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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
! k5 {$ S) Q7 A- d: {. H7 g wglobals[: O/ L/ Q1 W7 y& @
xmax
) s( R2 @4 i; nymax
/ P) ?% i0 H$ ], t/ Y* v8 uglobal-reputation-list8 `, s) K# Y3 b J
$ l7 s( b1 L: Y;;每一个turtle的全局声誉都存在此LIST中
* I8 `2 F6 ]9 Z4 @" d2 _4 D/ Tcredibility-list; B) H0 }% n/ p7 W
;;每一个turtle的评价可信度/ \% I, Z- z9 d# l9 m! H4 M
honest-service
7 |! s1 o& L! y2 g( q6 junhonest-service- Z) F/ d9 l: X8 }
oscillation
- D! Y( c& _" X5 E* Z- K0 s ~' Yrand-dynamic0 v) }: t+ x* E& ^
]% B4 v, X1 ^4 V+ h( [$ b$ L0 U* u- s8 k
: M, o9 A; {% s Z7 |3 }turtles-own[% R: ~' O" t% J1 J: n' ?' H
trade-record-all3 n- ]+ ^* S; b: \( `5 Y6 D
;;a list of lists,由trade-record-one组成- v9 R; g! z y ~# x
trade-record-one" I. j7 s: e& i- X! b2 j. W" 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
% w; v! B1 C5 L' v ?
" ?+ T, M0 _& ^+ i* c# d+ 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]]
8 R& M% H5 y( R6 S7 p/ otrade-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 f$ h9 W# q9 V: p1 |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* R+ P( T& Z$ Y/ e
neighbor-total) l7 P# c' D- x' Z7 ^$ U
;;记录该turtle的邻居节点的数目+ @8 Y( n7 q6 c* b& Z! R
trade-time/ Y: H. _4 T5 |( r( k
;;当前发生交易的turtle的交易时间0 M. x5 E- s0 u* s$ \. \
appraise-give
1 L2 L6 P) @) t7 S* b% N;;当前发生交易时给出的评价 I) Y; C D* e( w
appraise-receive* m+ d: K$ v# p7 F0 ` _
;;当前发生交易时收到的评价
; @% h8 O9 d- p; a# g5 Qappraise-time
- f3 X6 N; S' M# A( J/ l) M;;当前发生交易时的评价时间
+ {5 H5 s. G+ d4 U0 g7 ]local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ u1 s3 G* m G3 O) Ktrade-times-total
4 v% c+ h3 f! r( r6 q# a;;与当前turtle的交易总次数
3 U' X) S+ c5 b7 {! V% Dtrade-money-total) K6 V" j5 E) B& d. m, L; ~
;;与当前turtle的交易总金额% a- }2 ?# L9 |9 C
local-reputation
+ W8 w9 G9 X& H1 n$ Y1 v7 bglobal-reputation* q3 o7 _$ ^7 u7 ~6 j3 ^8 F
credibility
8 ?/ i B5 I f- T) k;;评价可信度,每次交易后都需要更新
: e, W! a+ ?( @9 v9 o) \6 mcredibility-all
3 ?( r K6 v+ g" Q;;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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;;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
* D2 d q' G( N, ncredibility-one
3 H3 k0 B& z/ n1 M5 K! `;;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
( Q$ I' u$ K/ V6 c# y3 P. V- B" oglobal-proportion' F6 l3 p& x/ @# K
customer
* K* W* T& A9 B6 ecustomer-no
, _6 `9 ^* G5 ^# r: S9 Y5 j9 ~: Qtrust-ok
* J; T2 i* j/ strade-record-one-len;;trade-record-one的长度4 h* x, A8 J" s e4 V6 Q
]4 y9 ?- o& U( p, A7 G
' W! n+ W2 J# h6 l# y+ v, R;;setup procedure( ^1 C* a5 I9 E) Y* {" O; O
( U* T, ^6 }; U8 @8 C7 r2 xto setup
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4 Y6 N5 p6 k [/ ~7 Mca' `& \* O) y/ D( v6 ?/ C
; ?3 U, h1 K _+ Q7 cinitialize-settings
$ f; I- a8 l% w$ o/ q4 c2 y7 R8 h; M8 n% F2 C" }' n; r" O
crt people [setup-turtles]
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reset-timer" N7 @' h! G8 K: ?* C9 t6 J E. o
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poll-class; ]# b! Y( I% U8 _( Q" w6 ~& E, |
: ^6 J/ B8 u# m* T) x; i
setup-plots0 j }+ _; H7 b6 x, h; d7 P( I, S |
$ ~5 ^: u& J- ]6 |2 Bdo-plots
E, \( h* V' ^6 oend
% {2 \$ V. ^+ v7 b( I" V3 U5 n8 A1 U4 v6 |
to initialize-settings
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set global-reputation-list []) c, [3 l8 f2 i: C( ?# C/ r
6 B6 O' H& l3 M) S
set credibility-list n-values people [0.5]) r& ?. |+ O5 ^5 p
$ R6 `) O9 Y6 _- a% {: m7 w2 }; ?! Zset honest-service 08 _! y) V- V0 K9 Q
2 D: w" T g1 b1 G7 L o1 V0 B
set unhonest-service 0- b, o, h0 ~% n- u8 B, H
- l8 B) [$ Z. l2 X) Jset oscillation 0
* o+ y+ _* A# d& }) D/ X6 ]- D8 i; ~ Z; A0 k I: G! S% ]& B/ v
set rand-dynamic 08 _) i0 p# c0 d. w% X
end- l- H' _' O' _6 `. o' R- ?- P
# w1 d! w6 ^8 `: g, A
to setup-turtles 1 L4 V6 H' |* }( S
set shape "person"+ `# c& E7 R+ A) \" k
setxy random-xcor random-ycor
! q* s) W* K. @4 n: z: V/ X$ i# qset trade-record-one []
% E1 ]/ S, U+ r" d3 h2 O V
) N' Q+ {' M0 b% G% ?set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []- H' @0 @/ C/ c& E Q+ |/ z$ N
set credibility-receive []
5 v9 C+ I$ _6 P5 P: g. |8 Fset local-reputation 0.5: q: k! }7 j. M) y5 E; a
set neighbor-total 0
4 \& E5 u6 N& u% a9 Cset trade-times-total 03 e! Q5 T* d) r: ` k* E0 f# L
set trade-money-total 0
6 h1 a3 {+ C/ w9 K1 v; x' lset customer nobody
2 U: g! `1 y5 zset credibility-all n-values people [creat-credibility]8 T8 x9 s; l& s1 C0 o4 w
set credibility n-values people [-1]" |) _( S8 a6 k7 f
get-color& ]# v0 F& I5 { K x2 H4 q) K
" N' a6 \7 e4 eend
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to-report creat-credibility
4 |! K) C( Q" w; f0 sreport n-values people [0.5]5 _5 {' U* b, f# ~5 i: y
end
! Y6 \; S% B- c% e
$ S( R: c9 e! @% @to setup-plots
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6 {( @2 J, a# t, N4 Gset xmax 30" E, y/ t/ b8 D" J. V* @5 z
, z& F7 A* z" d1 ]. J
set ymax 1.0
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. \3 ]9 ^& [ Oclear-all-plots
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( C9 g; H( O9 D0 osetup-plot1$ {' F( y& F3 }) J0 m. k$ S
6 F/ \+ l4 d* _8 C, |* ^setup-plot2
( Y: a8 g# \. R5 _& o) i- S0 [% {- a' S
setup-plot36 p9 w4 i7 k4 F: N7 ?
end
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;;run time procedures0 S0 @5 j: g# _
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to go
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ask turtles [do-business]3 F6 l5 V! W* i( I" F* y2 L! E2 J
end! U7 x5 D- M7 a& {
" S- y! z0 T' g. O6 H% Nto do-business 8 d: M* a' X& H, B. Q i
% b+ q; n6 x4 X7 G8 p6 m" y
1 T4 X+ a* q- n, O
rt random 360$ n) ^4 g, R* S" Q- d/ [2 ^
! T9 o9 t; c& Mfd 1/ H# O* i- F. r% y( r
x# G0 D0 M/ V- ^2 a) r& o2 |
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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+ s' O, m* d% t5 x4 ?6 k;; set [customer] of customer myself
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}9 q& O/ n! v" v1 X: j6 iset [trade-record-one] of self item (([who] of customer) - 1)
2 w5 O. P7 G* o% L[trade-record-all]of self
( \$ i2 d z, {;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& F" d/ j/ L; n, i8 I
( m* \3 N& M1 F$ p! b
set [trade-record-one] of customer item (([who] of self) - 1)
% A' \5 }2 [+ ^, ]% h) S. h[trade-record-all]of customer: Z @$ X# ^( p8 U3 v: O: j: d6 k4 |
" {) B' Q+ m _ i0 K4 ]
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
% @$ ]6 c l6 W L
- ~$ R" V" y0 Z4 q6 P$ Qask self [do-trust]( W0 i% t/ V& |# Q
;;先求i对j的信任度
% W, s; R# Z* x, L# x. T3 m; x6 u
1 \; H. ?5 g7 B; l0 p% Wif ([trust-ok] of self)
6 d; m2 @ v7 Z$ p4 C. ` d;;根据i对j的信任度来决定是否与j进行交易[7 ^7 _0 h# T, q) l: H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* Q# t" |6 O% {
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0 K7 D( a. e0 G* N; q7 U- I4 [! ^3 ?& V
do-trade
6 c* n5 z7 e5 e7 k
6 Z3 {7 H9 E9 [6 l1 Qupdate-credibility-ijl
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update-credibility-list7 }' i0 `) }' ~. t- F7 M& g
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update-global-reputation-list
0 V. @6 r N8 i6 d1 o. o- p1 u. B+ ?. V6 W5 B
poll-class' Q7 h+ @2 H5 y2 j3 Y
9 V0 T- p" D. K( P
get-color
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; r ]' F0 u/ j5 w]]& v) |5 h+ W: |, x" k' C( d6 I6 K
! ~. _" `" a/ v+ m! f i;;如果所得的信任度满足条件,则进行交易# h8 A7 [: P/ J! F$ |
3 X: a O- [; O& M
[/ S" V# j. C, y; Y0 f, T
8 c; } [) V! y: S& Zrt random 360
. c+ ?% F! a' \' p B& Y6 r# ?
( o5 T% z" Q' [' sfd 19 [3 z. R9 I9 h
6 R& c, z: @' F3 p' |]
. W7 D& E( }% h& ~, R0 A7 R
! v" O/ n0 G5 e. @end
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to do-trust & L# m4 P" y% `' L
set trust-ok False
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: e- R% Q" W: n3 p ~. b# llet max-trade-times 0* m, H# v0 J& ^8 L
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" Q7 \: g" e* [7 m* [ l
let max-trade-money 0
d7 _. l& d( k( |3 R# _3 A# zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: ]8 |& a; ]5 j2 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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" s+ J+ n6 f, W/ ?6 ]" T+ k) `6 z4 A
get-global-proportion
) Z" [) p- R: w9 wlet trust-value- {+ Z4 ?' f N' o/ u
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& J6 U E# }" x4 |( l9 eif(trust-value > trade-trust-value) Z7 @6 d" f9 y1 k; C
[set trust-ok true]( ]# c! i. c# I8 T
end$ E8 Z9 q' `1 N- z: z5 C) W9 q) {1 e
+ a6 `. a2 |0 D- @6 q5 x, C& L
to get-global-proportion/ n% a, R- ]' Q; F
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
; L- U; d6 ?! @% j( F[set global-proportion 0]
) ?/ @+ q1 z* n/ B/ Y[let i 0( P4 Y3 Z( G+ } j9 s
let sum-money 0& J8 G! `* q$ z, \9 I/ a9 W; s3 T. G
while[ i < people]; N% n/ |: g7 W5 F( T# H9 q
[4 I$ T8 D, {3 v
if( length (item i4 N- d1 y% T, P% {8 d
[trade-record-all] of customer) > 3 )" m Q" L( z' y O& V g! r+ y
[) t! o4 M& s" F% s; l% Z/ m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% S8 L9 _' j, ]* t]
6 f4 f- C8 @- G- }]: M w. [0 P% S5 O$ I% L; T+ E6 i
let j 0
5 U% k& }& U( U: \let note 0
f$ N# @; A; T* G7 S8 @while[ j < people]# T- G' O; h2 W- f* |! U
[. E, C, p! N% ?5 K; E% D1 F( E
if( length (item i
3 y, g5 l5 f; L& Q+ j2 t[trade-record-all] of customer) > 3 )
2 ~/ l4 s4 \* J/ C* D: R[
1 A; c8 T( k' [1 \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 m/ E0 e% `6 M, W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 ]" U1 x5 _/ f/ q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% U1 K7 U4 a4 b9 F& F0 h
]
0 l# j$ d: Q' P! I7 ]]: [! I9 Q, ]) |: M( H; \6 Q
set global-proportion note$ G! d7 q) G! b0 y3 K
]
4 V3 _7 ?" K7 X, aend
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to do-trade
* c8 G, Z& g+ x;;这个过程实际上是给双方作出评价的过程
4 N" e% H" l( D+ |# Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 j" |% P+ M) H- b" g: i0 L% }4 z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
j% C( P- u+ h3 o/ F6 gset trade-record-current lput(timer) trade-record-current5 t1 ^% k7 {& ]/ o; |5 R
;;评价时间$ D/ t) L+ V( T# x, {
ask myself [' o! i0 }4 C) @* @: \& f0 W' k
update-local-reputation
2 b( P% k# ~ {+ e0 rset trade-record-current lput([local-reputation] of myself) trade-record-current
3 ~9 d" d3 X- G% V5 P]
0 B* E0 K" A" R) u2 m0 ?$ H* zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 l1 q% C% [; B; W: ];;将此次交易的记录加入到trade-record-one中
' H/ x6 C8 V: q8 u; Yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" u3 c( u* I& h- p9 e( ~1 Plet note (item 2 trade-record-current )
' u+ b& r0 m' Hset trade-record-current
9 F2 y( P4 D+ I; w0 ]6 S(replace-item 2 trade-record-current (item 3 trade-record-current))- ~2 V( P% V7 v" U5 k
set trade-record-current- c% Y9 T k- M( s
(replace-item 3 trade-record-current note)0 q" C" O3 Z, ?- M0 H; H# n
! ^, J& @# y) Q
9 w* ?. j; _, N2 |9 _( yask customer [
c+ U* F2 s1 h0 c# s, supdate-local-reputation: X# q5 ?# p. S# C q
set trade-record-current
3 |- Z) Q* n, F, e- C3 R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 w; b. l( ~1 t4 X, x
]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 q3 k6 j( f+ `5 _2 G& e3 n
% l' F( `7 l+ G2 ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" [0 ~. _' v8 E, w# _5 [- C$ Z' Y
;;将此次交易的记录加入到customer的trade-record-all中; O7 g' d& t- V
end
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7 Q' U" {5 b1 z! C: x& Q& q rto update-local-reputation# v( B8 V Y: x* N+ c: N0 }
set [trade-record-one-len] of myself length [trade-record-one] of myself7 E+ N- F8 L& Z! S
! N z( E, N# a- j& ?2 _
. @/ s% a* z' [0 k, \;;if [trade-record-one-len] of myself > 3 2 I* B& t9 C& d( a
update-neighbor-total
& u8 b) s. x& z5 D9 W* \;;更新邻居节点的数目,在此进行
7 `; h E* i O0 Vlet i 3
3 K$ ~- s* T: u: l( S. Nlet sum-time 0
7 L1 M1 c( L0 Kwhile[i < [trade-record-one-len] of myself]0 [( d( s' C3 `: i$ @4 P' O9 j5 o6 o# l
[
/ A }. F- i4 Xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 a4 q! x- M1 G" y) G" S: A
set i
" K$ j5 j- M, C Y5 o& p) ^( i + 1)' j- B- s7 Y2 u$ ?
] O5 a9 i+ c8 ^" D& u/ ]
let j 3
* ? A. z4 s9 ^7 tlet sum-money 0$ L1 d7 N9 Z# Y$ Q7 @/ f w& X
while[j < [trade-record-one-len] of myself]
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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)
# R' Z$ z. n5 i) \: Tset j
" D( a3 B0 w7 Z6 D( O( j + 1)7 n' K- t+ ^& F- ]( Q. [$ {% h+ n3 I
]
: O. \: Z* M7 Y, _: m9 l, m, }7 |& I5 I! qlet k 3
4 C1 E* J, ^7 U! f5 g6 Alet power 0
. i( n0 ?5 y3 ]$ b! T! T7 V; wlet local 0& J( B# n# G9 F; d" W& `% _& ]
while [k <[trade-record-one-len] of myself]# |+ N. N2 L3 y, Y
[1 v! Z: }7 A5 R% \% a) v
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)
0 ]8 H Y. m& t9 c; S/ cset k (k + 1)
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set [local-reputation] of myself (local)
2 k4 Y) B B; H" u0 P2 bend
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+ i* `& ?- Z: \9 o8 Xto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- s" p0 X3 A% T" V ~
# K' y. b+ n1 Q
1 E% E3 Q% h9 p; R b
end# L! i9 o, _5 S) [+ g/ T- o& K
2 D) D; s& D! _to update-credibility-ijl . j4 O/ t( u3 w8 Y0 \ e
- A4 t% b9 {* I' O7 X# l# h; j
;;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。
1 N7 h$ n5 x- ], h$ clet l 0) ^9 z! f. T8 y. x- h5 ^
while[ l < people ]
, Z" y/ t& u! X5 W* V;;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
8 G% E/ x/ x% l3 M9 r! r, W[% _& _2 }) b M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 F# _/ B W/ f6 N' u
if (trade-record-one-j-l-len > 3)* S: ]/ j7 |$ j6 v
[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
2 q c( [5 `1 L, H# Blet i 35 G% f+ ?" P) W! D
let sum-time 02 R e4 n f- ]" C
while[i < trade-record-one-len]
: X" V5 J) o4 g[
! q) ]5 a( O5 tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 ?1 s' D# _) Q" W6 s! N! h7 U {set i; L3 |: P" }& h: T: U
( i + 1)" t0 X8 g' B. L, R
]
, }, |% p( C7 ^ B) f9 Glet credibility-i-j-l 0& R/ I; O1 V0 N' n. L$ }- o
;;i评价(j对jl的评价)
$ a* t" S E' tlet j 39 o8 R* S1 g D* ^( E$ j, G% _
let k 44 h# R9 U0 A( G; }) F1 H. y
while[j < trade-record-one-len]
3 e, F, [8 v s; k8 }3 h[
7 k, }1 }& N1 S awhile [((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! h5 t! }' |; C) X8 v: J D: J% e
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)
$ x/ b' g: x! u/ o5 aset j6 ?3 r& e" J0 e7 p7 u8 r7 s- c
( j + 1)
/ Z9 b- A3 e9 Q3 o& h. R5 T2 []
1 ^- d4 F& E" x6 O$ O) _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 e0 W" H( g4 M: l; i$ t! D; w2 C7 P% K6 T+ c* q5 u
- v5 ^9 R3 s b" ^/ N5 J; ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 C s+ \5 ^& Z* P. O;;及时更新i对l的评价质量的评价. ^! y& ~, |2 w$ {: E+ s ~- t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* i6 r# I C9 j P& B- k( o5 N
set l (l + 1)# `/ j, L, Q. O6 @- q
]
- Z5 X& V: j( ]; R" k+ Tend
0 \7 k$ F/ L, ]- Q7 f5 u( Y" s# f3 \
to update-credibility-list
) E3 Y* i; E* f5 B nlet i 00 l9 h; m' U! H p) I
while[i < people]
& q6 w1 i& q3 ~2 |, C[0 v: K9 H+ I; g7 Z# M3 B* ]" E% e# i
let j 0) ^7 l# r" q. \0 u+ S/ i
let note 0
; n+ h0 N* Z$ W1 z" @, glet k 0
r5 m4 b W7 K0 _% |, b, M$ x6 M;;计作出过评价的邻居节点的数目
, s% k; H3 x. ~7 r! Xwhile[j < people]8 ~: y; ^0 @& O- X# A& m9 L
[
, d9 u: [6 v' ?. M( q; k Gif (item j( [credibility] of turtle (i + 1)) != -1)' H: y O1 C7 Z8 b5 k
;;判断是否给本turtle的评价质量做出过评价的节点
! `: Q2 b7 w: ]; Q0 o* f3 V; t[set note (note + item j ([credibility]of turtle (i + 1)))
' k- d. y2 ?* i8 W5 Y! @;;*(exp (-(people - 2)))/(people - 2))]
' v; n2 u# P" D! I/ Hset k (k + 1)( K' v* ^) ~/ o( Y Q9 {
]
- O7 A! l8 f$ fset j (j + 1)! u4 W5 o9 G' o3 I( O9 }7 m
]
/ t2 p4 o5 O2 H* Y7 yset note (note *(exp (- (1 / k)))/ k)) a+ ~) a+ t& m) m9 j4 k6 D
set credibility-list (replace-item i credibility-list note)
) B- p( O' P4 n- ~7 cset i (i + 1)/ P) _- `8 z7 x
]
4 T3 Q8 P/ e( oend
+ Z# Z' r! P) p+ t; N3 J f" E( M1 O# [
to update-global-reputation-list' A5 Q, E; Q; `6 T s' V3 @
let j 0 @! {, ], B8 B4 }0 a' ~
while[j < people]
$ X" m$ R' p& ~[, y4 X# J5 U) ?1 j+ k
let new 0
+ `. ]5 V4 i" R1 n7 [" C1 i;;暂存新的一个全局声誉
5 I8 @; N& N- y4 Z5 w, N t4 [/ G. Slet i 0 x6 N7 o/ |+ I
let sum-money 0
+ ]7 M, p/ P$ Q& h6 Q4 rlet credibility-money 04 P( E n0 ^3 d# U/ m
while [i < people]) |5 o7 L+ k# U' D& G W, X
[
+ e1 ?/ W3 V5 Y/ U5 bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 y8 ~/ e6 ]- } y; z( k& `6 r2 N) M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). b! J; x/ N3 c6 U
set i (i + 1)+ |: P: f! ]& G1 w
]& x$ F9 H; H) r
let k 01 C% C0 v- `0 Y
let new1 08 a# J( v* H8 d' ~3 m0 y; g
while [k < people]
0 N- q: d( z3 P( R4 X$ q[ D; x8 a4 ~) ^ d0 j
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)
( H4 v2 K' H1 K5 Kset k (k + 1)9 Q3 p: ~3 S% G. o6 H# C& S L1 J
]
' k6 u( j2 v: b# e; F, G8 I0 dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# W1 i" A% k1 h; w/ jset global-reputation-list (replace-item j global-reputation-list new)/ V8 y9 V$ o3 T+ z
set j (j + 1)& P* |9 w; `0 j# }4 J) M* z
]. R y, d/ [7 q/ H
end1 V0 t1 k6 Q! |; D% f0 h
* e2 p; [3 e& i$ u6 ?2 {. L% Y% m4 e$ l# u
6 B0 O' g: @; B+ U# i
to get-color% @: d3 W. H- o+ v1 V- P
( [: V2 x. B8 l4 ?5 Dset color blue
8 @" h% U) Z4 Z! fend
+ k2 Q- w2 `; z( b4 ~8 t) {. j5 B* k4 o" c
to poll-class
5 S( [$ q% g$ Y y" i$ xend
% r* `# i& x2 U6 M/ c
& K, m2 C6 l- m4 b/ n, n: pto setup-plot1
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2 V' F/ `. T- O1 ~) T) V# }set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax# Q" j2 R4 ?% _. p( H
- U+ ?. |2 V' ?- @: n
set-plot-y-range 0.0 ymax
' w/ P/ K5 b5 Z* M! Cend/ m9 p W1 g" E- C7 M
! _( y1 m0 U, N
to setup-plot2
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set-current-plot "Trends-of-global-reputation") @7 W$ n G" U5 `
7 t5 b7 ]( C, Z! Tset-plot-x-range 0 xmax
' ^9 o1 a. O& T( \) t
" [; S2 `1 b6 m; Mset-plot-y-range 0.0 ymax
# D4 D+ F* r" o }: h4 {1 q7 i3 Eend& Z5 U M3 S4 w3 b% Z7 V) g
5 Q/ a8 ]; \+ ?5 n
to setup-plot3 `+ k$ X! n5 t
+ T- H# O5 J5 q5 i) ~1 F
set-current-plot "Trends-of-credibility"
4 U4 ?- `# s4 O- p |$ p/ y6 M/ ?3 P! ?0 V P7 }" b' M5 \1 Q
set-plot-x-range 0 xmax( ]* E9 U: J3 I1 k6 Y) J
' y" E- O1 n& c7 e
set-plot-y-range 0.0 ymax1 C% O3 H3 t5 W) o: S- I& J
end0 Y/ \7 T3 {. [8 b0 {& F
! y* B% ]) X6 R& pto do-plots
: @, G6 ]8 L- jset-current-plot "Trends-of-Local-reputation"
' Z P* z1 ?) z: K! Lset-current-plot-pen "Honest service") q/ L4 U3 ^. ^8 `0 Z5 |
end
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, r' X* m. r/ l[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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