|
|

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$ f1 \( c( W$ R" s: j/ |
globals[8 Z2 a6 n6 ~0 y$ I2 e$ A$ p7 l# I& q
xmax5 b' s% b8 W" b0 w; `
ymax$ t) X, n/ @) w" Q# \7 N
global-reputation-list
M9 w) z7 S- Q/ |( G, l4 V
i' h# l, D! |7 X; u;;每一个turtle的全局声誉都存在此LIST中( c. i" k& b9 A2 J* m) Z- x
credibility-list/ d) }1 P. a6 k, q7 W7 U7 T4 ]% P M
;;每一个turtle的评价可信度$ }. M3 }/ o: Q2 |) w- L" [ n6 e" W
honest-service2 M2 ?) n) v: I7 E; o. ]
unhonest-service. e5 J5 {+ Y6 @% v" t0 Q
oscillation
2 o* E. p: g4 l# n8 v; Q& w2 Trand-dynamic$ j" c# d3 J; X7 S% c
]
6 j0 l/ U9 h1 a) L. Z1 F6 r2 N* i% G" U: ~+ S* M, }
turtles-own[
, x- }# J, d$ R; [# M0 {trade-record-all0 t0 C8 s2 q1 F; @! a) e% u p# a
;;a list of lists,由trade-record-one组成
y8 i6 `8 q9 G: Wtrade-record-one
& D# \ _3 D* w6 x, i7 ^;;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 n% c5 J) u8 D1 x2 `
) R% ^5 p& V8 a8 G9 f+ X$ Z# X;;[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]]
% q! ]0 a/ p8 y( ^, n! Ctrade-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]- z4 f9 [8 C9 X
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list
5 ?; g, v4 ~1 {: jneighbor-total
f y/ C C# M2 P1 N;;记录该turtle的邻居节点的数目
* P5 W f5 m$ ]% atrade-time9 @# U5 d/ K" |% a4 g
;;当前发生交易的turtle的交易时间
C; D4 Q) _2 p Yappraise-give' X, n6 M. z2 q D; P9 \* I
;;当前发生交易时给出的评价$ N- i/ s) ^7 s
appraise-receive! G/ K, D2 H7 |7 T* S* W+ |
;;当前发生交易时收到的评价& y8 M' w3 @# d7 O3 ? x
appraise-time
- n" N {& e+ J" M;;当前发生交易时的评价时间* d. E6 _6 ^% K \
local-reputation-now;;此次交易后相对于对方turtle的局部声誉2 N6 | W( g: p3 S( U; ^5 n4 Q
trade-times-total
4 Z$ I! }2 r6 g7 V;;与当前turtle的交易总次数
: q F) O! i+ P+ ?: Strade-money-total$ _( q, g8 H- D; b& N0 B) m& X
;;与当前turtle的交易总金额
# t& S, L; I, [8 G! W# |local-reputation! ?( J q+ x/ o O8 P
global-reputation
4 b. F: y: n/ R0 Q. B8 I a+ qcredibility& L2 [4 P$ ?* V0 M
;;评价可信度,每次交易后都需要更新
! i f" H7 r/ ^- S3 ^. O- {& jcredibility-all
% B0 ]) \, C4 n, E5 ];;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) N/ X+ ~* }/ {: E$ p9 m* Z$ Q' d+ k
2 _9 F' y, W. [5 c0 M7 {
;;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
# |( f! Y6 p' ]% {7 Zcredibility-one
9 H. ~5 G% z! }( X; a& k: R;;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
; e+ O1 S( c7 f; S+ G$ iglobal-proportion/ j* _ A" m }5 x& D
customer
/ j: ^0 Q" [, ^3 e# ^customer-no
# _4 x6 e3 w) Q5 wtrust-ok8 t; |6 Q; _5 ]5 g7 o
trade-record-one-len;;trade-record-one的长度/ @9 L7 A$ [) C( u, e0 c* v2 H
]7 a1 Y8 D' q, F& b l5 s
W# j2 P, E( Z8 w;;setup procedure
3 V- A7 D3 ~ \! ?! L
- V, P7 g$ ?3 D9 x# l7 Bto setup
+ }3 Y* I V9 [- V) X; [' H3 w3 {
ca0 K6 ~) I9 ~. O, i! }3 |6 h
' L `2 ]- ?5 e: L
initialize-settings
' {8 b% Q, ?7 X
_8 P7 t( Y- i$ \crt people [setup-turtles]
# w! P; s8 f3 d" I3 E1 Y, _
: E; c1 W3 K4 U4 {reset-timer; _3 s/ ~; z8 O# ~: B2 F
. v3 m7 [8 K( j: I* h
poll-class# b d6 @1 C* A9 e' W, n$ }
# L# X2 b C. F$ v; J& n" C
setup-plots
. o0 a i t: l, [" ]! ~
* c% u/ S0 O7 A/ d+ f, Z2 Cdo-plots' X/ E" K* L& x7 u2 K% J- p
end- \, j1 N/ s5 N0 k4 b' I* J8 W
) Q4 @& u: @& D
to initialize-settings6 G. q) R* T( k0 G6 j8 p* I" o
/ U( h6 O$ i+ G2 Gset global-reputation-list []
% U- L0 i5 A/ ` {% T2 j" z
E. D0 G# D$ s( rset credibility-list n-values people [0.5]: x; c9 Z: f# H9 t
! w8 E8 X( v$ b. eset honest-service 04 b' F$ O- S7 H% N! m( E( q& ^& R
9 Y, N( A0 g; W: A' h2 c0 Gset unhonest-service 0/ q$ w* P3 M3 ^& N c5 b- u3 h& l
& H4 r( x3 x2 x- o
set oscillation 05 M8 O6 j# s! p! v& Z
# o/ o) [7 ]' J- ~5 W3 Y3 T Rset rand-dynamic 0% h* g2 I0 I4 O) O6 K7 s+ e7 [! m! b
end
) }! M/ s( K: @$ t$ d" d- Z9 @5 a7 j' q1 g# S6 _
to setup-turtles
% X9 ~; T9 d/ Z% Rset shape "person"
5 b# z' P) t: d) W$ Asetxy random-xcor random-ycor; y" }7 k7 p! b) \
set trade-record-one [] i, ?8 W* Q; X) C* v4 W# x
" s* {9 f4 b+ W6 b8 _set trade-record-all n-values people [(list (? + 1) 0 0)] ; q' r {. G4 F; q9 M$ [' n
2 X, I4 v) h% E# _" v6 H- n' L+ _/ aset trade-record-current []
! [9 s$ n, J$ }2 g, `5 e" Zset credibility-receive []
1 D3 e& R# J7 Vset local-reputation 0.5
1 ^2 z# A% Q/ @8 X% e+ E8 yset neighbor-total 04 q6 _" [: Y. x; S \
set trade-times-total 0
( I8 d" b& ~: X; Y! Fset trade-money-total 0
! a! o# k0 s( }& R- ]set customer nobody
5 l) S1 W! ?' ~& ~set credibility-all n-values people [creat-credibility]4 d5 Z; ?0 s- e3 r0 s& ~
set credibility n-values people [-1]( x7 N! ?' w5 Y \" b, e! K) w
get-color2 y0 B2 e* K9 E: M2 i
& w6 P/ o$ [8 x5 q6 W( \% Hend
6 O6 V# h! S: C
* B/ ?: X- V7 N: g& H/ fto-report creat-credibility' r8 f6 J( Y! l2 w' l
report n-values people [0.5]
' ^# V4 J# g9 c- L: ?8 m, Bend
: ]. r; D, k9 K* B# s4 v# ?3 E, K9 w
to setup-plots
, Z/ Y1 d# H1 Z6 s6 N
2 F$ T, P$ u2 e9 ?set xmax 30
* A! e& P! Y# b! f2 H3 `
1 e3 W& S: M9 \, s- r" @+ Q' |set ymax 1.04 z6 x3 f3 d7 Q" E& [2 M' U
% E; t1 Z; n0 K" R! Oclear-all-plots" r6 u& B) T0 |5 }
2 d6 q. i* W$ l" |# F$ |* I; nsetup-plot1
; f" O, E) e m/ ?, O2 y& d7 v5 M7 m$ p, V% \! b
setup-plot25 ?2 |. ?# W! i/ r- v
6 X T+ \. X" g* Z
setup-plot3
* Z! n. ?, E& x" F# [end" v$ B" ]$ g/ y: b
- F F9 Z0 T- k: Q% `7 j/ P, n
;;run time procedures
9 \+ q- ?+ b+ q) U9 I
8 d. w) c6 {) X: K3 T, ?( zto go" o. F1 R& v1 y T3 ]& }
9 E% r2 T$ @. M+ r7 O+ lask turtles [do-business]
% o1 C+ p9 u% M+ o8 E2 [' Tend
6 a% \' S' {( T1 b9 e4 r! m7 [2 b' n: Y% y6 t. d1 K
to do-business * h9 ^" }3 o8 b! r5 q
" A; N9 u3 _2 C0 W/ [# M# K: t; [5 m8 M( h( B
rt random 360
; a3 t' d/ B! f) n4 c. t: J- I! K1 u# c% T9 e/ ~
fd 17 V" V, m& @! V6 ~ S- f
) V$ D) L# A) e+ T* }5 lifelse(other turtles-here != nobody)[
- a; l+ D: t( c( [8 _$ W# `# l/ F, J6 I; U+ t
set customer one-of other turtles-here
- Z' c, @ f8 [9 b- O4 B! @; }4 b9 f
' L$ [) |+ Z+ w; m7 _# c;; set [customer] of customer myself
1 T5 C( E: U5 @) l: v% K4 w" Y2 g6 S1 |6 e8 f1 s' U
set [trade-record-one] of self item (([who] of customer) - 1)$ h* p$ d2 ]3 q% x
[trade-record-all]of self) I* t2 q; v) H; Q) T* w
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. B+ m+ O6 N; X6 u) f+ g6 a0 [. t
! r% E9 y1 R7 ~. C. }set [trade-record-one] of customer item (([who] of self) - 1)0 _. u5 c* P9 v: ^/ q; r
[trade-record-all]of customer; `+ E% A% x/ s' g6 h( L- v% O
) F) W h1 x( i: D' U/ xset [trade-record-one-len] of self length [trade-record-one] of self% p' N- a; v% \: v# v4 l9 F/ V
e+ G% k, O1 x% ~) a
set trade-record-current( list (timer) (random money-upper-limit))! ]% y }& _0 Q; z: o
) x9 j! F2 z, d0 R8 n+ V) _- R, jask self [do-trust]6 a9 N. N9 k p+ j
;;先求i对j的信任度: K! m5 u$ K* O% p v1 Q
" g, i l$ y$ I' W2 }1 ]( b Y
if ([trust-ok] of self)
/ \; Q, [. [/ ^;;根据i对j的信任度来决定是否与j进行交易[
+ J; ^/ B( L- n- ~. i' M, iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! c; @/ |' K; C* M3 K! n# q F9 g& k$ X, o+ u; I$ N, @
[4 _/ ^3 N( r0 |& _& G+ e y( Y6 B
: Z$ U% W: T Z' ^do-trade. v6 ?( C* l2 e4 m$ X" R
- E2 I- _7 X5 y- y# ]update-credibility-ijl- q& M8 r5 [+ X- O
* G# W( s6 W$ c
update-credibility-list8 q' \& a9 w) {4 H7 o
& v2 t: P/ L: R/ V# d
7 z9 _5 A/ c# X2 `" O. ]. iupdate-global-reputation-list
+ x% C! n3 o$ h+ A! u# x) ?9 R& j, q; u( ~* J) \
poll-class
( V# o* v9 j6 K4 y- g ~. i, `8 g* W: @) O- K: T
get-color
3 C2 l, T0 K8 j+ N8 F* h- W2 c, l8 Y7 ?; k" J. y4 N
]]
8 _/ T2 I* p5 p0 L, j, J- m/ l1 b: {* N( ]0 R; ?1 T' ?" [' I
;;如果所得的信任度满足条件,则进行交易+ k) z( o& n; c1 [. I
7 P; K z6 r3 F( J5 m[; @. S/ Y7 l- ?0 Y0 O( l2 A3 a
! U; p* k! {; q( C3 ~/ S: S
rt random 360: u$ M& \6 i# X. Y6 P
, U* Q: L4 }7 A0 T4 p9 x
fd 17 d8 Y* B4 Z7 ?- x" [
" O2 i% r2 Y; d
]
% h( l# t9 y! z5 M; R% x
" X+ J+ u& O# V# ~% T5 Y6 H" }end) @$ q5 _/ \+ \) \1 N; [7 \
: u0 ]: T6 f M" E1 h" vto do-trust ' J: j$ [/ |' ^- b: X
set trust-ok False
2 d* v- j% \, i5 u
' W( }7 e1 _. n% M' {
5 ]) U& O( w/ z& t6 d) rlet max-trade-times 0) x$ R( H8 L- B( \3 r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 Z$ _* L" M; [+ J: hlet max-trade-money 0
8 L1 ]% J4 s H m" l' \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: a8 v$ L7 l" R% O) ?6 d6 L% w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). S7 |$ `4 G, x9 ~
% v3 g% a) w) W5 A& W7 _
~. p7 @- G( _( `1 h* P% |get-global-proportion1 ]. b. Y. r) q4 L! d
let trust-value& ^# i# \; h- ]
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)
$ k6 M; U* V# lif(trust-value > trade-trust-value)
5 K: ]3 R* t0 u& m+ b[set trust-ok true]5 w1 [' x+ p3 I; O) E) m2 d
end
; t2 R' a9 A7 Z* w) x8 ]
% o d* v) x6 O7 S) c* N2 Xto get-global-proportion. f1 {( u o6 m" V/ o* K( M1 e
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 l# @8 Q5 H! }
[set global-proportion 0]- ~( y/ Z6 o- H% w
[let i 0
* X. c! x: j" F9 O/ }. tlet sum-money 0
! q* U3 ?( M" l9 q8 a, t$ Twhile[ i < people]5 }% ]' e' W6 _5 W0 P
[
; f% b" y' L, `3 F5 S- ]if( length (item i% ^4 g" }/ y: G; P7 h
[trade-record-all] of customer) > 3 )
' t. Y; b3 l! H! V[
: o, B& M% U" C, ^& M. \6 jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))- b% d% u: B" q" `
]
% i. H: a' p1 ~. Q. q: W% c, z3 T]
& Q& F1 z7 h! g* ^& ?* [$ Alet j 0
+ v2 X' w! C7 n2 Dlet note 0
- m; y2 i. D8 Zwhile[ j < people]
: k8 x$ h3 Z7 c! w[: J4 A) g7 `; i" z0 {
if( length (item i. q7 p' e/ b/ h6 X+ x
[trade-record-all] of customer) > 3 ): p( \: `; H2 c1 H0 v4 t4 C
[4 v3 U- x! `. D+ M+ S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. |3 l% t# Y. f( F+ c" ^[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 o2 l" w! F, p% ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( p* S. j; l6 {4 {" U) _% l
]% n) c' B0 c) n9 G
]
) B9 ~* J7 i0 w% x: D3 ?4 l( Z; Wset global-proportion note
8 Y9 e% H" j. n. }; J9 I+ q], `! H2 t. {& i; p# k- ]
end
0 @3 ]% k, ]5 U. H+ F- K; I5 o
2 l7 s; C; A: R* l& _0 x, ito do-trade
' h' m+ O0 L9 z4 k7 S$ J;;这个过程实际上是给双方作出评价的过程
# C- ]8 @/ E1 X( ^# Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: g$ O$ Z& e; a0 D$ N; {5 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' w: }$ ^) i3 I/ Wset trade-record-current lput(timer) trade-record-current
: f9 X$ Y# |% @) I;;评价时间
" p7 C1 r% Y2 C' h* V: t/ ]1 }+ xask myself [
# n' r! |! }# b, F+ F Supdate-local-reputation
6 B+ W, A; p* I* Lset trade-record-current lput([local-reputation] of myself) trade-record-current W8 d& t4 [ ^8 {9 U
]
* s3 f9 s- N3 ~) Oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 L% s: B3 H/ _% R' t;;将此次交易的记录加入到trade-record-one中6 W4 c% V' C0 x# ^- P( [/ y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 w5 I0 c8 P2 l# w/ |& Q
let note (item 2 trade-record-current )
. v# r! t* m/ l6 R5 a, \set trade-record-current
: U& X' _0 P) o7 n% |' K0 Z, X) I(replace-item 2 trade-record-current (item 3 trade-record-current)), J: n# M& C3 p( D0 ~" B
set trade-record-current: f# y4 u$ C# M8 H+ y( x4 B& c F
(replace-item 3 trade-record-current note)' C* C5 U, C$ {: N# n0 q$ t- s, M8 W
% ^- N9 w) j6 l5 _- v3 L, J! s5 _- P; S. v% t
ask customer [
( @8 V4 J: n! mupdate-local-reputation6 a& p* w. z. J; e# @
set trade-record-current
$ E7 ]& f% v$ m$ B+ w- r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # s; A6 t) p# e
]0 J& ^! @) T7 X% k0 c
3 t; n" c/ [; G3 x6 L8 ]! \- e7 ^) n8 [9 |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 G; F4 J6 _* v& Q7 g# o b1 [* M
O! x5 ^5 P6 k! {# kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% n/ v' K2 G# k- k( ^3 m;;将此次交易的记录加入到customer的trade-record-all中6 @: t" z% V# _# C1 A% |; ?# [
end. r& {2 w" m5 n& S: d7 Z. [! S" B
8 s& ^" Q9 W7 B3 K- t' R$ p
to update-local-reputation
# H3 M1 {+ P6 S5 t6 wset [trade-record-one-len] of myself length [trade-record-one] of myself% b2 i1 ^3 u G* W# Y2 K$ F
; S2 R( T' i, ~1 Q3 a
$ T, L5 f# N& L) j0 u
;;if [trade-record-one-len] of myself > 3 ?) ]1 p& z+ L+ H0 f" `
update-neighbor-total% n* B) N- V# x9 o4 F2 u
;;更新邻居节点的数目,在此进行% l- F8 p' y0 _; Y7 [
let i 3- ]" Q- b, z' \" v* O4 H& }! T
let sum-time 0
0 G" C" n2 z2 h3 U) _* Rwhile[i < [trade-record-one-len] of myself]4 i$ s- U% ~1 a
[% W, w. Y! k6 w( L& `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( t C$ s; t/ S. }: k& bset i
+ Y! _ s1 H( K( i + 1)
* l$ s; Z- x5 ?% f* R# ]]
! p8 Q3 U$ ?3 P( V+ m$ F6 |; alet j 3
: M6 l" j5 J1 d. p6 W |- Flet sum-money 0
; O/ h" {6 p6 K/ O; \( W- L) jwhile[j < [trade-record-one-len] of myself]& ~. e7 M5 g8 k& M' ~
[
* E1 I' c( x4 u0 H" M; C8 mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. r# S+ S1 J! o g/ j2 eset j% @9 ^6 o) p% A! q' B1 W
( j + 1)/ K+ N* k2 H* L2 M9 H+ O0 e. j. y# l
] f& f* |* ?- J) ]! F! v4 P
let k 3- u. p8 \2 o8 \- E' b
let power 0
. T! I/ d% X _: Plet local 0
' B, T6 K6 @; u7 U' {" Wwhile [k <[trade-record-one-len] of myself]
8 s/ c3 R6 h. w7 V/ k# {[
$ e- O! A5 I, C! Gset 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) " ^' Z, Q* E3 X# U8 e
set k (k + 1), k# G8 `1 b9 s' S$ R
]
! N4 F( u, _/ z, qset [local-reputation] of myself (local)- C- w( s3 s4 `0 V' g1 o. i
end
8 F! O+ V% l( x/ v1 T/ e, T7 j/ y) E9 C- D1 X& K( R: Q. y% J
to update-neighbor-total
, O, y: {* w5 f+ F9 |5 C! Y0 L4 Y% i8 ?! j' X. N: v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) o" B o% M) \0 r. Y8 i) {
( v$ F' p3 j {+ D5 W
& t0 ?" a1 M R" i' b2 q; F" lend
: x8 T2 h5 p9 F8 i/ v! v) ]' V- i" H
to update-credibility-ijl / c- l$ ?& v3 b1 H
6 F- R7 k3 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。0 v1 T. w) |( ~
let l 0
n% w. B) [# owhile[ l < people ]1 ~5 @+ A6 B: m5 z
;;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4 Q7 }4 y# P/ Y- _; f7 l
[
. G8 ] f9 ~% k" `let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 n9 @4 r0 L0 N4 p9 c
if (trade-record-one-j-l-len > 3)
* ]1 N; h/ \1 `* @7 g& s S0 u[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-one4 t$ [) ]0 j! x- q+ U% u" r
let i 39 W6 p) q' ~, Z
let sum-time 0* Y9 c% x" h* e$ ~
while[i < trade-record-one-len]
$ \' O% H; z" `[. X2 ?0 q( I% Z4 z$ K8 [1 \2 Y/ i
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 ]* X* m( Y3 H' G2 j9 ]
set i( Q: ~. y3 s; [+ j! z" K
( i + 1)
O$ u! u6 ~- m+ i]8 V! W, Q2 g7 |5 x( _
let credibility-i-j-l 03 C g, p+ v9 p/ O, x
;;i评价(j对jl的评价)9 \$ R' `2 f' C/ [8 d
let j 3
6 Y+ `. p) |2 T6 A+ Slet k 4# H" n% N3 _* d2 v2 g/ i
while[j < trade-record-one-len]
4 G$ b: _4 K5 ~. G4 H[
: a9 E& |- l7 W& t( v, G9 hwhile [((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
4 h3 g/ J5 v4 w! Y0 }8 G, mset 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)
1 U/ E: C9 c" A2 H$ Q/ V2 zset j) t6 H! B p- ?( _9 b: a
( j + 1)2 y; [) Q5 L4 u' p9 K5 \% e
]& X, [" K* P8 `* I9 }( l9 `# t! r
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 ))7 |, y3 n c) K' j5 \9 _
2 O1 n: R+ Y' n4 M& W; i+ S; A, P
W. U1 D* j6 U" H/ ~
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ U3 @6 K; c- Z# R" B% q3 d$ Q- w;;及时更新i对l的评价质量的评价/ w$ M7 `0 [9 p# q4 ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
~- d7 x* o$ g0 Y, R5 G. T% }4 \set l (l + 1)3 s I G; [0 H# J B! _# j
] a( m5 ~; V* q: L# S" S) m
end$ B( z6 r: J. V, \' Y0 h4 f3 [* D
& R; w* a: B& B) f1 ~" W3 `
to update-credibility-list
' ^1 J$ {0 N$ ~- ]+ x6 Plet i 0
7 h$ u) A$ _$ u. l+ \; T# I8 Pwhile[i < people]+ p( X4 Y; _+ B& J! e3 [8 G3 x( W
[# Z4 w4 M: o: U6 a* u/ C9 i! x
let j 0
# G. U6 o9 f: }let note 02 ?: m8 O- V) k: r5 e
let k 0* k6 E0 v6 H- L9 n0 L. M/ y
;;计作出过评价的邻居节点的数目3 t% V$ V2 Q+ _# w9 f, \2 a
while[j < people]- Z; f% ]1 m H. x, _. A) ?2 V
[% S; N9 @/ n0 [
if (item j( [credibility] of turtle (i + 1)) != -1)
0 a& M. m( }+ x# f3 u6 h8 A;;判断是否给本turtle的评价质量做出过评价的节点
/ M$ n* b9 t6 z( [[set note (note + item j ([credibility]of turtle (i + 1)))
" R0 C/ A/ D4 X$ ~;;*(exp (-(people - 2)))/(people - 2))]& E: M7 e$ P# \
set k (k + 1)& M% L4 Q5 @7 \5 Q" h2 R
] S/ d0 `& i. m: V$ C
set j (j + 1)
% K( O- I6 F0 E% l `! i] C/ ?4 }7 y1 S& t
set note (note *(exp (- (1 / k)))/ k)
/ Y8 h" Q4 E7 s6 rset credibility-list (replace-item i credibility-list note); p$ [2 ?/ S7 Z/ j
set i (i + 1)
. c7 i$ }% C! _. y$ n. a3 g1 D% @]7 _' T) |1 s4 }
end
0 m) y+ Z- K, j) q' J4 b" w! B! M$ K* ~* _! l
to update-global-reputation-list- T2 `7 ^8 n- d* t& k
let j 0
: g6 d1 F; e \while[j < people]
+ M: R9 m" {" D5 K" o[5 n# A% ~5 P" a1 Y# o' N
let new 0
. N: H7 T2 e& ~( Y2 o;;暂存新的一个全局声誉
3 e& n: k z+ n! a! J$ y8 Zlet i 0
' @+ n! }1 R2 _+ A7 t1 wlet sum-money 0. r0 T* D$ {3 c$ b% N4 {
let credibility-money 0
+ P j$ T' a% D5 n+ k, Hwhile [i < people]" f" E! T! q7 L; X5 \& e7 _; c, ?) ?
[) V+ J7 v. Q; O8 @3 W
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 `7 A- n9 s+ T. T* G6 v ]; r0 iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, e5 |+ r, f, `; r& P: u. Q* s7 {set i (i + 1) j9 n- V$ j& s5 K9 ?9 F& {
]" g6 q: Y( d" o
let k 01 I$ {6 M, V6 Q9 x& R. P8 a- V
let new1 0* O" u7 e+ k3 p
while [k < people]9 H$ I) x9 B% v! L6 g
[
# s/ I# Z- N. zset 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)/ J4 _9 C8 a8 w/ a
set k (k + 1)
' |' g$ P* R$ o) M) g4 Q0 o]
3 U9 X* I) B2 P; ]3 \9 S6 [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 p+ Y+ i4 x. F! q0 mset global-reputation-list (replace-item j global-reputation-list new)/ p% l. e* L' |2 }4 O! d3 ^
set j (j + 1): \9 C$ X! x0 R. Q
]
" _; D; t3 f4 V3 x ]( Nend
$ [8 F# `( H* v B! U1 d5 ~3 Z# @3 T& e5 I- W4 U( a* f
6 F! F& _& R3 |; y
. O$ L1 S/ l( b0 x- \# {to get-color+ a; Z1 n+ B" y% H3 a' ]9 c( y: q
" b+ D g. Y2 h) y
set color blue3 ?# r1 F# \4 |. i. j, {
end
# R! t- @/ p9 H8 ]3 E# Z; k
% ?, q9 }" i1 w3 ?6 B+ Y" gto poll-class0 k0 \& E/ ?( n# q* C
end, ~5 \- N" l6 `8 U
8 u" m# H4 X+ c
to setup-plot1* w! N8 L1 i4 b* N; S0 O
% A' w- L- g- \; ^% @ m( @- b
set-current-plot "Trends-of-Local-reputation"5 x; K9 k; |2 Y! P
! Z+ D, k8 b2 S6 Hset-plot-x-range 0 xmax; |! h3 s/ ^; H- f* L$ `( P
- Q# f# Y9 X, a0 T+ G
set-plot-y-range 0.0 ymax) U( n8 _7 Z4 R$ ?7 o" n" r
end/ k T" Y6 v7 G+ q
- {$ K/ |% Z6 p9 g& Bto setup-plot20 w6 j9 L8 h1 J: X, z! G3 y
. Q- A) D# Z* g8 Rset-current-plot "Trends-of-global-reputation"8 y+ t) W7 r' U7 @
% `. F: H M' y. p% n. K
set-plot-x-range 0 xmax
- ` K: C% h. j! U3 L& d' `7 R0 A- T. i9 g3 O% d* _3 R
set-plot-y-range 0.0 ymax( b/ h4 W: T% T8 B* x; b5 k# b7 q
end
0 W/ h0 T. h& g& B9 g$ Q) E3 K( V1 D
5 m( c) G! D+ I: V" H2 Y9 Zto setup-plot3
. _6 y1 n) R* ?4 t8 P/ Z; m9 \0 g6 G& V& O5 Q
set-current-plot "Trends-of-credibility"
$ R4 ?0 L8 g: D- L8 k) v4 t
5 |# T5 O: @) `3 J1 x; tset-plot-x-range 0 xmax8 e% l, v6 o+ @- s
6 r B$ w; X% l* }, S! L, b$ B
set-plot-y-range 0.0 ymax. U' a/ Q, p6 Q$ b# d
end" j/ o1 D2 y2 U7 `1 T' S
3 {' x$ I* N: d8 Ito do-plots
7 m( e1 t0 J* U. W+ \set-current-plot "Trends-of-Local-reputation"( H8 O2 y3 ?( q' O
set-current-plot-pen "Honest service"
8 i3 O# W- j k. \! [: F) h$ e% Wend
# }4 u# }" `; w( u' i$ |: P
) {: u8 a$ A9 q[ 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
|