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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1 N1 i+ a# ]5 [3 {( A: j7 K3 S) b# h# m
globals[* | s0 Y$ ~$ Z4 Q. ]7 f
xmax
' d' G* ?2 l6 r* ^; i* V0 ]# Y, Iymax5 y: B. o* f7 D$ x- S4 Y1 E
global-reputation-list+ D6 w1 f$ m$ v' Z
+ q) c; L9 V2 S) q
;;每一个turtle的全局声誉都存在此LIST中
4 P8 G% Y8 E8 A2 u& dcredibility-list
$ N$ r: t$ A. D h( ~& e;;每一个turtle的评价可信度
/ s) i/ ?! E1 U3 G0 thonest-service' V: h) B( R2 Q$ R+ j" F. y* [
unhonest-service# o: Y! C2 f# r. ^! Q) x
oscillation
) T* T" G3 m0 R+ [7 N0 G. Xrand-dynamic
0 B; c; P9 @' l; W' v9 L e& A]
$ M+ m6 I7 N9 H" x* s8 ^; X) H+ |# G) k! O0 G
turtles-own[7 G) c2 P; a% K" @- Y0 `' Q: f) _
trade-record-all
9 g# _; ?5 I! p% A;;a list of lists,由trade-record-one组成
. O" A" f$ u) v: u/ otrade-record-one) l/ R$ n( ?$ y2 N) M2 u& f* @; 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6 q4 D4 g3 A9 x n+ Y1 ~
) e3 Y$ v6 \3 W5 @: \6 D: j. p
;;[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]]
0 m# N4 A7 Q7 i+ \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]
9 M' E2 M) f1 U8 \3 Dcredibility-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
; k0 ~, l( E- w9 R m7 b) C3 A3 k- f. eneighbor-total
- d: R, m" G! S;;记录该turtle的邻居节点的数目' s$ ^1 t* C& R1 l
trade-time& T1 \) ?# S" o
;;当前发生交易的turtle的交易时间. W6 \% A$ ^; g% d, L g
appraise-give
_8 B/ p3 f4 F6 m2 f+ m;;当前发生交易时给出的评价
) e) w9 S0 H; n4 L5 aappraise-receive
; }: [; p( J5 Q* I( u5 Z;;当前发生交易时收到的评价
: N& a9 ?& f* j# dappraise-time
6 O/ T: r5 K& J" A;;当前发生交易时的评价时间
, h9 y1 R! H' u$ Y! flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 n. m) X; e+ @, X# mtrade-times-total! u; y' b, j3 w: E- v, g3 m
;;与当前turtle的交易总次数
7 n1 Y8 K" D9 ftrade-money-total
3 B6 t1 D+ F$ w) k4 \1 J; Z5 h;;与当前turtle的交易总金额) I1 _, }: s3 U
local-reputation
- f5 T: ` _, `1 _global-reputation
8 N0 h3 r3 O2 ~" ecredibility( m# l3 K6 p* z$ K
;;评价可信度,每次交易后都需要更新
9 H' B& k: N% D- gcredibility-all
% T, A/ O3 L4 A- h8 P) m& S;;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: G k1 t' I3 H# i
& U8 o g& R w& C
;;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% A2 `( |: C- l: X
credibility-one/ \2 k% a- e' R j
;;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
2 }+ ^+ }/ t( _7 n5 z, n$ h+ nglobal-proportion
, |: T" D2 @3 R1 \! {0 h( ncustomer
+ p* ~3 x+ U0 W6 |4 d: V+ D$ l( @customer-no
+ H. Z+ T. N" u o7 O! ttrust-ok
6 O; ]% }, k f! [* e8 Utrade-record-one-len;;trade-record-one的长度# i% I1 ^0 L6 q4 k% a/ I- Y
]6 t; E" U" G! h
: G" N f1 p [3 \! ?& i: u; h# I;;setup procedure- V' k) K& u! N$ Q: _
" @! z, `: F2 K+ Lto setup( H. n8 ^3 [' O2 e2 m/ D' N: V& x
* G4 c" w" m3 ~* [2 @; wca
$ ~+ O0 d/ p2 s; N
/ ~9 L/ N, U. b8 C8 ^6 F/ tinitialize-settings
. ^0 T( k3 v5 Y3 } ?% V+ [2 `" M
# @0 X4 B7 A5 i b9 Mcrt people [setup-turtles]
# p- {: d; F, A2 w( `+ N
( s4 y( Z) I( H! l# Freset-timer' R) h$ b7 i3 i2 h% R
( U0 J: l. K. J# L p/ j+ epoll-class
2 R5 J, s1 ^9 d% ?* M& g, ^: O' m2 ]
setup-plots
) G4 C% h, P2 B
& V: u" \( A! F; H; ddo-plots7 n: \/ o( E" ]6 D' @
end9 `3 K4 G% |( J6 u. A
E+ `* j: S5 Z( I
to initialize-settings
; @* }1 |- J8 T
3 l5 Y) N* |8 iset global-reputation-list []
1 h" g3 p: f; m( f1 d* f6 B% y2 O* ]8 [
set credibility-list n-values people [0.5]
% {3 [' O5 i! s/ L% e' ?1 E' L$ G# y1 L
set honest-service 0/ r: Y2 X& q' ~5 l# X; t
5 K" L9 x: Y0 w1 Kset unhonest-service 0$ F, j3 h8 x4 J( e
$ A- U/ F$ D$ {" X6 w' f
set oscillation 0
M6 r% f9 ~4 {# ^& k3 l
7 w( a" _+ a! J/ Y8 Cset rand-dynamic 0& @% G4 W" ?% G e
end
, y8 W7 G' s2 N ]* y) F% {' ]3 J0 W/ M
to setup-turtles
: {( a- c% E) K1 |* D; ^set shape "person" L, [. { |" [0 F9 n
setxy random-xcor random-ycor. T$ ? U& R8 ^3 C
set trade-record-one []6 i, {5 H0 n5 D7 u! S3 V
: @* H$ K* E- I0 hset trade-record-all n-values people [(list (? + 1) 0 0)] $ y2 J' J$ z8 o* W+ k# _
' D, o0 u3 W y" h4 uset trade-record-current []+ E _- x$ ]/ X& r' z |2 q9 K
set credibility-receive []
) b0 `5 v1 V0 K2 l( L _6 gset local-reputation 0.54 D m" u7 M3 R P$ Z( c2 e) T0 F
set neighbor-total 0' M- n* q" x% ]8 R9 L
set trade-times-total 0
) H9 c7 n+ _* ?8 k7 z8 H* S. C e# o& S4 rset trade-money-total 0
. y+ V, S6 Z; p) B- c) l+ j+ uset customer nobody+ K! `' ~1 P/ T+ |( U
set credibility-all n-values people [creat-credibility]
: i$ ^0 Q, s- D; A8 Z6 G+ K" Yset credibility n-values people [-1]
; W& n) z' z5 h5 A' C6 K1 k# qget-color
4 P2 {, E" E Z7 Y$ }
2 |- B2 i5 ?7 Vend1 a6 X& O. K7 M2 a, F8 W
: V6 T8 m4 D4 H' G7 ^' \ C6 q8 E
to-report creat-credibility5 U1 | i, Z) t- S3 D1 d# Z9 v; R
report n-values people [0.5]
% s; n& x% M$ F& n7 Bend
" `- o& s9 T+ B/ {
$ U P Q% M! c& m7 Xto setup-plots9 `8 t! a; x, M3 a- K& m7 }
+ ^3 e$ \7 Y! H+ ]. Q; t4 jset xmax 30& ~. H2 ` B& n8 \+ D
0 H8 P2 s' c( t
set ymax 1.0
7 w: D6 y1 a( P2 m8 n+ I8 F8 g* T: v( [& |3 \
clear-all-plots
( a" G9 q k# }8 D0 q( }, a3 A& F% j D6 l
setup-plot1& R% w! Z# ~; _2 F4 Q8 {7 q
2 d3 h0 q6 V' i0 zsetup-plot2
# p, O: k+ c- F+ N- _+ ]( ^2 H' L* R3 T9 A
setup-plot39 S+ C4 ^# z4 s; K/ |
end
( v& d4 G3 a3 B& r1 s7 J
) n& a8 y# m; r7 l" `) s;;run time procedures) c, E6 D5 F1 M4 m
* @6 B: c% [7 b7 k; K5 E
to go
_' U5 T/ C7 ~. N. u
m. ]( T' _0 U7 `- cask turtles [do-business]/ x/ w% _7 U3 r7 w$ [6 A
end) N' c- w; \; @; A
( i' I; C+ g. [+ i& y
to do-business
* S7 ?( z8 A4 S# j, j; z
% Y$ a& d7 p4 r w/ W, ^$ ~' V2 O. m3 Z8 S: L3 M& Z, E: U
rt random 360& F. g) |2 q3 n" g* ~5 w% J! o' M9 N
. q9 c- }& \* Y Efd 10 D( @2 G T/ }4 `# L
4 t: s6 a8 K& u( o% |
ifelse(other turtles-here != nobody)[5 z9 q& ?( m4 D/ B" D% ?% L
, C$ W& ?7 ]. @8 G mset customer one-of other turtles-here f5 R3 |5 ?1 N" z+ o$ _' i
# ]: Y9 K" X% G+ y+ p
;; set [customer] of customer myself2 ^: P' ]. r9 f4 e3 a. c9 b! O( y
% K$ Q* O- K7 b0 A& t$ y9 h( Aset [trade-record-one] of self item (([who] of customer) - 1)' i9 j! j0 i; ]8 U6 `2 E
[trade-record-all]of self% `% X2 B, B7 Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 d: {9 H+ g$ v- D0 c; T; j3 U" D# ~% K' i; Q' r" S, k9 L- z) ^
set [trade-record-one] of customer item (([who] of self) - 1)
. r: H0 ]) h, [[trade-record-all]of customer
" |/ e( t; P7 E7 q! n5 w; M/ d ^1 w( b2 u: {& P
set [trade-record-one-len] of self length [trade-record-one] of self3 U. x" R5 f0 m: y M Q& ~
c! w2 c" q; |
set trade-record-current( list (timer) (random money-upper-limit))) K' V% }( S4 w) {+ O" p$ l7 r
4 E0 p U8 Z: m: u- F: x. @
ask self [do-trust]. ^' v/ k1 w6 G8 W" n
;;先求i对j的信任度
! {) `" h) k+ R, j% H0 Z
/ ?5 g% p1 c! w: w4 `6 bif ([trust-ok] of self)- r* f- I' ?! ~$ s. b Y1 A. e% \
;;根据i对j的信任度来决定是否与j进行交易[5 n3 V" z0 J' r/ ^" b, W
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 F* U, |6 b% M' {, _
" t# J8 G2 H" B) ?, D[
6 u g9 w1 e# b9 d& `0 v0 m' R2 N- P' C' ^
do-trade
- }' f7 D, l) J! x
! _( c. v& [) X/ I, ?! y+ O, z# i$ @update-credibility-ijl7 ^( t# i0 T1 p& w3 t0 F7 }
1 l& ]! d4 e/ Z; D3 m. Aupdate-credibility-list0 P3 w. D' @0 C+ A
+ [( k: i& I( W6 O8 [1 z5 \
* {: C' [+ V5 }7 \update-global-reputation-list; @' R. L+ @. B0 O+ W3 m
: }0 \- Q7 Z) @! P( j; Z7 \; qpoll-class# w( Z( Y, |& z s: r) H
+ j; g; P8 l3 t, }( Iget-color
e8 @3 l0 |' f' N* y u& A8 G
! V. t1 }1 P3 g, ?- h& Y& f]]
t1 R" T3 J4 J: w6 b& T8 f* \$ C" _! h! S, J- v" y
;;如果所得的信任度满足条件,则进行交易5 y* B/ E2 l: ^( {# X( t+ @
6 N( ~& m8 p8 `, K
[
$ P l. ^( Q3 P- y
+ A7 d& F4 u4 S, K, w qrt random 360' e& m( v) k$ j1 m$ D+ A
7 M; K$ @* M9 g5 D' g6 Hfd 1
$ s1 h7 }# G) g( m2 Z( n- a2 o. F1 u' _5 N; w
]
$ `6 r/ H+ z {- W6 h% B. n( R+ b7 g3 v# O! D. Y
end
+ X* ?$ ?3 E$ T$ Z1 r, X/ S
! x' Z( x1 j: \, _& l; K2 Gto do-trust ! T4 o' Z* H% [$ A. S2 ]
set trust-ok False' ^! ^. g0 V# v% y j# g, k: _
0 _6 s2 w5 [2 p4 t! j' E) Q' r
6 a6 S+ ?1 ]2 c# A4 q
let max-trade-times 04 n; \) o1 u1 g# L$ \* t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 U, r A/ ]" A3 r
let max-trade-money 04 R) S$ H6 |8 D6 S- p/ c9 f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: ^& H5 o( L, {8 M* E
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! j5 L) r6 ] g. z( g; ^# h
8 ^$ G6 m; h3 a% U6 T! a
. G! u* v; W ]$ e# p/ hget-global-proportion
9 Y0 p9 a. v6 t% a0 V! S! V0 qlet trust-value+ R; n# U/ z: k4 Y. j
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)$ k1 I2 h' f) A; q" J
if(trust-value > trade-trust-value)& f9 j9 ~+ k6 X- W
[set trust-ok true]
1 n8 R. \. O, f$ | A% X& E- \! kend
. |5 ?; |. @1 i7 K# }! m. z% v7 n! J' J7 G; m' G
to get-global-proportion
' o9 }9 A" L# Z" w1 _8 y. d6 k. ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); I" J! \0 J& X; I5 A
[set global-proportion 0]
2 [8 a# g- K9 ^4 u[let i 0
- I( @% z6 r" Z! z! ylet sum-money 0$ a. [& P& G. t4 S- E/ V; T
while[ i < people]$ k0 q. c# q) j/ @4 ~5 a
[/ f* _# W( U5 j! a
if( length (item i
, P+ Y+ T* K6 {: c. z[trade-record-all] of customer) > 3 )
" T+ ?6 Z2 ?8 Z[5 B! Z6 B' f3 S# ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))* A4 D: M, P# ~/ L- p; N: c
]2 o# L p1 ]# A7 s6 A6 Q
]
& |! T# f( |1 ]" Alet j 0
0 M7 M6 |2 R2 U$ zlet note 0" `' p& G" v8 a8 A
while[ j < people]2 l6 t* e% Y$ ~- o# ?& U
[
4 e6 x% D3 t- C& p( I! B: bif( length (item i
" m# t+ d; n) x+ ^' `[trade-record-all] of customer) > 3 )1 A1 G# z `" H
[8 h$ K C1 v+ T1 Y0 m6 j
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* f# c$ F S) o- R: T, {[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 R3 h. v/ D" ~/ x5 ?' L" q, ~8 ]
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 S% i. p$ V" L% u) @0 n) e
]% W! ~9 V1 _, @) t* t* n
]
* N6 t: s6 B2 j/ ~0 C8 Kset global-proportion note5 G& U! }# C# |1 R% U* V2 C
]
7 G. }9 I$ e$ ^8 [" L0 Q: rend
+ g. e2 D8 g2 }/ Q( k
" ]+ `3 h3 E4 R% [0 g# oto do-trade
3 i6 |% |$ ?, j* v) F7 z* d;;这个过程实际上是给双方作出评价的过程
( e0 j' p7 t6 Y+ ?& G ], |7 I% Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 {- a, i7 z1 n4 g" J$ ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* J. [; Z. t# z+ h! W/ J: }+ m9 @
set trade-record-current lput(timer) trade-record-current2 X4 a0 h7 n: e
;;评价时间. K" y5 c) w$ [9 F+ `* p
ask myself [
, \; v _- v( m2 ]update-local-reputation
" Y6 m+ C" w- s8 Y# h3 Hset trade-record-current lput([local-reputation] of myself) trade-record-current
; ?3 o' {4 L- a1 q" G. h3 {]
! g2 R8 G! f% i8 {1 V' ^set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) J7 P: z0 @2 y5 X+ P. T
;;将此次交易的记录加入到trade-record-one中
: U9 Q# Q& _5 s- z" t5 ~& T# pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 P x7 J* j8 P" ^& Ilet note (item 2 trade-record-current )
5 P! \% S8 R& w" oset trade-record-current
! w# h' O6 Y1 w& Q(replace-item 2 trade-record-current (item 3 trade-record-current))& q% Q+ [- z2 x( x! d
set trade-record-current+ A }/ r& {- U
(replace-item 3 trade-record-current note) g* ~$ L! @% K
1 d( M7 S* n' V! b R; D
) P1 h; H: V7 u: \2 X) r D/ e- i
ask customer [( X+ p( u9 i2 ]; n- |! I
update-local-reputation
$ q Y4 G, W4 D9 b S1 m6 Lset trade-record-current. |3 K% B. H) c9 g. I) Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 @1 F6 J5 _: w: C# W4 K3 \: [ `]% ?, Z6 p$ p, u7 M0 s
3 y$ N9 [+ Y+ e: u$ b7 m7 p, ~4 X- q8 |' G- L( p. a# P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- W: s& c5 g; ~3 S% b, }* p
/ R& c( `) w& \# H( {set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): y( l! l9 x" @- c! S
;;将此次交易的记录加入到customer的trade-record-all中+ d! @$ e5 s0 |) a$ S. K* ~+ A
end
* G8 q* @2 a- P! n" w+ A: M" r6 K" I& o6 g, f5 `) R z6 R; m, m! L
to update-local-reputation
9 S+ V9 G3 s- l2 n; a Aset [trade-record-one-len] of myself length [trade-record-one] of myself: O" S \* V0 r$ |3 L T- U
: {$ G; F, k6 k h: I0 ~% m3 Y4 y! Y
* R+ `8 i& D6 v7 x; K# I;;if [trade-record-one-len] of myself > 3 - j0 x4 L: w: J/ {0 [: h6 U$ l
update-neighbor-total
B2 j" d. l7 i6 _* ?;;更新邻居节点的数目,在此进行& P$ j/ N3 |+ R+ U6 Y9 E, n
let i 3- y0 f$ [8 S6 x8 o4 N* w7 M
let sum-time 00 h% t N+ G3 h8 U( Y
while[i < [trade-record-one-len] of myself]/ z o% |7 R B, A. c
[# X# }* W. }0 l% ~
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 p; v# a$ H$ n( ]" _. W1 i
set i& I9 N/ {/ k7 F0 T' M5 |, {5 N
( i + 1)7 e2 Z- I3 G4 Y2 L
]
. ~8 ?6 t: ^% }let j 3
( q$ W4 M1 N- ^% Ilet sum-money 0
- B* R$ Q; ?! j7 J, |while[j < [trade-record-one-len] of myself]
% d2 ~: f/ _4 I4 N* S, p[3 ^+ b0 _, c/ m) Q2 |# {, g- K
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)
3 D4 A" U3 ]! S0 M" o" }$ ^% m2 `set j
, X% H5 v R" k: ^9 q: F) S( j + 1)) W: y3 j5 t/ N6 p# r- G g+ e
]
4 W" h! G( R# M6 [) vlet k 3
2 a( n$ ~; M! Alet power 0& K3 d- X; W2 }7 i( w
let local 0
! `4 i; e4 F; @. B0 [while [k <[trade-record-one-len] of myself]* N4 M! m9 V$ [7 z0 f1 L. d7 U
[
( \0 U y0 M6 Y* v4 F# p. N6 \) A- [0 Wset 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) . \- a/ H8 a0 T) j$ `( j9 H2 A
set k (k + 1)
5 ]) ?! t, Z4 f0 Z p! C! H$ Y]( Y5 i% }; Y) d! [
set [local-reputation] of myself (local)
5 d' e/ I9 R& yend+ n3 t+ q3 n4 C
# ^1 I& v# h7 E) c3 ]+ L% Oto update-neighbor-total% c/ U: `" b( }. q% }
+ j: m- R2 }% H& aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 b& j8 l# [6 [( i
1 W N# \& N# @' C( I) R6 i. t& I7 Y- B% g C' H0 r- u0 w
end
. A- {" R/ q1 }* d
* h0 K. X; e5 F) B" tto update-credibility-ijl
9 H% } l9 h6 s$ {6 @# b' A, Q3 ^" q2 {$ l0 t- g2 f6 n: w
;;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。
. @8 ~, z% Q1 ilet l 0- ~: G/ A( O4 s) s8 b
while[ l < people ]
& r0 `' c5 X7 c% K' _;;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. k. [' O0 ~: [" b0 w
[
1 ]# S0 V0 U" @0 [3 {5 V/ ?# @1 zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)* X" U' n* z( |4 j
if (trade-record-one-j-l-len > 3)
0 {0 H. ]: b! Z, U5 i3 W' Z[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
& h+ ^5 V+ l* C2 R/ @# ?let i 34 h, f, `2 w5 r) Y9 c
let sum-time 0
2 [3 o# U* o+ W& |4 _! {9 Xwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# ?4 o* Y' g+ M4 ^7 W+ ?
set i/ F1 e; a" Q1 J! B* k* t
( i + 1)
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9 k0 Z) W B* V/ |# f1 X1 G% Olet credibility-i-j-l 0
* q7 {9 s9 ?; s. F! j;;i评价(j对jl的评价)! C3 N! J, c1 w; J$ {
let j 39 Y. F* P+ \: c; _; Z) M# w
let k 4; l# y7 `" d& p) f, [, [" B5 { R* g
while[j < trade-record-one-len]
- l* u% @7 U& E[
$ v3 P- u" B' A1 p1 o; |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
6 e5 T$ ~: N' T* v6 k+ Qset 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)
* e0 v- c9 X% V) Q* aset j5 |* B2 t1 V9 c5 _
( j + 1)$ U) \# S2 J. V6 Y% @0 V! N
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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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! P1 W& h0 Q' N) G) b5 Q
;;及时更新i对l的评价质量的评价
1 Q: b: T: ?1 t3 M# uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 N3 V6 g% D V! d2 f# h
set l (l + 1)
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end! F. m# H( ~, g/ [4 i7 J
- B, b0 t& q" D- P! [8 B7 |to update-credibility-list
% {( Q; ]# v9 i* j) S$ d$ ]0 Mlet i 07 P7 ~6 N- I7 M
while[i < people]
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let j 0
4 c, t' i4 b ?5 y' O) |let note 0
" ?. U! T+ i2 V' u6 qlet k 0
& n1 U+ m) Y* B t' i8 R4 Q D;;计作出过评价的邻居节点的数目 e$ o" s' |% B- [
while[j < people]6 t6 G4 z$ O: A
[9 \1 ^7 K* I6 \" Z5 U! L# g3 ]5 I7 p
if (item j( [credibility] of turtle (i + 1)) != -1)
/ I9 J2 B; S! x6 X;;判断是否给本turtle的评价质量做出过评价的节点! P& X2 B& `( W* _
[set note (note + item j ([credibility]of turtle (i + 1)))
X3 F5 `& Q: @* @; l8 L;;*(exp (-(people - 2)))/(people - 2))]
, K* x+ L& S3 \+ M9 `( aset k (k + 1)
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set j (j + 1)
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" \' b7 d0 ?1 @" q6 Rset note (note *(exp (- (1 / k)))/ k)) Y, S. v3 Z% a) R6 ?# r! e6 a6 T
set credibility-list (replace-item i credibility-list note)
# T4 V: A7 r# ?# W3 r; ~set i (i + 1)6 ?2 e1 c v Q# p' r
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end
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to update-global-reputation-list$ V* K; F6 N2 \4 H2 B4 C9 d, H/ P
let j 0
$ c' X! W- ~7 N" j0 N; w' a4 i& W" Rwhile[j < people]: }# B( e- i' \1 k; d/ }# d
[
- X5 A7 z6 D u8 N6 hlet new 0
1 E* f* X8 V2 W3 \' X;;暂存新的一个全局声誉
/ F$ g1 |$ {9 l: ], Ylet i 0; \( ]* P6 r) Z7 b7 |" W
let sum-money 0
' M- v& d3 X" {7 g+ {( x3 ]* |- dlet credibility-money 0
& o) O! a) g; C: y6 i- i- v, Cwhile [i < people]: V0 F3 f9 C! y5 d
[7 [8 d- q" D B2 t1 `. r4 P/ A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), n8 V, [8 P4 t7 F: f+ ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 d* q) Y7 M/ p+ M0 |8 l8 K
set i (i + 1)5 y( L) [$ g, m3 _/ o0 V
]
6 n ]/ E1 q, q8 ^let k 0
( d) h9 h/ P6 w$ o5 N# H5 blet new1 0& G+ G4 f) w }. n) G
while [k < people]
" r. p; e; t2 R4 e# u: j[
$ U' e+ S& n9 ?' c, _* [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)
& ^/ J. d4 l" p" Q. s K& Dset k (k + 1)
" a% ]5 T6 W" t u u+ ]% a]
+ G) x% z8 o2 o& xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , H4 y' j9 a! W; y8 x8 A9 W* T
set global-reputation-list (replace-item j global-reputation-list new)% W6 _/ q2 S4 _* K1 v* W
set j (j + 1)% @! z: p6 V1 M
]- s! H4 n+ t" P$ W! p* ~
end
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( R( r4 Q0 m% `6 k- A, X2 t! c& \! R
to get-color% i! e& s! h) i) V3 U
( a: }* ?" L7 y* A2 m# rset color blue3 H4 X9 b5 ^/ L7 P# i: \
end
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to poll-class
1 n6 L1 s9 \, X5 g- R* {end
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# X( Q2 v$ x. a: h# O$ ^+ nto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax2 Q1 k; n8 a+ b3 p" H, o0 V0 L/ p
8 o. n4 y( y! H9 @. {set-plot-y-range 0.0 ymax
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2 _. U6 \- z0 ?5 X+ Tto setup-plot2% U5 R% e1 a$ d4 ~" v. Y4 ^3 ~, O& K
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set-current-plot "Trends-of-global-reputation"0 V: z7 Z5 I) I& g; F6 y0 G+ @- Q
1 W: a7 X! N: z0 W
set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax: k) \7 w3 D. o3 d9 V
end
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' g! ]/ j: I$ A7 v4 Z- v1 ~to setup-plot3
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4 F" @/ L1 N5 O( Z7 ]% Jset-current-plot "Trends-of-credibility". s# _ f) @" q9 E
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set-plot-x-range 0 xmax2 c; M: l* s E5 G& Z J' E3 m
( [7 G. P" n7 a
set-plot-y-range 0.0 ymax' ]) x( X9 D. ^# _# V2 e& e
end' _* n$ |( a5 [: y8 o$ C3 F/ W
/ L( M6 D( Q. `3 q, nto do-plots
6 Q! Z: g. u% M: G3 ]2 A7 fset-current-plot "Trends-of-Local-reputation"
; g, B8 c2 R7 E2 j; Uset-current-plot-pen "Honest service"
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, c" c/ n6 ]5 ^5 b+ N0 d[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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