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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, o( z! u3 O7 e( Q$ ]/ v3 O
globals[# D5 ]$ q% P5 T+ r! N
xmax; ]* X1 k8 g5 }; Y* R
ymax% V7 z' d% P6 ~
global-reputation-list6 C2 \3 i$ p7 E8 k7 s
, _7 Z+ H4 y) U
;;每一个turtle的全局声誉都存在此LIST中0 b. g' `7 c1 A. |
credibility-list I; R( Z2 r J' Q$ p2 I
;;每一个turtle的评价可信度
% u; s. G: E: z! vhonest-service* f% @# L/ |+ ~: k
unhonest-service
$ \8 A( p8 B& E1 G1 R5 }0 W) A6 xoscillation
4 f) I/ Y1 r: Urand-dynamic9 e( i" x D" u
]
+ `1 L6 w g& K! J4 z1 d! x' \- ?3 m$ K: K V/ {
turtles-own[0 S, C; Y1 Z2 z, N) x, Z) ^
trade-record-all
J9 k- O" q$ [! };;a list of lists,由trade-record-one组成2 h* B* x9 F! }7 u1 s
trade-record-one6 l6 u7 F$ k' M) 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( H) Q0 c# P0 F: _' x7 G
; w6 ?/ }" |7 ?# l4 M% B& W2 t;;[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]]& P: C0 u+ z5 r$ h* a
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]
& Y$ Y0 H9 X8 X) Vcredibility-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
$ l+ ~ x8 a# ~: Lneighbor-total5 T' Q7 I+ `6 E4 X7 @0 C5 N- g* k
;;记录该turtle的邻居节点的数目
( L' G" @/ t: ?- E4 B( K2 W' gtrade-time' D g: T2 f f
;;当前发生交易的turtle的交易时间
% D+ `# m$ d# t6 r/ v, z% ?* x# g& Uappraise-give$ N r) X' N, M3 {* T3 B, ?
;;当前发生交易时给出的评价
6 Z: X2 `7 ]- \& P( G( pappraise-receive$ ^% Q6 |" W2 [8 l
;;当前发生交易时收到的评价
+ k- w8 w/ } k) n( sappraise-time/ Q4 `- @/ y7 u
;;当前发生交易时的评价时间
6 A% V. {: x) C4 e9 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ d1 ] [5 s/ Q# a/ |3 Dtrade-times-total* C1 f9 ]$ j9 M" B! k3 o$ Y7 `$ u
;;与当前turtle的交易总次数
+ V2 c( J3 L: Strade-money-total
: a7 z4 i' V, j9 M4 x;;与当前turtle的交易总金额
7 ^/ c ?2 x, r% Jlocal-reputation
( P0 m1 {) e+ P1 eglobal-reputation
}! ?8 C) D0 d- F/ |0 t1 fcredibility) Q$ c' h, ~+ H7 d) y! [1 Y
;;评价可信度,每次交易后都需要更新
; G/ f1 G% p8 J2 u7 g( b3 _& vcredibility-all6 n+ v& z* ?. r" F
;;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 B6 r* C# R1 U1 g ]+ W( k6 P
9 k, P* b+ f+ ]6 _1 F8 E5 o. t- Z;;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
5 e- G& F$ V% U' O5 X; Ecredibility-one
0 N6 C* }( w+ ];;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
9 Y z. E8 O; A7 mglobal-proportion
8 @% m* h6 g; x- S: m; l! ~3 D1 @customer. @* ~9 E% b9 O0 q$ |
customer-no
: j: n9 y- v3 r0 W, ftrust-ok
+ j" f3 V/ l1 k$ w$ ttrade-record-one-len;;trade-record-one的长度
! p, b4 |$ j7 m; i]
2 G( B* ]9 E0 }* q x% _
! X$ f7 d: M- ?;;setup procedure
0 L6 M+ I$ d$ X; _$ f' E& w
; c) y7 ^0 F: s& Y1 \2 Bto setup5 D+ ]5 c5 Q! K1 U
5 z0 K0 \' V6 y/ k) y, h$ oca j: |! n5 _6 N% n+ M5 b
6 I7 \; @9 _+ {* @
initialize-settings: J# U3 n5 L9 _7 z5 V! a
, X7 s. d; b {+ T. a
crt people [setup-turtles]' Z8 d& ]2 T. g/ q" }+ y8 e, v
& V4 C8 d) j4 @0 j) kreset-timer/ W; e( V2 v5 R* k
: K7 U9 Y2 r" L6 i3 A
poll-class4 `9 S- J$ z4 p4 ~$ w8 m
+ c4 I: B. _+ R9 }
setup-plots
4 I9 H9 p& d0 O3 O
0 J; V# L8 y: ?! P1 t9 R$ Tdo-plots. e( A0 Y' y% Q
end
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$ Y7 n' w! ~( M) d8 v! _to initialize-settings8 C7 u$ `1 R* N& x7 M' [* Q, o4 p2 w
" M3 \9 W: G. h3 K2 Aset global-reputation-list []
' \% q A/ c: {3 s! j
! U' w+ N" a& M3 n- R) N2 J$ \/ zset credibility-list n-values people [0.5]
9 R# Z' ]3 U! _5 [2 P( \* ?3 t; P, Z R9 l
set honest-service 0
& ^" a4 m1 H+ E5 j+ x) d. U/ L T& P
& j3 x; K" `; F1 P2 `% r- cset unhonest-service 0
$ r. s" q5 Z( H" h: ?7 K6 \$ `. V7 t3 J( \
set oscillation 0/ X F% F- k+ f
/ W; H2 l( v+ ^3 B3 S" N( Cset rand-dynamic 0! t* F4 w' V/ o2 b6 d) o- T- ]) x4 [* X
end# f2 l- k0 I' _2 \
/ }5 M: @5 e8 ~5 l7 j+ U
to setup-turtles " n$ z& ?+ _4 t
set shape "person"
+ Y" f' v+ \2 t# Hsetxy random-xcor random-ycor
7 N* ], K" ~$ q0 Fset trade-record-one []
, E0 l8 i2 o6 D- \3 D% ?- p. y
/ a2 p9 F. U& v1 W$ @( `set trade-record-all n-values people [(list (? + 1) 0 0)] $ o7 A Q8 S$ `" g( D
8 I% R% R# |( Z* ~) B8 u3 vset trade-record-current []
) f# @5 V; O: f( z$ M! yset credibility-receive []
7 k" h3 f0 D" a0 o$ w9 ~set local-reputation 0.52 h& A% V9 D! |' d7 y! j
set neighbor-total 0) H+ T( G7 d1 k- v" ?% [0 n
set trade-times-total 04 N; v; n- E: f' Z" y* a4 a+ h
set trade-money-total 0
2 C c$ q0 [. \8 u2 gset customer nobody& l9 v$ L$ l. X* S3 x& e6 |
set credibility-all n-values people [creat-credibility]
% ?9 Q- c. L+ R& z# Yset credibility n-values people [-1]
" S9 a7 w- M; m3 J2 Tget-color6 l7 S0 t4 ?) z9 t
7 S0 v1 z. o, a" P+ G+ B3 Oend
, d I( @+ i& `8 g, }. i H% K5 f
; Q d6 C7 V$ H4 _. l6 f8 Lto-report creat-credibility
# Z* y" J( F) k6 J8 n+ kreport n-values people [0.5]2 ~& b' b$ d# x0 O3 {3 @9 C4 O2 C
end
" D; F a( o& p- _8 u+ Z
; \! Z g& M, \6 j$ Gto setup-plots. ~# Y. G& r) g! b5 N9 h( [ W8 ^ @
1 F5 n4 S7 F1 tset xmax 30
* K) Q' d. h0 t y3 U. k* U
2 B1 i4 H8 `! T9 b S3 q8 {3 w6 mset ymax 1.0% K1 ^+ L* f0 _* y# z5 l" Q" z# W4 \
" z8 `) l0 Y4 u0 V! |clear-all-plots. {4 q4 b$ b4 l
V& a9 i; I; K$ x4 T, ]4 [" p
setup-plot16 s/ D# S/ X) M8 y
% T; Z8 b9 O6 L; }7 L: s
setup-plot2
( Z) m) Z4 A+ R' _% D2 m
' Z5 d0 b" [2 Z, N, v" ?& Qsetup-plot32 o7 S% O- W) v( O/ z
end% t/ h1 Z4 [& N+ f* w
G5 C0 G" O3 A" S6 q6 G; M
;;run time procedures. L& e2 [$ B8 K6 }# e: B
& p) l6 l3 {9 L" T& M+ _7 Cto go3 `# o" l7 r$ u9 [0 _5 ^
& l @" j j* {2 S% P5 R+ j* j
ask turtles [do-business]+ Q( @. W' h6 E* i
end
" i5 `% u& |- w% L" y0 q+ @+ Z4 q! U& m# `2 z' V
to do-business - _7 G8 G5 u' O6 L: x! P" P
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6 ~% m1 O( s$ M" W6 [/ A2 n
rt random 360* s/ E' D" \0 S
7 `2 X! ?9 Q: R9 G" `% O2 \fd 1# L1 ^$ G9 b% Y0 B$ v$ H0 x
8 g) S% G+ ]9 E2 M0 n" w
ifelse(other turtles-here != nobody)[
+ o9 |0 S4 |5 K" ^5 t. p9 g, g& e: S/ C7 T& e
set customer one-of other turtles-here* K# h- p3 y5 m" e& U7 K. K$ P
* a! \# \- T6 @' M; l: G: I1 i;; set [customer] of customer myself
' L1 V1 p' b" N) c8 ^
$ m2 k4 J4 y- R! yset [trade-record-one] of self item (([who] of customer) - 1)6 t3 t6 g9 ~6 g
[trade-record-all]of self: J" S5 T1 W' e! n p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 z& K6 M5 S) ]
V+ U1 A2 k( \. T5 Y- s' I* l
set [trade-record-one] of customer item (([who] of self) - 1)( h" ?# {5 V% A
[trade-record-all]of customer
2 v9 f5 g( s; ?6 H8 Q
" p( \2 W& `" e- ?: l5 {set [trade-record-one-len] of self length [trade-record-one] of self
5 y9 `% `4 w0 D4 k* o: |
! L" t) g8 H: k5 ?! Zset trade-record-current( list (timer) (random money-upper-limit))# k- [! c9 a& n. N5 m; H' F
( n2 [- i0 t5 t8 P, eask self [do-trust]6 `% g7 v$ _/ K. l. W
;;先求i对j的信任度
0 q$ k5 |2 [& }' J. ^3 p+ e/ Y d. u1 }, M; P9 a3 t
if ([trust-ok] of self)/ O) U1 d3 [3 Z0 b X
;;根据i对j的信任度来决定是否与j进行交易[6 t8 x W2 a* K! Z
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( ]* M% |; S, y
" a" w2 B1 O1 X& C[
, A9 ?* \; ]* r8 p2 H9 }1 F, B8 w( F) {6 @
do-trade
" Z6 M( {$ t! g3 E: g& `
$ |; }- h6 ~# v6 _/ |0 {update-credibility-ijl. ?7 B. x: n& ?" k# |; ?
6 }( X6 o' @: N$ T" q) k+ H5 z) Kupdate-credibility-list
' c0 j7 @4 _& W9 q5 I! e, U
: }0 r* R! F2 p8 J, f3 F2 N$ `6 x2 }* l' O5 T h, y5 j% D+ |
update-global-reputation-list
! B8 K- o! f$ M
$ P; S5 L3 h" q5 q- B% S& M5 Jpoll-class7 g9 d) w6 p" {% p% q- z0 T; } }1 i
" K+ K6 z5 A; u9 Y8 ^+ vget-color
3 z/ @, F# z/ e/ t. y/ e, r: H; [5 b5 r, L) j
]]6 ?+ U) R6 Y" t# Q+ j
7 |" v2 ]; C/ r, U;;如果所得的信任度满足条件,则进行交易$ P! d# y. G0 G4 E: l. n
7 S% j6 P( m6 d" O/ @[
7 T/ m { {5 Z3 \7 _) |
$ I* V5 |1 {$ O( ]- b* drt random 360
5 Z+ e9 B, z6 H# j: \
9 Z' _4 f7 M; o" }9 `fd 1
2 Q& C: T' b+ x4 z/ Y: b5 {1 M
8 j/ k2 d6 M7 D- u]
, a# M- H+ f7 Y$ `8 x4 U- Y6 I1 B+ d j- V" Y9 H4 S
end$ X: K7 {2 g" Y, p
; X% p4 C L( A8 L1 S
to do-trust . U, k0 ^3 n3 ]: s0 t
set trust-ok False6 T- M) f8 {4 P3 N
3 g0 H( y- |+ T$ f
; r# Q a& A. G* i( }; jlet max-trade-times 0
3 S2 O0 e+ e6 d+ u! Yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 C6 z# X9 V* r% w8 U1 R) K
let max-trade-money 0/ }* j& g- j, {1 W0 L& i
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& K; l9 p! T1 K# S) qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 l6 U* n. C$ p8 ~( p8 ^
4 V5 t6 Q1 q7 @ s; d" R
% T% M6 n; N, e! Z$ s
get-global-proportion y8 S1 ]8 n0 A' X1 g% j' j
let trust-value
! f2 P+ `0 J/ y D* b5 zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# G8 ?; K* C4 {# R p
if(trust-value > trade-trust-value)% F! j6 S7 n3 q* I
[set trust-ok true]$ s. H8 {/ F, W) v4 W- H7 z
end
2 k/ v C6 v" n- \2 f7 P( f5 H
8 n. O# G; u( I% b7 [3 d0 ~# Yto get-global-proportion
- b' _8 H" o* h" p6 e6 E3 C. ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) I& A8 A# t- c% N) e
[set global-proportion 0]
8 r# J0 X6 k5 {4 ?& w& U[let i 0" I; x y2 C; c& [+ V
let sum-money 0- ?$ m2 h4 ~# ?3 o) e/ N8 _# m
while[ i < people]
2 E* g8 r& k1 }# F2 b3 f5 Q[/ r9 u, s' i9 j) t/ t
if( length (item i5 k! n/ ]( ^3 k* }/ _% ~$ m7 c: F0 l x
[trade-record-all] of customer) > 3 )( g& G% V* G' {0 M8 s7 Z3 A
[
+ K2 z4 Y- s; L% m4 } mset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- e1 L9 W5 _6 c3 o- H]. b2 v. v: ], \: T0 G7 v/ N
]
% V' K4 C3 q" B* klet j 0# F S2 S9 c$ J3 W( E7 S
let note 04 i! B2 w6 R; @# H4 I" v
while[ j < people]: H7 n& Q O9 W g2 V
[
0 z" x: h/ x: A: e ?% F% kif( length (item i
5 v0 D' o+ p) Y! y3 b[trade-record-all] of customer) > 3 )
/ P6 _* P% j! a* P" h[* h8 V% Q3 p* b. y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# t9 I3 i8 \7 T# @& o. O% o# w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! } T! R- m+ M/ q9 M' ]; N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 ~! @: m1 D1 R, o1 i# |], [; S4 A+ j* l: f8 ?
]; q; B9 v/ h* ^0 D. G
set global-proportion note, j: ]$ H) v8 L* Q F @6 F
]
% I0 o3 {' Q }' d4 p3 Lend
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to do-trade
0 a% j2 K" G) _2 w;;这个过程实际上是给双方作出评价的过程$ Q1 v4 @) ?0 L# Y; h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 r9 j) C" o* W& m- tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( V7 C+ ^, G' U- j% T+ w) t: i
set trade-record-current lput(timer) trade-record-current- p+ G. M' ]" W2 ^/ C
;;评价时间- _0 I; E2 Z6 c8 H# y: Z! P! k& T4 C
ask myself [5 S: ? s7 P- ~9 p% ]
update-local-reputation' I& d6 ^& U+ s# }2 ^
set trade-record-current lput([local-reputation] of myself) trade-record-current k# z9 E; H) }. Z! {1 [& n" |
]0 y" Y& h7 C K$ q# x9 p
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 F- O6 p5 O7 o9 H;;将此次交易的记录加入到trade-record-one中8 u8 B0 {/ f, D2 n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 T2 J3 \) E8 d3 S# ^) p# U; F$ e
let note (item 2 trade-record-current )! S z) K( q4 ~- Y9 R, X4 @
set trade-record-current; e. O% V, L+ M/ @5 i1 O/ R/ A
(replace-item 2 trade-record-current (item 3 trade-record-current))2 T+ l# a) U; W5 U, h, N7 b
set trade-record-current5 L( u5 O! i& M/ {7 `2 J, z
(replace-item 3 trade-record-current note)
: H# b. U/ o$ [ v* X+ m6 M- Y f3 P, T* b6 U
- \' |) m4 W3 e' Hask customer [9 j3 z! I$ K' }& u
update-local-reputation9 S3 }/ ~" f6 t
set trade-record-current9 y7 ~5 O6 {" s
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 v" [# j) o: ^9 R
]
2 b) s* g S# Z! `7 E) J ^( T% { |+ m/ k1 D2 @2 r
6 b* v* }3 N pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& q7 }0 D/ z7 n6 [: ^& _8 S* [& K9 ?
0 l4 x- f7 ^9 b8 v- V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* u7 N& H. i; Q4 y;;将此次交易的记录加入到customer的trade-record-all中
- ?) }7 C/ F8 l& ]( {7 P C/ p1 Dend6 B3 S8 e b5 }; r# }2 f% d
i. K2 T* c9 S+ Y% ito update-local-reputation. R4 V: j& b" Z& x; Q/ }* z: A
set [trade-record-one-len] of myself length [trade-record-one] of myself2 S4 M3 U$ L" H0 _3 C
8 @7 ]* K7 e& F
( C! n" n& u+ m7 K/ C) M;;if [trade-record-one-len] of myself > 3 0 X7 g( v+ f, @) o
update-neighbor-total
7 x7 k7 H- Q5 p;;更新邻居节点的数目,在此进行4 h0 N8 m5 e8 m! X/ _8 B- P. V
let i 3
1 m; H6 P4 z. M, ^* ~ I, z8 Glet sum-time 0. @0 q+ q# y$ K% @+ J3 Z; f. X q
while[i < [trade-record-one-len] of myself]) L( N, k s5 g5 C, K' r Z6 S
[7 ~& _( ?6 p: p; U0 G6 }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ L$ k8 O' u# M
set i
7 a4 C5 ^5 I2 E$ {( i + 1)
; \6 Q8 |" F/ v7 y6 F6 E]$ Q# U! O" t2 Q" t
let j 3+ l: x1 C x, F5 B$ b5 f
let sum-money 07 t4 o7 u7 k+ S
while[j < [trade-record-one-len] of myself]* a( R( J& W! j; |( p/ N. h
[
. e, [% l* H& K: w% L0 B/ Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 ]+ h6 r- `& w$ ?/ R* h. J8 x
set j
" V0 r$ ?: J7 v: L" M( j + 1)
7 _& h; W) m& v]
' J. c1 W$ j9 q; v4 U. Q" x9 Xlet k 3
; v9 h" D. z6 G% W; Y8 Xlet power 0
0 v8 } \; M5 L5 ^6 O' Plet local 0, |/ K9 v& o. N& T. Q7 S8 T) I
while [k <[trade-record-one-len] of myself]4 E* r; [, |* z: [9 j6 N0 x x
[
- i& Q- Q+ ^+ ~" ~# uset 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)
" Q+ t& L w9 I1 m3 }$ ~4 Jset k (k + 1)9 E+ ?9 ^* ]" o1 R8 k h
], o' u t! D- b+ r2 @: Z
set [local-reputation] of myself (local)
" V" T/ m& s* I: uend' U* T9 [# N2 K! [: Y
p* M: X" W7 ?7 l" Mto update-neighbor-total# W$ D8 @5 k' p: o2 i
: @3 Z% Q2 u2 e" O2 V \/ e& x- Yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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9 N9 H( P$ e5 Q0 Hend1 K. a2 F; j) j" [
K( J! b# |9 p' g7 h0 C2 C5 R e
to update-credibility-ijl 5 d( M1 ~: @, e& a
8 S" h! y2 p1 i7 |5 r
;;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。
# E& l1 e+ `/ @. n$ q/ }let l 0
1 y& p- g& A- {9 R W- C8 {while[ l < people ]1 e' e9 O8 w2 _
;;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
: S' z- k2 p5 g# c( v( R[
/ E/ d( m1 W- V0 y- n& hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ Y1 Y8 G' S6 o+ mif (trade-record-one-j-l-len > 3)
+ N$ D) H6 ~8 b' v! U8 r, x[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, S# B4 V) v6 x+ ^! r: p5 {8 \) f. V
let i 39 K+ z- w% V0 }* }* B0 O
let sum-time 0
& |5 `6 [$ L9 ^( Dwhile[i < trade-record-one-len]
1 C2 A: [" ~2 J9 G* e& D9 p- L[
x9 t/ R* E' f9 U$ @4 Z; @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) e: L$ @& m; l4 ^set i
2 O+ U9 z- G4 e- _6 Z& A$ u% R1 y1 i( i + 1)5 L& V* q5 w6 o+ k" S0 d* O
]% B3 h0 b- u" J; ?
let credibility-i-j-l 03 C9 {0 Y4 d9 ?8 ~8 z
;;i评价(j对jl的评价)2 L5 t9 }6 Y$ X9 e( B2 Z) f
let j 38 F7 ]2 o/ W5 m, G2 Y
let k 4
3 M7 P0 E% ~6 l7 s8 K* t4 M; j. cwhile[j < trade-record-one-len]. M; w4 N, `$ o; ~
[
( j9 w% ?" g) f/ iwhile [((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0 \/ B9 w; N$ B! C8 O
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)! F' ?+ D- p: h- F* h
set j
- j I- m* C% C$ p1 s6 _( j + 1) W7 y' J. `' t4 @
]3 y; w/ O9 Q- W2 ]1 l5 o6 y
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 ))( h6 O; G. Z. b9 Q0 F
5 m5 n4 ]5 U4 y1 |
# ]/ m, u* H9 y6 K
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) l( D d6 {7 f+ I' q I8 [;;及时更新i对l的评价质量的评价
' R+ \$ T$ H* K2 w D* Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% a7 r& h( x, a, P
set l (l + 1)- j: k6 |7 p- Y8 b4 ]7 }0 C6 e
]; [) S' {( ~/ b( P) ?. D& j
end# C! R# b5 j2 {1 x* f! Q+ b
( O3 Z3 C+ N) x0 b6 cto update-credibility-list3 D& {0 N( K& l G# n/ T. ^
let i 0
/ U- g5 e2 M( D$ v- Hwhile[i < people]
7 m' P9 w4 y" S[
* m- C; B2 [! Olet j 0, f2 N' n$ U! A4 ~5 ?$ K+ ?
let note 07 Q% j6 ]% v8 }! m3 D* Y# x8 s" J
let k 0( _7 E0 F6 p2 L n
;;计作出过评价的邻居节点的数目8 h6 B( n" b" M+ @' J
while[j < people]
( M+ [( C/ G, l2 j0 j6 \9 h[% D3 t2 v1 d$ [/ P X5 ~
if (item j( [credibility] of turtle (i + 1)) != -1)
. [6 ]7 q. x1 v( ?1 w# F;;判断是否给本turtle的评价质量做出过评价的节点9 \+ {2 I& I1 p g9 E
[set note (note + item j ([credibility]of turtle (i + 1)))% z/ r* k; Q; U! o9 h4 d0 H
;;*(exp (-(people - 2)))/(people - 2))]5 A. ]8 j8 a5 f# ]: h
set k (k + 1)
$ [1 ]0 {" h/ N3 W]
' y& \ x( ]1 oset j (j + 1)$ Y1 \* V1 x9 R! N" d8 f' H
]
8 h0 x' t: @; aset note (note *(exp (- (1 / k)))/ k)/ U. H' L5 c$ K1 m( U/ n% {8 h
set credibility-list (replace-item i credibility-list note)
; C, @# r9 G9 o0 Hset i (i + 1)) ]) [4 i+ x1 H& _
]
1 R' n3 P9 I* ^- D e6 E# z3 cend# ]( N ~4 n" o$ s. i0 e6 B2 _
, y3 }9 n; P, n& e
to update-global-reputation-list
9 I7 L- k1 Z9 [let j 0
L" y& [4 t" Y+ N& swhile[j < people]
9 H; }9 l, Y0 l M' Z* v; {[
6 T* O& J8 k$ ?& y1 zlet new 0/ `/ E7 |& m( }6 [& E; O
;;暂存新的一个全局声誉
. P% S" Y7 |; Dlet i 0
0 Q6 `4 ^2 e @( {5 P1 xlet sum-money 0
, t6 J- E6 a8 g: j$ zlet credibility-money 0
) l2 I+ u: x) E: ?; p2 R( m. hwhile [i < people] q: l+ s- S/ \( ]7 q- g7 ?
[( N% i: K4 s5 C8 e( X2 Q3 n M' `3 ]3 _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 r6 n/ e; j1 I; V7 C1 m% z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# A. T* s4 d3 e3 t8 a
set i (i + 1)
% L2 y( o$ f: o" D# ^, r4 \6 Q]( u' v8 n4 I8 p( [+ @" z* ~9 y7 I
let k 0
! E4 D1 ~" P9 J. W2 alet new1 0% ]& z1 m( q# w, y( R* }1 k3 O7 s! B, z
while [k < people]6 e- A$ K4 l& [
[
- g2 o2 }% m T1 |. cset 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)
' S" S& W r1 W; d! x. lset k (k + 1)+ @) E# _/ x/ i! J
]% H4 B' w6 x A9 R
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 B* @8 x: w* Y* `
set global-reputation-list (replace-item j global-reputation-list new)9 J/ n k/ ^' Q; Z' c* ^
set j (j + 1) o" H' Z* N' v3 O
]4 }/ L; e& b3 p/ O2 Q4 K$ \
end/ i5 Z V0 s& w) a1 l1 D
v$ J. [' D6 [# c; g
. }2 ^) F& ?7 b+ E* ~0 H! a
. k p' M/ E, m c2 `) c4 _6 k
to get-color) y/ I4 q# y( ~2 }" g
0 |! V2 q0 {4 W n) N$ _set color blue
2 \8 g' T/ x2 x3 Jend# z8 ^! ^! E; g+ [" F. W
/ }# @' a6 G& sto poll-class
" z6 G% H, p! k* c3 P9 B# s! ]end4 i* Q1 t+ j! P: b- Z! J% M, t
' q6 j3 B) _* j% F1 U3 Y. d
to setup-plot1* x8 \" {" D2 T% M" a( G! }
+ O5 I0 ]9 W) d& c9 g
set-current-plot "Trends-of-Local-reputation"4 j3 B* a9 m+ K4 ]+ p6 D- [
* U6 q% ]1 x( x$ L( W+ C `5 x* x
set-plot-x-range 0 xmax
9 H% ?& C$ f# z* |# c8 n3 Y! X
* B* R3 J u; r8 ^" mset-plot-y-range 0.0 ymax
+ o' o$ w% b Z \4 Yend! z n# n U0 h2 b3 U3 p) ^* p$ Y% M N
! @6 t# p) h. T4 T1 Z7 h# V5 `, c
to setup-plot2
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) }7 @0 v' U, ?0 r' U8 y" Kset-current-plot "Trends-of-global-reputation"2 D. A, T; l Z ~& X4 g
! q7 f$ H; ]5 K, q6 H! f7 eset-plot-x-range 0 xmax# m7 C! O$ ^+ E% @: Z7 D6 d1 o
1 n* Y* V: X; b+ q( u
set-plot-y-range 0.0 ymax/ g1 m9 a' S% q3 o, A
end \8 {6 `* k- @4 \1 f: B- e
7 J! P+ @) G7 T1 Pto setup-plot3
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set-current-plot "Trends-of-credibility"/ O. E2 W7 P6 B$ j. j& Q8 P
Y2 q1 ^# f' y: [# g) @( S7 K/ h
set-plot-x-range 0 xmax
4 e* k" O$ f3 Z5 V& V8 X: q: U& o2 ]6 [& ^5 t
set-plot-y-range 0.0 ymax: x& b: q) g& t L# E
end
3 h! t1 h7 B" w) c" o6 s6 `) [3 k, ], C- \5 W
to do-plots
8 S5 G3 P2 ~( o2 H& w* y$ @$ J- i' L* Oset-current-plot "Trends-of-Local-reputation"
$ R, d/ @% ]6 s1 e! y- Sset-current-plot-pen "Honest service"4 f0 M! \4 |" ^6 }
end+ B+ X) b3 ~9 T1 ~/ F
% y; O2 Y8 H& y8 n) e[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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