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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 e! c! O: T) o. `8 e
globals[, U+ E6 U2 g# k$ t3 j
xmax! [; ~9 P2 k* ]- ]+ s# m9 F
ymax" b( {" j- s7 l6 P( r" ~' e
global-reputation-list
/ w4 x( _6 G2 X. p) }
: [6 v& ?6 t, O: O7 C" p$ F. n$ c;;每一个turtle的全局声誉都存在此LIST中
5 p/ Q) K" M6 @3 p- Lcredibility-list8 ~6 n2 n, G' j- ^, o; u
;;每一个turtle的评价可信度
. p; G2 L7 l. j& {6 whonest-service/ ~& s a( ], @* X+ ? A1 {: b
unhonest-service
/ R" O$ E5 a) n! ?% Z0 v3 l; [1 Ioscillation- H% L% x, \) K" |, n; |0 @
rand-dynamic2 n6 h' w2 q6 J9 J8 k7 U: H0 p# R
], y: Y n. M3 X
7 J) c; h! \( C/ v2 |+ R, Y/ vturtles-own[& b/ _- I; ?7 V# a0 ^6 L0 R- r1 Z: G
trade-record-all$ O$ P' {& D% U8 y+ ?1 G" U
;;a list of lists,由trade-record-one组成6 K( P. |6 w! P6 A- H
trade-record-one& M: @* w3 j$ {1 r
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! W$ a# ~% f- w+ ]# Z) h5 ~
: K6 k1 U: w1 m% \. P
;;[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]]. N4 ]5 D o! s n
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]1 j% u9 ^' ]) ^ s$ E
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
3 c m6 z2 w' c6 T4 K. Wneighbor-total
% z! H# j& c8 x% O;;记录该turtle的邻居节点的数目( `. @8 t/ J( U% N- O
trade-time6 {" y0 M7 k' s6 ]. X, P( e+ c; r" ]
;;当前发生交易的turtle的交易时间
# |$ U" X. L# E: E7 {appraise-give5 v- _+ ^, G3 w3 z+ R; O/ ^
;;当前发生交易时给出的评价0 s/ P( D- w9 n7 a
appraise-receive
/ i2 V( P" Y3 Y: q# R) C7 ~;;当前发生交易时收到的评价
5 u; w; n2 d; U9 n7 ^appraise-time
* V# j- ?6 J; n# i7 Y; U9 e! l;;当前发生交易时的评价时间
% h; E: E8 u1 L, }local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 e, D z4 L7 d. k* T; Jtrade-times-total
' |% ~' |; [" K9 i. M" `( v;;与当前turtle的交易总次数
0 N# y/ j! l9 y& J* xtrade-money-total7 N* Q) `; q; [# J% n. D" s
;;与当前turtle的交易总金额
w" L, T$ [' b( u8 v0 M0 clocal-reputation
5 ~1 \; M) `/ e( a* o7 D7 nglobal-reputation
6 ^4 `$ s9 g+ L ?! xcredibility+ c0 t* e) p- g3 H( s
;;评价可信度,每次交易后都需要更新! C+ x& G D" n, _: a/ l
credibility-all
8 l1 J A* u4 s0 B;;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
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( Y; t2 \9 K# l2 Y/ N) ]* s1 {;;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- w9 v# M- H7 b6 Y4 S
credibility-one! N% D. T H i8 x; j
;;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4 b: Z8 K, s$ v) m T4 j$ \
global-proportion7 ?) X' N2 X* L5 ~/ B" D
customer
0 M2 [* F- w$ ncustomer-no
$ R& C1 P. V: F6 \% M' Ltrust-ok
. Q1 O J9 r, o9 O. |% y! \trade-record-one-len;;trade-record-one的长度
8 b( s& u F. F) V# `3 S. M]7 C4 ~2 w2 S* a1 [% \4 z+ D3 _
4 W7 n) `' R! u4 c* X! u& u;;setup procedure
& `7 v: s8 Z& s5 z/ O$ w: Y3 L" A0 x' j! |+ t) I2 C
to setup' @' L$ g& Y, q3 _+ s
8 o5 J) B0 t! B1 c7 eca; W; W& j# j: W3 v4 m! g
; K# p6 p* i- N: F* ?$ c7 L* ^& Vinitialize-settings
' z( ?) L# v; n
. \. j6 b% I! R/ N5 k# ?1 u0 ocrt people [setup-turtles], l+ v9 W4 y( |* }
" N% p. @5 S( y9 Q/ Lreset-timer0 g- y& V- n' s* U! p) D* K4 m
* N }0 U6 V, R4 wpoll-class) K2 M. T% @$ g& f- {
; q- o) q5 e3 S' N% d4 c2 ~3 Asetup-plots
$ J, g& ?( }* }) f1 S
2 g2 f0 T7 |2 l: [8 edo-plots
/ ~6 ]0 H* J2 j+ z; @& z Vend
' v9 f- A5 C" i ^4 [# g: D6 ]% V5 s. [ J; n6 ?% ~" e6 [( d7 ^ ]7 w0 f
to initialize-settings% i$ N" G9 n2 g" y3 G
4 t) Z, y/ o8 F; t2 E' M: p' G, ~set global-reputation-list []* s1 b2 r" }% U9 Q
3 P, h) F0 H3 G, g* N
set credibility-list n-values people [0.5]
+ i& J# H$ Z, c; W! Q- M3 ?6 L7 m. e0 G
set honest-service 0, N- O$ {3 u# F& Y+ B% l2 ~
$ X" ]$ X/ X( y1 t
set unhonest-service 0
$ P5 U6 ]; c! {) S9 M
8 T$ p8 v, F$ }' V+ W5 t, Sset oscillation 0
, z% [, l! ^2 s; g% d: z; g- `) A" V' `) Z: I5 ^) z% p+ n
set rand-dynamic 0
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0 }- H3 {( W/ M' F% V7 K! e$ y% c/ mto setup-turtles
% e: q: J. N& l* e* }set shape "person"
- J; v1 }% \/ s4 y6 Msetxy random-xcor random-ycor
: s- g9 N- `+ z. g( c5 J6 P2 U) c% r: Uset trade-record-one []
" R- ~/ Y- X) [) s
4 P u1 O9 w: m$ L/ B2 Iset trade-record-all n-values people [(list (? + 1) 0 0)] . E' n4 l f+ E; ]( ~: W; @- {- m
, [# k. @7 }% W4 `% d @0 h
set trade-record-current []; Y P7 m% R8 p! C+ B0 m( }
set credibility-receive []
5 _, {: R+ o( ~9 Z' jset local-reputation 0.5
6 ^/ `; i! A, U" I5 Q3 _set neighbor-total 0
- z" |; l+ l, \set trade-times-total 0
/ T/ F6 \1 ^ s1 c% }" \. h% Mset trade-money-total 05 o" g0 L' F$ j4 s
set customer nobody
8 d/ Z$ q" ?+ I) j+ }( R8 d( Gset credibility-all n-values people [creat-credibility]5 r, T1 b! U# R
set credibility n-values people [-1]
, l' _# Z& W: z8 f3 }) S: {- J0 dget-color
/ U. m# E- H8 J+ v% t/ N
* [5 g4 z1 s' O5 ]* N* P$ @end
/ r% N% P3 D% k* r
! d! G9 t* k1 e+ [; ]; [to-report creat-credibility- J2 N0 F3 `' N, W
report n-values people [0.5]
; L) `) |% ?, R8 T) n5 H ^end# X J% {9 p5 S& t
5 U& t1 H4 [8 g6 A& }& E; M" c, Oto setup-plots; P7 Y* f9 w7 M7 z( m8 H
1 y9 G5 {7 _, R/ a6 g }8 jset xmax 30
8 y5 S ?" D7 D0 @4 n) Q+ ?$ B
set ymax 1.0
U/ t5 }2 L( H: K. u$ `- e/ r" n8 w! J) _/ Z# ~; V0 L
clear-all-plots8 U& D4 G4 O, O
# k9 S& h2 i w# o# W7 T
setup-plot1
- \: a" @ [/ V: U; n- _+ ]6 i4 {# d! B H
setup-plot2
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setup-plot3- M0 `1 G4 q* @+ @2 U* o. u1 }6 }1 E b
end
0 }6 U- ]) h0 V1 G+ j- \( g6 Q. [2 t0 w. r5 B, K
;;run time procedures( z& |1 ]; \8 D( d+ Y
2 `; T+ m$ D3 f# xto go$ H) d+ J. `6 h P# Z. W
8 W. H" o) ~0 P6 X/ m
ask turtles [do-business]
, x0 C9 w! H4 B, t! \end8 Y2 S" F/ \1 C) {* ?) |
/ I& D; d; k; L1 M9 f' sto do-business & ~" ?, @+ t0 C" ?8 H6 a6 P
: b m: \0 \8 p, G5 y& J5 W& X8 U% {) o2 k. W: m/ S
rt random 360
+ T( g- U8 @8 _9 k' H8 M" T- p) o! @( S% h" d0 a! X
fd 1
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4 n H* h( ^% f+ Y4 bifelse(other turtles-here != nobody)[8 c( t' K7 m( u8 ]
( f5 c: {" ?& lset customer one-of other turtles-here
/ ~6 |- u' z; S$ _& ^8 ^1 P3 t# o9 H! Y
;; set [customer] of customer myself; N+ P( y1 L! _* q
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set [trade-record-one] of self item (([who] of customer) - 1)
) {; N: k& a. u6 p4 _5 V[trade-record-all]of self
% ^( z0 @$ q/ A1 E# d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 y8 z" _+ {4 @/ v
. y+ [* f, W' z+ i7 I+ bset [trade-record-one] of customer item (([who] of self) - 1)
/ m! m6 }- Q H. w3 `7 H[trade-record-all]of customer
9 {! V/ O/ R6 O5 @ p; f0 K0 c
set [trade-record-one-len] of self length [trade-record-one] of self
, q5 m: I* |& H
% b' M) r# L; ]- ^: z3 I1 _( J) ?set trade-record-current( list (timer) (random money-upper-limit))
# t( g( t/ B0 U, W7 L! L, O
( r; Q6 y! ^ j, I( m+ ^ask self [do-trust]
: R4 ? C+ O! F. w* S, V" O8 v;;先求i对j的信任度
- r8 V$ D; N( V1 j9 g7 I8 M) K5 h/ G0 S
if ([trust-ok] of self)
9 r# o# \" y% U6 C9 [;;根据i对j的信任度来决定是否与j进行交易[
% B( x5 a- p- x2 h/ {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. P- ^8 W: r% L! `7 Z% p; v& y0 c& q" }- M+ v7 ^' A
[. Z/ q9 C/ I/ o6 p' g# m
( a5 R8 j: Z4 b& \$ J: ~+ Z5 Q( Cdo-trade- d" u( S) [& y1 F1 T
$ q4 V$ ~# r- w1 i# \! m, q! @update-credibility-ijl2 h( A- u; i* ]' \
5 E; G( D" @1 A! Xupdate-credibility-list9 P$ S( f8 @5 @3 s! t8 L) K+ z9 c
6 E9 s: W$ d, P3 Y$ ?3 j
4 E! g# B9 K: Aupdate-global-reputation-list
3 g, B1 e/ [ |# r& Z9 d
' [/ l% ^4 O9 m- ~9 M+ s5 b3 upoll-class
* L6 _& v$ F4 A7 D' A0 ]
: @) T2 ^0 M, `5 E7 v- X9 g- yget-color6 v1 L2 M7 s. u/ o; j# ~
! f# P. A. @9 G2 d" m$ m) w
]]( e0 U# d& l& F9 k6 r, U3 \
& E# R7 O/ l3 k
;;如果所得的信任度满足条件,则进行交易( r" i" V `* |. w1 p: f# ]" J* p
9 c" P3 I4 H5 e' s% u[
$ U6 v# c4 f7 Y* h& _' n) i* [+ ]: B2 ^; E' J& B, B
rt random 360* d8 ^8 E- G* A. v; u* ?
4 l8 e* h5 r$ ofd 1
" {( P- \- e( P; {
! S- ]% M2 y' b! a]
/ j( \7 r( c+ {/ r) X/ {6 E: z: s, Y
+ y! i4 d4 j9 @5 H. F- rend
( z! b( R$ l1 p& `# f; x+ S" C' Z" {- W) z
to do-trust
1 p/ c# D. X7 oset trust-ok False& v/ o7 N: K$ |* T% q; l$ {. c% c4 x1 T
2 v7 w: i( q, P: B0 K. n6 n- s; x/ ^; G! i
let max-trade-times 0, F, s; T, E5 m2 m% C6 ~; c
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ {' y* W5 ~% ?, T) u
let max-trade-money 07 Z3 C3 z; v* _# @- @( T
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ k4 H% D, T( B6 W& j* |0 elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ M! d* K. T5 ^
0 z, N- X/ B+ }7 l( v8 ?/ ?) M! J6 U' @' T) t0 S5 {* ]; o E
get-global-proportion
* s+ m# v% U& U. Zlet trust-value
$ b* X- _8 q/ b6 p$ Rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)* |) M' g/ q4 L. {) T# j
if(trust-value > trade-trust-value)2 b5 o) c7 }" l4 N. N: T$ G
[set trust-ok true] w: {# Q/ U( T5 j7 B: f9 ^. }
end# i. X$ s$ O: V4 V; t
) X. i1 I+ v8 u6 ^" Fto get-global-proportion
9 T( T' s- R# ?- W5 rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) Q, |( V5 J' G8 D* l9 W f[set global-proportion 0]
/ Y/ V: l& u, m8 Y[let i 0: d. P9 ]& B2 G9 B& t
let sum-money 0/ T- O- m) Z: l4 D5 Z2 P% _1 Z
while[ i < people]4 a+ b0 j) @, {3 ?- `4 I
[, r! ?* I' V6 P4 s$ D
if( length (item i
9 M- Y5 H* R! i# w9 `7 `! K[trade-record-all] of customer) > 3 )
0 t- d$ e$ E! a7 L; O6 f[% t2 r: T) c3 Y8 U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( o+ P, H4 Y( u! z3 p+ O]
]% V0 @( X$ X' S& |6 n* z]% c; K1 _/ [" X0 S& C' `
let j 04 P9 |2 T4 \4 a' q/ J ]6 G" G/ q
let note 06 w2 t2 d9 c, e$ W( V, o5 A/ ]
while[ j < people]
: n$ r4 C1 d2 i' J5 M8 r0 Z% p[4 z4 `3 f: s, u* _
if( length (item i
3 ~! q8 U7 Y x3 f. Y[trade-record-all] of customer) > 3 ): w* C$ O. t" b! l$ t7 m
[, D, `; f8 C# U1 F$ {0 M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 Y5 L: `4 H: o[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# j4 ^% n0 |+ Q2 E
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& @+ O6 M' A+ g, A- E! Q! U
]
8 R! k7 J( l/ v5 N" `( `; l& o: A]
5 Z$ ^, @0 j; ]6 d+ g3 kset global-proportion note
8 X3 u; F9 F3 S3 L: B5 r9 u]
, H3 p: _( S( A5 X# _end$ o" v0 y; f$ }: L) s' m0 D0 E
' P/ [* _! x, Y; U
to do-trade
! r6 S' s. T1 l; y7 F# Q;;这个过程实际上是给双方作出评价的过程5 U7 ^% _2 P8 J5 N3 H! x4 {* P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ R% I& ?/ ~ W F" ^: W( Q0 n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 u8 X# ]2 ?9 Z/ m. h3 l
set trade-record-current lput(timer) trade-record-current
L6 V- p; D4 O' U$ O! |;;评价时间
& P7 W, a# N! i% `* Iask myself [
" h# _; Z; L4 @( v- N# l' ~& Fupdate-local-reputation. I% i0 J9 {2 C4 e
set trade-record-current lput([local-reputation] of myself) trade-record-current' e: a9 |! V, g$ F8 a- r
]+ P/ H/ ]2 k C0 O
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* U2 `1 U! `& r1 h
;;将此次交易的记录加入到trade-record-one中
) @5 q" s. Y& c1 a# r0 @set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) f- p; P7 U! L q K
let note (item 2 trade-record-current )1 l1 x/ x# }$ [9 X. J& R) f
set trade-record-current
l( t1 w/ e; U% }(replace-item 2 trade-record-current (item 3 trade-record-current)) z. a6 K% |: M' G: v3 Y
set trade-record-current: d$ }1 b8 B! M# l* t- a4 }" m+ A
(replace-item 3 trade-record-current note)
( O' n; w9 c5 T( w1 x
, ?! ^4 C x& @& w* V7 ?! W9 n% A: ?" r
ask customer [7 \# U# R0 @$ i% b3 l
update-local-reputation; p) M- j# _! l A6 M% I
set trade-record-current
# B5 ?8 T+ d2 j0 _4 A(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ F- M2 Y- ]! p! E! F]9 r1 I! D% r; E+ Z9 i3 [" I
1 C0 C, q6 R, E5 |" O
& }3 ^9 `- y% i W) `( Kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ J" N: r' d& x* A
# {( j0 M5 r4 v) \/ T
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* } v* k1 G- u( c" i;;将此次交易的记录加入到customer的trade-record-all中
y) z9 A, L6 T- Cend
; |, J9 t; ~8 f6 L7 V5 Y' }9 m1 N$ n/ ?6 a! p3 t3 r% L P, l6 P
to update-local-reputation
! m! R$ c; M% w g9 vset [trade-record-one-len] of myself length [trade-record-one] of myself6 e- S. t0 D& T. J. u% R
: d* }0 o, t% K, n8 n
5 B) x9 g. H! ~' Z" D;;if [trade-record-one-len] of myself > 3 6 I: P/ X0 A0 z2 x4 q* d1 c
update-neighbor-total V5 w- B( ^0 j- R0 Z4 l3 Q
;;更新邻居节点的数目,在此进行6 }1 k, t+ z( l2 H
let i 3- N, y8 X* J' z& u7 V+ v, L8 [! _$ J
let sum-time 0
" t3 q1 Y8 k- Ewhile[i < [trade-record-one-len] of myself]% O( C+ S& t2 ?) N: v/ |
[
' S# n; P6 C# o: [% X# `set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). E7 I! u# W; a7 w9 {
set i8 C9 w2 N' \, w+ l0 z1 ?, s$ y- Z: t
( i + 1)! R" S3 H- b1 P
]8 e ?# v4 v2 e; R) \* b
let j 3
3 Y( A6 ^2 h0 n9 ]. s4 _let sum-money 0- O- h6 R8 [3 v1 \/ g1 @
while[j < [trade-record-one-len] of myself]
! w3 H* F/ d4 C. f[( v; z k, N2 d" |/ k1 T
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)
! x6 b7 q% r5 [- U4 P2 J* Sset j
& l1 f: R1 f4 i- R! t1 [2 _1 P( j + 1)
: O$ l1 `6 S: K]
7 }/ u) U; D1 z7 { d7 Llet k 3
' Z7 y/ Z% E5 ]/ glet power 0
/ Q3 l/ Q5 k0 U' S, t1 k# W% _let local 0 z3 C ~: ~( j& I" y
while [k <[trade-record-one-len] of myself]
- J7 B# M, G/ x A/ ]( X[1 X( n% t4 L1 z1 I
set 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) 0 V1 T [/ _; k) b8 \9 P4 p1 R1 P
set k (k + 1)
# c, F% x4 q: ?]2 W- D9 D l5 z- H: t% X5 F7 ?
set [local-reputation] of myself (local)' h3 _2 u: o' W/ p! f: H3 b' N
end
7 M9 E+ j# t% d0 E* A' Y
- ~: I V) w4 c3 ^3 `; _. v5 a/ ? bto update-neighbor-total
' q2 z" G% ^8 s# x. r, Z
# X }8 X, M( s3 t7 {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# f# g2 H. l; \3 L `* ?/ i
1 N- ]1 ]; D3 y( p, |- ?: C
$ o1 J* A( N+ Dend
; G; l9 O* z! ]8 H% N
) G" n3 q6 e" r" mto update-credibility-ijl " j8 e9 }( T; G! ~9 \& ^# R
6 V% [9 J7 f9 C. \( E3 T7 w- 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。
; m& f2 b2 g2 ulet l 0
6 m+ U, p. W0 w# pwhile[ l < people ], r, D' T3 Y, q9 g, X' _( E
;;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: L, {7 `, g+ W# @& [
[
9 v, [$ j$ P3 n* D& i8 |% e. p9 ]let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 i% m# g; \/ I) lif (trade-record-one-j-l-len > 3)) \. T% p7 f# R4 a8 l$ h
[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
* e9 l1 x6 M6 ilet i 3
+ [0 h) s4 P9 zlet sum-time 03 Q/ f5 s. ?2 j4 p; k
while[i < trade-record-one-len]
/ k! @- g7 n& W2 j) B[
: g4 J1 a1 r# q$ \3 D6 nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 E& {; n: W: \- I& Hset i% U; s: I2 ]+ m$ w5 p4 O
( i + 1)
, R3 D2 z6 Z: B1 k! m+ r% d]
! J) i& L, J% {let credibility-i-j-l 0
0 Y" O- g' }* Y$ l* l;;i评价(j对jl的评价)$ H# F; z w" J/ m6 a9 H0 `
let j 3
* s3 w }: @5 H9 Slet k 4. o9 {' \3 S) `' H* W8 K& c
while[j < trade-record-one-len]: U# {* j9 g; @/ @: r
[6 n& B: C0 t1 D4 M& X0 V* ~
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, K5 b) u9 I% m: v2 B& K
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)
' F; l# l# t) \5 w- Qset j! i- {! p7 u. A, _& y/ }
( j + 1); W* G1 I$ ?) ~# b1 s; _4 Y3 B- E
]
% N5 O. O' e9 M; p' Q. i; J) Zset [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 ))
; `# C2 B$ R, p' G( F% l
6 N z+ ^6 m' w4 H \" w* i4 L! G+ A6 B1 ?& M2 p
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% d3 O1 [+ L' b% \/ K
;;及时更新i对l的评价质量的评价8 N: U: m- ?1 p/ }9 ]4 y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 _2 k- p% j1 y# j: P) jset l (l + 1), E i4 K" Z: L) ~
]
, \3 ~ Y0 N8 oend$ v; B) A( M0 H) z i8 v
N3 ?6 |8 P- `
to update-credibility-list) \: `1 ?# A5 W4 K
let i 0
$ a; l0 h q* d$ x* Pwhile[i < people]" b E/ Y: Q: O9 T$ C
[- ]* ]2 C. H# X( r9 _
let j 0/ P: V3 j3 T, f
let note 0
( J {. Z1 U# r6 j7 v& xlet k 0
! h0 H: u( y' n;;计作出过评价的邻居节点的数目* j& [, a# M+ Z: G& P
while[j < people]
, O }! B8 a6 D; l* ?, V. i[: C* @. B( _9 D# Q
if (item j( [credibility] of turtle (i + 1)) != -1)
* B) _2 S! I& ~" f& X;;判断是否给本turtle的评价质量做出过评价的节点
# S( y% p/ [4 u[set note (note + item j ([credibility]of turtle (i + 1)))
. S; p v: m6 j& v5 x7 J4 e;;*(exp (-(people - 2)))/(people - 2))]/ r/ U: J3 o$ U2 Y: v) p4 e
set k (k + 1)
7 _$ j: J1 V: A- D/ L]
7 f6 M4 G2 F5 D0 ]: Dset j (j + 1)
) |3 h4 J9 p4 r9 ?* E]
/ s3 p4 V1 M: t6 qset note (note *(exp (- (1 / k)))/ k)
3 N: o8 O$ i' j! T' F0 _; [) Vset credibility-list (replace-item i credibility-list note)
! h1 o, g. m, H# bset i (i + 1)
6 T6 v& ]. [. B' W' Y]
, _6 n7 _ Y( L# S) nend' U' g7 K1 W u" H
5 r0 T+ z4 h' ?: W9 Z
to update-global-reputation-list
' A, L$ Y' V/ d( M6 Q! mlet j 0
* {5 X \4 p! w; Y+ Qwhile[j < people]+ p' v ]' R! n
[
& w7 U: \ ?, Glet new 0% h0 c. c8 l5 f$ |8 q7 F: Q
;;暂存新的一个全局声誉
: I0 {& F! b* R2 o' @. L9 Llet i 0
& z$ @8 z2 W+ }1 Olet sum-money 0
9 s3 ?5 y3 ^- b( Flet credibility-money 0$ i# C( K, x' ]. A7 m! ]
while [i < people]
0 z; y/ n2 y7 u& ^[
7 ~9 n: {- s$ y# }6 Hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 T7 x9 Z( X4 ?2 w& l
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 a" Q8 c/ p! _, M& x
set i (i + 1), F2 y+ F! e v2 S3 v, a4 o
]) W2 j, I& }# F& m# e1 _
let k 0
: k. T) F; N) \; V& ?& jlet new1 0 j1 r& I; s2 f' i2 N
while [k < people]
2 y5 C. N; O' t$ d, N1 |1 q[* Y' x+ `( X- M0 Z/ @- T7 k
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)
]' g0 a9 s/ ?( O2 ~6 j6 T# r: jset k (k + 1)
! e8 j5 u! V, Q$ F2 h& e# ^5 \) x5 }4 }]! j' A1 \8 |( B2 z( m1 Y. w
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; W* _: N Z: v+ v( I7 u% Aset global-reputation-list (replace-item j global-reputation-list new)
% l' Z0 ?6 f2 K, _! @, p3 w1 X, G+ eset j (j + 1)
1 h- `9 V4 S) n7 C]
- p& j' L7 M1 w, v5 K4 Lend! s2 e8 J9 T) y' G0 {) C$ c* N
" I) }3 N0 N0 T. c
. Q- E* b, S6 N) X5 T; h
2 W/ J7 o7 s1 ~7 S: Bto get-color1 b! V2 i9 e: s3 H8 y; p3 h7 K5 r( T
& b3 ]7 j& |0 ^6 T- h! vset color blue6 Z, g. p( m2 f$ r# I
end
, [2 `& n; V4 I# b8 ` V1 Z
: m) v" ~) F" y, n) y5 L' cto poll-class
0 T" z# n/ N% z' Q Tend
+ s1 z0 e" O& q& R( b; {% l, q6 @+ ^) j
to setup-plot1+ u. z6 h! O" p0 S
; A5 c. F/ A" s% I8 E; o
set-current-plot "Trends-of-Local-reputation"4 E8 j0 Q5 F" d/ W4 O' R. k( a
9 P! {9 y6 ^1 y$ b% { B
set-plot-x-range 0 xmax4 m$ o& n6 k# _; N( m4 [! ?
' H% d1 s, E8 T+ j' |$ m% C
set-plot-y-range 0.0 ymax. h M9 ~0 D1 v8 y5 P
end$ t6 {0 @) V4 }/ S. i) z; D
$ P/ T; V5 d/ D4 c+ [8 [to setup-plot2
% i- u& _' {3 s0 Y! i! B
! S n% ^7 ~9 v1 Gset-current-plot "Trends-of-global-reputation"3 U- @& C; \4 u: T1 E/ S! e6 Q6 V/ w
4 D4 E: H" `+ b9 U, ~9 E+ ?: j
set-plot-x-range 0 xmax
4 M& v$ o( \ R- z F0 w) Q
6 J0 X; u% c6 c4 w# q3 Aset-plot-y-range 0.0 ymax
9 k" K/ b) ~; k0 Qend
& v0 E X& A- v0 o
- a( x/ M; r0 a7 D. S# N: L1 Q, @to setup-plot36 q' @% F K( N. c
0 F" u: g8 A& I8 h' Z( ~
set-current-plot "Trends-of-credibility"
+ K" ~& B# Q3 \: D7 S8 K
5 i! u( H# D. m" ~) U8 g: Zset-plot-x-range 0 xmax: k& w1 R! x. a" a0 X. D8 ^
7 w8 I4 v, T4 z0 Cset-plot-y-range 0.0 ymax
S* o8 [/ o9 c1 e4 e0 lend
6 \# ` L1 P7 ^: G) `( t+ v! z
$ \* e' E v+ bto do-plots
) F+ |+ \( ~- \; z- Uset-current-plot "Trends-of-Local-reputation"4 X! q* i0 k( e5 I; y8 ~1 B
set-current-plot-pen "Honest service"
3 Y7 |+ k( H( r# M! ]8 O2 M3 Qend
/ ^( W2 c/ d7 ~1 A
0 [, a/ L& U9 q3 z; ?7 z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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