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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
: P! D5 c6 k* e, [! t( }globals[ f) A' K0 s6 ]# m4 t5 t2 A5 p
xmax
4 Q9 r) v# i O& J- P3 X& q( [ymax
+ `- x, D' p; r. ^$ ?" R9 I( Bglobal-reputation-list
7 ]0 J0 J. t: G; d* ?. E* M: G/ H- l! j2 G7 [0 K' a
;;每一个turtle的全局声誉都存在此LIST中
: k0 @+ X. G5 v3 T# K q. Ncredibility-list
3 M% [5 T9 K- t1 Z4 j;;每一个turtle的评价可信度
0 Z' U0 {9 g D7 M4 Rhonest-service
0 g+ f" f( F6 ~% ^' E2 {/ M- d z* s" xunhonest-service ]% _$ \6 s4 o' F% @
oscillation
7 @6 y7 q" g+ u; ?. `rand-dynamic) D# z* e, D0 [8 C2 V( v
]0 X/ l5 N; {) A7 E
" h7 J7 Z- U+ G) J7 r% Rturtles-own[
4 m' ?& Y1 {# K+ W: M6 t. ~, Xtrade-record-all, M* Y5 s5 M. D; q# O5 C% O ]
;;a list of lists,由trade-record-one组成' H+ Q y& U# J. f3 ~# K: G/ ^+ E
trade-record-one
) O1 f2 {$ N5 h4 u& Q: u; U W5 J! 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 H/ X' V2 x F2 |
X& C0 C$ b' C$ N' @, [7 D3 M$ [
;;[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]]
& ^! a7 x3 i6 e/ Z* R! [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]$ f, u8 X# y6 m/ s# L0 B$ X* E. [( d
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% t1 X3 A5 b+ K" G
neighbor-total
- t% [3 N* o) ]( Y;;记录该turtle的邻居节点的数目/ h& r7 ^5 Y3 L! B) n
trade-time2 V2 d' y; P# r7 V
;;当前发生交易的turtle的交易时间
- \. W3 f. f6 x- nappraise-give( m1 H$ k2 v' D. X8 s
;;当前发生交易时给出的评价
% m2 _( [+ q$ B' R2 t% [3 O0 Cappraise-receive
/ N% v0 z2 I9 u/ b. c( n. l R4 ];;当前发生交易时收到的评价
l& n- t9 e1 `9 C+ T6 y, R; bappraise-time
4 N) b9 l9 o* D8 M;;当前发生交易时的评价时间
6 {3 O- n5 K3 elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, o8 K% ~0 D6 d- m) e+ ]; m
trade-times-total
, e/ ?& y" ~; d4 I5 Q& B; E;;与当前turtle的交易总次数
( ~/ i' G$ {: d4 @trade-money-total
) C0 Q! E/ ~7 y& g: @( j;;与当前turtle的交易总金额
1 Z' S! \$ Q; [ |local-reputation( e3 ~- ~% g' @. a: V( a1 D
global-reputation
5 U' M6 w: I/ F2 }6 h2 D1 lcredibility
5 N8 Z3 f' @5 p* D, S% L* L;;评价可信度,每次交易后都需要更新
, J' q6 n) w$ r; w9 N r. I/ X, M; Fcredibility-all6 [ `1 f! C/ P! S( Y* t
;;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7 [; `) `9 q5 X- m9 y, X2 c
0 I7 F" A1 I9 o; @6 C) e$ h3 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
u7 {1 |( Q% k* w8 F6 ~, T% x% r8 ], I' {credibility-one3 M7 p: R/ k1 A; q" z! k% h* R7 i
;;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' X; K3 g$ m0 z* r$ E
global-proportion2 x2 m/ ]0 B0 f n
customer
; I) j6 a5 A9 G; G" Icustomer-no' p2 w! X! R8 ^7 U
trust-ok
! |, x9 u. I" ]9 W. Vtrade-record-one-len;;trade-record-one的长度1 R# m# S. y7 K8 `0 R1 X- B# a
]
! {4 B6 K* Q# M
; C! K! Z, s# P/ h; }3 P% m;;setup procedure
( \- ]- u$ U6 K7 q
( q3 @! t1 S& ]- P8 r$ k! ?to setup+ u" p- y7 u6 T8 Q9 Z& n7 v
6 G5 a, d; @- P( dca
& h8 y6 ~, {; s; X' K# h/ a9 {+ K, P: ?6 ?
initialize-settings
6 V& Q$ Y" K3 ~( T( b( S2 ^/ I1 _' d$ [$ L
crt people [setup-turtles]
/ B6 r( B$ x2 p9 O1 h% v' L8 B; I3 r( r& G4 I. [
reset-timer
% Q4 _ I- B& c, T- B5 p+ i `5 }% `. {$ k/ {1 q
poll-class
/ R, n3 _/ P- ^/ ]: u) s! [. d4 [
setup-plots
) N0 n/ W7 [; y$ D' _3 W
8 y j9 D) [& z8 edo-plots
! n- q2 b# W' Y& m7 Qend
6 ]1 Z+ F. ^' C4 Y0 Z) d9 P
1 J1 U1 A# J$ v4 Dto initialize-settings: c4 O" \- u5 u( L: E
6 V/ S6 H! B! S! Gset global-reputation-list []
) u+ n! }$ ?6 I9 K s
6 _! {5 u O# \set credibility-list n-values people [0.5]2 b* D, c7 B8 p0 I. K [& t
$ L* A3 d" ?+ Z8 T( t0 rset honest-service 0
+ J& [0 ^7 R# D, m# H9 }' G7 y+ G, v9 A# }* U9 F5 g
set unhonest-service 0: Z$ \0 K$ b4 m z2 R3 C# [
, B. D% v: _- C0 E( K
set oscillation 0
9 U) h L3 v `
9 [ ?7 F3 U6 l+ W, ~4 H3 |+ Dset rand-dynamic 0
* {8 H, V# D$ y" kend
& b- U. U# W j" h" a1 `$ L* {- [& [( C. E! y* A
to setup-turtles
# v& w& u( j3 z) Gset shape "person"% F& r+ n0 M3 h. R. I9 ^
setxy random-xcor random-ycor/ \' F6 x Q. n1 N2 K& b. w
set trade-record-one []
9 r2 G7 ]5 j; }5 S. L/ t; V4 K2 a: z4 a" w+ K* J7 D
set trade-record-all n-values people [(list (? + 1) 0 0)] ! I, [5 ?, _0 C6 X5 e
! j! U4 c: J8 f9 Y9 U
set trade-record-current []" a" b( \9 ]# b% ?/ @$ J
set credibility-receive []* b+ p' b) u1 e7 n) l( j9 `
set local-reputation 0.5' C' Y8 _# w" c# E
set neighbor-total 0* W8 G( x4 N+ e0 v; b
set trade-times-total 0
( ]* {& C( f7 n& v5 ?4 v+ Fset trade-money-total 0- m- p9 v3 k- B0 d' W* V) h
set customer nobody* F% ^- R& c/ y
set credibility-all n-values people [creat-credibility]* I; ~, W$ I2 B' C
set credibility n-values people [-1]
8 a4 w% o4 X8 x4 Nget-color
1 ?) E- T4 V0 |' l `) h, i4 k' f4 L- E& X. C
end: O9 r* T+ \$ j
9 Q; H' m6 P2 }$ [+ f J) f
to-report creat-credibility
# d$ z* S# z2 D: Ereport n-values people [0.5]( _5 i$ ~) } `7 P
end9 D" F6 u! D0 X" K# ~( w
' d0 z. I* D4 y! Y# r& _9 g& ?$ Vto setup-plots
9 h& D5 d; \ K" ^
, D! N2 U# M! [) _1 H! Mset xmax 30# {! [# U" }: M2 r* R* r7 A
4 }5 q6 ?0 U! c+ w' Wset ymax 1.0
$ T0 T3 W) N' w# x. i6 j3 P S8 i( E" i' H7 A" N
clear-all-plots$ i8 l9 X B4 [6 x
( a3 p* x7 \3 {* L3 h: @setup-plot1; S9 [8 u1 T _9 k2 R, m
2 M" ^% v5 V9 ?# C
setup-plot2
8 e# N* d8 J2 L$ c
! `3 `' ^4 S+ E" |% msetup-plot39 w0 D8 K) g# ~- K- {. A o
end
3 f# y5 n: F! [! [0 y+ M2 D, J V! L( s, e( H8 x9 C" a
;;run time procedures5 K3 U' J/ a; d6 X5 N7 C
! ~: g# X! L2 }! M+ [to go
5 `( P$ C I" g$ F
) U& j0 x K& H- Y7 \ask turtles [do-business]
9 n8 m5 J1 n) t# ]+ ?end6 {# b, L/ B9 B; Z3 |
1 C0 T& }/ ?3 A1 a0 v" h( {. ?# F
to do-business : ~* d! H% W( F
P. v0 s& c0 X/ p" i$ E# Q
$ }. ^7 V0 e: rrt random 360 M$ C' o$ h, \7 ~5 O# L: A) d
1 \5 ^, U, @# Pfd 1
2 Q7 E0 {0 {: Z) S, G9 `+ V9 y% E; V+ @7 ?3 m: ] F
ifelse(other turtles-here != nobody)[# }0 o% w% o" ]" A
! b, s$ Y. s' a. _/ I& Y$ h: U( Kset customer one-of other turtles-here
) ]$ R* R3 F; i1 c4 C& s
* D" P" V$ H3 C$ j, o;; set [customer] of customer myself
" u+ v$ w. O7 w1 F7 E% t+ C
: L( C' d' I" q! G7 Q' W9 R7 j2 T* |set [trade-record-one] of self item (([who] of customer) - 1)" h1 d/ a2 e1 }1 { ]: i
[trade-record-all]of self- _3 U) R$ s; i: q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ g# d I7 g$ z
" r+ P: F2 N& f1 U1 Z @2 Bset [trade-record-one] of customer item (([who] of self) - 1)
# b }2 |% A( J4 k' f2 x[trade-record-all]of customer
; x/ V+ \, [6 I) d7 W; Q5 _# c9 V G0 L( C* X- s
set [trade-record-one-len] of self length [trade-record-one] of self( }+ w: N3 \) o1 ?
$ K( s$ A: Z+ C7 w, E- Y
set trade-record-current( list (timer) (random money-upper-limit))
) _" j8 E. @, S; _
! b% S1 S, |1 M( B/ Lask self [do-trust]
: A4 c# b* P) _) u% w;;先求i对j的信任度
# a" v( ^3 V& u7 ^
; m" p& I6 T3 k# u0 }# u# cif ([trust-ok] of self)
! H9 C6 O9 }1 T) P;;根据i对j的信任度来决定是否与j进行交易[ \* k$ d# h- z1 `5 Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 E) P* U- u/ N, U7 U. F6 X9 S, s
0 K5 N1 J0 B( h* Y
[1 N% ?* J' J: m
6 @' R, I) A) odo-trade9 L5 t; ^, d4 q
C- r- m) c! w$ i; [8 m/ Supdate-credibility-ijl3 ^4 Z- M( F- Q, n; Q0 h
; ]0 [. q) o' t- o5 ?7 ~2 \update-credibility-list
! p# T ~4 W( z9 N5 o* b; x# i8 B/ m' C# @4 v# |1 O4 T
8 P( }1 z5 J* S7 E" Zupdate-global-reputation-list
& C- \: p7 W# I9 [! f$ T% n
1 g4 _7 t0 g+ b$ f. E& E) upoll-class
4 K* d+ w! S5 ]: V4 N- N
, y6 f' A! s, J. ~get-color9 R# Q- L, J+ I w7 E h
" d" S, _8 n9 Z2 D9 U
]]
3 q/ L. p9 p, ^1 g
( P& I8 q1 u: t1 M7 B0 b;;如果所得的信任度满足条件,则进行交易
`8 v' }0 I- T5 f5 M- E+ O' D) s! ], ~
[
$ P8 ~, x* Y: Q( i8 O7 M% I: h
) d9 r6 Y1 t8 n9 Y: Rrt random 360! T$ z- z( ^5 v+ M! u
" m2 s$ r5 H; H* B3 _1 hfd 1, }( e6 I4 v4 `+ p
- z) S7 ]2 _6 S K% n" K
]1 Q& d) }! m8 ?. }0 ?8 \5 H0 G* x. b
- i5 |3 |0 b7 ]# }/ \( {% Iend
* X( a" F* s1 m0 E" } ~. b! i. ~! c7 m9 ], R
to do-trust $ k3 u2 \, Y. h' w
set trust-ok False
1 ]+ p6 D+ N6 x0 K# E' o* L2 x' q7 l, f4 d+ d* B; {5 L; Q: P
/ F7 f/ [- a& ~let max-trade-times 0
; ]7 r( C% O3 j8 {# P' t0 m4 G% jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 B& o3 @2 }9 |* }" A3 Alet max-trade-money 0
8 o ]4 s* C& c, Uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, \& g% V \. Q* T f( Y; Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 ]# ~6 Z5 R$ F" m
5 B- W V5 H) U' e& M; J0 T" r, q
2 F( y& A+ z' j! f9 n& |: V
get-global-proportion
M3 y" W0 q8 e1 ~% N2 I/ r0 Wlet trust-value( U3 q: n. O, p9 ]) ]- \
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)
- w1 j2 Y3 O7 |& a* gif(trust-value > trade-trust-value)) f. J4 j& y& G9 v6 g% R
[set trust-ok true]
+ u1 {3 O! G( N* t7 Y4 J4 G( [end
+ g6 y0 {) ]6 `! z& ?) F6 r
7 H7 e6 m; i3 O) k4 Bto get-global-proportion% o+ x4 V& s" L7 o& _) X9 m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 h! v) {2 m @% [[set global-proportion 0]6 W3 ]2 b9 J( c3 {# p1 b* @9 a1 c
[let i 0
& n8 ]2 `% \- l! U) Qlet sum-money 0
3 V4 W1 D4 @! awhile[ i < people]
+ S# K3 f, a; ?! r7 T$ B. A[/ w- J8 m: I4 l4 _
if( length (item i! w+ O) r% g. W" e9 l0 I* r
[trade-record-all] of customer) > 3 )! E) B9 l2 v, W; Y
[
* D5 j/ z+ W2 J. \0 rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ r/ x. F+ @5 W" p8 ^]: c3 O/ I$ k& g; U, ]5 i
]
. T6 ~( T1 k% n1 V- D5 x6 dlet j 0& J: {! x6 b: ~. n! p# m
let note 06 R& f8 a: s8 @1 [' r
while[ j < people]
1 x! j$ p+ J; u9 p1 p; x( X' S. {% z. w[5 i1 d! D! V; J/ E4 B
if( length (item i$ ]' E1 a# f4 S& n$ H; v- N
[trade-record-all] of customer) > 3 )9 d/ G: H6 k2 l4 ^. U
[
4 f. M9 |8 B- |- j- iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ n. e, u) ~5 p! e0 y& l% F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) b9 T/ m. S# y: j6 K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 S i! Q, @3 r% i0 f
]
4 ~) C+ g9 ?6 {' D6 D. m' o Y# X- C4 u]
3 d' N0 W9 N( ?0 j0 K% p2 o/ k. Rset global-proportion note- y5 I6 v1 ^- x# o1 Q1 F3 t
]( a, @/ H* A; u$ t9 N
end- V5 x. d' n# d( ~# s) D
! }9 s5 V$ W/ v( P. ^6 d5 f5 ]to do-trade
- q6 Z' R; }" B;;这个过程实际上是给双方作出评价的过程
3 |4 e8 m; h( D. B% x$ vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 ]- N* s P# o. |1 _# Q% g8 v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 u' |8 D8 N" c. e1 ` g
set trade-record-current lput(timer) trade-record-current
$ K' H: V3 l8 `8 K; P;;评价时间
0 Q* ~3 T% n+ u+ q; j0 Iask myself [
( B3 W" B# r" Z1 t; u. Bupdate-local-reputation# w! t5 x% H+ n
set trade-record-current lput([local-reputation] of myself) trade-record-current
0 p% I; m) m4 s2 ^4 ]7 e]: i7 R/ c+ p( i/ \6 N+ L9 z- H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ i( x1 p0 l9 Y% {+ I;;将此次交易的记录加入到trade-record-one中8 {3 M5 M5 t1 v4 o! E2 _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ Q, ~- c- l7 W, S3 |! ulet note (item 2 trade-record-current )7 k9 P/ a; @ Y
set trade-record-current0 t1 \8 R6 V* B" _) ^( m2 M" ?5 P$ h; ]
(replace-item 2 trade-record-current (item 3 trade-record-current))
* T+ c1 ^9 ^+ ^' k2 q; Mset trade-record-current
9 L; c7 J% ^" { x( g- L/ b. m$ z4 ^(replace-item 3 trade-record-current note)' R" V9 U+ ]% n \4 M, ~* I
5 B6 v( y- q( @: R( J2 g
5 j, z1 ]" A5 R. D% cask customer [4 p7 j& ?4 C, K( ^/ r: E8 k! h
update-local-reputation
' x% p) \' I2 R' Fset trade-record-current; y, U' c; x8 v4 y9 F
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. B' ?7 j/ I0 O) L3 x5 P" i2 L]7 F3 M# T4 Q5 x/ Q
3 Y2 K$ A# z% v2 a4 a% z- G/ j( B4 ~0 F, H& Y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 k1 M V3 Y2 z3 ]' l$ x* B/ \. i* j& ~2 w1 O _. Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). w. A2 c5 R7 W ^ ^5 H
;;将此次交易的记录加入到customer的trade-record-all中* J4 U6 g& D8 [& K
end/ Y+ n, Z1 M* s! A
! s) X6 D0 q( _* \8 s# Zto update-local-reputation
3 r: z1 S% ]8 ^. w L0 Fset [trade-record-one-len] of myself length [trade-record-one] of myself! h% j0 y/ ^! K3 R+ `+ L
6 p, c# {: l3 n9 o* e2 V1 h
6 d8 D* V6 B+ L;;if [trade-record-one-len] of myself > 3 ( } V5 h, k& @+ I3 O5 i
update-neighbor-total( T! B7 L, M. ^: T
;;更新邻居节点的数目,在此进行: `2 I. `9 G; M+ |5 [
let i 33 l4 m( {2 `' r9 Y
let sum-time 0' r1 M( ^5 t$ \' F- u* s. D9 q
while[i < [trade-record-one-len] of myself]
/ I1 a) w9 Q" g7 d3 \, h[2 x/ H; H, x& \& @3 Z( y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, E( r& N% Q" `& {8 a/ Yset i( k. S' s7 a8 e1 V( I k( X6 F& m
( i + 1)$ J3 i1 \" {+ u0 Q
] B* `0 g: {3 O; Q3 H( Z( z% L+ z
let j 3
5 r) M; I7 _5 ^; ~7 \let sum-money 0
* O! f) s# ~/ @4 [+ b+ S3 c$ O; {while[j < [trade-record-one-len] of myself]
6 p' z7 u8 j: i1 E% l" m[8 L4 y" j5 x" ~7 L; d0 i" U/ S, r
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)' i' r5 B5 b, p" h( Y
set j9 g) g4 Q# k9 i+ e: {
( j + 1)
4 W4 k8 K- {8 Y- m. r6 X4 H7 l9 K]
! ?1 q& K: _0 ilet k 3
* p6 ~; p0 G% d$ hlet power 0: h; }: F: c6 n) b% c
let local 0
0 f% M$ l+ T* {/ Q3 `0 x8 \9 F. jwhile [k <[trade-record-one-len] of myself]: h/ g) F5 W" L% I5 W7 P; W3 x
[
$ ?6 @- Z, C: \- R1 e( Cset 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) 0 V, O' t# U% D+ O9 t; T3 ^
set k (k + 1)
' p! K. B% x6 T6 n2 F]; [# I( z9 D7 i# Z- z9 ?
set [local-reputation] of myself (local)0 H. G) B6 w$ w; H2 {+ S7 ?
end
( C$ B4 P: |4 R, p1 o
3 @2 o A. l: k! \' ito update-neighbor-total% V: K# r, X8 |; o% j5 \8 |9 U
& h4 q$ a. W ~+ S. \8 X$ k
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] t6 ^: `$ S7 w
- E/ P! @5 `+ J# B0 q
! o1 }/ w: I" j7 Z, I" m+ hend
: o) h" z. o( s0 u$ q& ^
# v; @9 r% A$ O/ U2 a7 Tto update-credibility-ijl
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2 I8 r5 ]! `$ ];;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。% ~# b# M7 H+ P( B
let l 08 r( o% D c3 b1 w$ q1 A
while[ l < people ], t/ T6 v6 B) D2 i$ C
;;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" t4 u+ u$ C! Z: O" l) S
[
- B$ I3 q/ c9 C0 mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 @4 q' p9 h8 N5 }2 U1 d7 {3 @if (trade-record-one-j-l-len > 3)
/ R: l; q0 v) ]& `# P( j[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$ T* R4 U1 i. n2 |$ b
let i 3! ~% k& d, x3 P, S% R; R
let sum-time 0
5 k0 G& k2 p9 Q9 d* T9 j. qwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 G h1 K2 H1 |8 J# Vset i7 x8 h) E, K+ s
( i + 1)* d' H w3 g! ^+ j
]. ?9 k* {8 c! x" j/ a3 J4 C
let credibility-i-j-l 0
7 A& h4 [ a, t8 B# D* s;;i评价(j对jl的评价)
# ^' F7 n2 {1 R2 mlet j 3, w$ x$ @! I0 t4 S# f1 j: d
let k 47 x9 t* d% r3 S) _* e
while[j < trade-record-one-len]: L1 N- i) `$ v1 ]1 U
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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
7 m7 ?4 x% I+ t2 ?% Qset 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)/ ~- ^: s, z# E; h0 }
set j, K. Y8 E9 m& B- x
( j + 1)
- l( _1 h3 ^) ]]
+ K; g# L' ~$ X" ^5 N% ~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 ))
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5 c, H; H" [" k! R/ wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). Z) j; o% {$ x$ P8 e+ H
;;及时更新i对l的评价质量的评价- }% p0 l6 u9 Q8 V/ }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 ^! f8 Y2 Z2 H- n# o4 Z* ]. iset l (l + 1)
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end
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+ M0 K+ x! g7 Y6 M8 o' |to update-credibility-list
7 j/ M; b7 _% T0 tlet i 0& [- ?! z! [% _( N5 s9 ^
while[i < people]
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let j 0( A8 g7 b, ]& s( N$ u2 g: \) M, h
let note 0( O3 G' e6 Q. ]- { E
let k 0
d/ [- [; {0 @5 a;;计作出过评价的邻居节点的数目
" l, R) D% S1 p: }- H6 ^while[j < people]
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8 u5 q, K# C8 b2 B, \if (item j( [credibility] of turtle (i + 1)) != -1)3 s1 `. ^" Q" D) n* C# L' p: z# k
;;判断是否给本turtle的评价质量做出过评价的节点
7 n% y% R* u% f# b# C* t[set note (note + item j ([credibility]of turtle (i + 1)))8 w" ^! U% Z) M2 P
;;*(exp (-(people - 2)))/(people - 2))]; o9 r5 ~: b6 H6 M" A( R$ Q% {/ q r
set k (k + 1)
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set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)$ v7 p+ k R2 R% r G
set credibility-list (replace-item i credibility-list note)
* }4 c, |/ z$ N2 Z( H1 Mset i (i + 1)
# {" a M3 g) d7 E]
) O- u! h- G) h* L: D1 n' Lend7 Y0 T2 _& S$ Q
! D i- C5 K4 i! Qto update-global-reputation-list3 r7 a/ d) ^5 _, ] G
let j 0. G/ L c4 w! H
while[j < people]: g& }% q* N0 c' z/ ]/ _- K0 r
[$ e, O Y/ L0 Y. v
let new 0
9 r( |+ S. @6 o& g% j! g;;暂存新的一个全局声誉
: `% m4 Y0 N3 q1 ]. O& e' V7 A) {* D& Flet i 0
0 p' I0 z& s) d" x; e4 f1 z$ d& klet sum-money 0
; t* H+ P6 S! j; a- plet credibility-money 0- ~- Q2 G; w: G$ E9 d' A
while [i < people]: R. ~2 z/ R! @; c6 j8 W) a
[6 i. A! k4 K) j
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" y- D, r; G6 t' ? J; C1 m4 ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 ~6 Q0 |' V C: p5 |
set i (i + 1)( |2 L) } U, B3 R; d7 e, k
]$ F* h6 b1 ^% H" C1 y9 g
let k 0: W+ k/ l: p% `% X1 X8 J- s4 y- \
let new1 0
. @' U# G8 c; [0 q. K! J4 uwhile [k < people]1 V& N% I! \1 V, x* v
[
0 r$ U3 [! T" c7 k4 ^1 R) e* d4 |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)$ ^; ~" G. a, N7 E/ u2 o0 R
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) m, q2 P# ], }) z& w
set global-reputation-list (replace-item j global-reputation-list new)
5 ~+ J! \4 ]0 O9 p' kset j (j + 1)
( y* [+ K$ u- o- ^( I" j4 K! k" ]]
; d+ t; l! z& M V6 Tend
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* s2 E9 b8 z% s
; F( N u L, Pto get-color
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set color blue
' K/ z, a. e3 w7 kend3 I/ \2 a6 t) j- P2 ?# @
9 k7 s0 e& I$ w8 V7 k3 h( D" W' dto poll-class9 k! J. M! m; O1 Z% A
end
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to setup-plot1" B# }# |$ L% f" `3 T
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set-current-plot "Trends-of-Local-reputation"
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% `. H1 D; t; k; x+ E7 f" W+ iset-plot-x-range 0 xmax7 K8 e! [ R5 B/ `
" c' f* B: A1 }6 f& Hset-plot-y-range 0.0 ymax
* a4 K7 y# I8 d0 y* U7 j/ Z; pend
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# N: W; d n" t+ Z5 i1 g& }+ ~2 Pto setup-plot2
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set-current-plot "Trends-of-global-reputation" ?) r Q- N1 Z/ f* v
1 [0 P* s- d" w$ A# q6 }; fset-plot-x-range 0 xmax
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+ z" ]" Z. O( V& @+ Zset-plot-y-range 0.0 ymax; ?/ L8 I3 b! A; l
end
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1 T" a! V' H* J# U1 Oto setup-plot3' K; @# t# r6 \& D1 R
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
7 c1 k+ j- S/ y, Pend
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to do-plots1 f9 Y! S, l! m( L
set-current-plot "Trends-of-Local-reputation"
" `2 q( c {+ C/ n0 vset-current-plot-pen "Honest service"
& \6 _ W, |1 g; A1 N* jend
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9 n% [% X: b6 ?[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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