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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
/ a: \7 k4 T+ ?% C/ nglobals[. b; E1 k0 Y6 h
xmax( v: R% B9 B6 d) b2 Q8 T; L$ W' t
ymax. }- u& `; [" P4 F6 L) _: v
global-reputation-list1 [2 Q1 D0 Q. @& x5 N7 ]% {
, E& W) I6 }6 o2 F8 j0 p3 ?7 z0 `;;每一个turtle的全局声誉都存在此LIST中
b2 ]7 E, |) F9 k1 o* Jcredibility-list
/ w; c" c9 b5 N. U# D+ V;;每一个turtle的评价可信度
* D: @7 k) U& ]" ]* ~- Zhonest-service3 K V* M, T% W' Y4 j
unhonest-service
# ^+ M5 H4 r5 X* doscillation
( [# h5 B. \1 _9 Rrand-dynamic
; ~. c5 H3 c" ~3 e]4 {0 _) L, `( o5 A+ \ I
; e3 W$ ^2 b8 `# w2 o
turtles-own[
: B- g: p% A o7 Y4 c- [* Ktrade-record-all- D" Z- E9 @5 w' m' L+ s
;;a list of lists,由trade-record-one组成
7 s" b/ t2 w2 N$ C4 ptrade-record-one& h9 f. u6 ~0 R2 X" U; H, O
;;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 _ R8 T) y1 i& Y6 o& q! {# ~' y: @! v
;;[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]]
6 E1 c- {. Z5 v" a 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]
" E7 R4 }5 `- m2 ?! U+ p5 l' Ecredibility-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
" G% g1 B7 p. f; wneighbor-total6 v6 t1 J$ Q+ A( d/ I
;;记录该turtle的邻居节点的数目8 o6 N- o6 _ F# H& C
trade-time3 j+ r: @; R: I* A( F7 f
;;当前发生交易的turtle的交易时间3 ] t2 r8 N+ W1 H7 ]$ Z
appraise-give8 t: C0 V# w7 ^
;;当前发生交易时给出的评价
1 }' q; p$ ] lappraise-receive# ~' p# x& m; ?7 v; j% ~
;;当前发生交易时收到的评价& l I& Q" m P" V/ Y9 \
appraise-time
0 g) {# }5 {" M;;当前发生交易时的评价时间1 S: {* O6 F) G( m c! L& v
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 ^5 ^/ \/ E% `5 f" _; l, ?& z
trade-times-total
, O& M5 u, v# _; c$ p3 m0 b;;与当前turtle的交易总次数 j, s4 K% D/ m5 G/ P9 y
trade-money-total
' d( n- K) N+ m;;与当前turtle的交易总金额$ T$ j1 u, O7 q1 _0 F( W9 g
local-reputation
/ w% X/ N7 W& a/ A/ K5 C( Hglobal-reputation" c4 S1 z6 T# l& ]" K% M! Y3 j4 H$ {
credibility0 F% v6 w* I$ c7 g% ]7 H/ s3 V$ N
;;评价可信度,每次交易后都需要更新
" R: j e& Q# c9 O/ Scredibility-all
6 x+ ^& E$ r1 [' {; E1 G$ B4 Z;;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
- x: x& w1 d5 }" ~, B" w. l6 Z7 ~* h
;;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
- K5 r# R( Z) u8 X+ A, kcredibility-one
' q3 U) _2 S# ]* b- y1 j;;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
9 J! {* B+ K" pglobal-proportion* n- a# k5 U1 p4 v* X+ B
customer
' Z$ J# Q2 G/ ]6 b# U' Tcustomer-no O% u' v. h8 t6 U* ?1 i7 a
trust-ok" c r- Z* {1 ~, [5 K
trade-record-one-len;;trade-record-one的长度
6 |' m; B% p& P3 o$ X]
1 B! B3 g/ g5 w; { y
( i- q* N- j0 \# y O C;;setup procedure
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to setup
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ca
7 O S6 S' K7 u; C
: n+ s1 w, k8 q8 K( B Dinitialize-settings% y! H4 ]4 |" g+ X
* b3 m* D2 r9 ^2 fcrt people [setup-turtles]
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reset-timer
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) n8 _; D. c5 s6 a6 m/ L( hpoll-class% G' f. e4 d/ }+ P o, I- A# j
7 `+ T1 S. {! a% asetup-plots' `4 z6 r7 o8 l- d3 ~
2 _; X' @" ~1 \3 `: [
do-plots
8 a* \* h `% u$ ]1 I2 h' N4 ?8 cend
4 X& j, b2 v) B6 h$ h) m/ Y3 W. I4 m1 I* h
to initialize-settings# F7 u8 E. w& Z! w% J/ D
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set global-reputation-list []% T& Z9 F. Z! S) H
( w. ?" A/ t5 n% _* a5 gset credibility-list n-values people [0.5]: v; G$ u+ I6 [& A) {1 X& ?. Z
4 ]. i. G2 c4 X* D2 @) pset honest-service 0
: R5 s n; g: x- Q5 x
/ {& Z0 J6 X% f" R% ~: Eset unhonest-service 0
0 J9 k" [0 T" ?5 m* y+ {' S
+ z% J. P' ]% J0 }: \3 H7 xset oscillation 0
A% l! H& ^& R- g' T7 h4 ?, s
U; h3 ?+ ]7 K. [set rand-dynamic 0
, E1 [6 V# f( d5 ~) kend
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1 k8 S* t d, P2 dto setup-turtles
) l7 `6 |6 g {& Eset shape "person"
: X3 q( M) `, p6 W0 T# u' l9 J/ psetxy random-xcor random-ycor# ~- m0 L, t/ }
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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5 }0 n+ @) i2 ~' ]8 T4 @& gset trade-record-current []; ], j0 x4 L0 H& _( X, ]
set credibility-receive [], s+ u0 k; `+ S
set local-reputation 0.5- O; d! u5 U! }) T3 k/ o
set neighbor-total 00 b+ V K' T/ G$ y4 d
set trade-times-total 09 G- d2 y4 k- M- ~/ E! Z7 w
set trade-money-total 06 S9 f1 t! x! w
set customer nobody3 A |& C2 J$ O% N8 O V2 ]0 @# c
set credibility-all n-values people [creat-credibility]( c* s; s: J' U7 V. o
set credibility n-values people [-1]
D$ q* t o) ?+ Aget-color$ m, h2 Y, M* t3 X
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end
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3 G# r5 ]; [% Rto-report creat-credibility
" ^% w) `0 u7 E5 b4 _1 e9 nreport n-values people [0.5]
- ]7 ~3 l- o' j; X# lend7 q7 M7 ?* [* q" N3 O/ d. {9 E
( n5 R, {- o8 P, v* Nto setup-plots6 z* U8 s5 O N
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set xmax 305 E9 A( \% Z6 V7 M7 |6 k
+ I; N9 ?# }4 ~+ Q+ m
set ymax 1.0
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clear-all-plots
+ |" H# A5 N% K1 g& N3 m# k g9 u& D3 k) a5 C S: [7 x% B
setup-plot1
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setup-plot23 P7 k @/ P# X' {5 q
6 o2 s) B$ T& X: Wsetup-plot3/ J. Z0 u4 F( J& I3 e! w$ t* D% C! M
end
+ z" R8 \, T" ^( `
) p3 C( U' c. v* w3 P8 };;run time procedures" l3 b& X* ]5 u- R1 x7 }
6 k' c* o4 o9 X8 ~& Ato go
( }6 T, t) U; \/ B$ n, T! H$ l5 h9 }3 Y O* m. v$ S3 q
ask turtles [do-business]: y0 ~* t2 ~2 X$ ?1 I1 g
end
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to do-business ! B G! G: i; _$ `3 F" m
+ f) a7 d! T( Y W c6 d
1 K* Q) a. B8 i. \rt random 360
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w* M$ r1 H' {% {0 T8 {' c4 tfd 1
3 F7 I5 L# d4 p% h b; i1 \$ {6 n' A* h$ A6 h- s
ifelse(other turtles-here != nobody)[
/ \ q% U8 x1 L- ~9 M; z ]" h, a2 K* f0 D% [* \7 d- J1 m3 {+ O
set customer one-of other turtles-here' l7 x4 Q& y1 Y. E: \
. T) y* `* _3 @) ?' s, o& @;; set [customer] of customer myself. m$ k* R0 o! W! m) L
9 W, S8 w* e u7 _* R- D5 Z; k4 X0 eset [trade-record-one] of self item (([who] of customer) - 1)8 A( Y; @) r( O5 Q
[trade-record-all]of self
& z5 u; P/ b# T" i! \( J$ b;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self }) _' R# o- [) _
" c0 H4 N+ m. T9 b7 U: k$ k
set [trade-record-one] of customer item (([who] of self) - 1)- n! C2 {5 H9 }& _4 b9 `
[trade-record-all]of customer& V: m2 p1 \/ G$ X
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set [trade-record-one-len] of self length [trade-record-one] of self
& v+ |* Q4 g$ [! V/ S0 Z
. H0 Z7 ~2 ^) bset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]; l+ i8 ^" \ `. R+ s) h
;;先求i对j的信任度
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9 g+ E* a! u( j; D# c# P Fif ([trust-ok] of self)
5 z: Z8 R3 r9 r6 ^0 @: y5 I;;根据i对j的信任度来决定是否与j进行交易[* E6 E& Q4 Z- m" p5 V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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& v# V* R3 l9 O+ x
do-trade
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update-credibility-ijl
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$ H6 C( ]1 [+ nupdate-credibility-list
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$ J/ i4 l( h" ?/ s; W0 ~, Mupdate-global-reputation-list
# S8 k2 z$ D3 B- b v2 t+ O6 ?& w% F; q% a4 i
poll-class
{, ]# j4 {1 l! M9 u3 g+ o$ y: v
4 k) o) A9 [% Jget-color( r# u4 M# g+ F! Q
! M$ {7 {1 f: b4 h6 |6 [5 Q8 Z, Z]]% [8 p8 K2 ^* U8 O& `" I
, W+ S6 S3 _ q; N;;如果所得的信任度满足条件,则进行交易
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" E/ G2 x v3 C% U# x- T[0 d* B/ S$ @- u$ ` i
% X- G1 C5 X* L# x$ G( P, |" s5 O
rt random 360! `5 D, [/ a6 v, ^1 R( J
2 d# M& G9 ^3 W* V0 n; _) efd 13 k' {" ^9 F, @# P2 }
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( t- w* A4 b( O |end
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4 v- I0 Z* z; m1 Nto do-trust 5 j1 W, N7 f- j7 u& `
set trust-ok False
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+ Z" [9 O: b8 W/ g( j
% E5 e2 c! x, U5 J* \$ wlet max-trade-times 0
! n* D! M' N+ c4 q6 ?, G! zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; ~9 |) S; M5 J1 M: S8 Xlet max-trade-money 0" N: f0 O3 w* T2 d' L9 l& t, v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 w: q) C/ t$ ?$ V( i" O
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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+ N. G2 P4 h6 b3 P: [# Z- {$ X- V8 d+ F0 _8 Q1 ?3 x- {
get-global-proportion" ^* q ` ~6 z% t: G- G" C% `
let trust-value
4 D% W$ `' e" }& t) O4 K1 [0 X/ Alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)5 U1 o. b3 L9 e! |1 q; Q
if(trust-value > trade-trust-value)3 P6 R! e2 `. Z% s. Z# ?6 J2 J- G' D
[set trust-ok true]8 h; Y! g# o+ }) I* a6 p0 h9 ?
end, \; r" v; Z, Q3 i% o
# w& t" i. c9 f2 G3 I; Fto get-global-proportion9 ]% x3 A# J$ \8 d5 N5 [2 X Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( G4 ~/ B! I9 Q {8 T8 d- D! \
[set global-proportion 0]: ~4 D: G. r0 ~. i- W2 J
[let i 0: ?1 b# C1 d+ k0 R
let sum-money 0
7 o) W4 T7 K7 [) V8 L. w: g4 A, Ewhile[ i < people]- \! w4 ^+ h% k
[
' Y4 |# O! X% W. Q9 z+ uif( length (item i* I" ?" _* w3 l' N" ?$ z! v1 b- _
[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- d" d2 c3 U; s& N]- W- o+ X5 w; D( H. F9 W8 r
]
9 j2 @; P+ l1 y4 Elet j 0, ~6 @# J$ _! |
let note 0, G/ J% {6 {) f9 S& C- W
while[ j < people]
9 q* p- P7 C+ Q5 d o9 O! E[
1 U# c T+ S6 K# Z: m, I1 aif( length (item i0 n7 `3 Q* Y9 W0 f8 k* G
[trade-record-all] of customer) > 3 )* c. H: v* V0 s* z# K' N
[
) h& R* ]# y ~. f' Y7 W+ Cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 u. g( m3 m* c" g: I. i3 p" @[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, A' _2 M1 z' K2 P* G6 a6 w( Y; u( l[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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]) j: ?/ W# }8 ~! V# C+ h5 V5 Y
set global-proportion note- C% z( r5 N1 }1 O7 y1 Q
]
' ^* a) n8 N8 S. g* U0 Y tend/ H* [0 X" N2 Y; e0 w
8 l7 R) @' f; L6 w( g" l7 q) [to do-trade
2 R6 G: h. H8 C8 s4 |& d' C" f/ m% q2 s;;这个过程实际上是给双方作出评价的过程 B2 }& a. ~" O. t+ ]& {9 }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 S5 G( ^( w0 `% D# I4 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 ^& a/ S% S9 Y. \8 i Zset trade-record-current lput(timer) trade-record-current
5 _/ i" w5 |+ K( a;;评价时间
3 X9 I5 ?; S" n5 Q0 H+ L9 Oask myself [& t; \" _6 G3 T4 ?- B
update-local-reputation$ O$ V# {# c9 G1 p2 \ E/ v$ b
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ b' v7 n1 ?! S# t4 E, w8 Y;;将此次交易的记录加入到trade-record-one中8 r( b5 @% k% q) d' A
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
L& A1 w" q/ Y/ _' ^let note (item 2 trade-record-current )
5 O3 J6 m( Z1 ^set trade-record-current
# u4 t& [" @6 @. Q(replace-item 2 trade-record-current (item 3 trade-record-current))
# O0 J" U' b5 s3 \set trade-record-current
: n; y3 ~& x& ?. V- ^3 D(replace-item 3 trade-record-current note)
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\/ f# Z' Y5 g' B- R$ Wask customer [7 g4 t4 @. ~# a$ z5 ~
update-local-reputation0 z5 f. G; i2 e& B
set trade-record-current- {% u) f( L7 G, A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & B! x' g! ^) X. Z; b4 r. E
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+ M6 b! G' E# H$ d+ ~# @
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! {: w6 k6 X2 a t- G$ l/ M, u {2 v( A" U0 |& x
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ }' d* ~( H( s, O' e. v4 i7 p
;;将此次交易的记录加入到customer的trade-record-all中
8 p1 [; K5 {# v; H8 t3 ?% \# eend
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to update-local-reputation
& B1 ?# d+ }. n/ l$ w0 ]! Wset [trade-record-one-len] of myself length [trade-record-one] of myself& ]1 z7 H- f7 ]9 b9 x
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8 U% ~7 C; T4 P; [* _: O
;;if [trade-record-one-len] of myself > 3
2 L5 x4 L% T9 `. h* `7 \update-neighbor-total9 M, j% _+ Z( d0 m) F
;;更新邻居节点的数目,在此进行 q5 p$ G( T5 d$ t( d
let i 3
/ Z2 C. G Z3 ]( i9 D, i9 j9 Tlet sum-time 0
* d" u. [- }+ ywhile[i < [trade-record-one-len] of myself]' d p0 b5 \' S5 y
[5 ?! T( x/ c) y; t8 E
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ }4 B* a T s9 E
set i8 U2 p6 G" w, Y, l/ H
( i + 1)) j! O( U3 Z5 c0 P3 p3 L
]( s4 h7 _4 H' z1 `! h
let j 3
2 z) g/ _8 q/ I# ulet sum-money 0
$ y7 u- U7 V S3 {. Xwhile[j < [trade-record-one-len] of myself]
2 E- ]9 `- L, Z) D) e[
; @, S+ R! C2 ?, i0 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)) g; q# q- r* J% \1 W& o p
set j; }# \: X+ Q; o; ~7 l: `
( j + 1)
3 a7 v' D, z. d0 y; L8 S6 V6 ~]
/ F9 u$ a# m) J3 [) P! a& Llet k 3$ L9 D5 b' o9 v! t
let power 0
, ]4 r3 g: b; c2 F' H5 h8 |let local 0
( M% c- B9 [0 u7 v6 ]while [k <[trade-record-one-len] of myself]
6 ~% {; c. f5 o[
# ?1 L( N. I2 P& B5 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) : ~+ f& a; T$ \7 L5 w7 y7 p$ s
set k (k + 1)
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& ]. M$ e& Z9 Zset [local-reputation] of myself (local)5 O3 V, n. [5 D! i5 @) v% T
end5 _. Z5 I* z# o3 T4 }0 ^) f1 i( @: x
" m: w- n' ]& D) M" Gto update-neighbor-total% N [( c2 o+ n5 n5 }' z
4 d0 X+ ~2 N/ [+ Pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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0 G! {- b( a8 |5 o7 O" s h5 Z# J- a( F# d8 E$ n5 N+ `5 B
end. E# g+ `7 ~* y2 w: C# M# m
; g7 f+ ^+ _5 x" lto 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。
. q9 j; Y, r* ^: p1 I1 N4 E* Tlet l 0' s! V: d: z+ P# O: @; B
while[ l < people ]
m8 v/ Z0 W* i0 {; n2 p+ C;;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+ Q2 i' ]0 Z. M. G h2 w
[
) s) }6 j5 e2 _; g! R4 O7 Rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) N6 B0 D Y6 n) t3 S i! n
if (trade-record-one-j-l-len > 3)9 g1 L' L, g L- Q; H' ~
[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
# P* Y. a% E/ T& {let i 3- v2 P0 c; t9 Y6 Q. \1 S# }
let sum-time 0% b4 N; L0 a; m& o
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! Q) x5 t, ]# o% k4 L! wset i
/ B3 Z- z1 o$ _8 P7 h( i + 1)
/ r4 ^# Z) ]# y4 } @]
- J$ k$ R5 h3 k8 K( g0 A) P/ L! `let credibility-i-j-l 0
- F# G1 }0 x \! K; O$ I" m;;i评价(j对jl的评价)1 n0 Z) K, P2 N5 M. L% w, h
let j 32 k0 Z7 N+ n, T4 X9 Q8 |
let k 46 t+ v" i9 h+ Z" ^
while[j < trade-record-one-len]8 w) I/ i$ A# }) m) x1 x
[
2 \: f% \6 I; swhile [((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9 r5 N Y) X/ ?! X% ^
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; D! t5 ~; uset j. D/ j* q$ x2 O8 [- B
( j + 1)1 y9 V) B# g! x) M7 f8 A5 J7 e: l3 z
]
- o& N4 y& U: s: J; v2 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 ))
0 J b; P( A& D
/ X/ N9 S# d: O9 }: w' B0 p
) f( e' W1 Z& b, klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& c% `' Q6 S+ X& P( o;;及时更新i对l的评价质量的评价 ?$ C( j9 ~3 f) V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 ^$ Q- L5 {2 _+ Q! ?1 W i+ Oset l (l + 1)
+ C" k% L$ ^5 H' R" D]
; p7 p* D2 L# a1 O/ X Wend0 Y1 Z8 l; S! }1 C
8 [0 f* @- s$ |8 A! H7 ~to update-credibility-list/ e1 m6 E n8 v/ s
let i 0
# W( C* ?4 } Q8 w. B; e% Mwhile[i < people]5 O# I# c0 _8 m! P8 N
[
6 m& C7 |: @: C ?+ |4 Y9 Wlet j 03 x. k' M# \3 H7 N! p' {) k4 K
let note 0
3 W, l7 ^7 p2 I+ y5 glet k 0
6 U$ e: o: R9 }- G" Z;;计作出过评价的邻居节点的数目
- f7 N0 S2 F W- D. b% }while[j < people]9 P: \/ _* I" X6 j9 c5 {$ @6 {9 `
[
6 j, K3 {. r' `8 t+ Z/ U+ V; d4 Hif (item j( [credibility] of turtle (i + 1)) != -1)
4 v5 H! k6 B& _- R6 n1 q;;判断是否给本turtle的评价质量做出过评价的节点
, m2 |/ X; S j* M[set note (note + item j ([credibility]of turtle (i + 1)))
1 `' v) T+ d0 m. f2 Q; R7 D: J;;*(exp (-(people - 2)))/(people - 2))]: k% y! d0 l" g2 m/ `
set k (k + 1)
, A+ \; {' L. y0 r( n% [' m]/ c# a A. v+ Y4 x+ g# n( w6 N# D- ]
set j (j + 1)
2 D/ P M7 _% Q/ Q( G" n: O]
: | p, O( C! N, \6 nset note (note *(exp (- (1 / k)))/ k)
& v1 f* f5 u5 y* \. k$ C: Eset credibility-list (replace-item i credibility-list note)
0 P1 \8 ^% Q' Q! H! }set i (i + 1)
* L3 |: x# f( d5 [6 Z+ N/ K]; T9 ?7 l0 T$ F0 K% ^2 ~; R
end) \. D- X9 H! R/ g* Q
6 Z" z, O* _( k
to update-global-reputation-list
! b. l* B. L. M, |) tlet j 0
% B( F) \: \( z/ E& L/ p" s3 c8 gwhile[j < people] e5 D( t5 X2 \! l
[
& u- v+ i9 ~& Wlet new 0
5 m7 G8 L6 l0 v, @& {! }$ l7 E' W7 B;;暂存新的一个全局声誉
/ i" P# D/ O0 V" ? A) R) H5 M4 Xlet i 0 I6 P0 E6 G/ R/ X) B0 k
let sum-money 0( a% s7 B% v. b$ C' N2 H- R1 ]
let credibility-money 0
9 r [4 j+ H1 N7 Ewhile [i < people]
) x' d) M& P0 l2 i# ?( l$ ?% a[
: q/ J) I) b% sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 r9 e/ L5 V* M+ Y1 V- @! Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" \) E4 [) E" h% a- |- _6 b6 ?4 y% h/ Wset i (i + 1)
4 T# {' J# |) D! ^" C0 B8 |]
+ v- d- n# J/ d2 Z9 ?' elet k 05 G0 Y# c! c3 N% i' x9 |
let new1 0
2 N5 B! X6 i: J. ~% M1 Vwhile [k < people]3 y( ^, b5 L5 m' ~/ w
[
7 A! B% J/ \2 H" Iset 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)/ t7 I2 z* L! h# l8 U7 B
set k (k + 1)
9 L2 M0 C) h4 F P. Q4 L$ D]
' q4 ?3 E" e/ s4 f9 j7 U0 Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 V! M N2 X5 N- e
set global-reputation-list (replace-item j global-reputation-list new)8 M1 K o5 I' z2 ^1 M( d
set j (j + 1)& o8 r5 W/ ^" I9 O) s. K+ I9 W
]
9 ]4 j# r" [& y) I* y, \0 ]end
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9 k/ A0 ?9 w# G1 G6 k5 |
. |9 d* G9 N, @) X( Z3 P! _to get-color
4 d" m4 Q7 O2 k9 P5 F; {
4 ~8 _& X4 N8 J2 C6 K4 aset color blue8 T+ `& V* K' n* ~; s" f8 Y
end( |( \& ]4 W* Y0 ?+ c
1 a* W0 m: P" l. P0 |8 \$ D
to poll-class
# Y2 p" Y, `; V* m% R- jend
, @( P1 N, J& S8 m* F% ~
7 P6 f3 P( P8 |& t Q4 w( ^9 N2 Lto setup-plot1
2 Z# l0 S T1 q2 g/ s) T+ `
J8 |. g& j* k9 gset-current-plot "Trends-of-Local-reputation". \3 e! w( h' w/ T. L( q" B* E! l
& w& P @& k5 F) xset-plot-x-range 0 xmax7 r' u% a5 }3 g
! V# @+ i3 _& K; ` d$ s" qset-plot-y-range 0.0 ymax$ N, D1 a O2 d6 \
end5 C) O' y+ l! l) u' K9 ]
# l+ T( y& x8 K: w$ s6 n0 i9 L; W4 i
to setup-plot2( ~! X/ y y7 Z7 u
+ b! g+ i4 {8 |( wset-current-plot "Trends-of-global-reputation"4 M) A( W( x0 `6 ?. B, \) e7 o& J3 l
; j8 K) j% I# Z0 H; Pset-plot-x-range 0 xmax
7 }7 o6 Q4 W' A- N; H$ O! {. K: b% [3 q$ ?
set-plot-y-range 0.0 ymax
1 q" x/ i) Y' o3 ^$ xend+ X- G+ i- R6 v! V L2 n# p1 D
3 k* t+ _ J# I0 M1 C; X7 ?$ e& Rto setup-plot3
4 F2 ]4 f/ ?0 O0 V w H3 c- E- T6 Z1 x0 ^
set-current-plot "Trends-of-credibility"
9 w" ?* k" K: j0 s# H# B# Z. s0 @5 |/ x6 I% a' d3 B5 O
set-plot-x-range 0 xmax
; y7 d3 d1 D+ w2 Y
S; {( D3 N& x" Aset-plot-y-range 0.0 ymax% \+ g& s9 p. l% X& S! m5 q
end
% N% n: c) o" I# G5 M2 |( k8 R! Z9 d
; q# h0 \3 S2 ]. vto do-plots0 H7 b# ~! C( p V
set-current-plot "Trends-of-Local-reputation"7 a% K0 B! I, r' W! Y; A9 |" [* q
set-current-plot-pen "Honest service"
8 B6 F4 {6 b$ m! m8 Cend
0 ^7 _7 R3 j( O, h' F( Z
1 t8 D- l. s) J9 [3 x. d2 r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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