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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
+ W- ?! M! t* `. v4 ^: Wglobals[
' d9 f2 j1 _( j+ Z T- _xmax P" W: V5 {# z* \9 t1 _( I
ymax
7 N* f" U6 J/ A3 a; ?global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中
: }7 w" I* S& k5 W# vcredibility-list
! b x0 ^1 k. ~;;每一个turtle的评价可信度- ~) H4 } z* _# a
honest-service* _6 C! a/ Q7 f7 {* l$ r
unhonest-service, g) X! _- D% c$ l- d; C9 q
oscillation' X7 I8 [: F7 g5 @2 ]0 i
rand-dynamic
% ~8 Y, p7 ?; Y0 E3 Z6 N! f7 {]% C: Y! d5 L, F6 p& E9 A) E: e4 m
% j n* ~5 \6 A# C( \8 gturtles-own[
& W" R4 J A2 M$ L6 \4 @% Y$ K: G( f+ Ltrade-record-all
8 n/ N' y( t8 j0 l;;a list of lists,由trade-record-one组成
3 J3 X, ^& r" J3 N4 jtrade-record-one
0 s9 e! i p! s! v4 s5 U' S5 T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) y6 v" A2 Q$ M0 _8 a. H
3 n2 P5 A' c+ z7 G;;[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]]
; N; b, |0 Z8 G. y4 m0 j( ]3 Etrade-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]
8 H" F5 a# P; |& T) p9 ocredibility-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' {8 x% O9 r! h$ @" }; x
neighbor-total
' J9 n8 n: B9 z/ i9 h;;记录该turtle的邻居节点的数目
# y0 G @8 U7 Z4 c6 Q) Etrade-time. S' i+ R$ l8 G6 y2 Y- h$ m
;;当前发生交易的turtle的交易时间8 f& R+ z% R/ t& `5 W! Z6 p0 v
appraise-give
3 w( P" Q( u9 l) W! o" A7 [;;当前发生交易时给出的评价9 X% v9 ?9 f% Z* k9 s
appraise-receive' C6 t* d4 L( B3 Z, Q( l
;;当前发生交易时收到的评价$ z0 R G$ g0 K1 C9 {# D( i
appraise-time2 N5 A5 @ [4 r! K4 g, f) X/ W
;;当前发生交易时的评价时间) C/ y* w+ v, K6 z* J
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 u- H' e$ F5 M4 n/ M- E
trade-times-total/ q" S/ L4 b [
;;与当前turtle的交易总次数
1 M6 g7 H4 q3 V+ |trade-money-total
4 g, g( Z! S8 G* _" i3 Z w5 g1 A;;与当前turtle的交易总金额' C$ o8 l; @" i% y- v; U/ [* ^( F
local-reputation, N. }4 D7 o l6 S [6 [% w
global-reputation* |9 v' [0 e" ^5 }3 k. K* l
credibility$ ^* Q) i4 o4 M* K8 W% W( n
;;评价可信度,每次交易后都需要更新
- P7 U X s4 T/ |) W# X8 Wcredibility-all
9 e) k" E# @! j7 ];;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
5 _0 b+ X5 d G" V9 p; t+ Q
( n- J7 r/ \% 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
! Z& @4 y7 M4 Ucredibility-one$ A2 ]3 g6 N9 M* ~7 Z
;;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
+ h% r( V, E* q, z" oglobal-proportion& y( F# I! B5 d1 ~ ^& B
customer
3 I; [9 U$ Z' h# w/ i: z" vcustomer-no
@/ F9 i- F8 g9 xtrust-ok
3 C2 o: N0 B% F7 x$ o6 D. I: S5 m$ s* Etrade-record-one-len;;trade-record-one的长度
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1 n, O0 B- ^6 U! S- y) A;;setup procedure1 \( Y R: z. a# L. A$ x) X
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to setup
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& y3 V! O0 j- v3 z( O+ vca
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0 I4 q! ~. V# f5 ]* ^ |initialize-settings
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; X1 B" W4 s" Rcrt people [setup-turtles]
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8 A3 r& t0 }) R0 d* x, v1 qreset-timer
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0 [ e# F: i! R# ~6 v9 N2 U( Rpoll-class
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" R8 T+ F6 b( j7 Q8 k$ o2 b, hsetup-plots
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do-plots
5 r F' E B& Dend
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3 B: E* J+ e5 b& p/ rto initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]$ _" c' T" a5 t# {1 C4 _9 S
4 T% e( u/ W. J- n3 O7 kset honest-service 0, _& @4 k" }7 H6 E# E: |- V' k* o5 b
5 ^7 X! h& T7 F% m
set unhonest-service 0
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1 v+ G: y( p2 [& \$ O' b, Q' Y" Mset oscillation 0 X b: ~ e5 I
! m) x2 p l& _+ kset rand-dynamic 0: d0 }: s) ~: v8 F3 v2 J
end
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6 a1 w6 L: s' oto setup-turtles # M% p6 o( C( o: D+ |
set shape "person"$ ~2 e+ k0 m2 F
setxy random-xcor random-ycor
8 G. i5 s7 t, v2 f" |5 Wset trade-record-one []5 A( F3 L. P9 L& v1 O
4 l9 a1 R+ R8 l! N/ h# Aset trade-record-all n-values people [(list (? + 1) 0 0)] ! q% @" x3 h/ D# ?! ]; w) T& c5 ?
2 \, B8 P s# h& y' ?3 Rset trade-record-current []- x: M5 M4 p% C2 _# B1 w
set credibility-receive []6 T6 j+ N M/ G0 W
set local-reputation 0.5( J: ]' b, {3 }( U/ u* M5 f
set neighbor-total 0! I4 u# d5 ?! L/ }1 r
set trade-times-total 0
) r7 l A1 t4 j& f3 g: y fset trade-money-total 0
+ L+ b8 }5 {$ C: D2 K: }set customer nobody0 X7 s2 L$ z% P7 _1 v
set credibility-all n-values people [creat-credibility]* O" @; A; @6 p0 T$ V- q$ j" |
set credibility n-values people [-1]7 W/ @2 Q l' h$ Q0 A
get-color
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w0 q' V# m. M6 P8 H" oend
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to-report creat-credibility
2 {. i9 U' }, p" treport n-values people [0.5]
p/ l3 K' f) G. r# S5 W+ a+ |, W% y0 Cend
% ]# B+ u q1 r* o! P% t. F% h+ M& O) A# U
to setup-plots
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3 K( Y* M9 c6 g: X! R% Tset xmax 30
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set ymax 1.0 Z- |) @+ n6 Q3 E* s9 L' d
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clear-all-plots$ T% C5 @7 _) E/ Q6 z2 r* G
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setup-plot15 w9 @ W7 t( r5 u1 r8 x9 R+ N
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setup-plot2$ H# m" D% F# w% z4 r7 q% I
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setup-plot30 u* Y' A5 y D' g
end% X2 D6 R2 {: c! z
9 [9 b" ?) \; [( G# J/ K
;;run time procedures* c4 b' G- L _9 W: _- v
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to go
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1 R0 l! r5 i" O8 M$ j* aask turtles [do-business]
, z6 }; C, U% S% G+ ~5 @end, Q/ z; g3 r% j) I$ b4 l4 H) u
+ ~2 G) |( N9 u" b
to do-business
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2 @, f+ c7 m' [# y4 n8 C% ?5 |# j+ [ z) E- }; F
rt random 360
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& y2 k4 `0 Q( Z6 \/ ]( z5 `fd 1
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0 f! h& Q0 q9 Z! G9 R. {ifelse(other turtles-here != nobody)[$ {- Z/ ~3 h3 A4 Z0 u
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set customer one-of other turtles-here, y5 _ J$ j3 l7 [. ^
% V( C. _2 n r1 B9 q& {2 S/ l;; set [customer] of customer myself
% x* A( w: G+ t8 m2 z$ c5 \! A8 d0 U" E) G6 |# o& z% z
set [trade-record-one] of self item (([who] of customer) - 1)
. X/ N5 a! f; q' A% g7 \[trade-record-all]of self
' ^; s# ^& d% j( c9 W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self g! D: z! L( }" \3 e
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set [trade-record-one] of customer item (([who] of self) - 1)
" t* G6 z8 L z4 G& F: w[trade-record-all]of customer2 [' B% @8 C8 k; _. s; l1 X
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set [trade-record-one-len] of self length [trade-record-one] of self
! i+ d3 W4 ~) U& H5 |7 L0 ]
5 V! q9 ]5 {5 x8 |4 Y6 eset trade-record-current( list (timer) (random money-upper-limit))
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% O, [, k X% q9 L$ wask self [do-trust]' t M6 G( r9 |3 `* `. F
;;先求i对j的信任度9 o3 ?2 Y: w% U9 Q1 x8 }( r8 S
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if ([trust-ok] of self)
' o6 c. ^0 e! F) U) t" R;;根据i对j的信任度来决定是否与j进行交易[) A% E# _, @% L) ]( K
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
s5 O1 x! {* v3 j) J) I8 h" h F. ^" a' ?
do-trade6 v% c: i9 I3 _; Z# Z/ A
5 P# [: c6 c2 l. R! Supdate-credibility-ijl: d; Z5 H$ h9 G4 M0 i4 K
+ X, z" E" W) b/ v; r' N2 q- z+ {0 i
update-credibility-list7 v1 p$ z+ b2 C% k" T, r
3 B1 Y/ K( y0 ?
# P$ r. k4 b# y0 Z/ h9 [+ @, gupdate-global-reputation-list
4 p) j# E% r9 W- m- @; v
6 D& z# |+ n! W* ]poll-class
# D) p: V/ ]9 C! C- {; O0 u: a) {/ E* V3 S+ u
get-color
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. u- q/ d, H( v]]
4 X: F9 u1 v2 ]! j
# B: U# ]8 x9 a6 @& E. Z$ W, p;;如果所得的信任度满足条件,则进行交易' M) R4 j& L! m& \2 h
* j4 h) U2 Z3 b, g+ v. N[
3 c! p$ L. A# q# D" x& W6 q7 l f. R/ D+ O, Q: ~9 D5 n
rt random 3608 u! x- y5 {! L# A3 }, R" s7 \$ m
0 C# B9 \, w* O, k4 w$ a$ ?
fd 1
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]0 q; }, t! x0 _* i4 D. l
9 }( |$ e2 Q, o' m, I
end5 \# I* H0 K+ ~) o( D
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to do-trust
4 V9 ]; c. K5 ]5 K; rset trust-ok False" p6 @' V/ Z" O0 y* R }
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[! p/ Z! P7 _" Alet max-trade-times 0
% {- @9 f4 Y" X K, Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 y. K6 k" u1 Mlet max-trade-money 0
1 C/ Y* W$ E: N! u5 O1 Z+ uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] M+ ?' j, c3 s! \
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, i6 `$ y# T% H- ?2 b5 S3 d- M- u( ~# Y# J
" K/ |# N/ Y, o; Hget-global-proportion
8 Y6 J( r7 q) C: W5 K% vlet trust-value# L% S" h; t/ S9 T# R3 c
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); U! W* K- @* }4 v' U8 }1 }) P& V
if(trust-value > trade-trust-value)! s. J2 B" [; \. f7 K) v0 P
[set trust-ok true]
; P) Y3 s" Y' D: n `) g) hend: G" F5 u @5 D6 K9 W
. u% K* |# I6 v3 A) J) lto get-global-proportion) K5 I6 [! H& u+ q& e# N) h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 r8 k( a% j! d
[set global-proportion 0]
& [# j2 z% T& u! Y" F& \. V[let i 0
+ A! j3 \& A" ? |5 J3 Q# N2 [let sum-money 0
) o, @5 h# {2 M& l% x( X2 Dwhile[ i < people]
( l: I, v& y$ e1 u4 ^" r[' {2 k* I, y& s, J" \8 A! X
if( length (item i
% d0 g1 o- X) p' y[trade-record-all] of customer) > 3 )
( ~! V+ Y2 ]+ _; F: m: q0 q[, N) [2 C9 a- {) ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]4 Y, W: l' A: I6 \% f
let j 0; V. G5 k' Q. F/ s9 Z8 E, X' T
let note 0
. X$ C _& K0 n6 o" h7 H+ i& Kwhile[ j < people]6 n2 T3 U' e* S& _# |1 B+ y: v
[
, {9 Z$ n+ o7 o+ ~" b/ L N& Dif( length (item i
: G+ t8 K( p( ^& `7 m( s) V$ ^# K[trade-record-all] of customer) > 3 )4 A! j# @" ^+ O1 ]3 d( W
[ l1 v( ^5 Y4 |7 P. V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% K, a$ Z% n% { w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* W; _; e$ b) I[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
^2 _+ U9 v2 D]
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set global-proportion note
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end( U; \7 [3 U% j' s$ J1 c9 }& e
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to do-trade5 b* y& I8 W6 K% b
;;这个过程实际上是给双方作出评价的过程 @" A0 H" E% S2 ^$ }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) @6 s2 Z' D q) n2 O4 w! p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' f: E. @+ r& }2 q
set trade-record-current lput(timer) trade-record-current+ Q5 F0 G; j- `$ d0 K
;;评价时间 p' W: j4 Y' B
ask myself [) T. N% O2 f, B- r2 u
update-local-reputation
}4 n7 P% c) R/ D7 Z8 T, [set trade-record-current lput([local-reputation] of myself) trade-record-current N8 E) a1 K' M# Z, g6 C
]
* L1 V0 j/ \0 e1 K, C! Rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) {$ y+ u7 h/ i% E c7 i;;将此次交易的记录加入到trade-record-one中
, q7 m! Z- D. p& U7 J# Oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 @, s+ Y+ Z6 w* y4 flet note (item 2 trade-record-current )
7 ?4 u$ o6 d% |$ u. e& qset trade-record-current+ K6 q0 a1 J. K% Q
(replace-item 2 trade-record-current (item 3 trade-record-current))" L7 n& Z) l5 k+ W
set trade-record-current9 f% w$ M! I7 A6 O
(replace-item 3 trade-record-current note)
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ask customer [2 A" H6 M& q) X/ R! g
update-local-reputation' y1 q, |; ?2 S) i& A8 O% w
set trade-record-current, R& B( }5 u) |% f# P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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" Z" H1 a: c4 lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 l7 o( }! K+ M B1 S* S0 a- j
8 \0 [$ b2 l; Q! ]* a; `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) g# R8 j8 b$ E
;;将此次交易的记录加入到customer的trade-record-all中; e, z$ K4 K3 W
end
6 _! _: d+ f5 {
8 L( Z! y# u6 O- Q/ sto update-local-reputation% a; p7 Q3 E8 r( ^" d- F. w% Z
set [trade-record-one-len] of myself length [trade-record-one] of myself5 I/ q3 c% I0 S; C% m, M
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: |8 a4 ]5 W! t: l, v! e' r
;;if [trade-record-one-len] of myself > 3
/ M9 V! W ^/ h, X' l6 Nupdate-neighbor-total
% F$ F' [0 m& {;;更新邻居节点的数目,在此进行. h; [% ~: Q$ ^
let i 3
% I1 A& i9 n; ?* o* Vlet sum-time 06 _ s% ]: Y! J' \% \
while[i < [trade-record-one-len] of myself]
9 C# w* P/ G3 M[
0 d7 F1 w3 K8 C/ Hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% h( S0 M4 |* i0 g9 N! g2 B
set i
8 G6 j- G, q0 H: _ K- R1 B( i + 1)
A% f. Y4 ^1 c( ~8 x8 A]
) N1 [! h2 W8 T, X8 ^let j 33 [+ f* W& Q: I' U o* \* C
let sum-money 09 u! i6 [; [5 j) R% x% _- q
while[j < [trade-record-one-len] of myself]0 y5 _. d8 F) v& a: |3 b2 w
[- j. W( m6 q& O: I" i: L' O( 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)
+ d( _( R' Y5 P. R2 ~( Oset j' C( R- s& P( L2 S ^/ F
( j + 1). S8 i* h8 k4 Z3 k3 J3 A
]! U+ Y& K$ u$ y$ b# H
let k 34 S; A+ X9 S: b6 X$ G0 O& @
let power 0
' M* M) h, i! u5 F" @: `* Zlet local 0
& ~2 ]/ _# d1 a" i# Q! n1 iwhile [k <[trade-record-one-len] of myself]& `) G; G+ |, G
[- e0 `8 e+ A4 O/ L& m
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)
2 X1 O1 O' | \5 D) v9 n9 ]set k (k + 1)
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set [local-reputation] of myself (local)
5 F7 v! V( l8 N& \/ Vend
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to update-neighbor-total$ h- g7 M Q: Q. r- T1 W
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 d! K) ^# r; p9 a( ~- Z9 k6 T
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- h i5 Y1 y8 H J; `% l7 vend; M/ t& n+ t0 j. y9 o l% d
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to update-credibility-ijl ' ? |/ H. l* Z" ^" N
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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。
1 v( W8 D& @3 k( Z) G/ m# G" o- llet l 0! u' D/ M4 b) d/ o
while[ l < people ]9 h- z3 Y0 Z3 x6 _
;;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
+ [! c+ |9 @+ y4 j! h L/ f[
9 ]+ Y' m; e/ _1 Xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* X9 Y' }) a* e: i- l3 C3 [. Sif (trade-record-one-j-l-len > 3)! @+ w j# S8 A9 k- a% F- 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-one
0 ~; [! a8 I6 w. b: p9 Zlet i 3
8 ^* R8 w- l$ A: w# U. slet sum-time 0* I1 H) S- |4 j! B
while[i < trade-record-one-len]; M. M3 u3 T& h
[
1 U1 I$ C) t. H) `6 g8 a3 c4 oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ I# _0 ]3 f; j7 j& B6 I+ W! V
set i
( [% F# w, U9 R" l6 P8 I( i + 1)
; |6 f9 @5 u9 v- P" i" `+ M] \, m/ N- c& ~: G' @. b' H2 a" o4 C0 ~
let credibility-i-j-l 0" x; N4 d8 Q( ^) \. I
;;i评价(j对jl的评价)8 }' d' a* @) G
let j 3" G. H4 @' x" a2 t5 s6 @
let k 40 H0 f, {0 r/ U; g6 w8 D Y
while[j < trade-record-one-len]
5 A2 g' i/ t+ L3 V& \5 |7 z[( z6 r& f& S" Q! x9 a2 W
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 A( E8 U+ c9 \* d V/ t9 B8 a! l
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)
2 M4 Y8 c- g$ U2 s% v# {set j1 a0 o3 Q' X2 R6 u2 W+ g) O
( j + 1)
: ~: X5 \+ [: v. j4 A# |' l]
8 Y9 I9 e U# iset [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 ))
L( I3 J% X5 ]6 s* `2 s5 I9 `% w$ p& _) n
" Q" L. j9 m6 X2 ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) Z/ o8 n; `/ S9 _% N
;;及时更新i对l的评价质量的评价5 p0 A; W" _3 N+ ]0 @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 L' a7 w5 ^& [, r
set l (l + 1)% n4 I; R5 r _
]
! b8 t$ O' t, E/ J; ?7 Z9 g- Nend$ ~7 p1 }& x) W0 ~$ `
+ t, S+ c4 S! kto update-credibility-list) d3 F B, _. c9 L7 J, f1 P5 |- t
let i 0. f+ R9 f1 y6 ]) y" [
while[i < people]! v* Q- c8 c2 z6 ~& ]- K( t! ]
[( T. p/ u, [% K- U
let j 0
3 ~' U; E6 d/ D' \* E( z/ Tlet note 08 F! n' Y2 a" E, w& V
let k 0% o) j& a$ u+ D, A
;;计作出过评价的邻居节点的数目
/ O+ L" I+ {" K8 O$ j) ~4 z9 Qwhile[j < people]
/ o m: p q! a[8 g) a2 }! K: A7 m0 Y+ a
if (item j( [credibility] of turtle (i + 1)) != -1)$ I( G) a- v" ?1 ]) ` B5 a
;;判断是否给本turtle的评价质量做出过评价的节点
2 d- J9 E u( j/ V: A4 A[set note (note + item j ([credibility]of turtle (i + 1)))* b, s+ o: g6 l/ b
;;*(exp (-(people - 2)))/(people - 2))]
% v" n: F# L, d. H5 {0 O6 z" vset k (k + 1)$ `2 \. i5 k* l) v- ` x
]
- M6 g5 @& g- x) Lset j (j + 1)
( h+ D# y5 E8 x1 b7 a]
8 E; L9 n/ |" V1 L! }set note (note *(exp (- (1 / k)))/ k)
/ q) G& B/ k/ z- C: }# Uset credibility-list (replace-item i credibility-list note)$ ?; ^" V; K5 R- `& u. |& L8 m6 j
set i (i + 1)" M2 Q' W/ [: f, v4 P% [
]
. B/ F% Y$ |' x+ y# Z4 T$ [+ }" f+ Xend$ v( s \- U# [
6 P6 y, m5 L+ G0 C; @3 I1 i) ?$ Mto update-global-reputation-list' F: H% A9 c+ W5 S
let j 0* ?: M2 V1 p1 l3 B, J$ E2 B+ ]
while[j < people]
# p4 @' q% V* Q* E[
6 H7 i( a' U ulet new 0
. @! k5 Q8 V# P. d;;暂存新的一个全局声誉
3 l) N2 J+ ~4 j( N7 V6 Vlet i 0) [0 L0 R* F+ J7 e
let sum-money 0# |/ P* p: e1 _+ l* ]0 v
let credibility-money 0
- g9 ]& M& C3 d6 t3 `+ Vwhile [i < people]" T2 U! T) J: M- d8 e. J8 e
[5 E4 S; ]- [) H# f
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ X. ^7 r7 I2 u! v
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& u+ b, k3 T2 \- k( A6 g. y
set i (i + 1): X2 [4 U- O4 ~4 E3 Q0 t
]7 a7 G+ D, `- z. X: Y
let k 0
1 Q7 P* p# ~+ Ilet new1 08 I0 f' i# p5 s- Q, g, X
while [k < people]" g: ?" b% f! h& K- n
[
* f% q5 A k/ C$ vset 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)
) ^, S. f2 N# o0 ^set k (k + 1)( M0 C+ x( Q) O* k; T
]
: r0 U a& m% C$ i: { ?set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) . n5 h5 {- N# W% \5 k
set global-reputation-list (replace-item j global-reputation-list new)9 v; {6 c7 V6 P9 g, \8 `
set j (j + 1)0 r8 n7 z- N& P
]
/ H$ E2 K7 O, m9 K* I' `- m1 p5 Tend
6 S8 y8 U8 z/ L. h3 W4 B6 x* n0 k+ B
1 v1 `4 x* u' A( u! ^
$ h# H4 o: m" x
; V( b" N4 ?: ?& Z' i0 \to get-color1 U) b% o4 |6 q% v+ T0 j: }
; x/ ~2 I8 V; ~, a5 e1 @ f: b
set color blue9 x) M: Z% ]6 l2 q s
end y4 `: `* R; d7 g: Z1 {+ ?, A
) M$ w+ S6 o1 z5 x; ?" Q$ }to poll-class
# I& n: D* F* s) C) p0 {end
( l* a! @) d5 }8 Q# n( Z6 l W1 v6 R+ n' X1 k; B: k5 |
to setup-plot18 Q' J6 U# ^$ |6 {1 n
6 ~7 J' a1 W- ^! A
set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax9 G ? B; C0 d$ ?7 Q# ?5 P- Q
! X( m, q) x1 n9 @4 i' h4 oset-plot-y-range 0.0 ymax/ |) B: ~1 p1 i" t% h/ v: a: [
end
4 B4 {, s9 Y' k$ E" V9 H8 x E1 N5 I+ G
to setup-plot24 k( ~1 f7 }1 D5 w: B. @5 |
+ r8 M, J' b) t: g. i, e7 bset-current-plot "Trends-of-global-reputation"
3 m. X+ P( l# _7 b) x4 C$ \$ h, C$ T: t, Q. J$ k
set-plot-x-range 0 xmax
+ [5 E. _/ U/ K s
& i2 ~0 S6 C, d9 [. F4 Kset-plot-y-range 0.0 ymax7 z& l- T$ F4 Y
end# x" E( | z3 |; \- n: }, _% t' q
" e1 E( |. C1 m5 m* dto setup-plot3
' w9 [% u3 E) R9 A( I D! z
+ ]5 Y" }% m2 \' F7 kset-current-plot "Trends-of-credibility"
+ S" C' e; J5 c) }' N9 n
1 A- p1 \" G0 X7 z! x& q$ H! nset-plot-x-range 0 xmax* `8 C# z( U3 y" u: o$ C
% F1 r0 j5 C8 j0 ~8 B/ }3 S3 p
set-plot-y-range 0.0 ymax2 d; i$ J# {8 H- ^
end
5 e! ]( h5 d0 ]" D# V- v
) Q2 `' {5 k4 V9 c, Eto do-plots6 K8 L( s/ L9 M
set-current-plot "Trends-of-Local-reputation"7 ?' p6 L: y( Q8 }
set-current-plot-pen "Honest service") f6 C( a; u3 u' ?8 {# H
end# x \. g( [+ i$ ~& O% o0 O
/ W& N3 U! M% ^. ]" [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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