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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
* f" u, K( r9 [6 j2 ~' H/ Oglobals[
% f- }' M3 N8 ?2 e8 Lxmax8 ?: B. E2 v# N
ymax- u* |0 z4 @: l' p0 G$ g* b
global-reputation-list
+ O9 A! ~0 t/ m3 T9 {1 \0 [# A& q" F T, ?# O4 b$ D$ U
;;每一个turtle的全局声誉都存在此LIST中$ Z1 C, }3 A: \; S2 O
credibility-list
* L& [0 F$ e' {4 r+ S0 o+ G;;每一个turtle的评价可信度" X8 e9 M8 B" `, L( i
honest-service
) n+ u/ [ x/ f) M' Munhonest-service% x/ [ t3 K0 r/ G- }" f$ B# A
oscillation
6 w; J. [ {/ O) E/ zrand-dynamic
+ K% z; ^1 u4 y$ o% w" c]
5 w* R% v& i- I# M# o, p( B' e9 X5 ~$ y3 n7 S- h; Z3 L4 M' `
turtles-own[
# R* c) [: g8 x' q) ktrade-record-all n+ o( x& g6 H" }# X" J+ s5 n" p
;;a list of lists,由trade-record-one组成! F9 s% r" D8 X
trade-record-one
" l" X/ ^+ [2 ^: ]) ]$ t;;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 ?7 O8 i" b( e$ @8 N# W
0 M0 }( S/ X' Y$ J @4 {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]]& B x: K( C- B& q; W# b
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]
" x C8 Q9 ^% [ N9 K' [- jcredibility-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% h! K& p2 m% I4 V3 R! `4 V% S( C
neighbor-total
$ u* X1 \: a; K% Z/ ^( p& q;;记录该turtle的邻居节点的数目 x5 ?6 H9 a$ }: U% Y M& ~4 ~* `
trade-time7 n2 _3 F. ~0 |
;;当前发生交易的turtle的交易时间
5 e$ S& H- A, M6 ?. cappraise-give, N" ^+ R) l" `2 K: l: s
;;当前发生交易时给出的评价
K; ?& {1 f# K: l" Kappraise-receive8 S2 Y! L( [/ P8 q1 d5 X9 Q) I& C
;;当前发生交易时收到的评价
: }0 p4 T' K, O' L7 {appraise-time
/ L) |4 o: B" X, N+ N$ n' F;;当前发生交易时的评价时间
' o3 o" U! X. @5 \. `8 @) B$ P. r5 ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉( \, t t9 z( S, ^% D
trade-times-total7 B" ~: f5 l2 b
;;与当前turtle的交易总次数
1 I3 c/ U% j7 T# n" { Etrade-money-total% l- q; c8 H( z+ o
;;与当前turtle的交易总金额
( I5 | u; H6 o! S4 I% F6 Zlocal-reputation
+ ]+ [* q+ ] v7 [( _global-reputation% E4 Q/ M: X h7 M3 O( h1 {
credibility
0 W) J2 }- P& N1 r; C8 V# g" S;;评价可信度,每次交易后都需要更新
+ \. K. n( ]8 ~: Ucredibility-all( o# ]- i% a5 g2 y9 W( J+ @
;;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
4 o' P) z+ @) `4 I; s, ]& k l1 ] |3 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- b; h! ]% [% E0 L
credibility-one: Y/ V4 X. N S! O2 Q3 q# N0 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
! J T3 T0 D" l: u; Qglobal-proportion/ g x% q3 Q1 Y* P) H" ^
customer' y3 A' S' g1 \# n" S' ?
customer-no
$ a/ K6 h. [+ u, J3 B+ T2 P( gtrust-ok. Q) I( U0 U6 G' F5 H
trade-record-one-len;;trade-record-one的长度. Q1 y% E) a0 K
]
c* p" l! T H. t" ?% ]$ l
. {2 R% R0 l% n; g* Q8 h0 L+ j# E;;setup procedure
5 E; v$ ?5 G5 a( Y9 k5 y- F6 }
9 q( |( W2 e2 Z% L) O/ l2 ~5 Tto setup
2 D% Y8 Y+ _ @6 o. p4 V
) C6 U+ g1 V2 b3 C4 s, zca
2 p! T/ o( a2 b* ~$ c. c8 `
; Q6 A: _) @$ L8 o0 f- u! tinitialize-settings" K0 j2 i* d5 g0 i# i* z1 L" }
Y# C8 u, B4 h$ q" k, Q" \ O
crt people [setup-turtles]' }5 N, ^8 h% {( X' t
6 L, I) r h4 \- S8 s) ]& i
reset-timer
9 r% E2 H8 Y/ C! K0 Q
4 f1 k [" P- dpoll-class
: m- r Q1 W; W; l5 c3 W/ B
; F; g1 L! s$ O; y0 o# [/ y+ osetup-plots/ `1 p5 R% M3 [1 G( Y; U
5 X7 d' P7 Z# ]' Z$ X. d3 z2 Y
do-plots
& s- k% X0 w5 B& lend
) a" U3 M2 l7 F1 A8 }. w* X* j3 }- v: F' K( x0 C# D: r2 B: J
to initialize-settings# \' D0 y, _/ [; m$ f, u' T( j
1 b8 f K, b! Y( W& P* w
set global-reputation-list []
6 j3 u; M# B, p4 N1 I5 r# M; U
$ I1 H, Y0 H1 `2 W1 rset credibility-list n-values people [0.5]& c1 }5 Y u& C/ N" _
9 V/ w9 n8 M$ w3 w0 _ xset honest-service 0
: M# f+ k/ |2 v) ~, S( {1 X1 F# X2 g1 A
set unhonest-service 0* j4 O2 a1 @5 m, x" U
& c; F6 {3 ?, j% o1 g$ f9 x
set oscillation 0
# ~, a5 p* Q+ a" y' n+ N$ Q! q0 }; X7 K7 D# u
set rand-dynamic 0& v; ^" z: D! v J' W9 {
end
& Q/ h5 r) |# Y, I3 R) D7 R/ T2 s( Z7 _$ J: C% g }
to setup-turtles
8 D& h( e9 p# ]$ R8 a0 `7 Q; \$ q% Aset shape "person"
8 C+ s5 M: x( m: f% r9 |& y1 }! Gsetxy random-xcor random-ycor
: `# H+ ^, r6 i" Z g/ o/ Gset trade-record-one []
, } ~8 G+ c; {! A; P# Y) C( t) R6 K
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 C* s8 R$ s7 G# n# J0 g
6 u9 g) s+ @" E1 S; W* S6 i# c
set trade-record-current []
9 {+ P% r: \3 J @- Kset credibility-receive []* a8 ?. `$ }8 c2 w
set local-reputation 0.5
# U' r! @; x5 k3 k7 j- w4 s9 @set neighbor-total 0 z; y) W+ x6 _; f
set trade-times-total 0
7 U+ \! z, e" M* @- U1 {set trade-money-total 0
+ h& T. L6 q3 b n& h0 g/ zset customer nobody
# v) |0 W A$ q1 V6 yset credibility-all n-values people [creat-credibility]- h1 x9 |8 j& N, F
set credibility n-values people [-1]
2 X& V: O" b, D3 y; Y# K) [2 W6 Jget-color3 `& O, ~5 V% ]4 c) o K# ` ^
7 T! L6 p8 i* }" Iend
\' j, E+ X% t0 r+ D9 a( Q
8 ?3 T! A* k+ ^" j# \4 i. ?/ [! Eto-report creat-credibility
# i& [ Q. A8 I D# S0 ]report n-values people [0.5]* N+ z! `7 w D4 c" G0 O! z/ `. l
end
( Y$ `2 `! z. X1 O j/ B8 o: G3 A( C
& L: E% R: u, [- Q1 Zto setup-plots7 Q! O) `6 D8 `9 i* j8 @
* ^7 t7 L* G* m
set xmax 30
' [0 f2 V, @8 z( C+ v) a+ ?# k$ q. e! q! C4 L) B2 Y
set ymax 1.0
( |, ^% `! x0 t8 n9 B1 B# c' f
" l4 H7 x3 R- cclear-all-plots
7 x+ e8 S7 A0 k& v- \5 q+ R! l1 w# X# j9 U
setup-plot1- I( q4 [0 n4 A% I6 ~" s; R
+ q% r3 m! j+ p4 \/ I7 r9 E# M
setup-plot28 ?+ [ e/ P8 M$ E& g
* }. G0 _0 M, y+ Z; T$ }setup-plot35 g0 j" ?# u# T6 N: z
end3 M" ?3 b5 |* {- ]0 X2 U
% V& g3 ]& g5 {" h0 \+ Y1 h;;run time procedures' u4 K9 H. ~, h9 \9 `
1 w1 q3 X# X5 F% v. ?& z1 G
to go6 I- T k! _% n' x: N2 q
: X, _$ z: B- Y) J. y
ask turtles [do-business]' [* f5 E. K# {
end
$ _ N+ |/ T3 v Q+ a
$ y7 w& q9 n5 a& Q& } y9 X) Hto do-business
" x ~- H8 }. I3 a E; R. Z0 E- ]) v0 U @
6 J* f; }0 S( krt random 360
/ c% }3 d# s7 ? d P+ {( O4 Q* x8 D9 _( g) y' `$ J
fd 10 s" i$ H. S8 `, Q; G( P- F6 K
' C a4 b1 X, ?- z' v8 G/ Lifelse(other turtles-here != nobody)[
7 \; _" L6 q! R; V( K8 U
+ Y0 W7 H6 G t. _. vset customer one-of other turtles-here4 `4 l0 q( C% j1 u O* `
4 p5 A( @0 V1 z2 J, F# }$ o! o
;; set [customer] of customer myself
+ j6 l Y( i1 H' w5 z
8 B# I4 a0 ]3 n9 s% a- p! Vset [trade-record-one] of self item (([who] of customer) - 1)
# `9 i7 B; [/ H0 s' s0 T8 Z; w2 f[trade-record-all]of self" U, s! y5 h: p2 b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* D8 \& i# G; t' S4 E
$ e- @% }- c: v5 F, A4 P4 Eset [trade-record-one] of customer item (([who] of self) - 1)6 C$ R* z/ Y+ j% [
[trade-record-all]of customer
# X3 @4 y# }$ W3 ~1 w- c
4 T3 L, x, ^; f$ zset [trade-record-one-len] of self length [trade-record-one] of self
8 k, q7 k6 W2 }1 }
# w" A+ a6 G" J/ S# @: ?2 H& Tset trade-record-current( list (timer) (random money-upper-limit))0 ]' N) S6 V' n! N
: U; b1 F W/ |9 I# q: Z/ t2 Q0 ^
ask self [do-trust]
: S( c5 ^: ]& C3 _0 k3 R;;先求i对j的信任度
' k( g2 T7 l/ J6 C4 J1 h. o9 \# O/ B0 @& Z/ t7 h
if ([trust-ok] of self)
0 s3 z) A# a: [2 a+ U. j @;;根据i对j的信任度来决定是否与j进行交易[
r$ o; t6 W+ s- S, N( iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ {* Z3 x. C# {+ Q9 H
6 O9 ^, _ s4 U. f
[
# C* `; [5 h( F6 H- H1 c5 P
( o5 b, e& x% Cdo-trade
* P2 w# | ^- B( h1 g: Z; ?9 i) n# P4 V0 E. E1 o5 R1 Q/ V- `) \
update-credibility-ijl
1 T2 I w1 e0 g
* V7 N. ~( C' T! F( }update-credibility-list* v5 x* W) H0 A% z$ L+ M, @3 A; j
9 J% i1 y( @5 n6 O1 i
& y3 r& g+ V6 `& h5 o
update-global-reputation-list
0 l" {* n4 d! @
9 z1 S5 r: h2 o& G! jpoll-class
" U3 c7 n/ K# }9 P4 f, O" t; q9 h. v7 t2 v
get-color5 Y& _# A e# Y% x' a
7 C- E! e6 Q( q$ f2 }* g]]
; w: }" q4 p- W. P0 \1 W# n0 T% _' W& U/ |
;;如果所得的信任度满足条件,则进行交易& m! h' \, V) s/ U9 j
0 r! \' k% R! _. q
[; J" S) |6 T; e' d% q/ k: U4 C
% c& y& s9 @; J
rt random 360
& e- l0 U( Z+ Z$ [( [$ A: j8 q0 ^4 A+ [% T. |3 f2 G0 I+ [" n
fd 13 k+ I5 P: E1 A3 Y& |* r- L |& D* |+ x
) o/ P! N8 \; N4 G' f
]9 n* @3 }' o1 u } l0 J( J
- B) \ v5 r {. B5 t( _& y7 H
end
* w: S+ J7 O" g- z; B5 Z2 p5 K8 s6 e7 F# _0 F
to do-trust 7 S; K1 }7 ]) @. Q
set trust-ok False
; k( J9 u- Q7 |6 M H& A- p
0 d* N- H$ i ?" u: ]9 S- `0 x! c- n& v) E/ o# S. t
let max-trade-times 0$ S* V/ n# o1 k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- D) ^, O( J5 }% Dlet max-trade-money 04 ?4 v) F0 ?3 t1 O0 }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: @7 l" W, R* |, rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" Z3 E7 r2 r5 c& f2 a* F
& v5 k( G/ L; m$ X7 x
% Y( X0 b, d5 u6 p; Nget-global-proportion6 d3 T3 a( G8 T
let trust-value
+ Z/ o" P @$ a0 m. p/ alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
/ `1 z9 ^9 w. J5 S9 m4 J/ Bif(trust-value > trade-trust-value)& b# n. U8 j+ ~5 [" j- _, ~
[set trust-ok true]! O0 R/ I: T! A
end
% t& u: i: o9 A. ~9 ~! k' [7 d
2 m7 n# l, m7 L7 @) Xto get-global-proportion
. g+ f9 q) i3 i4 E1 Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ g9 I* S8 ?+ o" v5 {* S% z6 }( O+ Q[set global-proportion 0]
% q8 U8 f/ k% A& Q4 Y* j[let i 0* ^1 D, z' Q! |# w
let sum-money 0, O' h; v% T W' [
while[ i < people]
' b" |4 y* S. i2 a `( `/ I; L[
% c1 x( A: K% P$ rif( length (item i
2 M! `: ]; e# Y- {[trade-record-all] of customer) > 3 )
$ X: @# B2 R( K2 K* S[
. q, _, O; P! C* Vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ s; X7 r: G; X" d]
' M; {, W, S9 P1 \$ J2 ]' p/ C' c0 b+ s]
# }, f* Y P$ P8 d$ P$ f% }let j 0
0 R. f% O; U) Z7 O f0 clet note 0
/ q6 [& H# C# |6 lwhile[ j < people]2 _* ~5 P( G- y9 r% a! }
[
( @1 }: A# M) X! D$ P8 L+ @7 P: g/ ~if( length (item i1 [: z& [' k& X# B1 v
[trade-record-all] of customer) > 3 )% ^1 x) c, n( w$ A
[
/ @- @5 r3 p/ N" pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 C+ q; P( r- k' l[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: N1 T8 H( R# y2 \* J! ?3 ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( P3 ~" g6 I# x- L! _% E
]
. Z' q2 Y: v$ _* s; U* a y2 t, R. k]! C; [5 }% ?% v" P; G
set global-proportion note1 N$ k8 i& |, [! M( C- {
]
' g6 L# j; L5 v+ V# ]/ l2 dend8 V% Q: l7 r8 C0 V- N! ` n
, l; q8 T0 K& ?# e5 B+ Zto do-trade
/ b0 u3 P' ?7 d;;这个过程实际上是给双方作出评价的过程
- B# h3 K% y0 W: i$ B5 T/ a; Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 N8 L$ b9 W; f% M" v" O; G& Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% V, Z" c) |5 ^6 _set trade-record-current lput(timer) trade-record-current8 s$ U. q) v; N8 p
;;评价时间
5 E' R( Z }3 ?1 ]ask myself [3 L" A1 d1 [- J
update-local-reputation
2 P" |8 v8 f8 W: ^: F( Yset trade-record-current lput([local-reputation] of myself) trade-record-current7 r; k/ M$ t! m( @
]. i5 f5 d0 H7 t
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 c% w; M, T- c8 `9 j" o! h+ P;;将此次交易的记录加入到trade-record-one中3 W& A0 f* p6 ]9 W- A5 C
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 t9 Y8 q: _9 E' a8 ~) ~let note (item 2 trade-record-current ) k) @* n, T# N% \# J! ]
set trade-record-current7 r) M9 f7 A( I. j
(replace-item 2 trade-record-current (item 3 trade-record-current))/ u9 c8 W' a7 s2 @! H" z$ i
set trade-record-current
" Q) A0 q- q5 w(replace-item 3 trade-record-current note)0 @% H# m# f7 {( s
9 \! h1 m1 k, H$ J0 O
6 x- g2 v7 u7 j3 I' C; o. }& sask customer [
! l+ P5 H* n/ a5 t! aupdate-local-reputation
' B }( Q- t! O. ]3 w% u0 qset trade-record-current, w$ ~) Z6 q4 g2 ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; ~: [/ ]2 k/ H) J]
* }. C# x1 u1 X4 G4 y- f: D. U( ~. f+ n. G q }
8 b1 y# X% y) k8 B) @& Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 S3 Y2 C- i6 A$ p9 e2 j
, C+ y4 Z1 f& X5 T% d w. tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! S" i5 R! |2 o& D! `
;;将此次交易的记录加入到customer的trade-record-all中
1 `: I( K& e& S2 V/ B, Eend
7 u/ x3 c2 |% e
8 G! q" C# L- W+ eto update-local-reputation* ~0 L# I9 y0 M; Q6 W7 t3 m: k5 v
set [trade-record-one-len] of myself length [trade-record-one] of myself6 P) T! Y; O0 u c5 \& i
. m) h- n6 z2 Y4 X: ?: ]
) A* k6 C& Q( M: [9 b1 a% ~;;if [trade-record-one-len] of myself > 3
' u4 N. @$ p. nupdate-neighbor-total; ?% k O* t& Y# {% M" O3 X0 Y
;;更新邻居节点的数目,在此进行. l* w! ?8 g4 B& Q8 y
let i 3# K5 \0 m: }* g$ x# F8 [5 A1 p! {/ s. C
let sum-time 0( ~5 Q! c8 p+ ]
while[i < [trade-record-one-len] of myself]
% M/ ]/ i5 W# V" e! l+ o$ k- W[; U% |- |( ?. c8 V+ X" }( h+ z6 g& I' c
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) }! s8 k0 y( k; j6 j& U* d6 k. vset i$ v/ B2 B4 X' g; V) |
( i + 1)
* F* A. B$ c+ M]8 n4 M* X# {) v! A0 }
let j 33 l9 ~" w# q, g& X, }$ m/ s3 P3 w+ V5 t
let sum-money 0
' W0 H% R8 {0 F( mwhile[j < [trade-record-one-len] of myself]/ U/ j, H! U3 Z4 U+ _' d" F
[' C4 k3 h1 y% F1 b- I* f
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' Q2 ^& M% xset j4 D8 H0 ~0 q1 @1 d8 q2 n* t
( j + 1)
8 W0 O8 t6 {- ^]) q- g4 S7 }2 E
let k 34 m: @/ u- K5 F5 [8 A( O
let power 0+ [; A- n6 R3 z- K) ]1 i5 a
let local 0
& _: t) }* ?% W! iwhile [k <[trade-record-one-len] of myself]: N- s; J4 k0 {/ m' E: L
[
7 @3 ~1 l7 u( t) g. n; ^: oset 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)
# P& U4 u& E* |: F, z# n- {set k (k + 1)
/ T% A0 x) q a. b# N3 G1 T]
0 D2 [* E2 [3 c: cset [local-reputation] of myself (local)! b* w7 t0 q- v; V& M$ V, b. p
end
! o4 P, S9 H7 |' f. e
0 a$ l6 P0 g; l) P5 i% a# M; M8 [6 Ato update-neighbor-total& i8 B% j; p# }
0 Q4 X& x0 [ e" u+ Q' k
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 V2 [6 g% P G! y
; ]- o0 o, P' M! U8 K9 |3 x7 T
( b. C: } B" @+ q6 k4 j) I1 D( uend
3 X7 p0 @% F: h
7 h1 A t1 ^/ y! y5 O# cto update-credibility-ijl
1 x& _, w; H( e; l5 p6 ?0 u/ h& O5 f5 M9 Z* ?
;;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。* ]1 u: j% R$ A4 K! T j% l L( G
let l 00 h; X b, g# h4 H2 [
while[ l < people ]1 E* y" E+ \) 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
; W* ?) `8 A+ g7 K( L& E4 W) y. @[
7 w% L" h! [4 I( @5 Olet trade-record-one-j-l-len length item l ([trade-record-all] of customer): X3 N+ y. G& P9 ?: W
if (trade-record-one-j-l-len > 3)5 _# a; E3 T& S; p1 w. V; B
[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
, ]( o) Q3 l8 I2 x- n F5 olet i 3$ t6 o) B+ L- G. H5 _ M- p% p
let sum-time 0$ d" A3 G+ d8 N1 Q- x* k
while[i < trade-record-one-len]
9 M2 N7 n6 U( c5 y* E8 f[
8 s$ }( v; w9 _: k+ Q- q* eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 }* l3 R# a! Z! iset i# ^& t+ I! ^; T6 [
( i + 1)
2 ^( b* ^: f) m# @6 u% C]* r( J. z8 S1 }6 y) z4 O
let credibility-i-j-l 01 E( j S6 p/ q
;;i评价(j对jl的评价)
) l# ^ ?* T5 n; l" l: }2 Zlet j 3
& j# j3 D8 F2 ^# t. G, M# Alet k 4
" V4 G6 Q% Y; F( N1 [0 G2 Iwhile[j < trade-record-one-len]/ H3 j' U- H8 U7 c m1 g
[- ~' x: ]" b; {1 [* h* h/ Q6 o
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 F5 c, \+ c7 Z! W0 \) R8 Yset 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)
6 t8 P' h1 ^( p" f/ l! Gset j
! ^/ s2 P4 ?' x5 [( j + 1)
5 i6 G' ^6 ?6 a]' M6 I8 O8 Z/ K( v7 s
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 ))
2 ^% \! r& S- e$ W
+ [$ G! Y1 p0 d/ s1 X+ Z6 C4 t# a/ }! x
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 V6 i* x5 Q4 x, H2 W8 T: K;;及时更新i对l的评价质量的评价
8 i1 _, K" x2 Y5 l Wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; A7 Q5 r" I% \; ]
set l (l + 1)
% M& ]) \ q: O]; H4 N6 o" m: f
end
' w7 u. C7 e0 O& {0 M; J {& \$ t: f( K3 X0 E
to update-credibility-list) O. r V) L! F9 I; u# `! }
let i 0
4 u% x; Y/ A& @5 C: ~$ ?while[i < people]
( P3 `! O- q* e[
0 i/ O/ _! z. n9 O9 Glet j 04 [% F) ~' T" m7 Y8 h! y& a
let note 08 @. T/ X4 o7 G
let k 0
# i2 K- w7 q7 Z# b+ }4 F) H;;计作出过评价的邻居节点的数目% P4 L0 E" o. d0 H/ y7 E
while[j < people]1 `! T9 d" j$ j; U' M6 I
[
1 {& U" C$ g4 j. e# Uif (item j( [credibility] of turtle (i + 1)) != -1)
* W2 x2 N+ l3 y5 g+ g" ]& L;;判断是否给本turtle的评价质量做出过评价的节点
6 @ R9 s/ B; s( C4 y) ?) D[set note (note + item j ([credibility]of turtle (i + 1)))* H6 A) O' `; F' [. W' E9 P* E& ]
;;*(exp (-(people - 2)))/(people - 2))]' S( H4 a6 E& F: O
set k (k + 1)1 N6 x! \8 d* i' }
]5 H J1 F8 ]* f# W/ q' E) R% j
set j (j + 1)# h+ _1 B5 p6 G. o( C! d# g
]
: q$ {7 R5 Z+ U5 [6 wset note (note *(exp (- (1 / k)))/ k)* o, z0 e) {' ]% u4 N
set credibility-list (replace-item i credibility-list note)
4 ]% X7 W+ O% @set i (i + 1)1 N( ]! Y! e) Y; \
]
' K4 ~3 N6 N& F3 ~1 ]end& A1 B: w- J) t( n
' c2 d/ ~* b' u2 X
to update-global-reputation-list% p: P/ s6 s/ j2 {! P) L
let j 0
' h; b& l- H. @3 y Q9 T2 Fwhile[j < people]
2 ^4 V) Q9 }. n% \6 r$ E# i \% o[
& G& J. p8 d, e/ N3 ~9 k% slet new 0
* j& ~6 D' s( `6 H/ Z2 w! R. F; J;;暂存新的一个全局声誉8 g8 a3 D t' q
let i 0
4 i% d; L0 u; ~+ ]1 Z( n! J( flet sum-money 0 P% O3 t8 M' o6 q
let credibility-money 06 P* ]2 Q& w, ^ q" I
while [i < people]: s: d8 b/ c6 J1 q
[
. A6 v* B/ T6 u7 \, ?5 k; w0 ?2 Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 S0 a% r5 }0 l; ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 v, }" M9 X) b# e4 x0 V2 i9 O
set i (i + 1)
. H/ \- d' k, W4 d]
: m5 m" ]" F+ _0 d4 tlet k 0
+ I5 ]0 A) Y4 t. Z5 g$ ?let new1 0% q' b/ O1 k4 I/ }8 t
while [k < people]
( i4 Z- y6 u8 I/ }8 |3 H0 w[
" c; @9 [. K% W3 Y% x/ j1 Yset 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)
3 K! ~% C& H9 Jset k (k + 1)% Y8 o- o" a1 d' R2 s, {
]/ \9 N; p: j& z( P1 u1 T/ X6 ^( {
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " f2 V5 v, ], ~$ d8 z
set global-reputation-list (replace-item j global-reputation-list new)+ E6 i) o' B' N! ^1 ]! |. @. F
set j (j + 1)
; m. C2 M* d: E, J C$ }1 h]
$ ]. e& u) p* z7 nend
, W' j) H2 H& _9 P0 I' T
: H0 C7 Z! ?0 }( J, g4 Q- O4 @ b! ]5 H1 a
/ J; I4 ]8 A# ~6 l9 d5 C7 Oto get-color1 j6 [3 J& t$ U# I, p, q. `
% \; N4 \. w% C1 Z. Y) I) w) c0 Wset color blue
3 o/ c! y2 w' w9 Rend5 i9 G* u, T+ F) Z* X
# ]; g& [* r+ {" d3 Q! Qto poll-class
5 d7 O: Z9 F2 g, a! S4 Jend" c/ a6 l6 H3 w
! p# L/ ^. S! u% [9 ^6 V8 G) Z
to setup-plot1
! L7 u: k4 F& p) J4 x( y( n
( U" L) ~9 k% b5 E/ h. rset-current-plot "Trends-of-Local-reputation"- ~; V# S7 V7 S* t
L5 [: ]5 S r+ `
set-plot-x-range 0 xmax
: O0 H+ a! `6 D \0 l
5 y, E! s5 I3 K; }/ Mset-plot-y-range 0.0 ymax: b; E* Q* w2 u
end7 E }. _. i- Q# w! S
- G0 ?4 Q5 g. Rto setup-plot20 J4 ~) M; ], b
1 j5 j9 @ t* U1 a& S' s9 V6 k, N5 d
set-current-plot "Trends-of-global-reputation"0 d; O0 v! |2 z2 V+ d
, c0 j1 Q, r z1 j; `: jset-plot-x-range 0 xmax3 H2 n c# \5 X
3 m$ t3 ^7 Y- ~2 @" o, Z' ?
set-plot-y-range 0.0 ymax) C- v7 f$ h$ Q1 g, s7 i1 L
end6 i& W9 n! G% f; c
& N) j- \/ t7 x; a6 d# ]$ G) m
to setup-plot3
[6 F0 r: C# p- S5 j, t7 Q; r3 ?6 a( _8 F7 T
set-current-plot "Trends-of-credibility"
: H+ W; u; f: b3 p' ?3 Q0 {, q# d( |9 b# W/ o, ]& e) P# V
set-plot-x-range 0 xmax
! S# p) j: p4 u, O& l
1 w4 F& F3 p0 Aset-plot-y-range 0.0 ymax
/ \2 Q3 D) n6 N- W4 R# Kend+ t0 w. z3 [! l d; s: p' o
6 \5 K2 y: r9 n
to do-plots
( W; Z/ x( l3 Q& Lset-current-plot "Trends-of-Local-reputation"* L' }8 t) N' B8 b
set-current-plot-pen "Honest service"
; }& N/ I x" C: x% J6 B8 ^$ aend
! c% m8 W$ o+ d" K1 m2 Z- Y% l' Q% }; X" ~ t/ z8 G
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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