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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
- x" X& v- Q& eglobals[
5 e# g* `( C) l5 I/ Wxmax
, c* y8 y$ H% [$ H9 F; n, d9 zymax
. C. t; I X# ^% R# a! A. A, T5 P) f, Sglobal-reputation-list
* y, B* ?$ i: o" S6 q5 K5 x' M7 ^- _7 B
;;每一个turtle的全局声誉都存在此LIST中
! p( ]0 p" ^& J# h2 {credibility-list, v: ]4 E9 o2 l' s9 T# M+ {! ?. \- A
;;每一个turtle的评价可信度9 U+ L/ d& x2 G/ ^6 X
honest-service
% [' W8 N' W. Z. \4 junhonest-service% m8 [; {, o1 ]' z1 r2 d" B
oscillation% Q- B9 P. I+ N. N) |; x5 S
rand-dynamic7 o9 ?! v1 g6 T. B& ?, l- J
], D3 c$ {) \+ _; ~: _
2 l( C6 c# \3 l) j& x s! V
turtles-own[9 M5 i/ Q+ V' j+ A' r: V d( k6 p
trade-record-all
; K: M) n1 e% g I# }3 x- H;;a list of lists,由trade-record-one组成& C/ l' [2 \: Q: r1 U' [. n
trade-record-one" G# B7 A% M$ I. k, g, {
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; ^4 O7 [& ~6 O7 V/ N7 d' ]
l: A4 \. H1 o3 Y7 G: l;;[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]]7 O; e# z {! \0 k
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]
* H0 P9 y) l2 X, o/ mcredibility-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list5 I0 ^) z# c4 m8 t
neighbor-total; `+ i" i" m. B4 F( t
;;记录该turtle的邻居节点的数目
9 z C5 i, C: G2 Rtrade-time# \8 J8 a: k* D$ Y
;;当前发生交易的turtle的交易时间9 u* e" D& \+ F, D. P) R# Z
appraise-give
# m ]! }6 U, R; S& R- U;;当前发生交易时给出的评价
' ]) \4 n, f1 j3 wappraise-receive
2 Z% j: v9 ], P, H;;当前发生交易时收到的评价
4 {8 D- f3 K( y& o u% _: ~0 p4 j% n* C/ fappraise-time
% A) s) v( a$ ^9 U3 };;当前发生交易时的评价时间
4 I5 R8 H; L/ n4 U u! j: clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 I( E0 B; }; b7 H! F: J- l& W3 ` @trade-times-total6 `7 F+ @* R7 d- n+ J$ L
;;与当前turtle的交易总次数* x# f3 M- L& F4 P. f/ w
trade-money-total4 E$ V+ O7 I- q# {+ d& L& ]
;;与当前turtle的交易总金额% f( X3 a! t- Z8 A: n" ]3 l
local-reputation" z |$ C# n6 r: P) [
global-reputation
" E' L% G6 c. u! rcredibility
! y. K) N& R7 T# E3 G+ _;;评价可信度,每次交易后都需要更新
, S6 O8 R7 F4 Z; x( |$ o" [: Kcredibility-all; b" [# x0 M6 l; c: t; j
;;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
3 l5 j" o& Q9 `" l: U& |" W: U+ X+ r2 H. \" f
;;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
0 k$ r& c- ?# ^credibility-one
0 P- [3 `2 y4 D* j6 [* o;;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
2 o) y+ ]( Z; Lglobal-proportion
5 z) {( M) g3 P4 J2 d! k8 Z: `! bcustomer- B- p, ~' `5 X' l5 R
customer-no
1 H1 D8 |. y% R& n8 Utrust-ok9 _! f1 w- O7 I" q
trade-record-one-len;;trade-record-one的长度0 W" X+ I, t6 f- F1 }5 b
]5 L3 g" f2 M0 b( @; i
- y2 r" l4 v7 P$ Z1 n
;;setup procedure( ]7 `, b* I( U" `% m s
# K" o6 V- _* ~9 H
to setup
# Z- i' K, f* ^# Z+ ^# V" d' x
l; |' W5 O4 v1 d- gca
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initialize-settings
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crt people [setup-turtles]
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/ I1 k! c) R' p" L* v5 Jreset-timer
7 ^! n" U8 \% R' y" s2 V# b; E4 V5 r8 x5 B% J
poll-class9 l( S, Y2 P: `5 r7 o6 V- j
3 w+ p6 R X* ]& g' z+ @0 e2 p& ~8 dsetup-plots% s% \' k; k9 d7 s( Y! L
; e* \4 u1 y9 q5 h; ]$ O
do-plots, L+ {9 _9 |' {( W3 V) y# v. x
end
# B7 t9 Y% W. ]- y9 t" _8 k4 _' c' c" h2 J6 u3 k. X# g
to initialize-settings
3 E: L8 ~5 ]. @) G1 d" v
/ d% r; ~" d0 p! x2 K6 dset global-reputation-list []
) {1 A: ]- ]: I" n' A3 U9 O7 s$ M1 A' E$ z9 E9 \- Y* m
set credibility-list n-values people [0.5]9 _+ F- I1 U t+ L. \( O6 O& f0 M% r
1 U4 K# j, w; X# V6 n7 U/ v
set honest-service 0' h6 ?0 u$ s, Y1 m
1 q6 s+ _8 z/ ~/ U6 r
set unhonest-service 00 x- Q- d* Z Z& F' h( c
! M! y: }9 h0 p5 v9 X9 C+ Sset oscillation 0* L: C6 M3 B( u4 J; o9 J: p9 p
$ z" f6 {' w+ e) o
set rand-dynamic 0
8 e% n: c2 q; Mend% t. `, s! f$ W7 o- q: T F$ d
8 i* M3 t- Q* e, dto setup-turtles
$ W8 ^1 v( I) @. v. O0 b) `set shape "person"
! B+ i2 _4 u& [: p2 y! B' @setxy random-xcor random-ycor9 f$ v: i! A. l$ y, ^; V
set trade-record-one []: _0 y) O# i# M1 y+ j6 S
3 m% M ~1 b4 E3 `. C
set trade-record-all n-values people [(list (? + 1) 0 0)] ; E1 v6 K5 A/ i% T" ]9 Q+ J
3 r o2 [, g4 a n. X
set trade-record-current []7 P4 C* R5 I3 I7 j5 Z$ ^
set credibility-receive []
! S" B: ~* w/ x& J0 \- m, K. Rset local-reputation 0.50 p4 ], M4 ` W7 i
set neighbor-total 0* W- Q0 r/ o" e$ H% A, n
set trade-times-total 02 [" L2 L& @2 p* U q# l
set trade-money-total 08 W# H. [/ W* y% S
set customer nobody- T& Z" Z) M1 p4 |
set credibility-all n-values people [creat-credibility]
( ?3 w. p" D- D+ W$ a& K5 L+ @4 N8 S$ }set credibility n-values people [-1]
" G% N% W/ X9 e% }: uget-color8 O/ J3 s2 b8 Z6 @
6 W% D1 w$ G. J/ zend' z H3 j- {: N1 a: X& {
& Z- x7 |% `! s9 T: e" Q
to-report creat-credibility! ?0 V6 H1 r& J2 q9 J
report n-values people [0.5]+ m9 Q9 F! p! o$ K6 {
end
& i r8 _/ w" w5 U, ?" C2 n; }
7 R" R! F8 P! F. j" ~' vto setup-plots
% o3 \; _8 O( d" n
7 f0 f4 o, |+ ~set xmax 30
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set ymax 1.0: u0 B) f8 H! Z& n1 q4 \- c
2 d; \* P: m+ W& ~8 n) d3 g
clear-all-plots
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setup-plot1
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setup-plot2
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setup-plot3: L3 @/ j6 p ^, i. c4 ^( b( D9 x7 x
end1 e* F; S- ^; Q* [% z$ x
8 M8 [! T' `2 H! O2 F
;;run time procedures
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to go
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ask turtles [do-business]
; Q( y3 o% v( K- r Y" Aend
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to do-business 5 \) g0 U5 J' h5 I4 I5 |8 r3 I
4 L3 V. h( E5 w0 D" l
! _; V: f+ ]3 v8 h* k b" _rt random 360
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; D% I0 V# _6 s8 ?1 x+ A5 F1 E1 t1 Gfd 1
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ifelse(other turtles-here != nobody)[
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- T l) D1 Y! ~) w9 G9 wset customer one-of other turtles-here* A! a; `9 t! B* H, b
9 I |" E9 ]1 ]: e;; set [customer] of customer myself5 \$ D/ H5 a! O& r2 Z
Y) l6 W8 ?/ H% U3 h4 D* j
set [trade-record-one] of self item (([who] of customer) - 1)
( d q5 d0 t( K1 B6 }9 I0 X[trade-record-all]of self
: `+ d9 m0 w; { u0 ?( x( u2 ^;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ c1 |1 a @; {' q7 ^9 Z8 v
: \3 M0 t( `3 c- f
set [trade-record-one] of customer item (([who] of self) - 1)8 I4 u( u9 l' K% p0 r k
[trade-record-all]of customer
1 E% h; k3 F# ~; ~3 X5 B5 L% ~+ D- G+ ?% y; M
set [trade-record-one-len] of self length [trade-record-one] of self3 ?2 J5 D! o' r
6 k- S0 h" e9 R
set trade-record-current( list (timer) (random money-upper-limit))$ q- C& B, c7 x% u4 b/ f/ ~: O
; M) {* I8 e% a' ]7 o* ^, j% |$ zask self [do-trust]( X+ b/ u( o, T8 W
;;先求i对j的信任度" V* i; D1 L9 i6 r9 s
4 h ]4 C( y. X% S% m6 n1 ~/ D
if ([trust-ok] of self)9 T9 g, e5 ?2 S2 @
;;根据i对j的信任度来决定是否与j进行交易[: ~& X- b7 i/ [, g3 q4 T3 _7 n
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
/ o. P8 m2 k/ _% h5 @1 I/ O! R, k L( @/ [( ]8 \1 C
do-trade
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. j9 a% n9 j) j5 oupdate-credibility-ijl% u u1 Y/ s, k |, E$ W
* E, G6 c" ^2 k1 i2 vupdate-credibility-list6 u" q' }$ ~9 B3 z" P' L4 Z
: [! U5 f9 }# \' C
' Q3 I% o5 n6 A' n Tupdate-global-reputation-list e) e; b. P+ r5 V6 a
2 v" o% v, L5 k
poll-class" W0 H/ n) p6 b7 s) e
. R6 g) o# e L' Q7 l
get-color
1 l7 Y; p% y* Z3 N( \ K5 \/ z' C x X
]]6 T ?/ L3 M+ B2 C
* N- \/ X2 j& z0 u1 k4 c;;如果所得的信任度满足条件,则进行交易, ~$ T1 X8 J" @, W+ K
- F9 R% V6 B$ F, H- B; i
[) }6 A9 F6 z8 k* {6 B# H
$ L# R; j8 n3 P' T) Srt random 3605 I& S/ m' ?8 t4 N1 j) l
! ^# v/ M1 [0 C) h( R3 Q# L
fd 1
% m% L; s; |% }# o! I M
0 q# o h+ f* T5 z4 P]
X4 o' l% F$ D* | t2 U5 O% }, F2 ]7 X
end
# J) F# V/ `1 n) c1 m
# s$ \+ K5 C, A; R9 r7 {" g3 b+ Sto do-trust # x t8 S% ]% w# m
set trust-ok False" \+ m! r3 f9 U' e) L/ P
2 `& [7 _+ O5 o! Z G& s
a: c9 L" ]5 p, k7 {let max-trade-times 0
- F/ r2 R% X4 ~! |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ M( S/ Z) q( c& q$ A7 ilet max-trade-money 04 b8 M0 q; o5 n, c
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 ^2 I, P2 ?2 A1 U* alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( M0 Y6 }% C, h
! A4 A) H9 I% s3 n% g3 a; V
* [5 q1 n7 }7 Z1 i) Fget-global-proportion
0 J* w8 F. U! S/ Slet trust-value
) m+ ]9 k4 V7 O! M2 V2 b. ~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)4 L0 F6 e" F, [ r: P
if(trust-value > trade-trust-value)
( H7 y! r! K6 Z. Q3 `[set trust-ok true]
7 g$ m+ c$ P, K bend9 D8 i5 H7 z' w. K
- R$ B9 [2 O, p
to get-global-proportion
. A( D& |9 Z ]5 W, G2 W0 Yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 Z7 P! Q2 I7 W K# A
[set global-proportion 0]
! L7 q; N6 i& N[let i 0; G% {) `6 d! U
let sum-money 0
( e' g$ r( z+ z, z4 V K; ~while[ i < people]4 e. T/ d4 R2 `' a! }0 ]
[
+ x8 v! S& D1 N6 `- V; T/ u9 Kif( length (item i L6 j l; ~. u0 K9 ?* p
[trade-record-all] of customer) > 3 )
* O0 E6 {. n4 K$ |$ y1 k[- R: Q2 t; V9 v% i$ F9 n3 m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& J5 ^" R @5 Q5 p]8 X9 ?$ R0 `, \' j% M
]
! s* J# | o3 \" {+ G& ~let j 0
( R; p+ ^( g5 g) v: }6 m0 vlet note 0
6 H7 J: u- F* e3 iwhile[ j < people]& i( c+ U4 j2 @$ u% G1 z
[4 k+ k+ F: b, u1 t3 Y& G1 q4 z
if( length (item i
! v2 L- e; A/ E2 C! V. v[trade-record-all] of customer) > 3 )
) B% R2 _2 h, s3 k[
$ \, S5 S& [1 S4 j& _+ g1 t+ |) `3 H) ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' K6 ?4 m+ X* s5 h1 Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 W3 G, R g+ J, K, d7 i% {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 P* z3 t( A4 Y]
# D, ?9 x+ ~4 k0 ~6 m% r2 A* s]$ m7 B7 \2 \% Q4 K8 O( i. C
set global-proportion note
: X' ]% |0 ]2 j& ?9 q8 q1 n7 O5 n]
' w) t7 c8 n1 z0 A: D1 @end4 j9 G& _, p* v& V) v) X
+ j( {; d: l; |) e& _; i" Kto do-trade3 w7 Y6 [: O5 p5 q) Q
;;这个过程实际上是给双方作出评价的过程4 J3 j% H X: V9 [9 c+ N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 i$ ~, T( I0 \* Q: a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* B% t2 J& X+ sset trade-record-current lput(timer) trade-record-current {# H: u1 g3 M3 S f& Y
;;评价时间
: @. ~* S( G' g5 k; `6 W6 yask myself [2 m7 ?6 `; ]" [! D% C1 j: A# {
update-local-reputation: s# i+ N. R6 F" J5 G" m
set trade-record-current lput([local-reputation] of myself) trade-record-current
$ g& y, R W4 s1 c- j& A4 U]
9 D. ^3 D A6 k* U" wset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ D* X! K* a$ e8 H, O* ~# A;;将此次交易的记录加入到trade-record-one中5 Z# B; i& x1 T- R5 F+ b3 y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! l5 d5 }4 q. ?/ Y2 F" h% ^let note (item 2 trade-record-current )
4 X6 s8 }8 `- n1 V% Kset trade-record-current M3 Z2 `. E9 Y' v# v6 @
(replace-item 2 trade-record-current (item 3 trade-record-current))% K, x# y' [: s: ~% V: I( e( Q
set trade-record-current
6 z H& |# h; @(replace-item 3 trade-record-current note)
+ e5 g0 e5 J* ~) q: ~
: l$ f/ M. l7 }7 z7 [3 T5 \; H
% b l% F. w: c5 kask customer [0 U/ k3 Y. s, W( Z! S; C$ h/ o; I
update-local-reputation
- q% z! s8 W5 K! B- c7 Xset trade-record-current
9 V% R2 K/ z& V% T, \5 ?) D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 n9 j: ^; L! A( X
]
- z# s2 C1 q( b" Q5 j/ P0 f# j3 t2 ~+ |: M( x7 G1 P
2 e6 ?9 b7 {7 \7 x/ Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 g: Q$ }" i) k4 {4 W G |: X1 W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! d# W8 O5 p4 f8 c& k;;将此次交易的记录加入到customer的trade-record-all中4 K4 R$ Q6 C2 N4 q% K$ ~
end9 ~# \( F$ c# v% i) F
' l3 s; e9 B0 L) J* \# V
to update-local-reputation
' r7 \; `: E; L: \set [trade-record-one-len] of myself length [trade-record-one] of myself+ A4 N) I5 L; x1 a* @5 h& l( y
6 l. x4 p" Q1 ~7 u* r- }& l0 {# E
; l5 _/ G$ R2 z; h& `( M" d
;;if [trade-record-one-len] of myself > 3
1 [5 M- l$ L- V( I' r3 jupdate-neighbor-total
* T0 R$ T( I# @% ?;;更新邻居节点的数目,在此进行% v) m1 |) E! E7 J
let i 3* p; {2 r% {0 k5 N+ r9 J
let sum-time 0( f, Q$ v7 e( ?6 c! V* e' `
while[i < [trade-record-one-len] of myself]
( d. U/ d3 r) l v) Y0 f' K: {[. {0 B& k2 [' ^$ {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- W1 y" ]4 F" X5 M8 zset i4 Q1 q+ h" ~' i2 Q
( i + 1)
6 z3 I: F. o; d2 h]
3 H) ?7 @ o& f+ ?% i. j% @let j 3
" ]5 Q5 m4 K) H% L% F5 flet sum-money 0
( P9 e- u% K3 u. `while[j < [trade-record-one-len] of myself]; m: K- O1 `$ Z8 I: Y9 D, D
[6 P: B# V8 G3 `* ?0 v
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)% \1 @' O# ^$ [- K" ?7 ^
set j
[& E5 |! @* m) c* a m( j + 1)9 Q- u4 E; G5 Z# T( l+ }. Z: ?5 p
]
% g" j- u& G! d; w: s! R k' olet k 35 a w% S- @" P2 w$ x# _
let power 0' B. ]; l3 M% U; e B7 K7 r
let local 0
1 R1 C5 X1 R5 x) L- Kwhile [k <[trade-record-one-len] of myself]
9 |7 R1 S1 p# O k+ G# a[
, P t/ V! l; v4 }1 R3 r7 Hset 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 B5 b+ I: \# a! p+ R9 N
set k (k + 1)
) b. m9 ^5 e6 I]
7 O% O3 J, @" P( f- d' Cset [local-reputation] of myself (local)
# I) q$ @) u6 G# `( h! Pend
7 b2 e) F* x& o6 n* C5 B
7 `: ?2 F; E& \" D$ [to update-neighbor-total
' V, G: C1 o$ m0 Z$ r% u4 z4 j4 h3 {! M# U! S
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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; |$ ?% s5 e& rend3 A/ ?/ V2 i- X
0 x+ }3 h, ~8 J4 _# M, J; tto update-credibility-ijl
+ J5 N% `; J# N2 q
/ w0 E6 \1 U/ s8 R5 e j6 { v) l3 s8 q;;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。
6 `9 A8 D& q7 T, glet l 06 C; U+ V- X1 W/ H
while[ l < people ] w2 r, }2 ~) _
;;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0 m- C" X+ ~4 e
[
* o* x8 u- y/ Q# b* [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" G' S7 U1 J/ u3 eif (trade-record-one-j-l-len > 3)
2 C7 K- Q. x" z7 o[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-one7 ?! {/ w0 R1 u2 l2 {6 i N
let i 3, r; l9 K& o: \- U
let sum-time 0( Q* K0 p+ A- C1 q% o
while[i < trade-record-one-len]
$ Y# o& q* p6 ]+ H" I5 u[ g ?% ^' G9 R9 Z& x2 O
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 t8 F3 m- z# T0 r4 R: n: H- R& F
set i( L$ o" W) r( ~( X+ k8 _' y
( i + 1)' @' x6 y$ v7 e# ?, g0 z
]! w8 ^( S F$ t+ A: T
let credibility-i-j-l 0
" a1 r/ B- b6 O6 y$ H8 B) u;;i评价(j对jl的评价)
0 P* k$ b- `6 v9 Clet j 3
W9 h6 ^9 d0 xlet k 4
0 w# _& y' @) c& @9 J" U. wwhile[j < trade-record-one-len]# Y# S5 }- R0 {0 I: ^! L
[( \1 V: U6 a+ q" L" N1 i+ t
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
7 C* k. z4 O. U( g @4 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)
. c1 Z$ h3 s+ z0 X. g6 m/ lset j5 O5 b7 Y* W D
( j + 1)
L2 H; l; j6 m. K+ {4 D6 ]+ s& Z1 t]
+ J% @) l( s3 ` d0 W+ u; `8 vset [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 ))# v1 n% s3 u7 o( Q% R$ b7 S
7 G# f. w n! x) r
( r! _/ M! a# n6 W5 ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# M T/ z) D/ d$ o6 B% x7 d;;及时更新i对l的评价质量的评价
" i6 Q; ~" R) }2 @set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 _: Z$ d3 l. d& n2 T0 ?% O# e
set l (l + 1)1 V( \( c: m# L, r' A1 w
]
6 e9 E7 L0 s$ F$ Z" y! J' `3 Y, xend
" Z4 m0 ?/ O: f7 a% Z
& O4 m+ D( ^- {# p) c \! @to update-credibility-list# `, e+ I( ^# I9 G! K) s
let i 0
3 E3 a. s) D' e ^$ Lwhile[i < people]
6 }5 T8 w5 L" X" ^[
6 ~" k/ m, t5 u9 |& b8 Wlet j 0. e! ?; ]( m) k D
let note 0
! ~2 m9 U5 {) ?5 D4 Ylet k 0
# @( g* Z) l) x7 ^;;计作出过评价的邻居节点的数目
3 t* n. ~. }, r* E- U; Qwhile[j < people]
4 f) p/ k3 v; I% U" j5 C7 }[
~8 ^1 B4 e: D, w1 z uif (item j( [credibility] of turtle (i + 1)) != -1)
9 K8 P2 A5 \( q% i7 X4 i;;判断是否给本turtle的评价质量做出过评价的节点- M3 G" `( i" q( K' N
[set note (note + item j ([credibility]of turtle (i + 1)))
R. Z) h- M1 R. p4 q+ E;;*(exp (-(people - 2)))/(people - 2))]
& t& r2 h- S4 R4 i( z+ V/ Uset k (k + 1)
7 l# T2 Q# P. T- o: n* s, Z' k! o]
5 Y6 U* E/ x+ G. E3 g2 fset j (j + 1)
m" X3 y5 M3 |]
: M- a2 G# j, \4 {set note (note *(exp (- (1 / k)))/ k)
* V/ e$ t& o) \set credibility-list (replace-item i credibility-list note)' l( F5 j: s% R0 s) ~6 {3 s& @- _
set i (i + 1)
6 S+ ^% ^' R9 A' s6 W$ l% A& v& q]' k/ v& ]- f6 `& }# K/ f" ]; \" t6 y5 x- c
end/ a5 t& l2 Y9 }' f) I; y
1 T7 X/ m- l0 X3 a* ?6 S. s3 nto update-global-reputation-list
; f H C. \3 y; ~2 |8 R% ]let j 0
% `; C% q2 w \+ nwhile[j < people] j% m! u9 }" r0 j2 R* K
[
7 Y. @+ ~9 T! }) \6 L- llet new 0( m: z) A; O6 |4 u
;;暂存新的一个全局声誉
5 ~' |( f, c; {( j) K# O3 W' X1 Flet i 0# _$ V+ c! B7 S5 V2 }
let sum-money 0& _5 \- `" t" y1 M
let credibility-money 0% [. E$ Y6 r2 Y2 t/ }( J( m
while [i < people]
' K0 S& a4 l: m' n, H[6 M8 _- W7 U( D" I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ Q8 K; ?" Q1 ?# f) c& e$ Qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
d( A4 x) p' W7 [1 I' E, P( P/ \set i (i + 1); g# D* ?3 Y$ t& A1 ~
]
& {! B- C% g8 j mlet k 0
+ m5 h/ t2 V. o* Glet new1 0
3 N @" L& h+ jwhile [k < people]
: m: i% i, x& M3 E9 j- J- u5 d) o0 A1 U r[
1 z+ H; s# Q' T6 _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)- J7 X1 u* B% w5 Y h( `& V
set k (k + 1)
6 i* Z+ X$ c2 O1 X0 `# x d' Y+ c]
- x, K- ^$ [( ] V! Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 i* W" I9 U5 H% O" h: R0 m1 D) [2 v7 hset global-reputation-list (replace-item j global-reputation-list new)+ Z" o: R" z. K* ?' v, i* F
set j (j + 1)
m1 h1 v% v5 E& ]4 O3 q1 n]
7 t+ x+ \# h n. l N5 B+ N2 W; S5 ~end
5 }6 ^' ^5 G6 N1 x1 W E4 f0 [1 {- L" W7 d$ j
/ f* j6 {# V" K5 x% O0 [" k
& Q5 |* f4 `* q/ dto get-color
$ S. j8 b% q J9 ^) `4 Z8 u3 U! w3 N0 h! M3 z( ]: v
set color blue
+ R# R# }. u6 w# J+ [+ I9 B5 kend
( _0 M* J7 c6 k y) C
! w3 \% Q8 V! U/ kto poll-class6 U1 T% `. \- u% e* r& d+ g# ~
end k+ X9 A0 _& C1 c
; X7 m7 |; m) D. n* xto setup-plot19 v7 @3 |$ S7 a) A$ K
: C1 A" o" B1 i) @" I) Z+ c
set-current-plot "Trends-of-Local-reputation"& |' F: j- B0 j' U6 _1 W$ Z
! A+ x8 d) T) E' g! g9 Sset-plot-x-range 0 xmax" t' O8 x8 _) K! q$ u$ ^" G
& K; O! Q% e8 G. Y$ M- w& uset-plot-y-range 0.0 ymax+ ~) j" T3 L |: f; h. ^
end, A. S! w6 Z$ v7 E
2 p! q1 ^/ y. Y/ u6 R, C
to setup-plot24 f9 {/ m, ~ ^" d& X
, q1 D) L$ i! \$ r
set-current-plot "Trends-of-global-reputation"4 I0 w! C+ V3 ^$ b8 n1 e5 B' b( d0 p6 z
v% r4 J. |9 v2 Y- |; k' i( b2 r2 ^
set-plot-x-range 0 xmax7 \# D( d2 N1 L$ [1 u
: Q* \& X, j( c; W) nset-plot-y-range 0.0 ymax- t; o% V9 y* D0 A. q3 W) F
end
6 J" R4 c" p0 Q. I; K4 T1 `3 u3 z' @, a! S+ D( k+ Z# z. ?
to setup-plot3
: @; W/ F* h M! e% N& M9 f
6 A }; T" M' l2 O8 rset-current-plot "Trends-of-credibility"! I+ b: @# K$ Y$ p9 i
/ z) B! f3 `& }' d4 W
set-plot-x-range 0 xmax9 R4 s% ?3 L4 j3 Y$ {" m# N
1 c. R" x+ o# }; gset-plot-y-range 0.0 ymax
* t* b; u& q4 M( j, x- l) Hend
8 y( A5 e, z3 H6 D+ Q* {( e k9 }3 j" o, I( o
to do-plots
; f5 x( I& S% Z. q' |set-current-plot "Trends-of-Local-reputation"
- }5 t2 }. ~/ [" T! P1 _set-current-plot-pen "Honest service". f1 g$ \$ `( M; A4 [
end6 Z; h5 [ g+ k& y4 l! t7 \
3 x% l R6 g c' D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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