|
|

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$ D) C+ r6 j% r, x$ W1 w+ U j
globals[$ c; {. Z/ w& V
xmax
! Y- ^! I/ V( b( a, p0 @0 bymax5 v/ d& g9 A5 k& c
global-reputation-list
7 R! i8 I0 c, d' @3 G0 `% c& P+ |9 n7 x1 g! L2 W
;;每一个turtle的全局声誉都存在此LIST中
! p# r% y1 Q7 @& Ccredibility-list& w- V8 P4 A3 a- J @8 U+ f
;;每一个turtle的评价可信度
2 o, ~0 v; Z( u) f+ R) c) i; Vhonest-service7 ?$ W5 M) A3 B( _) V) ~( V5 d
unhonest-service; \2 f& a* f" q8 @+ Q( C, L
oscillation
% w4 f2 t6 f1 M& I6 u Y* yrand-dynamic
& s. v0 X# E4 O1 \! {5 |0 e9 {]
. ]' F; M" d. v7 o6 L3 Q+ V7 Z5 r6 X$ u9 J& z" f' P6 e
turtles-own[0 H' ?8 M' ~0 d4 q+ D; a$ C* U
trade-record-all
( y3 s- A+ ]0 C% K" ^# P;;a list of lists,由trade-record-one组成
$ a# J3 v( T2 z: G ]3 t" `& W4 htrade-record-one0 ]5 H" r, g* f9 k1 j- q
;;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 h2 Q6 Q N2 [% y: a8 q2 y: u }* @ a0 A+ S2 M* ~* g5 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]], d6 e' t; f% |5 P* y0 n! d
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]
/ g8 N) O+ A$ I0 Y. fcredibility-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list7 b) k4 U8 l/ ~9 m/ _* U
neighbor-total
' N9 S. c8 ~% y! Q, I% m i3 k;;记录该turtle的邻居节点的数目
+ W! ?& r4 G& P8 o, T% v# Ttrade-time8 D, q. a9 M. I+ I6 [/ ]( G, S' o5 ?
;;当前发生交易的turtle的交易时间
" H0 N4 C8 D v8 }$ z/ j5 }appraise-give* `* K; M* a; j) ^0 q6 B6 S9 Q$ F
;;当前发生交易时给出的评价3 l6 ]. c8 x2 ?" q2 O3 H
appraise-receive
+ H. U5 ]7 J y8 Q/ F; n, V;;当前发生交易时收到的评价2 Q* k7 B& G4 Y/ h
appraise-time
2 {1 H$ a+ j+ s;;当前发生交易时的评价时间
; m5 C* [( W& ~3 b! Olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉% B. |: [4 v- J, y3 P7 ]
trade-times-total9 E+ ^8 E( {3 d- ?
;;与当前turtle的交易总次数
0 E4 c/ L' C7 R. W: dtrade-money-total+ t/ ^4 D9 b% i" ~: U9 V! u& K
;;与当前turtle的交易总金额
! i: e& I4 ^9 G) ?) flocal-reputation
8 K, c: \4 j2 o7 ]9 N, e1 Dglobal-reputation0 l; G6 `( \, [0 [0 i' H# d( k6 x
credibility3 n: o T& f: d; L+ D. Z: x
;;评价可信度,每次交易后都需要更新3 \; y. Y r# g& Z1 A9 d
credibility-all
: t! t, |. D% `;;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
+ x4 X1 d- V! s& S0 K
8 ]4 Z# {5 ^# a5 q! i% k( P/ s;;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
/ [: H8 p0 c' _8 z, qcredibility-one1 L8 l' D: ?8 D7 C
;;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
1 F5 l3 i5 `' I) h, R* aglobal-proportion
1 l! z. L: t* t# Gcustomer
3 X( W- u: d8 Ycustomer-no1 d/ }) p. Q9 t& |' u- `5 i$ |+ X0 R/ T
trust-ok2 r2 S& y' `, {
trade-record-one-len;;trade-record-one的长度
1 S; w) ~" F' z" [2 a]
8 j' N9 m+ }+ @( `! i F1 R4 [
9 N' z" `: k4 O& A6 c4 `, e;;setup procedure q7 N/ A8 J* F& O
* S k Z+ A3 x; D+ G) a+ |+ gto setup/ q, c( s+ _# d
5 z2 O$ ~6 k: l' {# {1 R, o# W
ca
* ]4 Z$ {$ J0 T; L( D2 _8 M
5 u2 Y* p; J" W: p, Linitialize-settings% P0 L8 r9 C* m9 p3 O9 }, A7 C
% M% I, R5 U7 ?# c% ?4 A
crt people [setup-turtles]
* r0 I6 s7 O. S: O9 Y( j) s/ F9 u6 P- }! W; u
reset-timer
3 q0 q3 ^* Q9 l7 f( i% e
+ J. S9 p& k# p" q: {poll-class7 f2 k' I( s. V, h4 ~* ?
1 k) y/ C$ b5 h9 |) P6 \
setup-plots
& ^1 d) g" U+ D2 G$ O4 L
. h* I/ F1 N# `4 Ydo-plots* i# ~5 j K! T% Y/ m9 m
end9 l7 i" b+ p+ j! o s7 _
7 w7 B o2 L% ?7 m* mto initialize-settings5 |! m5 w& V7 b0 V( d$ T5 d- ?
% Z. b" \2 o( }- R! t! K' Q" G
set global-reputation-list []' R* r! D7 e6 o4 ~# z/ N
7 {3 Y9 s) L. }
set credibility-list n-values people [0.5]& r+ d# H9 A; _# U; q7 U; o, P w( W
: {' `7 \+ b' }" p) G5 [
set honest-service 0. h2 q3 C1 Q( z( z& u6 o
3 s t- G+ |, [2 C
set unhonest-service 0
: X$ b: o- J, }. _, a6 D* t) _6 W( q
set oscillation 0
. S, d4 Q Z4 O4 S( j* p( i* a8 ^/ Z
set rand-dynamic 0( H) z+ ~2 X9 u0 S
end2 R# K+ f* o( `6 F2 y
- z: L- V" c& Ato setup-turtles + ~9 T [/ Y/ G* v: e0 K3 _0 Q
set shape "person"
; }4 j, o+ x' I& J* rsetxy random-xcor random-ycor/ ?2 W+ Y4 W6 H: Z% _: k
set trade-record-one []; O3 [& ^# a1 U6 p
) \4 ?9 m: f5 I2 \
set trade-record-all n-values people [(list (? + 1) 0 0)]
. x: {3 |9 `" P8 x5 H! y8 r! g
9 M) s8 ~, [$ Oset trade-record-current []* a/ m4 H( C! F" i
set credibility-receive []5 `3 m; L. \& g$ R! v; s
set local-reputation 0.5
( s! s0 ]5 v1 i* ], ]) H+ f0 T. mset neighbor-total 0
( [& h. {; H1 O6 F% ]set trade-times-total 0 j& P2 Y. ]2 ]. Z
set trade-money-total 0
) F9 I$ B" g$ Q& }+ vset customer nobody
9 q/ \$ A: B* l1 v- J1 p( Iset credibility-all n-values people [creat-credibility]- l: s( C; k! E$ N! H
set credibility n-values people [-1]
6 e& K# P; j9 `) ~. G* [! Mget-color
* F6 u* L- ^1 ?
' r/ X. G6 }8 o- v4 nend
! m% C) m. ` L5 h( x& D9 v3 M6 H( A5 Y/ \6 r3 C, a
to-report creat-credibility
. O2 A3 U6 p3 s9 zreport n-values people [0.5]5 T& \8 d3 m0 l8 z/ V8 c" h& Q0 ~* D
end
- d* v2 h: ^' @! _# O+ ^1 n5 S
: E5 i, x: v$ E: S+ S- e) wto setup-plots
! j% ~( w) |9 ]; ]7 O# e e. ^# v* [+ d' f* g
set xmax 30# ^ k. ~ P; ?, G" V6 A0 p1 _! O
" f3 P/ j8 l; l" R) mset ymax 1.06 T* n+ E# h& q& l
1 |" s0 G9 Y. l7 S
clear-all-plots1 x; m i4 Z! c3 @
6 K8 H3 j; ]: \# K
setup-plot1/ N2 }: M/ f6 [$ ]7 [+ G
; B8 L7 X; N; u6 q3 m. _6 y
setup-plot2. Z4 n* M- v) C( a0 W9 M
@$ @- f2 |8 a i, l
setup-plot3
+ C! y+ t- P# a8 y5 B8 H( Y" Gend9 p* \' H" ?" H$ b6 y
/ \% f1 J$ y# O) j;;run time procedures
6 R" m6 V, o0 z: g
5 d& e2 A* J4 b4 X5 u2 y- n9 U: Mto go1 x5 H6 t, |$ }) b( @4 G
* }" X _; k2 s9 H
ask turtles [do-business]1 ?( Z. Z! U7 E y
end0 L }. A( f( X: x
# n# z3 B, ~; [to do-business
( N; w' m" Z* q- p/ u8 ~9 q9 |# ~% ?" i- B" p: U. ]/ z6 p- v
( S2 w$ d: q2 @5 }; X2 y% e6 M
rt random 360
( b4 \ {# s; j+ I9 v- T( p
+ Y4 Z5 v/ [) Hfd 15 a- h8 D( z1 n. e: Z1 U- w
1 Q+ b0 Q, A+ U0 ^9 v
ifelse(other turtles-here != nobody)[7 t, q2 R3 ~7 C. V! B ?5 u
8 j' ^. L* b1 k6 Fset customer one-of other turtles-here3 A0 P) i3 p- c+ b
: y; ?9 B! M) T; ]; k; k
;; set [customer] of customer myself
6 t# L5 X. v% q" D/ k2 ~# y2 D$ g
& S3 a9 T8 h5 U# F. ^. ~% G8 r7 uset [trade-record-one] of self item (([who] of customer) - 1)8 [2 ?: M! x9 [0 V8 h. L7 {
[trade-record-all]of self2 l$ ~( q8 M5 `7 `
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) R: ]3 P, g6 u6 Q7 k2 e
O+ O* y4 h8 p8 M$ R6 kset [trade-record-one] of customer item (([who] of self) - 1)" g X# R( B( Z
[trade-record-all]of customer
8 y. ~$ f: f! z3 w+ B: Q/ V* P- b% b2 `: _
set [trade-record-one-len] of self length [trade-record-one] of self$ ~1 x' O8 s* f! ]
# t8 t/ ~+ N& ?. iset trade-record-current( list (timer) (random money-upper-limit))4 b2 u2 x9 \' C' Y( C0 n
1 b+ y2 o3 Z5 o6 d/ V3 X* G& W) A) ]
ask self [do-trust]
7 V8 [+ X* n" t;;先求i对j的信任度
* c8 c" @1 h2 i( i; X0 x+ T) A4 M6 v' p* u" b: P8 D+ k
if ([trust-ok] of self)
1 w _" V1 p+ s8 P, p- M9 |;;根据i对j的信任度来决定是否与j进行交易[1 }, X& K% S, A
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! b" v; m( z" E& u* q1 Y$ ], F3 M
8 Y n$ x" N5 b[
& C; k. o- C& E( ~2 B8 E" n. z/ {( J' [! C; t V7 r- C! r W
do-trade8 V8 |( [% p$ a9 C% G% ?7 q$ G; h
; q7 a; }( W% r* k& k4 v3 N! Wupdate-credibility-ijl4 M" O5 s& G" N& J& ]
5 O) f; Y }; z" E
update-credibility-list
% p1 M3 F; U; q( j% g& e! i: U4 q1 ]: s1 f6 H& B
: g& i$ s9 C% p0 m: \0 N
update-global-reputation-list
0 j7 u' }$ \! [4 i+ j2 _
5 c2 ~2 I% K/ i# w1 epoll-class" X+ x6 g8 {6 G: R, K h+ K' d
* L& j& s% e+ Y, N+ \get-color; y* [8 w6 f# \
8 x% x" b) v& E]]! A0 M# {& y% s; X" A& T* y' b6 O
& M' {2 }7 X" E8 _ b. z
;;如果所得的信任度满足条件,则进行交易( G1 f8 s, D- N `( N9 d
( v* z2 M$ y% o! t6 q; n: t[0 y! v; K* {7 \/ K& W
+ a4 B& D# @7 ~* g( _+ vrt random 360
3 s2 m2 R1 \, o
4 t! E3 E, J, D2 q2 J* e; Sfd 11 y R2 o$ q" o
9 T T+ E9 c7 k% ?1 a]& c y0 O$ L2 z7 u5 D
' o/ d3 K3 O9 ^3 n. P, ~# ~
end
1 S/ v2 J8 u9 e; Q5 |" s ~
% j! h% n; [% @% i7 Kto do-trust
4 g0 l3 D9 j- aset trust-ok False
6 ^' u0 ]3 T& K% r3 c7 Z6 U! X. I1 L9 j+ L: {
& k; U8 v( _' H2 h: Y% Dlet max-trade-times 0
* K8 |$ @8 }7 }3 ?; r- a. P( U& ?foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. H5 q9 I) `* `4 V" [
let max-trade-money 02 }5 X) u4 F6 k0 ~- i" e% m
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 [$ d5 n ?- n) Q$ w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
8 F& f, N u r- l
; l4 |2 J! f; v; g0 G
- B9 v: N" T! y2 jget-global-proportion
4 ^% X. R2 C5 K; @& K* y: hlet trust-value, Y$ a: m; z 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)
9 j% \$ U, v8 kif(trust-value > trade-trust-value)1 p, M1 ?+ N' n/ w. Y' ]
[set trust-ok true]9 ~. H; \3 n# s, b0 S
end+ {& [4 R( k4 J' ?# I8 U
5 ~+ d- v2 Y# {+ Q0 ]
to get-global-proportion
9 R6 ?$ q2 U& ?! C' Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ N9 C' @( i! i. G# [1 K. s f( r! Q7 g[set global-proportion 0]; H1 |5 \8 {" c
[let i 0
/ u* t% ]: y; ?$ [let sum-money 0
8 n. U' w* a% Z$ zwhile[ i < people]' F% q- Y5 G5 I" R# F8 J. Z, M
[
% h+ k, I$ U4 P* l* o2 z0 D" iif( length (item i# Z. s) g* w0 m j
[trade-record-all] of customer) > 3 )0 z9 ]4 p$ N0 ?) s: A
[# w* ~! A6 B' K1 T5 k( l* V
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 [5 r2 a" a, l- M+ o; e& x' w
]$ ^" {: v8 \+ h3 M+ A: z7 l* U$ C- o
], X! `+ z0 S0 o( e
let j 0
* j+ A; q+ c& y. D5 |2 r0 T( _let note 0' y7 N0 R* d# }+ Q7 w/ \
while[ j < people]3 I1 H& P$ p# M& s& m, C
[2 A; w( b z) G9 J9 x
if( length (item i- \* n4 G( H# a7 Q1 t
[trade-record-all] of customer) > 3 )! y! p! Q& Y1 J6 J7 T8 E
[
- [* R) b8 B9 k' y. N+ i3 D0 Jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! Z# z& @: E6 i& J5 O3 i- Q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& E% Z) X; P( s; D C7 L' Z' y! q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- B. m3 i7 S3 g% Y0 t; ]4 j, q
]
7 R0 A! p1 [! g# C5 H]
" c. B* q( c9 b# |( Zset global-proportion note, G: W' l/ P/ W+ R8 w+ W. m0 _ ?
]
* L5 E. n; H* d% Lend
N9 S J; a6 a7 c" ^ Y: r( |. f' d9 E( b7 k4 t4 m
to do-trade- w7 M B( N$ r+ I3 y* ]
;;这个过程实际上是给双方作出评价的过程. K+ P5 v) r) e# l' f& c" m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, r! `% Y& W4 b7 e" C5 `2 lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# N3 A1 `9 {/ h' j" K3 jset trade-record-current lput(timer) trade-record-current
5 `+ G0 m! E, o% O" W7 _;;评价时间
0 g) O4 ? R/ \5 Q! c7 Hask myself [5 ^% N2 }- V. [ X
update-local-reputation
3 {1 u1 k; F. z: m6 Qset trade-record-current lput([local-reputation] of myself) trade-record-current3 K- C& e5 [! w0 {5 u4 ]
]
/ L, l7 E! W1 _- v$ G& cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 k, u* B3 X9 z6 {$ S" p4 @;;将此次交易的记录加入到trade-record-one中
" k& O: A/ N4 `1 t& Jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 B2 g4 M, k& o; P% x2 W8 q# J
let note (item 2 trade-record-current )
5 o1 l* U2 ~2 E9 Pset trade-record-current
0 d# |( d5 c R) R% R5 i* S(replace-item 2 trade-record-current (item 3 trade-record-current))& \" f. T$ J# U' d/ [: k/ w
set trade-record-current
$ ~7 ]9 H4 W# U W* @(replace-item 3 trade-record-current note)" a' v" f/ V3 d( p* n
- i+ f( z9 C* u2 \9 [& ~0 ?5 S. }6 d+ X! k5 p
ask customer [ ^) G1 ]4 L i# j
update-local-reputation
0 W1 }; m f5 ?set trade-record-current
7 h+ P, N, H; D$ s(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 o" H# L3 I! P& i
]
# }8 Y& @; O7 D
8 A' E5 D) u( }+ @7 d3 {
7 P' g9 j2 \; j! A- Z! }' oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' l( j4 I6 w- o ^
& e" a; c- i. a% `$ X Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 h) O# S) q) P; h& d3 L1 f0 y
;;将此次交易的记录加入到customer的trade-record-all中
, x) R$ b9 m5 I/ i! d) Rend& E3 B$ _. U* D' P
: }* A& e- W" `8 k4 K$ @
to update-local-reputation. V1 r# I! O g, L. W2 ]2 J
set [trade-record-one-len] of myself length [trade-record-one] of myself& s: O! V. M3 n; {+ ^2 d
; k2 D: D* G- l
2 C n( e2 c# {! w;;if [trade-record-one-len] of myself > 3 e' o1 o- m3 M
update-neighbor-total2 @8 [/ W" z/ K# c+ |
;;更新邻居节点的数目,在此进行8 K8 Q# _& v) q: x3 j% r
let i 3
. q. r+ `4 U5 C1 T$ H# G! s& ~let sum-time 0
. I. h- \; @8 l% r; y- o% twhile[i < [trade-record-one-len] of myself]3 v% E/ b' W% i
[
5 a/ D- T! D6 pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) ]) u- h; a2 m9 B: N1 b! J
set i( ?8 [, I: y* ]
( i + 1)$ A% K& O6 U h: F4 \
]6 A- ^" K- ~) Y
let j 3, m5 `& s |/ a8 @
let sum-money 0
; F7 ^! \" f* n' @' S) ^while[j < [trade-record-one-len] of myself]2 _$ U c, S9 p
[
' ~" ^, y. ]4 j4 q. |1 rset 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 h; p( k4 r3 I& D
set j
% @- a% F5 F# d4 D( X4 _( j + 1)
6 y& y& {# @$ n: D], _ v( M: I3 Z( p: x# B; B
let k 36 ^9 c3 n9 z5 g: z' [
let power 07 y7 G) I2 ^$ Z1 Q
let local 0. v; B' h+ S, @$ j& Y
while [k <[trade-record-one-len] of myself]5 [/ k, X" @" o6 @: r3 z# Z4 D
[
* l$ p' e, b1 k/ A, z& E; q* q) @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) 1 ?- E c- @: U
set k (k + 1)2 t+ m& S, P% e1 w$ c' [
]8 r4 E2 j+ c0 `4 |
set [local-reputation] of myself (local)
& g/ G/ g$ M5 |end1 H1 ~1 O% @; y) p, C
& T: f3 ~( t) R: C" U5 j3 Dto update-neighbor-total- C2 x6 L [+ i# P: @" T1 y$ S& ]- p( i
: U# O8 X4 \, R$ ?) E& C: Y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 d1 C6 q% v: x% D: ^, P4 B6 z6 v+ b' _8 a- z- \- Q p3 h
/ ^! b& ]) f$ [! x5 ?
end
, f; K N% x; s! n2 @" ^& i
% N) }9 H/ {& m( j Cto update-credibility-ijl
2 f8 P& ^* m! ? O
+ D+ ~8 P5 j7 J) {. {* \;;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。3 W& s2 [, F' l U m8 c
let l 02 D) @; H; H! w' H8 b
while[ l < people ]
* [* P* U, t, L$ K, P. d, 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9 h2 }) t/ `4 ~7 X) f, a3 q
[) K, U5 ]; a5 | N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 {# x# o7 R W8 G2 I7 Sif (trade-record-one-j-l-len > 3)+ K& M! f% A. Q& 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
/ |2 J* V. T% ~let i 3) `2 u# C/ a7 e# l
let sum-time 0' B; d* f- D @7 ^2 Z
while[i < trade-record-one-len]
) ^ q1 X1 e% u. W& S: O: p o[
. Z% V4 B$ r% N" V) e/ e; {set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( q9 U+ B5 T0 j. Fset i& f: r( n4 ]+ ~; X* [2 r+ \+ L
( i + 1)& c( q7 ?, Z( i- g
]
8 R) s7 F% H2 M9 r1 ~+ C n8 Jlet credibility-i-j-l 05 J* o G( K! W; T5 E0 \! k% k( A
;;i评价(j对jl的评价)
9 g! h! I! P0 o( U0 D" Vlet j 32 m5 j3 s2 ]' q+ E8 {9 V6 F8 G
let k 4
& L9 `/ w8 q, V: x: x: Ewhile[j < trade-record-one-len]
! ]$ y8 I6 S( [: I/ ]# z* v[3 i, g& m, m& r: Z/ c4 P: _
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/ j2 h' P3 q: f2 V
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)
7 u! `8 @. |% i# l" ?set j, l" G3 L( O: b2 |& T* S% `% [# o
( j + 1)
: w+ o* f- [' s% i0 E+ O]- }: z% V) A* i! m8 n
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 ]4 u+ s, p% Q
7 }# z9 a5 f% w8 w, ?# U8 }
, q# V- N* b4 B, \8 l t8 Q$ N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 G- J* G$ |0 w;;及时更新i对l的评价质量的评价! e- D* A- R' `/ e% c9 [
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( O# s3 _5 q9 F! ]
set l (l + 1)# |+ F3 N/ ^+ x2 p
]
1 Z& i5 v, \& p; s, g5 }end
2 c. }! s: y# v6 h( E$ D' B% {2 d$ C0 K5 O. `
to update-credibility-list
, S3 p: u) L. }! V1 d$ L! llet i 0
- I* X6 a7 \5 d4 G4 Hwhile[i < people]" S. {- F) w* H4 e4 \9 e
[( y- C+ t4 A( d' \
let j 05 |4 B: @4 s, D
let note 05 G x0 i- H' S1 ?
let k 0
- S7 a2 \$ U8 Y$ {9 f: K* Q6 B;;计作出过评价的邻居节点的数目3 T+ @: z4 Q- \( g+ h4 V1 V0 d
while[j < people]
3 p" P; q7 `. P& Y0 s# \[+ _% l+ P% T# d
if (item j( [credibility] of turtle (i + 1)) != -1)- J) G$ J; \1 r _* ~/ |* r
;;判断是否给本turtle的评价质量做出过评价的节点
0 |- }* ^5 ?$ a[set note (note + item j ([credibility]of turtle (i + 1))) W! d- u c& t- b) S1 I4 c" G
;;*(exp (-(people - 2)))/(people - 2))]
+ B* Y. y1 K$ N5 ~set k (k + 1)# j1 P! G3 \2 a$ t
]
5 r8 y. v, s* h. xset j (j + 1)7 `2 r/ B2 U; s' K0 U
]
& R6 }9 U, G b% Qset note (note *(exp (- (1 / k)))/ k)4 ]7 q" P1 F3 V0 c/ O7 `( L
set credibility-list (replace-item i credibility-list note)
6 D3 H9 ~& n' u) A7 k9 Tset i (i + 1)( A9 u3 p3 ~ \! u
]0 r: C1 U5 b# v) S$ } g
end
; S* k- {+ H( N! g) }) l8 x/ H" I: u: Z7 _; `+ `- G/ R: D/ X8 h
to update-global-reputation-list
$ @6 X# ?1 \# W" @$ f# j, Nlet j 0' ~4 ~" R7 q2 h5 k
while[j < people]
- R0 W! P( l* Z/ k2 A: G[$ m) @4 F+ O0 [! U/ B5 x7 ^2 q
let new 05 M% i: T$ d# N0 g, T
;;暂存新的一个全局声誉
, v% O- Q8 I, \ hlet i 0
, k8 U. p6 [: Jlet sum-money 0
3 z+ q: t o5 _( F+ n6 D; ulet credibility-money 0
; M4 X5 \ I* I4 l3 xwhile [i < people]% y' ?: s" q8 r8 ?4 g) [" C
[
6 L$ h9 Q9 T3 U: I- N/ M9 lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ w( z$ u8 ?5 n& c) jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' _% ~8 z" X9 }5 @+ I y2 l3 Kset i (i + 1)- x$ k/ c; A f$ Y& B1 }
]
* C" w: k+ v9 D- f6 elet k 0
2 l3 |5 i7 m8 S- g! v: \/ b6 e, h jlet new1 0
) k" b1 ^5 U5 `while [k < people]
- e( R% t9 v( T; p[
# n |# @% Q1 _) 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)2 c- K6 _( k! c# e
set k (k + 1)2 J& T7 ?" L9 B4 G1 X. g% A
]
: C* q1 o8 }# [2 [$ k2 tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 T$ H) x) ] I5 \. E( y
set global-reputation-list (replace-item j global-reputation-list new)3 I: C* `9 C' g% Z
set j (j + 1)# R0 y' X; a/ X( V* B* E' h
]
# m- Y3 F! E; o( T7 g% [ [+ H' tend
+ w `5 _& [+ n, g9 ^& S: D
) G4 V$ ~. d% `0 ^% U
$ n% q5 b' m) S+ M" {3 e2 z; r! T/ B: @: c) m
to get-color
5 ]. D9 n2 J2 d, x ]1 }$ d8 D# {/ V% n$ P% O* j( f+ ], D
set color blue7 R6 ?/ H4 c( `+ }1 m# z8 S' l
end) |0 e# i3 @- M$ G, y0 j
! l+ c( n4 a- q6 @( P
to poll-class
3 C& B& Q7 G0 d1 qend' O8 B* D1 [ g9 F( K; j$ y+ H
; T& V h- i. j- {6 a( T- Zto setup-plot1
+ I; A# |+ r. ?, S7 m
6 W) c. z, T% Q6 tset-current-plot "Trends-of-Local-reputation"
% l1 F2 h. A/ E+ V [# |6 h$ G2 @; a6 L4 y- }" s
set-plot-x-range 0 xmax
2 u% _" \+ @5 w/ O# ?
% @# |$ Q6 a! Q. cset-plot-y-range 0.0 ymax
. f( [, h& T0 Send' b5 H. i* w# F7 R+ |# H4 R
9 `% P! |3 M8 [
to setup-plot2( o8 K7 ]7 o$ a+ t A
, P! I6 ? Q: v8 R
set-current-plot "Trends-of-global-reputation"
0 Y& D3 [0 x$ s9 W1 z9 I0 s! u$ b% @5 e& [& k* d7 b* q
set-plot-x-range 0 xmax
* p! \& A7 A, ~$ o& b5 R& J5 o; d: z" V% F
set-plot-y-range 0.0 ymax g) Y1 `% E U3 A I6 ^
end3 `+ M8 Y) S* r/ w
' C: P. o! S* I' F, K
to setup-plot3 z+ K) q( E. \* m5 N a$ p3 }) b; X
3 |8 v9 [7 d$ r
set-current-plot "Trends-of-credibility"
* ]3 I1 x8 _8 k0 Q# o4 X
) H2 a/ q- @" |8 zset-plot-x-range 0 xmax2 Y, i3 Z% k# D, p
; P8 b# O: ^4 J+ B5 w: S6 ?
set-plot-y-range 0.0 ymax
9 D6 A6 {- b( j8 j+ C. ^end
# ^9 w; E' C$ A6 p4 w/ Z$ v {* q& v
to do-plots0 Y2 _8 l" {# M: O9 X5 h% u
set-current-plot "Trends-of-Local-reputation"
( O y% J* T( g3 y$ D5 t) v) Iset-current-plot-pen "Honest service"6 n" s" B7 `! n/ A% x
end
9 m; N2 F2 a5 i# y- S {3 l# N
0 n5 W" ?& r( E/ [4 v3 u/ R[ 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
|