|
|

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) S( F9 y; G! {, `* I1 D% i
globals[
/ D& z4 M0 P8 H# J1 z+ Q" _xmax( L% W' m3 t; t3 y1 M% t% Y0 E
ymax; n( r/ h; Y. z8 B
global-reputation-list
( Y% X8 A( T' \7 p% W3 g+ Q
+ a7 F! `6 E9 G& w3 ^: A1 ~;;每一个turtle的全局声誉都存在此LIST中; Y6 f6 y/ e3 _% }
credibility-list
5 u: r7 L& E% _- R T2 i;;每一个turtle的评价可信度
& B# |8 ~$ |* W) S# E; {honest-service
, l7 x3 ?0 V5 ?% _- U# \. ~+ {unhonest-service
9 `/ M$ c. _0 ~) ]) |* w3 Ooscillation
( S. w4 X- S7 v) ]* [rand-dynamic
) q' |2 z" [3 d3 C]
0 S1 h- Z5 [% u- k" {6 Q
5 P" e( c5 s1 ~; J1 Y/ Pturtles-own[- n0 K# X: T. B' t
trade-record-all
7 Q2 Y3 S! x; X* \9 C;;a list of lists,由trade-record-one组成
! B- D9 N1 z1 [. R5 V d7 ?. ktrade-record-one
' `& D6 Y: p; T$ q;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) F; g) i6 m W1 ?
' I( D0 F! _: m) y" [- O9 M( g2 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]], k9 K1 q9 D* s8 D/ q" I
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]+ h- n9 A' E, H7 h+ M
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
3 K2 x1 z0 T, h" e% Kneighbor-total- V Z; [- s& x' G+ m, D% v
;;记录该turtle的邻居节点的数目+ m* ?4 F" I7 H& l, |. e1 T6 F
trade-time
3 y+ ?( b& E+ I;;当前发生交易的turtle的交易时间7 l" E: O f3 D' K; n
appraise-give3 w; a% a+ U5 m2 x* E) v# I4 q# M
;;当前发生交易时给出的评价: @8 L. B( _% L; k
appraise-receive! a1 S1 `$ W0 S- `9 K* g2 ]/ n A
;;当前发生交易时收到的评价( G! K9 H9 i4 `2 L2 P& \1 ^- l9 l
appraise-time* b, ^* Z }8 F/ H& Z; u
;;当前发生交易时的评价时间8 O+ a. ]9 ^. v. P- v
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 C* T% u" c, ktrade-times-total: `7 d3 `8 Z& k: m* V0 _
;;与当前turtle的交易总次数
0 m; u; j/ j% V* k; [- Y2 H, r$ X$ |trade-money-total
( @8 y9 I7 m* T;;与当前turtle的交易总金额- h- E2 z* i! w; @+ t8 ]
local-reputation0 |; }0 i1 w/ l8 |% o
global-reputation
8 z! a' s) b$ T5 kcredibility
7 k4 Q1 j% S$ b) n;;评价可信度,每次交易后都需要更新
* z1 E. O J8 R* {5 Xcredibility-all
; z8 s" N% o1 T8 i, C;;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$ T: \" p+ Y* L- F: ]% ^$ b1 B$ @* v: s5 P9 @0 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
* I% u. F6 a1 o; X m; O4 w7 O1 Pcredibility-one" m& I7 x b# y1 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
M: m' l: p9 M$ sglobal-proportion
& d1 a* Q1 \5 H ccustomer
. o- ^ @, }# y/ t7 ocustomer-no
5 e8 M; q! Q- Y, n+ Qtrust-ok
1 r% m8 v# n2 d9 _2 x( m; ntrade-record-one-len;;trade-record-one的长度
" j* k8 Q3 C% k]; n5 t+ ?) N( h% w8 u# ]" d
0 J0 a0 y. I# `+ h' W- P& H, _- s% C
;;setup procedure; ]' d3 L& l+ J- ~
; R/ N2 f6 u. G, u$ Y
to setup; D4 `6 B4 I4 `$ W2 E
; _0 y) J/ j" `4 o* ^+ e1 u8 r; [# m
ca
( I5 \) h0 e o: G+ m- _) l: w) M" X1 a3 E% ^: t$ X% o4 K! u
initialize-settings
- j) c- `% q0 D! _( k0 h& _4 @5 [' m9 ]
crt people [setup-turtles]: d( d1 ~/ C3 B2 H% {0 R
5 F' l& {% N& ]# ]
reset-timer
. c2 |' Z. \) [! R
* q* d. @' g- B2 s+ Z/ `poll-class
& f) `$ m+ i) A7 h1 \$ R9 I; e
) e0 L. Z' O4 l* W) Isetup-plots
9 Y1 E0 j' y% S
5 e5 B3 _( W v% A& H$ mdo-plots* y/ B; P2 ^' H# C( }2 ]
end5 Z" K8 q/ O3 u: v/ k% U
5 {" C1 _( m5 y1 g- S4 f
to initialize-settings
) T( V: i& E: A) W
; n. z: ^" I2 H) Xset global-reputation-list []9 C) z% P- }- F% B! m9 J/ {
2 Q9 b' d+ R1 D( I; M
set credibility-list n-values people [0.5]. a: W# T4 k# k9 f, R o8 i7 R
' e1 v8 |9 t5 m, O+ `$ c9 t+ u" p6 t
set honest-service 03 `: a. M: R% z' ^; b
n/ u( [2 T2 {5 I
set unhonest-service 0/ e; U( ?, B! m1 a) a! v
- O* A( H6 V, Hset oscillation 01 ]6 a% g# S8 z" E7 M
8 z' V- y9 _8 |( o; X4 t8 d0 }
set rand-dynamic 0
4 M& L+ w$ [* Q/ o1 R% _end- m4 ^' T( C) A' x8 B! l
( ~9 e9 U! o& D, Z/ Ito setup-turtles
! d% v9 ^4 U4 p+ _$ i' Vset shape "person"
5 ?' }: ]1 Z& f5 ksetxy random-xcor random-ycor. {5 o& W( m0 ^' c
set trade-record-one []$ E" w: W: e+ b0 a
/ p: s0 r2 w9 m( l9 u! ~set trade-record-all n-values people [(list (? + 1) 0 0)]
$ q% ?$ i" Q1 F E" B( F3 x0 K8 s0 x% b, F! I6 _
set trade-record-current []
& u8 M7 B$ `9 vset credibility-receive []
0 @. S) a$ X" \3 k6 Q6 p8 U" Zset local-reputation 0.5
+ p4 y1 Y/ [7 B# v/ h( F: K; kset neighbor-total 0/ d k6 V+ O$ O) a5 C4 g! j1 ]; C
set trade-times-total 0) K+ F, `+ F8 U
set trade-money-total 0
6 g; z6 o5 s9 U" mset customer nobody
+ o, {. _" f7 E7 t/ w4 {1 Z Qset credibility-all n-values people [creat-credibility]+ O$ }) ]2 [7 ^& v) ^ I0 _
set credibility n-values people [-1]
$ v4 K' N& Y& {+ M2 c3 ]get-color2 m& p. V3 F3 \; h0 t) b' i7 O
) ?0 E% R# u& G dend2 P" m% E9 C6 W& q. m
! D0 d+ c. p" h2 N/ }; y6 T3 lto-report creat-credibility
( g+ Z: O0 ^4 {5 q2 L+ s# w# Ireport n-values people [0.5]3 ~" s8 f. x: g$ ~% x8 C
end
# ]5 ~7 o, o. y
+ J+ \: F k' {# d4 ito setup-plots; d v& ~( z9 `0 q, P
& N# y- D, N, I, V1 D5 ~set xmax 30
+ \1 X, i* m" F" _$ e7 u" I
6 j2 U5 i0 _# U; G4 E1 `set ymax 1.0
! Z( V0 _ O# \( q8 |! l% ]+ o/ K( A: ^" |. Q( ?: k$ H( H7 K
clear-all-plots7 Y( H+ \6 J7 A- @
! e; p0 R8 h4 L
setup-plot1
. m. P/ a9 ^+ Z8 R7 r& t- J0 t5 `. {2 D9 o
setup-plot2% Z8 Q' x. j" r
5 V) W# U, \% n2 d- W( I4 H
setup-plot3# }* m1 k# q0 Q+ G& p% `! Q0 p( {6 u
end: [9 O1 c% `4 C7 D) D6 h
& {0 ~3 m. e( Q7 }4 ]% [& g
;;run time procedures
) M- g* G7 v- e Y' e' h7 R- I( Q9 p1 F* P: D9 q N3 a
to go
2 k1 Z$ ^& D. |+ V( w& V( p* F( `% o4 p# |! o5 N C/ ]1 x5 o
ask turtles [do-business] j9 ~+ s9 J( i+ c
end
\5 l2 M! ]: B: e) v; Q. y
, u4 s2 s1 `$ D7 S: f9 Z$ r; Uto do-business * H# b1 O3 g& t1 N( U
( k( s# a1 E0 x4 }. J
: A5 v# |% X) O. t5 `9 N( Mrt random 360( v% Y$ h) A& A* ?2 H% K( v! k/ }0 {/ B
. l1 h5 u2 L/ K6 Kfd 11 ^0 l k+ [* ^, }
- X: h2 s% k) S9 L
ifelse(other turtles-here != nobody)[
2 h& l( {; G* l& h) Z; s
1 q/ K% K$ n! B3 h$ A& _( _set customer one-of other turtles-here
I3 O% [5 n1 V1 y1 c4 D/ W; X$ k/ ^/ \3 P0 u. t. q: w
;; set [customer] of customer myself
4 X1 Y5 O& s3 m" s# _/ o3 L& J/ v7 M2 [& B0 E
set [trade-record-one] of self item (([who] of customer) - 1)1 |2 _, k) A0 {0 F* ?4 D
[trade-record-all]of self; g! L" @& m5 e* r M
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' B# f* { j" y4 I4 L& [
* Z; q8 T+ L- J+ F5 _6 Jset [trade-record-one] of customer item (([who] of self) - 1)6 f, M* Z+ I4 G
[trade-record-all]of customer' S4 `/ w& e! ?/ {4 o8 V& Q
6 o/ R+ ]6 y: n+ h: Wset [trade-record-one-len] of self length [trade-record-one] of self# F% P1 j0 e. J8 S
* [5 u. d8 R* p5 `2 @* Uset trade-record-current( list (timer) (random money-upper-limit))
: G2 a6 i1 c$ B- \5 V# m' p/ z6 V
" R4 z% o& j4 L! H0 l) Eask self [do-trust]
P6 Q: s0 K' U c4 C;;先求i对j的信任度
- U! {$ f. J! j/ T* d: [4 | ~! ^; w* _
if ([trust-ok] of self)1 E* q& d) G6 [& M1 j, Y( I" i% S. h
;;根据i对j的信任度来决定是否与j进行交易[
( F: U% A/ u) B+ F5 Kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. N/ ]& E6 R9 y2 K
. C! e5 q$ h: A4 u0 U/ ?[0 f5 y, |6 u! w4 }
3 m+ H1 Q2 J4 ]. K8 ^4 t0 X+ }% k
do-trade
( d# \- Z' K8 f$ N. ~: ~% \+ a
+ a9 U5 ]( a1 ]$ e5 l ?+ lupdate-credibility-ijl9 _& ?0 b' S w& D" Y# m
- O% C8 \7 @# }' |
update-credibility-list$ I) l* X3 M. c$ V% L
- _% c x! _) @5 r# S/ x, S6 n
2 h- ]: O: j" M9 [' z5 D
update-global-reputation-list9 _2 d m4 i( D u
0 [; A) X2 r3 M( @7 G& C
poll-class! p/ F' e) M1 r. _- }, `5 R
( ~8 P0 m0 E4 i/ r( \
get-color
0 N2 }! C; t8 M4 t% ] R. ?$ _) ]+ I1 D
]]
V2 Q3 t. a. T& O: h
% s- E! W6 L$ F# v6 u;;如果所得的信任度满足条件,则进行交易% i, Y: P& y5 K5 j' s/ e: D8 o
o7 R8 M+ P( q1 [) Y[
) l# |# i# W5 C8 j, p" k; z, Z
rt random 360! i9 a9 y: j+ @! X8 W9 X
5 i9 j& M* R9 c" v
fd 1
2 P5 w# b$ Z( j! A' b- ^ j; _1 e, _! m' w& [- T ?1 t
]
0 N6 b5 m0 ?: O0 ?, N! Y% Y, S4 P
+ B9 D: Z, H# Rend6 D$ y4 Z( Q! \) Z5 [
! R: ^( {% ?, F9 a2 V1 \
to do-trust
3 _+ A/ `& S" o# Z7 P9 f3 v. T: w* rset trust-ok False' c' W* ^% l. q
* r, ?3 t! R2 R4 z5 ~) d
+ I2 t- h5 |$ u, X: u9 K
let max-trade-times 0
1 d/ D8 H$ F, D5 Q) s6 Tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 P* s) k6 y R' t9 w* plet max-trade-money 0
+ J9 y) V1 ] F+ B+ cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' w1 ?8 m8 u' p e1 U% Y' qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 S/ ~6 s8 L4 O; f; m& _/ \
r: R* o; E7 n% K4 o) d
' L& X6 ]: w4 ]+ |0 Lget-global-proportion
$ |( c) B i6 X) Q1 Klet trust-value
' a" U' s s# k8 o4 nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
$ {. I5 ^8 O. u$ d2 V, Q6 D5 Uif(trust-value > trade-trust-value)
( J* F9 [" j$ ?* d! U0 {8 p[set trust-ok true]
2 @* r! w( K) \, zend. {$ P9 ?( S' |6 Z0 I/ `, ~8 a' E: O
) ^" h. Z; y5 x, I: ]" C
to get-global-proportion9 |2 x7 B5 P: Z9 N3 E2 A0 a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): a1 ]' o6 i3 Q2 q. c! E
[set global-proportion 0]/ v2 b" V: f7 W+ Z4 ^* X( @
[let i 01 m4 r1 M1 v4 Z5 e, u
let sum-money 02 p; t% O. ^' G, @, {( Z
while[ i < people]7 F/ d$ n) |7 f/ d( x
[
, O0 N: M% r+ i% lif( length (item i
5 u) v; j7 z. S( l E' e[trade-record-all] of customer) > 3 )
/ F8 b- ?- A* K0 }: H/ ?3 P5 |[
( t: f) w1 y4 e* p) B5 z* Q7 wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' w3 s9 U9 H5 \ ?# M
] l& ?3 h2 ~/ ]( s- t
]( O( K: s7 c- B7 ?
let j 0
% S; i9 [, @' W3 blet note 0
3 _% a# K. n0 O, F6 Owhile[ j < people]4 A6 d' K8 ]- x
[
|2 Z, s" Y* X! I; A: pif( length (item i
( o; |! M& Y8 o3 w5 S8 V5 L[trade-record-all] of customer) > 3 )
4 L1 X) l3 Z0 l4 j" [2 y[0 ^, R) B$ Z/ p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! \) u6 U" v2 v# I B7 x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 P$ m/ H3 g6 }9 f% n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 r9 T4 I0 _* _ Z! D5 D% Z]
5 a( m! r8 F# f; L: E' V" b]9 ?0 L8 K- b# a' |1 `. l
set global-proportion note. z. r* k& c% M5 a- L
]
4 g j6 H* e1 T* c0 e9 k4 tend5 Y) O+ _* K8 K. `6 m& u) ]
$ a% M" V9 U: f& c) A
to do-trade( ~4 Z' C8 [/ Y; O3 d
;;这个过程实际上是给双方作出评价的过程
4 P+ \, r# N5 `; a3 Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! j7 B- G; `; b9 c4 y8 c
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 d- k) g% A) p0 yset trade-record-current lput(timer) trade-record-current8 w! J: K8 O( y" V
;;评价时间' N7 y ^4 {2 Y3 t" W0 i$ C h4 V
ask myself [
: y' A4 l' I, A/ D5 x! Aupdate-local-reputation
$ y4 h) Q2 ?3 p7 `- [1 r3 M" ?set trade-record-current lput([local-reputation] of myself) trade-record-current/ C& }# k' w# A
]' I! L5 x5 `+ q! E- c+ `4 v! z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. l7 z1 ^5 w0 e6 o0 h e
;;将此次交易的记录加入到trade-record-one中
4 x4 J$ i+ \# ]. N7 ]' `4 b# Q& l% qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% L3 v, |1 n& i
let note (item 2 trade-record-current )6 z5 m1 L- J' j- f p
set trade-record-current
& F2 V5 x. O- L(replace-item 2 trade-record-current (item 3 trade-record-current))
9 }" w5 R9 q) C0 tset trade-record-current
$ g, X/ m( T7 c(replace-item 3 trade-record-current note)* Y. ~, c# y5 C& c' T, T
! v2 R _+ @. L$ z" S) O& F5 B. y
+ E; T `' f8 Y6 ?; u0 `1 E2 Eask customer [
* t0 o, b, c/ A: J0 {% G1 V# e3 Tupdate-local-reputation
7 {6 m# d+ N' n4 x. E. D9 iset trade-record-current- J7 x$ X9 q1 c3 ^4 u9 Z# X
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 w4 z' j1 a! `8 h% T$ N+ n6 g
]$ w( {8 J0 l) ?- @' h
- a Y+ Q8 n- i3 v
0 k2 ? G3 c! J5 k# Qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. i X0 t+ b0 ^. D/ [1 q9 }- G6 p3 L4 w: h$ h) b# _
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' e; e+ s7 @0 g: `0 y1 J5 i
;;将此次交易的记录加入到customer的trade-record-all中; v( W2 _9 p2 y
end
0 \/ ?1 b: c/ y9 m G" X+ z( w; x% `( O+ ]( U1 Z
to update-local-reputation
' Y" Q. u7 P; L" u+ C' oset [trade-record-one-len] of myself length [trade-record-one] of myself
* j( s' j" v+ e) S) x" L O+ `
7 s# c( I; i$ m5 X9 i
: ^/ v7 x# ]: u7 w: a- j;;if [trade-record-one-len] of myself > 3 7 v3 ^# s C& w+ m7 x
update-neighbor-total* a. F8 @' u' G! J
;;更新邻居节点的数目,在此进行
1 p+ f& F4 q2 g9 f x0 X/ vlet i 3
- L! d7 Q7 a; ^0 D' f9 Z8 rlet sum-time 0
4 b3 c& \, ~& s9 I% ^. Xwhile[i < [trade-record-one-len] of myself]$ U3 {. C% j W: J6 u5 F
[; g) r2 b& i% ` r/ p
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* z( }1 w* [8 K U' e" b* Qset i- p# N9 M( s/ E- |! g: x
( i + 1)) q7 ~+ O: m3 T& M& O Y
]. l9 r$ S# X$ A
let j 33 F1 f; T. g, `' _9 n
let sum-money 07 {4 Y/ v* w' U O
while[j < [trade-record-one-len] of myself]! J V/ x- ~0 A. ?0 _$ d3 ~9 T7 q
[
" }9 v! c& ?9 s/ }9 L" ?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)
# R8 c+ Z/ X' w5 [, Gset j
/ h# ?' x9 x; Z! `' ?: {( j + 1), k" q( a- R9 w3 A
], I) K) p# H! T' [( s
let k 3- A" K( X- x! _$ M0 X
let power 0
+ F4 M) ~# M Y2 B' V" t0 @8 dlet local 0
4 S* C. X6 H7 e. M2 t @while [k <[trade-record-one-len] of myself]
- H Z9 e$ g/ U& s1 V- V' O) N' e[
$ K8 o9 A0 z/ T! I+ gset 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) 6 J g/ \2 Y- I' P0 A' H
set k (k + 1)1 p7 G) x, `5 s1 b$ J
]% v; K* V n; A- i
set [local-reputation] of myself (local)
% a- r: E* U4 send" t* x4 d) f$ s" O% v( H
# X4 }% I6 p4 \; I& v! f" ato update-neighbor-total5 ~- D5 V+ n7 f- q: h. Z
; b( F" \' V$ zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 w1 l r4 K% p* y
! w# Z% z( L+ r s
/ `! U6 |- ~$ [+ l, Gend9 w) i( t1 z {. E6 K: |
, g2 |' r- \7 v, X, d
to update-credibility-ijl
# h$ I( {7 i; l& ` d- o; |' k4 N( a3 X4 ~0 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 P4 Z' z0 r3 s9 q# C2 C+ a+ v
let l 0
+ F3 M$ D9 X! h: m3 v. B _ hwhile[ l < people ]
. C$ e. B" n. w; {) u;;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
, d O# n- D2 H6 M0 d5 p% Z. J0 {[
2 D$ n: a) K" {* Q( q% slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 i1 j( D( q0 ^/ s+ ~if (trade-record-one-j-l-len > 3)
8 ?# F! e- ~, m* W5 I[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 B4 `# \. z# y/ Y
let i 3" B O9 \6 @1 z. D
let sum-time 0! \% ^6 h9 ]1 S$ E
while[i < trade-record-one-len]( h4 p! E1 ?* H
[: l) S. ^% |9 _& g1 I' A' X8 e+ ?3 H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ F3 m. }% R/ I# G9 ?8 U- Z6 fset i! i3 C& A1 ]! M, N
( i + 1)5 F! F; r7 A+ P
], ~$ Y3 a$ k C8 g8 d9 c" O: D; ^
let credibility-i-j-l 0
7 z# n# V u, v' s9 J;;i评价(j对jl的评价)
8 c5 r$ c6 I$ ylet j 3
5 O. a F" |# I% w$ Z( O3 B" alet k 4% T- H$ k& Y9 A% I2 u
while[j < trade-record-one-len]
" n k' r# }0 a. ^5 | d j[1 k( ^! ^ X Y, D
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
+ ^1 o. E( Q _* p; c H3 jset 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)
4 J. c; H1 {4 r1 `, _set j
9 t1 P: O; J& A6 b( N( j + 1)
" _# g' T* _8 r]
" s% E4 T1 `0 |# V fset [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 ))
/ Y5 a8 C G1 b' G) k
6 y6 j( }$ W) x8 Y. _" f
$ U' E$ v; U& X1 V3 _2 Ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 O; P" ^8 T* F! q8 y9 z;;及时更新i对l的评价质量的评价
6 T. h! l' S% W; c3 @set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: z6 U6 [- ^& E! d- W
set l (l + 1)% U, {3 u }' Z# p" C4 M
]
8 H- e" r0 D: i$ E. v7 W' \# gend0 e/ f4 ]" E, s) X: a- A( f9 Y
' I# _( _% C! H9 `+ @to update-credibility-list
( d- v, S+ P6 G8 z# L5 ?let i 0; b E% V6 I# n+ h9 h. w+ _
while[i < people]
7 n S4 [; c0 c! V1 ?6 ?0 _# |( i5 K[
% Q2 c5 @7 h5 a# L b2 slet j 0
$ I. [: R, l6 Tlet note 0. R5 f9 [' t w* m' x2 n
let k 0/ ?( Q0 f- l5 t; ^
;;计作出过评价的邻居节点的数目
8 n" P+ j) S% X7 U2 }, Q9 p! gwhile[j < people]7 u) l3 T4 ~0 d
[
$ S1 }: z0 O; B0 V, D+ oif (item j( [credibility] of turtle (i + 1)) != -1)
9 P- T2 O/ I- V8 y% d- R;;判断是否给本turtle的评价质量做出过评价的节点# h" Z, }. T# v: J3 ?6 ~
[set note (note + item j ([credibility]of turtle (i + 1)))
2 |$ Y/ B9 e7 a# C;;*(exp (-(people - 2)))/(people - 2))]
& K" h% y8 W+ T7 Y' R, wset k (k + 1)( U9 n% [+ F! m) R! [
]
8 O! z, E% x7 K2 xset j (j + 1)9 A" M6 ?5 T. u, _3 N+ `
]7 o4 l1 Q" N6 T- s0 S
set note (note *(exp (- (1 / k)))/ k)
w3 u6 p: u; C) K' X- Vset credibility-list (replace-item i credibility-list note)
! O) P5 i. G1 m D' E7 u9 R% \set i (i + 1)
1 v% p4 l" L3 V' B" r8 [6 X. f]
) {" F+ P$ [; s# _+ k5 G) d* b9 Rend
' m1 q; B( Q3 n+ N$ D5 }4 D' f" K2 {: c. g3 M
to update-global-reputation-list$ b" j+ y9 u9 u9 g: p7 T
let j 0
" V2 E; A1 r. K: j6 e& g4 kwhile[j < people]% i' Q$ v( u0 ]3 t6 d+ w' ]
[% `% P$ j2 S) F d) ?/ P
let new 0
1 g8 T+ g) y' W' f; K" v! V;;暂存新的一个全局声誉( m# c( f5 r$ r+ p
let i 0' m1 P/ `" \( z8 o( t% r
let sum-money 0
: c5 W/ @- b% t/ ]6 ~9 D. r# `let credibility-money 0% I+ N( w9 ]- I" P$ @, W( K
while [i < people]; H/ b# ?9 m% d* H* P
[
( L" Y) E' Q& A% D! b0 Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* r* U8 G/ E6 }" [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* d* [7 e+ ~! k/ D7 h+ {$ Fset i (i + 1)
, B X3 A r, K+ N ?7 o5 G]
2 O; N9 R% { e* w. o% V, Y9 Slet k 0
1 w8 R. S- f! j0 e" Blet new1 0
# w$ X5 O; h; F7 j: Rwhile [k < people]
' O, z( z. E4 V% f$ u[
) K. C: C. N7 p: m1 K9 Hset 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)
% x* v( |* |. M' Nset k (k + 1)
4 t+ y) C; _% y& O5 m]
& Y A P6 D% |# N% E% C# ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 V: L _6 j3 p5 G2 m N
set global-reputation-list (replace-item j global-reputation-list new)
7 {- ]2 n0 k) C. {set j (j + 1)
/ v) i% K! a8 J]
6 C! {8 o5 |. G6 D7 |$ y8 Gend5 P( p9 J/ L$ R- M' {2 n
- j5 T9 g( p6 f. x
1 h4 @. }( n0 ]* }+ w
( {, _. Z5 y( T; M% [+ M0 Wto get-color+ t* W7 m2 J2 |& k8 v: Z
: \; _5 j% ]8 h7 Q! p8 k$ zset color blue3 `% R+ q* q4 B" ?! d
end
' c2 J- d4 L, ?2 `5 d4 F* [
6 n0 o+ d* X9 d3 {! u. G( Ato poll-class. S# ^! V9 I8 F8 W q
end
& J% A! O7 q8 B3 O5 j9 L' b; k3 h# W$ ~3 G' A! l' X
to setup-plot1, g" a8 U: e6 {, S1 y
5 ^ d, ]$ k$ l5 u) d
set-current-plot "Trends-of-Local-reputation"
b$ b6 L2 I0 u' D3 i$ |$ q+ ^7 q8 z/ `7 t
set-plot-x-range 0 xmax
! m# X; P9 ?0 R. j" K
/ s _8 l, Y$ _* w/ ~9 nset-plot-y-range 0.0 ymax
* \! D8 M! m! i: p# bend
: |7 L: I N# r& _, H6 _8 h# X+ n3 N4 M
to setup-plot27 ^7 v" ^) P" w8 N, j6 H
) r5 Y; p2 F2 ]- i" f/ [0 @set-current-plot "Trends-of-global-reputation" G+ f' A f. u7 a! j2 f
- V/ `) h! R* p5 P& ?set-plot-x-range 0 xmax
# P9 [1 U* ]( I% x# H$ w
" \- z1 M& L/ t( p! _' S% A* {( f8 @! ?set-plot-y-range 0.0 ymax
- l5 E* W, j2 Hend- A: \: |. X* P! G- s
+ L J* P% `1 N3 p/ n2 w7 }9 j& P
to setup-plot3& M& V ~: h& g) K; n% ]8 @1 r/ s1 y
0 a* y; @: c/ V8 z7 f" W1 N) v/ h
set-current-plot "Trends-of-credibility"6 L \7 t2 n5 @( \! z9 N) J
0 h6 p0 [$ d q: H; x1 Qset-plot-x-range 0 xmax
4 ]8 f4 _" h v( [9 J/ t7 C
. f- _5 [+ v. ^! K; Q2 Jset-plot-y-range 0.0 ymax
' @5 {! ?6 U* Y9 M! R: Kend1 P+ ]$ E1 {" |+ G, ?/ L& n( h% H5 p1 d7 D
6 {& j' I) g# T9 d% n
to do-plots6 L+ Z. _6 J4 S
set-current-plot "Trends-of-Local-reputation"/ e, E7 P; Z3 s6 [0 z
set-current-plot-pen "Honest service"
- I* J+ T& [, T: k6 jend
$ q$ a0 m R* w0 h4 t! m2 b# y6 ]& K, y
[ 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
|