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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
$ u" b, K' G& y$ k* yglobals[. N. W6 `" x4 l' u: U' Y" K( E
xmax
( S a- ?8 Z {$ @, Lymax! W+ B1 X E, Q7 e& L- f
global-reputation-list, Y4 M1 d: }; w+ y" t0 |( F
: A% `# F5 y7 [: P2 t$ _# |;;每一个turtle的全局声誉都存在此LIST中
@% C$ l' B# g( w& ?# `; b1 ^1 icredibility-list% H7 r6 c* m: o# u
;;每一个turtle的评价可信度
: h' D2 N' D9 a% P# vhonest-service1 ~, q% U* [) s. q& L
unhonest-service; v) O( p ~4 x3 |3 Z
oscillation# z( h$ m4 B9 c, R& Y7 W
rand-dynamic9 z* K, K& ^9 S& E6 L/ w+ f
]
7 u8 J3 R* c' L9 o- Z1 d6 S
3 F0 |1 g1 i' Q- k' pturtles-own[. f, ]; F% r+ U& i z( V
trade-record-all( y1 {1 _/ S2 Z; P" h; s
;;a list of lists,由trade-record-one组成. [: v- v+ Z6 C8 s' |! u% U8 |8 p
trade-record-one0 u. _6 ^4 A1 U! i4 f
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ A4 o/ e8 S& R4 L' U+ K8 _: x
0 y3 g5 x7 [2 w5 ^9 v$ [- K, [2 _;;[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]]
( i/ Q8 j# u% T2 U$ V/ K7 ?$ `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]# _! g3 G4 o* P
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( R# r' R( `5 E/ V8 I
neighbor-total8 f6 f5 G' y' W+ \, Y0 B- K" Q4 R
;;记录该turtle的邻居节点的数目
# C( j: }. n# d6 Ptrade-time
5 R% T. f$ Q& K% v;;当前发生交易的turtle的交易时间4 k( A: i0 B5 ^) ?+ t& z6 R$ v
appraise-give
( a" N8 m. x3 F+ s5 g+ K! ^7 ]% e;;当前发生交易时给出的评价9 C4 j" e9 _( ?1 ^" c \ F8 V
appraise-receive' D& a" l$ S* W( M- g) z) ]2 r
;;当前发生交易时收到的评价0 d/ |5 M( p# g' u6 v* V0 J6 d
appraise-time: ?" ?; h- `3 ~
;;当前发生交易时的评价时间' |9 ?+ D# h; C9 A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 I$ N. j4 O7 M5 y6 N" X1 A1 [$ k
trade-times-total
# E5 a+ l' ]( H1 S;;与当前turtle的交易总次数& E0 _, a3 g+ G ~
trade-money-total
, F) X- A# v3 B/ a- i;;与当前turtle的交易总金额4 ~* P+ e* f$ F6 J" F
local-reputation% ~. R9 l3 P& A+ R8 J. ~
global-reputation: E/ b% U9 a; k0 W* Z& I' S
credibility
" E. j$ d, j2 X5 ~;;评价可信度,每次交易后都需要更新" J+ X1 s, z$ E& g
credibility-all
9 j# k& \4 i) z* |; D6 \7 w6 K) a+ O;;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
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) k3 q" G/ X1 W0 v;;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% W- Q+ n' `: j" X6 V
credibility-one
4 p: k: i1 }4 C$ H4 \;;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 y* D H& \+ P$ z3 d# A& p9 I
global-proportion
) Y) l0 G3 a& H1 Vcustomer
% S1 _6 }1 f, y4 Ccustomer-no( O, E& H5 U7 t# i+ U
trust-ok' G1 ^% g: I# ?# i2 Z' K; L6 b, w* ~
trade-record-one-len;;trade-record-one的长度! J( w+ a" h c( k
]
+ P) l4 Y9 E6 w1 z. D* v
0 M& n4 c8 T+ k* M;;setup procedure( \- k3 Z' q a! o9 v( X" O
0 |) \+ A* G' ~* }) ^5 N. ~0 y
to setup
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% G9 e5 ?0 W1 e+ B$ g" u- @8 Xca
& ?( F' Y0 Z$ u; ]
" O \7 |2 F7 Einitialize-settings
7 \! Q/ A; G3 O, H, q
* ^" o) W1 h: Z4 i5 J2 icrt people [setup-turtles]
. V$ }4 ^) I8 G- G/ w
! X% }$ G. I* Rreset-timer' k5 ^, h+ Z A1 P( m) O' H
! h. ?9 ?9 e! x! ypoll-class/ R, j8 S& X# S: A
1 U& W5 a4 S# }setup-plots% p3 {- c; T4 e; N4 a* f, u. x& d
& m+ `! f& H0 C& tdo-plots
8 v( v8 r% l8 nend
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to initialize-settings
: x' D( X" G# J7 q7 V4 C# O% d+ x; a! W, C
set global-reputation-list []2 n* h5 q' u. N. z, o0 j0 E" I
7 O/ M0 Y7 ]$ Qset credibility-list n-values people [0.5]) p3 r4 h$ Z1 {
" L# J9 g4 M3 d9 h- ~5 O2 [
set honest-service 0; _6 p' T3 m6 n- ] E; s" m1 ~" A
/ q1 O# L8 K1 V2 ]7 Nset unhonest-service 06 h. y1 i; E4 U/ s- _1 x
5 K# ?# ~% k4 s2 R; z/ F pset oscillation 0
, B/ D* q# d; C6 q* C8 g$ W9 _7 ]: @
set rand-dynamic 04 ?. u! t# t6 x
end
: U) F k/ L' g7 h( V( q1 C* i
; D7 `; n) U- W. s oto setup-turtles 7 m4 l! n: f& ?
set shape "person"& h* z+ E: J0 }) F: J
setxy random-xcor random-ycor
`# _( d% s9 i% n) Pset trade-record-one []) G) X/ W- D4 a: u1 d$ P( G
0 f- {* _1 j9 S% t
set trade-record-all n-values people [(list (? + 1) 0 0)]
( s* y& g# s/ X+ z5 L6 L* ^9 G# o- g( S
set trade-record-current []! V2 ^+ a" b5 g) ^, n: H
set credibility-receive []
) }% N* F3 X& T6 mset local-reputation 0.5 ]0 y. s3 {5 E5 y3 p {0 B
set neighbor-total 0! s- w9 X6 b0 Z2 Z: z& {5 T3 \
set trade-times-total 0* S& I8 K Z% t, C) i% n
set trade-money-total 0- c! z" Z" {$ T f& t! G
set customer nobody' b* ~$ x) U8 J# \5 o0 P
set credibility-all n-values people [creat-credibility]
2 [/ _3 r% M* f2 F; Cset credibility n-values people [-1]" n0 ~. X) k+ Q# `- L) |4 t* b
get-color- Y( j" M7 P4 C3 g d; s9 u
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end6 ]3 F5 O! z- W1 u; q( Q/ I, L
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to-report creat-credibility$ C2 l) j! H1 Z/ H1 k
report n-values people [0.5]
/ w0 |5 b' a; [8 N: lend
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to setup-plots# D. }( z3 B! y4 M" A
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set xmax 30
' X: K/ h5 u( {- \9 u! @' W1 T- d; g# [4 J v; M
set ymax 1.01 I2 L* @/ W0 a/ b5 c+ O
) v. p8 ]8 Z$ N; V3 B+ tclear-all-plots
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+ `: A( Z- V5 E- i" ^3 Osetup-plot1
7 f5 Y% @% S) x3 e) d/ B9 e
) a; j, A& s4 I, Nsetup-plot2
0 ^" c8 l. d q7 o1 u
+ W$ ?; G4 n- M- _: h6 Msetup-plot3
/ x( e+ |) G( c9 Bend. a9 Q( n# s5 Q' @0 w
' m! [9 G' D3 y) I. J
;;run time procedures1 ~( P! D4 v" q3 }
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to go8 d# Q3 m/ z- _5 c3 c, Z) |
7 a4 j: W! F1 }
ask turtles [do-business]
) a, ]" z, z2 r5 mend
* K, c% F' q& D; D y& g3 X: B6 i2 g2 `8 j. X
to do-business
C" `* |# @. c/ h. H a" N- s
/ F b% j; V$ J# V4 L1 ?9 Frt random 360
m) S' [! C( D$ w5 a5 Y% h2 ]- P8 s0 _* N
fd 1
) p& _( W3 c+ l; T0 [1 D' k4 |* J" T$ ]# n4 H: w$ }
ifelse(other turtles-here != nobody)[
0 M9 G5 u9 J; @$ r8 W/ s/ I$ `) H$ ?0 _/ {5 T/ V1 _2 j
set customer one-of other turtles-here
% k5 L5 ~* p+ C
3 [$ Z6 J- Y1 ]6 r; s;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
0 L( |! h* j" I9 g" Z3 ^) Y |$ N[trade-record-all]of self( n4 n1 h8 l3 ~; y) [8 G% ?5 Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. } d- o' g) M1 `! H# q/ k5 J2 j% z- [" Y5 ^
set [trade-record-one] of customer item (([who] of self) - 1)$ m/ } e! D: l: C
[trade-record-all]of customer
7 U' b% P" Y4 S( \
& N- J. u* p$ I: y/ t+ Pset [trade-record-one-len] of self length [trade-record-one] of self
$ ]* b) j. S0 E* C9 a/ l6 q6 Z) G% ^9 n O1 A7 o# v7 U
set trade-record-current( list (timer) (random money-upper-limit))+ P7 a, B: ?. Q4 l1 q
0 ~& L1 \0 {- L5 i W6 S1 z% \0 q
ask self [do-trust]
7 ~/ z! t: G5 M9 B F+ W1 ~3 @;;先求i对j的信任度$ v4 u8 O* m: O5 b' U
. j% r' s+ W+ h' P; E0 q2 \& m
if ([trust-ok] of self)) o3 n, l4 D5 }( U+ S
;;根据i对j的信任度来决定是否与j进行交易[% m! i. u/ n( d
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 t" F+ ]% D* l$ T" ^6 q$ J
3 A4 n8 D; j4 q$ P! ~; |0 u0 t
[
0 ?6 e4 n1 \( a+ J7 \* d' R1 a/ D( x' ^9 Z
do-trade
' i5 |% Z2 u2 T! t0 a; p- G5 @" m& ]* _6 J0 B. l
update-credibility-ijl
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update-credibility-list
2 |5 H6 N0 m( ^# G# a
/ C/ j0 O5 ]3 `2 s$ V: K( L% r7 D1 i2 K* _( b: T, c; G
update-global-reputation-list
1 T) B% N7 C/ J" V& M5 m' i; X' s# W* g' I- D1 U. o% z
poll-class! X. L7 B( p% [8 m- ^6 o
9 J* i( l j1 R
get-color
+ i I7 V& n9 t% M7 p7 J) m2 i8 ^; E, w. u& m6 x0 m/ ?. A' b
]]9 Z3 q S! D2 h D% m( u( o
* D% I, `/ S, H6 f" p: v
;;如果所得的信任度满足条件,则进行交易1 _' v% y* Q. C8 M: C! \0 l
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[
9 ]5 X. a& F/ O1 d
* U- v8 P! b$ ?( i1 U3 O9 ]6 Brt random 3607 G9 L% `. W0 v0 Q" p
9 m ]4 o4 }# ~6 X
fd 1
@* D- i' g* `: N* v
3 ]( z4 M9 P0 W$ o+ K( l) _5 Z]& b5 d% j& s, R3 T/ S# y
8 W9 m7 F1 ^* K0 ], `, H8 pend
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to do-trust
- r9 {7 ?! g! W0 ^set trust-ok False! k; k- w [/ A$ ]* }+ U' b; H$ P
. }& D8 p# ~1 k3 ?2 H- h
9 s4 R7 ` _0 k$ a7 A' Tlet max-trade-times 0
, A. m' ]& `, K& o, j5 l- Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; I: J6 H0 Q6 I$ G; Q
let max-trade-money 0
* m7 C9 P# F8 K4 ?$ S' `# Uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ q0 P8 v7 x. W, ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 y; V& X1 C$ A ^, ?! v' I S. C$ _8 G8 N
' h/ x) R2 N* s9 E V2 D# kget-global-proportion h6 i0 c; Q7 U7 r: C1 j
let trust-value
$ V$ o1 O( _3 d$ k/ u+ u0 P+ glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% V( J* ^1 X8 J0 F3 yif(trust-value > trade-trust-value)6 e Y W0 K2 A- s* P$ h3 ~& p1 A
[set trust-ok true]& C$ w; A( F( P4 B4 P7 f
end
% k* v* _. O7 g- w/ X1 A6 X" P. G- m: e" E$ R1 v
to get-global-proportion
; y- E; e+ t/ y: d0 q! \4 Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): I; O) k( M( J9 P1 ~0 ]
[set global-proportion 0]' M9 D, S. A2 ?; H; t
[let i 0
3 s M0 k: m, wlet sum-money 0
2 Q) J$ R" n6 [8 ^% j' Hwhile[ i < people]
, E' N9 p V3 B1 }+ ][
* F7 {/ Z! c5 l1 H' @if( length (item i
' y, b0 `) N# I[trade-record-all] of customer) > 3 )
( R# U# t4 o8 A$ H5 d# [' q1 H[) d1 B+ X! E) E8 f4 U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' W: s; \- |1 y
]
& @6 d0 \$ j% M5 [2 ]/ u( {- [4 ]# v]
& S; e6 \ ^7 O/ [" b k9 {let j 0
) x8 q$ ]: N: C/ Z. l/ }' C+ y; ?let note 0
- a; ^3 o9 S2 ^( Jwhile[ j < people]
& {) V6 w2 Z: }% k: V[1 P9 j0 t( V/ {& C( ]
if( length (item i/ a/ h$ q! b! L: {3 \
[trade-record-all] of customer) > 3 )
0 l- q" ?' X | l! S; e[
5 \0 M. v* J, c2 g9 e5 S& Iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 y" w/ j: P) T" f7 m7 d* p[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* D2 J) r' E( k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. ]( M+ C5 N1 N+ o, L" O]
$ d, k& p5 h) i! T2 @]6 |9 }* M( f; u9 [7 `& ^* R
set global-proportion note
) Q8 p) c, l' _) q5 T3 W$ C+ G' i]9 |2 n# ^# L1 Y2 G' D
end- P n. l8 r; X2 b
, g: x- a- x4 k9 I
to do-trade
' d- V3 [. i+ n5 i: H1 l# c( f, G N;;这个过程实际上是给双方作出评价的过程
# h# O ~6 f! y1 M- @% [, g# x' W1 Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 a, _, a3 [" _& L
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- @' h- u( R" `2 f3 |set trade-record-current lput(timer) trade-record-current
9 l% l4 y0 r: z' d;;评价时间
% p( ~; Q1 n0 u( sask myself [ x8 ?7 v$ Y) h% m
update-local-reputation
! k t1 I8 Q" t% Wset trade-record-current lput([local-reputation] of myself) trade-record-current4 k9 K2 O# o' Y/ H- z! F c
]; }( r1 J( T l
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) y- {, M% S7 x! C! U" J;;将此次交易的记录加入到trade-record-one中+ v& d6 R: W5 C0 O5 Y9 B& ~- N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! \& r# @' X& Q7 n, \2 O
let note (item 2 trade-record-current )
- z; d7 |. F9 A& {- ^' uset trade-record-current+ r0 N D1 I( w, b' m7 X F4 H) j9 H9 x
(replace-item 2 trade-record-current (item 3 trade-record-current))
, h8 h6 d1 S. W5 oset trade-record-current$ H/ M" n8 }# w: k$ M
(replace-item 3 trade-record-current note)+ X3 F6 M1 ?! x5 [5 j! b3 H
8 b- m- d* a5 V
* y/ k' Y* E r- U5 m+ Gask customer [5 b- w# l! L9 X0 J7 ^& T
update-local-reputation x" W& R/ e9 `
set trade-record-current
. T0 x& b! o0 K8 R( ]! i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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8 l4 {. h7 x; `, ~- k
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! |# |$ I9 _4 n. c; I
;;将此次交易的记录加入到customer的trade-record-all中
]# U, i( n# ^! Rend5 j! P; Q3 \, Y. b
, h: }9 [( W9 K( I; Uto update-local-reputation
7 T& }# A0 ?( q( tset [trade-record-one-len] of myself length [trade-record-one] of myself/ \5 A" l1 _ k' M% w4 p# R
2 E( H7 w9 n$ K* z
" [, j) k' o. @4 E
;;if [trade-record-one-len] of myself > 3 # \. z; \* _ f4 K2 A0 X* P6 P
update-neighbor-total" {$ T5 e) Q& f" i3 C
;;更新邻居节点的数目,在此进行 s0 X4 b) @, }1 \ W& r
let i 3' j- A# |# Y9 s9 y) s
let sum-time 0
9 L1 e1 Y% v! P+ n5 Awhile[i < [trade-record-one-len] of myself]5 X" Z% o! M. Q/ ]
[
1 Q) W( S. o* s4 g5 I" d% Mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" c5 o" S0 m9 G' |; ?set i
) J* V4 b. Y0 B# w2 p( i + 1)
5 w( s0 W* l& t( v- R]
5 Z& N7 a [" t' N& h" F9 Vlet j 3) S N6 B$ ^7 E F. x+ B
let sum-money 0
* C/ e4 |* K; Awhile[j < [trade-record-one-len] of myself]
* S$ L# S! h9 R) t6 ?4 T[1 Y3 R5 r# p. p7 G' 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)
4 R8 C) F4 {! `! Vset j
6 M& T1 F, D/ b" f8 B7 S# }5 `( j + 1)
6 J2 n' \/ H, C, j]
# D& E6 |% w% d x3 Mlet k 3
$ E/ d4 K5 l" H) k! d: klet power 0* W* e. X+ z% o7 x0 v: {, {& }
let local 07 k# a( u0 f& \6 F1 R3 b
while [k <[trade-record-one-len] of myself]
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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) ) P+ s1 O h1 V% _
set k (k + 1): p' _4 i! d% x6 [) ^( Z G5 x/ a
]
4 K' R0 G8 P$ V; _4 ?! mset [local-reputation] of myself (local)- z' Q2 \( l6 a4 D
end% e* R) y& y4 j' e# C- y' f
- u2 r8 l7 {9 h- r* qto update-neighbor-total
' K+ n% @) v. n% |9 B- o5 P& B
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 E" T5 Z, U2 E0 a$ L1 P' Q
: T0 ]" ^& V% b$ M# y7 x, g
}( u W) p, u7 d9 Lend
2 d) D4 d3 U; q- g! O( F/ B. p& S' [: y. c8 `4 K+ ~
to update-credibility-ijl 6 g7 p( p$ d9 R1 P
6 o* i! h1 ]! P+ f7 A, W/ N0 N;;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. @3 ?! f( }& w6 s# k& Rlet l 0
/ T# M) x5 {6 f% O. q9 l* Hwhile[ l < people ]! A9 B% t q9 x4 }4 O
;;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)
6 f5 M% q, ~1 H. H6 \if (trade-record-one-j-l-len > 3)
1 X3 z W* @0 |1 b+ x[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# J/ k6 M3 `% B5 Y
let i 3
8 u7 w+ s1 o! X, dlet sum-time 0: U; S* l5 i! u) T" @" U
while[i < trade-record-one-len]
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# f, m! b. _( D7 z3 |set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 H+ J9 c& ]' P% ?5 h4 e7 `7 [2 gset i& u$ U1 Y# F, z
( i + 1): J7 P: c) S: T- @, M; _
]
: K& ~0 F% }# E' llet credibility-i-j-l 0) b+ T( q$ T z8 q" m9 k4 O
;;i评价(j对jl的评价)# C4 b3 [/ K* w' V
let j 3# w- ?6 [( C2 j, K5 A9 B: F Y
let k 48 b$ W* q& p- f! `
while[j < trade-record-one-len]
" |, r) `2 R1 X2 V! j% {( |[
3 b1 e4 P% ~# x$ Lwhile [((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
1 t/ r' ~$ j9 U5 \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)$ p6 N8 E K% K$ E9 ]
set j
( k M1 G1 X- {- U; M( j + 1) h& r3 \- w0 `4 U' a( G
]" L7 }8 b+ e2 @- x' H
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 ))
: Y9 q3 u# Q* v9 o- ~+ s( J+ E+ j
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' S' V4 l/ b& b5 u. s7 plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& e! w$ y/ {- x9 e) I( d9 W% p% ];;及时更新i对l的评价质量的评价9 I- ]5 K; b0 Q% }4 \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 g$ g/ A" R, D$ L1 i+ z. U
set l (l + 1)
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+ m. D' O" W6 h8 h, K" Q/ h% @0 yend- e. I! q+ X# X. L8 e7 ^9 O- j
\# ], X# A3 H3 n% }1 \
to update-credibility-list
& d4 A- q+ u, r5 a# W4 a. i- flet i 0
# i/ U5 O+ s, N4 b/ x6 l. h5 q$ X' awhile[i < people]3 B6 f0 B% Z$ `: }, I
[( {8 e' ]8 p, N# }0 y
let j 0
( V9 W7 E3 t9 X$ U# k7 s2 x! Blet note 0
0 D4 e0 E7 ^/ m/ b5 [let k 0
8 `+ X/ d7 V( j E( G; u;;计作出过评价的邻居节点的数目
$ j7 X, ^( U" L) `6 E# S: hwhile[j < people]0 y: C9 Z+ j9 Z0 q. v# Q1 U% t
[3 c' U9 x$ [$ x* _
if (item j( [credibility] of turtle (i + 1)) != -1)
; W i, K$ G; w+ d( _;;判断是否给本turtle的评价质量做出过评价的节点, ~" A: }7 c" M$ n T: @
[set note (note + item j ([credibility]of turtle (i + 1)))' W$ ?* l$ Y. x
;;*(exp (-(people - 2)))/(people - 2))]( \/ ~0 V& n$ t' w& `
set k (k + 1)
( f. ]5 I% a4 [) S5 e: C- Z]
2 G. z$ i4 m* [set j (j + 1)
3 a# E- P. M: P% a5 ?]8 A. S4 g6 q6 b
set note (note *(exp (- (1 / k)))/ k)
# i7 E. I, |) f' T. u! {! W, iset credibility-list (replace-item i credibility-list note)3 Y- V) ^3 n$ t6 q0 g( Q# Z/ Z/ L
set i (i + 1)4 m; \# d* R8 @
]
) `/ Q& W. z6 T: V0 J8 L$ dend
5 u% L# s( B G6 a, B& k6 }1 |
( u' I. T3 C) H$ W& Tto update-global-reputation-list9 [) C$ j# x# c
let j 03 y' ~/ L$ A" N b0 p- Z" c( i
while[j < people]
. {7 r$ _, g) D; D! d r+ i[ ~8 M9 l; L) t* A- ] q
let new 0
7 U- @) ]; L* ^+ v;;暂存新的一个全局声誉
! i @( E; z$ e+ x7 {let i 0+ I$ @4 ~/ ?- Y5 j. K& v' [9 x
let sum-money 0
' x+ n7 [: x/ V+ Z2 _ Ulet credibility-money 0
. Z e7 S' Y+ W5 o! h) y6 z1 V4 Jwhile [i < people] B; ]0 ]7 C9 ?5 B) b6 u
[; K: O0 n X1 O( j0 k, G% i
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( V0 A& } m% C5 T1 \; Tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 S; u1 f, ~2 G* _8 z
set i (i + 1)
! U' b; V. ~2 A* V* O0 M1 D]
( E6 W# Z# J1 y' n# wlet k 0) }, X# z" y1 u/ s
let new1 0
: r% o/ n) {9 N5 xwhile [k < people]
: _0 s, p; |# ~) b: j[& R' S) @0 M, ~+ U; K! {0 C% v
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)) i( m/ W6 J5 K' D
set k (k + 1), w h# L$ E w( z
]2 H F1 i% q* `" u
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 D8 q/ R4 `7 N g8 y7 F; o% Dset global-reputation-list (replace-item j global-reputation-list new)/ {4 @( u7 @* u2 M
set j (j + 1)
9 D. W0 |3 ]4 e9 m]
/ a; z; C8 w F1 c! |8 r# Pend
/ g+ \& }7 s0 o5 |" l# e- D q9 ?% k- w* v& G9 Z2 w1 O# `* q
* b/ J6 X6 s, B! L
6 d* M0 k! E& q% ?! L+ p
to get-color) V3 F; f+ e2 l: m W8 L% E
1 L. t% X' I9 ]: F5 v$ C4 N6 p8 d
set color blue
! O( Q6 F) @4 a& lend
; w5 Q6 g% c' V$ {6 u h3 N
+ n9 t0 e7 t7 Z. c, lto poll-class9 O1 Q9 p6 l8 Y3 ]) K6 @4 _
end
6 I- S0 P/ N. X) ], W
) y& ]3 |) |$ d9 b; uto setup-plot1- E. @# W; U/ e1 O+ n5 u5 y$ _! k
x+ _) T1 ?9 r: h1 e
set-current-plot "Trends-of-Local-reputation"
+ e" l; o; P b$ }# G( ^, o/ D) @' x' @
set-plot-x-range 0 xmax) n" t& H1 F6 \& _
7 R# c8 j" f! D: K$ p- f. gset-plot-y-range 0.0 ymax
9 c' f v5 f6 L: j% Tend
# W# f* w" \6 ?3 P9 i& z) K
. E2 g; E4 M( \2 Oto setup-plot2: C8 r: ~! I' @' c. v. R: V
3 ?9 K8 @, a' ?+ R: y- d/ Z
set-current-plot "Trends-of-global-reputation"
3 L$ g" P" U4 f; w5 _" U; U5 s9 J# @8 u$ M
set-plot-x-range 0 xmax
$ V5 a- W+ k+ a6 D s/ A- x( N! K! S0 C
set-plot-y-range 0.0 ymax5 j; C- s3 o; P4 ]8 l7 g. ~
end
3 m' W% l# n) Q' {) b; j. }" G. w. w
to setup-plot39 k- [ E$ c6 E o7 F7 y# ~4 ^
5 A8 N. Y6 X+ `& x' B
set-current-plot "Trends-of-credibility"
$ a' @7 i F: h9 N* {
* R. W" q5 h2 o# l' Nset-plot-x-range 0 xmax
u \ t1 A# q B8 M$ J3 [
, t( s! Q E3 ~: n9 U0 aset-plot-y-range 0.0 ymax
/ ]* h# O! p& y9 ?' v& Eend
% {9 T0 Z) I" r' ]# Z3 [
3 r# G5 q* c1 I- n, [2 o, kto do-plots
- V. f. z" |! h2 Q8 Bset-current-plot "Trends-of-Local-reputation"
- H' A2 r4 i( W7 n& {1 A6 T [set-current-plot-pen "Honest service"% M! A! f& V# V6 h l
end: j) i4 P! u& ~2 e
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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