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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; R4 Y1 l) b# Z" _0 N
globals[
, x. U# S$ n$ U% Pxmax7 d! e$ ~$ q- c8 X0 ^
ymax
3 d* G5 a s8 N. Vglobal-reputation-list4 a% i- c. { f6 I, m$ @
5 H C" R" u+ s$ d
;;每一个turtle的全局声誉都存在此LIST中
! d: \' a; q2 c6 A C0 c2 K9 Ucredibility-list$ a* _. U0 L. m1 A; L
;;每一个turtle的评价可信度
: a- ?' Y. R r- b$ ]+ Bhonest-service
' Y3 Y1 r6 b, l$ P3 i W5 U: I' gunhonest-service5 I1 @) @' N$ o% Z7 y1 S0 f3 h0 w' E( G' E
oscillation
9 Q4 M" N# d* N; j" w! ?9 orand-dynamic: \6 R4 K! [. U: v7 E& g6 c
]
7 X- B1 |0 G3 j9 n6 T3 x
4 k* w: j; o6 r! Y& [ c& qturtles-own[
8 Q: I- N6 X# ~ a+ B8 \trade-record-all& B, M* t, @/ X8 | G7 s
;;a list of lists,由trade-record-one组成! w3 U3 t, m* o" M1 @& R$ C* }
trade-record-one2 G6 D r( C2 ?1 n# R* B
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* v5 |5 K% o. V" Q
0 |7 M. Z+ o4 m% [" 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]], R. T/ |9 q+ P N3 S" H# 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]
+ L6 e7 Z5 L; R$ vcredibility-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
* t9 t/ u7 p% J1 rneighbor-total
! x+ c. ?2 C) g;;记录该turtle的邻居节点的数目9 a o& H* B9 M. P5 d; `- `# Y* N: {
trade-time/ Y5 w5 {. r( }1 V% T
;;当前发生交易的turtle的交易时间0 F, z" ^, N. A( K
appraise-give+ A3 q& }5 a5 P. ^ E) a
;;当前发生交易时给出的评价
9 m, u* ~9 y8 {2 f, B+ ~) R* ^appraise-receive
% _9 |2 r; T9 K1 s. a0 [;;当前发生交易时收到的评价
; Q( B$ J* C% N! p" j" v4 L- Q$ pappraise-time* ]" n8 I% d) K
;;当前发生交易时的评价时间; B/ v5 v( \1 z; @- x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( ?) H! C* m) q3 i# Mtrade-times-total
* v# c7 t: ]: m4 b: @;;与当前turtle的交易总次数. y. n! ]) |$ c0 |- a
trade-money-total9 C; ?' w; b0 r" o9 R S# Z- b
;;与当前turtle的交易总金额 |8 h8 c6 h6 V
local-reputation7 \, B; V( V2 h7 Z2 @" O( x
global-reputation
; F$ n5 k* g! B9 w+ M9 Vcredibility
; R$ z! F6 W5 o;;评价可信度,每次交易后都需要更新
$ b$ @' d/ Q( a; ^credibility-all
) L* G9 P3 ~7 D( g4 _;;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$ ~/ G+ ^, |* L6 H, @! q0 U9 y" W
7 n0 Z) G8 u2 A! r7 w I0 n; n;;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
2 g4 ]$ \+ {' h9 K# J; Ocredibility-one
! E: \% _* S) J! F. D/ J. 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8 X4 b3 @0 l5 Y6 z+ p( G) G) u
global-proportion: X1 ~; l+ S' g7 N5 Y. W
customer
3 \3 [: @ R6 M4 T5 b: M; Dcustomer-no; J* k" v% r f! c6 t
trust-ok
X% l Y( O) u5 E4 Mtrade-record-one-len;;trade-record-one的长度
( F: m B( P0 x" _8 G8 m' ^]/ m+ S2 j2 f5 n7 g+ `
2 ]0 ]& N3 ]& f; G;;setup procedure
9 U) W: w& X' b
) f8 P7 i2 l, H8 C" cto setup
# p, w3 [" B: X: \& v5 _$ V: `, F& Z
* {% l* c4 H2 s2 w; u( Zca/ M! O, E. }% r* n9 M/ ~; R
3 a! l: K$ n( {3 Uinitialize-settings& z3 @$ j' F, I0 }
" y( t: E0 c, p0 L3 @crt people [setup-turtles]
4 H7 T5 ^ o5 M1 ?7 |
5 m3 y, {8 H. Q' y3 Y! d6 Yreset-timer
$ g8 m8 s4 Y' [0 m* ~/ h
+ H1 r: B: N' F1 H; |poll-class
9 k1 X( w. X$ W% r. a. |
( e N/ Q: W5 D2 G3 D- gsetup-plots$ V j+ ?3 D# u' C, W
+ V% ]$ K: j# h b4 p4 j
do-plots
& ~: V; G: v( L7 R; S; x7 Iend! q- p5 h& Q5 G4 k A
9 _8 m. ~$ A; c4 Rto initialize-settings0 y& ^+ w k/ H" A% D0 N
! c' r% S. E V& `0 N& qset global-reputation-list []
" I! [3 @( x% j; {9 U. C4 p; D J- ?9 s, E& n
set credibility-list n-values people [0.5]
/ P* ?, G1 \) F: c
# b0 {; R& n K# G" Q: L) c) t; Aset honest-service 05 P; M# q- o8 X, y, w: A
H. Z" H( _0 }$ [8 N. Oset unhonest-service 0
+ X( {2 G/ w7 z
7 ]. O4 V/ @6 s9 G7 A* P! f- Vset oscillation 0; N2 |( @3 j4 A9 a* w7 X8 M
6 }" o" n# S( }
set rand-dynamic 0$ O5 a H `. Z( m' f2 M) `1 P
end
5 ?. \$ t: L( {5 K9 m5 G/ o: a/ J9 g7 A0 L; j& @
to setup-turtles
8 \8 C1 ]2 S2 @! |7 Y7 m- h6 c* Wset shape "person"
! b9 q1 R p! _! M4 z2 Fsetxy random-xcor random-ycor& W5 @ S+ c! m0 ~4 n; V1 `
set trade-record-one []
5 \- r& n( T" K$ E; ~9 f/ X! H" p
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 {8 K0 L) w b- ? O! L3 N+ Y# f' B1 f4 ?. S
set trade-record-current []7 h& g3 u+ b3 C; C# }
set credibility-receive [] X( j6 ~! a2 _
set local-reputation 0.5( M) P; K$ W5 @7 c
set neighbor-total 0: X+ a, s& w" X
set trade-times-total 0
) ?( I. k7 _+ Y! k( fset trade-money-total 0
- S; T/ v* k8 f! wset customer nobody2 }) i! p9 x" D' J9 A; a: u
set credibility-all n-values people [creat-credibility]
* N5 H; f5 a" c' n* o2 L; Z" zset credibility n-values people [-1]6 {8 o2 r5 q; ^4 h$ Y2 `
get-color
`" a" Y6 A5 f! H3 H4 C1 w! a6 D3 `
end( [2 p! e5 O, z4 d. N
% x, o; y8 F* x5 f/ b% {to-report creat-credibility, V* F6 o c+ ]" t5 n
report n-values people [0.5]
) N: r/ H% x. ~2 R# L8 v% f4 ~5 \end
" C' ^7 H( p$ X: ^; o) `7 p$ ?" X( A0 N3 _! b+ C
to setup-plots
0 D% l; X# u* P2 V7 R- {! C! e, k
' i5 n' i2 t& v7 I% Lset xmax 30
( } D' L5 S4 O4 B
# r$ S1 i) R1 }+ P2 A$ W' Vset ymax 1.0/ S3 v9 n$ W2 [6 Q
7 g/ o( W2 t' Q) ^4 ^. D) cclear-all-plots6 R4 n" c0 j4 \ O: H8 E0 y. s
% V, B2 {+ W3 v h( c
setup-plot1) O0 s0 `6 Y, E) A
1 q' T3 K7 {6 H! Fsetup-plot2
# X$ l7 z3 c8 z0 x# E/ G" ]
5 n! D r/ e: e* w4 D6 e: ~setup-plot3; J& U% Z3 Q+ U# d5 K
end( @# S9 X6 i+ P; B) @# `
5 [1 t# Z+ K0 v4 l5 q# X1 [% E;;run time procedures
9 w4 j8 Q% R/ B2 T$ z8 @ t% h1 D9 g0 G9 {
to go7 }. G$ F, L' l5 N
4 l" h) T1 ]( R* y6 ?ask turtles [do-business]
3 y" ]- S" l3 l0 u' ?' Xend
- e* t) C: O. @
( v6 j! E+ w: Q! Dto do-business
0 e6 x7 W( m# o
) E- J. J: c8 I9 ^# A# p2 C: N7 ^8 F0 D0 U8 y' H! H. U
rt random 360
/ K8 ~- U$ P. ^2 \; ]+ m% f. d
$ y C& ]$ r4 H' O4 L) d8 ~* ]) ^3 ~2 k Wfd 1
% _* e. [8 \. P) J5 w; o2 z% g. {4 [6 d, ]
ifelse(other turtles-here != nobody)[
* c' D A1 b" @6 F n5 @
2 w$ u! C! G% C& W: ]( I. vset customer one-of other turtles-here4 c5 F% p1 ?: e& K& w/ V8 M
+ a& a& L8 I4 W7 u- u;; set [customer] of customer myself' J3 C0 E$ p, U# n4 {' b1 B
! } b' \6 v. M4 ]
set [trade-record-one] of self item (([who] of customer) - 1)8 t3 B# I5 j! D x( o- r
[trade-record-all]of self, L0 x& u( o7 T% C0 I% \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 k# h$ A5 D& v6 {
" j1 G. t: U' e& f% p0 iset [trade-record-one] of customer item (([who] of self) - 1)( }! H: _' R4 v# N( N, `
[trade-record-all]of customer
a1 n$ C* W5 i1 c
! U8 w( b( \+ O1 A& B$ z" O/ Wset [trade-record-one-len] of self length [trade-record-one] of self& m) X. U S: M) I- ?
) |6 X! b A1 y+ e S& q' ^set trade-record-current( list (timer) (random money-upper-limit))
0 |( k; l: u: r. S9 M3 {
0 M3 P7 }9 Q M& Q+ T0 Z) c0 C4 j Uask self [do-trust]
: I7 X& c7 I- Y3 }" ~6 n. m) v. h;;先求i对j的信任度- W7 h) @6 V* G# T+ ^4 m
: }+ s' ^: P- E6 `; X& W4 S+ q) U
if ([trust-ok] of self)4 c( a0 `# I M5 K: {9 U
;;根据i对j的信任度来决定是否与j进行交易[9 V# N& v2 p4 b
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# E" @8 Z! @% A( n
9 d. Y' W& H F
[
& F; \- J" s2 }
& Q7 ^( f$ a: P# n; Q `2 hdo-trade& I* O V4 H2 E1 u" d/ U9 r
3 V* a1 N7 q; Y% R1 k4 d( Z. ]
update-credibility-ijl- y- \% ~* i s2 j
' N' C2 n7 Y/ P4 w9 `
update-credibility-list
) ?2 S. D9 [" B6 R
+ G" _8 a) i+ }* G! k$ s( f- l& V
update-global-reputation-list
- [; f4 T: H* ^* c- G4 [: b5 v
! p' a7 S+ J& F u2 Lpoll-class' d% B# O1 @+ M( |. J
- T* O: x$ |( G
get-color
4 Y _' o1 c+ N5 H
$ H" [- _; F2 t$ q: x6 W& B0 R]]/ y5 u) q0 ^1 }! M/ V# P
5 g ]5 a, }' l d;;如果所得的信任度满足条件,则进行交易9 c+ p: j( g0 O- }3 b( k
6 c1 L6 ?* ~0 A* z7 ?* \! j
[
* g5 }' ^ `: [% W
, |" r$ ^) L9 Zrt random 360
" f, s' R- K+ e8 r% d
$ T4 ]7 T! w, r- O' A) ifd 14 K4 r3 p* i7 n
0 e( R3 y! i) X+ ]
]
$ P) v$ G q, A6 v
/ V1 z: s& `# N& Y: t$ iend
E7 ]" o2 ^* W
2 e2 H) T$ r' v# r/ nto do-trust ' Y5 Y. w8 f6 \' G# [/ F$ \& r' P
set trust-ok False& i3 H& T; w- c' Y4 @, z5 c. T' u; B
4 H# V: b, Z6 [( o' C. [
/ w. g; g4 Q' `0 _let max-trade-times 0
5 Y- d( X$ L0 R7 ?5 e% ?, jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 w: {6 h& i% v+ U% I9 e* e5 i+ i
let max-trade-money 0- K. O# C( U; X! R
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ D k) n% L6 \: 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))
/ S- o: S1 G6 u& q; w
1 L L- S6 @4 v+ f. j8 w7 O( H# j7 z* b/ u9 s9 }; \
get-global-proportion4 F& p' M& g k! H9 L7 y: _
let trust-value5 ]$ z0 R7 u. [* o
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)
% Z, S2 X; u$ S* J4 B2 u3 _if(trust-value > trade-trust-value)
& [- n; s% w$ l8 ~. ?[set trust-ok true]
# [; B, I2 E9 d: Kend" E+ a2 x4 X1 r4 L1 P8 n* Q( m
& a+ p n4 y& Q& a F& Bto get-global-proportion
8 N- W: Q- s9 a6 tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 m7 z2 \3 ?5 x9 Z: y[set global-proportion 0]
; `& k( |( O4 |[let i 0
& Z/ \" S) z& |3 s& ?- [( dlet sum-money 04 x/ q8 |7 ?" Y, }. ~6 f& n p% W
while[ i < people]
( N/ f; m. c/ t8 p/ W[
! c$ h1 N* n6 ^2 U# |) Dif( length (item i
1 Q+ {/ l8 v4 `7 Z[trade-record-all] of customer) > 3 ) |8 a9 a. Z8 i/ B! Y0 W
[
" n( L2 `. Y, |! \7 L3 lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 y( m2 h7 Z$ q4 v/ n! X
]/ u% }/ Q$ l4 R0 J) l7 ^ s; k$ g
]' L: A" a; G1 o: g$ h
let j 0
( R3 ~1 o p5 u7 |+ e3 Olet note 02 q9 ?& y5 j! T1 H( r
while[ j < people]0 z& z) c# _6 f4 y. W0 ?' ]
[: e! y' v0 R; C3 Y+ z
if( length (item i
6 A: L9 m7 z+ b# Z[trade-record-all] of customer) > 3 )
$ P2 X8 U6 a$ s3 q" w) [( X[
% F. h+ a- P. M) {* zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 N! @! Q3 X0 i3 P[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- i h7 C! ~, c3 P[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! t, T% {& w/ F" V! \ }* a; G
]
2 i/ |& y' G) C]
) n) Q3 r/ K4 e5 Y/ p4 eset global-proportion note% m9 z; O( D& M2 F; n) h1 `
]
2 Q/ \/ F% F) \7 Oend
4 M3 N. k5 q" h) _
s8 [1 ?9 ~; O) Lto do-trade
1 \- X6 h! Q, E- Z, z" U2 u;;这个过程实际上是给双方作出评价的过程
T1 O& r' |; |8 ?& ?1 F# ?3 Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 v* t/ R- Y- D- I7 a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, {! V1 Q$ Q" O, ]6 Q! b) xset trade-record-current lput(timer) trade-record-current0 ?% m$ h8 o7 e" n- y/ O+ q9 `
;;评价时间
# @2 r( v* H1 m5 r0 Y Fask myself [+ K& Z; }! o+ u& y5 s9 S' ~( j
update-local-reputation
) e7 }2 ?/ @, zset trade-record-current lput([local-reputation] of myself) trade-record-current
& N3 P2 r8 p* S& H]$ I3 s- e7 q: {0 u: D
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 u8 k% U+ T+ l' M! |" g
;;将此次交易的记录加入到trade-record-one中& V0 z( B8 Z* e D
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! ]' \% j9 E6 ilet note (item 2 trade-record-current )- b, D6 S1 g. Z/ R. G4 f4 \
set trade-record-current
- `! h# ^& V3 S5 W(replace-item 2 trade-record-current (item 3 trade-record-current))
! X8 s$ k$ g1 f% uset trade-record-current
: k E, u. _6 Y4 o! S! C(replace-item 3 trade-record-current note)6 u1 K0 C/ O6 f/ E1 ~
' {: c0 z6 A2 i: @/ \* \. w. r( b5 r9 j% H+ n; f0 k
ask customer [: K4 [4 X- c( w5 I9 D. P) b. \7 L
update-local-reputation
- e6 a. q, G$ F( D! q ]set trade-record-current
" t4 o- m& |) Q) S(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! \+ ~( ]( l! X t! }: A
]
# I, E* I: d$ X( v! u2 W; ^
6 P1 O$ o# a/ x: I D2 f% O/ V# L7 c) B3 v4 b$ S
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ g* K/ c4 y7 V2 C6 ~7 M
& y( a: e% W. n3 c" pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 o( Y J) j) |# Q! m% R1 _ e% `
;;将此次交易的记录加入到customer的trade-record-all中3 Q% ], l4 T: K
end
; p& d7 D' B7 q$ j) M) d! q- j, i w4 F( T" F" _2 [
to update-local-reputation
1 d9 @! Y; p2 [# U4 ?+ }+ Mset [trade-record-one-len] of myself length [trade-record-one] of myself# ]5 f; }! C' a0 ]* C8 ? N a( C
, t/ W1 B# I9 N2 b% N6 b
" ?* i4 Z3 ?) A3 M
;;if [trade-record-one-len] of myself > 3
+ W/ ~/ C1 i/ M( `$ |- Eupdate-neighbor-total
* V2 d h( p+ }/ F* ? @! C# m;;更新邻居节点的数目,在此进行
2 D! ]# Z1 `- d7 i1 ~3 Llet i 35 z7 J& b* V6 y# t3 V, O9 c/ k
let sum-time 0
; _3 Y- K: L, X2 X+ L( }while[i < [trade-record-one-len] of myself]
, i& s$ t) |5 a* h5 G% J$ T[
. b0 H% b3 e9 r5 I7 Lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ t) I9 d$ d3 m, D4 ]! t% `set i
% V/ O& O! u* I2 }4 ^( i + 1). T; M3 n+ \' O
]
/ O9 `0 @7 H- Q$ A3 E+ O' Plet j 3, A; b0 F6 D9 [$ n% ~5 t$ ?+ v
let sum-money 0
- U; k: G; x' h7 T/ wwhile[j < [trade-record-one-len] of myself]$ s8 u/ {. N# q/ l5 e
[$ ~) y5 |- F9 v& b
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)! q7 h: `, u( V" j" [$ l) w
set j
6 E" T8 C5 p" {# R$ Q( j + 1)
! F4 b- x! S8 ~5 t]# u3 d7 [- g8 p8 F1 k1 v4 i
let k 34 V$ }% u1 C- l# B
let power 0( _: \( t8 ]3 a. D
let local 0; j- P+ q2 D' l& z! b9 [9 n( O
while [k <[trade-record-one-len] of myself] Z5 u/ M! ]- Q) A" U7 t) `
[% m% A( [8 X$ Z
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) 3 G( Z5 ~6 q& `. }6 p, D' w
set k (k + 1)4 k* N* G8 \; q, D6 _* L6 m
]/ f# L3 I' d5 s9 t
set [local-reputation] of myself (local)# a! k6 C$ B. i; b7 |' R
end
; o/ Z5 \7 ^, d/ I1 d& h: q3 T, ^8 e0 o& o$ r
to update-neighbor-total
" C3 ]: Z; }+ T, }# S5 q5 A3 S/ T3 X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# D7 W( l4 |& K. p- {1 Y7 z9 S+ a
$ s J5 i8 f- f9 v/ j7 B2 v
1 D+ J( ?& ?; Z
end
& }6 a8 f: O6 |5 R. y8 C ] B; F# S4 ]4 t7 x, i7 @" E6 [2 r
to update-credibility-ijl ; o+ N( P" {3 T6 o. m
- H1 |5 v, q7 V;;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。
7 X) m' [' A! Ylet l 0
1 ~- B+ @# c1 ^! twhile[ l < people ]
, ~6 w0 Q( z( t3 a;;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 D4 t/ a7 @' c- E4 l( H* B0 h[9 ^3 ], p0 f; g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) a" J4 t v2 r. h% q1 J; c
if (trade-record-one-j-l-len > 3)5 g- L) h2 N3 e
[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
+ Y9 p% U' O# W4 u6 y8 d; |let i 3
. D0 V1 V5 H5 I& o# E& N/ l+ Wlet sum-time 0! ]' Y6 Z8 r* m+ o
while[i < trade-record-one-len]% P0 Y6 X* K$ h$ f8 z4 g1 z
[
" J: r; O2 M4 R% k6 fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& }, v2 Y) u8 q3 c% v3 Fset i
; M$ }! e0 F- q' l ]( E7 O( i + 1)" V- y7 a1 G2 J9 z \
]5 {" Y2 @! @! v# \
let credibility-i-j-l 0- M! d/ ~( j; `% |! r5 c1 {7 n7 }
;;i评价(j对jl的评价)
: P; t6 q) b3 b4 m, ylet j 3
! q2 S+ ]9 X' l: e; Clet k 4
$ o3 O# c: R$ ^8 T* F- s5 O$ Wwhile[j < trade-record-one-len]8 ^7 H; o2 a) n9 H
[- x/ Q5 ~3 ], J0 J
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; i, T7 g% q/ d5 T, |8 o7 {3 z) O
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 r q1 B8 b4 [1 @set j, T- j* e6 \6 z* Q! _3 s9 H. ^! E
( j + 1). e, C. n6 U; J4 ^4 b9 S
]# Q( z- X8 M7 m# X
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 ))/ ~0 _7 B& J, ~* G3 I3 Y
4 t' p; m- T( I: k$ e
/ `$ K- X, a7 T. M* ~
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! @6 q+ |- m9 w* @) n, N;;及时更新i对l的评价质量的评价# B3 u5 W, z+ }& c( F2 [
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; Z# ` H) D; b! h/ Q+ x4 mset l (l + 1)
% v( }; ~# T% x]: T* j# n7 U/ }+ a5 [+ |
end
7 ~6 ~ Z- A8 P) K, E0 p: V# V. b, m& t: U! f# r' r
to update-credibility-list
7 b7 |* W7 w) U0 u' Nlet i 0$ u; M" H5 _1 x9 c" `, D
while[i < people]
- a- \2 T2 \2 s. k' c. l[
4 s. Y! r. e' z1 S# r/ `$ j+ o) \let j 06 n/ L5 N" Z/ P1 u1 S
let note 0
/ O- q9 W# A `' V; Klet k 0: P. w" D3 i9 B1 c5 |( N
;;计作出过评价的邻居节点的数目
& R5 v$ r2 Q" @while[j < people]# P X3 m9 E( C4 O
[3 T$ O, b' C n2 N; U% Z2 T
if (item j( [credibility] of turtle (i + 1)) != -1)5 ?; P8 |: y- T- C+ k- k1 ^0 _3 [
;;判断是否给本turtle的评价质量做出过评价的节点9 T1 [( ? L* J4 @2 j% ^! w
[set note (note + item j ([credibility]of turtle (i + 1))), O8 O6 k2 i; g) C0 ~1 e
;;*(exp (-(people - 2)))/(people - 2))]
6 s* V H/ Q8 {5 a% r& aset k (k + 1)
5 z0 `8 D# g1 v X3 b2 s0 W w4 i]
$ L" Q5 w N( T9 k6 e$ Vset j (j + 1)
0 x) b. B9 P# y; t; {* c; c]! X) s2 x$ k2 [1 U
set note (note *(exp (- (1 / k)))/ k)
* H# n! r0 A9 R; eset credibility-list (replace-item i credibility-list note)
0 b2 h9 x- V7 ]: x( t$ \set i (i + 1)
5 H+ o. f4 V! u" []$ v3 J% T" B4 f9 f' l* S0 I
end
( W; E5 R0 K, R; t8 {8 [- [+ O7 p5 k0 t' M3 h
to update-global-reputation-list
3 A, r% N: D6 }( `- alet j 0
2 G# f W. ?. _! rwhile[j < people]
8 i7 q) G4 s* b' o# m2 E[9 Z& k4 m: X8 ~3 ^2 S ^
let new 0
; f" l2 q8 F' U& _6 V& u* T;;暂存新的一个全局声誉) `# S( K/ _; K
let i 0/ b5 I! a: |& Z( Y/ u
let sum-money 0
! U! e3 p: E& o: q. `+ ]let credibility-money 00 }6 p `6 C9 t
while [i < people]
( h6 k. ^+ w [[1 C' H; F) F" a# E
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% _" _/ ]: t7 D3 u( w5 hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ c3 D2 k' H# `) Hset i (i + 1)4 k- f) v3 ]) W, U( r
] D1 K* D+ E0 p
let k 0
- ^0 R* \% \6 |+ w. Ylet new1 07 }* c! C$ t' H) O1 ^1 w8 p7 S
while [k < people]
; ~/ a/ U4 i. J! k( o[
( L8 X* y1 Y& o! Fset 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)+ ^( w6 H5 z& r0 f5 s: G# |6 ~
set k (k + 1)9 u1 G$ {! U" D7 C1 N" P
]" L, L3 P! t* y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 p$ S2 n8 n, l- f5 ~: W
set global-reputation-list (replace-item j global-reputation-list new)
/ n9 {' o/ Q* Dset j (j + 1)
4 k; H/ p$ K. ^( d% }]
5 b! |; _( ^9 r0 Gend: J/ _( c- F4 f2 g
3 M$ n/ _9 n. H4 B4 t
) q4 ]; q0 w" o) C* G1 m
- P+ l! K o- Jto get-color
3 c, h/ u _' y6 c
6 T; z O% @+ Rset color blue
$ p( l2 }. ^. j6 B( Pend: n- H# Y" @7 g; x
~9 ]; q- D l* r1 x+ l# L
to poll-class0 t8 \+ m- ^$ K, X' z! U
end! L s! t* J* Q. _
- T+ p% Q% U( S8 O0 Fto setup-plot1. f) C* ^7 k2 T, S' J- K
0 q) H" V1 E1 m0 K& `2 V" K) l: Iset-current-plot "Trends-of-Local-reputation"7 \0 `6 H2 \8 O* i4 t
0 J8 G, g; Z( r; j. J- V8 o3 f
set-plot-x-range 0 xmax
f3 [" N [3 T( {) B& O' x
+ C% K. ~( x6 V0 E0 Iset-plot-y-range 0.0 ymax& C4 f, j3 n( a4 t9 e
end3 j; |' R# Y$ c+ ^9 ]' t8 M5 t
' C: b. A5 J+ x( N8 u
to setup-plot25 R: U( D7 C& O- N; j5 F8 w$ R
: m4 [8 A9 K( D- Y5 I/ x
set-current-plot "Trends-of-global-reputation"
* r5 A1 R, m1 B1 M) _" _
" v; w8 t, W4 y6 Y0 a( o6 `9 M" e- Hset-plot-x-range 0 xmax. M" I2 L! O3 `0 K5 d k
# C$ p; v) H6 i8 J4 oset-plot-y-range 0.0 ymax3 t0 z) d5 \. V# ~9 \5 O
end
1 T N' b5 q4 N" P$ O, \4 S& g8 ?3 _7 w: b7 h) \, S8 Z+ a C( N
to setup-plot3
8 c8 |: [; `$ \1 P0 h& B4 B- v# u9 @1 I/ {
set-current-plot "Trends-of-credibility") u. V! i8 `# n7 _4 k
9 c$ G/ w1 E& B2 N$ B; P! n
set-plot-x-range 0 xmax
6 E c& e6 b: D5 `; e" J4 f/ V, z
v' I( ?% L. Z; G7 P0 e( K1 t5 s. }set-plot-y-range 0.0 ymax4 }) |! F2 W3 v' B
end
% B3 g2 E: d9 Q* V- [( f! ]. q# s, i) Q2 a
to do-plots
9 h0 N! G& ~ f3 Y5 m `set-current-plot "Trends-of-Local-reputation"
& v' S* q4 k/ r8 y- p; G1 ^set-current-plot-pen "Honest service"; M% h" d6 K, |5 ]+ f
end
, _# r5 b; f& Z" z. ^! H |& l7 x2 J4 `4 n& H, I
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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