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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
7 E x4 A" i. [. I( f0 [$ m. x4 \globals[
$ j! |2 E! |: u6 Y& Kxmax8 Q+ }- j5 N7 j2 R
ymax( h: T9 o* O4 F, r0 |2 u
global-reputation-list
0 }% k/ C1 W6 G, j0 n
Z) S* | V3 @, h5 j;;每一个turtle的全局声誉都存在此LIST中
+ W2 o% u' w! c+ r! V' w) Q: O, Ecredibility-list g3 z! k. k" ^
;;每一个turtle的评价可信度9 B# L8 |5 M5 j" t! i5 P
honest-service5 _: z! c2 o: z0 S
unhonest-service. p4 E$ x! |4 f
oscillation$ f$ [* j/ A1 b) _& W) Y3 \
rand-dynamic
" ?1 {6 ~: g, v+ W" q) K" x$ Y]. \' l/ f0 C3 a) X7 `& u
" y2 r; `6 h# D+ w0 l( y9 t3 N
turtles-own[' }4 X W8 y0 G# a* C/ j! I# I
trade-record-all" O' H1 I2 X4 [% }2 o+ c. l
;;a list of lists,由trade-record-one组成
8 E% N8 l8 K4 }$ htrade-record-one
8 r5 e) D- m' a$ m6 d1 D;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 k7 Y, A7 p% ]
( E/ r' [8 A; C" z# s5 r;;[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]]
2 u2 X! F; m ^1 D1 Y; btrade-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]3 Y9 m! I1 H. z2 @) F% n
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
9 s$ l) X! ]( ~, P3 Q) h' m+ [neighbor-total
; u' c" _: g- E! w1 l;;记录该turtle的邻居节点的数目( R% _& z% b$ p0 @6 _. o
trade-time
" L% t% Y% w8 _+ k8 S, D" @ V;;当前发生交易的turtle的交易时间) z" I& v2 x' j1 x, c
appraise-give
& h' b6 X6 W A: @$ I;;当前发生交易时给出的评价
- @' n2 f* L- Q& ?& g# N4 }appraise-receive
$ W* z, g- o# @+ O; _;;当前发生交易时收到的评价1 Y: Y: e9 \' N/ j
appraise-time0 G [3 g) j! u! B/ e
;;当前发生交易时的评价时间, ?: u7 ?& K; g8 z$ ]1 W, K; @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 P( S! t1 F$ qtrade-times-total! t2 `( E+ t$ C) \
;;与当前turtle的交易总次数
. [7 Y9 V2 z+ c* l! ^trade-money-total
9 _( _' u3 A9 n d+ E- k;;与当前turtle的交易总金额
& a) x; @5 ~' t& \& ^local-reputation
) t: M# q- p! [ d. hglobal-reputation$ }+ d4 h# I2 a3 }7 ?
credibility- _/ {/ x6 K5 i! e. t, r- O
;;评价可信度,每次交易后都需要更新0 M3 ^; u! V" D, E8 G( l) E
credibility-all
. T2 t2 k4 Y* h D ~- };;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
" a* {, M7 K5 j$ T7 M4 S' P& a1 k" ^
;;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
4 ~* l1 N& f3 t% s5 n* w5 Bcredibility-one
) B8 ?$ w3 D# l3 M8 b0 q) x# ~;;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# \/ ~( u8 f. [! _$ Q- H; g8 x4 f
global-proportion
+ ?. A# }" Q4 o) Scustomer6 j i: D" p. H0 h: q3 |
customer-no1 B {" f$ | H
trust-ok
q5 G5 O9 ]* | Otrade-record-one-len;;trade-record-one的长度
7 P% s& O$ h$ U]: F3 B- ?" N8 P2 p- T0 t
4 m7 a0 [6 V+ @;;setup procedure9 ^, Z% ^; \+ V+ }
3 z+ {8 t- k# I4 S; f9 [, m9 Y
to setup, z& r8 g. z2 ^8 J8 B7 V/ ]1 A
( r! R0 V+ J7 @8 z' {& \ca
; i2 _6 l1 }( d [2 b4 Z d9 `) W
- {; X) ~1 ?: b1 V- `initialize-settings! e: g; \& \( [( S5 \
9 |, T% W9 r8 x9 l! \crt people [setup-turtles]& z: F6 e, r% V8 D( k9 A; w
- m# D/ K! x' h9 ~7 U. lreset-timer0 u8 y, v" l3 B# D; M9 K: Y$ E6 v
8 \6 \, H6 `$ T7 Z( ]' Xpoll-class
' v2 ~6 i0 Y; r V3 ]& P8 R3 u( ?- U3 ~
setup-plots" _$ N) t; d6 `- X$ o% Q# _
# n t2 A* v* S! h2 y* f. C, j3 kdo-plots
2 O e- D4 y- q1 d2 kend3 ]$ ?- K/ x! B' f/ ]/ `# K4 Q
% l8 b# O! j/ n4 c
to initialize-settings
2 h& W l9 ~$ f& U% V; [5 y
( Y! @# L4 P! F6 B* Vset global-reputation-list []
# W$ N0 o$ W Z2 d: [+ D3 U6 `, h: R- R4 h
set credibility-list n-values people [0.5]$ \% c2 r0 I9 v; m7 q# `; U6 i( h
6 m7 L2 P8 k* @' s1 z
set honest-service 08 m6 W/ F' M! O. b1 _; j
" E8 @! D0 P' k" W1 R) b- ~( tset unhonest-service 0
! y$ g; G% I9 n0 d7 }1 ^ s/ N* K8 T
set oscillation 0
4 s! \1 _. i+ `3 |/ b/ M6 f8 `$ O1 r b
set rand-dynamic 07 R5 M# a* N E8 f
end
/ e7 x5 b5 p; @; l0 w" @
; X, Y6 x- r% wto setup-turtles n8 v) P& L# g0 h
set shape "person"
' k8 m0 {" L8 k3 ~1 Csetxy random-xcor random-ycor( {% c+ {2 m+ ` K& p
set trade-record-one []" k3 K3 Z( U o$ K
3 ?7 P# ^* V, G6 s/ h4 B6 j0 bset trade-record-all n-values people [(list (? + 1) 0 0)] ( C6 W; d# x$ i0 u
" D: s8 @9 {# W. ]! I
set trade-record-current []
# B: U0 u4 m8 i" T6 lset credibility-receive []
6 e7 t2 z m6 r8 `set local-reputation 0.5
4 L; Z9 F, c& r; {: {9 Gset neighbor-total 0
3 O% N. x- h: v! }" F! j, Xset trade-times-total 0+ I2 r/ @" r5 L; y0 Y
set trade-money-total 0
# ]" l7 b" s" Zset customer nobody# ?# _2 a. B" @7 @6 i! M* ?
set credibility-all n-values people [creat-credibility]
! L. C* n" `' w2 Zset credibility n-values people [-1]
) J# T: r4 z( g8 _3 \get-color
9 |5 J Z0 j; p/ n4 K' ]6 I8 k1 T9 P
end% A5 M. m! u' _+ _* J3 g
! T8 s# D$ b1 ^2 }) T- i: l9 O$ Cto-report creat-credibility! A# I+ b- m4 L: d
report n-values people [0.5]
8 d1 ~5 \# P/ V) Gend) s, ]& v; _# H3 l" G
2 e9 c8 c/ u7 {: t+ `
to setup-plots
5 U3 ^1 U- C5 i2 Y$ R2 W# o6 m: w5 m
! M1 I3 n9 O% L! z6 vset xmax 30
' `$ J. i( X! ~+ V# r4 j
& E3 ^9 y- ?2 x+ xset ymax 1.0
# I, o0 v( D! y% x% k8 e) j3 i5 G! f9 V
clear-all-plots
% }1 S5 R4 b" b* c' ?, P- t7 G B5 u/ H1 R
setup-plot1/ q* H$ j+ k0 ` [( z, _- U. S/ }+ {, v
/ E' c1 D% i5 i+ F2 nsetup-plot2
/ j: o+ D( L, K$ ~( s4 b6 k
8 ? ^. `5 h3 U z3 }+ Hsetup-plot3# V* R; f) x+ |( i9 s
end, M$ }) X, c4 d4 m+ S1 W
' ~( n1 v0 b. S; k* i) i' T;;run time procedures; Q0 k4 D. ~! d5 Y
0 s5 R2 b x6 L) S: B* l& Bto go
: p' M1 N% O3 k6 ?2 [
, J6 K+ _* t" p% `& zask turtles [do-business]2 J/ v; e5 K! G* q! O. s
end+ V0 v2 n" t# p. i7 T/ j9 W+ S# m; q
' c4 B5 V9 v/ x7 S$ [9 C+ ~1 q4 H6 e1 lto do-business
* \ O3 r$ l+ x! W8 d y1 a# j) X
9 N% t1 g) g: D' R! O6 I. `# d& f9 C5 E4 Z- y5 D5 j W0 @
rt random 360
2 Q0 v8 _% O Z3 A$ B Q6 n m4 M9 g* Z
fd 1' w8 T X% M8 ]9 e# y2 d4 }
0 K: i) Q) U3 ?# A: {8 [& M6 }ifelse(other turtles-here != nobody)[3 r1 N4 a0 C1 v9 U8 ]6 U
' \% K, X# N! Tset customer one-of other turtles-here, I8 c" P' V+ }+ f) A
8 z' a) N3 M* ^; c1 P
;; set [customer] of customer myself0 n. y1 o& a5 f$ C5 ? H
4 f& y) ?$ j' S
set [trade-record-one] of self item (([who] of customer) - 1)9 I; M% G1 w }; O8 z( ?# @# S
[trade-record-all]of self
f7 ]+ y* G x: l0 n7 \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 v6 z: G8 a ]1 O1 F0 q. _6 Z4 X$ e0 g L( Z: k" g) ~' Z- A
set [trade-record-one] of customer item (([who] of self) - 1)& P8 M8 w# Y" G" N
[trade-record-all]of customer# V2 i8 N: s, ^( X2 e
/ {0 `) i/ l. w6 E+ Zset [trade-record-one-len] of self length [trade-record-one] of self
& i( z/ e) K+ `/ D; w& P2 y& \, u% b) O- N9 p8 F& O( ~$ {
set trade-record-current( list (timer) (random money-upper-limit))
R" n+ H" d$ R6 c, G% C0 J5 r L4 } O, O
ask self [do-trust]7 F* l% e. r. c4 \' o1 M% I
;;先求i对j的信任度2 p3 K9 z) a. C
3 ]" ^: [- r: h. m7 b8 k3 _if ([trust-ok] of self). c/ z; x& n8 ]* k. v# Q: R
;;根据i对j的信任度来决定是否与j进行交易[ L+ \, Z- x% [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( U' }& P9 ^1 |- N
3 E1 a5 Q$ m+ K+ ]7 C[% G' {" b8 y0 h5 f7 P& A
( p9 J# W; y( R3 gdo-trade
& d" G! ^$ _1 S2 x) n" T) {
$ Y, N3 ]: n3 S9 X, ?update-credibility-ijl9 F o# Y p# q' b. E% ]) h
! R, p" F" @" t2 c. R& k' \- V# nupdate-credibility-list# e+ `. j9 O p8 r* C: @: Y4 C- e
# \' k! y" R" K* V0 |& Z$ ?
& ^0 C. p/ \8 _7 I) v3 E6 xupdate-global-reputation-list
& A# `3 N& F1 y5 {0 g
0 K, S& F5 W9 g/ h' Qpoll-class7 ~9 \( G9 Z" r6 o8 h# R
9 n, b- m: p' i3 C! K5 D2 w5 {- a
get-color8 t6 ~) A1 q; e0 `4 e8 |( m
. f6 v N7 z3 a% {1 m]]
, d) N7 o$ h& J, k& W
7 _0 x/ z) G s) ^) y# p* S$ Z;;如果所得的信任度满足条件,则进行交易
6 j, m& k; ]' F" C5 \; T' |5 U% @/ W$ X
[% l2 d P$ P8 _
+ S6 x" M. P* l1 `3 ert random 3605 R5 P, `, i+ u
; _& i' E: L0 [# W- f3 p9 ^3 \
fd 14 _1 e7 Q, D9 ~' X; W
$ \( V# K9 T/ ~]
. ?; {3 u1 K# P+ `
( a, D F3 @$ Y5 R- T# U4 I ^end
* x5 m; i m" h- F1 J2 ]
7 K0 U; a8 [ ato do-trust 3 f# @/ ]+ ? t
set trust-ok False
3 }/ F- K' |9 b7 T5 d! Z" | ?! w, [) b P
2 a# k2 d1 b' X1 S. vlet max-trade-times 03 }' G" k ^7 B2 T3 d
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) i, N/ z( W) n6 ]% r& Plet max-trade-money 0( V. z' s; w: Z+ [0 s" j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 m* E& L/ z. l2 P
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 H @# P+ {. \) d/ R9 T" |: Z
: p8 m' K `* o9 Y+ y+ y; O4 e: b* m. |: j2 i* u# L1 C! O/ J
get-global-proportion
! X- Z" v% [# W; G- g- w0 Clet trust-value3 R# L6 ?& h, e8 J
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)
) J) W, p3 P$ z4 w- Rif(trust-value > trade-trust-value)6 B* P i8 q. M& j h, ~( P3 Z. W
[set trust-ok true]
. h* a# e, i; |2 eend
4 W" n# ^5 Q) Y3 {6 }7 Z1 v T7 a+ s; S
to get-global-proportion
$ |, J) L5 M' t; ~: x4 b! m' r. |ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) b" [$ B" e7 x5 t+ X[set global-proportion 0]+ O# M9 m; t% V0 ]4 ~+ ?3 C* F
[let i 0
- d3 F( h4 s- ^1 Elet sum-money 0
1 O4 k9 m5 h, l$ d6 } R: q' \while[ i < people]' ]1 H1 o. H, H |) Y: {- D5 g
[
# @) o/ I- Y# K7 Q% n6 G& Fif( length (item i
" P# E# J" a) \# }$ V) n[trade-record-all] of customer) > 3 )6 e F T# u0 q7 {- }/ b$ e1 y
[
2 h7 B9 _+ }0 A; gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 f7 h# R7 A0 b
]6 Q3 ]! s, K5 o: X
]2 G: m# S. u7 B2 D+ e& w
let j 00 C( i; l& [8 e g" i7 _' m
let note 0
9 ]6 D$ m8 B' l8 ~1 L' f& ?( Wwhile[ j < people]
9 s! ^+ v' r8 c" O* r& }[* C; Q3 o0 l' X. ^
if( length (item i
# } v' b3 h% W; r[trade-record-all] of customer) > 3 ), Q1 C5 v% \$ Q0 ?- q: _) s
[
+ D+ ]% N" y7 ]1 K! Kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 x; T, R8 y& d& w0 K F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: b( [& A# Z5 F0 v8 \% _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. |6 O& s& K/ B0 J! j
]
- c4 ~6 H# ^+ N$ a! y) V( l]* ?( `; W3 R: p. x
set global-proportion note5 t/ |. f0 P( z: r
]
' A- d" z0 S* w: B$ Cend
5 W E4 I! R/ e* N1 c8 @& y2 N* p% u: ^2 V+ S, K
to do-trade
4 Q7 X" Y8 I" `* W;;这个过程实际上是给双方作出评价的过程
6 i2 H$ A" D& q. Z2 g0 nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; @3 F5 \: O- D Q* x3 [- O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
x4 f+ Y& H# [* Nset trade-record-current lput(timer) trade-record-current
& q. V& z a+ J' A0 s# c;;评价时间# B# f# k% y# A% @, u9 [
ask myself [
% U9 _! R4 D( U2 W( D% p3 jupdate-local-reputation- D R" Q: z: Y$ f
set trade-record-current lput([local-reputation] of myself) trade-record-current8 m- o+ W3 U; g# [+ z" S0 @
]9 M" I8 h/ f( r# ]
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself z) n4 K" j6 ^' _1 j
;;将此次交易的记录加入到trade-record-one中
: u6 }5 e4 C3 o. d( \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 e7 Y* b$ [8 ]) l* M; d: e
let note (item 2 trade-record-current )
' y3 s$ E1 `' E2 A% Q, p9 Zset trade-record-current( T! A1 [5 f3 J) }
(replace-item 2 trade-record-current (item 3 trade-record-current))* f3 E8 F, l# W- \1 S
set trade-record-current
& Q( U! A7 C6 o* c, ?(replace-item 3 trade-record-current note)
* V M1 i- h+ {: D# o4 z) P; w6 c$ O1 P* K" n9 g
! @1 o1 i' q6 o. ]8 q
ask customer [
; Q' L# }& ^% ]2 t2 S5 V: Rupdate-local-reputation7 s2 P0 @8 G8 j" T' \5 h. R
set trade-record-current
3 B* r7 {% B- G* ^(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # b( p& F* `' w0 {, H
]+ u" P& a% |6 e) b y
9 Y; Q) d) o# Z
- p( i [5 ?1 O1 U3 ]( @2 a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) E3 y4 l+ U) |2 e8 ?0 o
" T0 U' {9 w' u6 E$ Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); S& x3 z7 O0 g1 B g# m5 p
;;将此次交易的记录加入到customer的trade-record-all中
- `! a. n( }# C% Z8 ~end
$ F3 t( t* m( s
1 t/ v1 Q7 A0 B' L4 u3 _4 @to update-local-reputation& ]! T- m- L$ `; `2 J0 U
set [trade-record-one-len] of myself length [trade-record-one] of myself9 S) y' y3 p% g E
6 A1 e: Q; M$ B$ T3 S7 j3 z: U. P
* v# h( L* B6 b7 X0 ^! L
;;if [trade-record-one-len] of myself > 3
( x! }& d7 T& ^" f! Zupdate-neighbor-total1 H$ y" I1 e1 v# B6 `# \
;;更新邻居节点的数目,在此进行8 x' R0 N2 n9 K I' K2 c; w
let i 3
6 M) l0 v0 F3 ^' _2 |let sum-time 0) D: Y% W* A1 N$ p2 P6 m" O
while[i < [trade-record-one-len] of myself]
( A- Q7 L% Y' G ]# ?$ G# D[% O) c7 h }& ]% Y( @, h
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' L0 Q3 ]+ z; l# E- Z' X9 G
set i
1 C, h1 b* |' y5 _) d( i + 1)
+ v+ V4 _/ I0 Z! e]
- u3 X: d9 P( w! F q' j Ulet j 3
% ^9 u2 S2 A* a# w. E9 ], T1 J, \let sum-money 09 G: X& w3 O O7 Y
while[j < [trade-record-one-len] of myself]
) ?4 A+ r( E* o o( C1 o* [" d[( {/ a- t0 @6 I
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)
! Q& }2 I4 }3 i0 R( {+ Jset j2 C. t& M8 T% ^$ \% l& X ^
( j + 1)9 K- Z; d9 a8 q3 R* z5 i
]
7 R' \' g4 J" k, ^( ~let k 39 v- S7 M+ J8 [! ?2 M% r0 Y" w) N# I p
let power 0
$ T! p2 U/ e3 g" n0 Mlet local 0
0 i5 q2 I' \& X7 h) }while [k <[trade-record-one-len] of myself]% Q2 g* J* _0 `9 m6 ?
[7 k6 P. @8 d+ g6 Z+ i6 d
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)
+ t/ l/ ~; v) F0 Xset k (k + 1). t* O: I% _: }4 k
]7 d& C! c2 z s; u
set [local-reputation] of myself (local)
% y5 Y5 K$ t+ e8 Q! {end' O. C- J) M% ?: l- j
; f, K# r' m" }% k# z- J5 r4 lto update-neighbor-total% C" c8 c) K2 d
" S& G% P7 |5 F4 S6 mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ D! N7 C* h& @! ~0 ]
9 ]1 y! j) b& l' W( T
3 b% a: r7 `5 {+ uend* S! U9 w2 Z, W# ?& m
- W' V2 ?3 r) @! }" N0 a! _
to update-credibility-ijl
( P k0 ]) ^6 z5 T8 x" G( s2 I1 c: c
;;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。
4 D& }" D- |. d! }2 H- @let l 0
! D, @ {1 E+ M+ Hwhile[ l < people ]
, n& N6 N! }4 u2 i; B2 R;;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/ Z0 {* `4 P, {- a9 i* X( }( w
[3 e( u0 b0 @7 k8 k+ ?$ C& L
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
t' G5 s7 K- z( b3 e5 n" E E Jif (trade-record-one-j-l-len > 3); }) y& z- }" I& S( V* N# V% q
[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 F* X; b% g! @1 {3 K/ d5 c
let i 3
/ H6 r$ q; P! y3 T/ C5 S/ clet sum-time 0
: S0 l. k7 z, n- rwhile[i < trade-record-one-len]1 r& n2 `' Q/ n9 ~* U9 o* z' n
[) Y7 Y& j5 A; {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* y+ H" D9 D( e9 ~0 f x' f
set i
# f; j/ `0 n( Q0 f) M( i + 1)
' U. U1 q. i+ V( t# J] F8 A% U: p$ a9 r
let credibility-i-j-l 0
2 f* b1 \4 W7 A2 y;;i评价(j对jl的评价)
1 w( x0 [* J% Y6 D( H9 A; `! w$ hlet j 3
0 }! I v E: @/ N4 I& F! V# mlet k 4
. @* q4 X" R: U% Wwhile[j < trade-record-one-len]! [$ g3 Y0 ^) u2 S3 Z
[
& z9 l2 |0 `2 jwhile [((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
( t0 O' m% L( f5 S+ B( A! Vset 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)
5 |0 s) T" L/ B+ c5 Xset j
% z- t3 c, ~3 a0 ?- _* a( j + 1)5 g# k! D1 k$ c" H6 a: h
]/ N- g" W; F% \& ]7 }0 I* [$ Z4 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 )), N$ y$ g) e3 Q+ j$ p, z
4 o# {3 S% k3 w( ~) q/ m0 m9 M# B
. m8 _% p( P% \' _+ Ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) v) Q; i: G7 F
;;及时更新i对l的评价质量的评价4 r( ]' o1 y6 b/ R9 n' t0 E
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 \$ Y& i E$ g; h8 D/ K- J( Zset l (l + 1)( Y+ M' m) o4 l' d% x' w
]* r8 Q! [" v. b7 B; Q
end/ a8 n* A+ [4 D
3 {- q/ x) {8 [3 q/ D% Wto update-credibility-list `4 t+ n5 j) u# z* ]
let i 0+ [/ N! U! i7 L
while[i < people]3 C, @+ y% }6 Q1 r) U& I
[4 ?% v3 C/ U) b( Y$ r* t* ]
let j 0
6 _0 U6 V _; N" d$ Z* r3 Rlet note 0
/ ]0 b. K, h- A& L/ R2 h* r6 J5 k1 Plet k 0& r, w$ v) z9 a& ]% H* w- _
;;计作出过评价的邻居节点的数目' j& s$ B2 v% \
while[j < people]% a( u4 W3 r+ V2 n' b. g
[5 T3 }% ~& v. D2 h* S
if (item j( [credibility] of turtle (i + 1)) != -1)
/ J' D3 f' i( s;;判断是否给本turtle的评价质量做出过评价的节点8 {/ A" i# j. }, M
[set note (note + item j ([credibility]of turtle (i + 1)))) N, |# {+ t7 z; s
;;*(exp (-(people - 2)))/(people - 2))]3 J1 s7 G/ [! g/ e2 H6 V
set k (k + 1)
! E( j6 S& m% m! [4 |9 P! w]! T4 ~" p) |" Z% g. H, w
set j (j + 1)1 c# A" Q: B- _* d
]
* T4 N9 m( q- @2 D8 l7 \set note (note *(exp (- (1 / k)))/ k)$ {) `' n( h2 G8 J- x
set credibility-list (replace-item i credibility-list note)
( I8 V1 W. l8 t9 U3 z. fset i (i + 1)% |2 R! o4 |1 j/ t7 I7 z
]
8 N* w: C/ S+ i- ]% u$ O, Dend
* A( }2 ^8 z: E' R0 X: G9 i P' w- u- ~
to update-global-reputation-list
! l7 ^+ F. [7 j9 }8 Xlet j 0! d L4 H$ [0 N/ @. g/ Z
while[j < people]
2 i+ K, ~$ L: a[
4 a+ l) p7 w) n: a0 M F$ Slet new 0
9 G! w; T5 q4 P0 {;;暂存新的一个全局声誉
3 W( S3 O8 P* j% h& L* g* U6 P! ~0 Blet i 01 x, d- A+ M* ?/ s4 d
let sum-money 0
: m R& J- h9 V( U E7 tlet credibility-money 0& c2 l' X6 u- J
while [i < people]
% G3 D. g3 n, A: c8 P2 @[
0 E0 M0 H1 b. ?% zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); e- I4 R* @# @3 L- S
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' b: P% M2 U/ C# i" e+ M
set i (i + 1)5 \' s; i$ N% C
]
" K( Z' \+ j% @7 ?let k 0
. A; G& Y) b4 j% \; u. glet new1 0( r& |( f \, Y9 C6 T
while [k < people]
3 u+ {* {, y& I; B) I9 z$ S[9 V0 w1 D8 H2 p- 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)
7 s6 F. p1 d- tset k (k + 1)& m8 b4 r. Q, R x- w9 l; q
]
- _, _3 P" O" U$ O6 Hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + ^4 D% {" i$ F" J4 M! K9 H
set global-reputation-list (replace-item j global-reputation-list new)6 c6 ^% W% ?) _( w) w: v# {! T# \
set j (j + 1)
0 l, | K( r! O' @1 X2 |/ ^$ s]- n; ]3 D: B. }$ H9 ~' o
end8 Q3 P7 r* I/ n; n F
/ S$ j9 _( Z: p! i# {/ y
( i3 n3 }( X3 ]* y( ~2 G6 @9 G+ I
to get-color
7 w4 ~) F! o5 Q
9 _5 n& |, D/ K* s" H# c1 U& Mset color blue
4 C: D' W1 H. H% k8 ~end
8 l7 S) c: q5 R8 _
6 b# t% F4 R- Z' ^9 h* Z1 Oto poll-class& T* Y- j5 h r
end/ N9 v2 ]) U5 b& b, f
2 _4 ~) K, y9 g2 f8 f. zto setup-plot17 Z9 S3 Q5 M: }* L; m5 n* T' r
+ [" F! [6 I. ^8 Q. nset-current-plot "Trends-of-Local-reputation". ?3 Z$ j, A0 |; ^7 [2 n
/ s' N& Y0 {1 p* z0 qset-plot-x-range 0 xmax
l7 f, Q# [. o3 _
" w8 K l$ b, r, j$ e/ cset-plot-y-range 0.0 ymax
( t8 c- S# y1 I* ^% k2 d9 Mend( X: R; K9 ^& `4 M6 X+ e/ }+ {
2 k: B2 c, r# x! t' B" B& pto setup-plot28 Q( R, S/ x- |% s( X& W' o8 z$ n
4 h: _0 D- q0 A/ \, U
set-current-plot "Trends-of-global-reputation"
3 K3 f; S7 ~. i
* U5 w- g+ ?% L9 e0 Tset-plot-x-range 0 xmax& m9 B/ d( @8 E+ M0 r
8 e4 d$ v- K; D1 s5 n; }
set-plot-y-range 0.0 ymax
) s- q1 y( D2 G, t/ T& y2 ^2 H/ [4 i, gend
. G# s3 D- n. X7 f8 y4 `7 c) E d9 s7 }0 k: d
to setup-plot3
$ l" g6 R- V" t- [
: z" B; V* I G& ^set-current-plot "Trends-of-credibility"
, p3 M3 L8 ~" U9 D" F4 @( [
+ C: ~0 d; K' \1 n) Mset-plot-x-range 0 xmax
& v. |' S# E( G9 W; E7 h; ]; G
. L, `/ h) k4 C4 U: ?5 Aset-plot-y-range 0.0 ymax
- W r a$ I' o! {# iend
! W, L+ S* w9 I3 P& c: u& Q4 q
to do-plots- D# h3 v+ u( p0 K4 \ h
set-current-plot "Trends-of-Local-reputation"
2 b; a# ~$ \: b8 [! F) `set-current-plot-pen "Honest service"
3 V9 X+ U1 i F0 Nend/ i& @5 X2 z/ p/ Q
, @ ]4 {0 \% \' \: [) O3 ?
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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