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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/ u/ K# M% l, \* ], N3 W( l: D
globals[
: q% B& N1 f. @2 E7 Oxmax+ D, n' U3 L) V
ymax
$ R! a3 }' C. u" J5 hglobal-reputation-list
! f$ e8 |6 {! C( R3 O$ y) f
r- F% _8 C% M: x9 S;;每一个turtle的全局声誉都存在此LIST中7 ^- p$ N9 p7 Y7 m) J
credibility-list
2 \- x# l0 g/ V5 r& v;;每一个turtle的评价可信度
( L% G' K$ ?9 G9 Z% Vhonest-service
7 P. d1 r# s. n4 A1 eunhonest-service' {. P8 Z0 J# }( B
oscillation
. S* C, ]1 D/ p" e( U' wrand-dynamic7 \0 w: u; D7 L$ c" W# k, [3 W
]) k& W+ H/ d( z$ R! J( ]& i
6 m+ }# _! B1 Jturtles-own[7 i1 l# Y2 d e3 u8 {6 t
trade-record-all
7 V* ~8 \ s% f3 C/ @;;a list of lists,由trade-record-one组成
, b8 p- d; r6 ?# v5 c. ~* i: N: Y& ntrade-record-one
/ y5 G1 Q- M* |- ^;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* s8 D! [8 m! `8 S7 N0 k8 y6 H
& N9 R0 j' V4 ?+ \2 ?5 o( z" u0 k
;;[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]]% ^: Y$ l. X/ [
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]: ~& p- R' h1 {$ h3 M! v
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
+ ~1 ]0 M; D/ T1 F% E# J1 Wneighbor-total
/ V1 f3 `7 f, y- g;;记录该turtle的邻居节点的数目 \3 V* W/ g% n6 G
trade-time5 t9 g, J" g. g
;;当前发生交易的turtle的交易时间9 a3 t$ T; I4 Y2 Z: O$ K
appraise-give# _7 L- b) _; P, D
;;当前发生交易时给出的评价
" W" t u" t% Happraise-receive% {4 \9 B' ^ e# w) b
;;当前发生交易时收到的评价
4 z" _" w' C3 u) Gappraise-time
/ k e( U0 h* t- E;;当前发生交易时的评价时间
6 N' x* i: D% l6 \& c- R3 llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* u8 j7 a5 G3 s0 W& v' W- L% v5 [0 |- ?trade-times-total
4 v2 D1 f! Q7 ~+ T;;与当前turtle的交易总次数0 W) H( S. A$ b/ T! \
trade-money-total
7 q2 B" m4 c! k. I( c/ r2 B;;与当前turtle的交易总金额. p* v7 W( K& U _
local-reputation, ~, c: A% h* E8 H) `! U h e
global-reputation
3 o/ |0 [. G" ~& M4 o: h. ?8 Dcredibility
+ ^5 ?0 P. s- M J;;评价可信度,每次交易后都需要更新
8 a& Q) Y8 u) b. I; i1 dcredibility-all
3 G4 {! g" |; |3 O3 b;;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
$ Q4 O0 p9 Z0 d, L, G% {- S U4 u0 ?' @* x7 [
;;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0.59 d; f5 x6 u Z
credibility-one7 M* t! t0 C F& B7 p/ y4 X+ Q+ a
;;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4 F- }% _/ t$ l" Y, X
global-proportion
) ~. k) }* _; Y6 Ccustomer3 M! E$ V6 ^% R7 e6 \
customer-no
, A4 |3 E& _/ w! i2 Ptrust-ok
- k7 k3 R1 v' j% Gtrade-record-one-len;;trade-record-one的长度
% H' {) j- h: H], [) @1 ?8 T* H4 `2 M, v% e5 H
2 h6 W( s4 p9 O) l+ m2 I& B4 O. j
;;setup procedure, f6 a+ B& X4 v$ q: v- v, e: q. h
6 w5 }+ Z3 P) S; j& `, s8 E2 `+ O
to setup
4 }2 c. ]0 H) T, ~% V8 o" h5 h' v C( s1 n, l% x( b
ca
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initialize-settings
& `' m. s& A4 g0 D
* m$ v/ P$ K. \, N7 r* Tcrt people [setup-turtles]
j9 X% F V* c$ ^# C* O8 V0 ~: Q( T3 S2 q. J
reset-timer! W2 T& ]9 ^. V6 L- T
. { @, f4 U4 U4 ]/ N Apoll-class
! I* f) I2 e9 p5 c7 A3 _3 @5 `
4 A; N, J: d3 v- e% l' Hsetup-plots, N4 o$ {2 B( q- {7 R9 `
: T) ^# |, y2 N. ?6 Y+ |
do-plots& t$ g3 [+ d) j4 `/ @' t% O$ t
end2 r/ @- y9 x6 @. d2 e3 J/ g
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to initialize-settings" P- b1 }, H! d, s3 X
) B& U% v/ t) O4 H' n1 P \set global-reputation-list []
* G R3 Y1 V* D9 C R
5 @! ^( \: q0 a" Dset credibility-list n-values people [0.5]
6 a8 a9 C6 p, Q( R8 V B2 @! q" y2 q' ?! H$ n4 D
set honest-service 0
6 l. e7 ?4 `2 v; s3 V) v
( m: `. o: R) |6 }; Xset unhonest-service 08 m1 B( {4 |. X6 I
" y L$ m- `: k: w
set oscillation 0
3 @- B. P+ \$ ]/ q) N$ ~9 P5 p: x7 d& T: \* @( o4 T7 ~( i, @; C
set rand-dynamic 0& e2 F; j3 u t7 V
end! N# l7 r3 P2 E: t
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to setup-turtles
' T! @9 X; ~% iset shape "person", O( \; h. b) u6 z
setxy random-xcor random-ycor, P# {/ F4 i* B o- B5 X( k9 q
set trade-record-one []4 f' y9 B0 O4 a |$ Z/ V6 } t) \
, @4 O. T. f4 k# k, S- v
set trade-record-all n-values people [(list (? + 1) 0 0)] # x( ^7 U9 ^8 g' |) {' ^7 n
9 l6 t% K" C. A/ s$ q L
set trade-record-current []
; ]/ X% w) C2 F( b yset credibility-receive []
# ?- {& A9 E8 f" M0 w ]set local-reputation 0.5# s3 b' w+ I4 x6 ^: z
set neighbor-total 0
+ N0 x3 `# e; g: A c0 ?6 ~- s9 Dset trade-times-total 0+ k. W5 r" D& R+ Y9 [7 L
set trade-money-total 0% _3 s; E$ X% U4 g: P _* F
set customer nobody
8 r% b _) o, u# ~2 i+ ?set credibility-all n-values people [creat-credibility]
6 z& S2 B- _- z% ?* G! ^set credibility n-values people [-1]
. R% E- c1 ?2 {+ p( O( ? [1 kget-color
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end, s6 d; Z! \ W- V- p
/ z( {; C. X! s/ rto-report creat-credibility
8 b- Z% A5 \7 I8 n' f+ ^report n-values people [0.5]4 q* P! a$ I; ]" X
end) t* E) T& a% R) x; v
4 J: O) V" O3 C
to setup-plots
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. t- g" W$ ?' J. Q5 }# I( @5 G- }6 ^1 vset xmax 308 w- X1 s6 V% B, n" [8 l
& w: t0 j5 S2 b( X1 A; [, O
set ymax 1.04 z& L) N9 A4 m4 X8 f9 \2 ]
- u" a, m) ]( bclear-all-plots
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setup-plot1
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setup-plot2
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setup-plot34 W+ v" W, o0 N3 t2 z; E. `, P) W
end% i7 \5 N1 z) t% N( |& d' i
! n- {6 \0 ^- a4 X8 w1 O
;;run time procedures7 r) {1 X* \: H/ G' {* P) V7 P+ @
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to go
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ask turtles [do-business]2 Q8 \5 f, s. N* E: `' n- \3 U
end5 D0 c) S* X6 C% h
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to do-business
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( S% p, B' \+ u1 \/ b9 S
! @4 }) s$ c+ O8 krt random 360
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7 N: S2 F* I3 k, q8 r0 n9 jfd 18 k) c4 _. {6 v4 ^
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ifelse(other turtles-here != nobody)[) `% M# F1 `# T
6 s7 u* g( m3 a9 l: b* bset customer one-of other turtles-here, V( O3 Z! \; f+ v, O0 x3 k7 s
% ~( [) q+ t4 E" R1 J
;; set [customer] of customer myself1 k. _7 @' `- a; P4 P
, j8 d( r" c( M' x) \
set [trade-record-one] of self item (([who] of customer) - 1)) ?' n3 x3 h. T5 P
[trade-record-all]of self
3 p* \+ p( C+ ] a- F+ Q) g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ ^" e& G: b+ b) e% }0 m- `. J2 D
4 ~8 b0 n, D0 b3 W/ fset [trade-record-one] of customer item (([who] of self) - 1)( `/ _$ q4 v+ G% q- _' k8 @
[trade-record-all]of customer2 V! V C' `, B
1 O( W% T4 w. j# z) }7 Jset [trade-record-one-len] of self length [trade-record-one] of self, F {, D0 I2 F# M. r4 s( ?3 Q
9 G6 K. u1 v2 n& cset trade-record-current( list (timer) (random money-upper-limit))$ \( q5 Z( }& h
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ask self [do-trust]& X) ?! D+ p2 Q
;;先求i对j的信任度
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if ([trust-ok] of self)8 B9 ?0 K7 m% e( w# g+ y& j% n1 o/ ?
;;根据i对j的信任度来决定是否与j进行交易[
% h( _! O7 _. w% _" Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& K1 ~2 Z9 b8 X8 X7 W0 r# a6 @ n( R% R/ n- W
[7 T( T0 n1 i. d$ |; S
+ q# M. I! L; x W4 X; S Ydo-trade6 M4 U3 q% |9 [+ B0 c
7 q. C; a: N" w- ]. iupdate-credibility-ijl
& |( H+ w8 G' `- I3 Y' x4 O n; }- k ]1 S+ G' l( ^7 y
update-credibility-list, b4 A% p% b6 }% i1 y( a
5 [5 H$ N! U$ p- J
; P- i v3 M( g3 _8 u# F/ S3 mupdate-global-reputation-list
4 s @* G/ B# U3 e8 Y& c2 T9 H- B# {
poll-class
g2 o& S E e) C6 k E: M& ]5 U, {& h# `
get-color
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]]1 f+ ?4 k* u# z7 I
. ~( e8 L$ w' f# D% D8 Y! k4 c;;如果所得的信任度满足条件,则进行交易0 I8 y& V' |1 p. R
: K8 q( U7 n% C+ x" [" @- o
[
6 V5 U* I d/ g9 o
5 _ Y* S2 R9 k( {rt random 360
4 P/ }" }1 @, H- ]
" i2 n2 n% K+ X. P7 M3 t' Gfd 1
+ i1 }' Z/ |8 H/ f$ }9 o7 H' f$ G- Z( S: }) ^( q# u5 k+ j3 M$ V, J% c
]
1 B* @& l8 ~: `. s" A/ C% c( D5 y% U$ M1 f2 c8 E, D! s
end: @% h* \$ C* ?$ T1 M6 f& M
! ~$ q5 h: t% l8 l6 I8 r+ H: t) qto do-trust . n4 }) f/ c R5 _. }. |7 U
set trust-ok False
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% `* n3 G' U4 v0 f2 y6 E) |! t: l# w
let max-trade-times 0) t, \# I+ u- @) I$ P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* \8 x- j# [" f& ]4 X/ T7 S8 _; ]let max-trade-money 0
5 m) D& ~" ~) o( y& b* u3 p z) hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] x' W/ S0 X6 f& m% D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% \) {8 p n( E! N7 T8 T
2 @8 k1 \" w( j1 E
! w& q, R" r. Zget-global-proportion
, ~+ {5 B: k& ` @ |; m. ]let trust-value9 Y1 [$ G+ p- ~/ [
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)
/ b M8 s0 c1 |! v3 nif(trust-value > trade-trust-value)
7 M& K, D! U# v; w/ f+ g; l. s[set trust-ok true]' x% j3 j/ M9 c# V! [/ N2 {9 r* k
end$ s7 r" n5 P8 S
3 V' p0 y% @2 o! q. r; h' V
to get-global-proportion. f0 w' S E, @5 U, e! `
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 a5 T# Q N% D- ^# F
[set global-proportion 0]$ }0 Z% m8 } v" Z, I# ?; S
[let i 0) O6 B2 ]( F% n+ o
let sum-money 0
3 f9 {; N F' T# Z4 @% Ewhile[ i < people]5 n& t: K5 e1 T
[. c# O$ c8 q5 p7 B
if( length (item i8 ?8 m* @* U. ]( \0 L
[trade-record-all] of customer) > 3 )" o: X% W, i* g
[
/ Y3 k# T) r5 D; v, gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))) u! T, V0 x8 l7 g
]
x, T# t2 {# q]
- Y% U0 A# l v, } R" [/ N7 d, Slet j 01 v" A" A3 _+ d* \6 g
let note 0$ T. G7 i& |4 M! {- I
while[ j < people]0 A. l( q+ {* Q# W
[
9 [/ r8 \: i8 G. @if( length (item i
- J# f$ F5 Z7 Q4 r[trade-record-all] of customer) > 3 )0 K. s5 R" I. h o0 r
[
( a6 i* C; T4 i) {- u2 c% c1 hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% X# K+ D h* ?; A4 f[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 l) I2 B* ?$ ^% q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 u z6 I- c2 x" c]
}( F# h7 |: c: X]3 O0 {5 e+ i1 f9 _
set global-proportion note/ P. n& g* o# {8 k" d
]2 J, N- G: V4 i9 i
end9 D* U7 O7 E# {% u* ~
# W" i! w2 G/ w% k" ?' \+ E
to do-trade
! U" G) Q: Q" t; X+ g' N$ Q" q$ l( j;;这个过程实际上是给双方作出评价的过程0 k- b& M! S# c8 r+ m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 b. M! K, x, C m2 Y' t# q/ nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 Y' R. ?" @7 _' s
set trade-record-current lput(timer) trade-record-current
4 k, L, m1 _5 g8 a0 \;;评价时间% F( Z* _- S* R) C9 W& l7 h
ask myself [1 K( A) k. w" ^, y3 X/ g. M/ l
update-local-reputation
# X" G; p+ Q' bset trade-record-current lput([local-reputation] of myself) trade-record-current% k. m: X$ z& ~ D6 G. K
]! {3 k# p4 ]2 J
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 W+ e( A I; E2 T; C* e' e
;;将此次交易的记录加入到trade-record-one中6 V% J. _6 N5 Q( Y3 c) B
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 G& S1 \( d9 D0 T) L% _# d& llet note (item 2 trade-record-current ) }, @. D/ F4 D0 Q! J
set trade-record-current
% v) l5 H; f* Q4 M- q& y5 \(replace-item 2 trade-record-current (item 3 trade-record-current))- ?5 O( J$ Q3 _9 B N0 m- v5 S
set trade-record-current2 j# y" H0 }. R9 r( D) @5 N% N
(replace-item 3 trade-record-current note)
7 s ~1 ?9 F4 l( D. H( I* l) b6 f5 `
7 a# h- q: x" c/ M! @ask customer [
+ g+ K, s: p4 l) ^$ eupdate-local-reputation# X# s# z- z6 v# H
set trade-record-current
! B# u* }6 y+ I( v0 J(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& | v8 Z; w' G# H- T$ M]
% _4 U7 [' g# q% a3 @7 ^! M, }3 t
! K- V. W" L, @
0 R9 k+ ^+ i# ]4 Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ s: V. u! T/ y
9 J$ V, C" p- A5 g, M! F0 O% z& Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; ~9 I+ w+ y( U6 h;;将此次交易的记录加入到customer的trade-record-all中$ }& U; w+ Z8 `" l) `# L
end
' i% K( g1 _1 Q9 \) n9 e
( {* l9 `; ?- _3 M/ K Bto update-local-reputation5 y) q: M9 W, B" a/ Q
set [trade-record-one-len] of myself length [trade-record-one] of myself3 B7 |9 R" `1 W+ q; c; V
/ |; Z* r" Y- S2 k A2 [" I8 ]8 [$ @* j
;;if [trade-record-one-len] of myself > 3 [) Q" p5 _% M. @( ~# H1 W# f. l, R
update-neighbor-total
9 r) J4 W c* P) V- J;;更新邻居节点的数目,在此进行
' @, y: {# F; o n2 jlet i 34 U' Z: g" G: @% F
let sum-time 0
8 P7 X% d2 q" |" U7 P9 W, hwhile[i < [trade-record-one-len] of myself]+ ~0 U6 u1 g$ E+ D5 s
[- R: h( g9 t( K$ p
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 ?% |1 u* P) i5 Z" R% X- }7 w, tset i
* z. e7 Y2 {% b) i: Q/ ]( @3 n( i + 1)2 j) y9 }, m$ W2 K; \
]/ e& l$ K0 a/ T
let j 32 J* V" v+ l! k% K4 Y3 t; r' p
let sum-money 0
* p6 J% o h8 ?; B; Zwhile[j < [trade-record-one-len] of myself]" L1 I/ {4 {" B% _% J
[% w+ ]* ?/ Z8 _6 J9 `6 d
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)/ z) ]" {+ j0 `: Q: W
set j
$ x3 s& s+ k# \( j + 1)
0 q$ D6 f+ I+ c! O3 B4 ?]
; W4 M: K3 }% |( n. L1 Alet k 3
+ c8 u2 Q* e5 c. M* U. g* S8 Mlet power 0( r" A0 q; J1 X
let local 0
6 F8 Z9 Y' K/ ~1 v" p9 Pwhile [k <[trade-record-one-len] of myself]' G4 _4 z( A2 Q+ ^$ a3 n
[
, j2 U W3 ~1 e: _9 ]( sset 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)
9 B6 P+ C, l* E. a# i6 Yset k (k + 1)
2 a: |/ S" E+ R: v% g/ e]
% R+ r" q! v, q( Cset [local-reputation] of myself (local)
$ P' S( U2 S: I6 ~ ~2 }end$ F |$ |7 L! y
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to update-neighbor-total
4 ?& F: Y* V4 d) C# p) [- x
' _/ e. W6 G; k. \0 Eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# R' n) V, ~* w3 o9 s; a. S( {0 h: C: v+ i+ t
) B9 f0 p R+ s# v6 {5 H0 {' k0 M
end
% }" ~; j; [! w2 Q% N9 R6 J
5 v0 R% _3 Q+ \* |" A+ Ito update-credibility-ijl
: S9 C2 D9 U% Z7 L8 c1 L( h: c4 T3 `' n# G4 [1 q1 r5 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。
0 r0 |! F, ]) o& t @let l 0* }/ r2 w* R1 S* D
while[ l < people ]
M5 } P$ K+ z, G1 L' U2 i& `;;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 x+ }: J# k3 g& ~
[4 z/ O: s' e2 U
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ q' h5 e! Q4 N# r6 |if (trade-record-one-j-l-len > 3)/ n* i% Z& H$ D9 z
[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
' U% Y" n7 c6 A" p( P3 K/ E: J. Ulet i 3
8 W- `+ O+ B% Q: Hlet sum-time 0) {) M9 a+ j4 r2 V
while[i < trade-record-one-len]* k1 E, E( F8 B' _7 @
[
9 k$ B, v2 R# p# R7 |1 Tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), o0 T7 J. L' t. j, k
set i
5 G- C* G# L0 u7 A* g4 S( y6 M( i + 1)
0 q0 J2 L. J2 R4 O' u P]5 h8 o2 h# l7 Y e. D
let credibility-i-j-l 0
% m$ O0 H' q6 I: C, J6 r;;i评价(j对jl的评价)4 O0 c# M" q9 v+ s- b- e8 l
let j 38 ]! Z& a( G h/ t* D" Z
let k 4: w! T5 u Q2 ^9 R8 A8 ~
while[j < trade-record-one-len]
, E+ h! }6 O d8 a: k0 g[
: C( G# q7 R$ |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8 K& ~! B; k- l# k- L F: K9 b$ m& h
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)
' u# q8 N+ w1 @9 A1 uset j
G; Z0 p; m; r& o J, ]( j + 1)! Y- G0 n9 |0 b6 {! I$ q2 t$ g
]
' O, M6 T6 j6 c! [1 k4 lset [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 ))
9 e3 K7 O& |. B. g$ R! {7 J6 T8 t0 h/ X0 N) X: a
m( U4 V2 f! c2 Xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% ?# w0 W: t Y;;及时更新i对l的评价质量的评价) i2 d6 ^: j5 y7 c
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; v5 ~# a K% L9 x0 T
set l (l + 1)
# U) _$ ^' D% w]
$ A2 | @- \/ O; ?# y/ V) Bend5 f/ c/ q5 P) a6 ?- F% E, M- b. A% ]
0 e* T3 }/ {& o4 a( h% h3 {
to update-credibility-list
/ o8 q3 j! E; C5 ~: G; Llet i 0
! _$ f. B4 _3 d- f1 I7 Uwhile[i < people]
# N. W Q( S: \' }! d: H% T[
, v7 P6 m0 p0 K3 Mlet j 0# h: x+ c0 }+ Q8 \( ~. Z
let note 0
$ P& R `4 F' M& `3 flet k 0" l. ^7 F+ d5 T
;;计作出过评价的邻居节点的数目7 x& f, v' V- ]# L5 V8 ]7 m& c$ l
while[j < people]- \% H7 U) ]7 ]# l8 n6 B! J
[6 J: h4 f! _$ V# u& V2 Y5 p x
if (item j( [credibility] of turtle (i + 1)) != -1)
- ~, u# j) d+ w1 w( k;;判断是否给本turtle的评价质量做出过评价的节点) |- d t( B5 X& f/ r' d6 u/ v! L
[set note (note + item j ([credibility]of turtle (i + 1)))
( d# O4 A) ]5 a/ z7 A* ^* ^: I;;*(exp (-(people - 2)))/(people - 2))]
- g' }7 {1 V* g9 rset k (k + 1)
( @# @* M3 |( z. x6 k6 j& k. Q]
& d7 l7 _4 Z- S$ s9 c% @6 g. pset j (j + 1)7 y; d& [$ o5 C5 q
]
" O: H& k/ ?3 |6 s# y" A6 iset note (note *(exp (- (1 / k)))/ k)( g. A* M& q7 L
set credibility-list (replace-item i credibility-list note)( ^; d2 W' r% X# @
set i (i + 1)
6 j4 J1 Q0 C" W% j2 v- D; @, X0 ~/ x]
4 n- u$ X/ C |+ w* x( wend
# ]" ]8 V! A) o7 @* W3 S8 U4 A, [
to update-global-reputation-list
7 Y- x; i4 W7 M" u. ]4 olet j 0
4 L# a9 B" ^3 U% hwhile[j < people]
7 A! q. P! T% z[
, W8 P$ e" l- V3 [) ^let new 0
. h7 l/ L. j3 `+ T; O;;暂存新的一个全局声誉
7 B' b* F; d* e$ x, P/ Mlet i 0
) {1 A: V% V+ Flet sum-money 0
8 \. T2 ^9 D$ r: x+ z) f. t! y) V7 G( xlet credibility-money 01 w0 ^) [1 \$ W
while [i < people]
4 u, A( b# M1 |& C5 m[& H% j1 G/ y' T
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 w% q5 z+ f/ W( C, V3 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- J" k- u+ A% ~- t+ T$ v
set i (i + 1)
, ~$ ~3 m" ?) B: {6 W]$ B/ @ p' w9 ?/ q
let k 0
! Y6 D. p5 v7 U0 f" N1 l9 Elet new1 03 S, h% @1 r% m: {& U4 ^/ e
while [k < people]! }2 Q! o/ c; T3 j
[
; ~% E' `) k0 H- r$ q X8 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)
6 K& ~: h' m! d. _$ E9 ]set k (k + 1) l1 n3 _* E) I) v* A0 c
]
- E0 v+ P9 M bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : D' N; z$ d: P! [4 a! B9 G8 a9 B, N
set global-reputation-list (replace-item j global-reputation-list new): k$ H8 Y; ?3 u) \4 H2 j1 U. F
set j (j + 1)
6 Q" V/ g9 S5 {! @* S$ U]6 b/ r- |6 O9 A8 h/ W, j
end
. |" x' V! y0 U1 N4 `
1 c: J: C6 F. d2 q5 K
% a) x* ?- }: l- v' q8 V! x1 ]8 [
to get-color; M& z$ B( E6 a" r; J7 w( t
+ H# N; r6 {9 t" z8 Xset color blue h' S! g" z; J; K8 v4 k* @
end
7 s; E0 S: V7 r& r# v: y( a
# g5 @) V7 r1 i8 b& ]! y4 R5 K" Nto poll-class
! A4 T) a8 S, `9 U5 C* G: Lend
O, i3 b6 ?/ n# I* V; S' I; k: {$ I" _
to setup-plot1
8 v; P k: o% i5 T7 W
, X9 C9 ~; F* m9 ?+ \, }" \, Lset-current-plot "Trends-of-Local-reputation"3 t* z6 D' ^. R9 L
' J+ e1 L) C1 m1 L* P( Bset-plot-x-range 0 xmax* o ]8 H- n0 h4 z9 Z- o
# o1 e8 d" X8 S1 C* bset-plot-y-range 0.0 ymax. P! Y8 R) ?6 Q; X* ^0 T7 d: B/ n
end, c' j: o# ]8 R" ?& ^
* B* B4 l6 {) E+ ?8 Y8 a6 X1 `to setup-plot2' n: ]6 q" n- K( P) m
% Y" G& E9 L6 j, _9 v. u J
set-current-plot "Trends-of-global-reputation"
- x0 i4 J' Q) h& S) d# l- J& I! Q/ U, K3 g
set-plot-x-range 0 xmax
9 e7 D7 J5 c8 W% ~) ?. D1 C: g( s- C) t7 ~! H
set-plot-y-range 0.0 ymax& [, B& d8 q9 M; l; `* C+ O3 T
end3 S" a& y7 D- g% y! H$ ]: ]- _. G
0 |6 ~: k" s i0 b9 W1 b/ v U
to setup-plot3
9 [; [3 h8 z; K% \
. H7 R$ h! h1 ^6 f/ ]" M% J3 ]set-current-plot "Trends-of-credibility"# q q/ b: D8 K
Y4 |2 J+ X8 y* `! O* Kset-plot-x-range 0 xmax# u$ f( p" Y9 G; p
& {! C3 e) _4 o2 l& R
set-plot-y-range 0.0 ymax
/ @0 d- x; R0 Z! U3 wend* w2 M( a6 |% s! G& o7 c
Z, ]( A& c. b, ]7 y& g" bto do-plots
+ U$ O' ]5 I# I8 i8 T' Iset-current-plot "Trends-of-Local-reputation"0 l& K( \5 Q9 f
set-current-plot-pen "Honest service"
4 x+ x' v5 F: I$ h/ B! ]( l/ ]! {end" K f* i2 }% `7 n$ ]+ a6 a! c X
- F8 T+ p0 \+ T; x2 |# y5 q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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