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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
% l. ~$ J& l' E' {7 t& r, \- H' vglobals[* j( ]9 m1 d! F: X |5 u: D9 D O' F
xmax$ P. s! t- I3 D$ F) _0 d" r, ]
ymax
h3 l; g, t% q, K. tglobal-reputation-list
8 P! Z* a9 c H) k
w: G6 U- p9 U1 h6 t;;每一个turtle的全局声誉都存在此LIST中+ @: p+ M. |1 C
credibility-list" h P0 N% |) k; ?2 t
;;每一个turtle的评价可信度
2 b1 S' a* B* Q* i; zhonest-service
* m0 B1 l" e/ f& [0 T: I$ dunhonest-service
' F4 W) ]$ H5 D- ]' Noscillation$ p9 ?3 R2 s9 ^0 h! B/ I
rand-dynamic1 }) t6 `$ O, F
]
! ]" o. q3 C3 v" [# [* d. n7 m: ~7 H' a3 |! ]$ r% ~: z
turtles-own[. K" i3 R- T$ p. I; ?, c2 z) a
trade-record-all
* I u$ U/ K# l$ L( b;;a list of lists,由trade-record-one组成
; r9 ]3 T8 g( }* Ytrade-record-one
6 @6 o' y! w3 F9 ]6 l;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; r5 o- e, S% `/ s# H
5 k: b' L% S" b$ h' };;[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]]. M" T3 Y- a0 X2 V& n3 c5 f8 e
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]
5 R$ j! U) H: B6 t) R( ]7 R& B9 ]- L2 bcredibility-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# i* _+ w, D7 A2 o
neighbor-total# g3 b- H# h+ K9 Q. G. G n5 i/ M
;;记录该turtle的邻居节点的数目
: ~1 P& g) a) mtrade-time7 P" c# Q0 h& G7 v9 k
;;当前发生交易的turtle的交易时间; g5 A' S6 j* X! T
appraise-give
$ z; W. T# l- G; V4 X1 u& U+ D, M;;当前发生交易时给出的评价1 P# }8 J8 U. q N
appraise-receive
% R; r& e1 I5 ~3 t/ ~$ `$ |;;当前发生交易时收到的评价2 s7 b, D, ~3 F5 R0 o0 Z. W8 }( x i
appraise-time
! \; ` D) E8 n;;当前发生交易时的评价时间
* n: ?* H- k3 k% |) z, Tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
' m) X) O1 m. P- ~% g! Ytrade-times-total
% H4 W! `: q, z) T' `- a8 \8 b8 L;;与当前turtle的交易总次数
; S! a" y" T0 c& u( [trade-money-total K% B8 |+ @# S0 Z
;;与当前turtle的交易总金额
5 w4 X& Q( }1 w/ G) Dlocal-reputation
) T$ S! Q6 N" K$ |* uglobal-reputation
* a: O0 R B4 p( ocredibility9 {" k8 h% v8 F8 ~$ I5 v
;;评价可信度,每次交易后都需要更新) G4 f2 j; Q9 ?0 ~4 G: O; N# U
credibility-all
6 z" D" a9 ?% T5 V8 G;;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
% O$ g }. x2 K. b6 Y
- S+ [5 p+ S" i0 B- c* d;;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0.58 v) V8 @/ x5 _9 k
credibility-one+ K- u/ b0 V" z z4 V8 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
8 Z9 x- W A. S! z# g: `- kglobal-proportion3 G8 l( y/ |# Y& x9 q
customer A) z) N5 L) B6 E# h0 m5 E
customer-no! E$ l4 y8 i- w+ a5 ]1 [' k( T
trust-ok
( c2 E1 J4 |0 v- E/ E) G7 Jtrade-record-one-len;;trade-record-one的长度
# |6 ]6 ]5 D( t. M]
! [% W# z% V9 V9 s9 D8 g: ^7 N. c3 x2 d7 l
;;setup procedure
o- O7 @! c9 v$ G/ q1 \) a( K
" P5 [4 o: a+ ito setup/ a# K- x6 q/ l" b9 b" @; S
! Y% H- Z, a; i5 V# |1 Fca2 t; s4 L; }# H' s! z: K3 @
/ ]8 v" Y- \3 b4 c- rinitialize-settings3 V5 |' E+ w$ u" |5 V. F
% `0 l5 ?) n' i& n* mcrt people [setup-turtles]
! [3 S" F% f2 o8 e
3 p5 e5 N* z: Mreset-timer" z6 I; d k! x5 z1 i2 t
% R9 ]4 v# x, D$ R @' D6 l3 Q; Y
poll-class! O6 `* }4 W. `& n8 e
0 O* P9 W- I' C( j! vsetup-plots
1 C4 g4 D3 b4 f% u& m$ y9 Y; j" M% W
7 I, x* Y3 t$ J+ ~- g- Q! Ndo-plots
5 z4 W2 I) f! J) ~/ }2 W! A3 Rend2 s/ I/ d# I$ Y2 B% _
6 f, R, i3 u; |% x
to initialize-settings3 y5 o: A- P- i! v' h
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set global-reputation-list []
7 m% X& x) c9 V$ x% o& e
3 z7 F$ I8 h p0 v% ^$ B, eset credibility-list n-values people [0.5]9 {" [7 [4 N' S. k: c! {
# [9 H' Y+ |! m+ P; o
set honest-service 0$ V/ H3 ]1 }% N
0 ]3 S+ b& D, L$ I" b
set unhonest-service 0
7 ~ S1 B' @. N" T4 w2 e7 Y
p0 d' C" K+ I5 A7 Fset oscillation 0, h% a! r$ W0 Z- b" y# A
' g' L0 S& c8 X! U0 S0 ^set rand-dynamic 0
9 y1 d& J# ~) T. _# iend
# _# E% P/ T1 K' s' t- e# H) V* ], N
to setup-turtles
# g- U9 {: z# M0 o) a8 _% tset shape "person"3 |# u L' _) q0 R6 N3 {
setxy random-xcor random-ycor4 z! E1 [: u" H7 H
set trade-record-one []
) ] u0 j; z9 O/ o
" W2 E# a/ j3 {9 U( y; Hset trade-record-all n-values people [(list (? + 1) 0 0)] 3 M( _" l7 A: i) y2 t
: D4 B) z' ~$ S& S) E
set trade-record-current []
1 Y$ l; g* _1 |% ~% `set credibility-receive []
+ ]8 G- M# v, ]: x# \set local-reputation 0.5
" A9 L3 O1 S. c1 H9 Aset neighbor-total 02 B3 ~8 D# W" g8 Q+ n5 F
set trade-times-total 0
_" L0 S$ R7 ^6 A3 t1 Eset trade-money-total 07 R* T1 Z' c+ {
set customer nobody9 i5 c3 F5 V0 n1 b
set credibility-all n-values people [creat-credibility]6 i" q: [& s' d3 u
set credibility n-values people [-1]5 _ j6 g: Y3 L3 ~# z+ Q- ~0 N0 _8 k
get-color5 L6 M: X1 f2 p" U8 Y% m% x4 G
# R- p2 h) @/ j
end/ k0 C ~8 z, }' K
4 E7 K3 q2 a" Q6 A+ }
to-report creat-credibility
$ Y+ b: }0 S$ f) vreport n-values people [0.5]8 `- X' k. ` |
end% J# j' ~9 \1 a
5 P$ n" G s0 }( V/ b* L
to setup-plots
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set xmax 300 b# m5 o, I. Y/ ~
! |5 S6 Q5 U$ [3 \: ~6 c
set ymax 1.0
- ] w& [6 W' F" c# D- I1 N2 {0 b
clear-all-plots
9 J9 @2 D& S+ G; [& A. E# N
3 }2 B' d/ S- {) p1 Esetup-plot17 _0 P: p' k3 x( f5 @: A! Z! Y( v
# n! ~; z3 ~( h9 ?. C, E, N; n9 fsetup-plot2
; A T2 C E- d
; G( {. j9 ]9 g- Y* Qsetup-plot3
4 u8 p4 u6 ?9 f8 T; H Tend
7 l( l8 c$ K+ j0 j4 J1 ^# @6 v# d( C! T' k4 f" q: `. f. V( [
;;run time procedures0 u! G* g" u, L4 h0 W. `# G V
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to go: |7 p/ |2 C) p, B9 B2 z0 Z
5 s- v$ @1 x- [: U( Aask turtles [do-business]8 l) B0 f }( N8 e+ H! L' q
end
2 f9 S9 q; J- c
4 d+ |/ R- M0 [! qto do-business K5 I9 ~% }/ ?8 O
. p5 L2 H( x, _. a l6 t- a; Q" M' y- [$ r/ I
rt random 3604 Q6 [" ]/ w! e( P2 X
" C/ t+ ?* j- Q2 r5 zfd 15 ~% G# N& }6 X: q
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ifelse(other turtles-here != nobody)[* ]$ s6 m: j8 @
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set customer one-of other turtles-here0 \3 _% m0 l' z
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;; set [customer] of customer myself, L$ G7 c$ | b- M U# M
% c* }3 a9 ^6 d8 jset [trade-record-one] of self item (([who] of customer) - 1)
1 e" o+ l7 C. S s) I! }2 M: D[trade-record-all]of self7 s5 F1 Y+ h0 _+ V5 U
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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# f: W' f$ x: }2 V( y* ?set [trade-record-one] of customer item (([who] of self) - 1)7 P6 W" q2 w7 G7 s8 {
[trade-record-all]of customer
: o% ^1 ]" |1 x* V- p- e- ]0 ^7 Y% ~6 A9 m9 ^5 L; l
set [trade-record-one-len] of self length [trade-record-one] of self
/ U3 Q' o: _5 o0 |' B7 l+ W
% \4 }7 T# [) o& g& qset trade-record-current( list (timer) (random money-upper-limit))
3 q P; s- o- l( t; i( r. c) E* }) P! H! y) D0 K5 M7 Z
ask self [do-trust]
7 }' O- P3 L, v4 D7 U% d;;先求i对j的信任度- E! F6 H" j+ K' H7 Z1 p4 P, N
. } x- D7 j: B- @! b3 g! g- a
if ([trust-ok] of self)4 ?6 E f, b* f+ W5 ?
;;根据i对j的信任度来决定是否与j进行交易[
' ?: p4 ^" L3 }; Hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
- C) A* I! ]* m( _1 K: r& n" S/ Y+ @0 ]4 u' U
[3 c# \1 C$ C5 P
9 D& i+ y: J9 K6 n2 C! ?
do-trade
; C0 [' ?5 u) I1 I4 I5 Y+ y7 B" U& U% F9 y( ~
update-credibility-ijl
: q5 [$ O+ \! t+ j* ~ m6 V. u0 k& J! }) a$ J
update-credibility-list! H; V% g; O9 g- K9 n! Q
; ] f' u! f! J6 s3 ]
% g# ?1 g! r, H% |: ? A/ cupdate-global-reputation-list3 D" ^$ K. z, ~3 t, n
# a: g0 n' e- w! t$ O& b* m
poll-class
/ p! T6 M* H- c s8 P2 q& ^4 a4 N; ?
5 o" h% U8 T' g- e1 s2 \get-color. \* e; q9 e: Y) }/ @$ O
9 i9 A! d/ H: Q+ b. `; ^]]
. ~$ r" m% _: Q6 @, s/ Y. G# g2 |5 A
: |; Z) b6 I; s* y7 B: X;;如果所得的信任度满足条件,则进行交易
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[8 o" G. R3 `6 t, M: ~) p
- x0 e" F( C. I+ |
rt random 360
% K! s4 M6 h x
' f5 ]7 f7 i: |" [( pfd 1
: X& [% E4 y" U% p( M+ { h+ w% o+ v" ^' W
]
$ N, g0 A4 n9 X" x3 W6 D- |2 ]7 s$ H- O X( u0 Q# M! s
end
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to do-trust
# U3 Y: X% x3 sset trust-ok False7 r( w7 }6 v: Q9 V
- e1 F. m. w& {, W
" q7 `* v2 D$ R
let max-trade-times 0
& C2 l, ^) u1 l9 _+ Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* {0 I0 [& [, \: C. U2 n8 G
let max-trade-money 0
! F/ |+ v& H( t2 ~% E; n+ ]+ Pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 c6 Q0 E+ ]# Y) Z) M2 A" K0 o
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 R+ v. y
+ ]# U8 m9 z4 W$ [; E& U
% }4 q9 V5 j" F+ oget-global-proportion! G N& ], J4 T; v. q8 o
let trust-value
/ K1 w# z0 ~9 L; 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)
: T" \" B/ D8 N5 {$ U9 Sif(trust-value > trade-trust-value)' S- I" u$ r, D6 {. O
[set trust-ok true]! @4 M6 |2 x3 K: [
end; [ C0 z. a+ V) j7 \- ^8 I
3 m( N7 o' e: h4 X
to get-global-proportion
, w# W! }7 i5 Z1 ]( d; n- oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ ?3 t. n) K# E2 j/ L2 s3 L[set global-proportion 0]$ j7 x' } }- J/ `0 E0 E, {
[let i 01 T* E2 _7 K( Q7 K# l5 v. y
let sum-money 0
, G$ V0 e$ K( b1 swhile[ i < people]
0 _- T( P3 G u1 C4 s! j6 w[
7 Q! o; y0 A+ sif( length (item i
7 \2 H* }. `- ^# p# I+ C+ q% g1 l: k[trade-record-all] of customer) > 3 )
( |/ r7 A8 ]3 F5 M0 {* H/ A[
/ L1 I# ?5 p {1 w( g0 G6 Z' Qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 u! E# J$ n( P$ `' y/ M) M, r
]
" T8 M& \# e N; R2 B" J]3 w) G% @/ p2 T$ P- y! h
let j 0+ W5 z; B6 q4 q' w4 v* @$ U
let note 0
& G8 {5 v$ f$ r/ [, k5 f3 y9 Uwhile[ j < people]
/ t! [8 s: y) E, {[; U( n; t' f# c1 L( {5 t
if( length (item i
$ y$ ~( o# Y, k. ]% T[trade-record-all] of customer) > 3 )
3 @) r1 t# y# p1 X1 x, A[( T& e M( d) e# J. p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 C+ t8 f6 h7 U2 |8 X
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. D+ L8 S1 F3 R" ]
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, |. J+ b! _1 H; a2 k- v0 T: y6 ^]! O! [+ v) Z( R
]2 F, n2 z6 ?( E2 _, f3 Z2 x
set global-proportion note
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! u/ j" U) W0 ~ b8 d( dend+ b6 p% Y/ i! m g$ O! T* n0 s" c
5 W' A" E" m9 Z$ Q8 b9 K" Mto do-trade6 z3 F9 ]& ~; Y) c
;;这个过程实际上是给双方作出评价的过程
" A+ @; c4 k2 G! e! P( ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# N7 J+ ]0 T8 N& k( L) j. n6 e1 D8 oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 ?; j2 ~# g2 \2 o. |
set trade-record-current lput(timer) trade-record-current
3 r4 J% ]8 {7 H" f;;评价时间
: O" Q0 p" Y4 g Y8 ^) B' |3 g1 ~ask myself [
( x. t5 t3 i, N) I% Yupdate-local-reputation7 R) {+ R' _2 F" T: s: E
set trade-record-current lput([local-reputation] of myself) trade-record-current
( f8 {. n/ N! n9 p]
/ V- E4 n3 ~$ y2 p* ^8 q3 |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! Q# p/ D6 }/ O1 {2 r;;将此次交易的记录加入到trade-record-one中& ^6 T5 K0 {/ C6 c6 z+ }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 K+ G+ D' E, Q" m; Llet note (item 2 trade-record-current )* A: v5 O; N& G; r# o
set trade-record-current; k, ]* ~" b8 o5 r4 b) r" c
(replace-item 2 trade-record-current (item 3 trade-record-current)); Q& v7 n$ k6 F; y/ l0 N0 X3 A
set trade-record-current
1 W3 b* E+ f* B/ y4 W( s(replace-item 3 trade-record-current note)
w% j+ R8 j+ e+ V! ~; p3 v
* U( b( Y' n8 w2 n
% C5 Z5 E% F; ]8 f2 T9 C! v( cask customer [
: ^- K9 m! t. F5 W; Dupdate-local-reputation# U$ {$ u9 R. x5 b
set trade-record-current( y( l! b$ c: u2 d* c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 {9 O8 j8 `, R! w0 l' U, H6 z. z]5 ]3 ~1 e* z8 [1 \
9 T4 L+ S( f) P
, T3 U' p6 F# H6 t3 mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
j+ E# v, I5 R5 R( |7 U, i8 n$ l+ n8 R' ^5 k, H/ e
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% G5 ]9 }; o. X# ?1 H! ?* L;;将此次交易的记录加入到customer的trade-record-all中; n% K- s! b8 _) |
end
; X% d* W3 G: d. R) K6 }
# h8 u1 m! [: R' m2 F' i+ hto update-local-reputation' |8 G. L4 K, y! W; S
set [trade-record-one-len] of myself length [trade-record-one] of myself/ s* l. T) ~% E |" |4 Y+ `* l
" `! j$ v( }" y. w
) b5 K, T F8 h2 i7 Y;;if [trade-record-one-len] of myself > 3
9 U! \& N& A2 P+ ?+ \" Yupdate-neighbor-total; d6 J1 t% o) ]% t
;;更新邻居节点的数目,在此进行 g. d: D/ _2 _& ~4 k( s- h
let i 3( Y# L) Y# i+ T3 U' u
let sum-time 0* m2 N4 |- ~+ E; _" z/ i( p5 w
while[i < [trade-record-one-len] of myself]- E2 q6 z2 A3 B/ ]
[( a; a' R* h! E6 M" z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 J5 S3 [6 \9 t# h0 z0 n' k1 ^
set i3 k: j y, I) i
( i + 1): s' P, f7 F3 O- Q1 Y0 n
]0 |4 i6 X8 E# ^7 k, A
let j 3
6 b* J4 c' \3 Q# V8 }0 [let sum-money 0
& X9 I6 Z3 p. }8 s. M/ Xwhile[j < [trade-record-one-len] of myself]
. ~& @1 ^2 U9 R: ]; p; i* j4 ^[
; ?' |% x3 [ Q* A6 o. gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& D1 `/ ?1 w0 |( a& K jset j# x% ]0 m1 W/ e' _* }2 [
( j + 1)
. ~0 q z" F- I, F]
' H1 ?, I# y V* ]) ~let k 3
. _5 f5 ~! L6 E: G7 k2 clet power 0
0 R4 a5 ^* P# w% g+ k2 vlet local 0
+ u4 l& H8 h, ~$ `" G; a* Dwhile [k <[trade-record-one-len] of myself]
2 t- N. y+ a, @. q& v+ O[6 E3 c% U4 W- v3 j3 O
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)
* e+ }' \- T( m! R9 R4 p6 iset k (k + 1)) V0 a: r$ w Y5 j
]
3 e; i+ |8 x, j" n6 o; w0 S' c r. eset [local-reputation] of myself (local) x; O2 a1 ~+ H: I
end/ d* T3 r" }' U- B1 C- @
7 P9 \+ K8 `% \: M& B
to update-neighbor-total; J% F+ w2 ]4 M7 q& \
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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0 n- `/ d% Q- [: J
end- v- s- D& n# r8 v6 |+ N
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to update-credibility-ijl
$ j" q. h5 }, F3 k. {* I; a% d+ ^, v! ^9 T7 k3 M
;;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。" ~' X% D9 Q h" e
let l 0& u L& g0 A* [% v5 c7 k
while[ l < people ]
' J: y" {1 \; n- h/ e) \;;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)3 q3 A% i, s+ ]3 [8 e
if (trade-record-one-j-l-len > 3)
9 k; S0 L! ~1 t4 ?6 L. h[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
, B/ H; X! b! v* }9 }( w: h0 olet i 3; G) k7 B' d; Z. R% f
let sum-time 06 E" h& D4 D4 j$ S {" p5 ~
while[i < trade-record-one-len]) p/ R: D1 W1 g3 w9 D
[* k5 o$ X* a2 X5 I+ W3 ?; B
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), n. P6 Q+ H. A' M$ | Z; ]
set i
9 g% [) \! G# E* s( I/ x( i + 1)+ P7 m' D* i; C. O9 h+ x. I
]
2 w _+ z$ A8 ?let credibility-i-j-l 0
n2 v% n9 G- X4 I9 P" e: @; s. _;;i评价(j对jl的评价)
" ]1 r- X1 s/ M+ @2 `, r: qlet j 3; Y0 D' U4 d7 y; ]! ?" j
let k 4; m5 [. Y F/ E3 P8 `2 F; L6 ^7 E
while[j < trade-record-one-len]2 }# r0 j/ ^- u7 e) i3 C0 v
[
. I6 p1 H0 T# z" r$ zwhile [((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
+ K7 p% p3 Y3 O5 w. Sset 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 X5 ]! L% r. Z+ P( O) D: i$ Oset j: g7 N7 U J( D+ W- K
( j + 1)
- z0 ? W1 \8 c4 o5 c% o1 A+ ]( n5 a]
% f" T: R0 g8 }& l5 L5 Q- P) ?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 )) f- y8 [( ]: k/ [9 C" J
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% t$ m8 R# b5 O- hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& y2 n" v* B5 O9 r' H' f$ A;;及时更新i对l的评价质量的评价$ I# D* ^) z" c Q' u7 d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 i9 |) c3 k$ j7 A1 n/ k8 F9 \set l (l + 1)% x* ?) ?7 }) {7 W
]
' g. y8 D* R: \' N' Pend
?% A- U' }: s/ W% l8 V
* {. B. l4 S5 ito update-credibility-list1 K3 ~9 G8 k+ ?5 t" R
let i 0+ m! h3 k0 s' C, K
while[i < people]' [! Z& K0 [. L. ]
[! G) z& [" I# k; ~+ }+ o
let j 0
( [1 z, [7 R/ L5 E& llet note 0
1 ?$ a/ V- w0 j9 z% R5 Ulet k 0
2 O# d: H6 g) ^0 M) X7 O, b+ i: ]; ^;;计作出过评价的邻居节点的数目8 d, R) \$ N a; x; t# o% k& N
while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
6 o( |" q+ s9 n1 \# ?6 s# k, g3 j;;判断是否给本turtle的评价质量做出过评价的节点
& y$ m' N3 b* X% Y% m/ E/ B6 K[set note (note + item j ([credibility]of turtle (i + 1)))
1 h. D' w5 o: U, T;;*(exp (-(people - 2)))/(people - 2))]. [8 R5 Y6 v3 w) p* A" {
set k (k + 1)
X- v* j: k0 b: T5 l7 B/ R, B]
/ `: y0 a4 g5 E D+ c3 D9 ], g5 gset j (j + 1)
: f4 h' ~+ w, ]5 P- d1 R2 M]7 {/ D# g$ O" @8 {
set note (note *(exp (- (1 / k)))/ k)$ Q% ~9 f( M" Y6 {
set credibility-list (replace-item i credibility-list note)8 @3 }% Y: Z) _( e" Z1 h
set i (i + 1)
5 Y9 }* C" u; z" O) C; h, X]8 ~' F$ ?, T* ^$ l* V
end
i' ~9 w4 w% n' H
9 Q+ n" b$ g4 k; ]to update-global-reputation-list
6 m5 z" h# m/ a; o2 \% |7 Nlet j 08 ^7 L. T2 [! M# W
while[j < people]: `1 _& q* s* T( {; i, L# f
[
9 z5 z6 Z9 j, g! _let new 01 F2 D1 I$ q7 B [
;;暂存新的一个全局声誉
, \4 B; b, a! e clet i 01 h8 C: q; G; j
let sum-money 0
' i/ J* ^( e% t R4 D2 Llet credibility-money 0* q/ W; H9 t1 ^; E# K% b
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" J7 C7 X6 ~9 x8 q8 ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' w% @3 `; d/ a+ G# [set i (i + 1)3 ~* v1 Y2 d& l+ K
]
" I7 p! a o2 H7 tlet k 0
0 j2 t3 J6 s$ p6 K8 q: }* }$ J. ]let new1 0
) |* @+ Q D- ]while [k < people]
: N8 u& m- M! P, r" G H[7 W9 D$ R% e. {. |
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)
; m% J, o: |8 `: u$ Kset k (k + 1)
$ B6 U7 H" [% t f9 E9 r1 X5 a( m]2 b1 P4 h6 o! W F. y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * h5 G- |- ^. Z8 ~ k
set global-reputation-list (replace-item j global-reputation-list new)
' p) r5 l# C& z* }% yset j (j + 1)
$ P9 K; z0 T8 F]
1 X5 X" F4 L5 I9 b" G7 u8 iend
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/ g; s( A: R' A5 i7 C# j
8 l# i6 q) A* P3 K; H" n9 n. O5 V C- q0 O, Z0 x* ?
to get-color: e3 ?8 G3 B9 @% z- n* r- g
; T& ]! z! u, W/ Z1 Rset color blue
0 m# K E7 j3 qend: Z* x9 B s) z8 A- T- }
. G4 w6 X5 g' ~5 F! l, ?9 xto poll-class
/ D0 ?5 O5 n5 v1 l; wend
o- l- t/ g! h# ]% ^! o' m0 {$ x/ D5 L" ]$ A. `+ ~( [: y* ?
to setup-plot1/ `2 h3 V( k: i; ~3 z m
, X. S7 ~+ d, G$ n x
set-current-plot "Trends-of-Local-reputation"
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% H# K- S+ X# {: B: ?: cset-plot-x-range 0 xmax
8 @* s9 t' r! S1 L6 z0 x. ]& }( N& ~! w$ S6 T8 P
set-plot-y-range 0.0 ymax: O- v& ], E/ e- v
end" I3 v/ a S1 R$ ?" X
$ u7 L8 c3 K6 `1 }( oto setup-plot2 z! Y' h$ H# o! `9 G! E
& U* I+ U2 R' G0 ]! X! f
set-current-plot "Trends-of-global-reputation"% G( [% `. N G+ X' B Y0 W) |! R
4 Z" k; d! i1 W# [, x( \0 c
set-plot-x-range 0 xmax! s8 v. A" o* x, f& W
) |* q+ o3 C- ^; sset-plot-y-range 0.0 ymax% r: S) m* F: G0 y6 _% S
end
# x% S0 o+ k- v6 P2 L3 Q
( g8 M% l" Q9 O' M# k: z+ cto setup-plot3
" o9 g* E7 |0 @ b" J9 N2 ^/ y( {" p4 e! C9 w' `! B! @/ e8 F
set-current-plot "Trends-of-credibility"' P! F* \ i5 R
) H" ^3 J, m1 s2 S1 r8 ~1 p7 }set-plot-x-range 0 xmax
' l6 _$ a! g$ Z7 Q3 T+ R7 ]
( H5 [' G7 z( A& `; |set-plot-y-range 0.0 ymax m O" v3 }* ^1 U9 _
end% V' N3 x$ e2 ^
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to do-plots! E( J$ b; Q9 L/ g. q" v* ?+ G0 G
set-current-plot "Trends-of-Local-reputation" g+ G" w% g& v5 y/ }+ A
set-current-plot-pen "Honest service"
& K) j# `1 e2 P; s. v3 E6 Aend! `2 g# W3 t. B( x7 U/ h
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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