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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
) t" | U1 f; h K @globals[. T9 ]$ b9 p1 E
xmax
) F3 M, T! a& e! W" ?9 i" N; Nymax7 C3 `+ |& C% M7 H
global-reputation-list, M/ R2 ?! K$ x6 R. f4 k3 F
~; v8 Q& W/ A;;每一个turtle的全局声誉都存在此LIST中
2 D5 I, {+ X7 D1 b8 v# r! d4 C: Fcredibility-list" A7 W2 V& u( W1 s6 Q
;;每一个turtle的评价可信度
. W6 K2 e/ ^+ P: f! I6 @honest-service
) b' o7 d0 a7 M' z2 S) x5 ^5 runhonest-service; U: p% b# m! A6 a/ j8 C
oscillation9 ~' a: ~! b+ e$ N. _9 D/ t7 j
rand-dynamic
6 E# ]! w- F0 c. y- b' ]: W B]4 g; k+ h$ j+ e" N( _& z& u
! z5 m2 W- }. c- w7 Z V4 Nturtles-own[) ~2 x3 x. z7 F4 E) h- C* i
trade-record-all
) d* {5 X1 j* Q1 ^8 J) c;;a list of lists,由trade-record-one组成3 d5 L/ `- C: a% m- R6 t7 Q
trade-record-one- E/ E9 b; X7 l! |3 _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
7 R: I0 ]. E# n$ h! K; H8 [6 T1 j) M) v& @. 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]]
0 ^1 t/ Z: `! Q. u. k, O: b0 Q4 ^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]
4 }. G/ d) M3 w" w1 t2 E4 qcredibility-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
# _& p* _9 }8 F; v; |$ lneighbor-total1 `! W X: N" w3 i
;;记录该turtle的邻居节点的数目7 O7 K9 u1 S4 {# e& l/ D0 A* j( X: j
trade-time
- r2 b9 C0 @2 C& s8 U4 y;;当前发生交易的turtle的交易时间7 [9 ^- w) z; N! V9 w* N* L: H
appraise-give/ q" B0 S, C/ c2 c7 [& ~& s
;;当前发生交易时给出的评价
# j" N8 o1 h4 tappraise-receive* r- q+ \( ?0 _' p
;;当前发生交易时收到的评价
K+ ~$ ]9 ]0 ?! L$ p% f) jappraise-time
+ V1 o7 Z( d1 q3 ?& m' O. c0 C;;当前发生交易时的评价时间7 [$ ]5 e1 S8 Q3 W; e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" ~' S+ d3 F3 L, F' O- Y# S/ Z5 Strade-times-total7 k5 K* T0 K9 f, s5 k- F. S
;;与当前turtle的交易总次数2 k: {% r! ?9 b) g8 ]
trade-money-total
8 b3 r! e: ?! f3 ];;与当前turtle的交易总金额
; R0 B2 X3 y$ Dlocal-reputation/ |1 Y4 [7 h4 Y/ Z5 R
global-reputation
9 H5 `& x: w; j4 w2 u# v u& Mcredibility
/ i$ U/ `% p- y2 @;;评价可信度,每次交易后都需要更新7 L) ~5 D$ s/ h5 `
credibility-all0 {; ^" v3 H. }4 r. Y- O
;;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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;;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
5 p5 ]2 v+ O7 i: h7 Qcredibility-one8 @! ~: T- A/ j7 z. 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0 |" I# j7 X2 u' ^! u4 Y2 L3 b
global-proportion
3 k) ]3 N* F7 }) Y( dcustomer# L9 I3 E, B S
customer-no
0 B+ x, Q( @7 r8 T/ Qtrust-ok! Y) e# ]4 z5 X/ e
trade-record-one-len;;trade-record-one的长度
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9 _3 T$ r! w+ @( Y;;setup procedure8 V T0 V: Y# c; H$ e( r' p
6 s0 I/ `4 E1 U1 V v m. r; c! t& I& Gto setup
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initialize-settings" n/ Q' e# e# h
1 r1 d7 s8 i; I8 \* o0 {
crt people [setup-turtles]
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reset-timer; F8 n1 g2 d3 _* {) V
3 U$ x1 N: t3 G: r* Qpoll-class1 J: P7 p6 I8 j" b5 I4 v
9 H9 z0 ?3 D0 A, I5 b
setup-plots- r3 T& s$ b3 g/ M2 T- E2 H
w+ j5 g, @" u2 g$ @1 b3 @2 B' |
do-plots# e% R8 n0 r* Q6 V% x' I3 f
end) M* b# l: _- q7 @( j: G7 ^3 O/ e9 _
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to initialize-settings
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set global-reputation-list []
D0 n8 y |5 o4 I5 p
" n8 x8 O4 M5 I2 ]4 |set credibility-list n-values people [0.5]8 K. \6 b4 H( Y0 H# O9 J& S
6 A# {2 C* }$ o% A8 V V: T
set honest-service 0: w1 @, C* p8 u6 V& c
3 E$ v9 J# b7 c; i" E9 v7 [set unhonest-service 0! d9 S2 l. M @ b0 F5 E9 @0 X; Y
# x7 O) R7 T1 z1 L( E4 l+ Y: rset oscillation 0
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set rand-dynamic 0
7 I5 a; F. D3 U6 F. z& ?9 v5 Dend
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to setup-turtles
+ M( y1 `2 o! t5 fset shape "person"/ I8 W6 x" a4 L# _ ]
setxy random-xcor random-ycor
+ U- M* U% o' ~/ Jset trade-record-one []
7 X; Z! v5 N7 ~0 ?1 n' U" N6 S7 w( N [$ \) D4 C
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 z E3 g% y8 P. U5 P
Q4 ] j8 l* t
set trade-record-current []3 Z5 G! f: T% ^ }& P6 D
set credibility-receive []
* d5 o4 D" O& ]1 D* K( qset local-reputation 0.5
) f" Y) i: F4 aset neighbor-total 0
! w l1 Q) p: u6 ]# I7 mset trade-times-total 0
9 J8 J C7 ]$ W" w1 ?set trade-money-total 08 |- u. X7 M) n5 ~/ a
set customer nobody( h! i% E4 r% E a& ` I% B
set credibility-all n-values people [creat-credibility]
# q! _. j, D- r5 Jset credibility n-values people [-1]
* A8 J6 ^* K+ G# {" nget-color( L k6 e6 `5 \. i0 {; d6 z
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end
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- F! D" V' h, _& ~4 M: u9 Bto-report creat-credibility
/ N1 u: |- o4 {" z; F6 I6 D: oreport n-values people [0.5]
* X# w% }# h0 t5 oend
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to setup-plots
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set xmax 30, o1 f4 j: H3 `7 u! y' }0 d, B8 V
1 X+ E0 x p( _: n8 V f) a
set ymax 1.0
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L2 t) X1 V7 `7 e- M6 e: {1 kclear-all-plots5 }. B5 K, B3 C6 C0 b# R8 x' s
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setup-plot1
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( t [1 d1 y' k! b. L; Osetup-plot2
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- z* X$ ?8 v$ Lsetup-plot3* F' s \1 F5 f b9 o# r" l) f
end$ Q. I2 p9 E* N4 ]1 c3 l% n
' [% z% i! u7 s6 e( b1 d- n$ [
;;run time procedures) f1 l# t" h% g4 A
& z$ ]. x: ~$ _' a" Eto go
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* Y- m- L" v* E3 y+ Q7 task turtles [do-business]
9 V- {6 e! H0 Cend
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to do-business 8 k( H8 g& _- ?" s
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' b, E2 C# ~, B( V6 p0 ]rt random 360
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6 P; R$ M9 g- O# P& |fd 1! b( G2 G* m" N$ q4 {; ]
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ifelse(other turtles-here != nobody)[5 z- a8 w) G* a/ A# S! y- E# D
; [4 F7 O. Q) s/ Z
set customer one-of other turtles-here+ \% e6 X& Z# S8 m$ N
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;; set [customer] of customer myself% f$ K5 w. D' w+ o g1 G+ {
/ |- y3 Q r8 c" r- J; A* ~set [trade-record-one] of self item (([who] of customer) - 1)$ b4 |% j- D! G p6 ]2 Q
[trade-record-all]of self2 H2 B# M% m% C; k( w
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# A/ D5 n: F0 D m4 N; `/ q
/ _$ n! Z- |- R3 l- |1 g5 Z& cset [trade-record-one] of customer item (([who] of self) - 1)1 u: e" O3 i1 m3 p
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self3 K" J( Y# J7 }/ _* X
, J: w: k5 F2 nset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]; H& o/ N0 h" O7 y4 P
;;先求i对j的信任度5 p. R* R( E1 I; m t
5 n$ p: _ x; Z9 q/ L- { Jif ([trust-ok] of self)2 {2 H) S. R4 ], P' p
;;根据i对j的信任度来决定是否与j进行交易[
6 k- M6 i! G7 Z; x" z: cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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" \' D: z- d2 h$ @5 W[+ Z0 d- i0 C- Z0 |7 i! {9 S# C
|. H; s0 g' X$ u& Ado-trade
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update-credibility-ijl
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update-credibility-list5 x2 I9 H5 _' x$ J1 S z
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update-global-reputation-list& o$ Z0 R. |: ]: p
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poll-class# z9 B) V) u, w2 l4 q
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get-color! n K9 L7 d$ E% ~
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]]
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8 @# v- @# q- W2 {0 J7 _;;如果所得的信任度满足条件,则进行交易6 p3 e. g8 p6 K! z
8 E' p! N+ W$ m8 O! v$ s[0 F$ o1 d/ E, D& b. B
" R# S% q: O& H" ]9 Qrt random 360/ c9 R* l/ F7 a b% J8 J
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fd 1
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]6 Q$ u$ n9 E& q {% u. B
' u! g! u# K4 h7 w X4 N2 Uend
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+ ]: S) ]( h* |) {$ D! w2 pto do-trust
) x. C* e" z2 uset trust-ok False' ^# n: a0 s( P( V1 b
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let max-trade-times 00 u: a! I6 [; r0 @3 `* K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 T' [* U* ]" v+ Hlet max-trade-money 0/ ]5 A [2 p! f( y3 @ u
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 R; K" o" s6 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))+ ?+ k( ?% e+ m6 V" m( F2 Z
! [5 b) X4 E/ K# I) [+ Y: a4 |1 L+ o% X
get-global-proportion7 V' G3 Y9 m4 j! L+ Y: F' C6 P* }5 W
let trust-value
) J2 |! g* h6 s+ X( Plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 y2 G" Z$ V& pif(trust-value > trade-trust-value). C2 x7 z' l8 m7 g" a
[set trust-ok true]
1 v6 q) G# a* l- ~9 Q5 }end
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to get-global-proportion
, v) T; ^) P- P* ^5 ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 k$ R" r0 u* q/ G; O[set global-proportion 0]
3 g/ a5 j1 Q% w: L! C1 j9 V[let i 0. @9 M/ n# { L
let sum-money 0
3 c+ `9 j$ c S8 }# N- P' Vwhile[ i < people]; y9 z2 E3 H* \4 J% T( B' a# w
[
2 ?8 o) J5 f2 G' }: Oif( length (item i: p4 i: V7 T- i5 n
[trade-record-all] of customer) > 3 )5 o* |! H3 k+ ?& H
[
3 `* E1 A7 c# Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 v t4 E2 {$ k( s$ h. s* h7 w]
# z, V, E1 y7 P! n( b]) E( S+ r. e/ p( {/ m
let j 0
) [+ C1 P* n7 I5 e" _; G; H: ^" Q' k2 Qlet note 0# I' P7 a3 H; D% o6 Y
while[ j < people]
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if( length (item i5 p4 D/ z: L; ?
[trade-record-all] of customer) > 3 )$ ~; X' _3 Q" f- ]" y
[! c8 o/ N2 ?4 ?* M# X9 u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 W, G# }& F9 ~( k1 h% u" P8 ]- q[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ r/ n# |4 }& h
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ P# ]4 d. T ^1 @/ F5 q0 ^: d]
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( ]; m q5 ^% x* K# \set global-proportion note
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end! @8 f" F4 D5 ~. _3 ^
& {4 P$ E7 H* i# P2 ^to do-trade
. D$ e" [, G( n2 B, |" \# ~) m;;这个过程实际上是给双方作出评价的过程) y& }0 }7 b# n8 L: r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* B& v+ z2 \$ }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- B" I! w6 ]: `$ Jset trade-record-current lput(timer) trade-record-current
/ Q1 _$ p; \' B) y4 u# u0 M;;评价时间9 ]* M. I$ S2 L
ask myself [
( l7 k2 s3 j6 \6 @/ Zupdate-local-reputation
. Q% c. f/ z3 d' x& Tset trade-record-current lput([local-reputation] of myself) trade-record-current
( l! }; u1 v) h5 D) ?0 U" _- v]$ ~0 `- `4 I6 F+ ]/ d2 a7 x2 ]
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; p" c) i4 r0 c5 w: P# [: U5 S;;将此次交易的记录加入到trade-record-one中
. x: d/ T' P, n$ l' n: H, [7 mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): p# F8 X# d6 A! D3 G& W2 n
let note (item 2 trade-record-current )
" O6 `. ?. o5 \' zset trade-record-current! P/ e( X+ d5 F9 y* u9 Y
(replace-item 2 trade-record-current (item 3 trade-record-current)) [7 [& k y9 @: s& z% ?9 s
set trade-record-current
; N2 s$ V6 E% j5 R6 U(replace-item 3 trade-record-current note)( F% A# a. T$ k: B4 P/ l* G
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0 B& s! @7 q8 I8 ]6 I* vask customer [
2 X1 f* e% |/ a2 I" k2 ?; i7 V% zupdate-local-reputation
) b0 V4 Q& }6 `8 D$ D8 W% qset trade-record-current
9 e' n& T0 _/ j0 F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 G/ L8 n! w8 w3 \! z# d! @# ^+ v]8 w( m7 c2 V9 C, F8 I
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+ {& O8 C% K! s( |set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& S8 X. V* k( \4 u1 i: A$ O$ C
$ {# _5 n5 k4 \% x7 ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( j! q# ]( l) i7 W; m* c+ J
;;将此次交易的记录加入到customer的trade-record-all中9 ]9 _$ l _; F
end
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1 T+ h; a+ T8 I7 z' C( ito update-local-reputation" ?* R* v; q, d) a0 V& `& U P1 r$ c
set [trade-record-one-len] of myself length [trade-record-one] of myself
5 ]$ a0 Z# I% [' F! p! O, I0 ^8 t, t6 S T+ E/ G8 c" T6 t7 |' N
2 j: u% f+ R, ^8 u& T9 b: F5 A! _;;if [trade-record-one-len] of myself > 3
9 ^- @3 a5 F, x I7 X Aupdate-neighbor-total
+ M0 N& K2 M" ?6 j# i! p;;更新邻居节点的数目,在此进行! D' x5 @* e Z6 U' ]: y
let i 3
& t( i% Q m* wlet sum-time 0
& o1 |# X0 N+ K& Q4 | L! rwhile[i < [trade-record-one-len] of myself]/ @: K* b' ?8 p4 ]! _
[
- \. \) l* S: |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" S, L' V3 V, @; J; Pset i
4 w1 g* g, d6 m9 {/ E F3 ]$ P( i + 1)- }* `& @; D! ~! f8 q
]$ O2 f3 L3 y- V! m. H
let j 3" p3 K m- c% @+ |; w
let sum-money 0
$ {$ r* P, ]* Iwhile[j < [trade-record-one-len] of myself]
. Y# ^. \8 ~* c[
* V% J$ l' I5 W# Q/ a2 Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
# Q7 H/ C" U& Y/ J9 l" Q- \set j
8 Z7 t$ B% j2 d$ y) `6 d+ c F( j + 1)% U* E1 ~" f, X$ S4 i
]
# \; Z4 F$ _1 a; c# ~% Blet k 33 d4 ]* \" _/ P+ ?0 g0 e
let power 0 v! K0 \# Y3 n3 \: o: G
let local 09 z/ a& Z2 P- K# m* S9 _
while [k <[trade-record-one-len] of myself]
; m' g$ f/ x* m( a' P$ P[
+ g$ f5 Y3 r7 o1 Y+ l2 z- E: bset 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)
2 I7 ?2 V" q8 |: @& M" u2 kset k (k + 1)
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set [local-reputation] of myself (local)# s. V* N. e8 m0 g8 ^
end& `2 X9 B, f6 s, Z
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to update-neighbor-total2 n1 l* D+ T2 r+ [( D3 C
2 B6 M5 b e2 d0 _1 s* X+ c) fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 B5 M% }/ x( {
+ b8 k) w! Q6 J) s0 l5 ?
3 c8 U* [; t4 }' l7 K2 v
end" f C# w. n) R9 _; v
0 `- \3 X8 `! a8 N5 B7 m$ Mto update-credibility-ijl
+ `; Z7 X4 {* ^# A. |: u; O; N! [3 ?% l7 J. u
;;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。7 m7 M. W( t8 R/ D
let l 0
" w3 I' d+ v' X" v: N4 V0 ?while[ l < people ]9 t1 b; j% |( O7 r1 M( w3 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
! X1 z$ g3 a1 |' |[
, E/ S% d! M [$ Y1 qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 {4 v v, ^" m& d7 |- |5 M& @; g/ vif (trade-record-one-j-l-len > 3)0 w# R9 B/ t) @' ?3 s3 w7 Q- Q
[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-one9 o2 T0 u0 Y% J3 e. q& k
let i 3
( o) N1 N# Z. _9 @let sum-time 08 B: b; r6 K/ ?; |' ~
while[i < trade-record-one-len]# ~0 q* f: `! z( s L' Z
[: P6 _9 p) o: E+ s
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* Q8 ]+ |- @" bset i
. a% p' s3 Y B7 ^4 \( i + 1)
6 V( m% Z. r! ^7 C. a/ }/ T" A]
5 e& P) s9 x7 Y# P, |let credibility-i-j-l 0) k9 @# V: t5 v! e* w
;;i评价(j对jl的评价). Z3 P1 v% s9 U3 p9 h- E
let j 3
, |2 o! e7 u. Hlet k 4* p' L" e2 ], K( \8 o4 b
while[j < trade-record-one-len]; m+ r+ b: d" N8 ]) W/ R- s
[
" C/ z7 ~$ s1 X2 y' |4 H/ a/ D* N" 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
( `! c* z6 h/ D* O* d( P Cset 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)
' C: C h, M% M8 l7 Oset j
' }+ T5 y6 d$ D1 P( s- V( q- K( j + 1)
) X8 z1 d$ L# |; Q. y4 r/ F4 b. i]
! F' M# `9 |( A& S, U% Jset [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 ))# u5 A, K% l' x6 n3 F! `
# l) c) G/ {* `" s% q0 k
9 Y3 x0 Y6 G: I, klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ D4 L7 ]/ w$ k' \2 C, z;;及时更新i对l的评价质量的评价" ^$ \; H1 T0 `5 g* M
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 A* R' A3 g% @set l (l + 1)
' Z2 N- G( l6 U/ ?) a]
$ z! u) \( V1 M8 v' cend! D6 v7 q9 O* e
* C7 e6 D( E' S" F
to update-credibility-list' O, ^# b& _& t8 L! f/ b
let i 0
" Q+ r& B$ G3 U% lwhile[i < people]5 ?5 ?3 N$ H7 u
[
% m2 z9 ^: N. k' w, w# F( z( h6 tlet j 00 g! @; T) c! {5 z+ B' O$ }4 J# ~6 w+ w
let note 0
* \6 X: z. t9 ?let k 0
O8 z- s7 w4 l" V1 ^6 A4 };;计作出过评价的邻居节点的数目 g. W' R+ a! S8 L# [0 a2 V
while[j < people]) l' x8 s* O) W8 G0 I1 O" f
[
; R3 k8 N* ?5 |3 Jif (item j( [credibility] of turtle (i + 1)) != -1)
4 A2 a: `5 H0 z+ Z7 g2 V( ]1 i;;判断是否给本turtle的评价质量做出过评价的节点( m/ s" g, b7 h& u
[set note (note + item j ([credibility]of turtle (i + 1)))# D0 b( q2 A, \1 F- S
;;*(exp (-(people - 2)))/(people - 2))]/ z; y( [+ b, w# d- { c p* S+ j
set k (k + 1)
8 O4 {* I% g% B* ^# \+ V]
) ]5 G2 M' |8 q1 |- m6 \, c3 @set j (j + 1)$ O" Q* Y3 t7 [1 }
]( O2 l4 Y6 f( \. ~
set note (note *(exp (- (1 / k)))/ k)) V/ A1 }" A+ P4 L$ o9 f
set credibility-list (replace-item i credibility-list note)8 ]* O: |* @) L, f
set i (i + 1)
. E5 b9 v, [- g6 r G]3 W0 q, V% |. [% Y& Z
end- N% g& [) |- i; ^
2 P$ r0 D c: @ w; n O, a: Jto update-global-reputation-list2 _( s) b |. J2 s& o
let j 0
5 h& z" |- r# i1 nwhile[j < people]
/ m, h5 h/ t3 E$ }" J" S[
- U$ E* r' |' D) ?. K5 ^+ ^% y& [let new 0
+ S8 P3 {% d: v9 \+ M1 c9 d* C' i;;暂存新的一个全局声誉
0 \# f T$ C9 K- \ R& b8 u7 Clet i 0
; k. a( O( ~; Z# Hlet sum-money 0
8 n' q( R7 y: n0 n) Elet credibility-money 02 R% X i4 t( u& X# n, ^8 B9 z
while [i < people]
$ B9 E) k: m- h& f' i[* B& P7 W# N, {1 s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* m0 S: e4 k% Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 L" E2 i2 d# pset i (i + 1)
a* H: t( V- B4 p) G9 X]
% H0 U! G2 o) `- \) @( P6 wlet k 0- r% c( {6 f3 m9 Y$ b2 T# p
let new1 0
: f8 E; C9 u5 Y3 J2 Kwhile [k < people]6 c3 o$ \* e- `, I$ k
[8 m* f: c0 Z% ]' s# c; [1 H6 d1 b6 D& 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)- T# `( Q( B g
set k (k + 1)
; U' s' V) c+ _" U# {] D4 u$ S% Z1 y* ~9 e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 E( b8 a+ |' i$ ^ pset global-reputation-list (replace-item j global-reputation-list new)5 Y4 J0 F6 P2 G W2 @5 \% ~
set j (j + 1)' [3 P, u+ b" O, H
]
2 _- s3 M0 n% s( gend6 P8 @( w. {2 ?/ j# p7 W
; V2 a! [( G' ~9 ]
$ W& S+ Q6 U+ z7 n
% `1 n' @( G2 ^- K
to get-color
1 ^1 u( a6 t, z7 X& `5 j4 E W, d6 H
set color blue2 o- K* [- {" D% C0 n
end. ?. F7 G9 U+ n1 [" k
# o8 _& c, d- _2 r" E
to poll-class5 ~$ |! L' d7 R$ _8 P
end
2 ?5 i1 p' b8 y/ Y( D& S5 B h& n1 l7 g& U( ^
to setup-plot16 z u( g/ w6 w, M# D& {: |. o
) C. \ s/ V# Q; Gset-current-plot "Trends-of-Local-reputation"
0 q) D8 i. V& z# m& n, A z; n# n+ h+ v4 r3 P' b
set-plot-x-range 0 xmax
# k3 h! | o- _3 q3 O
9 r- E& `$ `. r+ y7 j. sset-plot-y-range 0.0 ymax$ f: `$ F$ @/ b% w# z- L
end* A5 c/ T* U* @
' v2 X) I/ W0 R7 g5 r1 m' s8 b! xto setup-plot2' ^. ^$ f/ i3 p6 T Q
9 Y3 C5 s, R2 p& W) jset-current-plot "Trends-of-global-reputation"
9 ?! N; g; M+ G2 y; B- w& j( L/ e0 I7 J# |
set-plot-x-range 0 xmax! c* N5 b: b4 Y" f
* f& Q8 X. J* y5 m# D
set-plot-y-range 0.0 ymax
8 J( x" _4 d" J1 [# m4 aend# p, k! L, n! ], G. r
. s p7 J4 L, d$ J+ }; Z. ]
to setup-plot3
( J O. b z" g2 E ]$ u! A- E! V$ {& }2 ]( s5 g
set-current-plot "Trends-of-credibility"
1 v8 B8 J! n$ k, W# @4 z
# j% G& b2 W) \+ Q' n/ W [set-plot-x-range 0 xmax) ^! A7 v+ p1 _* K# @
+ H" x' Z8 f7 h3 X$ E! r! n( M! k
set-plot-y-range 0.0 ymax% k" T, k" L* p' z
end' g" Z3 Y; ^2 x" c
$ h! O8 @: i' b7 l p! ~to do-plots, u( I7 z8 H% ^/ z8 [* a. Y
set-current-plot "Trends-of-Local-reputation"6 r; ^- L' g- {8 g
set-current-plot-pen "Honest service"6 A. A. J7 z3 M/ m9 `
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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