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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 ~) m7 _3 P5 Gglobals[+ J' u: z. C! k7 \9 T( D% z
xmax/ K0 S& ]9 w- ? i2 b' j+ T
ymax8 Z6 Y5 b, C- D a: A$ j" ~. a
global-reputation-list
: C. S4 j5 b+ b4 n
( O$ W# r1 @' Z5 Q8 V) m4 u$ m4 U+ X; c;;每一个turtle的全局声誉都存在此LIST中
" J9 A W% _" X1 w" c1 ycredibility-list
' t) y/ q2 r' X8 O;;每一个turtle的评价可信度3 y' ` @0 p( B) g6 t" o
honest-service
% `8 g9 x8 l# x, |5 Cunhonest-service$ S4 W8 u7 ?, F/ j
oscillation
2 X6 e* F2 o7 r0 a- crand-dynamic f5 G* {% S* h
]
6 p% \- u K/ k* ^; ~4 u. X) o" ^8 E6 t S% a$ ?+ A
turtles-own[
5 R' f! l! r8 dtrade-record-all
7 M' K4 F; p! h2 X4 H' }' m;;a list of lists,由trade-record-one组成
" F5 y$ {+ n! z/ ^) Y( o+ Q% }trade-record-one$ f6 _ L/ _5 Y8 ?; j$ N
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, `& X1 H4 b" M2 u& ~3 k
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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]]
, I: d0 `" _$ X$ e) i5 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]/ P3 O: }6 \& z6 ~( X0 `; n5 l3 G
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) h; `. D4 d: z U% B4 N4 V
neighbor-total, [9 T' V3 H) ?! ?$ {0 z; F2 T
;;记录该turtle的邻居节点的数目2 {. K) {5 m* Q; S- d6 l5 V& t
trade-time! w, B- `' V" V+ _3 i1 a* c) I
;;当前发生交易的turtle的交易时间
) J1 O+ @' @# i9 |0 l" e; ~! v* [appraise-give3 e6 I; Y$ o. d& o3 M4 W
;;当前发生交易时给出的评价
+ Z& _5 P- ~1 d+ E% `appraise-receive, M7 {8 M0 Y B; j" i) ^, F |, u; v* {
;;当前发生交易时收到的评价" U* D. K9 c& e) ?1 |' V& A
appraise-time v3 ^( X% O6 V2 Y
;;当前发生交易时的评价时间# }3 ?! S' ?% b+ `$ ]% _5 Y5 i1 z! ]9 s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ j1 [) R9 X& j* D: [9 Ztrade-times-total
7 E! ]& v6 y2 s& S+ t9 [;;与当前turtle的交易总次数
2 `+ L( n4 n# }- ]$ ^% y( [trade-money-total$ f& N) [& I! O/ Q" [4 @1 K% R# P& i
;;与当前turtle的交易总金额* @' B$ b- B' x$ p6 s/ D1 O
local-reputation9 `( }# k5 W! C$ w' E/ P- _
global-reputation
# x1 O3 P: M" b7 G: Bcredibility; A n& ]! }( I8 v! ?" n
;;评价可信度,每次交易后都需要更新
& V+ F w8 [9 ecredibility-all1 k: u6 `. V3 K Y/ J, ]) S
;;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& s% _# G4 e$ t* j2 M" ?" e1 |
+ z. L R' G; H O- R
;;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
8 f+ R. p% [ s4 r8 M, K" a- ocredibility-one
, g9 ~& c9 Q6 Q8 r$ P& g3 t;;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
- z! Q" W/ |* o6 b Nglobal-proportion
4 I* k" o Z8 b+ a1 Y+ vcustomer
4 l0 ?+ H; y4 l) P z& I! l9 Rcustomer-no
4 }3 |2 x1 g+ Q: W- Itrust-ok
/ Z+ c, M, l$ T1 A" Htrade-record-one-len;;trade-record-one的长度
( a* \" Q$ r; k]+ d- B `1 D) |3 j
' R9 ?6 q6 I% ]
;;setup procedure
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to setup6 T7 W+ N) K* L! b
4 s2 r8 j. T+ U8 U8 A+ Y1 L' j7 ?ca3 w) Y5 p n/ h! U3 N7 O2 B- f7 q& K
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initialize-settings
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) I; H2 ]: B- Acrt people [setup-turtles]
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reset-timer
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* ~' E! d- p. b5 a( [* C) g* Apoll-class$ {6 P. a1 K0 v) v: S* f
, f. R" U' X! ?" `1 ^; T ksetup-plots$ a4 L1 b. F+ p
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do-plots
6 A. j) y' k6 J4 e4 F/ Mend
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; {6 d" b2 T" W4 ato initialize-settings
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E' P" S0 Q: p yset global-reputation-list []6 V8 ?8 ]. A3 [9 n2 ]
: [6 Y+ o w4 }
set credibility-list n-values people [0.5]
. T( {' H; r3 u7 z2 v
5 M. S4 r3 Q. |5 b5 |6 e" Qset honest-service 0
+ |$ i7 K1 i1 N& a, ?1 ^' |5 v% y) O T1 g9 M N
set unhonest-service 0
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0 Y3 _4 b% P# y$ ^0 M; Xset oscillation 0
8 u M( Y' _+ g# L1 ?( ?0 G( \1 {+ _+ ?) I- V4 g/ I2 s8 p
set rand-dynamic 03 G, |6 h$ F6 M" F R$ N3 n/ ^
end
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. O1 I L8 J/ w5 z4 v/ ito setup-turtles
! {8 V3 @5 U' @set shape "person"5 D% t! _2 [: d6 F
setxy random-xcor random-ycor
& C# W M6 u3 mset trade-record-one []4 V$ q3 A2 ^2 S; ?) W
- b6 `1 I, ?2 ~0 w5 ], t7 U2 l" O
set trade-record-all n-values people [(list (? + 1) 0 0)]
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$ F7 i; j1 _1 y, K2 Rset trade-record-current []
5 r( H- M$ b. N1 J& M0 nset credibility-receive []
9 H" S+ l! o T3 u# s- Bset local-reputation 0.5) `6 m7 Z- Q# U. [9 O h* ^: Q
set neighbor-total 0+ R) S* c+ Q8 l. Q$ f" g5 N1 k
set trade-times-total 0
3 |, v+ l6 x/ j7 E3 B- R. iset trade-money-total 09 D( G: g8 \: I4 @' }8 F
set customer nobody
' B; k3 }# V+ ?; r+ Uset credibility-all n-values people [creat-credibility]- q% P; \6 ]6 g2 D; V9 }( Y
set credibility n-values people [-1]
; {6 N- R0 D+ M2 J) `0 u. S; j1 ~+ Gget-color) s3 m, o- Y, L. x
1 j' j% }7 o$ p! z! L& o2 k
end
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to-report creat-credibility
u8 a5 S& o2 \$ n5 P( areport n-values people [0.5]+ b( {9 M1 N; m4 ]$ w4 g
end
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to setup-plots5 X9 J% r% n& V% u2 h5 y
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set xmax 30
$ M9 S- }- J2 Q3 w$ y- J- ~& x
* O' ?, k) A' ]' |set ymax 1.0
' c+ [( m+ g" w p+ D; j" a h" C! F$ x+ B4 C' s+ H
clear-all-plots8 z; q8 a( ]' }+ f# M: ~) Z- L
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setup-plot19 F- X! G; K- S2 i
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setup-plot2
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K( @" Q% g! b5 B; R8 y/ K( R Asetup-plot3
* D- Q! L% A, H/ Y' \& oend c* Q; D5 r5 B
8 p4 A. w/ U6 x' [; S( u% G;;run time procedures
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to go/ @' a) R! W0 s: z2 E4 S+ k/ y9 V
5 @1 }* P# p% Z8 R( {( Nask turtles [do-business]. M0 p, E* ^3 Y0 [% z) Y3 E2 o
end/ Z; N, ^" } q' w# L ~
/ C; R5 F/ Z- e
to do-business
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N. { |2 s8 ~8 D |$ r+ Q% j
* X* i& l, {$ p9 j' O$ ^rt random 360
5 R* ~. K$ G- M
# e5 p& J+ [# |. i/ gfd 1
4 n9 O. i- i) I/ A2 P. ?! ]% _: W2 _# e4 V' n4 f x2 L& Q
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here) C' E, _" h n' S5 i
7 P& O' [" a8 d; n, p0 @' H
;; set [customer] of customer myself
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3 l5 D p# e7 K$ Aset [trade-record-one] of self item (([who] of customer) - 1)
?4 |, y8 [1 d' G3 r* s" i[trade-record-all]of self8 p1 Y m4 T" t J
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
/ b+ w4 @+ ^9 j h8 [- F[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self: M- B. ?) G9 M/ X" @% D/ _( x
0 j2 R, i0 k1 s# y$ A
set trade-record-current( list (timer) (random money-upper-limit))+ P; j' S! N3 z- \. ]
$ U3 s0 x! y% s; {$ R$ Jask self [do-trust]) d( T- s% w3 Q" T6 ~1 t5 |
;;先求i对j的信任度) }4 k/ H5 Z* q8 `! ]
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if ([trust-ok] of self). r* v; W' @* m) }+ }' M X/ U7 g
;;根据i对j的信任度来决定是否与j进行交易[, ?6 _) r+ p/ R# k9 Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
" w4 x& O) o! e! B1 c- O7 v! a. q% I* l6 r2 N1 L3 d! r
do-trade
4 a! M: w6 a/ _
( j# T% L2 y5 N [$ K Vupdate-credibility-ijl
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update-credibility-list
1 S& A" R3 Z% H; r8 [% F. _4 p2 W6 f$ V( @0 @: K2 z
7 z! j+ H. m! x$ R" _update-global-reputation-list2 [. U: y w: J* M: Z/ o7 n& h
- f4 @5 K2 C4 E8 }1 Y
poll-class
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& y" w( @0 x5 X1 S4 C2 ~get-color# f# m5 ]! h7 s4 Q) G- u8 m, r2 G
+ E" u" F' A. `( I% R9 e y; Q h
]]
( m4 C# c( n2 Y% Q' r" H% }6 `" [. k( T) f! e5 g% i% C
;;如果所得的信任度满足条件,则进行交易' ?- \3 O9 ]7 {; C
# ^7 ~( g& J) H
[
4 ~7 h8 D/ u$ r( k' }! N
8 z! ]9 p" E4 q' k0 y9 F6 y8 hrt random 360
% F5 a! Y$ S G Q
9 y) K) z$ `) p8 kfd 1& \. c6 [# f# `( X4 M+ d. V
( c5 W1 {. t T
]
3 l: k6 N/ t1 `- {! Q5 l4 Q) |- G6 g* p6 ]( T9 R' ^
end1 @. {! |' I- }+ w: W3 h" T
' d6 P9 l. D5 K$ H o9 r! n' Tto do-trust
6 A2 X+ g' t4 Y- Kset trust-ok False1 [$ @# P+ i/ ]
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( [0 z! u, q3 D4 c4 }5 O% |
let max-trade-times 0
- R9 o' F: V) U! @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 W: q2 ~0 ]& k5 x* `6 O5 X# A6 ]
let max-trade-money 0 \5 v: `$ i M
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 y& v) [: g$ _& h/ `4 z; ?" G
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% s& C. g& f8 c' D( I: Z; j! n: p) z
6 z, b6 W; |" Z; \1 g9 [8 _! p! M4 Q1 N0 D6 ?. a9 N; K
get-global-proportion
3 Y. m2 j+ s9 {( s9 _let trust-value& H+ J" K& X V' U. h
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)
3 @6 z# d% K/ oif(trust-value > trade-trust-value)
& i- O6 v; M( {6 L+ B[set trust-ok true]" b: b2 m( Z9 W3 _" e
end; Z; \. A/ X+ S3 ]" I
$ M" W0 ^4 L, e8 C- f t% B, _' @1 _to get-global-proportion
) p( i5 O6 q9 iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* J) Y' E7 T0 ^; \[set global-proportion 0]" ^/ u, d; J4 A: y" P5 c) e0 w
[let i 0
% o e+ q- j2 L4 J }let sum-money 0
: x4 r- E0 ]/ Awhile[ i < people]1 a9 A3 x2 ~6 [( R' N
[2 N+ F$ P4 u6 a
if( length (item i
: F2 Q1 `# B% b4 a[trade-record-all] of customer) > 3 )
" m. B$ L, X1 G* Y/ i% P[
6 u- `) N! V: z! j2 vset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) L2 j& U* [% o! t/ u
]3 F# P8 o" ], O# Z7 }2 p2 f
]& l4 g9 x- p8 [: W" I. C) ^
let j 0
" H1 I: E% F4 T: N. U. _% wlet note 0
. H1 ~4 _; R: F0 U( G A9 D }while[ j < people]
4 d% `0 Y) Q; m# A" |[ W5 ]' O+ D4 \5 e0 [
if( length (item i. v4 l. e9 Q: E5 p. o& S8 e1 P( R
[trade-record-all] of customer) > 3 )7 B; e6 }5 Z8 d Q+ l
[- y% L1 M* ^6 J s/ \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: g/ K/ S/ R* t4 b0 J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' [8 e5 {! ^' z. T5 `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ Y* d( N7 z6 y2 o' c& U]* ^ w! E% m o* s% ]& k
]
( _) z/ u- l L& S% y. J' sset global-proportion note
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end
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to do-trade
, s& t; G! n! i& h1 L;;这个过程实际上是给双方作出评价的过程# X! T7 g: l. V* _. P' I. v. I9 X) s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; o; H9 _0 V$ ?8 z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% s. e4 K/ y+ L a% Yset trade-record-current lput(timer) trade-record-current3 Q U) M& }6 X* J; L0 t3 p
;;评价时间
: C; C8 x8 u# d; Pask myself [
* `7 Q; K0 ^" Pupdate-local-reputation2 W z/ N) U& s) [1 W9 n
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. T5 {7 }. T( t" A
;;将此次交易的记录加入到trade-record-one中
9 X$ J! i/ a; f* Z/ w* k9 ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ A% w; F3 z. y! k4 l6 T$ v* r
let note (item 2 trade-record-current )4 g! S" L( Q( x g
set trade-record-current
1 a) g7 V) v$ Y5 {7 `9 ?(replace-item 2 trade-record-current (item 3 trade-record-current))
" V* W: {, b5 z5 n0 R( t6 C4 \set trade-record-current) a+ J9 u( t4 Q3 h; B4 |% o
(replace-item 3 trade-record-current note)9 N" Z. x5 U& D
0 D3 P, U: V- n- c7 t. ?% _% ?+ R+ a9 j& P/ t* |" C
ask customer [
) w8 d/ A$ I: r" o, P n' dupdate-local-reputation- D4 c$ |( e" j7 o% Y2 {
set trade-record-current; B5 N8 G- l% M d, k4 u% Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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; r8 D9 W7 d/ n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& h W% X& H3 U+ u
2 _" {0 S8 k6 {, ], v h
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. I$ i; i9 C$ u" H3 l) W2 ];;将此次交易的记录加入到customer的trade-record-all中5 _; Q$ C; W( @$ ~4 I
end
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to update-local-reputation* h/ W$ n5 Y% n1 ^4 @/ s" V
set [trade-record-one-len] of myself length [trade-record-one] of myself
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z: v" ?, o+ G( h" F. q: P) a;;if [trade-record-one-len] of myself > 3 7 _$ f# ~ F6 [1 c
update-neighbor-total
* I9 M ^$ C( F5 C6 };;更新邻居节点的数目,在此进行, }! M$ f/ ^6 R% I6 r
let i 3
- m: i' b2 P7 W6 _5 glet sum-time 0' D/ Z- d5 d1 q* ?9 N. Z
while[i < [trade-record-one-len] of myself]
& w* m3 u7 L0 Q# b[
. ]; `. A: c+ L- Kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ N# l+ g% e6 c/ V1 [
set i% A9 [( a$ j% S1 k
( i + 1)
& c W* }+ h& Q8 ~ m]
8 g! b* i$ w1 g! e0 flet j 35 G2 z$ A7 D; H$ {* b
let sum-money 0
# b. T+ K2 D1 {4 j Nwhile[j < [trade-record-one-len] of myself]
' M, q. M) f/ Y" P% y( U6 [. @[
" @7 ]" b5 |+ S4 c+ r* yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ W) w2 Y) k% w# h, F9 D4 N
set j
4 B6 v6 Z6 @- ?/ N( j + 1)' P, K. Y3 f Q( p
]
+ J B, P! [/ z# `let k 3
4 y5 ^/ l0 d$ F: K1 X- R elet power 0. l" T9 v% _9 \8 Q& _% f M* {
let local 0
: E* ^8 r3 ?' @+ `while [k <[trade-record-one-len] of myself]$ {* v3 D7 B' s$ |( Z
[8 ]1 A/ a. m( d2 E
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) ! O0 b: b; S: w; l, p+ p0 u, m
set k (k + 1)# b1 `) J0 Y' f: s! ^; z3 ~: L, E: ^
]
% Z$ j8 v( |* C; t. e% I( Dset [local-reputation] of myself (local) b/ b$ t: z" G* P
end
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* m+ H8 {$ G% D r( g/ \to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ t1 d$ O7 H: L8 Z/ _* Hend
+ e8 e, [- v' ?: ?& i, q- }1 S, c |; C9 g2 B2 ?5 F
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。, Y) t9 k O; A( b8 @
let l 0, L+ [. d" p' _- z0 R, F: l
while[ l < people ]2 G- N. P' r. w Y; n& `: Y
;;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
& \# b! A9 E& D( s) ~$ u& f[
; k) o7 G! ]7 H9 o) J2 t2 s9 s0 Rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)- u B h! U D q
if (trade-record-one-j-l-len > 3). S ~/ Y" `" d5 T
[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* O- d2 V V% F" C( F7 k- M; B8 z2 Vlet i 3" _% \; d& F' S3 v
let sum-time 0
% e4 W8 N6 @! I1 z# q4 n/ D2 Owhile[i < trade-record-one-len]
8 L+ w6 x* o% K# L- c+ {[
" q7 i, L o, l0 Z- fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ z% Q6 A' l# ]* Xset i0 A% R' a. w% a4 r
( i + 1)$ d3 h! p9 J7 B8 e4 v# T5 }3 D
]
d2 W& I8 m7 T; vlet credibility-i-j-l 0
6 `1 @2 ~7 V6 x# H! _" T$ O;;i评价(j对jl的评价)# J* y a( k3 M% t6 r
let j 3
7 |: s E0 H% blet k 4
8 h* H x: k; ]9 R0 ewhile[j < trade-record-one-len]. V h0 }4 }; }7 {! ^
[' a4 g% q/ S6 V% }* |5 d q( V. q
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# N0 Z2 `6 o" T5 O4 j) 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 Z; v$ Q' M! u7 ?, [
set j
# l4 U- M& o+ p# U; e( j + 1)
; t f0 t9 _% m- V- S) W]
- g: K1 k5 ]! C1 |5 A2 u/ ?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 ))$ k3 _# O7 ~# `3 F- d8 x
5 O' M1 T! A& G
$ ]4 O* M: b' ]1 D; U! _
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 n) h- @- Y3 N3 g+ R4 t;;及时更新i对l的评价质量的评价
7 c* C0 E2 ^. L% G$ u. t4 D& e9 D6 iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 K* L8 y2 W5 e% ~! ?- k+ V( L
set l (l + 1)6 v" ?4 E( n9 }0 r6 Q8 J
]6 V$ l- F- {. @# m7 {* U' e4 \
end& L" @& j0 H" R# K$ G- x- \$ y
9 N1 M- Q% }1 o2 ]" R3 nto update-credibility-list
7 c! @9 P g7 h" q B' k3 Clet i 01 { b3 }* \% G/ s9 I9 J
while[i < people]9 @% d8 l1 A+ ~" l$ ]9 q- P
[4 B* N& Z8 r+ I# ^ A$ Y% ~1 [
let j 0
" G+ x4 ?$ N& R! G( blet note 08 f' j" @5 w5 G/ s# c. V
let k 0
2 V: m0 _7 k$ p( m;;计作出过评价的邻居节点的数目! K N; b u6 b. n! Q
while[j < people]2 h0 a/ [1 L! E
[2 e( g& ?/ s4 {
if (item j( [credibility] of turtle (i + 1)) != -1)# N0 H6 h$ n! z+ T M) C' P2 Q
;;判断是否给本turtle的评价质量做出过评价的节点+ z# Q( Z5 _ c" S: f5 p- k
[set note (note + item j ([credibility]of turtle (i + 1)))9 l# x1 H& J7 ^6 h
;;*(exp (-(people - 2)))/(people - 2))]
3 k& ]6 n- z7 k% Sset k (k + 1)
& B, i5 O& N2 J; _8 W0 g] ?; p* s: ^( i2 b* b1 c
set j (j + 1)
7 f+ O* a8 Z( R! v7 N]
0 ~& W5 g& \! tset note (note *(exp (- (1 / k)))/ k)2 P. ^) D! Y4 `4 Q2 K+ j! K
set credibility-list (replace-item i credibility-list note)
- C6 X0 ]% f7 N* Yset i (i + 1)
6 O7 [& y: E) W+ W7 {2 i]
) V1 @: Y* e3 P! t$ X/ U2 c) Oend0 a `$ O% d, E+ J* ?0 A! ^3 ?
1 L" Z6 W' D0 m. H r$ D K6 tto update-global-reputation-list/ Y- C# h! }! c( T3 v T: c
let j 0. p7 a1 G* v. J# _
while[j < people]' x, W; [2 m' u1 C m: b J
[$ \6 m+ u! Z) i* n
let new 0
* j& U! a% Y1 J;;暂存新的一个全局声誉
2 h& E/ K5 Z( `" S2 n: olet i 0
+ N& l" |# U7 v4 ^let sum-money 0
/ f7 l( l8 L" E. Vlet credibility-money 0
, |3 T- E9 j. `while [i < people]
/ k, w& Q& O& K, L! n, v[
, O' ]/ l( X. L$ }: z: e; T" I" B! Gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 @. U3 v2 x2 O- Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 A9 {4 p. |; `/ m" u% ~" F- Bset i (i + 1)
+ p: X1 w3 s* V0 Z% F7 W]
`2 t% X- a! ?. \9 E' ulet k 01 ?# E0 h" p4 f0 H9 v/ P
let new1 0
' G9 Z2 R( [! k8 K# g$ ]- pwhile [k < people]
( m% ]0 K- d5 h[
) J" n, D9 z# \/ D/ D& Xset 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)" {! C4 \2 L* B' P
set k (k + 1)
# H8 B1 z! H( {6 m& J8 z]3 y+ i9 o6 Q7 H, l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" e; ?7 V, y, D5 [8 Rset global-reputation-list (replace-item j global-reputation-list new)
/ E( d& z& e5 e" m' B/ K) ~# Bset j (j + 1)4 P; o M) d+ f( K
]
7 t$ _1 T% j9 `8 T) \end
4 m' b+ n, F, U* G# L( L i
2 |- Y0 F: g+ Y3 D5 k1 e0 V' j4 V4 i0 j
0 n) T) n6 r1 d V+ lto get-color
7 o: Z* V, L5 c- [( ^" ]+ v" }/ q. o' x
set color blue
; F6 N- y- k$ Y) z4 m4 e& ^end" ]+ H5 @% O/ x1 h
* L/ ?% Y( ], Z$ y8 Ato poll-class
; A3 [ e7 I& K5 ]% vend
6 ~. j* j+ L0 [* A! b) Q9 L8 H: ~( w' S6 D) N$ q" Y3 W7 ^
to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
2 U2 o9 d7 H2 t$ G$ S$ `! R# _: i$ E' r3 h- u
set-plot-x-range 0 xmax# q* U* f6 w7 A
% e# p Y7 n6 B; E5 x- ^# p( Aset-plot-y-range 0.0 ymax
3 ?1 o& U8 X) M* @end; ]9 T5 n3 l) Z& g6 l4 @( a
' b( m/ T1 A6 A3 W8 o# h* ~5 n* Dto setup-plot2
7 _7 |5 q" Y! F% \ _. l: i- V/ I& y2 x7 V4 d7 c
set-current-plot "Trends-of-global-reputation"0 j0 R" P) A9 ^% a2 p$ ?
9 D5 u% \- b* ^% Oset-plot-x-range 0 xmax
* C" S$ z; y q0 z& _' l8 S2 z/ C& z" s. ^
set-plot-y-range 0.0 ymax$ l9 s, }$ l4 `0 F- P, k4 U1 O) m
end
4 k& z) w. i7 z7 k6 ]% v2 C% i& U# k! `7 t$ t
to setup-plot3
' |% N0 ]. E3 w! N0 M( ^6 l1 S- z
2 t i; }; i3 N' eset-current-plot "Trends-of-credibility"9 E* l4 `" I. e' m! f$ m4 X
' b! ]7 j+ u! N6 v) L$ }# |/ p
set-plot-x-range 0 xmax4 u6 d N; n# D* Y q
4 s* ^ L/ ^/ _) d: o8 H4 ~8 j
set-plot-y-range 0.0 ymax
2 E7 B+ t4 N% C" n, \2 v2 y( Gend5 F9 q) C( r3 M& v7 e. Y5 p
! w1 ]' u7 x3 R9 P- f
to do-plots2 j6 O9 G4 ` s# x( S% j
set-current-plot "Trends-of-Local-reputation"2 t/ r4 ]+ [ r! N
set-current-plot-pen "Honest service"( h1 P4 p9 b) G0 f$ ^
end
' {: ^% E* D% P2 l5 }: `
- F. f0 I+ t( W7 D( C7 w! R[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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