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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! g) B: R/ v& e, o3 x
globals[; t2 n* _& b! z0 d
xmax G$ g/ e* E7 W+ X
ymax
2 H1 S. a1 ?1 _ R5 ]: _# y% u& o, U. @global-reputation-list
$ y5 V' A, Y! W4 f8 a4 u4 m9 q
: v P: l, V6 S;;每一个turtle的全局声誉都存在此LIST中' b! R) C# R5 O. s& Z
credibility-list
! Q" ^' F% ]$ }( _$ ?, h5 G- H$ i;;每一个turtle的评价可信度- o1 C* ]: X }1 h
honest-service
. K; C$ l9 {' Yunhonest-service
8 y, P6 j$ h& C2 C9 t7 {- a, Woscillation. f6 h; a3 }* `8 I. Z ?
rand-dynamic( `% o, \! B: s: ^! V+ l
], ? o) f0 J. c/ N& @# e$ n
9 f1 {% k, E% d2 Cturtles-own[
# W5 M9 y. q4 V, |trade-record-all
2 S$ F% C( {, r+ V `1 C. U: r" g7 u7 _;;a list of lists,由trade-record-one组成1 P% ^7 z: R3 P6 L6 i9 y0 b
trade-record-one& v6 \# S& R- @( c1 ?5 a& n) g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( |- P% P9 T# l1 }. J3 j% [, q D/ v. ]' j( L( F
;;[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]]
2 \! f4 l4 x/ _* n- H/ Ltrade-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]
* o- F* G7 f5 Q6 ]3 a/ j8 Z! Tcredibility-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" A) R: \1 M/ i( A* P# Q4 N
neighbor-total
E6 R& t' I5 c. c;;记录该turtle的邻居节点的数目
1 k% Q# t( _: d2 W- o U1 btrade-time
( V$ X4 T% f) f, S/ w1 C;;当前发生交易的turtle的交易时间
/ i( }) z+ F4 {: mappraise-give
; {9 r5 c. c/ l- @;;当前发生交易时给出的评价
/ R. Q' K | n: Q& s$ Iappraise-receive7 f8 T# Z. E, }1 C' ?7 v: y/ M
;;当前发生交易时收到的评价1 |+ j; b4 D" b
appraise-time
) Y) T! V( f4 k6 g* t3 q;;当前发生交易时的评价时间! z( P/ F* i% H; X
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" Q* U% w6 ~; K% e/ Ytrade-times-total0 r8 a" {( e# m6 L' {; F, ~5 A
;;与当前turtle的交易总次数: p6 z' Q6 B+ j( Q7 I. q& J7 ~
trade-money-total
T# y; N( q$ ], y;;与当前turtle的交易总金额; {! G1 c. F! J2 ^% f1 P
local-reputation
9 f& a( K$ f- o$ \; R" Jglobal-reputation
& z$ ?% j* l5 Y7 S$ Ecredibility
; O$ J4 V! _- i' U6 d( {* O0 Y2 S4 l;;评价可信度,每次交易后都需要更新
. i/ r: k2 k9 C* J r* zcredibility-all
6 {2 D4 M, [4 r( s7 O1 f' R5 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' t- t( @0 Y4 Z# _" E& Q" a
2 _7 t0 B) _, b' a+ g0 K
;;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0.53 u3 d) l1 n ? q5 p+ b
credibility-one" W$ s0 @3 j1 T1 H" b
;;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
& k4 C' J) O A; W9 Lglobal-proportion" ^5 R' `' x/ }8 d h/ L
customer
5 }& r) K' o Z- Xcustomer-no9 e9 r. `9 M; u1 ]3 m
trust-ok, M" C' d' Y0 h( v
trade-record-one-len;;trade-record-one的长度9 W+ O. x0 T: U$ w
]
: T. A) q! Q& W9 w6 F9 R, g6 ]. N6 K: P' f2 `' }' e0 I( b
;;setup procedure
% s6 B% S6 e" `. c6 }5 e
* n5 d- {5 C; R, M! q& ]to setup7 U$ i7 @; X6 t* C, k3 E$ i
; v9 f. p+ \, y, g, S; Y
ca
4 P# L+ D- s: O4 l
& w- j* v# e3 [5 E8 _/ l! H; W; Vinitialize-settings4 j9 B* g |) X: S# n1 b
/ z( x& ^/ o1 @5 a2 J# dcrt people [setup-turtles]
v3 y {. {2 F$ I5 j
. F7 [" ]" T, a7 S3 Xreset-timer) u: G6 C- a. w% H
: Z3 [4 H# u. T
poll-class
& z9 X* d% X" y! r
% X) S, [' Q) a4 Ksetup-plots% p0 t+ U9 Z6 a! K! n8 M! P
" B( W9 _* A% l1 A, g
do-plots
4 I6 {& e" O H8 r5 v- _4 Wend
0 {5 s& _5 x* x9 \
1 C! F- i& W$ w1 qto initialize-settings
% _! {* e6 X; i; p, I6 h
5 O' y) x4 p: Eset global-reputation-list []
7 W' ?2 a/ w. l0 R7 Y3 e
# x3 m1 |# E( ~set credibility-list n-values people [0.5]
/ e: \: m5 B- e3 B
/ e% Y" P" o1 q- Z9 a9 U# L, \set honest-service 0
* {4 l7 k/ Y4 r6 H/ z k% V4 o( o( u3 ~2 p: D- m
set unhonest-service 0
# A0 L% k5 q' J
% M% y' V7 k7 C5 s( o/ _7 \set oscillation 0. Q- S& g5 q; ^; g, D0 L
. L& p$ D9 Z: l' {. v
set rand-dynamic 0
4 g @4 g( B9 H2 [end
; D1 }4 H$ {0 E! a$ i0 ]* s" M, o, R: F+ N5 O
to setup-turtles ) q% i5 ?9 \) E* N, `& D
set shape "person"8 c& ~% X( @ M; m3 h
setxy random-xcor random-ycor
" V8 |6 @& n4 h. l( j/ s0 Jset trade-record-one []0 ^0 Y. G. ^# Q/ d- l- j4 z
: Y( V4 _. ^5 [
set trade-record-all n-values people [(list (? + 1) 0 0)]
; B+ E9 r5 Y3 c: }
# T. C, N! k) q4 d2 ^" iset trade-record-current []
: W+ r" C; P" {+ y% Kset credibility-receive []
& |4 J9 W4 }/ T. s+ fset local-reputation 0.5+ a! E6 p! F. m5 F8 D
set neighbor-total 0
0 p7 S0 W4 e) s8 U9 K, Fset trade-times-total 0
3 d, v4 }- `" A% p$ B: [( Nset trade-money-total 0
* l$ ~9 o( e1 y" e8 |set customer nobody
4 b |) }: a/ Lset credibility-all n-values people [creat-credibility]
x# D8 }. `. u" Aset credibility n-values people [-1]+ T+ i8 y' O) k+ i/ o* f
get-color& O. A' c* ?- B) a% q
2 |% f ]& t6 K- J" d+ e7 Uend
2 a$ W; V& }% e- `) @4 Q B, I0 G" Y% t2 j
to-report creat-credibility- ]( W4 ?1 q9 |1 j
report n-values people [0.5]- I' v( o9 J9 g3 R* R( p- {
end& a. ~! l1 h. k' ^: T+ p
3 H$ S+ g0 d/ O# K
to setup-plots+ d! a+ P, s$ d4 U" \8 V- ]3 r+ M
% V1 T) r9 [ t$ q" Lset xmax 30
3 h- V$ u6 i6 h& W) Q' a: U; f! x: ]- a
set ymax 1.0" I5 u& H% p3 K2 G
4 d8 n; ]0 u5 y; m- @' @- t) V
clear-all-plots
1 L4 B; P; O, H( {$ {% d* [: E; y0 S
7 W: C6 r) t/ N- G8 msetup-plot1
9 r& g. I. D/ @0 y+ G/ r: K- J0 i0 Y' [ G1 F! A3 A+ f9 c
setup-plot2( p0 r+ _( B0 y. T# L% u; x
# C/ _8 F& ?; G2 B/ E
setup-plot3
: E$ f9 X& R4 _ wend
. n* K( e# O* \% k# B
% J0 q+ S3 W! S;;run time procedures
- ^( L4 _2 x' \; e- }' S! A7 B
) w0 L3 l8 v- z! _: _to go
' Q$ q( w% B. U4 ]$ J; h1 G
4 p/ B0 d" `9 A2 O& a# a0 gask turtles [do-business]# H: X' w) _) M1 ^8 y( _4 B
end. w( ^3 ~5 z1 q5 N: q' z
# j, Z6 I$ ~/ c( `7 \; t( O$ Sto do-business
$ W4 D: N5 E+ K' G" {8 B5 F
( s4 @/ n/ A! c8 c/ g
! c: y& B; D0 T, v: Y5 krt random 360) c, Z% X3 C* R" o) Y# C
; c0 e7 p9 i' f) [. J
fd 1/ W1 M6 r+ r3 r5 z5 r3 q2 B
* @; H6 `% s7 h2 v3 y5 r8 r" Difelse(other turtles-here != nobody)[& f; v1 a3 q' E& G+ |, s
5 ]3 o: }+ v8 I8 Kset customer one-of other turtles-here( m( M8 n. c! o1 `& @6 @3 E
+ a; w( D2 ?( x2 L
;; set [customer] of customer myself: X t" i4 A- M) Z( l- \" E$ P
& e7 V: f+ ~9 d" N; R1 }
set [trade-record-one] of self item (([who] of customer) - 1)4 u/ d3 }8 h2 D1 F) z6 O# H, D
[trade-record-all]of self
# i5 r2 ^+ x% C4 Z/ w( }5 d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 V. i s0 g; L$ V$ ]2 k
. k4 r- T3 U; Y
set [trade-record-one] of customer item (([who] of self) - 1)7 J( g& O) B* ?) T
[trade-record-all]of customer
4 ?1 C4 ^. i4 K$ N4 l
2 g5 H! m$ k1 D" e) _3 u% s( Iset [trade-record-one-len] of self length [trade-record-one] of self; ?5 U/ l& D: \/ L9 P7 S5 D& J/ Q
. i) }1 r* }6 _+ h. x7 ]set trade-record-current( list (timer) (random money-upper-limit))
1 u" }/ W5 M+ b! f$ L8 H0 [4 v
H7 {; |) V$ @# R- Mask self [do-trust]7 T$ b0 \ X; N
;;先求i对j的信任度0 }$ Q4 B' _6 Q, l4 B
+ j% Z. U4 G) u- Q% J! b5 n
if ([trust-ok] of self)$ ]2 H8 ^/ d/ n8 u0 M1 @8 Y% d5 k1 |
;;根据i对j的信任度来决定是否与j进行交易[
5 }" E" q- S( p% S. iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ a) J$ k) l/ j7 B. Q
l7 x0 m0 ?- L[
E5 L0 F- G) r( a8 p1 g i3 C5 ~4 ]6 Q% b
do-trade2 [0 g1 u* S* D( C; ?, C$ F
8 F6 b [! _0 e/ E; X) o9 m
update-credibility-ijl
6 s2 j. W3 y3 |$ |* s! \0 H) D5 b2 H+ J1 }8 Y0 E* {' L
update-credibility-list
9 M5 E& a& U: q; Y0 o/ _. h2 S& `; J, K- V/ l J$ o, [' F
. t5 ]3 `. |0 R+ nupdate-global-reputation-list
( X4 `( o& g* }# m( H o5 @. G" |0 w' @* ^" O) w) a: C0 Z3 t
poll-class; s& j2 g; l& _3 S. ^% ]
! B1 F- h* q6 H& Z
get-color
7 T& ?7 B3 Q0 S0 Z* d/ O# I+ p# |, N$ y1 w
]]0 ~+ G- x( _: S! w( v* M
4 G9 y9 t* C2 V! }/ C( ~;;如果所得的信任度满足条件,则进行交易6 E8 k- v9 c& N; ?8 m
0 Z2 {2 p+ r" J% I: u
[
) N4 p5 C9 M @4 k$ j+ H# H5 A2 Y# I
rt random 3608 F$ ~$ @4 A. q6 p# V( t$ l
( W# ^- c0 m _+ `" L, W1 t
fd 1
5 c [# |/ {3 S+ r% V
! x E) \( q) U1 |( n6 Z9 P2 H8 m]
. P, i; w1 p5 w, j+ G% C8 Y- i; H& {6 N! p+ H
end" X0 s9 n* O2 y/ l8 @" I
. H& l* i" j2 O' E1 K1 Z8 g3 H( R
to do-trust
" |8 X$ z3 k# wset trust-ok False6 E2 ^' j3 @# O0 d8 ?* D: W7 w/ _* s
/ a0 k B" _9 F$ B3 V: x8 ]
8 Z0 r! s0 k" d" S+ i' a/ i1 }let max-trade-times 0
/ [( b$ f m0 U; f: ]foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ l4 h T7 N- p+ r( \; Slet max-trade-money 0
$ h6 K4 `! K9 v" R) gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& t6 N! n& e; H: T7 Plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 U5 f; k! {6 {
) U4 u, y' v2 f3 q7 F6 M
N( x( i. E+ ?% S4 V7 j7 Y. I
get-global-proportion
" X) I4 Q" l$ N. P% z% Wlet trust-value) F1 x9 _* L( t' l
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)
2 [6 G3 V& U, r' z: C1 gif(trust-value > trade-trust-value)
" n: v, F/ [+ ^8 M! N) ^. z8 P/ p[set trust-ok true]- y+ l# T: G* r( q
end
' o2 q$ d2 h# ~, `2 m2 O0 O5 z0 H/ O3 O
to get-global-proportion9 n+ I; V4 _8 \; z% R/ ]& G/ [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ R8 W0 ^, J* i) R9 {' A[set global-proportion 0]
6 k& _6 c: N. j7 y5 N% e[let i 0, m4 G4 y! T! \" z Q: X* g
let sum-money 03 \# w. e8 d! I9 u
while[ i < people]
& V# V! W6 X/ U! \, l- [[
& M6 J# `3 N5 k2 K/ Z9 m6 x; i: oif( length (item i
% p8 ]: S) ~* P, \ q! F[trade-record-all] of customer) > 3 )- V( r2 O% c# I! l
[
( r. O7 d" e; kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" e5 C7 F# D& G- S: J]# Y: V2 N+ g5 T6 T3 B- @
]
, b( y; J( t5 G! U, K7 y. Slet j 0- S: t. Z7 G* s( \/ O" b$ Q
let note 05 @+ S) N+ w+ i' P+ Y% e0 B
while[ j < people]& ~0 X6 ^9 q+ p& n* d0 l
[' T) P2 F! u+ F
if( length (item i
2 E* r/ m* `* \# p# k[trade-record-all] of customer) > 3 ): p; U' Z# i( Y( E0 I: b7 w( N
[& S7 w6 r& Z# `0 p; @
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 }: q) k, D g, `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 G0 {* ]6 N: B4 v) V; ^/ j+ q/ o
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
e+ `* [% O) Y# t5 V9 G V]) m. b2 q6 I' l" ?
]) q M8 b$ L- s& c
set global-proportion note7 U; o( o5 a# q' M3 @
]
2 l6 x9 h+ n% m, f9 ?. B0 Zend% A# g; s/ c8 m H) s2 A, i
5 x) |1 n9 `* w) @( d1 r- G+ W
to do-trade6 }- O R/ s4 h% V
;;这个过程实际上是给双方作出评价的过程
3 m$ W' L* d3 C* M/ s4 yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 l+ N7 R1 C' D: d, _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 y C3 x8 I8 j# Wset trade-record-current lput(timer) trade-record-current$ |; D9 |/ j# _
;;评价时间
$ w, G* ?) k4 e4 O: xask myself [& E' e. O1 u+ l2 j+ w
update-local-reputation
$ \: u6 Z! a7 r7 ]& I" Nset trade-record-current lput([local-reputation] of myself) trade-record-current+ I; X* u) ^7 P+ o! s8 U* g3 ?1 F
]
P1 U5 @+ Y+ R& _set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 S- b4 m4 H8 Z; ?# P3 l% B
;;将此次交易的记录加入到trade-record-one中0 G) w# P H: Z! O, I. A8 }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 b+ f) W2 ?& i0 Olet note (item 2 trade-record-current )
6 f4 @9 S S3 s. y; `- J/ s" u3 Pset trade-record-current
) P3 A+ l0 W$ T, i9 z. ]# O(replace-item 2 trade-record-current (item 3 trade-record-current))
$ y0 P0 q7 F; n/ o0 m" Eset trade-record-current! @0 Q* w3 U# d9 [6 ?
(replace-item 3 trade-record-current note)
/ o% g6 `. m% x7 l" g" h
0 P/ {, L G( o+ o& }/ z3 F; _2 y4 p, N8 s$ V; N
ask customer [
, G8 j$ m) S* M, R8 `update-local-reputation
, t. B+ }$ C) h2 z! m0 h1 Xset trade-record-current, d& w1 B+ @$ d5 Y& _* A/ p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 J' j+ k6 H6 C5 O
]4 ^, ^# d, O I( K
, J2 Y. s5 `2 W
0 y4 K) A0 j5 N* }6 m i; Yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 O/ O4 |8 G5 B- F5 e
( ~5 K# \7 W% f8 ^3 [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), Q% N+ `; O: I5 b6 B0 c
;;将此次交易的记录加入到customer的trade-record-all中 z* i, A+ n, _* O5 K c
end
: w |! U, l% r# Y0 Z1 f3 P
+ V$ z# E4 A2 ^9 F* @6 o+ oto update-local-reputation
9 ] {4 Q5 l5 [, O- R0 Hset [trade-record-one-len] of myself length [trade-record-one] of myself
& n/ V* J7 f4 S/ _7 D; k/ [& ^' z! i- @
% e a% n$ g. Y;;if [trade-record-one-len] of myself > 3
3 k4 O% N0 N* Z! P; `update-neighbor-total
- ?4 c( @6 C r' a;;更新邻居节点的数目,在此进行; V: _& U; c6 P1 o* w# o5 B! h
let i 3
* X. R: ]4 i# r% T2 elet sum-time 0
$ I+ D, U, L# O( {1 awhile[i < [trade-record-one-len] of myself]
! r0 ^6 s8 V) i3 q1 G0 T[
( x0 k; O% {1 C; `. Z, qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" j, a% S; e0 u7 m/ @
set i; w) \( _7 u5 U& V: n# x
( i + 1)
. s9 l+ B% M% w3 U0 y( f% ~]
V, l/ B' T0 A) Plet j 3
% S j9 u! I* [+ Plet sum-money 0
0 t5 b$ w( |9 p: z0 K5 y: vwhile[j < [trade-record-one-len] of myself]
$ f* Y4 o) }( M$ J [* v5 s) D[
7 e! B5 Y) K+ ?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)
+ ]# W0 z& F2 s* S( Oset j4 R. O7 L) y, `9 ?
( j + 1)* l% V4 S1 x2 w8 A
]: w9 B+ K7 d X9 y2 u- F. i
let k 3
) t9 @; ]. V% ]" k3 j* zlet power 09 f1 Y9 B1 r: n: n" ?
let local 0+ Z d0 u6 R& P8 s' M# }; ?
while [k <[trade-record-one-len] of myself]
/ F6 j) g+ f ~7 _9 \/ ]: u6 a[& p' N( l3 [1 P+ S# E
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)
4 D6 Y4 W: m: eset k (k + 1)
+ J/ R, h4 ?1 S% l( ^] S3 i6 i/ H3 d+ Z G- t
set [local-reputation] of myself (local)- c- f* ^" L6 c0 o- b6 g' Z/ Z
end
7 J" R- ]- r- S7 g0 t! [
7 a2 l0 k2 K# l; wto update-neighbor-total: X4 l# J; q5 t5 E5 z% j* \
/ ~& O2 l5 a# l$ u: ~
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; i+ O/ a$ C- D* M/ l
. U; T2 h- L# J6 `
, {% z# B( c. p. v9 q+ y
end
' U( Z7 L {& o4 E
1 h- c4 x% O0 O+ C: |to update-credibility-ijl
0 w4 F; L# D* `, B" {6 L8 @
* {; y# g$ r9 W9 J2 P# G, Z% X F% E;;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。
9 T$ R& ?+ {1 T# m5 D% i8 X' `let l 0
# T, Z" J9 f8 J' R* O3 y. l" Uwhile[ l < people ]
& e; |! c6 @- |2 t$ T0 |' T9 _;;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
* b. r, O3 B7 ]& U0 r* F[
* l) E+ r- Q5 L# Zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 }2 u/ I- D. Iif (trade-record-one-j-l-len > 3)
! v- Y1 V. h% [7 o( v1 ^3 Q[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
! m3 W5 N' c" ?' C" j8 ilet i 3
7 N& j/ R5 G8 {& J e, X/ mlet sum-time 0
. A4 [% }6 o, ?/ Awhile[i < trade-record-one-len]5 w8 S/ T' X4 A
[
: P9 g4 Q' [; Y1 K; @# _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ _. c& F4 P! t( u# N" j& qset i
7 x" {) N1 s4 O0 E7 t- q7 H- Y1 C( i + 1)2 L6 t9 E5 K Z8 R
]" b. B. H, w3 `
let credibility-i-j-l 0& _% Y+ |, `: @ `( X- ?2 ~' z4 v
;;i评价(j对jl的评价)" w; L2 H. C G9 b1 I8 y8 [
let j 3
" N* O1 @+ W% s* B ]let k 4
9 P5 D. ?3 f5 z7 W qwhile[j < trade-record-one-len], K; S- k* M- `4 C9 C; ]
[
7 l/ j& ] [ [- U+ Z% ]; xwhile [((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
, |: E3 Z' r G6 N5 p7 [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)
3 r! v2 _* _" e+ `9 @5 Zset j
: T$ w& M: L: a L# F& T( j + 1)
" s2 m! W6 p8 R+ s( J% E]
9 J5 w t0 b7 Pset [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 ))
1 B4 I, @3 x( i- l; Q! Y1 b
, O. `1 I* X' v6 o& \3 _9 _
3 }6 a& W! v* I% C0 q- D! W6 vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 N/ s7 S* i( K3 |. ? Y
;;及时更新i对l的评价质量的评价
2 G) d4 J( y# ?2 }% vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 c1 b9 i' |0 m7 B, n
set l (l + 1)
( R. o! u% J& X b7 L]
$ V7 G0 H9 ~# q- N1 F4 g4 nend# E/ O+ W M& C
, T3 |$ Z: p1 xto update-credibility-list
. l) M& W; J( K6 S4 y3 `: nlet i 0
: N- c1 p+ d% }" o4 E3 j4 qwhile[i < people]
4 L. ^+ e4 c. O. _$ j P( J[7 \& q/ m$ I1 X; W9 f
let j 0
1 ^# V& Z8 Q5 l% p6 h8 w3 _let note 0
/ i, J& ]. H Plet k 0
9 w+ A. _' g+ i;;计作出过评价的邻居节点的数目9 H; |* B1 `) [7 Y8 Q* f
while[j < people]7 j g6 q. W1 y
[
# I% l' B. h4 m) Iif (item j( [credibility] of turtle (i + 1)) != -1)- t: R3 D% R6 z- P1 H6 Y+ k5 A
;;判断是否给本turtle的评价质量做出过评价的节点
% Y+ ]( E9 _# c5 ]* D1 a[set note (note + item j ([credibility]of turtle (i + 1)))
! J( Q- {9 \3 O, r) {: x; F;;*(exp (-(people - 2)))/(people - 2))]
1 c% K; z2 [, J% C4 ?) Pset k (k + 1)
/ \! w, P3 V3 J]8 Z1 ?, A- o! h' V+ r) \/ k& o
set j (j + 1)
6 S* O3 t9 ^/ y8 K8 p]
5 e C' |0 g7 tset note (note *(exp (- (1 / k)))/ k)& p+ U N+ ~! S4 `
set credibility-list (replace-item i credibility-list note)
) ], S9 [' l) X. cset i (i + 1)1 v5 P6 T& o, b; F1 I" H; u2 F& w
] O' f, K/ {$ e4 n6 k4 m
end
4 k/ ?& t9 `% F: g' r% D8 n0 e( p, M* L: a- [2 j
to update-global-reputation-list6 p, V$ O" j6 J3 D
let j 0
; |7 K) D; D, }+ M9 Xwhile[j < people]4 f; g% d5 p3 K3 V+ R+ l5 y
[, l8 I( d! G+ _$ _& Y
let new 02 @. D- D0 B5 {9 q& [
;;暂存新的一个全局声誉. A( {3 {! D5 m) Q
let i 0& @& y4 v2 }. ]5 ~0 E, W
let sum-money 0
9 r- j+ K5 T( `- ~ E' V+ q0 F: {: Elet credibility-money 0
2 i" B/ F. p6 o3 ywhile [i < people]* M3 u' c$ j0 V: T/ H
[
; G* H$ V% @0 h3 Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" }* ~% A" N: T# g+ `3 ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 R t K6 s* n8 a8 q$ f8 O) T
set i (i + 1); |! _5 O0 F+ r* v. h
]# }) F4 H7 W' w9 W
let k 0& r/ g7 b; G$ D& X* \. i# C
let new1 0
4 K& V8 b6 O, x# zwhile [k < people]. f2 D8 }# L" i: n' i
[$ x# {! z+ E$ t. V8 k0 c$ z0 N
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)% {% A, ~8 {' E0 u' O9 y- J+ U! A
set k (k + 1)
1 k: B. J/ w k, L( N% }]$ w$ p" r- B; y x. e) Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & f; U6 ~* C: E: q: ~9 m8 q( H
set global-reputation-list (replace-item j global-reputation-list new)
5 q* f+ \8 r* ]7 v. e0 a) ~ P9 Nset j (j + 1)
* D5 Z- P4 j- W3 j& C5 P]
9 I) K/ J* t, n" I3 Eend
( P4 G$ c- Y( \1 x: h6 U7 r8 i; c$ Q/ G% A0 ^7 z( t
8 z8 ?3 s9 ]. A: q: B H* P( U5 W# i4 H
5 h# h P7 a, h" |. C8 l _' vto get-color
1 @/ ?" k. U% x- v( D
# z; Y5 j B/ x: E- u) {) g8 p0 ?set color blue( f+ t; t- l1 ~# j* W
end# |1 V. o7 n) I L* i& E- j N
r9 r; J$ e' x& `8 p1 o3 ~7 u
to poll-class
; d7 p( x9 u5 Dend
* w1 v i- H0 t6 K. r" S. |1 S& f- A5 ]" _+ S' H
to setup-plot19 C( r$ z* q4 r0 i
/ R0 u4 W$ r9 T' b
set-current-plot "Trends-of-Local-reputation"4 n) i4 I0 F3 x
3 C9 b! ^/ |: u7 H. c
set-plot-x-range 0 xmax6 V }, B; T0 s! Q; V5 F
* Q& C8 ^- T) cset-plot-y-range 0.0 ymax- ~2 |, p5 Z% n& _' L- Y
end
, X3 U" s: k5 D, p" \5 p* C) B4 L$ `' U5 n$ w
to setup-plot2# D8 z1 ^, B' r- v' [2 `
% W$ b* G# N' U5 g0 Z
set-current-plot "Trends-of-global-reputation"
1 b+ [3 D% c9 @/ W. B; c9 N
' |9 \ q0 R1 bset-plot-x-range 0 xmax( a) O1 W4 l% B
9 F0 l2 m; Z {5 ~
set-plot-y-range 0.0 ymax
; j# n" E, v* J, Tend* k5 y: N8 I" ?* h: u
' [; T- ^0 k5 E, d2 @
to setup-plot3
) q$ U R+ }( W( T6 f, F( W+ N
6 i1 k/ p; h: a9 `# Oset-current-plot "Trends-of-credibility"" Q- t5 Y$ y! P: y
9 R1 Q, o; T/ I) d& ?6 W6 Y
set-plot-x-range 0 xmax
- T( y4 T# v- s; ?$ X6 m; c* T( e+ a5 \; ]- ^
set-plot-y-range 0.0 ymax- V3 y6 S) @" Z0 y* D
end$ G+ A+ _5 e7 l" g, j- L" D! F) v
- W2 n$ Y; D z Tto do-plots% p" M2 n. d; R
set-current-plot "Trends-of-Local-reputation"5 {8 R1 U. \0 f2 \+ @/ I$ f, m3 Q
set-current-plot-pen "Honest service"% ?* I5 y% j) j
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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