|
|

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
$ F$ l5 L$ \# z6 y7 Dglobals[
{( u) o- L. T) O1 k( t9 m- l2 Kxmax/ i8 C% B; f2 U! Y) a+ S1 E
ymax, f& u) \ T r6 T
global-reputation-list
- h7 a: w9 D0 P! d
- @' n4 U/ ^9 C* a$ G0 z9 j% e;;每一个turtle的全局声誉都存在此LIST中! n' H: s9 X+ b! y& x
credibility-list
6 c" y: K5 Q, l8 _9 k! @4 n;;每一个turtle的评价可信度- Z0 w$ a% m2 F! X s6 }! L
honest-service) F7 r* @! k/ V. \, Z; q4 W5 {
unhonest-service4 z( b ]7 v3 E$ s, k1 ]
oscillation* _8 q: Z* o# c; h! a3 t8 w; O
rand-dynamic
3 w z& p K' R. J6 y]5 }- {7 T; q! m0 J0 \
; W5 C4 {( t* Xturtles-own[
! h5 Z7 j% `7 W( X4 [( W; v/ Mtrade-record-all/ `; C! [- a( f7 ~/ z n6 B# k
;;a list of lists,由trade-record-one组成1 x- a6 x. I6 o
trade-record-one
# F6 b& V' y7 u7 q1 s5 V: m1 I. 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; e% D0 p5 m" F6 c& `: h1 ~
0 q! Q- F# @6 V- ]7 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]]3 o8 \) S/ A# B3 M& ~0 Q
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]
* Y, C7 }& g! r- ]0 Jcredibility-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
2 u; \! O0 r E) H; g5 R0 S$ |neighbor-total
+ x4 {+ i* G$ S# |3 h;;记录该turtle的邻居节点的数目 X( T5 \/ _2 s5 Z% Y4 J" [. d4 u Q
trade-time2 W8 `% [# @& u. J2 ?: d( p
;;当前发生交易的turtle的交易时间* {) n+ d: |5 e: F/ N7 h
appraise-give
" K7 S% r/ k/ a+ _8 @5 ?;;当前发生交易时给出的评价- N" q4 N' W, A; R, X" v' b+ A$ j
appraise-receive
" J! q3 @2 R0 j+ |8 e$ o;;当前发生交易时收到的评价
( t! b; K; D" Lappraise-time
0 v& d& t+ ~; W n0 \;;当前发生交易时的评价时间9 m+ S) c b' G! F M# w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 t2 T6 D' k, F/ ]& @ Z. dtrade-times-total; H; G5 ]- V6 v8 @# W: b/ ]/ n
;;与当前turtle的交易总次数3 b$ t ^. U- ]; W3 t! S
trade-money-total
1 M1 {9 e5 p3 q;;与当前turtle的交易总金额
" j4 f/ E( j* Dlocal-reputation" L6 x7 i* K# a, n
global-reputation
# n3 b& f0 x8 W' `% q' q6 J7 A; qcredibility
/ x; }' Z' d+ M$ b/ ]' {;;评价可信度,每次交易后都需要更新; Z3 j% O2 r) `4 H" Q) d0 {! |2 ]
credibility-all
# K* c% m- t5 H8 Z R;;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
9 I1 H. K+ `2 I9 B8 H" F3 a
. I8 I" F) c: f5 k4 q( V+ `' D1 H! T4 F;;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
7 {" n; a7 N! i- W: a9 c/ zcredibility-one
2 i. a( _) k) W1 e" y;;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
, K4 \) c7 h% O S: ]6 u8 q8 Q8 yglobal-proportion. n+ q& |5 b3 {+ \% Q j; m
customer
4 x7 n* h( B" x& scustomer-no
* d& q+ S6 ^4 p, E3 ^/ o% Ltrust-ok# i9 u. ]1 l; C
trade-record-one-len;;trade-record-one的长度
0 n& p% q2 T# W/ M7 J1 H9 o# o]
( u& p+ G. B) v
# p8 }" n6 k8 B. P* z* _. M;;setup procedure( P, b1 g" Z$ C; b+ l D
! Z; L- p. [% H" B) i7 o* M" lto setup
5 y: Q ?1 m) H' Y% p3 h2 v1 K& Q4 i0 [6 a5 q
ca
% y3 P9 K* G {! M7 z4 b) C" v, Y; b& h" V6 G% I# X, _1 q/ C
initialize-settings8 Q5 O& |, ?& M) T
) o7 ]: H$ C0 p2 ~/ t" Acrt people [setup-turtles]1 J1 F2 B: C/ y, w3 `
# u4 x6 N; a5 Q7 y
reset-timer
) w* L ?: H9 _9 c o N" _9 o
0 l: G) M% W- K. U5 i" `poll-class
( U7 ^6 h9 t" ]# g
; |& t6 M6 k( E' W V, Csetup-plots
$ r: z0 p i& z5 Z+ F4 I$ j8 x3 k. A( H Y/ u; d; F6 s
do-plots
/ L3 x7 ?/ ^- T7 g( ~: Kend
2 Q1 ~! A7 q2 p, W0 g& S9 D( m- T8 {' y( u, [0 W
to initialize-settings
3 ]- {( `: ^' S$ b9 B9 |" t
3 d: C; A; b) o8 v4 R/ K2 eset global-reputation-list []% h6 S0 `. b. k+ o& {
8 @9 R0 e. _% Z
set credibility-list n-values people [0.5]1 g U0 @: F. j' C9 H7 D* X: r
7 l. e( T5 h# E
set honest-service 0/ }2 s K& M+ K! w, V( ?
H: \+ ?9 V4 F9 c: Wset unhonest-service 0/ x0 V; ~' f0 Q1 s6 g
3 p" ?, H' L9 U: ^5 C# l; Q, ?1 F& c" lset oscillation 04 O1 H! H7 _7 d. R2 q$ d
6 S, ?) K8 j, s' {- H2 c# X
set rand-dynamic 08 m; Y0 O( u" ^! y9 u
end
: q6 A% }" D+ t7 ?8 e& F. E% [/ f! Q. i6 t: X
to setup-turtles
# d) D) g* U+ L/ o" b8 C: d5 Yset shape "person"
' O/ R% s* j( Usetxy random-xcor random-ycor% K& G1 U p7 ?/ G* i/ X( v" b
set trade-record-one []0 @* x$ A4 b& @! w
6 S/ ~ a1 q" o2 }1 o- W
set trade-record-all n-values people [(list (? + 1) 0 0)]
$ Y9 U4 D- _0 X7 ]/ \
! I- @1 r( q% }3 Aset trade-record-current []
+ E8 R M0 i8 ~7 lset credibility-receive [], Z1 ~, c, h: T. t7 u Q
set local-reputation 0.5
; n" Q( u E9 t2 Eset neighbor-total 0* U/ o6 Y8 F6 P4 ~3 G7 H
set trade-times-total 0 N) k7 E, X- B
set trade-money-total 0- m; ?' m8 N) F( @, y
set customer nobody7 f! K8 u( T: B+ A
set credibility-all n-values people [creat-credibility]
- |) v$ n/ Q- s0 r; u- Sset credibility n-values people [-1], k: d0 S; x- X$ z' R' E; t
get-color) Y: i7 n" m0 P1 z4 x
# i2 c* [" c9 y; X# iend* X1 J. ]: _6 T6 _! J
8 ~" r+ ^. \& N% ?) r8 fto-report creat-credibility
. F0 D% b7 ~; ?; creport n-values people [0.5]2 @9 a5 ?: J/ Z% T3 \$ f
end
; E7 w8 d- M" Q* b+ x( p
2 R3 z c. l6 \+ q$ ]" Fto setup-plots
; @# L- {* C. f S( U6 o1 R: S/ l- k3 p* ~1 \9 U
set xmax 30
6 z) {& I3 q* ^( B" B4 B2 b! U9 y# s1 u" N% D( S
set ymax 1.0
% X6 Y' h: a3 ?) q( O+ m, \* \2 K' y5 u0 A/ o6 S
clear-all-plots M# ^1 g6 Z; d
' r+ B" z! h! W3 N. z' asetup-plot1
, K i! V. w# E- B( T' y9 q0 h/ `3 J( L7 @. ~# }
setup-plot2
' C9 @2 l! D3 O0 o, K8 w2 Q+ D) a! S* z7 F2 j' B
setup-plot3
' m1 B8 A: a, x0 k! oend5 f% l8 x' `) _+ t
. d0 _, r# J* t/ K7 Y6 Y
;;run time procedures0 j9 p4 f+ `6 m
6 c S) Z+ R! e& |
to go; I; R2 q. n. ^. l9 x
1 N( C* I" j# w' sask turtles [do-business]8 v2 e+ ?" t% X6 ~' f K
end
) X" b. T5 l* }9 r6 V% V, n! I# K. N1 j% S0 x+ N0 ?* J, O0 P. Y
to do-business
' p; R9 A$ o' F6 }: c* \' [, M' j2 q7 v* F% m1 B3 T' Z& c
+ |% [5 o# [" I5 X! |rt random 360# A4 K0 }6 _' |! q2 O) }" a
1 h+ O6 N4 B% C0 k3 lfd 16 F$ h1 _8 M2 f$ N7 M
/ x3 \: v' A4 A2 Pifelse(other turtles-here != nobody)[- O4 M. y) s1 D0 e- S/ U, f* I
% w0 c8 x2 u! B t7 A4 O, y
set customer one-of other turtles-here: O+ A7 P$ |. [) l
5 F8 s5 k0 z$ ]. N, _
;; set [customer] of customer myself$ k* {/ h* j0 K6 c0 D
2 @" r0 R3 U$ v/ q& g G' nset [trade-record-one] of self item (([who] of customer) - 1)
, c% U3 X5 Y4 P8 w[trade-record-all]of self9 n0 K% t" F, W
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 ^6 P/ Y U' A- T6 r8 R3 z# e/ P! c5 R( a- b. f4 d# Y
set [trade-record-one] of customer item (([who] of self) - 1)
, `/ A) P" u$ S$ ^5 D[trade-record-all]of customer. F3 L5 e8 B- Q0 b4 U3 l1 n
% w4 W1 @- r# j5 l! pset [trade-record-one-len] of self length [trade-record-one] of self) }# q4 f# ?/ } ~- B* F+ ]- x c
. Z, }$ `1 P% R6 Y, ~* j
set trade-record-current( list (timer) (random money-upper-limit))
$ _, @+ |0 Z2 R- x8 [ w) B3 g+ q2 ^; t7 U3 p& W9 \
ask self [do-trust]! e" S A( s ?! F4 c2 f
;;先求i对j的信任度
$ N* I3 t, m# ~6 J$ I# K
- _( ?& N0 r9 Q$ c! ]1 s0 E' N: I+ \if ([trust-ok] of self)
: D9 l( A6 ^8 N. i" B, `/ i;;根据i对j的信任度来决定是否与j进行交易[4 z- g& Q; q) ^- h! F8 ^# k/ W
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 M% Z: Z% F- R* ~, m3 f6 G
0 M4 y; s; S+ U# g[5 L5 S `: q$ w. R# N) p
1 D' X: o8 D! k1 {2 Y" Q$ u
do-trade7 ^; |# [7 W2 \3 v$ I3 R
9 l( x8 K1 U3 O' b4 U# Z
update-credibility-ijl! g6 m( N+ \" Q6 |& D" c8 {; L; c
; D. Z" A( k* l R+ ]
update-credibility-list2 }& {4 b( N- ~# ], s, o
* P0 _5 F8 e; L- j/ g
& f( @# k( H Y& bupdate-global-reputation-list
7 A+ X' A" {0 f! }9 C5 Y
" P, P E. B2 h, I( e# \poll-class% e% J- x! X, I8 B" |
& X9 r% i) K4 d0 D" pget-color' Z9 o: v5 E5 z) t
4 U8 E0 m0 y1 C# R- h0 v]]
/ o2 H E& s2 p. }1 a# V. V# g) I6 k8 g4 X" ^/ \
;;如果所得的信任度满足条件,则进行交易/ r1 n; m* Q! p% n
* Y) j* r2 U5 B6 J" d5 O
[9 W0 ]; H' g3 `
. a( N+ W" [* A8 ]( y) s- @) D
rt random 360" k; C5 t& |) Q ^
% h+ ~5 A; J+ b: u7 W- B% r
fd 1$ ~& a' }; n3 C7 {6 W2 m% L8 t& b% }* h
+ f9 G3 @! h' s' x( m
]( q! T* u) [; Y( f3 |+ S
# f; ]+ A4 ?5 Z. d# k
end
( Z: S/ I5 b& S" g& h! V8 a- Q8 B2 d w$ G: }' o- [/ A$ H
to do-trust 9 \2 r9 N+ O: j: {, U
set trust-ok False# T. W [1 c3 ]9 W" L
- C" B7 y; g8 e9 `7 e/ C
8 o$ Y7 A0 k7 Rlet max-trade-times 0/ m8 y' }8 `) o' w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% ~! {& D; o1 b5 M3 l, @
let max-trade-money 0+ w4 b, o) Y6 _( Z' I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( w0 V7 X$ z0 a9 e( @3 Y7 `- k, D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 p8 k/ c$ d: r# K
8 l1 \" _6 P- K; r( [/ h
- o7 H; K$ e5 f: X! V2 a$ }. {get-global-proportion7 {% }0 }. P6 ?6 K9 Z, s6 a$ _
let trust-value. j2 n" p0 a0 w: P: `
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)
# L& I5 S0 j! [- y8 vif(trust-value > trade-trust-value)8 C; o$ O7 k- w3 |6 j5 Z) T
[set trust-ok true]
9 T7 n+ Z+ U+ ^+ C5 ~2 Yend) G' y4 z4 P1 ?7 ^% ~! V. k( T8 a) D) h
% j. o8 f8 j2 E, c( h; Rto get-global-proportion9 {( @8 U, \* V+ R* \: p- K
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! _+ e6 _. w+ u. L8 ^
[set global-proportion 0]' h8 l7 s( J! n/ S/ Q
[let i 09 x J: k$ X* r, K) |+ v, {
let sum-money 00 e- c3 _, S. a/ o# C
while[ i < people]+ f, \+ x4 B% y8 j, {/ D0 l0 E
[" ~" n' v& m7 ^. x; M
if( length (item i
; I9 z% _; ~5 Q! d, I) H[trade-record-all] of customer) > 3 )
, F$ r. Z9 g1 Q. L5 G2 I[' U' |& |& ~. o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 L+ A; `: V! J5 J3 G( p# H]
& z- D% p+ e4 i; E] {5 v+ i% B1 P4 y. }
let j 0" X$ _3 G" s8 y" F6 B4 x
let note 03 S3 k7 ~5 l9 ~
while[ j < people]0 g# U$ u# P3 f8 n: [
[" d" p% g4 p$ _1 N9 \1 p: T$ i+ y
if( length (item i
+ q1 j6 K) _+ Q& G$ m[trade-record-all] of customer) > 3 )
R+ ^, A0 J5 d[
s- A* n, r; \* u! yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ W, K% x/ _7 Q5 ?
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 W Y/ a3 p8 T8 V, o1 |[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 L. f! {9 [" P$ `]- a0 p1 R. [8 ?
]5 W, e; X7 ]0 t0 [: t( K( U$ l$ A A
set global-proportion note
) W4 l/ p1 F4 l4 l0 m8 ?]3 Y6 Y$ _' }+ [ T o! _ H* M
end7 K, [# V% [( `9 r
) b3 C u2 g* U6 f) ~& Z$ ~0 t
to do-trade
5 D2 _: o7 {7 n" Z. e) I;;这个过程实际上是给双方作出评价的过程2 V1 T3 x# e3 z. m1 b- d: H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: c6 |/ k; G, o, G, s: n" G: P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# ^" u" B* V5 J- D: n- n3 g6 T/ E
set trade-record-current lput(timer) trade-record-current7 q {9 ~2 p( E3 M0 M6 F1 @9 z
;;评价时间$ G4 B8 N" k% O7 P
ask myself [
`! V; U4 E" ~" uupdate-local-reputation
& j. o4 L" R' B9 C' E0 |' mset trade-record-current lput([local-reputation] of myself) trade-record-current
7 r+ `* J3 D# F9 N3 F" \]
# j( B' S- s9 h; c! Z( r7 Mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 Z" n7 b, m: K% N- ?+ u( N/ x;;将此次交易的记录加入到trade-record-one中. o5 _* f# Y) d/ W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 V# S9 @1 w# d! N# hlet note (item 2 trade-record-current ). ~; P2 G7 O- n! _ _% \7 f" w C$ x
set trade-record-current; a9 X/ r9 D; ]3 y
(replace-item 2 trade-record-current (item 3 trade-record-current))
; X& N1 M6 t* T* z, L/ Nset trade-record-current3 a& o4 o1 c* y0 k3 o" F
(replace-item 3 trade-record-current note). t7 h, v9 ~* y7 `9 H( O4 ]$ K
; ?. ~. }1 n3 p) q- J% g, Z) W1 T
9 P+ ?* v) P1 a& [
ask customer [
2 w4 h2 f# X, O8 q3 a4 uupdate-local-reputation
& J0 J+ R4 S9 I8 H9 P( D9 q5 S- T; |% aset trade-record-current
/ L) `& P- O8 z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) Y6 g: S7 r$ Y. u, ~5 }1 c
]
& k- P. D% l8 K. y2 C& C/ ~
: L9 I& ]: }- ]& _" P4 w! R" a) ~- |$ H6 R4 Y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 ]( F7 Y4 W+ n" u2 H8 B& q( f6 G- c, M1 {3 {
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 T5 q7 C8 d3 u$ J9 W
;;将此次交易的记录加入到customer的trade-record-all中( X! C2 C& c( `% y
end
6 f) V8 s+ K0 g- y8 p N
6 w5 r+ K( e- f" }0 n, rto update-local-reputation
6 l8 A# O- O4 dset [trade-record-one-len] of myself length [trade-record-one] of myself
: D* `0 |4 |: t- W
8 Z4 U! s" S' W" _' i. w& w
, R- G' W9 G% `- J) m;;if [trade-record-one-len] of myself > 3 4 ?- S6 j# \& P6 F3 {: D
update-neighbor-total
8 [! ?: V+ z7 V" O;;更新邻居节点的数目,在此进行
2 g" P6 I8 s& T: d, wlet i 39 y( A; a* p/ m8 ^+ T# d$ z0 B
let sum-time 0
4 M, E" s/ ~* n7 V( jwhile[i < [trade-record-one-len] of myself]' g6 o6 E; g/ ^+ s5 L' m8 \
[
& F4 ~) f: @: A* P7 e5 aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- ^/ h9 r; Y# F8 y5 A5 G: Qset i: D8 d$ z9 p$ D9 ?) b
( i + 1)
% M' \; l) M$ e# q' _- h]
( N: u! H( E/ v2 B. F, g$ }let j 3
; ]$ }* y+ \ Q/ Y2 @% @; c5 f4 ?let sum-money 0
/ Q# v$ N4 V- t6 M+ @while[j < [trade-record-one-len] of myself]
, q$ W3 [3 @+ g2 a[2 Y8 G+ \) w, ?& z9 z
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)
. N7 M5 F/ |. y( D! O' P$ eset j
3 h! Z) ~' q: i6 e% Z# A( j + 1)
4 M# D- o9 Y7 x" J1 X2 F]
; |( S9 r+ K3 F% p/ `" jlet k 3
1 I, N0 g+ u# y4 rlet power 0+ R! |7 P' g2 k3 S' i
let local 0
1 I2 g/ B# N: o( k1 Mwhile [k <[trade-record-one-len] of myself]
# m; Q& M1 R7 v4 e4 N[
# Y; d/ G) J# d4 S; `/ Gset 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) 5 j+ b. t, c1 B& m6 S; I% `: x( E
set k (k + 1)
& y8 M; ?! Y& E* o/ h% M5 T]4 o; n: o% T7 F; b8 f; v0 ~0 j
set [local-reputation] of myself (local)* Q6 E4 K) V; ]5 \& T
end
4 y I0 P! h! o- g# E2 Z- j ~0 M
to update-neighbor-total0 n0 c) }0 s* r6 l
$ p* j' }9 a4 j+ v6 ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 J0 K$ }! B# h! p
( v4 u' [, S# d0 C0 t
9 Z& u; O8 K9 p+ c7 J% kend& D; h Z1 U$ ^ ?
/ i; m" x, H/ `# hto update-credibility-ijl 7 A2 ]2 D7 B# U0 V
- H6 X: r# I* w- ?! S& 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。7 F* I' Q- {$ T b
let l 0
7 L& p1 a& M; c: k2 J( D- awhile[ l < people ]
' d0 q' _9 t) A- X6 h. 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
% v! v2 J5 z4 c: V( |[
: I" C+ p; W* k4 ]. J1 t* x" K+ glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 f1 v; `3 z, p
if (trade-record-one-j-l-len > 3)
( ?7 L g; Y7 U0 P[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" L3 o, [' S. X, a9 K
let i 3
, R2 N" o, _; Flet sum-time 0
( M( S% ~9 |4 f0 Bwhile[i < trade-record-one-len]! ?- ]. o4 y$ ] \& c# Z" U
[
3 u: ^# ^4 p# e# F! Z7 {set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; r' j' r4 Y6 F2 o0 @set i; G, _( D4 I: A
( i + 1)' `% A$ Z) m4 _( ^+ P
]; a) [* S: M, j- X4 i! P$ l
let credibility-i-j-l 0$ A! F4 b. Q% P! a
;;i评价(j对jl的评价)
A( m, s' T$ m5 a+ Elet j 3 r: \' P N5 c/ K6 `7 z+ l2 i2 D
let k 4* u. z+ n8 F) `- w2 J% _" K3 l- y
while[j < trade-record-one-len]/ a" f- O4 G1 P2 T2 f0 r
[
7 f) o: D- I6 ~8 Owhile [((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
; s! `$ n" B! ?- Bset 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 D5 n W5 [6 y! i3 b. C" H$ |$ r
set j/ g; s4 T! s, {& `% i9 S7 B8 ^0 A
( j + 1)
\5 `6 r& u- o/ J! K) p]
( X6 b9 U& O: [9 l. P0 u. I0 Q5 qset [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 ))& q4 _3 k" e) Z9 V! q# A' I. B
& G2 h2 Q; p, ]3 r0 g$ u
# E/ s4 ]: k; [3 F4 W. x2 g' ]let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- `, z# p. [- G2 e5 B: i;;及时更新i对l的评价质量的评价
8 w* P. b5 j5 k4 M. M4 Fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* h" z* U3 i1 q" b H1 s; \5 @' [set l (l + 1)9 ]2 {: z, N' e& z
]% }4 a. |4 L% E% g7 f7 L! E
end: v2 O4 f, V7 M" j+ k
# U' H, A6 Q. X8 M9 u7 C- h
to update-credibility-list
4 m+ G1 ^+ {# m, Q/ L5 j' `let i 0) \& Y9 O' Z; L) f8 v! d' r
while[i < people]
5 T( |3 w8 V; q; a3 ^4 {[
( x# D! p( w0 x8 f: [ |let j 0
) w/ g% f. ]3 Llet note 0( L% s, `3 E' R* p4 r
let k 0
6 O z& s* h( b;;计作出过评价的邻居节点的数目0 j: V% A# p% e$ {: s+ |7 B& J
while[j < people]
* ^- k; Y' S: Q! W[
A3 I/ x0 l: Wif (item j( [credibility] of turtle (i + 1)) != -1)
, l, {% ~, C0 Q/ s O: \! M+ u;;判断是否给本turtle的评价质量做出过评价的节点5 e' G8 R+ L/ S: \( F& o K
[set note (note + item j ([credibility]of turtle (i + 1))), C& y; k/ t$ a7 _& V' y
;;*(exp (-(people - 2)))/(people - 2))]
/ h9 ?( d- I' u- K9 }; g& L& Y# Rset k (k + 1)
9 N- m/ I/ I" _1 J# A' _) v]
( w A% v: G, a: j& W( h/ Jset j (j + 1)
/ e; h& r" y+ |& Q]
* a. {1 O. Y& \1 D: P! Hset note (note *(exp (- (1 / k)))/ k)
9 O: ^; @0 H# d2 L) p9 X4 }set credibility-list (replace-item i credibility-list note)
6 m- x0 G1 |2 T( |! x2 Z8 bset i (i + 1)
; i8 w( r S% A8 C9 y]
" p* R' u; g9 A1 X- h4 Aend
- J8 W, v- k; X* a
2 V" y% v5 v8 ?$ a$ N! b* s! f* v1 @to update-global-reputation-list: `+ Y% }: u) V6 ~+ ^/ q3 f
let j 0/ `* D7 p5 h/ q8 w
while[j < people]
3 o* b& g9 q- j% M5 G; }$ R[* d& h7 y- i7 m' X" M: T: a/ R; B
let new 0$ J" S$ [$ v$ v, c
;;暂存新的一个全局声誉5 j0 m' C* L* T6 M8 q; c+ `; H# g
let i 0/ ^9 O% Y* ]7 a( Y; k% L2 [3 V! N
let sum-money 0: U: ]' g% J \
let credibility-money 08 d# E' W# b# E1 \, I7 I3 j
while [i < people]
5 B# K& |* ] Q0 `" q; V- W[
2 i; o. b/ Q' P( z% l, yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 }7 u- y E5 A- g
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ H1 ?( N% ^$ r3 V) n: iset i (i + 1)
9 z- d$ C2 b# }: X) N5 j]$ ?3 `3 K4 b! g, |+ R( ?; _
let k 0
V) y- p5 ~" u+ p6 Y7 X4 olet new1 0
2 d$ L+ d& _, b5 iwhile [k < people]
- U U- {+ s W) J8 h5 b; Y- S" G, G[, k9 {& [& @2 v- w
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)
3 g6 A( T% C: _/ ^3 @& Mset k (k + 1)
3 O* M2 P V8 x! q5 e]3 n3 r a. t2 v6 j0 I s6 B
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 j2 m6 Y1 o1 K l/ H' N: f, \
set global-reputation-list (replace-item j global-reputation-list new)' W, m. } b3 Y* w4 D
set j (j + 1)4 }' c9 Y6 Q0 Z( T# x
]
+ `3 Q. P- _5 K8 uend7 G+ z4 n) e* j4 Y0 `% \; D
! \ ~8 P1 c2 x, I
. ^9 {: h3 a5 T8 l0 s6 u; d6 o
8 ?+ A4 i7 ?; F+ l( e6 l5 D s
to get-color
5 A7 _4 W5 S' X' p) ]5 V) K3 `
* U1 f3 t6 @% |! Eset color blue* i9 l$ J" w( J; x) [6 r7 P- I. q
end
+ Z, i( V; b" o0 r2 x& f
8 W8 j' ]1 A3 X' tto poll-class2 k7 C5 a, N5 @* {
end
% ` m8 c, g# H* K" I' ]+ }+ ^! Z; G) |; A/ f: b1 Z
to setup-plot1
; @. p: F: }: S) N6 a; S
2 [# T2 o l# u) Zset-current-plot "Trends-of-Local-reputation"
0 s* R/ i+ U2 c
2 B7 d6 l9 L5 ]5 t, tset-plot-x-range 0 xmax9 L7 w' b4 r5 ?# F$ z) p
" A$ l% S- D& J2 R# b
set-plot-y-range 0.0 ymax5 `, g' N m4 e. q4 ~4 {
end9 l% N) h4 r- v3 @0 ^. {8 p/ O; T
8 a+ I$ D9 \/ {: Gto setup-plot2
' a. C1 I1 u1 i& q0 Q2 e; |+ S! d: ?9 o. O
set-current-plot "Trends-of-global-reputation"
6 l/ ~" H0 o& t8 O! H7 }3 e8 h4 ?$ J" `
set-plot-x-range 0 xmax
* \; ^) @0 s' ]' I( \. [" s, j1 `) e2 ]% \4 @
set-plot-y-range 0.0 ymax/ M9 q& ^( ]9 L: O9 c$ v* Y
end
8 r* {5 i. g% l9 P' i; o7 \9 j* Y9 K7 q
to setup-plot3
* \7 K$ H& T, ]1 k" v
! i* N3 C5 V/ @set-current-plot "Trends-of-credibility"' S- M0 c& {5 q
B/ C: j2 [* A+ L) f7 q$ {% j0 ^! p
set-plot-x-range 0 xmax: \+ v; \5 N( Q3 F& @
. Y- [+ t2 _" ~4 B+ m. Oset-plot-y-range 0.0 ymax
( v# a! C: Z1 N6 Q) Xend
+ G2 p$ I+ w8 T( {. l3 ]
# v; t3 L/ Y% w p$ rto do-plots/ r0 J( S! {! O* U
set-current-plot "Trends-of-Local-reputation"; z4 |2 S+ L; Z$ M% {. w. N2 b
set-current-plot-pen "Honest service"6 Z% c/ I" F& m5 c- b# n( s
end
( W0 K/ v- i7 X+ j: Y) W" G" B! b, _
[ 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
|