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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
# R6 x R4 ~8 _. Vglobals[
/ T; b9 J2 ]( q/ Y2 J a% dxmax
4 ]" x. K0 d( \* gymax' S. ~! i' V7 [8 o4 m. i
global-reputation-list3 D0 T0 r& i y4 ?' ?* E
3 L3 i/ I/ N4 D0 Z3 H;;每一个turtle的全局声誉都存在此LIST中
5 |2 z$ @. b4 H- |credibility-list# W& n: X' W \9 w5 ^; u
;;每一个turtle的评价可信度
9 ~. a$ E8 ~* g! R) w( @) Phonest-service- q- Y6 z2 p, d( `
unhonest-service
3 l+ Q. t% F) K' ]2 E8 yoscillation k* F+ C3 j: o& C/ t ^, u" W
rand-dynamic
- P# ?$ U% j3 }8 T/ t]7 S4 h1 b$ R3 c2 A2 H/ T0 k7 p; @
8 E' D6 K5 f0 i' L* a& K
turtles-own[
0 `/ n' T8 f" X( Y7 |trade-record-all
# s4 b0 c# ?. F! U. G: T;;a list of lists,由trade-record-one组成2 T4 w: p1 t/ J
trade-record-one9 Y4 h4 T" \0 D+ P/ H$ [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 C9 s7 E0 n4 A
" Q$ ]* m2 F+ z;;[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 ]9 c9 U& v; F9 ?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]
, m" P/ F+ k# O: v& S9 v) `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list7 s4 T& J6 y9 V$ P
neighbor-total+ Z/ k0 `( K- q& E( [
;;记录该turtle的邻居节点的数目
3 e4 v0 A1 @) R9 x. Vtrade-time! c$ f% M, B5 f
;;当前发生交易的turtle的交易时间
# R1 Z5 m# y7 B8 m2 G: `appraise-give( [3 d/ k [8 q7 I2 k5 \/ j
;;当前发生交易时给出的评价( {; ?' y6 t' g5 D
appraise-receive
9 _; V" G2 m$ e+ t, D1 A f;;当前发生交易时收到的评价1 t- P( V; h) w; o2 r1 ]
appraise-time
- X# c- T8 e& }* x;;当前发生交易时的评价时间* ^9 x$ N/ ^- e) @+ N5 d
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 o' n) ?9 @7 \2 \
trade-times-total! [7 D9 [" n5 p [' ]" @( P* ?
;;与当前turtle的交易总次数
" `$ m* f5 D0 W8 `! G4 x% gtrade-money-total
5 O5 F a( x3 K. \2 u/ ~;;与当前turtle的交易总金额) d' p* G( ^6 W3 x8 K; W) j& v
local-reputation
2 N% R" v& x; h7 ]4 k( t) P- Dglobal-reputation" W" Z% v! A8 y: d
credibility
9 @: s I5 c" m' b5 A;;评价可信度,每次交易后都需要更新* j6 @1 j+ f* V! `# m. m5 b$ x
credibility-all6 p. }& ~3 ?! Q" {
;;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) O8 s( |1 R: c: V U F
3 x8 L6 L' E6 {& {3 t;;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
' s8 S" W E8 p0 _/ m9 Lcredibility-one3 v! R4 i7 K6 v+ u' l9 B2 S+ T! ]. G
;;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1 Y" B3 [: Z$ L7 Q
global-proportion
8 c+ V4 |# \9 i* {2 ]customer; J0 t& Z9 b& \3 K7 b
customer-no/ v4 W0 Z9 E! g, ^# z! E
trust-ok
1 D6 G$ A8 ~! \$ g+ B4 V# L" wtrade-record-one-len;;trade-record-one的长度
1 s& R( J4 ^' I" d]
7 e$ z5 w% I9 i5 X8 x+ `0 D3 p" W4 X* }1 E4 o
;;setup procedure# d) S1 u/ u5 ~. F" o
. N- s/ P0 \" |- C. Jto setup
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ca
& D2 ]+ m- C! x
5 Y. ]# m) Q* w8 v2 T1 P/ [4 tinitialize-settings& ~) i V$ m# w: @% ~- W! A
0 F! P) r8 n3 o! ~8 t( N1 L
crt people [setup-turtles]
+ E. f' J- O/ T7 _1 K
0 V, `# Y6 s7 p5 L7 greset-timer1 O9 E4 A8 E1 P0 w
% t& n: J; {5 h3 H6 A; |poll-class, ?6 r4 E3 L# L5 W" \
4 o$ v- [& w B$ S
setup-plots& X7 {1 `, Q% Q' o. P7 r
% _4 ?2 Q9 I+ o: ^3 ado-plots: i% a" a3 Q- }! t6 O z8 @
end
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to initialize-settings# l' [. H6 v- {9 C% p
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set global-reputation-list []3 h; V( _5 ~* n( \- F6 B! R
$ \/ m/ v, d- u9 dset credibility-list n-values people [0.5]
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2 z4 }' o1 q3 V8 o% Hset honest-service 0
- Y/ n, H ?) l2 x) k/ d% [+ U& W& L. {1 ]
set unhonest-service 0
) u: k+ z9 w" C/ S/ ]. H
4 p$ U, O& ~5 Gset oscillation 0' p* a+ o' r% b6 u _
" Z2 ?. H0 [1 N5 O
set rand-dynamic 0
( H& J/ p, n) m7 Rend5 b1 R% E* H" W' E8 ^
% ]. g, p+ [, o
to setup-turtles 2 r3 ^+ q" [ g
set shape "person"
% ]( J3 u. V) b; ?. f6 Usetxy random-xcor random-ycor: V$ u! F! X U: I" C3 V7 E, h L
set trade-record-one []: u2 t1 [# z& I' H8 \6 x) y4 V
: S/ }7 {" d& d$ d6 yset trade-record-all n-values people [(list (? + 1) 0 0)] ) X/ ]0 m- w* n5 j
+ T9 a0 l+ V; H0 R6 g) ]+ ]- z
set trade-record-current []
5 Z8 ?/ t% M3 B6 `' b, G3 Vset credibility-receive []$ f# ]: u* ^/ u. Z' M! q
set local-reputation 0.5
! o* B; I6 o5 l0 `: e( B" H* `& wset neighbor-total 0
" f: H3 D$ m$ `" u, \9 w; dset trade-times-total 06 K/ u3 G* y5 [! T
set trade-money-total 0: N% J. U. }1 z# n: T" L( O9 _0 a
set customer nobody( j4 ^8 |8 I J0 k* p9 s3 [9 ~9 E- J
set credibility-all n-values people [creat-credibility]
8 j7 T( t: i) F7 v" Nset credibility n-values people [-1]: e6 ], {9 g' N6 I1 y
get-color1 d+ Y+ e8 w# q! a1 V/ N" A
) f/ G/ }0 @3 i. U* d* k
end
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to-report creat-credibility1 m, ^" q: B* v. A W: I: p
report n-values people [0.5]' k8 Y& k- n7 A
end# \. b/ y% O: h7 d" c
4 v" z) O" E g% O/ }3 B
to setup-plots) ~1 l6 p6 n5 n1 m+ J% A
, E/ C( w) y, M) u! V% g
set xmax 30
, t) D. v3 O1 m$ ~3 @# L+ o* G8 d D4 Y# J+ x6 [
set ymax 1.09 }6 r9 r g: G6 G9 ?
/ L& E! M. J, T2 G
clear-all-plots9 _4 s) _# I! w- [, D. W
7 Y J' m a) j9 N5 V* r6 M1 N
setup-plot1. ]9 J/ g- p& A$ }
5 B$ I6 \- M* Wsetup-plot2/ r" O: s* N# x6 t8 M+ W$ z
* W$ E6 K( [1 J) m/ y: Q* ?# n l9 lsetup-plot3
3 r- q- T( w: c! uend# ]4 Q/ t7 W A5 [. a( ^4 `) }0 k9 |
7 S3 {* k' f5 D3 v/ `7 O3 F;;run time procedures
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to go3 O; f; A( y7 R# u) \
8 g* z2 T9 h" O" k. }9 n
ask turtles [do-business]
1 A3 _! Q. w9 x8 Wend6 ~; A; O/ |. n. M ^
! ?) M* ]. {( B( o' {7 V7 d# l4 _+ v
to do-business + M" ~! s3 \1 \ {7 f
x: q! Z$ K, N
?5 ?. q" P4 X Z6 G- X# S o2 zrt random 360
" B2 H% H% B0 _$ c6 q, \3 `! Z1 H/ ^3 W1 m/ I$ H% X) h
fd 1+ g( Y; i# ?7 p( N- g5 }/ X& W
' B. Q& ~5 G/ b2 O, \ifelse(other turtles-here != nobody)[
. S! c7 a, P: B7 N7 x+ [2 n: {9 E" D1 \$ S C$ s' R0 X# }# @) i4 G( c" v
set customer one-of other turtles-here
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;; set [customer] of customer myself$ s: J! j1 z: f( M4 D5 D
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set [trade-record-one] of self item (([who] of customer) - 1)! C9 p D: a- t0 B% ?7 E4 @2 X9 T
[trade-record-all]of self# Y7 ~4 x- ^' \6 {2 l# G
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* Q4 |/ h, r/ {, e, _1 j
4 }1 A2 E2 b8 D% eset [trade-record-one] of customer item (([who] of self) - 1)% j! z' G7 E- {: `6 T9 i9 Z) Y
[trade-record-all]of customer' y' G* {+ R# X% I- {
5 v6 E3 h: Y, @4 o ?set [trade-record-one-len] of self length [trade-record-one] of self
! G& G# H: k3 w: Q/ [
( o9 y/ E) g. S* j1 uset trade-record-current( list (timer) (random money-upper-limit))# ?$ m p: J" T" g6 z9 v
# [/ D) k2 U+ S: W
ask self [do-trust]) |% M: i8 S/ Q$ H! H# _
;;先求i对j的信任度
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if ([trust-ok] of self)! m8 b% N' V: r/ d+ v
;;根据i对j的信任度来决定是否与j进行交易[
( {" P8 ]* H0 v1 @. l) Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
8 C; g/ [" X3 x) a
- V! m' q' } x6 Z- J* `. o: \do-trade
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5 o- T. s8 R% r# X$ q; @9 D' U/ Pupdate-credibility-ijl
& z% k8 S+ y; t- k& V" K$ \6 I& q# B6 M3 J! J) Z" J9 I; @
update-credibility-list$ H5 @* I" A0 r8 Z& _
# e0 a" v6 r x+ F9 T9 @+ S7 s* N& |8 X6 C% B1 q9 N0 m5 [' w
update-global-reputation-list) i9 N) ~: _/ u1 N
X% }# `' `( Tpoll-class {/ c# E8 K3 \6 n6 @
/ ^9 i. R( q% N* l% U4 Kget-color, j, c# o% G7 u% k% b0 C
$ [6 G. w$ I! @) A; C' Q1 Q5 P]]% T0 |* M: D; z6 z% y# k( v; x
/ S6 W. \3 _2 e+ {;;如果所得的信任度满足条件,则进行交易
/ C* }( J% D6 U U! K7 W8 t* d& c1 V
' S! M+ ~" N+ f: t! _: l[
* t0 r+ L' z5 n
$ W0 d4 w; N: [9 j/ k0 Ort random 360+ U: A$ r1 x2 Y" g; U* p
) B( n# p* y0 h
fd 1
4 B% w' J+ _4 ~2 \ H1 J0 M! \* z& U( T7 T6 `7 ~. y2 n1 T
]# h: J& J4 h# d3 [: H
. x+ `2 S& x- o3 Z- D1 f
end
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" Q0 D ]; y, b9 Ito do-trust 5 n0 q+ w- ^5 Y6 i: {
set trust-ok False9 ]# C" Q/ ~, H. V
; v4 X6 w A. W# T4 E. l' B5 R% j/ X9 c4 w+ x7 b1 y
let max-trade-times 0! F6 _$ q+ S" a9 G7 g# @( F
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 i0 `+ H' `4 Y9 E
let max-trade-money 0
: q! k. O1 {6 u& a: f. tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( q$ D- b1 b4 D% ~2 E2 U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 }2 M; e/ \. C" g4 [
" u3 G. v8 N- s% l5 N
2 D# Y; ]. o# ?) jget-global-proportion
+ ~8 r0 E; h' k3 Qlet trust-value
0 ]' {' i' V! W3 S* glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
7 r! L, G6 S' M" E9 x+ Gif(trust-value > trade-trust-value)$ K8 p9 N0 Q8 A1 ~" @; B( X4 b Q; y
[set trust-ok true]/ Y. M8 @0 K1 U! l# L
end7 t6 x: R2 b- g8 j1 m9 ]
' s3 o2 ^ d6 o' k
to get-global-proportion, W0 a8 X- D7 F, S: B9 }. C# k
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ P" z) B7 z# _: ]/ R1 L: \" x4 |3 m% @6 `[set global-proportion 0]
/ s, ^" L7 A1 P! y[let i 0
; H$ _" t- {$ e; v( \) W/ ulet sum-money 0
! z* _7 X- m2 U/ u( _0 Awhile[ i < people]; K. O0 \ m0 V* _; J3 s
[. a/ i# p, W9 ~3 v' ?
if( length (item i, T' I+ u6 G5 M2 h
[trade-record-all] of customer) > 3 )0 D" F( X) m2 D: L: g
[
: ^* P; p3 p3 w& sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& K- M3 p/ k5 K3 V/ Z* g9 @]5 j" R; M& H: b# J! c4 a
]# ?6 p/ O3 [8 S; h* D
let j 0
# g2 Q" a( b0 ?/ Mlet note 0
( a! V/ }# ~9 ]' f* ]; dwhile[ j < people]- K6 K( P! [4 @: y
[3 Q, h6 f( p6 T6 c0 l3 d
if( length (item i
6 Z8 i2 k) s$ H( c+ b8 N: @: t[trade-record-all] of customer) > 3 )
: H) `: _, k6 C" b2 n- e[
# N& Z4 s l2 u8 u3 b% {ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; Q* J* P' ]$ _, q* F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 T( V: L$ T$ m' C2 }; ? @) J6 e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: H g8 ]* Q9 }6 j2 e$ M7 P
]/ e8 {, R: M0 m$ n
]
. ]9 A( N* N6 I8 l4 ?" x( @4 A" G) Uset global-proportion note
2 K+ K- S; N+ h; n1 w" @]. T) o+ W2 Y. U# _9 E8 Z
end
3 L6 n) r! b R0 H
# K# b1 E8 n8 z9 D: d. |* Ato do-trade
4 g7 a f" s6 t+ Q8 n- L0 a;;这个过程实际上是给双方作出评价的过程
0 Q+ ? V2 v: w. E) Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: }3 c0 b- e4 Z! f
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 y$ `" E/ l# z1 L) k, Z/ F
set trade-record-current lput(timer) trade-record-current
. y/ }/ t+ p6 I9 J. ^: @9 C;;评价时间
0 x- E0 `' p* G* Q$ N% C! hask myself [
' M' R; ~, Z4 W, Supdate-local-reputation
1 t4 W2 `3 h. uset trade-record-current lput([local-reputation] of myself) trade-record-current
: ~& Q! r2 e( K6 C]
7 n1 }% W& A1 M7 L* }9 Xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: ?: {1 e) }& p1 y0 |/ r
;;将此次交易的记录加入到trade-record-one中
' L: `( @) F; d) K; y) `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 x7 p1 L" D4 n, ^0 w9 ~; u6 a& Vlet note (item 2 trade-record-current )' E' W/ f) ~' O# j* J8 \# q, c+ c2 {
set trade-record-current3 a* S6 Z7 }2 @$ [0 @$ |
(replace-item 2 trade-record-current (item 3 trade-record-current))
, i- ^% u. _ L, X2 Eset trade-record-current& Z, O1 |3 S! q* o2 }
(replace-item 3 trade-record-current note)
& a% R# w! w3 ?- u6 e2 f) d3 q, W+ Q ]3 G# P% B0 K! ]% K5 x
! Q8 s( [$ z E& {$ r' i* P' f Qask customer [/ t; B$ K/ M6 I7 [. x; D. c3 S3 v
update-local-reputation# V% @( p1 L2 b& M
set trade-record-current
: O4 N b+ r7 l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- e7 j; ^) E% a6 e$ Y]
8 b( W6 Z# y1 W6 W2 g/ x: l$ c# \" j% i7 M- x
8 |4 Y) ?. E1 ~8 R
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. g1 A- z8 b8 o0 p0 m4 A' {4 q
5 ^; I7 [+ S# d: @1 e Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- c9 v" L- m( l) ]; x& q
;;将此次交易的记录加入到customer的trade-record-all中' z# v2 w' s! `% x& _% f
end) c1 ?8 O' `9 U; V/ q; K5 ~7 K
$ S7 |1 u: G# ^" [# l& m3 H
to update-local-reputation4 q, i) s6 V& _6 H+ c4 f2 a
set [trade-record-one-len] of myself length [trade-record-one] of myself0 _6 R' V6 Q" C' D
4 c! h- c# H( y6 r5 B# M$ i
3 ~* G8 ~5 X* M8 J
;;if [trade-record-one-len] of myself > 3 0 y: K q! q0 h) \
update-neighbor-total
* k I t, f* q! P;;更新邻居节点的数目,在此进行
* t5 n" I0 @5 X" k4 v5 I9 wlet i 36 H& d; K- A1 ]+ |# N$ _& ^
let sum-time 0
* Z. C; r* m0 ]+ g: Lwhile[i < [trade-record-one-len] of myself]
$ w: S. L e1 ^- }[
( _# P8 X2 s8 y! I- I6 F- {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 y) d, S$ g. U4 P4 l' Eset i/ N! N+ G1 j) R: F: ?# p! O: ^
( i + 1)
0 s, P& x5 Y, E2 X7 ~ g" z]
# w& F" a( ]: `let j 3& w; ?) ^( [3 a t, v" t) B
let sum-money 0- S5 {! M( P, D1 _. R# u
while[j < [trade-record-one-len] of myself]
, E, d6 g3 \: T) O/ Q1 k3 Z[
1 L1 k+ t, ~7 x, n: l( J- l: F2 vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)4 @/ r: W7 n& B/ [7 ^. b7 U
set j
1 ~; N, `* _& S- C% ^# j7 g( j + 1)8 q9 L2 |5 z& W' D- h; p5 k
]0 q6 @* o4 P; K$ k! z3 b8 X
let k 3
0 L0 Q) U% a* P7 E6 }2 jlet power 0
8 K: ]9 f; Q1 a& z! w" Vlet local 0
% S$ W1 R3 k1 Nwhile [k <[trade-record-one-len] of myself]" i4 |# j: J' z9 s D
[
: P6 Z2 q- h% oset 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) ! @6 U7 j! J" `$ {3 l0 v( J+ M
set k (k + 1)
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! u# ]0 _' W/ I, L9 g& lset [local-reputation] of myself (local)! m1 `% D. M! r$ l
end
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to update-neighbor-total- x% }! m" v5 K: V8 u5 Y; B( U( g
# z' `. Q: E1 p' J* Y% s3 K" m% M8 ]/ Z7 K
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# j$ a+ y' X$ Z# n; N+ J$ e# E
# [% q( N, B! W" W/ n, s3 q# z
+ T7 Z) }" ~, c$ t# zend$ f `9 f% g# w
' x) Y5 K* O8 Q& X+ ~1 L2 Z: ?
to update-credibility-ijl & {9 c) u' n& t, B4 k. Y
3 J; \: h4 p9 ^, A;;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。1 y' i/ B" P4 F8 _- R& a" ]( w
let l 06 N# b! R( H# d7 J. K. \) x9 F
while[ l < people ]
" T0 [1 S# @6 P( j;;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
/ d9 P$ q$ n7 c8 Q* s7 P[
7 ]6 y( I' S0 y9 o# u# g3 wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer). X! y; Q: R6 `5 `0 H0 G+ p
if (trade-record-one-j-l-len > 3)- f8 K: J: H# Y* N% a
[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* v( K" L! W Z+ x* H/ o) R
let i 3+ W! e2 @/ P! [8 Z/ J2 J3 a+ T' j
let sum-time 0
4 s b8 H* l1 Uwhile[i < trade-record-one-len]
! U. K) a/ ^4 c[5 v$ a- m% Z% A# t( \
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 ] {0 ] v0 o
set i) o7 _* [1 {% o9 {! u% e% K- Z6 y
( i + 1)
* ~; H4 H3 ~* a. W; O]
0 `# ~3 l& a! @, z1 P7 E. z mlet credibility-i-j-l 0
/ X2 @4 j* v, `;;i评价(j对jl的评价)
* Q2 o+ E: u. x4 N& [1 olet j 34 u6 a2 d s9 y% {
let k 4+ [2 J+ v) h# b" C; x
while[j < trade-record-one-len]
! a: R3 _( c6 [[
$ |& Q& @3 @4 }9 }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) z' |& w2 v* ~% d d& q0 Q0 m/ R" }- q
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 }# j) S* T }- p
set j( c& p$ }' { h) K
( j + 1)
' v5 ^$ Y q0 |" W) f/ x! O2 b]
* Z5 s7 ~) s$ iset [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 ))% s# B/ ~: f3 N" N r+ f$ L# X
( {( u2 v2 |2 K! e, C; T7 L
7 d* Y3 D1 Z, I$ G, g$ C. Plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ A2 [7 M, ?- i# E
;;及时更新i对l的评价质量的评价0 j4 T4 d; ]+ g) o3 p. E4 H
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& J" A6 m; J9 `( kset l (l + 1)' ?8 m' O) s M* m1 ^! E) f
]2 n# ]" `. `- }! P( n) a4 I
end
5 s: X( p: \% p3 c" Y
@) ~1 X+ }4 v) `1 Y4 I9 Oto update-credibility-list
5 r$ w8 s8 a) o. {+ h: }9 Qlet i 0
+ _( z) T7 l q& G& |' \" nwhile[i < people]
# U! N" a" X: x$ K& ][
( R8 _% M3 d6 N0 G+ P8 a; `let j 0
, J: Y8 t/ _/ q; X/ ?; @' o9 hlet note 04 r! d2 S( z$ p. W# e% U( w6 v' G
let k 0
/ Q. M+ i5 b5 w) w- k;;计作出过评价的邻居节点的数目. q. l9 O) m: S, x# m+ i
while[j < people]. F- d) A3 w- D0 t# U
[
2 o& C2 a8 ~% k! n' b- j7 g0 Fif (item j( [credibility] of turtle (i + 1)) != -1)
% [" S( ^+ p+ j7 @* j;;判断是否给本turtle的评价质量做出过评价的节点
9 O% s4 \# z. k+ u" N3 r[set note (note + item j ([credibility]of turtle (i + 1)))9 E/ z' y; g5 e
;;*(exp (-(people - 2)))/(people - 2))]
) i' o/ X4 U4 V! Z5 E: J+ |! g, uset k (k + 1)5 Y; L r, E& g, n. o! v3 D9 k
]
# s+ _7 u3 c" Q x; d: a2 rset j (j + 1)
4 S) Y0 h- T+ O3 k9 ^( t, Y]
) V0 s' g1 F2 C; sset note (note *(exp (- (1 / k)))/ k)6 Y. e, K* C+ L1 b; u- D
set credibility-list (replace-item i credibility-list note)
9 q' z( {& s0 t' f- Y0 Z( Hset i (i + 1)
+ O$ P/ Y5 ~) { `. `( E. @]
* S8 X U4 n( P6 ~+ ?end
8 f- t$ J9 b i+ f O, i$ h) H) X9 I. ~3 y+ T3 P
to update-global-reputation-list
& v, L' M% M' i- M2 slet j 0
0 L0 J( |: y* ~# ~& Cwhile[j < people]
8 G* {+ D- {* |; b E[4 ~! ?5 l# w. ]& S) F
let new 0
2 a: ?4 u- U( N' J% L;;暂存新的一个全局声誉
9 c% \" I3 _3 P3 n" z! zlet i 0
' w# }- |/ J8 o! B# `7 _, }3 zlet sum-money 0
0 y2 S4 s: Q% D2 clet credibility-money 0
+ G; E7 r9 g# awhile [i < people]
9 t( S3 W$ o# Z! y+ m3 }[
F' G5 Q/ q/ O+ g; \& cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
N- `+ K4 {) q! x; [" J+ [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! y4 s' Q6 F. P1 ]set i (i + 1) I* c6 d# I6 e0 r' |
]- ~/ p# n$ B3 y- K6 L/ f5 I% J: Y( q% f
let k 0
/ _+ U, C; m7 z4 q( Z `let new1 0) D4 W$ I* a9 |" H
while [k < people]
( X* f0 t2 { w, k( y6 W[
8 s/ s5 \4 ?) ~! C/ j% C4 s9 t- mset 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). }7 h5 L: T- R
set k (k + 1)* e6 T$ N1 \! ?$ x& ?
]
9 b4 e2 F6 K; l3 Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& P" Q6 ?8 w1 Xset global-reputation-list (replace-item j global-reputation-list new)
/ b% ]* ~7 J2 q5 O) _0 j Nset j (j + 1)
# b* A- }# |) l- K: @# l]* ?. ?8 o* {2 F: g' A* c( r7 V
end
# t6 }3 X d! i+ y; C. e, K4 j) n7 O2 I9 E$ s
$ l/ M/ b5 J3 ]1 O! y, s% v
% |2 p& b) F* U" O7 Q Q. ^+ }, n- C
to get-color& o9 F4 V* |8 G" I" k0 v9 A0 p
' H1 D: A% J' u4 ^, xset color blue
2 _ ?3 X# Q" kend4 E; v% W9 t* J5 \ s3 _' z# f
5 F# ?& U! ^+ F( }8 g
to poll-class: ^7 @7 y6 C. X
end, g/ U3 Z+ Q \6 V G R- p4 z
$ X. H) H9 [6 l# y" bto setup-plot1
; x# F4 l3 \0 W* @
' C8 T/ d0 p- Tset-current-plot "Trends-of-Local-reputation"- I' }9 L1 M( I% h& B' I
) [. D ?6 p( R5 R% |- G0 V, kset-plot-x-range 0 xmax, E& f( U& S, k3 q5 G# k
& L. R/ g3 G0 U0 K7 \1 dset-plot-y-range 0.0 ymax+ q0 |0 a: h; w: l
end
$ S# r' m& z' a# s
. Z9 o# l8 |1 Eto setup-plot2
% O* I! l; R$ g: u# P
% _8 R. U% e$ _: n6 Fset-current-plot "Trends-of-global-reputation"+ T+ w' M+ Z+ I3 N. j
+ q! ]3 ?( f. ^) S3 m, A! s. M
set-plot-x-range 0 xmax
$ O- U0 T9 S/ [3 A
# q8 r; R' T! @' e% Nset-plot-y-range 0.0 ymax. X4 A9 K: ?: ^
end I' k4 i) g, c$ x1 A% ?
" { |( R6 u8 D' |, Tto setup-plot3
_3 w! e/ h( g' Y1 d
0 k4 t" ]$ t* Y- `; jset-current-plot "Trends-of-credibility"! a6 {7 F0 k( C0 y5 g/ k& q" j
# N. j0 X9 X( ^- v$ P2 u
set-plot-x-range 0 xmax6 I. ^) P/ ~4 s$ G+ s- ^2 A
0 D" A1 o7 h$ U% S8 A
set-plot-y-range 0.0 ymax
8 [* v5 p3 l5 e' P# s3 [7 D9 Uend4 ]2 c# ^& O! R! A; l/ F6 h
: L# b: p) ^4 x, \; yto do-plots
7 Z0 q; }% E; [) Tset-current-plot "Trends-of-Local-reputation"* [9 ?+ @% Z0 z
set-current-plot-pen "Honest service"+ Z8 U7 l7 J0 f- |' H% M8 m
end
: v! F& |+ |; w/ U7 a- N; Z1 b3 t
# E! f# D. D+ [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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