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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
6 V& a8 K) U4 r/ s9 Fglobals[
G4 G4 ~' E" q. T# ]+ axmax
, ~7 u6 Q2 L8 dymax7 @& l; B$ {! e9 \- a
global-reputation-list' `5 @/ K0 d9 U9 L# T, o. S* C; Q
4 d7 v5 J! i0 L+ H1 d0 i9 C
;;每一个turtle的全局声誉都存在此LIST中
* |; B, m. p" T! f @2 A, Jcredibility-list
) ^5 {& S1 t9 P. ~3 Q* T7 V;;每一个turtle的评价可信度
: K0 p& s( v, I0 ^% o) Ihonest-service
! N. T+ ?$ O6 s5 f0 G Z6 I3 vunhonest-service+ N1 J0 N4 l. x" D8 j6 [
oscillation
/ c" n8 W# \* P2 U: H7 d: z( `# Frand-dynamic
. R* v u8 J1 B" Z5 l4 []
5 i7 i! c5 w) b v5 q) M* E1 _ s3 l% h: X
turtles-own[+ F8 B7 ]- l4 s7 W
trade-record-all
9 `0 \: G* B, R" w, @' R;;a list of lists,由trade-record-one组成
1 J6 _! a8 w! @( O6 [! {trade-record-one
9 ^( W/ b" m6 Q2 X$ W& g( R;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录2 W7 Y. ?! Z/ e! l& i
5 z' t6 j* g# P- u0 ~;;[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]]
: Z" I4 O: e8 G+ | J ctrade-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]
) E' G) C6 @. `& n, ]4 R9 q% Zcredibility-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list4 s7 q1 l9 Q4 ?
neighbor-total+ p& g( g! K4 w
;;记录该turtle的邻居节点的数目
3 J" t) ^/ I1 r9 E Itrade-time: U, S6 x7 u2 A" I
;;当前发生交易的turtle的交易时间
) c0 d% T5 n. }) b- T) H& ^appraise-give
$ e: B8 k5 q, k;;当前发生交易时给出的评价/ n) ]% |5 n/ Y8 k: S: P. G, m8 [0 {
appraise-receive
0 t/ u9 {, L7 x" N' g+ w: H) P" };;当前发生交易时收到的评价
7 Q. Q: f- w' I2 X, ^# `$ mappraise-time( o" r3 H$ t& b6 t$ o) T- H
;;当前发生交易时的评价时间2 z% E) F5 d' k& h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; V/ S& R& z+ r: D* M
trade-times-total" Q$ [, T( o1 K; t
;;与当前turtle的交易总次数
2 y) ^! p2 \! otrade-money-total# M4 C6 q8 H& G: h2 l2 x6 _ Y
;;与当前turtle的交易总金额
' z- n/ P% d4 P6 p/ h- hlocal-reputation5 y2 ?; T% a9 L; u5 |
global-reputation
_& ^9 I- v) A. l* lcredibility
; z$ b6 L3 W. x( q1 _ z9 K;;评价可信度,每次交易后都需要更新
: }2 D+ v% a3 X3 ?" i1 o; x& P; vcredibility-all+ x, u1 X7 w3 R* P
;;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
# Q) B" n" N( L/ e2 y) j! D; {4 Q
;;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( V# }8 e+ J6 n) ^) `* N# {
credibility-one
/ w" J" s/ s1 ]5 g;;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
6 N0 x' W/ f( j7 q: }global-proportion& A0 U0 }) m2 F! ~
customer9 E. K: u5 g# c- D) x& n* ^
customer-no& v& R+ M5 s4 L& @: j: N
trust-ok5 X1 U7 I9 u3 J; ]
trade-record-one-len;;trade-record-one的长度9 e! u4 q5 c$ C& F0 Y0 d
]
0 k5 ~$ U0 r" p# }( _3 x) z# h F. ]+ s0 i" ~0 F
;;setup procedure
, r2 U( m+ I, C8 }+ Y: Y9 b! [
1 D# X+ }4 G! { {to setup% t4 G y* B }! [" f z7 s3 }0 ^6 s' [
( {- H: R7 l6 }6 q+ C" X! \ca/ E6 q3 D" m! ?6 W. p0 v
0 ?. q3 I0 p/ ~ r+ O! o! jinitialize-settings
7 u5 Z: H U2 V( u7 c: P q w# e- Z- l6 h
crt people [setup-turtles]- c% G) e& V( Y3 z1 j4 {
( `9 @% L K- H' Y- Q6 E
reset-timer' ~7 f' |' s# _1 n
& V) u( ~9 h$ N$ h9 O+ ^poll-class* o! u, x) J) _1 b
$ M4 V( u% A' q( y. V3 O% G/ b
setup-plots
" j) a1 q; H- Q, @/ k& Z# h2 V8 Y7 f+ h) |6 N) c& j, Y
do-plots
! P" S* I5 \$ Z2 N; o& @end$ w( c6 s5 e6 ~3 F2 Y- D
6 ~; E7 U M! V
to initialize-settings% q8 U- p: v: A( \$ j' w T. R7 ~, Y5 H
: M, Q9 Z: S5 `; [6 i! O/ s7 Jset global-reputation-list []
5 \) M+ Y5 K1 j, \; {
; S7 g# y# [- h: |set credibility-list n-values people [0.5]
* n, o' y; Z8 B- h% f8 e: L; C6 n7 J4 R+ c. ?& F
set honest-service 0
% X [/ o$ t1 c0 U7 C2 \9 @6 Y
set unhonest-service 0
2 F' D q8 P, u- R+ ~5 H$ A1 y0 M. V: U7 l/ q. t
set oscillation 0
+ k+ p" l; v) l$ x' x9 n8 ?0 m6 D. @
set rand-dynamic 0
3 E1 ~* O5 |$ q9 P$ q; [) mend
. E' {' u- L9 M- g/ z" a: F" N6 q8 E" ]/ j6 M; ?, B& w
to setup-turtles
# u+ G) ?7 o" p1 Lset shape "person"
d. W7 x* r; G: k+ Ysetxy random-xcor random-ycor
0 ~$ p; l+ P: d( w% Nset trade-record-one []
6 {4 s: h s+ i Q0 c$ E6 _* e2 _; m" w" J$ Z+ k+ C9 r( u" y" G
set trade-record-all n-values people [(list (? + 1) 0 0)] 2 {! @2 [# X) k2 C
; R2 ?# |$ e! B# x+ B% S7 A- rset trade-record-current []3 z# X& B3 ]7 r$ M: y
set credibility-receive []
+ a- s6 _& ~: S" Z6 h4 gset local-reputation 0.5
! o9 c0 k s; O+ T9 G, Jset neighbor-total 0
7 ^9 ~$ l4 j2 P: Wset trade-times-total 0
1 Z& @7 ~- d3 z3 ^' fset trade-money-total 0
/ s6 H- d1 T/ `7 v' @7 V2 k2 pset customer nobody
7 x+ [# R" o8 N+ H! K3 mset credibility-all n-values people [creat-credibility], ?* Z% V8 q2 C$ \+ `% n# i$ B
set credibility n-values people [-1]/ Q+ u3 A7 x' a- _
get-color
1 b" P1 v$ v* L$ n. n/ `0 P+ R+ i8 v; ?3 d
end
C1 g0 T' X; u- k, v" |3 C
4 Y" c5 Z! H0 n+ R' J$ Qto-report creat-credibility# h+ n3 H) ~; D4 J
report n-values people [0.5]* c p+ P& y4 k( F$ n. {0 J1 H
end2 q* E) F5 Z( x) L& o& f7 I( j
' f/ o; S- Z+ F+ X& t! h0 e9 j! v2 }9 p
to setup-plots
) v7 O- n) i4 W* j4 J, f
+ f: c ^$ U2 Z, ?set xmax 307 x, n8 T6 V+ k# ^
8 Q0 d) }7 c7 z: t% Pset ymax 1.0
8 _; t% ?6 d, K4 G1 c8 T9 ?; t$ o) l! _3 }- [# w9 \ }
clear-all-plots* c V. g1 g- i% e& \6 ?% _+ n
. A/ j3 }- a0 [! Z; T, n" L4 Asetup-plot13 z: U1 J9 a8 N
/ ]0 a! F$ C( o# {$ R; G
setup-plot2
6 Q) o9 A- d0 w0 L& P0 b# {' g, S- I0 }) U/ S- e* X
setup-plot3
$ R" ^9 t9 n9 rend
0 V8 h7 Z6 x0 G- d9 F# d& Q, V6 d* n1 n" Y, k: t' J* f* H3 e
;;run time procedures
8 i% j# z i+ r& J, y5 W
9 n. d0 x: `$ W" G! h! Ito go
* ]6 n+ ]* t9 O7 S4 y8 U
/ `) H. z0 V8 h" _$ {7 Rask turtles [do-business]
+ ]2 W7 g) U# a9 Vend
2 G ~9 y6 V' c( y5 ^# {- K6 P, ]: u7 ~6 j6 h$ f, b% q5 r7 i
to do-business ; e2 D% W1 s# i5 G- d- c2 h# T
% N* r. I% }3 L; b) p7 S8 O: |
& ^+ o4 q- g4 R9 t X5 Art random 360/ ]% L6 [1 T5 z. O9 n* x
1 o* `% e/ e" N# n/ Bfd 14 L% Q5 B1 q, h: l0 b
6 F& ?$ e5 ~3 } ]! W( Fifelse(other turtles-here != nobody)[; Z7 l* T+ g. K, C+ M8 T" b% j
: u) [. S6 ?9 N! n2 y1 I0 U; Iset customer one-of other turtles-here- h% S8 g: I2 ~9 O# p1 V# i7 K
0 L( Q3 t+ Z g;; set [customer] of customer myself
0 O% z8 W# U( X
, f/ |# A3 Y* E5 p5 z, u6 bset [trade-record-one] of self item (([who] of customer) - 1)
7 M2 f) S, `- e' {" N: J[trade-record-all]of self
- g0 F, I) D: f* x9 _9 Y. D: m;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: h& J- m' O2 }, q4 n$ {0 i
5 C1 j7 |" L4 K: i3 nset [trade-record-one] of customer item (([who] of self) - 1)/ o2 n, o6 b- z+ ^
[trade-record-all]of customer$ _) W* C" X. ~
3 R$ r) ? [* C
set [trade-record-one-len] of self length [trade-record-one] of self% ~- b& i8 R/ i. {+ q K' B6 d
0 u$ S! g8 y/ ^ b! b! ?. Wset trade-record-current( list (timer) (random money-upper-limit))
4 V8 P' W3 P* v/ A# H& s/ Y2 h/ }$ P, A s6 W
ask self [do-trust]
* F% Q4 S# A' p. d/ Y# s9 M( C; @' v;;先求i对j的信任度
- F1 k$ h: {; H2 Y8 x2 D4 }4 k# G2 Q) ]# R
if ([trust-ok] of self)
0 r4 o# U$ e: K8 V/ a;;根据i对j的信任度来决定是否与j进行交易[
& g6 q) B( \! Y* \/ Kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" E) r' l' q4 o7 F# y! \1 l' c, ~
, Z! [1 v* p% v x9 N! Q[
$ w' ?5 M* M# k$ T
4 E5 D2 |* \" ~0 Qdo-trade
0 ]$ M2 }7 [1 W
w5 p! X" |$ S/ d: W* Supdate-credibility-ijl
% x$ W( }/ B _1 u) c9 ?8 V
4 G4 i9 K/ M8 a* {& K7 f. Yupdate-credibility-list3 n9 O6 p+ G: l, ]) B8 h
8 ~" g4 y- v- S8 a3 B
4 I% E* P( f4 Uupdate-global-reputation-list) D6 Q5 a- O- d/ J) H8 L6 f1 ]$ d
$ N# }9 |" ]) S* }; xpoll-class
3 E/ W0 U5 @& Z* j
9 J. h1 y& x. V$ Z5 s+ h: r8 Tget-color
5 a9 u! W' S3 ~, D! s! n% B, R
6 B+ `( K' F% o- `]]
3 h( J& y2 W Q6 D0 t, [- O8 o: v2 ?
( w s* R3 J) G" y/ H7 P;;如果所得的信任度满足条件,则进行交易
0 N+ g3 v- y _
4 k5 K- Z% T; g2 F6 a/ N2 O[& j* o0 [$ Q- `. U6 C' w
( M- w& Y) ~& G! j A) Q
rt random 360 ]- S2 [0 d1 N: Z! R
& U6 Y7 o: { ?0 E: xfd 1: K3 E9 d6 s$ W- N! X
2 l: E* f, ^0 N" r; \' ]8 d2 I]9 h8 K! c- _5 A$ U( R7 g; T
+ V/ m. r5 s+ L6 S/ x+ X d# b
end- Y1 K1 Z/ y2 Y) ^# o1 Y7 L
4 M* a7 @4 V. n9 h. g8 uto do-trust , y; _1 Q* r( Z, X% |/ d: u9 U
set trust-ok False) ~9 V: [: h/ J$ `' a( z
+ T6 H; Z# B7 G) D9 i
. E& A/ h9 ?: Q9 y, ylet max-trade-times 0: M/ y6 ?7 X! g' U2 h
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: B. R' k/ m. @* T+ J! O6 @let max-trade-money 0) W& g0 D/ c1 \6 g6 _: I) Q. n4 d1 _
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% U5 r5 {* `. s) j0 T( D# m
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" U q3 _2 x/ J4 a: s( e
! [; X) a$ @2 s2 ?2 A7 L
. b% f( u% Y, U: H7 Iget-global-proportion9 g$ Y4 Q8 i$ q4 s2 d, e' K
let trust-value0 u* ? B9 V+ _
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)1 |& |9 X3 J1 O3 |
if(trust-value > trade-trust-value)
' g/ W1 M2 _( K% ]: F( d& v[set trust-ok true]& X* N1 G ?) Y4 P$ h$ h
end7 d; ]$ v. N# y; P- i, I m
* B& {* o# I9 l1 @' g
to get-global-proportion
% p( `3 q% y5 B' Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 l' J5 v# ?( q! d* ~[set global-proportion 0]4 ]- ^8 {8 ^1 G/ ]2 a! w, u
[let i 0
x3 B/ J: H& l' H) blet sum-money 0
2 g% N3 g5 {8 G/ M5 x9 @' U+ wwhile[ i < people]+ ~6 G7 K8 T6 a
[
+ E0 ^/ p: q. ^& Nif( length (item i
& P8 _ P6 } K, ~/ ]4 X. X[trade-record-all] of customer) > 3 )# d/ C; B) K1 H9 z# b8 ]* i' B/ c
[7 ~3 B: s- E& Z4 A, E3 G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). c& X& J1 T1 c1 r5 ^# g, [: J8 u
]$ |1 w, }1 K t; @0 c
]
; m7 o$ z& o. _8 U6 n2 E9 z) Xlet j 0
1 G4 Z; G) b* W; s0 ilet note 01 i: y. ?4 P. L+ [9 ?
while[ j < people] H' \1 i) D( G: [4 p P" E' i
[# x; u# t) `* I- Q7 A2 Q
if( length (item i+ U9 \4 t0 V V# z5 z7 j
[trade-record-all] of customer) > 3 )
* u) P4 w0 l) f7 ^[
! A& S3 w) J% U7 C w, F5 mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 s# u7 I: ~% h[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 x" J1 p- {& V: z% c[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 ^2 ^0 n! a8 w5 n; A. e4 w5 n: a
]
) \( F, I( b" W& S# ?]
( g+ A( D6 `& qset global-proportion note8 _5 s; S7 f& g7 ^
]" j5 [* z: z% @! N ] k
end
~5 K# ^1 P5 T# P
& H) U3 H5 n8 h a7 k0 N" N; Y9 _to do-trade5 e" s9 @1 K% K( X. K, `+ W* E3 S
;;这个过程实际上是给双方作出评价的过程, L6 B2 t7 ]$ |0 P, g" r9 H1 _4 T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- o' V) g+ l- B& R- _2 bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! J5 g7 j& g% c3 F: { eset trade-record-current lput(timer) trade-record-current8 `9 R; D7 l" e
;;评价时间+ W. F: O0 e' V. D' G3 U# [, A
ask myself [4 j, I6 V) w% l
update-local-reputation+ Z1 r0 x, l4 Q2 T- p1 ]
set trade-record-current lput([local-reputation] of myself) trade-record-current& J/ m+ o$ Z) ~- N! {8 A
]
3 b# r7 N+ ^7 oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, Z* M# N9 B% U( b# T+ _% E;;将此次交易的记录加入到trade-record-one中6 d. m# M, w8 T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). t0 F4 ^- ?/ v. M8 ?
let note (item 2 trade-record-current )
$ \1 o8 }1 a& Z0 ]set trade-record-current
4 s( Y* u4 O8 \& e(replace-item 2 trade-record-current (item 3 trade-record-current))) H i/ p1 P n
set trade-record-current
4 @ y. b* }" s3 D. K(replace-item 3 trade-record-current note)" o( E% c, D2 d7 H
O: n4 z0 M# P( U$ q" w( _! a3 s
( k5 K+ i" }% @+ yask customer [4 O0 O6 d4 O2 q0 ^% h5 ^, B
update-local-reputation( Z/ m7 f2 k1 {% r- V
set trade-record-current( o2 O. x# n7 m" o, x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 j8 l/ R ~. ~5 j4 i/ ` _]
* h% W4 r6 Y- v; W' g" ~1 c
; `4 v$ `; q& p7 [
1 B' G! E0 }# R' ?4 f& t, Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ w; K8 F F# A, x" I
# P2 e+ M( m4 G- |9 ^: G5 _
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 u& K5 q4 H: W( v$ ~ t
;;将此次交易的记录加入到customer的trade-record-all中
2 h; N$ n% X/ F) q# W! D- d! wend
( U# H& j1 t! }3 S( Y1 D* G. a4 U1 t( j- J" O5 d
to update-local-reputation
8 ?( \/ @0 _6 ?+ P* l6 ~' l2 uset [trade-record-one-len] of myself length [trade-record-one] of myself2 v5 S7 E1 l3 z) }( H$ |
5 g0 }$ P. ^$ h7 U- _6 p* E& `6 o/ K1 S' C* D; w* f$ B4 y3 A
;;if [trade-record-one-len] of myself > 3 5 C4 ]( w m. O6 T. k
update-neighbor-total
7 F1 V, V% c ~- J8 d;;更新邻居节点的数目,在此进行: _& @9 g% ?( ^2 `/ V9 }; D$ e: S
let i 3: A. ]5 u T' |3 z$ b$ b, O0 B Q
let sum-time 0
; p7 H' @+ k1 R$ Q/ h# xwhile[i < [trade-record-one-len] of myself]3 y J( p3 m2 t6 w% n9 P
[
' H8 v" `! L( ]- a, y# Oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), n3 Z' R1 I1 Y9 c# [' r6 Q
set i" L/ L1 F8 l) ~1 g1 J# U7 `5 N
( i + 1)% d0 I' w6 X1 a5 x9 B2 A3 J
]' z H" l9 F3 B: G+ F7 r% S! r9 w6 e2 ]
let j 3
& e& o: z8 q9 x/ Z @let sum-money 09 G% {& E Y& k/ A9 w5 q
while[j < [trade-record-one-len] of myself]
3 l% J1 V$ c. L0 `' ]$ ?4 @[
6 X& |$ E1 U# {) }! D5 ?. Zset 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 u0 y) E' Q. [. ^
set j7 G. `7 _# I4 b6 ~
( j + 1). X, i% R4 k1 L3 g# V' t
]
$ J8 X0 h, |0 ]( f& a a3 }! Clet k 3: m8 O* Q- }" U: J- ^1 ]& [7 H
let power 0
& t) O: p; I6 z* }: q6 ]6 ulet local 0
' C! t" | u2 V' w- X1 h, S: b' twhile [k <[trade-record-one-len] of myself]
5 f% h* c. s% ~[
5 O7 U5 Y! X( ?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)
8 V! U, w- n5 O0 F, C( Aset k (k + 1)% |/ b& j# n# f2 D# m0 {3 ^
]
$ n' }4 M8 f: X) a7 pset [local-reputation] of myself (local); T( l7 E) P! k
end( a I3 m' I# B) H6 f
3 k/ q4 f1 e' C' u8 l& uto update-neighbor-total% o2 B/ X* B$ {) Z; p( H
a- D% ^5 k* l& g3 k/ v5 J0 pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" g7 @5 t2 J' }$ f8 |
' s' s7 P8 ^! z8 J$ F
) O9 \4 S, B% z- s+ s1 g
end. G/ }8 l$ o4 n: R- g, L
8 A" x$ g c! }to update-credibility-ijl & H+ ~# K: Y1 i" G6 l
' a, _% |+ O3 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。
! B0 J' U4 X% S: g' ~* h$ S1 ?let l 07 v, R3 V8 M6 x$ B
while[ l < people ]
, O* ~! f) A1 p2 G3 I( D2 N: _;;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) w8 c3 q! j0 H( v L
[' l7 [# p% `3 d" r& t
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( r; y: _* [' q6 o0 Eif (trade-record-one-j-l-len > 3)$ ^. {; z* c# Y" }# x0 L- W
[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-one9 j/ N! K K" s9 [7 c' Y
let i 3: `: V/ [& H% g1 x1 l% i5 G
let sum-time 0
. A: B& b1 z* ^3 T/ ^* F" u( @* {while[i < trade-record-one-len] y7 a y& }' n
[
" _9 b2 p4 O1 |; H2 M( yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 t. n5 N2 ]0 [+ c1 z' ~5 P; wset i1 Q* }: {, @- g
( i + 1)
+ \7 H. |% b: H5 z% f! u2 J( r]' R& X, ^$ A7 f
let credibility-i-j-l 0- n& N- N' }& M8 b( V
;;i评价(j对jl的评价), U! k' ^8 F/ Q+ z4 h( l: K5 R
let j 3
6 N1 m8 _2 z4 h7 i" ]5 Llet k 4# l$ R! i5 z& ~% d5 m
while[j < trade-record-one-len]& C7 {4 ~3 m! D# M
[2 }- n* h1 A3 x7 I4 v
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" k3 ?. v0 C8 l
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)" ?" z6 q1 ^# P' Q
set j$ d0 I5 e+ T8 ]+ G) L: T
( j + 1)
% P/ F+ ^8 h8 c& n: r) k- L u]) v+ S4 S: L: g' t5 H
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 ))
$ _: [8 l1 `; z+ v4 O! \ W7 F: e' a! K0 _4 E/ _* b8 f
" O8 o# t/ r" x% h: {; Xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; v1 ^# o0 @* P;;及时更新i对l的评价质量的评价2 f$ v3 @ R" ^" s" g) O
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# \7 j4 v* j# |" e1 ^: Rset l (l + 1)$ \- `3 S" E# z- \5 x
]* L/ m: b& `4 @/ t8 b
end2 U6 a# z; |# n" i% E! A. ?
* q! O+ A% n) N( k2 c3 _
to update-credibility-list: L1 D) ^7 R: D" s5 J u/ `: r
let i 0
) _: n; b. d0 l+ iwhile[i < people]( `) L7 c! p) G6 x, }
[- P8 ^5 `. b$ p. I
let j 0, v6 @* d7 p1 z% S
let note 0
/ s) Y6 ?7 Y) zlet k 0
5 W. P( A$ D" t;;计作出过评价的邻居节点的数目! N/ f' B4 v: Q2 U. j7 n
while[j < people]0 k% H# N6 I8 S$ _1 O6 E
[
1 p: q# D9 M+ M9 u& a1 a; x& nif (item j( [credibility] of turtle (i + 1)) != -1)
- `% V1 z+ L/ u# Y;;判断是否给本turtle的评价质量做出过评价的节点
& E. l, T) @$ ]( d8 _[set note (note + item j ([credibility]of turtle (i + 1)))
* b8 f/ m) T% L2 E/ S;;*(exp (-(people - 2)))/(people - 2))]
/ w2 V3 v: T4 B: a/ \, U7 m4 kset k (k + 1)5 W4 f/ m: U! o
]% a9 w- k) d# b$ Z( Y
set j (j + 1)! h5 ?" h1 l, e8 d# u% E7 Y. m" i
]! W0 q; I# [% w; T
set note (note *(exp (- (1 / k)))/ k) ~- v" W& ]; e6 {8 D. E/ Z Z9 ]
set credibility-list (replace-item i credibility-list note)
1 J5 ~9 D4 @: a0 q: d) c: J4 |set i (i + 1)% p6 f- f) g* q4 ~3 E
]4 w* r6 s1 ^, O
end
; E1 l' d& |% ^3 n s6 o+ S( B; x5 X" {. K& ]
to update-global-reputation-list z) |$ F& Z: a# ?$ }; K1 y
let j 0, M4 b7 P( A9 ?# }) D
while[j < people]4 o3 B+ R4 t g- Y. T! J
[
$ e. I! z6 M$ z# B# zlet new 0
, P8 `9 ?# \" G; };;暂存新的一个全局声誉; l3 C. Y0 R+ ^1 X. K
let i 0
% Z. J$ T$ B8 w8 |9 @let sum-money 0
% o& T' {8 M6 p6 |let credibility-money 0" ~2 O, K9 R$ g$ r& J
while [i < people]3 @* S6 x% T4 l% f7 e
[$ e3 D# H9 L1 ]9 {9 Q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 E; ~+ M! k+ I0 h. h. Q5 dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# U6 W7 j- @: A2 J* M* A8 ^set i (i + 1)
3 m/ ~0 m; q1 [ U* B* k) T+ y]
; q; |; i z; [, X9 q6 _0 w4 clet k 03 t6 }. `2 h* U4 f, Q: M0 ~
let new1 0$ ]2 B' E$ y$ f' `
while [k < people] t. Y. r+ L$ g0 u; @
[
( J$ ]1 a3 ]4 w2 d4 |$ e F/ z4 n/ Eset 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)9 p1 x V8 Q, `0 g+ K
set k (k + 1)/ }) S$ I2 I* j% b# T
]: N2 L$ f3 k9 J' G0 |6 [+ l) T1 _! C
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( x5 C1 [0 Z: m# w8 U$ A# @
set global-reputation-list (replace-item j global-reputation-list new)4 b& |9 S2 i+ s$ [0 {: y" Q6 y
set j (j + 1)
0 d+ c& U+ i) V9 i. u! z]
# n4 a2 L( Z7 t: y; }end: g. ~- x. M$ l' g! v& ?8 Z' x! H
* k5 I8 v3 J# c q. S9 F: F
+ G: D1 s) G- o- b* U
& [5 T* U8 |9 k6 r1 i0 D; v h$ |
to get-color
4 L8 Z0 l! f) \- n% K& C; y6 h2 ^2 u1 _/ Z
set color blue( k: U" X6 e. B, F" I4 D0 Y( e
end/ S4 `2 r% |/ L$ Y5 J* o
! m0 v3 D X5 C7 |$ h0 A l$ h* L8 J: cto poll-class- x2 t0 E) w& @* J$ M R# \+ }
end( |6 T! w2 f7 Q/ C( H0 b% ]
% b- [- z+ r* D9 ito setup-plot1' s' \( x: g5 |5 j
6 h" g) B, R0 I3 m! N v% ^set-current-plot "Trends-of-Local-reputation"1 ^% t9 Z. f' k
" z) }0 a: X/ k3 E. L$ pset-plot-x-range 0 xmax& X) i/ w: |6 s5 N" ~5 f9 T
8 c! ^4 w8 `2 V7 k6 {
set-plot-y-range 0.0 ymax" a! ]) H" F) o" C. X3 t8 }
end7 I0 u- @+ \$ P6 f- h' b7 y, {# X
: W( }* s- `- q/ X. P9 c& w4 t' i6 k8 Xto setup-plot2
7 B( R+ L0 q. ^3 V& ~7 i6 m- o& S; K9 k4 Q: V
set-current-plot "Trends-of-global-reputation"
( d& l* L0 P0 {, j f4 b! C/ T' G* F: J5 q x, f- K% f. o% H
set-plot-x-range 0 xmax5 u1 G3 p4 ^8 R) b/ V5 _$ Q
' N! E0 ?, A3 d; P. f# M+ F* ^) E
set-plot-y-range 0.0 ymax
, a3 T3 @! W3 D2 m- K7 wend
3 ~+ G2 n# M$ q2 l$ L) i& n2 w7 Z
to setup-plot3! m- W9 z' @/ l, ]( g. D7 F
1 j& R* f/ ^4 y
set-current-plot "Trends-of-credibility"% R8 c) X- I4 j' p- Y8 e, X3 T7 d
% g2 h2 s+ h" b6 A, `
set-plot-x-range 0 xmax
, h8 u3 N% m& {4 t9 R9 r9 A, b, P3 w- E+ Z1 z3 {
set-plot-y-range 0.0 ymax
( b8 ?2 E- [* Q8 V5 C, D+ Tend- E! _' I2 E# S4 e
. P& m5 l- }* h# vto do-plots; x+ ?7 m8 {8 q0 R7 i0 Q
set-current-plot "Trends-of-Local-reputation"$ U* V* k3 M; R# q, j; A
set-current-plot-pen "Honest service"# T" g) f, T% G6 d9 k
end
9 w# d1 u! E1 p! U' o% V5 @# t! h) n5 j
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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