|
|

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
0 ] k+ i7 f( F5 Q8 P4 y0 lglobals[
9 E! h; c9 m* F1 M* I0 F% e2 xxmax' S+ P0 h! a) S7 X
ymax
7 k: e: W; b% k% wglobal-reputation-list5 K* i/ D3 T, ^% i9 Z# f
8 b8 k- K+ R6 N7 X* N, P2 I
;;每一个turtle的全局声誉都存在此LIST中6 M0 v; n; k4 U3 y" O* @
credibility-list
/ O0 f* ~8 G+ c) p4 l# A r;;每一个turtle的评价可信度: a V V8 ?( |
honest-service! N( S3 f7 E, ]
unhonest-service
2 v! U4 E& G& i3 D2 {) ?oscillation% U: E9 x0 r; p U4 z2 [( R8 D2 S
rand-dynamic
& R* r y& ~1 `2 W2 U. ~]0 Q% C1 q" n: L0 G% Z) I
Q% x% W/ k" Vturtles-own[
3 b! q7 r. a! H4 M+ k+ U5 U4 Htrade-record-all6 }1 p) _; t/ k3 S/ D5 m& K% D( S
;;a list of lists,由trade-record-one组成, U2 E. |5 E3 @' n0 {! q( U
trade-record-one: o2 O& l, R9 \' Q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* w) ~, ~; \0 Y, Q2 Z( b" E7 B
% m, E4 S2 o1 g! g* ^5 u& B9 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]]8 p7 d n$ s6 e* z
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]
- s# D/ F& K6 |' m3 ^* ?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
. U, R- B: t Pneighbor-total% I, ]5 E2 V* E5 v! P7 C4 u/ m
;;记录该turtle的邻居节点的数目3 N* j, o6 q& Z6 F/ r
trade-time
( T2 R: t, y8 g" h% k;;当前发生交易的turtle的交易时间
! d; i6 S- t* I( T% }! Xappraise-give0 V6 k! c$ ~8 N5 r/ m# \$ ?5 \: }
;;当前发生交易时给出的评价2 u5 h! Q0 a; C$ N
appraise-receive9 _- U" g6 N; |: s9 j% t1 c' \
;;当前发生交易时收到的评价
5 _7 a/ T! w! x. J8 Sappraise-time& a' K% w/ q0 J
;;当前发生交易时的评价时间
$ v& p0 V" O5 }7 e; p6 m5 M# Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉" p) [* W5 e+ I# }0 ?1 _
trade-times-total5 t6 n- Z+ }7 E+ }4 B
;;与当前turtle的交易总次数
6 u/ `6 ^9 ^4 r$ { ~1 ptrade-money-total
/ a* t8 o7 ~8 \' Q& J. ^4 s! Z1 d;;与当前turtle的交易总金额
2 j5 Q P" p# T4 c* @local-reputation2 o* y* W2 Q8 r A0 ?6 P
global-reputation8 P$ W& O0 y: w) p- u4 O& ]
credibility; X) j# g9 J% v3 ~3 M
;;评价可信度,每次交易后都需要更新
. }' `, ~' d' T4 H8 Y# t: M6 ycredibility-all' H+ ] v/ d; I; Z$ Z0 z
;;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, D' B; y8 x8 Y
( i4 h3 F) t) q. |) {1 b+ M% J
;;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& O# Y) ~+ h/ S6 n: d' A" R+ l
credibility-one6 X) g# j% k9 p/ [2 F* S. L# Y
;;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
7 @% ~* [. W8 wglobal-proportion8 O: i# Y8 P4 q Q: G3 u$ {
customer8 Q0 D& `( M" F" ~
customer-no! _* ]( g9 g: D Q' K
trust-ok
6 j8 d5 d& Z. @- y5 m8 s S" gtrade-record-one-len;;trade-record-one的长度7 ^1 C5 B/ N( f( @
]8 u3 @0 K$ S- M- G/ F: y5 z
$ B8 E9 J) |4 [9 r1 y( [; K;;setup procedure
. O! l1 h+ [) R& z9 x" Z1 p2 Q5 I; A' |! h9 U# K
to setup# ~' z/ a& D, H4 ^6 a' v7 @
" q: Q+ F3 V5 p+ ^' P- h8 o
ca5 g, `3 Y4 G9 ^( B9 E8 O4 D
) Q5 a8 s9 e/ i/ T0 j! c% rinitialize-settings! i, }% d3 I: R, r6 L, l! G
; Q$ S: ^) d6 J% _4 h
crt people [setup-turtles]5 `7 V, z: f1 v) N
6 J, U O& M! G9 l3 }reset-timer! e |! |( I9 h' @2 i8 B5 H2 M
1 p# Z' b8 |' @8 q+ n) d, j5 }poll-class) x' n: g }* O
% _- J7 n/ e' P9 ~2 Dsetup-plots
! S' \# {* b" x8 T7 O+ p- s
# Q$ t' X" n* R# o1 c9 l) o. cdo-plots4 U0 |, Y- `* S; {5 J
end
" `& k" x7 S- P' `+ s3 j% X4 h
. ?/ I7 ]% {$ G# w& n e, Jto initialize-settings
, R ?. ?+ n, Q% H+ A& ]6 j
- C3 c, L, E$ a; _$ O; lset global-reputation-list []
6 j! D/ i8 A8 a' }/ z- e) Z7 l" A4 B5 {% N# x/ F) B7 b& A
set credibility-list n-values people [0.5]
. C- ~ l j" \4 R0 F+ {5 }) G2 `2 }3 c* Z5 ?6 u
set honest-service 0; `0 ^! ~- f, h' [ o
5 E2 o; s4 U7 K4 Z0 W! qset unhonest-service 0
' j' A. Q/ z4 _5 V) p) o/ p7 ]& _# [. q6 ~5 L1 p; _3 \7 v) j
set oscillation 0
9 P M, V1 Y7 P5 z2 G _, D* {" k2 o! i+ m, C4 s. D
set rand-dynamic 0; [2 g+ f. |% g9 J* G; c
end
7 \# ^% \: e( \: S
& U/ z1 N8 }$ x2 S; D# x( E wto setup-turtles
7 ~1 d9 W! [0 q' S% T0 eset shape "person"7 ]' w8 ?+ N2 W2 i7 R: Q
setxy random-xcor random-ycor
( k3 |+ G$ z3 T# Z3 K" L" V6 g/ _set trade-record-one []
& W) m: C3 ?, f- E5 z2 J8 q
2 t/ @/ b5 X" Y1 H+ f6 oset trade-record-all n-values people [(list (? + 1) 0 0)]
2 w" C2 \2 d4 p9 g! c$ w
6 ~+ r3 r( a- r6 x/ F" e( b( Zset trade-record-current []5 A2 o1 B* Y7 }; @& `# a
set credibility-receive []
2 q+ D1 h6 T2 ]set local-reputation 0.5
5 I8 z' {& l; x9 b# ~7 tset neighbor-total 0
( o( [7 m5 E+ G. A, a: y6 L) mset trade-times-total 0
. v( f2 q. |$ n" l3 |, Fset trade-money-total 0
' Y4 o D& K% g5 V2 Vset customer nobody& [: A" } t7 I# h0 l
set credibility-all n-values people [creat-credibility]( O/ V9 ]" L( B# }/ D% ?4 p" k( v
set credibility n-values people [-1]
" E9 \. C% k6 F! T. |- wget-color
* M2 N" q, a( H+ s8 @: S* ^1 s, e! N: O& J+ w h
end
$ L# A0 w" {/ [; }9 k* `/ i6 U! T+ F3 x& k+ J* J
to-report creat-credibility
0 U7 t/ f& ]0 h& wreport n-values people [0.5]% Q4 [+ {, O O; P& f3 s3 ]
end0 h6 j: z: o8 q: ]1 j
5 R& }/ _5 e$ H4 `to setup-plots
6 z S* t8 E8 w7 e. |
' }5 s. \+ I7 F" T+ T7 r1 nset xmax 30/ I8 t: d- e5 I. U! J; [8 ]- r
9 h( w2 r! V8 ]' D% b( b3 E, e* P' U
set ymax 1.0
& N0 m+ Z; Z: }) Q# P# w( T: ^+ A! V
clear-all-plots; ]) r) N' _ X) P5 Q+ U Y
( R. W4 M6 T# E5 J6 Z: f9 U
setup-plot1
8 I1 T9 ^% @" y% G# r' U& D% {* |5 I
setup-plot2
4 G1 A& K$ l0 q& l {7 C5 n9 l( x0 Z5 G' n) Q2 D8 O5 Y
setup-plot3
! Y$ {: E2 _1 `, A, R: x V0 f( r$ r3 T: Aend
a# [1 T/ M% Q# ]$ [3 }0 ?+ P7 O7 W" I8 ^2 R: d: a
;;run time procedures, ^" ~1 u9 ]2 y! s/ A
; m; c. @1 s# R# O: l
to go
7 ]& ^/ Z I% j
3 S; M( |* ~6 O [( m' d6 _5 Bask turtles [do-business]
1 H& a; x' z' T6 r2 r3 R. Lend/ R/ b$ s. j* L
6 A. a8 k% W1 R/ j! Y) K/ S9 h
to do-business
, F8 J$ \# b' L" h
: W' h+ g f9 W! I
; g. u! ~& L( a+ urt random 360
7 \) g4 m3 @4 v9 f9 Y/ G- E" Q8 a/ E" B
fd 14 Y) `* a/ L; E7 F* C' k% h t; ^
- K U2 @. O! y6 G8 G+ ~
ifelse(other turtles-here != nobody)[" T2 k+ c( e, _2 n4 W) _. M
& u) o! @: w, hset customer one-of other turtles-here
\7 b0 q6 w n* M2 h& I; N/ c2 u: \5 x
;; set [customer] of customer myself
, u: c) \9 w! }$ e+ ?6 a* `; ]0 R, Q" L) L% M b* K* [/ m# ^: c& ]
set [trade-record-one] of self item (([who] of customer) - 1)
; n5 X/ I1 q! h1 {3 l[trade-record-all]of self* F4 s5 N4 A9 R c2 ]- q* H$ V
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, P; g/ s# I3 F+ ]
# r2 E- F! M1 l. u" m" J7 _/ ~* Gset [trade-record-one] of customer item (([who] of self) - 1)
) t+ x5 S, _9 D0 g; I& p6 R9 K' Q[trade-record-all]of customer! J: h: j3 F, R# {
$ K# _& h# T4 |& Y" o; E5 J$ }
set [trade-record-one-len] of self length [trade-record-one] of self
X7 }4 v$ ~, b9 k* A0 N
. g* G5 ?+ ]: z5 a4 d) z2 ~' Eset trade-record-current( list (timer) (random money-upper-limit))
4 Y3 V' b$ @3 L# e6 T
7 a9 Y" {, W3 Rask self [do-trust]
. w& I$ J# i: u: G2 {1 ~* B;;先求i对j的信任度$ i3 x0 ]5 b% c* m7 I) P
$ B. r9 D" u/ }/ x4 Cif ([trust-ok] of self)5 ]9 `) Q [/ q* W2 a. h8 k/ W
;;根据i对j的信任度来决定是否与j进行交易[& b" H; g: F {3 Q# N5 ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 _( e5 l9 | Q. N6 S5 r2 g- d0 O/ {2 m9 Y
[
# k0 R5 E O9 _' v! j# a& L& L2 V3 r1 u& v! d% i
do-trade
. X1 B. s# `! ^6 N# W0 N0 D6 {5 w8 @8 m' P% m
update-credibility-ijl
) A. U5 a( T% Y. [% B! q/ Q3 H: Q( d$ G8 [$ O& B+ r
update-credibility-list
+ @" Z, A; h! B' r4 d) `) [( c7 c3 F' \* m: M' i+ C/ I
. L. o. e+ \! o# zupdate-global-reputation-list% C" t2 e* `/ k( ~. m
0 S2 q8 A# K! `; J! ]
poll-class0 \. z6 f) {! K7 G* ^
/ K2 e" K4 \' A8 U1 l; Aget-color
* |# m' w/ l" N* r5 S) S. K8 F7 b
3 {1 |1 v( J3 D D! Q/ F+ S]]
: O, X0 u# W/ s1 \" M9 {- l
$ k( X, y4 J8 p0 X( U" w2 \;;如果所得的信任度满足条件,则进行交易
2 P& Z9 L. I5 [8 {/ O P1 J3 a4 N! N( g3 V& B8 A1 B4 D
[" D( v" V( I6 W6 E% e( n
! e _8 Z8 w% F7 u& [ I( Z6 e. f- art random 360$ j- D( J' y; s9 ]3 e3 M6 s
/ b% }7 ]( }" h, r4 g
fd 1
/ Q: s k3 v8 o! }6 {
7 Y. J+ T' r: V7 k2 }]3 P( v! q0 Q( @5 d4 I0 q
( d0 s- l& f: H% }7 ]end
! k. u- x4 l2 \. s5 D8 d5 o1 j# h* _) ?5 E8 h/ ~
to do-trust
/ e2 \" J/ {% \9 C& r6 jset trust-ok False
% a! ^- B. `2 W) M% H+ x* E5 h% D+ I3 Y" I
% K6 j4 Q8 _# m. k. r2 Q0 x
let max-trade-times 0
+ ?1 |2 A% C$ p) A3 r9 X; V9 b# v! qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' @. Z5 F( o4 R1 Flet max-trade-money 0( H8 A. K% \5 X p& m6 S
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 Q. T' f! p& S6 j' S7 k6 O! W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# @( p) W9 D. m- d
5 p, w) ?. U0 y( R( C
7 _4 E$ Y% |8 }( q+ {6 t% Z
get-global-proportion. O0 }0 C& Z" o* W( a
let trust-value2 t8 o6 y% R5 z5 K4 K) b" C
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)
4 ]2 n1 x, ]+ {6 b2 u( J. p% Gif(trust-value > trade-trust-value)! n0 U4 R# k! o3 y( f) M4 K
[set trust-ok true]+ b9 J1 M2 R3 A
end- N' e& ~. q. `* X
+ d* V7 N; u, T
to get-global-proportion: r* ^" e6 R! ?# U$ B( u
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- ~7 w5 p' p Q# N[set global-proportion 0]
8 G0 y( y9 k) w5 k5 f I! F6 ?[let i 0, J, \* H* M8 [3 f+ p" N; G4 {9 e" Z* @
let sum-money 0' P* |! |: g: C! O9 n2 t' S; ~
while[ i < people]
0 e z `- g. B: ~[2 r) E# E0 B2 l& R
if( length (item i1 |, |0 l$ ]2 k
[trade-record-all] of customer) > 3 )
9 {1 n: ]0 l( m( E f2 y: U+ m[, x2 G% f& R# x3 A8 E3 S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ @' ?/ ?! x, I, e% I/ S
]
h: E7 ]1 J! ~3 x+ U]) Y6 p$ q+ ?, X4 }2 B* o
let j 0, _9 D4 w: v" M9 \
let note 0
. Q9 X& z% d7 j$ j! kwhile[ j < people]
/ J4 a" O* k: m6 Y[
0 Q7 H: p b5 Cif( length (item i, k7 w4 V, I* ]' C
[trade-record-all] of customer) > 3 )2 ~: ^7 Q) m( L! }
[
F- E( v# f# q7 l0 K6 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* O1 q( C% ?. W- z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 q9 Z( l1 F' p v5 K e& |( t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) t1 K0 D% d: }
]! p4 E8 R0 Z. x1 B1 x
]
. c, G P) P, [% E4 E6 g3 Lset global-proportion note
6 v. O. }: F% |7 S1 M4 I]
2 r: _, U5 X* R8 oend
# h. g# ~2 C$ B% t
. v/ G) h! _; ^2 g; Q# Fto do-trade' L6 s! q' a0 l- m8 k# I
;;这个过程实际上是给双方作出评价的过程
; m! i! X9 P+ ]# ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# I0 K8 G5 ~4 D8 g- b8 i+ e
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ X/ E6 y: \% M/ K3 {' k: Vset trade-record-current lput(timer) trade-record-current
$ w: M! S; x* `; l4 ?7 J/ s;;评价时间
* I3 t+ d1 c3 Iask myself [
# R9 L& U, X& x3 O! `: bupdate-local-reputation
( [; c, P1 A. @+ hset trade-record-current lput([local-reputation] of myself) trade-record-current8 s+ H. v! \% u6 H. z7 }+ d: }
]
5 f/ k- u! E. \( |" I3 W) f4 }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 u2 N( ^* \. a5 H* ]- @;;将此次交易的记录加入到trade-record-one中
% C' p, J' e. H6 tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ u; |4 w4 `! ]* }& `6 M" e( Klet note (item 2 trade-record-current )
1 u8 Y: J5 N5 |4 z+ N% \% bset trade-record-current
4 g: }3 o" D5 ~! Z3 s( C* f# F(replace-item 2 trade-record-current (item 3 trade-record-current))
6 d# \" f. z# z' p5 Tset trade-record-current8 \- P+ `* F( A% B1 m; v
(replace-item 3 trade-record-current note)
5 {$ [: H) O3 \" ]9 h3 M0 }+ @: Y* W1 z i8 s
2 u9 Z. q4 p6 n5 S/ _! ~" nask customer [1 P- W3 l \6 M2 L
update-local-reputation
( V0 E% x$ W8 t% D3 q; ~set trade-record-current1 b! M6 E {3 O6 i" L1 A- K2 W6 I+ ?
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 q; [; e) a; H9 L! O7 G' }0 O]
! ^# w" t x3 R4 B9 y8 @8 o2 ^, F, U4 ~# H1 c: |
( {8 ^9 }# O8 i& u- I$ }# r- fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 R0 y; p- _& j/ D5 j0 |
, C& q0 _) W$ c- s9 zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: Q0 C/ e- p: `! P! [+ @;;将此次交易的记录加入到customer的trade-record-all中+ y! s, A; h4 T
end2 O1 P& C# d L2 l
! Q! R# l* k0 ] J
to update-local-reputation0 j( ~' o' U) m4 t# e# s
set [trade-record-one-len] of myself length [trade-record-one] of myself; f/ Z6 Z5 z {! u3 D7 Y% b
( V" ?! K! z- D8 m$ X) S; W
! V6 I, d \/ y;;if [trade-record-one-len] of myself > 3 : c" O, }- w+ A$ e7 A! K9 O
update-neighbor-total3 k& c4 @8 Q* G$ _
;;更新邻居节点的数目,在此进行
1 d! H! [5 |; N d+ T2 mlet i 34 f; \$ d! m% I- D
let sum-time 0/ q3 U) g9 I4 J [& M
while[i < [trade-record-one-len] of myself]6 W, p3 W3 P, ?; U* u
[
. `4 M& e. s/ q0 z' ~# T0 {8 \' Yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 l. Z; G6 O" p0 l
set i
& l: \- G i# @: {( i + 1)& [0 c7 N9 q5 W6 b9 P) D X
], F& S: {5 f# d( V" K2 |2 s
let j 31 P* t) A9 Q3 J; B
let sum-money 07 ^, }5 k& u% ]- |3 C9 @1 a7 `9 H
while[j < [trade-record-one-len] of myself]5 B, [- Z# c4 Y6 Y' Y
[8 y' u5 X' f. M- t1 j: t7 j
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)
" s. u9 r1 e, w0 ^7 J; ?$ ?set j
! z6 X, P# R8 P# P7 j( j + 1) T) O5 S0 u& ^3 T7 d. @" w3 _
]
% _0 l# g6 p! _* g, Plet k 3
- [0 I0 [# I2 f J) T* plet power 0
7 V- N& h( v9 M3 A( Flet local 0
3 ^* ?" V2 H+ _9 f* vwhile [k <[trade-record-one-len] of myself]
! J3 L- Z. j) S7 M- P C[
0 t8 G, S! y( o6 G; aset 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)
* C/ n- w# Z6 w8 g3 H0 L) rset k (k + 1)
, t' s, k- p- w3 {. e- S]
6 _# o% a% m/ w/ xset [local-reputation] of myself (local)
# ]" T @8 B2 x& w L8 d$ J4 `end; A$ ?" |! j+ G8 P3 _+ T
' A3 `4 G# g% }) A# q
to update-neighbor-total
9 e6 H1 c: ^' f0 o6 L0 j% z* g. U7 m
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 w1 q5 }* b) A" u) V# y
' [3 K! G5 O4 ^% d2 m8 a% C5 x7 f- N# H. }
end
]1 W9 W/ r( I4 i8 q6 Y
, E" a$ U, G6 f! Oto update-credibility-ijl 9 s1 o( y4 P, q3 @! t. d
' v; a9 r4 b4 o7 w9 }# Y; s7 J
;;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。5 i& M# U/ s4 B
let l 0
# K I" ^" S, V1 g6 M5 ^, [' bwhile[ l < people ]. A; X& N! J) q
;;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
, W a' C9 J/ N2 g[
: f0 W6 ]' P) V( s) Q9 m7 zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, V3 \3 z. x( l2 yif (trade-record-one-j-l-len > 3)
' e, `5 O8 ?2 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 l( _- Q& ?7 |6 F5 o: |& @, c1 ]
let i 3* L/ l3 x0 W" O% f% j' C( M! {/ F2 t. W
let sum-time 0
& v5 r2 P$ P5 g6 @7 @# vwhile[i < trade-record-one-len]
& d! V2 X" N- c' b2 M( K[, @) _. e+ e6 b' N
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 b' s; K5 s8 R4 Vset i
' D7 E4 x4 D) j0 Q( i + 1)
' H1 C- X% }6 X+ I) B8 c% ~2 F& u]/ i! T) C3 Q8 |5 ]0 H
let credibility-i-j-l 0
8 F+ P9 ?7 T& H) }" A3 {* H& w5 t( ~( q;;i评价(j对jl的评价)
8 U& e- o& w; c4 qlet j 3) c. l* K9 V; y3 I
let k 4( B. C1 F5 x( e4 Z
while[j < trade-record-one-len]# v6 F, J( Y3 A* D# u$ b
[
/ ^4 s. y7 {: T2 ?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
; G% w2 X" J3 z0 F1 T* 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)
3 G* j7 m; l1 m) ^$ k }set j
% j6 |# ~' l/ U$ f( j + 1)
& Y4 B" e/ j& c) Z, E]
5 }* D& R, E+ Xset [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 ))% W/ \ h" v1 Y, E( Y, L
: V4 b4 S4 n* Q7 Q4 I
' `" I7 o+ |( M+ L) K5 w
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 H- v% v, M7 B9 \: U A3 D; n;;及时更新i对l的评价质量的评价
9 m& k( |" ^* q6 g Tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ O1 n% b5 _0 ~& t7 y9 `7 bset l (l + 1)& v( ^: Y: n& _
]
, ^' s9 M1 }4 O2 }2 d( P `end8 o7 F* }3 Q% C& J# f" [
& w: S1 X+ L. j( h- u+ R
to update-credibility-list* F0 y" x" j$ t. N
let i 0! I/ M7 X' t* e3 J! }( `
while[i < people]
5 X- F8 l1 G3 M8 @# z[( T! V( K& Q3 t. L
let j 07 N3 A. w' t8 b
let note 0
- g; D ~9 e4 z% W/ X4 rlet k 02 Z! E4 b& j. r( u
;;计作出过评价的邻居节点的数目
P# S9 C5 n% A: O- xwhile[j < people]
3 G* W" }9 ]- d6 u, T( Y[/ P) I* J% O9 p* `1 c& d q
if (item j( [credibility] of turtle (i + 1)) != -1)
$ K0 C. P! W% ]$ T;;判断是否给本turtle的评价质量做出过评价的节点
0 ?8 `' H0 k8 s0 i4 A' h8 W[set note (note + item j ([credibility]of turtle (i + 1)))
5 n5 Y5 |" C- r;;*(exp (-(people - 2)))/(people - 2))]
1 V! ^7 u% q9 s3 T$ pset k (k + 1)6 k! w" t: D# \" ?: q+ x' Y6 z
]. `$ N& \! t: M. D2 e, o
set j (j + 1)8 c$ Q2 h9 l& O" e- K
], i; r4 e( ^ H9 @3 X) Q! c
set note (note *(exp (- (1 / k)))/ k) V) Q$ e) m0 r
set credibility-list (replace-item i credibility-list note)
6 S9 U( N( z; O8 r k Yset i (i + 1)
( L! s; Q# _/ m# V]
' ^1 h" d& l, T: }end
. O' W& K/ T( \! W1 p+ n5 S
% Q6 h8 T$ x9 @ R$ Kto update-global-reputation-list
6 F- U0 y' Z7 k' H; c9 p7 s, plet j 0 a0 ~- _, I: ~, H8 f5 v4 G% p z
while[j < people]
7 |1 H/ K6 P: A/ m; |- j[
7 z3 d" ?$ A7 F% O; R8 l, }: Q. {let new 02 m/ v: M) R) c) T; @
;;暂存新的一个全局声誉
% t5 L3 z9 @9 M4 j' j. ]: C) slet i 0
* H$ U, R Q& D0 c$ Ilet sum-money 0& ?# O9 E# H$ J7 K3 M% i c
let credibility-money 0
5 q8 a$ K- U' F7 Q' T$ B& j9 fwhile [i < people]0 q( C8 M8 k! Q: Y$ |
[
: _7 m' k! W. A0 fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: E }8 q3 G3 p1 o, iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 {6 ^- {8 \7 {1 Uset i (i + 1)
P& { u. [& R0 ^* X7 F; J]6 n9 f+ L0 o3 U. m" T; T T! X
let k 08 y3 m. {! B" Q- u
let new1 0
% p: H+ J0 B- K, P6 w0 i' ywhile [k < people]" i; T" N% q1 r7 x5 [9 p4 D' D
[2 b4 j7 Q. G$ }3 c- h; ~( s; w
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)5 P0 g2 } r+ S% _" j2 G8 C( ^
set k (k + 1): G0 k7 h" Z0 Q# W, P2 W
]
3 B/ B, R) H) a* l& p/ E1 s# ]5 Gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 L% o& ~. v t: G' G/ a$ d; yset global-reputation-list (replace-item j global-reputation-list new)# ^) O; s/ a8 j8 E
set j (j + 1)8 \8 A; N0 x2 V! N$ V
]7 e) h) |9 X3 J
end' ~* M6 ^3 r8 `' _9 _. E# M" w h
, Z. o) ]5 i$ p5 b1 Z' ^/ Y- \+ W6 y' h1 N) P$ a3 j
r. H2 O# T" l6 ?! w& @7 eto get-color
* W: D: {3 R9 B5 y9 f/ d# o; p8 V. a* w) k- x) W0 D9 ~& \
set color blue
; ~, B5 Z3 |5 y7 U) E$ D3 uend) L# R& a, ?2 W. d4 m
2 \( A3 ?3 o" y' M' Eto poll-class( f! z% s/ h: {$ D6 I
end3 S2 }- Y l% b
: j5 M) C6 v* m
to setup-plot13 E! V h, l6 Z
5 w& i' [' U [- pset-current-plot "Trends-of-Local-reputation"
( x. _0 Y" |& _5 n! M
' P" S+ i" ?, \" y: h- qset-plot-x-range 0 xmax
% ]# i+ f, m- e* B- H7 J
) K3 P3 s2 P7 i) d+ }1 Fset-plot-y-range 0.0 ymax8 O, j4 } {& o5 \8 ?. ^0 F
end8 V5 n0 h* }# n5 P
' K* Y& t5 Q6 j) Q9 B# e D
to setup-plot2
, e0 y2 T# u. |- @
5 S a% q: @) ~/ j8 Xset-current-plot "Trends-of-global-reputation"3 N; z z9 R/ b' B' t3 Z
2 W9 w$ }5 g# Z. V
set-plot-x-range 0 xmax
4 ~' O) U. {0 O% X9 ^
3 a( d* e( Z* W% ~+ h/ t1 Dset-plot-y-range 0.0 ymax: z% E. h8 ]8 Y. h! ^
end
: W( K1 N- J' p6 D: ~. \
" n) Z# P* k% U5 j2 h6 p& Fto setup-plot3
4 ?3 m3 V5 u( n7 @. r" C
8 _3 @( J+ E: A% a5 A y3 ^, \# @. Pset-current-plot "Trends-of-credibility"2 T) F/ E6 j: h2 @" J L, S
% X/ d' k: I) B* x: G- Cset-plot-x-range 0 xmax1 S4 a% C" T: O% f& S2 V- \9 J
* b) n" A. \5 v
set-plot-y-range 0.0 ymax& h9 o* D3 ]! i4 n( Z
end/ h+ l& n% j" j3 X
! r& |) ]9 s; Hto do-plots
. F1 n- c+ e# V5 L4 c- lset-current-plot "Trends-of-Local-reputation"
$ D" m; ^ o, T' g6 }set-current-plot-pen "Honest service"8 X8 [7 Y* M7 ~) o+ w
end
; C) K, o5 I5 o7 G( b
! k, A0 i* `- {" L( z2 e# b[ 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
|