|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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& I4 k: y' A) Q+ S, D% Y( y
globals[
2 X8 O! N$ t- A8 I6 c9 `xmax6 u& b* {, n+ m1 A& Q4 j
ymax
$ p, A& k8 w+ d. m" {5 A# bglobal-reputation-list
8 M7 G0 R( H6 W. @/ k6 J2 w! B: q X z% a# x5 P9 U# B
;;每一个turtle的全局声誉都存在此LIST中* N: n2 s0 }8 x0 e& E/ F2 V0 S
credibility-list+ K& {, `1 H' U& K, g
;;每一个turtle的评价可信度' E, ^% O! W u8 K
honest-service
% H& D ?2 y2 v% R$ Q4 N! e8 Hunhonest-service: r: \" w3 e& V4 ?4 V0 \$ I* @9 i, z
oscillation
" }1 W8 m* n+ D6 Q4 Orand-dynamic
' r6 V( T+ |1 M! a1 {/ i7 x) Q" l]
1 w) E! M. T' q
, `8 k: D- H# E( a0 B. Mturtles-own[1 Y1 d7 n. b* L& S! {( y
trade-record-all( r, |! b5 X# q, S
;;a list of lists,由trade-record-one组成
. k9 Z, I, j' Otrade-record-one
3 t& N) I8 X* 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
' W4 z8 E3 h2 w# F, d/ `* `8 v( o' S6 X4 s6 X1 e
;;[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]]
9 K3 I2 V; M% otrade-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]
5 L; W( F n1 E. [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& S3 G+ y1 U G+ ]
neighbor-total
" O0 G7 B1 i5 O* U;;记录该turtle的邻居节点的数目
0 D( g: C0 b* l4 W( ~9 z" ctrade-time. k5 T( O5 U- ~" j
;;当前发生交易的turtle的交易时间3 N( ^$ p) P& g
appraise-give7 t$ c! N" G! g
;;当前发生交易时给出的评价
5 p8 n* E( e0 Z3 j/ C3 f. ^appraise-receive; m7 k d7 U& W2 B& Y: M- [4 O
;;当前发生交易时收到的评价, W4 X' I* }# y* C
appraise-time& }8 `. g5 w. d( g. P7 s, x& M: D
;;当前发生交易时的评价时间
4 _: K5 {( w; `) k. Q, g& dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 A( i! z" x) U8 w! p) p
trade-times-total
b- B x. P! Z- ^1 I! r1 i6 f0 ^;;与当前turtle的交易总次数& u) B0 X& ^$ v" @5 i
trade-money-total
" s0 D, M- ~' }: \4 @8 W' h;;与当前turtle的交易总金额$ d3 l6 w b& @ \; [% ]. |
local-reputation
9 m( _0 v% D5 r, ]1 I- K- Fglobal-reputation" |+ ^5 A; [6 H6 f
credibility! _4 D+ M( q' y' Y8 a
;;评价可信度,每次交易后都需要更新
; p6 N' h) c, @7 K8 h( v$ dcredibility-all
2 X$ C8 X1 D9 a( m;;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
& w& m' ?# M& U; ?/ D" p
( e) M) Q4 e$ L/ s;;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
6 e5 X/ w) C/ l! a$ b, i, a Dcredibility-one4 b% ^9 F! o, B3 g% d
;;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" Y; n+ N! ]3 [+ Q* B
global-proportion6 d2 h2 S0 D) d8 \8 f5 U
customer
+ s- Q' W5 i+ Ucustomer-no
$ E" X+ k! j5 r* Q# Q$ itrust-ok' t. Q, U c3 T" W- |6 O7 x1 D! W' V
trade-record-one-len;;trade-record-one的长度
% i- b' v: ]1 f* s3 j], e2 R$ C8 }8 m# T2 b7 W5 J! v/ q# N
7 F2 V' h0 P# j+ G;;setup procedure6 S) w5 M5 g# |# o$ W: U9 h
/ @( {, Q5 h- f9 S! k6 S
to setup
" z# ?; B A" D0 Q8 I U8 h8 k/ q6 C' e
ca9 d0 O! E; R' R7 s `* D8 m8 k1 A
9 @: k- w8 f, X p0 A+ c
initialize-settings- K; Q) q; i1 |
) Y' b' }4 ~: C. A. U" xcrt people [setup-turtles]
$ V, V A5 f& v0 R1 I
7 C( L; P0 A$ K' \8 [reset-timer/ T2 g, G- B) U
5 j1 m+ z+ g8 d) @1 I
poll-class
( r* m: d o+ k8 ?0 i5 z" _' q5 E& j3 _) Y) v
setup-plots1 K7 f, I* o8 `) T# E: s
9 t) H) [" m* t
do-plots2 V3 Q. u8 o2 W" k4 o- v
end
7 j# u$ J* {4 |+ K2 }1 T* m1 |. k; f7 {' q# t$ H7 R4 ]# [
to initialize-settings
8 ]+ l. C" K1 ]7 S, c3 Y) [
" t: ]% W% k0 v9 h( Jset global-reputation-list []
& C$ o7 _: r0 F6 C9 h6 ]
" C9 j/ `, k0 |+ l& ]+ v" m2 }set credibility-list n-values people [0.5]& q, L& P( t1 n7 |: {/ h
O; |' a" C6 E q: z' Y' O, Aset honest-service 0
$ f1 A1 F0 w- C7 C5 R0 H1 X" k, G j' p, ?" I4 ]% U
set unhonest-service 0* R1 N# R) \. {! }
( |/ |/ Z, x, l) T) l7 a
set oscillation 0: |1 H8 q0 M# ~7 ~- k& K- g
0 s$ i+ F. J4 q4 B( m0 jset rand-dynamic 0% V! m: q! p( x) l8 X2 D3 o# ^
end
/ e& g# l, `$ A5 ]; @- B& E! R$ ]; L, T
to setup-turtles " J, }) ] q) N
set shape "person"/ G9 O$ y5 {. h& e+ s8 ]
setxy random-xcor random-ycor% u' Y) v8 {5 y+ w. Q: C4 b% c* |
set trade-record-one []& ~( B. l# A6 R7 J
* ^, v" d. v) F. B& i/ {set trade-record-all n-values people [(list (? + 1) 0 0)]
" Q6 n* v: l: Y2 B0 k( `: {* S+ i
set trade-record-current []& d+ O( \- \3 r$ w' p+ s4 k
set credibility-receive []2 U' |/ K1 p- P7 g! |( v
set local-reputation 0.5
1 u# m5 O1 U9 z1 N7 y( P7 c3 K+ lset neighbor-total 0
" V; w! X8 f; Qset trade-times-total 0
+ f3 L' U1 J$ f+ F: q2 sset trade-money-total 0
U. ^& s: O" `% g& B3 X8 |set customer nobody, g1 r+ n' X+ d
set credibility-all n-values people [creat-credibility]
9 H9 ]6 y" M8 J9 V$ i6 K9 Y/ _set credibility n-values people [-1]3 t' \ X. Z- q( s6 B. n3 V) k
get-color
3 n- ?4 K( x8 Q5 C5 {
2 @ B0 o* h# F' R5 h/ [end
7 |3 c8 z; \: f: ^
0 O- ~/ V; k4 w2 P) @9 ^to-report creat-credibility
0 y/ w5 f; M- d3 y' u& j' treport n-values people [0.5]
- I0 f) N( Z: J1 | d6 F1 j8 `, xend
4 ^3 W+ Q8 `7 Y) H9 o2 h. c5 b
to setup-plots
4 s+ s& Z% M0 s) g/ O% Y9 n1 q
# f$ Y: e2 k$ xset xmax 30- _6 B' C1 D; i5 ]5 ^
" B: D4 w; f6 wset ymax 1.0( e4 D8 L ~& e5 B& N/ C8 c/ F
5 n3 `% N* N+ i# ]' o% m% Aclear-all-plots* ?: u. D$ J, s8 \8 ^% M
! h7 e! G* {# {setup-plot1 m0 h0 N/ d( v3 G
7 w0 c4 W) Q E5 F! r# i
setup-plot29 r7 ]# p2 e: Y6 Z
9 P6 y7 `: o8 w0 U0 Asetup-plot3
) ]. }3 K$ |# B' H3 _" gend! f1 O3 Y5 N; G/ D% v, F6 l" L1 j" [
, X1 f8 V& Q% ~' Y$ E N
;;run time procedures( R& m" x7 W5 e. G B# u6 c! ?. B
& G) ~% I/ O( Y/ p, u/ v$ U: c) L
to go
5 f* C+ p6 n8 E- t- B+ ^# Q" J }# Z. R
ask turtles [do-business]) C* `0 @" H, J( [( v% n7 d
end
* w2 i3 k, j7 q; F6 O4 ]! ]( h9 X, J7 J" d1 I, [5 _$ h
to do-business ( Z1 j5 Z$ j& ], r
8 r# n2 e! Q! T
6 y& |, f: S; r+ F& |rt random 360# K3 b# x. U! W4 h) X3 W2 a
7 U) }5 i" [ Efd 1
9 J) H( Z3 h( K1 C' K8 R, L7 e- y0 N) Z* k, K
ifelse(other turtles-here != nobody)[
4 V2 T) m/ b' a4 F0 z* r( b# o& {! S- [! k- M
set customer one-of other turtles-here, a, r) _, x! H
; |& F% l: {$ N& \- X# H; {- D;; set [customer] of customer myself
' B: h: K) ~6 e4 d) I* x+ p* p/ Y- Q: U* e1 A" W( ^& ^1 w6 }
set [trade-record-one] of self item (([who] of customer) - 1)
" ?0 `( k; @% K; J# _% i. P[trade-record-all]of self
- D k9 G b& p; }2 c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 q8 q+ l" S# L4 Y" c' Z
. t% i4 c8 I# r) Pset [trade-record-one] of customer item (([who] of self) - 1)5 Q8 M5 F& Z7 T) B) y" e; e/ ?- O$ H
[trade-record-all]of customer, D& R, r) ^# w e
% g8 K" T6 q8 Y0 s1 D0 S P9 G1 Vset [trade-record-one-len] of self length [trade-record-one] of self9 Y; s6 L. c: X& ^+ V; Z A% l, N5 w
g" r- G2 d S6 l9 L6 R% Aset trade-record-current( list (timer) (random money-upper-limit))* Q% D% k& d/ E( R' J7 I
. H1 {4 Z/ k( m& Z
ask self [do-trust]7 M* J5 S* b$ g, ?, I9 v% s. I) V3 [
;;先求i对j的信任度
0 z/ U# t4 p; r# @/ A6 Q: A
) I: l6 [* C) Tif ([trust-ok] of self)$ d7 A! `: o) {: J
;;根据i对j的信任度来决定是否与j进行交易[" h( B; G; I+ J9 q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; T0 V2 S$ f z3 m4 s) {
' g8 o7 S' D( O6 R5 q
[( s! G1 U, }) B2 `5 R
) S9 v8 z0 ~+ ]- R# J) e
do-trade
- \$ ?5 X! S7 o2 b e4 u5 s3 Z) Y9 H( } ?* P2 O9 L6 f
update-credibility-ijl
9 \4 I, N- k( O
' i' U. ?3 F; r) ~( Kupdate-credibility-list( ^, S" F1 t5 _4 v2 O$ n
5 c c" }4 P+ j/ W2 I
* s+ m: E) C; P- V. `) B# L4 \update-global-reputation-list+ I# h3 K1 t- T# s2 R7 S6 `/ j N6 q5 g
( @& ]- K+ |, M5 ?. e
poll-class
4 n5 \0 G* T x9 \+ p! X; P `1 P# y" Q% J4 W8 [% ], S7 q
get-color
' C5 z+ H1 v& b8 r' D" o! v! g E5 H8 ]# q: i! h- P b3 ?
]]
, q: b- g; ^' A; d) J& {2 s
9 a. J, ]8 c# E4 H9 Q' \;;如果所得的信任度满足条件,则进行交易
( n# Y- J4 V5 T! Q- B
! |* Z7 p' Z! p3 U, W- J, C[
; ^7 o r& K$ J9 i9 t8 D( w/ p# o2 C
rt random 360
) T+ O) }5 H& }6 l/ v+ a
1 X- F$ p6 |2 [* U1 r+ m8 Ofd 1
$ I" H* k3 S9 Q' `
) |' @1 R$ L* U' b]* b' R$ a& a$ B3 E( A% x
& x" p3 x5 w4 R, h ]+ }end
: R W% j' Z4 H& x& P' _( {
5 u O& k& z' \4 Qto do-trust
5 L8 V, L' o, o" j4 hset trust-ok False
( d& ~ J" a) U7 u! J( H% _. H) y, l' a4 \
' T, N+ W9 M3 M& Z* ]let max-trade-times 0/ n6 p3 C( J5 H9 \ P1 f' i
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 u0 ~5 ?- {3 r5 d! |& i1 E T, \
let max-trade-money 0
6 g: |# j1 ? M d3 Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ L7 A1 t7 a" S* D. @" p1 Ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). J0 }! Q( Q/ q6 H1 j
7 p) k) S( \( O7 s
0 @, t5 [6 ~: S! q
get-global-proportion
P- z" v2 S$ w1 _: c5 m1 alet trust-value
6 D: @1 S5 c; E( b. rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
( H7 r$ ~8 y% @1 O, a* {8 ]if(trust-value > trade-trust-value)2 M# N V2 O- H# e; ]
[set trust-ok true]# n5 L, |6 ?+ P' T
end( W3 _. @' k, z% ^, f1 p& ]# h0 z
3 D5 f( r1 ^+ o- V2 Ato get-global-proportion
# `# t/ `% u' {. M3 Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: m" u/ F. }/ A& A[set global-proportion 0]( z4 @2 p: J4 B; j
[let i 0
/ G7 N; a8 t1 H0 Y# [let sum-money 0" w8 }, |+ t0 P* ~9 H) G! z3 f
while[ i < people]
5 v& i' ~$ _& z# T$ Q3 x, a[
; m7 }& A1 @' o, R( c+ e4 M: aif( length (item i( @$ d8 t @+ I0 v) `. }" v
[trade-record-all] of customer) > 3 )
& Z$ F0 J) x, [- [4 k[
0 L9 Q e+ G( `set sum-money (sum-money + item 2(item i [trade-record-all] of myself)); A( z) @; \6 z
]
# @8 e) e# Y3 A B* L& Y1 b9 O]- o3 \) h! P& B; E
let j 0 M8 J& |# L8 } P, K/ Q" C& P
let note 0
7 V" Y" M7 u u3 wwhile[ j < people]
2 Z4 b- ?/ J" v7 F+ y9 q8 |4 ^[6 R! T; r& d/ O8 h+ ^0 w2 K- t; U
if( length (item i' K1 d# g E2 Y6 H
[trade-record-all] of customer) > 3 )' Q: a) Y. M) j8 [; q9 @- Z
[; ]6 Q: v/ {3 d1 \ E+ |4 o6 G% d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 G$ u- q1 g0 W8 s+ q' I: y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% z) Q" ^1 Z" z V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ @+ ? k/ |; O+ E$ i# O]9 [6 Z. K @4 p% ^3 x. H5 m( U( c9 I
]" T3 {: l7 c: k `& | R
set global-proportion note# }" ]$ ~6 B6 c
]; @( t, }4 I4 G: d$ O; D0 A! a6 j& L
end$ \) F: ~. v+ F9 e7 l
2 N' O; Z |8 X3 L8 d1 [9 n: K7 ]; Xto do-trade) e/ a( z2 p+ D% ~4 @% n: i1 W
;;这个过程实际上是给双方作出评价的过程
! b) T2 m' T8 h& t8 e) y; R+ F& Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% ?1 l9 {9 _9 fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% ~5 ]- l% W6 u& Cset trade-record-current lput(timer) trade-record-current
- e3 \8 c3 C- g. n9 o: |) N1 R7 H;;评价时间, S0 g% G6 f$ j
ask myself [
2 S F1 f* I4 f5 O6 H! i& ?$ Wupdate-local-reputation
* k9 Q* d; }4 U3 H% ~set trade-record-current lput([local-reputation] of myself) trade-record-current
+ v/ Q' O- A+ W: d]- N4 L* J* J. r4 V( f
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ y% M& w& H/ w- J S" ];;将此次交易的记录加入到trade-record-one中) @7 I0 ^5 h( {: z1 S2 _$ ?0 z6 G
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 ~ g3 e) m5 L) P+ q) Nlet note (item 2 trade-record-current )* Q' e( J9 c0 }% x7 k, C! J9 d
set trade-record-current
7 u9 K) I- Y) z9 y(replace-item 2 trade-record-current (item 3 trade-record-current))! _; s Y' [9 Q; w! o* V; x
set trade-record-current
' Z$ K: I4 T& W2 u' A- ^, p(replace-item 3 trade-record-current note)2 F5 ]6 ?6 r: H2 A2 x9 N7 |9 U, c
- p: I1 _* Z# V; E$ R
0 j% N6 ^1 Y9 w. y- P; fask customer [
7 p5 S% K2 ?4 J& s8 L7 [7 jupdate-local-reputation
! h: p- I% R. yset trade-record-current
8 N# _7 a- m( t! `; t1 y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( J6 l1 S5 I. v0 I8 A! S G]* V3 e7 e! Y: _: h* n. `( b8 g3 }. p7 C
4 X0 R. k( {# [ K) r2 |2 @ q
0 @; w4 w) G5 S% L1 w9 oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ j7 h. y8 c) Z1 x6 a
4 L8 y) E; b& A# L1 @
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ D: t+ s7 b0 I$ Y" j+ E
;;将此次交易的记录加入到customer的trade-record-all中
2 i1 b2 i4 f# A+ G( R: send
5 Z% g7 X" k. X8 R9 a, d- B; u6 r
to update-local-reputation
I+ ]% A7 z. }$ t- g$ Aset [trade-record-one-len] of myself length [trade-record-one] of myself& L+ _! S' w: H
% h% v0 R- y7 W) o! F! F- q8 T# H: Z; t8 e
;;if [trade-record-one-len] of myself > 3
& i) L7 p) x0 Qupdate-neighbor-total- p- r# L6 j$ N4 o9 |6 q1 F! N1 X+ c
;;更新邻居节点的数目,在此进行
+ n: _, ?, e- a0 u) Mlet i 3 Z) c' k Y: I! a
let sum-time 0
1 n" m( B) T; F' L) M# s% @while[i < [trade-record-one-len] of myself]
1 I% j; M8 r( n# x5 H1 l+ z[
3 r- M+ M2 h, M% r: Y! |! |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); |( t e- C/ A! J; @; n
set i( [ U: K6 o# G- }; M8 }4 B
( i + 1)0 E) u3 z" U0 B7 S9 t" v
]
9 ]7 ^$ \, J" H% R. ?; D" l. _4 blet j 3
) T5 u8 F |! t! G0 n$ j2 W3 Ilet sum-money 0% M3 i3 j6 V" U2 Y4 [* X
while[j < [trade-record-one-len] of myself]0 A8 a+ u% X% r/ }" X$ Y H
[1 z& L' t% @! w. g2 a
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)3 E Z5 Z3 l: U- \+ f+ c
set j
6 {/ O# r5 @" ~& d( g6 f+ q& m( Y( j + 1)
3 ]; a1 a7 G4 B$ E) `]
; M/ ]# D u' vlet k 3/ ]0 U1 b! c0 ]7 Y& @- F
let power 0
$ x# p' @: d. Elet local 02 S7 b8 O% {" M: [2 N+ B! @9 F: a
while [k <[trade-record-one-len] of myself]& B d9 V2 Y4 m+ U3 s$ L2 k
[
. ~- B6 }2 o9 _) q, `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) 5 k: h: n. G4 U
set k (k + 1)
1 ^& j! q- x2 C' ]4 k' T]
6 J8 G. z" }; T2 C- ^set [local-reputation] of myself (local)- y3 x; p& U% N1 V! l5 {( f: A
end
- M. W# }9 t K/ f3 K7 u+ C9 ?# i4 v: b/ f* w1 }: J1 L
to update-neighbor-total' V$ `, \' s, Q2 P6 L! i% `0 b
. j) `* t$ j3 z5 Jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ C6 u8 c6 M- ?+ Y4 p: K
, }: O; W: r* S4 E$ J7 O7 s0 b' }6 f: A4 l; S
end9 C+ g% r9 A0 h5 O4 {
" o( z$ a+ f; j! w
to update-credibility-ijl B- {4 R* e* [- ^9 _2 ~
4 u0 q; x0 X6 _9 d: D9 b% z
;;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。/ n# }) u$ C- ~/ x7 G2 X$ N
let l 0/ l; G x$ D3 ]6 \" d
while[ l < people ]
7 ^4 c6 G3 Z/ v+ m;;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
1 T2 Z6 ]# ]/ h; M: B[* b8 ~9 g( c9 N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; J) G8 o0 s# q% Q" Xif (trade-record-one-j-l-len > 3)8 `+ l/ n( Q1 L
[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-one3 b T, h( a" @
let i 3
$ k# u1 |" d# Q5 [let sum-time 07 R. w' F2 m" P- `
while[i < trade-record-one-len]8 |6 T/ l' [' P6 m0 G' V
[( q; Z" Q- l+ }9 n7 Q0 }
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 w) l/ ^* T0 e# R/ Q9 f3 f! Jset i% N) |: b# b& Z0 ^7 E
( i + 1)
4 q- M( t' x3 A; V+ a6 {. x: n]# k# _# g. h' H. G" R+ o
let credibility-i-j-l 07 t6 b' v% R4 J$ q9 |; B" M
;;i评价(j对jl的评价): e0 g+ B/ W. ]1 H
let j 3
+ Z! v5 L- ~! N- c; Slet k 4# s) j' x" v# y% U7 r3 T
while[j < trade-record-one-len]
^3 W! H0 K7 E3 Y[4 l/ O q9 z8 u1 N$ G3 |9 j
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' F1 _& q4 I2 z; S0 R
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), S% ^( A/ K! u: Y4 L% Z' ^$ G8 s
set j
# }) e7 P' A( c+ `$ ^/ _; d1 h u( j + 1)
/ @" c/ w! ]8 S, O8 z0 k]
( L6 k% o7 {& K* W$ H0 f! |8 pset [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 )); i4 M7 \8 y; w6 W `. k0 E
( Y# n W) q, q* t3 V0 Z) c& A; S0 ^! e6 ^1 p
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& E# Z1 q0 N9 w z& \
;;及时更新i对l的评价质量的评价' }/ S# m5 t" D0 J: \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* A9 K3 o; S! f4 I( H- j
set l (l + 1)3 R$ l! a& P4 w2 y$ B
]
( k( R$ l4 m6 s- ^; U: dend
. j$ H- n) `. O4 s5 g8 @8 N m& S% z; Q, L0 r% |$ B. T
to update-credibility-list
' a3 p) |* w" T. g6 [5 _! ~9 Clet i 0
9 `; f3 D0 b8 Y' l2 wwhile[i < people]/ X* Z! W. d; J, A4 o6 u
[1 E1 p9 y3 l9 t( x G0 F5 j O
let j 0
& U# r% @8 r: N& Y8 t0 l& C8 s2 v0 I' hlet note 0( V# g* L5 R9 E& k0 D0 B5 N4 j
let k 0
- o; V: V/ U0 _/ l7 A1 c. `;;计作出过评价的邻居节点的数目+ w9 T, q1 i6 `( U2 f9 `4 |
while[j < people]$ t% L8 _& _9 S: o" o; b
[
, ]3 u5 u* x$ L! zif (item j( [credibility] of turtle (i + 1)) != -1)! r. J s. z6 Q5 e( S
;;判断是否给本turtle的评价质量做出过评价的节点9 |/ e1 T9 v$ N2 k: f0 U
[set note (note + item j ([credibility]of turtle (i + 1)))3 `' O% D3 {$ ]+ v
;;*(exp (-(people - 2)))/(people - 2))]
+ g* ], b8 O( Qset k (k + 1); L6 r+ }% ~: J0 C
]# c# H% _: F1 n
set j (j + 1)! P; `. h% Q) j
]9 T: y1 H5 P' B- A' Y1 y7 y
set note (note *(exp (- (1 / k)))/ k)
% ~7 m' I6 b& y6 R; ?2 P( u0 H% {set credibility-list (replace-item i credibility-list note)
0 p: X1 `: M4 U# i# Z: S Pset i (i + 1)+ U, v$ X1 \6 {5 x# O4 f( E! d
]- p7 K" I8 N) k; ~+ w8 C! u* @* B
end
% q6 g0 _) c3 {6 p8 ^1 z) ^; \8 }9 M2 D3 n$ S; A! M
to update-global-reputation-list
! w1 ]- q. f' g H' t( V# tlet j 0' w9 g, ?; |7 o0 Y1 P; T' V
while[j < people]: x2 R5 [; }9 _, `7 l) ]/ p
[
& l# u% G5 F$ E6 U! V& `let new 0& V2 v" N$ Q8 J' J3 e5 g* B
;;暂存新的一个全局声誉
& q" W8 v' x2 ?2 y& u6 H, Clet i 0
9 E& J U1 L6 `- o! Y' h0 elet sum-money 0
. a4 J* J- ]% I k1 i, C$ Vlet credibility-money 0 X6 X. ~$ Q* a- O0 K5 c' E. ?
while [i < people]
; h9 M b3 [# w" P8 e5 N[/ ?) N+ G5 X. j
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ X3 \& M0 B: d1 {' `" a/ D* Cset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); [' M9 \3 r. K7 @" B4 t
set i (i + 1)
. `) {: ^2 R5 s9 ]3 ?]
3 e" W5 T j; Elet k 00 {% M; T7 o! p% z4 d! G
let new1 0
" A$ _/ O7 Z! v3 i9 Z, Mwhile [k < people]
+ u; h8 {+ L8 e' y( R: }[
+ B, N' }/ K1 i/ o( ] R; Qset 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)% a' {8 x0 a8 M# X
set k (k + 1)
* h" i8 W$ I$ m% M! \) R' e& [9 i* y]7 M& R) ?% ~6 m8 L5 D. H0 ^
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
q. \+ D7 \- X4 T3 Dset global-reputation-list (replace-item j global-reputation-list new)
7 m* f# F6 B6 Hset j (j + 1)
( S% }, ^9 D, H% T6 Y' F( @]
: `/ P7 r* a/ z, r3 V7 `8 A4 eend1 |( ]; r# j) u& d S3 r
. o( o+ m( Q* A
0 s: `$ U6 l! R4 T, c
; A2 E1 J: _! X. L0 a
to get-color* D( F. y( O4 E4 I
/ v: A7 l: z& |5 s4 l. i
set color blue, @/ f. a3 X2 A6 J) F
end
2 E* a7 B# \0 H# s- _0 w( B2 `1 l; j
( g# Z- d( ~5 Y# e, Ato poll-class
# a5 S7 {. |$ E; ]! v" k ?- l, E" Mend8 ?5 C+ ~( q N( p
, j5 y M; B/ [* N9 W
to setup-plot1
5 w f# A2 v8 K) m. A0 {- b! g0 S/ S8 H) `) A
set-current-plot "Trends-of-Local-reputation"
; u$ d- J, O |4 k
, P5 W- i6 K* |5 wset-plot-x-range 0 xmax; R0 l `& R# W& B- M) u
; _9 H6 j) S+ L* d J% J! `
set-plot-y-range 0.0 ymax
$ y' M" a; H) J3 j6 K* Jend
# g$ O' B# H8 z& |7 Y* x- R: c4 u9 F+ e0 `; E+ Q
to setup-plot2% U7 i3 b1 R$ _) r
1 l5 G+ ?( r% R; c% P0 q9 B$ @set-current-plot "Trends-of-global-reputation"' ~' S, y6 q( B- c3 s$ J
2 {7 [: s8 p7 u; l2 _& a+ Oset-plot-x-range 0 xmax1 U! s6 e- n! p8 ^
) b9 y+ H1 ?; M6 [# A: @8 b6 Z
set-plot-y-range 0.0 ymax
6 c2 f1 `" S- D* c6 \/ @end! R8 e" T" m8 b! x
8 R0 D0 S- m- S; A5 t: `! G% m
to setup-plot3
/ O. ^2 R* Y6 U" w& K! e2 C. V
' n$ d! M/ j3 x% V u/ `1 l" Vset-current-plot "Trends-of-credibility"2 ~0 S" G& S4 Y: z
q- f6 P O! \" L6 R: u
set-plot-x-range 0 xmax
; Z. N# C: N1 s0 D! a
9 z9 S- o w: c+ c, t' h+ F- l9 Nset-plot-y-range 0.0 ymax
! H4 |: T9 `* o0 pend) x# E! B6 A! P7 ^! |9 X% J
' p( t) {6 p2 k7 f, w0 ?& zto do-plots
: x/ n- F# y: g( x( t0 i P% l7 uset-current-plot "Trends-of-Local-reputation"
6 d* G2 _4 [3 }: K5 Aset-current-plot-pen "Honest service"
9 c& X2 W( m3 gend# E, X5 B, H- W- Z& {+ ?$ s
! J9 @4 D F* d% f[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|