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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# o$ O2 E6 E; y% K: q1 G1 R
globals[
, v- i2 t- t0 I3 nxmax
0 {* K9 [; Q9 F# g. I1 Z6 @/ D' F# C+ Nymax
( k: ~3 R/ B' o1 o. Gglobal-reputation-list# E. O. m9 H. U8 F2 }. g! P" t
5 J" H0 Y- R% u" n: @; ?$ N;;每一个turtle的全局声誉都存在此LIST中
! g, Z1 R# b0 r8 Dcredibility-list" V( D5 V" R; C U
;;每一个turtle的评价可信度& B0 [) G$ a" [ [. q$ t" O, Y
honest-service
$ d, @! s: M/ Eunhonest-service
; b7 j& {! i6 T7 Q# v goscillation4 N: j, d& t D; x7 G
rand-dynamic
8 P4 j: M0 t$ d8 t# e. } Q]' g/ p" Y6 k u
) n8 V% U4 k6 n
turtles-own[
1 v, _4 A* a/ Mtrade-record-all3 d8 z4 b2 E1 F" I8 P4 [5 N) \
;;a list of lists,由trade-record-one组成
. e9 I' Y# F) D0 P8 M; K `trade-record-one
3 p$ x2 w' V. g* p! V) ~5 d9 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. k* o' i5 W7 L5 |; z' y6 F
7 C9 d: Z) F: ` P) f, };;[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]]
, i7 J( s* F2 f6 wtrade-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]
7 H. ]. u( u* U- g0 S+ i* w0 E: C& h9 wcredibility-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
( _ X e1 _ Rneighbor-total
( q" {5 Q5 _5 I# O8 q" ]0 Y;;记录该turtle的邻居节点的数目
/ O% x3 H; E$ ^1 rtrade-time( M7 C* r! X. Z$ Q; Z1 t
;;当前发生交易的turtle的交易时间8 p% q( k( F7 v5 K1 v' p! g* J
appraise-give; |+ A) U) `0 b! A- c
;;当前发生交易时给出的评价
8 t. S- D: l' O8 V1 ]& ~appraise-receive
) [1 B4 Z5 F$ d( P5 y;;当前发生交易时收到的评价
8 A9 F* M5 `0 I9 s5 ~$ q2 R: dappraise-time2 [* b+ a1 }; B% i6 F0 d! j
;;当前发生交易时的评价时间
- ^$ F" C3 B: \/ n! tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 u+ f- G" O& ^8 |" l& Etrade-times-total4 m+ a3 p* W7 c# v5 E" J
;;与当前turtle的交易总次数6 Y4 b: k( |0 n
trade-money-total
( U J+ P! B+ C;;与当前turtle的交易总金额
M; j& U1 i( ]$ l2 a) H5 w8 S( Flocal-reputation6 I, A6 F3 F$ G/ k1 c! _
global-reputation% K5 `: G: p0 c* S2 t' M. l8 B
credibility3 z; B t( @) c3 ~' l
;;评价可信度,每次交易后都需要更新% t& M8 M; E2 v1 u# K% I
credibility-all8 b( v) H6 y- t$ d8 P
;;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
8 n) C" p+ i' X% p7 q
5 p; g2 w: y5 {) W' \;;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0.57 k; z( u& k! p+ r
credibility-one( w" a9 W- s& [8 W9 u+ N
;;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5 \+ s4 H5 h" `* }# _8 a( p1 J+ ~
global-proportion
& L/ U7 a/ D7 g P$ ?customer
6 }1 E$ E x& Y1 R) Gcustomer-no
7 Z& \3 g1 u4 u: t( ^ A/ z# \0 Etrust-ok
; |1 Q8 C. T d7 V% C; b/ X! Ttrade-record-one-len;;trade-record-one的长度
( ~: g @! P% T: [# e]
3 m" x' l) E0 P4 p6 p- d n$ s7 @- V t5 u% e
;;setup procedure
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R) ], g. L P5 J$ y: F, Lto setup
5 k& b* B; z" G8 T/ r, p) I; @/ x0 }# {- x2 ]! U( k
ca1 w& x+ f: e" g' x1 D. A3 M. b z
! H2 d% j, s% j! J) P$ w3 qinitialize-settings; K7 ?8 ?' z* Y6 l! R, S
$ n1 q# k4 s+ R/ {crt people [setup-turtles]
2 f- {: \; m. i. r# y( l. ^; p& H. P: Y' w
reset-timer. V. Y3 w! L5 F" S! z
3 }% f% \4 ^9 p1 B, P
poll-class
% f- {/ i* w0 z# Y7 f) z! l' q/ Z) F6 {; e+ H. v1 {) @; q
setup-plots
3 k$ N+ \4 j+ c* \( B' ~" ^0 W+ Y% c2 u& V: a' ~
do-plots; c2 w" P- y3 R
end6 ]- s5 J2 V% n _
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to initialize-settings
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: E+ _' ^) a3 \set global-reputation-list []
4 H3 A; ]& t$ P5 t/ Z
' w4 D9 h8 {( ^! I" lset credibility-list n-values people [0.5]9 v; g" _1 v& A: Y9 P3 v
9 {0 w, _( i0 [7 x# @8 k+ b3 I( U0 b
set honest-service 0
3 x$ i3 y3 _1 F( t8 R% U5 W& q7 V8 h5 R0 R( V; ~* U
set unhonest-service 0
; m6 v& x5 o& I* y0 e- }
+ ~1 T9 p8 E6 b+ P/ V7 X) ?set oscillation 0. b& c9 a6 k8 O0 b
+ ^3 w _/ b$ Zset rand-dynamic 04 K; P! I: X# h& N9 Z4 n. v) j5 `8 W
end
& j! f0 j ], b1 ~
& v+ }% M, D" Qto setup-turtles 6 i2 D0 t+ {$ M8 ?% P1 ?, M
set shape "person"
& C1 V: R; ?' q h2 Xsetxy random-xcor random-ycor
# r; F; U, e0 j. R! s9 Kset trade-record-one []" A; N" F: S; I$ M: z2 k0 j
$ @0 e5 n4 g {* M% K! ~
set trade-record-all n-values people [(list (? + 1) 0 0)]
- O/ K7 h8 X. K# h! B; _; v6 C' o! p
set trade-record-current []. f3 o! J5 u3 s' t+ I- I/ J
set credibility-receive []
/ _6 @' w+ H: b- @$ M- J$ Fset local-reputation 0.5( k' ]. Y) T8 ?" T7 m$ K' m
set neighbor-total 0% M3 e( S' \- i
set trade-times-total 0. f6 r" E6 _/ d7 p; j) a
set trade-money-total 0: z1 M: [ C; w
set customer nobody
/ P9 z5 A3 I2 ^7 S# z Eset credibility-all n-values people [creat-credibility]# F/ A. U( Z2 k
set credibility n-values people [-1]
' ~) H. ~" Q, k" X( iget-color# e' C3 w7 e5 f7 a: x7 `
& |# P3 x( N# W/ n2 t o4 pend
( B! U: K b. p; y+ y$ ]; J( v) t( X" u8 n( x' T9 p, d
to-report creat-credibility
# H2 X h- |% _' J5 z- h2 nreport n-values people [0.5]
. t0 A- Y) A5 l4 T) Tend
- {, d4 ^3 {2 w$ G0 F8 `
9 m+ a& i8 \) k8 r2 B" uto setup-plots
# m1 y8 H1 P S- P* B4 i! y% N, I" P4 w5 V+ r3 X
set xmax 30
; e$ x T* _2 M! x; q& Z9 M
8 Z5 q% o4 _3 f* ^- B1 tset ymax 1.0
, A- {; o7 l, m
& f" j* ]: l4 F! Q" E Wclear-all-plots `+ m- E6 S/ [2 s0 Y4 X" s
6 ?5 \: t, y3 J$ O5 b( d* t. P
setup-plot19 y# R6 V: \0 \* G# U) f. Q2 O
; |! A1 U+ ?1 b6 \5 G
setup-plot2
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setup-plot3- ?' J8 D {& c5 C) d
end: Z) o% U/ c' Y/ s" s# ^
0 |, F, R0 C6 S' Y' s6 ]- r+ V;;run time procedures+ S; j& n& E6 R! V L
y4 f3 m# o* Z4 X7 K% i/ |to go
4 E0 z @" Q; I; K$ T0 v: s( @* X
ask turtles [do-business]" z0 B3 s$ G; x" h9 ^7 J: n
end# v7 [5 ?6 V. l* w8 f# }
& f) {; ?+ X9 @# \8 r" q; Bto do-business - c# U& f6 V% w2 E1 V. ]( s
% m& t% k: B0 v2 w1 J. k+ Z! t
3 A8 w2 A& m! N- N6 m
rt random 3608 C" ~; r# J* p' p
: Y) i9 @0 i9 D5 |# ?fd 1
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: ^6 }' ^! M# a. e' @% `ifelse(other turtles-here != nobody)[
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' q: d/ ~; \; p1 o0 E5 |set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)* a) {" g: _) D# `1 H* l
[trade-record-all]of self
5 K& H8 o" w9 h/ Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 [( M" U0 N! c s! j$ y3 J. s" z5 w2 J' w
set [trade-record-one] of customer item (([who] of self) - 1)
2 i4 G5 U& l5 t& S2 T+ V[trade-record-all]of customer
+ p. u" W. k& O+ w
/ Z, P5 O9 S/ b- L2 v, s, _set [trade-record-one-len] of self length [trade-record-one] of self
3 _+ D6 H$ M0 @5 L
1 \0 M; v+ A9 W1 ?set trade-record-current( list (timer) (random money-upper-limit))( B. m+ a0 I- N
$ Q; \3 o: J1 L$ s( V0 _, n5 Wask self [do-trust]% X) J( R, u/ M
;;先求i对j的信任度( ^( ?- }4 R E# r' `
3 y- z: b( ~1 K1 B- oif ([trust-ok] of self)$ @5 E6 j* ?6 @+ O/ r( D
;;根据i对j的信任度来决定是否与j进行交易[
& Y i- c: H- Q4 T; Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ x% g2 U0 [& i( E8 T8 t8 G
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[
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6 A* K: @* g& f) ^do-trade r7 Q# c& X+ B
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update-credibility-ijl! C, w9 L) t: Y
% M0 |- S8 g3 Nupdate-credibility-list! y) d$ N+ R9 T% { i
7 T: {' w3 o9 n& _* Y) y. p) z$ P4 ~
6 E' D! P$ s$ W* n; ? G
update-global-reputation-list
% [# M' J9 w1 V+ A7 x: |! \; } Y% k/ L3 C4 m
poll-class
5 o' |- J* E/ _* j2 K- y: P' a" A+ O |7 i
get-color) y5 f/ L5 t: f! r
- G1 [& x: n& c/ w" N]]
' s0 j6 G% `0 N- P+ L
9 w% k4 z+ \6 ]) n' [. T, T* d0 S;;如果所得的信任度满足条件,则进行交易' N( X2 [: p" H7 ~ @$ A/ h
0 e) U, X+ Q8 m% O
[+ y7 p) |+ A! w4 I( a4 B
4 G) u. D1 a5 [rt random 360# [" @+ }9 ^; Y2 |, M. h- P* D I9 Z, x
! D, v% v, ~& S
fd 1
4 f3 m7 {& j( B( T6 ^2 v$ m' h% j J
- w6 t' Z! }* H& C+ @4 l]5 x" K$ ~; }# y. n& o
, ~; F* C% A8 ?: t% z+ A L) Aend
% F7 X9 n# i: U. m* D2 g' ?
/ ~* @* Y7 A) E, P. Q% o4 @# e9 mto do-trust 2 ]& ]1 e$ O; X4 y7 Q, _5 M7 S6 v
set trust-ok False# J k& j* x! A$ e# o9 m* ^" K9 f: g
' `: W, u1 J3 c5 S3 {6 j/ d4 X! a% A7 X- t
let max-trade-times 0
3 {* t8 N: k& B3 g" j/ j( ^0 hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 N8 `3 h5 E8 N" C3 k/ d5 r0 V9 Q
let max-trade-money 0
0 j. A" j c# H6 E3 I. S. z, `3 s+ Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( J7 j0 Z5 |8 w8 o( C
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 C6 J2 u* a3 t- a+ _
* B2 Q2 r: F6 X" K. J
5 I6 F( o0 |6 m% R; j. \get-global-proportion
* V- P+ i; b# I! f' Nlet trust-value" M P* T$ a& `7 i
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)
4 p0 b: B1 N8 v7 h+ I) h) rif(trust-value > trade-trust-value)
" w) Z. _! |! @8 A7 E, q1 k: V[set trust-ok true]
$ a( b& l9 p$ Y5 fend; C# a+ o3 |5 b# k* y5 K
3 r; _( I3 J1 A8 y% g$ Kto get-global-proportion; x# N j' |( o& M) x. m' y0 [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 q4 \3 a7 b, ?$ A& J$ F# Q- }- t
[set global-proportion 0]
7 J' @# F7 K1 | W. J, E[let i 02 `" Y' }( S" L' ~3 V
let sum-money 05 Q4 K% ^/ d7 {" p% T, { Q
while[ i < people]
* c) C9 N6 F! h; y b3 _2 r( H' }[2 z* J5 Y9 _& D" W. L2 X
if( length (item i d; K/ c. H8 P6 {8 f
[trade-record-all] of customer) > 3 )& l; I4 Q2 l" E4 L7 W0 s, i
[
: l8 C: Z! D( [4 _: A& Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 e4 }& x0 ^. T( ?- W i]
/ t; T7 w, \' M]
( u8 `; H: L& F2 b vlet j 0( L9 R% X7 c1 K; U
let note 0
9 E* s' u0 V7 m% @. F1 Bwhile[ j < people]
* F7 w0 s1 u( ?! g4 y% B[
3 _3 [1 H0 n/ G* J5 Oif( length (item i
: {" n: D# l; y# c3 H. _# F[trade-record-all] of customer) > 3 )
9 Z9 }; [" R4 ^1 @2 t. T$ a[
. [% G; Y* Q- v k+ Z/ xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) Y4 y: V) Z$ h5 x' u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* U5 |" r. d" D F4 j- ~
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] ]2 N4 d0 V6 [: w/ o
]
4 G, j1 ]( D2 g]2 i0 m$ j# ~, i+ i4 s. E" [' X2 g
set global-proportion note) y! L6 ~% k) S4 R* @
]' t3 {1 {- ~- j% x3 ^
end
# G: k$ b1 I% o B( c ~, p2 ]2 H. d; L
to do-trade
/ A7 a6 Z: O$ O5 K3 k5 G& c;;这个过程实际上是给双方作出评价的过程5 X$ c* X# s9 z8 O! H# _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ M! E% {) G `; f
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: t+ P. m# F: ]
set trade-record-current lput(timer) trade-record-current
$ ]4 d3 [ a% G$ y8 C;;评价时间' v, [4 V! Y2 }! a& L3 G
ask myself [
, e) b1 ]+ L1 |+ Q4 Vupdate-local-reputation8 }# O& ?- {4 O8 J
set trade-record-current lput([local-reputation] of myself) trade-record-current" q8 w+ K" q/ |6 W$ W
]
! O l% S A0 T; \' `/ Q' B. M* ]set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* P0 A# m! F, c, b+ s;;将此次交易的记录加入到trade-record-one中
7 E# O. E- R, y8 T; Sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 B- T C7 Q% w- }- X' Alet note (item 2 trade-record-current )% S8 c: T7 n$ a1 l8 f
set trade-record-current
9 v% d& [+ F, o, C1 _7 v. a(replace-item 2 trade-record-current (item 3 trade-record-current))4 t2 [- _; w; J) F4 t
set trade-record-current
( b- }. P6 T6 q! U(replace-item 3 trade-record-current note)
( ?) {# n% q' u( J& X d
. @0 I# D6 L X1 ^) L* e1 s3 d3 c( _0 P" @" O% J% |1 ^8 ~
ask customer [# u* B9 X/ ] K* m& R
update-local-reputation( j. g. G$ u- d `1 p$ [; Z! v
set trade-record-current
9 ]: |& u Y4 ]6 r2 E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
/ y: h- \# B" y0 A6 B]+ x7 r3 I) \/ A1 n
4 C1 C( ^" g1 |' Y& `* g
: t, q- s& r- ~" j! Qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. c7 \1 B+ J) t8 p( K5 H3 O, R2 T
; I' q/ Z u# @
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 |* ]& H. x- G- j& k- d
;;将此次交易的记录加入到customer的trade-record-all中% c5 E* e4 P" a& J8 Z9 P8 Y# w8 J
end; f, o. W+ |* f# R5 v T
# n+ U: h' Q* l& d! hto update-local-reputation
8 ~& |' B( }5 Rset [trade-record-one-len] of myself length [trade-record-one] of myself
@- B5 r( q2 Z) B, J1 g5 o
2 A6 F' a1 c% Q
/ [. L$ Y' t4 Q* I( E8 H;;if [trade-record-one-len] of myself > 3
3 [1 m/ ]5 L2 m W( n9 bupdate-neighbor-total
! E& u; B1 S! ^* I;;更新邻居节点的数目,在此进行" @: x3 J7 t7 ]% ?1 R( h
let i 3
" z9 L0 l/ e+ i, v& Xlet sum-time 0
& J8 v1 j! h! F. `/ fwhile[i < [trade-record-one-len] of myself]/ l7 E: N% p+ y- c7 ^5 k7 g8 @
[
U+ f# y: z7 T5 b* h5 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* i0 h8 V- Q7 G0 g/ F' K- Z
set i
6 }8 L2 o6 L1 k( i + 1)
4 Y& {' L+ a: m" p5 ?( `. d]
/ G% K7 d" V% [let j 3
6 a( h: K+ V( ?* [/ Vlet sum-money 0
' f( v6 o2 q2 @9 G# s* Z' Y$ A+ Fwhile[j < [trade-record-one-len] of myself] ~& z" V0 j5 d* T
[( V) ]. g- e0 Q5 c/ u& M
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)
7 l3 |6 S7 M6 r6 m- j5 ]set j
: _ O2 H7 C( E2 a/ n1 Q( j + 1)% W$ i0 b/ f( |0 ~0 g! l. y( W
]
9 [" ]' e' W; t5 C4 c# flet k 3: u, G% n7 x/ F+ M3 g) S6 L3 ]! Y
let power 0
# ~5 n* }4 h, n$ X/ ilet local 0
9 f Y' A) j2 Y( T: _8 pwhile [k <[trade-record-one-len] of myself]; F6 \) \( I* {$ J6 a+ m
[7 p; s' i3 T) U
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)
- T# R. Y: e: D/ Vset k (k + 1)$ x4 i6 |/ T0 {. F$ T! }) U
]- S( g2 i Y- m' w9 f- N% B1 B
set [local-reputation] of myself (local)
/ r$ ^( c2 i& E* P4 e4 gend
# o+ _5 |' p" Y' i) ^- \9 M0 {, M1 t6 l! n$ Q, P8 W% q
to update-neighbor-total
4 s8 d+ H" l ~4 j1 z
# t# W( X/ }6 f+ x7 [! Z; a) ^' Y0 R( rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, }* G P& N* J* B. `% A' f
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end* S7 d" \1 {2 d) D+ D( @
7 f W3 r0 `4 V7 y5 [to update-credibility-ijl / K0 W$ |6 a& [% h. w1 [2 a
9 B) |- V$ {# l& y/ C. _: V;;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。
: A- _' f3 K5 A4 plet l 0- S* ?) Y4 |, |$ O7 b
while[ l < people ]
' H4 k/ i- S9 K& a1 Q! 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 H; _+ x! r* f; Q) Q
[
. N4 P9 n }3 x4 X9 ~3 Alet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 d6 P8 v4 g3 k2 O, \
if (trade-record-one-j-l-len > 3)' O" B" H- ^; P( |$ H
[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$ R/ v7 H7 _/ ~& o
let i 3# P# N/ X1 e5 N0 W
let sum-time 0& l0 G+ z! x5 t! q
while[i < trade-record-one-len]5 C- g# [" l) i$ Z
[
& ~; ?0 w2 k7 sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! N7 M! Q9 Q1 ^' A5 K l) K% n
set i
- `4 i7 b ~3 p; t1 \( i + 1)
* A v$ }) k9 [4 P]+ [& U5 s1 X" a+ N7 _" \6 C3 D
let credibility-i-j-l 0& Z2 u/ \6 t2 m
;;i评价(j对jl的评价)
* y2 {2 M& W& k" Z4 a4 alet j 3
3 C; I2 b+ m) A# M% @let k 4! V2 m, W* X7 g" b- T/ t+ @
while[j < trade-record-one-len]
5 L$ A! a g* v& T) @& _# V: j: s[
, H- H7 A3 I/ q# a* w! m3 Iwhile [((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- Z# |: H; v9 ?. c* [2 k
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)
* R! L; s( a' T- `8 vset j
3 [9 C. T% A H: ~( j + 1)
( { E" h, O0 x% F1 |]
! @2 z2 b0 K8 J+ ]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 ))
0 q, Z0 Z7 Q) i- t* o9 e& {, w: D+ B8 b" m
1 L. r! R' ^9 e& g+ y% D6 o, ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 O4 F: i, U. [$ d9 Z ]- [* @( @ g;;及时更新i对l的评价质量的评价$ y9 |; S/ m2 ~5 |
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, ?! S, e1 Z |4 H( E- Yset l (l + 1)6 H& \& r1 o- h$ {; A1 d/ j
]% D Z. T4 s3 z6 s* Y1 H2 h% l
end
$ A, P, U+ Y' `
8 d2 X8 ?: q8 K K0 xto update-credibility-list
/ l( j5 ], y8 Hlet i 0
4 p1 d7 X' ]8 W$ o9 S7 }while[i < people]& i2 j( T3 h6 P2 i6 |6 I/ |
[- D" ~6 h+ T5 R9 E2 o
let j 0
' n- I) Q1 ^& O* D- l. K2 o3 dlet note 0
" H8 D5 |- Z5 n. x2 L2 Vlet k 03 D" n1 q. ]2 F+ \" Y
;;计作出过评价的邻居节点的数目2 u* |% r v3 X9 Z& [
while[j < people]2 s- H0 k& |1 U! j/ s% d: U+ S
[! Z* o* i4 X- @# {; p& G
if (item j( [credibility] of turtle (i + 1)) != -1): z) n( a! s+ F$ Q; H1 Z, R
;;判断是否给本turtle的评价质量做出过评价的节点
0 u, n- R+ K9 \! A' a @3 R( A[set note (note + item j ([credibility]of turtle (i + 1)))
0 O, @8 ~ A2 k1 e;;*(exp (-(people - 2)))/(people - 2))]
4 M V, m- _+ i6 z4 n7 ]# R# aset k (k + 1)! }# [( ]* O) j8 _
]
. N" G1 g( M/ u0 z. u0 O8 y0 Uset j (j + 1)
- S- K) P/ y/ ^8 X2 v' x]
7 X3 a$ J, S% z3 e) ]; D. A: Wset note (note *(exp (- (1 / k)))/ k)6 Z% W \4 H+ W
set credibility-list (replace-item i credibility-list note)
7 l. h+ U) }- N- M; g/ Uset i (i + 1)( c+ c( o w. I( ~
], y6 z( r3 j b; q5 N3 v' ~3 S% M
end2 R% x- |3 \3 K# Z( i1 t l
f5 B8 f2 S3 oto update-global-reputation-list
" I' ^& x. _; Y( ^* Mlet j 0- X; b g' ^9 X2 k! K2 r
while[j < people]
/ P+ ]: @( g$ z3 H9 E[
9 K$ L- C, }+ l) a, Z) klet new 0
, V# e- O0 p8 |! I;;暂存新的一个全局声誉3 ^1 g* M. C: }. H( o% L1 w
let i 06 g! |& s* P( i
let sum-money 0$ Z9 U8 S4 P) _4 A
let credibility-money 0
& \! j& R- y K5 P+ }. ]" ^while [i < people]
3 }% W2 T+ c2 G[1 o5 x. N& o# F' x Y7 f9 ?' h
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 O' ], u7 c1 J. r2 i
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& H8 R q6 U& W9 T
set i (i + 1)
2 k0 o/ x* W1 j]
: m2 ]; i- ^7 S2 Blet k 0
; w8 j# Z3 p# {let new1 0
2 d; h/ ]+ r6 G$ V. Swhile [k < people]( ?7 D+ T4 |1 r9 ^3 N
[4 y2 g* W4 B% R& E* l. T
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)
$ c% c" f9 O4 U' @% B) `set k (k + 1)6 @) q0 P- j3 e7 Y
]
' W- }! P0 U) o4 S& e* Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 Y- u$ f) r* i! \, v& Q. F
set global-reputation-list (replace-item j global-reputation-list new)3 A" h+ O) d( s- U1 Z: O6 `
set j (j + 1)- z; f: C( u2 X& [, Y' A
]
% U9 v* m- ^$ A% ?- K1 mend
" Q" Y4 c) E( Z9 q4 D+ ~- j/ l1 O8 Q1 O+ f% `0 _
" {7 ^2 F$ w ^
& I4 `5 @% q+ h; Y% ]6 v% Dto get-color1 M' }7 D0 c2 e) y
4 L2 N) X1 r7 t- a* I0 c
set color blue @- f4 t1 ^4 `/ i
end$ e, |8 ?# q! }- v
- z9 e% P7 \9 o1 H5 |$ D. X
to poll-class' F5 C5 m. Q9 k6 i# [! L \( D5 d2 m
end6 k+ @' X$ R( z
E0 T: M& u- A3 |. Y6 V Y
to setup-plot1' y. ]2 N8 F; J8 W
7 v. I& `7 ~$ G+ R& p- _% t3 M
set-current-plot "Trends-of-Local-reputation"2 |4 @) ~2 V6 H% o
: j2 `0 j3 A6 B3 Y# e zset-plot-x-range 0 xmax
. |6 i8 G9 A5 W* c6 v# E
9 C, r% O- v3 L; ?( A# W; pset-plot-y-range 0.0 ymax! H; ~5 I* ]* P4 i( r
end
* Q; V3 _! }( ~2 A( f) J6 b5 }5 `7 z
to setup-plot2
2 U/ M# J3 G, U: c/ H G) N: {2 I! N
set-current-plot "Trends-of-global-reputation"" O4 T% r9 o6 N0 Z+ T
! {4 f4 Q% B1 u; J, {set-plot-x-range 0 xmax
9 K3 c" L1 }5 |" o$ H% ~! L
. s0 p3 Y! `! p/ yset-plot-y-range 0.0 ymax7 m4 s+ |0 i8 x
end
; i$ L4 S; W4 D- p& g& U/ V% P" k h* K% x
to setup-plot3' j3 e2 |+ @9 c$ v
# o* O' s' R/ x2 L3 Q5 Rset-current-plot "Trends-of-credibility"& ^! B3 U7 A& s/ l) Z) C" `& j
1 K" [( r- j' i" Z0 S+ o
set-plot-x-range 0 xmax& {: M% u! \! z
3 S5 U C! _2 D! s' {" d
set-plot-y-range 0.0 ymax x A( p7 Q9 r) e
end8 p! }5 h* C& O- B; k4 z/ r
! b N% z Z* f- I1 i: M4 } zto do-plots
9 a. X* J! L& s+ \! Gset-current-plot "Trends-of-Local-reputation"+ l+ M: l |) `9 o1 e$ B) j5 v6 Y
set-current-plot-pen "Honest service"
) q l' ^* m+ I/ l, L2 oend9 E8 g+ `" ?5 b! E" S* g3 F& \! v
. a: f% j, ~9 ]0 M) g[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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