|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
' U2 Y" ^ e! Cglobals[
7 C P1 N& o4 ~5 s# h; D# `3 Cxmax
6 b+ r) w% I; Symax
1 i) a5 I4 E) M: q) C: Wglobal-reputation-list% J& n: Y4 {' M
. M6 }9 ]9 Q& j- e9 b' n- R;;每一个turtle的全局声誉都存在此LIST中
4 U, S* Q) \# X. a- W+ @8 Kcredibility-list
[ X' E7 W/ ~: C5 h. I" z5 C# o; P+ s;;每一个turtle的评价可信度
- S, A. F. J; l8 u+ F2 xhonest-service
4 t2 \( J+ N6 v3 Nunhonest-service4 ^2 u: }, ~8 D5 @9 O1 g+ Q8 t1 B
oscillation
1 o/ z ?! e3 |$ mrand-dynamic
R1 E; v* U. j o2 p( Q: []
: r/ z) d+ }( S y" M+ J1 p6 y2 M( X- j x; m8 C( d8 X4 J7 x' k
turtles-own[' z. \* t6 G, r# y/ c! }* I
trade-record-all
7 U( K4 X( Z7 T9 r. ^;;a list of lists,由trade-record-one组成
" y+ C2 d7 M8 ~6 y- Strade-record-one
" p. E; q8 H1 ?4 p, f. g9 B" q;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 U# [" J3 J& |/ I, z# C
/ X) l; H6 x7 B) ?$ [$ F' [9 p8 g; U
;;[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]]
2 X& A7 [' g/ S2 b) U6 J9 btrade-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]
' U8 S! m, k8 V2 A' ^7 \2 Acredibility-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list0 J i) ^8 e: \
neighbor-total' e& V/ g' r/ Y2 }4 u
;;记录该turtle的邻居节点的数目5 w! c, \; R4 E) z; n; [
trade-time
/ h) z+ l5 b& n' i2 T4 @;;当前发生交易的turtle的交易时间
, N3 G2 ~0 l J2 U \' }appraise-give
; {6 J% r1 W1 D6 J6 [;;当前发生交易时给出的评价
- K7 k8 o4 h7 U; p. G) n1 vappraise-receive
- e! l6 A3 o; G* y) ^$ T, u;;当前发生交易时收到的评价. C* \% h8 ?: [: I* ^+ s
appraise-time
$ T; |7 @6 c3 L: H9 X& O;;当前发生交易时的评价时间
% V& b; o3 B) m6 [) \3 glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉- o# D" s/ S% v% }9 w0 Q
trade-times-total
4 B$ B& m6 L/ k/ S. k* };;与当前turtle的交易总次数/ N: L/ r4 ?: C0 ~/ F
trade-money-total. I0 S4 d: h2 ]4 T, c0 a
;;与当前turtle的交易总金额
2 G7 m6 O- X% @. \" N% t5 jlocal-reputation. Q( {2 P! p; d; h4 B+ E
global-reputation
1 i9 C: X3 m; p9 l- k: ocredibility r0 H9 o: E; K8 o
;;评价可信度,每次交易后都需要更新4 _, A4 L! }0 k; W+ e- O. g
credibility-all
; s4 M: B G7 X N% [' V;;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6 I- B4 n) d+ d) p: H
y+ e% l* q% N8 T @, K7 s;;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/ v% m# }+ W! n1 ?& N
credibility-one
, }" E' p( \. J;;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
, u! {' z% ^! uglobal-proportion
/ V! P4 X, o# a/ G ucustomer6 ]5 m/ g' f* I* h
customer-no/ M. o+ Y9 Z* ]2 X6 @ b
trust-ok
) E3 A6 {9 n. x4 x. V, ?trade-record-one-len;;trade-record-one的长度
5 B6 Y4 }: d7 p8 m4 `$ C2 q]
- d7 l, E7 |8 F/ r7 n
2 N9 U K# l) C) y& @$ q* q;;setup procedure e" h- a5 b& v' r& j8 y6 I
0 h( y8 d! F1 F- J- }8 J
to setup
5 s( A3 G3 I6 ^! Q; N4 s, @0 W/ y
# Z( l; K) T/ r- O. f! e% tca
4 I1 N1 |8 y( h8 E: G
6 x9 K6 F' \$ jinitialize-settings% q; t. l/ V* g) i/ Y; p" k2 h
; ~+ i1 ?. t& { g' h6 O" C4 Ecrt people [setup-turtles]$ G; ~. P- Q, V# B! @ ~
( s3 D8 ^) V( K% m% M0 t
reset-timer
0 s L `7 H& }& S: a/ j1 J2 P0 h/ a8 f G% S+ s5 h7 t
poll-class
" @/ @9 { j/ b$ `2 T8 ]2 J
! O# r: |2 S% r: Z8 B; |! b4 H9 asetup-plots* @- o6 Y5 f' a0 p7 ]: x
' Z1 D1 \: }, v( y, W% T# Tdo-plots" T/ A' O* o G' j' i3 J1 f& R2 E
end
0 ]% D6 ^0 d2 u4 l0 I
; g2 @4 }* T- ^" Q' K9 y6 o# @1 B+ pto initialize-settings' g1 f' \2 R: }+ ]# Y
[: F; o( W1 E" D @set global-reputation-list []/ Q6 \3 W& A' D+ B- G+ G4 v* F+ y
. Z S5 R8 {$ N4 |+ B" O% oset credibility-list n-values people [0.5]7 m" u/ ?: f3 k4 d4 y
1 m6 C j U+ P8 zset honest-service 0
: N2 m; V y" b2 b
; |" c, V5 e2 [3 `/ Xset unhonest-service 0& v: m# j5 i6 t) v" w, d {) |& ]( \
7 d8 _) Q% k% p! ~
set oscillation 0
" \/ S, g% w- P m2 u- L7 H1 A1 w" h7 j p8 j1 G/ O' J
set rand-dynamic 0
8 F4 ]: R# t% R! c, g, fend
! w7 C/ F# m4 R, M% n* ?% _( ?& s Y' k- z; S' s# ^3 }
to setup-turtles 8 f, E/ t) u" _! a: b- o
set shape "person"
# {# O/ v& Y( O! Bsetxy random-xcor random-ycor
! r+ w0 A0 q5 O( Tset trade-record-one []* A9 a. A7 ~1 H
; `# }/ y" d* X( q A* J: D. p
set trade-record-all n-values people [(list (? + 1) 0 0)]
- R6 \- f$ a# f* C" ?
7 \+ l& L- `' r0 f q$ S5 uset trade-record-current []
- _3 |$ }+ `# T4 g8 D/ Kset credibility-receive []( {6 d7 a$ r I
set local-reputation 0.5
8 f, c; o6 ]# L$ r6 G* xset neighbor-total 0- {* J' X& X c @, f5 B0 e! k5 t
set trade-times-total 0( X6 C6 G. ?5 z( R/ E
set trade-money-total 0
" g3 c0 o# S1 ~9 U) I" F' D8 yset customer nobody
5 o$ N: R& b: o. u. pset credibility-all n-values people [creat-credibility], h8 M) m" z. Y/ h. v
set credibility n-values people [-1]
+ ]( S G5 d% M S r7 ^9 hget-color
# J' O! d9 {5 k3 t. i& J, z- z$ b u$ F% e3 h
end( U7 h5 g4 ~" D; J3 Y
* [4 s! D6 r2 E0 S- c. c
to-report creat-credibility7 L. l4 M* g" j& x) b
report n-values people [0.5]3 `9 r8 o- {) F
end' n* O2 A% _- H/ r! V4 F
) S: J; o( Q. W! P5 G$ T5 nto setup-plots
& K9 Y" M* O, X6 ]" ~5 E4 Z- E$ @+ }+ _9 l' o! t8 p
set xmax 300 n; `- d& H9 e6 B2 T9 f+ f7 u, K- \
8 W" v7 y" [9 P4 w* r' z0 J& {set ymax 1.0
: u, ]) p1 z: ^/ b6 h1 ^: C. H! e: U+ f! z
clear-all-plots; E) x, m/ R+ i- \# a
`: a: y- H' `- f& z- `# X/ ssetup-plot1
2 s' m p( a, u: L* r Z, M$ t4 Z3 Z
) `+ O1 x6 O+ q9 m: C# asetup-plot2
/ i) a1 M4 ^3 k6 K+ w: }) w
& U) ~$ ~# T% n9 i$ q8 _. xsetup-plot3
6 q+ Q( _/ \7 p0 T2 k! Iend3 J! ^( I% v' c, g
. I- Y: I5 N4 s7 `5 N9 ];;run time procedures) l8 q$ U% K& q8 _3 d6 d* H
P- K1 \& @& d; L- k7 mto go: z) E" s8 _% G9 r
5 s l& l0 R& E/ A9 v# y' f& U7 lask turtles [do-business]+ j* s$ e1 E+ B+ E$ F7 O' C
end3 }8 @1 @$ n9 s5 x' u+ g7 Y
( s- S% h% V% jto do-business 1 r, z( n! ^9 F, }8 C4 Q# f
8 p8 {4 X" F" l6 N
- K+ ^1 V3 w- D2 P, F0 \2 `rt random 360, C. [. [ s$ l( A& A7 h
5 A* X9 j7 g7 o. jfd 1
/ B. E* F+ Z. V- ^" c' x9 R9 H
9 ]" u5 u8 n0 \ q$ e jifelse(other turtles-here != nobody)[
' J7 O# ]) W" y1 C$ E3 h, L+ G2 z' o
set customer one-of other turtles-here' G: ^ Y( Y+ Q/ l, _3 n
$ r, Q9 K3 c z5 y/ }6 X" c
;; set [customer] of customer myself
" g# N. z; j+ |8 z {8 S* d( B
& t5 {- X" l& K+ Q/ Nset [trade-record-one] of self item (([who] of customer) - 1); y i: M3 V5 y+ Z' g _5 R. {) W
[trade-record-all]of self7 F* ~' Y8 \, L
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self B* \$ M2 |! l, f( O
/ ]' q% S5 y# S+ x- W
set [trade-record-one] of customer item (([who] of self) - 1)
5 u7 n0 k1 M4 O. p. O/ o[trade-record-all]of customer# E" j3 C; \) I
7 ^" J/ j M, u% F& v. t# E
set [trade-record-one-len] of self length [trade-record-one] of self9 z8 u% j4 t: X9 E" l8 M- v. ~
5 y5 y# X6 I7 \ N* gset trade-record-current( list (timer) (random money-upper-limit))+ E; m7 y, J( v' r4 }5 Q5 r
% M' u4 P; q$ U) {* L2 }
ask self [do-trust]
f4 C2 ]' h6 P% M;;先求i对j的信任度
4 J3 E9 q% V. ]& R, `
9 a* _$ a+ b; v/ a$ e% q6 uif ([trust-ok] of self)6 e9 r8 x* z' k) U- s) Q% }, N3 A
;;根据i对j的信任度来决定是否与j进行交易[% A) u: c, O% k& g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; T+ c7 u& C G! A4 w! j
% v) H" f5 ]7 O) A" |[
4 \0 R( p$ d2 y2 Q' q
0 q9 m6 ~& h: p- Q8 Y- v* ndo-trade |# y: W$ j# a l+ f* j0 u! t) _; C
) P ^- M, {/ G1 E$ `4 ]update-credibility-ijl& F" I4 _' A7 P% A% n
! V# G1 Q. X& J: Cupdate-credibility-list
) d9 c! F3 w0 a) @+ u
2 X5 E+ \- j6 R! C- @
. d9 C" g$ _, T$ }" oupdate-global-reputation-list. M, @- @( s! b7 ~
& s/ g+ U r( T
poll-class
, \( H* B% V) Q6 `
* ? @$ E u- H3 j7 Wget-color. P: i% R% u0 d3 n3 o. W
: n5 _2 E& m( I' s6 H) Z
]]$ ]& H" w0 k) N( b- y' j0 U4 \
U, X" D' @& E7 S. l
;;如果所得的信任度满足条件,则进行交易. b* S9 u. u/ A$ M. G# P
4 M" ?( A1 k4 h9 w! m& l- g' Q; S[
! U6 F+ u$ s( d& Y3 w2 h' z2 J: F8 i& J: S3 Y# F7 S" D. V
rt random 3604 M6 K b: E0 b. A9 q: ?# P
5 b& I+ {* a9 ~* {0 y! I1 E2 gfd 1# D2 U% D7 J/ z: b
$ T$ n* n! a0 ~+ @9 ?]
$ m, n' i& M) W
r7 F' z; t# r. h. I1 i1 e9 A/ \* B6 V4 _end! _* y2 @0 b- W# e! Y: W9 E* o& g
/ K, Q5 p3 j7 K1 d6 `
to do-trust
}5 e% t: L* {0 a; D3 T$ Y# Z& J, Zset trust-ok False
& B' \2 e* i, ~9 v1 B
5 j& y0 ~$ [" q) `
( h8 h) t: p! T: V1 Q% a, blet max-trade-times 09 W+ O/ m( S4 i% T3 W7 }/ o: I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 F% ?7 i1 Y; L" w: b
let max-trade-money 0
: ^) i8 Q. A N: A9 vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! q2 [# z; z% r! V* Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* B# g. j& P# w* p
1 R* a6 b9 W# p+ w$ p8 J: `
' N4 s! D8 ~* y# g( e' p) Aget-global-proportion
+ H% J" f- J* h6 a" Tlet trust-value" n0 c5 _9 J5 j7 z0 T+ x
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)
# y% s% |: a( x# Q) _. fif(trust-value > trade-trust-value)
# _& U0 G' M- N& H[set trust-ok true]3 t& r/ D/ I2 [/ L9 R& V, Q
end+ a: I. c+ \0 O8 {% G
* T# m- H7 e' M6 x" ~ ^to get-global-proportion, y+ W2 v$ R0 ?
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), F& b) ?, W8 ^- t7 C# H
[set global-proportion 0]
4 F2 ^* i5 E5 l8 L% d" T2 e8 C[let i 04 @$ r$ `6 G+ R7 ]7 P( S
let sum-money 0( l0 J4 V) W9 c0 G
while[ i < people]4 B% u' ~7 [: `1 Y
[
/ L' Z5 n' y( D* Wif( length (item i
/ p! {9 O% S; Y! Z[trade-record-all] of customer) > 3 )7 C) g+ y' L1 ?1 p, p; G
[3 W2 Y2 @0 Z( B' V" v$ V
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" E4 o0 V C/ y/ l& m- m]
, l% S& m# }% v/ Z]
S! M/ w- }2 V7 ylet j 0% `/ }* p3 ^/ ]: l" }: L$ x
let note 0
3 e* ~" ]! T3 D$ Q6 S4 N! d3 ywhile[ j < people]
& Q: j% c. f# U+ t[ }* T" Z2 M A8 R) L
if( length (item i G3 V% J' z! H7 `
[trade-record-all] of customer) > 3 )$ r" D3 c6 ?! d& i$ E; j; d% {3 A, K
[
% O6 [ z% ~! Y: a) d% Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 p$ Z/ [4 Z R. Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) W6 u. z R9 _" L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! P) D% S' X, G) l9 \]
1 G3 P! \0 _# r# E9 Y; }& a]
6 g4 w4 ~3 u8 A* B4 rset global-proportion note
3 @9 v) ^& `; P" I& L3 u]/ E7 t- E3 z# ^% p* |7 C$ n! s
end _9 \, k* ]# g4 i
r1 z/ ]7 M- q: kto do-trade8 p4 M8 S8 x2 o$ [/ Y
;;这个过程实际上是给双方作出评价的过程
# r3 q d8 r- T- l* oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- t1 G" D( G! V. Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 \) V9 w& h$ d2 W& s# r: \7 W
set trade-record-current lput(timer) trade-record-current" U: ~6 T% s( R: }
;;评价时间
9 _' J+ `8 r- A `9 c1 G' t0 L6 U- Bask myself [
* z- _6 t; n* C: Q1 t& Vupdate-local-reputation
' |$ O, ~7 k* U7 a$ @1 \9 F$ qset trade-record-current lput([local-reputation] of myself) trade-record-current1 O+ L: u! a1 z$ W$ T
]
' z7 p# i5 ~' D! g$ t: }, L+ l( cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ X0 @9 E1 v( b& P2 z;;将此次交易的记录加入到trade-record-one中
( k9 |- _3 L3 q. u* P4 i4 }) Tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% j, U4 ?( J, M8 ~
let note (item 2 trade-record-current )- r+ n$ _! }0 n0 l( T! q
set trade-record-current
% x+ O% U& J( F0 B. `(replace-item 2 trade-record-current (item 3 trade-record-current))
0 B" C+ _6 |$ s, n$ W& C2 kset trade-record-current
: ~ l: X: B( k7 K(replace-item 3 trade-record-current note)
% P% X, j/ F% V7 x& T/ ~& A# t; G
i1 E/ f+ z5 a1 T' ~ ^# X( j
. m) P& y, M l, x% rask customer [: K& U7 r& ]% \) x, {' y
update-local-reputation
7 x0 j! C& C2 x( i9 G- [set trade-record-current
s3 G# f t _' L. I2 W(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& G2 Q! [" R% h/ j5 H; e% P]# K5 f1 Y( U, K. ?' o* r% {) Q
$ Q1 |; A* a h, ?/ ^& N$ w0 z
4 H7 F0 R: ~2 N1 _9 e. f6 V: fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" r% W0 h" a1 h+ |! A
6 t. c0 N% r3 Rset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& T3 h* N5 g, @) t7 Z _# t# @* u' J3 _;;将此次交易的记录加入到customer的trade-record-all中
! k3 Q# M' s! L& Qend8 | ?2 y& o4 d! s& P
+ J- \& ?9 M* Z" l
to update-local-reputation
% R" c1 u6 o, l* _6 U2 Bset [trade-record-one-len] of myself length [trade-record-one] of myself4 H M5 l# T j
/ C1 m( c3 |5 c9 m
* P" ~( V6 \# a* {7 a5 s! G;;if [trade-record-one-len] of myself > 3 % u' ]! b2 {+ q
update-neighbor-total* u! \; u% M% |. @7 Q7 b1 b2 k
;;更新邻居节点的数目,在此进行
8 d9 T/ x$ U3 E& }3 I( plet i 35 Z; ]5 }) D& e2 }: O; A% |" `
let sum-time 0
, M( z% ^, ~ ^% d: Y" Jwhile[i < [trade-record-one-len] of myself]
/ k0 a. Q5 S% B) _$ w+ v) b( a[8 m! G( |# b! x' _1 m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# y' ?" H' M+ R2 g5 R
set i3 j3 V; @6 A. f" w/ P8 q. o6 z
( i + 1)
3 @# E4 I" J3 T, Y) Q]5 z- S3 C# i" y" ]6 N$ U
let j 3' ]5 y [+ i( O$ e0 h' U' a
let sum-money 0$ @' B# ^9 e) Z& b+ N
while[j < [trade-record-one-len] of myself]
6 C! P q: Y: D% z" F( r% j$ `7 [[9 R. M5 S- S" W; \5 p
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! o9 I* Y/ v1 |4 mset j6 B& P; S5 H1 l, K
( j + 1)
' x' S$ O) }6 `5 j9 |]5 n3 e; ~; U) Z/ b7 @
let k 3
& J0 f. O9 P" D- }$ Nlet power 0) k# ~' T+ j% m/ k; I( m! W9 l
let local 00 k8 _$ q: I: j x2 E# F ?5 X
while [k <[trade-record-one-len] of myself]( U2 Q# C" ^% `1 e: x$ u7 d
[
9 v( {- N2 ]0 E# Xset 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) , k" Z( B* t& S" D8 @
set k (k + 1)
$ _) ?% F1 w- C0 `6 ]) i8 A]5 b4 F, \+ h3 x# E1 V' i# i
set [local-reputation] of myself (local)
7 {- W$ Y. q% D" K" h; Send/ z5 t) S, B7 y! M# T
0 {9 ]5 }% w& q0 _7 P
to update-neighbor-total
2 M5 k- @9 P0 f6 `) N3 i
! _. o" h9 N T8 J1 m) d" t6 rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 N- q8 }$ W+ t8 b m
" ~ i3 g$ _, o0 ?1 `9 X8 v) U! k. J3 }' }5 ?& N7 V1 O+ E
end) o v: e* g' R6 B9 Q; W0 i
* t3 [6 n ^0 E: \+ g9 \
to update-credibility-ijl
0 j$ i K5 V) l7 t3 Q" q
4 ^ c7 ^8 X/ [9 U9 U5 P# S;;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。
/ y/ t6 ?1 {/ Alet l 0) t; ^2 a' _% ^6 ^
while[ l < people ]! W6 v* Q# X3 y1 m- 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
- Y. _% [ d) S7 i J L[
: K' T' G- h9 @9 S5 y- vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 S5 S' H0 n( P9 P* L) X6 l
if (trade-record-one-j-l-len > 3)
3 e7 u: _5 n K! |% p[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 W/ T& ]( d5 }, z3 c0 {( X
let i 3
# f; }; ~9 `; L6 ?let sum-time 0+ m* v) H* j2 j+ ?1 l
while[i < trade-record-one-len]; @) J+ }3 `( X7 G: A o* c
[
4 ? |8 g7 f% w, y3 Qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 t2 S9 `# _! Mset i4 U0 i/ C9 v( K$ t+ T
( i + 1)0 s4 p4 {9 \: W* ?6 ^: S6 t
]
2 Z5 C6 X+ D- S8 w" R. \7 dlet credibility-i-j-l 0& Q' r( r# c: V$ t a3 n8 c+ d
;;i评价(j对jl的评价)* h% [) q9 X4 P
let j 3
$ y. `7 l' ?: `2 @) olet k 4$ w7 B; F7 N3 Z* c- Z
while[j < trade-record-one-len]
. @7 r- E& R4 T( t# |: f3 z[
8 u" Q3 H. E7 m8 x3 L$ Gwhile [((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
. d( F) x- ?( a9 S: s5 v% L# Qset 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)
0 ~" O a8 }5 hset j6 [, O4 q2 H+ k1 H \4 n( e- M. J
( j + 1)
4 r, `, q7 ?1 [4 C/ Z: U9 R]
F) d, {" ]2 ~0 f( ~" @$ l9 gset [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 ))
: S( Z4 f+ d& G) u1 [4 o
- i) `6 [+ U6 o8 Z$ S H5 f: H. H( N+ A0 e J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# ^: C% X8 u8 e! k;;及时更新i对l的评价质量的评价
3 H0 X6 `8 c% Z" k+ L( fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# e+ G8 K7 F) l7 C" X
set l (l + 1)
. b) q8 A: x) e0 m% M( U]
& ?' _0 O! M7 l, U" U/ @/ mend9 C$ D3 e4 p( P! J' P6 `% u8 P
& x0 M3 y0 P9 C( x, Kto update-credibility-list
' H4 \% L- i" ilet i 08 N* _/ x- o" S6 ?
while[i < people]
* d- N% z5 p6 K: e7 Q[8 D0 _! l9 K+ Q x* x, w
let j 0
8 S" v) K) M+ e! T& ^/ ~let note 0* V/ F/ `6 A: l `) X `. E$ ~
let k 0
2 {! {, E/ c5 e$ @' |;;计作出过评价的邻居节点的数目& @8 Q a3 v, B9 n( o5 I
while[j < people]
( M" e! ^8 i3 K6 q4 ]2 U+ {[
I; B" R4 `/ ?! e8 V: ~ W% eif (item j( [credibility] of turtle (i + 1)) != -1)9 Q" N. _! M$ B: q/ w# q& i, _+ k
;;判断是否给本turtle的评价质量做出过评价的节点
" n' m0 {% C& `; t9 U% f, {/ G) d[set note (note + item j ([credibility]of turtle (i + 1)))% u+ m+ n* H1 C+ B
;;*(exp (-(people - 2)))/(people - 2))]. b9 C ~1 l6 t# [" @" u
set k (k + 1)
, c: q. D0 S1 ?* s- t5 V+ C]
) H' G' l0 r" _; ]) iset j (j + 1)
9 `6 j. F* x% T]
' f" l' S' u) V) Kset note (note *(exp (- (1 / k)))/ k)
4 l X% t2 a( I$ I6 d! D4 Fset credibility-list (replace-item i credibility-list note)
6 E3 p6 n/ A5 H: ]2 ~set i (i + 1)4 D" V% m( |& \' i2 Z
]6 T% d1 I8 X' @. X7 [( {$ d- q* V
end
' Y2 @0 l. @$ r/ g0 B t
4 r* n" |6 E% S9 s1 l% h+ oto update-global-reputation-list' _9 P6 @! ~9 I, R2 t- g" J1 y4 z
let j 0
( P: |! u2 {# c, |# q2 G; vwhile[j < people]# A9 {- L* L1 L- T
[% z( m) `3 s) I4 b4 n. J9 @+ q
let new 0
+ |$ X8 |6 y3 B* ~7 f. F; {;;暂存新的一个全局声誉$ h. f* N1 V: m) e
let i 0
! f c' H& a+ c7 V1 Q' ~3 {let sum-money 0
" G2 C, s: q6 L2 W' N- |let credibility-money 0# C/ S8 q$ y/ j1 ?
while [i < people]
& \" l! |9 `/ F" A- t* f" d[) n- [; S. `- h% S% d
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* n) o' {5 C, `) b9 M; z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
v7 k8 x* C: {+ lset i (i + 1)
1 k, x! f e0 P3 ~! A! H]
7 S$ I f/ d$ L7 R/ c5 Q- Xlet k 09 Z- F# h) j4 Y8 K
let new1 00 J- J* }/ p# R1 i; V
while [k < people]# \3 ]3 S9 A$ E& C) i3 s" K
[6 t# u$ W7 j/ d. s! C
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)3 o3 S, t/ O/ x0 F/ k
set k (k + 1)* s$ I7 x6 |, P3 K; R% W6 A/ d
]
4 s* ~( R% v) H7 Q; N7 z8 Mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " Y4 H( Y& S' J+ U, K P ^
set global-reputation-list (replace-item j global-reputation-list new)
# U( @7 @! R% Eset j (j + 1)
) n/ H" @/ q5 Q; X0 P]
' v, M0 b( a; s5 Xend
- t- j, K( f! }9 @. R. }2 c6 W& l# k: [4 ]9 {
2 C* l3 T; t u9 M( m$ L
+ W0 \. c% r/ M# tto get-color
. i; U2 I" z2 O' m a5 J* P5 b/ _& S) y
set color blue
. |: {/ X+ p4 u7 r0 [end
! N: S2 O ~" h" \ ]# L
{* v- h5 o3 q, L# O- S& eto poll-class
8 ~' R8 i3 K ^% ?( zend
1 a7 a0 H) b( h9 J9 g4 I1 ^) k' \9 K3 ^
to setup-plot1
. Z9 V1 \2 K. e
% k) A' H1 @$ w; dset-current-plot "Trends-of-Local-reputation"6 O. w3 O, h! k
S% r F. f7 P* }% F* m+ E
set-plot-x-range 0 xmax% w8 z$ g6 T, g* Z* S0 J
& T1 E6 n O4 B) n- B L% Uset-plot-y-range 0.0 ymax
3 m: Y& ]2 L' m y8 L# Lend
7 b/ w+ c4 ], y+ b: a: N+ W* g+ x8 l- Y# R% c- J! L* _" Y3 r: u/ l
to setup-plot2
# V7 ~+ W9 R; f' N* P- u9 `/ u& s& k/ t, X! K0 U5 @% [
set-current-plot "Trends-of-global-reputation"2 Z0 q) D- f$ b9 E G
& M8 c) C J& A" t6 Q3 Bset-plot-x-range 0 xmax
. F$ S" u& Z* y& ?- O5 S% R. a: n* _" X+ O2 L8 f5 W8 f/ }
set-plot-y-range 0.0 ymax
! a, N2 W: X1 f8 |end
8 i8 y0 i3 W: P
! s" `& b9 l N- W+ N; ]5 ]to setup-plot3; y7 s( X" D! C+ ^5 M
/ D8 P; ?+ J) N! C/ E' k* c% |
set-current-plot "Trends-of-credibility"+ f! k1 W" x! B2 u5 b, G- I9 i9 R
. o6 q- [( @9 ]# m v1 L7 f" R+ fset-plot-x-range 0 xmax
. y% Q; b1 A9 _/ o0 \3 q: ]/ k% z/ X6 N$ P; Q" f5 }
set-plot-y-range 0.0 ymax
5 ^1 ~& O( p2 {6 y' h2 _end
4 F% H7 W- n" E R3 H! i- W+ G3 f5 _4 G+ y ~) g+ ^7 r, o. y3 X
to do-plots
2 v) K: _( `/ O" \) D3 a; p: ?set-current-plot "Trends-of-Local-reputation"
0 q2 y) `/ o. B- w( Vset-current-plot-pen "Honest service"
7 ^ _7 b) t) Pend/ x% @4 L6 b+ ]& v( a
) n8 \. r Y7 _: o( u1 W) e y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|