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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: x0 Q" @. l) u% \
globals[4 c' a5 x( E& c$ ~ h, w$ j4 N
xmax
+ n1 a6 _/ c+ E$ yymax
, ^; P; D7 O3 L$ h" V6 l6 h7 g7 Nglobal-reputation-list
c M* Y. g! b7 i# L
v9 z! [* E0 [' {2 f* l% ^;;每一个turtle的全局声誉都存在此LIST中& {( [( f A7 c( j) p
credibility-list( {; @6 [; b$ A& R' s( c F
;;每一个turtle的评价可信度
, E# d4 y+ c$ w$ K1 {honest-service
* `+ p! P% k) h9 D+ p2 }; nunhonest-service$ a$ O/ z0 X6 P. \& }+ B
oscillation
3 t# t6 `6 g& d/ x1 O9 I4 Erand-dynamic+ d, g3 ?$ W4 S
]
, m& R% Q3 Z$ \6 L- M' t
* u5 z$ u: t. L2 x5 y# H6 r* P" A- V8 `turtles-own[. k& |% o( p2 H: \
trade-record-all; E2 C0 t, ^$ C- G1 h/ u4 t
;;a list of lists,由trade-record-one组成1 e0 w" \! b% @- e, V% g
trade-record-one
7 W* @& d( N+ e. h. k;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录6 D/ h6 ^0 E, i. l+ ~
: ?( p* |. [* z4 U: [& `! S: z* i;;[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]]) o* H; u9 x+ N/ Z* p) o+ @2 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], ^- p$ f- n# @' P8 \& d' {
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
M1 }0 S& y$ dneighbor-total
; @# l$ d# ~, r e4 m;;记录该turtle的邻居节点的数目
6 g5 o5 r ~0 B7 W0 y% Gtrade-time
4 ~. \& U4 c6 L3 x! d4 J8 b;;当前发生交易的turtle的交易时间
+ j9 }3 S7 T# q) Eappraise-give* a, M+ a' C6 z* a1 q- G
;;当前发生交易时给出的评价! m) `5 o7 W+ w E4 W# y
appraise-receive
0 v$ @6 c9 s, i) G" F/ b Q;;当前发生交易时收到的评价! @% M% f' c* y
appraise-time
4 U& l! G5 [ }7 e;;当前发生交易时的评价时间
8 K6 n: p* A3 N3 s! T0 y8 clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉1 A$ x: V* w7 x
trade-times-total
% n1 m) n' g! e$ U9 G8 w% ~9 J. m;;与当前turtle的交易总次数4 C, l3 R5 i+ k9 c9 ]
trade-money-total
' Y6 {. Q8 d1 Z; k3 c: P;;与当前turtle的交易总金额
5 y* x$ p: e! i) C$ Rlocal-reputation/ b" ` j* ]% O) C# X5 K% c
global-reputation
/ \6 U( l2 O' l4 V+ [2 t6 u Ycredibility0 l) ?$ K& a9 W4 l
;;评价可信度,每次交易后都需要更新/ Q: `* a( L# i; H$ \+ l2 x
credibility-all9 t* y# H; Y& w7 y7 G
;;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
) [$ F0 g$ w$ ]: n$ l _" w& h# ~6 i7 J6 J' i6 l5 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0.56 |+ x. o. H! [% ?. I/ D
credibility-one
" s$ O0 g: |5 M. F! R: T1 P) V. G;;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
8 w- B' x1 R% x) a/ c" a! X# Bglobal-proportion
0 Z" G' j) y& M0 Y) q9 v) j- A: E5 ocustomer
$ B5 x1 q5 b+ Gcustomer-no6 w* k9 ` w1 I: t$ c) g/ d1 i
trust-ok4 }; R% ~0 B) I
trade-record-one-len;;trade-record-one的长度
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4 V, Z: n- X6 H) @2 [+ s
2 L5 _ {4 d4 Y7 O8 C; F% B;;setup procedure
2 x0 x: m# I, c2 x7 x4 `
/ [3 X! H, X. @* U& f9 zto setup
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ca! X+ g) g q' J
! o/ v0 }6 l8 X. k" J/ C% @) Binitialize-settings
* i* I0 }! U+ ^, @3 ^8 u* ]6 @
crt people [setup-turtles]
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1 y \5 H/ m. ]' Nreset-timer
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( V+ l: }: w; lpoll-class! V* {8 W- s: A6 R0 c3 w0 i/ f
# t+ W/ [, C+ ~3 e7 ?' C8 osetup-plots' u' F6 d7 K; C/ g6 L
x) a% y% w* R- Jdo-plots/ _( Q7 B1 d4 t0 ?+ b8 ?, t
end
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to initialize-settings
: o' h9 T( `; G! \
4 T% E9 A+ |& m4 wset global-reputation-list []* `% X9 G/ c/ t# \. F
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set credibility-list n-values people [0.5]
+ w7 h$ `0 b) ?" x
% w/ U# X8 o% ]0 C$ Rset honest-service 0
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y. R1 W7 T: J' g5 V" L# B6 ^set unhonest-service 01 F* o5 x3 [5 L
+ \2 ~ B! u; @- }
set oscillation 0 |4 }4 c+ o! O' T
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set rand-dynamic 07 A' V" p$ `" P9 q$ D2 u- V
end+ U& i) k7 }& s/ F8 O
% R. n; @3 Z1 b. N; vto setup-turtles
( T& H v( @/ H' O; f8 Wset shape "person"9 z$ ^+ ^- I `1 r: Y
setxy random-xcor random-ycor1 F E( u$ [2 V- Z' g7 F
set trade-record-one []4 Z1 L; T8 C: J; C" x
5 [9 o9 s' v3 [" u* V8 ^
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 _, u! N: f" l/ L7 }& a
" {; q; L8 s/ W! f9 Cset trade-record-current []
' j$ o$ Q/ {- g- M& Bset credibility-receive []8 u& k- G; f, ~2 D
set local-reputation 0.59 g& ?0 D8 V& f% J7 E7 m" P
set neighbor-total 0
6 u8 `- |* g6 E. J2 i: |set trade-times-total 0
. W- ^ J% g% X7 B0 n2 c0 eset trade-money-total 0
* Y; c1 c' U; ~6 u& k" sset customer nobody1 u9 J* X2 M- y8 Z r- i x
set credibility-all n-values people [creat-credibility]1 R/ q+ z- w$ O) r; P w
set credibility n-values people [-1]
1 ^- D0 \ w W5 {get-color
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9 X' p- U) T3 @2 [4 Xend
% ~( `1 O# T, x* q5 x8 D! ]* a0 |9 P+ e
to-report creat-credibility" C' G+ }! c: `0 C
report n-values people [0.5]1 h* x3 n0 J; Z# i: p" E
end$ I) @+ h/ j1 d3 t( H$ W
: L5 j$ Q4 I. V0 q7 Oto setup-plots
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2 D# o h" W0 C7 I0 c! Q5 [( E2 N% tset xmax 30- ?, J( g& i+ t7 M$ Z8 m: V; l# J
6 g8 u$ U8 a8 E5 R" qset ymax 1.09 i- P- ]+ i( J
0 z$ Q, ^ d/ i2 m( n, X! `
clear-all-plots
|( }5 J, b( t) s( b
1 _4 \8 p" a/ g9 Isetup-plot1$ H6 ?) C3 ^8 j8 G
; G- y2 s m. b" Fsetup-plot2
- ^6 R" ~; e1 G& T1 }* W) n
- S* _: i* U+ X! Q; ^$ e! Dsetup-plot38 [, ?4 U& p7 K0 w1 m. P$ G
end- ~( P$ r% i3 d: _, o. r" Y6 ~
) j ?4 W& f o' ~( l) C1 w;;run time procedures
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to go. d9 a$ j. R& m/ G+ i/ J; {
8 B$ O+ z' _0 w& {; [ask turtles [do-business]. W$ `9 Z: O2 D1 \# w6 T. r) D) v
end
+ B X0 P* t4 o
; N$ A4 O: A3 h# L% t2 R bto do-business 9 e: i8 H# V7 `, d, T
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7 D3 U- _5 R6 Z0 ^% P8 F; ^
rt random 3600 W% E" L" a( \: B. r
# c1 j* C0 ]3 l5 f/ r' j2 t+ D5 ]fd 1# p7 j, ]' M5 y; z# R
# i* ?: n" o& M* w
ifelse(other turtles-here != nobody)[& S j: w5 K* P, x
$ c+ u& U. P4 P3 {$ @5 R
set customer one-of other turtles-here7 j( Q( Z' K8 s& ], w' v8 L
) Y1 T- Y3 }) u( _ B
;; set [customer] of customer myself7 d B* s6 X p& K. h
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set [trade-record-one] of self item (([who] of customer) - 1)
; W" n, O8 s4 u5 W, Q0 {1 ?[trade-record-all]of self
% i1 I5 K8 S; S$ b6 c, K% W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
8 e2 g [' U0 a1 s- A+ W[trade-record-all]of customer3 _- Z( T8 M- A4 M- l m8 g
4 X/ p, A: k0 t* [/ l, oset [trade-record-one-len] of self length [trade-record-one] of self& n1 B2 `( p9 l* `
9 [. d' c! @$ a* X$ W/ @set trade-record-current( list (timer) (random money-upper-limit))
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, C8 z5 E( @- I* k* rask self [do-trust]/ R4 b; ^7 H! ?2 M& D$ ^
;;先求i对j的信任度; {- ?+ M% p0 \8 K) Q
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if ([trust-ok] of self)# E9 ]7 K7 t5 g. o! `" @' e( j
;;根据i对j的信任度来决定是否与j进行交易[7 ^! `: q' T/ Y* ^# h
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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0 z5 p; H# y3 f# ^7 K[
' `( E' }+ T" A" ?& J* z7 B' b8 ^/ S- A* a
do-trade
& P" B6 }3 [% v- Q( ]
7 |3 H' E8 }: l9 M6 a0 Yupdate-credibility-ijl
- M3 F. X! t6 Q' V* N9 ~
% [, U8 H# p$ P# y3 [" F0 Rupdate-credibility-list
) \( z. u K2 o) Q# t% L! r _4 R g: x% b( M1 i
# w3 d! q( y! m. ^4 A i4 wupdate-global-reputation-list
" V; h' A" Q! P& j% I+ x
& p: O- H+ z+ G5 G9 ~poll-class
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get-color& n7 B6 q C# ~& ~5 u
+ [( h) O* f" F]]
5 G" \* |9 N9 q. @5 z, u* [6 k N' F
;;如果所得的信任度满足条件,则进行交易
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[
% {3 ~+ r% x7 P) [1 u, y; p: Z' v% N0 o; E3 [
rt random 360
- T. t5 L& ~$ G! r: {% t* i n9 j2 D6 Y- Z5 @% G9 N6 S" T8 r
fd 1
6 A! L/ j, f u: n* `* b S" X2 i- u1 t7 |. v r/ w
]" j' Q' w Z/ n' j' @3 V* @- b
/ b6 o+ E( \ |4 G
end
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to do-trust
$ Z7 p( M8 Y1 Y2 G8 L+ vset trust-ok False) J/ ^' f0 i( c
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. M/ }+ U' ~4 b4 |let max-trade-times 08 u) O4 f- }/ @, [3 ] p# |$ j6 c
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& F7 V9 i( ?) A# \' o4 \, b
let max-trade-money 0; `! _' \6 C& F6 ?% e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], j) B7 w4 `" |( L% O5 [
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# N& e2 h: {8 N* a) h- K
% H' v1 x7 F& \! J, u' p5 d2 M/ n- G
% o& c$ c2 [* V/ |9 {% Wget-global-proportion
$ C$ ~$ S6 K5 Rlet trust-value
0 D* E2 i' ^$ ^5 i4 D' tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
" J1 y7 L& E0 Fif(trust-value > trade-trust-value)7 l" o8 G" z3 x1 ?- k! e
[set trust-ok true]
6 ^% z) a2 L+ B+ h$ x: jend* j! Q5 z5 L* r3 C l, ?2 g4 L
% d* s a* a% v2 W
to get-global-proportion
5 t U0 V P/ A0 Aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 B( Z; ^8 {% p8 T6 H, b[set global-proportion 0]
( c6 q' p4 y& l2 P; k! x _$ a% w[let i 0; `; Y% e+ f8 f" I, l4 f9 [9 T; L5 b
let sum-money 0
2 j5 r1 T+ T+ U" w8 cwhile[ i < people]
! g) j) L1 O) b2 N7 d[0 D' \9 U$ c. o7 u/ r
if( length (item i
; P' M/ S& M* V- k[trade-record-all] of customer) > 3 )
% ?; j$ y. d7 \$ q" f- d[
; c: w6 b: L- z" E$ f) Z5 Vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; q& H6 S n' N- _]5 \% x- D) S) P4 a' o( ^$ D' }
]; f5 O; T! \1 e+ x- \, H+ L
let j 01 R( h3 c7 l" J9 Q A
let note 0
! G, a' m9 V3 B" }, Awhile[ j < people]
+ z2 X! b& R" ]& J5 c[8 x/ s1 `" r- d4 c
if( length (item i
3 N2 r' u, v6 u! H[trade-record-all] of customer) > 3 )7 Z- f( c' ?7 |6 s
[8 W- v# C6 g; M2 b" P" u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 d* [8 B! D4 L: S& v9 \, t2 b: P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, U' r7 |8 A( \$ p! ?0 `- R! a( ]+ K0 g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 ], D: v+ e! B" @2 D
]
9 s' `7 D, L* s, z]5 a2 n: z' R$ b+ \6 K
set global-proportion note' v7 i# E+ ^; ~6 w' u
]
5 p3 v) F2 L O5 k. y. _* X! pend( j! o2 ]" F# S* c, E3 w
; S! m# y9 y8 |3 fto do-trade/ |4 U9 F6 k: l' V6 Z
;;这个过程实际上是给双方作出评价的过程1 ~' o' c& v& b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 a. M" s# ~ T" Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: F. ~+ y% E2 v
set trade-record-current lput(timer) trade-record-current
. v/ F: k. K- r, J7 \4 l: |2 k;;评价时间
1 K2 q0 a) ?) Q- ` `* [: C2 L; rask myself [) i0 M) S ?- W$ _
update-local-reputation' }6 V5 S. {( R* L
set trade-record-current lput([local-reputation] of myself) trade-record-current; G2 A; @& p9 `$ C" `& h
]9 N% N" J5 x; l1 E! ?: O/ F; j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, w2 g# S( f5 G& H, O3 s: J
;;将此次交易的记录加入到trade-record-one中
, ^/ B3 s4 |! Z$ I ]1 dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 G8 d5 c3 Y; K8 }+ Olet note (item 2 trade-record-current )
1 Q4 L: g- r- `set trade-record-current$ A/ J6 D+ r' M$ ?) G" x# n
(replace-item 2 trade-record-current (item 3 trade-record-current))& n9 G; @: Z5 X C( z
set trade-record-current
( }& N' H& I5 ^$ P(replace-item 3 trade-record-current note)5 O, V2 U5 }' ]% c1 w& B
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0 u9 e4 W$ K Y& C
ask customer [
/ K! v+ T/ V, C8 c' bupdate-local-reputation
6 r3 r; ?( n: |) a" k8 ~set trade-record-current0 V& U: s0 ^% m8 {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . x# k$ X4 T/ U
]
- V% A. H- n e" D+ o# n
( z. c5 v0 j" t( N$ Q
3 X" D/ C( M- M, [* uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' ~! r) q* K0 G( U. K! k$ b) ~
1 f0 c7 Q+ \; U: V! Mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" j& ^4 }( F/ l3 U8 Y! a
;;将此次交易的记录加入到customer的trade-record-all中) |. j/ k, N# d! y6 j s& z
end
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to update-local-reputation0 R+ A% j8 ]4 k4 V& C& L/ S
set [trade-record-one-len] of myself length [trade-record-one] of myself2 X* m- i/ n. v9 N, J
2 ]+ B5 x& u6 u, B6 {3 P) ~9 Z/ F( |, K# s- e4 d2 \4 D5 A
;;if [trade-record-one-len] of myself > 3
1 ^2 _9 Y1 v" Q8 E5 D N. \update-neighbor-total! _6 ?" l9 s% ~4 p; @
;;更新邻居节点的数目,在此进行
- _, s0 _0 q6 s, }) Clet i 3: H! E& D1 p5 [- i- @% [
let sum-time 0
1 K7 W! r, i/ fwhile[i < [trade-record-one-len] of myself]
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% Y! p+ e5 A! B; |- N. n* W1 y* C( O- ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). j+ @4 N( B5 s5 M. n# c
set i
3 u" ^: M: ^% P2 l4 {- q8 M6 q( i + 1)& W2 W; E! Z/ W7 Y4 z; e
]1 ~1 m8 l: Y4 w! Z# l) ?
let j 3
6 k0 E) ]/ g' A: A% @let sum-money 04 F: N! D. v b9 E
while[j < [trade-record-one-len] of myself]
6 ~4 H( z. s; G9 L3 b[- a9 ? P* f+ m; d. w2 T) y1 W
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)6 Q2 ?; b0 o! a1 W# X
set j0 B3 T+ W+ A" l* D* P8 g
( j + 1) s5 r! r) F' c. z' v8 x P
]9 o& C4 [8 z9 [
let k 3
. g4 s" K$ w" B) slet power 0% y& l* B2 `3 e
let local 0' s6 C7 `5 w2 \
while [k <[trade-record-one-len] of myself]
. y3 f- l, y3 L* A- `* {8 S5 w, y[4 j! `8 P1 u5 e% A( @- K
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) 3 N. y% o. u3 ~$ f4 Q# T
set k (k + 1)
5 [% {! U2 R ^]( u3 e5 O$ Q3 O2 y, L! u/ `
set [local-reputation] of myself (local)
$ P/ [( s0 H3 P. ]5 d8 [6 G- o1 pend
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( j+ G/ Q& `& X& P% @to update-neighbor-total
8 k8 a: m" c8 ?" I6 \. w6 Q3 H
) w$ o7 @/ C/ U+ Y% Pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 e0 _6 A0 n/ g, Y; D3 B- b/ ~
, p5 R5 a+ A! l+ |
- O9 z0 d/ X* O4 W8 | Qend
4 v8 E6 i0 a! B2 c6 ?9 k; |! A3 k( a) M- ]# c& C1 \* p
to update-credibility-ijl
9 ^. {6 q5 H7 c& i5 o2 r( {' w/ ]) z; P) W: L8 j3 d6 C7 T
;;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。
+ S& _& H9 E% W2 a4 a4 K3 ~let l 0/ s: o1 f/ I- a. \8 C8 f$ u5 ?
while[ l < people ]
& ~# |( f# `- j8 K4 x3 }( J' h;;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
: }0 M$ h4 {% A- W Y4 k; c[4 b. `# i% h# L: \& [2 o5 \
let trade-record-one-j-l-len length item l ([trade-record-all] of customer). o1 X9 m) i5 O$ f0 S2 b
if (trade-record-one-j-l-len > 3)' k0 x4 l) ^/ N. M( ~( q
[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
; y' S1 Z; o2 A0 Mlet i 3
4 b0 ~$ M, G2 s% Mlet sum-time 0+ ~3 p, A+ f8 f1 u c" o
while[i < trade-record-one-len]
; G7 T8 R$ g- p. I9 l[$ v& O$ U7 A# ^! M! \
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ D# h+ ^: x1 `3 \1 ^( L
set i) f) w% ]1 B R$ t. \) D n
( i + 1)
; j6 N$ D; b4 G' a* u]6 E6 Z4 X' m h2 X9 j
let credibility-i-j-l 0
) Z6 ?0 H/ U6 f: Z" ];;i评价(j对jl的评价)
* g3 l8 ?# P r4 y. Flet j 3
4 t! ?% g3 z" x. y5 E, ^3 X5 e* ^let k 4
+ j9 U' `1 ^6 qwhile[j < trade-record-one-len]: J" j5 P/ S& V, O/ J% @7 [
[
- ~2 Y5 i: G( twhile [((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
+ \2 \" b" B, d1 s/ l5 a* f( p3 Lset 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)
) L; G4 Z, H6 N5 w# Iset j* t: q6 g% h1 \+ M1 x( J/ c b+ [
( j + 1)
' _8 Y( ~$ v$ q% |6 u- w7 r# y3 F]
( d3 `8 n$ K+ e/ o a% tset [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 ))
V5 k+ E' R G3 c) a l4 t; \. y- [+ r7 x3 w
& ^! i' Y" T: ?* P E* {/ l: blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 M! @% t4 A' B9 r! j+ b;;及时更新i对l的评价质量的评价
; l! f S) q. U. y; Gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" S2 ^: E6 m K; t2 P( x
set l (l + 1)
4 n6 v2 ~: l+ x% T$ X* H1 @] a, @: Q; P5 p
end! F4 ?6 w; S/ z. L* a+ _( j6 b
: i* r2 s/ y+ i n# r% ?/ E" {! K rto update-credibility-list
1 ^; w: }. M2 ~8 n& \# }let i 0
; i' y. a+ i" U9 Z H3 {while[i < people]' |2 @/ z. f9 |% I/ R
[
+ O" T, ?5 a( U' Wlet j 0- m% u8 q% `$ _, X% G9 |
let note 0
! s# k9 r+ {0 v8 R* u' x! Nlet k 0' q4 F2 l l( T6 G. Q& {
;;计作出过评价的邻居节点的数目$ ]* X1 @. H; b* M: [6 q- P4 f* a: S
while[j < people]
! v# p, `: C" H4 I. W. `[' E- `+ j4 q4 i5 G3 \
if (item j( [credibility] of turtle (i + 1)) != -1); z% W$ u- E1 `5 F5 h# j& s. q
;;判断是否给本turtle的评价质量做出过评价的节点
3 `+ Q4 u: {( P7 m0 y7 `[set note (note + item j ([credibility]of turtle (i + 1)))7 D" a4 q" d: ?( u; R9 Q# h; J
;;*(exp (-(people - 2)))/(people - 2))]
- D# }2 ~" d. C/ _( @8 iset k (k + 1)
& e Y1 S8 F. O7 j4 ~2 C]
5 R) I/ ?* v' L2 `0 f& Uset j (j + 1)
" I! t' k+ u3 ]/ k* B]
# {5 B! L# y4 j1 y7 L1 [7 R6 Oset note (note *(exp (- (1 / k)))/ k)2 D7 j J O4 p! h4 W# m# O7 Z1 w
set credibility-list (replace-item i credibility-list note)( Z2 R9 X/ o+ G+ t5 ?
set i (i + 1)
/ W, H2 ^& ?. p) R* y) R2 P7 b]% d/ i( x7 H, f( k
end8 y/ z4 E; V+ K
; M; F5 q" t9 _) x2 B/ e+ X$ Uto update-global-reputation-list8 N* {; E l( }) u4 X! Q
let j 07 c/ \* i5 R; y5 \- `: m3 h) a( ^! R
while[j < people]: l9 |. O8 i5 d0 \% E, s
[
, [! Q" H, l2 }9 R" |* P' v/ ?let new 02 S% N- t% m# Y
;;暂存新的一个全局声誉$ X# e, w: Y) Y( x' M% F
let i 0
- {3 }* i" e3 a6 }let sum-money 02 V6 f; w; F; Q0 p& A: p. O' \1 ]
let credibility-money 0! y4 A' w" Z' J9 U* \
while [i < people]- ~# p' a" F8 n3 g( U
[
@' E/ R9 e: {3 @/ ~5 |5 @4 b0 Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 g- V9 }& Z Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), ]% C8 B; i5 X5 [: [+ h
set i (i + 1)
, x- m8 ?# k0 ^# _2 L, ~/ u8 a]8 x; x0 c# w* h5 I! V+ z% z
let k 0! G9 f, ?. h2 Y/ \
let new1 0
5 P! A% D9 c1 `3 K5 awhile [k < people]( T/ B! C) Y- C" x- O' B6 q
[% G" o) O/ ~8 o& L/ j
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)$ F9 K* T" p; @1 D, q( l
set k (k + 1)0 v9 {( P' }# }% p& g$ q9 |
]' Q* f( O: `3 I* i
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , ^; A: @9 d3 n% H$ ]
set global-reputation-list (replace-item j global-reputation-list new)( c( z: E: P& ~! Q
set j (j + 1)- @1 m2 m/ f* v5 A) B+ r
]
5 @3 t5 Q, _2 ^: B4 F. J+ O# Rend
# ~) B1 }. I$ X1 }" c0 X9 s
1 @' e0 t* G* R. G, ?) T
w! j; b+ ^6 ~8 I- V& G
4 B7 E6 A2 @( k9 ?1 r! Tto get-color m V( t: W! C+ i y" M
7 x& O. ~' W0 u4 q
set color blue- A) G+ V8 q: J$ R( V; r9 t
end
# r% K: P( m; M: d+ Y& w
: W4 r3 Z0 K5 a3 A: Zto poll-class: m; W$ `7 N+ g8 W3 V$ ]
end
+ ^" {8 s1 L4 k |/ |4 E! G' T+ u+ t* X& I; |
to setup-plot1: N/ V2 \( n+ V
2 V' j' X1 j' _( w! T
set-current-plot "Trends-of-Local-reputation"8 i0 Z3 f1 ~3 _
$ S3 W' D: x) Q! qset-plot-x-range 0 xmax: A3 ?. M5 K, V
) Q* R! Y, r+ \& a, rset-plot-y-range 0.0 ymax
2 T" n7 T5 \5 p) x8 ~end
3 U7 F) M6 y- r4 f% g1 t2 `
* K( }9 C" C$ H7 gto setup-plot2
. \, _% h/ C4 T# t8 S% P% `) _) f3 E" L9 }& v4 \; ?+ w5 q2 `
set-current-plot "Trends-of-global-reputation"
0 m3 A/ _. z3 e' H( c+ j+ o4 L7 f; Z' {5 v0 G# M( m
set-plot-x-range 0 xmax
) B b* V- Q w9 \ l# T9 r" W; V" ^- c1 r
set-plot-y-range 0.0 ymax" @# m; e' Z( C+ M' Y+ `3 F4 e; _" R
end
1 c2 m1 \% f0 h7 z! D2 x2 e2 y5 A7 I+ i+ Q: |" e
to setup-plot3# o1 i- q: d, U% b
9 i+ q- X" b6 ?) x9 q, Z) ?
set-current-plot "Trends-of-credibility"
1 X7 e/ K# o5 k8 A
0 O, |8 `0 z: oset-plot-x-range 0 xmax* a0 H/ v/ O5 Y1 l0 ?4 a
$ B" T/ h0 O4 b9 @4 \set-plot-y-range 0.0 ymax
& E# W' l$ ^; E6 b% J send
8 d# l2 F. z o: [$ c
1 ]# G. J' c$ L+ `& Wto do-plots# x, R7 i" ]" H* L( x7 J
set-current-plot "Trends-of-Local-reputation"$ k! r' [, ?; z8 v6 h
set-current-plot-pen "Honest service"$ D: U, f, l: z; H) Z2 N0 I
end
) F' z) E! \5 h
' _. ~$ ^7 ], l. I& M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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