|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
f( q5 X! F2 tglobals[
4 i" D1 M: r6 b' Y' @9 L) B1 }: Vxmax
) D9 R! p0 t, Yymax. D9 n& A# h( U5 v7 }. W
global-reputation-list5 D* m3 o d& O6 \, L8 t. y
! S0 K. ?+ i' c2 D7 ]
;;每一个turtle的全局声誉都存在此LIST中) y8 _% ]" i. U8 c
credibility-list a7 p; d- R1 I/ Z# a
;;每一个turtle的评价可信度
/ o4 N# J3 O: J2 P; `; x1 Z8 l$ thonest-service6 B7 e: y+ F& U; N# g
unhonest-service" [1 U; E5 r5 @8 r# R
oscillation
1 G# A% f9 G( e2 ] a; arand-dynamic
. u, A. R- R8 L9 Y4 `]. ]6 w% A2 a* v3 g- Z$ C/ F. b5 Y
9 {$ u0 f0 p) r1 r) y- zturtles-own[
# j0 ?; E4 p$ c+ S9 ~trade-record-all6 `8 v* H% O( H6 T
;;a list of lists,由trade-record-one组成 S* S |, R" I5 w i# y* q4 D
trade-record-one" ^3 B( D. O8 ~ B: }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 l7 L; m: `$ \5 l
& A) Y" j! i6 r8 j# {+ D
;;[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]]- ]" `: _3 l' ]# i# ^8 Z/ Z
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]
0 Z. [- U1 y* e: Q% }+ dcredibility-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
5 H$ d. [! y5 V9 P0 T* jneighbor-total
2 h! B& I7 E# U1 ]# q! v9 X, O+ J5 ];;记录该turtle的邻居节点的数目
7 ^7 R) K( [5 n( s: P9 wtrade-time
$ [1 D3 z9 o7 U9 H) ~. a;;当前发生交易的turtle的交易时间
5 y) G: m1 M7 I4 ]appraise-give& k, R8 G; W: L4 T" C
;;当前发生交易时给出的评价
" @7 A4 B& Z1 ?. w0 S, V# E! sappraise-receive
0 p- {4 Q4 P0 J5 h;;当前发生交易时收到的评价8 @& u3 a6 R: m) V$ H
appraise-time
2 @6 p$ r# X8 i;;当前发生交易时的评价时间
* r" r# s) O0 w3 ]3 Wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 m) u. t$ Q Z+ C! A
trade-times-total
% T: H( w+ H; f% @* w6 {$ h;;与当前turtle的交易总次数
" y" w2 Q7 \! }3 i, Atrade-money-total
' K1 `* A, {, p8 j;;与当前turtle的交易总金额/ I6 A( F5 p% a* _0 ]1 L
local-reputation! Q( G" S* B; Q8 X3 d' `7 o8 L+ i
global-reputation7 v/ o) e. G) u0 m
credibility
* J) j1 ~+ e1 c. P;;评价可信度,每次交易后都需要更新
/ z& T6 R+ q. o# e# u8 Jcredibility-all
9 [8 R8 c, D6 s, Q, m) G;;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! e) ~! P& \2 d
7 T% m( S% f$ M5 W, 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
! E& ]9 _* l* o ^# o! Ucredibility-one
' C: T& R- K& {;;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 H7 R, O$ U% B2 c2 mglobal-proportion
y3 R, H' i& V' f9 Wcustomer* J( q: A5 u L0 U
customer-no/ y% X( S4 J) ]. o* V) M+ e E& t
trust-ok
. m: @6 y! f* }8 x1 J7 Dtrade-record-one-len;;trade-record-one的长度; B% T% i, c- z6 m
]* w$ M$ W- I5 G7 d/ p
8 S5 G9 t% H: z& r;;setup procedure
6 ?; | \; s4 ^6 V4 O, L6 `9 H3 {& B G4 g- q1 n5 }' O2 A2 a% b; \
to setup
+ [; u- Q$ t2 O$ ~* J2 ~, V. H" u- ?! L: a
ca% t, P0 i7 c; u8 j& ?8 d( Y
" D* q3 k4 f5 o( V" }2 r$ ^initialize-settings. I" V3 a" S' R6 z# `) z
6 d/ t( l/ i1 [ \! {
crt people [setup-turtles]* r: W8 F8 d" ^" ^2 v+ O1 \: N
) V G5 | g, X5 u% B
reset-timer
# ^) m2 [. i6 C. u9 U8 l/ q& f8 a; Y# l9 G5 Y e1 r1 S
poll-class
" Z( u/ V5 z" S7 B! U ]: S$ w; [5 x$ A8 V& T. J. ^5 X# V
setup-plots
$ E T5 W7 R5 r) f6 W5 s4 p& j$ J' C; k
do-plots
7 N6 M1 R& Z5 |end; O' Z8 b0 X2 Y+ `2 y
0 H5 d+ Y ]4 M1 y. Ato initialize-settings: R# z6 _# ~5 ?0 U! L X
2 {2 L% k" [: R2 p0 b9 v
set global-reputation-list []0 F* p0 O1 f# ^$ o1 E1 O
% \- W( k2 }7 d4 cset credibility-list n-values people [0.5]: B% p0 v4 D. L5 c) p
( h4 u2 |. Q0 j" u
set honest-service 0
+ \" ? C( X$ h4 P B
8 C7 |! `9 }3 n! k9 {/ w Gset unhonest-service 0
- \; }; H% j6 r5 C" \/ E' i, x5 {* I R4 Z3 E4 A& ]6 S
set oscillation 0$ f+ a7 s* O& [" f6 l1 I7 C$ c1 }
7 R7 K! H) t- g5 g0 L- o6 S
set rand-dynamic 0
: D) F& o9 }8 Gend
! m# ]% P, {7 ^: Z( h. Y8 w: e& y; w( J* g6 h
to setup-turtles " m/ P3 e# O1 f
set shape "person"- ?9 v& S" q' i: F0 ]2 z
setxy random-xcor random-ycor) p) D8 Z3 @' K# h: Q5 e
set trade-record-one []
! L3 C" u4 m7 ^$ k9 H( ]3 M% e0 h9 u1 i" o2 x S3 e$ A, x
set trade-record-all n-values people [(list (? + 1) 0 0)] " J# L" J: m2 p, q$ }, t
2 [+ _3 g* S" }: Y+ Y
set trade-record-current []
) X: B8 ]5 g. T$ K4 aset credibility-receive []
# H9 N$ G! y( ~/ m# sset local-reputation 0.5" k/ z! v3 E9 @
set neighbor-total 0
6 d/ v/ Y6 W/ |& y2 z: s; |3 zset trade-times-total 0( ^, M' }2 D0 n( J" @
set trade-money-total 0
+ [8 N* X# z5 T2 Aset customer nobody& |" L& _; i& N' i1 e
set credibility-all n-values people [creat-credibility]3 {. ?" S- [" Y/ Z
set credibility n-values people [-1]
# i' P/ @# y2 F0 ?: x6 rget-color- ] C! {- ~- G' C
! x% x) f, T* v* D% Iend
* D+ _" v. K# ^$ M
7 P) @% B' T6 H; rto-report creat-credibility9 c4 e9 v; V8 l6 p5 r( v
report n-values people [0.5]2 z/ s" G# @1 Z4 O- `
end, n n* k: G) P6 J' x1 s" q
& B& N+ S5 R0 b+ z" n! tto setup-plots" `+ P$ k, r# M5 n
' I' h' Z# [0 V, zset xmax 30
1 p$ L4 Z2 o7 X% b: `, Y0 t3 v
( ~, |! j9 w( p3 o0 X3 Gset ymax 1.0, @8 _; v7 m. y
# Z& V1 v+ A5 x' }; i; u% e5 |clear-all-plots# d5 y9 C* Q5 l/ i7 v
' i$ e. x$ \: V) o3 x7 {: s1 x, \setup-plot1
9 [0 ?7 ^" R+ n+ l
( c ]- v u/ I+ |' }/ G3 Qsetup-plot2
3 E6 y: T. |+ D1 ~1 Q0 ?
0 O& ^" B$ r9 b6 z1 nsetup-plot3
5 ^/ _* d$ A0 ?# g5 k- D6 vend0 U/ N8 i, n6 J" ]! o
& h F/ c- ]( r: W
;;run time procedures
; d0 W% O/ @' U8 _1 g6 D i; i+ V# b4 Q+ ^
to go
- Y9 \7 |& b) i' X
- b7 R, t. }5 e7 i# eask turtles [do-business]
6 ?& d ~" C( R' b5 p7 Zend, i3 o" d7 W( d
+ X. Z3 k0 z4 ^( }" V+ [5 x' {. B1 vto do-business
a+ u6 E2 A- A: K& t" G: B0 l" j, V# K, z
+ f* h1 I, C( m- T; W
rt random 360% }2 w) ^) f' p3 U' T" G. t+ s
7 }7 \' A$ U1 u. K; P, w
fd 1
' U9 O# @8 p8 l' v. }7 a8 H0 }- v
ifelse(other turtles-here != nobody)[: n0 l5 ]3 ]% {+ t2 l
2 G8 G: s$ r6 k5 [* I# V, N7 \ Nset customer one-of other turtles-here
" T3 C7 B( t7 N4 h4 j5 J
6 B Y4 |+ J3 ` d+ o3 h' o;; set [customer] of customer myself i. L% T, t# l2 `! E2 v
# ?3 x! M. C. A. `" q( d
set [trade-record-one] of self item (([who] of customer) - 1)2 X! G$ J5 a! t% L+ R
[trade-record-all]of self
: F+ J$ k3 |" X& M! m M. c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 }' z9 h4 D ~ {2 G' T0 n
, K8 V* \8 Z3 R# Hset [trade-record-one] of customer item (([who] of self) - 1)
$ ?8 U: F/ J' s9 p4 w[trade-record-all]of customer" x* e+ M0 S6 @" y+ o1 M8 C' F* U
' H y# T( ^, M0 l' j" g: n
set [trade-record-one-len] of self length [trade-record-one] of self
, R" }' O5 D" T% a$ w2 m+ E5 H! ~
; `) V# Q# v5 d0 J4 Wset trade-record-current( list (timer) (random money-upper-limit))
4 {4 o' @, x- K
3 U3 m* t/ n9 v4 a9 F) [3 \4 ^ask self [do-trust]2 R, T6 D# ?& c$ ^; @( q6 \
;;先求i对j的信任度5 Q# B- {0 r* s7 }
) M* |& m0 {' Z1 z# ^if ([trust-ok] of self)9 B6 ~' f& c% u& r) C
;;根据i对j的信任度来决定是否与j进行交易[
# v/ p n5 n9 G, h, ?0 x* x+ J5 x& fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 A7 m* l5 S% ]2 l/ |" o: C
7 G1 a" W8 Q9 ?1 C5 a[
0 |# r" L1 R/ V' M* u( @: O3 \" \7 @& t V3 g
do-trade
! r o4 ]0 h: {, ]- R) x1 R# ~" |6 h, j, f0 Y* ]( w6 S& T) ?
update-credibility-ijl
1 B3 S x- g9 w& }, D! Y, F" a, ^. |! r
update-credibility-list
& _ o# G' e1 d* g8 d! V3 S
: b. {2 ~7 E0 X7 E8 b% x) V2 p/ s7 N5 E8 }7 ~
update-global-reputation-list
- M6 n [ G0 \$ Z; {+ t- F
0 C" H9 w5 L* R+ y3 V( O* @poll-class. I! j+ q3 s5 k" g4 x8 y
: F' p ^0 P- D
get-color
+ f/ C3 a) N- I4 T. n) w J& q7 }% s( g; ^# O2 }1 t
]]
) m$ ]1 X9 t$ J+ }4 b' l7 E3 v. g1 H1 r( x1 N8 b2 x. W
;;如果所得的信任度满足条件,则进行交易7 ~* F8 C0 W) I
0 @7 m6 L7 U7 M! G4 H! k* F
[
4 N, s2 \1 w3 x( G
+ \# C9 R9 o6 h4 \, f' x" Yrt random 360
: s9 H3 q: \5 y. h% |1 ~5 k6 W5 m1 l' ?' I6 S* Q7 X3 |
fd 1
. Y& f" L4 | ?- N7 R. E2 Y b
. f3 m/ c- \+ w/ `) D]
2 | C0 |6 Y: M+ m
2 s% I0 z' W" x: y2 \+ K) D7 fend+ B2 O+ ?* _# F
$ {/ z6 J, v2 H8 M+ T
to do-trust ; `1 Q& B% ]0 s0 |9 r
set trust-ok False. i- T2 Y4 c# h# Y
2 Z0 J* L6 s. Z7 z) i
8 T X; d9 D8 J q0 ~5 flet max-trade-times 07 L$ _% l" v. F* M
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- k0 Y0 J% Y" P1 plet max-trade-money 0
$ {! n% u' ^. o) f: W) @2 pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 B+ k6 k: v* Y8 l! [. @8 p
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( h, C3 F0 y4 J; ~, D$ D3 [$ A- Y, c Y+ K# o" l5 s6 n! |
/ `% N( Z5 `5 R$ f# ~7 H
get-global-proportion
5 E5 J. }( a$ f, I) w% k h" Clet trust-value
" v2 z! W1 C) J; f% Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
, j) I' }- W. N( Y3 j3 r6 t$ y* Sif(trust-value > trade-trust-value)
9 t3 q3 {: f$ @# k* E[set trust-ok true]
/ h4 l& q8 {2 l' h- U$ Qend7 J: h% V4 D% l( @5 v( e* F+ m
# F1 H, D3 e+ @) `! a
to get-global-proportion$ @& F; g$ \$ v. x, K: c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). \& l( t2 q. c2 _( r6 G% [( i) O
[set global-proportion 0]' ]# R1 K7 g% N3 m9 G
[let i 0
8 \1 s8 N- B6 Y1 x8 S' X) u6 |let sum-money 07 m7 _6 a: d" E& P4 ^+ J
while[ i < people]
Q5 a' |2 Y6 X2 m5 H/ l, E[
. G8 }( e5 i; Pif( length (item i
' L; T! ?/ o( d- ` B. M[trade-record-all] of customer) > 3 )0 J; n5 u0 _7 B% F
[, M0 ?" p. V& T1 P8 |, \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# w: h4 @. Q0 [/ M]/ M0 ^- F) u# E/ u
]) G( { S# z/ G* ^2 {9 x
let j 06 X Z( M% b- h9 ~" X3 H6 x# L, G
let note 0
! U" }0 W) [1 Wwhile[ j < people]
0 T, H- t) D" c) V5 [) r. _[
0 C0 ^1 q4 i% P; v$ v/ Zif( length (item i
% D2 C5 L$ g$ e/ x& D3 I$ w[trade-record-all] of customer) > 3 )* V9 k E6 l0 c/ j8 V
[
5 g" [) E# B: vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) g3 I- e3 D' ?+ `9 s4 |8 K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] [4 C( I) _) @+ o% O! c2 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 C3 f) y0 ^" f( ~" Y" Y0 B]0 o5 o& c$ q) Y. m0 f
]# \" u/ |) h, [
set global-proportion note
. K. M2 R% L+ K# e]
' A! v- n: F( h& h4 W7 Fend6 b" w' \* V2 g* M) ~0 n
- x$ N( C3 @9 y7 s2 {
to do-trade
( z+ O/ e# p6 x2 w/ i;;这个过程实际上是给双方作出评价的过程
3 F& T3 }& ?3 y- Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 J N {* A- Y+ mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% N! L2 q, I1 a0 ?$ Y8 Z4 \ r+ M) g, [
set trade-record-current lput(timer) trade-record-current+ n$ J* N. b$ k
;;评价时间! h; y+ [8 [! Y9 u) @
ask myself [
- b" g- v2 s. H* [update-local-reputation% z, k3 `+ b( ]9 _2 X+ W" j
set trade-record-current lput([local-reputation] of myself) trade-record-current% D0 d8 b' M2 j0 a' V; u6 h* d
]
# t; ? @: P4 s& p+ p S0 Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 t; L. m1 F% F& P% };;将此次交易的记录加入到trade-record-one中
3 F4 f. o! I/ {8 }! B9 N) t' C$ Hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), F ]; ~2 |3 m$ {+ r4 v
let note (item 2 trade-record-current )' L: q' s: o8 z4 K* u! y5 Q5 M
set trade-record-current
8 l; j. O& P: [. F(replace-item 2 trade-record-current (item 3 trade-record-current))( i0 S, N5 O p: ~7 |4 P
set trade-record-current1 f0 q* O( g; Z! L2 r
(replace-item 3 trade-record-current note)
, [& ]) p0 {: k, @# C& s* N+ y7 R( u: {
8 T5 g* g# K3 x/ R7 ]7 zask customer [( e% u3 c/ B" L2 f- J7 f
update-local-reputation" }& C1 _) `' \$ Z" V8 ?" g/ o
set trade-record-current
( f- H& X; p# h, j$ e& R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# e# @. g4 N& E8 \7 b2 P \]
) C& V" X) D G' j
; e) u E. b( }! N' w1 b9 h- W$ v. ?1 y8 x# j
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
t3 B& x+ `0 w# g2 n E# c9 L& J; {# h2 a/ W* ]& y) h) H& J
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ `, k2 e7 e" q$ {! u8 `7 ]8 }, d;;将此次交易的记录加入到customer的trade-record-all中
9 B+ v0 w" B4 Q) }end
% T: [0 \$ \/ n( r( p- W& i9 W6 h+ C' |0 m# A' N
to update-local-reputation
- P- m+ i. r$ H% e* @. ?set [trade-record-one-len] of myself length [trade-record-one] of myself
) g5 p% Q0 N) g5 a+ S5 D4 |% c8 S0 o4 a, v
7 g+ `% A* ?/ V& M9 R. O
;;if [trade-record-one-len] of myself > 3
4 F6 x: y. L9 j7 }. [update-neighbor-total* W# W( n! d4 t- j: S
;;更新邻居节点的数目,在此进行
# l7 w% w( ~ Rlet i 3+ ?; l( s1 w+ ^- r* T% g/ Z9 {
let sum-time 0# f: F9 }* B/ a3 {
while[i < [trade-record-one-len] of myself]
( C$ l0 g. v, }[7 p, ?! `# a0 |% S- ~( G& @/ C
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); x( U, O, ]$ S! B
set i
0 H( N! } Q5 r7 m0 K( i + 1)
7 z, |" n N/ Q. _% O" `* F) L]
) |, M$ n2 A: Llet j 3
! g: D9 V+ j+ [. O- C, R, elet sum-money 00 i( E* M" m0 B8 _) l' Y7 i
while[j < [trade-record-one-len] of myself]& N% W' D" P) I, O6 L
[8 z L# J3 o! u3 |) q, b
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)$ {$ c2 y. W, I" j. [: ]
set j
+ Y, M" g. }/ U! E8 g( j + 1)( ^/ q2 w) h. i; r. A
]+ }( b* Q9 X) O3 f8 R0 r& X
let k 38 d, R( _* k4 t
let power 08 a% `4 o* r% I- L0 P
let local 08 s: h) Z8 F' P* d0 p
while [k <[trade-record-one-len] of myself]
' c, {9 ]$ O4 F" m2 {[# U5 K! \6 x5 n' J; [2 ~5 f
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) - _% u/ i: ^- D, Z# r* K
set k (k + 1)
K. k9 s M) Y: k' t) c" n]* V, Q3 D; _( L9 ]5 b; G
set [local-reputation] of myself (local)/ Y0 G8 r/ k$ I4 l3 t
end
9 ]! c: t$ R( P! H- S2 m0 m0 z* I6 `6 b; S
to update-neighbor-total
7 K% ~9 M! ^# t7 {# b+ ?* c3 I
" |" a# H- `) {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. K- w9 {- f8 e' ~: {% W6 M( H( F ]' a7 [7 L8 t
( {* O) r7 l$ G5 r: Y0 u
end S: o7 q1 c, J+ _) Y8 p; H; i2 a
' ], @! E6 {1 V: l/ w2 ^to update-credibility-ijl
8 r" P7 P; S) v, _! R. v/ h$ y N
2 S# ^ I; B7 n1 l3 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。
" w! r+ m' p& Blet l 0$ G) O4 _0 Z2 N- p: d3 O) S
while[ l < people ]
, i: z% m$ v" Y: u6 p+ j;;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2 U" J4 c9 Q& O5 h
[
h8 D- t& d! @let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, i8 A+ E/ Q% ^1 S# x' Gif (trade-record-one-j-l-len > 3)% V/ C Z) Z$ W5 W3 l0 f5 r
[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 Y* X0 Y8 e; o/ l5 ^: H$ f
let i 3
2 j- C, w% J) B" X/ y( ]5 [2 slet sum-time 0# {/ j5 ]! B: o8 _! [
while[i < trade-record-one-len]& P, q T9 @" A% [ m$ J( p; o
[3 }' C1 c, n: k7 V" d8 ^# z* V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ }: p% r9 {6 X- L, f/ \/ A
set i/ t9 _2 g6 V2 J& D) S
( i + 1)! C, Q' ^- Q; D/ D% \! _0 ]
]5 _' m% Z S g% \: L7 g! H9 V
let credibility-i-j-l 0' c" d B9 j3 X. V, g. e, R
;;i评价(j对jl的评价)
: k& c9 d- q6 \: Z, Hlet j 3* I ]6 t# ~" L; f& v( L; Z
let k 4
) h- C; p/ C6 t2 m% `while[j < trade-record-one-len]0 s" Z# E- n. N: m1 n- q ?
[9 I2 g( d3 b8 o* G0 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/ ]$ s8 |! ]0 f! B; Z
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)0 L, J, p4 D) _6 t4 |4 n- [1 {
set j
4 p! p; {7 x% O0 l3 d1 U( j + 1)
. N5 _! U" M' P$ K, T]
+ V3 {; m( }& _! Kset [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 ))
1 m% Y; e2 J" ]$ a: K( c" W+ d; O0 Z+ k/ Q" B
* W2 D% [# X* d
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))4 C0 b9 x$ L6 U4 J J, y
;;及时更新i对l的评价质量的评价) O9 t" a e: D
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 ?& x! l; _1 Cset l (l + 1)
5 u( K' R* i; Q( o]
% ~- S7 M/ U: vend
0 ?# i+ p* g: R e) H3 X' L7 t
to update-credibility-list. h8 T- J# o) _2 M
let i 0
: w" X" ] \& Y7 r s2 f# twhile[i < people]
7 Z7 _6 S$ q; e6 h& ][
- r/ J3 T& B: U; q1 Z% ylet j 0
' Y7 J. l9 ]- z' glet note 0
8 m- e* T2 {7 g$ @0 p( W3 rlet k 0
2 n% \" Q' b) l: P/ I( _( Z;;计作出过评价的邻居节点的数目8 G7 ^6 h, s# ]- |% S
while[j < people]" j& C/ i3 N# D* n7 W# S$ B
[1 \, a) r& L" k' r
if (item j( [credibility] of turtle (i + 1)) != -1)5 x$ }; Q) W- b: `9 B( H9 E0 ?: r
;;判断是否给本turtle的评价质量做出过评价的节点
7 b, A1 f2 m2 A[set note (note + item j ([credibility]of turtle (i + 1)))
* E d" S" ~3 n D' v, m;;*(exp (-(people - 2)))/(people - 2))]
% n, Q6 E, L0 v) p4 H/ K, ?/ |4 ]9 Wset k (k + 1)
9 D4 T& S/ ?, []; {: s. l7 p8 ^: b! @6 \
set j (j + 1)
. J" z2 E0 f* @; @]. u: [; W: D- Q5 \9 {% Q% }; k! k
set note (note *(exp (- (1 / k)))/ k)% K3 F$ l+ U0 b/ t0 S) o3 d
set credibility-list (replace-item i credibility-list note)( y. y7 h/ x5 O5 }
set i (i + 1)1 Z/ l4 Y9 Z1 \! U
]3 P; f" P- `( c5 E, c' T- d
end; P9 h/ U h3 a7 T; x* N
9 S, K5 s+ x) y. Zto update-global-reputation-list( `4 Q! l7 D! r
let j 0
' m! Z$ Y8 |" V, G/ @" g7 Awhile[j < people]
9 X9 F- G+ |& u* y/ o/ t[* X1 W0 b! l4 s: O0 B
let new 0
+ Z+ w9 U( [" v;;暂存新的一个全局声誉, j- P$ Y+ M' F. h/ G/ h# c
let i 05 F: F8 _ y. `& z8 T' F8 {
let sum-money 0
3 Y$ \' f9 R, _ `let credibility-money 0* U: ^+ L6 h" u6 g( q
while [i < people]
$ R l9 R3 A# _$ @3 Y4 @( Z6 c[
7 V6 n' d6 ~+ h' N: d2 i# ^set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* M {4 `0 v7 U3 C" [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 ^/ E) Y! N$ [' Eset i (i + 1)
0 E, o7 K5 | E' {9 d, r; G]+ W( T3 D* J- X( c* G: \
let k 0
% n, n" f: X' ~+ ^0 Wlet new1 0/ Q6 ` L, ]# m5 _6 ^
while [k < people]
6 t4 N# y$ {) a% r; F$ i: a Y[
- J, @! n- J5 E9 o: [; @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)7 l) A$ @% K9 o, o+ `
set k (k + 1)3 r7 j& U- {" Z! W2 c& a* i# g
]4 i% y y9 D: b/ Y/ ^/ G* |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! z0 X S# o# m4 N
set global-reputation-list (replace-item j global-reputation-list new)
4 D. r9 W5 c6 \6 }set j (j + 1)6 f& C: a. `% B/ J
]
8 K/ ]' I/ J2 `* S; Fend8 C0 B8 q& K( O/ @/ x9 m q @
4 R7 R: z) X/ s
+ {% H1 J7 E! L+ U5 L* A- M. I O3 _+ Z5 J$ k4 A+ M) h6 i3 W" x
to get-color
' @, @, w- K; B
1 y3 H0 d! I; s; a: l) aset color blue
5 l4 w6 E- L- S) S2 D0 u! }. h, Q0 tend
- |; j0 @% ~; u; x6 G# t% q3 [
1 O7 M# x B" B' D- X, Ato poll-class
" e, T3 X) R8 `, I$ ^6 ~+ c' H, Eend1 F& @; T' C- X" W1 e
5 s$ V: u( V* _
to setup-plot1
# s' f* _ @6 }3 d8 H6 p. A* A1 C: I4 W6 h/ q6 H+ p! n3 E1 ]
set-current-plot "Trends-of-Local-reputation") l9 S0 ]3 V" u+ ~* V5 \6 z
7 k$ Q4 S+ |1 w; W+ c, f k* @0 Z+ ^set-plot-x-range 0 xmax/ m2 D9 K$ c# L5 v
' Y$ g" A1 ?& j3 j( [) Lset-plot-y-range 0.0 ymax
) K) |. x: u9 i* O1 aend/ x$ ?$ I& E8 x! t p3 V$ s
1 [' a- E& E4 t$ m# b1 }. Z# Kto setup-plot25 X' h2 {, T( }& L) ]
' j0 v* i3 M' R2 f/ I7 [$ {set-current-plot "Trends-of-global-reputation"
1 g: W$ w! `# ?5 ?; \/ q( i* ^: z2 @1 H; Z/ t! q' H2 Y) J& L
set-plot-x-range 0 xmax Y: a9 t' [( o' R+ K; s
0 B- O; T% Q% p$ B2 I% _
set-plot-y-range 0.0 ymax2 q) o- V5 U& R* [. ^% D5 r: f
end
# t9 h' w$ b6 h
& e) c) o5 M. O G* `& _to setup-plot3+ o% z* F4 d' u# r$ m6 f# l' L, J7 |
/ F8 O( R2 ^$ o" w T! bset-current-plot "Trends-of-credibility"8 R& ?5 v# R& P/ ]% |. m/ p
l9 F% d1 w, l) f' ?8 Z1 v+ U7 T
set-plot-x-range 0 xmax
+ t/ c- a# r4 ` o$ b. G) ~+ n% L& f& k9 F
set-plot-y-range 0.0 ymax7 d6 ~; W, N9 Z `
end1 ~ B8 b3 e4 P2 p T& m/ w( k
& \' G1 F' D+ }
to do-plots! j7 c8 ?) `: \- ?
set-current-plot "Trends-of-Local-reputation"' C; g- P$ S1 [9 a2 K& j
set-current-plot-pen "Honest service"6 G' z' H' O6 K
end
Y- R" H: n) J& v( b. T, h1 n
8 _( ^9 X+ ~/ ?8 v5 F3 O[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|