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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0 O6 C/ }1 f& a" c1 G9 o
globals[5 F- b' m* L; ^; o* z6 g; Y/ G: }
xmax3 x+ ~0 n1 `9 Q+ L; \0 \& X7 U* F. x
ymax
; M! \. K/ ?! M5 x zglobal-reputation-list
. y9 b" C* P8 x9 _0 [' f/ a
! G1 W0 f5 f7 y; _- D( n2 G5 w;;每一个turtle的全局声誉都存在此LIST中+ Z1 g$ o {$ g/ O
credibility-list
0 c- g+ T1 L& \- `" `9 }7 a( [;;每一个turtle的评价可信度3 f& R8 U% z( n" @) S7 Q
honest-service! `9 D5 ^' y; l3 \' t6 J) F' g
unhonest-service8 o m, E1 u, d
oscillation; f/ }+ D- r1 Z3 A( N
rand-dynamic H( o1 F, z' P4 I
]+ T& ]' j S! r2 X; H. {3 B
& ^) w: ~5 u' i; I; H" Vturtles-own[
+ q9 C4 h; {# T3 strade-record-all
Q4 B! k- H6 G9 O" `: G1 Y$ @* P;;a list of lists,由trade-record-one组成
- M" D% `0 l" k" s1 ktrade-record-one0 c l% B5 Y5 V' F, f% e: _& K
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 v' H. z" Q( a+ ?, O
- s, ^; u% }8 x5 @, ~5 ^
;;[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]]
`( a( w3 X3 E* k5 S5 x8 U7 _* a; ]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]
$ T8 W H, _9 p! i% x( hcredibility-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$ v1 c9 j! o% |% J$ E
neighbor-total8 Q3 A# p) o/ A# z4 L
;;记录该turtle的邻居节点的数目
6 d, u, ]- r& ~& atrade-time! y5 ~+ l, o$ O
;;当前发生交易的turtle的交易时间7 n5 w/ F3 Z5 |7 u9 K
appraise-give4 s. D5 }" |2 q4 Y
;;当前发生交易时给出的评价
/ C& t/ I4 c* zappraise-receive
" y6 a7 |& z3 |! `/ S;;当前发生交易时收到的评价
; k: v7 g( d) E8 g. nappraise-time
|' y6 B' j5 a;;当前发生交易时的评价时间3 O4 k* g* b/ B; g7 Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 u6 j3 G V5 p; ]% y( u7 l. Mtrade-times-total: ]4 q5 s$ l9 x p" R
;;与当前turtle的交易总次数
, [' L% e/ F4 btrade-money-total( W' F8 y( F; T( N) |. K+ G
;;与当前turtle的交易总金额
9 [0 H/ |. q, y3 \% ], T/ ^local-reputation
! g4 ^$ R9 }1 H9 l' T7 J- v& [global-reputation6 ?3 `* c; `8 [6 R& d6 |
credibility
0 t% K' U8 ^+ [9 m;;评价可信度,每次交易后都需要更新
2 m+ F7 B; X4 u9 y" P5 Q* F$ h6 ?$ qcredibility-all
+ m1 p: e2 M1 X' @. @;;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& K! S) ]% L: Y7 p& D( l
6 f& z8 K2 \0 Q- W* J' \;;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
I5 C: Z: c8 Y2 L/ ocredibility-one
" J9 t% T( {! B! {* K;;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8 b0 a2 _4 J9 i: H4 [
global-proportion
! [; _. @( A1 U: h+ g% y( Qcustomer( h% }. d4 N3 i) J4 m
customer-no/ f' Z* p2 ^- F. x6 P5 G# U
trust-ok& y$ j$ g& \2 X5 h% n0 H8 L
trade-record-one-len;;trade-record-one的长度
) w) q) F; s" O! L]
% s9 M# {( l9 q' [) V3 Q* h9 X' ]& `* M- s
;;setup procedure) Q! o% U" F) u& L6 Y4 j' j' C
: j8 Z! m1 ?8 X" s! I* m4 wto setup, ?! Y1 `- k5 J I$ Y- x
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ca" T" ^5 A1 Q `. N' \4 g! S9 E% {
+ o e* q+ n3 a0 p: B$ i8 d. E* o7 W
initialize-settings
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. D' R3 E' @' C u" Zcrt people [setup-turtles]
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reset-timer% T7 _: |% \! I2 w
8 u. ~+ @. M! ~poll-class
* i5 y7 g* ~1 _+ y
/ x; r" @! l& [& R4 T4 X2 O% [setup-plots
2 U8 o) }2 I4 {/ {* ^3 f+ K
) @7 j8 s2 m" C. ^/ R, ]' ido-plots
8 i5 l( _2 G- t' |end- p2 H2 e) H! S4 p3 ~1 [8 T
# p2 T; k- t! q' ~) P7 D
to initialize-settings
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1 p# _( p" q+ e. l( I9 |set global-reputation-list []
x& @) H% ^! Q* s* i8 v" A/ `0 A5 F/ Y9 B( c; y6 A5 t
set credibility-list n-values people [0.5]
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set honest-service 05 g+ w1 J/ O* r6 q: t
3 M+ P4 T; q+ r8 U0 A7 A+ }
set unhonest-service 0$ \1 C/ b& x' o& T: ~+ B
; O: r9 D/ V' X# x- [* O
set oscillation 0) o$ u9 ~' ^& E/ a, z, @- T% [
9 t8 `( t* W6 E$ K% L0 a! I+ U. ~2 Fset rand-dynamic 0
+ O& E% V: G& w& xend( u! A" S4 p2 s" H
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to setup-turtles & ~9 V2 ~% o: t% Z" P2 m
set shape "person"
2 ~+ T. l- L( A% {0 I$ \setxy random-xcor random-ycor
2 p6 B4 _, L( ~" r- Fset trade-record-one []
. m7 ~+ y! x6 g2 y0 |
9 A8 S( G8 _ Oset trade-record-all n-values people [(list (? + 1) 0 0)] / H6 R4 B( D0 ~5 a$ O
0 R3 K) w* P3 f; p# k# x2 Y) |# N
set trade-record-current []
) u; o/ n$ u2 y; d+ c9 zset credibility-receive []
. O# n& w5 q! ^* p8 yset local-reputation 0.5: k; d1 @9 q+ P& U
set neighbor-total 0
2 e4 N1 i. N3 p' u' Xset trade-times-total 0+ s! o/ m8 D6 U( w3 [
set trade-money-total 07 U- _) K. R7 R3 x* V8 @4 f6 U/ \
set customer nobody2 ?- i' y* A4 p( q
set credibility-all n-values people [creat-credibility]0 |# z2 L y, C# x6 T& X# Y
set credibility n-values people [-1] Z0 \ F7 C4 {2 O4 U6 S0 |! S
get-color' T2 H$ g! w. B4 Z3 n/ ]
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end; X+ D% z6 Z" Q3 p5 J
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to-report creat-credibility
0 h u: y/ l" z- S8 y2 lreport n-values people [0.5]
7 w4 k( u- @4 d* i/ y, Z; xend9 Z# x' U' }1 H: ~. Z) D5 M6 S
$ F% w3 G3 `4 B% S
to setup-plots! P. I$ [; d) Q" N' b
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set xmax 30
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set ymax 1.0
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clear-all-plots3 ~3 i! p1 K& Z: `5 v3 N& ^
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setup-plot1
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setup-plot2
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setup-plot3
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4 z, `1 V( c4 R, n# z;;run time procedures
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to go$ [( l) i/ o" ]& M
p) f% i* C* p5 s. u; Y
ask turtles [do-business], k. T7 l0 w/ }* X. |
end% b- x2 f5 b/ C
" J7 p0 f& A3 w* [! {# \5 Hto do-business ! V0 l" u3 c# o( n* | a
7 g! r/ C5 {" u6 ]0 }" B1 D( i2 ~& g5 F* _' b, M1 h: C' [+ M
rt random 360
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fd 1, h1 _0 w! P% G# s! u
4 }. E. s1 d: P z0 g$ T9 Q* H* gifelse(other turtles-here != nobody)[0 j2 Z/ L1 r+ J- f
+ T: u: W; o' C/ E* X6 {/ Oset customer one-of other turtles-here8 T" u, z+ z. `
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)% ~$ g1 ~, x! t: x# i3 q
[trade-record-all]of self
1 F [ d# i) J/ \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
* S) N7 D' l% v" Z: n- `[trade-record-all]of customer
9 x) ~+ Z# q* \9 E. m6 ^1 I* h& R: Y4 A! B" H% P
set [trade-record-one-len] of self length [trade-record-one] of self% M% x/ m# Q& b! S- p& Z
+ M. S( V9 _) B$ u* Fset trade-record-current( list (timer) (random money-upper-limit))
2 R# ]# \- U1 d) z J4 \! B
, L O/ ]' U& a- `( {7 J+ Pask self [do-trust]
0 n8 H2 d$ I8 D: W, n1 V3 R;;先求i对j的信任度2 H! a/ m$ o) x& J% K( W( Y* m: U& L
/ q" g3 T. o9 ]; i) K# z
if ([trust-ok] of self)# z7 ?2 Z* k8 w" d8 d
;;根据i对j的信任度来决定是否与j进行交易[
/ F- \1 L1 x1 `/ L9 Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[ v4 B X, D9 L# _1 u' y/ g9 b
. h# m. c) c6 ~, F, C" a( tdo-trade
% M8 N# p0 C+ Z0 W; K
5 Q3 Y& A7 Z8 e. z- supdate-credibility-ijl) q6 a( K2 m# T8 J9 K& o3 O
# n0 O# j2 U# \: D6 ~3 e o
update-credibility-list
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update-global-reputation-list
2 j- y2 @. U/ I* w) f' {# D
: a F9 V4 ?1 r; p0 D' N& i4 {' Upoll-class7 U* b' j1 V' T N& y: [
' O- J. v$ f" ~& R: H) s% k
get-color( K) z" D9 w$ L3 J9 b3 t
2 A7 ^3 m* q6 \& A' o) F]]9 u+ p% o3 V. i7 R2 I+ W
/ v0 x( @+ }1 s# ?) x) m R
;;如果所得的信任度满足条件,则进行交易1 P6 n: h/ v- }7 Z
- M) D O2 R( X: S% U6 N9 ][% U% v3 _$ }3 X2 R, A
) V% g; W- j' P+ L4 ert random 360
$ ^$ f" [/ W0 b1 g a9 n& D, p. Y P9 u# K! ^
fd 1
# `6 m0 ^2 d0 D2 J* E& ?; R( l A1 h" [9 S, K: P* i9 U
]
9 O5 v; X& \ j; `
8 I, w& X' \1 u, Hend
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to do-trust
; l9 `. N) E6 a- V' R. L- N$ Y! Hset trust-ok False( `% K4 Y6 E$ T& O
( Q& v% H4 M# R. S* O2 F( |) A" R' E! w4 x
let max-trade-times 0
: n* t) A |" Gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ h2 ?7 G2 v9 @7 Klet max-trade-money 00 O/ z6 Z) F6 F, J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 ^5 K/ i! Z9 q2 C" wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& H* \. R9 r0 a/ h9 z9 N
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get-global-proportion* p$ u; P9 V& V ?( u+ ]
let trust-value' y, m5 V8 ?3 u1 d1 `, Z/ K
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)
; F4 Y; @' ?9 R0 s3 O( O* e5 }if(trust-value > trade-trust-value)- \8 d( K) J0 Y* q4 G! Y6 v
[set trust-ok true]( n8 q$ Q$ z: [& o& k. J3 k
end" g; b& f! t7 @7 @/ z+ E
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to get-global-proportion
! E' U+ O; Z: N# M* d, r Hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' L. O# E6 D1 v3 f1 t% l/ K H! G' A
[set global-proportion 0]
. q% n) N* _, R: e* ]- F[let i 0. g* M% z& C. J" i2 b$ P" l' A
let sum-money 0% e( |& t9 q/ E! C: o
while[ i < people]' L* R" q$ e4 w5 u9 v$ f2 n
[8 N! F/ Z7 M. W3 A2 V- M a/ B
if( length (item i4 a- E/ F- M( i
[trade-record-all] of customer) > 3 )
X9 {3 |3 x+ ~; k9 C& a U6 [[6 n# ]. u+ \; N' C
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 H. E9 r( B$ D
]) b# p* f8 X2 m" G6 l( A. k6 k
]
" U& K6 V9 q7 i3 T4 v0 f f2 @let j 0+ B P/ A2 @% q9 h* G: g# V
let note 0
- |6 w9 b' {, c' c5 W2 ?while[ j < people]* {. C. A2 }2 K6 i: u$ v6 @
[3 R+ h3 I5 R' E' ^5 ~
if( length (item i
, v8 V4 X8 V( p[trade-record-all] of customer) > 3 )1 k9 S4 ^5 i7 Z+ I1 ~5 V* h& i! ~
[. d5 t f& I& ?
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 a- v5 ]( ^8 r" g" |& o[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 A$ Y7 d7 r, M: G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. D( z- G! S9 n4 R
]
# S# [4 i* I9 Q]3 A( l% w4 L, F. ] O
set global-proportion note
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/ l# I# r9 G( M" k+ x- uend
" {; l9 A, n6 D+ q, P( O7 z
) U. R' F2 w9 C/ P5 v% Y: P8 qto do-trade
% j2 w) H. _3 I* L) [9 s;;这个过程实际上是给双方作出评价的过程
5 D/ ]# N& C g0 _* T) J2 K: aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ x7 \5 O( d( i3 ^# G5 M/ J3 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, v: i( w0 R: t' | p9 K7 iset trade-record-current lput(timer) trade-record-current
. p+ d- B1 s' r( i7 P* k;;评价时间
5 i4 s6 r5 Y$ c7 Hask myself [
! B, V# k8 l. @6 q; S9 T4 M* I6 K3 Hupdate-local-reputation
$ q+ `. P2 P" L8 [8 ?set trade-record-current lput([local-reputation] of myself) trade-record-current
, d5 S) Y( o, o' J$ S]
! _8 Z! P. @) w* O! I) dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 t& U0 {) }; \3 V* k;;将此次交易的记录加入到trade-record-one中
9 j, `6 ~; t; A, fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). ^2 [- i" |) i7 _* \: m! F( t
let note (item 2 trade-record-current )
5 l& s) V- \9 o8 J4 ]/ s" nset trade-record-current
& Z& E( e5 O- e' q(replace-item 2 trade-record-current (item 3 trade-record-current))7 K- i9 M* S% _
set trade-record-current8 S/ m L* h/ H" L2 E; p
(replace-item 3 trade-record-current note)% B; Q: x1 {- }& S( d) n
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8 U# U( p% \ y+ m5 Lask customer [4 Q& |1 Q% N3 a8 `
update-local-reputation
1 E% c' f! q+ J. aset trade-record-current
# @4 O1 n% g9 z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- a# U$ X" y7 ?7 Y2 l! r7 }]
4 [* Z! g% y- w; v5 v
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1 z' `, x5 u6 V3 Nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% [) B, ^0 a9 @1 H. V, W& P1 ~5 c8 {3 ]! o# n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 E& g+ t* a c4 ~+ c% ?* M;;将此次交易的记录加入到customer的trade-record-all中
+ f b7 `$ W n% [; _7 h' @end( S8 O4 h* \$ Y/ S, M6 W
0 X/ m6 @& f- D( a" E, Fto update-local-reputation
; g* E( }2 t Oset [trade-record-one-len] of myself length [trade-record-one] of myself
1 k9 W' |. ^: s% |- T, ^, o) M* h; {# S( A0 F9 h$ d
/ n8 }/ O0 \$ _& c0 _) ?;;if [trade-record-one-len] of myself > 3
+ V- z7 P' N7 s7 a, _; Cupdate-neighbor-total4 U. K M: G7 o$ r6 v
;;更新邻居节点的数目,在此进行* q K0 o$ S+ f) w% H+ r m
let i 3! \# ]8 Y( b' T
let sum-time 0
3 N6 C3 U( x0 q# n0 X% nwhile[i < [trade-record-one-len] of myself]
0 I7 [9 h& P% ]. i8 t5 l[
! w! p- @0 s9 O8 {1 P( ?7 aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 i( s# D \: s* F
set i( h# j+ e w" Z- |
( i + 1)
$ [0 j. s) f, a1 H5 u6 y8 t$ y0 t]4 i4 ^9 |* b9 Z. L
let j 3, G p8 {& P1 g2 U, u
let sum-money 0/ W4 O! e% x8 ?( m1 @ T5 Y
while[j < [trade-record-one-len] of myself]( @! ~. P; i* b# v
[
: T% x8 W, p$ M9 _1 n& Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)* v7 J1 v: ]! H& W. j f9 h" ]
set j
# a1 D, z/ X$ j+ v; d" y3 q( j + 1)
* Q' `! E4 S3 x4 v: [7 _# D6 h% ]] M ?9 c3 A. @' q% {% z
let k 3
M% T! |: l6 @: U7 S6 Y. d, llet power 0
* O" S7 K# G+ c/ _" W2 Flet local 0
$ H; Z" w3 f4 y2 s5 k# j4 ^' @while [k <[trade-record-one-len] of myself]
! h' v" I2 r( w) j& Q[
/ b* U+ k- X9 \! X4 O0 f, Sset 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) + Y4 M, W% l9 k! E, k
set k (k + 1)& P! L2 G8 m2 x. ^3 v
]& p* {; }. H4 R( P1 I. ^4 f6 q
set [local-reputation] of myself (local)
M' z( y& F7 T( K! qend
. t+ C0 Z2 \9 ?$ ~" w9 _# j9 ^& U
" |4 u( x% D: @: ?6 |to update-neighbor-total# T9 L6 w! C# t) \! ^8 u# [
6 A6 @- A, j5 z/ gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 X0 Z8 }/ A: u+ K9 h$ U& m. i/ A
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6 T y% d* r6 ~& ]. n0 lend
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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。- s$ ^6 J. f; X) }! z9 o6 S
let l 0
$ C/ `. P6 ]6 X. t! C. s0 B* kwhile[ l < people ]
- n6 n- u% b0 d" |- e7 X0 c( b;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ q) O N/ M' Z' i6 a; rif (trade-record-one-j-l-len > 3)( H# s) j+ M, U/ ^& F7 j( ?- F
[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
* t1 W3 h- a6 b0 C* b# m4 Rlet i 3
2 v' u- Y. P3 @8 t8 klet sum-time 0
* y8 j+ m" |6 D9 B1 p- m% twhile[i < trade-record-one-len]/ _9 c# b6 d$ o. K( [, d7 f: z) H" o
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 _) D+ A7 F7 V8 H: @/ J; `( @
set i
% I3 }0 M6 H; ^) H6 o1 `( i + 1)6 A9 ?% A0 L4 j1 W' C
]
& h% r P. @% ~ |let credibility-i-j-l 0
( Z6 x5 o, D! W7 Z;;i评价(j对jl的评价)
I/ G- d1 W& F8 B# D s- ]& Nlet j 3$ P! I# d4 F3 j4 m" [' @
let k 4$ V" a, e5 S6 Z/ q* B: ^
while[j < trade-record-one-len]
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5 _5 Y2 Z. j( ?% {5 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7 d" v. I6 E- m0 V3 r, N% E
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)
: X7 E; D9 J- \9 {: f1 F! c5 K, n8 gset j
. `7 s- L8 c; q; e9 C( j + 1)
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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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' @8 ?7 D) {7 [0 C1 D% Slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( k4 }& I4 q Z8 E$ E;;及时更新i对l的评价质量的评价3 g& }4 b2 V H6 ]+ j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: {- Q+ d: i B9 ~. i7 Dset l (l + 1)3 D% |# r, k4 w$ w, y" [
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end
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; b( f1 R5 ?" k. [$ `' S& |% X- [9 yto update-credibility-list
2 V4 z" g2 E9 X7 m8 {let i 0
! W; A6 X5 \4 Z% u; `while[i < people]- a5 u, x9 v% x" v* `
[
7 O: i u5 t+ z0 Klet j 0" g% W( q5 d, Y1 L: ?2 ~4 d5 y
let note 0
4 }) F5 v, j w9 E3 {; ^0 o8 _let k 0# e3 b: M! x5 @8 I% M
;;计作出过评价的邻居节点的数目
; d% c. \- g8 `while[j < people]: B8 K/ P+ w6 G( q# K7 } N
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if (item j( [credibility] of turtle (i + 1)) != -1)* K3 K( m' ?! I4 G
;;判断是否给本turtle的评价质量做出过评价的节点+ V8 G- I, `& s( ^0 {& V/ g
[set note (note + item j ([credibility]of turtle (i + 1)))
& T3 E i, j# V8 x: E/ Q;;*(exp (-(people - 2)))/(people - 2))]
7 E r9 P# a1 H! R8 q8 _# \set k (k + 1)
" L5 C: J4 ]3 J7 s6 D' @+ {# |]
, q( ?" n& i, S1 m& X4 I9 J8 n$ Hset j (j + 1)% E2 K/ O8 y+ o: F; T% P
]
& U Z. s. E: r/ k6 Hset note (note *(exp (- (1 / k)))/ k)
' [4 P9 ^3 \* q1 h& e+ a/ F9 j6 Zset credibility-list (replace-item i credibility-list note)5 i" R# x$ I4 B. I2 p2 x& E
set i (i + 1)
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$ H6 N1 S0 Z6 b; Cend
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9 e8 `! j. v4 C. I, D& x& Jto update-global-reputation-list- F, Q+ V" I$ P3 _1 e5 J, u6 {, g
let j 0: t4 Y' C- R/ e6 v1 o: A$ b
while[j < people]( s+ f$ i: }- H8 @
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let new 0
8 H1 H. ]1 k) `$ w" l0 V* N;;暂存新的一个全局声誉
* A8 _/ H; L4 q6 x$ }) ]let i 0
% B. F* y! T" |5 C1 q; f# D; klet sum-money 0 }6 T$ d& b0 z- U1 A+ P
let credibility-money 0: X0 F" Q' u; D" S+ H+ c
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 i6 m% v$ j! n- g% j: xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ Y. l- K: ]& e2 X& e& O( fset i (i + 1)
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/ _0 ]$ s8 J# P. glet k 0
* _: z- f0 e6 m1 J/ Elet new1 08 V/ Z7 }. t' i; n
while [k < people]* \; h4 l4 K" A5 q, b
[9 y/ |# L; Z% ?
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)& X: C. @1 V# E3 m9 y
set k (k + 1)
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; z& x5 ~" ?3 A3 `set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' D n8 Z2 I: k8 R* K s9 ~; s* [, rset global-reputation-list (replace-item j global-reputation-list new)
9 `4 I, p) ~/ p" A Fset j (j + 1)0 \) b" {% n: E
]
6 i5 W- S2 z5 T' ^2 F0 fend5 N: S9 i9 i& M7 ?
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to get-color
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X; u/ S. w* j/ e' Tset color blue9 ]( M: g( `/ g; N% q! w8 [- Z
end
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- D" Z _0 f7 p2 t; c0 N' ^* lto poll-class2 l: }$ {4 ?: ~3 G% ]6 x+ r) u
end4 B( k1 Y e" p% B4 G/ x6 k
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to setup-plot1" }6 S( d K$ u) Q( `
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set-current-plot "Trends-of-Local-reputation"
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* Y4 r6 e, Q! P! @0 V! v3 s0 H% Pset-plot-x-range 0 xmax
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) w- V' l+ ?( C" k% a+ S/ _! _: aset-plot-y-range 0.0 ymax# _3 |4 {& g0 U* c; N/ p
end- s7 H, G! v, \% L
$ E8 S6 X) B; y& ito setup-plot2
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set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax9 L( N# a* J( ?( _/ e# }
end
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4 Y `, J8 B, l% F% i6 m2 I/ yto setup-plot34 q# J; X' L9 H1 ?
* n3 u- f9 ?% ]8 H9 T2 f; Z! E9 cset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax3 ^" A. J& Z; ?( b" ~
% U+ B9 Q4 V G& u% T& M/ M; ~3 I# pset-plot-y-range 0.0 ymax, k0 U$ A) A8 O& K" `4 ~
end
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to do-plots9 A9 c! o7 c( q( f: e; ?& e6 v
set-current-plot "Trends-of-Local-reputation"
- n' [; R2 H2 F" m8 P9 }1 nset-current-plot-pen "Honest service"' V* Z- a: e7 `" @7 ^
end) U) X; d& w7 ^
% Z- s) ? x6 N6 T z* ?[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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