|
|

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
. F: X4 |1 A. |globals[* p' t' z* L" r; m6 v! g
xmax7 ]# T6 F4 L* G5 ?
ymax
9 p+ C) a# j4 dglobal-reputation-list% o, S" {5 \% w/ Q0 F; e
# c" [. I- z3 L
;;每一个turtle的全局声誉都存在此LIST中
/ D# ?% o/ ^, Rcredibility-list
0 @- r, H0 C" @* J7 l;;每一个turtle的评价可信度. z: T& ^1 U4 Z; N
honest-service* e1 F+ k; C" j& j7 p: x5 l
unhonest-service
7 B$ {8 m. w4 l& z6 U6 {oscillation
7 u4 X3 k/ p$ x( r, @4 Srand-dynamic
+ z+ P9 v/ w; I' V$ B]4 U7 s- W. @8 p& L* D
! m# j. I! s7 U6 b6 w: uturtles-own[6 J0 L6 h3 P' W4 d, w! |
trade-record-all+ _* S% K/ ~; U. {" L
;;a list of lists,由trade-record-one组成
8 K; W: _2 Z! v2 m$ }) ?8 Ftrade-record-one7 c9 P! B1 y% D( p/ Q+ |+ 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& c8 q# g2 W# \* j- k) H5 ~: B
& F) T$ w S6 P% T. }$ H8 t% X4 N;;[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]]- k; i6 P' h! G- M' u
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]$ I. c" K6 [) j! A% F6 _/ D) b0 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! Y6 }5 r `* D* [& I- b/ N5 n1 `
neighbor-total
) i4 }% v" O) s' V;;记录该turtle的邻居节点的数目$ c: x* z& {1 i5 D( t5 _
trade-time8 ?' d: j! j, e7 x/ g7 M3 f! G
;;当前发生交易的turtle的交易时间% @# _! d1 T& l' g
appraise-give
! F) e+ D1 G- S+ E$ p" D4 D3 |;;当前发生交易时给出的评价
1 I8 C8 H' w* ]* zappraise-receive8 z8 B1 h w- b1 o
;;当前发生交易时收到的评价5 I5 i5 }4 l K
appraise-time: ^% ]" i7 w8 A: p, C
;;当前发生交易时的评价时间9 g1 L: l) n W. m! C8 P. f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, k+ a3 A6 y, g7 f6 |% F y
trade-times-total
( G: t5 e8 N$ @;;与当前turtle的交易总次数
5 F8 ]) Y0 b7 N; K, v2 y+ jtrade-money-total# G6 f5 s. A* Q5 m
;;与当前turtle的交易总金额
. y3 Z3 S' ]; L! q0 Vlocal-reputation. H% M8 J/ Q( C, j/ c' n
global-reputation
1 H1 y4 F7 V% [9 W* `# Wcredibility
' S* g. \# R! o. c8 f6 j;;评价可信度,每次交易后都需要更新1 J9 x0 n8 r- R& M+ ~+ r. ?. F+ W$ n
credibility-all$ a1 W. |2 ~9 A+ ^
;;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
* ?' b y, C$ V- P5 B+ Y' \
- D) q- y4 Y4 y! c# q2 ~: F( 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! l$ @' N0 ?6 U8 W, K$ d$ M- U
credibility-one
. O! }* \% }% 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
4 W1 J ]# b- Q3 pglobal-proportion: C& }' H3 W5 T
customer
* k) y5 W3 h. dcustomer-no
3 {: u# K, M; N0 O3 Ltrust-ok
. J/ [8 A; d0 _. B- n1 V& Strade-record-one-len;;trade-record-one的长度( N: G) f3 i# V; v$ ?4 w! d
]
! a) \6 Z' F$ n$ v0 |4 o* e# }" N( C. @8 |: v" ^* m6 l
;;setup procedure
2 f4 A0 r+ @' z
6 n+ a% A1 V6 s- D- K: i4 Mto setup
% A/ D8 J- j/ }9 ?8 [+ o: _+ q7 t! V* ~$ q& L6 _) a
ca* C6 |, c! Q9 k7 \6 |, o! h5 Y
4 u: p+ B$ e7 L9 |( @initialize-settings
- g X" w+ x" D
: K x8 ~" ?( u, i5 [crt people [setup-turtles]
( C8 G$ W8 ^+ @- ~5 v! g2 s+ o' n* v0 F' t
reset-timer
| p' Z Y; X- j }
) U3 m( i+ b: W& ~- I. p8 [poll-class* p8 N M; n# U0 u. O$ J
7 }. b2 E1 c3 i* W: x$ Fsetup-plots
6 O0 _1 ~$ A+ N7 o$ D4 d B& ]6 e' n: v: a: `
do-plots
" J: b8 t2 g( Kend5 A! ^2 h# v2 [" ]! }+ f0 k b
( ~( e0 {. M. Y3 w" {4 B! ?to initialize-settings
. y5 A: c1 @8 o1 C- i# X' I) i9 |- T; J7 u# L5 b( ?
set global-reputation-list []
- l% X# |# h a. M0 S% ~
, H, t1 e+ W; O0 k: eset credibility-list n-values people [0.5]
" g z/ F, U0 |( f2 D
! k2 U, W3 U- E2 q" N* ^5 I( z4 yset honest-service 0
4 l, D% J5 i2 D2 ^9 s$ a9 E% ^: s7 b P) N P2 @
set unhonest-service 0
! T! c5 b5 @% ?# B# x) [$ X. I+ q8 l9 @! R; k! R
set oscillation 04 f6 C1 A3 {) `
I' q' |$ l( ^/ v8 S0 D0 fset rand-dynamic 0 { T1 c: ~- }7 ]
end; }7 ]- S# ~8 u' P" ~1 _
4 L' }) X! M8 @1 z
to setup-turtles 1 f5 Z0 m: l" B8 b# h# B
set shape "person"
. C$ d. j0 H$ @4 msetxy random-xcor random-ycor+ m/ F7 h" n% e+ _0 H6 O" V
set trade-record-one []
: G b+ q2 C7 |) M
+ I; `* j1 S' @, b6 k6 tset trade-record-all n-values people [(list (? + 1) 0 0)] 3 t# v0 B( N/ C% N; o
# m4 m! y1 K* Q' n1 Sset trade-record-current []
7 h# Y8 c7 P( J% h" K# rset credibility-receive []3 `( Q0 T% j- ^; ?& ^, |
set local-reputation 0.5
8 E; ]$ T8 H7 s+ x1 uset neighbor-total 0; s3 K5 J; p* r. p
set trade-times-total 0
; g3 N1 g+ V, O6 h1 ~; Uset trade-money-total 0
" ?1 o1 S! } f/ A, z0 Y. qset customer nobody
( L+ V9 R" ^( |' h3 O4 m+ C% C- Hset credibility-all n-values people [creat-credibility]' H2 a) l! R- r) j d! o
set credibility n-values people [-1]5 s0 b9 `7 s. H7 r' c5 {( U! f# p
get-color
( r0 H1 O4 p/ R! T7 q; e! L1 N
/ E+ Y6 ]9 j9 m, g6 v' nend. s) G) Z8 {* h) n* d
) R* g$ r' u" }5 R! l$ y
to-report creat-credibility+ x3 X T6 J6 H2 y
report n-values people [0.5]
# ]6 B( _% M! G3 n) C7 g# Dend
5 h8 [- Z) r- q2 ^ t) B! u1 J4 A/ p7 \$ [* n/ i7 `5 P! D" G# a
to setup-plots$ K4 X% G9 T [/ j: L. Z
$ Q8 P9 Q+ ?2 X# E. D9 e) j$ A. l+ q- oset xmax 30( e! g3 R) U7 A" j% o
0 D; f H; u. M9 L, V+ T
set ymax 1.08 f) P/ T' z8 t; k
6 l+ {0 b1 z6 `2 i
clear-all-plots$ @5 b# H& G. ^) z, i
4 i+ r1 E$ c5 }. e1 L4 ~setup-plot1
1 ?8 w* z7 \2 R8 s2 p) ?1 m; X( d8 l$ U3 i. c1 D6 A
setup-plot23 X( ~# \7 e) E
% {. P7 y+ e& T; f# V
setup-plot3/ Q" q6 x3 p4 q0 D$ ?
end% f( n+ V& v) o: S* y8 S7 G+ u
6 \4 L& D( k/ I/ E0 \6 w5 E
;;run time procedures+ }6 G Q6 g: L# Z
! o3 Y5 I% R9 o+ X; {1 s9 G* eto go! M: R, ^ z7 ^: E k
& l8 X0 t1 r) ]+ Y J' i0 Task turtles [do-business]
; m, v4 K5 E wend4 U; `; t" z! C$ R
/ b' c+ c% m+ C& X
to do-business
; I4 C9 R- O X$ U! { U
9 f, H% q" @5 ?. P7 P! s" v$ A
1 u s& V3 s, v: y zrt random 360
- m+ k/ m x. [3 I# Q2 F C3 O! _3 d- b8 ?. q
fd 1
: i0 h5 g' E3 t- {5 W5 @ i; d9 X$ D& j0 {& n
ifelse(other turtles-here != nobody)[
, V" q/ ]& D. M1 l' R* O% {$ F$ W9 Q( S" z+ o$ G# G/ t
set customer one-of other turtles-here: |+ J, n; H* p2 k& B! _
7 Q( C4 U; j/ @/ B5 v2 J;; set [customer] of customer myself4 X U9 o; g+ Z% n# u
% C/ i+ K7 e% H! J V0 \set [trade-record-one] of self item (([who] of customer) - 1)# W* y l; X H' |1 |) |" z
[trade-record-all]of self
: g; p; j; K8 }9 o" q) ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( v# W; [7 F8 c8 F6 s$ E q$ h+ J
9 S0 }. e: Y! _# J: M* Y- I; \% l' |% iset [trade-record-one] of customer item (([who] of self) - 1)& }1 P$ v6 l) q
[trade-record-all]of customer% b3 s; ]2 Y9 R! p* v/ D5 ]
. t$ b: Y4 w# p7 l( E
set [trade-record-one-len] of self length [trade-record-one] of self- N; x% Y* S. ]
/ n$ ` b5 U5 J2 Y6 t$ O. y& Q
set trade-record-current( list (timer) (random money-upper-limit))
1 H) ^3 O) m1 W5 }9 l8 M& E1 {' a* s0 l" c4 i
ask self [do-trust]
+ \0 c+ j$ L! y1 L T;;先求i对j的信任度
3 t" l. r8 b/ D% |; l+ B W: G0 _; t9 @, r0 h
if ([trust-ok] of self)! z0 K. |1 C% J3 t7 c# W/ o
;;根据i对j的信任度来决定是否与j进行交易[
]7 v) t5 v3 H1 ~. ~- Y* Zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! W) }" {3 U/ ]4 J- W. K) c6 j% d8 ^3 e
[
6 A8 `! J* v/ `1 i' Q
- j1 ^( s6 q9 w( m0 ] W2 ^, udo-trade, L0 g9 I6 n8 ^* W
! ~# C2 a! V) t2 [update-credibility-ijl# j4 N. r& W ]) C/ H0 J
( r! i3 I) g6 ?: b c# ]) m2 Nupdate-credibility-list
/ d' R) Z" K% d9 v/ N2 W/ U$ k. W+ E7 j- x
" D1 o' t& {4 ^) l0 Hupdate-global-reputation-list
% a# z- ?4 {+ [6 B5 ]5 e
* C: C# H& Q2 b, {8 t: v- cpoll-class
; U" a2 z4 @. ^$ J
) h! ~+ T" C5 B7 Z: V9 Qget-color1 A6 F: B# ?$ j
3 L% F6 [ }( ?* E
]]0 M. b1 @4 y0 l3 ]7 E/ g
6 u6 D0 }9 f2 z$ G. v& ^
;;如果所得的信任度满足条件,则进行交易2 B A; u o# q, z
; E9 J) U/ q% c7 T[
# o' d$ t( B' w
% s' u K8 G6 b. i. K4 Brt random 360: U& U% a# s! y
1 E7 u" S5 M: y* P% }# N$ ], Nfd 1
: _; O Y1 [6 t- R: w5 }8 e4 N. _0 J
]* ` j0 [% D* o; `
9 F1 K( w/ y2 Q0 g4 l6 W gend4 L, z7 H/ E+ ?
; N9 R( `, ?9 v* n* m+ n, m
to do-trust 7 r& F+ c1 W* Z4 n( `9 R
set trust-ok False
& t0 Z) Y. k2 M# n
8 j4 Y7 q) F) P/ o7 f4 Y
+ }3 C* ~( r3 rlet max-trade-times 0; r/ B9 a" n6 D& ~( z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! M; k! b2 O7 |" b o3 jlet max-trade-money 0
; x0 i1 o8 \; m" l4 x6 M) k" zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% _" p6 ~4 n z; L* b+ Ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& k7 M3 \! p T( n+ [# r: r3 X: ]7 @
, T1 {% _6 y% E8 g! a. L8 a) a6 ~/ H" E# c& ]: _/ A
get-global-proportion, X% X! @8 m. ~+ F/ ]/ f: O) m6 ?
let trust-value
3 f; p. o/ T; N6 j, a6 `$ a# ]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)
2 e* _2 L9 Q) j" aif(trust-value > trade-trust-value)
$ v: D$ c& N2 I8 i( M[set trust-ok true]8 y# E) I$ i- ?, T- b/ f$ z
end1 j6 B6 ^3 C1 d2 w
2 w0 B; b) y' E( A( @+ v4 Rto get-global-proportion2 y5 X8 E% N/ M& R; `# X6 H" f
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 s6 E: C5 T0 B9 \7 u[set global-proportion 0]
- M+ [9 \& H5 ]- V[let i 0
9 b! U6 @$ _' ylet sum-money 0
5 v& T. R7 {! @. f; V6 ywhile[ i < people]
8 |: g- Q; j% P% ]* z2 U8 n$ @[) Y" g7 M0 L" F4 N& _
if( length (item i, d0 I7 t* z9 ]5 P$ a) n
[trade-record-all] of customer) > 3 )
" b( u( r w1 W- }. P[
( |5 C5 P( [: G' F* ~' v& k% |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# B8 i8 N2 G% m1 X6 B) f/ Q], I3 }" ~5 h6 L
]5 p: S9 b( v6 ]* x! g* @. Z& c% S3 v
let j 04 n% |! C' B$ p* T7 A' [
let note 0
2 ^- D5 Y; T3 S1 Wwhile[ j < people]. X2 g l" }$ D
[8 Y$ u3 Q8 g U
if( length (item i1 g' {3 w7 F$ W+ w4 t2 H6 t$ l+ s7 m
[trade-record-all] of customer) > 3 )
9 q3 |1 s6 z. C. b6 c: V* q _[. s- ?9 O! @! B, r( f" V* ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 n" ^5 E0 a6 n, t9 D: M; \: M9 s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& }( `7 U7 {4 H% s. f7 [, |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! n% _6 y$ |& }]
" G. X; J. ~) ]3 s/ t7 t4 v8 ~ q]
: J5 i+ _" k% g& \6 s$ F: Uset global-proportion note
) C# ]& r) ?* |- i. k]
# G8 U; ^- X0 {' h7 @9 T Rend9 T9 ~2 G7 K7 z. ?
1 J' G$ O1 R+ A0 wto do-trade
3 X S( @6 \3 w+ v. X/ L+ l;;这个过程实际上是给双方作出评价的过程$ E* [6 y; [* |4 I; V; H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( A7 ]" W K0 D$ S% Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: l9 F: A+ q; pset trade-record-current lput(timer) trade-record-current, t% k! P3 j7 A8 B- F! i8 ~, [
;;评价时间
% l4 ~2 u U7 x9 pask myself [
5 a" M" X" ~$ y& O( Y* u' `update-local-reputation/ s4 R' E& U) r- W1 m2 L Q
set trade-record-current lput([local-reputation] of myself) trade-record-current
) G- J; q8 _6 [" B$ `6 @+ M]9 ?4 F8 c& R, L' w K- f
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 c4 @+ m0 p4 _$ Z U" {;;将此次交易的记录加入到trade-record-one中
& ?1 p* J7 C6 W& e6 o# C* G' wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 o; \8 s$ Y4 e/ O
let note (item 2 trade-record-current )+ e4 b- s1 T$ V* Z6 F+ p( n& R
set trade-record-current) n4 f5 d W8 c& x) b
(replace-item 2 trade-record-current (item 3 trade-record-current))# p1 T0 |7 x. g6 Y
set trade-record-current h! V9 p5 }( P* r
(replace-item 3 trade-record-current note)5 r6 y; }: `9 I' G' _" x
: p9 V3 E* G; G4 m
6 ^. E' [0 t* F8 @1 r: n, `ask customer [4 n- J$ K, n9 M6 ?
update-local-reputation
3 w$ |. P; ^' t4 t+ k# Wset trade-record-current: y+ T$ [# c2 {. p% b3 E8 Q( j4 F
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% ]* c6 |, A: l% v: M]9 J3 c+ t7 @- ~/ W4 q" x
0 X: A) E& |) V. j8 E4 K! x0 @
: \/ s% P" `5 j! g& |0 {set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 T4 y, F1 Z& }, ~+ z7 R! ]) {, c; }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& ^+ Y% U, E2 ]! b t& O6 E;;将此次交易的记录加入到customer的trade-record-all中
# h4 A: Z$ c+ q7 v) nend! d& X6 T# I8 d0 ]0 W
9 |5 z V3 J$ q% T! r }6 `to update-local-reputation, {6 @% P) o- j( {! V
set [trade-record-one-len] of myself length [trade-record-one] of myself
% r' c# s8 {5 T# M; ]
$ X6 |/ Q, W+ u2 n8 |1 ^9 U, Q/ ?1 ~7 \2 R6 _2 E
;;if [trade-record-one-len] of myself > 3
6 a. [4 n. ?; i* G2 B, e* g: yupdate-neighbor-total+ F4 J# V, |5 q, ~3 x2 Z+ y H
;;更新邻居节点的数目,在此进行
) [3 ?) ]4 f1 y, l2 \let i 3
" Q3 ~0 x, R' ^/ G4 ^0 dlet sum-time 0
# ~5 O6 d3 }$ X5 X1 _ [3 p/ ewhile[i < [trade-record-one-len] of myself]
3 f6 }0 T6 M% @4 |[# m8 m2 _/ U# X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% q: t n/ K" d3 e
set i
$ L. m- P# |* Y, t: Z( i + 1)1 S# |9 Y! h3 [2 N
]" E- `+ h+ a8 i9 n1 R
let j 3* @$ G- P4 o8 K+ N5 R
let sum-money 0
7 d! C3 a; J0 D2 H3 U. Nwhile[j < [trade-record-one-len] of myself]2 K L$ ?$ z! F5 @
[
! G! u1 O3 N2 w, \: Aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ o! r4 Q$ `, f _
set j& c+ Y' N. E# n3 K: `* K: t' H
( j + 1)4 C; S& a0 F6 X& E5 p0 H
]# v" |: `% d. h0 h3 [5 m* {6 t7 T
let k 3, n- C1 H- C% h! A' _# i6 l
let power 00 U! j5 x$ c8 b4 J7 Q9 u+ a7 N" O
let local 0- _/ R2 W6 Z$ }: p$ ^
while [k <[trade-record-one-len] of myself]
0 |! z6 Y: B% H[/ b/ w+ ]2 C& E- G7 \( F: G6 h
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)
- ?* ] j( U+ Z; U3 B9 L1 M' nset k (k + 1)' b8 j T0 D2 p6 I! Z
]
4 {# D, N( D% O" I7 i+ h& Gset [local-reputation] of myself (local)
4 N: a5 y4 D4 h3 v3 U% ]end
% q/ J5 T. h5 @. l7 x/ C, i/ C5 x3 J6 q0 ~# r. c$ W
to update-neighbor-total
3 ?/ P. ?/ b% [7 ]0 U U
+ j, j7 G2 c' F Z2 ]- Jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 ~0 n S* P2 I' ~' r( O9 ~1 e* J! n
4 c7 Y u2 ^0 H& U( M, } K4 z
+ L6 `% k% q- ~% ^7 Z+ W$ t* g- Iend9 i" F$ T( M8 z6 j
. G" r$ K$ _ Y& x+ m9 c8 D
to update-credibility-ijl . ^9 m! x/ i* S- ^
* G$ e+ _) h0 b, i) D! D;;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 [/ f% k4 L' q! k7 `! J6 i& D0 _let l 0
$ O, f8 `9 M0 _2 Z4 U8 j/ I2 {% O( mwhile[ l < people ]7 |( M# n; g' O H
;;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# j. V% I5 m, B3 h$ h
[" t- \7 U" r. W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)' [4 L% c) M$ z* u. w a5 c1 w
if (trade-record-one-j-l-len > 3)
9 P3 A" Q8 Y B' F- V3 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
4 Z+ c0 x9 r6 n2 b# I: |let i 38 E* \2 R! w# G; X" G
let sum-time 0
, a4 B4 z5 @7 Z4 D8 Q y* Kwhile[i < trade-record-one-len]
' M: l2 D9 X, m+ S" J+ S[* _* L2 M1 s0 m x+ x' \# s; K
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 n$ @5 q3 l. j2 e4 U. c
set i P1 C3 b" S5 L6 i& I* P# c/ q
( i + 1) Z7 s: Q& u6 z: `
]
( c' W; M: x; H' R7 U; llet credibility-i-j-l 03 p+ s/ C" D( T) ~/ Z, [
;;i评价(j对jl的评价)
+ C; u+ v% Z0 M; Vlet j 31 _2 t) N& [+ h+ r4 F" b
let k 43 A6 B! c% x* d7 O/ g6 Q' l$ {
while[j < trade-record-one-len]8 F( \7 l! L$ Y, f0 s$ B! o. @ U
[
- j4 H7 d6 T- j3 z" Uwhile [((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4 D3 h) c- Q5 g8 ]8 r, I f% Z" I
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)
8 k, G9 p' v5 t5 r# G" R( N7 ?set j
3 I% A2 Z+ ~! j6 b7 j! v( j + 1)* S' p' g5 D$ _
]# M8 h& v2 K) _5 i
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 ))
9 _+ {1 a! z% a" h9 h) w- C7 Q6 |- @0 a3 F/ ^+ L
% T% t5 K/ o- u. u D6 R! e) X
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 _- X& t& Z$ k* H# c
;;及时更新i对l的评价质量的评价
: a6 }4 q: w0 Hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ A1 O! R5 o3 Q6 z4 i9 F8 Z9 g, Lset l (l + 1)
5 _* Z2 V' Z' D]
+ w, T; ]5 C5 a) p+ o/ |end$ Y9 y6 L V. H7 \) K8 x6 S& L. S
8 g! q( l$ _3 E+ cto update-credibility-list
- K) y* c7 _. c+ L% ^( Z+ q5 C) Blet i 0
. t" L" V- y' w" owhile[i < people]
* M9 P# N/ p2 b. c' }[* ]. F* n4 t5 L) Z7 e" ^
let j 0
2 G* ^: b. \$ [' ~/ ylet note 0
4 \+ B% o$ |8 \8 }let k 0
2 a. g' i( S7 j; R;;计作出过评价的邻居节点的数目
6 |) b9 P7 _' |1 M# M: twhile[j < people]6 X: L: p# F! a/ Q& [1 f
[
: u$ s2 j3 _& I Wif (item j( [credibility] of turtle (i + 1)) != -1)
0 z6 ?6 T( E8 J1 `. k, ^: M;;判断是否给本turtle的评价质量做出过评价的节点# G3 W- Y/ f2 }/ a6 I
[set note (note + item j ([credibility]of turtle (i + 1)))
. e# b- `' k* ~" v: V;;*(exp (-(people - 2)))/(people - 2))]
$ M: Z8 |* b/ N; B9 i2 Z" O( [4 l# Eset k (k + 1)
' o: b! G) n/ `% N]0 w$ r# C2 m+ j K# W! y
set j (j + 1)
2 x$ }* p& @' w% |/ G]
0 O. n% [/ u' m& B" `3 Z+ Vset note (note *(exp (- (1 / k)))/ k): S/ D; ~5 d8 e! `$ B- p
set credibility-list (replace-item i credibility-list note)" m! F: H- Z/ x
set i (i + 1)
8 t \8 z) ~/ y, U* [! J]
5 M) w x$ X% m3 k% `; R* xend3 O( j X- {: f3 b0 U5 ]( g
2 r6 a' z, I& t7 x
to update-global-reputation-list
% X1 j8 O( n; c+ Y9 llet j 0) R! N3 A# Q- x* |1 K8 j
while[j < people]
+ I; S \7 X! y6 ?[
! C7 J8 J% a2 z% c- L9 d5 elet new 09 |- S, g! O: ?! G
;;暂存新的一个全局声誉
8 b! b9 |4 \. F' G" P. vlet i 0
7 y& ]& K! C/ Hlet sum-money 0 ?0 f! P/ \0 v `
let credibility-money 0
4 ~( Q' l2 E# n. {. X% iwhile [i < people]
% o! J6 ^/ k3 f/ t. V m[9 a" X! @# {- X: _4 [
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' w |( n* P0 `* A( A
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). \6 C- e7 A5 m4 N7 I- H
set i (i + 1)
' x% f. ^. X# T! Q; q]
; o$ {; `2 a& C _) E& ylet k 0
. x/ X1 _( m' l* I, Olet new1 0
+ ? H# R/ w( Lwhile [k < people]
1 o I5 k' u; ^' P5 b; d$ z; K[* D* r, K1 M5 {% \' p: G# o
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)" y" b% v8 I% R& F8 l2 U+ R
set k (k + 1)
4 }# D1 t& F' ~- c]
2 z) g7 G& T2 Mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 z* L8 ~7 U! \+ p% N8 H
set global-reputation-list (replace-item j global-reputation-list new)+ i! s P9 U$ p1 J
set j (j + 1)
9 p; H* {) _* n]( _: Q. m: B. n2 n$ `
end; a( _: ^, ^$ y4 @/ [/ J
+ q$ }4 |: l3 l
8 F8 g P# O& A, Y4 A
+ x% M6 d& X' m" x% P5 P% Cto get-color7 Y/ ~% ]* S0 K5 O( `# D" w, j6 u7 W& F
+ ?9 u) F- A& Rset color blue
7 o. B' K9 B+ [% i0 h$ D& d3 Lend
% S. c& n) W# h5 I" S
, A$ ?, p! i$ Y `' Y1 yto poll-class: ]: S1 B, ?% w) N2 Q, t
end% t5 ?4 P+ C& T; s# ~! E3 ?$ A
/ y* V [- u0 [% @5 ]to setup-plot1' s8 m1 d: ~) q3 y6 I
% z6 U: {/ `1 G" o2 Vset-current-plot "Trends-of-Local-reputation"
; M& Q8 ^! P# H( u" `5 h
9 V! e% H3 _: M3 a4 Y! P) J0 hset-plot-x-range 0 xmax
; f6 S$ s/ T: R! I* S2 R. `6 ~: E. ^$ P! n+ L% c1 p- Z
set-plot-y-range 0.0 ymax
5 x, ^2 `: E2 ]7 \7 z, vend- [5 @' B# M+ J' s% }, j
% T7 [+ F4 _: o3 e2 Gto setup-plot2
, W6 }; E1 L& f" b5 ^# l8 W, H1 M( A% g
set-current-plot "Trends-of-global-reputation"' x& `) k* D+ H- G. N( M
0 b5 z" U! f! W2 I+ K. Nset-plot-x-range 0 xmax
% [9 ], v, e1 t" m: H" A. N7 h q F: i& N* r4 Y4 ~5 a
set-plot-y-range 0.0 ymax
8 f2 y& F% l3 {' t: d4 r3 Vend. x: x' U6 Y0 J
* c6 X/ S" \2 ^: {& \3 \$ M5 l
to setup-plot3 P, h, v2 y+ V$ e0 V
' ]8 ^+ v, U; O& L: U3 J& M( g r
set-current-plot "Trends-of-credibility"' Z5 k7 u8 T* x; C# c2 p9 n" `
0 O8 Y* D/ B5 _ b8 J) v, Z1 ~set-plot-x-range 0 xmax
q. d- o& |) Y# b" z9 E# B' j; H+ \" d
set-plot-y-range 0.0 ymax
* r, z% H {, `8 u+ Z* K8 [- Iend
+ v& L, L7 V4 u9 b% |" \- u. J
3 T( c; P: @0 i7 n: l- k# |0 Hto do-plots7 C! S6 A0 y& L. c- H) s# G
set-current-plot "Trends-of-Local-reputation"; I! l7 T; A3 }6 B8 l; ~1 ^$ b
set-current-plot-pen "Honest service"4 U6 E7 Z* K, G3 Q' p0 V9 ?$ c
end- }% c7 L: a( V3 f, w
\& y) V' | @8 o$ L' k
[ 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
|