|
|

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. N8 q# Y. |" M) h
globals[
0 q! }; g( W% n! h& H# y4 Q5 P* |7 v! cxmax
8 T1 f# E9 e v0 E: w* H0 wymax9 T, L x" ~! j
global-reputation-list
8 B; d: S$ p. [" s: T4 b& L
6 V' E3 ~* i1 O r. `;;每一个turtle的全局声誉都存在此LIST中
) H( A& a( v( @* x- D' \6 ecredibility-list/ _5 s8 C( @# q8 j1 \
;;每一个turtle的评价可信度
" S( P% V/ L9 H8 j% q7 d: whonest-service/ |# W# F0 ?: z6 Y8 B
unhonest-service
- L7 H# G$ }; w; @3 Koscillation
. m# I* |8 \2 I4 o3 w: b2 Jrand-dynamic
& e: C% k' Z' |7 `7 Z]1 `4 `; H6 g+ L5 a7 l* H. ?1 ]! o
" P9 i# N3 W( C( } i
turtles-own[# M. g( l* V6 {
trade-record-all
4 E& |+ z8 }6 P5 n;;a list of lists,由trade-record-one组成
+ s( [3 n" q8 y6 z0 g4 y' {0 Dtrade-record-one) g4 U, e7 s* r4 c4 S1 A/ Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录5 W* V/ c! V- a T: F! H" n
5 E" `4 @ w" p
;;[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]]- w; Q; G1 V) l( M) U7 T+ R' X
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]
% c; i# j# `1 x0 ]. w( r# Hcredibility-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; u3 f0 ], e- ?; p v: i J! f
neighbor-total
7 \/ v% x- R5 X- f: n' N* ^. q" R;;记录该turtle的邻居节点的数目; o: R; M% O! R6 }
trade-time
8 O! l& r4 l* o) f;;当前发生交易的turtle的交易时间
8 B/ U. ?/ k5 c" ^ bappraise-give
) R8 X4 t9 E/ }8 C4 T6 L0 `7 \;;当前发生交易时给出的评价, F5 i1 B7 b' h, M! y
appraise-receive3 W+ }! C. V% J2 a' |, h; k; @1 N5 e
;;当前发生交易时收到的评价
+ e5 E; r9 r3 l5 m1 _# J6 cappraise-time
7 t: |9 |5 Z/ X( B;;当前发生交易时的评价时间
L) [( q5 @! E& ~4 E7 o4 olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉5 S. ~4 ~& |6 V4 t" W0 N
trade-times-total, c/ P0 w8 v3 X! a
;;与当前turtle的交易总次数# [$ L* ^0 ?( F3 |: f
trade-money-total0 E8 P/ l" F& ?- k' [+ A
;;与当前turtle的交易总金额% E; F( e) O1 e. K
local-reputation V! Q1 C$ g( ]; ?4 S1 y( w3 h% q
global-reputation
/ c0 s+ `& W) j* o( P Bcredibility4 w# j/ P7 ?' u; ?
;;评价可信度,每次交易后都需要更新
" o; H P4 ]4 x; Wcredibility-all! ^) M0 N2 y: j6 Q# w
;;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8 g6 d5 J- `0 i* U: K/ h
& }; Q. i) d: O4 K3 s
;;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
* S5 s* X( p+ b Z/ Q. x$ [6 O# z5 hcredibility-one
( r3 [& f* _/ I; d8 x7 ` E, G;;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
( y3 Y4 J; @" j7 G/ qglobal-proportion- }) s; @9 ~% R& u: t: q
customer
5 Y2 a/ X3 `2 c7 Wcustomer-no u3 P' F- B3 \9 E* N3 w3 e. N9 y
trust-ok* b3 {: |% \3 O
trade-record-one-len;;trade-record-one的长度
- L, Z0 ~0 R% T" N# X]
: z" f+ T2 h+ G0 f4 U: @' P3 q5 @& d( f4 m P- p8 R/ w
;;setup procedure7 }* _& ^( n7 A' x' u. c
- Z& P. ?7 \. L" f M3 n
to setup* m( z9 n7 Q8 v
4 R( }9 b' E% |! Hca
3 W! Z, s, ~' i4 L5 t
; O8 F0 `& P2 I( h; s1 k3 O! sinitialize-settings
) O( ]9 T" m: v# S2 t5 \7 J- |/ }9 w) L
crt people [setup-turtles]
# Q9 Y$ l/ s. p H8 u7 P; ]$ t
) z5 i" q2 c: V: mreset-timer& }6 f/ N) i& S; t1 Y1 B
- S$ y2 _1 G& h$ [2 ?- [- U3 l4 [! spoll-class
4 w, B9 u4 H, x5 ?
# l6 I+ }: ~4 g4 d: Osetup-plots- `) d1 m3 H8 s) w5 {; o+ R7 }
7 W9 v1 q" M5 v% V: ^: U, A
do-plots
1 M$ S3 V5 @ ~5 fend' G9 k" `# z' L! }/ j* I: V
; w. u" R! T! O7 T5 u' Fto initialize-settings* u% p V: w; `
) I% q' e- N* x+ b/ P
set global-reputation-list []
K1 Y# ^* @% Z; i u; z7 p7 D L/ }8 G* ~3 e& y4 A0 [ O" N
set credibility-list n-values people [0.5]) Y. C2 H. B3 Z g0 p; d+ F
: A( x5 Y( y: M) j, p% S; Q1 J4 h- [
set honest-service 0
( d) {6 U( L8 s! e0 }- k% \) N6 V' n7 V% ]+ v2 E4 X( n2 V
set unhonest-service 04 e9 t: a& a# C# N
4 k9 k2 @: Y- f' P# k" I8 Kset oscillation 0
" l! V+ Q8 M# }/ `8 J) P3 s
9 U* l+ s) N0 E% Pset rand-dynamic 0/ X& |. b- h2 e% K9 l) |
end; A" p. P8 m2 d( o
4 q2 @1 K+ r6 V. f# Z! E4 v3 rto setup-turtles , Z5 {6 I E/ f. m, {) ?/ P
set shape "person"6 N8 @8 Z l: X V
setxy random-xcor random-ycor+ ?/ u5 s# U) h* m, I/ w
set trade-record-one []% X; e+ R+ X; S# _- ]( ?
' J5 D N) X0 f: Mset trade-record-all n-values people [(list (? + 1) 0 0)] / a1 n$ Z0 y: s, e
! T; J% x7 \" _
set trade-record-current []
/ @% a* \' `% p% M& |* x+ R$ v5 rset credibility-receive []/ z7 x d3 I/ c) z4 X$ ~- V
set local-reputation 0.5, m+ ~ @0 U2 }
set neighbor-total 0
- g9 D% E7 b/ o) S: Y0 Kset trade-times-total 0' f0 @" A% X+ F& z2 y, X" G8 _' A
set trade-money-total 0
" m( c, {$ `! C0 O8 f& l9 p( R# g aset customer nobody3 Z. O) t4 ?) u
set credibility-all n-values people [creat-credibility]4 b0 |& W& s7 E+ t
set credibility n-values people [-1]; m% p; p$ _1 f3 p" Z4 S
get-color
& H6 d# ?! B5 A& k/ T8 s2 L
7 {, I) S% w6 p% Oend
P8 k6 p+ x/ U& w4 Z
; y/ H+ A4 t0 u3 Wto-report creat-credibility
3 m; m* p" p8 [% [; Qreport n-values people [0.5]$ }) g. C4 l! a0 s! r& O
end
: Y& U; |8 @9 S3 A5 i! e) ?; b+ v) q# \. e) V
to setup-plots7 F7 Z8 x ]$ [
c1 T/ V" F/ h+ k9 C; K/ p
set xmax 300 k c& g; l: r
% L, ~4 Y4 P" Sset ymax 1.0
$ W: r ~0 f- [: I/ B7 u- a! r# J( r( f
clear-all-plots
1 V- X9 v6 o! }5 v' w- N; r. {) L5 C
$ E, z3 n& O# q( E- c6 U3 h& Wsetup-plot1
1 d _/ ^% V: x1 I+ `
- G6 |, ^9 `( e; isetup-plot2
( c# D+ j, z( X$ G: [: |& C
( v8 U. i5 n6 f! Tsetup-plot3
1 D9 i0 a1 b3 Eend
1 Q* z% s/ J( u3 k! S1 d) R( B2 W4 n% H# }1 k* u" v. W0 N
;;run time procedures: P5 W1 E. W& K% a' u
7 i; m; C/ d' u
to go4 c# K7 z& F7 d- P5 k1 X) S
0 X: _4 I' \, x. Z4 X" c! \ n' jask turtles [do-business]/ n8 E! I& Y. K& t: U
end( N, ^7 m2 |, m4 c6 Y
7 u1 F v, w% |to do-business * ~' e% M( y5 Y1 |2 m
' s; ^0 O; w3 W$ L9 o) O- {; G/ F1 J8 A! o
# B. e( P: J2 m( A& Trt random 3600 K! T& n9 L: j: H; e
9 n+ H9 e3 M3 B) e gfd 1" x, g9 N+ Q9 `" ?
& R8 Y& g! l4 y% w0 b' u2 S
ifelse(other turtles-here != nobody)[! H) i6 X: k3 A
# k/ J2 r8 q Y* U9 ~8 s. q) j
set customer one-of other turtles-here
! P5 f7 z+ y) X' k& l1 d7 s; K& y
;; set [customer] of customer myself
% b8 W2 e0 ^0 h
! j6 @5 T2 x. i; o& K: E& Uset [trade-record-one] of self item (([who] of customer) - 1)
. w2 R. _5 I3 }2 L! F4 [[trade-record-all]of self G5 V' A# e+ K" T
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 p$ q$ Y" e, d; |5 t! G5 h! _9 v( h
\. ]/ W5 N5 c2 o! v' A! G" w
set [trade-record-one] of customer item (([who] of self) - 1)5 b7 U' o5 g! X
[trade-record-all]of customer
* x, c5 h' c( P: t3 g7 X" x( k% `3 M" o0 [6 I `2 y0 i
set [trade-record-one-len] of self length [trade-record-one] of self
; i& o1 W" y, B8 U% ]5 j, w) D
) s$ P# e* P/ a4 v+ Hset trade-record-current( list (timer) (random money-upper-limit))
2 \' V, D3 A( n: V" o8 P9 M* |. N! A( g( S$ k4 o
ask self [do-trust]/ d! V' k- x m/ ]
;;先求i对j的信任度
8 C3 R% b! q* J" o9 n
7 T& v7 o- M7 A( `) _) X* Eif ([trust-ok] of self)7 |! E0 ?6 H1 g- B1 ~5 |0 }
;;根据i对j的信任度来决定是否与j进行交易[& Z5 h% ?) W- J4 \7 s( i2 i; }
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
) U- U) s$ M* Q; O D
$ t- b& M {- E! J8 U9 r- s7 `5 [[8 V& u/ t3 Z A. B) `
& F5 q0 R" ]) \ d) Ado-trade8 d2 w) a) f1 s+ n
3 g- N3 T; ?; D% V, Z1 x
update-credibility-ijl
; k* ]3 W, w- r* n1 j9 N K; m5 [7 {4 l4 f" j& Y7 @8 l
update-credibility-list. x* r& x6 G- |- W: k0 V
1 M1 s+ q- O4 G* P
: {! u4 ?( a8 o) Hupdate-global-reputation-list0 ]. g. N" \" ]1 R& J
1 k9 G& C1 d, s1 A- J$ vpoll-class
. y/ J" d# q' a- `: `% p4 G& I$ d/ y& c
get-color+ ~+ ^. s% W- R5 I
1 a3 f; b6 G" j$ [9 j2 f
]]
7 B# t- E* x- e% L N; ~- w8 c1 c3 ` B
;;如果所得的信任度满足条件,则进行交易
+ M/ f0 _, k* L: z8 U8 Y1 T. g0 V' e( ]% z
[# E y, q7 K1 G# v- Q
- P$ C. K& ]5 R, m% Q! f$ ?
rt random 360, x3 Q, S; K$ ]5 @
/ n+ ^7 x- X1 @3 L- n) \& tfd 1
1 f* T3 J. e" I1 A3 C- P( A
: U& U$ L, G1 x2 K+ L1 y]
# W" {5 S4 F% f; x f: u7 k( c! P% b% ?% n0 N, s7 o( u, Q
end
9 ^$ ]% [# u$ N5 w9 N
/ y% }% z# O0 c" c$ vto do-trust & P3 V, J: W- B- d4 g6 ^9 v
set trust-ok False( h6 q9 S9 P7 ^5 @8 X+ g/ X
* \) \1 r: b- M# ^. P" }+ o
1 m6 J. R4 a t3 Wlet max-trade-times 0
3 `" r2 R ]. {/ D' _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 ~' i( M9 }7 rlet max-trade-money 0) ^9 R s9 ^& K6 e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 M% w8 X0 W, n( L0 ^) }let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: W9 V) a# y! C$ W+ N0 Y$ x' A+ n: ?
) n8 ~' R0 `# X7 R
get-global-proportion
) V' [% K4 e* |9 Z# K9 t/ Olet trust-value R; z; w9 a: y4 r {
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)
$ o! Y+ ^: g% l7 w2 x9 pif(trust-value > trade-trust-value)
1 q8 m# z8 k o8 v) a8 ^! F[set trust-ok true]
0 \7 K6 O. m" ]. ?3 W3 Bend
( O% c1 r9 k) ^' X+ r7 _+ ?* \ A3 [4 R( e9 w. E
to get-global-proportion
% Q5 m. V# A7 y* f- I5 jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) N2 M6 l, I$ r; V5 u' R0 V9 C[set global-proportion 0]4 P* P8 Y& |6 ?) v- }# B; k) h
[let i 0% i# E5 x5 g; Y* ^2 L
let sum-money 0- {% o" M2 V* s h
while[ i < people]
, m- T. E9 p+ n[+ G5 i- e- p% K# t
if( length (item i0 e# L4 u. _, K! I& s9 Y" c
[trade-record-all] of customer) > 3 )* D4 K; z% { r5 K/ ~! B" Y
[
1 R9 w3 H# w/ m, C7 Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ k! p- U4 G6 E5 x! i- r! O4 N* O$ G
]
+ H0 s l( c6 q! X! j]
6 j2 @& v6 b; N3 X% P6 ?5 L, s0 alet j 0
0 W; e4 B2 K8 z- s4 Dlet note 0
( E3 j2 i8 {4 {' E* ~$ g0 Bwhile[ j < people]
0 D# b$ A" n3 T( Z[
4 V% X4 n3 K: Z8 B# C7 Oif( length (item i
$ v9 ]) E4 P: C4 N! `[trade-record-all] of customer) > 3 )' h$ ?! l6 D# i
[) ]& o; t' u/ u- X2 F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: X* n$ Y: X; N3 U$ H4 i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, g0 F- j4 T$ g5 ], m% M3 j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ ? T) [5 F, |" {1 T- r
]+ C- U- O: V i6 l6 |
]
9 O3 C6 r7 z9 N0 Jset global-proportion note; A% Q7 O0 f4 G, x$ Y, L
]& ~% L% [7 [* M! p% w7 _, {
end4 ? d, d7 v$ g' j7 }
& [, [ P2 b, W6 M1 k+ Z9 D7 ^5 g
to do-trade
6 ~7 O5 |3 j3 z& `4 B; n$ R;;这个过程实际上是给双方作出评价的过程
$ I, r1 i$ T& Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. ?: O. v8 s ]5 }& ]. x2 ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: Y' ~1 n" ]0 N$ s9 m6 X/ Z# }7 y) Jset trade-record-current lput(timer) trade-record-current
% b5 X. @' K0 A: `$ i3 {;;评价时间6 K$ N" h9 x- }/ c* x: F
ask myself [
1 L) w: R- O( S% p' kupdate-local-reputation4 @6 P3 T7 f5 y6 p5 V/ R+ V
set trade-record-current lput([local-reputation] of myself) trade-record-current
9 I# E+ S% X; ^8 P/ X]
: @: ?# b2 y: Z* y* _# y. lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 E+ V, d/ P5 B4 ~+ l) Y3 i: c
;;将此次交易的记录加入到trade-record-one中8 g# s, p0 ` V6 x7 S" [/ }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" J; y5 P$ P4 y4 l# qlet note (item 2 trade-record-current )( i# G& Y; X+ }1 f/ }3 H+ O4 K
set trade-record-current
/ z2 Q( E, J# t( r7 S. E( Q3 B(replace-item 2 trade-record-current (item 3 trade-record-current))
" H0 ~( |2 f- m! k0 I/ E9 T7 i0 \set trade-record-current
7 l* `- Y$ I0 \7 }6 v(replace-item 3 trade-record-current note)" Y; R$ R4 n0 q2 ]
) H6 Z8 C! c! }7 {8 I7 p5 S: O
' {, A2 f6 b8 o6 y% v
ask customer [/ U4 [* P9 P3 }8 L" d" {
update-local-reputation u- I: h2 k3 c0 F
set trade-record-current$ w5 s5 P7 Z! k( m3 I9 P, {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; `' z9 m- Y/ B# G& q7 d4 ]
]6 a& Q0 w; ]: Q
) M6 I: ^# u4 Y7 |% [: c
5 k2 K V8 u2 y ~9 `1 Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 x8 S- V1 G, y
! W' {4 D" A8 Iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 m* k* b% [& q: A
;;将此次交易的记录加入到customer的trade-record-all中
' a& {- O4 D* S6 w, i3 gend6 d+ m- y* Q! \8 K6 l- e* [ G2 B
) _6 t* n7 q1 Q: }" x% Z' P
to update-local-reputation
# @3 C0 g. h% X1 Q$ ~0 _6 ^set [trade-record-one-len] of myself length [trade-record-one] of myself5 f4 P" s! p5 f( E! R4 o6 T9 P
" k7 }. b3 n! ]$ B6 m
! L- g2 {# d; I$ d9 X6 w, M4 H! K
;;if [trade-record-one-len] of myself > 3
9 E- w- {7 S$ Z8 U9 ?7 W# m/ Q" w( Tupdate-neighbor-total0 }2 f2 Z0 g/ {! O
;;更新邻居节点的数目,在此进行
! l( k% }" a& R1 q) G; M# |let i 3+ m: u; }7 L0 g/ c
let sum-time 0- j& c4 p. e8 \ n8 \7 t
while[i < [trade-record-one-len] of myself]
# R, A1 r! w+ b7 x- Q- K( b6 F[! P$ t4 l! M3 t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: k7 N& f3 p2 f/ Wset i
8 |% Z: z6 D. R% p1 v" j( i + 1)
2 u/ }# I7 I5 _) j) I( Y]
" ^& y7 b3 `; p3 b- p. ?& hlet j 3
" b' k( {2 x; O" Slet sum-money 0
/ }1 o+ o, ^7 b: [4 }% T( }' S1 xwhile[j < [trade-record-one-len] of myself]
0 t7 C S, w/ n0 b5 |[
: l) b6 l5 ?3 Z: i8 D- V. `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)& e9 X) L, n' X! O0 n$ S6 l; E1 V
set j( _' _$ m' g% A$ @- T
( j + 1)& _$ h8 n. Y. u5 p
]
) K$ N1 o6 U) c$ {4 W9 Alet k 3# c2 O" g0 k4 t1 N9 @9 m' h* t- T4 X
let power 00 v" q. f9 E& C9 ?+ }6 n
let local 0, B$ f. [0 E- n& K* j; g+ U
while [k <[trade-record-one-len] of myself]
9 @0 J% j8 {1 Z1 I! u0 H; d* w* e[
5 G- D. Y8 e8 @' y5 x* Rset 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) ) F \- r4 c; X" ^2 d3 `: N, P
set k (k + 1)
- Q8 m; ?0 ]+ {3 c5 ^4 C s]5 T2 {3 a# W$ ]! `" S+ V
set [local-reputation] of myself (local)2 k- u+ I8 h! h: M( ]1 D. t: w
end1 G3 b" s2 Y9 Z( K8 A. S5 |
# e0 i( b- }/ P2 D' I- Z
to update-neighbor-total! e4 p) T3 Q1 |1 Q, H* D. s1 F
0 ^1 C; b$ [' s# X1 \8 U. ^# Tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ I9 ~9 K. V1 ]1 |2 }" z
3 }; E" p9 P: }4 o5 r3 J) C, ~. E- f$ @+ @9 G! @6 K3 R i
end
3 z& \1 U" L! r h& ?
2 i7 F& z1 T3 Eto update-credibility-ijl
: ]$ k! B# e) w# {& W
) p' ?' f% z x; @;;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。* S; m* l9 d0 F" b: P
let l 09 r& V7 @0 W4 R" Q: `$ w' E
while[ l < people ]' z' B/ I# ], H* Y' b2 w# L
;;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
. I, L9 R8 D4 J( [ L3 g[
; C0 \2 A7 c9 F! Dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) ?9 \; Q2 B9 C) mif (trade-record-one-j-l-len > 3)& v# L0 v; s; t* c0 V' A u
[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( J" a' s$ j1 A$ c6 b; ? m
let i 3
8 H$ m& L( |$ y+ m3 Z: |let sum-time 0
/ ?4 Q/ l U6 j2 p: \# e& O& O+ D& I" Lwhile[i < trade-record-one-len]
/ i; q) G2 W# V. P[
7 b/ C7 L( i3 L3 L8 V3 x) D Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, Z0 D2 Z5 z0 @ N- Lset i7 R5 j' K' E: P& {& l
( i + 1)
' J/ n3 B. ?1 w* b0 _4 f3 |$ k+ ]' h]
0 A8 Z" t/ S8 w9 {4 rlet credibility-i-j-l 0
}4 a; c* W( Y' c8 n) ^5 C;;i评价(j对jl的评价)
, P# P8 d# `; {! ulet j 32 d$ M4 y# F9 b4 B7 ?6 @' `
let k 49 v! ?- y6 C' o8 a, e; f2 @
while[j < trade-record-one-len]3 \- v& }+ p$ `( e& Y( t- i7 ]
[2 {4 \# Q" h% v+ {/ @9 u
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
% h8 O9 r* K# g8 ?9 V, Eset 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)
% f8 Y0 q4 Y6 u( u) N' vset j; e0 u" j( U0 P8 Z
( j + 1)1 x' [9 a, A! A
]( g f! s: a& F
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 ))
$ f# I) o: ?$ a s
6 z% g# ]% A, Y ]. a8 {0 j+ n, t- A3 {
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' Q& \; `( l1 G" K" U) D
;;及时更新i对l的评价质量的评价
" z% ?( y" B! j; z5 W+ l4 ?% ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; z' f; x% h! n7 T4 q) I* sset l (l + 1)
6 D b0 _- R7 Z]
" f' V- ]( d# S: M3 nend
6 V: F# a( @; B, b' V
* o/ l, V+ I" C9 h7 l* ]& cto update-credibility-list
a' m6 C8 V% M! @7 b5 Hlet i 0! a. @% V8 D6 ?! W8 Y1 l
while[i < people]! r. k, {( F; G3 F
[
4 y0 I- G! B: ?( Wlet j 0+ K8 \3 r+ B2 z3 h% _: P. O0 u
let note 0
) k( Y, o" o( d5 olet k 0
- H K+ m9 o3 m;;计作出过评价的邻居节点的数目
& J& Z9 D$ @" w+ ~& T0 `6 k( xwhile[j < people]: ]- b- ?: d7 E3 a4 y
[ d7 l5 f6 g) l( r5 G) \* F
if (item j( [credibility] of turtle (i + 1)) != -1)
( ^8 Z% T* ?% ~+ O, ]$ r;;判断是否给本turtle的评价质量做出过评价的节点9 d+ f0 K( N1 y \# g+ }
[set note (note + item j ([credibility]of turtle (i + 1)))! h; O. l) O$ U2 Q3 h
;;*(exp (-(people - 2)))/(people - 2))]( w% O5 N! \) D; N; p
set k (k + 1)" H9 d5 F" c/ h1 A8 T2 T: j7 j
]7 ^1 y A) E% c% M7 g& R4 n7 S
set j (j + 1)
8 I9 m- j* L- M( T]! v4 D4 ?8 a& y
set note (note *(exp (- (1 / k)))/ k)$ T4 n. ]" m; x+ ], A0 L" P
set credibility-list (replace-item i credibility-list note)
1 O2 H% R5 S4 b# Kset i (i + 1)
; E8 ~) Q( Q* m9 Y]& F% T# O+ Z; l- ^+ G
end+ {2 Q7 l" b6 V; ^$ t
* V- a" k: D( R, t b# w7 i+ A
to update-global-reputation-list4 L' V- T$ h* ^" U' X9 d; f/ ^
let j 0% s ]. g; o: v1 O7 z
while[j < people]2 l" i$ Y" y+ [4 L/ g+ O
[
" R5 [$ F' t( L+ c5 Flet new 0) j9 k2 I+ D9 r
;;暂存新的一个全局声誉' W' \7 T& R9 o- |4 J
let i 0
- H6 z" w; M$ D/ U% @. @/ Plet sum-money 0" @; m4 m# [3 S7 {
let credibility-money 0
/ t8 ^. J1 m l; G- |8 Nwhile [i < people]
1 u5 E6 V6 N7 b# d9 z! Y5 p* @[
6 X( S+ v+ e. B9 q# nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 @; q" L! }* k" E7 u5 ^set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ E4 D+ W9 M) g7 r2 `
set i (i + 1), F* e( z/ B+ P
]% Y7 j! w m8 p. ^" ]6 ^
let k 06 X& s. _, i3 @1 a7 Z8 U u
let new1 0
2 p: b2 `2 U( x- C! K; h2 i6 \1 ywhile [k < people]
7 H# f) R" H5 K" H( F[
6 b1 Y: M& W! y4 Fset 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)
: s6 n9 p1 {6 Uset k (k + 1)1 d9 n0 B& E F2 _# x
]
# n; Y6 _7 A# r, p& [2 ?( j8 T4 dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 v Q9 [- d {+ v% w3 K
set global-reputation-list (replace-item j global-reputation-list new)
5 {+ \; R5 P& Qset j (j + 1)6 ^$ m, s2 \' |: O) T% {
]
5 ]! i/ e" a, d; X( u( t7 D' A# P: T9 zend/ W2 @8 V* L; p/ u9 D6 d6 @
1 |5 q2 B* Q( k# _. |5 O, A$ B
( r, r: J a% [) U, C0 ?6 Q( M4 Z/ n% k7 E. {+ U
to get-color; [( X) ^/ E6 u0 D, m' k2 r
( X5 ~: X6 [/ `6 Aset color blue. E- w. V1 F$ k3 n% b( u* Z
end
: C% H- f' f O; b4 @. z$ Y+ Y6 Q: f: j. V( Y
to poll-class3 I M5 o5 v0 \( g" E+ a# m
end: j8 I, u- s* a5 x' k+ _* [3 ~
" H6 V6 K8 w0 Y' x" L5 J! @to setup-plot1; m4 [# ~) A- e& [2 o; }0 \# {
! N7 U3 D1 [6 [- ?2 t# f+ f
set-current-plot "Trends-of-Local-reputation"* W5 C m6 K2 O
# n+ H$ g2 {$ M2 w) f6 }
set-plot-x-range 0 xmax; I; V; a! X' l2 B
9 T' J" K+ b1 x2 g+ l1 Y
set-plot-y-range 0.0 ymax
( D0 |! w3 f2 Mend
0 ]# f _; A% ]2 o( d' Q8 ^- g! N9 j) e
to setup-plot2
/ t* K1 C2 S! R" x! \* M5 `, w U" P+ p" Z( P) V' b) [% V) o9 x
set-current-plot "Trends-of-global-reputation"
: ~( Z0 \' F5 N: G4 Q4 h( X" D) {( t t3 G6 ?
set-plot-x-range 0 xmax0 ]" |& s. _' p# O. [7 M
3 b6 o* a. ~; _5 x+ c6 eset-plot-y-range 0.0 ymax
6 b/ ?& ^2 a, [( H6 b7 xend
$ q6 ~7 ]& u' A9 Y2 k5 I8 B0 [. {+ j) @- D8 V; E% g2 D1 I5 x a: ?
to setup-plot3
$ U1 W% V0 X. n1 q/ N# r" u: V" m2 Y
5 j9 |& G6 X. Z' [1 `3 ]set-current-plot "Trends-of-credibility"
1 @" k) q( A6 N1 @6 I8 X8 F5 n; Q2 C8 h
set-plot-x-range 0 xmax- Y; r7 Q/ \* [2 h
2 z* k, y" E( C0 U( iset-plot-y-range 0.0 ymax$ e) J1 e$ F! F; }
end- Q( @- Z+ X. w8 h: S2 W" A
( l) K! L' H; w, F) \ A0 N" `% G8 Lto do-plots
, D* }, N$ ]/ Fset-current-plot "Trends-of-Local-reputation"
# o5 R" ~+ Z9 o; c+ Yset-current-plot-pen "Honest service": O8 M5 x# ]6 y" \7 b0 x
end; f N& I/ i, I0 c1 b7 |+ s5 V
4 v6 W; k( x5 ][ 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
|