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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
i/ n. @( g) A9 w7 M" hglobals[* A/ a' \8 `6 _- A7 N; S
xmax
- u) O' m: k& L+ [+ Y0 lymax3 u2 S! L$ D3 l K
global-reputation-list; b2 N$ \! g3 Z% N6 K, j) A$ I: ~
/ ]; c; R7 R, h/ F
;;每一个turtle的全局声誉都存在此LIST中
6 _* Z$ B3 J" Acredibility-list
( E$ l# H' }3 m;;每一个turtle的评价可信度
0 R- I2 a K2 j9 Y' x3 H" V$ @honest-service5 y* n( G$ C; f1 j M
unhonest-service
5 {: i) _ Z/ `1 toscillation+ x, w- T2 y5 p
rand-dynamic( n8 M2 ]) B9 t; Q" k
]3 `: C4 s; P2 m. { ~
% F" g% f: \/ ?; I2 Eturtles-own[/ G ` j8 ?4 w( a- u# _" I
trade-record-all! {) D8 S/ F' F/ {4 z
;;a list of lists,由trade-record-one组成
2 F ^" l2 k& Z0 b1 I% I$ mtrade-record-one3 v- E: f: B# p' p
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% x A1 T4 D1 i" r( ~# m
. S$ d: l" J2 l. B" X! `7 q
;;[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]]0 P: J4 ~+ y0 T
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' g: l2 c( w8 _2 Y; ^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list0 e& [, O. @3 |/ f" {
neighbor-total
# H5 E+ n! p8 N: q;;记录该turtle的邻居节点的数目
4 L9 X& w+ J7 r. \% Ltrade-time& ?; h! T" I1 T/ D
;;当前发生交易的turtle的交易时间
0 R4 M! h: a- |! z2 u( e' t2 ~& iappraise-give% R2 V8 s0 {% Q/ g
;;当前发生交易时给出的评价1 A" X& P# _0 P% G5 r
appraise-receive
3 r0 z" h5 O r7 w' x;;当前发生交易时收到的评价1 D! `1 `# p; e1 O
appraise-time
" ^; v' @0 R5 o;;当前发生交易时的评价时间. @; k# H! J+ t/ Y& R
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* R; h3 v. I utrade-times-total/ n/ \- V9 C) p; M
;;与当前turtle的交易总次数 L4 c, u |8 ~
trade-money-total5 {# O" p% o- F& e) A& F8 y3 K
;;与当前turtle的交易总金额
) z( x" }, \. H$ t9 v* D) ]! _local-reputation
4 ]3 r) ^/ D0 Z9 B/ A/ ]global-reputation
/ k) u/ e. J- B! \$ |$ Ycredibility
, d- C8 {. q4 e. h9 h, c) ^4 H;;评价可信度,每次交易后都需要更新
m* V9 R1 {! \4 P# ncredibility-all
+ O9 i- N4 ?& x* Z' ^" f;;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. S1 L0 q4 r7 ]1 g
$ x `9 L4 K+ V+ J& N9 K; e" v, s _
;;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
" Q: X% u& ~$ scredibility-one9 ]9 ^! f* y0 O. i% s3 J" s
;;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
! d! m& s" F' U' z; Sglobal-proportion& T: _* J4 ^8 Z
customer; K; I2 {0 v# `# w
customer-no% ]9 H9 q( j2 i
trust-ok% D. Y) [$ P% o2 G% W) K
trade-record-one-len;;trade-record-one的长度
. S; _0 F% B( y1 []
3 y% J5 R/ o$ E6 Q: G0 ^2 `8 ? R+ D. Z8 v% n$ {( U
;;setup procedure# {- j4 R: ]; I H* D2 F* \
; t' g# a q6 t6 j8 Y. e5 c$ ^ e3 k
to setup
% ?; O, X9 m0 [( Q" X# n2 c3 T' g. a, Q& h, x; D
ca$ J1 R0 M W; ]' M6 N/ h9 M
1 _* x, Y! M" h+ h7 e
initialize-settings
+ A$ Y, C' v& P. p- ^
! G% U& D! R* V! {. lcrt people [setup-turtles]
) l2 q* I4 H6 k# U
5 B4 W D2 L' V$ c7 g2 greset-timer1 H! B9 Y2 V" V9 O6 Z" a! i
4 J3 r+ U' J- F- b5 e. f
poll-class/ |. R- S! Q* @8 Q) y/ ^1 P
\- D0 L* v% i* }
setup-plots8 ?1 M# _, G% J; h
$ Z% ^4 _2 ]: I+ f4 n- L
do-plots
0 [8 P/ B% H" n3 \1 Hend' h+ T' I% J, Z5 S% O- o8 U
7 T0 p# B' D) vto initialize-settings
% b0 O1 P( D" X; p( p
) s! Z* l, o9 S9 pset global-reputation-list []
' L+ R/ A' m) U7 q6 \; q
2 A; d3 P! [( y9 S* U% V9 V qset credibility-list n-values people [0.5]6 h( n: Q: N4 g' j+ U3 J6 z
1 l, ~9 } ^: C& d
set honest-service 0% d2 e0 x0 J& M, Z a1 O
- g1 W6 K X; t4 q) k+ |
set unhonest-service 0) \% u5 z, M# N9 T9 p
, n7 u& j) v6 N% S6 mset oscillation 0
! @4 i) ~% y) D! I: `( D& [# O4 F0 |% Q
set rand-dynamic 0& i' D& P, H! ^1 K
end
1 H2 ?# E7 Y. f* J( X+ c: o2 @5 W9 F; O
to setup-turtles " R- T3 }0 K2 M1 b
set shape "person"
2 x* }9 X; F( @3 \, _setxy random-xcor random-ycor
A6 V8 r6 D& m, p4 \set trade-record-one []4 n/ S3 a& @& x% B* y
' s/ g4 P- v1 R
set trade-record-all n-values people [(list (? + 1) 0 0)] 2 i" b T# p5 O+ V% O7 K! P t
% e `$ Z- k6 Xset trade-record-current []
|9 C" q0 k4 m2 s; t n7 C$ Qset credibility-receive []
$ u5 K6 _) y, C t1 [3 N5 \set local-reputation 0.51 Z$ M7 F% D0 l9 Y7 e. t
set neighbor-total 0 Z6 U3 ~7 P" a/ P& n B" G6 j5 A3 W4 Z
set trade-times-total 0
, f! b# P/ K' H k* Rset trade-money-total 0( e. R( i H" y# t# s
set customer nobody
# @" q4 v/ b. q: ]set credibility-all n-values people [creat-credibility]
# D! {1 S, D- w; w+ jset credibility n-values people [-1]+ ]6 q3 \. Q/ d% E6 {
get-color q# p9 X( H a1 p5 ?
! Q2 ]8 V3 J% S& b( ]! n; C& M
end
8 o4 D' @# G- T* c0 p! W$ v) U
8 q$ P) K2 M! O# v" vto-report creat-credibility: {* G! {7 Y" k5 e! l
report n-values people [0.5]% D) C, d9 y9 q
end
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* y/ G$ |- c8 h( b; U; g, Fto setup-plots
$ {" U9 ]/ g& e. k; n! W2 N: l
3 W/ N p4 Q4 W+ b x qset xmax 30
) Q% @: U d( {, }8 D* A
% ^5 A+ y" M7 @- P+ a8 @6 c/ bset ymax 1.08 C: P- f' y; h' L0 l
, y: b: w% K: g$ a* ^+ Y8 c! _clear-all-plots/ K, r! w% l. D/ y7 |: m+ |5 F
* v( T: N) e+ Y
setup-plot1/ n8 e$ l; @" X4 R. h0 o0 a
( R) |! }/ L3 s. Lsetup-plot2
. m! a8 v0 U8 F7 i; `5 g8 K/ z0 N2 t! M% @
setup-plot3+ [' _: ?; R3 c2 N8 N
end
' ~( H) T1 o, X( Y
a! S6 x( B0 d) F# P;;run time procedures) o! Z4 `9 ?. @4 | i/ R
2 H$ K$ t* [) ]1 a! U' H; h
to go& U# M* k! r- W2 a5 F" g0 `! i
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ask turtles [do-business]3 h1 h8 t$ ^3 M3 ^6 ]
end
/ K3 |. ^' K& J9 n% `" Y7 W
6 H) a# @" F: Ato do-business
& ?; ~, [. [' k5 T! k
. a; y, \( g) w' X6 v( I- z+ ? B/ U+ H `4 i0 l
rt random 360
- N' N- M0 {) h2 S) M5 w. s* P# b+ U5 h, H
fd 1
% W7 e: T. x7 K' S2 s
/ x7 u( a& f% g. fifelse(other turtles-here != nobody)[/ J/ a+ X c/ K4 ?/ s2 j, ?
1 P, `$ y9 A! l# i1 {; o
set customer one-of other turtles-here
6 E- r0 L( P/ s/ r; ?0 [3 R w$ O& k: Z! v
;; set [customer] of customer myself$ P2 S: s- W3 B& Z* E+ k/ x
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set [trade-record-one] of self item (([who] of customer) - 1)
4 ?, A% a/ G3 e+ u1 p4 a) I. F/ b[trade-record-all]of self
( x3 N3 @; x" g0 Y% C: {" K;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 T# @1 e7 `+ ~. g: z* J* v6 e9 X3 }7 H* x
set [trade-record-one] of customer item (([who] of self) - 1)
! m M9 X! Z+ E' H9 }0 O[trade-record-all]of customer: e0 H- X5 N i4 F5 \
~1 V% g9 j& M$ m- b
set [trade-record-one-len] of self length [trade-record-one] of self
& T) `4 u0 ~) m
& b* J+ s* ]4 v: R- b3 a$ bset trade-record-current( list (timer) (random money-upper-limit))3 Y& S2 D7 c7 t% e
5 E% |, Z8 E, `* J. D0 I+ D5 \
ask self [do-trust]
4 g! V4 g0 ?+ d; Z: J2 Q;;先求i对j的信任度- T: J+ Z# W/ j! q
( r; S, M; o* V4 B J, ]: y; p
if ([trust-ok] of self)3 q `! D+ U' _* q" G& q4 i2 H7 m
;;根据i对j的信任度来决定是否与j进行交易[0 \# B. X+ c* j: Z: l- F$ g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ e' p; m0 `3 h
- S& G. r8 z" D
[9 `, o8 U( w6 w
; z7 `/ Q# m$ s# V& P7 cdo-trade
4 P: ~+ W4 g" E2 n. A% I# Z) o- @
4 V4 F' K* i: _5 @; H0 Q' ?2 Tupdate-credibility-ijl
% ?2 `) N) I: o9 k
- O9 D- w- P0 k3 m1 O# p9 F7 x& dupdate-credibility-list4 u6 J( _6 k+ R' O& O4 X! D" v
5 @5 ]8 E8 p4 B. c3 m9 Z
# M4 p, O- f+ y
update-global-reputation-list
- d4 }3 `( Q" q/ S: U: I5 u3 d8 x9 o4 t0 ^4 E3 p( C
poll-class: _8 B, [; D4 \$ Q M
3 ?, I4 \8 Y2 n" S
get-color
9 `3 ~: }6 o5 R; w4 @7 d
* u( \% n& O/ \. @. }]]: D) t3 C) Z3 Y) j, ~! m, F, `
7 B4 N+ C7 E0 ?
;;如果所得的信任度满足条件,则进行交易5 l! X$ a- A5 A5 }6 T
) f; z4 \$ u8 s, w" B8 Q$ x
[
/ i, }. O% p5 P* [& m+ z8 V9 Z+ n h4 t0 ~
rt random 3603 M2 @# i7 w' t, f$ E
0 F4 X, f% a& h0 B
fd 1: v; r( d% j: q2 d- J$ N
M: \) w0 o/ w* m# f]9 v% X0 S% u& V' x' j4 @: E5 Q
- p1 ?9 A# i1 Q/ Y: |; ?7 f
end
" E8 p, p5 X% c7 X' ~. }+ {5 d1 d+ c3 [1 J
to do-trust % ~3 O4 s! t. U y' H
set trust-ok False
/ A. _: G6 r, ]! ?5 f! e3 _
! i6 j) i8 h5 D" q3 c- L) y0 Y- ? ]. L3 }: }- h& H( n( M9 w" p! y
let max-trade-times 0
' c3 { t1 b5 @5 iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: G z1 \9 l+ D0 ]/ c0 P6 e
let max-trade-money 08 {1 H; [3 L. n' x, I8 p
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# l! {( X- ?0 U# g1 m. ^let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 G* d( Q$ i( M, S* A! ]+ i) Q! Y v# E, v) W5 F; g+ Z
" K; D; @. G3 c! O2 n" X; o
get-global-proportion
5 B8 C* F" ~7 g1 Wlet trust-value
. ]! B$ M7 \( \" @$ n" ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
6 ^& d5 N8 H0 g: Z9 e1 tif(trust-value > trade-trust-value)/ u" w' u4 R: W' a
[set trust-ok true]
& I& M+ B2 f V5 M& B: fend
6 i8 h2 Q+ s4 C$ b3 y
+ k, L! ~# j/ O8 K& R9 F- \8 Zto get-global-proportion7 z, b: F, `8 i3 h) y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) N' g8 `8 A2 y( O7 ?; P
[set global-proportion 0]4 M% D" h" u6 S9 d
[let i 01 T+ Q" k5 f4 {
let sum-money 07 l" X- f) }& i
while[ i < people]
) z. o6 `# o( L* _" g. d, d[
P- z5 S/ g/ Qif( length (item i9 i t6 J3 \, C" B& }, r3 X3 q
[trade-record-all] of customer) > 3 )2 v7 a4 `$ a- a. e8 z' \
[4 q; C& r0 O( w5 K: X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 g8 a3 u) d2 f% S. K2 R% n4 o9 C
]' E. B+ R6 d9 y9 }0 }; K4 K
]
$ P2 B% t0 i" W2 M0 o5 U: ?5 llet j 0' C- G) B& f* U6 P
let note 0+ ^. W4 a) K( r" E
while[ j < people]; ~% ~! z. x \6 P
[5 p. ^# l0 S$ S5 O* L
if( length (item i
1 S8 B: L2 @. D8 u9 {; q! M[trade-record-all] of customer) > 3 )
6 W$ Q5 M( w5 i: M[
8 h: {! t( Q( h4 [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# Z/ d2 ` d) D B/ i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' z! D: r* y/ B" u- L1 w' h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# P$ U. a" ?8 H* q5 Y! O/ a5 y]! u$ w4 H, o8 G6 E
]" t2 g8 K. U( g* ?& I, `
set global-proportion note
1 T2 I; O% r: n% b]- G# {8 F/ H/ y1 c# G8 x# O
end
% ]' b2 `- j6 y% N; C* H9 [$ D E' e1 h; x! ?: T0 h' h1 I1 k
to do-trade& n; u$ a; ]2 @9 _4 r; P1 a& k
;;这个过程实际上是给双方作出评价的过程0 F5 X! Y8 @( A! @# y' `# d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 I) I: r9 @4 X0 ~! z0 W* i: x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 V( p& h- ^9 y# P1 e' `set trade-record-current lput(timer) trade-record-current: l7 A8 K0 N# _# @$ [( M
;;评价时间/ W" T, T( f" I6 {' h1 s% d& Q: J, y
ask myself [
; T5 {1 X& }3 }7 }( O0 rupdate-local-reputation! ?& I( d1 S. P, m+ b! D( j
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 z% Q4 F) Q5 P2 i) a! ]], a$ n: O- U" Y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% }! j+ G. s9 _$ o2 u: [" z
;;将此次交易的记录加入到trade-record-one中! S2 y) R! R4 ~1 n" q9 b! k
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! x% v' m0 [2 `let note (item 2 trade-record-current )3 U/ F+ ]1 q% \% c' }. e
set trade-record-current' R( l/ Z4 r/ K, a0 {) C
(replace-item 2 trade-record-current (item 3 trade-record-current))7 J) U( M4 P6 o5 ~
set trade-record-current
* N8 G/ f- h- h(replace-item 3 trade-record-current note)" `* O6 e; N- @, p" }" L" M- O0 x! _4 E
+ F2 t3 F5 g0 |+ C) u5 X) R1 K& M7 {6 x5 @- R$ a
ask customer [, @7 T8 e+ \4 K* A$ |- R/ S0 W
update-local-reputation
" A1 Z+ @+ w) _set trade-record-current
( t2 Z, V3 ]* e: k(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ q2 ]6 ?& E- ^ @) ~" X
]4 C4 |- ]8 c! d. k6 F# O* d
2 @1 B5 w% l3 v" m
6 b8 V3 v" w) I9 {2 m% Zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& z) N& F" N* {, Z. x+ q
0 X- g; H2 ?7 n t$ C
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( O% D/ U: n# [6 B;;将此次交易的记录加入到customer的trade-record-all中
- E3 E. E$ K" E% z( @& Hend
& E7 }3 R6 w$ x1 \! l
# f+ d. }5 l- ]to update-local-reputation
2 h3 T" f, l$ j& t+ M0 H, Wset [trade-record-one-len] of myself length [trade-record-one] of myself
" b- e8 \# Q2 _ D: ]" ~5 ?0 c4 x' f+ o3 }8 c# Q+ C+ R
% r5 Y, X8 v/ `9 g
;;if [trade-record-one-len] of myself > 3 # ?( K8 r* O+ D6 l5 q
update-neighbor-total- r' ?8 B$ \6 l4 i2 O* m
;;更新邻居节点的数目,在此进行( T% ~1 N- T/ s9 Y9 {& y+ B
let i 3
% z& F P4 b: R8 Y2 Alet sum-time 0/ l: t. e; P! l
while[i < [trade-record-one-len] of myself]
/ L! v% g) F, b- u[
: d$ I4 m+ w' X6 K" ^$ Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 ]( T7 @4 z6 K& a- Z3 C
set i
9 m5 F4 i: y. N5 r- H- Z( i + 1)9 e3 f7 ]8 R/ }1 t9 m* _# Y
]3 R, U. r# v5 }' q% x: b# ]) `4 T
let j 3
$ T+ _4 j" w q4 U! Z8 F: ilet sum-money 0
5 v- ]+ L6 j) G; wwhile[j < [trade-record-one-len] of myself]
5 { T9 l0 C4 b! C" @9 |' }" ?+ u0 v* L[* A, H* |7 g+ ?; b# ?7 v3 K
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)) g# R% K/ X. `7 b! R6 O, U
set j, ?0 S5 n! u! a4 D" f
( j + 1)5 P) P# H0 C4 Q2 K% U
]
# e4 r$ ^' b$ glet k 3$ O1 K& ^" D) P" r0 d; T
let power 0- U4 a% G y; f2 S5 `' L
let local 0$ v0 E7 a6 I K
while [k <[trade-record-one-len] of myself]
! d3 N+ M/ s1 a0 W' t[
( m" U% n9 Q* f7 C8 p" Vset 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) ! s* w3 v% G, V& v, n* e, t) @5 Q
set k (k + 1)0 J9 s% ~; Z# a! O* \, L/ F
]
/ A1 [4 J# ~3 E1 m8 Xset [local-reputation] of myself (local)' u! T6 c1 m+ E5 \ P9 L$ f
end/ W; Q" E2 ` D' [7 D
/ Q0 [# q6 f) }! E. T" sto update-neighbor-total V! m, C. u, g2 i9 K5 L
' F6 J: [1 G7 ^& t) P1 P- z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! Q9 t: I7 K n7 o
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5 }* J) R% ~, b: b& kend4 K" |* Y$ S- ]7 R3 b$ D! D8 h8 c* Q
( `2 ^0 c b4 nto update-credibility-ijl
! B: K/ t$ |. F2 s- S7 M( A
# Q% l& k1 n2 L9 q: k;;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 g3 r1 f$ t$ E5 Z
let l 0
7 w4 g: s1 M$ C% R% q. R2 |while[ l < people ]$ W1 e8 n1 |# U# H2 w& I/ ]
;;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3 _5 d L+ t4 ?2 n4 T
[
7 S8 T/ ]( _* w! \0 |* y+ |let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 v2 G$ o% M4 n! i' \3 Q' v# W& V6 B
if (trade-record-one-j-l-len > 3)2 g7 r# ]# z: P) Z" O+ d/ _( A
[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) n3 D/ N! A( D( }/ V: H/ A
let i 3
9 ]: z C2 s1 P. `let sum-time 0; y+ ?2 ~" s) f; S* I; J, Z
while[i < trade-record-one-len]. V1 m4 p A# \" O8 V. P0 P/ ^9 m
[
1 k* o2 v2 E x) K* p# M4 G- F; Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ X* g' K: h& cset i
2 o; [5 G# c1 P! }+ J% N: j( i + 1)
( @7 I# f4 x6 C7 H# D# I]
5 K" c' t$ B0 llet credibility-i-j-l 0- B! m1 d0 g$ k) E
;;i评价(j对jl的评价)
# e' \& J' J# V: Nlet j 31 v. e6 _" h2 e
let k 4! Z' o. D$ |- \1 f4 V. v. }
while[j < trade-record-one-len]6 D% p. |6 i$ D3 c
[1 p D$ m, }$ C) M c
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
8 C+ C' k% R" ~) T( S2 S" _! kset 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)
) X4 q" `5 W' t( ]set j
& M, h5 Z: a9 s6 Y( Y* Q: C( j + 1)5 |! l Y; y4 m. e
]
G: R# ?) M t3 S! D: _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 ))
6 C/ q, h; z3 Y1 h
" O$ {! i& S1 }4 r
6 Y2 K$ r$ o- ]: ?7 Clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) ?5 l0 x8 ?9 Z/ i* n7 y9 A;;及时更新i对l的评价质量的评价6 n; \) j# E1 C8 L. o
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 V: P% ^2 {3 i( K- mset l (l + 1)" F4 a G- }( `" u" s/ P3 @
]
5 n3 F8 E0 q' p4 Kend( X ^: r7 G9 ^" D8 ]$ O3 R; j% h
5 y) W" D3 y8 |" y6 u6 S% d5 Bto update-credibility-list" U) k# T0 c; e/ b$ j
let i 00 g; O) ?7 l- R7 D' j, a4 K5 h/ V0 K8 w
while[i < people]/ U6 I8 Y; h- S1 n" |! O4 W2 W+ ?
[
2 J6 u9 G: N3 E; nlet j 01 @* A) @5 G* _, C& x3 F
let note 03 {3 Z6 @; }$ K: c t' K# m3 R& s ~
let k 0
+ H( `- K. ]9 G) S; V0 S;;计作出过评价的邻居节点的数目7 K* H4 L( Y. M' \2 w, T
while[j < people]/ Y6 d s4 G) ]: L- j6 Y
[
$ i- h" G3 F) j. o! ^# w+ h. o0 ?7 ^if (item j( [credibility] of turtle (i + 1)) != -1)
- j, k* a. q7 T7 l! |$ r' L3 C;;判断是否给本turtle的评价质量做出过评价的节点, r9 O3 |, p) Y5 v1 s5 [- E0 u- S- \
[set note (note + item j ([credibility]of turtle (i + 1)))
$ i. w/ r8 o5 z. V8 _, Z. N;;*(exp (-(people - 2)))/(people - 2))]
- }+ Q9 e1 y0 m( l& G4 Z7 _set k (k + 1)5 T$ H2 M" y2 C+ d8 A" [. v
] E& G1 z3 U. i7 i$ B9 N" t$ U
set j (j + 1)
& |/ d+ }8 T0 q7 X]
8 A# W5 M3 o5 G! D [9 cset note (note *(exp (- (1 / k)))/ k)
' K* J, R9 P5 _; M Y6 c; Qset credibility-list (replace-item i credibility-list note)
; E {+ T) K+ F' V# m# Dset i (i + 1)# X u6 L* D, p! ]- v2 u. p
]1 D6 {9 a& ?& i
end
( Y. c, Z d0 @7 h3 L+ h6 _# q7 q% `9 J ^- j$ V- i- W/ @
to update-global-reputation-list! O1 v" ]% s [; C* n' S1 N4 C
let j 0
. W$ ^+ h) q" D. e2 T5 W8 Jwhile[j < people]; w9 A# |) u/ Q0 @) B
[; J5 s: a. t: E' ?2 j
let new 0% W+ j2 |! U) }+ O7 r
;;暂存新的一个全局声誉
* O* X8 n+ y' W$ T! [let i 0
3 W( f% {) D$ ?let sum-money 0) j& s+ W2 o" h0 u! c
let credibility-money 05 d; n0 m+ R! U3 ~. p
while [i < people]
1 z/ \1 t8 t. Y8 `. f[
% p0 x0 p8 B# o4 E$ F4 ]set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! |& B' @$ j! b7 U# M$ o
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
1 Q1 P D8 ~/ m2 ^. Wset i (i + 1)
! T9 c5 F7 Z+ k5 }8 P. t4 C]
; d" J! @7 n1 k! Elet k 0& k! C* g2 x$ _! e
let new1 0% G' j# Q8 o5 ^; c9 x
while [k < people]
4 x5 J1 Z# _2 j[
+ p s( k' r ~* ~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)
! H+ U4 ?' H L0 Y7 l7 U- o' d3 n$ sset k (k + 1)
" [. [% {* i2 `) q$ M* F8 o]
g W+ u' i% b8 A) s8 C1 lset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; r& a5 K- D, a& {set global-reputation-list (replace-item j global-reputation-list new)
( q1 ~4 i2 w7 \9 h! u. x+ hset j (j + 1)5 G% K6 Z. f+ [1 p
]
$ L/ z7 |+ V2 s# s2 dend
' U' e4 w3 C5 _. J3 K% G5 T" m% b( z/ c5 @
, G& F8 |, g' _1 I! g' M2 W
& i2 d2 ^1 f: |! ~- T
to get-color1 g/ J1 ? F- ?
1 z- ]! r5 `% c. oset color blue
! k' M! J9 N; ]9 Nend
) k- i; N U- x9 d8 }% f; S- k2 }5 `. A/ W! p
to poll-class
9 b0 H5 [2 v% e1 tend( W8 o4 B4 E( \- _" V: o
, Y/ Y4 y/ W/ F- E
to setup-plot1! i. T; B) z K& z t
3 M' r% b$ w5 \3 O9 t3 f7 F
set-current-plot "Trends-of-Local-reputation", n! [- z9 ~0 z
4 t7 Z2 B3 j6 d1 ?4 _+ k( c
set-plot-x-range 0 xmax0 o0 i2 U" w/ u" u1 j
% N$ Y% a4 X4 I/ t$ _4 iset-plot-y-range 0.0 ymax
! d; y; o t& u7 x$ g2 f8 Send
3 M- E; ]: R$ _! J
% U" M" |3 }% ^6 O& z7 yto setup-plot2) G2 Y1 t" S2 R7 l
! i. c* \7 i+ h+ z2 x# mset-current-plot "Trends-of-global-reputation"" t" g5 `" T3 P9 w8 [: t4 F; p
( l* N. h" S# u: _; H( ~ U) x
set-plot-x-range 0 xmax y& @1 N+ i& L
) K) D* ?0 `1 Cset-plot-y-range 0.0 ymax
+ O- N& T1 R8 o2 L+ ?end
; @" P2 U2 `! }9 E% t5 m, O8 ?& }/ y K. g0 S! S& S
to setup-plot3
2 H& E: o+ }$ P4 O" W3 |5 j5 h* q" c& d5 y- t
set-current-plot "Trends-of-credibility"
! @! x8 O) i9 v$ x. D
; e( v3 k0 G% } q2 A% h( T uset-plot-x-range 0 xmax
`1 C9 F; c+ ?/ `, N M9 c" a4 s% w
7 Y( j c3 C$ L: o) {# Wset-plot-y-range 0.0 ymax
; M6 B2 z* Z0 L2 p- Kend% f, ~! Z8 n) [: k2 z& i. X
, I/ e$ W" t( M4 w
to do-plots: g- ^& h+ R. D! q& m1 q
set-current-plot "Trends-of-Local-reputation"& S1 e/ g# K4 o
set-current-plot-pen "Honest service"+ a/ l+ i7 s1 R9 D; {: N: R
end! X4 o! Y- h, C- k) R. J* V! p& D- p
: {( t. l" i( P( Y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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