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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 q0 i% ^9 t8 C$ _3 V
globals[
# @: f4 K9 A$ b; d3 K8 kxmax' I! H! z& f! n0 O" o# ^
ymax
" h8 m8 L; h% @+ iglobal-reputation-list T% P; j- D7 e3 I. a
; W$ h' \! s7 h6 q9 p1 E
;;每一个turtle的全局声誉都存在此LIST中" ]# x# ~+ ]- y* R6 H3 i
credibility-list
) G- m: k3 B @- F8 c0 K$ c: @* C1 ?;;每一个turtle的评价可信度0 l$ @3 d2 z# N
honest-service. ?% S! s( F6 ^, o1 z7 Q! S
unhonest-service
4 `$ t2 j- O0 |+ e0 X. [; R; moscillation
# i* }$ y$ A) [1 i. {! O+ b9 a9 irand-dynamic6 y5 }% C' T; R( b( X! s* F4 v/ s, i9 w
]. W2 ]: k" Q# G! B4 G: }
7 V. w' p& s, d6 O
turtles-own[4 b4 F5 }) u, S' S" S& B ~ [: T
trade-record-all
- c) n+ A4 ?) ^! n! U+ I;;a list of lists,由trade-record-one组成
- l" l- f# W- H7 M$ `6 Atrade-record-one3 j0 Z2 ^' h9 l. ^- _+ {: L4 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
2 B7 X; N' p( x, Y8 G2 j4 E. Y3 q: V8 N: ~
;;[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]]0 }; D# y" M+ g( m |- J$ y
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]. ]; G& K& K- _' y& U' ^; H
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- H& d. [1 E* P: ^; a; n2 u
neighbor-total
/ J$ V, U- _# q8 ^! z; h;;记录该turtle的邻居节点的数目$ M3 {' A5 ]6 i6 |0 S& h& A
trade-time
7 j7 R4 `% h" j: r+ b5 U7 J+ f;;当前发生交易的turtle的交易时间
) `8 E1 H1 n- \( ~appraise-give/ B# ^$ {4 Y7 j: h, X
;;当前发生交易时给出的评价3 r% j% \$ d3 H( e
appraise-receive. ^9 J3 P$ w+ |' i( E3 l
;;当前发生交易时收到的评价
* f: l7 }, m8 W7 W$ i' E# Yappraise-time+ l) K$ Q& Q) e% R( W' W
;;当前发生交易时的评价时间. q1 f+ \, D# W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! z; A9 ]+ S5 L& G$ F9 d- Ktrade-times-total7 T" d/ F* E& \: e; n) }; s; b
;;与当前turtle的交易总次数0 ~$ a" _* ^& L8 H/ Q
trade-money-total4 x2 N: k Z, J k
;;与当前turtle的交易总金额" R2 a, x2 _+ N' i
local-reputation7 `2 D$ {) H# \# {# ^
global-reputation
& f) M _3 w7 N( M9 G$ d" G6 tcredibility
, y3 k. x$ ^8 G' s4 N8 D9 K& h;;评价可信度,每次交易后都需要更新! }* p* D2 ?6 J$ L v, f
credibility-all
* e. L& f) F% ~/ t+ T$ D" f/ Q;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据) M3 e: |* |+ x& O* o; [ N
9 X/ G6 [8 z T
;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5
1 Y! F: i9 N! f2 scredibility-one
& W% @' A9 R+ P2 k5 f;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
, C+ T1 Z. U3 e: d" Xglobal-proportion' Z* v+ W7 P, ^4 H
customer/ y: R: z; n$ b H
customer-no$ A7 T( T7 ^$ w$ l0 N+ E, {1 k1 v, _
trust-ok
) O1 B# {1 x- L8 q8 b; Itrade-record-one-len;;trade-record-one的长度
# q; ]) X0 @' K]4 H# z' s, w! F3 Y8 w
7 E% K: }8 d# k; q/ D5 S6 `- k;;setup procedure$ p3 L O/ \- d* l) z! w. @! S2 p
) l$ F4 k: @$ L( O; @
to setup+ o: o0 {' }( g# R; A
& H1 R# W( @) L+ w- [ca
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7 d7 M3 e4 u) Rinitialize-settings
$ U$ w. i0 t+ ?1 y+ W' ^/ I/ [% a( ~3 n- q/ M
crt people [setup-turtles]0 V6 \) U9 [( H% ?
% N# {. A! P1 n8 P
reset-timer, G6 n/ W v; B5 Z0 o. A
' I) S" t0 E9 x, c* x: Jpoll-class
7 }6 F$ O" |$ _1 Q7 o3 B! g9 ~" f/ v) g z
setup-plots
- x2 s3 m1 m# W& V# U# L- J' L3 T4 z% F1 _$ f3 z: ]
do-plots9 e6 X! d, q+ a1 g m, I' `
end
0 X: X2 s1 B; J% E. ~, H/ M% o2 t. t8 A3 b O _
to initialize-settings
+ B- A1 a& w* J M5 e' G
# |8 G e- J. S; yset global-reputation-list []3 W" D+ Z( n' ~+ t( @' F7 Q1 e2 _
, \* s" @4 I5 q5 q- M2 B5 c/ Tset credibility-list n-values people [0.5]8 H5 G4 a9 q2 K! d7 o
3 ]5 t. O! w' D5 \
set honest-service 08 s3 f$ O! N) P+ ?9 F2 }
& o9 T/ Z4 S$ O. Y
set unhonest-service 0
* Z/ E# u$ \& F! t% T% v( C5 y6 n5 \
set oscillation 04 L9 j' Q/ s2 v( D) L2 C8 |
9 J. Q1 D2 c- vset rand-dynamic 0
8 s H; x6 w Lend
6 y2 x, E2 d- j+ U% l ~# z" L6 w/ W1 C1 r$ r
to setup-turtles 8 N A) F, O4 D% P
set shape "person"4 z1 }! a) ]6 Z9 ~) L- a
setxy random-xcor random-ycor
5 [2 `0 g" x5 x$ tset trade-record-one []9 u2 E; i, P& M, r3 e
8 E" f* m2 n* b @# l3 q+ lset trade-record-all n-values people [(list (? + 1) 0 0)]
. p/ Y3 s" C F8 G# ~4 k" |0 }: p) W7 L/ p6 {1 D$ D$ L! z
set trade-record-current []+ E. P6 k/ Y! u2 N7 q N* v6 V
set credibility-receive []
4 n1 r$ e! Y7 O8 N0 dset local-reputation 0.52 O: t- `4 m! N# U1 F
set neighbor-total 0
. m/ \: Y% Q% m* U$ K) dset trade-times-total 0+ n$ m! s8 E. |1 J; r) y
set trade-money-total 0
3 F; H8 Z1 ^" K2 E/ Yset customer nobody0 q1 o) u+ E# M. S9 w4 o4 Z
set credibility-all n-values people [creat-credibility]
, H6 u' r. {; j) _set credibility n-values people [-1]
3 w- [9 c! ]7 e8 [: I- fget-color
- n: ?! D- c$ p* F* ^3 [0 a) A( I s" d$ _( F I# j p. E v" F
end3 C3 k3 K" B) M! \
" r" b! I- O3 ]' Q: V- j* uto-report creat-credibility
. T4 F" j' h0 ^: C1 ^; ^& b9 Wreport n-values people [0.5]
* e3 t+ N9 u: F5 M9 r( d K. c) \end
4 f* c7 S' p! s2 |; V3 T
4 v( @- G6 g; c$ O3 O# h8 V: V# kto setup-plots9 \3 u! Y! E* t- p
# A$ S F7 Z( _+ oset xmax 30
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, [% F* F3 g% I# m) vset ymax 1.0
& |* \ n) Y% R! }0 u- w- V4 V& z8 i/ c6 M
clear-all-plots O3 `0 J0 J5 M2 e/ a% w9 k
7 |: d% c6 E' y. q8 F5 Bsetup-plot1
* [- x) I$ c4 w0 d
0 x5 e+ |) [- X0 V3 nsetup-plot2' ?: p' y0 [0 I: c4 C
4 D! \$ K. P4 K0 H5 gsetup-plot3
6 k& g$ m0 y0 ~7 r% B6 Pend
* d- C$ N1 u5 |, {+ V" D5 m- \: [+ g4 |
;;run time procedures
% q- I2 r ~( Y/ w. w3 F& W1 f$ Y E# v& n+ _) y7 r
to go3 m o4 }6 X+ v& f ^
0 o# a+ ]* L* t8 a$ f* |- W
ask turtles [do-business]
' x+ X! x/ p( j0 Yend' n, y8 @( }6 Q" N. M- b) `3 G
4 a6 h& X* H- j- U# H) K1 T
to do-business
5 ]9 { L) T, H# e' m7 W' I" X; i1 S$ a+ ~2 Y; u( U
6 b7 u2 G4 B+ ~0 ` _
rt random 360
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+ T6 n" h F" J$ Afd 1
j* m( J$ F, `% R* D- C& v' S1 ]+ `) M7 D2 |3 A1 `! R Q' [; v
ifelse(other turtles-here != nobody)[0 H9 q+ W B$ ~
. q l$ N! o1 m( M; q% h N- y
set customer one-of other turtles-here
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; | G6 n/ l0 a V6 V8 u;; set [customer] of customer myself! E) V9 U( r7 Z: f. n
# L! x5 ~- Z- f; G) B) Dset [trade-record-one] of self item (([who] of customer) - 1)
/ [3 R1 g* h; P+ l[trade-record-all]of self6 [ |0 Y: @: z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* h4 [/ V8 Y& ~9 x
5 R8 V8 M8 C! ~( [- \# t' q" f4 }set [trade-record-one] of customer item (([who] of self) - 1)" t+ a8 D" J9 w& m i9 B9 i
[trade-record-all]of customer
4 w$ ]' x, e! a, S2 V; O
+ G" {/ e) v, v& h4 h! Vset [trade-record-one-len] of self length [trade-record-one] of self! k3 I: V. v* N3 ?9 e- U9 [
0 g2 g5 F, ^7 C8 l) y; k
set trade-record-current( list (timer) (random money-upper-limit))7 C8 R0 W* P) L% `
$ B2 s- R; P' t6 M" C
ask self [do-trust]4 z0 B: `4 Z% a* w1 J2 I! W9 D
;;先求i对j的信任度9 }) H& F1 L; |: J* H
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if ([trust-ok] of self)
$ g, L! C4 h/ `0 d! Q& m;;根据i对j的信任度来决定是否与j进行交易[
. C# C# D6 i4 X& ?5 Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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; m- j' z1 _9 Y9 {, V% B* \[" _2 ^+ ]0 ]6 E$ l7 `- e, Q
1 B' E( U3 t$ e! y* T2 k0 w) Xdo-trade% u+ |2 `& s g& z: ]. K
6 ~* V7 N' G6 m( n+ D. `/ }update-credibility-ijl9 M$ l2 ?9 o' ]0 h) R
2 S) P! O; o* G4 g4 s+ hupdate-credibility-list( n, g+ x1 T0 J4 d
1 H$ e, F: [* y" F* K! |
( w% O6 \. h1 u3 X' Wupdate-global-reputation-list
0 i1 G! m2 z R8 x d, X
0 b, C3 |! g! S( ]9 ^; Tpoll-class I9 | `& l; D
, L- k* a$ G0 H" B( N) q. K i6 ]get-color
) v$ e# j9 Y" Z0 T* H8 G) K/ t
]]7 \0 u6 W0 Z& e: a
8 e, o8 B+ \. M. h5 H' {" a* v;;如果所得的信任度满足条件,则进行交易8 }1 g& z( g1 A: _ @, X, A: Y
- P+ |" k! e# N& l# v- ? A6 |3 Q
[
8 \, d& I, X4 \( W" W
% F1 ~8 a) X1 ^8 \/ f mrt random 360( }* q |! _/ Z5 [* e
9 {1 q# s4 A: o2 S" \
fd 1
# j2 _/ a( Z; I, y$ w2 N7 U
/ d% D- M! G) m) l( \' o3 U]
5 z5 i4 [2 K6 I, d5 T7 o4 O3 c" r, V
end0 R- `$ f! A% C
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to do-trust
0 a0 N0 |4 J: U! H' Q( w4 j/ n* pset trust-ok False1 K' Q Y1 t6 T$ O$ b
6 l) J+ N5 f7 D
; }/ U1 a3 E* F7 v; }1 Xlet max-trade-times 0
6 Q' u# _& r& L' Y |( mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 j7 \. X7 N4 X' x
let max-trade-money 0" {0 ]# B! H* i3 V8 |6 z/ d
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 q, E8 P P% W, `2 }let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' X1 F1 G r* A6 u
! ?6 [& M9 Q+ ~: y2 P, M0 P
4 N l" g/ |4 e. l8 N. ~) D) Zget-global-proportion
+ j% A* r% Q8 O+ Ylet trust-value
+ O- y9 c1 E. J' s# N9 Klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list): ], Y( \& v6 C7 W
if(trust-value > trade-trust-value)1 {/ n, x6 c0 _6 {% O) ]4 N$ I* D* U
[set trust-ok true]
' x* \# Z5 i, G, Pend
/ S- ?1 K+ q9 I8 v% W6 K3 k9 z3 j* K, @
to get-global-proportion
! y5 U6 s# g5 n5 ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ w; \: t& g" \; }# i[set global-proportion 0]
9 G g% ]/ |8 S9 ` l0 \/ e7 _. V$ o[let i 0. n s6 ?' o8 u. F; u
let sum-money 0
, v/ p- C" L1 P0 c* Zwhile[ i < people]$ C5 K, k* o' v
[: o, z( r1 f9 ]
if( length (item i
$ _9 W: D. z9 T; t, f& @[trade-record-all] of customer) > 3 ); Y% ?4 h2 f+ M; b
[
5 A% I5 F! H* \* M! c& @* ^set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ Z4 o5 m/ j- M1 J2 d- f E]
8 F6 ]7 C0 K0 S6 b* o1 s]0 ?5 X% _( ?+ n( a
let j 0
3 V4 w+ x5 n5 {0 F7 L; hlet note 0
# f4 Q* M+ s5 t; d* ]9 bwhile[ j < people], P& E. M: M* V( P$ |* U& |! V( K- }
[
6 E) ^ j/ f" X. e2 J1 ?% }! hif( length (item i
6 B; D1 W5 ~: C% ] S[trade-record-all] of customer) > 3 )
( s2 n9 E2 D0 I; A/ v! s[( e0 v- H- g8 p7 [( S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ @8 |3 }" ]0 N: V0 u) A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' A1 g. w& q' E
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) H. T- Q3 T6 p* L# S]- D/ _5 ^4 S* K1 W3 v
]
/ r; Q/ M: O' f! w5 J- x" yset global-proportion note
) @$ c# A3 X' c% L, u/ K- T, l]7 _2 f+ {8 h3 F
end: G9 J- T1 `9 ^7 L4 W* a8 L" b
. c7 [( O3 q4 }
to do-trade
/ a& v/ y a9 q6 Q Z+ X% u;;这个过程实际上是给双方作出评价的过程0 H# X: i9 L/ _0 m# s+ i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' G; a, |7 b! Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ [. ^ V; C5 R. p* [0 s
set trade-record-current lput(timer) trade-record-current2 s* I! h9 E* ]; _! V* H
;;评价时间
4 a+ Y' `6 p* r) @* Gask myself [
% @- F; l3 s, t8 _/ B" fupdate-local-reputation
# m4 k, h K6 Z& I* R: Eset trade-record-current lput([local-reputation] of myself) trade-record-current
k" |2 c( a6 y: i( f" E]
& K9 I3 `! X7 H$ l5 f0 v: `3 ]: uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& S* [" U/ S. \2 }+ @, T;;将此次交易的记录加入到trade-record-one中
- D2 O# O' u: b8 Y5 R8 wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) } N' ]5 V3 x
let note (item 2 trade-record-current ): N6 q6 R& S B j
set trade-record-current
& p0 w7 V2 U! c$ P; r; }: M) P2 y(replace-item 2 trade-record-current (item 3 trade-record-current))
9 R% h2 ]0 e0 g9 ~( x6 Yset trade-record-current; I$ _9 D* t* u% \
(replace-item 3 trade-record-current note)
+ x, D- g7 Q8 G: `- J5 I; P! _& v
7 K9 B j+ G1 f9 k! H& |! d. S
1 r2 m3 x8 u- }. j; Jask customer [8 R$ j: }9 t- f
update-local-reputation9 P5 u: _ ^; T( g* y' n# M
set trade-record-current! E6 c/ g0 T* [) Y1 d$ v
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ @: x$ S% |3 `
]
3 l& g8 S( p- G
& l2 E. S' g# m9 k4 I$ G
" r1 `3 p- z+ k& z. H( Jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) @8 C. J: I. h3 V9 m1 M0 v/ K% m% J+ }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 w5 B% n d; u* J% W# f
;;将此次交易的记录加入到customer的trade-record-all中1 D3 i0 `+ p" z5 g
end
4 f, W) w( P0 x( P0 B% @# ~3 S" B1 F4 F6 F
to update-local-reputation! t s; U6 p. x! n" h" [
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ s0 {! ]' l! Z# W! e+ n; u2 R1 U- r; q8 T
$ ? C: {. m7 u, K. p2 [: o;;if [trade-record-one-len] of myself > 3 + T9 I4 ]; d, m: ~8 R
update-neighbor-total
* |9 j9 O) E- T( b;;更新邻居节点的数目,在此进行
) ~8 Q" U3 [& Zlet i 3: m/ c) r3 Y- t0 n2 g6 i4 X
let sum-time 0& A9 }, E7 f( a+ U) o' v2 [# |
while[i < [trade-record-one-len] of myself]2 W2 v7 ?2 E0 l9 r0 I
[3 `+ d: ~: o& Z: M# c4 ?+ V$ o2 F0 y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! X/ O" L" F9 s3 v' ]$ p% a+ R+ qset i: ^" X6 d7 L6 l6 p
( i + 1)
7 m T5 I$ v' @1 U; d], t Y! p2 w9 P+ `
let j 3* J$ K% [8 m e$ @/ V
let sum-money 0
) R4 X$ \5 ]; s. \# B) }: m, ]while[j < [trade-record-one-len] of myself]
* o7 }+ w& a: J0 W& l0 }[
& L, x# U' c8 T, eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ ]1 J, a; w' k- Jset j
) T/ f5 {2 z. W* V( j + 1)
" E3 n) [9 Q% K) t]3 {( ^9 W# d9 n9 W6 w) ~3 ]; @
let k 30 t) m* M( e0 u) n( \: _6 O |) |
let power 0
5 S# u& j2 |( x) E3 F/ Alet local 07 a* V( |$ L; W5 a* @
while [k <[trade-record-one-len] of myself]7 ^, {, q2 D; ~! i
[
. B" x3 B- Q, ~( r+ S/ y ]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)
8 ^9 z( ^. h5 nset k (k + 1)
4 m* l7 x2 _# I+ W. d+ q]
) J. ]6 u* ^1 pset [local-reputation] of myself (local)
3 n) Y& L3 A* O9 Send
* I* `4 K4 x3 _. p+ `7 _
7 [) Z8 D9 B7 yto update-neighbor-total2 _5 _( B5 `9 }3 O" b. F* i, ?
9 [, ]& _4 d$ Bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) a: \) g. O1 R; t! W
. b' `$ ?% L$ I8 n) `2 B0 m' r) H
9 I% w: b! q$ ?2 Hend
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to update-credibility-ijl 9 _9 c' I2 |; l2 Y; }. a5 ]
, U, o; {+ D) n9 v 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。+ j( M. j. x% G& l* M' |/ j
let l 0
& q- E2 [% l4 H6 ^while[ l < people ]0 r6 \, X" Z7 D1 H0 h! 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
) e i( I9 O$ C) P0 v6 O7 `, ][
! [' R% C6 x; i" [) Nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
`) T% R3 X" o6 ~if (trade-record-one-j-l-len > 3)$ q% H0 w' ~! |5 u! k4 n
[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 L4 M R5 A" P& |2 ~- N
let i 3# h! E6 @8 {. Z) N+ ?
let sum-time 0
+ I" s6 ^& O6 [1 e8 v% X) C5 @$ Nwhile[i < trade-record-one-len]$ O% i5 t' u9 N* a# d) M
[
1 U% U) |# J- @' L- nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) A) K# X1 i* q/ t) G
set i# @) @5 ^0 Q6 ^
( i + 1)0 P& t. `) d$ ?& j) ]
]
2 [ G4 ?) b! d3 j9 Zlet credibility-i-j-l 0
( i6 v) g8 E; g;;i评价(j对jl的评价)
* Q1 x9 q' g, N$ G7 d _* Elet j 3: ^6 X+ l8 q" o, Q
let k 4
5 ?. g% ]* I9 A9 a/ C/ Awhile[j < trade-record-one-len]2 x% X) J2 D- p8 G2 v6 A% i
[
4 G0 _! r2 g8 G1 T6 Gwhile [((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* a% l% b" J: c9 H
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)5 b M8 r3 q& D, p
set j2 O' |! e* v; O7 {! U# _0 x
( j + 1)& l" q4 ^, V3 o4 o6 ~/ e# ~$ X+ F
]/ T4 K& [+ G" Y- q
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 ))+ d( @* E0 x5 _) _0 G$ B. p
- ]+ T, |/ I9 u4 n
- X! V9 p* e5 O, C1 b; J) i6 z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); e4 r& S# v% }( Z6 l8 c
;;及时更新i对l的评价质量的评价
# A7 G0 }* M, T8 n, vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 J! }3 w* T7 G+ W. {set l (l + 1)3 c- V* |$ {; o8 j, E6 V
]
: B( H% I! d' \) {+ @- C4 P& uend" i, ]! q- c4 }3 w6 P
5 D0 ~+ k' v% v: C8 Vto update-credibility-list
' ]! {9 @4 x' U$ U0 Q1 ]let i 0
/ w+ O, t6 n: v4 |0 Wwhile[i < people]; O" G8 K' {' }7 v; m
[
& W Q, |6 D. a$ P! Nlet j 0, e1 g2 A, q; C8 V" j
let note 09 I' @- P" ~ Z3 |) }5 R6 |
let k 0
6 J8 T% v8 N' L+ ^. G* @;;计作出过评价的邻居节点的数目
' l* o+ d' J. a8 G' S ]$ |+ B# bwhile[j < people]) w5 i$ s! [. K w, U3 t
[
3 b. p9 b3 b: f1 m3 c& v0 zif (item j( [credibility] of turtle (i + 1)) != -1)3 Z0 t2 @: G$ c0 \$ l
;;判断是否给本turtle的评价质量做出过评价的节点
* y5 I3 D, w( L$ a9 q W6 Y[set note (note + item j ([credibility]of turtle (i + 1)))8 k2 }6 e3 s) z8 f( R
;;*(exp (-(people - 2)))/(people - 2))]
3 ^ d* o8 A5 _7 S5 }set k (k + 1)0 C4 _# n; q9 X5 c0 c) N4 x
]
8 }4 Y+ n! v7 d( X7 B p3 xset j (j + 1)
' P+ P3 Q) W: x; H]- C3 [1 D( z) P! B
set note (note *(exp (- (1 / k)))/ k)) h- G+ j9 e x) a t: s$ p5 Q
set credibility-list (replace-item i credibility-list note)1 e& G' R1 @" G, N
set i (i + 1)
; B* ]6 V" }3 F, ]/ n]5 X ~; l9 ?+ M0 F9 H2 R
end
. ?3 y1 _5 ]; l% g: b$ N; p2 o2 w9 h6 b5 Z" |' E) N
to update-global-reputation-list
% t- _. l3 k2 j4 O* V4 Olet j 0 I* [9 z. C5 W, D" t
while[j < people]
% l+ v$ r6 @# u" Y[
g( W1 y9 N( ~6 J0 z8 x' vlet new 0
: F( Y! H8 W% f) u% M6 r% c5 b% k;;暂存新的一个全局声誉$ a/ @# o; Z2 e8 X' `( K9 S
let i 0
4 z, m9 d5 ?, ~let sum-money 0$ z l: d1 n5 s: q' r* U$ v
let credibility-money 0
; [; A3 ]3 J8 s4 ~. |$ i3 swhile [i < people]+ b) E" ]+ M" y8 ?2 _4 R
[2 D" m6 ?2 J+ I- D) b5 W) z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), j7 ]. d) W8 {9 M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% ?( Z p8 E! e4 k8 E8 [+ Fset i (i + 1)
+ r. h0 u: K: X; g0 j+ }5 |- Z]! `( U. }3 d) v! z6 l- B
let k 0( @0 ?1 o' X+ i& C) O9 e2 O) L
let new1 02 k4 e% f8 c+ d' C
while [k < people]' R f" X; }8 @
[+ p2 J. J( m+ I) t! L7 i8 O
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)! _8 w/ F$ N/ s9 _+ Z
set k (k + 1)* ] l& w9 ]5 u! `6 |' e8 w( i
]
9 h0 E, K0 O) ?/ F# [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 L7 ~( R( f3 W. n8 x0 N
set global-reputation-list (replace-item j global-reputation-list new)
4 a* R( e B% s# bset j (j + 1)! L* C/ f# j- F
]
- n* o. j* @2 X" Y1 b. b" ?0 Jend
; A# W2 C7 ^/ z. U- H+ ]3 ]1 X# K( `( y. t2 f1 N
1 \7 R. z( B" L8 m3 I& a+ e
- I$ M/ |# E1 U. q7 \to get-color# j& ^6 ~5 p* ^' H, h p
6 C% M1 W9 w& o" r8 n" oset color blue8 _6 G" I" ^5 A. U! ^0 Z# v
end Z8 p4 w- j% \- g* Q) z# [
9 m# L9 L& N+ L- p' D: b
to poll-class5 e6 ]4 [4 J2 S1 n0 K) d# a! d
end% Z5 o4 z; P' q( G E* Q4 ~3 E
) I2 h+ @% L5 N$ g# A0 f' b/ ]% C) |to setup-plot1! I4 U) |' `! u1 p
/ \2 x4 v: Y& u
set-current-plot "Trends-of-Local-reputation", @' m# h) b% c, O6 z
" _8 x# `' a4 Eset-plot-x-range 0 xmax
) [5 M5 |; I9 i6 o/ @: u% N4 W' ^( ^6 U0 U" D3 k6 @
set-plot-y-range 0.0 ymax b8 Y- I' U& Y- x1 C* J7 {2 f/ S
end! T. r1 O4 w0 I3 C
, {! _" G% _4 V6 C$ i# |/ t; Pto setup-plot21 U3 Y. b* n! t# ?0 x0 A
9 m1 G1 B. y2 V* J6 zset-current-plot "Trends-of-global-reputation"4 ]1 f7 j# ]8 {- A3 T# [
7 X M$ i* y8 U$ _. b6 T1 e, @
set-plot-x-range 0 xmax
0 k& }, j$ w9 o+ F4 v' K+ _% x, O/ M* p6 F/ f+ `9 W7 E2 G6 ~
set-plot-y-range 0.0 ymax
; G/ A, b* N" x+ w$ e6 Rend0 h% h0 U: W8 ~* ~$ U. e: Z$ M$ Y4 a( B
: q; y& `0 G8 K% R( p! V- d- t8 g
to setup-plot3
% o/ Q0 E# A$ T" J: w- x! o% \, L9 g" B/ l/ ^ H) I
set-current-plot "Trends-of-credibility"5 o# E) _0 c6 q: m1 T9 |# k
" i) l, ]( ^ i
set-plot-x-range 0 xmax2 v6 w1 W" s' {9 _9 |/ O W: D
( @7 O" N+ l) V Q. vset-plot-y-range 0.0 ymax
" ?/ S( o2 u. \/ x1 Pend7 M" @/ H, A" Y8 t9 C+ \
2 ^ p' b/ ?3 e; C. r* M) ]4 D
to do-plots
. x& _) J) P8 H5 I- O) T: S* i7 ]set-current-plot "Trends-of-Local-reputation": C0 y: n" l v( K7 H8 i
set-current-plot-pen "Honest service"
! g- r% O, V& R3 rend
9 l! a$ q. H+ M. B" Y. z+ B, w. s, r5 d' Q* b" D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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