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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
# T( K3 W D ?" o0 fglobals[
8 ~/ F p- z: l( D" Sxmax
* l9 f& O4 v. X; K" J% dymax/ [. M7 w9 O& V% W) q
global-reputation-list
% k7 _0 o! A- A/ S N* C
4 ^+ s; S8 i. w+ O;;每一个turtle的全局声誉都存在此LIST中
. f8 S1 }; f1 @7 ]) J3 }credibility-list5 u7 \3 I5 i$ k+ [. V, m* \" \; k
;;每一个turtle的评价可信度
6 p' U' Y1 T5 Z8 c( B6 vhonest-service
) {( L/ Z( n# l/ D1 Funhonest-service
i* ]4 Q9 v! H) U4 xoscillation
7 c8 q) ]& P6 q8 O6 _# Frand-dynamic
- t: a& J; Y, Z6 e4 @]
3 v* R- R5 L4 m6 P( Q/ c! D
! e6 P3 M* _: M$ c% Sturtles-own[6 D c8 b3 @5 M& V& O
trade-record-all
* x6 S8 a% U2 F; m* U8 d;;a list of lists,由trade-record-one组成" ~1 ?* z( }4 l9 K1 o3 Y6 a
trade-record-one
) U. Y3 h1 C2 {: S$ |5 J;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. f5 ?7 \' }, C; r; \, L& R, P4 q
* N* z4 m+ @ V+ c4 {) B8 N;;[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$ C; s3 r8 d- Z
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]
; b5 V( _8 |6 ~0 o' k- |* H- hcredibility-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
6 t* v' u3 A" ?- ]neighbor-total
`0 q4 A4 K6 f% p;;记录该turtle的邻居节点的数目; ?3 ^# k3 Q; S- V) H' m
trade-time1 K4 B* U* \5 F% g# k7 m) C
;;当前发生交易的turtle的交易时间- F4 w% \' _8 G
appraise-give7 j C8 O( Z- y6 M4 i6 x
;;当前发生交易时给出的评价2 O$ c: m& Y8 T( U5 e% u
appraise-receive
5 S8 f; I8 h) m$ Q: L* q;;当前发生交易时收到的评价
3 Y. G3 G+ C0 S8 eappraise-time
1 Q2 C# d$ s- O+ };;当前发生交易时的评价时间
; z @5 ?- T- z% `. U# nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉( i9 z; X# {8 f; R m3 X# ^6 d
trade-times-total
# Y$ t3 C+ Y9 @. y8 j+ O;;与当前turtle的交易总次数
, s8 Y, D9 h) N& h; G" @trade-money-total
c# ]( \# G i3 H! u3 c;;与当前turtle的交易总金额
. X. E; h. s/ v- Xlocal-reputation
( B7 r! b) n, C ~1 J6 U2 fglobal-reputation9 o# h" [6 \$ P& V9 X% o4 a
credibility
2 A9 a" a7 |2 N1 e$ a% y* n3 S;;评价可信度,每次交易后都需要更新 l2 |! J, O% M3 c) U- d
credibility-all* [. |/ C2 d4 o" 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 K) N6 C: |. x b5 c- }
6 J( N- u& X( f2 g6 C2 K/ b;;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' ~1 _( M8 i+ E( ^+ V6 k! J
credibility-one/ C3 x: }( D( s! l' X; C2 N
;;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 Z4 A/ M0 v; r5 d* T1 G5 h
global-proportion
r" M* h# x2 t* [* ]9 zcustomer
/ ?( v* F1 |( ?- C5 G2 P* L$ ]/ }customer-no% l% p% ?' a q* u. R2 u$ H- }
trust-ok" e& `! R l/ M; {0 P& E9 O, t
trade-record-one-len;;trade-record-one的长度
% @% x' o, [; R1 V]2 z2 P* A/ M* G" w% H( X
7 S' V& a- }/ E# V* c0 f/ I7 F
;;setup procedure
4 l/ i2 I, ~8 v+ Q4 W$ v: X0 N" ]5 V0 d2 {2 a6 U: j' q
to setup( y* M% A' q! V+ n! y
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ca6 x& b/ E: m' e2 f/ x
0 L8 f' p7 y4 R! \) n A" F. o) x! G
initialize-settings. ^0 ^3 R6 Q2 G( Y3 c- i t" @
$ m% ]3 r" ?, J V, r9 F# t0 l( c! `% O
crt people [setup-turtles]2 t7 B9 t% X: x8 S2 Y
! q7 d% J( n6 w1 @reset-timer" z0 Z: x8 q& i& t! o
/ Z& v3 E1 l: f
poll-class
. l. S* Q( ^6 v
& i' A; j# ]$ W/ e+ ^setup-plots6 [8 E- S* m" y9 q4 d1 G
+ u! q" `, j- |! |7 E5 B5 i
do-plots
; ~ q! u4 o' Rend& ]" V- V" Y& ]) o* R
; S) m0 i. F8 G$ L# Z
to initialize-settings
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set global-reputation-list [], [. t! o/ {0 A+ A# D/ O4 C5 Z/ Q. j
$ @9 b/ D8 Z/ _/ F. J
set credibility-list n-values people [0.5]
6 Z% O# k( e( c7 c- N
" `$ ]* [# }6 L; k' Oset honest-service 0
4 N: l8 ^* D7 r }4 k3 G
$ i7 T/ _$ o% |( x/ {! i9 E6 K2 Yset unhonest-service 0
: F2 v% b' s- }# g1 M3 f9 i$ M: R7 |7 e, N+ w7 Q' e$ j
set oscillation 0
' N# W$ C% l1 S* ^- k! F" G5 @" J ~1 n1 J
set rand-dynamic 05 F* i# i1 U4 M
end8 |& l$ c+ m8 W) X8 Y4 ^
t( f1 Q M* {+ `, a" b8 y( j
to setup-turtles
/ E- V2 J) W6 S/ h) x# m2 v9 ?9 d9 Rset shape "person"( l6 Q* r; ] a: x
setxy random-xcor random-ycor
+ y2 G; B, T% }set trade-record-one []
1 _" k& J$ e* V8 q4 G8 \5 P8 [ K1 t8 x' f" W2 l
set trade-record-all n-values people [(list (? + 1) 0 0)]
+ _; Q+ b: B) R a4 {( f' ]8 Q
2 ~ ?2 O f; F& T! U) M& y* @, }set trade-record-current []
; S" G. ~3 R2 r" ~9 Pset credibility-receive []" ?7 ~8 ?* Z, c# B' I, f/ d7 y
set local-reputation 0.5. T# |+ ^1 ]+ M7 j; i- J3 h F3 }1 T
set neighbor-total 0
: g5 i8 X6 W7 X6 y! P1 cset trade-times-total 0
9 v/ V' C; L6 h& Fset trade-money-total 0$ Q! `" z" A" P) ? e8 ~5 d
set customer nobody% B7 a8 a q, H6 I- {7 h+ ^# Q
set credibility-all n-values people [creat-credibility]
3 K) G0 l* N' a. R: @$ Dset credibility n-values people [-1]
/ I0 C' }# k5 G# C1 Zget-color
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end
& U4 N6 \/ n5 W1 e2 A
* u, J% p ?8 I+ r8 `to-report creat-credibility# J& O% Z+ r6 X1 P
report n-values people [0.5]
$ p6 Q( x1 E- I+ mend' G- H, e3 N' q- o. Z8 Y2 }
7 U- P" O- v* W) D1 w jto setup-plots- g6 A, V* w G
& Q( B; ], _9 |7 \9 l
set xmax 30
6 z* V. b$ O- X2 H
% ]. m2 _9 W% K, R p6 X3 T. nset ymax 1.0
% `" O4 @' t5 a% r' k! W( S0 t C
* c& M4 ]* B& ?- y) b( w# Kclear-all-plots6 M9 s) e$ B+ { _$ x
/ W7 Z' {0 b: ]$ }$ R wsetup-plot1' k4 }$ b' \+ x* m: M
1 r: `4 `8 `/ q; e7 ksetup-plot2' t, i P9 Z( n& [9 ?
! ?+ M+ H, E0 Q( y
setup-plot3' k& }& Y* A$ h" o5 f
end
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, |3 p- Z8 n6 D;;run time procedures
9 B7 Z3 {' t2 |
, H" p5 a6 H& A$ Cto go
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7 h6 E0 z3 H& c* u/ [( pask turtles [do-business]; _: ~- o- h. c( @/ ^1 N) \
end9 \. Q% g8 {* r; S6 e
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to do-business : t- k6 L: `; i9 i
8 i" b3 M' B* S" r( G) z
4 Y, q2 {- h% Yrt random 360
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7 G$ A, `" c. m* Z5 bfd 1
5 Z2 z, n% X% V) u0 z/ R( Y/ `6 U" ~8 c7 Z
ifelse(other turtles-here != nobody)[4 O) t/ x1 `$ \1 y: Q$ M$ h$ ~
6 E6 t/ \7 |' k; A4 K7 f5 e, S( lset customer one-of other turtles-here& U2 y1 R1 A( C8 Y! Y* i4 `2 B8 a
" ~3 ^, k& [$ u; ]& r, v* S
;; set [customer] of customer myself
. x- R& K6 _4 ]! V* u. ~, B7 }# a' g4 L1 |4 m# I" ?
set [trade-record-one] of self item (([who] of customer) - 1)
0 X `/ `) r8 }0 ^4 n. i[trade-record-all]of self0 \% h. l* w5 ~3 |# Y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ v4 t T4 r8 x& s5 w7 L% g$ l, J
1 [* J7 Q( f& J) O9 r, b+ jset [trade-record-one] of customer item (([who] of self) - 1)6 ~3 O0 m" |1 v, n# L. P1 C, v
[trade-record-all]of customer
. V- q/ z# ]3 A
: \& r7 C3 U) pset [trade-record-one-len] of self length [trade-record-one] of self
3 ~( M( u, X8 \
' e, D; w. m: d, t8 t% u, gset trade-record-current( list (timer) (random money-upper-limit))9 h' e( J [8 B
7 z0 z) G2 |% b4 q% _ E( ?9 P# T
ask self [do-trust]* {' G3 _% P1 j, N: I# S+ l# W
;;先求i对j的信任度
4 v7 U" n2 x/ I
+ m+ B/ @9 E9 s2 Jif ([trust-ok] of self)6 V9 o- O# E# L$ d1 Z
;;根据i对j的信任度来决定是否与j进行交易[( A; e2 ~( f W: _2 H2 a
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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' ~ A- t7 w8 p5 R# i7 G7 r; O[* u N/ Z a1 D+ o% S* w. u
/ K# z1 s' y: c! M- vdo-trade0 k1 w* ?; C/ \+ l4 K! A( R
& c0 l" ? j- c7 G
update-credibility-ijl: h6 Q' g% O4 {' {6 Q* u9 Z* A& L
0 M! z5 |$ g: C: w- ~
update-credibility-list9 o& @4 l% x" r% ^9 M
* R3 r( t8 A1 H, p
/ ?4 L: G& B6 |1 [. ]6 uupdate-global-reputation-list8 M* Z' C: w; k
! \% @, A$ ^: v( Lpoll-class" i7 f- k! U% y4 M1 }# b5 i
# y4 L9 m8 @9 f* p
get-color
" N( T$ Y$ P8 s% R/ l3 h4 S4 Y2 p
]]
6 H. q7 I; f- E( j
4 w. k+ ~( Z c# M' v( l7 x- X;;如果所得的信任度满足条件,则进行交易7 w7 t) ?; ?5 n O. ~
" A6 G6 w+ a( i* p- r4 I* w[
' n! }. l$ [1 l* c; F& d4 M) W- `% s0 A# o9 ~
rt random 360
2 K4 A) t$ s" L2 N+ \9 g# r2 O% ^2 M" h/ a- R# H6 _# x# P
fd 15 J8 R1 B) [' u, p. s8 Y8 X
8 l$ y2 A1 y Y, C
]* V) X7 j9 \1 a0 K; o, k6 [$ I
; M$ {- A6 c# |! J, m
end
$ o4 ? K' E+ B% ^ N
" z7 x3 F) v. k) V9 Y$ ?) T- Kto do-trust N3 S+ V; n% a
set trust-ok False
) G F* V9 m( O! ~$ L0 K ]& h0 n+ z+ q0 }, S* b% \
8 w; q. E$ ~ A. }. hlet max-trade-times 0! r" ]3 X% B4 R
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: [& q1 X4 N+ w D6 s: s! Q. \
let max-trade-money 0
( I+ Y! o7 C" t+ c7 j# d( k, gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 Z! S1 g7 v6 L) }4 n& e' z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& |# G9 G U3 z" ~8 d H* ?# l7 f
" v; s) ?6 `6 |
5 i7 w) F' ~' O: F# l% P' M) M3 aget-global-proportion
) A' W7 r5 H2 H6 klet trust-value3 k' f9 J! m. e
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)7 V9 B9 _5 n1 g: n4 v6 L
if(trust-value > trade-trust-value) U4 Q. P( Z6 }! _- G
[set trust-ok true]
+ ^1 T* l" {: A/ v& b% nend( m' P# ^5 \+ x5 s9 y; V5 f
5 C( P7 l) x( Z/ F. U8 \# k2 Z2 Jto get-global-proportion
9 q) | J4 q0 Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 ~' |/ e) }* ~6 Q
[set global-proportion 0]+ }. Y7 V( s; U7 H3 _- d X
[let i 0
% T1 M! c% j: ylet sum-money 03 X* P: z3 c H- j. R
while[ i < people]
( D+ N1 h/ U. v[
. @( T8 L5 J, h. m5 z, yif( length (item i c5 c. N: m4 |! U' H) d
[trade-record-all] of customer) > 3 )
$ A7 M2 v& ?9 d: @6 b[& _% a+ G1 R8 E" e" h+ M
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& Y: o1 Q6 J( c) f]
* o) a: D3 }; Y) d]
& q* Q! Z7 E) a/ \1 H& V3 z( rlet j 04 E. c. {4 b7 @/ r/ v/ A" ?
let note 0, U4 H& }( K& z$ `
while[ j < people]7 u% J$ T& j$ B- }; Z4 P# Z
[: f* c9 |; I; \+ Y; O
if( length (item i, p( | ^1 G5 M3 z. X* |0 G
[trade-record-all] of customer) > 3 )
4 a8 H+ `* P M8 Q& r[
% B( I3 W4 v* W; vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* H6 z/ _( R! s$ y! o* C9 J2 p) g2 d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& T. t4 x- A; {' h8 ]5 `
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& R1 E; O3 [4 v: o2 t: `9 x]
( z/ x3 x" w" c# ]7 y2 `; o% Z. u% q7 |]
* {$ r0 v) D- k4 C4 Tset global-proportion note0 y% k3 R4 j; T6 p6 ~# y6 W. k7 J
]$ k4 ~+ C7 L4 S$ \. h% F: y t3 R) |
end) ]7 }+ U+ B3 N
A9 {* W+ d! Y' [9 d" ^& b1 M
to do-trade
. z: H6 g/ a' s' B;;这个过程实际上是给双方作出评价的过程, ~' z9 q6 k: l J5 E5 g( H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 P* K8 Z' ~4 W# X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 W& H! X1 [" T( I
set trade-record-current lput(timer) trade-record-current6 P, N' H6 }) a
;;评价时间$ T# ?% x. B. V; E
ask myself [4 J( K1 B* A: S" N
update-local-reputation
& A6 y1 x# ~$ u: w# Yset trade-record-current lput([local-reputation] of myself) trade-record-current
# G6 v- s0 L" ]- l]: r( q8 O9 ]1 l4 ]$ W& a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' R* z: u2 d2 G3 }9 };;将此次交易的记录加入到trade-record-one中& x6 H3 V% p( ^% d, C4 c
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- ?( A6 p; w7 Ylet note (item 2 trade-record-current )
/ u7 i0 E( t* f1 C/ J$ f2 H7 u3 tset trade-record-current
5 t4 T7 r% |" I: a: |1 Z: Q' ^! R(replace-item 2 trade-record-current (item 3 trade-record-current))
* U8 {- @& g# \& R. B+ Zset trade-record-current
; k0 ^9 t( W) J; C' g(replace-item 3 trade-record-current note)! q7 W0 d5 d4 {' v0 P. g
! L( T `7 T0 \
. L W& H. `& z3 J9 ^% E- W
ask customer [) j8 E# a4 m& A9 j% m- t
update-local-reputation
6 i. ?; }2 X9 l! y3 R. X, xset trade-record-current" z p0 l" v J4 I: ]3 B5 k5 ?9 ?
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 L: T, I9 C- Y4 {0 a/ n]
3 c8 l) T' O* ]# m- a, \6 [* z+ `1 N" ]7 N6 F; s8 \6 S1 g
2 s% H# [5 }% w$ {! {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* q/ k0 a8 s9 I/ L ]: ?; j. b9 f+ [# e/ w
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" d9 X; T' J4 m8 ` j- y) C
;;将此次交易的记录加入到customer的trade-record-all中
2 ^, O8 g/ ?1 n: F5 wend
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& i5 @8 ~* a% b# P; Vto update-local-reputation: a n) ^% O0 D& O) W, ^! M3 c) d
set [trade-record-one-len] of myself length [trade-record-one] of myself
* h K0 X7 D! E% ?: _3 U! B% B& ^
9 a. w, ?- e: Z. C# t" N
;;if [trade-record-one-len] of myself > 3 ; S" C! g' {* r( ~
update-neighbor-total7 W9 q- Y1 N, p6 Z
;;更新邻居节点的数目,在此进行
; C! k2 R r' n+ C3 p3 tlet i 37 g" a* c: l: R7 I6 a
let sum-time 0
. ~2 G/ Q& P* ^# S9 Wwhile[i < [trade-record-one-len] of myself]
9 Z+ t5 U. |. Q8 n, c8 B[5 |3 z V2 _2 K. N
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 W( b; E/ `7 ]$ q% O( k; |. {; d- nset i
; r& W# X' g ~- c4 \; a$ h8 v- s( i + 1)% ?- E+ X0 D+ h0 V2 x
]- C& \6 O9 s1 W
let j 3
& b4 i1 h2 r' T/ |0 y! \; Glet sum-money 09 ~. B; y) N$ e# q% f# w8 s9 W
while[j < [trade-record-one-len] of myself]% b8 w# D& r) |; o4 e
[4 [0 T4 q# Z1 e
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)/ o+ q# i; v+ e" n! `+ q" O
set j
9 t3 D: x5 H6 M( j + 1)
" V3 \: c0 ]+ U8 _, E]' S1 `% T x, `3 ]) G
let k 3* p: }0 \1 r* A( c% `+ D5 v
let power 0
' `$ w" _% d( ^9 vlet local 0" Y. a/ a, p9 i: D1 I( j1 X( P
while [k <[trade-record-one-len] of myself]5 |* _0 q1 ~$ X
[
5 ~! G. A% t8 ?set 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)
$ E9 ?, T; ~0 Z0 L5 g. J' Z8 Jset k (k + 1)4 n, C% N2 i$ G
]$ {. V% {- u. w& [* n& q
set [local-reputation] of myself (local)) V4 r& [, L8 p" w0 U) }8 i
end
7 M2 N- Z. }' k; j% L
! G5 Y; [/ x4 H1 k+ C) @3 i' [* _' dto update-neighbor-total2 Y8 d- D% z$ t" M8 ]5 E( Z
/ ^& t) X, V1 x5 [, J" ?" C* U
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ @* \+ h* h, Q( u% F% |. r8 C% ~ n* C: \4 u
end$ w+ S% g* Y H' B* U
0 ]! X- V( w" l* v. ato update-credibility-ijl
8 @: P5 ?3 _2 C! t4 \% H: O* T( Y9 f5 o8 X, z/ H7 j6 O/ o
;;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。
' T1 o& W, ~; W5 u/ B9 r2 i2 blet l 0
( d9 [0 Q ^7 c/ H3 ewhile[ l < people ]! S+ X# Q7 Y, z2 e s2 r5 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
# m5 p, k& o+ I, W1 o[3 g6 k0 s( B: ~6 f# p6 ~" F
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ M% S8 Y/ P( kif (trade-record-one-j-l-len > 3)
1 x: z/ u+ u+ l7 @! w! R[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% p9 L1 s$ S/ J
let i 3
$ F; Z; P* b; ~! t% S& y9 |let sum-time 07 ^$ N: w0 K; z
while[i < trade-record-one-len]1 @. e2 u+ i' u, v2 e
[
( T) \! s2 a& O. _ S1 I3 a& iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' S: e( v6 B; b( Q1 R( Tset i2 g* y/ c* d: r3 H& U/ y, M
( i + 1)
. I( g$ b1 D% B* i9 V6 G- G]# w& D& M H1 _4 Z, N
let credibility-i-j-l 0+ H1 h3 K( K5 ~' V* [2 i) f1 O
;;i评价(j对jl的评价)( F' F( E# B# D s# }8 f" R
let j 36 v6 k# H$ }8 X! ~. |
let k 4
+ N* r6 b+ W0 D# twhile[j < trade-record-one-len]( ~1 {3 `, B# U" _" X% U" u
[
$ [7 u8 d' c; `# H& x8 T9 uwhile [((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
4 X( ^1 \# ~4 A. x- @( l" ]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)
# `: M8 P$ y" ?% qset j
3 k6 T8 _3 Z' H# W6 G) h( j + 1)! X! B: t' g7 g9 L3 J3 M) c: i
]0 p+ Q- p5 T4 X. j5 |
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 g+ M3 P" v$ Y/ g! `% c$ X
+ z8 z4 G0 \- Q2 X1 Y
8 K2 a" f3 R* j- t- y) S( Olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. k" P# d4 O3 p1 Z' h, T1 {;;及时更新i对l的评价质量的评价; D+ U2 F9 Q) ]- z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: ^, m4 a2 O6 C& _! [ Sset l (l + 1)
2 B" N" L4 y2 c" L], O- a0 T0 w* r
end
; G' h K& G9 V8 A- q) b# U
) V% ]' m8 x8 a2 b) wto update-credibility-list
O% v- U9 J1 b# H5 v/ B; D$ dlet i 0 r/ V' [( G' y2 z
while[i < people]
* Z6 Z9 h& ~* p6 ]2 T; |[9 Q k( m1 m* W5 f% X3 P
let j 0
: L b/ V3 r2 E+ glet note 0
x1 _! h$ @+ C8 jlet k 0
7 _* g5 W: `, u6 s# p+ u# [; y7 q( f;;计作出过评价的邻居节点的数目9 O8 R' X$ o! o9 [+ q
while[j < people]+ P7 E ?0 |% g5 `
[
+ ~4 L1 Z' m8 s! Y3 u5 Lif (item j( [credibility] of turtle (i + 1)) != -1)1 |8 L: I5 C. s' p( F
;;判断是否给本turtle的评价质量做出过评价的节点+ q8 k3 Z0 ^) u) f7 Y
[set note (note + item j ([credibility]of turtle (i + 1)))
- |* b, _) j! x. x: q/ J1 N+ V;;*(exp (-(people - 2)))/(people - 2))]/ @& A" ]# w! @6 g
set k (k + 1)
: f, m6 N5 c, J; a3 `]! E% S: q6 {! X; u
set j (j + 1)) z5 v/ r) G8 R6 q3 x6 s
]) A/ {% x S3 g+ S2 c8 i
set note (note *(exp (- (1 / k)))/ k)5 a( T5 y; V0 p O" P& f# f
set credibility-list (replace-item i credibility-list note)' V, r x3 n! z; W
set i (i + 1)
2 n, A3 p; Q1 _8 r5 C]" J. V6 B# B) O8 ]8 N4 x
end
Q: H% ?$ |: U" N
' ~$ |: e# \1 m+ h; L- l5 @to update-global-reputation-list
3 S+ A% b& S! B- }+ f% zlet j 0+ N( R1 ^( `* w' a
while[j < people]" U* I b+ s! z: {( J8 H
[# [1 Q1 L0 e+ v7 V6 j. l; x
let new 0
/ N" D7 \. A' L2 |' J' n;;暂存新的一个全局声誉
& o$ _! o' k& u$ q3 J; \# ?) l5 ]/ Clet i 0' j3 X& m' }" t- T
let sum-money 00 X1 A& F) C6 B* ]% X$ w
let credibility-money 0$ Z+ O4 O( n7 T' B( E5 _( U
while [i < people]1 \9 b* g' G6 e2 s+ a" Y
[
0 m1 \0 S4 ?) {: F nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. l: }5 ^ K& v3 s5 yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! G$ v3 Y6 b( i4 ]+ W
set i (i + 1)
% Q: C7 l% k+ r4 U]$ V6 s2 w, o: f) }! P6 N/ M
let k 0. A$ P. ` B/ o" n H. x* ^
let new1 00 c/ f: F* v2 T
while [k < people]) T% R9 `7 ~2 A( Z3 ~$ p( o$ W
[
: _' {9 X0 m1 {! H; 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)% o$ }! Y+ S1 p
set k (k + 1)
1 d) k; Z( x) d% c( G]
, Q3 y7 ?3 N* G! n: Sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% }1 ^2 E) H/ B" Wset global-reputation-list (replace-item j global-reputation-list new)
1 r5 e4 ^, V" M% g( n2 z" c" e: Yset j (j + 1)6 S6 ^) @3 ~- E$ x
]
4 o. G4 F3 ^7 K# p k. Tend- G: |( B( T% G
' T2 _6 A% p) t [# t" r
1 x0 o2 V) f; C7 d: f9 e$ g' i& C5 e: l7 L# S
to get-color& a0 d' R5 N0 m1 W4 E6 L+ r. b5 D6 Z
7 z+ ]6 p6 }9 k, ~$ _set color blue
' g! E4 z6 m4 H5 w! wend% w& R- a9 L' J% D' W: M
) d, Q0 h P3 q- i6 r. V
to poll-class
! y, Z; X H; C: j6 ~6 hend
7 h( H3 D& y" U7 K9 m% e1 P k% f# M, {% e4 Y; [# l) I
to setup-plot1! H2 R r4 ^* [8 g& g
0 T9 I% w2 ?6 `2 ?
set-current-plot "Trends-of-Local-reputation"9 d! M; L8 b8 L4 D+ a7 p
9 ?0 p( \0 J% Q; j- c
set-plot-x-range 0 xmax
% c0 v/ ?0 O! \& k' K! X1 {
& ?$ e" Q& }( z, H* qset-plot-y-range 0.0 ymax t6 u( V7 ]% v: k& ~$ `
end
7 G4 m3 q0 x0 K% Y. [- v" x
8 f" D2 I# r" C% Q+ r9 Nto setup-plot2
* I2 f$ `* w z2 y6 b: C1 o
0 [3 ^' {6 A7 U# rset-current-plot "Trends-of-global-reputation"
4 _8 g9 o1 g) V- V( o
; z0 r- d8 h8 m6 S4 aset-plot-x-range 0 xmax
8 ?1 u9 u+ f6 v v. }6 A* N) |" T
set-plot-y-range 0.0 ymax
% `0 a6 X5 e5 g. ~end0 w+ U' s9 P. a; c0 _. y
3 g1 G, F* b% ]6 {2 _, w2 p& Kto setup-plot3
+ p) S$ S0 N' ]* s. C
" d: z! ~: n8 B; A8 Fset-current-plot "Trends-of-credibility"2 g1 M* K2 T1 c9 o1 k1 |
- w; I" o! s7 A! [; p: tset-plot-x-range 0 xmax
' M! C2 Z3 Z/ j9 D
4 C" R0 i" i# Hset-plot-y-range 0.0 ymax5 o/ w/ {/ \( K% b4 d
end
& y" ^4 H. _" B- i$ }, H6 P+ D2 H' ]2 }* T
to do-plots, F6 e) u2 D8 m% a; B/ H
set-current-plot "Trends-of-Local-reputation"5 L2 r4 D7 r7 e! m
set-current-plot-pen "Honest service"7 m- ^4 { _& {
end; j2 g/ @9 P% F: p: s; p& }. g) [
9 {( K9 H$ _- B5 O( c[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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