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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+ h9 J! d) ]- e9 C- u
globals[
6 k d7 n/ }+ ]4 y, k' o' z* o3 u3 Cxmax8 O5 _2 K7 b+ n. ]1 }
ymax
L& |0 r' I+ C9 r& Y( d& xglobal-reputation-list
: K' C$ R4 S4 v ^& ^% c. T$ e/ t+ C
;;每一个turtle的全局声誉都存在此LIST中5 A, ^$ \7 x8 y1 k8 C( F$ M
credibility-list
9 S6 I' S) U. w( T8 l;;每一个turtle的评价可信度 G& A; k. o5 [, ?9 E* i8 t0 |
honest-service
# e4 q3 T$ U$ Uunhonest-service/ h0 C# O6 G; }
oscillation3 U# \4 w$ C T+ V4 T! g- t& n
rand-dynamic: \/ ^9 R& ]7 A- ]2 w# n( T H
]" r0 t" }/ U& V/ H7 v
y+ m4 G7 b n, S, F$ d) Sturtles-own[
/ n& k0 V h I& Ptrade-record-all
) u$ d" R+ a: @. |% K;;a list of lists,由trade-record-one组成5 B& b& e( L F! O3 m0 j7 ^: g l
trade-record-one
3 h7 ~, N- L1 |;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# F9 i7 ]' t$ ]! Q* n+ N9 G2 t- o; K: S/ H" f) y F
;;[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]]9 v% b4 R; p" X6 x$ W
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]; ` E: j" O8 i
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. _- }( t; i* d' \' E
neighbor-total; v% P: y: G. P9 I+ b) g* h
;;记录该turtle的邻居节点的数目; J5 @4 F! ]3 _1 I& e
trade-time/ E- R9 _- x1 \. k0 E
;;当前发生交易的turtle的交易时间
% L$ p6 X7 p+ i9 c8 Dappraise-give
, u" a M1 T6 T;;当前发生交易时给出的评价4 p: J* S9 K$ M
appraise-receive
! B) J1 h! L3 g1 E+ h' O8 V;;当前发生交易时收到的评价 T* S# w% d( y, `( a
appraise-time. p+ H3 S' r! }$ x
;;当前发生交易时的评价时间
' i6 P0 G0 }0 j( M0 K: z( Vlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉& q# h9 E+ H0 ~" l5 s# C, H# l( a
trade-times-total, c) e! I% o/ l# N
;;与当前turtle的交易总次数5 d: _# B, f" w& m. V; b( K9 }
trade-money-total
6 V% |) N! W. ~. `9 e3 Q2 |8 R6 a;;与当前turtle的交易总金额
. e7 V+ g: |/ P: ^: C9 v9 tlocal-reputation# h7 Y! q! G3 t( ]+ D, v" B6 F" ?
global-reputation/ C% S- u) `, H2 {, w
credibility
+ d; T# i3 N' l) q, Z8 n;;评价可信度,每次交易后都需要更新
; k7 w1 @4 T2 }! Ycredibility-all) a% R. _, e( P$ Z( S
;;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
$ G9 z! H# v0 V1 r4 h; D: x- | T% Y
;;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
1 r! w2 V8 \% A# C# j% j& o# O3 D) Mcredibility-one
* a1 U% P6 x: H& b! o1 |;;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
: L- e& z% _; a) X7 D* ~9 Nglobal-proportion; ]5 ~$ j3 k4 z o
customer/ D1 n' X: j% K7 y/ S
customer-no# i( c0 n( |6 m4 T* W% Q- Q) B
trust-ok# v- T+ ^/ a! Q4 t8 F
trade-record-one-len;;trade-record-one的长度
O! S6 t9 s9 w$ S]
/ s0 M- C1 H, ~! k y* y- [/ g1 o+ o( u% z1 S7 [
;;setup procedure
( D9 c' f( K$ O$ j
8 A; N8 x; o+ ]" v" n gto setup
3 S8 {( m" {) y; t( ~/ T; Y
) q$ h1 [( n0 |; H" Yca
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initialize-settings1 l; j9 L- g4 p& p/ ~& ~0 u( w( [7 @
9 E) G k/ ]+ ]5 q$ Ycrt people [setup-turtles]: h/ z- W' P) D X) a0 K
: ^6 N* \/ N/ C4 O" {reset-timer8 _7 P, p; D. ~$ M3 H: x# b
. m9 A" z! S% a/ i, K1 ppoll-class' H: ]3 _3 D& y8 R8 a
( o' R, h* ~8 D; ^+ Y% Q9 zsetup-plots/ s# B: F! J4 j' ]6 o2 X& R) k
% ]9 d: Q. ]. |! r0 {% N% ~ T) Bdo-plots
& X* W) \1 O0 t9 h" ~8 Vend
2 T' }0 e6 L# v$ n( m& r r4 ?9 ~4 h, x* ]
to initialize-settings
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set global-reputation-list []( H {2 b f" H- A
g" u# W" v: { t6 e, S
set credibility-list n-values people [0.5]
# b9 v$ k& W5 _! a- ~5 C3 N$ w0 ^: ]/ S
set honest-service 0/ M- _' s' D$ T
& ^! L- G0 s$ a# k0 cset unhonest-service 0
. {5 x. `5 I8 [: V
0 A6 u7 j$ t5 s8 z' fset oscillation 0
1 F7 \0 C( ^5 r. _! H7 q( A+ k! c& Z2 L/ L8 Q! v0 b
set rand-dynamic 0- i* u* ]. r( x. c% z6 D: S
end
9 w3 Z4 W, U) ~, y- O) {- O- h% D6 T( }' E' ~
to setup-turtles : \. F7 s% _1 i
set shape "person": A% k5 a, H% r% q
setxy random-xcor random-ycor
& O9 R$ r/ ]! x& ~. [" |set trade-record-one []
: k0 `2 M0 m5 O* F+ `1 h3 X' ?0 B. l2 w& r+ |
set trade-record-all n-values people [(list (? + 1) 0 0)]
* W( x$ x8 g1 S+ ^( p5 W S
J3 f8 a) L8 d' _% Jset trade-record-current [], ]2 @1 X E. W( O4 L# J' x8 d8 C
set credibility-receive []
5 v( S9 _$ i' Z, h& W: [7 Nset local-reputation 0.5
9 Z; V7 h% \; w# oset neighbor-total 0
+ x3 Y7 n6 g/ h7 |* c, M4 q# iset trade-times-total 0
. A. v3 @) g& e8 V: p8 Zset trade-money-total 0
- U7 V' S- ]: ^set customer nobody
. U& N% x! H- Gset credibility-all n-values people [creat-credibility]* H: C7 ^) e% {0 _( R! q1 ~8 p
set credibility n-values people [-1]- Y, @& n! t; v1 E
get-color
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( b5 a2 d) O, @! send- V4 G2 @3 ]: E3 e
2 N& F! K3 p; y4 `9 u7 U" @to-report creat-credibility
2 ]' K) o, ?" Zreport n-values people [0.5]
; f0 @! ~7 W8 I1 t4 Eend
) }8 e0 c+ R7 ?8 a1 ~/ p) I
7 V" t- c( f# e' kto setup-plots( f) n, O. ?4 q8 {. n e. E
8 W0 u: X! z* \- G/ ~+ Q4 v0 i; a, e
set xmax 30
+ w. q9 N' o' ~ ~% T6 p0 W/ ^& }/ ?+ S+ l& ^
set ymax 1.0
' }. U2 {' g+ f' D* X' K4 Z8 j: r0 ?8 v; F) Y
clear-all-plots6 Z9 l9 j C; W9 u% s8 t2 g1 y" ^
6 D R9 Q6 V% x8 Q% psetup-plot1
( ^! i" u1 `6 U/ G7 V& Z$ O
2 o/ }) J) r. [7 }# |6 w) tsetup-plot2
# Q/ j2 M$ h5 Q* y+ X/ }! N9 |7 T# P' E M9 m1 ]4 W$ I
setup-plot3
4 w1 c e. u( H! S3 pend6 z9 R/ g/ N# x
6 W2 @" `: M9 r% V;;run time procedures: f3 Z, d9 J+ c. L- S
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to go; V4 [) B) y2 x- g: u. z" U
7 B0 I% f" E# z0 ]7 \( t
ask turtles [do-business]
: \* d- F, _, c, Z+ p5 e' Oend
5 A% X9 B- F D: ^
3 C I$ _5 f9 ~to do-business # S2 J, n4 e5 v; g: B8 K
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0 Y+ D( R1 n5 lrt random 360
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fd 15 e5 _, s& u/ @! V+ n
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ifelse(other turtles-here != nobody)[) Y4 C, {+ t6 D8 m" ]* O k
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set customer one-of other turtles-here8 V- w9 y% w' t+ r
; X2 q2 T2 x3 y8 k" m0 y;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
' m. \" d' e& H y- _. {[trade-record-all]of self
7 p* J% X v5 ] V- c9 J5 A& Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1); y/ W$ d8 ]9 d: ~% N
[trade-record-all]of customer
* Z e+ Z. N, y8 ?6 q
6 t& g1 M. y0 F- R2 ^set [trade-record-one-len] of self length [trade-record-one] of self
; D7 Z4 r! }9 _4 p- z) H; ^
& i% |4 p; m% {set trade-record-current( list (timer) (random money-upper-limit))$ s% s; C( C3 O" J/ O% Q4 Q
, o9 R" Q6 X* n- Kask self [do-trust]( e8 b2 m1 S, }) b
;;先求i对j的信任度
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if ([trust-ok] of self)
9 ~% Z2 B. X5 v9 _. O. P;;根据i对j的信任度来决定是否与j进行交易[
2 {; l) ^: i4 `& {; [. w( _ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
. f' m, u9 |; K C/ e- _8 l0 t# V) n% `
do-trade
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update-credibility-ijl$ B4 t) v" i8 U
0 t7 h" [( {9 } }
update-credibility-list
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; A$ z8 G4 `$ n, @
update-global-reputation-list
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poll-class$ y) Z; @3 P1 _: l" A8 r( f# ]5 [
. j. O) f& O! C6 i) mget-color
0 D7 Y: ]) j+ E" b0 a2 l; }/ m3 @+ ?. \3 J2 n& p0 ^# S, ^. M
]]4 n8 K3 b) O1 m& R, Y0 U: t
6 g5 Z4 g0 {# |+ j% p;;如果所得的信任度满足条件,则进行交易0 W! S6 R9 ^! j3 X3 a* o2 [8 ]* c
$ l! E8 @/ _" Z' R* A6 J' |[
* }2 g+ W2 i- ~9 X/ Q/ s
% A# t( l6 [. ` Art random 3608 Q. b, E* ]) I, e* [% K }+ N
3 d# L& X) [3 }* mfd 1
, O3 y9 `5 D5 R: a( k# b
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& w0 e, m3 a; L* A2 ^
5 e" G9 }3 v2 k2 b b2 H; I# l( aend
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% Z3 U8 `, O1 m3 Q# Y' bto do-trust & ?8 ^& p3 v3 |. o" j+ l; K
set trust-ok False" ?" J& \5 Q3 z# _
+ X9 t8 s" `, a& k3 i" r1 J4 F6 A, p" b+ x0 u* J9 x; g
let max-trade-times 0, z* Z# o3 j2 X0 [- T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 q$ _* k4 d/ P5 C4 Zlet max-trade-money 0, s/ W7 i8 \4 k8 ]( D0 M7 }; p, f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- t% H4 h4 Z: ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- W/ Z/ z' S$ z$ v' ~4 d
3 K6 L6 g: V, z, d4 _# p+ e+ W
/ W. W6 o% w- e' v8 r0 u5 Hget-global-proportion
4 j7 j$ V( ?; O+ D# H2 \+ klet trust-value
( W) ]$ e1 V% \6 g4 f/ A$ 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)3 O" P1 Y9 o0 K9 |6 m3 C/ x: K* i
if(trust-value > trade-trust-value)& }( J! F2 s& [. k) ?9 o2 @% B
[set trust-ok true]
5 ^- _% r* F% H: ^! ~# bend& d F& \8 ^& Y- e3 d- j
$ F! X: }. c. O- n
to get-global-proportion
2 y. Y* Z$ ~* d# e' ]' H# Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)& w2 `8 i* M2 j0 c6 K
[set global-proportion 0]
# m" R' [; X+ i: Q[let i 0
+ Y, @$ D0 A7 N I: ^let sum-money 0/ T+ t9 U6 g; {2 }: Q6 x h3 M
while[ i < people]9 k) T# W& {7 t' @; O. x* q4 L
[8 c$ ^' F1 O& I2 i# w
if( length (item i
! K4 ^7 ^3 M% n" a" j4 [% c" ?* {8 c[trade-record-all] of customer) > 3 )
# S$ f9 q0 ~, J! y% _[
+ |* O t' q4 W' cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 K1 w( W& F3 C3 W; y
]& u2 U+ [8 `1 }$ g, l
]( |7 w$ h: H; z+ q
let j 0
9 }& U* O( z7 G& Z5 H. U" o: J; ulet note 0
3 F/ c. d- S8 t! H1 P$ H4 P/ i5 Uwhile[ j < people]: ~: Y) t" y0 A8 G6 `1 y) L
[7 \: Y% D" i7 ^" [+ B+ V
if( length (item i
% o# L7 P" y, H" _[trade-record-all] of customer) > 3 )
/ d; e/ O' Z- O# S: W+ v[
* T& J+ U' y- D# `+ w2 vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 T3 W* M, s+ E3 ?, o0 I/ C) X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 ?6 Y& \, F3 z6 w2 \4 n, S[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. `8 k4 M8 K1 [0 s; _]9 m6 N" J) L4 K
]
4 j. z/ z" }3 c+ _set global-proportion note
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a* q2 U% B8 F3 [7 V7 Send2 e+ D, N# i; p5 B7 E
@' T. z, c2 d0 D
to do-trade& m- L; x2 P/ o7 S( E4 f: B8 H9 d9 g
;;这个过程实际上是给双方作出评价的过程
+ t: Z# B; {( w2 y. c1 \0 Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! I- `& S$ v4 u/ e$ _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 r8 r$ j/ I+ I. H5 W0 B! B2 p
set trade-record-current lput(timer) trade-record-current
& C L9 g3 c: g3 B' }' ]6 t* H;;评价时间3 q4 |) p, M8 R$ m d/ @1 Y" R6 `
ask myself [
, Q" H2 t1 e* oupdate-local-reputation0 y# p) E! u4 Q6 L# G* f
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ \1 Y; S+ b" d1 n6 l$ h/ g) {2 ?4 h]
# ?4 K/ i; r$ X- x3 j jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) a; s3 r6 l8 n* n F;;将此次交易的记录加入到trade-record-one中( B: m, [& g3 a" ?4 o+ r1 q8 p% J0 e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& z' X7 J7 T6 e5 ?$ w! O0 S; b$ Olet note (item 2 trade-record-current )
! W: m9 z% j4 O2 S9 ?set trade-record-current
' Z% g' i# k" e( a(replace-item 2 trade-record-current (item 3 trade-record-current))5 ~1 V1 k" m7 M8 A- P) q! i* k" `7 u
set trade-record-current
* T" d s% {- u(replace-item 3 trade-record-current note)$ c9 s4 w& {- ]8 \& N; d4 D
6 I3 o# y; l7 a$ X* m1 g
; @' R" i: k6 x2 k
ask customer [( u9 {9 ~0 B& ]0 K
update-local-reputation: O, \; v9 I- B+ s }8 P
set trade-record-current l1 p5 j' v o, h( G; O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) W* g' j( J5 h! t @) [3 D; c]
! V" V4 x# f) H/ m1 T9 I6 Z7 v+ v8 h( [( r
$ l/ f' B ]0 M; r2 @' e. x2 Lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 i4 ]: n: S; n4 B1 c& {
# x6 M/ b6 x5 d! ]1 l3 i! C
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 ~( d& U( H1 v5 y/ j h;;将此次交易的记录加入到customer的trade-record-all中
& @6 J6 T" s4 F8 _! m2 aend
7 N# J3 o5 i. |/ {" o$ C t* F& x
to update-local-reputation( ~" T4 }* s9 [- T! I) s. T
set [trade-record-one-len] of myself length [trade-record-one] of myself
* O$ c' q! F( V. R# I1 U o4 s* ?! y7 Q
7 {- V8 d$ T& _( l. p$ O6 p
;;if [trade-record-one-len] of myself > 3
$ q) b ^3 m# ?/ t: n6 }update-neighbor-total
) ^9 m8 d- V/ w;;更新邻居节点的数目,在此进行
2 Y" j! S' m$ [; M5 Dlet i 3
7 @" a) h% g$ f& E% D: z2 ylet sum-time 0
1 T+ i) S1 @0 Xwhile[i < [trade-record-one-len] of myself]5 N5 [# v: v0 J8 N% z* u6 i2 s; G
[+ s4 {7 |; \7 D# Z( m* m# ] U% v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 b/ }6 n0 B# h, H: V7 ^
set i
' ]1 T( A1 z) \ K$ }- Z% ~: M( i + 1)
, ?! X: V- D+ s4 ?7 E, w]
$ V) x1 T9 q8 k0 ^# ?2 {let j 3( K9 I, {. e! Y* S7 ?( T& n$ @- w
let sum-money 04 o6 z' l; ~- Q* U' w% b+ o
while[j < [trade-record-one-len] of myself]
- \; H: W( _1 _[
) [) p( ]& ]8 s& sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
^% y V( k$ _' e0 jset j* f k W, m* e6 X" X/ A! d
( j + 1)
0 ~' B2 o1 `& \6 M7 Q) \$ O]/ k( {( P, K7 \8 k, G' M
let k 36 G# w G+ o5 J E) [
let power 0
) `, X* j2 b' u5 A- klet local 0
8 w" y1 ~: ~& j! Y3 Zwhile [k <[trade-record-one-len] of myself]
, x V c& v' r9 f[
' A6 y5 Q, Y. t6 }% f4 j$ nset 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)
) t2 w- w! _. ]set k (k + 1)
7 d0 e& H- u8 P/ `/ U4 H]& i5 k2 b p! K2 ^
set [local-reputation] of myself (local)6 p0 o3 ]- g7 c! `" _
end
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) I/ K1 p. F/ o3 g, X" pto update-neighbor-total- Y6 p m6 D8 L; h& V" ^8 `; ~% Q
! ~7 z: X8 W- B3 J) V: s9 L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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$ {( ]0 R) I7 u5 ?. y0 |6 e" b$ \8 y6 iend3 {% S6 A2 o8 H- t1 p% ~
" u7 d2 ?4 I. F! F+ ^to update-credibility-ijl
& O8 k& S' f: x% T: ^- M: Z! k
& b" h X$ U# B8 }$ X+ |;;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。
8 z. B/ s+ K% R4 ^let l 0/ n' n% s. r }/ O( p% N2 t$ c- F
while[ l < people ]3 E: q: I& Z4 S: C* D$ ~
;;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) A! [' R: }' L/ i t
[
/ M8 i2 h' L( O3 F! z3 Plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% n, B' a" O' |7 ?6 Kif (trade-record-one-j-l-len > 3)6 Y: O( M& v0 Y
[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
/ _0 P% ?! J. u( l3 Qlet i 3
4 u8 G/ H: c& ^ o8 {let sum-time 0
T1 U( _8 x3 h% jwhile[i < trade-record-one-len]
2 _" T) i8 K# G" H' V[
1 W, u. k: A" a5 T' Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" T" Z" Q; Z: L1 o" B0 L% y* Rset i1 b! A6 s) O8 q4 y
( i + 1)1 _( Z" u. `3 c! ]& f' ~
]
1 z5 h7 B4 B5 w2 K1 `5 k& H$ Llet credibility-i-j-l 0
* Q, S' U& }; ~& A5 m;;i评价(j对jl的评价)( x5 d7 T7 ~& C
let j 3
9 @$ a' ^% s S; p6 t6 p4 |let k 4
1 m( w0 ~2 N/ U! }while[j < trade-record-one-len]% ]! i) ^% o7 M3 J3 \7 J
[8 r8 D9 O" S# T' _3 F) F# p
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
" j3 c5 w! B) ]0 _) nset 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)
: p. v. O v/ tset j( F7 P P' r/ l) Z* X& |
( j + 1)
! c% o! u9 ~! o]
# D3 w7 k( I# `7 f; |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 ))
$ }: L5 r9 K7 S1 @& l$ Y9 X& K6 h6 _; U" l7 @# f) f, b
" E8 I* P7 d" ?1 n* x6 o
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 L) }' _/ m5 f4 [# @;;及时更新i对l的评价质量的评价' c( W8 E% v, f S% C; Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 X5 z f4 B3 w' b9 Z+ X
set l (l + 1)
9 j6 W; p" K8 t* l]: g8 n" V& t/ \9 |, G
end
j, q6 I, f; n8 ^& [! P' L
9 G* w$ k% F7 f9 a! g9 Tto update-credibility-list/ }/ e5 q- |- k; F
let i 0( \1 P$ k( ~$ g `( q; I
while[i < people]; O5 P Q( y! a1 H3 \2 K+ R
[9 ]+ ]9 K2 T# b3 X( u
let j 0
0 h9 S* `+ ~" r! w9 c& o4 Blet note 09 B0 I% F6 u# A \! W5 x9 ~, _
let k 0
% E# Y& {" S8 i7 L/ K4 l7 F# z;;计作出过评价的邻居节点的数目
" A8 ^$ L a Fwhile[j < people]. G {* Q+ U. r5 H0 l
[6 {" K4 T: [' b- L7 T/ G1 x- t
if (item j( [credibility] of turtle (i + 1)) != -1)
9 @, _9 f1 f @5 `, j. x+ j: m;;判断是否给本turtle的评价质量做出过评价的节点# F6 S/ p% u9 _4 F# k
[set note (note + item j ([credibility]of turtle (i + 1)))
6 }) V6 Z$ [6 \;;*(exp (-(people - 2)))/(people - 2))]0 c' S1 _- i/ Q( Q
set k (k + 1), o8 F& C0 ?8 z. Z% g1 [, ^
]+ {% L7 R+ b' _. z5 h, N* h
set j (j + 1)3 _, W0 h" Z( x- D6 d; i7 g% K
]
; c: d: E$ P1 V, e. Vset note (note *(exp (- (1 / k)))/ k)
, x* W3 k/ U9 l) \) ]* r K7 R! |$ lset credibility-list (replace-item i credibility-list note)& \3 F ^" w8 t! A
set i (i + 1)
* V' v. N* P' e+ z& q( ]]
6 y2 s( ]! A& G) A) ]end
/ ]1 ]- k4 ^4 v& J9 h$ F) d: D( c' Z8 ]& I& i1 U" M, M. F& b
to update-global-reputation-list$ \: s$ m7 a: D" n9 [% k
let j 03 Z& U$ J% P7 L# O7 U
while[j < people]
( | {: h6 r4 {/ ? p[
6 k$ l' ?) ~3 T4 Elet new 0- [+ u6 q6 \2 |) V- F
;;暂存新的一个全局声誉
6 t6 W, `8 Y6 f) k5 N. Tlet i 0) F0 T3 h, j: w) D1 J% H/ ^! [
let sum-money 03 k: h1 t/ M4 n! W
let credibility-money 0
2 {0 V1 u# `: Twhile [i < people]; Z* X% t% p8 ?4 r
[
2 u a2 n/ \# x7 b! \set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ A0 T, c$ Y1 z+ l2 P/ O! ^1 kset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 _( Z; w% U3 Z* m! z/ A1 w5 |2 _
set i (i + 1)3 w1 Z. Z- X, R3 A: h3 ?3 c
]& S1 q/ N: m, C, b3 H
let k 0
+ @& S% D5 E# c4 \let new1 0, |, a8 b2 _7 O" {9 k
while [k < people]; ^! U( B3 j4 P- g7 z3 h! ?
[( @9 m. z5 A. }/ A6 E
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)4 i( {! r0 n# v. ?3 j) G. R1 a5 |
set k (k + 1)" z( K2 y" r ^, H* `
]# D( z1 T- h7 d1 `' N6 C
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 Q8 t6 v% C ^
set global-reputation-list (replace-item j global-reputation-list new)
$ G2 o2 X0 C4 b. a; [set j (j + 1)
2 q4 d- {6 p, [ v1 R]. H" W8 A& h; k. }5 M
end
& h5 ^. c. a B+ [1 u- i. v4 `# Y. B( S- A
7 V* L# Y/ g: J; ?' [9 o# E8 b
( r9 j. x# q. u% P5 f3 J5 e. a
to get-color
1 d+ E9 d/ l& o8 }8 G3 F0 z2 ]" O) H$ Z1 _4 P( b0 @7 y, _$ _
set color blue
) w7 M5 u( d- H$ s+ X% d" B. q2 Jend
* d1 R- f6 S* g0 t) l3 o! Q2 X: A9 Z2 i4 Q" E, f/ ]' Q f5 y
to poll-class
' D, T2 e9 P6 N$ {7 H! C6 w* ^end" |, D* ^ w! J" b4 V9 t
! k) f# e; D) b8 }! Ito setup-plot1
+ |$ |9 Y7 c" H. b$ [8 y
2 T. {# u9 j5 iset-current-plot "Trends-of-Local-reputation"
0 c& W, G+ H3 O7 P$ x" a p, g
: S4 ?: Y4 j# iset-plot-x-range 0 xmax
; E; G1 U+ j( l4 d$ [0 M; v" @' Z M& A% a5 m
set-plot-y-range 0.0 ymax
, C; j6 U1 t9 ~9 Q3 Cend
. `8 N9 q t( _# r3 H
' l; E z1 j7 _4 T$ |to setup-plot2
0 A$ w, T& g0 E! o% P: y' W D% _) ]
set-current-plot "Trends-of-global-reputation"1 h, e/ L' K# S4 A- y
6 f, V/ G1 z8 y$ v9 d0 |3 b# v
set-plot-x-range 0 xmax
, j. C/ P+ ?6 x9 l, s+ Y. q2 s" E! v3 }& Y7 w
set-plot-y-range 0.0 ymax
& Y4 f2 ^& N% h# V! v' lend2 F M7 ~ y4 Z2 r
& _' M. c( X' o) \3 _' {to setup-plot3; L1 ^+ K1 \! ]6 v8 ]
- F) S3 t& u$ z3 u& }) Aset-current-plot "Trends-of-credibility"
- E1 y0 J9 x6 V- ]+ L+ S3 e* l: }2 a6 B# o. @
set-plot-x-range 0 xmax
& p* M" S# f2 j6 R5 ]9 c8 @. v' k p. m) Y
set-plot-y-range 0.0 ymax
# k+ i: [- P2 r! m/ Q( Q- kend
% q, u1 Z. L( {" u2 E% F# V0 f4 B2 P) f9 I T% w0 U
to do-plots3 d! M: X" |$ y) Y; }: u3 Z
set-current-plot "Trends-of-Local-reputation"
/ q' [: X [5 D0 p4 C$ Lset-current-plot-pen "Honest service"
6 q# w9 S# Y: m( f3 Rend9 y+ b4 Z: q6 p6 ?) |+ z: `8 \- l
8 j/ g# c: j% H# x3 R( w! p. i$ M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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