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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 Z2 V# T1 V& o x+ Mglobals[
! W2 @, I. Y! {8 ?1 d2 N7 Pxmax" N4 M& I' ?2 f! n' s
ymax
( Y3 v3 n1 F7 ]global-reputation-list! N/ M& |7 C, k+ U* o/ `
* x# V! D( ~6 k( }- r! s
;;每一个turtle的全局声誉都存在此LIST中
! [! j0 Q9 x- w+ q: tcredibility-list
4 e/ p3 F6 J" o) `. D;;每一个turtle的评价可信度( T) O# [ j! ]. n! D9 t( M: D
honest-service
# _1 Y: j6 x- v0 j: t4 }5 P# ?unhonest-service* s/ [" G3 S; [( J o) A
oscillation1 ]0 b2 x3 z+ _2 v: v* M# i
rand-dynamic
9 w; h% W3 c6 D7 a0 K, y5 H/ Q0 D]9 q( g! [/ T+ o0 H" R6 l% E
3 B4 b; j4 B6 o4 V0 k
turtles-own[
- p8 J1 t) e. }" p# {9 etrade-record-all0 ~5 p& h6 C1 K3 X7 U: K" H
;;a list of lists,由trade-record-one组成
$ C# h# ~: q! w! F0 X. Ttrade-record-one
* H: ]: u x3 T" R! r2 @2 {5 K' N$ n$ m;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 p( \1 D3 f. `! X
" ~" t8 I/ x2 E;;[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]]6 c b$ F3 V, \
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]# m' k# _ b8 J) K, y0 u6 {
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
% u/ H( ?$ {7 Y. G; Tneighbor-total% X6 ^) t2 c* P; V
;;记录该turtle的邻居节点的数目7 C9 a3 _8 b) u- R3 }# r7 X' N/ v
trade-time
4 d; [9 G6 @+ R0 T1 g( H* Y" x;;当前发生交易的turtle的交易时间
2 R# f* P3 `) F {1 Happraise-give z e" s' ?6 T# P8 w
;;当前发生交易时给出的评价5 f; h7 ~: G/ M1 Y- q% K
appraise-receive1 B: F* O m; f: O1 v5 z3 Z
;;当前发生交易时收到的评价1 b( s; Q% ?, L# g' _# f- _9 k: L
appraise-time* U" L8 ~* d* K. i1 L2 N- q+ \! M
;;当前发生交易时的评价时间! k* J. D w/ [1 O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 Y. w3 ~9 d$ T3 j j9 _trade-times-total
4 x' a3 `+ v) D( V% m;;与当前turtle的交易总次数1 Q5 e9 D1 M- n5 x; q# ` K, D% Z) _
trade-money-total1 z$ ~4 a4 F1 S- J: t6 ~# Y
;;与当前turtle的交易总金额
7 z7 j- @7 ?3 {/ i# I. {" O Alocal-reputation( G! @8 D8 w& B! f1 P" ]
global-reputation
. |9 X! B O; q1 a! y3 _# k# fcredibility$ i& M. B. Q/ L5 C
;;评价可信度,每次交易后都需要更新" H9 _4 r6 z5 a
credibility-all6 `/ a4 J+ P; _0 ^+ w% I4 Q: F4 j& Q
;;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
5 R7 y, ~ y* e3 U6 n) A1 p: S& w" o6 ~4 e# a% P5 Y
;;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
* A. O& \2 |, p, ^credibility-one
" K7 S, A4 F2 l7 m ];;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9 F8 w; S( R' `3 ^) {+ R4 [" I+ S
global-proportion' H0 z8 I4 X: r# H9 n1 b. \
customer
7 m9 L0 m- \, Icustomer-no
' l8 Q. D7 W- htrust-ok
- P- P( r- j7 G2 x3 Ltrade-record-one-len;;trade-record-one的长度
; i: r* |* X) B0 B. ` ~. B]: W9 R* H9 \) v" Y9 b
# o F/ u* |* d/ ^& R' F) V;;setup procedure
- m, U$ r: k5 ~" m3 E5 W! N
9 J0 p! t( |+ b8 R }to setup# B. g3 X2 i4 F( y1 t
& U, u/ X0 |+ U( v$ Hca8 N% c& o: y1 q- _
4 y" J, y8 Y: G
initialize-settings: w1 p/ W5 _7 ` P6 N" ?
9 w6 s$ V, V ?' O5 {* o& M, Ccrt people [setup-turtles]2 o2 [5 F/ n2 R" \4 ?
8 _6 @- G, w/ x& preset-timer( m9 A9 _+ f f$ ^
4 B! d6 b8 Q! O' t/ ]' Z" gpoll-class5 j* |; V. `. R2 `9 a& J) N- O
( o/ _( m4 M. }( v% dsetup-plots
" |- M) ~2 ~8 O' {3 T1 g+ b: E5 V! n8 x3 t9 k" z- K
do-plots
$ T3 j* |$ Y B& ]end5 {; b+ z' q( f2 g
5 _& {* Q2 ~4 I2 K4 V6 a
to initialize-settings) C1 m# \3 |- w3 G7 o" A* j
/ T0 K0 S# M$ {+ B8 h' Z, hset global-reputation-list []
8 S$ a, ^! t( e3 q+ r) b" [: t5 I) m# \8 @
set credibility-list n-values people [0.5]
. \: s+ w* A! H4 s @2 ]
) w2 p$ j& [" S) |set honest-service 0
+ A4 M- Y% F* R: O$ C0 A
5 S$ k4 t$ D/ ~. mset unhonest-service 0
- b. P0 F" o6 ?) E( V- | T" N: |2 v" W; ^
set oscillation 0
& I. l$ b# B1 J+ G: _: k! {$ \# D8 H/ a3 s9 h$ d8 ~. W! s
set rand-dynamic 0
4 M/ t) J# T+ U! Z- M. ], aend
7 `% U- f8 ~8 m
7 m7 ~( ?7 D5 v6 [/ k0 C( D) `to setup-turtles
$ i5 u) n: R* ^% I) _. `set shape "person"
# R$ W; M+ ]% s! Wsetxy random-xcor random-ycor) D) |+ J( o& E0 ]& e' ^& i7 x2 m
set trade-record-one []6 L! d& _! w: w: S$ [- Q) E
* B& b( P( z* [+ ~& B9 c5 p; k
set trade-record-all n-values people [(list (? + 1) 0 0)]
. K: Z3 N" h& ?9 o. |, H6 O8 R( o2 g" [) v( Q
set trade-record-current []
^2 E% g; a, V" `0 G4 w3 Bset credibility-receive []
- C4 |' @+ i2 Tset local-reputation 0.5( p% k/ w" X% M' _& F. [
set neighbor-total 0
$ V% X0 \* J9 D) }0 F% f kset trade-times-total 0
1 ?' F0 |; W, b d7 wset trade-money-total 0
' z! ^& f6 D2 W, pset customer nobody! i# m1 ~3 M3 j+ g3 L' o
set credibility-all n-values people [creat-credibility]
, ~3 m' M9 a3 F2 v" W/ Y. [set credibility n-values people [-1] [. y8 X" Y" E2 N' g& x( W5 Q
get-color
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[! D! p3 n7 T: m* J$ n! |end4 }2 u/ M/ h% M
# Z! \& p9 u: ~) L! p3 z' n
to-report creat-credibility1 O! e- i' I. C- H6 w( B) Q, i7 {! A
report n-values people [0.5]( n5 N. @, t! r' X
end, S$ ] P0 d6 J9 w
7 ~# n" G6 ]. d) ~to setup-plots- |3 B: B- Q" I* m, P5 ?
: q+ B3 k7 q8 t1 j7 T
set xmax 30
7 x# u5 z% j# l+ f( M( Q( [& H" Y! R2 t7 z. U$ Z" N
set ymax 1.0
x1 a3 f" B i# U" u' E9 ~; K. ?9 O: E
clear-all-plots
+ E. z: M, y9 K( u& E
8 y, L4 P; c$ S* i+ L( ~5 T& Vsetup-plot1- u! G; Y. Z% b' e/ H1 O& q5 E) R4 P) x
8 A" l1 }% w$ R" R% B# z; T. Lsetup-plot2
) |5 l3 e! _& R" X( [1 j/ A9 C! E1 U& S
setup-plot3
- \& L( I4 @. V& t0 E2 D a/ `0 `6 Rend
2 S: [0 u7 D. @+ p* `
$ ^/ a/ @ v% m;;run time procedures6 X5 W: y# T* |; e4 R
) S9 ?" x* f4 o! I0 N$ c
to go( y6 f: y: y" M% S7 c. [' m: [& b
) L# u7 W2 D6 l
ask turtles [do-business]
+ P" @" P5 J" e" aend
; a q/ q/ q2 ^. F- h, W& t7 d" \9 d, i) _/ ]
to do-business
& O" c6 ~. c1 I) r2 d% Y8 Y. O8 I+ \2 e2 U9 p7 I( n+ X K
' B; \1 a% I) \5 l2 i, T
rt random 3608 q/ K& C. U y
/ p6 E) t2 |0 Efd 1
) _ f' J! d5 S
, m* ?' d" `: p' `ifelse(other turtles-here != nobody)[
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- e: W+ ^" ^; }( Nset customer one-of other turtles-here
% |& P- r$ e- E* t+ U. V
\7 h1 a* G# m( W( q* h! f! y+ Y;; set [customer] of customer myself
9 Y. n, j6 O* |7 z9 w0 l' N2 X, D) x7 ~7 s8 Y
set [trade-record-one] of self item (([who] of customer) - 1)5 m3 Q: @7 n: T' u6 u! Q4 }
[trade-record-all]of self
) l) H' t* s1 z+ r% p) ^! J" I6 n;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: i* r' f; Q: h4 v5 {; f+ c
9 y. v. I+ m W% w* Nset [trade-record-one] of customer item (([who] of self) - 1)* l8 b: j a* e
[trade-record-all]of customer
) J# W5 t$ S; A5 `9 @, L# v& \; B; ^7 V6 R y" F
set [trade-record-one-len] of self length [trade-record-one] of self
# P+ x3 [! b1 l3 O e/ I! T3 o n7 x/ t
set trade-record-current( list (timer) (random money-upper-limit))5 W3 X+ i1 g5 C( r4 `$ y: Y
! g, k+ v7 h! T* W( ]! Y0 Fask self [do-trust]
: y: H5 J0 h* H" G7 m;;先求i对j的信任度
7 F1 N+ t. g- u8 ^
" o% U+ H7 t1 U7 Bif ([trust-ok] of self)
) d. @0 w# v9 K$ F; |9 _3 s+ ~;;根据i对j的信任度来决定是否与j进行交易[ _9 q% T+ E! {( W6 \/ B8 X
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( O) V/ B% P3 \8 F, ?
J% o3 M$ Y4 b* i# s[7 P) S9 ^' T# b/ P+ ?5 p
6 m, J7 O7 k7 Q& B/ @9 tdo-trade
9 f: e( ~$ Q4 L! e5 ^# ]* H( v. i8 n' M3 A5 l
update-credibility-ijl
0 Z2 ~+ @8 ~' D9 g- @" q4 K
- y7 z/ Y5 U: c4 E9 uupdate-credibility-list/ Z" M, l" G- }/ a+ U
/ ~' i f" P0 d0 o3 O0 M% ~
* }! B* c# w% Nupdate-global-reputation-list4 c6 k' l* L* w, p
! P- }3 Y7 H9 {( e8 z! lpoll-class
# ], [- I1 Q' d, [5 _5 q0 F& Z# a; D( C3 |9 i$ ?8 p
get-color7 `" G' \1 Z/ g5 _
, F6 W5 |" H6 z) E
]]2 B5 X7 P$ N9 F9 }* s3 q# c8 }$ R- K
, x3 ]/ i8 r) u* r( @/ [: z3 T;;如果所得的信任度满足条件,则进行交易
3 `5 O7 t4 [% c; x0 I% S& Z9 r1 k
+ J2 ?6 o2 G9 t! `[0 C) @; c% [' ^) M+ d. r; `, h
5 A2 L0 t2 d- k: O: k6 r
rt random 360
7 P* ^/ J6 d# r2 a$ \6 p( }2 L9 p1 v* W+ K' r i C
fd 1
# W8 `9 m& @* y; N+ f
/ }. A4 v6 x6 S* N]; t i) N, _( \
4 d& T/ r) S z! V+ |# uend' A5 v) R8 f# T$ p X
- g# J0 X& i# C6 O0 E# u
to do-trust
+ V! v' B8 H/ {2 dset trust-ok False
Z/ T4 C1 j8 s% K
2 V# S6 S8 m9 ^# P/ {$ |4 U2 C5 J/ m. j
let max-trade-times 08 N- R6 q2 n3 \/ \( W
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 i$ W; C% Z3 Z" Flet max-trade-money 0
, _" ]- v6 s( j% e, W- x+ Dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ U$ L: [( e; R( a# m) a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 s0 H ~# V3 }0 S4 c0 m9 [4 ~' f9 F6 U0 x
* L# g- ^6 o6 _) W( p
get-global-proportion
6 D* Z8 d8 {3 r! N0 ^( E" dlet trust-value
+ z2 v1 X/ B) X* S! u9 V# H9 q% Rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
; [0 T% k6 f: a2 l, P; {if(trust-value > trade-trust-value)7 w0 T0 p" Q- e) X
[set trust-ok true]2 W& _( p0 }8 Y/ s
end
& c2 ^' \ d6 j7 u( w- G1 z9 O7 h8 h! D) s9 {' S
to get-global-proportion) @2 `5 J6 W0 L# F
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' g7 K7 u# u$ k5 }7 a[set global-proportion 0]
4 X8 B! I' }; P7 C[let i 02 U% I2 `! B- A9 M
let sum-money 0
' V! z) w" {% Awhile[ i < people]
7 Q* s7 F; ]" ][" F" A2 h6 r1 M
if( length (item i8 c! {% S, ^1 |+ j) T h! r
[trade-record-all] of customer) > 3 )% d& p' J0 W' X4 d. Q c! r4 A
[4 R( S( Q6 L6 B7 }3 S* T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 E* r" M$ _$ R" N- R
]; h0 z$ r a! ?. n1 D2 N
]
0 Q- e, A/ j; s: W) o) nlet j 0# ^7 {6 v9 K. _
let note 0
& _: z# x& j# k* Swhile[ j < people]) O) M# e3 X8 I. O
[: C; ?7 F) x7 K/ i4 W: I' \
if( length (item i
! A% C( }7 r" P" B9 [0 E4 v[trade-record-all] of customer) > 3 )6 U( M2 {5 v+ y
[
- B8 Y& T9 F# Kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 S- M" @. P3 T3 y/ W[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" T& h( W7 U$ x* T$ B# ?9 I! J
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( L' S- X* {0 L2 w" {8 p]" ^( p/ \* j8 q" K5 Q
]
6 K1 I9 }! k( J) T0 }7 J) qset global-proportion note4 Q* S* J+ |* `* J8 e1 r1 c
]1 s0 `) e; n8 O3 |! w% x
end+ [8 A; }5 T: D
7 g3 C% j0 @) D3 c/ \) ^to do-trade
) I0 |( n- x, L. V* p; N9 p8 R% g;;这个过程实际上是给双方作出评价的过程
( ]; Q( x- K5 y: N, Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 N! X: T, p; f& T' G- r6 Z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 X k/ X% p! b; c, Q) [5 oset trade-record-current lput(timer) trade-record-current1 r& x: b7 @: |1 I
;;评价时间8 y( \0 u: g9 Z# H
ask myself [ C! G+ @3 n8 ^
update-local-reputation, P s7 J% R" [ X8 A; P1 x
set trade-record-current lput([local-reputation] of myself) trade-record-current
9 p& P4 {% ^* I: p* C]$ N4 v. t1 h6 X0 c) J- _7 U% }
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- Z/ f% C* t- ^" @;;将此次交易的记录加入到trade-record-one中9 V, k' |7 \" ?- k( `4 S
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 o# R+ j" V8 ?, ^ k
let note (item 2 trade-record-current ). \% J, w. c! ^& a
set trade-record-current
1 S1 ?* E4 w$ s, W& C(replace-item 2 trade-record-current (item 3 trade-record-current))
" \2 ` ^5 H: ^* V+ I' e" Mset trade-record-current9 ^9 h- v1 _- O
(replace-item 3 trade-record-current note)
% @2 G. A( O8 X R
, e; S, S' {' G" \3 j5 F3 o! h
" g+ ~! f1 q) S) ~ask customer [4 O# P" z5 g T; m# t
update-local-reputation9 i5 V/ ?+ G4 `$ H
set trade-record-current9 ^8 o2 v. O% s$ y1 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : l; ]+ q& S7 {& x3 A6 a
] N' O) a4 _5 ~! h2 y' {) f
: s0 X& J/ i9 `5 v. W0 v
A* z7 ~" I7 E& u/ |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! {( P+ ~ t* x( P( X* K+ L% w* c O8 J3 r% F1 w+ _/ ]* _
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 v- v0 O& d. V! z9 h- ^5 N7 N7 [
;;将此次交易的记录加入到customer的trade-record-all中
2 ]0 n C2 m2 kend, y6 w& H9 @' c- T. R0 \4 f+ V4 D
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to update-local-reputation
+ K$ x1 e! D" R. b L: n( V( a: ~set [trade-record-one-len] of myself length [trade-record-one] of myself f: S5 F- ?) `6 n' z
, @" X6 d9 d: S% L: q+ z* O
9 D6 S: [' j" ` a# J;;if [trade-record-one-len] of myself > 3
J2 Q) V& r2 G: N, c. uupdate-neighbor-total# d H! O# P7 n6 R2 j
;;更新邻居节点的数目,在此进行
$ i' |! d1 C0 t- n4 Rlet i 3
4 _) L$ B# u! C& z {4 D4 tlet sum-time 0
: I `$ W5 A- X% z9 T k/ F8 }while[i < [trade-record-one-len] of myself]. M1 W1 _; ]4 L+ ~: t4 E# X- L% ]/ l
[
) H7 W% U8 A7 M$ f1 Kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 w- Q2 k; L3 i% Kset i5 Z$ G( K) |4 ]+ |/ @
( i + 1)5 I9 x2 e [0 J* Q
]
+ H7 v5 [. a" V- Tlet j 3
2 N# i0 s' R+ Mlet sum-money 0
0 s% E6 r# [, B, }/ gwhile[j < [trade-record-one-len] of myself]! Q% C! j0 } e. A' f0 u" |
[; S5 g2 [- Q$ G% w- o$ O) H
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)
z6 K( l" J5 n) Cset j
6 P1 c- z8 t% ?5 A( j + 1)
* ^, y. k( ?6 x]
$ {: P$ x) H3 m2 q4 D; t/ [; Wlet k 31 T) ?9 t( J% F2 b9 i
let power 0
* T. k6 a4 Q! |9 m+ P) ylet local 0
k' `5 i C" lwhile [k <[trade-record-one-len] of myself]
$ h: E0 o% f: j$ U V[! t1 k# ^5 S: {8 g% q) k
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) , C4 P6 t; U; ?8 y1 W+ G
set k (k + 1)1 ]/ w- l2 S/ a' W' ~
]$ L7 q- L2 F. v
set [local-reputation] of myself (local)3 R5 @9 K+ O. C; j6 f
end
9 f8 u. q; S" ? Q& ~7 a. ^. B5 V8 E; ]$ W' e* c
to update-neighbor-total6 o! {# e( y. ^& T# r {6 u& \
5 t5 F8 K( Z, T6 L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 N% k- @/ _$ B3 _2 |+ U& V1 b+ I2 w" ~! a, P+ d* d# t
0 P1 p4 c/ f) Z: y7 uend8 s. J5 }* f; x5 X$ e8 T
9 ^# O" m+ X) }9 w5 Oto update-credibility-ijl
5 R7 w+ T4 s4 _. b
' R4 G! G6 c5 g3 e) m# |4 T; M4 `2 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。
. N/ ^2 d% d7 W. qlet l 0
' p2 M1 d# _% H# i9 p3 E; @5 M! Cwhile[ l < people ]
0 |$ N4 W/ f/ w c;;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+ h4 m4 f1 Y2 r6 o
[$ }: B& C+ e2 p* A) k
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)' i: W7 E/ H4 C
if (trade-record-one-j-l-len > 3)4 `" ^6 e. F* c/ J
[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
5 k1 n, m5 h$ k9 tlet i 3# \: g x& N& S" ?- a
let sum-time 0
. I" d# a8 P1 v" Owhile[i < trade-record-one-len]
' N9 {- V7 |0 o3 |" k( U: u. p$ U[
7 C+ I0 m1 X. _, D, qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 n6 X, Z- j/ B5 l
set i
. ]9 M9 V& Q& p3 {; j# m( i + 1)5 |; Z0 k$ b/ j/ C4 J4 w! W: u+ Z
]* A6 n' T q8 X4 u7 \
let credibility-i-j-l 0. r, R* ?& T# @% D: ^" N7 [
;;i评价(j对jl的评价) }+ ]+ v0 U, C# g, u+ P1 t7 J( K
let j 3$ S, d6 L2 ^3 c) d5 L
let k 44 |/ k9 p6 X/ T4 e* }. \6 _" s( S
while[j < trade-record-one-len]
, @; i$ S8 p, ]% J7 _[
7 O2 V0 x! r5 ]( l7 ^% kwhile [((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
5 `0 w, R1 ^' Q8 tset 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)3 F( Z7 [' R B) V9 A! B g
set j9 v. C' k# o' a) q3 x( b. {
( j + 1)
/ T. x& w' O9 s6 ?) p' h]( R0 m0 w& i- V+ r; A2 Q, [
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 ))
: E. N6 n" y* B8 H- r) G- R" T' F" V% g/ [" g9 y# p
8 B( d7 U+ B- ?& ~% H( ~let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, e$ P/ }* O9 E1 ]8 q$ u5 ];;及时更新i对l的评价质量的评价9 K& ` j( V; q' b
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ M, s7 t6 L7 }9 o- i6 ~( L" q/ kset l (l + 1)
0 j9 a0 x+ T1 N7 C" `" \]
( J5 Z3 l; |9 A& M" J8 \end
% a& D% D8 f8 y2 D- p$ H. b' v" N9 G, |
to update-credibility-list
# R$ m0 H$ E/ G8 g. C( klet i 0$ r0 u) ?1 e6 t. W( z$ \; [$ ?, }/ q w
while[i < people]
* l0 L* f! G8 E[
0 T* N8 s4 [- Dlet j 0( }1 K) G8 K7 ^) F# a, n
let note 0( `; A( i" s6 P' w
let k 0
3 K+ N6 F5 g5 R;;计作出过评价的邻居节点的数目
+ `. _* w5 D$ O: [while[j < people]6 {: w3 ^: s( T$ F
[3 W0 @, g3 w& \% i; ^
if (item j( [credibility] of turtle (i + 1)) != -1)
& J6 Q8 B9 t Q) T$ C9 R0 p. a;;判断是否给本turtle的评价质量做出过评价的节点/ M# e0 e" q, r$ j) ]; a! y, ^
[set note (note + item j ([credibility]of turtle (i + 1)))
0 ?* ~- t% p$ r$ s- ~3 Q( F;;*(exp (-(people - 2)))/(people - 2))]
6 l2 _, M' ]% Gset k (k + 1)# d% ^: a: N% I- y1 H
]0 C6 O, {& M: n2 `. U
set j (j + 1)+ f6 @6 _+ \' [+ e' Y/ [* F
]
: i: J/ W# G3 u, s+ j: cset note (note *(exp (- (1 / k)))/ k)6 `$ [2 C% L- o9 j z8 l h' @
set credibility-list (replace-item i credibility-list note)
0 J3 J& @9 L+ J& Jset i (i + 1)/ u n; ]' E; V ?
]$ q' u6 d1 t2 G1 i5 w5 t
end. ] M/ ~5 k$ ~' B( k$ s0 W! l
6 D7 h6 n. w8 N* ]to update-global-reputation-list' M: T3 f2 v( ]5 a0 L3 b8 z
let j 0
2 W1 r. N: A$ Z. m& }while[j < people]+ n+ l$ F* V( D8 c4 m H
[
4 R- {8 r! B4 Y' m* K0 B( J3 vlet new 0
* M' K; n+ e7 A \7 \;;暂存新的一个全局声誉
1 M, Y% T& X5 R( qlet i 0
( o2 S, p3 Z& D+ U5 b: }5 P" dlet sum-money 0$ y, E: P. c/ f) V* y
let credibility-money 0, }8 x! R/ _1 D
while [i < people]7 A/ n: D& v! U' p7 ` w' {. m
[4 |) A- Q+ u, V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 x! q3 F2 D8 A- k) ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 r7 c# y& e2 }- P! D7 B/ Hset i (i + 1)! y5 L5 j4 `% y& S% }4 t- V, Q
]7 q1 t1 {% t8 Q3 V
let k 0) F& ^+ }" e7 m2 w3 c! \
let new1 0
$ `4 v9 G; V+ `* dwhile [k < people] a( X8 {0 ]% ~* F+ `, R
[+ q. o9 G6 O- m
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)
$ p0 R. j% T, ~3 k. T/ I2 ]set k (k + 1), ~1 Z3 I2 ]6 ~
]* ?, D K7 p/ R3 r
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 e. g. o2 C$ {0 X' p
set global-reputation-list (replace-item j global-reputation-list new)
' v7 e/ B5 G, s3 {, R. R/ ~set j (j + 1)) ~+ m6 d! N4 j$ x q( Z' z9 H% A" T
]
; u# E, @/ [7 o: h9 A8 Uend5 l, Z+ }# u( Y: N% X
/ L" g. ]1 u x
3 e: z, H0 M5 N* z
9 R/ i0 B5 q0 ^# J; o9 ?: {8 _to get-color4 P- i% t7 I) {/ X1 `9 d
* K) U# ?5 q* j* g5 x3 u
set color blue
3 C% z/ g1 N3 }0 Zend% K# z; b+ F: ?: q: ~3 }0 {
2 V0 T) j. x9 Ito poll-class7 ^1 M, g8 x' u$ i) u! F% U+ ?: z2 }
end$ _ `* E2 ~0 k0 ^, J( c) E. ~
3 G/ L! u @. x; W' Bto setup-plot16 q2 A3 b2 Z$ W8 w: |
}: w4 {4 ?$ n& M% g8 kset-current-plot "Trends-of-Local-reputation"
$ P8 ^7 a8 A$ k$ O3 U6 _- k! g0 d
set-plot-x-range 0 xmax
7 r. D2 u, a+ o$ a
: |: v, Z+ G( N/ w4 hset-plot-y-range 0.0 ymax
4 ^* }' X6 V# H( Q9 X1 f6 fend
9 |0 p! X6 _ D
: p+ ^8 F5 }! m, Kto setup-plot2
: B A, X" ~# M* F- {. o" H% D; _: I. F# P6 n0 i3 \! X
set-current-plot "Trends-of-global-reputation"' g! x8 a4 {& v/ e7 n
/ R; [% {; @; _, l7 v" M
set-plot-x-range 0 xmax& ^' R' f) U( g: x/ E: y/ g
1 q5 s4 j$ [) S1 O9 r V8 [8 E4 Qset-plot-y-range 0.0 ymax) d& u/ F/ E# Q- f+ w2 v# G
end
* R4 G x) s' i/ W! e& R" W9 O0 P& H ~( r9 ?5 q$ S
to setup-plot3
( [' E! ^, B/ y% C3 u, G0 B
9 ^& I2 }. q6 o5 Dset-current-plot "Trends-of-credibility"
9 H, [8 Y" \2 `5 H' }2 K5 Z0 s0 I" b/ R- k% E; O; Q
set-plot-x-range 0 xmax5 O+ c& ^4 ], N) a
$ ?& \8 u2 }( o e6 Z8 O% H
set-plot-y-range 0.0 ymax
# C* E/ [( y5 Z+ M8 kend
. `7 X7 _ Z U
# E" k# o: f# F5 `to do-plots# s! X) N* a% T/ j, s1 J0 g y4 V+ T+ `# b
set-current-plot "Trends-of-Local-reputation"
( p2 Q- F. P$ \0 Z2 u& lset-current-plot-pen "Honest service"
0 n" ]/ n& P/ p& \- tend
# V V1 b9 I4 Z) _ I1 c: a! B$ w' k4 Y2 K1 r- u, m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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