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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; C, Q( Y# [, l7 P. h' v
globals[
2 D1 x* l6 S% t' w0 ]6 |" Kxmax
8 M. ]5 Y+ R6 _- |3 q( O4 H" Xymax/ O8 d6 f' ]) h9 C2 i4 Z3 C
global-reputation-list" }: p5 x! K5 s h, r. Q/ P7 R9 B3 v
! m# u! ]- e3 ~0 `6 r2 [( _! F# v
;;每一个turtle的全局声誉都存在此LIST中7 E3 M6 z; [8 h; ?
credibility-list
& N8 ~) X5 D3 u;;每一个turtle的评价可信度
6 L+ ^" W# X+ x7 I8 A5 I! f, H. Qhonest-service( o! Y3 }* C/ t* u7 D
unhonest-service2 _5 ~* S! j/ M9 ^
oscillation
7 \4 n, y7 T4 a4 u; |rand-dynamic0 v) |( u( Y. s- v4 @
]
% j3 k( B$ U( O- @" \+ \( ?4 ~+ O0 j# p/ @. s; Z& J
turtles-own[& R1 a0 O1 b& g$ i8 R/ Q8 L
trade-record-all" @" _2 N/ {6 P7 q1 d
;;a list of lists,由trade-record-one组成
7 l: N+ U. n: t. t6 Strade-record-one
! J6 C# c; w% G; `7 m;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 s2 \. ~+ n k6 H3 t( \5 Z) a& |. E5 L# S2 O, y2 C
;;[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]]
" K. H& Y$ v8 @: ?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]
$ A8 Q( A7 c! T9 Z6 q$ G# E. zcredibility-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; E2 i5 n/ Z7 _ U
neighbor-total( B7 y. D' ^; M( E
;;记录该turtle的邻居节点的数目6 {1 B! k5 C B/ ?/ V. I
trade-time7 R3 f2 T" F; @# @4 H2 |
;;当前发生交易的turtle的交易时间8 g3 j$ o0 S' V* s/ i1 x
appraise-give
) W. L# B( n4 ]/ L/ w;;当前发生交易时给出的评价3 Y) O& i. Z" ^6 Y9 F
appraise-receive
2 T. {! P* E) M Z* F;;当前发生交易时收到的评价 e0 e3 y' y& ^3 {7 z# {5 O5 f
appraise-time
; v2 T! |4 H2 x/ s5 k% G2 n4 F& b3 l# b;;当前发生交易时的评价时间
7 ?9 [. e3 N' J6 U. ~2 x% N$ `. _local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 S# u5 b+ a2 X3 k8 ? w
trade-times-total* R! @, T6 Z( d; Y( p" Z
;;与当前turtle的交易总次数$ g! ~9 a5 \$ k4 z
trade-money-total
) y$ x5 V# z2 W0 A( m& p;;与当前turtle的交易总金额2 s& |% b! L9 Q/ [8 X) X6 l' r1 u. a
local-reputation/ D- B4 w/ u% I6 b$ Y: \
global-reputation
& c" W! \6 x4 _& F$ pcredibility
- h1 ?$ @( ]. c; W% {( D;;评价可信度,每次交易后都需要更新# c; R, J% W2 g- \5 M6 _ t; y
credibility-all
8 {6 E. _3 c4 ];;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
( q2 B% w/ }/ u. U: N( X4 L% i8 t- D( O
* a# P7 C) n; K2 N;;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$ I2 x- V& X8 V
credibility-one
* C8 `6 I* Y0 W+ s/ v9 W;;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 y; H$ X" D6 _2 w$ \global-proportion( H$ m% v4 E! ^
customer
9 J! f4 m$ x7 t3 Z9 e& j, l4 L! N& bcustomer-no
3 J# B* [# z e3 C; n2 strust-ok
4 ?) ~3 W5 Y4 z1 e' \4 \trade-record-one-len;;trade-record-one的长度- n6 p. b+ C# d. S
]
4 `! s: j2 y6 R5 {9 [+ L
( n' h2 r: j) c- w9 G3 v6 ?" E;;setup procedure" Y/ ^; ]" D# V' Y' R4 f; ?
/ E/ z- `$ d1 D& Uto setup
/ r% e; c3 t; g& _
: e/ h( _8 N8 U; e Lca
! J! A( F* S4 O7 L) f+ g0 Z" D
6 C9 y6 d1 V: Yinitialize-settings9 V. L- W- S/ ?* X( v7 L
6 |: f$ D }# S( P& A/ S/ `
crt people [setup-turtles]8 m5 V D6 A4 Z
5 A% C/ r4 f- w; n$ x. _reset-timer
/ u2 D/ F ]( u: k& q/ }' |) m9 o
: W7 G, {, K, g+ o0 b# k& Z3 P( x$ rpoll-class
: E+ c: x; z0 i! u( `; W; e0 L! n1 G: x( x
( R: r* W+ t2 x9 f! l; `( e4 D% Osetup-plots& t f7 S. K- @0 R" K# w. }
) t1 Q) u: \ G3 L" a9 a
do-plots0 S) C! }0 D" g4 g8 p2 P
end2 S8 @ H+ N5 T! D \
, A+ V. Y" |* E, k0 b3 ^8 t* [' Wto initialize-settings1 @5 u; G; g7 |2 @* A; \ ~
6 u& q! p S8 Zset global-reputation-list []
0 j) f. T, R( E/ K8 a1 v8 m/ ^. b4 z9 P! T
set credibility-list n-values people [0.5]; l8 T1 h; ~# D! P p
6 S' ?) t! y0 j- t1 }" H! xset honest-service 04 l' C6 W! \% v" c( h0 n- `/ j' p
1 W- S& y. y0 i4 t1 dset unhonest-service 0! }& ^; F$ j1 z, p4 U _
7 p( t5 g' w2 Y8 o3 p$ D5 B& Gset oscillation 02 U( Y# i" O6 E; K' w
) c: u6 r* b# w6 {# u
set rand-dynamic 0
+ b) U6 _7 N; F* Y" L1 w6 u2 x0 B' Hend
) ]7 w J9 y( d! q+ v- g2 P# @# v% Y+ O- C+ ]* Y
to setup-turtles
0 U5 v6 K& l% F1 W* h" D) c7 [set shape "person"5 O( Q \4 P7 o `: j' U
setxy random-xcor random-ycor) z9 d& C0 O' s& \% Z
set trade-record-one []+ S5 Q- `: w* i& I/ z
% S6 M' L8 Z6 y2 [5 n3 ~# w
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 G1 D2 `* ` j( R# F: a# A) x, D
$ u7 k" J% h. P- |; |
set trade-record-current []1 @3 \1 A; l: X
set credibility-receive []
) ?0 A4 ]2 ]8 ]* Aset local-reputation 0.5
A& x6 D, W- }( ]set neighbor-total 0' i5 @4 C. {( z
set trade-times-total 0' u* `3 N. y. f2 o D* b$ G
set trade-money-total 0
/ R- _" J5 l$ \0 e* j: \set customer nobody+ O" R0 I& B# j
set credibility-all n-values people [creat-credibility]8 U0 l: T. b9 d7 q' V
set credibility n-values people [-1]7 _9 a8 d8 J) p8 g# `9 b; U
get-color
4 Y( R/ _8 y% k8 w" c' b2 J" ?$ C+ ]1 }! `2 i* L& I
end
5 K+ }) J: T$ A! z: S9 L, C9 o" o
1 Q0 T+ L% ?7 R0 C& Fto-report creat-credibility
! ]9 a( f2 o* V$ [- n$ P' kreport n-values people [0.5]
5 Q2 z4 \- X! Rend
/ E9 C3 R* d5 w% `0 i1 X1 [7 a3 p1 H- u* z8 I1 h' Q3 k
to setup-plots) V7 T0 U& X, e, S8 L8 {, B5 u1 Q
; \! M/ H: n0 o" Vset xmax 30: K9 Q2 f: o) n' Q" e
- ` r6 X+ \/ v0 P+ ?2 o: bset ymax 1.0
. v4 N9 T, n. @4 Q% \3 q( t. h) R! Z3 C& Z8 E6 `9 F+ P
clear-all-plots
6 | a6 N }" u( ^: ^4 h5 b/ b) H) m. ^( R) d" O
setup-plot1# l, M6 C6 v* N+ H: t; o+ W
) R6 A- `7 J( Isetup-plot2 D/ C' ^: {; p# l
4 ]6 n5 ~$ b7 ? Z+ R
setup-plot3 f3 O9 x* @3 Z, S- v0 V
end9 j& P; |$ {! x6 N1 V; q
4 S2 i" g- k3 q* W. m;;run time procedures
+ K* {) A3 y; O7 [1 E
% p, m( d" m- J4 M/ dto go
9 I+ s. O3 l5 E' u6 n W# ?8 M3 b6 ~9 @7 D0 l; W! n
ask turtles [do-business]
: A. _& o' N5 i- n# eend
x3 Q! V2 Y q6 K( G8 D0 U
8 v0 ~0 G# Y( C4 c, yto do-business
9 X6 t. z3 R! ~5 A2 H* ]
$ C I6 I& f5 q8 w# K8 E
+ J0 q2 r3 M5 O7 Yrt random 360! y' x1 U- N- {# i+ q* M
. S* {$ |& ]' {& S( Y9 ]( W
fd 11 u$ _5 s' Y1 @' [6 ]& P
$ Y: Z: J" l( o, [4 ?) |; Fifelse(other turtles-here != nobody)[
/ U( r7 l- p7 h& |; Q- Y+ q. }7 K
- d9 ?9 y( q' E3 o( I9 T2 bset customer one-of other turtles-here
; j! I. S* b' N, z1 k) b
+ o. f) n, Y+ I# N. A;; set [customer] of customer myself
7 G( g* x+ S o6 z0 f- ~% o2 q" @4 K* q$ K; N( O# S5 p4 P1 U
set [trade-record-one] of self item (([who] of customer) - 1)% ^+ M, n( I1 {+ F7 a9 u
[trade-record-all]of self
$ j; b' X! C! |( f2 D, a( ^;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# J l7 t, _4 p; ?) B
- Q. L, p* E" Nset [trade-record-one] of customer item (([who] of self) - 1)( s4 L0 _) o/ |+ L8 I0 ?
[trade-record-all]of customer6 H2 L+ o' U3 b) z
& R" D. ~7 v- x$ a! |3 J5 {
set [trade-record-one-len] of self length [trade-record-one] of self3 `1 [3 @+ x. k
4 P; Y( u2 Y! v) A
set trade-record-current( list (timer) (random money-upper-limit)) a' D7 ?" o0 v0 E
" M; a2 ~; v6 P" `ask self [do-trust] F) K/ R4 J# }4 |4 k
;;先求i对j的信任度9 A3 D$ _! C+ G# r. ^# |0 m. H" s1 z
! @, d# L5 N M) g4 ^8 D& xif ([trust-ok] of self)% N& z5 [0 p, ~" P/ b6 @
;;根据i对j的信任度来决定是否与j进行交易[
T* q9 j0 T1 U4 cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; l, W i4 k" x
" Z% l' g5 m P" y# w( a[
4 U2 U4 i$ `9 {9 Z' t0 ]; H2 S" N2 k8 u, B& A- T
do-trade
# X) a/ b! q8 g! m" X0 {. M
7 R" Z2 Q, I3 u$ j' _update-credibility-ijl: B" X/ b9 X$ k7 C4 S
w! C8 K3 J7 t* n1 }, m! S
update-credibility-list& U- }6 G% s2 H S5 X
9 ^2 ]" @- [: V }# B. y |1 Z' E5 v1 u; P, A
update-global-reputation-list
7 v! I7 J$ F8 R; |0 o1 v7 m! @. u' Y" T+ q, S
poll-class
! L8 h6 Y( _$ H0 a* J X( O1 p8 U3 ]2 r: J4 p
get-color
9 l. r1 Y3 q3 o$ B1 B: e8 S+ w; P: c4 n5 `
]]2 [ Q+ f3 c3 D% C6 o' B8 r# `
& q7 {& @' u d7 m
;;如果所得的信任度满足条件,则进行交易
5 Q2 T6 j+ i/ z! i) I4 M: I0 A# E& a0 w/ R
[0 y+ C; p: _0 O$ L$ \" l
: Q1 D8 B3 l3 l
rt random 360
/ r" H8 \( E% S6 o: A4 j+ k6 A) \7 ?6 {2 |: T4 f
fd 1
5 j$ z/ Q+ i/ _* k" n$ j+ C0 s- i) W2 U$ E! K# m
]/ K! G, a5 w! l# d9 {3 T
# M9 W" ~* `1 m$ u8 U% j
end
! y: n, c, q# }' X) l- L: D) u+ d
c( }- H# j9 @1 M, e1 ^8 ~to do-trust
% {& M( P) A. Z% ~# f hset trust-ok False
* c: h2 x& E0 \+ h1 M2 {
3 A6 |) O" E. i; e* y+ U5 w
# Y" Z0 T8 t/ G3 M c5 [8 elet max-trade-times 0
6 t# g# c3 M! s( H5 @; X3 wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! r4 \ I: n2 U# flet max-trade-money 0
+ b$ m% k" k h- E0 M$ |4 gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 M' J% f' c5 f6 W8 m$ t
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ d1 r# }. `% I6 Y" V
! X) `, a; Y0 Y* {+ b, F+ ]* J; d+ t0 j+ ]6 l6 [
get-global-proportion
}9 b! u, d$ C% }0 N+ L8 l% flet trust-value, w8 Q3 R3 N' u* s
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)
" r3 w" t6 j1 F# m8 |if(trust-value > trade-trust-value)+ q E% W2 N u$ w$ _3 e/ y& h r
[set trust-ok true]6 K9 t2 U( U. T9 h: m1 H
end
: j, J, x: ~8 ] p( K3 Q( g8 j( r9 d Q4 h2 d& y8 N# X5 w
to get-global-proportion2 W+ z! v. B6 R0 \' c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): Q; l, Z$ d5 E- G7 ~# G" J+ m+ g: @
[set global-proportion 0]# x. K9 y _9 _; ^& L
[let i 0
! b2 O6 h( [ @; @: Ilet sum-money 0
E# a6 v" m1 W; M. e$ bwhile[ i < people]1 s2 b4 }: n2 O
[
3 ^# _3 V; ~+ E/ b5 cif( length (item i
2 Y/ ]. f( ^- E[trade-record-all] of customer) > 3 ): ` }4 f' {1 u4 q- O [" d3 q3 ]
[$ l0 p. W' z. l2 z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- ^7 `: }: l0 t% G* g" K]
1 K2 J& x$ x+ I+ V9 e3 e2 }/ J]. O# I, D5 p3 l! K% x6 }
let j 0" V- N, a2 x- ^. ?
let note 0 y$ r% O6 L* W- Z f+ G* h
while[ j < people]
' h5 m/ B ?6 [; T6 P[+ j' c. g s/ n: H$ m) p
if( length (item i
9 y, p$ [( E9 d/ A |4 ]! F[trade-record-all] of customer) > 3 )
: ~7 @$ }* h. y" X+ V[3 w/ I3 V! X2 A
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- z, l- c3 _6 f: ~$ C I/ M[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# k- n! O9 H! u" `0 U
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- N; q7 w# k8 K4 ]4 f! F& G]
2 _6 j; s( o" x. I6 I6 V, X3 Z]% u! E6 X+ n% a. I
set global-proportion note" [1 ]& r a! m, h r
]
0 c. g, t! n% F+ ?" eend2 U2 W0 F$ a9 s# V
$ c% @" w) G; k, G3 v4 @to do-trade
+ G/ P3 m) h L& S5 S0 R;;这个过程实际上是给双方作出评价的过程4 h8 K* T, E7 H- j% T8 P6 w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 ?. t3 j! o/ x# [4 |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( f* _# O- |, w4 c# u0 |% H
set trade-record-current lput(timer) trade-record-current! R4 B8 g9 s! O% ?
;;评价时间; I% g( c: k5 L* O8 c
ask myself [
; Y$ i, q8 H& [& c3 aupdate-local-reputation8 X' h, O) ?5 X; L* e# {
set trade-record-current lput([local-reputation] of myself) trade-record-current1 i% n5 n' D+ d" U
]* h+ z% E3 w" ~- S: l Z; a- g
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself H9 Y; K/ ~" c7 F& }8 @& r7 [
;;将此次交易的记录加入到trade-record-one中( R4 l$ a8 ` S; o: O4 g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): S( n, o: {& x( _
let note (item 2 trade-record-current )7 n: z T) V- |5 T
set trade-record-current
1 A, k" D& }3 L! u# o. h(replace-item 2 trade-record-current (item 3 trade-record-current))
* i# L/ h+ T% J! M0 l" Dset trade-record-current2 [9 d% h1 [1 `; A
(replace-item 3 trade-record-current note)
: m1 Z# D, {$ ^+ k; Z: _7 H1 _9 Q
2 E: H7 C. ^1 ^4 x* `6 x
[2 q! ^7 p5 ~" k1 pask customer [
+ ]* p4 G! `7 }' b( hupdate-local-reputation
; g8 E1 m1 t; mset trade-record-current
$ l# P3 e1 M) g& B3 @; V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 g& y5 Y) u5 E g \
]9 _9 C$ Z2 L* S# ^3 K0 m% K9 ^0 y
' u9 a. G8 D& E# V+ w" m4 T% c. {& j* b! d. v" B% p1 f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 H; c: _& {0 a9 R1 o# l* n+ U6 G1 b- V* |
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. K, p5 w, a: q5 Y' Y* L6 i;;将此次交易的记录加入到customer的trade-record-all中9 g6 z F+ I. m- ?3 x9 N4 w
end
5 C# R/ A/ M. Z% x4 d4 q. `2 Y8 G' Q! z
to update-local-reputation R; X2 e( U8 R
set [trade-record-one-len] of myself length [trade-record-one] of myself! O! j2 A: X- a
0 v8 D) N, ?1 h; @2 `9 C3 O
( q' V" G& l1 B4 p L. a" x
;;if [trade-record-one-len] of myself > 3
0 j9 L* M2 v$ R) I5 ~! l1 Oupdate-neighbor-total/ W1 k- D8 t2 k. F2 R. @8 R' @$ z
;;更新邻居节点的数目,在此进行
7 f8 X& X. u f1 flet i 3& H: S: \8 F+ ~* i* s9 Z
let sum-time 02 x9 T# N$ g2 `, d5 ~# h
while[i < [trade-record-one-len] of myself]$ @3 J5 ^' P8 W/ O: j
[# N, e7 z* w$ A" x2 e5 h1 ^, V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ }. Q+ B4 p; a0 ]; B" t
set i; c5 H% {% \! f. O5 A1 r5 B
( i + 1)
+ ?8 L5 \: n. ?]
& U* T; F Q/ o _- n, `- l6 l" mlet j 3
/ H, l4 D$ q' n/ i9 `let sum-money 0& Z; i5 {2 ^# f# y4 ^! o
while[j < [trade-record-one-len] of myself]
5 O+ o8 ~. O( a7 { y. R, U[
2 x8 f! ~3 \( X6 @+ f( lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)) J6 T3 h& S- G( k& U
set j
9 X5 w4 i1 H- @( j + 1)
8 {, ~$ P1 p$ U9 ~) K* ?: E]
+ N7 `4 `: @0 ]) Y5 P/ Rlet k 3' F! o0 C7 t7 d/ S7 q3 |$ e
let power 0
4 v+ ]" @$ x% Alet local 0
1 F3 L6 T; B% Kwhile [k <[trade-record-one-len] of myself]
# D+ `) e/ m2 @# j Y( k! I# B[
/ S1 i f* o' R& J+ q j/ ~/ gset 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/ j# Z9 v0 p- Y- _9 X! }set k (k + 1)! I. p( g& f" H- e
]
! ~4 _" ]0 B* a+ _: \. zset [local-reputation] of myself (local)
1 J3 V9 K6 H6 W/ u. N* t2 X, }% Wend& Y- V8 A$ E6 g% L( E
* h! n: d1 A4 p! A/ {to update-neighbor-total. K: a) _2 m7 Q; T
, B5 g4 Z0 v. C0 I D' x$ y9 Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" s5 b( q6 ^: R: u' J! H' t: Q( u/ E) W: l1 p
9 B3 M0 M' J' {end
$ h3 z* B+ D! r1 ]# J$ A* P$ Y1 ^$ d; W: E3 s- k
to update-credibility-ijl + X$ l" u! s8 S+ y, C' ]9 v- d
a* x, g, f. c) R4 b' b5 o% v: K9 F;;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。" l% I, Z" ^& S2 Q6 s& W
let l 01 d+ n% q1 b. ^. |7 A" p% q% |: B2 D
while[ l < people ]: s' a& ^. n" R/ u
;;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
# B7 N- G' c3 q! `[4 K0 Y. t7 S, C$ L. X$ Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, p; q2 e4 u9 s% qif (trade-record-one-j-l-len > 3)* I- h1 y/ |5 f' Z& X* e) L
[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
9 Q3 s0 l/ w0 ? b8 _* S% @let i 3
7 [8 C4 E1 K" Q0 e5 Slet sum-time 0
8 c, c$ l- U" @8 C: m5 {; swhile[i < trade-record-one-len]8 y+ ]6 p7 s o P
[9 Z. O0 B4 {" x
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* u! ?7 H, o3 V4 Mset i
/ ?; }& b2 z% I% V' r$ N( i + 1); P; _5 L* e: a/ ?' E
]
2 C K6 a3 J2 R0 ]" a9 hlet credibility-i-j-l 0
X3 C! R3 F; H4 {;;i评价(j对jl的评价)# |8 J4 x+ y/ V' z0 O1 @2 _+ b
let j 3
- G+ f0 @* N4 v: s/ C3 t' ?; L! o, Dlet k 4+ c/ J% k' J/ ?- m/ H/ }* x1 x
while[j < trade-record-one-len]
`4 v) E- ]! t5 e[
X) K+ s8 ^! c1 U5 ]8 ywhile [((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
7 ]- \" g4 v: u) j! 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)% ~# k$ X1 m Q! A
set j. v9 E$ K; |- |; X
( j + 1)1 f& f) B' n) q# w2 J& L
]: S, c: ]0 V+ R' c/ x+ h
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 ))
% k- m4 K0 B4 O& K- T# v" i1 \8 S
! ~# Q/ `1 S+ ?; E. ]# X- V: m9 R8 K9 _+ Q( Z: U
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ n3 N) D! M) J. \0 n' @# l;;及时更新i对l的评价质量的评价
# C2 n* f- u( q l+ [/ ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! d- } G& w$ t5 cset l (l + 1)4 H3 l- F. C d& [7 @2 N
]
- ]0 R7 b3 k6 w7 C# R# ]1 hend
' ~$ ?: m4 A; \# i; P8 V) o
/ X2 U; a, X- a! H' b6 n s& Tto update-credibility-list1 x" b4 }7 B* a- D1 y* A7 g
let i 0
% ^, g* S0 N. W5 p$ V; Ewhile[i < people]" A. Q' K! ?; W2 ?" g
[
- y& p* w2 @4 f/ Z6 llet j 0
8 h9 l$ {9 M2 [. ], ?3 hlet note 06 W) O, l; w1 n) K7 E
let k 0
6 I# T2 p% ] m8 G& x& {;;计作出过评价的邻居节点的数目
3 ^# `. n# u- ^7 c" Q! n% `while[j < people]
1 ~% b$ x! B6 L[
% b; E! l$ `/ N/ }# [4 }if (item j( [credibility] of turtle (i + 1)) != -1)
& j, m2 e3 @9 }% B+ s& ^3 N$ t;;判断是否给本turtle的评价质量做出过评价的节点+ J6 C* _, \* s1 p8 I4 m8 ?
[set note (note + item j ([credibility]of turtle (i + 1)))
; q: B2 x- H7 G+ }8 _;;*(exp (-(people - 2)))/(people - 2))]
' }- A. D8 n& z; ?set k (k + 1)1 W* a+ u: i. d3 b+ d' z4 X# H
]& U" {+ [1 L8 E7 b: I" Z
set j (j + 1)
- P/ {9 d1 ?9 o]# o1 n, l: ^# K2 a$ r6 l8 q
set note (note *(exp (- (1 / k)))/ k)
7 W9 D/ M; d, lset credibility-list (replace-item i credibility-list note)
4 w9 L, h |1 A( V: Y: ?3 vset i (i + 1)0 f& [2 H+ K. k
]$ X+ z: j. K9 B
end/ D- A- P( j6 X3 c K) h% Z
' n$ U4 B9 _% _8 S
to update-global-reputation-list' J; w: @, D" ?# q
let j 07 F8 p5 V i! i" X
while[j < people]" `2 t ~* k: e' Q e
[ r) r* k# I, {1 B
let new 0; G7 q) t; L2 D, z; y
;;暂存新的一个全局声誉
% A8 T( w2 q9 ^4 s6 g9 k' E% qlet i 0* z6 G" P- }: [4 c$ K$ o* g
let sum-money 09 @) G6 p8 N: F+ s
let credibility-money 00 Q4 `7 I- k b" H* O
while [i < people]
0 i+ \- Z( I' ^[
- q1 U/ w, E4 n6 p( w; X- Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# V7 _$ N8 ]# b, G# p3 M- g
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, N( f* j& B! C0 d/ }: Gset i (i + 1)3 r3 I% G% b% m, p, w
], `& i& K) P6 S0 N$ Y- v5 [1 \2 I: X3 Q
let k 0$ W0 r( i5 ~/ f" [( E% Z
let new1 0/ z' E& f( F/ n6 ~
while [k < people]
' j, v1 B% P* F' O" J[$ O6 {- }' G* @. v+ C; ?0 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)+ A: E; k9 O) M5 {+ O+ J [
set k (k + 1)6 [! h+ o7 |( q- O( v P# z% x
]" C8 Y- a; m1 D! J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 o& L: g- q! q; J, a1 E5 \- ]set global-reputation-list (replace-item j global-reputation-list new)
v3 n. y, B& @6 V8 }! J9 Iset j (j + 1)( q( r' u- n, p" C _
]1 r6 I0 H5 x: Y9 V
end$ L2 o# h9 C7 F: {( p6 O0 A( R$ V! q
) C: z. J+ T3 Q
2 j7 c7 N9 H7 r* R- u
) n1 K6 K$ D2 p/ [: X/ D
to get-color5 s6 Y9 U8 {4 K
q( H, o+ x3 y1 C/ Z# y
set color blue2 b9 Y+ W7 V* F
end
# }8 @! y! f: _' g% L- w8 ^( D' s9 J+ `; P E
to poll-class: K2 c$ _1 i' w9 t# Y
end7 N" V8 K" H5 O# ]. n8 O
1 D" V. }; C2 C7 j6 vto setup-plot1
; R1 L1 o: q% L
1 X; Y$ \, @7 l) ^0 kset-current-plot "Trends-of-Local-reputation"1 U0 a: c& V5 a! P Q1 A
# m$ H$ f" }# W2 V( L+ P. f
set-plot-x-range 0 xmax! ]( e, T, F0 N- ?, h/ v' U2 r
8 O% W4 {& {' R H/ g4 Q
set-plot-y-range 0.0 ymax- x! Y- b, H/ M9 c" \2 L0 N( F5 E
end3 A$ j; N7 Q! I2 D9 S4 W8 c
/ C( o. l; w' d; E, `* B2 |
to setup-plot2
2 P% ]5 K& b7 }( l8 d
& o5 I2 x% ]$ u' A& Hset-current-plot "Trends-of-global-reputation"
3 E8 u. [* [. o6 k; c$ E* ]. g
' Y/ {& Y+ p& H# h9 ~/ wset-plot-x-range 0 xmax; g& {+ Y9 f* p% N) P
" H& x3 N A& E$ Z% w+ H" p
set-plot-y-range 0.0 ymax
8 Y8 A# s- r" A0 K' Q) L$ vend
5 q7 G; |/ x6 T' W, I. ^
; g- p" Y; Y0 Qto setup-plot3
9 h0 { R8 J! {2 C/ G6 R2 Q
1 v f7 ~* Q. Q0 m- w8 Tset-current-plot "Trends-of-credibility"
' X8 K. C; l6 v1 p/ \) Q
3 k1 V/ b Q% H! J3 x3 y7 Sset-plot-x-range 0 xmax- O' N) x* g5 A. Z8 y
% Z( r5 ?; ?: Q: R5 Hset-plot-y-range 0.0 ymax1 O5 ^$ q9 F) o7 {$ T
end
5 \: S5 Z6 e) ~5 ?6 p* c1 v3 W4 x( @+ n
to do-plots
- a& Y5 j1 ^, z s' ?# f" z- Tset-current-plot "Trends-of-Local-reputation": K, g: e- _" {0 c# O$ }) R
set-current-plot-pen "Honest service"
8 Z* k- v6 j; {end2 d% b. `3 H+ `1 i( H4 @
1 P& i! r2 O( V+ s9 k. e8 I
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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