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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3 @2 A& @3 O5 p) o8 b7 z! M1 X9 B
globals[. U0 P& c$ G+ A# C7 W
xmax/ [ `! e/ r, ]7 H& | w) j
ymax
; M- b3 K }0 _# L8 r. vglobal-reputation-list
3 n& ~! ?. [& Y& {; X; k7 e; p8 H' b8 o' X% D( n( g) k1 G
;;每一个turtle的全局声誉都存在此LIST中8 |' e& l- ~2 y1 E( C; H
credibility-list
. v6 h- L9 [% S& e9 o2 Y0 y;;每一个turtle的评价可信度( i0 ?& z: X, |
honest-service
1 V, Y4 H! |& K! I- a5 S- Aunhonest-service. x+ E) F, Z/ a: P7 e
oscillation
- ^& y; J1 H0 j& {+ Vrand-dynamic0 ^, S3 Q8 ?) x1 M3 Q
]+ w. [# s/ @4 ?. h: E
" I2 {9 M6 l8 J$ L& r
turtles-own[
) o4 }$ N2 D" g; u y; p! Btrade-record-all
+ a& d5 A$ z& F;;a list of lists,由trade-record-one组成2 e0 a/ Z1 r) d+ n
trade-record-one
/ L; E& k; X% A% Y2 Z* m3 w3 e { 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
8 M: `# W) V4 y2 e/ E/ M% K9 s2 L# j. k; s
;;[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]]
5 _# B" L4 \2 D1 ^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]1 _+ y) K) v$ T! \ ^. Q* c
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! k7 S' L$ ~( {2 Z
neighbor-total
9 [5 X5 Y' v. z5 \5 n* _;;记录该turtle的邻居节点的数目# P* o. m F$ O# Q
trade-time
! c( V6 n) i1 s2 {8 W) S8 D- g;;当前发生交易的turtle的交易时间
6 w5 r+ j/ ?- H6 @$ Cappraise-give
# F3 \/ @+ g# n9 n2 o) ?;;当前发生交易时给出的评价0 n9 U) {& b+ H
appraise-receive Y) {7 p+ m' P p" w3 C
;;当前发生交易时收到的评价
$ C& v+ g: \$ iappraise-time1 I. W7 F4 W: X& ]3 d2 G
;;当前发生交易时的评价时间6 m% V+ D* {9 U- N& ], p1 ?: O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 x2 m& w- B7 Q0 Q
trade-times-total
3 ?5 f' T1 C0 q% q;;与当前turtle的交易总次数+ t; {5 `" m5 B, \7 s( z( ^ R
trade-money-total- r7 b9 ~* ]% G
;;与当前turtle的交易总金额( X; g4 q9 P% s/ G
local-reputation- H# G- |3 h* R
global-reputation I$ f) b3 C- Q( f$ E6 k0 l
credibility1 N, _7 F9 q0 N+ n3 c6 ]
;;评价可信度,每次交易后都需要更新. t1 `; h: _! H& A& j+ `; t
credibility-all
! I: L( K% F7 k# V9 r. L1 `4 h;;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; s4 @- v5 s& y' F/ a
. P0 D5 f3 q) l& g* D4 q;;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
0 s: |" i$ B, |- Fcredibility-one
. e' @" G9 L# `& f+ K" V, s;;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
1 W8 c4 O# Y6 lglobal-proportion. r: F4 _* w7 q7 y
customer
% q# Y; J! n5 j- ^3 Gcustomer-no1 D) o0 K, N4 Y' j( q% G
trust-ok2 j/ |8 l& Q- n. l9 l, I: k
trade-record-one-len;;trade-record-one的长度
1 u0 ?0 d+ I" S$ f$ []
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;;setup procedure
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( H$ g. M; |0 S! Rto setup
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ca
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& H$ N7 `7 G. g, c3 jinitialize-settings7 c7 e, n& r! s
q, i9 j$ P8 F w% S; @crt people [setup-turtles]! {" k* p. L9 ~/ u3 m& U
1 X1 E, ?. X1 C
reset-timer
" }$ [# T0 Q. | [9 W* y% o1 Z
5 L$ y& V# `; U! vpoll-class4 O2 c6 M2 D8 y" Y" ]" a
- @- t9 [6 I0 a- t9 h5 j$ x0 Msetup-plots0 b1 Q- r. R+ j' f0 P+ @: d" N
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do-plots8 I( w8 m+ e' q" @, Z
end
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to initialize-settings& C2 ]+ u, ^) J( n- u( c+ c
+ I: g/ u* y |set global-reputation-list []! k3 U# L6 Z; M9 O- B" r7 a% }
, l. }1 O0 ?. rset credibility-list n-values people [0.5]
3 q7 d% A8 d. W; S: j
; Z) k& v/ O4 G+ M/ u/ qset honest-service 0
; {. O$ d: U$ F U1 F2 I) q% ?6 b! h- h& r! E5 ^
set unhonest-service 0: q7 i9 E; s* ?8 w W4 E
5 ^1 D- H$ H( p, l7 B/ l/ pset oscillation 0" b' ?1 d* E3 w9 t( q/ ]
8 n7 f/ j: b! ~0 P& d \1 {set rand-dynamic 0& g5 {7 R% G4 W4 ]
end+ f2 m: C& e2 ]$ R$ r1 j) p* \/ B
~: P' v. z4 K$ n
to setup-turtles
9 M, R2 |! n( h9 G( w+ vset shape "person" |2 h# F7 ^; y% i, A
setxy random-xcor random-ycor
( X4 l' t* `% P5 J7 B# Rset trade-record-one []8 v$ G4 }' ^& T
! e, o: A" A/ J; Kset trade-record-all n-values people [(list (? + 1) 0 0)] 8 U; [, {5 y8 e X! c2 t
# w' X6 }! ^' W7 s+ f- Z3 jset trade-record-current []
+ |3 P& e* t- o) B9 o+ `# rset credibility-receive []
2 n% D3 G2 b2 X* ?/ n5 Mset local-reputation 0.5
8 u `8 G! Q! F+ @1 N$ b" p5 g" f" Mset neighbor-total 0" T. w5 r7 V* {2 r
set trade-times-total 0# b6 Y8 z5 t$ J! m2 N, O
set trade-money-total 03 n5 J- b9 o- _
set customer nobody, Q- j0 J y" ]1 P2 g5 Z+ Y
set credibility-all n-values people [creat-credibility]
9 L2 l' [* l4 @% A/ v8 Jset credibility n-values people [-1]
4 O: m. O) D/ v3 Uget-color
& P0 Y1 a+ z9 F4 ]
8 o& W- J) [. c/ f1 F* e Tend
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/ i1 [/ C7 ?' c! w2 ^to-report creat-credibility
: P* ^( Q9 v8 F4 S C; creport n-values people [0.5]3 r& \- J! y" G7 R. q
end/ n! R- o# {: g4 U! P; j
9 n; r4 m1 h3 G1 V* X+ l9 Y( jto setup-plots' T* s8 P0 m) m. G1 f; g. r
7 u' E( Q4 F6 M* C0 p, F" e
set xmax 30
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set ymax 1.0
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2 f* l- ~5 G2 x8 l6 Iclear-all-plots
" I$ }, ^" h& }
* B. K8 l' f/ W+ l$ T$ K+ X% q1 g+ Asetup-plot1
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[% `; q* Z( P7 t' {! D9 ?+ fsetup-plot2
# d3 a9 H6 F. t% c6 l6 j n' J" @# }9 _/ _3 j, Y
setup-plot35 Z" G R; Q# t( G$ w
end+ K* S0 ?- a' V% Q* |+ Q; D% M H) B
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;;run time procedures
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8 _5 b! K0 f8 `: o; Cto go8 c1 X' n& I# u, L7 w3 U+ j1 u# {
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ask turtles [do-business]
* L! d7 `+ F) I* u4 o* q+ Uend& x$ a' ?! `- V* u! {; O" I
# V6 `6 W" f; j+ b ito do-business 2 M9 l2 {# m% y0 r% V6 u7 G
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2 G* t: `% t- f" s$ y: j9 S7 Rrt random 360
1 ?+ e" z6 j, ?( \
0 Q4 I: ?3 Z2 ^+ z' Q% gfd 1) E, J% |: k7 [5 N/ Y* ] h! X
! a* J1 f* n& W [; F/ Vifelse(other turtles-here != nobody)[* ^% t- F8 A9 S& F$ d# x6 ^
- ^; A* c# n* [ s
set customer one-of other turtles-here
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;; set [customer] of customer myself- c' b5 G: \0 v* ?1 q
* ^9 m+ f2 m( x# [& L; oset [trade-record-one] of self item (([who] of customer) - 1)
) E. J' o4 A5 r# |$ g, `- _[trade-record-all]of self0 H" {9 |6 S2 O* o
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: Q" p) O$ z( v. ?: ?
0 B& p b( _5 C4 k, `set [trade-record-one] of customer item (([who] of self) - 1)
1 d- z9 ~9 B, l8 n/ \[trade-record-all]of customer* |6 C; W6 a; g
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set [trade-record-one-len] of self length [trade-record-one] of self
( a$ a, c* [- n5 N$ P: v
% b- W1 {3 Z( gset trade-record-current( list (timer) (random money-upper-limit))" j9 }6 G% _( B* q [
5 g) m6 K5 X+ n, L
ask self [do-trust], W. A5 x+ m! i
;;先求i对j的信任度# l4 E2 d* j6 s9 _# a/ _
" ~! x! ~0 U X; j9 tif ([trust-ok] of self)
2 Y: F2 z" Z1 E/ X8 L;;根据i对j的信任度来决定是否与j进行交易[
# d! s& ]! d; ~4 g5 Task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
u/ D7 r. T+ o$ Y) H" _. n: C/ l" x7 d' @4 Z% b1 B
[
6 |: T, X% L: ]4 r8 k5 a. v2 S5 @/ @
1 p; o6 `7 K3 r bdo-trade
+ R q3 @* z# {0 f3 t9 N- G) {! z
/ `! F( H' u! D8 w1 M: gupdate-credibility-ijl
4 b9 i. ^0 u+ x6 |0 ]# Z; p6 W
5 V6 f1 o; H/ l2 Zupdate-credibility-list% R2 Y$ g- Q, X3 L/ L Z
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update-global-reputation-list- t/ \8 P. {5 @; @. s. v
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poll-class: U: U/ _! H# z/ P; H+ ]! \4 W3 X/ w
; J' U, I, \( l: x* V' z- O, s5 |get-color9 e! h6 x7 j9 {4 W4 q4 `
; |/ S6 e9 w/ T! |: v]]
% l% ~" U; e* Y1 I: I- f m+ ?9 t( s
;;如果所得的信任度满足条件,则进行交易
" S/ Z1 F! H5 _* l& Q
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b. j9 o$ c" V3 e8 e, p1 }5 V. w" g1 u
rt random 360
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4 c. ?7 s0 i; Y& d. E4 mfd 1
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7 X/ ^: N) M0 M5 u8 Fend9 `* h, a* |( L* { A, ~
% y0 L- j7 Y) t. K; M4 B# h
to do-trust : H- O6 s& E3 [2 J. |
set trust-ok False
1 h4 k7 I# q b+ p& X) ?' o3 U' G; c1 Z- m) f* `
. t! l7 @" i. K& [) m. Ulet max-trade-times 0% g; \1 S* Q B+ T F; T2 p6 E7 H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ @" C/ N5 E, w2 D: C
let max-trade-money 0
# l, a7 s5 m$ `* K0 t- R6 m! ^- X3 y; Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 I% k4 S. O5 s0 ]let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ n; N! m0 Y) U8 t- g+ Z$ l
+ m* T* y' i& b5 Y/ P4 Z) N- K: R b# P# O# r6 Y$ u+ o
get-global-proportion' \- k) e5 s. ^* l
let trust-value
& t) R& i4 ` G V2 N9 ?) 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)
8 P# _7 ^9 A9 x: @# N% y" H/ Rif(trust-value > trade-trust-value)
* m8 G$ D/ R9 p1 c5 c3 x[set trust-ok true]
$ V, S9 Y, B$ M4 F; Fend
6 v7 D Y( o) q# P$ X) |# D+ a. _" v
- R. [1 L0 ~2 \+ Pto get-global-proportion
0 h. I Y& P% k; g" Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. g0 F: D, N8 ]' K- K4 ]2 O[set global-proportion 0]
9 K* U q' s# w[let i 0" Z4 O2 r' q( z
let sum-money 0 M. [5 A& d, w
while[ i < people]
/ B! W8 J8 V9 ?2 J3 W[# G( t7 @* c+ L- ~ l
if( length (item i
7 Z9 M( |0 w5 O[trade-record-all] of customer) > 3 )# O+ a* t0 ] Q7 K
[
# j3 M! z; t5 Z% N: y0 c8 H8 h9 H+ jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ q. F# }3 O& V) O( M, ^]
" Q; T1 D$ i1 s2 E% Z]$ k+ i3 X& b! F1 p" i2 y
let j 0, w& r$ i0 G) Z+ J9 j, R" Y; ` m
let note 0
- ?' [& g8 ` `+ X. Owhile[ j < people]- b5 p7 d( w5 X- w
[
[5 A5 |) E' N; h3 l- uif( length (item i
. s( Z9 o# n, O/ S/ V[trade-record-all] of customer) > 3 ), G; N& |% P3 M; e8 V
[
6 a; ?- o" f' h' Tifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* w# I0 ?! `/ B! l2 E4 `8 i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 j) s: J0 E$ U' V Y0 F[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 b- B9 ` B" t4 C5 b5 []
( ], t! m5 `* E+ u; j]2 Z$ F8 w! P8 E+ d/ Z
set global-proportion note6 y0 ^/ Z: W3 |0 O& E. q
]& t' Q! ^1 b! a
end
p( u9 c& f# R
9 N- m; E6 K# O+ e9 C! _/ P" A5 fto do-trade5 i$ o4 e: P& A& m7 G( T9 K
;;这个过程实际上是给双方作出评价的过程
' k3 T+ ^ L* k5 Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 x ^( p* E$ F; E% i4 j* i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& Z! M. K8 l8 O, q% Tset trade-record-current lput(timer) trade-record-current; W( w- s: @/ E& y2 o$ S
;;评价时间% }7 C) c% n( K- [6 Y) F
ask myself [- a* i% u: O" g- k
update-local-reputation
8 x/ p! B1 w7 rset trade-record-current lput([local-reputation] of myself) trade-record-current, R% s! Y: J+ T3 ^1 `
]$ C6 v% l% c/ ~
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 T9 _ H4 N. H
;;将此次交易的记录加入到trade-record-one中* k/ l* J: R5 V, P6 e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% ^: I# Z2 k* d7 m' ? b7 l: w: c
let note (item 2 trade-record-current )* `0 Y- e) n/ @0 U$ h( l* ~
set trade-record-current4 c1 H: [4 @; R+ l; a9 B
(replace-item 2 trade-record-current (item 3 trade-record-current))
1 B9 }/ b% \ Y% Gset trade-record-current6 r/ @+ B, x1 e" q3 v
(replace-item 3 trade-record-current note)( H S, B0 A& y& j6 r7 d
. j. W; s. W+ F" q. P* Q' n6 u! t7 v$ R4 e% u7 j' D
ask customer [4 e6 L/ i- g y$ |* |+ u* ], m1 T
update-local-reputation- y c ^3 ^6 n% s9 p
set trade-record-current7 W% P1 W4 h+ L' d
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + O" u) g+ c4 o5 I7 h7 r
], a! W/ \8 q0 _5 P& s, v
7 T2 c! ^6 b: b- B* I
$ r7 _* e* Z9 f6 Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% J5 q1 z5 I5 D2 W$ w) t1 V" X, \) t9 @8 Z6 h: I
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ O' _: y5 m) a5 X8 f& X' Z4 W
;;将此次交易的记录加入到customer的trade-record-all中+ b) k8 [) p* L) {$ [ M3 g
end) i. Z7 G8 w* K1 `! ^
# }8 t7 k' O- W6 s" Tto update-local-reputation2 {0 U5 C" Y0 y5 q% B- Y
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 N y' G: t6 N6 }; O
0 L& {/ C( \* P7 l
/ W7 F( x: ~7 w7 O8 T;;if [trade-record-one-len] of myself > 3 ! u3 G0 h- ]% k/ x8 i* p- L' A
update-neighbor-total8 b5 c( ~% c4 ], [2 S2 ?. D( D
;;更新邻居节点的数目,在此进行
& R! c3 z2 I p! O: ilet i 35 {7 m5 d2 o: D5 }: w( c
let sum-time 0
E5 U9 f0 k! owhile[i < [trade-record-one-len] of myself]
$ E! i) C, ]+ Z8 `" P[
@% j" C' a( a7 ~- Q4 q4 tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 x* v' ^8 a' o( j: H1 r$ p. Xset i
% E0 n: H. o5 i6 U1 o) P! S( i + 1). P$ }$ G; L, r$ E0 R+ G6 B
]' p$ K" V0 W6 x0 @% o
let j 37 }! @/ M; x! n; v+ @
let sum-money 0
( {; Q6 v* M7 ~) R8 ?: dwhile[j < [trade-record-one-len] of myself]* O0 ^( i. e* e
[3 t7 ~3 _/ N' m- A7 {$ Q3 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)2 I1 H+ u' X: W R% p
set j7 J J; v# `% ~! {8 T- ^3 m
( j + 1)
6 N- v1 ~- o4 ]* n* }]% j! ^# b i+ x
let k 34 m' `/ `$ @3 z9 z. A; @
let power 0, J. f/ S: m5 c3 Y
let local 0
1 `4 Q7 c/ C5 F' p' e8 o4 bwhile [k <[trade-record-one-len] of myself]
7 d: t7 p1 ]0 a/ j4 ~! ^[: a" V. j: C% {3 {6 c' o; {
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 A2 u, D% c4 `3 |: }; Z
set k (k + 1)
f) k" ?8 \. ]7 Q]' R8 l5 z1 o& \$ G1 T% u0 f* H
set [local-reputation] of myself (local)
! V, V) S/ R2 G4 F* E8 }end
- s0 F' L$ ?2 T- ]
+ r# N+ j: D6 z1 k" T% ?+ kto update-neighbor-total
C% [; S" x, A0 P5 {3 M3 \! M
! Y t4 r' W2 [! D4 D, q# fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& z2 Q# C( f# y% _, J5 w
8 q& `) ] q* ?6 [7 Z3 d9 H, U& s% _* ]+ @0 {- c1 m
end1 t: Q4 Q# \" D5 h) i: Y' c# |
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to update-credibility-ijl ( c% d: t5 e' b6 z5 E2 `
6 i- e/ B8 Y. A! q! @+ q
;;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。8 f4 t& Q8 Z8 o% G) G
let l 0
/ [* M! s$ f4 h! ^while[ l < people ]
( G$ t0 n0 ^6 N2 s, \;;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1 }# p6 h) X* F% D2 n0 | u Y
[
@; k9 e/ C& O/ s5 {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" Z T& Q% L8 g7 v( pif (trade-record-one-j-l-len > 3). C' p* U8 Q& W
[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
( m# ]1 N& w& @4 E" Q$ hlet i 3
5 p% P* ^. N; [2 v+ k( Ylet sum-time 0% z: R4 h5 C6 o* _8 V3 f
while[i < trade-record-one-len]
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. }( n- b; ^2 Q3 J2 Hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 M- \! t! Z. m5 m6 |
set i' _1 c! T+ E6 q S/ K
( i + 1)
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let credibility-i-j-l 0$ s' S( R" u& O
;;i评价(j对jl的评价). @, X5 ~6 U! p U& U+ t7 R
let j 3( S% d% ~9 a: J( J
let k 4/ Q' ]; F) l% _, Y- @7 y5 Q* U
while[j < trade-record-one-len]
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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7 {5 L1 Z/ @; l7 d. }( ?
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)
6 X$ W( _4 e) v+ Rset j
9 f3 L5 K4 `6 @6 a% l" `0 ^( j + 1)& z3 j, c3 S' Q# T4 p3 A+ G5 s4 }
]) G) t! q6 B/ {1 ]9 b
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 ))
( y1 z4 a2 h$ t( `9 _* d5 }4 u% w# B$ u) q( U9 }
: G* g! u# t' N# olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! _; Q' J9 j2 w: @0 p;;及时更新i对l的评价质量的评价
2 }+ ^1 p, s% _5 k y, p0 w q% Q7 zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- ^! t$ E0 c0 i2 ?
set l (l + 1)( N$ s' I4 r( _& E8 V
]
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& y7 w6 S$ H8 O/ C2 Q; t. g# }) O
to update-credibility-list' T; Z1 j& G7 f' V: S& p& I S, `' t
let i 0
3 S w' T* Y c% twhile[i < people]7 \) e. m; v- L8 E* q$ H" }
[
6 a: g; s3 g- ~' Tlet j 0+ d. Q2 k' S4 z3 X3 O* D
let note 0
8 u5 p R( E' f1 ^9 H9 ]! [let k 0
5 a( k' f, B- a" Y8 o9 _;;计作出过评价的邻居节点的数目
5 H7 F) c) P u) Kwhile[j < people]
; g" O P5 a+ Q2 x[
/ l& ?5 {' r7 r2 f$ Aif (item j( [credibility] of turtle (i + 1)) != -1)
. J8 w9 n, O! [1 I0 }/ R: R;;判断是否给本turtle的评价质量做出过评价的节点
: G" W8 @9 |: Q" y! p2 ^( D' q[set note (note + item j ([credibility]of turtle (i + 1)))
0 h4 P3 j+ x! Z |4 N7 R7 P: @;;*(exp (-(people - 2)))/(people - 2))]1 z# c4 v0 ~+ ?& x( ^0 B0 c, v
set k (k + 1)) ?9 Y, Y4 C7 j
]
, x% N, T/ x4 b6 d, J! [8 h8 jset j (j + 1)# q! v1 Z; v+ H5 R. T1 T
]+ o# E' p7 Z/ d3 f
set note (note *(exp (- (1 / k)))/ k)! E5 T _3 [: x# Z' J r5 {! N
set credibility-list (replace-item i credibility-list note)
( q; ], _' ~" U2 R; x* Vset i (i + 1)
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end
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to update-global-reputation-list. R4 N, D. n/ J+ S
let j 0
* w2 h8 w8 q" ]& s, Kwhile[j < people]8 C8 u5 W9 x. @/ a. Y& w5 K) B
[' D7 G1 b' e: p, h7 f2 e
let new 0
! j. c1 ^; f. o# q;;暂存新的一个全局声誉
4 v6 J: L5 W+ M" {# [ }- u% Glet i 00 N8 y9 `- Y$ B, N
let sum-money 0- N, Z# e- G* i6 c" @
let credibility-money 05 i3 f9 L. z p8 E. _
while [i < people]
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: _8 S! T. N5 E7 oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' @, H, [% |4 f; ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% r* P: f; V1 t0 {% g4 A1 q
set i (i + 1)
m. Q- G8 Y4 _8 p$ _% e]
- i: `/ z) O( f1 b+ {let k 04 n, ~2 z$ y. X" l: {: J& S0 I
let new1 0: ~# y, L, V; |4 }
while [k < people]: j# M7 k4 b4 Y s" w7 k
[& N2 F6 H6 _1 @
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)
& }4 e# Z9 |& U# k4 r) bset k (k + 1): ~, I9 T( N4 u- g9 `
]
1 J/ }- Q: ~& g. h3 y Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 Y/ s0 F# ?: ^& D/ f4 A
set global-reputation-list (replace-item j global-reputation-list new)& A5 \8 [/ M2 l- J* d7 Q: \; I
set j (j + 1)
2 x) ~) P3 l1 ]9 {]
K) u/ [& {7 G- T3 q% bend
: R6 M9 |" c+ A) s- Y
2 Y+ f5 K. b. h$ d/ k
8 {" N4 m( i& j( }; m: b2 x6 S' M3 K( [; X5 B* m, z$ ^
to get-color
4 k# j2 q4 } f% M, L2 @/ X
( ]! @( y8 X, H9 `- ]set color blue
% U5 ~! P9 x3 g0 u+ g2 |end
1 \; O6 X8 q7 B$ C1 S" h2 c9 j
! K& E# F% f7 U. |to poll-class6 q7 C0 s. ?* X; S+ K& t& O
end
( z4 v3 v; t, B! j" Y2 P0 J9 P( a# i4 X
to setup-plot13 H" a' p: V# t
( |) k0 i4 o% W1 y, f
set-current-plot "Trends-of-Local-reputation"* P% c, O O! L2 P
8 |- s" b- J; v- d( T
set-plot-x-range 0 xmax2 D/ l" v( F3 P1 f& P
/ A& x4 F& T0 [6 q
set-plot-y-range 0.0 ymax w9 F4 [0 X5 F ^
end2 P. l4 f3 g$ m' `+ S
: A" I0 A3 j) M& X5 p$ G) l7 {
to setup-plot2) c' @* @$ x; {+ f- w+ [7 d
! c% P9 x7 \: \* G
set-current-plot "Trends-of-global-reputation"
8 H5 g3 m- |8 g6 |) Y/ U
2 d5 H; Q8 n, U- |' f( Z/ xset-plot-x-range 0 xmax% Y% g0 \1 k7 j4 u8 |4 o% A
% c# J; X' L1 A* Y0 R
set-plot-y-range 0.0 ymax
: Q; H; c7 S$ |7 W$ T! X) nend
& r& E" X( K+ C, t0 k: [
0 `7 c! x7 b; X/ `2 u4 ]to setup-plot3
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( c* w$ E1 x2 h6 m6 xset-current-plot "Trends-of-credibility"& d. S8 g2 H; u* G
8 t2 b Z# N( y6 N1 e" z/ C0 rset-plot-x-range 0 xmax2 |. Z W) D# s+ q
3 l6 o) g# @6 A6 ^0 K2 dset-plot-y-range 0.0 ymax! G k: H! {2 a+ u2 S) g5 j( _' w" O/ f
end
* [6 h: S9 ?) B
- X( R6 f+ e3 R# rto do-plots. P( d5 i5 J6 t
set-current-plot "Trends-of-Local-reputation"2 {, R9 y0 @. B9 K
set-current-plot-pen "Honest service"
3 w! b2 k& D; E q# i& l/ Kend
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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