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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
`+ n2 D, O* k8 q9 qglobals[
+ G5 r# G. w7 \+ N9 Dxmax
- b. J( d& S# G( t5 Pymax
7 N% g# C" j1 _. O1 B/ Lglobal-reputation-list- p4 O M4 y4 D) d1 L% f
4 O5 Y* Q# h* l# Y( m;;每一个turtle的全局声誉都存在此LIST中
4 l5 k! }$ O9 K- y$ tcredibility-list
7 I! L9 ` k M- I! w; R9 Q6 l;;每一个turtle的评价可信度
; n2 i: o' w5 a6 `* L0 k) l. u) Thonest-service* t Z4 c9 Y& G7 Y( e( P
unhonest-service
+ Y1 j+ P" W5 U7 O& f$ Koscillation8 o5 ^2 a( s9 }+ d# B. {5 f
rand-dynamic
% T3 \2 q! p f9 u4 e" _]0 c/ @' Q5 C8 }' q$ ^4 i
2 I4 X) c$ X$ Y4 C; f" bturtles-own[
& } U& c) K& ?0 _# Wtrade-record-all
0 O2 p @" y9 S+ W# R# g- C' C;;a list of lists,由trade-record-one组成
/ s- Y, n$ c% c, i5 ~: Itrade-record-one
) b9 Q. l* P( }% w/ \;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# L4 {6 ]. P, b0 R& z/ O: X& a/ K4 |; I3 L' o# N1 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]]3 v" H# ] H3 } M) X* x7 S- K
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]7 H+ N& e7 q! j) [( }
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$ J% n$ F8 {1 F
neighbor-total6 {8 c" d$ g1 W& ]) H
;;记录该turtle的邻居节点的数目9 ^" }% x- F F6 F
trade-time
, C$ [0 o5 f+ r7 G;;当前发生交易的turtle的交易时间
& \6 w7 H/ S& b# m4 e) k/ cappraise-give9 G9 T5 k5 c! f
;;当前发生交易时给出的评价& ]# S/ J3 ~( x0 e* }7 o: b
appraise-receive
1 b0 g2 n2 b7 S9 k9 P( U) C( i;;当前发生交易时收到的评价+ G% C% Q5 v" \4 g9 `& s5 D j3 J
appraise-time* w; ?2 O0 D3 \
;;当前发生交易时的评价时间
0 q+ h2 D% ^ C1 }local-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 `* a4 o6 A+ strade-times-total0 b- n* g R! b& j
;;与当前turtle的交易总次数
1 ?* Z& ~" }) L v' { Z' T" _- w: Y5 {trade-money-total! \7 [# d4 K: u/ G" r9 Q) {" @
;;与当前turtle的交易总金额3 R3 n) h8 x/ e* e7 P) l/ b9 `
local-reputation7 V5 k& y0 [- d# C3 V& x
global-reputation( E% p Z- L w4 D
credibility
5 j' J9 k0 w8 d4 Q( p8 i/ q# E;;评价可信度,每次交易后都需要更新+ ? @4 l, @1 e- {, p' u
credibility-all
3 ]+ l1 h2 I: n% W1 o5 ?) b4 H;;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
5 B6 M0 a/ d) Q
& o- t6 x2 b4 S- 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, D+ G: u7 t5 G
credibility-one: h; E8 W* }6 a" t' }
;;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1 {1 i; N" U; f- B/ ~. ^% ?
global-proportion
" r; t5 D& F0 _! L$ _customer9 L5 S- l/ A$ k
customer-no) L- l1 I5 w6 \$ y8 f( o
trust-ok
( `6 I2 `) x. d/ ctrade-record-one-len;;trade-record-one的长度! w7 y; M3 x* {/ v3 v% M
]/ x, {$ @! h) S5 G# l6 n) i9 _
; L: U2 j- t4 p
;;setup procedure
1 v- R8 F6 c: P6 P# X3 A2 A* ~$ F B' y7 m2 Z
to setup
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2 Z. N3 d7 W$ C6 ica
0 j; `, F' E+ G. j
$ `$ w7 q0 o1 Jinitialize-settings
1 A; n9 {2 S3 q4 j `9 K7 h0 A1 h9 l2 f4 X2 n
crt people [setup-turtles]5 ^. Z2 I) g& J: J4 W4 K
; j% \' G' `: y2 H$ t' w3 e
reset-timer
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poll-class( t' h2 P d7 o" C( k" `/ X
5 b+ R! z1 O4 o P6 f; {
setup-plots" m5 S# C' ~- L* b+ Z8 M
3 d I) D o5 n" G9 e" Ydo-plots2 X8 x4 L) |8 h4 h& P* O9 U
end( M; d0 G4 B+ ~5 ~
% T" M$ I8 h2 f, C- X* A/ D E
to initialize-settings* F# l( u( ~* o& h; e$ V) d
3 S1 [" Y7 W D$ m4 k, X3 u, c1 l
set global-reputation-list []
' a7 i$ x8 H; P) i0 p4 k) y! I
2 [$ N. Q* ~& C! ~& Mset credibility-list n-values people [0.5]
9 {/ D2 j" l4 J8 g! F
. @0 W) v; U5 ?$ M8 V& C1 wset honest-service 0
% H, y% _/ ^' j+ ]
; ]& ~) K \+ m! Lset unhonest-service 0' I! e, Y- w# d; g
8 K. Z0 n9 q C4 N
set oscillation 0
3 o" i; ^4 f! j# u
$ j, l& P& _! L. N- h+ y, ^7 @set rand-dynamic 0
+ J/ C d; Y+ ?2 o) X# V5 z1 O7 ^end
2 z ~' V5 d n# m5 y# o0 N" z/ [4 M' p F: C% {) ~
to setup-turtles
5 F' f! T- e9 ` Kset shape "person"
1 T# h z: o) y' M5 o0 fsetxy random-xcor random-ycor
( z3 ?/ @8 v: Q5 U4 @9 Z9 X/ Lset trade-record-one []
- H( T0 L. U0 J8 c2 M# o1 Z
9 k# f$ `0 b5 ^5 hset trade-record-all n-values people [(list (? + 1) 0 0)] " \. H9 H- T5 ]1 `, [* [! {3 @
2 ?# k; r/ p$ Z/ }5 @& d
set trade-record-current []
o$ H0 j2 e0 y4 C1 Y9 m6 Uset credibility-receive []
# X* o! C# u* n( n5 d4 V. q: S* Qset local-reputation 0.5
: }( X6 P) y9 H3 c. ]set neighbor-total 0
& [8 L& Y# r2 d- F! s2 \$ R3 Aset trade-times-total 0
# Y: k+ P0 S' E6 A9 p s I% C+ l* }set trade-money-total 04 _6 } M/ B2 Y4 j
set customer nobody' } y! [+ \% g+ F) s
set credibility-all n-values people [creat-credibility]
# P/ U O& k P" {0 W5 f ~set credibility n-values people [-1]+ p u1 u: S+ J5 w
get-color
v$ q- Q6 J! K9 W0 A) f2 P
d# b/ x) X0 D% W' |end
- {$ ^, X8 k4 F d) s* M- \8 X$ k, O$ R. Q+ M2 a, a+ e8 Z8 Z- }
to-report creat-credibility
! \7 u" S+ G/ e: K# S i! jreport n-values people [0.5]
% T8 n. {" f7 eend
T. N+ o7 D- K* J
+ ]$ K6 e: c0 r( A7 O$ Mto setup-plots4 o7 t% p, V1 Y" n; Z, y' f
# K. J# w5 x) Eset xmax 30: B: [$ q* S/ j0 M. D! z# x' B
: j6 v6 r8 W% }2 V0 O. \set ymax 1.0' C1 g- F+ E% O7 t1 o0 j7 v$ {
9 j9 J+ f' d9 H6 K! x+ Z+ O9 T
clear-all-plots
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! K7 r, ^, G% k- f/ r& Usetup-plot1( n- ~+ k% ?( U5 M5 r
: A" x) R/ R }1 Q, ]% x1 K& Lsetup-plot2+ P) l# ]+ G/ ?/ R2 Y7 ~2 E% H0 _
) v7 B; G! F: l( v
setup-plot3
' @3 g C5 _: C# zend2 r8 r" y' j. |
- f. e- n& ^# K- C" g' A;;run time procedures! n' I+ ?7 _. ]9 @2 J3 a1 P- Z
8 M3 ]+ P, ]1 F; |; s/ L" v
to go8 b$ ^' V- E9 a6 ]7 O: y
7 R; Z) Z- u) w( M+ I4 h' R. vask turtles [do-business]+ ^0 c' G# d( u' _( h7 O. p
end
5 v# Z" X2 M+ ?3 P7 R' s# ?0 X( B# T1 M4 ^: ?6 Z6 k
to do-business
. f3 O# Y8 v3 \$ J% N9 ?, N1 i5 T) W1 y9 X0 m+ i% y
e. D, g) M5 y$ H
rt random 360
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1 u! L* r3 I" L, z+ Nfd 12 l- n$ v9 y6 s$ }4 ^1 Q* @
4 N- N9 g) T- R+ |
ifelse(other turtles-here != nobody)[) i" |4 B* _8 N/ M4 y% C& s
% t% W5 {7 r- @4 F7 jset customer one-of other turtles-here0 R. p* P" I* l7 I" w
1 V" X6 E! O( ~/ }
;; set [customer] of customer myself
/ s% P- y; X e( m2 W ]
* }. ?0 w% a; g* Y* \% z% Iset [trade-record-one] of self item (([who] of customer) - 1)
- z$ g* e8 s/ S0 D9 e- k3 O- `[trade-record-all]of self
& [" A) V5 s! t' t! k;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 S! V* \2 Q8 M* p
6 X7 y8 g5 ^: ^* a; h, ~
set [trade-record-one] of customer item (([who] of self) - 1). m& ]3 G& p* |
[trade-record-all]of customer% A6 Y: i4 x: S9 M
' \# C4 f1 W2 f
set [trade-record-one-len] of self length [trade-record-one] of self
; {' Q: e- R" i1 I; d' _! t* L
H; C, m2 m% N) R* ~' \set trade-record-current( list (timer) (random money-upper-limit))
2 K" m- { v6 R! W" d1 l* C4 ~
" X7 s0 s3 o; R: q, I' Kask self [do-trust]) B5 i' I% y; M; [+ h+ y/ d2 w+ S( s
;;先求i对j的信任度& ]& B0 `. t3 N0 a
, m1 B" ~/ T# Q i ^1 T! mif ([trust-ok] of self)# s+ Y B3 b5 R5 N" o
;;根据i对j的信任度来决定是否与j进行交易[& a4 h8 u0 ]! @5 q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
" U3 n/ U I t7 H& c) Q B! G' b" i
[
* Q' M; e/ o* c9 G
i, L/ ~. n9 Wdo-trade% T2 t: C$ Z) P+ ^# B( ^
9 F9 V9 |( i8 }' w3 J& \update-credibility-ijl
! B# ^1 I% w: L% k+ x9 s" ^% m: l0 T+ q* A& c
update-credibility-list
; T, b7 l* ~4 r* B
1 P' V( T2 V; H( R: N9 j9 g2 {8 j5 h* W# E
update-global-reputation-list" a; U, `% k3 \$ ]: K! L6 }
4 m( k, p0 x+ A( P
poll-class
a0 `! @: d5 L, r& a" m2 k6 m
w# @( Y. W7 C5 z I3 fget-color3 z& b/ @0 z- |. J
6 q& x, [4 J. u1 |% K" }]]( z7 p1 M" O7 [
: m/ ~1 c( A7 g$ \7 Y: n
;;如果所得的信任度满足条件,则进行交易
7 O3 y0 Y9 p) z; B3 E
& i3 y+ K2 G' i6 G# N5 T4 `- w9 {[
3 J) n# f$ R. K9 @
3 j$ Z7 v+ n& X" R+ nrt random 360/ n% ?9 y/ X. u/ e3 {5 P
3 `) P* D3 t' E( J) F0 R9 `
fd 1
& O2 k3 j- C) T# u' H8 m
: `5 Z8 d% B# k! T]
" |0 f: u" q: y7 L( m
+ P2 O: c) [1 F' `; }+ dend
& p& |8 \' u5 ]5 p# Z( |
+ B. M: F+ |0 t A0 tto do-trust 9 f! @( b q, `+ J
set trust-ok False
" J! R, {% ]4 `8 U! ~2 x- ~( m7 B, l6 F
' P* h# O9 C( H9 d3 @" T, x# D; H
let max-trade-times 0
" |0 o! g, {) `# b# |2 {foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 {; m0 W" I% r& Hlet max-trade-money 0
2 f' T6 } B0 t* r) Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 F9 j9 j, N6 x" b; N
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- W6 C d+ N" |1 O" i8 E0 H
7 S3 E4 u4 q- @9 I2 ~. x6 e% C5 v6 g- J' C2 M8 m
get-global-proportion$ I7 h1 X/ l/ z; r, d8 d! F" k
let trust-value' T2 z, t2 g2 l$ Q
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)
) N7 t) `. a" A4 n2 [! Nif(trust-value > trade-trust-value)
- L- g ~1 k! g: R[set trust-ok true]( k( s5 Q. K( r/ D& g
end1 s. @+ _- R F* v2 r
% I Q5 o7 P: E# n9 u8 R$ B
to get-global-proportion
7 u. T+ Q6 F% d( O' [3 pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
B {9 v1 v+ K. b4 x# g[set global-proportion 0]
2 C. z, T5 A: }9 ~: |0 O6 f1 M[let i 0
( S) R+ }+ w( l% O6 ~6 |( glet sum-money 0+ a* u; J# E, s- U9 c; s1 d
while[ i < people]
* ]/ G( D2 L! j[
; }& \9 g# n3 }& cif( length (item i
0 B. |$ ?- {5 i( o- o& T3 R& s[trade-record-all] of customer) > 3 )
. J8 k3 X, T0 Q[# G z: s* r% }: J
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& w7 W& y- p" ?6 E; I" x
]- b9 W2 D. ?1 O9 J5 ?
]
2 Q3 `1 P* g+ ^) elet j 0
2 z" l6 v6 l/ G W( B5 T* ]let note 0
! r. C/ W% Y3 K' }) b% N9 E; vwhile[ j < people]
' L1 p5 b; y$ S' \1 [[
% {% t. y& X% N2 E5 d1 z8 Kif( length (item i% c* F% j) X; w; |
[trade-record-all] of customer) > 3 )
T7 N: J) L( P$ t @* Z) f[
( A& K: c! \# M% h+ Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! s5 j0 f0 v6 q. k. d+ Z( L7 v8 G! B; H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" S, d- Q7 L# B) T" N" O- `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# S) R1 K1 m( p8 N( i m]
! x( l# e% M# V# E$ P, {% P]6 z! r2 `+ |* \; [
set global-proportion note( ? c+ p5 L( R1 f# ~5 e
]
) h' f6 ?: \6 \3 Mend. u3 Z' c% T- T0 F& L4 O
6 u4 L' M% S2 ^! cto do-trade+ X; R: S, t K- W n
;;这个过程实际上是给双方作出评价的过程
, s( V0 f8 Q6 l, H- m) yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 q' U9 J8 U$ \8 s! C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" w" S% u4 @5 T
set trade-record-current lput(timer) trade-record-current
3 X) h) q5 I! a- M;;评价时间
5 `+ a. E" V& { x2 N( M( ?6 }ask myself [& `/ f) k9 L4 c
update-local-reputation
; ^ C4 e1 U3 f8 o) Z% @set trade-record-current lput([local-reputation] of myself) trade-record-current
) O2 |) p) B' \7 |- F]- r" W3 @0 J: k8 r, ~, q9 V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: ^6 k) y) h. t, d+ l
;;将此次交易的记录加入到trade-record-one中
) G! N% ]/ M/ b6 d/ o R+ z( uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ C9 M/ N; |7 b6 I, rlet note (item 2 trade-record-current )8 A" B j: r$ }; w
set trade-record-current! U/ j" t. a' P9 y" {" \% ^
(replace-item 2 trade-record-current (item 3 trade-record-current))- Y0 [% ]* W' {, G- M% t/ |9 b
set trade-record-current) h" o: J. s9 [5 V7 C0 \
(replace-item 3 trade-record-current note)5 P; I7 N( L! w# X. g
) F( h% f0 ]6 l* X
5 K$ x# o! W* T+ X7 M6 uask customer [
& ?4 |) o; G6 p. y% M9 zupdate-local-reputation
# v" R; Q' W \& u0 E9 Eset trade-record-current
# a |4 Q# _$ E- E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) w- O5 K+ V$ W i) \( h' R]% d" d. H+ M0 I5 C# w9 ^
" }- I) S0 h, T, h+ T, Z: f
% W3 X$ n7 j2 m+ |9 jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! P+ N3 @: I) J9 H6 j$ o, D- M. Z
/ y, M I1 ?" P+ K7 sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. N6 I& \* M( F, S/ m- [" |;;将此次交易的记录加入到customer的trade-record-all中; X2 N9 J+ V% X- [: W
end# G; F, N! K+ `8 H& e; K% H
( @. |. `- R- J5 c8 A; ?to update-local-reputation, f+ W' H1 t9 w7 |
set [trade-record-one-len] of myself length [trade-record-one] of myself8 B9 a F1 K5 P5 ~3 j% F* z# ?
, k! {5 `9 Y5 _4 n, L1 _; A
5 w4 T0 B C- S5 I( [' C0 G;;if [trade-record-one-len] of myself > 3 5 K) j) u8 [1 b+ z4 o, i! P
update-neighbor-total
V" q$ [" S; ?2 Z;;更新邻居节点的数目,在此进行# a! z6 z1 U0 `
let i 3
( }' |6 k; \1 I8 `( \7 L/ ^let sum-time 0& u# J0 E; U5 u# {/ k; E
while[i < [trade-record-one-len] of myself]1 J9 i" B/ f2 Y" l# n2 d
[8 L1 y c) K9 v1 H0 {. {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- }0 Z/ f$ X# R' _; a+ _
set i
8 T6 X& F# g8 J8 |( i + 1)
3 |& h. V- z. N3 I( f]1 t, c; o# e& p9 E6 D: K6 |; k
let j 33 S9 w; |( v2 L" q* i1 M8 }( G
let sum-money 0
$ C0 z) A1 d+ u' B% Uwhile[j < [trade-record-one-len] of myself]; V9 f* K; a! U1 Y. j" \" F2 w! p( T
[. R- F- S' j) T6 |3 U/ x3 l
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)! S6 f, `, G9 O6 C5 l& c- n4 v
set j
% \8 {; p, H# h. y% K( j + 1)
8 Y) `$ ?1 s: }9 s]
X" Q, |( ?' x2 C1 ]8 n$ Z; |let k 3
' V) F( E) S6 A8 R) `# A* u- N. flet power 0
# J7 u2 _& Q+ M$ L8 q0 `, ylet local 0
# K$ d( A" \ ]/ J \while [k <[trade-record-one-len] of myself]5 k' V/ {3 T6 f6 ]4 B2 I6 V
[9 V: Z9 @7 x. H7 s/ J7 [7 _6 p! ]0 Z8 Y
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) 0 }) ^; J- \0 \' Q" H* S
set k (k + 1)1 C0 k. e% C! H6 J) y& q
]
" f# V) e# G" Q0 W6 Z+ h. mset [local-reputation] of myself (local)
" w9 i# q. ]: send
8 O( O- B8 O- {2 H: z7 U0 ` z8 }5 J0 ?
to update-neighbor-total
c) F L; ]* Y, n8 v- |; `: A) B9 v0 ^8 y) z% o' b4 _# P; v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% {% ~" V) V( L3 K7 P7 l: @( b
! a" M; U8 ~ J- x
3 u* ?) i6 c X9 A% zend; o: M5 _+ v7 v4 y0 ^' H J2 `! \
/ P% u( H8 i; R( x. Hto update-credibility-ijl
" [* e% P. D; g+ l8 }! l$ ?; w) _: Z! R0 h( q, `
;;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。, W, x w& W% P( x
let l 0
o3 P4 D" }) H9 t( \while[ l < people ]% y; o: h$ s7 c) n! M2 b f
;;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; c/ ~; R) |0 x4 W' l0 }8 b/ n
[
" ]* e) H$ x0 j4 L$ M: _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( n2 p& u$ l( z! _4 O8 j5 qif (trade-record-one-j-l-len > 3)
# {* V- ^( I9 z4 U$ g8 X[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; e% U! E3 H* c8 q
let i 3
8 D* q9 I8 R1 @, Blet sum-time 0& A. q$ B7 R4 K
while[i < trade-record-one-len]
& z2 C8 k* u$ B& i0 R[
" `4 c6 m: D" X/ {% a) z8 Q& v" Hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 ?( q0 p9 }( g" V$ `3 k* u+ Yset i' X! A. E6 s, E$ h+ l7 {5 K; t3 f
( i + 1)
" C9 E; y; v1 Q# j- n4 O: `]
& o" g# r6 ~: y8 v8 T5 L4 clet credibility-i-j-l 0
_* f8 J: P" \4 p;;i评价(j对jl的评价)$ R' q! S9 B0 C
let j 3; a! }+ J. i, H6 ?6 f
let k 46 \$ O% Q; J G( {
while[j < trade-record-one-len]
. t) w' d/ _# A9 ^; S- k& S[1 M# B W' o. E$ O, @" ~
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
, {0 k2 b, C' `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)! ^. t3 l0 A/ b$ p+ _8 m1 N
set j
% w3 d9 n5 p# {+ c+ `( j + 1)7 e! w# n }% z& f* e
]. _6 ]' ?/ w8 U7 I) B
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 ))
+ _. M) D4 h# o- @: m
4 u% i' f3 w- l. z6 H* ~8 a Q8 p& ?. R$ _) d0 M4 F2 s# K3 `0 B3 I
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" ^ v' \( L. u' }7 @4 v;;及时更新i对l的评价质量的评价
: i! L1 Q, i+ t' `: j& q6 C$ gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 C3 B% I1 ?1 e, f% _set l (l + 1)) T( U6 k; d! i, w p
]0 m0 d1 W1 H% Z9 `8 m+ E5 c8 J( l+ i
end
$ c2 g3 j- y/ ?3 d) F) r, s4 U2 P4 d u3 h
to update-credibility-list
( T$ s% o7 _4 a' \* l- b, ?let i 0
1 v( X4 S$ t9 ^+ [8 Vwhile[i < people]
" k- e7 w3 Z( ]! X# z[
& Z& S( Y* Y. `3 i; @8 Tlet j 0
: w# V) i4 q( w' ^let note 0+ t# y A C8 u& a$ T! c, d1 O
let k 0
8 @0 q, q. X" _$ x) l# f- U( d" K;;计作出过评价的邻居节点的数目9 `5 R4 k o# F0 q' m
while[j < people]
8 |, _! s$ l: D[
" w( ?) z9 g% w# `5 j+ ?if (item j( [credibility] of turtle (i + 1)) != -1)
; s' h, I6 a$ @0 A8 Y;;判断是否给本turtle的评价质量做出过评价的节点
# I; X% B X4 _[set note (note + item j ([credibility]of turtle (i + 1)))
) `; t5 a2 k2 {+ } Z;;*(exp (-(people - 2)))/(people - 2))]* [6 I ~: w0 t2 D* x
set k (k + 1)
N( E! X- I+ D2 H8 M6 |]
6 I" i" f& o/ ^set j (j + 1)* ^- M# P! c( o P
]
# b# f+ E1 D6 G* p0 H+ G, pset note (note *(exp (- (1 / k)))/ k)9 h: q2 B( B2 g( }$ Y0 e( ]4 z! w# c
set credibility-list (replace-item i credibility-list note)
6 q- R/ w& N- d. t( A; U/ Mset i (i + 1)
2 O' Z4 t* n0 d5 q+ D/ h]
7 f8 i' U( `) V% H! ?! ~2 Y4 `end
$ Q- u( l- f* v9 E/ y, U
+ N$ C( G3 \/ p1 mto update-global-reputation-list
. b3 E2 D$ t) ^9 @- xlet j 0& ?& s0 a. w/ j- |
while[j < people]
% l% H: u- L& L L[
6 f9 Z3 f; ` ?; ^: H# Y7 Tlet new 09 m0 c$ o+ x$ l- y+ P
;;暂存新的一个全局声誉8 t9 ~4 f1 Z( `) p0 Y( L
let i 0
- q1 D$ ^0 c8 Vlet sum-money 0
* e: z, W: }4 plet credibility-money 0, v4 d% v1 J% @2 U7 R" \
while [i < people]
& ?2 ^$ C% q- C$ z& t[
/ U2 G; H m& K( O2 w' Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ j! U% V2 z& J- R3 S6 w, W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
1 d |. W/ V! h5 q$ K# Pset i (i + 1)" b' e7 g" I7 \8 T1 ~3 f
]
3 A7 X! W2 W$ [2 [2 O- Tlet k 0
. S1 N2 m9 b8 Y- N$ klet new1 08 B/ q5 J u4 D- g) K
while [k < people]- ]$ L) E* m8 q' {4 m7 _2 `
[
' c: D. v1 f" g, }0 g' Yset 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)
" p& ?$ Y! {* A3 vset k (k + 1)7 w0 D/ J6 h4 C4 V, g% U
]( k0 f; e! C8 K/ a9 X' J9 a
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! p3 i" X+ w0 x4 c) t! Gset global-reputation-list (replace-item j global-reputation-list new)
7 b9 J6 N/ D" G1 q* u0 x8 \set j (j + 1)3 J9 p1 s! _. F( @6 l' |
]
. w+ a% M0 S; H. ]) aend
4 ~- u' j/ c. u1 P. f; o; k1 K* B
2 s% h( Q. A% p5 ^) n- m: D( ` x+ a; A" E5 @' ?9 W
to get-color
' V' s' D* A4 W+ H5 B: e) S' t. f z2 N9 J0 S) d. O8 C
set color blue
, y: o1 S+ p% E! aend
* W5 F( |6 |& z! f6 s
( W1 j) P% d3 ^1 f# r5 eto poll-class
7 B. \0 b4 a6 S$ Pend8 ~8 n; |; ^* h5 O. F; x
7 _- A* a+ q0 \! {
to setup-plot1& V! @% Q# v* p: f6 g- \" R
/ X: r4 s2 s- r2 d: a4 V2 m# eset-current-plot "Trends-of-Local-reputation", z# D2 @' f$ X x" y
/ ~- `0 o5 z1 }( E1 e# p; d
set-plot-x-range 0 xmax: h7 ^% Y! A! B! p9 D
1 D |! _8 O, c
set-plot-y-range 0.0 ymax
4 F3 ?6 T- H. b! l7 e _$ l6 ?end* B5 ^5 \ J$ A/ A! ]% v1 \4 E
; y: d+ S/ z0 }to setup-plot2
9 D* m6 W! x; M, R5 x) u1 O4 I; g# q
: b$ l7 | K4 M$ }set-current-plot "Trends-of-global-reputation") u; k k9 w E8 s" F' S
9 `* a) K4 Q/ V+ F: G, Bset-plot-x-range 0 xmax8 N v p1 T/ b5 a/ [
- ]1 G% R6 E& y/ u! N3 H+ n* s
set-plot-y-range 0.0 ymax- @' t/ |! ?! X- J4 @; |" p# ^
end& L9 b; l: f) L2 I7 G! e3 a
# M4 l0 r# [/ ]to setup-plot3) G! `4 {+ x) b
, G$ j( ] k% Pset-current-plot "Trends-of-credibility"8 P. J% _7 j, _
$ s, I& |5 C8 i8 ~0 m7 K1 aset-plot-x-range 0 xmax
2 k! \$ H S8 [/ O- W1 J; Q& L( n5 C) F8 Z9 X* \
set-plot-y-range 0.0 ymax
7 Y2 P9 o* u7 m$ a0 Eend
7 p& c8 N; U4 V+ n" z
+ M! G3 r ~7 P4 P) Y9 eto do-plots: g* c f2 Y9 {7 m! J
set-current-plot "Trends-of-Local-reputation"6 {% |8 {8 Q+ [
set-current-plot-pen "Honest service"1 Z" `5 p! v" j/ z& ]
end
4 V: ]. g! \# x& V c! \2 K. O: _2 L! T
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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