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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7 M9 E% }3 `2 `4 e8 ]6 y
globals[
, |) Z! l; m6 I+ G9 {" s% }xmax3 X, C- l5 A8 @, m; f
ymax
, j: N, k4 y& b0 iglobal-reputation-list# Z; w! {* Z1 k0 A& N1 t9 M
, O* n# ^! i% l3 ^
;;每一个turtle的全局声誉都存在此LIST中4 l4 ^( s3 L7 z1 G$ r
credibility-list
u! @- W& W/ L5 F/ t;;每一个turtle的评价可信度
1 Z+ r, x' H4 v3 S! H7 H7 hhonest-service" w" k' m$ v; o6 I1 g+ _7 f% o
unhonest-service
8 B. g9 v* g' q" x; p$ C7 hoscillation
8 G) [5 Z" g2 q% h3 h2 ]! lrand-dynamic
1 ~: @$ a* x. `, y]( z! Y3 _* c; ^5 @ _
# [' t, `3 c3 _, B# N2 W3 c7 u/ u, J2 B
turtles-own[
8 F3 n# ?8 N$ m G, p$ B; x, `8 gtrade-record-all& q( R! J( A9 w6 |3 E; s1 q- h
;;a list of lists,由trade-record-one组成1 o9 c1 H& l1 m* S
trade-record-one. t9 E }8 P q$ s/ A/ c1 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
# U8 Q3 y2 j% A1 W4 k7 W7 e, r- T( u/ w0 z; H
;;[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]]1 v3 X5 `- R. F3 x, v6 _& Q" e
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 f* I' Y1 g$ z5 c# Wcredibility-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list1 q- g4 q/ ~4 t. g# ?1 C C
neighbor-total
$ M6 w* m; L. e- M3 x, {;;记录该turtle的邻居节点的数目 U/ F3 G8 ]- w
trade-time
% r$ S3 M9 ]) Q5 K) b;;当前发生交易的turtle的交易时间
9 A3 l8 b5 Y8 Wappraise-give
7 S9 @. L" p# a% z+ W3 A1 K2 J;;当前发生交易时给出的评价
1 S) g, u3 t/ L4 u3 m" Gappraise-receive
5 q H, z! T7 z; M4 Q% i;;当前发生交易时收到的评价
. u1 R7 d% O5 Sappraise-time
6 N! L3 a* S5 j# P; Z2 C;;当前发生交易时的评价时间# g* }& r, l x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 x% C9 m9 E7 |: A$ t6 B6 Ztrade-times-total m+ L- d- L2 `7 I, R; N; ]
;;与当前turtle的交易总次数
7 t% z) ?1 d$ Y4 v- ?trade-money-total
8 U* s" ~. y. j1 w' K7 ]+ o$ I;;与当前turtle的交易总金额5 Y& J: o1 l+ F8 B. f6 e: l
local-reputation
2 r0 I1 A' k) m: C+ Bglobal-reputation/ O+ f. c0 O9 Q) X6 w
credibility4 X& k4 m- C- F' I
;;评价可信度,每次交易后都需要更新
# ]$ b1 U. N1 J# U1 p+ R! O; tcredibility-all
) B/ I0 V* T0 W* k/ _7 a;;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 I4 l4 A) n# y: }5 M
( T8 c: H8 h" w1 W8 r3 H5 @
;;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0.59 ^+ V, \8 n/ M' P: {2 |; W
credibility-one8 f! T/ W% Z. j+ {: 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
( Q }) o) X+ P1 v/ Nglobal-proportion* W7 ~1 `; R4 K E: j M
customer
4 _ B& ?9 [2 E B/ S2 {6 Ocustomer-no
! g9 p& f) c0 {) S2 A0 T5 n7 jtrust-ok
9 K3 J4 p8 K5 d. F. I( L9 Dtrade-record-one-len;;trade-record-one的长度
% t# ] Y( n) ^0 N& {]( w9 D& }/ ^; d+ s
3 a/ m( B4 n' I: x: k( I;;setup procedure
& Q t0 k J" I# X5 |% s8 N# e' A
, k: B; p. a% W# pto setup
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- c9 `3 L. m. `- S- O2 Y: H. }4 lca( N. v) U2 |2 H- n
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initialize-settings
) N! P- B% t. t* H8 Q3 N9 J5 v- Z! o: u4 N& ~9 }$ r! W
crt people [setup-turtles]
! K- J" V( E7 o: K# k; i; U f4 k4 m$ X+ K; X/ o( A
reset-timer `* U* P6 i1 A- _$ ?8 m
! ] f% J; P* H$ |poll-class
/ T* G/ _2 C% [4 ^$ E1 y; r: R. ]4 X; x7 N
setup-plots
! ~* n' ?( N( B( k% f' ^$ F# i {* ~% L6 ~) m4 n
do-plots
, G* R& P! c* P" W4 e2 Send/ M! d( B% u7 b7 K6 r8 |
2 ?/ N6 d. {9 S( n6 B' U# m; B) E/ f1 fto initialize-settings
/ ?' O& j# R: s- n8 @1 f
5 @1 h# ^/ D9 H% Rset global-reputation-list []# H$ G' b6 w5 h# _7 z
- l! g) X: u6 `6 J, ]5 vset credibility-list n-values people [0.5]% A% j; O m1 n5 j* q
, {) m; C3 F- Z& y0 d
set honest-service 0: ^# }9 Q! n& Q& ?
9 c0 b% U% L; rset unhonest-service 0
& U" e9 `( \* l
! A' J( c. a+ vset oscillation 0 c4 m. {! t" {8 b
8 w5 ?8 X; P3 W" L+ x5 F. x' w
set rand-dynamic 0
+ y9 P; o7 |/ y% cend% \& c) x4 L+ t8 H4 D; u
) a3 {; f* u. i( J, j Tto setup-turtles 9 n- y/ _* H/ u
set shape "person"
' E, e% Q& R% q' b/ s! Ksetxy random-xcor random-ycor4 F& _# J" L$ [
set trade-record-one []! m7 }1 \6 @' {7 G+ Z4 M9 h2 S
0 _1 I; U) h! w0 ^* cset trade-record-all n-values people [(list (? + 1) 0 0)] ! \/ }/ ?+ I+ _. L
! l* {9 g5 d% @- U& H. a
set trade-record-current []
( q" Y' ^! _; p! fset credibility-receive []
- T0 G a" |9 O3 j8 iset local-reputation 0.5
( F6 T5 A+ \+ I* lset neighbor-total 0
4 j n8 h# @) R% I; ^0 Cset trade-times-total 0
q7 F; V/ y* U: f3 Y5 [. lset trade-money-total 05 r9 x, A. M" Q$ l4 I
set customer nobody/ R. Y H" L2 p
set credibility-all n-values people [creat-credibility]
4 ~) \: t5 A4 ]2 B, O. N& ~set credibility n-values people [-1]4 Y0 F# @! L7 g [# d
get-color
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end
% x% g! q2 J8 u! G* b: ]. |! O2 r8 V% `
to-report creat-credibility/ E! U" _6 A d4 k3 Z* o. b) R
report n-values people [0.5]
# {5 Y: \; e1 n8 W7 mend$ l$ l) o( S, F+ @0 {
; C. C; G1 I) z3 n ^5 J4 _to setup-plots4 W' p) u& @& ^# e! {: T' M1 Q
/ x1 ?0 i* l" R5 ]7 h$ [1 V
set xmax 30. t! n1 o' L/ t, ~4 Y. g9 T
# n0 n& i7 g9 P9 j8 t& J* p
set ymax 1.0
: ?4 F4 J$ s2 _' N0 u; c9 ~* _( Z# t/ e# n# A# S3 Z! s
clear-all-plots: U$ v4 B" O6 P6 r1 B! `
; k, S8 J, s& r2 }setup-plot1
+ R8 |- B! G$ L+ z0 h( j( d8 K! E7 R% I% B( S5 I
setup-plot2
+ n$ e1 x: J. n% i
) L8 R& T, |* \8 D6 Ksetup-plot3
4 y# t e A9 t4 l: |8 tend4 w, z c. Q, a* E# C3 ~
+ `9 }* q% [) i2 C;;run time procedures: _& {" P: @# b
3 \" Z0 [3 e9 Ito go/ ?9 M. W9 H3 j9 o0 o
6 l% O; M$ d3 ~4 N
ask turtles [do-business]( Y: |6 P0 S& p6 y
end
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to do-business 5 ?0 W; w" s% U2 y O( {8 Z
3 e& @6 \' J' ?$ m
( ^4 ~# s1 h7 B# \' h% m
rt random 360
5 }6 w P t" ^. q* c# n+ L0 k! k' T1 e* k$ I
fd 1( e5 d: _$ c$ d" o" j( Y# S8 F
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ifelse(other turtles-here != nobody)[
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+ w2 {+ X+ q5 s- @8 q! A$ j8 P3 aset customer one-of other turtles-here1 f" g" e6 g; g
3 W! r( S- U" ^4 H( S;; set [customer] of customer myself% j- I% ~' Z- a# G; K/ W/ B
* P# \! ^: K& ?) R% Tset [trade-record-one] of self item (([who] of customer) - 1)
; C a: z/ B5 z[trade-record-all]of self
6 [5 b* p/ e- _# I: _! i: d0 I' J;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& R! p4 A8 h1 c3 B; R, D# R5 ~9 o0 y, L7 {3 g7 U! R, o. _
set [trade-record-one] of customer item (([who] of self) - 1)( f/ w0 F# i. Z1 X! k: G8 h0 ]
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
! A7 Z4 d, B# U {5 A3 D2 l% T) F2 F3 }+ [& g8 X! l- i
set trade-record-current( list (timer) (random money-upper-limit))% `7 ^# O& K, q" r! o I( F4 R
e" s# K+ Q1 x ]: W" Fask self [do-trust]) v' D1 ?. [0 c# E/ W% e! W
;;先求i对j的信任度
# ]5 B; J' R( K+ b5 o* U/ t- S8 j
if ([trust-ok] of self)
6 C* ^! S, S9 l/ B( a: s;;根据i对j的信任度来决定是否与j进行交易[
5 r; J! j) @ ^" v, |! j6 P/ ~ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( c* J* j, j2 `5 _: Z
, Z" K2 T/ u3 f2 J3 W$ v[
5 w2 U: W* g( Q/ n& Y$ |7 B
, K/ i0 I" Y0 t0 E5 {do-trade
) U I: J3 w/ s' t+ R. _
! D" f m3 `6 Hupdate-credibility-ijl: w5 X+ _$ Y" ^0 `
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update-credibility-list
; f0 ?$ b4 G N' {/ x
$ `6 }! J+ c9 K) p
' G' d# s3 i( j) @, @$ s- }* K; K4 Cupdate-global-reputation-list
+ I5 S1 \ u3 e+ {) \! S7 a6 X) S1 J
% N& `- h# M) A9 Rpoll-class
x2 ~. t/ M3 c/ L K
$ u1 `9 u+ b6 ] G% |; R: lget-color! w M+ m2 I+ \( {
5 }6 `& W$ I" W
]]- y! r" d: t8 U* w7 n
" |* |4 v" ?% c
;;如果所得的信任度满足条件,则进行交易
; V7 _1 x3 ~) ?! R5 @6 Y' X# {2 T0 G) u" O
[
j3 N6 Q$ ^# Z a* }- y( t1 Q" A: g* ^- }, o
rt random 360
+ A& [: r6 @4 Y' B, r" Z
" E6 L; H8 O0 s$ |0 K2 }fd 1- l- h1 h; \1 s- R$ n8 P3 w
0 ?, t9 D9 }9 ?( I' L- }, w# I
], n. @$ f1 ~ }7 p
1 w! L i& m9 U, E2 C: |. ]+ B* m L: Send/ f5 [2 F7 _. z. n# b& N
( @+ F. Z# C4 I, e4 D; F- k) U; x
to do-trust
) [* A+ O7 }: S! Hset trust-ok False1 X4 S/ v7 Z+ o/ {. s
/ V/ C* [3 u6 k$ W( \5 L L5 \+ R. Y6 o6 N ?
let max-trade-times 0
7 Z5 }" t" J% v7 A' p% Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' y0 ~2 ~2 S6 J* ^9 v4 m! R
let max-trade-money 0
6 t; \8 L/ c7 M4 v" b1 L1 A; Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" B: l# N; Q. ^& z) N4 Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 i( }, x) k5 b1 d U
$ h7 O9 v0 [2 }8 A
6 n6 X n" S4 ^+ T/ aget-global-proportion
+ p: m' R. h( ~1 {# ulet trust-value) N' y1 y0 U0 o+ C
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' |( F; @8 L" V$ i- H3 m X dif(trust-value > trade-trust-value)
& {0 |' \) \4 y- {& s7 m[set trust-ok true]
; G4 u" B9 _% U% C0 e) i* u0 x# gend% e0 ?5 K: u5 D7 p) `
, k1 g1 J, J7 s4 ^4 w6 M5 _
to get-global-proportion
$ @5 [* A9 G( A4 {/ pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* Z1 {$ V/ R& d+ T8 u
[set global-proportion 0]
' m; G" d3 E d[let i 0
! B: m( O% | C" hlet sum-money 0
6 Q/ l) f9 g$ i8 N* I4 d: F# lwhile[ i < people]
2 O) `/ v t$ Z. L" m: U, \[/ ?+ m% I4 W6 I
if( length (item i
- S. S2 c1 U; k$ ~! F5 J e2 H[trade-record-all] of customer) > 3 )! M; B, z% _4 e' j4 u% p# L& ?$ x
[
& e7 B' ]) f8 C6 ^, _- Oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))) |7 Z8 u% _) ^; T2 u/ ~
] ], R: e7 l, L! q5 \8 [" ~6 G8 b4 Y
]
6 \* O6 \% u* R. u3 glet j 0
" c8 r) r+ o3 z4 klet note 0& |/ H1 k/ o5 W( v/ B% \& F$ e- B
while[ j < people]5 J: M7 N0 `, y
[
& F# c+ C, U* C' Pif( length (item i
& r) Q4 C5 c/ j2 s[trade-record-all] of customer) > 3 )( M3 t; k) Y1 i
[1 ?8 @) D% v. H4 M% }4 Q6 j
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; B/ N! j) E% ^4 K& V% W [[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 T" P! b/ C7 W# j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; j/ C$ n6 ] Y; g1 k6 D7 p]
5 D, q) z5 m7 L( ?! ]* b" l8 a]6 E$ y& b# ?" Z0 L& O
set global-proportion note
. ?6 ~1 x# K9 c- y]
, J: j, l: I- U6 J! n1 ?/ N4 Z7 a4 Eend/ U) T; ]2 i M# b8 ~0 x4 D, r6 K
4 n6 O, n. b. \! H4 n5 x
to do-trade
' x* x n- a0 x3 v& }# i;;这个过程实际上是给双方作出评价的过程
4 N5 _6 q m# q, Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# |8 c" J1 R/ V: H& G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 U8 F5 ^" g- o/ A n4 z$ |set trade-record-current lput(timer) trade-record-current
! T# o0 |) R" O) j# ?) u3 k% M;;评价时间
- P7 R1 h% ?, c3 p, aask myself [5 G( W1 m& m, G+ k2 `) {' q6 }
update-local-reputation
! z! U$ J5 ^! xset trade-record-current lput([local-reputation] of myself) trade-record-current
9 ]5 Z: ~) @5 i]
7 i5 z5 f9 K3 ^7 ^/ p* xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 n4 s6 ?" e( h
;;将此次交易的记录加入到trade-record-one中
; Z# _. i: i- s a2 ~8 b7 Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 _$ ^% g! J" g- X q+ Z. E9 _0 J- d4 ^let note (item 2 trade-record-current ). x2 n$ Q* D& d6 c
set trade-record-current
{/ n l- m7 ~(replace-item 2 trade-record-current (item 3 trade-record-current))! G$ V" q( d6 |# ^+ Z
set trade-record-current
2 I* b+ E4 C: V(replace-item 3 trade-record-current note)
: `1 i9 n! N$ C1 ^8 X
$ {$ v9 r1 `& p5 e! M. L8 D6 y t* X
ask customer [9 ?# { Q X( \) L; ?& I" x- a& t
update-local-reputation5 o) E) V, Z' M" y* ~
set trade-record-current s% T$ Y4 n- f+ I2 J& W% A$ M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 q6 D5 u8 H3 S1 g' P) P6 [
]* C/ }4 y- T4 i5 s3 n
) ^6 ]# b, n1 T) k( _/ L" E; ~9 r
. {- r4 Y' S k8 ^/ b
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 e7 Q6 l& D E
: i; R. T! G0 s) Y, l
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ \% J( U# g, `. m
;;将此次交易的记录加入到customer的trade-record-all中
" I, }8 W4 I' s" @) Eend. U6 R: ]. x' K4 S1 i
# P" w5 M/ j1 @0 w
to update-local-reputation
9 S7 a/ j7 V/ Q# H7 Pset [trade-record-one-len] of myself length [trade-record-one] of myself7 c5 k. }6 E+ U. y! X3 g
6 v% S/ [' k! g7 [
1 q. g8 G" W, F$ r6 A;;if [trade-record-one-len] of myself > 3 + w! {6 f$ i7 X, S
update-neighbor-total
m$ w, }) y& ~4 F8 e! e' H$ J;;更新邻居节点的数目,在此进行7 c1 j1 f; c0 X; q! {0 o
let i 3# M0 e# Z) `4 E6 ^
let sum-time 08 b$ P4 ~" V& O, [/ N) [5 H
while[i < [trade-record-one-len] of myself]
7 w0 ]$ B' M: }4 ^$ D6 @[$ b) g$ @! V0 i9 @, X. J) ~
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% R3 m: G! O. H* v7 c9 r
set i
- c( s* R1 K. d: i" Q0 o! `6 ~( i + 1)7 a- W; K, F$ H! E
]
& ~- p. m+ U" w+ C5 a4 \; @let j 38 L( `7 a) v8 M+ [' y+ }
let sum-money 0
4 h7 B+ Q: t* \while[j < [trade-record-one-len] of myself]% {1 [% H" [) Z
[
$ y+ d4 y4 v4 g |, I! ]+ Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% ]+ @# S9 n; h! ~/ ^0 Cset j
) s% f; M% D6 L9 {5 r( j + 1)
2 \0 `4 o3 f( x0 R, t]
$ c5 y1 L; d- ] Q4 G( Jlet k 3
# b% h( j: R# V$ Klet power 0
& Z$ E6 a/ t& ?* t7 W7 O" F; olet local 0
* M$ J ] G0 D" q" L1 Wwhile [k <[trade-record-one-len] of myself]
+ w% w* h6 K3 Z[6 [) S2 x$ }' P. O$ E! e
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)
8 ^+ M* h4 Y8 c; h5 Sset k (k + 1)
5 O4 H; \- m# J/ p7 f]2 L. L) N: |8 Y% d
set [local-reputation] of myself (local)
9 w" a8 d* ]" [& Nend
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to update-neighbor-total: z# i. [5 O5 N6 S1 B6 ~4 Z
. I' c: E+ i K% O
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
% r+ o8 H' |' ?2 r% X/ @ w1 l+ G
to update-credibility-ijl
5 l) a# }4 x- \& }8 U) H
9 Y6 n! i8 ~( D J6 F;;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。
! K4 d( w/ j3 \0 O: G# b0 w( {let l 0, M' Z5 R T/ b2 Z+ ?6 O
while[ l < people ]6 z/ g) z& o& L: S% h* v
;;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 W; ^" J( |+ z+ G; V0 s1 `2 T
[
2 Z0 h/ R w0 A. Q- ]8 Llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 G9 M/ `8 B Y' u& Iif (trade-record-one-j-l-len > 3)" q* E O* S% O- `# ~1 U
[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
% u2 Y4 O, e( b* `, L/ A: dlet i 3! o$ [ o/ o$ e6 y7 X% n/ I" L
let sum-time 01 A. T- T; V* G. y }1 d/ }
while[i < trade-record-one-len]! T6 \& U. O2 q% M4 U; _6 _9 B
[
. X+ ~$ S3 G2 z% S; V7 yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) r& d' I7 f' f; z1 M
set i% n1 T/ U, ?: ]5 e" ~8 j' f$ G) x0 c8 E
( i + 1)
9 h/ Z1 ^; S' J+ o1 I9 g]
, L* {. ?0 P( n2 ulet credibility-i-j-l 06 J3 T _8 V2 I0 P
;;i评价(j对jl的评价)
1 s. b5 S- v' \$ H. c5 o) Ylet j 3/ j' L# Q$ Y7 G& U
let k 43 ]$ ~' i5 ^+ D7 D: G$ w( D
while[j < trade-record-one-len]9 V( C1 k, Y: i$ @2 Z% Y
[
' g' h( I+ `& w' O# ]2 r; Rwhile [((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 W# C; J- H0 O( ?5 wset 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)5 ]3 r. R( p% r: j; Q0 Z+ Y
set j
+ D* K. B1 N7 Q! _. _! r( j + 1)
; F- g2 E/ U. n. j' J]
; [& j& M: _) Xset [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 ))
" ~5 P2 ~0 f0 J6 }7 a
1 ?+ X' ~7 ?+ A5 d i
2 \; E- ?( J$ O+ }0 n8 S( {# \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: s' c( M: L8 G# H2 M: X6 m. z3 M;;及时更新i对l的评价质量的评价
) j w/ V' }5 U" a9 u, G* `1 I( T6 \set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 p9 V' a& D3 S( O5 s0 J& K% g* Wset l (l + 1)
, Y9 H" f* c& z% Q5 \0 |4 k# a]
% ?' k& I7 [) k) V- U( Kend5 d, n! O3 D. o2 t; G! R3 p
h# Z \) c+ }' \" k" a: v/ ~to update-credibility-list: w( I& n$ P1 g3 W% B2 z
let i 0
" ]* s" S3 Q1 N& L iwhile[i < people]# ~# X$ h3 ]8 w* Y# ]
[
: m$ \+ E' ^* d2 D8 J6 f* Clet j 0
& N: X5 i U C ? i8 M- ]let note 0
`* J1 n U3 Blet k 0# a: W7 u- @9 F- N
;;计作出过评价的邻居节点的数目' n% h9 K" U# K% l/ M
while[j < people]2 `+ F2 M9 E5 v- Y( D% E! m
[, r# _$ X& |' F( Z$ l& j
if (item j( [credibility] of turtle (i + 1)) != -1)
8 x' |( u# |2 z/ s7 k2 g; K' B9 h;;判断是否给本turtle的评价质量做出过评价的节点
: k" v1 l: a- i ~# x, o[set note (note + item j ([credibility]of turtle (i + 1)))
O% ]5 ?: e2 e' Y+ ?/ Y;;*(exp (-(people - 2)))/(people - 2))]' l/ ~3 c& G8 k8 U: X
set k (k + 1)
' X" B" d8 ?: D+ k]
: M; ]& S! W5 Y, ~) lset j (j + 1)& O: Y0 y9 O2 g/ g2 {, O6 M8 ~, B( }6 S
]
' u* h$ f3 p2 F4 h: k5 x+ \set note (note *(exp (- (1 / k)))/ k)
2 u4 y/ A9 }' ?- B9 Hset credibility-list (replace-item i credibility-list note)
( v P! y1 n! N/ n- r' P( x8 `set i (i + 1)" D5 I% Q/ b$ I+ w7 B1 k
]2 A" x, p! W1 d7 A
end
) a5 i& O- r2 { _0 Z# u8 L$ N4 i$ L- F/ _; k8 y
to update-global-reputation-list
- G1 V0 A4 g K( f' \% clet j 0
) E/ o5 _" c' t3 a- G8 k& lwhile[j < people]
% u: i+ ?0 ^1 H7 a& O[
5 `+ a$ H9 m! ?3 _8 ~let new 0# e0 I9 ^. p b- y+ A6 W9 l
;;暂存新的一个全局声誉) ?( {3 v1 Z, M$ l5 X
let i 0
' t6 e6 y5 i9 W# v" ulet sum-money 0
7 O3 l& @# \* d- X! llet credibility-money 0- A! j" a2 A7 n9 }' k5 d
while [i < people]
1 P- X7 L( y# D: [[
$ F7 \& h$ \" E% A( k3 e$ M, ~7 }8 Lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! r, m" A% r0 W/ Xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 |" H# E1 n4 uset i (i + 1)& P' U ^$ V0 k3 r" ?
]5 z$ s+ f* J: i2 e
let k 0
& K( Z0 P% o( D4 n8 r/ \let new1 04 n7 G) t6 n3 Z
while [k < people]5 Q$ t; d/ Q/ F+ D- x
[0 A) i8 O+ H; F8 e* j
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)
F* o6 U4 m- O& ?; qset k (k + 1)
. s/ K' a: b, o6 q]
* Z2 p0 z- t( y) ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # T5 i: P7 l0 O! G- q' ?
set global-reputation-list (replace-item j global-reputation-list new)
8 C% `+ X+ s* n9 m7 k6 ]% Lset j (j + 1)
: x/ z) p6 R4 [1 q! O) Y# |]4 i5 t" J, m# Z; P1 W" r$ G
end) C0 k& r2 f% f: Q* Y. v
+ R$ o: T* n! e3 F- F
% X. B3 k" Z# Q" n4 {7 O9 T" G" k; z0 U2 h! R
to get-color; V5 K2 M Q+ K' C. B
+ N0 i' G8 ~" Y6 b+ r$ {set color blue" F* N b# N9 U- W* Q8 w7 x
end
! e* s1 D% a* ~, [4 H: _0 z1 j3 M7 v5 s9 ^3 c% }
to poll-class& F( `( g, i2 D7 `8 I5 y) o
end
& X% B/ c6 F( Q0 I3 u' U2 \4 |* m& N2 j# K" T
to setup-plot1
, [' [! u6 C9 a& X' r8 p5 T5 W ~0 I4 x6 L8 I R* n
set-current-plot "Trends-of-Local-reputation"8 e7 F3 E' C% s3 p8 R$ k# H
" S0 |# v( l7 H+ w3 _- W. m, g& wset-plot-x-range 0 xmax4 n( Q l: b K) D
/ v! H- H/ ]$ N" @3 D6 @, Y+ hset-plot-y-range 0.0 ymax2 m' F5 o# I' t* _. I6 D
end
! [8 D( ?7 c( U& _( S# c6 g! p
to setup-plot2
7 n. K) v0 I# Y+ T; i# H. g
$ C+ Y+ J* U. x+ }" K- z9 }set-current-plot "Trends-of-global-reputation"
' [' ^8 D" J! Y8 K. G. C1 S& d( z: a
set-plot-x-range 0 xmax
4 V* G: a5 G; f6 ~( O4 h+ @3 e0 r( ^) C. ?) K! K) u* B1 N3 c. \
set-plot-y-range 0.0 ymax
/ c4 X G: A, G, @+ q; uend+ f+ ~# s: L3 U9 [, c' e9 E9 {
9 b8 J6 B4 l4 i7 Dto setup-plot3" F$ U) l* ~0 |: @9 z3 \. T
6 U6 w6 V, {; `% m& ?: O+ i" aset-current-plot "Trends-of-credibility"
; O7 ?" n n& z9 A# i" u% S0 a, k3 t% X" W Q Q2 X
set-plot-x-range 0 xmax
* r6 t- C7 a0 x9 Q
) e* N% I+ O7 q* Q6 oset-plot-y-range 0.0 ymax
- O: B! n4 x+ P# g; a# {end/ e& m5 c, L! g" p
; R, @, W ?; m1 p) j% n; ^
to do-plots
! Y- Q) h' Z7 M! k) o4 \% [set-current-plot "Trends-of-Local-reputation"
. V5 F4 r* j9 d% @% Uset-current-plot-pen "Honest service"* a4 F, E; @9 @
end& w, f1 V6 X _6 h( x" f
+ a/ }$ p. P. v+ o& @: g* T2 C[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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