|
|

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/ R, O8 W3 R/ h5 m% b3 m
globals[
4 P6 T6 ]2 D" gxmax
8 C8 D! C7 U) c; c" u+ @ymax
/ N4 I( L' y4 L/ h$ G0 pglobal-reputation-list
- ]5 ?" B V8 J; t' J7 F7 J: |4 G t# I7 h
;;每一个turtle的全局声誉都存在此LIST中+ p/ N& r) R& L( H6 ?* y: C. K
credibility-list
* N; ~$ A `+ _# h) g2 `;;每一个turtle的评价可信度
$ q) J+ p2 m. I" chonest-service
# k: s* U, C/ J% |! ^unhonest-service, r' ?2 u6 c ]8 s- q! Y& ?
oscillation9 p( d Z! N2 X
rand-dynamic
8 W( J3 O8 f) ^$ X( G1 x; @]8 z% Q6 n( ]7 c& Q8 J1 M! S% G2 q
( w4 `2 e4 L2 w! Z
turtles-own[
/ V! F+ K9 A# k- @trade-record-all Y G! P7 z1 i3 f5 @, h
;;a list of lists,由trade-record-one组成! ]; C) V, T( a: m
trade-record-one
1 |, y; v9 ~9 K$ H;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ d: _: U$ ^5 \! X2 I2 I
" S1 G. d6 i4 N9 O5 }8 U5 w" D @;;[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]]
- C, @7 G/ n/ jtrade-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]5 V* Z# j# ^$ }; m# o0 L8 ^$ [: O
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
! I0 ` S: G. l1 `/ O) dneighbor-total
6 S9 a) s4 Z/ b5 G" f;;记录该turtle的邻居节点的数目
5 k4 ?4 ^# z1 u/ @trade-time9 K, e$ J) @& E9 f) p; p
;;当前发生交易的turtle的交易时间
5 B! ~1 {, C0 {, ^& S6 L/ Xappraise-give
9 ~' H! g, z; u0 \$ \/ |5 V;;当前发生交易时给出的评价
- _# q, U( p" I. V) a6 d- ]appraise-receive
d7 G: H/ c0 E;;当前发生交易时收到的评价
2 i0 h) C7 a5 s( i4 lappraise-time
4 T' v; p4 \5 J# R- g3 ~;;当前发生交易时的评价时间
3 F o+ a' K/ O+ J9 f2 G8 m0 Hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
9 H6 _4 U* ~8 n2 m' n2 Htrade-times-total N7 i% {. j. d& k& U
;;与当前turtle的交易总次数
' v8 {7 n0 A6 Q/ Q/ `trade-money-total& w1 g' Y& D0 @( ?; o9 A
;;与当前turtle的交易总金额0 V0 A( B. ~; i) a
local-reputation) k& q* M) j4 L6 R+ V4 {; R$ ^
global-reputation
/ m( r% I7 V9 g. xcredibility) A5 d" {6 ]+ F5 f7 j3 j1 j
;;评价可信度,每次交易后都需要更新9 N. _8 O0 l) i
credibility-all
# ~0 {8 e$ H# h$ ^+ O- m6 ~;;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$ `0 O) S, Q2 n% k$ p( @2 j: _- X
4 R$ c3 o/ Z% h+ N# c0 V
;;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
7 w4 `+ o$ P' zcredibility-one
6 D2 P% a4 \; I;;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 S0 A/ y: z; ~
global-proportion
# U8 y9 W" L5 N2 J0 acustomer7 b7 O( m4 f- g: V% o. y
customer-no/ n0 c7 }* ^8 n; U& D% [
trust-ok
+ K3 g3 o, z- h) }trade-record-one-len;;trade-record-one的长度
- z3 f& x& \2 M]+ x* |2 l7 n t
$ G3 _& `) r" H' {; `/ i/ l/ K w7 E% x
;;setup procedure( v, ]1 N. O5 o# s, Q! F
n% e2 b% I5 S, m/ j3 S6 Kto setup
$ Y2 Y8 t: j" q( e$ @5 S
+ }- d) J) E2 f8 b& {6 ica+ H, a& m. J1 B# Y
: M6 z) h: [7 B) r6 h1 G, {/ V- b
initialize-settings
7 }* l* x6 K- ?: i" i: B C j3 F! B
crt people [setup-turtles], x) w8 K: Z5 n3 q$ T/ [4 W
2 e+ s. ^7 m0 b9 X+ Z y. T. R
reset-timer
. o& Q. j7 _7 G, s) Z8 f I, c
4 ^8 T4 T* W& b! a7 J& L" opoll-class
, k. W" V# T& G) J. l; T' L7 ]# v5 F
setup-plots
* r8 c. w8 [1 A* t( z" e( [ v: M3 j- O2 v% ?* P& s! w; |) K6 p! j
do-plots7 L8 s5 X( g3 Z! `
end) d& i e1 z% b7 A* m
) R" \# ~4 e- o! X/ [! dto initialize-settings; z4 x# ~0 P l! B; X# `
P4 a. b J% ~, ]
set global-reputation-list []2 V& i5 j8 P, g0 O' S
4 k2 H" |! `# A1 c3 a- Cset credibility-list n-values people [0.5]
! n4 n% I. X1 H6 Y+ t9 n9 ~ ^( m( } d! _0 @* w
set honest-service 0
& T% ^. x/ p$ t( L; y
' f" T4 R9 f* Z$ s, H! L3 bset unhonest-service 0
: b) X S0 C$ X5 W1 \2 X
2 ]) B) v4 b a4 xset oscillation 0; j0 r' e$ X# m# i- l
& l8 H0 q1 L- p. d2 Q o$ h" I# x
set rand-dynamic 0* F8 f6 t7 H8 v
end8 @% Z, N9 e1 p3 a) J- w
4 m3 u. n. f( X+ ^' j$ C( ~9 M. Vto setup-turtles
7 R4 Y& S+ z6 J3 N6 Y4 Q" b" ^: ]set shape "person" A4 A5 z) @2 e [5 }, D8 r
setxy random-xcor random-ycor! K3 |, O- b$ y: s( k; L# R& G
set trade-record-one []( Z( [7 z5 ]# u* O
3 t" }2 u8 k( z5 Z/ [set trade-record-all n-values people [(list (? + 1) 0 0)]
8 P, W& A* O( G- q: T- E$ B
7 M% R4 v1 y$ y! q* vset trade-record-current []
/ d- g4 R+ e3 q9 c/ @set credibility-receive []
# P% J8 M" ~1 `& x! j! Y: j) @set local-reputation 0.5# `" N9 t/ x4 s0 r$ d( a
set neighbor-total 0
/ O/ | l, G; o5 eset trade-times-total 0- H* \( E0 t' o$ Y# Y" j% d
set trade-money-total 0
& D( b. o: j2 ]+ z* K9 W8 b5 Lset customer nobody5 O+ X. I5 i# @/ J
set credibility-all n-values people [creat-credibility]
% ~$ R! x; p& H6 u0 lset credibility n-values people [-1]
u; A _6 A) g4 [3 bget-color- j4 N& l8 U* r. ]9 J# Q# N) F& ^
0 X) [' L$ D2 i% g9 ^4 \6 x9 ] G0 s; Qend
+ @; M) m4 [1 @$ O: y
- ^9 F. j8 @; x+ ito-report creat-credibility- w$ |4 Y5 `$ `. E/ c
report n-values people [0.5]
' c, Z$ u4 ], S3 T" n$ Oend
' P: h3 [1 k$ s& m4 \- {
: k0 U( E/ Y1 qto setup-plots
9 m& J6 ]: f- \, r, E
* _: A6 w) Q5 y0 _1 s# C- Pset xmax 30
7 n7 z9 f& q% Z& [ h/ K9 S$ b. m* ^: u4 N3 o
set ymax 1.0
- u6 z! I# }) n; j
7 @6 A$ s3 ?7 Q, s: _4 aclear-all-plots
. L# d, D A/ S& k( O% j1 p5 d, J5 T/ O W3 e% }% @. U
setup-plot1
3 f* ?2 K5 }+ E0 Q! F o( S# y2 X, g2 D2 a" b7 N
setup-plot2
/ h" e) R; M0 E0 N
. U6 e; K- [2 F3 G. j, fsetup-plot3
" Q2 v' V! d& t' o1 e7 J7 Qend
0 e/ O+ c! a) P3 x! h* u5 I/ X4 O' W3 g1 Z: y, }+ y
;;run time procedures' w" R3 s7 Z; \" f
2 }/ N: D" ?( ]' M
to go6 [( a: O# Y5 {) K' k$ T
6 U) I8 a: b6 U6 e7 O: uask turtles [do-business]
s/ I& m8 F) X+ l) _# qend0 N) ?6 K4 e4 K% I! D
) j6 v* T) @ K' w5 cto do-business : j) L8 j5 v: Z4 \/ q* P
5 x% o, v. U0 x1 z: i
. _/ E- G7 A& h( d# yrt random 3609 Q }. Z9 e! d& W: j4 }4 ^
# o9 S! Q$ p) {0 Q
fd 1 X/ r; B% B# G3 `) ]
3 r" R" e& I4 y7 @( X5 q4 k
ifelse(other turtles-here != nobody)[
7 f& z) _- D9 C6 x* I2 k: L
( i7 b/ G6 M8 G6 eset customer one-of other turtles-here
8 u* a% f+ F& z) [( s
3 F' Y/ z7 ^, \) u1 q;; set [customer] of customer myself% E* _0 o- e/ r3 w; c
7 o* N3 [' N+ @set [trade-record-one] of self item (([who] of customer) - 1)
6 A6 O* D$ T- O* ~; ]3 \/ `, [; \[trade-record-all]of self5 S/ R0 M3 L+ u, i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( `1 r' L% F: k$ ?2 T3 @% Q' c) ]
0 j* I+ r) W2 D2 G6 @
set [trade-record-one] of customer item (([who] of self) - 1)# ?! g6 i1 \0 C: l
[trade-record-all]of customer7 ^4 T1 c! p K" w( n& |
0 ^/ ~" ]/ y$ Uset [trade-record-one-len] of self length [trade-record-one] of self
) `3 y4 i2 f9 K2 K% _1 L% \) R3 ?
! e/ c$ U$ j% Q3 sset trade-record-current( list (timer) (random money-upper-limit))
" y/ U" g/ Z/ P9 P R% ^* G, W3 Z8 r3 h; H: T/ O0 I
ask self [do-trust]9 t G- A# Z5 \
;;先求i对j的信任度. G- m- a5 a* Z, k$ w' v
! ?8 m. [3 G# b9 j0 ?6 j' h) t
if ([trust-ok] of self); `) H( ^" U# s9 S$ v
;;根据i对j的信任度来决定是否与j进行交易[
- k0 j# r- L- T, r* Q; vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 ~, G) U; a5 m" p0 n7 T" K- B: z1 d
$ N0 Z/ z7 }0 v8 D- a[
% U, I8 M8 X' F( a0 S1 ], U8 ]
0 R a9 V" h0 e( ^# ?( H" sdo-trade
) N6 o5 C" h% l/ l. r% P r% I9 F4 A: g8 Y
update-credibility-ijl) R" u: ]: Q! x0 w4 [& n* c
; j& d( ~9 k9 X7 F- D5 v' Z; p
update-credibility-list. t& p" T9 {/ N
" s1 X5 c8 g$ V5 ^- r/ u5 \' ^+ B% S1 e$ t) p4 {
update-global-reputation-list
; p3 D3 z4 o1 ^/ b" @, n. G, F9 m v# D6 D( M
poll-class/ e! J% Q9 \0 ?1 V
2 @1 F5 \) x. T& Y6 v" |' U1 i z
get-color3 H7 @. W1 D( P$ {1 j! _* O
, K$ w9 r8 Q8 K- ]
]]
$ ~2 h( w. ?5 C) J- H4 g
f0 {$ T) f( J6 G# c! o5 m% y;;如果所得的信任度满足条件,则进行交易
9 G, P0 n. g+ N1 K0 V/ ~3 W: z3 q e* I1 K3 o) B7 z, t
[
$ l5 O0 b$ R1 v! Q* P( P1 b
d+ p8 R* Y' Nrt random 360
7 |9 A: P5 ~, X# w9 l
( B3 U; b3 L: H, l* r# tfd 1& j p6 k$ n6 q
: V+ ?3 v7 Y* t6 W* ]
]
' t' ^6 B6 f- S! _) J9 u# N. Y" W% K) U+ R+ G. h4 z4 x# r, k7 O
end* D, k, ]+ p: B
D: Y& Q" x6 Z3 x/ H6 U( _to do-trust
4 W& Q3 H6 i% A$ Sset trust-ok False
J) f' D& u4 P6 S
0 P: H& E6 u: S; d
* O" O/ w y# t! W) V* f9 {4 Glet max-trade-times 0
4 z" ~* J2 m3 P' k2 q iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# O' [" U- J2 ]! ?) X; o
let max-trade-money 0
, l3 `2 W0 U% S4 `foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 V( r$ x" v0 [. e0 K
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" M1 W. }+ w5 _ W+ F* S
3 }3 Z+ @. m: X3 B* x5 w- ]' g: Z
0 i; \4 E8 _" K" Sget-global-proportion
# _! }% D3 Z& q# `( @) Alet trust-value8 y0 b- m" |+ T, C3 o. k" `
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)
- C8 Y) I2 |& L2 _if(trust-value > trade-trust-value)
" \, m3 o y: M( L! J# B[set trust-ok true]
3 A& z/ C+ _- Q8 L- ~/ L8 \end, v* f+ ~& Y) B; U
0 A( w8 Y2 }% u9 h# v* dto get-global-proportion; W( F8 B9 |7 o+ Y+ l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 c9 p" E: k9 A[set global-proportion 0]3 V! }0 \! L1 X& B
[let i 0
+ n- o! x- A2 @7 y4 d; \: K7 V5 Elet sum-money 0& D: Y4 F5 W N F. v$ V2 I
while[ i < people]
! h4 I" r6 U- S, H1 \, V0 t5 h[
9 S5 e8 f+ ]2 F) E. j# qif( length (item i
# M$ W3 M" a7 k3 x/ ][trade-record-all] of customer) > 3 )) y% x% b* r1 c3 g
[
$ n$ T; Y% U+ ]+ a( k3 ^. Tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# p* c0 k6 h- k2 D5 s& m9 l]; I) H) M1 _/ }
]
- e5 m7 A$ i5 b- {/ X3 tlet j 04 G! l6 ]) E0 R6 q; w0 r3 k9 Y+ C. e
let note 0
% t/ ?6 i# e$ rwhile[ j < people]
) `4 {' T8 u/ o* Z[
* M- O% |$ M. M' r8 x; ^if( length (item i Y& g) o- K/ v2 O* s
[trade-record-all] of customer) > 3 )
5 Y! C) U4 R, a7 ~4 V$ a[
, o4 ~' B! Z7 S; l% O- Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
z1 N; v: ~' N* A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 Y- J, l/ w) W) b0 c$ K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% u `) q2 @' Z1 b
]$ I2 V$ O. z9 h2 T
]) G; r- l; P( v! {: |, X" ?
set global-proportion note% _5 V$ z8 \- T3 l. h( D9 }5 z$ Z
]& k& t9 Q* ?; u. E8 p1 g' g- e
end
* J$ P& @+ p+ H
9 U! c6 h+ B1 y- C* [6 wto do-trade) U$ k8 D& K. U/ G
;;这个过程实际上是给双方作出评价的过程
/ t }2 P R4 F1 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 B* n( M* S' c9 i. Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
7 K3 i3 i* {$ S: O( v( x4 Zset trade-record-current lput(timer) trade-record-current
, E2 C% G7 j# I3 ]% s;;评价时间
5 x, e3 t9 ~0 V$ Fask myself [- Z9 f5 l$ F; N9 ^ B. g# A1 P
update-local-reputation) k9 y1 _, \5 q+ X9 N0 m
set trade-record-current lput([local-reputation] of myself) trade-record-current& E) `: t- e/ D: }. U4 Z7 O
]
`; `/ y. o. u$ f c0 T9 xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 q+ ?: Q" m4 n( q9 D1 a% y; S
;;将此次交易的记录加入到trade-record-one中
& g! _8 p: R2 d4 p7 ?set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ A' g% _7 D1 m! A! g K' m
let note (item 2 trade-record-current )& V0 x: K, _! X* F1 t! ?/ g
set trade-record-current' Z8 x( X6 u; J: _6 S" b
(replace-item 2 trade-record-current (item 3 trade-record-current)) k7 Y. I+ v5 c) a* m9 h# t
set trade-record-current! y; L4 n9 @8 O- u, V6 f, X. q9 V( T
(replace-item 3 trade-record-current note)
: y5 W; V( Z: P: ?; Q7 H. l# f* ?) m7 X% c! `
( [! a) Z5 c5 z$ fask customer [
x0 ~: T- [, iupdate-local-reputation
- f" z9 H' e- S5 e" _set trade-record-current1 p1 n) _7 i3 ~& h* O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / o+ G: _+ Z9 B m3 ^
]
8 B/ f) k2 Q, h4 `8 a% {0 P3 U* n0 p7 K4 `
) U" H; G) `1 a4 Y1 \2 C) d
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 u' W# F8 q( Z: A8 A% C* `/ N! g( m% u% }: Q. v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& m( f! o- Y) i
;;将此次交易的记录加入到customer的trade-record-all中, K) z0 B" O1 ^% p% r" t. W$ t# A
end
% b: l: Q2 Z$ [7 N+ t2 t% L, g+ p8 a) T
to update-local-reputation" r$ x# N. x5 q/ V
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 g8 S7 x; a% `1 X$ _
1 O% u/ p9 l: u( n9 x, }+ v$ w& _* Z
7 h+ P6 k; v9 l$ J8 I. D;;if [trade-record-one-len] of myself > 3
8 O) ~, D, P: u( \9 m3 d% nupdate-neighbor-total9 c! L+ ?' {( r- u7 T
;;更新邻居节点的数目,在此进行
# x' b- z1 P% i7 Clet i 3
6 D$ I( c. o& T' f6 T wlet sum-time 0/ ]" ?6 g, o7 {6 {; T0 u6 h i
while[i < [trade-record-one-len] of myself]+ Q; h1 x$ d& m0 ~, S9 M/ F3 X
[
$ R1 m$ k$ o7 k4 gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 {9 U- m4 h' z% |4 xset i* y9 h' B& c2 f& E' l
( i + 1)5 `9 [1 B, T' d2 ?8 C
]
1 p2 f( X5 `- e, jlet j 3
# N" c9 j, Y( F. |' n8 l5 Q1 ?5 Flet sum-money 0
: `1 R5 W/ G5 Hwhile[j < [trade-record-one-len] of myself]6 e. V! r4 s* R% w' X
[% K9 L% ?$ j5 P H! V5 T s
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)4 [! k! b5 |. S( O2 g' l3 H
set j
. q: y, a p! c: O+ W3 l( j + 1)
4 ]( ` Z3 k, t$ g I" e]8 }9 I3 ?4 F1 ~1 m1 i+ p- q3 J' L/ U
let k 3
5 y4 Z8 J, s/ b5 x( L) }let power 0 c, s% X% G" a: V9 F3 ?1 o
let local 0# ]" w4 h+ C7 U: J' Q
while [k <[trade-record-one-len] of myself]
% ~/ D$ C; F/ g9 `; g[5 `! |# W: a9 t2 |
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 q. @8 Q0 R6 f) a7 B1 f. `$ j
set k (k + 1)
[+ y! \3 ~" G+ L; Q]+ |) w% o' O9 P; ?' I1 R% k/ T
set [local-reputation] of myself (local)( y4 r; t+ I9 c2 U# [ f9 F) _
end
# j" g* l/ _% d% l
0 _% a7 K! A& m6 \! |to update-neighbor-total
& M0 I6 Y7 a5 j7 _# J9 `2 _0 H t' ~: g
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" a1 ? T. T0 M5 H( M
8 y" J {2 \0 R7 `1 S9 H' q+ ?- ^/ P& {: z: c
end
# I3 i3 Q8 w5 v. x7 w* @0 g9 u- d0 Y6 v" J. n
to update-credibility-ijl
' J( ]2 r- b; z6 a5 g8 b; v' D
& |* x4 V- [& k% T3 R& 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。3 b# a6 U: p/ f* T7 Q5 C
let l 0 P1 {# Z. @$ L
while[ l < people ]
+ \$ Z' u* S8 |; w, v;;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
, q. G2 t: y" k$ ^2 ? j R# P9 W[# J7 x% t0 A/ U9 {% D* j: y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)# E' ~4 @: c) k7 a9 c8 G
if (trade-record-one-j-l-len > 3)
; B: U( Z$ e6 f( G% ~) b[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-one3 f9 _8 c7 q% I, `
let i 3
$ l+ x, b6 o0 w, llet sum-time 0
2 y4 `3 L2 ?& ]% Fwhile[i < trade-record-one-len]
7 i, S% } p0 Y3 y6 }2 \* {[
/ A# W9 D3 F$ J# {0 c4 Y9 Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 c% U2 t7 N* c- [! J* N
set i8 U& Z8 | w) d5 I8 c- Q
( i + 1)
1 @6 B8 ~' d8 x9 Y5 o% ?6 b( f] C2 ?2 d) u5 P0 ~! V
let credibility-i-j-l 0
r1 c! }* |9 r; M1 `. s2 A;;i评价(j对jl的评价) `8 m# |3 P/ g4 ^# B
let j 3
: |! m: R; Q, \' z, p) V5 [let k 4
. A' \ R& R) l6 b+ r J3 mwhile[j < trade-record-one-len]9 c1 V! S1 h) f' X6 Q8 c N# @
[" f2 ]& d4 Z. ]0 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: G3 W. f2 l8 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)
" q) B' S& G# H' |6 V1 K; vset j
" `$ F. J! [7 [/ J& b( j + 1)) y- {+ Q: H: h& ^. V
]: T0 W* P& s- U. \- c+ X3 k
set [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 )): B( d) k5 I, |. K+ ^& ]6 W
" ?0 D8 b% S+ J' M6 e q; F$ ~2 }6 Q, j8 l" [3 ]# H/ d, B
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, A8 B5 v7 @6 a# e% j7 |9 x;;及时更新i对l的评价质量的评价
: K8 P+ r- m! H' S4 @set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ @ V' z/ l1 g# Mset l (l + 1)
1 A( ?# |' R" ^! D4 A* J]! F3 P! H$ `; X6 {8 |" X+ N8 h
end, r7 B8 r V8 P" u. K
! N+ p+ C! X, Y. m5 @ A
to update-credibility-list2 P, `% i6 |) l" f- N! F# A0 k
let i 0. i5 ?5 w) C4 t- q3 c: X+ w
while[i < people]$ Y8 G$ r. i! Y4 {! { }+ I$ I3 e+ E
[4 `/ ~& P- k9 X: {" J
let j 0% M# q1 G0 P3 n! d8 P" o/ R
let note 0
2 Z2 C' V z# q- R# \7 y" |5 Alet k 0
: u# L6 q# C, k7 H3 P( ?;;计作出过评价的邻居节点的数目3 I! D' y/ z4 [: d O" Q" O
while[j < people]
8 D: [6 z! p6 }+ n! c$ j9 I0 w7 k[
, G3 A+ S9 h$ n' ?0 q0 Uif (item j( [credibility] of turtle (i + 1)) != -1): M" O3 ^- g" m* b* I
;;判断是否给本turtle的评价质量做出过评价的节点; G2 P J4 I6 C# N" U6 e% |
[set note (note + item j ([credibility]of turtle (i + 1)))
5 z+ r7 O# ^' r3 [% F0 u;;*(exp (-(people - 2)))/(people - 2))]& _6 [5 L0 J \6 m4 w( X% T
set k (k + 1)( u" D& p. a3 Q8 H! r, y; A
]7 h% u; O: H" z" }9 a. c9 }3 r: T
set j (j + 1)
i0 ]+ ~7 d# L" ?]
: n; X7 }' f1 M. y+ Z( f* vset note (note *(exp (- (1 / k)))/ k)
! f& f7 d j( c Mset credibility-list (replace-item i credibility-list note)3 q4 N7 P- r/ r, K. O; z, w; G
set i (i + 1)
' y) g, k7 B$ c3 c]
; c. e: X8 K% K* lend
. ^$ C) }2 h) P! c0 m' I9 ?8 @8 b o+ V, v. \4 S
to update-global-reputation-list, Z2 `0 }% f0 b3 N* S0 P; K0 |
let j 0# |6 Z" o" s V+ W, T) p
while[j < people]/ ] j0 \4 g b9 V$ N7 P" y# B
[
3 d7 q& q c* K9 J% [( {! i4 mlet new 0- Y% ?' [- X/ S9 k$ t0 O1 r$ F
;;暂存新的一个全局声誉
, O) ^% t- ?: Slet i 0# f' _: c8 ]) v! A2 F
let sum-money 0
3 S9 C9 e' v5 O! dlet credibility-money 0
6 ~- W9 O f9 uwhile [i < people]% [4 o, h' ^. \
[
4 W( c' U# M/ U4 X- a6 P7 H g- zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. w8 ~( k \' \( E) uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 b' W5 h% [" V; `
set i (i + 1)
: W" R9 O3 u2 \]/ c1 a! ]1 L2 z7 a/ G
let k 0+ [) G# D& U- l
let new1 0# t+ N8 [3 d8 y" @" l
while [k < people]
E1 e8 {! i9 P y! n7 x5 p[- O" v; U, y0 m+ O1 d
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)
; V7 o( p9 a% ~/ d4 t: lset k (k + 1)3 ~' ?9 l. d0 W. s
]
. G2 J" r; y, }& x6 _7 Rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ p+ a6 i& E) Y/ M5 p
set global-reputation-list (replace-item j global-reputation-list new)* x8 g1 |& X8 U" q3 T' B h
set j (j + 1)
/ A- w4 i+ A j5 x# k$ ?+ o0 c]8 N0 ]) J6 ~$ ?9 ?: J
end# R3 W) n; S) G# c$ z. J
5 ]1 t/ K) y; v# L) ~ s1 x
" D j1 J! n; G8 \( N3 R! j
A- A& |6 L; A' _% M* j; Qto get-color d. P& S( \0 U5 S0 r
0 j( G; }- w+ U1 P2 pset color blue- c' _4 J3 q; Y: |) j v
end
3 m5 @ c6 v. v* W/ ?/ g. I$ C2 I* c C- \
to poll-class1 B0 c9 R7 [9 v; d% V
end* R5 _/ t1 \, `' ?4 s" I
6 ?& l/ n: e" ]8 _
to setup-plot1
; P: w% Y! C* Q- G) s& _3 G& H+ d! z
set-current-plot "Trends-of-Local-reputation"
& e* A) G1 h& ^. l% y K3 q" ?4 }) z, p5 k
set-plot-x-range 0 xmax
! L& W# p) B6 s/ q. ^# T6 S- A$ v1 @( F) L# f% ]1 P5 ?- w
set-plot-y-range 0.0 ymax9 m4 U% C5 ~0 @% c) P& ~
end
n" E' k1 X3 V& ^6 V; }: B5 Q: z( _0 U1 y U
to setup-plot28 m% M: L0 c/ d1 k. k
, T6 i. H$ h; \
set-current-plot "Trends-of-global-reputation"# Q0 A. v1 Z2 A; S6 o, }
! C Z+ U R8 ^9 {
set-plot-x-range 0 xmax
0 G3 r# z9 F, o( @) g
$ _) s0 R6 n" D1 W0 q# q9 fset-plot-y-range 0.0 ymax: O, I" k$ \/ H6 C! ]. u
end e* ?& ^0 ^5 z- Y' b+ S! c0 L
7 P/ X9 I: k1 Z# \8 E! r
to setup-plot3
) H# w' e+ ^ `9 l0 N$ `( o% j" |0 i: u* l$ K0 l. Q$ @
set-current-plot "Trends-of-credibility"; c2 E( s& {' x7 |2 Z" r
2 h; N" D# @7 ] c% B/ H9 e' _" z6 wset-plot-x-range 0 xmax" o+ D% C- ^! l. u. N0 y
- l) `0 B, P5 a7 g! U& N) Y* u' M1 Rset-plot-y-range 0.0 ymax+ ]0 D) E. k4 ]3 s$ t6 }6 l
end
H- ?+ u, T& p" j' d3 j
- ~) d- Z& r7 }to do-plots; ?$ t% X! p& g2 T
set-current-plot "Trends-of-Local-reputation"9 Y" T# I N2 e. \
set-current-plot-pen "Honest service"
* f2 e3 X/ G% p. c3 G* t- V$ Jend9 C, `$ \ [* P3 a; @0 B
' W2 y; d8 e8 Y9 ? h. i/ z
[ 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
|