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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/ Z& j9 Q4 c& h) j+ A& g
globals[
) `" f7 Z1 N) `2 Bxmax
! O: l) m9 p0 G4 T5 iymax
_& {' ^; X6 fglobal-reputation-list
( M: y/ H. U, {! [. l1 n( _
0 k" A4 w" X% w# G# V" B7 R4 `;;每一个turtle的全局声誉都存在此LIST中
3 e, D( k9 s3 H( u: C/ Wcredibility-list
6 [4 K1 `6 w: S3 k) v; R& ?;;每一个turtle的评价可信度
+ S3 p( ?1 E) p+ n& ]5 x: jhonest-service: x) X$ d- r& U: o1 J2 n; k
unhonest-service! H% c: n& W4 g
oscillation
& d8 g( L, @" w$ p: V6 |rand-dynamic! s# |* K' [7 W2 I! A1 s
]
5 d2 U7 ]5 k& q% n8 j' W0 y' M" w% @- _; k
turtles-own[0 t# R8 A/ n' r0 ? N3 P! w
trade-record-all; m- `' A* O# C* [& w; {* l! X
;;a list of lists,由trade-record-one组成* V! L: ]7 E6 D" I: D. G' {# I
trade-record-one+ d! R2 [: j3 v
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# R {7 q/ J; v! J6 S' q( A; y* I$ J, @' j# h1 g
;;[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]]! ^: V- d% _$ z7 l' O
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]+ E: I- l7 x+ K3 r Y2 O
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 o! [7 {; q9 H8 c* u! Pneighbor-total
1 G% g8 K# |7 N; e( ?;;记录该turtle的邻居节点的数目; g5 d9 t; t/ S+ d9 k
trade-time
" N5 }6 h- X3 ~4 P% L;;当前发生交易的turtle的交易时间
- \3 O! u( k$ p4 ^9 C% Tappraise-give4 l% k! t0 e R' O
;;当前发生交易时给出的评价
$ u$ T. U: ^. j$ T* B6 X( K. Yappraise-receive5 u+ F. E) J: P! T- o3 C, n
;;当前发生交易时收到的评价
" X! B/ S- [4 f. N. cappraise-time# n! K( u6 R! t3 g. h. A! T
;;当前发生交易时的评价时间
# @; p( n2 [: _# Q1 }( ]. Ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ D8 D4 J% T% ~4 a2 K9 [( `trade-times-total) U) E4 y1 |: n
;;与当前turtle的交易总次数
' e2 Y. T7 R) B8 x! M5 ctrade-money-total
) a7 u4 V. ]; t7 D* t' }/ h;;与当前turtle的交易总金额
& W9 a3 H& m& G4 q; L% f! r# |local-reputation7 `- ?2 A! h4 w
global-reputation9 G1 F/ d* z7 c5 U
credibility
f# @7 G/ V" i; i3 ];;评价可信度,每次交易后都需要更新
; e0 J# N" B. j1 Ycredibility-all
/ S" ^) o2 z, Y' u: Y8 L" ~;;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
+ _' m1 j- {, e5 L) o! S- y' y4 j t( a; G4 T% Y) X7 A6 @
;;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, B6 ]2 Q% s# f
credibility-one
0 w' u7 x3 Y! e2 |9 C;;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 p0 n6 \+ `9 i- G% L4 X
global-proportion
7 @9 p, a* f, `6 A& X/ m! Ocustomer, d/ v4 d6 T6 B& p* N( E
customer-no
2 {, C8 P& y: z$ n3 P, C4 wtrust-ok* L1 l5 b. H& ?/ E' g7 Q7 u
trade-record-one-len;;trade-record-one的长度
b( w$ T& D- f, ^! c9 w]$ g2 [/ {/ Y$ `: t1 z3 A2 l
3 w( O' j; q6 s2 }/ j
;;setup procedure4 _1 l' L7 {' q2 P
# C( F- I# U9 F: q* i0 S' x6 ^to setup
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ca, |) N& `( t3 h
: \9 [9 S! I& S, b7 h/ b
initialize-settings( o0 N1 S1 u4 i5 _' T. `- r
2 p0 Y+ r5 B7 `7 o% [+ \ ^6 t0 \5 i& C
crt people [setup-turtles]; j5 i3 `! J2 P4 b
& t( _6 r2 |/ x$ X: ]reset-timer1 ]* C+ k8 ?% D
0 r$ ]9 ^% V) T4 N2 B1 r D/ o9 Upoll-class, E: X! m7 B% i3 ^. u: a
5 h0 ?3 F) F4 \! e% W0 ]setup-plots- O- r% y3 ` B5 v* L$ \( j
6 j7 c* u9 k: w, g0 X9 N1 C1 I
do-plots- Z, P9 ~# ^3 G* T7 v1 d- [3 U
end. r; U- R" ]/ @% t" K
1 K; u4 K4 e- @( }: R" I, c
to initialize-settings! p. K! F& k0 L0 j6 S4 m7 Y$ s
$ |# `* }; ?. y/ `3 Q' t4 jset global-reputation-list []
& W; A* o" M4 j; w# V* X, K9 S0 V( b) o# h' y: @: D
set credibility-list n-values people [0.5]% V& O3 E; W3 ~! r/ @' Q
7 o0 p+ b& R" }7 Fset honest-service 0
9 n- C3 O2 R; c2 j. n9 ?: a( J5 P I5 Y4 F8 l# [1 R
set unhonest-service 0
6 t1 x" _8 Z( { {# ?
! J- B- U5 Q9 ^$ c; Lset oscillation 0
. y% o! }0 T* ?+ t
- I; K7 d+ w+ O# Lset rand-dynamic 0 {8 i. D" P7 T. k0 \% b% b
end
. t3 [5 K, C% d2 e, u1 T2 b |0 ^+ c9 |$ r. b. Y4 j
to setup-turtles
, i r* n9 B7 d7 A. S( Oset shape "person"
& F4 G. N W! T8 s2 Z6 D6 Y" }9 Ksetxy random-xcor random-ycor- ?: z+ B9 |' C5 z* Q
set trade-record-one []7 o7 L' [6 R1 a- ]$ s
3 U# q: e# j, e. A9 ]% \$ iset trade-record-all n-values people [(list (? + 1) 0 0)] + S/ U1 ], j) i( ^, ]5 d
5 y. c& p$ J1 j4 N1 ~1 `set trade-record-current []. U4 W! {* y' f( j% Z }
set credibility-receive []2 J! P/ ]; h! t( w
set local-reputation 0.5% E- ]& V" ?: L& h
set neighbor-total 05 m F7 p1 G- k$ Z8 D7 [* E
set trade-times-total 09 k4 _ l7 q* g5 M0 t9 D1 s Q! A3 ^
set trade-money-total 0: u- [, E/ |, w7 D s* c! o/ V
set customer nobody W( d4 b8 E8 N! U
set credibility-all n-values people [creat-credibility]4 s: D6 `8 v6 w& l0 E: A$ g$ v3 _
set credibility n-values people [-1]
2 B5 }, E- r% {9 T* fget-color! a+ A I9 [! O( z
- J4 S2 E% ?" G
end9 b8 G; j, _, F+ p; D' c& A' U Z
' D# d8 G* x4 `$ _0 z! M* Jto-report creat-credibility% Y6 W! V- J+ L9 }2 F: h
report n-values people [0.5]
2 x6 E) r" W( u1 o% @+ Kend2 Z9 k$ ]4 |1 J9 S# X
# ~4 S+ ?$ ]. g: dto setup-plots
0 |- a% D8 Q* X. B; F3 j! d2 i6 E( q+ B* a5 b/ O
set xmax 300 \8 d) [. M8 D: r7 ~# u
$ U$ h0 u6 `; B* Q# dset ymax 1.0/ l3 i" W: ]4 L( @; @
) q) r; j) f, n+ a8 u! E
clear-all-plots
b. d! N' y9 _- ]0 W! \ s4 L7 P' k- Z# m# z, \$ o+ P5 r$ F2 p& }. Z
setup-plot1
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setup-plot2
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' E- }! Q- ^6 R3 Asetup-plot34 y$ K* z! ]4 ?0 g7 a
end
. A, Q, ]2 b6 E( l3 Q0 a/ K
) k' ~* J5 ` \! d& m1 {. v; t; |4 e;;run time procedures7 P5 {/ W+ H0 q7 Y! N6 s7 U
' f5 K* q1 F) L) e, L1 `to go7 ]# r/ }- t3 g' S
6 D; s9 g' Y. f w7 ?6 C3 a" @+ M
ask turtles [do-business]$ e: n4 [( P+ b) ^; Z3 s& ~7 Z! i
end
; l! j- g% `7 t! |2 [
4 b; Q. A: ^3 F0 z8 o& cto do-business
$ {" p2 ~: }. s: N- J- p4 \" @; G) q1 H. ?; Q2 b* k. s
* `- }2 p9 b' s: q C% x9 f1 e" f
rt random 3604 o1 S" L4 i) ]! a* A2 p
& Q* S' T! a5 R/ ]! l; ]
fd 1& s8 Q9 T. M% A5 y* a
" S, V0 D( g, D* lifelse(other turtles-here != nobody)[
9 v8 Z+ H7 V# S. k1 ]8 ^0 C- |7 V! ~0 k% \/ Q* Q1 R2 N
set customer one-of other turtles-here( L& N: \$ `9 b" [' d$ O
* [! s# ~5 Q1 [4 a& ^;; set [customer] of customer myself7 ~ h3 x3 c6 {
, P j2 j0 E1 w1 X8 r* t" G
set [trade-record-one] of self item (([who] of customer) - 1)
- T; ]2 Z1 x7 G1 V[trade-record-all]of self
2 d/ C) K- r& G" m7 I* n;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)( u& L7 x+ l- y$ f5 u
[trade-record-all]of customer8 W9 L( a9 A8 a n. _
[: \, i5 ^7 D- t7 Iset [trade-record-one-len] of self length [trade-record-one] of self% D/ x6 n$ s o7 V w
& w- e1 t% U- r: L9 u! d lset trade-record-current( list (timer) (random money-upper-limit))
# i9 ~- ?) G5 L: K
& `( L( J- ~% [ask self [do-trust]
- C$ x! ]) Z% m. `4 l* v g9 \;;先求i对j的信任度
6 O( T! F! L9 N9 i
/ P* K A/ b, I- K0 y7 J* q( kif ([trust-ok] of self)
; C7 S# }* z7 ?9 C;;根据i对j的信任度来决定是否与j进行交易[
( ^& z: b1 l) R% ]' [5 x0 p( h" Iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 ~/ S3 V( P! @: s0 Y5 s" u0 C
6 [ B5 d' T' T8 O* o1 w[
% u. a& o% p4 y. J, h& ?6 E9 r: F- O+ c' i' `
do-trade1 T2 q T$ p: b/ \) w0 f5 P
% s2 |% N8 g5 @' Q+ iupdate-credibility-ijl% I! M" x+ @4 l! Z
- ?3 X0 \; w" p9 ?
update-credibility-list
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$ x- D) i8 v5 a0 N9 K/ T7 k( ?2 E/ v' g
update-global-reputation-list/ G6 x% N, _* k" }) [/ M0 T
# Y- U2 @0 l- }8 ^* E3 K
poll-class
, R% Q% I4 f3 H+ Z( J0 l2 l# {1 C& H- [
get-color' {/ ?2 x% x z
: ?! k* O' z& I; o6 B. q( C
]]0 s0 { e2 G5 \& ^0 W
& b" s* y1 L. G+ U: r8 @, p;;如果所得的信任度满足条件,则进行交易
0 U) }. K" c, `; p$ c# g5 W) f0 |% F; i6 J
[
; ^; h4 {/ a2 H
3 g+ ^- z. k4 Z8 O7 hrt random 3609 ]: M1 b; u' ]! H9 e
% Z5 {/ D: g" m9 U" X# Vfd 1
- }' @" x" L0 P' ?& `
$ m6 Z' i4 \ l8 v]
2 f1 }+ b; Z3 T9 j- W8 ]7 r/ k V8 N
( G3 v7 z. n' J7 N, s6 y7 Hend: g+ @4 A/ f5 R
$ w* n' J. U& F+ N sto do-trust
; ~# l$ A6 b: h3 R: F5 }set trust-ok False
w0 S9 G p5 H2 w. D- X2 L9 D7 M0 U7 m, p$ p8 K
! M, L! V7 _3 ]& t
let max-trade-times 0+ A. Z2 v) }5 A; Y$ g9 x: u) [ v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! M% [' i3 | y1 u9 g2 g0 t9 W; E
let max-trade-money 0
( }; T8 ~: |$ q/ a8 Uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( s& n# ~& N' L. glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! N* _7 w3 I, v4 u, k# f
+ ]0 s0 o' }7 s9 L/ k- a/ U2 `9 j% h# n1 H; ~
get-global-proportion
5 A4 B# V+ f# N. A4 p3 ^* mlet trust-value
. j( a3 l& U1 elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list). ]$ F* ?. O- J6 V# v
if(trust-value > trade-trust-value)3 C5 ?3 y8 j8 L" a1 o1 g
[set trust-ok true]
0 K1 u& z! F; k2 q. h3 ?, Eend- M% ?+ t+ ~/ p$ P0 B" [9 e
! M4 y) w0 o: f0 dto get-global-proportion9 H3 C- a& o- O! x7 A
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 |# \1 J" D7 U9 H& ^& M9 [( T[set global-proportion 0]" X) n- h0 h. n$ w2 K* Y
[let i 08 }- z% R7 R, M% x' C$ ^8 P
let sum-money 0
7 E+ v( I" }- U+ ywhile[ i < people]
- L+ x+ Q+ s. W[
. I- c7 G: e8 Q$ B& W/ nif( length (item i# [" _. ?; B4 z5 [
[trade-record-all] of customer) > 3 )+ }% W; T5 F1 ]( M: A9 `3 F
[
, d' T! L ~0 g9 z* D+ dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- j* s' H; _8 ]8 u J2 R. a]
% T. B7 N. `$ v- G+ R8 t1 l]0 L1 L2 G: ~5 d5 T$ ?) f. x
let j 0
3 ?: {. W( ^3 {/ D3 r5 Flet note 0
1 \! h! I, ^7 n2 }4 E6 |7 M( wwhile[ j < people]. @+ ~( u g. i9 D Y2 |
[/ ?1 K) J7 Z" W& O1 J
if( length (item i, E: } S- G$ n1 V$ y2 e
[trade-record-all] of customer) > 3 )* P; N' O3 B3 k' y7 m
[
5 R+ g7 {- w( n, v" iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% L. t5 _- S1 O, F& n/ u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; y0 \+ q% {: Q' b% t, y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# X( L7 {9 D8 F]
7 N h6 g" D8 Q7 W' u]2 s' T' z1 j p# f1 Z9 o% S
set global-proportion note/ o- \; }( J5 I/ B$ o, @
]
7 V3 ^# U# ?4 a8 H7 B# V# tend
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to do-trade2 I: M% l( C8 n- E
;;这个过程实际上是给双方作出评价的过程" j! {! ^) S) H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 k0 w* s1 S6 P3 }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& p. j+ R( H, Aset trade-record-current lput(timer) trade-record-current
0 I1 S' u* B4 Q1 L;;评价时间
5 L; I$ t" E! ^( F; f [ask myself [' d4 i2 d* h& H$ `7 O |" M
update-local-reputation+ [$ t% X) Q( h6 j; @
set trade-record-current lput([local-reputation] of myself) trade-record-current; T3 O* P" Z. y) B
]- B' n1 H' Q( h$ U0 [8 r, O& d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ p5 X w( }% B" B;;将此次交易的记录加入到trade-record-one中% \6 i+ N8 r$ ?# R& h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 f) Q$ Q4 j5 ]# c# ~ rlet note (item 2 trade-record-current )
: r W# {. d- o; T7 a; z2 s( pset trade-record-current
- ] M& e5 l" o+ M/ l- l9 y(replace-item 2 trade-record-current (item 3 trade-record-current))) d7 k, `6 t- E' I& |
set trade-record-current
6 [: Z+ ^% X( _/ }3 O6 S4 H+ e$ y# u(replace-item 3 trade-record-current note)5 @, \3 ?7 N! I) J5 P. |' i
1 ~7 W- [& ?# B. w' Y2 i* L2 t; q
6 q5 T4 U7 B- m% {# U( d' E0 yask customer [6 a t% K4 ~ @. k$ O
update-local-reputation" w' f2 V( K- C# d, }4 Q) X
set trade-record-current& C2 l3 d# |7 L2 E7 _6 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ `% U" [& ^. M5 Q- {* t" t]
% Y b3 b" P1 O) V/ f
5 c1 y; k/ d& l1 V% s( W \/ v; p6 u* L$ ^9 r' j# L+ _8 K/ |* I
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 v0 a% \" t; G& |3 F
2 o2 q' _' x/ s0 Dset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 @4 z& ^ I6 Z) \
;;将此次交易的记录加入到customer的trade-record-all中
: L, n; ~; S/ {7 Xend7 b e" I/ g* |" d: C
9 M0 q/ B) Y8 Cto update-local-reputation
6 U8 f+ _7 E/ B# Z. Sset [trade-record-one-len] of myself length [trade-record-one] of myself% W) S( K8 U8 w$ k; t- ^# g+ n/ V
1 q+ P, f6 Y( e
0 z8 }: m0 }7 A5 ]( ~" \2 D;;if [trade-record-one-len] of myself > 3
) W7 o# x+ U" g) n# S' Zupdate-neighbor-total7 ^. N1 W2 ?# g9 ~4 F
;;更新邻居节点的数目,在此进行+ ^! F# x0 v: j0 X3 J2 B2 q9 r n
let i 3
5 T' G l2 Y' m- `3 Zlet sum-time 05 g- K8 K: u1 Q% [; u( |
while[i < [trade-record-one-len] of myself]" i5 w& Z0 B7 Z5 c
[, e9 D) O& f& p
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) R8 G! g( B. C6 v3 A+ C' Aset i0 E. V* i$ x) Z3 D
( i + 1)7 S1 X% {' ^% L; C! B
]
4 f |- w5 A$ r% F: dlet j 3- ^2 C1 _4 W, }% G- Q/ \/ }# u4 i) l
let sum-money 0
2 n; ~# h4 M5 _( \while[j < [trade-record-one-len] of myself]
/ g; _3 M7 O& K5 [6 Y[
6 G$ J& L1 _8 m" xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 k% g" j" \( q" ^
set j) F2 `0 A0 n/ o a# ?( R) ^
( j + 1)$ A# g/ h$ Y0 \2 Y% g! U
]
* H, i! J* [5 `+ O5 P3 I4 B% v* `' Ulet k 3 f* q& ]1 W7 e6 g K
let power 0) g5 c; T* K( j
let local 0
. e, |) |& ~* |( Wwhile [k <[trade-record-one-len] of myself]) `, L2 g* E/ G6 K- `# T5 G# c; _
[/ E7 O" X" H5 i y3 q m
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) % S" @6 G; ]2 y5 [
set k (k + 1)
! a0 i l" \* J* O" Y]
* f, Z# K- @1 Y5 h% vset [local-reputation] of myself (local)+ r' _, E0 \0 S: e# k; f j; l
end; ?, Q: T; \% z4 D: y3 ~
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to update-neighbor-total
1 U$ L; Q4 U# a$ d7 h9 x* i
2 C: j% f! ~1 ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 Z4 _1 W1 I7 Q0 h' _# e: w( B
& \. y% b0 e* T L% E$ m8 Q+ R5 ^6 g) [5 y) [7 ~% G" |
end7 O% z' }8 t; r. u# x: J9 f
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to update-credibility-ijl
n& {, f6 c5 K) Y
# p" Y @: {% w( ?$ J! h. F;;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。
" A" n' G p2 D. k* Llet l 0
$ ?* ?* P6 \, M8 t" Y Y4 gwhile[ l < people ]' o6 S& L5 i: g
;;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)0 g( E8 W5 G9 i
if (trade-record-one-j-l-len > 3)+ M' ~) y" C2 H6 z: I5 U3 E
[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
9 C0 a0 i5 ]& C! T E$ I6 glet i 3, U" w+ n3 K: V2 D
let sum-time 0
( [" [+ q0 V6 Qwhile[i < trade-record-one-len]: {4 j r; a4 {! u7 `
[- F# a+ z1 q6 H6 [* y
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 Q! Q8 o4 h+ S# yset i
$ W( T1 M- `% B7 c( i + 1)
Y0 ]& G! ]2 Y& \+ ^* `( [7 C" O8 {" f]
- |3 }0 Y( x' j+ o# f- zlet credibility-i-j-l 03 |9 H% ]. f( ^% Y v8 p( r" G
;;i评价(j对jl的评价)
5 N: T9 a7 c: D; [ j* t& llet j 3: s% v4 y# C* B
let k 4
% J6 n! ]" t5 x# d* T! Vwhile[j < trade-record-one-len]: B, o0 |2 x2 B# f& e9 u, u
[6 U. t. E* U0 W
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 H( Y! t1 n$ j4 b+ R3 n; E 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)7 V7 |) q+ A/ F' @& I
set j
) }: X+ D, \/ d8 ]( j + 1)
1 h8 _- S8 F# q) e' `]
8 j8 o" {* b! R# x* kset [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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# i1 z' Q% N7 ~5 s$ F; m! L1 s! flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" T# S6 l; _3 m% k* o1 v
;;及时更新i对l的评价质量的评价
. [( s% W7 V# ^1 s3 kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" O* r# j# t; Z R2 Q% _1 F; qset l (l + 1)2 [- b$ s, `7 t
]
( P6 b0 c l2 R- |end
9 ]% t2 | L9 h& @; w9 D7 L8 e7 d% v2 {$ T$ v# q8 k
to update-credibility-list
2 c( v7 B& r5 d) \5 z* G: O9 H/ nlet i 0. d. Y8 M; B# R' N# x$ _
while[i < people]6 s d! V2 z) K, b; {4 d' H
[) J) l+ y' A, e1 Y( u0 D
let j 0
4 @3 t9 z Q5 h# O4 C5 L2 klet note 0
2 \1 N: v3 b7 _3 y2 }+ j0 Wlet k 0
4 L( {0 J, m8 `! z/ o;;计作出过评价的邻居节点的数目4 i; u1 `8 E {& d4 d
while[j < people]: \8 {7 r6 G! d. B* N0 [- |
[+ I/ Z1 E+ ?0 r3 K1 [1 }
if (item j( [credibility] of turtle (i + 1)) != -1)
! v5 S! w* `5 n9 l. T2 S& S( ?5 D;;判断是否给本turtle的评价质量做出过评价的节点
+ @. u) z( x' L! B: j" \1 z+ \[set note (note + item j ([credibility]of turtle (i + 1)))
0 N4 O ?$ n; l0 a8 H, T1 j;;*(exp (-(people - 2)))/(people - 2))]/ t# }/ V! A9 \/ Y/ y8 H
set k (k + 1)0 B4 M6 o! ^: y' D" P9 |5 d8 M
]2 H: n$ _- I/ u9 _ U% a
set j (j + 1)6 ?! w1 V9 D% C: |2 J
]
* _0 G0 i, ? z$ n! vset note (note *(exp (- (1 / k)))/ k)
$ {: m6 T7 q( b9 N; Hset credibility-list (replace-item i credibility-list note)
, m5 z V4 h3 t- kset i (i + 1)9 [4 D7 ?9 U) ^, I- o3 X
]8 w$ [! `# }1 O4 A B% w7 n
end; L8 ?) j A$ z" D, t
5 d3 [& a; X, _9 J4 m
to update-global-reputation-list. U8 q, [0 B. L$ ]1 b& Y+ x- k" b. e. @- e
let j 0, I" B* a4 R; v, p
while[j < people]
3 y' U) k( C: p }- h. q( C+ v[
4 \9 w# q2 e& slet new 0
! v( @# d) e2 C;;暂存新的一个全局声誉
8 K" W+ m6 o q o- T7 L7 A! D% Rlet i 0
; t9 V$ Z) x: r( n% U. Hlet sum-money 0 X- k# P/ D! D# B% d0 T7 a% E
let credibility-money 0
1 c4 `/ h+ u, }6 b Y" kwhile [i < people]
Z/ I' y2 s: {3 s- Q[
$ p; y9 \( l* ^6 U) Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( v r+ }5 d- q. I2 [, ~" I
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; x4 u) ?) C; q& v+ @set i (i + 1)
/ }& [5 Z1 |. i6 |! H]
* a) p+ ]2 G" t* @/ z4 C( Zlet k 0: C2 A5 O' e. {; A4 W( O6 j3 D
let new1 0
4 l5 q m) y9 y* _* V# \while [k < people]8 Q% i# ~ `. w& ^7 \+ W1 E
[
) d5 g0 K5 z+ n1 Qset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
+ o4 w+ z' |( mset k (k + 1)
; c, g8 c+ q5 q) N( i]
8 g/ C# u4 D. J, \$ ~% {9 w6 ~( Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" Q6 B l& r: U& I9 I6 Fset global-reputation-list (replace-item j global-reputation-list new)2 P# P9 x1 W8 z% P+ t7 S
set j (j + 1)! Q- G' R8 ^& r$ e* T
], U. p4 x# u/ ?. u; _: G
end2 h {9 ?$ c4 s3 l+ L/ l
7 F, T# d1 S. ~# C- Q. N
5 C( i7 q8 N- `) E/ T4 a2 }. I; t e4 }+ |2 b
to get-color
1 \% S9 A; K& P; b0 }: J' F; I; j! H0 b: m" g, F
set color blue
% z5 s3 o! J# A9 vend
8 r* g, O' t% m7 ^0 {
* H$ l% }" a8 y# e! k/ ?to poll-class7 `3 ^4 ?0 ~) w
end) s, \6 i) Y, K
1 ^, ?4 M- @6 V; _to setup-plot1
: [: _/ `+ ~: i4 j5 D
5 U1 u c* v1 U9 Qset-current-plot "Trends-of-Local-reputation"9 |2 W% v9 Y; G/ F6 x1 ~
+ y5 a3 k& M& S9 o% O& ?( H1 I
set-plot-x-range 0 xmax
* \) B$ u9 V7 y8 f! `8 x1 Z
% }# h! C/ n% ^- i% H2 Cset-plot-y-range 0.0 ymax
5 z) b$ O$ b! Fend" G W( u1 r. n# a% i* D
' x: }3 _' v- Q, u/ P- ~
to setup-plot2* X8 n5 C+ W/ x. }3 P
& z$ U8 }; L! T+ W
set-current-plot "Trends-of-global-reputation"
0 Y* J+ V+ [5 V$ C) k. G" i8 ^5 x$ Z y$ y5 E$ n9 y" m
set-plot-x-range 0 xmax9 q- @# b1 Y' ^. O4 D$ c
- [$ Y: V9 Z; h. p8 u0 [& ]
set-plot-y-range 0.0 ymax! Q* f: L* U/ P1 q. k! \
end
: @ f7 d* \, A; \! U \) ?/ E& O' U
to setup-plot38 f1 h3 h* k' R; e9 ~- h
4 k" U7 p" ]! G0 p4 _
set-current-plot "Trends-of-credibility" s, N: W8 ~- w- ~9 C+ n( ~1 o
$ a) Y9 Z2 y4 W; P8 n- i- r, C
set-plot-x-range 0 xmax
% }: _0 t* D6 k3 G. n6 ~" i, U6 C8 @* z) G
set-plot-y-range 0.0 ymax0 X# Q6 b/ c' s7 E
end+ I3 d& I+ h$ O2 @- @2 v! u: i1 j( D
, b" k5 S2 c9 E/ ^, Q. T$ Sto do-plots! o5 J0 {8 L/ k
set-current-plot "Trends-of-Local-reputation"
0 ^; G% P4 [) Q; qset-current-plot-pen "Honest service"
# B' Q- g5 p" J4 K" T- k6 K0 zend
2 ]% x% e& g$ f6 W) f3 t5 ~, x0 Y8 i9 m8 u3 a- b( U( @/ v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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