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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+ D3 H; h( L7 T
globals[( `& d! ], m9 Z" I
xmax- d0 m/ O# A: ~; a9 m# A
ymax
! w' z" Y$ b1 H5 F# Pglobal-reputation-list2 h0 L& N! Q1 ^
6 {: I) N3 W2 H) |6 [;;每一个turtle的全局声誉都存在此LIST中+ d- X- q0 t+ z& B/ \' U# a
credibility-list
2 `0 @% n! l; k9 N. k/ A2 e9 M;;每一个turtle的评价可信度- U5 { \2 }- N* j0 n
honest-service
1 h: S$ I4 I; W: f* ^) `( Y7 ~2 Uunhonest-service
- i. z1 d4 b- x/ x9 V/ Xoscillation
' R1 @7 W1 G; h! i. H% Lrand-dynamic2 h; y) Z+ b$ _3 @' R) u
]( q8 G3 g4 C7 z
' p) m; \8 v: E8 u! W& F B$ V$ k8 Aturtles-own[
+ ~. z4 U+ s' z. ?$ K2 ntrade-record-all0 G' N0 W" {+ ~! `" F
;;a list of lists,由trade-record-one组成8 n2 \5 o/ J- {1 o/ V
trade-record-one
. |4 p" {1 u4 Q7 i! v& n9 w/ M;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# ~" n' }2 ^" B: `0 w( ]
* ~' @. v' g) E2 C;;[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]]
* `% t6 J0 ^1 |# w7 ]2 ?4 @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]
% z0 C" {, V( ecredibility-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% G7 J3 c7 P, u9 m# p9 Z
neighbor-total
5 S. H0 ?/ }/ s- m0 _2 _;;记录该turtle的邻居节点的数目
# |" l# z9 v2 J* P) dtrade-time
4 e1 J' |, F( b1 f;;当前发生交易的turtle的交易时间
+ A" h, P! Q1 A: Z) X6 jappraise-give
. x7 _. q! y I, u% ?4 N! h;;当前发生交易时给出的评价9 Q# A" s" R7 Z1 N3 V1 T) N
appraise-receive8 u A& u& ?1 @3 w3 t Y
;;当前发生交易时收到的评价* L7 ?! C' w1 E! c- I# u2 ?
appraise-time
# w9 D- D( S" C- ?( Q1 R% _+ ];;当前发生交易时的评价时间$ ~4 x5 d- u$ j* d9 v- q* t9 J# d! c
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: }& E. O4 K1 [9 O, G/ x
trade-times-total
/ V& |1 S% y6 N4 D' _- g$ ?/ E1 O;;与当前turtle的交易总次数6 e6 S& z/ \$ \8 M5 F1 h
trade-money-total
0 g/ ^( X0 x5 A1 ]( v" a" |;;与当前turtle的交易总金额6 w; g" t2 \' }; n* d1 r. U
local-reputation% w: X5 e6 b" p% ?% g
global-reputation. l8 O B- O3 _2 c
credibility" @2 q7 f8 l& x- B" {- j2 C9 ~4 p
;;评价可信度,每次交易后都需要更新
. Z* d7 |2 F* N0 u+ z0 kcredibility-all
; P/ d! D) ]" k;;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" w( J; I' k& z b% Y
" k0 f" |0 }5 q5 n
;;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0.50 s8 D' S3 c+ E+ P7 ?3 Y P4 f! n
credibility-one
+ O+ O( t( @/ q: f4 u8 Q3 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) R2 |: D+ }+ ], m/ o
global-proportion
' f4 ?7 i$ d. @$ N. O: _3 Lcustomer
$ ?' K- e; e) Icustomer-no. a& l4 W! k# @& @& O
trust-ok, S- s# ], `% {
trade-record-one-len;;trade-record-one的长度
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; d3 u. @: [8 v4 U7 j# x. _0 r7 f, B+ j. f: N
;;setup procedure5 j4 J# b5 Y/ q7 B
! h" L2 t4 m U2 [4 I
to setup
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/ Y' i2 l: |; g& l& |# }$ m, Jca
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8 e( L- _( w7 C8 y6 @0 Ginitialize-settings
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3 _; W: [4 O0 ?' Z- L. Mcrt people [setup-turtles]+ |" U l* m6 n; L/ \) A% m
5 \' C# t f4 S' }7 }7 ereset-timer) }! w. \' f9 t7 N
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poll-class L$ f( u& F; t* u6 i
, K& F7 M( W4 y; B8 T6 @# i
setup-plots! V4 J+ Y4 U8 W2 W0 _
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do-plots- F& s8 B- K' w% g
end- k2 f, i, _( R# p& I+ n8 N
# t( w; U _2 i: `9 |" W# nto initialize-settings
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) ?3 X9 Y) z) Cset global-reputation-list []6 s, r& K: m- z. z1 B* C
% X& ~# Z2 ]8 h- O$ U5 d
set credibility-list n-values people [0.5]- b0 \. v& e z
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set honest-service 0
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5 c& o9 C* |) n! yset unhonest-service 0
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5 E- G3 X: h9 \& r3 }' D/ Tset oscillation 0
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set rand-dynamic 0
. p' Q. l7 W3 H9 v; }end
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to setup-turtles - A6 N. m/ t( f" O
set shape "person"
" }9 M7 M$ y# {$ |0 T4 c" x- Esetxy random-xcor random-ycor2 e' D4 d: W: C; L3 O
set trade-record-one []
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" a3 r' j: n" B9 Vset trade-record-all n-values people [(list (? + 1) 0 0)] 8 U' j+ Z, F4 r2 r; L7 ^! v
% h" h2 j8 ?% U( \& } F
set trade-record-current []! X7 ] i7 T& D* u0 {9 f. j8 C
set credibility-receive []6 y t9 T; Q7 g) F& C( W7 u
set local-reputation 0.5/ {4 B% z! Q# g
set neighbor-total 0: z# d2 v6 w) q9 I" Z
set trade-times-total 0
( n# W; r, ?$ [$ i( lset trade-money-total 0+ `. q2 z9 F# a" y( z& D
set customer nobody p& `1 }! ]6 a+ z8 N; ]
set credibility-all n-values people [creat-credibility]" j; n# l6 Z: ?; Z1 Y
set credibility n-values people [-1]
a0 V9 B3 S/ h' l' ?& Pget-color8 l) B4 ]: K; |$ H; o% O( R0 v( L
; o3 N% a" E0 g* o
end$ l1 j3 y. ] E: k5 \ \) t
) `/ I0 q/ ]" \! Lto-report creat-credibility+ s# C. l6 ^" X/ ^: T2 H
report n-values people [0.5]: W6 S. _5 M4 H, I9 t
end
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$ k5 X2 g# I! q: i( H1 l1 L7 [( Nto setup-plots' X( w" i1 L2 T7 P+ z w
% ^ J1 Q) j1 P. n
set xmax 30
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set ymax 1.0
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s' X( i6 h6 o' _' [* Dclear-all-plots% D9 O; k! z( R! d
/ g0 `1 a7 `, H7 u$ o; Lsetup-plot1
) @+ T% [0 r$ [$ L) n9 u! K# W
3 v, c E! D4 i Ksetup-plot2) ]& I5 Z; m& y8 p) X' b
- z$ ]$ R+ w" m
setup-plot3# f. @, @$ Y V' g9 J+ s3 T& z
end" C7 I. i' T1 A- R$ r
+ o7 x2 D7 b2 P6 [* K5 T) r;;run time procedures
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+ \5 w% n; Z( J+ b0 _) pto go- ^' E" s. u( N! u* I) ~0 i. v
. O5 j0 t( u, C0 c0 Z+ X
ask turtles [do-business]+ K& B5 l' M) n9 \* z2 {, c
end1 _1 U4 u3 g; l: T, z# D- G' E, I
. D6 {& Q" C. b9 tto do-business
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1 b2 x( n" P; ^: d# {
* W7 [2 ]5 T3 a0 X/ u1 r: _ O2 yrt random 360
2 u) ]" `: ]/ R) ] C% f8 e& p _0 L8 U
fd 1' w: Z! x: E$ O/ M
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ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
& T7 v0 R+ I* T J, O. B" s[trade-record-all]of self5 w; u+ v, Z) t( j& a" R/ Q
;;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)! U; }0 {# d4 C$ t h
[trade-record-all]of customer% g3 o1 w1 V8 J1 C/ D1 Q) k
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set [trade-record-one-len] of self length [trade-record-one] of self; n. w. r$ D, ^* a# \
, a& z6 J7 G6 X/ Jset trade-record-current( list (timer) (random money-upper-limit))) X- t4 h5 a3 {/ c6 J
) N4 n1 I8 |' j5 fask self [do-trust]9 I* ~- f2 U- _+ A3 G
;;先求i对j的信任度 f& ~$ Y+ I; |8 k5 m! n. C2 z, U+ r
, y- }. _+ ~0 T/ ?if ([trust-ok] of self)) T( r2 b9 e. G
;;根据i对j的信任度来决定是否与j进行交易[
9 g; J) m3 t( z* Q6 C6 N/ R6 dask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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( s; f( }; n8 g- c[4 e( V# A4 t$ q# u, a3 |
3 F4 E/ I6 Z* ?3 W; C; j, cdo-trade7 p) t* Z# i' S8 P# }8 z0 ?
6 A7 d, ^0 ^9 V! o: Z" iupdate-credibility-ijl0 ?2 }: r% t- E4 j% t( Q
, d5 ~' v; \/ y/ K3 ] O+ Uupdate-credibility-list4 K _) {. D; a+ i5 _
( l8 e/ {) q) F3 N# B7 j6 Q$ D' z8 ~7 H5 K
update-global-reputation-list8 W" p6 n* i1 n! D
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poll-class9 C! x) R9 Y6 e
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get-color M _+ Y5 O& n$ { W' z$ h. i
* o4 }1 E2 \1 G" i I]]1 q4 R, a! C9 _, i! v- W) G1 N
: Q& X3 N9 U1 Y9 K! D* }; g- C, a;;如果所得的信任度满足条件,则进行交易/ c9 O; h% q4 _
+ m9 x! H- M. T# f" M
[5 Z7 D' X) F7 C- P; k% L
" g0 u I, Z- @5 Trt random 360
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- a" N. a3 ~$ R9 j: V& Efd 1, R- k4 Q- e2 P
1 R; O8 Q4 V; o6 c; _2 a1 m' |' J
]) ^' R4 U6 V3 @2 Y- A4 w; f u; K
& y5 W3 i6 s. u* Q
end% ~! I5 U) ^1 j/ `, |& U4 _
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to do-trust ; w3 y0 U1 |+ c8 J. X
set trust-ok False/ R2 `2 }2 M" ^4 R
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- v9 |" d7 t/ k% H2 N- M3 L) a8 Nlet max-trade-times 0
|2 l9 X6 `3 S2 ?6 Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& G- F0 n. z6 z) T% e6 }let max-trade-money 0' r( I' }( c; \+ i/ _2 R* b3 `
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; p. I! f$ R" |9 M8 m! \1 a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% V, u. e* k7 E
}1 F7 `. H3 x, ?
, v4 j9 D7 A0 j$ u" G1 wget-global-proportion
; s: u8 f: x" E# L. P, ~; Olet trust-value
, y+ ?! q2 B( Ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)9 w" x# g) y7 q) n
if(trust-value > trade-trust-value)
1 }+ n/ L8 `! x( \7 N$ Q[set trust-ok true]
+ B+ O: k' G# M. M6 y5 o3 n3 G5 z: ?, kend
" i. Y V* q; l' n! s* Q" ^- M
8 G6 C& E& }* ` I; z- Mto get-global-proportion
3 r0 i: _5 B, T/ K zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 G# F8 m6 t* ~! j$ ^8 s& `4 ?
[set global-proportion 0]
2 o3 s' k5 ^& p5 F+ N[let i 09 K% V7 H7 N7 V. A/ \
let sum-money 0
* n4 V7 P! r: Uwhile[ i < people]
8 G6 |) d, F4 N6 n/ w[
6 S* ~+ Y1 I! V7 ?6 tif( length (item i! ?4 B6 }; U) ~1 D5 g# R
[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& I9 M. A9 X+ W9 w9 k
], w/ D2 @' R3 m0 s1 G5 q( x
]' g3 W% b) s. e! G
let j 0
) r6 V: m0 u# ]0 \, S+ \let note 0) O. u- S2 i1 Z% E: w0 U
while[ j < people]
5 i3 `# h! Q5 ]; |( o* _# }: ~) W[
, }, F4 ]+ e4 _( B$ y0 b( Rif( length (item i
7 H! q) F7 k( G5 B5 _: u[trade-record-all] of customer) > 3 )
( ^" j! {$ P* _- v, f- h[
1 \7 I/ u2 I" p6 @ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 a! }& F( O$ J6 M
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, U3 S8 q! E f8 s, J6 h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ V' b3 ]: t1 ]% B/ E]
E2 \0 _: W3 P8 I]2 ]3 \+ |+ q, Q" I9 Q8 @' W$ M; [
set global-proportion note! i0 h7 {% [$ _$ b8 g# E6 H$ z
]/ g! l6 s @; f; ` ~* y
end
# K* d* o, g$ h; \4 Y& a% [% g' a5 U9 D* {9 n* _" [8 W% A
to do-trade% X8 G) M3 h2 d8 e4 ?; B7 l
;;这个过程实际上是给双方作出评价的过程
; W% [. T% v: ~6 M2 R1 z% C( R& eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 i5 Y2 V! v( Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ ^- V% f' O- G" R0 n) i
set trade-record-current lput(timer) trade-record-current! X, W$ B8 T2 i; T, u6 l9 a
;;评价时间# P9 v. r4 W& O$ F5 z
ask myself [/ n! q6 L6 X. S* ]
update-local-reputation% h, ?9 R$ R, @( _0 n9 R
set trade-record-current lput([local-reputation] of myself) trade-record-current$ S$ Q9 b9 ^1 m6 ~. E) e
]
6 E; ]: n/ j ^/ h9 oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 n _3 N# m" ^6 t G- S" r3 B$ G;;将此次交易的记录加入到trade-record-one中, `/ Q* {& s5 R8 G' }+ ?5 _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) x. p* m1 `5 a4 d# Nlet note (item 2 trade-record-current )
9 r6 f5 `2 o0 S& `( j6 p, {set trade-record-current
' ^) |/ Q) n3 L* [5 _. k0 v& {1 |(replace-item 2 trade-record-current (item 3 trade-record-current))
. ^$ n: Y6 Y0 ]2 U0 Fset trade-record-current) \) J# w; b5 l6 N
(replace-item 3 trade-record-current note)( I' C. t3 e1 ]( P" g
9 X! j% T% m6 f! W' y# _
( Q1 z! j0 t; e/ Gask customer [
# T) p6 z, Y7 supdate-local-reputation/ w0 {8 w( Q1 w0 V( ^* r
set trade-record-current# S1 Y, C1 o& _; i: x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 `2 `. T% v: ]
]
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2 [/ S$ T9 F3 |! S
, ]) o; }+ t6 n0 V0 s# U! ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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$ X) ~4 c3 y7 g' ]' X/ Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& r* L# N2 l( u5 `;;将此次交易的记录加入到customer的trade-record-all中
% i4 K) U5 L: w6 _6 rend
+ M" G$ ]/ [/ r) G# |7 a9 p
+ E# A( X- l' x% J: b, `# Nto update-local-reputation
6 E7 B( U4 ~; ~+ V( A# u; {set [trade-record-one-len] of myself length [trade-record-one] of myself
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. W1 o9 G' v* w, N: ~1 X& f: j! ~+ R* w8 p" q6 r6 u9 z
;;if [trade-record-one-len] of myself > 3 / O4 L& t( G2 |0 T: x+ R
update-neighbor-total
2 o; V( B( h$ r, j N;;更新邻居节点的数目,在此进行
: E* U$ N0 E1 x! a4 Jlet i 30 ~ X8 _% C+ \0 T. \. |& G
let sum-time 0. [5 b( n1 }* C* r! l/ q! u% R2 [5 W( P
while[i < [trade-record-one-len] of myself]4 S/ @) P. ~, B1 D9 b3 `
[" G4 q$ A9 [" @+ G; v- D
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ b- f+ w& \/ W: cset i/ g& g/ E$ G1 J) M# r8 f; P
( i + 1)# q( l P# ~" @0 E! \
]
( q9 k% u9 r* U+ F7 {" n Tlet j 36 e( o& f' \" S! p' E0 B4 N3 u' b
let sum-money 0, D( x& h. D: Z( ~& Y6 Q
while[j < [trade-record-one-len] of myself]' S8 E6 h' d( T: L- \' @
[
# p$ }; `$ X) l Z$ E9 a) Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 r: D/ a# p! m# l" |+ ^# a
set j" Q5 |5 d% G4 ]4 u7 ~
( j + 1)6 j$ Y E% d3 l9 }, Y0 \0 n% z) y/ Z
]
9 t( b4 V3 D, U/ Vlet k 3% k+ ^& Z: I$ Z8 E9 N6 Q' X! G4 q
let power 0
9 s r- X. @- D, nlet local 0
8 V0 d5 H2 i. H0 N, \$ N g6 a, `while [k <[trade-record-one-len] of myself]
& { f. |4 Y+ p1 l) |[, l6 i# j5 w+ s) U& o$ a, w
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)
+ f; @: d; b. s& w) hset k (k + 1)
4 H9 U) m) B5 s4 D0 H! D. Y2 q4 g* N]9 C$ E& H7 \$ ^+ S- C
set [local-reputation] of myself (local)3 k) _/ |* w5 O6 i% z
end) R9 @- E, L* W' e% } O
* b0 K5 |6 D. W' k+ gto update-neighbor-total5 N) j9 y% c& ]# a d
8 N/ W4 P7 g& U
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 | J. I9 ?8 i# ^: K& R
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' a$ H) s7 {! p: |end
$ ]1 ~% U' ~# |+ M% A
* l8 b* ~. C; x9 n$ Nto update-credibility-ijl 3 j" ^% m) Q8 p' ~! n# s$ p9 A
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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% g- J$ V& Q
let l 0: x' j$ G) s" _3 ~2 R) [! H3 \
while[ l < people ]& e3 k9 u6 [8 k% |
;;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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; F" M" q5 P, O0 `let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! i4 }4 E. o9 l' b6 j- O
if (trade-record-one-j-l-len > 3)
2 ?* a" J* w( o& j! G+ y[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
5 p! C J# }! O9 ^( m; l3 i0 O( u9 Dlet i 3
4 l2 S5 S j, I e+ b) H6 |let sum-time 0
' g1 O9 i' \+ V4 l- k8 ^while[i < trade-record-one-len]
/ ] ^4 d% E& ~# G[; `& n6 \3 Y$ I6 B" A B$ w
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ r2 C" q$ a! B1 r# z* Xset i
6 e( S& f g( s q/ D( i + 1)
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let credibility-i-j-l 0+ ]& E+ Q$ E- q* [# B* f& l$ R ?
;;i评价(j对jl的评价); V7 F& T: j. [: d
let j 3
' s! ]4 g8 r" R- |' [let k 4+ L2 W E- E" u7 _
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
! W! p# a3 U3 V, [& [7 J7 Rset 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)0 ^2 o8 c, x$ N4 n) f
set j! Q" W- k9 \- Z
( j + 1)& z/ ]" Z* S! {: K
]% ]: s% `8 f8 p \: A
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 ))6 U2 ]( p5 j6 y. i- R
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 J+ v* b# \9 V; M7 K+ W
;;及时更新i对l的评价质量的评价" O" q' R) [7 ?1 J% Z. T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 Q) M6 G% u6 H7 l z1 u
set l (l + 1)
. W0 A7 A( i: z2 g1 k9 V/ u]- G2 c; {* Z/ X x. ]6 n* ^( Q+ d! j
end
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to update-credibility-list
0 H0 F, ^- F& I2 P% q, Llet i 0- L! F5 |+ w2 w& B9 O. v* z3 M
while[i < people]
( @7 ^+ s- {& \3 r9 b[" \' L- d7 A& s% Z8 h1 u
let j 0 ~( M' R# Z) a( [' b$ |- L
let note 0
0 o, c6 G9 F# h" N$ z" \let k 0 d/ O6 O% O; J! n) o
;;计作出过评价的邻居节点的数目
9 ?/ x9 R* z" E8 X5 d* g; E' cwhile[j < people]
( t: G( b( u/ K# Z. ~" {, `" r[* h2 ?8 r( m* i: ?& p. ~/ S
if (item j( [credibility] of turtle (i + 1)) != -1) O$ Y! n# v. d A
;;判断是否给本turtle的评价质量做出过评价的节点
1 u1 e8 W/ _$ {- {[set note (note + item j ([credibility]of turtle (i + 1)))
; Q8 L9 o, a" N9 J' Y) A;;*(exp (-(people - 2)))/(people - 2))]% u2 s g9 f; R" Y7 e
set k (k + 1)
0 X% c- O' r2 n" ~% |6 N]
1 Y2 g+ x" e5 C/ V8 w. C# a4 Kset j (j + 1)
# `6 R) J2 Y4 E9 w]
2 s& Y- g I2 T% Z; O3 yset note (note *(exp (- (1 / k)))/ k)
; k) d7 D3 |2 }" G0 lset credibility-list (replace-item i credibility-list note)
; \& [0 j4 {4 i4 gset i (i + 1) |/ ~9 F. _5 t# l( s$ b) t0 m
]& \5 C" V9 I7 C. j5 K+ E& n3 s
end
# a' m; E, F. B' Z' e" l
5 v! ^4 F* @" m; m3 R) l) nto update-global-reputation-list6 K5 X8 m' f! D3 r; x& ~+ N; q2 x6 N
let j 0
: u3 n7 K- R" rwhile[j < people]. h& B' v0 R; a3 |
[
6 x8 Y8 p% i P1 s6 ilet new 0
- {1 `) L( o3 O7 d, c4 l) _;;暂存新的一个全局声誉
9 R% t% Y# K2 C+ v3 U4 N$ Zlet i 0. j, V5 c. Z7 t
let sum-money 0
4 M. P0 d! {1 j9 N Hlet credibility-money 0) E& P% D7 R6 R8 c3 v5 I1 q- e
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 ?; i6 q" P' E( j
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
D# A- Y( ?9 w' {set i (i + 1)4 X: o5 X. f( q* ?
]
7 V8 W1 L' o# s- m( a" ilet k 08 T+ A! c# t/ V' Q9 k' N" A
let new1 09 R' S- n% c% {, q3 U* Q. B' p3 @
while [k < people]
6 t9 I1 L% m- h' s$ L[( c' n: _% E l# v1 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)- r$ Z1 D4 a3 R" X
set k (k + 1)- ^8 P6 a, G& F1 J- X1 l
]+ L. r1 c5 }9 K) U( [! o3 x& E2 m9 J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 n! C; r( Z# z+ n" [0 D
set global-reputation-list (replace-item j global-reputation-list new)
8 o* Z$ x& g$ e' Dset j (j + 1)
+ E% E, r, v/ y* K+ r2 X, [ i+ @0 t]9 B9 K; L8 w, t% R7 `
end
9 T& H Q2 `' ^
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to get-color
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( N+ w5 E4 F+ D( B3 n# nset color blue& o9 w) m, H2 N. p1 N* S1 M# J7 h4 Q
end# P2 D9 ?, U* n" p+ W$ h
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to poll-class9 @5 ]8 `4 O$ u; E: t
end& X) X: J. _6 N* N% A& `
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to setup-plot1. Q; Y) |' Q1 a* D8 m! G) h$ ]$ b+ u
+ k9 J1 `6 o5 K( S. k# R
set-current-plot "Trends-of-Local-reputation"
1 @5 |4 a5 }+ {& o% s% j3 K+ d# \* {# u
set-plot-x-range 0 xmax' p+ l0 _% K+ T6 n0 X6 X1 h( t( K
9 d1 E9 i! E" T+ I& \3 z1 Cset-plot-y-range 0.0 ymax
9 I: b! e. s, t# yend) U$ M: @: b7 R" S/ f: @
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to setup-plot20 }& Q$ D( i. B" t
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set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax
1 ]8 _/ j8 K& F; l) I r. F8 G0 x; `. j x$ n% v) N0 z
set-plot-y-range 0.0 ymax
& g4 q6 I3 D, @: v! `) Fend
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1 v; k( i T# Y3 s& P# ~' S/ Z" qto setup-plot3
. {- p: g9 L& n
1 j9 \. B- Z& N2 ~7 [3 rset-current-plot "Trends-of-credibility"+ X8 s; R# J9 d! `5 ^: p' d, B
# I- a4 K9 V+ i" k) z) O
set-plot-x-range 0 xmax
( V5 I: C4 M. a. f% L+ U% g
5 V7 v1 i1 C h( r. a; `9 |* Aset-plot-y-range 0.0 ymax
# }$ t( u; h! t% [# _end
+ q. g g- n' w2 a9 \& l- P! q% m/ S4 F0 d" s; B, O+ @
to do-plots. _% G2 c% Z, D' k$ ~* j2 v
set-current-plot "Trends-of-Local-reputation"
! P x" Z$ ^! x0 q6 [set-current-plot-pen "Honest service"# U& o5 t' B2 F T# Q
end2 V' f) h/ S6 }6 l
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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