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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3 I& g1 |4 _. J# w* F& K; y
globals[
& l- s' l3 O6 I. t- Qxmax: V4 t% p$ _9 N# w) l& A0 T
ymax" D( A2 A- \8 x0 V% r+ [ y; P
global-reputation-list/ s6 B4 v% \7 u& ~% h
# Y+ X' `/ r$ [; J
;;每一个turtle的全局声誉都存在此LIST中
% k6 t O, S# K6 ?1 I& v' Tcredibility-list4 k5 p! o+ ~' u) I0 F5 N
;;每一个turtle的评价可信度7 Q0 v: N/ P- E6 s; ] o
honest-service
) B8 F$ b- E! ounhonest-service
/ @6 B- E: ~+ {# S+ {oscillation4 H( @+ j% R/ I! C
rand-dynamic
; s* g* k: Q2 D' [# g0 a]
+ a& q L7 D5 N, F0 e9 `9 J" T- ` j
turtles-own[9 B( A4 K z1 Q
trade-record-all4 V2 K. Z* k# o: o% }7 ~6 Y) A/ F
;;a list of lists,由trade-record-one组成2 x" R: H5 e1 D: O' x0 B
trade-record-one
0 l3 v$ k: F; Q6 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
. Z3 y% G9 l/ @; e) t" q" h' v- S( h w: Z( A* x
;;[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 m- r8 U0 R0 f( r4 i
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]
% \" J* t0 T) Vcredibility-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
' u7 M/ w8 j5 W3 D& a* O: eneighbor-total
* _1 l6 b. C2 \& J! n;;记录该turtle的邻居节点的数目8 r' C; d8 G, `" b6 |
trade-time3 k/ {! s/ O4 a. L1 D
;;当前发生交易的turtle的交易时间
8 @; }+ j$ H( o. r. x' ~* dappraise-give
; C5 a( A) b6 j6 p/ \;;当前发生交易时给出的评价* j- r3 y$ a+ _8 \! B
appraise-receive! Z! o) l, x. d. e6 @
;;当前发生交易时收到的评价* z' n5 u! y$ P3 z' v- F
appraise-time
9 Y/ l) Y, K7 u6 _7 f;;当前发生交易时的评价时间
L8 y. \- b' L C% D" Mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
- C5 e) @! M1 D7 N7 X( Itrade-times-total
* ]' v* k @ Y* t& W/ h; I% a;;与当前turtle的交易总次数8 b8 G" X9 o0 C7 ?
trade-money-total
, I% M& _7 S- T2 ]3 n O+ K;;与当前turtle的交易总金额3 u: ~9 c, k: q; n& L% P! N
local-reputation
! n; C4 n* X0 p! k( x- w* Lglobal-reputation2 w5 A- O$ o; b* F; E. P2 ]# z# ?
credibility8 H2 P* R" Q/ B. r- P
;;评价可信度,每次交易后都需要更新' u1 V6 Z) E, p9 ?
credibility-all$ v: m1 H7 w+ }
;;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* |2 _% U4 i) Y& }3 Q4 c ^6 p, J6 r7 H2 H1 x1 ~: k
;;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
* r+ j+ n: I. C4 ?' `9 ]credibility-one% b! N( ^8 Z( Z$ P) }. K: 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( D1 B4 T( _3 L: C5 {" Y
global-proportion
, E) g3 \! z! ycustomer
" b' L( e6 g8 C) w9 Z1 `customer-no( n8 h! E1 E1 m) b5 e$ @
trust-ok
, N+ R/ z* U9 M+ W* qtrade-record-one-len;;trade-record-one的长度
) f& M* e4 @6 `, D! N]
! q4 g# N& B* Z1 a; j* z$ I9 l; f$ [: @
;;setup procedure
6 _& c7 W. F6 x1 a
- m6 z) S9 W6 x& }7 T2 S: pto setup8 y* x! r2 ?6 e2 H7 ]. T- m
( t. x8 r4 Q5 t& W
ca9 {- F: F. m" |8 R
( E7 X! G% U$ j8 T9 t0 @
initialize-settings
, i. r6 m& o7 J, T! ]3 L/ @: x G# {1 L8 W: `$ A- T5 x c# E# L% `. `6 Q
crt people [setup-turtles]( A1 K0 @7 D8 }- o/ n3 |
+ s# h# d! Z/ J7 n$ R3 b' |reset-timer8 \! T" n6 Z1 {( S0 `# n$ I6 I$ N
2 h. S' K' G* B3 x0 P, U
poll-class
( V N' v+ B4 X" P4 L( A8 ^0 ^" A) `# H' {
setup-plots
) ?9 }2 K) j3 U! C) A, b/ q7 P; Z. s" r
do-plots
( C0 W# X* S( T$ D9 ^1 v: f/ aend6 j' Q- `9 j* z5 `- D
5 p/ D7 R8 `4 y" f/ B" @
to initialize-settings
( u* G6 Z6 F* a$ f s. J6 w, ~( V
( j" H( _ \" q, aset global-reputation-list []
& o& ~( ?: ]- _5 r' Y/ x8 j. C
+ \3 Q9 [' D* W1 tset credibility-list n-values people [0.5]
5 ^4 J/ M- J( ]& ^, q) ?6 u0 a, b" _ M6 ?% O
set honest-service 0+ G8 s1 I5 l* G( X F
& I) i- |: q0 t* f, m7 P: aset unhonest-service 0( O2 m8 i1 s- w! C" \$ j# w
( u4 ^' N* y. ~7 dset oscillation 0) |1 |. A/ u9 d# @/ B+ g. c
; U6 Y% h' k. B5 V: B
set rand-dynamic 0
! l3 @4 W% p+ l* Q: _( n0 l6 B0 oend5 N" k' o6 `" B$ i0 Y, v
/ y4 o! g/ }8 {: E; H+ Nto setup-turtles % X2 k2 B0 Q+ b; V
set shape "person"5 l* P2 v0 h8 R+ J! ^5 D L. X
setxy random-xcor random-ycor% N; k7 n' H9 s0 z* `* N. i. |4 Y
set trade-record-one []7 ^1 o6 T9 g3 j
, g; }% ~" E- h2 Y8 hset trade-record-all n-values people [(list (? + 1) 0 0)] 4 L/ A- o0 K- p( P. S S
. H1 B2 M3 [8 p; U
set trade-record-current []" M& x' X- V7 N& D/ f
set credibility-receive []
% e% v1 a2 |: y/ Q# nset local-reputation 0.51 Y" Y C- ^; i
set neighbor-total 0) i8 c! D& Z: D7 }
set trade-times-total 0
% h5 M4 _; S' F/ Bset trade-money-total 0
1 O6 e6 j( D: H/ x. ?. bset customer nobody) }" s/ l) {- ~
set credibility-all n-values people [creat-credibility] _: |5 w- J& C6 O9 e$ K
set credibility n-values people [-1], z, S5 O' _' K; L2 q
get-color$ t0 S. \2 @: X) E) U& o
2 T' R R$ S0 c
end
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V2 r; L: Y0 {% d: B( r1 jto-report creat-credibility! U( y) t- t" _5 T- Z; y" g) d
report n-values people [0.5]
9 `( f5 Y& o# _+ u/ b: z- _end8 Y. ]7 r |+ j, a9 M8 s d
% Y) c# g' X/ x3 }: `- Lto setup-plots
) n0 ]( a9 \: k J8 V/ y: i6 f8 l' e6 I2 n- n0 ?! {( A: t& m+ S9 T
set xmax 303 n2 N+ r) m" g& ? ^7 u
% q0 t7 U' a. \6 s6 ]: Q. ^$ P
set ymax 1.0: V7 n4 A& H2 z, A$ P5 Q: _
' K! h* `" j* c |8 J1 kclear-all-plots1 g( s/ p5 @8 C
2 E6 M* N( I% n1 H& p' J5 s( {+ c
setup-plot1
+ e+ m0 U# ]8 |" W) J2 m- }) G" p
setup-plot2
2 E# v5 W S2 O' F0 j) |; n1 c1 \0 l0 S
setup-plot3* n& s$ y6 |4 q: p
end% S- {3 H9 k" z- K
7 J( \, m( R* q/ c;;run time procedures
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to go
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$ B( {+ V, W' d2 X! q2 ~ask turtles [do-business]1 N) A2 l, i1 g$ t- Q$ k+ O
end$ H4 ^7 V! X7 o5 z. H4 V
/ y# ~5 {+ x/ ]# I
to do-business
. `! _5 ^9 |$ H# M7 D0 p1 Z8 |3 e+ z9 B3 k1 O9 R
5 y+ L: N# V, `9 ?
rt random 360* R; ~5 @0 W* s+ b5 K# m
; @) g" l8 v; ?! Y( R& A4 J+ ]
fd 1
- v% t# q5 J7 n6 A4 d9 H& q* ]% T4 A4 Q N/ W+ N2 o
ifelse(other turtles-here != nobody)[0 x" N1 f& ?7 L9 E( Y
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set customer one-of other turtles-here
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;; set [customer] of customer myself# z6 E. f, m3 v: N- _9 E
" j* R3 o) ?- {9 I
set [trade-record-one] of self item (([who] of customer) - 1)# N3 T3 q9 S6 l1 a, F. G
[trade-record-all]of self* ]2 s$ p- B9 q5 H$ `! E/ y0 X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
6 y4 W9 h6 F+ T0 n' g
( A; {, u8 `+ `1 k6 z4 Aset [trade-record-one] of customer item (([who] of self) - 1)
% W X- N7 k. r4 e2 b[trade-record-all]of customer
6 ]5 z8 \ X' i6 Q# Q& ]8 W
% K* ~4 q6 g6 O1 o: vset [trade-record-one-len] of self length [trade-record-one] of self
7 C* e4 {+ n7 x* W
/ G' t' w4 H' E& f- }set trade-record-current( list (timer) (random money-upper-limit))
1 O3 C6 \3 {4 [' k8 d* T
+ L* D9 A9 w, g6 k6 g+ oask self [do-trust]
) O' k5 e5 t; ~. v;;先求i对j的信任度
0 ?* U# m) e3 |, D( v
7 v0 f7 v4 C" G2 O1 E, t4 p# qif ([trust-ok] of self)
' z$ }. l3 T9 H5 u! E;;根据i对j的信任度来决定是否与j进行交易[
9 ?) L; M8 O; Vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
: s9 Y/ ]8 w# N
9 s* r8 C$ O+ t/ Z8 ~4 N" r[
+ ?7 B7 D7 n* ]( |9 e3 N7 Z; B2 y1 B5 l4 Y* Z( z
do-trade, H) K& R& k+ Y/ d+ L8 t: \. y
) ]8 u+ ]: B1 ~( L( R# d
update-credibility-ijl3 i) T2 w1 |% t
. `; p1 l. X4 t- E2 e
update-credibility-list$ K& V. u! B% {" G6 I! Y# }
8 i9 I- H3 p" _+ }4 g; a
5 [% U7 ]8 h# j
update-global-reputation-list
1 ]4 M: R! `& v6 E2 W/ R/ |& V r. i# `9 E/ V( b
poll-class0 j; |4 A. q" B0 C P
0 e* V3 D9 _! _' ~
get-color7 Q4 ~" [# n! N5 A( e) F/ Q N
u! ~% ~. I+ w' O9 t+ m3 d]]
+ {, Q$ ^( v. d7 k- l3 z2 v% y3 {* j4 x8 v. r
;;如果所得的信任度满足条件,则进行交易
& F0 ^; F" G- `4 ]1 x) P9 }5 ?$ X5 T& u ?$ x
[
" T0 u5 J# T; ~5 z4 W0 \7 g% L7 j
; g# G5 _0 u5 b+ zrt random 360+ i k9 p+ A$ l) ]3 j7 d% |9 ?# _
% r( X$ |- k. C7 o( efd 1" d! {9 |( r* B
; a" d" d3 ~0 v]
! c/ ~4 s% ^* ~/ `) {* o$ R/ e9 a; w9 O& g( M _( O
end; [1 h) W. K' H
6 v* H* \+ r. B) M* P: {0 n! qto do-trust
9 K% l6 H! u1 f2 uset trust-ok False
! k* W9 y, C6 t. E y. N, B
1 U% ~! j' n7 f4 j% s) }3 _9 \9 y
let max-trade-times 0
! X, y7 A, M# A6 i8 oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 q5 }* R# a# z6 D7 _. H5 p
let max-trade-money 0# S7 n1 i; |) d8 ?+ p5 o
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
O4 L; c* O& d. }" {6 M$ qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ C* p7 D) o" l5 I6 b
. \( `1 j" v( G: e
8 {3 ~8 F+ [! [get-global-proportion6 k. @) `: I% P
let trust-value
7 z F5 ?9 W0 q0 R/ l9 Jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' }0 M$ d% Q* R Zif(trust-value > trade-trust-value)
" I& T7 ^/ K/ m& T( \" ~# \[set trust-ok true]
& \- L9 ]9 [- V7 x0 eend
/ ^8 V8 {3 c& y9 `0 O1 S6 j0 G. w9 B4 k- W7 D1 _
to get-global-proportion
( x* y6 l9 R' tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* y% @( y, }+ F4 V; A/ {4 }[set global-proportion 0]6 K, n( c" E$ j* T
[let i 0
9 x3 Q: Q. O, \% ?& [; A: }let sum-money 09 S8 Q: [$ [+ d
while[ i < people]3 @! w d! [1 {$ w
[
: I0 t# c& F! v! ~7 `4 r9 sif( length (item i
+ W) l1 y. ?9 _$ p$ X[trade-record-all] of customer) > 3 )
2 j! C; Y3 y* D, c& }[
. }5 \# P v7 J2 c# a0 Qset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): O7 u3 S" i7 l0 {+ X
]
9 { G% K9 |2 |* J1 ?]
8 }6 Q) u# ]$ W. {% _3 vlet j 0
6 r; f' I) t3 o5 \) flet note 0
" ~% H" }' D, ^5 K5 Gwhile[ j < people]
) D" C# C$ Q! v. ?[) j, i' B4 @$ Q2 b6 K: d$ B
if( length (item i
, j4 T* ^; q2 I4 @; n. a[trade-record-all] of customer) > 3 )3 P* `5 Z6 A( [ j/ ]0 J: L. e! |
[4 s; b' j4 D+ ]# \2 f1 d6 F, S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 z+ m% P# c" I! \6 O
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* X6 u- M0 ?0 H+ [[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 `( d# U4 B- x: P. ~/ V6 d, T]6 X! d/ A' N7 {
]
* m+ z( {" Y' w6 u4 U1 lset global-proportion note" \$ k9 p5 o2 {4 N) V. n& j; H0 d
]
+ x1 Y- A/ P) D0 m( Pend( m1 e% |- O6 O
6 z# q- G, A+ I1 h5 g G
to do-trade0 e! o7 N4 ^$ R( u8 D4 i
;;这个过程实际上是给双方作出评价的过程5 U: Y7 n* B9 {9 P+ ~3 _' P o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& @' t2 y/ J* ~' O8 Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ d9 k" ] b+ E! {( S' h
set trade-record-current lput(timer) trade-record-current
" `: ?9 x% T. l+ };;评价时间
. @, o$ n) Y: C8 ~4 c( [: |" Pask myself [
" g' i- `: {6 U) P) }update-local-reputation+ f: V% F. v' _( L
set trade-record-current lput([local-reputation] of myself) trade-record-current
4 w: s: T( ~% x1 _]+ w0 u/ H2 e6 u1 P% h$ q2 ^, B0 S
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 f$ G u, p" z1 i;;将此次交易的记录加入到trade-record-one中1 L" }7 M6 R1 U
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): j4 C! r* `& n K- |8 y3 @
let note (item 2 trade-record-current )
, o% Z$ Y0 _- _, ^set trade-record-current' @2 d2 ?- Q2 n8 \
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 b$ W5 X5 P* c' Uset trade-record-current1 B: l* D. k4 i w8 t1 o3 M% }7 R
(replace-item 3 trade-record-current note)
: F7 |4 e1 p8 O) K9 g
0 t S2 a( M9 ` Q; Z7 m; S- ~/ Q
ask customer [
: z$ j* B' m0 l2 aupdate-local-reputation( N2 B7 g$ u& X) E2 d. J
set trade-record-current" U0 b6 @ U5 v" g3 }
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& P7 t6 _1 h. a- b]
6 q, E5 C1 R3 l$ A# ^1 i5 r M% a+ |7 X
9 V8 E# `- C) D, C6 n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ b+ u- K& Z0 L7 z7 U- p3 [( U0 ?6 V7 l( {/ A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 _ J* Q O: w9 ^/ P;;将此次交易的记录加入到customer的trade-record-all中6 m, N7 j) D" z0 O; V8 F I
end
1 d; U3 n8 v0 J' d7 S# J6 g% X/ B7 N/ [7 q1 O- P
to update-local-reputation6 I* }8 \. a$ C4 Y0 d* r3 b
set [trade-record-one-len] of myself length [trade-record-one] of myself
8 w3 P$ `" M! c9 @' R6 v' V, Y0 O$ z. v9 l' S/ E
6 ?+ R. t9 m- Q t/ Y+ n6 f: P
;;if [trade-record-one-len] of myself > 3
8 x5 d$ @; ]' ~8 }3 D0 L+ _& {update-neighbor-total; [: U7 j' B: h1 Z/ c6 i
;;更新邻居节点的数目,在此进行% T% r# q ~& c9 C2 d3 d( H9 M; J
let i 3
; ]. `( B6 r5 p) _let sum-time 0) l3 } M# z( @- R5 x5 y
while[i < [trade-record-one-len] of myself]
0 p6 j' r; _4 V5 r/ Q1 i. O8 D; l5 {3 w[ q) e: v7 I3 `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 `' _; H2 O! W) \2 D7 g
set i
2 J/ }$ A2 V9 Q$ v' C5 u( G% s+ c( i + 1)4 Z/ N p, P' k6 P
]8 {! S! w( {2 E1 {9 r) ^
let j 3 b' r5 Q S6 J) _7 z
let sum-money 0$ Z% \( D2 Y t: m9 P
while[j < [trade-record-one-len] of myself]: n) F. `8 L8 w+ y4 ^' _
[% J4 A ?) ~3 p0 N5 D
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 p. V0 A2 q: z7 @' [
set j& A8 m! |. K! d* q, n6 v& X
( j + 1)
* u* c* ~+ Q- j9 f( m7 p T( d# N]3 m6 E4 s0 h1 Z8 }' o/ p
let k 3
& T) h* y6 e- Y, s0 @) F0 mlet power 03 b8 W, @: j; B0 O" v: [5 H F
let local 0
: o y( W: K' f: T4 x( @while [k <[trade-record-one-len] of myself], ^- g! \) d) m" C' F( q/ Q- y
[
Q$ t+ L- @- Q! d( K7 `" Sset 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) ! f5 O/ B# Y7 W* ?8 ^
set k (k + 1)
# M! D J3 c( i, r7 t% @]: \) l! B! x4 c3 b
set [local-reputation] of myself (local): F' O$ n" o+ I" N
end& W7 B) ]8 G5 E# `7 E( ?- q
1 c0 q/ R; M5 {$ Ato update-neighbor-total
! _7 W! Q7 l; y
% m8 Q( _6 q; _+ Y2 U) @; Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ `3 B0 E0 Q. v2 v2 [1 P
# S! y w/ @0 d( H u, M; l
, x7 s) H& U5 O5 ]. T/ Pend
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to update-credibility-ijl
7 Z( w' ~# J. k, D
* ^2 D; \$ S) Q, k1 s: [9 L;;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。
) e2 O9 d L2 Zlet l 0
3 b( ~/ H1 _ \5 `while[ l < people ]
, I& u! r' [ G$ ]- C;;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
4 T9 z! h3 [7 F! ^; ^5 @, C[7 k( f) C! w2 z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 ?/ O, A: y0 l5 K: e* K
if (trade-record-one-j-l-len > 3)
4 ^) ?, {+ Q1 d% p" }[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-one3 C' _" O! ^2 e4 C% E
let i 3
; N3 X6 l/ p4 u1 c: s$ xlet sum-time 0, z3 d! }* l; X
while[i < trade-record-one-len]
8 L5 P, a- Y# z" f( m+ a[
4 {) x/ ?7 Q0 Q3 x: Yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 h$ w0 I0 x0 w
set i
9 I. L/ k) J% q! p k( i + 1)& Y b6 @9 R! K: e) _
]" o O& u5 a+ R# O7 t* T" r
let credibility-i-j-l 0& V' f2 c, l5 G$ ~& J9 P, w
;;i评价(j对jl的评价)+ H7 c- q( \3 [! m: Q) Y4 _& W4 q8 R
let j 35 a2 `+ N$ Z5 X
let k 4
3 W' A0 ^1 h! X4 Q7 cwhile[j < trade-record-one-len]
$ b2 R2 G; B1 o: f/ f[
" B; A( U. L6 l; qwhile [((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 v. M4 F. S8 Q$ y4 M
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). |0 p! ^- P0 S$ d+ ?
set j: j5 m2 j3 `1 N% ]3 \! h2 _
( j + 1)8 R+ [- L8 o) Y) V+ W9 Y7 n
]
4 V; f, Y7 {, _' A' ~* y: }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 ))
* A+ J$ r$ C& M( }4 G* Y, L
( A' V. e5 b8 V! g, K3 D
; S& v4 Z- M4 g7 ]8 w& \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* A, B+ i) [+ O# G;;及时更新i对l的评价质量的评价5 D# J5 q* ^, r% y& G, d) o: Q7 ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- p, r( J: l" B& e Q6 J
set l (l + 1)
- {# Q, f* g0 G6 a* z]6 }- N) P$ q0 _1 q Y$ y
end
$ i% O; K- R9 S3 y r
i# T9 n# [# c0 \to update-credibility-list
1 w) V0 o. C8 o+ _" @let i 06 n2 o! t) p/ `
while[i < people]
& N# y# l% s5 T3 V. i$ e" H" p[
6 y+ _+ e9 b6 b% \let j 0
5 m+ J# [! r6 g0 @, plet note 0) E e/ s! Q) P
let k 0
+ M m7 H4 a3 N. h( e$ \/ X' N9 b3 |;;计作出过评价的邻居节点的数目 ~& c5 k/ `, a8 a6 t/ l" Z+ X
while[j < people]( I# Z$ w1 \, u- e# s- p; Y8 I/ J
[- E6 S4 r5 I& y; e% o8 `
if (item j( [credibility] of turtle (i + 1)) != -1)
( v/ h. X% Q" ?2 w: R' G9 S;;判断是否给本turtle的评价质量做出过评价的节点
/ u" D( L. B" y! P' s[set note (note + item j ([credibility]of turtle (i + 1))). |9 m0 P7 `; ], @2 ~& ~2 I2 m
;;*(exp (-(people - 2)))/(people - 2))]
2 s, P$ Z' H) b! ]$ mset k (k + 1)
" L6 n9 k8 f+ ] p9 k]
# R- }/ b& G& S* f3 w( Rset j (j + 1)
" S/ N, y2 o7 e& g- O0 c Y8 B]1 I7 u* s5 A; e$ G! ?
set note (note *(exp (- (1 / k)))/ k)9 s% Y. ^2 M0 ]- t) ?
set credibility-list (replace-item i credibility-list note)' m" s+ c/ ?& @4 v
set i (i + 1)
/ Z, J$ |, M& W0 F- S]* v. R6 x+ I' W5 y- P" S
end; M8 ^% K: v) I& @/ o
) c K2 t9 U$ t5 W4 D5 Qto update-global-reputation-list5 p/ Y) e) u* L: _8 t5 L# _
let j 0) b' H7 ~7 A; U+ m
while[j < people]+ ?" ^8 Z+ X* J; F6 F- H5 C# B
[
5 T) U# S- x/ ulet new 04 G' l: T" p& ~# T8 u/ }, N
;;暂存新的一个全局声誉
6 b$ M; i/ C: O6 W! v* X- b7 jlet i 09 \: `. |) r$ R Z
let sum-money 09 t4 |% b3 [+ V; K! E8 }% b& [
let credibility-money 0
, Q+ o2 O% n) d7 A7 Ewhile [i < people]
4 r9 `+ a& a' q$ C[
4 P$ h6 X/ ]$ Dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 M) j0 G5 V4 Y" \8 {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 X" {" H" y+ i" [% h8 Mset i (i + 1)
8 Q% f0 ~' x' B) t# G]7 @! z: `- C9 K4 g
let k 0
, ]$ j$ B' c7 {+ F. rlet new1 0
& q8 V8 w- g! t( ^- E Swhile [k < people], @. p* h( J- _# f# S/ q
[
, R0 m" i' R- a4 ?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)
" S6 M) Y5 C% ^. P0 M+ [set k (k + 1)/ x" Q1 n, c" }& D
]/ u0 G) ~+ g! N$ l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% s$ t& Y6 @: q; \. M+ \1 fset global-reputation-list (replace-item j global-reputation-list new)# I o0 l! W& E* y% b( s! {
set j (j + 1): C6 i" O" m7 ?2 {( ~) p3 N1 @
]# r* A/ g) I. L7 F6 Y! X1 ~. Z
end
% q w( ^ ^, P# w
7 t3 K i! I8 S( N2 S; E3 t1 `' ?3 |8 p- B3 T$ p
3 e9 ^/ p, w/ V ]
to get-color
3 v% T3 J' S, J: ~4 M/ m3 f9 ~; o+ D# v+ z. o. X
set color blue8 |' {' t, k4 M* C& ]9 p ^; ?
end7 J- k/ U0 X4 G$ d: v7 l0 @
% ~0 n' W, s' v7 u$ c, Rto poll-class
% e5 F2 A4 y5 c4 Oend, i1 f" k+ ~( u8 u! C z/ U
: t8 E% b6 t( Z: A
to setup-plot1: D3 l: F) V+ O( Q
. O4 }, m2 q" b& v! _, d! ]set-current-plot "Trends-of-Local-reputation"; p0 ^* J4 E, d$ p5 ~6 ~8 o
4 i2 p4 H" V* h( R+ [9 Oset-plot-x-range 0 xmax
0 |4 e6 p* Y9 B, v* H
3 G* x& _' f. l" ~set-plot-y-range 0.0 ymax S2 I7 Y) M+ O, N7 F W
end
7 o1 ?. w+ e# r0 f# N0 d @2 g) I+ D: g
to setup-plot25 W) q/ b7 Z7 C' O4 l) H/ c4 X( d
$ D+ ]$ G% W: Zset-current-plot "Trends-of-global-reputation"
- U& X& N# z6 O& U, ^1 A. _+ M* u+ ?. z6 A
set-plot-x-range 0 xmax
4 {5 y6 G3 f$ B( _) W
) O) {' e( L/ J) o9 }. }set-plot-y-range 0.0 ymax# @9 i7 ]8 B6 e# m+ t6 i0 M
end4 U6 L$ v. V( I% K- P$ y
# ~& ~/ f* I& m' Lto setup-plot3
4 M+ J: B/ o2 f" t
f2 x. C- g+ P9 Rset-current-plot "Trends-of-credibility" u& `$ m# I, G8 e' s) x# O
0 F6 h0 X/ |6 ?- f- |; jset-plot-x-range 0 xmax' ?% k; q! E1 P/ b/ _- M# Y
1 \- c/ B" H- h! L0 C/ o0 b
set-plot-y-range 0.0 ymax6 K* K7 u! U- S; U+ _
end) Y: D6 w0 x0 p* W, B8 b
% k) K/ N$ R3 \6 k) u0 m8 [! y4 }
to do-plots( i+ D l5 n+ a8 }4 I+ i
set-current-plot "Trends-of-Local-reputation"
/ U8 o4 ]; f+ n3 q3 a: Sset-current-plot-pen "Honest service"/ P; P; G) ]) n4 f) D
end
+ x. x) I" j2 T4 Z. V$ S; Q
7 |. b' q: l& W0 i[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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