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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
~5 @' ^* ~( h; sglobals[7 Y' k& }! t, i+ i) I
xmax
- ?4 L0 v1 C+ N h aymax$ a8 d& y! ~+ r( t$ E
global-reputation-list
% A* G) S& E# Q4 P
) |$ b5 t6 ~2 t- S% t$ Q" Y;;每一个turtle的全局声誉都存在此LIST中* ]% u: P( f* x% o5 A, H' c5 c
credibility-list0 E4 \% g, ~# ^5 O/ x% m" |
;;每一个turtle的评价可信度
0 H# P" _; ]: A3 D4 K( T, @honest-service) _3 ~+ q& E) n: ~- G+ {
unhonest-service+ t6 B5 g9 h2 z, y3 a! I1 {
oscillation
1 V X3 s1 z; K3 g/ @rand-dynamic
. s: j; g" |- w2 F; M3 p]
[" V' V. R1 b" E! l2 q% U0 m- q% `4 w2 Z( g
turtles-own[
1 a7 G( ?- p: i* F6 Ttrade-record-all
4 h$ i0 O: q2 C1 u;;a list of lists,由trade-record-one组成9 ~8 H/ o% O* E5 Z; g
trade-record-one
' ?# [0 T* p( I/ g X+ r6 u+ 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
' f1 ]4 _3 f. c& S, u! T( j6 ]+ ~( t5 W. n
;;[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]] O9 `0 G4 X0 L7 }2 [
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]
% L5 ]- H+ J, K) D3 |' Ccredibility-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% V N5 \6 X5 n5 t1 ]# A' t
neighbor-total
: L# H: `% }* M/ S, f;;记录该turtle的邻居节点的数目2 Z- n% h4 s1 g7 g3 _
trade-time; p- }5 L( @6 I6 A1 k" ^* \
;;当前发生交易的turtle的交易时间
% a' E1 ]8 F5 U+ wappraise-give# E/ ~" Y" J6 r# b8 H
;;当前发生交易时给出的评价
, }6 \) I4 @- T7 i9 q) W- fappraise-receive) q4 U# f+ F) L2 S2 M( @) N: K% o) x* n
;;当前发生交易时收到的评价/ d2 i" Z W5 t% F
appraise-time0 Z M8 C4 P3 v* C$ y
;;当前发生交易时的评价时间" {; f( z: s H# }
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 L) K' `, z( I: U& O
trade-times-total
" k1 ]2 R0 a! F;;与当前turtle的交易总次数
1 K) B( v0 c3 h/ K; K- O$ y. Otrade-money-total+ N$ [7 T7 Q X1 m B3 r
;;与当前turtle的交易总金额3 I+ l: \7 [+ W2 \& R* _% T
local-reputation# }% v7 ?+ a" H! ~% C8 X
global-reputation6 e8 P. Z$ @' o" A
credibility
% v; j" W9 N$ v% d' u& \, l- ^;;评价可信度,每次交易后都需要更新# N% u: L0 }* _, [
credibility-all4 s. u! V ?8 L
;;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
1 W: \! R$ B" i4 C$ ]3 l. y2 r0 \2 O) [* Z
;;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
/ o7 X3 B% g: ^( P& B8 K: ccredibility-one
$ F$ D! f1 N! _7 B; |& x. b( i" m;;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
6 S# {2 @, I7 Q- c% d- hglobal-proportion
; P8 {7 a9 T) C) n' k3 `customer
2 Y+ j, n# t' s( jcustomer-no
5 S1 J4 r+ j3 w$ q0 xtrust-ok
+ c! P! L; G0 z. F/ `# e$ B; Ctrade-record-one-len;;trade-record-one的长度' U- t! t9 `& {! ^& M0 P' p
]
& z! e8 S- K. v6 }: Y
9 D$ q/ n) o3 S# k- u;;setup procedure
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4 R" q# O7 k% {5 |6 ^% P' Uto setup/ Y$ @0 z& X7 f$ {/ C. J# w$ E
0 ] j1 c) F+ q1 R3 kca; ~* b: I" }- f5 n9 T
$ H9 @: N$ b1 A$ F( minitialize-settings# ?) g* w2 I c e* _# G& U" |
% N' u: r( }7 \
crt people [setup-turtles]
1 R5 n' K7 Q9 |" z0 g( u7 t0 h* P: |3 H
reset-timer. d# b2 t! [4 X/ j8 I$ H+ r
# b+ m$ z* x7 j0 Y6 hpoll-class
" [5 {1 _- d/ a$ C
1 |- o7 h# Y: Y6 Q. fsetup-plots
- @$ i5 R) g/ @; F! Y
/ i- s: K8 L2 Q" ddo-plots4 o: X1 _$ z3 I' Y7 ~1 |# b/ e
end
9 g0 i+ Q0 F3 p! }* f5 ^
, s1 b1 n9 v5 N- e( _5 O l9 jto initialize-settings
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set global-reputation-list []
9 Y4 H" @/ A& D
5 Z! a2 `! C% V% |. {& Vset credibility-list n-values people [0.5]
( z2 _1 B4 Q! ]: e3 E) D, Y6 y2 c" {# ^2 Q- C$ K. _# s* }8 u. Z0 B
set honest-service 0* Y8 z: I+ A q0 _1 ^8 ^2 m* j- Q" \
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set unhonest-service 0
8 q; a3 @" R8 S/ k
( j0 S' @* d2 \* y7 [set oscillation 0
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) H% O2 i; _' T, Bset rand-dynamic 09 q( _# O/ N1 i" s
end
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to setup-turtles
9 A+ L, h) M' ]! S$ y7 M, Q4 Sset shape "person"* e3 F2 l0 y7 V$ j& r& d
setxy random-xcor random-ycor
8 `" F9 \5 @" bset trade-record-one []
0 a; p& r7 H$ E: ?& R& ?- V% n0 D9 U) J. O. M
set trade-record-all n-values people [(list (? + 1) 0 0)]
2 U6 @/ `/ r8 W7 Q4 e5 E
; ?' i9 T+ U4 z$ { Lset trade-record-current []
8 D! b ?( `4 F& s( \# qset credibility-receive []( j7 w. I. y8 P3 z( H
set local-reputation 0.5
& W) f @& \, i$ ]set neighbor-total 0; r: T: t7 e2 F" }! l/ W
set trade-times-total 02 x5 [* ~2 I+ t
set trade-money-total 0
9 c9 E( f, ~# W# Z$ n) @2 Sset customer nobody
1 }3 }6 o6 w }$ }+ ]set credibility-all n-values people [creat-credibility]
$ c: ~ u) r7 Q- p" N" Q0 Eset credibility n-values people [-1]
: W/ s+ F! R& i2 Gget-color# Q7 \4 X, e4 V
+ U1 g" V, {0 W) _9 b1 oend0 J% V! G/ O- i
' Q3 }) Y1 M/ X# V- s t `to-report creat-credibility
4 M+ N3 I' q& Qreport n-values people [0.5]$ L& n; q6 x2 K
end0 N) q: f2 t1 l
9 H! N9 b! y$ f( C7 J
to setup-plots
+ d/ w- l6 Z* C* L/ h* j- M
5 C, t( O$ ?, L9 j' Iset xmax 306 s" N7 A2 n# n# Y. o: ?
s) Q; H+ z9 K5 n2 O2 Rset ymax 1.0* l$ \8 V/ j. L
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clear-all-plots; L, r0 ]4 `% @. V/ N+ k
: N9 s' B, I6 M, P8 }4 v
setup-plot1
% o) h. m8 g& H. N
* r o# I0 p! D" a& O7 Psetup-plot2
* S ]7 p" b. @1 _! u$ y
/ X6 k4 v a8 S& z& o, osetup-plot3
& }! ?& H5 }6 v5 {. f$ [end1 t8 s: M! q4 l3 e8 y" i! X, _
' T: n" u. B7 _; R J0 u/ q& k;;run time procedures
+ h0 W; m: j% v7 J( }
/ P; v# P/ h8 v$ O, u/ Hto go
; z J3 ]& x* H% q& o0 X: e" E& q S/ J* F9 m
ask turtles [do-business] A: _1 E$ A3 |
end
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" x( I3 J% S; J+ [) wto do-business " q, \& e# z ~) i* k
+ |6 ~+ k7 ~# I d) x8 ]
3 n, U% x I5 W1 z* rrt random 3609 l1 H- Q% T! k! C. u
. {: D; z. }; ?/ I; m6 p! L0 Dfd 1
+ k8 T8 U7 V( {1 _- M, _# X$ B. e7 e, ^/ s8 e- Q
ifelse(other turtles-here != nobody)[
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v4 g3 X3 s4 p# D5 iset customer one-of other turtles-here3 b4 j8 H" b& A0 P
" \# [. C% D% i" b5 J+ k( T! b;; set [customer] of customer myself
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- M. C3 [: P8 ]0 U9 ?8 pset [trade-record-one] of self item (([who] of customer) - 1): S/ R3 ?# K0 K# {1 a
[trade-record-all]of self
9 W% {4 z! h, D* M3 X7 R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( \ k4 w7 t$ N7 ~. D" x
) S5 E& g9 J- @/ X2 Qset [trade-record-one] of customer item (([who] of self) - 1)
' r6 M5 p1 r3 }# Z$ K, X- P2 ^[trade-record-all]of customer% d7 u/ @) b: a4 o, m. g5 t# P6 w
, x, t) h, d9 _% I7 w. t d
set [trade-record-one-len] of self length [trade-record-one] of self/ B0 K- o' ^6 P, N$ C
( b' a1 G4 z3 I0 \! Q* i4 c9 hset trade-record-current( list (timer) (random money-upper-limit))8 }) r' u* E( [2 u+ ?- ~1 y
3 W9 A5 P7 ]$ h; _/ Z5 s
ask self [do-trust]
2 y8 p* D/ z% N0 w4 r;;先求i对j的信任度/ Q" N: E, a# @) C3 h2 Q
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if ([trust-ok] of self); O. `6 ?; |# C& L9 \' b* G+ V$ C
;;根据i对j的信任度来决定是否与j进行交易[2 t! H. M/ C l7 j/ _8 Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[6 @' q7 p* s- S# ^
: Q" u! \9 C, c P1 O, U
do-trade. r* l9 o# e/ {0 Z7 z% |
* Z3 y2 M$ P( d
update-credibility-ijl& `+ @- ^: C2 q! G/ } u
9 [& {4 z- F! b$ }+ Jupdate-credibility-list
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- X1 E0 ` l& }( g
3 D; \: C- r3 v, P2 r, U4 Aupdate-global-reputation-list
9 M( x' Y. |" n- q- K4 @* h) z" S! r' V: R x2 I( q2 L0 U1 ]/ p
poll-class, [% h) _& Y7 \' I' P
7 I5 ?" h B# I: G5 Q: c, X! L: dget-color, R" r/ N4 \' p( `' X
/ j0 Y7 i. d! ]3 t. _1 U; M- f
]]) ]) K8 M t6 \! q; e8 j) p' a
4 `$ ?# Z y; M3 Q# B; c
;;如果所得的信任度满足条件,则进行交易! u5 h V4 D4 ?6 `
! T0 M8 }9 I; R8 I( z F- C[
& U4 `$ Y! j6 H0 d+ P( g% ~0 ~# \5 w4 K
rt random 360* l7 {% J( R$ o4 t) |( G
. G/ @* h4 A: f9 Q3 `
fd 1- d2 B5 T- f) e+ P- B
* x2 H! M* n$ V+ J: I& r]
9 a( K5 m; y$ p5 }2 L: l! \$ q( ^0 [7 ?$ e; G- a, F4 y
end
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to do-trust
5 z3 p: [9 I; P3 \9 j i1 Dset trust-ok False
, D' F$ u1 X) e' d' a' [. [2 Z5 `+ i$ j0 f- s" s8 j
U% Z. R9 v' P
let max-trade-times 0
: i' ?& ^1 L' _$ p, K( @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; @( S! W/ Y- Y" l. ^* `- P& x
let max-trade-money 0; ]" k* E0 F6 b5 @6 L M
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- ^5 h. B4 D. ^, O' M M! E. Wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# N0 Z, a+ r" N) P p3 b! k
; q3 p, z1 I- S3 F- O0 I; K2 X7 |2 r @. o. g
get-global-proportion6 t5 ~( x9 ^. D5 a1 x$ D% J# G
let trust-value! n$ U$ L5 Z, R1 m4 Y1 u; v
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), R; N; S6 t" t. R2 @
if(trust-value > trade-trust-value)
/ Q1 c8 D- C9 Y[set trust-ok true]1 K0 ?: u2 _5 @; u4 Y
end, r! ]# G9 r* z1 y5 n6 |: u
N5 G1 l0 p( j+ v5 C- r* X, t
to get-global-proportion
6 v" s4 p0 u' m7 Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), J8 |! m, B& a
[set global-proportion 0]* r" u. h' {6 D0 k$ D0 V: F
[let i 0( C0 ]* s( P, S* r0 U7 X
let sum-money 0
. F" e) O7 F$ H& ] J7 Uwhile[ i < people]+ ^+ {0 k6 y8 G+ F
[
+ V6 Q& H3 u& V1 l: p/ qif( length (item i
) J$ M! F* \9 L[trade-record-all] of customer) > 3 )1 T; o! S6 V. ^6 D( `, j
[
' s5 B% O# r& X! I7 H% V' T7 ^' tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( k- G( \# x0 X* F# b]
1 @2 I* `4 `, U* T]& }# p0 W( r" @
let j 0
/ w1 F* `3 \. N9 mlet note 03 K5 r3 O! i- S1 T1 y; _% D
while[ j < people]
- A/ L6 H. I$ v' j: H[
" }( r) z# R. R! yif( length (item i
- L1 R* n9 O, _' O/ w: _[trade-record-all] of customer) > 3 )8 H+ G9 b5 }# M/ s8 u6 w
[* w( e1 |- P) h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" H! |4 Y! _, W9 P1 u[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) e- j) g! T9 M! c% M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. F+ C6 x, _) w( v- e1 Z]
7 w( _% ~6 z1 Z; S]
: u" [0 d7 R( ]( Eset global-proportion note
# L9 T9 t* ~- M, ]( x* B7 e]- A7 A# V6 T/ d- Z6 b# [6 K
end% t* S: Q- k8 e4 N! r7 q4 u
v; l2 u2 r( T. Ato do-trade
- v7 }" r6 X; d; q# g( U;;这个过程实际上是给双方作出评价的过程
: A& K$ p- f. l* p: q9 e* ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ Y# r$ a, o7 [0 j4 L: N* i9 ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 R9 w2 U9 X5 @+ e& v; B
set trade-record-current lput(timer) trade-record-current/ u ~+ W$ O: W: u5 ~* ]2 |
;;评价时间
' ~& ~5 h8 u7 t5 Eask myself [, w+ n- j: c: }: h% O8 L/ w3 a. W
update-local-reputation
! {% |4 X! h$ m" }0 ]/ |set trade-record-current lput([local-reputation] of myself) trade-record-current* x$ j- p2 J* U+ u; ]0 e1 [; ~5 ?
]
: U! P3 o! b1 Nset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 p5 s1 A. ]2 H1 |" T! L;;将此次交易的记录加入到trade-record-one中
5 N+ y0 J0 [1 i4 w; V5 |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 S' v: ?$ w) D' w4 s
let note (item 2 trade-record-current )
. I" T% e/ D; g$ j, Nset trade-record-current# W9 R' L% p& K3 M# @: s" H( q) O) u
(replace-item 2 trade-record-current (item 3 trade-record-current))) u+ S% L9 k% V8 _. W7 h
set trade-record-current) P& D& K8 N2 g2 a0 q" }
(replace-item 3 trade-record-current note)
1 ?0 s, ^* Y, Y5 H0 e0 L5 z% G0 H! k8 o& [0 x
) | t& Q; [& k* d/ X" _, ^ask customer [5 `" t/ {8 j8 d5 N5 G
update-local-reputation
, S4 ~" l2 Q% s9 xset trade-record-current1 ]& C7 ^( r( a" f
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- h$ M5 V% f; S* y3 L]
' u9 k$ Z; _/ d5 i: V
) E6 Y6 d% `# U, q( P
- D4 m" [/ Q' I# @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* V2 y; g& F. D; z% t. {) c5 w
) U. [: z9 @2 K% ~. k3 m! }8 Bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) z6 ^0 w( d! o2 e# z
;;将此次交易的记录加入到customer的trade-record-all中 Q3 _9 X2 m3 ?7 t4 w2 f
end
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to update-local-reputation+ K2 o& J( G. d$ `9 r( L( k' |
set [trade-record-one-len] of myself length [trade-record-one] of myself
! {. @$ G# ~2 p! P" f
, K" y. X) M+ ]$ d3 Y: k1 a
: a3 T/ U9 u) q" K/ W;;if [trade-record-one-len] of myself > 3 $ ^, C$ L k. H) ~0 [6 f9 ^% R
update-neighbor-total
( L0 h% a; N7 K;;更新邻居节点的数目,在此进行
: ~7 Z6 k3 R4 ~2 c( `7 Jlet i 3
/ H2 Y- O/ [1 `/ [8 O7 U/ b& s9 I h% {8 Zlet sum-time 0
! d3 j8 w- ]7 y+ \* x# f$ Dwhile[i < [trade-record-one-len] of myself]
) y1 G+ M! A3 Z* G: G( X[
9 ?. L% @% N4 X0 \9 S; Pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 n9 D5 D5 {2 I& }, b
set i
* I8 \& O ?- E" r" l8 U4 m( i + 1)! c% s# B) i( N v' ^/ m) {' i
]
, @ e* x$ c: M$ A; Y, h" ~3 o: Ilet j 3% g1 [) V- X* O" E6 C! G" N1 }
let sum-money 00 _) f* C8 b/ n% y# Z
while[j < [trade-record-one-len] of myself]
: S% N/ B9 O9 }* k% g6 l[
! t, u" `- |/ o- ~* d. N0 G# Kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
; C/ @7 T* I) }( r: Gset j
' Q7 i. [$ _- h8 h7 A% w( j + 1)
* o2 f) q9 {! b/ I" n5 i, t$ X5 Z]" v" b) t5 x, x O: H5 x
let k 3
L) L' l/ T3 r4 A1 B8 }% olet power 0! r( {+ D/ n, m
let local 0. `9 q; a2 r- P3 ~* Y/ j. t
while [k <[trade-record-one-len] of myself]& M9 l7 c' N( u- L; W. z" l& A
[
) N" ~/ Z( S' a% F7 iset 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)
; e; q7 o2 [ y5 {/ v' l' Dset k (k + 1)7 ?4 y. E4 C7 _) a3 ?3 W
]# F% |. o, w: b
set [local-reputation] of myself (local)8 |8 ?% A, X+ X# E! A7 |+ t/ e
end
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to update-neighbor-total3 w2 A% t( g+ O) [! z: {3 R
3 J$ L2 Q" G6 a, I' f. T8 ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 R9 f" m+ P! A$ O8 O, J
2 J% r* m$ }( h& {2 J* C" n; k+ c r
end1 d0 x& V) a0 m6 ^1 ~1 D# b1 w% V
3 i: o* N9 Z1 ?7 }/ r5 B. J) U" ato update-credibility-ijl ( d* P2 F: r# q; g" R
9 K1 C* F6 K* f, W- b9 L
;;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。
5 D0 i. S/ A ^& m1 _- e5 _let l 0
% u; ?! t4 {9 E. H- A D# w4 a5 ]( qwhile[ l < people ]
. A/ y0 z7 N: e7 s; l2 z;;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: E' e( I1 H6 c
[
; Q: H' ~6 a" [" Z1 _! zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)& W' D$ m7 v1 H. j, n
if (trade-record-one-j-l-len > 3)
, ^( I* r: `9 Y3 k5 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
+ V5 x$ `; {: ~0 `: nlet i 3
/ A& b+ C5 {! K( C! X6 B9 xlet sum-time 0; R5 {( X$ y- ^5 n' D
while[i < trade-record-one-len]. l7 ~" m$ g1 R- h5 E9 q
[3 u0 w" J% O/ o. {/ w; a1 f7 B
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 D+ D6 j9 ?/ f
set i
. F9 \& u# J. H6 V5 g0 _( i + 1)
9 C, O7 {5 |( g3 n# R]6 }3 u( _) p Z* n% O6 Q- V, r# u) V" l
let credibility-i-j-l 0
7 T! i8 u7 w" \4 ^0 c;;i评价(j对jl的评价)6 S5 F! ]7 o9 l/ Y$ p) `
let j 3/ \/ N2 @% b/ a$ l( E+ @4 K9 s5 ^
let k 4
# G. t1 h% M+ S) m) W/ g6 Hwhile[j < trade-record-one-len]5 b/ B D1 u) w! o8 u
[
8 Z( o# W/ I# \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" I/ V" O- }6 L' s
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)0 k' d2 C7 | y* _- P: M! c
set j0 i5 e. ~" G! Y
( j + 1)5 N; Y; L6 F& t- p1 B/ R6 S
]
7 x& V( F! F$ |2 cset [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 ))
* [+ S/ ~9 k8 O7 v! {+ r4 @5 Z! }5 b8 P7 X: J8 f
2 C8 ~ B) Q7 Rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ W& u, I8 {6 [, m. i/ l/ _2 L
;;及时更新i对l的评价质量的评价* h5 L- S+ B* `3 r2 B) ?, y! G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% O, H0 D* L) ]set l (l + 1)8 ?# e9 I5 A' R2 i3 K
]; |) ^+ p6 u+ T/ G
end
7 k) W% @8 V( ?: O6 e* a1 D3 }) c# o2 p1 b5 L6 k7 j& n( d3 Q
to update-credibility-list
4 r% M8 w8 M X# T9 s, n' j2 F+ hlet i 0
5 b. \- E b( X+ W- s7 x3 V$ A, kwhile[i < people]- b9 `6 R7 F- ?/ x. ~) X) `
[
: d+ q. }/ x$ z6 Llet j 0
/ N4 `, C5 j8 B& C2 D+ plet note 0
6 r+ X) B' t& Llet k 0
' @% }$ D R7 j+ B& \;;计作出过评价的邻居节点的数目$ z, ~+ M3 a& \" s0 U! {
while[j < people]5 _" ~! R! H/ _# [
[
3 p4 ~1 O1 i1 W/ `/ u/ xif (item j( [credibility] of turtle (i + 1)) != -1)
1 q) A" s a2 T+ g) b" r; W;;判断是否给本turtle的评价质量做出过评价的节点/ A M+ B- P1 J3 G' E
[set note (note + item j ([credibility]of turtle (i + 1)))
+ l, |5 d0 B" J& B( g;;*(exp (-(people - 2)))/(people - 2))]
3 e" h& K) Z5 |+ X* bset k (k + 1)4 [; `! m) @) R5 X6 @4 ?; t
] ^2 H6 l$ p/ `1 }1 T, y- S* G
set j (j + 1)2 {6 T4 S1 w7 @ t& t: y
]
. T( G) o7 i4 X5 X+ m) }set note (note *(exp (- (1 / k)))/ k)
: }0 j9 s$ v0 W8 r9 Oset credibility-list (replace-item i credibility-list note)- J- c2 \9 m9 G' \
set i (i + 1)( k: n N4 X- G5 N4 D1 h3 t) D
]6 ]+ a) M7 `! @ X. p
end
& M7 s. i) h3 f# \" u& N
8 _2 @! M: [0 {+ v e& e) e9 Rto update-global-reputation-list; _. J2 _2 Y+ i, Y% P0 [+ \; F8 q
let j 0
9 A( n! u [2 Z6 l" Bwhile[j < people]( f3 y6 b/ v3 w* h0 X$ o# [
[8 x: _& W! Y# K: m5 t
let new 0$ H4 {' b! H- _3 v" t7 V7 ~
;;暂存新的一个全局声誉
# m& d2 I+ C: Glet i 0
' O: ~1 z9 `$ L' k1 ?. x) {% z5 S9 c ]let sum-money 0/ z, I/ \5 c/ r, L$ z/ j3 |6 ]
let credibility-money 0
; _" |! n' x- T% ~while [i < people]7 C# M. T/ K/ [/ n) i2 O
[
% v* w0 z( o' N7 gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- a+ I( T0 H: Y' R' f! Y4 C1 K4 c4 y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 R8 o: N8 K' c. U3 C* K) @; W
set i (i + 1)* `% k* i' h2 |
]
9 ` ~% u* i4 e! R3 h; w$ klet k 0: W: @5 d7 u g8 V
let new1 08 m4 j2 O* G6 W* I
while [k < people]0 o" K; M2 t @% B
[
3 S0 O! S" l8 }, ~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)* L. [; _1 k! ~6 g) J7 W
set k (k + 1)# \' H2 `8 ~7 E- N4 G
]$ j* ^+ W9 W6 ]2 U: u
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& e- f% n6 q( k! E) {set global-reputation-list (replace-item j global-reputation-list new): n. `. Q, d3 ]$ S% d
set j (j + 1)! h2 x) R7 V( X' T
]7 s$ Z4 A$ G+ Z+ h# y; C
end/ V6 V5 K1 C M1 A
1 K5 _+ C( C+ C# M# _$ e7 H- [
9 P9 K% w" C. v1 s" ]' p6 U8 @" F9 Z& }& u
to get-color
^ z% }/ W/ X8 U2 p# Z4 t2 u K( M8 a3 m* V) h; l
set color blue$ d! c3 g& B& Y6 e9 {( ?# E4 {
end
! Z: x% L/ f2 u
6 o" Q2 ^+ b9 ~# {1 e% J. Ito poll-class
% d$ P8 l# I T2 Gend; c8 f& r- h' W8 d
4 F- z. W* U4 }1 X" n bto setup-plot1- T, Z9 p& Z6 z0 n; L
/ v2 J1 t5 K; O1 v$ v |0 t1 O) Mset-current-plot "Trends-of-Local-reputation"
* F9 @! s, l# v1 [: l6 X2 y& J% B1 l: v
set-plot-x-range 0 xmax! {) v2 Z2 z; ]8 h3 `# d% L
# Q, f1 V( v1 P/ U6 k6 pset-plot-y-range 0.0 ymax
, j, M L9 J% O4 T# t% X' Yend% Z5 b5 ~8 I: e$ a
& p: g- L ]/ {4 Nto setup-plot2
; z) s6 i1 p9 S) G9 x1 \6 Y# B1 N4 B6 n" d3 u. }
set-current-plot "Trends-of-global-reputation"
, j4 C/ a6 y/ y% B* ~( U: K: {
: s( g9 z( }' ?6 N0 aset-plot-x-range 0 xmax
0 C) k; Z: G5 y
" ~" D- k l: F ^: zset-plot-y-range 0.0 ymax
5 h( O: G) `& V! l- O: wend% V5 C! d7 |+ b- \! N9 \
: r$ f" b: r z% ato setup-plot3; N1 T) U% P0 N3 q% R V
" M0 e3 j& n! v( p# rset-current-plot "Trends-of-credibility"
6 ]# t( N" B2 }
- k% G1 w6 G! S9 m8 Qset-plot-x-range 0 xmax2 N2 I) z0 p. z" ~( z/ D
) C$ H; I7 I- N2 R7 D6 f# Y6 vset-plot-y-range 0.0 ymax+ H" F. w+ _7 X* S( |/ |
end
% h) G4 Z: G0 E, f9 `3 V% w8 t! R! A) ?4 }
to do-plots
* P% [$ R3 j* Y9 k9 Xset-current-plot "Trends-of-Local-reputation". x7 K8 N3 m0 r5 E$ v5 K0 r
set-current-plot-pen "Honest service"/ i) p, [1 O. g- @4 T* x* }
end
- @8 F# k; T2 L" @2 ]. |, e5 Y5 b. i: f( b6 ~7 i
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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