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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
6 Q) r6 n& T% G; B% Y1 E, { U% vglobals[
. Q2 l* {4 X/ p+ }xmax4 }" n# ?7 `5 p' u) i/ W5 M
ymax
1 h c% I3 v% t1 zglobal-reputation-list
$ x6 S9 k3 @+ H( I0 g' ?) i+ I
0 h4 C- m0 ?6 D) V;;每一个turtle的全局声誉都存在此LIST中
( G* g# J* J) ycredibility-list
( H- d& S# L2 x5 Z( D. B0 T' W;;每一个turtle的评价可信度
0 a# F" E- O3 w- e9 t; J" ~5 vhonest-service' }9 u4 B3 _' X# ]/ _' L
unhonest-service
5 p6 b' Q/ f/ Z+ ^, |' ^oscillation
: U: S: e4 H- [! Irand-dynamic
1 ^0 W+ A: ]& N+ s]
9 `1 k5 d! c6 h4 ]- N2 }; b) f' R5 J. y Z7 I% Z
turtles-own[
' K# A9 X4 X9 M w' U( Otrade-record-all7 S7 z1 \3 r# x' h7 m) d
;;a list of lists,由trade-record-one组成1 Q; G: Q: F' G' U& k( i0 _) @$ [
trade-record-one
4 i7 [) k& e/ s5 z+ U) t;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: S6 ^9 x- b: C8 o+ }# E+ w
7 ?/ W" M! j* N7 a;;[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, J6 o8 _+ v
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]
8 p6 X% }: K: i$ m& Ecredibility-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" G& s8 @, m) y! l1 B% X
neighbor-total; S0 D z; p8 \7 N0 W
;;记录该turtle的邻居节点的数目% _6 X( Q5 m1 `; E: Y
trade-time* v3 ^9 K" @- _2 L8 o. C& m
;;当前发生交易的turtle的交易时间
6 }/ J+ [$ G, y3 u$ p iappraise-give
5 |+ M. V$ j: p;;当前发生交易时给出的评价/ x- k+ X3 [$ w! X0 g1 F9 z* F+ I
appraise-receive6 p+ Q, T& b& V. e( D, o- Q
;;当前发生交易时收到的评价
6 b; H- ~( C5 Z: e) N. tappraise-time" u3 R1 P5 |+ b5 k, Z
;;当前发生交易时的评价时间5 B9 ?: x, z2 F5 H% U
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" ?7 N) y" D" J3 l% y4 Ytrade-times-total
: H' d! y) k# }1 U+ W8 `( l3 ]' W3 d3 r;;与当前turtle的交易总次数5 ~% f2 R) s9 I+ o% n: w: P+ ?
trade-money-total a+ X2 Q+ w$ M) _- _+ o& ?
;;与当前turtle的交易总金额
' Z+ @( R" F1 N. c/ l. O# }local-reputation0 W# X& N$ z$ h+ K1 d# P, B
global-reputation0 y" v1 ?1 A' R) K4 u, a
credibility
0 R' j" {8 r l# W;;评价可信度,每次交易后都需要更新
# Y w+ G) J, y+ B; d5 i2 q1 Ccredibility-all* \' l( k! ` ~
;;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" V5 v U' \; H: x6 K" U/ N
, @: a# y0 t. i4 D# s3 D;;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0.50 v0 q2 D$ I1 |. }9 I; }
credibility-one' w8 z& h: \' a3 n1 ~/ e# X
;;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
" h& O' |1 z( s8 oglobal-proportion
" J' ?. w) g2 a ^customer- A& ~/ `. P' D! A H
customer-no0 K$ s' ]. S: S6 W) Q! |
trust-ok5 I7 `5 R M5 @
trade-record-one-len;;trade-record-one的长度
+ Y2 ~5 x8 l9 h9 _! N]
! f( {0 }4 n: L y; g
1 k' V3 L% F! f/ {7 n! u;;setup procedure
! f! J# o4 R+ [$ \8 e# _5 U* O& l4 e" j; [, L5 T4 w
to setup
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' d6 @5 K4 s3 T1 dca
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- c8 K0 ?4 m9 ?& w z4 R0 ~6 qinitialize-settings
/ U |- }9 b2 A O1 y8 h# j: C: ^" Z( G' ^7 n
crt people [setup-turtles]
( m5 G# @9 d& X( l0 }) a3 T9 T5 p/ x" o1 `+ k) K" {# V
reset-timer
5 e( ^1 \$ S; ^0 f& b; @% S' J% T f- `
poll-class% n! j m( n( F2 A8 }! c) a$ ^
# a- Z4 r& X& e& R0 R
setup-plots% R# i- s0 K' [
. o; A$ |+ u' B: D: E
do-plots6 H$ Q: m/ O/ d% N+ Y4 a4 N7 S' g
end
1 |) G: I4 I) X6 n1 D& J) u$ c* a! }6 _$ x$ |* K. |
to initialize-settings
' I* f: m5 {4 ?, p9 c/ O5 Z* n1 g4 N( i# J/ K& E# ^" ?. i& A
set global-reputation-list []
* A& Z0 z- r+ {' I! S O3 S( V6 u
0 U! K% G5 p. u/ ?; o/ @set credibility-list n-values people [0.5]
# z5 z! \5 X. v; q5 d0 m6 v# k' C/ e/ T' B O3 t3 g9 y+ A/ T
set honest-service 0$ n0 ?. A; D! j' r" J
1 z, ]" C" ~4 j5 ?7 G5 v
set unhonest-service 0% R9 @6 ^5 R4 v G$ Q
+ i8 w( R6 i; l3 s
set oscillation 0+ w0 @5 d- `3 @! [8 A8 N0 h1 ~7 X3 Y
5 P b q O0 s. Y! _4 E# Q
set rand-dynamic 0+ } F$ R! Z: i3 V$ d
end
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to setup-turtles
/ p9 r) R3 z4 n1 [9 gset shape "person"
6 ?+ U' `. E5 E% ssetxy random-xcor random-ycor6 E& k$ G, b4 }. S$ H4 B
set trade-record-one []# j3 \' R' }4 b ]
( P, K3 _7 m8 M- ^) j0 U4 Fset trade-record-all n-values people [(list (? + 1) 0 0)] $ {' R( S2 s) k' m; W
B7 X# ^" r5 R" q
set trade-record-current []
4 T6 M( h# c8 t* {) L$ _set credibility-receive [], H, b: a7 m7 W% U- F& @0 t- |1 R. T# w
set local-reputation 0.5+ O. S& v& ]% ? E
set neighbor-total 0$ j' t2 i9 p5 f& g' ?4 [
set trade-times-total 0# \1 O2 [3 H2 m& } H
set trade-money-total 0( ], u: m3 n! j8 M; a
set customer nobody8 M J, @, M4 b7 }
set credibility-all n-values people [creat-credibility]
" v3 K; L4 {9 o: l1 k& t. X! Nset credibility n-values people [-1]
! L3 e: L! u: W! M8 U' jget-color
- o4 b2 F% y3 h& y0 }" W4 j, B% ~7 r3 i0 r
end
; C& M& l! l" N9 o
0 ~* X/ k6 r+ W( y _& y& [to-report creat-credibility
9 |. u6 \8 P p' h9 q- Preport n-values people [0.5]
" @8 e7 e; P, c6 E- T( Vend
4 n+ V) Q8 F) t- R6 {1 y: i) q2 @/ N1 x2 `: r, D
to setup-plots: G) q& z& H# h7 h5 e
- ]# N1 s4 o4 [4 e0 x
set xmax 304 c; j( F* O0 ?0 u4 W
8 z; ]( P7 i0 j8 Bset ymax 1.04 L: k, T6 v) e1 Q
8 {# X& V7 { ^$ K" `6 g8 v2 t' O
clear-all-plots- G6 q/ s" s( O
4 j0 N- U/ J. g& d1 e4 f
setup-plot1) z' p& w+ B3 D6 _/ Z6 m
+ B4 F I% L1 A
setup-plot2
$ _! p3 ?/ x- g R% k# |" V0 `
, U/ E9 M: }% }4 }/ [setup-plot3
" U* `" l: X9 z# ~, Q0 V- `end& j% w3 P1 z$ ]% u2 L& w9 d1 R
/ ^* H! q! }% h, h4 r2 m
;;run time procedures3 G' L7 a% t8 q
# o9 `7 X* j E% ]
to go
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ask turtles [do-business]
& v- }; ]8 @! s+ v- ^+ ?0 L; S6 @end
; \$ Y5 v% n4 g7 S
% I: l- p' w8 y% B0 sto do-business $ a2 y' g% k' U, o! `. h* N
h! z8 G9 \* ^) X9 z( t j3 V
' g, U: G }: Trt random 360! |! x7 M: u# d
$ f4 f8 _& [1 k/ V0 y2 w) E0 I/ r
fd 14 y9 d0 l; m/ [) i7 ]
0 V" n$ m/ S# A7 a8 Q# Wifelse(other turtles-here != nobody)[
# ~7 v4 J- p5 c0 N% z i9 T' i2 Z! [1 e5 Z: H2 m i
set customer one-of other turtles-here% i" U" K! f4 v) B% U1 s3 ?( @! z
4 r# u* }# P! o" S& |0 i;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)- f2 Z: t4 \& M, r6 G0 D
[trade-record-all]of self8 }. R/ ]1 C6 c- N+ s8 a& X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ q5 ~: r3 B# W6 a: N
* k4 Y& S# j1 O5 V/ Dset [trade-record-one] of customer item (([who] of self) - 1)
- k; o$ X- P8 n, @# {[trade-record-all]of customer8 O {. s3 @6 `
- N4 D8 j! w, b' V+ Cset [trade-record-one-len] of self length [trade-record-one] of self
% R, K* v/ y" k6 W: Z1 G
6 Z; f- S: ^( i8 @6 Z& [set trade-record-current( list (timer) (random money-upper-limit))
0 S. g. o$ s# i: Z$ W0 ~6 V/ ?! I1 Y8 ?0 Q, M) \
ask self [do-trust]
! _- U. T3 J5 o& d4 ~;;先求i对j的信任度
0 @2 Y V# D9 t
- l9 W r$ n1 mif ([trust-ok] of self)
4 \0 p0 k9 v7 z+ L3 B2 w;;根据i对j的信任度来决定是否与j进行交易[
/ T/ Z- V2 O1 f' k1 Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ A5 V& A1 s2 G2 B, |
" l1 I/ h- G- @! T' c# o[
/ m+ J( p! n5 R$ G- L7 E
6 B' x4 ] n' \. bdo-trade6 G! q+ {' ?6 N
# m! Y. Q( x& L( q2 J. pupdate-credibility-ijl' Y! w o8 w1 w: s
$ ~9 r8 g0 @. p5 \. ~update-credibility-list7 c. g" g+ x4 t, n7 t# l! ?/ c
+ D; j; A" V, M) _- x& A2 @% U& e5 O
update-global-reputation-list
+ ?6 t1 }- y: _) @2 ]0 F* x3 m2 q/ ^, c# k2 O9 q9 J. [
poll-class- D% y" O' a m7 \. H; x( n
) U( I" x( f$ K9 ^/ wget-color( E$ M7 X6 z6 N2 x
' f" k$ ^3 N% {]]' `3 _) Z, t9 D+ n: O
' C( a0 u! N2 X$ K# x;;如果所得的信任度满足条件,则进行交易/ L c0 H0 O5 m! B/ ]
* }* Z; u; t7 a# R
[
! @/ h H& B, @+ p4 Y+ i6 R
3 J# r- [/ w, P$ A/ ]! O, Urt random 360
! f$ h' q2 f R; V) c; y/ K) q2 A# o$ [# y1 a) Y/ W6 s1 }
fd 1
# t1 S% G( @" q7 I. S& k6 F7 [) X |2 P4 Q; e" `$ V# I+ ^4 _" P' S
]
- B! R# h: s b& W; m0 q( H& @/ P) m6 w3 R
end) E+ z: v& V4 R: X
. ^, d9 Y8 e1 t- Y5 u- nto do-trust " _! ]% S! X0 Q7 M7 `! E" `; o8 J+ Q
set trust-ok False- Q* A- D( ~& [* q$ b: s D. y) `: k
* ?4 r9 b% Z7 h' J, B4 p6 ` [
let max-trade-times 08 C6 k! ^' N6 u
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* J+ A/ c) H# B* Z/ j* Q* E; [let max-trade-money 0+ n- ?. U. `: R1 D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 P, L2 C+ ?% N) G plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 R; [+ l8 p6 B( D! [( ]
: {* N" d' \1 j% ^5 }/ Y! c' |
1 S7 }0 w' z ^- o9 Z d, @7 W
get-global-proportion; @1 H/ L" `% w
let trust-value. }1 f( N1 s1 b* Y; I' _
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)
7 r8 c) F* l2 n4 _ ~5 n% L& o9 Mif(trust-value > trade-trust-value)* ]* q- E! f0 y; \ a' i
[set trust-ok true]$ r! c+ _1 ~: p5 k
end
9 ?- M' Q x& Z0 L5 @( R5 |6 t- [! j9 x
to get-global-proportion* ^0 T( J5 Y) N0 k& w5 X7 Q1 b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 l' l6 w; n! ~& h$ U! U[set global-proportion 0]2 w6 o& I* e, u W
[let i 02 E2 P! K# |9 l
let sum-money 0
; h+ k6 B, k3 P5 g( W. ^while[ i < people]6 l8 {2 f; v/ G+ d0 e5 M
[ X$ Z) s& [4 [2 P% w( u# o6 t
if( length (item i- x- V( e! E. w$ j7 J
[trade-record-all] of customer) > 3 )# }9 S+ q. \9 R$ P6 ]0 T- B
[8 F9 b0 A0 _/ K8 ?, [: @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
t: d. C" {! m: Q9 ~/ J1 a]
) e& n. a7 f1 d* {: p1 O( v k. {]+ F4 [1 l% Y+ D$ {' w4 h% E
let j 0: L" h- B* ~) u- l# _
let note 02 `. y7 {. G: O; c2 V) y% F0 N
while[ j < people]
5 v9 e B2 c s% K4 M3 G7 D[0 q: `* M# p2 f9 `: q! _, q
if( length (item i
7 c p2 x2 g) W% y5 N; Y( F9 ]) k[trade-record-all] of customer) > 3 )
1 n: C1 w }. c: o9 _[ N5 b) J6 r4 g. i W
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
Z3 z1 ~0 G5 ?4 T t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! N3 S% F! h4 L6 b% y' u[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; d T W: l% e1 F3 p* |) ]) Q! B/ e# h]8 R5 u1 N+ m* i
]
4 L( i2 S1 N }set global-proportion note
3 ]2 |5 s) I) I( L7 g# h# d]- s, c( c! f6 G7 G- h3 k: u
end
0 O- e C0 J" Y8 L
# W) { X, G' A2 U7 m# fto do-trade
3 b/ w* I, r* c; i1 G- W6 b;;这个过程实际上是给双方作出评价的过程* M% j# {/ q7 S" h" |# V- p8 Y( Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 p0 P. a1 G& h5 @$ Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 D3 Q5 `) F1 w) r6 vset trade-record-current lput(timer) trade-record-current
4 A9 {9 K+ L L& j;;评价时间; J; {( z6 ~& F' K) ?" f- O+ K
ask myself [/ i6 x2 h: r z, s# }4 X
update-local-reputation7 q, y6 q" G) F
set trade-record-current lput([local-reputation] of myself) trade-record-current
* }" |! ~* J) ~6 ^]; q# R9 H; [( k9 Z/ u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* }7 K( M$ I& b. X; B3 P;;将此次交易的记录加入到trade-record-one中0 R x6 J+ ]" Z. S
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ N$ N$ y) Y* x @% O- c
let note (item 2 trade-record-current )
+ a5 w. e% C/ d6 Iset trade-record-current% `! @: c/ ~# c# l/ o1 Z
(replace-item 2 trade-record-current (item 3 trade-record-current))
! d2 b" E& y1 Z) ~5 nset trade-record-current+ C' A$ ?( m" z. \) d/ g
(replace-item 3 trade-record-current note); U8 M. \. a& X* K! t
7 R6 ?2 C0 }5 K) a5 U0 a) @
( j1 m6 ?* ?) iask customer [
5 e/ j/ f, O, }2 v7 O' f6 r* jupdate-local-reputation
, B: q5 E0 l/ p! Q/ |: o2 ^set trade-record-current
( b/ h8 S5 K; u' {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; p' a" F% x0 W R0 G2 d! a] h- \" Y$ Y5 v k6 A- W+ G
; l/ v. y' T3 |
3 F# a5 F0 {0 nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 k' n9 o H! G: A" \+ V
$ w) O1 s7 Z S) z* E. T
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) ^1 u: x i$ C( t) S# r3 j
;;将此次交易的记录加入到customer的trade-record-all中: _' E, \% I% @- j& f
end3 A! E5 O: Z3 d! x! E& f9 e& x. G
3 I1 r4 S0 K2 S) P
to update-local-reputation
. r G" O# }' g" U4 Aset [trade-record-one-len] of myself length [trade-record-one] of myself" \/ V+ C3 y+ b2 z
2 I! s6 I4 a9 n- v3 V: y; J) c6 Z2 M& ?
;;if [trade-record-one-len] of myself > 3 ' e# K3 z6 u) w, S) N' u
update-neighbor-total
1 R. @" _0 u6 k, x' f, e;;更新邻居节点的数目,在此进行
@* N2 j; Q* V* Z. t0 s3 flet i 34 s1 E2 i, K* Y& `
let sum-time 0
; }( [ c& x: g2 Y0 o2 dwhile[i < [trade-record-one-len] of myself]" y+ n; k; r) u1 O9 O8 J8 {
[) T$ H3 {5 h& o o# } @# F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 {$ M& m4 I4 Q/ g6 N2 R: Pset i
5 R* {7 n$ B; D. i" w0 j5 u: F' ^( i + 1)
* a2 x' I0 Z, {# g/ F' ?7 w]
f3 H$ T7 ?( H- K% H" f% Vlet j 3) n( A' R1 p: M. s
let sum-money 0: v" S, o- L; k
while[j < [trade-record-one-len] of myself]
3 X: s) v) X, S& f: l4 Z; @[! U c" @7 g3 j% ?# U8 }
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)
! R F* Y8 c/ F5 uset j5 f8 A' W# [4 \/ w: i
( j + 1)0 J+ c% w# c- ?* v4 [- @
]3 i* c) H* y8 P
let k 36 L' V; g4 Q% o$ z4 g
let power 0* ], ~& Z4 I' n0 u4 o; C
let local 0
: E( j1 H& E! ^! c6 U: a* T: q( rwhile [k <[trade-record-one-len] of myself]
4 W( h/ R6 S3 z+ D/ J[
$ d5 `! D. w cset 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)
9 m# G% R) `) [0 G" Z3 [, hset k (k + 1)
& b+ c6 O. k8 J& {2 c ?]
' Y3 Y* J* a" z# v3 q# t+ V$ Rset [local-reputation] of myself (local)
& @8 l$ w! D$ f Y; M# g0 C% Oend
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 A" n1 u( G3 s5 ~3 p% Q
( ]2 N1 A7 G2 k. w- }/ i
1 C7 h' K5 u7 l0 s, O/ F6 A5 s
end# ?9 l* x: l# z R
( U8 w* i4 x/ _3 \9 [0 G* w7 tto update-credibility-ijl 8 {* V: _% A6 j4 y+ e5 j- P- S
! z. K1 w4 ^2 m* U) ]4 j" v# S
;;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。
% |+ c: b7 l5 b/ F) E+ G6 G8 ?let l 0/ b3 o2 L0 V, g/ ]' u. A& ?: d
while[ l < people ]
, y3 x4 A# i% n: \$ i8 s; };;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 ~: r, U7 i4 `. m+ l[
' R; F) L9 h9 _" x8 ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer): Z* w: z, |# D3 H
if (trade-record-one-j-l-len > 3)
4 c5 K4 P( z/ G" k[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 R$ V, i4 f$ u: H: n" J
let i 3
; f( I5 `9 H6 Q" m2 O3 flet sum-time 0' U0 Y; T8 Y/ q+ V& u/ A4 |& P
while[i < trade-record-one-len]
! O# t5 Q# J4 S, }; O/ F' k0 N[
+ t+ U8 _/ p8 N2 V7 R* tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) O, _! u }2 M/ m7 j' a6 H
set i3 W; W5 F, h' ~( t; ^
( i + 1)
: O2 [, E7 s) o; z6 W3 }]7 v6 v0 Y5 z3 ?3 \
let credibility-i-j-l 0' n7 k. k* G- p) z6 [1 Y! O3 p( L
;;i评价(j对jl的评价)
0 y% o3 K( j4 ?4 i0 Wlet j 3
8 L7 B' Y1 `* \+ D( Z: Glet k 4
2 @0 R& T: @" t H- Y" K5 }2 u6 iwhile[j < trade-record-one-len] `+ W G0 y; W$ [! [7 U# b, k- Q+ \
[$ j7 A% U' j9 S
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2 K5 |( g: x* J7 T! a6 I7 V
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)
: ^4 t6 y1 b4 b! Z8 ^set j+ i8 _& P1 J/ s( r3 U
( j + 1); R. D9 Z5 M, b' q
]) ?* }/ G. N3 f1 Y# S0 H: t8 t5 K
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 ))' ]( ~6 _4 D* W1 J! J; k N. }- s
% X' J4 y6 M& [+ g% j5 X
* R- }7 I6 W. Q0 B$ k" Z6 Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), A! _; Y5 C& W+ i' q
;;及时更新i对l的评价质量的评价
- ^; P! J( ?) B% A) uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% K2 _! {( c) h: T4 Aset l (l + 1)1 [; c& O6 {" d S6 w4 v
]6 V/ g9 Y/ d/ `" Z
end7 S) I U; @6 o4 I, C+ t/ W
% S7 R) D0 m9 V& Y+ z
to update-credibility-list
5 ~" @" }$ u! j! klet i 0
6 C& J, p4 ?+ d4 S$ owhile[i < people], t& [- ~) s2 B' H$ Z% [
[
- S: I. H5 K5 }let j 0
3 X! R, d8 ~6 Y$ flet note 01 T+ B: Y" G9 R! `' y' }
let k 04 l8 }& X5 E7 i' ~
;;计作出过评价的邻居节点的数目* j! i% F" g+ }0 y% X7 g
while[j < people]
4 j& G& h- J; E* @[3 u3 P% K+ o) o& m$ l
if (item j( [credibility] of turtle (i + 1)) != -1)9 X; p7 W/ u' u4 {5 a5 F
;;判断是否给本turtle的评价质量做出过评价的节点( z( w& |: [8 U5 S0 K
[set note (note + item j ([credibility]of turtle (i + 1)))
& F) A- D- y O/ p;;*(exp (-(people - 2)))/(people - 2))]& u$ o: g+ M- k, i% V; b9 W) L, O
set k (k + 1)( E6 o/ |# {8 @
]
! P: f" ^! f" B& S) _set j (j + 1)
, c, U/ l. `7 {4 m]
1 b i/ s* p* p7 S& ?9 \set note (note *(exp (- (1 / k)))/ k): z) T. e# }4 Q
set credibility-list (replace-item i credibility-list note)* p4 h5 l' z5 Y h9 q
set i (i + 1)8 h3 D+ A7 l" E1 d0 F
]
4 i: {3 I( r0 ^: Zend
* {# g2 G$ h _, W a$ G
, U. r: e2 u p4 c2 tto update-global-reputation-list0 ]" C. ]% P% z" i1 R
let j 0
) p! @* U* v% z9 j. A, Twhile[j < people]
5 ^: v! F; `* u1 {+ O( B, c7 C- V$ I[
+ l! d* Z3 `/ Ulet new 09 l( p/ D4 @2 i _6 C
;;暂存新的一个全局声誉
1 T0 W6 |( [7 ~. z# h$ s( U0 Slet i 02 F% l, s6 T6 i t1 U9 P
let sum-money 0
- u% Q: f( h/ F, D7 Ulet credibility-money 07 M* w; k4 b4 v3 [3 j
while [i < people] J( ~# ^- l- o. O: f; A
[+ E: P; l0 u0 E3 A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 Y) P$ W) q# D' I" @, C+ d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 _# L* ^2 f$ _+ P8 Q3 F
set i (i + 1)8 t# A8 _ E8 k
]) U4 k6 A' d0 I; `8 w
let k 0$ f( y9 O1 T7 i* N. q
let new1 0# }- x4 o6 U& }" `% S( a
while [k < people]
1 `6 \( A/ i5 Y; {: h: V) y) n/ |[
# q, y3 o# y8 bset 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)
" u+ V R' V% W; |2 \set k (k + 1)9 c* M6 _* z n
]4 `4 @' }6 w8 k2 o7 m& _
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! E! t$ I- A2 P' e- Z! R
set global-reputation-list (replace-item j global-reputation-list new)
0 _, W& j r! k0 k5 |set j (j + 1); P8 T# d3 O$ p: @/ }
]4 N* d: C9 C* K: Y& c4 p9 C
end& M4 K1 x2 C$ \8 c4 R$ F9 G
$ p8 G' M2 Y1 a+ d# F3 U7 h* D$ T3 p/ a Z" J: K
5 C6 p# U# e9 v! P8 C7 C, _, ^5 u6 O
to get-color; e# M7 ~4 E! {: z- }; G, ^" Q6 N
8 m% U" X# D1 p( R) K! M
set color blue$ E9 Z. a; ]$ H/ K d/ Q
end2 |* `; t! I3 L( ^* }3 @
* r% W- z! H- M3 u1 u- x; E8 {
to poll-class
# p7 Q r% f7 F7 bend
6 o8 [: z( o; E) \4 `3 G: s& a9 P; v# u2 L
to setup-plot12 d8 e2 i' F9 c4 V
7 X1 ~1 U+ |$ B5 Y4 r& k& g6 Gset-current-plot "Trends-of-Local-reputation"
) n1 @' C' J& e1 q9 u6 s$ R. X2 ]1 Y5 K
set-plot-x-range 0 xmax
L( c. K& |: y+ x
& E- @! Q9 x) Jset-plot-y-range 0.0 ymax
2 I' Z$ e/ i5 k% J/ Tend% L5 F0 u5 Q' O1 w
% ]8 R8 E( h' L. c
to setup-plot2' v1 |) m- o ^! G
`/ y1 z# I, \( X1 gset-current-plot "Trends-of-global-reputation"
' r6 r6 f- x" ^; y% f1 p& c& B' e- {( c6 G
" F- z+ X( x! z7 n3 gset-plot-x-range 0 xmax* J% d5 _ B+ G0 ^
7 i' ~+ m. x1 v7 g$ l: Q# y% [+ e* j
set-plot-y-range 0.0 ymax: P; |, m D) D" e
end
: \# `9 |0 `* J2 Z
+ [9 @, O/ i, D, k) z. Nto setup-plot3
9 G5 Y7 L1 g1 H/ m2 P6 J" J+ g/ T' e3 v4 o1 ^* B) {! e: O7 O T
set-current-plot "Trends-of-credibility"
- n3 h+ N! w2 Y7 i; A# B) G
, N+ L S5 O# j& ~3 x/ Tset-plot-x-range 0 xmax
1 X3 w! a) P0 l `/ K; }" \9 J! _ i0 ~7 f" ]1 I
set-plot-y-range 0.0 ymax
3 ?6 D- A" ~. t, D, n% H. V& fend1 b, o; B& F9 Z9 e$ @
3 X0 X6 q4 i- r( r; e% q6 J
to do-plots9 G- V; P0 x: N% ~% z
set-current-plot "Trends-of-Local-reputation"7 `% Z7 D" g9 d1 V3 Y1 {9 u
set-current-plot-pen "Honest service"
* \0 y" _9 z% m% h6 i% m, Pend
9 ^: p# J7 K9 g1 A
* Q8 i* C' V5 E1 R) [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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