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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& o6 S( \6 Z, n9 t
globals[
+ ^" ~( f0 U8 u9 b5 D3 `7 cxmax9 f' d6 x% ?- T0 s* V7 {' N
ymax
3 l5 @% Z9 H' f( c# e) ~, j7 I7 M: Gglobal-reputation-list0 U o, A3 Y5 m$ W2 D
: p" P% x6 K5 D* ~- q. d;;每一个turtle的全局声誉都存在此LIST中
3 [' Y. _& `" V) T$ scredibility-list, x/ O2 E3 r* \0 p# }
;;每一个turtle的评价可信度8 n7 V& Y. J2 R* t
honest-service
+ Q6 W: G. J) |$ f. |unhonest-service
8 ~3 @1 j I, |% \! C Xoscillation
" {4 T g2 J; J, Hrand-dynamic0 d: I0 z& X; @) x k8 w8 {
]
# C6 M& }& U, D- Y
6 r# c3 ?! J+ R4 x2 `turtles-own[
1 S/ g: D8 m& |2 Itrade-record-all
; g. T& g" b5 R;;a list of lists,由trade-record-one组成$ G: f6 t' c+ u8 T/ e
trade-record-one( z) x8 w* u: C! m0 b$ W
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 g. }* {1 F+ \+ H m
3 r9 t* @8 w }) k. s;;[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 }+ h' r0 G5 k4 }; r B
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]
1 a+ n8 F$ W& J. c# p3 b. Bcredibility-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
5 E% u' i) |- K% ~/ xneighbor-total8 X5 {! G% T l# [: p: |7 h9 N
;;记录该turtle的邻居节点的数目
6 g; a- d1 F# [7 F8 P9 utrade-time
( T2 r4 c9 y7 T' Z# P8 m5 E* j2 ]' L;;当前发生交易的turtle的交易时间
2 q4 `2 a) Y' r6 bappraise-give8 M7 ~$ ?6 Z* O* i* }* I b
;;当前发生交易时给出的评价/ S, e& x$ l1 W. [# `' T) D' `
appraise-receive
, l5 y6 b* q2 W9 o' I;;当前发生交易时收到的评价% x# c' i. S: A3 o! u; b c
appraise-time- r6 o4 Y# T' a! ]. u
;;当前发生交易时的评价时间
6 L1 s( z$ E5 z3 ?- _' O0 Qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉+ ^8 |4 T) }! d5 T0 ^' _' |6 N
trade-times-total) W6 w# ^$ `7 K. `$ T
;;与当前turtle的交易总次数
, d: C, y; y0 x5 D+ D! _trade-money-total
6 B3 `) Y9 D( W( }; A/ T;;与当前turtle的交易总金额
% Q: `- f' N8 Z* ^- s" [5 R( Wlocal-reputation* l8 `+ G* y' W, B- |
global-reputation
* b" @& l# g* B3 Tcredibility
' \/ K5 s2 d9 k6 l* k9 t7 o;;评价可信度,每次交易后都需要更新1 v" Q0 d5 D9 s0 r+ B
credibility-all0 m j) }5 Z4 o b. X$ w _# X
;;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. `( X. n& b1 F' ^0 G
5 c6 G# t7 P# [: u;;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
8 |% u3 {, n3 u% }( v3 i7 Jcredibility-one+ z n& E+ _2 z' v
;;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, k$ D. A+ D& z; c+ ^
global-proportion
! Z% a+ Z, Y( w x' Xcustomer" `5 }( s. I5 h' p
customer-no" N6 F$ _' |4 o) ^6 k4 m. T+ ]. K
trust-ok, w# }( Z1 C w% t. L4 C) Z
trade-record-one-len;;trade-record-one的长度4 ~. `% `# \" P' K
]
. B0 w$ O) ~* t( w* T
$ M) ~2 k7 g8 W z2 o* S3 t# j;;setup procedure' V+ l; d8 g3 o+ ]9 e& l
7 A/ J0 ^' B7 t. _9 v$ G, Ito setup
* r" z5 F- Q* h5 M J- D7 S4 g$ M' f; m7 x$ {/ q
ca" c, D2 P: C6 l, O8 S( t+ v
B# q8 C5 f K- w; C; t: f2 H v
initialize-settings( X, t. [% |/ e; r# L n
8 I7 D3 @: E4 s& \; o3 P! I
crt people [setup-turtles]( v+ x# ^ t3 ?4 U- P0 m% ^
/ [; H6 W/ Z# `9 g7 E
reset-timer
' v, H( N" m V* ^- ~
! q+ |" M& M d, c! epoll-class0 `8 c7 Q* {: `/ t- R6 A2 ]8 \' p
0 b2 w0 }0 w; u' l* f
setup-plots
8 M; m3 w Y7 O9 R
7 G4 R) v' P% V3 hdo-plots
( D" N; h% `. q4 i& a4 a2 X8 ?end
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to initialize-settings
6 |' T4 M- I& @% Q9 u: w/ |" g( g) J* |& l5 c3 m) [
set global-reputation-list []6 h( b' V1 z$ q$ ^, [& `3 b6 k
' r0 o! R* Q1 o Y" W
set credibility-list n-values people [0.5]
' Z B9 X6 u3 \' H/ W1 r7 I+ |' y! g8 g7 f; y( Z9 i0 t" I+ q/ v
set honest-service 01 \- H1 u5 j2 d2 U
% W- o; p0 @ `) Q, M: _
set unhonest-service 0
. K) J r& x! n) i- Y' n8 h7 G4 a- T% A- W; z- L! _
set oscillation 0$ R4 P9 [5 s% Q, \
# n$ C0 d1 i. P O0 p$ e) t# w# o
set rand-dynamic 05 i; k+ }% X, @ u' J0 L& s# r( H* V% H5 ?
end
" N! F1 s) c; t0 T" ?) B/ V" W$ [4 z. x& o# c6 |3 ~+ Y0 W- X
to setup-turtles * p2 \6 t5 j: X
set shape "person"
' s9 E( g6 f4 W8 f# gsetxy random-xcor random-ycor
) v/ Q* T/ X+ T! I; U3 Vset trade-record-one []
A" D, B* O& n+ f' }+ }1 t2 M. U4 ]1 K; B0 X, J8 V& U+ Q
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 r2 ~( s% q; w4 |) w! E
5 K' p& d. @3 r$ _7 {% Yset trade-record-current []
4 z, z9 j' U3 l5 N, g7 C# C2 H7 Pset credibility-receive []
7 o) a& j) Z: w/ ^& C) h* Tset local-reputation 0.5/ i) O4 D2 w* v, w1 C* O8 f: J" ^
set neighbor-total 0# g5 \+ b- A, R1 U9 A z- O8 M
set trade-times-total 0# J$ H0 S, L) o
set trade-money-total 0
. W0 ` S4 D3 D7 \8 \' r$ w8 Uset customer nobody% z4 F9 u6 e% L* J/ d
set credibility-all n-values people [creat-credibility]
6 U& D3 [! h( X' Z. I. `set credibility n-values people [-1]
+ k" v0 w# y. {: c ]* Aget-color
- s2 k1 X, n; j$ M$ N9 u
$ y( m6 k6 G' Nend' P$ D9 I6 A; a e3 V
% o* y; V. X g
to-report creat-credibility( X$ C1 q2 \$ G' @( a2 n+ m; T+ U
report n-values people [0.5]
2 s9 e& D. n/ o- O, Vend" p# k, o Z- R; \8 F
1 b% @% U& N, D
to setup-plots8 s( e. N. _8 y6 |' z& ]: w
! j2 Z2 ?: W1 _" p8 P, Kset xmax 306 x' N& S8 z. L5 o$ p/ C
; K- x) a5 D0 `* mset ymax 1.0
( \6 `1 L1 x$ i( R& l7 V3 r* c4 ?* W$ m( M0 N) G' X9 `
clear-all-plots. B% {. z9 u$ b$ K c8 x
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setup-plot1" D. ^# m7 F. Y( t! r4 j' R
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setup-plot2" `3 W0 | W! d. O& M5 i6 T! ]
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setup-plot33 L' I2 ? |5 D7 @7 _' q
end
# m- Y2 k' O7 i; m
$ C5 L) K) f" p* |# ~; q- b;;run time procedures
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to go
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& H- c- _7 ]0 V& N2 qask turtles [do-business]
A: p6 l$ K" \& F: p/ Bend# I" i9 f ~. R
% x3 z$ }4 D/ A" K' ]
to do-business , @4 _6 j" z! S' B1 E9 H+ L
; {+ m. b% K6 F' {8 B. a2 w' J& b3 A
rt random 360
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fd 1! |0 k. r' A( X$ Y8 z6 p& l2 B) w
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ifelse(other turtles-here != nobody)[- ~& B, w! s) m7 ?1 H- V. h
. U9 F8 h2 Y& Yset customer one-of other turtles-here
/ T5 s. |: R. I. q0 K
( e8 N" i6 i2 T G3 Q+ |% |;; set [customer] of customer myself. ]2 H+ Y# s0 z, R- s
0 Q' P; q8 f2 t8 Tset [trade-record-one] of self item (([who] of customer) - 1)
! V# T' y( T7 i; t6 }9 z[trade-record-all]of self6 d# w. u( W! G1 d! g+ r6 P. T$ q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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" `* C# ]; ^8 f$ Sset [trade-record-one] of customer item (([who] of self) - 1) n( {; x2 X: l3 U5 P
[trade-record-all]of customer3 @3 i" w S& S. Q
& u! ? y$ j+ v9 Y; z
set [trade-record-one-len] of self length [trade-record-one] of self* {; N9 u1 O% }7 {4 c5 e) A
/ C% F) d7 | `0 Qset trade-record-current( list (timer) (random money-upper-limit))
2 Z; t. T% ~! `( a' L9 t. ^4 b
: e& |2 I3 S9 h% C4 A, R) @7 m/ T. [/ W8 |ask self [do-trust]* G! L* P- [: `" J& p6 j3 P
;;先求i对j的信任度
3 s' X% T3 y4 s' H% m9 U
9 K" e( h! p5 ?0 _4 t% ^; oif ([trust-ok] of self)
/ r- A6 f+ Q a( m+ \) i;;根据i对j的信任度来决定是否与j进行交易[
, P* e9 a- H* x6 o/ a$ k3 Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" x/ j/ ^6 e- q) x0 c
1 a9 S# S' e" L6 ]0 f& A) W) q7 z- `% J
[
" U; |2 k/ m" c. L6 f( `
" H" P; _( p w* r+ U0 ^do-trade6 B1 J' O% b& I$ w1 J2 F/ u& {
# v; m3 N' I d K# P$ ]update-credibility-ijl
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update-credibility-list
" w- Q/ {8 y/ {7 ]" n* X" t1 U Y& f1 C( `6 S# h. T7 C4 N
6 Q, g$ z- u- G8 h3 Bupdate-global-reputation-list
+ E1 M0 t) {5 ~" Q$ }( \1 |0 O! j1 V' R
poll-class7 z3 h: c" B: A) i8 ~
1 h! w: \# ~, E6 v
get-color% S! v2 \- I0 C+ `" @) T; i
* n+ s+ D/ O& G; K- d
]]8 U/ L) {: k+ S2 ~2 L+ b w% R: `
% Z8 `0 ]' s4 {9 ]5 E
;;如果所得的信任度满足条件,则进行交易4 H1 ?& g% W; [5 j
, U# n8 B1 v$ i! W6 S9 _
[5 l o- }! h! ~( H. E8 E
7 {. g$ Z& R/ J. ^% Irt random 3605 g: ^# G& Z* y: I6 N
; ?7 o" W! e& U+ T5 Xfd 1
+ f( R0 c6 ~/ v* v& ^3 f! }
# v7 n9 {$ X. h% B2 U]3 N0 f/ Z% ?$ W: x! b/ b) ?
! p1 H m- ?) I7 R
end
2 s K" e& N! n9 R( \2 \; F% V w5 s9 `( }7 {1 s) O/ s# C
to do-trust
' c) C1 w% B; cset trust-ok False4 c8 P7 y( |$ P- c1 h2 V- o
1 y, s: c1 z5 \% }' N+ k* R$ U
* `( C0 A+ q! W5 V' g: o- k* a' olet max-trade-times 06 m: ]0 h y4 z, h4 G j3 P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 g/ s- S2 Y0 ^' F) t
let max-trade-money 0
: l) u1 U' w! M9 w' d" U# Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 R8 E* | u7 ~, ]+ ~% 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))
0 l+ Q& a7 b9 A
- @: G1 b7 Q1 I2 _
' V, j- ]; t! g. Dget-global-proportion
1 w5 u- U: I8 Z' X9 ~4 Ulet trust-value
& U5 T9 A' q2 ?0 H# vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)" P# x, u6 x% h
if(trust-value > trade-trust-value)% c' @% v$ D5 Q" I% A9 Q# `
[set trust-ok true]+ e8 U7 x) B$ u3 n+ a
end5 U6 U$ x; h( \/ @; {: d
1 i, g5 n0 c' |! D$ x7 k$ N% uto get-global-proportion7 G3 u5 Q0 y+ ?3 v( d
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ S$ `. [( f) I1 W! ^* v% }, r: x* a
[set global-proportion 0]
: C- ?9 b1 ^6 b[let i 0
3 m* a6 w: ]3 `8 l3 W6 Z8 t3 Qlet sum-money 0
6 C# [; _; Z4 w8 Y G& r5 Vwhile[ i < people]/ d& k# O6 @& p: U8 j# ?; J- S W
[
4 [: L2 E; g0 i# N" I% hif( length (item i% z6 N1 Y' p+ R. y
[trade-record-all] of customer) > 3 )/ |: `1 }: E* p
[
! F0 N& X5 v( yset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 I! `, M( q$ j: X1 a' L$ l
]
/ L$ N" k: l* l- s- D3 _]
3 T; F6 ]- U/ r' r1 ~let j 0
; @/ @/ h3 h& `& W( Slet note 0
5 u* t: ~; P: D( a) Xwhile[ j < people]1 i& l/ s' q" R f! |
[
& C) a m% E1 yif( length (item i% w) e J+ x. U" I# g7 {2 A* e! l% J
[trade-record-all] of customer) > 3 ); u. h6 J" I; V8 o
[$ i3 r* \2 T1 e' Y l+ H
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" u* W* U1 k7 G4 v( E7 |" W+ Q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" z0 s- \# ], A1 b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! i8 _2 T {7 g]
/ _: B+ N/ D! a2 y% t]) A$ T @4 U' J# W8 w
set global-proportion note" g) G* t( E; j( N. h6 ~: ^" |
]
0 o A# E) Z! E7 u- `3 ^3 mend$ I" p( F9 c% W
* q8 C" J3 C) q: zto do-trade% Z; i- [" T/ w) ?* _2 y- K( e* B
;;这个过程实际上是给双方作出评价的过程
# d1 b/ `* L# A9 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 u! H% u8 R+ x' Y) _/ q6 v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 U2 U- ?& O& F: S, s
set trade-record-current lput(timer) trade-record-current
8 I3 n" I5 A. o2 L;;评价时间+ B u$ @5 c% N. p
ask myself [( j0 a9 ~) Z/ j
update-local-reputation
/ q' A+ o K' F% I, Q- Iset trade-record-current lput([local-reputation] of myself) trade-record-current! D; e2 H3 Q+ g7 z" [- C
]! d5 |$ q8 R) _7 X0 i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 O$ A3 _% z& U6 [- E8 t;;将此次交易的记录加入到trade-record-one中8 ~6 ~4 B3 Y4 n. O0 Y1 y& _: E
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 w8 D8 j; e3 g* ]: A2 e- _let note (item 2 trade-record-current )
3 y( h' y( x& n# A; L$ nset trade-record-current$ M4 g. k- }# {6 L I- M8 z- M- y6 p) y
(replace-item 2 trade-record-current (item 3 trade-record-current))! N; b, w3 n# x
set trade-record-current
# A4 q3 c/ W. e$ F2 h6 ~9 T. i(replace-item 3 trade-record-current note)
! y @. S! _8 M( e8 k( R: v. {+ P* z, @
& N% L$ i( P' j1 I: {ask customer [
5 i+ q( |7 ]& o1 b3 ~1 L eupdate-local-reputation" j/ ]; f2 M3 x4 @) L( L: K
set trade-record-current8 { R& k- e- b# I9 v
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 T9 V3 o' x( C8 G]7 R4 _9 G8 m" H/ d) q
' b4 r, x" `6 P! {( ~% d! f
. F( H" T) q: y ^% o% h5 X
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; }* p. }% {* L1 e;;将此次交易的记录加入到customer的trade-record-all中6 j1 \, M+ @2 g5 N* i# Z* l
end
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to update-local-reputation
- V& J+ D: a( x: ~2 y, z" _6 P6 pset [trade-record-one-len] of myself length [trade-record-one] of myself' \! H9 u5 |5 W. T- D6 G" B2 E
* g# R3 |" w% A+ m8 ]
9 l7 X/ Y) j7 N! E4 ~- ^
;;if [trade-record-one-len] of myself > 3
0 I0 v* ^- j. ? B6 t( V+ [update-neighbor-total
# f, s" c# x# ?3 };;更新邻居节点的数目,在此进行$ N( O0 r5 }; g d- [
let i 3
" \) S, Y6 }: C6 F& hlet sum-time 0) _; H* h, y( w# E
while[i < [trade-record-one-len] of myself]
( h- i" D- x" j8 D[$ _9 \( W6 U8 `% P# i7 ~' ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) M1 l& ~: t$ b) n7 l& r
set i
6 e/ {* T f2 e+ E7 ?5 G' l# c( i + 1)0 I. ~5 n. K; j
]
! g0 t6 k1 p5 ^3 d5 U6 Dlet j 3
$ Y% Z3 }) s0 [9 f$ P: |let sum-money 0
, X" Z' G, B6 ~$ I1 A- Qwhile[j < [trade-record-one-len] of myself]" e, o5 ?7 ]9 f
[/ c5 }. y0 t3 o9 O* q6 c+ p9 E9 V
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. ]# o# _4 T
set j
4 E, t& s$ |5 S) B5 T2 i+ {, U$ p( j + 1)+ T/ F1 |0 N; O- \8 ~6 e
]
# i7 f# ~+ x+ U2 ?- Y% {" slet k 33 H/ }2 w2 Z H- {( d
let power 0, x, W$ n4 P$ [1 D: h- `" J4 ^
let local 0
- q+ V- l3 W* m' Wwhile [k <[trade-record-one-len] of myself]
& T" {- m9 o/ a[
2 G5 _3 g5 ]4 z$ x" Yset 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) ! }$ S- A2 }1 G) p0 E1 n
set k (k + 1), {' D U/ [+ {/ O7 c
]6 N( o; }. P" ]( `
set [local-reputation] of myself (local)! D/ m' _7 \0 ^+ K, i O
end# a0 t; J) I, g) Q7 o
, h- s8 J+ f) }& b; c* \9 \
to update-neighbor-total
/ {: q' K3 [" T& [2 Y8 \" @0 j; [7 I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# K5 m: Y( h* y# |# x: m
- N3 o$ j; R) O0 H
5 B% Z; S8 b6 xend
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to update-credibility-ijl
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;;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。, G2 N4 p0 c9 r8 u6 u- V
let l 0 |7 G: H2 l+ j- M
while[ l < people ]
3 {) [ E7 g1 B0 o8 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8 X# [ l$ z5 S0 e$ \
[
* O) S& k. v+ Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ n0 ]/ N% M* dif (trade-record-one-j-l-len > 3)
9 S( t2 |6 N7 J' E& K[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
! u4 @5 p" T- ^8 g0 w' H1 q5 r% zlet i 3
; f, N4 A. ]% }) W) glet sum-time 0
2 K# g( n/ b( Fwhile[i < trade-record-one-len]3 U- P' ?0 ~4 e& L% j) `) F% \: s$ l
[
3 O( A; K6 C9 s$ v) sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) |$ B8 _1 ~; ^- W7 m! G
set i/ L* |$ H, k2 g% B' e3 I5 a
( i + 1)) t: \& N l1 A& E0 R# F
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let credibility-i-j-l 00 A9 B, s! `7 s/ s' a. _: F
;;i评价(j对jl的评价)' d# Z8 ^, A3 P- R
let j 3, O$ M3 v% e4 S* m
let k 4+ P5 m* M f7 h# W# ]) o; f
while[j < trade-record-one-len]
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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, o3 h- i( n/ 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)
: Y4 a2 {7 l Iset j
0 S! o+ ~! Y6 [ W2 P! w0 `8 D( j + 1)2 v" N4 d( O) M& Z/ i8 ]. [
]: \0 O6 T" ]( {) e3 j. }
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 ))7 X& B/ ]. _0 a. y
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" B" G6 V+ {+ |) X/ i
;;及时更新i对l的评价质量的评价
1 u- p0 ~& t' D: a3 ^0 Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# d! |- V7 q/ D* n2 \3 Vset l (l + 1)
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end
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3 c+ {: L; j3 w4 `to update-credibility-list. y" |, E. E- l Q" H' `
let i 0
3 n' }, X9 _! u7 m3 Nwhile[i < people]
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let j 0
& ?; [+ J. \* s2 i+ e; z$ Wlet note 07 i+ Y b5 ]( L
let k 0
0 \8 S3 F# k7 B, I;;计作出过评价的邻居节点的数目
( Y) Q3 h0 ^6 b4 f9 E1 t4 j) [while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
5 @1 c; n; M7 }/ M& I;;判断是否给本turtle的评价质量做出过评价的节点3 `4 [" T' l! E
[set note (note + item j ([credibility]of turtle (i + 1)))
9 {8 h( X0 T, u. _' {; z2 y;;*(exp (-(people - 2)))/(people - 2))]
3 O G2 c; E' _* y8 h3 _set k (k + 1)
2 ]& C$ m7 ^0 {# w& D0 \: \) c5 d]
9 [8 [: ]1 T" D1 ]* U s+ h+ iset j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)2 r+ v( }( e- ]
set credibility-list (replace-item i credibility-list note)( |, W1 p& V% v' T
set i (i + 1)( w+ S, R& o! V: _
]" E$ K+ |, k) p- [* i2 x% u
end
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% d; Y( |$ c# l8 i% ]to update-global-reputation-list! u3 w4 |- X/ f7 H$ l q
let j 0. X2 d' ~" o( c# ?3 M
while[j < people]5 Y# |. A# F" h5 C8 a$ Z9 X. B7 F0 N
[
1 K6 d3 ?& N8 q+ L7 Llet new 0
9 T( c3 B, x6 X# d;;暂存新的一个全局声誉5 d& t4 o( i! s x: v- h( M
let i 0 j8 Q1 u: v9 e
let sum-money 0
& |6 K- i: Y- h4 blet credibility-money 04 I. r" O8 i) r- A6 B
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 y- |2 d/ ]* v0 J* D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 J. A& x, W7 ^$ f. u0 m1 X5 E5 Kset i (i + 1)/ V. J) J/ Q7 m/ K* J9 V* J& Y
]
. V% P% a1 p( H {! olet k 08 h+ X" A5 }+ S/ i! n
let new1 00 A9 u8 q& k& y2 c8 |
while [k < people]
& \1 V6 I, w0 _. L& j7 j( E+ ][
+ _! Z2 w8 E1 v$ r8 }. B2 kset 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)
, M+ R9 X" {! \set k (k + 1)9 s% V" X" E0 \4 B( p
]
( {4 f- P8 t4 [) Aset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " R$ W1 F, q) X: @
set global-reputation-list (replace-item j global-reputation-list new)- j8 m) j+ Z* B1 J
set j (j + 1)
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, J/ W: h: Y. F" c. hend
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1 E5 p& l; p' K, Hto get-color% I; E1 k0 L# a, ^$ U9 B. y9 d8 v
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set color blue3 ]- F) k) V( X% I* A: }! G
end0 y) {) Y' L7 r* J5 N/ H
# [ X. l' U. Z. z! a; xto poll-class
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0 \6 O; R' H$ Tto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax; R2 H+ f; P8 H9 x+ O
+ s( |5 I) d% ?1 `% K3 B0 r: D( Oset-plot-y-range 0.0 ymax' i4 q1 ^& H! b/ ~( A
end
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t, \. g& h; p @$ Rto setup-plot2
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/ Y* E6 I7 Y4 R, C) C% h' \( Kset-current-plot "Trends-of-global-reputation"2 i s' b( y8 G4 p. {
$ r8 p+ Z, c+ Fset-plot-x-range 0 xmax2 c F( ]& F( ?7 U1 V
6 l+ b9 n% Y* A# d3 l& z# n- i. Sset-plot-y-range 0.0 ymax( o. ]- B \1 v Z$ e$ A, u
end
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to setup-plot3
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0 Y- o- n7 n5 [set-current-plot "Trends-of-credibility"' K h/ z; w. L- L! u/ w& \) |
& V+ A4 ]3 F+ Y% yset-plot-x-range 0 xmax
Q6 b9 A# ~2 K7 Y( w9 n, K7 l
set-plot-y-range 0.0 ymax/ b+ ]" c1 U( c% R* }9 }" f0 e5 n
end$ v, H& l! S1 x ~( Y
/ o# {* S# T* R- e. c9 dto do-plots
- O) E8 j6 t9 @" z/ aset-current-plot "Trends-of-Local-reputation"- \0 r5 E- F/ N, ~7 j- \/ N
set-current-plot-pen "Honest service"
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$ I( S. ^7 X3 ^: G8 `4 r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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