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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
$ J7 t& K4 T; N3 u+ }2 I f: Mglobals[; h$ {1 J/ G: h0 e' }5 G7 ^' w
xmax
% y% [. g$ Y0 d! u) X' @9 S0 dymax
/ Y! ^2 a" ]7 I% mglobal-reputation-list/ E/ L _9 a4 U! S# f
& i) M) ^" z% S;;每一个turtle的全局声誉都存在此LIST中' U0 A9 k, v6 R% p& E/ \- `/ w
credibility-list
7 x6 @" x, t3 f$ D+ Q: d;;每一个turtle的评价可信度
4 `2 w% Y4 R3 N% P* t% _- Hhonest-service; H3 q/ x# p, O9 G2 ^' ^
unhonest-service* T& o. V+ c/ V0 n2 S: S
oscillation7 w/ _/ f# u- R( t7 t
rand-dynamic
5 u+ b, w2 }; i' K" ]) _6 J]
$ d/ F4 ]& G" y/ L6 s- E& k* J9 [
$ O# j6 {. z: f9 mturtles-own[* E0 {5 ?* ]+ ^" ]# i, r P/ |
trade-record-all
, e/ y& ~9 @; r9 R;;a list of lists,由trade-record-one组成
: E; }; h! f6 P7 C: U/ U. H1 atrade-record-one% ^- [& Y. ~1 x( y% p
;;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]]; [8 Z0 \2 W Z2 d
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]5 G: w; U" O( Q- q2 }* t. }4 Q' ?5 T
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list0 h C$ K, o4 l% `# J
neighbor-total
- q1 L/ ^5 g- x* q# `;;记录该turtle的邻居节点的数目
4 Q. z- t9 P" F3 l z; w- wtrade-time8 U9 m: D0 F) _; y# T) f, }* l
;;当前发生交易的turtle的交易时间1 a/ m% t2 ^: }0 {1 Y3 [
appraise-give- B) }, [8 E1 {/ f
;;当前发生交易时给出的评价; v3 a% U: w8 B. n- k3 Y( \- t
appraise-receive* t. [( x% @: b
;;当前发生交易时收到的评价8 K, \* ^ b# V
appraise-time$ b6 G3 @7 R) c
;;当前发生交易时的评价时间( J- A% h1 F6 |! \. M7 d
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 h% l+ T8 E" {
trade-times-total$ M1 y; [7 \" K) D& D; h `1 X: w
;;与当前turtle的交易总次数9 ^3 C- k0 M- W8 O
trade-money-total
& `7 |" g% K6 _: G;;与当前turtle的交易总金额
0 a+ Y% O, o6 \2 ~) K0 J# j/ N, Y/ alocal-reputation6 H7 }3 v! [$ ^: h
global-reputation
1 y! U3 T6 g4 d, ]8 ^credibility: S* u! _* R7 _. s, Q3 o1 j; q
;;评价可信度,每次交易后都需要更新, u& Q! \7 i4 C" `! U; x
credibility-all6 x7 Q, b; B- R
;;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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! Z' ~/ M4 h; p' Q! ?/ q;;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* i% P# |/ _; {credibility-one( t7 y4 n0 \9 o! U' H' m' P
;;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 i9 f5 T1 |. Y. l2 m
global-proportion
& w+ Q0 @5 \& T# I( \7 j+ ncustomer$ b5 V4 j/ H3 l' S+ u, H
customer-no
! ~! l, U, R$ @; r, f* s7 \2 ltrust-ok3 J7 j- k0 G: `6 s1 {
trade-record-one-len;;trade-record-one的长度8 [% F0 `" v0 a7 G: ^ O( V
]
3 |5 q1 m5 u1 I2 H3 a" N* W, Q6 C8 G7 \2 |. s
;;setup procedure
5 }$ [* s! R& g/ |& t. {3 ~2 F# Q, y/ Z4 i" E
to setup! h7 s+ t& x, p' k
2 d1 V& j7 k4 H* X# Dca: N3 x% f j2 h$ k. C4 g" ]$ w, C
. j) P/ P5 t* w. minitialize-settings
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crt people [setup-turtles]5 \3 J) J& Y: p: D8 N
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reset-timer% m! [. ~) [2 m7 G; [
5 B( q* ^, m$ q) s, x$ _8 Z
poll-class7 D+ \2 L- _7 K
A/ }7 Q4 `! C/ `6 B' [, J/ Fsetup-plots
1 {$ h0 e1 B1 h7 \3 z/ o8 Y
+ q R1 L* t6 _: D( p' udo-plots; R d5 f# Q4 b3 T @) \9 L& e
end# Y* ]. x' q9 I* z7 E$ x4 G
4 B" B' w9 g5 G1 M8 h6 N& B) ~to initialize-settings
- q8 v+ n" n; H
+ H# ?) w5 [' _ s8 S6 g" o6 `. |set global-reputation-list []& z3 [2 `" X! R/ ^# a' ~
6 a7 s# e! ]2 A4 H3 c2 Xset credibility-list n-values people [0.5]
' P1 @6 B1 \7 N6 g' A+ e+ h, m: q1 y7 T. T$ J$ M/ G7 m
set honest-service 0$ `2 A+ x! }; u } c1 y
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set unhonest-service 0
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$ l8 p* m4 H8 Y1 h! r" W* pset oscillation 0* ~/ g/ k: `/ E0 }8 o
6 l9 b# s# z5 d+ fset rand-dynamic 0
3 S, b4 T$ \$ \+ i0 t: L$ xend" n; ?! P ^+ _
G* v% p- R9 u3 y0 O; V# B" L% ]
to setup-turtles
! H3 J2 N! P( b2 h- ^4 {+ S+ bset shape "person": V) d& E8 d _6 P/ S' G1 U! K
setxy random-xcor random-ycor" d: w1 ]9 V0 b6 e u( X& x
set trade-record-one []$ Y4 e, P) m: y
% h$ B) h. d' ^% N3 \8 mset trade-record-all n-values people [(list (? + 1) 0 0)]
2 {7 I7 r6 b, Q( N" L
+ A. V: m( b" {' N' E) \, b4 wset trade-record-current []
% o. R2 L' [) J7 g! tset credibility-receive []
( |7 v" g/ h% ]2 `+ I0 l6 b5 dset local-reputation 0.5' f9 B# T. b' u! g0 F( P
set neighbor-total 0+ d y, v+ [- U
set trade-times-total 0
6 }2 m6 r7 j. s1 c0 [0 Q5 Aset trade-money-total 05 @% Q3 W$ c. ^8 l1 \. D1 c2 {. F3 M- g
set customer nobody
9 x+ r1 J* { F0 ]( eset credibility-all n-values people [creat-credibility]
c0 G/ m( t8 y: K1 n L3 F; n Gset credibility n-values people [-1]
4 B: }5 R6 A5 J% o& Z7 Kget-color
; Q+ z1 Y5 O' F' v( ]" ^+ f' k5 z$ Q* Y% ~) ^- Y0 ~0 S
end9 z' w0 W# w6 a: C3 x- h: `
$ N9 s" Y6 S' Ato-report creat-credibility
/ y" C) G0 J' d* z& Y) q( s' Vreport n-values people [0.5]
_2 R% W( K$ f/ |" P+ t9 Send
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to setup-plots- y" y6 |" T: `. e( g: {# {2 O
: v, n1 N% Q: A6 [
set xmax 30
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set ymax 1.0* P# I' R2 B6 X+ o
+ @2 o5 a3 ~# K
clear-all-plots
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setup-plot1. ?, P0 i; A- D8 R. W
( m0 R4 F5 M2 v! C, A: p9 Q+ E; ]2 i+ ssetup-plot2
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$ a! D; W- x4 j* K( ^% |setup-plot3% y9 d: I" X& Z7 k0 d: E0 K: J
end
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7 R" y8 W/ p# X; t8 ^+ E;;run time procedures
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to go$ \$ V9 n+ N* I
; K* ~. F" b3 h, r; A# z: n/ nask turtles [do-business]
, [/ t& k, g% V( @8 V4 uend1 U$ }8 f' [0 K. K3 u! i' G
: m9 v- H# E' g
to do-business
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% v# B1 r! O$ I: ?. Art random 360& ^4 q% P5 _) k" i( h
$ C( z8 q5 V( Z! l. Efd 1
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ifelse(other turtles-here != nobody)[
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. W: `9 |; b3 |# m( mset 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)9 c! D7 {4 g4 J% D) g4 l
[trade-record-all]of self* h" N7 A7 |1 v$ |- o1 O
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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9 s4 B+ _- X, y$ B+ z7 V1 yset [trade-record-one] of customer item (([who] of self) - 1), Z6 U9 ~" q g
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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0 v4 T% }, n1 l! ]/ yset trade-record-current( list (timer) (random money-upper-limit))+ ?8 B' }) \ y Z: i
7 ]3 E* f2 s$ H) Y+ y: m
ask self [do-trust]
2 Z% b3 t- `' w* C;;先求i对j的信任度
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if ([trust-ok] of self)
1 v! Z$ K/ Q) n* @1 z;;根据i对j的信任度来决定是否与j进行交易[
/ r( f/ F, L$ o& @ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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1 H8 M1 \, p$ s[
: J! R4 S. X8 W5 j7 p! u: I# g* T
! J2 G' c5 `* M$ |; o1 s/ b: t. Hdo-trade. F# j) f [3 m4 y, T6 |' F
5 ?) I( s7 v$ c( o( t
update-credibility-ijl6 H& c/ ?- h0 G) b$ ~# j
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update-credibility-list
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+ Y( L% \: M0 l! ?" R0 f0 G: h1 [
) s, h1 [3 y- }8 q+ Z9 \+ V! U/ bupdate-global-reputation-list; x9 _) ^$ s3 P- H u0 \2 a( B
& R T9 b1 T. K! h. x6 s1 Qpoll-class3 U, W4 P4 A6 Z2 J/ K) ?3 a. F
+ F, _) s& t7 w N- sget-color0 @' P: V7 e% ~# F' I# I* x$ A
6 z1 F0 ~4 C& E5 i. R]]( \0 `6 {% r, p, Q, z+ v9 ]
: @9 O7 d @" f2 c/ T;;如果所得的信任度满足条件,则进行交易3 t/ r1 q) Z% S! h' h
* Z3 B1 T! ]! p[
+ \( X8 d* ]6 Z& r5 B, J# I7 Q! I; v+ e( x" K
rt random 360
5 n" H" }/ [; g; M+ @: X: {
+ n0 _' P9 A L/ \6 X1 p7 l: kfd 1
! [, O; t# C6 K0 m3 O! V1 j4 o8 f2 \% A4 G5 J
]/ m" v7 _( {3 K* g5 Q' ]
+ g1 o6 a5 E$ Z, r, oend
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to do-trust
2 z+ j; A9 N; O0 C7 nset trust-ok False
h' j( \4 D7 h! x+ q) t' E! h) _8 m5 I. L
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let max-trade-times 0 r6 S3 H* A7 a
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 _8 S1 u- I9 d- |1 A) `, y
let max-trade-money 0) B; T* [" H$ N; W* K$ R) G$ R
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 |- X( S4 H3 d4 c( {" l/ 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))
D& H V% z7 A! e' E$ F# n0 J2 _
6 l1 w' A; Z( O! W6 @
get-global-proportion9 W% ? f g. t4 r+ y. L' H ~( \
let trust-value& n2 Z' n9 N" j* [( i& S
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)
; I' v5 y7 d& gif(trust-value > trade-trust-value)
6 J k- U* _4 c4 I. t [[set trust-ok true]! ^. g+ O9 u$ P8 w X
end T* K- L1 a7 `$ E- Q$ ?9 N
5 U) W/ C/ s2 P6 H6 {
to get-global-proportion
' P) c9 ~# D2 M8 l S# x8 c/ oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: I. V8 p1 W9 Y- z- o O% j7 Y! i[set global-proportion 0]
5 q* h: ]- Y) ?4 u[let i 0
6 t# S; }# Z m" o" X, Zlet sum-money 0
, `/ D4 C* r; P2 I1 R' |' O; P$ Pwhile[ i < people]
2 N# k' G/ _( S: f9 c8 g/ M[
) W6 o4 I/ e& W/ o' mif( length (item i
4 s7 m6 i- ]/ a3 |: f[trade-record-all] of customer) > 3 )' @) O" ?8 V$ B9 \
[
8 d% k- C y! L+ W, ]0 fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 l ] S4 m$ ~+ i]
+ d# `9 M; ^/ J% n" f]
" @6 N; _; O6 j; ^6 rlet j 0, V& S2 v' j! P4 ?: }
let note 0
V K/ ]* z$ Ewhile[ j < people]0 O+ ?9 r$ u8 R. ^8 L2 J0 ?
[" N0 X5 v$ ^7 {+ l; w8 l2 q2 i
if( length (item i
% Y! r; V0 c& T- \[trade-record-all] of customer) > 3 )4 ~3 S" b% x! D3 @
[
- h$ r1 Z+ j4 L/ i# a, [: e7 qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# H0 R6 }' E$ H0 Q" o9 d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' _- R1 `1 i8 G9 ^8 p[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 j! \- ^) V1 G- B]2 b4 u% k( e' `7 @
]
w/ R/ \5 f4 n! lset global-proportion note
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% Y; p# N( Q1 z8 C/ N! Z+ @( ?end7 z6 `7 K9 F0 E% d( B
% K$ c3 s2 v4 }' Lto do-trade
* L! R7 l0 |. E- m- |;;这个过程实际上是给双方作出评价的过程
! k: c* G; J# v5 G5 n" ]+ Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 d7 r/ s" |7 I' h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 q) w* k) s3 K- J% xset trade-record-current lput(timer) trade-record-current
6 A- f0 l4 @9 Q4 H }0 W) F) A* _;;评价时间
$ r1 n/ N0 W, u2 s$ \ask myself [% a4 P: U$ [) g0 b6 |6 @2 n
update-local-reputation0 E( O9 I9 I6 n, E6 C
set trade-record-current lput([local-reputation] of myself) trade-record-current' l& ~# p2 [* ?& [# y
]
! {6 ?# w2 V; ~9 G3 e: S0 l$ Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, ]9 ?' @4 ], q# n
;;将此次交易的记录加入到trade-record-one中) Z5 y& j0 p. E" |7 C2 _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): e# p# u' p. r Z% h& m: i
let note (item 2 trade-record-current )! v9 w; h" }) m9 u/ i2 R( L9 N# a
set trade-record-current
' K0 d g, ]0 r$ p) P: y. D+ N; |(replace-item 2 trade-record-current (item 3 trade-record-current))7 Z' R& ~! ^8 y; E# N3 |0 r
set trade-record-current
' T$ ? q$ T# Y0 ?& }0 B/ p) ~# Q(replace-item 3 trade-record-current note)
7 V( `' m9 H0 V$ V1 N+ x7 R; h1 X Z7 J6 @% w7 K: L
9 q, \ K$ e& G1 fask customer [' L0 ?; N+ i# T& f( i |! u" m
update-local-reputation
! h$ B' @' F; X* bset trade-record-current
, f6 p% y+ T1 o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * N0 g d' S# `5 C( p& ?
]
2 f- g' ?% \1 r' |% t
, R8 L# ?6 w/ j0 B. m' C* M" D3 x9 n) I+ j6 C
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 s# _$ d) I( I
# |/ @1 y R& T
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! F0 w; s( T3 u8 G5 R1 _;;将此次交易的记录加入到customer的trade-record-all中/ }% j- }: _2 I2 q4 @9 Z$ @' A
end
7 O6 R0 N$ W4 g+ a# X
l. G' a+ n( Cto update-local-reputation" o8 D/ f2 E Z
set [trade-record-one-len] of myself length [trade-record-one] of myself
|* ^2 T' z- o+ f. f8 [) d6 a; }# P4 b5 T6 h4 h. M
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;;if [trade-record-one-len] of myself > 3
2 e2 c. a* ?- J- Oupdate-neighbor-total- Z9 [) u$ J" [# J) H
;;更新邻居节点的数目,在此进行
% D% X- ^1 I: ]% Vlet i 3
4 d) F2 x4 T9 p1 w0 dlet sum-time 0
7 ~: \ q9 p* Q: E! k% Z) C Kwhile[i < [trade-record-one-len] of myself]
, t1 a0 R9 b4 N/ F3 s[
, y0 Y& k6 I$ Y2 [set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 `4 B Y) X; ~4 d$ k$ E( ]
set i# t: `" U; n* Y% x( z. [
( i + 1)1 \5 L9 o* a6 @6 u0 z2 S: r* A2 \) Z
]
1 O+ P2 k' A" u' E& a. ~8 |8 llet j 3( K. i. i7 W, N$ u
let sum-money 0& b! B$ p& E5 b4 c
while[j < [trade-record-one-len] of myself]
4 t2 u: F% ~9 w1 V- Q3 r[
( D# @2 h# z" sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
2 p$ Z7 p1 |0 Y- Fset j
3 ^; ~3 q- q: l/ k- n. I( j + 1); n. } c: s) j) m$ X# K
]+ D% k5 `* }" d
let k 3
; d5 U) Z* t$ ?0 ]. h/ ^4 ~& plet power 0
) T" d: G, v+ r1 x# }let local 0
N$ t2 F( L3 Q8 T `while [k <[trade-record-one-len] of myself]
$ u. z" ?" ^% F6 b. j8 x2 O[
, z) z6 h: L" R( o8 |7 ^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) 5 V M8 Z7 |& \! S
set k (k + 1)
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. \# k' ?& _$ ^; e* @' Zset [local-reputation] of myself (local); H; ^# V* i; a: m, ]6 D$ }3 r
end) z, M# z9 n6 d" b+ [; _* ?
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to update-neighbor-total* x7 u! \, j; M2 ^* x2 H1 ~
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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' f) i: x/ p/ p+ n+ \: X
end
2 @7 l N4 b' V
) d8 ?- Q( R+ X+ dto 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。
0 L$ b6 _2 J. e* plet l 0 H) H/ j- ?; u" C8 p
while[ l < people ]
q9 H- o1 b" r& }0 j9 B;;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' [# f/ D* _+ g
[
4 n/ a) t+ q* X2 Plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% ~7 U& W0 Z$ \if (trade-record-one-j-l-len > 3)
+ R3 ]% C R! v' q! s[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 O% M; K& a3 x% c
let i 3$ ~; \+ Z# }$ Y( n2 i9 ?
let sum-time 0
6 B% `) y+ E: T& e& _while[i < trade-record-one-len]7 j3 h& X1 a: V1 p+ [: J6 c
[
6 p' m I% F& @" @' H0 Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 I8 ~8 ^5 `/ x! \9 v
set i
F/ z3 D% j* i- b' i1 k( i + 1)
) Q+ M- L, P+ ~& o8 S4 Q& r! g. b- d]2 ^8 ~2 S, \. \7 p, T3 n6 A( ?. r
let credibility-i-j-l 0
) ~0 g! a& Q0 Q! }% f;;i评价(j对jl的评价)0 c0 v7 x5 A1 `: _3 b4 s D
let j 34 M0 L+ }- m# ~) I) ^: Y, V1 i
let k 45 d4 w$ s+ `/ {, s; F
while[j < trade-record-one-len]
: z5 U& h% E5 n% J% ~6 S[. d. g* \% x$ d( t4 u* Q% w+ O
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
; l, n x X3 W2 M2 n% n) ]1 ~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)8 p" R8 q) A9 G- J: k
set j* l+ d; |4 h% o: D/ o0 M- `* r# Y
( j + 1)
: G( `" {; v' [. k5 c0 L]) B6 H1 E' i8 o: t) Z( j2 i
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 ))
& F) t" D, S5 [. ]- W1 S8 F, H$ k: D- |9 D- c) Q5 S0 M7 w/ j$ U
- D. T! j/ z9 O
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& s- \: E$ v' D) b% c7 @;;及时更新i对l的评价质量的评价. I0 N5 ~6 H/ r1 l# J9 U" Y9 N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. f5 u# }) o# B4 t
set l (l + 1)+ ?0 [/ ^* b9 H& t
]% N/ M4 d+ R% V" N
end1 r; q3 l, v4 c+ B# |/ d/ \
! F" h2 X: l/ {# J* bto update-credibility-list% o7 b1 g3 T' s
let i 0
5 S. V4 i+ P, y/ Owhile[i < people], W* L# _; V8 W/ [) u3 e8 N
[
& E4 p" B, n6 nlet j 0
: \8 |$ _5 E4 w( flet note 0) {% a- C ]- h- h
let k 09 e# N8 Z, O) n7 j& h6 o" z8 u
;;计作出过评价的邻居节点的数目0 ]! g- v2 R3 J
while[j < people]9 O8 B: v2 a, t1 m* E
[( l: N/ _7 m4 H7 n1 t* ?. O
if (item j( [credibility] of turtle (i + 1)) != -1)
2 ]' E5 |$ B8 X;;判断是否给本turtle的评价质量做出过评价的节点9 s6 Q1 I9 \. A0 G- |2 O6 Z4 w
[set note (note + item j ([credibility]of turtle (i + 1)))
4 w* y0 q# j5 k- k;;*(exp (-(people - 2)))/(people - 2))]
; I& ?8 C/ W9 g. [$ Xset k (k + 1)* Q- z7 e- H& B: n
]- {( y9 O! H. O5 Z( ~8 F
set j (j + 1)
! k, Y) z$ L' n8 A/ N5 u3 @4 c, t]9 a9 P7 _* m" P) x: |$ E6 [
set note (note *(exp (- (1 / k)))/ k)
7 J' |6 L" o4 n; Uset credibility-list (replace-item i credibility-list note)
7 e! q3 N9 d: f2 Y# oset i (i + 1)
) y# ~$ c+ @& W]
6 t% G1 i' M: \0 Zend. `! b# Z8 y- N" T
# o/ j4 i. [* d% R, G
to update-global-reputation-list
. c+ S" i* x# W# olet j 0$ y" J, O. ?$ |. a6 k5 Z- S* N
while[j < people]
# I0 y0 }6 M- h6 u! V: T( p: u! _[
' x4 o# {* x" u' R8 K4 e, x5 xlet new 00 t: ?- l! F; s* |( y
;;暂存新的一个全局声誉2 Q! N* o- r' c K+ A" Z
let i 0
( S( e f* W9 s9 s( ~2 Mlet sum-money 0- U) j$ V' g _. k% q& c3 f: o5 o4 m
let credibility-money 07 P. s! X4 d4 q8 ?
while [i < people]( B! T) e. @; b! u% [# q+ e
[
$ F! w! ?- z- s: C$ Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ Z6 N* i! ` ?( q( R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 o9 c0 A9 |% c! qset i (i + 1)* D3 Y4 P$ _! A/ k( r) E9 s% e% r
]
( M# o% _. ]4 R/ e" \ ulet k 0- G" K U: [( O5 I
let new1 0+ R) j3 w; i/ ?' _ J
while [k < people]$ W: P1 C# J( c/ b- d- O6 t, T
[: ]9 h/ Q; S O, J6 X5 w
set 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)
# Y, X$ t, {4 ?8 l7 s8 aset k (k + 1)* b7 m, o8 h5 Z- D7 {
]
) g4 r- ~( n, U; f% N) m+ J; j+ P; fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) {* Y1 `2 y2 `" n9 Sset global-reputation-list (replace-item j global-reputation-list new)1 ^7 E I, M: Z1 W2 i! @7 h7 ^( q0 ~
set j (j + 1)* n# H. e A# j4 [. |
]
/ }& U9 b- r# J P/ Gend- b, q' a6 x) L$ I6 E2 q& o
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! j9 l% h' ~; B( b/ m$ l$ F
to get-color
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set color blue% E# Q% M6 t+ W
end( P+ A% w3 \9 B) U
0 G. r+ }( h! tto poll-class! j2 |# h& I. g. j/ k
end
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F+ A0 ]) h+ I& t3 x! Z, yto setup-plot1% f$ H! M/ @0 @8 ?0 `) s7 [
4 G6 m( D7 P% q' _6 M7 a, e5 T( d
set-current-plot "Trends-of-Local-reputation". q! l9 L7 O& S+ }
6 a" ?6 b t' L1 {; i; {6 K. K. kset-plot-x-range 0 xmax3 f: l& L; p8 |% I7 V5 c9 k# b4 j f
9 s" i: A6 u- p# N0 c3 Gset-plot-y-range 0.0 ymax
E' q# l1 N9 Gend e. ?: J; R1 m( ~
0 v0 b' a+ l4 V$ U6 Mto setup-plot27 O. X# k$ `1 B' }7 g' C: Y# ]
* M9 Z/ Q5 [4 f/ n5 e% e
set-current-plot "Trends-of-global-reputation": |, \/ C. H) ]! m0 g
. p+ v5 q3 ?8 D& k9 N+ Oset-plot-x-range 0 xmax8 b& L n$ ]. {! {- d( c
2 s$ Y! C2 P8 L) l
set-plot-y-range 0.0 ymax; t7 h- |( W. d& M
end% ~1 E" p$ k9 c, n: r3 F$ N
4 Q6 C8 o" P; v# jto setup-plot35 `4 `; V) O. l6 W
K" D' \# k$ p
set-current-plot "Trends-of-credibility"
" U) }0 ]: i' d1 c' ]- [( M$ |8 ~5 J7 Q( {% h
set-plot-x-range 0 xmax
( X) j2 @/ G8 a4 g0 O0 R! c; ~/ k, d1 T- I% d
set-plot-y-range 0.0 ymax
8 [! {: I: {: p! x) D/ S0 ]end
9 D7 X/ o, I0 T* d0 ]
, K& [5 Z+ z7 }to do-plots* L2 S) [# T. N$ M' C3 p$ {7 g: _
set-current-plot "Trends-of-Local-reputation"- `; M! P+ X3 b' ~
set-current-plot-pen "Honest service"& {, E* L' j* o) F$ X
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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