|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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# _$ @* S* T7 j U# }1 l
globals[
- x1 b. `8 r: _0 E( exmax) m# I5 H1 f* o1 _ _ p) p
ymax
/ o/ F3 |, ?4 E& v- w( I) N# S; ]6 oglobal-reputation-list
/ x5 f) _' k+ n" X6 x3 I
* b% G. y) U, O( Z;;每一个turtle的全局声誉都存在此LIST中4 o6 s, m* N: E# i j% b, x
credibility-list
! H/ P* {+ U! U7 d& Y;;每一个turtle的评价可信度
. B9 _4 ^5 N1 i! J, jhonest-service- T' G% z( o" b" {0 K
unhonest-service/ R1 K& @; m9 Q3 `+ O
oscillation
- _7 K0 ?+ f4 `! mrand-dynamic; q/ p( M7 T0 q' J; b+ `
]* C: B1 d3 w, z
7 t& C+ f5 C) {3 t" s* M. M1 d- rturtles-own[ a* J, n. y7 {
trade-record-all
7 p; I! t' p7 D9 J' _+ c;;a list of lists,由trade-record-one组成
- Z/ }# t0 N5 z7 o8 E( Jtrade-record-one
k0 n/ l9 k( H# ]$ ~# B* t;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ V0 n u$ l' C/ W8 O6 M
; T( _: q, l+ I( P$ H0 s( 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]]$ z3 a9 b0 u$ J9 [& Q2 R
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]
6 `" W$ g. U& I: Ncredibility-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$ \( f8 y* Z! Cneighbor-total: E9 C. e. t8 Z' `
;;记录该turtle的邻居节点的数目! b- @" m3 _4 H4 b+ U
trade-time
, U: U+ X1 H# i1 i3 T4 y) O;;当前发生交易的turtle的交易时间$ h- m6 y7 a1 g) b, L5 K
appraise-give
. c- g1 w' F( r( o4 \+ \+ P3 S9 ?;;当前发生交易时给出的评价
1 r% Z t$ n# D' w7 N$ Eappraise-receive
# q: j4 S( e: M" ?: c. |- A;;当前发生交易时收到的评价! n' ~6 b, L0 F
appraise-time
* x3 g$ J9 @: b- N( b;;当前发生交易时的评价时间
; l, }9 F/ L+ z5 K' j& dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉. F# t% I H, u' Y6 v A- q
trade-times-total! G" d+ L4 V7 a. e ^! T) y9 s( v) C
;;与当前turtle的交易总次数( ~2 o* d1 h3 D3 r) Y8 E1 E, H
trade-money-total) f [. V, h r* H2 M- R4 P
;;与当前turtle的交易总金额, H1 e+ m# l8 b
local-reputation* h" Z' o# K0 D7 j. y
global-reputation
8 ~/ [0 r& G3 P$ j8 E2 ?! Lcredibility
3 |% K6 d; m/ Y$ @! m+ W( U;;评价可信度,每次交易后都需要更新4 Q, @6 T" v. X7 g% D5 r" ~
credibility-all
3 C" X- W. O0 d0 _;;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# j* p% ~" R2 j% v. y3 z3 s B
p( G: o, T0 S: c6 r;;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 G# q5 H. E1 Icredibility-one0 E7 w0 i) T1 j
;;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. B0 Z. \: G% M
global-proportion
/ c- ?7 w* C# i2 tcustomer
/ L E' v# Q6 E% ~7 h- F0 Acustomer-no6 z2 T# f$ u, D6 u- d' q% Z0 c' b
trust-ok' a7 D- k% ? ?
trade-record-one-len;;trade-record-one的长度 M* J7 n K) M( o$ N% M
]7 M! o5 J: J% L/ C
4 k- `/ |: B8 N, j;;setup procedure: V( N4 F4 P; t
# j! @( v$ ~4 Y, C- @0 r
to setup: E6 N/ d8 ^7 }2 D: A
9 c; r; d' r$ U |6 ]. s6 T
ca
" ?8 A; F3 ?! _! W3 [; X/ ^% ^
5 \$ I% ^0 K0 Y9 E0 ?3 K3 L# linitialize-settings0 G( h! c) ~5 E, g. b
; B9 G) J, h2 r* ?1 h$ ccrt people [setup-turtles]* [2 z0 P7 z+ P8 U+ [* W+ V! d
$ d0 h3 }3 G4 O
reset-timer" \& l% j0 U# V# Q
+ m* F: B$ e8 P& w7 l8 Q0 k' ~( @
poll-class
: K7 v- y5 S! D0 c0 a$ f
6 V; m1 h' _3 `) `# w, K* L, H6 Esetup-plots& F; O. v% k& Q1 J* |9 R% m
3 o T$ h8 T& }1 o6 D
do-plots. O$ k9 {3 P1 y8 P( f8 w
end
; x, p9 I2 v6 K' T+ t; [: u' V5 z' Z/ O6 S/ `5 u( S3 Z. k
to initialize-settings
9 w4 e$ @4 e' T5 N N1 R3 }+ f0 L
( T w# z+ u/ q# M( Z. s ]set global-reputation-list []
9 X9 ]1 T7 v! j7 j6 U* A; i7 A4 d D# P$ Q7 c" S
set credibility-list n-values people [0.5]
) w; a# X% r8 H, ^' G( y6 p( v
3 |% t: H. X$ `* y$ d& ~set honest-service 0
( L0 |' k3 c, K# ~
2 D! H3 ]& @! Q/ d0 Kset unhonest-service 0
, C# o. G. I' Y. b' l+ u0 C; @) P8 r% W8 F( J e% h+ ]! K9 i
set oscillation 0
: O) i0 i+ D) Z" a" r
0 F5 Z8 \" o5 B+ v+ k, Vset rand-dynamic 0
& f }* j8 O6 e+ F7 Mend
# A+ c0 y4 A5 e* f/ `
& l& W$ m) T: v, k4 I6 z2 G' E7 Wto setup-turtles
3 ?2 {# _( i$ P5 e5 Qset shape "person". r6 C( m# l( F% ]2 x
setxy random-xcor random-ycor1 \5 f6 i2 j2 s" C8 {9 N
set trade-record-one []
. V0 p9 q, A" P2 t
/ z \, R9 U& l7 W, Zset trade-record-all n-values people [(list (? + 1) 0 0)] 4 v+ s' v6 ^9 H
8 R ~( _& ~# Y
set trade-record-current []
- o" V: d2 Z# |set credibility-receive []9 m J- _7 N6 z" R: u2 f$ M
set local-reputation 0.56 w8 g3 Y" l4 T2 \+ u" a+ K
set neighbor-total 0
; ]6 u# `1 U+ H/ j# D1 w fset trade-times-total 0
# R' X) ^) G2 L* S5 S; F: g" vset trade-money-total 0- v: E4 E9 f; D8 H1 Z1 b& ^
set customer nobody( ]! u" z3 z9 t3 b& F, j
set credibility-all n-values people [creat-credibility]# s5 B- o( C2 U) i; q2 U0 d. M# e
set credibility n-values people [-1]
+ w8 t" l' _6 C4 Vget-color* M$ D" W$ I$ k; d5 U, s1 p: }7 t
! K% s5 N; {8 z. T* m, `7 pend
* D a6 W; _( n( M& \7 ?$ N" `3 T5 G9 U3 M+ h
to-report creat-credibility
1 M% d4 N. X1 t) A* Hreport n-values people [0.5]
' S) ]# M# h, T% lend
$ m, V8 U- [9 c& Y6 G6 ]7 G( g' l1 x. e8 L( }6 p$ M
to setup-plots
3 }& n2 }1 _' ~
3 c" C+ g9 D* P# @: b5 pset xmax 30* }; c% i# o: f, d6 Q
/ b+ N1 A# x0 V( A& e# B
set ymax 1.0
- w. |+ q- C, a# W7 g d# d/ G( D6 S+ o7 \: f$ j# D% N
clear-all-plots Y- Z/ m' H5 B% \+ { M7 |% |+ n/ p
, n: h, F h3 O f0 O+ b. _' k
setup-plot1' Q( g8 T. ~$ C/ B- y/ I; f, Z
9 K1 f. D/ F" Z' n; H# R5 }
setup-plot2
1 e1 |- b. Z C
, @9 o1 D: h" J3 z5 csetup-plot32 d6 b7 w4 a( R; }4 D
end2 G7 X% [+ \( ]" g- {1 k
) n1 J6 C3 D; B5 O4 P
;;run time procedures
( o" s/ h: _ K+ ]! o. c! Q7 j+ v8 E* I
to go
; u7 g: h# T5 m3 G1 A: J- I0 F, y( K8 n+ X1 u( H0 q2 h/ k) u
ask turtles [do-business]7 z1 D- R5 c5 b/ ~1 C9 v
end( S' } v# K6 o, ~5 `( i/ t+ O
8 \. N/ \& i cto do-business
" L i3 U0 v! B) Z2 {# }5 {; M. d$ T
, R( g% k: D8 X1 m% P* q+ h
rt random 360+ ?" D! @ i1 k- ~
! e2 M' `0 M& ? P6 J/ e" v1 Z Cfd 1
. c: [8 x2 k0 l1 |9 S3 S1 W. G2 M6 n7 N& Q: U6 ]7 y
ifelse(other turtles-here != nobody)[, Z" n& R2 z! f0 C2 ?8 `
6 A1 N$ z; \6 z9 b" H
set customer one-of other turtles-here
" \$ S4 b! P0 w# r% s- Z3 ?
2 ]4 w) k. y* o3 a+ k4 T$ K;; set [customer] of customer myself
$ A) X6 d1 A+ s8 C4 q3 ^0 G# G4 w e0 D$ y9 B9 _& i
set [trade-record-one] of self item (([who] of customer) - 1) S$ M4 P' v+ `8 i7 |: u% S
[trade-record-all]of self- d% W+ V$ j6 Q0 H7 z2 \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. k7 h' o& G3 \/ Z9 r; p
* q$ ]7 `8 K& k- Z9 o
set [trade-record-one] of customer item (([who] of self) - 1)# `% e- E4 B2 C2 C. g# t
[trade-record-all]of customer0 f; W, }. N9 @1 x
" m' N, C* H" _
set [trade-record-one-len] of self length [trade-record-one] of self2 ^7 F2 c% a% {' ~" F
+ A# Z' G" `; m9 c) {. H
set trade-record-current( list (timer) (random money-upper-limit)). J& l9 p( }; D6 y4 Y7 ?
o9 M }; T( @ t2 m; e
ask self [do-trust]
2 {$ w2 y) Q A& n, O* x;;先求i对j的信任度: D- |! R1 x! A& U3 U
2 n( N- K1 J. @* [* l9 J
if ([trust-ok] of self)7 k b8 ]! }* U+ X' H2 t
;;根据i对j的信任度来决定是否与j进行交易[
, d; @4 ]- V& q: {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 U5 e) f% m0 X5 v9 x+ f
* Y) U' Z9 d4 E! N[8 V: V7 i E* b" f- ^9 h$ h* F
5 C8 Z0 {- |/ t4 Q; \
do-trade$ M1 ^! _0 U" g/ n6 ?" f& N# i
' r& A- I# i* P. G! J! Yupdate-credibility-ijl
5 ? p0 o7 g- ^! C1 _, [, i3 J* U4 B1 }
update-credibility-list
+ w( [+ P, h" F; h2 Y4 Z4 S% E0 J4 x2 V ]- [
7 x* N( u; w4 ?& N. _update-global-reputation-list' z% j. P/ f9 W0 e: [
* o; e$ i: v! [- j0 W
poll-class3 S# y. \' m; V# v1 M' B
6 i' w. D9 y2 Y& b; Z" A; |% p7 }get-color
% G, [: K. Q. ]; O0 [+ g; f
. u" v3 {$ f1 D8 Y" H8 ?/ ]( T* w]]. r7 R$ q8 g* ^$ c2 `( ]
! P/ A5 v7 p. i8 m9 t$ a% X;;如果所得的信任度满足条件,则进行交易; t' K% b! S& G2 S3 j# t. g
9 s" I$ W, b, v
[5 y( b( y" O1 h! V
: e8 m! R5 q/ Q- E2 h4 Vrt random 360
% S J3 o0 b8 Y+ \. {9 ^7 z* a5 G: ^/ M" H5 d4 ?- v; H9 j7 d- ~2 Y8 \
fd 1' e. r2 Q5 O0 ^- U3 f; w6 L
1 e( z/ Z9 K- z7 |3 W
]
: b2 `3 }; F, k% l' y% J6 B1 }+ g, C" V: w. S. |9 a# f
end
, N: M: V$ q1 }% K& u9 y' |. S# G% D+ j/ \; F
to do-trust
: o8 O" Z- Q# Y1 V$ g& X$ |set trust-ok False" [; Z2 {3 a9 Y6 q' @. F$ D2 m
5 P- h; U" P5 A
0 n& h6 L' c( x V7 m- blet max-trade-times 0
: [( Q" m5 }/ q: `( Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 U1 w: g+ [1 n2 H0 B7 D
let max-trade-money 0# {% v9 d2 B0 G6 o) e% e) O$ w8 y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
u+ e, p4 V1 S4 r4 u& ]+ ^* U( s* Klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* w/ c6 E* `) z# @' W% _
$ W7 ^/ R* B5 Q4 d* Y/ `
$ |' M/ ?* o3 ~( H! a/ I, zget-global-proportion/ {, y3 e9 s# e! ^3 }4 |8 B' [ P
let trust-value! |2 u3 }! y4 P7 r! k/ x
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)% R1 _4 c1 ^9 H# {
if(trust-value > trade-trust-value)
& f* I- d1 g' f- x[set trust-ok true]
7 o% Y" n8 Q7 c o8 X+ S* G) v0 Bend! X8 }# R0 P; P4 _
# _- {# y7 m- b% h7 _to get-global-proportion
/ H4 H0 z/ z& V, M1 Q/ @ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 h- Z0 i# i2 j8 A# |[set global-proportion 0]4 \" Q, z! C8 `2 C0 r
[let i 0
$ l/ Y# Q' j/ P! a7 i" L* |8 F+ N; Vlet sum-money 0
6 ?5 E: P" t& t9 \3 O- s! Mwhile[ i < people]
7 p! j; Y; @0 D. f- y[# M6 U9 K5 M$ p" C' L
if( length (item i
, u9 \$ S. [. e1 D[trade-record-all] of customer) > 3 )
2 f8 C* S x* v, t# z[+ \7 @( ?8 [6 d9 K8 g2 ~) E
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ b+ E4 \' e! Z]
; a* \1 K" p& P]
+ M. C3 _8 S8 i6 I2 U6 K3 G5 W) [( J3 nlet j 0
' \- k. E) I ] R. Ylet note 0
$ y+ n* p* v; D7 \, ywhile[ j < people]
; H. l, X0 h3 W" I1 O[! k% j R( r9 F8 f/ x$ C
if( length (item i
. g7 T+ H) G- L( J; I[trade-record-all] of customer) > 3 )
4 M7 p* g; j7 A7 V+ i, ^+ ^4 J[0 R0 q- Y! Z0 J8 E: V; z8 ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, I: |6 i9 G% g) l, x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) J. k) ?+ f- k: L9 E0 A1 N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 I- Y* F& ]( \: U7 F6 M]
: z. `. i, B7 G% [/ `]1 w9 h A+ V/ G8 {% y
set global-proportion note7 v2 M' }& p/ i7 C
]" t3 v% m% O( f @
end. ^- U4 J0 e0 A
" m/ A: K; V9 K* Vto do-trade/ |0 |; O6 t' ~! ~+ u" a+ p
;;这个过程实际上是给双方作出评价的过程# N: ~7 k: Q" F8 C3 e) s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& Q$ l* b" a ^7 L5 n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ c y+ L& e$ F8 b: G3 E) v1 Dset trade-record-current lput(timer) trade-record-current2 ^7 [3 L3 v* d7 n7 y, s4 [) V+ {
;;评价时间8 d4 L O+ |2 f& |& y1 A
ask myself [! v8 y( d; l# ]% @
update-local-reputation) } w4 E. b; l: w/ J* }
set trade-record-current lput([local-reputation] of myself) trade-record-current
" k9 @ d* F4 _! y* ?]3 P+ a& k0 B: W# i, b [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( i5 I8 z" j; C y- t2 `0 n. d;;将此次交易的记录加入到trade-record-one中# @7 ]/ Y5 P% O" s4 @
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 C6 F/ T/ W* Z" R- d. H
let note (item 2 trade-record-current )6 t8 M( t' _1 s# T# i8 G
set trade-record-current3 }3 r! g" a6 G/ M! E! C+ G( g# ]3 E
(replace-item 2 trade-record-current (item 3 trade-record-current))
# Q! w* J6 e7 g; k. m8 Dset trade-record-current; r8 S! B3 I$ e9 X( p% M+ ?
(replace-item 3 trade-record-current note)* l. a+ [8 I& V' K; H
" q: s" w* x0 J: z) m2 ^
: d4 U9 H- }$ U' hask customer [
, [6 e: l% t4 b lupdate-local-reputation9 h6 }- K7 l: d# q: | E- m. V
set trade-record-current
% G' H" K7 m9 H& o# F+ w6 h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 C$ {4 `$ s6 {; M) U: m
]( O0 J$ _/ S5 W, R9 F) W
8 a+ K: R$ W! e. e( g
/ a0 D; m: |5 p' C2 B7 X! K8 Yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 n q$ m/ e7 E, V2 v, x2 q; z1 o, ]2 T
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): b7 |0 E/ E+ p. B8 j7 X
;;将此次交易的记录加入到customer的trade-record-all中" L. r2 y! Z3 U; b
end
+ g; H2 c" D# C, Q( o: X4 m- h6 k. x& }- q, ], s+ Z
to update-local-reputation
8 a: S' m2 H/ @& fset [trade-record-one-len] of myself length [trade-record-one] of myself9 A# u; c- @7 l# i. W1 X5 }4 @
F" U5 z8 y3 i9 X: Z8 U+ A
' |. n4 ^( B$ w0 n; Q1 |
;;if [trade-record-one-len] of myself > 3
' `- N- U" Q3 x% d: ^update-neighbor-total
2 f# X5 q. T' {6 L# }% M;;更新邻居节点的数目,在此进行
# o. Q0 K$ W3 J+ }8 y2 D* f+ @let i 3" U8 N7 x l8 k# J3 p
let sum-time 01 e1 E, e7 Q+ ]
while[i < [trade-record-one-len] of myself]
% N* C" L# [4 w$ j6 ]9 {1 }[1 y+ N5 b5 y8 b8 k! J
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ c: P/ r$ x2 V7 @' w! iset i m* Q$ w% c3 J% p6 R7 S8 Q
( i + 1)
8 T* R/ E! N# N( }" T8 u]
8 C5 E1 O2 g8 D: \% z7 Ylet j 3
. E& W" @9 e9 R: S) U Z% Qlet sum-money 0
* R" X5 k( H! _% F# x' t! qwhile[j < [trade-record-one-len] of myself]
/ }% o0 Y3 k6 a4 J/ O, x[
3 B# }# [) k- c/ sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ l' Y2 ?4 |. R& [% r3 O0 e5 K) `9 c
set j
& K7 d/ y4 \% x7 q* w' F( j + 1)5 ]- E" R f- l: |$ O Z
]
" `* g) P$ T' ~6 |1 C2 Xlet k 3) i( Y' u/ O4 ?( v
let power 0
`9 i- ^. s. }0 b7 olet local 0
. ^4 {" ?; x: C( B5 K& F x7 G3 Hwhile [k <[trade-record-one-len] of myself]' m8 x2 u' ?1 @
[' b0 P6 `* [/ N1 o: t
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) $ W; V" p& m$ Z: K* m
set k (k + 1)
" X% H2 b4 x* e% {$ o+ `]
; Z! V9 q8 w: @& l8 b3 Y: Jset [local-reputation] of myself (local)
; f" H; Z* }# |8 jend5 o( R2 [' Z. B. V3 N
: {' G9 E; ^. J5 Z2 E% C. wto update-neighbor-total/ A2 x! i* A" ^# K& s
4 v/ ^- o0 X; b/ nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 U4 Y0 ~7 \" t' D$ o h/ M
8 n+ D& Q8 f( c$ N
2 k2 k! t' u# _% z: [: `end: ]8 K5 _: `6 O0 q7 U J
+ V) j x3 s. a9 [, j
to update-credibility-ijl 4 Y+ U4 \6 k) C4 J. L' j+ K
9 e/ V- [7 E9 L; d5 q8 O;;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。/ o& a! b0 v: S, M* o+ E# r" s
let l 0) e! ?7 K8 o" L# X: p. J& m$ H6 ]
while[ l < people ]
. \# e% ]1 j4 m0 _# E. d;;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
/ ^* J1 a3 C9 p3 D# _9 _% Q[
) a0 L( @' t1 A; y8 E/ S6 Qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& E6 K( V- M: k7 {if (trade-record-one-j-l-len > 3)
& R; `5 I8 ]+ V/ h ~& c[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-one0 _. ^1 O6 w- c3 E1 g0 i( [, f
let i 3
- G# b" Y" ~2 L! \+ ^ Q4 H; X* ilet sum-time 0
1 G" b6 z; W2 e$ S' zwhile[i < trade-record-one-len]8 t6 f5 ]1 n+ S- Q
[
7 k& k9 } s: c3 g5 X+ ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 |4 j3 w( T ^% p- z' L% i' @+ _
set i2 }$ @4 |* J2 k$ a) B
( i + 1)8 W2 k$ j: F( e1 ]* n/ L
]
! x5 X: ?& Q* I- n/ [ wlet credibility-i-j-l 08 b' s) w# r* [/ ~
;;i评价(j对jl的评价)3 q* d- Z0 P7 F7 J# ~4 Q6 x
let j 3
/ v5 p8 t0 o) t `: e: [let k 4
8 D; `8 a9 X; K5 d4 _5 uwhile[j < trade-record-one-len]
" J2 x/ K3 L+ R: v: F( u3 T[& k2 y' u6 d1 S4 U- n- i3 M
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' @# p6 u& \! d; w
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 A: I5 p$ |/ w4 y& z# `set j
! A4 U. }4 G R9 m2 o( j + 1)
: L+ {* J' ^8 k]
% V0 G* n! a* |# e. Cset [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 ))
5 T6 L) P6 O4 J1 D% Y
( o) f, a' P8 C
5 M+ ]* B, |+ Q) b rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& T" F: d+ ~+ s. u
;;及时更新i对l的评价质量的评价
+ c. |: g8 T. b9 D7 b, P! g- Wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- R8 }) v" B# M6 F, H X+ p
set l (l + 1)
" U$ K. u* j6 E2 B$ d- ^/ a) m]
- [6 v; ]% ?" L2 D* I% Iend
3 L4 |8 L# j7 [3 F t
2 e5 S, D. j7 V( ^' v2 C8 Vto update-credibility-list2 a# {( i, O+ [5 u5 W5 ]% M$ s9 ?4 W
let i 0
! R) d; x! }' K3 q. t+ Zwhile[i < people]
5 E* D0 n( p2 s[; S4 _5 Q+ Z3 i" R$ U! X
let j 0* w A" L+ V% p! T4 |0 a3 c' T
let note 0
" a% m1 t' M' `7 v. [. Elet k 04 w. O6 A# _4 t/ y# G
;;计作出过评价的邻居节点的数目
1 T7 j5 h0 P" w& E; [& f- b; Zwhile[j < people]
" n5 }4 _1 ~, S% D2 G% @ n: g$ r[
+ w8 Q" w! @. Tif (item j( [credibility] of turtle (i + 1)) != -1)" |/ Q) O! p! f& S! W7 |! [$ M
;;判断是否给本turtle的评价质量做出过评价的节点6 _$ o7 L. C! C1 r! Y+ U, u" l) }% B! C
[set note (note + item j ([credibility]of turtle (i + 1)))4 k) V, @- T7 I! E! K. y
;;*(exp (-(people - 2)))/(people - 2))]$ m( x5 N; N; S& {
set k (k + 1)
- U: [3 f3 J: Q]7 s% K- |) e! S# c4 E
set j (j + 1)
" o9 c: U s4 Z& u3 o]! A5 O# u y9 P6 y
set note (note *(exp (- (1 / k)))/ k)
6 c9 ]2 @1 ^9 \9 I3 R2 t0 zset credibility-list (replace-item i credibility-list note)0 C% M j3 _- y. g4 y
set i (i + 1)
! H& K- Q3 u1 w d- d]( `7 o- Y+ I: @: _3 g
end
) l2 b+ s B) f# S% @; L. I. R' C7 a5 m0 l/ ^0 l
to update-global-reputation-list6 t. z! t! l4 [% e. P
let j 0
6 m% B& r L! o7 P! B6 ]while[j < people]
; v$ p0 z- W5 W U& W* K[
1 J$ _4 V8 Y% W v& v, H2 I, |% Slet new 0+ p) H# g" v- H& y# N& @ F$ m! w: L
;;暂存新的一个全局声誉8 p% y* a5 i: V( ^1 a7 ]
let i 00 @: Q" u% I$ z: c( w5 a
let sum-money 0$ ?9 t6 W/ G* b% ^2 k
let credibility-money 0
. ] f+ x+ A& m9 {while [i < people]
6 ]1 v8 F- d+ h3 ~' y) t/ u[' u, ~, i }7 }" S2 k+ V5 K4 {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 F: E8 d2 r% }; E1 }% V; V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 [7 A; \) u+ D2 ~9 f% x
set i (i + 1)
- i2 l# V% e' }) S/ ~]
" \: `, ^3 l' S* J: F$ Vlet k 07 B% D& |# |( h7 [: M
let new1 0 C6 O5 ?! Z" c/ h! M
while [k < people]
4 ?4 x: h a: T7 }2 l[
+ y; ]9 M, |1 `+ E0 |$ Iset 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)8 n9 d0 q# P0 [' a' W
set k (k + 1)" G* J2 Q2 u) K6 W
]4 ]* m; j6 g2 Q7 K- I& I& ]
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 \* k3 |- Y5 Uset global-reputation-list (replace-item j global-reputation-list new)
; W' c* O! U" N# b* ~- Z$ Q0 k6 _set j (j + 1)- l. r% _9 x% n" [, a# F; V6 @! [ l
]9 q8 T1 M' k( C8 M
end& R8 s8 a3 x# i" F1 G
( q. W/ z8 g4 S3 }" \* j4 W
9 J2 O5 p2 _8 ?- Z% @, L
4 C E4 ~- v0 qto get-color
) o( u4 E- V" k
* @- u; y6 n1 W( I# o* iset color blue
( s4 j& O8 w5 Pend! ?! B" M' U0 Z. O7 F
+ g+ F* w% h# p' ^to poll-class- Y2 r8 t" |. I9 k
end8 l3 C; s0 t0 e, y2 B9 t$ k- |) R
) {" T) ^. ^& m3 R& M, h+ Zto setup-plot1
I/ n5 r: ^( Z7 u
) |- Y& X2 u* @; z+ ]set-current-plot "Trends-of-Local-reputation"
3 ~( D, Z% h& K1 x' w2 d' Y/ C! _, R
set-plot-x-range 0 xmax
$ B# z# O3 v6 O4 J9 n- o4 Z
) [: q2 [3 Y7 x/ r. |6 c2 Qset-plot-y-range 0.0 ymax( z6 G5 O) J0 u
end) `: F! T, v- M5 i% w
8 c$ a# [) D! Q% p( H5 dto setup-plot2" S3 R" b$ @8 u8 A( Q9 W7 p
: U0 I% G8 w7 c% q: S6 k( ]set-current-plot "Trends-of-global-reputation"
: w' N# M* ^( r8 f, n3 [2 R: j1 u2 a6 D; [" J) e. G# G
set-plot-x-range 0 xmax: f$ j! |3 X C2 |$ K
) E) X7 z0 B# k& {, C! g
set-plot-y-range 0.0 ymax# U, W7 L/ ]7 ~5 H5 q5 W
end" N8 u( E) Z2 [! J
% W( ^% e. W$ G& o+ Fto setup-plot34 u9 l3 U7 H( @% C( c
( ]' {/ Z# G- W& j
set-current-plot "Trends-of-credibility"
! ?+ X% i( y% R, ^
( p- E* H; s; ]4 a1 k2 r5 f; xset-plot-x-range 0 xmax& m3 `4 ]! F: {5 Q3 Z
1 Y+ h0 p: k+ h$ Rset-plot-y-range 0.0 ymax, c- ^. t- l- ~1 Q* r
end6 O' Y( v$ h2 X+ z
' g8 g8 _# ]! k6 `% b
to do-plots
. x6 ~6 @) `0 j" _( y. C" Eset-current-plot "Trends-of-Local-reputation"
* ~& ~0 S+ e! Y' n9 rset-current-plot-pen "Honest service"
2 _1 ]1 i. C) j" S! Z9 xend# q/ l& r: Q n( E K
6 L# K1 P# L, j% {6 ]( y( |[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|