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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$ Y7 B9 E9 B0 Z& @globals[
; p. g# R+ Y1 i, m( f8 h9 Nxmax
8 z+ t. h& ^6 x9 y( Z9 Symax
w8 H1 E5 k& y9 l' f/ }global-reputation-list
5 N8 U: k& i# K; N p' _6 o( G" e! b
2 R; I- d$ j) ~6 r1 S R! F+ r;;每一个turtle的全局声誉都存在此LIST中4 G f- u5 N' s9 @" {2 D! s
credibility-list
0 @) {! f0 f# a+ q* s. d6 |5 v- j;;每一个turtle的评价可信度
: K7 q6 v, o; ]/ a @honest-service6 \! q9 N/ H' g9 ]% M
unhonest-service
' o' i! W! ]$ f% Q6 `1 koscillation
, [( B" v& X( F: k9 H, i# ~$ Arand-dynamic1 k' ^; i( A- X) {
]9 a2 Y6 D; b8 c2 ?( Q
9 U9 p- N9 h* N0 ?turtles-own[8 p' Z/ S4 y+ O5 t4 ]0 }8 ]( K4 y' k
trade-record-all
( M1 H( A' t; _4 v;;a list of lists,由trade-record-one组成; A' k8 j9 g1 B1 ^' B/ c0 q2 p
trade-record-one
' `! V) g; }& p% m8 I0 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
8 Y' J8 I% C5 M+ O/ \! G
4 J/ o' E- |; h9 J;;[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]]
( p" P2 m/ b+ v+ S) c3 btrade-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]9 _2 x2 U' x7 X" F3 x7 V: X3 S* z
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
( O! }1 ]8 _' Vneighbor-total
3 w) X" }+ \6 F3 u;;记录该turtle的邻居节点的数目
0 F: c5 R% u/ z' [# W2 jtrade-time& c- ~8 _# N/ v5 K1 E, }
;;当前发生交易的turtle的交易时间
2 s, d& h: D# W: l8 o- mappraise-give* j4 e; G, P! J5 P, S0 C4 C# ?7 \
;;当前发生交易时给出的评价) Q( x/ T& T4 V0 }) a
appraise-receive
2 H2 h/ ?* A' A; k* Q;;当前发生交易时收到的评价1 W. o7 T+ ]4 z
appraise-time
n! Q+ t" Z; J3 G4 f;;当前发生交易时的评价时间
5 m. w' ~$ F, v0 i% Elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 c, r7 o: u# Y! i; Z. u6 strade-times-total8 I' P" f8 W7 _+ P& z" a5 \# C. T
;;与当前turtle的交易总次数
2 O. n7 [. j' Utrade-money-total
3 N/ g6 y/ F, y" n- |( {% y;;与当前turtle的交易总金额! a* O! J b2 D8 b: v7 U" O1 y
local-reputation J& v, ^# z5 { U- |. R+ M5 p
global-reputation
8 l6 [9 |6 {8 r) p- d# d2 A' acredibility9 D% K# G3 K; y- B, ?, K
;;评价可信度,每次交易后都需要更新4 `( b% j/ L% l; @
credibility-all
+ Q3 {( }8 H4 q. M! c R;;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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;;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0.57 A4 p4 w* j! @ ~- U9 R
credibility-one
* ]# r4 o/ s7 N3 T% o/ l;;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
: N7 t1 z4 x! }+ a! I8 ^1 zglobal-proportion" W3 ^4 f4 r7 L$ e
customer
& I6 E7 x1 c; z+ g* l2 W4 {customer-no. } l2 C% R9 s
trust-ok4 @. d" G) u$ u) m5 S5 T
trade-record-one-len;;trade-record-one的长度0 N) j. \- ?( q
]' W+ ~$ A! b! @) f# c5 L7 V4 @" y2 I3 _
' ~ O7 `6 k& z
;;setup procedure# p( c1 L6 g5 e3 h" T. v* W
* X1 j- R, l# N3 @5 k3 R0 y0 ~: {to setup7 X1 ~4 E) ]' D M* O
0 b8 w: A8 ~& Q- E* @8 J: Zca
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initialize-settings
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/ O3 u0 v! O+ G3 W5 Gcrt people [setup-turtles]; e: n# l. B! J5 O" L6 s; d0 P
C1 x) Y2 {) Z9 Y' P4 U- C9 Jreset-timer
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poll-class9 z+ X9 i! [4 Q7 D+ |8 f
P T5 p8 W& K" q( V' M
setup-plots
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) }9 O, |6 q; ?2 h2 ?do-plots
" \& G6 b3 Q; f) x. w3 `end
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) K, }$ [9 t9 X) Q# ?4 i4 z+ C% }to initialize-settings
, \; f; x! w* i/ R8 }
/ C. F& ]7 C: M. r6 k; d& Lset global-reputation-list []/ s$ b: W, }& v+ _" ?
& }, J2 K1 J' {: gset credibility-list n-values people [0.5]$ o) C, f# g1 g
% C& j0 d) K# ?+ y* {' T0 I) T+ D
set honest-service 0% G1 o" j& T$ k* G0 V- Q8 _' ?* e% j
2 N1 X5 w0 o% t" vset unhonest-service 0- K9 \; V6 @ s$ N5 N: O
0 L) V) ?- w8 C! B+ w& Iset oscillation 0
( Q5 I, X: Z3 B+ c+ E
- T0 J2 e: L8 N8 w1 aset rand-dynamic 0
2 J- u+ ]1 y5 {end
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# y% l$ N- o: m, j' y+ bto setup-turtles * |( d, p! |+ D, u
set shape "person"
3 q- B9 n% z$ nsetxy random-xcor random-ycor9 R' }" `7 m) Y" Q
set trade-record-one []/ T$ J$ P9 _3 C1 N2 e& [$ ~3 v
4 |( y o2 D! M' Z! @( K. Pset trade-record-all n-values people [(list (? + 1) 0 0)] 9 Z" ?8 i. m* S+ F @( ^
' i. U3 Q9 Q- d$ Y1 {4 u
set trade-record-current []
# M0 Y B: @" `8 Oset credibility-receive []( d. V' E2 V- h% r/ @
set local-reputation 0.58 C+ b8 u2 g$ A& h) g; W
set neighbor-total 0. f5 d, E" V5 j" i5 M9 V& j: i' K
set trade-times-total 0
# Z/ N+ B+ Z5 {set trade-money-total 00 Z$ R+ U1 }$ N' e
set customer nobody0 f6 Q; A4 {% ?4 k' ~5 w+ w7 N+ N
set credibility-all n-values people [creat-credibility]2 g! L( c7 X/ `
set credibility n-values people [-1]. C8 G9 A- u* r
get-color/ l" Q. ?: ^( Y ~2 [9 S
" @: x9 S+ Q X$ p/ v. ^9 ], o& G3 Cend
5 b, v! G4 C# [7 c
) E/ v& l6 l, w! C1 jto-report creat-credibility
: q+ U) `- B8 X$ X3 ]report n-values people [0.5]
2 G5 l! p4 z8 n. E5 I, iend6 y- n$ E" e5 e: G! Q
& P/ j: t- w- ~6 T# T& @' a* }to setup-plots
1 R% P9 Q. x. ^+ }% f
, [ M; d- `6 uset xmax 30
4 D$ ^1 E2 X7 \/ S6 l) o% `: a" n
set ymax 1.01 a% M' f& j4 m) l. z0 p
/ U) |4 ^) |" P! Z
clear-all-plots
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0 ]$ N& d ?9 w* _9 dsetup-plot1
% [* G; H) W! Q6 t9 X, | I- V* X6 v- p0 t3 o; D' h8 x
setup-plot2 W& U4 w* n5 @7 T
+ X6 r2 w5 N& y$ X! e" c. g+ ksetup-plot3 Q3 ]2 e' C8 v; f2 f. e U
end% Q4 K2 l/ ~" t2 r5 j6 @( o! K
& \) m' o) @7 L1 j" r" a9 D( ^;;run time procedures% `# F: H" q% I# V8 P0 s4 q# G
1 Q* r$ o9 z0 i$ ?* w- Sto go4 }+ U s1 J, M+ p
/ M0 T* W1 d# L# [$ W H6 W8 jask turtles [do-business]
0 a5 |" E. H6 z$ f6 d- g4 a" ]/ Z* c& eend
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to do-business E* W4 ]* C$ |& K$ U u
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6 u: ]5 V' ]. b! \7 [9 d
rt random 360
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fd 1" e6 i8 b8 ]4 G6 a
! y% [( D* h; [7 Uifelse(other turtles-here != nobody)[
2 G0 ?. L% c6 V* ]) _% ~
8 R# L! ~5 [. w9 nset customer one-of other turtles-here3 C5 O4 J9 `$ i t* ]8 y8 A. V
: m, M) i$ j" O' d0 w;; set [customer] of customer myself1 J2 C) H+ J" t+ y' D; r6 o9 @
" }! _( `* g, N) d0 L
set [trade-record-one] of self item (([who] of customer) - 1)
8 M: i8 c2 n7 ]2 L0 f( V5 r[trade-record-all]of self
( }& c( s/ Y/ T! ^) c" K;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 ]' e! f# u' C0 h2 a) i
. r0 c# K% ~$ N6 ~4 v% N A$ rset [trade-record-one] of customer item (([who] of self) - 1)" C6 v% O* r0 W) [- [& C
[trade-record-all]of customer a3 J5 t4 M) f+ R: A
7 `( k+ [6 G: s$ k5 F( \$ b! s; _set [trade-record-one-len] of self length [trade-record-one] of self
/ c, K) P) c1 j8 z
C5 d' d( w, k8 H: R6 m7 Yset trade-record-current( list (timer) (random money-upper-limit))) \5 [/ t" I- e9 n% D/ K0 t
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ask self [do-trust]9 m- c0 U( C( E
;;先求i对j的信任度
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if ([trust-ok] of self)
- e j/ T6 ~7 L% H. G;;根据i对j的信任度来决定是否与j进行交易[
, u2 c H- T. S) b! h$ _4 A* c, Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[* m) F* V8 _' |' f5 X' y/ G
. ]* k- t3 Y$ I- o0 n
do-trade
( s3 m m! r4 O ?9 e' @% m* L9 s
update-credibility-ijl6 d9 t! G4 }7 `1 h
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update-credibility-list3 U' Z t9 _- |$ k- P2 l, f. B
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5 x1 J0 `+ T% N' h s4 d7 d" Q9 a
update-global-reputation-list9 ?- \% k/ E* I& o2 x, m) @4 U
$ ` M- W" X, r2 cpoll-class
- q/ ^6 ?! A0 |3 ?$ ]% c. k5 e% C8 a. k- Y
get-color
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5 G# j: Y8 @( E- }7 p]]' j7 f b, b6 D6 c, U+ E
9 c4 }4 K7 `6 }1 O# o;;如果所得的信任度满足条件,则进行交易
3 {4 } H+ N# l7 K: X- `5 |! y: L
# U; Y/ A, u, w) U8 E0 w# D) L. F[
3 m( b& Q8 K) Q0 R P8 c7 j
* e$ N% ^( b! j" A) prt random 3602 k7 {$ X' B/ ?5 m9 j) l( _4 h. t
/ h. ]4 c; Q+ v c) e1 ]9 Ifd 1* @7 E! x4 e* p. F2 V! f
% x1 ~" @0 r6 I! p9 q) j! I
]; \1 m3 W- z' t
% Q5 b, q$ |' b3 L; b
end
: \+ K# K. z( {6 b' K& M! w1 M+ _9 X+ [7 ^) A1 O) c) _
to do-trust
$ \3 P' ?6 x+ lset trust-ok False
`4 V* q- k0 M3 z8 z% T# u+ u( V2 J7 J6 W" v
, E+ Q! f/ h' _$ S. Ylet max-trade-times 0$ u8 L+ e$ ^3 ^7 l7 T5 m
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 C* E% v6 X; [; U
let max-trade-money 0$ ~& k+ ^5 _0 u7 p9 C! h7 ?. ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 x: I H5 {5 H% A$ }let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# U# ^2 x& E7 X# l4 X8 V6 a) b% A) B" o
+ N5 P( U( l- Q9 |! i: U% Cget-global-proportion
. K. U! w* a( t; L2 h$ o9 l8 Llet trust-value
9 P a6 k! t/ t$ ~) X7 u2 j' k9 J" }5 blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
7 z2 B# a0 {5 M( Mif(trust-value > trade-trust-value) n2 m! m* q( T' P& h7 ^
[set trust-ok true]
- `6 i# u4 F; a3 }- ]) M3 Vend
' S& \! v7 Y) M
: R; {, P1 D4 jto get-global-proportion1 G, B- c C: s: S4 W$ R& @# o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). K; Q2 G5 R g
[set global-proportion 0]2 Z H' t$ h& M, \9 C9 ~
[let i 06 X, p' z. A; {+ R f2 U9 {. f, Z
let sum-money 0' ]# _8 V5 ^* U5 L$ \
while[ i < people]: O' I6 x2 O z* N4 K
[
. d" [6 U3 K0 [ n: E9 nif( length (item i
- c0 N, }) v8 H9 N' R, I[trade-record-all] of customer) > 3 ), K* J/ K7 b2 v. s0 p" j) s! V) D5 A
[5 ~3 x, N2 D% l4 G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)); F& y$ X; Q$ i: a
]
, |) A$ X3 T: `- I. K' Y! v]1 }$ e5 e8 p3 B8 B& R0 C; b1 {
let j 0
: T& N" D$ E3 Q& R: ]! w9 O/ Dlet note 0
" u2 X2 q8 a8 g7 N9 H& O, o% ]while[ j < people]5 x% w+ Y) x% r8 `( ^0 N3 S
[! ]2 b3 Z; w) Z, X
if( length (item i5 C7 F8 z! L- R
[trade-record-all] of customer) > 3 )8 l4 }# O! x+ s$ n8 c: Y0 W+ w
[
4 q! j5 U0 k! ^5 f( C# xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 K ^. j ~! U3 S# s, G& w" W. X6 N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 ?; t$ N* W7 C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 T# m( c) [: m. i; w2 m
]2 D) h& E7 S2 V: R: l
]
! z9 L9 Q1 Q4 F! r- @5 ]8 Q+ ]7 lset global-proportion note; W9 m* P7 O2 G0 }8 @/ `2 h# y
]
3 j& k2 o6 U. B y- \+ E; q5 X5 Iend
' [7 ]5 V* u, r8 R6 ]2 I: B# o! i& k& h" a$ ] @
to do-trade
+ c ^- ^/ f8 p. I;;这个过程实际上是给双方作出评价的过程9 v) T, N* u' f0 R) `; G" l+ Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' g" m# L" i) t4 x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 j! }5 N& y2 t0 v4 Q
set trade-record-current lput(timer) trade-record-current
' @: r2 {% d% w. j4 ~;;评价时间1 }2 E# ^. [+ q& w9 X1 g+ Q
ask myself [6 F" O: E) N& t8 W
update-local-reputation
' b, }" b" d+ F3 }5 b+ @& Aset trade-record-current lput([local-reputation] of myself) trade-record-current' O: M5 p4 {$ c/ m2 a! q9 m, U
]2 f) Z6 I4 | `1 g7 @3 _
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, i! P$ G7 I8 Q! B5 W6 w# f4 l
;;将此次交易的记录加入到trade-record-one中
+ z, b! g% n" s, }2 ^. rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
( F0 p# ^/ B! [: Elet note (item 2 trade-record-current )
% z1 W& C3 X9 F" zset trade-record-current- |$ \/ s; m: O; V; Q
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 R, ^* ~" D0 J bset trade-record-current
- M3 y6 J" W5 _(replace-item 3 trade-record-current note)7 l$ S5 p: Z5 j4 j5 y
! H# W- ]/ p! ~9 o( }. F
" r5 V7 ?, o+ C; G! Xask customer [( r2 R8 U; s5 ^( U1 U t: Q
update-local-reputation0 F. I& J/ m, W2 d- p1 Y
set trade-record-current2 U5 x- O) a" a$ ^+ w: o
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % \( F; P2 Z$ I7 b: s
]
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8 Q- x3 _3 Y6 j4 n; w8 E$ s4 q' Pset [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))
# b; y. h3 @7 Y6 |( Y( [# J. `;;将此次交易的记录加入到customer的trade-record-all中
8 A7 X1 a" M/ y" d2 `* qend
& |+ p2 z% K+ ~% X9 x) _6 F9 b7 y( u
to update-local-reputation, T/ `0 m. T1 X* Q2 w6 {
set [trade-record-one-len] of myself length [trade-record-one] of myself( ~! ^# h `& } q4 N9 ]# f
5 w* s4 E. U* s/ U% d6 f1 f& L/ m1 W t" B5 E4 e+ P+ U9 K
;;if [trade-record-one-len] of myself > 3
8 k. |4 C/ y, b4 z5 {7 N( aupdate-neighbor-total
& I7 u, c8 I' J1 u: Z ]) E. M;;更新邻居节点的数目,在此进行
' }2 U6 I2 q0 _1 A+ ilet i 3) c# J/ L; {" c5 y) T9 h `
let sum-time 0
* s3 h! h/ D; p7 L6 wwhile[i < [trade-record-one-len] of myself]3 c# E; n& S+ c. @: Z9 \$ a4 P
[
3 `1 `3 Z' f! W& [7 }* F- M6 Eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' C2 i% q# K4 d) T: q4 Sset i* [* N# i0 |) K, [# z% @
( i + 1)
. V/ L- T* p+ }0 U, e# {]- U' J+ Z; | E5 h
let j 3
Q. }' j& J* F: R O4 Dlet sum-money 0
7 W5 G8 U; N* Y: S* `while[j < [trade-record-one-len] of myself]0 l/ U* Z- X4 V# y
[
1 S5 H$ z0 D9 p' sset 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 R; W; C! |' _, E' r C. i
set j/ G* R' C4 c6 T
( j + 1)
* j- p7 s* L- b) s7 J]. c( e8 l/ e9 ]5 M: u
let k 3- q3 H: h- z C: l
let power 0
4 q6 @3 v5 z& X8 g8 n+ xlet local 09 \8 s4 O/ |1 O/ k J4 o* |
while [k <[trade-record-one-len] of myself]
% F( k& e' o5 p2 ~[
4 M- z: c# i! j6 e( uset 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)
# L1 e/ |5 z+ o8 _! l, Bset k (k + 1)
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set [local-reputation] of myself (local)
2 K' q a$ m& Z! _) Zend
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+ a& o [+ e( h3 kto update-neighbor-total
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* S- T* w5 @: h8 ~if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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2 ]5 d; U$ @, g- f; N3 S% i5 A
end
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to update-credibility-ijl
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;;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。
2 r) L4 o' d8 Q% Zlet l 0; i4 j- m& u5 y5 L
while[ l < people ]
2 ~; @2 U: V8 h+ R;;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
- `* u- p! p1 }# l. ~[
% R; @, r" X7 H! {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& O$ l% |/ w. T8 m, Wif (trade-record-one-j-l-len > 3)
! J0 [$ X) Y7 N3 d[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
9 [ k- R% d% f, M1 g" d' V4 Jlet i 3
) `! V% c, H) ?& I W2 e& e/ Alet sum-time 05 p/ D. C1 }3 p2 X9 e$ }' D9 `
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" r/ l1 T L" l9 J$ [ Wset i+ m$ |$ k1 i$ y' J: k# n
( i + 1)1 o% T$ @8 M, t' ~9 a, X/ R
]& y. a% H( E% j+ f4 b! _) C2 n+ b
let credibility-i-j-l 0$ I' k4 } i4 q O+ G3 _7 ~
;;i评价(j对jl的评价)
; O" V3 V4 b' J- p8 Blet j 3
5 A/ s; r$ r; X) i1 j- d: Jlet k 4
. R% S, ^. p9 q9 [ rwhile[j < trade-record-one-len]6 \0 L, D- b5 s! c, m% L
[# c9 n/ U7 l9 Z* ?0 D
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
5 {* J/ O' H' G W$ z, N2 a0 qset 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); j7 A% Z5 @; ^9 ^+ G. ^0 f, k" u
set j
& `) i' X4 L) }! L4 q/ ?) k- r: i( j + 1)
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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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))/ [' L8 R6 | q# y* C3 R; P
;;及时更新i对l的评价质量的评价/ a. }. x" x. p$ i2 @2 D8 B0 f
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ \$ L+ T% ^; ~7 `/ b
set l (l + 1)8 Q; i6 H" _; _0 r( r. Y
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end
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to update-credibility-list
9 C f! n& S, P4 f$ Slet i 0
9 i; R; \ H3 ~5 r$ awhile[i < people]9 @: G3 F6 L7 [* ^3 `) V
[) q W: x( y4 f3 G% z; h: i
let j 0$ H& c+ P4 e7 d N0 X1 D8 c
let note 0; f$ G% c% s( e0 F
let k 0
2 V' Y9 g3 \3 ~& q; X0 T4 j;;计作出过评价的邻居节点的数目
7 q7 a, z, F3 Z/ cwhile[j < people]
7 \& h7 U# P: i: d" G- ^& s6 |[9 g# m% s" X X* o: s
if (item j( [credibility] of turtle (i + 1)) != -1)& d. U, `4 g: j- r
;;判断是否给本turtle的评价质量做出过评价的节点$ N# L' {% \+ g% S" q6 _! [
[set note (note + item j ([credibility]of turtle (i + 1)))
2 Y" l* M; A, M0 H `/ \# [;;*(exp (-(people - 2)))/(people - 2))] [6 q; s' q' A1 z7 i6 z% b" Q. D
set k (k + 1)
: C+ \3 h0 a& s( n]
- n$ \( g5 }- w7 G! E8 fset j (j + 1)! A3 _( @) x- O8 A4 e
]
$ D' s. A& A5 G# [* X. ~1 wset note (note *(exp (- (1 / k)))/ k)
% Z; Z1 ~% [$ z2 z( F" S' C& aset credibility-list (replace-item i credibility-list note)+ A. n [5 G+ N/ a" U3 U. o$ e
set i (i + 1)0 i. G; `8 Y$ U' I1 |
]" q3 d( T& H7 H& O# ?1 {
end
$ o" m. X: R2 \: r8 {7 e: |. E% @+ i. {
to update-global-reputation-list
" k# ?% r. V( i2 |/ I5 H2 Flet j 0+ U8 c3 S1 Q$ K# R" x( r( T
while[j < people]
/ L- G- Z! I$ b' u$ n: W[" w8 ~ w$ O: i n1 i2 }9 D$ U
let new 0
) c @2 q6 R4 s& Q7 r;;暂存新的一个全局声誉( V# F5 r: V+ d. N! r3 x
let i 0
6 e( O9 Z; `0 Vlet sum-money 0
1 ?1 w/ |& H; J& \2 K' _* c* s6 _let credibility-money 0" @, K5 a3 k9 K3 z
while [i < people]
0 a5 W( L" Z- m0 x& v) |# G/ d[; _+ g9 ]6 d3 o; _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 f. p5 H4 l9 i1 w: |% N, T
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 _: p6 ?: f" x d4 @+ F6 i+ L
set i (i + 1)
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let k 0
! \ @: M1 D/ y& b8 \' M- qlet new1 0+ j0 o3 i& L$ X3 g" E
while [k < people]
0 i8 Q6 @8 A6 L0 n; n[; ]8 w$ D$ j4 Y: A
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)" u/ i/ x/ v Q6 Z: m, f% D
set k (k + 1)4 Z8 g `9 e- W! b
]
, E9 i, _& o: l0 E& |: vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! h7 c( V- |3 g( w0 m) s% i
set global-reputation-list (replace-item j global-reputation-list new)
* g" c2 o8 k; Q6 f, ? u( a; w Gset j (j + 1)8 P s! ^, T+ t8 x' @
]& U8 Z8 o7 {3 R0 ?; h
end
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to get-color2 c2 s# S* i: e, Q; u
7 B; L" }- y. X$ a' O( aset color blue* S- D" x1 T3 @4 A
end
" N+ n) |( |8 \+ }
- w/ u6 Z K. i0 f- Bto poll-class
: h4 o: H/ a2 I! a% Q8 `end
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to setup-plot14 [: i2 f- z1 p [+ H. Y: t1 Q& @& ?
/ M& h: Y! R- Z8 E3 Qset-current-plot "Trends-of-Local-reputation", ^* s; n. R( ]" y; q# d, c
$ [5 ?+ i$ f+ r0 Y/ z: b9 r) Qset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax0 h7 i: T' [; }7 u, i* E
end
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to setup-plot2. n, U1 c8 h# L- u7 K$ H" t
& w) f$ ~$ R6 Rset-current-plot "Trends-of-global-reputation"' ~. g0 G% m; s: s9 s- G4 G
6 A/ r4 z, Y# e1 h3 g: D- zset-plot-x-range 0 xmax0 l' Y0 I8 K# T8 D" r/ x4 N
b' M: V6 n' M3 c1 Bset-plot-y-range 0.0 ymax
+ |6 o9 n k# s* A. {. }9 Tend
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to setup-plot3
' `" {5 p% _. Y# y. `* C. a# B! L
# ?- S t6 [8 b8 [/ h# Iset-current-plot "Trends-of-credibility"/ I6 l( r+ L3 d3 q2 D6 C, j; O( ?
5 I" F$ _- k( d0 _
set-plot-x-range 0 xmax' H% D' G: m3 o8 R' @( L+ o5 D W
9 v) a9 O" V$ Z {4 D6 Tset-plot-y-range 0.0 ymax
& T7 f- a0 R) J% ~- f- M4 _' ^& Bend% [ e; w' J+ V" o4 j5 P0 X9 y; W4 w
% ^# Z G: B3 f" l2 k- j- n; j
to do-plots
& k+ c) d L- S8 @1 V8 gset-current-plot "Trends-of-Local-reputation") b8 m: y8 _# k; z. {! x5 K
set-current-plot-pen "Honest service"
3 K; ^) Y6 l6 J$ D6 |, G3 I& ^end
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* ?" [( C1 u y" G6 l[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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