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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
1 w7 r/ w! j( L! Y' V( S: q6 qglobals[
1 U" ?" P' Z" O& wxmax) w& Q5 l" F' H! K& D7 ?3 G
ymax
2 a7 [7 b* L- vglobal-reputation-list) ~2 g. {# [4 z7 Y- i
- L# I4 E# ?, H# W: @$ }. e& p2 ^' c3 q;;每一个turtle的全局声誉都存在此LIST中* n' [6 Y y* [% I) p
credibility-list6 m0 W! D' {6 |6 `1 E
;;每一个turtle的评价可信度! J1 @' a5 y0 e, q
honest-service' o* U. }0 V9 N; Y9 l
unhonest-service; J( K( c/ V: @( {2 ^
oscillation
- ^! A/ ?/ E3 {& {: ~rand-dynamic
6 ]& P. V' o1 ?2 \+ H1 |& n]
0 @5 z- I9 C7 N& n& G& \
1 T/ F4 Q/ L2 H- b |: ?turtles-own[
7 m# ]0 O9 h& |+ j( Ntrade-record-all
3 D5 V5 A. @; L5 B;;a list of lists,由trade-record-one组成* X( a: k6 { X4 C( @/ T( ~
trade-record-one
" y& r* u. K, t. e7 R% V;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: N& m2 Z3 z9 A9 u( J9 T
1 ]; n- ]) f: d" F y
;;[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]]
4 d8 p/ u- W" ]! X& t. Strade-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]
8 p( t& V5 K9 @- Y7 W, b* H, Gcredibility-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
/ }5 q* v5 S& k- Lneighbor-total
0 h& p1 ^6 k: x;;记录该turtle的邻居节点的数目# x, y( a" d m! h0 W% s
trade-time
" ]$ y! T+ Y. r. u1 @1 W- _;;当前发生交易的turtle的交易时间
+ ?; t( X; | i6 w3 P% T) @appraise-give2 T- q7 H$ V( W+ i9 @/ n' {& ^
;;当前发生交易时给出的评价4 H- r3 r8 o7 V2 J4 ~' k
appraise-receive
+ i/ i- o3 m" | a. ?$ P;;当前发生交易时收到的评价/ m+ n8 t" ^$ n0 b4 x: W$ e6 x
appraise-time7 {. ^- Q% e: z' r, @' b
;;当前发生交易时的评价时间5 Y7 ]4 B" b. M+ m; H* K
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) B* q! h; v! H1 F) T1 J' n( \
trade-times-total) ~! O E7 Y8 h2 a
;;与当前turtle的交易总次数, H: a; H' O- I8 m; ~9 F; a
trade-money-total+ h: t- P5 y; c0 U& s! R3 N1 v& \
;;与当前turtle的交易总金额! |5 C. G. {- V- s* Z! r
local-reputation
# p9 }1 g6 U3 q- F9 z% D& G' Y9 xglobal-reputation
. d% N' Z. f$ U. B( P* J5 x* jcredibility
, l0 F9 C/ |4 \) I;;评价可信度,每次交易后都需要更新
1 x/ O2 e, |9 d$ D) E; hcredibility-all
" T1 h% a0 ^+ Y3 u1 v0 ];;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/ H: B% f' r C1 j9 Z, j
E: E! b1 R2 @7 @7 C6 N) J
;;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
" ]2 M0 ~& L7 h! o6 U( e# l! Bcredibility-one3 C5 ^; E* M5 C$ j e
;;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% S! N; o% W6 O
global-proportion( @" _3 \% ?' J' b$ Y O+ F6 b6 @# N
customer; {. b' ^2 [0 C$ V8 s5 q
customer-no' U2 k5 p3 w+ L2 a% X( [9 U
trust-ok
0 ]5 P! a! ?8 k _trade-record-one-len;;trade-record-one的长度0 s- ^1 ? q" a. B/ d$ x- I* }
]
) A7 N& O% V' d7 W
0 y7 r' V5 i; E2 b J+ m2 e8 w' J;;setup procedure8 F. \4 N4 H; a- x7 ?! I
- J1 }+ v$ G' Bto setup* i1 C9 p- M/ w! a% Q, X
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ca
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initialize-settings
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crt people [setup-turtles]/ v, V, }' u! M2 u; Q3 N* X# R. w# V
( t& q( x1 i: U" u+ @% [7 E! U
reset-timer
4 |, F" T% Z) m% V
9 ^" p# H" U9 D5 p3 s9 C; npoll-class
9 ]8 q' d4 A6 ?0 f6 m h' o% s
0 L& _" r# J& U0 S- k$ ^- {setup-plots+ G. e1 X( o# d! o7 |, L0 j
I* Q8 V" W4 n7 Z6 b( z Bdo-plots* M9 ?7 Y+ x9 c) C
end
' c1 u* `! [8 k7 [5 ]. w# x9 g1 n' o( c8 M0 X$ M- @! P! ?7 M
to initialize-settings& s- Y# W1 N3 u6 ]1 z, d* j0 k8 C
( w s* \5 L4 ]) x( r$ ^set global-reputation-list []
3 c7 g5 k. M6 o) e9 j) Y
1 T2 e' _& l2 A: ?# Gset credibility-list n-values people [0.5]
: }/ q% \: t" ?1 M; D; \0 c3 A: u0 w) b
set honest-service 0
2 ~* H" b6 V1 y/ x2 Q3 e& \% i8 a$ D7 I! U7 A
set unhonest-service 0
# {/ D8 F. J* D1 y
$ |8 z: a- c0 t% Fset oscillation 0
1 {7 y: W& O! G m4 H. Y! ?+ ]0 ?3 H4 h- X5 }8 s
set rand-dynamic 0
& l5 @# g: o2 ?. h. I; }. Mend' ^ W: j8 ^2 ]& p% Z
& }$ n& N5 `, s. u2 E
to setup-turtles
' L3 S# ~" @" t# h- iset shape "person"( b& f6 L' y9 q k" A
setxy random-xcor random-ycor
/ d0 x9 ^2 I X. k( O$ kset trade-record-one []
; N0 @7 M' V, S' r. j8 y$ b
; L* O( x/ `* J: P5 Aset trade-record-all n-values people [(list (? + 1) 0 0)] ( C/ ?* ^1 U$ u; X
5 c f P: C& {0 A$ }set trade-record-current []
6 _& K1 g, q* h, Dset credibility-receive []) i0 v* n/ Y: T0 G& s- ?, y
set local-reputation 0.5
' T' l s' a' I, S: b1 ~set neighbor-total 0
$ ~' j B0 u5 l+ E/ H6 h/ a. gset trade-times-total 05 h1 `& x6 L+ Z7 q+ d. s! W
set trade-money-total 0: ~7 u+ @0 E% A8 q7 t- F/ ~
set customer nobody
$ [+ d+ Y6 v7 f. Zset credibility-all n-values people [creat-credibility]! B6 [1 F5 Z6 y, b( |
set credibility n-values people [-1]1 G8 o, t9 C3 q, S5 `) f2 {5 D
get-color
Z$ E' B2 P# P! G$ I; q1 q! r8 R/ q: I0 b- i9 _% T
end
8 K/ ?: N7 N3 x! g6 l1 k# N6 k3 G% f9 ?" c" a3 u# j! l; L
to-report creat-credibility
# h5 R) q1 u) M7 F$ M1 w* k8 l5 _3 Zreport n-values people [0.5]
& ]# K+ r* G+ @- v& `' S) b- @6 vend
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to setup-plots
i' \ T% U6 N+ r* E: m6 ~9 K
set xmax 30
E7 }6 U- B3 G9 t( s( E+ Q' l: Y& R; ~/ ^+ N; X3 B
set ymax 1.0
1 z2 i# z) K. O9 j5 }' y5 K/ y/ f! z0 H. a1 h: o4 }
clear-all-plots8 j# d2 _! t' h
Y9 \# B$ | d& A! Gsetup-plot1+ _# D7 l- l4 r6 n
) j3 e+ X J- e- ^: ~setup-plot2! h* E3 q' ?: W- C& T5 ^
7 ^$ g4 V1 ?5 p' v
setup-plot3
' r* j4 o4 F: U9 u+ Lend. s; [ @& F% t" {6 T6 c- e
+ ~4 T- ~5 O8 c+ ~4 T
;;run time procedures
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; }2 e3 @( U/ o' r+ D" _% Rto go
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( X6 U4 U1 h- S/ d7 E7 E$ Aask turtles [do-business]
3 J$ _ @$ K9 ]# T8 Y& f+ \" \5 Send
1 O @/ w; }( P$ Q( \, F4 Q, u/ c+ {- L% r8 s
to do-business ( l. A9 n+ l" }- u/ }
2 C* O2 [, b. i$ v4 b
! a, e+ Y* |: k2 N- _rt random 360# k5 G9 p b& v' g0 `( ?$ Y
6 x b9 Z. ^4 ]6 M! j) m
fd 1
1 Y( Q3 y8 ~ ^- Q2 }2 s2 h
) p% P g/ n# @ifelse(other turtles-here != nobody)[" o! I. i w' }7 }% ^% |
5 s# g, U: k& E
set customer one-of other turtles-here8 h C D+ a7 n! z0 W" b& A
& f/ l) G5 G b4 ]3 D7 _0 Q;; set [customer] of customer myself6 I4 g7 o* E- W0 H* L8 K; W
7 x1 v) ~3 X# V! `3 ^) b# ~set [trade-record-one] of self item (([who] of customer) - 1)/ h, r6 Y5 ?* d" N8 W
[trade-record-all]of self
- f1 J( U& Y, z+ f! g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. S6 F$ `. x0 j4 `9 y. g
4 w R/ o7 M( ]* g
set [trade-record-one] of customer item (([who] of self) - 1)
5 A: X" [9 D3 N% E$ U, M. @/ M[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))9 }: w' j |+ L0 x! X/ L7 J5 c3 \
1 U" W7 N A+ i, D) A- nask self [do-trust]
# _9 a: l2 ^8 t% G+ ~;;先求i对j的信任度 o# V T, L1 M- C- e
7 P; s, O6 y7 W" z) ~/ S7 i8 wif ([trust-ok] of self); U. Y# _( x8 C5 V
;;根据i对j的信任度来决定是否与j进行交易[
9 X& J |& Y( w3 ]' ^6 P; Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[+ u2 I5 A3 P! Y y
6 W7 y5 V/ F0 Q7 c% W2 C
do-trade9 s4 L0 v. X" ]$ n) G& r
+ [6 g- J! N0 i, ]6 g3 x' r) uupdate-credibility-ijl) e3 b& o# ?8 \ ~
+ d, n0 N! W3 ~0 Gupdate-credibility-list
' |' |$ g9 s, P4 Y
$ ]3 }, v- U$ U1 m( Q+ k/ r
% ^) S* ]1 j: K; Dupdate-global-reputation-list
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poll-class
y( w& K0 T9 h3 ^, g# R2 {* `. N, O' C- k
get-color
" M1 ~% U2 N% F
q5 D; p- `. L0 x2 ~6 i]]
: k" F! w" D+ t) R9 m
3 m# g7 X9 ^- J9 E: w, g6 {; i% t;;如果所得的信任度满足条件,则进行交易
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2 l; ^; ?* M9 l- P: K9 w0 `: I( A[
2 a' `( A2 K$ v3 u! Q. A% Y g
% t- \1 z: T/ L2 E- nrt random 3602 a9 m V4 C( F! Y8 P- @4 H
/ m. Y2 {* C7 ?# R5 v
fd 1
" n- g$ U6 \! @8 ~/ t' n z) h+ m/ o0 P( V l+ S# d6 j% M% W: N
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$ Q8 k: c; w9 Zend
Z! @* e! O. N; [, D- b8 m8 E6 ]
$ ^# G# @' ]' X+ `8 Eto do-trust % B S' u3 b; p
set trust-ok False, A$ V4 A9 N* z; P. n. }
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4 _ a7 x1 r8 b: J/ M& U* z; k- _ r
let max-trade-times 0
/ S1 \" @" ~" }. ~9 Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 \3 }5 H: ^3 x; W4 S9 n' Xlet max-trade-money 0( A5 X" O, F" N- s8 b: b2 _- ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 Y8 M7 v# o& _# ?- s7 `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& B1 m+ s" c1 k8 W3 C- [7 q4 h$ H5 o( g
3 q# E8 p% a* x0 d' j+ J
get-global-proportion
+ p, ^9 h0 q' d( Xlet trust-value
- A3 r5 Z& k1 S, _# r# T$ k( X& jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list): i8 L) @; l8 K) e" j; j* W8 ?
if(trust-value > trade-trust-value)
6 h: v" Z* k5 e5 o: [5 A[set trust-ok true]) G. E# e1 U( t0 S6 S6 A
end: P( x+ g( O( o
) i7 B. k8 J/ x; D: N/ G" D0 W
to get-global-proportion1 E1 g. D/ t, Z; \8 u, ?$ N j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& V3 p6 Y" d& S3 L[set global-proportion 0]
2 B6 ~0 z' J$ ^8 D4 y1 a! {" h0 n[let i 00 `4 Q" s9 Q9 x6 q) j
let sum-money 0- K- H5 l ~4 ]+ e7 j
while[ i < people]; E" c2 M1 F* e0 ^9 X3 N6 y/ ^3 M
[
7 N% e; J0 l9 [7 L4 K) W3 wif( length (item i
5 v- x- o( H1 [' X: _. c9 A3 X[trade-record-all] of customer) > 3 )
) k/ b6 b- O* _1 b+ \[" F0 @' B9 C% g$ I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 S) d2 k- f! J/ R], N+ g& R# h/ d. g9 R. N: r
]. ]9 \8 v6 D6 l. V
let j 0& R3 U. } [) M: Y4 B/ E
let note 0
8 x ?+ z$ [( v+ Z' Xwhile[ j < people]" d* ^; h3 @' |/ q
[
+ Q; H/ ~" J" s/ S" Z' T6 B, Rif( length (item i7 Q# s& C2 T* X2 e
[trade-record-all] of customer) > 3 )
- m. a Z2 @6 v/ Z4 Z[
' V- y8 ~# K9 E- vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). d3 G' Y1 A3 S
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* _# y8 x, G. Z6 d/ Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& f7 V2 a6 g( j
]
. y# J6 c4 ?( R2 x: B9 l/ E]
3 D' s* K- n! b$ Tset global-proportion note
a3 e g& j* A( }]0 c8 ?" p5 d5 W, r) t) ]
end% K1 r! d9 b8 i3 v
0 o6 g: \* ^. lto do-trade
4 u' W& [! r* M* `3 t2 s2 D;;这个过程实际上是给双方作出评价的过程2 {1 D" w$ \. i+ n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* p7 m/ G$ F' ~+ B$ L8 A; H- g' Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% q7 |! E- n, w$ zset trade-record-current lput(timer) trade-record-current) o$ d) H& n2 U. ^3 S: C' |" \
;;评价时间' X. A/ d% o* w
ask myself [9 [% D. l. ?" x
update-local-reputation
# H" s6 }5 D; U0 zset trade-record-current lput([local-reputation] of myself) trade-record-current
' |0 b0 r+ @" e! X' V1 y, V4 Y], Z' G& M% i2 u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 ~$ k; S8 t! o" z9 z
;;将此次交易的记录加入到trade-record-one中8 ^* G' ]. z4 s( g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 X; O! Q7 x* U5 N7 s& N: t
let note (item 2 trade-record-current )
* H+ s" C7 v% C: [. W( y( t- Mset trade-record-current
% q. l+ V! q1 B- q5 w(replace-item 2 trade-record-current (item 3 trade-record-current))
0 D' v/ i8 x5 }' z3 |5 F8 G9 yset trade-record-current
8 K, Y, w9 ^ p9 p: t(replace-item 3 trade-record-current note)
F# n% P7 S3 f8 F' x# [7 t; F
7 X/ [! a/ f3 j9 T0 G/ e: e& b& S6 V5 y9 T5 m2 Q! o4 U
ask customer [
+ x- O' _' [* X5 K8 Pupdate-local-reputation H, |- m6 `/ q) D/ d
set trade-record-current
/ {# M+ o8 T4 P+ W& d0 ^( L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 e; l" P1 g' W# D: R
]+ i$ {3 d( R8 |! _# c5 f
& \/ O' a( D `. J
4 p5 Y* f+ _* C1 E$ s4 |5 o
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 j t$ @$ T) Z
, `+ h3 x; }. w3 v/ Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ j: K6 R- d/ t: [0 J5 W' f0 r;;将此次交易的记录加入到customer的trade-record-all中
( g, ]/ `' ]& W4 |- |$ Tend
+ J! {* D+ V* h+ Z# P$ ?/ [
, E) ^8 i# M& A2 a$ ito update-local-reputation" [( X- c3 @; N. k* {8 V4 S U
set [trade-record-one-len] of myself length [trade-record-one] of myself2 b: ~6 e4 G Y, R2 _& ~$ S
$ F" k9 q) D2 y6 C3 V3 G8 o; g8 W1 ?
;;if [trade-record-one-len] of myself > 3
7 R- r8 A; L# ~/ d8 y& o0 m" s1 supdate-neighbor-total
1 Q! x" \' i% i& L. C1 u;;更新邻居节点的数目,在此进行; Q% U0 ?* l& ^: a0 ~2 {# x
let i 3- J1 w0 P2 h$ y6 b
let sum-time 0
) C3 T" O% q1 ?' mwhile[i < [trade-record-one-len] of myself]* h) D6 ]( E, p8 _7 k' f; u) ^
[. V# {' y* I* p6 G) Q+ P
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): F" V, e, J# _8 H5 e
set i
0 b9 p- A! E* K( i + 1)
( H, ^! y& C; U! `]
7 Z9 n5 C# |2 vlet j 3
) c+ g1 d% [9 |/ [3 }let sum-money 0
: ^: e% Q# e8 g; R" a! J x7 N( U5 Jwhile[j < [trade-record-one-len] of myself]3 F# b/ @. j$ F+ z7 x C/ v
[7 z9 F( e1 C! p' y& A1 }5 |2 F
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)
, X7 r& [$ R7 G, u+ r% U4 z- }set j
9 [0 O4 n* u$ M$ \( j + 1)
( H) l0 a. M& o]3 W1 X: L& V& y- M! J, {
let k 3
/ r2 n( f G0 [, ^let power 0
/ }/ n+ i+ H. T3 J2 Dlet local 0( C6 E, d) E3 `/ C7 F$ H. @
while [k <[trade-record-one-len] of myself]0 |5 G. T: m9 W" H3 B3 e( A
[
. v( _8 x+ r4 v8 uset 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) 4 `5 V! }4 q9 a4 Q. _0 S& \& @' k' n) S2 k
set k (k + 1)
& a2 A+ [6 |: K C]! I) o; M. ^, r6 \7 \- n
set [local-reputation] of myself (local)) l, G4 w7 e, ], k! N
end2 H J& ? V9 N
, \6 y5 I+ V' M8 r I3 M4 A
to update-neighbor-total* g \; V( S5 e- j* v3 }
# |: f- N; p( k' {: Q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 n, m* M0 b2 W
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9 I7 U' {+ z5 I; v/ S4 Qend
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to update-credibility-ijl 2 B( q/ n) F: _
0 `- t0 ]' c+ S6 J" J
;;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& O. V! Z5 W$ d! e) G7 y# [2 d
let l 08 D. t0 F1 Q" e. F+ S4 ?) e
while[ l < people ]! z9 `* k) d/ R
;;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2 l: I; Y! q3 J' ~: d
[& a; W: ?2 s! h1 n( a
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)( X( v5 Q( ?+ ]/ a
if (trade-record-one-j-l-len > 3)
3 j' R8 C5 o; Y$ b# i/ r% u[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
6 F ]. F7 u; o3 J' plet i 3
. ?7 Z0 u' n$ C) @' j# ` ]( rlet sum-time 03 C1 H% I& P# i* x/ |
while[i < trade-record-one-len]+ G4 L9 I# X' {! \; t1 N
[& u0 }% D5 k' e
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 L# G% e. W+ f x) uset i
1 C! Y4 U: p! q) c+ z S( i + 1)" ~0 p& X9 ]4 o! X. G6 ?" n% E
]
4 B2 H! L; H9 D8 G! s8 S4 u; S0 Qlet credibility-i-j-l 0
3 r! D2 Z. q5 R5 U" r9 d, y;;i评价(j对jl的评价)2 `5 b. @8 j% E$ B
let j 3
. i2 r0 t, f- W6 N$ b( q/ b mlet k 4
3 P( ^6 e, N; |0 b% Q& [+ l8 I# mwhile[j < trade-record-one-len]
$ ?, r2 Q- X; r- r& m; H9 N& G5 [% K[$ }- N8 n/ m3 K( h7 q8 U- C
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6 G9 a ]0 `( c4 `7 ^
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)
! V2 S2 o/ V0 \. Kset j# W* n/ b P4 }! x/ ?- s h
( j + 1). N' D. i4 Y1 r6 c9 b- L6 K* n! D
]
( L* D) ^7 c- E7 g7 Oset [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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 `' o" E+ j; k/ v+ j# Y;;及时更新i对l的评价质量的评价
: y. C/ v2 ?* d2 K4 kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 E' a4 b& |- aset l (l + 1)6 w9 d$ V4 e& T
]) [$ `: V- o, J2 \* y: M
end) ^. L3 a6 o: o# t: f# }' L
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to update-credibility-list
9 B" @4 ]# w$ h, Q0 plet i 0
' i* _" b. N4 G5 C8 q% qwhile[i < people]
}7 q( i0 Q- k7 L5 C) I) ~* l[0 A: z! B# E; s, g/ y) n5 w
let j 0
2 s: {; h9 l( n9 _0 ]4 i' w- jlet note 0& G2 g2 t& s8 `( k9 q
let k 06 V7 S! F S6 I" t1 L
;;计作出过评价的邻居节点的数目* r5 X, s" S& s/ b0 ^, U9 D$ @
while[j < people]/ c, b: ^0 d: z* x0 F
[ ]6 A& [# F4 V* L
if (item j( [credibility] of turtle (i + 1)) != -1); s" @$ G0 U$ m* |. G9 }( @
;;判断是否给本turtle的评价质量做出过评价的节点; F; I4 \" j# ~% k2 ^
[set note (note + item j ([credibility]of turtle (i + 1)))9 l2 v& }; R$ k, u8 l1 G
;;*(exp (-(people - 2)))/(people - 2))]
' j% B0 u/ @: oset k (k + 1)
+ Z1 f/ R' Q4 t/ B' S]3 a* F% ~- f0 y! X- x5 \+ O
set j (j + 1)3 P( }( u/ Q+ e9 J
]
( S! a! g( d0 ^9 o2 u2 l: ]% Iset note (note *(exp (- (1 / k)))/ k)( r/ A/ G* y5 B: p: w5 m/ z8 L
set credibility-list (replace-item i credibility-list note)
& r4 k; a* _; \" I9 x& hset i (i + 1)8 N& |& I% i5 q/ W y, |9 ~
]
9 |8 E" ~, {$ C4 f3 t+ E" @- nend0 L5 u3 X4 Z8 d* v# j6 ?' ]
! h; w' M9 Y0 P8 Tto update-global-reputation-list- `( h b. H! @+ g( s( m0 P$ a9 [
let j 0* M$ H% X5 s) k2 o3 y
while[j < people]
6 Q0 C, C9 f/ p$ O$ d[) M* I. v# r+ z8 G
let new 0
* `: p; b Q& F/ C3 z5 M( \( l;;暂存新的一个全局声誉9 I9 ^1 O2 Y: q& k; N( L
let i 0
+ X1 y+ Z& f0 elet sum-money 0& X; h F1 G7 A* a$ C e
let credibility-money 0( X% D. T9 M6 i. C4 X# _9 F. f8 t
while [i < people], |! j+ c( D+ p! J+ m0 u% W* O
[
/ }5 G: O0 |, B) jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), D9 \: V2 w6 ^- P
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 j5 l' n* ~4 A& x
set i (i + 1)
# \ g3 w1 j" G: `( V]
( G% R" o6 b# F% Q( i2 `let k 0
% O# L( L7 b) s ~, Q/ qlet new1 0
7 u* d% k# d: _& @ kwhile [k < people]9 {) w1 u: l ]! L
[
& @+ \, l, B2 r6 uset 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)
* h* A0 Y, l7 }7 O0 X$ F. iset k (k + 1)
$ g1 ^0 K" Q/ @; @] T3 E8 K0 Z/ m- ]/ |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( P% P' U5 W; ~set global-reputation-list (replace-item j global-reputation-list new)# G V% v5 {3 Z2 [8 t
set j (j + 1)
7 R2 k, E9 Z8 l) G3 K7 t# T]
- [% P! P2 _* q, S, G+ A) Mend; {# s4 y! {% h! P6 w2 h) N
4 _/ A J; p' q# d
% f) H$ \% V5 G) p# i* o
0 _% i! M1 D1 Y1 y! P/ H) ito get-color' {, u- R6 i2 r3 P0 x
9 q K6 [6 }" q% s8 j& L/ V- @4 q
set color blue; K5 i9 P0 w6 F. ~ W
end
+ h2 D2 U& R. G. X8 b/ z0 \0 \( K. M
to poll-class
- u$ b: x* U; K# kend
2 C3 Z9 ]! A7 k9 M c4 b' @7 ]( B- u1 D9 H1 ^* j& [
to setup-plot14 P9 P" j1 z) W6 _* ^( E$ _3 e
/ n' F3 g: z }' d/ Kset-current-plot "Trends-of-Local-reputation" D5 N- A" {1 z% C; v
, B- D6 B& H/ b( I! hset-plot-x-range 0 xmax F, ]6 F# }- t- e' G- M7 `
9 L0 \$ [5 d( Q" z& S" n" `) C7 u* }set-plot-y-range 0.0 ymax
3 d, H$ q9 K6 R( `/ [- A* F6 dend
, o) g9 X$ f$ j
# j& b5 R5 [4 m: cto setup-plot2# z6 @4 Z1 Y. Q
# N" t' m6 s) C
set-current-plot "Trends-of-global-reputation"/ l9 J r V1 s6 q% J; j
, @( `, p! x* V: t2 N/ N
set-plot-x-range 0 xmax
4 ^, W4 V4 y0 Z9 w* a, ^, S$ E9 T: j. A2 ]% o8 Q
set-plot-y-range 0.0 ymax/ k3 n' W; T1 m, F7 y S1 x
end
4 E0 V k& ] V _' W, D
# P: G. L, m: g9 u2 @. a7 Lto setup-plot3
3 L" f) \, J' F8 n# J9 Y
% k! B2 s) B5 ?$ C4 Q ?6 }8 v9 {set-current-plot "Trends-of-credibility"
( }/ E/ O5 j0 Y, R) ?8 p" o1 n- b% K- x
set-plot-x-range 0 xmax: W. j$ q4 R* `" X. d
- x; m0 }% ?* c: L+ a/ V$ O
set-plot-y-range 0.0 ymax* V. @' l0 }" ^, `& i9 {
end9 ~: t$ D0 m6 d: c- H
; j+ l0 d" \8 ]9 ?% h$ b1 Pto do-plots
" t' v/ l" m, Y _, K, r" S' Z! x& Pset-current-plot "Trends-of-Local-reputation"% |* B* _( d5 E* b1 @6 W
set-current-plot-pen "Honest service"
1 D4 M2 `9 f7 k9 n6 aend( z# \2 |* |1 B6 P- z
, k2 c; K& q& P/ J/ `! t* J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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