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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
" o1 Y r1 A! n1 i# S$ A2 ?globals[$ m4 y2 I+ D$ v) G2 S; G# g: g4 ^
xmax
" n; o" p* Q* V- fymax$ D! N4 ~# v# U( Z3 J: B9 c
global-reputation-list
0 Y) f4 [) ?; G7 c* K0 M, G0 `6 W: e2 z/ j; [
;;每一个turtle的全局声誉都存在此LIST中# M/ r2 r) q7 z0 I4 r
credibility-list. K8 ~! [: x, Z% `# f( }
;;每一个turtle的评价可信度
. d0 a% ^2 e: S9 t: ohonest-service
4 U q) a* v0 O* |7 ounhonest-service" H7 N) m& J& f# @
oscillation$ b- E$ s1 _$ x( j
rand-dynamic8 V3 d/ r: d4 t2 m
]
$ c: q: A! y3 Q4 i8 ~( D0 O9 y
. `( S! G! @; J4 p/ B3 n wturtles-own[9 i3 ^8 P$ u( y9 e0 |: q( Y
trade-record-all
% n3 A5 Z0 b2 s1 h' B% M;;a list of lists,由trade-record-one组成: v/ U9 n4 x* ?3 o S* c
trade-record-one
/ ?9 r! k/ d8 l$ S8 m6 d;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. \' t, ^/ A2 O0 @& [
+ V) J4 ^# i/ ]0 A
;;[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]]" \/ O0 l A5 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]5 w5 \0 t2 I3 h h- |$ S) h( r# r
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
* v3 C- g: |1 R, z Z- _neighbor-total
5 o% K/ E% Z. k5 Z) f8 V& h;;记录该turtle的邻居节点的数目! s+ t6 `, R/ U) P' y8 `& w
trade-time% g& H+ O$ v# }, H$ g% J
;;当前发生交易的turtle的交易时间
! b. q3 _; Z# U( \appraise-give
; O4 z7 H% c1 M" |;;当前发生交易时给出的评价- Y! a0 U. H" O
appraise-receive' l% F9 l" |$ [; D, `' t
;;当前发生交易时收到的评价
- O6 f; V0 B) X9 P& s$ T6 W7 m( Cappraise-time- P f, E+ j9 W+ b8 S* }; `; L4 v
;;当前发生交易时的评价时间
9 _! g# D: _8 \: M- {: llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* n" _. e# P+ k; x: Q( e/ u$ q) @trade-times-total
2 I: N0 @6 j# n6 p+ ~ Q) |& i;;与当前turtle的交易总次数! G p8 z/ r# w7 }( e
trade-money-total; }) D' H% u0 @- y- p% D
;;与当前turtle的交易总金额
# y8 v3 W( X; c) m _1 `local-reputation
9 e/ i2 @/ Z ]global-reputation
# z8 R2 B! e& j' v( d# ecredibility+ n8 \( L: B2 R/ j/ ~6 [. q
;;评价可信度,每次交易后都需要更新* c/ t( y" U0 Q9 I8 q2 n3 S- Z
credibility-all
# X* ?6 q6 o* K;;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& ~5 _9 T) ]" K! g( `
$ v& G5 R. r6 F6 `/ N( b+ q. D" @;;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
5 }/ T% N/ q1 B1 L5 P; S$ acredibility-one! t+ d5 j6 i4 J1 {( c
;;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" y: o9 M6 I) q) e
global-proportion
4 M" I1 f$ b, R7 y$ ]: _customer; m( D8 Z" f! z% v; ~
customer-no
p6 J" G i7 a5 k. Q. {8 Gtrust-ok
. {/ Y. X; \9 U* N, G& T9 {% ztrade-record-one-len;;trade-record-one的长度0 B+ d- Q/ x3 Y+ f
]
2 z& S' H8 q% ?( R: g2 b/ H3 F$ X& t: I7 a3 ~0 m. }, S0 }5 K3 e
;;setup procedure( O8 r f4 M9 m8 t5 |
& P. L. O, s" M- vto setup& U' h, c$ Z. a% Y
* x3 ^: g( w& Z% |, F9 bca: o/ c2 @" W* d1 @: D
" x! V' y% ~; D* a5 M; hinitialize-settings1 t3 s; t, u. z
I! M! o& ~$ m; g4 U$ qcrt people [setup-turtles] Q& |; y1 n* D1 P, [: o' M) g6 D
8 P, z9 K/ _: y4 ? breset-timer9 R; h# U* Z8 u, y6 y* p5 D8 h
: H( r/ N; X! f( u1 q7 {& ]/ @, Gpoll-class
$ |( M- U: `, `7 Z, T d' T- ]
! V0 _/ s- W. B; q# _; c% Hsetup-plots! d: u) k, \# W. n3 i+ ]8 J$ S
1 D2 i) y- n; ^( W0 X" Y
do-plots% ?+ R5 N, w. I z
end* r% s; }- V8 m/ R- }
8 O, e& L: t3 @$ f5 x0 |1 Y! D
to initialize-settings
; I$ z. @) ?. m
7 `& H+ n3 i2 m2 g& Oset global-reputation-list [] B; k5 U# D) X) a4 r
! [0 R0 H7 }$ v4 s
set credibility-list n-values people [0.5]
z* {% S% p# J, |' v
- v! H; r0 d& C( xset honest-service 0
9 c" b4 y! C, e1 u, S! G
3 N( w7 Y& e" m( `, D" z% D' t) H$ Bset unhonest-service 0
4 t1 D* |" q8 n- J8 e5 c
$ u x! M( @% Y; \set oscillation 0% o# Y W) q# t V v
& S2 K& R3 T- R% d e, N
set rand-dynamic 04 F! {6 ]9 W! E1 D, E2 l
end
8 @0 z" A+ c! _# w% W" i) @9 _, R& X4 M( T! n( ^, B! N
to setup-turtles
/ N9 N; h' e3 c# `3 K% Q, f& Kset shape "person"
! y1 ^, Y! N8 G2 v" _6 ysetxy random-xcor random-ycor* H7 j# q* Z5 S3 V/ m$ O
set trade-record-one []
+ G0 I8 e* U N+ j, _
) x% z& [, O( u) t& |/ G$ n4 [set trade-record-all n-values people [(list (? + 1) 0 0)] 8 ?0 u4 q0 R& f3 ^& q7 g
6 @% k$ N k# P+ j+ ]1 h
set trade-record-current []
* j$ R( G; Z0 L& O; T5 Mset credibility-receive []& i; X% ]1 z# N9 I8 o. `
set local-reputation 0.5
8 U$ m) K+ |8 P. P) Eset neighbor-total 0
# H* W% |3 E( ^" `2 Z: Qset trade-times-total 03 a1 M `' R# T' @# {. {! M
set trade-money-total 0
* v1 p) L# F" R7 Pset customer nobody
4 a& [) y) h! Pset credibility-all n-values people [creat-credibility]
9 v8 {9 W+ g/ M+ q- Z, |) ?# Rset credibility n-values people [-1]2 r, M- n! I( M6 O. d5 q# c
get-color& p l0 F# h) \6 ~$ D4 m) q+ t
* M$ T" ?" ?7 P" |& j7 b! pend
( [/ u, I8 h0 Z w6 ]% T8 Z+ c' }* K; C, q
to-report creat-credibility) `1 J. N8 I: F e1 V8 ]6 s
report n-values people [0.5]7 X7 g8 C/ ~, `4 C& f
end
1 y$ K$ R |5 k" ?" p% q" s# Y% g: m
% X. I9 w- ?( I/ S9 Fto setup-plots, \1 e) W$ B K9 N8 Z
+ e/ }9 x! }: R7 ?4 Wset xmax 30$ Q/ N$ O$ Y7 Q* \
- w( d# s" o; g, [5 r! Nset ymax 1.0& b% ~6 T/ N' \3 F& [; @
4 }8 ^ Y4 M- H! p$ w1 i
clear-all-plots
& ?: I2 K f! X% ~7 i1 u/ ^: m4 A/ Z0 }; g
setup-plot1
3 p; X q q& P( e' @
6 X8 _1 z# E; @5 Z/ D$ vsetup-plot2
$ G% C8 C0 y0 W% f8 }/ }- W1 \1 n+ j7 A/ G
setup-plot3
" S' X; h% G9 f+ E1 n6 Uend9 |9 L' J9 G# y/ c" L
3 P+ G% P+ g8 E;;run time procedures
' Y, t9 `5 O2 v; y# z) N
. T8 T! m. ]! j. K2 Z) D) @% xto go9 p) ^% V3 I" U
% s1 F( c0 n. J4 a7 m0 F
ask turtles [do-business]* \; e' _, o$ n1 O
end% x2 g, Z. J0 d6 O2 K$ t
/ T2 h$ J* M& F1 G
to do-business
W" ?6 u6 a- f; Z) B% N: Q) W4 V
- }1 y4 U% C3 ?) s! \
* t2 o9 }: {1 N$ C: X$ mrt random 360
% K# m. M5 p& V1 @. J) c* Y. i P9 u, s2 a% Q+ N$ k1 m
fd 1
: L2 ~$ M3 ?4 M. {3 R, o- i( [+ w& T
ifelse(other turtles-here != nobody)[
4 k2 k7 {# r+ H; O8 U
; S3 _3 P$ e3 h$ H: S$ z( A, T- Pset customer one-of other turtles-here
% K; ?% {- E9 m6 y
: n1 `9 A7 G% [' O w+ L+ s;; set [customer] of customer myself
+ G/ B7 }7 Z4 A! q# ~/ k2 K; _* }7 |' M# v5 p2 Z
set [trade-record-one] of self item (([who] of customer) - 1)2 I- T I7 n2 t c
[trade-record-all]of self' Q, k& E2 M" B" [/ S; s: O: R; V
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. n3 q5 @; ]0 ^* R
^: v0 a( P8 O* Aset [trade-record-one] of customer item (([who] of self) - 1)/ L J# E, w2 _% Z3 E
[trade-record-all]of customer5 N/ X: Z+ g7 ~/ h" j* b% Z4 ~
7 c2 u' F. ^& `1 ~5 Wset [trade-record-one-len] of self length [trade-record-one] of self
. n+ k3 |/ F& M% g) _2 ^
# e; L- h$ Z/ aset trade-record-current( list (timer) (random money-upper-limit))
" G! z. \$ E" M! H* H. o _, L% Q% R. z, k9 I8 w
ask self [do-trust]
5 q0 v, w# z: ?( N# i0 s;;先求i对j的信任度
* j) E0 I& v) Z1 c. h- j
1 |2 Y/ y, S4 ~3 x! Pif ([trust-ok] of self)! t; G5 s L4 _6 C
;;根据i对j的信任度来决定是否与j进行交易[6 W& [; S' F) r2 v
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 a5 m' z) u, Q' m0 i
/ c+ Q* W$ V# I6 [ g; {[: z0 U; y! h! }
3 s6 m' U3 a5 _% A% L, B
do-trade" D$ Z9 k( A) U. o6 g
: N) G8 r% G$ k i& dupdate-credibility-ijl- ^* E, V% H A' Y* [
- u% u" ~* T$ l# s9 o
update-credibility-list( k3 N# n' x6 m( N
- j) V v5 i, V1 F) b. y
! `( |; @7 ^) |5 n8 K* Y9 n
update-global-reputation-list
* b4 G. t- N7 b; T' ^1 l
! n) F2 Q' x# n) a8 Epoll-class$ R6 [+ \) x% m0 E/ E# U( f. c
2 _) P2 S; a7 D0 }* m8 Z3 rget-color+ ]1 J: |9 U& N% }% e* K; ~
" q; k: \6 Y9 T+ V]]
% F4 v' @$ c/ a% E B+ b) t/ s/ ?
) h9 [: a. o* \( @1 G' m;;如果所得的信任度满足条件,则进行交易/ l, S1 {" V1 j5 o' M/ M) n0 v( i
8 U( [! \+ P( l4 v: x
[
0 Z7 m7 |& c( r. V A1 J$ G% B- J: s0 B2 ~- Q# _6 g
rt random 360
9 T, t+ k! J) r o9 I7 h
/ N2 t; d2 ^4 A: e2 G$ Ufd 10 b8 V1 m* P$ }1 ^$ c" b8 D
# c0 T( C% `+ D8 g$ P( K
]0 M8 _ G! h2 e7 g) C
0 y: |" f7 D1 K. d6 k q. E! z
end! T( e& t/ j5 G9 z7 Q( d' B
9 s$ b" [5 h; [' I
to do-trust
9 L! }/ G. K4 F1 y, Kset trust-ok False& X, V9 i) a/ _& c3 D* H
; n; t! k( \3 i1 \' c L& A+ m
- g5 V' m! x. Blet max-trade-times 0* G, i) h5 f$ d$ j
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% x3 i V$ E! n- v4 Rlet max-trade-money 0
2 N! c8 U6 X/ g+ w. x! q) Iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# v/ N% h' K3 x; C/ i) ^4 z3 P
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). V# L; _) I, J) `
& J+ l U/ I3 `3 B1 f) [' T1 Z# k( z% i; Z; [- c0 w( g
get-global-proportion6 n/ k% b. H( Z: x. f' i( S) q
let trust-value
! [- e7 K$ s$ G5 l( Y# K6 @local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); I, l0 d& Y8 D8 T
if(trust-value > trade-trust-value)
3 h. o3 w8 |4 c[set trust-ok true]; B. [* C# r' G: K/ L7 b
end9 b6 O! F5 R) [' w2 _" l: _
+ c# l$ X5 f% c6 m1 k
to get-global-proportion3 \) _. Q* s6 S' g
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! O$ N6 r2 A, v[set global-proportion 0]
/ L! ?0 d! U; N[let i 0
" H0 l4 _+ i( \let sum-money 05 |9 r x+ F9 I6 _
while[ i < people]3 i6 }% O. Q" T5 k1 z" G* H
[
) M* v6 X, }, F4 Sif( length (item i
/ l% N. |" q4 q6 x4 P[trade-record-all] of customer) > 3 )
/ W# t1 {$ ], S7 G[( v% a' Y$ ?- [ H
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 x$ h& I3 p. d2 p5 O' q+ ^
] h- d" ]. X$ F7 ?) C- J6 v4 T
]
! X2 N2 U+ \4 jlet j 0
: p3 l( q+ A+ V7 r' g; d) h2 b- y% [let note 0" R# d7 U6 W+ _, c' A3 |
while[ j < people]
9 z* u6 I: U/ \0 s$ s+ E8 z[7 @" n# |3 r. ?
if( length (item i" T# l: x. s3 j- _5 V. b
[trade-record-all] of customer) > 3 )3 w4 ? Y' ?: |' i' h6 m9 G, Q% J. D v
[
2 f) p* z% e, l0 wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! f3 D7 y+ A3 v/ F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
4 w! S2 `% | H: ?, q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' ], G9 W- N0 k]
& \- a' F) q" o]
* x. o% b5 n" ?3 Lset global-proportion note( {6 O0 p$ B1 W b* G6 y
]3 ~" Q7 Q& I' u( I3 V+ _
end
2 R9 h* Q/ a/ p% M; F# I- e9 F( ]' g
to do-trade
6 z4 X. z3 F o" @0 |. A1 M;;这个过程实际上是给双方作出评价的过程
4 Z8 S" d8 j. E2 P! J* |) jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 p3 Y. B# A9 [- N6 x8 I9 k" x1 Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 M7 }, f7 _) E4 |4 \
set trade-record-current lput(timer) trade-record-current; A: |, I2 n# G: U. }4 ]; D
;;评价时间
4 V9 G1 Q2 A, Zask myself [* H' M8 {& U$ |% ^! J' t
update-local-reputation% Z3 M$ q4 Q0 @3 I+ q6 M) d8 y
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ J7 V# ~: U. W" ^- Q]* e3 w5 V2 e9 X) q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" j' e a2 R8 G: o
;;将此次交易的记录加入到trade-record-one中
- m) U# J: s2 G c9 v& w' q& qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 V O) p- r6 y- n+ S" {
let note (item 2 trade-record-current )( D$ D/ k h9 F3 w
set trade-record-current
% C1 ^ g% v' r(replace-item 2 trade-record-current (item 3 trade-record-current))
) ~! a' b$ s) m1 xset trade-record-current
, ^5 W3 X' [5 L, H(replace-item 3 trade-record-current note); j2 [4 R# B z1 ^) Y3 Y, U
' N& z6 e6 W& z6 C0 p8 |( v7 F
9 M$ v" l8 }! V! @8 ^' |' [) S2 \ask customer [
q5 @9 {( c, d1 m3 Z7 ^7 iupdate-local-reputation' X _& e! Y# k# j
set trade-record-current
* D9 r) x1 T- Y' o# u; [$ G3 ?/ K(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. L! ^* j5 U& [3 }- i$ K: ^( _3 R]5 _) \ E, Q7 T( I6 u" R4 a
1 H9 |5 E3 `- H3 H% ^* m8 L7 l, f
8 v2 ^* b; M( E/ Aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" n1 Z: }& `! u
* e9 g0 r% R5 e$ R9 q, E# Zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), T7 d- ~/ V4 ^
;;将此次交易的记录加入到customer的trade-record-all中5 r9 ^% }/ F6 s0 [7 G Z
end
8 P. B5 v/ B$ F6 d' }3 C0 j3 o, U4 W" d5 W
to update-local-reputation
! {- g7 G9 S- Z, Y) J' cset [trade-record-one-len] of myself length [trade-record-one] of myself8 k0 q8 L* f* f# l% ~7 ?7 s* z
" ~+ t1 j( g. C! I" v2 N2 ]4 x" Z1 l( ?5 x1 q! t; O. u) K
;;if [trade-record-one-len] of myself > 3
) X" g K: F, | Q: D7 Kupdate-neighbor-total
" {" C' x1 \% a2 u/ k! e* y+ _;;更新邻居节点的数目,在此进行
( E' r; s' H1 }* ^let i 3
0 s% | ?2 C8 i: u t- Elet sum-time 0
" F7 ^; d+ h/ v2 U% a' Zwhile[i < [trade-record-one-len] of myself]# U* n+ z; P7 k, N5 ]7 |' ~9 W! l) D
[
1 `# {; R0 z9 K. Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 ]" l+ Q: F+ rset i
! S$ i+ R: e+ z! M- v( i + 1): v$ [5 u9 b4 Y/ |
]
/ d! P, g( z/ }7 F, E- ulet j 3
* m" f* v$ ?6 M9 g8 r" @+ g) Ilet sum-money 0
2 c" U, l8 q/ U: X) Ywhile[j < [trade-record-one-len] of myself]
, n* U3 z, }0 C[2 ~' c- f! L+ f }" u9 w
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)
^2 q; O+ R0 R/ W. y) \* Bset j
; x& W# F R& \- v5 j( j + 1)
- ~) S+ K* T( a) X3 u" M]
7 p1 |, k" x* @; Mlet k 3
2 {+ s4 J9 v( c" `# Q, }: Blet power 0; {) o0 v8 [) e$ @
let local 0
, B, w N0 A8 E% K* r& }) Fwhile [k <[trade-record-one-len] of myself]) N: A# N( E5 X8 p" o' O
[
; ~6 b$ m8 e) w# @7 g5 T t! g- j 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( G& O; f0 `0 a
set k (k + 1), B9 N( y Y& ?6 o7 p2 n( i$ [1 m
]
" R2 T4 i; h3 eset [local-reputation] of myself (local)0 o* G% d0 N! g, C7 |3 @
end
( N* ?9 n; f* }; U
! Y* e; V# }8 r, s$ b- n8 Hto update-neighbor-total
& j# O) ]6 y) \6 P- k0 n9 E/ z! M
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, i% O! d( o3 e6 n i
$ l9 ~5 {' M; e6 w% x3 `) t5 B/ P! K; A- J2 Z
end
8 @5 r" e; a8 ^2 v8 G
4 k- S, _, k$ X( @. D7 B0 z( Vto update-credibility-ijl
& b0 i* O' w/ j5 V r8 Y$ d: m# }2 e% J, X
;;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。
/ l/ q& y% R' r7 l7 g$ @. Qlet l 0
* L9 U5 J( s- t2 w- ewhile[ l < people ]
0 J5 w! d+ d. [;;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0 o D7 V4 _. v j+ D3 M, }
[% L5 y% Z. v8 `; h( |) q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ b7 i* K$ j$ [7 u
if (trade-record-one-j-l-len > 3)% I/ O- ?0 Y7 n2 G; ~+ r
[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-one5 h" W$ q2 P2 J2 v) C
let i 3
7 `/ f# U+ r9 vlet sum-time 0
6 r% Y) A- M- O( d4 q( ]while[i < trade-record-one-len]; e# t3 b$ ^, H2 ~: i2 q( o0 x
[1 _( N8 J5 o6 l
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 v) o: o w7 y4 V: X' `set i- \( b2 n" `% v0 N6 u a H
( i + 1)& J5 h; G# s& E1 G4 K- p
]' n+ E' `+ [& F0 Y, c
let credibility-i-j-l 0
2 K: v* [( e9 S+ p;;i评价(j对jl的评价)/ v& d; x, S. O/ {7 E# w
let j 3/ h# v- D; G2 a
let k 4
0 I9 g" C$ u8 `) |while[j < trade-record-one-len]
/ W. H$ K# Y7 A' A[
$ q) V' N' G& n6 j" s) R9 B) Zwhile [((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
8 t+ `" }$ \" E4 W0 _+ n) Nset 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)4 O6 Y7 e5 l9 l$ l- K
set j
K' x, B6 E6 j) ?( j + 1)
9 ^" n- P4 w: C& b* ~' N]0 P+ p1 c5 ~# y; A9 H! C- x1 S( p
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 ))
, r$ r2 @6 w7 b7 _! j+ w( j# W7 `+ `6 V: R
9 M3 ^3 D* @0 @% Z2 H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 b3 Z" v3 h3 ]; B1 D
;;及时更新i对l的评价质量的评价
; P0 W5 G! ]. ]/ ?7 l$ r& m0 |; H' Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: n; j# M- U$ y1 A$ wset l (l + 1)
7 `0 D9 N7 |2 K" N$ q- B], A0 F: l, G5 s7 {) w/ r" o$ C
end
/ s/ ^+ Z6 D* k+ J' Y" k% ?& d1 r3 N. [9 m9 [, q6 Y! c( a/ p+ y$ O
to update-credibility-list
( N* W! a D$ d# q, Nlet i 0
( _" x, G' P# l) l* l7 |while[i < people] C0 t+ \6 }/ J
[
' h& G. R4 J, V/ V* ]) d( mlet j 0$ X) C/ _* Y0 l* V7 k. A" X7 C$ ~
let note 0# p: |/ e, @, ]5 z4 ~
let k 00 y% O; O7 y5 k& Y. r" h& G
;;计作出过评价的邻居节点的数目
+ f. Y; A% w3 ~& Z2 \* ]! f. Wwhile[j < people]
/ P t1 m( k; y' m( G[6 v# C5 } K! z4 @5 a* Q
if (item j( [credibility] of turtle (i + 1)) != -1)5 h9 `% t# n3 m7 U! P% ]6 A+ [
;;判断是否给本turtle的评价质量做出过评价的节点
6 F, {1 s: P: ~[set note (note + item j ([credibility]of turtle (i + 1)))+ k/ r# {: j- t, U0 C3 m% ]
;;*(exp (-(people - 2)))/(people - 2))]
- M' M% L( T: c: z/ Yset k (k + 1)
+ D2 U# d# u% n) E]
' i- P' I; v& y# j) ?set j (j + 1)% T) d/ G! ~( y4 _
]2 M* Z7 I5 R& d# E: ]6 O
set note (note *(exp (- (1 / k)))/ k)
3 U# \' b" {" d' {/ `2 L3 Bset credibility-list (replace-item i credibility-list note)
2 u! i# ~( ]* \" x* ~! V( |set i (i + 1)
- w1 K. Q0 ^/ o]
/ `, A6 A* ]9 A X3 Hend
& ^) V$ I; F8 Q2 W, ]/ I7 |7 N" }8 I# G- w1 A" S9 s Y" t
to update-global-reputation-list6 b6 P' ]) y* ]
let j 0
2 i" p, t u! [) [5 awhile[j < people]$ L' q `' J8 r2 |
[4 U2 G# Y6 E" @- H: F# P) M9 \) Q
let new 03 m5 l6 W. Q, N$ ^- x# m+ c1 V) z
;;暂存新的一个全局声誉- O5 \5 F. r2 B* G' M
let i 0+ p6 n1 ?5 S0 |, ]; `, j
let sum-money 0
( @' H1 X2 d0 ^" jlet credibility-money 0
! J5 z4 Z- K+ r. C8 S' nwhile [i < people]
, [& o. o4 b3 ^. O2 j" \[
$ U4 \# R) o( G9 \4 l% cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% e. `$ `. D# v' I+ yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( g# U/ ~5 b4 f9 m
set i (i + 1)
' A8 J, M* R. X+ M] w6 |! V, d) v4 b3 T6 b
let k 0: o& F# k! ]+ d
let new1 0
; _+ F+ ?4 w. ?4 O2 X: F# K) hwhile [k < people]
: ~* @8 _2 b* k[
7 u5 C- `% O J7 t9 x4 sset 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)) | M1 C( O5 [
set k (k + 1)
. x" \3 B# ?* D$ V8 F7 l]" a8 u: @! o+ _+ w
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ E) }8 P( c/ n, x- F; }+ mset global-reputation-list (replace-item j global-reputation-list new)
* P1 ?4 G# K2 N0 Qset j (j + 1)8 q: V6 Q+ d! `8 e
]
. ] _. F0 \5 s3 d2 a1 R6 w' V6 Lend3 y3 N. g) _! H8 r. w7 U
$ r# V$ _* C2 \ r, N' Q& |" W( s$ [- b3 s9 \0 l
! w# \ W) o4 O1 p$ I$ o! r
to get-color( `' L7 Q6 R+ e3 c# A5 n2 [
6 u9 D i3 `# f6 A3 o
set color blue; L4 K+ [+ q) Q- L2 ]3 W
end
. q" k" y0 n1 x, ?, V8 J% c; B8 s7 p' P& B
to poll-class2 t! g7 c3 y8 |% W/ @% g9 P
end3 G% E+ ~; x6 s( I
3 H9 K! L; K1 [% Z& N/ M4 I$ Sto setup-plot1
" N6 z- y. Y+ R: L3 N
2 [( a+ x. ?3 g$ S/ jset-current-plot "Trends-of-Local-reputation"
* \3 k5 ^3 D' {* j
1 L$ h. {: r( d) ^+ r, Mset-plot-x-range 0 xmax. l0 B( |/ j% O4 l1 g1 z
* N7 x, J2 \3 ]9 wset-plot-y-range 0.0 ymax+ y$ j6 n8 {1 H( i8 U# f) O
end; i- f2 f4 u$ v5 U
) S1 w& H# {4 q/ e% Vto setup-plot2* E3 }' _5 w& v, b U t
. Z0 q2 P. j. Z3 Z- Xset-current-plot "Trends-of-global-reputation"* l( v; ?; k" ]2 r
( m8 g/ Z, F3 z) T9 l8 X( J
set-plot-x-range 0 xmax4 B. q: f1 C$ V' Q/ U, b" W
" A+ [/ F6 k& q' ~% E, y
set-plot-y-range 0.0 ymax
2 w/ o6 ^# C7 w3 ^, X+ Eend
7 C: U: F# L7 F* S
/ \3 D+ h* S S+ a/ Y7 o8 ito setup-plot3- H# q! h, @7 O7 ^
[' |* B$ }6 Uset-current-plot "Trends-of-credibility"
$ b) j% ?% J: e9 t! G Y+ k- x1 b6 N
set-plot-x-range 0 xmax6 i! @* O* ?' X3 i- a7 ]
8 D9 e: w' R0 o+ z( E1 Fset-plot-y-range 0.0 ymax
7 j3 D) T! R. K- l' t' M+ Oend
* Y) f% f$ Q: a! `. R+ |8 }: A% D% o: I$ I( @
to do-plots0 D7 T% f$ r; S0 R- {
set-current-plot "Trends-of-Local-reputation"% p, N# ^- P4 l# E& r" q
set-current-plot-pen "Honest service"
+ ~2 R/ ]' K0 L6 u# G) dend
j4 b) n' _. m; N) n8 n# R; \
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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