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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
" D v* z, A; f* \ W: oglobals[8 d. E" H& d8 d- ?; x0 v
xmax
; q" [! R* n) H; h Z: Hymax/ `6 Y: \1 l! q5 Y
global-reputation-list7 r" W" ^" a* R8 H' v5 t8 v6 i" u
9 ]3 b, i6 Y |6 ~
;;每一个turtle的全局声誉都存在此LIST中
7 V4 y' }4 G6 w% K2 zcredibility-list
* p8 C8 i8 x: Y;;每一个turtle的评价可信度3 N: q/ L1 M7 S; t7 r
honest-service* X# l* A0 w/ s+ J1 h7 p
unhonest-service( a; e6 A8 N7 v
oscillation
. G. v1 `# W2 K% _1 `! `rand-dynamic& N- ^, f0 k& C, u# n1 A1 [
]! Q6 M8 k ^& I% w0 q
?! r- X' o# q2 s4 ]( bturtles-own[
' A( Z5 U7 h' R n) [trade-record-all
) R2 e5 ^3 I! k& F% {' a;;a list of lists,由trade-record-one组成' G5 |# v4 H6 o3 G+ E+ Z1 C
trade-record-one1 r" ]% F! i# G* 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
2 g4 a3 E% a! K9 C k: P; m7 n. j7 t) Q1 r. @1 s
;;[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]]
. q) _! e \; ~1 Itrade-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]6 C" F/ w9 G+ K5 _
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: h Q) z3 r6 l9 z$ n
neighbor-total
0 n( [. F: R# j- k;;记录该turtle的邻居节点的数目
; P, s/ f0 j0 u) X Jtrade-time! O7 M$ J3 N2 t& s: K" K3 m0 B0 m$ S! [
;;当前发生交易的turtle的交易时间- J& ~# g" w- T, I- G# H
appraise-give( X+ s1 A+ T) {) b3 r0 q
;;当前发生交易时给出的评价3 L. K1 o5 Z7 r/ a# v% M4 M0 c
appraise-receive- G. N0 M$ |* Y$ W' N- U+ q
;;当前发生交易时收到的评价 y( F4 @ Q) F+ O% I* Q
appraise-time
/ f$ s4 L* _" j+ w$ {) }/ E;;当前发生交易时的评价时间
9 F5 j+ h8 U( i) ?- F9 slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉* w: f* d! C# {+ ?
trade-times-total4 J& B. w6 Z# o' D; E$ ~
;;与当前turtle的交易总次数
4 B( J% F% y1 Ftrade-money-total
( h8 s. k6 F7 r;;与当前turtle的交易总金额9 }* J; c& @: h9 f; O1 }+ h
local-reputation
& s1 m) K# f' Q; q# c- B- o6 tglobal-reputation
) U- f) _) K; m2 p7 Hcredibility5 g8 h0 z/ b" C6 P# |
;;评价可信度,每次交易后都需要更新 d; u4 z% ]# y8 n' ?" ^+ @
credibility-all4 \4 I F0 e( [2 y+ V9 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. R/ @1 n: @: k, X! K
4 Z' Q& Y4 P9 H" D! W1 s# ]4 H;;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
/ V. i4 C0 s9 g, j& ncredibility-one
2 X% G% [/ Y1 |6 R;;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
2 M! l# ]9 Z+ W, oglobal-proportion3 H. y; [2 J( g! w0 a/ z
customer
: C/ R$ k3 I9 |! ~" j. X! r; }, X- E) Qcustomer-no
+ C- Z) {5 h% ]6 B( l+ B5 Ltrust-ok8 o2 f, V: E$ z9 z% y
trade-record-one-len;;trade-record-one的长度; {3 ~ f% t' f4 C7 A
]: \7 R( i; U; _% q% l
/ P0 p+ G/ q& D. _ d5 X8 _- c' Z;;setup procedure
) X7 w. c% q1 s: {4 x" z' `* ?# R0 A/ k1 v) W) K1 i' p
to setup
+ Q/ f g( z. P6 k, y
; J7 z1 r7 M+ D* }4 \ca
# E+ S0 u' e G- v$ h1 `+ r
3 r+ I# z4 C/ X4 w/ ~initialize-settings
6 f: _" k' s4 u2 y, P* C
+ F+ A! P/ _/ Hcrt people [setup-turtles]$ ]2 w/ V: |! o8 ?3 k' P: k7 K+ Q
( E. ?+ O+ f0 _3 |% {6 Nreset-timer* b/ z, s8 `5 C# R5 W- u6 ?
K' M$ p% S' U
poll-class( [% Y, e7 z8 Q, J
. i$ z3 Y9 R& N$ y6 m" @
setup-plots
z/ B8 b; ?5 t6 V, D
" F( l: r( y' J+ Y, s' M; Fdo-plots
9 q4 Z7 ]2 Y" Mend
; ~- G6 v( H; z$ t' U ^; v& p" s7 n. w8 ?7 L. A" S
to initialize-settings% O; }) i/ r* T1 m
! _# }/ p" N0 i5 K) z! Q7 tset global-reputation-list []" r( r8 y" ]4 R
& v( }1 t* X% x( ?0 A; l) _set credibility-list n-values people [0.5]/ H. f# A' a. N* d
6 {, W' F0 P* E; h3 i5 u k) ^, H
set honest-service 0
! v; w2 i+ Y: Y) a9 q% w; Z' Y# f ]3 U
set unhonest-service 0
; E# k! o% q3 q U* X; k8 q; Q, ~
* V8 c. v! s1 Q6 f7 Nset oscillation 0- y! S" ]/ c6 m
9 b9 G( H* n3 ]; f; Oset rand-dynamic 03 _. }: l$ h( G5 {, {& z
end5 ~3 i% B3 [8 E
1 f' b- o2 J* g$ w Q3 \5 Cto setup-turtles
+ h, a, d" s' Q- Fset shape "person"9 Y: O4 m' F' L
setxy random-xcor random-ycor
" s) z/ Q/ S& H" O7 w( ?: U: Tset trade-record-one []5 X' T% S0 e( [9 R! b) L% v
0 G1 d8 Z% L- \) u2 v" u
set trade-record-all n-values people [(list (? + 1) 0 0)]
& H. j# G1 g7 S/ o; K' F
& Y0 U* n& S) u2 a9 _set trade-record-current []
) l: k3 O5 U! W7 n4 ?) R/ ~set credibility-receive []( T7 A, c. j6 d* `
set local-reputation 0.5
( c O% [+ g ~& v2 i8 `' M/ m' k0 Jset neighbor-total 0
N% U% Y7 _- N; yset trade-times-total 0) @7 n3 a& ^& W/ y: E
set trade-money-total 01 D/ G* Y! G$ r, @$ O I8 o
set customer nobody4 K) O& x ^8 c1 e. ~
set credibility-all n-values people [creat-credibility]
9 ?$ E6 Z1 V, @. ?2 t" xset credibility n-values people [-1]
1 J6 _; f% p" x' |3 t* I {get-color$ O! s1 `2 @7 M9 n% B1 M2 Y6 L
3 g/ w, b1 t' f9 oend6 }7 I$ }7 n) V5 m% H
; b* N' }8 I S1 e( H7 r
to-report creat-credibility
6 X1 c: X* w* t1 M. L2 H# i; }report n-values people [0.5]
$ m' n; B }; J o" r! N0 jend
+ k( p0 n2 Q3 J/ M& f( X4 q( ~# `9 e" [2 Q- _
to setup-plots6 a* c x: I( P" U) j4 O# ]! a
! c; u* S6 G! e- ]set xmax 30) W! M+ z/ d+ M0 @
( l% C# k7 {( E: Mset ymax 1.0
+ Z' M& s# E: Y. Z ?% m, x
/ U! ]/ B' W2 Pclear-all-plots6 O+ \1 L8 @" |; m2 V8 v- f
& ?% O( j$ k. ^+ ~6 gsetup-plot1' x/ a e* w7 w% w# d
( o$ U; ?. J& s# l5 V2 p" @
setup-plot2
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" W2 H/ w/ g5 B- |5 d) D$ e# c3 W3 zsetup-plot3, q: x5 Y% ~! w6 G9 `
end
" J" Y' O& \. [( x1 i" d( _' h8 }. w! Q8 z- ?4 [
;;run time procedures
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to go
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, S( O% x/ H* A. \ask turtles [do-business]
% H+ h9 F5 T$ L( xend
* S, Z( t7 w' r3 c) v8 l$ L& d
9 D5 ~% A. V" F# b3 Ato do-business
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) {& B- |2 ^# ^& ]
5 Q3 {2 \( |9 ort random 360
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fd 1' ^/ q% z* K+ t
# W) E2 `; h* h
ifelse(other turtles-here != nobody)[: I$ L$ [# _6 d
6 b7 L! \2 V0 _1 p$ p" C% W9 ~set customer one-of other turtles-here
' W0 e% [5 Q4 h4 b% M+ d2 ?- K5 w( s5 K d) {; F) N6 _* [
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)) ^: d- a1 M: a/ _9 ~
[trade-record-all]of self
' p. ^% K8 c1 y+ S' B; M' x;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 B% l, x8 K6 L/ W% r% y6 x' o
+ H% a7 r* k+ M# [% iset [trade-record-one] of customer item (([who] of self) - 1)
* k, A9 j# r1 L% W[trade-record-all]of customer
2 Z& T6 V1 I' j5 J5 g$ g! U- E8 b
! J3 C f6 P" q8 A& y! G5 {4 _3 Aset [trade-record-one-len] of self length [trade-record-one] of self$ r5 h0 Y2 E2 | |5 A
% X$ k' h+ N5 ]: \; f
set trade-record-current( list (timer) (random money-upper-limit))
- M3 `7 ~# p x4 K/ q9 a- ?4 [8 p( C5 Q# \& B8 G7 b: V
ask self [do-trust]- h6 j J& l. J Z% z
;;先求i对j的信任度
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if ([trust-ok] of self)
) T1 F; G5 W0 {& c0 Y;;根据i对j的信任度来决定是否与j进行交易[0 D& h( X6 c9 |& |: h
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 s9 B" X) N8 X" o. d; c$ \
/ }; f& O& s% V% s A" p3 ~) y
[
# P5 U* _2 u$ h$ Y0 t. q8 n( o+ |2 r4 W
do-trade1 x4 ?6 \7 W' R; S
. B$ B. W& a: `3 x. k% i% R' A: @update-credibility-ijl* q& R p+ G* k! \7 g4 \5 S
" E$ _9 g' B# X: ^2 kupdate-credibility-list- o! F+ i, o% E1 |1 C
* j7 F$ e) g: g$ x) P, z2 ?
8 m4 y e5 k Y0 ^
update-global-reputation-list
* v6 ]8 u+ e* D' w1 f4 [$ E/ A9 o/ _6 f0 b0 c
poll-class/ g* V! W7 O* H5 B) \
. V( B% T2 A" g/ y0 Wget-color
5 d, N9 s1 ]$ ]3 ^' x9 y) r# S# n6 k& r. x
]]" O6 X; c& \: v/ H6 O' ~9 L
6 {; k6 ?( t% F# G3 O4 N' X3 _
;;如果所得的信任度满足条件,则进行交易
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- g9 T2 P- d* H; R[
: ~' S& I- l) c9 U! r; D6 {7 C7 P3 J' O" z" t
rt random 360! |# M) r4 W, Q' s* P
. g3 Z% V" ? `# @% E( Nfd 1* }8 _" q* r( s1 z" ]
) n+ D j. r2 o$ C2 D" v
]3 x+ s* a& M; q4 l
: K' k& k: {' I/ h% t6 Y. I6 Qend+ U5 m% J5 E4 \) g# \
$ n+ W+ d% Y' T. Ato do-trust * s W, W0 s; P; o
set trust-ok False+ c0 i2 m2 G. j# d3 A$ a. ?
& a. O& Q* `& A, [. S9 m3 P7 }6 c B) ~, w, k3 m
let max-trade-times 0: M* R2 B. T/ d# C9 p7 h6 b; w( @$ o! J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ ~1 N& R( D5 hlet max-trade-money 07 _6 b! V2 X" C% n- V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! Y! }' M8 y0 [2 i& Y, r
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 x2 ]( M' K9 } v
) P8 c9 v8 r# u% i, a) l
4 ?0 z9 n+ i1 y, h3 T! m7 u
get-global-proportion
- S8 C% i: g0 r Qlet trust-value
3 ]. C/ A0 C- W" c; Nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
2 j. l& C: p$ P! Jif(trust-value > trade-trust-value)
) E8 m' y* k, K7 `) E. ^* w[set trust-ok true]
3 L. k2 _, ^1 f8 c& G2 nend
: Y3 _4 P1 o5 u3 i9 [* b" [7 ^0 K! l
to get-global-proportion
. I6 V8 r( ]( M, O0 N. \0 yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! O9 `- F3 y1 R: Z' }8 z[set global-proportion 0]4 A3 F- J/ z& Q, o% U9 a5 j
[let i 0
1 m- v& g' t. o/ F3 mlet sum-money 0
$ v6 D% ]" h: _$ x+ `5 qwhile[ i < people]; L( O8 ]2 Y! y- S; w+ m4 g$ @
[
0 O( [. ~* i0 x* e$ ~if( length (item i
! b6 U2 A& o" ~7 q2 v$ S; h% U1 R[trade-record-all] of customer) > 3 ); Q. e/ n: b4 Z& _
[1 Q# d! ~0 L: m: S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 l; q8 V- E4 s9 d& s
]- x4 C9 h1 P+ J* Z, B6 X0 d. Y* d8 y
]7 l& y b+ L8 B! @
let j 05 e3 V! _8 b8 H6 r' C
let note 0
# y5 Q, g: u S, P3 E# bwhile[ j < people]
! A' o3 K/ \2 t Z$ P& g[0 [! ~ L0 ^& S4 r* Y
if( length (item i
1 g# I. B+ u5 p[trade-record-all] of customer) > 3 ) k8 a9 o- v4 E, L1 @5 [
[; y: V: Q0 I0 b) {4 @ m
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: o- ?* ^, n7 j5 f4 C[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 b. u: d# K }+ Z: f6 i4 F9 b: z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& Q) L5 w1 H4 L6 {7 H
]& K4 s9 }1 L4 I F! ?! I% b
]
" }( z+ e: G. o0 N+ J" \) Fset global-proportion note& [) @ x: o/ F+ B* y: P3 ]
]2 b7 f# b; h; y, [6 D8 M
end
4 S; s* x. k# v E7 G
8 K) g6 f+ ?- D3 I" fto do-trade
* E2 n: r" [6 G5 d;;这个过程实际上是给双方作出评价的过程
2 W' `3 ^3 d3 uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 t) x) B8 a. @# t+ z* |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. ~9 e$ o: f/ b. H9 o4 A
set trade-record-current lput(timer) trade-record-current2 }3 d: X5 e: e
;;评价时间5 ]6 e) l6 o: V2 p8 y7 e6 X
ask myself [
( `* T/ j) k2 x' K2 mupdate-local-reputation
4 F7 F, l. U: Z* \ pset trade-record-current lput([local-reputation] of myself) trade-record-current0 |# |* s( X3 b& D9 B! k" d, o
]
# \ n8 [7 a& K' I l; S F: Xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, F. z9 _* b) e/ H. f
;;将此次交易的记录加入到trade-record-one中
+ [' z7 I" A; q0 {; u8 Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 W% U* V s2 g) B5 N2 F8 T
let note (item 2 trade-record-current )
( ~; L( ]/ ~2 C' qset trade-record-current
0 F9 q* S- l0 h% s; |0 A& @* {(replace-item 2 trade-record-current (item 3 trade-record-current))" ~2 }4 n7 f) t) Q( o
set trade-record-current& u# m1 v: J1 Z7 I. r7 a* ^
(replace-item 3 trade-record-current note)
* B2 D3 T! }& i9 ^* J# r
2 i+ P8 O' Y$ z) L- J0 c. v% H$ @. m! A
ask customer [
5 @$ }+ G" o( K/ c6 Hupdate-local-reputation/ I" D- R8 w6 L* B- d; j8 I
set trade-record-current
+ _" \; z3 Y: E6 n+ }" P* Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' |" c1 [% l! Y @1 `
]
0 t, k" e! ~- Z. d$ c) E" }! I
4 i! p L$ ]: [$ P, [9 m: Y& H9 Z/ R, K' E3 p. S4 f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! z; R3 [! Z+ T6 x; ?! K( m: {8 k# v
& E" s9 c1 a& [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 l/ q+ ^6 I. P; A;;将此次交易的记录加入到customer的trade-record-all中
8 r5 P4 M/ E: S5 T& _- \) T. @$ Bend0 f8 q( U3 S/ }- J# W
$ D$ _' @' M# w
to update-local-reputation) O! T T ]+ Y* v
set [trade-record-one-len] of myself length [trade-record-one] of myself; M/ i& g- w6 R- w8 e
+ s' y5 u( U# G+ G
& ?, l' M, v( D1 M+ ?;;if [trade-record-one-len] of myself > 3 " \ W, M {4 _3 }: f# A4 V6 G- w
update-neighbor-total
" k( D* {8 n- o; {* m0 x3 b;;更新邻居节点的数目,在此进行
( u2 f% e$ x' J3 s7 H& slet i 3
6 I: V$ C' Z* }. Rlet sum-time 0
9 P8 Z2 U1 J1 U! ?while[i < [trade-record-one-len] of myself]4 q3 H; [" L- W5 T/ C" |: Z
[( F0 T; ^! B( ?- v' o9 f5 F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 k) M7 K, v, ^3 e( _6 T O( q
set i
& j, S3 _2 h4 w8 s( i + 1)
7 h' ]3 Z1 G0 I+ D" ~]
6 Z$ _7 f8 k$ L+ k+ ?8 u$ K {let j 3. x$ p) |2 H9 p# N* Q
let sum-money 0# K# m/ e) L2 ]
while[j < [trade-record-one-len] of myself]
: R5 d! A8 q- j0 u7 c4 A[- ^+ \* P8 S4 R3 X5 k; x" `
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)
3 h; W! H D9 t6 iset j
' K. Q7 m. j# s5 |$ W5 P" k! `! B2 @( j + 1)0 [1 `( g; z& n: Y7 P
]
7 {+ b0 Z0 D- f- D8 jlet k 3& c/ G( s; T) ^5 H$ h7 ?% U6 b; B/ d4 S; F
let power 03 _' j; u1 F! z& o/ p
let local 03 Y2 E# u( G; U0 Q. f
while [k <[trade-record-one-len] of myself]. Y# J' M8 l+ Q
[
; W0 c# n. h" M# ~) {. eset 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)
1 F# {% E$ v/ k* d8 [( r5 w( |set k (k + 1)
+ B5 T$ ]9 j. {* x( s, x" n]
$ r# G/ S% C/ V2 A3 H7 |set [local-reputation] of myself (local)
3 o I y" y+ O1 Fend6 U- v" @+ D1 r7 O/ t" Q
" C- k' }% D, m4 l- x0 Oto update-neighbor-total; D, r) W0 S0 m5 D3 g6 l, h
2 x: B/ i% Y2 J) l |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: C; i5 c2 r( _/ {4 J( K$ f. @& _
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; e8 M8 n; [. Q2 H' t! wend9 S3 Q4 A) A0 z* p
/ x: q" M- S7 n eto update-credibility-ijl 9 P1 W) \" r" h
~9 l I- }, \0 O;;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。
; ?: c" Y/ x) {let l 0
z. d9 S% e0 y. pwhile[ l < people ]
X7 A! s( i; ?3 F9 V;;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6 W0 K6 X9 _5 w! Z1 r* f
[ U( u$ L9 u$ o6 i
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
0 c: L( ?" E: |- oif (trade-record-one-j-l-len > 3)
D" V2 i4 ]% \; S/ q. 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-one0 X* X# Q: P9 i
let i 3) y& ^8 Z: ]2 O* H% p
let sum-time 0
9 u7 c7 ?$ g' V8 V5 ~; u! v$ iwhile[i < trade-record-one-len]* G- W, j* P0 C/ X* ^3 {; A1 L
[
* m0 |8 x- U1 O8 nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) j: b" H! r- o$ x1 o" g6 x
set i( i, |: L1 Y/ [% I( k/ m
( i + 1)
: `6 Z1 c2 i5 n9 S. E]
8 M$ x9 Y; v0 |+ z3 Blet credibility-i-j-l 0
1 V, l6 ]! C) }5 r6 c;;i评价(j对jl的评价)
/ [; S: l9 J* n/ e7 _: {* Z( Rlet j 3
& A4 C7 [ @" f. q7 N6 k9 ]. Olet k 4; m4 y6 k# d+ k, A/ l) ~( b
while[j < trade-record-one-len]% V! E4 A! L) K" m' w" r% Z
[; T7 e( M( z+ Q% y, f, C' P
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$ I6 V& ?% e8 x
set 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) F& [" X2 g; D& Q$ H, e4 r
set j
% m1 T3 T& u3 |; |' r% t5 L* A/ Z( j + 1)# R! x7 l4 a. O' _% G
]
( D* c- K; P7 K8 ?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 \- T# K5 Z0 L0 [
4 X' ?+ t) F3 @* ?( p0 t/ L. B6 L7 t5 z8 E1 H, q8 d. v7 A
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 B5 Y) A$ ]& Y0 U& [3 g5 \6 _! N
;;及时更新i对l的评价质量的评价3 B2 z/ N5 E5 J$ d/ y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) z+ w0 J0 X3 W+ f4 ~0 Cset l (l + 1)( ]! x m5 f# c1 O; t
]6 P; T+ V, n3 `2 ]) ~8 r9 O
end
( B: a7 J$ D( K8 R0 \& j- h( m
to update-credibility-list. {5 A' G9 Z( t" y
let i 0
1 ?! m# j i4 O6 r0 zwhile[i < people]% b+ q( k1 L( l
[
3 t4 @- N* O3 S- y$ s& Ulet j 0
2 ^* R+ [* Q7 R9 J$ j% Rlet note 0) V s8 {8 J. K7 O9 ^! b! o
let k 0- k4 o: ]; I; e' W Z1 X- \# S
;;计作出过评价的邻居节点的数目
4 a$ ]6 p2 m) \( i- z7 cwhile[j < people]: U$ b( W5 T1 T' T
[
/ b F% ^. j& e5 h0 x2 Vif (item j( [credibility] of turtle (i + 1)) != -1): x% ~8 \1 Q4 f& M& V. P* E' T" g
;;判断是否给本turtle的评价质量做出过评价的节点
& |4 c2 } t' _7 T[set note (note + item j ([credibility]of turtle (i + 1)))" `% ^4 ?( \0 g( J' b9 ]& P
;;*(exp (-(people - 2)))/(people - 2))]( Z3 p( V: G9 e% q+ g
set k (k + 1)
: E% j6 f; Z2 ]) t, Q8 Q. g9 s" U], \1 m4 i2 F4 H' I. o5 X5 D
set j (j + 1)# J9 w6 s2 f# }
]
\$ r* ^( R& h2 t. {4 ]9 C& V8 pset note (note *(exp (- (1 / k)))/ k)3 D& v# z! h7 Z: _$ J
set credibility-list (replace-item i credibility-list note)
6 [% w3 U- l' U! y t1 x( T# Iset i (i + 1); V( V6 [8 e" U# Q+ o
]2 z' a, L6 D, w0 n H) a/ o
end; ], C- H4 r9 G; Z/ F4 v) a8 z# q
/ F; O* E$ e4 z, s! vto update-global-reputation-list7 `4 E- N' U S3 t2 y1 @
let j 04 z, }5 j0 j0 n. \
while[j < people]
& G2 F1 c4 N( R9 j7 l B3 s, f3 f[
+ J* X. S9 b1 t6 ~& rlet new 0; J8 C. T! G ^' }
;;暂存新的一个全局声誉4 | d0 e- W0 Y( E8 D
let i 0; H" f0 Y* f; d; @! M1 H6 A
let sum-money 00 k/ i+ f' C4 Q
let credibility-money 0
0 n8 Y- k8 b8 T" L% Rwhile [i < people]4 X; S# r/ z& S6 q. q8 T/ g
[6 V! W X# v% _8 v& U* o6 N
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 {( n5 L9 `" V/ g" U5 aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 Q# b: X; a3 E, p5 j& R
set i (i + 1)
% b6 R2 ?& o9 m]
: W" o/ g# s1 hlet k 0) G: o7 J; \ p* o% f
let new1 0
9 ^' m: W7 }3 r$ }while [k < people]
# `+ F3 g0 f A2 m[7 N6 S v" ~2 g
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): {$ q& ~) ?- j& ]5 W8 D
set k (k + 1)
$ b! S' y4 p# f9 [ x) \4 ]5 Q]& j/ U% |8 b- l2 v/ p: a
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - Z/ g( S6 J+ [' A# n/ O" A
set global-reputation-list (replace-item j global-reputation-list new)
8 T7 S; w }5 E/ I6 Iset j (j + 1)
2 [$ J, Z- R% a]
3 L. m$ G* B' q6 [$ t F. Lend$ H" K/ d6 d& x
# M: m8 J% g' z# S( q, R
4 w8 p0 t+ S' {1 o1 y8 F( I/ [) @# X5 H: v1 c* a
to get-color
& }; c% g7 D5 @8 C! Q: U, m" \: m% M7 b2 b, k! X4 e( B( ^: A1 D7 ^
set color blue
4 D; e6 E: W2 K, ]9 Y5 t# Lend
/ L( ?* g, |4 E. F2 D: ^9 a/ c8 d) W% X; T/ Z0 n) [. T
to poll-class
& h2 ?8 E4 [" ^7 e4 g- g0 ^end
- y- B; w2 G0 A% W$ j( \ Q9 ~ e. J7 ^
; R! F+ C0 i, Q8 {to setup-plot13 {& S( }# d5 u6 W$ M6 \
1 W' O! I) {' y- E! r' @) Wset-current-plot "Trends-of-Local-reputation"6 k4 u1 Y- R2 Z5 z, T5 s& J* n+ e
- G G9 F6 z. n1 i! s2 L; i+ kset-plot-x-range 0 xmax& B- j9 }' F5 M7 E" ~
9 ?, l, E& C. L
set-plot-y-range 0.0 ymax
1 o# r% _8 x3 T) Oend( j* Q& u" ]8 C7 v D" H
. s* J9 @2 d7 {7 a- C8 |, uto setup-plot27 x5 i: i( M7 ~
! j. Y- N! M+ ^+ ]" d2 v7 v
set-current-plot "Trends-of-global-reputation"
5 c+ N; a8 a4 J( j4 p8 ^0 ^" `8 B f3 \) |
set-plot-x-range 0 xmax
- P) z# _( a" K1 _9 [ {: ?
$ F# L/ @/ Q( h6 R3 o: R2 Qset-plot-y-range 0.0 ymax8 \% U' c# W+ Y$ K. W, J7 g/ o
end% N- V' b/ b, P; ?+ q
$ l! P# G9 w+ T; C% v5 Rto setup-plot3
; R+ G5 _) `8 ^: W- B( r. v* ~; J/ ]; \6 v8 ]4 H
set-current-plot "Trends-of-credibility"* ~) v d# f0 f# }+ p$ h5 E# _
+ t- V" D3 l9 z/ k/ R5 N4 a
set-plot-x-range 0 xmax1 o8 P' g8 @$ Z6 i% k- M: E
9 ]; _* x1 u0 q0 l! t0 K* Vset-plot-y-range 0.0 ymax
- \" Y! S% l0 {7 h5 e+ [end
) e$ Q. v, @* n3 W" R* L9 K' P- s+ ~) ?
to do-plots
4 ~6 s: Y! u zset-current-plot "Trends-of-Local-reputation"5 z6 \$ y. g9 _, A) B0 C6 l
set-current-plot-pen "Honest service". o* J. L! d3 z7 T- x
end1 v5 H- ?& n8 y# h2 c1 C
" R5 d* F9 n0 i5 v' A, l
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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