f" r( U( p
;;如果所得的信任度满足条件,则进行交易' h3 r" y1 y& ~+ L
/ J. L5 `* @/ D[
. K: u# C' B$ K
' D* ?6 v' a4 o$ ]3 B5 u$ Xrt random 360
: T7 v% {( e( d7 Q, G( _. Z; w4 F7 o" Y6 E
fd 1
1 o8 n$ O0 F7 j4 s: j& l/ J' \6 e* q2 i: s- ]
]) d, F# \/ q, Z5 l7 B+ \( I- _
M0 [ o) a. e/ C$ {& v% S. O
end
8 a# X3 A H3 B% ?# d6 m1 b) U. y1 T- P* q- X$ \: l p( J
to do-trust F5 T# N5 V3 S6 ^# p
set trust-ok False
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let max-trade-times 09 a; C5 Y1 ]. h# M( ~. `" n( I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# X- u$ U9 G" Q) T- f$ V* Y6 j! a
let max-trade-money 03 _0 v+ l$ b6 q' U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! Y" h7 w4 J' h$ C+ B% klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- O+ O- x" j$ K( k
* e, H) u5 d# ^; ^0 f/ t' d* L9 M/ A- ?' }
get-global-proportion
. k3 T" A5 \0 k8 Mlet trust-value% r. S/ g8 z) t
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). A6 D) p& Z2 m" ]2 ~
if(trust-value > trade-trust-value)
) t/ |! q8 F V2 g# T6 ?[set trust-ok true]
9 r& B7 ^' G! c7 T% E! Cend6 c3 b$ X! e- P
0 k+ Z5 d3 F2 f8 V
to get-global-proportion
: M$ S2 S0 |" a1 b" W$ P3 n4 Bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), y. x y0 ]. e! l# A4 |
[set global-proportion 0]! G# r9 L0 S7 x5 e
[let i 0
: D3 M+ a0 l: t0 z( x1 _" \& Xlet sum-money 0
5 @5 y7 _, Y+ ?' C9 xwhile[ i < people]
5 k1 {% U8 l) N4 M, f7 [! ^[
# W2 K. {% C1 }if( length (item i
# H# M! J8 z, d' v5 W/ Y0 ^# P[trade-record-all] of customer) > 3 )1 Q! G: [' N3 d5 }( u3 F
[% X+ D0 ^$ d: L; g+ r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))" h; Q3 S e; \2 M5 Q W. K% |
]
" s9 x' Q. e$ e7 Y4 ~]
) r0 t! @9 W0 Q# a$ ]! Xlet j 0
9 r/ U* L, Y8 f, ulet note 0 i2 @$ j6 ^7 ]: m
while[ j < people]
% a( _9 z& q Y[
6 z$ Q6 V5 H$ q* Y0 }& S2 F2 |; `if( length (item i: r! b5 ?4 X' D# J: @- f
[trade-record-all] of customer) > 3 )+ E" a# b; _2 l7 g+ T
[
; L5 Y: @7 \7 Q/ B! P: O6 nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). V* c0 q W9 E7 [# u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 U# O2 V) l4 p( t0 P[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 {. b2 ]* U" m+ H7 t4 Y]7 K1 K8 ]3 q% `$ G% H
]# }0 d8 |8 O5 Y4 @# r
set global-proportion note
^; y6 W/ k" b* { R$ {/ j]: G4 N& l4 _, R, o
end, I, y$ g m0 q, R2 @5 d8 O
' e( `5 T( {# F) T# D: p% g" K3 nto do-trade
- I2 ` H% D3 m* X8 \;;这个过程实际上是给双方作出评价的过程
7 X( H: h6 S" F5 Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: j' y8 E- E% f8 H, X8 _% e3 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. y2 b5 L* [# |0 ~8 i* ?9 t- wset trade-record-current lput(timer) trade-record-current
* f1 d2 e J* o0 h;;评价时间# t' o; V9 j7 N& q3 ?" J3 |2 U
ask myself [
& x0 {$ d" Z4 z. F% f3 kupdate-local-reputation" Q; t+ R' y+ D$ `# i$ ?, I
set trade-record-current lput([local-reputation] of myself) trade-record-current* c5 [$ _! S0 a. C# P9 o0 q
]
9 O6 i- B$ w5 d0 Z8 iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" Z \: a% i: h4 p5 n;;将此次交易的记录加入到trade-record-one中
T+ f" f7 R# x' W2 m1 U$ bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( E9 m- J5 \# t
let note (item 2 trade-record-current ), u% D9 E3 d$ o0 p) y
set trade-record-current: t; Q% E# o6 A0 d! K
(replace-item 2 trade-record-current (item 3 trade-record-current))
- G( f! K$ G3 l! l! Y& A6 Aset trade-record-current9 P& W1 V! U' x1 ?% K8 i3 B8 u
(replace-item 3 trade-record-current note) _: w3 x4 A1 |8 \ a+ z" E7 g
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ask customer [% b& ^' Z r v! s7 }3 Y% {) ?) X
update-local-reputation
* n1 c% M% L. E7 \1 o3 j5 c- eset trade-record-current
4 z9 n4 l M& \) P3 b" |(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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1 t2 P4 [! `. J% |) \' O3 M: }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ g) r& u& @- m8 U! E$ L m- m9 a6 O6 q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): J0 e$ Y+ b2 {( }) |; G
;;将此次交易的记录加入到customer的trade-record-all中$ ] v$ q5 t9 [- o6 L: J" u
end
6 k' a: k' ~& s7 y
' d3 j. b, q" s8 D( r# tto update-local-reputation
& k$ q) ?' {: S; Y6 Nset [trade-record-one-len] of myself length [trade-record-one] of myself2 g- f W; f; ?6 {' U; b! c- j7 d
; U) L! a" s& { I
+ h& c; x' \# `;;if [trade-record-one-len] of myself > 3 : V1 A3 z, `+ X3 Q+ {
update-neighbor-total
# R5 Z3 z+ H, T% Y;;更新邻居节点的数目,在此进行1 e, L" r6 ~+ P4 ]
let i 3
5 k; U/ D& J$ N" ^' F6 wlet sum-time 0: a0 n3 Y* i: p) s
while[i < [trade-record-one-len] of myself]5 R" W6 z: n5 G
[" h% s; E4 I+ P9 [0 P/ k
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% D w0 H; v* L7 Mset i4 E+ M% D* y% B& l
( i + 1)" R& T& b6 i. F. K2 v7 e& f* S
]
- l' b, d+ Q5 z1 `! w! \let j 32 M. g) B" l: ^% |) \
let sum-money 01 {8 k& J, n5 H8 z b1 M1 u X& d1 R: m8 ^
while[j < [trade-record-one-len] of myself]
+ f2 S) d2 F0 g+ d3 g[" V4 g$ r8 e% Q* a: i
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)' j1 c" v8 ?( W
set j
0 @( C8 R) i) ?$ ~0 S( j + 1)' C6 A! I. `1 B, y" |, d' j8 Q
]+ I4 e/ N, C2 b: K
let k 3
& f$ D3 _5 a; r: P& G1 x' Wlet power 0
) @2 x7 o5 q3 q: V8 Zlet local 0
& @+ P8 ]( c$ D3 W0 ]0 ^ Uwhile [k <[trade-record-one-len] of myself]
5 k O: |/ s8 k) l0 {5 y[" r5 H# C) e! p! a- a' p$ X
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) & _: i1 {+ r2 G! S8 j# a: t
set k (k + 1)
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set [local-reputation] of myself (local)
; u- `" z( |9 i& m5 Bend8 M; j. M- s+ t3 ^$ \1 C( o
0 ` Q" B! a( @) d, P! Dto update-neighbor-total( [8 H. g% t8 q
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
0 D$ O2 E4 A- V
8 w9 L/ m# T3 [5 S+ Q; {; yto update-credibility-ijl
" M5 `' }3 b7 q0 x9 K* l1 m0 J) `6 V5 @4 f0 m' 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。
8 M0 h4 N }2 s% L) V0 |let l 0+ O* G4 o( A2 c9 P/ }1 K. N8 Q
while[ l < people ]
, b6 X* C( j* [% I+ M) y7 R;;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8 |4 j' \% V$ [' h A
[
, [0 e/ @( I% clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)! I, |5 z& R, m% r: R
if (trade-record-one-j-l-len > 3). E0 j( v4 N, [ e$ \7 {
[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% [" ^: k$ Z( T# W2 K9 Y
let i 3
, r0 Y: n" n9 G O1 I, d8 ]let sum-time 0
' F6 P0 N& C* ?; g9 owhile[i < trade-record-one-len]
- b1 r S0 ^3 `0 \) I0 F: y; T. M[4 Z/ e, ?& Z1 n! O/ q& x, q; H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ C0 T# M. { P2 P Y
set i. v2 H: T' l) J& S: ~: H7 u
( i + 1)
# _! J5 v4 R$ Y; o]
5 X+ J- T3 ?) b6 M; R- ulet credibility-i-j-l 0
: s, Z7 h2 M: ~( D;;i评价(j对jl的评价)8 t9 o+ a/ N0 V5 h
let j 3
e* z+ K3 Y- alet k 47 P& _8 W5 O/ T
while[j < trade-record-one-len]
6 Y+ C8 r) }% X[ |6 O3 k% ]5 a8 n9 q
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
% I6 H5 ~: X3 C, n/ o0 Rset 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)3 A/ b% V4 I. Q8 K2 R
set j
s; l% x- q; o) W2 x0 m/ N( j + 1)* x# K$ w& @5 S0 g; [
]6 _- z. n6 p7 m
set [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 ))
( {7 F9 Q2 l' P7 M6 L& |5 C' m
$ X8 f$ Q$ Y K; z2 C( g# Z+ \% b, B& ^( @
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); F% m( R4 k, e6 ^, M( n; r
;;及时更新i对l的评价质量的评价
1 E1 Q6 k/ T( n: J9 x3 tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# n; q b, e: F1 O6 ?! B r+ z
set l (l + 1)) V! s8 E2 ]9 i p6 A7 v3 O1 \
]
# ]! H* G# S0 z, J) Mend
% z. t( \1 q/ A* g ]9 n$ w6 ?3 R1 G+ N% P
to update-credibility-list
" G# E; f& ?$ @1 a2 u4 hlet i 00 }: G0 _) J. V& r& _' O$ ?: a
while[i < people]' t; n! F9 R8 _* A* G5 u
[
5 @: M* z U3 q: n# llet j 0' l1 A4 y2 V1 t: A/ H" w! e7 \
let note 0" q9 G# J. h6 m( M$ j
let k 0
6 f% i' s: E* l5 x9 u) L;;计作出过评价的邻居节点的数目" u- K" D# S5 W' X4 ]5 @
while[j < people]4 ~. W2 Z; Y9 V$ e
[
' Y0 N/ i' \; W" u, qif (item j( [credibility] of turtle (i + 1)) != -1)* r; ^% Q* R: v6 g5 A7 c
;;判断是否给本turtle的评价质量做出过评价的节点; e" V1 O5 U: g/ b
[set note (note + item j ([credibility]of turtle (i + 1)))$ i" O8 x5 F4 [# b8 Q, ?
;;*(exp (-(people - 2)))/(people - 2))]6 u" I: s* k7 d( l& H* ?8 h' k
set k (k + 1)
: E( d; V! h( k5 k5 Y]
9 C$ }: b( i+ ?" Y; `( C) ^/ p9 {set j (j + 1)
* H) P4 {7 B5 ~5 e8 t]" V9 \8 g, u$ \& ~7 L. h
set note (note *(exp (- (1 / k)))/ k)5 N5 E2 z) n! H
set credibility-list (replace-item i credibility-list note)
- C; ?: v- ?1 g! F: r" r, hset i (i + 1)) o5 K) ^4 ~6 \6 S# B+ ]
]
! t9 u' |9 D/ Z0 _) D+ J- cend6 v& q, O6 H" ~9 M$ H2 R
" u. B9 Y; @ m
to update-global-reputation-list5 s7 I" Z; D* V6 L3 z1 |3 H1 r
let j 0
! d3 q8 Y" H$ W3 l% {2 U: }while[j < people]- l# R0 e( j' Y1 q
[% j6 ], D& o/ U, r
let new 0# A6 q0 W c0 @. F0 H
;;暂存新的一个全局声誉: u6 C/ U. z: {& g$ w5 i
let i 0
; K7 S j* ?3 C. L; N! |let sum-money 0/ G# ?6 F% a3 R1 p, [: Z+ f3 k; m9 I
let credibility-money 0- b* m+ E. b2 O* {. d
while [i < people]9 o8 B8 ~, C9 E" b& `
[
" ?1 m. `# Q4 l" O- Z6 b- m. dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* I+ {- M" Y8 {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 ?/ u/ d- @! N" Q% q. B5 Wset i (i + 1)
" Q/ D' u H- y]; W) j6 D E( m8 U
let k 0( K1 l) V% f! i$ Q" Y! R
let new1 0
' l/ W1 \5 U/ ~9 I& M* F; o/ zwhile [k < people]% B! a$ `+ \% b, I4 ^: f! T
[7 C$ w @7 Y7 c7 L/ z' P! Z% ?
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)
+ t+ O, B9 N1 D/ Z! kset k (k + 1)
2 ?/ h, p/ {( i* C]
- u' L5 l+ O3 m% k: L- Z gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ b6 _( s& R+ N, I& g" Dset global-reputation-list (replace-item j global-reputation-list new)
9 Q: X6 x4 l5 n2 r. \/ I+ rset j (j + 1)0 f w" n F j, Y* R8 ]# `
]9 S- c4 Z# ?( k, ]+ X( j$ C
end
& c7 u' }5 ?, v2 |0 b
0 u' s$ C2 x0 n! k
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: \! @+ S4 X' f7 E; jto get-color
U7 v X1 ^9 t2 h' z; s2 p1 v, x8 k2 ^ ]
set color blue0 H n1 A$ \4 v1 s8 H( k( [
end: e% B- Q( m* R) @" w9 g
( e, w/ \) {6 K: ^: E& G5 D
to poll-class
8 C# \2 z% p) mend% c/ P4 m' J) B2 e' I6 z) H
/ K7 f( ~% m9 \# Q! }# xto setup-plot1
8 R: C! F) z1 K7 o9 d2 Z4 [3 N& Q$ Q$ H1 f1 B+ d! A7 A* G8 f
set-current-plot "Trends-of-Local-reputation"
6 M7 J/ A. @. \9 Y' v# s7 R" I" A1 R; J
set-plot-x-range 0 xmax
+ z! d$ ~1 Y2 ~) T7 e- B* E. ^. f
7 g1 G) t. l8 Q ~6 w, zset-plot-y-range 0.0 ymax0 [6 r. X! V9 F: @8 b
end' J1 C3 V! E. u0 \, J- ]
: l2 t& V3 o7 @9 `- U
to setup-plot2
& M* e4 e2 ?" G! `( }8 o9 Y& Q
) K* E8 X5 T0 Lset-current-plot "Trends-of-global-reputation"% r: {& { D' z
|; O" ]3 h: n0 p+ Z- f, Zset-plot-x-range 0 xmax
5 P& L- K& b" a9 p
0 @2 Q L2 H4 z( i8 ~* J+ sset-plot-y-range 0.0 ymax* c- k3 _. Y. N2 S x H
end2 q' G, T' y4 ]7 D) X U% B
" b) {, B" v% Y6 v% j" o
to setup-plot34 {; L( l/ P+ e( N+ o
, ^9 Z. R* D, Q3 P; g
set-current-plot "Trends-of-credibility"
& K! p5 I( n ^/ r
5 ^' c! x: F2 r9 F$ H iset-plot-x-range 0 xmax
0 N, Z0 O8 H) N* W% A4 t5 m# S! I5 a' ~' v
set-plot-y-range 0.0 ymax
Z g6 D+ U' W8 ~/ }, Kend
% E$ u$ e4 r {) r0 F' S1 T8 b* Y$ L' u) p5 W
to do-plots, {4 t/ B" S' X5 h
set-current-plot "Trends-of-Local-reputation"5 m" O2 U8 ~2 R/ l4 m4 @6 h
set-current-plot-pen "Honest service"
/ ~* K3 ?( M9 _( s( Iend
8 v2 b7 d( C2 P( P+ u4 U8 r, ?1 O; d$ m- W) Q* U
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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