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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5 }6 d7 H" z, Y" Q M0 m7 \& A3 t
globals[ t0 w# a) ^" ^
xmax
* H" {$ M6 p* D! bymax0 R' K1 R! ?0 O3 L
global-reputation-list
8 \( M6 T8 }0 K
9 I* u) H; ?# | g, z6 e! H;;每一个turtle的全局声誉都存在此LIST中6 `( C5 b3 t9 C1 q
credibility-list8 u3 W6 ?5 e+ S) T. g- F
;;每一个turtle的评价可信度
7 O9 Y8 _* I8 J- o- xhonest-service
* }0 n* t+ g! O5 nunhonest-service% r, ]. P) \0 U+ g2 p, E
oscillation
, E$ Z& c. ~) _! ?: O5 `8 Zrand-dynamic7 H1 I7 V; w: z; ]7 o7 ]# S0 D2 C
]
8 }; T& D+ n5 w- {8 ?9 w, y$ V- W- M2 S$ B
turtles-own[
7 q) L6 v, T2 z Ftrade-record-all
* L8 W# e" p n;;a list of lists,由trade-record-one组成
: f' }- o7 t$ g7 [1 otrade-record-one4 U; U! c: ^1 D
;;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 f8 q7 M) W! c( g$ u
7 o/ }" k' Y2 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]]+ r) U7 @+ s; R
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]+ e" r( Z1 }6 v/ {. b7 u1 ^' q
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
- k6 Z6 @4 x' p% H% l9 L, w# Hneighbor-total
6 L' U8 v* y8 U+ v! y;;记录该turtle的邻居节点的数目7 y, b# A" I+ N% H" [) _9 ^+ T
trade-time
, U% M2 g; w. H;;当前发生交易的turtle的交易时间
* _- G5 V; V- x) u. I( ~3 ~! }, rappraise-give& _0 A! q3 f/ C/ \" y; w
;;当前发生交易时给出的评价1 l7 V# X" Z% B# w
appraise-receive$ s# M+ P( {% L3 u5 ?
;;当前发生交易时收到的评价$ N( ^% L" m7 `1 x
appraise-time9 N( Q8 p* m0 F& l( `5 K
;;当前发生交易时的评价时间. l( j) s7 J0 K. k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: ~& k' }3 F5 s/ V9 B) p" \
trade-times-total6 S* x' V X" N! K% `. q* g
;;与当前turtle的交易总次数
: ^+ n3 L$ H8 j8 [4 v& Utrade-money-total
; E% g, \7 V6 p) B;;与当前turtle的交易总金额
- b* P: Y+ L! Q( j0 nlocal-reputation V4 @5 a" s( n; M* i
global-reputation/ l( r' G/ k! [/ j: i% f
credibility1 }7 _ L; K2 X. F! I0 {, t% F
;;评价可信度,每次交易后都需要更新
) }( Y `" R0 X# [! Ecredibility-all
2 x$ N2 F8 V% p;;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% T: F& Y3 q) n! s5 H7 b% K
- O1 K# J' F5 u( y7 T
;;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
/ a" G" N. z/ [( Tcredibility-one# Z* _5 ?$ H q# f- ?, g
;;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
6 e2 h# ~3 D+ mglobal-proportion( e. j% a2 X( Z. _+ N
customer
0 S! K0 q3 P M( Q9 f e- \+ ^. bcustomer-no& Y2 J/ P3 h6 M
trust-ok
0 i5 n3 c4 R; p3 ^* I, Ktrade-record-one-len;;trade-record-one的长度" I9 u: i* k2 I$ p5 }% g* B
]% C6 D& |; ~3 L8 @ K! p
0 s0 L: r2 r) @7 s! S y5 p) O; _
;;setup procedure
- ?6 F: g+ L2 H+ E8 a, O# V. h- A7 z2 u# [
to setup
- P' K' b* u$ O) q3 z: [. O8 w9 _% h% J3 L9 \, o
ca( T, T9 j$ ]% a" Y) ?
b" a8 |, n: Y; S8 l+ c3 ainitialize-settings
; g9 ~8 T8 }8 R3 \6 V" `4 L1 f# u, B& b$ F: n) {, l
crt people [setup-turtles]
u2 d4 |3 u$ q& B. j4 L. o) I+ [1 z5 q' H4 y0 ~9 C
reset-timer
6 u& m$ i7 v& U2 L$ s+ i+ F
- z$ b- \7 n: b7 j; ?% ?0 x& zpoll-class
( ]1 c% k: L4 }, ~; R7 Z; i* C. t" Y5 a; w2 \; ~2 X
setup-plots( Q: b# g0 u+ H. c' }/ s
9 R9 I9 R4 H" Ydo-plots
7 c( n( p- I" S% }0 Q$ Q, i: Iend
: {7 v0 i7 a/ [/ w! M- S; v, H4 w
. M* \8 ?0 Z2 o( N2 M+ V* ?to initialize-settings
6 U' J0 J) H f8 M7 d) W
+ s. b8 A/ F M7 R7 t5 T+ aset global-reputation-list []# n. c7 g n6 Y9 N3 s
8 N% C7 h) a: ]4 M, A+ ^; K, D$ f. Qset credibility-list n-values people [0.5]
. T+ I# v" H* [; k: o4 `! ^( ^* @& C( v' s' J0 z; U
set honest-service 0
! u8 b! O! @8 S& w. n" w, O9 ~$ @
set unhonest-service 05 r. _1 [% c, k, r4 X
3 }; S! R' |6 n% y9 S$ ?. X- qset oscillation 07 J9 Z5 y2 `! m: T8 i: R" V
4 u, f; R8 L3 d: Wset rand-dynamic 0
; ^6 t; w" Z7 P( I+ O) {7 tend8 v8 ~. o! D4 n/ {$ }
# H( A8 }) O' L3 ito setup-turtles , u4 I6 |/ B. s# S) K7 A2 C
set shape "person") V/ D- r" r" n* z
setxy random-xcor random-ycor$ w! |' y" r8 x) t2 T
set trade-record-one []+ |& _* B& o7 y6 k
2 L1 b; b6 D& L5 g. A: R2 ~set trade-record-all n-values people [(list (? + 1) 0 0)] : h" R: z2 L' G5 F6 T! m+ ?6 |0 B
( r) D- a/ l7 T9 I' c! p% Q9 Qset trade-record-current []
7 E' i6 s, a3 cset credibility-receive []5 d2 Q0 n, m I
set local-reputation 0.5
! s3 o3 H: s- a: _set neighbor-total 0# J) b' S3 h5 b( _& D6 c+ o' D. ~
set trade-times-total 0" a% K# h4 |% J
set trade-money-total 09 p" V: a8 y& u
set customer nobody9 [: P4 J s/ h( V: z
set credibility-all n-values people [creat-credibility]
- S9 J+ `4 I( t4 {/ Uset credibility n-values people [-1]
) U2 ^) u0 s' J/ j9 l0 U: iget-color
: G- |, k' h q* j* v3 Z6 S
- K. f, X S+ v; y( ?end
& f7 d0 j' r5 X @2 n. P4 }& c" E4 U7 C
to-report creat-credibility( y ?5 i! D9 ^: Y+ }
report n-values people [0.5] T. t1 G( e' t
end& @0 q% B$ H# {& Y
6 y, z- W- L6 p/ r8 }: a/ o# sto setup-plots6 ^; }" W/ C) F
( E$ s+ p8 a# Fset xmax 30
$ s4 T& R- z+ X1 a/ j I) L/ c+ h* N- ~# u ]
set ymax 1.0
; H% @9 \5 W3 s6 |
" F+ T. ?: e0 uclear-all-plots
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0 H/ m' l+ O( \' h& Csetup-plot1
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$ \/ g) Z, |0 S- M5 H' @! ysetup-plot2& ?9 ~" q8 c5 Z* I4 w2 R
2 u- e' _; v! U: \7 b$ e d6 O4 B9 p
setup-plot3
# B; }! M* G/ ?# B" oend
& v0 d; f; M6 V6 Z* i/ @2 w7 u) Q
;;run time procedures
! m' k& B9 n7 l( U& G, c" H" S- a1 b3 v# Y6 L I" l
to go+ s3 i& D+ f6 e# m
& R5 F) N1 c4 V. s+ iask turtles [do-business]5 b, |7 K9 c) q% O$ T
end
+ t' q7 L4 k4 z, q; N2 G- ^ B
2 k" ]: S* M, @* pto do-business & ~: o5 e! J) \. H/ R
9 h, [$ m/ Z( U1 E' @) D8 r; w% K0 ~3 p. B' v. \
rt random 360
S6 U Y& c v) Y6 b
+ I' f$ l! x) d( G) K! {fd 1" p, d8 D$ _, S
9 D4 f6 a* B2 Q# L, Z; s: Q
ifelse(other turtles-here != nobody)[4 O2 C% b& G/ N# Y# t8 I
! ~$ [5 m t1 k' S, b" s1 L' z
set customer one-of other turtles-here0 o( V- [) Z! G: v1 f
7 W) U' I! ^: ~3 n2 c: H+ ?6 O;; set [customer] of customer myself7 W2 V4 i- e5 q* G: g+ M3 |" {
9 b) k2 y, g3 q$ D/ z+ j
set [trade-record-one] of self item (([who] of customer) - 1)
6 \9 ?% u# r$ y+ X[trade-record-all]of self2 s: [. _1 F$ E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) U8 ~% N$ S/ N8 j) H6 ?* l) L! h% ^: U6 N; s) ^. \' V
set [trade-record-one] of customer item (([who] of self) - 1)
D5 e# z( A/ P3 v c[trade-record-all]of customer. A( E5 e$ F- L+ S( u
6 u6 c4 h2 {, J9 j2 _9 ~/ _4 b
set [trade-record-one-len] of self length [trade-record-one] of self
+ j c5 z E0 {7 f
- D+ K, [* @( p7 A. tset trade-record-current( list (timer) (random money-upper-limit))
& j/ p& u# d" }9 q9 p* U- a5 l
) H0 d3 ~9 P( R4 [5 [. A# l5 F. mask self [do-trust]3 l- [) F( l# R2 ^0 J' Z
;;先求i对j的信任度
+ Y c: Q6 v, P6 D1 T, h+ v6 p( M" z# Y+ D( @7 B
if ([trust-ok] of self)/ c8 ?( d* `* X" X5 p( ~! a( `% r
;;根据i对j的信任度来决定是否与j进行交易[
3 r S q* v" s; `ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
# O! r E) `1 \2 x _+ D7 C: \- i( n# k n* N0 D
[
" R% S- H$ y3 y% P' W
* J# D$ A6 v7 d. g4 L8 ]# Tdo-trade F0 k$ V4 {) K5 e- v
( y( w! O& K0 x4 ~5 ^' `* S
update-credibility-ijl
7 F. |3 C+ l' l) C1 _1 F h. M2 d6 z t& Q2 j0 M3 s$ n/ Z3 G
update-credibility-list
: _1 t- z9 ]0 ^2 Z ?8 ?
4 S V n j1 Z5 m' N- G4 ]& }3 A7 p( i
update-global-reputation-list
! A% L6 l- P) e; t
* S9 T: D* S: F3 G3 S% Q& Npoll-class3 I+ n, T3 x, e4 O0 I
6 B' T- p9 i+ s) ?9 y1 H% h" p6 U
get-color) x* @1 b; g! i" a$ I9 Z/ j: h8 G
" B( o* a! J' ^; q2 Y" g }# @
]]
$ N" `1 E! S: }' A. p
! B# h$ ~0 a4 [1 b: h. K6 R7 G;;如果所得的信任度满足条件,则进行交易* |( v) _6 b& X% h3 R- Q, u
7 U7 S+ s, r9 E; u5 q
[/ N5 _' W9 m. V3 J, f E' g5 l0 k
6 }$ @7 q! O3 r! F2 n% Y0 g) ~rt random 360
# U( y. R+ a# h! L. |9 @7 q1 s: E/ y& p- J! {0 R
fd 1
) X' ^+ l o+ E# _! i. i- ]6 H5 c4 m9 D6 g. ]( s0 \4 ?: |# M
]
7 h* y3 o9 N8 j0 {! K. \
7 K, T' \& l& r9 T( Y3 M% zend
$ v2 ~) n* H8 z1 l% e, H* B/ |: U( ^4 U; _$ f. j
to do-trust
8 O U, R, f5 v+ `+ Q& k$ Vset trust-ok False
( q* F( [4 L, w0 ?* {4 }; x1 g/ ?: j% R& F- x- @5 R' p3 _
6 B: l, j$ V5 @( s! Hlet max-trade-times 09 _0 m& l& ~& x9 y! |! c/ S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" a. J% \ ? Q' c' t# xlet max-trade-money 0# f& `' Q( r! U0 k2 G
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; Z; z6 `5 ^8 `5 J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
1 p+ Y( r" ^) c$ G( N% r7 ~5 w* p* s
4 G3 }3 I3 K# g2 M/ L l% R' y0 Y& B8 K
get-global-proportion
; [* F0 w8 w& `let trust-value5 \" m: O% E1 ?% 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)
: n7 _1 T+ z& B- Y9 cif(trust-value > trade-trust-value)- g( _! a- x+ n$ B) s; D, Q0 t
[set trust-ok true]. o5 ^& w( s; V6 _8 q3 _7 f
end6 Z2 e9 }8 i. w0 B
5 X0 x5 f2 R) O: p$ s9 Pto get-global-proportion
, j' s: {+ F* P7 l. w( Aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 H0 A1 K; W' d
[set global-proportion 0]/ e, p3 N2 R1 X2 d
[let i 0# Z7 w1 X) o0 y; K' x
let sum-money 0- P0 G* @0 Y% m9 u0 D
while[ i < people]
; q$ X$ t% K6 p[1 b" |9 t/ Z5 n/ X" O, G+ Y `) {
if( length (item i9 M L. C6 E3 n. y r9 }. w
[trade-record-all] of customer) > 3 )
0 [4 ^+ ^ f( W7 _7 n6 t[
# k v/ e8 a; o0 Q1 o( a2 v' M0 iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& x' \, q3 |; n9 X! L, [2 C$ g# o], O4 Y3 X, y5 X7 G) g* D! {
]
* n+ B% M3 ]$ n* s# ~/ `, I2 plet j 0
) [8 J) R9 Q8 N. W3 v) l" vlet note 0: f" Q5 l; @/ G0 y, d
while[ j < people]: B0 e6 K1 X9 J9 c% p2 L% ]" a1 O
[% f/ T" Z. L/ L! a4 z$ |
if( length (item i$ P# V, p' Y7 ~# y$ x8 s
[trade-record-all] of customer) > 3 )
4 J, c- V. H' ]4 x5 s[/ p( c( v, h( [; V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% d+ E; r" w' S, ?5 g( E8 g[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. q1 ^' c+ B, O! e+ a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 d( i& \( ]# J1 m, c
]$ I* F8 q, {* ]$ t" d% E' p
]
. {( `) U9 m: `5 g. v( \! M9 mset global-proportion note
' Z9 d) m" q7 @! S+ n- d1 v]) O8 H3 t- d6 |
end
* T6 p8 V5 X% \) W3 F( _8 K6 P: n5 c6 }& O! ?' _+ j
to do-trade
& L& a8 S* s4 q) v* U# w. n5 C$ g;;这个过程实际上是给双方作出评价的过程
$ G( ^- m' y# C& D# Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, e, b4 O! M$ t1 D6 \8 }. Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 G9 f) G. O5 Q, A) T% ]
set trade-record-current lput(timer) trade-record-current. m8 X" w3 N" x2 G3 m7 N
;;评价时间* G3 n+ I$ t! U0 C: {
ask myself [# l4 m. L. ]6 y+ _# k( f% Y
update-local-reputation3 Q- X# }' T$ C3 B4 ~2 b
set trade-record-current lput([local-reputation] of myself) trade-record-current
q0 m& p1 \# [. F7 N$ _; `]
0 J/ x1 C2 [" cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) q" B+ j% {+ H. P! o7 C: ?
;;将此次交易的记录加入到trade-record-one中
0 o4 A1 @- t# ?# h$ M2 B* X4 P! p0 j& Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
d7 ~) q3 D) ]4 U; i2 F" O7 |let note (item 2 trade-record-current )& C( _$ R! Z9 }- w+ d+ U5 c6 {
set trade-record-current
' ^- N! g4 d. s4 G2 o- p(replace-item 2 trade-record-current (item 3 trade-record-current)); _; H" B: D( y* m2 f% S6 w
set trade-record-current: H# Z% G0 A2 D4 @: q9 ?
(replace-item 3 trade-record-current note)/ o+ X. B* J/ Q+ y+ P8 n
/ i! d6 C/ d3 |" {. H
; A# Z' d$ ]. Task customer [
) E4 [, [* i6 {7 oupdate-local-reputation
& x1 X7 L, d" y. h) H& T2 }set trade-record-current
b- h( m' Q9 Q- t9 W. ?8 T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' `6 s/ C( |( T/ ~; O
]4 A% Y$ y1 T( U' b- B
8 s- d; z9 g/ f- B5 f3 r, e* P9 x( _% f, o" K# |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% E' p: U4 f: H% K/ e+ @
# a& J8 A7 T* E! t2 |/ q6 u
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ \2 x; a9 P6 M5 P3 a6 |9 P;;将此次交易的记录加入到customer的trade-record-all中
3 t4 `" I/ n9 n; f Fend
* Y: o' K6 J1 ]9 g$ B8 n( B: n1 {9 F- b0 `: ~, C1 |6 g" R
to update-local-reputation L( A( Y# N' s" K1 e
set [trade-record-one-len] of myself length [trade-record-one] of myself
1 @/ I2 s% k& _4 E5 B
3 }/ s2 Z7 F+ X. ]3 i Q8 l" n' ^1 a& M; ]7 \8 B8 U1 p/ U( t/ g [
;;if [trade-record-one-len] of myself > 3 ; a+ S; {) A$ Q @
update-neighbor-total
. y: ]6 c: B7 G! [/ s3 y;;更新邻居节点的数目,在此进行& y+ ]4 d+ a9 @: M; n: |2 [5 X
let i 34 v! z8 ^& D& N7 B
let sum-time 0$ d! c; }; l4 i9 e% H6 [
while[i < [trade-record-one-len] of myself]% { ~1 {$ o1 q1 r1 P; Z
[- \- C$ v- a, b1 F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* z( A9 ]: @; M2 Qset i( |' ]# R' ?6 _* y# G
( i + 1)
8 f2 m, G% S' C5 K; r" v4 d) F! T: o) w]) L. ]6 h9 n/ |7 y- Z
let j 3
) r- l/ s6 t1 R/ ]$ A$ ]let sum-money 0( L7 V* a: b5 C0 E2 W9 T
while[j < [trade-record-one-len] of myself]
$ d; R6 b2 u, U4 f1 I- K) ^' v; s[
3 D9 H: [# x# h3 _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)
4 {/ R' C6 z; \set j
- L7 ?1 m6 Q2 y! l5 `& e( j + 1)3 W2 m* K* l4 J- ?# x4 G
]
* A# \" |) R6 ]& f& e+ [let k 3. p3 R: n% G: X" k0 {/ O& D
let power 0
q; `, E* q" Klet local 0
9 |5 e0 H3 r' D0 y1 x- bwhile [k <[trade-record-one-len] of myself]
) K( J6 M! o* ]7 x' G[
& g- r+ s, t# T5 Wset 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) & _ L4 q' A2 G
set k (k + 1)
/ Y* c. [( I/ I2 r! V5 C]
* b4 L# ?( F* iset [local-reputation] of myself (local)
3 B( J2 c$ G2 N( z3 Gend, V- R' Z' G% d- a. N: h
" q h y; W) _" Mto update-neighbor-total! q8 u$ n1 G) C s2 T+ a/ v
' Q& u c+ \9 l: k5 ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. r0 e( h p( I0 V8 |# Q
8 \; Y/ P( m, X; E) Z) {- f! F
, A, j& P) N" l1 u& U8 ~end& h- I5 `% p# ~' r& g
& o8 K l7 |/ x+ x
to update-credibility-ijl : K: r4 D4 M4 [; K/ r0 F
4 B; e; W! H) N) N* n;;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。' C4 X7 z' k; v; ^& }. @# D6 o
let l 0
0 E2 I* \& L' M9 x8 h4 zwhile[ l < people ]: K; x, A# b {! x# U
;;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8 a/ D. J' W4 @+ C9 F4 v- {
[# p/ V4 Y6 q8 d9 m( }0 ^! V2 M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 a+ y- G3 ?7 _
if (trade-record-one-j-l-len > 3)" K, C) T1 y7 K/ c2 Z
[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
2 p" H& B+ Q6 c$ @' P% `7 dlet i 3
( e4 Y4 a# v& \( D( j- Blet sum-time 0
$ E2 w6 _7 k7 {. dwhile[i < trade-record-one-len]$ y, t! v% r& ^: b- a; |' d* h1 {9 }
[
2 {6 j Y8 S mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) z9 l( A1 u3 t8 ^2 l4 Q
set i
4 K& c. F% [0 ~; |/ ^* T" f6 a( i + 1)% P1 i( k/ \9 _# j0 j% W
]1 N5 w0 y; u# n8 w0 U" B3 q
let credibility-i-j-l 0) }4 x. O& _: p" v, a2 {! u5 f) X
;;i评价(j对jl的评价)4 U- a: l' p! h) T6 ]4 L
let j 3
2 n" v w5 F! H* x7 F7 f4 [: O: V" Jlet k 49 Q2 X$ k# V) \5 t h+ G
while[j < trade-record-one-len]0 B `5 j6 f$ a% n) R
[, E2 G, T) V2 U
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
* Q; @2 G& q1 z: bset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
3 C- p$ O* H9 I# z S$ |set j& _8 Z: j# e* n o2 ~1 Y" u! Y
( j + 1)9 _! ~' D% g- D0 u% E/ m. m
]
& F3 J1 ]* M1 P5 i3 h& q% U; fset [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))7 T7 L( [7 l' U! P. V0 r
G1 `4 Z) H5 r' j& T, D$ W; n6 V- l* `! j. h9 h( F
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 T( q: L5 k O" b;;及时更新i对l的评价质量的评价
7 G {) C" P, ?0 a: D, {set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. r4 S6 Q7 G/ K: ^8 i! H! u8 A8 {0 s/ Jset l (l + 1)
' r" G2 n L& ?- []
5 @' }8 L9 h; I) G2 hend
8 v: w, b$ D( V% \/ `+ `2 e: z$ s, e; ]
to update-credibility-list
* M$ N! U( N' g$ Glet i 0
. b+ x2 ?2 k; M& Z1 S rwhile[i < people]
* _0 ^9 U1 L X) X6 s7 l. o% \) P[1 @4 p& Y, `8 F( ?* ^% O6 w
let j 0 y/ B$ g4 ]2 ~/ x
let note 05 T/ Y2 j' K4 P4 \
let k 0' f+ D, v* E5 f2 p( O
;;计作出过评价的邻居节点的数目: _" u. S$ h: Y4 D* @% R
while[j < people]% [, W, C5 E# Y: z# K, V2 P" t
[
. S J: r8 k8 P) B u# M- c; n1 H6 s/ h5 kif (item j( [credibility] of turtle (i + 1)) != -1)
; p% M) y8 u2 ];;判断是否给本turtle的评价质量做出过评价的节点8 E. P3 v- n/ ]5 [0 F7 D1 z
[set note (note + item j ([credibility]of turtle (i + 1)))
% F( }% B: i9 s5 h$ p/ ^;;*(exp (-(people - 2)))/(people - 2))]3 h8 J5 G) {6 w0 _8 ]2 m
set k (k + 1). [+ u. a) w: O; h2 b; U0 {
]
8 N( T% c. Q& P) l C4 y, `set j (j + 1)6 O; o) ~$ Z2 J) a
]- c# I J4 F4 r7 C4 }% s
set note (note *(exp (- (1 / k)))/ k)# a$ w. H0 x4 `( W0 w/ Q8 {
set credibility-list (replace-item i credibility-list note)
! e6 y& s) a4 \) vset i (i + 1)1 p7 L% Q( K: J# b) D$ x
]
! u9 r0 J; F* Z; [end% o' G9 _! U* o1 z" \8 o
4 F- ?$ I2 a* E. ]9 K- Xto update-global-reputation-list2 `4 s. i" J: o! t2 X1 q3 G; V
let j 0
! A1 m& B* {% _) U1 Iwhile[j < people]1 R6 o1 v4 l9 ~4 t {$ |
[- g1 A' f( j$ H! V* i/ q1 |
let new 0. b, C2 n- _" x6 U
;;暂存新的一个全局声誉5 T6 P) w2 U+ a
let i 0
" e* s+ c J# K0 ^& T' V, M( llet sum-money 08 X7 R ]: s K v' J, j
let credibility-money 06 ?9 r9 z& S7 e2 n! H
while [i < people]
# v' ]6 W. t$ O J! y% ]- ~[* A$ O) n9 ]* f" [. \5 i' d
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% d9 `8 n* t' j" E& I: h" iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( k9 Z4 h+ `; P$ t' j, D
set i (i + 1)" P! e, p2 L7 s2 ? @7 c9 H
]
7 p# j! x( `$ l8 y! F+ n4 _7 f6 _) s e5 rlet k 0
4 E* `, L/ O& j% z6 p2 [let new1 0$ `: \* D. P0 s. s- i' `6 B
while [k < people]: E8 o/ [/ O9 A& \* V( A0 I* ~3 H
[
( U8 e; I7 P; e" Yset 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)
. r; [9 _' _2 Y# I8 _. |3 zset k (k + 1)
9 N: Y* [+ r' R* S0 x% W$ _$ A4 i/ p1 M]
% `$ I8 I+ L& `6 P( K0 G7 Hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
f; }$ k( R9 W6 \9 {set global-reputation-list (replace-item j global-reputation-list new)
- ~. G, a6 R0 l8 C( r3 k7 Kset j (j + 1)
6 c" p* w2 E2 z% b" Q( z5 r$ F]
{# h" r+ x- M* f, E" o. zend) Q+ W7 D' g+ ]( Q
& h: C& {6 p8 A! a
' V# O ]# _( s8 @' `; o% s' v3 m( _1 N0 ? l) V0 g
to get-color
& A: n2 ~( A' C! |( z' K1 t
/ [2 h+ I8 Z; g, H, _ Y2 Z- _/ ?set color blue& I+ S+ ~; H) R4 a D* r' {
end
N3 p; c" ?+ S8 D3 v- H; u% }% k# }+ r
/ q& [! R! t( E3 M9 B" xto poll-class1 u' k ^2 q6 }# l: i% d4 ^
end! `1 t( C. w5 F9 f- X
4 i; j+ a7 {. S* [2 q8 f: T
to setup-plot1
+ N% H4 E9 F1 @. R# Q, b( d1 R; r4 S C3 Q$ d. o' J) p. `) [3 V
set-current-plot "Trends-of-Local-reputation"
: G0 Y6 w+ J7 i8 Z
! j9 |: M$ J; x3 }! Fset-plot-x-range 0 xmax. Z3 Y- [% Z; i- n3 y% s
5 {2 B: e+ Y: ?" [# R
set-plot-y-range 0.0 ymax+ L" B! a" M' j. u9 Q" H! W9 R
end5 h+ C0 K& L* `. Z" ~
- ]( Y- D' j! E( {
to setup-plot2
( Q( C' `3 ~7 Z3 }4 ]# _5 z5 R$ E* T# E+ W% H9 b* i
set-current-plot "Trends-of-global-reputation"
6 Y6 F( C8 Q) X% z% D, ^) E" {4 [$ O" y# _2 X& L
set-plot-x-range 0 xmax+ u. j6 O3 h$ d6 V! z3 D1 y
4 L) ^$ o& E; K) T8 x2 iset-plot-y-range 0.0 ymax" i$ k, x2 L2 R9 e, `, H
end
f$ M6 i1 }' k7 D" Q X: p) c4 B1 d# u) d
to setup-plot3# S- T# e& t _0 A2 q( [( j
8 i# _& h. ]5 Z0 W
set-current-plot "Trends-of-credibility"# W5 E+ L) U' T1 h
6 k3 q$ y$ \0 zset-plot-x-range 0 xmax% l- s9 {# i0 ?" K
5 v- n+ K: C7 Vset-plot-y-range 0.0 ymax8 @9 y+ T9 g3 T
end
$ a/ m2 d+ k' g' P% q1 h& @6 V# d; I7 U$ A, C5 }" ?
to do-plots* e/ m4 F0 p- A$ W0 w' |8 ?
set-current-plot "Trends-of-Local-reputation"
5 |/ h8 J( [/ K3 P) F" ~) H5 aset-current-plot-pen "Honest service" F X! K; u" K5 {' E+ t
end
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. e h9 _& z \- k! G$ ~5 V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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