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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
- A1 u/ R# U& S9 V2 b4 |globals[' E7 z( Y* K+ Z5 I1 M: W! K7 s, ?# R: P
xmax' g( Y: n9 G: Z! [: T
ymax
: b# n5 P7 C9 z1 rglobal-reputation-list) Q& b5 T. r/ `2 N4 B/ k7 K
! t8 x" ^4 e9 T' B
;;每一个turtle的全局声誉都存在此LIST中
9 S0 ?, s6 |, W. b% ?9 Acredibility-list
$ J! [$ j5 l1 z V+ F;;每一个turtle的评价可信度! S4 k' C _" _
honest-service
* x/ N& V3 D( u9 B* h1 Qunhonest-service
( F0 a6 }! h" g, ~6 L& Voscillation$ f* o$ C! M! n4 n q6 Y: {1 g
rand-dynamic( _1 O6 l! B9 L
]' o" G& j+ d5 e* G9 D
! I9 W3 Z. l/ \turtles-own[
. _: \! z8 H2 j' ]- L @trade-record-all
/ _+ `& r' h3 i$ S# ?& J* h L;;a list of lists,由trade-record-one组成) n4 i @) J) C+ E% z* R2 ]/ A
trade-record-one
) x' }) Z* d& m6 P( V# z$ i: `4 J5 o;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]7 c" \! w1 p! h* D6 D) G
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]# F6 t& R" b- Q( T+ F% l5 T
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* H+ C4 c* _$ k3 F
neighbor-total
- s X& O e) _# \. N+ s;;记录该turtle的邻居节点的数目
3 d1 t$ u) e) h3 o: g/ d* s5 d, ttrade-time
( T `- c; w5 {: I( b;;当前发生交易的turtle的交易时间
- H, v3 h+ v5 ?' K3 Bappraise-give
2 K7 i W; ]9 [3 C3 K; A( c;;当前发生交易时给出的评价
+ G/ ~ V. K/ i5 H' F! ]+ S3 Rappraise-receive
% _: s2 T0 f1 d& \1 o2 r& f. o5 T) t;;当前发生交易时收到的评价
$ a7 {. }1 L t8 M) Qappraise-time
8 \. m; K; @) h4 v- _# }3 n) @;;当前发生交易时的评价时间) v+ r2 G C+ F- j+ G: _9 T$ L( S. M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" a9 a0 B' u% g. R: \' D
trade-times-total
. [( S4 v; g2 ~0 @;;与当前turtle的交易总次数' I, {, h: [! t+ X5 \, V
trade-money-total& r/ ]& S: {! ]) x. C
;;与当前turtle的交易总金额
1 [9 D& Y! p; R" R' X3 d! dlocal-reputation7 L% X3 c% A( U2 W8 S" K
global-reputation
: j: F. o5 V1 J" h+ B+ Vcredibility) F ~1 M0 a1 l+ M5 M
;;评价可信度,每次交易后都需要更新
9 K5 P# S6 B1 J$ O4 S, kcredibility-all
& @' ~1 I; F( _( k9 _;;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" L# m5 E0 i% r8 Z% c* K
) E+ d8 K) f( w
;;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0.59 c8 `% w1 M/ Q% w! T" \9 ]- x
credibility-one
# j* X3 I7 ^8 g. b% ^' d;;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 @1 `! m& Q' S5 t2 aglobal-proportion
: c# N& ~) r4 |: v. p9 Jcustomer
6 g7 c7 O6 o+ a8 v+ Lcustomer-no
% A# f" k1 k$ v3 ntrust-ok
4 Q }# s" e6 @( c2 {9 b Gtrade-record-one-len;;trade-record-one的长度5 y z6 U$ x% G" l: M
], v1 r6 c: }. a# V5 f' X; O
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;;setup procedure
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" u9 t$ d/ \3 o! ~. mto setup. K+ v- g/ [8 O5 Q
9 J0 V3 n( U! {3 U! }ca
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initialize-settings
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3 X0 n, W, Q( @4 Lcrt people [setup-turtles], B4 Q! }7 _+ p/ C4 R
) j6 C7 p; g# w) w3 Creset-timer
! [3 \8 v, v) `; f6 G! d" D: z4 i
: d/ O" J$ J ?% a$ X) ]% }poll-class
6 {: h0 `, i g, p
1 `3 _5 H( S3 l( Asetup-plots) b3 f, r, l! [% l: k4 m; P
! ?1 w7 M$ x+ ]8 Ado-plots
2 E/ c' ~4 A7 ^end3 N+ d- O) c% | f" @
1 }, }9 n: o# |, S1 Tto initialize-settings
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set global-reputation-list []* ?3 y7 i$ N( I# B1 \8 Y+ |
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set credibility-list n-values people [0.5]) O) ?9 P/ e( X7 `/ e
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set honest-service 0
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set unhonest-service 02 O2 U! @8 G _
: B3 O: Z+ ]" y: ^set oscillation 0
+ m' N' v" e) P3 e0 `$ Q( g3 A/ g1 } v" ?2 q x* P! g
set rand-dynamic 02 W7 P* M2 K1 n4 z1 |
end$ @2 R t3 }% R/ i
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to setup-turtles
0 J/ ]* f. {0 u- Uset shape "person"
8 l+ N. p6 U, S0 a E/ b+ i( fsetxy random-xcor random-ycor% f9 f1 T9 ~! F7 L! U" H
set trade-record-one []4 W+ m) Y4 w& A Z Z4 Z" V o$ {
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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' [' K0 I. x. z# Q J; ^$ ?- Wset trade-record-current []
& b0 a# }2 O7 h% T1 n2 }set credibility-receive []
* F/ ?( z$ ~% f: `6 Uset local-reputation 0.5+ q& ]- O# K3 a" q
set neighbor-total 0* g$ L9 P, R' n& G0 `7 O
set trade-times-total 0
' V {: k% v" x8 \ K# Z# F& Mset trade-money-total 0
6 M1 w1 `6 c* W, H2 ]! xset customer nobody5 E) @: i! p. o+ d' {
set credibility-all n-values people [creat-credibility]! I) O. [' m, L' _% t
set credibility n-values people [-1]7 J. U! M. P( ]8 P" d
get-color7 M3 M T9 k, Z C1 m" A
, ?# D n# H9 `0 L7 y+ H Xend
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) d5 g9 r, n, w, N7 U" C& ito-report creat-credibility
8 F% l% c0 y6 x/ ]4 w$ k9 wreport n-values people [0.5]
. u* v0 O# U6 r5 aend1 @8 O2 b5 C0 g6 o! `5 g
' x/ @& N/ H+ W8 ?# s" r
to setup-plots
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% S! |5 d, s; M) O' gset xmax 30
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4 b J2 w1 ?! z8 g$ j4 e' p3 oset ymax 1.05 I$ ~- l1 H9 }/ m
8 f/ s8 v# n( N9 [) \% t# w1 v3 Sclear-all-plots
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setup-plot1
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( Z9 J) _: j! ]setup-plot2/ ^1 ?8 \' {8 E f# D1 w
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setup-plot3, Z: v& \! n- m% c
end9 ~" Q C9 [7 \
4 w* `: h$ P; n( n3 n& [;;run time procedures
1 a' }" o* I0 ]% s/ R
/ X( W Q, }* Z2 ^- @6 r oto go
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ask turtles [do-business]
( B, S$ `. S" C2 ^* q! j1 Send
, m- d. \" C# |' V7 V) I9 H* m( w" `' n& r7 M k
to do-business - W, o" I1 D3 I# F" @3 A
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4 E, A# L/ w; p! z! a, |rt random 360" e+ [; g4 r1 e( h! z
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fd 1- h4 E! X3 z" n' j0 H
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ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here' r& Z2 D M J( s4 \8 C% R
, n6 J% }% \. V3 N" `7 };; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
/ z8 n2 S" W; G1 e9 r j' T% e2 b[trade-record-all]of self: O) @# _" v n$ Y1 `
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# ^, @& X" y" \2 D' Z
- A$ _ u. x C' Y. Nset [trade-record-one] of customer item (([who] of self) - 1)( ?$ v6 t2 D* [
[trade-record-all]of customer
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7 X& Z% Y9 a- i# ^* n- x# v- kset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
) ^4 e% E; b9 Z0 ^ s
% O Y. b$ F! S9 V( i1 @ask self [do-trust]: F! @% `9 U1 U4 e8 D3 C: [% z0 l
;;先求i对j的信任度" n1 }: {# \! f K; }7 m- R4 S
" K# R% R0 g' d0 x- ?% ^if ([trust-ok] of self)2 R, p# y- g1 b# _
;;根据i对j的信任度来决定是否与j进行交易[
% J+ }6 p# e! g8 Dask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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$ W% i2 K7 k" @" o7 _8 R" R ^9 y[3 x' d. ]' r+ l. T2 Q0 V
; y+ W" T, ?$ N6 l+ I
do-trade
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update-credibility-ijl' g) V6 i4 A% c/ z0 x4 {
0 _" E) X5 J. H1 L5 kupdate-credibility-list
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, L7 A0 z' e" W2 u- O$ f6 N8 [3 i
6 L1 `! \. q% o# hupdate-global-reputation-list# `. E o! Z5 r: h. k3 u1 N( }, \8 O
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poll-class1 b) ~! t0 p# _0 t' ~! h9 n% A
# C: `# |+ X* x3 B
get-color9 f1 h& K: z" U$ R/ k- b
# G* } J6 z! d6 R]]6 H$ @; p7 I: p+ k4 A) b* ^# c
* ^/ z+ {$ J! P- C) V;;如果所得的信任度满足条件,则进行交易
" e' ~% @: u; J. l5 y3 R. W7 `' y8 q3 S
[
0 r- e6 u( f7 Y6 u( U/ y. K
; u% [8 i# f/ t' H' y8 Y7 Ert random 360
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fd 1
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]
$ N+ @. G- ^. @% Y% o1 j# ~" V& T" O) F+ b0 f
end+ X6 U4 H9 e5 ~# k" p
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to do-trust 5 i" V: y1 b; L" L
set trust-ok False
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0 o% {2 l+ d. }# ]let max-trade-times 0( m7 f; F: G( r1 w0 G/ K( ^* h
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], T5 K7 ?3 {3 N+ z
let max-trade-money 0
Q, C$ X7 ~1 [* Yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] R0 e" V/ c, ~# {% Z2 g$ N
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 M1 }/ U- R3 ]3 t6 w2 B
9 l/ Z3 |, H+ k4 N! T
0 r7 h6 i8 x! m# s% Eget-global-proportion
E4 D$ u1 C8 k$ rlet trust-value1 ^. q6 m( |( B# s
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)3 o9 \* j1 G+ ^( C% G1 h/ b
if(trust-value > trade-trust-value); C4 B; z& V' j
[set trust-ok true]
G+ g3 n" I; X& r0 @! q D3 pend
9 p2 |2 W( z. {7 q( k+ G) F4 E3 c7 d, D
to get-global-proportion
8 \* L2 |- z% \, Wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): }$ r2 E5 a2 o' b3 G7 h6 R- a( M6 ~
[set global-proportion 0]
3 f! r2 B' Z5 e4 E) A[let i 0& A n5 i' w R+ \* n" }5 R. A
let sum-money 0* V& ?/ s! R: [: _# M
while[ i < people]2 C r! P J' t3 w1 S' D
[
8 t+ V0 K/ U {+ e7 t6 Fif( length (item i# t! }% D7 G8 B8 a8 \# L9 s, X
[trade-record-all] of customer) > 3 )6 f% j) D/ |" i z3 F
[) }3 @% [4 t0 S0 u) Y$ U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# `; u% ~- O- Z( R
]
$ Z5 Z: G9 |" }]
" ]3 z* D% K- {0 Wlet j 0; D( o0 m' t" t$ T
let note 06 S, O, r& J1 C. e9 b6 v# C0 k/ d( n
while[ j < people]" k" u4 O# O% b& x3 x- d
[! l1 a" l. ^3 k$ \# v W: B
if( length (item i
) Y" Z* e8 _8 G X2 n, q8 f; K[trade-record-all] of customer) > 3 )
$ E9 V/ J% E# Q) q0 e3 M- h[& S0 |4 s9 f& ?
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 R" r4 V$ I2 b! @* E o( J" N8 e5 y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 w/ V7 d, {: I/ G! V5 b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 z- A& e6 G) K6 r
]1 b- _# g5 b% H' {* b
]
& y* R3 R m$ `3 z) I3 \set global-proportion note
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* P @2 J4 y4 a: x, eend. W( H) u; a J0 o2 ~
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to do-trade2 L& Z& X+ G% d8 e- [
;;这个过程实际上是给双方作出评价的过程8 m8 g1 a$ w, \& V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 g3 J6 i8 f3 N9 s0 T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% e# B2 _7 t1 C0 ^, _set trade-record-current lput(timer) trade-record-current) y/ f) [+ z8 v# y5 |' d/ p& n5 A
;;评价时间
5 h. j( C* ~2 k% x' ]ask myself [
4 E3 ?$ [5 F# f" h% [3 W0 Dupdate-local-reputation7 D% U; a8 V: A) Z, j* G" ?
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ X4 ?+ u9 D9 J/ W2 d0 Q, O' }
;;将此次交易的记录加入到trade-record-one中
' a; W* f( F* `4 L2 D+ b6 Sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)# l9 P2 B8 z" d; x
let note (item 2 trade-record-current )
) C, p9 E5 V& M8 B. N/ kset trade-record-current
! b& b' @1 h8 Y8 R+ j) l(replace-item 2 trade-record-current (item 3 trade-record-current))5 k3 x% ?& ]( m% v
set trade-record-current
, k3 b7 c6 b9 w3 d(replace-item 3 trade-record-current note)5 p2 x7 v, Y5 F" ~: a
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ask customer [
/ R; N/ O: j' f$ }( f! v6 rupdate-local-reputation
# H( j5 W: A& x# oset trade-record-current- V0 g! | _2 o: d4 n( T" M3 v" E
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ N, Y- H1 ~! o3 K0 o
8 H7 k- k0 A4 \- q6 Oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 B2 a5 d+ U$ C* {' L; l;;将此次交易的记录加入到customer的trade-record-all中2 l0 k1 S( G: U
end5 i3 t) Z2 }) x6 P
9 ?0 O' c. a; \* t( @4 }$ j$ O. c
to update-local-reputation
9 _6 [/ m0 H- L: z7 Q- Kset [trade-record-one-len] of myself length [trade-record-one] of myself
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5 ~" \6 a& C3 Y7 C; C/ A
;;if [trade-record-one-len] of myself > 3 5 [2 W: a: z3 Z E% ?
update-neighbor-total) t- h7 ^! r9 {
;;更新邻居节点的数目,在此进行( |8 M- j3 ~: X. `
let i 39 S" [+ {) K; i* Z5 G
let sum-time 0' g- N2 I: F( i: |7 k$ w% h
while[i < [trade-record-one-len] of myself]6 P- l# S+ P* q8 T- L
[% C* P) U# y$ _/ G2 |( t8 H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 P Q& @0 O' @- U2 Wset i ^% u$ Z/ d- o- _1 X) U( Z* j
( i + 1)& t4 k$ G" @8 s! ?) ^
] q$ k9 I m1 H" D+ i
let j 3+ K0 j7 _- l3 e5 ?/ K7 Z
let sum-money 0
{/ O4 ?7 b1 H. O- Gwhile[j < [trade-record-one-len] of myself]6 N: k* [3 ^# r# X! ?0 s
[
4 x5 C; J7 `" k% l( p* l8 Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time): W/ _+ S$ R9 [
set j8 H( Y* m' _. y/ n8 @: @/ G
( j + 1)9 m% l: {" v" c4 A# p9 I5 q6 i: ?' M
]! r9 z* `5 }1 I- }5 K O- [9 Z
let k 34 l0 q G( v% d8 @, W0 K- {
let power 0" T K" I/ E) L
let local 03 Y' |# n7 m+ _# x; w
while [k <[trade-record-one-len] of myself]# c0 X1 x" ~/ l3 n! c
[
# d% E- Q6 C/ i3 pset 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)
. M l, Y5 f0 r4 U7 xset k (k + 1)
$ G% E# K; _" c' m; M1 m# b]0 k" i- a, e) q) {9 h! N% Y' i
set [local-reputation] of myself (local)9 v/ G9 N4 y2 i' J$ ^6 p
end
$ `6 f! k& A% q7 c2 s$ T: m$ q/ { ~/ o( y+ K. I) g' o7 x
to update-neighbor-total
4 D; z7 W/ F8 \7 d
; u+ E* K$ P+ h0 z5 g0 ~5 Zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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- ~" a6 [+ {7 m
: t8 w6 u3 R% J, Gend
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$ [( h8 G$ v( r1 ?- F) k8 _to update-credibility-ijl
9 z& _$ N. Z. j1 L; ?% N8 Q. U- n- B# ?, i( }* b! }2 I; U
;;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。
) g& U% `$ V; u5 F5 r1 p; p3 |let l 0! c& C8 Z/ C/ j9 Q$ Z6 e/ x# j
while[ l < people ]
! \# ^) z4 m9 e8 `) M" 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
1 f6 b. K, L, g* c! z. f+ ?5 m8 n[
. g- M8 ?- a2 z* S; B2 J- Blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 K6 l# T K4 T1 ^
if (trade-record-one-j-l-len > 3)3 [, N4 U8 G. B* ~1 ]" U
[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; x( g) t5 H( O; f s
let i 3) U! t$ m4 Z& ~ h! x
let sum-time 0
! }+ h8 ]( P0 j2 a# Xwhile[i < trade-record-one-len]
+ F; t, Y# `. T+ j6 [[
1 {8 v8 \# P7 bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* y' L: Z/ _- f
set i
3 p4 j! A8 A% h( v2 x. }' a( i + 1)
1 k9 |0 {# ]: A4 P5 t], r$ k! T0 p) T* V7 a
let credibility-i-j-l 0- T5 p9 p( Q; {* S: i( O
;;i评价(j对jl的评价)
) u2 g7 y o4 ?: Xlet j 3
- F9 r7 X- A' W7 E* Z o( Hlet k 4' c+ p/ \: y$ s) l3 r
while[j < trade-record-one-len]
' E4 F( y; W) [4 ][
/ y' u) p* q$ U7 ywhile [((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
& x0 Z1 y4 n: o; P% c2 u$ z fset 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)
; D3 R+ K* D5 s4 A5 ? O" r1 Fset j2 T# s% T D& {8 j7 r
( j + 1)
# M" L1 K* P* W& I/ Y' G0 S]
$ E$ Q" t6 ?+ y6 W9 Qset [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 )) w1 g1 Z3 I, [9 d
8 n/ a6 E; O4 H# G. @1 H2 M% h
) p; U. r# k% Y" Ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 }" w. \2 ?- u0 a9 E8 o
;;及时更新i对l的评价质量的评价
! Z. @8 \8 {* G/ Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ L K% r; R. T$ Q P& _set l (l + 1)8 c- B2 h6 R$ O% c
]- L! P- O# y; F4 U4 [
end
" M2 V7 A) o6 j) O4 d2 t% J- ]# X% C$ F" k- j" q
to update-credibility-list
+ [( _1 {, p7 U# r9 q6 H7 Mlet i 04 }/ E, G: R: U! V% C
while[i < people]$ x7 e# X' Q1 K" k" ?' Y" _0 u
[* @ Y2 R5 O2 {+ x$ u+ c( H/ z3 \
let j 05 ]& f' S! y( ? x
let note 09 [8 | `8 n1 g+ L
let k 01 b+ j4 p* I4 t; W4 h2 o) Y
;;计作出过评价的邻居节点的数目
. z, C6 V7 m5 ^5 f' B: w5 G! Iwhile[j < people]: x3 a% r* j: Q
[1 t7 j$ m+ p/ f6 w2 A3 p2 K) y
if (item j( [credibility] of turtle (i + 1)) != -1)
) b/ Q3 H/ E0 N' E;;判断是否给本turtle的评价质量做出过评价的节点( g0 m, U# s; i& ~% _' C3 q
[set note (note + item j ([credibility]of turtle (i + 1)))0 D* f4 G9 e4 }/ b* d) c
;;*(exp (-(people - 2)))/(people - 2))]+ C% W% b7 L* A& D
set k (k + 1)0 g3 k; v2 g& _, @' Z; a6 Q6 e
]) h3 @: |: m% p+ Y
set j (j + 1)
" \2 j% d# Z% L8 O+ h]
0 v4 a5 g6 Y7 e! Q- v. eset note (note *(exp (- (1 / k)))/ k)9 D' n( a& Z: J' O( ~" i& s/ ?
set credibility-list (replace-item i credibility-list note)
0 J @$ ^. A( `. n9 J6 }6 ^set i (i + 1) f( W+ J; @( i1 Z' f% Q. {( {" I! i
]1 ?) G6 R( A* s* c7 o4 S
end' T. I2 f, X9 q5 r
3 J$ F) {# E" z3 [8 a" ^to update-global-reputation-list9 ]" E( E( R; D" t
let j 0
6 n. b' E+ [5 m2 D K( _1 o: ?while[j < people]" j) ]) H9 l) C- l3 P R
[
! N+ H/ p9 [7 [$ |let new 0 Z# p, l& \ f7 E# O6 P/ X i) X
;;暂存新的一个全局声誉/ @* v# n$ u3 x% o) C
let i 0
" X/ Y/ f& L. n' x3 ilet sum-money 07 I- _, ~" S% b* y/ u1 P6 }
let credibility-money 0
' a8 b7 R; ]3 D) ^7 f6 iwhile [i < people]6 L- v& ?# L, s1 d& x) T O
[0 m1 N1 v! X$ G0 |( l0 J0 Y. q- D
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ K1 ~. ]% D8 n3 ~! G1 N3 i( z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! w2 J5 o, q0 W7 B; H0 d
set i (i + 1)
" T2 ~. c8 @6 b/ K& X" b; f& U. N]3 g0 Y! I' s8 u% ?4 c9 [) W! K
let k 0" E( C L8 T U8 ], I
let new1 03 x2 p# q1 a3 h
while [k < people]" D# ]* Q! K6 G1 ]8 V7 g6 V! [/ h
[# y* W' x+ [- H4 F3 E
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)" b, ]9 m1 Y. ~( T6 n
set k (k + 1)
0 w9 }0 X) t& ]+ K$ ~. K5 t]
O3 E3 m- d$ b. \$ l \/ Kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& c$ ?. [1 K0 H7 C! Aset global-reputation-list (replace-item j global-reputation-list new); e% s" _# A, t
set j (j + 1)6 L2 R0 r+ R" h- E0 s8 v
]6 D: b, l( A% h
end( {- v; c% J G& L
. J; L% _! [0 o* ]: Z+ [% ?' J$ y6 @( {. ~6 a
" W4 l, _6 M" v, I* xto get-color
* l. {( W1 c1 T# j1 d- o# b7 I6 g) {7 E I
set color blue
6 i1 Y" @9 z. m3 p" I0 @end
$ c9 k- h7 f4 v* _$ \2 X3 E$ {; b, @3 ?
to poll-class' p X) L8 [( a' l
end- r, v' u: c- l
% ?* W3 a5 P6 S" y. \to setup-plot1" `" ]4 q; \/ y# Y$ C' z' J
- `* s# D( C7 a9 J$ K1 Z8 g
set-current-plot "Trends-of-Local-reputation"
* @8 p- }6 `, I" c7 d8 L M7 A( X: a6 H
set-plot-x-range 0 xmax5 y3 j1 R G. p6 G: h
2 N' p( {- X9 ^7 _0 S' y" q9 R5 ~4 p
set-plot-y-range 0.0 ymax. u7 G0 u7 p6 x. Z
end
3 g/ c+ }- O7 e1 e& F9 Y
0 @- [: [- F8 ]/ b( cto setup-plot2
0 M9 D( s# x* L% |" Q0 b
0 }! \4 h! w7 U# Z( l* U/ {set-current-plot "Trends-of-global-reputation"" ~, m- V) P. L: s, U
* x7 N1 w3 U) m2 o7 O+ L4 l
set-plot-x-range 0 xmax
7 ?; ~ n. r/ w3 A1 B7 y3 R( U7 l7 n) R
set-plot-y-range 0.0 ymax
1 g+ W A, }1 }3 Z* x$ kend
; _" F' v( f' Q* y, X0 D w, J3 M7 E
5 v1 @* m8 T' B& u' Vto setup-plot3; o& r5 I$ h3 c) j; ~
4 O7 b" ~* P Y% T0 V1 T% U3 d
set-current-plot "Trends-of-credibility"
" n" g( o8 F% K/ s" ]' h( s. ^! x4 m0 ?# \" l0 t4 R; H
set-plot-x-range 0 xmax
# {& V; p& I c! M
, H4 ~/ |% [/ N/ p$ tset-plot-y-range 0.0 ymax
; W# a U% e, Jend
& Z: D0 |/ i7 s3 b
' ^: h4 B2 ~! b% G# Q5 X! [to do-plots/ u% h2 p+ k9 ]- |9 @/ J( N
set-current-plot "Trends-of-Local-reputation"$ P; B: p9 n2 X
set-current-plot-pen "Honest service", ~0 l3 w, }5 ?3 c( t
end
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* y' `" S) I" h9 A0 j+ ][ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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