|
|

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' K5 W+ ~" V5 c! x8 q) \
globals[
" [" g0 m0 C, E+ [% kxmax
3 N0 I/ \4 d9 T7 D* Hymax! h. @7 k& i1 X, l5 \
global-reputation-list
6 j) c3 j1 x5 W2 t6 L' d7 J+ N2 o" o2 v- W
;;每一个turtle的全局声誉都存在此LIST中
s% ^% S9 u2 y. X( V# G5 E. p* Fcredibility-list
1 {0 `! A! W: H: \- W;;每一个turtle的评价可信度
! O1 M N1 E/ r9 K. w5 S1 ]honest-service
9 F& S- l8 E1 Xunhonest-service
' N1 @. G1 I7 `& S8 r, v+ Aoscillation
; J* C! c% P, t8 o' a8 Prand-dynamic1 e- e# @; F1 q6 O' H( |& P; z: _
]
& Y6 [( ]' F* _& T! e4 f1 r2 H- r: f. [
turtles-own[
% W* b$ b* ^$ `$ a& Xtrade-record-all( k+ J$ R( f, d( D# N7 L$ ~, w
;;a list of lists,由trade-record-one组成, e' J! k6 X8 L
trade-record-one
8 G' y) J4 ~" R: `7 u;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
\ {1 {# c b2 Q3 I- C' g: Y4 ? ?& h U" 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]]% D" j9 [) }+ i3 s7 U
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]$ S. A+ i0 k( \7 k
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
7 z0 A5 @" j3 H i1 {% jneighbor-total4 M: n; t5 j# Y+ @, t: ]
;;记录该turtle的邻居节点的数目- r: _# D* w# E: C& g
trade-time
" C% Q: S' c" Y* O! W;;当前发生交易的turtle的交易时间% \0 r5 {4 @5 S$ c9 u2 V p# y
appraise-give$ a% [- I- I6 X2 J' }/ i/ V$ m% o
;;当前发生交易时给出的评价6 q1 T2 _ g- z( e+ ~/ W
appraise-receive, E) b q y+ g: G Q, W
;;当前发生交易时收到的评价( x( O6 }. G, ~3 ?1 m
appraise-time
: M; {3 j1 H9 z9 _* y! N2 j4 G;;当前发生交易时的评价时间2 Z1 \" r! a! P8 O# Z* P! U
local-reputation-now;;此次交易后相对于对方turtle的局部声誉2 ^! K6 i) i# H& P" G* t& `
trade-times-total g0 P# S2 L; i+ R3 d, v& ]
;;与当前turtle的交易总次数9 G' B! p9 {' X" f" R0 F
trade-money-total
# J* ?; h5 N0 h;;与当前turtle的交易总金额
" g5 |+ D/ |# Y' ~9 X1 `local-reputation/ @& U/ @& o2 ?
global-reputation( t3 I; f! z' Z5 B& g" ]) o
credibility! U0 B x; r+ n* N) x6 _" h6 S$ z
;;评价可信度,每次交易后都需要更新
" {+ e+ U, q9 Y8 Q: _* {credibility-all
6 K8 Z C4 }, H6 I0 b$ m& 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% R- G3 o; G* L4 U: y6 f
7 O& z, d' A1 ~ o
;;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0.56 Q; s0 f: S0 ^9 c: ?7 P
credibility-one
! k% R9 t/ c6 B0 s0 k1 ^" d3 M;;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5 H, v1 w$ {5 u* P1 X
global-proportion
6 _( @0 Z% e4 M" `' e3 xcustomer; [* Y( \3 ?7 w: a3 q- d
customer-no
: [- w5 u- G5 g7 l( z& ~. etrust-ok
; [9 R+ I+ {1 [9 H# {( dtrade-record-one-len;;trade-record-one的长度
7 o# O ^4 u2 E- L]" u/ v; d# ?+ q# {$ ?* g1 P" k8 j
0 ?2 W S, O9 K% J" s4 E
;;setup procedure
' L" I' h) [# G5 a: b9 W/ Q- v% {+ Q, X/ k/ t9 |( ?, W
to setup, P: V$ J$ `$ t/ v2 P
* v, O& M9 R+ H# }
ca
( m! w* g: H1 j1 F* {% P1 O1 r
) j2 `* K" w3 k, J/ kinitialize-settings
7 Z$ }" R1 h ]# X% H1 r3 z4 @9 r6 X" G; ^; m) I1 O: \
crt people [setup-turtles]
% D3 g$ F* ^, n7 R% u! m1 Q2 G6 b: _8 j2 w
reset-timer
5 M, Z: U( q9 ` L
1 A& T: a* U$ N8 i4 hpoll-class
" {0 h% e8 @7 W: h/ J$ c6 h2 }
2 |& x+ l7 }2 ~setup-plots
* B4 x0 `9 M5 W2 N" w; Z7 `8 v5 l, @0 C: Y$ e) H" i0 m* P
do-plots
0 I9 Z5 C4 A+ x: r* Y. Zend
9 f$ C, a T$ b+ R7 L& ~' ?8 R
; z# S0 I$ y1 A/ wto initialize-settings
5 e" R3 D' G4 |" X; @4 @9 ~6 ]4 l
set global-reputation-list []
% d$ D' C( x6 i+ Y) e# G$ P$ |! X' T7 p I( @ n
set credibility-list n-values people [0.5] |& Z6 F0 {2 J+ P( } y
6 r, ^' c) ~, y
set honest-service 04 r1 Q( \3 P& O- t+ H4 U2 K# \3 k" |
% f, P' i! s% x2 hset unhonest-service 00 u7 H, h3 z( d; F
# k' B M2 r. t1 z D/ E
set oscillation 0- b* s" b4 S8 H+ I+ u
8 p* Q) ~) w7 w4 x- r% r
set rand-dynamic 0
7 N! c6 n P0 X" Send
3 I& }' G5 V6 I3 Z; Q% c
; D$ M1 @' h+ X! S2 Hto setup-turtles ( {# U. T1 y1 O( G5 o
set shape "person"
F% j* y9 R+ P+ K/ ~: E* Asetxy random-xcor random-ycor8 X! }! R9 y: Q5 _* ?
set trade-record-one []: ^1 k, W6 ]" {
& a4 K0 p- r/ w% q- ?1 l: iset trade-record-all n-values people [(list (? + 1) 0 0)] % C& A% X5 j: O4 Q# [3 m! s
1 W) f f( f/ C" T! ~& S
set trade-record-current []- |% ^& C( t# [1 X1 w* u
set credibility-receive []
! L6 q8 e' h0 `set local-reputation 0.5
: p' n4 g f) K+ H$ d% H% qset neighbor-total 0
9 s. o4 C4 |8 ~. {set trade-times-total 0
4 S* P6 j; R0 |1 W3 g8 i( eset trade-money-total 0& ]0 S* J) r, }
set customer nobody9 o$ L/ Z% V' y- L% j( \
set credibility-all n-values people [creat-credibility]
! x5 s0 ?( U* n' qset credibility n-values people [-1]' y! u( P/ h& d! F1 ]+ H, |
get-color
' H% C) _/ f( R3 d% C/ i" C) K' t/ k2 O7 Z" s4 ^5 f
end
$ V" U, I" S. D3 H5 d# m' O2 s+ F( z% m; B7 f' M
to-report creat-credibility
2 ?6 z& k8 x3 {5 }, t$ Vreport n-values people [0.5]5 ~* |9 |( u$ D2 z, Z
end
* F2 B, ?8 V+ x% `. s7 |+ S/ d: q: K* S
to setup-plots
+ y% Q3 U; G0 D. K U1 q+ [6 ~( ?/ `/ L; O5 p: c. I" k' n7 _/ m
set xmax 301 B! ] H, s" X
! [) K6 p' f/ D3 s& C0 C( }set ymax 1.0
# q8 m! o! S+ L
& s- O! U- x) L' z3 z! p% ~clear-all-plots5 |7 W3 M E3 d( Q3 l
+ A0 l( B6 ?6 @7 Y% Vsetup-plot12 D1 _2 J0 `1 F
& s6 l1 S6 B( ^2 ^
setup-plot23 s- f) _0 u2 L a1 X4 V6 {
! \% q4 m$ H% z( U G o
setup-plot3# ]# [( l8 M a- k
end
: M# }, {" u9 q9 m C# Z- x3 W) e' o+ ^2 _; O
;;run time procedures
1 q, `3 f- _3 @; F7 G$ {5 n! d* M, r% I3 z
to go- c2 `- a$ A: f5 y
Q8 w I+ F# L4 k: w; W Oask turtles [do-business]
/ l/ D' \/ o/ a* h: Rend/ P: L0 E/ t; A3 Y2 H
; `* a, A: H' m' O1 m; ]& ato do-business / R- Y0 l' o+ }, H+ D( y, ]
/ w5 ?& e: k/ g) U
" X. a8 |. ^! q4 ~6 ~rt random 360
& w' C- c% w7 p' L# v J, N2 Q( k( q8 C( g: C- r* h
fd 17 T( s0 ?/ o7 d* U/ c
; R" h8 O9 P8 @1 u6 {, h, gifelse(other turtles-here != nobody)[
! D+ _# E1 r" X) F. }/ t! U6 Z
$ P! j+ E1 `. o% x: R* }* \set customer one-of other turtles-here
. l) g8 c, C) a- F
' s$ `. f$ J* E1 f$ X6 F;; set [customer] of customer myself
- V, Q9 |6 B; v0 A
( k$ a* D/ j8 Dset [trade-record-one] of self item (([who] of customer) - 1)% m0 W) c2 b. k# R0 h$ S
[trade-record-all]of self
O: h) ?. X: D* G1 D9 v4 ?1 @) L;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( o9 t: t2 D; M$ X5 b; Z. [- j. Q1 q! u( D
set [trade-record-one] of customer item (([who] of self) - 1)
% @1 S% M4 c9 h( E' l F# `[trade-record-all]of customer
+ I3 |+ L9 m7 l5 ~' R7 d) \7 K- X
1 W, @0 K3 S7 R* Q& a) jset [trade-record-one-len] of self length [trade-record-one] of self( W) u" b- o0 M! g0 G$ Q$ ]
- r; t- N5 w2 K3 A5 S4 hset trade-record-current( list (timer) (random money-upper-limit))3 C4 z/ S5 ]8 z* K
! P p( m& G t9 `1 E; \2 Sask self [do-trust]0 x2 B9 k+ \& U! N' D
;;先求i对j的信任度" l2 z }9 i" F) [7 Q9 O. Z& \& `
3 F6 w* B9 g/ m" O4 J
if ([trust-ok] of self)
! X% {* v, a$ q C1 i: T" T) b% @;;根据i对j的信任度来决定是否与j进行交易[% ~1 t7 z' L1 {! N
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' N" Z7 n: {9 m# N1 {; d' C
! V4 p- Z' W" ^1 _[3 U1 N& K* _/ }+ B0 ^1 N4 @ p P
6 d0 ~. c' F; b$ L# v
do-trade
- s' ~3 |5 w4 s+ L" e7 O
- j* F) |/ F) c3 g& _update-credibility-ijl# Y! x# d8 @; l: V/ P8 x
; c8 k% q* j! `
update-credibility-list
4 X3 U0 d: w3 Y( N$ D( S& D' I1 i% A' w P L* c
& _, [ F" [: L- W/ _( Q ^
update-global-reputation-list' r* ~( u2 k) O) \ p' w
. N1 L w* d+ H1 U1 G( W8 t' Vpoll-class
6 s7 U+ B6 r, W* D
: e$ n. ?; \3 |2 E! m0 C, }get-color2 z0 G; Z. ]! s0 B+ J& _6 f
/ C P$ F* D. g8 |]]
7 X3 E% g z4 j; u
7 Y/ M8 H/ T: `% W, m" E4 R0 r;;如果所得的信任度满足条件,则进行交易
3 J* V2 G$ b( ^! T
; i }" l) h! d1 N[/ p5 X K4 V0 ^* h
) W" o, y, D/ Q/ {% q
rt random 360* W7 V# n2 i6 N# E# L6 K. T
7 M% b1 R( @: ~% \0 V
fd 1
) L" B: t; E( J' g( u8 R/ l/ E3 B1 u5 C9 z0 s
]* |. Y% N6 i3 [
9 `$ [; c; X# ?0 M. O4 j" U
end
8 V( A7 \$ K+ o9 R" |/ y. A7 b$ {2 R; o# ~1 @; [
to do-trust + z8 _: {0 N, w5 O0 b1 c
set trust-ok False
7 s2 M6 l, a' E3 S# F0 U& x' h4 W( C# G/ \5 d- e
7 ^9 ^6 D4 ?' `6 _let max-trade-times 0
0 G( X2 x- A. O4 b' m. [; c- zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' F4 d$ R4 g( Wlet max-trade-money 0
; L q/ Q* ]/ \" ` v' Kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& p& @/ o" E/ X1 S+ K+ m
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ G- |: Y0 ^: N/ q/ I0 h- e. A; W4 R
/ d( y9 x8 X! p# S9 u! a4 L4 m( l7 ^" T& t/ R, E( B0 h
get-global-proportion: z# Z0 ]" @; w5 o2 A
let trust-value1 K/ Q2 U+ r' ~. y
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)
* i! Z D: G o# ^! dif(trust-value > trade-trust-value)& Q6 K$ i$ C$ g
[set trust-ok true]! U9 I" {1 E3 I% M
end
& [- e: I, b8 s8 A* [5 I4 E# B% @3 s+ q6 ]) q. @7 q% a# t
to get-global-proportion
! ~* ?4 u5 K$ |( O# Q; _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* v) s( ~/ }% K+ v9 M
[set global-proportion 0]( ^- j2 m7 M2 C+ G
[let i 0
& [1 L( x9 d4 T) m. ~0 \let sum-money 0
. V; H$ f- v0 j$ m& owhile[ i < people]0 p" l; z2 j; [: x
[/ L4 R* J* i( ^8 P: K
if( length (item i7 j, ], D% q! `6 |
[trade-record-all] of customer) > 3 )
1 j/ U, Z1 d6 v8 l[
( z- d6 _ p8 R8 F* B$ ?- E- L f: kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 [; D- A# V1 ? e9 `$ {
]+ I/ C0 _8 }! h& y
]
$ L! M% [9 f- llet j 0
3 L8 G% y: q, _4 ~5 L# R& |let note 06 f9 ~' m5 C7 X; c8 w
while[ j < people]6 A; `$ k; |5 A Z& d
[$ v, r+ [7 f0 Y1 i+ H1 V1 \0 x
if( length (item i5 @: Y% t! w: m+ [. t# ?
[trade-record-all] of customer) > 3 )
- }! h" k$ k- i; Q% ~, e7 Q* F[3 F# h% y; @6 h6 v- q) h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% Y3 b) |) s3 G) t# D: J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
_* I |, a# Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, O# \0 r7 v4 n' Q4 k]
) Y6 s% f6 ?6 N3 O: a) O]
' y0 V- E. q, [2 e- R+ uset global-proportion note
' a8 ~2 j! K. l5 M4 F) |]
. T: x R/ F* h! e. m$ ?. jend
7 y1 @) v9 ~, z& q( _
7 Z; U6 e( s3 sto do-trade
9 j6 T, E/ `) Q9 h* r;;这个过程实际上是给双方作出评价的过程4 |% w$ l4 T$ ?9 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 ~! I- t! G( H0 C1 v! {7 a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& U1 n: C8 p* p9 d6 k" h
set trade-record-current lput(timer) trade-record-current
; E I. d, I. q: e4 ];;评价时间
7 g5 M& B* K% n: b4 Oask myself [
! v; i) _$ y6 a2 i, I1 [( Qupdate-local-reputation' S0 E# ?4 {9 P4 ^
set trade-record-current lput([local-reputation] of myself) trade-record-current
. U- E( X: F; R, h: J]
3 `( O+ [1 w6 Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: d' |3 Y- B( B0 @3 I2 Q3 z; |;;将此次交易的记录加入到trade-record-one中' i& ~; M ~7 I+ [. n1 K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: ]( i7 K7 y- B# [let note (item 2 trade-record-current )5 D7 z) a9 C4 x3 l8 Q+ ^( o
set trade-record-current! G# w2 @2 K% B/ l
(replace-item 2 trade-record-current (item 3 trade-record-current))
) E8 M$ n" V! j3 e2 ~$ Mset trade-record-current5 P, @( \5 O) ~" {7 q
(replace-item 3 trade-record-current note)
$ Z4 B o, l5 Y$ y
4 o2 n! ?$ K" p5 ]# y( A3 A4 Y5 `# ~) J; z2 L6 F% S
ask customer [( j1 {- G0 j5 ^) ?2 Z; N. w* \
update-local-reputation
% t1 B' A% ]2 U& S! Y! Lset trade-record-current
* h5 ?4 K- p6 ?$ Z- e4 h3 b(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . }) p9 Q& l* Q: W( k
]
( J3 X9 f! E6 R) L. ~/ h; d* u5 X9 W7 R
* t+ w1 O3 B3 u$ k4 u. S9 `6 Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer8 Y o# }9 [, D$ W2 s
/ L; B. i- b# s, Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ { q' p: u4 ]& q7 H/ M) O7 R
;;将此次交易的记录加入到customer的trade-record-all中4 Z9 s" Q. `: _" E+ X1 J- u
end
* d; Y% s4 `( n2 J
3 B z, \" @% M) K1 R+ Tto update-local-reputation
3 j/ l) P+ }7 U9 C1 _ C' c. u3 sset [trade-record-one-len] of myself length [trade-record-one] of myself0 [- \$ |% i8 ~* F9 p3 u1 [
9 u. R/ `4 \3 b# _* I- y2 e. V0 j
;;if [trade-record-one-len] of myself > 3
3 A \. Z" o, D. Rupdate-neighbor-total8 m6 y* z2 B r; Q. e4 v$ ^
;;更新邻居节点的数目,在此进行 |2 T( c9 W4 a6 w- b) @& W, g2 ?0 T
let i 3
) H2 N( R9 W% u8 blet sum-time 0
, F8 | q1 P# f% _) H6 Z. zwhile[i < [trade-record-one-len] of myself]
; i) ^: N) T% U. p0 |[8 P, K! h' s5 F! x. g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ M3 v" j3 w6 C% L
set i1 h# ~& W/ j/ \, E# a: E8 C
( i + 1)- O6 B& W. y a
]6 k" {5 L+ X. h, [3 a# w$ ]* q
let j 3
0 R) [, c1 }' t& [+ jlet sum-money 04 w, w- s/ W8 I) d
while[j < [trade-record-one-len] of myself]( K! R+ J. Z% y1 h U# v' m
[3 l$ r4 N- M0 c0 t
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)9 \( y. _5 N1 ~
set j
, F9 s- ]7 p, ^( ?( j + 1)8 l/ L h* F/ H( y7 w$ u' u
]
5 _" l' ~5 d4 [+ Q+ B6 Zlet k 3
: d9 `( l! ^" slet power 0
2 e, j i8 [6 ~1 g& A8 o- Nlet local 02 L3 f9 @" }2 J* G% A; Z( k4 K
while [k <[trade-record-one-len] of myself]' P: h7 a; L( Z/ X% X# ~
[
+ i' }6 r6 h6 K) Fset 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)
" P9 v J. w9 X3 g7 k9 A rset k (k + 1)+ l" y0 c3 o @( u' N# _
]3 R% a( ~2 ?3 O% M
set [local-reputation] of myself (local)
1 T( x' H1 e" w& v5 n1 z& Qend# Z: T5 V, f; B$ k' m1 A
7 m7 ]) i% @6 \' g% xto update-neighbor-total
# @( g/ ^( o, ]+ d2 _: [& S. v3 |: d, g0 ~
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 R% i* @7 _6 `2 p* g; p! E V. D
: v( ^0 ]+ f$ A5 S
) M& R/ m" c5 d
end
7 B) {, }, |4 E+ P ]6 I
8 F! C& `/ p2 c3 o! i1 T ^to update-credibility-ijl * p, T2 B: N8 {6 `
. v2 Q7 F. v9 C;;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。, i9 z% H% D( e
let l 0, j; v0 |% A8 G* o# _
while[ l < people ]2 _, `, o! d5 P
;;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
6 Z9 o- F" e- b( U7 W1 n% K[
. o5 e, k4 i0 z8 P4 d3 [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 j* U. ^4 M+ T* r9 o
if (trade-record-one-j-l-len > 3)0 K A \- X# a3 L& J( I6 N8 k
[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
, j7 c0 ~( w% `( x7 S. nlet i 31 ^2 N" M, t( [: m1 G( e+ E- {2 s, n
let sum-time 0
1 b: H1 d4 g8 j2 M. z) m, Vwhile[i < trade-record-one-len]
' r6 S* b. ~2 a- Q1 Z, B: `[
0 H' y9 G# D( C$ L2 z1 f6 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. w/ a5 v6 }1 @) c% c: [1 c/ C* \( Vset i
2 L2 e/ Z; o) } O! n' I3 S/ F. q; z( i + 1)) {* w. h; t. Z+ ?5 J& M
]8 ?3 K3 x0 K' E2 }
let credibility-i-j-l 0; Y4 ?; j% d# V/ W& a2 Z. g- U
;;i评价(j对jl的评价)
3 c* t5 K6 c3 u8 b) u+ j' ?. @$ Ulet j 3
5 }/ D4 \. N/ ^3 r# ^, J& ~0 |8 Jlet k 4
. w6 F" @9 O' x8 ^/ b$ \while[j < trade-record-one-len]
+ e5 ]: q! e. J! W7 v m3 E[
+ p, L( W l1 z- ewhile [((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
- w) e ~( Z* w; x. Zset 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 p$ R! T2 y/ uset j% c4 H8 n: c* Z( J2 L- R
( j + 1)2 v- `& [" i! f% x
]
/ L: q$ k4 A1 ~ v! W$ T$ U+ eset [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 ))5 D; K2 Z! |( g- i5 ]+ c, C
9 i, ~, Q7 p( s' W- U8 V: l+ H: h1 m0 P# w
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), p& Z# B% V5 V' H+ h/ N3 u* I! U) l
;;及时更新i对l的评价质量的评价' W, s* C0 i7 U) E7 S4 T! O6 o3 {! R0 `
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ T% R- {# r6 r# K" Q: S0 n
set l (l + 1)
0 J" r8 Z, f) g* V]9 F2 c0 i4 y3 ?2 u
end
/ e8 `1 k8 S! d& ]3 J9 _2 J, r; [9 v4 E: D
to update-credibility-list* v8 e. L% T, I. D4 `
let i 08 M# D+ O$ ~$ ?0 W& o& B* ]
while[i < people]
# S: g4 f- R2 y! W0 O4 k2 e+ i[
" F# l$ X2 \+ `let j 02 U! ]2 V5 N, T& E
let note 0! S; U; t1 U: @* c$ L
let k 0& G; T4 N/ @& \; `$ o9 E
;;计作出过评价的邻居节点的数目! P6 Z' {# S4 _! J9 @! e
while[j < people]; L* M: l) I( M5 k2 }5 _- J& V& Y
[
# z% j$ R1 L5 F* p* ?if (item j( [credibility] of turtle (i + 1)) != -1)
# m" G5 M6 F5 t- c;;判断是否给本turtle的评价质量做出过评价的节点
4 o' w m# u9 }! K+ V[set note (note + item j ([credibility]of turtle (i + 1)))
+ g H8 O" M% z$ j" @;;*(exp (-(people - 2)))/(people - 2))]
- S8 h) r3 ?: k% hset k (k + 1)% L3 J- i. x {
]
8 A0 g4 _7 j7 e7 }+ V) `2 Zset j (j + 1)
j2 R+ o& l+ ~2 s]
2 m2 f: L3 y1 o& p0 Eset note (note *(exp (- (1 / k)))/ k)9 D- f( D( \& B
set credibility-list (replace-item i credibility-list note)' d! @* s6 O2 U2 @" G
set i (i + 1)
' V8 E0 [; q" j0 |. y) }0 `% a]9 F3 Q' ~6 @- J5 p; v' d
end
/ L1 ]) _4 Q1 z" R8 M9 c$ {+ O1 N9 j" W+ U, D' n
to update-global-reputation-list; }, d0 H) ]' i, n4 q
let j 0$ V8 |+ t/ ~1 e# ]/ ?! B2 K
while[j < people]
8 W1 c: v0 C8 A[
& z/ P$ P \0 G/ llet new 0
9 c5 K' L" ^+ B;;暂存新的一个全局声誉. K" y- g5 b9 }. _
let i 0
& f j1 O* y2 V1 [let sum-money 0& A3 ~) r& D0 H4 L1 v Q
let credibility-money 0
, n! d+ I2 F. h/ wwhile [i < people]
. `7 \3 L* _( y( G& {[
3 S5 \* g/ Z( d8 Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 z% |/ d; ]0 G1 V( ]5 B) F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# I: @9 M5 k% p$ j' m
set i (i + 1)
9 x) u. e3 x0 }]
; X5 _% b0 m$ }let k 0
0 h/ z1 L7 B5 _# s$ \6 o% W flet new1 0
. c" n) H% _1 q& @% h( T7 Ewhile [k < people]3 k& [9 J3 I" |0 f [! z/ A3 R* D
[
, }9 P: w% M- ?- ~5 C* kset 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)( { O& _: c: d
set k (k + 1)
( }8 W' c! g% ^( H% |2 g]1 t A" B+ s# b6 Y& l! L$ _
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& ^" O7 D/ ^1 Zset global-reputation-list (replace-item j global-reputation-list new)
7 l6 A6 M/ G4 p) @& H5 j0 pset j (j + 1): p# S9 U* z3 F4 U# F
]6 f5 C; L- [2 R9 H; R$ g v
end7 i+ U4 X: Q( Q# X
/ n* r" E. r; f8 M, @# K( C# R
4 R" v1 N" C1 E; v# T4 ^4 h. e+ U6 g! @
to get-color
; ]# `& J( b# e
) W; V( @7 e9 D2 F8 D5 tset color blue6 J. W/ n S0 Y G& l
end3 R/ I0 ~. a$ a3 V& d& W9 s" j
' Q& z* q' V8 _2 Vto poll-class
2 l* u0 l$ Q, \; b! F x/ F iend' [. X- J$ a$ {% ?* w) C& |& b
8 P4 k- L0 ]6 [# t
to setup-plot17 V- O4 a0 C6 t/ c) @/ i
$ @4 q' ~3 a3 mset-current-plot "Trends-of-Local-reputation"
* G0 X. r/ }0 g7 |9 U) ^1 B+ U
' O r( G7 x% |8 Aset-plot-x-range 0 xmax5 x" i+ S5 }! @$ |& n2 P0 x; I* Y3 k
5 d% P7 m$ U1 s/ G9 ]: S& W, n
set-plot-y-range 0.0 ymax
% J- c5 J2 H ~, r( h6 Xend6 d: J# p: g; y0 U# \; t
% F- s& t7 h6 f0 G1 N
to setup-plot2! {3 c" ]" l0 k& Z# h9 A
/ _5 G: t$ }. H1 `. o% Hset-current-plot "Trends-of-global-reputation"
" r% t! v9 W, Z; d) e
8 P& ]+ H% x$ z& [2 |* ]set-plot-x-range 0 xmax
; ~9 B/ E8 L8 Z# s. c; Y% J! n8 r3 u% l/ f: `
set-plot-y-range 0.0 ymax5 ~: ]' Y5 Q4 W3 H
end
. [- V; Z( N0 \! t q2 k* V6 g v8 [1 L% ]6 f+ X" R
to setup-plot3
" v: [, p8 J) {0 s. |1 u- j4 E9 a2 w; {6 O6 t2 f( R2 I7 w- P
set-current-plot "Trends-of-credibility"4 J5 c4 S* L5 d4 S% X
# T$ n8 w3 }, J7 B/ _2 h4 v
set-plot-x-range 0 xmax
' f# b& k6 ~! m; Q5 r; h, Z+ A$ V1 U6 {& D4 E7 j4 Z# Z
set-plot-y-range 0.0 ymax* ?8 w8 a5 F0 C4 j
end" G, o$ ~0 h! A1 l
$ T, w' j2 u! U8 U
to do-plots
- i. S$ |, {- B& D- H1 ^set-current-plot "Trends-of-Local-reputation"
5 v# I* o! z e# V& O2 Pset-current-plot-pen "Honest service"
- [- p( r+ @5 U/ {; M" K3 g3 Iend
2 t: u9 e' k0 ~6 p. _6 x. M9 ]
% ^8 l" a$ V6 G, }4 w( B& }[ 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
|