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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4 K- g* k% M/ Y1 A2 i) f
globals[; E. T% X) \; }
xmax
! J/ ~ b% m7 s5 i. Iymax
5 O( l3 U2 o2 D3 K! f5 t5 lglobal-reputation-list" j5 X& L! I8 O" K
! p5 X, p/ G! v N
;;每一个turtle的全局声誉都存在此LIST中% C. E+ t; w1 ]' S4 C" S/ l' u& U
credibility-list
6 M) j, t! h3 y;;每一个turtle的评价可信度! |* @9 {) z+ d8 s7 g5 N# i
honest-service: l- W; A: X H' p
unhonest-service4 Q& Y8 T a# h& `
oscillation
- Y2 l# t9 q: hrand-dynamic8 q( }2 }8 ^9 Q( t; b
]& f. r1 h5 T) V' L
& A8 c% v/ [, Hturtles-own[ @+ O1 r* _3 n) d7 l
trade-record-all
$ N# }$ E7 ^0 v7 J3 o1 B/ ]5 k;;a list of lists,由trade-record-one组成
$ J& V1 W1 G- M* J0 X9 O$ vtrade-record-one
* `, e& M! g5 C) ?6 c' `;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" Y9 X- E# D9 h( J3 `% d
: O* q Q5 a3 t; R( N' R;;[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]]) p. O+ a- G4 g
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]2 @, J+ v5 Y1 s6 @( Y
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list8 b0 M- o9 y+ \9 j" j$ m$ |
neighbor-total7 K. u# c. H( ^5 x
;;记录该turtle的邻居节点的数目
0 Y$ p" M" Z0 W1 D5 K& Rtrade-time& U5 Y% P0 h6 Y2 S, X
;;当前发生交易的turtle的交易时间+ l O0 Z0 v$ w* K4 ^
appraise-give
9 G* g" u2 Z9 k* }# d. e7 Q;;当前发生交易时给出的评价; Z4 s8 b3 @$ f% O8 N( f5 z3 p
appraise-receive
+ P; @, U/ t8 v0 d- \1 s;;当前发生交易时收到的评价/ f' }3 h( c9 F4 Z: p6 I1 d ~ X
appraise-time
8 a/ o i1 E+ z% u F( T;;当前发生交易时的评价时间
8 `; w( D5 _0 T0 b- o2 slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 n7 P( z8 N0 I0 w' ?trade-times-total3 Z8 B* Y2 P/ X( h
;;与当前turtle的交易总次数
# |5 s3 a" x. s! q1 atrade-money-total
0 W' z- Y( t+ P. X, x: y( z;;与当前turtle的交易总金额9 D% z f, ?, H
local-reputation
& Z- O7 M$ G' t( ?. R) m& tglobal-reputation
7 D/ L1 M4 n+ x3 h5 s5 t" W( ecredibility
: j7 S4 y% u K% W9 s;;评价可信度,每次交易后都需要更新
& h3 A: R# e9 ?6 p: icredibility-all
; W3 v1 n- I K% r# O;;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
. l" D! n8 p5 w" `, Y `8 I; e3 v d# Z- [) e& m. n+ G
;;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 I. }% D) O! o7 q$ Dcredibility-one
1 M+ d! H( G, D6 P3 b7 @( H" d;;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
( Z9 {# q0 T% T$ j- Aglobal-proportion
0 `+ x7 ~: v( K; z( zcustomer5 p% B! J0 l0 p7 H4 F7 V
customer-no# M/ o. F6 ]" {( X1 }$ F
trust-ok% b. N& G6 Z8 B
trade-record-one-len;;trade-record-one的长度
; d; ]- P% _5 w]
8 W; z$ e7 j( o" y* Z1 ^9 n& `0 n- J
;;setup procedure! Q$ _2 Y: P+ z
* V* p l( E5 F3 `
to setup4 q8 i" H3 K* p& W; B% u
& m% f4 v0 ?, Q. T2 I8 sca# i7 W" h# V) M
( X& x6 Y8 x' F+ g7 t3 m p( K
initialize-settings
* ?( \/ Z+ X* `4 P2 |8 N% a" {2 ^* |& L: \- Q7 o6 h2 Z
crt people [setup-turtles]
' A7 W& \+ f, g
) I5 _) p E; {* Preset-timer
1 G6 u$ _+ m' V0 T' D8 _; _3 F
: q' L% y \; L% q) dpoll-class8 u, \7 i2 k6 W$ G2 g9 e! W0 U# g9 p
# Z8 V6 `0 K9 X S0 J* Csetup-plots
0 o4 H- U9 T$ T3 b0 G7 O: }0 l6 y
$ q, v- Y0 |& l; N) Z, Ddo-plots5 R7 C* U0 g% }! e+ m. S& w
end7 c- g \6 B" X( o# h7 i* `
* T" x+ P! C. U4 E2 H; @% }
to initialize-settings9 m- }- w- e/ @( h' b; y+ A2 i
- \& |2 e9 J* t |8 ^9 H& p2 ~# vset global-reputation-list []
/ z. w1 d i. F4 W$ E7 [7 G" U, ]( w0 L! {1 t
set credibility-list n-values people [0.5]3 Z: ^! ]" y2 ~
O! {8 ~- _/ b7 C a, t0 \
set honest-service 0
N: V( s) N% P; r: Y' Z$ j+ p
$ ~" ]5 r3 p( D2 M; o R9 V6 H* ~2 Oset unhonest-service 0
; c" l+ V; N: x4 ~- Y4 t; X s, B7 B4 c& n7 k/ N
set oscillation 0
. k' D; c, ~; p
1 z4 W1 ]0 V, u8 r5 P. }! ~set rand-dynamic 03 [% E& V& ?, y; E+ U
end9 x) y A) C6 T" D7 ^( h
8 U& w7 l( r& E8 l9 s+ D6 Ito setup-turtles
/ L* v" s$ B; u! z$ u$ `4 iset shape "person", @/ K5 c) t8 \3 \
setxy random-xcor random-ycor* ]' j/ [- K; A/ F1 x
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
" I$ l1 l8 I/ H& M* n
2 l* I: N& X# l' q( F9 F3 L3 uset trade-record-current []
6 G8 s0 s- i3 H: \set credibility-receive []
! I9 M: R$ g+ N. vset local-reputation 0.5
1 x, r/ {1 s# Xset neighbor-total 0/ d1 ?7 m4 S, l
set trade-times-total 0
0 v* C9 P, {$ C9 ]set trade-money-total 0$ p7 w4 ^' v0 W; Z: G
set customer nobody
2 y% N/ v1 @9 u: _- y" d' ~2 p) Aset credibility-all n-values people [creat-credibility]: C; F- p0 X W: N# s% M6 t
set credibility n-values people [-1]
7 w) j& j' N+ ~' }- Pget-color
' @1 o% n+ ^# a h$ n0 D' c* O$ @; @" s' V5 b3 h1 X) B* u7 ^
end
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to-report creat-credibility
9 M% I$ }. d+ J' A; Vreport n-values people [0.5]
! ~. D @) ]9 a% b ]% oend
$ S5 j9 X' _% r+ U* @# G( o- J7 K
0 n+ }! ^( G; z+ | v% u/ Nto setup-plots
2 W7 ?6 _# s" R" T& b/ d/ f' j3 ~( R3 m0 P, C& b5 |8 E& d
set xmax 30
+ s/ f: U$ t$ T* D( `' }0 ~) @/ M
! H% A6 Y" S2 M5 U+ bset ymax 1.0
4 D- x* c q) \* o7 Z& X( _6 G2 c# J7 g7 v& i& k
clear-all-plots
( `$ u9 b' W1 O$ L* ]
c3 e4 |5 s* E3 ^2 R5 ^setup-plot1
0 E C/ J2 |; W1 b( _8 t& F4 H; v9 \( a: s9 O2 ]
setup-plot23 `1 C/ i6 z* X/ Z! m
$ w+ e6 v- s8 ?, O- B# h0 xsetup-plot3
I1 K0 k) T$ g& t3 Y& Xend
, G' ?; i. c8 u- c5 o9 {5 p& L$ g1 D" k
;;run time procedures2 L6 X. n1 W. p1 d8 @7 c, }: |
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to go% X5 s" z7 Q. S8 D6 A" {4 {0 W4 Z
! K% ]/ V# b7 r1 \: [, T) f. A! zask turtles [do-business]
3 _) |% l Q$ E2 _" Aend; i; v) d" T( A& k, l p
" W' C$ k2 _# S2 _2 Tto do-business
0 z2 Y' ?! M7 K3 v( Y. y3 B
* j* e" X2 z9 U* i6 G/ X, x3 Y( D$ }" f( {' Y% k" K/ |: |
rt random 3602 D) K* J/ J% g1 j- D/ F8 `: Z
T+ M2 E& l# M
fd 1$ ^/ @6 K& @: R
% [' \ B' i) N+ ?" Wifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here+ }9 f; D# ^# h+ o8 O* e
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;; set [customer] of customer myself) G% \! C% l/ K& \# [
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set [trade-record-one] of self item (([who] of customer) - 1)- E# V/ c5 e4 W3 S+ m
[trade-record-all]of self
9 o) \( {, ]3 W+ N;;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)
% }+ J$ {" c( o# ^5 d[trade-record-all]of customer% G, H. y" v$ n6 E; {6 Y
0 g* b n' R9 j A) m' F9 Aset [trade-record-one-len] of self length [trade-record-one] of self
0 m _ o% m" Y9 K6 H* C4 f5 `+ M( r8 P; a1 A7 O
set trade-record-current( list (timer) (random money-upper-limit))
' _# p8 i7 g: w9 M$ r
8 o. ]( p$ _ h" O, y* jask self [do-trust]
, J6 p/ J1 G( X$ H# ?;;先求i对j的信任度
7 I$ t5 G# E. g& c6 N7 J3 A
: c% f8 _! ~0 fif ([trust-ok] of self)
& N* p" @4 L( @: T+ r p;;根据i对j的信任度来决定是否与j进行交易[* A6 s& o0 C. j
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" A" {1 }7 Z$ c- q; o
, Z7 b& Y* E8 S' z
[, x% x( s7 `% x- o7 h! b y- `* a
+ i, Y. @/ W6 M/ bdo-trade: t6 x# N' h4 D4 ~# [
4 y3 X; ~& [; B7 D
update-credibility-ijl
* v1 f& c) K' [
" R& t F. |! v/ _update-credibility-list
0 b( T- `$ m0 M2 z- B( a
& `. F# ~0 r9 w/ w2 i
8 B: D9 U; [' r" e- D3 j' F% eupdate-global-reputation-list# D+ J* ^6 a; }3 f2 \
* I# ~' x7 r* C6 J+ \8 k; @
poll-class
5 I( x# {; Z8 A( i) {: }4 V3 X
% `1 V+ ]- y8 Y9 I) q& Aget-color
9 k. o+ |- {! f" H
5 n! h! Z' n6 C% O]]
! o/ {$ s5 `3 p6 a3 S+ i0 i
3 K% b: M' F& F;;如果所得的信任度满足条件,则进行交易! i, k* |& H: c/ }! `' W& \5 h1 k
V. W% J: U6 H, ^
[+ }, m4 w; o4 N& y* h) O
1 T7 I# M/ \5 k T6 ~. nrt random 360
9 h, ?& H0 P$ V) S" i: s6 {9 m+ ~) C: Q# @* G+ U8 {( f
fd 14 i& x0 Z. c' C9 Z- b$ |+ w
" } R9 H( c" o: o' F4 P]
3 N5 @+ a: _/ N/ j" g4 x6 o$ f4 Y3 z! L$ p% J6 x' i/ e
end
0 j. y0 L! l) M9 t8 K
8 J# e( h% ^- l" a# x" B7 {% U% e. gto do-trust
) {9 I/ c6 _% K: Uset trust-ok False4 b" X/ T9 {9 a) _ Y( K
* P3 I" [% v# I& B- w) g ^$ j/ ~' t$ u1 D) P& U: z, ?# K3 t
let max-trade-times 0
3 i# r+ f$ `! C$ hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% f4 t9 t8 o" d1 w6 \
let max-trade-money 01 E3 c0 u* o/ u4 g2 J& H/ J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) W" s' o2 J$ } L' O
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, w z3 v. E3 X: W( [7 _" W6 Y: ]" y
1 g* P M6 U! w7 x
get-global-proportion
$ ?/ e2 P# A- r ~7 m) E( Klet trust-value
9 | n: P" M! T, alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
* D) C$ b e x6 O* bif(trust-value > trade-trust-value)9 A7 X5 j* @7 y/ ?* O n0 _
[set trust-ok true]
; G5 V* H+ ]1 D- Zend. h: b; W3 a1 o' W( Q" x: N7 U0 f! G% A
' H; h/ Q. T6 T: L4 q1 sto get-global-proportion
/ ^$ S: z/ e/ E3 K% [$ Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) R H, m u. V: N: b
[set global-proportion 0]' U) _* C9 k! R. D
[let i 0! ^. j5 G6 s$ l$ @; a
let sum-money 0. f7 C, {5 ]# l( O" P, j' k8 j
while[ i < people]4 ^/ F" @- q1 d4 x; t: x
[
* h, e; \9 E2 J/ w/ {if( length (item i
0 P' b" B9 x& U" B[trade-record-all] of customer) > 3 )! U3 g+ h( F! a: n5 ~' p5 y, C* M1 J+ l
[" h* C4 G* ?1 M) A( Z! N1 h+ o% o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, B& i5 t; X" O3 D]# d& Q( `3 s' o3 ^
]
4 C1 z/ x" a- e, s4 M3 c) O" Blet j 0& a0 r1 \. J; z9 L* E
let note 0
; U% u f. p0 L9 M! fwhile[ j < people]
. L8 _ w4 U, s" t7 e' e[9 I; v# |" F$ [7 l% `( g* N
if( length (item i8 C, h u' T* R3 m
[trade-record-all] of customer) > 3 )$ R X( F) O* X# A8 j" J
[- E7 f. L' Q+ L
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). ?0 Y0 d! V6 i- i3 a
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 V3 D9 ^* w9 B, _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ q/ h- j0 F" C]
K8 `; r' _2 T( I* o2 v% W8 @, r% V: H, {]9 V# Z9 h* Y' w6 V
set global-proportion note
. N! o1 P9 D, p' }( F]! U) _/ l# S; _% p/ \
end
3 {2 w' Z1 P( s8 J$ S! Y* g8 v% K/ n8 B2 P
to do-trade5 J+ f2 H8 ?( V t
;;这个过程实际上是给双方作出评价的过程
1 Q. ]0 L4 ~ D2 G8 W4 R f/ t: rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 ^& M7 c9 C5 \. c4 a6 F2 c cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 Q7 X) y( S4 O! l: s+ f/ R, s/ Zset trade-record-current lput(timer) trade-record-current
' A0 j/ O) n' h- D$ L% U;;评价时间
5 w* r2 V: T5 z- d: O+ uask myself [3 M! R) O& r9 d! x; h
update-local-reputation
2 ?8 O' X# S$ a; t1 i2 P I/ a) r! B$ ~% \set trade-record-current lput([local-reputation] of myself) trade-record-current
$ B# j9 v: t8 f]
! ]# Z4 \. j3 qset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* _$ l* w+ y3 s; p3 B+ ~+ k: M
;;将此次交易的记录加入到trade-record-one中7 q9 Y# ? |: r$ ` x
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# x: c( {9 V0 Q9 y. P1 N$ @5 flet note (item 2 trade-record-current )& a6 V# t0 h2 E7 v6 r; m) @
set trade-record-current! V- ^% Q* [4 c, t2 V% k0 x9 K7 n
(replace-item 2 trade-record-current (item 3 trade-record-current))! `7 S$ O1 h* E; d# x V
set trade-record-current! y+ g- A& C9 h$ s# Y
(replace-item 3 trade-record-current note), S) g4 Q7 Z* P8 m, h/ z
! M5 `% k: b' R5 W1 ^' |' P D9 B; @0 I& q' e# N0 e0 t( I
ask customer [
$ T" v3 Z# v' z1 C: W# _update-local-reputation
4 b$ M3 ^6 [, O( S0 F. } u9 jset trade-record-current3 J" Y7 c6 x- J: O% @( `7 }3 y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : S. N7 P& n1 N& H7 z7 `3 j( i
]
9 J. U- j8 T$ g9 }( o0 Z) \$ Y$ C% z, ~; }5 Y$ M5 h' V. ^7 C
5 s3 W) ]3 v( S2 T0 G- B$ @9 ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 q1 z% U) R0 H% r& U; c8 v# _3 ~7 o8 k: z* z! p; U4 M. o
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 f# i3 T9 H2 @5 x8 I8 v: F
;;将此次交易的记录加入到customer的trade-record-all中/ F, z, X" { G3 \/ C! W
end
' Z: H2 i9 L4 [. I- ^7 d% z7 b4 T6 Q3 s
to update-local-reputation
, [' y L" G1 H# ]- ^( Z& _7 z1 bset [trade-record-one-len] of myself length [trade-record-one] of myself
& g# A5 d" U1 r# i1 q% B
$ M E. z0 Y* @ [7 N5 b2 k
9 n. j3 @. N5 v+ D* k;;if [trade-record-one-len] of myself > 3
. L! u* l( R7 o: D7 z$ P4 D! gupdate-neighbor-total
% [: A) v6 R2 U6 P! ~;;更新邻居节点的数目,在此进行
$ x" \: f1 F$ {5 q$ H+ W# Plet i 3% Y( u+ h* V- ^4 e2 j* U3 M
let sum-time 0
" b o; z9 v- q) O3 S. i. ]- Cwhile[i < [trade-record-one-len] of myself]5 Q: y+ {" f2 Z# c* Z
[
_" u& u8 X$ [1 ^3 H5 nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& a! t1 d& a0 ?- H9 m# i5 T' I0 f( |
set i
5 Q7 J8 c( `6 l7 r( i + 1), A" {/ {) P4 U
]0 l& r' ] }0 N
let j 3; h' f& [& L( S
let sum-money 0- u0 ]' u0 k. B" |
while[j < [trade-record-one-len] of myself]2 j. x- N, d; s) C8 K% ^
[2 T& W! }% _2 q
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)- } k. W* [2 |
set j% c* r$ V* {2 B& }# s$ l, }
( j + 1)
2 I0 n7 y: k- X L]
, A# f$ b& Z& `, X/ J; ? _" n' r/ Xlet k 3, g I; `' S3 I1 G+ M6 x
let power 0" v. y3 D( W1 |) o3 q' b
let local 0
; q1 H4 @9 P. {# T hwhile [k <[trade-record-one-len] of myself]
. m( U5 j8 z; b- V, Q[# Q- _/ o! E: n9 C6 v& D9 C
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)
# C0 y* C- _2 ?# f; U7 I+ Fset k (k + 1)
4 B/ y/ N% ]; j]5 X, N2 n" c6 J5 [' e9 e5 C' P
set [local-reputation] of myself (local)
5 Q1 ^7 C& p* J- ?end
4 _ `) @/ F9 B# a" ^! X9 f' K+ i
to update-neighbor-total! u5 x1 Q5 r. z& J0 I
: v/ D: M R" O( _1 L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: ?0 \9 d2 A8 x. O. r) L8 `3 r' k4 E7 u
- Q% t0 A' \- G( lend2 J7 A4 {# R2 p9 G% ?
/ M2 O3 [) s3 n* _0 a$ R
to update-credibility-ijl ( }, u5 D. `& T- |7 t8 |) k
" B. q5 s! _5 D2 E) L. i;;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。$ u& K- A/ h/ v5 c8 {0 n J; ?
let l 0
, U+ w3 m+ o1 `/ [( d! H& E5 h* Dwhile[ l < people ]
$ N; f' t# c' A$ _;;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& i( }: I2 h/ A8 J/ Q
[
9 n; J, r1 q* b8 L2 Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 ^) Z6 X8 Y0 o+ t6 P' \6 N$ h
if (trade-record-one-j-l-len > 3)
6 C: a$ ~' q5 l4 j7 Z# d$ Y) i% n& j[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$ e* K7 X/ V. s8 a5 r2 c' ^
let i 3
$ o" W& X2 E$ z. u! }1 Qlet sum-time 06 D, p: v5 }5 Y3 f1 X
while[i < trade-record-one-len]* h' V9 P5 | w/ Z) ^1 l
[
1 L& r/ o; `9 C0 A- b2 q& h" cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% y7 C& L9 S$ K/ L
set i
% b* r/ |, z7 H2 ^9 \; @( i + 1)
$ H5 Y/ ` [8 e+ L& |]9 C4 d$ q. P+ s- L. V
let credibility-i-j-l 03 o: E0 Z; }" c& E
;;i评价(j对jl的评价)7 E/ G2 g+ |0 U
let j 3
( A* e: ~# r1 t) j1 K( Mlet k 4. p8 B6 I" L; [; A
while[j < trade-record-one-len]5 e# l, H% z- _0 k# [
[
: ?) J) n3 b' e5 nwhile [((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2 G* ~$ d; D$ r% [
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)5 A7 D1 {" Z7 E% w0 y _
set j9 }9 l# Y% d; _' v5 ?+ ~! E$ D
( j + 1): w6 }$ Q! ?- w8 h! C& Q, m
]
9 A0 c/ [8 [4 }5 s ~2 Nset [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 ))
9 I3 B D7 m" C9 v4 H5 r; A4 w. i! {
0 V) G; t% z7 b( Z% z7 ] b" k
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* T1 C# j9 ]' P- ?; t
;;及时更新i对l的评价质量的评价
w! C) S: {( f0 a" }' kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, A L0 x! F8 M0 y# \7 bset l (l + 1)
9 g/ T ^ a) {$ n]
6 c( r$ `( f6 n& `8 D+ ?' N# Rend
3 M& I, r" j0 ?: u! a) }6 b
4 _9 o( ~/ L2 e. { J, Fto update-credibility-list1 r: }) {7 k( d T
let i 0* N0 D5 y R# r: D: e$ h4 H
while[i < people]1 P$ C8 z2 D/ W
[
$ q5 r& |+ k8 M/ T0 X1 blet j 0, v/ S2 b. i# e
let note 06 x1 p% i7 A6 G. [+ B4 \
let k 0
" P4 F; K9 c& V5 y0 i% [# J;;计作出过评价的邻居节点的数目2 c/ L5 s9 x4 ]3 l4 s
while[j < people], G: z$ [6 k# R, i: _1 q
[
& V, z2 c% @+ x- {, Uif (item j( [credibility] of turtle (i + 1)) != -1)! g% P1 E1 l+ [* t0 {
;;判断是否给本turtle的评价质量做出过评价的节点
5 H ]) C/ h: p9 ^[set note (note + item j ([credibility]of turtle (i + 1)))
' F6 d" \ ~# S;;*(exp (-(people - 2)))/(people - 2))]
$ o; B% ?7 `6 W! L( K. Tset k (k + 1): T; o9 O+ ^% v) k2 q0 b
]; J4 X- W4 n } g
set j (j + 1)
' Q; Z- \9 w& W3 c& X, x1 e' I7 V]
5 g' |9 M H+ A4 \" ?set note (note *(exp (- (1 / k)))/ k)4 I) y ^" p( p' q9 E6 W
set credibility-list (replace-item i credibility-list note)4 N* K! Q8 y- q x! [
set i (i + 1)
: w; s6 W) f4 C0 H4 d- q6 k9 @$ y]: v3 o m0 m+ s3 w) T/ e# @
end
/ U, m2 n& t/ N( o' y1 s! i: n- P$ }; u; L2 }& A# P. e; q
to update-global-reputation-list
( n; N% e( A1 Z& E% ^( Alet j 0; c4 R5 j; T O. X. a
while[j < people]: c& p0 X' v5 a) k6 \
[
2 Q2 |3 ]/ z( G% P3 wlet new 0
2 H9 V5 i4 U4 |( d;;暂存新的一个全局声誉
/ l3 I3 s V) c0 b6 ^9 Z( `( O7 y. Zlet i 0; Q( J: v2 \' `& f$ }
let sum-money 0* @) M. q( |5 V4 d* k8 x
let credibility-money 0
/ a' R, W- S. i% N- V+ f- dwhile [i < people]
P# m6 _9 W% E: }% A[
' e0 m8 v) M2 ?/ p n7 [6 Qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 i C% R! \% Jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; } e& S6 ^" [3 m* y3 e* k0 Bset i (i + 1); c% |: F, N7 l1 C
]
q( B- d" D. `1 U) Xlet k 0* J* x! V9 n7 C) N' ^* Q! Y+ Y3 B
let new1 02 x6 F# M4 K* |7 v" l# Q4 D: @
while [k < people]9 {, s: @0 y- `; S/ F0 b
[' L, t7 }9 F: I% j
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)
4 J4 t+ V! z. o8 K) ?0 G+ q' p! nset k (k + 1)
! {, e' i2 I7 h, `2 K/ B]( `+ _' D ?% A: N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 U6 z% y! k7 z1 D6 r- i' ?, W
set global-reputation-list (replace-item j global-reputation-list new)
7 c1 v) A r( [1 O% N ` bset j (j + 1)( @0 b* w A# ]1 {& N* C
]- l9 j7 D' A0 T1 C2 J. c9 ]
end
( N* ^8 S. {2 p2 Z4 z; [
! K) ]3 _" Y( ] R9 e
# Q# l1 @5 s# o% A, |+ I- \7 L+ e9 y. g6 w3 C
to get-color
' `" u) B, U) A5 y: V% y8 P, k9 T X/ q
set color blue
8 [ a1 P4 S; W: X; [end3 d8 m- `7 h5 S- n; K8 ~
( Y, U& H6 N8 f3 V. w$ |to poll-class5 U4 M3 O) d( W4 ^0 p1 ~9 z5 z
end
5 M7 d1 n6 y- _* i1 P/ |' i+ \6 V$ }8 W9 N
to setup-plot1
# v" f4 q; e" A3 V8 u, H
; l- u; D. G0 w/ D" ^set-current-plot "Trends-of-Local-reputation" _$ F8 |. S1 V' t S
5 b6 A" B/ b- V" j. D6 @* I8 D
set-plot-x-range 0 xmax4 L7 p1 ~* }' B) _/ j2 |; D' D3 R5 [
* Y+ i* G8 K }$ `* C+ M; k+ D
set-plot-y-range 0.0 ymax
+ b! q2 J9 s! d. \end
3 B# ~! o8 F# H# D p6 Y% P6 ~! ]- W7 N
to setup-plot25 k) s5 t( l Y
- y* K( q4 f* H9 R! V
set-current-plot "Trends-of-global-reputation"
) q( b- h, N5 B/ p$ L7 w. W }
1 w: O' ^8 H2 W$ P2 Xset-plot-x-range 0 xmax
; e5 |- |$ U7 Z* j }& ]6 Z; x* r$ L4 Z+ }& ^
set-plot-y-range 0.0 ymax
1 b3 _" E V" f. tend
C: R1 N. G. k" f$ G% Q: A. I0 w1 P+ ~9 @* e j2 i; h
to setup-plot3
% p2 b: d% `6 Z# c( W* U
7 B+ _! V- t Q4 \! N: d) ?set-current-plot "Trends-of-credibility"
6 Y8 ^2 V6 K( A* d0 u- s' Z7 b- ] l- n+ E% D! z
set-plot-x-range 0 xmax- W1 z& J2 ^8 r) |, d- n
5 [* N5 A5 ]1 ?; V: M
set-plot-y-range 0.0 ymax
5 M" i2 w5 b5 F0 V) B9 ?' l( Wend
/ T: \5 W4 B( _, g/ s* I8 D" m( W' O* x3 ?; H: x7 p& `
to do-plots
4 N) m$ _; h" U0 `+ A- E' Yset-current-plot "Trends-of-Local-reputation"3 f) ]) {3 x; Y/ } v. O) S& J
set-current-plot-pen "Honest service"
; T/ E3 D* K" [5 _7 I- s' o* }end+ v3 N" w# \+ d0 |9 ~
7 e; D3 D4 N4 E5 ?[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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