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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' V' d, u* V6 ]- v1 h( c
globals[ w' W$ a6 }! s! [" v& h% G
xmax/ D/ `+ Q7 O$ u) ]
ymax
# ~6 [, B0 b. x# f+ Oglobal-reputation-list: R9 l( c6 f% l8 h- V) ]
[4 v" h9 l! p. H$ d; V;;每一个turtle的全局声誉都存在此LIST中7 ~) K* l2 ?8 j3 j8 Q
credibility-list: g4 w' h; _) t2 \9 `9 d R6 O4 H
;;每一个turtle的评价可信度" k. ]8 v% `8 T d7 t, A: S
honest-service. [- [7 ~2 Y+ j9 I. q# @
unhonest-service, D1 _& X3 e* b3 F; t$ r
oscillation3 |4 v! D( M" }9 c6 R
rand-dynamic
; a& j& E7 f( B9 c]
2 R* n' |. i( z7 A1 Q- @( E6 i: y# d8 N& @( ^* ~3 P
turtles-own[* [! ~0 t6 \# L9 I% z5 W& y: }
trade-record-all
5 C; W$ @$ E; n+ d1 i;;a list of lists,由trade-record-one组成" c' a) C6 s. f D( M
trade-record-one
0 {' z o0 k7 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( c+ [8 v1 S% B! W
- \" K& U/ C# ~* s' x @& l2 x; P;;[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]]
0 y. r5 Y# i5 Y) O) Ftrade-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]" D4 H X4 M9 v, i' _1 q, Z
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
6 I( @% i$ I- Y, p5 E' tneighbor-total3 |1 e+ {( c: l' C
;;记录该turtle的邻居节点的数目+ Y) n) k6 q' m" u" g& Q
trade-time
- k- `+ {- g4 v+ y* f;;当前发生交易的turtle的交易时间/ n! U3 a9 {2 X/ O0 d
appraise-give1 S& A1 E5 ~' m! N! w0 V. x
;;当前发生交易时给出的评价
& e* _2 s' g- h8 k) X' O% s2 eappraise-receive- N( l+ O( v) H! a4 \
;;当前发生交易时收到的评价3 b( u* o8 J9 U2 i+ Y
appraise-time; L6 N, M8 e1 j) J C
;;当前发生交易时的评价时间 i8 ~* f" K1 b
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) Z) L$ v+ A& N6 z9 l: ttrade-times-total z) F# J) i! h2 ?1 R+ G
;;与当前turtle的交易总次数
% i1 E y1 J2 |trade-money-total
' ]) y+ X" C, E9 p" Y;;与当前turtle的交易总金额+ i+ f, U4 ~. c% Y6 g+ [9 I7 i0 ]
local-reputation# B: U% Y: [( n9 b' R
global-reputation" E' V3 e+ Q5 X6 g
credibility8 C- ]' l# c' V8 {1 y! t: q! K) k
;;评价可信度,每次交易后都需要更新8 c+ w) D8 j* P% O0 ?: R
credibility-all& B6 C9 K! S: k7 K8 u+ M
;;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) i. Z, d. k" l/ B: e
3 O. c* K. s o0 ^
;;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. j; e- [% v- T0 Y8 ^& Q5 `
credibility-one u7 M+ G2 C, y! X }. 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
0 p# t0 O8 f' C3 u6 yglobal-proportion
! P5 \6 i4 V1 Wcustomer
' Q* T2 `$ B I* t6 n# u& i6 j% |# zcustomer-no& N4 A; r6 W8 F3 w. b7 C) Z. F
trust-ok
; D8 F) x8 N- B$ ctrade-record-one-len;;trade-record-one的长度* D* Z \3 r; T3 w
]2 {9 [9 B( y9 k8 R% d
; h9 T/ `: p1 }1 W& ~! \ a;;setup procedure5 ~. y) {9 l' H* q& u+ o% w* X
3 x, _" u9 u! o: ?+ O+ T5 A7 }' Bto setup6 Y+ e" T1 U3 W; G$ Y
" x, L4 ^7 c3 J2 Y
ca
* e8 c1 ?& A' i- v8 Z) Y/ {2 o7 W: \- z P" k8 r$ c ]( O( }
initialize-settings
( T4 a0 n. p( L+ d% `' P4 X a5 }2 O; S; Z) z1 S! B( K
crt people [setup-turtles]
& r* a* [0 m' @# j' L
! x; l U3 V5 q8 Hreset-timer
3 ]9 ^" S# _ |( a$ \; B* |8 N2 l# Z
poll-class `. b0 e1 Z, G9 ^, [
" L7 j2 b0 X( S$ y
setup-plots( _ p# `' c- V# }/ }& u7 G
2 t- Q+ }$ A N1 a6 n2 sdo-plots
$ Q [# I$ z7 I2 J% S; ~5 `end9 }; p. ]5 a) _# S* T; E
! S$ J* a8 T* e) ^; l1 [, X8 { q
to initialize-settings2 g& ?5 z; P j& M$ @: v
" S" n, H! u" D6 v
set global-reputation-list []* {1 Z2 ]5 }# p
2 ^$ o) ^ s+ k+ \- [set credibility-list n-values people [0.5]+ k5 N: V) N; L2 L4 g
8 ^* _3 F! y) \$ M! o1 u/ W5 _! n
set honest-service 0
% Z4 k M+ |- e7 o( ^/ t; L( E) E/ [5 u" e; I6 l# X
set unhonest-service 0! J" _# o: m$ j# }% U; A
) S) F$ P/ w. Y; ]8 \+ @: J bset oscillation 00 s7 D/ M4 ?9 x# W7 i/ O% B
7 A1 d& y! t& t4 a4 X: M! H: z
set rand-dynamic 0
9 f; d8 b2 }8 [end; e$ c7 v1 ~6 u( T) i1 W: E. w% M9 a
3 v1 ~, D: R6 M$ q6 X1 b7 D
to setup-turtles
# P( ]. O, r0 Vset shape "person"
# m- ^2 Z) {& }" M9 I! B" osetxy random-xcor random-ycor6 M' X( D/ Z3 w5 L0 r2 k
set trade-record-one []% h% l: [# t1 p
( R8 x7 @0 Y+ j y0 Wset trade-record-all n-values people [(list (? + 1) 0 0)]
% d: t9 ?0 d' q% U1 m3 i2 ]/ k! a, f0 l* X8 ]# k) K& S
set trade-record-current []+ v/ J. P. g+ q( k
set credibility-receive []
( ?$ r/ {% }# c3 s" i- e7 U3 |- }set local-reputation 0.5! |% I3 I8 Y2 N, W
set neighbor-total 03 K6 _$ ]8 v1 {& Q# E. v+ L& R
set trade-times-total 0% L9 R% D+ {! u9 w+ {
set trade-money-total 03 z8 ]6 S: D; D5 S2 j
set customer nobody
6 e( D, e% W" a- s2 Vset credibility-all n-values people [creat-credibility]
9 G9 M2 g$ q5 L& O- _ Yset credibility n-values people [-1]
% u1 m8 n& s% D/ O9 w" Z5 qget-color
# \; f, I) [' M! L1 y+ g
0 i8 p8 E- ]2 h( G& l9 [0 Eend
3 \8 I' U9 i6 H& m) I) @( g
! _( E7 e+ s. x7 N6 J# b& g5 e+ vto-report creat-credibility5 b" w% _) ~9 w I
report n-values people [0.5]# O" q C$ ?( Y$ d! K
end
5 w4 l$ @. a; P- M7 g, d% v3 U' s3 P# c( l
to setup-plots
' {3 f, T# r: Z% C T; P- d. l6 H
set xmax 30
( H4 l4 U: {: k" e9 K1 V/ l
: V+ x, }" ?7 p+ Gset ymax 1.0& }( T( o/ ?" F" Z; p
5 y1 n q( p7 c0 Q! jclear-all-plots
2 |" D# r0 h) [2 F( U8 n( \5 _3 {' |0 K9 o
setup-plot1
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setup-plot2
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1 {9 Z% o+ M7 P+ W, f/ j5 H* Isetup-plot3# j2 R' f0 m' r. c% |1 [
end" B! o P5 I# J4 \6 d5 s* H( h, `* h7 t
8 Q: i3 l3 ?+ E! U, U; T
;;run time procedures& J5 Y. a* y9 \3 F' X
# d* m+ D! E2 Q4 L. Nto go) B3 F4 }. M4 r, ^2 e- m
0 e( _7 b P- T" d8 J6 _& Cask turtles [do-business]
9 p! e$ G$ H% V" ~* Bend2 ?/ K) |2 v2 `: }1 ?; d4 Q
6 C* w: w0 f6 s/ t7 Zto do-business ) h6 x5 h+ I4 n3 Z$ D! H
0 s+ W6 H) q+ R5 A* ]
- f- ~+ _+ M& r( ^, M
rt random 360
9 @8 j4 V5 J, N2 n j7 b' x
) r: Z5 J4 H" J* U% }! s- nfd 1, _, T3 a: G( b# e7 c6 Q9 n
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ifelse(other turtles-here != nobody)[4 ?6 y- U2 P2 Z' h2 m
2 ^' W" Y/ g) D+ t
set customer one-of other turtles-here8 G7 L# A$ F. `+ ?' ]
' y4 Z, ]" X' m9 o: p;; set [customer] of customer myself
0 S3 P) W, E+ |/ D2 C Y# _6 }# C6 K" D/ g( y6 L5 G4 j; R
set [trade-record-one] of self item (([who] of customer) - 1)
' G) Y3 |* e4 f[trade-record-all]of self7 M4 D% X; g$ j, y5 j& \; s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 a# L' K" q( ]- A/ l; @
2 Q9 r4 E/ f$ k& C/ y" o) I
set [trade-record-one] of customer item (([who] of self) - 1), v% E+ {0 `" g6 |& [" A. e
[trade-record-all]of customer5 R c( h# X3 Z9 G! o8 }
3 h, o! I9 R: Q! v
set [trade-record-one-len] of self length [trade-record-one] of self
; x) t# b1 u. u M C# {% Z' S; b: p% L/ l4 Y; B1 g
set trade-record-current( list (timer) (random money-upper-limit))' Q9 P& {( D- k9 B& v9 E
# y, q3 W0 @! P! fask self [do-trust]
- b |% U) A3 l/ ~6 L# F+ ` {/ K;;先求i对j的信任度
U6 J. L. z1 z2 N! @% z, k$ [3 P% i1 [) X' C+ r5 o+ a4 T3 B9 C% |
if ([trust-ok] of self)# h8 J" z1 q9 f4 N8 h% J. c
;;根据i对j的信任度来决定是否与j进行交易[0 _# w! V3 X# D1 b+ l. |; N1 [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself g: `0 D# S- @8 E/ j" G0 \* v
2 _6 O1 P) \3 n( q9 e* S
[
& ?$ x6 M/ D0 Y, a* I5 L" K' t; o; q
do-trade
: s3 [# o7 V4 i
- c/ C7 Q) ?9 Mupdate-credibility-ijl! Y- L- [1 X/ C, x7 ~; {
% I& |% u$ Q1 J0 G- C" aupdate-credibility-list2 }0 c. i# g& p
8 {/ r( c6 m# y9 \2 j1 D* k; [- h6 [0 C7 a! W5 K) g! f2 a, @/ o+ A
update-global-reputation-list0 x4 J c7 b( z, j# o& P4 y
6 P' I3 F7 t" H) o2 I6 u; `6 G6 h9 q
poll-class" A* A+ f3 \2 K0 ^* ~
7 n1 P( O6 b& r) n' }2 `
get-color
! R# _' d8 g6 Z
T% U; R! L$ g+ r) v$ T7 ]& W]]; B( Z1 y0 E' ]
* J8 v. `$ d8 l1 F# I [1 O
;;如果所得的信任度满足条件,则进行交易
j& a3 U7 I- W8 D0 D! i/ Q: w+ A( x/ p: o: {! H7 s' T7 M$ T/ a
[/ @2 v/ ^ P* q- ]2 |
( Y# i7 z3 g! ?2 i' Krt random 360
) J0 r6 a H) k' p3 y/ A+ R: l% v4 D' d; }* [- D1 N) V9 n9 _
fd 1+ A+ [+ v8 H; |7 w
& O& z- f5 p$ F1 X9 s
]; M9 x; z) l1 d7 |1 _
7 x* l) n9 O' send. ]4 [8 P) ?! y# X
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to do-trust : l2 a. a A8 {* x4 d! l
set trust-ok False) d0 {; Y0 W9 a* \7 s& f8 P
' H; _0 }! T4 W C, W
$ A' S0 T6 C( f% clet max-trade-times 0) h3 _3 n, g' H" e9 ]- P* v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 z' C: q. X' Q: ]/ wlet max-trade-money 0
d8 b, @9 @% q, L7 A) Q7 D3 F8 cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 @% Z# n$ ]$ F( ^9 klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 f/ M9 m7 W5 v5 h
- w8 ~0 M1 o/ K5 O D, b; a' U6 X4 _4 t% p3 Y! Q4 ]+ w
get-global-proportion
6 R, P+ V. e$ U; Plet trust-value
. i; M A+ `6 K1 Plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)7 C. n3 i- n8 W y+ |) E2 Z
if(trust-value > trade-trust-value)$ y* Q& ?9 o+ \' X
[set trust-ok true]
5 z2 k# Y6 D* K8 C9 a% K1 a4 iend
1 P! T) f9 H7 Q, O7 ?4 ~$ _, {2 ~
* O+ Q. R& q" P( E% Cto get-global-proportion) B0 M% \2 K. n, k6 @5 ?: {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# D" h( C0 F* M
[set global-proportion 0]
$ s- X; Y5 j i; d[let i 0
' a2 z" e5 C' qlet sum-money 0
% _# p5 |. `( U3 b7 t! T8 t5 ^$ C4 mwhile[ i < people]$ t4 Z8 x# y7 o+ m+ U$ \3 ? P
[
9 k2 O% r: I. P) o- h0 }# u8 [if( length (item i. p6 q6 Q3 E* t
[trade-record-all] of customer) > 3 ), t! T3 @& Q# n; G
[
9 \) o( n# F8 k Y% Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 W( e# z; F' N, ?3 A8 T4 A
]
+ M8 M( d. {1 }/ {+ Q( W0 u9 ~+ }0 {]
! ~ w. |4 D+ Q3 {3 Elet j 0, z& I2 W" @* t7 f" [
let note 0+ W, \* m0 f" w/ @3 k f. |
while[ j < people]! l7 x& D7 i2 R" ^8 Q2 f
[, `6 q j. ?* R0 v
if( length (item i
5 P* A6 ]: i% H! C# U[trade-record-all] of customer) > 3 )1 @6 g3 m: `: h) [6 Z
[
0 ^3 d4 X# f( A) C9 xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), O0 `: W8 w+ k
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] E5 l( y o. q2 t! _5 g; k! ]+ c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 {+ r( Q# T+ U4 { N! a]
/ k* [% N/ z, o% ~; n* u/ _]
% U1 @& G9 |, U" Y4 ?- Zset global-proportion note
6 t+ Y8 R' ?5 L4 \ \: a4 U]
3 h& D2 M3 a) H" `2 C# a2 D4 Cend% T3 b4 h3 p# T
* ]) V0 z0 f* B; zto do-trade
T; {8 J; H; S; W- N1 c;;这个过程实际上是给双方作出评价的过程% e R8 q0 Q' p j. u0 u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; }: S9 ?( C/ _7 Z8 P/ h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( {* r# x: h+ D) E; Rset trade-record-current lput(timer) trade-record-current$ S/ f; H5 w/ \6 I7 \4 v
;;评价时间* p. C4 s+ r9 M2 _! k( w9 l
ask myself [$ Y4 _* k7 V$ x, M9 ^/ S- h* q% K
update-local-reputation' d5 m" a* {/ m7 E+ v/ u
set trade-record-current lput([local-reputation] of myself) trade-record-current6 \, F! J( l3 [" r/ T n( `$ U
]
' O' `& }7 r1 A: M0 R+ U# Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) P8 _* U: O; P7 {& u0 y4 V
;;将此次交易的记录加入到trade-record-one中6 n( H# n* f5 a& [2 C. k2 O8 I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 T" W7 V2 Y1 t$ _- ~# a) c: G; \
let note (item 2 trade-record-current )0 Q2 v- Z0 A: r6 F- \* A
set trade-record-current
. @4 K0 d3 Z9 Z4 G) r(replace-item 2 trade-record-current (item 3 trade-record-current)); z8 C; A( A' V5 M
set trade-record-current' O6 B; y2 \# U% n! ^; p
(replace-item 3 trade-record-current note)6 t; d2 z+ K# `
8 _8 H5 Y* J: M
5 Z9 p. u7 Y/ |8 |4 ]! N' {' cask customer [
) g- E& \2 j+ Zupdate-local-reputation; B! o% k7 Z! ?/ s3 O
set trade-record-current
9 |6 A' x8 ~ H/ e9 G4 X) V# u- L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * H/ g7 f& h& {. J' [! H
]
6 t5 H+ {3 m8 [0 g; J" X5 k- }* n# a/ H. b% N1 B7 X8 B
0 A. z" P& C" o, R: m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 D+ M/ p: l9 X& U3 N1 t( O
6 A& V. G5 J# h. p1 Y" c8 A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" Z- H0 ]" t! u! z+ A' c1 j;;将此次交易的记录加入到customer的trade-record-all中/ v4 M! B, k+ F7 Q; P3 z+ S" o
end
! P3 x' g& _6 t; J/ v1 Y- i N7 N2 I6 }9 X3 k* O
to update-local-reputation3 [1 u6 a0 E+ h
set [trade-record-one-len] of myself length [trade-record-one] of myself
$ }+ _' a" u% L$ b( H
3 J/ L5 {: X( v% w; v! V m% M/ B4 a
;;if [trade-record-one-len] of myself > 3
$ Z) T" I9 e8 e& n* H; mupdate-neighbor-total
* x& T+ o- d' ^+ g- o;;更新邻居节点的数目,在此进行
4 ]0 o+ f" p8 y& x* Jlet i 3
8 x L& ?% Z& u# V( Ulet sum-time 0
$ J$ y. Z7 r. bwhile[i < [trade-record-one-len] of myself]
" M7 f, v y: Z5 B! O$ `3 y[( U% T [7 D& P+ x; [" f1 t3 N
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- _3 E, w& N- p
set i' N' J/ d1 V" `1 ]0 i$ q: Y& w
( i + 1)/ @0 l+ c$ u0 x
]* z* o0 h6 R' B' s% ~+ G3 X% p+ Y
let j 32 T) O* [# e$ T7 R
let sum-money 0
$ o1 H3 R5 ~+ Q( q" I! ywhile[j < [trade-record-one-len] of myself]7 Q3 ~: {% B: ~" r
[$ O; c* P& r2 [: p7 l
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)3 }) F( y1 y! u( E; f, e
set j) l8 z, l; n4 U& ]# }0 k( i
( j + 1)
' _! ]) L/ Y# ~" S8 X7 a]. x; z, c# x6 |$ H. `
let k 3
9 S8 W2 {* r/ w* L* elet power 0
5 o# t; H a8 s+ Q+ w% Mlet local 0- l. }: b# N$ ]
while [k <[trade-record-one-len] of myself]3 y i: i; l- l9 f! s7 J
[
. h0 y/ j- H. z% D8 ~2 [7 h- d4 vset 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) @: F7 E4 j! f0 t3 ~& i+ F; ^! o8 u
set k (k + 1)/ N, ^4 k& j; J
]- a% D- q! S# u1 g7 i
set [local-reputation] of myself (local)
) C5 R$ l+ |# z7 W9 T* n( q) uend7 r7 m* T: Q( w* T' h
' W( u. q# z; V( M" t" sto update-neighbor-total! w- k0 R( v8 M- N
( G% u5 n5 y6 ~if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- U4 A. I5 `9 \7 p* Y0 X) C9 \
6 b6 D/ e+ E. M& S6 s2 }$ i7 e! t9 |1 B& }( \9 b. ?0 A3 ~
end
0 G7 Y2 @, r2 s- y: x
$ P& D' s8 Z. K; O0 nto update-credibility-ijl ! o" `. K$ U6 Q0 g
4 c' a; q+ F5 a6 y+ Q6 G* a5 w9 f;;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。) O2 j A% h7 a& P, M
let l 0
5 ~1 V6 ~* g" G" f* X- w6 Rwhile[ l < people ]
7 A/ z2 f+ A! e, ~- ^;;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 X/ `- s' |1 m1 i& K
[
# F6 N4 t* P; V+ [9 {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 T' Z9 g& I, c4 a5 g0 Q
if (trade-record-one-j-l-len > 3)
. s1 v8 \! y$ }/ o4 ~' c[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/ a: r0 x# H9 p
let i 3% }% a9 ]- s d n( Q p" o! V3 \+ }
let sum-time 0+ j2 v4 j- h. z) F: E/ D' K* U: z8 X8 D
while[i < trade-record-one-len]
+ W- l+ q* d" W; F J[- _' _+ x5 S1 i' {9 w
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 F5 l$ E5 D- w5 E! k
set i
7 O; ^' H5 z% N W8 M5 R6 w( i + 1)
) T9 y4 H+ B' Y: h8 O* l8 p]
: G4 i8 k5 f% s( vlet credibility-i-j-l 0/ i6 g" Y+ g2 j+ G% g8 _
;;i评价(j对jl的评价)6 S' F! w% ?4 e
let j 3: Z4 ~/ }5 @7 J6 w ~
let k 4
' F" X/ S. C5 s' h/ ~4 H( |while[j < trade-record-one-len]7 H8 I2 q/ P. M! O( y
[1 L$ p' C* e* s, A8 W( z+ ~
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
3 ]# _+ _: H0 x: f; xset 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)! p0 R' H: J4 y: F% N
set j) x' P8 H& Z/ n8 V8 \
( j + 1)6 P% r3 Q n2 c( i. V8 _
]2 h1 z9 n- A4 j, t
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 ))
4 r# _' e0 ^2 h% Y- M. ~( c( d2 @( C* [2 J4 }9 S6 o- p
. h6 W/ j) |) i' B) ]let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 T, P C$ H! @! r+ _, T;;及时更新i对l的评价质量的评价 f. a6 u4 n! P9 q2 f2 Q7 H) K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 |& f5 l/ l* Pset l (l + 1)
" G# L7 `8 Z6 s9 U]
; k* t1 C4 N: b7 fend o1 W# S% B; X) o
5 {# O2 r5 @, j4 b
to update-credibility-list
% q/ f! l3 W% mlet i 0: g I2 B1 r1 y, D" g% l j5 O$ ?- |8 Z
while[i < people]
1 Q3 J0 P# T5 q, R; J, {[
6 N, {" F0 q9 W( n( s3 Hlet j 0
# L. q+ m$ d; U" H3 x1 [. A4 q1 }+ ]let note 0
/ \* }7 f& L; D$ }+ Q3 Flet k 0
0 t) {* H( [( M4 b0 F;;计作出过评价的邻居节点的数目
, S+ c/ s( C1 j- Z5 }8 [while[j < people]$ a( y: W! A0 a6 ^) j
[. W+ A( y8 ^6 h; T( M
if (item j( [credibility] of turtle (i + 1)) != -1)
1 }! k7 [% h4 P+ R3 k;;判断是否给本turtle的评价质量做出过评价的节点
, M7 ?' m1 P) C) P& J( ^( C[set note (note + item j ([credibility]of turtle (i + 1)))" h6 O! y4 o2 s
;;*(exp (-(people - 2)))/(people - 2))]
( H" w6 Z, k) c# D6 x6 k9 Nset k (k + 1)
* Z+ ^+ i8 k9 O]9 e1 Q% l+ u1 o# q0 _' K: o s
set j (j + 1)9 g& \1 n% P) Q: i) M1 }$ ?' S8 d
]# s3 i2 J8 \; d* ]
set note (note *(exp (- (1 / k)))/ k)" O9 X r4 L2 M
set credibility-list (replace-item i credibility-list note)$ r; u1 l% S0 ?) E
set i (i + 1)
4 O% Q8 G; V: {: T! J5 q6 U]+ t# _+ k% }$ z* P( L9 H
end3 R9 r, S" \( ]. U# W4 [ I+ U
2 u, i* h& x I% H. C: {$ \
to update-global-reputation-list
2 g. E* K5 O1 N6 W! alet j 07 k% k( e' S2 I
while[j < people] t) _, S& E' [
[
: Q3 t2 j) b6 [% n/ n+ C; i- rlet new 0' J# q2 u/ M( h5 |, l! T+ G- L
;;暂存新的一个全局声誉
% j9 [) y. ~3 `% u6 ~$ Ylet i 08 o J. O. ^6 |7 q
let sum-money 07 K3 y. g3 v8 H% [# m# N* s
let credibility-money 0
% |& f) O2 B; j& @( t3 Kwhile [i < people]
$ ^4 s' k' [ \, O[ F: ]1 ]' b* _9 h% b3 h
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# ^- R* Y+ L1 S, l) J# o; f
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. d* T' K* Z5 Uset i (i + 1)
7 q6 u p9 p& }" `" q$ N4 F]5 f8 B. l! ]/ d) q9 A0 Y
let k 03 `4 O3 \3 M, f( N! T3 C
let new1 0) d( ?, a( k5 n' S b
while [k < people]
: A9 i+ j' t8 Q" i* ~[( \* e- l+ O2 S% `( M n
set 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 L$ R) K, h( G# G0 x( v! fset k (k + 1)7 m" A: K$ b4 k$ o; s
]
/ ~8 H9 p4 N( L6 `5 @3 ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( \1 Q* Z1 i4 q/ }) |% h! ]; J7 Aset global-reputation-list (replace-item j global-reputation-list new)
, Q; O2 m! S7 s8 o0 fset j (j + 1)
( Q# i4 @# y: D+ M]
9 b3 w& S" f3 n! _4 mend
m X1 R# k2 w7 Q _6 N5 {8 u- `! B. Q- _3 G0 G3 d ]
/ V; y' |' c. @9 [7 ?
; E4 q$ D& p4 _5 S5 |' Rto get-color" U6 P9 ^* R8 B
& f3 I) Q1 S' T: y1 B; Z8 Jset color blue
9 s7 l: ?* G# W* O6 Eend, }* u% e# g/ u b
* r& k. r; {3 n9 o$ e% c
to poll-class0 O7 r% z& T' m
end
3 s9 t B7 K Z- `6 x0 w# k* C' C8 U U
to setup-plot1
. f2 Z, \! Q/ J1 | x9 r9 |! t; r# \. M0 h! O0 g' C
set-current-plot "Trends-of-Local-reputation"
, G$ t7 R# H3 ]4 f
! ~' \. z. w2 j7 j# P) A2 b% I" }set-plot-x-range 0 xmax9 {! V3 E! L2 h; B" A
2 X/ `, R! N/ U3 \# v% w
set-plot-y-range 0.0 ymax, }7 A7 f |( `& R3 w
end
+ _9 M& Q0 D1 D1 K8 {7 ]" b% P
7 ~* D. M) r, f: I- q8 bto setup-plot2* L6 J1 g) C: ^4 G
! G8 u+ i: X" sset-current-plot "Trends-of-global-reputation"5 v- O/ g$ V, \) o
$ c* ~5 [7 F0 i( E( n* Xset-plot-x-range 0 xmax. `% e% p6 _+ H0 m- r& }
& L. g0 b7 M9 a) V2 Lset-plot-y-range 0.0 ymax% b: ^, j! F; K8 o
end
6 l" C6 C. i5 c/ O
3 O0 c% |/ C3 N1 R5 ?: E0 Sto setup-plot3
3 p5 m0 P4 [7 I7 a- T8 A9 k; v
# E% S' f' m: g9 }6 qset-current-plot "Trends-of-credibility"
- Y1 i8 C3 F% r a! |0 ?, E4 q% Q- ?# u3 X
set-plot-x-range 0 xmax
0 B: }* ~* K0 t/ ]$ z( ?8 }* _2 N: H0 [; Z' r$ m- y- ?# x
set-plot-y-range 0.0 ymax
7 Z1 o' `, m$ e4 R( Bend
( z2 p8 B F. ]2 t- _: u1 t9 R# G: {4 ]. n
to do-plots* p w4 R2 @% ~, D' N) C
set-current-plot "Trends-of-Local-reputation"
6 ~2 R* I ~. u. S, Aset-current-plot-pen "Honest service": Z' z8 j* `2 x+ ]- x" K2 y, u3 m
end" e/ j8 X* y3 I* Q( D
1 N" u2 l! N, y# [) }& o' o0 ^& F
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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