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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7 {/ G; Z+ O3 |
globals[
. [1 {' h$ {3 T* A( y- Zxmax( \) V' j- w! E i% [; ~
ymax
+ _$ g/ o: u# `global-reputation-list: ?# N5 c, G x! o$ s) \ t
- P1 O9 D# \* c }; s
;;每一个turtle的全局声誉都存在此LIST中
- |& [! r$ t6 P1 F1 a1 {credibility-list, H+ P! g& j6 q6 L# \& X
;;每一个turtle的评价可信度
! K3 F9 u) y6 bhonest-service
2 i' d* A! }' Y& T, Zunhonest-service
' |0 w, S' ~9 Ioscillation
! X, J: R1 T* trand-dynamic% k# O# F. H k2 Y8 t6 C2 A
]
3 X. Q$ z+ A% S( Y- Y5 j! S e! T; N% y+ C2 A& n1 h
turtles-own[/ {% T$ H) K9 e( C" A
trade-record-all
0 n! S! T, H$ l8 |% @$ a) T;;a list of lists,由trade-record-one组成- D/ }# P6 g9 i# }# F f8 a: Q4 c6 J
trade-record-one, K1 N! T, l1 U/ q$ ~; @9 I
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 [, F$ G/ J/ ^& g6 Z+ e
0 ]: T5 H j3 k6 ^" 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]]6 {+ c* q1 }* x; 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]
' S7 g! o; G7 f! ?' 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list6 m7 c! g9 w) F6 m/ t
neighbor-total
# Z) B* }& `+ k# l- y;;记录该turtle的邻居节点的数目
9 N0 x$ a1 a1 P6 Btrade-time
2 ~4 `5 I: J# F7 X0 N;;当前发生交易的turtle的交易时间
8 G4 }6 a& S0 Z, j1 e' g. x$ rappraise-give
, v1 p4 v3 F: Y7 G3 M;;当前发生交易时给出的评价
" t$ v/ }6 u9 I' Bappraise-receive+ p' O0 j- Y& c! o
;;当前发生交易时收到的评价0 |6 @ F2 H& `
appraise-time
. q% n" d* A" K- Q9 O9 u;;当前发生交易时的评价时间2 {* @# n* Z6 U
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& J3 L: S F* Rtrade-times-total) Y% M7 F. B9 U, s5 ?/ Z
;;与当前turtle的交易总次数
) d- N0 A4 U! O/ _: \trade-money-total
# V I1 U7 Y+ o: e' _;;与当前turtle的交易总金额) a" f7 f# P9 N; V( K% m% y" l
local-reputation- Y* O5 e% D$ {9 S
global-reputation
7 ~# I: i2 h3 N1 v4 Bcredibility
( W, `3 w: N) ^;;评价可信度,每次交易后都需要更新
+ z- e3 ?2 B/ A# v# Xcredibility-all
l2 o" Z$ _% c' T7 E! Q;;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
) Q8 f$ v, B. b6 V% X3 Y+ C7 C9 |+ P$ f) D2 {
;;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0.53 j) j* p% K$ `3 d+ g/ o
credibility-one) I9 n* @9 Z! F' C; ?0 l& _9 ?0 B
;;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/ E0 w! Y4 Rglobal-proportion W- |4 p9 G! T/ P; G7 z# ^% ^
customer6 l. G& n F8 V: o+ a; t/ r( I" r8 P
customer-no9 P+ c1 b/ B- K' L
trust-ok6 Y. `/ z, o6 O# j' P4 N' V% f9 r
trade-record-one-len;;trade-record-one的长度, @% h' M% Y2 a) }
]# a( N# q& i9 g; h& A0 D9 h0 K. ?) E
X/ S9 K- s" h;;setup procedure; c. u! S9 [& L( q$ m% ~7 X% \- }
) @0 l$ V, w" ~ r. g' I" N% x7 kto setup% T3 d8 \+ {* E, J+ S
; J0 A% L N; d) y5 ^ca% j( `2 L8 B- L9 c1 O( ]
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initialize-settings
$ J, W& C5 P) F: M0 b0 p4 e0 U7 ^
crt people [setup-turtles]$ u* {7 i7 c# E! ], n k
. C: m9 N6 }) s% N7 Qreset-timer* V" F1 m0 t2 Y4 g6 g
/ z$ l2 A. Y- Y: q- {3 ?1 U
poll-class S2 j8 d k, d( h% r/ `6 a1 m# B# i
4 A) G; S) W" v! o3 g" N, T
setup-plots
! j" t. {! V' s
$ I( U u# G! B; h( o/ ]do-plots, G$ o0 y. r+ ]) X, S; Z5 a
end
& |& w; x0 n% l) W, G3 \1 \- ~" Q. v
to initialize-settings+ E1 h. V6 z+ F
- B6 y9 k9 I; y5 g& Aset global-reputation-list []
c+ u* i1 R4 g% R2 ?8 H K9 l; n+ ]
set credibility-list n-values people [0.5]3 F5 T# R( l- n0 G
( R% M. d; o p3 |/ S% L
set honest-service 02 s" p7 z0 M" o
8 e9 g2 [/ y) a/ d. Bset unhonest-service 0
1 B4 h) F6 U% w" I& V) j
( ?' P2 y( I0 B( h5 u, l6 eset oscillation 01 B7 g! ]& W) e4 }# N: ?" H- Y
( g0 B4 t! w. n- i1 y; ?
set rand-dynamic 0
# ?* W8 B) R1 O9 S/ q' h+ N6 fend( O2 t# d9 f4 V' j, x2 b c4 h
* }4 ?3 [' x/ V8 {( kto setup-turtles 7 K7 a' M5 w( [" y; B( Y
set shape "person", f4 q/ P5 [) S# [
setxy random-xcor random-ycor
" ?* q, F L% ^0 X6 j! z* C1 Lset trade-record-one []
* k) I( `7 {5 g# Z; l- s: @& U9 K# ]) Z1 k4 \
set trade-record-all n-values people [(list (? + 1) 0 0)]
& r9 G: T4 z" F) W3 u: ~1 J: p
, A& N% o& b) Q6 O' Z7 M4 h5 \set trade-record-current []
( l; o; o, h# Cset credibility-receive []4 [3 I* b; P/ m# x+ j
set local-reputation 0.5
+ q3 u9 l! `) n$ G: H8 Dset neighbor-total 0- {0 j# A9 f+ ]% {$ \* V
set trade-times-total 0) q8 d6 U% L) S& S! t
set trade-money-total 0/ ]+ `6 \+ l2 t7 c. y' {
set customer nobody* {4 L k+ ]0 b7 j$ j! R" z
set credibility-all n-values people [creat-credibility]$ o) l; A( ]! X" m3 c W
set credibility n-values people [-1]3 h2 e2 I! A$ ?* q7 M
get-color
* c. T7 k: a: p6 J) c0 j
/ I/ Q* S" z, Q3 ^: V4 o$ r! send
$ d/ u; r& S( I5 t: F2 P5 K' t" t. |- g7 ]* V5 y
to-report creat-credibility( s6 M: z8 ?0 D* m3 t
report n-values people [0.5]. _& B+ ^4 g( Z6 A
end# {" i; j" F( W
1 R' I7 f8 ~5 i, \- X# X
to setup-plots
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set xmax 30
5 ]7 B* m* f' n7 B: b% ^' A$ a5 l( C* a* ? _& `: ?
set ymax 1.0) b2 @4 w9 c, G2 a" m* _1 ?9 F
: x$ Q/ @# k# c0 B+ B; Y; S
clear-all-plots- V7 M# d0 X( h! \2 a/ D" s% d3 G
/ Y: `* h. {3 Y
setup-plot19 D5 t/ P/ Y1 w6 `
- u' f7 g8 u. J& z: Y( Rsetup-plot2
% W. Q4 E% H7 \0 s8 F) L. `
$ _5 J( ~# Z7 F; V, n8 k4 rsetup-plot3* U6 h4 b9 L( m; \0 G1 k& W2 H* [
end
4 r( C8 e g6 v. b% B
5 { w! C( e; e;;run time procedures7 W" R& t$ y$ E# [
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to go# k# V2 Y! O' u% a7 @# j4 X. I+ O
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ask turtles [do-business]. }9 K# U1 V7 l! R! T& D* F
end
+ K; G: L' q; D( E" I, k1 b5 O
1 a+ Z% Z4 X! t4 }. C9 t9 M% t+ O: jto do-business
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( u, j( o- q6 H: }4 @2 c8 l7 O* u1 _6 X: Y
rt random 360
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0 A/ _0 S d8 j7 b K' X
B: t1 p) ~; m* Q3 |ifelse(other turtles-here != nobody)[" p, G- Z/ P3 ?% }2 S% L" {
2 `, H) l3 p4 D1 zset customer one-of other turtles-here
0 {" w1 f+ U; E
! \$ H1 `3 ]' a* G4 N( Q0 [;; set [customer] of customer myself
p3 W+ ]/ S" h0 m' j" z {; i- L N! {
set [trade-record-one] of self item (([who] of customer) - 1)5 G [2 w( Z0 I D: b, N* u
[trade-record-all]of self
; a* V2 k* `9 S0 q) C7 d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) J9 w; ~; e! U5 C0 d9 u0 Y! p7 W- f O, p: M
set [trade-record-one] of customer item (([who] of self) - 1)
! A" x9 s) ~9 D [[trade-record-all]of customer: p A; H9 L; l, @
}: l) q7 d2 i5 [0 Xset [trade-record-one-len] of self length [trade-record-one] of self C0 k) i: G6 k& L' p
H5 B' P: ]4 g0 K7 b0 uset trade-record-current( list (timer) (random money-upper-limit))% |/ g2 h3 d1 z- V" P3 I
8 h# Q8 h4 L7 ^ c
ask self [do-trust]2 U4 f0 ?) ~/ B
;;先求i对j的信任度! g: j/ d% K, X% b& n" V# P
$ ?$ g- v/ C: Y$ D- D `" W: y. \
if ([trust-ok] of self)
3 N8 r; W0 p) I;;根据i对j的信任度来决定是否与j进行交易[1 a: `4 d1 T1 ?( _
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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7 h/ t" E# A2 ?/ Z t[( ?) t3 @$ V' K5 k0 @
1 G* _' Q: E6 F" ]# B" U
do-trade
; v/ ?! \# j9 h& o
1 t! D, x. x' ~! `8 d$ y: ^* Wupdate-credibility-ijl& D. x7 c# Y; A
0 }9 H# r8 d7 a; X3 C; F7 B
update-credibility-list7 x- @$ S* a( @+ }
- U+ q: h3 s- ]) a* S" d) x
8 j9 z; ?+ L( w3 v; {# J, N# Mupdate-global-reputation-list0 i, S; h8 I! j1 M [: E" `
3 Q. D3 B7 T1 q( J/ z
poll-class K7 q0 N2 G0 Q1 T, B
1 G9 M1 X" S: |: l
get-color
5 g$ Q. [. C: ^, v5 K% q3 V, y
6 p2 d5 d9 }, u! v8 j, X# _9 |9 ~]]( @8 g4 Z# R }* V3 I7 N
, }# d. P; {# r/ |9 N# l;;如果所得的信任度满足条件,则进行交易
% `$ b2 ]9 Z! `0 f* J1 o8 }' g. D! U+ }; z# j- ~0 t
[
+ d1 @+ Q3 G4 j$ H6 N" F' d7 {! M! u- i/ G
rt random 360. a, P* V; f! U
9 m2 d( n# |; u- h: Pfd 1
$ D$ V# `9 B: Y) ~7 {/ f; m8 L
% m" `) g& b+ }]8 b6 b( D0 J8 x" E
, H. U7 d/ H5 c' ?3 y/ A
end0 i& \ ~, A$ C- l
! w. A: ^7 \, `+ v- d( q! o# u- Kto do-trust # r9 t! Y0 b& J6 E: p$ u
set trust-ok False
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# y' A; f( Z7 o! zlet max-trade-times 0( |0 h) k! m1 ~5 M
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! p5 T/ C V0 T) X' M* P; L4 z# q. g
let max-trade-money 0
+ i7 q; O$ v5 c9 \: n5 B; pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. u( _$ t& u# D" z& X. K/ ?
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 G2 U* [) ^5 {; t1 o( E2 F8 X+ z' d' A, E7 Q5 Q7 }, P7 @) d
9 K( P d. z7 \4 m- y; g: Bget-global-proportion
4 h8 ?$ K7 x; @. x: Y* ]let trust-value
. a+ y5 M" N L! ]! [% Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)% O2 ]% y8 K. P" @5 `% E
if(trust-value > trade-trust-value)! b2 ~1 D% e9 ^* O3 \- N
[set trust-ok true]1 |1 B# r+ r7 p* L; O; ?6 V" A2 s4 u
end1 s6 w4 M5 w3 _" ^$ O/ q p: c* o4 Q
. @- r$ O: [0 x8 j
to get-global-proportion
( K5 R4 M; y% g7 F, mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% Q; G# s2 D( |0 d* \8 o f[set global-proportion 0]
2 d) c4 B5 H: l: Q+ ~6 A( a[let i 0
) C$ c# B# x- c, l" Wlet sum-money 0
0 O. Z9 b) _4 J# J4 D2 s& C. Vwhile[ i < people]
9 d$ T4 ^! s% M. U[
6 D! D8 R7 M7 }- g, a( L5 }" K* Nif( length (item i& l: Q1 ]7 E( t* l2 }+ Z# U
[trade-record-all] of customer) > 3 )
6 \' \: l: x; d) r$ B[9 L1 `$ ]: |& V4 X P7 k9 J1 K# n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! T$ j7 h# a f: r& y
]7 Y. j4 z4 t& {& c% a) |
]
% n' e; a& p) U, Q5 Z$ f9 wlet j 01 C8 k l" [, d0 D6 N
let note 0
@/ O7 ]2 f3 I( Awhile[ j < people]2 t" j/ [& R; z+ a
[! | T% v- T4 H9 d5 R5 T" b
if( length (item i8 `" ^) ~3 N, Z+ Z) P C1 v
[trade-record-all] of customer) > 3 )
! \* D3 F" l& n2 i5 T, \) |' k[
' X8 {: h) p# P( f. cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- @1 L9 D8 K! m; ]$ x8 `
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. z2 \5 M+ a9 {, L$ H7 @. e7 P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 _- l/ H& O) N: N8 I6 m* ?# O]
4 t5 p$ j, b" }6 C]
3 o' x. ^; F D9 ^ Z4 Kset global-proportion note
" }" \& j; v$ _]/ f5 J2 H2 ^. m) m: q
end
" f+ q4 e% p6 k, U% E: V
8 b, k; O% p1 ] u; N, mto do-trade
% h; z- Q$ A: P9 R4 ^, E1 U/ K;;这个过程实际上是给双方作出评价的过程
2 F/ g& q' a2 o2 A2 U R e2 Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" t ]- ^7 I; C9 ?& Z, _+ ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
4 j, g5 E( ^( T- P7 G$ U/ xset trade-record-current lput(timer) trade-record-current
?& j, ^, y8 a" E$ R& j;;评价时间 o8 L& T8 {! J& A" v5 `) J
ask myself [
+ ^1 G: k5 Q# K3 F: w+ r- p$ @update-local-reputation0 R/ r7 A3 D1 [! O1 Z/ q
set trade-record-current lput([local-reputation] of myself) trade-record-current
" R' @! D" [8 k/ g3 f% t]
( E- C/ r$ q1 F6 B5 Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# t& ]5 L9 Z: t+ V% M;;将此次交易的记录加入到trade-record-one中- ^" H# O4 T5 A. e9 G
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ S$ o+ `6 E% ^
let note (item 2 trade-record-current )
' t/ @. z( i1 lset trade-record-current
0 m1 R: {4 b9 z7 S. m(replace-item 2 trade-record-current (item 3 trade-record-current)), }% H) w$ H( W/ V: r$ V) X; x
set trade-record-current
& J9 y5 H) c0 q' X0 [1 _# {* }9 ]2 y(replace-item 3 trade-record-current note)
/ Q7 B0 y2 s% J5 `
1 e3 S. {' R7 Y# u% T
$ r# y U* U& p% ?ask customer [
I ?& i* _, u! t" dupdate-local-reputation/ h: W u; W8 c# l# B1 Y1 T5 q8 _
set trade-record-current' g3 ?- U! g7 q$ k" I! r2 B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* m- r( w% B6 l% d2 p% x]
3 e+ Z% i- N: K$ B0 O
0 u( X' v) W& B! |' k
5 r# ^% m/ r1 Z7 z1 u0 r) [set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, h6 P3 o. F8 Y8 R2 _1 ]# i
3 K- ?% M0 _4 d- L1 ?
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( t9 G) w: C2 L' R
;;将此次交易的记录加入到customer的trade-record-all中
' m/ q: s1 N& P: Uend
6 u( G1 v3 W$ D5 z! g0 [" E$ g% R5 t# C/ V
to update-local-reputation) e4 @* ]4 O/ Q0 L, C# |" D0 `
set [trade-record-one-len] of myself length [trade-record-one] of myself& E/ u7 V& y- Y, f! C( \
3 |7 [! @9 B& {8 w! O- j+ N0 U, P7 t& M( Z) k7 X
;;if [trade-record-one-len] of myself > 3
* Z3 J/ p4 y. A% I+ p) X' Uupdate-neighbor-total
& j, w! G* ?5 f6 k% R+ i;;更新邻居节点的数目,在此进行8 _, g( r* v7 }6 p6 R
let i 3
% J; `" h1 [1 \4 glet sum-time 0
3 P1 B1 d# H2 B' A5 @. X9 ]while[i < [trade-record-one-len] of myself], B! h( G$ Q8 |5 {
[
- T. \( M. ~2 Z. Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 M1 N, v& \5 G# p7 T
set i, B# S+ S- C- f0 T7 y9 w8 J
( i + 1)# I! C K6 t9 s. K8 D/ ~
]# @2 f" K! D( W7 Y; {
let j 3
7 i' ]% J! x% q) F7 n3 p0 `2 flet sum-money 02 S, Z& x E/ ]% p$ `
while[j < [trade-record-one-len] of myself]8 c5 t2 P. m! F+ _+ B1 j
[2 {5 A/ t2 f8 f3 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)% H" N5 O8 h; s4 y# g0 S
set j
0 e9 W% Q7 M* G# ^9 C( j + 1)
% \0 w0 c& Z. i2 o]
: l d# M' t* y9 x nlet k 31 C9 P4 P0 ]) p. D
let power 0
l" ^+ s! S l3 c2 y; Xlet local 0
' z/ S" Q# ]- e9 H! s& P9 s4 |5 twhile [k <[trade-record-one-len] of myself]4 Q8 C9 u- Z; h9 c x% _' q! y2 j
[ r* P, j3 Z5 ~8 a" _
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) 9 }7 w1 `' t+ E% [! o
set k (k + 1)
2 @$ a# h9 N1 n7 b: n) `]( E1 Q3 F8 w% A
set [local-reputation] of myself (local)
2 n$ b! h' q, K' T. l; T" Send
- c8 L1 P% U5 _2 q8 W
. Z; y3 Q- Y& I4 @to update-neighbor-total X- h# Y2 u1 x
\: V! g' Y! b+ iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: F5 V6 m6 j) L" }5 u$ ~1 M
( U( R P* P0 m2 g/ i+ b
0 s3 z# l/ b% ?. v: qend
2 t: T9 n9 F* [+ w9 n2 f
8 ?' D: ?% o- u9 y7 v% L2 U% V5 Lto update-credibility-ijl
5 v Q1 G5 F+ |( l4 O$ J! J+ `( E' m. S# _% q! R+ Q( e
;;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。$ i/ n. M* A6 h" ]! w& u
let l 0
2 \# V& ]# a- {$ Vwhile[ l < people ]
; [$ Q9 H# \/ [' F1 q% _0 ^+ K' f;;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 v5 _+ K6 W8 r# d$ v[
8 M6 O1 b9 Q# P* X' G+ m! U3 O$ |; wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)( s$ S( V# S+ P3 u: o p2 X) e
if (trade-record-one-j-l-len > 3)
4 _/ b# }! y. g; n( ^: T[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
6 Q$ X; {" M1 w8 H2 M* alet i 3, i! C2 j9 e; T+ L) e
let sum-time 0- t* F' i0 }' S
while[i < trade-record-one-len]
3 q4 L( f J- v- b, Y* f[" o* t$ |/ U$ _" l( v# M2 ?
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) K2 A; o- K- @) {$ V3 ?' A- \: |
set i0 u" m5 H, J* V4 _2 N
( i + 1)
F" I5 D9 |2 U( s4 B- O]
4 Q$ o' Q: t1 q0 Ylet credibility-i-j-l 0; X# r2 d+ f) q1 q, C# h3 ?4 g
;;i评价(j对jl的评价)
( {: j" a$ h1 w. J0 }let j 3$ v5 H) q% X& B( f. ]7 W! [
let k 4( L2 J8 W* {+ X1 O: y, U2 X
while[j < trade-record-one-len]3 ~7 w3 R$ O2 p& H5 [- u, H1 T
[3 D; W. `, y+ y6 ~
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- n2 O3 _+ ]: T+ k
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)
& U& B, K& T8 W$ h. Zset j& b% R9 n: ^0 F {6 R
( j + 1)
/ T- b+ T/ P x( T0 ?$ b]
, y1 z1 l, }; X* S9 t( S6 Lset [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 ))
. R7 ~$ }7 y+ u5 V4 B6 Z, b( @* }' j# R2 H
. g1 t( i, Z" V; C) i. olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ E. ?: u8 h! l3 x$ _8 z P5 i;;及时更新i对l的评价质量的评价& u( w3 E% p1 Y9 g
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
K8 e1 c# V* h: ^set l (l + 1)3 ?- U q' { Y$ D7 B6 r
] Z2 @( v' W5 |2 R& Q
end
2 ~9 [0 e1 P) m, g
8 |+ {4 D! P) k) P8 @- M. Zto update-credibility-list" q$ F6 W% J! ^! V0 E ?
let i 0
' y. w) X: p4 Y4 a9 J6 Rwhile[i < people]
) _9 ~/ b+ e7 U1 q# ?0 D[& V/ p) u3 v7 N' Z
let j 0
2 e1 e% o1 _& K$ Elet note 0
" o0 S) _7 O5 _( k) V: y( i Vlet k 0# Y9 L9 B* d, L8 B8 L6 k
;;计作出过评价的邻居节点的数目
# W* N6 {' U9 F' L G9 | kwhile[j < people]
* D0 k5 Z7 K$ n0 A, O9 ]/ d/ h- }9 B# K[
$ c. [! o- x! F. P+ r6 W' h% rif (item j( [credibility] of turtle (i + 1)) != -1)! v" r+ U; e% U( U
;;判断是否给本turtle的评价质量做出过评价的节点
6 ~! t5 _9 r' g3 X& A7 y[set note (note + item j ([credibility]of turtle (i + 1)))' s% O7 @4 b3 h' R, _: [8 o
;;*(exp (-(people - 2)))/(people - 2))]: O- d4 \; L9 l) P8 K% J- F
set k (k + 1)1 h- Q. k0 U: v1 B: m! `
]% h/ K" \3 Z: I) v
set j (j + 1)5 d; D- q9 i m
]
/ k7 A# }+ T1 ^2 F9 Yset note (note *(exp (- (1 / k)))/ k)- \" b* M- S2 j# `4 ?! @
set credibility-list (replace-item i credibility-list note)2 ~3 C( P3 s, G( [ `/ A h
set i (i + 1)
! u- X0 z1 i6 ~]
7 B5 l: I1 }$ ]( t4 z9 E7 Mend3 f5 I: J0 q' n _, m M+ {5 @
' c# n8 U( @) ]( [) B( d+ L; a( Sto update-global-reputation-list
: x x7 n8 u; `+ dlet j 08 d! h! D- L! t
while[j < people]6 A. e& c5 E2 s6 w
[. o. d% E+ x8 z
let new 0! j z: }" S) O Q" x$ M, D" G! V
;;暂存新的一个全局声誉
4 ~; f! d7 z4 blet i 0
+ z0 o! b9 A% `& s5 ^let sum-money 05 B7 g2 ^: y+ k* a
let credibility-money 0
, G# z+ r5 ^$ `) X' Uwhile [i < people]& Q0 ]& U1 p' _& ]# g! W6 t
[
7 n, Z, O6 X7 e1 o( h+ A$ ^! fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) P2 ]3 ^! f# H* ?. w
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) ^1 @+ B, j" w/ e: F
set i (i + 1)0 g5 U! K9 M6 A/ |
]
% u. _8 E% U& K _# B' {let k 0
Y' \: n; c: s8 i% r2 x2 ulet new1 03 C( U8 F# c( e' e
while [k < people]4 j) i& ]) K& ]
[% z/ m/ Y T. ]* ~
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)9 _ U: Y9 w$ o
set k (k + 1)
% z* O4 i/ `3 T+ Y, n% I]
% V4 W* F$ r8 Q. zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : o5 M# n( a3 A) E% S& W1 t
set global-reputation-list (replace-item j global-reputation-list new)
% s" {# k1 @+ `9 M3 N( pset j (j + 1)5 W N. _0 f" V
]1 R) ^( ^6 e# [+ r, \3 l
end
1 {. ?2 l% h1 ^8 m" h1 W: h8 D9 i( B" y* J" e
) V( o F3 D& D& ?1 ]( [) {- p6 R G/ i
to get-color
/ ?) @( ~+ |% s5 O7 \4 ]! n& P" u v* B5 A- C8 t3 @: y: V
set color blue
: X7 N; o' f3 M% }end
" B" s; S8 C# M K7 u* e
/ U& Y8 z' O$ [2 F2 zto poll-class9 L6 A. H5 ^" t& n# M% [, D9 t
end; m- ]- }4 Y( o% f
2 e& [* _- m1 ?9 y9 D
to setup-plot1
, i$ q/ Z8 o4 ?0 {% N
( b( g' d) c1 d: ]* _set-current-plot "Trends-of-Local-reputation"
" R& B. P0 ]/ ` I o
; s& |+ O- ]% w2 x8 ?7 aset-plot-x-range 0 xmax( X: Z) S9 n; y$ _
- l& L4 M- ?& E/ Wset-plot-y-range 0.0 ymax- y. X* C1 z( _4 u7 M) d# @
end4 z* h0 R# n: U
7 B, w$ p1 W( N# w! k; Z- wto setup-plot2' T2 B5 u& j H( b7 E3 |! \
) I4 Z0 X. z Eset-current-plot "Trends-of-global-reputation"
9 ^; A$ r, H# w2 x
+ v, Q/ c( v+ z% G8 `2 Iset-plot-x-range 0 xmax
; V/ U8 u0 q( N( L
+ U, x6 ~/ ?; T1 f4 ~' Tset-plot-y-range 0.0 ymax
4 x* a3 n O, |7 Eend
' H* J: a) L+ {4 \
3 b$ q3 R" Y1 U( i8 h2 @( u# e; ^8 Ato setup-plot3
# Y$ |) C6 N- E: f, r4 S6 ^2 j; |
3 P; d5 f6 M3 ^& k F2 uset-current-plot "Trends-of-credibility"
8 D! I$ f# n+ H5 M# q" e2 J
, [: w; a3 b2 J9 e; P) _3 Q% G8 i; Aset-plot-x-range 0 xmax9 N4 x, Y0 y4 b- G4 ^. n9 n F
9 {0 @3 M# d: Z8 o) f
set-plot-y-range 0.0 ymax
- h' l: _. Q7 z# Aend" o0 A3 s& E/ c3 Y J* L+ H+ j
, @- p8 a) m* K5 R# mto do-plots5 _; g0 H# A9 W H+ Q! m4 }
set-current-plot "Trends-of-Local-reputation"5 A$ R4 A! R4 k1 z. }. s6 o
set-current-plot-pen "Honest service": |% h. R- i1 v+ b# {6 z
end
% m9 W* ?9 ^- D4 T* h% @4 I- B& C. B* Q
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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