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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2 p: z; A- W% N2 ~" ~9 d
globals[& f7 m0 S1 m3 z" Y
xmax: g: N* [$ }/ s( e
ymax Z6 _+ }8 A) R1 h2 G
global-reputation-list- [; y0 c' n) h8 s. L9 |+ n: T
$ R) ^3 c8 E7 n" B
;;每一个turtle的全局声誉都存在此LIST中
. y1 n& p; F7 Ocredibility-list
7 i- q! ~& X, @- ~ C;;每一个turtle的评价可信度. g3 \+ i. u; F# e' A4 z
honest-service7 l% x" G, S( }5 |+ b) U( l
unhonest-service
; o/ i3 I, A- R# }2 q E5 boscillation$ ^) X- J. X) n: Y1 \
rand-dynamic
' d! J5 ?% e& |2 a]
9 L3 D9 C' f/ O$ _. C" i/ y x
7 W9 E0 m( y# lturtles-own[$ v* }! e: a- X
trade-record-all
7 O' l' C+ W( k- E! ]8 C;;a list of lists,由trade-record-one组成9 T, h. j$ Y4 {4 y2 j" [
trade-record-one' a e) O, y6 j) `( L: O* Z; C
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) g( c6 i, P0 U& Z2 b$ q8 Z
( f( ^6 |3 V: p6 w
;;[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. U" \# }5 U, e9 i+ q0 C
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] Y3 Q8 \4 ~- J0 U9 l% ^
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list9 |: i# y+ O+ n2 v
neighbor-total/ E' s# w& ~& r" s) l
;;记录该turtle的邻居节点的数目; b( D# B8 a, ]$ L$ U% y5 \2 `
trade-time) Y. c K- f3 Y/ _
;;当前发生交易的turtle的交易时间, S; i4 B4 z# s) B) {5 G) k- d
appraise-give7 I& L' n; h7 d) s5 V( W
;;当前发生交易时给出的评价
) [8 R; ^* H5 G+ K! @2 m0 Cappraise-receive t7 B5 e* y8 X9 O# ]7 U7 ]: [
;;当前发生交易时收到的评价; F4 C% K5 _) G" f
appraise-time, F" J5 S3 a& V3 O; h. E G; Y
;;当前发生交易时的评价时间+ l% F/ p- H- L8 W* h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ f, ]% W0 |& n# W8 U9 atrade-times-total u! A' l# K f7 W! g& y. D
;;与当前turtle的交易总次数% d! L. O4 \) U" s( }: q4 T" E
trade-money-total
, N" u X% {. P- x9 W;;与当前turtle的交易总金额
+ i5 |# `: k6 M! I! Z) llocal-reputation0 d2 ?, o7 r- C8 N& W9 Z4 N* k
global-reputation( V& C }6 h6 u" ^ W l$ ~
credibility) l5 S: I$ q+ l6 ]
;;评价可信度,每次交易后都需要更新
# ]) o7 R& B( {3 Z3 V) vcredibility-all9 y! @- ?" Q0 d# V
;;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' Y8 p1 @ {+ Q
: H4 p- ]' h8 U6 @9 E% A
;;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 C: W% L- t) i) [: v% e6 n
credibility-one; n2 B" L5 m9 b7 n! D2 ^/ L
;;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4 ]- p9 E1 k/ j; H2 s! D
global-proportion* `8 `8 G( X; `. ~! `
customer
, L8 R9 U+ P1 ecustomer-no
0 \' M* |" H* W5 B( D+ Z/ Btrust-ok; b5 r/ T0 y1 h
trade-record-one-len;;trade-record-one的长度
( `! O$ u l: A! G& o1 r5 f]! Q$ O& e B% }) I
+ T( P! W* |1 y0 A# P9 F;;setup procedure9 \) k2 \' c2 b& }
) X+ q8 V$ ^; X2 h6 ^to setup
+ P6 U/ T* H2 \. ]1 M
- p# |+ Y0 U/ Y) _) bca8 _* T$ z9 W+ u9 g. |! q" b6 J" F8 p
i9 G% |7 k' qinitialize-settings' ^5 Y( s- f' K7 Z% }1 q1 _
. w, v; q9 V8 g* c3 E5 F: W" a
crt people [setup-turtles]
( g5 ?& \0 e" H6 C) [" I ~! s6 W' h
reset-timer9 g1 Y; M! C* o/ a
0 f/ q& h3 t, q: q
poll-class% Q# ~2 A, P# z0 N$ V( k
1 o. o* L, G c: ^8 [1 I, k* xsetup-plots
6 q8 l @# E9 c1 C: W5 D
% u- F' p) ~- g/ V6 V+ |! @7 M! Ado-plots
' W& m& m8 v pend; S |9 {: R; T& a! A: |9 S5 J
8 n7 Y1 w7 J Y" b2 J/ C: Dto initialize-settings
; E- I4 {: }% e' p* U$ d1 T
4 R( `( S3 g9 N4 F5 Q. C+ n& t1 Cset global-reputation-list []$ |; [6 x% y5 A6 L
+ l' A% i4 J5 a# x$ Nset credibility-list n-values people [0.5]5 e+ V8 g- N l* V: g. I" p
* \ ?1 H5 \6 y; n; O$ `! \set honest-service 0! \0 g5 J$ H& o) M2 O# F- |
0 g* Y1 ^, L. o1 H( {' _& g# _
set unhonest-service 0
( x: J( Q, w+ U2 D* w+ o! m; U( {" |, U$ N% d7 G
set oscillation 0
{, [, U# g+ z' l0 `* x% |- j5 `2 }4 ~9 w
set rand-dynamic 0
0 @& h( O2 t" G) wend5 c2 ]# m2 V3 F1 e, o# X7 i$ m
1 v: O9 C4 t# X7 S+ Fto setup-turtles & G! I4 x% M# r- Z+ I2 h" [$ ?
set shape "person"
- H6 Q8 l9 x" f7 C2 s# fsetxy random-xcor random-ycor
) v) N6 ~( \3 j" G9 V5 Cset trade-record-one []
l9 g: D) w1 C: @! E. o5 |4 W, r2 l0 X- S& m
set trade-record-all n-values people [(list (? + 1) 0 0)]
2 r' @+ Z* c: F ^. ~- @* K9 l c4 |8 a$ `& Z
set trade-record-current []
4 A2 k. D9 H8 a4 O H7 M% eset credibility-receive []) U0 v+ K8 J; i! ]
set local-reputation 0.5
" Y; O3 @0 H% R) f4 `set neighbor-total 0
( J" U; P6 A: L7 ^; Iset trade-times-total 0
; q1 [3 n) A) w" L5 B& `1 m% Jset trade-money-total 0
# x r) c6 k( i: gset customer nobody
: Q& }. p0 N# M9 A0 Eset credibility-all n-values people [creat-credibility]& ]3 S" e- F9 m2 I4 l
set credibility n-values people [-1]0 m9 V5 u* `3 g8 k. n
get-color p2 ~0 n8 t* L0 J; c* i1 n3 ^
, l# o$ z& C, I. \8 Mend
% \$ w1 Z& X4 x) ], T5 w; i# [) C! T. b% |
to-report creat-credibility8 k/ o$ f) f5 P' S _( d b, W
report n-values people [0.5]+ k2 `; ?7 R1 h5 s9 X% ~ G
end, ~; L# }, E: D. @5 I1 [& n
; N- q6 N/ ?( q( V! `2 e4 }
to setup-plots
d: {# s7 H$ f( E7 M# ?3 ~" i
1 V7 y. b: R2 N Q% q) o9 P. ?set xmax 30+ k3 T$ M1 }& W1 V- \0 G/ {( d9 e
# G8 y. w9 @3 R2 g, E1 Hset ymax 1.0/ }) A g4 g8 l6 |6 r
( ?) D# \! o( j- Vclear-all-plots* d3 m7 a/ l7 o; u5 v
' Z1 [3 E) e5 s! `' K
setup-plot1
) t' E! T" t, C7 L0 g
) c8 ?+ @7 b. {# ^) xsetup-plot2( o+ K# ]( r- Z! W
6 D" l% m4 D) m6 T l; ~1 @& I
setup-plot3; N4 ~2 |) z) F- O- q
end
) S* A4 Q8 w) W) e% a* w/ a1 l
+ x8 H1 B: `/ ` Y3 ?! E- w" x;;run time procedures& i8 @1 ^( {: ]3 z( ~5 R+ u% f
1 u# b; _6 J. N; N7 r5 zto go
+ q. _# {8 N ?; t) b2 g P+ @+ G9 G
ask turtles [do-business]' E4 a) N3 p3 q- A' q/ S
end0 Z2 g6 t- i, H: E! D+ w
- R9 K% }! J7 J5 _to do-business + V- U8 D4 D4 S, d9 z
4 i$ c2 z1 c3 l# K
5 H4 @, f T% _" j
rt random 3605 [+ f: R5 K6 P" [, S& M7 X
0 T0 J8 L7 k" j+ d2 i* P3 v: M0 sfd 1' D4 Z/ e; l, u8 N# [0 d
! J1 F) [7 x4 `% ?( s( o
ifelse(other turtles-here != nobody)[- j; W8 \' n: i- F; R- E
. d) L+ z& U/ D" u7 d- _set customer one-of other turtles-here
* F; C& @8 m& _/ }& m) }2 M* v' E* c9 ?1 w* k
;; set [customer] of customer myself
- U; A5 U- I6 }( z$ c+ Q r2 I
% o; D1 \8 o5 d. S( uset [trade-record-one] of self item (([who] of customer) - 1)& S h% [% |+ Z
[trade-record-all]of self
" h1 Z3 \$ W- g" H;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ `& f# J' W: t4 j8 r' Q5 F
0 P0 {8 ~. B- b5 mset [trade-record-one] of customer item (([who] of self) - 1)
0 z; [& J' Q/ J* D3 {8 Q3 }[trade-record-all]of customer& P$ X" q, I" I/ I; m4 `3 g
, V' N- C; |( Z: n& j9 @; B
set [trade-record-one-len] of self length [trade-record-one] of self
8 |! s" L. I/ e4 N1 O6 a- s
- r: _; b/ w9 [! bset trade-record-current( list (timer) (random money-upper-limit))
. z8 x; @1 R$ I. ~1 ~4 U/ q: X% s1 ]5 |
ask self [do-trust]( p$ P- y9 q# q7 A Y& D+ l
;;先求i对j的信任度
. F$ }0 u5 O7 O1 W4 n4 p0 E, j6 u5 B" O( Z& M U& R
if ([trust-ok] of self)2 D* _) \: ?4 O4 J
;;根据i对j的信任度来决定是否与j进行交易[ ?. L8 R* b/ n6 ~1 w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
0 O, a- X) A: ~9 s: I7 ]. A" Q: c9 @2 ^
[
' u, ]( m+ D% p6 u% \3 o0 t5 o+ U# f0 ]! C) x
do-trade
7 J& N, w$ f( B
+ H& j) [0 P$ o) u5 F/ y. g4 T; _1 Nupdate-credibility-ijl8 g- H; T3 Q, F$ L
- {3 _- \1 o' n3 c3 `0 h5 nupdate-credibility-list4 i( T7 i1 {8 F" p
% f# o. g* q% @0 _- f
0 b& h) H, P& a& U/ I/ k
update-global-reputation-list
4 \4 n, c# `% Z: u% B
: {+ @1 v5 N3 O8 |1 j! Wpoll-class0 M* x. Z! F m( A
8 A" a6 {% Z$ mget-color
0 E! y% |2 g5 o3 a! u% p7 W3 ~& ?) }! z6 I# r8 j+ F* {; `
]]# w- B+ W. }) l) J
- M2 V9 U+ h* D8 a, g;;如果所得的信任度满足条件,则进行交易
" E! V7 h& l! W$ R: }6 M1 x! Z) j. o+ d
, M- r8 _8 L( m* ^/ E[
1 s0 ^# p$ c5 q! W+ w9 o% \. O, o: f
rt random 360: |! {1 @* t9 Y0 O5 _ X# U
$ I/ r4 a- b8 t4 }' | u
fd 10 g8 T7 l' K9 I5 b; L- p2 W8 V
8 I K$ ?2 A1 b& ?/ O]
5 K$ f- G8 K Q3 R6 w1 E+ X+ t; `
. y9 | k" n6 X/ gend: N- o5 H* _& a% Z# r
0 F8 H S2 d- ?. oto do-trust
/ |+ }( K$ a- o9 @# gset trust-ok False% _( k( G# r0 m0 t, ]5 {
. A. y0 Z$ ?! _- c# a. l3 q. x
8 r3 ?$ l6 Y, T- d R" C6 [, v8 plet max-trade-times 05 Y3 G. A* |) D4 @$ t0 f% B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], ]$ u3 X. N! U$ p
let max-trade-money 0
4 K' { \! k* i8 e% m8 wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 S7 @( n5 ]6 l9 k! Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 r+ J" K3 n& \$ ]9 H% h1 i& G0 ]3 z
3 E7 W7 K9 l; p+ l6 g% A8 |: ?- r% ~
get-global-proportion
$ w# p- T% I, I# c& mlet trust-value
2 t/ J( \' e: W8 p# q% 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)
9 \4 E8 x' O# T" jif(trust-value > trade-trust-value)" {% f$ A1 |& x8 y0 }0 ^0 K% h5 f% i
[set trust-ok true]& ]% W5 N9 l. ?- m9 z
end
7 s! f- {+ @! H) ?5 s! C, T' x. A# H. `* V3 x+ ?% f/ ]9 a
to get-global-proportion4 i# G/ ?' ^* c: d4 ^& r
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) f* L: M* s' J& @, r2 W+ f2 F
[set global-proportion 0]2 l, V0 d' b7 G- `) z
[let i 0
/ O2 ~" w: m% N% @" Jlet sum-money 0
% r5 F) |% X9 D4 N! Dwhile[ i < people]- t( x: P9 u: P" n- W i( j5 Q
[3 m D1 y. A! g2 u( q. \
if( length (item i
# N+ t- t& {9 r. |8 I[trade-record-all] of customer) > 3 )- u L7 O! Y/ ?
[3 Q4 o8 s w# P# z3 x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 r: G9 f; I8 p/ O3 [
]& ^. F% [ ^9 M- e1 g* [4 q: F
]
~+ N" j, W$ z- ?; Flet j 0 {+ v. M8 f: w3 ]8 H
let note 0$ r0 Y$ r- K/ C) C6 U& ?$ f3 p/ b; R
while[ j < people]
+ o* C( `, Y* o[
8 e. q6 T- v) d! X: Nif( length (item i( D" N) S' R8 [. N2 c- a& |
[trade-record-all] of customer) > 3 )2 n4 Y6 S) R- z% E0 B; l& [
[9 ]: y$ Q( ~8 d# B; k
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ q& R- C2 S" W5 e* Z/ I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" s d+ i `: y B5 T, l
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 R" I# a# \' o3 q ?: q
]
# a4 W* ^2 W8 D- P8 @" w]7 d2 f7 I5 a# o, _1 n
set global-proportion note7 Y' @* n) D& [) N! U" _; S) \
]
: n/ g" k% f# X3 Lend
# ?: ^. d ?* a; X& K! {- e
9 _/ M' Y1 N. Ito do-trade
9 D3 Z6 c- f# @1 o- Z( u;;这个过程实际上是给双方作出评价的过程2 h- x1 b9 E8 [% S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 f1 ?% U( D. o' a8 |: Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" f6 O ?2 q. q% c) @4 wset trade-record-current lput(timer) trade-record-current
/ F' s9 _9 w, \: Y% y3 D1 j;;评价时间
5 Y2 `! q' c8 @0 E& k" o, D8 _4 y0 yask myself [6 M: O* i! H) g. ^
update-local-reputation
' Z3 k. j) [+ _! F D! R4 Lset trade-record-current lput([local-reputation] of myself) trade-record-current5 H! _* R3 r" ^5 \2 K& d% g
]
4 X( ^+ O' k% L% g7 [4 r4 Y; Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ n$ m, H/ R8 C! q a3 S. S+ |
;;将此次交易的记录加入到trade-record-one中9 l: t2 |$ o1 K( U0 V4 Z; K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! d/ Z" m9 I+ g' ]8 `. Q7 `3 N; Elet note (item 2 trade-record-current )- `5 ]) H, n# V& L" i
set trade-record-current
& r; [4 w" h8 i( T(replace-item 2 trade-record-current (item 3 trade-record-current))
% s7 V$ w3 ^0 zset trade-record-current! `5 K6 i. s I# y3 q3 U- H) ?+ Z
(replace-item 3 trade-record-current note)7 E f- Y! ]; U5 l- I' J- k0 }8 I: s
O: Q+ T: l! c$ U
) F( p2 v, t- \8 ~1 ?6 f- D
ask customer [0 @: s- m( G* w: u. i: z# p
update-local-reputation( c+ j2 B: ?% @, f$ g
set trade-record-current
$ M! r1 f$ f- d2 S+ G(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! K2 X' S8 X* Y6 P; w]0 \+ e3 ]6 Z/ o' c2 r
$ p6 E3 }, }3 {2 E3 H
2 u8 X2 B9 G) F% k9 Qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( Z+ _" O7 f# N6 A* D" Y! J% e9 W
3 S2 O$ h8 ?! y' B; jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' I* m9 Z2 x9 d1 y; @
;;将此次交易的记录加入到customer的trade-record-all中6 y' S& v4 L; l B
end
# ]9 { y2 u) v1 a
# H& d i& V' b% |! A# v5 rto update-local-reputation, J E! g+ Z0 d: x. I& }) |% U" i
set [trade-record-one-len] of myself length [trade-record-one] of myself, K+ q5 P$ _! m- u- V9 [8 G- O; G
8 U& z; g- k. ?6 M3 v" d) y
! _: Q9 I+ j" W* x, L
;;if [trade-record-one-len] of myself > 3 - L1 E4 \) T$ C: ]" }
update-neighbor-total
) a ^* a; T1 V( O1 a;;更新邻居节点的数目,在此进行
* y, d; z4 ]. b2 D" m6 Vlet i 30 i! ?! A3 \6 k6 t) {; ]2 i( K
let sum-time 0
* _. U, e: }, ~8 e8 D( Qwhile[i < [trade-record-one-len] of myself]1 N: |9 R" J# u3 w9 h
[
3 w& U, `' G7 \ k& Uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 d8 q$ K* v& Y7 m( _set i
2 @/ f% w, Q3 G( i + 1)
# b/ u3 T" c3 t& w6 v( E]5 Y; X7 `; d: u9 ^8 T0 p; G5 z o" J
let j 39 p4 t3 P: C$ t7 C# R: [
let sum-money 01 a6 C+ d( d: x; u7 i0 p6 H
while[j < [trade-record-one-len] of myself] o; v% I) Y3 @3 D! d( c4 P
[4 c6 h- m; B* |0 m4 l
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)
0 |. R+ L: s. e, eset j
2 u8 ]1 d- g6 r( j + 1)- c. N) P( T, c& E& }( ^5 i8 L
]
' o% M8 i3 {: E7 Ulet k 3
& b7 ^2 {; `" olet power 04 H: ~2 h' Q" N# m# m$ z
let local 0
& x" G) g8 t0 R! ~+ iwhile [k <[trade-record-one-len] of myself]3 C6 ~7 x# V6 K6 F% D4 t
[
5 o: t; d2 F! u' U3 P! B) Z# L& \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)
% c+ ^# k0 Q8 s, G( y& |+ `: \set k (k + 1)3 D0 V6 o! M7 X0 o! W- Q/ U
]- \# ]+ j% I% q+ I- x5 n& N# O
set [local-reputation] of myself (local)
- Z+ g) ^: P: U; n: [# d& ?" Eend
5 u7 T8 r) { y# N/ m0 N: @, [# y) q2 B
to update-neighbor-total: H. c% d! g7 N u7 f
Q. h5 K) i) j/ h; X$ }' I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* |' d: H8 P% \3 v
; m+ v7 k, {9 v b j& `* w) w/ V
end
7 i: a) i; r+ a* L# e& Y& T
4 X+ G& {" e% G6 j' ^! z. hto update-credibility-ijl * \* W" L; Q, [, u3 O7 \
- H: K0 P7 S( T+ ?6 a1 c
;;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。
/ p% G/ ]% l6 n3 G+ Hlet l 0( c% T: D* y4 q- f/ z
while[ l < people ]; i8 W& S4 \) A, o' ?" [
;;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
3 M) I% n3 u! o- K! Q[+ w: ]: d7 @# O$ T3 t& E; ~
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 X$ w6 R4 ^- U8 Oif (trade-record-one-j-l-len > 3)2 \( l* [' V8 G, v/ [
[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
' `4 u! z0 D) q9 Y6 d5 ~+ i Ulet i 33 z/ s9 p: I+ c4 N& n5 A) v
let sum-time 0 x! Z4 ^: |5 W- A# z
while[i < trade-record-one-len]" |, L% Q0 T d+ r: x
[
. \1 K- J8 [- H( E. H) d0 P# w& jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 _5 }, ~+ r. f3 P |
set i
+ i5 L W' e: j' q( i + 1)6 D! e; X* h! @, F
]/ Y' O& n7 ^& `) e0 D% W Q; p' ]
let credibility-i-j-l 0
1 Y: P/ `# b; P. c* v; |2 M;;i评价(j对jl的评价)
4 T+ C5 w) q- q5 H2 X* W* j' qlet j 3
2 L. p5 z% K) L0 I7 i+ N6 G3 jlet k 4. [% E! B4 J: Z) U1 c- _8 s/ B) z
while[j < trade-record-one-len]: d6 R+ R) @* z6 J
[
% n. N0 X* @4 I1 E4 v: B1 F, X0 V7 bwhile [((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6 |- b# j: }$ q8 c' A
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)
, F& U7 ^' b! l4 N v+ Rset j
' u& `. K, n; V2 A' s. ~/ s( j + 1)
! t# [2 n0 {# x]7 O8 ^" M$ F# i: d
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 ))
* ]0 |' [$ g/ `; e1 Y1 ?0 }. x
) n8 \* C7 A9 q+ Y6 j
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 ~' f! S) ]% g" K. L- I, {, X0 W;;及时更新i对l的评价质量的评价0 z% Z9 m$ X( W( t$ Y/ t: j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) X7 K; z Q' X( n$ Fset l (l + 1)
/ I* d1 C/ ^9 h u( ^]* S/ A% v' w6 J7 F d& R5 t7 a* W
end
# E' @7 y- R1 b/ l/ a' v P% c z! T) c1 T
to update-credibility-list
3 Y8 i7 q8 p w5 y% M, o$ @let i 0
( `4 u/ w% s8 l0 lwhile[i < people]
' K1 m# I$ v U[) a$ `9 ^$ ]" ?4 D3 C. u; e- y
let j 0( }6 D$ w9 r4 Z+ B& H
let note 0
2 e* w' U! ?! i) ?let k 0
) V% O) C. [/ O3 _4 E5 v7 j$ Y;;计作出过评价的邻居节点的数目9 _5 Q- H1 a0 _
while[j < people]
5 Q; V! D; b) g, S" p4 l. r$ d[
9 G8 t+ D/ p- w5 j! _if (item j( [credibility] of turtle (i + 1)) != -1)$ P3 }7 @1 l1 K# p
;;判断是否给本turtle的评价质量做出过评价的节点
f: k. Y4 f! t[set note (note + item j ([credibility]of turtle (i + 1)))3 a/ V6 w7 T! Y2 o
;;*(exp (-(people - 2)))/(people - 2))]
" Y" C- z/ c1 E* |" U* |' Zset k (k + 1), q0 P" g5 w; ~$ u# i
]5 w. a* i" u) H# c* y$ `
set j (j + 1)2 Z% X% w0 ]' q: V
]( F/ Y4 N5 D' `
set note (note *(exp (- (1 / k)))/ k)% w. M0 H3 T( Q" [9 E) i
set credibility-list (replace-item i credibility-list note)
6 r# G/ s: ?4 i7 b Y9 _& kset i (i + 1)
& j9 B5 V* A7 Y; p]$ y7 r, H& i _# O* Q7 J- q
end9 G6 b) p1 W1 l
H' o: k f6 G* A2 `
to update-global-reputation-list
- ^: {4 I6 @) ~- c/ Ulet j 0 j# J7 C3 E$ Z5 F7 ?+ s
while[j < people]
' s+ ~" v; Z( V7 g! E* }/ h; ][
5 e* J9 M+ O1 O& Hlet new 0% H& T+ ]; e; ~
;;暂存新的一个全局声誉6 a! r/ _, G) p4 ]8 {
let i 0( t2 b( J G0 b V: q
let sum-money 01 v1 s5 E# w$ u. P, U
let credibility-money 0
" i0 s' ]7 V5 o) \5 | }while [i < people]
" n- v/ a: J; H6 P& q[
6 x& t2 ~# n$ T4 K8 A* w8 b' Q. [0 Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), {" r/ `. _! Y2 V7 K" R3 } ^. \( }3 c
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ U% y% n8 e) {7 [3 j: m, C
set i (i + 1)" P/ x |- S8 {5 X" M
]
) d3 B0 e5 @" `: Llet k 0
& z$ z# V" z* [$ R3 m; P7 c) qlet new1 05 b9 l% A$ |0 s+ _) T5 p
while [k < people]' k$ N* H! N4 I! X0 d* g( f
[! n0 ~3 r4 p, }* O* w
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)- B% O* ]. ^2 B3 P
set k (k + 1)
$ M6 |6 j' T& V! m]4 {( {9 q" m) c; X, q+ p7 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! S4 h* m+ k+ {( D hset global-reputation-list (replace-item j global-reputation-list new)
/ |9 C4 }! ^5 e/ o. Hset j (j + 1)
# l! n) k" E5 {8 `3 Z; l. Y' Y]8 E( \: |9 I! \0 U) [
end0 O9 U& R5 S5 K, c) M! U) l
* R, t: s- u: t
. v: s& J0 Z2 V" n, v Y% n8 f' K/ F8 @: V2 D- H9 G) ~" y
to get-color& N) `' @- b* J3 X, ?
1 Z" J; @ Z0 i9 t9 sset color blue: ?0 U, l2 u2 q5 q
end
" e* M: \% @% d. s: J
# j b1 r3 x6 v, D* z; V) }to poll-class/ P3 ]1 g4 ]' q
end
( z2 \) R! G" Z- E" U
: \1 U, Y2 [1 i5 ]7 P% |8 cto setup-plot1
& R( J5 Z8 L, U* B/ D4 c% f/ |) l% m$ M$ ^0 a4 w1 C6 E
set-current-plot "Trends-of-Local-reputation"
6 X3 R* U1 T/ x2 t0 p1 N2 |; @) O W4 a+ h `$ O: N
set-plot-x-range 0 xmax4 G! O3 D6 z' {
# U l3 \8 Y; j& y3 Tset-plot-y-range 0.0 ymax. f# G: C- H: U% c
end w1 @9 E6 [" M( [
3 r' z- e) e9 d! M& K4 |: c# ?to setup-plot2
* C; N) y1 g- }+ L8 L$ l/ r; Z
, \) R( v6 n0 n6 N fset-current-plot "Trends-of-global-reputation"+ Z/ }8 V3 L. w7 B1 |- R
5 a0 M0 B. k1 Xset-plot-x-range 0 xmax( ~* h# o5 l7 e5 p6 k, C2 Y
4 c" Q" g) Y$ d$ \4 }. R* yset-plot-y-range 0.0 ymax7 L# t( |: K7 h
end
0 B6 i6 b* Z* Q% E
0 y! |+ v5 N8 ^to setup-plot3
* q' j- @) e2 f% r) X# u/ s9 d% I' ~2 M3 K
set-current-plot "Trends-of-credibility"5 a) z% h7 r8 M; U
5 U$ O. i7 I* x q
set-plot-x-range 0 xmax
# \7 |1 X/ k6 [" K. G2 \- P# ?& M. k: W* r. a
set-plot-y-range 0.0 ymax
9 Q- N4 @( T: _6 p" ]end
/ r3 U$ q% B4 }2 w
3 G) m0 `* p2 Rto do-plots( \! ~: P" g# C, j! o
set-current-plot "Trends-of-Local-reputation"( j3 E3 q& O4 n6 L
set-current-plot-pen "Honest service"
2 A1 C7 I8 V- F% g7 g; C3 Vend
& ~8 ~- Y: X) i0 d/ t
; z' x: Y/ N6 `1 z6 v8 l[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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