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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
+ l% W- k3 C% F- P- ^' D: Mglobals[
$ J G! W: i% }; D" S- exmax
, O, y1 G3 N! k! A8 Y c8 H8 I7 ]ymax4 G2 r$ \( k3 Z' o6 @
global-reputation-list
* w# I' P! y. K9 u
4 K5 _. v; v, F& O' l;;每一个turtle的全局声誉都存在此LIST中
4 G3 h& b% ^3 M- }/ d% _1 Rcredibility-list
% y/ n* }- W& Z" Y2 M;;每一个turtle的评价可信度
$ O7 y' Z; V4 T6 a) d* a# Rhonest-service5 k! M; Y! N0 b: e
unhonest-service
5 o( {' R" w. m, _oscillation
3 {+ G; W! X0 M: u9 krand-dynamic& A- Q2 c& ]/ I9 j: e) q
]
* Q& ~- H1 c) S! a) d( I. F" j4 [
7 |) d$ N) Y, r% pturtles-own[+ L) B% A+ @0 T
trade-record-all
) K4 E( J4 o' D;;a list of lists,由trade-record-one组成: {2 J* a) \' a; G
trade-record-one
& F8 ]$ u$ }# `0 Q# f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
q6 r4 N( t4 s P
# N0 a3 W% ~6 n4 A4 {0 j8 i4 m;;[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]]# \' x7 T) J# \+ v- Y) Q
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]- y* g, z* X: H% {- o; W/ e9 I. U
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
. m2 k# |! b- I( m5 u ~: wneighbor-total
- v. @$ i) P* w7 z& ~8 [" m3 p;;记录该turtle的邻居节点的数目! ]; l7 F0 Q# v3 S' W! a* B
trade-time
0 h) d- y+ R8 `& i;;当前发生交易的turtle的交易时间6 X5 V- q5 I4 }0 c
appraise-give
5 a% K5 P+ f' q7 W+ \! a;;当前发生交易时给出的评价
8 [4 c. V1 {; C* g4 Jappraise-receive r6 Y# S5 D( ^
;;当前发生交易时收到的评价3 L: \+ ^8 Z6 W# N2 K
appraise-time
, J0 q7 a& |2 G0 k;;当前发生交易时的评价时间
+ _5 }4 X, Z; dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: `; g$ p# d3 d8 etrade-times-total
6 @8 x: k( H& d$ E" };;与当前turtle的交易总次数" X3 B- y2 t2 o9 ? Z: R9 g
trade-money-total
' V* c8 {5 T o1 A;;与当前turtle的交易总金额9 |9 S8 Z4 Z' _. t
local-reputation
# v" m) y2 I. rglobal-reputation& E [' s3 ]. M r3 G
credibility, K7 F7 u( x8 u0 N: J
;;评价可信度,每次交易后都需要更新9 A2 D' b6 e* \7 m- w( g; v- X0 x
credibility-all
* ]/ V5 p: E% s J1 I1 S: ?* e4 d;;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
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8 q/ [/ ]3 p$ W7 S& k;;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
E7 |2 W8 t3 m: Jcredibility-one: Q6 P! g$ X( B( O
;;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
+ T& @. @" H! E& fglobal-proportion8 _; }, j; v* b6 ]. _# [' k3 \
customer& X* [5 T! ~" {2 \1 [
customer-no
/ E$ l( ?+ U3 \# x0 Ytrust-ok
7 c' ^, j0 N" r; k. P3 W) U8 x" Htrade-record-one-len;;trade-record-one的长度. M2 p. n8 j4 |- Y7 J, Q
]" R+ ` D& k4 B7 j/ z- m
) Z9 w: ^: f6 Y" u: U) p;;setup procedure
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; S+ u) J" r6 o: o4 B+ W' y7 lto setup2 D* X+ \, p9 g9 f8 ~
7 m9 H' @! l. @5 w. P. H7 J8 \ca
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initialize-settings
: a/ m2 K" ]' }: P- M& b4 k8 V& S7 e# s8 [0 [
crt people [setup-turtles]
$ q6 [" n3 |( u' A
& g8 J7 H$ R- J: e# vreset-timer" K. ?( ~& R2 Q* P' u6 }
/ X, L. H3 ~' m1 t: o! l1 O" d& Hpoll-class
- o5 L) n" F" n( x/ h! \# c+ q- G8 N4 B
setup-plots
$ r3 r# ?3 S4 K M- S4 H3 T, k, j, H& T+ g8 Z+ y* B! }
do-plots+ q9 c" m8 }% f
end0 Y1 s# }: c) r! I2 N3 p+ G
7 `" B% F1 p8 l+ F$ y+ M$ j' z3 `to initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]; ?' e; [: i( e+ ^
3 z/ k5 m, `: A; O* P; yset honest-service 0
( V' ]$ S8 Q1 h7 n
# M. w( {% ?" n, M6 S0 @* i. ]- Y1 } bset unhonest-service 0
; [ }/ n3 L M! |( y2 K7 X5 w$ N8 P% i0 I
set oscillation 0
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" P% d8 p6 ]0 N, d" g; q/ A/ fset rand-dynamic 0( D- ~" L: ^' ]
end
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to setup-turtles
: |) g# G- i. J3 _set shape "person"
5 k) b8 d& s' Fsetxy random-xcor random-ycor
% k: I, n& X) T. `" O# Q! U6 x% M) {set trade-record-one []
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i" C7 T D7 P6 n6 r. R: N! Y: l- Kset trade-record-all n-values people [(list (? + 1) 0 0)] * s% q, A. h# f! g# o0 }+ Y
% v& f1 v2 I" w! f: c# j* p
set trade-record-current []# G; d- p* ^ ]' S& W6 v" Q
set credibility-receive []% n9 F1 h6 i# Y0 q. x" o1 o
set local-reputation 0.5
# ]! O! i' E0 H: G# Vset neighbor-total 0
* `9 C* M/ b( p: N" ~3 Eset trade-times-total 0
' ?$ B4 c/ v4 X% Y7 rset trade-money-total 0
* ]7 E0 _7 T2 N4 F I6 W+ J# Tset customer nobody- b) f9 g" U# @5 Y" j! v' q! r
set credibility-all n-values people [creat-credibility]
# n( w1 n! f0 a: Z( [- H( x+ cset credibility n-values people [-1]" s3 \( W2 o$ O" ]& `- A. r
get-color8 R' m) f$ V' [# H6 I! N0 i) h
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end
8 p$ y: j% ^' ^4 I& b" A
; j+ [0 e% {6 y, w* D! E M$ Ato-report creat-credibility
2 o- O" x/ |* Rreport n-values people [0.5]' N, }) V& ?8 f
end
* [* F! ]& X5 Y) j- K- ^/ j; G% J. I( ~0 b, y ^, z+ {
to setup-plots
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set xmax 305 X1 I) q' Y* I
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set ymax 1.04 a: h( S) V# w1 @% ~9 V0 U, |
% j, N/ {% h' Q5 K
clear-all-plots
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+ m+ o; k% D8 O: i4 U) _( W, Ssetup-plot17 c/ p. z" \+ x- }8 N
' {; Z6 U: _& e+ I" `setup-plot2) g" I/ _- J8 o4 u3 T
4 \1 j0 M2 i) Msetup-plot3( L" _) F. h: z% Z6 d
end
: ]/ i+ s# ?' |, E, {% W# i0 ]* y' [. y! k# b& R% z
;;run time procedures' g8 I# y' w4 Q
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to go) d/ f$ [9 n. g, b' F) M# v+ X. e1 s
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ask turtles [do-business]
: a: L) H* z. E2 O) i. I( M. {- ~end" _& ?6 V: z4 q
# f4 }0 T3 f3 Z, B) A. q/ B) w1 Hto do-business
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. Y) T8 l% F2 u# `( G zrt random 3604 _% d+ n& u5 K! @# q
, `3 m' O/ b% n5 c$ ~
fd 10 l& x; P$ r8 L+ U
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ifelse(other turtles-here != nobody)[
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. E3 p# E! T, j% T% W4 n/ l* Z7 }set customer one-of other turtles-here" t4 \7 b4 J) t" S) X6 ]1 J7 D% d
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;; set [customer] of customer myself# [! }9 ]% ]* R! V
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set [trade-record-one] of self item (([who] of customer) - 1)' v- c; _/ ?2 F" k
[trade-record-all]of self6 {( m) N/ Z' i+ i! t
;;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)0 c/ O1 ?8 K0 b' l5 Y# L
[trade-record-all]of customer
b* F) a9 O% S
4 O) e9 C. J) k) F; j, W8 t# `set [trade-record-one-len] of self length [trade-record-one] of self, l3 E/ \" }; o# N# d2 Y, h9 S. j
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
, ^' c* {& G6 U! z+ z; n;;先求i对j的信任度 v1 x4 j) d' ?
6 \% |8 n0 Q3 g6 c, o% d& f" J8 v8 @
if ([trust-ok] of self)
. S) {& W/ h, w0 y9 j2 k/ D;;根据i对j的信任度来决定是否与j进行交易[
; D. W* g& P2 R! ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 F: B) j* u4 b
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+ A- v, [$ \2 v0 K; Tdo-trade; y& g5 ]/ v2 @; `, B2 \
o. x( [7 _6 a6 L4 V% t
update-credibility-ijl
; o$ ?, S0 b! ]/ s) b
4 T2 q/ t6 i, K. T9 N7 `update-credibility-list
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: T, w; M' O. ]: T( I0 {3 O' G4 c1 Y* R) z O7 G6 \
update-global-reputation-list
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poll-class
. `$ {$ d6 a, I& V# V6 k: h
$ R5 A+ q4 s3 ?6 {2 o/ tget-color" B/ X% U& b L2 C1 m9 A
; r8 U+ [6 ?7 m- ?+ V
]]7 | ` C& n# u. R5 w
" f, a- g( k# h3 ?;;如果所得的信任度满足条件,则进行交易& y0 T$ j$ ]# r2 E' p4 P+ }5 |% _: w
3 @/ k, ] y# a: `7 x1 z" F4 q[! ~/ U+ J/ m' q
% K8 _8 u. o! @" z1 J W8 G( ^
rt random 360- F: `) ~: E6 f; v
# O# E N' a. D, K; N3 H; F2 rfd 1
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% d x' r( M8 D4 d. L5 Q; @* X]# O. Z5 Y, q8 g! y0 Z; m4 w! V
7 M, o) U$ s8 @. @3 M \end
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to do-trust
5 r' d- E# p$ W0 C! L0 uset trust-ok False4 X+ G7 x, `2 s- W
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8 \4 L- y J9 g- Z0 \1 ^' Blet max-trade-times 0% ^/ a/ A" b/ t7 U' D0 n4 n
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& C, ^* w) e) z
let max-trade-money 0
% a' R* i( w. @% I9 V6 {foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' q& K/ q/ q0 t: J% ]6 d/ o% E
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 _% o0 M }" Y2 X+ a
% T/ ?: Q6 K: B
0 ]8 k! A. B+ nget-global-proportion
& Q) v9 k8 o5 q; ~/ @let trust-value
( T# i( p- t4 B7 P' Vlocal-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 K, A" n: ~" [2 r O* E S
if(trust-value > trade-trust-value)
6 @( b% Y. ~- D/ j( A[set trust-ok true] E3 g# @ h x6 p
end# w R Y) b' s5 _
% i" _# |7 J; R0 Z- x+ u
to get-global-proportion: r' `7 J V0 S) ], k2 ^7 K
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 U$ s! V; S+ ]% s& d0 ^( H[set global-proportion 0]( R: K/ F {+ Y- A; N! J
[let i 0: d/ ?, Z, t5 Z0 I$ ~* O/ M
let sum-money 0
% y; Y; T9 F( u! G0 Ewhile[ i < people]
! O& ?8 P6 C* z6 n% J[8 ^5 Y- A" V4 Q1 }$ Q" G" R: p
if( length (item i
' |: y, H' ?. m[trade-record-all] of customer) > 3 )
. b- \ E; b; @$ O( j# A[9 z% S) S' w n( G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ L/ C0 T5 f0 t: u5 n- r; R
]! g0 h* y; G B
]/ \& _7 Z! H; M, a O: [4 O
let j 0, x8 M. c- k* {* N( E. @. _1 B
let note 0
2 d& i O# L) _; i2 Bwhile[ j < people]
5 W. u. z2 J, r4 M[
6 ^& D* w+ K; F8 \if( length (item i$ b3 Q! a% }" G* W( _7 h6 h5 z
[trade-record-all] of customer) > 3 )
4 Q* |/ G7 R; N' p) _5 I[' w; k' Q& F9 x" F' \6 @( X& V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" ~% R q1 z3 `% {) c; j1 ^' C$ `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 c: `( P# S+ L( N& W; \/ }; C2 F[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 a; n1 g: T$ G9 i$ n3 u7 z8 `]! R; V4 W: r& m3 k
]+ x1 y2 j2 H; s$ ]4 g# j
set global-proportion note
2 \2 ]9 ?" {* n/ o+ m: J]. }0 q Q; B) @
end
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to do-trade
. i$ G# r- x u# j1 l! n4 J3 i;;这个过程实际上是给双方作出评价的过程/ x- Z/ F5 |' w3 `2 O: K7 B. @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' C/ m0 x( O) }5 d9 Z3 Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ K9 i' R" P! K) l$ D3 |, O
set trade-record-current lput(timer) trade-record-current$ O7 c$ R2 s' l7 b
;;评价时间
2 [, z/ a' A! Iask myself [, f( A. i& \ P7 J. ?/ `
update-local-reputation
2 [. ]: d, ~+ X/ {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
, c9 _$ |& W2 F;;将此次交易的记录加入到trade-record-one中
+ P0 W# f, m( D }0 h# h6 gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 I. [ B6 D( V
let note (item 2 trade-record-current )
D& O, O$ F- J; G9 nset trade-record-current
- n) `2 E9 x% P! B% T4 ?( L(replace-item 2 trade-record-current (item 3 trade-record-current))
$ Z1 x* a% @% G* R4 w7 h! f, hset trade-record-current% Q( u3 B% V" c6 S$ v) x1 |
(replace-item 3 trade-record-current note)0 O. g$ A5 C. A7 j& L4 V
2 _" e8 S9 w6 D( e ~" y( w
- ]! f. x3 n! |. s5 N2 eask customer [
; P1 d4 }: ~ A' _, h# J5 Kupdate-local-reputation+ g7 e7 V/ m+ b3 v8 t+ [
set trade-record-current7 a/ e! a! ^& i q, `
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; b6 N& d5 `5 Y4 ?8 z8 p7 Z
]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" L2 y7 j i( a+ T' r
6 K2 Y" d. |- C8 f# l+ ?( @$ Z% Yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): \4 ?5 V2 B B I: e/ p( `
;;将此次交易的记录加入到customer的trade-record-all中( ~/ H" a/ G/ [# L6 j
end- s3 M! X1 N. l% T8 ?( d! z
! O' e( S% F8 [0 z8 }to update-local-reputation+ i2 Y( g8 K; E$ Z A
set [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3
# e6 ]- M2 Q; E/ y# yupdate-neighbor-total
) I f, i7 k4 e" G' g2 p: i6 H8 e;;更新邻居节点的数目,在此进行) j# c7 m) Q# b2 O; e9 w8 f4 m
let i 3
1 v: h6 |( o4 ]+ Y) vlet sum-time 0' N) d5 w U2 n- M
while[i < [trade-record-one-len] of myself]
: K+ I1 C' m# V1 A: @[9 L0 J* r0 [0 f+ c a; V3 ?) _* ~
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# N8 b5 W, ] }6 }set i/ W/ G' A( I$ A# C
( i + 1)- w- X4 j7 P& t9 j' M& S' _6 O
]3 ~7 ` R( j/ v$ n9 J4 ]! k! j
let j 3
8 J: j! N8 N+ Z( Elet sum-money 0- q V N6 j7 ^: {
while[j < [trade-record-one-len] of myself] k# G) _- }' b! p
[
- C( I- C6 E5 {set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)& s) o+ _2 H% a0 I0 Q1 i
set j
( \$ |) h; P3 r: H7 l: T7 [% L( j + 1)% p2 W% s* S& ]% c) ?
]* O4 o `) R1 m" W
let k 3' m6 {, ~9 ]' T. Y
let power 0
1 m8 G6 @# \* M4 k7 N* G# L# T7 B) Tlet local 0( ?4 O! j% W4 P! o) n$ y( D: @
while [k <[trade-record-one-len] of myself]
$ J# N6 q7 t* D[
& |- m" d% S5 r( `0 `% Uset 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) 0 w7 g3 P: {8 U; T
set k (k + 1)1 o/ D D5 }* z& Z+ i4 a
]
5 B' R0 @) N0 K) h5 j0 gset [local-reputation] of myself (local)
$ ?8 h2 _+ b4 g$ L0 Lend
& R3 p2 @, }. o
# R2 A5 f2 ^3 ^3 d& U0 g; mto update-neighbor-total
{$ `3 l8 K% B- l" T% Q( T, H
( j9 _4 I+ s! H1 ^! fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end, c1 n% n0 l- @5 V' t( M G
3 |4 t1 w% M3 x3 ], j! g) D( ^to update-credibility-ijl
& {9 i8 ^ s$ [ \, N# S
) d$ E4 v6 u$ H. F4 ^) I2 [! i;;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。
2 B; t5 @. L4 t- b/ e1 N+ Vlet l 0
% Z. C# L; \: ~while[ l < people ]
H9 H& T1 y9 Q: _2 d; ~/ M;;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
m! _! J: a; ], Y. G/ `( {[
& K/ b/ H8 \6 r3 X( [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 x/ Q3 A+ U' N: g) c0 Oif (trade-record-one-j-l-len > 3)
& k/ u! ~8 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
( l3 C, G& N8 W7 [- p5 Qlet i 34 H5 R: N+ W. r% H } F
let sum-time 00 g6 W+ e: O! d- l( L) V
while[i < trade-record-one-len]
, l& [# l3 ^2 }5 s0 ~ r[
7 U" t$ R8 ~ N+ i% e6 ~. [set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' h8 t/ s. m- Q3 B4 n6 {+ N
set i
2 `* @( |. P2 V; E6 \( i + 1)2 u6 @! \. E9 `$ N/ }
]' Q+ V3 n# h8 d0 `5 z7 `
let credibility-i-j-l 09 m- s, ?* E# u4 n! n+ m a, h
;;i评价(j对jl的评价)/ a: M* w; u6 b; U4 V) c1 a
let j 3& U0 [4 {& n6 h3 ]0 j1 i- C
let k 4/ ]2 T# e x- {8 u: `
while[j < trade-record-one-len]
: Z3 V6 N' T+ \" `[$ M$ v4 V7 a- M) u2 U/ e7 R1 }
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
# h* c# h$ n- r! [* Y0 dset 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). V% k W9 ?; z$ n2 g# N0 W3 l
set j0 W" ?& E8 Y: o2 f: `$ e9 y
( j + 1)
/ P3 |4 n# J) u2 w4 T]0 n# z7 ` {, a3 U+ e" S
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 )), {; T% c; S5 q. v$ b& j
9 E8 ^, P5 ~, { e9 L( K
6 E" J( Y x! }, b+ ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 s% {& s; A, Y: ]! u; N;;及时更新i对l的评价质量的评价2 x+ F6 d- `; l- w& g- }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 I5 }4 u4 O+ ?5 s! @1 c- Sset l (l + 1)
% t/ G3 ?) T; M0 t+ b, {2 H]
3 G! A: S9 ?5 C* d( Vend% I1 e8 g, U H9 i
, G- E; G" C ~' G
to update-credibility-list
; p0 J0 \$ v9 K2 f& Flet i 0
# }1 o, s( ]9 W8 m; swhile[i < people]
$ U. e2 f- o0 T6 {, e/ V2 m+ p[5 F+ k% P0 f2 b1 h
let j 0& U$ D) K6 m" n; x( d( a1 h+ T6 G- \
let note 0
/ |3 l, x; T9 y. x9 \- ]let k 0
) C- V6 @: t( g" A5 w- @6 F;;计作出过评价的邻居节点的数目
( U. ^# D# y! K# Dwhile[j < people]& q; m- v J, o( ~
[
1 F- B: i* n/ I7 N9 ^( _) \if (item j( [credibility] of turtle (i + 1)) != -1)6 _1 R9 S& s p$ K
;;判断是否给本turtle的评价质量做出过评价的节点
/ M( A9 Z* S9 @. G[set note (note + item j ([credibility]of turtle (i + 1)))1 x' [# a9 ~/ i: q* W A
;;*(exp (-(people - 2)))/(people - 2))]
& H1 o* Z4 O9 @2 S. G; E" a8 e+ j% Hset k (k + 1)
0 {/ H4 W, y) I: v, c+ l]
3 \4 G( u( Q9 Q' @4 I. v) nset j (j + 1)
2 O* o/ r/ m* O3 ?]) ]# N. G' h8 N- ^4 Y
set note (note *(exp (- (1 / k)))/ k)3 a# k1 _; w o V' O8 S
set credibility-list (replace-item i credibility-list note)
. q" n X2 O( v& ?: W$ u: f; z( Sset i (i + 1)9 X; `$ y/ l* V; t' i
]4 U% n" v' v9 E* F
end
2 j0 N1 `' f8 y" `% q; ]4 m8 v& n# P4 G
; M9 c# o" m7 u bto update-global-reputation-list
( Z. u; m1 S) V9 Z: `let j 0! d$ Z2 {) G5 O8 L* K
while[j < people]' o0 P. A! E; ?- _: p- a
[8 U2 ^2 \( o& l+ J7 }% M
let new 0
9 @/ q* t7 e* Z+ a8 t;;暂存新的一个全局声誉, u/ Q; `+ b( z2 D! w* U" B$ ?
let i 0 v* L: S# r2 c2 I
let sum-money 0
* o& a/ f$ A! A( ?5 J- Mlet credibility-money 0, D1 j5 K; b2 s& F
while [i < people]
5 ]! \* z: F8 k[
% W8 L |( L7 o! M6 Lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); v+ n1 x4 h* v6 T) a% U% \
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). m, p7 s; Q' \$ h/ L2 u) O
set i (i + 1)
8 V7 v& m" i6 D]# k0 h$ o8 C+ j$ |' `( b6 H
let k 0
2 F) p0 G/ b k/ @4 Nlet new1 0
. M; h4 x" A. Q9 M5 w- @while [k < people]% C' z: L/ U3 S0 q0 |- b/ q
[
. B, r# _6 }7 W, u& sset 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 l t$ r m5 a# zset k (k + 1)
% ~4 I+ @, h& K; ~+ W% @* `: c]' i O9 z0 v: L, d% z, o
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
^% R8 C0 [2 R* ^- b; dset global-reputation-list (replace-item j global-reputation-list new)& {0 `$ d7 @) u! z1 t. X
set j (j + 1)
$ F P' E! [1 ]& o7 B8 ^5 b]
- Q9 g2 \" N5 ], f2 f' Lend) y* O1 `; r; n$ w7 ~+ _; ?- q
( [) X8 z/ k% B& ] C
2 y- M: h7 ^9 ?' ^# C
6 e6 l$ d/ R5 C0 F) W8 nto get-color
5 {8 h( E# q. q$ q
8 A2 L. n( ? k% Y" Z9 z; hset color blue
8 X' R1 ]! O- lend
: m; z& `& M. o& ?* N# R
6 [, k4 e0 u3 Pto poll-class: @; O) I5 N7 R4 V( s6 s
end
2 J# Y" q2 s. a% {# w7 M ?0 e/ S: `1 K" {3 y* | U( V: d4 ?
to setup-plot1
7 M( {7 K" \' `9 X
- {9 s$ s) h4 ^# }1 d8 v2 Eset-current-plot "Trends-of-Local-reputation" U1 A9 \. m4 D4 `/ D+ o. n& V
; ^' K+ J y; A: E+ M" F: pset-plot-x-range 0 xmax3 i9 o _% D5 a
5 E5 O4 E& L) ~ T$ t1 M7 W7 q
set-plot-y-range 0.0 ymax g. n0 e* `8 u/ w
end
" E& T& k: h$ V
+ T7 @6 H$ m4 L- dto setup-plot25 _& D3 o/ x% f7 Z& Z1 M
" k S7 e6 h9 r9 X/ o: ~4 _% q, q
set-current-plot "Trends-of-global-reputation"
! z4 [ ]8 c8 c: o ?7 \+ I" z& Z- u$ e) i9 b& H
set-plot-x-range 0 xmax7 M" Q$ m2 w) E- l
; u2 _4 j6 t9 l" f h
set-plot-y-range 0.0 ymax
) F0 e) r; X8 g+ vend
- Z. d6 E0 ^! c, u( C8 a+ ^' V2 A1 B( a6 B6 M# t
to setup-plot3% S+ G9 n2 S) |' a$ r2 |
! P; a; s; w8 B7 ]9 Jset-current-plot "Trends-of-credibility"3 d- x, h8 K* ^
6 e4 K4 {0 [# F: |+ }set-plot-x-range 0 xmax4 U/ Z; m$ u4 {+ W* v8 h
, M' h. Y+ _/ d0 q6 ?2 jset-plot-y-range 0.0 ymax
' h) K4 \% ]3 i2 R h0 }. |# l. uend* l, \' X/ _2 v' L) ?
4 G! F6 E |6 K2 @to do-plots
* [4 d) [2 A6 p* k. c Aset-current-plot "Trends-of-Local-reputation": {# I0 v4 O4 Z8 T$ E& U, N
set-current-plot-pen "Honest service"
0 N/ N8 M6 H5 I$ p2 F, l' H/ Bend5 A% t* V, C+ z( R1 i' j* M4 [: i
4 O: v+ q- S% n[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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