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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' T9 }+ a; i+ \" X
globals[
! Z2 b! J+ P, D' |$ ?0 [xmax% k' h3 v, P, Y
ymax5 O% w' S6 H: H$ I
global-reputation-list
( ]& r. b0 t K( ]' p) |/ {6 }3 D; _9 b8 l& I. z
;;每一个turtle的全局声誉都存在此LIST中
" W9 L$ F: t" Q B( q- _" @/ Xcredibility-list
$ G3 _8 ?5 V, n, A: O;;每一个turtle的评价可信度) T; ]$ X5 R7 `0 u
honest-service: t: v. ~+ H) m# o+ o+ r( i
unhonest-service. K) t9 k" @' h5 P2 a" A' E
oscillation
& q! \5 W- J- n! Vrand-dynamic
$ ] b* }# j: L]+ O. a3 j# X C" }
+ _/ I% _9 }# O& P, Qturtles-own[
! `+ y7 _, K2 a0 n# i# rtrade-record-all, N, M, K$ i! M# z0 {! m
;;a list of lists,由trade-record-one组成
6 M! E. K2 v9 A3 o5 r. @2 x. ztrade-record-one
D: m" E1 |9 `9 s3 T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% [* U0 s* Q6 M' W+ |: O! l* }, v* \7 `* M7 G% Z
;;[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]]+ w' H/ s3 s' k1 d8 U9 s [
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' ^+ Y% c9 U. @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
6 O/ ?& y& r+ U# x8 X& t! z/ p: eneighbor-total3 w# F7 a4 ]0 d% L9 K
;;记录该turtle的邻居节点的数目
4 L4 z4 n8 G9 Mtrade-time
# G5 w1 T6 s5 \ b {( I;;当前发生交易的turtle的交易时间4 ?9 h$ f1 q; f* N: ?+ w
appraise-give+ {# S" p4 |7 {. l. p, ^, s
;;当前发生交易时给出的评价8 W1 j% W) l/ n% q
appraise-receive
1 f u' m1 ^- }: D% ~;;当前发生交易时收到的评价: ^8 U1 ~3 V6 y( v4 y
appraise-time
: c& t" k3 ^9 f;;当前发生交易时的评价时间1 Z, \! M2 @; }9 @ F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) Q& D V5 ~) }7 d9 C1 z5 q3 O
trade-times-total2 Z5 ^8 {. M9 R
;;与当前turtle的交易总次数3 m0 |# i" M) O, K! o' s4 [( p2 ]7 C
trade-money-total
! S2 X- n/ |9 b1 i8 F2 F7 T;;与当前turtle的交易总金额" {+ O( j2 ~ Q% Q1 x4 Q
local-reputation
+ }0 E8 x* D2 m3 _# D, G, _global-reputation
, j* I4 o. I4 r9 @+ Z4 v, m1 K$ Jcredibility
7 [7 Z+ @2 f5 s" T a, ^;;评价可信度,每次交易后都需要更新
% k) |- z+ ]/ c0 G0 |- o8 }% [credibility-all
: M0 \ J. r( G& m+ Q* b* `1 ];;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
( [: L2 z! l8 P6 \% a5 W( y, A( C6 p( ^. d
/ u. B( T, Q! s;;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
, P2 g8 N. Y8 M$ i# mcredibility-one
: [& ~) H. I) z9 P- 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
k g9 r$ z W g1 P9 \; l$ X. Kglobal-proportion
6 O2 v( Q: X. b% H: X+ i/ n9 P: Pcustomer1 j c# S; r" F( H0 Q/ S
customer-no4 s6 g! R. G) ]; Q8 l/ X
trust-ok
0 L' i3 {' |2 N; Rtrade-record-one-len;;trade-record-one的长度
1 F7 a" V: h, I& s]
8 M* i0 |3 l" s/ {- Y2 r9 N+ ^! J8 v/ K4 e
;;setup procedure7 g# N0 T, S1 h1 b8 m
% P% a; I) w, M( q; b# ~to setup8 H/ w, a0 I/ h: O
& i, U, a4 f1 D8 x2 s) V! \8 Wca
, ^* n# h( ?. `* q- ]) ?7 V+ |; }% c% P" N7 r+ m1 H
initialize-settings
$ ^* j. C& U( t; W: K
$ @2 W# i5 i1 lcrt people [setup-turtles]6 Z2 F/ S3 M4 D4 V7 k1 |; R
9 }! x, y& P. q6 |9 p4 mreset-timer
. X; t5 M! B9 U3 w* x3 j/ D( j. e" Q& m; }
poll-class
% k9 Z9 X3 X" W R, S$ N
* V9 O9 s) y+ y+ \+ H( N8 ]% R/ ]setup-plots
1 E6 ^( D# R5 S3 ]# ?" W2 |# ?( `2 A# G; F! Y! N# Y8 U
do-plots
$ r, Z0 {" [, Q1 W x; Wend
: a# s+ x+ t N* U+ ~
; s4 Z) Q. C( o8 J+ Rto initialize-settings
/ ^) L+ d0 c3 l& }( u$ T( r* F
1 Y, Y/ B/ [9 z4 Hset global-reputation-list []* q2 W4 J4 y1 w6 T
3 y9 g3 E; C9 g- t7 l
set credibility-list n-values people [0.5]. q4 R% J7 c/ B/ P* a4 R
' V& y# \% ?" Z5 U4 e* g8 ?6 i, Wset honest-service 0" _8 E; ?) q+ g6 o$ m
6 I% m" M. o5 O! b1 A) u/ w6 k
set unhonest-service 05 T% W4 D/ |1 |1 ^4 k8 C& ~
+ a" H$ j& w) M) v c d& P6 ^! {: h
set oscillation 0
$ {" V7 R/ c2 t8 G* g* v: x- e( ?% w; m- B3 W4 G& L( a. s, d
set rand-dynamic 05 I- g, I0 F+ l6 D: R% m" M
end5 p6 _4 _6 Z, Q+ _# ~* j
6 ?% V _* F9 J! D. r- G
to setup-turtles
6 f4 f9 O* w! R+ e( [set shape "person"- R2 ?9 U. B+ h2 d" [3 M! z0 N
setxy random-xcor random-ycor x0 l6 c* M2 C) [5 R9 d& F
set trade-record-one []
; J/ ~6 d, e \ l, Z8 t7 n% y* ?' z6 m6 E1 O- Z1 ~* c& H
set trade-record-all n-values people [(list (? + 1) 0 0)] 4 Y# C8 _; q7 |% l8 \
: a! y! h" g. k# F# i. E1 w% S$ N5 w( o
set trade-record-current []
. d( ~4 S8 W. Y* I( Q( dset credibility-receive []9 i* ^6 @4 t5 u) N) j
set local-reputation 0.5
6 N: |" h6 b! x$ U% P- iset neighbor-total 0- d4 W: ] D4 u2 @& @
set trade-times-total 0
1 s+ H- `0 f: T; u# ~ T0 \set trade-money-total 0' a: x+ y8 o5 Q" a
set customer nobody# Z2 r3 f9 n8 |! ?( ?- U6 T" Z
set credibility-all n-values people [creat-credibility]
+ _3 {( S2 Y; Dset credibility n-values people [-1]
- m/ c# r2 b; C5 c% a5 g' x1 oget-color- }) L$ k; q: A
7 }+ U3 v9 k1 Lend
. \: a$ g! Y' E5 a' X. M5 V8 |# E+ m# j. j+ S
to-report creat-credibility6 {9 U. V8 S8 n5 j" y
report n-values people [0.5]2 b) u/ j" {( U& e; S ^8 m% N) k
end
6 w( b& K( D, h6 X- O7 E) ?
' v% L# h, C# k5 rto setup-plots
8 A. N* @* @! V( `5 _; G1 S6 D; {3 M" D% a7 ^
set xmax 30
4 E- k" m# c8 X
3 m, m$ ]% x, }8 V3 jset ymax 1.0 K4 a8 p0 R- V/ p6 l
7 Y `4 N8 R3 L) s7 _, ]- I7 E9 b
clear-all-plots# z7 y1 Z: n6 N
" [/ a& f7 U( K( t- Dsetup-plot1
Y9 h8 ~4 ]$ t2 b% S) Y
`5 W% r1 F: v! V8 Hsetup-plot2( T6 d0 E* C% E) Q: k/ \
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setup-plot3
4 \* Y0 F) ~* \$ N% R5 P( Z L) ]* |) n7 nend" |4 H5 @5 }, q6 N
0 b, u9 z* K( m2 K0 @' h( ^; Y' u+ x
;;run time procedures9 ^. E% i- {: U' F% I! f
0 j: o5 r- }& h9 P/ H) Jto go3 r2 b3 J5 k. V/ ^. @# E/ S) m
& p' l2 E2 s0 U5 k! q- M
ask turtles [do-business]7 s1 P ~, T- `* b9 q5 {( ~' q* V- e
end1 Z9 [# k; \' j( Z' z4 I8 }. U' K
, b, }; ~% d. u5 d
to do-business
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5 C7 @) ` O$ ?* {( M$ p3 \) ~8 Z' `- O& z$ F
rt random 360
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fd 16 T8 }' {, [1 H2 g, _- f& |) @5 D
6 O- q) [- W$ K. S0 r/ i7 qifelse(other turtles-here != nobody)[/ G! H e: N9 ^ O
4 a t: d( ^- b- A. c4 @5 d# ^! dset customer one-of other turtles-here0 g4 b5 _# |9 i. C; f L P% h
7 y8 D* e' s" o, [5 p! n
;; set [customer] of customer myself- ~, w& ]2 [9 ^; u. j% J
% F* z9 p+ }. F/ u% Yset [trade-record-one] of self item (([who] of customer) - 1)- {3 K+ q7 a' q& B, @! {6 o
[trade-record-all]of self
( @9 X0 ~+ ~% D3 ^; t+ F& v+ O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ E- y" y0 j0 h- k7 M/ V5 e3 V! G
" ], y& _. X* R9 q( Iset [trade-record-one] of customer item (([who] of self) - 1)
! S; I" t+ Q4 H3 C+ j a[trade-record-all]of customer
4 R, Z( x! j1 z1 S4 d/ M8 A0 Z/ G' P+ R& x& o- \9 V
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]' G4 {- [5 Y7 d5 u" O( x
;;先求i对j的信任度& F0 s+ h" V' `" z* k
R4 u3 E3 W& m* _if ([trust-ok] of self)
& |1 { i9 N- v1 M3 m6 z; T;;根据i对j的信任度来决定是否与j进行交易[
; J! \! v$ ?* d3 v1 T8 eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, L5 S0 ~2 p6 b( p/ p
}9 K$ h) L0 q& n[8 E' f' Q: r! a: ~) q. h% P
# l" C% E* g& @# m& K
do-trade/ P" m5 @7 l0 ~6 r6 o% B4 ^5 Y" l
+ ~& h7 W% w+ c* @update-credibility-ijl
. V! G9 d# ^; ?* s. m
. h! a0 `4 T, O7 qupdate-credibility-list
! J* _% ~. W! s8 Q* X5 E/ B* {% M1 k0 S1 V5 N
( r- N! _2 C& z$ O; |2 v' Supdate-global-reputation-list, ~2 E( y) o1 [5 G2 t; v1 z4 C
# N: Q/ T E: a3 }poll-class
, }. B% \- a: a) U! I) U2 T+ O$ N: J
get-color
- t" t5 }' h9 V
/ y+ W0 C/ S. a1 b5 {0 X]]( s5 r' s0 S- z& |4 [8 Z
% M0 L4 }0 t3 M
;;如果所得的信任度满足条件,则进行交易
8 l# j$ C5 _4 L4 |
7 {3 G, E {$ A2 ^[: t7 o" f, \0 t, c# B5 ^9 \1 L
' v3 o, }+ b$ v: V. Y4 V
rt random 360$ W$ ]) C% R7 f. d$ C1 }) ]+ o
) M& r1 b# W5 T6 K6 W# H' Wfd 1
/ u b! V! M4 V+ d" i- s& S* x- F8 z9 K7 b) b% G4 K3 p
]/ h6 F$ w1 m/ ]% u" M7 g" ?4 a
9 `0 T; n- a0 C( [end, h2 n$ B! i/ O" p9 Y
0 D. ~, V5 t+ F# b! k3 g e, F2 i
to do-trust
2 V4 I8 t8 g6 Z" Z) cset trust-ok False" `0 N; f# R9 w! E* R" k
% |9 `8 |' |+ t% A9 E$ h' z
' y" t3 s! n D; [" s7 |let max-trade-times 0
L$ H8 l p% ]6 z) A6 W! mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! u6 U* `% U7 @' q' y" Qlet max-trade-money 0
( J, @; j3 ?( M1 `foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
A& s' q7 I9 Y4 [8 R7 r s) g7 slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 ]9 A8 f! t) j; y
! N+ d( C- n: q" ? i' b; \" a9 K$ U& \
get-global-proportion
J4 y8 \; V! `) }' X; }* vlet trust-value
" {6 N ~6 e! `; W& u7 Ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% H9 D1 t: C% y! i# C( u D/ _3 _if(trust-value > trade-trust-value)1 b; h% w; j8 W
[set trust-ok true]
+ g' M" v3 G. }6 gend9 `5 M6 j0 `7 j& I4 V( g/ n* _
2 C |" D' A V4 n' l
to get-global-proportion
3 L/ u; F+ g8 v6 u$ T) ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). M4 w Q7 \8 S. m$ A( U' C
[set global-proportion 0]" x$ T. k0 z* k2 a7 h, b! x
[let i 0# g+ U4 d# I: J
let sum-money 0" T7 f: n3 y) _' ` [
while[ i < people]7 b3 |* C) m, b6 t' ~. ^0 k
[9 ?" _0 S) V0 O; V/ e. ?8 k
if( length (item i- Z4 I4 b. Y4 H# o) {; _ J( \8 Z; m2 J
[trade-record-all] of customer) > 3 )+ Y& m7 G* w9 Q/ P# e7 G" C
[
E: t+ C$ a4 A" f" f& hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 r! i9 j" C L]
. V+ e# z) A0 w]3 C( v, y ?8 b0 A. q: i7 Q: X
let j 0' U" b. O4 y0 n; x% o7 Q# T4 w4 r
let note 0
& T! l+ m* u- x8 H+ h8 dwhile[ j < people]8 k* `1 Y1 I3 |; K: v7 o. M4 e
[: B$ B8 y6 G( D) E+ k
if( length (item i9 h5 ?2 f& @6 j7 m
[trade-record-all] of customer) > 3 )5 ?+ S# n/ J3 C" R, W7 `" H0 [
[
( w/ T' s4 T: v6 D9 Hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 q0 f8 j9 T1 }" d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 H, D/ o8 a- X0 s0 Y9 t$ }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 l$ H9 Y" w8 u2 l4 M, C
]4 `- T5 C! s. |. |' U2 R
]
( l- ?: s, H' u& S; I. @" j0 `set global-proportion note
, A* g {( {7 u2 S4 M8 l]
7 a9 K% z( C4 d+ T1 k0 w9 {# tend
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to do-trade
; f) E& j1 L4 Y! r;;这个过程实际上是给双方作出评价的过程( X) o4 Z0 Z( V: ~5 Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
S- A9 N, k' X) \0 Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( {/ ^1 ~0 ~* z' S1 x5 J3 m- cset trade-record-current lput(timer) trade-record-current8 N% Q$ F, P, ^. Y# D$ g
;;评价时间- k) B& `9 u1 D$ l( ^) P
ask myself [+ h* i7 X7 b7 v( }' M
update-local-reputation
( p( H* k @, H% P- M4 M/ w7 Aset trade-record-current lput([local-reputation] of myself) trade-record-current
1 k3 ]$ s4 |6 k]$ H/ T( u3 e+ [( C, V5 j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# v- ]* Y) i- z% T;;将此次交易的记录加入到trade-record-one中
; {4 e B7 ]2 ~/ Z# }" g+ `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ d% i" _4 E x! f$ Ylet note (item 2 trade-record-current )( s% b) a! M3 ]8 _
set trade-record-current2 j j! Z1 _3 D1 `. G4 u
(replace-item 2 trade-record-current (item 3 trade-record-current))
" F9 Z3 K# U4 f* r. g; Wset trade-record-current1 G& g% L/ }0 U5 Q
(replace-item 3 trade-record-current note). B% Q5 v8 I' W
% K' n# i* g( ]7 \8 F! T& x
6 h* s3 K/ j8 T; ]& Y% |1 fask customer [
+ S2 Q3 T! E7 X% q8 D& }! C3 y! ^update-local-reputation
Y6 M1 D& f+ r$ Q- a3 }) [9 r( J* i# yset trade-record-current( y3 ?) @+ }( h# Y& ^2 a
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & \& i( v) b: B5 Z5 q. n% A
] n( d( T+ P; n
5 \" ~& H r1 U- W1 q
, ~1 a& Y+ H- I0 V! e! a! y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 ]' O; Y! Y5 }$ x/ h' {" v" \$ v$ e+ L1 T$ \1 Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 T9 D0 W2 P9 o$ s' @: `;;将此次交易的记录加入到customer的trade-record-all中
: K+ Y& ]6 K2 J0 ^. W. m% |end
. ]+ `3 ~: I; \6 R( \: V" Y/ ~ q4 [7 n! h( B7 E$ D
to update-local-reputation
9 q4 q) h1 ?" ~! bset [trade-record-one-len] of myself length [trade-record-one] of myself
4 K" g! l' h$ v/ j
# n" k# H8 x" @
0 i7 k! f) g* M;;if [trade-record-one-len] of myself > 3 " j- {( T1 q6 m8 B. p: T+ R) g1 A
update-neighbor-total% t: N/ x+ |( Y) O( O+ V8 L
;;更新邻居节点的数目,在此进行9 |3 K4 ?2 i8 B( v$ ^
let i 3) D, {* f4 K9 i6 s h
let sum-time 0
9 I2 Y0 O* A% y3 c& ]while[i < [trade-record-one-len] of myself]
! \- g0 P* W; Y' S" k" c[
0 K1 q3 c; V( Y) ~0 J @" @+ G6 h4 V& Pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- m: x0 I2 J ]! t0 X
set i
7 Z8 c' a( w& Z2 i3 h% `( i + 1)
. C% e' I/ @: n7 S* }* H]
7 A( e: D/ b( B* }" e; O; i# Ylet j 3; b* T. g8 y. B- H$ K- l" j
let sum-money 09 _! f- j6 q3 X0 z2 [0 L, o
while[j < [trade-record-one-len] of myself]3 |% l: Y' N/ z7 H. Y8 j) R" J4 L
[
/ @7 y% ]! N& P4 z) J7 T8 z/ a9 q7 uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
- ?. f7 m! O& {* \set j
0 i: M3 a0 H2 c" G# C( j + 1)
# _3 P+ X6 T: R. L5 X3 e- s]
& I+ W W+ P$ Ulet k 3, Z6 I3 q$ s5 s! t
let power 0
( t; D) r& h' ]' k9 I; elet local 0
9 d. L1 X6 x( u- u- swhile [k <[trade-record-one-len] of myself]
" X* g9 G3 H3 S6 j; X, q[3 E1 g$ Y$ x( L# I8 D' x$ [0 A
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) & _0 G8 R4 P$ @
set k (k + 1)
; l9 l. Y) K; ~- N8 n]
. \* M( q, L* N7 Xset [local-reputation] of myself (local)8 v" W: Z: X% N
end
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to update-neighbor-total
% l9 R7 p' V# t4 Q$ F5 ^" p: A6 k* K. H Y {
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 L! ^. j% j% \$ g7 y& _9 X K# {( S+ c6 b# O, D" p B6 a
5 c$ Y" g/ N0 j, ^" S1 x
end
. O: |$ Y$ B* u, |6 S4 d" Q
8 x) z. h5 R/ z' r6 X$ |to update-credibility-ijl , |! g. R( @- J8 {3 X4 j
0 J$ `" w' \" r/ k S2 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。! e o7 s/ i* e# A! D$ D# B! x
let l 0- u7 F+ [: B' ~
while[ l < people ]
" Q& P( p1 ]* S. C;;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8 R q$ Y1 ]* L- b
[" C8 ]6 C2 V! ]$ f. `4 X4 {+ q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 v9 w5 R8 q) y( S& T, |7 V7 ~if (trade-record-one-j-l-len > 3)$ `8 f4 m1 c, m( z+ \
[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
5 j$ g, s" E) m. Q2 b" N g! D$ |$ _let i 3* o8 k6 Z: ~% z5 z
let sum-time 0
2 Y9 c: d) d9 x. s7 u" ?while[i < trade-record-one-len]7 D+ l9 m3 T! i' x9 t A4 Z
[2 l6 s0 o; i7 O6 C2 w* S" j1 H3 n7 |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); e% ^7 p' V0 @" x) b' D
set i
, E/ L3 F6 l1 o7 Y( S( i + 1)1 z2 ~0 q" `$ x5 a0 X) { C) O
]
+ o& q& r9 N! m5 K4 m7 U% s8 Xlet credibility-i-j-l 0
! k. g6 I! D3 D7 u, P$ h5 n;;i评价(j对jl的评价)
9 X& U, I; F/ I' E6 A7 j* G* Xlet j 3
5 K9 O3 v( ~: a* g! }( L) X. {let k 4
8 F/ k r d2 B4 ^5 vwhile[j < trade-record-one-len]
& ?+ @ N) {6 [4 e. C) B- l1 d[- n) o& i+ t) Q/ \. V$ w R$ v
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0 j2 |( ~3 T& J5 n
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) p0 _8 _5 a2 i. N
set j
0 k) _$ g1 D& a) g' J& K' x( j + 1)2 _2 }2 K6 @$ T0 P! h* @
]
8 b$ p! u0 T! }6 k# o. Kset [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 ))
+ g# {, T3 p2 F4 V" T5 g- r3 h" d, u" D' U7 Q9 R) f
1 M4 ` q) `5 b* a7 mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ F! e6 |( R% |# T;;及时更新i对l的评价质量的评价/ X% V0 v+ Q o# X( d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, _% y( T) e# v% f! bset l (l + 1)' S9 B% n$ v6 t; v9 d
]* D0 f* _7 A3 ~- K
end4 B3 ?' {- }* t( o% t
! M1 e3 Q' t( D& y
to update-credibility-list; X) I+ ^' [3 |9 l, G5 x3 d% d
let i 0) G; }( x v* U
while[i < people]
u3 W" X3 t& j( y* r[
1 @; P) e& q R6 j8 Zlet j 0
$ }4 N( o, p- clet note 05 |) {1 H0 z: Z. D2 k- L
let k 0) A6 Q3 w6 p! Z) f$ I! j: i/ |
;;计作出过评价的邻居节点的数目7 w! L0 A8 J* b1 n
while[j < people]$ ]0 o; z! g. k. ^/ N2 F( e: C- J! N
[7 Z8 R' r: k J
if (item j( [credibility] of turtle (i + 1)) != -1) f5 V2 E8 P& b: }/ o8 Y
;;判断是否给本turtle的评价质量做出过评价的节点) }! V8 D! \% L" ~& {1 q" i
[set note (note + item j ([credibility]of turtle (i + 1)))8 L$ }% G0 b6 \ E. G7 N
;;*(exp (-(people - 2)))/(people - 2))]1 j" ] E# E- i% N* a' @/ e/ ]7 y
set k (k + 1)
2 v6 g2 ]% G4 e/ b' S7 e- m]% E+ M: A; j1 E8 V: G) j) s
set j (j + 1)
( I2 `' a: c8 `7 x" q( C6 X]" X1 g) D9 x5 z; u
set note (note *(exp (- (1 / k)))/ k)
3 _- A9 h$ e0 y7 p& v( _set credibility-list (replace-item i credibility-list note)
# l' d' u( A8 g/ V* A! x8 U8 w2 T" vset i (i + 1)
* q; C9 o1 @5 n; F2 k# Y3 s]6 }1 G$ Q0 a# F! |6 G3 p
end, K4 X; c" B9 T. z2 m* M, y( L
+ P7 K9 c2 f# W6 z
to update-global-reputation-list1 m( z6 w( Q/ X4 H
let j 0
6 h8 p% K0 a2 O& {. y, v; r6 Gwhile[j < people]3 Z( T: I4 F& \( |2 d0 P- H7 C% y5 G
[+ J' `; l9 i- p- A0 ?+ Y
let new 01 Q- n: \3 x; {& _1 P4 U# n4 Q5 j
;;暂存新的一个全局声誉* e3 {0 f; x) T2 X( G
let i 0; ~' j* W Q; F! u- L
let sum-money 0
4 F, T: ~+ n. x" ^let credibility-money 0# o. q1 w2 y$ {- H, a2 k- @
while [i < people]
5 I. @8 A9 {) a! a7 f[# T4 P4 Q# g {5 P; \3 b6 e) J# C
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& g5 j6 y7 i8 K$ E; s/ B
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- z& t: f" o4 v% C3 w$ r1 T
set i (i + 1)
0 u. `6 @9 [' S]: ^2 A! e. A6 E9 @; L7 P! `
let k 0
/ ?4 Q ? r) o/ ~6 F, t6 olet new1 07 d! o2 y/ j1 A$ O3 D# C
while [k < people]4 ?& s( X3 M) V# L$ j% O
[
& M ?3 N. S0 w. l6 G0 [, Y4 ^set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
. j* ~" C8 `- }. }set k (k + 1)
" N! q* ^, a. l5 K% C1 ~* x]
; [! I6 D7 E# W, Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 z; y, j& d' xset global-reputation-list (replace-item j global-reputation-list new)4 c% h' X1 x9 O+ z/ ?/ b
set j (j + 1)6 D( e0 U# }& m$ m% x9 d
]
; }" S/ M% X: I9 Y- lend
& ]6 l& S* k6 s7 Y! k$ h7 A' `: O6 G" i2 R
& W$ ]& b2 L3 y% u
% P/ S/ _$ L& K) D$ ~9 o6 {0 M2 ito get-color
1 [" [3 S& M7 g' d# j. s
* y. d' w, R' H/ i8 b" x" \) _set color blue. N7 \& G" }2 b( l
end
5 z- x, j5 |& p3 M3 C# g8 T) _) k; t5 u. G# I7 D) A
to poll-class
* M3 q v, ~. b* S! mend M; \1 M: X7 l9 M* @8 ^. d- M
) {, B: W$ j7 W; l: b
to setup-plot1
, [" x p1 C8 K4 O; v
9 [- h* D" v! N9 P' e, @set-current-plot "Trends-of-Local-reputation"4 r7 }( W- n& v$ f# i# w, h+ i
3 e- n" n E4 B1 h: y+ f: ~set-plot-x-range 0 xmax
' {' t% @. `) u
4 M7 k+ o: |4 c! p, Xset-plot-y-range 0.0 ymax
6 _0 A, }& `; u6 c# j W& {% iend
) x+ L" ]4 O5 H" b% J" m6 |- v- \& K; q" } R5 d
to setup-plot2 b; F7 N @2 S" p
% y" @. G/ z$ Iset-current-plot "Trends-of-global-reputation"
7 b* F0 B: {3 ^1 @4 f, j/ x" c. @8 i0 t$ A, Q- u
set-plot-x-range 0 xmax
6 a3 ?) u5 s1 c- S8 k; u6 D: J& r, D6 M0 E; F6 o( `
set-plot-y-range 0.0 ymax
, W6 }0 N7 B$ z6 c" Vend- d' e/ \" |9 c& T
# W' S" _/ ]$ I5 {& j8 K7 Tto setup-plot38 b% [2 }1 V# X2 |
. h6 H) ^* ? F0 p* `
set-current-plot "Trends-of-credibility"
- d1 _2 G8 F9 t# k* V. J, Z
( _. K. ^3 a: K7 {set-plot-x-range 0 xmax/ |) {5 C `0 ^6 @; x
, y, [* T/ E9 a5 S/ `
set-plot-y-range 0.0 ymax
- z) R+ @; u! [end) {/ x+ M6 x2 M0 A/ K# g; ~
9 W7 V) C ?- g" Y: H$ m; M
to do-plots- Z* \* C/ h3 H8 l
set-current-plot "Trends-of-Local-reputation"
4 Z2 L* K9 H& E$ Tset-current-plot-pen "Honest service"
9 C9 y# s) X wend/ p) u" D8 J2 V7 j' g
& r$ }( }- w3 Z& g
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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