|
|

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
; Y" O( U% V& x* z- aglobals[
( g" o5 _7 F5 axmax
}2 I" \% B, g9 a( ?ymax
0 W7 w) q2 n& T5 R8 aglobal-reputation-list
4 Y( h9 F( b0 U6 c7 o& r& r! r) b* u2 z* }; c; c" D& M
;;每一个turtle的全局声誉都存在此LIST中
# l g* L/ a9 z5 a: z! M, c0 A( Dcredibility-list1 [/ p9 N. Z) @/ W" A9 h$ R* H
;;每一个turtle的评价可信度
! p r" N9 v7 \) X. ~* ]/ xhonest-service
8 z1 N! R* J; e2 \: k+ eunhonest-service2 Y& \' c3 \9 a
oscillation3 h/ k/ ?; D; H& s6 @/ v
rand-dynamic! \4 ^ f- v+ B9 H2 s
]
+ }- G9 l8 w; d5 W" m% t) v2 q$ H4 U3 b4 H$ f( _9 d, `
turtles-own[. ^& U F0 B' {) @7 E0 {- D( i9 z
trade-record-all
+ \: ]" y5 v3 B) ?;;a list of lists,由trade-record-one组成! b3 W5 O7 l) E/ f [4 _
trade-record-one2 }5 G9 c" s$ v) e O( ^/ r! i
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ \, x/ @, L# S8 e' O5 x9 \
6 S- z- _& n- a c;;[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]]# z, s0 n0 E4 h% e+ a8 a) B# h/ T
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]
* ]7 f! b b. C4 ^5 e; K2 W; M# Ucredibility-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
# O& y5 _, `# R6 H* _4 b% Yneighbor-total/ ?3 Q' U* c- m6 A; H( _; i$ g: I3 N
;;记录该turtle的邻居节点的数目5 P1 b% {" m8 z; l0 T
trade-time9 E5 M: A8 S; O. G2 _
;;当前发生交易的turtle的交易时间& J$ v( c! G/ j; ?* _' B: Z
appraise-give
0 l: Y: {7 x5 ?7 d1 k/ U+ F' L9 G;;当前发生交易时给出的评价
! X X5 Z" N Jappraise-receive( ?5 M" N! M" Z/ {# N
;;当前发生交易时收到的评价: n) O L; e7 X; Y$ E
appraise-time$ q8 v( B& O, g p) M. m
;;当前发生交易时的评价时间
, a7 s' |* ^/ Y" c/ }- V; p5 `3 slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉 y9 `6 y5 v n+ {4 I3 |/ j
trade-times-total6 A" z+ X3 U3 t! h+ k* Q) s
;;与当前turtle的交易总次数
6 |6 Y$ {2 s0 n3 W, Qtrade-money-total8 F8 P+ s$ C8 [
;;与当前turtle的交易总金额) |6 X% y5 ?$ p6 B+ s% S: L, ]5 U
local-reputation4 e3 M- T( y& @1 K
global-reputation5 ]8 g, N5 R, x/ `8 F
credibility
' b0 u% d' _4 o8 e1 F;;评价可信度,每次交易后都需要更新
( Z! R( K; G; t0 j8 {; Lcredibility-all
& c9 ? B* s$ k a3 `+ V;;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
6 B$ z2 |) B; ~: U1 i! i& D7 C# Z; H( y- l
;;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
7 q0 j4 _- O" H. p7 Z, I8 rcredibility-one
( k" ~0 V6 B4 g;;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 d6 P; e$ `8 E3 v I0 O3 k
global-proportion
+ T' l3 A. d! v8 |& Pcustomer
: | e1 M3 I) J" ~customer-no9 u6 z8 g5 e, v& D4 S" W& e9 @! c
trust-ok( v' P' |. A- a$ \/ I" b
trade-record-one-len;;trade-record-one的长度( ^0 R& K, w2 p' j$ z7 @7 E& l
]* c, `4 |9 j0 ?$ n" @7 }
w7 L9 p* a. D) L( J8 };;setup procedure
! N+ O4 f' i3 b9 ?, k/ |" b& C/ B" h8 q, C) m: e' T
to setup# E y$ H9 h5 Y6 [
, Z4 C+ V; ?5 s5 p
ca4 c1 G' s$ k, M) h+ r2 a
6 ^! \- P7 b, ^: [initialize-settings
& x* G) n+ |5 I( R+ i7 ^. p, `. j g( d6 ?( T) y, I k
crt people [setup-turtles]$ V! F$ D0 ~ F1 p
5 u$ a B% d2 K# [3 P8 f: _! z# B
reset-timer( T. c4 A' J% s+ [
6 {! B9 _6 I( @( x' d0 e$ G# j
poll-class" O- z m# b- \6 h4 f
; R3 Q" a* S, p
setup-plots
; j5 C7 g" V& }* c. m$ t0 W- S% U% r2 t
do-plots U+ U |" ^2 G( ~
end
2 r4 k7 b* o- L3 Y# z
, w1 _& S$ p% [to initialize-settings$ |; q d% @6 _# n+ z
* ~1 B$ G/ M% S
set global-reputation-list []
- Q) T1 Y$ L( R
% K" c+ w1 ] ?9 pset credibility-list n-values people [0.5]+ g% H, J8 q# w2 c2 h
, |0 _) ~7 u* s5 r& mset honest-service 0
# G( `2 O$ ~3 R$ M+ o7 l4 f. } {# K8 X4 r$ v
set unhonest-service 0
& t- E+ J: z* }
0 ]/ }' b6 E2 R' u# J7 Bset oscillation 0
' R2 }2 y' {( @: W" E
1 [3 o. \) K- A6 P9 a2 }set rand-dynamic 0+ E. X; X0 `; w$ h2 P
end% k. f# j6 l# Z6 x5 x$ V
7 V% H1 K, |$ Z! Pto setup-turtles + u4 `6 \2 B' j B6 ~% q4 z
set shape "person"
4 v. V$ y7 h* m4 I' ]setxy random-xcor random-ycor$ z! Z( \8 ]& E% s$ R" W
set trade-record-one []
4 a; z$ E4 a' i4 |
! E# }" q2 p2 J# L* Z& i& Y7 Vset trade-record-all n-values people [(list (? + 1) 0 0)]
" x/ z* m9 X3 ?* {: V" N( o
, P# o! f4 m ]# q% bset trade-record-current []5 X5 G |, a. z
set credibility-receive []
5 z$ o- r& f$ t" J; Yset local-reputation 0.5- F! F \; f7 M- R) ]
set neighbor-total 0; [2 |3 W: |, A t
set trade-times-total 0
' g% I) Q" r! tset trade-money-total 0$ j# H: u) Z7 h4 L- @! L/ [
set customer nobody
2 Q7 W4 k4 x# q- {% lset credibility-all n-values people [creat-credibility] Y2 a$ J) R( M6 G6 m
set credibility n-values people [-1]
7 U% v$ l6 v+ T, l9 r4 Pget-color' A: p8 U9 l r4 h) J5 b5 ~
: m* R1 w' C' j( yend, h, C4 |: C* h3 ^# ]. b
/ B, J4 G: I e# _4 K0 L
to-report creat-credibility" B- j- Z; [& x2 ^
report n-values people [0.5]
: Z* W5 C1 N3 g3 L# I( Rend) \1 E/ P/ F: B3 v. W3 q4 j* T
Q# q; o) B0 `9 Lto setup-plots" [" O( c+ X* r- o4 I! E( x
" V3 Q S7 I1 H: X M4 q( A- ^) u
set xmax 300 x: o& ]- U* f9 E, p t% N% X1 c
. ^% w1 w& Y; c/ o1 H& {* iset ymax 1.0
4 @& d1 g/ F7 L, m v# ?
0 R2 P7 [% o+ Q* g) w( Qclear-all-plots: ~/ |$ {% ^3 H+ d( q
. A( ~( J8 x: ]setup-plot1
^6 E4 a- G& D7 S. G' G5 o& V6 i( X: C3 G' j1 ]6 {3 B& I; l$ `
setup-plot2
9 _. D( T# R6 ]" o
' }1 o0 C- F5 O* m% Zsetup-plot38 b) l2 S- {( n" {8 y8 ?
end
/ j* `9 E: n" N/ p2 P0 ^0 K* @/ x; V& e' B8 p- u3 i7 q! A
;;run time procedures
/ x E! u4 ?: t/ ?7 u x5 h7 C0 o3 z3 f7 _' D0 {$ o
to go
9 {$ O9 k8 E$ V1 v! G7 c7 D# f& G
ask turtles [do-business]
. A9 y6 D; Z" Q% T4 P, ]6 P2 eend
; V9 E1 J- u3 S" ]% u( v0 w6 X; K+ [
R: K9 z3 D$ Z) ?' Lto do-business 5 }, {6 U8 F2 G6 \# J, V6 x
- M/ D( }0 V' n5 H+ j( \$ [# D! \/ T7 e$ W
rt random 360; Q0 @$ e7 g% w3 Q. T4 f6 F
2 I; d* g) A& M( ~ w2 X
fd 1
" h* G6 r( _2 I1 {: W. r9 A2 v% S0 @1 i) n7 |
ifelse(other turtles-here != nobody)[
: w& E3 R# R+ Y1 m o
/ z) P4 k7 U: U9 M3 I8 @* \set customer one-of other turtles-here
: E, ]! S& P$ ~3 r) [. q- z8 N6 Q; D& I. a7 {' X
;; set [customer] of customer myself
. h) q$ J, o/ X% g0 m8 o( R3 T J' j4 @7 B, g" m& v. `1 M
set [trade-record-one] of self item (([who] of customer) - 1)
2 Z, g8 \, l2 u/ Z" _* B[trade-record-all]of self4 p2 ]% e! S& x9 ]0 ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
8 t, U# E+ [; v2 Z
) P& ^5 b8 i# y; H4 Q. Jset [trade-record-one] of customer item (([who] of self) - 1)! ?' q3 X- d8 C( l7 H+ k
[trade-record-all]of customer
( @2 v% U; _2 k% L7 E2 @" b: K+ y9 v5 D1 }& T# Y1 L6 O
set [trade-record-one-len] of self length [trade-record-one] of self
; o$ N" {/ Q5 |8 G. r' k2 ?1 L& j8 Q3 @0 @4 n( `. x, N
set trade-record-current( list (timer) (random money-upper-limit))# i$ E6 q' d s7 y+ g" A1 S
" @- J5 h" ]9 u
ask self [do-trust]5 Z- a+ T# j8 a; n( Z) F6 X' H
;;先求i对j的信任度* k7 U. f. `9 X; ?3 P
$ ]. A4 D2 Y" y
if ([trust-ok] of self)$ N7 k, T% F" q( w I" {* Y
;;根据i对j的信任度来决定是否与j进行交易[1 H6 k7 V2 D( _ h2 y K+ l2 g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself Y7 v: Z: ?/ s r% A3 ^% D
2 O- V0 v9 b- e- j( ?/ o[
% h/ f, x. M3 O$ Q. B' N, H+ N1 Y7 [3 `
do-trade
$ I5 W3 u3 c4 R" g
6 @8 \1 A) \1 rupdate-credibility-ijl, `& e; x( Y8 i( M8 B
+ U1 c: W( Z$ ]. f. u, t3 }update-credibility-list
( i. a. y$ l ^' v! u" X; [. Z8 @1 O, Y! ]8 v4 a' x: p, o9 O
5 F) p% ^% ]# Q1 Bupdate-global-reputation-list
6 a% [: f2 ^( t% s
' @4 J% ~& g- I, W4 J. s3 m% ipoll-class; V: |, ?; a4 t- o
* y- m6 e& F" ?6 cget-color
/ \; v u% w/ @+ e+ ~' t
( r4 G! o1 ^' K) i! x]]; C x( x0 {: O) C8 `! Z, W
# \- J' y$ G* Y; c: H;;如果所得的信任度满足条件,则进行交易
+ q6 B9 J% ]! f, I5 P8 s
; B) w! }0 X1 i: O6 B[
0 O! u5 m) ]/ g" x5 c9 J3 B" y$ A
- i0 v4 S* d. q2 n4 s+ lrt random 360: ]2 ?! D6 N4 k, G' Y* F
& l8 `0 s: l% X" P1 k
fd 1
; x2 O$ \1 X; W5 h/ Y3 A9 w: E
]
- o6 f. }! l1 p' @
* r. t: \$ j+ I* x7 H$ t: wend- Q, q7 ~! F) \& U ?% {
) l# y h" O6 k9 O0 D" pto do-trust
3 d) s1 b; I) I" ]4 N5 L ]$ Nset trust-ok False. q( n& C/ S, ] F( O4 e# W
3 T9 z. O& R. m1 u: a* K' ^
6 s$ l. H5 u/ U: X/ ]- l h3 Ylet max-trade-times 0" a5 k# b" u. L
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 N) E1 L1 _" K3 c4 \/ y* ]let max-trade-money 0
; o3 s6 B2 T2 f; F0 Y# F. Cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! b7 M% n' r5 Q) Q. L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), b2 o1 F) B3 _7 ?! G
4 y* f9 H& P% t+ F, U* \5 v
/ b" B5 s6 a- [4 ?get-global-proportion/ F4 M2 [. H X0 w
let trust-value( \: `$ N. O5 u, U! z6 ]8 W" N
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)9 [3 I0 `6 j+ F4 a; d$ F4 w* \
if(trust-value > trade-trust-value)# G$ o& }* m' H4 V: I/ u. |
[set trust-ok true]5 Y0 C, y0 B) ^; z, _
end+ v9 t# [, Q; F6 Z- l* f) u' q
' l7 D5 O! f% c6 {: \5 m( O
to get-global-proportion7 b8 H w6 N1 l1 \1 B3 _. Z0 n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ w8 e! j, L9 j( p+ Q5 _* v- J[set global-proportion 0]! M2 j3 t: f8 V. m$ _
[let i 0
, D4 X1 X+ ~7 V4 k% G/ Ylet sum-money 0
* k6 R/ q3 l$ Y3 H6 C7 k# ~% vwhile[ i < people]
# @1 t n6 v# W8 P, P% N[3 b9 C. ?6 [4 E" @
if( length (item i7 t! _: O* D4 Y% W7 |( H+ ]( V3 |5 o
[trade-record-all] of customer) > 3 ); Y% l& K' j: ~
[8 P$ B' O" r3 v5 k0 i
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ m5 x: B1 W/ o* d' J3 H]. f$ f6 M$ F% H! s& m
]1 a, D; J9 u' j) B2 O
let j 09 }* x# l1 K' N. [8 d( [$ w/ L
let note 0
7 T8 K* @- w# S! I' Awhile[ j < people]
5 B% B" f: q" S* K[
8 F) `& \/ D8 e4 Kif( length (item i" ]9 h- r& F- h* q" r: E( p# p2 U& k2 N
[trade-record-all] of customer) > 3 )
$ S) W% r9 T% ~( } {" w! n[3 G, v/ |9 j8 N& k& t* I, n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# A7 y! n3 {5 \% E3 b1 C
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! L) g5 I* A" U1 I+ U$ w& D1 f/ q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% U' h7 D9 p, M& G]/ z4 {& o, `$ ?
]+ s) i& \2 b# P1 C0 _# w
set global-proportion note( T/ {& _$ J3 ~3 M& l0 b, ?
]1 u: b6 Q/ }0 [3 J
end
4 \) E1 F. Z" M0 ^* u
$ J7 ]8 I- s2 R1 ?to do-trade+ u# u0 L6 R% q) j9 `+ e
;;这个过程实际上是给双方作出评价的过程
, c: |8 u& {- i8 ?7 `3 oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; n) X" \1 u0 B* A& P2 M+ L+ \% O# O( `0 ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 o4 V1 p# ^& D" h' Gset trade-record-current lput(timer) trade-record-current3 F1 n" R* [. ?# \/ v
;;评价时间
$ Q( x2 }( b% r( O3 `2 eask myself [
6 g! [' C4 |+ u8 i* _6 kupdate-local-reputation0 t7 u4 Z8 A- W
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 `4 R' X1 p$ T/ l( R9 I5 a) r- _]
' w Y3 D- N- P2 s3 U8 mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* q+ r" w, }( w: T8 m; f7 n;;将此次交易的记录加入到trade-record-one中. {) @# q- E( {9 \8 v, z& h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ c% l) t: K' g8 \let note (item 2 trade-record-current )- z4 i& t U% \
set trade-record-current2 l5 X3 q% ?% v
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 S9 N; N$ a) l, qset trade-record-current& h8 y( E# y# }
(replace-item 3 trade-record-current note)
9 i4 _+ I# b9 P! M! {
T3 Z( z- w8 t5 S) [3 o- b$ \
6 M; ?2 S: O/ e6 D3 v4 yask customer [# ]' o9 J3 H; y1 a2 T I
update-local-reputation
7 R/ s3 G) i, g2 e8 Zset trade-record-current, L( O; T; Z% F. b5 l2 U6 E8 x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: N& p" i4 I& v]
, n2 X; r6 j" C3 y9 K
! i g3 a) e6 p- D/ x; a
O6 K( b, }( m+ n# @3 w1 u4 g6 r2 Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 u9 K3 ]% A8 _4 `$ s$ b: }
, j0 ]6 x' x! qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 a9 j- L- u& F! n/ s) ~;;将此次交易的记录加入到customer的trade-record-all中
0 t+ u q# W- ]! ?" I, [end
$ W5 ^ W- `$ v1 B8 |- X# [( I: X. [% ?& k5 m8 s
to update-local-reputation
0 v3 F- o* O' r; ]$ r. w5 mset [trade-record-one-len] of myself length [trade-record-one] of myself" t& V5 l3 k* i6 ^, B3 ^
1 d9 w! { L2 b+ |' { x D' I H a; s( y) V& s% s
;;if [trade-record-one-len] of myself > 3 E" s2 x. S0 m
update-neighbor-total
?5 m3 n1 B. P, a" };;更新邻居节点的数目,在此进行& m7 j, ?5 p1 z3 O+ E2 z1 s
let i 3
6 J7 T3 g5 `/ _, |/ o& g7 r) glet sum-time 0
. c$ Q* s. o' i, m8 R( z `while[i < [trade-record-one-len] of myself]
* D/ C3 _. a' m) o" Y8 ?% b8 a[
4 K# t* \* ~* p" r, n9 Fset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ X e) E: `6 y% Gset i0 A: _' I7 ?, ]9 L% C; g
( i + 1)" c/ R0 W+ ?" @
]
% w+ k7 Z2 }1 }; X7 llet j 3
" V' U8 G5 ?: o, y$ w( j2 c) J5 ]2 \ ?let sum-money 0
) I1 g- E0 ]4 k1 @while[j < [trade-record-one-len] of myself]
+ g/ j' d" Q# v7 N6 e[3 [) S: X7 g2 Z; A
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)
$ A& m' U( b) E0 V: Mset j
: O8 a: i5 x& \- H: w( j + 1)+ H6 o. I5 H2 M" V5 i
]
) @. p- F. @8 I5 r9 l, q; l( Wlet k 3
D( V. Z$ c- g; S+ elet power 07 D1 A7 }) i" X0 L4 H; ^
let local 0
+ L% Z2 Z; Q- ~8 [0 L Q. M6 gwhile [k <[trade-record-one-len] of myself]
! r; L T8 z$ l, i: v" E1 {[
. s. ^/ K# e& ^( ^2 g# @- Y/ vset 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) 4 A5 [0 Z/ Q3 ?) Q5 u2 U$ ~
set k (k + 1)
+ a! k Q" |1 h- r% S( Y6 S] b2 c) V' ^5 V; K
set [local-reputation] of myself (local)
3 e2 d( o' ^! W j9 j8 i8 _end
% Y% @& Q7 g" w" ~. z( a& R5 P5 ^3 Z7 _" v9 x9 B
to update-neighbor-total
) P; |0 w. J0 J, `
# t8 V# z& @" a- Z5 M. p$ ?if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 G- j7 Z6 Y' l& n% t/ c1 J' b
6 |( I! W8 Z1 M: D3 w/ s0 x' a* b( ~+ N* y( o+ z- j- s
end
- C$ Z) o# ?* e3 P4 |' a# z& m3 J
! e: ^* H, \4 \4 t2 S. R" h. B& r8 Eto update-credibility-ijl
' w6 P( L# ]; k9 W$ F. B& o& T. r9 K2 Y3 `1 l( w
;;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。
( s0 B u" p- jlet l 0
( L, y' Z) j: a, hwhile[ l < people ]
- N+ P' R3 g9 S# A;;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% z. G7 \( h) L4 a[
- F. M0 C7 i5 u* s( plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ k/ }$ V3 j$ `% B
if (trade-record-one-j-l-len > 3)
! d( O3 q2 Z! r: o5 ]: 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
$ ~% A# C3 o- m/ s; P+ ylet i 3- \/ I; h7 J- b$ N% k* Y
let sum-time 0& M6 Y' l8 I2 }1 n
while[i < trade-record-one-len]
' ^/ s2 o- T1 H[
6 f; w* n8 d6 m6 }$ ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). ~' N9 E% X; n6 \0 J" x
set i
& j/ I+ {4 x# ~( i + 1)
3 O# @8 \9 P" T( G# B; S]
+ N. m+ |) |. y2 w9 _+ plet credibility-i-j-l 0
, n; j2 }, O9 }' F;;i评价(j对jl的评价)5 ^/ {5 k- \# ~; n) r) o' H' d
let j 3
; S3 o$ F8 I/ P& u$ `5 Slet k 4+ }% ~* V9 j( P! _) q
while[j < trade-record-one-len]. y; v) d$ p! C6 ?
[% A3 i. ^% R9 t2 A" l9 _: w, R" ?
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
' N4 }/ d% c4 ^9 V6 j" @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)& \! D2 u+ ~- r# [! P
set j
7 A, X7 z1 e% T* A! o F7 i( j + 1)8 r/ {5 N8 _ s% p3 R9 O; X
]: |' j( F& @8 @1 m+ |( ?
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 ))
7 k; @% q3 g9 N" M* C; {. g4 G$ p# s" a: r4 ?
- q/ O' k( M2 f$ m8 U: D1 f
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 s/ R2 z/ t) } K4 ]
;;及时更新i对l的评价质量的评价* {4 X4 W' W3 h5 Z" w, w
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 M$ [: _- a9 l' E6 Y
set l (l + 1)9 ?; o# ^- U+ S. }
]' Y# Q& Y2 _$ l! T0 _
end
3 z% F; v* k2 T7 t: v1 y) f5 f3 a* o, m3 e4 P* i
to update-credibility-list ]9 X0 o; {/ t9 [' J
let i 0
/ s/ A; S: }9 \, w1 C& f" |while[i < people], B/ r, u# j% i4 i$ E9 J- b
[* ~2 Y Y; c! m
let j 0! U2 k7 b% @' ~
let note 0
/ g$ u7 i2 J" Jlet k 0$ h) F: G; E8 U
;;计作出过评价的邻居节点的数目) `2 N+ f- a; t/ b$ }. Y
while[j < people]
8 v! l7 j% d9 `1 C- S, i[
8 _ ^: e$ ]! l( _! }/ k, W. [if (item j( [credibility] of turtle (i + 1)) != -1)0 p3 C! U4 \; ]9 r, ^2 @
;;判断是否给本turtle的评价质量做出过评价的节点! Y. z0 O1 K4 W2 R! d8 S
[set note (note + item j ([credibility]of turtle (i + 1))); {7 y2 j7 o1 u' U# U5 W
;;*(exp (-(people - 2)))/(people - 2))]: ~2 Z9 i9 A+ ]& F0 U2 h
set k (k + 1)( @' O0 u2 {9 k h# Y7 q
]
- L1 N' T% w6 x9 P$ w7 L2 |set j (j + 1)% J7 T- _, D8 j* P- {4 i
]
) |2 y4 C9 g& N8 z# xset note (note *(exp (- (1 / k)))/ k) c' ~2 n% k# K* _7 T4 P
set credibility-list (replace-item i credibility-list note)
3 X: T F o" a8 c2 }set i (i + 1)
; H4 o, r; l7 N2 d+ C# A( Z: k* z]
4 o: I. E) x' j% F0 Jend
1 c0 n5 w1 |; d+ K) b+ T- F' Q/ I! [8 _ D/ ~1 K
to update-global-reputation-list
{* Y' D% V" F7 ?3 y4 m0 t7 Olet j 0
+ u! d( [/ a4 ywhile[j < people]
. a$ `& t1 w! j- V$ H[: [( \5 C% G$ Z/ s7 f
let new 0. C- ?' d1 H* z5 T0 ]: h& G, m6 K
;;暂存新的一个全局声誉$ K# x- N, K$ r1 `
let i 0
$ ~" ^4 m0 G6 w/ `0 N- U7 I! [$ Y6 olet sum-money 0
- ]/ o6 n# a6 mlet credibility-money 0
q! x/ f+ O9 f% Z2 Y& Qwhile [i < people]
; J/ N4 v+ ?2 b( z' r, R6 {[ h4 i) a; }; D: r0 ?( m8 ~% O/ z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 m7 B! E- k1 E/ t: S# c" S. b& M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' }* y! O/ r3 V2 {4 [ q' Mset i (i + 1)
0 m: z. }0 x9 e( l0 B: w]/ Z- t/ O' x+ B4 f
let k 0
$ W, _! d# }3 h9 ~let new1 0
! l% ^: W% k8 dwhile [k < people]; `! F* j3 j: A' @7 Z
[
/ f- c1 r' _) Aset 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)
1 ^" t; K4 p' T8 b9 v+ _set k (k + 1)
p9 j% a$ v; @" M1 k7 d0 _: _]
% F- i0 D# \% |5 v$ B2 @. T( wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 e$ h9 k! p6 U" X
set global-reputation-list (replace-item j global-reputation-list new)# u8 k" Z- R1 j3 l" F4 Y5 C! L
set j (j + 1)3 p1 J# }/ b% c9 _# c
]
5 W. A) `1 @' V0 _: O% Eend+ {0 K$ H$ A6 D1 \7 d( v0 a8 O
8 p2 H6 g! o8 P' ^$ V+ s! W' R; {5 M# O1 ]2 U$ \# l! _/ k$ g
- q3 k+ ~. h+ A4 m3 C: L1 u2 kto get-color
E" X* |4 i. X& C, V# I+ J1 B3 r; ^5 v. f) h# x7 d: [
set color blue& j4 L' v T: A$ U5 j
end+ j) K+ e6 l3 A; M7 F9 u. P9 d
6 Q( {) b# t' F3 Eto poll-class! h* }/ H' O) [% t& G
end# ]5 M. n0 f) W- G; A
# Z* C+ s: \2 w6 L4 k
to setup-plot1
6 c3 X0 r" Z6 R% Z* B- U* E$ X F+ q/ k A) L( n- r
set-current-plot "Trends-of-Local-reputation"
3 b' m4 U1 f8 I( [" z$ [" o5 c9 x: D/ }/ G8 w% ^. E, D
set-plot-x-range 0 xmax
, ^6 o2 e' ~; X, W B9 Q+ T% v
# ^; O+ p; c: u T' d& t( c+ bset-plot-y-range 0.0 ymax9 y& C8 q, y# Y( g1 ]- l/ u2 N
end
% g. ]4 s3 h, M. @& \& V
. ^8 b1 v% g# [8 U& g" Q- uto setup-plot2
3 R$ Q, ^+ L. T" c5 D4 V% `, N) q# n+ u
set-current-plot "Trends-of-global-reputation"
3 T/ ]$ q4 c7 B. Q$ k+ Q* |9 |
+ g, D: w2 ?* t: e& H) ]6 pset-plot-x-range 0 xmax
1 T- m& ]3 G ~% j; A" M- S: e$ D8 ?% R( r
set-plot-y-range 0.0 ymax0 O+ C6 w0 V0 I6 P d
end% s0 k* o& {9 L& S7 c( B `: K
$ F. ~/ ^! m5 V3 N0 eto setup-plot3: {" q/ x+ y3 T' y5 n& ]) K; l& g& ?
0 p v5 @$ @9 y2 v/ D
set-current-plot "Trends-of-credibility"% }8 r3 _& G6 ]" S6 @( ^" w
7 [2 Y) L7 G, wset-plot-x-range 0 xmax
: h! Z' k/ O* X$ g% c8 S' p* m% A+ g' n8 |
set-plot-y-range 0.0 ymax
7 Q. G- E7 b% N6 ~end
7 U6 k9 G( H I) d7 g+ D. h1 R9 U6 |0 K
1 G& v5 e. I! L5 E3 ato do-plots- G4 ?, o2 y( |, s# a1 L& T# V
set-current-plot "Trends-of-Local-reputation"
1 F/ Y7 @, B" I) P# J4 ^set-current-plot-pen "Honest service"3 L2 I% ?0 Y1 O, k: e) U) @( g
end
, \* ?, q2 S$ T' k
A: n( P2 e6 _7 A[ 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
|