|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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4 O+ a0 F! t& }. `: e
globals[
: a) L2 D4 @, u: H4 r8 hxmax
( C2 S9 X$ |! t) q* h3 \ymax7 F* i d7 j: i( _) i k9 F! a x
global-reputation-list# o6 |/ V: P4 f0 L
; `6 _5 f, U$ }& P;;每一个turtle的全局声誉都存在此LIST中$ n Q O1 x i/ h
credibility-list+ Q7 `# m5 |- y9 S1 D4 N( k
;;每一个turtle的评价可信度
+ I4 v( Q' ~2 O L! {; chonest-service
2 b. y4 j& k$ r, ^+ gunhonest-service
# e' Z% A# d8 m4 q, w2 x/ Coscillation' @) _' _' U5 Z C0 ]
rand-dynamic
- [: O3 m: S2 O* P- u) A1 i]
% e/ l q, ]9 |2 ?, K" L# Q$ W/ ]. S/ @% c- F
turtles-own[. K4 I7 U/ t' n3 A( h6 g6 b
trade-record-all
6 J# f4 G9 }' F+ ?;;a list of lists,由trade-record-one组成5 f9 y" L1 i5 }7 |
trade-record-one
5 l) M A4 R& z- @3 Y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- q/ r, n8 _- G o: E: H; N% l2 g; H- \/ Y' X& \
;;[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]]2 s# I8 g! h1 [7 I# J( o! O: y
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]
, N1 z* C# b9 i7 o1 r# ?2 Q3 ^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list9 Y$ l6 v! n) E" H b
neighbor-total
$ k( K( v( I$ ~* r( K& o) N& X;;记录该turtle的邻居节点的数目
: g4 o9 j+ V( ^1 ^trade-time
" ]2 X6 H7 n$ w0 y/ t5 e;;当前发生交易的turtle的交易时间
j$ u Y3 A0 i9 ?( ^4 q4 Y& Pappraise-give/ i; K9 S2 G3 _4 `* l2 D
;;当前发生交易时给出的评价, G# R1 S+ X) h' ~ R" ~9 i
appraise-receive
% g3 _: B; W+ ^+ o' s! x;;当前发生交易时收到的评价5 x' L1 U5 S9 C, L0 R7 T
appraise-time
. |( N% F- ^: d;;当前发生交易时的评价时间
: ?5 U2 R3 Q% x6 klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉0 e! X& v- N% v# Y) h4 ]; h! C
trade-times-total
* q7 |$ p: U2 Z2 V! q* C b+ Y;;与当前turtle的交易总次数. l" g" Y4 [/ Y% p. K$ v. D2 w- R4 Y
trade-money-total9 P% ~5 J& Z8 a+ S6 R4 u
;;与当前turtle的交易总金额
+ {# D; o# W6 |/ x. W- {local-reputation1 B/ V( F4 t4 D0 ~ k( K4 h o1 p
global-reputation. W4 ^8 d( ]3 {
credibility% k" J* t; d; o
;;评价可信度,每次交易后都需要更新' ^# e* _2 I6 _
credibility-all7 O8 C I' G0 n4 S* W6 n8 j5 Q- J7 E/ o
;;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3 i* r, ]4 v$ f. c& j7 L- I
% c3 ` G! o% V4 R: Y5 ^
;;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
: ?& ^8 E! {* mcredibility-one( Y0 [7 s: H1 Y9 R: ]
;;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6 x% i3 y1 ?9 @0 {
global-proportion; |( T) \0 }2 j
customer
0 U! o! i3 k1 S- Ucustomer-no
: l. ~1 A0 _. d' utrust-ok
* a9 q% |- T/ X( [: B, P( h3 [7 |" x" |) Htrade-record-one-len;;trade-record-one的长度
6 N& x4 q+ r4 G- [5 M3 ~]
% i9 m( Q" e1 T6 m2 B$ @
- m8 A* u+ ~4 a) G6 G;;setup procedure
' I8 ~7 y! u ?3 o( c6 L( t! f$ j6 I/ M. m9 U- |2 E; y* u3 ~9 N* `
to setup
5 k# m# c: T$ w5 } i, m5 P; s1 d0 h# g1 { _ G! w$ m
ca% q1 C. I, ^3 x5 k6 o
4 |+ i7 Y" Z' A9 Iinitialize-settings+ J) G# U6 {4 l( p
, c' L* ~# F* v/ n1 e! Q* r; v) Icrt people [setup-turtles]
* A( P1 P& Z a4 N# R: D6 k k
6 C9 U* z; N+ f; c: vreset-timer
0 k( i' F Z: Q6 D/ c' d3 n I) F& E$ [
poll-class
. N& [* e- W( c3 L2 w& c2 u& \
5 U( o( o: R; F v0 f7 Lsetup-plots
; r4 \: ]9 l/ U9 P T" q; c3 M9 F8 ]
do-plots
; M$ a2 a# S: q2 W# nend
+ `9 A0 H7 x% W" R' }% P- c" s u
to initialize-settings! c# G) ?; o. a: Q+ ~; z
% @9 r6 I, y" ]$ ]- d$ K0 b& Iset global-reputation-list []
1 a+ u( N G* p/ e$ \- ~
; U% Z( N: X# Z wset credibility-list n-values people [0.5]% l5 G: y! o2 _
2 H1 w/ k% |$ P/ H2 W
set honest-service 0
. L0 y7 M0 y, f$ B
: [& V7 c% C5 {set unhonest-service 0
- p7 i# F- k( f& u/ T' `% W
$ M, s8 C# `6 {' I0 O! _# fset oscillation 0
5 t4 J4 H& s6 f. Q2 [0 i! @8 o: h. |1 |( \6 |$ [1 p% ~
set rand-dynamic 0
& o6 v5 s6 L- J9 v4 U: Bend
" R7 `9 g2 c. e j7 s7 D6 Y. W j. l0 Z8 A* c! M
to setup-turtles 9 W/ p( y+ x0 {; A) f$ `0 P( N
set shape "person"; f) M0 m- f; ~2 J
setxy random-xcor random-ycor: C" s/ c8 s) [! @
set trade-record-one []
0 l% I( I6 B0 z( C, d3 T/ @- u# x- u/ w6 J' o8 L
set trade-record-all n-values people [(list (? + 1) 0 0)]
0 J* U: D/ ]+ _2 H! V& H7 l! t D/ s8 \/ X; O3 r% B1 ` R
set trade-record-current []
0 e+ Y! A# d+ i) u+ O9 Y! Rset credibility-receive []; T+ G Y6 I5 F1 `1 z* M
set local-reputation 0.5
9 |7 l9 U E' s( \set neighbor-total 0
) W& ?' w3 U% `. f5 t5 Iset trade-times-total 0
7 A( w! s: n" s2 v. T% }1 e, xset trade-money-total 0) p/ r6 h; G2 n
set customer nobody3 E7 \. u6 j" I4 W0 h* J& w; V
set credibility-all n-values people [creat-credibility]
3 \3 G6 v4 l' G; wset credibility n-values people [-1]9 t" B7 q, M, b
get-color2 n; `: E+ T/ V5 `9 E, Y) Y3 F
, z0 [8 ]# n4 V e4 [! ?7 K
end2 f5 `7 z& K6 ?. v. P2 {& {3 j
; `$ X$ n+ r9 ~+ m. u
to-report creat-credibility5 g; s* v5 r9 i. `' h3 c) k/ _ r
report n-values people [0.5]( V3 d2 o5 n8 D g3 m( X
end. ?0 T9 G( t$ a8 K" H6 k
1 |/ X5 B! @' _$ i# u& S
to setup-plots- z& Z8 s' [: s# K. C- ~, a( d
! \4 {" u" L2 `5 bset xmax 30. i5 r" s4 k2 ]/ s2 t% c
: T8 t) z! o @ f4 X/ n1 X8 S8 Oset ymax 1.0 F+ V5 {+ |, Q7 ~; e I/ k
5 H5 f! u7 Z( J6 Y: v* V! Z
clear-all-plots
. M9 L$ o: O/ C
0 A( O% a) {% h8 ^6 U$ }9 rsetup-plot11 J$ d8 U% x; ]
2 N/ v# M o* Y- d% @9 [
setup-plot2
1 v2 T+ } L. e) [) c: K
6 {8 ^! v" X* S: [5 P. M& j6 xsetup-plot3- f1 c* W6 X8 |) r( R
end4 j' p2 n9 M0 N% u3 a( H
# K2 n! h7 U1 z; t, C3 I5 G! _;;run time procedures1 S# T& W8 U( r. J* u5 W% d
4 x3 Z5 e g H
to go' K3 m( z$ q/ S0 X. B
% h7 O# O6 x; g4 E/ Gask turtles [do-business]( z: v4 t4 s# B& O% P/ O( Q+ y
end. L1 u6 a. r! w: S8 K2 y
@, t; ]8 b1 L9 y' J
to do-business
8 ]* n9 v1 r! @$ G! _) E- {/ s- t8 q( n$ ^. K# q L
- f) `) `" e# Z' V' |* Lrt random 3605 n3 C& ^" t8 @: U: f9 Q
7 M- g1 s- F$ i, g' Y5 v
fd 1
9 ]3 D$ P0 |6 n9 I4 t6 o
+ L4 D9 K% B0 z7 X$ K5 b: u, pifelse(other turtles-here != nobody)[7 r. ?4 m: [4 A: _. F2 l. ?' @
' P7 u# J+ V( A. oset customer one-of other turtles-here
9 g' p. S0 J6 k. V& v4 H0 I! {1 S% t/ I3 e/ x- m3 r
;; set [customer] of customer myself$ A" T0 [) r0 _) p4 V
+ B& a9 m/ F% y7 n& `4 P4 g1 Z
set [trade-record-one] of self item (([who] of customer) - 1)
9 e0 y& e, j& `[trade-record-all]of self8 K$ {( ?' z1 X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) D1 E) j; F* E" R+ V% z. ]3 y
) x# D& @# Z5 ]5 K! ^3 f
set [trade-record-one] of customer item (([who] of self) - 1)
2 A3 ^2 U9 h g) A[trade-record-all]of customer6 u0 [. Q2 t2 F# M- S: t) M& }
. c1 y) ~% q. I3 E& k' T# L/ k" J% Vset [trade-record-one-len] of self length [trade-record-one] of self
! O" Z0 Q4 M S4 s, w+ |9 }
9 N1 I8 z6 ?6 `' D* H& Wset trade-record-current( list (timer) (random money-upper-limit))( p. l6 N6 @) ^' q) ^3 K1 @
& o% w' w& ^5 ]* @8 z3 n
ask self [do-trust]
5 @+ z' F( B7 O% K. o, r$ O" n, G;;先求i对j的信任度3 {! m6 a* c5 ]
. ~8 v! v' i1 c H \ l4 t( h8 Z/ R
if ([trust-ok] of self)
7 p/ @5 G4 r. j6 ~# h;;根据i对j的信任度来决定是否与j进行交易[
' l. o/ w' W* \ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% m! y; `% N) K
9 @- g9 [7 o& o[$ E* t' h( M( q E2 j) g& Z. M
. m% w& O$ j$ m' E! s9 o
do-trade
( n* L- p4 B+ t* D F
$ a2 ?2 O) u, j1 \. Z& wupdate-credibility-ijl
7 ] f, f/ y, e6 l! U' ~8 U- A. P8 p' Q% ]) D) c
update-credibility-list% [/ ?& d+ |4 j* G' k" P0 W$ l
6 w7 N$ E" K8 T5 t3 v
* u, I3 x) o( k& y; jupdate-global-reputation-list8 H5 ?/ a \9 `: Q& C8 \- O
4 z0 K9 S* l/ q. E6 k
poll-class
/ k% G! a0 [6 d2 a7 ~8 S7 d; H" b: h; F, R6 H* S( A2 X$ S
get-color7 g" G% u! h" h" v* k
' k% |4 ~5 J* {$ h4 I
]]. b1 w5 G& w0 Q. z& W3 O- `' O
p4 I/ j! V" C4 I' [ u8 [;;如果所得的信任度满足条件,则进行交易7 h. o% w2 S6 \& i! x7 V1 v: b
2 _0 B! C- n6 e7 E/ m& J
[1 e3 _6 N% q+ z/ R6 Z6 r/ p
& R7 m# ?/ [, |% _9 B! G
rt random 360 t! v4 m6 K6 X) U6 Z
% h& i$ C, b4 C& O0 x- s9 L, X
fd 1
' l% W- ~ b( @. U3 d/ e
. @1 m7 T8 U0 I1 `9 t0 C% w! r8 C: Z]
1 W- ]0 S9 T+ |& S' J
) c; R1 b, B8 Q& |4 `end7 L. N4 [9 E: g9 Q4 S& j* C
4 l& g& P2 ]. q) l) _to do-trust + W. g% @! l6 h" o* K0 G
set trust-ok False7 r& K* M+ N4 J: J# H: T2 k. `
. C: [# I+ Y# ^. W
' E: _5 f! A- ~( rlet max-trade-times 0
* c( V$ N8 Z3 _0 y* Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. ~( _9 T: U% j1 X! b7 jlet max-trade-money 0" @ h% b6 W1 s ?$ f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 E/ p# w/ O2 i( M: F1 }( t/ Glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 \, x/ g' o: }* l R2 ~9 O. @! P$ p3 w9 p8 X: a: p. z, q
4 L: \& P% G2 [' m6 [8 a4 k
get-global-proportion8 S3 l: e; H: U) _7 r
let trust-value/ a# b: K0 k, F( i
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)
/ E% T3 G5 ?. l* h. r( R# m" Hif(trust-value > trade-trust-value)- |. U' H1 V! V( E, E7 i* I7 }
[set trust-ok true]6 Z. {- J8 n$ G) Y$ h
end
+ `- Q e: S$ B: b+ X7 u$ j+ u1 t1 Q9 |6 [! i0 o7 _5 n" I* j
to get-global-proportion- @' Q8 b. j; Z9 |# A+ a7 \; G
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- y6 v4 T: T9 X& U* T- U$ a5 A
[set global-proportion 0]; P# x0 E% g' Q+ ] w
[let i 0
# @# g4 @/ W: H* M% ]let sum-money 0# z9 a( _7 f/ J- X9 i0 y4 J6 M
while[ i < people]7 c4 ]) P' C* g& H8 |8 c* ~
[7 ]# t6 i- u8 t7 C1 Y& O
if( length (item i# g5 ?; C) N# e4 ^9 A" J
[trade-record-all] of customer) > 3 ): J; f- _- ~5 k0 t) }% G
[( X# b3 E* j8 `4 X8 @1 X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& n, C; \' n: Z! l3 Z
]
4 U7 N m% \( z5 g& B5 t* k: D]
2 \( u+ P2 H& r2 N1 }let j 0- s# z4 d) \: m$ u/ |/ P6 [6 N
let note 0! O2 Z1 Q- e8 x; W5 D+ v8 v- n+ T
while[ j < people]2 _5 R- L1 A* [7 `1 A2 k9 H8 f
[" M: l8 L/ `& t7 `% j' A: E) O, J1 h
if( length (item i
$ e" l- H- I- E4 x: P) A[trade-record-all] of customer) > 3 )1 B/ Z) l: {5 }$ U
[8 U' Y* t0 ^: x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& y- D" u* T" Y ]* ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 U7 F, E8 e1 Y% @ h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: S8 p7 {+ b' O9 B]
! L+ K4 @3 U" O- ^]
. g. y& k r: q) w: Tset global-proportion note1 L: P q5 k1 C% P
] K* c7 ^% N H
end
% P: Q. |* L( V( p+ I( R5 q8 P9 {9 a. A
to do-trade
0 ^$ i# v& L* p4 W1 J3 d;;这个过程实际上是给双方作出评价的过程4 v/ O) }' A7 ]2 u* S2 E% R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& y. C& v' p1 Z7 o+ P& v6 Z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) q- f1 `! y0 c Pset trade-record-current lput(timer) trade-record-current
) c' _- u9 A" ]2 N$ ];;评价时间
# j$ W: v, G- dask myself [0 {. i! h; \ `. u$ A$ j- b
update-local-reputation2 c4 G5 E' X, b) z, Z6 T
set trade-record-current lput([local-reputation] of myself) trade-record-current5 D q7 w ]* d% J0 B
]
5 |4 p3 y$ ]1 _1 \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. D+ O0 E+ J' z4 I8 E/ s
;;将此次交易的记录加入到trade-record-one中7 x& _! X4 ~- n' Y" m& q' l* P, v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 r6 E: O7 d, `) E! v7 K
let note (item 2 trade-record-current )1 Q9 u) m; ^+ T
set trade-record-current
f. p0 | R: n0 w(replace-item 2 trade-record-current (item 3 trade-record-current))& S' o; h' a8 s4 L/ {
set trade-record-current
' b; J) w6 q/ b) a3 E(replace-item 3 trade-record-current note)
8 Q6 G4 t! @/ J3 a. M' L3 [, p! n5 R& D5 L- J
' I( ^- {' c. ?, c6 w+ Z/ H, v
ask customer [
# F: Z: T' A0 ~update-local-reputation% ]. [$ Q6 J$ m s3 C7 b
set trade-record-current) B- d7 i9 ~, c9 l4 a
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " f9 M& D1 w( \3 M4 v5 o' {
]
/ L/ u8 I- X" O) _
& k; O/ Y' c1 B" \8 c6 ?* I$ w3 G& h
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 h( w$ p3 A, b4 o0 r) \
) x- a ~% [ J! _" r# lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! I% R1 \5 c+ q+ h+ w
;;将此次交易的记录加入到customer的trade-record-all中
; i$ H: l/ @) q& C' yend
# m9 |: B3 \0 [8 t
Z+ f# d: ^# n& Z6 ?$ zto update-local-reputation
Y4 \3 Q9 O" K2 Wset [trade-record-one-len] of myself length [trade-record-one] of myself9 a; n6 j$ R$ v$ ]* x
& Z: Y3 F" Q" E' k2 i
5 b7 C. l& A) ^: V3 {;;if [trade-record-one-len] of myself > 3
9 Y) Q& z: F7 k* R7 C3 kupdate-neighbor-total
9 H2 g- L9 h' i3 x/ \% ^4 c r;;更新邻居节点的数目,在此进行- F' l" `# {$ M' r. h! l$ F
let i 3
/ R* {! b7 F- }6 Olet sum-time 00 @. f8 ]. L4 L4 V d- ^+ K/ K6 D& D, \
while[i < [trade-record-one-len] of myself]! D- j) v& T( l" e& u
[. i6 i0 y# f% _% X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). G9 ~2 X' ?: g, r
set i7 R/ a9 A" q* L0 v$ o6 i' k4 ~
( i + 1)
+ v; H7 l) w9 Q3 H* N/ I2 n$ }0 P2 S]
, x* Q0 Q t. h/ B. s0 Wlet j 3
( B+ A: ?, N. S3 s6 d, p& o- t" l" klet sum-money 0
# V' J& E* v, f2 t/ o' T7 v2 L+ [while[j < [trade-record-one-len] of myself]; b- [' }8 p* r. M9 ^+ [
[
" n4 I1 l! H% t2 P' ]( P, Nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time): v/ G1 l+ i* \ {* o* ?* [
set j; M, a3 o) b, G- t
( j + 1)
! C! n; I" s+ d: W4 {) i- A% ^]
' x: L/ I! N( p$ |- Q8 q3 Alet k 3
3 h$ q: ^( j7 O* Klet power 07 d) r0 [; D0 }+ D7 `+ o. J
let local 0
# m2 g( G4 p1 d0 L) p8 K& i( Qwhile [k <[trade-record-one-len] of myself]
- a7 @3 R. w3 E( y% S! g[
1 B/ p# W; B/ R l* k8 Dset 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) ) }, r, h7 ~5 O5 d$ |/ d* }8 m
set k (k + 1)
* ?7 p1 C# j9 T$ f0 S]
3 q8 `, B: e# Gset [local-reputation] of myself (local)- T- z1 O4 g4 |# y. Q- U1 F
end
2 H3 `' t, l* V% ?" q6 d
% f, r1 R3 e- }# Y4 bto update-neighbor-total
) Y, Y' |8 F) P: r7 w: ^5 E5 d4 t* i8 m1 B" J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 L& F' D% {. m; y- C9 g9 e
: |( P6 _' |& W$ k7 [8 s Y) C9 O5 l
end) C, o8 p0 l' [0 R0 ]2 J
% s* J' n) c' G# O% z
to update-credibility-ijl
5 i9 c' i) H1 z' H4 X5 s& p6 z* ^# i4 \0 G3 m+ G+ q6 e* t2 q
;;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。$ X: B+ ]) T' K' v( X4 ~" E
let l 0
" C+ j e0 y6 G) u8 j8 g: hwhile[ l < people ]' c% ?! @# U3 F6 m) 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* ?# Q) J5 P+ E" h$ R+ B0 o6 E# a; l
[3 |; C& Y( B, Q0 O
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 }5 Y1 |: _# X1 j# S0 c
if (trade-record-one-j-l-len > 3)
; {& T, r3 i$ {0 g6 G, i# q% J$ Z* i3 g[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
e. v- M5 `: E& ?; ^let i 3
. H( F6 C6 c) G( p: ]( xlet sum-time 0+ m" n# I O7 n
while[i < trade-record-one-len]4 x/ k* d' C6 d. k R4 G% D
[' p4 b/ h7 d8 s: y- a6 e* N
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ b7 X* E. M! e* @# Tset i
5 D/ V, U; C9 V0 L3 ~/ [( i + 1)9 i5 y2 I' d3 I: P
]" l6 e* W, m, n! B, s7 z: N- n
let credibility-i-j-l 0
2 P, ~0 m( f4 |8 c+ x8 a4 d' y8 o;;i评价(j对jl的评价)
, \% F1 o4 @- mlet j 3
: M! j8 B" ]2 {. S* s- Jlet k 4
( V# Q: o: f: \5 X) Swhile[j < trade-record-one-len]
* N& d4 B6 E- M+ c! X( @$ e# f L) K: `[7 s0 V. Q: j' \ a( Q7 V# C
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% }3 z( t' G% `
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)
0 u. A1 t1 J5 ?" l Tset j! {& `5 b; O% U+ ~1 M5 R- j
( j + 1)
3 J' x. c) J. j$ E4 w/ S- ]+ R]6 \/ G5 @7 K7 i4 U. c
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 ))
' z! ?( E2 Q9 T3 D$ p. t
* V, T# ^& _+ d8 C0 ~9 Q
+ Z; l* j: {7 B$ v" W) _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( |( [1 S5 E4 u" E$ [
;;及时更新i对l的评价质量的评价
6 \9 B* H7 I# [+ `5 e. iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 x# g* F0 P( a
set l (l + 1)& [$ i* \9 ^9 ^8 T) D/ x7 H$ r8 K
]( q& y5 i* e8 P" p
end: h3 M! P# S3 J( d/ O8 k5 q F& l
" ^( u5 F# Z4 ~( S; n$ g" Bto update-credibility-list
2 T- w1 h* R; T9 nlet i 0( I/ g; ^$ _+ {: q
while[i < people]
. A9 z) z) @" y[
! o8 J T6 Y1 N8 Plet j 0
2 w: n% f6 h6 Z" \3 N$ Dlet note 0( Q8 b7 n) F2 ]5 ]
let k 0
" i% Q2 m; Q& O- K- l1 v! V;;计作出过评价的邻居节点的数目0 V b1 @+ U, |7 j5 p7 I
while[j < people]
! S% A# ~( s7 f1 L& w2 l[+ ]% }" d: _ A" @( |
if (item j( [credibility] of turtle (i + 1)) != -1)! r5 b6 O2 ]; c: K5 }. R! ^9 o
;;判断是否给本turtle的评价质量做出过评价的节点
* K+ [7 R1 g# b[set note (note + item j ([credibility]of turtle (i + 1)))
& f) D1 e( u+ F7 P, D;;*(exp (-(people - 2)))/(people - 2))]
& {( _* X5 B9 w" F7 ]9 u) ~set k (k + 1)
4 d5 }, G" p0 \& E]
: D6 X) \3 n: {, vset j (j + 1)3 `0 g" _' r, d* y
]: \" V: O" V) a; J$ P& F7 h
set note (note *(exp (- (1 / k)))/ k)* X/ ~$ T6 H1 |( L+ @4 I
set credibility-list (replace-item i credibility-list note)# x; o) R! H/ I# Z( n/ m: A, Z7 |
set i (i + 1), y: h2 q @2 z: a5 d
]
& t& |: M% J1 w4 send4 o% g: J y) ?8 `- u8 H; g1 G
3 P' W% z' x+ l' g
to update-global-reputation-list
+ g8 H, t" ^7 U. ~let j 07 l0 w0 R& r; q, F7 K+ N' N
while[j < people]
. g+ X, }1 L) m8 j2 y[; z1 O; J' x+ O" Z5 ?' @
let new 0: e! u" l: A/ K- D- b$ e
;;暂存新的一个全局声誉- d5 [+ y# t$ ]* A3 j! H8 T
let i 0
& V5 Z: S3 N ^/ C8 `. J$ Flet sum-money 0* i" }5 k# N+ G( {
let credibility-money 0& ]6 f1 G1 ~3 D
while [i < people]
4 c3 t4 {, [$ V$ M y4 Y5 a[9 P: T. n8 m+ `/ a7 d Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) V8 U5 v+ c B. U7 h+ Uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) U6 e2 V b4 x M* \ z9 [
set i (i + 1)
3 w9 \4 F7 ]: V]
" j' w0 I/ t5 p5 Plet k 0
/ k) l5 d" o5 \+ @. H5 o' L" clet new1 03 s$ H* j/ z/ C: o% T7 P
while [k < people]- J9 X$ H- {0 i' X$ b* O- C
[
2 K7 _0 r8 v4 _& _$ x0 jset 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), t* } W$ @: O) M0 v) h
set k (k + 1)+ F9 [' O% M- y9 h
]' w5 y$ X8 W% k2 Z8 Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - _ ]0 Z5 F& g5 U
set global-reputation-list (replace-item j global-reputation-list new)! k( V) k) y' V7 A/ h5 G% G
set j (j + 1)
8 ?0 p! t! k2 d5 S" m5 u Z]/ s2 |( Y# z1 m% l4 m: O8 l1 u a
end
7 g7 a( x5 W, _: [' u) a# D
$ |' _ |1 t. \+ w) K& U+ X
: G9 ~3 S9 C! |* e5 @& i. Z" a4 b/ M; Y+ T! D2 [2 r
to get-color
# m. E9 r) F* H2 D+ l4 l
2 d- p- ?% H& Y# l4 R) s& {# a2 ^set color blue
! o: |3 W8 |2 G0 i: M. aend
4 b6 x% e1 h, ^5 M7 o
2 `/ h3 I9 c; q7 }+ b2 a1 }to poll-class! P, c8 C9 q8 i/ `; `- o' g
end- [1 w& g; W6 e D
- Q: ]+ r- U4 @1 u
to setup-plot1
, I$ u/ M) K/ K& w3 E! B$ |. K
6 f: R' w h4 v C- k2 B0 yset-current-plot "Trends-of-Local-reputation"* c# v0 i9 ^0 }) t7 O& n
- E. Y* y E- `% F& @' qset-plot-x-range 0 xmax8 l; j) }$ S( l3 M) \6 v
* D3 ]+ P0 n' a9 Eset-plot-y-range 0.0 ymax
' E% v1 O6 s2 K |. Mend
" ^9 N# T) O8 U; ]' u
A) J; D h6 N9 D, q# e* a wto setup-plot20 j: M0 t3 p- y7 N f& w+ ?
; X( x2 X- @$ T$ Hset-current-plot "Trends-of-global-reputation"- y7 t1 P. T# P @/ ?, B( {8 Q
3 a w" B2 h+ O& j' i: d2 e& ?set-plot-x-range 0 xmax/ T' \0 V! V" _& z8 u, j {4 F/ ?0 b
( s/ a( O( C! V! Q
set-plot-y-range 0.0 ymax
) ` B+ v# r# G2 B3 }$ O5 B1 Send' p& @5 [/ v# P4 L9 u. ?
& Y3 R3 V1 G6 R& W( m
to setup-plot30 A, R/ O: l3 D2 L6 x
' u2 _8 E* m+ k3 i5 i1 L
set-current-plot "Trends-of-credibility"
- {! {9 v4 F: ?5 w* H5 g+ f8 E) y h/ P7 o' h
set-plot-x-range 0 xmax' _* N4 c+ u" e4 V% s, x- m! O' d: M
! Q3 A3 T9 [+ |/ W6 B9 @8 rset-plot-y-range 0.0 ymax7 W! i) x. d+ i M
end
8 U# j9 u& c+ M0 {% R5 P
& D( ?7 A% w3 A+ e, v9 V1 [% E* dto do-plots
3 u9 R& g. x V9 U2 f9 uset-current-plot "Trends-of-Local-reputation"
5 {4 Z# k' v( U: lset-current-plot-pen "Honest service"
! E s0 W9 J+ F+ Y8 |/ X- fend6 a) r- B- I) a Y9 a' e6 }
. U8 F' S8 T, O0 ]; `9 C[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|