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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
+ S( Z) y" C/ [ k$ o7 [* ^globals[5 [) W9 R+ X3 F# {
xmax
+ O% H V! E f7 rymax, ]$ s- i0 B) B9 [
global-reputation-list; A# L, J1 Y. `3 y$ u/ y5 l
! J! r- C: V5 V& {;;每一个turtle的全局声誉都存在此LIST中0 r, I, w. k& u# }
credibility-list
, y0 V2 D7 Z+ c+ `1 a/ z;;每一个turtle的评价可信度
' j1 u4 K6 L% u! K( R; Mhonest-service
9 V6 A4 _. {7 punhonest-service: l7 \/ E0 x+ J$ `, h/ M2 o/ {
oscillation
; k4 P: U s3 L, c" zrand-dynamic/ c0 [3 v# Q" W. T2 \2 U+ d
]2 _1 Y# ?0 _' V. L3 J* Y
6 L2 v/ |" L! J& h0 ~turtles-own[
3 e) p/ M) W( n& mtrade-record-all+ a6 b+ D0 E' j8 ]) Q4 R
;;a list of lists,由trade-record-one组成
! T) C; g, I9 Ttrade-record-one6 ?/ J( G) Y, p/ S, J
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 C @" g9 I- G! i
4 O- R* M# y( m' f& [# d6 D. c; P;;[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]]
2 F! p3 x; ^7 G Xtrade-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]
, {6 |! G1 H% @ A0 kcredibility-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
% _$ Q. P' e7 v. A/ D* {/ jneighbor-total
& R; }! W2 Z$ k' Y3 }. Y;;记录该turtle的邻居节点的数目# m( L0 W" E& G0 N/ B1 q
trade-time
3 @9 S v8 k+ j( k' @/ l' s3 y;;当前发生交易的turtle的交易时间
9 V/ E/ D" L' O- eappraise-give, L! N+ p9 P6 y9 ^
;;当前发生交易时给出的评价
" l: _1 L$ I4 r' Z6 D' Sappraise-receive% R- T. K: w6 M$ j+ n9 r
;;当前发生交易时收到的评价% l7 D" c+ @% H7 A: a
appraise-time7 P) F6 _. L, S
;;当前发生交易时的评价时间 Q4 x1 u) @5 J
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; K+ }9 }- q* ltrade-times-total, I o" z) o; a" |; g! ^- m
;;与当前turtle的交易总次数* Q# Y4 ]6 v, D6 D$ z% q! L/ S5 I7 l
trade-money-total' V& Y# m( e. j) l0 b. v [' f
;;与当前turtle的交易总金额# a: E% S" B! s9 D2 T
local-reputation
3 ]3 ~+ Z$ d5 T* Cglobal-reputation
6 c9 P, l6 S Ocredibility
/ S9 \+ z. n9 ~7 h& U* B;;评价可信度,每次交易后都需要更新
9 S2 h5 q, N! z/ G7 j& b+ Q, ecredibility-all2 r, h/ D# H' J8 v+ 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5 ~' T! k4 C: }2 d# N
' C, V r7 f$ \5 `: u; 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0.51 d' M5 R# I* R
credibility-one
+ z: d& d/ A- Y$ a* v7 A W;;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
8 K6 g2 z. A2 K0 }2 D: hglobal-proportion
* {( z( @# O2 |- |/ f+ Dcustomer# _# f5 L% N% n2 m) X
customer-no
2 u4 G! d7 b: strust-ok# W2 n! p" Y- w2 l
trade-record-one-len;;trade-record-one的长度' c6 }/ ^2 H- q( q) O2 j
]/ ^' ?2 \, S/ [- H/ I& L8 D
2 `* |- L$ V, X& @: F3 J& ~
;;setup procedure# s- d D3 J* O5 e
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to setup9 X" U# _+ k: C, r
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initialize-settings" v5 T( I% H& d/ ]/ { J5 z8 L+ c
. Y! I9 ]& l5 f5 K0 ]crt people [setup-turtles]
% [+ E3 I' o* m8 ]2 O: W4 b2 [& v) m6 C8 E4 i
reset-timer/ z3 |8 {! k8 d+ f3 E5 x
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poll-class1 o+ a! I2 l! ~: c
# d# I$ {' @$ s
setup-plots, c& l% y+ _ F) F
; i: X3 E0 Y) q# B- ~
do-plots3 g, Z8 }' {; r: ^. U9 L
end% K/ E3 }* I1 W7 X3 u5 d
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to initialize-settings& `3 u9 E( w& S1 [3 y; J) e' V* I( w
5 \' d# Q- o( n- b- c( D2 r: G1 kset global-reputation-list []
: f$ {" ^- x9 |; U
2 T5 }# ^: V& J( z: z0 kset credibility-list n-values people [0.5]: X" l, j- x- @" ^2 \
9 m1 r+ x) J5 V0 n
set honest-service 03 v2 H& K/ G1 `1 o2 ?4 t
. t/ t6 `9 e2 Y( `# ]% ] C# Eset unhonest-service 0- ~) S( ]0 y9 I9 X+ X: |- g
$ J2 V: @- V! a+ z& a( l- yset oscillation 0
+ ~- o# j+ z+ D7 W, z* L5 `, d7 }: G3 ^4 h$ H
set rand-dynamic 0
0 v7 ^' w4 G- E/ C) Q( y9 Yend
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to setup-turtles 3 @9 F; Q( V8 X5 {+ F
set shape "person"
8 \' j. q( a- h1 |- msetxy random-xcor random-ycor
! r Q3 D" D* z# t9 ?set trade-record-one []
8 E0 }- [) }) k: P5 p$ F& N# m9 P+ r
set trade-record-all n-values people [(list (? + 1) 0 0)]
+ ]: b! v; t8 m5 U; q; q- n ~" M$ z6 p' G: P) O6 Z3 |0 f
set trade-record-current []
6 b+ W7 C, T9 `4 |set credibility-receive []/ p6 ^& [5 J. y t2 _
set local-reputation 0.5
6 a% g( E. z3 a* P2 N- W5 kset neighbor-total 09 p4 }, \& |' B
set trade-times-total 0
$ _, Q, z5 T) g' U/ y% ?$ Kset trade-money-total 0
" I5 D% g% p3 F0 U8 |% N% rset customer nobody3 i/ ^) ?% y; s a
set credibility-all n-values people [creat-credibility]9 ~* h; [4 s( E# w
set credibility n-values people [-1]8 i6 s3 u: S) O
get-color$ X" z, {. C ^# N5 N' i" C" C
2 y6 f+ _; T# s9 _$ w6 fend$ q8 r0 @8 Q( U8 \
7 R; b& {& t: K$ R1 l& A2 b% dto-report creat-credibility
+ S( s# I+ y% P9 p7 U! a! ?report n-values people [0.5]! X8 V, x. W# H$ z4 G* Y! m9 h* q
end3 |0 {4 L$ E- R2 m/ J8 h" i( X
/ f9 V# a) o% X! Cto setup-plots
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set xmax 30
+ k, T0 U ?9 q: t/ Q' a9 n, W3 U" I$ T" D
set ymax 1.0$ ]; @' f5 C6 n# C* T
: \; O/ Y( {0 C! D5 Q9 Z1 I1 hclear-all-plots" M4 g2 H7 S; ~/ Y4 |$ |
5 S6 X, `% J+ N: F" T- msetup-plot1
6 G2 {8 w5 I0 a) Z* x4 T: x: G" e4 t9 }, S$ j
setup-plot2
# Q X2 _5 ^, d3 k; u+ u
& }; R4 S8 x2 w2 Asetup-plot3- Q: S- C8 K" l5 U
end
/ H6 S) L$ p5 \
, Q) ^* _- m( z" S$ T! k;;run time procedures
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to go
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ask turtles [do-business]
( a7 I1 h7 p1 F3 u+ e& Uend
B: T. u9 {1 O/ F* I; W
* {* h8 }9 N- j* [' m' Zto do-business $ r& z" M. g6 @6 j3 [. S
n. w: v' e4 a) F0 ]
7 r7 Q, L8 w; Trt random 360
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fd 1
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1 o; H$ }# x/ R6 `) e) B; L5 a& aifelse(other turtles-here != nobody)[1 {% P6 P' v- |( o# p& p. S! e" g
& F6 c w6 E* n) A9 |* p
set customer one-of other turtles-here- G) k0 f n1 z7 J8 \
% j( I0 H1 C8 {+ c
;; set [customer] of customer myself' F! _8 m$ \! F8 _
# G {( t) A5 A6 P1 r# r4 r; Wset [trade-record-one] of self item (([who] of customer) - 1): R- ^, Q" k. x+ M9 K+ [
[trade-record-all]of self0 { Z4 U. R0 k# ^; p4 e6 v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. [" J# z+ A* `* m5 l
4 k, l- C5 }. i6 m& Bset [trade-record-one] of customer item (([who] of self) - 1)2 b1 w0 E' `5 J T9 w
[trade-record-all]of customer4 m: K" M5 l. g6 N ?, Z
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))$ D4 G! ~ c* D+ k5 j' Y1 I6 \+ y
+ ^0 |( P' O* V5 ~9 Oask self [do-trust]5 d) H ` `: X6 S5 t
;;先求i对j的信任度
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if ([trust-ok] of self), }! R" h: p) A! P' R9 N% _
;;根据i对j的信任度来决定是否与j进行交易[9 m# {! t% F3 I# y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 R. u) B, N/ Y
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9 U8 }6 V4 o( _, Odo-trade* ~( K s/ i0 r0 X" b
( x2 `3 r) e8 m3 e# }1 V7 W) nupdate-credibility-ijl
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update-credibility-list
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$ x: C$ ?- k" w- O+ f1 ]- k7 a2 c; ?5 n# m! B" r$ Q/ q
update-global-reputation-list
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poll-class- w4 K/ q9 ^8 Z' K8 X
6 S, c2 x% s4 S
get-color
! ]7 B1 E9 V1 c0 z
p1 J# c7 g$ L' q1 P) b]]# E Q& z3 W q4 V
2 |' z! H) r5 Z" y
;;如果所得的信任度满足条件,则进行交易
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! }4 f9 w+ b3 @8 b8 r p[4 s9 H' ~/ v' v, b4 p7 J
( S+ h q' G( |2 @: crt random 360. @5 M$ {9 b: `
3 V' [3 Y" v rfd 1
1 V+ S3 z2 H$ x2 w& q' V+ a. |% X% S9 W3 N4 L& k' i
]
( h: M' U# V0 P+ G& w$ d
1 G* M, v8 L6 F$ ?5 H. F8 N, b5 I7 a6 Iend
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to do-trust
6 w5 I: x& ], V7 |- q0 zset trust-ok False
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let max-trade-times 0
$ }" r! \7 G k0 v8 x. K& wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 \6 S3 C; @8 K7 A- H: @
let max-trade-money 0, l/ q8 }" K2 p e, ^1 V! `$ w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: z+ \9 Z, `9 f* plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# L3 y6 X6 s0 k" Z
4 w. L8 ?) \4 P1 y. u
% e& @) N d8 b- u: O, n& ^get-global-proportion" u, {; j# c R3 N" X) v1 D
let trust-value
# z/ V$ d3 Z# a( F: X* n# }; {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)
9 V& o) w% w! V! l; F& {if(trust-value > trade-trust-value)! f& K7 C5 D2 z |# K' I- L; A c3 |
[set trust-ok true]
' y9 ~/ b0 V1 `$ C4 A+ Rend
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" y) V& c$ s" M. T" ]0 dto get-global-proportion* U9 @9 q4 O; D: I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" t1 F9 Z5 A' X6 n) g# P8 T
[set global-proportion 0]! g: y8 [# C+ q9 Y: S: r0 r U
[let i 0. i, a2 W$ L ]4 O. l6 I9 L2 x; S; m
let sum-money 0; Q- h2 O/ ?. _7 h0 J, h( F
while[ i < people]
7 w: I$ e6 \9 f- p$ o8 j& }: K[
8 j5 P& B6 U3 }! M" |+ Oif( length (item i
: F( N* ~8 i# t' U& Y7 T/ i[trade-record-all] of customer) > 3 )
6 P) I$ w+ N9 k# Y3 B, M[6 Q- K1 I$ x2 |
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)): C8 N0 t4 Q6 F( _
]
& V$ f: r4 V5 y4 W) M]- [% X$ P" a0 }" v3 |. P
let j 0
/ b0 l2 |: a) m5 ?let note 0- H; J" Z9 I- a6 R: y+ _
while[ j < people]8 c2 J8 m |" G) K2 I& ^* H# n2 L
[4 s2 i4 u6 l4 L% v) E" s n2 F
if( length (item i
- q2 M% S0 P/ f+ G) e, g[trade-record-all] of customer) > 3 )
* |, L/ H4 R: j7 Y[
0 R, ]8 _0 H( r) r$ l, {/ ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 Y5 P, D* i( i) f1 Q: g4 t- C[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ o2 F! H, v8 y- X8 S7 o% y4 x
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 r, o8 r& V5 m/ k. ]]+ w9 c- a" |$ c
]1 Q$ r4 R# l: V& O* k0 e3 a
set global-proportion note
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# W8 t. t0 ` o! Y- ?" C. aend7 |, R+ W( o: D: S8 ]! n. N% F3 J
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to do-trade1 o- U2 h! C3 Q5 w4 a
;;这个过程实际上是给双方作出评价的过程
' o+ l* T" n) e( |2 I' qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! @' O2 [ U* A8 d! s/ U& `5 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 V: ]1 ]! G0 o o& J
set trade-record-current lput(timer) trade-record-current
% Q2 j! k B& b/ ?;;评价时间5 h0 }! l& X2 S$ K% m" C
ask myself [1 f. i1 l5 l' y3 g5 e" Q
update-local-reputation5 [: {: L9 N! u: H# t
set trade-record-current lput([local-reputation] of myself) trade-record-current
3 b* @4 }" Z) g9 t1 @$ B]
2 j {( J7 ?0 d) r. yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ S, E# K/ {: e/ N* Z N: `, e;;将此次交易的记录加入到trade-record-one中
9 Y P3 u) L' s7 E% D/ Zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; W* ~4 I9 S8 k6 V) U8 o" Ylet note (item 2 trade-record-current )( c' C- M: ^8 D: O. c
set trade-record-current
8 w: G: C( _4 [(replace-item 2 trade-record-current (item 3 trade-record-current))8 D; d" R) x4 T; L- i' ^, @
set trade-record-current' H: B6 S) }( ?: W G
(replace-item 3 trade-record-current note)
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ask customer [
9 B$ C2 H# s6 O( N8 `1 Xupdate-local-reputation
# V: q* X" q+ P4 Iset trade-record-current/ m0 `2 w# S+ e2 S. V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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2 z& H* I+ K: i9 s/ q& U5 O* d
1 `# n5 \0 z H- J( G' W: [set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 `. n. a4 r( ~4 ?5 ^+ `
3 Q" D, f9 L# o5 M. ?7 pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& ^: a3 i5 V) a6 d6 I; i7 N8 c
;;将此次交易的记录加入到customer的trade-record-all中$ u$ L% ]* y9 k6 O6 e& e1 e
end1 r( d4 S+ w6 [6 Q& x
% Y6 y$ b4 N. ~) D4 ~$ }& V0 r
to update-local-reputation5 i5 w8 s3 y0 V
set [trade-record-one-len] of myself length [trade-record-one] of myself
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: o- }4 T/ r i3 `/ T;;if [trade-record-one-len] of myself > 3
! Q' P) `, |. }* gupdate-neighbor-total7 `- S& m7 `) P1 [: Z
;;更新邻居节点的数目,在此进行
?/ p+ O. Q; _7 A" K9 H( n8 v% Glet i 3
: Q+ X# [) v( k6 J E& ^+ m, Q' Zlet sum-time 08 H6 t( o( F' \% k0 F! K4 _4 K
while[i < [trade-record-one-len] of myself]
8 A) k& q3 q M. M5 \/ r[
# T5 W0 E0 ?# Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% s& Y6 g; `0 f" g, _, J- v zset i; r2 q5 Z- B' Y# [0 C' ?" ~
( i + 1)
$ T: D/ G- L, H3 q0 ?]
- h u. |+ j" f% V: r7 L9 Ulet j 3
! |4 n/ ~" p2 I' Z7 O4 m+ mlet sum-money 0
# E6 w& \/ N( p5 z2 swhile[j < [trade-record-one-len] of myself]
) f) N. H5 }1 Q6 q. l. c8 \; t8 ~[ Y( l- R, v% a! ~6 }
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. \5 ]& g6 M5 s0 b4 ?set j% h1 ^; J. d$ O, i% _. V% z2 S
( j + 1)" K4 O/ F# r! k* ]
]
9 s4 e. y7 J+ _1 |0 ?1 P$ tlet k 3
% [$ D6 [8 Z+ wlet power 0
; b D, t) b3 _ N; x rlet local 0
0 k2 ?" F2 X, l# D3 @. S! Jwhile [k <[trade-record-one-len] of myself]# n- n4 Q7 p7 }
[! V/ i/ P- X- X$ [1 T
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)
) D& x" ^* a$ [% h3 f7 M% \set k (k + 1)7 [$ @# i2 O: W4 D! m1 u
]
; ^3 X, t% R V# a: }* Bset [local-reputation] of myself (local); X+ B% Q3 S `3 W8 _, Y( t! t
end
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to update-neighbor-total
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, Y, @& ~) E% u1 h5 p4 Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 l* ^4 N. K8 A* ]
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a: ^+ z' Y& q" a# @& G# M9 cend3 U: m- y0 g! G( z" r
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to update-credibility-ijl
f& z8 @: s; R0 r2 B+ x
/ N3 n% r I& N;;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。) A+ D- K- k( x3 u# X
let l 0: f; G J( _& ?$ ?, S; D
while[ l < people ]3 O: g1 [5 c' l+ H4 @
;;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
$ E, F/ f/ ?4 e[
8 C6 x, U- U/ l7 Q; ~1 X" r s6 m6 F3 Y. \let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) t1 _8 |5 f3 ]. M) w2 @if (trade-record-one-j-l-len > 3), _- b1 N$ J0 {, b. Y
[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
! d1 [+ x; \% e- L7 blet i 39 \! i( S+ ~4 j: M& W" l
let sum-time 0
, q6 F) v5 b2 M% J' R( v* Bwhile[i < trade-record-one-len]8 P, v; G8 f- E( h& Q
[
; E" { P D" |/ R' f7 Pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ E/ Z' G+ f7 A6 b b; w( a
set i! q8 t* ^0 f* f, _" j4 n7 }/ s
( i + 1)5 K) [8 d' n p z( U
]& s7 B5 |: B8 t$ k7 M& e
let credibility-i-j-l 0
1 d; Q3 L0 c% B% @8 i# L;;i评价(j对jl的评价)
{' g3 r; R" w' Glet j 3
4 `( d2 h1 A0 {/ A, H" K/ G7 ~) d+ {let k 4' k& @; p6 k Q/ e
while[j < trade-record-one-len]) G) o# P6 h, P! O- t) N
[, ] T4 y" @! m: I6 U6 Q1 h
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8 Y* Q6 D$ r7 p- d* B
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)
- o) X# l! \5 tset j
( H1 [2 }3 a' e6 F* N- R6 b( j + 1)* r: g% i% T9 V0 ~
]' L3 [( P8 ~9 ?$ h- i' X
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 )) Q- Y. y6 F4 a' x1 V
" V* J- w* \1 ]2 v% I5 a4 ^
2 y5 z# \9 x7 q. r2 g5 m! `4 Q2 @5 Rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 E+ p7 i% E" T# R1 c* f;;及时更新i对l的评价质量的评价4 `( J- F3 s: Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. u; m1 c5 [3 |% K: ~: t% Eset l (l + 1)( V2 [# e, g4 L2 f* z3 t [
]$ ?: u. Y8 g4 l0 H* _ b2 _6 V
end" F- T+ Y7 A& [- _9 p9 h2 @9 W
5 \" Y; H6 v# ~* [5 k2 Ito update-credibility-list
2 ]9 s! |8 f4 a2 @$ ?let i 0! |. C- @8 A5 t3 ^8 X3 ]* P
while[i < people]" M) u/ f& m% W% M' o: L1 N
[, h0 z8 c9 A. I, U8 U6 C9 a
let j 0' K3 ?9 P$ n1 }; I- d
let note 0
& C7 W' e0 E% z# e8 mlet k 0" f: ]. s) l! G% M) Z: `
;;计作出过评价的邻居节点的数目
$ _1 u# y0 z- z* F t, Y1 x4 Lwhile[j < people]
: K8 _/ r% e; I* W[
, B7 Y* Y$ d! S, w9 h1 s7 lif (item j( [credibility] of turtle (i + 1)) != -1)/ X. v) V2 f" H# d/ p+ x
;;判断是否给本turtle的评价质量做出过评价的节点
' l' ]. R( s- {5 n$ @1 o$ X[set note (note + item j ([credibility]of turtle (i + 1)))' x+ F) r3 h& L0 X: [" @% O
;;*(exp (-(people - 2)))/(people - 2))]/ i9 O' N4 u1 s1 B" n- S6 ~7 W& q
set k (k + 1)
0 c: @: Q" o; _6 s' K$ f+ }$ V& t]
4 J; t: f H1 e( E: d& e9 l" Jset j (j + 1)' ?0 r* h; ]+ Z, G: e! m
]7 \* [5 {. d1 l6 u. j# B& f
set note (note *(exp (- (1 / k)))/ k)- z2 K# [! B8 W
set credibility-list (replace-item i credibility-list note)
4 s* s' Z& q1 W: ~4 eset i (i + 1)
7 m, S, U: e% {3 w]
" t8 o0 H" T6 I0 pend3 I+ _4 S' P0 u' z ^- u" s/ [0 s
6 Z7 n9 V/ h2 N5 x" `to update-global-reputation-list
3 W6 y( v+ u, z/ B3 Alet j 0
( _( G3 c8 M3 h' Q4 k# R, L' Fwhile[j < people]
; d% b0 P) R, t[
2 m. Q' U' L) ^ o& Z) alet new 0/ \, B. j" M; I% J
;;暂存新的一个全局声誉
+ T9 i( S3 U* j3 P- ^let i 08 d+ [- e1 w: }: P' C6 o
let sum-money 0
6 V3 D2 E3 E1 g& B7 [0 Xlet credibility-money 0
% q8 E0 F4 t7 ~8 @" m5 _ Uwhile [i < people]- b; [3 \* P8 }+ g. q/ \
[
/ Q" R6 l" s* k! m5 `7 Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! }, c* b7 }8 Z6 Z% Tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). D) o/ Q5 O/ D0 o- D
set i (i + 1)* X4 t. H M3 m3 v* ^( J
]. |# T; Y6 d5 c2 B
let k 0( z; k* G! i# E7 ?
let new1 0
# V' V9 i* A& i5 L. lwhile [k < people]( a! P: @! c: Y0 c; @# [& k' x
[
8 n. {1 P5 ^2 }8 `) R) I, x& d6 Eset 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)
8 d* ^& [! y% C$ G$ yset k (k + 1)' R; O# B ~& Q+ A' z
]
4 \& Q7 w7 X/ {% d, l1 rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% K* Z; G! W/ ]# }5 `set global-reputation-list (replace-item j global-reputation-list new)
& o6 i) h; G6 A- h/ h; _set j (j + 1)8 t5 b+ u, c+ ^0 W3 e8 M
]$ d" z1 B7 m- w) `/ K1 B5 x
end3 \: Y% e6 D& |
& `, B4 p* D. m# f* L# f
; l! R; z2 I- D: S9 Q# k
' F B8 a. v1 Zto get-color& I& x+ G# r4 r% e
: [ m! Y4 D$ v) yset color blue
2 N( @+ |6 A7 \end
& ]0 o1 {2 ]' \& z7 ?) j, F" ]5 }; i6 N% u0 j6 x
to poll-class1 N! ?/ D, a- n7 k9 a( y; Q
end
( q: [. @- T- s3 P! X- p+ A0 Y2 e$ ]% N- X- K; \
to setup-plot1
) u1 s; h2 Q. Z/ `$ q/ N# W. ~6 B% k- S
set-current-plot "Trends-of-Local-reputation"
" V/ X# r! {2 Q; z$ |( M6 e
% G/ H! _3 ]3 O+ m7 ~set-plot-x-range 0 xmax* w5 k/ |# B5 z# W( C
; ?* G5 ?* J/ q
set-plot-y-range 0.0 ymax
& p! X6 X8 u$ pend/ N4 B0 S g' ?6 t8 G7 G4 ^- R
/ g7 `5 T6 o3 u0 a' w5 Pto setup-plot20 K. y1 B- K; j4 q. _ ]1 i2 S
& J' w: A8 y+ @4 z
set-current-plot "Trends-of-global-reputation"9 h8 p5 c! H" j1 e" M6 U
7 P, c% M; z c M" N! h# K
set-plot-x-range 0 xmax
. s" v* I+ D9 j, z2 m6 ~! u, N; v3 u* V+ b7 j1 Q& u
set-plot-y-range 0.0 ymax6 X% R9 ^' A8 u
end
& _, U6 I! a! H0 Q$ a
) f% R$ U H5 ]6 X# H4 Cto setup-plot38 I# Y V" Q" W4 o6 \" Y
' ?7 t. z S8 B& z _+ pset-current-plot "Trends-of-credibility"
$ Z# |2 i- V6 x1 |; S6 x2 l% N o3 x. ~) h7 P3 M1 ]9 [0 l( r6 g) C
set-plot-x-range 0 xmax2 ~& R$ v% M! t5 V& U9 z$ A9 A6 T" o
3 Y7 o6 s) \" I
set-plot-y-range 0.0 ymax' g- E2 V3 e F! t; X" U, v
end' o/ G, D& ~" K
4 o( G/ e5 V* z( h4 ~- g
to do-plots3 `: V$ x* A0 o! G
set-current-plot "Trends-of-Local-reputation"
5 J* ]; U4 j A+ I% |; W# H+ \set-current-plot-pen "Honest service"- a% N- V' q3 v& m# C1 E" \
end
/ x8 n# e9 B1 a8 x* X1 j4 i( ]7 p5 j C0 |% g! l P3 _9 w
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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