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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
4 R C# {+ P: ?. @1 D5 d3 ?" T& \! |( Dglobals[
' A. k+ D. q% c& U7 vxmax( a3 U! N5 B7 }5 h; `3 [+ d
ymax
6 h4 U4 U" I) ~6 p6 s+ e9 [global-reputation-list
% D$ ^- p( j' `5 M
: q8 x- {! o z1 l: I;;每一个turtle的全局声誉都存在此LIST中' Z2 s2 _8 x0 W$ Y; t4 d
credibility-list& d9 ]% B$ ?8 B% b
;;每一个turtle的评价可信度7 p9 i% p" a! P G" L
honest-service
/ Y t; `: r7 Lunhonest-service& T1 Y8 S; y, Y. c! T/ X4 e
oscillation/ E; H6 W1 p' h$ F& F0 V5 f/ f8 B0 i
rand-dynamic
' s6 K: x5 M. P/ A) t]) `0 O6 Q( ~/ k+ I1 t8 B3 ~/ a
- }3 N9 @/ m6 t+ Y4 O9 Mturtles-own[
/ C0 U* |* i) y; mtrade-record-all. [% A2 h/ b* t( \
;;a list of lists,由trade-record-one组成
& N2 L9 @. R' N) R& ?( v! htrade-record-one
/ G2 w/ D v+ k) p1 O3 \3 u; 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
6 c) f6 u5 U6 n' h) n8 e1 ?, n! R; T
;;[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 [1 a: F! t0 L- o3 m
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]
, Z$ a ?6 V% e; Bcredibility-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
+ F' l4 S, a* F5 f% U$ Gneighbor-total
7 g8 E5 ?( p" R9 ~* w6 Q$ L( r$ @1 i;;记录该turtle的邻居节点的数目
8 `# `1 ^( I$ g) u! v1 ztrade-time
4 K/ I2 m: C i& E;;当前发生交易的turtle的交易时间
- q) ?: z- l8 D5 d& z% ^) N! Qappraise-give/ R5 I3 _. V) J$ x2 U: W, }
;;当前发生交易时给出的评价
8 k( r0 j! ]- O; V1 D8 |9 M. d5 _appraise-receive# y& F7 m! [% h1 O- v( s
;;当前发生交易时收到的评价 ^6 K% H9 ~( U0 K" r8 [( {4 ^6 U" S
appraise-time
, v( k; P2 h" `3 m/ O;;当前发生交易时的评价时间8 {" z' y6 M& [3 g7 r$ X& o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( _) R4 ?8 G+ c0 Gtrade-times-total
1 ^1 ^5 |& c- J$ Q, y+ ?;;与当前turtle的交易总次数
) }% w3 v! ^, _& etrade-money-total
- \% P4 ~: U' ~! o3 X;;与当前turtle的交易总金额8 u6 h3 g- d: v& \3 g: |" R; b
local-reputation( [& h: X, Z+ }3 ?
global-reputation6 O3 t& F, h4 @) i G' e
credibility
# H Q7 D2 \5 u- g: R: ^;;评价可信度,每次交易后都需要更新
! G% ~5 p; K qcredibility-all
: s, z) U' L5 V;;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 n4 N& |- [& Y7 j5 W S) Q- S. P* i4 Y
;;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) E2 k$ U' X$ \8 f) X* o$ [" ?
credibility-one; {' F. W9 m0 n* l9 x
;;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
0 b, O$ B; W; I# Qglobal-proportion9 a j2 q! c E1 O* x
customer
& I: d1 r# u& T6 N3 Ccustomer-no
9 y5 ~1 ? y# U2 Etrust-ok
# i9 i+ e- l/ o' Z7 ]! K: jtrade-record-one-len;;trade-record-one的长度
! b7 c" ?4 S9 N0 l]
( i; t# T0 t- C- _0 A% w2 C: ]% R, k. N$ z' `+ @5 [
;;setup procedure4 q- p! Q- H c0 A4 Z1 o' _# G
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to setup) G6 Y, ?: X% i; F6 I, z1 Z5 {
7 T5 s& W7 r4 j# x4 lca+ |( j3 R1 T) V* j# _0 Z f
- s+ E$ i1 [- T% d3 W% L
initialize-settings
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crt people [setup-turtles]. e7 w2 T4 i, }7 d; K
8 S, a H) ]8 d
reset-timer
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# C4 f$ e; g9 G$ bpoll-class- l* `0 g0 F x6 y( B# p
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setup-plots
! {" K5 A# k; ~) c
* Z0 @9 w& H9 A# Y5 v8 q. }do-plots
* v4 P+ x8 `5 ]' |0 E. o n9 Yend
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to initialize-settings
9 H+ r" v u, V# y$ e% V8 T
3 w" O$ |3 D0 E' B# q5 ^) X% Pset global-reputation-list []( Q$ e8 v6 L2 W+ |
# ~5 ~7 x/ I7 ~; {6 z9 u
set credibility-list n-values people [0.5]
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set honest-service 0- N) a/ [# \+ [2 W' W# T9 j
$ a6 O2 \/ B* p: m( ?set unhonest-service 0, ^1 f5 k( Q" g" x
2 v7 l; _, \6 W; eset oscillation 0
9 x5 v! k. J t6 }( C( k( z) B5 y: z5 W5 X- ]. i. [/ x0 [
set rand-dynamic 07 e& G C8 o% `0 F# ~$ l
end! O v2 U% F) g; u) d
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to setup-turtles
5 A* w# m# a. u1 bset shape "person"* }+ A4 w+ A" U) A: I
setxy random-xcor random-ycor
- T6 @( q" X e. n8 K) u! a5 h1 Hset trade-record-one []
+ ~( E7 ~. d0 d$ H" M; J+ `7 N( v7 B! t" `; X
set trade-record-all n-values people [(list (? + 1) 0 0)] V4 h* \1 O* [* W
; F3 f' {+ H* c4 z/ eset trade-record-current []
& f, b8 W/ N1 Q! I% L: Lset credibility-receive []
, n6 [" @2 h1 C5 O$ j& l; tset local-reputation 0.5
& m1 d- f) v2 J. P; |set neighbor-total 0( J9 f) _9 e- }+ F0 {- ]
set trade-times-total 0
j' `, ~# x0 Xset trade-money-total 08 ^3 e' ~+ E2 s% _( n8 C
set customer nobody) P! O& b$ J7 _3 g
set credibility-all n-values people [creat-credibility]$ N" n8 a S- K4 I
set credibility n-values people [-1]3 t, G+ u) ^: A8 g& u/ F
get-color
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end
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to-report creat-credibility1 W8 Y( x' ]8 E
report n-values people [0.5]: e# q# g, \) U( C
end
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to setup-plots
$ `3 U( J1 M# M# Q/ l5 U# x0 r9 v% j5 M+ p. P' a2 f
set xmax 306 }8 t F# m) ]$ S& d+ ^; Q
5 ~5 r" V3 o, M1 A2 ^; Vset ymax 1.0. P0 M4 I/ e* G: \$ Q: l
( g1 g6 Z; d6 n3 R7 _$ @clear-all-plots
7 k+ b$ \7 `5 {6 r% r) x' [# E3 U4 J5 m! a/ P
setup-plot1
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setup-plot2
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& F! E, {9 K# Z. Z) P5 \' fsetup-plot3
) p C, Z5 q. L" b3 ?9 }$ jend
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;;run time procedures
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to go
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ask turtles [do-business]" z% ^6 {3 N( q8 @& O8 ]/ u
end
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6 t' J& Y/ W3 `$ Jto do-business
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9 U# C/ o) o5 s9 O+ _
rt random 360
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fd 1
2 y T( K/ b8 X7 `& S" S+ t/ z4 W
1 ~$ ~$ u0 e) e+ E+ u! Wifelse(other turtles-here != nobody)[- M- H7 G" q! i& u( j
% N8 Z4 S! J1 O0 E4 y
set customer one-of other turtles-here
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;; set [customer] of customer myself- w$ U* [- x# X' b4 @2 R+ Y) ~
# ?4 i0 K% F# q/ Y0 gset [trade-record-one] of self item (([who] of customer) - 1)! M% q5 Q0 |6 X
[trade-record-all]of self" Y$ T, T$ ^3 @3 m# q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, H! s) o% V2 Q1 T [& R/ ]
: _4 J# B! L9 Z8 b/ ?7 O9 ^1 H
set [trade-record-one] of customer item (([who] of self) - 1)
1 W! L2 S* {2 V6 S- V1 J4 V/ a[trade-record-all]of customer
; ?0 v% `& n/ t
. z2 y" u5 s8 Z/ t. iset [trade-record-one-len] of self length [trade-record-one] of self* m# F$ s3 [: z. Q' o/ \8 U
; J% J* O3 j( h6 Z& l9 Xset trade-record-current( list (timer) (random money-upper-limit))
; f. e! x: n* z/ J2 E
|3 G9 z" z9 L% @6 z. u5 o' F: B, task self [do-trust], f0 B- u* n0 \/ D# y
;;先求i对j的信任度
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; P9 ~" Q# z" L+ d( N9 C- yif ([trust-ok] of self)6 Q& g8 L n! z# R
;;根据i对j的信任度来决定是否与j进行交易[
) I" ?7 i! d& jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[* w8 Z) d, a+ a4 J2 U! `# A9 e; v* \
G1 e! f: T( U8 Udo-trade
+ I& Z- N* H5 C4 B% A& q4 }' ^. d" a0 p: K2 Z J( M9 U# N- m
update-credibility-ijl( g$ y7 r9 \ i* o$ U w, ^( @/ b$ h" x
3 r2 y! l" s+ ~, A3 u! \& L
update-credibility-list" ?2 }6 e$ L0 n
0 u4 o8 s8 L- ]
3 s$ Z0 W0 }. S F7 F O, tupdate-global-reputation-list
7 V. r2 ^" _4 B' G( C* R P* T+ y" ]4 U0 p* }2 X9 J
poll-class$ o, i1 ]5 ^ \
- i! ~* D' o- @( e
get-color6 p! |, @3 A5 r: T9 d
) y+ r7 L, u, x1 E4 Q! K( r
]]
) B# P' Q1 o( k# V/ W- u
$ |' r$ V3 m3 S3 ^3 S5 _0 q j;;如果所得的信任度满足条件,则进行交易, v4 u3 A3 B/ i$ Q! r
4 v) e- j0 Q) `2 E1 q% l% E
[+ d+ c* |( I" H+ @
- z& S5 g. h3 r( {: _
rt random 360# V9 w& V8 b o8 I1 w/ A O
4 ~7 P5 C# c7 ^1 jfd 1
j# y% ]( h, ^. d, ~/ E2 h* ~8 s( Z. d; [) W% l5 _
]) |* V7 B0 {; u& S9 L6 K
: X2 H$ X: e1 {end& T" d- t- Y6 t/ a
7 G% J( m+ v7 I3 b7 h! \to do-trust
. C. h9 s& `) T- g& N7 Z$ c& ~set trust-ok False1 X7 m; T; M; R
0 s' t$ u# N' A) X
% y# ?3 D, I) K6 _* p8 Xlet max-trade-times 0* g0 s8 e! _3 ]0 g: j+ T0 y7 k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ ]. e/ T, g% D5 n8 U' C) z
let max-trade-money 0$ J/ \( `+ D: v( w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) m. S! l4 \( D5 s. v( _let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 c, r I- t! ?" Q7 f6 {% B* p/ o$ @. ?/ ?
8 E; x( m) f6 A! U- ?% @5 Z9 C
( I' a4 |- ]8 ~0 P9 {3 Cget-global-proportion
6 W/ \& {1 \& O( @let trust-value/ S! x l# l$ D5 L- z
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)
5 a0 u* t2 q& e+ ~7 n k0 Xif(trust-value > trade-trust-value)5 B0 D; @! h0 D; v2 y
[set trust-ok true], q* M/ [3 }7 k2 l; I5 g* T7 Q
end2 }) g# n( } q" J
7 }5 ?+ g5 B7 o X# O9 m
to get-global-proportion+ h- r( g4 N' ^) g# K
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 j2 H, Q: M1 b% I6 G
[set global-proportion 0]
# ]5 c q1 o5 X. _' p: `[let i 0; o" k/ D+ y' J1 }! E; h
let sum-money 0
, h5 v& Z% D9 X8 w; {- xwhile[ i < people]
$ b2 ^: b" u2 D" u. Y! s[
* d( A, ]/ t/ Z7 nif( length (item i
* N3 @. m6 ^6 h' |9 ?' V v[trade-record-all] of customer) > 3 )6 D7 i3 H% \# O( y8 A
[9 V! i+ [7 j& R8 o5 ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 P9 Z/ r# M/ \8 l. C0 d: q
]6 B) z( _& Z- d2 Y" j* u' |
]
) f( ~4 M3 h2 P/ tlet j 0: m5 x. d9 ]0 ^9 ]6 }; s
let note 0
+ _6 M2 ^# q* D* S/ rwhile[ j < people]
. Y) z9 p! G6 X! T. u" m* v& C* S[5 l! y6 f* Y2 E% n+ ], p' W
if( length (item i2 l. O; `5 M& P, R+ L
[trade-record-all] of customer) > 3 )
) f$ D! z/ H1 z3 e[
9 S$ t1 J% y$ t( Tifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) q, W. |+ i. L( W* ?[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 c9 g, F. ~! W ?7 K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: H: F: m$ f- t( y6 ^/ ~
]0 r- v' Z& i( p- O% b. m6 k- |
]2 a( }* R& ~( D; P" E3 ?
set global-proportion note& ]6 @- P) X' |" O# B# U
]
, M$ J5 U) t: uend- F2 n/ E- d( x
0 s; X" A9 C5 O. r$ z' n: Wto do-trade0 P3 B: a1 B: C3 L% @+ I0 n
;;这个过程实际上是给双方作出评价的过程
4 n+ H( h6 a. C1 ^9 Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# f- }! Y& p6 f' K3 _2 ~( Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ ]' q( d& s" b/ c& N- x( wset trade-record-current lput(timer) trade-record-current
2 s. r" Q2 L' @$ h8 n;;评价时间
" L5 P2 | o0 ]0 Wask myself [1 K3 x) J8 r E' Z! a5 z
update-local-reputation
* S2 ?8 J% J3 eset trade-record-current lput([local-reputation] of myself) trade-record-current
, n* [- F4 t9 _! U" e3 O, K: c]
8 _+ k" b5 `7 m( _* lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 E' ]! Q* d) E5 q2 b
;;将此次交易的记录加入到trade-record-one中
) i: P4 T5 E% q# T; U9 E% A ~set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- F7 a8 j& D2 p! x; G6 slet note (item 2 trade-record-current ); B: y2 f. g8 g: v' \7 ?3 \1 C$ [
set trade-record-current
) _( E7 g# ?, g(replace-item 2 trade-record-current (item 3 trade-record-current))
- c& Z6 J! F; F: |$ [4 H3 k2 tset trade-record-current
6 U: h/ T" X) k; n. d S9 l# u5 o7 d(replace-item 3 trade-record-current note)
% W+ m7 A9 P1 i( \' E% |4 |) h3 ?2 i; J% X* a- h
; d4 W8 Y- I: a& A$ y4 w2 U
ask customer [
6 J: o" C8 s1 K4 n1 w% h2 N+ l5 Dupdate-local-reputation) W( b: `# E& J6 @' e9 G v, h
set trade-record-current
Z# p' I$ G' k% v* _+ `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 T/ }& o/ W# q2 A; a
]* D# y% x2 g& ?
( a& O9 ]2 R) }4 N3 T/ F2 I2 W
8 `# h, ^* S4 u# |+ [set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& r2 T; j$ b( P6 S! H' [, }3 F+ ]+ O! P& t
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- j. v7 S e% N( c4 K c;;将此次交易的记录加入到customer的trade-record-all中0 {- D0 X4 z; P- F- W! O% S
end' Y4 i+ R" t1 f4 m- n- c
# I6 Y/ _3 w0 i
to update-local-reputation) \$ k: j/ u D; G0 v
set [trade-record-one-len] of myself length [trade-record-one] of myself
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* Y' T/ s. ]' I5 p, @9 {) l# @3 S! f
;;if [trade-record-one-len] of myself > 3 " G5 T. @4 F' Z- ?2 L2 r# L) G
update-neighbor-total! q* e) ~$ m1 N4 _/ f
;;更新邻居节点的数目,在此进行! l4 b& f R: s" @5 j
let i 3) ?* r/ v' h+ N* Q/ [
let sum-time 0
$ ^3 E! c! W$ }* ywhile[i < [trade-record-one-len] of myself]
, n& W$ j0 y. O[7 L/ _9 ]& E# u* n( ^" w! s
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 v& n7 Y5 L& l9 k7 g7 X+ C9 Cset i ], o" k2 X( G" M: ?
( i + 1)
, `0 h" k& J1 T$ _+ @$ m]6 e8 g$ }- I% j* [0 ]
let j 3" _/ L$ h8 {- u% v, U
let sum-money 0
- J' U. w! B) W9 `- Zwhile[j < [trade-record-one-len] of myself]! a1 b3 c0 _+ m
[, b: _( [9 P- a: L& ]% U$ x$ e" O9 S
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)
2 d; \; k1 n- P0 y% @set j+ @. K; W" C# H( W/ W- V, M# Q
( j + 1) Y! J8 j# F9 I4 g2 y. d
]
4 L+ {, X# y% q, ?( d" zlet k 3& d9 q$ y% y& V Z
let power 0
( l: \" [0 {& p- ]/ Elet local 0
! d+ P* P$ S: d8 _7 w4 r7 F& Xwhile [k <[trade-record-one-len] of myself]. P& d7 M* h0 }+ ] F
[
: b) W \/ v7 B3 ^. G% Lset 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)
+ g7 [1 d0 A% u. ?5 ?) C) wset k (k + 1) e- j* [; u: G, V, K, R% U V
]: T& d8 b8 {! f s4 }7 B
set [local-reputation] of myself (local)( Y( z$ s& R- H+ p" A+ _
end
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% U% {$ N% |) C Q% D3 V2 [9 ^to update-neighbor-total& n- i( m2 s" z+ e+ D, p. t9 H7 Q
& e7 K1 X4 P7 p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 W2 I, A0 C0 X" {
" U! B+ ?! I1 }- z9 T. k6 ]. A ]
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6 |% }4 a) v' e% S6 x
to update-credibility-ijl
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;;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 N6 u& T* }8 q5 m$ {7 Llet l 0
( |3 L6 b2 Q _ l1 M; Gwhile[ l < people ]" e% n W5 W4 C, C& a
;;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8 Q: J" R' J7 F' u& ?# T* T" f
[
, C& T5 G- Q% G: F \7 A. [5 Qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)# M; l' |8 E' @. R
if (trade-record-one-j-l-len > 3)5 A* d* [( @5 p4 C0 `$ g" }' n+ k0 d
[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! n4 {- W; d; s) k, N
let i 3
& V$ L; y. v8 r8 B, b0 Z$ {let sum-time 0$ L% T5 m+ x" y- V% |1 I
while[i < trade-record-one-len]. h* H( `4 j. ]- v; t8 j4 j
[$ @; ?7 [' n& I4 X7 D
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) e* D9 G6 g/ X% H/ Bset i
+ v5 }& C8 }9 I( i + 1), e# L; ]6 X7 d+ e& S5 g
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let credibility-i-j-l 01 V: B# W* ^' p5 ~4 l
;;i评价(j对jl的评价)$ S, s! } e' n8 W9 e
let j 3
; S5 n. o: |* Elet k 4
5 W! Y9 o K0 B/ n1 E! X; q' zwhile[j < trade-record-one-len]8 r3 c0 g$ s0 K _- Y
[
$ m- r' X/ k5 S6 Y4 ewhile [((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
4 v" b, P( i+ U5 jset 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)
4 I. D" q1 D, U, [8 p! M. Gset j5 O/ c1 j# E; {; k! `+ T
( j + 1)
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3 Q+ B7 |' x5 f2 n r( J% |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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) R8 \* M$ ?6 S
;;及时更新i对l的评价质量的评价5 K6 q1 O$ O, x+ N$ }7 Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 ~1 ~( R& a. f0 R" j" C$ l
set l (l + 1)
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7 M5 L1 ]: B* b1 v# T* yend' ]/ b* t. H9 p0 F1 `* B M
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to update-credibility-list- e& Y, r6 H" K+ ?- e# I
let i 0
# r V$ T) L/ ?, C2 c; ywhile[i < people]
; d. o, q, y: L, ?$ T8 I- n9 b6 l( H9 X[
" D1 f ?/ i S( G0 P& ^let j 0
5 k$ H& _( A) Llet note 0
4 [+ K! l/ R) m5 ]7 Mlet k 0
# w2 H w4 ]# v" a+ y1 t: N;;计作出过评价的邻居节点的数目
0 q/ j4 C% f2 m0 @& \while[j < people]" G' b6 W O x( p1 i+ M
[3 J% [6 \! r4 S4 e; _/ m2 Z5 n
if (item j( [credibility] of turtle (i + 1)) != -1)" ]4 r3 u0 d( z4 F9 l
;;判断是否给本turtle的评价质量做出过评价的节点
5 n% o5 K, R# p0 u; v[set note (note + item j ([credibility]of turtle (i + 1)))- z- a+ v# k$ t) t
;;*(exp (-(people - 2)))/(people - 2))]
4 q# o' P8 Q/ U3 |: J- U, O6 tset k (k + 1)
! q5 _. A7 Y" N( o( W8 V2 t [2 ^]
" n. Q# R$ t6 I2 Yset j (j + 1)
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/ e/ P: i5 X" T2 P% R \set note (note *(exp (- (1 / k)))/ k)
1 x$ ^' S X+ ^. Mset credibility-list (replace-item i credibility-list note)% H: n. I* e- u
set i (i + 1)
3 \0 J: k( a& T. C7 I]6 m9 E4 S6 q. l0 w* \4 x- C6 f& {- k+ l
end
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to update-global-reputation-list
' H \4 T5 J$ p, _0 Blet j 0- B& R# B9 F' c$ U
while[j < people]
% `# h! D* x. E2 \6 i4 y[
6 C& J$ V n; u, L' X0 J; S) qlet new 0
* u' G1 L3 h" b/ [: m2 u0 T5 g;;暂存新的一个全局声誉% y' E$ v* u$ M' E6 q3 k8 C
let i 0$ X n9 i. R6 |
let sum-money 0
' J) G- y! b3 y- n1 Mlet credibility-money 07 n) h Z# l% J6 ~0 |
while [i < people]$ O! T4 Q; A( q
[
( m, p4 d) X( Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; j$ R3 @& E" B) ~! a6 A2 Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 c/ f8 a. R# E: Y x9 w9 b6 q! v
set i (i + 1)
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let k 0
4 w, G# L+ F" X5 u6 ylet new1 0
3 V- ?) }# C3 |' G3 Owhile [k < people]: [8 D& ?4 b9 r: [
[
: ?% ^8 t% D) L/ b6 [! pset 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- v V* j' kset k (k + 1)9 \, Z% |. D8 v, i% v3 f& ]/ l0 T
]$ o+ h4 A! h- _
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
Y7 m7 D4 j2 b% g# e: u! {, [set global-reputation-list (replace-item j global-reputation-list new)/ R: o% _+ t8 w+ x: T. m
set j (j + 1)
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4 U( @3 V, y& R! f4 i6 jend
7 d: H2 `# N. a4 q% \0 a& u. _
+ J% [* a+ V; x' u0 F5 C5 G% P. `9 x! B2 k- W7 q& ~. X
' c/ y! s; q9 ^) gto get-color* q: E! q7 Q/ B
" l" v+ h$ O C* P7 ~6 |0 `9 dset color blue
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to poll-class u" n* T1 m( Y9 E9 i* Z: `
end* O! ?! r# J7 c) r, U+ h
& m. Q8 \6 `8 A0 d' a z0 vto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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6 m G, u% x: c9 X! g- t0 {6 [2 fset-plot-x-range 0 xmax! G& Q% {6 n t' M& R$ M
5 p4 O/ i v' S" ]3 @. \
set-plot-y-range 0.0 ymax
& X# x3 n- S+ x2 k5 _2 mend
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to setup-plot2
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4 q: f9 T" a7 }& v9 {" l/ e+ Hset-current-plot "Trends-of-global-reputation"; t$ I4 B( W/ S: L9 L) J7 s
# ~# w( A, `, _2 s, D3 X- a% r
set-plot-x-range 0 xmax
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% \0 O4 V& F, |, o Eset-plot-y-range 0.0 ymax
3 p1 o+ r/ F- T% z& T& }- nend8 X3 k6 k. O8 a8 ^& i& K* T$ O% A
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to setup-plot3) |* r2 q( h4 `4 e! @- u5 F" n6 l, g/ b
7 v; o5 [" t2 m7 B% `set-current-plot "Trends-of-credibility". k5 Y4 N. f( V o8 B- _
$ }/ m9 D" o( ]8 [! l7 O) l& F
set-plot-x-range 0 xmax, U" a) Y# S% b1 S3 e
$ D4 t# K0 Z2 {+ B! {3 o1 zset-plot-y-range 0.0 ymax
( h3 R; a d @5 t9 Nend" Y# p. V5 }9 I! u. O
6 \7 l" l1 y0 b% O3 [
to do-plots
* x2 Q1 p9 `6 w9 U2 F+ Xset-current-plot "Trends-of-Local-reputation"
! V" H9 T) {0 {4 n' v( _7 eset-current-plot-pen "Honest service"# a( Y* E: K/ H0 w0 o |* y5 b
end
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c, x! q) T9 }, [% M1 v% {[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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