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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9 H6 c* j/ l& v% d
globals[0 t) _/ q. E- x2 d5 P3 k
xmax
/ J" w" d+ v- F5 gymax
5 {9 ] |" N0 \! Z9 ~7 E8 N5 f; ]global-reputation-list7 G& u1 {9 R0 l. w
6 N# n) @1 |/ C6 g+ e% [- t;;每一个turtle的全局声誉都存在此LIST中' J6 U, T7 {) x: {8 c5 m0 h! D
credibility-list
- V. G D" z+ e3 Y3 D% o5 i;;每一个turtle的评价可信度
% `! h8 [' O$ G O; H7 H5 vhonest-service& B) k: ?( b* x# t/ ]9 l
unhonest-service
& ` i9 w# ]' i% Roscillation
6 m8 \ k; @$ r- ^4 rrand-dynamic
: C5 f9 F/ a" e+ y1 P) R]
0 j* G0 E+ P" n: q7 F( _7 h
- H) D8 x9 f& n* _ O b( w% yturtles-own[3 Y) e Q" |5 h! O/ n
trade-record-all
% C% a6 j1 y% T2 i3 o;;a list of lists,由trade-record-one组成
, Y4 D* ]1 s/ h Rtrade-record-one! m+ ~2 F$ H: q8 u+ f7 R. N/ j: ?& ^
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 f x+ W3 T7 r% I& l! `8 b
6 e9 d" H* F/ 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]]% v1 Z/ h: b5 C
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]% S* p8 a) D% Q4 C0 W1 H! j
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list7 T: ~/ N5 O4 Y, n% r
neighbor-total" e0 G9 s7 @6 }2 k
;;记录该turtle的邻居节点的数目
8 X2 W/ d1 H, Z+ X4 W7 ^; X( atrade-time
/ N3 _6 d) C1 i6 V;;当前发生交易的turtle的交易时间& C- }- u4 t6 a l' [
appraise-give1 j! k% b4 q; s1 O) t
;;当前发生交易时给出的评价
+ T" R3 q) Y' Y. v5 g3 X3 dappraise-receive* @' w& o+ P: V& Q _6 w
;;当前发生交易时收到的评价
% e) B% Q$ r( Cappraise-time" U5 Z) k$ W* Q4 I, D4 Y- ?4 k
;;当前发生交易时的评价时间, k( D5 i2 p) L! ^) O6 G$ n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 T/ t) v ?) ~& Ytrade-times-total
. a" p- q. j1 L& k) |2 Z4 P6 v;;与当前turtle的交易总次数" t7 q& @" [2 T9 d! M
trade-money-total
( O/ Z% U5 V3 l& v3 _) j) _;;与当前turtle的交易总金额
4 ~8 B8 n4 u; `- rlocal-reputation: j% g( O% ^+ P4 X
global-reputation2 |/ }1 J; s5 x% R
credibility
) l6 x* E9 c3 M% g6 v;;评价可信度,每次交易后都需要更新
8 \2 L/ M+ z7 z( ]0 K7 icredibility-all. u1 o9 `: Y) K2 z! 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9 t6 G# t# `- f# y4 w6 ?4 P
1 C% N/ a: i |. l+ G& |;;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# b+ u, j9 t1 z; v) U' ^. d& H/ J2 x
credibility-one
/ Z( i" N4 A' R9 n2 h0 M+ {: 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( P, x7 `- A( u2 E0 B9 c
global-proportion
1 r+ h- {" i* \customer
- G2 A g5 s- B& e1 Q5 pcustomer-no9 p, t& U2 y& ?
trust-ok2 s. {8 X/ B5 I7 x$ I( x, w
trade-record-one-len;;trade-record-one的长度
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8 D8 {! F4 g; k& [0 t;;setup procedure. m& `3 z, ^: u# Y/ c* C6 Y1 K9 T ]
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to setup5 y' P5 ~3 T* S# q' o
) }# i" l2 Z; {# U: Xca, l4 C. K2 E5 q/ b$ B6 h3 T5 [* m* b3 D
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initialize-settings! e) f) B7 E# T5 z. X
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crt people [setup-turtles]
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reset-timer
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poll-class
$ g* _) v7 K9 {4 n4 `
0 N: k9 `5 r/ o/ d& b+ e5 isetup-plots
2 i I. \$ v C6 }
. x9 ~* d- |9 u( q1 Q! c U! kdo-plots+ L: D7 v1 H9 x' b
end. ~: y& Z; M; M; T$ k
& w5 D0 }0 y2 n6 m1 u* i
to initialize-settings
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set global-reputation-list []% ]3 R- a; o+ y# t( e7 P# @9 S
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set credibility-list n-values people [0.5]
2 O4 [( j1 G7 U) ?1 }: y& z! G, N4 u( g8 c
set honest-service 0. O& c/ [8 M9 M5 @" [& Q( ]" T4 C
3 \) O. W t9 N/ u# K4 U$ Sset unhonest-service 0
S, K& U9 @ N8 R2 u5 T8 K: J6 d8 o) Z6 D4 q
set oscillation 0, P8 d+ V2 Y5 g4 p, _
3 Y( ~$ `3 Y6 |- r, T* m9 }set rand-dynamic 0" W+ v; y U5 P/ a6 m
end5 C, M& y# c/ h3 e: A
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to setup-turtles 0 n0 e% D; Y" i/ r! y. ]
set shape "person"% K T2 |0 Z3 m) u8 l) X4 Z
setxy random-xcor random-ycor
) E8 b0 S) d, `# _set trade-record-one []5 h" g2 k& n7 \+ p7 {
# ^8 p. L% o! B3 J9 ~. s) P% @% gset trade-record-all n-values people [(list (? + 1) 0 0)] & r7 x: k7 M/ J' b. v
$ e* I& q6 P5 oset trade-record-current []
* W# F6 l- W8 X z, ?. T2 ^9 bset credibility-receive []
. C% d/ _) q$ ]: A* \set local-reputation 0.5) Z, u- P9 u' d. {
set neighbor-total 0
& v! Q8 o1 ]% Oset trade-times-total 09 P2 @% Q6 h- n7 t
set trade-money-total 0* y( P; ?( E( [" [* q
set customer nobody
% V8 ]' ^2 q/ K7 D/ U9 xset credibility-all n-values people [creat-credibility]" P! e' h2 t7 [1 V! N G
set credibility n-values people [-1]
, C: f8 n& i2 k4 {get-color' Q; v+ P- ~2 ~% O$ Z
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end
8 ^0 v* J. i* X% \7 i( e
7 c: l( T2 t+ r& ~: Ito-report creat-credibility' g# {7 H( A0 Q8 S% Q
report n-values people [0.5]
1 Z) p" t1 `5 u/ ]+ eend' \3 y* H" T% u" V
' E' U; [+ \! e+ z' |, O& oto setup-plots; p6 H6 u8 e% B Z7 G3 E5 d. G
# ]6 }" V x: X6 Z3 rset xmax 30( u# Q. Z% Z& f
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set ymax 1.0
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clear-all-plots
/ ?% c. d& N' d- E
# I1 W( Y' F6 c u( l, m g0 fsetup-plot1 z& M/ w2 @) W8 n& y) K
2 i, a% }7 U& |4 K% [" y; F: fsetup-plot2
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setup-plot3$ m0 f, Y! _+ q' U# h
end+ s& R) E8 ^2 @
+ u( l+ m$ |, z% w: d% Q4 Q9 e4 ^
;;run time procedures/ W3 s" d+ r( |8 Y$ _" @
2 [+ D( l4 ?' O* X+ d/ q2 [
to go/ \! E! L2 l/ V1 z _
5 P0 M" L1 p. n4 Y$ Dask turtles [do-business]
, d# E, S' E% g3 Cend( C# a' w6 C4 n/ o
- h; O" n/ f1 r( vto do-business
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6 l2 X- y& o8 M+ o
# ^: K' W7 E! E& o& Zrt random 360
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/ j$ w, n5 Q& ~4 k6 j( y% Q* u& ~fd 1$ @( G& J) {7 D2 u
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ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here; M- | V* R2 b7 U1 ]% T
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;; set [customer] of customer myself
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0 l! f; _$ t6 _, Fset [trade-record-one] of self item (([who] of customer) - 1)3 Q) Z3 r# g# |5 ^5 T
[trade-record-all]of self# F+ s/ B& t0 b* q( o! b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, M8 x1 @8 E) y) M
+ ~4 a+ g; F, D
set [trade-record-one] of customer item (([who] of self) - 1)
+ O+ Q7 d7 \# }) w1 ?: w[trade-record-all]of customer
3 V V" c# X1 ^1 u! l) s
+ J t- J8 ]6 O# x5 ]! B) O5 hset [trade-record-one-len] of self length [trade-record-one] of self
3 e, X, _1 a/ M& p
) }0 _, C$ I, x8 b4 M6 G, [. [set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]( \" a3 \8 i' v. r$ Y/ P( B
;;先求i对j的信任度
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! E3 g; \7 e. k- W; H, e+ Yif ([trust-ok] of self)$ n1 p& d ^* K; a ~% K% U+ u
;;根据i对j的信任度来决定是否与j进行交易[; b- n- L8 H" ?, m( h1 N
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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. G# I& x0 P, H0 ^$ o# K
do-trade
) m! i* ~ [% }1 D# H i
/ w# Q; B, Y5 Q( k# ^update-credibility-ijl) ^* h/ t" J2 e) G: i
6 B5 ~0 z0 y1 S0 vupdate-credibility-list( Q' w9 [+ o% w3 N" p
3 U/ `# x3 D5 P; @- X2 q3 R& C% m) h5 [. K! b' c7 |; ?
update-global-reputation-list% X, M+ Q" l( N# d% l
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poll-class0 N+ n, ~! _$ _: d# g1 W) b$ v) \" Q
1 X B& L4 k' X5 d: s3 Q! Vget-color
' T1 X; y0 e5 C
) y: D! l, F: d# S$ l]]
0 w, I- `* Q; J# G5 [4 |" X1 k- E8 s, @7 q! r: ~6 i
;;如果所得的信任度满足条件,则进行交易
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[
2 x& f# w* f; |
/ O$ B; u- b3 W: y* ort random 360! S, a B% Z' |
$ g( C( ^" U3 q5 |0 R( gfd 1
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]
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end. W C9 S/ o6 [3 P% }4 |) \; o
2 l, z0 m# W" A# [# J% o
to do-trust
4 t$ P- s5 K0 ~set trust-ok False, U- w1 [. f9 i" @- P+ Y
+ P3 q+ v- q) }% a; L& X. A" a R! y* R1 j' x
let max-trade-times 0
" f8 `5 f1 W2 b- F- {1 mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 U+ U. W: H! p0 T; ]7 [* t0 C3 dlet max-trade-money 0; U6 R# I6 S4 G) O: c8 Y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ i4 @% |' o2 C. d4 J8 `let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- l) Y9 p9 k3 Y# T1 g
! \1 H/ k& V: y. B4 j9 O( U( ~/ i: ~: c& R; `, E8 M: e/ C
get-global-proportion
1 b9 \/ a8 T( f' G: Blet trust-value
2 x, ?, [9 ]; R6 r# clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 S- @+ k: a( i& k8 _% {if(trust-value > trade-trust-value)
8 Y$ {! W( t' B; j( A[set trust-ok true] z# P7 k' J: e) D% _$ p# R
end2 i% ^1 N4 F2 P% J. n
) |- n" E M& x, C( ^" l* v
to get-global-proportion6 v4 D, v1 k J& f" V! {# t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( I' I) @, `5 J1 K6 c
[set global-proportion 0]
, w, n( {* T( P+ k2 M[let i 03 Q' X3 k1 R* T; U' D) \+ x. C# j
let sum-money 0# T# W( t( |- Z2 f. `
while[ i < people]
9 B. E R. j, U2 S. _0 i[& o/ w$ Y7 I+ J+ X8 Q
if( length (item i1 k6 _9 e+ b; ?% k. f
[trade-record-all] of customer) > 3 )+ e; T; j* S; ?
[
, y6 b9 K) A) a) Y2 \ w9 j0 G6 vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 s/ H! c9 K5 u! t
]3 M t& U a& ], b3 T0 G
]( o' G- ~/ Z% }/ s c
let j 0
8 q& d7 |) U9 V3 O# Llet note 04 h* a% q. q/ |* V
while[ j < people]
2 W' u1 d, l: q+ `" n4 s) S[
7 X6 ~4 z/ G8 D" O/ x' cif( length (item i
4 f- a( g- x3 V0 Q2 Q5 v[trade-record-all] of customer) > 3 )6 y( f$ r3 Q% R* S2 w. {6 U% K
[
0 \* n1 y& E& D% G! Fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* ?% x, Z& c3 g8 P! A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
d8 J1 k4 R+ Q, O7 ?$ Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( I" |3 H* u, [/ r$ L] c! n$ M+ ~5 t5 o' F4 _5 A+ N
]
1 N0 b. `- H5 c2 r3 T' vset global-proportion note
! Q; U8 H. y+ v0 V. U! z]/ ?2 n" I, A& x8 u P! @
end
7 L0 e( U# L& J. x4 ^4 i% w7 T; e; }# I/ |6 {
to do-trade
6 A7 |2 K5 a& ^, i;;这个过程实际上是给双方作出评价的过程5 v6 f! m( o4 _( [! }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 u/ I$ k [6 U& G! r; Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ E; g- V D' R7 G# w
set trade-record-current lput(timer) trade-record-current
7 _. T$ j1 H: H- V: A;;评价时间: o2 q# q7 N) l- j3 Z
ask myself [6 P1 _0 W. _, h$ \ A
update-local-reputation9 t1 B9 m$ R% y+ g/ I( H
set trade-record-current lput([local-reputation] of myself) trade-record-current
* ?! U' M! d9 ]8 @* \. c2 J]2 I7 X! P/ M' v) B/ G0 r) Y' Z; e5 Q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ `9 T( l4 F% b4 n$ a+ [
;;将此次交易的记录加入到trade-record-one中
6 f; X3 ~/ p- Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* q( K5 s6 J% w. @) n$ y2 P8 y
let note (item 2 trade-record-current )
6 ?/ t' d3 E3 S' [( X" Cset trade-record-current+ T0 Q. S) u' p8 d
(replace-item 2 trade-record-current (item 3 trade-record-current))
" i K7 ? N* `% C+ xset trade-record-current
/ r6 j7 Q3 U, M' U(replace-item 3 trade-record-current note)9 w) ~0 w4 p1 \5 \& c
) A* l, r( ?9 J8 W& C- f
6 y; ?4 r1 g& Task customer [- p: _' g3 D. F6 T! e9 A: C
update-local-reputation7 c2 T! N" T0 t: P! G
set trade-record-current6 U+ {9 }! M {2 v/ l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( c3 v& m* u& S/ p) z4 A& `]
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, |$ `6 J( f9 y7 r. R6 oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 r4 z& \% e5 U$ {! p/ b' L# n' z; Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 M: W- q* N; |+ L;;将此次交易的记录加入到customer的trade-record-all中
* ] C( v& ~; F Z! `end
' {% X3 F' W8 s% @! D6 T9 {; S9 Z) e5 T2 g9 H! n1 R
to update-local-reputation
! y2 d8 g+ `( o" Sset [trade-record-one-len] of myself length [trade-record-one] of myself1 g+ x2 d- G% I5 R
" Z2 K" {- R$ q( v- \( n2 q
) Q$ Z/ }+ _1 G% s;;if [trade-record-one-len] of myself > 3
! H/ k1 J( N v: a1 \update-neighbor-total
2 W- }1 ^% X8 ~; t# a/ M;;更新邻居节点的数目,在此进行+ p8 h6 s$ m* X% f. C9 F0 \4 H
let i 3 m" Q. _% B1 c! D' x
let sum-time 08 t. _. e7 L5 |5 u' [. w- F1 f5 q
while[i < [trade-record-one-len] of myself]( L: s0 T. A# {8 S( ~
[
; R- W! {! {- yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& \; B+ x3 k" h5 U+ ?1 _set i# F- j* E$ r8 Q, G* v; F
( i + 1)1 @5 P3 x, {, D3 c' C, l3 ^
]
, W) d& k ?7 Q. r" }let j 33 I/ y) F8 p F
let sum-money 0! z; D% c, E- x* ~3 H8 p& _
while[j < [trade-record-one-len] of myself]
5 |3 t% R. Z# \& r5 b. ], x1 h* C[1 P0 t5 k# w' ]+ ~2 L: b. z
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)
) L# V3 i3 v& J% z* L4 ^$ } k' Gset j8 W8 Y& b8 ^7 {. o* x5 q z% j
( j + 1)/ e# r) V: N2 K1 j$ }* z+ I' a
]
0 l# C; p0 p7 [let k 3
& b" f& z6 i T0 ?9 i8 `let power 0" z0 G$ Z0 g# @, M3 `
let local 0
M" ~7 f5 e1 a' V# q8 f6 pwhile [k <[trade-record-one-len] of myself]
2 g# {. M1 d6 W5 g C+ G8 q, ?[
2 m0 ~) q! Y2 z5 ^1 I9 Rset 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)
" i# J: ?$ b7 g3 M' H, Pset k (k + 1)
3 v7 I5 {% |+ R6 E]4 L0 _/ a) r6 e0 d6 i% p) a- K" l
set [local-reputation] of myself (local)' {/ R0 S6 O \+ L
end
0 a- f* |- B( m1 L2 W2 N1 a
3 G U1 v( e! V a+ Pto update-neighbor-total
5 B- \! Z3 @- \0 A/ u$ `* s; _# j' s. j
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] A X3 d% M5 F" u
" x! d( e3 \5 L
" b0 V* U% ^8 I" I: y8 {6 Pend
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# u) U$ J/ s$ f, |to update-credibility-ijl
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" @# k; w' ?9 N$ q$ V& k;;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/ G6 P! W) [0 l; M; i2 L* g$ L
let l 01 j, _ f) z0 @ T6 Z. D0 q, b
while[ l < people ]# M! N1 T" w: b2 Z6 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# _, L B4 r, j. U
[
, A$ o6 ?6 ^% f2 I, d- Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 {8 @4 L) P$ v: y4 ^+ r
if (trade-record-one-j-l-len > 3)# z8 H1 U4 u, e* T; D9 i
[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-one5 n, X! T3 A( i% R
let i 3
( [+ _* I# @6 _( |# p/ v& [' j- wlet sum-time 0. @" `; _# Y8 j+ A- {
while[i < trade-record-one-len]8 D5 I" [( Q8 L" ?) g& d
[7 _9 B. n* l& ~, s" Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, T# E6 q5 x% k) K* eset i
: u$ |* K( K/ R$ Z0 u& x9 l7 {( i + 1)
% u: n" M ]. e$ x; F L) E( \) w]
( l; x# R$ p# f# a Glet credibility-i-j-l 00 p9 ~5 s" e9 V) ?9 l3 _( |- I
;;i评价(j对jl的评价)5 ^$ q8 E- T: s' K7 X/ c
let j 32 t5 @. G- a8 E' n, _* i
let k 4
: R- f) h" W$ vwhile[j < trade-record-one-len]' E+ e! D1 Y, U8 i
[9 U1 M- ?! ?: H4 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
% F& ~0 Q- a/ p7 I/ a# R4 U: s0 }+ wset 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)
& o! @5 b7 `% Bset j
2 W! Y% i2 \0 u2 P) e& D( j + 1)% R* s7 C. q: \8 p1 W5 w
]
8 w( G( J& a/ aset [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 ))
, P( o5 ~$ ^% u( v$ h( S, h
5 m0 K5 ~! X4 h! i5 l% E4 l$ ?2 ~- a" {2 U2 y" J6 h. e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 @* C, [9 U- _( D) P* A* K; X
;;及时更新i对l的评价质量的评价
3 n+ U4 J5 ?+ w. }6 eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
x4 L" E: y2 J- a7 \3 jset l (l + 1)
' O# G& ^) N% U* b]
0 W3 f2 J9 S; q* j7 gend4 R; v w$ L. |" P
0 S" K( {& \$ O" u$ bto update-credibility-list
( g0 B2 @/ g# {$ N& P& G/ O" u' Glet i 0
% P C( l" v% Q0 Pwhile[i < people]
# }; G% `8 |) y! M, c( L[
- s& `% l2 L( u8 ]' `0 Nlet j 0. l" i4 }6 ~+ ^& {3 A8 \+ |
let note 0
( u5 ^ O6 P) alet k 0; B" x& @; O( o t( }& E# ~- [2 n# _
;;计作出过评价的邻居节点的数目+ W5 j$ [; J9 k) x* f. Y i
while[j < people]1 H! n" H/ U' q" }. O9 Q
[8 L2 M% I( _5 i% s% I
if (item j( [credibility] of turtle (i + 1)) != -1)- C7 d* d$ R% g% Y+ R
;;判断是否给本turtle的评价质量做出过评价的节点
/ H" }( s: @( R9 K# g1 k9 S[set note (note + item j ([credibility]of turtle (i + 1))): U/ T: B+ Q8 e# Z
;;*(exp (-(people - 2)))/(people - 2))]
& P5 K: Z8 ~5 M( S$ G4 pset k (k + 1)
. D+ a$ k( m) L0 Y0 z& F]% h' S# E1 b( j; g' T
set j (j + 1)) l) I$ U, R* U3 d% v
]$ G3 X; s) E1 p. @4 s* ?
set note (note *(exp (- (1 / k)))/ k)
6 m' n/ |( w3 a4 c3 ~+ lset credibility-list (replace-item i credibility-list note)( \1 |; B. {; y$ D* z" S/ o
set i (i + 1)+ r3 I, Q; ~5 R1 I, m4 g
], J+ F) V; Q, R
end
- O" H% N. m8 w3 K. j2 z3 ^
/ P, ~4 e( E& P. M; f3 Ito update-global-reputation-list
9 j6 {7 J; |; k; \let j 0 @8 W1 d3 _# c. D. s% q- T+ z0 P& _6 \
while[j < people]' j5 f8 P- ~2 h3 ^6 z
[
) ]# x% p8 w+ B$ W9 X& Qlet new 0
) T, e. R# e* i" }) A% j;;暂存新的一个全局声誉4 {9 E: V1 n, [2 b. }2 m
let i 01 v2 `0 a" r6 [4 [7 p
let sum-money 0
- U8 y0 ~6 g2 wlet credibility-money 0
0 F* Y3 G" H; ?% ]while [i < people]
r8 |4 q$ V& }. ^, _! b7 q3 U[
. s" Z& ?* T3 w, K; Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- R0 J. J& v0 D% ~& cset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. U; f0 x! ^7 w& x3 `( Lset i (i + 1), L) ]; M7 h) z% O* E
]
+ ?1 _- ]/ I$ a: H! U. v9 q+ hlet k 0" {) J% ^7 q% n5 ?7 U3 C$ L
let new1 0% x/ w& W. O' |( h+ a: N
while [k < people]8 S4 h5 S7 r/ @$ h" X. g
[
1 ^" q* \- I% V- t. c% 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)
F+ z# g {- ^$ r& p1 o1 V: Wset k (k + 1)
; S$ |1 l0 B$ f5 r7 v, N]
5 t4 {2 n) u. P1 n4 _3 ]set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 C, u, v1 O$ ^' k) H. L
set global-reputation-list (replace-item j global-reputation-list new)* r+ M. ]1 ^. {( D8 k$ v5 Y
set j (j + 1)
. |6 L9 C" i& k7 v5 y7 ~/ T1 Q]
" m" k; j6 H$ z2 Pend" i4 x+ L; J4 l! K
$ |$ B. `. u/ R* G6 k Y4 E! o1 S ]4 a& `6 ]- S- s0 c4 {- Q$ C
" L' W! L, o" o8 x6 eto get-color0 x4 H5 _+ t- ? Y* o& F! V
+ z! m! y% o _8 r: F3 c) Rset color blue/ Z) C7 P% i6 n9 G" {
end
4 z o% k+ K7 e9 x
$ Y1 d. [+ U+ fto poll-class
5 S+ c7 i1 o0 ~9 Q& tend
- p; E; z$ C" [* E& h) v" J5 d% ]/ h( m& g0 r% t: X6 d1 T
to setup-plot1
# n+ U7 x. |( r" L$ _
o' K7 a* o; l' Kset-current-plot "Trends-of-Local-reputation"
, G. E9 Z z, l6 ] g4 Q5 d. U6 w6 ^) r3 [- f" j! L5 |! J/ g
set-plot-x-range 0 xmax
$ \% w# f% n2 R$ Y0 E, V8 u! c/ n' R* T% K2 P, z% \
set-plot-y-range 0.0 ymax. {& D. s* \ ?
end
8 D: i! G9 n& J6 d& l: s) ?0 d, S( W2 k5 }% m. J+ J K
to setup-plot2
) R( X3 j8 H0 k0 {, O9 k
4 _+ C% _9 i8 jset-current-plot "Trends-of-global-reputation"1 u4 Q0 {: L; @5 f4 c9 A% X
* ^6 z% l7 ^/ f; R: A$ ^( H
set-plot-x-range 0 xmax
5 {5 _4 \% J; K" [
( ?/ D3 g H1 t. Lset-plot-y-range 0.0 ymax4 z" |3 d6 q! N' t
end2 k. j. x9 M- K+ G* Y2 G
1 o! I+ e; Y v; V
to setup-plot3
! p9 P* M" D$ \6 v2 i& T) }! a M" `1 O; O, V
set-current-plot "Trends-of-credibility"0 k' a# O2 `5 J7 v9 H5 k
1 y; J; L$ d5 S! S3 T
set-plot-x-range 0 xmax
- _: F X4 F" d+ E# Q# w6 O# n: L8 H
set-plot-y-range 0.0 ymax7 k6 I- ~4 N, B3 h, t' ?" Y
end: S/ d. [) z* i2 n$ p
4 k) L! c7 z# M: F# ^5 o1 kto do-plots& f3 f! b2 g3 v) F
set-current-plot "Trends-of-Local-reputation"
2 @7 p: T1 p8 c+ T }set-current-plot-pen "Honest service"
8 t; n( S: p0 X. P: Kend
- u4 p8 K) X; L, B
8 x0 j* {5 D$ L$ R% y7 ~0 L7 P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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