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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
1 C; N# v. e# d( hglobals[
$ I4 f5 y# v: [- A- v+ gxmax
3 H5 ] h# d5 K- I2 ~. cymax* }# n) ]) @1 n" M3 H
global-reputation-list! ]. U; \% \1 e8 Q9 Y
/ P' S+ k* r2 {/ w8 e;;每一个turtle的全局声誉都存在此LIST中/ }2 z9 E5 u5 x6 \* w
credibility-list* Z% [5 c- g( S' j. z
;;每一个turtle的评价可信度
) f( J5 \; f' z, ehonest-service
" y& i# g& x, F: Lunhonest-service
( H* j$ J5 c3 g6 y( _2 boscillation4 z7 B9 O7 f* ^4 X8 x+ Z
rand-dynamic
( `0 I/ q8 \( ] E4 r]4 x: e5 j; ~0 @) E) I4 P
3 \3 [) `, n- h! Y; j3 bturtles-own[, ~# T0 q' H$ G8 ?9 W$ w* l, ^
trade-record-all! Q0 o7 w" R% G l/ Y/ i
;;a list of lists,由trade-record-one组成9 E; h N% F- i) M5 a
trade-record-one
' A5 r2 W: j& w1 a6 b* R% t;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" Z7 |1 d/ A3 a8 I1 N4 E" B4 ]4 ?, W/ s4 D% Y! k6 U
;;[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]]
! k! y% F% I5 i" t+ C. n: atrade-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]
6 s6 u$ b; a* f m! y, I) E1 z( Pcredibility-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
, K6 }8 U/ S8 j3 Nneighbor-total; ^2 m5 M6 L1 A! ^
;;记录该turtle的邻居节点的数目
, C3 l8 [- F% I0 ptrade-time
5 Q Z b: b# G8 p: ]- B& k;;当前发生交易的turtle的交易时间" W+ P' E! R% r; E1 g; }5 |
appraise-give- P) o g; O! {7 V, y
;;当前发生交易时给出的评价
7 s5 a* b! K5 E# I/ K2 oappraise-receive+ K, e( K3 r" n0 ?% O" Y2 [0 Q
;;当前发生交易时收到的评价
( S6 r3 a& P( {% x( \appraise-time' n6 g7 f& A% m- u( G( R/ s% C
;;当前发生交易时的评价时间
6 z. l* t% ~3 k) a) I3 z! k- {local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) D( \! }: n* y4 n [trade-times-total
4 C. P# `2 c. }+ u+ w;;与当前turtle的交易总次数' h. X4 _' E+ P6 R( p+ }% q5 X7 W
trade-money-total
( `* W4 M1 e8 R: B6 n;;与当前turtle的交易总金额
3 Z1 a1 {, ~ V# O" H( N' `2 Ylocal-reputation, u6 h r m* I' P5 V, M: N
global-reputation
, R- f+ s! m& Q. V2 d( ucredibility
6 a* Y3 i, |5 t2 ];;评价可信度,每次交易后都需要更新
9 T9 R2 L( C2 W; S9 ecredibility-all! n5 ]! H5 }! ?
;;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 @% V# J; Y1 y/ C1 N% R" D! T9 v _% r% D! O/ p
;;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; S& l! i9 Y i: j; Z
credibility-one
" u' P; ?0 Q) S6 E;;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& Q! r9 u9 u8 B2 o! ~5 D
global-proportion
4 F; x! ^. K, _* f0 \: Scustomer
# q/ P, m' |1 b) N0 a8 s6 E6 Mcustomer-no
8 V/ [) e6 S, b" w9 | n$ wtrust-ok" n9 W/ d6 ?: i! G" G
trade-record-one-len;;trade-record-one的长度
+ \* ^: H0 s5 t3 q]- `4 P7 t* H. u" _* \: q
9 d0 ~2 M4 j2 p5 I5 o/ K9 y;;setup procedure
f# y& r1 t' g1 A/ P" ^8 m6 u9 f9 R- F9 Z3 i$ @" e( V# `
to setup
% {0 o' j9 G6 C" d9 G/ C: z# C% z' R6 E" {+ @
ca
; [) [' v5 j3 S4 y; K4 G% `, Z1 ?) G' p
initialize-settings
& @5 D7 p u$ j( q; j1 `
8 t8 }+ |5 Q# u& wcrt people [setup-turtles]
0 h0 a- l3 P, a/ d9 ^% H% d' x4 q. V
! W/ W: T# g( F6 X% treset-timer+ j9 o. k( Z2 g
7 ^3 t. F. s2 T
poll-class* M$ n" D# ~4 l% z. c
3 Z" ^. x" X2 p" }& ?. W( r" m
setup-plots5 O w6 j# G5 r/ e& z5 J
, Z# Q2 h5 }( `; W/ O" p1 u8 xdo-plots1 i0 C- k! n/ }/ d! r( F$ |/ H; X
end3 o; Y- F4 } |% P( |: s
( z0 a4 K! v; ato initialize-settings
p! z/ l( B4 J
7 X2 z& |0 N; }set global-reputation-list []
7 h* q' `& N7 F! U/ Z/ D& v
6 r1 F: ]/ [( nset credibility-list n-values people [0.5]8 D* w* R! E- b0 D7 y3 Y! P
; ~1 h, P% i/ c- I" Rset honest-service 04 t0 ]7 ^1 d; |( }
4 F/ |3 j5 P, @! N* N- k _* r1 [
set unhonest-service 02 c& X: k1 r, h$ W, ]# P0 t
1 ^- d- b9 l& K" r4 K3 e0 [set oscillation 0
/ _% E, y3 h6 P# I; O3 V0 n D3 l, x5 \/ H$ v, R
set rand-dynamic 0 z4 u0 C. }3 F! F W
end
: V) y& b, h; Q; U3 m
! ~# s# T" n) R5 P& `: C/ {to setup-turtles + ]0 Z( N+ @2 N
set shape "person"
' X4 m/ y! t; f ~- j. s) |! E- [4 rsetxy random-xcor random-ycor: h8 v$ Z+ F) A" `/ I+ U
set trade-record-one []
- K6 z7 w9 k: X% p, K. C7 x8 O* F& q) e
set trade-record-all n-values people [(list (? + 1) 0 0)]
& E) X8 C' F% x8 ?* w1 P( A4 L% c4 Q0 x: z8 Y
set trade-record-current []1 i2 k9 S+ d/ A
set credibility-receive []
, R: U/ }6 R% J; W$ \set local-reputation 0.5: b. }+ T/ ]% G5 c4 N1 W
set neighbor-total 0
! x1 H6 N* `0 R, ~, gset trade-times-total 0
6 D7 }' q0 A; j0 T9 K- gset trade-money-total 0
/ ^$ S; j( D) Q0 w3 q6 p0 Fset customer nobody
' Y- p$ b1 N% k# V5 v" iset credibility-all n-values people [creat-credibility]/ B' E! d7 b9 N7 c& b
set credibility n-values people [-1]
+ A4 T/ s5 v9 F+ W* @! Q+ qget-color1 v9 p2 p* n5 k; B6 e$ N6 i
% p$ H6 k8 |$ j, r
end
& \! I- |4 w, ^; s& f4 B C7 H/ t& k4 D' L; ~. v* M* ^
to-report creat-credibility Q( r9 M X# A+ y: R' X
report n-values people [0.5]9 I% s2 `' Z z3 E2 j: Y& c1 T
end
A( L! l- m% x* _( |2 g
" t: ]: v, e* o oto setup-plots5 x9 Q; M8 M" w; f) O
5 L) N5 a3 I* }) g8 jset xmax 30) u& p* M- b- n+ U. Q) m; j
2 _$ l: K( b+ e1 k1 g) p
set ymax 1.0, @! O# M4 ]2 K+ ?# j# X8 @
8 v9 n6 A7 N4 G1 o' F1 wclear-all-plots9 s& E( n% f7 v
C1 [* O# s+ dsetup-plot1
5 d* t" F0 {" o* X7 a2 d$ y7 O4 e, b# D
setup-plot2* r. a8 B& d# ?# m. Q9 e8 o, M
# l" U( j+ X* K7 ^5 z0 P' p$ Tsetup-plot36 U- t8 J8 u1 ?/ }8 j
end1 g0 J7 y% w' u' P' x3 V2 L! w, r3 b) j
5 n L9 O2 J8 o C2 p: `" l
;;run time procedures
, M- m5 | I. T: K5 R$ x
. N" C5 w$ q3 c: r3 z. g0 vto go3 n# G3 A8 q/ n) n
+ t0 v0 D: `6 D( T
ask turtles [do-business]7 Q; }: H+ E" f- _) p2 d/ @: c
end+ F/ `" n; q4 D6 M: Z6 e
1 N6 k1 z- F* p$ x" y
to do-business
9 x; ~/ W: H5 f8 X" v
7 U9 O6 r; E% m% X5 {2 l* m% u6 ~1 O/ w% @
rt random 3601 k. x9 o$ _# F$ |4 N
# j, Q$ m7 p& `3 u
fd 1' T6 q# v8 e" N& T, L }; t
& D; h6 D5 [6 L L9 N7 v5 L: }ifelse(other turtles-here != nobody)[
4 B4 J2 s! t7 R7 N8 t
+ n3 j1 K) g# r' Y. hset customer one-of other turtles-here
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;; set [customer] of customer myself
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. X0 d% x2 y; r* N! R. oset [trade-record-one] of self item (([who] of customer) - 1)" H1 G' I, s. E* G2 s" G
[trade-record-all]of self1 L- B9 g$ h ]; M% Q+ r" p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ F, Y9 h& C+ q$ _' d/ Z9 u0 s/ L4 o
set [trade-record-one] of customer item (([who] of self) - 1)
9 L* w& |! y6 X M/ V0 w2 n) J: {[trade-record-all]of customer
/ p4 D9 O9 l# j }0 s0 y% H, f! ^* W: J4 o2 F$ ?
set [trade-record-one-len] of self length [trade-record-one] of self
: v. }% Y; n, t! ]0 ^1 L' y9 H* b p
' R: g# Q, X1 u: @; n( Xset trade-record-current( list (timer) (random money-upper-limit))+ X# a- i* O+ f
$ o# V! K; w1 U1 C$ S' fask self [do-trust]
4 M. a! {' H1 }8 q;;先求i对j的信任度8 t& m9 }; g+ U
& X4 R9 z; k5 Z$ j3 E, N
if ([trust-ok] of self)6 t+ n, E4 m5 k4 h' s/ U1 `
;;根据i对j的信任度来决定是否与j进行交易[
0 p& b c: n+ U: X* m" mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
5 ]8 s; m$ f+ y+ ~( ~. y$ f! g5 C3 ~8 {) d3 s$ N4 p3 G
[
9 C! S3 y' f; n
. ]; z; s. j4 @$ V& \# W0 ^- [& Gdo-trade
6 w0 L1 X" f/ ~, A" _8 {( l
- o( c, b! _% e, fupdate-credibility-ijl
, s% J/ l" _; t; O; }
9 s# I1 w1 {" c' F# E) a7 ~update-credibility-list
) f y- S$ F F% _7 G y, W* z' V* V- \
0 K% I! F( o! X Hupdate-global-reputation-list4 n& |/ }8 {- W0 e
3 X4 W+ c, x. A( `poll-class
8 k$ n5 Q3 \& M9 @3 L) h
, n# p) X3 P2 g0 y) t6 iget-color
& ?+ w# ^- L. k k' t0 m' e6 R6 w4 x/ N
]]
' v# s" f( ^* Z/ @1 M& s
; S7 Z& @$ {, X/ V0 \- f;;如果所得的信任度满足条件,则进行交易0 Y! o4 J/ x- }# z0 c
; ~6 [$ C; D1 l- y3 L$ t4 R+ C4 u[
5 I9 \0 l0 O, U, V& o/ \( I/ N. _2 X9 e8 k9 {4 u
rt random 360) H" U& `* K6 q5 N0 @- e
2 e: _* {; C# S: j! d J) {; A/ tfd 1
- @8 E, A$ e0 M. f7 Q6 g# e# R8 b9 M2 C/ x. A) p" I8 x, q4 }
]
' s& `& j! @# O/ o# x+ E2 A) ~' I- _3 E# N: ^7 G. K- ~& J0 l
end. r) b- y, c' k6 X# t8 E( L5 v7 S6 q
, R8 ^3 s) b* _+ N4 q1 m2 Zto do-trust 8 `" b5 y8 F4 m
set trust-ok False
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" K+ Y) `$ u- F5 u" D# \6 b
let max-trade-times 0: S0 C: V3 k" h8 I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' g/ s4 a @, |& o6 Z8 L/ klet max-trade-money 0 Y. J% H. F# i! l7 \) e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! V& t" `$ ]( W: y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( c9 b5 f: i4 }3 X" c k/ l) p6 g$ T& V5 R+ j% Y
5 L8 S2 u5 Y/ h- D
get-global-proportion. O S8 u- ~2 c t2 L
let trust-value
! x3 K) o3 I( K9 olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) p! n. ]7 Q4 m4 O2 h; Vif(trust-value > trade-trust-value), r4 ^2 z: p+ M$ W; N0 O- u# z
[set trust-ok true]
# C5 @/ w- B4 B9 oend
1 H S3 s2 S+ E' M4 x. [$ f4 L
( T1 l9 s! f# B7 Z6 Y- W6 h* V% F2 h0 Gto get-global-proportion: q! T* M: u" {4 N) o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! @& W% W: ^+ v( i1 ^& d[set global-proportion 0]" o! i& c+ @: a& f+ G
[let i 01 ~8 ?# s5 _4 e2 G B2 \% G. }+ Z# d8 p
let sum-money 09 |" l4 f h2 e4 {8 a7 o$ k
while[ i < people]9 K1 Q. b+ F+ ?, o1 T3 w d
[( P' _: A: X0 r h& b0 O
if( length (item i
0 Q1 E$ b6 x( b[trade-record-all] of customer) > 3 )$ m! m7 j. E# i5 q
[6 l5 t' g [0 j: ?4 L
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))( F! U. T0 T2 Q) T: A
]
* H' u0 k# R+ k% N7 j], J [( J8 E8 q* ]4 O/ y' G
let j 0. G8 N0 Z5 A. k N: X6 f
let note 0
6 U/ w. l9 n( u% j Ywhile[ j < people]
/ ?0 f' i B' E[
( `- N" Y$ b8 l# j# ^if( length (item i; Q/ A& f- M+ N" o2 M
[trade-record-all] of customer) > 3 )& E( u5 u% P2 a8 f. z
[' S; c0 n: D9 H1 v; F" c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ \# {8 L$ g2 U1 L, Q5 t) c1 u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' e# N$ [; d; C9 r0 p
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; }& T" U5 O1 K+ B# A8 `]7 ~/ ]7 Y3 F0 }2 W: R
] Q" x9 b) S: J
set global-proportion note* ~( K* x0 ~. A6 w8 T0 u+ P
]
" _3 H! T- r' @+ Q$ V, xend; N' B' g( b( { X
+ C2 f$ H! e% A" z3 d# w- Dto do-trade, G m. u2 f/ `+ O3 Y, U: Z
;;这个过程实际上是给双方作出评价的过程
8 d6 b; c$ l1 V/ kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 G3 ~' O# W& \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& }# x7 Y0 @: r" r& `3 [) x
set trade-record-current lput(timer) trade-record-current
8 m3 _$ \7 k& {+ ?: V# b$ \;;评价时间
! ?- `8 a/ U' \& J( [ask myself [$ [0 K. Y0 L' Z: T% h
update-local-reputation
( L6 b4 e6 o2 Yset trade-record-current lput([local-reputation] of myself) trade-record-current
$ R4 M4 W; x2 H2 F6 M]
F& x/ s2 b9 k+ Kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 V( v9 [7 w+ F( A: c
;;将此次交易的记录加入到trade-record-one中
9 B9 n4 | k- H7 z/ Kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 Z& y) B( [" T7 @4 M" D0 vlet note (item 2 trade-record-current )
7 ]& y7 F1 y$ C! H7 W8 E& h: xset trade-record-current
. A- Q! k7 T& T' E. U/ w0 Z(replace-item 2 trade-record-current (item 3 trade-record-current))" a$ H1 ~& r& }( ~
set trade-record-current+ ]3 P, L. }3 c. G% R
(replace-item 3 trade-record-current note)
: m5 I7 L3 V% @9 p
3 K( G1 H9 |. A. n( d: ~7 J, K4 l H, c5 b+ h+ x! o
ask customer [
( ]( e) M1 L8 X. O pupdate-local-reputation/ {* d( G' l* F. ?5 F; s
set trade-record-current
: r0 B3 E9 ^3 o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * ?) i; d5 X d0 O5 C" p) f
]$ U2 S/ o& {/ b: A7 n, y
0 r t9 Q* s, o+ L/ H2 c& z
: `2 s& u, a& Y! f5 H9 H8 ]" A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ W' F/ K( M$ \/ H! a' w
( w7 J7 ~4 u0 l8 P* B2 H& Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 i7 v4 \ R3 ~$ s
;;将此次交易的记录加入到customer的trade-record-all中
5 c- `/ l$ r8 F6 E" Y( Y* ?8 H9 bend
4 M" Y' s' ?" t! r- e3 g F" i+ l4 a$ V
to update-local-reputation% b6 y* o! f) b e
set [trade-record-one-len] of myself length [trade-record-one] of myself1 N/ R- N, o5 g# ~) L2 M* x( Q
1 k, T6 o- Z/ x+ g$ q, g3 P7 F
% O: ^: }" Z, ? H. u8 p
;;if [trade-record-one-len] of myself > 3
2 V+ A6 V5 o6 d# _' q; Zupdate-neighbor-total3 P& I2 ^9 r6 _' I2 d2 t
;;更新邻居节点的数目,在此进行" B) `+ y5 W* R+ {, I
let i 3
$ [9 C0 ^+ k" `* ?# r7 o0 blet sum-time 0
7 J# [' w% Y( H+ c3 j3 b. Fwhile[i < [trade-record-one-len] of myself]
# M: y$ q, d! h+ ]2 }[ c* s* M2 K: @1 F2 B z2 v2 k) X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 f' x2 z4 C5 @; L6 [. m
set i! V+ }. C+ E. q3 K
( i + 1)9 ^% C$ Z5 x( H9 s- {0 |
]
9 r2 x6 b' b( R; m! u9 clet j 3
/ c7 J, ~ N3 Q" Y7 W0 Q: Elet sum-money 0/ F x; X3 E( s3 h4 M7 G
while[j < [trade-record-one-len] of myself]) M5 R! C% ]& ~& I5 N$ @: `7 c& V
[
$ p" N8 q5 S/ X$ e& L9 mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) g9 B4 _9 C/ w/ mset j
# N: k. t3 I# v( j + 1)5 v* V) \) \9 t, L* u
]; b) ^" B: w9 \7 c. c
let k 3
$ ^+ s3 i( F" C$ U: ulet power 0
( S& W( q2 K6 j- Olet local 0
0 }- `. Z& m/ c8 Nwhile [k <[trade-record-one-len] of myself]
9 c0 \! ?! l0 U1 X h[" F7 ]4 z w/ `! v! e/ X& E. }; r
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) 2 U6 z1 N1 U- @2 A9 I
set k (k + 1)/ s, A2 C3 I/ z1 S/ s: l4 w
]
' M, B V8 h+ p( [/ j- [set [local-reputation] of myself (local)% j/ u7 W F0 j
end& |* _6 x7 N3 @; ?6 D
4 H5 U5 l, G" B. d9 v
to update-neighbor-total( r& L) |4 W8 t: Q" X; R
9 w* ~4 Y) d; B+ I( m0 p9 ~# fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ o2 o& J3 g! k- V2 P- G
9 H. U: M8 A0 {2 r. M2 V$ B: j% f( F
end
2 g/ c: T" }# ~+ U6 ~: @
- c5 O- ]: x- M7 ~to update-credibility-ijl
$ w7 l4 }* j/ ~; z& f9 Z. f6 |! ^! k
;;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。5 `9 A' D! {( y; s6 ]1 s
let l 0
2 o, z; j7 ?$ hwhile[ l < people ]% p3 ~* Z! ?! I+ Y: P9 s
;;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2 n+ l+ r, h" ~( X Y; |
[' {& Y! r( d7 J4 m, v2 E; k
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 q1 M% e2 H: ]if (trade-record-one-j-l-len > 3), ?) y# I1 o; D- `, s( r2 C. M
[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-one0 g6 b n/ \& h" H9 R
let i 3' M( z( E9 k( j4 x2 P# R+ ~
let sum-time 02 s. ]$ C7 A' V* a8 W+ ~4 P
while[i < trade-record-one-len]
% x7 x# u% w1 I# o2 D \1 r9 K; t; {[
( C. F6 B4 z1 Z+ l( P! G" D0 Uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 t8 Z$ W' ?. `* Bset i; ~; t/ e2 ]2 I/ C5 Q7 N
( i + 1)
/ ^" _3 |* A# D]
6 K4 }) i: g7 I. W8 m) Jlet credibility-i-j-l 0
. }: t( N( \8 N" U* u- \' `;;i评价(j对jl的评价)/ m; V" g% f- B. D
let j 3
& n9 D; e! z. \. B% k8 c& ylet k 4
6 Z/ T5 s _9 @while[j < trade-record-one-len]
/ A! i2 m& [. v- n0 v[
, d4 t, p. Q! F# G* qwhile [((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
6 t' }7 W& [* m: j1 {. u* s" c* x, g$ mset 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); N2 K) R9 o2 z( c( O7 a) O1 E0 r. G
set j$ m) @% D% U. q6 e7 x
( j + 1)
5 N6 z7 D. F6 v. @/ Y$ L: X]
, V& |. H7 R6 @- K8 hset [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 ))& V# n+ e' d8 I
1 J$ A' f: ]" m! l0 Z! x) A% ?4 l
3 m8 b, y" ]3 k6 [. u0 T
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 M* N, G! e. D
;;及时更新i对l的评价质量的评价
( G/ n6 K3 O, ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 c$ R, Q* E( L- C% sset l (l + 1)6 V/ V% W( @1 q: L
]
) {# J/ v' o! d$ V4 ]* d) u& zend: u1 r8 b Q& x- |
; l# Y" }; K: c4 I; b7 V
to update-credibility-list8 l) [# ^" A. L
let i 0
3 t" K5 K8 F( C# i9 kwhile[i < people]
4 k4 E. g5 `0 A# D6 N[
' d. @" e$ L2 G: k& Glet j 0' \ _) @! q0 y A+ a: S. B0 M
let note 0
8 o" u) S5 T) t2 F- B5 alet k 0
- D% u. C U' P. s/ b$ K* W;;计作出过评价的邻居节点的数目
( j% E1 I' [+ w; `6 q- `8 vwhile[j < people]9 f- K7 S) c' A
[
M1 z G+ T: ]& s1 Vif (item j( [credibility] of turtle (i + 1)) != -1)
" A; v% B0 D+ C0 @( x. g+ u;;判断是否给本turtle的评价质量做出过评价的节点
; u3 B7 c! @+ t2 t[set note (note + item j ([credibility]of turtle (i + 1)))
! m" K* f6 [- ]: m4 q;;*(exp (-(people - 2)))/(people - 2))]& W, f$ @3 v- k0 f# k5 y( D( \
set k (k + 1)
7 Y9 x' ]4 `1 b1 @6 |1 A. I]
5 ?2 A, |7 V2 q; u+ S$ Fset j (j + 1)! ~% Z/ @ x$ n4 `
]
$ v3 X( j3 e" H. L7 B/ P" `set note (note *(exp (- (1 / k)))/ k); h) B' o# m/ m% f0 U. k
set credibility-list (replace-item i credibility-list note)5 v z' P# U. R
set i (i + 1): ^& C4 o9 I' ^
]
& A9 v2 [: P% v% g) ]end/ U$ v3 t4 [6 d9 I+ q" ?
# F1 g. _! K7 K3 }' v1 ^( z* C& C! i
to update-global-reputation-list% b b% p7 J9 E' A2 w& y
let j 0, i# g0 g3 Y# y
while[j < people]
/ G6 g: z! o4 N+ S# g[6 I& b+ W7 J1 |
let new 0
% p4 n" c( l( z# s# d- Y;;暂存新的一个全局声誉; R6 Q5 v: g# z+ C2 u! B
let i 0
2 ?/ y7 _$ U) B" B I. _& jlet sum-money 0 m9 e2 l) t- p/ N
let credibility-money 0; M; E# ^0 }7 x! _$ P0 Y: H
while [i < people]
/ ~' n' R# {. O | r! b) ^+ V( X[
. l4 P9 @$ z2 l) C1 ?set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: Y% h! \3 G( s& ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ K+ W5 i2 q8 u5 k2 l: a2 ] |; Nset i (i + 1)+ _9 [+ F* r+ ]
]
: R5 n9 l0 R& z8 m0 nlet k 0
8 Y# {6 x8 \- N, Glet new1 0
2 i/ l( h g( T# p" g+ Vwhile [k < people]* b$ [$ n: s; }9 R9 x
[
+ ^/ ^7 p5 k+ X$ T8 m" s! T7 Mset 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)
# Q* B$ w/ s7 R: j7 K7 X/ ^set k (k + 1)' G; `2 G/ x4 @5 B9 y* E
]
4 P) N0 \* @: `set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - M% F2 X' {8 }* U
set global-reputation-list (replace-item j global-reputation-list new)- r; M% s% H1 b* [! a# O
set j (j + 1). g1 {2 G2 S9 F6 Z2 d" K
]
" A& s0 F8 D' N- }9 x$ w1 Kend8 @2 B2 W9 s$ ^: b$ Z# p$ V
& j. V7 x# G- H9 r) { F5 s; x
4 q3 a+ U2 e5 P- b: f d
" u4 G, c) u% s1 S" d/ o) e$ Qto get-color. z, Q5 J) O. D8 ^
9 v: [. K% ?* z0 C$ ` x1 p
set color blue; i. `: g7 ?- S/ @. k. H
end. ?5 Q/ a. ~7 I5 L7 b
' \4 |/ M" s0 m# ?( @
to poll-class$ U+ b5 O# A5 p" k, `
end& a: B( e$ u; w3 \7 R4 I1 v
' Z! ?" O x- S8 @! s: Q
to setup-plot15 ~" o% A) g) t
1 V) y# z/ z6 r2 D. ]3 N; S/ Pset-current-plot "Trends-of-Local-reputation"" k& Q3 ~( C* u. b+ ?/ |2 m) x& W2 n% ?
, e2 O4 }" V3 iset-plot-x-range 0 xmax- Q2 @# g$ m4 s/ R2 @
% n- H" C+ I- J$ _set-plot-y-range 0.0 ymax$ |8 A; r$ S6 M1 Z. A% M
end+ |0 w2 ^1 p& a9 x5 d: P6 A; @5 ~
! {' Y @3 M2 A1 f" Cto setup-plot2
2 ~ Y# n5 ]2 d6 }! ?8 |2 H/ @8 U+ d. U. P
set-current-plot "Trends-of-global-reputation"
# ^2 @: t w- P8 d) ]& Q$ X- d3 n) }' ]+ s' ]
set-plot-x-range 0 xmax* q, Q. @5 p7 A4 s2 {7 E1 ?
" Z' L& l7 {3 I" a' g. ^set-plot-y-range 0.0 ymax
# d! n: s0 a: \3 Z% _7 Q1 Iend" x( a9 m C: A
; f! G0 h" E9 L* D( v
to setup-plot37 V) s! _$ w w3 a# R
& F/ e+ f- }* Bset-current-plot "Trends-of-credibility"
! Q: R1 j4 |, \# L# A8 R: g( y( \+ y4 N8 v) ]
set-plot-x-range 0 xmax# }& o. g9 p$ {
. L" n8 b0 X8 I; j7 m7 V
set-plot-y-range 0.0 ymax
1 q2 T0 Y' T6 E# J. d, q4 D- rend8 U) C7 [ S( n3 o
0 j- n; Q' q! O" Wto do-plots: g3 G$ h) o5 S) l. ~' n1 Q
set-current-plot "Trends-of-Local-reputation"8 x- Q6 |" g' o! n
set-current-plot-pen "Honest service"
9 n Q0 }% ^ b- l" D9 z' aend
5 i5 ?. X/ F$ q6 ?
# s& b6 W2 j! N6 a: V# ~+ |9 b[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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