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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
+ F9 r: V+ t$ o# r! q$ aglobals[
- F- U1 E7 n4 q3 m9 T! uxmax5 T' A) @/ p5 M0 D, L3 p3 g1 H7 {
ymax' ?2 q) G$ l4 a2 j3 v) s
global-reputation-list
, G @! q# z$ L
' A. B* W2 i: x" N/ o;;每一个turtle的全局声誉都存在此LIST中
" ~$ g A% Y& y( n8 n$ Wcredibility-list& }" f3 o1 x: E" g( }
;;每一个turtle的评价可信度7 L5 P+ G7 Y; e, Q
honest-service% m/ F. f7 h4 a; E. }6 P; s( @* A
unhonest-service
+ h7 K3 |% ?+ v& U) Roscillation1 u& {- j! r) s5 K5 n
rand-dynamic, t3 p4 e" q' O; j' |$ e9 K4 V
]2 z9 [6 f8 Y& {# W; J3 X9 j0 x
' m4 j+ b- [; Rturtles-own[$ M$ R& w. }, @+ [
trade-record-all
" [* ]' d# y' J- ?0 Z S;;a list of lists,由trade-record-one组成* \$ Q; [; b, g j0 p
trade-record-one0 n0 r, \* [3 `. j* W- f6 O3 j2 p1 h
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. s% S( w p- _6 N7 y3 J' d0 |- r. i# ?+ s4 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]]
: b) B. D7 Q" O4 Strade-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]& b7 i1 l7 ~* i+ f# c# ]' z( Y
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
4 @' `, \% n' a, [. Lneighbor-total
) @) t, q0 x, v;;记录该turtle的邻居节点的数目
3 `1 `+ `1 S- R _) \# rtrade-time5 @7 x: t: R4 h8 u t
;;当前发生交易的turtle的交易时间
% E3 C( {5 H8 Y1 F* O+ qappraise-give
9 b' r( H) q0 ^2 j- o3 }* E# e;;当前发生交易时给出的评价" E' \- V1 L) T* g u
appraise-receive5 Y5 m) e9 n6 H8 |. L
;;当前发生交易时收到的评价7 t( g" o$ U& S3 u1 P; X
appraise-time5 Y! _5 }- F3 @0 D2 B
;;当前发生交易时的评价时间
0 j$ f; I9 a" g; p ^; r* _# hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
~5 g( W3 D. V( |; I8 Ptrade-times-total
) R: H/ n, \" d" F; s6 m;;与当前turtle的交易总次数+ e- A. C L/ G* s
trade-money-total
/ a" h; ?3 x5 Y0 W;;与当前turtle的交易总金额: X- F, U$ r I! d6 _2 X
local-reputation+ [* Z" N* ]- `8 @8 V5 ^" G2 _
global-reputation5 u# ]. J v# G2 q3 }
credibility
9 r' W3 p: \8 c0 m7 N t9 L, X;;评价可信度,每次交易后都需要更新
) I0 p8 i1 z' d$ O& tcredibility-all; I' E0 L" A4 @0 M. |
;;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& Z9 j1 U# e' w5 v
1 W2 d% A" b% 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0.52 n% L3 }* l; ^# s5 O' W# T8 n! u
credibility-one9 B5 b! g# c( v' N$ |# 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, o6 f+ H' W: Y4 N/ T3 v$ j
global-proportion; I, H* j; M2 @- V* d1 l9 S
customer
! J% O6 P* T7 Q- ]customer-no
/ i# s: w2 E' N# U7 P9 k+ s2 o' Atrust-ok7 w; C7 o z3 f' a' y6 B
trade-record-one-len;;trade-record-one的长度4 Z9 s( U; B+ a
]3 y2 i$ ]- F* Z3 r; f
2 }% S% m' V6 `" U8 w2 E
;;setup procedure" I5 g1 ^2 ]* k# f! J3 C. ]
5 j* g6 X4 T$ J( J" l) ^to setup
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ca
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; Z, w8 k. z; U0 pinitialize-settings2 T4 n9 m3 H, N% P/ }" H/ l
" s. K& U) x8 c( \: s7 _+ E: M+ Mcrt people [setup-turtles]
4 w% z+ M6 P& ^7 s
1 p% m8 [2 |& M9 ereset-timer
: u9 S; y+ Q4 ~% m5 u- ~5 K. p& S4 q) l. L7 x: f
poll-class' r: o* d9 [; a) i5 L; x
5 i: \4 K& D6 b9 Ysetup-plots
: Y: u2 S2 x3 @9 s( m
) X3 O" u, `: T6 Ido-plots$ U& T; r8 U( P5 e5 h0 }8 S, ?
end
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2 T s% q! H0 |( [" }) I1 Dto initialize-settings
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set global-reputation-list []: l% O2 t; O" H9 N4 [$ s
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set credibility-list n-values people [0.5]
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set honest-service 03 g* x. O/ [- j% R. r
3 Y% T4 F! k4 I8 aset unhonest-service 0
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set oscillation 0/ R: T9 n5 S( F" L, B
/ x$ e% m6 h% Q7 ~+ ?) X% X* h. y) P
set rand-dynamic 09 N8 j. {) q1 T/ s! A* u8 p" W! H
end- g% U8 Y/ w/ ?: d& e
5 f* h2 I/ M7 V# E1 R+ x* Gto setup-turtles 9 p) l& [, G6 a! b1 v0 p" L- H$ i
set shape "person"
& h) u, v, E( s. xsetxy random-xcor random-ycor
0 `. \3 i1 K8 J% p+ g- Jset trade-record-one []6 w K {. v3 |2 @- N
1 O6 J! @' c4 z# E/ p! ?& eset trade-record-all n-values people [(list (? + 1) 0 0)] 2 h) q D- p4 I1 j3 l
$ s3 B. G H+ tset trade-record-current []
7 A6 R# Q$ R' R1 Uset credibility-receive []
1 M+ `1 T6 P4 a* c# c9 vset local-reputation 0.58 A" I& c" c$ E F4 f
set neighbor-total 03 _( z" y0 G4 g1 Z
set trade-times-total 08 c! n2 g% B; {3 ?
set trade-money-total 06 E, [2 o# s5 b' Z% v
set customer nobody
, |, d( u' G% Vset credibility-all n-values people [creat-credibility]
+ h# }2 ^; n. `! g4 uset credibility n-values people [-1]
# ]9 E0 l7 h) z# a- oget-color
7 R; Q6 G7 B& V. i0 P6 R
) c7 m' |! N1 U% S4 N8 Lend
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9 |" N" r" b u! v: }. Lto-report creat-credibility
# C8 x4 G! v' u; B" Wreport n-values people [0.5]
. Q2 U/ h( ]( P0 W" xend
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( C6 O: c+ g+ @' p3 | o9 q C* mto setup-plots) m" L0 ?; e) l9 g$ ~1 j
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set xmax 30
/ J7 N" ]# I- A' Q; e2 k+ V. F
1 \( N- @& }5 B. L$ rset ymax 1.0
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7 a, r: X! V7 ]! N7 N% v+ \clear-all-plots
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" k: S! m' P% \6 |& Msetup-plot1
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9 ~( A& V5 V9 {* Q7 qsetup-plot2
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% E; K" F5 q2 u& }# gsetup-plot3
6 ^! m8 q# q9 D; |6 Y Nend6 t; L7 E, Y6 ^. a
}! n$ K# _' B, g3 h
;;run time procedures9 I+ F* e; n0 ]* c9 n, ]) t
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to go
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2 L6 v* k0 Y9 T; u& v& gask turtles [do-business]3 Z0 G( }4 @& @+ G
end" G' ?* D) y2 p! _; h5 g
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to do-business $ {2 ^( Z+ m. p+ _; c S. z. s' j
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6 {4 ~; f0 I# ^ Lrt random 360
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) x7 T$ u% @) w8 f+ O9 r$ a" Dfd 1
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ifelse(other turtles-here != nobody)[; f( z8 i& {4 x, o" r6 z( i: Y
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set customer one-of other turtles-here
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3 C& _- {6 w1 n;; set [customer] of customer myself, H8 T/ p' A$ A0 p
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set [trade-record-one] of self item (([who] of customer) - 1); ~* t R. s- u5 k$ f! M: b. k
[trade-record-all]of self5 c5 h7 _; r [
;;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)
5 |+ A& m" A2 [& o+ C[trade-record-all]of customer
, \$ e A3 A# W* ^& n# ~& r/ ~: J" l9 R) _! n& X7 W. I
set [trade-record-one-len] of self length [trade-record-one] of self- X) j: @5 w1 ]3 G Z5 J
3 E5 `5 i1 q3 H; l9 b7 Oset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
3 Q1 [6 E. f5 U0 S" `. [ {;;先求i对j的信任度- T! e0 M* B2 Z% ?
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if ([trust-ok] of self); V0 L8 S: l: w6 F
;;根据i对j的信任度来决定是否与j进行交易[, V, E9 n7 u4 v, u4 E: \! j' z: [; T
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
5 C. Y3 O O7 m4 \ k& ]9 t, m1 P6 K' [
do-trade
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update-credibility-ijl1 |' |1 ^* q$ c5 @
% L" e8 G, V' l9 K) D1 Mupdate-credibility-list9 h5 K! n6 A- ], u
7 X8 I4 s6 m, W; N7 Q, n. B9 H) E1 w' }+ a' [5 q0 k
update-global-reputation-list
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8 Z; G/ N x. B. q* Gpoll-class7 `- {# Z2 O' W! C* D6 S$ c0 }
- K7 S: O, I6 a# _
get-color+ l, O5 H* h% r; {7 y' K! Z7 W$ x
9 W* H4 t0 _; Y% u2 d
]]0 Q, R* Y5 q: e8 z5 ~4 J0 \$ p7 {
0 T- n( u" X& R6 `- x% w;;如果所得的信任度满足条件,则进行交易+ P, s$ I) y9 S! {4 @
) y# L3 Z" j( w[8 j, D7 X4 m) w) q7 X( _
+ i3 y& M5 _5 W; h! P
rt random 360
4 k' B1 A3 d3 x3 Z( n$ p- H( U7 s p* m* L7 k! X
fd 19 F, M# O* k; Z: |- c
& M6 B8 l+ r+ C1 k5 S3 c7 c]: W0 j: _6 @- Y1 `* d2 M
" a1 x' i6 T' N+ N/ M
end
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to do-trust Q! K' o7 m# c# S
set trust-ok False
& o% D9 \: h' a* I8 @2 C
& _) k% ^" |3 g1 _0 Q
& C3 s3 [9 _ k7 Ylet max-trade-times 0
: ]+ _7 K2 u6 R; o' n! Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 k0 D y- P* I6 a" O/ ~let max-trade-money 0
8 b% I" c0 n! V- I, }' ?foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( I1 x0 Z6 c1 Y" klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 X3 D, I% O% K
( b, {; n+ _$ m. o5 i
% I, c$ `4 E _% {: ^
get-global-proportion m( s2 Z5 S& z- T
let trust-value
+ R* K' v/ t8 Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
, S0 j5 ~3 I: U! V7 Oif(trust-value > trade-trust-value)
9 _; l/ ]( [$ M: D[set trust-ok true]% V' E1 T% G8 S9 x4 @" c V
end
$ ?9 ]9 n3 `9 S2 H) R0 U4 R' H: M( x8 {2 r! o
to get-global-proportion( C9 `! a! B$ ?9 v& X
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 P& G6 j2 S! b4 n: j) }[set global-proportion 0]
3 [! }9 F! W: C2 g1 p7 O2 i$ H[let i 0
4 P6 V$ o, J" g$ tlet sum-money 0
2 D" ^! q$ q F" z! Q) jwhile[ i < people]
- ^. |. ~7 ~1 A9 o/ S! B j[
7 l( _/ z( |0 E8 D* qif( length (item i7 T; N! K& B9 I; I7 { v
[trade-record-all] of customer) > 3 )
( |( b/ g7 V, {' Z R7 s, Y& o+ Z$ ~% g1 G[! @& L6 z2 ^" O9 r y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))" }- R O! p/ I: R
]' a& [8 ?, j7 D
]
. K1 e. m6 m/ f4 u. p! Llet j 0
, B$ l, T1 f1 g8 W1 U+ I% s3 ulet note 0, M7 H" X! Y& J3 R
while[ j < people] x0 U$ m1 T! X
[9 B" R% Q& c! s, `8 g
if( length (item i
( c# Z0 C6 w; _/ z5 h7 G. m[trade-record-all] of customer) > 3 )! s" G# X) U/ [) U8 j
[6 x% k% J* T( `# A
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% W0 ~; C4 M9 { Z/ U( j% E. t
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 d8 |6 b/ E0 s+ P# u
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 e( r$ j: G3 u/ T6 X5 U
]+ B: ^$ h% u7 \* {3 z1 G! `* x3 k+ G& v
]
# ~/ `3 D! o) i! aset global-proportion note
$ @8 _9 u: `$ @+ x/ n8 i5 ^7 n' A] E# F `! T# f
end
3 e; O6 _7 H' }) n
A; u7 d+ n; e! Ato do-trade( n: l" I% F1 \& q
;;这个过程实际上是给双方作出评价的过程6 ]0 R( o3 Y9 F) S, x( l V; [
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( ~' M: o/ h9 A9 Y: {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: @, {5 K& V" N# ~) l0 F
set trade-record-current lput(timer) trade-record-current
7 Y: y$ k1 N4 q$ P; v* s;;评价时间. V/ F: T# u3 R: I: f& w6 ^6 s
ask myself [
) P; ]# l$ p4 [( U$ |# Oupdate-local-reputation
3 M P1 ]8 t+ T2 G7 @9 Y! mset trade-record-current lput([local-reputation] of myself) trade-record-current
. P1 w4 Z, ?+ k! C]$ b7 y* e0 s Y- M" V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& E" O8 M/ s; i& C: { G
;;将此次交易的记录加入到trade-record-one中8 p3 I+ r3 V0 w+ q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 g7 i' ?7 T6 @# h7 P; w' G
let note (item 2 trade-record-current )
- h$ z" F% l! K# E6 i! C9 @' [set trade-record-current
, k& i( N. x* H6 a( X! w(replace-item 2 trade-record-current (item 3 trade-record-current))
- D# A3 E& Z5 O$ pset trade-record-current
8 `7 c5 J8 u: t3 X(replace-item 3 trade-record-current note)
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ask customer [) O6 M* \: D, r
update-local-reputation
, o/ @. H- ~) @0 \0 y0 T5 V' O' }& Jset trade-record-current% e7 d* z! s5 t o* N
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . k! d! Z; s: N7 T
]: X$ |: y2 W7 M0 N3 u; a, W: |
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 x( v4 ?+ H4 l9 Y
; [; f) l: C- y4 j0 ^, H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 ], K4 N: ~1 v
;;将此次交易的记录加入到customer的trade-record-all中# k. n6 j9 s! p1 d2 f2 L8 Z
end9 e2 H1 q: I- k7 @# o `2 K2 X$ z5 b
7 J8 m5 K: h h) i
to update-local-reputation
# B6 ~6 q7 `5 @set [trade-record-one-len] of myself length [trade-record-one] of myself% s% L2 P6 B: R$ C
% }/ n1 D, r+ w% G
& ~0 ~2 p; m- A) y. g H;;if [trade-record-one-len] of myself > 3
/ t/ j2 n# J Q6 d0 Supdate-neighbor-total5 n( z8 n, ?# O2 `% a
;;更新邻居节点的数目,在此进行# Y1 _2 f0 \( Q2 ?
let i 3: n* Z: D" G* Z" P: i
let sum-time 0( y. |0 R0 w$ H6 m, `, [/ d
while[i < [trade-record-one-len] of myself]! @, j' @& e5 D% \3 S( q
[
/ [3 v& [: W0 t; Nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 ]1 W( r# S9 @: l1 }set i$ g5 I4 k4 |- I8 M" ~
( i + 1)
" b$ g. n0 E) ^. ]2 d3 v# R]
' o- C" a) O: w3 m9 b1 a9 l* Xlet j 3! g% {; h' C2 ?" O: [$ l# _. l
let sum-money 0# J3 }0 k/ I' z
while[j < [trade-record-one-len] of myself]4 ~8 `9 }% c# z4 y( v* g" w
[
4 }$ c. m" |1 oset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 R( h& p3 ?- I1 x: \( ^. B
set j
0 L2 X# b O* ?% s( X" O( j + 1)
+ Z$ N4 }+ B3 n( k]
8 V9 V5 z u3 x: A! ?& x( Elet k 3) B& j! y, \4 Q( M1 g. x H
let power 0 G( n2 l% B2 w
let local 08 c' B1 |# ~5 n& k! F! u8 e7 m
while [k <[trade-record-one-len] of myself]
8 E* H% X, ]5 H% F[) q2 ^* x l) ?4 f
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) - G+ Y1 e$ T2 A8 T9 r- j
set k (k + 1)
- `4 Y5 z/ j% J4 Y]* i* G, w& P% i; W: v! H
set [local-reputation] of myself (local)7 z j& M& H7 e) o% v, r
end+ e2 _( ?7 m3 X9 e4 q/ m4 P
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 T& r) X! s( G
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end, ^4 {" Z/ I, e" _
9 N. p L0 I5 \- z+ A. Pto update-credibility-ijl
* u2 s1 u) @* z) ~! |& t0 X
5 {# x1 r1 G% |9 @# R* b- W, X) G;;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。
. N1 C# `2 z- D) n( _let l 0, G0 G/ C; Q- x+ ^7 R! [* z
while[ l < people ] f# J, F5 N4 x% ^4 u
;;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, u6 C- L/ |* x
[) G" _' ^% Q% G$ y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 U( n+ B2 |# t3 Q; W- ^$ Wif (trade-record-one-j-l-len > 3), n* c, ~& I) M! n7 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" Z1 ?1 x4 }' R% r) V9 Q
let i 34 b. q: t# b4 b4 ~6 E, o1 S
let sum-time 0+ y7 Y- P& T& Z! P
while[i < trade-record-one-len]
/ J" W+ f, ~6 `/ o( l[
: v9 ? ]8 I& @. X9 r4 o- l7 zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% `# L1 B7 K' \- W, w0 j4 R
set i& \. H4 i/ @) k! `, r1 a' }) E8 f
( i + 1)
0 J7 g3 F0 L9 g6 a, _# C, \! Q5 ^5 u]
: q* j( i& O! }# S* R8 K' Llet credibility-i-j-l 0, V2 w+ F( f1 J0 C4 d- Z1 ]0 F
;;i评价(j对jl的评价)
! m0 Z) {8 C& g6 v9 P5 vlet j 34 R& |1 B" {: W# E+ M
let k 4- S( I0 \) I8 v' u- |6 P$ S
while[j < trade-record-one-len]
$ E+ y) G6 y7 p" b$ `/ F[ Z$ ^0 {8 C) }
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
5 D2 R7 a! j/ Q: c$ _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)
5 x/ J% a$ G+ q- J+ R5 Dset j
) i5 W0 Y" u3 s0 _7 L# h ?% p( j + 1)
/ e% D: c! [5 |1 B3 e* k9 M]
% N& O* q4 S( | c9 T9 ^. k' ?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 ))' E8 k' A \* H4 G, \5 f: L# U
, o8 Z) q, ?; o' j- a
4 \4 t; R- _. k) j4 ^. \9 |let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 S6 Q, W6 p( a4 p: J1 m
;;及时更新i对l的评价质量的评价: i3 ~; c' F( h& s4 h2 x# J- b
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% q5 Z; a$ O& m x N' t( cset l (l + 1)
% Z/ Y- w4 `4 L' D1 i5 \]2 |; p$ o7 U% n- v0 N3 P: N5 O
end
8 B4 }2 u. D9 z5 @/ `" C: l; B# e2 Y! _8 Z6 p
to update-credibility-list6 o4 O6 y" F! ], p+ H/ f# H+ W
let i 0
' [; n6 ^3 q$ n" G2 jwhile[i < people]
, }% G& |% m; Q; N# N; T+ ]& j4 p[! k, ]* H% Z+ v
let j 09 G8 F( m# }& y0 M3 ?% C: C0 O
let note 0
+ p9 V* ^/ u& w0 @let k 0
; d1 _/ m5 ] }* ~;;计作出过评价的邻居节点的数目$ J$ A4 Y: T7 m( p; c8 m' M
while[j < people]0 |* H, A* O# g* c. j! e" U
[
+ a) {" b# n9 H$ R9 n- iif (item j( [credibility] of turtle (i + 1)) != -1)
. X0 U3 _; ^ |7 h- H" e& s' G;;判断是否给本turtle的评价质量做出过评价的节点
) @: R2 I, Q) n3 z& U5 k0 S[set note (note + item j ([credibility]of turtle (i + 1)))
0 F$ v8 Q9 B4 Z6 x' W) r;;*(exp (-(people - 2)))/(people - 2))]
5 T; n4 `" X- s* u& b, hset k (k + 1) y; l3 t6 m, |0 t* H+ D
]
$ k9 ^% _* s; w$ `# }4 sset j (j + 1)) d7 A: @9 \+ j5 U& X
]
# Q/ X" E# t* |' a' fset note (note *(exp (- (1 / k)))/ k)5 ]# Y6 P. a$ w! N4 U) ]
set credibility-list (replace-item i credibility-list note)
! h7 t- n- I& T) l+ J4 o$ sset i (i + 1)# X) i2 A+ D$ S/ z) R( d& c! R
] a$ R* C9 o2 \: K* V
end# T5 }2 k% r3 t5 [$ k, g
1 ]: j- a5 n2 n+ q$ W% |) p5 ito update-global-reputation-list2 }) D0 c. R* }; j
let j 0
) j1 Y; Z6 @( l" z- Xwhile[j < people]' `8 A3 ?* q+ z( D- f
[
4 ?- n6 i2 V. M: n4 Dlet new 08 |3 Q' u( ^: G" b/ ?: m
;;暂存新的一个全局声誉
\' E8 `3 b2 ?4 V* V( E5 [8 F4 Glet i 0
: L4 ?+ L2 j5 K/ n# l4 M8 g! u6 ^2 blet sum-money 0
3 ^8 E0 v1 h; p- M$ `) hlet credibility-money 0! E! m% O2 [' a' @. C
while [i < people]
: z1 ?% e5 Y& z8 \7 a; m[
' h C, K/ V! L! Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); [& q! D' @2 e K8 O R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 e1 W( b' j1 Z9 Y: D3 o- K# u9 O
set i (i + 1)
) C u. p2 m- D+ D" Z% d" w]
* I5 M; I4 c: d2 l4 @1 `. ilet k 0, n* r8 W5 p% ^$ O- d- K
let new1 08 L0 k7 Q- G* i: O2 ^8 }1 C
while [k < people]" R) _8 {5 Z" K9 M* }
[
/ I/ [9 q; [. \6 V, Z5 R: j& rset 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)
/ A z; `1 p& X# B4 uset k (k + 1)
; B5 d' c- k1 `% y]: l! t2 J# ]% r \, e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 e6 m/ ^4 p$ G& vset global-reputation-list (replace-item j global-reputation-list new)
n( g# r# l5 z" ]: b" P6 Rset j (j + 1)5 Y6 K* V6 [" e% y' J# r
]
+ J: r7 ]9 b8 a9 k2 ~4 Hend
5 T+ m- o* n1 B' d0 V- E% o3 o
6 k, e1 W" Z- f5 O- O6 B* a f. x# G1 A
0 M" h1 {4 R/ N0 i* Y9 Hto get-color: S: h+ r! r; U+ G& `
9 J; q' g) L7 j6 o" Lset color blue) v! C, S& _) C _1 F6 C
end& W1 s* T9 ]9 q7 z
2 p9 Y$ n& w- ^! uto poll-class; D8 C" e; X N: k
end" y8 _6 {5 b/ l. E: n$ ~- J
; f4 `% h6 g! b) g* Tto setup-plot1
8 f6 u; r1 G' O3 l) _1 E' n
' d+ }. v. k% N) C2 `set-current-plot "Trends-of-Local-reputation"+ ^7 w+ A* T5 a: `9 k* e
/ O0 F$ p: D9 L2 k# p1 j4 M, J
set-plot-x-range 0 xmax
1 s! M$ r; U% N$ Q8 s* U. q# ^
7 Q" C3 _+ }9 v9 w2 R6 P/ cset-plot-y-range 0.0 ymax
9 f6 |" J2 B gend
6 K4 R, j3 `; a- O' U% S0 Z1 Z1 i! S
7 t( L& A8 W/ L4 Q/ Q% Cto setup-plot22 f( |* ^ b# }
8 d7 k6 j* v3 i( Zset-current-plot "Trends-of-global-reputation"
6 S/ y3 e' n# u& V- t' t' q; J2 x# R3 D4 A
set-plot-x-range 0 xmax
0 B8 u* {* x: }# k( ?! V( U0 b6 h q; D+ j! {
set-plot-y-range 0.0 ymax2 C; w# V7 [5 y" H3 `1 {
end6 x4 |# ]7 Y' \% w: }8 K6 k
_' C3 C5 @0 o3 R% `to setup-plot3
) O" g9 f, v D- z" L1 o) n: Z6 }7 n( B( x
set-current-plot "Trends-of-credibility"' u q c1 f0 e
) F4 ?* F$ l: _$ M' ]' Zset-plot-x-range 0 xmax4 a8 [- {/ G( ]- w% ~3 F- A) g
) t# A: p2 G n: L$ f9 h3 c
set-plot-y-range 0.0 ymax# q+ e+ ~: m+ f. L9 C9 l" r( y o2 h
end# o; y: P$ X4 s. I1 ~) W6 K2 ~ G
$ _1 R G K- y: \! v3 rto do-plots
' A' K# k" J( U) q3 Nset-current-plot "Trends-of-Local-reputation"
2 }- w y) O$ x- X p& Oset-current-plot-pen "Honest service"
9 [. ?6 d$ e' g8 `! t5 Oend
, s* g! d6 V5 L" f: [( y9 R9 o* ~" U" \+ x4 i/ o7 g7 I
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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