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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
1 d) b5 R8 f) g5 X8 ]# y( Uglobals[4 K/ a0 m* @) t& w, b, V( }
xmax4 U" Z9 M& }. d! \7 Q6 @6 b: L5 u8 W1 a
ymax7 x4 y+ ~7 v5 W, w9 Z3 c0 K* M
global-reputation-list
7 y, c) q! c }/ z4 _' @9 T4 ^: b3 r c5 X0 |2 f
;;每一个turtle的全局声誉都存在此LIST中) W! i5 C" [$ r
credibility-list4 Q$ G6 F- S* C- H# ~3 {
;;每一个turtle的评价可信度
2 j* @: f6 K1 {0 x3 d% c9 Chonest-service3 E+ }! b: Y8 \2 q
unhonest-service
! I# r- G. ?! ~6 j3 N" E, \) a$ Noscillation6 ~2 I/ L ^' N" h3 i
rand-dynamic2 j; q& ~$ \- W8 e- ]$ ]6 B
]
/ w3 X( z" ]* H. _' W* y# m' z$ R4 o& E
turtles-own[! C6 L2 a4 }7 w3 Q: a. D0 B( K' |: C
trade-record-all
2 V2 ~2 f2 ]5 [: Z& k;;a list of lists,由trade-record-one组成; F4 q. i# ?4 d5 y* I2 x T! D q" C5 Y
trade-record-one4 A2 s, i* k8 o, p8 F' G: V. a
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' _8 g' F" T3 B: |" g! [ _- N1 X# D- b `; p8 j
;;[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]]
) A* @( e# v. j8 W3 h- N8 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]8 \, G+ x$ G( j4 D4 P5 X; q
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
" E3 t- S5 l7 n, |2 oneighbor-total
5 p6 \' g+ u1 l8 [2 p; ];;记录该turtle的邻居节点的数目$ d; a: z7 o/ v; z6 n* H3 ]8 k
trade-time
! \& T7 {8 H r;;当前发生交易的turtle的交易时间' p* s i9 K3 w; s
appraise-give% U! A: g3 W1 A- p5 p: Q! S% P, {
;;当前发生交易时给出的评价
, U: J0 z8 i( c3 jappraise-receive- F0 J, b2 }, S6 e: g. }
;;当前发生交易时收到的评价0 o( n( s% T* P6 Y6 C
appraise-time$ t1 ]& n, P( g
;;当前发生交易时的评价时间
- M: p2 A O [, a& M6 ^7 F( N" F2 [local-reputation-now;;此次交易后相对于对方turtle的局部声誉) ?' p/ B$ { P& R/ U
trade-times-total
6 V) S; j5 C3 L;;与当前turtle的交易总次数
; _+ W' @' h0 f( I5 e+ ltrade-money-total6 @' T* P( B: a; M3 t) p2 g$ r7 s
;;与当前turtle的交易总金额
+ Y, O& H* }6 ^! F5 W2 F elocal-reputation0 k. M0 t" D/ U
global-reputation
5 w3 a9 z B; ~7 @' ]credibility
t7 N; \ h H;;评价可信度,每次交易后都需要更新2 l' |8 `4 R V1 W2 O. t
credibility-all5 U0 p% P7 x# h* y, e0 r
;;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' z1 M: [) k. w9 `3 A) ?- Q
' l! ]/ A; E8 F. j$ K& o
;;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
2 k& t2 Z6 \9 J- V( `5 |, @3 k9 ]' o3 scredibility-one0 `2 S6 j" Q) i+ N
;;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- ~" u! n. t% S& b6 z# @9 d
global-proportion
. Y; u. f% c- B) \customer$ t p- k5 d1 a6 Q" p
customer-no
: o7 V! y8 L* j0 x; W8 S, [. p& ^) Xtrust-ok
2 M& w! n0 r: f b7 \trade-record-one-len;;trade-record-one的长度
7 J& M( b+ z5 Q% Z; h4 z' ?]
; |0 P) }& y8 w) W4 U7 y4 w) G* [1 l/ F
;;setup procedure
0 @4 W6 R. I) {8 Z" g
! \! \7 d+ j' J f. B9 ^6 uto setup
6 d* O, s" ^7 h) T7 m; ?8 Y+ W* |8 ^
# F$ V. P9 q- x1 U% z# R# R5 Uca
( i9 U1 | p# x# w; n- V! l* [* \+ T' s( E
initialize-settings
) z$ G7 l, O6 |7 `
* v! H$ ]# O8 `+ Z3 F3 g) rcrt people [setup-turtles]
6 a1 f" ^7 ~$ x" L& y3 u x# p$ n* [7 [$ T+ C. |! U
reset-timer! N/ s/ g) f. B% x; X' W( j/ V( C
9 [& _' ?0 z/ Q3 A- n- S8 Npoll-class- `/ H, H( [# c+ M$ @' o, @8 S7 K9 A
* G' `" z& i; h; T$ z+ H- Usetup-plots- P: w; R% l& @# K% G
) O2 g3 C, `& Z2 z+ R3 j
do-plots
* ]# ^$ n( V, q7 rend
' s9 j! q( k& v( V
}9 P) ~+ E! q! K* p; c/ [( l0 ~) kto initialize-settings8 O* i) h3 q$ d( w, A( b
6 ~ _! a$ e/ _% z$ z
set global-reputation-list []4 A0 P& T* O% R2 T" A/ j4 o
4 e8 Z3 N# @( s- _0 G/ ], N: U8 Rset credibility-list n-values people [0.5]
* h/ |0 c/ ?% W3 }9 d1 @6 l1 z; B- D [+ n
set honest-service 0; a' ~/ u9 G* y( V3 n. a2 Y% G
9 }/ i U" p7 Zset unhonest-service 0; [6 M) Y5 S% ^
4 o6 R3 r+ A4 e" ~set oscillation 0
) g8 c! l s8 s/ ^# c
+ [, g- |& B2 d/ f9 S; Bset rand-dynamic 02 B( m3 {5 I1 r$ G* Y
end" x- W+ ] G! I
+ N4 N+ |5 ]- x, W7 `& g; hto setup-turtles
8 y1 C. B; Q5 ~; pset shape "person"7 o# _* j# F' m% `6 ?' ^. F
setxy random-xcor random-ycor& ]6 a8 v- p C o, W- M
set trade-record-one []2 |1 j" `' z0 `8 `# L
$ ~- I2 X1 K. ^3 qset trade-record-all n-values people [(list (? + 1) 0 0)] : k+ ?- O. q1 e$ E9 d2 h! N3 A
: n2 M9 `+ R% Q8 D+ m& D( n( K
set trade-record-current []
/ L5 ^% H% j/ G0 B% B8 A, b6 xset credibility-receive []( r3 ^& e8 v; _- v7 U
set local-reputation 0.5 |: J: U( G0 s- i
set neighbor-total 0
8 J* [; E) U [$ T" g* \3 Iset trade-times-total 0
2 `. H0 r+ q9 j7 F X( s/ N# _* O; Eset trade-money-total 0) J g. k6 Z& C
set customer nobody
2 N# ], o( K( L4 l' tset credibility-all n-values people [creat-credibility]
4 Y m4 r9 q- B; \$ @" v' |" Aset credibility n-values people [-1] I' h F2 G9 |% k: \* F4 j; l: x
get-color' D8 B3 U! Y5 ~: _
* N6 [. I) a- c+ \2 R" o& Q6 Nend3 R# a/ X4 J4 k( |
4 f, g0 r3 f- Q: K5 @2 s" [to-report creat-credibility; Q; ?' \( Y( Y. @; b" O
report n-values people [0.5]
. A4 x: @) R, D1 ^9 p0 L2 d' p* `( qend8 _+ a, n3 o/ r
. M$ t" f; c/ t* |to setup-plots
; @. T0 X5 Q$ J N8 S5 |
9 Q0 b7 A* p' d6 O! Kset xmax 30
1 }' h; V' k' j) x: `. ], a
5 G7 a" q$ m1 C fset ymax 1.0
+ J/ {) d7 v7 d5 C* y& e
/ B+ a6 \$ B3 r; a8 ?3 E* Qclear-all-plots
8 B- ^+ O: u# o( k' X( D+ d8 p9 n U9 U/ G5 |7 \" c( D
setup-plot1
3 R$ b" H6 I/ `; z% K" K2 \8 S# L$ @# S; S. h" ^$ u5 k% f: V
setup-plot2
: w% W t: y: Z5 a" D+ C- x
$ p. J! X; n# t% [3 Ssetup-plot3
# c; X; |' e1 Q! {3 jend5 n: E3 k+ U; Q" i% T* s
, u7 R* |9 o6 j& ~: Z
;;run time procedures
" \ h) A9 {0 Y; U- k( W+ G4 d \/ k4 _& ?) O" @# J$ x8 J* P, N6 I
to go, X" D, s# s* H% y: V3 j2 g( _
# D& s# \, g: @, K6 Z- Bask turtles [do-business]- q3 v, R4 {6 D! V& H
end
+ f; l4 B7 G6 F# u+ K+ c
7 h2 `) F* E2 \/ `& C; Fto do-business
6 {7 i% H5 ]+ Y/ q8 j9 Z% ~* X5 Y0 P
" T/ W) W( e7 y0 L( |/ o
rt random 360
: f: W) f- n$ o, T# {7 O! E$ _
& T& H8 t# y Z5 [4 Zfd 1" J$ @; }) j1 V8 E0 @+ }8 ^& d
3 u9 c9 c5 M3 }2 {' ]6 I
ifelse(other turtles-here != nobody)[% K9 i/ l, j" @; ^
" {( \$ B6 l! L2 d' a) S4 ]
set customer one-of other turtles-here4 k* f: A# L: t# G N" g7 b
: X5 L( @7 ]* }0 a. P- s
;; set [customer] of customer myself9 w# ]$ {9 `9 J* |8 \& J0 N- `
) h$ @* {9 n, |5 ~2 ~3 xset [trade-record-one] of self item (([who] of customer) - 1)
7 g9 K* u8 \( C* j+ T[trade-record-all]of self) y# K9 s1 \. x# I9 ]
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: y' a% [* d6 {/ ?# j0 N2 V5 V% q& T K% ^1 s) K* s
set [trade-record-one] of customer item (([who] of self) - 1)
0 Z) Z7 W% R7 x, s2 [; S8 B4 Q[trade-record-all]of customer
( S1 _4 h1 Z0 k% l1 ?7 h9 G& D; d0 m/ s* q( r, f: u6 _
set [trade-record-one-len] of self length [trade-record-one] of self, S3 s! ^1 F* p+ g; }8 N! N6 h" L
+ z1 U I* l) wset trade-record-current( list (timer) (random money-upper-limit))$ `) H. [6 h, X2 R x' c2 i3 i3 _
# i, W9 _+ F0 @- ?* t; T8 Dask self [do-trust]
' r5 O G0 s- I5 p& G;;先求i对j的信任度) Z5 O8 D. `" J" K) O1 l
% B% Z" A% z, n
if ([trust-ok] of self)
: @+ g" c6 p3 N* l+ J" V;;根据i对j的信任度来决定是否与j进行交易[
* O h/ O; | a" ?# _3 A y# jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" U* \; x& Y6 i1 V7 w
) ?! j+ [0 G8 T) x[- Y# j! Q' X9 n. c( F$ ]
& k5 _6 A* ?6 R' _
do-trade
: |0 f2 q, E% H1 [* k- U: n' E( h. \) \
update-credibility-ijl6 ]7 L$ [$ d. Q0 Z4 N
6 x$ @# Y3 T: ?- J& Supdate-credibility-list
7 B0 V9 t D }$ O# s* F) b! p2 {' k& f/ G) w$ z
/ o. `$ {" c8 U& J# o4 T1 Bupdate-global-reputation-list
0 D: ~5 F1 U# M0 T! a7 `5 v }4 f# [" D2 x. r8 C( w
poll-class
% Z: o" T. E; M$ j0 ? b
- B [# M( I7 R! yget-color
' H7 k. J& v7 A" M q3 E6 v% L j. c: k' H" O, a/ N0 G3 [' J+ m
]]/ [% c( v6 S& h c! N+ h
) C% ?; s, u) x
;;如果所得的信任度满足条件,则进行交易$ Q5 Y( y0 Z7 d4 i# {
& @0 h* _' H' }. W+ ^
[
9 e( x( W) @) \. ~. g7 L* u
- w' x, c( M/ t: }. xrt random 360! u7 d9 G4 X! z; i( k* v
( k% r9 X) k# }1 P3 tfd 1, X+ n9 F7 ?2 V7 }0 }* [) [
& T+ E4 S; t n3 e
]! R4 Z9 q! P' g1 ~1 j2 M
6 b* j% f6 z& e/ s4 h+ \
end
" m: C' E. p+ z* r
9 U" h0 Q' t, e4 jto do-trust H; X9 ]' o$ z/ B- V: W3 a
set trust-ok False! k" m2 g* `- S- e
2 Z. l3 a5 K1 Y% O/ k/ [% `3 C
/ \- _3 A8 V3 t& b' k( T: H# Rlet max-trade-times 0
* i* c+ K7 I6 }; B8 _! T6 J! L0 wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 V/ e( S, v& d2 {! { m9 l
let max-trade-money 05 i" a$ K' F2 K" x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 D1 A2 ~. T9 z) O3 R6 l! x
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) y) e' y3 v; K9 h2 O* z. C
" q& U/ y& p/ N2 N# g# E) j6 ]( a/ l/ b4 b
get-global-proportion
. ~' A/ R( X# v/ x+ t2 C8 L9 blet trust-value% B" Q' V7 T* p5 H) y
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 O' I# D. j3 d1 F
if(trust-value > trade-trust-value)- z+ c' e% S. b- @6 N9 y
[set trust-ok true]
4 `4 y9 y Q* yend7 K3 J; S7 y/ j( j% C1 m. g/ Q% b' s$ |- [! }
8 u2 r- D: {& L! y8 dto get-global-proportion" X6 x+ q: _$ q- x
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) u; x2 [( w) _" y( ?* O[set global-proportion 0]
8 Z! I9 c: O+ G) R. D[let i 0( n" t! s H2 M% J2 _2 I: U$ [
let sum-money 06 Y# p$ J4 v. Y" K; ]+ x* d1 [; m
while[ i < people]1 W; c0 }6 g# Y: A, q
[
3 Q; r' Q( p& \* U$ N Tif( length (item i3 o& k0 c& `4 v# C5 j
[trade-record-all] of customer) > 3 )
% Y4 \. G/ ]+ Y+ i+ H3 Z. E+ z[
2 w: a, M; r% w; jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# G- S- w& y+ J6 \8 x, i]
; E1 c8 P. j1 A& o& @% Y; b5 n]$ u2 F" V" H Y, b) O
let j 0
1 j9 Z8 I' k& L8 D4 Slet note 0# F4 w" z0 Q- \% _
while[ j < people]
5 k8 L! ~9 Y; r% W. s$ H[! f' m* u2 S* C; C6 w5 p4 v
if( length (item i/ B: l' ]3 R# Y) h/ v) H1 c
[trade-record-all] of customer) > 3 )
* I% P& \, q+ _% O5 C) G[
7 k9 c1 W+ g% h5 p$ w9 yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 [+ [; f5 P8 f8 P& C[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ m! |* f$ @9 J; G8 _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# z7 e2 z- w" D# a; {1 L]
9 g5 i" U6 \2 w. t) p]6 E. z4 k1 ^7 B) P
set global-proportion note8 V' P2 c9 ~) u
]
8 _& X% E2 _0 I& _& ~# p, P2 w5 \end
, h% d9 {: ~7 K0 E* ] V- v, v5 M% D* K* l2 p" u& H1 ^
to do-trade4 `9 t6 @8 I! w+ ^
;;这个过程实际上是给双方作出评价的过程
# a0 u8 a: W {. R& ^% O6 \* kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 a$ I' l1 l3 ?1 E7 B( tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) V# b! V7 M0 p1 S9 g6 {
set trade-record-current lput(timer) trade-record-current$ A- A" T: M, w' [
;;评价时间6 x5 O+ f$ ?4 _5 x/ j
ask myself [
9 O9 m. P1 \2 zupdate-local-reputation4 v) E. z5 q Y2 b- ~# y
set trade-record-current lput([local-reputation] of myself) trade-record-current& s& n; W, K; s% r# K6 u
]
1 V% w# \: b t% m$ Y6 ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, C6 p! }/ |3 F" ?1 h; v;;将此次交易的记录加入到trade-record-one中: y1 v8 W& U j# T. {, I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 R# q0 [' h& jlet note (item 2 trade-record-current ), r! {# K4 L6 K0 p7 W
set trade-record-current" A$ a: S; s& G7 s: z
(replace-item 2 trade-record-current (item 3 trade-record-current))+ x( X m! b m) L
set trade-record-current
6 q8 F9 x- S; t& _: W3 K: [(replace-item 3 trade-record-current note)) H, v* X: g- V2 E+ a; j
V Y' B3 [* \9 h' v1 H( D+ p4 N1 y) z* q
ask customer [; J1 A! `! d$ e1 Z3 j% [
update-local-reputation
2 Q5 e2 H& |' mset trade-record-current: I3 ~ ]/ Z6 k, |. {0 K
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 j8 d! U6 J2 A. h
]
1 f9 I) r( U0 t+ M! J
: k6 v0 l' z7 x3 ]9 c
, b: o/ G. J% H" B$ S# Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! s1 Q |: _0 {7 v; |6 N
0 f& C5 l. c* g( Q6 i1 Nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% w1 u e' a$ |, g
;;将此次交易的记录加入到customer的trade-record-all中
/ s) e- l& _1 m8 Y8 }: x5 ^end2 ]# i! Z/ `& p5 ^1 ]
' J3 z( y1 A T c8 Fto update-local-reputation( [: O7 N9 w/ s2 Y- R, r
set [trade-record-one-len] of myself length [trade-record-one] of myself$ Z8 B) m. k" R e' u, E+ f
4 w6 l$ X9 R5 ~1 @6 z1 g- H' k N1 @. B+ c
;;if [trade-record-one-len] of myself > 3
) U, p) l; a/ J5 c9 Pupdate-neighbor-total
/ j/ ^2 _6 W7 I5 N% t;;更新邻居节点的数目,在此进行9 @, P# t- b( Q: H$ N# g* ?; k
let i 36 t/ ~+ `3 z4 z/ C
let sum-time 03 a. g$ O8 t0 y: e, h+ o; a9 F
while[i < [trade-record-one-len] of myself]8 G% z& T l4 b7 w5 e5 O7 J
[
& p6 h# S) S5 E7 i% X; Oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' t, J# V# k! G0 }- ~, i3 ^/ D
set i* ]* j( R7 U" k4 e# ]4 S+ M
( i + 1)9 O, p7 r2 U( W G: m
]
% |, v0 Y R6 R9 s$ X- E1 _let j 34 ]) J) G% i7 [( \, ?
let sum-money 0
9 F, P3 J4 g! P2 z" k: z: y1 Pwhile[j < [trade-record-one-len] of myself]1 v9 T! _9 R4 _& j1 V" }$ V( t
[
, b% u/ y1 D, ^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)
0 W8 I6 L+ O# ~3 Uset j0 A& k) S6 p6 o3 y) f
( j + 1)
/ n7 ]. `" p) B4 E) T]
8 s* S* R3 z, c* K: b. p K# D; g2 Glet k 3
! Q/ m) U2 j5 a+ @: Alet power 0" j, a& D; ~0 \4 ], b+ W$ [
let local 0
5 ~2 V# r( k9 l- ?while [k <[trade-record-one-len] of myself]; r9 V: r- e `: A3 c# l) Y5 {5 g
[
: e& w& w8 u9 ?- k. r, @5 Uset 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) % A- t* n( w5 P4 b, z' Z
set k (k + 1)
. T& j' F0 B$ B" C]
0 e$ F: B) h, l8 \set [local-reputation] of myself (local)) O6 _( Y3 R: @* r
end
" N: H, V. ]) y; G- _4 Z0 M8 y6 v; F- s5 K9 W; q+ g& f
to update-neighbor-total/ K) N; h6 i. W4 z
+ [. u5 S7 S+ Z+ l+ l2 ~if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" C* e( w5 n5 `' i9 \' C6 R+ O' B1 j8 A: {' C
+ N) |8 A5 B; _! [, S. z3 L
end' G0 H4 m# _0 K- r) B
6 h+ a0 ] V, _1 D
to update-credibility-ijl & w, U+ u; t) k9 h" A
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;;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。
* G6 T) M5 l* V! Dlet l 0
; X/ X1 X. V0 H: k% Ywhile[ l < people ]
1 ^/ M# Y$ R. U/ ]/ K;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
! z9 E- o* g1 _0 N M Cif (trade-record-one-j-l-len > 3)
5 |. B1 H0 q/ t j+ N7 ^* 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-one7 n9 ^. K8 w/ v- H4 E- f1 h
let i 3
* n5 }% h. f+ rlet sum-time 0
( Z4 K7 A6 A- T6 Lwhile[i < trade-record-one-len]
; [& _+ f2 H \ t- [2 k[
+ _3 V; A2 ]8 f6 {$ e2 ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" V) e G: U wset i
& ~" P3 U, p8 I2 F( i + 1)
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let credibility-i-j-l 0" N0 ]3 J& e7 n
;;i评价(j对jl的评价)5 Z0 R# K+ e+ \* h! P' O
let j 37 `8 Z2 p# ?, P9 R
let k 4
. R1 w* j6 n! J3 `2 q7 Z! Pwhile[j < trade-record-one-len]# k! T; I/ @9 O6 ]% b( [* z
[
# h. w4 F( x c3 U: V# Rwhile [((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6 J; K5 `9 V4 C
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)
, x5 |: }2 _) L3 f+ W) O) lset j
6 {, W3 [$ E5 T, g( j + 1)+ {0 m& y* {' Y! t5 q( W8 t0 l
]
1 G' Y- B8 y, n/ c* d" M7 t# Eset [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 )). g0 k) |- d/ L, e' g1 o1 o
/ [) Z; Z) k8 W0 _
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 u3 j- ]9 X1 g0 w- u;;及时更新i对l的评价质量的评价. h! `2 G7 ~& A$ W2 O
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 r7 L k7 c: H: r
set l (l + 1)
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end/ Q4 U( i$ w' Q. t: H
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to update-credibility-list
; ~7 p0 t2 x0 H0 `: slet i 0
& y7 T8 U4 h- L3 n2 z8 Awhile[i < people]' \* z, Z F/ }% P5 Z/ G9 j
[
2 ~' l' d, V2 ~8 Mlet j 0$ b4 m) m* E, A. q5 ^
let note 0
5 c5 p7 k8 {, Z! v( F$ X8 alet k 0
9 H9 d7 h; W, w! h5 t4 o;;计作出过评价的邻居节点的数目; k: q, o* o7 I$ n0 s+ e
while[j < people]% g3 o8 ^, C, {3 M6 V- T) z
[
+ O1 A( [- U: x; hif (item j( [credibility] of turtle (i + 1)) != -1); U) f6 G# Z& @5 `
;;判断是否给本turtle的评价质量做出过评价的节点' J: X3 p5 ~3 W7 E6 g+ P3 Y% _# B5 o
[set note (note + item j ([credibility]of turtle (i + 1)))
" l% H! F9 S6 `# [" ?$ I;;*(exp (-(people - 2)))/(people - 2))]
: U5 A. |( M. Q- sset k (k + 1)
, A1 `/ ~) g9 _3 c8 u]! o- j( o, x; K* N+ P0 _
set j (j + 1)' ]& W1 y% ^! |5 m, h- z
]$ K, K/ J: D7 d' F% X
set note (note *(exp (- (1 / k)))/ k)
/ U( l8 w6 T: L: w7 jset credibility-list (replace-item i credibility-list note)' s W7 C J: Z$ q: {5 |2 n
set i (i + 1)6 F7 ~/ C9 L+ h# I9 S
]
3 ] R1 j6 I. I9 f2 ]end% c! p7 u) `1 |# {4 F
4 r3 i5 J& Q i# \# b w9 |
to update-global-reputation-list
, o+ _3 w# A" Y+ O5 Wlet j 01 F! M+ H5 O% O' {' u% x
while[j < people]( o" Q+ v+ M/ r
[
, u. L. [: b0 G( Alet new 02 r" |, ~7 n+ P0 J% K6 Q- ^$ G
;;暂存新的一个全局声誉
' o# i d/ `+ x3 x0 Y# Olet i 0: {3 c; f) ?; A9 d. i/ E9 z6 ~7 [. O* h
let sum-money 0# b# T I: t5 P$ l- U; w' p$ h- H
let credibility-money 06 _( N2 y. {7 m3 l
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ c, |& @* l% M( n
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) K9 \5 Q8 @" n# X; r3 v- @, U. D# M
set i (i + 1)7 N# S( w: o" C2 C- F8 S0 U- C' |
]
6 x9 N! q0 t" w; S3 dlet k 0
7 N4 N3 y5 B6 I* T% M- w* Xlet new1 0, z) ?+ B7 v9 @; e4 f/ s; H4 E
while [k < people]
/ N5 S0 M+ P' M: l* p: h[
& R, Y1 w+ F0 Y4 S& o; r6 uset 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)
; o3 u, w+ G5 ^set k (k + 1)
$ q/ x5 u0 f$ l( u! a]
2 m ^9 w; n$ C7 h1 S3 ?% z. \set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 Y6 M+ @7 Y! }' v6 X
set global-reputation-list (replace-item j global-reputation-list new)( x3 F% z! y7 p8 l
set j (j + 1)
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end
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`! G4 n4 E( P- r5 i' O
+ E" Q! }9 O, D4 e/ W* G K. nto get-color$ ]! S d/ ~- r0 j/ }& n
+ D+ d; x) k" c, \/ z! Xset color blue
+ K0 g0 |! w! M' q d! W8 Xend1 r4 P: u7 ?) K1 _
, ~9 I H6 ]1 i: A; M, c! C; M0 A0 ]to poll-class
# p/ Y$ N4 l; O1 G* u7 S" K' j* Hend
" E) s& `+ M1 r0 a# K
8 {) m8 {3 b$ y- kto setup-plot14 D' K( A5 ~/ W, V: c& H0 p
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax* X3 @0 I2 V: S ?# j
# S- @5 C; D- p# ~set-plot-y-range 0.0 ymax8 v! k2 Z) K" o R" _4 N( p5 ^
end. Y1 H/ m- ^& h1 Q N' t
. Z1 s1 @) U& Oto setup-plot2, D& Q) ?6 o; _$ V4 y
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set-current-plot "Trends-of-global-reputation"' U- X3 n' K( \+ Q8 _( Z% P; K
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set-plot-x-range 0 xmax
" B$ Q+ A9 a: \' u& Z" j! ]
' Z9 ^- i6 Q/ tset-plot-y-range 0.0 ymax
, ], a& y2 C0 l3 }end
) C: ?1 d% B$ p+ m4 i5 q0 I& l4 `+ D _2 v. _3 e
to setup-plot3) e0 } x# w t. O; N8 a1 W
3 Y5 \* A- F0 s% aset-current-plot "Trends-of-credibility"
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* N) o8 A, f& E i: {2 xset-plot-x-range 0 xmax
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( r: h/ f; J: b$ B9 pset-plot-y-range 0.0 ymax7 P' D# G: U9 V$ L; N6 e Z: L0 A
end
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to do-plots
. z# J5 j4 Q/ |+ R* cset-current-plot "Trends-of-Local-reputation"5 S, K# T" [% t% @1 E0 A& `
set-current-plot-pen "Honest service": j5 h6 X7 j# ~# n/ x9 N
end
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# }% ?0 B; B; ~1 u) l[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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