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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 `) q1 p9 Y# ?2 L& n* I5 Y
globals[% t6 l2 }. U) x6 @' A" U6 p: |# \0 P
xmax
" f+ V( J) P& J: L- ]ymax; R8 D: x! k. Z* y
global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中9 b, N1 d- B1 P
credibility-list+ n2 v% X) k9 [
;;每一个turtle的评价可信度
5 w2 d6 D( ?1 Ghonest-service8 j$ A9 d/ R2 w$ t' D
unhonest-service' F& A I+ R; b4 d Y9 ~
oscillation* Q- v" w/ P- R8 G8 f. t E& N* t2 O4 G
rand-dynamic
+ M$ Z5 l2 b" n]" ?( a$ I( Z% e6 ^1 |: ~. P+ M3 N
0 m3 K+ F% g2 L8 P# Cturtles-own[
0 r7 m; @. ]8 J$ Utrade-record-all) p3 J6 _7 y, p. w* L
;;a list of lists,由trade-record-one组成% J+ W; x8 Q9 z1 G' d
trade-record-one
# F3 E( s* |# K- 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
( z5 g* z m5 t6 b, p# Z5 I0 I8 b0 E. N: w
;;[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]]
* U" N6 x n/ B' ] ]% ]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]/ D7 Y# V. ]; _: [: b& m" N$ p
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/ g/ Z% ]- X9 T- z
neighbor-total
5 l. O3 q+ I( |' g;;记录该turtle的邻居节点的数目! C9 J2 h1 Q2 O) F7 T, `8 ~0 M( k
trade-time
0 Q( r, o! r. R+ B;;当前发生交易的turtle的交易时间" b+ z0 I2 ]8 a
appraise-give+ t' h# p; g9 u8 ]1 R
;;当前发生交易时给出的评价% W4 H2 R ~. l6 U6 [
appraise-receive7 a6 \4 w8 z7 K* z& Q
;;当前发生交易时收到的评价0 @7 _; l5 J4 p" R( p
appraise-time
8 j3 X* P6 `! H8 b! A# I1 u$ {;;当前发生交易时的评价时间
* p3 S/ |4 X3 N0 G0 Q6 t" @ ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* A {7 D' T2 v9 u) w: @# B6 Wtrade-times-total/ y- N% X9 q9 x) ~
;;与当前turtle的交易总次数$ ^" C8 o# ]+ l% e9 K; c" ~
trade-money-total7 H; B+ N8 k W' b2 ~ X5 @
;;与当前turtle的交易总金额% F# V6 W. c& f d N7 N
local-reputation, n, ]# l- v1 Z" ` I
global-reputation: V5 Y) Y! M) ]6 b$ S+ Y- A
credibility
8 D) L( a4 ^9 f3 \. \; Y;;评价可信度,每次交易后都需要更新
% ?2 \% T. J* Q8 M+ b0 R: Bcredibility-all
; C; c- w, x2 \1 m7 U;;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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: T A2 c* W. y% H0 a3 J- y: W* [0 ?( t;;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0.51 |5 U* B; a2 n0 {, ^2 e& |
credibility-one7 k% R# ?3 G2 l' B
;;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
4 N N/ {- G; e' G/ G( gglobal-proportion
7 s8 H6 g6 C; T! [+ Ecustomer
! ]7 R6 e2 f8 Y$ E! lcustomer-no
+ e- R3 h5 S9 `% ?- ctrust-ok
$ k4 z& E( ~% P5 \, @0 f* |7 [0 ytrade-record-one-len;;trade-record-one的长度
3 ^8 }; F. N3 s) ~; c4 N6 `]: B! b9 I; a4 u: K
6 R4 \, W: a; ?$ ~. V;;setup procedure% h F3 p. x& X o* D5 H
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to setup4 |8 B) n9 i6 I% q( R
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( q- h0 [- v# m+ y" i# {) ~: X* ginitialize-settings7 }! I, o# M& X( J; H
0 ]$ p% k7 L8 f8 k$ A4 r9 f U; I
crt people [setup-turtles]
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reset-timer
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: i1 b/ c p* K$ V u" \. lpoll-class
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setup-plots
+ [3 w: Z3 [3 V# L* h, H6 Q: v) V; e- ~, q8 t( H0 [
do-plots. V, |6 p1 k; u' V
end
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& \3 O+ P8 b" _( d6 f/ H8 ^* @to initialize-settings* P% @" ?- ?0 a
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set global-reputation-list []
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$ [* g0 k! z$ C, M1 G5 H) Nset credibility-list n-values people [0.5]! Z" T5 O9 I% B2 j
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set honest-service 0. {- b/ ~7 Q+ c& c; z2 M
' d, ]; l0 v9 ~5 c- Y+ kset unhonest-service 0/ _9 w8 R# B& I& k9 K+ u0 C
. D9 a) i# O1 A7 r: a( p' a) I" Tset oscillation 0
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; j( b/ C! y7 Gset rand-dynamic 0
6 Q& s5 }# V: C8 t4 ?end
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0 ] z8 t( b! R9 o. g2 F1 {/ `to setup-turtles
% x4 ]+ r1 D7 O7 m! Aset shape "person"4 w3 ~# ^( z/ e0 ^' [. U; b; Q, O
setxy random-xcor random-ycor
2 M8 m- p& I. @/ k* |- ~( o* z( x& \set trade-record-one []0 s+ g/ D" l4 ^+ j+ C9 A
" h: l; Z# t( V7 V- Kset trade-record-all n-values people [(list (? + 1) 0 0)]
7 u: L) B& b/ Y* }$ S' r' }* L2 ]* q2 q$ \$ Y, V
set trade-record-current []
9 I- c; K3 R6 q/ I3 S0 rset credibility-receive []
+ B& z* E( V2 C& Hset local-reputation 0.5
1 t0 [: [. ?7 w4 s# M, U+ T. R" w/ a/ Aset neighbor-total 0
4 Q+ v4 w3 a8 _set trade-times-total 0+ H, W0 p) d! E2 F4 ?
set trade-money-total 0
" N) f% ~0 \; w8 w6 P2 |& W Pset customer nobody6 b7 A0 _) r7 A
set credibility-all n-values people [creat-credibility]& G! [& ?" L7 U+ W3 ^
set credibility n-values people [-1]' r) }3 c5 s. ~% j7 i: `
get-color
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+ M7 @0 V! Y: mend
; `% H2 S6 u4 X; d8 I/ F
" n" B# i2 c( N1 B. m( c5 C! a' uto-report creat-credibility
) h9 k$ j/ u7 p$ R4 A, ureport n-values people [0.5]
' T( H$ v8 X8 `' e, hend& a) k% e- y/ }- K+ d& W
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to setup-plots
7 [8 w3 b, Z, V( W3 ?3 e- W
" P' O8 M4 M( E# M d8 Cset xmax 30" [ w( O0 j$ K4 k
7 x9 Q. N+ b& l7 Y0 w5 Q2 ?set ymax 1.0
% P8 |9 m( x2 t9 [+ e {: M1 B' e% u; ^; x2 y% ^! q
clear-all-plots
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P) ?, @2 i/ j. R" qsetup-plot16 ]6 K1 }3 a/ A8 p
5 w. ?6 x- ? e# ^8 h: c9 Qsetup-plot22 Y" J: P( S# g% j3 J3 O
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setup-plot3
6 C1 z; e, M( J' p$ F- qend
4 q" h+ _( I: _! Q8 h& O% a. m p( Q1 P/ x
;;run time procedures
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* n# b" m; C3 f: `to go
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1 F% X* X) H+ ?1 \5 z2 Aask turtles [do-business]
- L1 Z9 ?- p! b3 \' M; wend
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to do-business & u. y2 v. E h4 b' t6 e% y
# ^6 E: b$ Z5 s. c& c
! N- }, p, z6 R8 N/ ?rt random 360# {3 ^6 ^3 ?9 S9 `$ C) L
3 l* L r, @6 d* U
fd 1* w' |: ]0 I; K
# p8 |1 c5 e' o/ Y; M& C* Y8 w5 }ifelse(other turtles-here != nobody)[
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$ Z5 V; g) w4 h( K: p* fset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1): L: ~" _$ Q4 h- [5 f
[trade-record-all]of self
/ ~2 f5 ]8 I8 B8 M3 O! M;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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1 U4 R8 L6 h% w1 Cset [trade-record-one] of customer item (([who] of self) - 1)6 O0 N$ ^9 \. N# G
[trade-record-all]of customer) X1 X- D% x6 e- O G
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set [trade-record-one-len] of self length [trade-record-one] of self% P& g" L: L( K t" J2 ^
# U: q2 L& Q8 ^+ z
set trade-record-current( list (timer) (random money-upper-limit)). I$ C/ z! `: j1 L& u" }! x/ e$ g
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ask self [do-trust]2 _" z$ G0 z' T# }3 \
;;先求i对j的信任度 R8 }5 N6 x1 Q9 h
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if ([trust-ok] of self)
' c6 U/ i2 p; k: R0 k/ ?* I5 ~;;根据i对j的信任度来决定是否与j进行交易[6 H; P9 t, v! V2 R7 m2 H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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' q! y/ V$ f' D, w! r$ `5 [! wdo-trade9 ?; B" [: i9 W& a
( v1 {; m% m$ g7 t5 T: l6 V* ]2 m
update-credibility-ijl
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update-credibility-list
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8 {" i* ?- J9 E, n' r$ k0 Xupdate-global-reputation-list
$ W9 H0 b' c0 }0 R3 }; `" a1 A' J3 e8 n$ M6 }& d2 b$ z4 K
poll-class
" V5 X( y+ q2 t3 k6 `( y3 q2 P1 J, t1 b, ^3 ~" Q7 `% I, r) U8 p
get-color
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]]
- K4 r3 e m& N3 F! L5 l6 H. r) o% h/ l$ a$ i! o) U
;;如果所得的信任度满足条件,则进行交易5 T' y8 J: n0 T/ s6 b
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[
5 O) m) \ o+ d" x, x& k( N. @3 L
: s/ Z7 @% P, A7 x0 l5 ?! crt random 360
0 ?" A% X$ C" @- U6 H% ]) D. l4 b3 U* _# j
fd 1- @: A4 x h( |5 M
( I- i% w" `+ W* n, d]
) {" A6 u5 ^9 x2 P: _. g8 v2 I( q
. B+ P. N3 t8 e4 Gend
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to do-trust 0 \. E$ d: E1 T3 ]4 ~
set trust-ok False8 f" ~& M! i7 @
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let max-trade-times 0
$ J# @9 s7 W1 E$ S3 _ Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 E& D( l+ O+ L, S7 Qlet max-trade-money 0
; k- r: [, h- Aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 x i/ j6 b, W: S# Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 O$ k* [1 j5 o( T- _- V7 L! \
) F6 M" O+ K, v5 ~% F
- c' U. a; }* ~% A
get-global-proportion
+ d- L, G4 w; Vlet trust-value8 j( ]! J$ w4 C. k4 I
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); [/ Y+ _8 l) y6 k' I
if(trust-value > trade-trust-value)
8 ~1 l! l! p0 ?( @: \) A% w[set trust-ok true]+ N; w" F$ C: {
end
( \( N- L" w7 \9 e
3 n2 S& {5 H% G8 v( Q* o( E9 i) X' {to get-global-proportion4 S3 F' b( G$ \% U
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 j$ y, N5 ?& o, K0 o0 l
[set global-proportion 0]+ U+ P3 x* R% C$ P: F
[let i 0" _) p! }& }6 t, ]6 I/ X7 I
let sum-money 0, h$ L/ \3 ?# |$ v! E
while[ i < people]
$ `4 r+ x- B; S7 _ v5 A) J[! a' Z6 M, d0 w) s6 i7 A
if( length (item i9 \! `- a* z) [5 [$ h3 p5 b2 k6 V' I
[trade-record-all] of customer) > 3 )
4 M$ K# R" U# D" K. p[
4 u( N. y7 c) ?7 Xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# P+ e/ D0 ^1 T" y: q3 P+ v/ V! |]
- U7 v6 ?* ]) a* Z. ^]/ I# p" _! e; M% T8 N4 G9 j
let j 0# O4 O2 @' G5 H8 B- B2 H
let note 08 L) N& P( M( r
while[ j < people]% }8 o8 ]& I% P k% g. \+ n* C
[4 t) z, c/ ]9 H) S! a' d5 H
if( length (item i; O; y, G# j5 G$ ?5 H
[trade-record-all] of customer) > 3 )
/ h9 V2 [. D! u5 b( |0 B[! L' T- H' i4 d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& u6 r. E L' O( D3 @# i0 m
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' w% M& e4 ^/ W! o. L/ B+ s[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 q8 x$ O4 O" G$ d+ D3 u5 v; k
]
u+ i; c3 m" y# I. E]
! p' _. h2 m/ S* k+ J5 ~- x/ Dset global-proportion note# s: j5 T; F. t# W; v9 l7 B- f
], h, R1 Z7 S! i/ b! U" ~
end/ Q4 A4 n1 v9 M- a' h4 Y' ]4 T
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to do-trade
& G$ L0 q( L5 P) i! f3 M! ?;;这个过程实际上是给双方作出评价的过程
9 G) @0 ?/ q2 O. hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 x S( ^7 {" b( O- x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# k- U% [6 D1 N" \: w* g3 ?, K9 q
set trade-record-current lput(timer) trade-record-current" f2 t4 a5 ?7 k' t
;;评价时间
% i9 j" k6 I, d {$ Uask myself [
8 u: S w2 k3 k2 E! Zupdate-local-reputation% q' i0 d0 K+ Y T
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
( y5 `0 p: Q" n9 r9 s3 w3 };;将此次交易的记录加入到trade-record-one中. s4 N9 ^ v9 A3 x1 ^4 V7 G) e8 e3 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ U1 K- [( x- M- j+ t' x
let note (item 2 trade-record-current ): |- M. e8 r% r# ~7 `) o1 c7 v8 e0 b
set trade-record-current! l8 z7 H/ S7 i" R) Z, s' u
(replace-item 2 trade-record-current (item 3 trade-record-current))7 z) @5 E1 ?4 _$ J( S" `
set trade-record-current( c$ Y0 L# r. f( ~" j* x7 G
(replace-item 3 trade-record-current note)" Y. m$ i6 j0 s5 Y5 |
6 F! v$ D3 r) A1 i" t( n
! h- o5 G+ {% Z9 _$ xask customer [
" y. p+ k. X H6 V1 ^1 cupdate-local-reputation
H$ j. ]; z. o. Lset trade-record-current2 L; e/ E9 X B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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( |" w6 i5 z M' B
9 h6 N' l1 M: |
# X* S4 k1 H/ s: l" j9 e7 e1 Z; q5 j/ l; ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, ~6 E' C( J* A9 z) K6 r7 {; y4 o+ L
6 `$ K( o0 k; H6 ]8 ]- c7 ~0 Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( _+ l, J, d4 \: Q5 }
;;将此次交易的记录加入到customer的trade-record-all中
2 o* X& m# r# X; L" w* Y- rend
$ Y1 [9 u! z) X* u
" v4 B( o+ U& d+ z% Sto update-local-reputation
: j8 ]( m6 A* v& U, zset [trade-record-one-len] of myself length [trade-record-one] of myself: U+ a7 F7 B6 ?
- m$ E4 z1 K+ g) B* M& w; s+ o# \
;;if [trade-record-one-len] of myself > 3
% M$ e, i3 U' e0 r* ^8 mupdate-neighbor-total) [5 ^- W* l6 V; \9 f7 ?
;;更新邻居节点的数目,在此进行
5 i9 \( Q6 L5 @: s1 u5 C7 Slet i 3
+ i4 ~# R: X; W; `let sum-time 0
: a1 B9 L2 N: X# hwhile[i < [trade-record-one-len] of myself]
6 x$ e( i. R) C' l h[7 t" K( W* ?7 ^- G$ C6 N) U
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" Z( X$ Y$ R1 q+ Xset i9 u# G/ W& r3 ~+ X1 A4 r
( i + 1)
% l9 V2 l# f+ J, S' a]
, I6 w, C5 t/ {' _9 nlet j 3; o7 P, a$ b( v- F0 I
let sum-money 0. b k' _6 t8 i# }
while[j < [trade-record-one-len] of myself]
4 b$ b/ y$ Z3 E- _& v8 O[- j: g3 L- M, ~6 ]2 S% u
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)
, L. U4 N# N d1 t4 u4 eset j
* u9 v/ k, a3 b9 ]" y; H; y; D( j + 1)
7 N- I8 C3 s$ ^6 `" f]
7 ~7 _! [, N! P' d% ylet k 3
+ C3 a% N+ U3 g/ k3 }7 n2 e( ilet power 0. A8 N2 `0 d t0 E2 m' ^- m
let local 0
7 F" Y: J) y2 _* ^; Lwhile [k <[trade-record-one-len] of myself]( v0 U1 C6 @# [9 ~3 P4 X3 E) T. U- _
[
) K3 ^1 k0 E% p, u5 ]# K5 `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)
4 d% N* @8 {/ q4 O, ?set k (k + 1)
5 Z7 K% {/ H% C0 ~( V* I]0 O# e% x+ {! s, I4 a7 L+ E; `
set [local-reputation] of myself (local)
% C! w8 `/ Z Q/ Send- c) Q* `2 ]6 H1 s
, Q! W# e4 i2 o* C& `% _1 A0 W# cto update-neighbor-total# n! l# C, V2 ?# D) t# P: `
- j, c* K" E3 y7 m2 Sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
a* `# m! Y* |8 C
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end2 I* F5 Z. z) |& T& q5 U& _
( I6 A4 s X2 ^$ v3 |to update-credibility-ijl
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* N* d: q) M9 R;;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。. s; z6 B8 e% q
let l 08 A+ ?3 y, S/ \6 X
while[ l < people ]
& J+ k( H6 Q& f, y1 }+ s;;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)
7 I! w; D9 N4 R+ @( n/ O6 kif (trade-record-one-j-l-len > 3)1 f% J+ p4 f( c
[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-one0 C5 Q5 D8 A- h: O/ P6 J
let i 3
/ ~6 Y N, m: ?& }+ clet sum-time 0
) w( u4 U. N' @' dwhile[i < trade-record-one-len]6 Z% X Q3 ^( l8 W6 W
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 `% c3 g& c3 o
set i2 ]: `' {: T/ O2 H! x, _/ q
( i + 1)' T+ K3 t2 c, Z" d4 C* J
]$ q$ I& o! J) l+ X5 X/ t/ C0 k
let credibility-i-j-l 0) p3 {- Z" a6 p$ e* V
;;i评价(j对jl的评价)" U+ v4 ^6 J4 y/ O: o
let j 3
/ O M5 b3 X+ X# ]$ `let k 4
2 v- @3 r) y3 K- f! N0 nwhile[j < trade-record-one-len]: g6 p7 m# J8 C/ ]2 {/ \" k
[
- y+ L+ f7 D; d3 ]# y6 U* S |( \1 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$ E9 Y: |# L& `2 F7 n9 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)
! R, R) o; R/ b. G3 ?set j+ b. _& P" x9 d! m h
( j + 1)! q, [# W ]- E# Z, t& Y
]
: v4 N. ~1 o. Y# {3 F, |7 k% wset [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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" ]' A: m5 Z' B1 D: i! p) R+ Zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 |/ _/ }6 `4 i: }6 v: L;;及时更新i对l的评价质量的评价
, @- ~0 p# y2 a) vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' V6 a; F& @. q
set l (l + 1)2 Y. A' O# q- j) Y3 S* g% y( F
]/ X, j: _$ W& z/ M/ n
end8 Q, i8 r4 p3 o5 e$ \
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to update-credibility-list% \0 I- D1 v; A! E% \% O: m
let i 0
' \3 a* G5 y; I( P0 F7 kwhile[i < people]& N& x8 B6 B8 F# N' h# r. y
[
3 V5 U3 n7 P& m1 ]; n- t) R! a) n, zlet j 0
) @3 V7 e$ H" i. v5 h3 n. mlet note 0
( D( ?0 O" D# K; c' c) blet k 0
) L+ g/ }4 `' L9 X; S. q, z* t;;计作出过评价的邻居节点的数目
0 _( V! |' I2 x( o! C7 Y0 ]while[j < people]: C, |# Y! m+ ~) B$ A3 P
[( J# l! Q3 Z8 |$ z p9 b* G
if (item j( [credibility] of turtle (i + 1)) != -1)! f8 v. W2 I+ \& D$ ~
;;判断是否给本turtle的评价质量做出过评价的节点0 }. \, J) M1 E- w+ @
[set note (note + item j ([credibility]of turtle (i + 1)))
7 Z4 N! C g/ N0 a! h2 N- i7 S+ };;*(exp (-(people - 2)))/(people - 2))]4 O( b$ W1 V, h; B$ s7 d* N
set k (k + 1)
, H0 |3 o6 c0 d! R1 L) \9 [# k7 h]8 ?# k+ f& `) Q
set j (j + 1)
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! w- W | x9 K/ V4 t2 `4 `: xset note (note *(exp (- (1 / k)))/ k)' ^* W# i- n. U+ M. p3 B' S
set credibility-list (replace-item i credibility-list note)
! M! m9 d& x# Y5 m `set i (i + 1)
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end4 o' v9 H0 q0 m
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to update-global-reputation-list
3 Q3 L2 W7 y* N, ?8 R! n0 Vlet j 0
2 V: P7 ~5 j/ s5 B9 q+ mwhile[j < people]
3 p( B( G$ a; m E! \' ?4 `[
9 n- ~$ B. e0 Klet new 0
6 W( G! w p. {9 b6 [;;暂存新的一个全局声誉
6 f4 I. M8 k- {" [$ ~5 c/ a4 rlet i 0
# H/ D$ c3 n; |+ c" a" O5 f P \( {let sum-money 0
3 m3 ^) Z% z) Z8 B; W+ I, } }let credibility-money 0
0 j1 v$ D+ w! t& ]1 O" J& M& mwhile [i < people]; ^2 n; M8 u( d/ ?! ?
[
9 i/ H/ U1 Q; S" Pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) f6 Q, `( R" D+ Z/ pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 q9 D$ F; M; g" q2 K1 _
set i (i + 1)+ t: l+ d: o' C6 G- @- S
]2 }( K3 S/ F0 F/ U$ Q) `
let k 0
, A1 |6 {, U, M3 Glet new1 0
+ t+ }3 J3 s9 l' Y4 ^, h: ^' Bwhile [k < people]) o. n; m# u# Q
[
6 d3 h, y! r) v4 ^! pset 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)* S3 x8 F( K$ }
set k (k + 1)) a9 T" O' i6 W; _+ z
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 O# w6 X; W A% X8 N3 f
set global-reputation-list (replace-item j global-reputation-list new)* P5 g* B& I6 _* o8 |
set j (j + 1)2 K* j1 ?, @8 o% P* ~$ Q+ C
]
& T6 T- ~- f* C4 iend% Y; a6 Q# i# x
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3 t; R7 e( s' v' d7 Ito get-color2 o/ Q/ A6 h' I" p3 n; c: }
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set color blue
7 e' `, P6 w4 f' S; E9 mend
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to poll-class
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3 W% N+ u9 f- E8 y3 }. hto setup-plot1 q3 t4 J- s3 l3 S ~) r; Y, j
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set-current-plot "Trends-of-Local-reputation"' s" e$ o$ q _4 D: K
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set-plot-x-range 0 xmax
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, d2 ~1 X% `# Nset-plot-y-range 0.0 ymax
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8 b' M) z/ W: e1 g' u# _: Rto setup-plot2
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5 ^8 l/ b/ ?0 _8 t) L3 Y7 i) p4 qset-current-plot "Trends-of-global-reputation"6 {/ ~' N* [5 f- R5 w
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set-plot-x-range 0 xmax; l8 U; ^* @, {( S5 f9 L9 i6 C
( Z/ u; \. w' W+ i+ Y2 z
set-plot-y-range 0.0 ymax8 K7 U" O; U n7 s E v
end
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to setup-plot3
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, B5 J4 [8 Q" ~, ?2 m! i, Bset-current-plot "Trends-of-credibility"# g: Q& {/ S8 C9 n/ d
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set-plot-x-range 0 xmax J3 ]8 W. d! c7 ?- N
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set-plot-y-range 0.0 ymax3 ^+ `! I7 f7 @0 V# {' D7 x
end8 j0 G9 Q: C7 N
* Y. G3 E7 K& X! gto do-plots
/ G1 E; ?# i* wset-current-plot "Trends-of-Local-reputation"/ o5 i% J, h, \. U
set-current-plot-pen "Honest service"2 w& b- D3 [7 i! `( n6 x
end
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+ }# V! X* d# r) _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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