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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 \3 a6 b( W/ q, q8 l3 V
globals[
7 B6 \; N, a5 Q7 W0 X; qxmax
4 b/ c: v9 B; mymax0 X! F3 ?6 v- \ v
global-reputation-list
, G6 s8 s% @! I: E4 l3 _$ Y1 a {# }4 \7 Y
;;每一个turtle的全局声誉都存在此LIST中
9 i9 \, v5 X5 U- @$ r+ [* x! Zcredibility-list7 w: `2 a9 i* Z9 {- @
;;每一个turtle的评价可信度( o, x k1 k7 a
honest-service
0 k$ A! p6 g0 zunhonest-service) H* F1 {) \9 R5 y& e
oscillation) b) ]1 }5 a! i8 R' t
rand-dynamic
" q0 Q4 K3 N7 I$ d) S( G- E+ C4 g/ L/ Y1 w]/ f S9 z. @( p4 u4 n; i" i/ S
: q3 i5 k: d# v/ l7 z- x* V
turtles-own[
% I0 M/ f+ [1 W2 {6 y, \trade-record-all* Q. F' O3 @# m4 a
;;a list of lists,由trade-record-one组成' M. [* g7 ^ W
trade-record-one$ b) G* L, v# T! s) L! k
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 {% f3 j% ]1 y9 {
/ ~, S8 V! _" i9 G) i2 C" E. o;;[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]]+ H+ s' U& P+ v; y# o
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]
. n1 d( ~$ S% u8 _- bcredibility-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
' J% D. a) S5 _5 Xneighbor-total( L% i u' ~% K4 S, w7 G" W' M
;;记录该turtle的邻居节点的数目
, P# u# I9 y! k' |% R% r, G- @trade-time
" M0 ^5 h( @+ a8 q1 o& C& S;;当前发生交易的turtle的交易时间
7 ^1 ?; X1 J* s1 @3 r3 Gappraise-give( j6 \: x* r7 o" U1 l; W! b
;;当前发生交易时给出的评价
' q4 a! q& V! u Z, ^3 t, Yappraise-receive5 x' ^3 h7 d& ]
;;当前发生交易时收到的评价
3 r: W" ?% H: ~+ T; q8 kappraise-time
; N2 d/ \3 R3 u; Z, e; R;;当前发生交易时的评价时间
. w3 H$ a2 ~9 u. }9 i* V/ mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉1 | ^! G' B" s, t& m8 H( B1 w
trade-times-total
% L3 Q( L2 O/ r8 V% B4 M0 ^;;与当前turtle的交易总次数1 S2 j! C2 w/ R* l, w/ b5 j
trade-money-total/ j7 ~: z3 L* s. k
;;与当前turtle的交易总金额2 e) L; E& h" a4 v$ N- O
local-reputation n. [* L* L g% L; b/ k
global-reputation
/ c' Y J6 n6 E4 v7 Wcredibility
% a* P& k* W3 c& W0 x8 \) f;;评价可信度,每次交易后都需要更新! h! D# `2 W' H: P* D2 A+ r1 x
credibility-all+ Y4 O+ m) \% G: h' h& U
;;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1 ]! d* [% i" M7 i- K
6 m; `2 M+ B7 X) a" 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0.54 @5 m7 R6 l2 J7 Q* s
credibility-one2 {0 s' }+ S4 H/ b. f" 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% O( s+ [5 A1 R' j6 `; x- |
global-proportion( `) l2 e- W( Q! E3 u3 q( t) _8 L
customer& }+ I! N; J9 H
customer-no3 t$ @: Z9 z$ B$ y9 x
trust-ok; q) a2 Z9 n* c9 l
trade-record-one-len;;trade-record-one的长度# M+ a; y( i) s
]
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( x/ O& M" @ I6 r4 k; e! x;;setup procedure# n, _: [. A3 P
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to setup) m, }2 E9 o; {" n' u+ m
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ca3 [$ U$ q4 \5 b! t" K' [, b
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initialize-settings
, p0 u. z8 i# \7 ?# ~
' O% M' |# I9 {$ a& Bcrt people [setup-turtles]
$ w* T2 `% g" d
+ ?, |! M- m. A$ t" c- P% B9 Areset-timer5 V a: J# r' |7 I1 k7 _) U7 c
8 ^3 B$ ?" v9 R+ w8 `8 P; \6 _poll-class
+ r1 ^) |% {( J+ e7 J8 o4 C1 ~. I( P: { A0 R
setup-plots
5 `& f6 `8 ]' k# x. Q3 g8 ]( `4 F$ }" C7 i
do-plots
G9 l- T/ y- l. {! eend
$ u7 v9 H- {7 B; f3 n7 ~1 q% L& a: ^) w; @5 h
to initialize-settings+ C' y2 W1 `, o3 v% w* [7 Q
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set global-reputation-list []% i# Y. u0 X/ m( `
- g T4 U0 {0 q( \
set credibility-list n-values people [0.5]
3 }0 S$ k) o0 H& s) { u7 |2 M; w) T" j M& \+ S. q
set honest-service 0
& m7 W% p% g8 J' y0 I' i! G
" A: E* _/ @* R) K, s+ V: N+ jset unhonest-service 0
, }( i* G$ d( l* i$ P; B2 ?! T( Z
5 A- [5 S8 P3 I2 [set oscillation 0$ A5 ~& L- i6 P- A
# Z/ Z* y) S( h3 ^
set rand-dynamic 0
& y* z ]3 `5 V. k c' p3 xend" m: J2 O" q7 M1 M6 _$ K+ E0 j' e0 R
: u7 a* o! K6 x. V
to setup-turtles
' {/ M- G# o3 B9 R+ j! rset shape "person". _7 c& a8 {( ^$ {9 Q1 I- `
setxy random-xcor random-ycor
; w/ L8 i+ \# ^" v% f7 Cset trade-record-one []) K0 _2 e* n% d* w2 ?4 X; D
0 g. n( h3 ]' L% R, @6 |
set trade-record-all n-values people [(list (? + 1) 0 0)]
$ w8 v Y& }) e: y
, ~3 {* v) h8 Zset trade-record-current []3 h8 B+ C/ \$ |" B
set credibility-receive []
, G' n; i$ G+ [, h% Oset local-reputation 0.5- A' s3 }' U u; H! C Z5 H, L
set neighbor-total 0
8 h3 j) b+ x- G' D7 d. Sset trade-times-total 0( m) l# J" Q! @/ a P1 e' T
set trade-money-total 0
$ h( k2 L" p' J2 {9 dset customer nobody% c7 O0 Q) T: s! l
set credibility-all n-values people [creat-credibility]3 {' [3 @, e6 J/ J( A) H& m
set credibility n-values people [-1]
& l C! c& {$ ~1 E" C& m! v) Gget-color; F7 R2 {9 D |& q! n+ g
( Y2 g1 T+ q& K1 w0 c6 y4 Uend
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to-report creat-credibility2 T' E% L+ b y$ |1 U
report n-values people [0.5]* U" t+ Q9 L1 I; G" Q& u B
end2 K' J5 `2 g1 h. h: \; l" x5 I, L
$ A, r' G& Z5 [) p6 `3 T2 E0 S
to setup-plots
( u( o p4 J5 e& s4 j6 M6 x+ Y5 q- _* P0 v3 P2 `
set xmax 30. o- c/ i, b8 Z* K
- A; D' V7 }0 p( U4 W Sset ymax 1.0' d) q/ b5 c4 h3 W
% L* Q" r0 Q4 W% @clear-all-plots7 P5 L: M0 `: E' s$ v0 A8 C
& c1 J* m K: W3 b( n2 I9 ysetup-plot1, |! @) F. f" h/ F
" h. C! b% O( ]+ F6 S' osetup-plot29 Q( f) s" H+ l1 ]
: h0 H! O/ W! D
setup-plot3 c k& Z% r* z1 B" G- k1 K
end
8 }; w4 N a) z9 t+ q% Q' P3 H* X0 c) B% M% `
;;run time procedures {& t5 c- T; `0 O
1 I% ~8 J7 @( N5 R4 D, sto go
" K; l2 e( l9 V& p, V$ E( h
4 D; T6 h9 M& eask turtles [do-business]! U( p+ _4 p. ]3 F5 L
end ?4 I. k& t4 e- ]- x, ?% S$ D
9 @$ ^/ \6 K n0 Q6 { l ~, ito do-business / W, { R, i+ X, ^/ A
+ T: g+ b$ C! w8 _$ i# c; b& d, K
8 X% R2 j' `. V' ~( g
rt random 3606 b% y) Z1 Z; k6 w1 K: h
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# l% l( n0 A j) q9 `1 u& @6 D% d) Q1 J g5 d0 s5 ]$ p2 o
ifelse(other turtles-here != nobody)[* y/ N/ s: c" |
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set customer one-of other turtles-here, U3 \: b$ V5 p0 r
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;; set [customer] of customer myself8 x) Z( S% A5 L
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set [trade-record-one] of self item (([who] of customer) - 1)
- M F& c; n, B3 Q- b9 H[trade-record-all]of self
+ Z2 T6 q3 e; L( o K, i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ d4 B( p$ X. R- X. ]6 E
]% g! r8 Y3 G0 R$ D7 tset [trade-record-one] of customer item (([who] of self) - 1)5 @9 ~; c! W* c
[trade-record-all]of customer; h2 T: g/ P# Q S! p& p! H
8 [2 I, n) N) W8 Y/ U6 Yset [trade-record-one-len] of self length [trade-record-one] of self
- i p+ n2 P0 W) H
. I( @# K! F7 R$ w$ |! M' eset trade-record-current( list (timer) (random money-upper-limit))
+ L6 O3 v2 {9 k6 {2 x2 |% B# o n9 f, T/ \+ F( S; ?
ask self [do-trust]& `" R% B! l C" K: N
;;先求i对j的信任度1 A: I) v2 a3 n. j
( K: @- L6 F% O; H( }7 H2 @$ Nif ([trust-ok] of self): L D/ Y, u7 m+ Q1 I% Q
;;根据i对j的信任度来决定是否与j进行交易[9 h1 L5 X1 k( l& o0 P
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, k5 v4 R E0 C3 X: g
) Y$ `, n& \# @* n3 `& ^2 M[6 v: ^; F) D, L0 _, _# m
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do-trade
6 q; B6 ?, n( C0 A
8 T2 Z ~. Z! k- J% V2 p* Wupdate-credibility-ijl
$ i+ {* V4 F/ s, f" ~, s- y: k: d7 _% J& C1 u: @* A# `
update-credibility-list
, I: T( o5 v, t' ~+ F% U0 K' Y
! \% l# K. H% U7 C. F. H2 z% ?/ n
4 K$ t. t8 S# W8 i; u' K+ Nupdate-global-reputation-list$ @: J P4 U9 e
% x- b1 J2 d9 b7 L: |: z$ ypoll-class
* ~# d. E$ S0 M5 A# I" ?7 I( n; `/ G# a( z. L
get-color' |3 [( g. e1 n1 q4 W/ S7 J! d
, l$ K& a: A& K# `
]], L. b* j$ z" q6 v, | L
( Q/ w" u/ n9 S2 q
;;如果所得的信任度满足条件,则进行交易9 X* H' H6 _: G4 N; _& f. [! w- u
; H0 T2 K* Z4 z. S' E( F9 K( C[0 a) h) ~( T9 ?$ D
. I+ x$ e( K+ l
rt random 360
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( M) d& n, s* \: B$ q# |fd 1
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7 h6 w2 [* `" b7 b" q* b0 n]0 b6 D8 r# n4 O0 W
$ O2 X- \" t) M) u2 V% J2 Oend
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to do-trust
: {. }; {5 r3 f. q/ o# F7 }set trust-ok False4 K( I- q) p! U9 c6 k' x4 Z5 s8 e
+ n3 ?, r- W- M7 W% X
8 h) E3 J; ]" [& g9 w! E4 f
let max-trade-times 0
7 H' h: F1 r" I) ]" s' {( [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 I3 L: u2 x1 R$ L6 `* n( V
let max-trade-money 0
0 T- ~. o& Z) b! ?3 T, Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 O. g/ O7 K( o- O/ Q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' S% R8 w# B3 ~" m9 p; ]3 w6 l E1 F3 Q
- ]4 g, z. D( B: s- i, l$ C5 o2 c
get-global-proportion
5 Q: m8 q9 B0 \+ _; v5 x. Klet trust-value3 E0 f: s+ ?- O0 ~6 H. ? 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)
5 C. R6 ~3 _! G. J2 Tif(trust-value > trade-trust-value)
: `$ t4 D( d7 n9 s7 E6 @ r[set trust-ok true]
, Z4 V* K: X( ?/ i! C6 Hend
5 c; m: c/ K& E3 P) L. A8 }% H# s! L* _+ j" t
to get-global-proportion
% o+ E; R2 P+ T9 w% S9 [" ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) W. d/ w6 R- \! k \. p2 c
[set global-proportion 0]7 w' _% T0 |. `" K
[let i 04 j1 |2 u5 Q7 ?; y v
let sum-money 0
+ q+ k7 `! T5 U A; W1 e7 N. ]while[ i < people]2 Y& R* j, |7 n8 X/ h: p
[. d7 h, I9 n+ D7 Y) i
if( length (item i$ J7 A% t; ?4 U) V3 b) U
[trade-record-all] of customer) > 3 )0 g& I+ _1 g1 a! ^: F) E7 p% x4 ~' `# A
[
5 a0 ^' W4 M) d7 |; ~& ?set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 z) x2 g6 m: d, L/ K]
9 y2 W5 p+ J: R( X4 o$ g: B( x4 t]
! W$ d/ D; x) P" w) ]: | w* blet j 0
" h; r* R( P' W- r% }: D! b! Klet note 0! V% L# q7 l5 N8 ^( z( c
while[ j < people]7 r6 V2 x3 W& W) m/ |: G
[
! s$ r$ k3 @; cif( length (item i$ c( f+ n4 ?' z& m8 {% t
[trade-record-all] of customer) > 3 )8 m9 C8 K9 e6 Q9 n* O+ y9 U
[
$ X H2 v" ~& v: U/ e) ^9 |5 V, Fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) A. P! a% G3 T3 T[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: a! s7 s2 r; p7 t/ A5 {[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ T( Y: o |6 x4 R* M]# t$ k5 n& u( f, f8 n- M+ k, M& C
]3 K3 _- s# _( T' O; ^, ~
set global-proportion note- O! b% x9 i, k& n' ?' l
]( n% `; j. R. P$ H" c- `
end
( N9 m) z9 i# w- n( D2 i& Z
0 Z4 \) A b6 C' o. {, nto do-trade5 ?0 q* F4 |2 c
;;这个过程实际上是给双方作出评价的过程
) k0 ]4 g6 L* b7 C/ kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 Y. C. p( j) Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% q6 Y: U5 b- ?4 ^! bset trade-record-current lput(timer) trade-record-current+ o* f6 u" I+ e8 o9 L# J# `! l
;;评价时间
7 h z" A# L ^3 l. [9 v, a$ Zask myself [' G) J2 e8 g6 H: G* `
update-local-reputation$ d5 R1 @+ N1 B5 X
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 ?+ {. M+ V* O9 ?" K]
. o8 t/ O$ M" h' E/ D7 yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' F5 }3 j! K) B9 W8 N9 I" e6 Z;;将此次交易的记录加入到trade-record-one中
9 H$ C6 K( s5 j# Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! A, f* Q Q) w3 @$ v6 X( w1 ]
let note (item 2 trade-record-current )
, X2 L* ~/ }2 P0 |set trade-record-current/ k: g9 V) _$ @6 w3 m; u6 F, K
(replace-item 2 trade-record-current (item 3 trade-record-current)). z/ \/ g" |9 Q1 J g4 S5 t
set trade-record-current
9 k m7 K- {0 w* d' W4 ~(replace-item 3 trade-record-current note); {2 y# {7 k4 S
7 f) {# i( u+ A; M$ v/ \/ F) s; g7 k: U- Z4 U5 x
ask customer [ g" x6 ^' K6 ^8 h0 ]4 e
update-local-reputation1 o# K! m. x/ W8 l
set trade-record-current
9 F# {5 l, F: z$ ~(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - r- e* r% s; b
]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& H% X1 B& T' x3 @9 u
' f# ~0 x7 g# L" t, e7 ~# }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 d: _ g5 [' l7 l( w0 W8 b;;将此次交易的记录加入到customer的trade-record-all中. Q7 \2 j" |4 P+ e9 H& ^' O
end
5 _# Z1 P8 p% J$ r9 y' a8 ^! u& [$ ~0 Y$ f$ s) P- \6 I2 a
to update-local-reputation
- v/ k( [$ B0 K, ~. r1 ]6 ~set [trade-record-one-len] of myself length [trade-record-one] of myself" E& y7 W9 v6 j! Z" I
! V8 P0 |6 M& y! I/ h; m% }! F7 U% L% M3 R& s
;;if [trade-record-one-len] of myself > 3
: I* n3 T2 Q$ m: n: yupdate-neighbor-total5 o1 V! b/ R6 J/ e0 E4 f2 w
;;更新邻居节点的数目,在此进行
; M. \( o6 ?/ j6 ?$ j; l" X' ^9 M- qlet i 3- u- D+ z: ^1 p' T, h, J! ?% R' M9 g
let sum-time 0/ A5 @ u$ ]1 R6 z* z
while[i < [trade-record-one-len] of myself]4 `1 q) W; H, k$ ~" J$ r
[+ c2 v5 x* F; s `7 J/ J
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 E! M( ]" u8 Bset i" \# I' L. G7 d0 m
( i + 1)& N# L o2 q) B2 u3 j
]1 C) N5 z1 u5 N. u8 i6 J
let j 3
1 v+ P' ]$ o- A. mlet sum-money 0
/ f+ r( E- J: r- T* v0 L# @8 qwhile[j < [trade-record-one-len] of myself]
3 N; A2 g8 y% ^) ^& Q[" B7 t9 J0 s9 P( m+ E3 O+ T" I( A
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)& d1 n/ t, b: ?/ x! J
set j* F" H0 ^% u6 \! t
( j + 1)7 N% N0 I* O0 W9 o0 ]4 R) |
]
4 z3 \/ S$ v# F7 Z3 wlet k 3
: W8 e; V3 E9 o" `let power 0
0 \6 u% o g" u" {' p- O" D6 glet local 0
* O" H& \9 j. i1 k7 ~" c% O$ xwhile [k <[trade-record-one-len] of myself]. S1 k" [& u3 b6 G
[4 B% M7 P4 T9 g
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)
7 E$ V! [: A; C8 zset k (k + 1)* G6 E q( `6 W( P
]
; n. A0 S5 k+ F7 {( h: n0 E- \- wset [local-reputation] of myself (local)
) X( N+ Y: |$ {end- Y5 G0 z, u0 x1 o3 S% N* Q
( ?: y" T4 h; S3 Fto update-neighbor-total
% Q3 f9 @) E7 o, R7 \# f" ?
& K i0 D' S2 ]3 H" I1 Tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 Y' K7 X9 ?" \/ F2 B
* |2 x% W( r6 @ |* L
3 [' D1 h }$ `1 \, x" [3 N( Bend3 \4 r/ J2 f [
) ?1 @8 W7 V3 U5 i( L0 `( Tto update-credibility-ijl 4 B% F0 w% G8 k# Z
2 l) N5 G% I9 h# ]; O+ D) W" \$ K
;;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 k1 @1 D/ ^; zlet l 08 s: f- k+ { ~9 N
while[ l < people ]
, W/ {; T+ v" M% g0 B9 e;;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 c3 L+ T) `) u1 Z[- l4 ^. H7 h4 W/ r& T1 d
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, `4 H/ B [7 M; l% \2 u0 R$ nif (trade-record-one-j-l-len > 3)
9 |1 q& r4 a# Z9 l[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! \) g! k! |" ~" x% z
let i 3
: ]7 d& b5 M7 e. t- nlet sum-time 0
& G& l2 M& g- |5 Lwhile[i < trade-record-one-len]
' U3 n# Z3 d: R$ u" A; @; ?3 e[
2 Q" z/ u2 V, a) }/ j8 h! bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 u1 w% k6 a- Z6 W, P$ g/ j( h
set i
% q& D+ Y3 e- ^* T0 a ]& G2 K( i + 1)
( z, L5 I6 K+ O! ^ |, z) h]
O+ d2 t! f1 k, N% {: ilet credibility-i-j-l 0- Y2 b+ W; V: Y
;;i评价(j对jl的评价)
7 U2 ?: j$ ?* Q7 `3 A) \* Clet j 3
# R2 i4 d, }& k" B% E9 Flet k 4+ R+ l$ D: |2 L: H% G) t. Z
while[j < trade-record-one-len]
, M/ O$ I+ Q8 L[
% l* S. G( {8 k7 }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
* I C2 p7 D# {0 z. s4 kset 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) C& \* a3 K# J( S" S) {
set j
& k# @- z' f7 E0 W4 Y4 h- t4 W( j + 1)
$ E, M2 R4 X' G; N0 A8 s6 A* l]
, Q: C- _. T- i. r7 {5 V! B% G( dset [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 ))& h4 f7 i) y0 X; {& F" z5 d5 H1 @
4 ~7 c% c7 }8 F+ A5 N$ i' a, D9 \* V- B2 y2 j' S
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% @) L$ i2 p) R. d& V;;及时更新i对l的评价质量的评价/ w Q" f9 B6 @7 }1 ^
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% U# g% M0 L, z! G. p8 o1 y/ Bset l (l + 1)
0 F/ y! u I! N5 O" b( C6 U- p% r1 @]4 K Q0 A- r2 U8 l
end" @4 C# A0 a8 s% R( K: E# t
1 K0 ]' M6 L1 F! i! N3 ] p
to update-credibility-list8 _3 }* g; ]+ M2 Z+ i* G8 S
let i 0
0 J+ i2 A* W7 t$ t J* cwhile[i < people]
# O& Z( t2 G8 }+ o4 W4 U# G) h* Z[
?" S( l! b& \; [6 Elet j 0* u' R7 G. D& X' E, Y
let note 06 i& d H" C& i
let k 00 D8 p2 Z% n {& R: }
;;计作出过评价的邻居节点的数目9 o1 w; r* W! l& d
while[j < people]
G0 _- C- n; G1 k) l4 v[1 U3 {+ D1 G" a$ A: i9 F
if (item j( [credibility] of turtle (i + 1)) != -1)$ j6 }* n: L9 N. }6 U- v; m
;;判断是否给本turtle的评价质量做出过评价的节点
" L( e& ?3 J5 M8 s[set note (note + item j ([credibility]of turtle (i + 1)))! k( p1 |* @" R" v
;;*(exp (-(people - 2)))/(people - 2))]# L" v5 g Y8 @- }# o+ H
set k (k + 1)3 C' _1 N: i1 T: q
]
! N% l: K, N6 y7 Y* Oset j (j + 1)
9 ?) q2 B- D' x M$ O% K* _8 E! D]" G# {" a, ~$ M
set note (note *(exp (- (1 / k)))/ k)4 b/ \# Q+ `6 W! J6 E
set credibility-list (replace-item i credibility-list note)
% ]- j# H2 @5 n1 ~set i (i + 1)
. O3 S9 Q |6 w" e4 \]
W5 S2 R" E- d) {# kend- X* U' s5 z/ G1 w# j. ~
6 a: N. N+ g7 p, i* e
to update-global-reputation-list
# B4 b* Z0 V: m0 Klet j 0
1 w2 y- Z) C- Z& _& ywhile[j < people]
' A3 z; [' k8 b6 `0 H[
3 d0 I; Q7 I* c7 _# ylet new 0
4 m) C. R! ~ w E* S! C;;暂存新的一个全局声誉
0 v3 E0 K0 K, S% Wlet i 0
" ~( B! Z& R. d( Y2 A. I F+ y, flet sum-money 09 _5 R# e' X+ I" H6 L
let credibility-money 0
6 I1 H6 }- L# Q; Lwhile [i < people]" m9 X; n9 m: \4 B5 B" k
[" A+ \3 Z! [' X! Q# ^9 c9 E
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' {- ^( B0 q: \1 [- L2 J* B& \/ @1 Fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); ^) ^) s; ~3 G1 m/ L( l
set i (i + 1)
. D2 Y) A F/ D7 l7 _]
0 T3 ]/ r( J! b2 |- klet k 0
; ~2 U# h e- @+ h( l. F2 \, qlet new1 03 m, f7 n% u o6 @9 y7 F0 R
while [k < people]
% Q0 k4 V* G& d8 r" `: c& s4 b/ i[0 |/ ]. ^1 g% S3 q
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)
# p- P) P* l' i& v" |, uset k (k + 1)+ F, D. C3 d( U7 U& H" z
]
2 v3 r, _3 u5 @, Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: j1 p) a" k1 l3 @! Pset global-reputation-list (replace-item j global-reputation-list new)' j0 \, x: Q+ r5 k6 ^+ N
set j (j + 1)
% E& z% o2 i9 F, D& G]
- `; J7 V' [9 N1 Z S8 aend$ H0 J; {- k+ ]& o' {7 N
; Y, ?9 I( c2 E. w# k
# ^( q1 D- l# O/ u) c: l
5 S S5 J9 _0 R0 i
to get-color$ W( n5 w* J+ N" K
0 j8 l: ~3 z& g. b$ T5 i# n
set color blue
: A% @% F# r: p$ X2 hend
' L) f5 p, G2 X4 \
3 G. D" |0 E# [8 a9 n# wto poll-class+ U# a! [5 I2 v6 }
end- M" V, F5 _4 k' v
6 c, }/ q& f( L, _to setup-plot1
6 J4 z; k; R& R/ Z" J% T6 d) ] f4 ]* W# v) c* `
set-current-plot "Trends-of-Local-reputation"
, A {4 J: v' ]" Y$ E) B
* ?7 K7 \1 k# y) D9 ]3 vset-plot-x-range 0 xmax$ E9 U! i+ d! h) N5 ?( i0 s' ~
! h' K! L/ }" _8 w5 i2 V6 _; cset-plot-y-range 0.0 ymax
6 s5 ` Y$ z4 X; g; Zend& x: s, m& P( V) M# |7 E. Z q( U
6 w; a. A$ S1 K2 H# Vto setup-plot22 M9 W. X8 m, Z8 k, [& ], l- g- ~
# ~" [& o& \. | @7 Y6 K' v. i
set-current-plot "Trends-of-global-reputation"
$ R G; h9 W/ y: Z N
7 Z! N& l: a" I8 e$ a' b' J4 cset-plot-x-range 0 xmax
' w. k& v b3 s+ l' ?, Q# s0 A6 V# B5 N% {6 x" u( @, c4 S, _
set-plot-y-range 0.0 ymax
8 D$ W. m9 e2 G( bend
* b a2 e* u5 Q+ y: V# q) `# c: ]$ O0 P8 d
to setup-plot3
* \0 I) V0 ~ D
/ ?# r i0 ]6 ~ n* i6 F; nset-current-plot "Trends-of-credibility"8 H2 A' G3 H7 v. q
! ~& ^7 p+ O0 b) C# v+ w% F; hset-plot-x-range 0 xmax. T$ `" d' _; y; M% ^, g) B$ [' o2 _
; Q$ n+ h8 j; Q Y ?set-plot-y-range 0.0 ymax
: J+ F" |! a7 L7 x7 g) \end3 J9 l L& T8 ^$ E% |
, X- ]% [$ J2 N# h/ ?/ H% o, b/ Qto do-plots
% Z4 V {8 f8 F9 N! O m& `8 ^set-current-plot "Trends-of-Local-reputation"
1 S; \1 z% {& w% @set-current-plot-pen "Honest service"" i: }; L) Q/ {
end8 Q; k8 Y2 r1 j% s" n; \
: C& f( \; H9 a `6 S[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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