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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 u, o3 b O6 q) i/ w) c" dglobals[" |9 Z' l" X) I# \" b
xmax' \; ^4 @' X& [
ymax6 N# U/ Q' t2 t0 h0 R4 Z
global-reputation-list( j D4 h/ {2 B7 O1 C
8 }- C' k3 ^2 L* [$ m5 b;;每一个turtle的全局声誉都存在此LIST中
$ G# O' G" p3 D; wcredibility-list
$ B! K R, L6 C6 d) U;;每一个turtle的评价可信度
' W* U7 @9 N- shonest-service/ l* I; J& o5 W5 G
unhonest-service
& Z* g3 F9 R& K7 `- ~oscillation
1 C% A1 {( m( A9 b% B0 _$ j% Prand-dynamic1 d C9 S1 s' a
]
! P! Z& X' [% U( x' U& G. k m
' ~5 w( v7 F- y$ L5 Kturtles-own[/ ^7 h# j+ k7 k: L3 l
trade-record-all" w; S9 m" w% ^) Z. ~
;;a list of lists,由trade-record-one组成+ C3 j$ p% U+ ]; D
trade-record-one
. v1 l3 P" x, ~' l6 ~;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 U Z3 v, Z; Z$ \
* d( ~4 t% G/ R* I;;[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]]
' R" k/ F- h6 f& h0 }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]0 n9 y' B( |8 b
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& F3 y4 v' [ [
neighbor-total9 m$ B8 w+ T& C+ k' R
;;记录该turtle的邻居节点的数目
; P. y+ m; y0 M2 m0 S' }2 \0 Ttrade-time
F" U5 W B+ y6 |( q;;当前发生交易的turtle的交易时间
: R7 P# F! Y& ]9 e ~appraise-give+ b! N$ K* T p! Y, R4 b, @
;;当前发生交易时给出的评价: z) A+ L( b2 |+ \" k' u
appraise-receive7 E2 }" p3 |/ F0 T" o% Q q1 d
;;当前发生交易时收到的评价 W: _! I# v6 c K7 O
appraise-time- a- K0 M7 ` j; E: B4 z( |6 Z
;;当前发生交易时的评价时间) l: Y/ V) h' x& M z1 T
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 b2 \' l6 q2 A! T
trade-times-total6 q7 E1 J. w/ p& t. J
;;与当前turtle的交易总次数
" W' M1 v$ }) Q3 `6 N- p, N1 k) Ctrade-money-total5 u6 z- v0 A" o$ }+ V
;;与当前turtle的交易总金额
: y0 z. U; D" c: |local-reputation
0 O. K8 F+ z8 I& ` ~' g4 o1 bglobal-reputation, B4 b. M# W; V
credibility7 V* j, [0 F) N8 @" J! }8 w
;;评价可信度,每次交易后都需要更新/ _/ _8 }- d: d
credibility-all" P+ ]+ n0 I& w9 Q4 r# }
;;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
8 z J: R6 d3 ]" ] B* \5 J/ c/ h) s' y! ^5 `7 D0 A
;;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; ]: N/ T5 }) i4 V0 B5 u
credibility-one
0 n4 l! c1 x* `; z/ 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
?* C1 A8 L% J5 s" b+ H$ c/ t2 \global-proportion
+ u4 V9 y9 S, i% ] b2 {' dcustomer
) T+ I5 u6 \- B I# Wcustomer-no
2 J; M9 n* q/ n% l# @. Mtrust-ok
7 B$ L) s/ [/ K: q9 _trade-record-one-len;;trade-record-one的长度
! K! d: Z% r$ |9 B( z" m]! e; S4 U7 o& a6 ?
) p' s) {. n5 a9 O;;setup procedure
& e% v) m" T2 I1 o# U( E+ ]5 b# j' T/ V) M4 O& I* Q' U0 e
to setup
# w4 _. E: s D2 r" A
5 v$ a+ a, ~# u1 v* Vca
- d6 h; M7 X+ Y& [ R' `7 W7 X4 O, @5 C: A
initialize-settings
; c: g+ I1 \+ k h" N" U# `* Z) o ^7 y
crt people [setup-turtles]- h* _+ U# _/ \# c. M( p% m
: b0 }3 j$ o; m2 O, C# Y0 R6 E
reset-timer6 n$ p; r9 f0 N; |; n- ~
3 @ ?* V+ {4 |, R- ?0 g( m
poll-class7 U$ m' M* z* M! P
! i; ?' K% E, {1 U' }; b0 @
setup-plots
# _4 \6 X1 N6 o* C8 A" c& c# j9 d0 H0 K) w! `# j2 I
do-plots
+ i( A4 A: t" Q% w; L- a% u9 c9 rend2 L# j' C; l+ N8 w/ N
' C {8 A# k r, D( R
to initialize-settings( N8 s+ h: Q" Y" x. Y
% v' [( m. L9 A8 R0 {
set global-reputation-list []
. R6 ^4 f" @. H: T! n
) y) B: P4 H, `set credibility-list n-values people [0.5], d+ d1 q1 z$ c
% \% r# T9 c1 K1 h) j
set honest-service 0
/ @0 w/ f4 q1 b! n
( G/ B g2 a. M5 G8 @2 Dset unhonest-service 0
0 L5 _7 _5 X7 ]6 O' p# J
& g8 n5 c8 k b, N7 ]set oscillation 0
( K/ E, K; v6 Z1 [4 S _
5 M! |) F# z* J! mset rand-dynamic 0* L; E6 U# j4 _
end
# E! ?$ L8 w4 }7 d
4 M: `; V" L* ~ ^; N3 Jto setup-turtles - p L, u2 V1 o8 B3 N6 |& b% K
set shape "person"7 b9 d' H% I$ }8 T7 H
setxy random-xcor random-ycor
" c7 p' Q$ n1 I( aset trade-record-one []
$ g& l, t1 x4 ]% S2 R4 S @* o# t% N9 P+ ~& f
set trade-record-all n-values people [(list (? + 1) 0 0)] / j9 n' d, j3 p& X6 f
1 x8 } C) }) \" k. x4 F
set trade-record-current []: \' ?9 Q7 j# u6 Q5 o) R- H7 F, F+ F
set credibility-receive []! \- D2 L* y( p( C+ s
set local-reputation 0.5; p$ L t+ P4 A" x6 r7 ~
set neighbor-total 0' y. D; F8 `% u" e' c M% i
set trade-times-total 0% Q% Q0 C0 g2 I* b5 ], W
set trade-money-total 0
; k8 h: b3 }# [0 B: p) q3 _set customer nobody
* x5 L8 E5 ?- a4 q# w, eset credibility-all n-values people [creat-credibility]
/ H( `2 M$ g- Nset credibility n-values people [-1]
}; u, p# ?8 qget-color; w m- s0 T# w6 r- f
/ m6 y0 f- _9 ]! c9 _0 H* T6 yend
Y" N# r, Q' {
5 ?+ I- y! K( t( qto-report creat-credibility
; d4 E, W8 C9 q1 ~, Treport n-values people [0.5]
0 j+ J4 y" }, \8 w. i& D4 I4 u$ zend
$ G' r" [, K! F! _8 ?
2 w( t, y9 K7 [% Z7 N% ^to setup-plots
' @7 U# ]! t( z6 H! [7 X7 T$ C% u3 [! b3 z) C8 `
set xmax 302 A- a( T9 t- Q1 r
% e1 h$ w/ a/ }7 ?" J
set ymax 1.0
# i1 d, K% x! Z, c( x
& X/ V) B! x6 u* |clear-all-plots( x8 W3 Y; m2 ~0 T) d
8 c8 t7 o0 v6 vsetup-plot18 D9 _4 o5 ^( D; b
$ \& a! q. F! {5 t/ }% e- I, v. I
setup-plot2
+ C7 ]7 U- ~5 |% `2 ?2 C0 t( | e7 y
setup-plot3
0 I8 x$ z- r7 n2 [& V$ ]! send
. K+ B% X3 [: D$ Z
9 B3 Z7 }3 H# E+ u;;run time procedures' O5 P/ c( h- r3 C5 f9 M/ q7 J
/ u, ?- \( u- ~) Oto go
# T' H# k+ \8 x- Y; t, H* b- U+ p9 D3 r7 K+ @
ask turtles [do-business]
0 r* Y$ L5 U" Z9 v1 ]7 L$ dend- ~' ?- r2 m2 K) f
" t C" Y8 h; y5 V8 S& k0 n( h
to do-business
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- u* m" x8 I, q+ C/ y8 c8 m' Irt random 360
% n# ^/ q( B! v9 K& q ?8 R$ ]2 U& G) h& l
fd 1
- Z2 _) R* N; y, Y- y
0 f- Z2 [" M2 k* M& }ifelse(other turtles-here != nobody)[/ K6 P6 a M2 _ W3 Q
5 @, S2 |7 i: ^& B, q" B6 |: d
set customer one-of other turtles-here0 c+ Y5 W& z: {8 q4 C7 {
( f+ z) A Q# F- N* b5 M. u$ H2 j;; set [customer] of customer myself2 Q3 D; x" w& K$ _
7 D- m1 X2 [/ h4 \/ e/ r! i$ Bset [trade-record-one] of self item (([who] of customer) - 1)2 O, p# b9 u' |9 J: T3 Z0 T/ d& a
[trade-record-all]of self* a5 e( N3 T" M
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 k% }: s8 D$ ?* ~
V5 J) I, f( n# _/ b' xset [trade-record-one] of customer item (([who] of self) - 1) t0 t, \* L% N( ^6 N9 |5 [- |/ _
[trade-record-all]of customer
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5 [. N" u N: b* g: V+ hset [trade-record-one-len] of self length [trade-record-one] of self
9 a v& C0 _. {/ m: A2 A$ E1 D# X1 p9 `! j9 s1 }
set trade-record-current( list (timer) (random money-upper-limit))
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3 v8 J! @5 u* J. o" J: d: h$ task self [do-trust]6 i; y5 f/ R/ E* D/ g
;;先求i对j的信任度2 G) S% a# F& T9 p
: d* F) \% G R9 s2 {7 ]if ([trust-ok] of self)
5 N$ D4 W$ h+ Z. W) S4 k;;根据i对j的信任度来决定是否与j进行交易[
3 F2 b3 X% r, J5 m% j% mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) t9 Y& i& L" W# x8 t n- Z
' P# e5 i+ g# Y9 q[5 E1 I, A1 p H. U }
/ W5 i7 y7 K% K( X
do-trade
/ `+ [7 J+ ?& Y0 y3 L v6 }. {% E- V/ B2 J- F3 F* ~
update-credibility-ijl% p4 o& n! k6 ]5 l3 L
+ E# Q- d6 t' ], e
update-credibility-list# U4 R: Z, M- J; I3 L5 ~
- f+ }& J! s* w2 ]2 J: u4 d6 h b* p j1 [( H
update-global-reputation-list! A& E0 P' O C8 Q& L- a
$ I5 B- I3 o8 h. F, J$ b
poll-class$ o: f) g2 l+ V+ a
4 C$ w! G, i5 c9 @( y3 l
get-color8 L7 I: u$ K/ v7 o
6 X. Q# h _9 s+ G( ~3 |, P]]
7 P! ^4 O. X C1 E
8 {0 `. z1 j0 [( z0 |+ f# g;;如果所得的信任度满足条件,则进行交易
& j* @& l! z8 W6 }, c6 v" k4 j8 F' G: d9 l1 s0 E
[
7 \/ J1 @+ \6 F3 @. l* V0 M. L5 J1 P: y! Y
rt random 360
( M" f2 y% p0 ~2 G) S! M& S
( `& j3 u- H! U: Z# |& Sfd 1! \9 I3 c) E! w! F
$ N5 `6 _# ]& C, Y8 L% @: c]5 m6 ~; n. T7 L2 I* A: B' Y
" z' [! C6 V8 F$ x
end
- W; i) \* z" k' ^7 e2 ^; \6 |6 [, O/ j$ y0 X/ r. B: S! V" Q
to do-trust
6 Z' ?+ K: a# b7 R4 q# e2 o5 ?set trust-ok False: d. M( V6 W# P
/ z+ j! m- s; \; y6 R% K
+ {% \# c9 g& }/ Ilet max-trade-times 09 M2 K& ~( {; V- Q9 k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% q' T2 p# w% V8 i$ p& e! olet max-trade-money 02 f# r, j- j2 z5 O: a4 f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 G; m2 r$ w7 I3 O: Plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); s* ~' B5 j7 k' b+ @, w* |
7 O1 r* b- h) b
( p; p5 [! J- o) F: F4 }
get-global-proportion
1 z4 r/ D) [& P: \$ `7 N7 B2 Olet trust-value
$ U% H4 _: k/ `7 R& Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)8 s' Y* d$ l0 a
if(trust-value > trade-trust-value)( ], L' u# V; m1 `% C; A' [
[set trust-ok true]
, o/ i0 R0 a9 y% x1 [end
8 D3 a7 \% s" T" o# w0 H( L' c& ?' R' H+ d4 R
to get-global-proportion
$ m" ?8 v# j: \; D. ^6 h ^7 w" mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( e* P. K5 F4 ][set global-proportion 0]/ y7 y' U9 @! u& G D% r; f8 q* ^& d
[let i 0
R- t5 y2 k* S+ J) u1 ~let sum-money 0/ B4 R5 {7 k9 L" y+ N7 k6 U
while[ i < people]
4 S2 b' L, e0 [& [* [1 [[
9 v) A) u X6 I' R& A `if( length (item i) t6 d C$ C/ ^5 {, ^+ ^
[trade-record-all] of customer) > 3 )
- p( e1 Y/ y- l# S[
( E% u: j! _4 h" I: E0 U, Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' q8 J2 Y% w; L# L- N" S! s
]# i; Y5 k. l1 R* P: F( o& A! _! m
]
1 f5 g9 T j; r% tlet j 0
3 p" H3 i" J+ p( Q7 v- R4 b# q; Ylet note 0, X3 q; Q5 f( V' i
while[ j < people]
8 D8 I0 {& ~* f3 P2 t4 E& M% C[
2 |. D( Y9 Q8 @ K, Zif( length (item i
0 [# a5 F( q" d# _( Y& h[trade-record-all] of customer) > 3 )8 D7 C6 z' P8 q7 @
[* Y9 H" M: z, @: D# M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) ]% ?9 W/ f; E) m2 z/ t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 n' Z& C& ^. a# `( ?: ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& k) P8 N* w2 P]& b( H1 _: c% g8 ~8 E
]
B% O4 O4 W. u& Qset global-proportion note) q F3 D7 I; Q/ y4 ~; [! L/ n
]& X9 O) i7 N' A# w, E, V M
end
9 p6 y a: ?! i% A: I) R8 p0 A/ c
9 ]9 s5 d9 t! P7 P" Zto do-trade* f. _! o9 Y2 E! z* F2 J$ {0 Y: @
;;这个过程实际上是给双方作出评价的过程% j' {* \4 d9 N2 x- o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( |% H& Z1 n- ~) x9 h3 b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" Z5 D! \& g, n# j* A4 u0 ]set trade-record-current lput(timer) trade-record-current
5 _( y* U6 ^$ L1 z5 m3 S9 ];;评价时间5 ^! S6 S8 d2 `. s. [9 ]
ask myself [9 T+ M7 V( j/ [5 E; q' f# J
update-local-reputation0 B% ?9 K, O% S6 Q, x
set trade-record-current lput([local-reputation] of myself) trade-record-current4 ]7 F9 K' y6 r. [; B
]2 F/ }. k% D) ^& {! L. ~4 B- @, i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# Y+ x) Z( r; C n$ f. P: d F
;;将此次交易的记录加入到trade-record-one中
6 R I) P9 r `8 W) h- yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ h+ ~# A5 p( P+ D
let note (item 2 trade-record-current )
( W4 F" a* m0 a6 s8 a/ {set trade-record-current
" ~( A; I7 I! P X(replace-item 2 trade-record-current (item 3 trade-record-current))) @8 ], k" f' s5 c5 E( a2 a' i
set trade-record-current
: T) n. |: ~- B7 O(replace-item 3 trade-record-current note)
5 ~) u/ J X, g1 A0 Q( U7 h
# U3 Z& j0 @& V: v" K7 s+ K# |3 d8 _3 d$ Q* p3 m* N
ask customer [
( e: L1 m' X+ @# U: Y' G. Aupdate-local-reputation
3 X6 U. i( B2 h2 h- [2 s1 _/ aset trade-record-current
9 T/ H2 _" {6 G+ e. y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * j9 q7 R3 v3 `4 Z0 v" ]8 G* w. h0 X
]
: ?6 S- z: _5 {8 C- `0 S" h) n
3 O) t5 G5 ]* _: A& c8 @7 y g$ q A' w# ^
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- _' a6 ^; t' H7 \9 P$ V% L5 ?4 f0 R# Q6 [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 e! F' t, b/ o9 K
;;将此次交易的记录加入到customer的trade-record-all中
5 x2 ~: l3 r9 |end1 t/ ~) U8 [1 }5 z$ f2 y
2 e W2 e% B- z4 P! m
to update-local-reputation' ?) v) s" b& t) l
set [trade-record-one-len] of myself length [trade-record-one] of myself
( z. W8 l6 ~+ Y( R6 p3 G+ m- `: z, `- Y1 L8 w9 H- }
7 |+ z4 Z4 |# y' }- {: ?! D;;if [trade-record-one-len] of myself > 3 0 g2 K0 s$ ^; }9 o
update-neighbor-total
) k5 I- x& V3 G8 M; j;;更新邻居节点的数目,在此进行
* b/ O. {1 J, d1 t- r& F2 z5 @8 Slet i 3" S3 R. u8 [8 I3 Z4 ?
let sum-time 0. l* p2 k0 x- t1 Q& I
while[i < [trade-record-one-len] of myself]
3 f" _* \. t1 _; B[
; ~, K h8 l( F& c2 L( xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: y! [& e" i5 ^" o4 e1 mset i; W4 `2 D U% P5 y& q) S f
( i + 1)
5 n8 _- g7 G6 \- i- g# [: k]+ ~7 I. ?( T7 |7 U
let j 3
5 z- p: U- l. F, \( @let sum-money 0% o% z2 w+ |4 \& b; N
while[j < [trade-record-one-len] of myself]
J0 Q4 ^! J) M5 b$ H" }, E! a[
& M3 ?3 p* ?6 w2 g: Kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% q* G, S" a# a! _" p8 ?5 J+ Sset j
, h6 T# L$ i2 z7 z ?( j + 1)
. y$ Q7 `7 d3 F" T+ S4 J2 M9 ?4 r/ ^]( }2 w9 S& p# y6 L
let k 3
* L" n6 q! }. y7 a8 c1 W- ~0 o% zlet power 0
; U% @. t* d0 p% }let local 0
0 X. [( D# u3 Hwhile [k <[trade-record-one-len] of myself]
) a. y: D; c- H# W4 L' O3 z[
3 v7 i& ]% k/ z; m9 ^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)
, }' F, o! v. l' |set k (k + 1)
; [- r- ]9 M0 x]1 b& |, W! }. A- [; z8 [
set [local-reputation] of myself (local)* T: D! Q4 o* j
end
" \, m2 W- o: F' X( ?8 U" k, W4 k P% [4 r5 h, L
to update-neighbor-total" u3 n, M. U; z# _
( h! ^% I C" X) w% o& ?
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) j) p+ R; o ?( S) a1 g, _
9 H. ]* W$ B9 T% F# Y0 U+ H4 W; M" S6 }/ B6 S4 F4 n
end% O, ^( }0 ?0 L+ r
1 n" R" W. y' y
to update-credibility-ijl + g- ?# B% }. t2 J4 [9 D
g5 f3 n3 | d# R) ~;;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。
6 o9 r) D( l& l' M- Q* q- Q2 {let l 03 x! @7 h3 [/ W2 l& O' D$ m
while[ l < people ]2 n6 }5 d2 B! b; }2 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/ M# Q! @# \" T$ R
[
- R! e0 Z0 J f. Ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 G: D5 g4 I7 uif (trade-record-one-j-l-len > 3)7 Q/ M7 Z- k( o1 B1 ]
[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: A& z8 K" o& U% h
let i 3
3 t- N2 t7 i% Ulet sum-time 0, d) ?; F7 E& D5 s# D
while[i < trade-record-one-len]
4 O+ P$ |) {) q3 \. s5 l3 s8 _[) E/ W* |, ~1 ]/ U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 W0 q& M" z. g4 i
set i
% n) r( T- V" w, N! F1 `, O: q6 s( i + 1)/ Y$ T5 f/ [. d5 j7 X# X0 L; F
]6 J9 S8 b' L& o, k+ y- F/ r+ D
let credibility-i-j-l 07 Q0 N! z6 v; N, S' j. A7 [
;;i评价(j对jl的评价)
- I/ r2 g. h; u! \let j 30 N; z& l, X# m( K
let k 4
8 @+ o- _5 G+ Q. |while[j < trade-record-one-len]/ K. W7 J u: t2 g- ]
[% N8 r: T8 n G( Q, i% m
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
) X; q# y* d5 ?+ 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)
- }2 h- r/ b: a K3 m) lset j. |' Q' l- J. {/ Y. W4 X( `$ Z
( j + 1)) k+ f. j" r9 e) ?+ ^
]
, o$ x- t! [& f& c6 N# W* Aset [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 ))
7 z' l! h, u8 S0 [9 L6 O& x- C
: Q/ F2 B* _& d, [" R. u+ ]$ |' F2 V2 k r; I' L3 [: H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
B4 ?7 n A; k1 z;;及时更新i对l的评价质量的评价
5 j8 y% R, Y4 y' E9 mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* n$ L/ A2 ~7 ^: i4 g2 P% pset l (l + 1)
1 A9 F- ?- Y5 i' x- g]
% T; J9 m( e* E" xend
# Y8 f, C0 ~. d4 O) x, G q K& ?4 W+ r' p
to update-credibility-list
. d2 D. z+ G% W' T7 Wlet i 08 o# u6 B0 h @/ c8 g& l
while[i < people]# d( h: x8 c+ g, |) l* \) L
[
B! o K# R& s1 H( Dlet j 0
+ A, O: E3 _9 Clet note 0% @. t4 x/ ~5 N9 F' C4 s
let k 0
Z; g% x6 Y' M0 F' S( y;;计作出过评价的邻居节点的数目
. y2 v$ g7 m8 ~& u4 M0 ]while[j < people]
/ U. U0 l/ u9 h, ~7 i[
* u; ]6 l* C7 U/ |if (item j( [credibility] of turtle (i + 1)) != -1)
6 n9 r6 I" x" `: d1 d. l" {;;判断是否给本turtle的评价质量做出过评价的节点* C- \; @ L I' k
[set note (note + item j ([credibility]of turtle (i + 1)))0 x% M3 H5 f( C$ T8 g4 T2 i* X
;;*(exp (-(people - 2)))/(people - 2))]
0 G& f$ h2 p6 `4 p0 E2 X/ Pset k (k + 1)7 g; \9 o6 f9 `! m( c1 E
]" ?' M1 O% @2 v' m
set j (j + 1)/ q$ A: Z# g2 w2 f* Q$ ]+ z
]
4 n6 p: _$ N4 V4 sset note (note *(exp (- (1 / k)))/ k)2 M+ c. I$ J) b/ h
set credibility-list (replace-item i credibility-list note)
4 T' X6 Y$ J+ q7 ]; {2 ]1 e( n, tset i (i + 1)0 }/ j/ S) _/ z0 {
]
' r) Z5 M. [( K$ Xend
* e P7 B- ^( ^) _9 f# C* l
" ~ w* ~; b9 _' l8 m& F6 Dto update-global-reputation-list- G, U; ]7 z, k. X; B: x5 I s, C
let j 0
) |- t' V: O4 _while[j < people], k1 p' k/ E F; a9 ~
[
& ~; s7 p+ H8 a. N% r+ X% wlet new 0+ w8 D1 R! y: B) p
;;暂存新的一个全局声誉5 F% b7 Y V& N0 B" ~" Y
let i 0" _" P4 h0 g6 Q. \ o" T% n) N" G
let sum-money 0
# z$ C/ P: \- u+ xlet credibility-money 0/ @& k' b9 }& C8 ^; m) B
while [i < people]
, D1 t; a8 e( m- J5 [[
! ~! X' _9 g0 I6 f# ^1 ^set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( e, ?; u. ]( J: I
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- ~; \# k1 l' Y- u/ \
set i (i + 1)
7 s& B1 k5 P# _: M8 {$ R]4 u o# ~: y6 p2 J
let k 0
/ v7 K( E9 I- _/ P4 B7 Y" D8 Hlet new1 06 {( Y5 {( T$ @& |% D
while [k < people]
9 w, I$ A- e/ |+ O[
+ e- j' R1 u8 xset 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)8 j& K4 A+ p0 c/ y- F9 M# |
set k (k + 1)
8 k; J0 f+ J8 {8 c! B) f, l]! o/ F/ ?/ g% b4 y! _" J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 W8 m- j% U7 g7 W) wset global-reputation-list (replace-item j global-reputation-list new)$ r, T. m+ S! z9 T) d" n+ A( y
set j (j + 1)
1 _8 D0 F" Q j& s" n' R]) G0 U1 O1 n6 L. n4 v, z( k0 [1 X" ]
end
0 B# B. }' p! f! c; {, Y. D' R+ }
- i3 }8 h! f' z. X) ^. I* M0 A g# o) ^. W- |( J" f0 n% `
+ o; c. Y+ J7 M% b0 S9 B7 }3 `
to get-color
) k7 i: _4 b' |7 R+ s
. Z# d3 K. ]+ G7 {set color blue- M$ B) H/ l; M7 O/ U) N
end, A; r) [% k1 I. W2 U" W2 O! a3 q% s: T
# |9 t; g% U' J' cto poll-class
* E" ~# G7 ?/ |( o8 U9 Lend$ j/ s8 v# U. N! Y
7 b3 z* L; o3 G" Wto setup-plot1/ J" V7 D3 Q' u
- M! \! \- r. F! i5 a2 fset-current-plot "Trends-of-Local-reputation"
3 o+ b* P( D4 ~4 ]" v+ q6 U+ c6 G8 d1 q3 ?/ z% P/ l
set-plot-x-range 0 xmax6 B. x- k. n' G, `
' x _$ ^% X' W% ~+ u6 X7 Xset-plot-y-range 0.0 ymax
B, T1 A0 x7 Nend
0 v' e% ^, t l; b! u# W
' I1 i; `# i$ x/ x2 eto setup-plot2, b; m) A+ |' T3 B. y
. @% N' f+ @6 y/ R3 i% g( ]. aset-current-plot "Trends-of-global-reputation"* O3 c* |, f; a
" F. K: p2 D6 {- P! A: O0 K2 ~
set-plot-x-range 0 xmax$ w( Y. G: B) R+ Q* R7 @
: v' |9 q/ u1 B" q/ `
set-plot-y-range 0.0 ymax
7 M: B8 B* j3 a4 X- ^end2 k2 e! D( X+ I' }
% T1 G2 F1 ]% l9 S% _2 E
to setup-plot3; Z! C% ?4 d2 j! w5 P4 P
" {' o" U+ }5 ^
set-current-plot "Trends-of-credibility"
; j! v3 O. \7 t/ ]/ g9 E6 k% S2 s5 [9 M4 B5 n2 Q
set-plot-x-range 0 xmax& s- k& x* D$ i$ u
6 ?) {1 ?8 m+ I/ @. k! p4 fset-plot-y-range 0.0 ymax" u, [/ z! k. o# t
end- X5 O. c; ?, q2 |, w) j
4 Z6 d u2 @0 `- y. T
to do-plots9 d% m2 Z6 V6 f7 x: V$ d
set-current-plot "Trends-of-Local-reputation"
) X* }5 {% X& `6 Aset-current-plot-pen "Honest service"0 K- ]" ~. |* W h2 U
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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