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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+ Y% L- C, w* W( C! T# M
globals[3 }$ U& U. G+ r _9 L Q6 C
xmax
" q) t7 X3 C1 u* Oymax
, z0 h& ]/ S+ q. E2 I) W/ k* Hglobal-reputation-list
. p# P: T" ~. K- y1 o! H( F
* R" x2 a! \- G ], Z;;每一个turtle的全局声誉都存在此LIST中
7 h% d9 C" t- I' A& O: ]6 hcredibility-list( r0 F# A+ t/ w6 @! H' Y. _
;;每一个turtle的评价可信度. U, k+ U' W. a/ w
honest-service
5 W2 {5 e P. V6 cunhonest-service) w( M: D' i2 U. m$ F
oscillation
0 P# F* i) _" ]7 ~5 arand-dynamic
8 }, c) E; H4 x1 _5 l]# k n! D d3 U$ \+ u
& R$ z4 m) {4 u* i% H+ p O1 pturtles-own[2 p$ j8 |) A$ P
trade-record-all
3 q4 ^0 C4 r- _" O# U- V, ];;a list of lists,由trade-record-one组成9 `: ]2 A" U8 _( i; \2 u
trade-record-one) F2 y4 Z2 \! d. ~9 ^
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' z1 w# P2 s. L/ c, ^4 f9 S; h, d" _% y* Q, |
;;[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]]0 z' i: J' v& 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]5 H; h4 m2 r/ K
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
( w3 X4 @0 e/ X9 Z3 V' Z, Rneighbor-total. z1 D% k" I$ H: E5 ?" ^. [
;;记录该turtle的邻居节点的数目
9 {- r& H0 q" D9 \3 U" j& k% \trade-time0 O, K' f9 `# o# c* L" B8 f
;;当前发生交易的turtle的交易时间
% H: `# d/ d1 T8 s5 {- Jappraise-give9 [0 `( {( A# y2 M1 ]0 Y
;;当前发生交易时给出的评价
( M9 i; x' r0 d# K9 z& _1 `' Mappraise-receive, ^6 ^+ ^7 E ~$ N5 c- r
;;当前发生交易时收到的评价
+ |5 t5 \: U+ A' X- A) t- `" aappraise-time
/ V* T: N$ S0 f2 Q;;当前发生交易时的评价时间
+ b9 c) p# k! o3 v/ Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ }0 K! X; \& ^% _trade-times-total
; ~; H" [. N$ W) l2 H7 T;;与当前turtle的交易总次数0 F) w# l7 b4 L4 H
trade-money-total+ }( n* b1 t, `3 \, |& Q# O
;;与当前turtle的交易总金额
% B! {+ f* u" g8 h8 f# _. n" Rlocal-reputation7 Q9 K& }! h- w% x; q6 w/ }5 H# K! }
global-reputation# W4 V4 O# ?- X' t% V3 d$ f
credibility
( `# g+ s/ K; k, v3 h;;评价可信度,每次交易后都需要更新2 {8 _+ }0 Y! j% d! ^0 k
credibility-all. m% f7 Y6 z, n7 u- `# |( W
;;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% ~% K0 T. x! G' i- O% F/ n
8 i* I% ~7 w: e1 D* v5 {
;;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
' x1 ^, Z1 _6 s0 Wcredibility-one
' n% K8 |4 M! j( k;;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
! ?; e2 d( W, U5 vglobal-proportion
7 H8 I5 J! J S* I9 q. O. hcustomer
& i$ p6 c( q5 S c) U' @$ I3 \4 V7 @customer-no
- ~! y4 f* z$ y8 |, A! O. B' T Jtrust-ok
2 u5 m0 V2 i# d* Y+ a- q1 v; qtrade-record-one-len;;trade-record-one的长度
& B! G6 A/ |; P6 `9 U]
o- A+ ]5 ^* x. h# T
% p! a p v' ^5 ]5 _, Z;;setup procedure
/ q" ?3 [/ }+ B% x: N! \3 F
8 e- {, |/ o7 fto setup
6 {+ f* n+ o, |9 U$ D4 W# e8 H. M+ v0 W2 o: K( H' R' u4 B% K3 k
ca4 S# g B' u6 O; E% Q
8 h1 U2 _! s3 e! i; ~
initialize-settings# q9 s* r+ e0 T4 x @
& g, f9 o0 {% O- b) N( B
crt people [setup-turtles]& v# V# x$ w* g
( [' J2 Z+ W4 A3 oreset-timer
( W; f" s$ Y$ |" N, s" [. m
3 f$ W+ D! [$ tpoll-class6 U6 A, f' D/ _1 h" Y
7 c# J! D/ }; e
setup-plots
$ m* Y9 l$ A( F, I9 E
6 [) ]3 H& G; }0 x( x8 T. jdo-plots
- ~+ H; l3 y! S" D9 c9 lend& w9 n4 I& a- e" C' T/ a3 J- r K0 b
& O5 ?$ O5 K3 R
to initialize-settings3 f; _2 x3 P0 \! S7 |4 E' M$ |5 w2 b; F
* x/ h- k0 h- k5 ?9 T; u* U' u! ]" mset global-reputation-list []: h' E* w* f9 g5 H9 E9 \5 Y9 g) I
0 \1 P- G) `6 ]
set credibility-list n-values people [0.5]- s# ^0 \, _# N4 Z7 G" ^
# k& ~9 x, H6 A+ a6 o) W' U
set honest-service 0, o' A3 [5 L* c+ [- u& d
7 ^4 _" y/ A5 B. H- y A1 Aset unhonest-service 0
( ?- X' B' ]5 @" n" K. t; O7 v- h& t* z
set oscillation 06 _/ `5 r% E. `3 A" _" f
0 ~7 f3 x* k- v7 o, ]( p) eset rand-dynamic 0
' b9 ?6 ]1 M6 i3 A( Jend
* O5 u6 }6 ^9 ?! P0 S( {& g9 z0 x7 s% V; b5 @
to setup-turtles / B# t; h0 w) H+ ^/ [5 f$ u0 A6 M
set shape "person"
- ~4 [% |6 I' j& N2 V: o% o1 j# Ssetxy random-xcor random-ycor; i) g2 Y- a' i5 b& n1 B8 A- R
set trade-record-one []
1 e6 T5 [5 m% g5 s
) W( P# g" p" J8 I) I- D& y, |* Pset trade-record-all n-values people [(list (? + 1) 0 0)] 7 S9 n0 z# R8 ~
5 d# v1 M; W6 c( t" z) Eset trade-record-current [], _, f4 ?- B6 l; X4 h+ |9 c
set credibility-receive []
+ {0 X& U0 U5 X. [5 Pset local-reputation 0.5
* w1 i) k- \. iset neighbor-total 01 O" G. O+ M' P
set trade-times-total 0( F) k; r" @# C/ }2 j* }" e+ B
set trade-money-total 05 G; w: H( G& C5 k
set customer nobody
, W; W5 ]! ` D! Zset credibility-all n-values people [creat-credibility]
" u! W9 j' F5 Vset credibility n-values people [-1]
+ [0 r) L% e" l5 Iget-color! D f; I' F" k( }
, O( E/ h- Y/ }, S9 cend
% H$ @, u4 e% G, }
" `* I* c4 S9 \/ ]4 _to-report creat-credibility7 t. u) y5 r, }5 Y8 k
report n-values people [0.5]' k, R- e% w+ g, r0 ^' X8 X
end
+ J8 |* q& I4 v- X7 q: i# J A2 W
to setup-plots9 D7 W+ F, \6 h9 Y( n
3 q' K {$ Q( C6 n- Eset xmax 30
, Q7 [% t- o1 E# p. X+ C
7 C) D0 T3 g2 @+ yset ymax 1.0# l1 Z* C: z) [0 m$ F1 [" c
, Q8 B# _# g, yclear-all-plots
# C; n& n3 c& V
0 l _ H4 ^) P! g8 F5 vsetup-plot1
" F6 ? \- t/ [3 \- H$ N
7 c- }$ W1 ?; c" x6 r+ _: hsetup-plot2
, k& U# [2 I0 }1 D7 R7 W& X# J# Y \2 J& E9 F6 o" O/ J
setup-plot34 ~' g( j) s; | _& ^; l
end; x6 C% o' }4 A6 ?: V j
- {1 J+ q) [# C1 ~ |6 |' N;;run time procedures
/ v6 ]2 m5 n8 }: Q y3 W1 i6 E
( k" ]3 A2 S0 z) W7 Y2 sto go" {9 a1 E) u; X+ u/ i$ X
; j: S0 R6 f+ `& M4 p2 \ask turtles [do-business]( J) g4 H+ i: ^$ p
end j( x$ a: e. p; ^0 i4 L( `) F
& A& T- [) a% wto do-business
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" l! F+ U1 ~; ]9 X, e! C: m% h! |8 @$ I
rt random 360
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& q4 u* {' w2 O, o: ]3 gfd 1
( o" e2 `) Q3 ^/ A4 x2 s k( k0 f- ^
ifelse(other turtles-here != nobody)[
2 H) h$ C5 y. m* S( s' N0 q0 \: @2 [( l( D0 ^7 |( S3 Z/ n8 Y
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)
5 b, R# t. N% v3 {: b5 S s8 M[trade-record-all]of self; v% v: {! S O( c: { e
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ |, z. A$ l2 I7 o7 P! D( O2 ^( ~
& k8 r5 P+ l/ Zset [trade-record-one] of customer item (([who] of self) - 1)
% ~4 x9 T) I7 w5 K- M& F$ s; R; `( ?[trade-record-all]of customer
9 G8 M: [6 E; ?4 W
/ o. o; F* v% K, L cset [trade-record-one-len] of self length [trade-record-one] of self) r( l8 e; W1 T- `
+ x* K. s' ?6 f' a1 [& pset trade-record-current( list (timer) (random money-upper-limit))
, X9 j+ w, p( b! L8 |( u$ F% C+ n- i0 l3 m7 ~
ask self [do-trust]
& e' I3 W3 y I;;先求i对j的信任度
$ f1 Q) A+ G! u9 {$ S. `; T3 ~( o7 o" A* z4 Y) Z
if ([trust-ok] of self)
3 I" x8 u5 S9 Q7 R5 i;;根据i对j的信任度来决定是否与j进行交易[5 q. E# I! ~1 y/ Q" _/ o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" t# u N P$ `, i( `; t
. r# n2 K3 ] X X/ v# z1 {9 ]5 v
[* X5 |/ A6 n. \
% r' W2 v$ Y B5 r4 D( `. @
do-trade
: Y8 j R! R! e/ f a8 F% ], N3 U+ }* p
update-credibility-ijl
+ o o' _% m3 s
& }$ O1 v0 H2 V0 t# I0 v; ~update-credibility-list& W# D1 U- }/ E
2 m- h8 Q0 ]7 H8 L0 u+ ?$ d9 V4 p2 t! e8 M' S8 x, z1 L
update-global-reputation-list3 [5 U8 W, A6 H2 S w: L
+ m! I$ z2 d4 d; wpoll-class
% B2 H/ p u- Z$ E- U' E1 U, W
5 ~/ k; C1 [0 A! G9 V' U. _get-color% g* b; Q0 N* m' c3 \/ N. Z: U
3 H! L& C+ ~* R m2 o* Z* z
]]
# Y1 I6 @" j4 C: v; U
' R0 D& A& d2 e# x; K3 W2 P' k;;如果所得的信任度满足条件,则进行交易
; m6 Z6 t1 y# O, m/ L, @* k7 e
0 ~9 @5 P, D @: `1 R. L0 p[
5 f; U& n: s7 @" |; w' M* h* [1 \/ a: ]+ s: s7 e; v) \
rt random 3603 ] p& Y/ K2 J* P1 Y) D0 l+ I8 }
^' f4 L0 g$ n8 _ }% [
fd 12 w7 k/ C1 h/ c0 o& g! A
- H& t( m T% P/ `$ G4 \]
- D/ `- O& p8 I2 @& r( }8 [- _% ?( S1 g/ M
end" N; n; _7 Q. j: F4 z/ S! C
0 T9 {! c9 B3 p7 t4 s" q
to do-trust , h& Q8 L' F9 x2 I& x
set trust-ok False( u& v/ A, L+ ^. E9 g# o+ J! P
5 Y0 N6 `, ^- h6 W; C; p6 m2 {+ O! ?& d1 m/ H4 }- Q, V2 ?7 }
let max-trade-times 0, `! a. t l+ r/ \# J, E
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! ~5 G* t6 x: b1 B3 l9 Mlet max-trade-money 02 J9 M" s- G$ N1 n& i1 |' D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* b9 Z6 @* \) m; c4 u8 K; B7 X
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ C% D1 v8 Z, U [ @( f( a( }* E9 X$ P/ G! Z
- ]$ y; w$ @3 W6 Zget-global-proportion
6 k, ~" B, q, W/ F* P; J9 clet trust-value
" i2 ]6 B, J/ m' @* Ylocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 `. S% p: A. Y! Lif(trust-value > trade-trust-value)
K% f# I/ m3 e e8 I/ I[set trust-ok true]6 C* m) o& s3 \
end0 s2 N# D* E2 W- R. s8 W4 q+ Y$ E
+ c4 Y/ ^8 T( b' n2 d
to get-global-proportion
: V3 h' W+ O8 ^* r0 u1 h5 E( d* kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 I; F/ d/ p2 \1 d o6 o- \. `
[set global-proportion 0]
1 z6 N% }+ }6 S1 k' p[let i 0- Y" }3 S. b& d- M8 g
let sum-money 0
8 [# q! r+ ~6 C; R2 S) `while[ i < people]6 ?) i3 D1 D! P
[* ^# g' ?5 w# F) c+ P
if( length (item i0 j( a3 e! W- u0 Z; [
[trade-record-all] of customer) > 3 ): L! |, a6 p& P, s
[
; w5 \% R0 M1 R- D4 D5 ?set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; j; e5 f+ u, Q]
# L8 K' _+ k( [, y, ]4 D9 J8 Y! ]]
0 b, R2 ?# |7 o/ ^' Ylet j 0
/ c2 h; {: g; C7 C5 blet note 0* i% y& R' k% Q8 P/ y
while[ j < people]0 P% \7 L; W+ a s
[* E6 E3 i( o. m" [: N; A3 J
if( length (item i
3 {! h- N, f1 p. _' E" O[trade-record-all] of customer) > 3 )1 J4 L* M1 d O/ D" E
[7 r" D# a8 m/ ~
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 Q6 n0 _* m$ b, ^5 C$ k! \) u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; h: |: Q* q& m7 u! i* V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 p/ w6 C! J6 z8 S: N]! h: X; P# ?1 E* o
]
# A2 T) J4 O; ]- Z( E e3 V/ jset global-proportion note8 b3 G8 R9 O5 T/ s% d; D
]
/ F: F0 ]5 \8 X8 c. W1 Nend) _* O7 @7 U, P# L; @ W+ g
/ B% J& R2 j: M7 v; u. P/ E7 y; b
to do-trade% E% @; B: Z" z: o* Z. E' J' K
;;这个过程实际上是给双方作出评价的过程% r2 A+ j) B$ l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: z' l6 O0 z2 Y# d# I6 N( [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 p% ?# G1 a# l& C- P
set trade-record-current lput(timer) trade-record-current
. U5 L& B: S2 M7 I: k4 N* c1 E;;评价时间
7 X5 |* e( k: @, V# ]$ [0 Kask myself [
3 w" z1 c2 O- z |9 Uupdate-local-reputation
8 T6 I3 e; c; L6 ]set trade-record-current lput([local-reputation] of myself) trade-record-current
( u. P! Q4 D! T, P& E: s" x& m& N]4 V6 [" b( I A) g8 s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 O( s7 k! X2 \6 _
;;将此次交易的记录加入到trade-record-one中/ B" {8 c1 x W. T# T9 h2 w
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! Y2 Z" q5 o" a/ p) B( A) Tlet note (item 2 trade-record-current )- V8 C0 Q$ n6 H% N$ Q. J* z
set trade-record-current9 P7 s$ c, F5 o8 A8 Y
(replace-item 2 trade-record-current (item 3 trade-record-current))/ P5 ]. a) i) {" x
set trade-record-current
^8 w: h3 H8 A4 y6 q: d+ K( Z+ [ `5 @(replace-item 3 trade-record-current note)7 d/ [9 O+ f0 Q3 T1 ?
" Y6 N$ `/ A3 f! R1 J+ e
4 V+ I8 |3 J6 I) l+ Bask customer [
5 }1 }+ G$ \9 M& t( c1 H) Pupdate-local-reputation$ a6 E; u3 O( m. O
set trade-record-current
( V3 s4 L: l1 J$ P0 S% m(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 W+ G$ M' L3 l4 Q
]
! s% w$ b3 P6 g4 }" q( ?6 J! A0 \- t; k) e; W" E; J2 T
8 w" r7 ?7 u3 d5 X. n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 z: y& Y# S4 m( p( F
2 p) u4 B* {/ x+ ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, H% o! I+ c6 V;;将此次交易的记录加入到customer的trade-record-all中
7 I! E M6 r, L- L* D1 ^6 {end
* y, m- h* |, W* D$ t/ W( L( f2 G% h8 j
2 q% I) k5 `$ e( T# z# Qto update-local-reputation) |% X% a0 O% p- n$ G
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 G) G2 W" i1 q( V0 [2 W" t* m4 \* Q) x L
9 v# R; `9 y0 i+ |8 {
;;if [trade-record-one-len] of myself > 3 6 F& a5 A% @$ Z$ N# K
update-neighbor-total3 e& R) b, ]: q; g) R
;;更新邻居节点的数目,在此进行
; o" Q2 J8 w" O6 K6 G! R1 I- Blet i 3; ]" Z3 M" H3 O8 e9 Q+ w& i
let sum-time 0
9 u4 ^" o. ?- wwhile[i < [trade-record-one-len] of myself]
2 D9 p& V( j% D[
+ I% D/ R+ W3 t5 q8 |6 l3 l- ?2 _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- `5 l; A9 T2 I. a4 n' s7 Xset i5 P! F3 O q- }$ A& x$ n
( i + 1)3 R- P3 i" w5 y1 R) B2 I2 M
], S5 h6 x6 B5 q. m1 ~
let j 3
9 P, }" e) G4 F7 ilet sum-money 0
' }3 t1 x5 A; ^" [$ qwhile[j < [trade-record-one-len] of myself]* W; \* U7 J% J" W9 A5 t2 C( \& t
[% X, H2 X' h# i. _: Y8 d! x
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), [, r Q" d o
set j9 Q% i* y' e7 [8 V" m
( j + 1)
+ [% A4 K4 A/ [8 {7 h]
[3 Z3 M- b7 [# V# W* ?! ~let k 3
9 C# X9 |5 S) E9 o7 _let power 0
1 j, b/ P2 b6 ]* `" Wlet local 05 \6 l0 \ v! Q
while [k <[trade-record-one-len] of myself]- |7 v! [- k6 z
[8 N5 F" J! R" p" c: ~
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) $ Z- z2 Q8 S7 n Y# q/ c! t( O
set k (k + 1)$ |1 a0 C- K! c
]* M- @$ k* ^6 \* k$ y7 Q) M: p, D
set [local-reputation] of myself (local)
. W: A* u5 r+ T' S% Nend, h, @; P# t1 _
5 K( ?+ ~2 J: Wto update-neighbor-total
9 ?$ x; ~* q8 ~2 ^# o8 e8 P+ e4 ]
, S( `* n7 t2 \5 i9 D6 v0 y$ N+ x' @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! N* n1 J% S, f% F
% T' y* c) J+ F1 x2 B. i: e" S2 q6 S" P* p- ?4 }, \
end
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$ H4 z, x3 x# Y4 G4 u0 qto update-credibility-ijl
* L) j, v9 i% R1 H
; Y7 F" G0 c0 O$ a;;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。
8 C& W4 R! \* j$ }8 G! flet l 07 L% p' L( L- }* \0 h
while[ l < people ]$ S8 C, G( v" z/ i. e- ]
;;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" N5 ^. M! g! i% H" Z6 e
[
: w4 G0 I. v; x [$ ?' }let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 [3 h% p: d7 p! z
if (trade-record-one-j-l-len > 3); N0 s8 M6 ^+ q' H8 k$ Z; Y, ]
[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
$ o' c# A) Q+ v8 G! Z, R2 H, alet i 3
2 C' s% T7 u4 M0 `) x6 y+ elet sum-time 08 H- z2 S3 U* H. D# ^5 D, R+ C3 f
while[i < trade-record-one-len]; W9 H, S- d" c n2 P
[0 V8 `8 H' a% U/ }5 Q' g
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); E6 }1 i0 @0 Q7 H \
set i8 W9 k% ?; F2 P/ g+ e
( i + 1)
/ N; ?0 l. k3 n! Z6 j# ?]* t, K! n* D* l; G+ ~
let credibility-i-j-l 0
) M9 p2 S. ]4 K3 q, C( |4 p G/ W;;i评价(j对jl的评价)( l+ S* L( V' p% Y
let j 3
G5 y* f7 t6 Mlet k 4. C# D. h2 m+ ^
while[j < trade-record-one-len]) ?3 e o/ x% f
[7 z+ K5 w9 u1 d! l* L# 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
8 I! ?$ J' x* n( B* U8 k, U5 iset 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)/ s5 P& U% I4 ~& x* _ a
set j4 A* O0 d+ r: q
( j + 1)
# ?# o& M. U6 P6 U. U A]$ o8 w& K. } C' m. i1 X
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 )): d( T) E% ^ Q( T. x3 \/ K' K
& R- H( N" \5 B, _ V" k l
+ \: ?& ]- d; m: E) k9 \$ a
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 G0 W9 [+ h0 v( X;;及时更新i对l的评价质量的评价
& `7 i1 X% I9 f3 c. I4 l' Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' z \2 m& E1 x3 u6 s) E2 uset l (l + 1)
- Y4 |5 d4 |9 V5 p' B! F; x& o]1 v% c2 O6 |1 j8 i1 V
end
6 P! g5 H$ c; W2 d9 ~5 c
. O: c, s* t; y C. h- nto update-credibility-list U; Y9 n( F+ J! U0 |% K& r
let i 0
5 Q7 D0 @8 g! X* u# W% t+ c. d% lwhile[i < people]
" R2 K+ ]" k; Q[& N+ P9 ]1 ]: O; B
let j 0
9 s; ~' e, ?2 m/ P7 Glet note 0, N8 L: T$ l- P
let k 0- J& u9 X. M. z+ r6 b7 u
;;计作出过评价的邻居节点的数目
* X* R( N/ k5 D3 g1 dwhile[j < people]
6 n6 V' |3 X0 Y6 o[: o; o5 j% b: x& U0 q' H$ q8 q' a
if (item j( [credibility] of turtle (i + 1)) != -1)
( v6 D- b/ b" d+ m5 z2 ]! ~;;判断是否给本turtle的评价质量做出过评价的节点; y& r0 f& D0 ^: _, R
[set note (note + item j ([credibility]of turtle (i + 1)))
c& I* S2 `7 ~! O$ q;;*(exp (-(people - 2)))/(people - 2))]
& P7 W8 b1 ?" z3 x4 M0 B' fset k (k + 1); n+ K" S4 n+ a( P& F g. ~
]
5 U7 {, C, u M2 Tset j (j + 1): _* ^, a. j/ w% ^, q8 \, w
]& y2 |' G( c0 n
set note (note *(exp (- (1 / k)))/ k)
7 V5 ~' j% T& R j/ Nset credibility-list (replace-item i credibility-list note)
, o6 M7 F. B/ ]7 {$ ]( I4 pset i (i + 1)( R( k: U v* Y! |
]
4 \% G" d# T6 \) W) _ Dend
0 z9 \# q l. A3 R' J2 a& h6 N7 d6 P. L
to update-global-reputation-list
+ Y* V0 W/ Q2 z9 clet j 0
4 G1 k9 i t' m7 o9 Awhile[j < people]8 G2 h# T6 u! y
[
( i+ e& E$ a2 Z! |! Y; ]3 `let new 0
7 F1 z7 ~; n' A; T3 \;;暂存新的一个全局声誉
# h5 q% ^% h5 j+ nlet i 0" i; m6 w0 j) r% X; N7 b! a
let sum-money 0* ?* g. F$ {$ f4 g" y z; B
let credibility-money 0
7 Z4 a. W6 b* R) z6 {while [i < people]
" V4 o( T: s% ~6 H# \$ I, i[
; W- d9 w0 x( Zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) n" Y* c& z' q, a0 wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 Z/ X9 k4 l. I l. _7 J4 e
set i (i + 1), W |8 s, }" A5 I
]5 v6 q5 G) F5 z8 q# q) d1 Q! F
let k 0
1 f; V% @' J0 P8 Z) olet new1 07 I% g f& A! s! I, ]" ?
while [k < people]. _4 P' D' Z# D1 G$ s$ N- _8 w: S
[
, l. Q, x" h; V! m. @' Fset 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)% e7 U0 j# e- x( Y- Z( F( X
set k (k + 1)& T9 }2 S& m- a' Y; Q: T, F7 T
]
; O6 x, c: | N, z G) z# cset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * M; [- M* `; c! L6 b! U
set global-reputation-list (replace-item j global-reputation-list new)
! E0 I* N: P4 R4 e4 e: J y& n. Fset j (j + 1)
9 d3 y" s" j, k]
! Q4 B: `7 e) S( rend) x( N# Y- {* _' C& z$ u+ K
+ |, T8 P9 Q/ E' h% a# k
" B Z' Z: i( o ~- n
' a; B5 V0 U4 k& m+ B* P4 Dto get-color' P+ a$ U# m' t, S' g ~
' S9 a$ S; z; h4 Q: w' S
set color blue" R+ I, [, M8 z! E8 ~9 e# E2 M
end; P W9 W6 d6 Z. N- c
( m1 C# S5 ? t' U* n- m r) f$ g+ d2 c
to poll-class- B* k: _& j; z/ [9 v% k
end
. [- c) Z, i; |
6 y* ` c: U7 N0 ?* zto setup-plot10 N, e. m7 n& l; A
2 h9 ~, ^7 B# q/ [set-current-plot "Trends-of-Local-reputation"
/ ^0 ?, Y. g. I) X3 l4 d4 K/ v$ P/ Q- h( E0 N
set-plot-x-range 0 xmax
) ^8 \1 U' c0 {
F% ^; s7 P* R1 q$ {set-plot-y-range 0.0 ymax
- A* N7 v+ a; D9 b- s& l5 y, mend
2 k( Q$ W5 z" ^' N2 g6 B
# i" T0 N m; ?& C# h- y& F- ?to setup-plot2
( V$ ]0 X# J2 D c1 Z
& y4 H, F$ I% e- G% }4 }' Aset-current-plot "Trends-of-global-reputation"
7 }2 D/ M6 D/ K* Z3 U
V* U* k j* @ _set-plot-x-range 0 xmax- ], s1 \1 h% k
0 {1 z- ?9 ]" ^/ wset-plot-y-range 0.0 ymax& t, a; T* o' u2 R
end
8 M: ?% c0 {1 u+ [- R0 ]9 e0 v4 N- q* `) }) N% ?
to setup-plot3) X' {5 o/ _ @$ T. u
2 }* Y+ z5 L# k& |) y' @set-current-plot "Trends-of-credibility"7 B7 S* q5 C3 Z! P; O ~" S7 d
9 `3 T5 d; {: `4 v4 uset-plot-x-range 0 xmax/ }$ ]3 p i& n4 y, ^0 x. }% o
) c `( f) c# {, a% @$ o+ R# N
set-plot-y-range 0.0 ymax0 F; X, e# d/ m" g- W8 h# h
end
$ Y1 e; w8 o2 C. Z
! v0 Y6 @% z) S- a+ J Tto do-plots# M+ |( j, q. y0 k) ^, E0 W
set-current-plot "Trends-of-Local-reputation"
2 `7 T3 V3 e: G$ z6 Eset-current-plot-pen "Honest service". W9 B: G W# w1 [/ C) \
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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