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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" J( \8 l$ w" G' k! K- L
globals[
0 V* M, S) C: z" Fxmax
, ^: H7 G& d1 O3 O2 B" C6 fymax
0 A$ ^- p' ~ ~* t2 ]$ G0 W4 Xglobal-reputation-list5 N# |& Y; U2 }9 J0 r
, \2 o r$ G4 b# X- C$ Y;;每一个turtle的全局声誉都存在此LIST中
G4 `# a5 a+ t3 G" G* ~, Bcredibility-list
6 x' o* q. C* c( `/ l' j;;每一个turtle的评价可信度
! w9 c, U& }' e" M9 O9 _honest-service
I( r4 t5 c8 Hunhonest-service
' r/ x$ P* Z5 Q& g4 W" Z( U7 `2 Zoscillation
: F) u9 u5 K( vrand-dynamic! F8 L# y' O3 V0 K- _1 G) V: Y3 Y) m
]! F2 x& d) d/ w* r0 U( s
0 r8 p" V" G7 L" W3 x- q/ Sturtles-own[1 X* [9 n7 K0 u5 f; ?9 j
trade-record-all
6 q; p G+ z9 t2 c' _. E9 \;;a list of lists,由trade-record-one组成
( A& E0 w) Y6 P$ _% k* C" Ztrade-record-one' R5 R$ }2 o6 R6 B$ i
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 L- w8 f: m; u, C4 i
9 Y) _! D) ]. W5 A5 M/ ^;;[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]]; W. b& ~+ I9 @/ c; l3 G ?' q
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]' m6 y) }5 l* a Y( ~8 t5 s/ L9 m
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$ c1 Y- Z/ ?0 s) B; G
neighbor-total
; {; M: p6 g b;;记录该turtle的邻居节点的数目
A5 Y! L. e6 l; i9 I$ n% ]: Ltrade-time; V) d( }! i8 i5 Y( x4 F
;;当前发生交易的turtle的交易时间
" m; t3 h/ k6 P% y& oappraise-give
0 j6 Z! a( w" v8 V;;当前发生交易时给出的评价# f# \# ?+ M( _4 N
appraise-receive
" z% n/ X5 S9 e2 S7 |; r+ B;;当前发生交易时收到的评价. S6 o4 L7 @! D3 r* I
appraise-time- P* ]/ u) A$ o7 X9 g( C
;;当前发生交易时的评价时间
3 ]: A' ^" c2 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ \% k- J4 b. ytrade-times-total
) I+ d5 q' l7 B5 f;;与当前turtle的交易总次数
! Y& f R# X) Z5 F$ A A# Ltrade-money-total8 \% J: ~/ n7 K% O4 D
;;与当前turtle的交易总金额8 H, }* S% p6 t+ Z. D
local-reputation
( E, q$ t C' W! gglobal-reputation# }+ B G( S2 T/ r6 d1 w
credibility' n" r9 G/ u5 z. H' l9 A
;;评价可信度,每次交易后都需要更新2 L% d( w& r" O2 _ _% e Q' E
credibility-all" c7 ^- ^1 y" e
;;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2 c4 T( Q3 F: X3 N# E
! U, e; b. D( d/ m* c: y
;;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
& c$ {7 N7 v ^+ R. k/ K2 E6 wcredibility-one# P5 l+ m7 n4 @
;;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 T1 X* @$ B( N. Sglobal-proportion! R( B* Y! X2 I. `& Z
customer" k$ w B# i9 C& [: ?1 `
customer-no
; ]" |' R- R0 o, @2 w. Ttrust-ok' y" j+ Z- D: F# P
trade-record-one-len;;trade-record-one的长度
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$ v: e7 f+ {% Z/ p( ? O
* t/ A& ?6 n+ x5 J3 |. D;;setup procedure
2 h5 j- q5 P6 h( E% _
9 P* f, p0 T0 h- E& K- H. qto setup5 G$ G# l! Z2 R& ^! h9 [6 e5 b* s
" G9 @" W; a! y! }ca
$ T% M% L f( z0 G- p8 r+ }5 [ i; J& h0 |4 `! Y
initialize-settings
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crt people [setup-turtles]
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& p6 d9 o2 {8 K* |; \ c3 j0 oreset-timer. `) S& w1 o4 Q; Y" w
4 V. a9 S6 f" H3 Jpoll-class' H" E6 a+ [5 A
2 t j9 L; t6 i7 ]5 W o* O. L
setup-plots
& \) [6 |! O8 Z5 W1 ?1 z! U- f+ ?& \ b3 q+ |2 O; k6 q, G
do-plots
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to initialize-settings
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set global-reputation-list []+ z9 p, V, |% l" ^0 r& x
! ]& B( @0 w+ ?2 Z1 c
set credibility-list n-values people [0.5]
& n% k7 n+ {( Z W; _- R
- V9 C% Y' R& I6 T) i1 Y" Gset honest-service 0
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0 k; Y4 G. q4 ~/ q9 w: Pset unhonest-service 0
6 u- `0 }; x: x% m/ p" S0 F& L& L- G" D
set oscillation 0
3 y4 u g; Y# b; G/ o+ D- j6 k# J! r" i
set rand-dynamic 0
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. E5 m2 [! i# s) s/ @, b. z [, a
to setup-turtles & Z5 A7 k |$ C3 O2 y
set shape "person"
5 p P# x; a( }9 dsetxy random-xcor random-ycor0 f) l" G3 P, Y& r- L
set trade-record-one []( N) {. ]) L3 h2 V, `
7 |9 q0 n$ y3 i. \8 o; n$ r: W+ cset trade-record-all n-values people [(list (? + 1) 0 0)] ) y+ S2 P" u* @" u M5 a) O
6 w$ c# K! K5 ?' Eset trade-record-current []9 G2 e9 M a( }4 I
set credibility-receive []% V1 s) a" [+ v- |
set local-reputation 0.5
& H& a q( x" v0 p/ i# G! Kset neighbor-total 0, Y. [7 G; h. W+ `
set trade-times-total 0
( d3 i+ h% n0 m2 V' iset trade-money-total 0
: ?9 N3 I" n5 j$ m0 a" U. n0 N6 gset customer nobody K$ \$ @1 W6 a# j g% ^
set credibility-all n-values people [creat-credibility]/ n' I! c/ Q+ R( s6 c. {( f
set credibility n-values people [-1]7 N' ]; E& C8 v! C! h& c' G4 q
get-color8 `2 Y2 g- k, y# h8 N
/ e& _& F4 Y" \$ M- K4 D7 Qend/ p2 n, X6 h' }# b6 ?
# {% I9 ~' B! h) tto-report creat-credibility
+ ^! ?7 J& X# ~- ^9 { J+ oreport n-values people [0.5]
5 k0 d3 p4 u+ c7 qend4 `6 [8 E8 ^/ _& a; h
- S, _; H2 i4 H5 ?
to setup-plots' l+ x' B3 `! c$ ^' X' C2 F
% m: b9 r$ _, e6 xset xmax 30
M) r5 h( \% b
" M4 G9 \; {! v: R- w, U; Iset ymax 1.0
& W% B2 M2 U; y4 c) o) F1 |: s& k
5 [3 u; G2 B qclear-all-plots
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setup-plot1 d! a) ^7 A& U* S( R) Z5 E
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setup-plot2
% A1 h9 a0 q- @! D
4 B( _( K& ^9 R" |: fsetup-plot3
/ f% P; I: H4 H# h6 @: Kend) M2 b3 ^/ R+ q) r h4 h
# w) t$ w% B& Z, v
;;run time procedures
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to go) t. ?6 d8 n( P* L2 l
" S5 j# c. Z) gask turtles [do-business]8 s! S; |3 M8 h, L6 b8 C
end
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to do-business
\+ F d3 N9 d4 w! q! k. m2 F% K; W/ W Z0 ^1 [
- ?, ]$ G4 Y$ E# w j4 M& A( z4 R' \0 Nrt random 360
) Y6 m$ ~ p0 u% U0 `) |
- s( k7 g& P9 x; [# {fd 18 f: X5 W+ A1 P. m
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ifelse(other turtles-here != nobody)[1 m) t) E3 o6 c0 ~
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1), d0 }: q- y0 g0 I5 k% D9 I
[trade-record-all]of self
' e6 f Q% r& p/ Y4 [;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 z, B3 S2 q" R2 K, C, G
% Q2 ]! s- n. v; W% o! [$ g. Pset [trade-record-one] of customer item (([who] of self) - 1)
& T% @& a. V9 `[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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% f7 V `" d5 t6 n, fask self [do-trust]% b' w2 }* \. H5 c( A
;;先求i对j的信任度& S5 u" i) {; r
1 W. B9 G- m! L' n/ d/ aif ([trust-ok] of self)* P' ^. U1 _9 i
;;根据i对j的信任度来决定是否与j进行交易[
7 i6 x0 w3 e% l6 R. _$ ?* aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. c* J7 ]" t) _% @7 f8 C! B
% W# T( k% B$ n+ a" r( }
[
* v: A* S3 Y$ S: w5 }+ v& S6 {. V2 s; M9 C* O" n) f
do-trade% s$ |% C" f' b K- P5 Z
( v( |1 b" i# c. w8 |
update-credibility-ijl* {: h: q1 l! ~) d7 I5 U0 V9 {
3 N' ^. ^5 U3 A; i# \, _update-credibility-list
/ Z; j; k% ~% P7 Z
3 x" r, y. d. _" v) m5 p
+ }7 r, A8 x, L+ @0 rupdate-global-reputation-list
. Y$ v) c) a5 [4 v+ C1 J& T- ?: T1 E$ r2 j
poll-class4 h: M# ?* C% w
( N3 \' O. \- Dget-color
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5 i' h6 e) E5 r" h$ o]] L. N r2 N( x" O
( X% A; y# S0 f% E# T# g$ G
;;如果所得的信任度满足条件,则进行交易
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[
n+ w C' g' |9 M
z. R5 z1 y, ?# M8 f5 V5 Jrt random 360; ^/ X: p% u) G5 g% s" f! V
. Y2 q8 M& M5 t% b! S) b8 e
fd 1/ O0 D8 {8 R) d4 G& T3 J+ L% m
; A% u8 Q' `8 z% b6 F+ `]
" x7 M3 K) b: E. A" u7 j+ `! ]: [! v, c" J' ^
end5 d/ X% R3 X( j! l- ]
$ m: y8 i4 u- P9 p" x+ l, i
to do-trust
% v: w0 ]1 l; o, [, k* uset trust-ok False
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let max-trade-times 0
0 x( o& K# y5 B3 h) w* A2 g; yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 r1 P m4 \5 J7 C: ~4 |let max-trade-money 0/ q! s7 ]$ |7 f( C/ y! U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 h0 q1 f% B& k& K+ rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( j" `- I# J6 S C
9 Q0 ~2 y( Z: L) t
5 F! g c$ g) ?9 Q0 [) J; o( zget-global-proportion% u( H$ u' |. c1 U
let trust-value
! U0 r* n+ e& F, e7 {6 x% o5 ?/ Y6 jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)1 ]& R4 F: {3 Q" \/ u: s' a2 f
if(trust-value > trade-trust-value)" ]- J0 @/ K, m# I( X" c
[set trust-ok true]
1 i1 w% v2 y; C5 G r# |end
/ M& ]- d m) X6 E) X/ a! G2 I( P
to get-global-proportion. n. w5 y$ C _) h- |0 j/ H% b/ |4 a& X
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 g9 l8 `9 q# F; X! e5 Z8 c1 d
[set global-proportion 0]! q R4 Q/ ^$ R3 Z, b
[let i 0
5 @: U& x8 u, q& N& f+ plet sum-money 0+ @+ J: V6 E( F* a( B& `3 u
while[ i < people]
7 I1 R1 k9 f9 I u5 Y y3 v[
0 b0 {$ Y" J% zif( length (item i* O2 _, w5 V1 z4 F
[trade-record-all] of customer) > 3 )
# X: I4 O2 r& h+ t[ p% ? y ] h
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' I8 S: j4 l! X. a8 {1 J# W
]
+ S5 Q+ f( M4 t3 {( @: B+ U& U]: A& f9 E" v8 v9 {" Y! ?; |
let j 0% ], ], l. M C- O
let note 0
- ^3 o( J& I& w/ W, d5 a- @0 P) hwhile[ j < people]
9 h: I- l4 h/ ], F; p8 \+ B[
* [# |6 P& k; S* u" q7 pif( length (item i" B! m- [3 L- g5 {$ H
[trade-record-all] of customer) > 3 )
. P8 l% \5 g, l. D; X. H[# V i7 a) F& U" k- n3 S- @
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 V- ~; N4 o5 N6 |: o
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
/ N5 b$ q W3 h. A, E- j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# H/ x$ ?! {5 G' r]
% O5 j' t- v; p$ x, z]4 P' R. o) G `: D
set global-proportion note
' w4 Z7 @8 v% I* H2 c& i]
" B" U' |* }' }: n7 h- U' Pend
1 r4 ^: V7 b% q1 ^) H
5 U2 `( ~9 g0 b3 Wto do-trade
+ }% R, s8 X2 @( O;;这个过程实际上是给双方作出评价的过程7 D; t, P. l c: t6 i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; [) t8 h: e4 ^$ y1 ]) [' P" J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& t. y& L. S1 U
set trade-record-current lput(timer) trade-record-current
0 G5 X+ ^+ P3 N2 P" k2 K;;评价时间
8 p4 H- u/ [/ c# f4 C! c5 Task myself [
- [( k# n: W' t5 X+ B+ I) s. ~' jupdate-local-reputation
2 } N, m. f# ]0 i& f1 `. jset trade-record-current lput([local-reputation] of myself) trade-record-current
9 W" p% \! ^3 n& {]
9 X" D2 Z L; m" n2 K8 q- i# O8 fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, g6 F. f* Q* t- U;;将此次交易的记录加入到trade-record-one中
( U( Q2 u. t9 g8 T( k2 d) N F4 Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 [$ ~# G Q Elet note (item 2 trade-record-current ) ~6 Z2 o/ k! L6 T( N% w" d
set trade-record-current
' g- N- T5 e$ J9 F(replace-item 2 trade-record-current (item 3 trade-record-current))
3 I/ s3 ^* U, c+ x7 o+ H, b. v p) Iset trade-record-current
6 V( a! }; Z9 I; o! @(replace-item 3 trade-record-current note)5 v! z) |) f9 {; T3 W
h: ~7 m; C [. n' \
$ g1 q+ }% s+ t; Xask customer [
L$ v3 _. n6 o6 U2 _update-local-reputation
) g& J$ H' `7 M7 zset trade-record-current
1 z# ^, M! G. U" z" h# c" [" g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" \4 }$ L& m+ ~]4 V# g7 B P/ t4 p
G- r# c- T. H$ h
- a) ?& E& r- E% Z$ [' Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( @+ ^" J$ t' k8 }0 A6 u
6 T4 T: N1 ^. h/ \* ]; O/ y9 @) rset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( i! G' ?3 s. X# T# e b;;将此次交易的记录加入到customer的trade-record-all中
; d) h$ B; s6 f% J0 _end" V3 C. v9 @: q; [
o, I- N: M# B2 F
to update-local-reputation
* ~* n6 `: j+ x) \, Z8 Fset [trade-record-one-len] of myself length [trade-record-one] of myself+ q. M, k r$ o( b
5 ?% V* T6 [8 D$ |
5 D7 |5 [) o4 p5 H: m0 {0 A+ v
;;if [trade-record-one-len] of myself > 3 ) ^- M/ ~5 k3 a. ^9 q
update-neighbor-total
2 f# I, Q4 Q5 q: y t+ r;;更新邻居节点的数目,在此进行
$ K8 W- V! ?9 u! q- elet i 34 C6 H& V, t% h$ D( c4 b7 f/ x
let sum-time 0$ i& d' J- X( F5 e7 }
while[i < [trade-record-one-len] of myself]. X7 D# |3 O* n, f& S
[
' M/ ~+ J8 s3 E+ B3 oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- i- g( i+ Z9 h( H1 P" g% d( D# q. ?set i
! {9 _ ]3 s/ X2 _. D+ r0 W, q( i + 1)2 b( g7 N0 n9 K7 W' \' }. @
]; O" z! f5 j: m* J$ J$ C3 H
let j 3
. T7 ]; n0 |0 t5 v1 Ilet sum-money 04 F. ^+ J% Y; U" `# N0 t
while[j < [trade-record-one-len] of myself]
2 e; u* B7 W+ Y8 C6 U! i* R* s[
' _! h) l4 ?. E8 L7 M& sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
* b9 k" U( K% Q$ Zset j* Q( Y" `# U) E7 q/ Y- z( G
( j + 1)
3 v% J: ?) c! a4 N4 }: m]/ a/ h+ j: [" }% N% N* I7 b/ V
let k 3
3 @6 M& A* V2 S6 v$ N5 Dlet power 06 |: h# ?& w' D) D
let local 0& }8 g( d4 H3 c" k! P( c+ f! J
while [k <[trade-record-one-len] of myself]8 I8 S% [* g2 f6 X; @0 X7 O' O- E& ]
[ m, g- {9 u, R6 H' m
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)
. L8 g% E ?; _& k* wset k (k + 1)
& U6 I8 j& ] N% a1 Y- b" A+ i" l]- E' A- n, a I- T
set [local-reputation] of myself (local)
@3 _( }+ X' ?; V0 hend- y" s* S3 R: p# y. @+ A4 N
$ u! x- V. Q1 I0 T, V' j( j
to update-neighbor-total( C( q5 y2 j/ e% d
$ p" L: Y8 e, R# R2 w$ J& Cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] @* e3 G/ D' ]6 G; j" W7 }
/ F4 _* |: k4 w1 D
6 t5 J. F$ F0 @1 R$ @3 w# wend" N- P5 Q* H: K
9 l. w. b/ H# f. q: u; Q$ D
to update-credibility-ijl
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; ~" `0 ]- ^5 C" f( [( u;;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。
6 W+ ?: D& u: y% R9 c5 Wlet l 0
0 n+ s# Y3 E7 O" F- f$ \! gwhile[ l < people ]! X( y7 U6 B- k. E) G
;;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# Y; n6 c; I3 a: Z
[! \% q, @. Z5 r0 H# W/ L
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ e* V" Y3 D: D h: K& l; Y/ c
if (trade-record-one-j-l-len > 3)
: e1 t5 B+ E5 x[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
J' L6 d& o, T: ]& @; z) |( U$ x7 ]' N( klet i 3/ q/ A* i; G6 l9 g
let sum-time 0
) { [) |* c' M9 [while[i < trade-record-one-len]
: C, r# g+ P0 O: L[- x) I1 C Y; v( o& q( Y' x
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# c( a1 [$ E+ H( Mset i& @9 h( g, E- d- e6 _* L
( i + 1)
8 h |" }" i4 S]
+ h- j! q' g+ v% P8 T1 Plet credibility-i-j-l 0
( a0 h' ], v; Z2 [" W/ n;;i评价(j对jl的评价)3 [; B2 B; k5 `1 z
let j 31 y, p6 v$ w4 l
let k 4
b6 ~: c6 ^% D1 V$ s6 zwhile[j < trade-record-one-len] ~& e8 A! X/ ]0 J' i$ D p
[5 O9 K$ k% w2 v/ d+ @8 h) @
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) [. \3 Q3 a" i. c4 z! x* L
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 @$ o8 B( cset j! f7 N5 ]1 M! _
( j + 1)
; X0 g) l) R& N# I, s8 h( H]
, g* D9 ~0 f0 J3 e+ k$ h+ Y; @) Nset [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 ))
. F% |5 P( B' _$ r8 l$ ~2 `, s/ C$ [, \ p8 b3 o
" v+ F& A8 A0 J1 z3 e5 r+ k) h
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. G/ `; |- w/ J# ~+ S0 c;;及时更新i对l的评价质量的评价' k, C- y x5 k/ i8 _
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! L3 M+ i" ^7 b. [/ l+ g
set l (l + 1)0 W, G2 W- M4 j1 K
]* f* x! e" r7 A, A5 }% u
end: f2 B& J* s3 ~" H1 q8 t
+ E' |& @% w/ |to update-credibility-list/ P2 s F2 X2 I6 g
let i 0
8 D1 ~- N- y6 ~3 J- Twhile[i < people]$ K o: ~+ [4 ?5 b- I: {
[3 P( B9 u7 m# A( q- g
let j 0
2 m: l5 k% @! S L7 v9 L! R; e% jlet note 0
1 Z# K7 _% c: ylet k 0
_; T- \' v! g. k* e8 t;;计作出过评价的邻居节点的数目
4 [2 F( N: e7 L0 V5 G# h! uwhile[j < people]* k2 B1 J- ~ y% v9 E: O3 {* T0 k, m
[3 P) q2 z) m6 k1 `- N
if (item j( [credibility] of turtle (i + 1)) != -1)
, }6 A9 \3 q6 d2 `/ h& l5 [;;判断是否给本turtle的评价质量做出过评价的节点
2 H3 x2 g; y; K( r7 ?[set note (note + item j ([credibility]of turtle (i + 1)))
* V* A6 D7 t5 ^- g& s+ b% J;;*(exp (-(people - 2)))/(people - 2))]5 u* E7 n8 c% ~; p3 B5 I5 k
set k (k + 1)
: z; S+ s% |8 i$ K]
8 Q& ?9 ^5 s; j3 h/ ]& b5 ^2 iset j (j + 1)' b1 O1 U( q+ Y+ @4 w- h9 U
]8 {, u3 u. K: O, Q2 v0 i
set note (note *(exp (- (1 / k)))/ k)
$ o$ y$ W# B; i, a, r8 L4 gset credibility-list (replace-item i credibility-list note)
; f3 t, U1 g/ ~set i (i + 1)4 F. ]' z5 h3 t' V( C, B4 d! U
]
) i( i3 j4 q% P' p, rend8 _& @- F$ c2 S8 w: N7 G
! f; F) z% U; Q4 E Q8 \to update-global-reputation-list8 D# R1 y1 v- z
let j 03 {) k* w/ l2 v' q3 E! M+ x
while[j < people]1 e" R( ~6 B7 k* Z6 T! \( Z6 j
[9 F3 a( h/ w# ]! E/ B P) K. n
let new 0
- S9 e b- V- L$ R/ ?4 b$ [;;暂存新的一个全局声誉" E; Q; |* U' G8 |. z8 E* n
let i 0
' Q& G8 M, ~) m$ z2 k& dlet sum-money 0
) p& Y% Z$ m- r( r; E4 ylet credibility-money 0" g4 y' ^* H0 s4 k- J `
while [i < people]
8 q; y; k' q/ k' N( l# v[
- Z9 ^0 u. e. w' z9 m* i: vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( r% a2 v7 z$ s( z# }, U, p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) c! t3 S: q! L3 [6 V# N* F) T# Vset i (i + 1); F/ R/ B2 ~( O
]
, m* K4 t4 Z/ {3 A3 C6 Dlet k 0, D* f; [: o' r
let new1 0
3 Z$ m3 F- [2 g; @while [k < people]2 e+ ~" H7 k) l
[
& Z' [# A' d9 j: F6 o5 Iset 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- T5 b9 I! U; N, Sset k (k + 1)- c) n. b: P( o0 {" `* ~
]
) v6 ^( [% G5 Fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ O! @# H) t" ^& {set global-reputation-list (replace-item j global-reputation-list new)
0 h+ n3 l6 E5 pset j (j + 1)
5 D0 A( z2 T( D/ ^/ c]
4 H8 a+ \: m. a) fend+ Q' W; {$ l7 [3 ^# n+ S
2 X) K; U* ^ |$ J; N- O2 O: W
8 u- F$ r. q6 X( o$ P( K6 ^5 n" i' l% d v x' L- m) x6 ]; G
to get-color
) [ H, E( P% y5 M5 v8 K& G. A* [; B* M; M) {
set color blue& C% n* K9 B. M* g- c) c
end
+ [6 k' W- ]* h$ k& _1 A+ a
: ~3 w1 c$ \# K8 n' `! A' {) T6 wto poll-class3 y2 z4 L9 U: S
end5 G H' U" s; K4 \ m
$ c3 _5 h' C4 e
to setup-plot1
# {; E# M9 r1 H1 K
* L) P7 K% A [* \" Zset-current-plot "Trends-of-Local-reputation"
9 o$ f* ?8 Y+ Z* o) O3 H3 V: h! t% w7 t- k
set-plot-x-range 0 xmax; O. _+ E& {# F2 K. G8 A
E* `3 u+ r& g$ U0 ?& L
set-plot-y-range 0.0 ymax
% D5 [" O8 d' A/ s3 Send8 N: m" x$ X$ H ~+ B/ T* u
0 |/ n( T0 q1 W9 C5 x4 v9 \' H
to setup-plot2
8 J S( K+ N- L; M) F" L6 q' A& O2 ^7 @# q6 Z
set-current-plot "Trends-of-global-reputation"
; t/ U$ g6 j8 l( T# @1 R# P" ?5 l3 Q% N- Z6 }' n& N, ?0 X7 h
set-plot-x-range 0 xmax& L4 N. O1 k% I$ C4 a
4 u; F1 k' g/ F' P9 `3 ~) w
set-plot-y-range 0.0 ymax
% H/ o; f$ P4 Y5 ^( gend
% U8 M% A2 j1 ~7 f8 h+ a6 g |
4 K4 h* l8 }% S9 {to setup-plot3
1 T8 U) j) U3 Q. ]0 S2 C# b0 U
! [, ?% r& r aset-current-plot "Trends-of-credibility"
3 c3 R3 ?% }: N5 `) C4 B; H" Q
5 f# h/ l* G* P0 _9 Z+ }set-plot-x-range 0 xmax
. `) W$ _, ^4 f# c# G2 P3 S" a& e, X
set-plot-y-range 0.0 ymax1 s4 Z; ?6 k; M$ p/ [3 v! \
end3 q0 T v1 F3 `+ w. A9 m6 G
( f* j: ~+ R0 K4 Q4 @" ]to do-plots J/ u% I2 b5 `! E2 D/ ^* R! m
set-current-plot "Trends-of-Local-reputation"' [6 l' i& y. q4 u2 `- D/ x/ M
set-current-plot-pen "Honest service"7 ?& a+ z" R2 @: x, f
end* @ a" q/ K8 J8 i8 s
7 a) I* k: V, S8 ~
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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