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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" _$ r0 o5 _3 t, L1 ?
globals[
1 _$ l6 \% X5 S" L! x6 N+ K: S S! kxmax" h$ R5 v& e4 }5 M
ymax
1 t4 B8 U- f: U- D' u2 x$ j. dglobal-reputation-list
$ g, v( p" F0 p4 Y; h7 I: y0 _6 z
;;每一个turtle的全局声誉都存在此LIST中 G7 }9 P7 M$ m M& z* e
credibility-list6 R8 L* |) O$ K0 \. |
;;每一个turtle的评价可信度 K5 z4 m) f: f8 p/ G# d
honest-service
+ a" w7 C; T7 t9 Q8 }. z$ Kunhonest-service. ^( a& i* a$ V1 p( `
oscillation. X! S0 ^' o( ^+ o# p( D" j3 v5 F' X
rand-dynamic" j2 x; ^8 \! r0 @& s( D
]
9 A' {0 e' C3 v+ u/ x' N# s2 L3 d6 C6 c0 ~6 F; G9 H
turtles-own[6 y2 W q9 ~3 |$ f3 `
trade-record-all: g; h5 ]% v, y' c2 O8 M. k( J- I
;;a list of lists,由trade-record-one组成
- M" U! }, c7 _6 @; Q+ t" Xtrade-record-one. d1 z: ]- G! F4 r
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ ?5 Q( L y6 A, X* B" q8 o* L
" O6 O W% k8 O2 B$ M( e6 W;;[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]]
- ^# z0 _- X/ t3 t6 \; c% T& gtrade-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]
% B Z0 S. F6 S/ u' ?- X. 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 q9 O4 P' F& L8 X5 r+ Z
neighbor-total
1 x/ _6 N; v# o% v;;记录该turtle的邻居节点的数目
9 M/ k! y$ a8 Y: F5 _trade-time# O# v I# h, _. o
;;当前发生交易的turtle的交易时间
1 ~" r$ [6 p/ tappraise-give* ^4 k6 O. x+ u/ `# V* l* E. W0 Y0 C6 C
;;当前发生交易时给出的评价
! k' g9 @; K& ~' Kappraise-receive
8 p+ G* r& ?" t1 l;;当前发生交易时收到的评价
4 b' M% A8 D7 r I2 z; {appraise-time+ [* j B2 R6 b" T/ A( n9 W
;;当前发生交易时的评价时间
+ b ?- m; @8 G/ _$ i& K/ Ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉* V' |0 F3 H7 l" J7 w: Z _5 J
trade-times-total
) m: _$ Q, z' c% s) ?; W;;与当前turtle的交易总次数( T, N. [& o! r" I* K% N7 z
trade-money-total/ }1 r: T8 n: _+ i. L8 X2 m
;;与当前turtle的交易总金额
7 @1 w& r" {, z) ^/ q, ?% q: vlocal-reputation
5 ?3 [" @& R# K+ Kglobal-reputation
* ?& t4 W- R. V2 ccredibility a ]3 E9 [. x
;;评价可信度,每次交易后都需要更新 Z! J; y" `4 K
credibility-all
& ~- \% a1 G. k% E( j" y1 F; s7 o;;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
' Y4 r* R: m, S& H
, v' @0 k6 J# ?# h7 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) L k: }6 j) C9 z
credibility-one
5 d; }7 H6 P2 Y. _9 j+ q' t;;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' {( a4 }! P& N) Q Z
global-proportion, l" G5 k s% o
customer1 [8 {+ k0 R- n8 L% ]. q) V
customer-no7 p/ V' i* w x- P) Q u& J \
trust-ok
( a( k% k+ L0 Z! Y: g Jtrade-record-one-len;;trade-record-one的长度4 i6 O. e2 D8 V3 k8 G# L# c: S$ t3 ~8 m0 \
]# @3 V! y) |; K$ S; F0 L
; X. p+ J4 l3 ];;setup procedure/ y% j/ J2 E' P: x! b& t6 v3 E
: e2 a; ^7 x( S; M' z+ N3 A
to setup- D0 b- r% X2 { A
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ca" V* Y/ Q ^) D& I' _
, h; b3 Y' V) ^ b7 Minitialize-settings/ {7 D7 t, I8 i$ K% b- y& ]
$ m- B0 c: {$ K8 O: I$ q# U
crt people [setup-turtles]
) U1 r& Z4 ~% d2 f! _+ J t1 I, |0 u% I1 F8 I; g
reset-timer
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$ U) [1 M" c- ~2 n/ z% r* spoll-class, s/ @5 m6 _5 ?' D/ [$ u( A, @
% @% x% Q- @% R! y. l' n$ t8 Vsetup-plots, D4 a$ m- ]5 W X) z
( {# ~) Q. r9 h/ f0 Jdo-plots3 S1 g) i% o; k8 X) X: Q' Z
end) v- N! b3 s5 X2 O" U
* ^& _- o) m4 k3 s4 b$ ~
to initialize-settings
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5 }, d& E. C7 U- Bset global-reputation-list []
6 o# @3 o9 z9 m7 p; U6 S6 |3 E* j
set credibility-list n-values people [0.5]
5 o }' r4 |& ^& b# ? r$ r* L0 D# j7 `8 V- \. E% H* c" F
set honest-service 0
4 O6 w6 {6 y$ K5 H: A- H! b4 H) ^& D7 m5 i
set unhonest-service 0
( c0 d) O4 U2 U7 J+ E: ]% E
C6 t: u, k. _% wset oscillation 0
6 _# r7 z _) I I$ W
/ j8 O, G5 V1 A0 r: x) _set rand-dynamic 0
4 g9 Z$ `3 s1 F6 @4 L8 d nend S1 K+ z f# X" v2 Y7 x# w
% [- Z$ U# N3 Z; [0 x% N% o0 Y7 p
to setup-turtles
! w2 k# ^% {7 K% C% a0 h! u( r' ~set shape "person"; \' E% I7 Y1 `3 D- f
setxy random-xcor random-ycor
/ j6 F- a9 \: `: ~4 hset trade-record-one []1 z. L' F6 ]0 f
7 K2 J" K2 ~$ E/ {
set trade-record-all n-values people [(list (? + 1) 0 0)]
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' N& Q0 l& r4 a+ X; j6 d$ Sset trade-record-current []
( U. L; S( V1 {- `* Gset credibility-receive []+ [+ a( i1 z4 P" ]
set local-reputation 0.50 y3 J4 }% p1 G4 O
set neighbor-total 02 d7 R& l3 X! c+ n) ]- z
set trade-times-total 0
* ^! _% n* {3 Wset trade-money-total 0
( Y6 s3 v5 ]$ l. q% z; e" @# W; fset customer nobody2 o3 o; x, N- f) `! M3 I1 R
set credibility-all n-values people [creat-credibility]4 ?) z8 c5 w2 c+ ]# q; n! e) X! p
set credibility n-values people [-1]" x+ \- h$ `" Y* t8 f
get-color5 a' Y' g7 `9 ?+ [
) k( z, E) w( ~ a9 l
end
+ r& I" E, X) O8 H/ d0 |" r
2 O" j2 h( m$ N1 wto-report creat-credibility
5 K3 T) _ g, [0 p: ?0 wreport n-values people [0.5]7 m# {) P s; D1 T
end
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to setup-plots
% `- B. O7 N! s1 ~! J! @8 u' X. s4 E1 H3 O: T7 i
set xmax 304 \2 `5 \5 A" v& i* U' k( m! w
( v0 J6 d; Y! k. O+ z# n
set ymax 1.0
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clear-all-plots4 R. _8 I$ Z" W# O7 V- x" X2 `* T6 N
0 [) y! |# U/ ksetup-plot1
! I0 T8 r$ F" _' [4 e, Z7 Y2 S' y; S1 P- y5 F
setup-plot2
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setup-plot3
" K Y0 @8 s0 ^' w2 n: I- Qend" Y' g9 H" u. w- D, _
2 d$ c, o: f4 A& X2 g! k
;;run time procedures& w! X4 O! t, X
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to go
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ask turtles [do-business]7 }5 X% v C% C4 B( U- p+ R) ^. j
end, B$ e! r+ m3 Z* c+ t/ c" P& G
- E1 c. M/ F0 n/ u5 X& t+ N" p8 O5 zto do-business
1 K$ @. P$ z: P- Z7 l% i4 J, g
/ `% m+ K+ i4 X7 [0 O% w" f
5 S) J8 b0 @$ Y! G: a. L4 Q, srt random 360
, u$ u" J0 i- u" P. s+ z& l% e+ u4 [, G7 m. |5 n4 `
fd 1
1 t- c2 y7 E! M1 a x( D4 `/ V/ ?$ \% Y) E$ z3 O
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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' M C" _5 U$ k. |' C) p' s;; set [customer] of customer myself, K, G- d: e, A4 A! e
; P# A" X) v. C: _set [trade-record-one] of self item (([who] of customer) - 1)
& K5 V4 B9 e1 M8 C) n) v[trade-record-all]of self
2 K6 ?" V5 X4 s;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, |6 S# N4 p& U1 x4 ~, I4 \, {1 L: B2 a
set [trade-record-one] of customer item (([who] of self) - 1)4 n; A3 n; F2 n/ ]+ N, ^ @6 L
[trade-record-all]of customer* x' H# L* x; F. p9 D! J& [: D
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set [trade-record-one-len] of self length [trade-record-one] of self: S- `3 N$ H& n! ^# ]
- s+ k8 u# ?, p/ ?set trade-record-current( list (timer) (random money-upper-limit))
. B+ x9 N! k( ]% S8 F: H. o0 G! D! _
. i7 f# [8 @, M) [8 \9 T3 `ask self [do-trust]2 N @5 c0 `* e5 z i3 P
;;先求i对j的信任度
0 Y7 G$ z& Z! @$ x
& |! k2 w4 l0 W1 p: {2 R4 F3 {$ hif ([trust-ok] of self)* O5 }( l. C% ?3 d& R
;;根据i对j的信任度来决定是否与j进行交易[' U0 A) Z4 O0 R+ h) @ ?" o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! k7 D) Q6 e8 g/ d
( A% j& p" p5 l1 r9 Q- u[! _5 y3 U. }$ _, d0 N) u
& I: r2 G( \( E" Ido-trade
, ]- z; X2 J" D& N5 ~: ]: | L9 W
) a6 z4 T# u3 Z! Lupdate-credibility-ijl) }: T$ l, \# d0 {2 ^% ]
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update-credibility-list* x, }3 M9 ~$ v$ D7 i
0 m' W. M3 b) \: M
# i) q3 N1 ]' I8 C2 D5 ] R
update-global-reputation-list# k! ?" s7 Y; h! W8 ?) `* c2 b
$ A- C* V1 ~3 H* e, ]0 Z
poll-class
1 D% x3 I) E. p& n3 c
/ S- D" {$ Q* G) w. C, Oget-color
$ ?4 L3 d7 [; j- z; n' c X8 Z# z/ M1 t& f+ Q' b- S! i0 |9 c% E
]]" C' f \5 o, Y
) \$ h& O& S( n9 P7 }
;;如果所得的信任度满足条件,则进行交易' T$ v4 y. n' N9 y" f" y, p# u# d
. A; D7 H6 V5 e, `[
) m4 V$ E2 I3 P$ a0 d1 W" n/ {
8 k0 m; j1 ?# a6 h' r1 F9 b" Rrt random 360* r# V9 ~+ @0 I
% ]2 _6 G' r( g7 q# I
fd 1/ c, F2 V$ o6 K6 [7 B
/ o8 S. [6 P& O& d& r$ d# G3 Y
]
; r4 e; f1 S. |6 z+ k$ C8 l/ g
' ?4 K1 D4 O) X. @5 N# \2 m& R R. Aend- {( x9 u# X7 |
) U0 _ K. u- y/ ]# @ h
to do-trust
7 a" Z" {6 T1 O. S) M0 d5 Yset trust-ok False
7 D0 H `( e/ _+ ^% Q, s5 _) W" _+ A# ^1 E
& e; t1 ^- ^! U6 Ulet max-trade-times 0
0 c$ l2 ^ h( h7 r- _$ @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 b' @4 Y9 v3 V
let max-trade-money 0" }+ R' \$ x, u) }6 a% f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 w. }4 q9 s) Z7 y9 n
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
H2 V. x- w p2 m: _ Q$ z0 H+ W1 c: W
9 Z4 g, f: ~* Y4 g2 M6 P: z
get-global-proportion1 a. S) {8 ~2 j) E
let trust-value
* u1 O* `0 T: J7 W- m' Flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
3 d& P6 f3 U) C8 H* vif(trust-value > trade-trust-value)
* D+ m0 P8 \/ t% `! k9 ^) M[set trust-ok true]4 U9 `/ D8 b" J j* S
end
; m; {/ T% N8 y0 S* v& e- M; }; e, C' ~
to get-global-proportion
2 Y2 q7 M# H* h3 k! i1 Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); }! c. V" |" c
[set global-proportion 0]
) z \ M& S5 x4 V+ q9 q" M[let i 0
- o' {8 E# K2 Z* R5 w9 |let sum-money 05 x. `" X* i7 J& ]1 Q- O( t
while[ i < people]- {( X% `: L# w, T+ c7 E: O
[7 Y- M" k. }' A! `/ t7 m
if( length (item i
! r6 Z; P8 o. W- Z2 [9 @[trade-record-all] of customer) > 3 )- h$ a. _" T+ B0 Y2 y
[8 X, B @) h6 R8 i4 ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 X; l" z! Q; r/ f]
m3 ]8 [! Z `/ l! []
# R- O8 u9 K7 w% m) C+ Alet j 0
& K9 v6 T. L. Zlet note 0
1 A# b8 `3 H" T, v( |while[ j < people]" v1 S: y- E- Z3 I( t4 z0 l0 ^
[
' S8 I- j$ o2 ]0 H- z2 p. I+ G3 fif( length (item i# @. q" X. [( Z& [0 q- J" \. I
[trade-record-all] of customer) > 3 )1 X' q6 _ S' r% J
[
) z- w: X' ~/ r& |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 H. j& h8 W* k2 x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# u4 D2 S5 ]8 u3 k5 Z3 T[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ Y' E; v7 P; o% Q5 y]( Z" g0 Q0 W0 v& V% f9 h
] `( d* h V k; D }# R
set global-proportion note1 @/ g" G, F: J8 R: z
]8 h8 Y5 \$ \/ i" K
end% k; r- d5 ~% E6 o( l( ` f
+ M% }$ T( L( X7 K4 hto do-trade
7 O* }, a# C& ~4 b& Q" w;;这个过程实际上是给双方作出评价的过程
+ e( v( G7 Y3 q z4 Q8 L6 }" Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, g0 ]2 @/ L4 t9 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ ^8 G9 K( p5 F* ^' t' E0 ]
set trade-record-current lput(timer) trade-record-current D* ]1 v, @5 l( c9 }1 K) R
;;评价时间0 U$ P9 S( }6 j4 n
ask myself [
" C- q* A: A. w: c$ `update-local-reputation% ^; T" @9 h- s7 W$ r8 z) f
set trade-record-current lput([local-reputation] of myself) trade-record-current
. o. c/ j5 `7 X]: v! @" J( }4 x9 c+ N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% C$ t, `! |% s \% t/ K" i( P
;;将此次交易的记录加入到trade-record-one中
+ J; S+ J( M- v6 G+ [" k" \# aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 J' K5 k* N V |! s2 K
let note (item 2 trade-record-current )
8 c9 }# h4 t6 A6 B. _set trade-record-current
2 O. M; ^4 l0 N(replace-item 2 trade-record-current (item 3 trade-record-current))
; p! g# A3 B2 {1 }* V( qset trade-record-current
; a- w- e* v0 p9 c6 L6 ?(replace-item 3 trade-record-current note)
1 ?# }! o6 z7 x+ M9 \& s9 C: D3 h) A K! C
8 j; L9 N/ z# s! P9 H
ask customer [
- ^6 I; k" `; n, fupdate-local-reputation& U, ^1 V( u a% x3 S7 a
set trade-record-current
7 M& V$ L# L) n- V: m+ ~+ V9 `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # j+ o2 |( z' S/ @) O) ?4 K
]
$ b j) z' c, |
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6 r; l; \& X# ?' |set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. E* k$ p2 Q: c, B, G1 E+ ]' C
0 o6 G) |2 J! N: U0 i) }set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! o" Z3 R7 D7 W- G
;;将此次交易的记录加入到customer的trade-record-all中1 o. q# N# U# Z4 N
end
7 v+ E ?4 s* ?$ u0 }( `; o: p. h- b8 V* G3 X& Z5 h( k
to update-local-reputation! O5 ^5 @# U5 E
set [trade-record-one-len] of myself length [trade-record-one] of myself9 Z; `+ F4 o. Z3 | A
* w; Y) Z' |# B+ n: i& K
% j8 e" y8 m& Q$ L# |! S5 C% u;;if [trade-record-one-len] of myself > 3 ) _! G) x3 ?. W* ^
update-neighbor-total
, u; |$ e( i) H" z;;更新邻居节点的数目,在此进行
# @8 ]/ s) a3 }' V xlet i 3
# p, M: g* v) C% f. llet sum-time 05 J! {( T: X+ D* V0 W6 y
while[i < [trade-record-one-len] of myself]% I# R$ Y- B+ N) ~. R5 j0 }
[
$ `" t0 Y# D5 e4 P* O5 R/ eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% d# }6 X& I; E; _7 h. lset i; D- J* c8 O- y: b3 y) S
( i + 1)9 i# l' p5 X8 T, ?2 b
]
# b- a! P. F( t! T1 j4 I# Qlet j 3
$ H1 S6 _! o' w3 N/ Alet sum-money 0
# R0 f: p% e( Q$ I7 D- O& p9 kwhile[j < [trade-record-one-len] of myself]
- H; a$ G6 Y! r[
% E4 x* n( K8 E* vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)4 `# A: s& v) C5 _$ ?
set j* d0 N1 i- U% K9 Q* @0 i5 [
( j + 1)- z1 {: o$ O7 B# \
]: y$ Y# F6 y8 J
let k 3
5 l$ ~# w. z! y9 f3 K) q# a3 J# ?let power 0 e. v( n4 h4 x" s }3 l/ n
let local 0- @5 D7 w; Z9 L H* h- @) D( q9 Q
while [k <[trade-record-one-len] of myself]$ @3 R$ N5 r+ u# c* O
[# i( R8 c4 c; p8 d. Y
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)
3 x) p8 p# f4 n2 mset k (k + 1). [, T' \" H( `- Q. k. L: i" y2 G2 F
]8 U+ h3 v/ i4 g, Y w$ C# \. }' F: Q
set [local-reputation] of myself (local)9 |" {( y2 L+ n1 q5 ?
end
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to update-neighbor-total! N) c2 T5 W& x8 A$ \7 w R
- W1 k r8 g# O: F, Y( z p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( H1 B. [! h- \0 A0 o- i
* ]! P+ \( t! f3 B: c& T
; T2 ?9 M; B. Q7 j+ z: h& j7 K% eend+ m& e m' F! T, w* k
7 M; R$ A; N8 t$ G& `1 `+ c; ?" ^to update-credibility-ijl
7 t$ i& l5 p* H2 K8 @9 N9 L9 b' Z6 Y! @9 O: S/ x& w% k$ ], k
;;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 G: O# N6 J9 K/ w& R( w: R- llet l 0
a9 V7 @0 R$ }3 Kwhile[ l < people ]
8 G7 q6 ~5 ?/ e m. D+ v K/ r;;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( L" p1 f8 _( J9 |! ]% A
[& l. U2 o: ^# a8 ]% F/ K* g* @3 X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 X& x# L: w7 [ \, Q: d' Q+ j
if (trade-record-one-j-l-len > 3)
. N P% {8 c& a7 G( j" P- \6 t[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
, C0 i. A5 c) U3 N$ R olet i 3
9 H6 \, s; }) h. a7 ^let sum-time 08 {9 [% \% E- Y) Y+ W4 K1 g% a/ ^2 t7 t
while[i < trade-record-one-len]& K+ E$ [, d# q' I$ \9 V
[& G2 A! E! Q k9 b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" X6 N" Y/ d- U0 C% S4 ?5 q
set i0 P- k+ K [3 B
( i + 1)2 g4 g- p7 P5 _1 \0 U: g! q2 B) { n
]
\& y$ f3 D1 v O' @let credibility-i-j-l 0# k" ~ l+ `8 v" K8 P
;;i评价(j对jl的评价)0 X% m7 g' H7 w( v m
let j 32 v* y0 P; n# m4 I6 G
let k 4
" R1 Q# Z4 q! E( \( `while[j < trade-record-one-len]
; }/ p3 G8 Q! R, j[/ c; ~1 h7 Z. f x
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
3 t, L( `/ u) Nset 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)8 q8 C4 V6 v" l5 O
set j
6 t# R* ]2 N% q) q( j + 1)1 _5 q$ x2 _4 P+ \+ D5 @
]
- L* F7 `; u& |& t: q# m5 d8 ^) n& ^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 ))# Y+ x# A% O5 h s8 t- J+ M6 p
4 A; Z; a! o8 {3 Z3 @! \ x1 i6 a
3 _& x! L+ O* xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 c7 @+ [% Q( a7 J4 p
;;及时更新i对l的评价质量的评价
/ Z C+ ^% W- e, Q* H) Vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& k# q3 t, G+ A, O- d7 J6 l
set l (l + 1)
6 G6 c; g$ |$ Z3 k! @3 d]% a+ T' J; J5 r1 L( ^5 a6 w
end- r% u6 n' u, [$ B; |& e
' o3 j' g1 k4 O+ I+ \! i' s+ qto update-credibility-list! K3 }1 t: c" L% E* G& @& g
let i 0
( G- s5 t4 U5 Ewhile[i < people]
& \3 @4 M5 O4 t" Q! k[1 j& Q1 }; d2 _1 L- \
let j 0/ H- Y/ O" n8 F* L' v. G( h) H
let note 0
! c, U; U9 `( G2 L1 u7 _8 Plet k 0
* s$ N/ {* c7 }4 {6 n( h;;计作出过评价的邻居节点的数目$ c1 u- [& I. x$ t
while[j < people]
7 v$ o3 j% y8 o' ^' H[! i' Y3 D8 I3 Q2 ^* e
if (item j( [credibility] of turtle (i + 1)) != -1)! Y/ `+ z9 {" l% P
;;判断是否给本turtle的评价质量做出过评价的节点
6 T/ R, x8 q! G6 g" x p$ \[set note (note + item j ([credibility]of turtle (i + 1)))$ `, n2 @; I( l. j- y* m, }
;;*(exp (-(people - 2)))/(people - 2))]- }' g4 q8 m# S" P' F
set k (k + 1)
, H& o2 ^, z9 L) ?9 a]
5 `4 l) J' O* V& Yset j (j + 1)3 n3 V: L- x5 y0 ^
]4 h+ y u8 e( s) l
set note (note *(exp (- (1 / k)))/ k), ~. |) e U6 e* z8 G5 ]
set credibility-list (replace-item i credibility-list note)
7 S- I4 C% |) z1 n$ Oset i (i + 1)" V) O; N9 ]( x- g( l: H
]+ t" `4 \( k, Y: N1 z3 c3 G
end/ C* x; H# L* r& R3 }
: Z. ^6 ?7 C; M" nto update-global-reputation-list. F' Q/ S& O' d7 g. [, z
let j 03 z6 i5 W }1 X& l; T
while[j < people]0 @1 c7 }& b1 z! }
[% I! F- k. D/ S
let new 0
7 ^& @5 T( J/ o/ Y, h' R4 w;;暂存新的一个全局声誉
' w$ X) Z! W( i! C1 L6 O* _let i 0
2 }8 d# j- b7 Y6 ]+ C1 y/ {let sum-money 0' Y; L+ E5 T+ E- K s' _
let credibility-money 0: g& ^ W$ f! k
while [i < people]
- M$ }2 L7 o; V p0 X1 w[
$ ?+ {1 T& M8 H# Q aset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; l% P; v5 Y% U! `1 }set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& _5 n2 C: E$ f. e2 ]set i (i + 1)
$ V/ ~" p5 j- M4 f]% b" B& H S* n5 z2 c
let k 0
$ j8 }4 w) w3 G7 Tlet new1 0 Q3 j$ d& }9 V; v& }3 n: x0 Y/ D+ M
while [k < people], @9 X: `' d1 `* j6 P7 P, L
[
5 J4 W' Q- a* D/ p. U. Vset 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)2 U3 l. u; M! j( ^
set k (k + 1)) y w, r" d U, @% p b S" c
]
o9 K! B: z& c6 K' v* vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- G; I" O5 `* S2 ^- {5 Tset global-reputation-list (replace-item j global-reputation-list new)
# Y" @! l( ~' t% f7 i6 Zset j (j + 1)
0 l' ~) L: \$ Z# V1 i, d4 \]) ^( H0 _' d6 y) }, [
end
+ v, w( H0 B6 |
$ U9 k) ^; T s- B/ W
+ M3 ? n n$ [8 \1 ?# D2 q
8 }/ Q) w X# u% O. y) w6 Uto get-color! s8 d6 R6 c6 }5 P3 o
' s: l: x" \8 V( a
set color blue0 P. ~9 O {8 @4 R' z* k# ^
end
* I8 F5 I' M* v% R% a) E) t5 i
5 U* g0 \+ L( Z! yto poll-class
% _6 `6 H8 J: A4 B! r: c5 }end: T X/ B3 F& v8 n0 ]
7 A$ g5 k1 m1 C& e/ w1 Y7 q/ N5 \to setup-plot1
+ H5 Z5 p6 n, ` T# K) k+ s& S' f( Y) c6 E
set-current-plot "Trends-of-Local-reputation"
9 v; O7 S5 g" ^: b$ f: m" _5 S: s6 U1 R8 Y2 f
set-plot-x-range 0 xmax
- Y/ o; m; v4 I' ~( `* h0 I
! @2 b0 t5 c$ U$ z- [. F2 Y/ Bset-plot-y-range 0.0 ymax9 P- m# [7 Y6 `& w
end+ T; \% y5 t$ { L3 { k
2 p, k/ Y$ w( s% g" p
to setup-plot2- z- `3 X: f L
/ P: M/ d3 m4 r- l
set-current-plot "Trends-of-global-reputation"
9 @0 Q' `! H4 N$ \/ j) g% B& R$ A* W0 I$ U }2 k7 F$ B# s
set-plot-x-range 0 xmax
) g- x: \8 U5 I9 p/ G( u; Y( M! J
( n6 _( _9 S& i& U6 x) R+ _ b8 Zset-plot-y-range 0.0 ymax
* M$ Q1 V! m- Jend, Z& ], f }+ h
8 ]' S& m9 z4 L$ U8 [( j" k: Mto setup-plot3# W; p+ S+ Y! o6 o0 X
# c* @7 {% t: Y+ z! @ @( V
set-current-plot "Trends-of-credibility"0 R! n! E' h1 v
5 E0 i! z0 E( f9 E1 Tset-plot-x-range 0 xmax
: `( i+ x" W, N& R) W
" N5 q& l% {, m# ?; qset-plot-y-range 0.0 ymax& m" s. X" b, p$ w" z
end& O5 n! ^3 ]" s0 h6 }7 N. X* I+ V* \
7 C5 w3 P( y1 { R( t, ~to do-plots/ R3 D7 [$ o& Q
set-current-plot "Trends-of-Local-reputation"( X/ F% N( H% E; I" W1 i
set-current-plot-pen "Honest service"
6 {% o. b1 R6 B& v3 r, hend4 `! T4 a" [. s3 l- R
5 k" T, ~' s& d( _6 Z2 z# F[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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