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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
: G" X# H. b6 N/ m/ t! ]1 y* t8 eglobals[: k f( K* S9 z X; v6 j6 ^/ G
xmax5 y9 B( y& u) p
ymax
5 `+ N c4 `3 h9 Mglobal-reputation-list& M4 K. x, c+ j% p
1 b+ b5 ]) M! I) j, I
;;每一个turtle的全局声誉都存在此LIST中+ b& m2 S( a9 w, G# d
credibility-list
% A4 p$ A7 g( v( e5 i# m8 a;;每一个turtle的评价可信度6 M" H/ m. H) p( x
honest-service8 K4 w# m& [) m& I* U/ ^+ O
unhonest-service7 B; i& H) U, [, x& P; t) d9 P, v5 ]
oscillation
( H4 l. Z& Y6 Q' b3 k7 `0 g) ^' |rand-dynamic8 _/ k4 h0 p# M4 T; ^
]0 v' l, B) M7 j/ t& O
2 C9 q! A" M7 D( R1 |$ K0 x
turtles-own[' C" Z! \. h3 w2 F
trade-record-all
1 L$ B) I' Z0 J- J+ c;;a list of lists,由trade-record-one组成3 @/ e- ]0 K; t7 g: G) y
trade-record-one. M/ C' v) I6 f" y/ K# C
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]' z4 N4 @: Q2 z8 f, N! o8 r! U: d
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]
% Q6 l2 }6 C; a( w% I9 b) ycredibility-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( \$ E* a$ l/ J! b1 n
neighbor-total
' d# Y5 [* R, G4 ~;;记录该turtle的邻居节点的数目) f2 J' |* ? U" ~. Q* N0 r
trade-time5 I( \2 c% ~0 e2 m3 F/ `
;;当前发生交易的turtle的交易时间6 ~! m6 v9 g0 m, q( J7 J
appraise-give
1 W# S- W( q8 U$ P5 ~;;当前发生交易时给出的评价6 q/ k: _) j2 |$ C1 x' D+ X/ L
appraise-receive
6 T5 t) h$ o+ |! c, ?# }, H3 [ {;;当前发生交易时收到的评价
0 V* I- |) } y- o3 zappraise-time
3 t a% @, L5 O D4 O/ [, g;;当前发生交易时的评价时间
8 A2 _. l% \( y5 D* dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉- u9 M [& v- P7 x
trade-times-total! Z" \6 A$ w5 e
;;与当前turtle的交易总次数
, l! u, a! ~/ e8 Ttrade-money-total
; D7 t5 Z: {9 a8 L( [1 ?1 j; U;;与当前turtle的交易总金额) e, k+ Y7 G/ y* G4 a% i R4 B
local-reputation
" L0 w% } ^3 h% g* L. oglobal-reputation- Y- Y4 s0 q9 J, f& }0 Z( z
credibility4 l; u) E1 t( L: H/ N9 C+ N
;;评价可信度,每次交易后都需要更新
8 G$ W) K* I8 Y( m) i8 @credibility-all* J9 n0 c9 v9 a7 N: 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: I# G1 a/ d7 f/ S
% Y6 Q: t4 ~; ~
;;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0.58 w5 {5 O1 Z9 \- A) W0 x3 G1 L: u4 C5 ?! U
credibility-one* G' g( f4 i9 J6 a% f
;;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 x) a/ j9 M/ Z5 l" c N! j/ c
global-proportion
' P( i9 {, M/ W$ `( z1 Ocustomer! ~' d+ j1 Z3 E- l/ {0 y! @. W
customer-no. Y# X' w2 s+ j" Y% n
trust-ok
0 Q7 `3 d* X2 R0 ttrade-record-one-len;;trade-record-one的长度- ~6 V% Q+ b$ J4 M' |2 _
]& t- y4 i; h: H; l2 Y1 b
4 x0 O. _8 A, D/ `) c# C;;setup procedure
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to setup
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ca, d! }# s% j2 |; g* }. V) q1 ^
9 Y7 k' t4 k2 ?
initialize-settings2 T+ s5 |+ t# g) v. r: t
% T; u) g2 h) v) ^' B. Ocrt people [setup-turtles]
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reset-timer j1 E) G0 J8 A) [0 c+ J) G
1 c. f1 J7 v' I
poll-class
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setup-plots
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# G- H; R) z F3 j% xdo-plots
: J4 l% P4 M! P' Fend
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to initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 0
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/ K o! X' g2 P' X9 w, q: o8 rset unhonest-service 0
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4 D! X9 s6 J3 z! }" Sset oscillation 0% q/ N/ r; `% e# q5 c6 r# V
3 |6 E% K/ V1 i' f6 ]( v
set rand-dynamic 09 J- v* ~9 e1 D6 |$ @0 D; ?6 V7 |
end% }5 A! b: ~; i/ B- \9 s
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to setup-turtles
; [2 E& p2 O z5 H/ g: h2 S2 [set shape "person"
, O& v. h e* m8 W# wsetxy random-xcor random-ycor/ L; Q3 Q& B7 d5 o) i6 s& I! g
set trade-record-one []! X/ o6 [* u# C! s
' Q9 {- K% R7 m! R; r; F& c
set trade-record-all n-values people [(list (? + 1) 0 0)] % a0 |0 ~ L5 T) T K
( A+ L7 f" ]' Dset trade-record-current []" V3 D' z- f' g% \& D0 v
set credibility-receive []$ U$ K. |& E8 L
set local-reputation 0.56 i7 `6 C+ _& C9 b2 I
set neighbor-total 0# @5 H3 ~# r+ l$ G
set trade-times-total 02 O, f Y9 M+ {" V
set trade-money-total 0
8 ~1 _6 Z4 H; b7 ^6 A. R* Hset customer nobody4 f7 N6 ], S/ A' b0 d8 z- k
set credibility-all n-values people [creat-credibility]8 ?* c4 I* L- j5 D$ q( w
set credibility n-values people [-1]
; L" ~7 x6 z) Z2 H1 \) x! dget-color6 N1 z( i; u% B9 z( d9 I; H, A9 C
: [% r7 h( q7 F4 W1 K K
end
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, i) I/ D) k. c$ y4 P( q$ t* d' yto-report creat-credibility- r9 ]" w" p9 Q9 N
report n-values people [0.5]$ _ |$ r ]+ ], S" E
end. ^1 E v7 s: ?' q& u, q+ c
2 _6 V. w$ ]: H* m
to setup-plots
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$ I1 q0 \5 B+ Mset xmax 30
* ]4 u4 d* J4 f/ ^2 K5 s
" z" z8 m1 k8 K+ P- z5 r ?" _set ymax 1.0; b4 x- N: c8 L; Z8 s* a
) Q1 a2 z; s6 u9 g+ G2 _+ \clear-all-plots
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! @3 G, e9 T( y asetup-plot1, k N% E2 [9 e" H4 k
, r9 I3 A" u4 e9 m# p' Usetup-plot24 u- R& z0 n. |/ S, \) H' \ K
, M+ ^0 a0 u% q; F# V6 y% x8 dsetup-plot3) U% X- o \& O8 ?& V
end0 V$ L* y/ {; \9 l; @' w
7 M9 A6 D, ^4 A$ r; i! {5 o;;run time procedures* T; T6 M# ~: Z2 H" e* ?
* P4 I/ B- z# N6 j; i, Bto go5 M- r% q+ W$ ^
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ask turtles [do-business]
9 l/ v0 `: ~: ^ v6 k* {end: w3 k/ f/ d" R$ X; D9 d
5 G- K {% U& P% W* g
to do-business + K4 q1 k% e4 {% f2 r
) Q1 @, Y1 \9 q" ?* D5 q$ \4 D, d6 z$ y0 R% Q
rt random 3603 [' ?6 o$ h+ g o, J- Y
1 T e3 j5 @* M, a8 S5 K
fd 1* r. d' Y- @; Y: r
" T) G. m1 D+ e# B* G9 _ i. Y9 `ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
; [( L% e' h1 T6 t( {6 k& {& U3 Z1 w6 o, R5 f* {8 r' D! z9 n3 x6 ~: o6 y) _+ Y
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
- @2 z' z' C! ~! Z8 x[trade-record-all]of self
4 t7 C, a [6 d; ?7 S0 H, c;;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)9 \% ?: `( Q! X* K
[trade-record-all]of customer5 p, `4 c: \& B8 x% }% `
8 ?) C$ B8 x1 D8 F3 h
set [trade-record-one-len] of self length [trade-record-one] of self
$ k% ^, q. f% \! f+ k6 R2 i0 z, s/ C1 o. y% K
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]: u4 t8 `; m: M$ G
;;先求i对j的信任度
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if ([trust-ok] of self)7 Z/ p, x( r9 h1 g0 h8 [
;;根据i对j的信任度来决定是否与j进行交易[6 L0 U/ f, p8 g- A
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; q# }) A2 ]0 u2 p6 ^
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[2 B, q3 l7 ^( o5 a- _: O
2 o3 ^! K3 E& K# Y8 v' f) d: f
do-trade6 c' C! c$ k7 A* o
& q: J0 o2 P! Wupdate-credibility-ijl
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update-credibility-list
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update-global-reputation-list
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poll-class
& M0 L/ Y6 H1 m
4 C4 ?8 t8 b4 b% a' |% y2 \; Dget-color
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]]' x% G# C, V9 ]" k7 X k" p& U6 ]
) \. _% Q9 H) B* j" ~;;如果所得的信任度满足条件,则进行交易
: C' ^' J" Q \) i
3 s6 s/ R6 u# i2 p G. r[
# P$ T5 S. L3 Z$ i+ ?) u0 t$ }! h& I. n6 D
rt random 360: Y) H( t5 [2 n: M
3 l( @' k- z7 Gfd 1
2 e& y& A% j3 S Q ]$ k/ c( n6 m% Z+ K0 v5 f" w
]( q* y; e% {2 `+ P0 |( l8 _1 F
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end. d# u+ V, M$ @8 U0 c' w
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to do-trust
( O, W3 m7 j; p5 hset trust-ok False0 K) \! W) y8 l, o0 ]
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let max-trade-times 0
+ I x8 l" g+ G" t- G& M5 x. vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
v) j. ~& V. k, D0 `2 y8 vlet max-trade-money 0: Z% y- d" O3 v- b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 V5 n- r6 B- `# O* K% T, 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))
* e/ Z9 ~2 S& s# e( K, T% Y( @: K! j' a6 y" u; U. ^
, c; l! k% A0 o( W1 z% |# Pget-global-proportion
' `! x1 M, |: {- X, U8 jlet trust-value8 L* T& s9 u: G9 v
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)
3 {: ~) p( h- |+ Z% |3 w' {if(trust-value > trade-trust-value)
4 F* w3 [* _ h! A[set trust-ok true]2 l5 L; h- m: k5 ?* V" H e( K$ h
end
1 F( ?4 E7 W) l; ]2 z( f" m( d0 N Q3 M+ k r8 V; }
to get-global-proportion
* N& n. M* ?! A2 W$ Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, f1 i, i' ~: U4 n& K, J' B3 C[set global-proportion 0]- {7 g- Q9 Y# A6 ?1 l: B# r* @
[let i 0
& V/ @/ L8 j8 U3 A8 x Zlet sum-money 0. h0 v5 j: |) F9 m u+ B
while[ i < people] C! O4 V1 J% y1 Y
[
8 Y7 k) B3 ]2 U3 a1 {( k9 Sif( length (item i
1 }& m5 m, p N8 o' P[trade-record-all] of customer) > 3 )
- J: W: c4 L9 i' ~/ A- ]4 }[
, _4 ~# T9 u1 aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 H3 ^5 h B6 {$ m+ w4 [, k]
6 s+ r5 l7 C( n4 g]$ _$ j5 D$ \5 B
let j 0
$ Y% ?9 p5 Z& V8 u5 g. `let note 0
+ Y% H3 A0 \ H8 ?4 a! E) Cwhile[ j < people]
0 C4 V. a" P* F" l+ [[( f) k& K; Q) m9 O4 p. f7 }
if( length (item i
+ W# R8 n$ j; z/ D; h[trade-record-all] of customer) > 3 )3 A& k7 o0 X- ~
[
7 k& L1 U# i- ~, tifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( Z+ ~( l' T) }: G- e; P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( {6 g [* r e, Y+ s3 V2 C6 D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 ~, z1 f3 |' G3 Y. ~; f
]
' ~$ f6 z# n, I7 @+ R8 n]
% ]' b7 ]8 g5 ^$ t4 g" m( ^) V6 mset global-proportion note
! u/ ]: z- m/ i6 S4 ^5 S3 \) W]8 X4 }- i9 @4 }% W8 o; \' t- v+ ]
end
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to do-trade
! Q" R3 W1 u7 L# d2 x9 R: f;;这个过程实际上是给双方作出评价的过程
; ]$ `- ]) Q8 I4 n+ \; Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 Y3 Q9 ?$ v! ^. a( K. uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! U C6 T" d v+ kset trade-record-current lput(timer) trade-record-current
( K9 C# {4 D5 Z2 L+ X( H. f5 H& u;;评价时间. s! c7 G- x. ? C! k% |$ B5 }
ask myself [
8 r: E3 e; {" e+ ?4 v6 Dupdate-local-reputation
) T- |7 a# T( |; Y* B( ]/ a. w$ sset trade-record-current lput([local-reputation] of myself) trade-record-current
6 q0 O9 n7 v. m+ r' L]
p' }$ ]' g6 N0 `7 @% R* cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% o- l; ] a' `;;将此次交易的记录加入到trade-record-one中
. N# L Q* U1 s0 Rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 y! j" w" S* }' \let note (item 2 trade-record-current )
+ q7 |1 j: n1 o3 J% rset trade-record-current% j! D. N4 V6 z2 {$ w; j: S7 |
(replace-item 2 trade-record-current (item 3 trade-record-current))+ j0 R! b2 w7 K2 Y2 t. |2 ^
set trade-record-current7 l: X9 \) b7 q% D. S% f" G
(replace-item 3 trade-record-current note)
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4 C: {6 A9 T) V' U& }, U0 o, |9 E( D0 _& ]
ask customer [& i2 g: a* m8 H; f
update-local-reputation" O' D+ m8 Q7 c( L+ |
set trade-record-current/ L8 q; Q0 ]0 R1 W! ?
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * c8 h! [! N q. F3 z L
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" B# |+ Z8 O4 d7 Z6 c
/ q" E3 ?- c- { s$ D4 @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 X" S" f/ d5 U# Z; ]: i; p" `
9 K7 T+ e% x3 aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 g9 i2 k* B) m+ W {% H;;将此次交易的记录加入到customer的trade-record-all中* J6 a3 F( w. Y% g
end+ g! y4 i9 {* J) ?! C, [
! l: {+ o! y( {+ A( xto update-local-reputation" l7 C" L$ ?) b. r# `
set [trade-record-one-len] of myself length [trade-record-one] of myself
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1 k' R+ h a+ H- r. Z9 |# }8 b5 W9 z- ]) b& J8 [" ?/ S
;;if [trade-record-one-len] of myself > 3
4 }: x& D. Z& I# c: Lupdate-neighbor-total
1 }9 U- R; a0 U0 @8 h;;更新邻居节点的数目,在此进行$ z5 A. m3 K9 ~
let i 3
8 y ~' ]/ i* U$ [- d- rlet sum-time 0
4 n1 b5 J0 T9 m" `- y `& kwhile[i < [trade-record-one-len] of myself]( U( \1 |- H$ e7 @$ R+ G
[9 i1 p5 }. W' Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; p0 i6 }; k4 ^$ I, t3 tset i
7 l9 U% d5 m6 R( i + 1)
0 z4 b; N. _: y, U+ b4 K8 []
" z- Q3 L0 q" Elet j 3. G( X8 w6 G) ^9 N, s+ E
let sum-money 06 m; b) U$ g! s! p
while[j < [trade-record-one-len] of myself]1 H, ^- b% @; H5 M! v5 v
[4 H4 m, }0 O B! C
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 m3 W% R+ l6 |' q6 ]
set j d7 J/ M, D& t y
( j + 1)0 ~6 a# |, w0 Q( ~! S% j. w# h% ]
]1 @4 K" q% M- u6 A9 ?4 u, i* x
let k 3
+ j! y8 U t& `' i" v$ ?5 Xlet power 0
, r; d* N2 @$ Q8 Qlet local 0
$ C$ t8 M( B P+ P, `4 }while [k <[trade-record-one-len] of myself]- l% c3 W. z6 d' t
[) K3 o& g+ E( d7 X; K- G# b
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)
6 x1 f$ G+ B5 v6 ^% _ }; f) ?4 Vset k (k + 1)
. ?0 }% d; v6 u% ^7 y]6 C3 [: i# |( v4 h2 y
set [local-reputation] of myself (local)
" e5 B4 D" a! O; r8 `: v6 jend! \- K$ k9 M2 V8 @
* i2 F( n$ b( pto update-neighbor-total
9 L$ d1 m4 H+ A( Z i+ K+ ~. o
+ `6 z, I, a- G( t/ D' z' Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; ~5 Z, w D% f5 `& H# x8 h' m
: @) f" z; ^( o, m
$ G7 Z" W/ \ u r! z1 _; I# `end
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to update-credibility-ijl
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6 ^3 a& C* h/ E% t: b;;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。
0 s5 M9 A; J+ xlet l 07 ^. i# H1 j; @) W. u# I
while[ l < people ]3 R2 O9 {& ^; C/ F8 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ C) }/ {3 |: m& S
if (trade-record-one-j-l-len > 3)
* Z* Y& Z l) w5 r. Z7 \7 G[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
$ G9 i: N% S. J* Dlet i 3 X7 M N+ H7 |5 x, h
let sum-time 0
9 l- Q* e5 G! q3 _. y, Qwhile[i < trade-record-one-len]% \1 A- _' \# ^% O" }% w& W0 X
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): A4 w* [/ A; B" v* g' F$ ?; J
set i
1 f, a/ |7 G# S' L( i + 1)
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! W1 u$ |# M& D- Rlet credibility-i-j-l 0
; t) N5 v& q$ l+ ~;;i评价(j对jl的评价)
. Q9 |# R) j& ^) Q$ o9 h2 L; ilet j 3# h: ?# S. K2 Z5 f- I
let k 45 E9 e9 _. T% V6 ~
while[j < trade-record-one-len]
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: j' C2 p( o; _, Twhile [((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% J( n& ~# k* X% 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)1 j( c9 P2 W) l9 ~8 Z) w
set j
! B5 ?# \! J( y9 f$ e( 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 ))$ E. l. F/ L5 e7 p) s) u# q
1 {5 q9 c2 }- O
7 Q1 l7 d- t: ~& L5 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 E% e0 i2 ]/ Y- Q;;及时更新i对l的评价质量的评价$ I0 N+ V' A% X7 e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 v$ a8 F2 p5 h. Qset l (l + 1)* X0 k3 a- U) n" c0 k
]
3 m: Q7 G1 Q$ g3 y1 dend
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+ C X+ v$ s- D( }8 m/ U# w2 Z! j% Cto update-credibility-list
" ]7 I" r: D5 @+ z1 c, T3 hlet i 0
+ _5 A8 ^* |9 F8 u& e- lwhile[i < people]/ s+ E- g. F9 c" v+ l
[1 f/ u; V% h# n8 Q9 Q
let j 0
+ h( O/ N+ O" l6 P8 |( Tlet note 0
5 m. }: |1 K" ?$ blet k 0
$ q8 E( R8 E# T6 L$ [0 x! o: n;;计作出过评价的邻居节点的数目! V! s+ R2 x! k& |: P' K t6 e: [( v
while[j < people]
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. ]: A- i& b; C+ Eif (item j( [credibility] of turtle (i + 1)) != -1)
0 p" |7 D" C: b;;判断是否给本turtle的评价质量做出过评价的节点7 i1 |* A0 I2 i& ?
[set note (note + item j ([credibility]of turtle (i + 1)))1 I/ `) V' ~ w2 W
;;*(exp (-(people - 2)))/(people - 2))]
7 J: F! l3 ^/ s' F5 vset k (k + 1)
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set j (j + 1)3 M$ U5 ?9 R! w) a# }2 Z6 u! U: U
]. i a* s) }( x! a
set note (note *(exp (- (1 / k)))/ k)' H. y6 x0 G* b% e; {/ W8 O
set credibility-list (replace-item i credibility-list note)$ N7 P8 h: y% k" p& i% M6 k5 I
set i (i + 1)
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end
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# u; @* X7 y6 b9 ~2 Cto update-global-reputation-list' N1 X0 j- {& z5 y/ u x
let j 0$ n. }1 J# G1 h; y# `" w$ w+ W
while[j < people]4 e6 Q, q- \3 D% N1 y8 F) t& E
[
! e; ?1 K, \" D# V* Y% glet new 0# i' @2 s) ?! H. z. K+ ?; Q
;;暂存新的一个全局声誉
7 O, X7 x* R) k5 ?$ b6 _: Klet i 07 S3 ~6 P5 {- o+ Y) U: o& a
let sum-money 0+ j& F% _! ^: b: z/ P
let credibility-money 0
V& U2 m. Y. w% I1 N, b2 O$ T* Bwhile [i < people]! \( V/ I8 g% A4 I k) m
[9 u/ V# g+ |8 `& {+ w* m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 a# e% b. U5 I9 p% N! F6 v! D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' A' i5 L! b0 b) N( x" W Y7 |
set i (i + 1)1 {/ l. I2 h @& a/ \. m
]
: ^, O& u: J9 S; X7 Elet k 09 I" M$ d3 A; l
let new1 0
- k v. R+ V; ]( r; w/ h. kwhile [k < people]6 Q5 R4 H! g. s% U' `8 x! @' Y
[
7 P6 ?) K! v' I/ v7 N, n6 \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)
0 Y# p0 p/ q' n: C( q4 ]- H; E9 ]set k (k + 1)
, p# I* |7 w* T, r]
) M, Q4 S7 h% @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, g, x) @# |4 B5 o5 g' Fset global-reputation-list (replace-item j global-reputation-list new)
( D4 x, I, c3 f8 ?' d2 Bset j (j + 1)$ i, c6 l- `* P* ~6 v; n+ |3 X
]
1 O: V: M5 K. qend: ^9 ^! c: _% g
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& S6 ?" @+ ~/ ^ s5 Q2 Nto get-color- B4 D; _, S* ?0 a$ _# ~, a
5 }5 Q$ y% K8 B! x' |set color blue& |5 ?, |$ b( m4 m
end( H5 {* N2 W4 |# C3 c: B& o7 @
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to poll-class
- L8 V2 G4 V) o+ r: |end
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3 \8 ~2 n( w, i% p$ uto setup-plot1$ h Q& O" {3 b) o8 j/ P5 O
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set-current-plot "Trends-of-Local-reputation" e* g8 t' s( D9 Q4 T% I
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set-plot-x-range 0 xmax6 }1 e* \" D1 o
$ [% B3 Y) C/ `* C3 I" gset-plot-y-range 0.0 ymax
4 J% _( y/ u- cend
Z/ Q: Y; K" l) }3 \" d5 N+ b: P* ~# _
to setup-plot23 Y3 ~6 v3 G0 T# b; F0 p
# e+ D& u" C$ v! i* h B Dset-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax& k& T& Z3 N: m5 s* e2 {
) F4 L4 n& c. U- W( D: s/ Wset-plot-y-range 0.0 ymax7 d/ v+ I, R- J# ?* h6 r* I) a
end1 ~" t# k$ z$ b; n6 q' t
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to setup-plot3
% |1 _+ O+ ]# o! j
2 y: ]. `: w) T: {0 [3 Q5 oset-current-plot "Trends-of-credibility"
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9 e! n" ?. B, @set-plot-x-range 0 xmax1 n0 O4 m2 i8 u7 U1 _4 ]
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set-plot-y-range 0.0 ymax
( Q9 }3 @4 ?! j1 u# c4 {# p! [, o0 Kend
3 @, X" R3 }/ X5 M! U
7 V' h* x7 d9 g: f0 hto do-plots! H6 z* V+ `3 g+ s2 V8 J3 a# N
set-current-plot "Trends-of-Local-reputation") W# C5 U! S9 W* Z7 d9 w9 t5 F% q, q
set-current-plot-pen "Honest service"
1 S; M# F( x2 Pend
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' O2 w( i3 U* J4 y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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