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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0 c5 A* O7 V+ e( r) p8 l8 k
globals[
; ]* q+ ^+ p5 T8 h& Q- N8 Zxmax* ~1 t4 p! W# q. E( |, T
ymax
- h) r- l; y) H5 B* wglobal-reputation-list
% j3 @; ?% R1 Z! k" K- S* k
4 f; q1 ^% Y7 K- i% d8 f;;每一个turtle的全局声誉都存在此LIST中& s# u+ K9 n- o/ \4 j
credibility-list9 e+ ?+ [+ `6 [# j' l
;;每一个turtle的评价可信度( ]5 {$ R# [+ P% v$ W8 `
honest-service9 K' a, }3 I8 X
unhonest-service9 {- i" j4 N+ [" a9 z/ l
oscillation; m1 h2 r m h2 u6 D
rand-dynamic
! m/ K* {: V* Y$ y" v) ^/ c]
7 j: T9 c- _, k& y* r/ n
$ |1 m5 [; ?- H+ f/ u- Yturtles-own[
6 p( J/ G | w+ A! e4 R, Strade-record-all2 ?" |2 s: M3 {0 r7 c
;;a list of lists,由trade-record-one组成
0 P* M( X N& |* U v, mtrade-record-one6 N M; _4 a' G
;;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 G8 _# {9 n" r2 a$ k2 [$ [' I k0 H8 ]* j: Z; P
;;[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 U" k1 s; k# qtrade-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]" q) J. h+ _/ d' z2 n: v4 @- 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
% a+ A3 [5 g0 ]9 N) ~. lneighbor-total% z3 Y8 e$ B3 q4 g( U* w
;;记录该turtle的邻居节点的数目9 e ]; \/ V) a
trade-time
/ B" y" j% i* f/ l2 v;;当前发生交易的turtle的交易时间* h- o! a6 C# \( ~& x
appraise-give
f9 b1 }, ?" f2 p;;当前发生交易时给出的评价; Y. _' w6 l1 Z1 W: X
appraise-receive
- v- }0 [: Z0 v9 u# A% N, Z: W1 J" {$ W;;当前发生交易时收到的评价 y7 f6 a: |- g4 w% J
appraise-time5 g( `- J6 `' ]- `: r* J' P
;;当前发生交易时的评价时间' R: X! ?% P8 o9 T
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 k$ u+ T; h0 v$ i( n& N9 P1 {/ \trade-times-total2 C( f) L' L# l- l6 V2 }) B
;;与当前turtle的交易总次数) f9 O2 M0 o( F: k! i9 e
trade-money-total
" o3 z* E1 T) B( B& g( @: ~;;与当前turtle的交易总金额6 V# }2 I/ U j, x/ S- ?3 a
local-reputation
4 K: P6 x% f9 E- ?% Yglobal-reputation& V2 S2 x( Q& W" O. H
credibility
% O3 p& M5 E6 |/ e1 G" s;;评价可信度,每次交易后都需要更新0 t2 w2 K) N: \' C. w
credibility-all$ i* D- b- f7 @& g1 R2 U7 d2 L
;;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
* w9 P+ g0 C2 fcredibility-one4 n. K% N3 E9 E
;;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, U0 ]( fglobal-proportion
6 P$ w% C9 F/ M1 icustomer- y5 G6 T# Q/ d6 \1 V
customer-no- ^$ k" n$ u% W; d' ~* I
trust-ok7 o$ f* s% e9 i; j/ p0 g2 \5 H
trade-record-one-len;;trade-record-one的长度8 e8 ~9 ^/ y& l2 Y
]* H, W/ q B7 p5 S! E K
( F5 g* l( H0 r B4 G
;;setup procedure
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5 }! Y' u. u0 z" Rto setup( e7 v6 s/ U' U! r' q
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( c9 W& A8 \" b2 cinitialize-settings
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, r8 @' K: | _' }4 C( C& I* [1 bcrt people [setup-turtles]
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$ e5 ?9 v, k: d5 ^9 Vreset-timer
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poll-class
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setup-plots
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8 U, P/ _$ Q. e# d# @do-plots7 P6 B2 o f6 u |# b
end
% v |# d2 u9 x3 X* D3 D
. A5 K; I# J' L4 j; hto initialize-settings
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. q/ ^! d3 }( }/ Tset global-reputation-list []9 ^3 y# F, z$ p) B- W
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set credibility-list n-values people [0.5] F* O' ~6 H6 T' e4 r2 K
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set honest-service 07 \- X" C8 V5 ^( F* ?- d6 E# f
4 m7 J8 \8 I3 M0 n: [set unhonest-service 0
, V% B% R; P( I$ B2 x
) X% D/ t. H; d8 k/ Qset oscillation 0/ M+ ], M7 _/ H: r" W' L) L* V
; h! s; c* ^- Q/ ~6 \0 t
set rand-dynamic 0
* z% ?! D3 H- v1 W/ L8 j5 X- |' oend
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to setup-turtles
7 A0 B7 M8 A6 p8 d6 _ E( Aset shape "person"
; Z k4 G% b7 \" U1 K% _4 \setxy random-xcor random-ycor
" I' H3 D4 w5 y5 eset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
5 [& d% \2 {5 M }& }
$ V; _2 k+ {& T0 B1 m/ lset trade-record-current []
9 d: y) W, [8 K1 w i" Pset credibility-receive []2 t% U A. g6 L% `5 ]$ T
set local-reputation 0.5
" r+ x# Q; n2 p$ F, o+ G+ Xset neighbor-total 07 @/ N# w; X, B7 i
set trade-times-total 03 G) _' S0 ^+ v* h
set trade-money-total 0
& j7 h# V1 I7 p. C( r2 Q+ Eset customer nobody
% R. v3 k7 c% F0 ?6 Y. l" p7 ~set credibility-all n-values people [creat-credibility]
5 S5 ~% j# V2 p9 pset credibility n-values people [-1]/ l9 N0 s' W# b' v# z
get-color5 [' w& I6 }2 }* }) W7 Z9 W, N" ~% p
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end% j! Q- N# m: o$ m; Z5 i, V Z
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to-report creat-credibility% U: ^+ F2 z* a: w3 [) k
report n-values people [0.5]. `7 V! R# ^1 m# N9 |- A
end
+ O6 {$ f2 S/ E" @' Q. ~6 { I s' n" y; V0 ^" R+ b- |! o" Y
to setup-plots
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set xmax 30
/ G" A G% G) @- j7 T; v
7 u) I5 M$ S" S( K, tset ymax 1.0 k6 j; W) p' T& O" f4 p& Y
4 G4 d1 }$ H- L. Z7 aclear-all-plots
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' `9 x+ G0 O$ [, i" Esetup-plot14 k. G) o+ }! F3 T5 K3 S v
1 {; v6 X: F" e9 ^5 S( f- ^8 vsetup-plot2# K) j+ X! L Y0 R$ v3 I- }
4 l% a' G7 {% r5 hsetup-plot3 M# e5 w) Q2 c
end
" G' B0 Q1 F+ F4 g" h+ J2 y& @* t3 z# R/ O" d9 d+ p% b
;;run time procedures
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. t5 [$ H& g2 m. C! n/ V- {to go
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6 }3 o. C0 y8 u9 i# v% uask turtles [do-business]
: @% G/ ?) u0 a; Pend
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to do-business 2 u8 G T% a( T3 J( Z0 i
8 B( t& _5 L1 a0 N4 O' r
! v3 S, b& W' V brt random 360
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! \: C+ x) j v0 ~" Qfd 18 m2 ^" o# I' U; _' M9 H1 q
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ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself( w( }! z: n# b6 u2 k$ O( \
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set [trade-record-one] of self item (([who] of customer) - 1)
; l, \, A8 S+ D9 T[trade-record-all]of self
5 j U* B- q& o/ q2 V% X! I;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: b* g4 U/ P5 m# e
; M8 ^; w" s c9 u0 |0 E' \
set [trade-record-one] of customer item (([who] of self) - 1)/ @- M/ B2 c4 G6 p& v
[trade-record-all]of customer6 [; M0 \& G4 ]) X5 }9 `" d, T
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set [trade-record-one-len] of self length [trade-record-one] of self9 p4 v$ j- [( y. l. M5 h
$ l! a* o- B. A9 B! O9 Sset trade-record-current( list (timer) (random money-upper-limit))
$ |; J" f) D- B$ o C( P
9 b% D) w% f% vask self [do-trust]
. ~" e% T, _5 ];;先求i对j的信任度
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if ([trust-ok] of self)5 O- L1 C( F/ {, ^8 O6 |: E
;;根据i对j的信任度来决定是否与j进行交易[* B" k) e/ ~& c; ~+ W
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ [7 m& w& h9 f+ S
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[" W0 W- x* n) K _+ o+ |/ P
8 }" a+ E7 E. f# A( r/ k
do-trade
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update-credibility-ijl0 |6 ?' p1 H0 Y
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update-credibility-list! v' b" x" v4 x5 o/ M
R5 T1 P- G& z5 Z) ~8 _5 v
2 i; a4 ^9 Q7 M8 ]update-global-reputation-list$ }! i1 u6 D F0 h, |
* d, ^# N* U& X# c) o5 s6 wpoll-class
& Z4 Z+ o% K [6 F2 M9 f$ k) P3 x* K) X' X3 H
get-color
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]]* y$ j, ^9 U. k- w
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;;如果所得的信任度满足条件,则进行交易
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( ~. C1 T/ H: R[
5 K! \# z* N- P% h
4 E5 P7 e" x# }0 K4 @3 m3 {( n+ R9 [rt random 360
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& X4 S% m# a9 ?& d" Gfd 1
! m7 y5 p9 c8 m2 c% t
: V) ?; e4 |% Q9 r]
v2 T* Z- k M$ W" N8 a! ^* U7 W+ M/ U/ j3 |
end
) t6 m, @ s) X0 O# A1 T
5 w9 n+ O2 z0 c2 d2 n7 Z8 ato do-trust
4 A9 {& A2 C/ M' N0 ~. h" Sset trust-ok False
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+ G4 R$ D( w8 C3 v: X4 U
- F: n- y2 b$ q, rlet max-trade-times 0/ J1 u2 l2 e1 x: } K; v6 \) a
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& k8 Y9 C6 d. W- r: x
let max-trade-money 0
9 O/ Q3 ]% b9 T/ Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] N$ e1 F; n9 J7 e
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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) k3 b; I, G2 T9 A) h
get-global-proportion2 L" o3 I! I6 ~# R, E1 G3 \
let trust-value, m5 `7 l+ m1 G. P. Q' m
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)7 n5 s, C0 ?& T8 A7 o+ g; u
if(trust-value > trade-trust-value)
6 m5 P: T( L% P. O7 D7 w F[set trust-ok true]
6 ]# l0 b1 r9 k# rend* P) a% }+ `+ ?' b) T
: _ U8 s0 p' }* p0 o6 i+ | u4 |# Q
to get-global-proportion$ n0 X0 B8 }# Q$ z7 e; f) e
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ M/ ?8 S( P1 D: {. H- }( d; X* e[set global-proportion 0]1 {( t6 O2 P% g0 \3 ^& t
[let i 0
& {' x5 X0 @2 i+ ?7 Rlet sum-money 0$ t" u6 [6 V$ n) t A
while[ i < people]# T. S0 z% d/ \3 X# U- z& P
[
0 H* i" Y' G, C8 l9 H& L+ e2 \if( length (item i2 Z, M- Y" A' n
[trade-record-all] of customer) > 3 )8 h9 I! S: N; b. d5 W
[, O5 m3 r! r1 m1 R# e& B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), j. o! {6 J/ o( s0 L1 n9 s. F
]- J# ]$ | J$ r1 ]. R Z$ |
]; i2 q8 }/ B, f9 I: C/ f
let j 07 w# J3 m& f/ w- m7 m7 a% b
let note 0
. _+ M1 W- k& X! l3 Mwhile[ j < people]
1 k2 y& W4 i2 e V, V! j[/ A. r5 U$ H: m+ W; F! Y* @$ _: P7 g% c
if( length (item i2 B3 I' p8 B5 n* X1 n
[trade-record-all] of customer) > 3 )4 D" U; p; Y' b
[$ p2 i D8 e3 a ~, o a
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 U' F* I1 x( k6 H4 k t0 s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 W& n, t' Z* d I
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 f+ r" G6 V# ?2 c3 V& y9 h]/ I: `$ k& v# R/ I
]
& Y3 u% ?' e' E7 {* h' |/ V0 Jset global-proportion note
: j5 \4 ?. O: i]
2 ~$ f& ^! d$ a3 `7 zend. _2 v z G* `4 s1 N: T
% {0 Z# s3 K }, ^4 @to do-trade/ y5 t" |) R$ g% l! ]
;;这个过程实际上是给双方作出评价的过程
& d! U F5 @6 C' R0 fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 R. g$ }. c' b F1 A4 |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' v+ }; ]; y( c
set trade-record-current lput(timer) trade-record-current+ F$ O$ @: m8 B" I/ F' O
;;评价时间' ~5 U' H0 R- _. ~' _& P$ |
ask myself [3 v) Y0 @; o# H' x
update-local-reputation8 F* K2 x1 V7 T5 q d: G$ T9 r
set trade-record-current lput([local-reputation] of myself) trade-record-current+ Y' Z! F; z$ ]6 k7 ~% h
]
( B5 Z3 k- J4 \9 S( Dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 R! p J0 I+ i% v* U;;将此次交易的记录加入到trade-record-one中1 N; q1 W: y' D
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 J. k/ d* I$ R8 `+ ?+ Rlet note (item 2 trade-record-current )* E" W7 r, ]- _. m5 b
set trade-record-current( n% f6 g j/ S# y# ]4 z
(replace-item 2 trade-record-current (item 3 trade-record-current))
: x/ [! a: S, R& k& a: e/ |6 gset trade-record-current
. B6 w% T5 T8 m% c# b$ l0 _: _(replace-item 3 trade-record-current note)
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: P0 g0 b" H8 J2 Y) ]
/ J5 O6 W( J6 ] ?( G/ }ask customer [8 o6 h0 y3 R8 w0 i/ \* \, s
update-local-reputation
8 r, Z N! q/ s! R1 h+ U7 wset trade-record-current1 Q& @% J8 h& v. I2 n% _/ C
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # ?2 `& D. N G: w1 W
]/ d k8 Z" H, ~# D5 {
3 ?% P# [ H( S& w" ]7 K7 k( @
; T( N; @$ f# I L- \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% E7 ]) e# [8 O1 k- L1 w; g3 z
' j8 {% v4 [% q# Eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ j% r/ h# ]; n# s' `7 \* ^/ Z;;将此次交易的记录加入到customer的trade-record-all中& f. }8 ~# e0 i$ b+ z9 L( j5 i
end
" s% Y. J H; _, X0 B0 {1 h. a# }8 ~9 n! C# L
to update-local-reputation
& Q8 }, ]; T# d" q& M5 Yset [trade-record-one-len] of myself length [trade-record-one] of myself
8 U; Y7 s" u" @$ `: H. C
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;;if [trade-record-one-len] of myself > 3
" r( _6 ?" T4 t# l' b$ Uupdate-neighbor-total& c1 U' y& m" |' K
;;更新邻居节点的数目,在此进行% g, o6 K @' ]% C( \( A9 P
let i 3
- L+ u8 e; n% H% Z' t( |let sum-time 04 y( b# b L; G1 _
while[i < [trade-record-one-len] of myself]
# R. H @% T- c p[
/ x! t/ p1 E4 d. V% q9 Tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 U& b1 M! i7 L5 i$ J9 x, D a- w6 {set i( f" ^! r, c: Y; h3 p9 ?% I
( i + 1) N, J' z! S. y {4 |" p6 P
]
2 s1 k% t- V! _4 u$ ]1 O$ d% wlet j 3
$ G3 X% y$ q. ~0 i, @* A/ C+ dlet sum-money 05 j: L8 h1 H8 e+ X( B& ]) x
while[j < [trade-record-one-len] of myself]
v7 {1 W: E: X) e3 X' A[9 H ]: O) l* ]: Y
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)+ K( ~0 g; G4 ?0 M3 n; u) H
set j
! c( W1 x; H+ m- {6 _( j + 1)
0 y7 a( u, A+ d3 ]! ^! h9 o]% w$ z8 @; J5 C$ [ X9 I1 \2 r
let k 3
1 b m5 }0 r- X) _$ ^) v4 {# Rlet power 0& N; U! V& j2 A0 f
let local 0- h2 B9 y y; w4 A! k. U6 Y1 `% x
while [k <[trade-record-one-len] of myself]$ T9 K$ J Q$ G/ P5 E- S$ B
[
r; x( e8 `6 v& Dset 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 g6 H% Z0 T/ w- a" m
set k (k + 1)
4 s% k7 @+ l `( ?6 c% B* q/ X! L5 []
- e1 p S u7 J* y0 l9 q( [3 `" Hset [local-reputation] of myself (local), U$ r; Z8 ~2 p( x4 s0 n
end
' |2 t* n }- D: ]1 N
6 B: f- o- h5 @( {4 u9 \' X2 E$ Gto 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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% ]) S& p4 i4 u4 D/ U, Y
end" g9 g# _0 W, |* @2 f# I8 w
3 l6 H2 e2 W- V+ T- V( h. N6 D3 gto 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。3 I& i0 j* e6 C5 G: l2 F( i& p
let l 0* X6 `7 G! N. ?! l3 X
while[ l < people ]
5 n0 I8 Q9 ]% R" D# J' r;;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
5 ^, ?4 B( D4 {8 d3 f R[
3 c. i5 f4 Y1 ?& h# e+ jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 G2 v% J: e1 p1 T5 L1 f& `if (trade-record-one-j-l-len > 3)
( }1 ^+ P( W' x; a! L. R! }[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-one9 H* Z5 x# m0 R0 i f% ~; Y& U
let i 3 y6 s; j; W2 T- K2 k+ \8 n2 v) c, [3 w/ k
let sum-time 07 ?; y. B8 O' f) [( `9 W) V- Q
while[i < trade-record-one-len]" r+ ?$ d. R6 Q K
[7 y. ]3 M) i+ O0 H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% {/ T& E2 j' s# l; V: m
set i8 B9 K' h; Z' \8 E1 o6 J
( i + 1)
8 m1 }# v2 Y; D n]
2 C& y% Z. g7 zlet credibility-i-j-l 01 ^/ [. k" X4 E8 D5 X2 Y
;;i评价(j对jl的评价)' L" W2 A5 J; R" u/ a
let j 3( o. n. r% u! m# `; T3 S
let k 4- t3 A9 V9 p2 h x! ?: i. v
while[j < trade-record-one-len]
6 @& @& E$ K4 |& N; B4 G) h[$ ]9 R3 Q4 E1 i- \' \
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 G7 I" B U& j9 d7 Q# K- M9 d6 _9 J
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)- I( s0 t6 f0 z
set j Y) Z3 F) l5 q. A( l) ]/ @
( j + 1)
9 O4 x8 X6 F8 R0 l* Q$ i5 v+ @2 [* e]* J! p2 W) s) i8 M8 E$ H
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 ))
% Y6 H. ^/ l+ S( A# e( n. C4 p
2 z* b) e$ J" g; x& {: ?' u4 l
7 d/ t; z- \% V' S( Q8 \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! J- S, w# x2 ]
;;及时更新i对l的评价质量的评价! ~% A! Q6 \% ]7 |# I1 J6 E" _3 K% y2 e0 i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; n) a, q2 u- P" [% C- ?
set l (l + 1)
9 _" i' x* \7 P$ ~8 s]
+ B k) ]2 B' `% b3 ]1 h/ Jend
6 A- [: ]8 v* c/ p' Q$ M. r+ [, [1 y6 {
to update-credibility-list6 d& p& {6 i3 d5 R. C
let i 0
5 e0 Y' |* e1 k. bwhile[i < people]& w/ p0 q4 T4 O c' {6 O
[# \, S; \/ q" n$ C6 B- a+ u( _
let j 0
$ a6 G. R+ e( I \& R, w- V* u( Tlet note 0+ ?1 X3 ?1 X! J7 L2 X( ^
let k 0
2 a% h, @: d- `6 X" q$ d/ g;;计作出过评价的邻居节点的数目
8 Q8 f; R0 X$ F3 z4 c6 iwhile[j < people]5 h; x, L5 s% g: G3 B- n
[$ b$ [$ a/ ^3 D. q( t* c! }6 K
if (item j( [credibility] of turtle (i + 1)) != -1)5 H" n& p: [/ c. G' C
;;判断是否给本turtle的评价质量做出过评价的节点
9 q% ?+ P3 F- L4 S[set note (note + item j ([credibility]of turtle (i + 1)))
' V0 c5 w/ _/ @;;*(exp (-(people - 2)))/(people - 2))]
- u4 \, Y& v7 d2 M# C9 W3 Q& A$ q, xset k (k + 1)
0 \7 q' N& d( j/ S" J$ y8 z]7 R Y! `3 P; E, a- I, _4 b; r/ V
set j (j + 1)5 V9 K/ o) T% b$ M1 a. T
]/ G) V3 ?1 ?$ H) x! Y. Z4 V. w
set note (note *(exp (- (1 / k)))/ k)
3 g4 G' P M9 u# ^. D' sset credibility-list (replace-item i credibility-list note)/ E$ M. D* z& K$ x! {6 H( J% a
set i (i + 1)
3 K* K8 A: v- i5 U]
: P1 p' g H7 Z" S. ]7 @end- X7 |& J% m- Q4 a! `9 J8 y
$ o3 i" V6 z- D2 d: I5 i6 G
to update-global-reputation-list. G) [& \3 d! N* l& _
let j 0* L* W2 r" ~+ c9 D- ?
while[j < people]
! @8 x/ i; u. |$ A( R[6 P1 }, _* F0 U1 h) ~, D
let new 0
* v, J; p: B% q;;暂存新的一个全局声誉
3 H6 m& I9 ^7 j2 H. Hlet i 0
1 b' W- S, h: |$ elet sum-money 0
1 k: M+ L% e0 r* G& T1 _7 Llet credibility-money 0( D" O- X( G6 |- |2 a
while [i < people]
" L/ Z, [' l/ m3 k3 x2 {5 k7 _[
8 b9 H! i; g$ O n1 Y& d, a$ Cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 H b9 L! k# e0 P1 p0 _set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ V k) t. r0 t+ N. F+ \% ]* h0 P
set i (i + 1)
+ T; P+ L! H& N/ h; [ V. A7 V7 O]# P0 T3 k, E' ^: T1 ?
let k 08 ~. z+ z; Q# K9 h* _
let new1 0
8 }, v; E# ?! [while [k < people]$ e# Q* Z u0 l4 J. y( v; |2 K1 g
[
. V3 {+ T L2 h# m% rset 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)
/ R$ T* ?! ]; L& Dset k (k + 1)6 K) `8 \ b5 K o9 b+ R2 R
]1 ]" j4 \( j+ E6 A6 }7 c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 i1 @. @# W. J
set global-reputation-list (replace-item j global-reputation-list new)9 `6 X- W: {) `6 L- \* w/ U
set j (j + 1)
* l* y r$ L! e" Q, l' v( c; U/ \]
) H( v7 D5 O, i: W. ^! _end
# p, S1 q! C3 {+ z5 E
& Y6 J% U/ P% }, d4 Q* {4 z' `0 D
1 ~+ L$ @* x, H8 b4 g
" T! E/ n6 s- G2 A& v: M0 D2 f2 Vto get-color
( [* r- z* E- k# P+ |/ k
# {/ X* T2 c. X+ V7 {3 Z2 L& ~set color blue! P3 s T4 ?% d! U* m) {- v( ]% }7 ?
end
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1 g9 H) q8 T, {8 o* m2 x: Y- ]4 vto poll-class# c0 \; N# ?- R( Y% i; O& y, P
end
, K3 J) q, a4 g
5 f5 C4 N# I$ \8 I j6 M1 Lto setup-plot1
, t: g/ R; b1 }2 Y. A" h7 ]
, o3 O7 l4 D# b$ K* jset-current-plot "Trends-of-Local-reputation"
& p& M* l. r6 d7 p8 h' n# d7 I3 }7 S% R& Z. p! x3 Z3 {& I/ i
set-plot-x-range 0 xmax
% ~9 V+ A( Y3 P' Q4 g
% O/ O" S, W0 B# A, E, Rset-plot-y-range 0.0 ymax$ s1 \* J9 [/ J& c7 ]
end- y* L8 X# q# `
$ W; a. t7 d6 v& k7 w! dto setup-plot2# M9 l5 g! h% g% \/ q- V
, Y) Q, g/ L: P) w) j. Yset-current-plot "Trends-of-global-reputation"& f7 Y: u6 s+ n; b
9 Y( q* a! O% O# o1 K7 ` t F: c
set-plot-x-range 0 xmax
$ ~) k7 s) P% }' A8 x8 l9 R+ I" H
; U8 e% A2 F0 E) q7 Cset-plot-y-range 0.0 ymax& `1 T# ^( x: S5 P
end
0 M7 i/ u) s8 u4 a, d% N2 ]8 _5 n2 C
to setup-plot38 q4 K3 O% F N( s1 l: X
C6 x. {1 F5 v* X% t6 Wset-current-plot "Trends-of-credibility"1 O0 g* |. R5 |' }$ L/ b
7 t' B% S% }. \0 |- G* y( Yset-plot-x-range 0 xmax
" y! \( v( I* k* A/ e }# H5 ~. i! o" G0 c" E; `' Z
set-plot-y-range 0.0 ymax
# c1 @. ?* e) aend) _/ k5 n( i5 y) h5 V9 d; W
+ T8 N. T" u2 m7 { v2 r, e4 Oto do-plots( j# c# O" m: W8 d
set-current-plot "Trends-of-Local-reputation"" ]3 I+ P8 e1 }$ W! z6 J
set-current-plot-pen "Honest service"4 k0 w: z0 t0 I3 L+ P% c
end1 }3 P0 d7 t/ k) y1 k, }8 `
0 y7 A' Q+ f# P/ z1 f8 b[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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