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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% z- I( z" P7 d/ q) C
globals[
* U9 k; T, ~3 w+ e7 ?9 Exmax! @/ ~0 _& L! g3 @, v
ymax
( ~4 }- j; O. w$ uglobal-reputation-list
( K/ `! B8 l" Z# ]( `2 E& |) }" q( n& E8 e9 H
;;每一个turtle的全局声誉都存在此LIST中
: R" P5 V0 `" U# ?credibility-list
& e& `7 e' B! T/ d1 k;;每一个turtle的评价可信度
% Z( a1 ~5 O# ^" C$ ?0 rhonest-service4 z, N- L( G [0 s: L0 Q
unhonest-service) W& Q1 o d- N
oscillation6 I/ _1 y; r/ `6 P7 g3 O
rand-dynamic
4 \+ r1 o1 b' D6 X2 F4 E2 O]
2 w- d7 }9 @# B9 l0 c1 r" |" g" ` G" V4 j# r8 V
turtles-own[
2 ` w5 q" L. D0 t! ^/ b8 B" itrade-record-all2 j* _3 D7 M+ ~
;;a list of lists,由trade-record-one组成/ g# D$ q' j6 t4 g; F
trade-record-one
1 m! A, W f. }3 v;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 _0 E$ r ]) o- d/ _$ i
* c4 l" g4 {: o;;[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+ g' ^% R/ b1 u" [6 Z# m. Ltrade-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]
, n, d5 {2 W' B7 C" E' icredibility-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& A9 q0 N2 t! W7 O$ p! k8 w$ d
neighbor-total+ g3 M0 l# S+ ?3 J
;;记录该turtle的邻居节点的数目
1 e- R2 Z& [+ G2 F2 D, atrade-time
- Y: n0 q9 t# Z5 y& _3 J7 w( Q;;当前发生交易的turtle的交易时间
& T2 l1 S6 D* i$ Q0 D# ?; _- aappraise-give
C( K) h/ S7 a;;当前发生交易时给出的评价. Q& Z) ^4 ^& w. R" c
appraise-receive- p1 ^! L( _, c) t
;;当前发生交易时收到的评价1 A$ C1 A& c3 m( c
appraise-time0 l5 Q3 U4 |* g3 g, O
;;当前发生交易时的评价时间 Q7 o e' E% I7 l" z0 _/ Q. f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ o( k) r- a5 m" \trade-times-total/ T( H* s N( Q+ _# s% D
;;与当前turtle的交易总次数+ g0 @& j$ m0 U# J2 K% Z
trade-money-total
' t! `! R ^: M9 }8 b, C;;与当前turtle的交易总金额# w/ S- |2 T U5 n" u
local-reputation, w& s1 {! t# i! P M! b
global-reputation
- F) m) t, s( P8 Y9 I- K, r4 Rcredibility
& v6 v, D T ]+ i( X;;评价可信度,每次交易后都需要更新
. Q# E& b* l" Ycredibility-all: K# m5 V! ~8 `7 m! a9 S" N4 r
;;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
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* ~3 w" Z% g" t, r/ z: ]% V;;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
4 ^2 h, k, ^ p3 l" t# _credibility-one
% V; R" o( x' |0 B; M6 ^+ _;;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! }7 E0 \! e( {2 a2 G! Y) |1 T/ c
global-proportion
2 s7 n8 v9 |/ t) g9 Y! _ s9 z+ M: vcustomer2 s: f* A! l: j# o2 _
customer-no
5 E# z$ |, L, e% l4 R3 D0 ntrust-ok
5 W1 z k7 S( I, atrade-record-one-len;;trade-record-one的长度
9 i% x1 [2 S' S6 i]
6 L0 u6 q! y3 R, F2 Y' Y: e' F3 @/ h/ n
;;setup procedure
9 \$ H5 R8 v) y# e' S3 r( w
( N# N& s( f O9 d, X4 Oto setup! N: U# I& B8 I7 P1 w4 I+ P( k1 E
: M- r) y& @' g. F1 W% N% Zca
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6 e; D4 G" B: F0 L0 _) jinitialize-settings
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crt people [setup-turtles]
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reset-timer' G" M1 m- M9 c* j
- [3 N8 U, M+ z0 _1 Y1 l4 a7 Z( p+ C1 C
poll-class5 [8 P4 I- L/ V f$ u
3 @! s l) {7 E( K. ^5 c# t( @! isetup-plots
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do-plots; h! `4 j$ j2 H+ {$ m
end$ s* F# ]- w* H6 C& y
' [; m- b1 v) y' r c/ U1 A; V! F h$ Wto initialize-settings
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set global-reputation-list []
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( {: }: P) D/ J" e1 u7 `set credibility-list n-values people [0.5]
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4 I3 L& S4 _/ @# |- m r4 r) zset honest-service 0! z9 H' S3 y5 R; ~$ ~) J* m
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set unhonest-service 0
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set oscillation 01 `. s7 F$ R- b! a
/ Z; r0 M+ y( f/ F! M( X# }set rand-dynamic 0
1 q0 | I" D- k0 [( Tend
8 U! g) q: z7 a" `2 X3 H, i0 c
; U* T' |3 {, D/ P* jto setup-turtles . a1 Y6 t! Z2 N5 `/ \9 h
set shape "person"
4 S0 b8 ?/ V) W8 ^4 H1 gsetxy random-xcor random-ycor/ ^' l3 }( O" b0 |% I5 \9 I3 }
set trade-record-one []+ H; x8 [# H. `7 C
8 `* M- k3 [: i" Y$ t5 z% {: M, _
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 l! t' Q& j2 c7 m! U- V8 n
I# T: A3 @0 Y; n1 Dset trade-record-current []
1 B/ S. [7 C3 j$ eset credibility-receive []
& t/ W0 @. T6 W( M* F$ cset local-reputation 0.5
" \5 f- L9 K! j( b) }( N( m: fset neighbor-total 06 h+ P- x! m t2 T) |2 U
set trade-times-total 0& R+ S+ ~0 F+ c7 R& Q* J
set trade-money-total 05 Y& X) a! z; b
set customer nobody
. o$ s. S& E2 ~ ]1 r# g! G+ T. z) fset credibility-all n-values people [creat-credibility]
" }3 ^/ H0 ^. I6 A1 G' E3 j" Fset credibility n-values people [-1]$ \" e6 n4 L$ H T' K+ q I
get-color3 F, {0 K1 O: C2 c
0 ]: N; ?( m; P( n3 tend. d5 u' Z; h; u8 d' F
1 S# q$ s& v) m! P8 ?to-report creat-credibility
" N- {2 ?5 o( Q/ }report n-values people [0.5]* Z1 k1 k( `. q( K4 O5 f- J3 p6 m
end: P& S/ `- s% x0 b- t% g8 ]! z+ G& E
$ X6 f# \8 v; }% X$ a8 `( { g1 Z
to setup-plots( D4 w2 B$ ^* W9 q) i; g# t, z
7 a) [+ {# @- t% P0 O
set xmax 30* Q8 m9 F6 w9 H# }* d' W: v/ o H0 _
! q% R9 a* X# a+ }4 U: b' [) f! _set ymax 1.0' r, M% J/ L3 \
! U# H4 e& R3 b# g' ?clear-all-plots6 D" W# m: k$ Q' A$ Q" W. K3 \
+ L* g) K. V R' H* _0 A
setup-plot1 G1 x, A( V* f2 f
+ [6 q# y v2 ^9 Q: A' T0 c, ?2 c
setup-plot2; G& ~" D( @# c$ \& G4 I
$ g5 x% j/ _/ X+ T% y4 O z0 E5 Usetup-plot38 b) t- \! _" c$ F" i9 ?
end
) S% K6 `% J7 ~0 a9 ^
) X7 \; O2 A. A3 g" r# l( m;;run time procedures
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to go$ H2 T( B3 I" o0 K
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ask turtles [do-business]( Q& A- ~, U* @
end) o8 \/ L- N6 C$ O" M" U; s
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to do-business 5 R" ]6 a) E. i
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5 O% s2 f# ]; |2 o) c. vrt random 360# A+ o3 q; [9 u( l: e' C# k
& Z& u9 [4 b" b, |2 g( g
fd 1: A9 @; W! G! `5 o' n+ D
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ifelse(other turtles-here != nobody)[6 u' q8 n( [& U9 @+ J2 l
- n* N* S% T9 {2 x, M0 {+ A
set customer one-of other turtles-here& K4 a) H$ w0 b* g' Y+ K2 E
2 l" e: V6 I9 r) F, g; I, Y+ b6 ~1 ?;; set [customer] of customer myself3 W/ q# i3 \; R- Z
3 U$ y' h) v3 t" i q1 h; v& [set [trade-record-one] of self item (([who] of customer) - 1)2 Z: ?: {9 N) Y9 O5 R
[trade-record-all]of self
9 n' U# r, N9 P' }8 h9 s; S;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)3 x; M7 Q( }) B$ Y+ }$ {) a# m
[trade-record-all]of customer
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2 `6 I8 e- S* p9 T+ B+ ^ U9 ~set [trade-record-one-len] of self length [trade-record-one] of self5 h$ T6 @2 \" w* q [- D
" R3 W! k, u, e, H1 O3 B1 nset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
. p: Q6 e6 \6 l;;先求i对j的信任度
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* X; f. B( G7 j; qif ([trust-ok] of self)
* G- E% y) ~. g% D8 m) e;;根据i对j的信任度来决定是否与j进行交易[
" d8 e8 E0 X h' }1 L% `8 {7 u* O. L8 sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
7 H# g: D2 H6 V, o7 O$ L V. I8 I" N1 _* h
do-trade
+ d8 ~+ @9 _4 E$ u5 e' Y9 e
9 B# |: ?4 Q6 K3 ] a3 t. n7 V0 Y6 Uupdate-credibility-ijl
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update-credibility-list" p& f' F1 w1 \2 i7 N
) @3 l2 v# o) q2 V. D( f; {
/ D, a+ Y/ L( M, H7 @4 @5 \update-global-reputation-list+ H r: Q3 \0 i; i, u
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poll-class
- P( l* O& H" X* V- I$ _
) Q1 X4 ^* t! x1 Kget-color# a' ~- t3 l- l a# K K" |: j# N
; b5 Z1 W5 Q4 g]]
( ~0 i' h+ N1 `) L9 S- C( O8 {( d* J* L
;;如果所得的信任度满足条件,则进行交易
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[% u8 w! o+ X! V" b) z) m) C
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rt random 360: Z: E w- j1 @. h+ z3 d: P
0 ~, @7 R8 J, }* C' x
fd 1
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]3 ]7 N6 v$ c3 T6 U
4 Y7 t$ a5 I' {end
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$ g8 i, `- H& R0 K3 fto do-trust
& X% [1 l. e8 \0 ]9 d4 Gset trust-ok False1 w* f* ~* e% E% i' v
7 p; w- O r- U- v7 B
+ U( r2 t& v" o! _0 v3 \let max-trade-times 0
; ~' {- \3 g0 Sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" ~# } W- x u0 Dlet max-trade-money 05 y3 h% m# z" A H& B! n
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- j9 w) `. Q4 i3 M) v
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! w) m6 p+ |: Q/ k% Q4 ^1 G5 }
9 [8 k B8 V! v4 C
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get-global-proportion
: G. {4 \* F: Y' | \ jlet trust-value
3 x2 i( e2 o& d! H- S, Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)6 e8 n& J* s) E% K+ F [( q
if(trust-value > trade-trust-value)3 {$ k% E5 D K: P, o. P; t
[set trust-ok true]& u9 @3 s" z! _: d' ~# g( Z
end
h0 [+ f0 F4 r( P; G0 X! }! I: u, z* R1 u- E/ u6 j
to get-global-proportion
2 E* n" D. a& v6 v$ G4 eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), q6 |1 p. b( l6 W s% f E/ V
[set global-proportion 0]
3 S5 z7 |" u9 N' B[let i 03 `% w7 o0 z! l+ }& p) ^
let sum-money 0
' N5 v1 v' e6 I2 r0 G) }while[ i < people]0 ]+ G% `! `7 ^& X/ U( f
[' J0 I! s$ X, b
if( length (item i! k7 A9 n4 `! y+ w6 o5 e$ k; O
[trade-record-all] of customer) > 3 )9 F/ ^- c9 K8 D
[) K: @6 H+ v% X) G- Z" |# S% F1 @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 w# Y! \# q; X3 B5 z# G
]
) F, W1 j8 b5 B( _, _* e- R& q0 m]& l: m6 I; g9 L2 v1 U# ?( C% {
let j 0
# q1 W8 M9 J" d) e9 qlet note 0
`% n! R' R; n7 V7 \! o2 j" Gwhile[ j < people]
( k/ R3 p$ K) k/ w( a- l[# Z' I, @) C! k6 v% @# V
if( length (item i' a6 F4 S# U4 [8 y! x2 `( v0 N
[trade-record-all] of customer) > 3 )9 \8 `4 G! N4 B# K$ c
[
9 v5 S) y, y1 j, f8 S; Iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: I: |2 v1 ?+ o2 ^; r' C" Y# 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 f' r9 e0 p+ x4 [2 i[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 Z- e: w$ ?' M& K]6 Y- K0 }. W" Z( I' y$ V( B" j
]- r1 y+ e* _3 M0 Q* g2 h
set global-proportion note
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end \7 @) u( e8 t) x
3 E' d3 n/ @% j' d6 X
to do-trade
1 M6 }; ?% E6 Z6 s7 o/ B;;这个过程实际上是给双方作出评价的过程
( k% |/ |% e1 ~: @# aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% o6 p) M$ W. y9 }' }% d- g: {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 h! r; I* O# @set trade-record-current lput(timer) trade-record-current
5 }* O0 O) m3 }7 I5 i2 @;;评价时间
' e% u9 N; |$ M) {& ^ask myself [
# A" I: W+ n$ nupdate-local-reputation
& x1 H2 N: b+ h2 n' P: p& ~7 t! ^set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 ?" y8 D: m! l& C1 I' j* K: B;;将此次交易的记录加入到trade-record-one中
/ H4 v9 b# B3 B7 l1 Jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% b! c; J& \" o9 S0 B
let note (item 2 trade-record-current )
0 m2 w3 E3 P: @. jset trade-record-current% Y# M1 G n. c' \
(replace-item 2 trade-record-current (item 3 trade-record-current))
( Q; f! A8 X5 ^1 ]$ e( ~set trade-record-current4 f+ ?7 c5 i+ S! d8 g1 u! w
(replace-item 3 trade-record-current note)
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" W5 a' T! H3 l( z4 f* A" i9 q& m) o' }; `- Y' H2 G
ask customer [
' S7 ^5 m: z3 I% A/ F6 Iupdate-local-reputation
( T" L" a; f* Q$ F1 @ Xset trade-record-current
+ ~3 {9 u. m) ~+ g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 s- z3 f- a. O+ c a/ w; A* h1 ]]' n' l0 u3 ~6 \8 d T
9 ]3 Y# P9 L! Z1 _
- L q2 Q' `" c/ x; ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: j& [( Y; P. r/ e5 V8 A& j! _+ W
- e S( R' W+ ~. C+ G7 G: Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# A1 M! J; [! A6 O, L. ];;将此次交易的记录加入到customer的trade-record-all中
( [3 R' V# `4 c* fend
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: c- u0 R3 s; }4 V9 z Nto update-local-reputation
% X5 s" u" D9 d0 o# p- {5 t+ Qset [trade-record-one-len] of myself length [trade-record-one] of myself
H% V9 m* X5 o3 e3 l+ w u# v5 Y7 V$ P" W3 d
1 j; v% s7 o# k1 t6 a) _
;;if [trade-record-one-len] of myself > 3
+ ^ X% r5 U! v4 B# Gupdate-neighbor-total* A! a/ d1 P1 }# c! i# c
;;更新邻居节点的数目,在此进行
' `0 n/ R( r7 w q/ h9 f Ulet i 3
* {, ^" F% [% E3 i! I0 U6 ] alet sum-time 0
) F7 y. z! \5 v, m h7 f+ |while[i < [trade-record-one-len] of myself]
: e; X5 ^6 [+ H9 q5 q3 o[
/ l7 |7 [: r. q7 x7 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; ^/ Y6 q' X1 C1 p1 c5 w5 Iset i9 v x1 }0 t% D& h/ l
( i + 1)4 d, k. u3 ?, u6 Q% N& a; \: W
]
8 l" s# X& v9 `% b2 m( flet j 3
- H4 i' h: K- V' ^# I g1 O( y; }7 F; ylet sum-money 03 F- J$ V* n) a0 y- _5 h F
while[j < [trade-record-one-len] of myself]
% Z& L9 `6 e- W* W[
4 f) [5 K |, j/ _" o0 m" Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
0 [: D' y R) Yset j; B+ L" w! e) w e( _
( j + 1)
# K2 ~/ Y$ I- B4 _], J, ^! L ~! X4 s8 q
let k 3
8 p+ i3 j& y) E. rlet power 0
" Y' m- a8 N# |6 E- k# D. u k" Wlet local 0# i# M0 `4 m* v# C k
while [k <[trade-record-one-len] of myself]
! W# y! s& E4 Y% Z[
& \9 }6 T9 O# |; qset 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)
1 h8 h3 z; h+ v/ [; G6 Pset k (k + 1)7 d m+ m% H0 Z- O' O4 P- Q t4 U3 h
]9 }- A m2 ^% _. i
set [local-reputation] of myself (local)' y4 C0 ^% j* I
end
' y" L r g! u
/ O% k& H4 `* `5 v* oto update-neighbor-total O/ d; J$ M% J! c0 | c' {
% r2 o1 j1 P! N* X' A: H& [$ |
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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" d" U/ E9 r# n/ p- X, x% Zend
% ^; \' _0 X5 h [! q8 n& C: u( c" |( p$ d& C, U- {- A
to update-credibility-ijl
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;;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。/ r% q& O! F9 D4 m( V: m
let l 0
$ | u; [( g! C7 ewhile[ l < people ]
0 X+ S, u% x8 Z2 j- @$ ?;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 U5 R7 t8 S4 d& @) T3 X
if (trade-record-one-j-l-len > 3)% D) W2 P' X, V1 `, w2 k* @( l
[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' ^+ A4 c! }5 R: s" R
let i 3
+ l E1 I3 z5 f2 ?$ |let sum-time 0
. ]2 |+ k! g! ]while[i < trade-record-one-len]5 m0 Q" |+ J- z9 H9 T. U
[& y5 y9 a5 ^: k% { M
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 X: x' B- T' B5 C% {9 uset i
! X9 f- [! s$ V# @( i + 1)5 e0 e3 d5 a6 z3 S" O6 m- n
]+ J, Z; H! H& J. A* b# e
let credibility-i-j-l 02 v: n' j* v6 V; e: L: m3 q
;;i评价(j对jl的评价)* E5 ^+ s5 m; z
let j 36 N1 H- C% r# F) {0 Z
let k 4
5 F/ H$ f# }/ P4 d5 f0 K5 mwhile[j < trade-record-one-len]; [( @7 N+ x" i+ N4 K
[+ \" h! R* R3 P- I. e
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
) \1 r& i' y! P' a# Yset 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)
+ X, P' X7 k! k) hset j; G! ?& i- x8 e- e: T
( j + 1)
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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 ))2 ~7 ]9 Q( X6 K8 P/ ?" k" m% d t
) {# s# z( G0 [* y @' u# d9 F
+ c& q4 ~0 G' P: y: `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 P6 T8 [& y R3 S. l; I' `;;及时更新i对l的评价质量的评价
0 z) v. |- }/ z' p% H ^. g; x8 eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* Z `7 ]- n1 xset l (l + 1)
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end; o$ @- C# t) h; F4 a0 Y) V% G
* ]0 ]$ \7 ] e' Dto update-credibility-list
! U7 W5 b7 ^9 tlet i 0
8 M0 Y7 X% r7 n2 V1 z/ d! Iwhile[i < people]
6 L( w( g% ^' H6 v+ i[
5 u4 _2 Z" {7 ?, J+ z( @8 Klet j 0! J! t' e( j( W0 c' F$ j
let note 09 a2 |* i) ]5 ~$ L: b
let k 0
0 ?. g5 U$ v. J) }9 S8 D+ l;;计作出过评价的邻居节点的数目
9 o* O9 ?' q' ], }! Nwhile[j < people]) g+ Q' m8 U- u _, \2 } w h0 b
[% A9 R" k7 V( a7 B
if (item j( [credibility] of turtle (i + 1)) != -1)
, N' x, W5 e5 a8 X2 M+ ?. ~8 b! |;;判断是否给本turtle的评价质量做出过评价的节点
# O: k/ p i9 c* \$ Q) F Y6 \[set note (note + item j ([credibility]of turtle (i + 1)))
! H, V+ z) ^. ^8 f;;*(exp (-(people - 2)))/(people - 2))]6 ]% {4 P+ F: s8 e$ u( I
set k (k + 1)' C3 `# {/ k% B0 X- l# y) U# X
]: ]8 U+ i3 M+ ^- Z
set j (j + 1): v; e, x) T8 E* c* l
]
+ G$ m u0 w' x+ U- s3 lset note (note *(exp (- (1 / k)))/ k)% _' N$ {( D1 T1 O& d1 O& b
set credibility-list (replace-item i credibility-list note)
# U) Y$ E4 ?2 P, s( K# ~set i (i + 1)( t0 ]: o2 }& G+ [. s$ I7 o
]7 J; w0 z2 h' K& c6 a
end
. Z) F: _4 `* Y) C. u
* e" Z" A2 `! e+ I" [1 @to update-global-reputation-list
- b8 e9 K, [3 W6 q: elet j 0
0 U" R+ q6 H G2 ~6 Owhile[j < people]
- c0 Y- C) T: T' x; o& h[7 N$ r# h7 i! I) d8 f" r+ G9 f- O: i
let new 0. o. v+ D" |: C2 j
;;暂存新的一个全局声誉- a2 e% U" h6 |! S6 t/ U2 @; W
let i 04 t6 }+ ?! }8 Z
let sum-money 0
" |/ ~5 ]' B5 ^" v. e! }$ flet credibility-money 01 P" G; q5 c6 c1 B9 u
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
c2 O( o( G* O2 e! s! Z) `9 p9 Pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' B% ?8 a# L/ r& `! x, jset i (i + 1)
) }5 C& ~4 w; w- U8 p5 @9 f]! @2 d4 m0 y( W2 f; i$ b
let k 03 I- \4 ^9 w: Q
let new1 0' ^ N& U0 w' T$ x# I0 F, n4 X( b
while [k < people]3 I$ J. M; A9 K, b7 f
[) ~, ~+ u- W! _. B, e4 g9 D
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)
. |1 o, G! }+ C( ~, a) xset k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 y& Q3 U; N4 h0 n
set global-reputation-list (replace-item j global-reputation-list new)
/ S& Q" e9 b8 J n/ v" kset j (j + 1)" p* @" s- \5 v
]" E1 }) f% D7 y
end" ~5 q/ u; I, X' b
* W2 o1 q, ^; h( G% v1 k1 a& c' H8 N" ?
% A3 J0 d0 Y/ D5 }) Kto get-color
: L2 d+ u" `' `9 X& h
8 y' S0 u8 C1 t9 o% y7 d, eset color blue
4 |: w) J* @' R4 U7 m! i0 P6 Tend
5 F4 T1 Q$ K: y; a5 G+ ], G! A7 @: T& z$ G/ y
to poll-class) O/ Q4 u! u( n E# O0 W, Q
end7 Q+ Y6 y5 ]1 S# Z- {& [' x
# \- r4 {* `( ato setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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+ t( T: _2 ^+ r1 Wset-plot-x-range 0 xmax
0 `) E5 y9 i2 T N3 A# m8 [% k1 a+ U( @3 [5 a
set-plot-y-range 0.0 ymax+ k6 \/ K3 d/ o& w
end
9 ]+ _$ A. a c0 v
' }. h J2 g6 H7 O. kto setup-plot2
# J+ H9 `: ~* f/ u6 @' W6 F' y$ J( j5 y- F/ o. T3 T1 s- t m
set-current-plot "Trends-of-global-reputation"
, | _6 ^* H% i( E& F& [5 F6 w9 v( Q5 @% q* {& s e& X
set-plot-x-range 0 xmax0 g- G9 O: y9 _, y8 A, e
& [; p0 |3 H% T9 ?' ^# Uset-plot-y-range 0.0 ymax
/ _# v, ~7 {" H% ^" nend9 m& B+ i$ s3 J- }9 E) L
9 |9 h/ [: Z) b% M8 }
to setup-plot3
% g( k; T" |. G& \
( L' e6 r e) x0 vset-current-plot "Trends-of-credibility"
$ o) |: V' ?3 f7 }4 q
& t0 B9 l2 Q# o- [: c6 Uset-plot-x-range 0 xmax: Y* M( v! O e9 E( s9 b& n
4 G9 o! G. H0 q! q4 `
set-plot-y-range 0.0 ymax; ]" X0 _( T; v5 B) l9 F- M
end
2 l, f: S5 U ?" O! b
3 i% h9 A4 o: ^" I! K' F5 _to do-plots0 L0 q8 ^0 \1 T
set-current-plot "Trends-of-Local-reputation") F2 C6 g k) h& f
set-current-plot-pen "Honest service"# H5 n4 ~* P' s0 N
end5 F" P' V* n3 `) H' K& \* m+ c
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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