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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
) v2 a* N, y( t/ z/ Wglobals[! b$ h! S2 P9 u! E8 ~
xmax) _* c% B# L8 J3 c, M& ~ A
ymax( K# h& H$ \' [! J6 q8 y0 U
global-reputation-list$ q7 A/ I7 X& x* s9 k5 ?
" E* B% m% S! |* Q;;每一个turtle的全局声誉都存在此LIST中
: L8 s( @% h% B. ^9 Pcredibility-list
* P) T0 H7 P! v8 K( Q;;每一个turtle的评价可信度/ R3 D- r" a7 ]* m# y' d
honest-service6 x: u" L; G6 d# ?* w% t
unhonest-service2 h( ?7 _) a' N, _7 T' @
oscillation
) N8 d# K2 ^4 L- L Hrand-dynamic, d0 G+ g8 T- v( K
]2 N# u! F; R7 x$ t5 \- X
9 z f+ e" d. i9 {. ^turtles-own[) G- I" o D* [* y+ t4 Z0 O9 A
trade-record-all3 C8 w9 a6 P! m9 k! X# `/ R7 X
;;a list of lists,由trade-record-one组成2 g" e+ F3 ^; C; P, V4 F5 k! e2 C
trade-record-one9 W; p6 n. U6 ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: w D e# \4 Z, I% A
2 ?. K: K7 c: h- ?7 Q C
;;[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]]
: P, M5 X. ?5 B9 C0 X. ~/ Ptrade-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]$ w' K. @0 p4 p( q* g: O. g& a; r
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+ |9 X; Y4 ?" N- _& g7 Q# {
neighbor-total
, W0 J$ ~- C' g, c2 h. P;;记录该turtle的邻居节点的数目
' N4 x/ ?4 R. j i* {9 Wtrade-time3 x, U* y+ u' ~+ h' D6 @
;;当前发生交易的turtle的交易时间
; B. ~& s' N1 Vappraise-give6 p9 H: i: Q" T4 Y/ s
;;当前发生交易时给出的评价0 W0 F& p" \1 z1 _5 Y
appraise-receive2 z- ^$ W/ ?& N7 z6 _! g
;;当前发生交易时收到的评价- B3 [, C" l0 ?6 v5 h; M8 N& g
appraise-time
4 o. k; l* I' k) {: N;;当前发生交易时的评价时间. }) T+ }# X* Z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* z: M$ {, N, \( E4 k1 @
trade-times-total8 ~9 y( x9 P( D0 D7 N
;;与当前turtle的交易总次数
. d% Z3 X# A; [trade-money-total7 O$ _! z! R6 m
;;与当前turtle的交易总金额
4 ?2 z' O1 B& g( L3 w. s% X8 u1 _local-reputation
% E; n r2 C* u I2 M4 z; T3 o9 N- Pglobal-reputation
- D$ \! c! }% q- \+ U3 y1 Scredibility+ n8 [; j' ?. a* y* o
;;评价可信度,每次交易后都需要更新6 a# O y# C! O4 ^* F) r
credibility-all
# X% a& q& I) h) ?: N% W! Z+ 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6 [9 p- O" N% a6 H
$ ?( r8 o8 C1 x* i' e
;;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# u/ a* f& R5 c0 m& Z! X$ G( E
credibility-one
4 y | \! {, j Z5 P( i- Y;;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
! {- c" }6 \2 i9 x1 ~" Oglobal-proportion
1 w* w& @. a$ n, W$ o& r) ucustomer4 D) \. t* q6 `* J
customer-no
# X/ z- l$ S! G3 Jtrust-ok
" b2 N. K9 w( Ytrade-record-one-len;;trade-record-one的长度1 Z [2 L: q2 G+ ^6 l
]
7 E! }4 F N1 ]2 }6 e0 X
; a/ w$ h/ u: M# g; ?;;setup procedure
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/ r) y) a, n& ~( W+ ato setup4 u) R" w( [+ U7 l- Z+ T. ?
; v b, W, d Z9 d& ~8 j1 q! Lca
2 z& w, J% V$ T; b% v! a+ R( m
5 h. U) T% D1 _: J& c# winitialize-settings7 C) I, {2 E9 e s( u+ f
) ]8 M( J: W: _* F: M4 gcrt people [setup-turtles]
* a" i! a4 T, F3 |* w
2 R6 G# F ^5 H+ E* Q% hreset-timer1 T$ U3 S( W) O2 ?& H3 [5 p/ k
8 d! |9 i6 r- e) z- {poll-class
! u6 g7 s2 s% W6 E0 E |) Q9 B
) {* K8 ]2 a8 l) T4 C+ msetup-plots
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* A _; G* L7 I( w" u& g) r# Ndo-plots
, G/ Q* c# a% n7 S+ q+ }end
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+ }2 Y1 ^$ @; r1 Vto initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]0 m" I& [- K+ }7 ~* k! Z
! t. e7 I% J% ^
set honest-service 0- u, j2 N# G- R" B" o% j) z
+ S% u9 X! M, x0 A) w7 |* wset unhonest-service 0
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set oscillation 0
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set rand-dynamic 0( j f+ a* N) J* [
end
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to setup-turtles 5 n, \ M' N+ {" u4 Z6 _# N/ `. S
set shape "person"; M# F0 E( O( }6 q
setxy random-xcor random-ycor1 x0 O& N! e1 s3 z
set trade-record-one []
1 y/ `6 S# S; Q+ N2 N" v4 Y+ H8 p# c4 |8 t$ z
set trade-record-all n-values people [(list (? + 1) 0 0)] ! U, }% F8 j& V' O; _. r+ }
' o& e4 v( e2 w) F4 `set trade-record-current []
5 h$ n/ Q- q& r6 L7 yset credibility-receive []
, B6 f0 g1 p: [3 Iset local-reputation 0.52 f7 s( M0 \8 K B6 ?0 g2 M. Q
set neighbor-total 0
: W/ n B; h! N$ Sset trade-times-total 0
: w7 ~: ~+ ]: Aset trade-money-total 0( P, I' H: j3 f6 F3 O( }$ ^/ i
set customer nobody
+ A% Z* ^1 u' p; J8 n+ Lset credibility-all n-values people [creat-credibility]2 z- R+ I2 Z# V5 X! E
set credibility n-values people [-1]# [) `& g9 W( O% V6 A
get-color
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end" Q, k: ^: U8 R$ _9 ]8 m5 ^
( _; q4 X t7 Y* I9 L9 \# p
to-report creat-credibility
" H$ P; l, w! \: ?report n-values people [0.5]
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+ U; F5 T( O) f8 v+ a4 k( \to setup-plots4 H. x" \- l' S# m
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set xmax 30
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set ymax 1.0( k( b' ~$ ^3 f( ^- U
1 O" U+ j1 A9 T0 r; q) a0 pclear-all-plots2 F# c$ G1 Z( l( ?: H+ L
' @9 Y* z% [9 X# k; I+ W! nsetup-plot1" ~3 f% [, M, | ~5 x& \* n; O4 r
3 I6 p& \) \$ n& {8 Rsetup-plot2
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setup-plot3
6 ?4 {6 ^: R* X Uend
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- L3 M: d+ [8 M0 h$ G' a8 N;;run time procedures- ^& O8 V* z& z. W5 G2 \* L4 P
- p" i+ i) a' f0 z( a5 s6 q! Eto go
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+ i5 z0 t4 x8 pask turtles [do-business]) i5 P" U0 C$ J7 l% N$ x
end+ j" y$ b# Z& O7 [. z5 v% n
6 T+ e+ Y8 w- @: Gto do-business
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! {; n3 E; C, H/ {8 Y6 B( I* Lrt random 3606 @+ g F4 z. i0 V5 v6 ~
, h3 M, f9 s8 h: S# \" g2 c& @' yfd 1
l+ n0 \: _7 d8 V, ]4 `2 [. N( V9 u4 e W+ a; }+ M
ifelse(other turtles-here != nobody)[4 C# ?8 v' G P" D" U8 _5 ?
; c' [5 `6 @$ R" Q {6 R! Hset customer one-of other turtles-here/ j2 G- k$ s6 j& D
3 [/ S4 G( ~6 c- ^;; set [customer] of customer myself7 P. C7 }" K8 T
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set [trade-record-one] of self item (([who] of customer) - 1)
2 H3 J$ u) s2 u6 R9 N2 G$ E[trade-record-all]of self
! \+ ~5 Q. C! R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# G* _; n7 Y; B. G9 w, o2 V1 y
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set [trade-record-one] of customer item (([who] of self) - 1)' j9 x& C0 n) M4 ~! h& @. [# e6 X5 B
[trade-record-all]of customer
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' `7 j4 a( o* g" g* W5 w2 k7 tset [trade-record-one-len] of self length [trade-record-one] of self) S* m& `4 U/ ~+ W5 }, B
1 c/ Q6 i/ B1 [+ I( Aset trade-record-current( list (timer) (random money-upper-limit))' D c5 y# J# m9 h
% a' {4 B0 N+ A7 i' @2 ?3 K& Zask self [do-trust]6 H* |7 @- A- r$ x9 n s
;;先求i对j的信任度
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if ([trust-ok] of self)9 @4 Q8 {1 G% X5 R4 j/ l5 D0 ^
;;根据i对j的信任度来决定是否与j进行交易[* F8 x* T2 v2 _$ \
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' H! R3 I) @/ f: |
1 k* n. V) M" a' \1 |9 s[
6 R& y4 s7 V7 l8 M( ^
, x/ }1 l) F- V8 P; `2 s' h2 V, a0 t& `do-trade
i2 X6 J) F# h4 S9 Z
. {8 R, _( J! x9 Vupdate-credibility-ijl& C. |. |+ Z# `3 M+ Y0 ]
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update-credibility-list! a' t% p6 F# L% S) W
+ h/ k' m! p& X% s
8 U, U! _4 p) _) m: B3 D; xupdate-global-reputation-list% P6 I4 a: S; ~! }4 c
4 w2 r: O: f( ^" K K7 w0 q9 j
poll-class1 X! k# G! _3 t5 |1 z
' L: Z7 J: [- ^/ Xget-color
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]]& w9 v# }$ {6 x( _' U/ t% h
, o* ]5 O$ D, g2 e# V3 s w
;;如果所得的信任度满足条件,则进行交易
m4 w* y7 `# R3 e! n! t. i. t2 q2 }& T3 x# W7 a1 Z# S
[+ n- | [ f2 ]
( J8 ~* r# u5 O8 B, L% B* F- urt random 360- X7 M' {/ G- R0 p' K! A+ g
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fd 1% U" a8 E8 L% p8 |/ S3 v
1 j0 a! J2 _, x/ X# ?) k]
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, A' Z- a% K% `$ i& cend
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, W1 i1 K' z% c+ |, P5 W! O/ Eto do-trust 8 [1 S$ A4 a* x8 O- Q
set trust-ok False
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& G" P$ `: B. e2 U* ^* [1 o, K. V% F
let max-trade-times 01 n. G! k- N* v7 E" s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 W# t6 _5 a' J$ w, j9 L$ |* tlet max-trade-money 0! D( ]6 s0 ?$ b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# Y8 x7 U0 a+ H+ glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 p4 Y/ V; u9 r2 q3 z+ T1 ^8 B ]
; w! R/ X& G& E/ a' k; q$ G) w
get-global-proportion! T; T {# [2 {9 z k) r% m- o
let trust-value
M9 Y0 K( _$ blocal-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 o0 y2 H- K0 w$ ?9 S* q" L
if(trust-value > trade-trust-value)4 j3 g Z9 u% f: g6 z. P
[set trust-ok true]
. ?7 Z1 `: s; w5 R: H8 }end3 K& |- ]) w, M
! L7 \; ^ m+ wto get-global-proportion3 K& M# H. l5 `+ E( I# h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 i& n9 p* d5 Y% L2 e% |; z
[set global-proportion 0]
, O. Y/ h b$ D[let i 0
1 ]2 P% C2 T3 @, h: a0 K# K# @let sum-money 0( @+ O6 M/ T2 h; n9 V, R. H# O
while[ i < people]
: y/ _3 i2 B/ ]) G8 O# ~) H2 h% h[8 L* a9 Z8 g/ v" M( l. U" |' }1 u
if( length (item i
' o4 ?4 H9 g5 g8 V) S# B[trade-record-all] of customer) > 3 )( H; N3 f2 l/ C" {) a- H% s" K
[5 [/ {* H. ~8 f+ l- \3 {$ S; S$ L: [) [
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. t( S& F% G$ e: v2 G. ?* J]
( o( f# ]* A. R5 d]
% I) m) E: s9 S G0 qlet j 0. c i4 Q+ N; e1 d
let note 0- o1 K1 i% \4 N
while[ j < people]
- A# c! z& v+ M. I; R[! R' ?0 P0 g* \1 o+ ~4 l
if( length (item i
$ x2 i+ Y% [! L" @$ z[trade-record-all] of customer) > 3 )
7 J! F3 x$ T* }6 W* V[8 j8 Y# U( I+ K7 S& o X: Q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* N: Y1 u. o, k) E$ X
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' e) Y4 Z( o9 {[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; e2 ]- l5 C4 |) F' n. C]( @9 [( u( i1 A
]% |% Y. T2 \3 m1 }& }3 Y
set global-proportion note
' k y2 x1 H! ] v X* i2 E]
' H+ u* Q/ D" y5 A- V8 pend
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to do-trade
. C) f1 k3 Q* o H6 N5 z;;这个过程实际上是给双方作出评价的过程
% r) |: z; r# ^6 {2 M$ `( z hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* F7 q! M! Y1 F1 W X# u, gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ e4 G t5 m$ c2 g
set trade-record-current lput(timer) trade-record-current, O4 ]6 L* B O9 I, q
;;评价时间# m9 f9 k! ]0 C8 V* p* N
ask myself [. h6 ]0 H' p5 J2 @3 ^6 i
update-local-reputation
: E; B. W [- W) L% k: e& j: j. eset trade-record-current lput([local-reputation] of myself) trade-record-current
/ ^, n; b" k) p7 C% Z2 J]
5 D8 N7 p/ k% y; mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ ?0 A) ?( ~7 k' e) V) B$ S;;将此次交易的记录加入到trade-record-one中
# `1 D* m/ r: K5 _4 dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 ?! y/ y' {! a6 s4 u1 ~
let note (item 2 trade-record-current ); G$ F% Z/ w# F: k% @& s
set trade-record-current
4 x: A( u" n/ \(replace-item 2 trade-record-current (item 3 trade-record-current)); z$ K5 G2 A+ K/ h$ U
set trade-record-current
% c% E3 o& u$ y(replace-item 3 trade-record-current note)( h+ Q. S( o9 d& \8 ?
6 |- Q, H8 b% p% R
+ h _$ C+ p! _* n4 j0 R: U
ask customer [% p, _: [ V: O, x
update-local-reputation0 [; p7 }! x8 }& R1 l
set trade-record-current* F( W- `4 f/ x& ~$ t3 e% _4 v6 A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 o. N; V! g/ C7 W: B
]7 D+ @3 y) A: n# W! h
, T" `7 L6 ~( g, ~- C) g$ N
# a$ I. [; N- `set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& K8 N1 W6 c @9 Q
5 K6 v9 |8 a8 d7 Iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 i6 P& u+ I- d) e. l;;将此次交易的记录加入到customer的trade-record-all中
& `: y1 C. s, ^& {# \4 z# J: Send$ J# ^7 c2 R* \6 O7 _) \
1 L3 n8 m3 R/ m z0 v1 X4 a, Vto update-local-reputation' S0 B) ~" ~. u% C
set [trade-record-one-len] of myself length [trade-record-one] of myself7 P- _/ g- q- k4 e. N4 q! ?5 J
. d1 Z8 O- d: p( ]. Y$ l9 |7 x5 |
! |' Y0 B& p6 k2 {# V% x) H W) ]9 f;;if [trade-record-one-len] of myself > 3 3 _% x$ W+ G' n4 g. d6 r
update-neighbor-total$ _9 Z- U8 {7 _0 B' E8 ~( l( @2 w: D
;;更新邻居节点的数目,在此进行( w0 l J# j d" H
let i 3; V: ]- p2 W2 w1 p) |8 V R0 B
let sum-time 0
" I( u, v8 l0 q- Rwhile[i < [trade-record-one-len] of myself]
4 K( x' F9 @; s- K' Y, @[
7 ~, ]" |9 f/ [4 R9 q& Dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, A& v& ]% Z/ i& R" eset i; g5 v* I8 N& [6 z0 [! j
( i + 1)- n; V& u5 Q+ L$ g$ H" ~; a3 O4 n
]
$ h! p3 b$ T8 t4 J$ d; t2 hlet j 3' C! |: r! ]2 c4 n
let sum-money 0
" I4 Y) X9 y+ qwhile[j < [trade-record-one-len] of myself]3 \6 m' b4 U% S" w! V6 f4 W& a
[
) `9 a- V) e: E. L2 ?9 M5 z/ U4 cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ l( P) A4 ]7 l. ?! [8 Sset j
- Z: I& N% [, ?0 P$ k. { b( j + 1)
& R/ q) n9 s+ v, P3 [/ R5 n _]
: b% t* N# t- T& i: t6 ^4 mlet k 3% R+ j* o d% U' O/ ^# b
let power 0
' L# i5 D5 K$ a3 P# Rlet local 0& j5 T& x; h) P* B. n
while [k <[trade-record-one-len] of myself]
: }! K& O' s# O ], f V+ D3 s[
& c4 P* p% g& U: K7 bset 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)
$ l# j0 I# o6 k8 X3 J5 Oset k (k + 1)
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set [local-reputation] of myself (local). c- A0 O2 l5 O8 y6 l9 Z1 I# c
end4 H- j2 h" N, P
1 f3 ?& h$ B5 H ~# w0 Nto update-neighbor-total
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3 _9 \4 P* c0 W6 C, ]9 o1 Zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
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to update-credibility-ijl
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7 p8 m% L( U8 h c 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。( O; R7 Q5 c+ A$ U' r9 D5 ?
let l 0* c- f$ ?4 f1 K7 T
while[ l < people ]" G3 g2 {1 m& p4 E* F$ D3 Z( y
;;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1 h! V( }' o/ s! z/ T/ W
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 o% `) G, u+ N- Jif (trade-record-one-j-l-len > 3)* i" A9 W1 ?' U# 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
, Y3 ~8 Z( w3 z4 g klet i 3
+ y& b$ ]0 W8 a* w0 q7 V5 wlet sum-time 0
. {8 z+ G9 E1 h+ P# hwhile[i < trade-record-one-len]
7 s9 D( x7 x" n[, ]( `' C7 n* R' s7 s0 p0 ]
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). Q5 Z# Z# T! }7 Y1 K3 V4 d
set i- k1 M4 `2 u* w9 F/ H6 M
( i + 1)
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6 E" u0 t: s3 K. i9 nlet credibility-i-j-l 0( n" m4 b4 e, p6 d3 n4 ?
;;i评价(j对jl的评价)
# g, \ X* G! X" B3 }: l" F) alet j 3
H2 q' [* C( t- o7 m% elet k 4! z2 } `. d7 ^* k3 O1 ]: A) E
while[j < trade-record-one-len]
) n2 ]; ^, q! Z% ]4 @$ r[
$ U7 x4 h9 x& ]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* E5 j+ y! G; @9 F6 g$ F+ o3 I
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/ h! ?! f& I& b
set j& R+ a. _8 t% p" _: u
( j + 1)
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2 p, v- W/ `* Y; t% J! @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 ))( A, M u7 k% g2 R: Y0 v3 Z" J
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! t* r! T6 m/ o( P4 V$ vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' g: D7 f, v$ y# C; h$ w4 Q
;;及时更新i对l的评价质量的评价7 o5 k7 [% Q2 V) L/ z Y2 _
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 p5 `' o8 {. v/ m3 j; k: dset l (l + 1)* E9 p8 C0 y3 H4 ]7 W) ^# j
]* }0 b+ K' v! ]
end
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to update-credibility-list. I' o* T5 p- x
let i 0
( x) @4 V8 _5 uwhile[i < people]
6 T6 Y3 c5 d& I) a% q( L[& C$ o6 b) S8 C) O4 w [/ R
let j 0
, u( k. Y% E( l, v0 G( r Xlet note 0
; ?1 n0 l. N4 @$ xlet k 07 h+ _: a0 P+ |7 s
;;计作出过评价的邻居节点的数目
: N& g) u0 V& L; v1 T* k: mwhile[j < people]
& ]$ ~$ ]% B, j7 e5 I8 X6 f[
/ `+ e1 L; }" F" r- P5 ?if (item j( [credibility] of turtle (i + 1)) != -1)
% a' Y) f) w* y; H( Y;;判断是否给本turtle的评价质量做出过评价的节点( `' i: u2 w5 A4 d! J! p0 w$ _
[set note (note + item j ([credibility]of turtle (i + 1)))" x& U7 s L4 N. N
;;*(exp (-(people - 2)))/(people - 2))]" n. r8 e8 G( h# s$ B9 [1 S
set k (k + 1)
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set j (j + 1)
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1 s% y' |% C6 b/ D* C9 Fset note (note *(exp (- (1 / k)))/ k)
& k3 |( |8 s0 x# ] ^set credibility-list (replace-item i credibility-list note); ?( s/ h+ k% w* U A P
set i (i + 1)
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end
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, b1 n4 j% R! [ U9 [to update-global-reputation-list
. E5 L0 \. J5 o% S5 U u0 Z9 i) Vlet j 0
* {! Q( R5 N6 jwhile[j < people]
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0 P0 r3 U4 ~) f, U W) Rlet new 0
: r% d1 m! u1 X2 u' _;;暂存新的一个全局声誉
/ M5 P' a: }; a5 n, c( tlet i 0% a+ k5 S' D1 f2 V0 K; s E
let sum-money 06 b7 B: C5 X2 V2 r
let credibility-money 0 @+ k" i3 u3 \0 e
while [i < people]% F9 ?" M8 n6 V* h/ \$ s4 H9 B
[
1 p3 u; L/ |: Y7 o6 Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 |$ u8 Z% i+ t, d% \& aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 Y: C* y7 c) J) Zset i (i + 1), B" R6 L# s/ K% ]5 t' x
]
/ A/ ~: A- X% [4 Mlet k 05 v% X* A! S' Z$ n
let new1 0; v+ T% K3 B$ f6 {
while [k < people]: M# m0 Z- i w E v1 n
[
T* w. }+ W2 `1 x1 W9 \! pset 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)' `* ]1 q' Q3 I/ V: x4 A$ ~! p
set k (k + 1)5 O/ x; J+ Z2 ^% N9 e! w+ l" T$ ~
]
, k3 i u. `# Nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 n/ Q7 O# W- ]6 {set global-reputation-list (replace-item j global-reputation-list new)4 {5 H" b" U, w. e
set j (j + 1)
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9 X1 o- U: I3 J/ l5 v2 Eend8 P6 g0 \+ \# U8 s
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& x5 ?- @9 s7 g1 d+ R$ m% `' ^9 X' Q/ w. y2 j8 ]& e
to get-color# w) W8 O8 U. A9 Q/ E( k
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set color blue# G; N: j3 d' {5 Y! H- N5 A- O7 I% [
end2 E/ j, w# U# d" X0 I' K* q, B s
# l; C+ Z6 _( m- p9 a" C( Kto poll-class0 C4 |& [ S9 n) r( [- r) O
end' ~$ E& I5 E: H* p4 n" F# O0 [
$ L( f2 }7 E/ o: Q6 t3 v# Bto setup-plot1
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set-current-plot "Trends-of-Local-reputation"5 J5 E5 }* k' k. g8 ?0 Z3 c0 `- b* P
8 j3 S+ }$ h9 i* _8 w0 B# Cset-plot-x-range 0 xmax4 [5 C% n( c+ E2 Q) L( F
L* N- m4 _+ Yset-plot-y-range 0.0 ymax4 C" s( F ?; {& e5 Y
end
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, \' W# ?4 X& z7 F Y2 c9 a+ \7 wto setup-plot2
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set-current-plot "Trends-of-global-reputation"5 i, p. E: g* Y# X; M: ~+ }3 F
' D7 Z4 W& Q! A' F) B% B0 aset-plot-x-range 0 xmax
1 ]6 n' o" Z3 }7 r2 n6 j( a! @4 B6 a5 s% q7 r
set-plot-y-range 0.0 ymax1 j; E8 _; F! C$ J3 V
end
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to setup-plot3 j% T) q G7 s1 m
( U9 `6 m: E) ~4 O: J
set-current-plot "Trends-of-credibility"
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7 z j# L4 W( dset-plot-x-range 0 xmax2 x+ g3 i" }+ l/ Y
( u4 v4 Z& t6 {- G8 A. i0 T
set-plot-y-range 0.0 ymax
$ a3 L# T7 O) B$ |% _end
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2 i) B% \* i$ ~2 J) I+ x$ Vto do-plots: D1 L8 G9 F% u+ R" I6 T+ c4 s4 j
set-current-plot "Trends-of-Local-reputation". W9 T) u X0 g& }* @
set-current-plot-pen "Honest service"$ s1 Q o v$ x6 ~
end% G' l4 e* w+ b# [% l( k5 B
1 E. y' o8 ~4 A[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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