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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
2 o& c# u3 \$ {) O1 M% X/ Iglobals[
& ~- Q! l9 {' }& T+ r7 T3 fxmax
2 r% E" q7 g! O& [" p& O( O, uymax# w4 H: c9 v2 F, x% B' J' y* u
global-reputation-list8 a, ?* ]: u/ I1 V
" v! S1 Y. ^8 s$ H r" q9 [
;;每一个turtle的全局声誉都存在此LIST中% h- C: O6 m' k8 \( Y
credibility-list% X& z9 s) Z7 h6 b' L, p
;;每一个turtle的评价可信度$ M6 R5 o3 ^. n7 y6 Y6 o2 ]" g
honest-service
3 u3 J. P3 L F& K2 m1 nunhonest-service
, {7 ?9 ]6 R$ G, W$ q2 v& Ioscillation
7 W. s% O N" `0 C" J! n2 h9 Qrand-dynamic
. ]8 w' o( E8 ?$ f( p8 f] M, E. Q E a* s
4 f& F/ s: O8 d1 i
turtles-own[
5 O# A5 l- T4 A/ x. \! p! V( xtrade-record-all
3 O [$ L/ ?) J! n;;a list of lists,由trade-record-one组成. {* L' Q, q) T# K7 E+ d" v
trade-record-one
( d$ K( q5 t) T' ~;;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: J4 j/ a% e$ e7 _( Y/ a7 T4 N
5 Y& ~/ d# M* z: u% \
;;[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 q% s- _4 H( ], \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]$ w; n: k/ {2 v, k
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 l' j( G5 J3 U% y. U
neighbor-total$ u' E: Q7 V) [
;;记录该turtle的邻居节点的数目1 K4 ]2 n( h( @/ c4 \" j+ |& P
trade-time" I/ P5 T2 N5 y- I8 m0 s$ u
;;当前发生交易的turtle的交易时间! O. Y6 G" R" l5 B
appraise-give
( A. ]; r$ L: _. v N;;当前发生交易时给出的评价
4 D% }+ {: z" H6 l' r. q# C+ U' v& |appraise-receive. \" `" L! a9 Z3 I
;;当前发生交易时收到的评价
/ U/ H7 p2 x5 j7 V2 A3 cappraise-time- \ K: {# n2 O* h0 I3 B% ]3 t
;;当前发生交易时的评价时间( ?5 U, Q( J5 @: J, _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; L2 a% ]. b) ]4 \
trade-times-total8 e9 E1 @$ [9 |+ ~
;;与当前turtle的交易总次数3 m- C- C3 x0 v' T; @1 [4 }1 V, n
trade-money-total
+ S# m4 x% x# @9 m% l- {;;与当前turtle的交易总金额
1 @! \" C9 S" a4 J% @8 _) d- i/ clocal-reputation) w1 L& g3 Y ~
global-reputation
: M% k3 U: a0 f3 H( v: a7 Hcredibility1 i+ b% L' s) S, b% j. g
;;评价可信度,每次交易后都需要更新
7 U+ ?* s+ {3 m) A+ qcredibility-all6 l! k5 l: c. b( @! H
;;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 X; }+ ?% ?" L0 K1 \' a U9 P
$ Q9 [" w% l% r2 h1 [
;;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+ E3 M, B B5 J# L: I) h6 a
credibility-one6 h- X$ K6 T6 F9 p# H
;;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" U, Y9 S$ {, \
global-proportion4 u# @) N* d" k. I/ y B
customer
0 y$ ~! |1 m9 X& U! Vcustomer-no
5 A+ t- G! N% btrust-ok
. S& g* `8 A2 ^% H5 g5 c6 |& L2 e$ Ltrade-record-one-len;;trade-record-one的长度 c# f$ Z a4 |3 N" Q% i
]
4 P* ^/ |$ T- @( H* k( I+ Y. ?; |6 i$ x& T, [
;;setup procedure# [, W7 Y; J8 n) ~1 x% z2 ^. i' @
/ X: P, F% v* M" M8 b& x" G( ^to setup
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6 n5 n! s+ e) @$ j @ca
K6 R. p+ g. X2 f1 D9 u) i1 N: |3 Y, |( E- V2 M s
initialize-settings1 U! D% e# D+ n3 D% Z. S( U7 k
& U7 X; s5 Z* k+ x6 L
crt people [setup-turtles]
4 T# o: l0 _. G0 A; T# S
9 t( C% H: O: l) h' [+ ]+ u areset-timer
3 K6 t n% }! I2 O7 Z- [, E/ ]6 n: f8 A h
poll-class2 d F7 C* F' k v" y
8 t I- K0 D9 f- G% gsetup-plots
8 t o: I- \1 T ?; k( P, R5 X( {4 P) k3 Y% O% p
do-plots6 M t: C1 @$ z7 _) F
end& b7 ] Q4 U T! N: W
. S5 H5 H3 U" [% c% f' o8 b
to initialize-settings
* r$ a/ u2 h- | ?" E0 ?# \2 ]) x+ e4 X& s
set global-reputation-list []
1 k+ b0 Y5 ?0 ?. ~5 [5 S
8 Y" E; y8 @% D9 Tset credibility-list n-values people [0.5]2 O ^: c" v5 i7 W1 v L
* s: P8 W# Z# k$ h9 U& J
set honest-service 0
8 C) S1 d) g# E0 v. O$ ^" Q( O- @. d+ o
set unhonest-service 04 ^/ E8 b/ z3 f7 d5 @+ Z* m
4 I6 G; b/ h4 [* L* N0 L) ^( Fset oscillation 0- I! D/ X! T0 |6 M v
q' m; o8 v d/ ]0 F7 b s, Wset rand-dynamic 0% g- _ j! t0 y0 [
end! {, l( ~. w9 ]+ q" g B7 b( l, z2 j$ R
" X$ @1 l7 ^0 l. m6 j% X
to setup-turtles
, c! t1 z, M- A/ S% H1 ?- pset shape "person"
% Y/ V: d' H/ k2 ~setxy random-xcor random-ycor
$ \7 ` K0 x/ n' R2 }set trade-record-one []
% U' s7 u7 W5 v9 e( s" N" t" E. N9 x6 b. p$ F
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 J' e# s( P- s' [
5 u) c0 l! z* B$ }+ W6 I
set trade-record-current []- z* y3 n( `8 P) L5 H
set credibility-receive []
+ S" H8 M3 {, _set local-reputation 0.55 |0 a: f$ p2 {
set neighbor-total 0! |" D( h/ n4 {' s8 c; i
set trade-times-total 0! g! _! P& V$ B, x8 m! W
set trade-money-total 0
9 ]! ?( q/ @& H: R( h: y6 M/ H. lset customer nobody
0 t' C! Q# `. t" p Oset credibility-all n-values people [creat-credibility]
8 L! B; L, V S# f4 M9 g7 Nset credibility n-values people [-1]1 C4 Z$ M! q' e- t+ a' i1 D
get-color
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end
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to-report creat-credibility
! [* q: T# I& K& [2 b3 Ireport n-values people [0.5]* h5 o M' _. A6 C, L; j
end0 z* o+ a; m$ q5 P$ ~- w
) J, F G* v) n) F) s/ z6 q
to setup-plots: e/ x. Y+ W/ J: {3 v% h
/ X1 Q' _( Q- P- G* j5 n! K6 _1 s
set xmax 307 n$ C9 u' a0 r F( i8 ^
7 W# f( O/ @+ M6 ~# y/ w3 gset ymax 1.0& J# f1 ^- F+ u5 h: }5 K
" l. K& b g+ @: J w: Z! Yclear-all-plots+ W' j( F. J: q2 x) X
- l7 z" p. I H1 V) c* ]
setup-plot1
! n* B1 f6 d! W9 m
' q' r2 `9 R) S! C$ fsetup-plot22 Y+ V6 I# H' F |/ i
7 ^* @0 U: ?# W" \
setup-plot3
" y' K! r; f) u( d) R( Pend5 Z. S5 {* y6 \9 k0 q. O3 y
* N' F; g) N* ^) E' \
;;run time procedures
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" \# U8 A8 i: z O7 c* Eto go* r5 s( B; I# O
1 O, X- N* v3 E: b8 [ask turtles [do-business]" y% m( g( ~. a( o
end4 g1 \, z; W, `+ `7 m8 @
' @+ p( w m2 t6 q, Gto do-business
0 i, _: r! [9 }& D) ~3 w# ?. f- ^* i4 N; e2 V5 B/ I) E% N, F. H5 L
& T" S8 Z d% b% H
rt random 360$ X' d4 [4 z' L7 A6 ~
: Z+ v2 g/ W8 }" u6 C- c# Vfd 1
# a- m5 Z' ]* m' T: ~$ F2 j( ?2 K7 i0 h& Y. v
ifelse(other turtles-here != nobody)[! b" Y! w, ?2 j) Y/ r6 Z
0 q; ~, r% ?9 v9 Y; R! eset customer one-of other turtles-here% n. o# D2 ~7 R0 b
4 Y+ v! e3 G6 A. H$ t7 L;; set [customer] of customer myself
0 T- c. w' j4 o) _, j5 q b2 J, N1 p; ^! F3 G/ G8 S" b% t- p' `
set [trade-record-one] of self item (([who] of customer) - 1)# V1 k5 f" J4 d% {! L) B5 F6 q
[trade-record-all]of self
4 s* u' S3 Q" H" M# C;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 b F$ O) m( b$ m L9 E# h
) z2 q. o& ~( }2 r( G! t8 Nset [trade-record-one] of customer item (([who] of self) - 1); a. T/ I$ k9 ]- l+ g& z4 C' S
[trade-record-all]of customer* w/ @9 j( o8 p3 g$ @9 f; w. C2 p
5 B+ Q; S9 u O' b( G+ Fset [trade-record-one-len] of self length [trade-record-one] of self
1 x$ K$ F( E! k5 n$ }6 ^
% Z* i/ o- n3 U3 h" n1 Y2 uset trade-record-current( list (timer) (random money-upper-limit))
' u2 l- }, r+ D, S/ a5 g$ W, V. f2 `. r, O6 G) p
ask self [do-trust]8 D5 X. H; g% c" ~# z5 p I e5 ^1 H
;;先求i对j的信任度
! m5 Q2 u7 v! e0 W5 M% ?
9 j' K4 n$ v3 S- mif ([trust-ok] of self)9 W) l, ]0 J. h6 E# x$ m: X, J
;;根据i对j的信任度来决定是否与j进行交易[, e$ `& J9 \+ n, U9 ]
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
& S. x" y8 J6 B! `
! o$ S; \% ` _0 K- q; Ado-trade( W9 F. _. F4 I
$ W& ]9 Q( ]+ @/ T' P; e( I' a
update-credibility-ijl
1 Q% i/ A7 ~9 @# |1 G! {; l: J4 G, P9 T! P# H5 X7 Y0 T: e
update-credibility-list' D% v" l( @) O# z. M/ z
5 P( b) l/ k k0 e
2 }0 b7 \2 i* v W1 ~9 J Qupdate-global-reputation-list1 S* ~9 U3 v, q+ S
5 y* O' Z0 q. r0 [- tpoll-class' @7 ~6 l# ?4 D, [$ w0 }
' i4 V- _+ g& X# L9 p$ H
get-color
4 J1 q6 c) o/ j" i+ v" m# l2 f
5 O7 v F9 V$ E& []]) h: h9 a' C* ~
5 s& K6 e, u( `- [& P;;如果所得的信任度满足条件,则进行交易1 g% _! R+ f- e+ r& p: Y* d
. @, d% ?/ t3 X b! P$ J[
1 m7 f! f; U, R) D3 _
+ n" S, t" y+ C9 d9 J% [+ ]rt random 360: k/ T% X6 @1 \4 h
4 Z4 A& ^4 T' i8 y8 K7 Z, U
fd 17 A* {8 E+ L2 H
9 \2 | x/ f9 v8 q. Q+ K' ?. ^]
7 U, z0 z N+ `5 A
" O q' X" O1 \' S Z# _; Kend
# B+ n3 C4 ^: R8 o. c( H
' w3 {: o. ]% n2 b' z! ^to do-trust ' g( `7 K, V* Z! ^: S. c; c* N
set trust-ok False' `$ C) E. K4 c! B* ~, X8 |6 Z7 h+ ?
& h- @. I1 `9 @: B& |0 n
7 E9 o, ]# G+ r: n. E/ F' ?
let max-trade-times 05 G' ^4 ~) G; o2 O: [ ^
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 v) c7 t& v- c" L8 Y3 S! s9 z) r
let max-trade-money 0
" C) M. m( T/ X/ R" a: c; Iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! I9 V4 M& M: H$ E/ Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) F2 n9 w. ~$ F! y
. R, D4 d* A+ y7 r: H$ n' T! J
/ q; {! S* q4 r3 pget-global-proportion2 A- H# m+ X1 b' G- T- T1 Y$ n
let trust-value
+ W3 {6 U) D/ T" o2 o; Z# e) W& Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)6 `4 K( j" `& u0 p. W6 v0 k8 n
if(trust-value > trade-trust-value)+ t; `8 z3 m5 n8 r, t% s1 |
[set trust-ok true]
d2 ^ E, E5 [- `end* a3 z+ U9 W) k. R8 L
; n9 q8 C6 f( U B3 x6 ^
to get-global-proportion9 E5 o+ N: q& Y% A. X
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. P# t, b4 f# i/ k" b0 X[set global-proportion 0]8 e7 T# C n, g9 P
[let i 0. _+ D; d& C- J) [3 z
let sum-money 0
2 K4 r* Y% @! F3 `% D0 Fwhile[ i < people]; ?2 t; O( F2 ]- z5 U9 l% @: A" I
[
( E: L) R k% iif( length (item i7 a9 X, ?. f" T: Q# o8 L
[trade-record-all] of customer) > 3 )! k/ c: e: ]! t/ |; I/ L1 x
[6 i7 \+ F( L) l; n! u
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 |& c$ `5 ^4 H1 v) Z- o7 k. P]9 n) g, M6 d B% G' G8 q) R; V6 U. H/ v
]( a. d& j; K" e0 V c3 y- V# J
let j 0
, ~& \9 ]: ?. b& Q1 A' flet note 00 S2 ^0 G- y+ N/ K8 ]- p
while[ j < people]- R5 @9 L' H& l3 X4 M
[2 I3 b9 [* b8 O/ U s2 }4 K4 m
if( length (item i
0 w t! o3 p2 A[trade-record-all] of customer) > 3 )
@' c8 _& k/ R: ~! Y9 A! e[) k& x: L/ c! K& |3 |
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ }/ k* `+ f) w$ i" Y2 Y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 j8 s. p! {! B: O4 k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. ~8 Q8 A3 S) \. x. U" I]% ^4 q& H6 P w: ]7 G7 L2 S
]: o4 l. N8 [0 T: p7 M
set global-proportion note9 D2 _, j! @! C9 w* i, x
]4 I+ k- _ d1 n- h
end
# e5 a$ C6 h0 l( j- k* B! p
- x. J& d# n+ r+ w5 K/ O9 B% Sto do-trade
( g3 v6 f+ d V8 F! k;;这个过程实际上是给双方作出评价的过程) P2 C+ f V' A) s( a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; a" H" B" \% s- g2 D4 `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 H8 e8 a* V. P2 @" a
set trade-record-current lput(timer) trade-record-current. ^( ?& w$ m2 a2 s
;;评价时间
1 [% S" d7 D1 ~. m( m1 s0 lask myself [
3 ]7 w U& W! A. C$ h: qupdate-local-reputation
, s% D4 q/ R! Dset trade-record-current lput([local-reputation] of myself) trade-record-current
/ B, G* m* M) \ A# C/ ~]0 }* k0 q6 \" |7 F4 ~: _3 Y0 {
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 m, {1 B( R" H: b. d* w, V M$ t;;将此次交易的记录加入到trade-record-one中
% f5 \/ b4 K. Y) g- D/ y, Zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
j) v+ @+ W0 a0 ]" j/ Dlet note (item 2 trade-record-current )0 O2 [6 _" y8 W: v- D7 q- T) y
set trade-record-current) X0 q% }! I7 }2 r
(replace-item 2 trade-record-current (item 3 trade-record-current)): b3 Y/ z1 D) T) c: T2 I
set trade-record-current2 O' ?" ~4 C) D; _# t/ p3 w2 c
(replace-item 3 trade-record-current note)
4 r3 E) f% u/ B+ w- I7 ?7 j
; Q4 C6 v* y' j2 l# l" O8 W; g# E `% v& U' r
ask customer [; ~7 e0 r5 M: t4 m3 Q
update-local-reputation- |2 `6 v( P8 g" o4 e9 x
set trade-record-current
2 f+ ]+ `6 b9 V3 i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& H( d$ b2 m3 ^9 T. U]
7 W* }9 L! f6 f0 p; M+ i
+ o/ H9 g- j7 W" j5 p7 b
5 y4 Y2 o4 p8 l% s; U6 k( i; Nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; o! S1 `( \6 ?9 s! V! g4 }. }
0 {( c8 J- n. K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 A$ |. C% l; g# v! K* [% _/ x;;将此次交易的记录加入到customer的trade-record-all中5 o8 ? a+ i. @, r
end
0 N G% N- Q: H; m) ] O8 r7 |) j+ D2 }7 ?# ~/ K1 r0 Y1 }
to update-local-reputation
: e u" d2 u6 I& Q2 e/ Q! Iset [trade-record-one-len] of myself length [trade-record-one] of myself7 v& [4 n; a4 L
+ E7 I7 D! W0 d( M9 Y
6 E) C* c9 C3 h8 _
;;if [trade-record-one-len] of myself > 3
X; y! \( n5 @& L0 [update-neighbor-total. E9 R' J0 M) [4 |1 x# ~
;;更新邻居节点的数目,在此进行, Y9 [+ n5 I d7 Z. U& K
let i 3
1 j! t0 |" J& Q" ]8 ]% S' T3 @let sum-time 0* x& }( K& w: [ ~* A
while[i < [trade-record-one-len] of myself]
0 s; |' Y9 t A4 u a/ K! g[! X- i8 [7 q/ g% ]# [. p
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 U) h# Y+ Y" f4 a" i- y3 P
set i
1 j! g$ y" l. J, P; H) f( i + 1)" ]0 `2 t, p: {1 B9 U5 z
]
( R* h. f" m& N \1 S* F. H/ G' Ilet j 3! ?. y1 M* N. U1 m4 c, o# E2 W
let sum-money 0, `! E5 k6 }& \8 A3 j
while[j < [trade-record-one-len] of myself]! h$ M$ p$ g3 I" g# _
[7 `0 G3 F0 E: q8 z; o
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)
! j- R: G: P" S8 P. q1 Tset j
9 z0 x& z: K1 [( j + 1)
; c! F- A1 y$ f% K]+ i/ d7 `1 \# D3 Y3 N2 X- S: C2 C8 y
let k 3; Z1 S! \6 A- A8 z7 B) c
let power 0
7 ^( v% e8 l, elet local 0
0 u0 A+ A/ M5 }# x5 |- cwhile [k <[trade-record-one-len] of myself]
& r4 A( N( }4 K[; E( @' z# |# A# ]' e R+ e# i( T( 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)
9 F4 W3 w4 ?. K# X4 z# jset k (k + 1)
2 @. T& d8 {6 L% m0 f9 H/ \]% k# |& @% P& {- Y
set [local-reputation] of myself (local)3 C6 x3 z% ]; F4 ^# ]5 A$ ~' n
end
4 M/ e' I; r: x& ?+ F" C& e" T% K# {' s j
to update-neighbor-total& T6 z; Z6 [( I/ u
; r9 L& W" Z: e& Xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" H& g: q. O, o5 p) f# ~8 ]
7 L3 m7 L7 | |3 Q" H, X5 A) k9 a7 ` A; W/ l
end
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to update-credibility-ijl . _2 F& ^$ H1 R, f6 c
' y x9 k2 a& e5 L# D8 k9 V;;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。" Y6 g9 J0 @! u0 J1 N# o6 o3 c& k
let l 0
- G6 w. n& `" T" J4 ]( Uwhile[ l < people ]6 |; V4 k" `' q6 X( l
;;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
: M9 [. t# k( s/ d1 M& w }' t9 k[5 \9 F( ]5 C1 \, C1 R5 C
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 b' l. `1 P% o& q' d
if (trade-record-one-j-l-len > 3)- X% ]; P1 i# d: |+ _! T& f/ o
[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
4 j! } h* ?: Y2 {4 C1 n" Wlet i 3) q& j- t/ }: R$ K7 Y; \, V
let sum-time 0( v/ N- [/ i. H/ K( f
while[i < trade-record-one-len]8 s0 l+ B$ k; F+ C/ f
[6 t8 J# j; P# B" g% E+ p% E
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" f6 t( p4 ]: Q0 {4 t o& v0 Wset i @5 g! ?8 m+ ^, |+ ^, q0 W
( i + 1)
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let credibility-i-j-l 0
) Y" D; T: Y* n+ t% A;;i评价(j对jl的评价)" t4 s$ D6 t$ |1 Q
let j 3: ?1 v, d$ K7 a) o& }9 l
let k 4
5 f p( I& A+ K3 n. a+ Lwhile[j < trade-record-one-len]
' c% G$ B' b9 @% x[- D( r- c! ]2 N7 E- a' ?
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
7 }. C, h! U+ m1 dset 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)
! x X2 s2 x4 E' ^! hset j
9 \; e# i; }; \( b6 J( j + 1)- d+ A+ Q! h$ _& c
]0 A4 B' b& S3 [. o$ G
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 ))
% L+ h+ p: u" N \: l
1 L* c# f+ t! {$ }* W& p6 l% c9 ?4 X0 Q: e. N9 J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 u$ N/ [( g7 d1 e- D- P% L# A;;及时更新i对l的评价质量的评价( j- v( n) V8 H j6 t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# g' x8 [" ~$ l# d! i0 xset l (l + 1)3 s) V+ E- C1 ]% F" f4 j
]5 b- ~3 L5 A% j1 ]5 y& l
end# V% |0 a- w/ o+ J" l8 L" _8 l
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to update-credibility-list( k; U7 R0 @4 U8 n/ R
let i 0
' j8 ~: h. o* E% m; gwhile[i < people]
5 `8 k# e$ [/ `[6 }8 H: @; x6 J4 Z& `
let j 00 n3 j7 E3 X9 }
let note 0
3 F$ E5 g" X5 ?9 V) Y6 d% h' Tlet k 0
/ W3 c+ {" J( I* T5 N;;计作出过评价的邻居节点的数目8 b+ e' g- m+ i: \5 H2 s
while[j < people]% E6 s ~& w8 o! \3 s. {+ C
[
0 T1 P/ N- j( _1 v8 B& U: q! oif (item j( [credibility] of turtle (i + 1)) != -1)$ P* Y$ M h, t
;;判断是否给本turtle的评价质量做出过评价的节点
! s( a. c0 M8 Q0 I$ U[set note (note + item j ([credibility]of turtle (i + 1)))( c# Y% l$ d" |- l# j3 G
;;*(exp (-(people - 2)))/(people - 2))]
; m( w2 j4 `- c- t7 o; J xset k (k + 1)/ G% E3 b9 s: K
]
% |, u3 r, a+ w$ Y/ Jset j (j + 1)' e9 F" a1 c! Z i" L
]0 V6 F- o; j6 V
set note (note *(exp (- (1 / k)))/ k)& ^; O. x4 ?* g+ q6 Z1 m
set credibility-list (replace-item i credibility-list note)$ o' r! ]/ m$ @' A/ y
set i (i + 1)
2 T# f& S( i' o8 J+ q! v% e]9 d8 E8 q2 s" I; v
end
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to update-global-reputation-list. t; g6 U# v( }* C) ~; j- x
let j 0
0 r, y. Q+ x% ?; M& l/ Z. u( ?! owhile[j < people]
{1 x4 }+ \. P" \0 G+ I6 n[3 J/ B# s! [1 j9 F
let new 0
0 w7 A: l1 K# M+ m0 x1 o c2 T;;暂存新的一个全局声誉
6 e7 c# ?6 l& Zlet i 0' x$ Q4 Y3 ?' O1 _ q
let sum-money 0: ~' |) [. J# d2 A. p
let credibility-money 0% |% E9 I- G0 O& o, @
while [i < people]5 }; G4 _: @* V: X
[
1 B/ K& x! n8 S. t% _& bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 B5 J( Q- O- o Z! M4 }set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* l2 m8 t) k3 j+ ?set i (i + 1)
+ I& q, M- s' _ Y3 T" ~]
" U- h" v1 D- Z1 n Q8 ~let k 04 B0 y9 ^4 Z; y2 d' ~
let new1 0/ L8 A9 H1 C2 K1 T7 e) @
while [k < people]) i0 P. H3 Q1 r; g
[+ i9 ^1 N6 {" w; 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)" o, A& H5 d2 ?3 s8 k; ?; d
set k (k + 1)' y% L9 B* R, y' D% ~
]
0 g$ ]# ]' |6 p) L5 I1 |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - E# u! F# o; B; ]) }6 E
set global-reputation-list (replace-item j global-reputation-list new)
) l8 I" ^5 r7 Mset j (j + 1)7 E2 p8 D. f+ W+ a+ g9 X
]
6 c2 ^3 x# o7 pend
( j# A/ R& L( G: B! z3 i' t1 p3 R5 K" K2 {3 a d- L
6 J$ P' x* L: _. U& y( U& j
7 C$ }4 i3 q/ J$ b: @to get-color2 C5 Q" h& b0 q6 Y% _: H
0 {1 v' t: b% a4 y5 b& l6 q
set color blue* {: c" A! W6 i# s
end$ p: N6 H/ _, u: ^9 D# C7 L
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to poll-class
! N% l9 J5 ?( U& \% Gend" q' T, t% e& q' \
" z4 b) D; c4 M6 z& R1 g$ r7 cto setup-plot1
! k8 @+ R" N) M1 T# C+ K Z& z' o
0 }4 ^* [1 q- y. G) Lset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax5 G6 ]7 S0 {1 ]1 Y8 H
8 h( }! G% l$ U% l
set-plot-y-range 0.0 ymax" ?( I' I& U. H0 C2 R
end" R0 d. I- ^- ^2 v, Y) x
% z1 J) _8 V% H8 m* d4 h" Y: h
to setup-plot2
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set-current-plot "Trends-of-global-reputation"- u d* `# k3 u9 d& \
+ T$ t+ @ n1 J
set-plot-x-range 0 xmax) t; Q& C2 Q. h; P6 o/ Q- Z: q
! c. E, N$ B8 a, Lset-plot-y-range 0.0 ymax6 G/ D3 B1 R3 H6 I1 i9 B" W- o( b0 M
end$ s. u+ A: M0 B$ n: N
2 m1 |$ q# [& o8 C6 Q2 Z0 Nto setup-plot3
; \$ J; R+ w0 }1 K4 w' P- E# U7 O: K5 c/ b
set-current-plot "Trends-of-credibility"
6 x+ c; X" G; _. l* Y
9 R8 ^( @$ V1 ]8 U7 Aset-plot-x-range 0 xmax
" u b5 M' k+ @
) T9 ~ P/ M9 Bset-plot-y-range 0.0 ymax0 J4 b' z0 Y/ d$ ?( @0 R
end
$ @8 m& @ b6 c5 g% @* p: F2 e; N% ?8 X8 `1 t/ G4 e
to do-plots
3 R" I L* A0 }2 r) o, pset-current-plot "Trends-of-Local-reputation"
/ d f; ^; [2 R; _3 f, |# wset-current-plot-pen "Honest service"6 p/ Z S+ d* m0 v0 g. H3 B
end* g/ C, u( {. W: Z
0 ]/ O; _8 T: J* S6 D2 g" d: b[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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