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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! F, H" Q& h( J
globals[0 c3 `( {" r# {8 N' ?
xmax
8 s4 B' J6 \( N1 t; pymax! E6 h! i4 v$ s9 b
global-reputation-list
$ u1 u+ d4 v4 Q: k8 n6 I( g$ d5 G9 g" c# X+ s$ a S
;;每一个turtle的全局声誉都存在此LIST中
& J' l+ U7 P3 F4 w' \3 \. ]6 `" kcredibility-list) ^) N; Q$ g7 i- p
;;每一个turtle的评价可信度' v* m/ f f1 ]
honest-service
( A, C9 Y4 b& h& o' d" zunhonest-service
7 e6 w# M+ O/ T: x; M9 b. ^: Ooscillation
0 G+ T5 b7 x5 t. ?0 X5 Urand-dynamic
; Y0 h0 i3 G% v7 t" D4 ~]- S* t8 z8 Q. [
6 |0 @" r/ u+ @. ~' G
turtles-own[
- `0 h6 X& ~: d0 o. r" {3 d# Ctrade-record-all
% z4 _- m2 {/ | S+ B* z;;a list of lists,由trade-record-one组成 c) B1 A, _! a9 m4 r' D( S6 P
trade-record-one4 }4 o* `' |# W9 e: a
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]
1 p% Q: t: T( G4 z9 Ytrade-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]0 t1 J& ]5 ~" X% ^" Q3 I& `) `) V) @7 g
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; x2 x3 x! s& |) {2 ~/ I7 w
neighbor-total, q2 F4 v% n6 K3 G
;;记录该turtle的邻居节点的数目
2 d# o; a8 r: `! [8 ^% h& V/ o6 Strade-time
7 v: o! b5 m' |; o4 b g;;当前发生交易的turtle的交易时间
5 N1 P8 E$ J1 G" H1 O$ C: _appraise-give
" i9 |8 ?# y) N- h;;当前发生交易时给出的评价( a. o' J- u: y# x7 {
appraise-receive
; a5 d- `' D3 E0 e" m% U;;当前发生交易时收到的评价' g' g P2 `7 x2 Z0 H+ g
appraise-time3 k8 {; B" R6 C3 U3 }
;;当前发生交易时的评价时间* g) u9 X- t- `7 [; p' x$ ?3 \$ B, A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' E: t. X( s0 N
trade-times-total5 D/ S. U: ~, D3 ?
;;与当前turtle的交易总次数/ i3 W1 i$ ~& k# E
trade-money-total6 D( p) W. m) @( H4 _5 z7 b$ B
;;与当前turtle的交易总金额
" @( i6 M% A+ e% S$ mlocal-reputation0 R6 y5 r( L3 x; x2 _2 W
global-reputation
) M/ U$ P8 i9 ]6 ~ `credibility
3 \" }0 C( E5 M& s; C;;评价可信度,每次交易后都需要更新
3 S* M* N0 N( lcredibility-all
& M5 l3 S" D2 O3 c6 l) F6 T;;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
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;;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- Y! m# Q: U( G2 W! Y3 b& u
credibility-one
" m% b) b2 f1 E5 o' A5 K @;;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3 F" X' N8 c. K8 ]9 }8 P
global-proportion) z0 K! d! K% f, e1 d
customer. ^7 H5 C) H5 t8 F8 I
customer-no& H2 f, i& B% ^9 j, M
trust-ok7 e; m9 M, f, Q. p
trade-record-one-len;;trade-record-one的长度
( {5 O0 ^ O1 ~. i+ s7 ?]
5 K5 W# i0 |. V/ G- k# c) E
4 u6 a% Z3 q/ t! [7 [& Y;;setup procedure& k r* Y5 p( C" B$ d# x5 S! t6 }8 s
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to setup( W ~& ^6 f( W$ ~' @
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ca
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! ~) l+ F! J8 J% [7 `3 C: {initialize-settings
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+ r' O3 R2 J7 \1 Bcrt people [setup-turtles]
1 W$ A o0 ?# [; K0 M8 ?3 {( e$ T; d+ W. Z( Q. k8 D. T
reset-timer% F1 P2 i! q- G/ N7 ^) r
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poll-class; b! s3 x9 L, D" o, R" z+ t
* r& @( E3 m2 q* h$ m+ H- t9 A
setup-plots1 X$ Y: u% v+ ^5 U
5 w0 d' }; x/ q' U; hdo-plots4 B0 r+ d2 o( s
end# J8 l+ `: Y7 R. u( b5 L
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to initialize-settings* `2 w- _, i+ u+ f9 Q* Z4 G6 {
) T/ m: h. ]' F8 m- m6 w+ uset global-reputation-list []& D$ B* H, G& r7 ?
+ r- M4 @! B( } U. M
set credibility-list n-values people [0.5]( _/ u9 }9 w6 N* B* I
`+ P$ j3 \, L' F$ c! O0 m9 dset honest-service 0
' M Q0 G B; w8 g4 T. r) z: E* e* a4 s8 v) \
set unhonest-service 0
/ D7 {+ P2 X) k1 d# a. l0 ?, t7 v. E8 S' o1 ~" q$ S
set oscillation 0
1 v2 U1 {* s* J2 \/ Y% e
+ t5 s8 u" `, }! b- D3 Cset rand-dynamic 0$ M" ]7 A, e$ O. O2 x2 l+ b1 r( V
end
4 }! ~/ m1 n. A) [% ~& e8 K% l6 Z$ E: ]( @+ h) b# _) J6 X
to setup-turtles
- q, K8 x7 r% M. h/ L0 hset shape "person"
$ C0 H: ^: I7 Jsetxy random-xcor random-ycor
# k% I) e& k0 N1 ~' ^9 mset trade-record-one []
8 Y3 r1 k; r- W$ e8 x# u# K! R
) i) `3 q6 w9 l+ G8 x( p7 _! [set trade-record-all n-values people [(list (? + 1) 0 0)] 6 ^/ O0 [* M' o
' j/ {1 z0 L8 g; W3 V1 Aset trade-record-current []
' x7 e# Q& B! Fset credibility-receive []
& C9 _, g! k) U2 yset local-reputation 0.5
0 K: r6 g' U2 g* b' qset neighbor-total 0
% j- A4 ~( m5 o4 `& J1 B6 Qset trade-times-total 0
* A- u' N" i0 w! j' eset trade-money-total 0
; k( \/ Y% o" [" aset customer nobody
* D4 o# ?9 Q, S$ o( L1 h0 p* z8 Y* bset credibility-all n-values people [creat-credibility]
/ B( d# K+ c3 z& Pset credibility n-values people [-1]4 }# w/ B$ `6 f w9 L0 }# j
get-color: p) O3 {! Z5 P9 Q' P
8 j n# H8 w, W+ r) X$ |) v
end
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to-report creat-credibility
8 y" j1 R+ `6 t: Jreport n-values people [0.5]; H2 ^+ c' @- K% f! a' U! C
end
( w% t, j4 E; C. L4 C. @
- S7 G9 c0 u! O( L% Cto setup-plots
: ]: K Z, e' S8 ?% _* I2 v U. u z+ @( r Q) z6 L
set xmax 30+ K! I3 |0 }* L! Q8 ~. K
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set ymax 1.0
! x [1 B- e% Q' O0 l4 R. w$ f/ I$ ] |; M; ?& `3 E
clear-all-plots" U P" c7 A; {0 d* w
$ K4 x/ j& X i0 F' V/ d/ usetup-plot1
- h" |% F2 Y* K, `0 p! u; L# v
; [/ Q6 f; P, p% L$ t) h2 Ssetup-plot2
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setup-plot3
5 _7 J; X- l& k3 O8 h4 _% e: `2 C, yend' C2 N7 Z3 r) a1 M8 i
. g$ o b4 ^0 g' V;;run time procedures# [0 \5 Z7 ^2 X- j- c5 i9 e" Z
; h3 _7 c8 n ~* E+ T1 y% cto go, ~: N! t5 X+ Q
0 ?7 i6 |0 J1 D9 z# U' C$ O* Qask turtles [do-business]
: d9 g6 E$ @. ~' U; d; Dend0 C1 B# f/ h" h# b( D6 `# \
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to do-business
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! a8 U; ~3 r6 f$ D# l( p: ~rt random 360
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fd 16 {+ ]/ m: g4 m! {% o
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ifelse(other turtles-here != nobody)[, F) p' J& N. H1 ~) J2 x+ @& ` H2 I
: @. t b3 r+ e3 A' y ?8 aset customer one-of other turtles-here* J5 \; F. ]2 L+ \9 I8 x5 r
/ `3 C5 c9 e [8 m;; set [customer] of customer myself
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9 l* f$ ?1 H0 b$ x5 {set [trade-record-one] of self item (([who] of customer) - 1)! `; p. z7 I) X N
[trade-record-all]of self
" M( ^2 O1 h, j9 `. i0 t" j;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
' j9 _1 I8 s$ i( q[trade-record-all]of customer
2 p \4 e# [. A* {) s1 t [9 k
% O5 |5 y8 U7 N& S) bset [trade-record-one-len] of self length [trade-record-one] of self
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. o+ [( t, j; Y1 N4 Hset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
; ^0 N/ l5 x; h/ E5 d X6 f;;先求i对j的信任度( O& O) u6 b8 x* {
% O7 q6 N; V c& n* u
if ([trust-ok] of self)0 Q4 ~; o6 I2 Q- P: }6 { W
;;根据i对j的信任度来决定是否与j进行交易[1 e5 H( J: W1 r. a
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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* \2 u0 Z: I4 N0 M. p& Rdo-trade$ S, c+ K* f1 O
# r3 ]& r& z# s- X( A; `update-credibility-ijl2 p: A/ z* Y8 h# L3 W/ ^5 s
* d* I X0 {6 R! M/ rupdate-credibility-list2 o' j+ Y; q2 O: b& x
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update-global-reputation-list
" P( d5 K o, Z) W% D0 e! O8 K4 K) _2 e, j. c1 s0 A4 v
poll-class! M$ I& y# e3 J* g: \
& ~5 R) l# Q$ R* C5 n2 _2 Z( ?3 O
get-color: ]% _ q% C3 g6 ~6 {- C
" v( H5 I6 n c+ c]]% N9 p1 V7 g2 m5 A
: j4 E1 V7 ?( a( Y
;;如果所得的信任度满足条件,则进行交易' {/ N! ]7 x9 A
3 k+ Z* U' i( ~& n[
* t& t0 C2 Q L ^) E
* A" Q: [4 D. [7 crt random 360
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\. E* l/ u7 Y' Ofd 1, u- v V' k+ a8 o3 d0 A5 S
0 [6 k# \' R2 v5 Z) g. N]
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end- p; G2 u: ]$ X L
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to do-trust
& F' K( n( F3 f8 p) F; b y' ~set trust-ok False
+ L1 C: ^/ t: _ Q3 m# E: p8 Q) S q: \8 z4 `# g4 ]- H
1 o0 s; b4 K) ^; Vlet max-trade-times 0) p9 U$ k8 D9 [, w% J% X9 W
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 G; |; [' B9 Z, O! ?
let max-trade-money 0
4 m: i* q t3 J& S0 O8 Bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- b. }2 Q7 f# v2 jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. p. t$ ~( R2 C! \' Z5 H+ ?2 P+ s9 g! [* r, {- y1 |/ l; Y
2 ~" I7 a% B, ?3 Mget-global-proportion, M: x/ S) B* x8 x$ N9 Z8 D
let trust-value
' C6 f( `3 H! i7 mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); ?2 r! z$ W) K3 q- L; J
if(trust-value > trade-trust-value)
$ H$ j5 s4 y2 J0 L3 r# T[set trust-ok true]# X2 x- V! p9 U3 g
end
/ Z( u; h" V% d7 q8 H! D6 }4 [- U- b3 a3 ~5 r
to get-global-proportion0 L0 L9 f6 Y# y( o8 ` d
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! x4 g; ~) [/ S
[set global-proportion 0]
1 T M/ P& A2 N' m7 g[let i 0
* d) l7 E& G1 ?7 n1 _. L: B& U' \# T# Blet sum-money 0
9 t& x( m( ?0 w) a; Q. C. g) q3 Rwhile[ i < people]
% \9 M' H. _9 R0 `' t[
- k! @7 M+ {( V9 r$ x% ?# xif( length (item i
# g, ^0 z- W, s3 J k+ q[trade-record-all] of customer) > 3 )( p ^/ g5 G$ n- V4 W
[0 p! _* I1 n. \8 y& Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# h+ a' Q) U" E- R+ U3 j]: @' w9 ^7 O0 ?1 R
]5 a& Y( V! r& X' k2 n- C4 s
let j 0
{) G/ F6 ]& ]; _let note 0 u2 \% o0 G/ u" ]: x& D
while[ j < people]
6 _$ o1 t$ c8 Q1 A+ w( g9 S; a. n[
5 ?8 s; n8 {$ ?* @/ x" Zif( length (item i: p' T7 m0 c* M
[trade-record-all] of customer) > 3 )
* i' r& u2 A+ q; n+ x! }[8 q2 M9 M# _$ [" @0 m2 p! y9 @
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- @1 T x2 c9 O; y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 V" j3 P' ?* E/ B; |% t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 L! X* k4 A1 d% _]9 ?$ x1 a; F3 K1 U- j# `% y
]7 z& r2 E8 B5 `
set global-proportion note5 D7 I7 [' p7 w( ^3 h. i, j0 F. a- ]1 H
]
; [( Q' x8 p# i' s* c ^end
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to do-trade- ^0 c" X: E. b! s1 Z* |5 U. |
;;这个过程实际上是给双方作出评价的过程
3 V) t$ X: E* J& ^6 @$ @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 @, ?/ U, H. d6 Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) M& J! w' h+ u# r# B
set trade-record-current lput(timer) trade-record-current
4 j# o6 {/ B; k3 m. [- Q) {;;评价时间" P% i; N, k9 E7 z
ask myself [, W% I1 I. c$ L& k/ M
update-local-reputation
! H8 N' `+ ?& }0 Y! dset trade-record-current lput([local-reputation] of myself) trade-record-current& t' X9 f3 R* G; W5 w1 Q2 M
], g, S" b; W/ k) I' y% U9 Y. h5 Y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& E- r3 M$ j) e$ H ]8 w( G) z. Z;;将此次交易的记录加入到trade-record-one中
7 z& I3 S6 e# v# n7 O6 `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
. N! V, P' r0 K1 z6 z1 y$ G2 Blet note (item 2 trade-record-current )6 c6 k) }6 Y& i% n$ X/ U
set trade-record-current, F0 v+ m% P5 Y# q& s/ t! k
(replace-item 2 trade-record-current (item 3 trade-record-current))
( D* s& ?+ Q7 [; f0 n3 p7 [4 D( Zset trade-record-current z6 ]4 Q+ p/ }( `+ p9 T, @
(replace-item 3 trade-record-current note)
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~) h; r3 U/ o
ask customer [
* Y0 P; v, P) h) C8 ~update-local-reputation
; l7 w! w- |9 m! ~4 I& pset trade-record-current" r1 I% ?+ ^2 Z6 g5 |- @0 V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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$ }* R; T" W0 M# y6 }% u+ U ^5 _' @& C
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, c. ?4 e, L- V: F
+ \" @; n6 z+ U. R2 `5 T: s6 P7 L
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: Y0 ?1 r5 k* X0 y) F;;将此次交易的记录加入到customer的trade-record-all中
) n i6 y8 b0 C3 V x# t* yend
# U' f7 u& X8 T- ?" h& m% a
1 T- i ]6 M5 X4 G# ^to update-local-reputation
4 l9 s" [* k" }set [trade-record-one-len] of myself length [trade-record-one] of myself7 o( ^: R; F5 S
5 E. n% m1 t# M% z6 k7 C! ?9 ~% B
/ p; p& `6 E& R; x- g;;if [trade-record-one-len] of myself > 3 9 B3 a7 p7 ^5 J9 h* t- @
update-neighbor-total
: v! t4 B) V( F0 N;;更新邻居节点的数目,在此进行
( d1 |1 e# u6 j8 A2 P( _let i 3% R2 s3 H/ l2 I0 s
let sum-time 0& b1 O1 q/ G' }' B2 i0 i
while[i < [trade-record-one-len] of myself]
( t J1 Q/ K* e$ v$ P[8 Y, N) J$ G( J; Y* K
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' G/ U/ K- x# p* P0 q0 ~set i
, @/ m2 p1 `; F/ b( i + 1)# f* I4 u4 A( F1 D& ]0 T2 n
]
3 m( @, u* f1 ulet j 3: ]9 S) L4 C# m, i* e9 }$ I
let sum-money 0
3 w) x9 E, t) h7 B2 xwhile[j < [trade-record-one-len] of myself]. G8 t7 ~. G: I d4 O
[
, Q6 D3 T& J A5 N/ U2 \9 Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 Y! q+ G, X, L( X/ @
set j
+ ~6 D! A3 m/ E0 V. Z0 h( j + 1)9 M9 |/ L2 W3 {! M. u
] V$ U4 [" A' Z) L8 @7 d5 A
let k 3
; N+ @) o: x$ y# h: g& B8 Rlet power 0- e; Y' C) V1 K
let local 0$ m, b$ S" h) n# q
while [k <[trade-record-one-len] of myself]
# V- n/ P0 u* N) O1 _/ x7 w3 r[2 |; a0 t2 e# e2 ^' E5 @8 ]5 i
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)
& |: d' Z7 w9 L, |; | Uset k (k + 1)$ q7 E: Y" n! w/ h4 F1 |
]
: E: T2 ] Y. [5 ^; [( oset [local-reputation] of myself (local)% I4 Q* U3 L7 {$ D
end7 E! F# A( r6 N& `
T9 a; K i% Y- P- E+ r9 Fto update-neighbor-total. v6 U- z) v4 b9 z9 m
; g. q' z9 q) M! z6 z( @& n' F7 Y8 jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ b+ A* Z+ B# J+ l5 t K6 s$ y8 \! q$ ]% d4 T# s
end
2 c( t0 O# V$ W% v3 ?7 r
% H& Y/ d3 @! j' m: Hto update-credibility-ijl
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0 z9 x& q3 Q1 P3 w7 i6 J;;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。( s3 U8 ~+ T! Y2 g
let l 0
& V0 s0 W- E8 z2 cwhile[ l < people ]) r! Z) l4 Z N
;;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
2 t4 @- I# |1 C8 c[$ `; E7 t* F( @* U `
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) T0 d A4 S, sif (trade-record-one-j-l-len > 3)
! I* s, U) M% |3 G2 {' f[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
# x% }1 }# n, E$ w! R% O1 f D9 alet i 3" |- u+ p0 e; Q& L
let sum-time 0
( U' Q. X; F* u: _0 p2 R' N( }while[i < trade-record-one-len]2 E( ?7 o$ K3 n6 z
[
2 n3 |% i7 ^% d# H) t/ Q1 fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) k" r8 T7 y& o' ^ X
set i
& A- e+ v1 E8 p7 M( i + 1) P' I; m5 c: s4 G9 w# b0 [3 a! y. q7 H F
] c' A! p7 C& R4 X1 M% K- U$ S
let credibility-i-j-l 0$ m% x8 Z8 B5 T2 s% S. R
;;i评价(j对jl的评价)
G& U7 @6 t6 u% |8 f- llet j 3# D. E! y' {! s; ^, Z
let k 46 ^- a% s2 L z* m/ H: c
while[j < trade-record-one-len]: T; B) c0 h7 i/ s5 W) |) L% {9 d
[& g) Q; t/ K# m- |
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0 D4 B% q; h4 {
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)
: Z; x! p4 F/ f% fset j
! i8 N# s7 W) {9 P( j + 1)
) r, y: e; `# u4 p5 l]
- m+ x: y$ _$ F2 K- R( K/ k) `" vset [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 ))# V6 x. s' f4 v9 G
0 r* ^. A4 a1 ^" s& Q5 z8 _! M! ]
' [5 M7 F/ }4 \. S+ M5 t4 ]. ~let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) M/ u4 u7 B2 t- F! P% e* S
;;及时更新i对l的评价质量的评价
" L" V2 c8 q! n( d0 Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# H2 a$ j5 n1 E D. Wset l (l + 1)( M( w8 q$ A; \. S
]
0 Y; Q* W$ D4 Oend" m4 i* i8 _5 u/ U4 ~
x, u" Y0 O# F$ l( v+ ?to update-credibility-list
* _, n: B1 V" f! E& x8 elet i 0
# G" Y4 l6 `9 }1 Z$ Ywhile[i < people]. ~, ~8 y9 B# K- a, [: X
[
9 N+ I7 k# ]; C1 ]( `. C# Hlet j 0' q6 f5 S$ }3 N" J
let note 0
; f4 K8 L% C8 nlet k 0
# d5 B+ J" t5 @;;计作出过评价的邻居节点的数目
6 t/ X* Q- o! e2 Kwhile[j < people]! m# \! j3 t/ K% i# m; U4 x
[
$ k4 p9 ~' o, ^' v7 U/ U, gif (item j( [credibility] of turtle (i + 1)) != -1): }3 O' q* L/ Z q5 P6 q
;;判断是否给本turtle的评价质量做出过评价的节点6 p/ R: b, k0 p0 Y% p$ ^. ?0 |3 @
[set note (note + item j ([credibility]of turtle (i + 1)))# O8 m y5 a' ]( i/ b: S
;;*(exp (-(people - 2)))/(people - 2))]% c# ?0 m: I0 n0 N# |, P
set k (k + 1)
; X+ Z3 \; t8 u]
" n/ l- ?0 C5 Iset j (j + 1)
& K$ F# q- J: ~5 C8 _( }0 `+ O]1 m. k' W" \% z2 Y9 v {! l
set note (note *(exp (- (1 / k)))/ k): @" Q3 f. g# j% z
set credibility-list (replace-item i credibility-list note): R/ l6 c" d6 V+ T
set i (i + 1)
; b1 T+ r) D) F! F# F* t& S) z$ Q]
4 z, A1 T) W5 aend! q; F7 _' \1 k
- i' V5 t u4 l1 J' ~+ P
to update-global-reputation-list$ i2 S1 h, K( R, V2 F$ z0 u
let j 0
8 e7 K- ~4 O4 }( ]! j" Twhile[j < people]( {( |9 J* X/ F2 g- d9 q
[' W! W9 X4 u+ j5 _# C: s
let new 0
* [, [1 W) _2 s, E;;暂存新的一个全局声誉$ j8 r3 _2 V, U) u( M
let i 0
: @& P, p$ o* d! a5 b3 }2 plet sum-money 0* G2 c# H" F- J
let credibility-money 0! J$ {! \% O7 R9 I9 O
while [i < people]
; S9 }- i5 O; f( I* m$ L) J" J[& e! d* _' G) S2 G( g2 { G( Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( T' `, e4 w/ Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" L0 A: N4 A) C: }1 i$ t
set i (i + 1)
! b% I5 a. m% {9 t]8 L- c+ s4 l$ r9 u/ L B1 U
let k 0
6 y3 {; q. X9 e. }) r& M& wlet new1 0
" u/ R' w0 ]9 k2 J' ]6 ^: awhile [k < people]% |- [. x- v: f
[
# x9 ?* H/ i: V0 d" c6 |- _( \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)
. g- Y: n! k# Sset k (k + 1)1 ]7 f p; \2 q
]1 M' i* I! [5 ?7 Y9 M" e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 q2 I7 m* j4 S
set global-reputation-list (replace-item j global-reputation-list new)
3 }: _' X6 }4 Q$ J2 {' [set j (j + 1)) z& ~, f$ n9 a6 W% @$ U
]" r. ]6 ?( Q1 p) a7 [6 N$ m1 o1 p3 ^
end3 t$ N7 ~( F4 }# W) L# p
) f/ h. ]) W$ a2 B$ X- K
- v+ Q1 A2 J4 @* V+ ^; Q! X: ~( v1 Q8 Z' G
to get-color1 Z2 C, n* O/ k! M5 j. W& }
7 z8 k! }+ D5 M6 Y& Uset color blue
6 [9 a- o3 y' d3 }( }" Jend
; \4 |& B3 Y* z" w6 c
' D7 b1 A- {) p) l. d) I; oto poll-class4 U3 T! _3 a1 w# z9 ]0 p% P, [' ?
end
; t2 x# f0 ~$ l p! T* ^+ ]% w9 B+ w' m
to setup-plot1: S- F) M. g# ?
; d* Z7 L- |9 @' m. yset-current-plot "Trends-of-Local-reputation"/ k {8 N& `4 ~9 U1 w2 D2 ?
' u- _/ S! H# U' a o5 ~ ^# \4 _# h: sset-plot-x-range 0 xmax. r. Z2 f( ~1 {0 p+ _
- Z0 v3 Y# e, x$ u% pset-plot-y-range 0.0 ymax
* w% L8 y" g' m4 _, b$ b# b" nend
% [( i$ f/ `' t4 B/ x
8 p0 [0 B* y$ v& u8 p6 {: O" Sto setup-plot2) j2 L+ S ~; c' s" n# Q+ _
% \$ |4 u- I3 A, t) \- D
set-current-plot "Trends-of-global-reputation"
( L) q3 O6 [! C G/ d! G K
% K- a' H- \1 T. `set-plot-x-range 0 xmax5 U8 O$ V" o7 i' `
& W. ^6 d" B9 v' V7 Aset-plot-y-range 0.0 ymax
. L& s" g$ x3 J: b4 Aend$ h! [, U; P0 Y
L7 E$ v' C( M$ b/ n& V/ t
to setup-plot3/ ?* d" M+ i4 o
4 \4 b% y+ I; L! H; z
set-current-plot "Trends-of-credibility"' p+ w5 f/ E, k V3 z6 x3 r' v. F! \
% K; H; b' W# b/ f+ i) J: Rset-plot-x-range 0 xmax( D* a9 ^% a4 n, H
( U2 D7 M% j6 ]
set-plot-y-range 0.0 ymax, e" X8 v& u7 ~: W# K9 \
end
( [, |( V1 q4 |( k; E( |' K- z. K' t/ {
to do-plots
2 I( Q: S% ^5 a0 v; kset-current-plot "Trends-of-Local-reputation"* v( d3 x. }( j
set-current-plot-pen "Honest service"
# G2 p% k" t- G7 H/ Uend
) H* o* h! e7 d& x% j# {( w: X6 v
( I- M# Y0 L# d& V; H6 W( S[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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