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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
* B; j3 ^ F+ m' g5 O2 dglobals[7 b2 D- ^0 g+ v1 f* J5 u
xmax
9 }4 h' C/ G/ E0 n( o$ f6 o5 m8 {ymax
4 o) e& h6 X" T$ Z# p. e' tglobal-reputation-list6 m2 k# k( Y1 k7 }$ _
4 I' h# N0 ]1 F. R
;;每一个turtle的全局声誉都存在此LIST中
, }9 f7 o- y+ a& F7 w% Hcredibility-list- i5 k& [9 j: G, Y2 a
;;每一个turtle的评价可信度
$ V" d* Y; r) W! }. n7 g; \honest-service: q' K! s, n7 u8 |& w, T
unhonest-service
0 R$ \) V5 y: Z; W: W, P9 Noscillation
4 K. j; {3 c8 J" y! \: hrand-dynamic! I1 l2 ^0 L; V/ R7 y" K
]* B* W% i8 ^) W) i) R
1 v& y+ z8 @$ R. D* d Aturtles-own[
c! d" I o" j7 r" V. g: Mtrade-record-all" v1 f) b; T' n0 W% P' a( |
;;a list of lists,由trade-record-one组成, l/ I, L8 F+ W+ R, a
trade-record-one( j) S; x3 W; ~9 S' H' 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
: m1 P/ \, U b! V( h" T8 |- l% I/ z/ S% i6 @) E. l6 o2 j& 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]]
3 O1 S' d/ @4 D5 }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]
& Q+ A% X7 |1 Z2 a0 n& K* mcredibility-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
* V" G4 m5 V3 C8 a) v [# s$ Hneighbor-total
4 p: r% Y7 l- @* l;;记录该turtle的邻居节点的数目
& U. Q( {4 @4 K1 G# x# Ktrade-time
8 T9 ^ @7 }& T" G;;当前发生交易的turtle的交易时间; H( O8 _% q+ D- [' c
appraise-give
% K% U; F" l( J8 [$ `( g;;当前发生交易时给出的评价& b( E% N4 o$ Q- x6 k! W+ V$ a
appraise-receive
- V3 ? ]6 [, T0 `1 o9 g0 V3 C& O' x;;当前发生交易时收到的评价4 L- _ x/ n) T) z+ G" [
appraise-time2 b2 Z$ Q1 ^9 O* |! N
;;当前发生交易时的评价时间8 z8 x$ G! C# x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 [7 T! s% Z5 N$ l. B- btrade-times-total
4 w U& d6 K( d3 c8 S- O# }8 t;;与当前turtle的交易总次数
, m ?9 I( A% k2 I/ a5 J Ytrade-money-total4 a- {6 _$ c8 ~: \) ~ w
;;与当前turtle的交易总金额' o5 G9 v% a0 v- S5 G T
local-reputation2 g. i6 u0 C: e
global-reputation2 B7 {3 G( f4 `5 F: Q
credibility
( v4 O) t8 Y1 D$ Z) v3 e+ b% G;;评价可信度,每次交易后都需要更新
/ ?, ]/ [7 _, \, Rcredibility-all
! Q" i! D- p$ X;;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
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;;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0.55 Q$ a% v) ]2 D; A5 K2 `4 N( h
credibility-one
, \( I. i' i3 r0 i% x;;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* h- `, a; n: k6 f8 Iglobal-proportion
; m V9 _9 W0 b' h$ g! _5 h& l* lcustomer' j0 ]" V7 U. O. {
customer-no7 ] z; B) K" s
trust-ok9 Z& F# r Z0 i) L2 c3 _# i
trade-record-one-len;;trade-record-one的长度
M' N3 T2 N. m/ p( i]
4 Z' U/ l& q% [* O) y: N; e5 ~. L( S" O0 Z# @! V" A; q
;;setup procedure1 {' ?% M# L! g3 K
+ W! y6 e# x4 R" i& f+ Uto setup0 e+ @- c/ }6 }2 S! V
) k+ Y8 d, s( S' nca
& d/ _1 c; B# f, L; M
1 h; E/ s9 V1 M/ c+ A# finitialize-settings
% _) K" J( o& m7 r3 R, q4 H& a3 g6 E2 L- V8 w1 q: _
crt people [setup-turtles]
|# l9 _. F$ O0 Z4 v5 x& u% v" g1 v; O/ p" _
reset-timer( A; }: ]3 Q4 K* M) a
% p- B$ G8 k8 ?0 J3 o$ Y
poll-class& A( {; D$ Q" H, ~
; S8 ]/ y) |; E# U% d5 `
setup-plots
1 R1 z/ W! h( u5 k( c. H8 r+ p4 Z8 k# g' W, D
do-plots% D) r3 w2 S9 t6 A- k$ o
end% W* {* x C* f
( L. T* k# N2 A9 P5 e, l
to initialize-settings
G: o* V3 R# D/ }8 E' I
4 V o! r3 E6 d- ]2 o5 R" gset global-reputation-list []
( C' z; ^/ h1 y! V; V% M% E
% ^% s+ O1 o; Pset credibility-list n-values people [0.5]
4 P& r4 |0 v' Y0 ?. A0 D* W- i
1 |' t _! i. u7 n1 |set honest-service 0& B" \! Q* x- E1 b4 b/ r+ O
+ B7 |; V9 G, tset unhonest-service 0- D# H, m7 M1 ^6 t* n; R/ ]- w
2 x8 _, }4 l) {- {3 @/ A2 Pset oscillation 0
" T1 ^' q1 r5 `% s" G2 v1 ^, Q0 X2 e$ J$ q U# Q9 E$ r
set rand-dynamic 0
, F6 d- }) |& h$ y" F9 eend/ H6 W$ i- H+ x% k8 T1 I$ y. s Q
$ t" R9 i$ o7 Y) m( t
to setup-turtles 3 T5 }- U- e/ S- |
set shape "person"6 A% I* b. o2 n3 X2 Y: o
setxy random-xcor random-ycor
1 g* z4 F! r: r p( f8 Rset trade-record-one []
2 f {; P3 X! `1 S1 H) t1 d. H4 S U7 @
set trade-record-all n-values people [(list (? + 1) 0 0)] 3 W! Y- ` a+ X* ]: J( ]5 [
; P A1 |/ I% ?6 `% T
set trade-record-current []
( E, z) @1 Y3 v, Dset credibility-receive []$ Z/ Q ]) q- _" {5 G9 u
set local-reputation 0.5
7 R" j" x |6 x- jset neighbor-total 0
! g3 a+ v6 @* \, r* Vset trade-times-total 07 B$ V) V8 Z6 q, d. e
set trade-money-total 0. z3 }7 H) E9 `1 \+ N
set customer nobody/ Z% r c5 W' T5 }4 J
set credibility-all n-values people [creat-credibility]
$ O8 i* a. a8 ?set credibility n-values people [-1]. D# ]9 J# w7 Z) y' E7 ?6 n( _
get-color
+ J' L* g" }- Z9 X% l
: x* N1 ?3 D- @. G) W" u1 zend
5 S& R; t6 F5 m: Y
9 j9 [8 l, W: Tto-report creat-credibility$ D0 `+ j+ V/ L; c
report n-values people [0.5]1 k+ @+ K4 d' i- j: d
end% C- b Q" ~: J: V f# z2 \
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to setup-plots
% b) E& E' }! A. V$ u: M9 r8 B' S' K4 J+ k" I5 ~; d+ S2 f
set xmax 30
& r0 C1 C. r0 o% _1 d$ v2 ^
. x! [" Q& |- Y+ h/ b0 eset ymax 1.0
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clear-all-plots8 ^) B$ L, V" g# c* q. ~
' _4 e" M" X' O( g7 _setup-plot1" I5 I7 [# F( j" u& S+ v5 K
+ s( O: w+ F" i8 \
setup-plot2* _' D9 \' r& _9 }" r( b
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setup-plot3$ S6 |) z/ t6 h$ t, ]5 A* W
end G4 E8 F; a/ [; | F! I( u, b) I
6 {' J3 X+ K d# u
;;run time procedures
w1 o2 p' L" U3 _8 L
' K" F( Q, J3 h, L& lto go; ~8 v% r) Y- P; p4 j7 w8 @; _, r
6 V! a9 a% w8 ~, t2 }# o$ H. w
ask turtles [do-business]: a$ l m. x' n. f
end4 s3 v9 O" w$ d4 z z
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to do-business ! M0 h) @0 e6 i
& a6 p& K2 Z5 N g6 M3 w: }
1 \: w$ k7 S- N9 E, n/ Grt random 360
( F8 q2 w! a7 ?- |, ?/ j5 s, F# }. o5 n- H& k8 L% `
fd 1
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ifelse(other turtles-here != nobody)[' X' d6 K, A6 }# M1 R2 \1 j Q+ G9 W
6 p" |! X1 T: Y5 T7 ?
set customer one-of other turtles-here% @- G7 n' |& B/ D3 u! q1 r7 Q
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;; set [customer] of customer myself }+ n$ A, r6 I2 M" Y+ x1 p
9 E1 Z# @2 P* N3 [; c' L# X7 tset [trade-record-one] of self item (([who] of customer) - 1)
C% t* u0 X9 t4 ^' n[trade-record-all]of self
2 T' I1 M+ y; b. K4 K/ Q1 `9 U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 z e, _- l" ], q v! a( a1 y' k/ R) ?; q
set [trade-record-one] of customer item (([who] of self) - 1)
. W8 |+ S$ q8 B5 K' {$ p8 r$ ^' T[trade-record-all]of customer
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$ L4 g& D; z6 e9 X+ s% ?9 Pset [trade-record-one-len] of self length [trade-record-one] of self
) m/ D2 m( e F9 e U3 U* J3 O8 @/ e& B. `" F
set trade-record-current( list (timer) (random money-upper-limit))
d% C1 ~) s0 C( R+ K& n; v# X0 q' |5 P5 X6 ?
ask self [do-trust]+ T# j% |( O1 X
;;先求i对j的信任度5 I. H; E1 ]2 n& c. k
' ^; b% |. J' o, m1 Z% q3 qif ([trust-ok] of self)
$ V+ z: i% F- ?8 n;;根据i对j的信任度来决定是否与j进行交易[
3 m. u7 G" ^+ ?4 w/ K5 O: ], M$ W7 o; vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[% V, w: _; k8 a9 S1 x9 \$ V
7 U' C. x8 r" h' }8 I8 ddo-trade% [, L* h+ D" _5 Q0 V0 Z
. f! F" P1 T2 @% Z0 X0 a8 ^
update-credibility-ijl
% P% Y" [1 L3 b
) N6 f: V! ~1 w' s( aupdate-credibility-list
/ _ s7 w, T3 {; ]' Q. [' y Q1 i/ ?7 g" Q* }: ?9 e
# N3 j; Z$ e8 c2 s' `
update-global-reputation-list9 q& h4 s* J$ e+ h
' z% x, J/ t2 L5 a! t3 x
poll-class- G6 V H5 }) F3 r( `! H3 Y
5 \9 @5 f G: K, p1 uget-color* t4 l3 E2 I, m4 H! ?
. j2 s2 x) W$ i
]]5 }% Z+ s* V5 I" ^
S$ x3 A4 N# w N
;;如果所得的信任度满足条件,则进行交易4 z( A. K1 f9 Q+ e
3 k) x) u% R" m& n) _, I
[
6 f( F( R+ s, q# N5 I0 y. e1 v& U6 |- W! x2 b
rt random 360
+ B q- S. R8 `1 V9 [8 i5 Y. z. c' r2 _8 i! Y4 U: H
fd 1
. _+ w) ~8 L! X+ t* C
6 h2 t8 @9 k' z) K9 U9 F- r]
! m9 f! A8 ?& t$ O8 M2 Q! f7 @( }. a8 Y; h
end
7 i" e" a7 i" A5 `
) n0 N4 Z$ D, i$ l" D& W9 Y pto do-trust 7 r0 J/ F2 t. X' a7 v6 P% x
set trust-ok False
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8 E- _4 j9 s. g
let max-trade-times 0
5 `1 V! l! f" B0 N+ yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] G% c# O& w% J) q, K! d
let max-trade-money 08 I2 h0 A" I; q" x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 s4 c2 p8 T+ n: F& N
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* k6 _: T5 f4 F; j. R) q8 v4 o- c! `1 y$ V; s
4 K/ T0 \1 L- s cget-global-proportion8 ^! I7 G8 [( H; _, c( a/ ~% r
let trust-value# @: T3 u. {/ S+ |8 ~, a8 }
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" O4 ^0 H( t& l
if(trust-value > trade-trust-value)( X8 x- q! Y9 n8 E+ l" x
[set trust-ok true]" m) E& ]0 b% N J5 z2 ^, Y
end
# G1 p! A! ?3 U+ E- U
- M! K6 ~* J; J3 ~! } U `( gto get-global-proportion: j4 s8 o% T6 d: J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! G: ]( w: B( K: Q& M
[set global-proportion 0]
3 X d! x6 Z- ?; r2 n[let i 0
6 u: ?& j: O0 R3 y+ H, Blet sum-money 07 e, ]# `$ N- s4 x
while[ i < people]
, y2 x- p7 S5 i6 M% O9 Q$ G' u# Y[
3 ~9 c2 A4 ^- i& Kif( length (item i
% Y$ @9 n3 p6 C" D# N[trade-record-all] of customer) > 3 )3 j) ]" o: T7 Q% K, L+ C/ E
[% b9 V2 m0 X3 t* }8 G' |
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 e; _6 n- k3 B]
) m# D( `) J1 ?" m. K t, D]; f' n: a Q9 d" [
let j 0
& G* y3 { V$ N' D- hlet note 0% }& q, x, m2 ?
while[ j < people] m; U. [1 I5 {3 r: W2 U2 w
[+ q* V; m2 B8 Q) X" {9 {
if( length (item i
! Y2 h' S4 Y. b0 N5 D# v# E[trade-record-all] of customer) > 3 )& V2 L! B! e* ~3 F
[
" P3 _9 L3 e4 ~! [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 E8 G4 Q p, S% N( B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 O9 P' L" ~0 G6 M0 V9 @5 y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ K7 i9 {8 k6 J
]
% G) r" b9 B" H2 L) T+ f]
/ |% F, c1 y. hset global-proportion note) g; V0 g) q) C# b& r
]' G# }9 u' i+ M, w3 n# N# @
end ]. g+ Y( c$ H" a( H
2 D1 P8 M7 e& R }, e. Z' Ato do-trade& A5 s; E0 b, Y; A# L4 W
;;这个过程实际上是给双方作出评价的过程9 q0 [% w6 m C" }- ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) p# J: q5 m4 k9 V$ B: C: m: T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 c6 Q4 f( Z6 x) b( lset trade-record-current lput(timer) trade-record-current6 h, n2 G/ B: K, s
;;评价时间' a% I: P2 b, N( x# G a: s
ask myself [
- A J# U9 _! ]( bupdate-local-reputation/ H# d: H6 B3 t
set trade-record-current lput([local-reputation] of myself) trade-record-current
4 p" Z, E9 U2 d2 ]! j]
1 {) ~: o+ d/ S0 C3 W; |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( e2 j/ [9 Y4 Z5 E
;;将此次交易的记录加入到trade-record-one中
# p& `3 f0 ^3 q3 o b6 Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% r6 Z: s0 ]) n" L
let note (item 2 trade-record-current )
* C1 c# t/ ?" ]set trade-record-current
$ c% Y) ^$ I7 a% M7 p(replace-item 2 trade-record-current (item 3 trade-record-current))
$ X( Q3 k, V& {% w) S, qset trade-record-current1 x; r0 w. s, [3 w. T: c+ s9 G
(replace-item 3 trade-record-current note)
, h; X% U- Y9 w6 {( s+ f0 Z4 v" V: b4 z
/ M5 w) p. l: \, \
ask customer [( d0 }' r; G/ B" C+ w* }- f
update-local-reputation+ E0 ]( b+ ?; q
set trade-record-current& }, `! V3 N: \3 Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% ?& D" q$ ] k) ^]
9 w) q. E, ~0 K9 C6 h' e5 t
% T" w3 W6 J9 Z7 j+ ]/ {
/ i; b, c! b( [: F0 ^ Fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) v0 c: g, [- h7 R* R6 W: y
, j+ B( y4 l) I1 Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& x3 h) c3 m/ F
;;将此次交易的记录加入到customer的trade-record-all中
+ g( c g `9 q( ^2 T& Nend' p) T* e. F" \* L( [
/ k: ]! {1 ~9 r Z( l+ l# Eto update-local-reputation1 W7 R5 f( P6 s) a) T
set [trade-record-one-len] of myself length [trade-record-one] of myself
4 x" u! T$ o8 y- l* v8 N3 \2 H! E: G, `- k
( m$ S( l2 m$ V
;;if [trade-record-one-len] of myself > 3 ) J" |& y# R! N9 _/ o0 H
update-neighbor-total
5 R& e1 _2 n/ a;;更新邻居节点的数目,在此进行
. m# p: D8 F5 S" zlet i 36 Y0 M: l6 ]' U/ t
let sum-time 0( A2 V! b' L; @
while[i < [trade-record-one-len] of myself]- H7 a5 G& {0 E, j% z% ~6 W0 V
[. \- ~- v! c6 M8 \6 b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ }& \' A" l$ Aset i
( I+ _: l6 B) ^$ Q% ]: r( i + 1)
1 e0 ]# _7 H9 Z6 h]
: p2 [4 Q0 ]# O! N# ^/ tlet j 3
4 X4 {6 t N5 {1 Ylet sum-money 0
# l {+ O( r: cwhile[j < [trade-record-one-len] of myself]
3 O2 l% i; m: {% t" c- ]# t[
5 k/ [- m% I2 o2 F; ~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)" X7 F5 x6 C5 J* ~. s
set j: r7 A8 O- b- ^, [1 }5 O9 Y
( j + 1)) R( u, s% K& ^" A# |
]* D# J: C8 `5 k f9 R5 n
let k 3
: G, M$ r4 G! [) u4 |, qlet power 0& K6 T8 m2 x8 N% N: L8 |2 D' }$ B
let local 0
+ l7 Q T" u: j. e+ @while [k <[trade-record-one-len] of myself]
; n- P7 k3 s2 R1 s) [[
% Q# r0 H0 ~4 @& ?& b: Z) O3 Hset 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) & Z3 R+ @: Q* b) P0 `4 z
set k (k + 1)
0 T8 g0 S4 {. L- h8 [, K]
# v2 |; G: p2 N7 cset [local-reputation] of myself (local)7 B6 ^2 u% E5 h# A% Q
end" I* l, A x; o3 c: W- I" c
* w7 a6 W4 k3 Z7 Y; Y, d5 f' U1 k
to update-neighbor-total
# G" x; H5 y# t q3 `# J* H# X9 m+ X. [
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 P5 ?! c( H$ H$ M
6 u& M# J+ F( _8 S- Z7 U% W' J+ t6 q. _
end
2 c. z# U7 q1 k2 `* o
5 O6 O" e9 r/ D0 J" G3 `to update-credibility-ijl
: [% J* j/ O% U+ S6 T$ R2 Q3 B0 V& y! C7 C$ H8 p" u( 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。
. G$ x) }+ F* m6 r: c8 N9 g+ Plet l 0
- }/ @8 H' e2 u( n* S4 Q+ ywhile[ l < people ]& s) ~; @' N3 D( m6 J+ L' B3 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
3 y8 ^2 Z- R( Q W[% z. d K: B6 Z& \; o
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 ?* ^) W7 U5 ^8 r+ R8 n% C& Q4 Dif (trade-record-one-j-l-len > 3)" J) ~5 A* _9 `( m0 i8 ?. Q
[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- h7 Z8 E1 X% E# H5 d
let i 30 F6 l; M/ c9 u% @% S$ M
let sum-time 09 d& ?# x: f6 v0 ~1 I& {% w' n5 S
while[i < trade-record-one-len]
2 C$ w/ g0 J6 l3 p, A- T[9 q$ t. I! d, Z* {4 S; w0 @& O) _/ Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ x4 R# Q: _' @; }% A
set i
, H) T3 K- D& o( ^8 n3 N+ \( i + 1)6 p- w& f" Z; K5 N7 x: x
]
3 ?* ~% B0 G. e3 o: ~3 w5 Ylet credibility-i-j-l 0) \; w4 V: w4 `# M0 f
;;i评价(j对jl的评价)
( _/ \, c" e$ ?& r' s6 Mlet j 3
b5 ^: N3 ?2 h. Plet k 48 A. C' @: c- \2 t1 r, b* N
while[j < trade-record-one-len]
, z$ |% T6 g9 i; s- s/ p8 P( r[
* ] ?2 G# R/ ^! y, Vwhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
" p: Q* G: j; j& |set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)% ^0 U! z5 \) Q$ {0 Y
set j
8 B2 `4 W+ H% M! I! L0 h( j + 1)6 c7 E0 O7 ^1 u) `" e: o
]
8 P) a/ `' f1 a2 S- aset [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 ))2 e$ B) y0 ?# }: i# L) k+ H0 H5 r- L
1 b3 a( F% |1 y
) P8 o$ c* f5 H% s8 \9 Zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 q' ~* ?* h/ N! D) ~' K
;;及时更新i对l的评价质量的评价) u A, [1 Z; y* @4 c$ i- O3 N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: ]- G1 \6 G! x/ C, fset l (l + 1)
- W6 Z! y6 S7 `8 q# ]3 U/ H]# E+ q# g7 }, E4 T, w
end) I1 u9 X* |# K, z& J- ]3 d2 t% E
$ P+ F" g% v$ V1 J2 i# y1 ~$ L
to update-credibility-list: g7 O9 a1 C7 c- F) A9 I: _4 P
let i 0' P2 ]7 F6 t* S0 i: Q3 j
while[i < people]
* v- p/ Z* W2 W% K: W& r[2 S% b$ s/ ]' ?) J, z+ Y0 j6 {
let j 0
+ ~- R# y8 n5 p& O5 Dlet note 0+ L4 S2 u/ |% @; s7 L6 G
let k 04 j& ~, @. S. x7 L' |
;;计作出过评价的邻居节点的数目1 D) O! W$ u* l5 t
while[j < people]
. E4 x: V8 Z W1 {[6 O! X8 `! [) J5 }
if (item j( [credibility] of turtle (i + 1)) != -1)6 M: R* Y$ e" N( S
;;判断是否给本turtle的评价质量做出过评价的节点: C- b2 b$ v( r9 z4 p; W
[set note (note + item j ([credibility]of turtle (i + 1)))
) [) b, b" B3 q! a: p* Y0 \;;*(exp (-(people - 2)))/(people - 2))]3 E X$ K0 Y0 s7 L( \! n8 v
set k (k + 1)/ G6 `" m& `* z1 N
]& Q) A# O9 z, F* n: _, y: W6 ?
set j (j + 1)
: l; k' `7 g8 H( K2 j8 y# M! d]
$ v$ y# X$ ] T5 H Mset note (note *(exp (- (1 / k)))/ k)$ @8 D7 J$ x: R% ~7 i
set credibility-list (replace-item i credibility-list note)
8 `! W$ z* B! R5 q; lset i (i + 1)8 C5 B4 X: r; j1 N% U
]
1 a }4 g# X E8 L5 q' w$ e/ U( S2 wend* U; W& ^1 A% T7 U
8 F2 u, N1 O' Z6 R. x
to update-global-reputation-list: ?% }5 ^$ P! b) K" ]" ?. D7 A
let j 01 x: ?- V1 f& N! O: u5 W {
while[j < people]
; K' x% M6 i7 V/ n9 |[
6 H$ V# P$ O8 E; _; Z0 Dlet new 0
; X0 w; f4 Q: G$ B3 ^) `;;暂存新的一个全局声誉) m3 _" S$ {6 g; ?
let i 0- R% |: w2 ~& w- g2 x
let sum-money 0
$ L2 j1 s9 C" d% N& E9 B9 M2 ~let credibility-money 0) G- c3 H: }2 v, ]5 r
while [i < people] J) b% \5 ~6 J8 v+ Q- M. F
[
1 N: ]0 Z+ P, \' @4 M1 qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), |2 Z! s9 `1 L( k/ D; F8 ?& D9 q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). `2 K3 z' q v. V4 o8 d
set i (i + 1)0 u' p6 T) B$ s( ^( C/ z% F
]
& j! _2 |/ w) u# ]5 T7 n' wlet k 0- }4 n7 S' m5 ]% I8 t
let new1 0
1 M+ Q" L9 r5 h$ Y8 c7 L5 a- ?/ e( m9 u# bwhile [k < people]
5 ^/ Y3 U& V' [+ _6 c[* B' u8 J* s4 n/ ?. [3 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); i* Q& {6 W" K# M6 w6 ^
set k (k + 1)9 a2 q* U# ?+ n* b' Z% @( a5 Y8 r
]& S, Q2 ~0 c' `! {
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 j, x) R9 C: S0 P- rset global-reputation-list (replace-item j global-reputation-list new)
, K }" Y2 t8 m8 \/ G9 B$ q# w/ tset j (j + 1)' L1 ] H2 c1 m+ }( q( v8 f1 i
]
) r! T& m9 s3 } Oend
q& C5 K5 S c' g0 s: E9 U5 Z& H7 F/ r. k
& S b) ]& o5 S) o3 F
" d ]: e+ p' M& c
to get-color8 f% x8 y% m4 M0 a3 y
9 i" H) c2 g+ _8 X
set color blue
5 c P- q0 V. B7 W* v p, X4 F/ [end
; ?; z3 Q9 `& R/ S+ r: o: c1 H3 E l: ]. ]
to poll-class6 v- e& ^5 x( a" v/ J
end
4 X. @5 x, l1 w! `5 ~, f9 j7 S! k# i/ F, Z- U4 e
to setup-plot1. l6 F' p) s2 A' ~8 ?
/ A \$ I ^% Q4 D
set-current-plot "Trends-of-Local-reputation"2 q7 p. q9 _! Z9 c
+ r; O* e! r4 G( bset-plot-x-range 0 xmax' A5 C5 J8 n5 _6 s( U
% S* b& a8 a& O3 p8 V0 Gset-plot-y-range 0.0 ymax
" T# o# [- A" F Y2 yend
( T# O2 r' C; ~! p; t8 V0 x; |9 v" ~5 i* t& v7 b2 C5 n8 r
to setup-plot2
" r% b( B$ V6 N$ ~. r+ K O3 p/ Q1 ]+ F8 r3 A0 S) y
set-current-plot "Trends-of-global-reputation"
5 e& U3 e, x1 H( W' ~+ \3 Y& F
0 b( x( q; ~8 {! D; Kset-plot-x-range 0 xmax
8 O! J3 f! t* D* J# |$ g' X! J/ F6 D" H' m. J
set-plot-y-range 0.0 ymax
1 S) i9 q* N* Z/ o1 R- e- `end$ y. ]9 d' ]0 m" p
; @9 E9 v# d, m3 M* c. M+ f( A
to setup-plot3
! ^) o: v* j; [, n0 ~+ m' d3 U- j
. @6 O6 j2 R3 u8 Iset-current-plot "Trends-of-credibility"% w( S8 r, v# G& K
# k! K0 n5 E9 T! V; Fset-plot-x-range 0 xmax
' _7 k3 S# f+ ^1 j' p1 ~5 g# A. Y/ k% S8 |0 R8 Y, X
set-plot-y-range 0.0 ymax
! c) j1 l1 J; [" w2 A- _! O( Kend
2 |+ h7 m _6 J( ?
, |7 v" C) c0 G& F5 x' rto do-plots# l+ u5 O& ^0 l! [0 @
set-current-plot "Trends-of-Local-reputation"$ B$ p" e* s. z0 Z
set-current-plot-pen "Honest service"3 T, H y! Z' t7 i9 O# R, r; Y
end. P ]1 B8 e4 e' w( f8 ^. q, J
8 b1 J( g# [( `6 G. l# a- P9 E
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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