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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
' o7 _- `9 f" a6 U4 d# Gglobals[6 Q. X! ]! ^: Z
xmax
4 y8 s% x" n5 U+ ]' q: R) fymax
. F# I2 k" H x( ^5 G/ yglobal-reputation-list
! s8 J c; \% e
6 b% x9 P0 d' u( S6 }7 {# Z;;每一个turtle的全局声誉都存在此LIST中* P6 n& _. B; k9 I3 o. k
credibility-list
9 H: h4 @- y O2 e;;每一个turtle的评价可信度+ b, F7 U/ l$ y: X
honest-service
* n Z8 P2 j! P4 ^6 J' q _: runhonest-service
. A9 h: J, g* A& v( Zoscillation' _' s6 ~6 E( j4 R, M. R( d
rand-dynamic
# _) X2 ?3 [) W6 i# i/ \" ]4 b]$ o V4 u! ?* P& c2 K7 p: I7 j: U
/ T7 G! X* ]9 l
turtles-own[
1 M4 ?: b, F3 J6 N9 t/ A Y% V5 `trade-record-all
2 D* L; _1 |$ J* u5 ~# R% Y$ n;;a list of lists,由trade-record-one组成
1 l8 K/ _# [5 z2 b$ xtrade-record-one5 o, H6 |; i' g$ s% H( Q4 D
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录3 {$ j) y6 V% r/ `4 o1 F
# y( I& q H* C) S/ _;;[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 R+ R* O& Z& a: U) f: U/ f2 ~
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]6 J+ m7 X7 E8 {
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list
! a1 h5 l9 p/ fneighbor-total9 V0 z- e8 U' T" F7 h
;;记录该turtle的邻居节点的数目4 k) m- l; O' V* u) _! K; i: B
trade-time
* o/ }/ ?: G, r+ c9 ]5 M0 K8 ^;;当前发生交易的turtle的交易时间$ ?& J8 f+ `0 A; W
appraise-give
# H1 Z( \2 h+ h" V) v6 T/ \;;当前发生交易时给出的评价1 Z' p6 G; W& K( `
appraise-receive0 U* h5 X+ {1 _- v3 C9 r
;;当前发生交易时收到的评价
- T2 U7 U( c! q+ ^appraise-time$ w7 s* ?. Q4 p, y- ~. @4 N
;;当前发生交易时的评价时间/ Y6 t% m' l# W+ q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 Y. x9 T8 z* e( h' atrade-times-total8 s; W) T1 w0 r- _8 k
;;与当前turtle的交易总次数, y1 g R% ~9 B4 M D/ `# d( ]
trade-money-total
r% c# i0 q2 [;;与当前turtle的交易总金额
$ t' ^0 G% A! ilocal-reputation
0 ~$ h* `0 g$ L% h5 b3 Eglobal-reputation5 o U( N8 c; Z- ]- e2 L) c
credibility
) A5 ]" ^1 z0 b) ~;;评价可信度,每次交易后都需要更新
* Q# d- y9 H ]7 ]% ?credibility-all/ } a- Z) P, B' c& 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" } V) k. g1 e/ C+ Z
% y' {9 i+ R5 v. ] ];;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
5 Q! R: I( T- s2 o" `credibility-one
$ |2 q$ `1 Y+ i;;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
5 q; X/ I+ [' Y, {global-proportion
0 W' w! E- ?# A( v$ qcustomer
1 R" w% Q" a. k, E. C" Gcustomer-no$ b( b/ [" ~9 w8 L2 `* n4 Y& E
trust-ok
8 W r$ i# Q7 j9 v& wtrade-record-one-len;;trade-record-one的长度
" O6 J8 s/ H7 x' p5 w& B2 @) Y]
( `* G# S7 S' l$ o# O- C
h x9 U* ~) G5 k;;setup procedure1 |+ ~+ K/ I6 b3 k9 A, s6 C& [
" s' h1 \7 w/ B
to setup
1 ^5 |5 O, _5 h1 |: d7 m% _: k' ?
ca
8 {2 G/ h+ |* @7 o8 S8 {0 x( v) F7 |$ U
initialize-settings" K7 J) G( v) y0 R+ r' E
: G0 W; }2 o: P3 Y* ]" Q" t2 C
crt people [setup-turtles]
: h2 Q' m) I& V$ G; q* F: E% }' T
reset-timer# T+ X) b& D# T& n$ B+ _9 b$ C
7 x( k& f# `3 a, C# g, @3 Q# g
poll-class! J/ r" o. h9 S% f7 z- a
% T- i" v' Y. L' _- v
setup-plots) m) r' ], G) {1 K. J
5 }! K- Y7 B8 i0 G# D3 Z, Ddo-plots% R+ v d! W+ f0 ?/ R: o- s# p( B6 w
end. z2 {: B, r! u2 Y
i3 @ x; J9 eto initialize-settings
: G9 E) L, |# r6 L! {* C1 j
: c% q5 O3 M& W9 X! m9 M7 Y8 iset global-reputation-list []5 y% t! k; z5 s5 e* o- K
! W0 n# b+ ^; A ?6 R
set credibility-list n-values people [0.5]
: K8 U# u" r& C$ r2 r+ K& @: z% @$ f+ i6 |. z
set honest-service 0
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set unhonest-service 00 l3 b) d! r2 ]0 c" c9 L
- X0 [) J+ Z- h
set oscillation 0. Y* P- x9 I8 L9 K# M+ Z V
9 [3 d) V% L" S' g0 b U, gset rand-dynamic 0/ e( L ]! P u( l1 Y
end* a, L. d' b+ E- M9 a* r6 q
4 O5 Y* @ t( M$ f! @. _2 eto setup-turtles * d; ?. q; P* C7 {
set shape "person"
# x6 r. e# G& e' ?' _+ {# Bsetxy random-xcor random-ycor
2 }8 I% n5 r9 \( K. C1 qset trade-record-one []4 T; e2 b# x1 U, l# L
* \2 G) f. S, V- M1 u4 t
set trade-record-all n-values people [(list (? + 1) 0 0)]
\3 l0 k v' K- i3 l
( T, S' x1 |; yset trade-record-current []: ]( _% ]$ ^' i0 \
set credibility-receive []6 y3 D2 V2 m% w+ c6 u
set local-reputation 0.5
4 s" e$ x: P$ c- t6 U* W7 S, sset neighbor-total 0
% n6 N$ [2 d. c% ~/ y6 T! S, b. Bset trade-times-total 0
4 K* p' \. O+ Q) n5 U8 \set trade-money-total 0
* y8 w) `# {5 ?: ?2 u4 |$ l sset customer nobody
) J+ J* d& k0 Z5 A4 Vset credibility-all n-values people [creat-credibility]; A4 h/ @% b8 F' y2 J
set credibility n-values people [-1]
; Z7 \ Y# c" Y. U0 }! n8 r4 F Nget-color: V3 I9 ^2 l8 s& u8 C
) {) C1 }5 a9 G* u }
end9 {) @% @0 a8 }1 V
; u1 z$ G2 @" W& M7 F& i5 G0 ^) y
to-report creat-credibility
4 v' ~! l/ \: F6 T! ?report n-values people [0.5]' `1 Q& G C+ [2 F+ u- z. C
end
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H+ ^6 g* z0 E9 g Yto setup-plots
2 W$ C! Q1 y+ L( d, H9 q( t- G1 x
set xmax 306 b7 t [# P7 j- n
1 B+ z k: \6 I% |' @6 ]
set ymax 1.0
' |6 Z+ Q1 w8 |0 @; ] ^8 F) O5 c7 ^* ^& K
clear-all-plots
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setup-plot1
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- t- R6 [/ w' k# m/ \$ G @7 nsetup-plot2
% p t; N1 l, f# Z) a) E4 B* ?
. M+ Y* |$ [* P d' \setup-plot3
% A( X- u' W! x w6 Kend1 e: e- O1 t! [/ H
/ |9 Q$ m/ O) W
;;run time procedures6 r9 q. S7 X% H" F
3 {; g+ r+ M- H6 {
to go9 L( w) Z) }4 n8 x3 \! I/ K3 Q
8 ?1 b% k- L4 d; t
ask turtles [do-business]
) G+ e a' ]! wend8 x* \ K5 Q3 y8 P4 e1 X& a! P+ ^
7 t0 O3 {+ l8 z; X' {6 E# R
to do-business $ }9 N3 ^, g7 R
; k0 d# n% I7 m$ w' i9 J/ ]
! a* U8 C3 m) drt random 360
+ b' K0 {. b" w$ \3 G$ X
2 t9 R: r% b- x) a- E' ^& Gfd 1; @. ?& d1 k9 b" t
+ q" |3 }- A9 ~$ p! G* U6 Hifelse(other turtles-here != nobody)[ j g3 G7 f2 c0 c c
% @! F9 |8 G& y- A7 Q: L* C: p
set customer one-of other turtles-here+ T1 T: d/ v' U$ L- \5 X
9 T2 R0 ?% _+ D
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)4 m" v' e- _5 y% Q
[trade-record-all]of self
1 F" |2 q) |- R0 N& {;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; [' J6 \) m* _) b3 `. d6 d3 m" l! W3 \4 M% t& s2 N
set [trade-record-one] of customer item (([who] of self) - 1)" I. u+ N8 j6 G" v, q
[trade-record-all]of customer g5 l9 X4 L" Y# F) C; R7 [0 |
; C# b& p$ s/ X1 @
set [trade-record-one-len] of self length [trade-record-one] of self
% @7 I$ | p; X) e J0 b ]" k8 `$ j: ^" v* ^- p
set trade-record-current( list (timer) (random money-upper-limit))
+ D: i: |+ Q) T& ?& a9 i% z- l1 z9 P/ M# @9 m& U+ X4 p3 y& E) W' r I
ask self [do-trust]" Q$ E6 f( v6 O- z N' H+ _
;;先求i对j的信任度: |+ Y, q: n! _+ ~. q3 n
# |. L; d1 R- ]+ D$ yif ([trust-ok] of self)- K& ?! r3 [% T: o8 n/ L# r
;;根据i对j的信任度来决定是否与j进行交易[
( D$ m- ~. c. A2 n# l- G( rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; G2 t2 \9 T- K( p: s2 i0 C
% w: V$ e; T" U- d* Y% q4 n
[ ]# D' z& e, F. S: x/ T- W) K' \
2 _+ }1 X$ }9 a7 k& I
do-trade
* q) v! l- {+ W: m3 X& j2 Y+ s, l" M- I* A, m. s9 Y( x3 s+ {$ }0 `
update-credibility-ijl
& Q* L; Q% V# X2 D/ n
1 t. q( ~- k. ?+ n0 |update-credibility-list
7 E, e7 ]+ {. Y" o1 ]8 k4 T+ r3 K
! m" m W) p' V3 G7 k& r' q% {4 g
0 ~( n. |1 i# @: h+ m, G( tupdate-global-reputation-list% v7 R0 n7 M. y4 H/ w, G) N
6 F) g8 I h" v" r0 @: X' ^( o% T, A. e
poll-class( `0 z6 j/ }' B* `! m
l, H2 X1 n0 Y4 X( V8 d
get-color/ S: p8 s' w- J2 O8 `
' g5 d3 |) p3 [" j]]7 a/ g+ v0 R w; n# ]: F
$ i" M* z# _2 _3 R/ Y6 X Z;;如果所得的信任度满足条件,则进行交易
0 f) t* m. }! W: P5 W& l6 |5 R5 U$ [/ X: t a$ t* d- r' e8 A( e
[
9 v! A& R( L9 c+ v, i
, e1 H# q* P0 K* W7 {rt random 360
9 u! Y- ^: C1 g- I x# J5 D' J& O! j$ W, g- O! I
fd 1
% P* A; i$ A1 b) Q
) l5 | w& N' l( ^+ f6 o% b; ?]$ u$ d3 Y# E' O6 c+ {8 E& P
7 n) |3 R4 q0 @" n
end+ b3 ?, i0 Y5 u/ |
* b" O" z5 ]( z5 \6 _to do-trust w) f; m' P8 F' F
set trust-ok False1 h9 ^; i {) Y9 b& y8 q
/ ^ U# Y2 W# b8 i
4 J; F( ~2 C) ~+ {4 s4 r! b/ zlet max-trade-times 0) s4 W- W: I$ _, H. B" i* A
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! G7 z& u7 w7 N
let max-trade-money 0
3 X4 ]- X W. I* T3 Bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! u+ q0 g- M% d @' }2 y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 S2 h5 F7 c+ p3 L4 I+ ^1 A' z9 g
7 q! ~3 H+ F l6 B! }" D8 E; r' f- c- j. Q K4 P8 c' W
get-global-proportion
4 P( f. p5 o/ _4 n# G5 v( k dlet trust-value
4 V1 M0 F! v- f+ T& U/ Ylocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)3 m- }/ N& W3 G+ _2 {4 V% b N
if(trust-value > trade-trust-value)
: \6 m: D5 i0 F1 d[set trust-ok true]& i1 j) c1 F5 f; I/ K3 [* K
end
T/ P5 [! z8 g: B" k' s* r( T4 _8 f& ?* z% V
to get-global-proportion; w1 C; M4 i0 @
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 R3 }/ o2 P2 s; e- m' A, U( B& G[set global-proportion 0]
; p) D! z, J# c1 Y8 W1 d) ]4 O7 E$ K[let i 0' q5 X! y1 |2 _" v
let sum-money 0
7 d6 f+ [. W' xwhile[ i < people]' M) J U4 ~/ f$ g3 \! [& D
[4 l5 R: }! F/ @ f
if( length (item i$ r: ^4 a- x6 {- L! t3 Z
[trade-record-all] of customer) > 3 )7 X0 D( h# n5 ]) j& B
[
. x, H j* k/ j0 }' R9 hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 U7 J" `, L; l/ p]: P7 i9 s, e: I; n: z. m
]
/ z/ [4 j* ?7 ^8 @" Vlet j 0
# h3 B, N! S$ E3 n- Dlet note 0
6 ?) p% k3 ]2 W; H! \) Cwhile[ j < people]/ y. P& k* Y! B
[
4 E; V# V4 \1 i) |0 ]& `0 Lif( length (item i3 c' @$ r8 C; h& {; T
[trade-record-all] of customer) > 3 )
) u$ ^+ |5 V' K$ l& w) x% n& [[
% t2 p; f1 T6 O0 Q. B% cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- y7 d' r- b( o! I; s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% U) j( h. B) O5 x$ ^; M' h) @& A4 q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# H& G/ s4 w6 B]
: r2 v- f- h" |]1 o R1 D0 y4 X+ @& z ^
set global-proportion note8 v& {/ U" W4 h
]
) ]1 Z/ L; ^* n b" h3 Eend
. v. \ B1 Z8 L& }
P7 l: j$ O( h& j5 ?. C! v) v7 Xto do-trade. o- @$ n4 T8 F) \# p' L
;;这个过程实际上是给双方作出评价的过程
, k7 E8 j% y) N( vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 `( D* b7 g! ]3 D! R0 W- v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. B$ ]) p8 W- o5 {8 z0 ?set trade-record-current lput(timer) trade-record-current
; }; a+ V: T" u" `: Q+ U;;评价时间
: q& s6 n* L, \ask myself [
" s$ Z7 v) A/ R$ r" Qupdate-local-reputation; {3 V v& R, i7 D2 {
set trade-record-current lput([local-reputation] of myself) trade-record-current
$ E2 w# M8 p+ a3 v- u1 q]; k6 M) @& g$ `% s* O/ K
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 E' G) P t1 B! E;;将此次交易的记录加入到trade-record-one中! I4 }- p# c# N! D! b. y& e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ o4 o3 N# B9 W5 G) c* N: a
let note (item 2 trade-record-current )9 ^, J( e9 a4 C" i7 g* B, j
set trade-record-current5 a* C/ H% C8 ]6 Y6 m; K- g4 ~
(replace-item 2 trade-record-current (item 3 trade-record-current))
' i" ?0 v* m- mset trade-record-current- R# _( }$ M3 ]3 ^
(replace-item 3 trade-record-current note). D" o. U' X( }8 h4 T! P
! i5 {, I6 {9 V& _. T b* [, Y+ q* A
ask customer [
5 {/ V1 }; Y9 E) eupdate-local-reputation
0 Q' v2 f2 r0 u6 Fset trade-record-current! z D9 e- A1 O; d* S! ?8 J; W* N
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 @( \$ p: }: G Z! p) G! c]. }! Z: {1 Z# g O5 W
7 I8 L' W% G+ z/ k
: e" m ^7 f! T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 L, x9 u& S' h i% J9 _7 d9 l; M* @- ^' K8 j5 M* ^3 `9 A' X
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 _' E7 q$ g) @# X5 |1 l! o
;;将此次交易的记录加入到customer的trade-record-all中1 A; Q( |( p) T5 z7 |
end& n3 w! r$ V1 @5 p$ X! Z3 {* V
: K6 T' F# I/ G8 { ^: C9 cto update-local-reputation
; t3 g( I+ C, Y- V3 I6 }# P" Q: C* ?( Pset [trade-record-one-len] of myself length [trade-record-one] of myself6 D: o# i$ ~ U% e8 G$ r4 o7 b
7 X: }: X, P, }4 }1 U4 X. ~" F6 U6 C. |% T# H
;;if [trade-record-one-len] of myself > 3 " l4 y, P" M+ g
update-neighbor-total
2 C& r& ]& L! X1 h% b7 S* g. D;;更新邻居节点的数目,在此进行
% G) _" A$ e. a8 [* q+ x" _0 W4 ulet i 33 [0 g0 e B0 J
let sum-time 0- b) R, H, V- |1 M- n& s
while[i < [trade-record-one-len] of myself]: \1 r! ]9 r& n ]5 i
[
8 f& _0 ?' Z$ X" B) I& E+ Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 I3 q" |* c0 B. ?1 T3 o( q
set i1 ]4 t5 l! g6 D _
( i + 1). h3 h4 ?- ~% K
]
4 e- @0 V' ?' N6 W- elet j 3, ^/ m$ O: d$ W* R, }" l' f# o
let sum-money 0" b- Q9 |4 a' K5 ?
while[j < [trade-record-one-len] of myself]
7 V' N7 g% x8 q5 A) U) F- l. }[
6 P1 k6 G$ a! c9 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)2 M6 O8 {+ r7 g. a# ]0 Y
set j
* \) m& a4 R4 H+ ^8 c( j + 1)5 F3 W4 y6 D7 F5 s0 e
]
: E; R7 i* R/ \let k 3/ S* W. B* ]2 ]% ]
let power 0 W6 b) T ~' W2 y1 E- }) e
let local 0 L, `1 z- W1 U% i' k' f# S
while [k <[trade-record-one-len] of myself]
) N/ a5 m4 ]! @[6 g* A6 s7 l4 t- Y# C2 T# ]" @; D
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)
( Y' Q$ j4 l9 v$ o& ]0 gset k (k + 1)5 X' S4 ]8 F( x1 u' V
]; Z6 k' q! @! n- l/ t
set [local-reputation] of myself (local)
% ~% K$ U m$ aend
2 h v; u/ ?9 r! Z
% q& \8 ]9 Q T, L0 r( lto update-neighbor-total
) F7 e1 T: Z) y$ F( O' l/ h
" i! t* D* r. F: E3 u2 Sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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) w+ y" o4 h: Y2 x
end z8 F3 G) T5 y# C3 B3 e
7 O+ }; ^: _- u4 Z# a3 Wto update-credibility-ijl
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;;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。
# T0 X4 b* m; Olet l 0
* U! l0 {: z7 } z" }while[ l < people ]9 L" q0 V0 R4 y3 E" Q0 M$ n* t
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% t/ e V9 ^; s+ s0 o8 x t! fif (trade-record-one-j-l-len > 3)( d* N9 z- u5 X$ k; ^1 F) 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
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let sum-time 07 G- ^9 d7 U9 E& _2 ^8 O
while[i < trade-record-one-len]( o, E$ h. x+ S# a% k# R6 U# r
[
$ ^& o! e' W' |4 x! n, qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. y& j7 B2 s& q! q+ ]. Cset i. Z2 {3 \) K, D) [* h$ V# X$ M4 D9 ^
( i + 1)( h6 h) I- D6 w9 s8 Z9 _
]
7 a: ` P; Z% `3 h! ?; U1 E* P# C8 Klet credibility-i-j-l 0
* x g) n/ v" [' s, w;;i评价(j对jl的评价)3 B. ?/ G7 `8 E) v- _2 W
let j 3! g( ?* K: Q: S/ U
let k 4
4 l4 `7 b0 O+ k# F. H: @while[j < trade-record-one-len]3 |, R- m8 m9 n2 i' M
[+ l$ E7 ?# [( Q0 G8 D: T
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
! h4 Q8 @" y1 ^! W& ?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). Q V E" D5 e8 m1 @( `: c
set j9 G: ^8 W Q w" K3 i
( j + 1)
X* P" \6 R! a/ J9 L. `* F" t]+ F% J. r+ W" Z1 @1 K
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 ))2 L" P" k( E% O0 ~( t9 A! b" e
8 j6 c) W0 O3 W6 O
' n1 b) H% b! [3 i% hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) c; W) }- x' Q1 }, s0 H
;;及时更新i对l的评价质量的评价9 Q# G0 G. ^- y) E
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
G1 p) x' ^; ~set l (l + 1)) M# }0 U$ R" p( Z
]
* {) Q( z1 u; R0 w. s- L* o% q8 s( Gend
9 N! I4 |: A- q4 c, u- Q% x5 b' S% O5 d8 B) W4 N8 O
to update-credibility-list
/ f- d+ `9 |6 Alet i 0
3 r9 f. X( i: e3 Mwhile[i < people]/ r8 j9 ]0 ^; o' ?/ \
[
1 L5 i: [! S# `' ^' B6 r& l; Mlet j 0
2 q" F8 o5 G7 K: W! Mlet note 0
+ n5 O# Y. _% | f, @let k 0
$ X* \' J, B, Y' {5 k, ~) Q1 f;;计作出过评价的邻居节点的数目4 |3 m& I3 v7 ]' f9 \
while[j < people]
( r7 X/ f! [' c- r[" ?" A7 h. O; S, Y e4 i5 Z4 p
if (item j( [credibility] of turtle (i + 1)) != -1)
& W' C8 D1 _- r- T' C. ?- r;;判断是否给本turtle的评价质量做出过评价的节点" ^# z1 Z* K; V0 |
[set note (note + item j ([credibility]of turtle (i + 1))). E/ n2 F: [( I$ x' W
;;*(exp (-(people - 2)))/(people - 2))]' Z1 s" x c, \* ~ _
set k (k + 1)1 R* y8 n; D% ~+ s" }
]; {7 p9 i+ K1 J
set j (j + 1)6 l) }. S6 J0 ?$ d% \) U: u
]' s# Y8 s# [! Q6 _9 Y
set note (note *(exp (- (1 / k)))/ k)3 S* E0 a( \$ I1 ?3 W J4 x- b/ ~
set credibility-list (replace-item i credibility-list note)
) r1 t6 |7 S+ O1 q& ?! nset i (i + 1) u/ a; s" Y, o3 H5 `
]3 m. y9 Z4 ?0 T- ]9 M3 f
end
0 c) k. ~1 t9 z1 l9 {4 ^
# q4 V& `2 N) u0 ^; Z9 R T- Pto update-global-reputation-list
% e: d8 G1 O4 K; n9 flet j 0
& D/ z: m& y& K W4 I& B0 k) Iwhile[j < people]$ ?* e+ P1 K& T7 A5 s9 V; {
[
+ h$ s/ x n klet new 0
) y9 S0 W" {9 ]8 Z+ @( i' t;;暂存新的一个全局声誉3 J4 g X8 {5 S0 e1 N( a
let i 0
c8 b2 I! w7 T6 `# Q1 p/ Rlet sum-money 00 ]$ j9 S: ~9 U8 y Q
let credibility-money 0
Z3 \: G5 ~% w) c% Rwhile [i < people]
# ^. a3 ?7 L( T- F[# G% B, \2 d5 X( p) M6 m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 z2 @9 D# g* w1 ^+ @" E
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! }! |1 C4 F4 F# L+ q7 o/ J8 t6 U# Pset i (i + 1)
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let k 06 l" N) P5 L5 N6 `: b" {
let new1 0
1 x; s5 g! J# M; S: J |4 ewhile [k < people]1 G& k* t* D: w/ J; ^2 A
[) R! c) V' X( z0 w E7 m0 _
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)
2 c$ M J, c) A- r5 ]5 \3 Tset k (k + 1)! j/ o" }" b2 N" U* r
]
( f% G! x. }1 b5 G( w0 z7 r" ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 m7 j! ?1 h5 A- ?4 S, ~6 Dset global-reputation-list (replace-item j global-reputation-list new)1 x, K9 l; b1 p* [7 O7 k c# r
set j (j + 1): O5 Q# J* T9 w! L |& l ~
]8 b# j! ]) f9 S+ E
end
2 \8 V7 }& h- D& U6 e3 n9 V4 s2 g0 ]* {' f2 t" Q/ u
1 r1 X* J* D' Y% v+ L; N
+ I: A" ]) n* G' P7 N8 B" `
to get-color8 V; e7 o+ C4 o+ H1 F: @$ t
- O/ m) U4 q+ m* Pset color blue0 k* f6 _ k& h2 T# g; M1 w
end- V2 B% m% Z$ d( M1 c# T
% m% Z0 I" g6 }; w$ G7 M: Eto poll-class+ C7 w& E7 J) U6 j' q
end( p/ W& S6 {) C$ F* x( k! D
; Z, C7 \7 N: H/ |" l( Hto setup-plot1- a7 e8 P; ^% B* Q
+ N& v! Y: K/ ~8 G3 s$ @9 Cset-current-plot "Trends-of-Local-reputation"+ A2 q% S% G! P; M' _8 H
E1 U0 s! j8 w% D0 ^$ B
set-plot-x-range 0 xmax( C3 U! B* v. |9 I5 L7 Q" Q
5 }% U/ g8 l9 [- b' `
set-plot-y-range 0.0 ymax+ X" U& u5 R0 g6 X
end
! Q3 z) ]/ v7 O Z3 y# y
2 i5 G% q. n. Q! E2 \( \: [7 I7 H9 ]to setup-plot2" G! V b4 d Q7 j
3 O2 R8 N4 N/ [, g. n( x# i; ^set-current-plot "Trends-of-global-reputation"
& j3 @- u0 I2 u- b) J
j3 u7 \, v! @set-plot-x-range 0 xmax
6 J. Q# x: c V) Z, D2 F1 S. i' X3 v3 ?
set-plot-y-range 0.0 ymax
3 d8 \2 H1 a7 M4 `' Z0 @; send/ ?- _2 |: _ o+ O1 u
+ W% e' ^# q/ b3 I( v& E6 \
to setup-plot3
+ S2 t) t; B6 W) g
' S p6 h+ D" \set-current-plot "Trends-of-credibility"6 a* m. s! U1 |/ h. G
! z3 U& W1 N1 j! Vset-plot-x-range 0 xmax
$ r9 e/ z. N% Q( Q% x3 U
- z. G1 p+ E) Y- S8 T' [6 jset-plot-y-range 0.0 ymax
7 w" z+ r5 }3 ?$ g' L+ N9 X! j! W! Mend
; n% ~, h5 R) k" h* z
/ U" F! [" m* v7 ]1 P1 e6 Y4 Xto do-plots- M6 L0 f- A1 G2 i2 J
set-current-plot "Trends-of-Local-reputation"
( w, ?/ A6 o b0 ~: ~& B" Hset-current-plot-pen "Honest service"
6 Z' w3 D8 F; W5 i8 @+ |0 t) Pend' |6 f+ l, G0 F7 l: t0 V
# J: x t+ z8 D% @9 B+ k3 D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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