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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" Q* j$ `% C" A7 y
globals[! K) C4 n" R6 g0 H* o. Q$ h8 M8 N
xmax2 B3 H* P" B0 i1 h7 F2 c' o' \
ymax
: M0 y, ]. c2 f$ x# l+ nglobal-reputation-list+ i: T1 W) p& y9 V% L
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;;每一个turtle的全局声誉都存在此LIST中
& Z; [, ?. }) V" Rcredibility-list
# F7 ^; G. M2 b3 d+ ?;;每一个turtle的评价可信度$ L) Y+ d8 e8 n
honest-service5 v/ l G( C u+ m0 G0 h0 d
unhonest-service$ z/ v% o: w+ r# U" f1 @
oscillation
- b# O: v7 h0 X1 urand-dynamic
' T5 i1 x: g4 V]
- k, k" j8 z* H5 q8 j: i1 o
6 F) p: w7 {- P" u* ~: w* Aturtles-own[
' K. V2 ?* W3 L' o% ltrade-record-all" W, |, f1 s% N7 z6 C
;;a list of lists,由trade-record-one组成: T# p6 I& g5 l
trade-record-one/ o3 i' h0 r0 V$ L2 _
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]. j. ]7 O+ h. y6 m0 J
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]) \% k! f1 p7 q: ?+ B% F( m
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
$ y7 u9 L6 [+ s# s' f1 {% Vneighbor-total
4 x3 a( s* M3 Y5 B/ b$ U;;记录该turtle的邻居节点的数目
& j4 @7 M' L% G+ }# k7 e8 d. w6 Ltrade-time5 I" r! b" O7 T8 ]3 X
;;当前发生交易的turtle的交易时间6 E _0 B+ W) ]* v
appraise-give
* j9 i! J% t9 Z7 ]. F( j" U;;当前发生交易时给出的评价
& A8 d0 _1 @1 s' ]% n* Uappraise-receive$ F7 S2 u% k* x; ~" K% _$ D- d
;;当前发生交易时收到的评价0 f5 h& D9 {( i+ f* i; o
appraise-time+ s" [! O8 h" J; g
;;当前发生交易时的评价时间
: M" h' M# M8 I. v# r. M, `local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 z) [" q+ H5 T* X" L$ R
trade-times-total
4 u! D; N" @5 J;;与当前turtle的交易总次数
' x% {+ g' z- P% Ktrade-money-total
Z$ k( m4 d% V5 Y2 i' O;;与当前turtle的交易总金额4 b/ B& g. z+ [7 b0 a0 {
local-reputation
+ u, u8 _* v0 }9 n( S, nglobal-reputation6 |# Z4 b1 D( H5 ~* G/ s
credibility
$ _6 J. Z0 U4 ^6 G;;评价可信度,每次交易后都需要更新+ A: Z3 q1 L9 V, ]0 K t* U. J0 ]4 u7 N
credibility-all2 K% o7 W$ |; ?( |- X% @# j
;;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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: B5 p0 d% @& C! C% U' m# \;;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0.56 }# p: d1 ?% ^
credibility-one
: x) h0 k1 k: p* N2 y0 W' G;;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 i5 W3 L7 \. I% `" `2 @global-proportion
. V3 \7 S& y; Ucustomer# }8 Y8 ]7 h! N$ k$ ~1 H
customer-no7 a6 i" E+ p" G2 M+ J" L* I6 F
trust-ok
5 @2 y; _4 z' S! V) D3 {trade-record-one-len;;trade-record-one的长度
: ?$ H, [( b# d" s& P* l]2 G) u7 ? d2 e) D+ y/ s
; }, t/ r- X7 ]. r+ ^
;;setup procedure
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5 w- `1 J) I8 pto setup+ ]. J4 y# B" l' L+ r: d' }# y* u
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initialize-settings& ~. m* W, K' _2 `; c9 y+ S
1 }( p0 E, P2 R7 m# Fcrt people [setup-turtles]
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/ n0 W8 ~9 D2 L! nreset-timer: ~; E* g( E5 @1 r
/ y9 G; I: {" z' b% I" S8 dpoll-class
2 Y9 S; H: [5 C: o9 u x4 p
; V. f# ], ?1 v/ ?' K+ g Xsetup-plots& i* u0 g/ H: ^
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do-plots) [( r* @' G5 G) f
end
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to initialize-settings$ e C7 Z. K! G/ {4 z
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set global-reputation-list []
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0 r s2 u8 ^) J l* j. g {; vset credibility-list n-values people [0.5]
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8 U% B, J* e% Dset honest-service 0
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! m6 ]7 a7 J1 R- r7 d- |set unhonest-service 0. I* W; \" p. G j" L
* h) Z/ A1 P) v1 X3 Oset oscillation 0
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6 z7 t" s3 _) D: W1 sset rand-dynamic 0+ e- A- c+ L( v; \
end M8 P6 `+ K3 M; [1 n9 l% U
3 i# H* l& L8 m; Tto setup-turtles ! o) \ k, T( s2 U
set shape "person"# r+ J/ R4 R: K6 |& k7 H- a, j
setxy random-xcor random-ycor$ b0 D f( Q0 {) Y2 m, F0 X6 o
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] / N% A3 Q l, ]- w: r
3 d( ?5 p! T \+ E
set trade-record-current []; B1 p& a2 z/ \3 Z6 [) |6 s3 C
set credibility-receive []% X* k1 v+ Q1 r' R3 }( W
set local-reputation 0.5: B; C" s; @6 I8 B9 `( E- m4 k' }
set neighbor-total 0
! _9 b/ a1 _+ q& ^set trade-times-total 0
" h: `1 a2 N6 P0 @! H8 |: sset trade-money-total 08 E A" g" D0 h( e8 ^$ F! K( P
set customer nobody
$ k% c$ v. r' r0 b3 [set credibility-all n-values people [creat-credibility]
3 x0 R! P( b% c4 @; r% ~* A& b& Sset credibility n-values people [-1]* ~# n8 W5 K8 }; s2 ?
get-color+ a8 c. d- j, c- }
5 d, _2 q+ ^, _, ]% p. C Pend; w3 C$ O" O: l/ \) b
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to-report creat-credibility; g# G/ ?& O/ C$ Q- E _- ^7 Q/ s
report n-values people [0.5]6 J0 ]. l. c% K# v
end
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& N# K9 K% s1 ?: P. Ito setup-plots5 o. D8 F. D* `3 k$ q
% {7 C6 Y2 j$ l- R( i. U6 Y
set xmax 30
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set ymax 1.0# h, j1 P( @$ {9 N6 o+ U1 A: e
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clear-all-plots
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setup-plot1
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setup-plot2
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setup-plot34 s) z" I0 n( }( r2 ^. K
end
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; c$ [3 W8 U' c;;run time procedures
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0 B* U; x; j/ Jto go
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' t3 }! V; Y- w6 I+ [" \5 kask turtles [do-business]
$ u. o V; @; B' mend
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to do-business
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( L) q6 j8 a' f5 N2 k
rt random 360; `# v. C' v/ z9 E9 {7 ^- V7 [
! O0 Z# D+ I% K" `& S% C! Sfd 1
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ifelse(other turtles-here != nobody)[
{( P8 |& m3 O5 `4 j& S; v7 k9 ?; r/ C
set customer one-of other turtles-here% r" M$ K5 [+ ]4 ~. k- d
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;; set [customer] of customer myself
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9 R& Z1 h: F/ m: z4 ]. J5 Fset [trade-record-one] of self item (([who] of customer) - 1)' R1 U* y1 {' Z5 O `7 d* o
[trade-record-all]of self
9 p5 a* a$ ?" n, a: h% p) p$ K5 ?;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' z! ?/ F# u* l9 I0 k9 W4 Y
+ z$ ~/ q: r/ ^( H6 d+ u
set [trade-record-one] of customer item (([who] of self) - 1)' b2 ]# p {* v. S7 z
[trade-record-all]of customer. h" [/ b/ Q/ [" A- {
* M' g& k" T3 j- B# Fset [trade-record-one-len] of self length [trade-record-one] of self; \1 x( p- I: ^7 m, |+ |
5 h2 k4 m" T/ }0 [) m
set trade-record-current( list (timer) (random money-upper-limit)); B8 }$ P+ a# J
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ask self [do-trust]* G. P, M0 \* n0 G) x
;;先求i对j的信任度- W# z6 e+ n q2 Q
; D2 k- E' x- Vif ([trust-ok] of self)0 H4 F/ l1 |5 D
;;根据i对j的信任度来决定是否与j进行交易[
5 [2 |+ H( m" ^0 u: Hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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do-trade
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update-credibility-ijl
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update-credibility-list
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. z$ b# w& S3 V: }% j" }
5 ]2 W: b8 U) G# C" v4 ~update-global-reputation-list6 y1 ]9 B3 X; E5 Z8 ?* ^
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poll-class7 o9 F: d0 w7 L5 d2 _. u/ r
' O1 ~* t4 y8 a3 s4 ]& `9 W
get-color
8 _' y D' [; L7 Q6 @
; d1 U5 g7 A' R9 x- Y- f]]5 P+ }9 s( B2 X& R3 q" \
. M/ z2 J2 b5 d9 u x# g2 z;;如果所得的信任度满足条件,则进行交易4 z) V' |, U1 i" g
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[
8 M. r* \. l6 l( T( _- D) T. n/ ?7 L o& ^5 R7 {( s) e
rt random 360
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. y5 a+ s: r$ n$ pfd 1
1 Y% |2 u7 m# }6 d" l; p3 A7 @- f. A
]0 p1 V, c$ k2 V8 ^% N$ o; l2 y! L
; [! Z; b" m: M! p# fend4 S- s" `5 r' G
4 @/ Z9 `8 j }; a( a3 i7 ~
to do-trust ! `" ^6 [/ `# @2 e( R+ l v
set trust-ok False
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8 d6 }8 f( S5 K+ }2 b5 G+ u( O. mlet max-trade-times 0
5 e% ?- P0 G& H4 oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 U) `9 r, c0 W" p$ L1 @$ [let max-trade-money 0! }4 Q9 X) A) K" q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 Y# O9 V2 M9 s) M# g' _; v+ Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- g/ T! l& f: r$ K4 ^7 ]$ L' r4 g/ U6 M" d/ [' a
7 M/ s2 V3 ]& G" R, A5 J( V
get-global-proportion
9 L7 G- C2 | Glet trust-value; I/ p& S" a b ~' b- g
local-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 _' Q$ v, j8 H; g) o) D: @7 Kif(trust-value > trade-trust-value)% H `4 n' t4 C8 D) \2 ]
[set trust-ok true]
+ X7 S) n$ ]( ]3 }6 N Cend
1 W) l0 y+ _$ E1 L6 M- V- W( W
8 D5 S0 X. C8 [ N6 A* wto get-global-proportion. T3 ?7 t" m7 t- Z0 P9 {6 F
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 h) w- s w+ ]! I5 L: s[set global-proportion 0]
( d! Y" ~8 g& z[let i 0
4 @- m, x" Z: Jlet sum-money 0( F' Q6 h' o; j2 R; \' p2 p( I$ ^1 c
while[ i < people]
1 @- j" \8 j# `3 o6 h+ a" t[
6 H( u8 B* ~' j5 N2 Bif( length (item i9 v& R1 e. G& d) S, J8 w4 ]
[trade-record-all] of customer) > 3 )
0 n4 n; X3 d F* k[
; M3 R0 Z0 c, J; N: I/ d4 N- r: oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. }! z: A, t) S% H( @9 G U]* ?: H% @ ]* W" p! T
]4 ?/ v J% N. F
let j 0! }5 F# s* a N
let note 0
" ~1 Y; q! b( o! Ywhile[ j < people]8 h& ?( q4 y5 O1 W' i* B! m% i9 b
[) D. H9 b* e5 ]3 \& I+ {. u
if( length (item i4 F+ O5 {# c I* t; ]+ B* W
[trade-record-all] of customer) > 3 ); w/ t6 Z+ i$ f1 G& m" }! v+ X
[
1 h; W8 F8 A3 v1 W J9 s% n) vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), f N5 e5 R* u% O
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 S: `1 V3 [/ W2 H5 Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! t( t* z& q0 r! O3 `5 T$ x
]
4 U4 t' A3 w% g]
- r3 `% u9 Z- g e) ~6 {6 a) oset global-proportion note$ R/ A$ D; E& o3 s! E( m }/ z* `) s( b
]2 w9 a7 p3 d+ D3 l( X) h
end
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to do-trade2 T- k9 `, s7 m0 S t8 b" B
;;这个过程实际上是给双方作出评价的过程
! a, b) p" t; A; V" a# gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 D, N; X: ?9 K. F8 ^# X. Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; `/ Z% H! V* L) e2 ?: S9 i
set trade-record-current lput(timer) trade-record-current
2 T/ J4 m/ @9 }* _;;评价时间7 M& e! d5 W) o. A& z
ask myself [4 f6 W# o; u6 o \$ z& P8 M% P$ B6 I6 \
update-local-reputation
v% j G0 X" g/ c ^set trade-record-current lput([local-reputation] of myself) trade-record-current A+ p7 P( L/ l
]. M8 `7 p7 v- r q& ?5 D
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself ^0 Q2 f. _" s w' d% y ]0 j
;;将此次交易的记录加入到trade-record-one中
& x% k' V7 u8 h/ Z+ L* h8 ?9 Gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 ]7 M! j1 @9 u( f2 d% @let note (item 2 trade-record-current )% O4 F% H' G& e0 h$ s
set trade-record-current1 y& Q2 u1 n9 W4 M- S. C
(replace-item 2 trade-record-current (item 3 trade-record-current))* D* _5 l' h# W) c& {
set trade-record-current H- n! e/ |" O
(replace-item 3 trade-record-current note)
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3 X8 J8 a3 q, Z9 M9 T. T" O2 ]! Y3 K0 H* |
ask customer [5 d% ^+ [; j0 v( H4 \' ?
update-local-reputation$ e3 K- R2 u5 o! C* T
set trade-record-current( a' i" }8 b) j* x2 v
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 q0 K1 v5 u6 n6 ~4 h2 \4 z
$ d. F% a3 c) }$ X2 U& @' @set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 n; P9 ^% r5 a4 C$ C5 n+ P;;将此次交易的记录加入到customer的trade-record-all中# W' X4 f- T, T. d: e
end
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to update-local-reputation
3 ~3 d/ j' X. }set [trade-record-one-len] of myself length [trade-record-one] of myself9 N6 j* ~# d9 X) T1 @
1 A7 N8 ?2 O* w U3 m# `3 l" q) Y3 S9 B( v0 e* t, _: L# ?% A
;;if [trade-record-one-len] of myself > 3
3 C( Q. Q6 h. @5 z: Gupdate-neighbor-total( Y; Y! F% W1 ^2 G
;;更新邻居节点的数目,在此进行: e; O. z: Q4 s2 R2 A2 D0 W
let i 3
! A: A2 {5 y6 D- o) C3 |( e+ }let sum-time 04 z& ^; t0 E) I5 `
while[i < [trade-record-one-len] of myself]
, d+ c/ y6 x6 j N. L* t; m+ ?[
/ T: h) u8 q8 y3 ^7 e6 {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
t% H/ V* u# ?9 d, Kset i
. n9 l! S2 q9 u2 S4 T2 a1 m8 j( i + 1)3 Q4 _5 @( h; e: y9 e7 m
]
5 X, e; u3 G! H; R- [let j 3
3 ]1 e6 S5 b& O( c1 ulet sum-money 08 @; u2 c4 {6 h, g2 w1 m
while[j < [trade-record-one-len] of myself]2 Z4 W8 N3 Q8 Z2 T/ E7 M/ z
[7 S' _( @, E4 }8 ]) Y) h
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)
. a3 y9 i, n2 x/ rset j
( m# v1 N* ]6 {( j + 1)5 p5 s) s4 ?1 R7 G7 ^/ O3 r. l
]; b( g0 T6 ~1 h* @. m4 h
let k 3
8 ?; q8 f3 l2 l" E; p7 m Rlet power 0: b0 c: h" N/ a5 s! q" P
let local 0/ J& \! A6 U& I, O& r+ q! h
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)
; C6 \+ ~" I" I. |2 Cset k (k + 1)( \5 `7 c- p* d3 ]; c) v
]
R, K0 ^+ r1 \set [local-reputation] of myself (local)7 Y- H/ J6 I \8 X: w; ~6 \/ ?
end
( m: q2 R- \& j2 m- q
' q4 Q [+ U* H. sto update-neighbor-total
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) P8 F$ A$ y6 I( |- k! N3 Iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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8 S& T7 r# g) N1 Wend
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to update-credibility-ijl ) X, s8 u2 o$ |/ H
7 I! D: y0 L, K;;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。/ O1 t6 N/ [% Z4 @
let l 0
, ]2 B4 e. M& z. h4 a& fwhile[ l < people ]
/ N# g) u7 K7 i* \) H;;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, n( x+ S0 U& g* H0 n$ S0 Y2 \$ e
[
$ b$ f' ]3 c: ? i4 s& Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# D% t: e3 s. `. M; c8 Kif (trade-record-one-j-l-len > 3)! b* V% v. K* {# W) K+ s" 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) N( ~/ E+ C! A4 |7 m- W- J7 R5 ^6 X
let i 3
( q; z: h0 [* R' Dlet sum-time 0
: a2 f& L7 Q' K, F# J: y; j! rwhile[i < trade-record-one-len]7 z+ O/ Y8 G E9 P" G- W) O0 M
[- [; A, N4 @! c, r3 L" H; j4 O* a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( W, i6 |" @- T
set i
. K8 T8 {4 ^$ m- Z0 ^5 J( i + 1)
/ ]# s4 y% ^3 H# u1 o]) U* \/ h' w8 @# }6 X' q' q
let credibility-i-j-l 0
: m# j0 H1 U. c8 l. q;;i评价(j对jl的评价)+ Q/ ^# H8 v0 z) p& X
let j 3
, `( E1 h5 [. \+ Vlet k 4
* ], o ?2 w6 b- @4 x. kwhile[j < trade-record-one-len]* k( E, C2 l+ o, S
[
" v: {2 r$ 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4 x# S. Z" w h! P0 t) N
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)& i7 s0 J6 _- Z* B# M
set j
% N/ ^, i6 H3 v' r+ |6 `- H3 c+ I( j + 1)
) o8 J- e) ]3 R0 z8 k]
$ q: m3 d" `7 u6 L! aset [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 )), D# _. b) f# n0 L/ u; l' G1 y1 B
* H5 e7 Y1 ]4 X4 ?" n a l" j$ K N( k; {6 f; Q1 C' `0 y
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% ?, U( p- u8 K6 Q/ x* U! H;;及时更新i对l的评价质量的评价& ^# M. [. i6 B
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- T( t% Z, R7 w( P: R) w/ F5 x
set l (l + 1)
w! |1 a @& Q7 f) V# B7 W! O]3 R% q! o$ H0 w/ a: S0 N
end
; E% ^) y/ [0 x: s( I; [: f
! S, w" r$ m. m; V8 o8 z4 Sto update-credibility-list
- n" ^! Q( o1 K5 I! l! @" Glet i 0
& j# Q5 H0 y' o5 i3 bwhile[i < people]
6 i& g$ z: E" X1 ^- b[$ c7 D- q* y0 @+ V; g( A
let j 0
9 r+ k' ]/ [( k9 e& {let note 0
2 h. E( W( S" f# m7 [2 \% Olet k 0
3 Q' V% W- @+ g3 u; Q;;计作出过评价的邻居节点的数目+ p3 j" |$ s( N! J+ t# t! o7 a
while[j < people]
2 B. p) ~( W/ W2 E+ F, }4 G1 M+ c[. }4 P9 O3 w" S
if (item j( [credibility] of turtle (i + 1)) != -1)
, J( ~4 Y2 c$ c% e! h& M6 j;;判断是否给本turtle的评价质量做出过评价的节点
* C+ ~- L$ ?* O" ?1 b[set note (note + item j ([credibility]of turtle (i + 1)))3 g5 Z) X( }8 J* n" `
;;*(exp (-(people - 2)))/(people - 2))]
+ D& p! {/ `# n. L8 n+ ~8 N7 hset k (k + 1)
5 E9 p, ?/ p; K4 U]1 n% M8 p2 n1 }6 b
set j (j + 1) Y1 V% C. A6 F' U# I G/ ?
]
) V, v2 A8 Z$ _" ^( D3 yset note (note *(exp (- (1 / k)))/ k)* W% {/ s, Q7 B
set credibility-list (replace-item i credibility-list note)* v* o) ]8 X6 J t4 j0 y- _7 v
set i (i + 1)3 k# L- F. Z/ W" L/ U4 u, ~
]2 }" w# {8 j6 M9 \+ G5 t
end
" U' r$ {4 K- u3 S, q+ i( a
6 O5 L7 o9 z0 {to update-global-reputation-list- ]) ?7 |: _' [& ~* q
let j 09 K3 B+ ~) v: O L) K" w
while[j < people]
- d+ E' S% x+ n0 v8 A# M[+ M* q7 h: ^" |- v& T
let new 0& x3 x3 w$ x/ F7 e" W+ f7 f$ C
;;暂存新的一个全局声誉5 F- v- I* i* s0 ?9 }
let i 0
' j. z7 `- E( N0 b6 [' n6 Ylet sum-money 05 _ ?; ]. u1 T
let credibility-money 0$ G& U5 S9 P, a% y7 l i
while [i < people]( t* [0 P% U5 k/ G4 u; P. h0 T
[3 L/ @2 T% m0 Y! k6 u4 |
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 l: H5 }0 z, B, I$ Nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- m3 G3 |( J" o8 W
set i (i + 1)
0 {9 z# u# e/ l6 C]; E4 F( c9 w2 ^3 {' E. B2 J% I
let k 0
4 B0 S; i" r1 m/ z( |let new1 0
; F. E, C1 m3 f( H4 Y& Lwhile [k < people]
% f4 E: _5 h/ V, P6 Z% q[
. e8 t2 B! u! g: Y# U# Nset 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)
( G3 |& _& ^& {1 W& P, jset k (k + 1)
1 H+ j5 z* v1 n5 H; w! E]
# E* b( \. L$ y) i5 d5 e6 ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ p. c$ b* z; v: d1 j" V" gset global-reputation-list (replace-item j global-reputation-list new)6 `/ {' L8 |0 b+ _ D+ J! r
set j (j + 1)* t1 E/ L% o9 o. i
]9 A8 ~0 \! I- K1 Y% R. p* ]7 H/ x
end' |" {" Q y7 F& D$ n3 X {
- o: S: Z0 K+ h) w' w) x
1 k. i' T" ^6 e% H, ^; P
- a- I) Z+ n# t6 I: B. Sto get-color; ?: V# d1 f/ @3 G& w! t( _9 i. b
& b; E0 @# `" T f" _5 W8 pset color blue
8 r) ]. ^5 V# [4 _end
$ [8 I% f' ]* Q1 Z8 H' Z- ?9 |' p2 I* d* [4 [0 Q7 a6 ~
to poll-class9 T: T# r6 J6 F7 U: b# l y- K b
end' n1 ?3 u1 z8 [ o& h
9 t* b' C, e1 |# E* v: cto setup-plot1
6 j: X8 p3 ^+ c2 N% c- |& T- {/ w5 C R: z2 o9 J$ g5 l, u
set-current-plot "Trends-of-Local-reputation"
4 O5 O* F& o$ l) @- i5 w# w, @2 l |9 w( d* W& {) z! ]
set-plot-x-range 0 xmax
( U, l6 r3 \& x6 ?- _+ j5 d) z$ l& f, A3 P& ^
set-plot-y-range 0.0 ymax
" l" w6 x# n5 _1 eend
: e" ?3 U0 K, L& i" V. k) N: b7 z2 ]9 z
to setup-plot2
! [* _4 b2 q8 J! D2 f% m
) O# Z. S* s( J1 K7 `& |! ?set-current-plot "Trends-of-global-reputation" ]/ W5 v! B- y& y4 k1 k: d; s
) r2 a& A/ V# g7 X3 [
set-plot-x-range 0 xmax
" y' ~- p* f) E; F4 R" C- G
" g8 q9 o1 y8 m* I1 d! x, nset-plot-y-range 0.0 ymax
6 Z2 _. n( h2 B# i0 N+ @* Xend3 x5 r A# ~8 C( `: R* t- l
1 C; ~+ R( A& u9 I% L5 l# b# mto setup-plot3) f; T; q: H+ _, f* Z
9 E p0 {5 v; Uset-current-plot "Trends-of-credibility") |$ Z# I& c- P5 `; ]4 L
; m! Y$ A1 j. Y) s: S% z
set-plot-x-range 0 xmax
" U1 o) Q6 ~2 H) ~7 B7 d) `$ x ^6 N1 S/ B; V
set-plot-y-range 0.0 ymax: ^' \# Q+ |' S G
end
# J6 H. ~( r8 C4 q: l
4 r K% K1 c+ L2 A" b# nto do-plots/ d" t- N, o* I0 ] A7 Q% ]: B
set-current-plot "Trends-of-Local-reputation"5 @4 `( K$ x+ n7 p! X
set-current-plot-pen "Honest service"
7 J4 | _3 I7 U# \end3 o4 w7 l7 x& _
& e. n7 c+ @# S3 |" n5 m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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