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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) N, R5 x: R. S+ u* w
globals[
- P+ O/ V: Y8 `: G) L* i+ p0 Jxmax8 H" }: z9 J5 S) t1 k, L+ g
ymax
2 m- }0 m6 ]2 W% D( vglobal-reputation-list
3 W. c$ H1 S9 }$ f; i7 a$ Y& L, V5 h8 X K- \
;;每一个turtle的全局声誉都存在此LIST中
3 O7 d/ z+ E# }: c4 g: R! a9 ccredibility-list
8 l6 q" \/ {/ q9 J$ P5 n: I;;每一个turtle的评价可信度
- E4 K; g! ~" B% D& V7 phonest-service" z+ L( O) _2 a: } |/ h# }5 C
unhonest-service, Q0 n3 n$ S$ b6 r
oscillation
5 v. K$ {) V" ^/ ^rand-dynamic
w( e6 \# f6 b0 {]! ?, \( D1 N/ L" j
/ H# L( R( o6 {5 Fturtles-own[
. O. O: Z! @6 w$ H* Ptrade-record-all0 V7 ?& z r @* `" ^4 i) C
;;a list of lists,由trade-record-one组成; k9 y: O4 @2 X3 }' l" z
trade-record-one: x, d/ k/ H8 ^, C. J
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. B; q4 o% `" W& ~. S3 Y8 A0 u+ n# a/ C& 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]]1 [$ C7 J* `9 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]
9 p6 Q* R1 q+ q# O8 ycredibility-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
1 }/ b, K8 w" w4 n m- n4 ^5 R% nneighbor-total+ \" Y( q% r; g* A! P2 |$ E! d
;;记录该turtle的邻居节点的数目
5 P4 a0 M' ^0 M0 `* Z% etrade-time
. U0 ~; |* U) J+ b4 k;;当前发生交易的turtle的交易时间# w3 J) a# v0 s i0 D( p
appraise-give$ x/ z) r( T5 o4 O9 O+ y
;;当前发生交易时给出的评价( n |9 R6 B2 `9 G
appraise-receive
8 q8 C* b- t9 ~* V- K8 c* L;;当前发生交易时收到的评价
) W6 c3 ~6 y$ ?5 u9 I# x/ Eappraise-time. [! e2 L' L% }! G Z9 e
;;当前发生交易时的评价时间
. p; }+ W: ^( m) y3 Z3 h1 {local-reputation-now;;此次交易后相对于对方turtle的局部声誉: m3 {: j4 ]; i
trade-times-total
9 S& a3 |3 R& l9 s( I' l5 | p: X;;与当前turtle的交易总次数! Z6 |4 B* i' t* v
trade-money-total
5 t+ o- M" S! Y" H7 R;;与当前turtle的交易总金额; Q7 W/ B5 b. S- I& ]
local-reputation: C# q2 D# ~" u3 A# O' |9 t
global-reputation
# V' x+ w3 g* j) x4 X+ p4 \+ P( Scredibility
( O5 h" m2 s) X. o$ x;;评价可信度,每次交易后都需要更新
5 f" j# D4 }8 f" V; c* T- tcredibility-all) _: d5 k; V z! Z
;;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& c% |( K( H+ a
4 R3 {/ k4 e( `5 |/ p& O;;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
- b0 j. n. S) `0 `' M" a. ^3 W. \credibility-one) a" }7 o% R% {; a
;;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
+ c6 o2 {! f; F8 f5 Tglobal-proportion( \2 l- J+ Q6 v% ^2 q) G
customer$ e$ c0 b5 f. e9 k
customer-no! e7 s; P4 k0 D3 r- Y: S& g( H# I
trust-ok
( h* r% [' o1 J7 @* x- ]5 V1 \trade-record-one-len;;trade-record-one的长度8 n2 }4 u9 [2 t& {+ i+ ]. z
]# q* `- Y3 h7 G) z6 f, C J
6 C' |7 F( X4 P/ X
;;setup procedure
) ?: X% I' Y. D$ k/ h& U
T( U& k1 s* A R% ?/ o& Ato setup
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9 Z$ ^6 X6 ~8 j7 Bca& h+ z4 \. e5 j" H8 q
2 i* m' X( A' V5 ? Z- {% j3 \
initialize-settings
6 u1 f; L" F0 e) D5 }1 J" ^4 s) a7 m8 N) R
crt people [setup-turtles]+ W# F _! \) K1 p; Z6 G# I/ ~/ V
! f* U1 i6 R+ X- L4 \9 K. Mreset-timer
3 W6 E$ T1 {3 R% G8 T# ]3 p" l2 v7 M1 \+ G- p% v, ~8 b% k
poll-class
% L9 b! V' o- I% Q9 _2 R
I+ {. }; F5 \' |$ P4 t4 ?. I" Hsetup-plots( G+ j: @2 n; R7 @4 B
4 u7 k0 o. Y" L* g% e
do-plots
4 |& T$ e; P1 [* }+ P; hend
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to initialize-settings
4 q/ i. ?% W$ k2 t
8 e+ G3 E+ ~- \1 wset global-reputation-list []
* } z! t$ T( a8 j0 [% X/ w3 j7 }* ?7 S2 A7 o* ~) A+ d) b0 ~
set credibility-list n-values people [0.5]
u2 N7 d H( e" C' W% W! x8 W8 x( Y0 m/ b& V1 r
set honest-service 05 D# M1 Q) k0 z: ~
7 U8 |! Y; a! F3 l; t) E- A( Bset unhonest-service 0
" _0 `: q/ Y4 q. O: p$ ?
8 m% S: O% I3 f; V* i3 Pset oscillation 0, Q6 c# X$ |1 X% i- K" k
9 b8 B1 b9 `! C% S2 Z1 Fset rand-dynamic 0
1 Y8 ?6 w- v4 {4 Kend, p0 O! c ?6 o) e7 C+ @4 e
+ l9 g }) p' _" _
to setup-turtles
6 y3 l' l8 z5 f4 Rset shape "person"; {" O3 B+ g# O& a5 J$ ^# ~6 ]" o4 r
setxy random-xcor random-ycor2 v+ |4 m5 ?6 c2 Y
set trade-record-one []
0 G! D5 a7 N- b* E$ L3 w3 {* H- M! {- j5 h7 m
set trade-record-all n-values people [(list (? + 1) 0 0)] & ?- p% K2 {; J6 r
4 r! S: f1 @; [& j1 L& zset trade-record-current []
3 }( e/ A3 Y8 a2 n) Cset credibility-receive []
, ~% S5 O* w8 B! E: lset local-reputation 0.5' ^8 l3 n# l! U4 g
set neighbor-total 0
% N1 @5 f1 u* c2 ]* Q' gset trade-times-total 07 ~' p9 U" J4 Y* h1 _2 u
set trade-money-total 0
3 j9 e" z( B$ p. hset customer nobody1 H* |4 [0 P6 q2 Z% U% T
set credibility-all n-values people [creat-credibility]
1 v6 {% U; q$ ^1 yset credibility n-values people [-1]
2 B" }9 v; P/ W6 s' l5 Sget-color
* o4 v) \6 {$ d/ R3 X: n7 t4 R/ S* ^
end4 t6 Y% b; C/ X* U0 L h% U" W
: C& i2 I1 T3 |% Cto-report creat-credibility0 L0 f% { {6 l4 K' J* O
report n-values people [0.5]
3 \1 G& K: J& fend ?, s {5 N! A# `" W8 I
+ D1 M N# u% I2 Z+ d$ S* m
to setup-plots
7 Y8 \+ [. j9 `2 ~
% ?$ X; ?: a4 c( h% D5 mset xmax 30
7 ]# _& B# S2 {6 g" V( Z7 L, H
1 ^8 ^. Z% a* \set ymax 1.0
- k, r1 @+ D3 I! ~' w* Q
7 _# P+ K0 S$ Z9 c7 [* j4 Cclear-all-plots
% m" F. P7 U# |5 K5 ^* l. d/ C; h+ Q3 H' D
setup-plot10 j" j. N3 @- i4 t9 U& w. @
! f. v5 G {1 Y7 x; b' y- H% nsetup-plot2
: q+ b* Y% y) S9 v( k- ^( @$ a' Z8 p! ?3 g/ z
setup-plot3
( z7 I$ Q* h3 a1 P$ f9 Gend/ ~& `5 A* I2 z( Z0 W
: c2 M* h9 p/ D3 ?8 W% q;;run time procedures
/ _: m" k0 V: @4 Q- L
8 C( d3 Q* J7 M3 hto go
6 W. R* E) p' H: X0 U! } M8 Z
! M2 I9 R8 L6 t" d0 W( C3 Iask turtles [do-business]
# l5 _' A8 a4 s9 j9 Mend. s: L! }, h% [1 ?/ m$ A
+ W4 \2 B* u( [- [* J0 ^# p
to do-business
8 p+ A1 e" T b: s
9 k5 H) }2 {7 h& d+ S; ?; z. q1 ^2 E; ?4 \3 K8 @
rt random 360) s( R: t/ k* o1 x# r) t$ V% t
; s2 h3 ?8 ~: ?3 m# Ufd 1
. ^' R# T8 @/ I* `2 R
: W. g' z, y" Y! C4 r9 i) C$ difelse(other turtles-here != nobody)[
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0 ~& F$ n9 J! m6 x) y0 ?set customer one-of other turtles-here
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' q z6 w9 A- f' R) O;; set [customer] of customer myself: h8 Y$ z% z9 y" Y8 {) M# P3 }
+ ^1 e' o# {" \
set [trade-record-one] of self item (([who] of customer) - 1). R0 f; F! K% `! V+ n
[trade-record-all]of self+ M# ~, P0 y* h) c4 b" T$ N8 O7 R: ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; f! {" \0 D' s1 `/ E
8 I9 h) r& v% O8 ]3 r2 n7 ?$ ~4 p* Jset [trade-record-one] of customer item (([who] of self) - 1)7 I3 Y$ A- f) ~5 S
[trade-record-all]of customer
: ]$ l( F1 J! J% G' @* j4 k' S+ `3 x4 R% O& S, u3 v' A' o+ k0 m9 S
set [trade-record-one-len] of self length [trade-record-one] of self
* w- B. f' s! [. B% |5 t: [2 Y( c2 d7 Z
set trade-record-current( list (timer) (random money-upper-limit))+ g# H6 V7 l( p( A3 J/ c9 V; ~
& w, Z; ~6 N: Z# ]) xask self [do-trust]
3 |2 I" V- V5 n. m7 h;;先求i对j的信任度
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1 Y0 z/ b1 x5 a8 qif ([trust-ok] of self); s$ c, V- ]0 w
;;根据i对j的信任度来决定是否与j进行交易[
/ k0 y W1 }$ k( ?( f6 A9 Pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 U a$ n) P2 W8 Y- {
( X" \. V5 m7 u+ C# ~8 Z' f[! {# t0 V# X' l
4 K, D1 _7 r6 D. m0 {8 ydo-trade0 _+ N! j$ C" V q! n B- B* \
7 P; p, k& p6 L
update-credibility-ijl4 A; @$ }* e* o9 f: y
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update-credibility-list
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4 d A$ w) N2 F/ P% I$ [, W( b! e. A6 a' |) q( W; s
update-global-reputation-list' \8 i. _% i% M) L G% H
# T ^ T/ n" m- m5 D {poll-class
7 k* E5 D& |" w6 z
' m7 i* u6 k. Q* tget-color
- ]' e; y4 n9 t6 Z' I4 B
$ |( b7 J! `; r) a; V. E]]
8 Q+ T7 U2 j. J' M1 L- U& d! }: O1 E9 e% L$ W; P6 y$ `4 U
;;如果所得的信任度满足条件,则进行交易
1 |4 E9 [' p: ?+ f% \2 d8 ~1 g2 w/ A( N# l
[1 x/ I6 H8 w1 K* n5 I, a; v' K
* V6 q) t. Z; i/ b
rt random 360
7 }' n1 ?+ P' O( y" P' n1 v$ Q5 }5 H, c$ m
fd 1
: m. x$ s# H" n& ?. d( B0 k6 Z% D) S6 T5 B# u
]
: w. [' G1 N1 o# w. f% d4 L# h ^& _
end
( O0 R" K- ^: _2 G; v9 f4 J, ?. y5 ?, i# B2 ` U
to do-trust
/ h$ t( D3 f2 f# |- `3 k1 T2 uset trust-ok False$ M' A- m0 z( K
; ]- h& D) c' L! M( V7 }+ E
% |5 G( F9 s7 m- G2 \- j' Flet max-trade-times 0
1 n9 ?9 e! ~/ r) Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. q; Y2 B' X3 V3 h* i; ~( F
let max-trade-money 0$ [1 ~8 I+ F6 u W
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] W- i5 X& j+ n0 |; ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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' c6 M9 N+ z! U5 Y$ y3 A
2 `7 s( }0 q9 e7 v; |: B( `& }get-global-proportion
( E( o9 t, v- R9 [ n2 }6 H3 @3 ^" f* Clet trust-value
# z( X. I: a( B$ 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)
) |" b/ ^" `" T5 nif(trust-value > trade-trust-value)
" E1 j5 j) V9 i- \$ ~[set trust-ok true]
, x4 {) J5 k1 {' t1 A% P' W+ ~end
! t% y2 h/ s' y' W, ~% ^
) c: G0 c; D) k# b4 S; s$ b" X! kto get-global-proportion
/ M+ i8 ^; r; ~) y9 cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" i& F2 |& A4 h- w0 S# g[set global-proportion 0]
+ P ~5 X( V/ A1 F C' c[let i 09 y' s1 u- h' f6 o# Z4 v
let sum-money 0
M" A) z: g% T5 B1 i% _ pwhile[ i < people]4 w5 [7 I) d5 r' V4 X9 H
[
& E* H7 ~" a' J/ Y, N3 H/ cif( length (item i
) [* B. c, e8 T( t+ ?# {4 s3 \[trade-record-all] of customer) > 3 )! @; U# N* E2 X* X8 U E) H
[- j' `' a2 m" x: q) i- x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 I; \# y7 F. T3 m/ y9 {5 {+ Z]
" z7 z+ l; i0 @0 ]( R3 @]
% C4 ~' \9 f2 Y; H3 j' Tlet j 0
" I! ^# Y! x- y- V4 C/ xlet note 0* Q4 e6 e& `- e
while[ j < people]
' V% b7 d- h# G[
, a* p8 x7 O0 K9 \3 k# jif( length (item i1 p% p! c% c8 J# ~0 h# i7 ^- A
[trade-record-all] of customer) > 3 )
! ]- ?: O, L- r, g1 w[
4 l; ~5 d/ U, k$ G7 y& Gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ S+ k; e: Y% {" F
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 o; j2 g+ C7 q2 o% K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 A( C0 T; @& L, A+ K( X
]# c$ O N7 x* P' j4 q# F
]7 S% S; D, @# q' }
set global-proportion note
" F% V* l6 W3 _' n1 G' v# S]
( M4 H B; S$ c$ P+ I) hend
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to do-trade
$ o; m! o& i) ^;;这个过程实际上是给双方作出评价的过程
! j3 S" \) \- {& n) m/ tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 A' d4 `1 @% y7 M7 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价0 N. Q4 d5 _0 f' N
set trade-record-current lput(timer) trade-record-current
! v- C( {; k( M;;评价时间 G; e6 ~/ m- O; E, D# e
ask myself [: O% M+ z2 ]/ w: G/ i
update-local-reputation
' l: Q0 A" s% ]set trade-record-current lput([local-reputation] of myself) trade-record-current
+ f* |9 ]2 o( {3 K]
$ C( |: j- E& ^5 N5 w! d% dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 D; q+ y* h/ U) a) k N6 l;;将此次交易的记录加入到trade-record-one中2 i% X0 h$ i. ]; h, w% ~7 ~/ C
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ {' {/ a5 x/ C4 y8 O' f: @7 D
let note (item 2 trade-record-current )" K1 k( J9 l& k8 x
set trade-record-current8 a& e5 n, o& V7 M$ b
(replace-item 2 trade-record-current (item 3 trade-record-current))) j+ D# I% q- I n! |
set trade-record-current
& |, Q/ L8 H& h+ S4 z x0 d) M(replace-item 3 trade-record-current note)9 _4 u; a9 c( z0 }4 m6 p) w
- x# V/ x1 d3 s6 y
$ l0 |& E% X; r i; W( ^5 ^3 a$ d/ Hask customer [
7 r W, J2 Z7 ^/ d7 M4 rupdate-local-reputation K- x$ G+ d: a' o0 Z4 r- R
set trade-record-current# _) b1 E/ U$ J5 H L
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + u9 h' _" E' k
]+ ~ R4 ~; e* B' }, ~/ X
) f2 ^4 _6 s0 V$ j% e8 o" ?
* G2 y1 B5 h# _! h; R' S
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 @; o$ `# ?3 l* u
) d. I) G- y C1 Y7 z/ Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% G5 {! R5 |9 l4 t9 [0 Y/ L;;将此次交易的记录加入到customer的trade-record-all中
5 o+ Q1 Z1 A, R2 Tend* f- b T1 d1 `
8 V0 N M8 J! F: e" r. o
to update-local-reputation- p" c. S7 b+ T* [! Q" U& ?0 _
set [trade-record-one-len] of myself length [trade-record-one] of myself/ Z) Q2 p( _3 c' ^# ?0 b
. f2 b8 u O; A& V! V* H
( f9 {* @+ I/ g' ^;;if [trade-record-one-len] of myself > 3 8 Q7 b E, U2 N& t$ _& M9 ^4 ?
update-neighbor-total
- w( B+ u8 I* J;;更新邻居节点的数目,在此进行
) t7 E& D$ ]) Elet i 3+ I. |6 S( \) t) O/ n& d
let sum-time 0
8 V* v! F, b& ?0 }while[i < [trade-record-one-len] of myself]
& X6 m R8 k3 k6 W[2 I) O0 g7 X4 w3 g7 a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% L/ M) d- `1 f! l1 X$ Rset i
& x. Y! n) x$ _. M5 A( i + 1)
0 V) j7 z! i: t$ H @3 _]
" V& S7 \4 S+ b* v" wlet j 35 C$ p+ U: ~- A% `: L
let sum-money 08 i' ?( _ M) T, c) G5 v
while[j < [trade-record-one-len] of myself]
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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)& [; p, e8 O/ d
set j
9 B( C, |. t3 l" t1 W( j + 1) h- b# D( g8 ]2 m; E/ W+ q
]
o* {; c' p2 v1 G; A5 }let k 3
/ c* Y5 a9 H8 F4 F, M+ t! u/ M3 `let power 0
9 Y8 l: J' i6 A' C0 I ~8 Slet local 0
* }8 E& W R" [ nwhile [k <[trade-record-one-len] of myself]
4 T8 T# N$ W5 l& L; a[
( O5 Y6 y* x2 Y6 ]8 w: }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) 6 n2 W+ C7 B: o/ @) L
set k (k + 1)
% a u v; a+ k+ y]% c9 s& e$ V$ y
set [local-reputation] of myself (local)1 l+ D$ s2 _+ H
end
x( h# m2 C4 \6 U- W! R8 j2 g1 S
! d1 H s! t: P* J) s8 v8 vto update-neighbor-total% \; \7 e+ Q0 e# a' B! `
0 x) g' M' ?+ u& T) \# S0 x
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% l+ \8 ?/ a6 W- ]* Q" E* `1 `8 F/ o8 g" H
7 t, B+ v9 y! p4 j1 x5 mend
$ p, ]1 @# z9 }/ |# U. P/ Z- b; S# B2 e8 V
to update-credibility-ijl
Y( \- f3 _# H
0 S! w7 n- n! k' |' f: ~* ]2 i6 d$ H G;;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。 @" _0 V$ k3 n {7 b7 x
let l 0) ^: k7 R O$ f9 h2 c' T: Y
while[ l < people ], |- Z2 z$ ^# |5 h' a( X* S+ z
;;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4 P( M2 S0 w D; {7 p; G4 T7 y
[
8 h& c. o( u M; Slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 a6 l, F6 j% U' |+ mif (trade-record-one-j-l-len > 3)
! d% B! g: B2 ~% `1 m2 _0 z[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
$ U; R( P9 Q7 G% }let i 3. J$ F8 R3 i& K% {3 {& X) M
let sum-time 0
; q3 P" r- K$ _( J( \, K( p; Fwhile[i < trade-record-one-len]
D+ v) d" P9 X[& @8 j( l" q8 e" N+ `
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 [( d- B V2 F+ C" }: M! I5 z7 [
set i
& V6 x# f6 w8 s& P$ \. ]9 a( i + 1)" N. F+ A$ p% p
]9 j0 ~6 i; H9 @6 ?" ?
let credibility-i-j-l 0$ L9 j- p7 Y7 S g4 P! Q
;;i评价(j对jl的评价)
}0 a8 G1 J) L4 I2 Mlet j 3
: x- {; E: D! L. Olet k 4
! Q+ u3 P: Q9 ~4 S* wwhile[j < trade-record-one-len]/ O9 l: K7 J# H) ~" F, l
[# g0 e) J8 j3 ~" v( d2 C1 A$ {
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
- |; n. O7 V) k! u: L8 vset 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)
0 C4 v3 b( A3 H" E7 c* kset j2 X4 u- z) d x
( j + 1)3 W& c& i" l8 G
]: e+ E8 n2 W% Y! f+ ~
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 ))6 b/ {6 L/ [% }3 B% L/ W# Z& b
, @; C( ]& k4 @4 F# n6 J
4 `4 g1 C6 J* f) ]' U( r
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) Q% v2 R" U2 i6 f
;;及时更新i对l的评价质量的评价$ n i6 k" P' B! G: M
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 `7 Q! X) N# P
set l (l + 1)
7 R3 c- L6 c1 ~5 Z' L]5 T) d2 K5 m, }! M, L$ U: R
end
d& r+ }$ ^7 }0 T3 ^4 A8 d% w$ |0 L- r2 @
to update-credibility-list
+ ^1 r, [& D* ]; `3 _let i 0/ k- x/ H; B; s' P3 Q6 R9 z3 \2 ?3 k/ p
while[i < people]
: ~ O3 U7 e i: w. F[
2 S, X+ y% g. [5 K. n; Vlet j 0
( j4 X' W. w8 t! i' d. i" olet note 0
, `3 T! L2 Q! |! ~) M1 a3 E, Ylet k 0
+ V9 h, i) E9 L;;计作出过评价的邻居节点的数目/ Q0 }" f" d6 X- v- y
while[j < people]1 L Z( n7 n7 N7 T( G, H+ t- F
[+ Z: n, a* o' B! s, i( x# n
if (item j( [credibility] of turtle (i + 1)) != -1)
! `7 k; k3 t9 h) Q/ c v;;判断是否给本turtle的评价质量做出过评价的节点& _, c( b5 b' h6 n: _, N
[set note (note + item j ([credibility]of turtle (i + 1)))
" ]; o* R- Z/ F3 ]% ?3 n;;*(exp (-(people - 2)))/(people - 2))]
9 Q$ x2 S1 U& Aset k (k + 1)7 z' \5 |6 ^8 Z6 s
]
8 m. Y' X$ a& }set j (j + 1)
9 @& M/ H5 `+ x0 L]6 p" L) e. \# O# t# G
set note (note *(exp (- (1 / k)))/ k)
# Z. U: n9 M6 ^8 dset credibility-list (replace-item i credibility-list note)0 \2 F" I& E; }9 p$ W& S7 \3 N* |
set i (i + 1)4 b5 K. u" p V: H3 W. V
]4 O5 b) q; i" ^* s4 A- L6 T9 s
end0 H: w2 G/ G) d7 o
0 o: r. p; G2 O* z
to update-global-reputation-list) O4 V( \% v) t5 s& t' @$ A
let j 0
2 n5 f" a* ^- {8 p! Lwhile[j < people]. {( `! U. g3 A. A' X
[( |) K1 K; c J9 K/ j2 H/ j
let new 0
) f* }# s$ y) I/ B6 Q' s;;暂存新的一个全局声誉
/ y) W* o% V, z7 rlet i 0/ i, A5 e1 _ q1 n& l' H
let sum-money 0 E5 ~3 L9 r; U1 L8 D6 A* F
let credibility-money 08 j: {/ N" \. [! o/ u6 j1 I
while [i < people]5 [) t1 m2 |) l3 ]
[2 t9 W; h( e! Q3 ?! v# q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* z8 [9 X1 [2 @0 Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' Q3 `" P7 d0 [# Dset i (i + 1)3 R7 v6 u4 X; j, H3 X$ v) o4 O
]7 x8 A( R2 x5 P# v4 r1 ^$ C
let k 0
( F/ _9 C: T% Z. D7 f. rlet new1 0 K% i* X8 h J! u }
while [k < people]" q& x) B: Y v6 t1 g0 s; R
[
: f3 e. j& H! |; v4 jset 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). F" |0 q# m3 X8 }
set k (k + 1)9 W3 ^/ a. ~( r' |/ N# Q# z
]
) C. n R+ J2 n8 z% oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ r( S5 o' r9 V) }set global-reputation-list (replace-item j global-reputation-list new)
4 V0 P- B1 v) E) q( U1 F# M& Eset j (j + 1)
( U: ?" W" C @- u] |: S$ N+ t l3 ]* K
end
' J% O B5 @% R- s a8 N2 z( \ W k. h( \5 x, g9 v
0 k7 S; S" x/ } p0 W$ _0 b
T9 f, F/ Y0 g& D1 b: W9 Yto get-color
. i0 t8 l6 r* y0 K
. y0 G# M- e3 S' o7 Z9 fset color blue
5 [( D e* h% w; H- Hend5 _0 b% T$ D& H, p; @$ W, j. s5 d
$ t& W* u4 W) V. R- d$ `* A( c, B
to poll-class
7 t/ s3 ^, ?& qend
1 \7 |' \" i! v( i! z7 P4 ]
4 Y( H" r/ }8 U/ g5 @( Pto setup-plot1* s: R b$ i5 ^
# f. e5 a+ M4 u: @% k9 m
set-current-plot "Trends-of-Local-reputation"/ U, o+ R4 M; g: n6 E; k9 o
1 n6 ~5 L9 `, I" Aset-plot-x-range 0 xmax( L3 d, K" E0 v% i$ ~
: i' o# s' M" \4 \5 qset-plot-y-range 0.0 ymax
' h& L/ c J- L9 iend
, J4 G% E) x7 i) J+ ]8 r( Z4 l/ N. f3 g: G A4 U1 x
to setup-plot2, ^9 ]0 c, m+ w2 \ b! s1 W+ h
. E) q2 h% |8 M1 ^1 Uset-current-plot "Trends-of-global-reputation"
4 t8 Z T6 x' e3 C+ X% L# a
0 }! M* F9 w; j8 T3 Nset-plot-x-range 0 xmax
9 Q. ~! t- {8 ^, ]- f$ m: I0 e3 M1 F$ [8 u; B+ a
set-plot-y-range 0.0 ymax
4 o: t9 k0 {8 V0 wend! y0 [- J4 I" ^% u. {6 }
, n5 q2 E, |( W, Z6 M; N
to setup-plot30 Y5 R. t4 w+ E6 X
0 {6 b$ N5 m+ A& V8 I
set-current-plot "Trends-of-credibility"
% M8 d% P0 b- Z c2 D: j
. U3 X1 e. V, l1 a1 ?: ^set-plot-x-range 0 xmax9 w2 {; g; r5 X; s0 F1 Z' n
7 s7 r; a* I4 E+ J2 F. { S
set-plot-y-range 0.0 ymax
$ \5 D; ^. [& j" _1 I9 oend8 a4 G/ q" {: l
6 r/ e* Q& X" m" U! _( }to do-plots
( Q* F) x0 j: K5 ~* z' y) A6 Kset-current-plot "Trends-of-Local-reputation"
6 D; |' q1 r5 D7 wset-current-plot-pen "Honest service"6 ]% u J$ ^) a4 ]6 ` s H
end
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8 g) x0 |+ l3 J: M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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