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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" g8 J# e: g2 }6 v1 ^7 V5 a
globals[, @7 [) J% i+ X
xmax; F$ @3 V. } A9 `, h
ymax) ?9 i A2 D) v- ?% k. u4 [
global-reputation-list
9 K# e+ H3 c8 E6 o- N" N( V* T
- N8 u7 W. U; Y1 m$ a/ Q;;每一个turtle的全局声誉都存在此LIST中) q& } W" H. X' L. ?2 m' ~5 ^
credibility-list3 v; P1 E) c& Y7 |
;;每一个turtle的评价可信度" R: I2 i7 ]2 h( T; m+ d
honest-service( Z6 e" f, L& Z7 \4 L; U4 R2 b; M
unhonest-service6 n; }& w$ T/ [" J" K1 Z/ h
oscillation* [" R2 ~1 i% L8 ^+ m
rand-dynamic. x# L& o) s ^+ a! @" I
]
' f, y. U% Z. A- t# |, M* d+ @# g9 M/ _" M. |; h* G) T2 @
turtles-own[& X% }$ g6 V9 J6 c
trade-record-all, k* c0 b8 O4 u
;;a list of lists,由trade-record-one组成
, \* {5 p; A; Ttrade-record-one
( p8 L9 o. _. t- `* N& X;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! u* U( t M6 @ ^+ N: R
! s) i% B- h2 k' D! Z;;[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]]
& D, |1 T+ s3 v5 Z K" Ztrade-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]* ^, R& [5 i5 A- P. 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
/ Q7 G" C* N, B7 h" ?/ sneighbor-total# K! F( O; c& J# O$ _
;;记录该turtle的邻居节点的数目- r) @' e8 t3 Q0 V2 J8 ]
trade-time
& p" a. g- w. I! b2 C# W;;当前发生交易的turtle的交易时间
. R9 b$ j8 |6 W: f, z) _appraise-give9 W8 g1 B, s' X2 \
;;当前发生交易时给出的评价5 v2 h; m0 h* h- \7 y
appraise-receive# w3 T8 ?: F' {; i$ v6 }
;;当前发生交易时收到的评价
2 @: X# \$ r& ~ o& F) [5 }1 u2 L5 s4 Jappraise-time
9 n2 H) O6 j' a3 Y8 X;;当前发生交易时的评价时间( g$ E i3 f3 W' N7 P7 \
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 s! M6 G9 l& {2 O, \
trade-times-total
E7 r: T0 s, R) \ f;;与当前turtle的交易总次数
s4 D: J3 A5 q4 y. {2 Z% Atrade-money-total/ |2 R* H0 ?# r6 B
;;与当前turtle的交易总金额1 o! I' @0 e" O1 Y/ h
local-reputation
- l. \' ~/ m6 ^$ i' h# F* `+ Hglobal-reputation
6 C5 k1 P ]4 m# ?credibility3 C X& v" f3 u( c" z b Y
;;评价可信度,每次交易后都需要更新1 R' k, }& M9 b* i+ W" g
credibility-all
4 o+ r# u# ?7 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
9 c; L& A! A) f% t# g8 L7 s4 Y, H
4 E% V+ p" H) ]" c;;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! l& ^7 S1 ^. [& s# y
credibility-one- _- j4 H: _. H" y
;;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
% }( ]+ n, m6 w* L. `/ m: _( r2 jglobal-proportion3 ]7 ~+ P& U# ?5 v
customer
( j' a J/ ~5 f( p6 q) z, pcustomer-no
* { ^; |4 c' C, w5 B1 z$ I# ~trust-ok
. z) y! P9 Z v+ g. g( K7 Itrade-record-one-len;;trade-record-one的长度9 T* d# s3 l( {, j# S9 a+ Y
] W" O( T- |$ n8 L2 X
2 o7 H( g' \, ], r# S4 m7 |/ a6 _;;setup procedure J9 t( ^: Z8 G+ S$ q p& l
% R7 l, J8 Z5 _0 Fto setup
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# N: n6 p( C! ~# Z4 Z4 Z D- e0 E! xca
( ~* ^0 v; n v! X
; v l- u7 p0 Z/ T" P; K u+ i0 yinitialize-settings
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crt people [setup-turtles]
$ D8 m7 C6 V( |# Y* H" {) C) [3 R# q, H+ p3 K2 g) ~( a0 F4 P0 q
reset-timer& ^) Z9 }4 I3 ]( Q- g
9 s& @2 d: ]$ h$ tpoll-class
0 W$ y, X+ [7 u# M8 p2 l- t- }4 e! m) z; t/ I
setup-plots/ R& Q. N, V: n, c4 M- W
5 M. D9 W& v/ Y' M, U7 O
do-plots
. x& ?& [9 E/ v1 t, tend
* M7 u1 t/ z/ E0 U! x
4 c8 P/ K5 R ]9 H* Nto initialize-settings
6 f. d! b' g- R/ i2 k: M6 W1 y
; x$ ^* Q/ [" u; D1 x& ^0 Nset global-reputation-list []& a5 R4 W, I3 ~0 t- k
$ ?" Q k; p7 ^3 X2 b- q
set credibility-list n-values people [0.5]
8 Q. ^# |! j. r0 H! w: d
0 e; A2 M: H$ @( D4 vset honest-service 0! L8 o1 D. G( m& H5 s
3 |2 J2 x6 v( k+ z3 V
set unhonest-service 0
+ c- V3 D5 q5 J; f* k% w
- _3 h0 e; b5 p; zset oscillation 0
4 Q( m% e& I* s/ S2 [" A
7 J% {: |9 s. ^ f; l( cset rand-dynamic 0) q* \ j9 l' ]6 O
end2 q0 u$ `3 ]( ]% ~2 h9 }3 W5 {
+ ]) G0 P) |( _+ Ito setup-turtles
3 u4 s5 h8 s. \set shape "person"
8 @ a, h2 p# l* A0 q0 W/ k2 Gsetxy random-xcor random-ycor+ y0 N' b# m. Y
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] ; _3 \9 M" c$ l7 q4 b" M
1 w0 G3 c. h7 w [5 o/ |set trade-record-current []
( G1 m9 b7 K0 Vset credibility-receive []
* F% u/ o- u ?& f7 D9 yset local-reputation 0.5! @4 h7 H7 g1 g" d
set neighbor-total 0& t$ t- G, S. y& i
set trade-times-total 0
" p9 |6 T) v' t: Z, L Yset trade-money-total 04 _8 P& w ?* L: g; _; G
set customer nobody
1 V5 M# h* O, i5 e& T4 u1 dset credibility-all n-values people [creat-credibility]
9 r X1 h. q6 j c tset credibility n-values people [-1]
' w' u# z( }; dget-color3 \1 C' Q; o% W8 n
. q1 V' `' F, F
end2 g5 q7 s7 Z! X, c
1 W7 i7 x$ \( u5 Yto-report creat-credibility
G# p. p) T3 c& ]9 X" ~report n-values people [0.5]9 v" t4 S$ x/ F
end( Z; D1 h$ e, v: d
( @( w7 F1 ^5 L0 Z2 M. ^. Ato setup-plots! s) O( J8 x$ b- A2 u& }" l
3 R! X8 Y5 G& \" L" _& W: lset xmax 30/ g* I6 J* Y' |; D
- G1 L" o m- V$ s
set ymax 1.0! c) f# h& g1 N# l, |7 x3 Z
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clear-all-plots
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setup-plot1! q' i' t! G) p& j
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setup-plot2: F% D7 j- t1 i2 U% ]$ i* g
$ G, f( y& x% r* z8 C! |setup-plot32 F2 C0 k! Q9 e9 D4 q; ?# S
end" F, `" X$ `4 p; u+ ^0 d- H, }2 Y
# h) T/ m' @' o# a
;;run time procedures
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to go! H# |8 r+ r8 C6 I4 I) }
- V5 Z9 V; \: U3 `' N2 m, t
ask turtles [do-business]" S, N2 I4 ?6 I
end3 {9 f+ Y* P+ T# t, k& F
/ j& x# D1 ^* f8 }: `+ J
to do-business
}! V5 b5 d9 A& b5 ~; E' e' G3 \8 Q/ y
1 h% q2 {( x- u$ W: I3 g+ F$ b- Z5 m
rt random 360/ X3 U9 k$ a1 R' X! q3 u7 k
, b7 u3 V- f) V, v+ x& V% [
fd 1; N2 w- _7 a0 @; h- k/ @ V6 V
0 ?, b* m0 g- A# W$ p( W+ k, W* d# {ifelse(other turtles-here != nobody)[
( P4 @$ u: p/ Y9 x# L
& v# j8 N. d8 e! oset customer one-of other turtles-here# R0 m2 E' O; I4 A
) L% i0 A( B4 g5 p' Y* ]
;; set [customer] of customer myself7 k5 _2 t2 r, \& _
3 z, @, Z7 L5 m5 Y# |9 D7 @( k3 pset [trade-record-one] of self item (([who] of customer) - 1)
1 m* s, n7 b0 p A2 }9 }3 u; z i[trade-record-all]of self* ?" h, C# `) T7 b' g" |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, G4 G9 c8 A% w: H
; S+ f( b# ~8 i+ r, M Cset [trade-record-one] of customer item (([who] of self) - 1)
& _6 f0 s* V; g* ]3 |[trade-record-all]of customer
/ d: u3 o0 e0 U: y9 F8 |8 d% S
5 q9 n/ t7 m5 q; sset [trade-record-one-len] of self length [trade-record-one] of self
3 }! d4 x" T% w3 H! s0 N
1 b, b- `3 T4 r, A. ]& u8 S; t: Yset trade-record-current( list (timer) (random money-upper-limit))
/ G; i) ^# i6 g! o8 [ ?. [9 J- a" R, m5 b \
ask self [do-trust]$ H0 K! @0 P1 T2 [* Z4 ~' ]: f
;;先求i对j的信任度3 d' m$ m. t, T* {* W
; d% \! S/ |% I1 sif ([trust-ok] of self)
: Z6 P# A, H' q9 H;;根据i对j的信任度来决定是否与j进行交易[
- B. c6 U) r( N) Q* kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, ~: A' D/ ~# k ]( z7 m" y
* L. D; i W/ f; U
[
$ @6 g0 D% J# V
- {) |- n, o2 Wdo-trade4 r. ~1 J ?# W7 |8 G4 ?+ X5 J
" G p; D6 Y% P6 p
update-credibility-ijl2 U( s" d4 `1 v( i2 s4 H
9 E( |' L# f b: ?( B& D2 J# Uupdate-credibility-list
! ~$ c8 ?- m) q
# k3 ?9 C1 y5 b J: |
! J9 a( i! f1 H& hupdate-global-reputation-list3 {8 ?5 F) f" Z( [- m
! O2 B5 n7 z8 y, ^; j! D
poll-class# k3 C$ {, |/ T8 ^, c' F
- d! e: q: n+ u7 ~2 [
get-color
+ p0 R. y: F) f% T! F- c: q$ i# R8 Z/ ]
]]
! K3 R2 S( y" k5 ^* Z6 i* Q+ |4 L$ L8 z) B6 P$ a! o9 [ n0 E h
;;如果所得的信任度满足条件,则进行交易0 ?6 k/ O; x, I& S) R5 U
+ T2 n" Z$ T' H. h1 _) m# l9 R1 R[- {: R7 o4 G2 M, R
# t4 c3 C1 Z# x. ]1 B( D
rt random 360' c% K5 [/ P5 V1 ~5 }% z$ H% Z
, t1 l2 Y1 V0 H" D* Lfd 1
7 a' W8 A2 o% z" o4 r7 E: N- z" g1 M. o- v' A
]* u- u3 H8 U: U
- T9 ~. E% @, }% I. {5 i# V
end) ]3 f4 w8 n' D* T
F& P A1 V3 Y. {7 G& D8 L' bto do-trust M. K' C+ S1 f! I" _# [- D# M0 n
set trust-ok False4 T" D9 x2 m. ^3 V8 [, W0 c
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5 k f: x* D4 w% [( D
let max-trade-times 0
) I* x, B$ S! F1 m _" jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 ]( Z! @$ m5 x. }& tlet max-trade-money 0. z" o" u( Y+ H6 n: q$ O0 x4 G
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' U! v6 i8 g2 {' a, J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% Z- ~4 M1 L* ~3 o( [; w" Z6 c" P, ]6 }
9 ^9 q P8 |. x6 k: e/ b5 h0 r. w" r" ~3 z/ O3 _. x) H
get-global-proportion. Y, p( u \! d# }* a% P" O0 r
let trust-value
- g/ i) Z l2 }+ 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)
) U$ v: f ]" ?if(trust-value > trade-trust-value)
7 n# k9 S5 ?2 t' q. m: B: T3 [[set trust-ok true]) ]7 `( ]8 f2 a1 |3 N( p
end* Q+ S+ f/ m0 U% N7 D! w
2 }& F0 d" @( ?: E2 \) h
to get-global-proportion
+ f# {3 k0 P2 J. Bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- k9 N1 o0 m* d[set global-proportion 0]
! q, c0 y" [6 z[let i 0- x6 `; E# m) J: p% C
let sum-money 0
% ]1 @2 Z( E% H7 t6 g& O0 Uwhile[ i < people]
2 L+ I( m" W5 c* A" b% h[
2 p9 |1 @% ?! xif( length (item i! c) K8 ^# ~* m& \' ~4 v. J- _% _
[trade-record-all] of customer) > 3 )
( | D/ x" Y& Z* ^ A: }. G; S6 O[
' G( m% [# O2 D- Z' s1 Xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 C3 t' j( h1 }1 e5 [
]
4 Q2 m1 S2 I' Y, []
3 y4 q6 w6 e, Z0 z5 Qlet j 0
7 [7 f Y/ L3 [ h3 A: mlet note 0
. C8 q$ ?) I4 Mwhile[ j < people]
, K/ M8 d6 G$ i8 x; l5 I' j- [[7 u) t' ^- a2 R, m' T
if( length (item i+ C" V$ l8 K' G0 l/ M
[trade-record-all] of customer) > 3 )
6 G1 X/ ]) v" e1 b4 N[
. v& g& [8 m; o. R' Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), r2 }# b$ U" j1 J4 |" A$ q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: L/ V* r2 |& d, Q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
w) F( u/ g" l) P! U+ @' O0 u1 g]
, n, X: w0 J, A5 \2 N]6 |' t! P: J4 t* i6 J% a4 q
set global-proportion note; P9 } Q# B4 |& q
]( v6 v" q% k* n$ G3 N! K! _
end/ \- u& _; Z3 T1 I; K% J! x
2 R) M! t( }3 V) s* R" e
to do-trade
( P) W9 q% o) ^ |. G& S* W;;这个过程实际上是给双方作出评价的过程
* i0 R" V8 ?, ?. h9 aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( z/ g- l" ^# Y9 R4 w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ C. ` G) x- z+ P( z9 ]
set trade-record-current lput(timer) trade-record-current8 `( z1 [7 b B$ |
;;评价时间
! }3 B3 Q7 e" f6 kask myself [
$ o# L2 E. R# b/ q* l( e. Vupdate-local-reputation
" ]. }4 M" C! r3 Bset trade-record-current lput([local-reputation] of myself) trade-record-current
/ R! W. z! m5 S8 N# K: S& V]6 S' ` J8 z# M- {7 {5 h
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% @" \9 K' ~! X' p3 E% h
;;将此次交易的记录加入到trade-record-one中
. n( N7 n5 i7 j0 B% ~9 X7 b- iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& b- m' g( U0 @( Q1 n+ X' V
let note (item 2 trade-record-current )
. a# a7 _9 i6 k+ `: Iset trade-record-current9 }& G4 m4 m6 |( E: [" w
(replace-item 2 trade-record-current (item 3 trade-record-current))" I, Y( {2 X0 Z( [) H$ m
set trade-record-current% H4 E0 B' J ~; {, V2 F
(replace-item 3 trade-record-current note)
8 e, r! Q8 m3 A5 I3 {" h$ F8 o. R
' {, `' y. `$ b4 P( w; pask customer [
) \, ^: \; g! y8 r% ~0 _( ?update-local-reputation: k6 o' t. z, Z. G8 Y" o
set trade-record-current
M7 C& G" o9 {" \' [- f7 Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # z4 Z) O3 S7 V3 Q( b: l4 U. ~
]
* M; X6 t- T* ^/ s( T# U4 z( R3 P# N6 {1 L* o2 @( c" L- X
: |2 T% x, x# ]! h4 b5 b; G" pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, b/ X& s+ T, {; t7 c& g5 R
: z3 p1 l8 d7 @
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- w5 u2 h9 h T6 ]
;;将此次交易的记录加入到customer的trade-record-all中" q# a1 O( d/ o0 a# \/ g
end. P# C3 }7 e) N/ r
0 M" f2 K* w% f. I
to update-local-reputation
+ l" v& y4 d8 L) {* y$ o1 S3 e) i dset [trade-record-one-len] of myself length [trade-record-one] of myself; Z* V; b8 u, |% B/ ^
; ~, p& V! J, ]$ |8 K- M
% l$ \! A- U, `: m( X4 };;if [trade-record-one-len] of myself > 3 2 [; l$ u* B% V |/ V) k5 m, v/ e
update-neighbor-total R# h) a W: C* [* p# \& H
;;更新邻居节点的数目,在此进行
: H0 ?& W0 }( B; B6 r0 Glet i 36 U1 ~. w$ s4 l, m. l6 x8 N
let sum-time 0
3 b' r, A$ t& Twhile[i < [trade-record-one-len] of myself]6 L3 U4 Y2 F& U, V4 K
[# b, ]& G( G/ t7 t0 H- n
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 _- l2 ?: J# t) ]7 k1 ~5 zset i& f `8 a, ^$ m- p! A% e
( i + 1)
" `7 O. S# j% L: r& ?1 p]
' [0 X% v' \ {) tlet j 3& N5 {( }; F2 Z8 G0 Y/ t: ~
let sum-money 0
( D+ \1 K/ w5 t" H$ Qwhile[j < [trade-record-one-len] of myself]: h8 l! \' }! d* l) C
[* F6 z/ u _) b' p% o6 v1 e. u
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): B, f. P W/ C2 u% M! i) I
set j
" s4 [: h. K4 \/ d( j + 1); P; A8 C& |4 w9 z; L! U2 p$ M
]3 E$ W" F- a4 v& W3 v
let k 34 Z6 t6 [: b% I/ L/ j7 M, ^
let power 0
' @2 ]2 Z# ]4 c' `! Dlet local 0" K9 f3 Z# s( ?1 e- ^% s
while [k <[trade-record-one-len] of myself]8 e0 U& F7 c- e; f* {) I$ O
[
, n7 y7 w/ W+ 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) # f" y7 u5 J6 r9 e& F. m
set k (k + 1)
8 }6 r" h4 N( P9 [( g5 q, h8 X]
4 ]* o, `& L8 E8 Eset [local-reputation] of myself (local)- N! }' n3 r; O, D" r! F" U* @; F
end; i8 G i; a* ~0 ]+ ~
' V9 ^' _( k* |3 [( a
to update-neighbor-total) B$ S% w' T$ _" y
: ]% q9 ~6 C& ~2 {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 q9 H, w# T3 E4 g& y9 g
$ n% \8 x- `" W5 r
! p1 V+ c1 s4 F' ]2 nend
_' R% b6 ` B+ k
' `0 m! I' Z8 q, z) m4 W3 bto update-credibility-ijl $ T2 Q6 a8 z5 |0 x& }0 G6 v0 i. V( Z
' n! ?) L) B8 @. [- y0 S" Z; _
;;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。7 i7 |/ e" i! y. T# [' P
let l 0; G3 A, V( \; C/ z! H
while[ l < people ]
' w+ ^/ E8 |) 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& U! j' ~, s( S5 Y0 B; O5 V
[& G; b3 Y! D) z, j
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, S% ^& I0 y5 f9 c9 T1 @if (trade-record-one-j-l-len > 3)
1 Q5 e( x7 `% d! y) I* @[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* ]3 Y3 s" d0 j! a) h. I; h
let i 3
' B8 `' R, B$ X- d5 R* wlet sum-time 0! V! n6 o8 ~& \$ k3 y% u; r( t T
while[i < trade-record-one-len]5 v3 E) v4 z: J3 G# p: B% @4 Y
[
) R2 @: P5 X, X7 z8 s% Q4 Y/ Kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ x3 `# }* S( |7 J& O
set i
. I* \# q3 q" B7 Q( i + 1)
( s2 `, I- E" m: G) d% q]% H3 j9 m1 k [
let credibility-i-j-l 0
: N* r5 F( l8 |;;i评价(j对jl的评价)
- @0 v; o# S; b& Q+ Dlet j 3" |& ?$ B1 r4 q0 k2 Q/ j
let k 45 h( q+ ^- c) `, b- t4 ]
while[j < trade-record-one-len]
. A# y7 N9 R" G/ X) _0 z[, c, _. N0 ?- J
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 |- O) o9 d3 ~7 J; a# r$ I6 H
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)
' M3 t3 x9 ?8 t( U$ @; t6 Hset j4 [! s( B: L1 T" f, N# R( J$ ?
( j + 1)
% T' U# t+ I7 D# C]! f/ K# R7 _" c
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 ))' O$ d0 `- T0 g: G3 B/ O% z
3 M$ q3 L' n8 B
5 x& w% Z$ Z+ |( o4 e' x
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' i0 I7 i% `, e3 |1 M
;;及时更新i对l的评价质量的评价
$ ?$ T1 ?5 V1 a) Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 G1 F& @2 Z8 u0 I& f! d
set l (l + 1)
2 O' m; y# O2 r; q]6 {$ N1 j* @0 W3 _2 u" p$ L$ g
end0 U& O. @2 S) C: V9 h/ R
! q4 b9 Y9 G% |- ]& h% v% ?
to update-credibility-list7 z: l/ w# U- E- [. r
let i 02 w% Z; B( c: J* v7 C6 t7 l
while[i < people]
+ u9 M/ a3 O3 q9 Y3 c$ |, L[
0 T6 v; M# Y9 ?6 W0 m( zlet j 01 [+ s l' Q+ a* [5 S3 B
let note 0, M* N+ x4 r- ?# I- Z3 B1 `
let k 0
5 h& G/ p1 d N) E;;计作出过评价的邻居节点的数目
1 m/ O# i& _7 l( R# awhile[j < people]1 t- {0 Y i, J1 v* _
[1 f* R4 l1 ~: Y7 h! d2 z C
if (item j( [credibility] of turtle (i + 1)) != -1)
, d+ K2 a j# Z' O8 e;;判断是否给本turtle的评价质量做出过评价的节点
6 U8 X, l% s" M0 V[set note (note + item j ([credibility]of turtle (i + 1)))1 E0 {( ^7 r. z$ F; V( w
;;*(exp (-(people - 2)))/(people - 2))]
& g$ ]' L+ W# |/ z1 \3 Zset k (k + 1)5 h8 k9 ~. J+ a
]8 b. a) o. Q& t/ i1 c! C
set j (j + 1)
& H/ {1 E2 B2 r' G: u" E& e9 P]7 w# v. ?. F ~2 ]
set note (note *(exp (- (1 / k)))/ k)
) R8 h- o/ O; U4 Cset credibility-list (replace-item i credibility-list note)+ p: M! k; [, k+ [# D( P, s& E
set i (i + 1)
6 [2 G- {) Z) z4 u8 o]
8 B6 w$ R/ L. f7 Y; h% s aend9 Z4 r- g. O1 u4 D$ F8 x& G
8 h4 K1 A, ?8 `4 e" C1 b0 W2 n8 Eto update-global-reputation-list
1 d) R+ o3 B! J1 [, jlet j 0
7 L2 ?" [% N7 ^) Q7 a6 Awhile[j < people]
& N+ u: u2 |7 E$ F: V5 A$ s[& U7 i; q$ N5 p3 p4 s
let new 0
! A2 E# R* E" b+ V4 ~+ c;;暂存新的一个全局声誉' J0 H/ |6 N# \3 |! R
let i 0
9 @3 F1 \7 ?9 N2 T6 [) t8 F0 q+ m) r0 l0 rlet sum-money 01 d v F2 Z3 u" v: y
let credibility-money 0
$ w: R$ D0 _: i$ A, u$ fwhile [i < people]
% y7 c( I. O) | B' u5 r[5 s; c* l3 [" ~3 @# Q% c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 Q7 q8 _$ j% U. S. Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 {! q( O& ]7 P0 _0 B
set i (i + 1)1 @0 J/ D9 N, E9 a
]: X6 N! L" B# ^2 p0 C- A! Y
let k 07 @3 v' L8 x& H7 t, {5 d9 R( C* q
let new1 0
* R$ C8 y3 X& L9 W) O2 W' S9 I; Q, Pwhile [k < people]) c4 e+ J% T+ I: @, N4 h
[$ b% Q% s* [, k9 K8 C
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)+ |# Z. z% r/ @; D+ f
set k (k + 1)& p" [2 R7 K. t! b7 ~& c. {
]
+ b5 o. `4 I$ V% wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
v3 q! o# |4 N' iset global-reputation-list (replace-item j global-reputation-list new)" I) t0 s% S% ^/ t0 g( G
set j (j + 1)
9 I* s' x$ \. q/ ]. o. s- w]
' }( Z8 _8 t2 T- b2 w1 C1 a: ]( Iend6 W6 C8 i1 U, T' ~
$ x+ [# r* ?# U" O, ?' \: K6 Z6 V" q8 b% l% m3 U9 y
( Y( e$ u% n/ y* K J$ {* gto get-color
. o0 X8 {0 d( @3 S) e' _" g. B* S0 j
2 C: f; r4 `" |" p0 jset color blue
* A4 T8 x# N; f1 c. xend* F8 B. k/ w. O; J+ C# k7 @) j! E
( L8 s- U0 F9 s, G5 ~% F7 r
to poll-class1 R+ W+ [ X$ G% D, p
end
; L# Q# y5 t3 G, H# L2 S H0 [# ^& F# g4 g$ K. c, ^7 K
to setup-plot1
* k4 `2 k8 V0 T9 g( i# k8 g8 {1 Z5 m+ H! d: u
set-current-plot "Trends-of-Local-reputation"
+ W) |3 o. K+ x% [
0 J* ^, [7 h. N/ eset-plot-x-range 0 xmax
: A4 d4 `3 o4 H/ j( B' {! ]2 a" g6 w7 @5 h2 G0 B) a. \; _
set-plot-y-range 0.0 ymax3 U @( E' j% {+ X! _
end8 K8 L2 l; @: A. h) I% M
f, j- G$ ], L+ hto setup-plot2" H; Y. O% z4 |. ?) O2 V2 h
2 m( |) ]% R/ ^ H- P% r
set-current-plot "Trends-of-global-reputation"
' t! d' l8 D+ @& Y* h7 m$ K( T1 L1 J& a- B) E( B* g# {
set-plot-x-range 0 xmax
! t& |. J! y/ Q+ s0 P( I K6 R0 y" T) X3 y6 f9 C8 c
set-plot-y-range 0.0 ymax# `! S2 B ^* N+ U$ C W {2 J
end
! I& P8 {% J8 o2 G
% V, U0 s$ g( a4 |' k! _ Lto setup-plot3
, f' N& R$ n# @/ u; S1 ^ H) f# R( @% L% d; s
set-current-plot "Trends-of-credibility") S6 B- F) c6 o4 U3 f6 y
" k$ y6 m( e7 _ Oset-plot-x-range 0 xmax
6 ` W3 x3 ]7 B( v& X" T- z% l# z9 d3 ]$ M3 a
set-plot-y-range 0.0 ymax
6 k4 u4 a; ~+ j$ ]2 k- v3 y$ y! Fend
f7 u N. W1 Z" E" _% x, J$ {4 F8 x& O( @$ `2 I% v* a- e! T
to do-plots
6 }7 l# M6 D6 \set-current-plot "Trends-of-Local-reputation"
4 N4 L: F0 E% v8 Qset-current-plot-pen "Honest service"
. a4 R! o% y9 M, u2 O: P4 w% Fend5 d' V. P4 m2 L6 {. ?* _* R
9 \6 W! l4 G; ^! p. ?1 ^, p
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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