|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
' h" ?9 N. d4 ]- I6 ?2 b5 hglobals[8 I) j( L$ B6 t8 }. W+ R
xmax
+ d c1 E3 Y1 Gymax
% m- k9 d& Z: c, gglobal-reputation-list9 o3 C. |* V# h& W
2 c, ]; H2 M6 }2 n" n. I
;;每一个turtle的全局声誉都存在此LIST中: G8 S& W; y$ n0 E& y5 w% T1 J
credibility-list0 z( _. Q6 ?- U
;;每一个turtle的评价可信度
* `9 ?! T. r; o3 ?! p3 C* }honest-service
' l) B: Z% h% L' W, S0 punhonest-service
7 ^% K% r1 ^1 |( ]2 eoscillation( T4 U- W" e4 n, ~$ q, i! m5 B# i
rand-dynamic8 F( O& T7 m" Y# x
]( {. Z; H5 P* d2 F G; H7 A
9 z$ { b, j! \+ Iturtles-own[' S S2 m! R6 d$ w3 o1 M7 _
trade-record-all& q0 v: N% N* x) C" R
;;a list of lists,由trade-record-one组成9 d2 V# p5 j" N Y2 ^6 z d( E
trade-record-one. O( S0 r2 l2 a5 u' \: a% |- V
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* ]$ ?+ M8 A' b* [" W
; ~: B) p1 A0 l# V;;[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]]
5 w) L7 ]' _2 \, vtrade-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]) ~& [) W7 w3 ~1 D- ]/ q1 C7 A
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# g% R& z( A8 O8 w2 B
neighbor-total
' N7 ^( [; y5 V" |& d;;记录该turtle的邻居节点的数目% _) G, {3 W Z9 M+ r- J
trade-time
w K* Y6 M0 r) C;;当前发生交易的turtle的交易时间) a3 E. |1 e% h5 u. a( E
appraise-give
( i7 J# V' C, B;;当前发生交易时给出的评价, U; b6 e% ?/ F
appraise-receive8 P% f3 H$ r+ b, \. g9 S
;;当前发生交易时收到的评价+ w2 q3 w& }, E1 W2 t! p' n; F3 v
appraise-time$ H' Y( O, `6 y: T S: r. h( b1 @
;;当前发生交易时的评价时间+ O+ e4 F% ` ?
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 X$ i; K v5 g5 u) Otrade-times-total8 _' N$ k8 W# p5 g( d) j
;;与当前turtle的交易总次数; o* Z& Y, r4 h" B* I( v- V" f: `
trade-money-total6 [" g. W+ w5 q |# y g+ q: k
;;与当前turtle的交易总金额% Z! k1 G; G# Z" Z! P( r# G7 j+ X
local-reputation/ r' ?: o0 ^ z1 T; _
global-reputation
( [- T# q- a' W) F Q- i# O2 ccredibility
; W9 O% k9 n( l" b* h+ m5 Q;;评价可信度,每次交易后都需要更新& z! y+ R. ^0 w5 [5 k( i+ B& t
credibility-all
. H/ d0 r! ~2 S6 b4 s$ j8 P7 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
2 U( k" ^/ }/ P; G$ |
: ?% x) v! N/ x" B G" {;;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0.52 A/ P6 B4 c: n' m
credibility-one
0 i6 _: D9 m3 y/ ?4 ^;;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
/ h5 f0 w: [' Q5 K, X. aglobal-proportion) }3 k% |: D5 u1 a) Z6 L2 h% \2 f U6 q
customer- Y) E7 x! h2 V x1 `% s0 M1 B
customer-no# [1 K! k* x* }6 t
trust-ok
( l( a% c3 M1 ztrade-record-one-len;;trade-record-one的长度
' \. i& V+ y$ q& g9 q1 S) F: j]
! s+ D& U4 s+ s4 ~% f; [5 m$ T
- t- ]( B6 C( \0 S$ H;;setup procedure+ r1 c# Y& N3 x, B/ V9 {
. c+ o* M6 q' v# }5 Q' [
to setup
a% Z: L+ t/ {, K6 w. I U1 `5 n# S3 J% |7 V Q
ca
: e# ?% R+ m0 X" E
( g9 T% k! u/ u4 Minitialize-settings
6 \. [2 d) t( S% u% y
% a% r; H; m |% U$ `crt people [setup-turtles], K3 a- }/ h, s7 b
+ Y+ n1 F1 I4 s) J5 `
reset-timer
0 [* m6 k. t9 ~3 H/ t4 Y: x7 l& X- m7 V( J9 Z
poll-class
; a! ~& l) m5 ]$ a9 P3 L* s8 `3 N3 o$ C' e# k$ ?
setup-plots
+ q) [! k5 O" G# A* Q {) c
) x* D/ S- D% S9 C5 [do-plots& }# [, C/ W. } ?
end1 x _4 N: F2 ^# }# E+ h% l1 p& F
: |% I, T- _5 Z8 s: Q
to initialize-settings
. B2 X n* g6 A' w
1 x% c u5 w1 s2 v* o, mset global-reputation-list []0 u$ [" w0 f% P7 W
) I# o% L% `3 W' M
set credibility-list n-values people [0.5]
7 j2 ^) t! N& T) d) |" M4 ~ v6 I% d/ X; A
set honest-service 00 U) E, ~6 a/ F" |
4 g9 Y9 d( x4 L1 l! ?; i3 @
set unhonest-service 0
; ?% t, }2 W# [7 s% U% Q4 h3 \( h$ ?2 E, G
set oscillation 0
* [' n( G7 i3 A2 q# _) h0 z2 n: i9 C) u6 I& d7 O2 P
set rand-dynamic 0
# t( y5 {, q; g+ xend3 P5 O9 r. M8 {. P8 K; p
9 u' ^- G/ |$ V% t4 e; A
to setup-turtles
, d4 D, D$ W& M. \set shape "person"4 h8 @, z4 S- u6 Z Y
setxy random-xcor random-ycor8 r% V4 S* `* C/ h& Y' B' Y$ f
set trade-record-one []6 i$ y( e0 _7 o7 N
) S% n! k+ s$ ~/ O
set trade-record-all n-values people [(list (? + 1) 0 0)]
/ |( H4 W# s1 P/ i: i* S5 H, b1 h" j- C
set trade-record-current []
" r; n4 h6 T- Y4 C2 U% f0 k( {, vset credibility-receive []' ?/ F3 J5 a& o. t3 l! ^" Y% ^' y
set local-reputation 0.5
7 E0 R) B6 a0 h8 S2 Z3 vset neighbor-total 0; X# I9 ]* T+ f& @% c+ P
set trade-times-total 04 E b% a8 g/ W) s" \
set trade-money-total 0
( z: ]; c3 U7 a* L, R: nset customer nobody
& C* y6 X! H! q+ t" X" I4 dset credibility-all n-values people [creat-credibility]
' a s4 s9 I& k! l3 i4 Q% e: Oset credibility n-values people [-1]0 C; Q8 J/ D2 X
get-color
$ z8 l( |) Z; M+ a" n9 h' P# q. c! {9 d2 c- L9 u+ V
end( |7 @+ t8 \' H' M7 e
: y$ g& o* U6 J" S& K C! S6 cto-report creat-credibility, r8 S8 G" W. n. D H/ ] a' Y
report n-values people [0.5]
, }- x# {* `' Oend. J: Y" \$ {2 |& L0 t, H
- C/ l6 k! a6 w0 D( m4 C. \
to setup-plots: U. { |; c3 V, A; ~; ~/ x/ G
' g5 f$ _8 y: F2 O6 G) j9 hset xmax 30% b z# E9 V1 W' a: I2 a/ \2 D O
) T& e; @+ t1 `set ymax 1.0
: W- p c( X5 G9 J z. [3 M0 V
0 j4 e& k+ I& mclear-all-plots
* C4 ?- T" n* o [5 U9 D* X: d* J, R# \* u* F% e9 R
setup-plot14 G5 }1 Q% w1 u: W. F8 ~! ?
$ x i$ u6 S1 Z9 ]$ Psetup-plot29 Z$ V% K6 ?& l7 o; X: [
1 v/ W9 l7 s d* H5 m9 N* g7 l# Q, hsetup-plot3$ g9 A+ S- }6 M
end6 e5 d" a, X. P6 Y
. B6 e F. `6 a# d( p;;run time procedures
/ u+ F9 P* X$ z* c- w! m
5 X( P- M& H) X6 s0 P& x2 w. Xto go( } `5 p) ?: ^) s
4 h3 T# j# Z E4 ?
ask turtles [do-business]
0 o- B. W6 o3 X7 `6 Gend9 f# Z! @) D1 D) l
$ a. U, Q% T- u8 t! G; [
to do-business 5 X* Y! u; y0 n( k6 n) l# `
/ ], H0 v1 z* ~5 Q
1 |3 J( c6 \4 i( ?% n6 ] g! Brt random 360
: g& O) }# V E4 V
2 b6 B6 G0 N0 ~ w7 T, A) efd 1
5 o; v% P0 a# G+ L k& O3 a8 R1 g) |8 p8 f
ifelse(other turtles-here != nobody)[: S' H0 Y9 E6 X9 `8 s
; t/ x0 j! ]$ R6 L
set customer one-of other turtles-here. m o7 A' {( t
$ i( G+ b, I) m: c/ `# @0 l
;; set [customer] of customer myself6 [0 k. [$ c8 w U! |) \5 J. R
" S# r2 O, Z4 d" fset [trade-record-one] of self item (([who] of customer) - 1) z$ ~( F( M7 i# A7 x5 W( }$ G3 ~
[trade-record-all]of self
$ F2 \9 L# W3 v! i/ Y% @( ?* h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- J/ _; z5 K7 d9 j
7 F; d! K' ]! b- xset [trade-record-one] of customer item (([who] of self) - 1)$ P* g) ]* r7 ?* }7 f
[trade-record-all]of customer
; [5 ` H0 A9 Y4 ~/ @- P/ k+ C# @( }
set [trade-record-one-len] of self length [trade-record-one] of self
( k, E# k3 k2 [2 v( j t& T& M( b5 w1 \
set trade-record-current( list (timer) (random money-upper-limit))
" G& w/ p. y! z6 M' X! E4 K4 z* ?2 j* R8 G. ~
ask self [do-trust]( a5 y+ t3 m( ]* l6 z7 o. p6 q
;;先求i对j的信任度
8 I6 A+ _# A) G' }' j. \: z
& q. T1 o& s' e, \, _+ Yif ([trust-ok] of self)
' [1 P9 j$ f4 P( V5 l;;根据i对j的信任度来决定是否与j进行交易[' t1 o% F1 b# x9 P) `3 U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; v8 y& J5 T8 g) ]/ o: z$ g4 b `* \$ }" c: Y/ P9 c
[
: @9 X) f" }/ ?% Z4 x. K
! i: Z- x& N& R% {do-trade: b7 t q8 d' U- c
3 x" |- Z r+ f9 Vupdate-credibility-ijl6 S# ~( l6 E1 ~. M
5 W& h( S# S* ^+ zupdate-credibility-list9 O1 `! T( H* e" M6 c
7 c( A" N. n( N6 T/ L1 u& x% O% i2 \( c7 {. e) ]* a% ]1 U
update-global-reputation-list
! t- V7 H4 c4 z5 j
6 \0 F$ C; n: Qpoll-class
: @! P& J" m3 c, Z0 b
- H. w! i" p& H' i# Q. t/ _$ Fget-color! J1 L/ @% U# [3 m+ \
3 @9 M* A1 _0 D3 |0 g9 ~2 {2 T" ?]] y5 a+ L" ?* z5 r
, R1 E3 I( L, q" l;;如果所得的信任度满足条件,则进行交易
+ y% p* e4 V" y: g3 G5 s$ u" h4 l0 j8 i, \0 ?+ d
[
& K O5 ~7 F2 n y$ g& [3 c
1 r# c9 g! D* [. Crt random 360
6 T2 E7 `% Z( X( s4 y( ^1 C% @
, O6 X0 s. @* ?; y, ^fd 1
5 W4 q, [: x! ?) y% A1 j0 s
6 a; y- m; n0 E7 C]& e/ w2 ^* p3 Z* @) L
$ P0 F& J ]9 ]$ dend: i3 g: Q/ h9 V. i2 z
! L. o- |; _1 ^# `' [to do-trust * V9 D8 R( s3 \
set trust-ok False
# }5 M2 i7 z4 v: l
6 j8 e7 n) ]# B# a+ t' v: O
7 K. ~/ o( r I5 Olet max-trade-times 0
; M0 N( ?6 x$ h1 o& Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 C; }6 Q6 K1 N
let max-trade-money 0
! V, U' J! n& Cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# V+ X. R. J+ Q2 f' Z6 ]) ^, |
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 l2 [& n! a2 A8 C+ m" F
8 g V# _ h' I0 c, F
! @4 g# N6 s: g- v$ t0 ]) G1 C& l5 q
get-global-proportion1 c) j x/ t/ K" K
let trust-value
* i$ Z0 u6 p3 S8 }3 d Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)4 A6 m) B' y" ?- p/ f! ^' J
if(trust-value > trade-trust-value)
1 A. L) l+ j3 M2 i% {[set trust-ok true] ]/ t! \) F4 L2 C5 s
end
' T8 I( m" u& o$ E6 D
) k! R9 d, E# g1 i$ ?to get-global-proportion
1 Q! {% |* o; M& j8 E3 T+ U2 |! ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) f( X6 g( _: H4 s0 p[set global-proportion 0]3 y) E1 M! P% ^/ I$ q2 }" z' O- b
[let i 0
8 m' `& o! f3 N2 a+ qlet sum-money 0
3 }: J6 W* q/ x2 y; ewhile[ i < people]' Y& s$ ^. _ M0 y* f
[0 q, r! Y% ^5 c9 H2 r
if( length (item i
0 g6 r! z; f4 v[trade-record-all] of customer) > 3 )
6 l. J' G* F) e2 }& Z+ R ~[4 r3 v, Y0 u: Q7 k: Y* o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). _( N7 t2 ~, W$ m' V
] ]5 l3 l& W. o8 {) F4 A
]
2 H/ o6 n& A9 j4 `8 Q, N' k$ nlet j 0
6 P+ J# d D" i. tlet note 01 }. D, X8 s( C4 |- M ]
while[ j < people]
6 ]; y1 S1 X) b1 x[# A: b8 X1 a+ G3 O
if( length (item i& Y* H# C K& }: F: N. E
[trade-record-all] of customer) > 3 )' O6 |2 }2 X; I U! q7 w; f( t
[
8 A D3 V5 `" v1 v* g- iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 |, `: u9 _$ u" C3 l) n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' Q# w3 n- K8 Y' e7 \
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! M' Z* z( n" R* f( s8 H]
& l7 @7 o9 W( V: r# ~& \]
7 \, G. y' b: l6 N5 U/ L6 e3 Rset global-proportion note
( @3 w3 q5 a9 \& []
( w2 u8 ]( T- P& N- v: gend+ ^/ g7 q, Z) [- B: a
5 r& l; j/ ?) a' ^ S$ _+ y2 cto do-trade! a# B3 p- |; A" d7 i) I% h
;;这个过程实际上是给双方作出评价的过程9 g$ @. o! S/ @+ ?; B. c/ O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* m3 I4 B% J, G. o5 lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) j: w5 S8 S* X* p C0 K2 ^set trade-record-current lput(timer) trade-record-current
9 ]* F" ~9 I X' ^;;评价时间# N. Z' ]0 n/ c' A4 |
ask myself [
/ P* P- W {' m9 o0 |$ |update-local-reputation; P5 a: M) Y4 l: i
set trade-record-current lput([local-reputation] of myself) trade-record-current
, u; g, [% n4 i4 O; d# f8 @5 o- V], I7 B% e; M+ O5 j- _
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% v# i! i: ~9 d8 C, T
;;将此次交易的记录加入到trade-record-one中
* P* l9 |% D0 y8 C4 }9 sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 z( u' ~" l' R) a O( b/ L
let note (item 2 trade-record-current )8 s5 x% k' g$ _# Q
set trade-record-current# _& G( z t3 M
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 [% R' s6 |9 W$ l$ _7 k# V1 [set trade-record-current
d+ @$ U- ~7 Y7 [( y6 P, y(replace-item 3 trade-record-current note)3 o, a+ H. A$ I. i2 J+ A4 Y
# Q& j6 {/ |7 ^. K L/ l
7 k1 D9 _$ v, y4 s7 y) u. O8 @ask customer [
$ z1 i2 R @0 }7 ?, Qupdate-local-reputation
1 _" l j8 F. S$ g6 Fset trade-record-current
. f9 ]$ [, v6 ]' b( ^; f5 q( l+ L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! C' _" s" h# p, E- A& Y( b]
, x/ ]" [: R9 ^
; ^3 t2 v5 Q) `; F; `" q/ K& t6 Y; j
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 t0 f# A3 h$ J: D- z: I/ }
+ }' s1 ? a" |* }5 {; Bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* R/ @( F9 g6 l. y# b- V0 A
;;将此次交易的记录加入到customer的trade-record-all中
# J: s# T. H3 L' \$ Zend
. i9 b) a6 B% u2 L; f* f* X+ y/ |4 c. \4 r& |$ B
to update-local-reputation' o, e6 S& g% s6 b! A# d: W4 c
set [trade-record-one-len] of myself length [trade-record-one] of myself
* k" X* D3 |, T$ F% Z0 S* @1 K X$ W/ s3 @5 R
+ ~3 ^, N( Q9 X# \' e" m4 z
;;if [trade-record-one-len] of myself > 3
# D- T; {8 n4 h' \5 fupdate-neighbor-total `; G, B0 f: T0 r4 p5 g7 k
;;更新邻居节点的数目,在此进行5 L: I3 c3 Y9 d9 l V. l
let i 3
3 I* d6 A, c2 F4 f1 B flet sum-time 0
. Y L! u) [5 l! N' zwhile[i < [trade-record-one-len] of myself]3 {4 ]4 P: M; ^9 J, W
[4 \1 J8 [1 a/ T0 g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 X* [4 q- o/ [7 K$ s4 \
set i6 V2 b$ ~9 _4 @: f6 \# g
( i + 1)% ]( r; n6 k4 A. ]* |: S
]; x: @+ U3 O! E3 @- h, n9 M
let j 3
* Z3 \6 ]0 D0 [ t- W- R9 tlet sum-money 0/ U0 ?7 L) _+ }) y7 U
while[j < [trade-record-one-len] of myself]( c- l7 o; }2 P
[! @. s4 a: V1 [& O' e" P, m
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)5 ?6 @( u: C( O( w) G0 l
set j! P5 B. B- o# w3 \3 `8 i8 o
( j + 1)
* n$ q, g" i3 r3 ^0 v* i]( |' L* E' c- T
let k 3( R* }( t7 J, k9 _5 {" N+ M6 m1 j
let power 05 I, x; n5 O7 ^* A
let local 09 l2 F% s2 {: Z
while [k <[trade-record-one-len] of myself]6 m4 x' F2 Z9 @# Y5 z; P# z9 ~2 Z
[/ c# i* i0 v9 y7 d4 R9 P
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)
* O8 }( p% e+ |" Tset k (k + 1)) m* \: c! k/ r3 |- n4 f
]
6 C+ |3 K; _; i; G* ]( Bset [local-reputation] of myself (local)6 ?; w; v( L1 Q6 ]
end
2 E" X# I& J, ^' R1 ~( s
" W* ~9 Q, x+ w+ g* e( a8 `# }to update-neighbor-total6 j) q1 E! w, r( j0 G
9 Q2 k) M0 O) K+ Hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! j! v" L x0 \* }+ I' e4 ] i% \+ r$ l, o) W
2 k- |6 u+ h* v1 Q. N! Qend, c. Y7 Q- x6 C( E5 O+ {5 `
; j5 Q6 B; l0 K/ Hto update-credibility-ijl ; @# g' N! C, L2 U6 g& ?1 p. ?2 d
$ L; \4 v% }- [3 Y. t* d# H+ q
;;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 H3 {& C, g$ Slet l 0
9 m" u/ n) N! V, z1 {! Kwhile[ l < people ]0 l* R6 Q% c! ]4 \; E* y; z( K2 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2 B' @: z; `. Y& T0 t
[- y! w- s: ]% w
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 l8 Y9 w. b4 l5 L# k' B$ e) s
if (trade-record-one-j-l-len > 3)
, m k2 r4 b! f) g! a[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
7 m0 d# Z' R( f) e6 Rlet i 3# v& u2 a1 M. e3 J
let sum-time 0
, \+ ~0 v6 T/ S: j4 }while[i < trade-record-one-len]
9 Z: w; E4 J8 `: }: F[
$ o$ Z. m* F) F, ]. @" Rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& [1 x9 x- x! j3 m' n
set i7 x1 ~5 n; Q9 H! l9 [3 m; y5 l
( i + 1), F% ?( U1 R, p- w1 g, ^' @- u
]
" I7 X4 B7 {% Z" O8 p: qlet credibility-i-j-l 0
2 p H( t+ G2 f2 c+ p+ Q;;i评价(j对jl的评价)6 d, O/ C( Z) Q8 I9 h% r
let j 3+ Y* S/ b" y2 p0 L
let k 4: N; g7 G$ U A6 Y
while[j < trade-record-one-len]
) T; K# p. \6 E- b[/ X5 z+ U3 w2 j1 Q* T
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
) W6 ~) N. W* S0 j" b% `3 s- pset 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)
- Y8 ?2 m; T* p; V; fset j
: L0 F. P3 V) N5 b) N( B( j + 1)
$ V# T" X/ l$ e+ `+ N; ~+ w]% Z# g) f$ @1 }9 J8 t9 {( O
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 ))
7 v* e' q$ ^$ i8 P3 P( Z( C
4 X# _6 `$ g9 J1 x0 |: d
4 A3 z& A5 P9 h! O# ]5 X: c) y, _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 |: x# k8 e: ]; Y3 z7 e6 ]4 l; ^/ ~;;及时更新i对l的评价质量的评价 L7 c( Y3 h/ q! G" W
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ P4 D4 _+ ?% B2 C. w- _8 M0 U) E
set l (l + 1); e- N* m G# ^, @3 T; T2 z
]
( w% ?6 H, C+ Z rend
+ b3 Y0 a5 U# h" x% a
3 U |! E9 D( m0 z. b+ `+ ^: z8 Sto update-credibility-list
4 M3 S- B/ G* Mlet i 0
1 V/ Z& ^5 H1 jwhile[i < people]
' x# x# d* s+ A S[
. L* D$ T l* t$ G% S0 w4 rlet j 0
+ @- |! ~) w, W: l( ilet note 0
& T7 P0 [6 S. S0 P6 ^1 u' ylet k 0
: a: U+ e/ G- H: e6 P! F* h( J# j;;计作出过评价的邻居节点的数目. f4 v4 M& `& m0 [; Y
while[j < people] j# W( B. ]% f. @. {+ X6 p
[
, c6 K* }# c( s8 Z( s1 `if (item j( [credibility] of turtle (i + 1)) != -1)
! |. Y# L$ h6 I" ]# z" t1 i4 T;;判断是否给本turtle的评价质量做出过评价的节点9 p& I6 [ m7 H
[set note (note + item j ([credibility]of turtle (i + 1)))' i# B. j$ w! l0 N
;;*(exp (-(people - 2)))/(people - 2))]6 D3 ~$ m) s( E' Y% P' L& k
set k (k + 1)* W3 `6 b8 Y( y7 \8 a: g
]
" q7 Y" i0 Q" S- R9 [1 F% Pset j (j + 1)& W S/ D: y8 ]8 B
]! |; \" f0 b; d2 o: f
set note (note *(exp (- (1 / k)))/ k)/ y3 Z+ h! s% q- S% T
set credibility-list (replace-item i credibility-list note)
2 O: q0 A) c+ F- M3 k% w) Mset i (i + 1)8 H8 c. W4 Q! E0 ]/ G
]
* V1 d: F0 p- V4 k4 d5 C! Rend$ q4 v% H5 S8 ~, j- ?/ Y
/ p& k* r1 O% ]2 Y( o9 l4 V, L, U( s
to update-global-reputation-list: g6 y% n, |2 s4 ]: z) [# q
let j 0
, z; ^# J5 w, a+ W' u- wwhile[j < people]
# ], V( _! _( g* ?[# y' U% L. S. I& x
let new 0
; R* c P$ o3 f+ q;;暂存新的一个全局声誉" ^! ?/ v" Z3 t) h& }$ ^
let i 0. j5 x# N( J+ M/ w# y
let sum-money 0
! E3 y- Q+ \ Y' v N8 qlet credibility-money 0/ {* Y8 r! M( j; i& U
while [i < people]
4 T" K/ S1 b* d5 O& P0 K; d[
, M1 a9 j) ]# u8 g% Gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( K1 V5 q% B3 v# i" Q# v
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 d9 Q! ~$ N& M2 z4 A- ?set i (i + 1)
9 H) b- H* t# O]3 ~6 v! t p! U, a" l: S
let k 0
/ ]7 r! w4 l5 w: _7 \: h9 v- |- alet new1 0
& x& S, m/ B, c. D$ k$ mwhile [k < people]5 L" l) P' z1 y' D% I3 B/ P3 C- p
[
9 p) N3 Y+ m* ]0 v4 n/ Nset 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). {* t. k$ p3 m, H) g
set k (k + 1)( s) i$ T3 a4 w8 i5 k: R
]
6 g2 {2 i# k; r0 u: Rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 a0 s& J" W u, m1 S& G/ Z9 ^
set global-reputation-list (replace-item j global-reputation-list new)
; J9 ?. o9 w: z L& L4 M. aset j (j + 1)/ W" y1 {5 v$ g9 i
]
4 a& w, n- |( u2 hend6 w$ O$ ^& a; A. D7 u& c
* \9 b' Q( x2 n5 W2 v/ Y# o) U- n0 O; n! B* I* A _1 `
% b6 ^( F, Z: E& W* M
to get-color' J- R7 W* h h% D: d6 t [
1 E7 J' i( Y! j; w
set color blue
3 l3 @. j6 k1 ?; ?# r# `$ jend
. y& R! H0 [8 {; V# X p& H) `
; \, J$ D5 Z0 ]' O/ [2 }to poll-class
@4 y: @9 @3 O. l5 l3 rend( y/ u. ?" M( v) O
; ^6 T7 h% t% f3 F4 i9 A& q u; U
to setup-plot11 X. n0 y* x" ]: a7 R( ^
" |, }) i& W8 Tset-current-plot "Trends-of-Local-reputation"
- ]+ _4 ~/ z6 `! B( _
& |1 s; N3 R* J; q L. [1 mset-plot-x-range 0 xmax9 R; D, y0 u! I- x- t
' u5 n9 q5 l8 P) E8 B7 ?
set-plot-y-range 0.0 ymax
: m1 X; {" i: h% J0 fend+ K- n9 F0 k9 M) D6 o
( p5 [. f$ R- i
to setup-plot2
& x1 I i5 |$ \: G7 T& y \7 Q4 q+ g8 Z% P( v* _* Q( r
set-current-plot "Trends-of-global-reputation"( o. F/ u. F' N6 Q2 w$ Y; U- l
- Z' n4 f# X: X" h6 Z
set-plot-x-range 0 xmax5 ?, z& M# E8 v' ^0 \
8 ?$ B, o/ q# P% L9 F" yset-plot-y-range 0.0 ymax3 v" ?. O5 q& y% f: ~
end
* t. ~( s7 a/ B( ?' L4 t' v" L6 M' j$ Y) Y( }
to setup-plot3. y D7 B: D( x7 D
j! T7 \' P' ?$ m1 H5 g3 l, D
set-current-plot "Trends-of-credibility") K5 G7 g& V. y O0 G
7 L3 x; A; F3 ~+ ]/ \, r* P
set-plot-x-range 0 xmax
% v2 C; i7 t& m6 w# `# N2 {5 S% f2 @! d6 c4 z6 @; c( j
set-plot-y-range 0.0 ymax" [! ?! P9 ]! e2 W! c4 b9 G8 u! M
end
' j, L- w; D5 ^0 F& O# `4 a* s3 a/ ]) A
to do-plots
& r+ \/ F+ F! W3 Q2 c& Iset-current-plot "Trends-of-Local-reputation"
/ j: G) C c7 V+ C6 |set-current-plot-pen "Honest service"& A; @/ C$ Z T$ o5 x" q
end9 d9 N. i9 ]6 p, x' q
5 F" U* [9 X+ `; J9 c5 k[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|