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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& o# D* |! }& Pglobals[8 P( `% O7 A4 p9 k( a0 Y" x
xmax& I# p% K1 {3 ?, \4 E# E( |& _
ymax2 Y9 d6 z& R& J4 S; @9 F- O: e3 n
global-reputation-list
# ~% M( r$ \0 C
1 `" @" P7 }# V" G;;每一个turtle的全局声誉都存在此LIST中 `( I( X5 }* {% A' S6 O
credibility-list
* s, E1 W. P6 E9 t;;每一个turtle的评价可信度
9 H8 `8 F$ d: Y8 chonest-service L3 i1 @$ R6 J6 E) m
unhonest-service
6 S. g5 ]# D& ?* N, aoscillation
7 v1 k, G) b7 G9 z7 Erand-dynamic& m4 e d6 K! q) O
]
7 f. ^0 h" {2 p& n8 c9 J6 V
# p, Z |- T6 G: ?% |% Fturtles-own[) k0 F7 a9 { {
trade-record-all' q1 T& t/ N: w' i
;;a list of lists,由trade-record-one组成5 y: o* v$ t* l0 v
trade-record-one; M+ j) |: u4 t9 | _5 }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
o* e4 G/ D3 I4 C8 h& S
" g1 F; J3 y4 A+ o9 k9 };;[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]]% _+ q3 M9 j4 W
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]- x. C5 J4 R8 V9 K' ~7 v
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
: R) O* ?+ f* J$ q# P" b( Oneighbor-total$ P7 Y7 c% ~4 |2 m1 l* k& B
;;记录该turtle的邻居节点的数目
5 b3 ^# R2 N3 h' H9 @& ~' ~trade-time6 f) b$ p$ D! L: t4 r
;;当前发生交易的turtle的交易时间
6 T' b) s+ I" R- Sappraise-give/ a7 v6 }. D9 N) C) b9 O5 F
;;当前发生交易时给出的评价6 N" H- {: z4 M$ x9 J, o9 ]
appraise-receive
$ n4 o4 u) O" k4 l( Z: Q& F;;当前发生交易时收到的评价
. N) g4 }( z/ A, a; a# [ ]$ nappraise-time
" z: V+ [7 [! @! U1 z: k- n4 ~;;当前发生交易时的评价时间- U4 w5 C% A4 B
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* w9 }- S0 M5 Htrade-times-total
; H( O% k$ g' x5 t, l;;与当前turtle的交易总次数' N0 X8 { f! }7 z1 |
trade-money-total
" Q6 L& u! P3 n: U0 i& j& a;;与当前turtle的交易总金额* `8 R1 C( J0 s5 Y3 j4 @
local-reputation
, y( N- } _# P: w" W Kglobal-reputation
) S$ G$ D% O" q5 \: V7 ], i/ Lcredibility
5 |2 j: X3 }1 S+ g6 ^/ u$ l;;评价可信度,每次交易后都需要更新% ^( u q, |! O
credibility-all+ [+ K- k$ w# p
;;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" ^+ ^2 n B/ j, h9 @9 r
6 D1 B3 C& X2 A" |4 k' K;;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0.51 ?1 O; P) V/ l. L. B/ W* W
credibility-one5 G# ?3 x# v$ F! r4 I
;;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0 v3 b1 V, H5 U/ h" x$ I
global-proportion
: w) n3 o4 g% Y7 ycustomer) x( p! r% v1 z4 Y8 [; Q! r, J
customer-no
- u# B, y- r" q- L! C2 mtrust-ok. [* j* O; X1 S1 t) ^3 y- D5 Z
trade-record-one-len;;trade-record-one的长度/ Z" g4 B6 I/ S
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! C; Q5 D: Q6 X* Y7 E
;;setup procedure/ a+ q. `. A L! q5 E
( D" q2 g( r$ z2 m* h7 [& T6 _to setup- ?% C4 ~2 j0 R7 H# O4 l h' g& ]
7 v% ?- r0 w. x: L+ r; v
ca
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1 l+ G- M% v2 y& u2 uinitialize-settings
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crt people [setup-turtles]
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reset-timer' D: ~' _0 j1 ^0 O3 [8 d& y4 g7 t
# `3 N. s3 Q; i" M2 ?poll-class
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setup-plots8 B3 m- x6 M- x" h/ { E8 x6 e" W
2 H, M; }% C: A/ _0 ddo-plots
3 @' k3 @: Y$ ~9 l" uend
- { s1 Q9 E( v$ y" ^
( R V6 W4 A% F+ ?3 |, }to initialize-settings
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% b# _. A0 q" Iset global-reputation-list []
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! j% i, ?8 U: q6 K* l; ?' qset credibility-list n-values people [0.5], K J/ u( m# K) h1 l* \
1 r2 x/ C9 Y. p! `' {. w& Qset honest-service 0, `# Q# M/ S+ M K. ]# |
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set unhonest-service 0
7 I# j P4 b" U4 P6 {6 O
$ }( W5 o: R Qset oscillation 0 B2 t: v, _; U+ ~1 o, ?
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set rand-dynamic 0" L0 m, c# `: t" q- x* |
end/ f/ l4 z% A; e4 I' b1 [
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to setup-turtles
. m/ m2 B& T1 Y1 Y- }8 Q) z% mset shape "person"
6 G# Q; ^7 j5 J; ]5 Tsetxy random-xcor random-ycor
U; C% y2 s7 L# Z9 }( Nset trade-record-one []. f- {$ u+ ]7 x
" r' i4 J5 T) _7 E0 Oset trade-record-all n-values people [(list (? + 1) 0 0)]
9 F+ ^2 i- q3 B' U" z7 z& {1 k
9 y7 K0 i3 _: Z) J- r6 T8 Q: C+ nset trade-record-current []. J L7 f3 l& J0 a8 E4 Y F0 ]
set credibility-receive []
M3 P- j6 a% X4 t) }* @. lset local-reputation 0.5
0 K7 K. O6 {! ^% o: _$ ]8 Eset neighbor-total 0
`! l* d2 V2 X* s! H- @set trade-times-total 0
& n# n Z1 L7 r7 hset trade-money-total 00 D5 J3 |+ Y! P$ f" f* x
set customer nobody2 C& w- s( u/ E4 \6 L. z
set credibility-all n-values people [creat-credibility]3 A& q( E, Y- I v$ f
set credibility n-values people [-1]
5 ^' l+ o( ^1 B' ?9 {# Y9 Yget-color0 ~$ i) o4 @2 w" e5 j' m9 \( A
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end/ D) P4 }+ H, F9 Y9 U) j
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to-report creat-credibility% ]$ c& p( i7 B+ Y1 q' v
report n-values people [0.5]; \$ b0 A* s. l3 v2 G2 j
end
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! Q6 y8 j0 G. Q8 @) M' L) \' H+ qto setup-plots
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, ^% e: ^) a, e; l9 W# I& J6 Wset xmax 30
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7 O4 \9 E# B: \7 ?+ Yset ymax 1.0
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clear-all-plots
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setup-plot1& j* i% q. A% x: g$ x/ |6 ?
! z' H" t* k# x: b6 a/ E3 dsetup-plot2
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: t* z5 K. U/ |; Ssetup-plot3
+ Z8 \' h% i+ Hend
) ~" x4 }3 G3 ~0 b7 O' X; p( E. G6 m& @3 e
;;run time procedures
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. }8 s1 U5 b9 U/ X. \; tto go% H( Y( L1 j- T. L
1 D) N; r; ?7 ^
ask turtles [do-business]1 c( L* V4 O/ O0 `
end
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( n0 V! o1 p) O/ d7 ~8 ~to do-business
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( g- w! ^2 }* @+ i7 h, Ert random 360
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fd 14 r+ ?5 i3 D: i) ]5 i6 e
4 }0 d2 ^; {- x) {8 }: _5 b! Rifelse(other turtles-here != nobody)[( u8 K g* ^0 x+ T. R
7 t( y6 }0 ]3 \, Q9 eset customer one-of other turtles-here' q- `. X- \0 u% w2 I
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
. [5 |3 O) k8 w" X: g8 G; q[trade-record-all]of self
: z1 {' Q, w9 l, t- | f1 S;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 m9 a' B$ H' x0 j
* B. {9 L s5 y+ U, _, Iset [trade-record-one] of customer item (([who] of self) - 1)
/ [- a u. R- Y7 L9 M1 B$ E* C5 o S4 |[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
5 \: N* Q% Y5 t" z9 G7 i
# E# x" S# R! ?" _% v# F8 ~% ]9 {set trade-record-current( list (timer) (random money-upper-limit))- |5 ]. W( S8 S% [
" {* @; i n! N; D a4 G4 [ask self [do-trust]
: {/ e1 g( a+ N$ F;;先求i对j的信任度& \# X7 V0 d1 j4 r
, d( a5 C0 J* D5 `/ Tif ([trust-ok] of self)# R ]: Z7 j" x) \8 b
;;根据i对j的信任度来决定是否与j进行交易[0 S7 e6 Y. g2 m h* Y5 D' b
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
1 t) B) p; [& @ O5 m" f/ ?7 ?/ ]6 F2 z8 j# l5 P
do-trade$ d7 f' b, V$ Z# J3 V
9 \" G. y( ?9 m
update-credibility-ijl- x$ w S& H( o: t
- w$ k% r* V: W) K* m/ G
update-credibility-list% d# O# j) o! y1 Y! j
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2 ~+ `0 g3 ~) s# G2 U2 @( P: l
update-global-reputation-list
t' X/ V+ }" w( s) F+ D) ~* l( |2 y1 i; e& e
poll-class
& V. z3 n( G$ p
) r0 ~0 `" n8 hget-color
* \+ N4 ?3 R% t; s! \- V* O; ^2 @) J* P; x$ h( T
]]
s# l" N% P( ?" Y# T* @, F! E3 f: U* \, H( V3 I
;;如果所得的信任度满足条件,则进行交易
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! ^9 X& E6 h1 ]" w[
% m5 F- w# q" v8 v f! T5 T- N) N# _2 x" S J6 w
rt random 360
" t* w, t% q# e; V& x7 x7 `
" S8 H& p2 l; L! @$ _+ Xfd 11 A9 |& a( M3 ]5 U* D _7 v
1 F( m% u2 D- o
]6 }3 E7 T4 O( F5 v) ?) o. _* J
1 [, l2 f: v ^% B [. O' E' Jend1 ^" ?; w7 j1 F( e- F+ A* A4 C
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to do-trust 6 ^# X0 v0 ]- s, q" ]# l; l
set trust-ok False
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4 a+ W8 I; [" J6 y9 hlet max-trade-times 0$ h) g- M2 o) Y7 I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# B0 g; @; X) y2 @! c% s, J
let max-trade-money 0; A) d% d3 C9 k0 I: F) V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 x; \$ x; e. m1 X6 L# Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& |; P. K# J8 p8 e' o7 m: S) R
7 t& y5 p0 k" U$ _+ F! t9 k. O' ~" F: l% |8 W* ^
get-global-proportion* J7 f5 B, n4 }
let trust-value" G" r, w5 t) l. P: C9 q
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
: j0 T1 v* l ]$ H8 kif(trust-value > trade-trust-value)7 y) l/ I# n5 Y
[set trust-ok true]0 V1 J) \' I& V- ?3 L
end
) v! Z" n {* l1 `5 `% `( Z9 t, p7 m* h6 ] O( ~4 y$ z
to get-global-proportion
I/ b: e7 E0 b( o1 Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 N" |4 K/ p# G& d[set global-proportion 0]
" {; F' X+ [4 B! G) d7 X[let i 0
* S8 c- N% I9 p, Elet sum-money 0- ~& I e- J' ], c
while[ i < people]
7 M. I' ^0 T; |[
# I$ G" ~% _5 v- A% lif( length (item i
& X9 J8 Z) a: P/ w9 I& v, ?2 F. O[trade-record-all] of customer) > 3 )- }1 @* Y2 g, p, G. V1 {* S: T% }3 i9 x6 ?
[
/ R* X; a) |; J* n5 `set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 Z9 a9 t0 ?8 @6 A]
8 S( B# \- M2 f* Q/ ^% []* J5 |& W0 f' ?' O- j4 g& U
let j 0
3 _2 x6 l; A8 z( N, X0 N$ n. |8 ?8 klet note 07 m9 ~! n3 a' Y; a3 f
while[ j < people]
1 B. _& t, o9 J/ W; x# o[
- N! ^3 ^) d/ W+ e9 ~' _* z. Jif( length (item i
4 P1 M; G5 |& }: M# E" x[trade-record-all] of customer) > 3 )
% w ?& C: m3 D[
5 o! E) Z( B. c7 Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 a) E. G2 s9 u5 ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# ~# a5 Q q2 F, q C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( v5 r7 s9 C" k]+ m% _& i( z- U$ e# h6 U% a
]
5 s0 f# L- L3 U0 _! F( lset global-proportion note
4 |( Q' g1 E* U& a]3 _2 p$ O& V5 L6 J; t9 @
end
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to do-trade
% k8 s5 {) K& M' o3 a" P, c) Z& ];;这个过程实际上是给双方作出评价的过程3 r i d- ]! g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* z5 n# j* d+ }- k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 z8 b4 E4 q X; \" W$ ?set trade-record-current lput(timer) trade-record-current
( X6 d* r6 E% d6 |6 e;;评价时间
i4 c2 g5 ? K8 I1 yask myself [
* u2 ?5 V" J0 f2 j9 q9 Pupdate-local-reputation
6 L" c: d2 T( k+ a: S ^* m7 e! Wset trade-record-current lput([local-reputation] of myself) trade-record-current
r$ B4 z/ C; o ?# u] V5 r1 \) R% [7 X5 `" C9 n- I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' y# S1 `1 \2 S9 {;;将此次交易的记录加入到trade-record-one中
( L2 u/ h9 B9 e, Mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' ^# c8 u% L' D9 ulet note (item 2 trade-record-current )% l- ^+ ?' j2 e: A3 m% M( p% h
set trade-record-current" H2 `% n' f8 {$ n- @0 D, m% P- [9 {8 R
(replace-item 2 trade-record-current (item 3 trade-record-current))$ C6 [( y- e9 X
set trade-record-current1 j. q1 P0 o! ?; e8 J/ {& D+ E
(replace-item 3 trade-record-current note)
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: U+ F9 {9 X* A
ask customer [9 } a; {1 X3 J2 D' q4 n
update-local-reputation
) @- ]* K* o, e0 Pset trade-record-current
6 S2 J9 Z, G/ R% I$ o1 L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + [7 Y0 J1 T# q+ N- j$ Q/ g
]" l) ~: Z; n/ D
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% }5 E( N, a/ a3 R$ \! N! Y3 F6 S* S
; ?6 P# L9 h9 d% z& F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ R( I! b) r. p# A3 ^;;将此次交易的记录加入到customer的trade-record-all中& |, Q5 M0 e( G _7 ~0 [( [' k
end
. U2 F8 ]) M$ x! \
3 X& v* t+ d& _* X: U- oto update-local-reputation) M3 K5 I L6 ]8 ^' z q" ]- ^
set [trade-record-one-len] of myself length [trade-record-one] of myself
& e# \- V- a. a! t) n2 p* n, y( ~
R+ |. J' M3 P; [8 i3 t
9 |$ ]) K, W: T& ?;;if [trade-record-one-len] of myself > 3 / C+ L* a+ [4 h1 J- D% x3 _& [- J" a
update-neighbor-total
# r* K9 F* {3 r# l$ x6 X;;更新邻居节点的数目,在此进行! V+ I4 O" i) `; o5 |7 a2 a p( T
let i 3
( V& @. U$ l' B* b8 olet sum-time 0, X$ x; g( y' m5 g* m
while[i < [trade-record-one-len] of myself]
' s- A* T/ |2 ?( l5 l# [[
; O- @) \- ?& Nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; |' ?1 p5 l. k- Sset i/ Z( w. Q- i* r# n. V& H
( i + 1)8 g$ I# j% d3 E: ^3 Q
]
' h- K1 G3 o' [- X/ hlet j 3
8 W$ t" v1 D" B) h1 n& U' Zlet sum-money 0. q# I. }8 ^3 K+ L
while[j < [trade-record-one-len] of myself], a: |, i' G7 x8 ~ L
[
& J. F( D5 t- b% S$ F hset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) }' U5 D( e; P: W- lset j3 R/ B8 X& D9 d9 v' |
( j + 1)
+ \2 c0 a8 z5 a3 g$ f' }$ G) u]
0 f/ y- U( z7 ^0 Z9 V# t3 `let k 3
5 D+ X/ n5 y+ ?2 a& A$ a, Ylet power 0
- O- V& B, y9 E$ {# {let local 0
1 P) y) o6 d. U4 w. C) Xwhile [k <[trade-record-one-len] of myself]2 C3 |( l3 F3 J$ T8 G
[
3 ^: n7 p' T8 }; Z& o) }* gset 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) & D, g- @) q1 K) u
set k (k + 1)9 E; _4 k6 g" g6 X4 y
]
3 _" U) A d/ i- S$ _- kset [local-reputation] of myself (local)4 ~5 p) I4 Z5 W0 A0 s
end
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' j. E& D1 P+ ^- R+ {2 p1 oto update-neighbor-total
4 R4 _ l$ k! _/ I5 W
( J# A1 k" F( f5 Cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 A" r) X. |$ E5 X* Y) \$ e
+ D, G' t4 x& y I; [5 W2 n$ G
9 e) B2 y" z$ t8 ~# W; xend
( R K& D) t; y+ i# s: K, ]2 C# h: ~
to update-credibility-ijl ; C' D; Y) s& i: K: `* `
. E8 K8 l" y1 B' N! S4 l& E9 Z6 k2 \;;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。) [+ K5 k! {! L! l
let l 0% W: [/ I$ `! |; I& {
while[ l < people ]
' v! x6 D! w X" t/ {: Q. z;;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$ k/ H% G5 w M+ b, `, ~6 y
[" H/ n8 `7 G3 Q) Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 a! D. X& j2 d" m& W$ \' _
if (trade-record-one-j-l-len > 3)& ^! B; }; R4 I- K+ S6 n
[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
: Y% B* i, Y/ j; i3 K M7 y$ ]let i 3
8 c2 ?. b3 M7 L& clet sum-time 0
5 O9 {+ d$ K5 t b; ?while[i < trade-record-one-len]
8 m4 ?! t W2 G) l2 ?[
; S8 O3 Q& s. t& z' t/ b8 Sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& a& C5 {0 [1 f2 t Z5 xset i+ W# I7 {. u, W% G8 I+ o7 B j
( i + 1)
3 C, X" H. m( @7 v/ `: i8 j9 z]
; U* I# i* P F& G# Y! [9 llet credibility-i-j-l 04 V4 @3 N: E8 {8 O. C7 x
;;i评价(j对jl的评价)" H8 Y7 {1 b( y9 b0 I
let j 3
) s* I% e4 e% J, Llet k 4; A& y" S# {7 }2 Q, ]+ k! L; }
while[j < trade-record-one-len]
! q1 Q9 m4 L2 f' d( F[% }) |; i+ B/ O6 t9 L# K
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
! X% _" s- Z3 l {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)! k! f4 | d2 k) x
set j
6 J4 R! N9 r8 u- C- a( j + 1)
1 S6 z4 u6 ^. u! I]
' v' b1 n1 ~# o- b2 D) Xset [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 ))
7 \4 ]0 a1 `8 S9 v0 C
% C! c1 I2 \) A% @
8 F8 V! M9 l( a& m6 flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( t. T, x6 S7 C+ x# m1 e g6 Y3 `" `
;;及时更新i对l的评价质量的评价: z# W5 @6 J7 P; U: c" e* j# ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 B* T& p2 M$ o( m7 C: y
set l (l + 1)
4 I3 o# t5 `' E' C7 C]3 ^5 r) {/ d+ t& }
end
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to update-credibility-list9 R1 c% F4 i+ u. h: v2 @7 t! A
let i 0( g @3 z7 ?% w
while[i < people]
% N# ?+ a) T/ w[, u# A6 b J8 G6 z
let j 06 m3 ] V+ E) {4 l: k) {9 s0 e
let note 0
& V2 v% v, j8 n d" _3 X' Dlet k 0, r1 }9 d3 u( A+ ]/ I
;;计作出过评价的邻居节点的数目
' A/ l! j5 r* |" _& i+ Ywhile[j < people]7 q& ~6 q3 r' E2 ~+ J/ M6 _2 V) \
[, I; p2 Y- e: z* h! a$ X
if (item j( [credibility] of turtle (i + 1)) != -1); F Y, q- k8 _) C$ O1 r" |
;;判断是否给本turtle的评价质量做出过评价的节点' o( j5 h( b1 n) S
[set note (note + item j ([credibility]of turtle (i + 1)))
$ |# R: G0 m+ \8 t;;*(exp (-(people - 2)))/(people - 2))]
4 I6 P& L! x. @8 n# |set k (k + 1)
, a8 ~' s* p7 w]
7 a6 c; e, b0 A4 W2 `set j (j + 1)5 ^! S% E: X; X ~
]5 K$ v8 W4 M+ ~+ U s3 y
set note (note *(exp (- (1 / k)))/ k)
2 E" }& E+ e+ P& L, K# Oset credibility-list (replace-item i credibility-list note)0 ] R2 K! w, G& y
set i (i + 1)0 H" t# ?6 x/ E0 _) V' O1 t' r( J$ [
]
3 _$ V j/ w7 X nend
3 L& S4 k0 t6 |2 l. p4 M2 _1 B; j/ \5 X6 Z
to update-global-reputation-list/ E2 J n# B" \# e
let j 0
1 T @- S) b* _ ?7 N$ f! Hwhile[j < people]
+ y+ E7 [! E! O$ }& u2 W[# b1 w6 s; {1 c* l6 N
let new 0
( ^6 q; }, o O9 W/ D$ u5 T! q3 X G;;暂存新的一个全局声誉
4 J( _5 x& N4 ]2 N( Q3 q; R9 ]let i 0* i! `7 ^ F8 u: c/ L& M0 ~
let sum-money 0
$ X9 _1 @+ [1 U- o$ Klet credibility-money 0' W/ W s- ?0 P4 m3 M) R. o7 n
while [i < people]0 K. j% ] d4 i) p2 @' `5 `; [
[7 G. ]5 L% p0 [3 W% W0 K
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! d( _0 a5 p! n) _* G8 F9 eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" h' O. w* P8 m: i0 e. H5 I+ l, bset i (i + 1)
- l5 D9 \6 k3 A2 v6 X+ ^' c]
' z9 O3 ^! [/ v: T. m% e5 d$ Ylet k 0 J( A5 c% G% Q, F
let new1 02 R: U- o7 Z* @
while [k < people]
8 h' J6 M" i5 o M[
: p1 M- H: q) d$ T: ?0 ?& Fset 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)
7 _- V8 }9 N" b* Sset k (k + 1)% {! a6 X; H2 B; t
]8 Y% O# S; |5 y3 C* @& K' q: A; z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 U" _- B. L4 C8 T/ `1 }7 Iset global-reputation-list (replace-item j global-reputation-list new)
; R' P# @3 ?3 M( F: z" Nset j (j + 1)
3 u3 B/ C7 B8 a) ?! l]) P: D* R1 f- Z, Y6 b3 N1 J
end
/ s8 W+ g m) H7 @/ \+ P6 N; y' U# H' t+ K0 a$ s
4 F% Y, ~: v# V1 b
" _0 Z0 P1 ^4 M \/ {& Lto get-color0 s8 t, R# t& w) M" L
; ^! d# o! Q, q/ @/ Z) f9 P
set color blue. Z7 A& ~1 I' U' I$ ~6 w4 m4 { a
end
1 v$ C) \9 `* a" i1 I
: v9 L: h/ G0 P+ K7 a# Gto poll-class: I8 k2 i( U! Q# s0 o
end! o9 z n3 B3 `0 [3 P8 }6 X& U
2 c+ g6 ]" G7 w$ g/ W/ V
to setup-plot1. |5 I& O1 f2 O, R
" g7 ]& }8 H8 ~6 D3 K( I4 I# bset-current-plot "Trends-of-Local-reputation"
; S' a$ r2 k/ z4 D
" W2 A0 L( P; m# ]+ u) mset-plot-x-range 0 xmax
4 i8 v! w& i# s4 f* j8 @8 V$ I
$ W5 [4 z$ S a% ~, E9 Z% Wset-plot-y-range 0.0 ymax
& T4 l2 n! g8 j8 Y1 |# H0 Iend
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to setup-plot27 `5 K) B2 o& |: F
2 N; P- b1 y, I& Tset-current-plot "Trends-of-global-reputation"
1 _9 j- v* C+ ^/ B5 E5 X) a& Z5 l0 ^; [3 ~0 E# O9 s
set-plot-x-range 0 xmax
; Q' {9 [; a" {& [( W0 h8 M3 Z- e' x- n Y- \6 W) |
set-plot-y-range 0.0 ymax' U- D# i \* }) w5 w
end; e% u1 T' B0 j# x( f' R; f2 ?0 t5 i
3 A) s1 k* ^5 j' H! c1 k! bto setup-plot3
j6 v7 k$ m' C' a, {9 m9 d* s8 Z- p" ?. h! d
set-current-plot "Trends-of-credibility"
( C2 ]; w2 p6 _
/ M) E) k, w2 \( Y" q" T) ~! G( Q5 wset-plot-x-range 0 xmax+ P* P+ i, i) n( {/ T
" c2 [- `2 |7 C0 _ @set-plot-y-range 0.0 ymax
! E" q/ l2 y2 r$ V/ U/ K! ^; {: nend; s# x% C- c6 p5 Y+ R
1 J2 p/ _+ v M/ [2 d# S tto do-plots; b' s$ U% N6 ]( q! D' P
set-current-plot "Trends-of-Local-reputation"' V" y$ Z5 M/ _9 Z6 ?, [
set-current-plot-pen "Honest service"
4 O, c/ n4 n! q7 V) r: _/ Jend+ P7 W. F/ g& O& b
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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