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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
. l0 A& W; E. J' n# G; I2 `" Q8 r/ Uglobals[
7 Q; }" I6 z, T- F9 L' h l; Yxmax
' E4 X) J$ G1 m, {" M5 lymax
/ T/ v0 `, N% ~/ S* ^! ^: U+ t+ Aglobal-reputation-list/ \0 I0 X9 a5 a' i6 V
9 V+ S3 n% d4 {2 F; n' N& d;;每一个turtle的全局声誉都存在此LIST中
" ?/ J5 k$ G4 V2 T3 gcredibility-list# _+ @( }, L5 \
;;每一个turtle的评价可信度
* H; s! I8 E4 h4 a; N. ghonest-service
0 @/ [( g; [8 @unhonest-service
8 s1 o2 h; B( x1 p3 Joscillation! O% e1 K' `) ^4 l2 A) D
rand-dynamic; V0 u8 X# l' t6 @& W% E1 T$ s
]
3 \; |+ D4 o- v! i% W& K# `4 R3 x
9 Y' b3 c6 g7 g. yturtles-own[# a; E; C* l5 {8 U; U
trade-record-all
. Q9 ?- x2 H5 Q! r1 K;;a list of lists,由trade-record-one组成
6 q8 f: Z$ q0 F1 H: J* Ptrade-record-one6 a, v& i9 e' w& H. K- U
;;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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: O3 M! x5 T: D5 }" b;;[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]]& s2 X8 ~2 A/ ^( F l# o9 @5 W% j
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 U* V$ {4 z& L) g5 X& tcredibility-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
# n! @. M) _3 Y3 yneighbor-total
2 C! Y5 K1 A4 R1 J1 J1 d( K;;记录该turtle的邻居节点的数目( A. s5 K1 W0 u
trade-time
4 d- ]" P4 _( ?, O& |;;当前发生交易的turtle的交易时间! P: }- _5 \% o/ {0 s! K
appraise-give
- ]. C7 K$ t$ @: `1 o% ?( u7 n;;当前发生交易时给出的评价
( y1 ~3 W8 Q6 A5 a) z2 kappraise-receive2 t0 b/ g& l' _9 h* A+ ?* Z( B
;;当前发生交易时收到的评价5 w) Y* G# H5 E' N5 P7 h9 Y: v
appraise-time
- z- O; h/ J* X* g8 l9 Y# f" L;;当前发生交易时的评价时间. ]- [1 y" b+ r: C1 A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, \" `3 J7 T& h
trade-times-total
3 p7 ?$ z/ M8 }( i4 X6 q3 ^;;与当前turtle的交易总次数
8 H/ {& _& V' k. ^3 Htrade-money-total/ [$ \- \0 `, n w
;;与当前turtle的交易总金额 `- h7 [$ ]8 _8 ]. ?3 d, S
local-reputation
' {& R2 ?$ _ o5 d0 l% Zglobal-reputation" M5 E4 g- \ D1 }4 m: _
credibility
; ~4 U7 q0 e; n# O) r9 M;;评价可信度,每次交易后都需要更新) E( j- k, N. O3 X( G
credibility-all
% v5 @2 I. e$ z" k+ 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7 c5 \/ |6 _" \2 ~: b
~2 O; ^3 v7 X. a0 l K) 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0.54 V0 A3 M! `$ O1 D* w' x
credibility-one% d2 d6 j! o. q3 j$ V/ 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
& u8 m2 [5 Q6 H# i! _5 iglobal-proportion v3 i: ], A7 W, Q8 i6 `
customer
4 P- ~! y) J$ Hcustomer-no
9 g, I5 j; P ^' u) ]$ Y/ c6 L7 ?$ Ntrust-ok
# g8 Y# A) ]+ P* P4 S wtrade-record-one-len;;trade-record-one的长度$ l8 D' Q7 z) z+ w
]
3 |" o* @! S5 A @( v* n8 ]4 \' R; x
;;setup procedure
# n5 |8 D( c4 d- g7 j
3 O! ?& ?7 x: t4 } Tto setup7 d& B; ~* B# Z1 i! t/ G$ H
& ?3 W' x7 }3 F' U0 _/ |0 |ca
+ |3 E9 B: O' ?9 P5 g$ g
8 {. m* o8 {8 ?$ C Ainitialize-settings) C/ C: O$ P e
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crt people [setup-turtles]7 T5 |# }6 ?8 N9 u5 T, L
. j- Z4 \8 x) }# A2 B" Z- R* t0 S
reset-timer
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poll-class" r& |3 P- ?4 Z% p
6 W7 s" ^9 v1 V' Y2 b
setup-plots, Z8 U# R& k; r! g- q
3 A3 }- o1 U6 b8 m" g: N' y
do-plots" D3 I9 U$ O4 I! e: G5 Z
end
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" ^/ @: Z( B5 H( h ~! I/ zto initialize-settings
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" x$ M% C" d) Dset global-reputation-list []
2 }$ L. l* s& a$ {: r- Y6 l0 [0 C* c" @. R1 M; E$ C2 [$ T& k
set credibility-list n-values people [0.5]
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: K! e2 z4 T3 t6 T9 G( E! uset honest-service 0
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set unhonest-service 0
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set oscillation 0) W0 l) O& P1 \6 I
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set rand-dynamic 0
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- O* p& J# r' X" I; i% ?) Pto setup-turtles
- h, N6 _& e4 Cset shape "person"
6 M1 U: G6 j: T; l& [8 asetxy random-xcor random-ycor
1 w( S1 q8 d; s2 E' @' X3 qset trade-record-one []- Z- B% k/ _5 n0 ~& k2 p) h4 a
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set trade-record-all n-values people [(list (? + 1) 0 0)] ( s' G) e' j) [& ~8 w0 u) G
2 ]8 c7 F1 y3 O2 \8 D" {
set trade-record-current []
5 b) b4 [1 O( p- O) s6 Oset credibility-receive []( ]( A7 F, T) w
set local-reputation 0.5
% w- u/ S* w1 y6 E! r3 P5 uset neighbor-total 0
; t4 J) ?6 X, f Z/ Hset trade-times-total 02 E4 E* ?1 C L% b( G/ S5 D
set trade-money-total 0/ g P6 V$ b8 |+ e" O0 |: J- E( x
set customer nobody$ t. K: ^ O! i ~0 n7 t& L
set credibility-all n-values people [creat-credibility]# W4 D* I; H* W; ^6 ^7 n) h
set credibility n-values people [-1]
; {1 j7 Q* s+ f3 n$ iget-color
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end
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to-report creat-credibility
- A5 @# d7 T; J" f' Ireport n-values people [0.5]+ J) n8 L6 I; T6 S
end. j$ D) T0 K. m/ y+ K t
2 U, B: t$ |, ito setup-plots( q: Z2 t% A+ U
. x! ~% y/ r& ~( M! a0 G3 Yset xmax 30
6 R+ N9 w- ^) I6 C" \9 p a$ Y( d+ Q0 X: n5 F
set ymax 1.0
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. f8 }" ^8 B5 J% l8 Y' L4 Bclear-all-plots( x, S- W. R' t5 |1 U, [6 ]
- _$ U4 g8 v1 Csetup-plot1
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7 Z/ [ W, x' ]9 r3 isetup-plot2
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setup-plot3
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) b! z8 X* v/ [; n" z2 b9 B;;run time procedures
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to go) F) C4 o% ~2 o3 n5 m
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ask turtles [do-business]# B% J. I2 C+ F J% y& b
end
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8 T9 N9 g" U, g. cto do-business
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# G, A2 o* j6 ^% art random 360+ `5 ?8 `+ ?5 Z; b- f* j
{8 {) Q$ z6 l8 E8 rfd 1! L" @( x3 V1 G( J W/ v3 k! H/ d
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ifelse(other turtles-here != nobody)[8 E3 B7 F7 m2 E
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set customer one-of other turtles-here) t8 s& b$ y( J
* y6 j) g5 k/ }1 p9 e2 ]0 ^;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
' u/ H; u) U" ]; d5 u[trade-record-all]of self
9 _8 K( X9 J7 A- \' s: h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% v- ~ a7 ?' A0 M
4 o: P- P6 Y# w5 tset [trade-record-one] of customer item (([who] of self) - 1)+ i' n, K) r6 t' k2 \
[trade-record-all]of customer
E$ Z: ?% q8 k' \ Y4 i; \9 j" u$ A5 Y+ k! Q( n) j
set [trade-record-one-len] of self length [trade-record-one] of self
$ [' I8 X; ^% @( U8 {: m" q$ w' Z- w2 F; }7 y) m7 {$ a. C$ ~3 Z6 a
set trade-record-current( list (timer) (random money-upper-limit))+ c% i0 C6 Q7 k$ |. ]
/ U# n. x5 A3 E9 i) a# x' U5 j
ask self [do-trust]
{: w3 _1 N( }( T/ d6 b5 @;;先求i对j的信任度
* m5 Z# N, w: c: ^, `; q
9 k/ S$ N6 n8 w; {. G" vif ([trust-ok] of self)+ D% D" K% B6 n# ~ _$ m
;;根据i对j的信任度来决定是否与j进行交易[) z' \/ Q8 m2 L1 i& _8 r- l# Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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1 h/ U' D9 M, ]2 K" ~% D2 J/ u[
0 m/ ]4 z# w" K5 B* K4 }3 q3 P; ~+ I$ g5 K! v$ j5 ^1 q5 M
do-trade5 }1 a% L- f9 L# R
$ d( E! k2 Y+ c- Aupdate-credibility-ijl
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update-credibility-list
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update-global-reputation-list
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poll-class
6 b' `" @- N/ N' @+ |( |2 O5 ~. ]2 v6 f3 P: a+ z% c( i
get-color! w, x1 A8 Z5 R+ G$ y/ F
: p. |# Z' S9 K]]' O* X! }5 u& ]& J3 \
- i, h) L+ ^ J1 p1 h- ^* }) c;;如果所得的信任度满足条件,则进行交易
- x$ Y D# B n8 {' b' x2 ]
1 z! f {" m. D# D1 w9 O2 a[4 a1 u4 f& g: _9 \
/ A* H% |7 m$ g: vrt random 3608 V3 i/ c5 `; q1 X5 W" s# O
3 n2 T% {: P, D' r
fd 1
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]
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; M; @ \9 k9 \# M: L3 Pend6 H8 x/ ^/ g; \% x3 N) l/ y# X
! O/ B3 f3 T" @. r" y! fto do-trust : U6 y! R& ~8 T
set trust-ok False3 s$ J Y; Z- v l( W8 [ a
/ y6 e9 |/ w" J' d. ]2 {& b% F k) k+ b$ N
let max-trade-times 0
3 J. C4 M6 k$ X- y5 D* x5 Tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. z/ _( E& u8 m' qlet max-trade-money 0
% I( U- D/ `( _0 o( D' q7 Uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: d: |9 O8 [/ e- K' @8 V1 b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); E$ Z3 s% m6 h" t# s, k$ I
& b0 a! H6 ~7 m( @ f2 H
3 G" U2 D* G5 H! kget-global-proportion
& z) m) M' I: k! W s+ t" h5 Ilet trust-value
3 ? y" n; P/ t+ ?2 ?: 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)9 k4 Q1 j1 R! g# G- Q$ n
if(trust-value > trade-trust-value)! B# p& J" ?- t0 t# Q) Z
[set trust-ok true]
. G; |- k- m2 I$ b- d4 C( e' Bend( [8 V, P9 P' s' C* R
: C% Z/ s) l1 l6 @7 q7 k/ Yto get-global-proportion* U( L, |# a1 _1 \
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 ~1 X; r/ C$ s0 E5 q
[set global-proportion 0]0 o+ w$ E' J% _4 O M f6 D
[let i 0
7 K% O* ~* Q8 m" h2 alet sum-money 0
5 z2 |/ q$ `% L- t' `3 M& y- P4 xwhile[ i < people]6 L) x4 L9 n: ^+ I5 b1 o/ t
[
0 f+ e% ]/ j; X5 z3 C0 ?if( length (item i
( ]3 @$ K! s; K1 o6 D3 H[trade-record-all] of customer) > 3 )1 z% }1 }3 i/ `5 s l; d6 D
[( n( P, |( s# ^8 i' Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* h% T9 |' t) x# V]
: @/ r! F1 y7 z- e- P6 Y: E% u]$ }( X& v1 R4 g: B1 l
let j 0
5 ?3 _ c& M @( dlet note 0
( r& X/ M. D9 qwhile[ j < people]! e3 w7 ]. w: e, b0 E. D
[$ R4 [9 t+ e6 n9 p: f
if( length (item i
e& ?: y; O3 Z Y+ V: T, C[trade-record-all] of customer) > 3 )
. ^ z9 [( q+ t( Q, A/ J, o3 u. b* F[" s. n. Q6 e" M Q, z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ H6 G( l' I9 I/ _8 f3 K; w
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 Z) u9 d+ i* k# O/ c5 u
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ @, j. V: ?9 ]4 V" A
]
$ q4 G/ C/ i6 ^$ C, y& }. w]; m, S. I0 [0 k
set global-proportion note" z3 C! }2 h9 K! k% p/ s) w, |
]
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to do-trade
5 Z, `+ R4 d# I4 b9 v1 H! X;;这个过程实际上是给双方作出评价的过程
: {; {7 g: M" k P5 t$ J5 { `& Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
?% T) n2 f% a P6 j: T" G4 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% y8 ^; z: i( Q7 w h+ Q( _" W, Mset trade-record-current lput(timer) trade-record-current
- U0 _5 ~3 B0 \/ J8 w;;评价时间
7 {& p- t! x. b7 hask myself [1 ^" f8 J# Y* A. C, Y
update-local-reputation& R& i, h/ ]: i; Z
set trade-record-current lput([local-reputation] of myself) trade-record-current
9 o ` x# N( }; c9 n, N( v]- s: b) |2 Z' o9 Q5 _' M. E1 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: v$ |1 I" \2 `- A
;;将此次交易的记录加入到trade-record-one中
1 H* t0 K2 e' N+ P, {3 Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), X4 H0 i/ i8 P6 D5 w3 s
let note (item 2 trade-record-current )' O, o: E& x o: H B% o
set trade-record-current
9 e) N' [2 J% J" q# V+ v(replace-item 2 trade-record-current (item 3 trade-record-current))
) p/ k) g6 u' v1 {& S' a8 bset trade-record-current
: b3 h: n/ \# |# ^' h(replace-item 3 trade-record-current note)
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0 }; \2 ?8 D E+ @ask customer [" r* p6 I, L5 [7 ]$ u" v
update-local-reputation
1 Q' f, S5 w6 Kset trade-record-current
# e7 Y8 A; F0 r( Z, C(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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9 Q( ]+ y S# x; E- o* n
- c# b. e& s3 {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; F' z7 V$ Z0 c% ^( K
4 |5 G/ s3 H1 B4 M
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 m+ Q; |1 ^2 @" k
;;将此次交易的记录加入到customer的trade-record-all中
7 A! A- l& O& q+ bend
+ m' d( A9 w/ z, ` {
6 ~) [( F3 s0 {/ q, W3 y6 {to update-local-reputation
: t a; O5 }- O. yset [trade-record-one-len] of myself length [trade-record-one] of myself
3 h: ?% y# V* m9 {1 S) j3 f+ `8 c1 D# R& H. s
r. P5 N" u0 f" z;;if [trade-record-one-len] of myself > 3 1 d- l# ^, A5 [/ B" ? l% n9 }
update-neighbor-total0 f7 j% c) J5 z" F# m9 Y1 m
;;更新邻居节点的数目,在此进行7 _; l' U& K7 {
let i 30 I0 j* e+ k8 I. L# I' U
let sum-time 0
: t7 K9 v7 \ O3 t7 ^while[i < [trade-record-one-len] of myself]
& ~+ Z/ T, ^. D2 y5 L* f[
6 r( H6 e L% @; V3 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' g v1 B$ s! sset i
4 [! p a1 E7 o2 S- c( i + 1)
& [, Y: q( |* S% d" f]
* L5 _. C3 y5 S! qlet j 3
, r* n% k# W* Y$ [) K" N- @: A; rlet sum-money 0
! [) [8 `, x1 }" g3 Nwhile[j < [trade-record-one-len] of myself]
3 Q- z; k( l$ H2 n4 ?& o4 D[
8 `' }7 q' A0 m0 `5 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) g5 Z3 Y1 L' E
set j
/ s2 D0 R. W. I. W% K% q/ n) d( j + 1)/ b4 J' N+ R, n6 m h8 Q
]9 K! z9 G- t) X) W) ~1 x
let k 3
6 j+ S& D: h. V( a1 M7 Llet power 0
! Y# f0 K, ~. V, }! l. T- u* Hlet local 0( h& Z' U4 _7 R8 ]: v e# e
while [k <[trade-record-one-len] of myself]4 |) w( L* d! K$ k1 c }; T
[
! ]+ {+ \2 E" C% \" l4 y" ~8 jset 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) ; ?) L. E2 [7 Q" J8 u, H% a
set k (k + 1)
0 ~, X' P5 r) S3 A]
; L7 S n* N) ^' k% M2 R {set [local-reputation] of myself (local)
# @( Q% d9 [& j+ Y }$ Cend
# G+ b3 X9 V& C) [" U |. ^3 u& p" z. |0 E7 Y J3 v/ N
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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! E7 S% W# L' ^3 E/ P- qend
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to update-credibility-ijl + R1 V O5 I* }, ~1 n1 K& F* l
+ F/ f& B* a& {" c, u9 Y7 t" e( c5 \; W3 Y
;;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。
) D! g% k. Y. n5 p4 rlet l 06 j) Z% I; P' h5 S4 r, K
while[ l < people ]
% o( S ~' N" 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
1 E' o( }" U; O B[
$ J F( J6 w$ X2 C3 k) ` t% |. Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 ?* ~7 I( o8 X3 j7 L. m
if (trade-record-one-j-l-len > 3)9 A y9 c; C8 w6 `& W
[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-one1 g9 ?/ x- x" M. m
let i 3
% ]% P {; D5 T! J9 u5 Nlet sum-time 0# a% X1 n6 l: N
while[i < trade-record-one-len], y+ r. ^4 \6 x5 b3 y8 ^
[
* u* n3 V+ S0 O/ `7 `' nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ N }: p s" I0 U! j. _, qset i% D/ d. e& |7 x' P' B* f
( i + 1)
' I. \8 u9 J& p$ r/ e; d- H; I- B]& ~$ v- _# C9 a
let credibility-i-j-l 0
& ]" z- Q$ g1 L5 V;;i评价(j对jl的评价)' M2 _0 c U( s, Q4 d5 _- g" {* K8 Q
let j 30 K( Y% ^0 a) N+ @) ~ v. b8 _0 r! v
let k 4+ @& g5 z4 c& P- x' \* D
while[j < trade-record-one-len]9 W+ [+ I+ O3 v8 p" U0 Z
[
5 P7 s ^9 w3 V, Q1 z. Iwhile [((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( }; C9 \$ j3 C) K! 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)6 x( B7 X1 P, h7 Q# Y+ @1 O
set j% J8 w, g1 O, N. i
( j + 1)
) q. i& [& T6 ]; d( P% ` y9 Y; Z]
& f! Y2 C5 S7 o0 B s9 @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 ))
8 ~' x5 t+ ]; }' v! u
: H# i% [4 \1 |; k, i
( c! D4 n' d7 elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ {3 _# Z) ^$ X4 M- q
;;及时更新i对l的评价质量的评价, v6 o0 l3 `) }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% e& p' c' G- M4 U
set l (l + 1)0 K" V0 D3 T" p
]
: y, V/ } O; N3 |/ g/ rend9 W- B! X/ Z3 s% K% e/ u
& S) S$ J. p6 W& J% `, zto update-credibility-list
/ q0 n/ K' A: V0 xlet i 0
( Z" a# J! H+ W9 X$ V$ V. rwhile[i < people]+ r' D) L" ^7 n' u
[5 D# h5 Y* Q0 V( l# I J1 W% C6 e
let j 0, Q. B4 L- b/ ]0 g7 t8 P5 Z- i
let note 0
: N* F, v4 _! s/ vlet k 0
$ K5 q$ `4 ^: a/ C0 u;;计作出过评价的邻居节点的数目5 T% ?0 v8 i4 f) c0 k& I8 {6 {2 w
while[j < people]
/ @1 L6 f( F$ b- J! k" @[
: S0 ^8 b2 x$ M; w) C" mif (item j( [credibility] of turtle (i + 1)) != -1)
0 {% F: Q2 C- ~ c;;判断是否给本turtle的评价质量做出过评价的节点" P# O* n; X0 F
[set note (note + item j ([credibility]of turtle (i + 1)))
V1 q t/ [0 b0 w& R) y;;*(exp (-(people - 2)))/(people - 2))]7 [4 c7 b2 \ t( s
set k (k + 1)
3 Z: U; @/ Y$ L& D2 e]7 t2 T% K% w" I7 L) m6 V
set j (j + 1)
( f$ L) X2 |% w8 |]9 F5 n- G. A( u
set note (note *(exp (- (1 / k)))/ k)
- {% w1 m6 p6 w# U3 Hset credibility-list (replace-item i credibility-list note)
; D+ l5 j5 n2 ^% U0 Fset i (i + 1)2 A; u9 @7 n( @ z) n+ C+ ~- u
]$ O' G" w1 q9 }9 Y
end' Z4 F6 x" T7 G/ l1 i* w
1 |0 ~3 R. H& g( R- Lto update-global-reputation-list( Y- k Z! N, ?# d
let j 0+ q% d7 ]3 Y g6 h8 a) \6 h
while[j < people]# _) [6 q; v- D" q# i& m* E. q, p
[; X- W- _4 v$ K5 f
let new 0
x# Y2 i" o/ D- k1 W- c;;暂存新的一个全局声誉
+ E$ X, [7 o$ }. X& Mlet i 00 i# w1 ~7 t& B
let sum-money 0
) y8 i$ T7 @7 e% F Z/ V* ilet credibility-money 0
+ H E0 y; X, J3 j# Z H1 F" [while [i < people]
) E1 t- Y+ L9 A) G$ d[7 k0 |7 { W& f4 N8 x, e5 C) g* G
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: L$ Z( K$ V9 {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; U$ Q- c6 j0 `6 sset i (i + 1)
: \- Q7 ~! |0 J* D" m3 s]; N/ r9 X( l6 A8 B
let k 0
. a; t* }* d$ P" d% blet new1 0
: s* R+ O% E3 { Y pwhile [k < people], ?" P/ m$ a2 l$ b; z6 R; p' L2 x
[ K% Y8 ]' k% a$ `$ i
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)7 O5 O! w# S4 q
set k (k + 1)4 S0 ]0 H* r- g3 H5 _4 ^, d
]# U8 y/ M' J' u# o" g3 q: \
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ L) i t( \0 }set global-reputation-list (replace-item j global-reputation-list new)0 r& s5 |5 p7 y% u3 `
set j (j + 1)% |, |: z1 K, r' I6 E
]
& i2 y( F8 ~, i- `end, i3 }. s6 G* ~1 E& ^
9 i7 f3 e- F7 b e" B) F5 @' x' i: V6 T- I' I6 A0 I2 F. T
Y9 p2 q S: @; V! @$ vto get-color
( T1 S5 Q& M% @6 P1 Z# F4 [ w9 C0 i
set color blue$ N: J8 I }( M2 j0 l
end. i% @- Z8 O+ ^, M1 h: ^ J
% S' C: O& n0 Q1 W& cto poll-class
+ q5 J/ n: V h3 X" P$ _. _end0 a) e. l- p) B& @" ^- G/ w
( K) ]7 r1 M+ i5 c4 {to setup-plot1! _$ D; q" ~# a6 |3 n0 k
3 ]7 a/ z* X& O c& U4 t/ gset-current-plot "Trends-of-Local-reputation"6 p6 ]5 A- S. Y! Z; f g" I9 n0 [, f
) B% L6 W4 A2 s; f
set-plot-x-range 0 xmax. b. `8 A& x* Z2 s/ Y) e9 {
7 L. |/ u) B' P+ Z7 qset-plot-y-range 0.0 ymax- {+ @6 k' B6 M" D+ ~
end
" I7 q/ o; t7 j: v* e
/ j4 G% X3 G: c" ?; X/ ^to setup-plot2
/ f+ {0 x/ w( Y" c4 u1 e$ P& D4 A6 ]9 b0 |/ ^) z7 J5 S+ ?- X
set-current-plot "Trends-of-global-reputation"/ C7 b9 T% g. q6 |
: d8 ^! c) e. T- J& f2 |) d
set-plot-x-range 0 xmax
, V2 _9 w! t6 z4 {; s- ~2 O; D3 L0 ?3 B' p+ f( z1 D% g B/ M5 u
set-plot-y-range 0.0 ymax
% g. D% q! N* U* cend
7 i7 \- g2 G% T+ z. ?2 q2 s5 \8 B j a" c* F' ^! G6 n F! _
to setup-plot30 v3 w. N* M0 A
% Q1 D' n: A, N/ I* ]2 y$ p
set-current-plot "Trends-of-credibility"
4 P3 `: x! m- x; C, q
8 y+ v E& M. [$ b* B0 g' B8 A- t+ oset-plot-x-range 0 xmax
: t1 d4 b G5 T1 `! ?
( v3 N1 O, r" nset-plot-y-range 0.0 ymax! Q3 j* h4 ?7 R' h) l) `- z
end
- G4 ^; M1 ?& u+ j2 W `! K
6 d; g9 b, N: J( mto do-plots# J5 g4 z5 g5 z/ D" u
set-current-plot "Trends-of-Local-reputation"
}7 u! W4 w- X) l8 {3 g+ g Y, Bset-current-plot-pen "Honest service"
( n6 q0 L9 [3 P( o/ z! Kend
' H) c/ R% \5 R/ [$ S6 W( e+ T! R& g( O1 x3 l6 T
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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